Automatic machining equipment for automobile rear axle transmission shaft

The invention relates to the field of shaft part machining, in particular to automatic machining equipment for an automobile rear axle transmission shaft, which comprises a chuck, a first clamping jaw, a second clamping jaw, a movable plate, an elastic supporting piece, a transmission mechanism, a moving device and a rotating device, the pair of chucks are arranged in parallel; the first clamping jaw and the second clamping jaw vertically slide along the radial direction of the chuck; the movable plate is arranged in the center of the chuck, can move in the axis direction of the chuck and is parallel to the chuck. Two ends of the elastic supporting piece are respectively connected with the chuck and the movable plate; the transmission mechanism synchronizes the movement of the movable plate in the direction close to the chuck into the inward contraction movement of the first clamping jaw and the second clamping jaw; an execution part of the moving device is connected with the chucks and used for controlling t