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Forming condition determination method and forming condition determination system

A forming condition and stamping forming technology, applied in the field of forming condition determination and forming condition determination system, which can solve the problems of a lot of time, multi-material and cost, etc.

Inactive Publication Date: 2012-02-15
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for example, when determining the combination of forming speed and preventing pressure, if the forming speed is determined based on the experience of the operator as described above, there is a possibility that a lot of time, more materials and costs are required.

Method used

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  • Forming condition determination method and forming condition determination system
  • Forming condition determination method and forming condition determination system
  • Forming condition determination method and forming condition determination system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0089] figure 1 It is a schematic diagram showing the structure of the press machine 110 according to the first embodiment of the present invention.

[0090] The punching machine 110 includes: a lower die mechanism 120 having a lower die 152 disposed on the lower side of the steel plate 112; an upper die mechanism 118 for making the upper die 138 approach or move away from the lower die 152; The control unit 116 that controls the mechanism 118 .

[0091] The upper die mechanism 118 includes: a servo motor 124; a rotary plate 128 rotationally driven by the servo motor 124 via a reduction gear not shown;

[0092] The servo motor 124 is, for example, an AC type that has high responsiveness and small torque deviation. The shaft rotational position of the servo motor 124 is detected by an encoder (not shown), and the servo motor is feedback-controlled based on the detected shaft rotational position.

[0093] The upper die mechanism 118 further includes: a slider 132 pivotally su...

no. 2 approach

[0146] Figure 10 It is a figure which shows the schematic structure of the molding condition determination system 201 which concerns on the 2nd Embodiment of this invention. The molding condition determination system 201 includes an arithmetic processing device 210 connected to a press machine 230 to execute various programs, and an input unit 220 for inputting information into the arithmetic processing device 210 .

[0147] The press machine 230 is a servo press machine driven by a servo, and the forming condition determination system 201 outputs the press forming conditions including forming speed and crease prevention pressure to the press machine 230 .

[0148] The molding condition determination system 201 includes a molding condition optimization unit 211 and a press control data generation unit 214 which are programs deployed on an OS (Operating System Operating System) for operation control.

[0149] The forming condition optimization unit 211 includes a wrinkle prev...

no. 3 approach

[0250] Figure 32 It is a figure which shows the schematic structure of the molding-condition determination system 301 which concerns on the 3rd embodiment of this invention. The forming condition determination system 301 includes a processing device 310 connected to a press machine 330 to execute various programs, and a storage device 320 such as a hard disk for storing information.

[0251] The punching machine 330 is a servo-driven servo punching machine, and the forming condition determination system 301 outputs to the punching machine 330 punching forming conditions including sliding speed and die buffer pressure.

[0252]The molding condition determination system 301 includes a molding condition optimization unit 311 , a molding simulation unit 312 , and a press control data generation unit 313 , which are programs deployed on an OS (Operating System Operating System) for operation control.

[0253] The molding simulation unit 312 performs simulation analysis of molding...

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Abstract

The present invention provides a forming speed determination method capable of appropriately and quickly determining the forming speed of a press working device. Method of Determining Forming Speed ​​for Determining the Forming Speed ​​of a Press Working Device A plurality of measurement points are provided on a sheet material, and the sheet material is press-formed at a predetermined forming speed by a press processing device. Next, strain states (points Q1 to QN) at each measurement point of the press-formed sheet material are plotted on a forming limit line diagram including the forming limit line FL of the sheet material to create a strain distribution diagram. Next, among the points (Q1 to QN) drawn on the strain distribution diagram, the point closest to the forming limit line FL is taken as a specific measurement point, and when the specific measurement point is located in the overhanging region (ε2 > 0), the press working device The forming speed is slower than the predetermined forming speed, and the forming speed of the press working device is made faster than the predetermined forming speed when the specific measurement point is located in the drawing region (ε2≤0).

Description

technical field [0001] The present invention relates to a forming condition determination method and a forming condition determination system for determining forming conditions of a press machine. Background technique [0002] Conventionally, it is known that in press working, the forming speed has a great influence on the quality of formed parts. Therefore, a pressing method and a pressing apparatus have been proposed which control the forming speed to prevent cracks, wrinkles, dimensional defects, etc. occurring in the formed product (for example, refer to Patent Document 1). According to the method and the press apparatus disclosed in this patent document 1, the forming speed is controlled so that the ratio of the movement amount of the upper die to the inflow amount of the material falls within a predetermined appropriate range. [0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-125355. [0004] However, a molded product having a complex shape ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/00
Inventor 永井裕一回秀夫
Owner HONDA MOTOR CO LTD
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