Hump stamping device of hump pipe and stamping method of hump stamping device of hump pipe

Abstract

The invention discloses a hump stamping device of a hump pipe and a stamping method of the hump stamping device of the hump pipe. The stamping device comprises a hump forming assembly and a hump shaping assembly, wherein the hump forming assembly is used for achieving a hump forming technology, and the hump shaping assembly is used for conducting a hump shaping technology on a formed hump. The stamping method comprises the steps of blanking, circle rolling, welding, grinding and polishing, hump forming, and hump shaping. According to the stamping method, processing and manufacturing are conducted by means of a hardware stamping mould, so that the stamping speed and efficiency are greatly improved, and a product can be produced in 30 seconds; according to the technology (hump stamping device of the hump pipe and the stamping method of the hump stamping device of the hump pipe), due to inner and outer anti-deformation shaping and whole surface contact, the product profile tolerance and the product roundness can be guaranteed; and according to the technology (hump stamping device of the hump pipe and the stamping method of the hump stamping device of the hump pipe), one-time forming can be achieved, so that a product thinning rate is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of stamping equipment for automobile exhaust hump pipes, in particular to a hump stamping device for hump pipes and a stamping method thereof. Background technique [0002] The automobile exhaust system mainly discharges the exhaust gas from the engine, and at the same time reduces the pollution of the exhaust gas and reduces the noise. Hump ​​pipes are usually used in the exhaust process of automobiles. [0003] However, in the existing process, the hump forming is formed by rolling, and the rolling forming material is not protected, and it is completely formed in natural deformation; the existing process has slow production speed and low efficiency, and produces a product in 2 minutes; Press forming is point contact repeated rolling, the thinning is about 30%, and the roundness and contour are unstable; high thinning rate leads to poor product strength. [0004] Therefore, it is of great significance to ...

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Problems solved by technology

[0005] The object of the present invention is to provide a hump stamping device and a stamping method for a hump tube, so as to solve the problem that in the existing technology, the hump is formed by rolling, and the rolling forming material is not protected, and it is completely in the natural deformation forming ; The existing process has slow production speed and low efficiency, and produces a product in 2 minutes; roll forming is point contact and repeated rolling, and the thinning is about 30%, and the roundness and contour are unstable; the thinning rate High leads to problems with poor product strength

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