NUMERIKA - Grinding Machines And Filtration Systems .
NUMERIKACYLINDRICAL GRINDING
FIRST-CLASS SHAFT GRINDINGUSEADVANTAGES Precise grinding with corundumHigh productivity through short cycle timeFlexibility when grinding workpiece familiesAutomatic loading and unloading systems adapted to customer requirementsHigh degree of automation for integration in production linesIn-process and/or post-process measurementRecording of error messagesRugged machine bed with full-protection hoodCNC control system with user-friendly interfaceAPPLICATION EXAMPLESVersatile, rugged, long-life – the cylindrical grinding machines of theNumerika series meet any requirements for the series production ofa broad range of workpieces; in the largest version up to a lengthof 3.70 m. A torsion-resistant machine bed, hydrostatic guides andgrinding spindles mounted on rolling or hydrostatic bearings providefor perfect grinding results. The user-friendly control system offersall required input screens for grinding with corundum.2ZEMA NUMERIKANUMERIKA ZEMA3
EQUIPMENTWHEELHEADDRESSING UNIT Insensitive to vibrations and low maintenance thanks to spindle mounted on hydrostaticbearings Peripheral speed: 45 (60) m/s Different wheelhead versions (fixed or can be swiveled) for straight or angular plungecuts (0 – 30 ) as well as high-resolution B-axis Automatic compensation of grinding wheel diameter after dressing Single-grain diamond or dressing fleece (standard) Rotating dressing (optional):– Diamond profile grinding wheel or– Diamond shape rollerWORKHEADMEASURING Measurement systems are adapted to the workpieces and customer specifications In-process measurement device for measuring smooth or uninterruptedexternal diameters Large diameter measuring range possibleWith either dead or live centerRolling or hydrostatic bearingsSpeed programmable in a range from 20 to 1,000 rpmMaximum permissible workpiece weight: 80 – 350 kgTAILSTOCKPOSITIONING Hydraulically controlled tailstock sleeve with adjustable axial pretension Precision adjustment of taper 0.15 mm CNC-controlled positioning of the tailstock (optional) for rapid machine retooling Automatic recording of reference surfaces on the clamped workpiece throughbidirectional positioner Recorded values are automatically integrated into the grinding process Retractable integration on the wheelhead Switching probe for precise workpiece detectionFFAFFBFFHYDROSTATIC GUIDECONTROL SYSTEM Fanuc (standard) or Siemens (option) NUMERIKA software developed especially for the requirements of externalcylindrical grinding Easy programming, installation and operation of the machine thanks tostandard ISO programming Ergonomic machine setup through the machine control in a pivotable and movable*control panel (*from platform 1500)Use in the X and Z-axis, designed as compound slide restsUniform, jolt-free movement (no stick-slip effect)Drive via servomotors with absolute encodersHigh-precision positioning for precise grinding resultsA – Moving slide / B – Fixed guide / F – Force appliedHYDROSTATIC BEARINGSF Use in radial and axial bearings of wheelheads and workheads Perfect rotational movement and constant centering of shaft Vibration-dampingA – Housing / B – Shaft / F – Force appliedMACHINE BED With gray cast iron design High torsional rigidity and good damping behavior Proven quality4ZEMA NUMERIKAAFBFOPTIONSF Electronic longitudinal positioningPositioned spindle stopSteadiesStructure-borne sound sensorGrinding spindle with dynamic balancing systemPost-process measuring systemExhaust-air purification systems from LTACoolant systemsInternal and external loading systems according to customer requirementsNUMERIKA ZEMA5
