Tubular beam pneumatic molding die

Abstract

The invention discloses a tubular beam pneumatic molding die. A tapered wedge is arranged in each cavity of a die holder, and mandrels are arranged at the opposite ends of the two tapered wedges. The mandrels are fixedly connected with the corresponding tapered wedges, and the mandrels can stretch into a forming groove. A convex hull is integrally formed on the top face of the mandrel on the left side. The left end and the right end of the die holder are each provided with a set of connecting plates which are in a long rectangular strip shape. A front row of limiting blocks and a rear row of limiting blocks are arranged in the middle of the top face of the die holder, and the limiting blocks are big-end-down two-section type hollow short columns. Guide grooves are symmetrically formed in the front side and the rear side of the left end of the die holder, guide grooves are symmetrically formed in the front side and the rear side of the right end of the die holder, and the four guide grooves are distributed in a rectangular mode. Wear-resisting plates are attached to the three inner walls of each guide groove, and are steel plates. The tubular beam pneumatic molding die is easy to apply, and operation of torsion beam molding is simple; the left-right direction of molded torsion beams can be identified easily, and the torsion beams cannot be reversely arranged in subsequent processes.

Description

technical field [0001] The invention belongs to the technical field of molds, and in particular relates to a pneumatic forming mold for tubular beams. Background technique [0002] The torsion beam is an important part of the car. Its main function is to balance the up and down jump of the left and right wheels, so as to reduce the shaking of the vehicle and keep the vehicle stable. The V-shaped torsion beam is stamped from a round tube-shaped blank. The stamping process is to form two V-shaped surfaces inside and outside at one time, and then expand the port shape twice. Chinese patent ZL201410142309.4 disclosed a car tubular V-shaped torsion beam stamping process on July 30, 2014, and specifically disclosed the forming die and the expansion die. The operation is cumbersome, the production efficiency is low, and the formed product is a left-right symmetrical piece. It is difficult to distinguish the left-right direction in the subsequent laser cutting process, and it is ea...

AI Technical Summary

Problems solved by technology

Chinese patent ZL201410142309.4 disclosed a car tubular V-shaped torsion beam stamping process on July 30, 2014, and specifically disclosed the forming die and the expansion die. The operation is cumbersome, the production efficiency is low, and the formed product is a left-right symmetrical piece. It is difficult to distinguish the left-right direction in the subsequent laser cutting process, and it is easy to reverse the parts. It is difficult to distinguish the left-right direction and the positioning of the parts is time-consuming and laborious. Greatly reduced cutting efficiency

In addition, when the processed torsion beam is welded with other parts, it is also necessary to manually distinguish the left and right directions to confirm the position of the weld seam, which not only increases the labor intensity of the workers, but also reduces the welding efficiency

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