Relevant bibliographies by topics / Profile gear grinding

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Profile gear grinding'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Profile gear grinding"

1

Li, Wen Long, Li Wei, Hong Ying Hu, and Jian Liu. "Analysis on Characteristics of Minor Cycle Errors in Process of Grinding Involute Gears on Worm Wheel Gear Grinding Machine." Advanced Materials Research 706-708 (June 2013): 1209–12. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.1209.

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Usually, there are serious tooth-period errors in the process of grinding Involute gears on a worm wheel gear grinding machine. Being based on the process characteristics of grinding involute gears using a worm grinding wheel, radial errors and tangential errors of worm wheel gear grinding machine are analyzed. And conclusions for profile errors to be effected are given.
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Wang, Huiliang, Jubo Li, Yang Gao, and Jianjun Yang. "Closed-Loop Feedback Flank Errors Correction of Topographic Modification of Helical Gears Based on Form Grinding." Mathematical Problems in Engineering 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/635156.

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To increase quality, reduce heavy-duty gear noise, and avoid edge contact in manufacturing helical gears, a closed-loop feedback correction method in topographic modification tooth flank is proposed based on the gear form grinding. Equations of grinding wheel profile and grinding wheel additional radial motion are derived according to tooth segmented profile modification and longitudinal modification. Combined with gear form grinding kinematics principles, the equations of motion for each axis of five-axis computer numerical control forming grinding machine are established. Such topographical modification is achieved in gear form grinding with on-machine measurement. Based on a sensitivity analysis of polynomial coefficients of axis motion and the topographic flank errors by on-machine measuring, the corrections are determined through an optimization process that targets minimization of the tooth flank errors. A numerical example of gear grinding, including on-machine measurement and closed-loop feedback correction completing process, is presented. The validity of this flank correction method is demonstrated for tooth flank errors that are reduced. The approach is useful to precision manufacturing of spiral bevel and hypoid gears, too.
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He, Hong Xia. "Research on Forms of Grinding Allowance Based on NC Form Grinding Cylinder Gear." Applied Mechanics and Materials 42 (November 2010): 276–79. http://dx.doi.org/10.4028/www.scientific.net/amm.42.276.

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The machining principle and characteristics of form grinding cylinder gear are introduced as well as the characteristics of form grinding machine in this paper. By analyzing and comparing three kinds of grinding allowance for cylinder gear grinding, a reasonable and effective axial section shape is determined in experience, which is a practical profile to shape the axial section of grinding wheel for numerical control grinding cylinder gears.
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Kampka, Marco, Christoph Löpenhaus, and Fritz Klocke. "Development of a Methodology for Analyzation of the Influence of Pitch Diameter Shift on the Generating Gear Grinding Process." Advanced Materials Research 1140 (August 2016): 149–56. http://dx.doi.org/10.4028/www.scientific.net/amr.1140.149.

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In order to improve load carrying capacity and noise behaviour, case hardened gears are usually hard finished. One possible process for hard finishing of gears is generating gear grinding, which has replaced other grinding processes in batch production of small and middle sized gears due to high process efficiency. Especially generating gear grinding of large module gears with a module higher than mn > 8 mm can be challenging due to high process forces and the resulting excitation, which can influence gear quality negatively. TÜRICH suggested applying a pitch diameter shift during generating gear grinding to equal out the number of contact points between the left and right flanks of the gear with the grinding tool [1]. This qualitative approach is not sufficient to predict the process behaviour because it does not take the changing radii of the curvature of the involute into account and, therefore, the changing contact conditions along the gear profile. In this paper a methodology to quantify the influence of pitch diameter shift on the generating gear grinding process using a manufacturing simulation is introduced. Additionally this methodology is validated for one manufacturing test case.
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Gyéresi, Hunor András, Luciana Cristea, and Márton Máté. "The Improvement of the Precision of the Archimedean Spiral Toothline Gear Cutting Mill." Műszaki Tudományos Közlemények 14, no. 1 (April 1, 2021): 23–29. http://dx.doi.org/10.33894/mtk-2021.14.04.

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Abstract The precision of gears has a major influence on the quality of the transmission. If the gear cannot be finished by grinding, the precision of the generating tool becomes essential. Archimedean spiral toothline cylindrical gears are obtained by reciprocate meshing using a milling cutter built up by individual cutters, organized in groups. The profiles of edges must be realized with a minimal profile error. In order to ensure the quality and the precision of the meshed tooth surface, and also the profile constancy after re-sharpening, relief faces must be realized by a grinding relieving operation. A secondary effect of the kinematics of relieving end the spatial extent of the grinding wheel a post undercut results and this produces an inevitable profile error. The present paper discusses a possible grinding wheel setting that produces a maximum theoretical profile error under 1μm along the whole re-sharpening reserve of the cutter. The proposed setting can be realized on a classical relieving lathe.
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Lee, Yi Hui, Shih Syun Lin, and Yi Pei Shih. "Probe Position Planning for Measuring Cylindrical Gears on a Four-Axis CNC Machine." Advanced Materials Research 579 (October 2012): 297–311. http://dx.doi.org/10.4028/www.scientific.net/amr.579.297.

