Nakanishi RA-200 User manual

Wrench (8 x 5), (20 x 24)
・・1pc. Each.
Inspection Card・・1pc. Operation Manual・・1set
OPERATION MANUAL
RA - 200
90°Angle Spindle
002OM-K0049E
* The collet is attached to the Spindle.
᳨ᰝᡂ⦼⾲
Inspection Card
ྲྀᢅㄝ󰩣᭩
OPERATION MANUAL
WARNING
1. CAUTIONS FOR HANDLING AND OPERATION
■Read these warnings and cautions carefully and only use in the manner intended.
■These warnings and cautions are intended to avoid potential hazards that could result in personal injury to the
operator or damage to the device. These are classied as follows in accordance with the seriousness of the risk.
①This Spindle is not a hand tool. It is designed to be used on CNC machines or special purpose
machines.
②Do not touch the cutting tool while it is running. It is very dangerous.
③Wear safety glasses, dust mask and use a protective cover around the Spindle whenever the
Spindle is rotating.
④Never connect, disconnect or touch the Power Cord Plug or Motor Cord Plug with wet hands.
This may cause an electric shock.
⑤Never operate or handle the Spindle and brushless motor until you have thoroughly read the
Operation Manuals and safe operation has been conrmed.
1) To prevent injuries / damages, check the Spindle, brushless motor and cutting tool for
proper installation, before operating the Spindle and brushless motor.
2) Before disconnecting the Spindle and brushless motor, always turn the control power off
and turn the compressed air supply to the CONTROLLER off. Then it is safe to remove the
Spindle and brushless motor.
⑥When installing a Spindle to a xed base, make sure the xed base is grounded in order to
avoid the risk of an electric shock.
⑦When installing a tool, tighten the collet correctly and check again the collet before use. Do not
over-tighten the collet. This may cause damage to the Spindle.
⑧Do not use bent, broken, chipped, out of round or sub-standard tools, as this may cause them
to shatter or explode. Tools with fractures or a bent shank will cause injury to the operator.
When using a new tool, rotate it in a low speed and increase speed gradually for safety.
⑨Do not exceed the maximum recommended allowable tool speed. For your safety, use speeds
below the maximum allowable speed.
⑩Do not apply excessive force. This may cause tool slippage, tool damage, injury to the operator
or loss of concentricity and precision.
Thank you for purchasing 90°Angle Spindle " RA - 200 ". This Spindle is designed for drilling on side faces,
or working on corners difcult to work or unt for working with straight type Spindles. The E2530 Control Unit,
Brushless Motor or Air Motor and Air Line Kit with Lubricator combination are required to drive this Spindle. Read
this and all the associated component Operation Manuals carefully before use. Always keep this Operation Manual
in a place where a user can referred to for reference at any time.
Class Degree of Risk
WARNING
A safety hazard could result in bodily injury or damage to the device if the
safety instructions are not properly followed.
CAUTION A hazard that could result in light or moderate bodily injury or damage
to the device if the safety instructions are not followed.
①Do not exceed the maximum allowable motor speed of 20,000min-1 (rpm).
②The speed reducer is always used to connect between the air motor AM - 300 AM - 310 and
RA - 200.
③Do not drop or hit this Spindle, as shock can damage to the internal components.
④Be sure to clean the collet, the inside of the Spindle before replacing the tool. If ground
particles or metal chips stick to the inside of spindle or the collet, damage to the collet or
Spindle can occur due to the loss of precision.
⑤When cleaning a Spindle, stop the motor and remove debris with a soft brush or a cloth. Do
not blow air into the Spindle with compressed air as foreign particles or cutting debris may
get into the ball bearing.
⑥Always clean the tool shank before installing the tool in the Spindle.
⑦ When sizing the correct collet size to the tool shank diameter, a tolerance of +0 〜
-
0.01mm is
strongly recommended.
