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机床辅助功能

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机床辅助功能(中文3100字,英文1900字)
一种辅助功能液压系统可以用来实现计算机对机床工具单元的数字化控制。液压可以为机床上的锁紧夹头或者卡盘完成打开或者闭合提供动力，也可以向机床的控制系统实时的反馈夹头是出于打开还是关闭的状态信息。
  因为液压系统的分离压力特性克服了初始静态摩擦的影响，机床的尾架可以快速平稳的移动到目标位置装夹工件然后快速的返回初始位置。压力转换器可以显示出尾架相对于工件的位置状态信息。主轴制动器适用于不管是主轴在高速运动的状态下还是发生了系统故障实现一样的制动效果。在后一种情况下，制动发生在夹头的压力损失前更接近缸。同时，转塔卡紧装置锁紧然后解锁刀具转塔。
机床辅助功能
 
An auxiliary-function hydraulic system is provided for a computerize-d  numerical control (CNC) machine tooling unit.
      Hydraulic power is provided for locking collet or chuck to an open or closed position and providing an affirmative collet-open and/or collet-closed signal to communicate the collet position to the host computer.
The tailstock can be brought gently forward to contact a workpiece and can be returned rapidly to the home position, with a break- Away pressure feature being employed to overcome initial static friction. A pressure switch indicates that the tailstock is in position against the workpiece. A spindle brake applies braking to the spindle to stop the same from high speed either on command or in the event of system failure. In the latter case, braking occurs prior loss of pressure to the collet closer cylinder. Also, a turret clamp locks and unlocks a tool changer turret.

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