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A servo or stepper motor control system and control method for realizing planar motion

A technology of stepping motor and planar motion, which is applied in the direction of motor generator control, control system, multiple motor speed adjustment, etc. It can solve the problems of speed limitation, high speed and high precision at the same time, and achieve fast speed and convenience Synchronous control, the effect of solving trajectory problems

Inactive Publication Date: 2016-01-13
NINGBO UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] At present, the common motor plane motion linkage technology generally adopts the software method, that is, the existing linear interpolation technology and circular interpolation technology are used to realize it, but this technology of using the software method to realize the motor plane motion linkage technology is controlled by the speed of the motor. Restrictions, can not meet high speed and high precision at the same time

Method used

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  • A servo or stepper motor control system and control method for realizing planar motion

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Embodiment 1

[0022] A kind of servo or stepper motor control system that this embodiment proposes realizes planar motion, such as figure 1 As shown, it includes a clock generator 1, a PLD (ProgrammableLogicDevice, programmable logic device) chip 2, a first servo or stepper motor 31, a second servo or stepper motor 32, and a conventional embedded processor 4, the PLD chip 2 Built-in controller 21, prescaler 22 for speed control, first frequency divider 23 and second frequency divider 24 for trajectory control, embedded processor 4 and controller 21 and prescaler respectively The frequency converter 22 is connected, and the embedded processor 4 outputs the parameters (such as the slope of the straight line, etc.) to realize the linear plane motion or the parameters (such as the radius of the arc) to the controller 21, and the embedded processing Device 4 controls the frequency division number of prescaler 22, and the signal output end of clock generator 1 is connected with the signal input e...

Embodiment 2

[0026] A kind of servo or stepper motor control method for realizing planar motion proposed in this embodiment is based on the servo or stepper motor control system proposed in Embodiment 1, which includes the following steps:

[0027] ①The clock signal is generated by the clock generator 1, and the clock signal is transmitted to the prescaler 22 built in the PLD chip 2, and the received clock signal is divided by the prescaler 22 to obtain the prescaler The pulse signal, and then the prescaler 22 transmits the prescaled pulse signal to the first frequency divider 23 and the second frequency divider 24 built in the PLD chip 2 .

[0028] 2. The first frequency divider 23 and the second frequency divider 24 respectively carry out frequency division processing to the pulse signals received respectively to obtain the pulse signal after frequency division again, wherein the frequency division number of the first frequency divider 23 and The frequency division number of the second f...

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Abstract

The invention discloses a control system and method of servo motors or stepper motors for achieving the plane motion. The control system of the servo motors or the stepper motors for achieving the plane motion comprises a clock generator, a PLD chip, a first servo motor or stepper motor and a second servo motor or stepper motor, wherein a controller, a prescaler, a first frequency divider and a second frequency divider are arranged in the PLD chip in a build-in mode, the output end of the clock generator is connected with the input end of the prescaler, the output end of the prescaler is connected with the input end of the first frequency divider and the input end of the second frequency divider, the controller has control over the frequency division number of the first frequency divider and the frequency division number of the second frequency divider, the output end of the first frequency divider is connected with the first servo motor or stepper motor, and the output end of the second frequency divider is connected with the second servo motor or stepper motor. The control system and method of the servo motors or the stepper motors for achieving the plane motion have the advantages that due to the fact that synchronous control over the two motors is achieved through the same clock signal, the resultant velocity of the plane motion produced by linkage of the two motors can be controlled, hardware resources are made full use of, and real-time control can be high in accuracy and high in speed.

Description

technical field [0001] The invention relates to a plane motion control technology, in particular to a servo or stepping motor control system and control method for realizing plane motion. Background technique [0002] Plane motion has the characteristics of two-dimensional control drive. Plane motion has broad application prospects in modern CNC equipment and other ultra-precision processing equipment, especially in various economical CNC systems, such as laser processing systems. Laser cutting machines, laser scribing machines, etc., so planar motion has attracted extensive attention from academia and industry. In the field of semiconductor front-end processing equipment, it is required that the motion accuracy of the motor for plane motion reaches sub-micron or even nanometer level. However, it is not only expensive but also difficult to achieve high speed by improving the precision of mechanical parts and electrical actuators. Therefore, The most suitable method is to co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P5/46H02P8/40
Inventor 俞建定杨高波文化锋李有明骆国庆王银
Owner NINGBO UNIV
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