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Three-dimensional bending, twisting and forming die based on multi-point control

A forming die, multi-point control technology, applied in forming tools, manufacturing tools, metal processing equipment and other directions, can solve the problems of high testing cost, long design and production cycle, high manufacturing cost of bending and twisting parts, etc. The effect of reducing manufacturing costs and simplifying operations

Active Publication Date: 2011-11-16
于沛洲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design and production cycle of the mold is long and the test cost is high. Due to the influence of the production batch and the cost of the mold, the manufacturing cost of the stretch-bent torsion part remains high

Method used

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  • Three-dimensional bending, twisting and forming die based on multi-point control
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  • Three-dimensional bending, twisting and forming die based on multi-point control

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Embodiment Construction

[0014] The present invention adopts the finite element method to divide the forming surface of the stretch bending torsion mold into several sections, and each section is used as a control unit 2 of the forming mold. The main forming parameters such as profile thickness and profile thickness are determined. Each control unit 2 is installed on a standard independent bracket 4, and the control unit 2 is composed of a forming surface slider 9, a guide slider 8, a vertical guide rail 10, a limiting element (pad 6, screw rod 14, horizontal pin 12 , vertical pin 13) and other components. The mold base 1 is provided with several mold base T-shaped slots 3 precisely at equal distances in the longitudinal direction, and the two ends of the bottom plate of the bracket 4 are connected in the T-shaped slots 3 of the mold base by bolts, and guide keys 5 are provided on the bottom plate of the bracket, and the control unit 2 The bracket 4 can move forward and backward along the T-shaped gr...

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PUM

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Abstract

The invention relates to a three-dimensional bending, twisting and forming die based on multi-point control, which belongs to the technical field of bending and forming of metal sectional bars and can be widely used in the production of precisely bent and twisted structural parts manufactured from various sectional bars in the industries of railway vehicles, automobile manufacturing and manufacturing of articles for daily use. In the invention, a finite element method is adopted to divide a forming surface of a bending and twisting die into a plurality of sections, each section is taken as one control unit of the forming die, and the exact quantity of the sections is determined according to the linear dimension, sectional thickness and other major forming parameters of the formed three-dimensional bent and twisted part. Each control unit is mounted on a standard independent support, and the control unit is composed of a support, a forming surface slide block, a guiding slide block, a vertical guide rail, limit components (including a cushion block, a screw, a horizontal pin shaft and a vertical pin shaft) and other elements. By adopting the invention, the bending curve of a three-dimensional bent and twisted part can be adjusted in the vertical surface direction, thus realizing the accurate control on the spatial three-dimensional curve configuration of the three-dimensional bent and twisted part.

Description

technical field [0001] The invention relates to mechanical design, mold structure and control actuator design, belongs to the technical field of metal material profile stretch bending, and can be widely used in the production of various profile precision bending and torsion structural parts in industries such as rail vehicles, automobile manufacturing, and daily necessities manufacturing. . Background technique [0002] The new generation of rail vehicles represented by high-speed trains has put forward high requirements for the lightweight and safety of the car body materials. The original carbon steel materials cannot meet this requirement, and the light specific gravity, high strength, corrosion resistance, Aluminum alloy profiles with the advantages of easy processing and recyclability have become the most suitable and promising car body materials, and are widely used in the manufacture of high-speed trains and subway trains. Due to the complex process and difficult pro...

Claims

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Application Information

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IPC IPC(8): B21D11/00B21D37/10
Inventor 于沛洲宋相军
Owner 于沛洲
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