| 摘要 |
<p>PURPOSE: A cam apparatus is provided to prevent the anxiety of accidents such as damage of a pierce punch by mounting a button die. CONSTITUTION: In cam device, the connection of slide faces(2,4) is released and a cam slide(5) is returned to the initial position by a restoration device(7) if an upper base(93) is raised by a hydraulic ram(95). However, the slide face(4) is connected to the other slide face(2) and the cam slide(5) is slid forward the slide face(2) as well as a pierce punch(21) is inserted into a hole(112) of a button die(111) installed on a lower base(15) to punch a specific hole if the upper base is fallen by the hydraulic ram. Also, the cam slide is returned to the initial position by the restoration device(7) if the upper base is raised by the hydraulic ram again after punching the hole.</p> |
