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ST, DS - Alignment Correction - Introduction

Correct lathe alignment makes a common centerline through the spindle [1], the turret pocket [2], and the tailstock [3] or
secondary spindle. If the turret crashes, the lathe can lose its alignment. This procedure tells you how to correct the lathe
alignment. For clarity, the illustrations hide surrounding components.

Prerequisites

Make sure the machine is level. Refer to the 

Lathe Leveling Video

.

Haas Technical Documentation

ST, DS - Alignment Correction

Scan code to get

the latest version

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Translation

Available

Applies to machines built from: 

June, 2010

Copyright 2018 by Haas Automation, Inc. No unauthorized reproduction | Last Published On November 05, 2015

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Summary of Contents for DS

Page 1: ...u how to correct the lathe alignment For clarity the illustrations hide surrounding components Prerequisites Make sure the machine is level Refer to the Lathe Leveling Video Haas Technical Documentation ST DS Alignment Correction Scan code to get the latest version of this document Translation Available Applies to machines built from June 2010 Copyright 2018 by Haas Automation Inc No unauthorized ...

Page 2: ...ount T 0017 7 T 0017 Coaxial Indicator Mount 8 Face Indicator Tool 9 Tailstock Alignment Tool 10 Spindle Alignment Tool 11 Optional Spindle Head Alignment Tool for ST 20 30 DS 30 only To make this tool refer to ST 20 ST 30 DS 30 Spindle Head Alignment Tool To attach this tool you need a 1 2 13x1 flat head cap screw Refer to the Field Service Lathe Level and Alignment Checklist for the part numbers...

Page 3: ...alignment on the top of the alignment tool If the error is greater than 0 0004 0 01 mm per 10 254 mm correct the alignment in the steps that follow Note This adjustment is rare If the error is greater than 0 0004 0 01 mm measure the alignment again Make sure the alignment tool is aligned and make sure your indicator setup is stable Copyright 2018 by Haas Automation Inc No unauthorized reproduction...

Page 4: ...nly to machines with the Y Axis option STEP 1 Measure the squareness of the Y Axis to the Z Axis Refer to ST DS Y Axis Square to Z Axis Check Note This procedure is very similar to the procedure ST DS X Axis to Z Axis Squareness Correction Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 14 67 ...

Page 5: ... steps that follow STEP 4 Jog the Z Axis a small amount to move the indicator away from the spindle You will jog the X and Y Axes to move the turret to get access to the screws There are 16 screws 1 that attach the saddle to the linear guide trucks 4 for each truck and 10 screws 2 that attach the saddle to the ballscrew nut housing Copyright 2018 by Haas Automation Inc No unauthorized reproduction...

Page 6: ...em STEP 6 Jog the X and Y Axes to move the turret to get access to the 10 screws that attach the saddle to the ballscrew nut housing STEP 7 For some of the screws you must use the access holes in the wedge There are access holes on the left side 1 Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 16 67 ...

Page 7: ... the Y Axis the full distance STEP 10 Loosen a small amount the 16 screws 1 that attach the saddle to the linear guide trucks and the 10 screws 2 that attach the saddle to the ballscrew nut housing Note After you loosen the screws tighten them enough to let you control the adjustment but keep them loose enough to let you correct the alignment This is approximately 5 10 ft lb 7 14 Nm Copyright 2018...

Page 8: ...ough to allow the casting to rotate but tight enough to prevent unwanted movement STEP 12 Note You can choose any one of the 4 corner screws 1 as the pivot screw STEP 13 Remove 1 screw at the corner opposite to the pivot screw Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 18 67 ...

Page 9: ...ain STEP 15 The indicator shows amount and direction of the error STEP 16 Insert a pry bar into the empty screw hole and push the wedge into alignment Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 19 67 ...

Page 10: ...correction STEP 19 Tighten the 16 screws 1 that attach the saddle to the linear guide trucks Tighten to approximately half of the specified torque For torque values refer to Haas Fastener Torque Specifications Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 20 67 ...

Page 11: ...ghten the 10 screws 1 that attach the wedge to the ballscrew nut housing Tighten to approximately half of the specified torque For torque values refer to Haas Fastener Torque Specifications STEP 22 Measure the squareness Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 21 67 ...

