Triple support fork type mechanical arm structure and angle monitoring module thereof

The invention provides a triple supporting fork type mechanical arm structure. The structure comprises a supporting frame, wherein a sliding rail is arranged on the inner side of the supporting frame.The structure further comprises a lifting module which is provided with a lifting seat which can be combined with the sliding rail in an up-and-down sliding manner, a rotating module which is provided with a rotating rod which is arranged on the lifting seat in a horizontal rotating manner, and an arm module. The arm module is provided with an arm frame fixedly arranged at the top end of the rotating rod, a first tooth fork arm, a second tooth fork arm, and a third tooth fork arm, wherein the first tooth fork arm, the second tooth fork arm, and the third tooth fork arm are plate-shaped, areparallel to each other up and down, are arranged in parallel and are telescopically combined with the arm frame in a sliding manner. By means of the implementation of the invention, at least the problem of uneven film thickness