Center clamping device for tube bending machines

Abstract

Disclosed is a center clamping device for a pipe bending machine. The center clamping device for the pipe bending machine comprises a box body, a rotating gear disk, a power device, a transmission mechanism and a clamping mechanism. The transmission mechanism comprises a main synchronous belt wheel, a left transition gear, a right transition gear, a left transmission gear, a right transmission gear, a left synchronous belt wheel, a right synchronous belt wheel and a synchronous belt, wherein the main synchronous belt wheel is fixedly connected to an output shaft of the power device, the left transition gear and the right transition gear are meshed with the rotating gear disk, the left transmission gear is meshed with the left transition gear, the right transmission gear is meshed with the right transition gear, the left synchronous belt wheel and the left transition gear are coaxial, and synchronously rotate, the right synchronous belt wheel and the right transmission gear are coaxial, and synchronously rotate, and the main synchronous belt wheel, the left synchronous belt wheel and the right synchronous belt wheel are connected through the synchronous belt. The left transition gear is connected to the box body through a first transition shaft, and the right transition gear is connected to the box body through a second transition shaft. According to the invention, transmission is stable, maintenance is convenient, the error generated by the rotating gear disk in the forward and backward rotation process is eliminated, and the rotating accuracy is improved.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a central clamping device for a pipe bending machine. Background technique [0002] Pipe bending machine is a common manufacturing process in the field of machinery manufacturing. It is used to bend pipes into target products with specific angles. The products are widely used in important fields such as aerospace, automobiles, ships, and construction machinery. [0003] The role of the central clamping device of the pipe bending machine in the whole machine is mainly to clamp the pipe and continuously adjust the angle of the pipe relative to the bending head, so as to match the bending mechanism at both ends of the central clamping device on the pipe. The bending action, the stability and rotation accuracy of the central clamping device directly affect the quality of the pipe bending. [0004] At present, the structure of the central clamping device used in the pipe bending machine is rel...

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Problems solved by technology

[0004] At present, the structure of the central clamping device used in the pipe bending machine is relatively complicated, the processing and installation are difficult, the power transmission system is unstable, and the forward and reverse errors of the turning gear plate are relatively large (the rotation accuracy is low), which leads to the unevenness of the finished pipe. Meet the requirements, eventually resulting in an increase in the cost of pipe production

For example: the Chinese patent with the publication number CN203281764 U discloses an automatic bending machine, which adopts a rotary clamping mechanism that can rotate 360 ​​degrees around the axis of the conveying metal pipe, and the shearing mechanism and bending mechanism of the equipment The mechanism is also located on the rotating mechanism at the same time, which leads to the extremely complicated structure of the whole equipment, which is not conducive to installation, and the power demand of the equipment is relatively large, and the manufacturing cost is also high

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