Diamond cutter block welding machine

The utility model discloses a diamond cutter block welding machine which comprises a machine box, an installation space is formed in the front wall of the machine box, a high-frequency welding machine is installed in the installation space, a first rectangular plate is transversely installed on the outer wall of the machine box, and a second rectangular plate is transversely installed on the side, away from the first rectangular plate, of the outer wall of the machine box. A lifting assembly is arranged between the first rectangular plate and the second rectangular plate, third rectangular plates are symmetrically installed on the side, away from the first rectangular plate, of the outer wall of the machine box, and the diamond cutter block welding machine is provided with a motor, a lead screw, a threaded block and a protection plate. The motor is started to drive the lead screw to rotate, the threaded block in threaded connection with the outer side of the lead screw is driven to move up and down in the rot