Machining Simulation of Equal Base Circle Bevel Gear Using Disc Cutter

et al. 2022

J. Phys.: Conf. Ser.

The machining method of double-arc spiral internal bevel gear with nutation drive-by milling cutter was proposed in this paper. The mathematical modelling of milling cutter trajectory and axial cut-off of forming milling cutter was established, the special machining tool model of bevel gear was further developed by Solidcam, the simulation machining of bevel gear was carried out. Then, the gear model obtained after simulation was compared and analyzed with the theoretical gear model, and the ideal experimental results, confirmed the CNC modelling milling method processing technology could be used to process bevel gears, the research is very important to improve the development of nutation dynamic transmission.

Section: Principle Of Cnc Modelling and Milling Methods Processing Technologymentioning

confidence: 99%

Mathematical modelling and simulation machining of CNC milling of double-arc spiral internal bevel gear with nutation drive

Xie

Yao

et al. 2022

J. Phys.: Conf. Ser.

“…Since the application of finger-shaped milling cutter belongs to copying manufacture, machining equal base circle bevel gears with a pot-shaped gear cutter can be achieved. Moreover, through the proper design of modification parameters of axis section as well as dimensional positions and poses for the cutter, the tooth surface with equal base circle features can also be machined by a pot-shaped gear cutter (Wang, at al., 2014). …”

Section: Study On Theoretical Feasibilitymentioning

confidence: 99%

The theoretical and experimental research of machining equal base circle bevel gears with a pot-shaped milling cutter

Deng

Deng

et al. 2015

JAMDSM

Self Cite

The purpose of this paper is to achieve machining equal base circle bevel gears with a pot-shaped gear cutter. Based on the theory, the feasibility is analyzed, the coordinate systems of cutting, on both convex and concave surfaces, are established, and the mutual transformation matrices of these cutting coordinate systems are obtained. With the pot-shaped cutter coordinate system, the unit tangential vector and normal vector of the curved surface are calculated. Then, the tool surface point velocity vector under the fixed coordinate system is worked out through solving the instantaneous angular velocity of the points on the wheel billet and vector of the cutter curved surface. Finally, after establishing and solving of the meshing equations on the conjugate contact point between the cutter curved surface and tooth surface, the target machining expression is presented. The three dimensional tooth surface is modeled by Matlab, solving the contact line family at different locations on the cutter, and then comparison between the resulted tooth surface and the theoretical one is conducted. The tooth cutting experiment verified the feasibility of the proposed machining processes, which may lay a solid foundation for the industrial application of this new method.

“…Therefore, in order to plan the machining path during the NC programming to the bevel gear and automatically programming in UG software, the digital processing based on the equal base circle bevel gear theory is necessary, and accurate modeling in UG software, this is the key points to the NC machining to the equal base circle bevel gear with UG software [3,4].…”

Section: Brief Introduction Of the Equal Base Circle Bevel Gearmentioning

confidence: 99%

Digitized Modeling and Machining Simulation of Equal Base Bevel Gear

Feng

et al. 2018

ITM Web Conf.

Self Cite

Abstract. In order to achieve the NC machining to the equal base circle bevel gear with a standard cutter, to plan the machining path efficiently and to predict machining interference, based on the equal base circle bevel gear theory, the machining coordinate system for the bevel gear was established, according to gear tooth surface equations of the bevel gears, the tooth surface discretization function was derived, and through the calculation and get the discrete points, the gear surface was modeled in the software UG, and then the planning of the machining path, automatic programming and simulation processing were done. At last, simulation processing, analysis and comparison to the gear surface were carried on with the software VERICUT, improved that the gear surface modeling and NC machining methods were correct and feasible. Brief introduction of the equal base circle bevel gearAccording to the traditional theory of the equal base circle bevel gear, using the fingershaped milling cutter to machine the bevel gear, through controlling the finger-shaped milling cutter and wheel billet to achieve specific relative motion, to make sure that the base circle radius of the bevel gear at different cone distances is same, the tooth profile will not change suddenly, in which way to machine the entire tooth surface accurately with only one milling cutter. However, since the finger-shaped milling cutter is special tools, the profile accuracy of its shaft cross-sectional shape depends on the accuracy of the sample plate and the technical level of the worker, which means the high production cost and low precision of the cutter, what's more, the cutter must be changed many times due to the wear and tear of the cutters during the machining to large size gear, Because the difficult of making sure the accuracy is consistent to multiple cutters, so, it's more difficult to manufacture the cutter and the manufacturing costs is high, and the gear machining accuracy is low. Therefore, using a common ball end milling cutter to achieve the finishing of the gear surface, which is an effective way to improve the machining accuracy and reduce the manufacturing cost [1,2].The software UG combines the process of geometric modeling, cutter Location, graphic display and post processing together during the components machining, the problems