公开(公告)号：US06312201B1

公开(公告)日：2001-11-06

申请号：US09440279

申请日：1999-11-15

申请人： Hidehiko Nagaya ,  Hiroshi Shimomura ,  Masayuki Okawa ,  Kazuya Yamazaki ,  Takamasa Shimano

发明人： Hidehiko Nagaya ,  Hiroshi Shimomura ,  Masayuki Okawa ,  Kazuya Yamazaki ,  Takamasa Shimano

IPC分类号： B23B3110

CPC分类号： B23B31/005 ,  B23B27/007 ,  B23B2231/0204 ,  B23B2240/28 ,  Y10T29/49865 ,  Y10T82/2585 ,  Y10T279/17957 ,  Y10T279/17965 ,  Y10T403/217 ,  Y10T403/48 ,  Y10T403/635 ,  Y10T403/66 ,  Y10T407/1932 ,  Y10T407/227 ,  Y10T409/30952

摘要： In an interference fit type cutting tool according to the present invention, a head section and a shank section are fitted together by shrinkage fitting. The shank section is provided with a shaft portion and a taper portion. The head section is provided with a hole portion to be fitted on the shaft portion, and a tapered portion to be fitted on the taper portion. The hole portion and the tapered portion have an interference, and the inner diameters thereof are smaller than the outer diameters of the shaft portion and the taper portion. Two-surface restraint is established by fixing the shaft portion and the hole portion, and the taper portion and the tapered portion with the interference pressure by shrinkage fitting. A key is formed on the leading end face of the shaft portion, a key groove is formed in the bottom face of the hole portion, and the key and the key groove are fitted together. Side faces of the key and the key groove are nearly orthogonal to the principal force of cutting resistance, thereby enhancing dynamic stiffness.

摘要翻译： 在根据本发明的过盈配合型切削工具中，通过收缩配合将头部和柄部装配在一起。 柄部设置有轴部和锥形部。 头部设置有要装配在轴部上的孔部分和装配在锥形部分上的锥形部分。 孔部和锥形部分具有干涉，其内径小于轴部和锥形部的外径。 通过利用收缩配合固定轴部和孔部以及具有干涉压力的锥形部和锥形部来建立双面约束。 在轴部的前端面上形成有键，在孔部的底面形成有键槽，键和键槽嵌合在一起。 键和键槽的侧面与切割阻力的主力几乎正交，从而提高动态刚度。

公开(公告)号：US5443335A

公开(公告)日：1995-08-22

申请号：US187283

申请日：1994-01-27

申请人： Takamasa Shimano ,  Tatsuo Arai ,  Takayoshi Saito

发明人： Takamasa Shimano ,  Tatsuo Arai ,  Takayoshi Saito

IPC分类号： B23C5/06 ,  B23C5/20 ,  B23C5/22

CPC分类号： B23C5/2221 ,  B23C2200/123 ,  B23C2200/125 ,  B23C2200/203 ,  B23C2200/205 ,  B23C2200/361 ,  B23C2200/367 ,  Y10T407/1924 ,  Y10T407/23

摘要： The invention relates to a cutting insert. The cutting insert has a polygonal tabular body having a main cutting edge and a sub-cutting edge. A rake surface connected to the main cutting edge and the sub-cutting edge is composed of a plurality of consecutive component surfaces so as to present a multi-face surface which is curved and convex along the circumference of the body. The consecutive component surfaces are demarcated from adjacent component surfaces by edges lines L.sub.1, L.sub.2 which at their one end reach the main cutting edge. The intersection angles at which the component surfaces intersect the end surface connected to the main cutting edge are so varied in a stepped manner that the intersection angle of the component surface most remote from the nose portion is the smallest. The third component surface is curved along the circumference of the body so as to be convex outward, so that the portion of the main cutting edge associated with this component surface is also curved to be convex outward.

摘要翻译： 本发明涉及一种切削刀片。 切削刀片具有多边形片状体，其具有主切削刃和副切削刃。 连接到主切削刃和副切削刃的前刀面由多个连续的部件表面构成，以便呈现沿主体圆周弯曲和凸出的多面表面。 连续的部件表面由相邻部件表面由边缘线L1，L2分开，边缘线L1，L2在其一端到达主切削刃。 部件表面与连接到主切削刃的端面相交的相交角度以使得最远离刀头部分的部件表面的相交角度最小的阶梯式变化。 第三部件表面沿着主体的圆周弯曲以向外凸出，使得与该部件表面相关联的主切削刃的部分也弯曲成向外凸出。

公开(公告)号：US5791831A

公开(公告)日：1998-08-11

申请号：US711707

申请日：1996-08-30

申请人： Takamasa Shimano ,  Tatsuo Arai ,  Takayoshi Saito

发明人： Takamasa Shimano ,  Tatsuo Arai ,  Takayoshi Saito

IPC分类号： B23C5/20 ,  B23C5/22

CPC分类号： B23C5/2221 ,  B23C2200/123 ,  B23C2200/125 ,  B23C2200/203 ,  B23C2200/205 ,  B23C2200/367 ,  Y10T407/1924 ,  Y10T407/23

摘要： A cutting insert having a generally polygonal tabular form, includes a main cutting edge formed along at least one of the ridges or edges of the upper and lower surfaces which oppose each other in the direction of the thickness of the tabular form, and a face connected to the main cutting edge is formed on the flank or flanks which surround and define the upper and lower surfaces. The face includes a convex curved surface and an angle of intersection between the convex curved surface and one of the upper and lower surfaces progressively changes. The angle of intersection between the convex curved surface and one of the upper and lower surfaces progressively increases or decreases along the length of the face from the face end adjacent to a free end of the tool to a face end adjacent to the base end of the tool. In a preferred embodiment, a flat surface is disposed on each side of the convex curved surface and each flat surface intersects one of the upper and lower surfaces at a constant angle. The flat surface adjacent to the face end adjacent to the free end of the tool intersects with one of the upper and lower surfaces at an angle which is greater or smaller than the angle of intersection between the flat surface adjacent to the face end adjacent to the base end of the tool and one of the upper and lower surfaces of the cutting insert.

摘要翻译： 具有大致多边形平板形状的切削刀片包括沿着所述上表面和下表面的至少一个脊或边缘形成的主切削刃，所述主棱边或所述边缘在所述平板形状的厚度方向上彼此相对， 主切削刃形成在围绕并限定上表面和下表面的侧面或侧面上。 所述面包括凸曲面，并且所述凸曲面与所述上表面和所述下表面中的一个之间的交叉角逐渐变化。 凸曲面与上表面和下表面中的一个之间的交叉角度沿着从与工具的自由端相邻的面端部到面向与端部的基端相邻的面端部的面的长度逐渐增大或减小 工具。 在优选实施例中，平坦表面设置在凸曲面的每一侧上，并且每个平坦表面以恒定的角度与上表面和下表面之一相交。 与工具的自由端相邻的端面相邻的平面与上表面和下表面中的一个相交角度大于或小于与邻近的表面相邻的平面之间的交叉角度 刀具的基端和切削刀片的上表面和下表面之一。