杠

The upper casting is mounted on ways on this base so that it can be moved back and forth and controlled by means a short lead screw operated by a hand wheel and a calibrated dial.

上刀架安装在底座上，可用受轮和刻度盘控制一个短丝杠使其前后移动。

With a history of nearly 50 years, the Institute has researched and developed the following major technologies and products: vertical/horizontal machining center, precision and ultra-precision machine tool,ball screw, coordinate measuring machine and other precision measuring instruments and equiment,pneumatic-hydraulic/electro-hydraulic technology and concerned products; EDM technology and equipment; NC system and driving device; laser machining technology and relative product; computer application technology,etc.

北京机床研究所具有国内领先的技术水平和实力及近五十年的数控机床技术开发、应用、维护经验，为用户提供全程的、全方位的技术支持服务。近五十年来，我们从事研发的主要技术与产品有：立卧式加工中心；精密及超精密机床；滚珠丝杠副；三坐标测量机及其它精密测量仪器设备；气液电液技术及相关产品；电加工工艺及设备；数控系统及驱动装置；激光加工技术及相关产品；计算机应用技术等。

Feed system uses open-loop control, stepper motor driven by the slowdown after the ball screw. driven Tool for horizontal and vertical movement; After transformation, the introduction of automatic lathe transfer Tool for automatic tool change function; To achieve automatic screw machining, in the original round of the initiative pegged to the installation of the axis of photoelectric pulse generator.

进给系统采用开环控制，由步进电机经减速后驱动滚珠丝杠，带动刀架进行横向和纵向运动；改造后的车床采用自动转位刀架实现自动换刀功能；为了实现自动螺纹切削加工，在原挂轮主动轴处安装了光电脉冲发生器。

Ball screw shafts and nuts are surface hardened for the following reasons.

丝杠和螺母表面淬火的原因如下

The slide surface and lead screw shall be straight and anointed for protection.

a。尾部拉紧装置应工作灵活，滑动面及7丝杠均应平直并涂油保护

It is mainly composed of a fixed body, a movable clamp body, a screw and a nut.

它主要由固定钳身、钳口板、丝杠和套螺母等组成。

The screw nut is of double nut tube type which is single tube 2.5 circuits.

该滚珠丝杠副是双螺母外循环方式的，循环组数为1组2.5圈。

The stepper ball screw nut has been used in a beam monitor system of Beijing proton synchrotron.

本文阐述的步进滚珠丝杠副已应用于北京质子加速器的束流测量系统中。

The new product can reduce the effects on the table of heat generated by the ball screw, since the nut that is in contact with the table is cooled directly.

新产品可以减少对所产生的热量滚珠丝杠表的影响，因为螺母，在与表直接接触冷却。

Linear shaft, bearing, guide, joint bearing, slide unit, ball screw, machinery parts...

直线轴，轴承，导轨，滚珠丝杠，关节轴承，滑动单元，机床附件等

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！