外文翻譯---復(fù)雜光學(xué)曲面慢刀伺服超精密車削技術(shù)研究-其他專業(yè)-全文預(yù)覽
【正文】 to overe over cutting and lack cutting due to nonzero rake angel. With regard to the calculate problem of tool path outer of surface region, space curve interpolation algorithm and surface continuation methods are proposed. In order to improve the manchining accuracy, error pensation algorithm is studied base on the tool path correction. 4. The error model and simulation algorithm of Slow Tool Servo turning. Base on the discrete vector intersection, geometry simulation algorithm of slow tool servo turning is constructed. Then, major error sources and its transformations in plex surface turning are analyzed. An error model of slow tool servo turning is built base on multibody theory. Experiments are carried out to validate simulation algorithm and error model. 5. Finally, plentiful experiments are performed on a variety of plex optical surfaces including offaxis parabolic, array lenses, wave front correcting glass, spiral phase plate, continuous phase plate and so on. The successful machining results prove the validity and advantages of the proposed algorithms and the proposed process improvements. Slow knife servo turning the typical machine tool layout forms as shown in figure 1 shows, and mon single point diamond turning and a sharp sword servo turning processing layout is similar. Two straight line into a T to shaft font layout. The main shaft is installed on the X axis. X axis direction of the movement and workpiece axis of vertical direction of the axis. Cutting tools installed in the Z axis, movement direction perpendicular to the X axis and the spindle and workpiece axis parallel. The installation in the spindle and then turn together, diamond tools according to the different Angle ? and radial position relative to the surface movement x, namely tool by cylindrical coordinate system should be movement. Configuration of slowtoolservo turning lathe This in ultraprecision turning ordinary machine developed on the basis, the spindle movement speed control to the position control, use C, X, Z axis in polar coordinates or cylindrical coordinate system linkage realized in the rotary symmetrical surface processing method, because the Z axis motion drive tools can only achieve the highest dozens of Hertz, pared with a sharp sword hundreds, even thousands of Hertz sports slower so called slow knife servo technology. 復(fù)雜光學(xué)曲面慢刀伺服超精密車削技術(shù)研究 自由曲面光學(xué)元件具有許多優(yōu)異的光學(xué)性能，越來越多地應(yīng)用到現(xiàn)代光學(xué)系統(tǒng)設(shè)計中。金剛石刀具幾何參數(shù)的選擇、刀具路徑規(guī)劃及刀具半徑補(bǔ)償是確保加工精度的關(guān)鍵。 慢刀伺服車削是對車床主軸與 Z 軸均進(jìn)行
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