LNS Sprint 545 S2 Instruction Manual
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LNS Sprint 545 S2 Instruction Manual

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Instruction Manual
ENG
Sprint 545 / 565 S2
®
LNS SA
CH-2534 Orvin
www.LNS-group.com
9.545.01.ANG

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Summary of Contents for LNS Sprint 545 S2

  • Page 1 Instruction Manual Sprint 545 / 565 S2 ® LNS SA CH-2534 Orvin www.LNS-group.com 9.545.01.ANG...

  • Page 3: Table Of Contents

    V2.0 TABLE OF CONTENTS CHAPTER 1 : BASIC PRINCIPLES ..............1-1       STRUCTURE ......................... 1-2     RIGHTS ..........................1-3     SAFETY REQUIREMENTS ....................1-5     SAFETY DEVICES ........................ 1-6 CHAPTER 2 : TECHNICAL DATA ..............2-1  ...
  • Page 4     FACTORS AFFECTING PERFORMANCE ................9-2     MAINTENANCE ........................9-6 CHAPTER 10 : APPENDICES ................. 10-1       PROGRAMMING EXAMPLE ....................10-2     ORDERING FORM ......................10-3     LNS ADDRESSES ....................... 10-4 SPRINT 545/565 S2...

  • Page 5: Chapter 1 : Basic Principles

    CHAPTER 1: BASIC PRINCIPLES CHAPTER 1 : BASIC PRINCIPLES SPRINT 545/565 S2...

  • Page 6: Structure

    (see chapter *) or (see point *). 1.2. Captions Whenever possible, the reference numbers contained in the instruction manual are shown with the LNS ordering number of the indicated element. To make it easier to place an order of supplies, a form has been included in the annex at the end of this manual.

  • Page 7: Rights

    LNS SA. LNS SA and its subsidiaries cannot be held responsible for damage and problems arising from the use of options and products other than LNS products, or products approved by LNS SA.
  • Page 8 We hereby declare that the following machinery is manufactured in compliance with the following directives: - Machinery directive: 2006/42/EC - Low voltage directive: 2006/95/EC - EMC directive: 2004/108/EC Manufacturer: LNS SA Route de Frinvillier CH- 2534 Orvin Switzerland Technical Dossier Compiled by: Plaseco Kurt De Pauw Chemin des Petits-Clos 12 CH- 1744 Chénens...

  • Page 9: Safety Requirements

     If it is necessary to move the bar feeder after it especially safety switches. has been commissioned, LNS or its local  To avoid any harm to persons or damage to representative must be contacted before any components, use only the indicated points for attempt to restart it.

  • Page 10: Safety Devices

    By pressing the emergency stop button located on the remote control, the functions of the bar feeder and the lathe are immediately stopped. The LNS Company, or its local representative, may not be held responsible for possible accidents or property damage, whether caused directly or not, by any means whatsoever, if certain safety devices have not been included.

  • Page 11: Chapter 2 : Technical Data

    CHAPTER 2: TECHNICAL DATA CHAPTER 2 : TECHNICAL DATA SPRINT 545/565 S2...

  • Page 12: Characteristics

    CHAPTER 2: TECHNICAL DATA CHARACTERISTICS Unit 12’ Weight 1100 Dimensions See p. 2-3 SPRINT 545: 500 / Retraction distance (option) SPRINT 565 S2:350 min. Ø round bar min. Ø profiled bar (size on flat sides) square: 4 - hexagonal: 5 Sprint 545: max.

  • Page 13: Floor Plan

    CHAPTER 2: TECHNICAL DATA FLOOR PLAN The plans below are for the SPRINT 545 and SPRINT 565 S2 respectively, showing the most frequently used dimensions for positioning the bar feeder. Details on the dimensions of other parts or elements of the bar feeder will be provided upon request.
  • Page 14 CHAPTER 2: TECHNICAL DATA SPRINT 545/565 S2...

