Control system and method for rotating speed of motor spindle of numerical control system
A technology of numerical control system and spindle speed, applied in the direction of electric speed/acceleration control, etc., can solve problems such as unreliable reliability, unstable control system, system blue screen crash, etc., and achieve non-interference stability, real-time control improvement, Good stability and reliability
Inactive Publication Date: 2012-03-28
SHANGHAI SANY PRECISION MACHINERY
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Benefits of technology
This patented technology allows for efficient and reliable control systems by controlling loops without being affected externally or causing errors. It uses a specialized interface called ecoCelbus (ECO) which connects two devices together with cables at high speeds. By setting up this connection within the device's own memory, there will be fewer connections than if they were connected directly from outside world. Additionally, the use of Ethernet communications makes them faster but more stable compared to traditional methods like CAN/RS485. Overall, these technical improvements make the process work smoother and improve over existing technologies such as digital controlled power steering (DSW).
Problems solved by technology
This patented technical problem addressed in this patents relates to improving the efficiency and precision of machining tools used with digital controlled motors (DCM). Specifically, current techniques involve expensive equipment such as an AC/AC adapter or specialized circuitry which can fail due to factors like poor coolant flow caused by insufficient heat dissipation during cutting operations. To address these issues, there has been developed various solutions involving timepieces and analog feedback loops. However, each solution involves different types of components depending upon their respective functions but may also result in instabilities over long periods of usage.
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[0031] The features of the control system and method of the present invention will be further described below in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown, the control system for the motor spindle speed of the numerical control system of the present invention includes an embedded Linux numerical control system master station 1 and a numerical control system slave station 2 . The master station 1 of the embedded Linux numerical control system includes a control module 11 and a master station interface module 12 . The numerical control system slave station 2 includes a servo device (or servo drive device) 22 with a slave station interface 21 and a motor 23 connected to the servo device 22 . In this embodiment, the master station interface module 12 is a standard network port RJ45 network port. The servo device 22 in the slave station 2 of the numerical control system is an AMK KW-r03 servo driver, and its control mode is speed control. The co
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The invention relates to a control system and a control method for the rotating speed of a motor spindle of a numerical control system. The control system comprises an embedded Linux numerical control system master station and a numerical control system slave station which are in communication connection through an Ethernet control automation technology (EtherCAT) communication protocol bus, wherein the embedded Linux numerical control system master station periodically sends a speed command value to a servo device of the numerical control system slave station through a soft circuit layer to control the motor to rotate according to the speed command value; and the servo device of the numerical control system slave station periodically feeds a speed feedback value back to the embedded Linux numerical control system master station, so that a full closed loop control system is formed. A closed loop control method is adopted, the system and the method are basically free from interference, high in stability and transmission speed and low in failure rate, the circulation time of full closed loop control reaches 1mu s, control accuracy can reach 1nm, the rotating speed of the motor spindle reaches 16,000rpm, and stability and reliability are ensured.
Description
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