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MEP COBRA 352 NC- EVO Use And Maintenance Manual

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USE AND MAINTENANCE MANUAL
EN
COBRA 352 NC- EVO
2009
YEAR OF MANUFACTURE: ______________

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Summary of Contents for MEP COBRA 352 NC- EVO

  • Page 1 USE AND MAINTENANCE MANUAL COBRA 352 NC- EVO 2009 YEAR OF MANUFACTURE: ______________...

  • Page 3: Ce Conformity Declaration

    61045 Pergola (PU) ITALIA Tel. 072173721- Fax 0721734533 ereby declares that the circular sawing machine: Machine Type: SAWING MACHINE Machine model: COBRA 352 NC- EVO 211662/43/O Serial number: 2009 Year of manufacture: is in specification with the following directives: • DIRECTIVE EEC MACHINES DIRECTIVE 2006/42/CE •...

  • Page 5: Table Of Contents

    ....... . . 2- 1 COBRA 352 NC- EVO model ..... .
  • Page 6 Key for control console keyboard ....5- 4 Basic instructions for carrying out a cutting operation cycle 5- 5 Manoeuvring the cutting head .
  • Page 7 Displaying and editing the set- up parameters ..7- 1 Set language parameter ......7- 1 Set parameter for machine type .
  • Page 8 ........9- 1 COBRA 352 NC- EVO three- phase with two speeds ..

  • Page 9: Introduction And Technical Specifications

    This work tool has been designed as a simple and reliable answer to the wide range of cutting needs of the modern workshop. COBRA 352 NC- EVO is a disk sawing machine and can perform mitre cuts of 45° on the left and 45° on the right.

  • Page 10: Machine Presentation

    (FCTI) (FCTA) 5. The cutter vice opens 6. The cutting material 7. The cutting vice closes 8. The feed vice opens is fed and the cutting cycle starts up Use and maintenance manual COBRA 352 NC- EVO 1- 2...

  • Page 11: Machine Specification

    Machine specification The anodised aluminium name plate is riveted on the side of the machine; the same data are reproduced on the declaration of conformity included with this use and maintenance manual. COBRA 352 NC-EVO When communicating with the Technical Service department, the model, serial N.B.
  • Page 12 CUTTING CAPACITY Section 0° 180 x 70 45° ' 135 x 60 45° a 135 x 60 CUTTING CAPACITY With head placed on the left Section 45° ' 160 x 35 Use and maintenance manual COBRA 352 NC- EVO 1- 4...
  • Page 13 PACKED WEIGHT Wooden cage and pallet Wooden pallet 2200 2000 1650 Introduction and technical specifications 1- 5...

  • Page 14: Dimensions

    MEP S.p.A. Dimensions MACHINE INSTALLED Work table height Weight 1700 2360 1750 1610 Use and maintenance manual COBRA 352 NC- EVO 1- 6...

  • Page 15: Functional Parts

    Functional parts COBRA 352 NC- EVO model In order for the user to move towards a full understanding of how the machine works, which is described in detail in the chapter 5, this chapter deals with the main units and their locations.

  • Page 16: Cutting Head

    The vices are controlled by the vice opening and closing button on the control panel. The vice approaching movement is manual and the closing is operated by a pneumatic cylinder. Use and maintenance manual COBRA 352 NC- EVO 2- 2...

  • Page 17: Oil Pneumatic Unit

    Oil pneumatic unit This unit drives and regulates the upward and downward movement of the cutting head and consists of a hydro- pneumatic cylinder and recovery electro- valves. The head descent regulator on the control panel can be used to regulate the quantity of oil that flows into the cylinder and naturally the downward movement speed of the cutting head.

  • Page 18: Control Panel

    The control panel swivels on two articulated joints so that it can be positioned by the operator for greater ease- of- use and safety. Use and maintenance manual COBRA 352 NC- EVO 2- 4...

  • Page 19: Turntable

    Turntable Made in cast iron, it is the supporting plane for the material being processed and can rotate on the central pin together with the cutting head indicating the cutting angle by the etched grading. The cutting slot is made of two replaceable aluminum plates.

  • Page 20: Feeder

    32 batches of pieces to be cut, each with different amounts and lengths. Use and maintenance manual COBRA 352 NC- EVO 2- 6...

  • Page 21: Safety And Accident Prevention

    Use of the machine The disk vertical sawing machine COBRA 352 NC- EVO can be used only and exclusively for cutting profiles and solid parts in aluminum and light alloys. Other types of material and machining are not compatible with the specific characteristics of the saw.

  • Page 22: General Recommendations

    Recommendations to the operator Always wear proper goggles or protective glasses. Do not use the machine without the guards in position. Replace the polycarbonate windows , if subject to corrosion. Use and maintenance manual COBRA 352 NC- EVO 3- 2...
  • Page 23 Do not allow hands or arms to encroach on the cutting zone while the machine is in operation. Do not wear oversize clothing with long sleeves, oversize gloves, bracelets, necklaces or any other object that may become entangled in the machine during working; long hair must be tied back and bunched. Always disconnect the power supply to the machine before carrying out any maintenance work whatsoever, including in the case of abnormal operation of the machine.
  • Page 24 Before carrying out any repair works on the machine, consult the MEP Technical Service; this can also be done through an agency in the country in which the machine is being used.

  • Page 25: Machine Safety Devices

    EEC Committee in the directives regarding safety of machinery, health and safety at work, personal protection and safeguarding of the environment. These standards have been applied to the COBRA 352 NC- EVO band saw. Reference standards MACHINE SAFETY EEC MACHINES DIRECTIVE 2006/42/CE ;...

