Vehicle rear axle housing machining surface detection device

The invention discloses a vehicle rear axle housing processing surface detection device, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a vertical plate, the upper surface of the vertical plate is fixedly connected with a flatness detector, the vertical plate is provided with a limiting hole, and the interior of the limiting hole is slidably connected with a limiting block. The outer surface of the limiting block is fixedly connected with a workbench, the workbench is provided with a clamping device, the outer surface of the clamping device is fixedly connected with a movable block, the upper surface of the movable block is fixedly connected with a fixed clamp, and through the movable clamp and the fixed clamp, the vehicle rear axle housing can be conveniently fixed and measured; as the vehicle rear axle housing has a plurality of processing surfaces, multiple times of measurement is needed, the top block can conveniently drive the rotating shaft to jack the ve