Aluminum C-arm

The utility model relates to an aluminum alloy structure for the C arm of a medical X-ray machine, and belongs to the technical field of the medical appliance. The aluminum alloy structure consists of a C arm, a support arm, a rotating shaft, bearing seat components and other parts and components, and is technically characterized in that the C arm adopts an extruded aluminum alloy profile the track width of the C arm is consistent due to modification the support arm adopts a cast aluminum structure and two groups of bearing seat components adopt a floating structure and form a rotating pair with the support arm through the rotating shaft, so that bearings on the bearing seat components can maintain the contact with the arc-shaped track of the C arm all the time, even if the curvature radius of the C arm slightly changes, thereby ensuring the normal rotation of the arc-shaped track of the C arm. The utility model has the advantages of light C arm, good plasticity, solid structure, high security, mass production, high production efficiency, low processing difficulty and low cost.