LNS QUICK LOAD SERVO S2 Installation and operation manual

ENG
MADEINUSA

START UP MANUAL 1
QUICK LOAD SERVO S2
E-3
TABLE OF CONTENTS
1. STARTING THE BAR FEED SYSTEM 3
1.1 Description 3
2. SETTINGS RELATED TO INSTALLATION 4
2.1 End of bar position 4-5
2.2 Top-cut position 6-7
3. SETTINGS RELATED TO BAR STOCK AND MACHINED PARTS 7
3.1 Example 1: Set-up for round bars 7-8
3.2 Example 2: Set-up for hexagonal bars 8
3.3 Example 3: Set-up for square bars 9
3.4 Example 4: Set-up for "other" bars 10
4. MECHANICAL SETTINGS AND OPTIONAL ACCESSORIES 11
4.1 Replacement of the feeding pusher 11-13
4.2 Calibration of the loading table 14
4.3 Slope of the magazine table 15
4.4 Loading fingers up 15-16
5. PUTTING THE LATHE INTO OPERATION 17
5.1 Spindle reduction tubes 17
5.2 Shaped bars (hex and square) 18

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1. STARTING THE BAR FEED SYSTEM
Please read the safety measures explained at the beginning of the Instruction
manual before handling the following equipment.
1.1 Description
All handling, optional accessories and settings required by the bar feed system to carry out
a specific job are part of the set-up.
A few simple operations are necessary to prepare the device to handle another range of
diameters.
The set-up procedures have been divided into 4 categories:
Settings related to installation :
CEnd of bar position
CTop-cut position
Settings related to bar stock and machined parts :
CExample 1: Set-up for round bars
CExample 2: Set-up for hexagonal bars
CExample 3: Set-up for square bars
CExample 4: Set-up for "other" bars
Mechanical settings and optional accessories :
CReplacement of the feeding pusher
CSlope of the magazine table
CSettings of the loading fingers
CSettings of the loading table
Lathe set-up :
CSpindle reduction tubes
COptional accessories for profiled bars
The procedures to be followed are explained in this chapter and will be presented as concrete
examples, whenever possible.

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Note :
To memorize
a new
parameter or
new value,
keep
[ENTER]
pressed until
the icone
disappear.
2. SETTINGS RELATED TO INSTALLATION
2.1 End of bar
The end of bar position determines the moment when the bar feed enters the loading
cycle.
Usually, the end of bar position is
adjusted as closely as possible behind
the clamping system of the lathe
(approximately 5 mm or a 1/4" behind
the chuck jaws or collet pads).
This will provide minimum bar stock
remnant.
Regardless of the length of the bars, or
parts, the end of bar position is always
the same.
In very special cases, a different end
of bar setting needs to be selected.
The length of the remnant may vary :
CThe minimum remnant length
(Min) is obtained when the feeding
pusher is just behind the clamping
device while the last part is being
machined.
CThe maximum remnant length
(Max) is obtained when there is not
enough material for machining an
additional part (Lp - 1 mm).
Maximum remnant length =
Lp - 1 mm + Min
End of bar setting :
Important : Before handling the barfeeder, stop the lathe at the end of part cycle.
1. Press the key [STOP].
2. Press the key [MENU].
The display reads :
MAIN MENU

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3. Press the numeric key [3] (Position/Torque).
The display reads :
END OF BAR POSITION
****MM
4. Press the key attributed to the icon [SET].
Depending on which sequence the bar feed is in when the parameter is selected, the
available functions and icons can change :
Functions
Conditions
By offset correction By teaching
- Loading channel down
- No bar stock in the loading channel Icon : [+/-] Icon : [TEACH IN]
[+/-] By offset correction
CPress the key attributed to the icon [+/-].
The display reads the current end of bar position.
CEnter the correction value with the numerical keys. Then, press the key
attributed to the icon [+] to add the value, or the key [-] to substract it. The
display reads the new end of bar position.
CTo exit the end of bar set mode, press the key attributed to the icon [ESC].
[TEACH IN] By teaching
CPress the key attributed to the icon [TEACH IN].
The display reads the current end of bar position
CPress the key [FWD] and advance the pusher to the desired position (see
previous page).
CTo validate the new end of bar position, keep [ENTER] pressed until the icon
disappears.
5. To exit the set mode, press the keys [MENU] or [STOP].
Note: If only the OFFSET function is needed, this can be accomplished by pressing [1] in
sequence 3 above, then pressing the key attributed to the icon [PAGE DOWN] until the
parameter is displayed. The "Teach In" function is not available in this menu.

