TTB-Highest precision quality without compromise
|Application||Tool Diameter Range while Grinding from Solid Material||Ø 0,02 - 12 mm|
|Tool Diameter Range while Regrinding||Ø 3 - 25 mm|
|Max. Flute Grinding Length||max. 150 mm|
|Linear axes||X-axis Longitudinal Travel Length||290 mm|
|Y-axis Cross Slide Travel||250 mm|
|Z-axis Vertical Travel Length||150 mm|
|Swiveling axis||V-axis Swiveling Range of Tool Workhead||230 °|
|Rotary axes||U-axis Rotation Range of Tool||infinite|
|U-axis Rotary Speed while Cylindrical Grinding||0 - 1.500 1/min|
|Feed rates||X-Y-Z Linear Axes||3 m/min|
|V-axis Swiveling Speed of Tool Spindle||10.000 °/min|
|U-axis Rotary Speed while in Positioning Mode||36.000 °/min|
|Minimum Positioning Increment||X-Y-Z Linear Axes||0,0001 mm|
|U-V Rotary Axes||0,0001 °|
|Accuracy of the measuring systems||X-Y-Z-axes Linear||0,01 µm|
|Swivel axes (V-axis)||+/- 2''|
|Rotation axis (U-axis)||+/- 20''|
|Turret and wheel grinding spindles||Number of Grinding Wheel Spindles (HSK C32)||4|
|Power of the Grinding Motor (S1)||10,0 kW|
|Spindles speed range||bis 12.000 1/min|
|Number of Possible Grinding Wheels per Spindle||1 - 3|
|Spindle-to-Spindle (Turret) Indexing Time||3 sec.|
|High frequency spindles, optional||60.000 1/min|
|Tool clamping||Clamping systems||W25, W20, B15 /
|Tool Shank Clamping Diameter Range||1 - 25.4 mm|
|Tool Overall Clamping Length||up to 250 mm|
|Optional Clamping Systems||upon request|
|Dimensions of Machine||L x W x H||290 x 180 x 225 cm|
|Weight||ca. 3.300 kg|
TTB reserves the right to make changes and/or additions to the information provided, such as technical specifications, design changes without prior notice.
The Evolution consists of 2 groups of axes, the grinding unit and the workhead unit. They are mounted onto an extremely firm cast iron base plate. The base plate is supported by special anti-vibration pads, to avoid interferences from external sources.
The grinding unit (Y-axis) (please also change in the DE version, no A axis, only Y) controls movement of the grinding wheels. The workhead unit (U, V, X and Z- axes) controls movement of the tool. The U-axis has dual functionality: it can be used as a positioning axis or a free-turning spindle (used when cylindrical grinding).
This kinematics allows the wheels to grind above or below the tool. The machine assemblies are supplied with tempered oil in order to reduce the heat transfer.
The heart of the machine is the grinding wheel turret with 4 spindles. Each spindle can be equipped with up to 3 wheels. This gives the machine significant advantages:
The tools can be ground in one clamping and with the highest degree of precision. Additionally, the linear axes have a “one of a kind” motion-driving system; a combination of hydrodynamic technology and a calibrated preload. The conclusion: guaranteed, unparalleled repeating accuracy and backlash-free movements.
For setup of the Evolution, several versions of modular components are available, such as steady rests or blank guides, loading solutions, camera, clamping systems, tailstock and grinding wheel spindles.
This allows individual configurations and optimization of the machine for a specific grinding task.
Changing of the modular units occurs easily and quickly.
The grinding wheels can be trued and measured while mounted inside the machine.
Profitability through high automation
The machine can be equipped with an automatic tool loading unit, allowing 24/7 un-manned operation.
The loader can be configured in different versions with 2, 3 or 4 pallets. Customized pallets can be provided upon request.
Standard pallets can accommodate up to 814 workpieces ranging from 1 to 16 mm, depending on the diameter.
The loader is equipped with two precise CNC axes and with pneumatic swivel and clamping units.
During a single loading sequence, a new blank is taken from the 1st pallet by gripper #1. It positions itself at grinding entry door and waits. Upon completion of the current grinding cycle, the tool loading unit enters the machine. The finished tool is removed from the collet by gripper #2. The new blank in gripper #1 is inserted into the collet and clamped accordingly. The complete gripper unit then exits the machine and places the finished tool into pallet #2.
The fully automatic steady rest is designed for tools having grind lengths in the range of 10x to 15x of the diameter. The radial mounting position of the steady rest can be adjusted in 15 ° increments, thus the steady rest can be used either above or below the tool (see illustrations).
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.
High frequency spindle
The high frequency spindle is used for the grinding of pockets of inserts and for grinding with small diameter wheels. The HF spindle is mounted in one of the spindle turret positions.
The turret can be equipped with up to 4 HF spindles. TTB can also supply pneumatic HF spindles of 60,000, 100,000 and 150,000 1/min. The conversion from a standard to an HF spindle or vice versa takes place in under 3 minutes!
The shaft guide optimizes the concentricity of the tools by guiding the shaft on a v-block with a counterholder. The counterholder can be mounted on the left or right and is equipped with a v-block so that the blank rotates symmetrically.
IC Detect (Internal Coolant Hole Detection)
This high-resolution camera unit is used to locate the indexing position of coolant hole channels in blanks.
This system is integrated in the loading unit, the necessary measurements are carried out in the non-productive time of processing.
The smallest hole diameter which can be reliably detected is Ø 0.05 mm (tool diameter max Ø 6.00 mm)
Numrotoplus® programming system
NUMROTOplus® has optimal and efficient programming and support functions and includes powerful 3D simulation and precise collision monitoring. Company-specific technology databases can also be created. This enables optimal adaptation to a wide range of production strategies and the best utilization of customer-specific programming and operating know-how. Software updates are available free of charge for the entire service life of the machines.
TTB supplies peripherals, accessories and special units upon request:
The following tools can be ground or resharpened on the EVOLUTION model:
The machine EVOLUTION is used in following industries: