| 摘要 |
PURPOSE:To permit the setting with high accuracy by permitting the correct and easy minute adjustment from outside without demounting a tool from a tool holder, in a multi-spindle machine tool, and eliminating the relative difference in the installation length of the tool on each shaft. CONSTITUTION:A tool insertion hole 11 is formed, penetrating in the longitudinal direction at the center on the body 10 of a tool holder and an insertion hole 13 which penetrates crossing at right angles to the hole 11 is formed in the radial direction in the lower part of the shank part 12 fitted onto a main shaft. A standard block 20 is fitted in shiftable ways at the innermost part of the hole 11 on the body 10. As for an eccentric shaft 30 having an eccentric part 31 at the near center, the eccentric part 31 is fitted into the insertion hole 21 of the block 20, and the both side parts are inserted in turnable ways into the insertion hole 30 on the body 10. Further, an operation part 32 consisting of a wrench fitting hole which is positioned on the outer peripheral part of the body 10 is formed at one edge of the shaft 30. Therefore, the relative difference of the installation length of the tool on each shaft is eliminated, and the setting with high accuracy is permitted. |
