Set workpiece zero common methods when cnc turning

 

One, directly with the tool to cut the workpiece

1, using a round turning tool to test a first round, remember the current X coordinate, measuring the diameter of the outer circle, using the X coordinate minus the diameter of the outer circle, the value of the geometric input into the offset interface X value.
2, with a round turning tool first test a cylindrical end face, remember the current Z coordinate, enter the offset interface geometry Z value.
 

Second, set the workpiece zero with G50

1. Use a turning tool to test the outer circle of the part firstly. After measuring the diameter of the outer circle, retract the knife in the positive direction of the Z-axis and cut the end face to the center (the X-axis coordinate minus the diameter value).
2. Select MDI mode, enter G50 X0 Z0, start the START key, and set the current point to zero.
3. Select MDI mode and input G0 X150 Z150 to move the tool away from the workpiece.
4. At the beginning of the program: G50 X150 Z150 ........
5. Note: With G50 X150 Z150, your starting point and end point must be the same as X150 Z150, so as to ensure that the repetitive processing does not confuse the knife.
6. If you use the second reference point G30, you can ensure that the repetitive processing does not turbulence, at the beginning of the program G30 U0 W0 G50 X150 Z150
7. In the FANUC system, the position of the second reference point is set in the parameter. In the Yhcnc software, press the right mouse button to display the dialog box and press the left mouse button to confirm.
 

Third, set the workpiece zero with the workpiece

1. In the Offset of FANUC0-TD system, there is a workpiece movement interface, which can input the zero offset value.
2. Use a round turning tool to try to cut the end surface of the workpiece first. At this time, the Z coordinate position is: Z200, and it is directly input into the offset value.
3. Select “Ref” to return to the reference point and press the X and Z axes to return to the reference point. At this time, the workpiece zero coordinate system is established.
4. Note: This zero point is maintained. It is cleared only when the offset Z0 is newly set.
 

Fourth, set the workpiece zero with G54-G59

1. Use a round turning tool to test the outer circle firstly. After measuring the outer diameter of the outer circle, retract the knife along the positive direction of the Z axis and cut the end face to the center.
2. The current X and Z axis coordinates are directly input into G54----G59, and the program directly calls such as: G54X50Z50.
3. Note: G54-----G59 workpiece coordinate system can be cleared by G53 command.