Cilindrinio šlifavimo staklės - Universalios

KELLENBERGER Kel-Varia UR225-1500 1-2-6-7

Grinding diameter: 450 mm
Grinding length: 1500 mm
Centre height: 225 mm
Control system: FAGOR

EQUIPMENT
-T1: 500 mm grinding wheel diameter
-T2: 400 mm grinding wheel diameter
-T6: internal grinding attachment
-T7: internal grinding attachment
-Spindle motor, water-cooled, 9.8 kW
-Marposs tool measurement system
-Active longitudinal positioning
-Kel-Set
-GAP control on T1 and T2 by ELASO (contactless), integrated into the control interface
-GAP control on T3/T4 via fluid sensor
-Semi-automatic balancing by ELASO, integrated into the control interface for T1/T2
-Tailstock, hydraulic with fine adjustment +/-150 µm
-Dressing device on the lower table, workpiece spindle side
-Dressing device on the lower table, tailstock side
-Dressing device on the upper table
-New, service- and operator-friendly enclosure

SPECIAL EQUIPMENT:
Workpiece headstock with direct drive
*highly recommended for non-circular grinding
*max. workpiece weight, between centers: 150 kg
*max. workpiece weight, overhung: 75 kg
*water-cooled
*Morse taper 5 combined with short taper mount to DIN 55026
*spindle orientation stop
*fixed lower section
B-axis with direct drive, center height 225 mm
*extremely torsion-resistant
*high positional accuracy
*resolution °
*water-cooled
MECHANICAL OVERHAUL:

- Complete machine overhauled according to Kellenberger measurement protocol
- New paintwork

New hydraulic unit:
- Improved temperature control (oil cooler)
- Energy-saving: only one pump, and not running continuously!
- Pressure monitoring
- Monitoring of water content in the hydrostatic oil (early detection of bellows damage)
Hydrostatic screw drive in X axis
- Wear-free, since no contact during operation
- No loss of accuracy, even during prolonged operation under full load at maximum speed
- Friction-free at low speeds
- No reversal jump of friction force when changing direction
- Transmits smallest rotational movements
- No stick-slip effect even at low speeds
- No fluctuation in friction torque due to recirculating balls
- Higher axial stiffness than ball screw drives
- Significantly better damping, leading to improved workpiece surface and longer tool life
- No vibrations due to recirculating balls
- Also suitable for high speeds and accelerations
- Cost-effective alternative to linear motors, offering higher accuracy and much less heating
- Much lower power loss and thus no swarf issues on permanent magnets
- Much lower cooling requirements compared to linear motors

ELECTRICAL OVERHAUL:

-New, modern CNC cylindrical grinding machine control with BEMA cylindrical grinding interface
-Newly constructed control cabinet
-New drive technology
-Replacement of all electrical wiring (Berus pressure switches etc.)
-New absolute glass scales in X and Z
-New absolute encoder (for B-Axis)

CONTROL SYSTEM:

The grinding software consists of a base license and various options, depending on the machine configuration.

Software base functions:
- External and internal oscillation grinding
- External and internal plunge grinding
- External and internal plane oscillation grinding
- External and internal plane plunge grinding
- External and internal cone oscillation grinding
- External and internal radius grinding (radius dressed on wheel)
- Semi-automatic oscillation grinding
- Workpiece...
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