EP 1601522 A1 20051207 - ELECTRICAL PRESSING DEVICE
Title (en)
ELECTRICAL PRESSING DEVICE
Title (de)
ELEKTRISCHE PRESSVORRICHTUNG
Title (fr)
DISPOSITIF DE PRESSE ELECTRIQUE
Publication
Application
Priority
- DE 0303338 W 20031009
- DE 10251387 A 20021101
Abstract (en)
[origin: CA2504221A1] The invention relates to an electrical pressing device comprising an electri c motor (2); a step-up gear (8); a spindle drive (66) embodied as a threaded roller screw drive, the threaded spindle (14) thereof being connected to the step-up gear (8), and the threaded nut (16) thereof being guided in a cylindrical housing (22) in a rotationally fixed and axially displaceable manner and being connected to a pressing tool, for converting a rotational movement of the electric motor (2) into a linear movement of the pressing tool; a displacement sensor (30) for determining the distance covered by the pressing tool; and a sensor (10) for determining the compressive force of th e pressing tool. The threaded spindle (14) is mounted in the housing by means of a pre-stressed set of angular ball bearings (12), the first angular ball bearing (46) being used to absorb tractive forces and the second angular bal l bearing (48) being used to absorb compressive forces. The internal rings of the angular ball bearings (46, 48) are clamped next to each other, against a shaft shoulder (54) of the threaded spindle (14), by means of a shaft nut (52), and the outer rings of the angular ball bearings (46, 48) are clamped next to each other, against a projection (58) of the housing, by means of a housing nut (56), suchthat the inventive device can absorb essentially identical tractive or pressure forces, without axial play.
IPC 1-7
IPC 8 full level
B30B 1/18 (2006.01); B30B 15/00 (2006.01)
CPC (source: EP KR)
B30B 1/18 (2013.01 - EP KR); B30B 15/00 (2013.01 - KR); B30B 15/0094 (2013.01 - EP); F16C 19/163 (2013.01 - EP); F16C 19/522 (2013.01 - EP); F16C 19/543 (2013.01 - EP); F16C 35/06 (2013.01 - KR); F16C 2229/00 (2013.01 - EP); F16C 2233/00 (2013.01 - EP); F16C 2300/32 (2013.01 - EP)
Citation (search report)
See references of WO 2004039569A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 20218396 U1 20030220; AU 2003277819 A1 20040525; BR 0315838 A 20050927; CA 2504221 A1 20040513; DE 10251387 A1 20040609; DE 10251387 B4 20060427; EP 1601522 A1 20051207; JP 2006504533 A 20060209; KR 20050074510 A 20050718; WO 2004039569 A1 20040513
DOCDB simple family (application)
DE 20218396 U 20021127; AU 2003277819 A 20031009; BR 0315838 A 20031009; CA 2504221 A 20031009; DE 0303338 W 20031009; DE 10251387 A 20021101; EP 03769232 A 20031009; JP 2004547395 A 20031009; KR 20057007394 A 20050428