Nidek Medical LEX-DRILL User manual

AUTO DRILLING UNIT
Model
December 2007
Pages in total: 94
LHM2A*RDA001A/E
SERVICE MANUAL

NIDEK CO., LTD. : 34-14, Maehama, Hiroishi-cho, Gamagori, Aichi 443-0038, Japan
(Manufacturer) Telephone: [phone]
Facsimile: (81-533) 67-6610
NIDEK CO., LTD : 3F Sumitomo Fudosan Hongo Bldg., 3-22-5, Hongo,
(Tokyo Office) Bunkyo-Ku, Tokyo 113-0033, Japan
Telephone: [phone]
Facsimile: (81-3) 5844-2642
NIDEK INCORPORATED : 47651 Westinghouse Drive, Fremont, California 94539, U. S. A.
(United States Agent) Telephone: [phone]
Facsimile: [phone]
NIDEK SOCIETE ANONYME : Europarc 13, rue Auguste Perret, 94042 CRETEIL, France
(EU Authorized Representative) Telephone: [phone]
Facsimile: (01) 49 80 32 08

I
Table of Contents
§1 INTRODUCTION .............................................................................. 1-1
§2 SAFETY PRECAUTIONS.................................................................2-1
§3 PRODUCT OUTLINE .......................................................................3-1
3.1 Quality Standard...................................................................................................... 3-1
3.2 Configuration ........................................................................................................... 3-2
3.3 Labels ...................................................................................................................... 3-5
3.4 Assembly Component Layout ................................................................................. 3-8
3.5 Electrical Component Layout .................................................................................. 3-9
3.6 Replacement Parts.................................................................................................3-11
§ 4 TROUBLESHOOTING .....................................................................4-1
§ 5 REMOVING PROCEDURES ............................................................ 5-1
5.1 Prior to Removal Work ........................................................................................... 5-1
5.2 Abbreviations for Screws ........................................................................................ 5-1
5.3 Covers ..................................................................................................................... 5-2
§6 REPLACEMENT PROCEDURES ....................................................6-1
6.1 Base ASSY. ............................................................................................................. 6-1
6.2 Processing Unit ASSY. ............................................................................................ 6-2
6.3 Drill Motor ................................................................................................................ 6-2
6.4 Chuck Arm ASSY. .................................................................................................... 6-3
6.5 Carriage ASSY......................................................................................................... 6-4
6.6 V Axis Motor ASSY. ................................................................................................. 6-5
6.7 V Axis Motor ............................................................................................................ 6-6
6.8 V Axis Carriage ASSY. ............................................................................................ 6-6
6.9 Chuck Motor ASSY. ................................................................................................. 6-7
6.10 Scissors Gear ASSY. ............................................................................................. 6-7
6.11 θAxis Gear ASSY. ................................................................................................. 6-8
6.12 θAxis Motor ASSY. ................................................................................................ 6-8
6.13 θAxis Motor ........................................................................................................... 6-8
6.14 Main Board ............................................................................................................ 6-9
6.15 Carriage Relay Board ........................................................................................... 6-9
6.16 SW Panel Board and Cover Sensor..................................................................... 6-9
6.14 H Axis Motor ........................................................................................................ 6-10
6.18 S Axis Motor ........................................................................................................ 6-10
6.19 Chuck Motor ......................................................................................................... 6-11
6.20 Switching Regulator ............................................................................................. 6-11

