Floating vehicle fixture for differential shell and clamping method

Abstract

The invention provides a floating vehicle fixture for a differential shell. The floating vehicle comprises a lathe chuck, a first locking component and a second locking component, the lathe chuck is provided with a base plate and an upper plate. An axially movable floating sleeve is placed into the upper plate, a pair of fixing blocks are symmetrically arranged on the upper plate, a positioning column is arranged on each fixing block and extends into a small sinking trough of the differential shell, the first locking component is arranged in the floating sleeve and extends into a center hole of the differential shell, and the second locking component is fixed onto the lathe chuck, extends from a window of the differential shell and is used for pressing the lower edge of the window. By the aid of the floating sleeve, a spherical side wall of the differential shell is supported by the floating sleeve, and three springs are arranged below the floating sleeve, so that the floating sleeve clings to a workpiece. By the aid of the first locking component and the second locking component, a workpiece is preliminarily and mainly clamped, so that the workpiece is clamped by the vehicle fixture.

Description

technical field [0001] The invention relates to a mechanical clamp, in particular to a floating vehicle clamp for a differential housing and a clamping method. Background technique [0002] In the processing of the automobile differential case, starting from the structural characteristics of the workpiece itself, the first process is often processed by lathe equipment. According to drawing requirements, lathe fixtures need to adopt casting features to ensure dimensional accuracy. Since the differential housing is generally a symmetrical structure with two windows, the design of the parting surface is relatively complicated, which causes certain difficulties in the selection of machining positioning points. The distance from the blank surface at the top of the two windows to the machining end surface It is also difficult to guarantee. Conventional lathe fixtures use standard chucks to clamp workpieces, and it is difficult to completely avoid the parting line of castings dur...

AI Technical Summary

Problems solved by technology

Since the differential housing generally has a symmetrical structure with two windows, the design of the parting surface is relatively complicated, which causes certain difficulties in the selection of machining positioning points. The distance from the blank surface at the top of the two windows to the machining end surface also difficult to guarantee

Conventional lathe fixtures use standard chucks to clamp workpieces, and it is difficult to completely avoid the parting line of castings during positioning, which causes errors in workpiece positioning

During high-speed rotary processing, the workpiece will shake a lot, and the processed products are prone to problems such as hole deviation, which will affect the yield of production

At the same time, conventional fixtures have high requirements on the clamping operation of the operator, and the human factors in the clamping process are greatly affected, and there are potentially large quality risks

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