Rev b

Major VersionM

by Kristen Sowatsky

Introduction

Qualifications:

  • Level 1 Safety Training * CNC Operation Training

PPE:

Please make sure you have the following PPE:

  • Gloves
  • Helmet
  • Safety Glasses

summary]How to Calibrate a CNC machine.[/summary]

Image 1/1: '''Reminder:''' Make sure to remove the spindle before starting.
  • Verify that the probe system and connections to the machine are functioning correctly.

    • Reminder: Make sure to remove the spindle before starting.

  • Before beginning this procedure check to see if the fuse is dead. If the fuse is dead go here.

    • Note: View the Ring Guage item page for more detailed part information.

  • Remove the spindle.

  • Refer to the wiring diagram prior to starting step 2.

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Image 1/2: Hold the Work Probe within range of the '''OMI'''. Press and Hold '''CYCLE START'''. Image 2/2: Gently depress the stylus, the control pendant will beep indicating the probe is activated.
  • In MDI, enter: M59 P1134.

  • Hold the Work Probe within range of the OMI. Press and Hold CYCLE START.

  • Gently depress the stylus, the control pendant will beep indicating the probe is activated.

  • View MSDS here

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Image 1/2: Please be aware of Quality Alert associated with this step. [https://gunnerautomotive.dozuki.com/Wiki/Quality_Alert_-_X1058_Crack_Issue_2.15.2015|View Quality Alert|new_window=true]. Image 2/2: With the doors open, press and hold '''CYCLE START'''.
  • In MDI Mode, enter: M59 P1133; G04 P1.0: M59 P1134.

  • Please be aware of Quality Alert associated with this step. View Quality Alert.

  • With the doors open, press and hold CYCLE START.

  • After the program has run, gently tap the Tool Probe with your finger.

  • The control pendant will beep each time the Tool Probe is depressed. The Tool Probe is activated.

  • Press RESET to end the activation.

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Image 1/1: With the Work Probe runout set within specification and both Probes calibrated, the machine is ready to measure tools and work pieces using the '''WIPS''' probing routines.
  • This completes the calibration routine and the status box will display COMPLETED.

  • With the Work Probe runout set within specification and both Probes calibrated, the machine is ready to measure tools and work pieces using the WIPS probing routines.

  • Please complete [invalid guide link]

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Image 1/2: Magnetic Base to mount the Indicator Image 2/2: "Calibration Bar", generally consisting of a 1/2" or 12 mm gauge pin clamped in a collet style toolholder.
  • Test Indicator accurate to 0.0005" or 0.013 mm

    • Magnetic Base to mount the Indicator

    • "Calibration Bar", generally consisting of a 1/2" or 12 mm gauge pin clamped in a collet style toolholder.

    • "Ring Gauge" typcally with a 2.000" or 50.000 mm bore.

  • Note: an accurately bored hole in a part or fixture can also be used in place of the Ring Gauge.

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Image 1/3: Place the magnetic base on the table and align the indicator tip to the probe's stylus. Image 2/3: Jog the axes in 0.001 inch increments until the indicator touches the stylus. Image 3/3: With the indicator tip set against the stylus press '''E-STOP''', so the probe isn’t accidentally ejected during adjustment.
  • Insert the Work Probe into the spindle.

  • Place the magnetic base on the table and align the indicator tip to the probe's stylus.

  • Jog the axes in 0.001 inch increments until the indicator touches the stylus.

  • With the indicator tip set against the stylus press E-STOP, so the probe isn’t accidentally ejected during adjustment.

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  • Rotate the probe by hand to check runout.

  • If runout exceeds 0.0005" or 0.013 mm, adjustment is required.

  • Enter the runout reading.

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Image 1/3: '''WARNING''': The four lower sets of screws adjust the position of the stylus mount. Very small adjustments have a large effect on the stylus runout. Image 2/3: Decide which dirsdfgsdfgn the stylus needs to be adjusted to reduce runout. Image 3/3: Loosen and then slightly tighten the two opposing screws that are NOT inline with this direction to add some friction.
  • On the probe body, loosen the two upper LOCKING set screws slightly, and then lightly tighten them.

  • WARNING: The four lower sets of screws adjust the position of the stylus mount. Very small adjustments have a large effect on the stylus runout.

  • Decide which dirsdfgsdfgn the stylus needs to be adjusted to reduce runout.

    • Loosen and then slightly tighten the two opposing screws that are NOT inline with this direction to add some friction.

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Image 1/1: These will be used to push the stylus mount into alignment.
  • Gently loosen the second set of two opposite screws.

    • These will be used to push the stylus mount into alignment.

  • Tighten the screw ON THE SAME SIDE as the highest indicator reading.

    • This moves the stylus tip away from the indicator.

  • As you tighten the “pushing” screw you will need to loosen the opposite adjustment screw and locking screw slightly to allow movement.

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Image 1/2: When runout is below 0.0005" or 0.013 mm, carefully tighten each upper locking screw while at the same time tightening the opposite lower adjustment screw. Image 2/2: Then do the other set.
  • Continue to adjust inward with each set of screws to reduce the runout as close to zero as possible.

  • When runout is below 0.0005" or 0.013 mm, carefully tighten each upper locking screw while at the same time tightening the opposite lower adjustment screw.

    • Then do the other set.

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Image 1/2: Now that the work probe stylus is centered, calibration of both probes can begin. Image 2/2: Now that the work probe stylus is centered, calibration of both probes can begin.
  • With the locking screws tight, check the runout at the stylus one more time.

