针对珩磨孔加工的现状，设计了一种结构简单、易于制作的新珩磨头。
For current situation of the honing hole machining, design a simple structure and easy to produce new honing head.
单价包括在结构中钻孔或开榫眼，不管用什么方法（包括金刚石钻孔、磨孔等）。
UNIT PRICES include for drilling mortices or forming mortices in the structure by whatever means necessary including diamond drilling, abortive holes etc.
磨削加工多联齿轮内孔在工艺上有一定难度，磨孔后易使齿面误差超差造成废品。
It is difficult to grind bore on gear and secure its precision. Especially more linkage gear's precision can not be secured easily, so it maybe become a waste product because of serration error.
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