Dimension detection equipment for flange ring production

The utility model relates to the technical field, and discloses a size detection device for flange ring production, which comprises a base, the top of the base is provided with a first fixing seat, one side of the first fixing seat is provided with a first motor, an output shaft of the first motor is connected with a second gear, the top of the second gear is engaged with a first gear, and the first gear is connected with a second gear. One side of the first fixing seat is provided with a hollow column, the hollow column is rotatably connected with the first gear, one side of the first gear is provided with a limiting groove, the inner side of the limiting groove is provided with a measuring rod, the measuring rod penetrates through the hollow column and is slidably connected with the hollow column, and one end of the measuring rod is provided with an induction ball; according to the utility model, the first gear rotates to press the measuring rod to move inwards, and flanges of different sizes can be detecte