Small-cylinder servomotor dismantling tool and method for dismantling and maintaining small-cylinder servomotor

The invention discloses a small-cylinder servomotor dismantling tool and a method for dismantling and maintaining a small-cylinder servomotor. The small-cylinder servomotor dismantling tool comprises a bottom plate (1), a bearing shell (2), a top plate (3) and a positioning plate (4). The bottom of the bearing shell (2) is fixed to the top face of the bottom plate (1), and two baffles (5) are further arranged on the top face of the bottom plate (1). Positioning holes (6) are formed in the lower portions of two symmetrical side walls on the bearing shell (2), and the connecting line of circle centers of the two positioning holes (6) is perpendicular to the baffles (5). The positioning plate (4) is fixed to the upper half portion in the bearing shell (2). Small-cylinder servomotor mounting holes (7) are formed in the top plate (3) and the positioning plate (4) of the bearing shell (2) respectively, and each small-cylinder servomotor mounting hole (7) is provided with a long-strip-shaped through hole (8). The small-cylinder servomotor dismantling tool is used for dismantling and maintaining the small-cylinder servomotor and has the advantage of being simple in structure, the small-cylinder servomotor can be fast dismantled, and time and labor are saved.