Positioning and clamping device of speed reducer shell

The utility model discloses a positioning and clamping device of a speed reducer shell, which is characterized in that the speed reducer shell is provided with a positioning part (011), the positioning part (011) is provided with a mounting hole, the positioning and clamping device comprises a supporting component and a pressing component (2), the supporting component and the pressing component (2) are used for supporting and clamping the positioning part (011) of the speed reducer shell (01), and the top of the supporting component is provided with at least one positioning pin. Matching withmounting hole. According to the positioning and clamping device of the speed reducer shell, the relative position between the speed reducer shell (01) and the positioning and clamping device is determined through the positioning pin (11) arranged at the top of the supporting part, the situation that the speed reducer shell (01) shakes and rotates due to the action of cutting force in the machiningprocess is reduced, and t