gst grinding image präsentation 2017 01 en
TRANSCRIPT
GST – Grinding technology
Passion, dedication and hard work 1992 GST is founded by former
employees of Elb-Heid-MSO (manufacturer of grinding machinery since 1979)
2011 The company expands its headquarters – the number of staff has increased to 50 employees
2016 The current workforce counts 79 employees and includes 7 trainees
2017 The production area and the office building are doubled in size
Our products and services
Design and manufacture of grinding machines for engine and transmission manufacturing in the automotive industry
Upgrading and overhaul of machine tools (grinders, lathes, milling machines,…)
Inspection, maintenance and repair of machine tools and their components
Technology
Tools: Corundum C grinding wheels Electroplated and vitrified bonded
CBN (Cubic Boron Nitride) grinding wheels
Grinding of: Diameters Plane surfaces Grooves
Non-round contour Surfaces
Dressing technology
Diamond blade dresser - for simple contours, small batch
sizes, great variety of parts, large removal, high
cost-efficiency Profile roll - for complex contours, large batch sizes,
no variety of parts, fast Form roll - for complex contours,
small batch sizes, great variety of parts, high accuracy
(State-of-the-art)
In-house tool spindle construction
Grinding spindle with precision bearing offering high stiffness and load capacity
Ceramic or steel bearing, as required Hydrostatic spindle bearing
possible Permanent oil-air lubrication Constant optimum ratio between
load distance and spindle bearing packages thanks to the in-house design
The following tolerances can be achieved with GST machine tools:
Tolerances
Diameter +/-4,5µm
Roundness 3µm Parallelism, surface 2µm Concentricity 2µm Roughness Rz 2
Overview of circular grinding machines
GST COMPLETE - Transmission / Powertrain
GST JET - Engine components
GST Service & Retrofit GST Automation & Accessories
GST COMPLETE / JET - Double Cycle
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
GST JET - Engine components
Grinding of:CrankshaftsCamshaftsBalancing shaftsRotor shafts (E-Mobility)Piston rings
Double-spindle orbital grinderDouble Jet Orbital CBN
Double Jet Orbital CBN
Double-spindle grinder for the simultaneous grinding of crankshaft main and pin bearings using CBN grinding wheels
Double Jet Orbital CBN
Grinding wheel feed movements up to 25 m/min and accelerations up to 4 m/s²
Feed drive with linear motor and direct linear encoder Hydrostatic slide guidance Each hydrostatic pocket is
supplied by a progressive volume controller
Double Jet Orbital CBN
Excellent damping properties and strong rigidity of the hydrostatic slide guides
Workpiece spindle with torque motor Workpiece drive synchronized
with rotary axis, for precise position control of the pendulum stroke movement
Hydraulically swivelling in-process measuring heads for diameter measuring
Double-spindle angular infeed grinderDouble Jet CBN
Double Jet CBN
Double spindle grinder for simultaneous grinding of crankshaft flanges and journals using CBN grinding wheels
Double Jet CBN
Simultaneous complete grinding of flanges, journals, balance shaft seats and encoder wheel seats of crankshafts
Centre drive for workpiece rotation Hydrostatic slide guidance and
linear drive technology possible Hydrostatic spindle bearings
optional Self-centering lunettes Cycle times of approx.
