Automobile tailpipe port forming die and die replacing method

Abstract

The invention discloses an automobile tailpipe port forming die which comprises a die frame and multiple die form cavities. The die form cavities include an upper form cavity and a lower form cavity, a chamber used for clamping pipe fittings is formed after the upper form cavity and the lower form cavity are closed, and each die form cavity correspondingly clamps different shapes and specifications of pipe fittings. A lower die bottom plate is arranged on the lower portion of the die frame and provided with a groove or a first T-shaped groove, the lower form cavity is detachably fixed in the groove or the first T-shaped groove, the upper portion of the die frame is provided with an upper die plate, a T-shaped key is arranged at the bottom of the upper die plate, the upper portion of the upper form cavity is provided with a second T-shaped groove socketed with the T-shaped key, the upper form cavity is detachably fixed on the upper die plate, and a punch device and a cutter device are arranged on the periphery of the die frame. By the automobile tailpipe port forming die, the number of forming dies can be decreased, and die manufacturing cost is greatly reduced; to process different pipe fittings, only die form cavities matched with corresponding pipe fittings are needed to be replaced, so that convenience and fastness are achieved, and time and labor are saved.

Description

technical field [0001] The invention relates to a device for forming and cutting the ports of special-shaped pipes, in particular to a forming die for the port of an automobile exhaust manifold, and also relates to a method for changing the forming die. Background technique [0002] The automobile exhaust manifold assembly is an important part of the automobile exhaust system. Its function is to collect the exhaust gas after the combustion of the automobile engine, and then discharge it out of the vehicle through the exhaust pipe, exhaust gas purifier, muffler, etc. The manifold assembly includes multiple manifolds, each of a different shape and size. [0003] At present, the manifold port is processed by a molding machine. During the processing, the manifold is fixedly clamped in the molding die, and each molding die is suitable for a manifold of one shape and size. According to the design structure of the existing molding machine, the molding die often needs to be replace...

AI Technical Summary

Problems solved by technology

When changing the mold of this device, the upper mold assembly, the lower mold assembly and the forming cutting device (punch and cutter) are actually replaced together, which is also time-consuming and laborious.

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