Last updated: 12/03/2018

Probe Calibration (WIPS) - CHC


WIPS - Probe Operation Test

1

Run this code in MDI mode:

M59 P1133; G04 P1.0; M59 P1134;

When the control shows PROGRAM END, lightly tap the stylus [1] of the tool probe with your finger. The control makes a "beep" each time you touch the stylus. This starts the probe operation program.

Push [RESET] to stop the program.

Run this code in MDI mode:

M59 P1134;

Hold the work probe [3] near the OMI sensor [2].

Push and hold [CYCLE START].

Lightly tap the stylus [4] of the work probe. The control makes a "beep" sound. This tells you that the probe is started.

WIPS - Work Probe Stylus - Runout - Adjustment

1

Put the work probe into the spindle.

Put the indicator onto the table. Align the indicator tip to the probe stylus [1] as shown.

Jog the spindle in 0.0001" increments until the indicator [2] touches the stylus. Set the indicator to 0.

Push [EMERGENCY STOP].

Turn the spindle with your hand to measure the work probe runout. If the runout is more than 0.0001" (0.0025 mm), proceed to Step 2.

2

If the runout is more than 0.0001" (0.0025 mm), follow these steps to adjust the work probe stylus:

  • Loosen the (2) top locking set screws [1] on the work probe. These screws lock the stylus in position. Lightly tighten them again.
  • Loosen the (4) bottom set screws [2] a small amount. These screws adjust the position of the stylus.
  • Turn the spindle with your hand until you find the highest indicator reading. This tells you which direction to adjust the stylus to decrease runout.
  • Tighten the bottom screws [3] on the high side. As you tighten these screws, loosen the bottom screws on the opposite side [4] to allow the stylus to move.

     Note: Very small adjustments have a large effect on the stylus runout.

  • Adjust the screws until the runout is less than 0.0001" (0.0025 mm).
  • Tighten these screws equally:
    • the top locking screw
    • the bottom adjustment screw on the opposite side

CHC - WIPS - Tool Probe - Calibration

1

Put the calibration bar [1] into the spindle.

Use the indicator to measure the runout of the calibration bar.

If the runout is more 0.0001" (0.0025 mm), adjust or replace the calibration bar.

If you have recorded the length of the calibration bar, proceed to Step 2.

To measure the length of the calibration bar:

Put the tip of the indicator against the bottom face [2] of the calibration bar. Set the indicator to 0.

In MDI mode, jog the X Axis until the indicator is no longer under the calibration tool.

Jog the Z Axis in the negative (-) direction until the tip of the indicator touches the bottom face [3] of the spindle.

The Z-Axis value on the DIST (distance) TO GO position is the calibration bar length. Record this value.

Use a micrometer to measure the diameter of the widest part of the calibration bar. Record the measurement.

2

In MDI mode, push [PRGRM/CONVRS]. Select the SET-UP tab. Push [WRITE/ENTER].

Select the TOOL PROBE CALIBRATION tab.

Jog the Z Axis until the calibration bar [1] is 0.40" (10 mm) above the tool probe [2].

To align the calibration bar to the tool probe:

  • Jog the X Axis until the calibration bar is aligned with the tool probe.
  • Push [F1].

  • Jog the Y Axis until the calibration bar is aligned with the tool probe.

  • Push [F1].

  • Enter this information for the calibration bar:

    • the tool number [3]
    • the bar length [4]
    • the bar diameter [5]

 Note: If you do not see the probe calibration tabs or intuitive programming system, you must enable the IPS probe. Set Parameter 732, IPS PROBE, to 2.

Push [CYCLE START].

The Calibration Box shows COMPLETED.

3

Attach the ring gauge [3] to the table near the tool probe.

Move the calibration bar [1] above the edge of the ring gauge.

Put a shim, feeler gauge, or slip of paper [2] over the gauge.

Push [.0001/.1].

Jog the Z Axis until the tip of the calibration bar lightly touches the paper.

Push [PRGRM/CONVRS]. Select WORK PROBE CALIB.

Push [F1] to enter the Z-Axis position.

Enter the length of the calibration bar. Push [WRITE/ENTER].

Measure the thickness of the shim used. For example, a piece of paper at 0.003 inch.

Enter the thickness in the SHIM field [4]. Push [WRITE/ENTER].

CHC - WIPS - Work Probe - Calibration

1

Select the WORK PROBE CALIBRATION tab.

Put the work probe [1] into the spindle.

Measure the length [2] of the work probe. Enter the length of the work probe.

Enter the diameter of the ball at the end of the work probe. For the standard Renishaw probe, use 0.2362" (6 mm).

Measure the inside diameter of the ring gauge. Use an inside micrometer or a bore gauge. If the inside diameter is written on the gauge, use that number.

Enter the diameter of the ring gauge. Push [WRITE/ENTER].

Jog the axes until the work probe is approximately 0.3" (7 mm) above the center of the ring gauge [3].

Push [CYCLE START].

The calibration box shows COMPLETED.