There are many adjustments in the CNC machining process. Due to the different machining parts, we need to make some adjustments before the operation. Then we will look at the CNC machining to adjust the work piece coordinate system. Today CNC Lathe Supplier would like to share with you the following points.
When adjusting the work piece coordinate system, the operator should set the reference point outside the physical (geometric) length of all tools, at least at the tool point of the longest tool.
For the work piece coordinate system on the work piece mounting diagram, the operator obtains the machine coordinate system offset on the machine. That is, the operator sets a reference point on the machine tool and finds the size between the reference point and the zero point of the work piece coordinate system set by the programmer, and sets this size as the work piece coordinate system offset.
On the lathe, the reference point can be set at the center of rotation of the tool holder, on the tip of the reference tool or at another location. If no additional motion is added, the zero commanded by the programmer moves the reference point of the tool holder (machine) to the zero position of the offset. At this time, if the reference point is set at the center of rotation of the tool holder, the tool holder must collide with the work piece. In order to ensure that there is no collision, the reference point on the machine tool should be set not only outside the tool holder, but also outside the tool. This way, even if the tool is mounted on the tool holder, the reference point will not collide with the work piece.
On the milling machine, the reference points of the X and Y axes are on the spindle axis. However, the reference point of the Z axis can be set at the spindle end or at a point other than the spindle end. If at the spindle end, when the command is zero, the spindle end will reach the zero position specified by the coordinate system. At this point, the end face key of the spindle end will collide with the work piece: if the spindle is loaded with a tool, it must collide with the work piece. To ensure non-collision, the reference point on the Z axis should be set outside of all tool lengths. The reference point does not hit the work piece even if no other motion is attached.
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