Precision matthews PM-727M Скачать руководство пользователя страница 9

Страница: 9 / 29

PM-727MV v6 2020-10

Section 3 USING THE MILL

Allow the spindle to stop com-

pletely before shifting gears

L-1

115

L-2

220

L-3

320

H-1

600

H-2

1120

H-3

1700

FRONT PANEL CONTROLS

Connect the mill to a 110Vac outlet. Press the

Power

lamp switch, top center Figure 3-1, to energize the

control circuit (the lamp should light). This is a latching

switch – press once to energize, press again to de-en-

ergize.

The

E-stop

button, bottom right, is in series with the

Power switch. Like the Power switch, it de-energizes

the control circuit completely, but it should be used only

for its intended purpose – emergency disconnect. Once

the E-stop button is pushed in, it stays in until twisted

clockwise to release.

The spindle drive motor is controlled by the three push

buttons:

Left

= Forward (cw, looking down, used for

most milling/drilling operations)

Right

= Reverse (ccw, looking down)

Off

= Stop

SPINDLE SPEEDS

This is a gear-head machine with a constant speed mo-

tor and a two-stage gearbox providing a choice of six

spindle speeds. The first stage (L-H) selects the speed

range, high or low; the second stage (1-3-2) selects a

specific speed within that range.

Before switching on the spindle motor

be sure that

Excessive cutter noise, chatter, poor

finish and tool wear are often the result

of too high a feed rate, and/or too high a

spindle speed. If unsure, go slow!

Spindle speeds (rpm)

INSTALLING & REMOVING TOOLING

The spindle and drawbar are

designed for R-8 taper

collets, drill chucks and other arbors with the standard

7/16”-20 internal thread.

When installing or removing R8 tooling, set the spindle

speed to L1 for the best braking action. Alternatively, an

adjustable wrench can be used to grip the flats on the

bottom end of the spindle.

To install

: Hand-thread the drawbar into the R-8 device

until the washer, arrowed in Figure 3-2, is seated on the

Figure 3-1

Motor controls, gear shifters & DRO

both stages are properly engaged. Hand-rotate (jiggle)

the spindle forward and back while applying light pres

sure on each gear-shift knob, listening for the click as

the gears engage.

Figure 3-2

Spindle & drawbar (arrowed)

Содержание PM-727M

Страница 1: ...d ranges infinitely adjustable speed in each range 110Vac power Quill DRO for precise downfeed measurement Square column design dovetail ways Heavy cast iron construction Optional steel stand cabinet Weight including stand 575 lbs Model PM 727M ac induction motor Model PM 727V brushless dc motor Tachometer Speed control Spindle direction Forward Reverse Stop spindle OFF Power switch ...

Страница 2: ...machines as shipped from January 2015 There may be detail differences between your specific machine and the information given here with little or no impact on functionality Please email us if you have questions about any aspect of the manual or your machine see our website www precisionmatthews com for support addresses Your feedback is welcomed The collet locating screw could be in too far Back i...

Страница 3: ...left right travel of the table 2 Access to the back of the column for Z axis leadscrew maintenance if against a wall make sure it can be moved if access is required Power requirement is 110V 60Hz 1φ 20A circuit protection Extension cord not recommended if no alternative use 12 AWG not longer than 20 ft Before connecting power be sure that 1 The machine is on a firm footing 2 No chuck or collet is ...

Страница 4: ... variable speed brushless dc for the PM 727V The V model offers a significantly wider speed range than the M model 40 3000 rpm vs 115 1700 rpm The reversible spindle runs in high quality tapered roller bearings enclosed in a 2 1 2 diameter quill with coarse and fine downfeed options In the PM 727M an oil filled gearbox provides 6 spindle speeds from 115 to 1700 rpm The same gearbox in the PM 727V ...

Страница 5: ...0 1000 980 1860 1800 3000 Internal taper R8 Top end 6 splines 22 mm OD Quill travel 3 in Quill diameter 2 1 2 in Spindle nose to table 2 1 2 to 18 1 4 in Spindle centerline to front face of column 7 3 4 in Drawbar 7 16 20 16 mm wrench Table Size W 27 1 2 in x D 7 1 4 in Surface height over floor Approx 36 in Maximum load centered 200 lb Leadscrews Acme inch pitch 10 tpi Left right travel X axis 15...

