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OPERATOR’S MANUAL

P 41 / 57

6. Adjustment of Ram Gib:

Ram gib is attached to the position between the ram and the turret dovetail. Tightness of ram

can be adjusted properly by gib bolts.

a. Loosen the ram lock bolts ( A ).

b. Clean the slideway and add the lubricant.

c. Loosen the nuts on gib bolts ( B ).

d. Use a screw dricer to adjust the gib bolts until the ram sides smoothly.

e. Lock up the nuts.

Fig.49

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Содержание LC-20VA

Страница 1: ...OPERATOR S MANUAL SHARP INDUSTRIES INC 310 370 5990 edition A02 LC 20VSG VH 25 Series ...

Страница 2: ...erations P 6 d Trouble Shootings P 10 B Headstock 20VB 20VC P 15 a Name of Machine Parts P 15 b Headstock Lubrication P 17 c Operations P 19 6 Machine Body P 26 A Name of Machine Parts P 26 B Machine Lubrication P 28 C Operations P 30 D ADJUSTMENT P 37 7 Transport Unpacking and Floor Space P 42 A Methods of Transport P 42 B Cautions for Unpacking P 44 C Floor Space P 44 8 Precision Alignment P 45 ...

Страница 3: ...OPERATOR S MANUAL P 3 3 MODIFICATION RECORDS DATE PAGE ORIGINAL MODIFIED ED MEMO 2010 6 7 44 FIG 54 A02 ...

Страница 4: ...cific instructions in operations and maintenance exactly 2 Safety Rules and Regulations 1 Wearing of loose clothes by operatiors is not allowed 2 Operators shall wear the goggles and safety boots 3 Do not allow the body to get too close to the machine while it is in revolution 4 Cautions must be exercised in machine handling in reference to the specific details in this manual 3 Capacity 1 Vertical...

Страница 5: ... spindle motor 3HP 4P 3HP 4P Weight 1400kg 1380kg 1370kg Vertical main spindle Spindle speeds variable 50HZ 60HZ 50 3750rpm 68 2280rpm 60 4500rpm 80 2760rpm Spindle taper NST 40 NST 30 or R8 Quilltravel 127mm Quill feed per revolution of spindle 0 04 0 08 0 14 Head swivel R L 90 F B 45 R L 90 R L 90 F B 45 Overarm travel 470mm Overarm swivel 360 Spindle nose to table 100 550mm 70 520mm Spindle cen...

Страница 6: ...P Collant pump 1 8HP Weight 1550kg 1760kg Vertical main spindle Spindle speeds Variable 50HZ 60HZ 50 3750rpm 50 3750rpm 60 4500rpm 60 4500rpm Spindle taper NST 40 NST 40 Quill travel 127mm 127mm Vertical feeds per revolution of spindle 0 04 0 08 0 14 0 04 0 08 0 14 Head swivel R L 90 F B 45 R L 90 R L 90 F B 45 R L 90 Overarm travel 470mm 470mm Overarm swivel 360 360 Spindle nose to table 100 550m...

Страница 7: ...OPERATOR S MANUAL P 4 57 5 Machine Body A Stepless Speed Headstock 20VS 20VA 20VSG 20VAG 20VHA a Name of Machine Parts FIG 1 ...

Страница 8: ...ted with dripping lubricant in the headstock it is to reassure driving machanism and smooth slidings Please refer to the chart as hereunder specified FIG 2 Item Position Lubricant Time s Q th 1 Headstock Matching Quill Holes KUOKUANG R 68 Twice Daily Full ...

Страница 9: ... the brake shoe might be loosed and some adjustment is required Use a flat head driver to adjust the bolt inside the hole at left front position of pulley cage Clockwise will tight the brake Counter clockwise will loost it 2 Chucking of tooling shank and dismantling First the spindle must be raised up to its maximum height The screw of draw bar is right turn When the screw is turned clockwise it i...

Страница 10: ...ower feed just press down the disengagment lever F 2 Maximum drilling capacity in automatic feed is 3 4 19mm 3 The power feed transmission engagement crank shall be placed at OUT position when the automatic feed is not in operation Do not move power feed transmission engagement crank when the spindle is in revolution 4 Do not use automatic feed when the turning speed is in excess of 3 000RPM 5 Do ...

Страница 11: ...ed to make it easier for the counter shaft to engage 3 To shift the low speed into the high one use the brake lever so as to put a stop to the spindle clutch Then turn the spindle slightly so that clutch may be engaged feasibly A click sound of engagement may be sensed at this moment b Speed change handwheel Stepless speed variation between high and low speeds may controlled by means of turning ha...