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During large-size gear manufacturing by form grinding, the actual tooth surfaces will differ from the theoretical tooth surface because of errors in the clamping fixture and machine axes and machining deflection. Therefore, to improve gear precision, the gear tooth deviations should be measured first and the flank correction implemented based on these deviations. To address the difficulty in large-size gear transit, we develop an on-machine scanning measurement for cylindrical gears on the five-axis CNC gear profile grinding machine that can measure the gear tooth deviations on the machine immediately after grinding, but only four axes are needed for the measurement. Our results can serve as a foundation for follow-up research on closed-loop flank correction technology. This measuring process, which is based on the AGMA standards, includes the (1) profile deviation, (2) helix deviation, (3) pitch deviation, and (4) flank topographic deviation. The mathematical models for measuring probe positioning are derived using the base circle method. We also calculate measuring positions that can serve as a basis for programming the NC codes of the measuring process. Finally, instead of the gear profile grinding machine, we used the six-axis CNC hypoid gear cutting machine for measuring experiments to verify the proposed mathematical models, and the experimental result was compared with Klingelnberg P40 gear measuring center.
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Hübner, Florian, Christoph Löpenhaus, Fritz Klocke, and Christian Brecher. "Extended Calculation Model for Generating Gear Grinding Processes." Advanced Materials Research 1140 (August 2016): 141–48. http://dx.doi.org/10.4028/www.scientific.net/amr.1140.141.

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Generally, hard finishing is the final step in manufacturing cylindrical gears. The most established processes for hard finishing are continuous generation grinding and discontinuous profile grinding [1]. Despite the wide industrial application of the continuous generation grinding process, only few scientific investigations exist. One possible reason for this are the complex contact conditions between tool and gear flank. Modelling the complex contact conditions between grinding worm and gear to calculate cutting forces, characteristic values as well as micro- and macroscopic gear geometry are the topics of this paper. The approaches are introduced and results for validation are presented and discussed.
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Wang, Na Jun, Yu Tang, and Peng Wang. "The Design and Simulation of Gear-Shaped Profile Chamfering Structure." Advanced Materials Research 305 (July 2011): 300–305. http://dx.doi.org/10.4028/www.scientific.net/amr.305.300.

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The paper studies gear chamfering process and carries out process of gear chamfering based on the tooth profile accompanying principle. Based on such method, the cone grinding wheel chamfering structure is designed. Taken the awl grinding wheel head organization as study object, influences of the grinding wheel structure size and installing position is studied. Model of gear chamfering is established based on the spatial geometry relations. Single gear was taken as an example, the degree and size of the edge for such gear after gear chamfering is calculated.
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Chang, Ling Chiao, S. J. Tsai, Jia Sheng Wei, and Pin Ching Chen. "Manufacturing of Cycloid Tooth Profile for RV and Cyclo Drives by Threaded Wheel Hobbing and Grinding." Key Engineering Materials 825 (October 2019): 106–13. http://dx.doi.org/10.4028/www.scientific.net/kem.825.106.

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Cycloid planetary gear drives are widely used in power and precision motion transmission because of high gear-ratio and good shock absorbability. The aim of the paper is to propose a synthesis approach to generate necessary profiles for manufacturing with thread-wheel type tools based on a given cycloid tooth profile. Two different cases are illustrated in the paper to calculate these profiles, the profiles of thread wheel on normal or axial section, the equivalent rack profile, as well as the profile of dressing or grinding wheel for grinding or hobbing.
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Su, Jian Xin, Xiao Zhong Deng, Xiao Zhong Ren, and Kai Xu. "Development of the Dressing Software for Form Grinding Wheel Used for Grinding Involute Helical Gears." Advanced Materials Research 97-101 (March 2010): 3556–59. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.3556.

