CARRIAGE OF METAL-CUTTING MACHINE TOOL Russian patent published in 1995 - IPC

FIELD: metal-cutting machine tools. SUBSTANCE: recesses with length no shorter than one third of corresponding guide surface and width of 50-90% width of the surface are made onto guide surfaces of the carriage. Lateral grooves are made onto slide surfaces, which grooves cross lateral recesses. Width of the grooves is equal to lengths of recesses. Depths of the grooves is 1 mm and deeper. Grooves are shifted relatively average part of guide surfaces. EFFECT: improved efficiency of operation. 3 cl, 2 dwg