1、 20201111 届毕业设计说明书届毕业设计说明书 小型加工中心自动控制换刀机械手的设计小型加工中心自动控制换刀机械手的设计 1 摘 要 本论文介绍的是小型加工中心换刀机械手的设计。机械手在当今机械行业的应用 的广泛程度世人都有目共睹，随着现代数控技术的发展，在某些工作条件复杂和危险 的情况下，机械手可以代替人类进行各种工作。对于机械手的优点很多，它可以代替 人类高效而且精确的工作，这是最重要的一点。所以，为适应时代发展要求，在机械 手的设计方面国家投入了大量的人力物力。机械手的种类很多，在本次设计中机械手 选用回转式双臂机械手。它的主要动作是将机床主轴上的刀具与刀库或刀具传送装置 上的刀具
2、进行交换，其动作循环为：拔刀新旧刀具交换装刀。回转式双臂机械手 刀具交换装置具有换刀时间短、动作灵活可靠等.应用最为广泛。回顾数控技术的发 展已经经历了两个阶段，六代的发展历程。第一个阶段叫做 NC 阶段，经历了电子管、 晶体管、和小规模集成电路三代。数控系统是加工中心的控制中心，它主要由（CNC） 、 可编程控制系统(PLC)、伺服系统构成。本次设计是运用可编程控制系统来对换刀机 械手进行控制的。 关键词: 加工中心；换刀机械手；PLC 2 Abstract This paper introduces the design of the tool changing-manipulator o
3、f the small machines centertool changing-manipulator is one of the main components of the automatically-trading-knife installment. Robotic applications in todays machinery industry are obvious to the extent of the world, with modern CNC technology, working conditions in some of the complex and dange
4、rous situation, the robot can replace humans in a variety of work. The robot has many advantages, it can replace the human efficient and precise work, this is the most important point. Therefore, in order to meet the requirements of the times, in the design of the manipulator state has invested a gr
5、eat deal of manpower and resources. There are a lot of types of tool changing-manipulators. The tool changing-manipulator of this design adopts the two arms manipulator of turn-over type in this design。It is main movement is carries on the machine tool of main axle on cutting tool and the tool stora
6、ge or exchanging the cutting tool in the transport installment. Its operating cycle is: to draw the tool - exchanging the new and the old cutting tool - to fix the tool. The two arms manipulator of turn-over type exchange installment has trade the knifetime short, the movement is nimbly and reliably and so on . The two arms manipulator of turn-over type is widely used in the machining centre. The numerical control system is the centeral of control in the processing center, which is conclud