  • Page 26: Protection Against Accidental Contact With The Blade

    Plant protected against short circuits by quick blowing fuses and earthing of all work and accidental contact parts. Protection from accidental start- up by a minimum voltage relay in the case of power failure. Use and maintenance manual COBRA 352 NC- EVO 3- 6...

  • Page 27: Emergency Devices

    ...Emergency devices applicable to the COBRA 352 NC- EVO: 1. Emergency stop: a non- return mushroom- head pushbutton, colour red on yellow background, is located on the control panel of the machine. To release the pushbutton, the actuator must be rotated 45°...

  • Page 28: Noise Level Measurement

    50 x 40 mm solid tube in aluminium Description Disc blade HSS HM 350x32 Z 84 Test 3rd Mean sound level (Leq) 88,37 dB(A) Results Environmental correction (K) 5,73 dB(A) Peak sound power (Lw) 98,33 dB(A) Use and maintenance manual COBRA 352 NC- EVO 3- 8...

  • Page 29: Electromagnetic Compatibility

    The following text contains a list of the applied standards and the results of the electromagnetic compatibility testing of machine model COBRA 352 NC- EVO; Test report no. 120101. Emissions CEI EN 61000- 6- 4 (2002) Electromagnetic Compatibility (EMC) - Generic standard regarding emissions.
  • Page 30 IMMUNITY TO CONDUCTED ELECTROMAGNETIC FIELDS Gate Test levels Evaluation criterion Result A.C. power supply Complies input IMMUNITY TO IRRADIATED ELECTROMAGNETIC FIELDS Gate Test levels Evaluation criterion Result Enclosure 10 V/m Complies Use and maintenance manual COBRA 352 NC- EVO 3- 10...

  • Page 31: Machine Installation

    Machine installation Packaging and storage MEP S.p.A. use packing materials that guarantee the integrity and protection of the machine during its transport to the customer. The type of packing differs according to the size, weight and destination. Therefore the customer will receive the machine in one of two following ways: 1.
  • Page 32 Open crate in the illustrated order: 1. remove nails and lift the top of the cage; Use and maintenance manual COBRA 352 NC- EVO 4- 2...
  • Page 33 2. remove nails and lower walls; 3. remove heat- shrink covering; 4. remove the straps; 5. remove nails from pallet securing planks and remove planks; 6. remove the front panel and insert fork tines. To locate the machine in the workplace, the machine dimensions and necessary operator working space, including the spaces laid down in safety standards, must be taken into account.

  • Page 34: Anchoring The Machine

    90% lighting: not less than 500 Lux. The machine is already protected against voltage variations, but will only run Warning trouble- free if the variations do not exceed ± 10%. Use and maintenance manual COBRA 352 NC- EVO 4- 4...

  • Page 35: Check List

    Check list Before starting installation, check that all the accessories, whether standard or optional, supplied with the machine are present. The COBRA 352 NC- EVO sawing machine in the single- phase, three- phase with 1 or 2 speeds, with or...

  • Page 36: Connection To The Compressed Air Supply

    1 - DOWN PIPE 2 - CONDENSATE COLLECTOR 3 - DRAIN COCK 4 - AIR FILTER 5 - DRAIN COCK 6 - CONNECTING HOSE Use and maintenance manual COBRA 352 NC- EVO 4- 6...

  • Page 37: Connection To The Power Supply

    Connection to the power supply Before connecting the machine to the power supply, check that the socket is not connected in series with other machines. This requirement is fundamental for the good operation of the machine. To connect the machine to the power supply, proceed as follows: "...
  • Page 38 " Set the X axis to zero pressing the ENTER key; " then, select the semi- automatic machining cycle; " Operate the spindle motor rotation by setting the disc speed switch on “1”. Use and maintenance manual COBRA 352 NC- EVO 4- 8...
  • Page 39 " Set the head lowering speed by the suitable potentiometer according to the cut type;Set the head lowering speed by the suitable potentiometer according to the cut type; " press the START key to start the cycle. Machine installation 4- 9...
  • Page 40 The sawing machine is now ready to start the work for which it was designed. Chapter 5 provides a detailed description of the various functions of the machine and its operating cycles. Use and maintenance manual COBRA 352 NC- EVO 4- 10...

  • Page 41: Description Of Machine Operation

    The control panel swivels on two articulated joints so that it can be positioned by the operator for greater ease of use and safety. The control console for the COBRA 352 NC- EVO is illustrated below.
  • Page 42 (combined with the keys SET- UP and CHECK). Key for scrolling forwards in diagnostic Command for opening/closing feed vice mode Key for scrolling backwards in diagnosis Not used mode Use and maintenance manual COBRA 352 NC- EVO 5- 2...
  • Page 43 Manual cutting head down command Forward head limit switch storage key Manual cutting head up command Backward head limit switch storage key Selection key for min. lubrication Selection key for the manual operation (optional) mode of the chip ejector SET- UP key to enter the machine CHECK key to enter the machine settings (combined with the key ON).

  • Page 44: Key For Control Console Keyboard

    MOBILE START - EMERGENCY DEVICE. The machine is equipped with a remote control device which controls start- up of the semi- automatic cycle by the foot pedal and emergency shut- down by the red mushroom head button. Use and maintenance manual COBRA 352 NC- EVO 5- 4...

  • Page 45: Basic Instructions For Carrying Out A Cutting Operation Cycle

    Basic instructions for carrying out a cutting operation cycle Manoeuvring the cutting head In the COBRA 352 NC- EVO model, it is possible to move the cutting head with the HPS (Head Positioning System) up and down buttons, shown in the key of the control panel in this chapter.

