| 摘要 |
PROBLEM TO BE SOLVED: To provide a slide drive device of a knuckle press which is fine in angle of inclination of a lower link to elevate/lower a slide, free from generation of any thrust force in the slide, capable of forming a product with high accuracy even in an extrusion where the forming is started from a high position on the bottom dead center, and capable of correcting the bottom dead center of the slide. SOLUTION: A connecting rod 11 to be connected to an eccentric part 12A of a crank shaft 12 is connected to an upper arm 8A of a bell crank 8 to be connected to a first supporting point pin 5 supported by a frame 1A by a first connection pin 22, a lower link 3 which connects a middle link 6 to be connected to a lower arm 8B of the bell crank 8 by a second connection pin 23 with a slide 2, is connected to a horizontal link 4 to connect a base end part by a second supporting point pin 7 to movably support a pin by a bottom dead center correction device 40 fixed to the frame 1A by a third connection pin 24 to elevate/lower the slide 2 to be guided by a slide guide 20.
|
