The utility model discloses an automatic pendulum of axle type part is to device, include pay -off track (2), feeding mechanism (1), separation piece (3), first ejection of compact track (4), second ejection of compact track (5), be located conveying mechanism (6) below first ejection of compact track (4) and the second ejection of compact track (5) to and first stock chest (7) that are located conveying mechanism (6) discharge end and second stock chest (8), first ejection of compact track (4) are located the below both sides of separating piece (3) respectively with second ejection of compact track (5). Implement the beneficial effects of the utility model are that: automatic pendulum of axle type part is to device adopts feeding mechanism, pay -off track, separation piece, first ejection of compact track, second ejection of compact track, conveying mechanism, first stock chest and second stock chest isotructure, and its degree of automation is high, can improve the production efficiency who puts axle type part.