针对加工中心研制了主轴锥孔陶瓷衬套，使机床的性能得到改善。

Taper ceramic bushing for spindle is developed for machining center, so that the performance is improved.

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加工中心是指在一次装卡中，能够实现自动铣削、钻孔、镗孔、铰孔、攻丝等多工序的数控机床。

Machining Center is installed in a card, to achieve automatic milling, drilling, boring, Reaming, Tapping and other processes of CNC machine tools.

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介绍在硬齿面直齿锥齿轮刮削加工中研中心孔磨内孔的技术要求；机床调整，切削速度，刮削量及次数的选择。

The introduction is the strong and straight cone the wheel gear pare away to process the inside, whetting center the bore, whetting the inside bore in the strong wheel gear.

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