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公开(公告)号：US5017055A
公开(公告)日：1991-05-21
申请号：US430928
申请日：1989-11-02
申请人： Osamu Tsujimura , Tatsuo Arai , Masaaki Nakayama , Masayuki Okawa
发明人： Osamu Tsujimura , Tatsuo Arai , Masaaki Nakayama , Masayuki Okawa
CPC分类号： B23C5/1045 , B23C5/2221 , B23C2200/0416 , B23C2200/0483 , Y10T407/1924 , Y10T407/23
摘要： An indexable cutter insert for a rotary cutter includes a plate having front and rear faces. The front face has at least one pair of first and second marginal ridges intersecting each other. The first marginal ridge is generally arcuately shaped when viewed in a direction perpendicular to the front face and serves as a main cutting edge. The second marginal ridge is short and straight and serves as a second cutting edge. The main cutting edge has a leading end portion intersecting the second cutting edge so as to define an obtuse angle therebetween. The front face serves as a rake surface for the main and second cutting edges and has a marginal surface portion disposed adjacent to the second cutting edge and the leading end portion of the main cutting edge. The marginal surface portion is convexly curved so as to slope toward the rear face toward the second cutting edge.
摘要翻译： 用于旋转切割器的可转位刀片插入件包括具有前表面和后表面的板。 前表面具有彼此相交的至少一对第一和第二边缘脊。 当从垂直于前表面的方向观察时，第一边缘脊通常呈弧形，并且用作主切割刃。 第二个边缘边缘是短而直的，可以作为第二个边缘。 主切削刃具有与第二切削刃相交的前端部，以便在它们之间形成钝角。 前表面用作主和第二切割刃的前刀面，并且具有邻近第二切削刃和主切削刃的前端部设置的边缘表面部分。 边缘表面部分是凸形弯曲的，以便朝向第二切割刃的后表面倾斜。
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公开(公告)号：US4898499A
公开(公告)日：1990-02-06
申请号：US164442
申请日：1988-03-04
申请人： Osamu Tsujimura , Tatsuo Arai , Masaaki Nakayama , Masayuki Okawa
发明人： Osamu Tsujimura , Tatsuo Arai , Masaaki Nakayama , Masayuki Okawa
CPC分类号： B23C5/1045 , B23C5/2221 , B23C2200/0416 , B23C2200/0483 , Y10T407/1924 , Y10T407/1948 , Y10T407/21 , Y10T407/23
摘要： A ball end mill includes an end mill body having an axis of rotation therethrough and an indexable cutter insert releasably attached to a forward end portion of the body. The insert includes a plate having front and rear faces. The front face has at least one generally arcuate first marginal ridge with the first marginal ridge serving as a respective generally arcuate main cutting edge. The front face has at least one short second marginal ridge with the second marginal ridge serving as a respective short cutting edge. The main cutting edge has a leading end portion disposed at one end thereof and intersecting the short cutting edge in such a manner that an angle defined by the leading end portion and the short cutting edge is obtuse. The front face serves as a rake surface for the cutting edges and has a marginal surface portion disposed adjacent to the short cutting edge and the leading end portion. The marginal surface portion is convexly curved so as to slope toward the rear face toward the short cutting edge. The arrangement of the first insert with respect to the body is such that the leading end portion of the main cutting edge is disposed adjacent to the axis of the body, and that the short cutting edge extends from the leading end portion beyond the axis of the body toward the rearward end portion of the body when viewed in a direction generally perpendicular to the front face.
摘要翻译： 球头铣刀包括端铣刀主体，其具有穿过其的旋转轴线和可释放地附接到主体的前端部分的可转位刀具刀片。 插入件包括具有前表面和后表面的板。 前表面具有至少一个大致为弧形的第一边缘脊，第一边缘脊用作相应的大致弓形的主切削刃。 前表面具有至少一个短的第二边缘脊，第二边缘用作相应的短切割边缘。 主切削刃具有设置在其一端并与短切削刃相交的前端部，使得由前端部和短切削刃限定的角度是钝的。 前表面用作切削刃的前刀面，并且具有邻近短切削刃和前端部设置的边缘表面部分。 边缘表面部分是凸形弯曲的，以便朝向短切削刃朝向后表面倾斜。 第一插入件相对于主体的布置使得主切削刃的前端部被设置成与主体的轴线相邻，并且短切削刃从前端部分延伸超过主体的轴线 当从大致垂直于前表面的方向观察时，本体朝向身体的后端部分。
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公开(公告)号：USD308874S
公开(公告)日：1990-06-26
申请号：US181152
申请日：1988-04-13
申请人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
设计人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
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公开(公告)号：US4919573A
公开(公告)日：1990-04-24
申请号：US246639
申请日：1988-09-20
申请人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
发明人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
CPC分类号： B23C5/2221 , B23C5/1045 , B23C2200/083 , B23C2200/123 , B23C2200/165 , B23C2200/201 , B23C2200/203 , B23C2210/168 , Y10T407/192 , Y10T407/1924 , Y10T407/2274
摘要： A ball end mill includes an end mill body, an indexable cutter insert, a clamp screw and shift preventing mechanism. The body has an insert receiving recess formed in a forward end portion thereof. The insert has a front face, a rear face and at least two convexly curved side faces, and has at least two convexly curved main cutting edges each defined by the intersection of a respective one of the convexly curved side faces with the front face. The insert is received in the insert receiving recess with the rear face mated with the bottom face of the recess in such a manner that one of the main cutting edges is indexed in a cutting position. The shift preventing mechanism includes an engaging recess formed in one of the bottom face of the insert receiving recess and the rear face of the insert and an engaging projection complementary to the engaging recess and provided on the other of the bottom face of the insert receiving recess and the rear face of the insert so as to be brought into engagement with the engaging recess.
