Commutator segment continuous punching mechanism with automatic identification and processing of short and residual segments

Abstract

The invention discloses a commutator bar continuous blanking mechanism with an automatic short bar and broken bar recognition processing function. The commutator bar continuous blanking mechanism comprises a blanking mold and a step feeding component, wherein the blanking mold consists of an upper mold and a lower mold, the lower mold is in fixed arrangement, the upper mold is arranged in a way capable of vertically moving relative to the lower mold and is pushed by a power head of a punching machine, the upper mold comprises a punch group and an upper template arranged on the punch group, and the punch group comprises first punches corresponding to a specific blanking position of a commutator bar. The commutator bar continuous blanking mechanism is characterized in that a plurality of first punches are arranged at the front side and the back side along the feeding direction, each first punch consists of A type first punches and B type first punches, the A type first punches are near the front part and are fixedly arranged at the bottom of the upper template, the B type first punches are near the back part and are movably arranged at the bottom of the upper template, the upper template is provided with a slide hole , a movable core is arranged in the slide hole, the side wall of the slide hole is provided with a proximity switch for detecting the vertical movement of the movable core, and the B type punches are connected onto the movable core. The commutator bar continuous blanking mechanism can solve the problem of automatic short bar and broken bar recognition processing of a commutator bar in the continuous blanking process, so that the quality guarantee is provided for the assembled commutator bar product.

Description

technical field [0001] The invention relates to the technical field of commutator manufacture, in particular to a commutator segment continuous punching mechanism with functions of automatic identification and processing of short segment fragments. Background technique [0002] The commutator is widely used in power tools. The key part of the commutator is the commutator segment. The most common forming method of the commutator segment is to punch a copper strip and then form it. In order to improve the punching efficiency of the commutator segment, many manufacturers have adopted continuous punching mechanism to automatically produce the commutator segment. The multi-punch design of the mold and uninterrupted continuous punching can realize the continuous punching or automatic production of the commutator piece, which greatly improves the production efficiency and reduces the labor intensity of workers. However, in the above-mentioned working process, due to the insufficie...

AI Technical Summary

Problems solved by technology

However, in the above-mentioned working process, due to the insufficient feeding length of the copper strip, the length of the punched commutator segment is deviated, resulting in short pieces or fragments, and the unqualified commutator pieces of these short pieces or fragments will be mixed. It is not easy to identify in the qualified commutator slices, even when the commutator slices are arranged, it will not be easily found. Only when the commutator is finished for product inspection or testing, will it be discovered because of unqualified testing, but Due to the possibility of missing or not being found in some inspections, if an unqualified commutator is sent to the customer, it will cause quality hazards and complaints, and there is a risk, which has greatly wasted manpower and material resources.

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