Страница 6: ...ure the work area is properly lit Never leave chuck keys wrenches or other loose tools on the machine Be sure the workpiece and machine ways are secure before commencing milling or drilling hold downs and or vise fully tightened X Y Z axes locked cutting tool secured Use moderation light cuts low spindle speeds slow table mo tion give better safer results than hogging Don t try to stop a moving sp...

Страница 7: ...ny tendency for it to swing as it clears the pallet 8 Roll the mill to its working location then lower it into place Figure 2 2 9 Secure the mill to the bench or stand If this is a stand installation use the four bolts supplied The front two bolt locations are threaded Use lock washers and nuts for the back two 10 Level the mill using the table surface for reference shimming as necessary Assembly ...

Страница 8: ...ds in turn L 2 L 3 H 1 etc Check gear engagement each time then run for a few minutes The machine should now be ready for normal opera tions Optional After a few hours of run time you may wish to drain the gearbox to flush out any residue from the manufacturing process Refill the gearbox with the oil recommended in Section 4 Allow the spindle to stop com pletely before shifting gears If this doesn...

Страница 9: ... constant speed mo tor and a two stage gearbox providing a choice of six spindle speeds The first stage L H selects the speed range high or low the second stage 1 3 2 selects a specific speed within that range Before switching on the spindle motor be sure that Excessive cutter noise chatter poor finish and tool wear are often the result of too high a feed rate and or too high a spindle speed If un...

Страница 10: ...rilling mode coarse feed the mill functions like a standard drill press pull the upper lever toward you to lower the quill For milling operations the 3 lever hub is disengaged and the quill is controlled by the fine down feed handwheel The quill is locked by a lever on the left of the headstock Figure 3 1 Figure 3 5 Quill downfeed controls The quill pinion is driven by the lever hub 1 The fine con...

Страница 11: ...the drilling mode coarse feed the mill functions like a standard drill press pull the upper lever toward you to lower the quill For milling operations the 3 lever hub is disengaged and the quill is controlled by the fine down feed handwheel The quill is locked by a lever on the left of the headstock Figure 3 1 Coarse feed Figure 3 5 For drilling operations loosen knob 4 allowing the le ver hub to ...

Страница 12: ...er side unless a helper is on hand to restrain it Using an 18 mm wrench testing for moveability as you go carefully loosen the nuts by degrees Be es pecially careful if the head has not been moved before QUILL DRO The quill DRO is in metric mode when switched on Press the mm in button to display inches By pressing and holding the Up arrow incrementing or Down ar row decrementing the display can be...

Страница 13: ...ows a typical shop made holder it has a threaded arbor allowing the choice of two radius arms 6 and 10 inches measured from spindle centerline to indicator tip A collet is used to hold the arbor in this example 5 8 diameter The dimensions are arbitrary but note that the indicator must be firmly attached and the arm rock solid relative to the indicator spring force which can be considerable on plun...

Страница 14: ...elf It is more likely that the head stock is nodding forward rather than leaning back ward so start with say a 2 mil shim in line with the underside central headstock nut This is a tempo rary fix that will need to be checked if the headstock is tilted again 2 Shimming between the underside of the column and the main base casting This is a long term fix It is a two person procedure requiring an eng...

Страница 15: ...h out the need for indicating every time Most 4 vises have either 14 mm or 16 mm slots calling for shop made T shape adapter keys as Figure 3 16 It is well worth the effort to make these precisely Aim for a snug fit in both vise and table but not so tight that it takes more than reasonable effort to lift the vise clear The objective is allow the vise to be removed and replaced routinely accurately...

Страница 16: ...rfaces this is not obvious some of the interfaces look like bearing surfaces but are simply narrow gaps Every few hours of operation 1 Apply the recommended way oil with a dedicated short bristle brush such as the type used for apply ing flux 2 Use a similar brush to apply oil or grease to the leadscrews 3 Apply oil to the ball oilers see below BALL OILERS Use a pump type oil can with tip large en...

Страница 17: ...ernating between clockwise and counter clock wise rotation of the X or Y leadscrews the handwheel moves freely a few degrees but the table stays put This is backlash a feature of all leadscrews other than the precision variety found on CNC machines The accept able amount of lost motion depends on the user but 0 005 is generally a good compromise Smaller num bers are possible but overdoing it can l...

Страница 18: ...g the housing see below then rotating and re engaging it at the de sired tension clockwise to reduce counter clockwise to increase To adjust the tension 1 Wear heavy duty leather gloves for hand protection 2 Loosen one half turn but do not remove the knob holding the spring housing in place 3 While holding the housing firmly to stop rotation continue to loosen the knob to the point where the housi...

