Transformation types
Application
COORD ROT and TABLE ROT influence the orientation of the working plane coordinate system WPL-CS through the axis position of a free rotary axis.
Any rotary axis becomes a free rotary axis with the following configuration:
- The rotary axis has no effect on the tool angle of inclination because the rotary axis and the tool axis are parallel in the tilting situation
- The rotary axis is the first rotary axis in the kinematic chain starting from the workpiece
The effect of the COORD ROT and TABLE ROT transformation types therefore depends on the programmed spatial angles and the machine kinematics.
The transformation types work for all tilting functions except PLANE AXIAL.
Description of function
The control offers two options.
Option | Meaning |
---|---|
COORD ROT |
|
TABLE ROT | For example, TABLE ROT works with PLANE SPATIAL as follows: TABLE ROT with:
TABLE ROT with:
|
If no free rotary axis arises in a tilting situation, then the COORD ROT and TABLE ROT transformation types have no effect.
The entry of COORD ROT or TABLE ROT is optional.
If no transformation type was selected, then the control uses the COORD ROT transformation type for the PLANE functions
Example
The following example shows the effect of the TABLE ROT transformation type in conjunction with a free rotary axis.
NC programs contained in this User's Manual are suggestions for solutions. The NC programs or individual NC blocks must be adapted before being used on a machine.
Change the following contents as needed:
- Tools
- Cutting parameters
- Feed rates
- Clearance height or safe position
- Machine-specific positions (e.g., with M91)
- Paths of program calls
Some NC programs depend on the machine kinematics. Adapt these NC programs to your machine kinematics before the first test run.
In addition, test the NC programs using the simulation before the actual program run.
With a program test you determine whether the NC program can be used with the available software options, the active machine kinematics and the current machine configuration.
11 L B+45 R0 FMAX | ; Pre-position the rotary axis |
12 PLANE SPATIAL SPA-90 SPB+20 SPC+0 TURN F5000 TABLE ROT | ; Tilt the working plane |
Origin | A = 0, B = 45 | A = –90, B = 45 |
- The control positions the B axis to the axis angle B+45
- With the programmed tilting situation with SPA–90, the B axis becomes the free rotary axis
- The control does not position the free rotary axis. The position of the B axis prior to the tilting of the working plane is maintained
- Since the workpiece was not also positioned, the control orients the working plane coordinate system in accordance with the programmed spatial angle SPB+20
Notes
- For the positioning behavior with the COORD ROT and TABLE ROT transformation types, it makes no difference whether the free rotary axis is a table axis or a head axis.
- The resulting axis position of the free rotary axis depends on an active basic rotation, among other factors.
- The orientation of the working plane coordinate system is also dependent on a programmed rotation (e.g., with Cycle 10 ROTATION).