公开(公告)号：US20030210963A1

公开(公告)日：2003-11-13

申请号：US10392897

申请日：2003-03-21

Applicant: SANDVIK AB

Inventor： Isak Kakai ,  Lars-Gunnar Wallstrom

IPC: B23B051/00

CPC classification number: B23B31/201 ,  B23B31/008 ,  B23B31/1107 ,  B23B31/1122 ,  B23B2222/28 ,  B23B2260/034 ,  B23B2265/32 ,  Y10T408/9098

Abstract: A rotary tool for chip removing machining, for example a milling cutter or a drill, includes a shaft, a holder, and a cutting part. The shaft has a conical seating arranged in its front end. The holder has a slightly conical recess, whose cross-sectional dimension decreases toward the open end of the recess. The cutting part has a slightly conical pin designed to be received in the recess and has a cross-sectional dimension which increases in the direction of the free end of the pin. The recess is formed by a wall which is elastically flexible in a radial direction. When the holder is drawn axially into the seating, the wall is flexed radially inwardly, causing the conical surface of the recess to tightly grip the conical surface of the pin and create an interference fit of the pin in the recess.

Abstract translation: 用于切屑去除加工的旋转工具，例如铣刀或钻头，包括轴，保持器和切割部。 轴在其前端设置有锥形座。 保持器具有稍微锥形的凹部，其横截面尺寸朝向凹部的开口端减小。 切割部分具有设计成容纳在凹部中的略微锥形的销，并且具有在销的自由端的方向上增加的横截面尺寸。 凹部由径向弹性挠曲的壁形成。 当支架被轴向拉入座时，壁径向向内弯曲，导致凹槽的锥形表面紧紧地夹住销的锥形表面，并产生销在凹槽中的过盈配合。