【作者】 卿朝廷；

【导师】 高伟强； 沈烈；

【作者基本信息】 广东工业大学 ， 机械制造及其自动化， 2011， 硕士

【摘要】 数控技术作为先进制造技术的关键与核心技术,正朝着多轴联动、高速、高精度的方向发展。传统的脉冲或模拟量接口的伺服驱动不但不能满足高速高精数控系统的通信要求,而且已经成为高档数控系统发展的一大瓶颈。因此,迫切需要开发数控控制单元与伺服装置之间的数字通信接口。此外,随着半导体行业和多轴联动数控机床的发展,数控技术亟待解决多轴同步协调控制问题。现场总线技术以其结构简单、易于维护、可靠性高和易于实现多通道同步协调控制等诸多技术优势成为数控数字通信接口开发的良好选择。本文的研究目的就是利用MECHATROLINK现场总线技术开发嵌入式数控系统与伺服驱动之间的高速数字通信接口,以满足数控系统的高速和高精度的控制要求,确保数据传输的实时性和可靠性,实现多轴同步协调控制。论文在深入分析了MECHATROLINK总线的协议及其ASIC JL-098体系结构的基础上,结合高性能浮点DSP(TMS320C6713),设计了MECHATROLINK总线接口模块。本文设计了MECHATROLINK的初始化过程与应用程序,包括站点地址的设定.通信参数的计算选择、对JL-098的RAM和I/F寄存器地址的定义与寻址、数据的传输模式、周期数据与非周期数据的传输机制以及应用程序的指令执行序列等。最后搭建了MECHATROLINK主站接口测试平台并进行了测试,测试结果表明,本课题设计的接口模块能够完成MECHATROLINK通信,并经过调试修改,最终成功应用在SDS9-6CNCH2数控系统中。更多还原

【Abstract】 CNC technology is developing in high speed and high-precision as which is the key to the manufacturing technology. Traditional pulse or analog interfaces will not be able to meet the numerical control system communication requirements of high-speed and high-precision, and has become a major bottleneck of the high-end CNC system development. Therefore, to develop a digital communication interface between numerical control unit and servo devices is an urgent need. In addition, as the development of semiconductor industry and the multi-axis CNC machine tools, the numerical control technology urgently awaits to be solved the multi-axis synchronized coordination control problem. The fieldbus technology became a good choice of CNC digital communications interface development for its simple structure, easy maintenance, high reliability and easy to implement multi-channel synchronized control and many technical advantages.The major objective of this study is to develop high-speed digital communication interface between the embedded CNC system and servodrive by using the MECHATROLINK fieldbus technology. This technology can meet the CNC control requirements in high-speed and high precision, ensure real-time data transmission and reliability and achieve multi-axis synchronized control. This paper designed the MECHATROLINK bus interface module Combining with high-performance floating-point DSP (TMS320C6713) on the base of analysis of MECHATROLINK bus protocol and architecture of ASIC JL-098. This paper designed MECHATROLINK initialization process and user application program, include the station address settings, the calculation and choices of communication parameters, defining and addressing the address of JL-098 RAM and I/F register, data transfer mode, periodic data and aperiodic data transmission mechanism and the user application instruction execution sequence and so on. Finally a MECHATROLINK host interface testing platform is built to test. The test results show that the interface model designd in the project can accomplish MECHATROLINK communication. And it is successfully applied in SDS9-6CNCH2 CNC system after commissioning changes.更多还原