The contents of this brochure are reference only and are subject to
1〞 1〞
MT #2 MT #3
1/4 HP 1/4 HP
2300 lbs 3500 lbs
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FLOOR SPACER OD-618H/S
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Transportation:
The table and wheelhead are fixed with red pressed plate before transportation to avoid
any damage .It must to remove all these red plates before operate machine
The wires outside the electrical cabinet and control are covered in flexible conduit for
protect from any damage ,and there is oil in auto-lubrication system
Before lifting the machine ,prepare an adequate cable .Hook the cable unto the eye-bolts
fixed at base .Please take a note of the following items while lift machine.
1. The cable must be capable of lifting weight more than 2 tons.
2. Place wooden wedge or rags between cable & machine to prevent the machine from
damage.
3. Lifting cable must be strong enough with diameter over 10mm.
4. Table must be truly fastened to avoid any slip during movement
Machine Transportation & Installation
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Cleaning:
All sideways and ground surface are coated with anti-rust preventive before
delivery .Remove the coating with solvent agent prior to operation.
Installations:
While doing the installation ,special cares must be paid to the followings:
1. Never install the machine at an area where has direct sun light to maintain a
longer life ,preferable at an area has constant temperature.
2. Never install the machine at an area where is dusty ,not at an area next to
high-shocking machines ,such as ,air compressor ,press machine ,etc.
3. Machine is supplied with leveling and blocks as standard to facilitate and to avoid
any vibration.
Leveling:
It is essential to level the machine before operation . Please take a note of the following
items while leveling.
1. Prepare a level having the sensitivity of 0.02 mm/M( or 0.0002〞/ 10〞).
2. Clean the table surface before leveling .
3. Adjust the level as Figure indicates to place level.
4. After checking the table ,check torsion by traversing the table to left and right to
check if the table is distorted.
5. Check leveling which may be varied due to work load and others in 30 days after
installation .And check semiannually afterwards to retain grinding accuracy.
圖表 1
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Description of Machine
ILLUSTRATIONS OF MACHINE
1. WORKHEAD
2. TOP TABLE SLIDE
3. TABLE TRAVEL LIMIT DOG
4. REVERSE LIMIT SWITCH
5. BOTTOM TABLE SLIDE
6. AUTO/MANUAL OPERATING KNOB
7. TABLE HANDWHEEL
8. WHEELHEAD
9. TAILSTOCK
10. CONTROL PANEL
11. WHEELHEAD HANDWHEEL
12. ELECTRICAL CABINET
13. BASE
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ILLUSTRATIONS OF CONTROL PANEL FOR OD 618H/820H
1. POWER “ON” BUTTON
2. I.D./O.D. SELECTION SWITCH
3. WHEEL “ON” SWITCH.
4. WHEEL”OFF” SWITCH
5. COOLANT ON “MANU.” POSITION
6. COOLANT OFF
7. COOLANT ON “AUTO” POSITION
8. TABLE RIGHT SIDE MOVEMENT BUTTON
9. T ABLE AUTO MOVEMENT BUTTON
10. TABLE MANU. MOVEMENT BUTTON
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11. TABLE LEFT SIDE MOVEMENT BUTTON
12. EMERGENCY STOP SWITCH
13. WORKHEAD SWITCH “ON” POSITION
14. WORKHEAD SWITCH “OFF” POSITION
15. WORKLIGHT ON
16. WORKLIGHT OFF
17. WORKHEAD SPEED ADJUSTING KNOB
18. TABLE FEED RATE ADJUSTING KNOB
19. LED DISPLAY FOR WORKHEAD SPEED
20. LED DISPLAY FOR TABLE FEED RATE
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Electrical Power & Motors
Electrical equipment:
Rotation of motors:
Check the rotation of motors in details before operating the machine .
