The tool offset of CNC lathes has three values in the shape part, X, Z, and radius. How to obtain the values of X and Z?
Tool setting, obtain the relative coordinate value so that the system can calculate the tool offset value
- Manual tool setting
When the machine tool completes zero point reset, the machine tool coordinate system is ready, and all the data (workpiece coordinate system) is based on this. The master installed the turning tool on the turret and started to cut the black parts. First set a small goal, such as turning the stick to 35mm first, and measured it with a caliper. Oh, average value! Okay, open the tool offset page in the system, enter the value in the X axis, press measure, and the X axis offset data will be available. Then the master started cutting again, using a ruler to measure the distance from the workpiece origin (set on the end face of the chuck, or directly set the end face as the workpiece coordinate origin) to the machined end face. In the previous interface, enter the value measurement, and the Z axis offset data will also be available. - Automatic tool setting
The lathe equipped with automatic tool setting instrument is more convenient. The principle is actually the same, because the actual coordinate value of the tool setting instrument sensor in each direction from the zero point of the machine tool coordinate system is a fixed value, which is actually the same as setting the workpiece coordinate system.
Steps: The tool tip approaches and forcibly presses the soft touch key on the tool setting instrument. Through a complex flexible support rod, the sensitive switch sensor is triggered. The switch will immediately notify the system to lock the operation of the feed axis (do not move!). The position ring pulse encoder on the feed axis feeds back the accurate position to the system, and the distance relationship between the tool setting instrument and the machine tool origin can be used to calculate the offset in the X and Z directions.