II
6.21 Rocker Switch ..................................................................................................... 6-12
6.22 Fuse Holder and Connector RS-232C ............................................................... 6-12
6.23 Fan ...................................................................................................................... 6-12
6.24 H Axis Sensor ...................................................................................................... 6-13
6.25 S Axis Sensor ...................................................................................................... 6-13
6.26 V Axis Sensor ...................................................................................................... 6-14
6.27 θAxis Sensor ...................................................................................................... 6-14
6.28 Chuck SW Sensor .............................................................................................. 6-14
6.29 Chuck Sensor ...................................................................................................... 6-15
§7 ADJUSTMENT .................................................................................7-1
7.1 Preparation for Setting and Adjustment ................................................................. 7-1
7.2 Utility Program ......................................................................................................... 7-3
7.2.1 Writing program (upgrade) ............................................................................ 7-3
7.2.2 Backing up parameter settings...................................................................... 7-5
7.2.3 Restoring parameter settings ........................................................................ 7-6
7.2.4 Copying parameter settings to USB flash drive ............................................ 7-7
7.2.5 Parameter settings ........................................................................................ 7-8
7.2.5.1 Displaying parameter setting screen [Lex 1000] .................................... 7-8
7.2.5.2 Parameter list .......................................................................................... 7-9
7.2.6 Machine test program .................................................................................. 7-10
7.3 Mechanical Parts ................................................................................................... 7-12
7.3.1 Chuck pressure ........................................................................................... 7-12
7.3.2 Rattle adjustment of S axis ......................................................................... 7-15
7.3.3 Rattle adjustment of chuck axis .................................................................. 7-15
7.3.4 Rattle adjustment of H axis ......................................................................... 7-16
7.3.5 Rattle adjustment of V axis ......................................................................... 7-16
7.3.6 Rattle adjustment of θaxis .......................................................................... 7-16
7.4 Calibration ............................................................................................................. 7-18
7.4.1 Shading plate position ................................................................................. 7-18
7.5 Processing............................................................................................................. 7-20
7.5.1 Drill tool angle .............................................................................................. 7-20
7.5.2 Drill axis and drill position ............................................................................ 7-22
7.5.3 Horizontal coordinate offset ........................................................................ 7-24
7.5.4 Vertical coordinate offset and Drill zero point ............................................. 7-26
7.5.5 Front surface offset ..................................................................................... 7-28
7.5.6 Hole depth ................................................................................................... 7-30
7.5.7 Hole diameter .............................................................................................. 7-32
7.5.8 Drill check .................................................................................................... 7-33
§8 SUPPLEMENT .................................................................................8-1
8.1 Wiring Diagram ....................................................................................................... 8-1
8.2 Connector Cable ..................................................................................................... 8-3
8.3 BA01 Board ............................................................................................................. 8-8
8.4 Grease ..................................................................................................................... 8-9
8.5 Grease MSDS ........................................................................................................8-11
8.5.1 NIPPECO LLP .............................................................................................. 8-11
8.5.2 BE-4 ............................................................................................................. 8-13
8.5.3 SHV-2 ........................................................................................................... 8-15

III
8.6 Jigs ........................................................................................................................ 8-17
8.7 Tools ...................................................................................................................... 8-18
8.8 Consumables ........................................................................................................ 8-18

IV
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LHM2A*RDA001A/E
§
1 INTRODUCTION
• This service manual is for the NIDEK AUTO DRILLING UNIT, Lex Drill.
• For correct service, thorough understanding of the contents of this manual is required
prior to the service.
• This manual mainly describes simple measures by part replacement.
• Disassembly or repair must be performed by NIDEK service persons or other qualified
personnel.
• Refer to the operator’s manual, parts list, and installation manual for the Lex Drill.
• Refer to the Service Manual Annex for important changes.
• In case the system cannot be repaired according to the procedures described in this
service manual, please report the serial number of the system, version of the software,
and details of the symptom or symptoms.

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LHM2A*RDA001A/E
§
2 SAFETY PRECAUTIONS
<General precautions>
• Servicing must be performed by NIDEK service persons or other qualified personnel.
• Perform all servicing according to the procedures described in this manual.
Failure to do so may cause unexpected accident or malfunction.
• When performing maintenance work, turn off the power switch and disconnect the power
cord from the wall outlet unless the power needs to be on.
<Maintenance precautions>
• Be sure to remove the drill bit (44101-M381) to prevent injuries during maintenance work
unless it needs to be attached.
• Take antistatic precautions prior to servicing.
• In case of system malfunction, check the symptom and turn off the power .
• Do not drop parts or screws inside the system, nor bump it against surrounding objects.
• Prepare storage cases so as not to lose the removed parts or screws.
• Tighten or loosen screws with proper tools.
• After loosening the screws fixed by a threadlocking adhesive, be sure to reapply the
threadlocking adhesive to the screws when retightening them.
• After replacing parts, confirm that they are fixed in their original positions securely before
turning on the power.
• Should you observe smoke or strange odors being issued from the system, immediately turn
off the power switch, disconnect the power cord from the outlet, and investigate the cause.
If the system is powered in abnormal conditions, fire, electric shock, or total loss of the
system may result.
• Do not perform servicing with wet hands. Doing so could cause electric shock or malfunction.
• See Wiring Diagram and Connecting Cable for checking cable breaks as described in
“TROUBLESHOOTING”. In addition, check cables for the following:
1. Connectors are connected and crimped securely.
2. No contact failure occurs after re-connection of connectors.
3. Cables are soldered properly.
Do not yank the cables with excessive force. Doing so could cause cable breakage.
<Adjustment precautions>
• Perform adjustment on a vibration-free, stable and level surface.
A slanted floor or place subject to vibration will obstruct accurate adjustment.
• Never use the adjustment jigs for purposes other than those intended.
• If jigs necessary for adjustment are not available, return the system without performing
adjustment.

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