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2009•The Proceedings of the JSME international conference on motion and power transmissionsOpen access

GM-03 CUTTING OF FACE GEAR FOR HIGH REDUCTION GEAR DRIVES(MANUFACTURING OF GEARS)

Fumihiro Ohshima, Hidehiro YOSHINO

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Abstract

This paper describes cutting methods for a face gear meshing with a large helix pinion with a small number of teeth. This type of face gear may be cut with the hob having the same profile of the pinion. But, it is known that interference between the hob tooth flank and gear blank and the profile error based on a cutter feed are apt to occur. In this paper, mechanisms that the interference and the profile error occur are investigated numerically. And, the cutting conditions for no interference and smaller profile errors are shown. Cutting tests of the face gear were conducted on the hobbing machine with a tangential feed attachment. Moreover, meshing tests were conducted using the face gear cut by applying the proposed method. As the results, good contact patterns with smooth meshing were obtained.

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What this paper is about

This paper describes cutting methods for a face gear meshing with a large helix pinion with a small number of teeth. This type of face gear may be cut with the hob having the same profile of the pinion. But, it is known that interference between the hob tooth flank and gear blank and the profile error based on a cutter feed are apt to occur. In this paper, mechanisms that the interference and the profile error occur are investigated numerically. And, the cutting conditions for no interference and smaller profile errors are shown. Cutting tests of the face gear were conducted on the hobbing machine with a tangential feed attachment. Moreover, meshing tests were conducted using the face gear cut by applying the proposed method. As the results, good contact patterns with smooth meshing were obtained.

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Available abstract

This paper describes cutting methods for a face gear meshing with a large helix pinion with a small number of teeth. This type of face gear may be cut with the hob having the same profile of the pinion. But, it is known that interference between the hob tooth flank and gear blank and the profile error based on a cutter feed are apt to occur. In this paper, mechanisms that the interference and the profile error occur are investigated numerically. And, the cutting conditions for no interference and smaller profile errors are shown. Cutting tests of the face gear were conducted on the hobbing machine with a tangential feed attachment. Moreover, meshing tests were conducted using the face gear cut by applying the proposed method. As the results, good contact patterns with smooth meshing were obtained.

Key concepts: Pinion, Hobbing, Blank, Flank, Spiral bevel gear, Face (sociological concept), Non-circular gear, Interference (communication)

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GM-03 CUTTING OF FACE GEAR FOR HIGH REDUCTION GEAR DRIVES(MANUFACTURING OF GEARS) — Research Paper | ScholarLens