查询词典 NC

On applying the theory of differential geometry, the research shows the procedure for determining the required cutter path for cutting conical cam profile using a NC milling machine based on the analytical profile expression of conical cam with oscillation conical roller follower or with a translating conical roller follower established in 3D space. The analytical expression of cutter path is provided for a tapered endmill cutter, whose size may be identical to or smaller than that of the conical roller.

应用微分几何理论，以在3维空间所建立的圆锥滚子摆动从动件和直动从动件圆锥凸轮机构凸轮廓面的解析表达式为基础，对数控铣床加工圆锥凸轮廓面所需刀具轨迹方程的建立方法进行了研究，根据所采用的锥形刀尺寸等于或小于圆锥滚子尺寸的情况，推导出相应的刀具轨迹方程的解析表达式。

The CAD/CAM process of the handle part was implemented, including constructing 3D entity modeler, creating tool path, computer simulating, postprocessing cutter location files into tape files for a specific machine tool, transferring machining information of the handle part by the Network-based CAD/CAM Prototype System, NC machining of the handle part at last.

利用网络化CAD/CAM原型系统实现手柄零件CAD/CAM过程，包括手柄三维实体造型、刀位轨迹生成、计算机仿真检验，后置处理生成特定机床的G代码，通过网络传输手柄零件加工信息，最后完成手柄零件的数控加工。

A milling method of space index cam s on 2-Axis NC machine;2. In this paper some equations of moving track of tool to mill different space index cam s are presented and can be directly applied to practice.

给出了加工各种空间分度凸轮的刀具运动轨迹方程，可以直接应用于生产实际，并介绍了在 Auto CAD上实现空间凸轮刀具中心轨迹的动态仿真和三维几何造型的方法。

Wire electrode based on the trajectory of the different forms of control, WEDM can be divided into three types: one is shaped by the imitation controlled cutting in line in advance and work to create the same shape by mold, when processing the workpiece at the same time rough and on the mold clamping in the machine tool table, in the process of cutting wire electrode tightly against the mold on the edge of the track for the mobile, thus cutting out and die on the same shape and precision to the workpiece; another One is the electro-optical tracking control, to carry out the cutting line, before the basis of certain parts to enlarge the proportion of drawings depicts an electro-optical tracking map-processing machines will be placed in design stage of electro-optical tracking, tracking platform Photoelectric first line of graphics has always been to follow the track of the Mexican campaign, and then through the use of electrical, mechanical linkage to control the machine tool table, together with the workpiece so相似形wire electrode relative movement, thus cutting out the same shape and design to the workpiece; again a digital control, the use of advanced automatic control of digital technology-driven machine tool in accordance with the pre-processing parameters according to the workpiece geometry pre-processing procedures for the preparation of a good CNC auto-complete processing, the production does not require appearance on board the need to map to enlarge map of the previous two form of control has a higher machining accuracy and a broad range of applications, both at home and abroad more than 95% have adopted WEDM NC.

根据对电极丝运动轨迹的控制形式不同，电火花线切割机床又可分为三种：一种是靠模仿形控制，其在进行线切割加工前，预先制造出与工件形状相同的靠模，加工时把工件毛坯和靠模同时装夹在机床工作台上，在切割过程中电极丝紧紧地贴着靠模边缘作轨迹移动，从而切割出与靠模形状和精度相同的工件来；另一种是光电跟踪控制，其在进行线切割加工前，先根据零件图样按一定放大比例描绘出一张光电跟踪图，加工时将图样置于机床的光电跟踪台上，跟踪台上的光电头始终追随墨线图形的轨迹运动，再借助于电气、机械的联动，控制机床工作台连同工件相对电极丝做相似形的运动，从而切割出与图样形状相同的工件来；再一种是数字程序控制，采用先进的数字化自动控制技术，驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工，不需要制作靠模样板也无需绘制放大图，比前面两种控制形式具有更高的加工精度和广阔的应用范围，目前国内外95%以上的电火花线切割机床都已采用数控化。切割属电加工范畴，是由前苏联人发明的，我国是第一个用于工业生产的国家，当时由复但大学和苏州长风机械厂合作生产的这是最早的机型叫复旦型，我们国内在此基础上发展了快走丝系统。欧美和日本发展了慢走系统LS

To achieve compound machining by utilizing multiple spindle NC machine tool is one of the most popular international machining technology, and it belongs to advanced manufacturing technology.

利用多轴数控机床实现复合加工是目前国际上流行的加工工艺之一，属先进制造的一种。

The applications of user subprograms,macroprograms and tool plane exchanging in NC milling programming are introduced briefly.

简略介绍了用户子程序、宏程序及刀具平面转换在数控铣削加工编程中的应用，并以实例的形式进行了其应用说明，对读者有借鉴作用。

The development of automatic Tool Change,s tool house in recent years seems to have gone beyond the NC Center for supporting the role of technology in their unique areas of development to meet the high-precision machine tools, high efficiency and reliability, and more complex tasks, such as the concept of unique products .

自动换刀刀库的发展俨然已超越其为数控加工中心配套的角色，在其特有的技术领域中发展出符合机床高精度、高效率、高可靠度及多任务复合等概念的独特产品。

The virtual noncircular gear grinding NC machine tool is set up in VERICUT.

在VERICUT软件环境下建立了虚拟数控非圆齿轮磨齿机床。

According to different machining models, the approaches of testing and disposing interference are studied, and universal post-processing technique for multi-axis NC tool grinder is discussed.

针对不同的加工模型，论文分析了加工中的干涉判断和干涉处理方法；讨论了数控磨削后处理技术。

The NC remaking scheme of tool grinder is a closed-loop control system, which uses single-chip microcomputer as a control system and step motor as the executive equipment.

以工具磨床刃磨铣刀螺旋刃的数控改造为例，阐述了基于单片机控制的数控改造方法。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。