Clamp for laser cutting

Abstract

A clamp for laser cutting comprises a support. A horizontal adjusting spring and symmetrical horizontal support balls are disposed between the support and a movable support plate. Two clamp parts which are in left-right symmetry are disposed on the movable support. A connection fixing plate of each clamp part is vertically disposed on one side of the same. A spring guide rod fixing plate is disposed between each connection fixing plate and the movable support plate. The included angle alpha of each spring guide rod fixing plate ranges from 30 degrees to 60 degrees. A vertical adjusting spring is sleeved outside each spring guide rod disposed on the corresponding spring guide rod fixing plate. A support frame support board which is movably connected with the upper end of each connection fixing plate is disposed above each vertical adjusting spring. A support part is disposed on each support frame support board. The clamp has the advantages that the clamp has a support function as common clamps and has multiple freedom degrees, petroleum pipes with bending deformation can still be machined by the clamp, petroleum pipe cutting continuity is well guaranteed, and machining efficiency is increased greatly.

Description

technical field [0001] The invention relates to a jig for laser cutting. Background technique [0002] In recent years, as laser processing has become more and more widely used in the industrial field, various laser processing equipment with different functions have come out one after another. Typical examples are laser cutting machines, laser welding machines and laser marking machines. This requires the design and production of a series of high-precision, high-performance fixtures to match it. [0003] Because the oil pipe wall is thicker, usually about 8-10mm, the pipeline is longer, usually between 8-12m. However, the processing stroke of the existing laser cutting machine is only about 3-5m, therefore, the method of segmental cutting is usually used for processing. Laser processing belongs to thermal processing. Sectional processing of such thickened and elongated pipe fittings is likely to cause thermal stress and internal stress release of the pipe fittings, caus...

AI Technical Summary

Problems solved by technology

This kind of fixture is too rigid, on the one hand, there is no release space for the deformation of the workpiece, on the other hand, the stress distribution inside the workpiece is more complicated, it is difficult to find the law, and it is difficult to make corresponding adjustments to the workpiece

Therefore, after processing some pipes in sections, due to the local bending and deformation of the pipes, the torque required for pipe rotation increases rapidly, which can easily cause the rotation parts of the laser cutting machine to crash, which greatly damages the life of the laser cutting machine

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