水力锚座加工新方法

针对水力锚座(即球齿座)采用一般机加工工艺性较差、工艺成本高和沉孔粗糙度难以达到Ra1.6μm等问题,对加工工艺和工装进行了创新。对成套工装设计从4个方面做了详尽论述(1)成套工装设计4要点;(2)球齿座钻夹具设计;(3)深度控制装置;(4)加工球齿座孔的专用刀具。实践证明,采用创新工艺加工球齿座达到图纸设计的技术要求,尺寸精度达H7以上,沉孔粗糙度达Ra0.8μm以上。工艺创新后每8h能加工8件球齿座,比原工艺的加工效率提高33%;原工艺加工1件球齿座的加工费用290元,现每件仅50元。

New technique and devices for machining hydraulic anchor seat

In view of the problems in machining the hydraulic anchor seat with the conventional method,the machining technology and corresponding devices are modified. The key points of the machining devices design are given,the clamp and depth control device are designed,and the special cutter is developed. Practice proves the new technique and devices satisfy the machining requirements of the hydraulic anchor seat with satisfactory accuracy and high efficiency.