A processing technology and processing device for micro-cylindrical parts

Abstract

The invention discloses a tiny cylinder part machining process which comprises the following steps of S1, machining a raw material metal plate; S2, machining an upper punch die (1) and a lower die (3), arranging a cylindrical punch die on the upper punch die (1), forming a cylindrical groove (6) and a cylindrical through hole (7) in the lower die (3), and arranging a chamfering conical surface (12) at the bottom of the cylindrical groove (6); S3, punching the raw material metal plate downwards through the upper punch die (1) to make the raw material metal plate form a cylindrical protruding column; S4, lifting the upper punch die (1), moving the raw material metal plate, arranging the cylindrical protruding column into the cylindrical through hole (7), and performing downward punch again through the upper punch die (1) to obtain a finished product. The invention further discloses a tiny cylinder part machining device. By means of the tiny cylinder part machining process and device, forming accuracy is high, machining procedures are simplified, machining cost is reduced, production efficiency is increased, and mesh-shaped raised strips can be machined at the bottom surface of a tiny cylinder part in the punch forming process.

Description

technical field [0001] The invention relates to the technical field of electronic component processing, in particular to a processing technology and a processing device for micro-cylindrical parts. Background technique [0002] Such as figure 1 As shown, a tiny cylinder part 13 is a cylinder with a diameter of 1.5-2.5mm and a length of 2-4mm, and a 45-degree chamfer is provided on the upper end surface. During use, the bottom surface of the part is welded with Other parts are connected. At present, when processing this part, it is obtained from a long cylindrical raw material with the same diameter as the part, which is obtained by first chamfering the end face with a turning tool, and then cutting to a fixed length, and chamfering the end face with a turning tool. The processing method will form a burr on the edge of the chamfered plane, which will affect the processing quality of the part. At the same time, after the fixed-length cutting, a convex post will be left in th...

AI Technical Summary

Problems solved by technology

At present, when processing this part, it is obtained from a long cylindrical raw material with the same diameter as the part, which is obtained by first chamfering the end face with a turning tool, and then cutting to a fixed length, and chamfering the end face with a turning tool. The processing method will form a burr on the edge of the chamfered plane, which will affect the processing quality of the part. At the same time, after the fixed-length cutting, a convex post will be left in the center of the bottom surface, which will also affect the processing quality of the part. As a result, in order to make the processing quality of the part meet the requirements, it is necessary to perform additional operations of grinding the burr and the convex post. Due to the small size of the part, the above-mentioned grinding operation is difficult and inefficient, which increases the processing cost

[0003] It has been found through experiments that setting grid-shaped reliefs on the bottom surface of the tiny main part can effectively improve the welding quality of the part and reduce the difficulty of welding. However, the existing processing technology makes the bottom surface of the part have the above-mentioned convex columns. The operation of setting the grid relief on the bottom surface is still difficult, and there are also problems of high processing difficulty and low processing efficiency

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