Research And Design On The Key Parts Of Multi-station Pen Tip Machine Tool

The main writing function of ball pen is mostly accomplished by pen tips, and the level of writing quality depends on the manufacturing quality of pen tips. The manufacture progress of tip starts from the short blanks, then the blank goes through a series of processes such as turning, drilling, necking, putting ball, pushing ball, etc. The first and most important purpose of this composition is to design a modular machine tool which can satisfied the demands of manufacturing pen tips. In this thesis you can see the following details: A. processing requirement and processing technique of pen tips; B. process and method of identification of process programs and machine tool allocation; C. the integrated design of the machine and detail design of the key parts; D. motion simulation and analysis of moving parts.During the design progress of machine tool, first at all, we should settle down the whole scheme design. In order to be convenient, we divided the whole machine into a couple of modules: control system, transmission system, transposition system and power head module. Further on, confirm more details according to the functions need to be realized. Tasks were finished including choosing main electrical motor and moderator, designing cad, sheave and rotating platform. By using the softw are Solidworks I build the digital model and assembly them together. Then I add the simulate data and attribute to the digital model, so I can use it analysis the machine’s movement performance. In the thesis you can see how two factors: the gap of lever head and the preload force of spring, influence the vibration and moving precision of the whole machine. In the last part of this thesis, I introduce some devices and measures to assembly the machine, to make sure the accuracy of it.This composition plays a leading and instructive role in all the machine tool’s design. As to further detailed design, many more factors need to be considered in, such as the force distribution when machine is working, the influence of high-speed revolution of the power head, the influence of the machining precision of the platform and the stiffness of clamps, etc. After the machine’s manufacturing, assembling and debugging, we can put these into practice at last.