Kitagawa NC Rotary Table Manual
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Kitagawa NC Rotary Table Manual

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Thank you for choosing the Kitagawa NC Rotary Table.
Kitagawa， a world-renowned precision equipment manufacturer, has developed the finest
quality NC Rotary Table with emphasis in high precision and rigidity as its basic principals
in design.
This unit is installed on the machining centers and suitable for indexing the angle of
machining position of the workpieces. Please contact us if it is used for any other
applications.
This NC Rotary Table has been designed to provide years of high precision performance.
To ensure optimum and trouble-free performance, please read this operation manual
carefully before using the unit and retain this copy for your future reference.
Please pay close attention to the procedures with the following warning marks
severe injury and/or accident.
Safety Alert Symbol
This is the industry " Safety Alert Symbol ". This symbol is used to call your attention to
items or operations that could be dangerous to you or other persons using this equipment.
Please read these massages and follow these instructions carefully. It is essential that you
read the instructions and safety regulations before you attempt to assemble or use this
unit.
DANGER
WARNING
CAUTION
NOTICE
Indicates an Imminently hazardous situation which,
If not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury.
Instructions for table performance and avoiding
errors or mistakes.
to avoid

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Summary of Contents for Kitagawa NC Rotary Table

  • Page 1 Thank you for choosing the Kitagawa NC Rotary Table. Kitagawa， a world-renowned precision equipment manufacturer, has developed the finest quality NC Rotary Table with emphasis in high precision and rigidity as its basic principals in design. This unit is installed on the machining centers and suitable for indexing the angle of machining position of the workpieces.
  • Page 2 We hereby declare that the following our product conforms with the essential health and safety requirements of EC Directives. Product : NC ROTARY TABLE Type : MR Series, MRT Series ,GT Series, MX Series, TMX Series, THX Series, TRX Series, TLX Series,...

  • Page 3: Table Of Contents

    4-4. Recommended Lubricating Oil 4-5. Safety of Oil and Antirust Oil Used for the Unit12 5. Inspection ......................... 13 6. Use of NC Rotary Table .................... 13 7. Table Clamp and Unclamp..................14 7-1. General Instruction 7-2. Inlet Pressure for Table Clamp 7-3.

  • Page 5: For Your Safety

    1. For Your Safety Basic Safety Tips Please read this manual and follow instructions carefully. We cannot assume responsibility for damage or accidents caused by misuse of the NC Rotary indexing tables, through non-compliance with the safety instructions. DANGER Turn off the main power of the machine prior to maintenance, check, or repair of the unit, Failure to do so may cause severe injury and/or accident.
  • Page 6 WARNING Tighten the bolts securely when mounting the unit on the machine table. Please refer to the chart below for the recommended tightening torque of the bolts. Hex. Bolt Size Torque N・m 33.8 58.9 146.3 294.3 Make sure the working area is clear of any foreign object and/or hand when the unit is in operation to avoid any serious accident and/or injury.
  • Page 7 WARNING Please consult your local distributor before attempting any modification of the unit. Maintain adequate clearance between the unit and any part of the machine. Avoid bending the external cables and air tube of the unit. Use a support, steady rest, or tailstock for heavy or long workpieces to prevent any injury and/or accident.
  • Page 8 CAUTION When transporting the unit, make sure to use eye bolts and a sufficient leash or wire. Eye bolt Leash or Wire Mount or dismount the workpiece to or from the unit while the unit is clamped to avoid damage to the internal mechanism and diminished indexing accuracy of the unit.
  • Page 9 CAUTION Avoid sudden impact to any part of the unit which may cause damage to the internal mechanism. Supply air through Air combination (Air filter, Mist separator, regulator) ＋ Drain catcher. (The air supply port is on the motor case.) Apply air purge inside the motor case and be sure to provide dry air.
  • Page 10 NOTICE Mount all covers attached with O-rings. (No damages on O-rings) O-ring O-ring Replace lubricating oil every 6 months.

  • Page 11: Specifications

    Degree 3 Noise level ※The noise level is measured at a distance of 1m from the NC rotary table in front, rear, left, and right four positions of the unit. ※When storing the unit, conduct the antirust treatment and store it in a place free from...
  • Page 12 The above-mentioned list shows the value in standard NOTICE specification. Please refer to the outside view for details. Table clamping torque is measured at 0.5MPa pneumatic NOTICE pressure. Max. Rotation Speed is at 3000 min (rpm) of the motor rotation. Be sure to observe the allowance work inertia even if the CAUTION mass of workpiece is within the allowable value.

  • Page 13: Accuracies

    3. Accuracies (Unit:mm） Guaranteed Accuracies Description of Inspection Guaranteed Accuracy Run-out of center hole 0.01 Run-out of table surface 0.02 Parallelism of table surface and reference Per 150mm 0.02 plane for horizontal installation Parallelism of rotating axis center line and Per 150mm 0.02 reference plane for vertical installation...

