Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Limited control set-based sensorless press machine full-closed-loop control system and method

A technology with limited control set and control method, applied in the direction of presses, manufacturing tools, etc., can solve the problems of poor dynamic performance, reduced reliability and stability, broken formed workpieces, etc., to improve anti-interference performance, improve dynamic performance, The effect of improving reliability

Pending Publication Date: 2020-01-14
JINING KELI PHOTOELECTRIC IND CO LTD +1
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of the above three aspects will make the slider unable to be controlled to a given position in the shortest time or within a reasonable time, the dynamic performance is poor, and overshooting may occur during the position control process (if the slider position exceeds Adjustment, indicating that the position set by the user is exceeded, there may be cracks and wrinkles of the formed workpiece), and because the signal of the motor position sensor is sometimes affected by interference or sensor failure, the reliability and stability of the system are greatly reduced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Limited control set-based sensorless press machine full-closed-loop control system and method
  • Limited control set-based sensorless press machine full-closed-loop control system and method
  • Limited control set-based sensorless press machine full-closed-loop control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The specific embodiments of the present invention are given below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all belong to the protection scope of the present invention.

[0035] The sensorless full-closed-loop control system of the press based on the finite control set of the present invention includes a servo press, and the complete machine electric control system 1 of the servo press is the control core of the entire system, which can control and signal the logic unit of the press. deal with. The whole machine electric control system 1 is connected with the human-computer interaction platform 2, and the human-computer interaction platform 2 can input the key points of the process curve, and transmit them to the whole machine electric control system 1 of the servo press, and display the key state inform...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of control technology and metal forming, and particularly relates to a limited control set-based sensorless press machine full-closed-loop control system and method. According to the system and method, the difference between a forming process curve and the actual position of a sliding block is used as a whole machine control system control instruction position input, a kinetic model is established, torque calculation is carried out, and the calculated result is taken as an input of a torque prediction control algorithm. The system and method have the advantages that a non-sensing control algorithm module and a torque prediction algorithm module of a limited control set are arranged in a servo motor driver, the rotating speed and the electromagnetic torque prediction value are calculated, the value function is finally obtained, the position information of the sliding block can be added into the value function to control the position of the sliding block to not be overly controlled, the dynamic performance is obviously improved, the anti-interference performance of the motor servo driver can be improved, the reliability is remarkably improved, and the cost of a servo motor is greatly reduced.

Description

technical field [0001] The invention belongs to the field of control technology and metal forming technology, and in particular relates to a sensorless full-closed-loop control system and method for a press based on a finite control set. Background technique [0002] The slider position control method of the servo press includes three methods, which are open-loop, semi-closed-loop and fully-closed-loop. Open loop is a position closed-loop control method that does not use any servo press; semi-closed loop is a position closed-loop control method other than sliders; full-closed loop is a position control method that uses slider feedback closed-loop. The servo motor of the servo press replaces the ordinary induction motor, and uses a direct drive or a one-stage or two-stage reduction mechanism to drive the crank or connecting rod mechanism, cancels the brake and clutch, and the final actuator is still a slider. The reference "Development of the Latest Servo Press and Future Tr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/26
CPCB30B15/26
Inventor 李琦高建波关胜王启武贾中青李海明马玉慧
Owner JINING KELI PHOTOELECTRIC IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products