| 摘要 |
PROBLEM TO BE SOLVED: To advance, retreat and reverse a tool change part by a single driving source by arranging a clamp means in a movable member for advancing/ reversely advancing together with a pin by the can action rotated by a rotaty means. SOLUTION: A driving gear of a hydraulic motor rotates, and a pin 10 rectilinearly advances along horizontal slots of a second cylindrical cam 8 to be put in a state of rotating while entering the vertical slot. Since a movable member 28 advancing together with the pin 10 also rotates together, a clamp means 34 arranged in the movable member 28 also rotates by 180 deg.. At this time, the pin 10 is put in a state of being positioned in a central groove 12 of a first cylindrical cam 6, but when the driving gear of the hydraulic motor continuously rotates in such a state, the pin 10 retreats by inversely reversing to the advancing action by being guided by a second inclined groove 16 of the first cylindrical cam 6. At this time, the pin 10 retreats along the horizontal slots 18, 20 of the second cylindrical cam 8. |