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2.2 Top-cut position
During the loading cycle, the bar is
automatically loaded and positioned
into the spindle, outside the clamping
device of the lathe (chuck or actuator).
This positioning corresponds to a
value (Z) programmed by the
operator, which is equal to the
distance between the measuring cell
and the position of the material in the
lathe clamping device.
With this system, the setting is the same for any bar length.
Top cut position setting :
Important : Before handling the barfeeder, stop the lathe at the end of part
cycle.
1. Press the key [STOP].
2. Press the key [MENU].
The display reads :
MAIN MENU
3. Press twice the key attributed to the icon [PAGE DOWN].
The display reads :
END OF BAR POSITION
****MM
4. Press the key [PAGE DOWN].
The display reads :
POSITION OF THE CUT OFF
(TOP CUT) **** MM
5. Press the key attributed to the [SET].
Depending on which sequence the bar feed is in when the parameter is selected,
the available functions and icons can change:

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Functions
Conditions
By offset correction By teaching
- Loading channel down
- No bar stock in the loading channel Icon : [+/-] Icon : [TEACH IN]
[+/-] By offset correction
CPress the key attributed to the icon [+/-].
The display reads the current top cut position.
CEnter the correction value with the numerical keys. Then, press the key
attributed to the icon [+] to add the value, or the key [-] to substract it. The
display reads the new top cut position.
CTo exit the top cut set mode, press the key attributed to the icon [ESC].
[TEACH IN] By teaching
CPress the key attributed to the icon [TEACH IN].
CPress the key attributed to the icon [START].
The loading channel raises and loads a bar as it passes by. The feeding pusher
inserts the bar into the lathe spindle. The feeding pusher returns to its reference
position. The loading channel goes down. The feeding pusher is now facing the
spindle.
CPress the key [FWD] and advance the bar stock to the desired position (see
previous page).
CTo validate the new top cut position, keep [ENTER] pressed until the icon
disappears.
6. To exit the set mode, press the keys [MENU] or [STOP].
Note: If only the OFFSET function is needed, this can be accomplished by pressing [1] in
sequence 3 above, then pressing the key attributed to the icon [PAGE DOWN] until the
parameter is displayed. The "Teach In" function is not available in this menu.

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Note :
For more
information
concerning
the
parameters,
see Chapter 7,
point 5.
Note :
If the previous
profile was
"Other", a text
indicating that
the loading
table needs to
be adjusted
manually will
be displayed.
See point 4.2.
3. SETTINGS RELATED TO BAR STOCK AND MACHINED PARTS
3.1 Example 1: Start-up for round bars
Specifications
Bar profile Round
Bar diameter 20.0 mm
Length of pieces to be machined 55.0 mm
Thickness of the cutoff tool 2.0 mm
a) Set-up of parameters :
Conditions: The loading table is in low position
2 bars of the new diameter are on the loading table
Bar feeder in STOP mode
Press the [MENU] key; the remote station displays the following text :
MAIN MENU
Press the numeric key [1] (Part Setup); the displays reads:
LOADING OF : 1. ROUND MATERIAL
2. HEXAGONAL
3. SQUARE
4. OTHERS
On the keypad, select [1] Round
Press the [ENTER] key twice; the remote station displays the following text:
NEW BAR STOCK DIAMETER
On the keypad enter [200]
Press the [ENTER] key twice; the motor (M2) engages and sets the loading table and the
loading fingers of the bar magazine. The remote command displays the following text :
INPUT OVERALL PART LENGTH
On the keypad, enter [570], which represents the sum of the bar length and the thickness
of the cut-off tool.
Press the [ENTER] key twice to store the data. Press the [ESC] key to exit the set-up
functions.
b) Mechanical settings :
CInstall the 12 mm diameter pusher; see point 4.1
CIf the stock is tubing, install the special adapter; see point 4.1.2
CCheck that the table and the loading fingers are in the "Round bars" position; see
points 4.3 and 4.4

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Note :
For more
information
concerning
the
parameters,
see Chapter 7,
point 5.
Note :
If the previous
profile was
"Other", a text
indicating that
the loading
table needs to
be adjusted
manually will
be displayed.
See point 4.2.
3.2 Example 2: Start-up for hexagonal bars
Specifications
Bar profile Hexagonal
Bar diameter 65.0 mm
Length of pieces to be machined 37.0 mm
Thickness of the cutoff tool 2.0 mm
a) Set-up of parameters :
Conditions: The loading table is in low position
2 bars of the new diameter are on the loading table
Bar feeder in STOP mode
Press the [MENU] key; the remote station displays the following text :
MAIN MENU
Press the numeric key [1] (Part Setup); the display reads:
LOADING OF : 1. ROUND MATERIAL
2. HEXAGONAL
3. SQUARE
4. OTHERS
On the keypad, select [2] Hexagonal
Press the [ENTER] key twice; the remote station displays the following text:
NEW BAR STOCK DIAMETER
On the keypad enter [650]
Press the [ENTER] key twice; the motor (M2) engages and sets the loading table and the
loading fingers of the bar magazine. The remote command displays the following text :
INPUT OVERALL PART LENGTH
On the keypad, enter [390], which represents the sum of the bar length and the thickness
of the cut-off tool.
Press the [ENTER] key twice to store the data. Press the [ESC] key to exit the set-up
functions.
b) Mechanical settings :
CInstall the 25 mm diameter pusher; see point 4.1
CIf the stock is tubing, install the special adapter; see point 4.1.2
CCheck that the table and the loading fingers are in the "Profiled bars" position; see
points 4.3 and 4.4
CRefer to Set-up for profiled bars; see point 5.2.

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QUICK LOAD SERVO S2
Note :
For more
information
concerning
the
parameters,
see Chapter 7,
point 5.
Note :
If the previous
profile was
"Other", a text
indicating that
the loading
table needs to
be adjusted
manually will
be displayed.
See point 4.2.
3.3 Example 3 : Start-up for square bars
Specifications
Bar profile Square
Bar diameter 40.0 mm across the flats
Length of pieces to be machined 58.0 mm
Thickness of the cutoff tool 2.0 mm
a) Set-up of parameters :
Conditions: The loading table is in low position
2 bars of the new diameter are on the loading table
Bar feeder in STOP mode
Press the [MENU]key; the remote station displays the following text :
MAIN MENU
Press the numeric key [1] (Part Setup); the remote station displays the following text :
LOADING OF : 1. ROUND MATERIAL
2. HEXAGONAL
3. SQUARE
4. OTHERS
On the keypad, select [3] Square
Press the [ENTER] key twice; the remote station displays the following text:
NEW BAR STOCK DIAMETER
On the keypad enter [400]
Press the [ENTER] key twice; the motor (M2) engages and sets the loading table and the
loading fingers of the bar magazine. The remote command displays the following text :
INPUT OVERALL PART LENGTH
On the keypad, enter [600], which represents the sum of the bar length and the thickness
of the cut-off tool.
Press the [ENTER] key twice to store the data. Press the [ESC] key to exit the set-up
functions.
b) Mechanical settings :
CInstall the 25 mm diameter pusher; see point 4.1
CIf the stock is tubing, install the special adapter; see point 4.1.2
CCheck that the table and the loading fingers are in the "Profiled bars" position; see
points 4.3 and 4.4
CInstall the optional accessories for square bars (See Instruction manual,
Appendices / Options for Quick Load Servo S2)
CRefer to Set-up for profiled bars; see point 5.2.

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Note :
For more
information
concerning
the
parameters,
see Chapter 7,
point 5.
3.4 Example 4 : Start-up for bars of special profile
Specifications
Bar profile Other than round, hexagonal or square
Bar diameter Cannot be defined (Special profile)
Length of pieces to be machined 23.0 mm
Thickness of the cutoff tool 2.0 mm
a) Set-up of parameters :
Conditions: The loading table is in low position
2 bars of the new diameter are on the loading table
Bar feeder in STOP mode
Press the [MENU] key; the remote station displays the following text :
MAIN MENU
Press the numeric key [1] (Part Setup); the display reads:
LOADING OF : 1. ROUND MATERIAL
2. HEXAGONAL
3. SQUARE
4. OTHERS
On the keypad, select [4] Other
Press the [ENTER] key twice.
Unlike other profiles, when "Others" is entered, no diameter needs to be entered.
The remote station displays the following text :
INPUT OVERALL PART LENGTH
On the keypad, enter [25], which represents the sum of the bar length and the thickness of
the cut-off tool.
Press the [ENTER]key twice to store the data. Press the [ESC] key to exit the set-up
functions.
A text is displayed, indicating that the loading table will have to be adjusted in manual
mode. Follow the instructions of point 4.2 to calibrate the loading table manually.
b) Mechanical settings :
CInstall the correct pusher adapted to the profile of the stock; see point 4.1
CIf the stock is tubing, install the special adapter; see point 4.1.2
CCheck that the table and the loading fingers are in the "Profiled bars" position; see
points 4.3 and 4.4
CRefer to Set-up for profiled bars; see point 5.2.

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4. MECHANICAL SETTINGS AND OPTIONAL ACCESSORIES
4.1 Feeding pusher
Three feeding pushers are necessary to cover the entire range of the Quick Load Servo S2
bar feed system. Each pusher has a range of operation :
Pusher diameter Ordering Nr Diameter Range
**6,35 mm (1/4") *021.011.022 / 6 6 mm - 12 mm (1/4" - 1/2")
12 mm (1/2") *021.011.022 / 12 8 mm - 32 mm (>1/3" - 1 1/4")
25 mm (1") *021.011.022 / 25 33 mm - 120 mm (>1 1/4" - 4,7")
* This ordering number corresponds to the complete pusher, with all of the elements
indicated below. When a feeding pusher is ordered for the first time, use this
number.
** 2 extra roller supports, intended to bolster the support of the bars of small
diameter, are furnished with the 6.35 mm diameter pushers. Their placement on
the loading table will be determined by the length of the bars to be loaded.
Replacement :
Bring the loading channel into working
mode position (down position), then place
the bar feed system into the STOP mode
(remote station).
1. Loosen the fastening screws (A)
sufficiently to free the groove (C) that
holds the pusher (B) in the connecting
piece (D).
2. Slide the pusher forward by
making into the guide bushing (E).
3. When the rear of the pusher is sufficiently
loosened to be able to remove it, pull the
guide bushing (E) toward the back to
dislodge it.
4. The pusher is now free and can be
removed.
• Place the new pusher into the
opening, and insert the guide
bushing.
• Introduce the rear of the pusher
into the connection piece and push
to a stop.
• Tighten the fastening screws so
that they lodge into the groove of
the pusher.
• Check to see the mechanical stop sleeve is properly positioned (see next section)

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4.1.1 Mechanical stop
The feeding pusher of the Quick Load Servo bar feed system has a set length, which was
determined so that it can function with all types of lathes.
To make sure that they never collide with the clamping device (end of bar improperly
adjusted, or in manual mode, for example), the feeding pusher of the Quick Load Servo
comes with a mechanical safety stop.
When the mechanical stop (stop sleeve) comes into contact with the guide bushing, the
feeding pusher is immediately stopped.
Procedure :
• Bring the loading channel into
work position (down position).
• Open the main access cover.
• Undo the set screws (A) of the
stop sleeve.
• Close the main access cover.
• Move the feeding pusher forward
to the end of the bar position (see
Chapter 7, Handling).
• Slide the mechanical stop against
the guide bushing (B), and then
move it back 2 mm (.08").
• Tighten the set screws.
• Close the main access cover.
This setting must be done on all feeding pushers when the bar feed system is
being installed, and should be modified (not necessarily) only when the
clamping device is replaced (collet or chuck). In this case, the end of the bar
position should also be adjusted.

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4.1.2 Tubing
With regard to loading the tubing, standard-feeding pushers may be used, as the inside
diameter of the tubes is smaller than the outside diameter of the pushers.
If this is not the case, there are two ways to proceed :
1. The first one consists in making caps
(A) and installing them behind the tubes
(B).
For the caps to stay in place while the
bar is rotating, they should be fitted
with an O-Ring.
2. The second one consists in replacing
the head of the pusher (C) with a
special nose (D), 130 mm in diameter
(available for pusher Ø25 mm only).
Des. Ord. Nr Description
D 021.11.104_130 130mm disk
To feed properly inside the spindle (F),
the outside diameter of the disk (D)
should be turned to a diameter 4 mm
(.015") smaller than that the inside
diameter of the spindle (F) or of the
spindle liner. The head must be adjusted
before it is mounted onto the pusher.
Procedure :
CSwitch the bar feed system in
STOP mode (remote station).
• Undo the set screw (E) holding
the head (C) onto the pusher.
• Remove standard head.
• Install special disk (D), by
pushing it to a stop in the pusher.
• Secure disk with the set screw.

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Note :
The
pneumatic
cylinders,
controlling
the vertical
movement of
the table,
release the
pressure to
allow motor
M2 to proceed
with the
setting. After
the setting is
complete, they
are
reactivated.
4.2 Calibration of the loading table
To obtain an optimal loading, the bar must be perfectly centered on the spindle,
regardless of its diameter or profile. Whenever the diameter or the profile is changed, the
position of the loading table is automatically adjusted according to the parameters entered
by the operator.
If, for any reason whatsoever, the position of the loading table would be incorrect (either
too low or too high), it can be corrected.
Procedure :
Conditions: Bars are on the magazine
The loading table is in the low position
1. Select manual mode by pressing the
[F2] key.
2. Bring the loading table in upper position
[F2].
The bar now faces the spindle of the
lathe.
3. The remote command offers icon [F4]
Forward. To obtain the icon [F3] Adjust
the height of the loading table, press the
[1] key.
4. Press the [F3] key.
5. Four icons are displayed :
[F1] raise the table
[F2] ESC (exit without saving)
[F3] ENTER (save)
[F4] lower the table
CEach time the [F1] or [F4] key is
pressed, the vertical position of the table
is modified by 0.25 mm. For substantial
adjustments, keep pressing the key to
keep the table moving in a continuous
motion
CWhen the desired position is reached,
press the [F3] ENTER key to validate the choice and recalibrate the device at this
new position. Since the calibration must be changed, the remote station
automatically accesses "Part Setup, diameter, length, etc." (See Chapter 7 / point
5.2).
The remote station asks the operator to confirm the settings of the diameter. Using the
keypad, enter the diameter of the bar used to center the table. Press the [F3] ENTER key
twice to validate.
4.2.1 Profiled bars
The loading table of the Quick Load Servo S2 has been designed, in standard version, to
load various bar profiles. To load square bars, see instruction manual,
Appendices/Options for Quick Load Servo S2.

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4.3 Slope of the magazine table
When profiled bar stock is loaded, and
the bars do not slide easily, the slope of
the table may be increased. A reference
mark (A) indicates two positions: one
position for round bars and another of
greater slope, for profiled bars.
By adjusting the set-up axle (C), the slope
of the table varies. If the range of
adjustment is not enough, remove the pin
(B), lift and place the table on the next
hole, and replace the pin.
4.4 Loading fingers set-up
The slope of the table barely affects the loading of bars of greater diameter.
However, it is possible that the bars of small diameter may not load correctly. For this
reason, the fingers must be adjusted whenever the slope of the table is modified.
Remove front cover (A) and adjust the position of the fingers using the knurled knob
located under the loading table.

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Like the loading table, the loading fingers also have two working positions :
1. Round bars
2. Profiled bars.
Fingers set-up for loading profiled bars :
CWhile screwing the knurled knob (B), the loading fingers (E) tilt. Continue
turning until the lower nuts (H) rest against the block (G), in position 2.
CPlace two bars (D) on the table, against the loading fingers (E).
CLoad manually to check the adjustment.
Fingers set-up for loading round bars :
CAdjust the slope of the loading table to the round bar loading position.
CAdjust the stops by unscrewing the knurled handle (B) until the top nuts (F) rest
against the block (G), in position 1.
If the slope of the table must be adjusted between the two indicated positions, adjust
the slope to accommodate this setting. The main point is that only one bar should be
loaded when the loading table rises.

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5. PUTTING THE LATHE INTO OPERATION
5.1 Spindle reduction tubes
The efficiency of the bar guiding while in rotation in the lathe is determined by the
clearance between the spindle reduction tube and the rotating bar. The greater the
clearance is, the more frequent the vibrations are.
Using reduction tubes helps to decrease the clearance. Guiding is thus improved, but, in
addition, the insertion of the bar into the clamping device of the lathe is made much
easier.
The inside diameter of the reduction tubes should be chosen in terms of the diameter of
the bar (diameter of the bar + 1 mm), but should always be larger than that of the
diameter of the feeding pusher.
To guarantee that the small feeding pushers (dia. 6.35 and dia. 12 mm) do not come into
contact, at any time, with the walls of the reduction tube, it is recommended to retract
them from the spindle before the bar begins to rotate (see Chapter 7, section 5).
There are two possibilities for inserting and removing the spindle reductions. The first
consists in moving the bar feed system (see Chapter 6, section 4), and the second one in
passing the reduction tube through the bar feed system. To facilitate clearance, set the bar
stock diameter at 120 mm (settings for Part Setup).
Spindle reduction tubes are available from LNS, upon request.

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Note :
The shorter
the shaped
bar, the more
difficult it will
be to position
it.
5.2 Shaped bars (hex and square)
a) Lathes without spindle orientation
For all lathes without spindle orientation, it is possible to install a bushing, inside the
clamping device, with the same inside profile (+0.2 mm) as the bar.
The rear of this collet and the front of the bars should be flat.
During the loading cycle, a slight rotation of the spindle (about 30 RPM) is desirable).
b) Lathes with spindle orientation
When the material is located in the loading channel, it is "oriented", so to speak, in
position. The profile of the clamping device should be positioned with regard to the
profile of the bar.
If the bar is of the same length as the spindle, at the time it leaves the loading channel it
should already be inserted into the clamping device.
If the distance between the front of the bar feed system and the rear of the spindle is
significant, and the bar has already left the loading channel, but is not yet inside the
clamping device. It is advisable to install in back of the spindle a "Profiled" shaped
support to "keep" the bar oriented while it is being inserted by the loading flag into the
clamping device.