Pressing device
OwnerCarsten Winter, Dirk Werstrupinventors
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Abstract
The invention relates to a pressing device, comprising an electric motor (1), a reduction gear (2) and a spindle drive (3). According to the invention, the reduction gear is in the form of a planet gear and the spindle drive (3) is a planet roller-screw spindle drive. The threaded nut (32) acts upon a pressing tool (4) and is guided in a linear direction in a rotatably fixed manner.
Claims9
Pressing device comprising an electric motor (1), reduction gearing (2) and a spindle drive (3) for conversion of a rotary movement into a linear movement of a pressing tool (4), and having a path sensor for determining the path traveled, as well as a sensor for determining the pressing force of the pressing tool (4), characterized by the fact that provided as reduction gearing (2) is planetary gearing, and as a spindle drive (3) a planet roller-screw spindle drive;
- that the screw spindle (31) is coupled directly with the output shaft (22) of the planetary gearing (2), and that the threaded nut (32) acts upon the pressing tool (4), and is guided in rotationally-fixed fashion as an inner sleeve (33) in an external, outer sleeve (34) with opposing involute gearing (35), fixed to the housing, for supporting the reaction moment in the linear direction.
Dependencies are inferred from the claim text.