Machining fixing device for special-shaped steel pipe

Abstract

The invention relates to the technical field of special-shaped steel pipe machining, in particular to a machining fixing device for a special-shaped steel pipe. The device comprises a supporting mechanism, two clamping mechanisms, a material lifting mechanism and a dust receiving mechanism. When a steel pipe of a semi-circular structure is machined, the inner wall of the steel pipe of the semi-circular structure is fixed through the two clamping mechanisms with the side walls of the arc-shaped structures, meanwhile, steel pipes of different types and of semi-circular structures are expanded and fixed, and the surface of the steel pipe of the semi-circular structure can be comprehensively ground and polished. The surface of the supporting mechanism is slidably connected with the material lifting mechanism located between the two clamping mechanisms, the two clamping mechanisms are loosened when the ground semicircular steel pipe is cut, the material lifting mechanism is adjusted to abutagainst the bottom of the semicircular steel pipe, and saw clamping is avoided; and the dust receiving mechanism used for storing sundries falling when the semicircular steel pipe is cut is installedat the bottom of the supporting mechanism, when the steel pipe is cut, chippings fall into the dust receiving mechanism, and cleaning is convenient.

Description

technical field [0001] The invention relates to the technical field of processing special-shaped steel pipes, in particular to a processing and fixing device for special-shaped steel pipes. Background technique [0002] Steel pipes can be divided into seamless steel pipes and seamed steel pipes according to the seamlessness of seams. Seamed steel pipes are divided into spiral steel pipes and straight seam steel pipes according to the different welds. The two are widely used in construction piling, structure, steel structure, load-bearing, drainage and other aspects. The main materials are carbon steel, stainless steel, alloy steel. Among them, carbon steel is the most commonly used material. According to the production method, seamless steel pipes can be divided into: hot-rolled seamless pipes, cold-drawn pipes, precision steel pipes, thermal expansion pipes, cold spinning pipes and extruded pipes, etc. Of course, there are also some steel pipes. In the manufacturing indus...

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Problems solved by technology

[0003] At present, when grinding some semicircular steel pipes that require high precision on the surface, they are directly placed on the surface of the workbench, and then the semicircular steel pipes are fixed on the workbench through arc-shaped clamps and screws. The block is on the surface of the semi-circular steel pipe. It is difficult to polish the steel pipe fixed by the clamp block during grinding. The clamp block needs to be disassembled to polish the unpolished place, which requires secondary processing, and it is difficult to adjust according to different types of steel pipes. Carry out expansion and clamping; after the grinding is completed, it is necessary to loosen the clamp block when cutting the steel pipe. When cutting, the bottom of the steel pipe is not provided with a support mechanism, resulting in the situation of jamming the saw, which is not conducive to cutting the semicircular steel pipe

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