Special clamp for valve element coating

Abstract

The invention relates to the field of tool clamps, and aims to provide a special clamp for valve element coating. The clamp has the advantages of being good in coating quality and large in batch. According to the technical scheme, the special clamp for valve element coating is characterized in that the clamp comprises a main rotating frame driven by a motor to rotate, a plurality of auxiliary rotating rotating frames arranged around the main rotating frame, a planetary transmission mechanism driving the auxiliary rotating frames to rotate correspondingly and a valve element clamp used for positioning a valve element on the auxiliary rotating frames, wherein the auxiliary rotating frames comprise supporting shafts which can be rotationally positioned in the main rotating frame around vertical axes and a plurality of clamp discs which are fixed on the supporting shafts, clamp fixing pins matched with the valve element clamp are arranged on the top surfaces of the clamp discs, the valve element clamp comprises a base and a top cover, valve element fixing pins matched with the valve element are arranged at the top of the base, and positioning holes used for being arranged on the clampfixing pins in a sleeve manner are formed in the bottom of the base.

Description

technical field [0001] The invention relates to the field of fixtures, in particular to a special fixture for valve core coating. Background technique [0002] With the development of science and technology, or because of the need to increase the mechanical life, or because of the need to improve the surface function of parts, many parts now require vacuum coating on the surface. Metal ion coating (usually using unbalanced magnetron sputtering ion plating equipment for coating). In the process of coating, especially for some slightly complicated parts, it is necessary not only to ensure uniform coating and precise dimensional accuracy, but also to take into account the amount of furnace and control the cost, so good fixtures are essential. [0003] For example, the injector spool ( Figure 8 As shown), the top and bottom of the part do not need to be coated, which requires the upper and lower parts of the part to be covered by tooling, which is difficult to clamp. Therefore...

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Problems solved by technology

[0003] For example, the injector spool ( Figure 8 As shown), the top and bottom of the part do not need to be coated, which requires the upper and lower parts of the part to be covered by tooling, which is difficult to clamp, so it is necessary to design a special coating fixture for the valve core

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