Vacuum tempering furnace for heat treatment of wear-resistant forged steel balls

The vacuum tempering furnace comprises a tempering furnace body, a heat insulation door plate and a sealing protection door, the heat insulation door plate is arranged in an inner cavity of the tempering furnace body, placing grooves are symmetrically welded to the side walls of the two sides of the heat insulation door plate, and the sealing protection door is fixedly welded to one end of each placing groove. Swing shafts are symmetrically installed in the two containing grooves, one ends of the swing shafts are connected with the output end of the servo motor, a discharging plate is fixedly welded to the swing shafts, and a plurality of shifting bent rods are symmetrically and evenly welded to the side walls of the two sides of the discharging plate. The steel ball heat treatment device has the advantages that the steel ball heat treatment device is provided with the discharging plate and the shifting bent rod, steel ball materials can be heated more evenly in heat treatment, it is guaranteed that the heat