Research on Precision Measurement and Fitting Method for Sliding-Shoes Inferior Concave Spherical Surface
Due to the presence of nonlinear springback deformation, when the aviation piston hydraulic pump which is usually called sliding-shoe is formed by cold extrusion method, the surface of the sliding-shoes ball-socket becomes non-analytic curved surface.And this brings many difficulties to the measurement.In this paper, the precision measurement and fitting method to the inferior concave spherical surface of the sliding-shoe is discussed.And according to the deformation characteristics of the sliding-shoe, a meridian measurement method is established for the measurement.To a large number of discrete data, we fit it by least squares method and calculate it by VC++ Language program.Then we get the ball-sockets center and radius.And fitting the sliding-shoes ball-socket to find out the contour error.It provides a reliable basis for the inspection of sliding-shoe.
Inferior Concave Spherical Surface Meridian Measurement Method Least Squares Method Surface Fitting
Weigang Zheng Chao Tang Ming Dai Haibo Huang Xiaoxiao Ma
College of Mechanical Engineering,Guizhou University,China
国际会议
上海
英文
1817-1820
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）