摘要翻译： 球头铣刀包括立铣刀主体，可转位刀具插入件，夹紧螺钉和换档防止机构。 主体具有形成在其前端部的插入物容纳凹部。 插入件具有前表面，后表面和至少两个凸形弯曲的侧面，并且具有至少两个凸形弯曲的主切削刃，每个主切削刃由相应的一个凸形弯曲侧面与前表面的交点限定。 插入件被容纳在插入物容纳凹部中，其后表面与凹部的底面配合，使得主切削刃中的一个在切割位置被分度。 防止移动机构包括形成在插入物容纳凹部的底面和插入件的后表面中的一个中的接合凹部和与接合凹部互补的接合突起，并且设置在插入物容纳凹部的另一个底面上 和插入件的后表面与接合凹部接合。
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公开(公告)号：US4883391A
公开(公告)日：1989-11-28
申请号：US247347
申请日：1988-09-21
申请人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
发明人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
CPC分类号： B23C5/1045 , B23C5/2221 , B23C2200/083 , B23C2200/123 , B23C2200/201 , B23C2200/203 , Y10T407/192 , Y10T407/1924 , Y10T407/1936 , Y10T407/196 , Y10T407/1964
摘要： A ball end mill includes a body, an indexable cutter insert and a clamp screw. The body has a recess formed in a forward end portion thereof and a bore formed therein and opening to a bottom face of the recess. The bore includes a cylindrical portion disposed adjacent the bottom face and an internally threaded portion greater in diameter than the internally threaded portion. The insert includes a front face, a rear face and at least two convexly curved side faces. The front face has at least two convexly curved main cutting edges each defined by the intersection of a respective one of the curved side faces with the front face. The insert has an aperture formed therethrough and extending generally perpendicular to the rear face. The insert is releasably mounted in the recess with the rear face held in contact with the bottom face in such a manner that one of the main cutting edges is indexed in a cutting position. The clamp screw includes an externally threaded portion and a cylindrical engaging portion disposed coaxially with the externally threaded portion and being greater in diameter than the threaded portion. The clamp screw passes through the aperture of the insert and is received by the bore in such a manner that the externally threaded portion is threaded into the internally threaded portion while the cylindrical engaging portion is held in engagement with the cylindrical portion.
摘要翻译： 球头铣刀包括主体，可转位刀具刀片和夹紧螺钉。 本体具有形成在其前端部分中的凹部和形成在其中并且通向凹部的底面的孔。 孔包括邻近底面设置的圆柱形部分和直径大于内螺纹部分的内螺纹部分。 插入件包括前表面，后表面和至少两个凸形弯曲的侧面。 前表面具有至少两个凸曲面的主切削刃，每个主切削刃由相应的一个弯曲侧面与前表面的交点限定。 插入件具有穿过其形成并且大致垂直于后表面延伸的孔。 插入件可释放地安装在凹部中，使得后表面与底面保持接触，使得主切削刃中的一个在切割位置上被分度。 夹紧螺钉包括外螺纹部分和与外螺纹部分同轴设置并且直径大于螺纹部分的圆柱形接合部分。 夹紧螺钉穿过插入件的孔，并且被孔接收，使得外螺纹部分被拧入内螺纹部分中，同时圆柱形接合部分保持与圆柱形部分接合。
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公开(公告)号：USD309317S
公开(公告)日：1990-07-17
申请号：US181153
申请日：1988-04-13
申请人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
设计人： Osamu Tsujimura , Tatsuo Arai , Masayuki Okawa
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公开(公告)号：US5156503A
公开(公告)日：1992-10-20
申请号：US544176
申请日：1990-06-26
CPC分类号： B23B27/1662 , B23B27/007 , Y10S408/713 , Y10T408/865 , Y10T408/89
摘要： A boring bar tool for use with a tip is disclosed which has a tool body. The tip is mounted to one side of a forward end of the nose of the tool body. A neck is formed at a proximal end of the nose, and a shank in the form of a shaft is formed at a proximnal end of the neck. The neck has a cross-sectional area in a plane perpendicular to an axis of the shank which is larger than the cross-sectional area of the shank in the plane.