  • Page 46: Width Of Cut

    " that the speed selected is right for the kind of piece to be cut; " that the lubricating coolant level is sufficient and that the delivery by the nebulizer is suitable; " that all protections are in place and correctly locked. Use and maintenance manual COBRA 352 NC- EVO 5- 6...

  • Page 47: Starting Up The Machine

    Starting up the machine The presentation and start- up display appears when the machine is switched on. Press ON and RESET to continue. The display proposes the ZERO- SETTING operation: " press ENTER to start the operation. All the controls are disabled during zero- setting with the exception of the EMERGENCY STOP pushbutton.
  • Page 48 TT = Total working time of the sawing machine CURR. MAX = Max. current absorption of the sawing machine DS = Disc rotation speed F = Head lowering speed CM = Blade motor max. absorption Use and maintenance manual COBRA 352 NC- EVO 5- 8...

  • Page 49: Semi- Automatic Operating Cycle

    Semi- automatic operating cycle " Press the key indicated in the figure to enter the SEMIAUTOMATIC working mode. " The display will show the screen for the SEMI- AUTOMATIC cycle. SEMIAUTOMAT: READY CUT NO. 250.0 X= 0 Y= 0 5- 9...

  • Page 50: Clamping The Work Piece In The Vice

    6 mm. Use and maintenance manual COBRA 352 NC- EVO 5- 10...
  • Page 51 Cutting stroke adjustment " Once the workpiece is locked in position, the cutting stroke must be adjusted. When the head down button is pressed, the cutting head is automatically lowered. " Keep the button pressed until the disk is at 5/10 mm from the material to be cut.

  • Page 52: Preparing To Cut

    Now the blade starts, the cutting cylinder is under pressure and the lubricant/coolant supply starts. In this phase, pressing the head dowstroke button, the RHL spot is deleted. N.B. Use and maintenance manual COBRA 352 NC- EVO 5- 12...
  • Page 53 " When the machine arrives at the end of the cut it is necessary to memorize the FHL position, by pressing the relative button; " when the machine reaches the position to start cutting again, the symbol to indicate the RHL upstroke limit will re- appear on the display. SEMIAUTOMAT: READY PGR ME.

  • Page 54: Automatic Operating Cycle

    These will remain in the memory until they are replaced by further cuts carried out using the same programme, or until they are zero set or modified by a new programme. BT = Not used Use and maintenance manual COBRA 352 NC- EVO 5- 14...
  • Page 55 Inserting and locking the workpiece Initially the machine could be configured in any way, therefore the first series of operations to be carried out is to set the machine for the material to be cut. " Bring the cutting head to the upstroke limit, using the manual head lift button;...
  • Page 56 CUT No= NUMBER OF PIECES TO BE CUT PER MEASURE: set this value using the numeric keys in relation to the PGR. N. and MEASURE set. Use and maintenance manual COBRA 352 NC- EVO 5- 16...
  • Page 57 " Press the RUN/PROG key to go to the programming menu: 1 =PROGRAMS 2 =SEQUENCES 3 =CUTTING CYCLE 4 =VARIOUS " press the key 4 to go to the cutting cycle menu: 1=SINGLE PROGRAM 2=SINGLE CYCLE 3=CONT. CYCLE 4=STEP " press the key 1 to set the single program, then press ⇑ to return to the programming menu.
  • Page 58 At the cut programming end, press the key ⇑ twice to return to the working video page. Now the programming of a single working program is completed. At the programming end, before STARTING the working cycle, press the keys: N.B. CLEAR. Use and maintenance manual COBRA 352 NC- EVO 5- 18...
  • Page 59 Multiple programming Further, it is possible to set a sequence of programs to be made by the sawing machine as described here below. " Press the RUN/PROG key in the working video page to access the programming menu. After having set a certain number of programs with the previously described procedure, press the key 3 to set the running mode of the stored programs: 1=SINGLE PROGRAM...
  • Page 60 " Press the key ⇑ to return to the programming menu. " Press 2 to change the settings of the time for the opening/closing of the feeding vices, cutting vices and of the vertical vices (optional): Use and maintenance manual COBRA 352 NC- EVO 5- 20...
  • Page 61 CUT V.OP.T. =2.0 CUT V.CL.T. =2.0 FEED V.OP.T.=2.0 FEED V.CL.T.=2.0 " Press 3 to change the settings of the function ”BAR CUTTED PIECE DI- STANCE” used to set a value in mm to be made by the feeder to remove the just cut material from the cutting area: BAR CUTTED PIECE DI= "...
  • Page 62 In this phase, pressing the head dowstroke button, the FHL spot is deleted. N.B. Use and maintenance manual COBRA 352 NC- EVO 5- 22...
  • Page 63 " When the machine arrives at the end of the cut it is necessary to memorize the FHL position, by pressing the relative button; " once the FHL memorising button has been pressed, the display will show the symbol confirming memorisation. AUTOMATIC: READY PGR ME.
  • Page 64 Press START to continue from the point of the sawing machine stop or RESET to cancel the cut being performed by the sawing machine and to pass to the next cut. The sawing machine does not count the non- ended cut. Use and maintenance manual COBRA 352 NC- EVO 5- 24...

  • Page 65: Angled Cuts

    Angled cuts The machine can make angled cuts from 45° left to 45° right. Reference stops are mounted on the sides of the turntable to facilitate rapid 0° , 45° cuts to the left and 45° cuts to the right. Angled cuts 45°...
  • Page 66 " Loosen the HH screws on the head rocker arm; " bend the head leftwards will reaching the indicated sloping on the rocker arm support; " tighten the HH screws and cut. Use and maintenance manual COBRA 352 NC- EVO 5- 26...

