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Multiclamp type stretch forming machine

A stretch forming, clamp-type technology, applied in the field of mechanical engineering, can solve the problems of reduced material utilization rate, uneven distribution of tensile stress and tensile strain of the sheet, and non-molding, and achieve uniform distribution of tensile stress and tensile strain. , Improve the material utilization rate and forming quality, the effect of good workpiece forming effect

Active Publication Date: 2011-01-19
长春瑞光科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the traditional stretch forming machine draws the workpiece, generally only one to two hydraulic cylinders are used to generate the stretching action, and the plate at the jaws basically moves along the transverse direction; when forming a workpiece with a large transverse curvature, the transverse tensile stress of the plate and The distribution of tensile strain is obviously uneven, and it is easy to produce forming defects such as non-mold, cracking or wrinkling
In order to prevent these defects, the control accuracy of the equipment is very high, the design of the control system is complicated, and the equipment is expensive; moreover, the blanks for drawing often require a large process margin, which leads to a reduction in the utilization rate of materials

Method used

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Embodiment Construction

[0023] The specific content and working process of the present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0024] The multi-clamp stretch forming machine of the present invention is mainly composed of a clamping mechanism 1, a pulling mechanism 2 and a frame 3; a row of multiple clamping mechanisms 1 are respectively arranged on both sides of the frame 3, and each clamping mechanism The mechanism 1 is respectively provided with a lower connecting hole 4 and a rear connecting hole 5, and each connecting hole is connected with the pulling mechanism 2 through a pin shaft or a universal joint. When the pulling mechanism 2 connected with the clamping mechanism adopts three hydraulic cylinders, the lower connection hole 4 of the clamping mechanism 1 is connected with the vertically arranged pulling mechanism 2 through a universal joint; the rear part of the clamping mechanism 1 The connecting hole 5 is connected...

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Abstract

The invention discloses a multiclamp type stretch forming machine and relates to plastic processing equipment for curve forming of plates, belonging to the field of mechanical engineering. The machine mainly comprises clamping mechanisms (1), a stretching mechanism (2) and a stand (3), wherein a row of clamping mechanisms (1) are respectively distributed at both sides of the stand (3); each clamping mechanisms (1) is provided with a lower connecting hole (4) and a rear connecting hole (5); and all the connecting holes are respectively connected with the stretching mechanism (2) by pin shafts or cardan joints. The machine can realize the flexible control of a plurality of clamps, ensure that a workpiece is more easily attached to a die in the stretching process, obviously improve the material utilization ratio of the workpiece and obtain higher workpiece forming effect.

Description

technical field [0001] The multi-clamp stretch forming machine of the present invention relates to a plastic processing device for forming curved surfaces of plate parts, belonging to the field of mechanical engineering. Background technique [0002] When the traditional stretch forming machine draws the workpiece, generally only one to two hydraulic cylinders are used to generate the stretching action, and the plate at the jaws basically moves along the transverse direction; when forming a workpiece with a large transverse curvature, the transverse tensile stress of the plate and The distribution of tensile strain is obviously uneven, and it is easy to produce forming defects such as non-mold, cracking or wrinkling. In order to prevent these defects, the control accuracy of the equipment is very high, the design of the control system is complicated, and the equipment is expensive; moreover, the blanks for drawing often require a large process margin, which leads to a decrea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/22
Inventor 李明哲韩奇钢冯朋晓付文智邓玉山
Owner 长春瑞光科技有限公司
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