Wheelhead motor: The grinding wheel should rotate inward in the operator’s
Workhead motor: The tipped center should rotate inward in the operator’s
Coolant pump : Clockwise ( CW )
Table travel motor : Push up the button “TABLE AUTO MANUAL”,
then push the button “TABLE LEFT” or “TABLE
Note:
The rotation of motors are checked in the plant before delivery. In case any of the motors
run in opposite direction ,just switch any of the “R/S/T” cables in the electrical cabinet .
In case there are more than 2 motors run in opposite direction, a cable change from the
Individual motor connection is required.
Check the machine voltage with power source before connection. And check the
rotation of motors before operation.
direction.(Clockwise CW)
direction.(Clockwise CW)
RIGHT” .Check the table if move on the correct
direction.
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Lubrications System & Coolant System
Lubrication system :
Coolant system :
Recommended coolants :
material finish and wheel’s life .
There is an automatic lubrication supplied as standard for lubrication on all
slideways .The volume of the unit of 1 liter ( 2 liters for OD-820 Models)
The volume of coolant tank is of 72 liters . Just hook up the pipe to the coolant
nozzle before connecting power .
An appropriate coolant is essential for precision grinding ,and is resulted in the
A. Purpose of using coolant system.
a. Refrain material from temperature rise.
b. Flush off the grinding dust & peel-off grains.
c. Lubrication the material.
B. Category of coolant system.
a. Soluble coolant : Mainly with non-organic solution ,mostly suitable for
cast iron ,cast steel grindings .
1. Emulsion type
2. Soluble solution type
3. Solution type
b. Non-soluble coolant: A coolant with mineral oil in sulfuric
objects, suitable for lubrication.
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Table traverse and adjustment
The table can be driven both by manual and mechanical :
1. Manual traverse : Release the AUTO/MANUAL operating knob at the clutch
gear from the clutch unit. Swivel the handwheel to drive table manually.
2. Motorized auto drive : Adjust the table travel limit dogs to a desired
position. Tighten the AUTO/MANUAL operation knob at the table handwheel
to engage the clutch gear with the clutch unit .Push the “TABLE RIGHT” or
“TABLE LEFT” movement buttons to drive table automatically .The table’s
speed is variable that can be altered by Digital Variable Speed(DVS)System .
Adjustment of table inclination
The table consists of top & bottom slides in which the top slid is adjustable as foloows:
1. Release the two hex bolts at both table ends .
2. Pull up the knob .
3. Turn the adjusting knob in conjunction of the indicator to desired angle .
4. Tighten the two hex bolts at both table ends then begin grinding .
Table
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Workhead
Structure of workhead :
1. The workhead is furnished with 1/4 HP motor and is capable of variable speed that can be
altered by Digital Variable Speed ( DVS ) System.
2. Dead center and live center are available for supporting workpiece. Use a dead center for
external grinding. When using a 3-jaw chuck ,the spindle can be shift for a free rotation.
Adjustment of workhead :
1.Movement of workhead : Release the two fixed bolts at front of the unit to move the
workhead to desire position .Then clamp the two bolts .Clean the table surface before
moving is to be made .
2.Inclination of workhead: Release the two setting nuts at bottom of the unit to swivel the
workhead ±45° to an desire angle. Then clamp the nuts .
3.Alternation of dead center & live center: The spindle rotates when a chuck is used .Pull out
the plunger unit at back of the unit & press the clutch of driving plate into the groove of
spindle nose for free rotation. Star the procedures reversely while changing the live center to
dead center.
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5Ctype of workhead:
1. Clean inside of spindle nose and the collet .
2. Push in lock pin ( To engage lock pin ,turn spindle until pin lines up with the notch ) .
3. Disengage adjusting finger.
4. Place collet in the tube making sure the slot in the colet lines up with the pin in the spindle.
5. Apply light pressure to collet while turning “Shell Guard” making sure the threads
engage. Do not use force. If the collet does not go in smoothly, check for burs or damaged
threads.
