Automobile rear-wheel cover inner panel drawing die

Abstract

The invention provides an automobile rear-wheel cover inner panel drawing die. The automobile rear-wheel cover inner panel drawing die comprises an upper die seat, a lower die seat and a blank holderassembly, wherein the lower die seat comprises a lower die seat body and a male die fixed on the lower die seat body through screws; the upper die seat comprises an upper die seat body and female dieinsert fixed on the upper die seat body through screws; and the blank holder assembly comprises a black holder seat and a blank holder insert fixedly connected to the blank holder seat through screws.By means of the automobile rear-wheel cover inner panel drawing die, the possibilities such as galling, cracking, hidden cracking, and wrinkling of parts are reduced in the drawing process, so that the rejection rate of the parts is reduced, the stability of the parts production is improved, and at the same time, the normal wear speed of the die is reduced, and the service life of the die is prolonged; a blank holder is formed by splicing inserts, thereby being convenient to repair; and due to the improvement of hardness, possibilities of die galling and normal wear speed are reduced, and thefrequency and cost of maintenance are reduced.

Description

technical field [0001] The invention belongs to the technical field of auto parts production, and relates to a drawing die for an inner plate of an automobile rear wheel house. Background technique [0002] At present, the upper die and upper die of the drawing die for the inner panel parts of the rear wheel house of the automobile all use a double-action press, which requires a high degree of mold manufacturing, and the manufacturing process is complicated, the manufacturing cycle is long, the requirements for the use of equipment are high, and the maintenance is cumbersome. The use of equipment is poor in interchangeability. R corners and other material feeding places are prone to roughening, cracking and dark cracking, and the scrap rate is high. [0003] The upper mold, the lower mold and the blank holder of the existing automobile rear wheel house inner panel drawing die are all integral structures, which makes the mold manufacturing more difficult and the manufacturin...

AI Technical Summary

Problems solved by technology

[0002] At present, the upper die and upper die of the drawing die for the inner panel parts of the rear wheel house of the automobile all use a double-action press, which requires a high degree of mold manufacturing, and the manufacturing process is complicated, the manufacturing cycle is long, the requirements for the use of equipment are high, and the maintenance is cumbersome. Poor equipment interchangeability

R corners and other material feeding places are prone to roughening, cracking and dark cracking, and the scrap rate is high

[0003] The upper mold, the lower mold and the blank holder of the existing automobile rear wheel house inner panel drawing die are all integral structures, which makes the mold manufacturing difficult and the manufacturing cost is high, and the existing automobile rear wheel house inner panel drawing The reliability of the positioning structure of the extended mold is poor, and the accuracy of the mold clamping decreases rapidly after a period of production, and the product quality cannot be guaranteed

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