55sec/workpiece can be achieved
Double Jet CBN
Additional cross slide with internal grinding spindle for the simultaneous machining of the needle bearing hole (option)
In-process measurement for needle bearing holes (option)
Single-spindle straight infeed grinderSingle Jet Profile CBN
Single Jet Profile CBN
Single spindle straight or angular infeed grinder with CBN grinding wheels for non-circular contours
Optimal application for the cam contour of camshafts
Single Jet Profile CBN
Hydrostatic guidance system and linear drive technology
Designed for a production capacity of up to 1,200 parts/day in three-shift operation
Single-spindle straight or angular infeed grinderSingle Jet CBN
Single Jet CBN
Single spindle straight or angular infeed grinder with CBN grinding wheels for diameters
Optimal application for flanges, journals, balance shaft seats and encoder wheel seats of crankshafts as well as for main bearings of camshafts
Single Jet Profile CBN
Hydrostatic guidance and linear drive technology
Designed for a production capacity of up to 1,200 parts/day in three-shift operation
Single Jet CBN
Additional cross slide with internal grinding spindle for the simultaneous machining of needle bearing holes (option)
In-process measurement for needle bearing holes (option)
Single-spindle multi-wheel grinderMulti-wheel C
Multi-wheel C
Single-spindle multi-wheel grinder with flange-mounted wheel sets for the simultaneous machining of all main bearings
Multi-wheel C
Corundum grinding wheel set with flange mount, no counter support necessary
Stable spindle with roller bearing for grinding wheel sets of max. Ø 750 mm and 500 mm width
Designed for a production capacity of up to 1,200 parts/day in three-shift operation
Multi-wheel C
Short tooling times due to changing devices, the automated set-up and the automatic adjustment of the table assemblies
Tooling times <15 min can be achieved, making the machine optimally suited for small batch sizes
Grinding wheel magazine available as an option
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
GST Complete - Transmission / PowertrainFor the grinding of:Drive shaftsTransmission shaftsCountershaftsGear wheelsBevel pinion shaftsPlanet carriersAxle stubsOthers:Pump shafts, etc.
Double-spindle straight infeed grinderComplete C/CBN
Complete C/CBN
Double-spindle grinder using corundum grinding wheels for diameters and CBN wheels for plane surfaces and grooves
Complete C/CBN
For the complete grinding of diameters with corundum grinding wheel sets
Simultaneous straight infeed grinding of diameters, plane surfaces and grooves using electroplated CBN wheel sets
Cycle times of approx. 55-65 sec / workpiece can be achieved
Complete C/CBN
The use of corundum grinding wheel sets with a diameter of up to 750 mm and a width of up to 500 mm is possible
Automatic in-process cylinder compensation via measuring instruments
Path-controlled dressing allows the creation and the correction of different contours
Two-spindle universal grinding machineComplete Universal CBN
Complete Universal CBN
Universal grinding machine with 2-3 spindles on an NC rotary table with CBN grinding wheels
Complete Universal CBN
Complete grinding of the diameters and plane surfaces with vitrified bonded CBN wheel sets
Grinding of diameters and shoulders of transmission shafts with 2-3 spindles
Large grinding spindle permitting the use of wider wheel sets -> shorter cycle times
The use of 2 workpiece spindles facilitates machining of the entire workpiece length
Complete Universal CBN
100% In-process measurement is possible, contrary to single seat grinding
Post-process measuring station, parts cleaning stations, parts feeding, etc. can be integrated into the production cell
Designed for the production of small batches and of frequently changing products
Loading by integrated linear system or robot
Single-spindle straight or angular infeed grinderComplete C
Complete C
Single-spindle straight or angular infeed grinder with corundum grinding wheels
Complete C
Corundum grinding wheel sets with a diameter of up to 750 mm and a width of up to 500 mm can be used
Automatic in-process cylinder compensation via measuring instruments
Path-controlled dressing allows the creation and correction of different contours