  • Now that the work probe stylus is centered, calibration of both probes can begin.

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Image 1/2: Press '''MDI/DNC'''. Image 2/2: Press '''PRGRM/CONVRS'''.
  • The WIPS Calibration Menus are explained in the Haas VMC Operator's Manual.

  • Press MDI/DNC.

  • Press PRGRM/CONVRS.

  • Select the SETUP tab.

  • Select the TOOL PROBE CALIBRATION tab.

  • Insert the Calibration Bar into the spindle.

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Image 1/1: If runout exceeds 0.0005 inches or 0.013 mm the bar will need to be adjusted or replaced.
  • With the Indicator mounted on the table, measure the runout of the Calibration Bar gauge pin.

  • If runout exceeds 0.0005 inches or 0.013 mm the bar will need to be adjusted or replaced.

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Image 1/2: This is '''NOT''' a Gauge Line measurement. Image 2/2: Use this method consistently to measure the Calibration Bar and the results will always be repeatable for quality work.
  • Using the Z-axis and an indicator, check the distance from the face of the spindle to the tip of the gauge pin.

  • This is NOT a Gauge Line measurement.

  • Use this method consistently to measure the Calibration Bar and the results will always be repeatable for quality work.

    • GAUGE PIN FACE

    • TOOL HOLDER GAUGE LINE

    • SPINDLE FACE

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Image 1/2: Write this value on a piece of paper. Image 2/2: Write this value on a piece of paper.
  • Note the on-screen Z-axis value, this is your Calibration Bar length.

  • Write this value on a piece of paper.

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Image 1/2: Follow the on-screen prompts. Jogging Z-axis, bring the calibration bar just above the tool probe, and press '''F1'''. Image 2/2: Then Jog the X axis to center the bar over the tool probe and press '''F1''' again. Do the same for the Y axis.
  • Use a micrometer to find the diameter of the gauge pin used in the Calibration Bar and write this number down.

  • Follow the on-screen prompts. Jogging Z-axis, bring the calibration bar just above the tool probe, and press F1.

  • Then Jog the X axis to center the bar over the tool probe and press F1 again. Do the same for the Y axis.

  • Enter the tool number you will use for the Calibration Bar.

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Image 1/1: Next, enter the micrometer reading previously noted in Step 16.
  • Now enter the Calibration Bar length. Use the value you wrote down in Step 15.

  • Next, enter the micrometer reading previously noted in Step 16.

  • WARNING: THIS MUST BE A DIAMETER AND NOT A RADIUS MEASUREMENT.

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  • Press CYCLE START to execute the automatic calibration routine.

  • The Calibration Bar will touch off the top of the Tool Probe, and in four places on the side of the probe.

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Image 1/2: Press '''CANCEL''' and select the '''Work Probe Calibration''' tab. Image 2/2: Clamp the Ring Gauge to the table within reach of the probe.
  • When the program is finished, the CALIBRATION status box will display COMPLETED. Calibration of the Work Probe can begin.

  • Press CANCEL and select the Work Probe Calibration tab.

  • Clamp the Ring Gauge to the table within reach of the probe.

  • Enter the Work Offset to be used for Work Probe calibration.

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Image 1/2: Place a shim, feeler gauge, or slip of paper over the gauge. Image 2/2: Press the .0001/.1 button. Jog the Z-axis so the tip of the bar slightly contacts the paper. Press '''F1'''.
  • With the calibration bar in the spindle, position the pin above the edge of the ring gauge.

  • Place a shim, feeler gauge, or slip of paper over the gauge.

  • Press the .0001/.1 button. Jog the Z-axis so the tip of the bar slightly contacts the paper. Press F1.

  • Enter the length of the calibration bar from Step 15. Press the WRITE/ENTER button.

  • Enter the thickness of the shim used, in this case a piece of paper at 0.003 inch. Press WRITE/ENTER again.

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Image 1/2: Measure the Work Probe length with a machinist’s scale (accuracy of 1/16 inch or 1.5 mm). Image 2/2: Note that the standard Renishaw probe uses a 0.2362 inch or 6 mm diameter ball.
  • Remove the calibration bar from the spindle and insert the Work Probe in its place.

  • Measure the Work Probe length with a machinist’s scale (accuracy of 1/16 inch or 1.5 mm).

  • Note that the standard Renishaw probe uses a 0.2362 inch or 6 mm diameter ball.

  • Now enter the length of the Work Probe as well as the diameter of the indicating ball.

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Image 1/2: If the Inside Diameter is etched on the Gauge, that number can be used. Image 2/2: Next enter the diameter of the Ring Gauge and press '''WRITE/ENTER'''.
  • Measure the ring gauge with an inside micrometer or bore gauge.

  • If the Inside Diameter is etched on the Gauge, that number can be used.

  • Next enter the diameter of the Ring Gauge and press WRITE/ENTER.

  • Jog the axes until the stylus tip is in the center of the ring, and about 0.3" or 7 mm above the surface.

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Image 1/2: The Work Probe will touch the inside diameter of the ring gauge five separate times in X and Y. Image 2/2: Then, it touches off the top surface of the ring gauge.
  • Press CYCLE START to begin the automatic calibration process.

  • The Work Probe will touch the inside diameter of the ring gauge five separate times in X and Y.

  • Then, it touches off the top surface of the ring gauge.

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  • Insert wisdom here.

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Conclusion

This guide was created using Dozuki electronic work instruction software.

Dozuki System

Member since: 09/24/2009

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