Panel veneer liquid filling and drawing forming method based on parallel mechanism
A technology of liquid-filled deep drawing and parallel connection, which is applied in the field of sheet metal forming processing, can solve the problems of inaccessibility and limitation of the forming range of sheet metal stamping parts, so as to improve the forming performance, realize uneven deformation, and improve the drawing performance Effect
Active Publication Date: 2017-03-22
南京矢量成形机电科技有限公司
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Problems solved by technology
The die can only move in a straight line, which limits the forming range of sheet metal stamping parts. For example, for some typical parts such as elbows, if the die moves in a straight line, it cannot enter the die, and ordinary stamping and fluid filling Such parts cannot be formed by deep drawing
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[0019] The specific steps of a liquid-filled deep drawing method for sheet metal based on a parallel mechanism provided by the present invention are as follows:
[0020] (1) Connect the punch with the parallel mechanism, and the stroke and space attitude of the punch are realized and controlled by the parallel mechanism. The parallel mechanism is connected with the punch through a beam 7, and the beam 7 is fixedly connected to the punch.
[0021] The parallel mechanism includes a first slider 1, a second slider 6, a first guide rail 2, a second guide rail 5, a redundant drive shaft 3, a drive shaft 4, a first pull rod 12 and a second pull rod 13; A slider 1 and the second slider 6 are symmetrically arranged on both sides of the punch, the first slider 1 is arranged on the first guide rail 2, and the second slider 6 is arranged on the On the second guide rail 5; both ends of the redundant drive shaft 3 are respectively connected to the first slider 1 and the beam 7, and both e...
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The invention discloses a panel veneer liquid filling and drawing forming method based on a parallel mechanism, and belongs to the technical field of panel veneer hydraulic machining. According to the method, hydraulic forming is conducted on the basis of the parallel mechanism, a male die is connected to the parallel mechanism, and the space posture of the male die is controlled through the parallel mechanism; in the male die descending and withdrawing process, the space posture can be changed, and therefore forming of complex components can be achieved; the panel veneer transformation path is changed and optimized by optimizing the descending space path and posture of the male die, and the panel veneer liquid filling and drawing performance is further improved. By means of the method, liquid filling and drawing of some shell components difficultly subjected to withdrawing become possible; in addition, in the method, male die feeding is achieved through constant transformation of the male die space postures, accordingly, the panel veneer strain path is changed, and the panel veneer forming performance can be further improved by optimizing the strain path.
Description
[0001] Technical field: [0002] The invention belongs to the technical field of sheet metal forming and processing, and in particular relates to a liquid-filled deep drawing method for sheet metal based on a parallel mechanism. The invention realizes the movement of the punch by gradually changing the spatial state of the punch, can realize the forming of complex spatial shapes, and can further improve the forming performance of the sheet material by optimizing the strain path. [0003] Background technique: [0004] Sheet metal liquid-filled deep drawing is a new type of sheet metal flexible processing method. It uses high-pressure liquid to replace the die, and uses the soft die to realize the flexible forming of the sheet metal. The drawing direction of the traditional liquid-filled deep drawing is the same as that of the ordinary deep drawing, that is, the movement direction of the die is a straight line. The die can only move in a straight line, which limits the forming ...
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IPC IPC(8): B21D26/021B21D26/025
CPCB21D26/021B21D26/025
Inventor 王会廷沈晓辉曹杰潘洪波章静
Owner 南京矢量成形机电科技有限公司