Automatic tube plate welding machine

A tube sheet, automatic technology, applied in welding equipment, welding accessories, arc welding equipment, etc., to achieve the effect of easy portability, high welding efficiency and simple structure

Active Publication Date: 2017-11-21
CHINA NUCLEAR IND FIFTH CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing tube-sheet automatic welding machine has air convection in the tube during welding, which requires a large amount of protective gas to effectively protect the weld area; the machine head needs to be reset for one cycle before welding can be performed again

Method used

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  • Automatic tube plate welding machine
  • Automatic tube plate welding machine
  • Automatic tube plate welding machine

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can obviously be implemented in many other ways different from this description, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

[0015] figure 1 The structure of the automatic tube-sheet welding machine is shown in section, figure 2 with image 3 The construction of the positioning shaft is shown separately. It should be noted that these and other subsequent drawings are only examples, which are not drawn according to the same scale, and should not be taken as limitations on the protection scope of th...

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PUM

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Abstract

The technical problem to be solved of the invention is to provide an automatic pipe plate welder, which can obtain excellent gas shield under the condition of a small amount of shield gas. In order to solve the technical problem, the invention provides an automatic pipe plate welder; the automatic pipe plate welder comprises a handle, a gas pipe joint, a conductive contact, a chuck, a rotating shaft, a positioning shaft rod, a welding gun head, and a prime mover and a driving mechanism for enabling the rotating shaft to rotate, wherein the rotating shaft is connected with the positioning shaft rod; and the rotating shaft and the gas pipe joint are formed to a gas guide channel of shield gas. The automatic pipe plate welder is characterized in that the positioning shaft rod comprises a connecting rod and a gas baffle plate; the connecting rod is connected with the rotating shaft; and the gas baffle plate is positioned in a pipe of a welded pipe plate, and can form a gas chamber in the pipe to reduce the air suction in welding.

Description

technical field [0001] The invention relates to a tube-sheet welding machine, in particular to a portable automatic tube-sheet welding machine suitable for small pipe diameters. Background technique [0002] Automatic tube-sheet welding machines are widely used in tube-sheet heat exchangers in boilers, pressure vessels, chemical, nuclear power, thermal power and other industries. Tube-sheet automatic welding is an automatic welding method that uses inert gas as a protective gas to isolate the external air to prevent oxidation. Patent document CN 2659618Y discloses a single-gas inner-guided tube-sheet welding machine, which includes a body, an air inlet joint, a cable seat, a welding cabinet, a porcelain nozzle, and an arc tungsten rod, and a rotating spindle with a cavity in the body is connected to an air inlet joint , there is a worm wheel on the outer casing of the rotating main shaft, the rotating main shaft is connected with the body by the bearing, the worm is connect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16B23K9/32
CPCB23K9/167B23K9/325
Inventor 刘卫华唐兆忠陈军徐岩龙张亚滨赵相义
Owner CHINA NUCLEAR IND FIFTH CONSTR CO LTD
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