变速箱壳体镗孔组合机床电气控制系统设计（有CAD图纸）.pdf

I PLC , PLC I/O PLC I/O PLC PLC PLC PLC FX-2N PLC PLC :(PLC) II Abstract In this paper, the shell of the gearbox boring machine tool as the object of study, through to the main structure and motion forms of inquiry and the working process and the control of machine tools for analysis, given the machine cycle diagram, hydraulic element action table; and the design method of PLC control system, the hardware and the software are designed, a list of PLC I/O address allocation table, rendering the I/O distribution in figure PLC and single cycle automatic work flow diagram, write the PLC control program of ladder diagram of the whole control system operation to be simple, greatly improving the degree of automation system and practical. The history and development of PLC and the combination of machine tool are introduced first, and focuses on the combination of machine tool structure and form of movement and control method, and then the composition and structure of PLC are analyzed, and the overall design and program of PLC control system of expression are summarized, and then acco