【作者】 杨恒宗；

【导师】 胡小唐； 傅星；

【作者基本信息】 天津大学 ， 测试计量技术及仪器， 2006， 硕士

【摘要】 激光加工因其非接触加工、加工精度高和使用范围广等优点,已经越来越多的被应用于现代工业各领域。中国工业激光市场的起步晚于发达国家20年左右,但由于中国经济的迅速发展,市场需求带动了激光加工产业的发展。激光加工主要依赖激光加工设备,它的技术水平代表了激光加工技术的水平。激光加工设备的性能在激光器和机械运动装置确定之后,系统的功能、精度、加工工艺水平等关键性指标主要由控制系统决定。美、日等国家一直把它列为重点发展目标,也正成为我国该领域研究的重点。本文在认真调研和深入分析的基础上,设计了数字式多功能激光加工系统。系统在继承了过去激光加工系统的传动系统与光源设计的基础上,设计了基于DSP与单片机的控制系统,使激光加工效果与操作的人性化大大提高,并实现了矢量切割、矢量雕刻与位图雕刻的多功能加工方式。具体完成的工作有:(1)对该领域的发展现状进行调研,结合激光加工的特性,确定数字式多功能激光加工系统的总体设计方案,包括激光加工方式和系统结构。(2)完成以DSP和单片机为核心的控制系统的设计。(3)完成控制系统硬件电路的制作与调试,主要有DSP模块、单片机模块和控制模块等。(4)完成DSP和单片机的软件编程与调试,DSP的程序包括与上位机和单片机的通信,对NFLASH的操作以及加工时的数据处理;单片机的程序包括与人机交互界面的通信,与DSP的通信以及限位保护。(5)完成激光加工系统整机调试,制作了三台样机,并通过了用户验收。更多还原

【Abstract】 Laser machining is applied widely in the industry for non-contact, high precision and wide application, etc. Although the domestic laser machining market lags 20 years behind the developed countries’, the laser machining market grows fast due to the Chinese flying economy.The technology of laser machining depends on the development of laser machining system. The capability of laser machining system is affected not only by the laser and the machining equipment, but also the control system. It determines the ability, precision and machining level of the laser machining system. The USA and Japan emphasize to develop it. So we should realize the importance of developing the laser machining control system, and put it as the keystone of internal research. This dissertation brings forward digital multifunctional laser machining system based on deep analysis and investigation. The system inherits the transmission agent and the lamp-house from the old systems; designs a new control system based on the DSP and the microchiop. These changes develop the laser machining effect and make it more convenient for users. The laser machining system can do the vector cutting, vector carving and bit carving.Main works have been achieved:1. Referred to related data and determined the whole design project, including the machining modes and the system structure.2. Managed the design of the control system based on the DSP and the microchip.3. Debugged the hardware of the control system, including the DSP module, the microchip module and the control module.4. Developed and debugged the program and algorithm of the DSP and the microchip.5. Debugged the function of the laser machining system. Completed three model machines and gave users to work.更多还原