  • Page 67: Diagrams, Exploded Views And Replacement Parts

    Diagrams, exploded views and replacement parts This chapter contains functional diagrams and exploded views of the COBRA 352 NC- EVO. This document is intended to help in identifying the location of the various components making up the machine, giving information useful in carrying out repair and maintenance operations;...
  • Page 68 MEP S.p.A. Use and maintenance manual COBRA 352 NC- EVO 6- 2...
  • Page 69 Diagrams, exploded views and 6- 3...
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  • Page 71 Diagrams, exploded views and 6- 5...
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  • Page 73 Diagrams, exploded views and 6- 7...
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  • Page 75 Diagrams, exploded views and 6- 9...
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  • Page 77 Diagrams, exploded views and 6- 11...
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  • Page 79 Diagrams, exploded views and 6- 13...
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  • Page 81 Diagrams, exploded views and 6- 15...
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  • Page 83 Diagrams, exploded views and 6- 17...
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  • Page 85 Diagrams, exploded views and 6- 19...
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  • Page 87 Diagrams, exploded views and 6- 21...
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  • Page 89 Diagrams, exploded views and 6- 23...
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  • Page 91 Diagrams, exploded views and 6- 25...
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  • Page 93 Diagrams, exploded views and 6- 27...
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  • Page 95 Diagrams, exploded views and 6- 29...
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  • Page 97 Diagrams, exploded views and 6- 31...
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  • Page 99 Diagrams, exploded views and 6- 33...
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  • Page 101 Diagrams, exploded views and 6- 35...
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  • Page 103 Diagrams, exploded views and 6- 37...
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  • Page 105 Diagrams, exploded views and 6- 39...
  • Page 106 MEP S.p.A. Use and maintenance manual COBRA 352 NC- EVO 6- 40...
  • Page 107 Diagrams, exploded views and 6- 41...
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  • Page 109 Diagrams, exploded views and 6- 43...
  • Page 110 MEP S.p.A. Use and maintenance manual COBRA 352 NC- EVO 6- 44...
  • Page 111 Diagrams, exploded views and 6- 45...

  • Page 112: Pneumatic Diagram (Ma Version)

    MEP S.p.A. Pneumatic diagram (MA version) Use and maintenance manual COBRA 352 NC- EVO 6- 46...
  • Page 113 Diagrams, exploded views and 6- 47...
  • Page 114 MEP S.p.A. Use and maintenance manual COBRA 352 NC- EVO 6- 48...
  • Page 115 Diagrams, exploded views and 6- 49...
  • Page 116 MEP S.p.A. Use and maintenance manual COBRA 352 NC- EVO 6- 50...
  • Page 117 Diagrams, exploded views and 6- 51...

  • Page 118: Iud/Iuv Card

    B - white N - black C - orange R - red G - yellowe S - pink H - grey V - green L - blue Z - purple Use and maintenance manual COBRA 352 NC- EVO 6- 52...

  • Page 119: Mep31

    MEP31 Current variation Blade speed variation Feeding variation M 311 Wire colour- coding A - light blue M - brown B - white N - black C - orange R - red G - yellowe S - pink H - grey V - green L - blue Z - purple...

  • Page 120: Aps/P Drive For Step Motors

    I max: Maximum value for the phase current. I min: Minimum value for the phase current. I step: Difference between the settable current values. Operating temperature: Forced ventilation is necessary for currents exceeding Use and maintenance manual COBRA 352 NC- EVO 6- 54...

  • Page 121: Schematic Configuration Of Inputs / Outputs

    SCHEMATIC CONFIGURATION OF INPUTS / OUTPUTS INPUTS SELECTION +15V COM OPTO IN J2- 18 2.2K DISABLE J2- 17 2.2K J2- 16 2.2K J2- 15 DRIVE LOGIC 2.2K J2- 14 COM OPTO OUT J2- 12 OUT1 J2- 11 OUT2 J2- 10 Diagrams, exploded views and 6- 55...

  • Page 122: Layout Of Aps/P Drive Components

    MEP S.p.A. LAYOUT OF APS/P DRIVE COMPONENTS Use and maintenance manual COBRA 352 NC- EVO 6- 56...

  • Page 123: Exploded Views

    MEP S.p.A. Exploded views This part of the manual contains detailed exploded views of the machine which can help to gain a deeper knowledge of how it is made. Head unit Use and maintenance manual COBRA 352 NC- EVO 6- 58...
  • Page 124 Code Description U. of M. Quantity 001.1503 FLANGIA ESTERNA 1,000 001.1912 COPERCHIO SNODO TESTA 2,000 001.1913 BILANCIERE 1,000 007.1602 ASTA COMANDO MANUALE 1,000 007.1902 DISTANZIALE CUSCINETTO ESTERNO 1,000 007.1903 DISTANZIALE CUSCINETTO INTERNO 1,000 007.1904 DISTANZIALE PULEGGIA 1,000 007.2351 PERNO SUPPORTO SNODO TESTA 1,000 010.0404 DADO ESAGONALE MM.25 P.

  • Page 125: Motor Unit

    MEP S.p.A. Motor unit Use and maintenance manual COBRA 352 NC- EVO 6- 60...
  • Page 126 Code Description U. of M. Quantity 001.1906 PIANA MOTORE 1,000 010.7122 CHIAVETTA 8 X 8 X 32 1,000 010.7204 DADO M8 1,000 010.7481 GRANO VCE PUNTA PIANA 8 X 35 1,000 010.7604 RONDELLA DIAM. 8 6,000 010.7625 RONDELLA DIAM. 8 X 32 3,000 010.7671 RONDELLA SPESSORE DIAM.

