类椭圆形螺杆泵定子模芯成形铣刀廓形设计  

Design of Forming Milling Cutter for Stator Core of Elliptical Screw Pump

作　　者：祖海英[1] 贾庆林 宋玉杰[1] 韩道权[1] 郭翔 ZU Haiying;JIA Qinglin;SONG Yujie;HAN Daoquan;GUO Xiang(School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing Heilongjiang 163318,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318

出　　处：《机床与液压》2022年第4期86-90,共5页Machine Tool & Hydraulics

摘　　要：针对类椭圆形螺杆泵定子模芯结构复杂、加工难度高的问题,通过对类椭圆形螺杆泵定子线型形成原理的研究,确定定子模芯轮廓线,分析定子模芯轮廓线结构特点,确定定子模芯的加工需要两把不同的成形刀具。依据端截面设计成形铣刀廓形加工时存在干涉,确定了依据定子法截面截形设计成形刀具,通过坐标变换建立了定子模芯螺旋曲面特性方程,与接触条件式联立求解接触方程,获得成形刀具廓形,并根据曲率半径对刀具与工件进行干涉检查,验证刀刃廓形设计的正确性,为类椭圆形螺杆泵定子模芯成形铣刀廓形设计提供了理论基础。In view of the complex structure and high processing difficulty of the stator mold core of the elliptical screw pump,by studying the forming principle of the stator line of the elliptical screw pump,the contour line of the stator mold core was determined,the structural characteristics of the contour line of the stator mold core were analyzed,and two different forming tools were determined for the processing of the stator mold core.The forming milling cutter profile was designed according to end section,there was interfer⁃ence when machining.The method of stator section cross-sectional shape was used to design forming tool,and the stator mold core helical surface equation was built through coordinate transformation.It was combined with the contact condition to solve the contact equation,then formed milling cutter profile was obtained.The interference check between tool and workpiece was made based on cur⁃vature radius.It verifies the correctness of the blade profile.The research provides a theoretical basis for the contour design of the mill⁃ing cutter for forming the stator core of the elliptical screw pump.

关 键 词：类椭圆形螺杆泵 定子模芯 成形铣刀廓形 

分 类 号：F416.41[经济管理—产业经济]