Pure bending age forming die

A technology of aging forming and pure bending, which is applied in the field of mechanical processing and can solve the problems that the pure bending loading of test pieces cannot be realized.

Inactive Publication Date: 2009-09-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the fact that the existing tooling cannot realize pure bending loading on the test piece and simplify the complexity of sheet metal bending, the present invention proposes a pure bending aging forming die

Method used

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Examples

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Embodiment Construction

[0018] This embodiment is used for (500 × 50 × 5) mm thick plate pure bending aging forming die (attached figure 1 ), the present embodiment is a combination structure of four-point bending and frame plate structure, including base plate 12, pressure block 5, upper frame plate 6, lower frame plate 7, shape plate 8, worm screw 3, lead screw 1, pressure plate 2 And worm gear baffle 10, wherein:

[0019] One piece of base plate 12 is rectangular, and the periphery around the upper surface of this plate is provided with through groove 16. The lower frame plate 7 has four pieces, all of which are rectangular strips, whose thickness is the same as the width of the bottom plate through groove 16, embedded in the bottom plate through groove 16, and fixed by bolt holes positioned in the bottom plate through groove; The square surrounded by the lower frame plates 7 constitutes the mold cavity; the four lower frame plates 7 are fixedly connected to each other by bolts at four corners. ...

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Abstract

The invention discloses a pure bending age forming die, being a combination structure which combines four-point bending and a frame plate structure together and comprising a base plate (12), frame plates (6, 7), a pressing plate (2), a pressing block (5) and form plates (8); a lead screw seat (11) is fixed on an upper frame plate (6) at the two sides of a cavity; a worm (3) is installed on a supporting base (4); the two ends of the pressing plate (2) are provided with lead screw holes (17); a pair of pressing block slots (14) distributed symmetrically are arranged at the inner side of the lead screw holes and on the central line of the pressing plate; the pressing block (5) is fixed in the pressing block slots; a baffle supporting rod (15) is connected with the pressing plate (2); a turbine baffle (10) is fixedly connected with the baffle supporting rod (15); and two forming plates (8) are arranged in the cavity of the die, and the curvature of the upper surface thereof is determined according to the curvature requirement of a test piece. The invention uses a design way in which the distance between the forming plates is adjustable, is applicable to the pure bending load of the test piece, and has the advantages of simple structure and easy operation; in addition, the test piece still takes a round shape after rebounding.

Description

1. Technical field [0001] The invention relates to the field of mechanical processing, and is a pure bending aging forming die. 2. Background technology [0002] Age forming (Age Forming), usually called aging stress relaxation forming in China, and called creep age forming (Creep Age-forming, CAF) abroad. [0003] A typical aging forming process mainly uses the stress relaxation characteristics of alloy materials at high temperatures to apply a certain initial deformation to the workpiece, maintain the deformation of the workpiece through an external load, and let it stand for a period of time at a constant temperature. The internal stress level of the material increases with time. And reduce, part of the elastic strain into plastic strain, so as to achieve the purpose of forming. [0004] In the utility model patent with the patent number of 2007200315844, an autoclave aging forming mold is disclosed, which realizes the integral forming of ribbed / flange variable thickness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10C21D8/00
Inventor 甘忠张志国成武东熊威
Owner NORTHWESTERN POLYTECHNICAL UNIV
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