Precision matthews PM-1236 Скачать руководство пользователя | Manualshive

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PM-236 v4 -207.indd

Everyday precautions

• This machine is intended for use by experienced users familiar with metal-

working hazards.

• Untrained or unsupervised operators risk serious injury.

• Wear ANSI-approved full-face or eye protection at all times when using the

machine (everyday eyeglasses are not reliable protection against flying par-

ticles).

• Wear proper apparel and non-slip footwear – be sure to prevent hair, clothing

or jewelry from becoming entangled in moving parts. Gloves – including tight-

fitting disposables – can be hazardous!

• Be sure the work area is properly lit.

• Never leave chuck keys, wrenches or other loose tools on the machine.

• Be sure the workpiece, toolholder(s) and machine ways are secure before

commencing operations.

• Use moderation:

light

cuts,

low

spindle speeds and

slow

table motion give

better, safer results than “hogging”.

• Don’t try to stop a moving spindle by hand – allow it to stop on its own.

• Disconnect 220 Vac power from the mill before maintenance operations such

as oiling or adjustments.

• Maintain the machine with care – check lubrication and adjustments daily

before use.

• Clean the machine routinely – remove chips by brush or vacuum, not com-

pressed air (which can force debris into the ways).

No list of precautions can cover everything.

You cannot be too careful!

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Содержание PM-1236

Страница 1: ...HP 1500W motor 220 Vac single phase Speed range from 65 to 1810 rpm Power cross feed traveling motor controls D1 4 camlock spindle mount 1 1 2 inch spindle bore Weight including stand 1200 lb PM 1236 with optional coolant system live center and QC toolpost 701 Parkway View Drive Pittsburgh PA 15205 Copyright 2016 Quality Machine Tools LLC ...

Страница 2: ...er training machine modifications or misuse This manual describes PM 1236 machines as shipped from April 2016 There may be detail dif ferences between your specific machine and the information given here with little or no impact on functionality If you have questions about any aspect of the manual or your machine please call 412 787 2876 east coast time or email us at admin machinetoolonline com Y...

Страница 3: ... and slings may be a better option If only an engine hoist is avail able with limited space either side the machine can be fully assembled on a pair of 4 wheel dollies then rolled to its final position The assembly can then be raised by screw jack or other means to free the dol lies 2 Position the LH and RH stand cabinets 34 inches apart in the lathe s final location Mark the floor to allow the ca...

Страница 4: ... up to the hoist hook The slings must be inboard of the leadscrew feed shaft and motor control rod to avoid damage to those components 12 Slowly lift the lathe controlling any tendency for it to swing as it clears the pallet 13 Roll the lathe into position Figure 1 5 then hover it an inch or so over the chip tray This will allow you to mark the perimeters of the lathe bed pedestals for the purpose...

Страница 5: ...rm and follower Figure 1 6 raise the drawbar 3 adjusting the stop screw 4 to stop further upward movement of the drawbar at the point where the microswitch is actuated but no further additional travel may bend the switch arm Hook the extension spring onto its anchor bolt then raise the footbrake treadle to the desired height off 2 3 Figure 1 6 Footbrake switch the floor Tighten all four socket hea...

Страница 6: ...riage and cross slide to approximate mid travel Make certain that the power feed levers are disen gaged Figure 1 10 Make certain that the motor control switch is set to OFF mid travel Figure 1 9 7 8 9 0 Figure 1 9 Chuck guard Connect 220 Vac power The power lamp far left of the orange color E Stop button should light unless circuit breaker QF1 in the electrical box has tripped Be sure the E Stop b...

Страница 7: ...l hours of machine time some users drain and refill the headstock and carriage feed gearbox Lubricants are specified in Section 4 Other users prefer to delay this service action for at least 50 hours of running time No specific recommendation is given by the manufacturer Figure 1 10 Feed control levers on apron ALIGNING THE LATHE The most important attribute of a properly set up lathe is its abili...

Страница 8: ...riction clutch that allows the saddle to be stopped precisely at any point along the bed The spindle has a 1 1 2 in clearance bore and MT5 internal taper It runs in tapered roller bearings and is driven by a 9 speed gearbox coupled by Vee belts to a 2 HP 1500 W 220 Vac single phase motor Two step pulleys provide a choice of high and low speed drives giving a total of 18 spindle speeds 9 high range...