A tool shank within the +0 〜
-
0.1mm range is mountable, however, this may cause poor
concentricity and or insufcient tool shank gripping force.
⑧Select suitable products or tools for all applications. Do not exceed the capabilities of the
Spindle or tools.
⑨Do not stop the supply cooling air for motor during operation of the machine.
Removing the air pressure from the Spindle causes a loss of purging, allowing the Spindle to
ingest coolant. This will cause damage to the Spindle.
⑩Carefully direct coolant spray to the tool. Do not spray directly on the Spindle body. If large
amount spray directly on the Spindle, it may cause excess load of the motor rotation with loss
of durability to the Spindle.
⑪Stop working immediately when abnormal rotation or unusual vibration are observed.
Immediately, please check the content of section " 13. TROUBLESHOOTING ".
⑫Always check if the tool, collet are damaged before and after operating.
⑬If the collet show signs of wear or damage, replace it before a malfunction or additional
damage occurs.
⑭After installation, repair, initial operation, or long periods of non operation, please refer to
section " 11. BREAK-IN PROCEDURE " detailed in Table. 2. When checking the Spindle, no
vibration or unusual sound should be observed during rotation.
⑮Do not disassemble, modify or attempt to repair this Spindle. Additional damage will occur
to the internal components. Service must be performed by NSK NAKANISHI or an authorized
service center.
⑯When using this Spindle for mass production, please consider the purchase of an additional
Spindle to be used as a back-up in case of emergency.
CAUTION
3. WARRANTY
We provide a limited warranty for our products. We will repair or replace the products if the cause of failure is due to
the following manufactures defects. Please contact us or your local distributor for details.
①Defect in manufacturing.
②Any shortage of components in the package.
③Where damaged components are found when initially opening the package.
(This shall not apply if the damage was caused by the negligence of a customer.)
4. CONTACT US
For your safety and convenience when purchasing our products, we welcome your questions.
If you have any questions about operation, maintenance and repair of the product, please contact us.
Company Name
Business Hours
U.S. Toll Free No.
Telephone No.
Fax No.
Web Address
:
Industrial Div.
: 8:30am to 17:00pm (CST)
(closed Saturday, Sunday and Public Holidays)
: 800-585-4675
: 847-843-7664
: 847-843-7622
: www.nskamericacorp.com
Contact UsContact Us
For U.S. Market
Company Name
Business Hours
Telephone No.
e-mail Address
:
: 8:00am to 17:00pm
(closed Saturday, Sunday and Public Holidays)
: [phone]
: [email protected]
For Other Markets
Spindle・・1pc. Collet ȭ3.0mm (CHS - 3.0) or
ȭ3.175mm (CHS - 3.175 )・・1pc.
*
(For U.S. market ȭ3.175mm
(CHS - 3.175))
Wrench (7 x 5.1)・・1pc.
5.1
7
Table. 1Packing List Contents
2. BASIC PACKAGE
When opening the package, check if it includes all items listed in " Table.1 Packing List Contents ".
In the event of any shortage, please contact either NAKANISHI (see the " 4. CONTACT US " section) or your local dealer.
5. FEATURES
① The Spindle is designed for drilling on side faces, or working on corners difcult to work or unt for working with
straight type Spindles.
②The Spindle housing is made from precision ground, hardened, stainless steel (SUS) with an outside diameter
of ȭ22.8 mm.
③Various sizes of collets are available CHS 0.8mm - 3.0mm. Standard collet is CHS 3.0mm or CHS 3.175mm.
(For U.S. market CHS 3.175mm.)
6 - 1 Specications
6. SPECIFICATIONS AND DIMENSIONS
< Option >
CAUTION
Use less than the maximum allowable motor speed 20,000min-1 (rpm).
DO NOT exceed the maximun allowable motor speed 20,000min-1 (rpm) for the spindle.
Always use the reducer between the air motor (AM - 300 AM - 310) and RA - 200.
