Inner tooth pre-positioning device and inner tooth grinding method

Abstract

The invention discloses an inner tooth pre-positioning device and an inner tooth grinding method. The inner tooth pre-positioning device comprises a positioning support, a vertical spring, a horizontal spring, steel balls, a guide sleeve, a positioning disc and rolling bars. A gear ring with teeth to be ground is arranged on the positioning disc in a sleeving mode and makes contact with the upperend face of a tooth grinding support. The three rolling bars are arranged in an inner tooth groove of the gear ring along three arc grooves in the positioning disc. The gear ring is rotated, and thenthe rolling bars are pushed by an arc cam surface to achieve non-clearance positioning of the positioning disc and inner tooth pitch circles of the gear ring; and the positioning disc is pushed downwards to reach a tooth grinding position, and then tooth grinding can be conducted. According to the inner tooth pre-positioning device and the inner tooth grinding method, the procedure of tooth tip circle grinding does not need to be carried out, so that the production cost is reduced, and the production efficiency is improved; pre-positioning of the inner teeth is achieved in the inner tooth grinding procedure, and the link of manual alignment of tooth tip circles is omitted, so that the production efficiency in the inner tooth grinding process is improved; and meanwhile, the uncertainty of manual alignment is avoided, and the part machining quality is improved.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to an internal tooth pre-positioning device and an internal tooth grinding method. Background technique [0002] In the current planetary transmission, when the ring gear parts of the carburizing and quenching scheme are used for internal tooth grinding, in order to ensure the alignment of the grinding process, it is necessary to increase the inner hole grinding process to align the internal teeth to the addendum circle. Grinding is carried out as a process benchmark for the internal gear grinding process. There are following problems in the current grinding method of ring gear internal teeth: [0003] ⑴ It is necessary to increase the grinding process of tooth top circle, resulting in unnecessary waste. [0004] (2) During the process of grinding the addendum circle, aligning the internal teeth is completely done manually by the operator, which has low efficien...

AI Technical Summary

Problems solved by technology

[0003] ⑴ It is necessary to increase the process of grinding the tooth top circle, resulting in unnecessary waste

[0004] ⑵In the process of grinding the tooth top circle, the alignment of the inner teeth is completely done manually by the operator, which is inefficient and has great uncertainty in the alignment state

[0005] (3) During the internal tooth grinding process, the alignment of the addendum circle is completely done manually by the operator, which is inefficient and has great uncertainty in the alignment state

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