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On the basis of establishing the mathematical model of grinding wheel profile by means of analytic method, the grinding wheel profile was determined. Different factors affecting gear form grinding was analyzed by means of numerical simulation. The form grinding wheel dressing software for grinding helical gear was developed, and the instruction for dressing grinding wheel profile was generated. Wheel dressing results show that the dressing software is correct and feasible.
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Dissertations / Theses on the topic "Profile gear grinding"

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Ліщенко, Наталя Володимирівна. "Підвищення продуктивності профільного зубошліфування на верстатах з ЧПК на основі адаптації елементів технологічної системи." Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/37663.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.02.08 – технологія машинобудування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена рішенню важливої науково-технічної проблеми підвищення продуктивності бездефектного профільного зубошліфування на верстатах з ЧПК на основі розробки відповідних технологічних передумов та підсистем проектування, моніторингу і технологічної діагностики операції, які дозволяють виконувати адаптацію елементів технологічної системи до більш високої продуктивності. Для цього розроблено методологію дослідження технологічної системи зубошліфування з використанням наукових методів моделювання, оптимізації і керування, а також відповідні технологічні передумови у вигляді комплексу цілеспрямованих методів і засобів інноваційної технології профільного зубошліфування: математичні моделі припуску для перетворення невизначеності припуску у величину відводу шліфувального круга, метод вирівнювання припуску по периферії зубчастого колеса без внесення корекції в його кутове положення, метод адаптивної правки профільного шліфувального круга тощо. Теоретично показано і практично підтверджено технологічну перевагу високопоруватих шліфувальних кругів у порівнянні зі переривчастими кругами. Виконано комплекс експериментальних досліджень і заводських випробувань, що підтвердили ефективність розроблених методів і засобів.
Thesis for the degree of doctor of technical sciences on specialty 05.02.08 – manufacturing engineering. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The thesis is devoted to solving an important scientific and technical problem of increasing the productivity of defect-free profile gear grinding on CNC machines on the basis of the development of appropriate technological preconditions and subsystems for the designing, monitoring and diagnosing of the operation, which allow adapting the elements of the grinding system to higher productivity. For this purpose a methodology is developed for researching the profile grinding system using scientific methods of modeling, optimization and control, as well as corresponding technology preconditions in the form of a set of purposeful methods and means of innovative profile grinding technology, to wit: grinding stock mathematical models for the transformation of the grinding stock uncertainty into the taking grinding wheel away from a gear to be grinded, method of the grinding stock aligning on the gear periphery without making corrections in its angular position, method of a profile grinding wheel adaptive dressing, etc. The software for these subsystems is created on the basis of the mathematical models of the temperature field with and without taking into account the effect of forced cooling. The technological superiority of high-porosity grinding wheel has been theoretically demonstrated and practically confirmed in comparison with special discontinuous wheel. Complex of experimental research and factory tests is performed for confirming the effectiveness of the methods and means developed.
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Ліщенко, Наталя Володимирівна. "Підвищення продуктивності профільного зубошліфування на верстатах з ЧПК на основі адаптації елементів технологічної системи." Thesis, Одеська національна академія харчових технологій, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/37665.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.02.08 – технологія машинобудування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена рішенню важливої науково-технічної проблеми підвищення продуктивності бездефектного профільного зубошліфування на верстатах з ЧПК на основі розробки відповідних технологічних передумов та підсистем проектування, моніторингу і технологічної діагностики операції, які дозволяють виконувати адаптацію елементів технологічної системи до більш високої продуктивності. Для цього розроблено методологію дослідження технологічної системи зубошліфування з використанням наукових методів моделювання, оптимізації і керування, а також відповідні технологічні передумови у вигляді комплексу цілеспрямованих методів і засобів інноваційної технології профільного зубошліфування: математичні моделі припуску для перетворення невизначеності припуску у величину відводу шліфувального круга, метод вирівнювання припуску по периферії зубчастого колеса без внесення корекції в його кутове положення, метод адаптивної правки профільного шліфувального круга тощо. Теоретично показано і практично підтверджено технологічну перевагу високопоруватих шліфувальних кругів у порівнянні зі переривчастими кругами. Виконано комплекс експериментальних досліджень і заводських випробувань, що підтвердили ефективність розроблених методів і засобів.
Thesis for the degree of doctor of technical sciences on specialty 05.02.08 – manufacturing engineering. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The thesis is devoted to solving an important scientific and technical problem of increasing the productivity of defect-free profile gear grinding on CNC machines on the basis of the development of appropriate technological preconditions and subsystems for the designing, monitoring and diagnosing of the operation, which allow adapting the elements of the grinding system to higher productivity. For this purpose a methodology is developed for researching the profile grinding system using scientific methods of modeling, optimization and control, as well as corresponding technology preconditions in the form of a set of purposeful methods and means of innovative profile grinding technology, to wit: grinding stock mathematical models for the transformation of the grinding stock uncertainty into the taking grinding wheel away from a gear to be grinded, method of the grinding stock aligning on the gear periphery without making corrections in its angular position, method of a profile grinding wheel adaptive dressing, etc. The software for these subsystems is created on the basis of the mathematical models of the temperature field with and without taking into account the effect of forced cooling. The technological superiority of high-porosity grinding wheel has been theoretically demonstrated and practically confirmed in comparison with special discontinuous wheel. Complex of experimental research and factory tests is performed for confirming the effectiveness of the methods and means developed.
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Huang, Shih-huei, and 黃詩惠. "Study on the Tooth Profile Generation of the Gear Grinding Machine with Grinding Worm." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/72248326149395138588.

