基于 SAS 机床行业发展的数量化研究

利用SAS软件从证券市场上获取11个典型行业和6家机床公司2008～2013年的庞大经济数据,通过SAS编程借助主成份分析法和多元线性回归分析法建立了影响机床行业发展的模型方程,数量化阐述了机床行业发展指数与国民经济、基础设施和房地产三者发展的关系,为机床行业的未来发展及投资提供借鉴。     

机床企业需要深层次的MRP--北京并捷自动化技术服务中心杨景宜副总经理访谈

记者:现在的机床行业虽然仍属于离散制造业,但是它已经和传统机床行业的运作不一样了,那么您认为现在的机床企业具有哪些特点,这些特点要求机床企业在管理方面做哪些方面的改进?     

中国机床行业信息化健康状况调查 冲击新高度

我国是机床的生产和消费大国。经过几十年的发展,我国机床行业形成了具有一定生产规模和技术水平的产业体系,尤其是十五以来,面对持续高涨的国内市场需求和良好的政策环境,我国机床行业在质和量上都取得了飞跃。已经形成了一些     

魏德米勒为机械行业提供优质服务

魏德米勒4月份在北京举办的世界机床行业展示会上举办了针对机床行业应用的技术交流会，邀请了沈阳机床，秦川机床等一些著名机床厂的技术人员进行了技术交流。通过这次技术交流会，展示了魏德米勒众多产品在当代机床领域的应用。[第一段]     

组合机床结构方案计算机辅助设计方法研究

正结合某企业多工位钻孔组合机床项目,对组合机床结构设计及计算机辅助设计方法进行了理论研究:建立了机床加工需求表达模型和组合机床设计资源数据库,并对工件加工工序优化方法进行了研究。最后完成了计算机快速设计系统的开发,该系统能够根据输入要求给出具有实际价值的设计方案。一、引言组合机床是自动化程度较高的成套制造装备,具有质量精、效率高和经济性好等特点,是相关行业发展的重要推进力。生产与技术的快速发展对组合机床的研发制造能力也提出了新的要求,效率和质量成为重要的发展方向。本文对组合机床行业做了广泛调研,发现多数组合机床厂家仍依靠设计师的经验或参照相似机床进行设计,设计方案形式单一,而且设计效率不高。     

重庆机床续签开目公司

正近日,重庆机床(集团)有限责任公司(以下简称重庆机床)与开目公司续约。重庆机床始建于1940年,以专业生产齿轮加工机床为主。2007年,重庆机床正式与开目公司结为战略合作伙伴,全面上线应用开目PDM/CAPP系统。受世界经济的影响,中国机床行业在经历了多年的快速增长后,目前已步入转型发展的关键时期,机床行业急需面对有效市场不足,产能放空的现状。为     

运动控制器在机床行业的发展及应用

对我国的机床行业的现状进行了简单的分析,并介绍了三菱的运动控制产品在机床行业的一些应用案例及产品的简介。通过多轴的运动控制器产品实现其在该行业的高速高精度的控制优势。     

沈阳机床的“举重若轻”术

机床行业是典型的“加工一装配”型离散制造行业,产品结构与制造工艺比较复杂,制造过程所需机器设备和工装夹具种类繁多,生产技术类型既有订单型生产、库存型生产,也有订单装配型生产和订单工程型生产,这些特点决定了机床装备行业的信息化的重点、难点和要点。     

中国机床行业信息化的主要症结及解决之道

济南二机床集团信息管理中心副主任孟宝刚 中国机床行业管理信息化的主要症结是缺少具有完善计划管理功能的成熟软件,缺少真正的具有行业实施经验的复合型信息技术的人材. 目前,我国机床行业与国外发达国家相比大多数仍然是大而全的生产组织模式,企业的组织结构和产品构成增大了实施ERP系统的难度.     

数控机床人才尴尬

数控机床市场规模发展越快,人才短缺的瓶颈效应越凸显。对国内数控机床行业而言,这仿佛是个难以自拔的尴尬境地。说不定哪天我就离开机床行业,再也不干这行了。4月11日,在第十二届中国国际机床展览会上,大连机床集团的技术工程师张成(化名)与记者探讨行业发展问题时,很无奈地发出如此感慨。     

