R0015312 Finalise V Notch Subframe

Alignment criteria for v notch sub frame

Difficulté

Hard Difficile

Durée

4 hour(s) heure(s)

R0015312_Finalise_V_Notch_Subframe_Screenshot_2023-09-22_085135.png

Introduction

Tools Required

2 off 2 meter straight edge

1 meter straight edge

Engineers level

Engineers 12" square

Feeler gauges

Standard hex key set

Standard HSS drill set

Standard tap set

Clamp blocks

600m steel rule

Vernier

300mm parallels

1" parallels

Parts required

R0015310 install v notch subframe

Étape 1 - Unless otherwise stated

Use locktite 243 on all fasteners

Use loctite 572 on all threaded pneumatic connection

Pen mark all fasteners to show finalised

Étape 2 - Set Top mount Parallel

Set top beam mount parallel to ring subframe

1 Measure indicated points both sides

2 Adjust in directions shown to set both measurements to match . release M12 fasteners indicated and adjust using clearance in holes

Take note of measurement set to. Accuracy of +- 0.25mm

Étape 3 - Measure offset

Measure distance from shaft to front face of beam mount as shown using vernier

Check both sides are consistent

Calculate new measurement by adding step 2 measurement to vernier measurement

for example 30.7mm (vernier measurement0+ 469.5mm (parallel set measurement) = 500.2mm

500.2mm will be the bottom shaft position measurement

Étape 4 - Adjust bottom mount

Using step 3 calculation, set lower position to measurement obtained

1 Position 2 off small parallels and 1 off large parallel as shown

2 Take indicated measurement

3 Move lower beam mount to achieve correct measurement

4 Ensure 4 off M10 flat bottomed grub screws are touching main frame and hold position with G clamp and support blocks

Repeat for opposite side , double check all measurements when adjustment is carried out , until both measurements are exactly set to calculated measurement (tolerance +- 0.25mm )

Étape 5 - Level Lower mount

1 Level lower mount Y Axis as shown, using 1 meter straight edge and engineers level. Adjust using lower side M10 grubscrews

2 Level x axis of indicated blocks as shown. Use 2 small parallels and engineers level . Use M10 Grubscrews and M16 bolt beneath to adjust level

Repeat for both sides

Étape 6 - Finalise Fasteners

Finalise the following fasteners

1 Ensure 8 off grubscrews that hold vertical shaft position are swapped for M8 x 16 kcp grubscrews , glued and tightened

2 Ensure 8 off M16 bolts are glued and tightened

Étape 7 - Adjust Vertical

Use shaft setting block to check level of vertical shafts

1 Attach setting block to 1 off outside shaft as shown

2 Adjust lower beam molunt in direction shown to set level

3 Move setting block to other outer shaft and recheck level. Any discrepancy should be equalised between shafts

Étape 8 - Double Check

Double check all previous levelling and measurements to confirm all criteria has been met

Étape 9 - Squareness Check

V notch sub frame must be square clamps.

To check this

1 Use 2 meter straight edge against datum rollers as shown

2 Use 2 meter straight edge to align over front face of 4 vertical subframe shafts. Hold in position with 2 quick clamps

3 Use engineers square to check squareness. If this check shows any discrepancy, Recheck all previous settings to identify fault area

Étape 10 - Sign off

Quality check required at this stage from supervisor

Étape 11 - Final fixings

1 Drill and Tap M12 and fit 2 off M12 x 25 socket caps per side ( 4 off in total ) in lower beam mount

2 Drill 8mm hole and add 8mm spiral pin as shown ( 1 per side ) in lower beam mount

3 Drill 8mm hole and add 8mm spiral pin as shown ( 1 per side ) in upper beam mount

Étape 12 - Add Thread lock

Add Loctite 290 to all adjustment grubscrews used

16 off m10 x 12

Add Loctite 243 to M12 socket caps 8 off

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