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Related Manuals for SCHUNK ROTA NC plus 2
Summary of Contents for SCHUNK ROTA NC plus 2
- Page 1 Power chuck ROTA NC plus 2 / ROTA NCF plus 2 Assembly and Operating Manual Original operating manual...
- Page 2 Your SCHUNK team Customer Management Tel. +49-7572-7614-1300 Fax +49-7572-7614-1039 customercentermengen@de.schunk.com Please read the operating manual in full and keep it close to the product. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 3: Table Of Contents
8.2 Jaw Change or supplement of jaws ............35 8.3 Disassembly and assembly of the Chuck ........... 38 9 Maintenance ..................39 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 4 9.2 Maintenance intervals................40 9.3 Changing the top jaws ................. 40 10 Disposal ..................... 41 11 Spare parts ..................42 12 Drawing..................... 44 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 5: General
CAUTION Dangers for persons! Non-observance can cause minor injuries. NOTICE Material damage! Information about avoiding material damage. WARNING Warning about hand injuries 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 6: Applicable Documents
Calculation of the jaw centrifugal forces, "Technology" chapter in the lathe chuck catalog * The documents labeled with an asterisk (*) can be downloaded from schunk.com. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 7: Basic Safety Instructions
02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 8: Notes On Particular Risks
EC Machinery Directive; specifically, they must have effective technical measures to protect against possible mechanical hazards. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 9 Wear suitable safety shoes. Follow the safety and accident-prevention regulations when operating the chuck, especially when working with machine tools and other technical equipment. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 10 Ensure the chuck's axial and concentric runout. Check options for remedying imbalances on special top jaws and workpieces. Reduce the speed. Wear hearing protection. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 11: Notes On Safe Operation
02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 12 500 clamping strokes, at the latest (This moves the lubricant back to the surfaces of the force transmission, so that the clamping force is retained for longer). 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 13 Replace the chuck jaw mounting screws if there are signs of wear or damage. Only use screws with a quality of 12.9. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 14: Substantial Modifications
Spare parts Only ever use original SCHUNK spare parts. Environmental regulations Comply with the applicable legal norms when disposing of waste. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 15: Using Personal Protective Equipment
When using this product, you must comply with the relevant health and safety at work rules and you must use the required personal safety equipment (minimum: category 2). 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 16: Warranty
Observe the specified maintenance and lubrication intervals, } 9 [/ 39] Parts touching the workpiece and wear parts are not included in the warranty. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 17: Torques Per Screw
Max. admissible torque M (Nm) Tightening torques for the protection sleeve mounting screws (screw quality 8.8) Screw size Tightening torques M (Nm) 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 18: Scope Of Delivery
T-nuts with screws or 3 combi T-nuts Mounting wrench (from size 260 and up) Eye boltfrom size 260 and up Operating manual 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 19: Technical Data
Whereby the recommended maximum speed must not be exceeded. The values calculated must be checked by means of dynamic measurement using a clamping force tester. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 20: Clamping Force / Speed Diagrams
Clamping force per jaw Center of gravity Center of gravity radius Max. jaw eccentricity of center of gravity in axial Max. actuating force direction 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 21 Clamping force RPM graph ROTA NC plus 185-52 Clamping force RPM graph ROTA NC plus 215-66 Clamping force RPM graph ROTA NC plus 260-86 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 22 Clamping force RPM graph ROTA NC plus 315-104 Clamping force RPM graph ROTA NC plus 185-52 Clamping force RPM graph ROTA NCF plus 215-66 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 23: Calculations For Clamping Force And Speed
Safety factor for clamping force Mass of chuck jaw set [kg] Safety factor for machining Centrifugal force torque [Kgm] Max. clamping force of chuck [N] Σ 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 24: Calculation Of The Required Clamping Force In Case Of A Given Rpm