Страница 12: ... to tilt the head stock to the desired position d Lock up 4 lock nuts A evenly FIG 6 FIG 7 6 Headstock Tilting 20VS 20VSG 20VHS In and Out Tilting Fig 8 Turn loose evenly the eight adapter locking bolt P Both sides and turn the vertical adjusting worm shaft Q until the angle desired is obtained Lock up bolts P Both side tightly Note Do not loosen all the headstock bolts totally FIG 8 ...

Страница 13: ...ver B under the motor shaft Then use the two hexagonal concave bolts C that locked the bearing housing to insert into the two holes of the speed change spring pieces D Lock into the motor var disc E and evenly lock up the two bolts C Push down the speed change spring F so as to separate it from the retainer ring G d Take out the retainer ring G e Take off the two hexagonal bolts H that locked the ...

Страница 14: ...OPERATOR S MANUAL P 11 57 A C B C E G D F H FIG 9 2 Replacement of speed change belt R Fig 10 ...

Страница 15: ...hexagonal bolts L setting the pressboards from the top and take out the bolt housing M e Take off the six concave hexagonal bolts N f Use a soft mallet to hit the belt housing Q lightly upward so as to disengage it from the gear hoursing P g Reverse the order of dismantling to restore the assembly once the speed change belt is replaced Note Replacing speed change belt shall conform to that of our ...

Страница 16: ... OPERATOR S MANUAL P 13 57 P N O J L K M I Q FIG 10 3 Replacement of brake block Fig 11 12 ...

Страница 17: ... dismantle the upper belt housing c Remove the spindle pulley off d Use flat head screw driver to kick off the two half piece of brake shoe A e Remove the two springs B f Press the assembled brake shoe to rear support pin C first then to the front cam D g For new brake shoe some adjustment is required Fig 11 Fig 12 A D B C B A A B ...

Страница 18: ...OPERATOR S MANUAL P 15 57 B EADSTOCK 20VB 20VC a Names of Machine Parts 1 20 VB Headstock FIG 13 ...

Страница 19: ...OPERATOR S MANUAL P 16 57 2 20 VC Headstock FIG 14 ...

Страница 20: ...tock FIG 15 Item Position Lubricant Time s Q th 1 Head Stock Matching Quill Holes KUOKUANG R 68 ESSO FEBIS K53 Twice Daily Full 2 Bull Gear Bearing Sleeve GULF WAY 52 Twice Weekly Full 3 Counter Shaft Gear Worm Gear Cradle VACTRA NO 2 SHELL TONNA 33 Once Daily Full ...

Страница 21: ...ee and longer service life of the machine FIG 16 FIG 17 Item Position Lubricant Time s Q th 1 Clutch and Bearing Sleeve KUOKUANG R 68 ESSO FEBIS K53 Twice Weekly 5 10 Drops 2 Head Stock Matching Quill Holes GULF WAY 52 Twice Daily Full 3 Counter Shaft Gear Worm Gear Cradle VACTRA NO 2 SHELL TONNA 33 Twice Daily Full ...

Страница 22: ...e is cut off Note When the high speed change lever is placed at the low gear position then it is just on the opposite a Spindle Brake Before braking the power source must be switched off and waiting until the spindle speed is lower than 200 RPM before the brake lever A as shown in the figure on the left is pushed to the left rear or front to stop the turning and effectuate the bracking Push the br...

Страница 23: ...from three to five rounds Then use a soft mallet to hit lightly on the drawbar until the tooling shank comes off totally Note According to a Spindle Braking brake the spindle to a stop and the tooling shank may easily come off or chuck on 3 Headstock Tilting 20VB 20VC 1 In and Out Tilting Turn loose evenly the three adapter locking bolt P and turn the vertical adjusting worm shaft Q until the ange...

Страница 24: ... 57 2 Cross Tilting Loosen evenly the four lock nuts R and turn the worm shaft S until the desired angle is secured Then lock up the lock nuts R everly Note Do not loosen the lock nuts R totally during the adjustment Fig 21 ...

Страница 25: ...emed proper and fit Note In manual feed the feed control handle F must be placed at position F1 as shawn in Fig 22 2 Manual Micromotion Feed To effectuate the manual micromotion feed the powerfeed transmission engagement crank J Fig 22 shall be placed at OUT position and feed reverse knob D at the neutral position Feed control lever F must be pulled from F1 to F2 This is to engage the overload clu...

