Automatic clamping and locating device for thread take-up crank

Abstract

The invention discloses an automatic clamping and locating device for a thread take-up crank. The automatic clamping and locating device comprises a clamp main body and a clamping claw, wherein the clamping claw is of a wire cutter structure, and is arranged on the outer side of the end of the clamp main body; a workpiece is arranged in the middle of the clamp main body, and a short shaft end is arranged on the side, close to the clamping claw, of the workpiece; the opening side of the clamping claw is connected with the two sides of the exterior of the short shaft end in a clamped mode; and an adjusting air cylinder used for supporting the clamping claw to clamp the short shaft end is arranged on the side, away from the clamp body, of the clamping claw. The automatic clamping and locating device has the beneficial effects that an ejection column coinciding with the axis of a main shaft of a grinding machine is arranged on the outer side of the clamp main body, and the clamping claw for locking the short shaft end of the exterior of the workpiece is arranged on the outer side of the ejection column; auxiliary location is conducted on the short shaft end through the clamping claw, and the locating difficulty of the short shaft end is reduced; the labor amount of workers is reduced, and the machining efficiency is improved; and the practicability is high.

Description

technical field [0001] The invention relates to the field of workpiece processing equipment, in particular to an automatic clamping and positioning device for a thread take-up crank. Background technique [0002] In the sewing machine industry, the amount of thread take-up lever components is large. To ensure its wear resistance, the outer diameter of the small thread take-up crank assembly needs to be electroplated with hard chrome. After electroplating, it needs to be finished and ground. In order to ensure the uniformity of the electroplating layer, each The single product needs to be round, the processing efficiency is very low, and the production cycle is long, which has become an important part of the production capacity. Because it must ensure that the thickness of the electroplating layer of the finished product is 0.03mm ~ 0.05mm, the outer diameter is ground to be smaller than the finished product before electroplating. The size is 0.2mm smaller, and then it is ele...

AI Technical Summary

Problems solved by technology

This requires a high level of technical skills for the operator. If the technique is good, it will be corrected quickly. If the technique is not good, it will need to be repeated many times before it can be corrected, resulting in low efficiency.

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