  • Page 127: Vice

    MEP S.p.A. Vice Use and maintenance manual COBRA 352 NC- EVO 6- 62...
  • Page 128 Code Description U. of M. Quantity 001.1914 SQUADRO-MORSA-CB350 001.3709 STAFFA-BLOCCAGGIO-CILINDRO 007.2162 GANASCIA-MORSA-CB350 007.2165 SUP-GANASCIA-MORSA-CB349-350 007.2166 SUP-CAN-MORSA-CB350-SX-AX-CNC 007.2171 SUPPORTO DX CANNOTTO MORSA CBSX-AX-CNC 007.2169 PERNO-BLOCC-GANASCIA-CB350 007.2371 GANASCIA-FISSA-SUPP50X8CB 007.2372 GANASCIA-MOBILE-SUPP50X8CB 007.2511 SUPPORTO-CIL-SUPPLEMENT-CB352 007.3234 BOCC-GAN-CIL-SUPPL 010.0303 VITE-TQ-22X22M12X95CB350 010.7410 M8X16-VCEI-PR 010.7456 M8X16-VCEI-PC 010.7460 M8X12-VCEI-PC 010.7606 ROSETTA-13X24 010.7766...

  • Page 129: Head Pivot Support

    MEP S.p.A. Head pivot support Use and maintenance manual COBRA 352 NC- EVO 6- 64...
  • Page 130 Code Description U. of M. Quantity 001.1904 SUPPORTO PIANO GIREVOLE 1,000 001.1905 SUPPORTO SNODO TESTA 1,000 001.2102 STAFFA ATTACCO FORCELLA 1,000 004.0502 PROTEZIONE FISSA 1,000 007.2353 VITE ESAGONO SNODO TESTA 1,000 007.2363 PERNO ANTIROT.TESTA E BLOCC.P. 1,000 010.1201 VITERIA E BULLONERIA 1,000 010.7205 DADO M10...

  • Page 131: Tourntable

    MEP S.p.A. Tourntable Use and maintenance manual COBRA 352 NC- EVO 6- 66...
  • Page 132 Code Description U. of M. Quantity 001.1907 PIANO GIREVOLE CB 350 N.T. 1,000 001.1908 BASAMENTO CB 350 N.T. 1,000 007.2356 ECCENTRICO PUNTO FISSO 1,000 007.2359 PERNO PUNTO FISSO CB 350 N.T. 1,000 007.2362 PERNO BLOCCAGGIO PIANO GIREVOL 1,000 007.2366 PIASTRA PIANO GIREVOLE CB 350 1,000 007.4534 PERNO DI CENTRO...

  • Page 133: Blade Guard Unit

    MEP S.p.A. Blade guard unit Use and maintenance manual COBRA 352 NC- EVO 6- 68...
  • Page 134 Code Description U. of M. Quantity 004.0503 SUPPORTO ASTA PROTEZIONE 1,000 005.2050 COPERCHIETTO FORO RUBINETTO 1,000 005.2102 PROTEZIONE DISCO 1,000 005.2103 CARTER DISCO 1,000 010.7013 ANELLO SEEGER DIAM. 62 1,000 010.7031 RING SK 8 1,000 010.7603 RONDELLA DIAM. 6 2,000 010.7852 VITE TCEI 4 X 12 4,000...

  • Page 135: Base Vice

    MEP S.p.A. Base vice Use and maintenance manual COBRA 352 NC- EVO 6- 70...
  • Page 136 Code Description U. of M. Quantity 007.2168 SUPPORTO- BLOC- CART- ALI- CBAX- CNC 1.000 007.2172 BUSSOLA- CB349- 350D 1.000 007.2173 PERNO- BLOCCAGGIO- CB349- 350D 1.000 007.2174 GHIERA- DI- SPALL- CB349- 350D 1.000 007.2179 GRUPPO- SBLOC- TESTA- CB350 1.000 007.2179 GRUPPO- SBLOC- TESTA- CB350PRT2 1.000 010.0902 MOLLA- PUNTO- FISSO- TESTA- MOD95...

  • Page 137: Control Panel Unit

    MEP S.p.A. Control panel unit Use and maintenance manual COBRA 352 NC- EVO 6- 72...
  • Page 138 Code Description U. of M. Quantity 010.8151 DADO- M50- QUADRO- COMANDI 1.000 016.0623 SUPP- SNODO- QUACOM- TI- CB- NC 1.000 016.0718 QUACOM- NC- EVO 1.000 016.2652 ASTA- VERT- QUACOM- CB352- NC 1.000 016.2653 QUACOM- ORIZZ- TI- CB- NC 1.000 022.0209 PG- 29- KIEPE 1.000 022.0247...

  • Page 139: Feeder

    MEP S.p.A. Feeder Use and maintenance manual COBRA 352 NC- EVO 6- 74...
  • Page 140 Code Description U. of Quantity 001.3121 CHIOCCIOLAALIMENTATORE 001.3124 MORSA ALIMENTATORE 001.3125 CARRELLO ALIMENTATORE 007.2512 SUPPORTO MORSA ALIMENTATORE 007.2531 GANASCIA FIX ALIMENTATORE 007.2532 GANASCIA MOB ALIMENTATORE 007.3351 PIASTRA FIX SCORREVOLE 007.3916 TASSELLO FIX RULLO SUPPLEMENTARE 010.0252 VITE MORSA ALIMENTATORE 010.0441 GRANO M8X12 010.0785 RULLO ALIM DIAM30 220MM 010.0927...

  • Page 141: Supply Roller Unit

    MEP S.p.A. Supply roller unit Use and maintenance manual COBRA 352 NC- EVO 6- 76...
  • Page 142 Code Description U. of Quantity 001.3126 STAFFA ANTERIORE ALIMENTATORE 001.3127 STAFFA POSTERIORE ALIMENTATORE 001.3128 SUPPORTO SCORREVOLE ALIMENTATORE 007.6476 MANICOTTO VITE RICIRCOLO 010.0380 GHIERA FIX VITE ALIMENTATORE 010.0785 RULLO ALIMENTATORE DIAM30 220MM 010.1666 PERNO RULLO ALIMENTATORE 010.3013 VITE A RICIRCOLO 010.3058 GUIDA CARRELLO ALIMENTATORE 010.3132 SUPPORTO MOTORE P_P ALIMENTATORE...

  • Page 143: Cylinders

    MEP S.p.A. Cylinders Use and maintenance manual COBRA 352 NC- EVO 6- 78...
  • Page 144 Code Description U. of Quantity 001.2101 STAFFA SOSTEGNO GRUPPO PNEUMATICO CB 350 022.0046 POTENZIOMETRO 6639S- 001- 202 SH SX 010.1103 FORCELLA 16 X 1,5 007.2505 PROLUNGA FORCELLA SH 280- CB 350 044.1257 VALVOLA CARICO CILINDRO TI- CB CNC 043.5771 KIT COMPENSATORE UL 63- 80 025.0876 GIUNTO WA 6- 6 MM.28 X CILINDRO 043.5681...

  • Page 146: Adjustments

    Adjustments This chapter describes the adjustment operations of the electronic, mechanic and pneumatic systems. These indications will help you to customize your machine for the cut to be executed, thus improving operations. Displaying and editing the set- up parameters The machine set- up parameters may be programmed directly from the control console.

  • Page 147: Set Parameter For Machine Type

    " Then, press ENTER to confirm and go to the next parameter, or press in sequence and simultaneously the SET- UP and ON keys to exit the setup. Chapter 6 contains the tables which illustrate the allowable configurations of N.B. the driver. Use and maintenance manual COBRA 352 NC- EVO 7- 2...
  • Page 148 " To change the max. feeding value and the beyond- zero value (namely the excess measurement covering the carriage inertial movement, due to its weight at the stop) enter the correct value. * X AXIS: MAX LENGTH = 500.0 BEYOND ZERO = PAGE 5/46 "...
  • Page 149 PAGE 11/46 " Then, press ENTER to confirm and go to the next parameter, or press in sequence and simultaneously the SET- UP and ON keys to exit the setup. Use and maintenance manual COBRA 352 NC- EVO 7- 4...

  • Page 150: Setting Of The Head Lifting And Lowering Speed

    Setting of the head lifting and lowering speed " To set the head lifting/lowering speed set the wished values, considering that the HHC (head- holding cylinder) RHLS (rear head limit switch) speed relates to the head lifting; the manual HHC speed relates to the head movement operated by the control board (Y+, Y- );...
  • Page 151 This function is not included for this machine model. Thus, do not consider this video page and go to the next one by the ENTER key. * OPTIONAL INVERTER: ABS ENC: PAGE 27/46 Use and maintenance manual COBRA 352 NC- EVO 7- 6...

  • Page 152: Cutting Vice And Feeder Setting

    " Press 4 to activate or deactivate the ”CLEAN CUT” function that moves the bar away from the cutting vertical line, to prevent any contact between the band and the material when the blade is lifted and to activate or deactivate the function ”BAR-PIECE TO BE CUT CLEARANCE”...

  • Page 153: Set Timings

    This function is not included for this machine model. Thus, do not consider this video page and go to the next one by the ENTER key. BLADE TENSION: MIN. = MAX. = 0000 PAGE 37/46 Use and maintenance manual COBRA 352 NC- EVO 7- 8...

  • Page 154: Head Stroke Limit (Fhls - Rhls) Setting

    FHLS (backward limit 275÷300) and at RHLS (forward limit 008÷012). Two adjustments are performed to obtain this result: one on the cutting head cylinder and the other on the IUD/IUV layout of the MEP 32 controller. Operation sequences: RHL/FHL LIMITS: HEAD POSIT.
  • Page 155 " Remove the box protecting the potentiometer, taking care not to tug at the connection cables. " Using an Allen key, slacken the grub screws fixing the rod and free the potentiometer body. Use and maintenance manual COBRA 352 NC- EVO 7- 10...
  • Page 156 " Open the control board removing the frame and pull the keyboard out of the console; " Identify the board IUD/IUV of the controller MEP 32 to adjust the potentiometer indicated by the arrow in the following image: " The IUD/IUV board includes three adjacent potentiometers. Adjust the adjustment screw of the potentiometer indicated by the arrow by a screw- driver at a value of 275÷300;...

  • Page 157: It Sets The Time For Laser And Cutting Light Switching On (Optional)

    This is very important since the operator must be able to clearly read the display messages at all times. Use and maintenance manual COBRA 352 NC- EVO 7- 12...
  • Page 158 " To adjust the brightness, first remove the screws fixing the front console panel. The photo below illustrates the MEP 32 controller card on which the brightness potentiometer is marked by an arrow. " Using a screwdriver, rotate the potentiometer until the required display brightness is obtained.

