Forming and reshaping mold for automobile engine exhaust system manifold

Abstract

The invention provides a forming and shaping die of an automobile engine exhaust system manifold. The forming and shaping die comprise an upper die plate, a lower die plate and a forming module. Upper die support blocks are mounted on the upper die plate. The lower die plate is mounted on a mounting plate through lower die support blocks. The upper die plate is in guide connection through an independent slide guide part. The forming die comprises a forming female die structure and a forming male die structure. The forming female die structure is mounted on the upper die plate. The forming male die structure is mounted on the lower die plate. The forming and shaping die is characterized in that the forming female die structure comprises a forming female die and a pre-pressing block, the forming female die is mounted below the upper die plate through a forming upper base plate, the pre-pressing block is embedded in the forming female die and upwardly penetrates the forming upper base plate, a nitrogen spring is connected to the upper end of the pre-pressing block, and the nitrogen spring vertically penetrates the upper die plate to be connected with the pre-pressing block. The forming and shaping die is capable of effectively increasing arrival rate of one-step stretching forming of workpieces, reducing subsequent shaping procedures and lowering production cost.

Description

technical field [0001] The invention relates to the field of stamping processing of components of an exhaust system of an automobile engine, in particular to a shaping mold for a manifold of the exhaust system of an automobile engine. Background technique [0002] An automobile engine exhaust system manifold, which is formed by stretching the upper half shell and the lower half shell together, then cutting them, and then welding them together, because the upper half shell and the lower half shell are stretched together The forming surface height of forming is high and the forming surface is complex, see figure 1 , the traditional stamping die with integral punch and die structure cannot provide enough pressing force for the workpiece, and at the same time, the rate of one-time stretch forming of the workpiece is low, requiring stretch forming and then multiple shaping treatments; and multiple times Shaping treatment not only needs to be equipped with overpaid molds but also...

AI Technical Summary

Problems solved by technology

[0002] An automobile engine exhaust system manifold, which is formed by stretching the upper half shell and the lower half shell together, then cutting them, and then welding them together, because the upper half shell and the lower half shell are stretched together The forming surface height of forming is high and the forming surface is complex, see figure 1 , the traditional stamping die with integral punch and die structure cannot provide enough pressing force for the workpiece, and at the same time, the rate of one-time stretch forming of the workpiece is low, requiring stretch forming and then multiple shaping treatments; and multiple times Shaping treatment not only needs to configure overpaid molds but also needs to be equipped with multiple punches, so its production cost is high

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