T-shaped workbench and tool for machining inclined oil hole of bearing ring and using method of T-shaped workbench and tool

The invention discloses a T-shaped workbench for machining an inclined oil hole of a bearing ring, a tool and a using method, and relates to the technical field of machining. In order to solve the problems that when an existing universal rotating dividing head clamps a bearing ring, the bearing ring is prone to deformation due to the fact that the wall thickness of the bearing ring is small, and the working principle that the universal rotating dividing head is high and large and a workpiece needs to be immersed in working liquid in the machining process of an electric spark forming machine is limited. And electric spark oil needs to be repeatedly injected into and discharged out of a working cabin in the workpiece adjusting and machining process, so that the machining efficiency is extremely low. The tool is ingenious in structural design and flexible and diversified in combination mode, and the machining precision and machining quality of the bearing ring can be improved; when the tool is used for clamping