Machining center with rotary - and pivotable work table with a clamping device for the pivot axis

摘要

The present invention relates to a machining center for drilling, milling or turning or grinding with a can be pivoted about a horizontal axis between two bearing walls (9, 26) is supported on the side of the turning bridge (22), having at least one toothed drive ring (8), which on a disk-like connecting piece (12) of the turning bridge (22) is arranged with at least one drive system (7, 17, 18, 19, 27), which on the outside on the bearing wall (9, 26) is attached and with the toothed drive ring (8) of the turning bridge (22) in an operative connection. In order to the known machining center, while maintaining its advantages to further improve in such a way that the operation of clamping of the turning bridge can be realized without drive control and that the operation of clamping in a manner largely free of play and that it is also greatest machining moments can absorb reliably and precisely, according to the invention, the operation of clamping of the turning bridge (22) with a frictional clamping system (1) takes place, the latter in a circle about the bearing pin (13) around the turning bridge (22) is arranged in a rotationally fixed manner and with the disk-like connecting piece (12) in a working connection, and in that the clamping force of the frictional clamping system (1) by an energy accumulator (2) is generated.