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Abstract: In the gringding of crankshaft using tangential point
tracing grinding ,many factors, such as the cognate error between rotary
axis (c axis) and to-and-fro axis (x axis)of grinding wheel, the elastic
displacement of crankshaft along the normal of the gringing point under
the grinding force, the variation of diameters of grind wheel, the
deviation of the height between the center of grinding wheel and the
rotary center of crankshaft, the variation of moment of gringding force
to the rotary center of crankshaft along with the rotation of
crankshaft, all lead to roundness error and size error of crankshaft. By
means of digital simulation and experimental research, the magnitude and
change rules of machining error resulted by the factors mentioned above
are discussed. The error compensation model are given.
Key words: Crankshaft Tangential point tracing grinding Error
analysis Experimental research Digital simulation
CLC No: TG595.3
TH161
国家自然科学基金资助项目(59975028). Received 20020830, received in revised form
20030527
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