INDUSTIEROBOTER

摘要

A joint driving structure for an industrial robot wherein a box-like end portion (11) of a first arm (1) and a box-like end portion (21) of a second arm (2) are connected to each other in such a manner as to rotate via a bearing (23), wherein an output portion of a reduction gear (5) is connected to a rotational shaft of a driving motor (4) for rotatingly driving the second arm (2), and wherein the driving motor (4) is incorporated in the end portion (21) of the second arm (2), said joint driving structure being characterized in that an opposite-to-load side bracket (41) fixed to a fixing portion (40) of the driving motor (4) is fixed to the end portion (21) of the second arm (2), that a fixing portion (51) of the reduction gear (5) is fixed to the fixing portion (40) of the driving motor (4), and that a reduction mechanism portion (53) which is an output portion of the reduction gear (5) is fixed to the end portion (21) of the first arm (1). Thus, a joint driving structure for an industrial robot can be provided which realizes high frequency arm operations.