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碩士
國立中正大學
機械工程學系暨研究所
100
The generating gear grinding with grinding worm is a high efficiency gear tooth form finishing process by continuous indexing generating. 　　Mathematical model for the generation of the gear grinding machine is established according to the real gear grinder in this thesis. The motion of each axis in the mathematical model is derived according to the electronic gear box (EGB) function in the controller of grinder. Four specialized curve tables, which are used to make tooth flank modification, are also included in the mathematical model. 　　The developed simulation software can be applied to obtain the simulated ground surface which is generated with the machine settings of the real gear grinder. The result of this study is the basis of further study on the tooth profile modification.
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Jiang, Yue-fong, and 蔣岳峰. "A STUDY ON THE MATHEMATICAL MODEL OF A FIVE-AXIS CNC GEAR PROFILE GRINDING MACHINE." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/x4hmk4.

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碩士
國立臺灣科技大學
機械工程系
98
There are three methods for finishing cylindrical gears, finish hobbing, finish shaving, and finish grinding. Grinding processes can be further divided into two types: form grinding and generating grinding. In the form grinding process, it is the line contact between the grinding wheel and the gear surface. In addition, because of advances in higher efficiency and easier way to achieve the purpose of flank correction through the wheel modification, compared with the generating grinding process, the form grinding is suitable for gears with large-size and large-module. Up to now, many grinding machines in Taiwan are imported from abroad, and the key techniques are also relied on foreign manufacturers. For the gear machines, because of complicated calculation in programming NC codes, the sophisticated manufacturing software needs to be provided to generate dressing and grinding NC codes automatically. Therefore, in this thesis, we establish the mathematical model for form grinding machine. First, we develop the mathematical model of gear profile for cylindrical gear and its profile modification methods, and then the axial profile of the grinding wheel are derived based on the form grinding theory and the gear profile. Additionally, a correction method for the wheel profile is proposed. We derive the machine settings of the five-axis CNC gear profile grinding machine from the given machine settings of a universal gear profile grinding machine. According to the derived machine settings, the grinding path for form grinding process can be determined, and it can be used to program the grinding NC code. Finally, we use Visual Basic 2008 as a tool to develop the manufacturing program of five-axis CNC gear profile grinding machine.
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Chang, Chin-yu, and 張欽宇. "NC PATH SIMULATION AND COLLISION DETECTION BASED ON THE FIVE-AXIS CNC GEAR PROFILE GRINDING MACHINE." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/wmw734.

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碩士
國立臺灣科技大學
機械工程系
99
In order to improve the precision of the cylindrical gear with large-size diameter, the cylindrical gear is grinding by profile grinding wheel. There are three processes of existing simultaneous five-axis CNC gear profile grinding machine, which including dressing, grinding, and on-machine measurement. The motion of this machine is more complicated, and its precision and price are high. Once the collision of machine happens, the workpiece is declared no longer useable and the clamping fixture is damaged. Critically, the charge of the repair for the damage of machine is expensive. In order to avoid the collision of machine, dry run is implemented to test whether the NC path is correct or not before actual manufacturing. Because of the complicated process, it needs to take long time for testing. At this time, the machine is idle and the production efficiency is reduced. Having this in mind, we develop the 3-D virtual reality simulation system in this study to easily simulate the NC path which the user had planned. It’s not only saves the time for dry run, but also avoids the collision of machine. We use Visual basic 2008 as the developing platform in this study, and the 3-D graphical library of OpenGL as the foundation of graph showing to develop the 3-D virtual reality NC path simulation and collision detection system. The simulation system is divided into three parts: (1) the complier of NC code, (2) the building of 3-D volume pixel, and (3) the detection of collision.
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Wang, Pang-Yu, and 王邦宇. "A STUDY ON THE HUMAN MACHINE INTERFACE OF THE FIX-AXIS CNC GEAR PROFILE GRINDING MACHINE." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/98ksht.