  • Page 14: Preparation

    3) The motor case may be removed depending on the maintenance work. Accordingly, whenever possible, install the NC rotary table in a position where the motor case can be removed. In case of vertical installation, the guide blocks will fit into the slotted groove on the machine.

  • Page 15: Lubrication

    Relocating the NC rotary table with electric cables and working fluid piping connected and hung down causes the NC rotary table to be unstable or the worker to be tripped, resulting in unexpected accidents. Electric cables or working fluid piping may be damaged during relocation, and if the NC rotary table is installed on the machine again, unexpected accidents may occur.

  • Page 16: Recommended Lubricating Oil

    4-4. Recommended Lubricating Oil Maker Oil Name IDEMITSU Daphne Multiway 32MT MOBIL Vactra oil No.1 JX NIPPON OIL＆ENERGY Uniway EV 32 SHELL Shell Tonna oil S32 COSMO Dynaway 32 ・Grade of Viscosity : ISO VG32 4-5. Safety of Oil and Antirust Oil Used for the Unit 4-5-1.

  • Page 17: Inspection

    1) Confirm that the NC rotary tables (including jigs, if attached) are securely fixed. 2) Confirm that the chips accumulating in a rotary part of NC rotary table are removed. 3) Confirm that the electric connection cables and hoses are not damaged and the pneumatic pressure is appropriate.

  • Page 18: General Instruction

    3) Use this unit in the air pressure range of 0.45 to 0.6 MPa. 4) If the tail spindle is used, branch the air pressure from the NC rotary table to the tail spindle by using a tail spindle connection port provided on the NC rotary table. See the external view attached for the location of connection.

  • Page 19: Confirmation Of Clamp And Unclamp

    Be sure to use the clean air (passing through air filter, mist separator, regulator and drain catcher) passing through the filter. If the air contains water content (moisture), oil content, etc., it is entered in the motor cover, thus causing in equipment damage. The air inside of motor case is exhausted from the air exhaust port.

  • Page 20: Solenoid Valve For Clamp And Unclamp

    7-5. Solenoid Valve for Clamp and Unclamp For Pneumatic Clamping, a solenoid valve is equipped inside. Please refer to the specification drawn in outside view and wiring diagram. 【 Excitation Unclamp Spec. 】 Solenoid: ON ･･･ Unclamp Solenoid: OFF ･･･ Clamp 【...

  • Page 21: Maintenance Work

    Kitagawa’s own controller to set the pressure adjusting valve of air combination that supplies the air to the NC rotary table to 0 MPa or shut off the power of the air compressor to exhaust the compressed air, so as to stop the supply of the working fluid.

  • Page 22: Adjustment Of Backlash Between Worm Wheel And Worm Gear

    10. Adjustment of Backlash between Worm Wheel and Worm Gear The amount of backlash has been adjusted to the appropriate range at time of the shipment from the factory. However, if it becomes necessary, excessive backlash between the precisely machined double-lead worm and worm wheel can be eliminated easily with two slightly different inclined leads provided on the worm gear.
  • Page 23 T＝F×L T: Torque (N･m) F: Effort force (N) L: Distance from table center to point to add power F (m) Fig.2 10-2. Adjusting the Backlash of the Worm Gear [See Fig.3] Before proceeding to the backlash adjustment, you must turn off the power to the control unit and set the NC Rotary DANGER Table in the "unclamp"...
  • Page 24 MODEL MR162 MR202 Circular arc length at peripheral table position (μm) About 48 About 58 When finishing the adjustment, reassemble the table in reverse steps as the above and tighten bolts securely. (Tightening torque of hexagon socket head cap screws ⑥ : 3.4 N･m) After reassembling, measure the backlash at table periphery again at the same positions before adjusting, and check the backlash is adequate.

  • Page 25: Machine Zero Point Setting

    CNC of the machine on which the rotary table is installed. When setting the machine zero point, move the NC rotary table to the position where the machine zero point will be set. Then set the position as the machine zero point using the CNC parameters.

  • Page 26: The Notes Of Replace

    12. The notes of replace O-rings are used on the mounting surface of the motor case to prevent cutting fluid from entering from outside. Sealing washers are used on the threaded portions where cutting fluid may enter, and sealing hexagon socket head taper screw plugs are used on the taper screw holes.

  • Page 27: Removing / Installing Motor Case (Motor)

    12-1-2. Installing cables Reinstall the cables in the reverse order of the above procedure after replacing the parts. Install the tubes according to section 12-3. Connect the connectors according to section 12-4. Securely connect the connectors to avoid contact failure of the pins. Install the cables and tubes so that they are not bent or crushed.
  • Page 28 12-2-2. Installing motor case Reinstall the motor case in the reverse order of the above procedure after replacing the parts. Install the tubes according to section 12-3. Connect the connectors according to section 14-4. Securely connect the connectors to avoid contact failure of the pins. Install the cables and tubes so that they are not bent or crushed.

