Pre-welding tool for refrigerating system valve assembly

Abstract

The invention relates to a pre-welding tool for a refrigerating system valve assembly. The pre-welding tool comprises a water tray and a clamp for clamping an object to be welded. The clamp is composed of a first clamp and a second clamp. The first clamp and the second clamp are respectively composed of a supporting rod which is of a retractable structure and a clamping groove in the top of the supporting rod. The clamping groove of the first clamp and the clamping groove of the second clamp are arranged oppositely. The pre-welding tool further comprises an air cylinder and a control device, wherein the air cylinder is used for pushing the clamp to enable the first clamp and the second clamp to be clamped mutually and tightly, and the control device is used for controlling the motion of the air cylinder. The bottom of the supporting rod of the second clamp is fixed, and the bottom of the supporting rod of the second clamp is connected with a piston rod of the air cylinder. The pre-welding tool solves the problems that when an existing valve assembly welding tool is used for clamping and welding a valve body or a pipeline, the valve body or the pipeline may be damaged, the welding quality is poor and working efficiency is low.

Description

technical field [0001] The invention relates to refrigeration fittings, in particular to a pre-welding tooling for refrigeration system valve components. Background technique [0002] Through on-the-spot investigation and research on a number of refrigeration equipment manufacturers (such as central air conditioners, heat pump water heaters), we found that many companies need to weld refrigeration components during the production process: copper pipes, expansion valves, solenoid valves, etc., to form Pre-welded components, but there is basically no tooling in the welding process. Many welding workbenches weld a few support tubes as welding tooling. When clamping welding is required, they are usually fixed with a bench vise, which is low in work efficiency and sometimes uses too much force. Vigorously, the copper tube or valve body may be damaged. [0003] In a patent document with application number 200820189395.4, an adjustable welding tool is disclosed. The welding tool i...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a pre-welding tooling for refrigeration system valve assemblies, which can solve the problems that the existing valve assembly welding tooling may damage the valve body or copper pipe during clamp welding, poor welding quality and low work efficiency. question

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