普通车床刀架plc控制毕业设计.doc

摘 要 在未来，普通的车床中高发展近年来对刀架需求量。刀架的发展是：的发展，刀架向快速换刀和驱动方向发展。主要工位刀架的设计关键词 ： ；； bstract CNC lathe in the future will be to the high-end development, the middle class with the popularization of CNC turret matching, high-grade use of power type turret, both hydraulic turret, servo turret, vertical turret and other varieties. In recent years, the demand for NC tool rest will be greatly increased. The future development trend of CNC turret is: with the development of CNC lathes, CNC turret began to servo drive, fast changing and electro hydraulic combination drive direction. This part mainly of the turret four position electric turret lathe PLC control design, circuit and the electric tool design, carries on the analysis from the turret of the structure and working principle, design and research relates to the ordinary lathe PLC control, electric control and principle and the mechanical structure, the hall element principle and application of. The tool changing action of turret turret is divided into three parts: the cutter head, the cutter head and the cutter head are locked. The rotation of the cutter head is composed of the following steps: the control system sends out the instruction of the cutter head turning, the starting of the three-phase asynchronous motor, the worm wheel and the worm wheel, and the cutter head main shaft rotates to realize the turning of the cutter head. The turning of the cutter head is driven by a three-phase asynchronous motor. Keywords: Lathe tool post; capstan turret; PLC control electric rotary tool 目 录 1 绪论 1 1.1课题的研究背景 1 1.2课题的来源意义 1 2 刀架硬件部分 4 2.1刀架的介绍 4 2.1.1 刀架的产生 4 2.1.2刀架的分类 4 2.1.3 刀架的几种结构 4 2.2四工位刀架的组成 5 2.3四工位刀架的结构图 7 2.4四工位刀架控制电路的组成 8 3 PLC控制车床刀架 9 3.1霍尔元件在刀架中的运用 9 3.2车床刀架控制 9 3.2.1简易刀架的控制 9 3.2.2刀架的锁紧时间 12 3.2.3刀架刀位信号监控 12 3.2.4换刀时间的监控 12 4 车床刀架的选用及工作 13 4.1 刀架的选用 13 4.2 电动刀架的电机控制 13 4.3 四工位刀架 13 4.3.1四工位刀架的工作原理 13 4.4 刀架驱动 14 4.5 刀架工作顺序 15 5 PLC控制车床刀架 16 5.1换刀装置的硬件设计 16 5.2 I/O地址分配表 16 5.3车床刀架换刀梯形图 17 5.3.1数控机床刀架换刀模式 1