Automobile tail door inner plate forming technology

Abstract

The invention discloses a forming process for an inner panel of an automobile tailgate, which comprises the following steps: 1. determining that the drawing die surface is V-shaped with the opening facing upward; Die parting line and window hole parting line; 3. Blanking, forming the outer contour and window hole contour to obtain the semi-finished product of the tailgate inner panel; 4. According to the upper parting line, the lower parting line and the window hole The position of the parting line, the semi-finished product is placed on the drawing die for drawing forming, and the drawing die adopts a drawing die with a binder ring binder core and a window hole binder core. The invention can solve the forming quality problems such as easy wrinkling and cracking, insufficient internal forming, poor rigidity and other forming quality problems caused by drawing forming of the inner panel of the automobile tailgate, as well as the quality problems caused by the piercing knife process, long manufacturing time and heavy workload And other issues.

Description

technical field [0001] The invention relates to a forming process, in particular to a forming process for an inner panel of an automobile tailgate. Background technique [0002] At present, the inner panel of the tailgate of the automobile is mainly formed by drawing process, specifically by punch forming. bezel stroke), and then place the blank on the bezel; the upper die moves down together with the bed and then cooperates with the bezel to compress the blank; then, the upper die and the bezel continue to move downward together, and the punch Stretch into the inside of the blank holder to start forming, until the mold reaches the closed state, and the drawing forming ends. During the drawing forming process, when the upper die and the blank holder are pressed together, the blank is mainly locked by the drawbead on the blankholder, so as to realize the control of the flow rate of the circle during forming; by changing the shape of the drawbead and The size can achieve the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a forming process for the inner panel of the automobile tailgate to solve the deficiencies in the prior art. It can solve the problems of easy wrinkling and cracking of the inner panel of the automobile tailgate, insufficient internal forming, poor rigidity, etc. Forming quality problems, as well as quality problems caused by the use of piercing knife technology, long manufacturing time and heavy workload, etc.

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