Страница 26: ...sm e When the feed reverse knob D pressed in ward Fig 22 it is for downward feed and vice versa The middle position is neutral f As shown in Fig 23 the working depth may be set by micrometer adjustment nuts K each graduation is 0 001 or 0 002 mm When the quill stop block I contacts the micrometer adjustment nut K the feed control lever F may slimply jump from F2 back to F1 position owing to the co...

Страница 27: ...elt wheel d Take off the two hexagonal nuts C for motor dismounting e Take out the drawbar D and drop the quill down to the lowest position f Push the hi low speed selector E to the right front position g Dismantle the six concave bolts H connecting the belt housing F and gear housing G Strike upward the belt housing V Belt and timing belt are therefore replaced h Reverse the aforesaid steps and r...

Страница 28: ...d take out the four pressure springs G c Remove the nuts P of three brake block and take off the bolts R as shown in Fig 26 Then replace the brake block S d Restore the machine machinism by reversing the steps once the new brake ring is installed Note The front belt pulley set M is stopped by the four 4 pressure springs G There fore it is necessary to press down not turning the springs vertically ...

Страница 29: ...OPERATOR S MANUAL P 26 57 6 Machine Body A Names Of Machine Parts a Machine Body Turret Ram And Bracket ...

Страница 30: ...OPERATOR S MANUAL P 27 57 ...

Страница 31: ...bricated by oil dripping Table gib surface and feed leadscrew are lubricated by the central forced type Fig 30 Position Lubricated Parts Lubricant Frequency Q ty A Inlet B Outlet Horizontal Spindle Drive Gear Taper Roller Bearings KUO KUANG R 68 ESSO FBIS K53 DTE 26 GULF WAY HARMONY First oil change at 3 months after installation Than every other 6 months Filled up to between H L in oil window C D...

Страница 32: ... ESSO FBIS K53 VACTRA 2 GULF WAY 52 SHELL TONNA 33 3 5 times daily by pulling 3 times each Filled up to upper leveL Fig 31 c Gear Housing Lubrication 20VSG 20VGA 20VHS 20VHA Position Lubricated Parts Lubricant Frequency Q ty A Inlet B Outlet Gears Inside Gear Housing KUO KUANG R 68 GULF WAY 52 VACTRA 2 ESSO FBIS K53 SHELL TONNA 33 HEAVY MEDIUM First oil change at 3 months after installation Then e...

Страница 33: ...dle and gear housing is correct If the gear housing motor is not turning correctly then the longitudal rapid feed will become impossible 2 Electric Switchs a Horizontal Reversing Switch A Turning of hourizontal spindle shall be in the direction as symbol b Control Switches As shown in the figure from left to right the switches are for vertical milling horizontal milling automatic cross table feed ...

Страница 34: ...r ON switch J Table power feed power OFF switch K Table power feed Hi Low select switch L Cooling select switch M Electric source ON OFF switch N Emergency stop switch O Jog Switch Figure 25 When change the speed gear of horizontal push the jog button O for instant turning to engage the gear smoothly P Table Power Feed Up Down Switch Q Table power feed cross way switch OPTION R Verical spindle Hi ...

Страница 35: ...er to move the pinion bolt C for the desired position of ram c Lock the end set bolt B at the rear end of ram before setting the lock bolt A at the front end Ram Swivelling a Use an open mouth spanner to loosen the four bolts E b Push the ram manually and turn it to the desired position before locking the nuts again E Fig 36 ...

Страница 36: ...he taper pin G to secure the positioning Lock up the four lock nuts E c Install the cutter shank arbor F and lock the upper taper shank by using draw bar H d Inser the separating sleeve into the proper position and install the cutter shank arbor bracket I1 Then repeat it for I 2 insert the remaining sleeves Lock the nut J e Lock tightly the upper nut K Note Reverse the steps in the conversion from...

Страница 37: ...pm 60Hz b Whenever the gear shifting is handicaped push the jog button O for instant turning of horizontal spindle to engage the gears easily Note Speed change is not allowed when the machine is running Fig 39 6 Zero position of dail ring of table feed a Loosen the nut bolt A of dial ring b Turn the dial ring B to zero position c Lock the nut bolt A of dial ring Fig 40 Fig 41 ...

Страница 38: ...the speed change disk C to the position of desirous feed rate d Push down the control switch of feed start Before push I down make certain the M is pushed down to let M indicator lamp beam e Operate the long feed lever D in the direction as arrowed f For rapid table movement pull lever E upward However the operator must know the direction of movement first so as to avoid the impact of cutter tool ...

