Slide valve grinding clamp used for disc grinder and clamping method for slide valves

Abstract

The invention discloses a slide valve grinding clamp used for a disc grinder and a clamping method for slide valves. The slide valve grinding clamp comprises a slide valve clamping disc. A plurality of clamping cavities used for clamping the slide valves are arranged on the slide valve clamping disc. The slide valves are arranged in the corresponding clamping cavities and pressed tightly on and fixed to the slide valve clamping disc through a pressing mechanism. The multiple slide valves form an integral structure after being clamped on the slide valve clamping disc. The surfaces to be ground of the multiple slide valves are located on the same horizontal plane. The slide valve grinding clamp clamping the multiple slide valves is arranged on a grinding disc of the disc grinder, the surfaces to be ground of the slide valves are in contact with the grinding disc, and a gap exists between the slide valve clamping disc and the grinding disc. After the slide valves are clamped through the slide valve grinding clamp, the clamp can be effectively prevented from being in contact with the grinding disc, displacement of the slide valves in the self-rotation process of the clamp is eliminated, and meanwhile the grinding efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of grinding equipment, and in particular relates to a sliding valve grinding fixture for a disk grinding machine and a clamping method for the sliding valve. Background technique [0002] The slide valve is a core component of the 120-type freight car air control valve for the main brake machine of railway freight cars at present, and it mainly plays the role of sealing and connecting the air circuit. During the processing, the working surface of the slide valve needs to be ground with a disc grinder. [0003] Such as figure 1 As shown, the process of grinding the slide valve in the existing disc grinder is as follows: the grinder is started, the grinding disc rotates to drive the fixture and the slide valve in the fixture to rotate around its own center of circle, and the slide valve and the grinding disc form a relative rotation, and the grinding The abrasive in the disc begins to micro-cut the working s...

AI Technical Summary

Problems solved by technology

[0004] like figure 2 As shown, the main problems of the existing slide valve grinding fixture are: 1. The clamp 11 and the slide valve 2 are in contact with the grinding disc 4 at the same time, and the grinding disc also grinds the fixture while grinding the slide valve, which increases the loss; 2. There is no clamping between the slide valve 2 and the fixture 11, which is a clearance fit. During the rotation of the fixture, the slide valve will move in the fixture, which is prone to corner drop and affects the grinding quality; 3. The slide valve There is no counterweight, and the pressure required for grinding is only the slide valve’s own weight. Since the slide valve is light, only 0.25kg, the pressure on the grinding disc is small, resulting in low grinding efficiency

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