Device for machining locking arm rod elbow

The invention relates to a device for machining a locking arm rod elbow. A table tool plate is a plate body, a connecting plate is arranged at one edge of the plate body and is perpendicular to the plane of the plate body, a notch is formed in one corner of the plate body, and the plane of the plate body is provided with three holes, wherein one hole is connected with a first locating pin, the second hole is connected with a second locating pin, and the third hole is connected with a tool setting pin; when the first locating pin serves as the rotating center of the locking arm rod elbow, the device is used for machining a first arc section of locking arm rod elbow; when the second locating pin serves as the rotating center of the locking arm rod elbow, the device is used for machining a second arc section of the locking arm rod elbow; when the tool setting pin serves as the rotating center of a machine tool cutter, the device is used for machining a third arc section of the locking arm rod elbow; and a first