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Summary of Contents for SCHUNK SPK 140
- Page 1 Translation of Original Operating Manual Jaw boxes SPK 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: 0889015 Version: 04.00 | 09/09/2022 | en...
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Page 3: Table Of Contents
Table of Contents Table of Contents General........................ 4 Warnings ...................... 4 Applicable documents .................. 5 Basic safety instructions................... 6 Intended use...................... 6 Not intended use .................... 7 Notes on particular risks.................. 7 Notes on safe operation .................. 10 2.4.1 Substantial modifications ............... 12 Personnel qualification.................. -
Page 4: General
General 1 General This operating manual is an integral component of the product and contains important information on safe and proper assembly, commissioning, operation, care, maintenance and disposal. This manual must be stored in the immediate vicinity of the product where it is accessible to all users at all times. Before using the product, read and comply with this manual, especially the chapter “Basic safety notes”.} 2 [ / 6]... -
Page 5: Applicable Documents
• Catalog data sheet of the purchased product * • Calculation of the jaw centrifugal forces, "Technology" chapter in the lathe chuck catalog * The documents marked with an asterisk (*) can be downloaded on our homepage schunk.com 04.00 | | Jaw boxes SPK | en | 0889015... -
Page 6: Basic Safety Instructions
Only original SCHUNK spare parts may be used. 2.1 Intended use The jaw boxes are suitable for clamping workpieces on face plates... -
Page 7: Not Intended Use
Basic safety instructions 2.2 Not intended use The jaw box is not being used as intended if, for example: • It is used as a press, a punch, a toolholder, a load-handling device or as lifting equipment. • It is used in working environments that are not permissible. •... - Page 8 Basic safety instructions DANGER Possible risk of fatal injury to operating personnel from clothing or hair being caught on the jaw box and being dragged into the machine! Loose clothing or long hair may become caught on projecting parts of the jaw box and be drawn into the machine! The machines and equipment must fulfill the minimum •...
- Page 9 Basic safety instructions CAUTION Risk of limbs being crushed when opening and closing the chuck jaws during manual loading or unloading or when exchanging moving parts. Do not reach between the chuck jaws. • Wear protective gloves. • Follow the safety and accident-prevention regulations during •...
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Page 10: Notes On Safe Operation
Basic safety instructions 2.4 Notes on safe operation WARNING Danger of shifting of the jaw box when the slide is not locked If the slide is not locked, the jaw box can shift and the workpiece can be thrown out. The workpiece may only be fully clamped when the slide of •... - Page 11 (clamping force, coefficient of friction, wear behavior). (For product information about LINO MAX, see the "Accessories" chapter of the SCHUNK lathe chuck catalog or contact SCHUNK.) • Use a suitable high-pressure grease gun to ensure that you reach all the greasing areas.
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Page 12: Substantial Modifications
• If the clamping device is involved in a collision, it must be subjected to a crack test before using it again. Damaged parts must be replaced with original SCHUNK spare parts. • Renew the mounting bolts on the chuck jaws if there are signs of wear or damage. -
Page 13: Personnel Qualification
Only allow specialists to remedy malfunctions. Spare parts Only ever use original SCHUNK spare parts. Environmental regulations Comply with the applicable legal norms when disposing of waste. -
Page 14: Using Personal Protective Equipment
Basic safety instructions 2.7 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). 04.00 | | Jaw boxes SPK | en | 0889015... -
Page 15: Warranty
Warranty 3 Warranty If the product is used as intended, the warranty is valid for 24 months from the ex-works delivery date under the following conditions: } 1.2 [ / 5] • Observe the applicable documents, • Observe the ambient conditions and operating conditions } 6 [ / 18] •... -
Page 16: Torque Per Screw
Torque per screw 4 Torque per screw Tightening torque for hexagon nuts with collar according to DIN 6331, in conjunction with screws for T-slots according to DIN 787. (Screw quality 8.8) Or mounting screws according to DIN EN ISO 4762 in conjunction with nuts for T-slots according to DIN 508. -
Page 17: Scope Of Delivery
Scope of delivery 5 Scope of delivery Jaw box with assembly accessories Sizes: SPK 140, SPK 180, SPK 220, SPK 260 including hard base jaw with tongue and groove or base jaw with fine serration and T-slot Eye bolts DIN 580... -
Page 18: Technical Data
2,000 2,000 2,200 2,200 2,400 2,400 2,500 2,500 The recommended speed is applicable for jaw boxes on face plates with SCHUNK top jaws with tongue and groove, hard, type SHF. 04.00 | | Jaw boxes SPK | en | 0889015... -
Page 19: Calculations For Clamping Force And Speed
Technical data CAUTION The guide values for the maximum permissible speeds of rotation are only valid when the workpiece is exactly aligned on the face plate, and no imbalance occurs during machining. The speed of rotation must be reduced for jaws with a higher weight and workpiece machining with high imbalance! 6.2 Calculations for clamping force and speed Missing information or specifications can be requested from the... - Page 20 Technical data DANGER Risk to life and limb of the operating personnel and significant property damage when the RPM limit is exceeded! With gripping from the outside inwards, and with increasing RPM, the effective clamping force is reduced by the magnitude of the increasing centrifugal force (the forces are opposed).
