Dual-purpose auxiliary pushing device for pipe bending machine

Abstract

The invention discloses a dual-purpose auxiliary pushing device for a pipe bending machine. The auxiliary pushing device is arranged on a rack of the pipe bending machine, is positioned behind a pipe bending die and comprises an auxiliary pushing die sleeve, an auxiliary pushing plate, an auxiliary pushing connection block and an auxiliary pushing oil cylinder; the axis of the auxiliary pushing oil cylinder is horizontally arranged; a cylinder body of the auxiliary pushing oil cylinder is fixed with the auxiliary pushing die sleeve and a piston rod of the auxiliary pushing oil cylinder runs through the auxiliary pushing die sleeve; the auxiliary pushing connection block is fixedly arranged on the piston rod in a detachable manner; the auxiliary pushing plate is fixedly connected with the auxiliary pushing connection block; supporting rollers for supporting the auxiliary pushing plate to horizontally reciprocate are rotationally arranged on the auxiliary pushing die sleeve; an elastic resetting part is arranged between the auxiliary pushing connection block and the auxiliary pushing plate. The auxiliary pushing device not only can be suitable for the fine pipe bending requirement of a thin-wall bent small-radius steel pipe, but also is suitable for the rapid pipe bending requirement of a thick-wall bent large-radius steel pipe.

Description

Technical field [0001] The invention relates to an auxiliary pushing device, in particular to a dual-purpose auxiliary pushing device of a pipe bender. Background technique [0002] The auxiliary push device of the pipe bender is an important part of the pipe bender. After the steel pipe is fed, the part to be bent of the steel pipe enters the position of the pipe bending die of the pipe bender, and is clamped and rotated by the inner and outer pipe bending dies. At the rear of the part, an auxiliary pushing device is needed to assist in pressing the steel pipe to push the steel pipe forward. The auxiliary pushing device can prevent the steel pipe from shifting and ensure the accuracy of the steel pipe bending. [0003] At present, the auxiliary pushing device of the pipe bender mainly includes an auxiliary pushing die sleeve, an auxiliary pushing plate, an auxiliary pushing connecting block and an auxiliary pushing oil cylinder. The auxiliary pushing mold sleeve is driven by a pow...

AI Technical Summary

Problems solved by technology

However, this auxiliary thrust device has the following defects: since the auxiliary thrust plates are all driven by the auxiliary thrust oil cylinder, and the piston rod of the auxiliary thrust oil cylinder runs relatively slowly, especially when the auxiliary push plate is reset, the movement is slow, so the efficiency of the elbow is restricted. ; Especially when bending steel pipes with thick walls and large bending radii, the constraints are more obvious

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