  • Page 15: Layout Of The Elements

    CHAPTER 2: TECHNICAL DATA LAYOUT OF THE ELEMENTS Designation Description Pusher (not visible) Belt drive Vice Remnant control Guiding blocks Remnant recovery device Remote control Main access cover Front rest Interface connector (not shown) Air blast Measure path probe Front stand Retraction device (option) Rear stand Bar magazine...
  • Page 16 CHAPTER 2: TECHNICAL DATA SPRINT 545/565 S2...

  • Page 17: Chapter 3 : System Start Up

    CHAPTER 3: SYSTEM START UP CHAPTER 3 : SYSTEM START UP SPRINT 545/565 S2...

  • Page 18: Transportation

    When transported by sea or air, the second solution is recommended. Regardless of the type of packaging, the uncrating and lifting instructions recommended by LNS must be observed in order to prevent any injuries to persons or damage to objects. These instructions are stapled to the crate of the bar feeder.
  • Page 19 CHAPTER 3: SYSTEM START UP From this point on, the bar feeder is unpacked in the same way as when delivered on a pallet. The bar feeder is always delivered as follows:  A pusher and guiding elements set is mounted in the bar feeder (A). Depending on the purchase order, other sets may be delivered in a separate box.
  • Page 20 CHAPTER 3: SYSTEM START UP 1.3. Preparation for assembly For assembly and installation of the bar feeder, it is advisable to contact LNS or one of its agents. The latter cannot be held responsible for any malfunction resulting from an incorrect installation in which they did not take part.

  • Page 21: Assembly

    During the alignment, ensure that there is no reduction in the spindle (spindle liner). The alignment may be carried out using a nylon string, an optical tool, etc. If you do not have any alignment tools, please contact LNS or their local representative so they may take care of the bar feeder installation.

  • Page 22: Anchoring

    CHAPTER 3: SYSTEM START UP ANCHORING Once the bar feeder is in place and perfectly aligned, it should be anchored to the ground to make it stable. Four anchorage points (A) have been provided on each foot for this purpose. Eight anchoring bolts (B) must be provided by the customer (minimum M10 x 100 mm).

  • Page 23: Chapter 4 : Electrics

    CHAPTER 4: ELECTRICS CHAPTER 4 : ELECTRICS SPRINT 545/565S2...

  • Page 24: Electrical Equipment

    Please read the safety instructions provided at the beginning of this manual before handling the following devices. Particular attention should be given to the handling of electrical elements because of risks of electrocution. In case of possible electrical malfunctions, it is advisable to contact LNS or their local representative. 1.1. Description Electrical equipment and schematics comply with international electrical rules contained in ISO/IEC 204- 1, 617.
  • Page 25 CHAPTER 4: ELECTRICS 1.2. Layout of the electrical elements on the bar feeder SQ3/SQ4 SQ12 SQ17 SQ18 SQ19 SQ16 SQ6/SQ7 SQ13/SQ14 SQ10 SQ11 SQ15 SPRINT 545/565S2...