Страница 39: ... of machine body c Loosen the four hexagonal bolts A on the motor mount d Take out V belt B e Assemble the components in the reverse order once the V belt is replaced Note 1 Upon installation of V belts each one of them shall keep an even and proper tension 2 Replacements of V belt shell conform to our company specifications Fig 43 ...

Страница 40: ...t b If the adjustment is too tight both the leadscrew and its nut will be worm out excessively and their service life will be shortened c Once the adjustments is completed try the manual feed to see if the sliding is smooth or not d Each turn of adjusting screw may reduce the backlash by 0 034mm 0 0013 Fig 44 2 Adjustment of Play Between Gibs As a result of long term operation between the sliding ...

Страница 41: ... and right sides of the saddle d Method of Adjustment If the Long feed handwheel is felt too loose by turning loosen the adjusting bolt on the right side of the saddle a little bit Then lock up the adjusting bolt on the left side before turning the handwheel again If the handwheel is too tight just reverse the steps repeatedly until the work table sliding is satisfactority smooth e Replace the ecc...

Страница 42: ...er b Move the saddle to the front part of the knee c Take off the front and rear wiper holders F of saddles d Clean the slideway and add the lubricant e Use a screw driver to adjust the gib bolts E in the right front and rear parts of the saddle f Employ the same methods to adjust the work table gib g Lock up the wiper holders F on the saddle Fig 47 ...

Страница 43: ...a Loosen the lock belt A by using hexagonal spanner b Take off the wiper holder B c Clean the slideway and add the lubricant d Move the knee to the highest position e Use a screw driver to adjust the bolts C in the left upward and bottom parts of the knee f Employ the same methods to adjust the work table gib g Restore and lock up the wiper holder B FIG 48 ...

Страница 44: ...n the ram and the turret dovetail Tightness of ram can be adjusted properly by gib bolts a Loosen the ram lock bolts A b Clean the slideway and add the lubricant c Loosen the nuts on gib bolts B d Use a screw dricer to adjust the gib bolts until the ram sides smoothly e Lock up the nuts Fig 49 ...

Страница 45: ... hoisted keep the personnel afar 2 Hsisting by eye bolt should be used as less as possible 3 To hoist the unpacked case by reinforced cable the motion shall observe strictly the instructions appeared on side of the wooden case 4 Keep the work table and saddle in the proper positions so as to keep the machine balance 5 Do not hoist the machine too high The best position is to keep the machine base ...

Страница 46: ...OPERATOR S MANUAL P 43 57 ...

Страница 47: ...4 After unpacking do not move the guard rail sliding surfaces and work table as long as the rustproof oil on them are not cleaned off and followed with the lubrication 5 Before the cleaning starts the sliding protective pieces must be dismantled and all guard rail sliding surface setting levers loosened When the rustproof oil is removed proper amount of lubricant should be injected onto various sl...

Страница 48: ...ery components is a matter of vital importance In order to maintain the primary machine precision following a long term operation regular precision alignment is indispensable to the upgrading of work quality Beside it may extend the machine service life For details of components to be aligned and precision requirements please refer to the table of precision Inspection ...

Страница 49: ...N 0 06 m 0 06 m 2 VERTICAL SPINDLE NOSE RUN OUT 0 01 3 VERTICAL SPINDLE FACE TURE 0 015 4 VERTICAL SPINDLE HOLE RUN OUT AT FACE OF SPINDLE AT END OF 300mm TEST BAR 0 01 0 02 5 PARALLELISM OF LONGITUDINAL MOVE MENT OF TABLE WITH IT S TOP 0 03 6 PARALLELISM OF CROSS MOVEMENT OF TABLE WITH IT S SURFACE 0 02 300 7 PARALLELISM OF LONGITUDINAL MOVEMENT OF TABLE WITH MIDDLE T SLOT 0 03 ...

Страница 50: ... OF SPINDLE HEAD WITH TABLE SURFACE LONGITUDINAL DIRECTION CROSS DIRECTION HIGH AT FRONT OF TABLE 0 025 300 0 025 300 10 SQUARENESS OF TABLE SURFACE WITH VERTICAL MOVEMENT OF KNEE LONGITUDINAL DIRECTION CROSS DIRECTION HIGH AT FRONT OF TABLE 0 02 300 0 02 300 11 SQUARENESS OF TABLE TOP WITH VERTICAL SPINDLE LONGITUDINAL DIRECTION CROSS DIRECTION HIGH AT FRONT OF TABLE 0 02 300 0 02 300 ...

