电脑横机运动控制技术的研究与实现
发布时间：2018-07-27 10:44
【摘要】：近年来，国内横机需求量越来越大，而国产横机技术相对落后，高档横机市场被国外占领，价格高昂。为填补国内市场缺口，丰富国产电脑横机控制系统的品种，提高国产横机的技术水平，，本文致力于研究与开发具有自主知识产权的电脑横机控制系统。 本文详细分析了单机头双系统横机的结构组成，对横机的工作原理做了深入研究。 根据控制需求与用户的需求，建立了以上、中、下位机为结构的数控系统硬件结构。确立了以ARM+Linux作为上位机和中位机的系统平台。介绍了横机软件系统的总体工作原理，并实现了运动控制软件总体流程。重点介绍了运动控制系统的状态机图。实现了上中位机通信接口和中下位机通信接口。 对于横机运动控制系统的关键技术，实现了FKW文件(横机工作文件)的文件格式和解释模块，且根据它来控制横机的3个电机及机头运动部件。针对FKW文件只提供电机的总脉冲数和总运转时间这两个已知条件这一特点，实现了基于时间约束的伺服电机插补技术。针对横机的快慢车信号干扰情况以及快慢车调速需求，实现了横机的快慢车信号处理模块和快慢车调速控制方法。此外，还实现了主伺服的启动暂停控制、摇床伺服的控制、主罗拉电机的控制等电机控制技术。 搭建了由上、中、下位机3套板卡和3套电机构成的验证系统。随后对软硬件系统进行了上机验证与调试，提供了2件典型花样的羊毛衫织物图。
[Abstract]:In recent years, the domestic flat machine demand is increasing, but the domestic flat machine technology is relatively backward, the high-grade flat machine market is occupied by the foreign countries, the price is high. In order to fill the gap in the domestic market, enrich the variety of the domestic computer flat machine control system and improve the technical level of the domestic flat machine, this paper is devoted to the research and development of the computer flat machine control system with independent intellectual property rights. In this paper, the structure of single head double system flat machine is analyzed in detail, and the working principle of flat machine is deeply studied. According to the demand of control and user, the hardware structure of CNC system is established. ARM Linux is used as the system platform of upper computer and middle computer. This paper introduces the general working principle of the flat machine software system, and realizes the overall flow chart of the motion control software. The state machine diagram of motion control system is introduced emphatically. The communication interface between upper and lower computer is realized. For the key technology of the motion control system of the horizontal machine, the file format and the interpretation module of the FKW file (the working file of the horizontal machine) are realized, and the three motors and the moving parts of the head of the flat machine are controlled according to it. In view of the fact that the FKW file only provides two known conditions: the total pulse number and the total running time of the motor, the interpolation technology of servo motor based on time constraint is realized. Aiming at the interference of the speed and slow vehicle signal and the speed regulation demand of the flat machine, the signal processing module of the speed and slow car and the speed regulation control method of the speed and slow car are realized. In addition, the starting pause control of the main servo, the control of the shaking table servo, the control of the main roller motor and so on are realized. A verification system consisting of 3 boards and 3 sets of motors is built. Then, the software and hardware system is verified and debugged, and two typical woolen sweater fabric drawings are provided.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TG659
本文编号：2147567
[Abstract]:In recent years, the domestic flat machine demand is increasing, but the domestic flat machine technology is relatively backward, the high-grade flat machine market is occupied by the foreign countries, the price is high. In order to fill the gap in the domestic market, enrich the variety of the domestic computer flat machine control system and improve the technical level of the domestic flat machine, this paper is devoted to the research and development of the computer flat machine control system with independent intellectual property rights. In this paper, the structure of single head double system flat machine is analyzed in detail, and the working principle of flat machine is deeply studied. According to the demand of control and user, the hardware structure of CNC system is established. ARM Linux is used as the system platform of upper computer and middle computer. This paper introduces the general working principle of the flat machine software system, and realizes the overall flow chart of the motion control software. The state machine diagram of motion control system is introduced emphatically. The communication interface between upper and lower computer is realized. For the key technology of the motion control system of the horizontal machine, the file format and the interpretation module of the FKW file (the working file of the horizontal machine) are realized, and the three motors and the moving parts of the head of the flat machine are controlled according to it. In view of the fact that the FKW file only provides two known conditions: the total pulse number and the total running time of the motor, the interpolation technology of servo motor based on time constraint is realized. Aiming at the interference of the speed and slow vehicle signal and the speed regulation demand of the flat machine, the signal processing module of the speed and slow car and the speed regulation control method of the speed and slow car are realized. In addition, the starting pause control of the main servo, the control of the shaking table servo, the control of the main roller motor and so on are realized. A verification system consisting of 3 boards and 3 sets of motors is built. Then, the software and hardware system is verified and debugged, and two typical woolen sweater fabric drawings are provided.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TG659
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