Clamping device and method for aluminum alloy cylinder body machining

The invention discloses a clamping device for aluminum alloy cylinder body machining, and relates to the technical field of clamps. The clamp comprises a bottom plate and a clamp plate, wherein rotating shafts are connected to the two sides of the bottom plate; the two rotating shafts are rotationally connected with shaft seats, and one rotating shaft is in transmission connection with a first servo motor; the upper surface of the bottom plate is connected with a plurality of arc-shaped guide rails and rotationally connected with a transmission shaft; the transmission shaft is connected with a worm and is in transmission connection with a second servo motor; the lower surface of the clamp plate is fixedly connected with an arc-shaped sliding strip matched with the arc-shaped guide rail and a fan-shaped worm wheel meshed with the worm. Wherein the length direction of the arc-shaped sliding strip is parallel to the axial direction of the rotating shaft, and the arc-shaped sliding strip and the fan-shaped worm g