进给运动

The mainly working elements are: crankshaft and clamp are built on the imovable table-board. The headstock has aiguille and it follows dragging board to come true the boring athletics.The landscape orientation of dragging board, the up and down sport of shaking-arm and the running of dragging board turn up the modulating of working station.

其大体工作原理如下：曲轴和夹具安装在固定不动的平台上，装有钻头的主轴箱随进给拖板实现钻削进给运动，工作位置的调整是通过大拖板横向运动、摇臂的上下运动、摇臂的转动来实现的。

The circuit armature of the stepping motor was led Out by using the module of carbon brush and collector ring.

装置的切削主运动由液压马达直接驱动，进给运动由步进电机驱动。

The underwater pipeline tapping machine meets working needs by introducing such design as using hydraulic system as power source, putting transmission box to the bottom of machine, setting safety clutch in feeding system, having fast translation function of the spindle, detecting the spindle translation with differential, using dial to display and seting feed depth.

水下管道开孔机以液压系统为动力，采用传动箱下置、进给系统中设置安全离合器、主轴带有快进和快退功能、差速器检测主轴的进给运动、刻度盘指示和设定开孔深度等设计方案，满足了水下管道开孔作业的要求。

The following areas: design of transmission of the table, mainly the use of ball screws; the overall structure of the design table to understand the strengths and weaknesses, take full account of the principal contradiction, merit-based selection; control system design, its applications become more familiar with the Stepper motor-driven feed location can be accurate but the drawback is the lack of output power, so consider the source of the hydraulic motor as the driving force and the stepper motor drive system into the compound, hydraulic feeding Although it is impossible to locate, but with high output power, the two complement each other, so that accurate feed motion can be stable.

有以下几个方面：工作台的传动机构设计，主要是滚珠丝杠的运用；工作台整体结构的设计，了解优缺点，充分考虑主要矛盾，择优选取；控制系统的设计，进一步熟悉其应用步进电机驱动进给可以进行准确的定位但有个缺点就是输出力不足，所以考虑将液压电机作为动力源与步进电机驱动进给系统复合，液压进给虽然无法进行定位，但具有高输出力，二者优势互补，使进给运动可以准确稳定的进行。

The feed motion is projected into each feed axis, and based on its mechanical model(motor driving torque/force, Inertial force and cutting force), the constraint relationship between feedrate, feed acceleration, and feed drive capabilities and toolpath geometric characteristics is derived. With this constraint model, the acceleration and deceleration of each axis can be limited within its capability.

将进给运动分解到各运动轴，根据机床进给轴的力学(电机驱动力／力矩、进给系统所受的惯性力及切削力)模型，推导了多轴联动加工时进给速度、加速度与各进给轴驱动能力以及加工路径几何特性之间的约束关系，使得加工过程中机床各运动轴的加减速始终处于其加工能力范围内。

Two-way from the X-Y table driven precision CNC workpiece completed X, 2 Y direction of the movement to X, Y, Z direction of the 3 Feed Movement ball screw, by AC servo motor drive.

由X-Y双向精密数控工作台带动工件完成X， Y两个方向的进给运动；X， Y， Z三个方向的进给运动均滚珠丝杠，并由交流伺服电机驱动。

Knife rest vertical to enter, give sport and horizontal to stock for sport to can be linked, cut order by artificial control even.

刀架的纵向进给运动和横向进给运动不能联动，切削次序也由人工控制。

Hydraulic planer the advantages of a smooth drive, theintroduction of hydraulic drive, ram a uniform velocity,and canachieve variable speed; load capacity than the general mechanicaltransmission large Shaper;ram can be in any position toimmediately stop or start;Stage movement to apply the hydraulicdrive,feed rate can be in a certain range without adjustments;Machine done by hydraulic valve protection, are not too easy todamage the machine parts;Part of the oil is not easy to workwear, so long machine life;manipulating simple andconvenient.

液压刨床的优点是传动平稳，由于采用液压传动，滑枕的运动速度均匀，且可实现无级调速；负荷能力比一般机械传动的牛头刨床大；滑枕可以在任何位置上立刻停止或起动；工作台的进给运动也采用液压传动，进给量可以在一定范围内无级调整；机床由液压安全阀做保护，过载时不容易损坏机床的零部件；零件在油里工作不易磨损，因而机床寿命长；操纵简单，使用方便。

Ordinary lathe knife rest vertical and crosswise enter, give sport to turn from main shaft round sport hang wheel transmit, with cross, enter give gearbox, drive, slip away board case by mere thick stick or guide screw, vertical to slip away the board, slip away board move sideways.

普通车床刀架的纵向和横向进给运动是由主轴回转运动经挂轮传递而来，通过进给变速箱后，由光杠或丝杠带动溜板箱，纵溜板，横溜板移动。

Hydraulic planer the advantages of a smooth drive, the introduction of hydraulic drive, ram a uniform velocity,and can achieve variable speed; load capacity than the general mechanical transmission large Shaper;ram can be in any position to immediately stop or start;Stage movement to apply the hydraulic drive,feed rate can be in a certain range without adjustments; Machine done by hydraulic valve protection, are not too easy to damage the machine parts;Part of the oil is not easy to work wear, so long machine life;manipulating simple and convenient.

液压刨床的优点是传动平稳，由于采用液压传动，滑枕的运动速度均匀，且可实现无级调速；负荷能力比一般机械传动的牛头刨床大；滑枕可以在任何位置上立刻停止或起动；工作台的进给运动也采用液压传动，进给量可以在一定范围内无级调整；机床由液压安全阀做保护，过载时不容易损坏机床的零部件；零件在油里工作不易磨损，因而机床寿命长；操纵简单，使用方便。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。