6. Insert workpiece in the collet, move lever to the left or closed position and turn shell guard
toward the oprator until the collet seats.
7. Move lever to the right or released position and turn shell guard two notches toward the
oprator on the adjusting finger.
8. Move lever to the left or closed position and test the workpiece for correct tightness, if not
correct, make any adjustments needed and lock the adjusting finger .
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Tailstock
1. Move the tailstock in position according to workpiece length. Clean the table surface before
moving the tailstock to maintain accuracy.
2. Adjusting the tension of carbide tip center from the knob at rear of tailstock according to
workpiece length and forms. Turn the knob clockwise to increase tension whilst turn
counterclockwise to release. The workpiece may possibly be deflected or its center bore
expended in case the center tension is too great. To the contrary, workpiece would vibrate if
it is small.
3. Clean the center bore of workpiece and tailstock before clamping to ensure grinding
accuracy.
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Wheelhead
The wheelhead comprises of whellhead base ,rotary base ,saddle and saddle side, etc.That can
be driven both by manual and automatically and is inclinable for taper grinding.
Wheel spindle and bearings:
The wheelhead is the key part of the machine that adopts 4 pieces of precision angular contact
ball bearing providing a higher rigidity so as obtain a finer straightness and roundness.
Wheel spindle drive mechanism & adjustment
The wheel spindle is driven by a multiple V belt. A big tension may cause a poor surface finish
while a small tension cause vibration .Therefore it is imperative to keep an adequate belt tension
that can be adjusted through the bolts at back of motor.
Grinding Wheels
Selection of grinding wheels
A successful grinding is based on a qualified operator who knows well about the forms ,types and
property of grinding wheels and knows how to use them in different conditions .
Standard Marking System Chart
455x205x305 – WA – 80 – L - 5 - V – 2100
1. D x T
2. Abrasive symbol.
3. Grit size.
4. Grade.
5. S
6. Bond type.
7. Max. M/min (or M.P.M.)
1. 2. 3. 4. 5. 6. 7.
x H( mm ).
tructur
z D x T x H(mm)
The size of the grinding wheels .
z Abrasive:
Chemical composition of wheel grains used.
e.
:
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z Grit size:
Size of grain which will pass through a silk screen having that number of meshes to the
linear inch ( not square inch ) ,but will not pass through next smallest screen .Sizes smaller
than 220 are separated by hydraulic flotation and sedimentation or air classification .
zGrade:
Strength with which bond holds grains together ,or a measure of resistance which bond
exerts against a force tending to tear abrasive from wheel .It has nothing to do with abrasive
hardness as compared to a diamond .However ,a given wheel can be made to act relatively
harder or softer by varying work speed ,wheel speed ,depth of cut ,area of contact ,rate of
relative longitudinal movement of wheel and work .A given wheel and work .A given wheel
will act softer ( loses its grain readily ) if work speed (peripheral ) is increased or wheel
speed decreased .Decreasing area of contact makes a wheel act softer .Increasing infeed
( depth of cut ) or traverse rate will make a wheel act softer .The reverse of any of above will
make a given wheel act harder .
z Structure:
Is determined by porosity of wheel amount and size of air spaces between grains .( What
might be called swiss cheese effect where holes or pores are scientifically determined .) It is a
measure of closeness of adjacent grains ,or density .
z Bond type:
Material used for holding abrasive grains in wheel shape .Each grain is held in wheel by
coating of bond and joined to others by a network of bonding material .
