Photovoltaic module frame mounting mechanism with automatic positioning function

The invention discloses a photovoltaic module frame mounting mechanism with an automatic positioning function, and the mechanism comprises a workbench which is provided with a supporting part for supporting a photovoltaic module; the positioning mechanism comprises two L-shaped positioning pieces which are oppositely arranged, the two positioning pieces are respectively used for being matched with two opposite corners of the photovoltaic module so as to horizontally position the photovoltaic module, the two positioning pieces are both connected with first driving pieces, and the two first driving pieces can be matched to drive the two positioning pieces to move on the same straight line in a face-to-face or back-to-back mode; the pressing piece is movably arranged on the workbench in a lifting manner and is used for pressing the photovoltaic module on the supporting piece; and the four pushing mechanisms are arranged on the workbench, located on the peripheral side of the supporting piece and used for conveyi