毕业设计（论文）-PLC机械手设计1.docx

毕业设计（论文）-PLC机械手设计1.docx当面临人工无法实现的工作时，机械手成为了替代人工的替代品。在工业生产和其 他领域内，由于工作的需要，人们经常受到高温、腐蚀及有毒气体等因素的危害，增加 了工人的劳动强度，甚至于危机生命。机械手就在这样诞生了，机械手是工业机 器人系 统中传统的任务执行机构，是机器人的关键部件之一。机械手的使用能够显著的提高生 产效率，减少人为因素造成的废次品率。机械手可以完成很多工作，它在自动化车间中 用来运送物料，从事多种工艺操作。它的特点是通过编程来完成各种预期的作业，在构 造和性能上兼有人和机器人的部分优点，尤其体现了人的灵活协调和机器人的精确到 位。
随着科学技术的发展，人们对机械手的安全性，可靠性，准确性有了充分的认识， 同时对其要求也越来越高。可编程控制器凭其稳定性，简单性，强大性成为了目前应用 最广的工业自动化支柱之一。
关键词：数控；自动装卸；机械手；PLC
Abstract （英文摘要）
When faced with the work of man can not be achieved when the robot has become a substitute artificial substitutes. In industrial production and other areas, due to the needs of work, often by high temperatures, corrosive and toxic gas hazards and other factors, an increase of labor intensity, and even life crisis. Manipulator was bom in this way, the industrial robot manipulator system, the traditional task of implementing agencies, is one of the key components of the robot. The use of mechanical hand can significantly improve production efficiency and reduce waste caused by human factors defective rate. Robots can do a lot of work, it is used in the automated plant in the transportation of materials in a variety of process operation. It is characterized by a variety of programming to complete the desired operation, structure and performance in both parts of the robot and the advantages of flexibility in particular, who embodies the precise coordination and place robot.
With the development of science and technology, people robot safety, reliability, accuracy with a full understanding, while also increasing their demands. Programmable controller by virtue of their stability, simplicity, robustness has become the most widely used one of the pillars of industrial automation.
Key Words： NC; automatic loading and unloading; mechanical hand; PLC
摘 要 I
Abstract （英文摘要） II
第1章绪论 1
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PLC的发展概况 2
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PLC的定义 2
PLC的特点 3
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第2章系统控制结构的确定 5
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第3章