Patent ID: 8726770

Claim:
A machine tool comprising an automatic lathe including a hollow spindle rotatable on a spindle axis and having a chuck at a front end thereof, a bar feeder for supplying a rod member to the spindle through a rear end of the spindle and alternatively to supply a raw blank, formed in advance into a predetermined shape, to the spindle through said rear end of the spindle, and work supplying apparatus positioned between said automatic lathe and said bar feeder, the work supplying apparatus comprising: a work pushing means for pushing the raw blank into the spindle; a work supplying means for individually supplying raw blanks to the work pushing means; and a guide means for guiding the work pushing mean, the work supplying means and the guide means being integrally connected to each other and alternately movable to a position on the spindle axis between the spindle and the bar feeder; the work pushing means comprising a feed rod of the bar feeder, the feed rod being movable along the spindle axis and being capable of pushing a rod member to the spindle and alternatively holding a raw blank; and the work supplying means comprising a work receiver for supporting a raw blank and a work moving means for moving the raw blank supported by the work receiver into engagement with the feed rod, whereby: when a raw blank is to be processed by the automatic lathe, the work supplying means moves the raw blank from the work receiver so as to be held by the feed rod while the work receiver is positioned on said spindle axis, and said raw blank is then moved into the spindle through the guide member by the feed rod while the guide member is positioned on said spindle axis between the spindle and the bar feeder, and when a rod member is to be processed by the automatic lathe, the rod member is movable into the spindle through the guide member by the feed rod while the guide member is positioned on said spindle axis between the spindle and the bar feeder.