Method and device for automatically riveting static reed and contact of contactor

Abstract

The invention discloses a method for automatically riveting a static reed and a contact of a contactor. The method comprises the steps of 1) sending the contact into a riveting cavity inside a riveting die in such a way that a handle head is located on the lower side; 2) sending the static reed into the riveting die, and sleeving a riveting hole on the static reed on a riveting stud of the contact; 3) exerting a first pressing force on the static reed, pre-pressing the static reed on a nail head of the contact; 4) exerting a second pressing force on the contact to rivet the riveting stud into a riveting head; and 5) discharging. According to the method, air cylinder riveting is adopted, and simultaneously, a cylinder body is moved to conduct pre-pressing, material hooping and material separating, so that the riveting firmness of the contact is high, and the consistency is good.

Description

technical field [0001] The invention relates to the technical field of contactor preparation, in particular to a method and device for automatic riveting of static reeds and contacts of a contactor. Background technique [0002] The contactor is an electrical appliance used to frequently switch on and off the AC and DC main circuits and large-capacity control circuits over a long distance. Its main control object is the motor, and it can also be used to control other electric loads such as electric heaters, lighting lamps, electric welding machines, capacitor banks, etc. [0003] The electrical contact system of contactor products is mainly composed of current-guiding copper sheets (static reeds, bridging sheets) and contacts. The quality of contact riveting directly affects the life of contactor products. Generally speaking, the firmer the contact riveting is, the longer the life of the product will be. [0004] Most of the existing traditional contact riveting methods us...

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Problems solved by technology

[0004] Most of the existing traditional contact riveting methods use electric punching machines for manual riveting. Once the punching machine is debugged, the movement stroke is fixed, which leads to the fastness of contact riveting greatly affected by the size and tolerance of the parts, and the consistency is not good

In addition, in terms of efficiency, manual riveting of electric punching machines has the problem of low efficiency

[0005] Although some manufacturers have used automatic riveting equipment for contact riveting, but in the riveting process, the static reed is not pre-pressed on the handle of the contact first, but directly riveted. This riveting method is still It will cause the static reed to shake between the contact riveting head and the crown, resulting in poor contact

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