Leftward and rightward double-bending type numerical-controlled pipe bending machine

Abstract

The invention relates to a leftward and rightward double-bending type numerical-controlled pipe bending machine, and belongs to the technical field of pipe processing. The leftward and rightward double-bending type numerical-controlled pipe bending machine comprises a rack, a control unit, a pipe bending device and a feeding vehicle which are mounted on the rack and controlled by the control unit, wherein the pipe bending device comprises a machine head, a die guide unit and a die changing unit; the machine head comprises a mounting seat, a leftward pipe bending unit and a rightward pipe bending unit which are mounted on the mounting seat and driven by a same pipe bending motor; each of the leftward and rightward pipe bending units comprises a circular die, a swing arm and a clamping die mounted on the swing arm; the die changing unit is controlled by the control unit to drive the machine head to move in transverse and vertical directions being perpendicular to the axial direction of a pipe to be bent relative to the rack, so that the numerical-controlled pipe bending machine can switch between a leftward bending working mode and a rightward bending working mode. According to the leftward and rightward double-bending type numerical-controlled pipe bending machine, the same pipe bending motor drives the leftward pipe bending unit and the rightward pipe bending unit simultaneously, at the same time the switching between the leftward pipe bending unit and the rightward pipe bending unit is realized through the die changing unit, not only is the pipe bending quality effectively improved, but also the compactness of the integrated layout is improved, and therefore the leftward and rightward double-bending type numerical-controlled pipe bending machine can be extensively applied to fields such as air conditioning and aviation.

Description

technical field [0001] The invention relates to pipe material processing equipment, in particular to a left and right co-bending numerical control pipe bending machine. Background technique [0002] CNC pipe bending machines are widely used in air conditioners, automobiles, ships, aerospace and other industrial fields. A circular die for controlling the radius of the pipe bend, a swing arm and a clamping die installed on the swing arm for clamping pipe fittings together with the circular die are installed on the top. According to the different bending directions, it can be divided into left-bend type pipe bender, right-bend type pipe bender and left-right bend type pipe bender. [0003] The patent document with the publication number CN101817038A discloses a bending mechanism for building a left and right co-bending CNC pipe bender, including a support, a rotary gear rotatably installed on the support, and a rotary gear for driving the rotary gear. The motor is slidably in...

AI Technical Summary

Problems solved by technology

Although it can achieve left and right co-bending, in order to avoid the interference of the rotary gear on the bending process, the two centering shafts are required to be far away from the rotary gear in height, and the swing arm and the clamping mold on the swing arm cannot be configured. Mechanism, it is easy to cause the instability of the whole pipe bending device and affect the quality of the pipe bending

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