6 - 2 Outside View
68.7
(35)
ȭ7.9
ȭ6.9
40
27
15
ȭ17.4
60
(13.3)
28.5
(3)
(3.5)
-0.01
0
ȭ22.8
ȭ14.8
7. CONNECTION OF THE SPINDLE TO THE MOTOR
CAUTION
Make sure your hands and all interlocking parts of the Spindle and motor are clean before
connecting the motor to the Spindle. This is critical in preventing contaminants from entering the
motor or Spindle.
20
20
Turn
Tighten
Transmission Clutch
Align the thread on the front end of the brushless motor /
reducer and the rear of the Spindle, and turn the Spindle
clockwise. If the drive shaft of the brushless motor / reducer
does not engage properly to the drive dog on the spindle,it
may only turn approximately two threads before stopping. DO
NOT FORCE THEM TOGETHER. Loosen the Spindle from the
brushless motor / reducer, rotate the Spindle shaft by hand then
re-try. The drive shaft and the drive dog must be fully engaged.
When fully engaged, secure the brushless motor / reducer and
Spindle using the provided 20mm wrench (Fig. 2) .
Fig. 1
Fig. 2
Model RA - 200
Maximun Motor
Rotation Speed
For Air Motor 30,000min-1 (rpm) In case of using the reducer.
For Brushless Motor 20,000min-1 (rpm)
Maximum
rotating speed
at the tool
For Air Motor 5,100min-1 (rpm) In case of using the reducer.
For Brushless Motor 13,330min-1 (rpm)
Appropriate
Motor
For Air Motor AM - 300R / L, AM - 300RA / LA, AM - 310R / L, AM - 310RA / LA
For Brushless Moto EM25 - 5000 - 4M / 5M / 8M, EM25 - 5000 - J4 / J5 / J8
Reduction Ratio 1 / 1.5
Weight 165g
Noise Level at 1m distance Less than 70dB (A)
Temperature Humidity Atmospheric Pressure
Operation Environment 0 - 40°C MAX.75%
(No condensation)
800 - 1,060hPa
Transportation and Storage
Environment
-10 - 50°C 10 - 85%500 - 1,060hPa
Collet ( CHS - □□ )ȭ0.8mm 〜ȭ3.0mm in 0.1mm increments and ȭ2.35mm, ȭ3.175mm

5.1
8
7
5
Tighten
Loosen
Wrench 5mm
Collet
Tool
Wrench 7mm
8. CHANGING THE TOOL
①Set the provided 7mm wrench on the Spindle.
②Place the provided 5mm wrench on the chuck
and turn it counterclockwise to loosen the collet
and remove the tool.
③Clean the collet, then insert the new tool and
tighten the collet by turning clockwise. Do not
over-tighten.
CAUTION
Do not tighten the collet without inserting a tool or dummy bur as this will result in damage to the
collet.
Fig. 3
Fig. 4
７
5.1
Spindle Shaft
Collet
Loosen
Wrench 7mm
9. REPLACING THE COLLET
①Remove the tool according to the section
" 8. CHANGING THE TOOL " procedure above.
(Fig. 4).
②Place the provided 7mm wrench on the spindle
shaft, and turn the top of the collet counter-
clockwise to remove the collet.
③Install the new collet into the Spindle by turning it
clockwise.
Please set the cutting tools to minimize the
overhang amount. 13mm is the maximum amount
of overhang to maintain high accuracy and safety.
RECOMMENDATION
10. INSTALLATION OF THE SPINDLE
WARNING
When installing a Spindle to a xed base, make sure the xed base is grounded in order to avoid
the risk of an electric shock.
CAUTION
・When installing a Spindle, do not hit, drop or cause shock to the Spindle. This may cause
damage to internal components and result in malfunctions.
・ When mounting the Spindle, be sure to secure within Clamping Area etched on the motor
spindle O.D. If theSpindle is installed incorrectly, damage to the internal components is possible.
