Research On Motion Control System Of Steel Billet Rapid Marking Equipment Base On EtherCAT

In order to respond to Industry 4.0 and Manufacturing 2025,the domestic identification industry has higher and higher requirements for the automation procedures of marking equipment.Especially in the aspect of motion control,the equipment is required to be quickly identified,the character recognition is high,and the equipment is stable.For such a requirement,there is a big challenge for the traditional PLC.It is necessary to require the PLC to quickly communicate the motion command.In the process of transmission,the communication capability is reflected.The traditional field bus in the industry has many shortcomings place.EtherCAT is the fastest growing in many of the emerging industrial real-time Ethernet networks.It was developed by BECKHOFF in Germany.It features real-time performance,flexible topology,high security and reliability,and supports up to 65535.Devices with an open network,the control of multi-axis in the logo is relatively simple.In this paper,based on EtherCAT,it provides a good solution for the problem that the identification equipment has slow identification speed and difficult communication.The main research in this paper is divided into the following aspects:1.This paper first introduces the background and significance of the development of this set of identification equipment,a simple analysis of the development and prospects of domestic and international identification equipment,and briefly describes the development of EtherCAT from the R&D to the present.A brief summary of motion control,listing the types of several controllers in the country.2.The system describes the EtherCAT motion control technology,from the EtherCAT protocol principle,the EtherCAT master unit,the EtherCA slave unit,the communication mode and how EtherCAT enables the slave to generate synchronization signals and EtherCAT diagnostics.These advantages highlight EtherCAT’s motion control.The rapidity and real-time of technology provide the possibility for rapid identification research of this topic.3.The system describes the servo system based on EtherCAT,introduces the COE servo from the internal object dictionary and operation mode of the servo.According to the actual mechanical structure transmission mode in this subject,the servo motor is selected and calculated.For the TwinCAT control servo process,some important parameters are calculated and set,and some important parameters inside the servo are excavated by TwinCAT NC and presented.4.The dynamic control part is mainly completed by an electronic cam,and the purpose is to complete the rapid identification.The paper introduces the establishment of the electronic cam table,how to choose and analyze the character points,and optimizes and designs the characters under the most advantageous number through the unique cam design tool in TwinCAT to minimize the impact.Then,through the program optimization,the acceleration curve monitored in TwinCAT Scope View is derived by Matabl,and compared with the impact curve before optimization,and finally the ideal identification time and identification effect are obtained.The system is developed for field application projects.Through comprehensive debugging,it meets the technical requirements of steel plant identification.