Axle conveying line

An axle conveying line comprises a conveying cantilever and a mechanical arm. The axle conveying line is characterized in that the conveying cantilever is composed of a semi-gantry bearing, a guide rail beam is fixed to the conveying cantilever, a guide rail is installed on the guide rail beam, and the mechanical arm is limited to the guide rail; the mechanical arm comprises a walking mechanism, a lifting mechanism and a clamping mechanism; the lifting mechanism comprises a ram, a lifting balancing mechanism, a lifting driving mechanism, a position detection device and a rotation mechanism; the walking mechanism comprises a supporting mechanism, a slide carriage fixed to the supporting mechanism, and a walking driving mechanism; the clamping mechanism comprises a case, a clamping driving mechanism and a plurality of proximity switches. The axle conveying line fundamentally solves the problems that an existing axle mechanical arm is large in size, whole-line manufacturing is not easy and axles are easily damag