| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized electric hand.SOLUTION: An electric hand 10 opens/closes two fingers 21 and 22 by an electric motor 27 to grip a workpiece. A nut 37 screw-coupled with a screw shaft 31 rotationally driven by the electric motor 27 is stored in a housing 11 so as to reciprocate in an axial direction, and a drive shaft 43 is stored in a guide hole 42 of the nut 37 so as to reciprocate in the axial direction. The finger 21 is engaged with the drive shaft 43 by a rocking arm 51, and the finger 22 is engaged ith the drive shaft 43 by a rocking arm 52. A compression coil spring 61 drives the drive shaft 43 with the nut 37 until the fingers 21 and 22 abut on the workpiece, and is elastically deformed to apply spring force to the fingers 21 and 22 when the fingers 21 and 22 grip the workpiece.SELECTED DRAWING: Figure 1 |
