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发明公开
CN104858478A 钻套 无效 - 驳回

钻套
摘要：
本发明涉及一种钻套，包括钻套连接部、钻套座，所述的钻套连接部设置于所述的钻套座上，所述的钻套座下面设有用于与钻模板或夹具体连接的钻尖引导部，所述的钻套座和所述的钻套连接部的材质为钢，所述的钻尖引导部的材质为硬质合金。本发明的钻套保证了加工孔径和孔间距的精度，避免了频繁更换钻套而提高生产效率，降低生产成本。
摘要（英）：

The invention relates to a drill bushing which comprises a drill bushing connecting part and a drill bushing seat, wherein the drill bushing connecting part is arranged on the drill bushing seat; a drill tip guiding part used for being connected with a drill template or a fixture is arranged below the drill bushing seat; the drill bushing seat and the drill bushing connecting part are made of steel; the drill tip guiding part is made of a hard alloy. Through the adoption of the drill bushing, the precision of the machining hole diameter and hole spacing is guaranteed, the frequent replacement of drill bushings is avoided so as to improve the production efficiency, and the production cost is reduced.

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