北京理工大学珠海学院 2020 届本科生毕业设计 零件工艺分析及夹具设计零件工艺分析及夹具设计摘要本设计主要针对自动分离两段式 PCB 测试治具的主要零件-挂钩座进行工艺分析及其相关工序的夹具设计。零件的工艺分析包括工艺过程分析及其主要工序的切削用量和加工时间进行计算。夹具设计主要包括定位元件的设计和夹紧机构的设计，夹紧机构是以气缸作为气动执行元件；齿轮两齿条作为对中机构；支点推杆作为夹紧执行机构。该夹具可以实现在同一套夹具上进行铣平面和钻孔的功能，提高夹具的利用率，减少加工成本提高效率。设计软件主要使用 soilwork 软件进行工装夹具的三维建模与运动仿真和用 AUTO CAD 绘制夹具的二维图。 关键词：挂钩座；工艺分析；夹具设计；建模；工程图；北京理工大学珠海学院 2020 届本科生毕业设计 Part process analysis and fixture designAbstractThis design is mainly aimed at the process analysis of the main part of the automatic separation two section PCB test fixture - the hook base and the design of the fixture of the related process. Process analysis of parts includes process analysis and calculation of cutting parameters and processing time of main processes. The fixture design mainly includes the design of positioning element and clamping mechanism. The cylinder is used as the pneumatic actuator of the clamping mechanism; the two gears and racks are used as the centering mechanism; the fulcrum push rod is used as the clamping actuator. The fixture can realize the function of milling and drilling on the same set of fixture, improve the utilization rate of fixture, reduce the processing cost and improve the efficiency. The design software mainly uses soilwork software to carry out three-dimensional modeling and dynamic simulation of fixture, and uses Auto CAD to draw two-dimensional diagram of fixture.Keywords: Hook seat; process analysis; fixture design; modeling; engineering drawing;北京理工大学珠海学院 2020 届本...
