| 摘要 |
1,128,946. Cutting tools. FAGERSTA BRUKS A.B. 18 Feb., 1966 [19 Feb., 1965], No. 7262/66. Heading B3B. The cutting tip 3 of a tool holder is clamped into a recess (8) (Fig. 1, not shown) in the shank 6 of the tool holder by a bolt 1 whose axis is inclined to the upper surface of the tip 3, or to the upper surface of a chip breaker 2, so that on tightening the bolt 1 its head bears on the tip 3 or chip breaker 2 to clamp the parts into the recess (8) whilst component forces also force the parts against the sides 11 of the recess (8). A chamfer is provided under the bolt head 9 to give linear contact and a tapped hole 5 in the shank has a counterbored portion 7 to allow flexibility in the clamping bolt. Left or right hand threads may be used on the clamping bolt 1. |
