Five-axis machining clamp for automobile rear steering knuckle

The utility model relates to an automobile rear knuckle five-axis processing fixture, which comprises a bottom plate, a middle hollow and a first clamping fixture, the middle hollow is arranged in the middle of the bottom plate, the first clamping fixture is arranged on the right upper portion of the front end face of the bottom plate, a second clamping fixture is arranged on the left upper portion of the front end face of the bottom plate, and a third clamping fixture is arranged on the left portion of the front end face of the bottom plate. The first clamping fixture, the second clamping fixture, the third clamping fixture and the fourth clamping fixture are of the same structure and comprise clamping rods for clamping products and clamping oil cylinders for driving the clamping rods to work. And a first edge supporting block, a second edge supporting block and a third edge supporting block which surround the hollow middle part are arranged on the front side of the bottom plate. The fixture has the characte