Device for supporting arm driving shafts of industrial robot

Details Device for supporting arm driving shafts of industrial robot Device for supporting arm driving shafts of industrial robot

B - Operations, Transporting

25

J

308/6, 294/9

B25J 17/00 (2006.01) B25J 9/10 (2006.01) B25J 17/02 (2006.01) F16C 19/36 (2006.01) F16C 19/54 (2006.01) F16C 25/06 (2006.01)

Patent

CA 2000304

In a device for supporting arm driving shafts, articulating portions of adjacently provided first and second arms constituting a parallel link type robot are rotatably supported, via separately provided bearings, from supporting posts projecting from the robot structure, and the first arm and second arm are also coupled through another bearing. All of these bearings are of a type in which an axial force applied to either one of inner and outer races of the bearing beforehand presses rolling members of the bearing toward the other of the races, while a pressing plate is provided for applying the axial force to one of the bearings. The application of the axial force shifts the supporting frame of the first arm relative to the driving shaft of the second arm, so that all of the bearings are prepressurized for eliminating unnecessary play.

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