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公开(公告)号：US4834591A
公开(公告)日：1989-05-30
申请号：US164443
申请日：1988-03-04
CPC分类号： B23C5/1045 , B23C5/2221 , B23C2200/0416 , B23C2200/0483 , Y10T407/23 , Y10T407/235
摘要： An indexable cutter insert for a rotary cutter includes a plate defined by a front face, a rear face generally parallel to said front face and plural pairs of first and second side faces disposed alternately and lying between the front and rear faces. Each side face extends generally perpendicular to the front and rear faces. Each first side face is longer than each second side face and is generally arcuately convex as viewed in a direction perpendicular to the front face while each second side face is generally planar. The plate has a plurality of generally arcuate convex front cutting edges each defined by the intersection of a respective one of the first side faces with the front face and a plurality of generally arcuate convex rear cutting edges each defined by the intersection of a respective one of the first side faces with the rear face. A front marginal surface portion of the front face disposed adjacent to and extending along each second side face is convexly curved so as to slope toward the rear face toward the second side face while a rear marginal surface portion of the rear face disposed adjacent to and extending along each second side face is convexly curved so as to slope toward the front face toward the second side face.
摘要翻译： 用于旋转切割机的可转位刀片插入件包括由前表面，大体上平行于所述前表面的后表面和交替地位于前表面和后表面之间的多对第一和第二侧面限定的板。 每个侧面大致垂直于前后面延伸。 每个第一侧面比每个第二侧面长，并且在垂直于前表面的方向上观察时通常呈弧形凸起，而每个第二侧面大致为平面。 所述板具有多个大致弓形的凸形前切削刃，每个所述凸形前切削刃由所述第一侧面中的相应一个与所述前表面相交而限定，以及多个大致弓形的凸形后切削刃， 第一面与后面相面对。 所述前表面的与所述第二侧面相邻并且沿着所述第二侧面延伸的前边缘表面部分凸出地弯曲成朝向所述后表面朝向所述第二侧面倾斜，而所述后表面的后边缘表面部分邻近并延伸 沿着每个第二侧面凸出地弯曲，以朝着朝向第二侧面的前面倾斜。
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公开(公告)号：US5261767A
公开(公告)日：1993-11-16
申请号：US917189
申请日：1992-07-22
CPC分类号： B23B27/007 , B23B2200/3618 , B23B2205/04 , Y10S408/713 , Y10T408/865 , Y10T408/89
摘要： A boring bar tool for use with a tip is disclosed which has a tool body. The tip is mounted to one side of a forward end of the nose of the tool body. A neck is formed at a proximal end of the nose, and a shank in the form of a shaft is formed at a proximal end of the neck. The neck has a cross-sectional area in a plane perpendicular to an axis of the shank which is larger than the cross-sectional area of the shank in the plane.
摘要翻译： 公开了一种用于尖端的镗杆工具，其具有工具主体。 尖端安装在工具主体的鼻部前端的一侧。 在鼻子的近端形成颈部，并且在颈部的近端形成有轴形的柄。 颈部在垂直于柄的轴线的平面中具有比在该平面中的柄部的横截面积大的横截面面积。
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公开(公告)号：US4927303A
公开(公告)日：1990-05-22
申请号：US412495
申请日：1989-09-26
CPC分类号： B23C5/1045 , B23C5/1027 , B23C5/2221 , B23C2200/123 , B23C2200/125 , B23C2200/201 , B23C2200/203 , Y10S408/713 , Y10T407/1924 , Y10T407/1948 , Y10T408/905 , Y10T408/909
摘要： In a ball end mill, a rotational locus is described by cutting edges of respective throw-away tips mounted to a tool body. The cutting edge of one of the tips and the cutting edge of the adjacent tip overlap with each other, and the center of the overlapping portion is located at a position that is substantially 45.degree. from a forward end of the cutting edge along a 1/4 arc of the rotational locus therefrom. The overlapping length is 1/4 to 1/3 of a diameter of the rotational locus in an arcuate length thereof. A planar section is formed at a side surface of at least one of the tips, which is located at a forward end of the tool body. The side surface is located adjacent a forward end of the cutting edge. A planar surface is formed at at least one of the tip pockets formed in the tool body, at a position facing toward the planar section. The planar surface is subject to a radial cutting force acting from the throw-away tip having the planar section. The planar section is abutted against the planar surface.
摘要翻译： 在球头立铣刀中，通过切削安装到工具主体上的各个抛弃尖端的切削刃描述旋转轨迹。 尖端之一和相邻尖端的切割边缘的切割边缘彼此重叠，并且重叠部分的中心位于距切割边缘的前端大约45°的位置，沿着1 / 4弧的旋转轨迹。 重叠长度为弧形长度的旋转轨迹的直径的1/4至1/3。 平面部分形成在位于工具主体的前端的至少一个尖端的侧表面。 侧表面邻近切削刃的前端定位。 在形成在工具主体中的至少一个尖端凹坑处，在面向平面部分的位置处形成平坦表面。 平面表面受到从具有平面部分的丢弃尖端作用的径向切割力。 平面部分抵靠平面表面。
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