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Then introduce how to choice machine, machine tool, toolholder, balance tool, tool safety, cutting parameter and cooling.4 Grouping clamp is one of the most important in the grouping technology. The grouping clam influences the effect of grouping technology. Author analyses the characteristic of designing grouping clam.5 The result has applied to the works, it validates the correctness of research.

在本文中从机床选取、刀具选取、刀具夹紧方式的选取、刀具动平衡、刀具安全性、切削用量的选取以及冷却技术等方面进行介绍。4、成组夹具是实现成组加工的有利保证，夹具的好坏直接关系到成组加工效果，本文分析了成组夹具设计特点，介绍一种孔加工成组夹具。5、以上成果已应用到生产中去，取得了显著效果，验证了研究的正确性。

General machine tool 'numerical control melt reclaim undertaking be in the ascendant from, upratein our country for the moment form down move in bulk malfunction tool above all crowd idle general machine tool proceed rebuild, up upgrade,withal lesser project into as soon as possible gotten these batch EQUIPment at economic development exert EFFiciency, create benefit,the one term nonnegligible problem of the forsooth yes heap enterprise.

普通机床的数控化改造事业方兴未艾，在我国目前形式下将大批故障机床尤其是一大批闲置的普通机床进行改造、升级，以较小的投入尽快使这批设备在经济发展中发挥效能、创造效益，的确是许多企业的一项不可忽视的课题。

Error analysis In order to analysis the pose error of the hexapod machine tool, considering the characteristics of the parallel mechanism,"analysis on the error prominency factors for the hexapod machine tool pose error"is proposed. Numerically, the error prominency factor can express the influence on the pose error of the tool resulted from the mechanism parameter error within the whole workspace.

四、位姿误差分析为了定量地对并联机器人机床位姿误差进行分析，结合并联机构的特点，首次提出了&并联机器人机床位姿误差放大因子分析法&，因位姿误差放大因子是反映机床机构参数误差对刀具末端误差影响大小的机床工作空间内的统计值，因此既可作为机床结构参数精度设计的依据又可对机构参数进行优化。

Now has casting, machining, finishing, flat-panel and other refinements of the workshop, the main products are cast iron flat-panel, flat line, the assembly of flat, square box, V-Rail, V-plane, parallel flat foot, the bridge-ping feet square, feet, machine-specific point of foot, bending plate, ladder Sizing Block, contour Sizing Block, migraine pendulum tester, gear beating device, machine tool inspection wand Adjustable Sizing Block Machine, Machine Tool Sizing Block shockproof, special wrench , explosion-proof tools, such as on-arc model; granite platform, flat feet, feet, square box, V-blocks, granite, table, Block, measuring instrument, such as granite.

现在有铸造、机加工、精加工、精研平板等车间，主要产品有铸铁平板、划线平板、装配平板、方箱、V型铁、V型架、平行平尺、桥型平尺、直角尺、方尺、机床专用角度尺、弯板、阶梯垫铁、等高垫铁、偏摆检查仪、齿轮跳动仪、机床检验棒、机床可调垫铁、机床防震垫铁、特种扳手、防爆工具、对弧样板等；花岗石平台、平尺、方尺、方箱、V型块、花岗石表座、花岗石测量仪等。

Now has casting, machining, finishing, flat-panel and other refinements of the workshop, the main products are cast iron flat-panel, flat line, the assembly of flat, square box, V-Rail, V-plane, parallel flat foot, the bridge-ping feet square, feet, machine-specific point of foot, bending plate, ladder Sizing Block, contour Sizing Block, migraine pendulum tester, gear beating device, machine tool inspection wand Adjustable Sizing Block Machine, Machine Tool Sizing Block shockproof, special wrench , explosion-proof tools, etc.; granite platform, flat feet, feet, square box, V-blocks, granite, table, Block, measuring instrument, such as granite.

