Clamp of pipes

Abstract

The invention relates to a clamp of pipes. The clamp comprises a plurality of rotating shafts arranged at a pipe inserting opening of a pipe cutting machine, the plurality of rotating shafts are located on the same circumference with the pipe inserting pipe opening as the circle center, each rotating shaft is provided with a rotating arm, the rotating arms are movably connected with the rotating shafts, the rotating arms comprise driving rotating arm bodies and driven rotating arm bodies, each rotating arm comprises a clamping part and two driving parts, each clamping part is provided with a clamping block, the plurality of clamping blocks are located on the same circumference with the pipe inserting opening as the circle center, every two adjacent rotating arms are connected with each other through a connecting rod, an air cylinder is arranged on the pipe cutting machine, a movable rod of the air cylinder is hinged to one driving part of the corresponding driving rotating arm body, acylinder body of the air cylinder is movably connected with the pipe cutting machine, and an adjusting mechanism used for driving the cylinder body of the air cylinder to move is further arranged on the pipe cutting machine. According to the clamp, the pipes with different pipe diameters can be clamped, and the cutting length of the pipes can be ensured to be consistent.

Description

[0001] 【Technical Field】 [0002] The invention relates to the technical field of pipe cutting machines, in particular to a clamp for pipe fittings. [0003] 【Background technique】 [0004] In the pipe cutting machine, the fixture is one of the main functional parts. The role of the clamp is to reliably clamp and fix the pipe for the next step of cutting. In the current pipe cutting machine, the clamp is usually two semi-circular aluminum plates that can be joined together. Because the arc radius of the aluminum plate is fixed, it can only clamp pipes of one pipe diameter. When pipe fittings of different pipe diameters need to be cut, the corresponding aluminum plate needs to be replaced for clamping, which is inconvenient to operate. [0005] With the gradual improvement of the level of production research and development, current pipe cutting machines usually use fixtures that can be applied to pipes of different pipe diameters. The clamp is usually composed of a plurality of link...

AI Technical Summary

Problems solved by technology

The fixture with the above-mentioned structure also has disadvantages, because the pipe fittings to be cut by the pipe cutting machine are in the assembly line. Due to the difference in the stroke of the clamp block, there must be a certain time difference, which leads to differences in the cutting length of the pipe fittings when applied to pipe fittings of different diameters, which affects the quality of the final product.

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