靠模

He has extensive experience in all facets of database systems development, including developing and teaching database and data modeling classes, systems analysis and design, database and system administration, and data analysis.

他在数据库系统发展的所有方面中有广泛的经验，包括发展与教学数据库和数据靠模切班级、系统分析和设计、数据库和系统行政、数据分析等等。

Profile modeling ; Curve ; Curved surface ; Motion orbit ; Outside curve

因此，有必要对靠模曲线与曲面轮廓线之间关系做以探讨。以仿形车削回转球面为例，讨

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

B. According to the material shear modulus depends on the width of the adjustment, or fixture.

b。根据被剪材料的宽度调整靠模或夹具。

The rebuilt machine, in which characteristic of lathe, feature of milling machine and advantage of explorator are integrated, is a key unit of the system.

改造后的机床是本系统里面至关重要的部分，它打破了传统车床和卧式铣床的界限，同时结合了硬靠模的结构特点，成为一种独特的新型机床。

The headstock uses standard spindle, it support from the first kind tapping explorator organization to tap and use it to guarantee screwed hole location accuracy.

主轴箱采用标准主轴，借助第一类攻丝靠模机构对其进行螺纹加工从而保证螺纹孔的位置精度。

When manufacture part which with curved surface by of contour machining,the shape of profile modeling is not as same as the part,they also without simple relation of minify or magnify.

仿形车、铣加工曲面零件，主要是通过靠模曲线来实现的，靠模曲线形状通过带有滚轮的靠模触头传递到刀具上，加工出零件所需的曲面形状。靠模曲线与零件曲面有什么样的关系？

It established the electricity eqoipment,motive box,depending the mold device,bed body,singn pillar and sign pillar base etc.a series of equipments.

总体设计中设置了电气装置、动力箱、主轴箱、靠模装置、床身、立柱、立柱底座等一系列装置，并且满足结构合理、简单、实用的要求。

By cooperating the two-model method with parallelogram frame in this paper, the curve of two crossed cylinders with their axises in a state of vertical can be easily and accurately realized, and the mechanism withdrawn from the method can be applied directly to the hole gas-cutting on high pressure capsules.

文摘：采用双靠模法与平行四边形机构的组合，可简易、准确地实现轴线垂直的两圆柱体相贯线轨迹的复现，其原理可直接用于压力容器上圆孔的气割。

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

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。