▎ 摘　　要

NOVELTY - A gantry machining centre spindle head automatic conversion mechanism, comprising a traction frame, a shaft rod, a shaft frame and a shaft head main body, the shaft rod passes through the traction frame and is slidingly set, the inserting end of the shaft rod is connected with the shaft head main body through the shaft frame transmission, the outer wall of the traction frame is symmetrically provided with a radiating groove, the radiating groove is compounded with a radiating component. the radiating groove of the traction frame is compounded with a radiating component, the radiating component comprises a graphene patch, a copper-aluminium alloy plate and an elliptical copper-aluminium alloy fin, the shaft rod relative to the traction frame longitudinal movement process generated in the heat generated by the graphene patch is transmitted to the copper-aluminium alloy plate surface, copper-aluminium alloy plate and elliptical copper-aluminium alloy fin for auxiliary radiating, at the same time, by external power supply to the radiating fan, the cold air blown out by the radiating fan is discharged through the blowing cover, accelerating the circulation of the air on the surface of the copper-aluminium alloy gasket and the elliptical copper-aluminium alloy fin, it is good for radiating and reducing the accumulation of heat.