- Page 21 Technical data CAUTION This calculated force must not be greater than the maximum clamping force ΣS. See also the table in chapter 6.1 "Chuck data" From the above formula it is evident that the sum of the effective clamping force F and the total centrifugal force F is multiplied by the safety factor for the clamping force S...
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Page 22: Calculation Example: Required Initial Clamping Force Fsp0 For A Given Rpm N
Technical data 6.2.2 Calculation example: Required initial clamping force Fsp0 for a given rpm n The following data is known for the machining job: • Gripping from the outside in (application-specific) • Machining force F = 3000 N (application-specific) • max. speed of rotation n = 3200 RPM (Table "Permissible } 6 [ / speed of rotation for jaw boxes on face plates"... -
Page 23: Calculation Example: Permissible Rpm For A Given Effective Clamping Force
Technical data The total centrifugal force can now be calculated: Initial clamping force during shutdown that was sought: 6.2.3 Calculation example: permissible RPM for a given effective clamping force The following formula can be used to calculate the permissible RPM for a given initial clamping force during shutdown: CAUTION The calculated permissible RPM may not exceed the maximum } 6 [ / 18]... -
Page 24: Grades Of Accuracy
Technical data 6.3 Grades of Accuracy Tolerances for radial and axial run-out accuracy correspond to the Technical Supply Terms for lathe chucks as per DIN ISO 3442-3. 6.4 Permissible imbalance Rotating clamping stations without pallets and workpieces correspond to balancing quality class 6.3 (according to DIN ISO 21940-11). -
Page 25: Attachment Of The Jaw Boxes
Attachment of the jaw boxes 7 Attachment of the jaw boxes 7.1 Preparing the installation Before mounting the jaw boxes, check the face plate of the machine tool for damage. The clamping surface must be clean and flat. Rectify any damage to the clamping surface. If the jaw box is mounted on face plates or intermediate disks using T-slots, a crossbar to prevent the jaw box from falling out must generally be installed . -
Page 26: Mounting The Jaw Boxes
Attachment of the jaw boxes 7.2 Mounting the jaw boxes 1. Clean the face plate and the bottom-side clamping surface of the jaw boxes. 2. Insert screws for T-slots from below into the jaw boxes and screw loosely with hexagon nuts DIN 55027. 3. -
Page 27: Mounting The Jaw Boxes On Intermediate Plates
Attachment of the jaw boxes 7.4 Mounting the jaw boxes on intermediate plates 1. The jaw boxes can be mounted on different face plates by mounting them on intermediate plates. 2. The intermediate plates can be equipped with T-slots for connecting jaw boxes with screws and can also be equipped with T-slots for using DIN787 T-slot screws. -
Page 28: Function
Function 8 Function 8.1 Function of the jaw box The jaw box is a spindle powered clamping vise. The clamping function is suited for both O.D. workpiece clamping and I.D. workpiece clamping. Depending on the clamping direction, the same clamping force is also available at the spindle under the same torque (for changes to the clamping force under machining conditions, see chapter "Calculating the clamping force and RPM"... -
Page 29: Checking The Jaw Boxes
Function WARNING Danger of shifting of the jaw box when the slide is not locked If the slide is not locked, the jaw box can shift and the workpiece can be thrown out. The workpiece may only be fully clamped when the slide of •... -
Page 30: Maintenance And Care
Maintenance and care 9 Maintenance and care The item numbers specified for the corresponding individual components relate to chapter drawings.} 11 [ / 39] In principle, the jaw boxes do not require any special maintenance beyond the usual care for clamping devices. Depending on the type of stress, the clamping device should be serviced at certain intervals } 9.2 [ /... - Page 31 (item 12) does not become damaged or deformed. Clean and degrease all parts carefully and check all parts for wear and damage. Only use original SCHUNK spare parts when replacing damaged parts. Before assembly, grease all individual components with a suitable grease (LINO MAX).
