Sheet material mold-free multi-point forming device based on viscous medium transfer force and method

A viscous medium, moldless multi-point technology, applied in the field of sheet metal forming, can solve the problems that it is difficult to exert the maximum forming limit of the material, the surface quality of the workpiece cannot be guaranteed, and the sheet metal deformation cannot be processed, so as to save mold design and workpiece Surface quality assurance, good product quality effect

Inactive Publication Date: 2006-11-22
重庆工学院
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Problems solved by technology

It uses a hard mold to transmit force, it is difficult to exert the maximum forming limit of the material, there are problems that cracks are easily generated on the surface, and the surface quality of the workpiece cannot be guaranteed
Chinese patent 00115996.8 "Numerical Control Dieless Forming Machine for Plates" discloses a

Method used

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  • Sheet material mold-free multi-point forming device based on viscous medium transfer force and method
  • Sheet material mold-free multi-point forming device based on viscous medium transfer force and method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0030] see figure 1As shown, a sheet metal dieless multi-point forming device based on viscous medium force transmission consists of a base 1, a lower control cylinder 3, an electro-hydraulic proportional overflow valve 2, a die bottom plate 7, a die 9, and a blank holder 11 , Crimping cylinder 12, upper template 13, motor support 14, stepping motor 15, bearing 16, support frame 17, position adjustment screw 18, punch fixing plate 19, telescopic sleeve 20, stamping head 21, upper control cylinder 22 The sheet material 10 is pressed between the die 9 and the blank holder 11, the die 9 and the base plate 7 of the die form the lower cavity, which accommodates the viscous medium 6 and provides back pressure; during the forming process, the medium passes through the base plate of the die The upper discharge hole is discharged; (the plug 8 is set to block...

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Abstract

The invention relates to a sheet multipoint molding device and relative method, based on adhesive medium force transmission. Wherein, the lower die cavity is formed by concave mould and the bottom plate of concave mould; the bottom of concave mould has the discharge hole of adhesive medium, which is connected to the cylinder via the channel inside the bottom plate; the fixing compress device is formed by the upper mould, motor, mounting element, convex mounting plate and the punch head connected to the flexible sheath; the flanging ring, convex mould fixing plate, flexible sheath and the punch head form the upper die chamber; the sheet compress device is formed by the upper edge of concave mould and the flanging ring. The invention uses adhesive medium with uniform force transmission, to reduce the producing period, the producing cost, avoid the surface crack caused by rigid mould, while the thickness is uniform.

Description

technical field [0001] The invention belongs to sheet material forming technology, in particular to a soft mold or moldless flexible forming method for sheet material, in particular to a device and method for sheet material non-die multi-point forming based on viscous medium force transmission. Background technique [0002] Sheet metal forming technology is widely used in national economic sectors such as automobiles, electrical appliances, ships, aerospace, weapons, etc. With the rapid development of computer technology and the change of the earth's environment, the traditional manufacturing technology is challenged, how to process products that meet market demand at low cost, quickly and with high quality determines the success or failure in the international economic competition. For this reason, in the field of plate processing, the flexible processing technology that adapts to market changes and the intelligent processing technology that controls the stamping process in...

Claims

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Application Information

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IPC IPC(8): B21D22/22B21D26/021B21D37/10G05B15/02G05B19/4097
Inventor 胡建军许洪斌夏华金艳王祥
Owner 重庆工学院
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