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
Single spindle straight infeed & internal grinderComplete Gear CBN
Complete Gear CBN
Grinding of hole and outer contour of gears in just one clamping setup with 2 spindles
Complete Gear CBN
Grinding of hole and outer contour of gears in just one clamping setup with 2 spindles
Complete grinding of the hole and outer contour with a vitrified bonded CBN wheel set
In-process measurement is possible for hole and outer contour
Designed for a production capacity of up to 4,000 parts/day in three-shift operation
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
Half the cycle time for more outputDouble Cycle - Jet / Complete Half the cycle time for both machine types
Half the cycle time for more outputDouble Cycle - Jet / Complete
Two workpiece shuttle slides for the simultaneous machining, loading and unloading -> the clamping device moves
Double Cycle - Principle 1
Two clamping devices for simultaneous machining, loading and unloading -> the grinding spindle moves
Double Cycle - Principle 2
Double Cycle The GST Double Cycle machine replaces 2-3 conventional
machines which results in lower investment costs It requires less space, less energy and less operating supplies No non-productive times – times
for loading, unloading, clamping and unclamping are eliminated
Grinding with just one clamping setup with no need for reclamping
Designed for a production capacity of up to 1,600 parts/day in three shift operation
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
Automation The machine is suited both for stand-alone operation and
linked production lines Loading options: gantry loader, robot or manual loading Linear gantry loader
Accessories 1 Grinding wheel changing equipment Grinding wheel transport trolley Grinding wheel lifting- und turning equipment Grinding wheel magazine
Accessories 2 Blow-off station Vacuum station Centrifugal station
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
References
Customer-specific design and manufacture
Compact and robust construction Short grinding and cycle times Machining of parts with just one
clamping setup Two grinding wheels at the same time Automatic loading systems 3-shift production processes Very close tolerances
Solution
Time
Quality
Customized solutions
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
Overhaul-Modernization-RevitalizationService & Retrofit
Service & Retrofit
Modernization / overhaul of machine tools Approximately 20 to 50% lower cost compared to a new
machine tool Existing tools & technologies
can be reused The modernization of your
machine tool can be implemented at the GST plant, as well as at the customer's site
Service & Retrofit - References
Schaudt Fortuna MSO HEID LandisKarstens Reinecker Cincinnati Mori-Seiki Assy NOVA Naxos Okamoto Bryant Buderus Göckel Estarta
Prorectif Danobat Microsa Herkules FAG Kellenberger GST/Promot Heinrich Schmid Blanchard Nova BWF EHM ELB/GST Weisser Kehren SMW
TOS Kö-Bau Voumard Lidköping Hartex Meuselwitz Junker Wotan Tacchella Giustina Reishauer ABA Diskus
Grinding machines
Georg FischerDemoorDörriesWeisserEmcoMagdeburgVoestHEIDSkodaHeiligenstädtAtlasWeipertTosCordini�Binns BerryDiedesheimBöhringer
OkumaFrontorVoest EmagNilesPontiggiaColmecOkumaHardingePotise
Lathes
WMW-UnionTOSWOTANPräwemaKrauseThielenhausHüller HillePfauterLorenzSixisMazakNiigataGrobSafopStrojtosKehrenHohnsberg
MikronMori-SeikiZayerHeckertSacemEx-Cell-OHellerWeragMAHOBurkardt & WeberWitzig&FrankHagen
Milling machines –machining centers
Go to: Engine – Transmission / Drive train – Double Cycle – Auto. & Accessories – Retrofit – End
RepresentativesGermanyRainer BallesSchwalbenrain 11D-63584 NiedergründauTel. +49 (6058) 2928Fax +49 (6058) 919 939
People's Republic of ChinaGST Grinding TechnologyTaicang Office143 Yanshan RoadCN-215400 TaicangTel. + 86 138 14577784
FranceGST France27 rue de la HardtF-68740 BlodelsheimTel. +33 (0) 6 3221 6779 Fax +33 (0) 3 68 33 54 45
Czech RepublicNovitrade s.r.o.Miletínská 330/8CZ-197 00 Praha 9Tel. +420 603869557
ItalyGST ItaliaTel. +33 660 341 587
TurkeyEkonomak Co. Ltd.Yasamkent Sitesi A Blok Daire:13 TR-06810 YasamkentTel. +903122402565
Industriepark 62011 Sierndorf bei StockerauAustria
Phone: +43.2267.325032Fax: +43.2267.325099
www.gst.at
Reference