Drilling cycle with shift

INCT_DrillingCycleWithShiftFormer - SprutCAM X interface that implements the functionality to simplify the formation of movements in the drilling cycles with a shift. When called with the dctWithShift parameter, the INCT_CLData.CreateDrillingCycleFormer, INCT_GeomCLData.CreateDrillingCycleFormer function returns as a result an object that implements two interfaces: INCT_DrillingCycleFormer, INCT_DrillingCycleWithShiftFormer.

Through the INCT_DrillingCycleFormer interface, basic parameters are set for the shift drilling cycle. A description of the use is given in this article of the Drilling cycle.

INCT_DrillingCycleWithShiftFormer interface adds to the shaper implementation the ability to control the path construction parameters with a shift.

Purpose:

Displacements in different drilling cycles with a shift, for different racks generally repeat the same trajectory:

1. Positioning the tool over the center of the hole/next hole in the accelerated feed.

2. Move the tool to the level of the accelerated movement at the accelerated feed.

3. Move the tool to the bottom of the hole in the work feed.

4. Returns to the level of accelerated movement at an accelerated feed.

5. Return to retract/return level in expedited feed.

6. If the number of repetitions is not over, return to step 1.

In one or several sections of such cycles, the tool movement path is displaced along one or several axes. Examples of such cycles are Fanuc: G76, G87; Sinumerik: CYCLE86; Heidenhain: CYCL DEF 202, etc.

Former use:

We recommend to create a new drilling cycle former for each new cycle in the NC-code frame, except for cases of repeating the cycle operation in a new frame (analogue of the CYCL CALL for Heidenhain). Thus, the interface of the old former must be freed when creating a new one or shutting down the interpreter.

Using the INCT_DrillingCycleFormer interface allows you to set the tool path according to the specified parameters: initial position, levels of accelerated movement, bottom of the hole, number of repetitions, etc. And also add to the tool path any formed section features necessary for a specific cycle: dwell, oriented stop, threading, etc., change the type or value of the feed, or skip the tool path prepared by the former.

Using the INCT_DrillingCycleWithShiftFormer interface allows you to set the shift to the coordinates of the tool movement points at any of the stages of the cycle, except the first one. At each of the specified stages, the tool is moved from the current point to a new point as follows:

• moving from the current point to the current shift point ;

• moving from the current shift point to a new shift point;

• move from new shift point to a new point.

To form commands for moving a tool along a cycle path, the following steps must be performed:

1. Get the former interfaces (INCT_CLData.CreateDrillingCycleFormer, INCT_GeomCLData.CreateDrillingCycleFormer with the parameter dctWithShift).

2. Set the indexes of the axes X, Y, Z on which the movements will be made (Set_AxisIndexes).

3. Set the current plane (Set_Plane).

4. Set the hole center point value (Set_HoleCenter).

5. Set the hole center point mode (Set_HoleCenterMode).

6. Set the level of accelerated movement (Set_RapidLevel).

7. Set the bottom hole level (Set_BottomLevel).

8. Set the top level (Set_TopLevel).

9. Set the feedrate (Set_Feedrate), feedrate units (Set_MPM).

10. Set the number of repetitions of the cycle (Set_Count).

11. If the loop trajectory needs to be modified, set the loop event handler (Set_Events).

12. Set the shift type of tool moving points (SetShiftByOneAxis or SetShiftBySomeAxis).

13. Set the areas of the tool path on which the shift will be used (Set_ShiftPathSet).

14. Form teams of tool path along the cycle path (MakeWorkpath).

Description of INCT_DrillingCycleWithShiftFormer interface methods: