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Rohm LVE 125-350 Instruction Manual

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Id. 1158388 EN
RN 1715
1.
2.
Safty instrucions ................................................................................................ 4
3.
Startup operations ........................................................................................... 12
3.1.
3.1.1.
Attachment of chuck size 125-350 .................................................... 12
3.1.2.
Attachment of chuck size 400-1000 .................................................. 12
3.2.
Fixing the distributor ring .......................................................................... 13
3.2.1.
3.2.2.
Stationary fixing of the distributor ring ............................................... 14
4.
Maintenance .................................................................................................... 17
4.1.
Servicing ................................................................................................... 17
4.2.
Disassembly ............................................................................................. 18
4.3.
Cleaning and replacing spare parts .......................................................... 19
4.4.
Assembly .................................................................................................. 20
4.5.
Malfunctions: causes and remedies ......................................................... 21
5.
Controls ........................................................................................................... 22
6.
Spare parts ...................................................................................................... 23
R
G
H, H
ÖHM
MB
LVE Instruction manual
Front-end chuck
LVE 125-350 / LVE 400-1000
air-operated

Table of Contents

Issue date: 10.05.2011
-R
-
. 50, 89567 S
EINRICH
ÖHM
STR
PAGE 1 OF 23
/ B
, GERMANY, T
ONTHEIM
RENZ
. (+49 7325) 16-0
EL

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Summary of Contents for Rohm LVE 125-350

  • Page 1: Table Of Contents

    Id. 1158388 EN RN 1715 LVE Instruction manual Front-end chuck LVE 125-350 / LVE 400-1000 air-operated Table of Contents The LVE front-end chuck with the most important individual parts ....3 Safty instrucions ....................4 Startup operations ................... 12 3.1.

  • Page 2: Preliminary Remark

    Preliminary Remark LVE front-end chuck Preliminary note: 1. This operating manual has been compiled with due considera- tion being given to DIN EN 1550:2008-11 in conjunction with DIN EN ISO 12100:2011-03, DIN EN ISO 23125:2015-04 and associated and relevant standards. Individual explanations of DIN EN 1550:2008-11 and DIN EN ISO 23125:2015-04 are treated in Chapter "General Warn- ings", due to their respective importance.

  • Page 3: The Lve Front-End Chuck With The Most Important Individual Parts

    The LVE with its most important individual parts LVE front-end chuck 1. The LVE front-end chuck with the most important individual parts Item Designation Body Base jaw Piston Protection bush Intermediate disc Piston disc Flange Distributor ring Distributor ring Spacer ring Centering ring Seal Slot nut...

  • Page 4: Safety Instructions

    Safety instructions LVE front-end chuck 2. Safety instructions I. Qualifications of operating personnel Personnel lacking any experience in the handling of clamping fixtures are at particular risk of sustaining injury due to incorrect handling and usage, such injuries emanating in particular from the clamping movements and forces involved during setup work.
  • Page 5 Safety instructions LVE front-end chuck 4. Lubrication The compressed air must be cleaned and enriched approx. every 10 minutes with a drop of machine lubricating oil (for example S 10) or a lubricant which complies HELL ORLINA with ISO designation G CLP DIN 51517-3:2014-02 with viscosity class VG 68 DIN ISO 3448:2010-02 using a conditioning unit.
  • Page 6 Safety instructions LVE front-end chuck machining asymmetrical workpieces using different top jaws or if the clamping equipment has any asymmetries. To compensate for undesirable imbalance and to avoid the damage that it may cause, you must re-establish the symmetrical distribution of the weight. This is the only way to prevent one-sided centrifugal forces affecting the spindle bearings.
  • Page 7 Safety instructions LVE front-end chuck However, the clamping set parts (e.g. top jaws, workpiece supports, face clamping claws etc.) should be designed to be as light as possible. 3. Clamping other/additional workpieces Special clamping sets designed for use with this clamping fixture (jaws, clamping in- serts, locating fixtures, aligning elements, position fixing elements, point centers, etc.) should be used exclusively for clamping those types of workpiece for which they are de- signed and in the manner intended.
  • Page 8 Safety instructions LVE front-end chuck This also applies after long periods of operating pauses (e.g. where machining has been interrupted overnight and only resumed the following morning). 12. Rigidity of the workpiece to be clamped The material to be clamped should possess a rigidity suitable for the clamping force in- volved and should only be minimally compressible if secure workpiece clamping under the machining forces which occur is to be ensured.
  • Page 9 Safety instructions LVE front-end chuck Note: All specified torques must be adhered to with the usual tolerance of the torque wrench of about ± 10%. The following torque table applies for the common sizes M5 - M24 and qualities 8.8, 10.9 and 12.9: Quality M10 M12 M14 M16 M18 M20 M22 M24...

  • Page 10: Environmental Hazards

    Safety instructions LVE front-end chuck 17. Collision Before the clamping device can be used again after a collision, it must be subjected to a specialist and qualified crack test. 18. T-slot nuts If the top jaws are connected to the basic jaws with screws and T-slot nuts, the T-slot nuts may only be replaced by ORIGINAL R T-slot nuts.
  • Page 11 Safety instructions LVE front-end chuck IV. Technical safety requirements relating to force-actuated clamping fixtures The machine spindle should only be started after clamping pressure has built up in the clamping cylinder and clamping has been achieved within the permitted working range. Clamping and unclamping must only be possible when the machine spindle is stationary.

  • Page 12: Startup Operations

    Startup operations LVE front-end chuck 3. Start-up operations Note: When commissioning the full clamping device, great care must be taken that no dirt is allowed to penetrate the pneumatic system of the clamping device. 3.1. Attaching the front end chuck to the machine spindle Preparation: Check the machine spindle head or the processed intermediate flange on the machine for radial and axial run-out (authorised 0.005mm according to DIN 6386 and ISO 3089).

  • Page 13: Fixing The Distributor Ring

    Startup operations LVE front-end chuck 3.2. Fixing the distributor ring The supply of the chuck with compressed air is implemented over the distributor ring. Un- like the remaining component parts of the chuck, it is also shut down in case of rotating spindle.

  • Page 14: Stationary Fixing Of The Distributor Ring

    Startup operations LVE front-end chuck If the plastic segments of the distributor ring wear during the course of time on the upper support position to the chuck body, it can be rotated further by removing the 6 cylinder head screws. The 6 cylinder head screws keep both parts of the distributor ring and plastic segments together.
  • Page 15 Startup operations LVE front-end chuck The axial labyrinth gap between the chuck body and the distributor ring must be 1.5 mm for all front-end chucks. This is the only way of guaranteeing the correct transfer of air from the distributor ring to the chuck body. The height size X of the console results from the sum of distances between the axial side of the spindle box and the axial side of the distributor ring.
  • Page 16 Startup operations LVE front-end chuck The front-end chuck with distributor ring as well as the spacer console is now finally screwed onto the spindle nose. The outer diameter of the distributor ring corre- sponds with the maximum outer chuck diameter. This means that the distributor ring can be precisely aligned and screw connected centrally to the chuck using a ruler.

  • Page 17: Maintenance

    Maintenance, Servicing LVE front-end chuck 4. Maintenance The service condition of the clamping device is decisive when it comes to its functionality, clamping force, precision and service life expectancy. Daily maintenance or every 8 operating hours: In the open position of the chuck, lubricate the conical grease nipples into the base jaws Item 02 in each case with approx.

  • Page 18: Disassembly

    Maintenance, Servicing LVE front-end chuck 4.2. Disassembly 1. Dismantle the chuck from the machine spindle. Refer to the corresponding chapter. Note: The distribution ring Item 08 must not be dismantled and can remain on the casing on the machine spindle. 2.

  • Page 19: Cleaning And Replacing Spare Parts

    Maintenance, Servicing LVE front-end chuck 4.3. Cleaning and replacing spare parts 1. Only if defective: Replace both control valves, Item 17. You are advised to avoid repairs or replacing the sealing rings on the control valves, Item 17, because they are essential and safety relevant components. 2.

  • Page 20: Assembly

    Maintenance, Servicing LVE front-end chuck 4.4. Assembly Caution: Before inserting the individual parts, please check whether all seals are available and undamaged and whether they are in- stalled correctly. All screws are to be tightened with their strength class accord- ing to the tightening torque.

  • Page 21: Malfunctions: Causes And Remedies

    Maintenance, Servicing LVE front-end chuck 12. Lightly oil both control valves Item 17 and insert on the correct side from the front into the hole on the axial surface of the body Item 01 then tighten. Tightening torque approximately 50 Nm. 13.

  • Page 22: Controls

    Controls LVE front-end chuck 5. Controls After mounting the chuck on the machine spindle, this still needs to be connected with the pneu- matic connections on the control unit. For operation of the front end chuck LVE, there are different controls adapted to the respective re- quirements for selection: Pneumatic control unit LSV Type 525-91 Electronic control unit Type 525-60/70/80/90 for automatic impulse safety control with start-...

  • Page 23: Spare Parts

    Spare Parts LVE front-end chuck 6. Spare parts Please note that only ORIGINAL R spare parts or components acquired from suppliers au- ÖHM thorized by R GmbH should be used. R GmbH accepts no liability for injury or damage re- ÖHM ÖHM sulting from the use of components from other manufacturers.

This manual is also suitable for:

Lve 400-1000

Table of Contents