机床

Taking plane curve machining for example, the motion schemes of machine tools with two freedoms are presented.

以平面曲线加工为例，给出了所有两自由度机床的运动方案。

At the draft-design stage, comparative analysis of possible configuration in terms of pliability and geometric precision is undertaken by means of automated computational systems.

在设计的初期阶段，根据其性能对其最可能的配置进行比较分析，自动化系统保证了机床的精密性。

For today's tendency, machine tool has the pliancy system and become machine center.

以现在的发展趋势来看，组合机床的多工为加工如果加入柔性系统则发展成今天的加工中心。

Plication , as well as t he importance of CAD in application of NC machine.

应用效益的技术途径及计算机辅助设计在数控机床应用中的重要作用。

From computer chips to sophisticated machine tools, the production of goods is plunging.

从电脑芯片到精密机床，各种商品的产量都在下跌。

During the fabrication of big capacity and high lift crane, Crane Company is the first to use the advanced polygonal line technics-- American patent and the special machine for fabrication of polygonal line drum--national patent. The successful use of such advanced technics resolved completely the wire rope enwinding of high lift hoist. It reduced the crane weight and improved the performance of crane.

在大吨位高扬程起重机制造中，首先采用了美国专利的莱伯斯折线卷筒技术和获国家专利技术的折线卷筒加工专用机床，这些技术的成功运用，彻底解决了高扬程启闭机钢丝绳缠绕问题，减轻了起重机的重量，提高了设备性能，使用这项技术的几十个水电站起重设备均取得了良好的效果。

Based on the study of IGES; STEP, especially the study of DXF, a program interface is developed, by which the data can be shared among different CAD systems. According to the different Characters, the respective tool paths are designed. And by a machine configure file, the General postposition process is deal with. On the research of the general simulation technology that is based on the NC codes. By analyzing the characteristics of the CNC system and the NC codes, a set of general simulation interface is developed.

通过对IGES和STEP等产品数据交换标准的探讨，尤其是对应用广泛的DXF的深入分析，建立了与不同CAD系统实现数据共享的编程接口；根据零件的不同加工特征提出了相应的走刀路线，并通过机床配置文件，初步实现了通用后置处理；研究了数控系统和NC代码的特点，建立了仿真通用接口，并提出代码翻译地基本思路。

The method of reading the line, arc, spine, tolerances, surface roughness and full messages of the part from DXF file generated by AutoCAD is mainly introduced. Based on the study of DXF, a program interface is developed, by which the data can be shared among different CAD systems. According to the different Characters, the respective tool paths are designed. And by a machine configure file, the General postposition process is deal with. On the research of thegeneral simulation technology that is based on the NC codes. By analyzing the characteristics of the CNC system and the NC codes, a set of general simulation interface is developed.

本文主要介绍如何从AutoCAD生成的DXF文件中读取直线、圆弧、样条曲线、尺寸公差、表面粗糙度等信息及零件的全局信息，结合回转体零件的特点，通过对应用广泛的DXF的深入分析，建立了与不同CAD系统实现数据共享的编程接口；根据零件的不同加工特征提出了相应的走刀路线，并通过机床配置文件，初步实现了通用后置处理；研究了数控系统和NC代码的特点，建立了仿真通用接口，并提出代码翻译地基本思路。

The classical cutting stock algorithm——column generation technology , and wrap up rectangle technology for abnormity are analyzed ; The development of AutoCAD with ObjectARX is studied and the generating method of cutting outline drawing and layout drawing were found out on the basis of analyses of the graph database structure of AutoCAD and the basic operation of it ; The process planning technology of plate material cutting orienting numerical control is studied a process planning method directly based on layout drawing is established ; The emulation technology in AutoCAD is studied and a kind of dynamic emulation method is put forward , which is realized by incrementally modifying graph entity ; The postposition of NC program of the integrated cutting system constructed on software plug-in is proposed , which can effectively solve the problem that it is difficult for a numerical control programming system to be common , which is caused by the difference of instruction format and control parameter between different type of numerical control machine .

分析了经典的矩形件优化排样算法——列生成法和针对异形件的矩形包络算法；研究了基于ObjectARX 的AutoCAD 开发技术，结合对AutoCAD 图形数据库结构及其基本操作的分析，给出了下料轮廓图和排样图的生成方法；研究了板材数控下料加工的工艺处理技术，建立了一种直接基于排样图进行的图形交互工艺规划方法；研究了在AutoCAD环境中的板材下料数控仿真技术，给出一种通过增量修改图形实体对象实现的动态仿真方法；提出以软插件技术构建集成下料系统的数控编程后置处理部分，能够有效解决因数控下料机床指令格式及控制参数不统一导致的自动编程软件系统不易实现通用性的问题。

In this paper, the autocontrol to potentiometer drill machine by industrial computers will be achieved.

目的是使用工业控制计算机实现对电位器刻修机床的自动控制。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。