Four-way valve tube assembly and low pressure valve assembly mixed automatic flame brazing machine

Abstract

The embodiment of the invention discloses a four-way valve pipe component and low-pressure valve component mixed automatic flame brazing machine. The machine comprises two systems, wherein the two systems both comprise turntable type stations in the middles, welding systems arranged around the turntable type stations, and automatic gas pressure stabilizing control systems; the turntable type stations comprise driving devices, and turntables arranged at the upper parts of the driving devices; index plate indexing mechanisms and tool fixtures are arranged on the turntables; one of the two turntables rotates clockwise, and the other one rotates anticlockwise; the welding systems comprise one set of main welding mechanisms, two sets of secondary welding mechanisms and four independent wire feeding mechanisms; and the automatic gas pressure stabilizing control systems are connected with gas supply devices of the welding systems, and comprise pressure transducers, PLCs and automatic pressure adjusting controllers. The invention aims to provide a four-way valve pipe component and low-pressure valve component mixed automatic flame brazing machine with stable welding flame, high welding efficiency, good welding quality and universality on the tool fixtures.

Description

technical field [0001] The invention relates to the field of brazing machines, in particular to an automatic flame brazing machine for mixing a four-way valve pipe assembly and a low-pressure valve assembly. Background technique [0002] At present, the domestic flame brazing industry is mainly based on manual welding. During the welding process, operators need to weld the products based on years of welding experience. Manual instability has led to an increase in the defective rate of products and instability in output. [0003] The appearance of the automatic flame brazing machine is a major breakthrough in the flame brazing industry. The appearance of the automatic flame brazing machine solves the major problems of low quality and low output of manual welding products. [0004] However, there are still great technical problems in the development of automatic welding. The main factors hindering the automatic progress of flame brazing are the following two points: [0005] ...

AI Technical Summary

Problems solved by technology

The welding time and cycle of the automatic flame brazing machine are all pre-set. When the pressure and flow fluctuate, the flame will change accordingly, and then the temperature will change, and the welding quality is difficult to guarantee.

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