Robust LaserControl Monitors Tools--In the Machine
Blum LMT, Inc., a global leader in
laser measurement technology solutions, introduces its LaserControl system for
tool setting and breakage detection, as well as measuring the length and
diameter of rotating tools within the harsh environment of a machining center.
The system, which has a proven track record of more than 16,000 installations
worldwide, is particularly effective in high-speed, high-velocity and
high-accuracy machining applications where tool integrity is essential.
According to Paul Meinhardt, general manager, laser measuring systems are highly effective at measuring tools, detecting broken tools and identifying whether parts are in a desired location. The traditional method for monitoring broken tools is to check tool geometry. Tool setting probes currently in use work on this principle and, generally, on a mechanical basis using offline tool presetters--the assumption being that between presetting and setup little, if any, variation will take place. However, this is only an assumption and often the opposite occurs.
The LaserControl can monitor within the entire machining range of a machining center, utilizing a visible red light laser with a wave length of 670 nanometers and output capacity of <1 mW, which falls within the laser Class 2 VDE 0837 and, thus, requires no specific protective measures. Optical components are protected from coolant and chips by a pneumatically operated shutter and air barrier. Repeatability is better than 1 micron. Installed in a CNC machining center, precision of a few microns in measuring and tool setting is common.
According to Meinhardt, tool length and diameter measurement can be done rapidly with almost no effect on processing time. The correct position of all cutters in multi-cutter tools can be checked in radial and axial directions at the rotating tool. Possible setting and clamping errors are identified in a few seconds. The high measuring frequency of the system permits measuring of multiple insert tools at full nominal RPM.
Software measuring routines have been developed for Siemens, Fanuc, Heidenhain, Num, Fadal, Boston Digital, Okuma, Haas and Vickers CNC controls. Measuring cycle routines include the length of concentric tools, such as twist drills, starting from 0.3mm diameter, tap drills, engraving needles and reamers; acentric tools, such as endmills, facemills, milling cutters of unknown length and diameter, and single cutting edge monitoring at the rounded edges of ballnose cutters with cylindrical or conical shafts.
For more information contact:
Blum LMT, Inc.
250 Grandview Drive #10
Ft. Mitchell, KY 41017
859-344-6789
Fax: 859-344-6799
E-mail: solutions@blum1mt.com