z Max. M/min. ( or M.P.M. )
Max allowable M.P.M ( M/min ) .Keep the M.P.M. under the max M.P.M. can protect the
wheel from broken . ( R.P.M. = M.P.M. / πD )
Recommeneded Wheels for External Grindings
Parts Material
Wheel Specs
Wheel Outside Dia. ( ~ 355 mm )
Carbon Steel
Alloy Steel
Tool Steel
≦ HRC 25
> HRC 25
≦ HRC 55
> HRC 55
≦ HRC 60
> HRC 60
FA60MV
WA60MV
WA60LV
WA60KV
WA60KV
WA60JV
Stainless Steel WA60KV
Cast Iron C60JV
Special Cast Iron GC60IV
Chilled Cast Iron GC60IV
Malleable Cast Iron FA60MV
Brass C46JV ~ C36JV
Bronze 10A54LV ~ 10A36LV
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Aluminum Alloy C46JV ~ C36JV
Sintered Carbide GC80IV ~ GC60IV
Alnico WA46KV
Rubber C/GC 36 ~ 60 H ~ LV
Grinding Wheel :
1. Dimension of grinding wheel :
OD-618 S\H D x T x H = ∮12〞 x 1〞 x 3〞
OD-820 S\H D x T x H = ∮14〞 x 2〞 x 5〞
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圖表 2
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2. Assembly of grinding wheel:
a. Check the support surface, groove of wheel flange ,nut ,and screw holes for ant defects.
b. Put the flange into wheel bore slightly. The clearance between the wheel bore and flange
must be equal, namely, the wheel flange can not stay at one side
c. Screw up the flange cover with spanner.
d. After eight hours grinding service, screws should be checked for any looseness cause by
necessary to restore the original tension.
3. Installation of wheel:
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a. Clean the wheel bore and flange surface before mounting.
b. Put the assembled wheel onto spindle slightly .
c. Turn the nut C.C.W. to clamp the flange .
4. Extract of grinding wheel :
a. Remove the splash guard and open the wheel door .
b. Insert and turn wheel extractor C.W. to remove the wheel clamping nut .
c. Insert the wheel extractor into the wheel slightly .In no any condition ,it is strictly
prohibited to use a hammer or punch to take off the wheel forcibly .
Balance of Grinding Wheel :
1. Insert the flange into wheel tighten it .
2. Mount the wheel onto spindle switch on the spindle and dressing the wheel with
coolant .stop the coolant after dressing and let the wheel rotate for 10 minute or so to drop
the water off the wheel .
3. Dismantle the wheel set from spindle and put the balancing arbor thru flange bore ,and put
the wheel set on balance stand .Clean the flange bore and balance arbor tapered surface
before mounting .
4. Set the wheel for free rotation to locate its gravity center “S” and mark it with a chalk .
5. Put a balance weight at “S” position .Turn the wheel for 90 degree see in which side (S&G)
weight more .
6. Place 2 balance weight “K” at weightier side with same distance from “G” .
7. Turn the wheel for 90 degree see if the wheel is balanced .If not ,move the balance weight
“K” till the wheel is balance no matter in which position the wheel rotates .
Dressing of Grinding Wheel:
Installation of diamond dresser:
Put the diamond bit into the seat, front the tailstock body ,and tighten it .
Notes for wheel dressing;
a. A sufficient coolant is required whiled dressing the wheel .In the even of insufficient
coolant, the diamond bit will become carbonized due to high heat generated because
of friction. In this case, the life of diamond bit will be shortened and deteriorated if
keep using.
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b. The feed rate for each dressing should not be large as the diamond is an element of
hard and crispy, and is unbearable of impact .In order to prevent the diamond bit
from impact against grinding wheel, start the dressing from the middle of wheel
thru both ends.
c. A fixed moderate dressing rate: less than 5μm (0.0002) for a period of time and
cause a poor at times to regain a good and sharp dressing angle.
Check the machine accuracy as below in maintenance .
1. Alignment of table :
a. Place a dial gage on top of table and against dovetail surface of the upper table .
b. Turn the table handwheel to check if the zero-setting is obtained .
c. If not, adjustment can be made in reference of procedures as stated in Page 10 .