TECHNICAL DATAPLATFORMAVAILABLE WHEELHEAD VERSIONSGL 600G 500G 800GL 1200OD1A / OD3A / OD5C / OD5E / OD6CG 1500G 2000G PLUS(500 - 2000)GH 1000GH 1500GH 500OD1A / OD3AOD6EOD1A / OD3A / OD6EGH 3000GH 3500OD1E / OD1F / OD1G / OD1H / OD6EGRINDING LENGTH600 mm1.200 mm500 mm800 mm1.500 mm2.000 mmsee G series500 mm1.000 mm1.500 mm2.000 mm2.500 mm3.000 mm3.500 mmCLAMPING LENGTH800 mm1.400 mm600 mm900 mm1.600 mm2.100 mmsee G series600 mm1.200 mm1.700 mm2.200 mm2.700 mm3.200 mm3.700 mm140 mmCENTER HEIGHTWORKPIECE WEIGHT140 mm80 kg120 kgGRINDING WHEEL DIAMETER120 kg230 mm180 kg250 kg230 mm150 kgsee G series250 kg350 kg275 mm275 mm450 mm450 mm406 x 152 mm508 x 203,2 mm610 x 203,2 mm760 (915) x 304,8 mmPERIPHERAL DIAMETEROUTPUT OF GRINDING WHEEL MOTOR5,5 (7,5) kW5,5 (7,5) kW7,5 (11) kW7,5 (11) kW7,5 (11) kW15 kW18 (30) kW18 (30) kW18 (30) kW18 (30) kWGRINDING WHEEL WIDTH50 (80) mm50 (80) mm80 (100) mm80 (100) mm80 (100) mm80 mm150 mm150 mm150 mm150 mmWORKPIECE SPINDLE: PROGRAMMABLE SPEED1.000 U/min1.000 U/min600 U/min600 U/min600 U/minsee G series500 U/min500 U/min500 U/min500 U/minWORKPIECE SPINDLE: INTERNAL MORSE TAPER44555see G series5555TAILSTOCK SLEEVE: INTERNAL MORSE TAPER44444see G series555535 mm35 mm35 mm35 mm35 mm35 (60) mm60 mm60 mm60 mm60 mmTAILSTOCK SLEEVE: CORRECTION OF taper 0,15 mm 0,15 mm 0,15 mm 0,15 mm 0,15 mmsee G series 0,15 mm 0,15 mm 0,15 mm 0,15 mmINSTALLED TOTAL OUTPUT15 (17) kW15 (17) kW17 (22) kW17 (22) kW17 (22) kW25 kW30 (45) kW30 (45) kW30 (45) kW30 (45) kWTAILSTOCK SLEEVE: Stroke lengthFanuc 0i TDFanuc 0i FCNC CONTROL SYSTEMW x D x H (without peripherals)TOTAL WEIGHT OF MACHINEFanuc 0i TDFanuc 0i FFanuc 0i TDFanuc 0i Fsee G series2.905 x 2.045 x 2.0403.745 x 2.045 x 2.0403.380 x 1.960 x 2.0003.730 x 1.960 x 2.0004.430 x 1.960 x 2.0005.130 x 1.960 x 2.000see G series3.660 x 3.150 x 2.4254.160 x 3.150 x 2.4254.660 x 3.150 x 2.4255.160 x 3.150 x 2.4255.660 x 3.150 x 2.4256.160 x 3.150 x 2.4256.660 x 3.150 x 2.4255.000 kg6.000 kg6.000 kg6.500 kg8.000 kg9.000 kgsee G series11.000 kg13.000 kg15.000 kg17.000 kg18.500 kg20.000 kg23.000 kgWHEELHEAD VERSIONSAXIS /EC/E0 - 30 0 – 180 RESOLUTION1.25 0 – 210 RESOLUTION0.0001 0 20 30 zxGrinding spindle hydrostatic bearings6GH 2000GH 2500ZEMA NUMERIKAGrinding spindle with roller bearingsGrinding spindle with roller bearingsGrinding spindles with roller bearingsSwiveling manualzzxSwiveling automatic withHirth serrationxzxzzxxSwiveling automaticwith B axisNUMERIKA ZEMA7
EUROPEJunkerstraße 277787 NordrachGermanyErwin JunkerGrinding Technology a.s.Plant HolicePardubická 332534 01 HoliceCzech RepublicErwin JunkerGrinding Technology a.s.Russia Branch OfficeProspekt Tolbukhina 17/65150000 YaroslavlRussian Federationinfo@junker.de 49 7838 84-0info@junker.cz 420 466 003-111info@junker-russia.ru 7 4852 206121Erwin JunkerMakina Sanayi Ticaret LTD. ŞTİ.Esentepe Mah.Milangaz Cad. No:75MonumentoKartal/IstanbulTurkeyLTA Lufttechnik GmbHJunkerstraße 277787 NordrachGermanyLTA Industrial Air CleaningSystems s.r.o.Lidická 66252 68 StředoklukyCzech Republicinfo@lta-filter.com 49 7838 84-245www.lta-filter.cominfo@lta-filter.com 420 233 012-113www.lta-filter.comErwin Junkerde Mexico, S. de R.L. de C.V.Blvd. Bernardo Quintana #7001Torre 2, #1203Centro Sur QuerétaroQro., C.P. 76079MexicoErwin JunkerMáquinas Ltda.Estrada do Capivari 751Cep 09838-900S.B. do Campo, São PauloBrazilErwin JunkerMaschinenfabrik GmbHinfo@junker-turkey.com.tr 90 216 5042811AMERICAErwin JunkerMachinery, Inc.2541 Technology Drive, #410Elgin, IL 60124USAinfo@junker-usa.com 1 847 4880406info@junker.com.mx 52 442 1995111LTA Industrial Air CleaningSystems, Inc.2541 Technology Drive, #410Elgin, IL 60124USAinfo@lta-filter.com 1 847 4880406www.lta-filter.cominfo@junker-group.com.br 55 11 4153-9645 55 11 4397-6008ZEMA Zselics Ltda.Estrada do Capivari 741Cep 09838-900S.B. do Campo, São PauloBrazilzema@zema.com.br 55 11 4397-6000www.zema.com.brASIAErwin JunkerMaschinenfabrik GmbHShanghai Representative OfficeUnit 1003, Floor 10Tower II Kerry Ever Bright CityEnterprise CenterNo. 