Страница 19: ...n 5 PARTS MOTOR CONTROLS Power Press once to energize press again to de energize Left Spindle Forward clockwise looking down on mill table Right Spindle Reverse counter clockwise Off Stop motor E Stop Emergency disconnect stays in until turned counter clockwise to release ...

Страница 21: ...aft Z5774 17 Retaining ring 15 ext Z5775 18 Handle Z5776 19 Z axis crank Z5777 20 Screw M8 x 12 set Z5778 21 Taper pin 6 x 18 2 Z5779 22 Ball bearing 6002 Z5780 23 Bevel Gear Z5781 24 Washer special Z5782 25 Ball bearing 51202 2 Z5783 26 Bearing housing Z5784 Ref Description Part 27 Screw M6x16 skt hd 3 Z5785 28 Washer 14 Z5786 29 Nut M14 flange Z5787 30 Cap Z5788 31 Screw M4x8 button hd Z5789 32 ...

Страница 22: ...22 PM 727MV v6 2020 10 Copyright 2020 Quality Machine Tools LLC BASE MILL TABLE COMPONENTS Fig 3 There may be detail differences between this representative drawing and the machine as supplied ...

Страница 23: ...12 18 Y axis leadscrew support flange Z5813 19 Oiler 3 Z5814 20 Screw M6 x 12 skt hd 2 Z5815 Ref Description Part 21 Y axis gib Z5816 22 Position indicator block Z5817 23 Y axisclamp lever 2 Z5818 24 Screw M8 x 50 skt hd Z5819 25 Y axis leadscrew nut Z5820 26 Screw M6 x 25 skt hd 8 Z5821 27 Taper pin 6 x 20 6 Z5822 28 X axis leadscrew support flange L Z5823 29 X axis dial flange L Z5824 30 X axis ...

Страница 24: ...5x10 phil hd 3 Z5854 52 Spring flange Z5855 53 Screw M5x10 flat hd Z5856 54 Oil drain plug Z5857 55 Headstock casting Z5858 56 Gear shift crank H L Z5859 57 Roll pin 4 x 10 2 Z5860 58 Screw M6 x 10 set Z5861 59 Gear shift shoe H L Z5862 Ref Description Part 60 Screw M6 x 8 set 2 Z5863 61 Nut M6 hex 2 Z5864 62 Gear shift shoe 2 3 1 Z5865 63 Gear shift crank 2 3 1 Z5866 64 Screw M4x20 skt hd 2 Z5867...

Страница 25: ...25 PM 727MV v6 2020 10 Copyright 2020 Quality Machine Tools LLC HEADSTOCK DRIVE COMPONENTS Fig 5 There may be detail differences between this representative drawing and the machine as supplied ...

Страница 26: ...78 Gear 27T Z5901 79 Gear 21T Z5902 80 Gear 36T Z5903 81 Shaft H L group Z5904 82 Key 5 x 70 Z5905 83 Key 5 x 36 Z5906 84 Screw M5 x 10 set 2 Z5907 Ref Description Part 85 Ball 6 5 Z5908 86 Compression spring Z5909 87 Gear 46T Z5910 88 Key 5 x 16 Z5911 89 Gear 18T Z5912 90 Retaining ring 28 int Z5913 91 Top casting plug 2 Z5914 92 O ring 23 6 x 3 55 Z5915 93 Motor 120V single phase 900 W Z5916 94 ...

Страница 29: ...6 x 8 set Z5946 9 screw M6 x 5 set Z5947 10 Dial bush Z5948 11 Graduated dial Z5949 12 Flange Z5950 Ref Description Part 13 Screw M4 x 7 skt hd 3 Z5951 14 Friction spring Z5952 15 Grip 3 Z5953 16 Lever 3 Z5954 17 Clamp knob Z5955 18 Hub Z5956 19 Spring Z5957 20 Retaining ring 25 Ext Z5958 21 Worm gear Z5959 22 Screw M8 x 55 skt hd 3 Z5960 23 Key Z5961 All dimensions in mm There may be detail diffe...

Результаты поиска

Содержание PM-727M

Отзывы:

Бренды по названию

Популярные бренды

Precision matthews PM-727M, Руководство пользователя

Результаты поиска

Содержание PM-727M

Отзывы:

Бренды по названию

Популярные бренды