公开(公告)号：US4480950A

公开(公告)日：1984-11-06

申请号：US413463

申请日：1982-08-31

申请人： Harald Kraft ,  Peter Leimanis

发明人： Harald Kraft ,  Peter Leimanis

IPC分类号： B23B27/16 ,  B26D1/00

CPC分类号： B23B27/1651 ,  B23B2200/088 ,  B23B2226/18 ,  Y10T407/2274 ,  Y10T407/2286

摘要： A cutting tool, such as a turning tool, includes a clamping holder with a recess in one of its surfaces, a cutting bit insertable into the recess, and a clamping shoe secured to the clamping holder by a clamping bolt. The clamping shoe has a projecting member engageable within a depression located in the surface of the cutting bit for securing the cutting bit in the recess of the clamping holder. The depression is defined in the surface of the cutting bit by a closed line formed in part by convexly curved first lines and by second lines interconnecting the ends of the first lines. The depression, as viewed in plan, has an oblong or star-shaped configuration. The lines defining such configuration can be convex, concave or rectilinear. The surface of the depression within the closed line is formed by a radius centered at points located outwardly from the surface of the cutting bit containing the depression. Accordingly, the length of the radius is greater than the depth of the depression. The projecting member on the clamping shoe has a half-barrel or half-cylinder shape so that it forms a punctiform contact with the surface in the depression.

摘要翻译： 诸如转动工具的切削工具包括：夹持器，其夹具在其表面中的一个上具有凹部，可插入到凹部中的切削刀头和通过夹紧螺栓固定到夹紧夹持器的夹紧爪。 夹紧靴具有可接合在位于切削刀头的表面中的凹部内的突出构件，用于将切削刀头固定在夹持器的凹部中。 凹陷在切削刃的表面中由部分由凸形弯曲的第一线形成的闭合线和通过互连第一线的端部的第二线限定。 如图所示，凹陷具有长方形或星形配置。 限定这种构造的线可以是凸的，凹的或直线的。 闭合线内的凹陷表面由位于从包含凹陷的切削钻头的表面向外的点处的中心形成。 因此，半径的长度大于凹陷的深度。 夹紧靴上的突出构件具有半筒形或半圆柱形形状，使得其与凹部中的表面形成点状接触。