Forming process and mold of double-head pressure plate type "o" groove for automobile air-conditioning pipeline

Abstract

The invention belongs to the technical field of pipe fitting machining, and provides a molding technology and mold for a double-end pressing plate type O-shaped groove of an automobile air conditionerpipeline in order to solve the molding technical problem of the double-end pressing plate type O-shaped groove of the automobile air conditioner pipeline. The molding technology comprises the steps of pressing plate pipe fitting placing, main clamping mold clamping, first-time stamping for expanding, second-time stamping for closing, third-time stamping for shoulder upsetting, auxiliary clampingmold clamping, fourth-time stamping for expanding, fifth-time stamping for shoulder upsetting, auxiliary clamping mold opening, sixth-time stamping for shaping, main clamping mold opening and pipe fitting taking. The molding mold comprises a main clamping mold used for clamping a pipe fitting, an auxiliary clamping mold used for clamping the pipe fitting and a pipe fitting molding device for pipefitting molding. According to the molding technology and mold, the original molding principle is changed, the molding technology for machining the double-end O-shaped groove is achieved through a coldupsetting mode, one-time clamping is adopted, step-by-step multi-station cold upsetting molding is conducted, therefore, the original technological difficulties are broken, the technological manufacture cost is reduced, the pressing plate machining cost is reduced, and the producing and machining convenience and efficiency are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of pipe fittings processing, and in particular relates to a molding process and a mold for a double-head pressure plate type "O" groove of an automobile air-conditioning pipeline. Background technique [0002] At present, in the automobile air-conditioning pipeline, the processing technology of the joint with the pressure plate and the "O" groove on the head is formed by rotating at high speed through three identical rollers, shrinking towards the surface of the pipe fitting and radial direction at the same time, and spinning and extruding. of. This method has certain limitations in the arrangement sequence of the production process of pipe fittings. It can only spin grooves for a single pipe, and cannot process double pipes at the same time, which increases the difficulty of the process and the turnover between processes is cumbersome; it is easy to form aluminum chips and The burrs seriously affect the su...

AI Technical Summary

Problems solved by technology

This method has certain limitations in the arrangement sequence of the production process of pipe fittings. It can only spin grooves for a single pipe, and cannot process double pipes at the same time, which increases the difficulty of the process and the turnover between processes is cumbersome; it is easy to form aluminum chips and Burrs seriously affect the surface quality and sealing performance of the "O" groove; the production of the pressure plate is difficult and costly

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