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Summary of Contents for SCHUNK TANDEM KRP3
- Page 1 Translation of Original Operating Manual TANDEM Clamping Block KRP3, KRP3-LH Assembly and Operating Manual...
- Page 2 Imprint Imprint Copyright: This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights reserved. Technical changes: We reserve the right to make alterations for the purpose of technical improvement. Document number: 1514176 Version: 01.00 | 30/11/2022 | en...
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Page 3: Table Of Contents
Table of Contents Table of Contents General........................ 5 About this manual.................... 5 1.1.1 Presentation of Warning Labels............... 5 1.1.2 Sizes ...................... 5 1.1.3 Applicable documents ................ 6 Variants ........................ 6 Warranty ...................... 6 Scope of Delivery .................... 6 Basic safety notes .................... 7 Intended use ...................... - Page 4 Table of Contents Maintenance and care .................... 29 Notes........................ 29 Maintenance and lubrication intervals .............. 29 Greasing areas / lubricants ................ 29 Maintenance work ..................... 30 7.4.1 Lubricate .................... 30 7.4.2 Basic cleaning.................. 31 7.4.3 Leak test.................... 35 7.4.4 Assembly device.................. 36 Sealing kits, accessory kits and parts lists.............. 37 Sealing kit lists....................
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Page 5: General
General 1 General 1.1 About this manual This manual contains important information for a safe and appropriate use of the product. This manual is an integral part of the product and must be kept accessible for the personnel at all times. Before starting work, the personnel must have read and understood this operating manual. -
Page 6: Applicable Documents
• General terms of business * • Catalog data sheet of the purchased product * The documents labeled with an asterisk (*) can be downloaded from schunk.com. 1.2 Variants This manual applies to the following variants: • Clamping force amplification for O.D. clamping (AS) •... -
Page 7: Basic Safety Notes
• Structural changes should only be made with the written approval of SCHUNK. 01.00 | KRP3, KRP3-LH | TANDEM Clamping Block | en | 1514176... -
Page 8: Spare Parts
Use of unauthorized spare parts Using unauthorized spare parts can endanger personnel and damage the product or cause it to malfunction. • Use only original spare parts or spares authorized by SCHUNK. 2.5 Use of special chuck jaws Requirements of the chuck jaws When using special chuck jaws, please observe the following rules: •... -
Page 9: Personnel Qualification
Basic safety notes 2.7 Personnel qualification Inadequate qualifications of the personnel If the personnel working with the product is not sufficiently qualified, the result may be serious injuries and significant property damage. • All work may only be performed by qualified personnel. •... -
Page 10: Notes On Safe Operation
Basic safety notes 2.9 Notes on safe operation Incorrect handling of the personnel Incorrect handling and assembly may impair the product's safety and cause serious injuries and considerable material damage. • Avoid any manner of working that may interfere with the function and operational safety of the product. -
Page 11: Disposal
Basic safety notes 2.12 Disposal Handling of disposal The incorrect handling of disposal may impair the product's safety and cause serious injuries as well as considerable material and environmental harm. • Follow local regulations on dispatching product components for recycling or proper disposal. 2.13 Fundamental dangers •... -
Page 12: Protection During Commissioning And Operation
Basic safety notes 2.13.2 Protection during commissioning and operation Falling or violently ejected components Falling and violently ejected components can cause serious injuries and even death. • Take appropriate protective measures to secure the danger zone. • Never step into the danger zone during operation. 2.13.3 Protection against dangerous movements Unexpected movements Residual energy in the system may cause serious injuries while... - Page 13 Basic safety notes WARNING Risk of injury due to immediate closing of the product with high spring force in the event of pneumatic pressure failure (AS variant). Ensure stable compressed air supply • Use pressure maintenance valves • WARNING Risk of injury in the event of workpiece loss due to failure or pressure reduction of the compressed air.
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Page 14: Technical Data
Technical data 3 Technical data Installation position Operating temperature +5°C to +60°C Noise emission [dB(A)] ≤ 70 Pressure medium Compressed air, compressed air quality according to ISO 8573-1: 7:4:4 Designation KRP3 Stroke per jaw [mm] Clamping force* (6 bar) 12/15 30/36 36/45 55/66.5... - Page 15 Technical data Clamping force is the arithmetic sum of the individual forces occurring at the chuck jaws at distance "H" (see also catalog). The increase in clamping caused by the spring assembly depends on the stroke due to the spring tension. The maximum spring force is reached in the "open" condition, the minimum spring force in the "closed"...
- Page 16 Technical data Optional Z variant ±0.01 mm to clamping center Clamping sleeve ±0.04 mm to clamping center Clamping sleeve fitting screw ±0.02 mm to clamping center Only with variant "PM" 01.00 | KRP3, KRP3-LH | TANDEM Clamping Block | en | 1514176...
