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Danobat vertical turning center

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The VTC range has been designed to create new high standards of turning and machining capability for users in the...

The VTC range has been designed to create new high standards of turning and machining capability for users in the
most demanding industries.
Proven performances in combining turning, milling, drilling and grinding operations with high precision and mass
productivity have created an important position for the VTC range in the following industries: aerospace, railways,
power generation, marine, large precision bearings, mining, valves and subcontracting.

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Danobat vertical turning center Danobat vertical turning center Document Transcript

  • VTC VERTICAL TURNING CENTRES
  • VTC VERTICAL TURNING CENTRES VERTICAL TURNING CENTRES preCision VTC VERTICAL TURNING CENTRES DANOBATGROUP is one of the largest machine tools and production systems manufacturers in Europe. For more than 55 years we have supplied machine tools and production systems to highly reputable customers establishing a worldwide presence. DANOBATGROUP is the machine tool division of one of the most prestigious Spanish industrial holdings, Mondragon Corporation with a workforce of 85,000 people, and more than 13.000 milion Euros in turnover. The VTC range has been designed to create new high standards of turning and machining capability for users in the most demanding industries. Proven performances in combining turning, milling, drilling and grinding operations with high precision and mass productivity have created an important position for the VTC range in the following industries: aerospace, railways, power generation, marine, large precision bearings, mining, valves and subcontracting.2|VTC
  • High precision, multifunction machineCONFIGURATION OF THE MACHINE VTCThe VTC machines are extremely rigid. The main elements of the machine such as the base, the column/columnsand the cross rail are ribbed castings providing a high degree of stability to the machine assembly. They are fullystress relieved prior to final machining to enable the machine’s structure to absorb the stresses and dampen thevibrations induced by cutting forces even under the heaviest cutting conditions. The RAM is made from a normalisedsteel forging, induction hardened and precision ground.The main spindle is driven from the motor through a two-speed “epicicloidal” gearbox. From this, the drive to thespindle is provided through a gear reduction transmission.A pressurised re-circulating oil lubrication system ensures adequate lubrication for the main spindle gearbox and thetable bearing. Additionally and to ensure thermal stability and minimise table thermal growth, an oil chiller unit isalso provided.The C axis positioning and repeatability, produces extremely high accurate parts during milling and drillingoperations.The positioning of the tool holders and milling heads into the RAM is made by means of a Hirth gear system. Thissystem guarantees the accuracy and repeatability during the tool change.The rotary tools are assembled into the milling heads, straight or angular, at 90º, providing an extremely rigidassembly. This results in high accuracy drilling, threading and milling operations.LATEST STATE OF THE ART TECHNOLOGY VTC accuracy Multifunction machine The VTC range is optimised to achieve excellent Combining turning, milling, drilling, grinding and machining results regarding dimension accuracy special measuring devices in a single machine and surface finish performing the best results tool has generated considerable interest in for X, Z and C axes positioning and reducing DANOBAT’s VTC range. DANOBAT has also deformations due to thermal expansion. designed and manufactured several special new heads/spindles for customised applications, such as head with Y axis and head with B axis. Thermal expansion DANOBAT has developed the VTC-H range in order to meet the market demand for the large diameter The machines design and their structural cast iron Vertical Turning Centres. components, enable a high thermal stability face to temperature changes caused by the main motor, Hydrostatic technology has been applied in the ram motor, etc. During every machine test, we following areas of the machine: check that those thermal expansions do not affect · Hydrostatic slideways are used in both the X and the quality of the machining. Z axes. · The table is supported radially and axially by hydrostatic elements. 3|VTC
