Cycle 1402 SPHERE PROBING

ISO programming

G1402

Application

Touch probe cycle 1402 determines the center point of a sphere. You can apply the result to the active row of the preset table.

Cycle sequence

1402
  1. The control positions the touch probe at FMAX_PROBE rapid traverse (from the touch probe table) and with positioning logic to the programming touch point 1. During pre-positioning, the control takes the set-up clearance Q320 into account.
  2. Positioning logic

  3. The control then positions the touch probe to the entered measurement height Q1102 and performs the first probing procedure at the probing feed rate F from the touch probe table.
  4. If you program CLEAR. HEIGHT MODE Q1125, then the control positions the touch probe at FMAX_PROBE back to the clearance height Q260.
  5. The control positions the touch probe to the next touch point.
  6. The control moves the touch probe to the entered measuring height Q1102 and measures the next touch point.
  7. Depending on the definition of Q423 “Number of probe measurements”, steps 3 to 5 repeat themselves.
  8. The control moves the touch probe in the tool axis by the set-up clearance to a position above the sphere.
  9. The touch probe moves to the center of the sphere and probes another touch point.
  10. The touch probe returns to the clearance height Q260.
  11. The control saves the measured positions in the following Q parameters. If Q1120 TRANSER POSITION is defined with the value 1, then the control writes the measured position to the active row of the preset table.
  12. Fundamentals of touch probe cycles 14xx for setting presets

Q parameter
number

Meaning

Q950 to Q952

Measured circle center in the main axis, secondary axis, and tool axis

Q966

Measured diameter

Q980 to Q982

Measured deviation of the circle center

Q996

Measured deviation of the diameter

Q183

  • Workpiece status
  • –1 = Not defined
  • 0 = Good
  • 1 = Rework
  • 2 = Scrap

Notes

 
Notice
Danger of collision!
When touch probe cycles 444 and 14xx are executed, the following coordinate transformation must not be active: Cycle 8 MIRRORING, Cycle 11 SCALING FACTOR, Cycle 26 AXIS-SPECIFIC SCALING and TRANS MIRROR. There is a risk of collision.
  1. Reset any coordinate transformations before the cycle call.
  • This cycle can only be executed in the FUNCTION MODE MILL machining mode.
  • If you have programmed Cycle 1493 EXTRUSION PROBING before, the control will ignore it during the execution of Cycle 1402 SPHERE PROBING.

Cycle parameters

Help graphic

Parameter

cyc1402_1

Q1100 1st noml. position of ref. axis?

Absolute nominal position of the center in the main axis of the working plane.

Input: –99999.9999...+99999.9999 or enter ?, +, or @:

Q1101 1st noml. position of minor axis?

Absolute nominal position of the center in the secondary axis of the working plane

Input: –99999.9999...+9999.9999 Optional input (see Q1100)

Q1102 1st nominal position tool axis?

Absolute nominal position of the first touch point in the tool axis

Input: –99999.9999...+9999.9999 or optional input (see Q1100)

Q1116 Diameter of 1st position?

Diameter of the sphere

Input: 0...9999.9999 or optional input (see Q1100)

Q423 Number of probes?

Number of touch points on the diameter

Input: 3, 4, 5, 6, 7, 8

cyc1402_2

Q325 Starting angle?

Angle between the main axis of the working plane and the first touch point. This value has an absolute effect.

Input: –360.000...+360.000

Q1119 Arc angular length?

Angular range in which the touch points are distributed.

Input: –359.999...+360.000

Q320 Set-up clearance?

Additional distance between touch point and ball tip. Q320 is active in addition to the SET_UP column in the touch probe table. This value has an incremental effect.

Input: 0...99999.9999 or PREDEF

Q260 Clearance height?

Coordinate in the tool axis at which no collision between touch probe and workpiece (fixtures) can occur. This value has an absolute effect.

Input: –99999.9999...+99999.9999 or PREDEF

Q1125 Traverse to clearance height?

Positioning behavior between the touch points

–1: Do not move to the clearance height.

0, 1: Move to the clearance height before and after the cycle. Pre-positioning occurs at FMAX_PROBE.

2: Move to the clearance height before and after each touch point. Pre-positioning occurs at FMAX_PROBE.

Input: –1, 0, +1, +2

Q309 Reaction to tolerance error?

Reaction when tolerance is exceeded:

0: Do not interrupt program run when tolerance is exceeded. The control does not open a window with the results.

1: Interrupt program run when tolerance is exceeded. The control opens a window with the results.

2: The control does not open a window if rework is necessary. The control opens a window with results and interrupts the program if the actual position is at scrap level.

Input: 0, 1, 2

Q1120 Transfer position?

Define which touch point will be used to correct the active preset:

0: No correction

1: Correction of the active preset based on the center of the sphere. The control corrects the active present by the amount of the deviation of the nominal and actual position of the center.

Input: 0, 1

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.

 
Tip

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.

Example

11 TCH PROBE 1402 SPHERE PROBING ~

Q1100=+25

;1ST POINT REF AXIS ~

Q1101=+25

;1ST POINT MINOR AXIS ~

Q1102=-5

;1ST POINT TOOL AXIS ~

QS1116=+10

;DIAMETER 1 ~

Q423=+3

;NO. OF PROBE POINTS ~

Q325=+0

;STARTING ANGLE ~

Q1119=+360

;ANGULAR LENGTH ~

Q320=+0

;SET-UP CLEARANCE ~

Q260=+50

;CLEARANCE HEIGHT ~

Q1125=+1

;CLEAR. HEIGHT MODE ~

Q309=+0

;ERROR REACTION ~

Q1120=+0

;TRANSER POSITION