The invention relates to the technical field of membrane machines, in particular to an automatic membrane
spot welding machine. Circulation tools comprise containing grooves formed in a rotating plate, and
copper cores are arranged in the containing grooves; a membrane placement device comprises a base with an
insertion hole, a T-shaped membrane tool is arranged in the
insertion hole, and a motor is arranged in the
insertion hole in the bottom end of the membrane tool; the drive end of the motor makes contact with a membrane at the bottom end of the membrane tool; a
spot welding device comprises a first support arranged on a work table, a sliding rail vertically arranged at the top end of the first support, a sliding block arranged on the sliding rail and a top
electrode installed on the sliding block; a first air cylinder pushing the sliding block to be lifted is arranged at the top end of the first support; a supporting column is arranged at the part, below the top
electrode, of the work table and is provided with a bottom
electrode capable of being lifted. The automatic membrane
spot welding machine can accurately guarantee the quality of vibration membranes, keep the uniformity and the reliability of the vibration membranes, avoid the phenomenon that
mass slices and the membranes are not concentric in production and improve the stability of products.