Clamp for welding of square tube and square plates

Abstract

The invention discloses a clamp for welding of a square tube and square plates. The clamp comprises a slide rail; a first square tube support block and a second square tube support block are slidablymatched with the slide rail; a first tube support surface of the first square tube support block and a second tube support surface of the second square tube support block are located on the same horizontal plane; the clamp further comprises a first square plate support base and a second square plate support base which are located at the outer end of the first square tube support block and the outer end of the second square tube support block correspondingly, slidingly matched with the slide rail and connected with square plates correspondingly; the inner side surfaces of the two square plate support bases are provided with vertical surfaces; the vertical surfaces, the inner and outer surfaces of the square plates and the end surfaces of the square tubes are parallel and are closely attached; the square plate support bases are provided with structures positioned at any position relative to the longitudinal direction of the slide rail; and the clamp further comprises a limiting structurefor defining displacement of the square tubes relative to the longitudinal direction of the slide rail. The tube and the plates which are clamped by the clamp are aligned accurately, the axial clamping effect is good, and the clamp is simple in structure and high in clamping and welding operation quality and efficiency.

Description

technical field [0001] The invention relates to the technical field of pipe processing equipment, in particular to a fixture for welding square pipes and square plates. Background technique [0002] Square tubes include tubes with square or rectangular cross sections, that is, square tubes and rectangular tubes, collectively referred to as square tubes, and the materials are generally metal tubes such as stainless steel tubes, aluminum alloy tubes, etc. As it is used more and more widely, it is necessary to weld end plates at one or both ends of square tubes in many occasions. The shape of the end plates is generally the same as that of the tubes to be welded. The area is greater than the cross-sectional area of ​​the tube, that is, there are surplus sides on all four sides. Welding is generally electric welding or oxygen welding, and laser welding is also more common recently. [0003] In the early days, some people used hand tools to support and fix square plates and squ...

AI Technical Summary

Problems solved by technology

[0006] After adopting the above structure, the fixture used for the welding of square tube and square plate of the present invention has the following advantages: the plate and tube are clamped from the length direction by relying on the square tube support block and the square plate support seat, which overcomes the obstruction and interference of the prior art fixture itself Welding tools, defects that affect welding quality, etc., the tube and plate are aligned accurately, and the axial clamping effect is good, which ensures the welding quality of the joint between the tube and the plate. Its structure is simple, easy to operate, and the work efficiency of clamping and welding High, strong applicability

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