Clamping method for shaft parts and holding device

Abstract

A clamping method for shaft parts and a holding device belong to the technical field of grinding shafts. A conventional clamp has the disadvantages of smaller application range, complicated structure, higher cost, low positioning accuracy and low working efficiency. In the clamping method provided by the invention, radial positioning and centering of a workpiece can be achieved by adjusting the number and the heights of small cushion blocks, and the workpiece can be clamped and positioned in the axial direction and the radial direction by adjusting the length of screw threads of an adjusting bolt; the holding device of the invention also comprises a clamp seat, a big clamp block, a small clamp block, adjusting cushion blocks, center blocks and the like; the clamp seat is directly installed on a guide rail of a grinding machine; the two center blocks are arranged symmetrically and installed on two V-shaped surfaces of the big clamp block through the small cushion blocks; in addition, the big clamp block and the small clamp block are provided with V-shaped opening respectively, and are symmetrically arranged in the opposite directions. The clamping method and the holding device of the invention have the advantages of high positioning accuracy, simple operation, wide application range, low cost, high operating efficiency and the like, and the positioning accuracy can reach 0.001mm.

Description

technical field [0001] The invention belongs to the technical field of shaft grinding, and in particular relates to a grinding machine fixture. Background technique [0002] In modern shaft grinding technology, there are many types of fixtures for clamping. When replacing different types of parts, it is often necessary to replace the corresponding special fixtures. The structure of various fixtures is complex and the cost is high. The shock resistance of various fixtures is not good. The positioning accuracy after installation is low. When the workpiece is long, it is necessary to install the center frame and fixture at the same time. The clamping and centering of the workpiece are complicated when installing the workpiece, and the center of the workpiece needs to be re-aligned after each clamping, and the work efficiency is low. Contents of the invention [0003] The purpose of the present invention is to overcome various shortcomings of the existing fixtures, and provide...

AI Technical Summary

Problems solved by technology

[0002] In modern shaft grinding technology, there are many types of fixtures for clamping. When replacing different types of parts, it is often necessary to replace the corresponding special fixtures. The structure of various fixtures is complex and the cost is high. The shock resistance of various fixtures is not good. The positioning accuracy after installation is low. When the workpiece is long, it is necessary to install the center frame and fixture at the same time. The clamping and centering of the workpiece are complicated when installing the workpiece, and the center of the workpiece needs to be re-aligned after each clamping, and the work efficiency is low.

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