A terminal part structure of a micro switch and a processing method thereof

Abstract

The invention discloses a terminal part structure for a microswitch, and a processing method for the terminal part structure. A pedestal achieves the injection molding fixing with an upper terminal, alower terminal and the central part of a common terminal through integrated injection molding. An upper pin, a lower pin, a support part and a common pin are located on the same central horizontal plane, and an upper contact pat and the upper pin are bent to form an inclined angle of 90 degrees at an upper folding line. The lower contact part, the lower pin and the support part are bent to form an inclined angle of 90 degrees at a lower folding line. In addition, the invention also discloses a processing method for the terminal part structure, and the method comprises the steps: carrying outthe hardware stamping, bending the top of the common terminal through stamping and flanging, and carrying out the dividing at the center; enabling the top of the lower terminal to be bent by 90 degrees through stamping and tearing, enabling the top of the upper terminal to be bent by 90 degrees through hardware stamping, carrying out the injection moulding, and carrying out the blanking. Comparedwith a conventional structure and the prior art, the structure enables the central part of the pins not to be bent, completes the bending of the contact part before injection moulding, is easy to process and form, and is better in stability of injection moulding. Meanwhile, a connecting rib is disposed between a sample plate and an external frame in a machining process, and the forming efficiencyand stability are greatly improved.

Description

technical field [0001] The invention relates to the field of micro switches, in particular to a terminal part structure of a micro switch and a processing method thereof. Background technique [0002] The micro switch is a contact mechanism with a small contact interval and a quick action mechanism, which performs a switching action with a specified stroke and a specified force. It is covered with a casing and has a drive rod on the outside. Small, hence the name micro switch, also called sensitive switch. [0003] The external mechanical force acts on the moving shrapnel through the transmission elements (press pins, buttons, levers, rollers, etc.). on or off. When the force on the transmission element is removed, the moving shrapnel produces a reverse action force. When the reverse stroke of the transmission element reaches the critical point of the action of the moving shrapnel, the reverse action is completed instantaneously. The contact spacing of the micro switch is...

AI Technical Summary

Problems solved by technology

Since the middle part of the upper terminal and the lower terminal needs to be bent obliquely, one step of operation will be added during processing, which reduces the production efficiency; at the same time, the middle part is bent and then injected. Since the upper part of the upper terminal and the lower terminal have no fixed structure, the terminal is prone to misalignment during the injection molding process. The stability of injection molding is poor; and the two bending operations are not completed at the same stage, which reduces production efficiency

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