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本文介绍了UMAC在五轴义齿雕刻机数控机床上的应用。本系统充分利用UMAC运动控制器的多轴控制功能,很好地实现了五轴联动的控制。该系统具有加工速度快,控制精度高、稳定性好等特点。 相似文献
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本文介绍了UMAC在五轴义齿雕刻机数控机床上的应用。本系统充分利用UMAC运动控制器的多轴控制功能,很好地实现了五轴联动的控制。该系统具有加工速度快,控制精度高、稳定性好等特点。 相似文献
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主要研究了基于PC的开放式数控系统功能实现的方案与关键技术。在分析了开放式数控系统应用现状并阐述了PC数控系统结构及开放式数控系统构成的基础上,完成了低成本、可重构的开放式数控系统的设计及系统开放式软硬件体系的建立,系统控制器通过编程完成对输入、输出量的规划过程,通过PID控制伺服电机的输出,从而实现对伺服电机轨迹输出的优化控制目标,实现交互控制机制的开发,该模块化可重构系统在降低系统成本的同时显著提高了使用性能,具备较高的实际应用价值。 相似文献
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论述了PC的开放式数控系统在Windows操作系统上的实现,以开发的数控切割机为例着重介绍了全软件型NC的软件结构,并讨论了在系统实时性方面的实现方案。 相似文献
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黄庆云 《自动化与仪器仪表》2009,(2):30-32
在对开放式数控系统的功能要求的分析基础上,对系统的硬件和软件进行了合理的功能配置。并由此进行了基于ARM的开放式数控系统的总体设计;详细介绍了系统的原理与构成:根据系统微型化、高性能、低成本、便携性的要求,在系统硬件设计时,选用了低功耗、高性能、成本低的微处理器,选用开放源代码的UC1inUX作为实时操作系统,构成了简单易学易操作的开放式数控系统。 相似文献
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随着计算机技术的发展,数控系统正在发生着日新月异的变化.本文介绍了开放式数控系统的特征以及比较了当前开放式数控系统的几种模式.通过目前3种开放式数控系统体系模式的分析,对开放程度以及开放式数控系统所需要解决的问题进行了探讨. 相似文献
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This paper attempts to propose a virtual operating system applied to operation training of manufacturing facility and manufacturing process simulation. The system is based on VRML and browser/server structure, so user only needs to install a free plug-in, and run the package normally via Microsoft Internet Explorer. Initially this paper studies the system framework, structure models and concept models. Then, a communication approach based on VRML, Java and HTML, which is key to realize the virtual operating of CNC machines, has been presented. The algorithm of material removed simulation based on VRML Z-map is also presented in this paper. It has the advantages such as a lower memory requirement, and a faster computation speed. Finally, in order to validate the feasibility of the proposed approach, the CNC milling machine has been taken as an illustrative example for the prototype development. 相似文献
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Object-oriented design support system for machine tools 总被引:3,自引:0,他引:3
This paper deals with an object-oriented intelligent design support system which is intended to assist in the basic design of machine tools, in particular machining centres. The machine tools design process is analysed through interviews with experienced designers, and an object-oriented model is established to represent the design process. Software modules named design objects are proposed, which are basic components for the implementation of an intelligent design support system for machine tools. A prototype of the design support system for machining centres is developed based on the design objects, and some case studies are carried out to verify the effectiveness of the methods proposed. 相似文献
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为实现数控机床的网络化管理,针对目前一些老式机床无远程监控平台的问题,提出了基于嵌入式Linux的数控机床远程监控系统的设计与实现方案.该方案采用嵌入式Linux与ARM处理器为平台,软硬件结合,完成车间级监控主机与局域网内各机床之间的通信,并利用嵌入式数据库对机床状态信息进行实时备份,达到对局域网内多台机床进行集中监控管理的目的.该方案的智能控制模块可根据接收到的机床报警信息,向机床发送相应的控制命令,保护机床正常运行;车间级监控主机还可直接接入Intemet,以便将机床的数据发送到远程进行故障诊断.实验结果表明,该方案可以有效的对老式机床进行集中监控,实现了数控机床的网络化管理. 相似文献
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针对新一代开放式数控系统的特征要求,提出一种基于ARM和CPLD、以Windows CE为操作系统的开放式数控系统方案。介绍了系统的软硬件平台开发,重点讨论了系统核心部分中断控制的实现方案,包括Windows CE系统中断服务、应用程序中断响应和CPLD程序。 相似文献
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马旭 《计算机工程与应用》2017,53(14):51-55
针对工程实践中时常出现超高精度计算的程序设计需求,分析超高精度乘、除法运算规则,提出超高精度整数与普通整数的乘除法运算算法及两个超高精度整数的乘除法运算算法,并分别给出时间复杂度分析及实验数据。给出3个完整的C语言程序,分别完成指定整数高次幂的精确计算并输出、按超高精度要求输出两个普通整数的商、超高精度求圆周率并输出。实验结果证明,在现有的常规软件及语言下,提出的超高精度计算的程序设计方法在工程实践中是简单可行的。 相似文献
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引入J2EE架构体系,研究并实现了基于Web的机床售后服务系统.提出了在J2EE平台上应用MVC模式开发机床网络化服务系统的方法,增强了系统的健壮性和可扩展性.详细介绍了机床售后服务系统的功能,并引入了基于TBAC的动态访问权限控制策略,弥补了RBAC的不足,简化了规模较大的协同系统的访问权限的分配和管理.采用案例检索和关键字查询相结合的方法,提高了检索的效率. 相似文献
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Non-linear parametric curves, such as B-spline curves, are becoming increasingly available in modern CNC (Computer Numerical Control) systems. The smoothness of parametric curves offers higher order of continuity and thus invokes less vibration in machines as compared to short line segments. Nevertheless, the computations for velocity limit curves, velocity profiles and interpolation points are quite complicated and time-consuming and therefore approximation methods are applied. Unnecessary accelerations and decelerations, which cost additional time of motion, can be caused by inaccurate computations of the velocity limits around tiny corners. To overcome the problem, the unit arc length increment scanning method (UALISM) is proposed to reduce the time of movement and to improve the efficiency. The scanning interval is fixed at 1 BLU (basic length unit) which is irrelevant to the type, size and shape of the tool path curve. The constraints of chord height errors and axis accelerations are considered and the velocity limit for the specified scanning point is computed using the coordinates of multiple scanning points near the specified scanning point. Simulation results show that the unnecessary accelerations and decelerations can be avoided and thus the total motion time can be reduced by UALISM. 相似文献