摘要：在中国工业4.0如今正在火热开展，机电一体化被认为对于中国工业发展有很大帮助。机电一体化概念设计在三维模型设计时就能与相关的控制软件连接，如PLC，PLM。PLC的控制使得生产变得自动化，这对于制造业来说是一个很大的进步，它能够代替人力做繁重的体力活，减少制造成本，节省时间。42554

本文基于NX机电概念设计（MCD）平台对型号为ex-106的数控车床进行料台及其上下料结构设计与控制仿真，料台采用链传动机构实现对物料的水平传输，通过每个小料台的运动实现物料的上下传输，便于机械手抓取。机械臂结构采用齿轮齿条进行设计，其中，选用型号为Y132M2-6的三相异步电动机驱动齿轮旋转，带动齿条上下移动。然后，利用铰链副完成机械手抓取物料的运动过程。最后，基于NX的机电概念设计（MCD）平台完成料台的运动设计和物料的整个传输，实现数控车床上下料的自动化控制设计。从总体的设计开始，然后是补料的整个过程。机械手部分的运动和计算，机械手横向运动方案，机械手纵向运动方案，机械手抓料的运动方案。之后是各部分的计算，机械手夹爪夹紧力的计算，定位误差的分析，电机的选择等；料台部分的设计和计算，料台上的电机选择，链条静强度的验算。最后是MCD平台和PLC的具体操作，通过给机构定义刚体，添加运动副，并用仿真序列进行速度和位置等控制，实现料台和机械手上下料的运动设计，将MCD平台的操作导出为PLC的程序。

毕业论文关键词：机电一体化；机械手；MCD；PLC；

The structure design and control simulation of the upper and lower material of CNC lathe bed based on MCD platform

Abstract: On the occasion of the Chinese industrial 4.0 to carry out hot. Mechatronics Concept Designer for China's industrial development  is very helpful. Mechatronics conceptual design in the 3 d model design can be connected to the relevant control software, such as PLC, PLM. PLC control makes the production automated, it is a great progress for manufacturing industry, it can replace human doing hard physical labor, reduce cost reduction,to saving time.

In this paper based on NX concept for mechanical and electrical design (MCD) platform on the types of ex-106 CNC lathe of feeding machine and cutting structure design and control simulation, and a chain transmission mechanism of material level of transmission, through the movement of each small and realize transmission of the material, is convenient for a manipulator grasp. Mechanical arm structure of the rack and pinion design. Among them, the selection of models for Y132M2-6 of three-phase asynchronous motor rotation of the drive gear, to drive the rack to move. Then, the hinge side to complete the movement of the manipulator grab materials. Finally, based in NX concept for mechanical and electrical design (MCD) Static longitudinal movement of automatic control of the movement of the platform to complete the material platform design and the material of the transmission, the realization of NC lathe design. From the overall design, and then feeding the whole process. The mechanical part of the hand motion and calculation, manipulator transverse motion scheme, manipulator, manipulator grasping the material motion scheme. After the calculation, the manipulator jaw clamping force calculation and positioning error analysis, motor selection, etc; and part of the design and calculation, and the selection of motor, chain of strength checking. Finally, MCD platform and PLC of the specific operation, by giving the definition of mechanism of rigid body, adding motion pair. And using the simulation sequence of speed and position control, to achieve the material table and the mechanical hand movements of the design, the operation of the MCD platform is exported to the PLC program.