文档介绍：本科毕业设计(论文) I 20-- 年5月摘要本课题来源于机械工程学院与东莞腾威印刷机械有限公司的产学研究项目,主要工作之一就是为企业完成全自动曲面丝网印刷机等设备的二维、三维设计图纸,大部分工作都是在企业进行的。本文设计主要完成印刷机构及其主传动系统部分的设计,印刷机构的设计可细分为网版的往复运动机构设计,承印物的回转运动机构设计,以及承印物的夹紧机构设计和自动传送机构设计。往复运动采用的是曲柄摇杆机构,以滑块为载体,实现网版的往复运动;回转运动选用的是齿轮齿条机构,将滑块的往复运动转化成回转运动, 实现了网版和承印物的配合运动,简化了机构。夹紧机构采用的气缸装置,由可编程控制器控制,实现自动对位、无瓶不印等控制功能。自动传送机构的设计采用的是曲柄摇杆设计,实现一定角度的回转摆动运动,因而带动承印物的同步传送。本设计对印刷装置的工作原理作了详细的介绍,并通过设计计算确定其主要参数和结构。通过对印刷装置的各部件零件做详细的测绘,完成了整机的三维总装图和各部件装配图的绘制。关键词:丝网印刷,机构设计,全自动本科毕业设计(论文) II ABSTRACT This es from the research project of Mechanical Engineering College and Dongguan TengWei Printing pany .One of its main jobs is to finish the design drawning with two-dimension and three-dimension for the Full Automatic Screen Printing Machine for Curved Surface . Most of the above work had done in pany . The design in this paper mainly is plete the design of Printing Instruction and its part of Main Transmission System . And the Printing Instruction has been divided into Reciprocating Motion Mechanical Design of Screen Frame , Rotary Motion Mechanical Design of Printing Workpiece , Fixture Mechanical Design of Printing Workpiece and Automatic Conveying Mechanidal design . Reciprocation Motion adopts the Crank Rocker Mechanical Design , with the Silder as the carrier , so as to make the Screen Frame move back and forth ; Rotary Motion adopts the Gear Rock Mechanical Design , chaging the Reciprocation Motion into the Rotary Motion ,so as to achieve the Matching Movement of Screen Frame and Printing Workpiece , which simplifies the Mechanical Industruction . The Fixture Mechanical Design uses the Air Cylinder Equipment , being cotrolled by the PLC , so as to obtain the controlling function of Automatic Counterpoint and No Bottles No Printing . Automatic Conveying Mechanidal Design uses the design of Crank Rocker , achiving the goal ofa certain degree of Rotary Motion at ,so as to push the Synchronous Transmission of printing workpiece . This design gives the detailed introduction for working pri