Section 05: Automatic Tool Changers - FadalCNC.com

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FadalMaintenance ManualAdjustmentsZ Axis Cold StartAdjustmentThere are four motions that influence the automatic tool changer alignment.These motions are:• Z-axis up & down.• Spindle orientation.• Turret in & out.• Turret rotation.1) Remove the ATC upper cover.Figure 5-1 Remove ATC Upper Cover2) Position the Z-axis head to the machine zero position (CS).3) Orientate Spindle (M19).4) Manually move the ATC slide in toward the spindleNote: The EMC machine uses an air cylinder for the turret movement. Tomanually move the ATC as suggested in step (4) several steps must betaken:• Disconnect the air to the machine.• Manually move the ATC slide towards the spindle.• Re-connect the air to the machine for added pressure against the spindle.120 Section 05: Automatic Tool Changers March 2003
FadalMaintenance ManualFigure 5-2 Move ATC Slide Toward Spindle5) Measure the distance from the ATC carriage to the nose of the spindle witha thickness gauge. Adjust the Z axis until the nose of the spindle is .050”[1.27mm] above the turret carriage for CAT taper, .250” [6.35mm] for BTtooling.Figure 5-3 Measure Distance from ATC Carriage to Spindle6) To adjust DC machines, loosen the screw holding the resolver and rotatethe resolver. When the Z axis is in the correct position, tighten the screws.For AC machines, determine their offset by cold starting the machine thenjogging the Z axis. Enter the value in SV.7) Cold Start the machine and recheck the position.March 2003 Section 05: Automatic Tool Changers 121
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