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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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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：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：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：US5193945A
公开(公告)日：1993-03-16
申请号：US840086
申请日：1992-02-24
申请人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito
发明人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito
CPC分类号： B23B27/1666 , B23C5/003 , B23C5/2269 , B23C2210/166 , Y10T407/13 , Y10T407/22 , Y10T407/2272
摘要： A cutting tool having a positioning block inserted between the cutting insert and the insert-receiving seat is disclosed. The disclosed cutting tool demonstrates excellent resistance to damage by severe vibration caused by the milling process. The cutting tool of the present invention comprises (a) a tool body having a recess formed at a forward end thereof and defining a insert-receiving seat; (b) a cutting insert; (c) a positioning block to be placed between the cutting insert and said insert-receiving seat, having a top and bottom faces and having a hardness thereof which is lower than that of a surface of an insert-receiving seat; and (d) clamp means for securing the cutting insert and the positioning block on the insert-receiving seat. The above described positioning block is able to absorb some extent of vibration of the cutting insert during the milling process. According to the present invention, there is also provided the cutting tool in which a positioning block has two layers. A hardness of a surface of the insert-receiving seat is higher than that of the first layer but is lower than that of the second layer.
摘要翻译： 公开了一种具有插入切削刀片和刀片接收座之间的定位块的切削工具。 所公开的切削工具通过铣削过程引起的严重振动表现出优异的耐损伤性。 本发明的切削工具包括（a）工具主体，其具有形成在其前端并形成插入件接收座的凹部; （b）切削刀片; （c）定位块，其被放置在所述切削刀片和所述刀片接收座之间，具有顶面和底面，并且其硬度低于插入物接收座的表面的硬度; 和（d）用于将切削刀片和定位块固定在刀片接收座上的夹紧装置。 上述定位块在铣削过程中能够吸收切削刀片的一定程度的振动。 根据本发明，还提供了一种定位块具有两层的切削工具。 插入座接受座的表面的硬度高于第一层的硬度，但低于第二层的硬度。
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公开(公告)号：US5100268A
公开(公告)日：1992-03-31
申请号：US537949
申请日：1990-06-14
IPC分类号： B23B27/16
CPC分类号： B23B27/1677 , Y10T407/2276 , Y10T407/2286
摘要： An insert clamped tool includes a tool holder, a cutting insert, a clamp and a pressing mechanism for pressing the clamp to urge the cutting insert against the bottom and the side walls of the insert-receiving pocket. The tool holder includes an insert-receiving pocket formed at a forward end thereof and having a bottom and side walls. The tool holder has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The cutting insert is received on the insert-receiving pocket. The clamp is held into abutting engagement with the cutting insert. The clamp has a sliding face held in contacting engagement with the inclined surface of the tool holder.
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公开(公告)号：US5332339A
公开(公告)日：1994-07-26
申请号：US900490
申请日：1992-06-18
申请人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito , Tatsuo Arai
发明人： Masaaki Nakayama , Masayuki Okawa , Junichi Saito , Tatsuo Arai
CPC分类号： B23B27/007 , B23B27/00 , Y10T407/227 , Y10T407/2276 , Y10T407/28
摘要： A throw-away cutting tool is disclosed. The tool body of the cutting tool consists of a rod-like shank and a bit mounting component arranged at the front end of the shank. The shank is made of cemented carbide, and is formed with a mounting wall extending toward the front end of the tool body. The bit mounting component is made of steel or sintered metal, and is formed with a bit mounting seat defined by a bottom wall and side walls. In the above cutting tool, high resistance against the cutting force produced by cutting operation can be obtained and separation of the shank and the bit mounting component can be prevented; and high rigidity of the tool body is ensured, the damping capacity of the tool body is increased, and therefore vibration and chatter of the cutting tool can be effectively prevented.
摘要翻译： 公开了一种丢弃的切削工具。 切割工具的工具主体由杆状柄部和布置在柄部前端的钻头安装部件组成。 柄由硬质合金制成，并且形成有朝向工具主体的前端延伸的安装壁。 钻头安装部件由钢或烧结金属制成，并且形成有由底壁和侧壁限定的钻头安装座。 在上述切削工具中，可以获得高切削作用产生的切削力的抵抗力，能够防止柄部和钻头安装部件的分离。 确保了工具体的高刚性，能够提高工具主体的阻尼能力，能够有效地防止切削工具的振动和颤动。
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公开(公告)号：US5085542A
公开(公告)日：1992-02-04
申请号：US570854
申请日：1990-08-22
申请人： Masaaki Nakayama , Masayuki Okawa
发明人： Masaaki Nakayama , Masayuki Okawa
CPC分类号： B23B27/141 , B23B2200/085 , B23B2200/128 , B23B2200/205 , Y10T407/235
摘要： There is disclosed an indexable cutting insert including at least one cutting surface, at least one flank intersecting with the cutting surface, cutting blade defined along the cross line between the cutting surface and the flank, at least one primary nick formed on the flank so as to extend in a direction perpendicular to the cutting blade, and at least one secondary nick formed on the cutting surface in succession to the primary nick so as to extend in a direction perpendicular to the cutting blade.
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