In addition, the features that typically characterize the NC machining center include the following:
另外数控加工中心的典型特征包括以下方面
(1)Automatic tool-changing capability
(1)自动换刀能力:
A variety of machining operations means that a variety of tools is required.
多种机加工工作一位着需要多种刀具。
The tools are contained on the machine in a tool magazine or drum.
刀具贝安装在刀库或多刀刀库中。
When a tool needs to be changed, the tool drum rotates to the proper position, and an automatic tool changing mechanism, operating under program control, exchanges the tool in the spindle and the tool in the drum.
当一把刀需要被调换时,多刀刀座自动旋转到相应的位置上。自动化的换刀机构。在程序控制下进行,把主轴上需换下的刀和多刀刀座上的刀调换
(2)Automatic workpart positioning
(2)工件的自动定位:
Most machining centers have the capability to rotate the job relative to the spindle, thereby permitting the cutting tool to access four surfaces of the part.
大多数加工中心都可以使工件沿着主轴旋转因此允许刀具达到工件的四个表面
(3)Pallet shuttle
(3)托架滑动装置,平板架:
Another feature is that the machining center has two (or more) separate pallets that can be presented to the cutting tool.
加工中心另一个特点是有两个或多个独立拖板每个拖板都可以调整在刀具上。
While machining is being performed with one pallet in position in front of the tool, the other pallet is in a safe location away from the spindle.
在加工过程中,一个拖板在刀具的前部,另一个拖板在远离主轴的安全位置。
In this way, the operator can unload the finished part from the prior cycle and fixture the raw workpart for the next cycle while machining is being performed on the current workpiece.
这样当机床正在加工当前的零件时。操作人员就可以从上一个工作循环中卸下最终加工好的零件,同时加紧毛坯用于下一个工作循环。