Страница 9: ...330 550 700 910 1200 High range rpm 100 280 300 360 500 840 1095 1400 1810 Carriage drive thread cutting Leadscrew 8 tpi Inch threads Choice of 36 from 4 to 60 tpi Metric threads Choice of 32 from 0 4 to 7 mm pitch Carriage drive turning operations Choice of feed rates from 0 002 to 0 048 in spindle rev Cross slide drive Choice of feed rates from 0 001 to 0 009 in spindle rev Spindle Chuck facepla...

Страница 10: ... sure the work area is properly lit Never leave chuck keys wrenches or other loose tools on the machine Be sure the workpiece toolholder s and machine ways are secure before commencing operations Use moderation light cuts low spindle speeds and slow table motion give better safer results than hogging Don t try to stop a moving spindle by hand allow it to stop on its own Disconnect 220 Vac power fr...

Страница 11: ...of their work there is typically no need to swap belts unless a particular job calls for a 50 speed increase If the drive needs to be recon figured Loosen the three hex head bolts securing the Figure 3 3 Twin Vee belts drive the headstock gearbox WHAT IS NOT IN THIS SECTION The PM 1236 is a conventional engine lathe that re quires little explanation except for details specific to this particular m...

Страница 12: ... stop screw the head of which fits closely in a groove at the threaded end of the stud The function of the stop screw is not to clamp the stud in place but instead to prevent it from being unscrewed when the chuck is not installed Figure 3 5 Camlock stud TO INSTALL A CHUCK Disconnect the 220V supply from the lathe Chucks and faceplates are heavy the 6 in and 8 in chucks weigh 22 lb and 34 lb They ...

Страница 13: ...2 3 4 5 replace the stop screw If the cam marker goes beyond the second Vee 6 o clock screw the stud IN one more turn then re place the stop screw If the markers are correctly aligned repeat the tight ening sequence as step 3 light force Repeat the sequence two more times first with moderate force then fully tighten Figure 3 8 Cam in locked condition TO REMOVE A CHUCK Disconnect the 220V supply fr...

Страница 14: ...le end view until resistance is felt then turn the handle a little more to eject the tool Conversely to install a taper tool make certain that the quill is out far enough to allow firm seating For taper turning the tailstock may be offset by adjusting the set screws on either side arrowed in Figure 3 10 To move the tailstock to the rear for instance the screw on the lever side would be unscrewed t...

Страница 15: ... 0 0039 0 0023 0 0020 0 0020 0 0019 0 0015 0 0013 0 0012 0 0011 0 0009 0 0007 0 0241 0 0213 0 0206 0 0193 0 0160 0 0154 0 0124 0 0118 0 0098 0 0078 0 0046 0 0041 0 0040 0 0037 0 0031 0 0026 0 0024 0 0023 0 0019 0 0014 0 0480 0 0427 0 0413 0 0385 0 0320 0 0309 0 0247 0 0235 0 0196 0 0157 0 0093 0 0082 0 0080 0 0074 0 0062 0 0053 0 0048 0 0046 0 0038 0 0028 Movement per spindle revolution in Carriag...

Страница 16: ...re 3 16 Micrometer carriage stop Figure 3 15 Feedshaft clutch gearbox Spring pressure is adjusted by two set screws on either side of the feed shaft arrowed in Figure 3 15 Setting the spring pressure is a process of aiming for the best compromise between too high damaging feed pressure and too low which might mean unexpected stopping for no good reason Setting the clutch to work reliably with the ...

Страница 17: ... 1 4 in square HS tool bit align it precisely on the left hand 30o scale mark then wearing safety glasses rap the tool bit sharply with a hammer Figure 3 17 Setting up the compound for 30o infeed A new reference mark is stamped on the cross slide at 30 de grees To set the compound for thread cutting rotate it clock wise to bring the right hand 30o scale mark in line with the new reference mark For...

Страница 18: ... first thread cutting pass the leadscrew is run at the selected setting Figure 3 20 and the carriage is moved by hand to set the cutting tool at the starting point of the thread With the tool just grazing the work piece the split nut lever is lowered to engage the lead screw This can be done at any point provided the split nut remains engaged throughout the entire multi pass process When the first...

Страница 19: ...or 8 4 8 Applies to odd number TPI values 7 etc re engage at the line you started with OR the diametrically opposite line can be any line pair 1 5 2 6 etc not necessarily 4 8 8 Applies to fractional values 4 1 2 etc re engage on the same line you started with for the first pass can be any line number not just the 8 TPI Line TPI Line TPI Line TPI Line 4 8 16 32 4 1 2 8 9 4 8 18 2 4 6 8 36 1 8 9 1 2...

Страница 20: ...wer gear is driven by the 120T gear Figure 3 23 Metric setup GAP BED A 9 inch long section of the bed at the headstock end can be removed to allow turning of diameters up to 17 1 2 in Figure 3 25 Figure 3 25 Gap insert To remove the gap insert back out the arrowed pusher screw two or three turns then remove the four large socket head screws securing the insert to the bed To minimize cosmetic damag...

Страница 21: ...arrowed in Figure 3 29 Raise the two lower fingers to just touch the workpiece not de flecting it then close and secure the upper casting Lower the top finger to just touch the workpiece then apply oil at the point of contact Figure 3 29 Steady rest LOCKING THE SLIDES When face cutting large diameter surfaces for exam ple it is often desirable to lock the carriage Less fre quently it can be helpfu...

Страница 22: ... effects on the lathe and the coolant pump If you use water miscible cutting fluid bear in mind that the ratio of product to water is important too much water causes excessive corrosion and other problems Check the mix from time to time using a refractometer If this is not available make up a small batch according to the product directions then replace with a fresh batch when the old one becomes u...

Страница 23: ... oil Take time to prepare Remove the belt cover left of the headstock Remove the fill plug on the top surface of the head stock Figure 4 1 Place a drain pan 2 gallons minimum on a stool or other support at about the height of the chip tray Fold a sheet of card stock to make a Vee shape drain channel This will be pressed against the headstock below the drain plug angled downward into the drain pan ...

Страница 24: ...warm the oil if necessary then remove fill plug 2 Figure 4 2 With the Vee channel in place remove drain plug 3 and allow the gearbox to empty completely Replace the drain plug To refill the gearbox use a funnel attached to a flexible plastic tube inserted into the fill hole Add oil to the halfway mark on the sight glass Figure 4 4 about 1 qt APRON DRAIN REFILL Remove the fill plug Figure 4 5 Remov...

Страница 25: ... BALL OILERS Use a pump type oil can preferably with a flexible spout tipped with a soft tube The ID of the tip should be large enough to seat on the oiler s brass flange more than spanning the spring loaded steel ball When the oil can tip is firmly pressed onto the brass surface oil pressure will displace the ball allowing oil to flow into the bearing Before oiling check that the ball is not stuc...

Страница 26: ... then re tighten the lock nut Split nut adjustment If the split nut becomes excessively loose with appre ciable side to side movement this may be corrected by adjusting the gib at the back of the apron item 67 on the apron schematic Section 5 Loosen screws 68 holding the gib to the apron casting then tighten the gib by screws 72 left of the threading dial assembly Re tighten the securing screws an...

Страница 27: ...andths Advance the tailstock quill to bring the centers to gether Place a scrap of hard shim stock or an old style dou ble edge razor blade between the centers Figure B Advance the tailstock quill to trap the blade then lock the quill If the centers are aligned the blade will point squarely front to back If not adjust the tailstock off set by a series of very small adjustments If the range of quil...

Страница 28: ...t s critical when the workpiece is held in a chuck or a collet often about 90 of the workload in a typical model shop Assuming no appreciable deflection of the workpiece too thin too far from the chuck taper prob lems in a chuck collet setup are due to misalignment of the spindle axis relative to the lathe bed This is usually correctable by re aligning the headstock Misalignment of the spindle by ...

Страница 29: ...oncentric with the spindle Compare dial indications when traversing from 1 to 2 Ideally there will no change Figure E Factors that may affect runout Straightness and roundness of the drill rod Chuck installation check for cleanliness and tightness Pointing accuracy of the chuck the gripping surfaces of chuck jaws may not be parallel with the axis of the chuck and spindle especially likely if the c...

Страница 30: ...e A4 CAUTION Correcting headstock misalignment is a multi step pro cess requiring a number of extremely small adjust ments each one followed by an alignment test either cut and try or one of the other methods described previ ously A scarcely detectable rotation of an adjusting screw can be the difference between perfect alignment and unacceptable taper In other words think in terms of thousandths ...

Страница 31: ...31 PM 1236 v4 1 2017 indd Section 5 PARTS Mdel PM 1236 Electrical schematic ...

Страница 32: ...M 1236 v4 1 2017 indd HEADSTOCK Lever pinion assembly qty 2 for C B A and 1 2 3 gear shift ers 114 meshes with 108 Two sets of this assembly C B A shifter LH and 1 2 3 shifter RH Leadscrew direction control ...

Страница 33: ...8 x 16 skt hd 5 86 Ball bearing 20 x 47 x 14 1 26 2040 End cap 1 87 Circlip 1 27 2028 Oil seal 1 88 Screw M6 x 30 skt hd 6 28 Ball bearing 20 x 52 x 15 1 89 Screw M6 x 20 set 2 29 2039 Top shaft 1 90 Plug oil drain M16 1 5 1 30 2017 Gear 21T 1 91 Oil seal 16 x 2 4 1 31 Key 5 x 18 2 92 Plug oil fill M16 1 5 1 32 2015 Gear 58T 1 93 2044 Headstock cover 1 33 2016 Gear 45T 1 94 2062 Oil seal 1 34 Circ...

Страница 34: ...seal 20 40 10 1 117 2079 Collar 1 57 2004A Flange 1 118 2048 Shoe forward reverse 1 58 2066 Oil seal 2 119 2052 Shaft leadscrew fwd rev 1 59 Gear M1 25 external 1 120 Pin 5 x 30 1 60 Screw M6 x 12 skt hd 3 121 2051 Hub 1 61 Key 5 x 8 1 83 119 and related items select fwd or rev Gear size depends on pitch of thread being cut leadscrew rotation relative to the spindle CHANGE GEARS NOTE Gear sizes sh...

Страница 35: ...35 PM 1236 v4 1 2017 indd CARRIAGE FEED GEARBOX Input from ex ternal gear train Leadscrew drive Carriage feed ...

Страница 36: ... 69 3022F Sleeve 1 20 3046B Oil seal 2 70 3086D Oil seal 1 21 3045B Bushing 1 71 Screw M6 x 25 skt hd 5 22 3033B Shaft 2 1 72 3013E Shaft 1 23 3029B Gear 24T 1 73 Oil seal 18 x 30 x 10 1 24 3031B Gear 16T 1 74 Plug oil fill M16 1 5 2 25 3032B Gear 18T 1 75 Oil seal 16 x 2 4 2 26 3003B Gear 20T 1 76 Screw M8 x 15 skt hd 8 27 3030B Spacer 1 77 Screw M6 x 10 set 1 28 3002B Gear 28T 1 78 3012D Bushing...

Страница 37: ... 12 skt hd 4 36 Screw M6 x 12 button hd 4 10 9206 Pipe connector 1 37 9201A Louvred cover 1 11 9207 Washer nitrile 1 38 9205 Gasket 1 12 7015 Bracket 1 39 9203 Filter 1 13 Screw M5 x 12 skt hd 2 40 9204 Flange 1 14 9208 Pipe base 1 41 Pipe clip 1 15 X6121 06011A Pipe connector 1 42 Pipe 16 x 1000 1 16 Screw M6 x 12 skt hd 2 43 Coolant pump 1 17 Screw M8 x 35 skt hd 2 44 Screw M5 x 10 skt hd 4 18 S...

Страница 38: ...49 3 Connecting sleeve 1 58 1052 Stop post 1 65 1049 2 Brake shaft 1 59 Stop screw M6 x 30 1 66 1050 Brake treadle 1 60 1054 Draw bar 1 MOTOR MOUNT COVER Ref Mfr No Description Qty Ref Mfr No Description Qty 1 1021 Cover 1 9 Screw M6 x 8 set 1 2 1002 Threaded stud 2 10 Motor 1 3 1001 Knurled nut 2 11 Washer 4 4 1024 Motor mount 1 12 Screw 4 5 1013 Washer 3 13 Nut M6 2 6 Screw 3 14 Screw M8 x 45 he...