・Cautions when tightening the securing bolts on to a Split Type Holder
Do not over-tighten the bolt. This will cause damage to Spindle's precision.
Tighten the bolt until the Spindle body can not be rotated by hand within the xture.
Extreme tightening is not necessary or recommended.
Apply working force and check that the Spindle is tight before using.
①When mounting a Spindle, refer to the Clamping Area
etched on the Spindle (Fig. 5).
( Clamping Area )
CLAMPING AREA
(27)
Fig. 5
Slit
Fastening Bolt
Slit of Bushing
Fastening Bolt Fastening Bolt
Spacer
Bushing with Slit
Split Type Holder
Fig. 6
②When installing a Spindle to the holder, recommended installation method is shown Fig 6. Refer to " ③How to
fabricate the Split Type Holder ". If this is not possible, install as shown in Fig. 7.
Fig. 7 Fig. 8
CAUTION
Do not allow set screws to come directly in
contact with the Spindle body as shown in
Fig. 8, as this will result in damage to the
Spindle housing and internal components.
When installing, never clamp directly over
the bearings, as this will result in bearing
damage (Refer to Fig. 9).
Fastenig Bolt
Deformation
Damage of internal
Components
Bearing
Fig. 9
Fastening Bolt
Front View
Fastening Bolt
Spacer
Slit
Side View
Fastening Bolt
Screw for Removal
Spacer
Spacer
Screw for Removal
③How to fabricate the Split Type Holder
(1) Rough bore the inside diameter of the Split
Type Holder.
(2) Cut a slit. (Ex. Slit 2mm) wide.
(3) Tighten the Screw for Removal and Force
Open the Slit Area.
(4) Insert a spacer (Ex. thickness = 2mm) into
the Slit Area.
(5) Loosen the Screw for Removal, and tighten
the fastening bolt with its specied torque.
(6) Finish the Split Type Holder so that the
inside diameter of the Split Type Holder
is ȭ 22.8 with its tolerance range from
-
0.01mm to
-
0.015mm, and its roundness
and cylindricity of less than 5μm.
(7) When inserting the Spindle loosen the
Fastening Bolt, and tighten the Screw for
Removal, widening the Slit Area. Fig. 10
CAUTION
・How to conrm the correct tightening or clamping of the Spindles in the holder : In case of use
a brushless motor.
Measure the current value of the Control Unit's power cord by the clamp meter.
Fasten the holder so that the increase in the no-load current value (during rotation at the
maximum rotation speed) with the Spindle fastened is 10mA (for type 200V / 230V) or less,
compared to the no-load current value (during rotation at the maximum rotation speed)
without fastening the Spindle. Do not over-tighten the Fastening Bolt. It may damage Spindle's
precision and shorten the life of the bearings.
・ The nal responsibility for ensuring holder ' s safety for use in a given application is left to the
designer of the equipment in which NAKANISHI's Spindle is installed.
NAKANISHI offers Spindles with a wide variety of capabilities and specications.
Please carefully check the Spindle's specications against the requirements of your
equipment and verify suitability and safety of the Holder prior to initial use.
11. BREAK-IN PROCEDURE
During transportation, storage or installation, the grease inside the bearings will settle. If the Spindle is suddenly run at
high-speed, the grease will be ejected from the bearings, causing excessive heat that will cause bearing damage. After
installation, repair, initial operation, or long periods of non operation, please follow the break-in procedure detailed in Table. 2.
Steps 12 3 4
Air Pressure (MPa) For Air Motor 0.1 0.2 0.3 0.4
Rotation Speed
(min-1) (rpm)
For Brushless Motor 5,000 10,000 15,000 20,000
Rotation Time (min) 15 10 10 15
Items to Check
No Abnormal
Noises.
