Sharp LMV Series Application guide
Wiring for Dual Voltage Motors:
WARNING: Disconnect all power source before changing any wires.
1. Most spindle motors are interchangeable between 220V and 440V. To change
wiring, follow the instructions below.
2. After disconnecting the power, remove cover on the motor. The diagram below
should appear on the inside. If in doubt about the electrical wiring, please consult a
qualified electrician or Sharp Industries, Inc. for advice.
3. After making the connections as illustrated below, check that all connections are
tight and properly isolated, then replace cover and apply power.
TWIN COOLING FAN WIRING DIAGRAM
1. Warning: Disconnect power source before starting
installation.
2. Caution: Follow wiring instruction carefully.
3. For trouble shooting, use a meter to check the current. Do
not use the 440V current to check the fan individually.
4. This method of connecting the fans in series to run on 440V
current is only applicable to the Twin Fan model. Do not
use it on the Single Fan model.
CONTENTS
Forward.................................................................................................................1
Safety Rules and Regulations..............................................................................1
MODEL LMV VERTICAL VARIABLE SPEED MILL.........................................2
Specifications ..........................................................................................................2
Uses.........................................................................................................................2
Machine Parts.........................................................................................................3
Headstock Cooling System......................................................................................7
Lubrication.............................................................................................................8
Operation Instructions:
Headstock .............................................................................................................10
Mill Body ..............................................................................................................15
Unpacking, Moving, and Floor Space....................................................................17
Alignment .............................................................................................................21
Trouble Shooting ..................................................................................................22
Maintenance .........................................................................................................37
Feedrate Cutting Speeds .......................................................................................38
Remarks................................................................................................................39
1
1. Forward:
SHARP LMV milling machines are designed and manufactured to meet
the demands of our customers. All parts and materials have been placed
under strict quality control to ensure the superior quality and durability.
This manual gives a detailed account of the structure, mechanism, and
methods of operation and maintenance of the LMV mill. To ensure the
maximum performance and precision operation, it is imperative that
operators, maintenance and repair personnel read the manual thoroughly
and follow the specific instructions in operating and maintaining the
machine.
2. Safety Rules and Regulations:
1. Do not wear loose clothing when operating the machine.
2. Operators shall wear goggles and safety boots.
3. Do not disturb the operator when the machine is running.
4. Caution should be taken when removing chips from work surface.
3. Notice:
Retrofitting the Sharp Mill with a CNC control, such as Sony, AcuTire,
Anilam or other similar controls without the installation of an approved
auto-lube system will void the warranty on that machine.
2
SHARP VARIABLE SPEED MILLING MACHINE
1. Specifications:
STANDARD
SPECIFICATION
INCH
MM
SPECIFICATION
INCH
MM
WORK TABLE
Spindle speed
RPM
50HZ
60HZ
50-3750 rpm
60-4500 rpm
Working area of table
42 x 9
Machine Net Weight
1.01 kg
Table Travel
30
Saddle Travel
12
Knee Travel
16
HEAD
Motor
2HP 3HP
Spindle Taper
R8 or N.S.T # 30
Quill Travel
5
127
Feed Rate per
Revolution
0.0015, 0.003,
0.006
0.04, 0.08,
0.15
OPTIONAL
Working Area of Table
49 x 9
1225 x 230 Table Travel (Head)
36%
933
2. Machine uses:
1. Drilling
2. Milling
3. Molding
4. Polishing
5. Boring
3
3. Machine parts:
1. Headstock:
Power Feed Engagement Crank (I)
High/Low Lever (J)
Quill Feed
Lever (H)
Micrometer
Adjustment
Nut (K)
Quill Lock
(L)
Feed Control Lever (F)
Feed
Handwheel
(E)
Feed
Reverse
Knob (D)
Quill Feed
Selector (C)
Brake
Speed
Selector (G)
4
DVS HEAD
Emergency Stop
Forward/Reverse Switch
Brake
Speed Meter
Speed Knob
5
2. Machine Body:
1. Columns, Turret, and Ram:
Adaptor Lock Bolts (B)
Vertical Adjusting Worm
Ram Lock
Ram (F)
Gib Bolt (I)
Column
Turret (D)
Figure 4
6
2. Tables, Saddle, and Knee:
Figure 5
Ball Crank Handle (I)
Knee Lock Lever (G)
Knee (L)
Saddle Lock
Lever (D)
Ball Crank Handle (K)
Vertical Travel Stop (A)
Work Table (H)
Table Stop (B)
Work Table Lock (J)
Saddle (C)
Knee Elevating Lever (F)
7
4. Headstock Cooling System:
The variable speed headstock is equipped with a unique cooling
system. Two fans have been installed outside of the cover between
the front and rear speed change wheels. The purpose of the fans
are to dissipate the heat build up between the belt and the speed
change wheel, and prolong the life of the mill.
Figure 6
8
5. Lubrication:
1. Head:
Position
Type
Lubricant
Frequency
Function
1.
Grease
Shell Tonna 32
One Shot Every
3 Months
Motor Shaft
2.
Grease
Shell Tonna 32
As Needed **
Bull Gear
3.
Oil Cup
Shell Tonna 32
Twice a Week
Bull Gear
Bearing Shaft
4.
Oil Cup
Shell Tonna 32
Daily
Worm Gear
Cradle
5.
Oil Cup
Shell Tonna 32
Twice a Day
Quill
9
2. Table, Saddle, and Knee
Position
The ways, saddle, knee and leadscrews are oiled by means of
a manually operated pump, located on the back side of knee.