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Page 17: Tightening Torques For Screws
Tightening torques for screws 4 Tightening torques for screws Tightening torques for mounting the clamping system on the machine table (screw quality 10.9) Screw size M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 Tightening torque 120 160 200 290 400 500 (Nm) Tightening torques for mounting top jaws on the TANDEM clamping force block (screw quality 12.9) -
Page 18: Assembly And Connection
Assembly and connection 5 Assembly and connection The numbers shown for individual components refer to the illustrations for assembly or connections of the clamping force } 9 [ / 40] block and to the "Assembly Drawings" chapter. WARNING Danger of crushing due to the product approaching the machine table during assembly. -
Page 19: Mounting The Clamping Block On The Base Plate
Assembly and connection NOTE • For vertical installation, the openings of the coolant drain (V) must always face downwards Assembly with clamping sleeves: Mount the clamping force block on the machine table together with clamping sleeves (item 85) and screws (item 84). Assembly with fitting screws: There are two fittings in the housing (item 1) that, along with the fitting screws (item 82), are used to center the clamping force... - Page 20 Assembly and connection • Do not open the connections on the front of the clamping force block (I, II), or seal them with suitable dummy plugs (M5 or G1/8"). • Insert the clamping sleeves from the accessory kit into the centering holes on the base plate.
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Page 21: Connecting The Clamping Force Block
Assembly and connection 5.3 Connecting the clamping force block OPEN (front) CLOSED (front) OPEN (bottom) CLOSED (bottom) Coolant drainage / connection for air purge (front) Adapter Clamping system VIII O-ring Ø 6 x 1.5 Hose-free direct connection Dynamic pressure monitoring for jaw end position "open" Dynamic pressure monitoring for jaw end position "closed"... -
Page 22: Supply Lines
Assembly and connection 5.3.1 Supply lines The clamping force block has four air connections: I, II, III, IV. Two connections for OPEN (I and III) and two connections for CLOSE (II and IV). The application determines which of the two air connections must be opened for actuation: •... -
Page 23: Dynamic Pressure Monitoring Of The Jaw End Positions (Variant "Pm")
Assembly and connection 5.3.2 Dynamic pressure monitoring of the jaw end positions (variant "PM") Dynamic pressure monitoring for the jaw end positions is integrated via connections 1 and 2 on the bottom. Connection 1 → monitoring open jaw position. Connection 2 → monitoring closed jaw position. The max. -
Page 24: Air Coupling In Top Jaws (Variant "Pm")
Assembly and connection 5.3.3 Air coupling in top jaws (variant "PM") The top jaws can be controlled with compressed air via the pneumatic connections on the bottom. The respective connection assignment can be found in the chapter "Connecting the clamping } 5.3 [ / 21] force block". - Page 25 Assembly and connection When using top jaws type STR / STR-H / STR-S, define the bore position according to the clamping position. Always observe dimension E. Use for cleaning the clamping surfaces The customer can create channels in the top jaw in order to clean the clamping and bearing surfaces by means of compressed air.
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Page 26: Pneumatic Circuit Diagram
Assembly and connection 5.3.4 Pneumatic circuit diagram ← → Jaw stroke "open" → ← Jaw stroke "close" Dynamic pressure monitoring for jaw end position "open" (2 bar) Dynamic pressure monitoring jaw stroke "closed" (2 bar) Air coupling in top jaw 2 (2 bar) Air coupling in top jaw 3 (2 bar) Air coupling in top jaw 1 (2 bar) 01.00 | KRP3, KRP3-LH | TANDEM Clamping Block | en | 1514176... -
Page 27: Troubleshooting
Check maintenance unit, perform maintenance work. Place the oiler closer to the clamping system; adjust the necessary oil quantity Chuck piston screw broken (overload) Send clamping system to SCHUNK for repairs or disassemble clamping system and repair using original SCHUNK spare parts... - Page 28 Troubleshooting Clamping force block movement jerky Possible cause Solution(s) Steel guide rollers on sliding surfaces See chapter "Maintenance and Care" } 7 [ / 29] not greased The monitoring piece in a base jaw is Loosen the adjustment screws and readjust the pressed too tightly against the housing monitoring piece } 7 [ / 29]...
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Page 29: Maintenance And Care
Replacement of the housing and base jaws The base jaws and the guides in the housing are matched to each other. To replace these parts, send the entire product to SCHUNK with a repair order. Maintenance variant with clamping force maintenance (AS) The cylinder piston must be disassembled or assembled using a disassembly and assembly device. -
Page 30: Maintenance Work
Maintenance and care 7.4 Maintenance work 7.4.1 Lubricate CAUTION Allergic reactions or irritation due to skin or eye contact with lubricants on the product. Wear protective equipment (protective gloves, protective • goggles) in case of foreseeable contact with lubricants on the product (e.g. -
Page 31: Basic Cleaning
It is recommended to have the maintenance work and change • of seals carried out by SCHUNK. For basic cleaning, the product must be disassembled, cleaned and reassembled. With the "PM" variant, the pneumatic jaw end position control must also be set. - Page 32 Maintenance and care Remove screws (65) and pull out cover (5) together with O-ring (45) and flat gaskets (48) out of the housing. To do this, screw two screws into the threaded holes as an extraction tool for size 100: M3 x L>25 for size 160: M3 x L>25 for size 200: M5 x L >...