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碩士
國立臺灣科技大學
機械工程系
99
In this thesis, the human machine interface (HMI) of the five-axis CNC gear profile grinding machine is developed, and the NC controller interface is integrated into the PC window-based operator softeware to improve the manufacturing processes and make the operation easier. The measurement system is combined with the form grinding machine to provide the function of on-machine measurement for operator to avoid the human errors and increase the efficiency and precision of production. We use Visual Basic 2008 to read the coordinates of CNC servo axes and read/write the user and system variables from NC controller by importing the dynamic linking library (DLL). We also use Visual Basic 2008 to read the information of motor including frequency, electric current, and voltage through the transmission of RS485. The foregoing monitored results are conformed to customization interface to replace the original universal NC operation interface. For the on-machine scanning measurement, we use Visual Basic 2008 to read the offset of displacement transducer by importing the DLL. The coordinates of CNC servo axes and the offset of displacement transducer are monitored simultaneously and processed by LINQ Syntax. Additionally, the gear deviations are calculated and the results of the on-machine measurement are real-time showed in the developed HMI.
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Wu, Jian-Syun, and 吳建勲. "The Study on the Precision of Tooth Profile Ground by Regrinding Worm on the Gear Grinding Machine." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/05952575486751887613.

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碩士
國立中正大學
機械工程學系暨研究所
103
Gear is quite often used in mechanical industry. With highly demand of high precision machine, the need of improving flank accuracy of gear also increase relatively. Grinding is the most commonly used method for improving gear accuracy which can be divided into gear-form grinding method and gear-generating grinding method. The worm grinding wheel of gear-generating grinding method has the advantage of high efficiency and high accuracy which is suitable for mass production and small module’s gear grinding. The worm grinding wheel is commonly used in driving gear of vehicles, but with limitation of module and working depth. Dial type dresser are mostly applied to regrinding worm grinding wheel; however, after repeatedly processing grinding, the machining precision would decrease. Therefore, grinding wheel needs to be regrinding to ensure flank machining precision. This paper aims at using matrix to simulate multi-axis of SIEMENS’ EGB to construct Motion Matrixand the processing path. In addition, this paper use dual- spindles’ meshing equation of gear theory to gain grinding flank, and expressing the normal error of dimension through flank topographic. This paper utilizes gear grinding machine to simulate grinding, applying mathematical expression to design worm wheel parameter and dresser profile etc. Simplifying manufacturing process under acceptable precision is easier to produce the profile of dresser, it can helps to increase the range of grinding and decrease the cost of grinding. Through sensitivity analysis method, this paper discussed the installed position of gear grinding machine and dresser system, and the multi-axis’ impact on grinding flank. This paper also analyzed the impact toward flank accuracy from error of each direction. Keywrods: generating gear grinding,grinding worm,dresser
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Cai, Jia-hong, and 蔡佳宏. "A STUDY ON THE NC PROGRAMMING OF A ON-MACHINE SCANNING MEASUREMENT ON THE FIVE-AXIS CNC GEAR PROFILE GRINDING MACHINE." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/59mxnr.

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Abstract:
碩士
國立臺灣科技大學
機械工程系
99
During the large-size gear manufacturing by form grinding, the actual tooth surfaces will be different from the theoretical tooth surfaces because of the clamping fixture, machine error, and force or heat deflection. Therefore, the gear tooth deviation should be measured and then the flank correction is implemented based on the gear tooth deviation to improve the precision of gear. In domestic gear industry, most gears are off-machine measurement after manufacturing, but the errors and the time-consuming between loading and unloading will reduce the precision of gear and the efficiency of production. For this reason, we develop the on-machine measurement and the precision evaluation software for cylindrical gear on the five-axis CNC gear profile grinding machine. It can immediately measure the gear tooth deviation on-machine after grinding, calculate the values of gear tooth deviation, draw the figures of deviation curve, and evaluate the accuracy grades of gear tooth. In addition, this evaluation result can be the foundation for the follow-up research about closed-loop flank correction technology. Here, the scanning measurement is implemented on this on-machine measurement to increase the speed and the precision of measurement, and the developed measuring processes include (1) the flank deviation, (2) the lead deviation, (3) the pitch deviation, and (4) the flank topographic deviation. In this thesis, the definitions of gear tooth deviation are referred to Germany and American national standards, the NC programming is referred to the measuring paths of Klingelnberg P40 gear measuring center, and the mathematical models for position of measuring probe are also derived based on the theoretical involute curve. We use Visual Basic 2008 as a tool to develop the evaluation software for gear tooth accuracy. Finally, we use the 3-D virtual reality NC path simulation and collision detection system, which are developed by Chin-Yu Chang in the precision transmission laboratory of NTUST, to simulate the NC codes of on-machine measurement. The mathematical model for the position of the measuring probe derived in this thesis is verified by the result of simulation.
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Book chapters on the topic "Profile gear grinding"

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Lishchenko, N. V., and V. P. Larshin. "Profile Gear Grinding Temperature Determination." In Proceedings of the 4th International Conference on Industrial Engineering, 1723–30. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_185.

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Larshin, Vasily, and Natalya Lishchenko. "Adaptive Profile Gear Grinding Boosts Productivity of this Operation on the CNC Machine Tools." In Lecture Notes in Mechanical Engineering, 79–88. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93587-4_9.

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Zyzak, Piotr, Paweł Kobiela, Marek Gabrys, and Agnieszka Gawlak. "Analysis of Optimization Effects of Deflection Angle of a Disc-Type Grinding Wheel on Accuracy of Profile Dividing Grinding of Gears." In Lecture Notes in Mechanical Engineering, 97–108. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49910-5_10.

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Gutsalenko, Yuriy, and Tetyana Tretyak. "FORMATION OF WORKING SURFACES AND RESEARCH OF QUALITATIVE INDICATORS OF NON-EVOLVENT GEARS (REVIEW AND PROSPECTS OF DEVELOPMENT)." In Integration of traditional and innovation processes of development of modern science. Publishing House “Baltija Publishing”, 2020. http://dx.doi.org/10.30525/978-9934-26-021-6-35.

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From the standpoint of the development of possibilities of application in theory and practice, the works of Prof. B. A. Perepelitsa from Kharkov Polytechnic Institute and his disciples to develop an applied methodology of multiparameter mappings in relation to the profiling and functioning of complex curvilinear objects and transmission mechanisms in mechanical engineering, mainly with examples of gears, are presented. The work substantiates the relevance of the study of gears with a complex non-involute profile of the side surfaces of the teeth, which in some applications have advantages over involute gears and are devoid of some of their drawbacks associated with quality indicators. A technique for obtaining mating surfaces of the teeth of non-invasive gears as envelopes of the specified surfaces of the teeth of tools is described. A scheme for forming pairs of non-involute gears, from which a gearing can be composed, is proposed. At the same time, diamond-abrasive tools are considered as shaping the working gear profile in its cutting according to the copying scheme and finishing according to the rolling honing scheme. In the first case, the profile of a special shaped tool on a high-strength metal bond is supported by a master electrode according to the scheme of the anodic connection of the tool into the electric circuit of dressing, similar to diamond spark grinding. In the second case, the use of gear wheels-hones on elastic ligaments is shown. It is shown that to obtain the mating surfaces of the teeth of two non-involute gears, two tool rails can be used with the profiles of the side surfaces of the teeth opposite to each other. As a nonlinear profile of the tooth lateral surface of the tool rail, some part of one of the simulated flat kinematic curves is considered. A description of the program developed in accordance with the described method is given, which allows you to calculate the geometric characteristics of the shaped profiles of the gear pair wheels, visualize the shaping process, and also determine the quality indicators of the gearing. Thus, the prerequisites were created for choosing from the resulting geometric modeling of the curve field of such tooth profiles of the tools, which would provide the most rational combination of the tooth profiles of the gears processed by them and the required quality parameters of the gear teeth. The results of the study of the pressure ratio between the teeth of a gear and the overlap ratio of gears when choosing the shape of the tooth profiles are presented. A series of numerical experiments for gearing, formed by pairs of tool rails with different profiles of the side surfaces of the teeth straight, convex and concave, as well as convex-concave were performed. It is shown that non-involute gearing can have large reduced radii of curvature (and consequently smaller pressure coefficients) at the points of tangency of the profiles compared to involute gearing with a slight increase or decrease in the gearing overlap ratio. The most preferable is the variant of the rails with convex and concave tooth profiles, which provides the best values of both quality indicators of the engagement.
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Wang, S. L., B. C. Zhou, S. L. Sun, and C. G. Fang. "Effects of and compensation for tooth profile deviations of CNC gear profile grinding machines." In Power Engineering, 867–76. CRC Press, 2016. http://dx.doi.org/10.1201/9781315386829-126.

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Conference papers on the topic "Profile gear grinding"

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Masaki, Ryuzo, Hiroshi Nagata, and Jiro Hisada. "Improving Gear Profile With an Electroplated CBN Wheel for High Accuracy Gear Profile Grinding & the Development of a Truing Machine for High Accuracy Wheel Grinding." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1172.