Speed of rotation Reduction in effective clamping force by the magnitude of the total centrifugal force, for gripping from the outside inwards. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 25 M and the centrifugal torque of the top jaws need to be added: 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 26: Calculation Example: Required Initial Clamping Force For A Given Speed
Take the centrifugal torque of the base jaw and top jaw specified from the "Lathe chuck data" table: For the centrifugal torque of the top jaw, the following applies: 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 27: Calculation Of The Permissible Speed In Case Of A Given Initial Clamping Force
= 1.5 (according to VDI 3106) NOTE: Masses of the jaw mounting screws and T-nuts are not taken into account. Identifying the permissible RPM: 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 28: Grades Of Accuracy
6.4 Grades of Accuracy The radial and axial runout tolerance correspond to the technical delivery specifications for chucks according to DIN ISO 3442-3. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 29: Attachment And Disassembly Of The Chuck
Check the delivery for completeness and for transport damage. 7.2 Inspection of the spindle nose Checking the spindle nose for mounting the chuck flange. Chuck assembly 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 30: Mounting Of The Chuck
Chuck quick-change or intermediate flange - C). The eye bolt is in all deliveries from chuck size 260 and up included. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 31: Mounting The Chuck By Means Of A Direct Mount
(see Fig. "Assembly of the chuck" - E). Tighten the mounting screws on the chuck flange with a torque wrench. When doing this, 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 32: Mounting The Rota Nc Plus / Ncf Plus Chuck With A Centering Edge
R2 = R1 – 0.5 mm (max. – 1 mm) Chucks in sizes 185 and 215 The entire chuck must be turned to the draw tube (rod). 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 33 When the chuck mechanism is open there is a danger of limbs being crushed. Do not reach into the open chuck mechanism! 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 34 NC plus 2 / NCF plus 2 260-86 M94 x 1.5 21.5 93 x 2 NC plus / NCF plus 315-104 M115 x 2.0 22.7 110 x 3 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 35: Function And Handling
Tighten the mounting screws of the top jaws with a torque wrench. Never tighten the Allen key with an extension pipe or by hitting it with a hammer. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 36 The spring-loaded pressure piece (II) can be finely adjusted. To do this, slightly loosen the set-screw (III) and adjust the spring- loaded pressure piece. Then tighten the set-screw (III). Figure 1 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 37 The chuck jaw (V) can be changed if the pin of the cartridge (I) is depressed with a punch or screwdriver. The quick change is suitable for O.D. and I.D. clamping. Figure 3 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 38: Disassembly And Assembly Of The Chuck
In the case of the NCF plus 2-215 and NCF plus 2-260, screw in the set screw (Item 13) to the stop and then unscrew one revolution. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 39: Maintenance
Only use original SCHUNK spare parts when replacing damaged parts. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 40: Maintenance Intervals
9.3 Changing the top jaws When changing the top jaws, the serration has to be cleaned and greased with SCHUNK LINOMAX plus special grease. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 41: Disposal
Dispose of the chuck's metal parts as scrap metal. Alternatively, you can return the chuck to SCHUNK for proper disposal. 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... -
Page 42: Spare Parts
Compression spring * Steel ball * Seal * Set screw * Set screw *** Compression spring ** Steel ball ** Screws Screws Screws O-ring 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 43 T-nuts (1.5 x 60°) only for NCF plus 2 only for chuck size 260 - 315 *** only for NC plus 2 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
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Page 44: Drawing
Drawing 12 Drawing Only for NCF plus 2 Only for chuck sizes 260 - 315 *** Only for NC plus 2 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en... - Page 45 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 46 02.00 | ROTA NC plus 2 / ROTA NCF plus 2 | Power chuck | en | 0889127-en...
- Page 47 H.-D. SCHUNK GmbH & Co. Spanntechnik KG Lothringer Str. 23 D-88512 Mengen Tel. +49-7572-7614-0 Fax +49-7572-7614-1099 info@de.schunk.com schunk.com Folgen Sie uns I Follow us Wir drucken nachhaltig I We print sustainable...
- Page 48 2B, NCA, NCD, NCE, NC, NCF, NCK, NCO, NCR, NCS, NCX, TH, THW Heinz-Dieter SCHUNK GmbH & Co. Spanntechnik KG certifies that the above-mentioned products, when used as intended and in compliance with the operating manual and the warnings on the product, are safe according to the national regulations and: −...
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