A batch testing method for production and processing of low-voltage circuit breakers

Abstract

The invention relates to a batch testing method for production and processing of low-voltage circuit breakers, in particular to a batch testing device for production and processing of low-voltage circuit breakers. The device specifically comprises a base, a belt conveyor, a test frame, two clamping mechanisms, a reciprocating mechanism, a lifting mechanism, a fine adjustment mechanism and a handlepoking mechanism; the two clamping mechanisms are fixedly installed on the two sides of the test frame in a mirror image mode; the reciprocating motion mechanism is arranged at the top of the test frame; the reciprocating mechanism comprises a moving plate capable of horizontally reciprocating along the top of the test frame; the lifting mechanism is arranged on the moving plate; the fine adjustment mechanism is arranged on the lifting mechanism; the fine adjustment mechanism comprises a hinge frame capable of horizontally and transversely moving, and the handle stirring mechanism is hinged to the hinge frame. The method can achieve batch and automatic testing of the low-voltage circuit breaker, and the production efficiency of the test link and the production efficiency of the whole circuit breaker production process are greatly improved.

Description

technical field [0001] The invention relates to the technical field of circuit breaker production and manufacturing, and specifically proposes a batch testing method for production and processing of low-voltage circuit breakers. Background technique [0002] A low-voltage circuit breaker is a switching device that can not only switch on and off normal load current and overload current, but also switch on and off short-circuit current. In addition to the control function in the circuit, the low-voltage circuit breaker also has certain protection functions, such as overload, short circuit, undervoltage and leakage protection. Low-voltage circuit breakers are widely used in feeder lines at all levels of low-voltage power distribution systems, power control of various mechanical equipment, and control and protection of power terminals. [0003] A low-voltage circuit breaker is mainly composed of a contact system, an arc extinguishing system, an operating mechanism, a release un...

AI Technical Summary

Problems solved by technology

[0004] At present, the rotating shaft of the molded case circuit breaker is usually pressed with non-metallic material. Compared with the metal rotating shaft, the rotating shaft of this non-metallic material is prone to individual shaft cracking. If the situation is mild, it will cause the switch to lose phase and damage the load equipment, and if it is serious, the equipment will be burned.

In order to prevent the occurrence of the above situation, after the assembly and production of low-voltage molded case circuit breakers, the fatigue test of the rotating shaft is usually carried out to test whether there are quality problems in the low-voltage molded case circuit breakers produced and assembled in the same batch. When carrying out the fatigue test of the rotating shaft, the test personnel pull the rotating handle on the rotating shaft by hand, and in the process of detection and testing, if there is a stuck rotation and reset, it can be directly determined that there is a quality problem, but in addition, it is necessary to Carry out a certain number of rotation tests on each circuit breaker. This test method obviously has low efficiency, long-term operation is labor-intensive, and it is easy to cause problems such as joint strain of the tester.

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