  • Page 29: Removing / Installing Piping

    12-2-4. Installing motor 1) Align the coupling ⑥ to the position measured above, and tighten the coupling fixing hexagon socket head cap screw ⑦. For the tightening torque, refer below. (Tightening torque of hexagon socket head cap screws ⑦ : 3.4 N･m) 2) Reinstall the motor in the reverse order of the above procedure after replacing the parts.

  • Page 30: Removing / Installing Connector

    12-3-2. Installing piping 1) Insert the tube ② gradually, and securely push it in to the tube end. 2) After inserting the tube ② to the end, pull it lightly to check that it is not pulled out. 3) Check that the tube is not bent or crushed when installing it. If the release bushing is not pressed sufficiently, the tube NOTICE digs into further and becomes hard to be pulled out.

  • Page 31: Piping Diagram

    Check that connectors and cables are not damaged before CAUTION connecting. Connect cables so as not to be bent or crushed. Do not apply any load to cables. Plug Housing ① Receptacle Housing ② Fig.10 12-5. Piping Diagram When removing the piping to remove the motor case, refer to the following outside view and diagram.

  • Page 32: Troubleshooting

    If the fault persists, please contact your sales agent (M/C maker) or us. When making an inquiry, let us know the product type and manufacturing number marked on the nameplate of the NC rotary table body. Product type...
  • Page 33 Symptom ②： Table does not rotate but generates a noise Possible causes Corrective actions Motor makes a howling sound to try to Stop the use of NC rotary table immediately. rotate Please contact the sales agent. →Seizure of gears due to lack or...
  • Page 34 Faulty clamp device Stop the use of NC rotary table immediately. Please contact the sales agent. Fault due to damaged NC rotary table or Stop the use of NC rotary table expired life of components immediately. Please contact the sales agent.

  • Page 35: Parts List

    14. Parts List ○ Main Body MARK NAME MR162 MR202 Q'ty Recital Hexagon socket flange head M20×1.5 Gosho screw plug with O-Ring Hexagon socket headless tapered Rc3/8 pipe plug with seal Cover "A" Machine screw for Cover "A" M6×12 O-ring S 67 Hexagon socket head cap screw M6×25...
  • Page 36 ○ Main Body MARK NAME MR162 MR202 Q'ty Recital Hexagon socket headless tapered Rc3/8 pipe plug with seal Hexagon socket headless tapered Rc1/4 pipe plug with seal Silencer Relief valve...
  • Page 37 ○ Motor Case MARK NAME MR162 MR202 Q'ty Recital Cover "P" Machine screw for Cover "P" M5×8 Seal Washer O-Ring S 112 Connector Plate Machine screw for Connector Plate M5×12 Seal Washer O-Ring S 112 When the specification is 4th axis, the motor case and the cable are different from the above figure.
  • Page 38 ○ Motor Case MARK NAME MR162 MR202 Q'ty Recital Hexagon socket head cap screw M6×16 O-Ring GS 195 Solenoid Valve VK332-5DS-M5-F-Q DC24V Machine screw M3×6 Tube Connector Tube Connector Tube Connector for Air Purge Pressure switch for clamp detection PS1000-R06L-Q-X140 0.25MPa Pressure switch for unclamp detection PS1100-R06L-Q-X141...
  • Page 39 ○ Accessory MARK NAME MR162 MR202 Q'ty Recital Guide block Hexagon socket head cap screw M6×12 Hexagon head bolt for clamp M12×45 Washer T-slot nut When the specification is different, the clamping parts and guide block are different from the above figure. For detailed models, refer to attached outside view.

  • Page 40: Storage

    Note： Some raw wood is chemically unstable and may cause rust on the unit. 16. Disposal of NC Rotary Table Dispose of this unit in accordance with the laws and regulations of your country.

  • Page 41: Indexing Accuracy And Pitch Error

    17. Indexing Accuracy and Pitch Error “ What is the linear length at the table circumference with NOTICE 20 seconds cumulative indexing accuracy ?” “ What is the angle with a cumulative pitch error of 0.01mm ?” To answer these questions, use the following formula representing the relationship between the angle and linear length at the table circumference.

  • Page 42: Mounting Rotary Joint (Option)

    (B-size in the following figure). When the rotary joint is mounted additionally or a set of rotary joint parts is replaced, check the product type and manufacturing number, and contact Kitagawa branch or your agent. Exterior type rotary...

This manual is also suitable for:

Mr series, mrt seriesGt seriesMx seriesTmx seriesThx seriesTrx series ... Show all

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