Patent ID: 6257108
Filing Date: 2001-07-10
Classification: B23Q,Y10T

Abstract:
A work transfer method for transferring a work to a machine tool with a movable main spindle in which a headstock for rotatably supporting the main spindle moves at least in an axial direction of the spindle and in a direction perpendicular to an axis of the spindle, the work being transferred to said machine tool and being received or sent between a work transfer apparatus and a chuck provided at a lower end ofthe spindle, said method comprising the following steps of:disposing a machined work transfer portion for laying and transferring a machined work sent from the chuck on a machined work placement portion in an upper stage or a lower stage of a non-machined work transfer portion for laying and transferring a non-machined work for being received by the chuck on a non-machined work placement portion;moving said non-machined work placement portion between a non-machined work receiving position for the chuck to receive the non-machined work for machining the work in said machine tool and a work loading position for loading the non-machined work; andmoving said machined work placement portion between a machined work sending position for the chuck to lay and send the machined work which has been machined by said machine tool, said machined work sending position being located in an upper or lower position of said non-machined work receiving position, and a work unloading position for unloading the machined work,whereby a reception or release of the work is performed between the chuck and said work transfer apparatus.