CLAMPING DEVICE AND MACHINE EQUIPPED WITH SUCH DEVICE Russian patent published in 2021 - IPC B23B31/24 

FIELD: mechanical processing.

SUBSTANCE: group of inventions relates to the mechanical processing of workpieces, namely, to their clamping device and a processing machine. The clamping device contains case (4), in radial grooves (11) of which there are cams (6) with the possibility of their movement from the rotation of spiral disk (5) connected directly or through intermediate flange (12) to spindle (3) kinematically connected to a drive means, for example, an electric motor, in particular, a servo motor. Case (4) is mounted on spindle (3) by means of controlled coupling (13) with the possibility of selectively either turning relatively to the spindle, or mutual fixing with the possibility of rotation in unison. Coupling (13) contains first and second transmission elements (14, 15) connected respectively to case (4) and headstock (16) of the machine, and coaxially located on the axis of rotation of spindle (3), connecting element (17) mounted movably in guides (18) of the case, and means (19) of controlling the movement of the connecting element in the case. Toothed or frictional configurations of elements (15, 17) of coupling (13) for pneumatic, hydraulic or electrical closure are proposed. Options of the machine may contain one or two clamping devices on spindle (3) of headstock (16).

EFFECT: increase in vibration resistance, reliability, maintainability and safety of the clamping device is achieved, as well as universalization of fastening for standard types on the machine spindle.

19 cl, 15 dwg