Cutting mold for heat shield of automobile exhaust system

Abstract

The invention discloses a trimming die for a thermal shield of an automobile exhaust system. The trimming die for the thermal shield of the automobile exhaust system is capable of solving the problems of easiness in wrinkling and cracking when a traditional integrally modular trimming die cuts off waste edges of four sides of a workpiece. The trimming die for the thermal shield of the automobile exhaust system comprises an upper die structure and a lower die structure, the upper die structure and lower die structure are closed by the guide of a rolling guide mechanism, the upper die structure comprises an upper template, an upper fixing plate is arranged on the bottom of the upper template through an upper lining plate, a press plate is arranged in the upper fixing plate, the lower die structure comprises a lower template, the lower template is provided with a convex die through a lower lining plate, cutter insert components are arranged in the upper fixing plate and around the four sides of the press plate, and each cutter insert component comprises a second cutter insert, a fifth cutter insert, a sixth cutter insert and a third cutter insert used for cutting off the waste edge of the outer side of the left half shell of the workpiece and a fourth cutter insert, a seventh cutter insert, an eighth cutter insert and a first cutter insert used for cutting off the waste edge of the outer side of the right half part of the workpiece.

Description

technical field

[0001] The invention relates to the field of forming technology of auto parts, in particular to the field of stamping and forming of auto exhaust system parts, specifically a trimming die for heat shields of auto exhaust systems. Background technique

[0002] Process a kind of automobile exhaust system heat shield 40, see figure 1 , the traditional one-piece casting method is used for processing and forming. Because of the complex structure of the heat shield, the traditional one-piece casting method is not only difficult to form, but also has poor processing quality, low efficiency and high cost. In order to overcome the above-mentioned problems, the heat shield is now divided into the left half shell 41 and the right half shell 42, which are formed and processed separately, and then welded, and in order to improve the processing efficiency, integral stamping is adopted when the left half shell and the right half shell are formed. After the left half shell ...

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