Frequency
2 pumps 3 to 5 times daily
Lubricant
Shell Tonna 33
Figure 8
10
6. Operation:
1. Headstock:
a. Power to the motor is controlled by a three way switch, forward,
reverse, and off (Fig. 9). When the high-low speed change lever (Fig.
3 (J), Page 3) is in high gear position and the switch is in FOR., the
spindle rotation is clockwise. When the switch is in REV., the rotation
is counter clockwise.
b. Spindle Brake:
To prevent damage and prolong the life of the brake, the power must
be off and the spindle must be below 200 RPM before engaging brake.
The brake can be engaged by pushing or pulling the brake lever (Fig.
10). Pulling the brake lever up after it is engaged can lock the brake.
Caution: Be sure the brake is in neutral before starting the spindle.
c. Installation of Collet:
1. Raise the spindle all the way up.
2. Insert collet, being sure the keyway lines up with the pin
in the spindle.
3. To tighten, turn the drawbar clockwise while brake is
engaged. To remove collet, loosen the drawbar (counter
clockwise) three to five turns and tap the drawbar with a soft
mallet to break the collet loose from the taper.
NOTE: When the mill is fitted with the R8 spindle, care must be taken that the collet keyway
is aligned with the pin in the spindle (Fig. 36, page 35).
Figure 9
Figure 10
Brake Setting
Brake
Brake
11
d. Manual Feed:
The manual feed lever is located on the right side of the headstock
(Fig. 3 (H), Page 3). This lever controls the vertical movement of the
spindle. For the operator’s convenience the lever can be adjusted as
needed.
Note: in manual feed, the feed control handle “F” (Fig. 11) must be in
the “F1” position.
e. Manual Micro-feed:
To use the manual micro-feed, the power-feed transmission lever (J)
(Fig. 11) must be placed at the “OUT” position, and the feed reverse
knob (D) (Fig. 11) must be in the neutral position. To engage the
overload clutch, lever “F” (Fig. 11) must be moved to the “F2” (Fig.
11). You can now turn handwheel “E” clockwise to lower the spindle,
counter clockwise to raise it.
Figure 11
12
f. Automatic feed:
Procedure for using this function is:
a. Loosen the quill lock “L” (Fig. 3, Page 3)
b. Place the power feed transmission lever “I” (Fig. 3,
page 3) in the “IN” position.
c. Place feed speed lever “C” (Fig. 3, Page 3) in the
desired position. (H, L, or M).
d. To engage the overload clutch, place feed control lever
“F” to the “F2” position (Fig. 12).
e. The quill will move down when pressing knob “D” (Fig.
11) in, and pulling it out, the quill will go up (The
middle is neutral).
f. The working depth can be set by the use of micrometer
adjustment nut “K” (Fig. 12). This adjusting nut is
graduated in 0.001 and 0.02 mm increments. To activate
the auto feed, pull the feed control lever “F” out. It will
disengage when the adjusting nut contacts the quill stop
block “I” (Fig. 12). For manual trip, you can push the
feed control lever in manually.
Note:
1. Maximum drilling capacity for automatic feed is 3/8” or 10
mm.
2. The power feed transmission lever “I” (Fig. 3, Page 3) should
be in the “OUT” position when the power feed is not being
used. To avoid damage to the gears, do not engage the power
feed when the spindle is running.
Figure 12
Quill Stop Block (I)
Micrometer Adjustment Nut (K)
(F)
F1
(N)
(M)
13
g. Spindle speed change:
The speed of spindle is controlled by a set of sliding belt
pulleys and a counter shaft gear. There are two
options (High and low). High gear is for RPM from 500
to 3,000 and low gear for RPM from 60 and 580. When
high-low lever “J” (Fig. 13) is in the forward position it
is in high gear, when facing back it is in low gear.
Note: To change from high to low:
a. The spindle must be stopped.
b. Moving the spindle slightly by hand when
shifting from high to low makes it easier for the
gears to engage. You will feel a click when it
engages.
c. The direction of the spindle is reversed when in
low gear. This can be overcome by the use of
“FOR” “REV” switch.
h. Speed change handwheel:
a. Do not change speed when spindle is stopped.
b. Do not run spindle in excess of 3,000 RPM.
c. Slow speed changes are advised, to prevent premature wear
on the belt, pulley, and other internal parts.
Figure 13
G
J
14
i. Tilting the headstock (Fig. 14):
To tilt the head up or down, evenly loosen the three
adapter locking bolts (P) and move to desired angle
using adjusting worm shaft “Q”. Re-tighten the adapter
bolts. NOTE: do not remove adapter bolts.
Cross tilting the headstock (Fig. 15):
Evenly loosen the four lock nuts “R”. Using the worm
shaft “S” move head to desired angle and retighten lock
nuts.
Figure 14 &15
(S)
(Q)
(P)
(R)
15
2. Machine Body Operation:
1. Ram movement (Fig. 17):
a. To move ram in or out, loosen Ram lock levers “A” and
move to desired position using handle “B” and retighten
levers.
b. To swivel ram, loosen the four bolts “C”, move to
desired position and retighten bolts “C”.
Figure 17
(A)
(B)
(C)
16
2. Setting handwheel dials to zero (Fig. 18):
a. Loosen lock ring “D”.
b. Turn dial “E” to zero and tighten lock ring “D”.
3. Locking the table, saddle, and knee:
To increase the stability of the mill and maintain a good
workpiece finish, all non-feeding surfaces should be
locked down. See Fig. 19 for location of locking levers.
Figure 18
Figure 19
Saddle Lock
Lever
Work Table Lock
Lever
Knee Lock Lever
(E)
(D)
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