激光烧结快速成型设备控制系统设计研究
发布时间：2018-08-04 10:18
【摘要】：伴随国内制造业的转型,激光技术开始应用于工业制造领域。激光烧结快速成型设备也在迅速的发展壮大,为零件加工提出了新的解决方案。在复杂零件的加工上优势更加明显。本课题针对现有激光烧结快速成型设备的控制成本高,与传统数控加工设备兼容性低等不足。从降低设备的控制成本的角度出发,设计了以Arduino为控制核心的低成本激光烧结控制系统,详细叙述了控制系统的硬件搭建方法,并对铺粉模块进行了优化设计,对控制系统算法进行了研究及软件设计。本文的主要研究内容如下包括:对激光烧结快速成型设备控制系统进行了总体设计。提出了设备硬件的构成方法,以及下位机软件实现的任务和程序结构的规划。完成了激光烧结快速成型设备硬件电路设计与搭建,提出了一种低成本的控制系统解决方案。其主要包括USB通讯模块简化设计、控制芯片低成本选型及其最小系统设计、对铺粉模块结构与控制方式的低成本优化设计、控制系统电源设计。并对激光烧结快速成型系统软件进行了设计与研究,设计了下位机的软件任务包括:通讯任务、G代码编译任务、激光器控制任务、其它任务。将G代码的解释编译工作移交给下位机,针对设备的特殊结构设计了对应的G代码编译算法,通过软件的设计降低了硬件的成本。验证了控制系统的稳定性和加工时的重要参数,本文通过对激光功率稳定性测试、激光光斑运动速度测试、控制系统精度测试将测量数据与加工样件对比验证了控制系统的功率与速度的同步控制,激光扫描与铺粉的协调控制方案可行。通过本课题的研究,在满足加工要求的同时有效降低了激光烧结快速成型设备的硬件成本。
[Abstract]:With the transformation of domestic manufacturing industry, laser technology began to be applied in the field of industrial manufacturing. Laser sintering rapid prototyping equipment is also developing rapidly, which provides a new solution for parts processing. In the complex parts of the processing advantage is more obvious. This paper aims at the disadvantages of high control cost and low compatibility with traditional NC machining equipment. In order to reduce the control cost of the equipment, a low cost laser sintering control system with Arduino as the control core is designed. The hardware construction method of the control system is described in detail, and the optimization design of the powder laying module is carried out. The algorithm of control system is studied and the software is designed. The main contents of this paper are as follows: the control system of laser sintering rapid prototyping equipment is designed. The construction method of the hardware of the equipment and the programming of the task and the program structure of the software of the lower computer are put forward. The hardware circuit of laser sintering rapid prototyping equipment is designed and built, and a low cost control system solution is proposed. It mainly includes the simplified design of the USB communication module, the low cost selection of the control chip and its minimum system design, the optimization of the structure and control mode of the powder laying module, and the design of the power supply of the control system. The software of laser sintering rapid prototyping system is designed and studied. The software tasks of the lower computer include: communication task code compiling task, laser control task, and other tasks. The interpretation and compilation of G code is transferred to the lower computer, and the corresponding G code compilation algorithm is designed for the special structure of the equipment, which reduces the cost of hardware through the design of software. The stability of the control system and the important parameters in machining are verified. The stability of laser power and the velocity of laser spot motion are tested in this paper. The precision test of the control system compared the measured data with the machining sample to verify the synchronous control of the power and speed of the control system. The coordinated control scheme of laser scanning and powder laying is feasible. Through the research of this subject, the hardware cost of laser sintering rapid prototyping equipment is reduced effectively.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG665
本文编号：2163608
[Abstract]:With the transformation of domestic manufacturing industry, laser technology began to be applied in the field of industrial manufacturing. Laser sintering rapid prototyping equipment is also developing rapidly, which provides a new solution for parts processing. In the complex parts of the processing advantage is more obvious. This paper aims at the disadvantages of high control cost and low compatibility with traditional NC machining equipment. In order to reduce the control cost of the equipment, a low cost laser sintering control system with Arduino as the control core is designed. The hardware construction method of the control system is described in detail, and the optimization design of the powder laying module is carried out. The algorithm of control system is studied and the software is designed. The main contents of this paper are as follows: the control system of laser sintering rapid prototyping equipment is designed. The construction method of the hardware of the equipment and the programming of the task and the program structure of the software of the lower computer are put forward. The hardware circuit of laser sintering rapid prototyping equipment is designed and built, and a low cost control system solution is proposed. It mainly includes the simplified design of the USB communication module, the low cost selection of the control chip and its minimum system design, the optimization of the structure and control mode of the powder laying module, and the design of the power supply of the control system. The software of laser sintering rapid prototyping system is designed and studied. The software tasks of the lower computer include: communication task code compiling task, laser control task, and other tasks. The interpretation and compilation of G code is transferred to the lower computer, and the corresponding G code compilation algorithm is designed for the special structure of the equipment, which reduces the cost of hardware through the design of software. The stability of the control system and the important parameters in machining are verified. The stability of laser power and the velocity of laser spot motion are tested in this paper. The precision test of the control system compared the measured data with the machining sample to verify the synchronous control of the power and speed of the control system. The coordinated control scheme of laser scanning and powder laying is feasible. Through the research of this subject, the hardware cost of laser sintering rapid prototyping equipment is reduced effectively.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG665
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