A telescopic rocker arm, pipe bending equipment and pipe bending process for hot-simmer forming of multi-arc pipes

Abstract

The invention relates to a telescopic rocker arm, pipe bending equipment and pipe bending process for hot-simmering multi-arc pipes, including a straight pipe propulsion device, a hot-simmering pipe bending machine head, a conversion fixture, a telescopic traction rocker arm and a pipe carrying car; The pipe is hoisted into the straight pipe propulsion device, which pushes the steel pipe through the hot-simmering pipe bending head, and the high-frequency electromagnetic induction coil of the pipe bending head heats the steel pipe to a plastic state, and the softened steel pipe is pulled by the telescopic rocker arm to rotate to form a circle. The radius of rotation of the arc and the rocker arm varies according to the multi-curvature radius requirements of the arc pipe. Straight pipe clamps are used when pulling straight pipes, and bend pipe clamps are used when pulling bent pipes. The formed pipes are towed by a pipe carrier with universal wheels. Move, push forward repeatedly - bend the pipe - adjust the rocker arm and fixture - continue to bend the pipe, and finally realize the one-time forming of the multi-curvature radius pipe. By changing the original process device and process, the invention provides a process for one-time precise thermal simmering of multi-curvature radius arc pipes, thereby achieving the purpose of improving production efficiency and ensuring product quality.

Description

technical field [0001] The invention belongs to the field of pipe forming and processing, and in particular relates to a telescopic rocker, pipe bending equipment and a pipe bending process for hot-simmering multi-arc pipes, and is suitable for round steel pipes, square steel pipes and steel pipes of other cross-section types. Background technique [0002] As my country's economic development increases the requirements for tunnel roadway support, more and more pipe fittings are used. As one of the key components of pipe fittings, the elbow is one of the key components. Its preparation process plays a vital role in the development of support support. Because of its high production efficiency and low labor intensity, the hot-simmering pipe bending process is widely used. As a high-strength support structure, concrete-filled steel tube support is more and more widely used in underground engineering support such as tunnels or roadways. For the steel pipe support designed accordi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a telescopic rocker arm, pipe bending equipment and pipe bending process for hot-simmering forming of multi-arc pipes, in order to solve the problem that the current multi-curvature radius steel pipes are difficult to be hot-simmered, or there are large errors after forming. Failure to meet installation standards

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