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定子拉刀是加工摆线液压马达和液压转向器定子件的专用拉削刀具。由于定子件的尺寸精度、形状位置精度和光洁度要求都很高,所以定子拉刀是一种加工难度较高的复杂刀具。目前,国外都采用拉削工艺,这样加工的定子精度高,光洁度好,且加工效率高,成本低。而我们国内由于定子拉刀的加工还处于试制和极少量生产阶段,所以大部分液压件厂还没有摆脱精镗孔后镶柱的落后工艺。去年,我厂承接了北京液压件四厂提出的试制任务,设计并
Stator broach is a special broaching tool for machining cycloidal hydraulic motors and hydraulic steering stator parts. Due to the dimensional accuracy of stator parts, shape position accuracy and finish requirements are high, so the stator broach is a complex tool with high processing difficulty. At present, abroad are used broaching process, this stator high precision, good finish, and high processing efficiency, low cost. And our domestic stator broach processing is still in trial production and very small quantities of production stage, so most of the hydraulic parts factory has not got rid of fine after boring column lagging technology. Last year, our factory undertook the prototype task proposed by the fourth hydraulic plant in Beijing and designed and manufactured