2. Alignment of workhead and tailstock :
a. Place a dial gage on top of table and a test bar into the spindle bore.
b. Direct the stylus to the test bar.
c. Turn the table handwheel to check if the zero-setting is obtained .
d. If not, adjust it in reference of procedures as stated in Page. 12 (adjustment of
workhead inclination) .
e. Test grind a bar of 300 mm long and measure the diameter at both ends see if it has the
same diameter. If not, realign the table.
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Safety Rule of Grinding Wheels
1. Carefully store grinding wheels in proper condition ,i.e. away from heat and humidity
sources .
2. Select correct wheel in accordance with grinding requirements.”Ring “ wheel and inspect
for cracks. Never use cracked wheel.
3. Strictly prohibit exceeding maximum safe operation speed established for wheel .
4. Use clean recessed matching flanges at least 1/3 wheel diameter .
5. Never alter hole in wheel or force wheel on spindle .
6. Wheel newly mounted or rarely used must run idle for at least 3 minutes before starting to
grind .
7. Under grinding ,carefully protect eyes and organ of breath .
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Electric Diagram
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OD-820H\S
PARTS LIST
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R
W
KEYPART NUMBERDESCRIPTIONQUANTITY
1 GOD-61510WHEELHEAD MOTOR COVE
2 EM03754PWHEELHEAD MOTOR 1
3 GOD-65280MOTOR UPPER BASER1
4 GOD-65220MOTOR LOWER BASE1
5 GOD-65210SIDE COVER1
6 SHS05012SOCKET HEAD SCREW2
7 GOD-65110DRIVING PLATE1
8 SHS-06012SOCKET HEAD SCREW1
9 GOD-65120LOCATING PIN1
10 SS05010SET SCREW2
11 SHS10016SOCKET HEAD SCREW2
12 GOD-65250SLIDE FIXED BLOCK2
13 GOD-61120SLIDE BLOCK BASE1
14 RHS-04016REDIOUS HEAD SCREW2
15 GOD-65350ANGLE INDICATOR1
16 RHS04006REDIUS HEAD SCREW2
17 GOD-65330PLATE1
18 GOD-67310PULLY SIDE COVER BASE1
19 GOD-67320COVER1
20 GOD-65160HNOB1
21 GOD-65322MOTOR PULLY1
22BELT1
23 DRK04020KEY4
24 SS05006SET SCREW1
25 GOD-65230TAPER PLATE1
26 SHS06014SOCKET HEAD SCREW1
27 HHS05016H EX HEAD SC RE
28 SHS06016SOCKET HEAD SCREW4
1 GOD62130LOC K ED N U T1
2 GOD62140ASP ACER1
3 GOD61900S PIND LE P U LLEY1
4 GOD62060INNER LO C KED N U T1
5 GOD62050OU TE R LO C KED N U T1
6 GOD62030REAR BEARING COVER1
7 GOD62040SP ACER1
8 BB7011CP4ULBALL BEARING4
9 GOD62021SPINDLE SLEEVE1
10 GOD62011S PINDLE1
11 GOD62040S PACE R1
12 GOD62070S PACE R1
13 GOD62040S PACE R1
14 GOD62080FR O N T C O VER1
15 SHS08020SO CK ET H EA D S C R EW6
16
17 GOD62090F RO NT LOCKED N U T1
18 GOD62160WHEEL COVER BODY1
19 GOD62100WHE E L FLAN G E1
20 GOD62110 FLANGE COVER1
21 GOD62150BALANCE BLOCK3
22 BB03BBALL3
23 GOD62120N UT1
24 GOD62140S PACE R1
25 GOD6222NLOCKED N U T1
