Related Manuals for SCHUNK MFT
Summary of Contents for SCHUNK MFT
- Page 1 Original manual Polishing Spindle Assembly and operating manual Superior Clamping and Gripping...
- Page 2 Imprint Copyright: This manual remains the copyrighted property of SCHUNK GmbH & Co. KG. It is solely supplied to our customers and operators of our products and forms part of the product. This documentation may not be duplicated or made accessible to third parties, in particu- lar competitive companies, without our prior permission.
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Page 3: Table Of Contents
7.4.2 Tool Position and Programming ..............23 8 Maintenance and repair ..................25 8.1 Routine Operational Maintenance ................. 25 8.2 Media Replacement ....................25 8.3 Boot Replacement ....................26 8.4 Air Motor Replacement ..................27 8.5 Sensor Replacement ....................28 01.00|MFT |en... - Page 4 8.7 Lubrication of the polishing spindle ............... 32 8.8 Storage and Preventive Maintenance during Storage ........... 33 9 Troubleshooting ...................... 34 9.1 Troubleshooting Matrix ..................34 10 Recommended Spare Parts ..................35 11 Drawings ......................... 36 12 Translation of original declaration of incorporation ..........40 01.00|MFT |en...
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Page 5: Glossary Of Terms
Vane Motor Media Air motor that drives the tool spindle. Term referring to tools and/or abra- sives held by the tool during the com- pletion of a manufacturing process. 01.00|MFT |en... -
Page 6: About This Manual
Non-compliance will inevitably cause irreversible injury or death. WARNING Dangers for persons. Ignoring a safety note like this can lead to irreversible injury and even death. CAUTION Dangers for persons. Non-observance can cause minor injuries. NOTICE Material damage Information about avoiding material damage. 01.00|MFT |en... -
Page 7: Applicable Documents
• Catalog data sheet of the purchased product * The documents marked with an asterisk (*) can be downloaded on our homepage www.de.schunk.com. Variants This operating manual applies for the following variations • Polishing Spindle-MFT • Polishing Spindle-MFTNL 01.00|MFT |en... -
Page 8: Basic Safety Notes
Basic safety notes Basic safety notes Intended use The Polishing Spindle MFT is intended to perform robotic and non- robotic material finishing operations. The product is intended for installation in a machine/system. The requirements of the applicable guidelines must be observed and complied with. -
Page 9: Product Safety
Basic safety notes • Be aware of high sound levels. While the Polishing Spindle MFT air motor is not loud, the cutting action associated with many processes frequently is. Always use hearing protection while working in the neighborhood of the production cell. -
Page 10: The Use Personal Protective Equipment
• Observe the applicable safety accident prevention regulations. • Use protective gloves for sharp edges, sharp corners and rough surfaces. • Use protective gloves for hot surfaces. • Use protective gloves and googles when handling hazardous substances. • Wear tight protective clothing for moving components. 01.00|MFT |en... -
Page 11: Transportation And Protection During Transportation
• Make sure that the MFT is mounted as described in this manual. • Never use the MFT for any purposes or in any ways not explicit- ly described in this manual. -
Page 12: Warranty
Warranty Warranty The warranty of the Polishing Spindle MFT is valid for 24 months. This does not apply to the air motor. The air motor is warranted for a period of 2000 hours or one year of operation from date of delivery from the production facility, whichever occurs first. -
Page 13: Scope Of Delivery
Scope of delivery Scope of delivery The scope of delivery includes • Polishing Spindle MFT in the ordered model 01.00|MFT |en... -
Page 14: Technical Specifications
Sspindle air pressure (max.) [bar] Air consumption (max.) [l/s] approximately 9 Oil consumption Approx. 3–4 drops of oil per (not valid for MFT 390-NL) minute (1 drop = 15mm ) by oil fog at max. air consumption Ffast Tightening Chuck size 3/8 "... - Page 15 The idle speed of the motor will be its maximum as no load is applied. This will drop to a lower operating speed where it will develop the maximum torque. If the torque required ex- ceeds the maximum available, the motor will stall. 01.00|MFT |en...
- Page 16 Technical Specifications Motor Torque Curves Motor Power Curves 01.00|MFT |en...
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Page 17: Description And Function
Po- lishing Spindle MFT as possible. NOTE Never use the MFT in a manner to produce radial loads. Avoid us- ing the MFT for countersinking or drilling. 01.00|MFT |en... -
Page 18: Spindle Operation And Media Selection
Description and function Spindle Operation and Media Selection When used with flexible abrasive media, the Polishing Spindle MFT will perform best when the rotating media approaches the burr in a direction that will fold the burr back on itself. This will allow the media to remove material rapidly without excessive force and without the creation of a secondary burr. -
Page 19: Assembly And Installation
To prevent contaminant damage to the air motor, all air lines should be blown down to remove debris prior to connection of the MFT. Water damage of the air motor or damage associated with debris in the air lines is not covered under warranty. - Page 20 Assembly and Installation Connection Connect the Polishing Spindle MFT as shown in the following figure. Pneumatic Connections The air supply should be dry, air filtered, and lubricated ( 5, Page 14). A high-flow air pressure control regulator is required to supply the spindle motor at 6.2 bar.
- Page 21 14). The compliance force air supply pressure regulator should be ad- justed between 0.34–4.1 bar. When testing for the proper contact force, start with a very low pressure and increase slowly until the desired process result is achieved. 01.00|MFT |en...