  • Page 159: Air Treatment Unit

    When the oil level in the compensator tank falls it must be topped up. The figure below illustrates the various components of the cutting head cylinder. Oil filler cap Compensator tank Use and maintenance manual COBRA 352 NC- EVO 7- 14...
  • Page 160 A drop in oil level is identified by the position of the ring on the rod in relation to the oil reservoir, which in normal conditions should be approximately 20 mm. If this is not the case, top up the oil level as follows: "...

  • Page 161: Shearing Vices

    " loosen the lock dowel of the movable jaws positioned outside the jaws supporting block; " lift the block till getting the clearance necessary for tightening the material, then lock the obtained position tightening the two dowels. Use and maintenance manual COBRA 352 NC- EVO 7- 16...

  • Page 162: Disc

    Disc Circular saws with hard metal teeth for cutting non- ferrous metals offer all the advantages provided by metal carbides used as cutting tools. Their enormous wear resistance allows for high cutting speeds and a long lifetime. This leads to a big increase in the quantity of swarf removed per unit time and a consequent increase in efficiency.
  • Page 163 " position the goniometer or the square against the fixed vice jaw adjacent to Use and maintenance manual COBRA 352 NC- EVO 7- 18...
  • Page 164 the disc shaft flange; " loosen the turntable locking handwheel M10; " remove the eccentric locking pin knob; " slacken the grub screw. If the right angle error is now small (about 1 degree), turn the eccentric pin until the error is corrected. If instead the error is greater than 1 degree proceed as follows: "...
  • Page 165 " in this position you can adjust the depth of the screw that acts as a stop for the turntable until the angle error is corrected; " tighten the nut, while keeping the stop screw steady. Use and maintenance manual COBRA 352 NC- EVO 7- 20...

  • Page 166: Adjustment Of The Perpendicularity To The Cutting Plane

    Repeat the operations for both the 45° right and the 45° left positions. Now check the values given on the graduated scale engraved on the turntable at the positions 0° and 45° right and left. Adjustment of the perpendicularity to the cutting plane The perpendicularity of the blade to the work surface is of fundamental importance in obtaining straight cuts.

  • Page 168: Maintenance And Choice Of Consumables

    COBRA 352 NC- EVO is built to be sturdy and long- lasting It has no need of any special maintenance, though, like all other tools, it needs adjusting from time to time, especially if not regularly looked over or used without due care.

  • Page 169: Maintenance Requirements

    All ordinary and extraordinary maintenance must be carried out with the power switched off and the machine in emergency condition. To guarantee perfect operation, all spare parts must be MEP S.p.A originals. On completion of maintenance works, ensure that the replaced parts or any tools used have been removed from the machine before starting it up.

  • Page 170: Maintenance Of Working Parts

    7; " check the tension and wear of the transmission belts. Maintenance of working parts During maintenance work on the COBRA 352 NC- EVO, special attention should be paid to operating units such as the transmission belts. Transmission belts Tightening the belts: "...

  • Page 171: Oils For Lubrication/Coolant Liquid

    The used oil type for the optional spray mist system is BLASER Vascomill 22. The following oils can also be said to have similar characteristics and are therefore compatible: UNIST Coolube 2210 - FUCHS Plantocut Micro Plus 27 - tank capacity Lt. 1 Use and maintenance manual COBRA 352 NC- EVO 8- 4...

  • Page 172: Cutting Speed And Choice Of Tools

    2nd speed = 3400 rpm Choice of blade The different types of cutter disks that the COBRA 352 NC- EVO can mount must, however, have the following main characteristics. Fine tooth pitch: for thin wall materials such as sheet steel, tubes and profiles;...

  • Page 173: Types Of Swarf

    Types of swarf: Very fine or fragmented swarf indicates that the downstroke speed and/or cutting pressure is too low. Thick and/or blue swarf indicates that the blade is overloaded. Use and maintenance manual COBRA 352 NC- EVO 9- 2...

  • Page 174: Cutting And Feeding Speed

    Long coils of swarf indicate ideal cutting conditions. Cutting and feeding speed The cutting speed, in m/min, and the head feeding speed, in cm /min, are limited by the amount of heat generated near to the points of the teeth. If the head feeding speed is too high, the cut will not be straight in either the vertical or the horizontal plane.

  • Page 175: Types Of Blades

    MEP S.p.A. Types of blades The blades fitted to the COBRA 352 NC- EVO have dimensions 350 x 32 x 3.4 mm and are of HM hard steel type since the machine is to be used for cutting non- ferrous materials. In addition to the size and pitch of the teeth, however,...
  • Page 176 The COBRA 352 NC- EVO uses discs with positive cutting angles for cutting solid materials and with negative cutting angles for cutting hollow profiles. This is...
  • Page 177 Whine reduction feature Expansion cut Use and maintenance manual COBRA 352 NC- EVO 9- 6...
  • Page 178 This table can be used to facilitate the choice of toothing since it takes into account both the size of the material to be cut and the diameter of the disc to be used. D 200 Cutting section (in mm) Aluminium and alloys R = 200- 400 N/mmq Aluminium and alloys...

  • Page 179: Blade Selection Table With Respect To Cutting Speed And Downstroke Speed

    MEP S.p.A. Blade selection table with respect to cutting speed and downstroke speed Use and maintenance manual COBRA 352 NC- EVO 9- 8...

  • Page 180: Troubleshooting

    Troubleshooting This chapter describes the inspection and troubleshooting procedures for the COBRA 352 NC- EVO. Regular inspections and efficient maintenance are essential to ensure your machine gives you a long, trouble- free service life. The chapter is divided into two sections: the first being dedicated specifically to...
  • Page 181 ' Insufficient coolant .Check the coolant level and clean piping and nozzles. ' Incorrect fluid concentration .Check and use the correct concentration. Use and maintenance manual COBRA 352 NC- EVO 10- 2...
  • Page 182 PROBLEM PROBABLE CAUSE SOLUTION Rapid tooth wear ' Material defective .The materials may present altered zones either on the surface, such as oxides or sand, or in section, such as under- cooled inclusions. These zones, which are much harder than the blade, cause the teeth to break: discard or clean these materials.

