BAR MATERIAL SUPPLYING DEVICE AND NUMERICAL CONTROL MACHINE TOOL HAVING THE SAME

摘要

A bar material supplying device includes a feed rod having a leading end provided with a finger chuck, a feed rod servomotor and an air cylinder device that move the feed rod in a longitudinal direction to insert and pull the bar material into and from the finger chuck, and an NC device that controls driving of the feed rod servomotor and driving of the air cylinder device. The NC device controls the driving of the feed rod servomotor and the driving of the air cylinder device to move the feed rod in an operation of inserting and pulling the bar material into and from the finger chuck, and operates as an error allowable device that allows an error of an operation amount of the feed rod servomotor motor in the operation of inserting and pulling the bar material into and from the finger chuck.

主权项

1. A bar material supplying device comprising:
a feed rod having a leading end provided with a finger chuck that insertably and detachably holds a bar material; a motor and a cylinder device that move the feed rod in a longitudinal direction to insert and pull the bar material into and from the finger chuck; and a control device that controls driving of the motor and driving of the cylinder device, wherein the control device controls the driving of the motor and the driving of the cylinder device to move the feed rod in an operation of inserting and pulling the bar material into and from the finger chuck, and operates as an error allowable device that allows an error of an operation amount of the motor in the operation of inserting and pulling the bar material into and from the finger chuck.