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Error real time online compensation method for precise servo forging press

A compensation method and error compensation technology, applied to the driving device of the forging press, etc., to achieve the effect of improving the forming accuracy

Inactive Publication Date: 2012-05-02
FOSHAN SHUNDE IND & INFORMATION TECHRES CENT
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  • Abstract
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Problems solved by technology

[0004] The technical problem solved by the present invention is that the motor rotation angle can be controlled according to the deformation of the fuselage to perform real-time error compensation, thereby providing a real-time online error compensation method for precision servo forging presses that improves forging precision

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  • Error real time online compensation method for precise servo forging press
  • Error real time online compensation method for precise servo forging press
  • Error real time online compensation method for precise servo forging press

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Embodiment Construction

[0017] The online measurement module of the present invention is composed of a ball grid scale and a pressure strain gauge sensor, and the ball grid scale is installed on the inner side of the fuselage wall, parallel to the moving direction of the working slider. The ball scale is used to measure the real-time position of the working slider and transmit the position information to the controller; two pressure strain gauge sensors are installed in the middle section of the inner side of the press body wall. The installation height is flush with the mold position. The pressure strain gauge converts the deformation of the fuselage under pressure into a voltage value, and transmits the measured value to the controller.

[0018] Such as figure 1 As shown, the ball scale and the pressure strain gauge sensor send the state of the working slider to the controller in real time, and the controller dynamically compensates the servo motor in real time according to the online compensation...

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Abstract

The invention relates to the technical field of control of a precise servo forging press, in particular to an error real time online compensation method for a precise servo forging press. In the invention, a high precision ball grid ruler and a pressure strain gauge sensor are installed on the wall of the body of the forging press. The method comprises the steps of: preparing a real time compensation table by a controller according to the feedback information of the high precision ball grid ruler and the pressure strain gauge sensor and storing the real time compensation table in a memory; automatically measuring a dynamic relation curve of generation pressure and deformation and storing the result in a control system. In the working process, the forging press can retrieve the dynamic compensation in real time to compensate the deformation of the body in the pressure process. The invention effectively solves the problem that the forging press which is pressed to deform affects the forging precision and can be widely applied to the precise servo forging press by half close-loop control.

Description

technical field [0001] The invention relates to the technical field of precision servo forging press control, in particular to an error real-time online compensation method for a precision servo forging press. Background technique [0002] A forging press is a mechanical device used for forming and separating in forging processing. It is mainly used to apply pressure to metal to form it. The forging press mainly includes mechanical structure, electronic components and control algorithm. The control algorithm controls the motor to drive the movement of the mechanical structure and detects the electronic components through the output signal, which is the key to the forging effect. [0003] At present, for the control of forging presses with a nonlinear relationship between the servo motor rotation angle and the displacement of the working slider, it is difficult to implement a full-closed-loop control scheme, and the nonlinear relationship will lead to system instability. Ther...

Claims

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Application Information

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IPC IPC(8): B21J9/20
Inventor 陈冰冰陈晶
Owner FOSHAN SHUNDE IND & INFORMATION TECHRES CENT
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