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Abstract Load capacity of gears could be remarkably improved by making their tooth surface roughness smaller than 1μm Ry. In order to produce such gears, the authors developed a precision CNC gear grinding machine of the forming type. The shortcomings in using the above grinding machine was that the productivity of grinding with a conventional wheel was low, and the layer below the ground surface was occasionally damaged by a residual tensile stress. Consequently, to supplement the precision grinding process, the authors also developed a microtruing machine which creates a high accuracy profile and a uniform grain height of the electroplated cBN grinding wheel. The machine realized an axial stiffness of 300N / μm on the wheel spindle, and a positioning accuracy of about 50 ran. A conventional wheel was microtrued on the microtruing machine and tested for grinding a gear. The gear profile error, was 1 μm.
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Jin, Tan, Jun Yi, and Rui Cai. "Investigation on the Grinding Force, Power and Heat Flux Distributions Along the Tooth Profile in Form Grinding of Gears." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8707.

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This paper investigates the distributions of grinding force, power consumption and heat flux along the tooth profile in precision form grinding of gears. A semi-analytical grinding force model has been established considering the static and dynamic chip formation forces and also the sliding force. Variation of the local contact conditions between the wheel and gear flank along the gear tooth profile, including the local depth of cut, local wheel diameter, local wheel speed and also the equivalent wheel diameter has been analyzed. Combining the variation of local contact conditions with the semi-analytical grinding force model, the grinding force and power distributions along the gear tooth profile have been derived. The predicted values of grinding power under different wheel speeds, worktable speeds, radial grinding depths and different contact widths are compared with those experimentally obtained and the results show a reasonable agreement. The predicted grinding forces at different rolling angle positions under different grinding parameters show a good agreement when compared with those experimentally obtained. The heat flux distribution along the interface between the form grinding wheel and the gear flank in form gear grinding has been further calculated.
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Podzharov, Evgueni I. "Analysis of Geometric Parameters of the Tool Which Ensure the Maximum Gear Tooth Profile Accuracy." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5831.

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Abstract An analysis of possibilities for the selection of tool geometry parameters was made to reduce tooth profile errors during grinding of gears by different methods. The selection of parameters was based on the analysis of the grid diagram of a gear and a rack. Some formulas and graphs are presented for the selection of the pressure angle, module and addendum of the rack-tool. The results of grinding of experimental gears confirm the theoretical analysis.
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Klocke, Fritz, and Heiko Schlattmeier. "Surface Damage Caused by Gear Profile Grinding and Their Effects on Flank Load Carrying Capacity." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/ptg-48094.

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Instances of damage to discontinuous form ground and surface-hardened gears, especially of large scale, have recently increased. This damage may be attributed partly to a faulty grinding process with negative effects on the surface zones and the surface properties. In addition to its high accuracy, discontinuous form grinding is characterized by high material removal because of the line contact between grinding wheel and tooth flank. The efficiency and reliability of the process are affected not only by the use of optimized grinding wheel specifications and machining parameters, but also by the risk of local surface zone damage in the form of grinding burn on the tooth flank. The location and onset of local grinding burn damage have seemed for a long time to be random and unpredictable, for which reason the feed rates and material removal rates have been increased only incrementally in procedures used in industrial practice. The studies reported in the paper are intended to contribute to the knowledge of the interrelationships between surface zone damage and the effects on flank load-carrying capacity for the case of profile grinding. Grinding tests have been conducted in order to investigate more closely the occurrence of surface properties in the form of grinding burn as a function of grinding parameters. Further studies of the flank load carrying capacity of case hardened gears subjected to different surface properties are intended to provide a more detailed analysis of the interrelationship between gear geometry and different surface properties during the grinding process in a first step.
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Tang, Jinyuan, Changjiang Zhou, and Changde Wu. "Studies on FEM Geometrical Model of Gear Machined by Pre-Grinding Hob With Protuberance." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34914.

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Conjugate curves are cut by the different parts of a pre-grinding hob with protuberance, appearing in subsection nonlinearly, which makes the combined fillet curves difficult to describe with explicit equations and makes the tooth profile complex. Due to the complex tooth profile, the general CAD/CAE methods of geometrical modeling and structure analysis are rarely applied in the strength calculation and transmission performance study. Based on the generating principle, conjugate curve equations of the gear, cut by the pre-grinding hob, are derived. These conjugate curves cut by the different parts of the hob are solved, compressed, linked and synthesized numerically, and then the shape of complex tooth profile are calculated exactly. Combined by strong numeric calculating performance of MATLAB and the facility of ANSYS’S APDL, compositely modeling program with MATLAB full-text data files and APDL is developed based, then FEM (Finite Element Method) geometrical model of tooth profile machined by pre-grinding hob accurately established. According to the built gear model, the relations of bending strength to grinding allowance are researched. The studies show that the grinding allowance of the optimum bending strength is not in allowance value recommended by the pre-grinding JB/T Standard 7968.1-95. The surface quality of gear ignored, less pre-grinding allowance usually leads to more optimal bending strength.
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Yoshino, Hidehiro, Fumihiro Ohshima, and Ming Shao. "Finishing of Tooth Flanks of Pinion Cutter With Profiled Grinding Wheel in Consideration of Accuracy of Cutting Edge After Regrinding." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/ptg-14418.

