Spline gear rolling locating tool

The invention provides a spline gear rolling locating tool and belongs to the technical field of machines. The problem that the qualification rate of existing spline gear rolling is low is solved through the spline gear rolling locating tool. The spline gear rolling locating tool comprises a connection rod and a rotation shaft. A cavity is formed in the front end of the connection rod. The rear end of the connection rod is fixedly connected with a workbench. An adjusting disc and a dial disc are fixedly connected to the outer side wall of the front end of the connection rod. The rear end of the rotation shaft is located in the cavity. The rotation shaft is fixed to the connection rod in the axial direction. A locating disc is fixedly connected to the rotation shaft. A spline mandrel is detachably and fixedly connected with the front end of the rotation shaft. The adjusting disc is located between the dial disc and the locating disc. A groove is formed in the side, close to the adjusting disc, of the locating disc. A locating bolt penetrates through the adjusting disc. A steel ball is arranged at the end, close to the locating disc, of the locating bolt which is sleeved with a spring. On end of the spring is abutted against the locating bolt, and the other end of the spring is abutted against the adjusting disc. The steel ball can be embedded in the groove under the elasticity effect of the spring. The spline gear rolling locating tool has the advantage of improving the product percent of pass.