| 摘要 |
PROBLEM TO BE SOLVED: To provide a press machine with a rocking link driving mechanism in which slide motion can be set optionally, even if it is a single machine, by replacing a necessary minimum number of parts. SOLUTION: The press machine includes a slide 5 to which rotation of a main shaft 4 is transferred through the rocking link driving mechanism 7. The rocking link driving mechanism 7 includes a rocking link 10 which is slidably inserted into a through hole 12 of the main shaft 4 and has an upper arc face 15 and a lower arc face 16 having the same curvature center O, a cap 20 which slidably supports the upper arc face 15 with an arc face 27 having the same curvature radius as the upper arc face 15 and is fixed detachably to the slide 5, and a block 30 which slidably supports the lower arc face 16 with an arc face 32 having the same curvature radius R1 as the lower arc face 16 and is fixed detachably to the slide 5. By making the rocking link 10, the cap 20 and the block 30 exchangeable, the center distance L1 between the center Ox of through hole 12 and the curvature center O, and the curvature radius R1 of the lower arc face 16 can be set different. COPYRIGHT: (C)2011,JPO&INPIT
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