Page 12: ...screws 1 that attach the wedge to the linear guide trucks For torque values refer to Haas Fastener Torque Specifications STEP 25 Replace the plugs P N 20 4300 that cover some of the screws Caution Without the plugs chips can build up in the holes and the wiper can sweep them into the linear guides and cause damage Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On...

Page 13: ...ss of the X Axis 1 to the spindle centerline 2 STEP 1 Refer to ST DS X Axis to Z Axis Squareness Check to measure the squareness of X Axis movement to the Spindle Centerline Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 23 67 ...

Page 14: ...ee the coordinate position display We will return to this 0 DIST TO GO position in the steps that follow STEP 4 Jog the Z Axis a small amount to move the indicator away from the spindle Jog the X Axis to move the turret to get access to the screws Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 24 67 ...

Page 15: ... wedge to the linear guide trucks Note After you loosen the screws tighten them enough to let you control the adjustment but keep them loose enough to let you correct the alignment This is approximately 5 10 ft lb 7 14 Nm STEP 7 Tighten 1 screw to approximately 20 ft lb 27 Nm to use as a pivot in the steps that follow Note Keep the pivot screw loose enough to allow the casting to rotate but tight ...

Page 16: ...as the pivot screw STEP 9 Remove 1 screw at the corner opposite to the pivot screw STEP 10 Jog the X Axis and the Z Axis until the DIST TO GO values are 0 Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 26 67 ...

Page 17: ...ion of the error STEP 12 Insert a pry bar into the screw hole and push the wedge into alignment STEP 13 The wedge moves around the pivot screw Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 27 67 ...

Page 18: ...mately half of the specified torque the 16 screws that attach the wedge to the linear guide trucks For torque values refer to Haas Fastener Torque Specifications STEP 16 Measure the squareness Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 28 67 ...

Page 19: ...torque values refer to Haas Fastener Torque Specifications STEP 18 Measure the squareness STEP 19 If the alignment is correct torque the 16 screws that attach the wedge to the linear guide trucks For torque values refer to Haas Fastener Torque Specifications Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 29 67 ...

Page 20: ...revious section STEP 22 For machines with a Y Axis the steps to align the X Axis are the same as the previous steps Loosen the 16 screws that attach the wedge to the linear guide trucks and the 8 screws that attach the wedge to the ballscrew nut housing The only difference is that the 8 screws that attach the wedge to the ballscrew nut housing are in the rear as shown 1 Copyright 2018 by Haas Auto...

Page 21: ...he X Axis movement 2 which is set by the alignment of the turret assembly 3 to the wedge 4 STEP 1 Refer to ST DS Turret to X Axis Parallelism Check to measure the parallelism of the turret to X Axis Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 31 67 ...

Page 22: ...ntrol the adjustment but keep them loose enough to let you correct the alignment This is approximately 5 10 ft lb 7 14 Nm STEP 4 Tighten 1 screw to approximately 20 ft lb 27 Nm to use as a pivot in the steps that follow Note Keep the pivot screw loose enough to allow the casting to rotate but tight enough to prevent unwanted movement Copyright 2018 by Haas Automation Inc No unauthorized reproducti...

Page 23: ...on the right side to raise or lower the turret housing casting on right side STEP 6 For example to raise the turret housing casting on the left side do these steps Loosen the lock nuts STEP 7 Turn the jack screw counterclockwise to make space between the jack screw and the turret housing casting Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 3...

Page 24: ...e the turret housing casting STEP 9 The turret housing casting turns around the pivot screw STEP 10 Monitor the indicator while you turn the jack screw Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 34 67 ...

Page 25: ... Specifications STEP 12 Measure the alignment STEP 13 If the alignment is correct torque the 4 screws For torque values refer to Haas Fastener Torque Specifications ST DS Toolholders to the Spindle Centerline Correction This section tells you how to align the toolholders 1 to the spindle centerline 2 Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2...

Page 26: ...Copyright 2018 by Haas Automation Inc No unauthorized reproduction Last Published On November 05 2015 36 67 ...

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