Pressure assisting device of inner hole positioning fixture

Abstract

The invention relates to a pressure assisting device of an inner hole positioning fixture. The pressure assisting device comprises a pressure column, two handles, a pressure block, an extrusion bar and a positioning block, wherein the two handles are symmetrically welded at the two ends of the pressure column; an operator operates the pressure assisting device through the handles before and after work; the pressure block is square, and is welded at the upper end of the pressure column; the operator uses a hammer for powerfully beating the upper end surface of the pressure block, so that the extrusion bar linearly moves on a pump body inner hole fixture; the left end of the extrusion bar is welded on the pressure column, and the right end is provided with an external thread; an internal thread hole is formed in the positioning block; V-shaped slide blocks are evenly distributed on the outer wall of the positioning block; the positioning block and the extrusion bar are in threaded connection; and the mounting, the disassembly and the maintenance of the positioning block are convenient through the threaded connection mode. The pressure assisting device can assist the pump body inner hole fixture to realize the positioning locking function of a pump body inner hole, and has such advantages as simple operation, simple structure and good positioning locking effect.

Description

technical field [0001] The invention relates to a positioning fixture for auto parts, in particular to a pressing auxiliary device for an inner hole positioning fixture. Background technique [0002] The various pump accessories on the car include fuel pumps, oil pumps, brake master cylinders, brake sub-cylinders, water pumps, clutch master cylinders and clutch sub-cylinders, etc., and various pump accessories are composed of many parts. Among the parts, the pump body is the part with the longest processing time and the most complicated process. During the processing of the hole in the pump body, the positioning of the hole in the pump body needs to be realized by positioning fixtures, which can be realized through various positioning fixtures for auxiliary pump body processing. Smooth and high-precision machining of the pump body hole, therefore, the positioning fixture for auxiliary pump body processing plays a vital role in the process of pump body hole processing. In th...

AI Technical Summary

Problems solved by technology

In the existing market, various positioning fixtures for the inner hole of the pump generally adopt the method of positioning the inner hole by the positioning shaft, but the various positioning shafts in the prior art generally only play the role of positioning the inner hole, but do not play the role of locking the inner hole. The effect of this method makes it generally necessary to install a locking device for auxiliary positioning shaft positioning in the existing various pump body hole fixtures. This method increases the manufacturing cost, and has cumbersome operation, complex structure, small application range and locking and positioning effect. poor disadvantage

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