Monday, February 25, 2008

Device measures and presets tooling optically

A highly accurate optical tool presetting and measuring device can clamp, measure and adjust tooling outside the machine while the CNC machine continues to manufacture parts

Schunk has introduced its highly accurate TRISet optical tool presetting and measuring device. The TRISet is suitable for all conventional tool clamping systems and as an additional bonus, the Schunk Tribos clamping device can be integrated as an option to enable Tribos tools to be length set, clamped and measured in seconds.

The TRISet allows users to significantly increase machine running times and reduce machine down time caused by tool setting.

Tools can be clamped, measured and adjusted outside the machine while the CNC machine continues to manufacture parts, delivering significant time savings.

* No axial displacement - the Tribos polygonal clamping technology is especially suitable for tool presetting.

In contrast to other toolholding systems, no axial displacement arises with the Tribos system as clamping occurs in the radial direction only.

The TRISet tool presetting system increases productivity in metal-cutting operations by 15% because the use of preset tools increases machine running times.

It also prevents reject components as even the first workpiece is machined to the exact size required with no deviation caused by the tool.

Moreover, said Schunk to manufacturingtalk.com, the TRISet offers the option of adjusting tools with exceptional precision using measurement programs for certain measurement tasks and checking the quality of the cutting edge.

Tool presetting enables micron precise tool measurement and this allows inspection of the cutting edge wear and edge quality.

The system also caters for measurement programs that monitor radial and axial run-out that determine the 'highest cutting edge' and 'largest diameter' dimensions.

* menu simplifies operation - the menu format simplifies operation considerably.

Length and diameter as well as cutting edge angle and cutting edge radius are detected within seconds thanks to ImageController1 image processing.

The setting devices are available in two measuring ranges with a measuring range of Z = 400mm and D = 400mm or a measuring range of Z = 600mm and D = 400mm.

To ensure quality over the long term, the Schunk Tribos presetting device depends on high-quality components, such as the Heidenhain measuring systems, THK guidance, Bosch pneumatics and computers from Sirius.

It is also important to highlight the tool mounting spindle with 4 x 90 deg indexing and 360 deg brake as well as the integrated calibration edge.

* Tribos polygonal clamping technology - the Tribos polygonal clamping technology was patented and developed by Schunk in 1997 and is based on a polygonal shape of the clamping bore.

In unclamped condition, it has a polygonal cross section.

If an exactly defined external force is applied to the clamping side of the toolholder, the clamping bore will deform.

The toolholder shank can now be introduced into a larger, circular bore.

After this force is removed, the clamping bore will return to its original shape and will clamp the tool shank.

Within seconds, the tool is changed using a hydraulic clamping device.



http://www.manufacturingtalk.com/news/shu/shu142.html

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