Thin-walled shifting fork turning clamp

Abstract

The invention discloses a thin-walled shifting fork turning clamp, relates to the field of machining and in particular relates to the thin-walled shifting fork turning clamp which comprises a clamp main body, wherein the clamp main body is a cylindrical truncated cone; a plurality of stop dogs are arranged on one end surface of the clamp main body; two stop dogs are arranged on the clamp main body in parallel; each stop dog is connected with a bolt through a threaded hole; two cylindrical pins are also arranged on the clamp main body and are a center positioning pin and a limiting pin respectively; the center positioning pin and the stop dogs which are arranged in parallel with the center positioning pin are arranged on the circumference of a same circle; the center of the circle is coincided with the center of circle of the end surface of the clamp main body; threads are formed in the top end of the center positioning pin; and the top end of the center positioning pin is connected with a nut. The thin-walled shifting fork turning clamp has a simple structure, is convenient in operation, can well ensure the size, form and position accuracy when a workpiece is processed and improves the production efficiency.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a thin-wall fork turning fixture. Background technique [0002] The dial is an important part to realize the gear shifting of the gearbox. Due to its special shape, it is difficult to clamp and correct, and it is difficult to process, especially the shape is relatively complicated, the size and shape accuracy are high, and the wall thickness of the shift fork head It is difficult to guarantee the processing accuracy of such thin parts due to improper process methods or clamping deformation during processing, which will directly affect the gear performance of the gearbox. The main difficulties in processing the parts are as follows: ( 1) The structure of the part is relatively unique and the shape is complex. The structure of the part is relatively complicated. The inner hole, the two sides, the end face, the groove, the hole, and the two fork heads are processed and clamped, ...

AI Technical Summary

Problems solved by technology

[0002] The dial is an important part to realize the gear shifting of the gearbox. Due to its special shape, it is difficult to clamp and correct, and it is difficult to process, especially the shape is relatively complicated, the size and shape accuracy are high, and the wall thickness of the shift fork head It is difficult to guarantee the processing accuracy of such thin parts due to improper process methods or clamping deformation during processing, which will directly affect the gear performance of the gearbox. The main difficulties in processing the parts are as follows: ( 1) The structure of the part is relatively unique and the shape is complex. The structure of the part is relatively complicated. The inner hole, the two sides, the end face, the groove, the hole, and the two fork heads are processed and clamped, and it is difficult to correct. Secondly, the holes on the workpiece The requirements for dimensional accuracy and shape and position accuracy are relatively high, and the processing process is difficult to guarantee

(2) Due to the thinness of the parts and the improper clamping method, deformation is easy to occur. When processing the two sides, the traditional method is to use the pressure plate to press the parts that are not processed on the surface to fasten the parts. Although this method can make the parts It is fastened on the fixture, but because the size of the pressed part of the part is relatively thin, it is easy to cause elastic deformation of the part by this kind of pressing method. After the surface is turned, once the clamp is released, the elastic deformation will recover, so there is no guarantee Dimensional accuracy and shape accuracy of both sides 2

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