Clamping and fixing mechanism for automobile brake drum machining

The utility model relates to the technical field of automobile production, in particular to a clamping and fixing mechanism for machining an automobile brake drum, which comprises a worktable, a mounting block, a fixing device and a moving component, the mounting block is fixedly connected with the worktable and positioned above the worktable, the fixing device is mounted on the mounting block and used for fixing the brake drum, and the moving component is fixed on the mounting block. The moving assembly comprises a moving plate, a moving component, a mounting plate, a hydraulic rod and a storage plate, the moving plate is fixedly connected with the workbench and located on the side, close to the mounting block, of the workbench, the mounting plate and the moving plate are connected through the moving component, the moving component drives the mounting plate to move, and the hydraulic rod is fixedly connected with the mounting plate and located on the side, away from the moving plate, of the mounting plate. A