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木工雕刻機(jī)設(shè)置工件原點(diǎn)是什么？

來源：http://editscore.net 時(shí)間：2021-07-23

木工雕刻機(jī)都有的一個(gè)機(jī)械原點(diǎn)，工件原點(diǎn)和機(jī)械原點(diǎn)是兩個(gè)不同的概念。工件原點(diǎn)就是工件坐標(biāo)的原點(diǎn)，是為工件尺寸編程確定的原點(diǎn)，一般是工件加工的起始點(diǎn)。工件原點(diǎn)可由編程者選擇，它與機(jī)械原點(diǎn)的關(guān)系由"設(shè)置當(dāng)前點(diǎn)工件原點(diǎn)"確定。

Woodworking engraving machines have a unique mechanical origin. Workpiece origin and mechanical origin are two different concepts. Workpiece origin is the origin of workpiece coordinates. It is the origin programmed for workpiece size. It is generally the starting point of workpiece processing. The origin of the workpiece can be selected by the programmer, and its relationship with the mechanical origin is determined by "setting the origin of the workpiece at the current point".

當(dāng)我們確定好工件原點(diǎn)以后，無論木工雕刻機(jī)運(yùn)行到工作臺(tái)的任何一個(gè)位置只要選擇操作菜單下面的"回工件原點(diǎn)…"選項(xiàng)，刀尖從當(dāng)前位置以X、Y、Z的順序自動(dòng)回到工件原點(diǎn)。為了在回工件原點(diǎn)過程中，刀尖能地通過經(jīng)過的空間，而不會(huì)因?yàn)榕龅焦ぜA具等障礙發(fā)生事故

After we determine the workpiece origin, no matter the woodworking engraving machine runs to any position of the workbench, just select the "return to workpiece origin..." option under the operation menu, and the tool tip will automatically return to the workpiece origin in the order of X, y and z from the current position. In order to ensure that the tool tip can safely pass through the passing space in the process of returning to the workpiece origin, without accidents due to obstacles such as workpiece and fixture

所以，回零路徑進(jìn)行如下優(yōu)化：如果終點(diǎn)Z方向坐標(biāo)大于起點(diǎn)Z方向坐標(biāo)，則Z軸先單獨(dú)進(jìn)給到Z軸終點(diǎn)位置，然后，X，Y軸聯(lián)動(dòng)，到達(dá)目的點(diǎn);如果終點(diǎn)Z方向坐標(biāo)小于起點(diǎn)Z方向坐標(biāo)，則X，Y軸先聯(lián)動(dòng)到達(dá)目的點(diǎn)X，Y坐標(biāo)，然后，z軸單獨(dú)進(jìn)給到z軸終點(diǎn)坐標(biāo)。

Therefore, the zero return path is optimized as follows: if the z-direction coordinate of the end point is greater than the z-direction coordinate of the start point, the z-axis is fed to the z-axis end point separately, and then the X and Y axes are linked to reach the destination point; If the Z coordinate of the end point is less than the Z coordinate of the start point, the X and Y axes reach the X and Y coordinates of the destination point first, and then the Z axis feeds to the Z axis end coordinate separately.

因?yàn)榻K點(diǎn)的Z坐標(biāo)往往在工件的加工表面，為了避免刀尖回到工件零點(diǎn)后碰傷工件表面或刀尖，實(shí)際上，Z軸不是回到零，而在零點(diǎn)上方的一個(gè)偏置值。該值由"木工雕刻機(jī)系統(tǒng)參數(shù)窗口"的加工參數(shù)中的"退刀點(diǎn)"設(shè)定。一般該數(shù)值可以設(shè)置為10毫米。

Because the z-coordinate of the end point is always on the machining surface of the workpiece, in order to avoid the tool tip hitting the workpiece surface or tool tip after returning to the zero point of the workpiece, in fact, the z-axis is not back to zero, but an offset value above the zero point. This value is set by "tool withdrawal point" in the processing parameters of "woodworking engraving machine system parameter window". Generally, this value can be set to 10mm.