209 Gonghe Road200070 ShanghaiP.R. Chinainfo@junker.com.cn 86 21 61438528Section D, Floor 6, Building 16#No.69 Xi Ya RoadWaigaoqiao Free Trade Zone200131 ShanghaiP.R. ChinaErwin JunkerMaschinenfabrik GmbHIndia Branch OfficeOffice No. 104, City Square29-2, K.M. Gandhi PathBhamburda, Shivaji NagarPune 411 005Indiaservices@junker.com.cn 86 2150 463525info@junker.in 91 20 255338-96Erwin Junker Machinery(Shanghai) Co., Ltd.www.junker-group.comEN 09/2017 – We reserve the right to make changes in the interests of technical progress. All information supplied without guarantee.
0 - 30 c e f 0 g 20 h 30 x z x z x z x z x z od3 od6 a/e/f/g/h a/c/e/f/g/h c/e od5 c/e available wheelhead versions grinding length platform clamping length center height workpiece weight peripheral diameter grinding wheel diameter output of grinding wheel motor workpiece spindle:
29. Grinding Machines Grinding Machines are also regarded as machine tools. A distinguishing feature of grinding machines is the rotating abrasive tool. Grinding machine is employed to obtain high accuracy along with very high class of surface finish on the workpiece. However, advent of new generation of grinding wheels and grinding machines,
Grinding wheel selection, Qw, Vw Wheel dressing parameters Limitations of on-board inspection Grinding Wheel 101 Grinding wheel definitions and descriptions Dressable and Non-dressable grinding wheels Tool wear Hands on Lab or Gear Grinding Simul
different operations like turning, threading, tapper grinding, end drilling etc. The plant has the capacity to do most of operation except taper grinding. Presently the plant has to outsource the shaft to outside plant for the taper grinding. presently the plant have a grinding machine of G 17-22U, which means it is a universal grinding machine that can machine a job up to 220mm diameter shaft .
difficult to grind than conventional structural steel. In order to achieve successful results when grinding tool steel, it is necessary to choose the grinding wheel with care. In turn, choosing the right grinding wheel and grinding data requires an understanding of how a grinding wheel works
-Surface speeds involving grinding are very fast. 3 types of action Cutting, rubbing and plowing actions occur (a) (b) Grinding Process. Grinding Forces A knowledge of grinding forces is essential for: -Estimating power requirements. -Designing grinding machines and work-holding fixtures and devices. -Determining the deflections .
32 Storage of Grinding Wheels 32 DressiNG WiTH DiamOND DressiNG 33TOOLs Basic Guidelines 33 . Twin Wheel Surface Grinding 66 beNcH, fLOOrsTaND, sWiNG frame macHiNe 67 . and also of CNC tool grinding machines for grinding
The material is held in place while the grinding surface moves across or is lowered into the material. Creep feed grinding is an adaptation of surface grinding which introduces a moving stock material into the path of a rotating abrasive wheel. This system then removes the material to the level of the grinding surface and no further.
ISO 14001:2015 – Why was the standard revised? Technically sound basis - should be based on proven management practices or existing scientifically validated and relevant data. Easily understood - should be easily understood, unambiguous, free from cultural bias, easily translatable, and applicable to businesses in general. Free trade - should permit the free trade of goods and .
