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Welding tool and method of medium carbon steel hollow step bar

A technology of welding tooling and ladder rods, applied in welding equipment, welding equipment, laser welding equipment, etc., can solve problems such as easy to generate defects, difficult to complete welding tasks, welding technical requirements, poor weldability, etc., to achieve controllable welding process, Fast and convenient assembly and disassembly, good clamping effect

Inactive Publication Date: 2015-05-13
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For workpieces made of medium carbon steel, their weldability is poor at room temperature, and defects are easily produced during the welding process. It is difficult to complete the welding task or meet the welding technical requirements during welding

Method used

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  • Welding tool and method of medium carbon steel hollow step bar

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Embodiment Construction

[0028] Such as figure 1 A welding tool for a medium-carbon steel hollow ladder bar is shown, which has a load-bearing frame, and a clamping mechanism is arranged in the load-bearing frame. The preheating welding system is installed on the load-bearing frame and cooperates with the clamping mechanism; the load-bearing frame includes Column 16, column 16 is provided with upper support plate 11, middle support plate 3 and lower support plate 1 successively from top to bottom; And the positioning sleeve 14 that is detachably connected with the clamping cylinder 12, the inner diameter of the positioning sleeve 14 matches the outer diameter of the thin hollow rod 10 in the medium carbon steel hollow ladder rod, the positioning sleeve 14 and the thin hollow rod 10 are clearance fit, and the positioning The inside of the sleeve 14 is provided with a steel ball 13 for auxiliary rotation, and a hollow positioning piece 6 coaxial with the positioning sleeve 14 is provided below the posit...

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Abstract

The invention provides a welding tool of a medium carbon steel hollow step bar. The welding tool comprises a bearing strength frame, a clamping mechanism and a pre-heat welding system, wherein the bearing strength frame comprises a stand column, and the stand column is provided with an upper support plate, a middle support plate and a lower support plate; the clamping mechanism comprises a clamping cylinder installed under the upper support plate and a locating sleeve detachably connected with the clamping cylinder, the inner diameter of the locating sleeve matches with the outer diameter of a thin hollow rod, a steel ball used for assisting to rotate is arranged in the locating sleeve, a hollow locating piece is arranged below the locating sleeve, the hollow locating piece and the locating sleeve are arranged in a coaxial line, the inner diameter of the hollow locating piece matches with the outer diameter of a thick hollow rod, the hollow locating piece is arranged on the middle support plate through a thrust bearing, and an actuating motor connected with the hollow locating piece in a shaft mode is arranged below the hollow locating piece; the pre-heat welding system comprises an electromagnetic induction heater, a laser welder and a temperature sensor. The welding tool and a welding method have the advantages that the pre-heating process is linked with the welding process, the tool welding automation degree and working efficiency are improved, and the manufacturing technique of tools is simplified.

Description

technical field [0001] The invention relates to a welding tool, in particular to a welding tool for a medium carbon steel hollow stepped rod. Background technique [0002] The hollow structure can reduce the weight of the workpiece and achieve light weight. Therefore, the hollow stepped rod is widely used in shaft and rod mechanical devices. However, the structure of the hollow stepped rod is complicated, and the welding between the stepped rods can be welded by laser welding. For workpieces made of medium carbon steel, their weldability is poor at room temperature, and defects are easily produced during the welding process. It is difficult to complete the welding task or meet the welding technical requirements. Therefore, it is a technical problem to be solved urgently by those skilled in the art to develop a kind of welding tool and process suitable for medium carbon steel hollow stepped rods. Contents of the invention [0003] Aiming at the deficiencies of the prior a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/24B23K37/04B23K26/60
CPCB23K26/24B23K37/04
Inventor 王雪王天利邓丹
Owner LIAONING UNIVERSITY OF TECHNOLOGY
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