  • Page 26: Electrical Cabinet

    CHAPTER 4: ELECTRICS 1.3. Layout of the electrical elements on the bar feeder Designation Article No Description 4.972 Remote control Electrical cabinet 2.210.150 Hydraulic pump motor 44.0106 servomotor 4.886 Bar magazine gear motor QS 1 4.242 Main disconnect switch SP 1 3.638 Pneumatic pressure control unit SP 2...
  • Page 27 1.4.1. Hydraulic pump motor Particular attention should be given to the handling of electrical elements because of risks of electrocution. In case of possible electrical malfunctions, it is advisable to contact LNS or their local representative. It is forbidden to intervene inside the bar feeder when it is powered on. Adaptation to local electricity supply must be carried out by qualified personnel.
  • Page 28 CHAPTER 4: ELECTRICS ELECTRICAL CABINET 2.1. List of the elements in the electrical cabinet (see next page for their location) Designation Article No Description Interface end terminal block X2 End terminal block X3 Safety end terminal block X1 4.907 Programmable controller PCD3 (PLC) 44.0105 400W servo amplifier 4.419...
  • Page 29 CHAPTER 4: ELECTRICS 2.2. LAYOUT OF THE ELEMENTS SPRINT 545/565S2...
  • Page 30 CHAPTER 4: ELECTRICS 2.3. Description of the elements in the cabinet 2.3.1. Master switch QS1 In accordance with the requirements of the international IEC standards, when the master switch is in the O/off position, it interrupts the input of the three phases in the bar feeder's electrical cabinet.
  • Page 31 CHAPTER 4: ELECTRICS 2.3.4. Transformers 230 V (T1) and 24 VDC (T2) The bar feeder's entire low voltage network and some of the interface signals (see point 4.3.2) are powered by the transformer. The transformer has an output of 230 Volts which powers the servo motor amplifier. A 24 VDC power supply powers the rest of the machine.
  • Page 32 4-10 CHAPTER 4: ELECTRICS 2.3.5. Servo amplifier The SERVO amplifier enables the programmable controller to control the movements of the motor. The input values, as well as the position of the pusher carrier, are continuously registered. The values are saved by means of a battery, and, therefore, the axes do not need to be placed at zero when the bar feeder is powered on.
  • Page 33 CHAPTER 4: ELECTRICS 4-11 Cover Open the battery compartment. Locking clip Remove the battery from its housing and replace. Close the battery compartment. "Click in" to close SPRINT 545/565S2...
  • Page 34 4-12 CHAPTER 4: ELECTRICS 2.3.6. Programmable Logic Controller The programmable controller (PLC) continuously scrutinises all data from the remote control, probes, switches, cells, interface, etc. The program loaded into the PLC manages this information. The PLC then distributes the interface signals, controls the motors and displays the appropriate messages on the remote control.
  • Page 35 CHAPTER 4: ELECTRICS 4-13 2.3.7. PLC inputs / outputs Inputs Outputs Inlet Des. Description output Des. Description Measuring cell Material deposit valve Pusher support open Air blast valve Pusher support closed YV5A Pushe bracket opening valve Flag in referencing position YV5B Valve pusher support closing Material deposit (top)
  • Page 36 4-14 CHAPTER 4: ELECTRICS SPRINT 545/565S2...

  • Page 37: Interface Diagram

    CHAPTER 4: ELECTRICS 4-15 INTERFACE DIAGRAM SPRINT 545/565S2...

  • Page 38: Interface

    (A). 4.1. Description The interface cable(s), between the bar feeder and the lathe is (are) provided by LNS. Although an example of an interface diagram is provided, the diagram for the interface corresponding to your device, essential when making the electrical connection, is located inside the electrical cabinet.
  • Page 39 LNS bar feeders are equipped with their own thermal protection systems (breakers, thermal relays, fuses, etc.). The power supply for the bar feeder should be connected to the output of a breaker mounted in the electrical control box of the lathe (10 A max.).
  • Page 40 4-18 CHAPTER 4: ELECTRICS Lathe collet signal (Input A1) This signal is for checking the mode of the lathe collet (open or closed), and is mainly used for feeding parts. For safety reasons, wire a normally open contact, coming from the signal of the lathe collet.
  • Page 41 Emergency Stop circuit of the lathe. 4.2.4. Options The options described below are an integral part of the standard equipment of LNS bar feeders. These signals, however, are not required for the proper operation of the devices, or the safety locking for protecting persons and materials.
  • Page 42 4-20 CHAPTER 4: ELECTRICS SPRINT 545/565S2...

  • Page 43: Chapter 5 : Pneumatics

    CHAPTER 5: PNEUMATICS CHAPTER 5 : PNEUMATICS SPRINT 545/565 S2...

  • Page 44: Pneumatic Equipment

    CHAPTER 5: PNEUMATICS PNEUMATIC EQUIPMENT Please read the safety instructions provided at the beginning of this manual before handling the following devices. 1.1. Description The following devices for the bar feeder are actuated pneumatically:  Deposit of the bar in the guiding blocks, opening and closing of the guiding blocks ...

  • Page 45: Air Handling

    CHAPTER 5: PNEUMATICS AIR HANDLING 2.1. Description The air filtering device serves to filter air and to set its pressure before it is distributed into the pneumatic circuit of the bar feeder. The air must be supplied at a minimum pressure of 5 bar (500 kPa) and, whenever possible, be clean and dry.

