CNC processing plant

How to adjust the workpiece coordinate system during CNC machining in CNC machining plants? What should be noted during the process!
During the CNC machining process, there are many adjustments that need to be made. Due to the different machining parts, some adjustments need to be made before operation. So, let's take a look at how the CNC machining factory adjusts the workpiece coordinate system?
When adjusting the workpiece coordinate system, the operator should set the reference point outside the physical (geometric) length of all tools, and at least at the tool position of the longest tool.
For the workpiece coordinate system on the workpiece installation diagram, the operator obtains it by setting the machine coordinate system offset on the machine tool. That is to say, the operator sets a reference point on the machine tool and finds the dimension between this reference point and the zero point of the workpiece coordinate system set by the programmer, and sets this dimension as the workpiece coordinate system offset.
On a lathe, the reference point can be set at the center of the tool holder rotation, the reference tool tip, or other positions. If no additional motion is attached, the zero of the programmer's instruction is the zero position where the reference point of the tool holder (machine tool) moves to the offset. At this point, if the reference point is set at the center of rotation of the tool holder, the tool holder must collide with the workpiece. To ensure no collision, the reference points on the machine tool should not only be set outside the tool holder, but also outside all cutting tools. In this way, even if there is a tool installed on the tool holder, the reference point will not collide with the workpiece.
On the milling machine, the reference points of the X and Y axes are on the centerline of the spindle. However, the reference point of the Z-axis can be set at the spindle end or at a point outside the spindle end. If at the spindle end, when the command is zero, the spindle end will reach the zero position specified in the coordinate system. At this point, the end face key of the spindle will collide with the workpiece: if there are tools installed on the spindle again, it will inevitably collide with the workpiece. To ensure no collision, the reference point on the Z-axis should be set outside the length of all tools. Even without additional motion, the reference point will not collide with the workpiece.
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