Patent ID: 7874785
Filing Date: 2011-01-25
Classification: B23Q,Y10T

Abstract:
1. A workpiece conveying apparatus of a machine tool, comprising: a workpiece gripping mechanism gripping a workpiece; a workpiece moving mechanism moving said workpiece gripping mechanism between a workpiece machining position and a workpiece carry-in-and-out position; and a frame member supporting said workpiece moving mechanism in a movable manner, wherein said frame member is composed of a pipe body extending at least to a vicinity of the workpiece carry-in-and-out position from the workpiece machining position, wherein said workpiece moving mechanism is structured to wind a belt member around a driving member and a driven member and to drive the driving member to rotate by a driving motor, and wherein the driving member, the driven member, and the driving motor are supported by said frame member, wherein the belt member is arranged in an accommodated state in said frame member; and wherein, in said frame member, a cableveyor formed by a flexible tube member and supplying working fluid or electric power to said workpiece gripping mechanism is arranged in an accommodated state therein, and wherein one end portion of the cableveyor is connected to said workpiece gripping mechanism to move together with said workpiece gripping mechanism and another end is connected to an external connection port formed in said frame member, and wherein said workpiece moving mechanism includes a support member connected to the belt member and inserted through a slit groove of said frame member, a linear guide is fixed to the support member, the linear guide is supported by a guide rail in a freely movable manner between the workpiece machining position and the workpiece carry-in-and-out position, the guide rail is fixed to an outer surface of a sidewall of said frame member via a base member, and said workpiece gripping mechanism is mounted onto the support member.