  • Page 46: Pneumatic Battery

    CHAPTER 5: PNEUMATICS PNEUMATIC BATTERY 3.1. Description The pneumatic battery includes the control and monitoring elements of the bar feeder pneumatic circuit. 3.2. Layout of the elements Designation Description Inlet connections Outlet connections Silencer Controller connection Bar loading valve YV 2 Valve air blast YV 3 Valve remnant device clamping...
  • Page 47 CHAPTER 5: PNEUMATICS 3.3. Description of the components 3.3.1. Solenoid valves Directly controlled by the PLC, the solenoid valves activate the pneumatic cylinders. The pneumatic cylinders can be activated manually by pressing a key (B). This manoeuvre may prove to be useful during tests or maintenance.
  • Page 48 CHAPTER 5: PNEUMATICS 3.4. PNEUMATIC DIAGRAMS SPRINT 545/565 S2...
  • Page 49 CHAPTER 5: PNEUMATICS SPRINT 545/565 S2...
  • Page 50 CHAPTER 5: PNEUMATICS SPRINT 545/565 S2...

  • Page 51: Chapter 6 : Hydraulics

    CHAPTER 6: HYDRAULICS CHAPTER 6 : HYDRAULICS SPRINT 545/565S2...

  • Page 52: Hydraulic Equipment

    CHAPTER 6: HYDRAULICS HYDRAULIC EQUIPMENT Please read the safety instructions provided at the beginning of this manual before handling the following devices. 1.1. Description The guiding concept for the bar feeder consists mainly of keeping the bar suspended in an oil bath. The hydraulic oil is contained in the chassis of the device.
  • Page 53 CHAPTER 6: HYDRAULICS 1.3. Setting The pressure is constantly monitored by a pressure switch set in the factory at a point of release of 0.5 bar (50 kPa). It may be adjusted, if necessary, as follows: Using a screwdriver, unscrew the clamping screw (D). Insert a hex head wrench (5mm) into the center of the pressure switch (E).

  • Page 54: Hydraulic Elements

    CHAPTER 6: HYDRAULICS HYDRAULIC ELEMENTS Symbol Description Designation Hydraulic pump motor Hydraulic pressure control unit Device chassis Guiding block Front rest SPRINT 545/565S2...

  • Page 55: Chapter 7 : General Description

    CHAPTER 7: GENERAL DESCRIPTION CHAPTER 7 : GENERAL DESCRIPTION SPRINT 545/565S2...

  • Page 56: Bar Magazine

    CHAPTER 7: GENERAL DESCRIPTION BAR MAGAZINE Please read the safety instructions provided at the beginning of this manual before handling the following devices. 1.1. Bar magazine with lift 1.1.1. Description For all lengths of bar feeder (3M, 12', 4M), the bar magazine comprises 3 bar supports. The bars are set down on the support hooks.

  • Page 57: Guiding Blocks

    CHAPTER 7: GENERAL DESCRIPTION GUIDING BLOCKS Please read the safety instructions provided at the beginning of this manual before handling the following devices. 2.1. Description The guiding blocks comprise a mobile cover and a fixed lower base, which house the guiding elements. Sets of guiding elements of different diameters are available.
  • Page 58 CHAPTER 7: GENERAL DESCRIPTION 2.3. Guiding elements (shells) number pusher carrier round of blocks pusher lower shell [C] split shell [B] Sprint 545 2 (014.06.033/…) 3 (023.031.064/…) Sprint 565 2 (014.06.033/…) 3 (023.031.064/…) for round bars fixed front rest auto front rest sets of shells [D] round shell [E1] round shell [E2]...
  • Page 59 2.4. Long guiding elements for profiled bars (option) To improve guidance of hexagonal bars, LNS offers long guiding elements. These elements replace the standard guiding elements on the double blocks and enable work to be carried out at optimum rotation speeds.

