A Flanging Forming Process for a Filter Cover Plate

Abstract

The invention relates to the technical field of filter cover plate production, in particular to a filter cover plate flanging forming process, including an operating table; the middle part of the top surface of the operating table is excavated to form a flange for the filter cover plate after stamping The position of the top surface of the operating table corresponding to the forming groove is provided with a limit frame with one end open; a stamping mechanism is provided above the forming groove, and an inflatable ejection mechanism is provided at the bottom of the forming groove; the inflatable ejection mechanism is set at the operating In the chamber provided in the table, the inflatable ejector mechanism is driven by the drive mechanism provided in the chamber; the present invention drives the inflatable ejector mechanism through the drive mechanism to eject the filter cover plate after flanging processing, and During the ejection process, the negative pressure between the filter cover plate and the forming groove is eliminated, which facilitates the filter cover plate to be ejected intact, avoids damage to the filter cover plate during ejection, and improves the processing quality.

Description

technical field [0001] The invention relates to the technical field of filter cover plate production, in particular to a filter cover plate flanging forming process. Background technique [0002] A filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter the frequency point of a specific frequency in the power line or frequencies other than this frequency point to obtain a power signal of a specific frequency or eliminate a power signal of a specific frequency. The filter cover is one of the main components of the filter, so the demand for the filter cover is gradually increasing. During the manufacturing process of the filter cover plate, screw mounting holes are generally processed out of the aluminum plate, mainly through the process of punching and flanging. Most of the existing flanging devices are relatively complicated, inconvenient to operate, and cannot firmly fix the aluminum plate during flanging, which affect...

AI Technical Summary

Problems solved by technology

Most of the existing flanging devices are relatively complicated, inconvenient to operate, and cannot firmly fix the aluminum plate during flanging, which affects the smooth progress of punching and flanging, and even leads to defective products, resulting in defective products.

[0003] At the same time, in the prior art, for a push-out stamping die, when a thin plate such as a filter cover plate is pressed into the forming groove for flanging, the flanging of the thin plate will be in close contact with the inner wall of the forming groove , and as the thin plate is gradually pressed into the forming groove, the thin plate pressed into the forming groove and the surface of the forming groove will form a similar negative pressure state. At this time, when the ejector pin is used to eject the thin plate, the ejector pin needs to overcome It is easy to cause the friction between the thin sheet material and the side wall of the forming groove, as well as the negative pressure between the thin sheet material and the forming groove, and it is easy to leave a depression on the surface of the thin sheet material; and considering the stamping strength of the mold, stamping It is not suitable to open more vent holes for ventilation on the mold, that is, it is impossible to open vent holes to the outside world at the bottom of the forming tank; for this reason, a filter cover flanging forming process is proposed

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