A Bending Method for Asymmetric Profiles with Open Sections

A bending forming, asymmetric technology, applied in metal processing equipment, feeding devices, positioning devices, etc., can solve the problems of profile space deflection, distortion in cross-section, and inability to effectively control, to prevent space deflection, The effect of preventing cross-sectional distortion and strong support

Active Publication Date: 2017-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem that the existing profile bending forming method cannot effectively control the various parts of the open-section asymmetrical profile during bending forming, resulting in the in-plane distortion of the cross section and the space deflection of the profile after bending. A Bending Method for Asymmetric Profiles with Open Sections

Method used

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  • A Bending Method for Asymmetric Profiles with Open Sections
  • A Bending Method for Asymmetric Profiles with Open Sections
  • A Bending Method for Asymmetric Profiles with Open Sections

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specific Embodiment approach 1

[0018] Specific implementation mode one: combine Figure 1-Figure 6 To illustrate, the bending forming method of an asymmetric profile with an open cross-section in this embodiment is realized according to the following steps:

[0019] Step 1: Cutting the asymmetric profile 3 with an open cross-section, and filling the opening between the positions where the asymmetric profile 3 with an open cross-section is to be bent, with several rigid units 10 as the opening of the asymmetric profile 3 with an open cross-section The internal support body, the rigid unit body 10 is limited by the stopper 11 at the position to be bent, the filled open-section asymmetric profile 3 is placed on the bending mold 2 installed on the base 1, positioned and fixed ;

[0020] Step 2. One of the pressure output mechanisms of the double-acting press presses the open cross-section asymmetric profile 3 against the bending mold 2 through the pressing rod 8 and the pressing block 9;

[0021] Step 3. The ...

specific Embodiment approach 2

[0026] Specific implementation mode two: combination figure 2 and image 3 Note that in step 1 of the present embodiment, the opening direction of the asymmetric profile 3 with an open cross-section faces the force beam 7 and is set in the moving direction of the bending mold 2, that is, the opening direction of the asymmetric profile 3 with an open cross-section faces the force beam 7 Set in the opposite direction to the bending die movement direction.

[0027] This embodiment is for bending and forming an open-section asymmetric profile 3 whose opening direction is parallel to the radial direction of the bending arc. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Specific implementation mode three: combination Figure 4 and Figure 5 Note that in step 1 of this embodiment, the opening direction of the asymmetric profile 3 with open cross-section faces the horizontal direction, that is, the opening direction of the asymmetric profile 3 with open cross-section points to the side of the curved arc. Others are the same as in the first embodiment.

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Abstract

The invention provides a bending molding method for an opening type profile with an asymmetric section and relates to a molding method for the opening type profile to solve the problems that by means of an existing profile bending molding method, all parts cannot be effectively controlled when an opening type profile with the asymmetric section is formed, and consequently internal distortion of the cross section and the space flexure of the bent profile are generated in the bending molding process. The molding method mainly comprises the steps that firstly, the opening type profile with the asymmetric section is cut and filled with rigid units; secondly, one pressure output mechanism of a double-acting press machine is used for pressing the profile to abut against a bending die through a press rod and a pressing block; thirdly, the other pressure output mechanism of the double-acting press machine is connected with a force application cross beam; fourthly, the force application cross beam continues to approach to the bending die under the action of the corresponding pressure output mechanism; and fifthly, the bent molded product is obtained. The bending molding method is used for bending molding of the opening type profile with the asymmetric section.

Description

technical field [0001] The invention relates to a method for forming an open profile, in particular to a method for bending and forming an open section with an asymmetrical profile. Background technique [0002] Environmental pollution and energy crisis are two major problems facing mankind. Airplanes, automobiles and other means of transportation consume huge amounts of energy, and the emissions from airplanes and automobiles will pollute the environment. Reducing the weight of vehicles such as airplanes and automobiles can reduce energy consumption and pollutant emissions, and alleviate the increasingly severe energy crisis. Therefore, in recent years, more and more structures in the fields of aviation, spaceflight and automobile industry have adopted lightweight design. Various profiles are widely used in lightweight structural design. In order to adapt to the requirements of other structures and considerations based on factors such as aerodynamics, the profile needs t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D7/025B21D43/00B21D7/16
Inventor 张坤朱海辉何祝斌王志彪苑世剑
Owner HARBIN INST OF TECH
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