Multi-station progressive die for trunk tail gate reinforcing plate and processing technology

Abstract

The invention discloses a multi-station progressive die for a trunk tail gate reinforcing plate. The multi-station progressive die comprises two parts, namely an upper die and a lower die, wherein the upper die comprises a terrace die, a terrace die fixing plate, a terrace die base plate, a stripper plate, an upper die holder and the like; and the lower die mainly comprises a concave die, a concave die fixing plate, a lower base plate, a lower die holder and the like. The invention discloses a processing technology of the multi-station progressive die for the trunk tail gate reinforcing plate. The die positioning, floating, unloading and discharging conditions are good, the manufacturing manufacturability is good, the multi-station progressive die can meet the requirements of high-speed precision production through die debugging and formal production; the production efficiency is improved; the production cost is reduced; the accuracy requirement of a product is ensured; and the benefit is obvious by adopting a progressive die form for complicated parts requiring deep drawing.

Description

technical field [0001] The invention relates to the technical field of stamping processing, in particular to a multi-station progressive die for a reinforcement plate of a trunk tailgate. Background technique [0002] The invention relates to stamping processing of automobile parts. figure 1 It is the product picture of the reinforcement plate for the tailgate of the car trunk. The thickness of the plate is 1.2 mm. The material is cold-rolled steel B170P1. It is a high-strength steel with phosphorus added, which has good stamping performance, is beneficial to component thinning, and has anti-sag performance , the yield strength is 170-260 MPa, and the tensile strength is not less than 340 MPa. [0003] The overall size of the product is about 307 mm × 94 mm × 24 mm, and the shape is symmetrical. In addition to a large hole in the middle part, there are two round holes of ф8+0.10 mm and two long waist holes of 32 mm × 20 mm. The product has high precision requirements, the ...

AI Technical Summary

Problems solved by technology

However, only ordinary stamping dies, such as single-process dies or compound dies, need to be completed in multiple processes. After stamping is formed in different dies for many times, the surface quality of the workpiece is not high, the operability is average, and the production efficiency is low, which is difficult to meet. In order to meet the demand of mass production, it is necessary to provide a multi-station progressive mold for the tailgate reinforcement plate of the car trunk to overcome the above defects

[0005] According to the current traditional stamping process plan, the parts of the tailgate reinforcement plate of the trunk adopt the form of a single-moving mold and are produced on the artificial line. The first possible situation is to blank the material first, then directly form it, and finally punch the hole to obtain the curved surface of the part. Uneven, and the surrounding outline does not meet the requirements, and the product quality is average; the second possible situation is that the material is cut first, followed by deep drawing, trimming, punching, flanging, and punching, and it is produced on 4 punching machines, and the product quality is better than before. One is good but has potential for wrinkling etc.

[0006] The above scheme is produced by manual line blanking and stamping, which takes up a lot of machine tools and requires multiple people to operate. The production efficiency is not high and the product quality is unstable. These do not meet the requirements of batch and efficient production.

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