A constant velocity universal joint bell shell scraping tool

Abstract

The invention provides a constant velocity universal joint bell housing scraping and striking tool which comprises a support and a locating device arranged on the support and used for locating a workpiece. The locating device comprises a standard locating device used for carrying out standard locating on a workpiece, and the standard locating device comprises a workseat disc and a lining structure, wherein the lining structure is arranged on the workseat disc and capable of stretching into and being lined on the inner side wall of a workpiece. According to the constant velocity universal joint bell housing scraping and striking tool, the bottom portion of the inner cavity of the cup body of a bell housing is used as a standard to carry out location, the central hole of the end face of the cup body of the bell housing and the central hole of the end face of a rod portion have an identical machining standard, and accumulated errors caused by secondary standard adjustment are avoided.

Description

technical field [0001] The invention relates to a tooling for processing and manufacturing a constant velocity universal joint or a drive shaft, in particular to a scraping tooling for a bell-shaped shell of a constant velocity universal joint. Background technique [0002] The ball cage type constant velocity universal joint is a key component of the automobile drive system. There are inner and outer ball cages, and it mainly completes the task of power transmission from the gearbox to the driving wheels. As an important component of the constant velocity universal joint, the bell-shaped shell is processed in multiple processes based on the center hole of the end face of the rod as the process benchmark. The accuracy of the center hole is directly related to the processing quality of the product, especially the ellipse of the inner and outer diameters, runout, etc. Parameters affect the performance and life of constant velocity joints. The center hole processing of the end...

AI Technical Summary

Problems solved by technology

The above-mentioned existing technological scheme for processing the end surface and center hole of the bell-shaped shell of the outer spherical cage can meet the processing requirements for the end surface and the center hole of the bell-shaped shell under certain conditions, but there are certain restrictive factors: ①. The processing of the end surface of the cup body is completed based on the bottom of the inner cavity, and then the end surface of the rod part and the center hole are processed based on the end surface of the bell-shaped cup body as the positioning reference. ; ②. The existing tooling fixture mainly locks the bell-shaped shell cup body horizontally. When the equipment is in operation, the vibration will cause the product to fluctuate longitudinally relative to the fixture, resulting in low concentricity of the center hole of the rod; ③. The existing The technical solution can only perform single-piece clamping and positioning processing on the bell-shaped shell, and the production efficiency is low

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