Pipe punching bending device

Abstract

A pipe punching bending device comprises a circular arc external mold, a circular arc internal mold, a jack, a sliding block, a sliding rail and a support base; the circular arc external mold is in sectorial cylinder shape, and the lower end face of the circular arc external mold is fixedly connected to the support base; the circular arc internal mold is in the sectorial cylinder shape, and the lower end face of the circular arc internal mold is fixedly connected to the sliding block; the jack is fixedly connected to the support base, and a piston rod of the jack extends out horizontally, andis connected to the connection surface of a piston rod in the circular arc external mold; the sliding block is movably installed on the sliding rail; the sliding rail is fixedly installed on the support base; and when the circular arc internal mold moves and comes into contact with the circular arc external mold, an arc-shaped groove A of the circular arc internal mold and an arc-shaped groove B of the circular arc external mold are spliced and combined to form a steel tube setting cavity. The pipe punching bending device provided by the invention has the advantages that the jack is started tomake the circular arc external mold and the circular arc internal mold combined, so that the bending of a straight steel tube can be achieved, and the operation is easy. In the press bending process,the arc-shaped groove A of the circular arc internal mold and the arc-shaped groove B of the circular arc external mold come into full contact with the outer wall of the straight steel tube, and thephenomenon that the bending part is flattened locally due to uneven stress is prevented effectively.

Description

technical field [0001] The invention relates to the technical field of bending machinery, in particular to a punching and bending device. Background technique [0002] In the production of steel pipe enterprises, steel pipe bending equipment is a commonly used equipment. Its function is to bend the steel pipe into a certain degree of curvature according to the needs of use. The existing bending mechanisms generally have complex structures and long production cycles. Defects. The traditional bending method is manual bending. This method is difficult to control the bending angle and strength. It is labor-intensive and time-consuming, and the accuracy is very low. It is often difficult to meet the requirements of use; The tube wall of the tube is severely deformed under compression, and the force is uneven, which causes the channel in the tube cavity to be squeezed flat and cannot be used normally. Contents of the invention [0003] The purpose of the present invention is t...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a stamping pipe bending device, which solves the problem that it is difficult to control the bending angle and strength of the traditional manual bending of steel pipes, and it is easy to cause the passage in the pipe cavity to be squeezed and cannot be bent. Problems with normal use

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