- Page 33 Maintenance and care Variant with clamping force maintenance (AS) Warning! Risk of injury due to spring forces! The cylinder piston and cover are under spring tension! Clamp the product between the base jaws (2) and the mounting cover (200) using a suitable device (e.g.
- Page 34 Maintenance and care Adjustment of pneumatic jaw end position monitoring Size 100 Jaw 1: monitoring open jaw position • Move base jaws to OPEN position. • Screw the set-screw (61) into the bore hole oo up to the stop and then unscrew it again by a few turns. •...
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Page 35: Leak Test
Maintenance and care Jaw 2: monitoring closed jaw position • Move base jaws to CLOSED position. • Screw the set-screw (61) into the bore hole oooo up to the stop and then unscrew it again by a few turns. • Slowly screw the set-screw (61) into the bore hole ooo until the differential pressure sensor emits a switching signal. -
Page 36: Assembly Device
Maintenance and care 7.4.4 Assembly device Dimension Sizes Ø d1 97.5 155.5 195.5 Ø d2 Ø d3 Ø d4 Ø d5 10.5 38.9 93.8 38.9 49.8 93.8 43.5 91.5 19.4 60.5 76.5 68.3 19.4 76.5 68.3 34.3 93.8 26.8 60.5 68.3 01.00 | KRP3, KRP3-LH | TANDEM Clamping Block | en | 1514176... -
Page 37: Sealing Kits, Accessory Kits And Parts Lists
Sealing kits, accessory kits and parts lists 8 Sealing kits, accessory kits and parts lists When ordering spare parts, the type , size and, if possible, the serial number of the clamping force block must always be stated to avoid delivery mistakes. -
Page 38: Accessory Kits
Sealing kits, accessory kits and parts lists 8.2 Accessory kits Accessory kit ** Size 100 1496867 Size 160 1502963 Size 200 1510500 Size 250 1506773 ** For included items, see column > z < in the Parts List chapter below. 8.3 Parts lists Parts list "Standard stroke"... - Page 39 Sealing kits, accessory kits and parts lists Flat gasket ● ● ● ● O-ring DIN ISO 3601 ● Set-screw ● Set-screw ● Countersunk screw ● ISO 14581 Countersunk screw ● ● ● ● Cylindrical screw ● Screw ● Set-screw ● ●...
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Page 40: Assembly Drawings
Assembly drawings 9 Assembly drawings 9.1 KRP3, KRP3-LH with variant "PM" with variant "AS" Centering with fitting screws Centering with clamping sleeves Centering with cylindrical pins (Z variant) 01.00 | KRP3, KRP3-LH | TANDEM Clamping Block | en | 1514176... -
Page 41: Translation Of The Original Declaration Of Incorporation
Directive 2006/42/EG, Annex II, Part 1.B of the European Parliament and of the Council on machinery. Manufacturer/ H.-D. SCHUNK GmbH & Co. Spanntechnik KG Distributor Lothringer Str. 23 D-88512 Mengen We hereby declare that on the date of the declaration the following partly completed machine complied with all basic safety and health regulations found in the directive 2006/42/EC of the European Parliament and of the Council on machinery. -
Page 42: Appendix On Declaration Of Incorporation, As Per 2006/42/Ec, Annex Ii, No. 1 B
Appendix on Declaration of Incorporation, as per 2006/42/EC, annex II, No. 1 B 11 Appendix on Declaration of Incorporation, as per 2006/42/EC, annex II, No. 1 B 1. Description of the basic safety and health protection requirements, as per 2006/42/EC, annex I, that apply to and are fulfilled for the scope of the incomplete machine: Product designation TANDEM clamping force block, pneumatic Type designation... - Page 43 Appendix on Declaration of Incorporation, as per 2006/42/EC, annex II, No. 1 B Protection against mechanical hazards 1.3.4 Risks due to surfaces, edges or angles 1.3.5 Risks related to combined machinery 1.3.6 Risks related to variations in operating conditions 1.3.7 Risks related to moving parts 1.3.8 Choice of protection against risks arising from moving parts...
- Page 44 Appendix on Declaration of Incorporation, as per 2006/42/EC, annex II, No. 1 B Maintenance 1.6.5 Cleaning of internal parts Information 1.7.1 Information and warnings on the machinery 1.7.1.1 Information and information devices 1.7.1.2 Warning devices 1.7.2 Warning of residual risks 1.7.3 Marking of machinery 1.7.4...
- Page 48 Translation of Original Operating Manual 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...
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