Machining method ensuring precision of stamping parts
A processing method and technology of stamping parts, applied in the field of stamping processing, can solve the problems of product parts not meeting the accuracy requirements, and achieve the effect of reducing deformation and ensuring accuracy
Active Publication Date: 2012-06-06
孙昌清
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a method for improving the stamping processing technology for the stamping parts obtained by the above-mentioned stamping process in the prior art. A processing method that uniformly deforms parts after heat treatment and ensures the precision of stamping parts
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[0035] The deformation process in the conventional stamping process is usually the volume forming of the stamping strip, and the separation process is divided into three types, one is punching, the other is blanking, and the combination of punching and blanking.
[0036] For pie-shaped parts, that is, parts that have no through holes along the thickness direction and only have outer edge contours, the parts can be obtained by punching out the same outer edge as the part from the stamping strip, and the blanking process is generally used.
[0037] For ring parts, that is, parts with through holes along the thickness direction of the plate, thus having both outer edges and inner edges of the through holes, the inner and outer edges need to be cut out on the stamped strip at the same time, so punching and blanking are usually used. Composite process.
[0038] The previous process has already cut out the outer edge contour of the ring part from the stamping strip. In this stamping...
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Abstract
The invention relates to a machining method ensuring precision of stamping parts. The method comprises the following steps of S0 preparing stamping strip materials (2) and a stamping device for stamping the stamping strip materials (2); S1, stamping the stamping strip materials (2) with the stamping device, cutting the stamping strip materials (2) into stamping parts (4) with equivalent shapes and sizes with the required product parts and process excessive materials (3) as waste materials, wherein the edges of the stamping parts (4) are connected with the process excessive materials (3) through annular rigid rings (5) instead of cutting off; S2, carrying out heat treating on the connected stamping parts (4) and the process excessive materials (3) through the rigid rings (5); and S3, excising the annular rigid rings (5) to separate the stamping parts (4) with the process excessive materials (3). Before the heat treatment, the stamping parts are not cut off with the process excessive materials but are connected with the process excessive materials through the rigid rings, so that in the heat treatment process, the deformation of the stamping parts is limited, the deformation is reduced, and the precision of the final product parts is effectively ensured.
Description
technical field [0001] The invention relates to a stamping processing method, more specifically, to a processing method for ensuring the precision of stamping parts. Background technique [0002] Stamping is a commonly used processing technology in the processing of metal sheets, relying on punches (or presses) and molds to exert external force on the sheet-like strips to cause plastic deformation or separation of the strips, thereby obtaining stamped parts of the required shape and size . Stamping includes two kinds of deformation process and separation process. The separation process is also called blanking. Its purpose is to separate the stamped parts from the strip along a certain contour line, while ensuring the quality requirements of the separation section; the purpose of the forming process is to make the strip in the Plastic deformation occurs without breaking the blank, and blanks of the required shape and size are made, and the blanks are processed into stamping ...
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IPC IPC(8): B21D28/02
Inventor 孙昌清
Owner 孙昌清