  • VTC VERTICAL TURNING CENTRES VTC 1600/1800/2100/2500/2800/3200/4000 LEADING TECHNOLOGY: TABLE X AND Z AXES The rotary table is directly mounted on a high precision crossed roller bearing. The DANOBAT design enables highest accuracy and rigidity for hard vertical turning operations. The main crossed roller bearing is assembled one by one based on DANOBAT expertise in this field. The slide ways design is based on roller guidance system for both X and Z axes. These DANOBAT designs enable the maximum rigidity avoiding any stick slip effect and improving interpolation results. VTC-1600 and VTC-1800 range is developed with transmission movement by ballscrews. VTC-2100 and larger models are developed with double rack and pinion system instead of a ballscrew one. This rack and pinion system used by DANOBAT, eliminates any positioning error due to possible deformations of long ballscrews. The RAM design optimises thermal expansion and provides the maximum rigidity (in comparison to other RAM types, such as the octogonal one). The vibration and dampening mechanism developed by DANOBAT is fully integrated with the slideways and optimised to give the best turning results. ACCURACY RESULTS Due to the DANOBAT described design, the VTC range is optimised to give excellent turning results regarding dimension accuracy and surface finish, performing the best results for X, Z and C axes positioning and checked with ball bar and NAS tests.4|VTC
  • VTC-H5000-H/6000-H/8000-HLEADINGTECHNOLOGY:TABLE X AND Z AXESThe table is directly mounted on a hydrostaticbearing system. DANOBAT offers different range ofhydrostatic bearing systems depending on the axialload as well as the peripheral speed requestedcase by case. DANOBAT designs cover cases froma single hydrostatic axial bearing system todouble / triple systems. Additionally DANOBATdevelopments ensures an easy maintenance ofhydrostatic systems. The slideways design is based on full hydrostatic system for both X and Z axes. These DANOBAT designs enable the maximum rigidity for heavy turning work. The transmission system is developed with double rack and pinion system. This double system eliminates any positioning error due to the backlash and long ballscrew deformations. The RAM design optimises thermal expansion and provides the maximum rigidity (in comparison to other RAM types, such as the octogonal one). DANOBAT implements a full hydrostatic mechanism for the slideways offering maximum rigidity and vibration dampening.ACCURACY RESULTS TRAVERSEThe VTC-H range optimise the turning results regarding The DANOBAT designed traverse mechanismdimension accuracy and surface finish for heavy parts, optimises the possible deformation of this particularup to 150 Tn due to the DANOBAT described design, element of the VTC, heart of the machine. DifferentThese designs enable DANOBAT to increase this mechanisms compensate the deformation of thecapacity to larger parts, weights and dimensions. traverse due to the gravity effect. Firstly, the finite element calculation of the traverse, with its own weight compensation system reduces deformations. Secondly, the DANOBAT designed weight compensation actuators reduce the geometrical errors produced due to the gravity. 5|VTC
  • VTC VERTICAL TURNING CENTRES CUSTOMISED SPINDLES Tool holders for modular tools: Capto, KM... part probing system ATC (Automatic Tool Changer) Tool presetting system straight and 90º milling heads for live tools EQUIPMENT standard options · CNC: Fanuc / Siemens / Fagor · Hydraulic chuck · Automatic tool changers up to 120 tools · ‘T’ slotted table · Moving cross rail · Tool presetting system · Automatic tool changer (18 tools) · Live spindle · Part probing system · Fixed cross rail · C axis · Tool force monitoring and tool breakage detection · Hydraulic equipment · Two RAM models for maximum metal removal · Paper filter · Levelling pads · Straight and 90º milling heads for live tools · Full enclosure and fumes extractor · Automatic lubrication equipment · Grinding head · Automatic pallet loading system · Coolant through spindle6|VTC
