【毕业论文】基于PLC的两工位钻孔攻丝组合机床控制系统的设计与开发.doc

JDFJKDHFKAHGJHLKFHJHAKHFLJKDHFKLJASHDFKJHAKLDFHDLSFHKLDSJ DFSGSJDFKGHERUHJKDHKLSHDKJHKSHKFHLKGHDLSFGHDSKLFHGLDKSFHGLKFGDS 基于PLC的两工位钻孔攻丝组合机床控制系统设计 摘要 随着机床行业和控制技术的不断发展与进步，根据生产的实际需要，机床的升级改造已成为一种新兴的行业。通过对现有机床的全部或局部结构进行改造，来提高机床的各项技术指标，对于实现资源的合理利用和促进经济增长起到重要的作用。 本课题主要研究的是采用PLC控制两工位钻孔攻丝组合机床的动作。两工位钻孔攻丝组合机床通电后能自动完成工件的钻孔和攻丝加工。在传统的控制系统的设备中，通常采用的是继电器控制，这种控制系统可靠性低，而采用PLC进行控制改造后，系统可靠性明显提高。 本次设计的重点在于控制系统的硬件设计，根据工艺要求选择了控制系统所需要的电气元件，绘出电力拖动系统的主回路电路图、PLC的外部接线图。论文根据机床的加工要求设计了PLC控制的程序，以及对机床的调试进行了简要的概括。 关键词： PLC控制 程序设计 调试 组合机床 The Design Of The Control System Of two worktables drilling tapping combination machine Based On The PLC ABSTRACT Along with the development of machine tool industry and technology continues to progress according to the actual needs of the production machine ,upgrading has become a new growth industry based on the existing machine tools in whole or in part the structure upgrades to improve machine tool technology index. To achieve rational use of resources and promote economic growth plays an important role in. This topic main research is to use PLC to control two worktables drilling tapping modular machine tool operation. Two worktables drilling tapping modular machine tool by the system can automatically complete the workpiece. In the control system of the traditional is commonly used in the relay control, and this control system reliability is low, but when it is controlled by a PLC transformation, system reliability is obviously improved. The focus of this design is that the control system hardware design, according to the process requirements of electrical components control system requires the choice, Drawing the external wiring diagram of main circuit diagram and the PLC electric drive system. This paper designs a PLC control program according to the machine processing requirements, and commissioning of the machine are summarized. KEY WORDS: PLC control The program design debug Combination machine tools 前言 两工位钻孔攻