Milling clamp for thin-wall shifting forks

Abstract

The invention relates to the field of mechanical machining, in particular to a milling clamp for thin-wall shifting forks. The milling clamp comprises a clamp body. Two cushion blocks are arranged on the same side of the clamp body. The clamp body is further provided with three straight pins which are a center positioning pin, a limiting pin and a pressure positioning pin correspondingly. The upper end of the pressure positioning pin is provided with a thread and fixedly connected with a pressure board through a nut. The upper end of the center positioning pin is also provided with a thread. The center positioning pin is connected with a nut through a thread. The clamp body is arranged on a machine table. The milling clamp for thin-wall shifting forks is simple in structure, easy to manufacture, convenient to use and high in universality, requirements for the machining dimension of workpieces can be ensured, and the production efficiency and the qualified rate of products are increased.

Description

technical field [0001] The invention relates to the field of machining, in particular to a thin-wall shift fork milling fixture. Background technique [0002] The dial is an important workpiece 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 complex, the size and shape accuracy are high, and the wall thickness of the shift fork head For such thin workpieces, it is difficult to ensure the machining accuracy of the workpiece due to improper process methods or clamping deformation during processing, which will directly affect the gear performance of the gearbox. The processing difficulties of the workpiece mainly include the following aspects: ( 1) The structure of the workpiece is relatively unique and the shape is complex. The structure of the workpiece is relatively complicated. The inner hole, the two sides, the end surface, the groove, the hole, a...

AI Technical Summary

Problems solved by technology

[0002] The dial is an important workpiece 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 complex, the size and shape accuracy are high, and the wall thickness of the shift fork head For such thin workpieces, it is difficult to ensure the machining accuracy of the workpiece due to improper process methods or clamping deformation during processing, which will directly affect the gear performance of the gearbox. The processing difficulties of the workpiece mainly include the following aspects: ( 1) The structure of the workpiece is relatively unique and the shape is complex. The structure of the workpiece is relatively complicated. The inner hole, the two sides, the end surface, 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) Since the workpiece is thin and the clamping method is improper, it is easy to deform

[0003] Grinding with conventional fixtures, the workpiece is prone to deformation, which has a certain impact on the dimensional accuracy of the workpiece, and the product qualification rate is low.

Images