Continuous punching process for vehicle steel plate fittings

Abstract

The invention discloses a continuous punching process for vehicle steel plate fittings. Raw materials are steel strips of strip structures; the steel strips are continuously blanked in a vehicle steelplate fitting continuous punching mold in a stepper mode; the length of each stepper row is the length of each station; two workpieces are prepared at the same time; the flat paving length of the workpieces is larger than the stepper length; and specific station steps comprise positioning hole punching-primary trimming-secondary trimming-primary molding-upper flanging-upper flanging shaping-lowerflanging-lower flanging shaping-punching and primary separation-separation. In the continuous punching process for the vehicle steel plate fittings, through reasonable arrangement of procedures and steps, the overall structure is simple and compact, and meanwhile, the machining precision can be effectively guaranteed.

Description

technical field [0001] The invention relates to the field of stamping processing, in particular to a continuous stamping process for automobile steel plate accessories. Background technique [0002] Stamping die is a kind of process equipment for processing materials into parts in cold stamping processing. Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to a material at room temperature to cause separation or plastic deformation to obtain the required parts. [0003] In each stroke of the press slider, only the same punching process can be completed, which is called a single-process die. The single-process die is divided into: blanking die, punching die and trimming die. [0004] Automobile steel plate parts have complex shapes and structures, especially those with upper and lower flange structures. Usually, the mold structure for producing such workpieces is also very complicated. Usually, single-process molds are used for ...

AI Technical Summary

Problems solved by technology

[0004] The shape and structure of steel plate parts for automobiles are complex, especially those with upper and lower flange structures. Usually, the mold structure for producing such workpieces is also very complicated.

Usually, a single-process mold is used for production. The production of a single-process mold is time-consuming and labor-intensive, and the cost is very high, and the goal of mass production cannot be achieved.

The existing single-process mold has the following problems: (1) multi-process, multi-machine, multi-labor, multi-energy consumption, high production cost; (2) multi-process production mode is difficult to achieve comprehensive management in terms of quality and production management, It is also very difficult in quality control. The previous processes have been produced. If there are quality problems in the subsequent processes, all products and process parts will face the risk of being completely scrapped.

[0005] Therefore, the existing technology also uses continuous stamping dies for continuous blanking processing, but the existing continuous stamping dies either cannot guarantee the preparation accuracy, or make the process complicated in order to ensure the accuracy, and the entire die is very large

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