Automatic feeding mechanism for rough machining of vehicle rear axle housing

The invention provides an automatic feeding mechanism for rough machining of a vehicle rear axle housing, and mainly relates to the field of automatic feeding. An automatic feeding mechanism for rough machining of a vehicle rear axle housing comprises a positioning platform, a conveying frame, a hoisting clamp, a positioning clamp and a controller, a jacking mechanism is arranged in the middle of the positioning platform, a guide rail is vertically arranged on one side of the conveying frame, a bearing frame is slidably arranged on the guide rail, and a plurality of supporting frames are linearly hinged to the bearing frame in a vertical state; the hoisting clamp comprises a hoisting frame, a hoisting rail and a hoisting driving device are arranged on the hoisting frame, a telescopic arm is arranged at the bottom of the sliding seat, a C-shaped arm is arranged at the bottom of the telescopic arm, pneumatic clamps are arranged at the two ends of the C-shaped arm, a stretching arm is arranged in the middle of t