High Quality Balance
HQB is the abbreviation for a technology developed by the KOMET GROUP® for adjusting imbalance in flat action slides. This technology has already been used to achieve speeds which, in high-precision and high-speed applications, effectively dou-bles the possible fields of application.
With the new HQB technology, the balancing weights have been placed in front of the slide on a plane close to the overall centre of gravity for tool and slide. Thus, by using balancing weights, it is possi-ble to achieve a multi-plane (dynamic) balance, which can be realised irrespective of the stroke, thanks to its design. In addition, the centrifu-gal forces are converted into reaction forces at coupling points so that the centrifugal forces of the compensator and the slide tool system in the drive chain do not simply add up. The result is a drive torque which is largely separated from the centrifugal force formula. Another not inconsiderable factor for the smooth running of these facing heads is their reduced overall length; approximately 30 to 40 %, depending on the overall size, which in turn means reduced weight.
In practice, the HQB technology in the KomDrive flat action facing heads has already reduced the wobble torque, that is, the circumferen-tial bending moment, by up to 100 %, thus achieving absolutely per-fectly balanced systems. The greatest advantage of this is the im-proved machining parameters. Currently, conventional values are be-ing doubled. At present, the only limiting factor is machine conditions.
KomDrive facing heads with HQB technology are being successfully used in high-speed and high-precision applications such as machining journals or boring con rods. They are at least as good as facing slide tools with eccentric adjustment, and may even be superior.