  • Page 60: Pusher

    CHAPTER 7: GENERAL DESCRIPTION PUSHER Please read the safety instructions provided at the beginning of this manual before handling the following devices. When changing the guiding elements and the pusher, always ensure that point 3.2.3 of the set-up manual is applied. 3.1.
  • Page 61 CHAPTER 7: GENERAL DESCRIPTION 3.2.1. Pusher assembly with LP 1596 mm collet N° Attache poussoir Fixation poussoir Axe d'adaptation N° Poussoir Embout tournant Adaptation pince/embout N° Pince Øext. Pince Øint. min. Øint. max. Convertible G/Av : 055.015.194 D/Av : 055.015.204 10 11 052.15.364D/10 015.031.013/100...
  • Page 62 CHAPTER 7: GENERAL DESCRIPTION Pusher assembly with LP 1596 mm chuck cone Cone N° Attache poussoir Fixation poussoir Axe d'adaptation N° Poussoir Embout tournant Adaptation cône/embout N° Cône Convertibilité G/Av : 055.015.194 D/Av : 055.015.204 052.15.364D/10 015.031.013/100 052.15.474D/10 G/Av : 545.15.A001A D/Av : 545.15.A002A G/Av : 545.15.A001A 015.031.013/100...

  • Page 63: Belt Drive

    CHAPTER 7: GENERAL DESCRIPTION BELT DRIVE 4.1. Description The belt drive is controlled by the servo motor (M2), which controls all the forward and reverse movements of the pusher and the positioning of the bar, and the insertion and extraction of the bar in the collet.

  • Page 64: Remnant Extraction System (Option)

    7-10 CHAPTER 7: GENERAL DESCRIPTION REMNANT EXTRACTION SYSTEM (option) Please read the safety instructions provided at the beginning of this manual before handling the following devices. 5.1. Description The vice serves to hold the material in order to insert into the collet when loading a new bar, and to extract it from the collet of the bar feeder during remnant extraction.
  • Page 65 CHAPTER 7: GENERAL DESCRIPTION 7-11 5.3. Replacement of the blades The clamping blades must be replaced when worn out. To do this: Undo the 3 retaining screws and remove the worn clamping blades (A, B and C). Install the new blades, check their positioning according to the drawing below, and secure them with the retaining screws.

  • Page 66: Front Rest

    7-12 CHAPTER 7: GENERAL DESCRIPTION FRONT REST Please read the safety instructions provided at the beginning of this manual before handling the following devices. 6.1. Description A new guiding element (A) is located in the front rest. The front rest is supplied with hydraulic oil during the entire automatic cycle via the fitting (B). At the front rest outlet, some of the hydraulic oil which is on the bar is recovered using a centrifugal effect.
  • Page 67 CHAPTER 7: GENERAL DESCRIPTION 7-13 6.3. Adjusting the hydraulic flow rate of the front rest and the pneumatic flow rate of the air gun The hydraulic flow rate of the front rest and the pneumatic flow rate of the air gun are adjusted using the two flow reducers at the rear of the front rest.

  • Page 68: Retraction Device (Option)

    7-14 CHAPTER 7: GENERAL DESCRIPTION RETRACTION DEVICE (option) It is strictly prohibited to use the retraction system before the bar feeder is anchored to the ground. Please read the safety instructions provided at the beginning of this manual before handling the following devices. Before handling the retraction mechanism, check to see that the interface cables between the lathe and the bar feeder are long enough.

  • Page 69: Position Option

    CHAPTER 7: GENERAL DESCRIPTION 7-15 2-POSITION OPTION When the bar loader must be adapted to a lathe which has no guide bush, this option (detail A above) allows the loader to be moved with precision in the direction of the lathe so that it can be connected directly to the spindle.

  • Page 70: Automatic Front Rest (Option)

    7-16 CHAPTER 7: GENERAL DESCRIPTION AUTOMATIC FRONT REST (option) Please read the safety instructions provided at the beginning of this manual before handling the following devices. When working with a non-round bar, the automatic front rest is deactivated. To use a rotating shell, a standard front rest must be installed 9.1.

  • Page 71: Position Pneumatic Front Rest (Option)

    CHAPTER 7: GENERAL DESCRIPTION 7-17 10. 2-POSITION PNEUMATIC FRONT REST (option) Please read the safety instructions provided at the beginning of this manual before handling the following devices. When working with a non-round bar, the automatic front rest is deactivated. To use a rotating shell, a standard front rest must be installed.
  • Page 72 7-18 CHAPTER 7: GENERAL DESCRIPTION SPRINT 545/565S2...

  • Page 73: Chapter 8 : Handling

    CHAPTER 8: HANDLING CHAPTER 8 : HANDLING SPRINT 545/565S25...

  • Page 74: Powering On

    Please read the safety instructions provided at the beginning of this manual before handling the following devices. The motor of the SPRINT 545 S2 / 565 S2 bar feeder is equipped with a built-in absolute encoder that continuously monitors the position of the pusher.

  • Page 75: Remote Control

    CHAPTER 8: HANDLING REMOTE CONTROL The ergonomic and user-friendly remote control with a clear built-in display facilitates the handling of the bar feeder. Depending on the sequence under way, the bar feeder gives access only to those functions which are available, thus avoiding any incorrect handling, and reducing the access time to the necessary functions.
  • Page 76 CHAPTER 8: HANDLING 2.1. Display The liquid crystal display with touchscreen function provides the operator with all the necessary data, both for handling the bar feed system and for maintenance. Current Current status sequence or mode Information Unit (mm or screen on inch) current...
  • Page 77 CHAPTER 8: HANDLING Pusher forward (picture may be reversed depending on the feed Validate side) Pusher reverse (picture may be reversed depending on the feed Cancel side) Close guide zone Load a bar in the guiding elements Confirm manual extraction of a bar from Open guide zone the guiding elements Automatic Top-Cut positioning in...
  • Page 78 CHAPTER 8: HANDLING 2.2. Function keys F1 - F4 The variable function keys are located right below the display. The functions attributed to them are indicated on the display by icons. As the operator advances through the handling operations, the functions of the buttons are automatically reattributed.

  • Page 79: Set-Up

    CHAPTER 8: HANDLING SET-UP Please read the safety instructions provided at the beginning of this manual before handling the following devices. All handling, adaptations and settings required by the bar feeder to carry out a specific job are part of the set-up.
  • Page 80 CHAPTER 8: HANDLING 3.1. Guiding elements adaptation Depending on the bar stocks to feed, a changeover of the guiding elements (bearings, pusher, collet, front rest adjustment) may be necessary. The elements of the cover must only be replaced if they are worn or damaged. The guide channels may be damaged by corrosive products.
  • Page 81 See this chapter, section SETTINGS for further information. 3.1.1. Changing the front rest When the guiding elements are worn, have a standard replacement of the front rest performed. To do so, contact LNS SA. SPRINT 545/565S25...
  • Page 82 8-10 CHAPTER 8: HANDLING 3.2. LATHE SETUP 3.2.1. Clamping method Collets There are different kinds of collets that are more or less effective: a) Single cone collet The bar is held over about 350 degrees, over a length of 0.5 to 7 times the diameter. Efficiency : good to very good b) Biconical collet Clamping over 1 or 2 x 350 degrees, over an...
  • Page 83 + 1 mm), but should always be larger than that of the diameter of the feeding pusher. For inserting and removing the spindle reductions, move the bar feed system using the retraction device. Spindle reduction tubes are available from LNS, upon request. SPRINT 545/565S25...

