The utility model belongs to the technical field of valve
machining, and relates to a multi-
station valve drilling and tapping compound
machine which comprises a base, a
machining platform is fixedly connected to the top of the base, a trapezoidal plate is fixedly connected to one side of the middle of the
machining platform, a plurality of sets of containing plates are fixedly connected to the other side of the machining platform, and an overturning
assembly is arranged on one side of the middle of the machining platform. A supporting
assembly is arranged in the middle of the machining platform. Through the arrangement of the overturning
assembly, the phenomenon that the
drill bit is prone to overheating under long-term continuous work, the
hardness and the abrasion resistance of the
drill bit are reduced easily due to overheating, the drilling precision and the surface quality are further affected, abrasion of the
drill bit can be possibly accelerated, and the service life of the
drill bit is shortened can be reduced; in addition, overheat of the
drill bit may cause
thermal deformation of materials and increase machining errors, and even under some extreme conditions, the
drill bit may be fractured to affect continuous and stable operation of a
production line.