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Abstract Two kinds of relief grinding methods for pinion cutters with profiled grinding wheels are proposed. One method finishes an involute pinion cutter with almost no regrinding error by giving the helical motion smaller or larger than that corresponding to the helix angle of the pinion cutter. Another is for a pinion cutter with an arbitrary profile, including the involute pinion cutter with a modified profile or protuberance. The tooth flank is finished by giving the three motions, i.e., the helical and approaching motions between the grinding wheel and work pinion cutter and the shifting motion of the grinding wheel. The profile calculation was conducted by using the element removal method. It was shown that the regrinding errors of the pinion cutters being finished by the proposed methods become smaller than that of pinion cutters finished by giving only the approaching motion (conventional method). The finishing tests of the involute helical pinion cutters were carried out on the CNC gear form-grinding machine with the four controlled axes. The profiles of cutting edges of the finished pinion cutters almost agreed with the calculated ones.
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He, Hongxia. "A Calculation for Smoothing the Axial Profile Shape of Grinding Wheel Based on Numerical Control Form Grinding Cylinder Gear." In 2011 International Conference on Measuring Technology and Mechatronics Automation (ICMTMA). IEEE, 2011. http://dx.doi.org/10.1109/icmtma.2011.10.

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Guo, Hui, Ning Zhao, and Shuyan Zhang. "Generation Simulation and Grinding Experiment of Face-Gear Based on Single Index Generating Method." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12566.

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A mathmatical model of generating face-gear by grinding disk is developed. The influence of all kinds of errors of alignment and profile on face-gear flank deviation is considered and investigated in this model, such as offset error and pressure angle error of grinding disk, location error of virtual pinion axis. A optimization method for decreasing flank deviation is proposed. The corresponding correction parameters of machine which can be used for manufacturing face gear can be computed by this optimization method. In this method, the square sum of tooth surface deviation is taken to be the objective function. A grinding experiment of face-gear is performed on a CNC grinding machine with five degrees of freedom, and the tooth flank deviation is measured on gear measuring center. The flank deviation is very large due to some alignment errors in the beginning. When the grinding machine is adjusted by optimization computation results mentioned above, the measurement results show that the deviation of grinded face-gear flank is reduced substantially. The benefit is to improve the grinding quality of face-gear by this method.
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Fu, X. J., G. Liu, S. J. Ma, and W. J. Zhang. "A Method to Determine Grinding Wheel Profiles for Manufacturing Threads in Planetary Roller Screw Mechanism." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-67012.

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In this paper, a method to determine the axial profiles of the grinding wheels for machining the screw, roller and nut in planetary roller screw mechanism is proposed. Firstly, the thread fillets of the screw, roller and nut are defined and there is a continuous first-order derivative at any point of the fillets. The equations of thread surfaces are derived. Secondly, the position relationship between grinding wheel and workpiece is described by using a coordinate transformation matrix. Thirdly, according to the theory of gear engagement, the equations of meshing for the grinding of the screw, roller and nut threads are developed. A parameterized program is designed by the meshing equations and the axial profiles of the grinding wheels are calculated. Finally, a specific example is provided and the influence of center distance and axis angle on the grinding wheel profiles is analyzed. The results show that the center distance has little influence of the grinding wheel profile.
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Yu, Guangbin, Yuxiang Shi, Wei Wang, and Guixian Li. "Meshing Theory and Simulation of Noninvolute Beveloid Gears With Crossed Axes." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35182.

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Based on the space engagement theory, a special type of non-involute beveloid gears meshing with line contact between crossed axes has been studied in this paper. The engagement equation and tooth profile equation have been presented by applying the theory of gearing. Meanwhile the tooth profile errors and axial errors have been calculated by means of numerical analysis in this paper. The changes of these errors and the main factors have been studied. As a numerical example, the three-dimensional simulation of beveloid gears between crossed axes has been finished by means of the CAD system, Pro/Engineer. A new way of gear tooth modification is developed based on the space engagement theory for the first time in this paper. By improving the wheel gear grinder of large plane grinding, the paper has provided the tooth modification method of manufacturing noninvolute beveloid gears meshing with line contact between crossed axes. Finally, an example and its calculation results are presented.
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