Open type triaxial numerical control milling machine motion control platform based on SercosIII communication protocol

Abstract

The invention provides an open type triaxial numerical control milling machine motion control platform based on a SercosIII communication protocol; the motion control platform uses a Visual C++6.0 MFC exploitation platform, builds an open type triaxial numerical control milling machine communication service channel and man-machine interaction interfacial function module based on the SERCOSIII (real time serial communication protocol) communication protocol, and uses the man-machine interaction interface to transmit motion control parameters to a servo driver through the service channel, thus controlling servo motor motions; an encoder on the servo motor uploads the obtained feedback data to a host through the service channel, thus realizing closed loop control; the motion control platform selects an Advantech industrial control computer and the servo driver and servo motor from a German Indramar company, and builds a triaxial numerical control milling machine platform and an electrical control cabinet; the open type triaxial numerical control milling machine motion control platform based on the SercosIII communication protocol has high level openness, instantaneity and interference immunity, thus providing stronger practical values in actual production.

Description

technical field [0001] The invention relates to a motion control platform for a three-axis numerically controlled milling machine, in particular to a motion control platform for a three-axis numerically controlled milling machine based on a SercosIII communication protocol with full software open type. Background technique [0002] At this stage, the main pillar of my country's economic development is the manufacturing industry, which will become the leading field of "innovation-driven" and "transformation and upgrading" of my country's economy. Although my country has become a big manufacturing country in the world, it still has not entered the ranks of manufacturing powerhouses. With the proposal of "Industry 4.0" in Germany, it has had a great impact on the development of manufacturing industry. my country's manufacturing industry accounts for a large proportion of the world. It is called a big manufacturing country, but it is not a manufacturing power. The report has cle...

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Problems solved by technology

[0003] The traditional numerical control system is a special closed architecture, which generally transmits information through analog signals. Compared with the information transmission of digital signals, it has the disadvantages of unstable transmission and low precision. Although the traditional numerical control system can be controlled by the user Design the human-machine interface, but it is not completely open. You must use special development tools and seek help from system suppliers, and you need to invest a lot of manpower and energy to expand, change and maintain its functions. Compared with open CNC systems The development of the development reflects the disadvantages of traditional CNC systems that do not have interchangeability, scalability, portability, scalability and interoperability. Open CNC systems are more flexible, flexible and versatile, and Adopt general PC software and hardware to replace expensive CNC devices in the past. Foreign CNC system technology is far ahead of our country's CNC system technology. We are worried that our country's CNC technology will surpass them, and we have adopted a technical blockade on our CNC system technology. Our development of advanced numerical control technology has caused great difficulties, so it is necessary to independently develop open numerical control systems and numerical control machine tools, and replace the functions originally implemented by hardware with software, which can break the hardware that has long restricted the development of numerical control technology in our country bottleneck

[0004] The communication interface is the core part of the CNC system, and it has an inevitable connection with the processing efficiency and precision of the CNC system. Modern CNC systems generally use digital signal communication interfaces, such as MACRO, Fire, Wire, CAN, MODBUS, etc., but often these The use of the interface needs to be supported by the manufacturer, and it is limited during the use process. The development of some of the technologies is not perfect enough, and the transmission rate of some digital signals is slow and not stable enough. Only simple point control and switching actions can be completed. The development of SercosIII communication interface technology is relatively mature, and it has become the only open interface international standard for motion control, which improves the real-time performance of digital signal transmission. The function expansion of the open CNC system using SercosIII communication interface is difficult and the portability of software is poor. The shortcomings such as poor networking and communication capabilities can be effectively improved

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