Страница 51: ...ORIZONTAL SPINDLE FACE RUN OUT 0 01 14 HORIZONTAL SPINDLE FACE TRUE 0 015 15 HORIZONTAL SPINDLE HOLE RUN OUT AT FACE OF SPINDLE AT END OF 300mm TEST BAR 0 01 0 02 16 PARALLELISM OF TABLE TOP WITH HORIZONTAL SPINDLE HIGH AT FRONT OF TABLE 0 01 0 02 17 TABLE TOP PARALLELISM OF CROSS MOVEMENT WITH HORIZONTAL SPINDLE IN VERTICAL IN HORIZONTAL 0 02 300 0 02 300 ...

Страница 52: ...SQUARENESS OF MIDDLE T SLOT WITH HORIZONTAL SPINDLE 0 02 300 19 TOLERANCE BETWEEN HORIZONTAL SPINDLE CENTER AND ARBOR SUPPORT 0 02 300 0 03 400 20 PARALLELISM OF SPINDLE CENTERLINE WITH OVERARM SLIDE MOVEMENT OR OVERARM SLIDE WITH SADDLE MOVEMENT IN VERTICAL IN HORIZONTAL 0 02 300 0 02 300 ...

Страница 53: ... the close of each day work table shall be cleaned and the unfinished workpiece must be removed A little bit of lubricant is recommended 5 At the close of each day all setting levers shall be loosened and all aliding parts shall be moved to the proper position Then cutter must be dismantled 6 At the close of each day the headstock must be restored to its normal position if it tilted Monthly Mainte...

Страница 54: ...URING MACHINING 1 Overload makes the shear pin shear out 1 Check the overload cause and replace shear pin KNEE CAN T BE POWER ELEVATED 1 Knee is locked on column 2 Over weight of workpiece fixtures rtc max Load capacity 300kgs 3 Poor lubricating between knee and column 1 Release lock bolts 2 Use hand elevating CANNOT HOLD SIZE 1 Cutting load too great 2 May be due to chip packing 3 Chips causing m...

Страница 55: ...1 Decrease feed and increase speed 2 Resharpen 3 Increase surface speed 4 Use cutter with more closely spaced teeth WORK BURNISHING 1 Cut is too light 2 Insufficient peripheral relief 3 Land too wide 1 Increase depth of cut 2 Increase peripheral relief angle 3 Decrease width of land TEETH BREAKING Feed too high Decrease feed per teeth may be possible to maintain rate by increasing the number of te...

Страница 56: ...0 03 0 03 0 02 0 02 0 01 0 05 0 04 0 05 0 05 0 04 0 05 0 05 0 03 SLOTTING CUTTERS 0 07 0 05 0 07 0 06 0 06 0 07 0 06 0 06 0 06 0 06 0 05 0 05 0 03 0 07 0 06 0 07 0 07 0 06 0 1 0 07 0 06 FACE MILLING CUTTERS 0 25 0 15 0 25 0 2 0 15 0 2 0 15 0 15 0 15 0 15 0 1 0 1 0 08 0 25 0 2 0 25 0 25 0 2 0 25 0 2 0 15 PLAIN MILLING CUTTERS 0 2 0 1 0 2 0 15 0 1 0 15 0 1 0 1 0 1 0 1 0 08 0 08 0 05 0 2 0 15 0 2 0 2...

Страница 57: ...4 22 12 20 12 20 10 16 16 25 14 22 40 60 40 60 30 40 30 50 300 400 250 350 SLOTTING CUTTERS 14 20 10 16 16 24 16 24 15 20 16 22 14 20 14 20 12 18 12 18 11 18 11 18 10 15 14 20 12 18 30 50 30 50 30 50 30 50 300 400 200 250 FACE MILLING CUTTERS 16 22 12 17 18 28 18 28 17 23 18 25 16 23 16 23 14 20 14 20 12 20 12 20 11 17 16 25 14 20 40 60 40 60 40 50 40 50 300 400 250 350 PLAIN MILLING CUTTERS 14 20...

Страница 58: ...OPERATOR S MANUAL P 55 57 SPEED DIAGRAM Motor 50 Hz ...

Страница 59: ...started or operated by an authorized operator only 2 Immediate stop and repair are needed in case of troubles in operations 3 In installation the machine shall be connected to earth 4 In stop motion the feed lever shall be placed in the neutral position 5 The machine should be stopped during the inspection on the workpieces 6 In clamping check and ensure if the workpieces are firmly vised 7 The sp...

Страница 60: ...service life and safety operations it is highly advisable for the users to study the full details in this manual 2 Suggestions for improvements of the machine structure and or inquiries including plant visitations are cordially welcome 3 In case of maintenance servicing and parts changes please contact our sales agencies or business department directly 4 The manufacturer reserves the right to modi...

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