When withdrawal from parts of tools is considered positive direction 4.2.2. The axes for milling on the milling machine spindle is working support the rotating tool. a) Z-axis machine tool axis, which coincides with the axis of the working spindle or parallel to it, is defined as the axis Z. The positive direction of Z axis runs from the details of the instrument. may find it difficult to be quoted properly. So, if the tool The X-axis X-axis is parallel to the plane of the clamping parts for horizontal milling machine the following applies: If you look at the detail of the spindle, the X-axis positive direction is right.
Y set of coordinates after the determination of the axes Z and X. 4.3. The basic point 4.3.1.Nulevaya point machine zero point of the machine M ('zero machine') is always located at the beginning of the coordinate system of the machine. When setting up the CNC machine, this the zero point of access to all feeder machine, thereby coordinate all indications are set to 0. At this point lathe located in the chuck, usually on a plane all the way flange spindle.
4.3.2.Tochka frame of the machine, however, R may be impossible to start the motion from a zero point of the machine, as this prevents the clamped component or fixture. It is therefore necessary to establish second base point on axes, the so-called benchmark machine R (auxiliary machine zero point). This reference point is needed only for CNC measuring the relative path, since the actual values are lost when power failure or deficiencies.