Circulating cooling equipment for workpiece machining

The invention discloses circulating cooling equipment for workpiece machining. The circulating cooling equipment for workpiece machining comprises a first conveyor, a cooling pond and a second conveyor which are arranged in sequence. The cooling pond is filled with cooling water, a rotating disc is rotatably arranged in the cooling pond, a cooling box is connected to the surface of the rotating disc through a connecting piece, an opening is formed in the cooling box, and the rotating disc can drive the cooling box to rotate in the vertical plane so that the cooling water can enter the cooling box. When the opening of the cooling box faces upwards, workpieces can be conveyed by the first conveyor to slide into the cooling box; and the end, away from the first conveyor, in the cooling pond is connected with the second conveyor through a cooling conveying plate assembly so that when the opening of the cooling box is located above the cooling conveying plate assembly, the workpieces in the cooling box can slide t