The invention discloses a general type
industrial robot additional shaft guide rail structure comprising linear guide rails symmetrically mounted on the axial outer side surface of a guide rail base frame and a
pinion and rack transmission mechanism arranged on one axial side of the guide rail base frame and powered by a
servo motor with a protective cover. One side of the
pinion and rack transmission mechanism is provided with a drag chain
assembly in the axial direction. By means of the
robot additional shaft guide rail, the better mechanical protection performance on an additional shaft internal structure can be achieved,
pollution of media such as external splashing fluid and
impurity particles to internal electrical and mechanical structures can be prevented, the structure can be stably and reliably applied to the occasions with the relatively bad
working environment, the structure design is simple, production is convenient, and the appearance is beautiful. In addition, the linearguide rails, the
servo motor and a
pinion and rack are provided with complete protective covers, and the
servo motor and the drag chain
assembly are installed on the side face of the additional shaftguide rail, and equipment installation and daily maintenance and repairing are facilitated.