Planetary speed reducer positioning detection device

The utility model discloses a planetary speed reducer positioning detection device which comprises a fixed shaft platform, two supporting legs are fixedly connected to the two sides of the bottom of the fixed shaft platform, a moving platform is slidably connected to the top of the fixed shaft platform, a vertical moving plate is slidably connected to an inner cavity of the moving platform, a sliding plate is slidably connected to an inner cavity of the vertical moving plate, and the sliding plate is slidably connected to an outer cavity of the fixed shaft platform. A servo motor is installed at the top of the sliding plate, a first threaded rod is arranged on the front side of the vertical moving plate in a penetrating mode, the rear side of the first threaded rod penetrates to the rear side of the sliding plate and is rotationally connected with the vertical moving plate, and the sliding plate is in threaded connection with the first threaded rod. The front-back position of the sliding plate can be adjusted