The Spindle housing temperature during
the break-in process should not exceed 20
degrees C (36 degrees F) above ambient
temperature. Should the Spindle exceed this
limit, rest the Spindle for at least 20 minutes
and re-start the break in procedure from the
beginning. If the housing temperature rises
again and exceeds 20 degrees C (36 degrees
F) above ambient temperature, check the
Spindle and motor for proper installation.
The Spindle
housing
temperature
during the
break-in
process should
not exceed
20 degrees C
(36 degrees F)
above ambient
temperature.
Table. 2
Table. 3Overhang and Speed
Overhang (mm) Max. Speed (min-1) (rpm)
20 N x 0.5
25 N x 0.3
50 N x 0.1
* N = Max. Operating Speed with 13mm overhang.
Table. 3Overhang and Speed
Overhang (mm) Max. Speed (min-1) (rpm)
20 N x 0.5
25 N x 0.3
50 N x 0.1
* N = Max. Operating Speed with 13mm overhang. Fig. 11
3.14 x Diameter (mm) x rotation speed (min-1) (rpm)
1,000 x 60
Surface Speed (m/s)
=
12. CAUTIONS IN USING GRINDSTONES AND TOOLS
①The proper surface speed for general grindstones is 10 -30 m /s.
②Do not exceed 13mm of overhang for mounted grindstones as shown in Fig. 11. If the overhang must
exceed 13mm, reduce the motor speed in accordance with Table. 3.
③Dress the grindstone prior to use.
④Do not use cutting tools with bent or broken shanks, cracks or excessive run-out.
⑤For grinding, the maximum depth of cut should not exceed 0.01mm radially or axially. Reciprocate the
tool several times after each pass to eliminate tool pressure.
⑥Always operate cutting tools within the allowable recommended speed of the cutting tools. Use of a
cutting tool outside of the allowable speed of the cutting tools could cause damage to the spindle and
injury to the operator.
⑦Keep the cutting tool shank and collet clean. If contaminants are left in the collet, excessive run-out will
cause damage to the cutting tool and or spindle.
⑧Do not strike or disassemble the Spindle.
⑨Please set the cutting tools to minimize the overhang amount. 13mm is the maximum amount of overhang
to maintain high accuracy and safety.
13
CAUTION
The maximum surface speed or rpm is always specied for a grindstone. Do not exceed the
maximum speed with reference to the calculating chart below. Always follow the grindstone
manufacturer's recommendations.
13. TROUBLESHOOTING
If a problem or concern occurs, please check the following prior to consulting your dealer.
14. DISPOSAL OF THE SPINDLE
When disposal of a Spindle is necessary, follow the instructions from your local government agency for proper
disposal of industrial components.
In case of using a brushless motor, refer to brushless motor and E2530 Control Unit Operation Manuals.
In case of using an air motor, refer to the air motor and the Air Line Kit Operation Manuals.
Contents are subject to change without notice.
Trouble Cause Inspection / Corrective Action
Spindle does not rotate or
rotate smoothly.
The Spindle ball bearings have been
damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
The motor has been damaged. Replace the motor.
(Return to NAKANISHI dealer service.)
Overheating during
rotation.
Cutting debris has contaminated the
ball bearing, and the ball bearings are
damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Abnormal vibration or
noise during rotation.
The tool shank is bent. Replace the tool.
Cutting debris has contaminated the ball
bearings.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
The spindle ball bearings have been
damaged.
Tool slippage. Collet chuck is not correctly installed. Check and clean the collet. Reinstall the collet.
The collet is worn. Replace the collet.
High run-out. The tool is bent. Change the tool.
Collet chuck is not correctly installed. Secure the collet correctly.
The collet is worn. Replace the collet.
Inside of the Spindle is worn. Replace the Spindle shaft.
(Return to NAKANISHI dealer service.)
Contaminants inside the collet or the
Spindle.
Clean the collet and the inside of the taper and
Spindle.
The Sindle ball bearings have been
damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
2015.07.20 002