Lifting type all-position multi-angle welding clamp of arc welding robot

The lifting type all-position multi-angle welding clamp comprises a base, a welding position adjusting mechanism and a lifting mechanism, the welding position adjusting mechanism and the lifting mechanism are arranged on the base, the welding position adjusting mechanism comprises two disc seats symmetrically fixed to the base, a rotating shaft is arranged between the two disc seats, a rotating plate is rotationally connected to the rotating shaft, and the lifting mechanism is arranged on the rotating plate. The rotating plate and the two disc seats are fixedly connected through bolts, a sliding rod is arranged at the end of the rotating plate, a driving block, a lower rotating block and an upper rotating block are sequentially and movably sleeved on the sliding rod from bottom to top, one end of the driving block is in transmission connection with the lifting mechanism, and the end of the upper rotating block and the end of the lower rotating block are respectively connected with a plate clamping mechanism.