Страница 39: ... Clamp screw 5 6005 Handwheel 21 6021 Lever 6 4037 Leaf spring 22 6017 Clamp screw 7 6010 Graduated collar 23 6004 Lever 8 Screw M6 x 16 24 Pin 5 x 30 9 6011 Flange 25 6018 Collar cam 10 Oiler 26 Screw M10 x 50 11 Thrust bearing 12 x 26 x 8 27 6003 Screw 12 Key 4 x 15 28 6002 Tailstock base 13 6006 Tailstock leadscrew 29 6019 Pull rod 14 6023 Nut M10 30 6020 Shoe 15 Oiler 31 Nut M12 16 Screw M6 x ...

Страница 40: ...16 1 24 8101 Thrust bearing 12 x 26 x 9 1 7 5003 Slide T nut 1 25 5026A2 Datum plate 1 8 5004 Detent pin 1 26 Rivet 2 x 4 2 9 Spring comp 1 2 x 4 8 x 8 1 27 Screw skt hd M6 x 25 2 10 Oiler 1 28 5013 Leadscrew flange 1 11 Nut M6 1 29 8101 Thrust bearing 12 x 26 x 9 1 12 Screw set M6 x 16 1 30 5014A3 Graduated collar 1 13 5001 Compound swivel base 31 5016A Handwheel 1 14 5107 T bolt M10 2 32 5028 Wa...

Страница 41: ...037 Leaf spring 1 12 Screw M10 x 30 skt hd 4 35 5122A Handwheel 1 13 Oiler 5 36 5028 Washer 1 14 5115 Cross slide gib screw 2 37 Screw M6 x 16 skt hd 1 15 5102 Cross slide 1 38 4033 Shoulder bolt 1 16 Screw M6 x 12 1 39 4032 Handle 1 17 5105 Bushing 1 40 8102 Thrust bearing 15 x 28 x 9 1 18 5114 Cross slide gib 1 41 5125A Leadscrew hub 1 19 Screw M4 x 12 1 42 Screw M8 x 30 skt hd 2 20 5104A2 Split...

Страница 42: ...42 PM 1236 v4 1 2017 indd CARRIAGE continued ...

Страница 43: ... 2 B9 Screw set M6 x 16 3 A6 8209 Nose 2 B10 Nut M6 3 A7 Screw set M6 x 10 2 B11 Nut M6 1 A8 Nut M6 2 B12 Screw skt hd M8 x 25 1 A9 Screw set M6 x 16 2 B13 8201 Steady rest base 1 A10 8201 Follower base 1 B14 Nut M12 1 A11 Screw skt hd M8 x 40 2 B15 Washer 1 B16 6020 Shoe 1 B1 8205 Knob 3 B17 Screw sq hd M12 x 60 1 B2 Screw set M6 x 6 3 B18 Roll pin 4 x 25 1 B3 8207 Bushing 3 B19 8203 Clamp screw ...

Страница 44: ...n 5 x 25 1 14 4031 Hub 41 4020 Bushing 1 15 Oiler 42 4019 Gear 14T 1 16 4030 Gear shaft 15T 43 Pin 5 x 25 1 17 Screw skt hd M6 x 12 1 44 4018 Shaft 1 18 4035 Washer 1 45 4017 Worm gear 24T 1 19 Screw skt hd M6 x 10 4 47 Screw set M5 x 33 2 20 4038 Washer 1 49 Screw skt hd M6 x 10 1 21 4039 Post 1 50 Screw set M6 x 6 1 22 Key 5 x 16 1 51 4043 Limit stop 1 23 4037 Leaf spring 1 52 4025 Lock collar 1...

Страница 45: ...ption Qty 57 4021 Stop flag 1 67 3022 Gib split nut casing 2 58 Screw set M5 x 12 1 69 Screw skt hd M5 2 59 4023 Split nut shaft 1 70 Split nut assembly 1 60 Screw skt hd M8 x 30 1 72 Set screw 2 61 Washer 2 73 Nut 2 62 Screw skt hd M10 x 20 2 74 4006 Threading dial 1 63 Washer 1 75 4005 Housing 1 64 Nut M6 1 76 Screw skt hd M6 x 65 1 65 4044 Lever split nut shaft 1 77 4044 Gear leadscrew follower...

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