On-line Bending Device for Three-Dimensional Variable Curvature Profiles Actively Pulled by Robot

A technology of bending forming and robotics, applied in the direction of feeding device, positioning device, storage device, etc., can solve the problems of uneven force on the cross section of the profile and high extrusion load, so as to reduce bending springback and extrusion The effect of loading

Active Publication Date: 2020-04-03
HUNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The present invention aims to provide a three-dimensional variable-curvature profile online bending forming device actively pulled by a robot, which overcomes the problems of high extrusion load required, uneven force on the cross-section of the profile, and surface scratches existing in the existing extrusion-bending integration method. Defects, improve product bending quality and material utilization

Method used

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  • On-line Bending Device for Three-Dimensional Variable Curvature Profiles Actively Pulled by Robot
  • On-line Bending Device for Three-Dimensional Variable Curvature Profiles Actively Pulled by Robot
  • On-line Bending Device for Three-Dimensional Variable Curvature Profiles Actively Pulled by Robot

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Embodiment 1

[0057] Embodiment 1: With the method of the present invention, the three-dimensional variable-curvature section bar online bending forming device (see figure 2 ). Figure 7 and 8Shown are the cross-section of the extruded profile and the three-dimensional variable curvature bending radius, the material is 6061 aluminum alloy, the diameter of the extruded ingot is 205mm, and the length is 400mm. The model of the extruder is XJ-1900T, the initial ingot temperature is 480°C, the temperature of the extrusion cylinder is 450°C, the temperature of the extrusion pad and the extrusion die is 450°C, the speed of the extrusion rod is 4mm / s, and the extrusion Ratio 35.4, the quenching method is water jet. The finite element analysis determines that the optimal bending deformation temperature is 310°C, and the radii of the trajectory paths of the traction device of the active traction robot considering springback compensation are 1413 and 1228mm, respectively. The operating speed of th...

Embodiment 2

[0058] Embodiment 2: With the method of the present invention, at the outlet of the 800T extruder, arrange the active traction three-dimensional variable curvature profile on-line bending forming device (see figure 2 ). Figure 9 and 10 The section and three-dimensional variable curvature bending radius of the extruded profile are shown, the material is 6063 aluminum alloy, the extruder model is XJ-800T, the diameter of the extruded ingot is 86mm, and the length is 250mm. The initial ingot temperature was 480°C, the temperature of the extrusion cylinder was 430°C, the temperature of the extrusion pad and the extrusion die was 430°C, the speed of the extrusion rod was 5 mm / s, the extrusion ratio was 23.7, and the quenching method was air cooling. The optimal bending deformation temperature determined by finite element analysis is 255°C, and the radii of the traction device running track path of the active traction machine considering the springback compensation are 1358 and 16...

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Abstract

The invention discloses a three-dimensional variable-curvature sectional material online bending and forming device pulled by a robot initiatively. The three-dimensional variable-curvature sectional material online bending and forming device comprises a horizontal extruding machine, a quenching device, a guiding device, the initiatively-pulling robot, a cutting robot and a transfer robot; the quenching device is arranged on the outlet side of the horizontal extruding machine and is used for controlling the temperatures of all cross sections of an extruded sectional material; the guiding device is arranged in the quenching device and is used for straightening and positioning on the extruded sectional material; the initiatively-pulling robot is arranged on the discharging side of the quenching device and is used for pulling the extruded sectional material to achieve the three-dimensional variable curvature; the cutting robot is used for cutting the variable-curvature sectional material output by the initiatively-pulling robot; and the transfer robot is used for sending the cut variable-curvature sectional material output by the cutting robot into an extruding and conveying roller bed. By means of the three-dimensional variable-curvature sectional material online bending and forming device, the defects that by means of an existing extruding and bending integrated method, the required extruding load is high, the stress of the cross sections of the sectional material is uneven, and surface scratches are generated are overcome, bending and forming quality of a product is improved, and the material utilization rate is increased.

Description

technical field [0001] The invention relates to the field of metal plastic processing technology and equipment, in particular to an online bending forming device for three-dimensional variable-curvature profiles actively pulled by a robot. Background technique [0002] Focusing on the sustainable development in the future, low fuel consumption and low emission technologies have become key technologies to be solved urgently in the development of the automobile industry. Lightweight is widely considered to be the most effective way to achieve energy saving and emission reduction. Aluminum alloy has a series of advantages such as low density, high specific strength and specific stiffness, good collision performance, easy recycling and no pollution, and is an ideal lightweight material for car bodies. Compared with the steel body, the all-aluminum body is more than 30% lighter. It has the characteristics of high rigidity and good crashworthiness, and has excellent development p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/04B21D11/02B21D43/04
CPCB21D11/02B21D43/04B23P23/04
Inventor 李落星刘志文徐从昌
Owner HUNAN UNIV
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