  • Page 183: Troubleshooting

    " press simultaneously and in sequence the keys CHECK and ON; After entering the diagnostics, the display shows several characters, each one relating to an INPUT or OUTPUT signal of the MEP 31 and MEP 32 cards. The back- up documentation for this operation on the machine is wiring and electronic diagrams shown in chapt.

  • Page 184: Digital Inputs

    key for the manual cycle (HAND key), the figure 12 is displayed next to the letter ”K”: DIGITAL INPUTS: 0123456789AB R E Button id. number C: 110000101010 0 0 E: 01000000 KEY: 12 if the figure KEY does not change pressing the key HAND, the probable malfunctioning is due to the console key that does not deliver power when closed.
  • Page 185 ANALOGIC INPUTS AN1 AN2 AN3 AN4 M32 console Not used Blade motor current Not used Cutting head position Not used Not used Not used M31 expansion Use and maintenance manual COBRA 352 NC- EVO 10- 6...
  • Page 186 Digital OUTPUT list " Starting from the video page of the encoder inputs, press the key ”arrow up” once to display the list of the analog inputs: DIGITAL OUTPUTS C: 0000000000000000 Star center Not used 2nd speed Cutting vice open/close 1st speed Not used Flashing indicator...

  • Page 187: Machine Alarms And Emergencies

    TWO OR MORE COMMANDS PRESS RESET It is displayed when an operation not allowed in COMMAND DISABLED that machining or in that machining parameter setting is required to the sawing machine. PRESS RESET Use and maintenance manual COBRA 352 NC- EVO 10- 8...
  • Page 188 This message is displayed if the head is not RHLS positioned at the position when the cycle is COMMAND DISABLED STARTED. HEAD NOT AT RHLS " Return the head to the RHLS position PRESS RESET before resuming the cycle It is displayed when a machining cycle is started automatically without having initialized the machine COMMAND DISABLED with the zero- setting of the feeder carriage.
  • Page 189 PRESS RESET consent to feed again the cutting material. Check the RHLS point. This video page is displayed when the connection between console and CPU fails. EMERGENCY COMMUNICATION INTERRUPTED PRESS RESET Use and maintenance manual COBRA 352 NC- EVO 10- 10...
  • Page 190 This message is displayed if the cycle is STARTED without having first selected the cutting speed. SELECT SPEED " Return the head to the RHLS position before resuming the cycle PRESS RESEt RESETS OR INTERRUPTS NOT JUSTIFIABLE EMERGENCY ERROR NOT RECOV. CODE: 01 PRESS RESET EEPROM NOT AVAILABLE...
  • Page 191 ERROR NOT RECOV. CODE: 91 PRESS RESET SHS DRIVER OVERTEMPERATURE EMERGENCY ERROR NOT RECOV. CODE: 92 PRESS RESET SHS PHASE SHORT CIRCUIT EMERGENCY ERROR NOT RECOV. CODE: 93 PRESS RESET Use and maintenance manual COBRA 352 NC- EVO 10- 12...
  • Page 192 INCONSISTENT ZERO AXIS MICRO EMERGENCY ERROR NOT RECOV. CODE: 94 PRESS RESET ZERO AXIS MICRO ALWAYS ON EMERGENCY ERROR NOT RECOV. CODE: 95 PRESS RESET ZERO AXIS MICRO ALWAYS OFF EMERGENCY ERROR NOT RECOV. CODE: 96 PRESS RESET MICRO BEYOND ZERO EMERGENCY ERROR NOT RECOV.

  • Page 194: Accessory Installation

    Accessory Installation This chapter provides a list of the available accessories that can be fitted to this machine, along with assembly instructions. Circular blade The machine fits: circular blade HM Ø 350x32x3,4 for profiles (negative rake). piła tarczowa HM Ø 350 x 32 x 3,4 do elementów pełnych i profili (ujemny kąt natarcia).
  • Page 195 To install the roller loading platform on the discharge side an adapter must be used, with or without a support, as explained in the paragraphs that follow. Use and maintenance manual COBRA 352 NC- EVO 11- 2...

  • Page 196: Adattatore Pianale A Rulli Lato Scarico

    stół rolkowy K40 po stronie wyładunkowej 3000 mm; stół rolkowy K40 po stronie wyładunkowej 4500 mm; stół rolkowy K40 po stronie wyładunkowej 6000 mm. Aby można było zamontować stoły rolkowe po stronie załadunkowej, maszyna jest wyposażona w ramię wspierające, na którym układa się końcówkę stołu rolkowego, mocowaną...

  • Page 197: Chip Aspirator

    " connect the aspirator hose to the chip conveyor projecting from the band cover fastening it with a metal strip; " to use it while cutting, switch it on before starting the machining. Use and maintenance manual COBRA 352 NC- EVO 11- 4...

  • Page 198: Minimal Lubrication System

    The chip aspirator is an optional that can be used only when connected with N.B. the sawing machine. If the chip aspirator is connected, it becomes an integral part of the machine and is thus included in the conformity self-certification (EC declaration) of the sawing machine.
  • Page 199 Mep spa guarantees that the sold product is free from defects making it unsuitable for its intended use or significantly decreasing its value. The guarantee shall not apply if the buyer was aware of defects in the product when buying it or if defects were clearly recognizable.

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