Supporting and shape preserving device for clamped section of metal pipe fitting

Abstract

The invention discloses a supporting and shape preserving device for a clamped section of a metal pipe fitting. The supporting and shape preserving device comprises a bending die, a bending die insert, a clamping die, a metal pipe fitting, a supporting and shape preserving mechanism and a feeding mechanism. The feeding mechanism is installed on the bending die insert, then the supporting and shapepreserving mechanism is installed on the feeding mechanism, the feeding mechanism can feed the supporting and shape preserving mechanism into a clamped part of the metal pipe fitting, a stepping motor is driven, and the supporting and shape preserving mechanism can be expanded and contracted. During clamping, the action of the force in the direction opposite to that of clamping force is realized,and the radial deformation of the pipe fitting during clamping can be effectively prevented. After bending ends, the motor can be driven, so that the supporting and shape preserving device can retreat, and the occupied space can be reduced by detaching the feeding mechanism. By means of the supporting and shape preserving device for the clamped section of the metal pipe fitting, the clamped section of the pipe fitting can be effectively supported, the deformation and damage of the pipe fitting during clamping are prevented, the effect of protecting the pipe fitting is realized, and meanwhilethe supporting and shape preserving device is modularized and is convenient to replace and high in universality.

Description

technical field [0001] The invention relates to a support device, in particular to a support shape-keeping device for a clamping section of a metal pipe fitting. Background technique [0002] Metal pipe fittings are bent into shape by determining a reasonable fulcrum and stress point and applying a certain bending moment or bending force. In the numerical control bending forming, one end of the pipe is clamped by the bending die insert and the clamping die, so as to fix the relative position of the pipe and the bending die. During bending forming, the pipe bending die, bending die insert and clamping die rotate synchronously, and drive the pipe fittings to rotate around the circular groove of the bending die. The pipe fits the bending die to obtain the desired bending radius. On the one hand, the pressure die exerts a boosting effect on the pipe through friction, and on the other hand, it restrains the pipe laterally, so that the deformed part of the pipe is always close t...

AI Technical Summary

Problems solved by technology

[0003] Aiming at problems such as pinch damage and pinch marks in the clamping section of the bend pipe caused by too much clamping force during the bending forming process of ultra-thin-walled pipes, the present invention proposes a modular design, strong versatility, easy operation, High-efficiency, easy-to-assemble and disassemble straight-line clamping section support device

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