Punch-riveting system applicable to manufacture of automobile parts and components, and operation method for same

Abstract

The invention relates to the technical field of automobile manufacture and specifically relates to a punch-riveting system applicable to manufacture of automobile parts and components, and an operation method for the same. The punch-riveting system applicable to the manufacture of the automobile parts and components comprises a rack, wherein a press machine which can connect nuts with punching parts in a punching manner is disposed on the rack; the rack adopts a cuboid frame structure; all edges of the cuboid frame are made of steel; protective covers are disposed outside the frame structure; and the protective covers cover the back face, the top face, the bottom face, the left side face and the right side face of the rack. By the technical scheme, the system and the method provided by the invention have the advantages that operations are simple and convenient; positioning is accurate; risks in that the punching parts are punctured by the nuts during punching can be effectively avoided by the operation manner, and the production rejection rate and quality cost can be reduced; and changes of internal mechanical performance of the parts and components caused by thermal effects in traditional welding can be eliminated, and dynamic performance can be enhanced.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a punching riveting system suitable for the manufacture of automobile parts and an operation method thereof. Background technique [0002] In the automobile manufacturing industry, many automobile components are used to form an integrated structure by combining nuts and stamping parts through heat treatment. The traditional manufacturing process abandons the relatively backward spot welding process, and generally uses projection welding. Projection welding is essentially an upgraded and deformed spot welding method. Its working principle is to pre-process one or more bumps on the joint surface of the weldment, make it contact with the surface of another weldment, pressurize, and heat it with electricity. After the bumps are crushed, these contact points form Resistance welding method for solder joints. It can replace spot welding to weld small parts to each ot...

AI Technical Summary

Problems solved by technology

However, projection welding has the following disadvantages: 1. Additional processes are required to prefabricate one or more bumps; 2. When welding multiple solder joints with the same electrode at the same time, the alignment of the workpiece and the size of the bumps must maintain high-precision tolerances , to ensure uniform electrode force and welding current, so that the quality of each solder joint can be uniform; 3. To weld multiple solder joints at the same time, it is necessary to use a high-power welding machine with high electrode pressure and high mechanical precision. High followability; 4. Due to the hot-press welding technology, it is inevitable that there will be problems that the surface of the weldment and the local mechanical structure will be affected due to high temperature, and even deformation will occur.

However, this method of stamping to manufacture engine hood support components has the following disadvantages: 1. The nut used as a die is easy to punch through the stamping parts, resulting in failure to assemble and resulting in defective products, which affects the overall production efficiency; 2. There are mechanical problems in the formed components Poor performance, unable to meet the functional requirements of the overall product, and there is a potential safety hazard of component disintegration during the use of the overall product

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