Fixture for end-tooth flange york boring lug hole and vehicle clamp spring groove and machining technology achieved by means of fixture

Abstract

The invention discloses a fixture for an end-tooth flange york boring lug hole and a vehicle clamp spring groove and a machining technology achieved by means of the fixture. The fixture comprises a fixture body, a positioning disc and a hydraulic clamping mechanism; the machining technology comprises the step that the machining procedures of the end-tooth flange york boring lug hole and the vehicle clamp spring groove are both positioned through end face teeth arranged on the bottom face of an end-tooth flange york and end face teeth of the fixture positioning disc. Accordingly, in the machining process of the end-tooth flange york lug hole of a transmission shaft, two original tedious positioning steps are reduced into one precise positioning process, two machining machine tools are reduced into one machine tool, therefore, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing fixtures, and in particular relates to a fixture for boring ear holes of end-tooth flange forks and car circlip grooves and its processing technology. Background technique [0002] The use requirements of the automobile transmission shaft assembly are quite special. It needs to rotate at a high speed when transmitting torque. The requirements for runout, dynamic balance accuracy and residual unbalance value are also getting higher and higher. [0003] When the existing transmission shaft end tooth flange fork is processing two lug holes, the two bolt holes of the end tooth flange fork are positioned in the CNC milling machine for boring processing, while the car ring groove and hole expansion process are carried out in the CNC milling machine. The ear hole is used for positioning in the CNC lathe, so in the two processes of ear hole processing, two positioning and clamping are used,...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new type of jig for boring ear holes of the transmission shaft end tooth flange fork, the clamp for the car circlip groove and its processing technology, and solve the problem of the clamp in the prior art for processing the transmission shaft end tooth flange fork. Uneven distance between the circlip grooves of the two middle ear holes, easy boring of the ear holes, out-of-tolerance shape and position of the ear holes, affecting the initial dynamic balance value of assembly and dynamic balance, etc.

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