 Wysłany: Nie 12:08, 03 Kwi 2011 Temat postu: Ultra- precision aspheric grinding system of micro |
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| Ultra-precision aspheric grinding system of micro-vibration test
Of. It can be seen from the figure: in other processing conditions remain unchanged, the change in the speed of the workpiece spindle, the surface of the workpiece surface space spatial frequency and amplitude are changed. Thus, in the vibration condition, select the appropriate processing parameters, surface quality will be improved. Table 1 Experimental range of processing parameters of Tab. 1Theparameterrangeofexperimentmachining good 15511 -}·}·{· 1. +-}··'· 1. Ten 1. _. } *. '{. . . . ':. . A '1. '1. . . . , ', L capsule capsule Li Mao. . . . : #. . :. . Drug statue::: j: incubation:: _7 ::  : Salt::: i10. ~ -75-157--!. O even '253O * j::. . - Ten -, / S (each cell 0.0i06667s) 0 :。 Amplitude 365 040 766 HI:. ~ 5009E-5 meters. '''. . _. ● glycosides. . {. ;. _'ri fortunate group. . ·:·--,',·。 - · ≮ house l. . . . . . . . :_:_. i. · ■ · _5. . . 'A'. l0. 4. -15--. _. 2O'-2l_ · 30 · · 35.40 · · -. :. . :. , / S: grid O. O】 06667S. ●. . (A) = 30Hz, = 10Hz, = 13.33Hz surface profile (b) = 30Hz,GHD glätteisen, = 10Hz, = 15Hz the surface profile of Figure 7 different spindle speed, workpiece surface contour changes in Fig. 7Thevarietyofworkpiecesurfacefigureunderdifferentspindlerotatespeed4 conclusion in the ultra-precision grinding, the wheel of the amendment and replacement of the imbalance caused by vibration and swing and the workpiece spindle produced by vibrations in the workpiece surface vibration ripples and form error, which worsened the processing quality, increased wheel wear . Vibration conditions in the processing of the surface profile, the surface spatial frequency and amplitude of the surface space wheel vibration frequency and the ratio of the workpiece spindle rotation frequency, and therefore change the frequency or vibration frequency of the workpiece spindle rotation will cause the surface profile change. The design of ultra-precision grinding of micro vibration test system can simulate the process of grinding wheel radial and transverse different frequency, small amplitude vibration and swing for the study of different processing parameters on the grinding wheel and workpiece vibration characteristics Quality of surface and provide experimental basis. By optimizing the processing parameters, the ultra-precision grinding energy in the vibration as small as possible under the conditions, and indirectly to ensure product quality. |
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