Universal fixture of roughly turned sliding fork excircle

Abstract

The invention discloses a universal fixture of a roughly turned sliding fork excircle, which comprises a transition plate, wherein a through sliding groove of which the cross section is T-shaped is formed on one side face of the transition plate along the equally dividing central line; two T-shaped slide blocks which are symmetrical around the centre of the transition plate are arranged in the sliding groove; each slide block is connected with a detachable V-shaped block through an axial fastening screw; a limit strip extending into the sliding groove is arranged on one side, close to the transition plate, of the V-shaped block; and a positioning mechanism is axially arranged in the centre of the transition plate. The universer fixture has the advantages that: the design is reasonable, the structure is simple, the shortcomings of a traditional fixture are overcome, the requirements of excircle processing of various sliding forks are met, the processing precision of parts is improved, convenience in quick adjustment is realized, the relative distance of the V-shaped blocks can be adjusted only by loosening screws, the aim of replacing processes varieties can be fulfilled by replacing a positioning shaft and a centring plate, the number of fixtures is correspondingly reduced, the manufacturing cost and inventory of the fixtures are saved, the production efficiency is improved, and the effect is obvious.

Description

technical field [0001] The invention belongs to the technical field of machining and manufacturing of mechanical parts, and in particular relates to a universal clamp for the outer circle of a sliding fork for roughing. Background technique [0002] The sliding fork is an important part of the automobile transmission shaft assembly. It mainly cooperates with the shaft head or the spline shaft fork to form a sliding spline pair to compensate the length change of the transmission shaft assembly and realize torque transmission at the same time. The existing special fixture for the outer circle of the sliding fork roughing car mainly adopts an integral V-shaped block and a centering plate to realize the positioning of the sliding fork. The V-shaped block of this kind of fixture is a non-adjustable integral type. In actual use, due to the variety of sliding forks, the integral V-shaped block and centering plate need to be replaced frequently. After replacement, adjustment and tri...

AI Technical Summary

Problems solved by technology

The V-shaped block of this kind of fixture is a non-adjustable integral type. In actual use, due to the variety of sliding forks, the integral V-shaped block and centering plate need to be replaced frequently. After replacement, adjustment and trial cutting are required, and the accuracy is not easy to guarantee. , sometimes it needs to be replaced and adjusted every shift, which is quite cumbersome and time-consuming

Coupled with the uneven technical level of the operators, the size consistency of the semi-finished products after processing is poor, which makes it difficult to compensate for the subsequent sequence, and the scrap rate is high

Due to the difficulty of assembly, disassembly and maintenance, it often delays the production schedule and leads to increased production costs

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