Sealed pipe welding head

Abstract

The invention provides a seal type pipe-pipe welding machine head. The seal type pipe-pipe welding machine head comprises an upper clamping plate, a groove plate, a base plate, a cover plate, a lower clamping plate, a handle and a connecting base, wherein the upper clamping plate, the groove plate, the base plate, the cover plate and the lower clamping plate are sequentially arranged to form a seal type machine head body, the handle and the connecting base support and fix the machine head body, a first water cooling groove is formed in the upper clamping plate, a first water inlet pipe and a first water outlet pipe are arranged in a manner of being communicated with the first water cooling groove after penetrating the connecting base, a second water cooling groove is formed in the plate face of the side, connected with the base plate in a matched manner, of the cover plate, and a heat dissipation block is arranged in the second water cooling groove; and a second water inlet pipe and a second water outlet pipe are arranged in a manner of being communicated with the second water cooling groove after penetrating the connecting base. A third water cooling groove is formed in the lower clamping plate, a third water inlet pipe and a third water outlet pipe are arranged in a manner of being communicated with the third water cooling groove after penetrating the connecting base, the first water outlet pipe is connected with the second water inlet pipe, and the second water outlet pipe is connected with the third water inlet pipe to form a cooling water cooling system. The welding machine head is stable in welding, the welding efficiency and the welding quality are greatly improved, and meanwhile an operator can more comfortably use the head.

Description

technical field [0001] The invention belongs to the technical field of pipeline welding equipment, and in particular relates to a sealed pipe welding machine head. Background technique [0002] In the process of sealed welding pipes, a large amount of radiation and heat energy generated inside the welding head is transferred to the clamp body through the pipe fittings to be welded. Most of the sealed thin-walled pipe welding equipment on the market currently adopts internal water-cooled or air-cooled design, which is extremely A small part adopts external water cooling. Due to the small water cooling area, it is impossible to cool down quickly when welding for a long time or using in a high temperature environment, which will eventually lead to changes in the coordination parameters between the machine and the machine, and the material will generate heat due to high temperature heat. Expansion and contraction effect, resulting in unstable welding of the machine head and low ...

AI Technical Summary

Problems solved by technology

[0002] In the process of sealed welding pipes, a large amount of radiation and heat energy generated inside the welding head is transferred to the clamp body through the pipe fittings to be welded. Most of the sealed thin-walled pipe welding equipment on the market currently adopts internal water-cooled or air-cooled design, which is extremely A small part adopts external water cooling. Due to the small water cooling area, it is impossible to cool down quickly when welding for a long time or using in a high temperature environment, which will eventually lead to changes in the coordination parameters between the machine and the machine, and the material will generate heat due to high temperature heat. Expansion and contraction effect, resulting in unstable welding of the machine head and low service life and welding efficiency. For the operator, the high temperature of the pipe fittings after welding is still concentrated on the pipe fittings, which will burn the operator

[0003] On the other hand, for the sealed welding heads currently on the market, the upper and lower clamping plates need to frequently open and release the pipe fittings or close the clamping pipe fittings. After a long period of use, there will be a large gap between the upper and lower clamping plates, thus As a result, the air leakage in the sealed inert gas sealing chamber will cause the welding area to be oxidized by harmful gas, resulting in poor welding formation and low efficiency.

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