　　(1)直線度誤差測(cè)量基準(zhǔn)可任意選擇，評(píng)價(jià)基準(zhǔn)應(yīng)符合較小條件原則。也就是說(shuō)，在測(cè)量導(dǎo)軌的精度時(shí)，被測(cè)導(dǎo)軌的實(shí)際輪廓建議包含兩條平行的理想線，并使理想線之間的距離高度較小化。兩理想線之間的距離稱為導(dǎo)軌包含線，即被測(cè)導(dǎo)軌的直線度誤差。

　　(1) The measurement datum of straightness error can be chosen arbitrarily, and the evaluation datum should conform to the principle of minimum condition. That is to say, when measuring the accuracy of the guideway, the actual outline of the guideway must contain two parallel ideal lines and minimize the distance height between the ideal lines. The distance between the two ideal lines is called the inclusive line of the guideway, which is the straightness error of the measured guideway.

　　導(dǎo)軌絲杠

　　Guide screw

　　(2)無(wú)論評(píng)價(jià)基準(zhǔn)如何轉(zhuǎn)換，發(fā)明獎(jiǎng)的計(jì)量方向不變的原則。這一原則是反映在測(cè)量方向測(cè)量讀數(shù)應(yīng)該垂直于測(cè)量基準(zhǔn),使用坐標(biāo)測(cè)量,包含兩行之間的距離不應(yīng)由于評(píng)估基準(zhǔn)轉(zhuǎn)換,導(dǎo)致小評(píng)價(jià)基準(zhǔn)之間的傾斜和改變方向。

　　(2) No matter how the evaluation benchmark is changed, the measurement direction of the invention award remains unchanged. This principle is reflected in the measurement direction reading should be perpendicular to the measurement datum. Using coordinate measurement, the distance between two rows should not lead to the tilt and direction change between small evaluation datum due to the conversion of evaluation datum.

　　導(dǎo)軌絲杠

　　Guide screw

　　(3)導(dǎo)軌后只用幾個(gè)相同音高的齒輪,其支持點(diǎn)端到端連接的幫助下一個(gè)特殊的橋梁板或其他精密角度測(cè)量?jī)x,并沿著測(cè)量方向,分別測(cè)量?jī)A角的零位選中每個(gè)齒輪相對(duì)于級(jí)別(測(cè)量基準(zhǔn)是水平線)。這可以轉(zhuǎn)換為相鄰高度之間的差值。等間距有限點(diǎn)相對(duì)高差的綜合結(jié)果反映了被測(cè)導(dǎo)軌的曲線起伏。

　　(3) Only a few gears of the same pitch are used behind the guide rail, which supports end-to-end connection of points to help the next special bridge plate or other precision angle measuring instrument, and along the measuring direction, the zero position for measuring the inclination angle is selected for each gear relative to the level (the measuring datum is a horizontal line). This can be converted to the difference between adjacent heights. The comprehensive results of relative height difference between finite points with equal spacing reflect the curve fluctuation of the guideway under test.

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