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Page 32: Maintenance Intervals
Maintenance and care 9.2 Maintenance intervals Lubricating the jaw box Lubrication intervals Contamination At least once a month Normal to medium contamination 300 operating hours Normal to medium contamination 200 operating hours Severe contamination Approx. 1000 operating hours Full cleaning with disassembly of jaw box depending on type of contamination and quantity Using a hand press, lubricate the moving parts such as... -
Page 33: Spare Parts
Spare parts 10 Spare parts When ordering spare parts, it is imperative to state the type, size and above all the manufacturing number of the chuck to prevent erroneous deliveries. Seals, sealing elements, screw connections, springs, bearings, screws, wiper bars and parts that come into contact with the workpiece are not covered by the warranty. - Page 34 Spare parts SPK 180 SFG 400 KV Item ID number Designation Quantity 8704510 Base body 8704511 Base jaw SFG 400 8704512 Spindle holding nut 8704513 Spindle 8704514 Seat of bearing 8704515 Holding piece 8704516 Slide 8704517 Bracket 9980207 O-ring DIN 3771 NBR 70 27.0 x 2.5 9907023 Compression spring VD 132 D 0.8 x 5.6 L0 = 43.0 9907336...
- Page 35 Spare parts SPK 220 SFG 630 KV Item ID number Designation Quantity 8704520 Base body 8704521 Base jaw SFG 400 8704522 Spindle holding nut 8704523 Spindle 8704524 Seat of bearing 8704525 Holding piece 8704526 Slide 8704517 Bracket 9980391 O-ring DIN 3771 NBR 70 30.0 x 2 9907023 Compression spring VD 132 D 0.8 x 5.6 L0 = 43.0 9907240...
- Page 36 Spare parts SPK 260 SFG 630 KV Item ID number Designation Quantity 8704528 Base body 8704529 Base jaw SFG 400 8704530 Spindle holding nut 8704531 Spindle 8704524 Seat of bearing 8704525 Holding piece 8704532 Slide 8704517 Bracket 9980391 O-ring DIN 3771 NBR 70 30.0 x 2 9907023 Compression spring VD 132 D 0.8 x 5.6 L0 = 43.0 9907240...
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Page 37: Assembly Accessories
Spare parts 10.1 Assembly accessories SPK 180 assembly accessories ID number 0899120 - suitable for machines with T-slots DIN 650 - M20 x 22 Item ID number Designation Quantity 9984760 Screw for T-slot DIN 787 – M20 x 22 x 80 - 8.8 9980035 Collar nut DIN 6331 M20 9985273... - Page 38 Spare parts SPK 260 assembly accessories ID number 0899140 - suitable for machines with T-slots DIN 650 - M24 x 28 Item ID number Designation Quantity 9984948 Screw for T-slot DIN 787 – M24 x 28 x 100 - 8.8 9980036 Collar nut DIN 6331 M24 SNT001339...
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Page 39: Assembly Drawing
Assembly drawing 11 Assembly drawing 04.00 | | Jaw boxes SPK | en | 0889015... - Page 40 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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