26 GOD62180C OVE R1
27 GOD62170SWIVEL CO VE
1 SHS08020SO C KET H E AD SC R E W8
2 GOD61110WHEEL B O DY C O VE R1
3 GOD6108SWHEEL HEADSTOCK1
4 IM024P2HP4P MOTOR1
5 GLS1880SUPPO R T BLOC K1
6 GOD61140MOTOR SUPPOR T PLATE1
7 SHS08035SC O KET H E AD SC R E W4
8 GOD61100SUPPORT BLOCK BASE1
9 SHS06045SO C KET H E AD SC R E W2
10 GOD68330P LATE1
11 GOD68340PROTECT RUBBER1
12 SHS06012REDIUS HEAD SCREW2
13 GOD61420R EA R C O VER1
14
15 SS06012SET SCR EW3
16 GOD61910M O TO R P U LLEY1
17 SRK08025SINGLE REDIUS HEAD KEY1
18 VBV TYLE B ELT2
19 GOD61860M O U N TING BO LT2
20 GOD61850M R TO R P U LLY C O VE R1
21 GOD63080BEARING BASE2
22 SHS06020SCO K ET H EA D S C R EW4
23 GOD68240S TO P B LO CK1
24 GOD68250ACTIVE STOP BLOCK1
25 GOD65350INDICATOR PLATE1
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27 GOD6108SWHEEL HEADSTOCK1
28 GOD61090WHEEL HEADSTOCK BASE1
29 GOD61490SUPPORT PLATE1
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圖表 2
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46
KEYPART NUMBERDESCRIPTIONQUANTITY
1 SHS06020SO C KET H E AD SC R E W2
2 GOD64130BEARING SUPPORT1
3 NBNA5904NEDDLE BEARING 2537231
4 GOD64050C LUTC H G EA R1
5 GOD6405038T CLU TC H G EAR1
6 SP05040PIN1
7 GOD64070LOC K ED N U T1
8
9 GOD64080CLUTCH ROD1
10 SS08080SET SCR EW1
11 GOD6410053& 19T G E AR1
12 NBF2016NEDDLE BEARING F2020163
13 SHS10100SO CK ET H EA D S C R EW1
14 GOD64090SLEEVE1
15 GOD6411053T16T R AC K G EAR1
16 GOD64140GEAR BASE1
17 GOD64120G EAR S H A FT1
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19 SHS06020SO CK ET H EA D S C R EW2
20
21 FR80M10KNO B1
22 GOD64030SLEFT SIDE HAN D WHEE L1
23 GOD64020N UT1
24 SRD06020SINGLE REDIUS KEY1
25 GOD64010LO C KED NUT1
26 GOD64020LO C KED NUT
27 GOD6108SWHEEL HEADSTOCK1
28 GOD61090WHEEL HEADSTOCK BASE1
29 GOD61490SUPPORT PLATE1
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圖表 3
5
KEYPART NUMBERDESCRIPTIONQUANTITY
1 GOD6314076T G EA R1
2 TLK3001822CLAM P ING R ING1pr.
3 WS010FLAT WASHER1
4 SHS10016SO C KET H E AD SC R E W1
5 GOD6312019T PINION G EAR1
6 DRK05030DOUBLE REDIUS KEY1
7 GOD63250BU SH1
8 GOD63110GE AR SH A FT1
9 BB6005ZZBALL BEARING4
10 GOD63080BEARING HOUSE2
11 SHS08016SOCKET HEAD S C RE W8
12 SDR05020SINGEL REDIUS KEY4
13 GOD63090CONN EC TION BU SH2
14 GOD63100M IDDLE SHAFT1
15 SS06006SET SCR EW4
16 CP04CUPPER PLUG4
17 GOD63070WHEEL SHAFT1
18 SHS08025SOCKET HEAD S C RE W1
19 GOD63410LO C KED ROD1
20 GOD63400STO PPE R1
21 HN08NNILON NUT1
22 GOD63420HANDLE STUD1
23 GOD63430S TO P ROD1
24 GOD63450N UT2
25 SS05006SET SCR EW2
26 GOD63460HA N D LE SH AF T1
27 FR02
BLACK COLOR KNOB1
28 GCTSCREW1
29 GOD63040WHEEL BASE1
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31 GOD63020WHE EL1
32 GOD63010N UT1
33 GOD63440B OLT1