毕业论文-自动升降办公桌的设计结构设计.pdf

自动升降办公桌 学生姓名： 指导教师：教授 浙江科技学院机械学院 自动升降办公桌设计 学生姓名： 指导教师：教授 浙江科技学院机械学院 摘要： 本文介绍的主要内容是设计基于PLC的升降控制系统的自动升降办公桌，在普通办公 桌上增加 自动升降功能，适于各个不同身高的人使用，同时使自动升降系统更加的平稳， 操作方便，具有较高的安全性。 本次操作的整个升降系统通过PLC、逻辑控制电路等对升降桌进行升降控制，升降系 统由电机， 轮 杆传动，升降丝杆上下运动，桌子的外结构有内套管和外套管还有横梁 共同支撑桌面，构造简单，移动方便，升降系统的设计安全可靠，控制系统主要由PLC、 逻辑控制电路、梯形图等组成，其中包括直流电动机、行程开关、按钮开关、变频器组成 为一体的控制系统。本次设计的操作控制单元采用日本三菱公司生产的FX系列的可编程 控制器对机器进行全过程控制。其结构简单、操作方便、运行效率高、升降精度高、易于 理解与掌握。 关键词： 轮 杆；升降丝杆；可编程控制器；PWM变频器 Automatic lift desk design Student: Advisor: Dr. School of Mechanical and Automotive Engineering Zhej iang University of Science and Technology Abstract This article describes the main content of the design is based on the LC lift control system automatically lift the desk, in the ordinary desk to increase the automatic lifting function, suitable for the use of different height of the people, while the automatic lift system more stable, easy to operate, Has a high degree of security. The following are the same as the The entire lift system of this operation through the LC, logic control circuit on the lift table for lifting control, lift system by the motor, worm gear drive, lifting screw up and down movement, the outer structure of the table with inner casing and casing and beams The control system is mainly composed of LC, logic control circuit and ladder diagram. It includes the control of DC motor, limit switch, push button switch and inverter. The control system is composed of LC, logic control circuit and ladder diagram, system. The design of the operation of the control unit usin