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X-AX LASERBAR

Geometric fingerprint or volumetric compensation - Machine calibration with minimum effort of time and measuring equipment

The X-AX LASERBAR is the solution to calibrate 3- 5-axis machine tools completely with minimal measuring equipment expenditure.

Calibration technology rethought: new techniques and patented developments combined with proven methods have created the X-AX LASERBAR. A measuring system for determining volumetric machine deviations has never been so compact, light and inexpensive.

Determination of deviation values for the linear and rotation axes

As with the LASERTRACER, purely interferometric measurements are used to determine the geometric condition of the machine. With the X-AX LASERBAR, the laser is guided from the machine via the multi-stage telescopic tube. The two ends are supported by precision spheres in sphere nests. This makes it possible to calibrate smaller and medium-sized machine tools with 3, 4, 5 or more axes with manageable hardware.

With conventional measuring equipment, the total geometric deviations of a 5-axis machine can only be determined with extremely high effort – the entire process can take several days. Etalon’s X-AX LASERBAR, on the other hand, requires no more than two to four hours to fully capture all geometrical deviations of a 5-axis machine.

Software package TRAC-CAL

Combined with the sophisticated TRAC-CAL software, the measuring system analyzes the entire working area of the machine tool. It provides an accuracy of 1 µm and determines position deviations, straightness deviations, rotational deviations (pitch, yaw, roll) and the perpendicularity of the axes to each other. The angular positioning deviations, the axial and radial movements and the wobbling of rotary axes are also fully recorded. At the push of a button, a corresponding measurement report is generated for documentation purposes.

To increase the accuracy of the machine, correction data can then be automatically generated for the control system. The result: a maximum reduction of all geometrical errors, a process stable production from the first component and thus hardly any rejects or reworking effort.

 

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EXPERT COMMENT
"Once the measuring process is set up, a complete machine tool can be measured within one morning. With respect to performance, measuring speed, and accuracy, there is no alternative in the market to this measuring device."
Hans-Jürgen Bozner, Manager of the Technology Center of Alzmetall Werkzeugmaschinenfabrik und Gießerei Friedrich GmbH & Co. KG
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X-AX LASERBAR
ADVANTAGES
  • Monitoring of machines, flexibly and independently
  • Determination of the quality-relevant axis geometry for linear axes: straightness, pitch, yaw, roll, positioning (6 DOF) + squareness, up to axis lengths of 1.5 m
  • Determination of the quality-relevant axis geometry for rotary axes: axial and radial runout, wobble and angular positioning (6 DOF) + orientation
  • Simple measurement and documentation
  • Savings in time and effort for measuring equipment
  • Output of compensation data per mouse click
  • Optional volumetric compensation for maximum accuracy gain
  • Standard-compliant machine verification
  • Can be used anywhere
EXAMPLES OF APPLICATION
  • Calibration of medium and small machine tools
  • Verification of machine tools according to ISO 230-2, -6 or VDI 3441, optional ISO 230-4 (ballbar test)
TECHNICAL DATA
Uncertainty U(95%) =1.0 µm
Measurement range 270 mm – 1050 mm / 210 - 745 mm
Horizontal angular range no fix limit
Vertical angular range -45° to +75°
Weight 0.4 kg (without sensor box)
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