Page 14 - May

METALWORKING EQUIPMENT AND TOOLS
QUALITATIVE APPROACH TO ASSESSMENT

OF THE STATE OF SPINDLE BEARINGS IN

PRODUCTION CONDITIONS

Problems associated with the loss of the processing modes, and productivity drops.
vibration resistance arise at any machine- Often, the loss of vibration resistance occurs
building enterprise that operates metal-cutting due to wear of the spindle bearings, due to a
machines. There comes a moment when the decrease in the preload in the supports, due
machine stops cutting the work piece normally, to a decrease in the rigidity of the supporting
intense vibrations appear even at a small system. Systems of operational diagnostics and
depth of cut. On CNC machines, you have to monitoring of the state of units, mechanisms
enter a correction into the program, change and machine parts are required [1 - 6].

Fig. 1. The investigated machine TNL-120AL2.

14 Stanochniy park