PCB铣刀全自动开槽设备运动控制关键技术研究

发布时间：2018-03-07 05:03

本文选题：自动开槽设备　切入点：运动控制　出处：《华南理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：PCB铣刀是PCB制程中的重要消耗品之一，随着PCB行业的快速发展，，对PCB铣刀的需求量增大，自动开槽设备具有良好的市场前景。目前国外厂商已有相应的自动开槽设备，并且占据国内主要市场，但其价格高昂，技术保密，因此研发具有自主知识产权的PCB铣刀全自动开槽设备具有迫切的应用需求。论文围绕PCB铣刀全自动开槽设备的具体需求，重点探讨了运动控制系统的关键技术，包括回零算法、速度规划、插补算法和反向间隙补偿算法等关键技术的研究。论文主要工作包括四大部分：首先，论文探讨了PCB铣刀螺旋槽的数学模型，求得PCB铣刀柱面螺旋槽的方程，为螺旋槽加工插补算法提供了计算依据。同时在需求分析的基础上提出自动开槽设备系统设计的相关要求，规划了系统硬件和软件设计方案，包括机械部分和运动控制部分。其次，论文重点对自动开槽设备的运动控制系统进行了研究。介绍了运动控制中常用的回零算法、速度规划算法和插补算法，针对本设备的具体机械结构以及控制要求，提出适合该设备的相应运动控制算法，实验结果表明，本文所述控制算法重复精度达到1.3微米，能够满足加工要求。另外，考虑到该设备的半闭环控制结构，研究了基于加减速控制的反向间隙补偿算法，并在VS中编程仿真，结果表明该算法能够实现设计意图。再者，根据PCB铣刀全自动开槽设备的需求，编写PLC程序实现设备的自动运行逻辑，并在Visual Studio2008平台下完成系统的UI界面设计。最后，在设备组装完成之后进行设备的整机调试，进行上下位机通信实验，实际加工测定该设备的加工精度和效率，系统的实验结果表明，相关方法及实施技术有效可行，对于提高PCB铣刀加工质量和效率具有重要的应用价值。
[Abstract]:PCB milling cutter is one of the important consumables in PCB process. With the rapid development of PCB industry, the demand for PCB milling cutter increases, and the automatic slotting equipment has a good market prospect. And occupies the domestic main market, but its price is high, the technology is confidential, therefore research and development PCB milling cutter automatic slotting equipment with independent intellectual property has the urgent application demand. The key technologies of motion control system, including zero back algorithm, velocity planning, interpolation algorithm and reverse gap compensation algorithm, are discussed in detail. Firstly, the mathematical model of spiral groove of PCB milling cutter is discussed, and the equation of cylindrical spiral groove of PCB milling cutter is obtained. At the same time, on the basis of requirement analysis, the paper puts forward the related requirements for the design of automatic slotting equipment system, and plans the hardware and software design scheme of the system, including the mechanical part and the motion control part. Secondly, the paper focuses on the research of motion control system of automatic slotted equipment, introduces the commonly used motion control algorithm, velocity planning algorithm and interpolation algorithm, aiming at the specific mechanical structure and control requirements of the equipment. The corresponding motion control algorithm suitable for the equipment is proposed. The experimental results show that the repetitive precision of the proposed control algorithm is 1.3 渭 m, which can meet the processing requirements. In addition, considering the semi-closed loop control structure of the equipment, The reverse gap compensation algorithm based on acceleration and deceleration control is studied and simulated in vs. The results show that the algorithm can realize the design intention. Thirdly, according to the demand of PCB milling cutter automatic slotted equipment, the PLC program is written to realize the automatic running logic of the equipment, and the UI interface design of the system is completed under the Visual Studio2008 platform. Finally, after the equipment assembly is finished, the whole equipment is debugged, the communication experiment is carried out, and the machining precision and efficiency of the equipment are measured. The experimental results show that the relevant methods and implementation techniques are effective and feasible. It has important application value for improving the machining quality and efficiency of PCB milling cutter.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP273;TG714

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