| 摘要 |
<P>PROBLEM TO BE SOLVED: To drastically miniaturize a hydraulic pressure generator for rivetting machine. <P>SOLUTION: This unit is composed of a hydraulic pressure unit B constituted of a tank 21, a pump 22 arranged so as to pressure-feed the oil held in the tank and a servo-motor 24 having an encoder 23 arranged so as to reversibly drive the pump, and the rivetting machine A constituted by arranging a forming tool 15 for holding a forming shaft 14 at the lower end part of a spindle 13 rotated with a motor 11 and ascended/descended with the action of a cylinder 12. Further, the unit has the constitution which connects both spouting holes 25, 26 of the above pump and both ports 27, 28 of the above cylinder by changing over according to the reversible-driving of the above servo-motor. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