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Page 22: Electrical Connections
Assembly and Installation Electrical Connections The Polishing Spindle MFT tool can be equipped with up to three sensors to monitor spindle position and speed. These include the Forward, Retract, and Tachometer sensors. Each sensor is a PNP (sourcing) type proximity switch using three wire electrical hook-up. -
Page 23: Initial Operation
Select media and media holders that position the work piece as close to the Polishing Spindle MFT as possible. 7.4.2 Tool Position and Programming The Polishing Spindle MFT dimensions are provided in the draw- ings in ( 11, Page 36). The MFT provides axial compliance and performs best when the spindle is displaced through approximate- ly one-half of its allowable travel (approximately 8 mm). - Page 24 Verify that at operational speed the media is deflected but con- tacts the work surface. Once the path has been confirmed, the compliance force of the media should be adjusted as described in ( 7.2, Page 19) in order to achieve the desired finish. 01.00|MFT |en...
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Page 25: Maintenance And Repair
( 11, Page 36). Media Replacement The Polishing Spindle MFT unit ships with a simple drill chuck to hold customer-supplied media. A standard chuck key is used to loosen and tighten the chuck. When tightening the chuck, insert and turn the key into each of the three holes around the chuck's perimeter. -
Page 26: Boot Replacement
2 Slip the boot over the moving motor mount plate and onto the main housing. 3 Position the boot so its locking surfaces engage the grooved boss on both the moving plate and the main housing. 4 Refit both o-rings to secure the boot. 01.00|MFT |en... -
Page 27: Air Motor Replacement
Maintenance and repair Air Motor Replacement The air motor oft the variant MFT-390 must be operated using lubri- cated air or it will fail and require replacement. The air motor of the variant MFT-390-NL should not be operated with lubricated air. -
Page 28: Sensor Replacement
10 Reinstall the desired air supply fittings as appropriate. Sensor Replacement The Polishing Spindle MFT may be outfitted with up to three prox- imity sensors. These sensors may be monitored by the customer to determine the following information. -
Page 29: Sensor For Monitoring: Spindle Extracted (Option-F)
9 With the spindle pushed all the way forward, turn the target socket head screw counter clockwise until the sensor just turns OFF. 10 Turn the target screw one complete turn clockwise. 11 Refit the stainless steel button head screw. 01.00|MFT |en... -
Page 30: Sensor For Monitoring: Spindle Retracted (Option-R)
The tachometer option is for process development. The thin target disk may be damaged in a production environment. Once process development is complete, the customer is advised to remove the target disk from the spindle or to insure that nothing can acciden- tally strike the target. 01.00|MFT |en... - Page 31 This is normal and ac- ceptable. 5 Tighten the sensor jam nut. DO NOT USE EXCESSIVE TORQUE ON THIS NUT. Tighten the nut finger-tight followed by an ad- ditional 1/12 turn with a wrench. 01.00|MFT |en...
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Page 32: Pneumatic -Lines/-Connections
Maintenance and repair Pneumatic -lines/-connections The air tubing/lines to the MFT should routinely be checked for their general condition and replaced as required. The lines must be highly flexible to allow free axial motion of the tool. MFT-390 The air to the tool must be filtered, dry, and lubricated. The air fil- ters should be checked and replaced as required to maintain opti- mum performance. -
Page 33: Storage And Preventive Maintenance During Storage
For short-term storage, the tool should be stored in a dry place in its crate when it is not in use. For long-term storage, the Polishing Spindle MFT should be tho- roughly cleaned of any burrs, dust, or debris. To protect the air motor, the user may wish to inject several drops... -
Page 34: Troubleshooting
Media is not secure in collet Properly tighten chuck Too much compliance force Decrease width of cut/make mul- tiple passes Compliance exceeded Examine/correct path Sticking spindle Guide rods and pistons Remove boot, clean and lubricate contaminated rods. 01.00|MFT |en... -
Page 35: Recommended Spare Parts
Recommended Spare Parts Recommended Spare Parts For repair and spare parts please contact SCHUNK. For an ex- ploded drawing showing all the components of the MFT, see ( 11, Page 36). 01.00|MFT |en... -
Page 36: Drawings
Drawings Drawings 01.00|MFT |en... - Page 37 The sensor is "ON" when the spindle is fully forward and not con- tacting the workpiece. Option T - Tachometer Sensor option Designation ID number MFT-390 OPTION T 0322261 NOTE • Not Available on Models with Collet Bodies • The tachometer sensor delivers "OFF" pulses per revolution to be monitored by the customer's process equipment.
- Page 38 Drawings Option R - optional sensor for monitoring: Spindle retracted Designation ID number MFT-390-OPTION R 0322262 NOTE The retract sensor is "ON" when the spindle is fully backward (Pushed backwards to the limit of travel). 01.00|MFT |en...
- Page 39 • Fasteners on this drawing include both torque and thread lock- er specifications. Thread locker (Loctite) is not required when using new "blue" fasteners purchased from SCHUNK. Thread locker is required anytime fasteners are being re-used. • M8 Set Screw is used if no tachometer kit is installed. Apply Loctite-222 to set screw and install flush with metal plate.
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Page 40: Translation Of Original Declaration Of Incorporation
Translation of original declaration of incorporation in terms of the Directive 2006/42/EG, Annex II, Part 1.B of the European Parliament and of the Council on machinery. Manufacturer/ SCHUNK GmbH & Co. KG Spann- und Greiftechnik Distributor Bahnhofstr. 106 – 134 D-74348 Lauffen/Neckar...
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