PORTABLE MACHINE WITH CLAMPING DEVICE FOR FIXATION OF WORKING TOOL Russian patent published in 2016 - IPC B23Q3/12 B27B19/00 B24B45/00 

FIELD: machine building.

SUBSTANCE: invention relates to portable processing machines, primarily portable processing machines with spindle driven into oscillatory movement. Portable machine comprises at least one clamping device for fixation of working tool. Clamping device comprises at least one clamping assembly (12a, 12b) having at least one rod-like clamping element (14a, 14b) for clamping working tool (16a, 16b) in axial direction (18a, 18b), and at least one located on clamping element (14a, 14b) clamping head (20a, 20b), having at least two movable relative to each other sections (30a, 32a, 32b 30b). Clamping device also includes at least one unit (22a, 22b) for conversion of motion for movement depending on movement of clamping element (14a, 14b) made at least substantially in axial direction (18a, 18b), at least two moving relative to each other sections (30a, 30b, 32a, 32b) of clamping head (20a, 20b) at least in one direction, different from axial direction (18a, 18b). Unit (22a, 22b) for conversion of motion is made in form of a movable unit (92 a; 92b) for displacement of at least in one mode of operation of clamping unit (12a, 12b) at least two moving relative to each other sections (30a, 32a, 32b 30b) of clamping head (20a, 20b) relative to each other in opposite directions (34a, 34b, 36a, 36b). Sections (30a, 30b, 32a, 32b) of clamping head (20a, 20b) have clamp surface (72a, 74a) which upon pressing working tool (16a, 16b) in axial direction of clamping unit (12a, 12b) are spaced apart to fit at least to surface of working tool (16a, 16b), and effect on working tool (16a, 16b) in axial direction (18a, 18b) with clamping force.

EFFECT: technical result consists in increasing service life of process machine.

7 cl, 7 dwg