TTB Tool Grinding Machines

HIGHEST PRECISION ON A SMALL FOOTPRINT AND HIGH PRODUCTIVITY.

RESULTING FROM 30+ YEARS OF TTB EXPERIENCE IN THE GRINDING FIELD OF DRILLS, END MILLS, FORM CUTTERS, GEAR CUTTING TOOLS AND SPECIAL COMPONENTS.

TTB engineers and builds High-Precision Tool Grinding Machines and supplies application technology for tools in carbide, CBN, Ceramics, HSS and other materials in a diameter range from 0.02 to 14 mm.

TTB customized solutions include

Special clamping units
Special loading systems
Steady rest and shank guiding units for the improvement of the runout
Vision units for the orientation of blanks with internal coolant holes and tool positioning
Measuring systems with probe or laser technology
HF spindles (60-100-150.000 rpm) for grinding with small diameter wheels
Special handling and assembly units

OPENING UP NEW MARKETS WITH THE “NEXT TTB MACHINE”

Tools in the diameter range from 14 to 0.02 mm in optimum quality
Consistent accuracy even after many years thanks to unique TTB mechanical axes drive system.
Revolver with 4 or 5 grinding spindles and repeatability smaller 0.3µm
Short changeover times because of the use of modular components
High mechanical reliability and extremely low downtime
Optimum TCO (Total Cost of Ownership) thanks to reduced price of the machine and low maintenance costs.

Tool Data:

Gear Cutting Tools:

Min. tool diameter Ø 0.02 mm
Max tool diameter Ø 14 mm
Max grind length 100 mm
Resharpening Ø 3 – 25 mm

Hobs (ranges):

Diameters 6-40mm
Lengths 3-50mm
Modules 0,03-1

Shaper cutters/Power skiving (ranges):

Diameters 10-40mm
Lengths max 20mm
Modules 0,03-1

Tools:

Hobs, shaper cutters and power skiving (gearing)
End Mill Cutters
Form Cutters
Drills, step drills
Taps
Turning tools
Cutting blades
Indexable inserts
Stamps, punching tools
Burrs

Materials:

Carbide
CBN
Ceramics
HSS
Others

Technical Features:

Automatic loading: loading blank and unloading tool in 13 seconds
Automatic loading for standard collets or hydraulic chuck (automatic clamping – NEW)
U axis with Direct Drive – Clamping of cylindrical parts or special forms
Spindle motor 10 kW
Spindle change-over: repeatability less than 0.3 µm axial and radial and in less than 3 seconds
Each spindle can mount up to 3 grinding wheels
Backlash free linear axes with unique TTB axis drive system
High-precision drive spindles, hydrodynamic lubrication and hydraulic backlash-free compensation (preload)
Rotary axis V: Direct drive with high resolution encoder
All axes X-Y-Z-V-U with direct high-resolution measuring systems - glass scales and direct encoders (+/- 0.01µm or +/- 2“)
Multi-pallet loader from 2 to 4 pallets for high capacity
Pallets for diameters from 1 to 20 mm and up to 814 workpieces. Special pallets for non-cylindrical forms.
NUM control with NUMROTOplus® software
Extensive accessories and special units for flexible expansion options

Steady Rest:

The fully automatic steady rest is used for grinding tools with ratio L/D (length/diameter) bigger than 10 times. The radial mounting position of the steady rest can be adjusted in 15 ° increments, this in order to find the optimal position. Assembly and set-up are achieved quickly by a simple procedure and with fewer steps. The support prisms and bushings are clamped by a quick clamping system and can be aligned according to the tool taper.

Loader:

Thanks to the newly developed loader, automatic loading time has been extremely improved. For this purpose, the new double gripper clamps round shafts from 1 to 16mm. The standard version of the loader has 2 pallets for ∅1-16 mm. Optionally, 3 or 4 pallets is also possible. Depending on the shank diameter, the pallets can hold up to 814 tools. Specific solutions such as special pallets or special loading operations can be provided upon request.

CONTINUITY IN KINEMATICS - REFINED AND OPTIMIZED IN THE DETAILS

Stability, accuracy and reliability
are the most important attributes for the NEXT model. Due to particularly short set-up times, NEXT is very suitable for small or large batches that have long cycle times where high quality is guaranteed. An extensive array of accessories is available for your production needs (e.g. tailstock, steady rest, shank guide, HF spindles, push-on and turning units), allowing gear cutting tools, blades, punches and inserts to be produced. In an automatic mode of grinding, drills and milling-type tools are easily managed without difficulty. Due to the new placement of the automatic loading unit, the footprint is relatively a square consisting of 4m2.

Dynamics :
The previous and proven TTB drive concept of a calibrated preload and hydrodynamically lubricated axes integrated into the new NEXT has been further optimized. By doubling the rapid traverse speed and incorporating a newly developed direct-drive swivelling axis, the productivity result of the machine is increased even more. The U axis can be equipped with belt drive or, as option, with direct drive.

Temperature Stabilization System :
The temperature of the machine kinematics is controlled by internal cutting oil. This results in short warm-up times and very high stability of the temperature. Cutting oil and hydraulic oil mark temperature difference <1°C. The temperatures of the cutting oil, of V axis and spindle motor are monitored and recorded continuously. Additional temperature sensors can be installed to monitor the whole kinematics.

Monitoring machine status :
The TTB Dashboard allows to keep monitored counters, alarms, machine status in local or remote mode. The Industry 4.0 can be easily installed in customized versions.

HP transmission :
The new power transmission concept results in increased power that is transferred to the spindles with simultaneous vibration reduction. This allows the production of tools up to Ø14 mm (Ø9/16”) without any limitations. The grinding wheel turret has an indexing accuracy of only 1/3 of a micron. It is equipped with up to 5 spindles, and with each spindle capable of having up to 4 grinding wheels. The grinding wheel turret is still the core component of the NEXT.