  • Page 84: Software Settings

    8-12 CHAPTER 8: HANDLING SOFTWARE SETTINGS Please read the safety instructions provided at the beginning of this manual before handling the following devices. 4.1. Description The SPRINT 545 / 565 S2 bar feeder has various parameters and functions allowing the operator to configure it so that it adapts as closely as possible to the lathe on which it is installed, as well as to the production mode being used.
  • Page 85 Access to other languages Miscellaneous functions  Referencing position  Front rest setup  Timings on lathe’s clamping device Library This function allows for loading, adding, saving, replacing a part Service Reserved for LNS technicians for maintenance and displaying masked parameters. SPRINT 545/565S25...
  • Page 86 8-14 CHAPTER 8: HANDLING 4.2.1. Part adjustment Shape and diameter of the bar, length of the part Bar profile Round bar:  Outside diameter Standard loading cycle Hexagonal / square bar:  Size on flat sides  Size on corners ...
  • Page 87 CHAPTER 8: HANDLING 8-15 Number of clamping device openings for overall part length When the machining of a part requires several openings of the collet (e.g. a long part, or transfer of the part to the second spindle), some interface conflicts may occur during the feeding process. It is important for the bar feeder to be “informed”...
  • Page 88 8-16 CHAPTER 8: HANDLING The bar feeder gives the order to the lathe to machine shorter pieces during long remnants (may not be visible) When the current manufacturing generates substantially long remnants, it is possible (depending on the capabilities of the lathe), to select a second production mode for machining the residual material. The lathe starts a second machining program and produces shorter pieces.
  • Page 89 CHAPTER 8: HANDLING 8-17 End of bar position (may be not visible) The end of bar position determines the moment when the bar feeder enters the loading cycle. In principle, the end of bar position is adjusted as closely as possible behind the lathe's clamping unit (approximately 5 mm) to ensure the shortest remnants.
  • Page 90 8-18 CHAPTER 8: HANDLING 4.2.2. Application setup Part feed out with/without turret Part feed out with turret This parameter determines whether the lathe controls the part feeding. In this case, a special loop must be provided in its programme. Additional parameter (may be not visible): a) The turret is parked in position: the turret travels to the point the bar stock will be pushed to and waits that the bar feed has pushed the material to this point.
  • Page 91 CHAPTER 8: HANDLING 8-19 4.2.3. Positions Position end of bar signal The end of bar position determines the moment when the bar feeder enters the loading cycle. In principle, the end of bar position is adjusted as closely as possible behind the lathe's clamping unit (approximately 5 mm) to ensure the shortest remnants.
  • Page 92 8-20 CHAPTER 8: HANDLING Auxiliary end of bar position (may be not visible) Depending on the lathe and its options, the auxiliary end of bar may be used in several ways. For example, for the opening of an additional front rest installed at the rear of the lathe spindle. The procedure is the same as this for the end of bar signal.
  • Page 93 CHAPTER 8: HANDLING 8-21 4.2.4. Torques Depending on the diameter of the bar, the bar feed system will automatically select an appropriate pushing torque and speed. The operator may modify this selection if necessary. When the material to be loaded has a high specific weight, the torque must be significant. The contrary applies if the specific weight of the bars is low.
  • Page 94 8-22 CHAPTER 8: HANDLING 4.2.5. Language This parameter allows to adapt the language in which the messages will appear, depending on the country of destination of the bar feed system (for practical reason, it is not necessary to stop the bar feeder to select a language).

  • Page 95: Parts Library

    8-23 PARTS LIBRARY The party library is only operational if an optional memory extension card is installed on the PLC. Please contact LNS for more information. PART LIBRARY The main « Parts Library » shows the current state of the library.

  • Page 96: Service

    Changing these values can damage the devices and create operator safety issues. Therefore, these parameters are protected with a password, and only an LNS (or certified) technician is authorised to modify them. Bar feeder length (2m/3m/12’/4m)

  • Page 97: Help Screens

    CHAPTER 8: HANDLING 8-25 HELP SCREENS From any screen in manual or automatic mode, press the HELP or “?” button on the screen, displays the help screens to troubleshoot or gather information about the software and components. Software This screen displays the current software running the bar feeder and its version.
  • Page 98 8-26 CHAPTER 8: HANDLING This screen displays the configured addresses IP addresses. Alarms list This screen shows the history of the last 10 alarms. Memory list This screen helps entering and monitoring specific bits (status in green/red), and register values (value in left box).

  • Page 99: Automatic Cycle

    CHAPTER 8: HANDLING 8-27 AUTOMATIC CYCLE Please read the safety instructions provided at the beginning of this manual before handling the following devices. 8.1. Description The barfeed autonomy is depending on the bar stocks placed by the operator on the loading ramp. This task can be performed anytime in the production cycle.

