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Discrete flexible die

A flexible die and punch technology, which is applied to the field of rapid forming of curved sheet metal, can solve the problems of uneven sheet surface and reduced forming accuracy of parts, and achieve the effects of simple and practical method, fast shape adjustment speed and low construction cost.

Active Publication Date: 2014-04-30
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deformation of polyurethane will lead to a significant drop in the forming accuracy of the part. When the forming load is large, there may be unevenness on the surface of the plate

Method used

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  • Discrete flexible die
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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] refer to figure 1 , a discrete flexible mold, including two parts, the upper discrete mold 2 and the lower discrete mold 3, the upper discrete mold 2 is connected with the upper slide 1 of the press, the lower discrete mold 3 is combined with the base 4 of the press, and the upper discrete mold 2 It does not contain electric push rod 5 and is light in weight, so it is placed on the upper part and is easy to move. The lower discrete mold 3 contains electric push rod 5 and is heavy in weight.

[0039] refer to figure 2 and image 3 , the lower discrete mold 3 includes a lower mold support 12, a first hydraulic tensioner 8 is installed in the round hole of the top support plate of the lower mold support 12, and the first hydraulic tensioner 8 passes through its inner sleeve 8-4 The outer flange is fixed on the lower mold support 12, the oil supply of the firs...

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Abstract

Disclosed is a discrete flexible die. An upper discrete die is connected with an upper sider of a press, a lower discrete die is combined with a base of the press and comprises a lower die support, a top supporting plate of the lower die support is assembled with hydraulic tensioning sleeves, oil supply of each hydraulic tensioning sleeves is realized through an oil pipe, a piezometer is mounted at the tail end of each row of the oil pipes, a punch is inserted into a middle round hole of each hydraulic tensioning sleeve, and an electric push rod is mounted below each punch; the upper discrete die comprises an upper die support, hydraulic tensioning sleeves are mounted on a middle supporting plate of the upper die support, oil supply of each hydraulic tensioning sleeve is realized through an oil pipe, and a piezometer is mounted at the tail end of each row of the oil pipes. Shape adjusting is realized by adopting the electric push rods controlled by a circuit, and the die punches are locked through the hydraulic tensioning sleeves after shape adjusting is completed; the punches is high in bearing capacity, thereby being capable of used for plate forming and part supporting; the whole discrete flexible die is simple in structure and low in manufacturing cost; two implementable schemes are provided for curved surface continuation after forming, and the discrete flexible die is high in efficiency, low in cost and free of environmental pollution.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping dies for curved plates, in particular to a discrete flexible die. Background technique [0002] Flexible manufacturing is the development trend of the processing industry, among which "dieless multi-point forming technology" is an advanced manufacturing technology that combines flexible forming technology and computer technology, and is a new technology for digital forming of three-dimensional curved surfaces of sheet metal. This technology can be used for high-efficiency and rapid prototyping of plate parts in industries such as aerospace, aviation, automobiles, ships, construction machinery, decorative exterior walls, steel structure sculptures, etc. It can effectively shorten the new product development cycle and reduce product manufacturing costs to adapt to its small batch , multi-variety and personalized products; on the other hand, for the measurement and storage of thin-walled pa...

Claims

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Application Information

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IPC IPC(8): B21D37/02
Inventor 张琦王阔庄健张童童靳凯强贲宁宇张大伟赵升吨
Owner XI AN JIAOTONG UNIV
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