  • 7|VTC
  • 8|VTC
  • TECHNICAL SPECIFICATIONS VTCCHArACTerisTiCs VTC-1600 VTC-1800 VTC-2100 VTC-2500 VTC-2800Table diameter mm 1400 1600 1800 2100 2400Turning diameter mm 1600 1800 2100 2500 2800Table speed rpm 400 360 320 260 200Table drive motor kW 55 (81)(105) 55 (81)(105) 55 (81)(105) 55 (81)(105) 55 (81)(105)Max. work piece weight kg 9000 12000 17000 20000 25000RAM size mm 250 x 250 250 x 250 250 x 250 250 x 250 250 x 250RAM stroke “Z” mm 1000 (1500) 1000 (1500) 1500 1500 1500Maximum height table to RAM mm 1500 (2000) 1500 (2000) 1800 (2600) 1800 (2600) 1800 (2600)RAM traverse “X” mm 1950 2150 2470 2870 3330Vertical travel of cross rail mm 800 800 800 800 800Live spindle power kW 22 (30) 22 (30) 22 (30)(37)(40) 22 (30)(37)(40) 22 (30)(37)(40)Live spindle speed rpm 3000 3000 3000 3000 3000Standard ATC tool 18 (2 x 18) 18 (2 x 18) 18 (2 x 18) 18 (2 x 18) 18 (2 x 18)Approx. weight kg 40000 45000 55000 70000 80000CHArACTerisTiCs VTC-3200 VTC-4000 VTC-5000-H VTC-6000-H VTC-8000-HTable diameter mm 2800 3500 4000 5000 7000Turning diameter mm 3200 4000 5000 6000 8000Table speed rpm 175 100 60 60 35 48 x 2 (71 x 2) 48 x 2 (71 x 2) 48 x 2 (71 x 2)Table drive motor kW 55 (81)(105) 55 (81)(105) (105 x 2) (105 x 2) (105 x 2)Max. work piece weight kg 30000 50000 80000 100000 150000 250 x 250 300 x 300 300 x 300RAM size mm 250 x 250 250 x 250 (300 x 300) (400 x 400) (400 x 400)RAM stroke “Z” mm 1500 1500 1500 (2000) 2000 (2500) 2000 (2500)Maximum height table to RAM mm 1800 (2600) 2000 (3000) 3250 (3600) 3600 (4650) 4650 (6200)RAM traverse “X” mm 3730 4600 5600 6600 8800Vertical travel of cross rail mm 800 1000 2000 2000(3500) 2000 (3500)Live spindle power kW 22 (30)(37)(40) 22 (30)(37)(40) 30 (37)(40) 37 (40) 37 (40)Live spindle speed rpm 3000 3000 3000 (2000) 2000 (1500) 2000 (1500)Standard ATC tool 18 (2 x 18) 18 (2 x 18) 18 (2 x 18) 18 (2 x 18) 18 (2 x 18)Approx. weight kg 90000 120000 150000 180000 220000 9|VTC
  • VTC VERTICAL TURNING CENTRES FLeXiBiLiTY: TURNING, MILLING, GRINDING, DRILLING, MEASURING VTC propeller machining ring turning / milling / drilling rotor turning Generator housing ring turning / grinding Mechanical industry turning / drilling / milling part turning / milling10|VTC
  • VTC Vertical turning centresrailway wheel turning Motor housing turning / drillingGear turning Aerospace motor compressor turning / grinding / measuring 11|VTC
  • OUR COMPANY, YOUR PARTNER In DANOBAT we offer a service to perform a machining test on our machines with your workpieces. You can check the capacity of our process team and DANOBAT machines, thus making an investment with a guarantee. next to the Customised customer from solutions: the beginning: 08/2011· Local sales service team at your disposal. · Customised machining · Tooling.· Production process analysis by local product engineers. solutions. · Software. This document is not a contract. DANOBAT reserves the right of making changes to all models without prior notice. The illustrations in this catalogue remain property of DANOBAT.· Feasibility analysis. · Improving machining · Acceptance trials machining· Technical & economical study. process study. customer’s parts. · Fixturing. project Together during management: the complete machine live:· Machine set-up & commissioning. · Technical assistance by · Hotline.· Personnel training. local service engineers. · Preventive maintenance.· Production assistance. · Teleservice. · Spare parts available.SPECIALIZED MULTI-TECHNOLOGICAL SOLUTIONSHorizontal lathes Vertical lathes Grinding machines Band sawing machines Composite and drilling units MoRe infoRMATion AbouT DAnobAT VTC VeRTiCAL ©DANOBAT 2011 TuRninG CenTReS AT www.danobatgroup.com If your mobile phone has the QR code reader tool you will be able to go directly to our site at www.danobatgroup.com DAnoBAT Tel.: + 34 943 74 80 44 Arriaga kalea, 21 Fax: + 34 943 74 31 38 E-20870 ELGOIBAR (Gipuzkoa) Spain sales@danobat.com www.danobatgroup.com