XY数控工作平台设计.doc

X-丫数控工作平台设计 机电一体化系统以微电子装置取代人对机械的绝大部分的控制功能的特点，以及节 省能源和降低材料消耗的特点，实现了机电一体化系统的高附加值化：性能更高、价格 更低、可靠性高、智能化、省能化、短小轻薄化。 木设计研究的课题是X-Y数控工作平台。CNC二维工作平台结构简单，利用微机 控制系统对机床进行控制，扩大了机床的加工范围，提高了加工精度以及可靠性。CNC 二维工作平台的设计主要分为机械系统的设计和控制系统的设计。机械系统包括工作台 的结构尺、?设计，导轨的选择与参数确定，滚珠丝杠副的选择计算，轴承的选用与计算， 机架的设计等；控制系统的设计包括步进电机的选用，计算机的选用，控制电路的设计， 软件的设计等。木设计侧重于机械系统的设计以及步进电机的选择。根据工作平台的参 数：行程，X、Y丝杠的转速，理论定位精度，X、Y方向的轴向载荷等，完成整个产 品的设计计算。按照输入的加工程序进行插补运算，由软件或硬件实现脉冲分配，输出 一系列的脉冲，经功率放大驱动纵轴，横轴运动的步进电机来实现对机床的控制，使工 作台实现在水平面内的工件切割。 关键词：X-Y数控工作平台；机械系统；步进电机；计算机 X-￥ CNC Worktable Design Abstract The mechanical and electrical integration system takes the micro electronic device to replace the human to machine the majority control function characteristic,saves the energy and reduces the material consumption.These characteristic make parts processing realizing the mechanical and electrical integration system’s high added value including the higher performance, the lower price，the intelligence, the province energy. The design and research of the subject is the X-Y numerical control platform. CNC two dimensional work platform is simple. Using of computer control system to control the machine tool expanding the range of machine tools improve the machining accuracy. The design of CNC two dimensional work platform is mainly divided into mechanical system design and control system design. The mechanical system includes the design of the structure size of the working table, selection of the guide rail, the choice of the ball screw pair, the selection and calculation of the bearing，the design of the frame. And the control system including the selection of the stepping motor and the computer，the design of the control circuit and the software. This design focuses on the design of mechanical system and the selection of stepping motor. According to the parameters of the working platform，the speed of the stroke，the Y，the X screw speed，the accuracy of the theoretical position，the axial load of the X and the Y direction，we can complete the