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Research Papers

Multistep Method for Grinding Face-Gear by Worm

[+] Author and Article Information
Yuansheng Zhou, Jinyuan Tang, Heng Zhou, Feng Yin

State Key Laboratory on High Performance
Complex Manufacturing,
School of Mechanical and Electrical Engineering,
Central South University,
Changsha 410083, China

Manuscript received June 9, 2014; final manuscript received April 5, 2016; published online May 25, 2016. Assoc. Editor: Allen Y. Yi.

J. Manuf. Sci. Eng 138(7), 071013 (May 25, 2016) (8 pages) Paper No: MANU-14-1316; doi: 10.1115/1.4033387 History: Received June 09, 2014; Revised April 05, 2016

With the original worm grinding method to manufacture face-gear, the mathematical models of shaper, worm, and face-gear are established at the beginning. Subsequently, a problem of the original grinding method is illustrated that the working part of the face-gear tooth surface may not be covered completely. To overcome this problem, multistep grinding method for completely grinding the whole working part is proposed by studying contact lines of the tooth surface and singularities of the worm thread surface. The proposed method is verified in matlab with theoretical analysis. Finally, the simulations of the original method and the multistep method in the vericut software verify the feasibility and correctness of the proposed method. The study provides an effective and precise approach to grinding the face-gear.

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Copyright © 2016 by ASME
Topics: Grinding , Gears , Simulation
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Figures

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Fig. 1

(a) Meshing of shaper, worm, and face-gear, (b) coordinate systems applied for the generation of worm surface, and (c) involute profiles of shaper

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Fig. 2

The contact lines on face-gear tooth surface

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Fig. 3

The singular restrictive lines and contact lines on shaper surface

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Fig. 4

Illustration of face-gear surface generated by worm

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Fig. 5

Illustration of simultaneous meshing of shaper, worm, and face-gear

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Fig. 6

Illustration of multistep method for grinding face-gear

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Fig. 7

Coordinate systems of generating face-gear based on the multistep method

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Fig. 8

The contact points on face-gear surface in two steps, respectively

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Fig. 9

The final results of the two steps overlapped together

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Fig. 10

The simulation environment established in vericut

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Fig. 11

The result of simulation in vericut by the original method

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Fig. 12

The result of AUTO-DIFF by the original method

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Fig. 13

The result of AUTO-DIFF by the multistep method

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