A kind of finishing equipment for insulating casing of molded case circuit breaker

Abstract

The invention relates to a finishing equipment for the insulating shell of a molded case circuit breaker, which includes a base, a clamping unit and a grinding unit. The left and right sides of the inner wall at the lower end of the base are symmetrically provided with clamping units, and the middle part of the inner wall at the lower end of the base is provided with a grinding unit. unit; the present invention sets an adjustable placement post for the structure of the mounting hole at the outer end of the insulating case, and fixes the insulating case by adjusting the position of the placement post and the design of the opening and closing post, and limits all degrees of freedom of the insulating case; the present invention Through the adjustable grinding device, the belt paste and the inner wall of the inner groove of the insulating shell can be polished to finish the inner wall of the inner groove of the insulating shell and the four dead corners, which solves the problem of burrs and raised interference buttons in injection molding.

Description

technical field [0001] The invention relates to the technical field of circuit parts production, in particular to a finishing equipment for the insulation shell of a molded case circuit breaker. Background technique [0002] A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. [0003] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a ...

AI Technical Summary

Problems solved by technology

[0004] The following problems exist in the current circuit breaker production: 1. The insulating shell needs to be slotted to match the opening and closing of the button. Since the insulating shell of the circuit breaker is injection molded, there may be burrs and protrusions and other sundries, making it difficult to press the button or even impossible. Power off; 2. The inner groove of the insulating shell is square, and the existing equipment cannot effectively finish the four corners of the square; 3. The insulating shell is formed by injection molding, so that the size of the insulating shell may be slightly different. Deviation, resulting in the insulative shell can not be clamped by the perfect fit jig, but the unfit jig will lead to the insulative shell can not be completely locked, resulting in excessive grinding or poor grinding effect and other problems

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