CN202217162U

CN202217162U - Servo positioner electric control system

Info

Publication number: CN202217162U
Application number: CN2011202915308U
Authority: CN
Inventors: 唐君才; 汪春华; 莫景华
Original assignee: ZHUHAI GOOD WEILDING AUTOMATIC EQUIPMENT CO Ltd
Current assignee: ZHUHAI RUILING WELDING AUTOMATION CO., LTD.
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-05-09
Anticipated expiration: 2021-08-11

Abstract

The utility model discloses a servo positioner electric control system, which comprises a robot control center, a programmable logic controller and a controlled mechanical device, wherein the robot control center emits switching value signals to the programmable logic controller and receives switching value signals sent back by the programmable logic controller, and the controlled mechanical device is connected with a servomotor which drives the controlled mechanical device to operate; the programmable logic controller is connected with a servomotor driver, and the servomotor driver controls rotation of the servomotor, receives digital signals emitted by the programmable logic controller, and drives the servomotor to rotate.

Description

Servo positioner electric-control system

[technical field]

The utility model relates to the application of pneumatic turntable in the robotization electric-control system, relates in particular to the servo positioner electric-control system of pneumatic turntable electrical equipment control.

[background technology]

The electric-control system of present welding gear, turntable adopts step motor control mostly, because stepper motor is open loop control; Start the too high or excessive phenomenon of losing step or stall that is prone to of load of frequency, the too high phenomenon that is prone to overshoot of rotating speed when stopping, and the step angle of stepper motor is generally 3.6 ° or 1.8 °; Control accuracy is poor, and speed responsive is slow, when low speed, is prone to the low-frequency vibration phenomenon; In rotating process; Output torque raises with rotating speed and descends, and when higher rotation speed, can sharply descend, and does not have overload capacity.

[utility model content]

The utility model provides a kind of turntable location accurately high, fast and stable, convenient, the safe and reliable servo positioner electric-control system of control in the turntable work.

The technical scheme that the utility model adopts is:

Servo positioner electric-control system; Comprise control center of robot, Programmable Logic Controller and controlled mechanical hook-up; Control center of robot transmit button amount signal is to Programmable Logic Controller and receive the switching value signal that Programmable Logic Controller feeds back, and controlled mechanical hook-up is connected with the servomotor that drives its action; Said Programmable Logic Controller is connected with motor servo driver, the rotation of motor servo driver control servomotor, and motor servo driver receives the digital signal of Programmable Logic Controller transmission and exports control signal and give servomotor, drives servomotor and rotates.

Said Programmable Logic Controller also is connected with mutual feedback and receives the man-machine interface of signal.

Said man-machine interface comprises turntable rotational parameters setting module and equipment operation and failure message module.

Control center of said robot also is connected with according to the control program of control center of the robot robot arm by the certain track operation.

The beneficial effect of the utility model is:

The servo positioner electric-control system of the utility model can with the supporting use of automatic welding equipment, the action of control center of robot major control welding gear and robot arm, the rotation of the turntable PLC programmed control motor servo driver through Programmable Logic Controller; And rotate by the driven by servomotor turntable; Through the touch-screen of man-machine interface, at turntable rotational parameters setting module the turntable rotational parameters is provided with during work, control table servo motor rotates; Because servomotor adopts closed-loop control; Calculate the angle of rotation through ratio of gear,, make motor servo driver directly to sample the motor encoder feedback signal through Programmable Logic Controller establishment anglec of rotation program; The general phenomenon of losing step or overshoot that stepper motor can not occur; Control performance is more reliable, control accuracy is high, and speed responsive is fast, even when low speed, also oscillation phenomenon can not occur.

[description of drawings]

Fig. 1 is the utility model electric-control system fundamental diagram.

[embodiment]

As shown in Figure 1; A kind of servo positioner electric-control system; Comprise control center of robot 1, Programmable Logic Controller 2 and controlled mechanical hook-up 3; Control center of robot 1 transmit button amount signal is to Programmable Logic Controller 2 and receive the switching value signal that Programmable Logic Controller 2 feeds back, and controlled mechanical hook-up 3 is connected with the servomotor 4 that drives its action; Said Programmable Logic Controller 2 is connected with motor servo driver 5; The rotation of motor servo driver 5 control servomotors 4; Motor servo driver 5 receives the digital signal of Programmable Logic Controller 2 transmissions and exports control signal and give servomotor 4, drives servomotor 4 and rotates.

Programmable Logic Controller 2 also is connected with mutual feedback and receives the man-machine interface 6 of signal, and man-machine interface comprises turntable rotational parameters setting module and equipment operation and failure message module, is used for the initialization system parameter, shows system's operation and failure message.

Control center of said robot also is connected with according to the control program of control center of the robot robot arm by the certain track operation, so as with controlled mechanical hook-up 3 interlocks.

This servo positioner electric-control system can with the supporting use of automatic welding equipment; The action of control center of robot 1 major control welding gear and robot arm; The PLC programmed control motor servo driver 5 of Programmable Logic Controller 2 is passed through in the rotation of turntable, and drives the turntables rotation by servomotor 4, passes through the touch-screen of man-machine interface 6 during work; At turntable rotational parameters setting module the turntable rotational parameters is provided with, control table servo motor 4 rotates.

The above embodiment just is the preferred embodiment of the utility model; Be not the practical range that limits the utility model with this, the electric-control system of the utility model has extendability, and controlled mechanical hook-up is except that being rotated displacement; Can also carry out straight line moving; In the change that need not to do any hardware circuit, programmable controller program, man-machine interface program, only need the kind of drive of controlled mechanical hook-up is improved, as carry out straight line moving simultaneously; Through changing the setting of systematic parameter, the just conversion of the controlled mechanical hook-up kind of drive of may command; The equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection domain of the utility model.

Claims

1. servo positioner electric-control system comprises control center of robot, Programmable Logic Controller and controlled mechanical hook-up, and control center of robot transmit button amount signal is to Programmable Logic Controller and receive the switching value signal that Programmable Logic Controller feeds back, and it is characterized in that:

Controlled mechanical hook-up is connected with the servomotor that drives its action;

Said Programmable Logic Controller is connected with motor servo driver, the rotation of motor servo driver control servomotor, and motor servo driver receives the digital signal of Programmable Logic Controller transmission and exports control signal and give servomotor, drives servomotor and rotates.

2. according to the said servo positioner electric-control system of claim 1, it is characterized in that said Programmable Logic Controller also is connected with mutual feedback and receives the man-machine interface of signal.

3. according to the said servo positioner electric-control system of claim 2, it is characterized in that said man-machine interface comprises turntable rotational parameters setting module and equipment operation and failure message module.

4. according to the said servo positioner electric-control system of claim 1, it is characterized in that control center of said robot also is connected with according to the control program of control center of the robot robot arm by the certain track operation.