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公开(公告)号：US09731353B2
公开(公告)日：2017-08-15
申请号：US14917489
申请日：2014-09-08
发明人： Kiyohiko Watanabe , Yutaka Shibui
CPC分类号： B23B13/021 , B23B7/02 , B23B13/022 , B23B13/123 , B23B13/125 , B23Q7/042 , B23Q2005/005 , B23Q2707/003
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.
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公开(公告)号：US12048959B2
公开(公告)日：2024-07-30
申请号：US17192406
申请日：2021-03-04
CPC分类号： B21D43/006 , B21C51/00
摘要： To provide a rod member feeding device that reduces the load on a spindle chuck and a finger chuck when a rod member is positioned, as well as providing a machine tool provided with the rod member feeding device, and a control method for the rod member feeding device. A rod member feeding device includes: a feed rod for supplying a rod member to a spindle; a servomotor for moving the feed rod along the axial direction of the spindle; and a control device (exemplified with a motor control device and a control device) for controlling the driving of the servomotor. The control device calculates a deviation between a command position based on an advance amount of the feed rod and the actual position of the feed rod that has been actually advanced by the driving of the servomotor, and controls the driving of the servomotor based on the magnitude of the deviation.
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