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Integrated forming device and forming method for double-sided complex rib feature structural parts

A technology for rib features and structural parts, which is applied in the field of integrated forming devices for double-sided complex rib feature structural parts, can solve problems such as cracks, cracks in inner ribs, and inability to unscrew double-sided belts, and achieves volume and land occupation. The effect of small area, low manufacturing and maintenance cost, and reduced difficulty in demolding

Active Publication Date: 2019-11-08
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the formation of vertical and horizontal inner ribs, the flow law of the metal in the blank deformation zone will no longer be equal to the strong spinning forming of ordinary cylindrical parts, making the deformation mechanism of the forming process more complicated, and the influence of the corresponding process parameters on the strong spinning It will change accordingly, and cannot be selected according to the strong spinning law of ordinary cylindrical parts; in addition, in the process of strong spinning, cracks and cracks are prone to occur, and in the process of multi-pass forming spinning, the first pass The first forming effect is good, but there are cracks in the subsequent forming; in addition, when the forming needs to be withdrawn, the internal ribs at the end of the workpiece are prone to cracks, and the installation and disassembly of the core mold is cumbersome; the strong spinning technology cannot be unscrewed Structural members with complex rib features on both sides

Method used

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  • Integrated forming device and forming method for double-sided complex rib feature structural parts
  • Integrated forming device and forming method for double-sided complex rib feature structural parts
  • Integrated forming device and forming method for double-sided complex rib feature structural parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, it is the first loading method of this embodiment. The frame 1 used to fix the roller forming device 2, the support roller 5 and the hydraulic device 3 is divided into two parts, front and rear, wherein: the middle of the front frame is provided for loading and unloading roller forming. Circular hole for device 2.

[0033] At the beginning of the test, it is necessary to set the assembled drum forming device 2 at a fixed position on the frame 1 to complete the pre-positioning of the drum forming device 2, so that the backup roll 5 and the working roll 4 can reach through the hydraulic feeding device 3 The initial processing position, and restrict the axial movement of the roller forming device 2, to ensure that only the inner mold 15 is fed radially during processing.

[0034] After the drum forming device 2 is installed, push the connecting device 6 through the hydraulic system, so that the support roller 5 slowly approaches the drum forming...

Embodiment 2

[0038] Such as figure 2 As shown, it is the second loading method of this embodiment. The mold base 11 is set on the working table of the press, and then the wedge block 8, the lower pressing block 9 and the slider 10 are connected by the bolts shown in the figure, and then the The assembled structure is set on the mold base 11, and then the roller forming device 2 is set on the mold base 11, and the inner wall of the roller forming device 2 is closely matched with the lower pressing block 9, and finally the lower pressing shaft 7 is pressed down with the pressing machine. The mechanism is connected, and the pressing speed and pressing pressure of the lower pressing shaft 7 are set to 1mm / min and 300KN respectively through the press. During the traveling process of the lower pressing shaft 7, radial displacement and pressure will be generated on the wedge block 8, pushing the slider at the bottom 10 and the lower pressing block 9 are fed radially to realize the loading on the...

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Abstract

The invention provides an integrated forming device for a structural part with double-sided complex rib features. The integrated forming device comprises a machine frame, a roller forming device and asupporting mechanism, wherein the roller forming device is rotationally arranged on the machine frame, and the supporting mechanism is arranged in the roller forming device. The integrated forming device is provided with an outer mold used for forming complex ribs of the outer surface of a cylindrical part and an inner mold used for forming complex ribs of the inner surface of the cylindrical part, wherein the inner surface of the outer mold has complex rib features, and the outer surface of the inner mold has complex rib features; and the forming of the cylindrical structural part can be realized through two different loading modes.

Description

technical field [0001] The invention relates to a technology in the field of metal forming, in particular to an integrated forming device for structural parts with complex ribs on both sides. Background technique [0002] The existing powerful spinning technology replaces the ordinary mandrel of the spinning machine with a mandrel with vertical and horizontal inner ribs, and through the strong spinning forming process, the metal in the deformation zone of the blank flows to the position of the longitudinal and transverse ribs, thereby forming a round shape. Vertical and horizontal ribs on the inner wall of the cylinder blank. Due to the formation of vertical and horizontal inner ribs, the flow law of the metal in the deformation zone of the blank will no longer be equal to the strong spinning forming of ordinary cylindrical parts, making the deformation mechanism of the forming process more complicated, and the influence of the corresponding process parameters on the strong ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/16
CPCB21D22/16
Inventor 何霁李淑慧赵亦希于忠奇
Owner SHANGHAI JIAOTONG UNIV
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