  • Page 100: End Of Bar Position

    8-28 CHAPTER 8: HANDLING END OF BAR POSITION 9.1. Description 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"...
  • Page 101 CHAPTER 8: HANDLING 8-29 The remote command displays the following text : "END OF BAR POSITION". Tap the value displayed on the screen. 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...

  • Page 102: Top-Cut Position

    8-30 CHAPTER 8: HANDLING TOP-CUT POSITION 10.1. Description During feeding, the bar is inserted in the spindle and automatically positioned in the clamping unit of the lathe. 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.

  • Page 103: Powering Down

    CHAPTER 8: HANDLING 8-31 [+/-] by offset correction:  Press the key corresponding to the icon [+/-]. The current top cut position (z) is displayed. [+/-]  Press the [+] icon to add the value, or the icon [-] to subtract it. The new value is stored.
  • Page 104 8-32 CHAPTER 8: HANDLING SPRINT 545/565S2...

  • Page 105: Chapter 9 : Malfunctions

    CHAPTER 9: MALFUNCTIONS CHAPTER 9 : MALFUNCTIONS SPRINT 545/565S2...

  • Page 106: Factors Affecting Performance

    CHAPTER 9: MALFUNCTIONS FACTORS AFFECTING PERFORMANCE 1.1. Installation Installation is a very important phase which, if neglected, could seriously compromise the operation of the bar feeder. The following parameters must be taken into account: Distance The distance between the bar feeder and the lathe has a huge effect on the quality of the guiding.
  • Page 107 CHAPTER 9: MALFUNCTIONS 1.4. Material Bars To ensure the bar is inserted into the bar feeder collet perfectly, it is essential that the bars are chamfered (at the rear), concentrically, at 30°. It is recommended that the bars are deburred at the front, to prevent them from catching when the bar is inserted into the spindle as it is fed.
  • Page 108 CHAPTER 9: MALFUNCTIONS 1.5. Clamping mode 1.5.1. Collets There are different kinds of collets that are more or less effective: Simple cone collet. The bar is held over about 350 degrees, over a length from 0.5 to 7 times the diameter. Efficiency : good to very good Bi-conical collet Clamping over 1 or 2 x 350 degrees, over an...
  • Page 109 CHAPTER 9: MALFUNCTIONS 1.5.2. 3-jaws chuck With this type of clamping, one should be very careful given that in many cases the bar is held only at three points, thereby greatly increasing the risk of vibration. Errors and options to improve the effectiveness of the clamping grips: Hard grips Wrong: The radius of the grip is greater than the radius of the bar.

  • Page 110: Maintenance

    CHAPTER 9: MALFUNCTIONS MAINTENANCE Please read the safety instructions provided at the beginning of this manual before handling the following devices. 2.1. Hydraulics It is important to clean the bars (even briefly) before loading them on the feeder magazine. Excessive dirt can form a deposit at the base of the bar feeder, which can in turn slow the oil return.

  • Page 111: Chapter 10 : Appendices

    CHAPTER 10: APPENDICES 10-1 CHAPTER 10 : APPENDICES SPRINT 545/565S2...

  • Page 112: Programming Example

    10-2 CHAPTER 10: APPENDICES PROGRAMMING EXAMPLE MAIN PROGRAM N... ”M” CODE “LATHE IN AUTOMATIC CYCLE” N... SPINDLE STOP N... COOLANT OFF N... TURRET TO FEED IN POSITION N... CLAMPING UNIT OPEN N... TURRET TO FEED OUT POSITION N... END OF BAR CHECK (PROGRAM JUMP) > >...

  • Page 113: Ordering Form

    CHAPTER 10: APPENDICES 10-3 ORDERING FORM This form should be photocopied, duly filled out, and returned to your retailer or nearest LNS agent. Company name: Person in charge: Address: ZIP: City: Country: Phone: Fax: Type of device: Serial number: Qty.

  • Page 114: Lns Addresses

    10-4 CHAPTER 10: APPENDICES LNS ADDRESSES LNS Europe: www.lns-europe.com LNS America: www.lns-america.com LNS Asia: www.lns-asia.com SPRINT 545/565S2...

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