三孔承压螺母自动上下料装置设计【毕业论文+CAD图纸全套】.doc

宁XX大学 毕业设计(论文) 三孔承压螺母自动上下料装置设计 分 院： 专 业： 班 级： 姓 名： 学 号： 指导教师： 年 月 摘 要 本文介绍的三孔承压螺母自动上下料装置设计由气缸推动机构送料、精确定位，微动开关将位置信号传给PLC主机；位置信号由接近开关反馈给PLC主机，通过气缸控制工件的行程，从而实现上下料装置精确运动的功能。本课题拟开发的上下料装置可在空动作灵活多样，可代替人工在高温和危险的作业区进行作业，并可根据工件的变化及运动流程的要求随时更改相关参数。 本文在纵观了近年来自动上下料装置发展状况的基础上，结合自动上下料装置方面的设计，对机自动上下料装置技术进行了系统的分析，提出了用驱动和PLC控制的设计方案。采用整体化的设计思想，充分考虑了软、硬件各自的特点并进行互补优化。对自动上下料装置的整体结构、执行结构、驱动系统和控制系统进行了分析和设计。 通过以上部分的工作，得出了经济型、实用型、高可靠型自动上下料装置的设计方案，对其他经济型PLC控制系统的设计也有一定的借鉴价值。 关键词: 自动上下料装置，交流电机,可编程控制器（PLC），自动化控制。 Abstract This paper introduces three bearing nut automatic feeding device designed by the cylinder pushing device feeding, precise positioning, micro switch position signal transmission will host PLC; location close to the switching signal from the feedback to PLC host, through the control of a cylinder workpiece stroke, so as to realize the material precise motion device under the function. The topics to be developed by the loading and unloading device in flexible, can replace manual work in high temperature and the dangerous operation area, and may at any time change the relevant parameters according to the work piece change and the movement flow requirements. Based on the automatic loading and unloading device in recent years throughout the development of the design, combined with automatic feeding device, analyzes systematically the machine automatic technology under the feeding device, the design scheme for drive and PLC control. The design method of integrated, fully considering the characteristics of soft, hardware and complementary optimization. On the overall structure, mechanical hand execution structure, driving system and control system analysis and design. Through the work above, the design scheme of economical, practical, high reliability model of mechanical hand, also has certain reference value for t