现在有铸造、机加工、精加工、精研平板等车间，主要产品有铸铁平板、划线平板、装配平板、方箱、V型铁、V型架、平行平尺、桥型平尺、直角尺、方尺、机床专用角度尺、弯板、阶梯垫铁、等高垫铁、偏摆检查仪、齿轮跳动仪、机床检验棒、机床可调垫铁、机床防震垫铁、特种扳手、防爆工具等；花岗石平台、平尺、方尺、方箱、V型块、花岗石表座、花岗石测量仪等。

This paper also makes a experimental study of the regularities of the outstripping machining in aspects of machine tool, cutting tool, cutting conditions and so on, and points out that the outstripping phenomenon occurs on the following conditions: the machine tool with high precision, the PCD cutting tool with small clearance and lay angle, the small installation angle, the small feed rate and the cutting lubricant with good properties, and that the cutting speed and the depth of cut have no effects on the outstripping machining.

本文还从机床、刀具和切削条件等方面对超越性加工的规律进行了实验研究，指出超越性加工现象是在如下条件下产生的：较高精度的机床、后角和刃磨纹理角较小的PCD刀具、较小的安装角和较小的进给量以及冷却润滑性能良好的切削液，而切削速度和切削深度对超越性加工几乎没有影响。

According to the wire electrode on the trajectory of the different forms of control, WEDM can be divided into three types:* is a copy-control, cutting their lines in advance to create the shape of the workpiece and the same mode *, When the rough machining parts and die at the same time * Clamping in the machine tool table, in the process of cutting wire electrode tightly * close to the edge of model for mobile track, thus cutting out the model * with the same shape and precision to work; another One is the optical tracking control, the cutting in line before the first parts in accordance with drawings by a certain ratio of enlarge depicts an electro-optical tracking maps, drawings will be processed when the machine electro-optical tracking placed on the stage, followed on the stage The first photo has to follow the ink line graphics track movement, and then through the use of electrical, mechanical linkage to control the machine tool table work together with the relative electrode wire Xiang Sixing do sports in order to cut out the pattern and shape of the workpiece to the same; a re - Is a digital process control, advanced digital automatic control technology, machine-driven process in accordance with the geometry of the workpiece before the parameters of good pre-processing CNC automatic completion of the processing, production do not look like without drawing board also plans to enlarge, in front of more than two Control in the form of higher precision processing and broad scope of application, at home and abroad for more than 95% of WEDM have been using digital technology.

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*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*模，加工时把工件毛坯和*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*模边缘作轨迹移动，从而切割出与*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。

Dongguan Chorbr Tool Measuring Co.,Ltd is operating States Department of various brands of machine tools, measuring tool and die parts, machine tool accessories, industrial oil, abrasive abrasive, magnetic tool and die steel, and hand tools, electric tools, pneumatic tools and machining center tools and other products company.

东莞市南城东引五金工具经营部是经营各国多种品牌的切削工具、测量工具、模具配件、机床附件、工业用油、磨具磨料、磁性工具、模具钢材、手动工具、电动工具、气动工具、加工中心工具等产品的公司。

Dongguan Chorbr Tool Measuring Co.,Ltd is operating States Department of various brands of machine tools, measuring tool and die parts, machine tool accessories, industrial oil, abrasive abrasive, magnetic tool and die steel, and hand tools, electric tools, pneumatic tools and machining center tools and other products company.

企业介绍：东莞市南城东引五金工具经营部是经营各国多种品牌的切削工具、测量工具、模具配件、机床附件、工业用油、磨具磨料、磁性工具、模具钢材、手动工具、电动工具、气动工具、加工中心工具等产品的公司。

Affiliated companies, mainly engaged in machine tool and machine tool attachment and sale of products, main products have Evertop Series multi-axis drilling, EVERTOP gantry drilling machine and special drilling machine series, GLODEN GOOSE drill chucks, tap chucks series.

本公司属台湾鑫长虹实业有限公司的下属公司，主要从事机床及机床附件产品的生产及销售，主要产品有EVERTOP多轴钻孔器系列，EVERTOP龙门钻床及专用钻孔机系列，GLODEN GOOSE钻夹头，丝锥夹头系列。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。