Metal Profile Stretch Bending Device

Abstract

The invention relates to a tensioning and bending device for metal sections. The tensioning and bending device for the metal sections is used for tensioning and bending to shape the metal sections. The tensioning and bending device is characterized by comprising a die, a clamping tensioning and bending part, a stretching part and a control part, wherein the die is equipped with an arc surface with preset bending amount; the clamping tensioning and bending device comprises a clamping part for clamping the metal sections, and a tensioning and bending part for enabling the metal sections to be clung to the arc surface; the stretching part is used for stretching the metal sections while bending; the control part comprises a storing part, at least two displacement sensors, at least one tension force sensor, a comparison part, a calculating part and a control part; the calculating part is used for calculating the current bending amount according to the current distance sensed by the displacement sensor and calculating the rest stretching force according to the difference between the current bending amount and the preset bending amount; the comparison part is used for comparing the current bending amount, the stored preset bending amount and the current stretching force with the preset stretching force and outputting a comparison result; the control part is used for controlling the metal sections to be tensioned and bent and stretched according to the comparison result and the calculating result.

Description

technical field [0001] The invention relates to a metal profile stretch bending device, in particular to a metal profile stretch bending device capable of precisely controlling the stretching force and measuring the bending amount during the stretch bending process. Background technique [0002] At present, metal profiles with a certain amount of bending are widely used in production and life, especially in the manufacture of aircraft and automobiles. In order to obtain metal profiles with a predetermined amount of bending, it is necessary to stretch the metal profiles forming. [0003] The traditional stretch bending process is to bend and deform the metal profile by controlling the tensile force on the metal profile while the metal profile is being stretched. In the traditional stretch bending process, the stop time of stretch bending cannot be precisely controlled, and the stretch bending shape can only be determined based on experience. After the metal profile is stretc...

AI Technical Summary

Problems solved by technology

[0003] The traditional stretch bending process is to bend and deform the metal profile by controlling the tensile force on the metal profile while the metal profile is being stretched. In the traditional stretch bending process, the stop time of stretch bending cannot be precisely controlled, and the stretch bending shape can only be determined based on experience. After the metal profile is stretched and formed, it is necessary to remove the metal profile from the stretch bending device and use a specific measurement Institutions are used to test the bending amount of metal profiles, which is time-consuming and labor-intensive, and the efficiency is low

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