Workpiece supply/conveyance device and machine tool with the workpiece supply/conveyance device

摘要

There is provided a workpiece supply/conveyance device that can remove a workpiece from a spindle and supply another workpiece to the spindle smoothly and in a short time. A workpiece holding section of one of a plurality of arms includes an unmachined workpiece holding section 29 for holding an unmachined workpiece and a machined workpiece holding section 21 for holding a machined workpiece. When the plurality of arms are rotated in one direction, each of the arms is moved to an unmachined workpiece loading position III at which the unmachined workpiece holding section receives the unmachined workpiece, a standby position IV in a standby state while holding the unmachined workpiece to be next machined in the unmachined workpiece holding section, a workpiece delivery/reception position I at which the workpiece is delivered and received among a workpiece machining apparatus, the unmachined workpiece holding section and the machined workpiece holding section, and a machined workpiece unloading position II at which the machined workpiece held in the machined workpiece holding section is unloaded.

主权项

1. A workpiece supply/conveyance device, comprising:
a workpiece machining apparatus configured to machine an unmachined workpiece and produce a machined workpiece; an unmachined workpiece loading position configured to receive the unmachined workpiece; a workpiece delivery/reception position at which the workpiece machining apparatus receives the unmachined workpiece and unloads the machined workpiece; and a plurality of arms radially extending from a rotation center, configured to integrally rotate in only one direction around the rotation center, and move the unmachined workpiece from the unmachined workpiece loading position to the workpiece delivery/reception position, wherein a tip of each of the plurality of arms comprises
an unmachined workpiece holding section configured to hold the unmachined workpiece at an upstream side of the one direction, anda machined workpiece holding section configured to hold the machined workpiece at a downstream side of the one direction, and the plurality of arms only rotates in the one direction so that one of the plurality of arms unloads the unmachined workpiece to the workpiece machining apparatus from the unmachined workpiece holding section after the one of the plurality of arms received the machined workpiece on the machined workpiece holding section from the workpiece machining apparatus at the workpiece delivery/reception position.