Vertical double-sided milling machine

The invention belongs to the field of milling machine devices, and particularly relates to a vertical double-sided milling machine which comprises a machining machine table. Supporting columns are fixedly connected to the bottom of the machining machine table, and an adjusting assembly is arranged at the top end of the machining machine table. A first motor is started to drive a rotating rod and two sets of first bevel gears to rotate, two sets of meshed second bevel gears can be driven to rotate, meanwhile, a first screw rod is made to rotate, and due to the fact that the first screw rod is a bidirectional screw rod, when one set of first screw rod rotates, two sets of symmetrical first nuts and a grinding machine arranged on the outer wall of the first screw rod can be driven to move towards the center; the four groups of grinding machines are started at the same time until the distance between the two groups of grinding machines is consistent with the thickness of the weldment, then ...