基于嵌入式运动控制器的钻床控制系统

目前的数控钻床控制系统体积大、价格高、稳定性差,限制了数控钻的发展。本文研制了基于工控机和固高嵌入式运动控制器的开放式数控钻床控制系统,采用运动控制器实现钻床3轴伺服电机和钻头的运动控制,采用PLC实现机床I/O控制,开发了钻床专用示教盒,利用Visual c＋＋6.0编程语言编写人机界面,采用SA算法实现钻孔路径优化设计。实践应用表明：该控制系统性能稳定,控制精度高,可实现走刀路径的优化。     

An innovative software architecture to improve information flow from CAM to CNC

Over the years, machine tool evolution has allowed faster equipment, using new configurations, to manufacture parts that were almost impossible to machine in the past. Despite this tremendous evolution in machine and control technologies, the metalworking industry is still using the old ISO 6983 G-Codes programming interface to control the motion of these machines. This programming interface is not the most flexible or most appropriate for use by new open-architecture machine controllers and object-oriented high-level machining interfaces such as ISO 14649 (STEP-NC). This work proposes an innovative language, the ‘Base Numerical Control Language (BNCL),’ which is based on a low-level simple instruction set-like approach. The architecture is designed around two concepts: the BNCL virtual machine, which acts as a virtual microprocessor, and the BNCL virtual hardware, which is an abstraction of the machine tool. The language is characterised by its simplicity and flexibility, two qualities that are critical in a market in which the capabilities and performance of machines are constantly improving. The proposed architectural concepts are validated through various computer simulation and physical tests, including performance throughput, trajectory driving, and CNC controller extension capabilities.     

直线伺服6 位置环虚拟轴机床的运动学解耦

使用直线电机驱动虚拟轴机床 ,可满足高速时动态响应和提高精度的要求。如何解决 6位置环虚拟轴机床的强耦合 ,一直是虚拟轴机床伺服控制中的一个难题。为此 ,将局部结构化方法与解耦理论相结合 ,提出一种新的解耦算法 ,从理论上实现了对 6位置环虚拟轴机床的平动和转动之间的解耦     

Machine models and tool motions for simulating five-axis machining

This paper presents a method of determining the tool motion of a five-axis machine. The method is motivated by the imprint point method, where points on the machined surface are computed based on the tool position and tool motion. While simple linear motion can be used as a coarse approximation to this motion, this paper looks at more accurate models of tool motion based on machine kinematics that can be generalized and applied to any CNC machine with one tool head. A kinematic chain is created by decomposing the linear motion of a machine’s translational and rotational axes into parameterized affine transformations, and a hierarchical model of the machine combines the transformations to provide an accurate model of machine motion.     

Development of universal environment for constructing 5-axis virtual machine tool based on modified D–H notation and OpenGL

For construction of a universal 5-axis virtual machine simulation system, a new methodology is proposed in this paper. The OpenGL library is used to render the virtual environment and to display all motions of the virtual machine tool. In order to achieve the universal construction procedures, the D–H notation is adopted. The user interfaces are developed to help users to select the configuration of machine tool. Once the configuration is decided, the motion directions between adjacent links are known and the kinematic parameters are described by D–H notation. Then the post-processor is derived by D–H notation. Finally, the motion control simulation of the virtual machine tool is executed by D–H transformation matrix. This new methodology can assist developers in constructing the simulation system for the universal 5-axis virtual machine tool efficiently and effectively.     

虚拟轴数控机床刀具运动状态的实时规划

提出了虚拟轴数控机床的递阶控制方法, 并着 重介绍了递阶控制的第一级——刀具运动状态实时规划所涉及的切削路径生成、刀具运动路 径计算和刀具运动姿态规划三个关键问题的求解过程, 为虚拟轴机床数控系统的研究开发奠 定了必要的理论与技术基础．     

Retrofitting machine tools with computer control

Many numerically controlled machine tools used in industry predate the era of microelectronics, and rely on controllers based on discrete logic. There are clear advantages in converting these machine tools to computer control. Part programmes can be loaded from a central library over a local area network, and status information can be returned to a central point to help with overall planning. A screen near the machine tool can display helpful information for the operator. Finally, computer control opens the way to integrating the machine tool into a flexible manufacturing system where human operators are partly or completely replaced by robots. This paper describes a simple and automatic way of converting a machine tool to computer control. The method relies on a commercially available microcomputer, and it can be applied to most existing numerically controlled machine tools with a minimum of disturbance.     

基于MCX314控制器的数控机床运动控制系统

分析了传统数控机床控制系统的缺陷，并针对MCX314运动控制器的特点，开发了一种高速度、高精度、高效率和高可靠性的数控机床运动控制系统。该系统已成功应用于某数控机床控制系统中，并且应用效果达到了设计目标。