Double-lateral extension forming device and forming method for irregular curved surface part

A curved part, double lateral technology, applied in the field of sheet metal processing, can solve the problems of increasing the processing cost and production cycle of parts, increasing the risk of unqualified parts, and being unable to form at one time, so as to shorten the production cycle, easy to operate and realize, The effect of reducing production costs

Active Publication Date: 2021-04-23
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The forming features on some parts are limited by the orientation and shape, so they cannot be formed at one time. The parts can only be split and formed separately, and then welded as a whole, and formed but welded separately The requirements are high, the risk of unqualified parts increases, and the processing cost and production cycle of the parts are increased at the same time

Method used

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  • Double-lateral extension forming device and forming method for irregular curved surface part
  • Double-lateral extension forming device and forming method for irregular curved surface part
  • Double-lateral extension forming device and forming method for irregular curved surface part

Examples

Experimental program
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Effect test

Embodiment 1

[0074]According to a particular embodiment of the present invention, a bilaterally directed molding method is disclosed, and the forming apparatus of the first embodiment is formed, and the positionally asymmetric projection in both sides is formed. The two feature shape is different, and all are Irregular surface circular bumps. The forming method includes the following steps:

[0075]1) The guide post passes through the through hole on the protruding portion 23 of the upper mold 2, and the second compression spring 7 is arranged outside the guide post 5, and one end of the second compression spring 7 is fixed to the forming surface block 3 in which the internal space is formed. At the bottom of -1, the other end abuts against the bottom surface of the protruding portion 23, the nut 6 is sleeved in the portion of the guide post 5 above the protruding portion, and the press forming assembly 3 is hoisted below the upper mold;

[0076]2) Secure the upper mold 2 to the upper platform of the ...

Embodiment 2

[0086]This embodiment is described in detail to the bilateral direction of the irregular curved sheet sheet metal part.

[0087]When the mold is in an open mode,Figure 7-9 As shown, the press forming assembly 3 is hoisted under the upper mold 2 by a guide post 5, the nut 6, and the second compression spring 7 on both sides, and the upper mold 2 is fixed to the upper platform of the hydraulic device by the mold opening 1; The mold 4 is fixed to the lower platform of the hydraulic press.

[0088]At this time, in the press forming assembly 3, the first press clamping mold 3-2 and the second press clamping mold 3-3 are fitted in the through hole of the type surface block 3-1, and the first compression clamp mold 3 The outer surface of the second compressor punch 3-3 cooperates with the through hole surface of the type surface block 3-1, which can be recovered and ejective, such asFigure 9 Indicated.

[0089]The guide screw 3-4 passes through the long round holes on the first compression clamping...

Embodiment 3

[0096]In still another embodiment of the present invention, an extension forming apparatus is disclosed, and the apparatus is used for two lateral extensions of the unregulated curved surface of the above-described embodiment, specifically a irregular surface having a forming feature of the bilateral feature. Sheet metal parts.

[0097]The material of the sheet metal part is 1 cr18 ni9Ti, a wall thickness of 0.8 mm, and its shape size is likefigure 1 As shown, the part is integrally irregular convergence surface, the head depth is 170mm, the opening width is 130mm, the end depth is 130mm, and the opening is 100 mm. There is a non-symmetrical projection on both sides of the part. The two feature shapes are different, all of which are irregular curved circular projections, and the highest point is 15 mm from the surface.figure 2 For the partial architectural diagram of the parts process, the irregular surface has been completed by the mold extension, and the bilateral features are formed...

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Abstract

The invention relates to a double-lateral extension forming device and forming method for an irregular curved surface part, belongs to the technical field of sheet metal machining, and solves the problems that in the prior art, an irregular complex-surface thin-wall component cannot be formed at a time, the requirement for welding is high, the machining cost of the part is high, the production period is long, and die releasing is difficult. The extension forming device comprises an upper die, a lower die and a pressing forming assembly, wherein the upper die extends and forms a to-be-formed process workpiece in a lower die cavity through the pressing forming assembly; the pressing forming assembly comprises a molded surface pressing block, a protrusion pressing male die and a plurality of first elastic components, wherein the protrusion pressing male die is assembled in a through hole of the molded surface pressing block and is fixed to the molded surface pressing block, the outer molded surface of the protrusion pressing male die is matched with the molded surface of the through hole of the molded surface pressing block, one end of each first elastic component is fixed to the molded surface pressing block, and the other end of each first elastic component is fixed to the protrusion pressing male die. By means of the device and method, double-lateral extension forming of the irregular curved surface part is achieved at one time.

Description

Technical field[0001]The present invention relates to the field of sheet metal processing, and more particularly to a bilateral extension forming apparatus and a forming method of an irregular curved part.Background technique[0002]At present, the aviation product parts are lightweight, complicated, and integrally developed, and more and more irregular complex face-walled members are increasing.[0003]The forming feature on some parts is limited by the orientation, and cannot be formed once. After the parts are split, the part is re-welded, and the shape is highly welded, and the part is not qualified, and the part is processed. Cost and production cycle.Inventive content[0004]In view of the above analysis, the present invention is intended to provide a bilateral extension forming apparatus and a forming method of irregular curved parts, at least one of the following technical problems: (1) irregular complex surface thin-walled members cannot be formed once (2) High welding requiremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/22B21D37/10B21D37/04B21D37/14B21D37/12B21D43/00
CPCB21D22/22B21D37/10B21D37/04B21D37/14B21D37/12B21D43/003
Inventor 李妍华王猛团刘玉平俞川
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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