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    End mill with throw-away tip
    1.
    发明授权
    End mill with throw-away tip 失效
    端铣刀抛出尖端

    公开(公告)号：US4808045A

    公开(公告)日：1989-02-28

    申请号：US266339

    申请日：1987-06-23

    申请人： Osamu Tsujimura ,  Takayoshi Saito ,  Tatsuo Arai ,  Yasuzo Funaki

    发明人： Osamu Tsujimura ,  Takayoshi Saito ,  Tatsuo Arai ,  Yasuzo Funaki

    IPC分类号： B23B27/16 ,  B23B51/04 ,  B23C5/10 ,  B23C5/20 ,  B23C5/22 ,  B23B51/00

    CPC分类号： B23C5/1045 ,  B23B27/1622 ,  B23B27/164 ,  B23B51/048 ,  B23C5/109 ,  B23C5/202 ,  B23C5/2243 ,  B23B2200/083 ,  B23B2200/085 ,  B23B2200/123 ,  B23B2200/165 ,  B23B2200/202 ,  B23B2200/204 ,  Y10T407/1924 ,  Y10T407/1962 ,  Y10T408/895 ,  Y10T408/896

    摘要： An end mill includes a body having a core receiving recess and a cutting insert releasably mounted thereon. An upper surface of the insert has a first cutting edge ridge serving as an outer peripheral cutting edge, a second cutting edge ridge providing an end cutting edge and a third cutting edge ridge providing an inner peripheral cutting edge. The upper surface has a corner where the second and third cutting edge ridge intersecting each other. The upper surface is composed of a central portion and a corner portion including the corner, whereby the third cutting edge ridge comprising a first edge portion defined by a ridge of the corner portion and a second edge portion defined by a ridge of the central portion. At least that portion of the corner portion disposed adjacent the central portion is inclined providing a thickness of the insert is progressively reduced toward the corner. The insert has a negative radial rake at the outer peripheral cutting edge and a positive axial rake. The second edge portion extends radially outwardly of the body and in a direction opposite to the direction of rotation of the body from that point where the first and second edge portions intersect. The distance between the corner and the axis is longer than between the axis and a point at which a line extending radially outwardly of the body from the axis and a line on which a corner ridge lies cross at right angles.

    摘要翻译： 端铣刀包括具有芯容纳凹部的主体和可释放地安装在其上的切削刀片。 插入件的上表面具有用作外周切削刃的第一切削刃脊，提供端部切削刃的第二切削刃脊和提供内周切削刃的第三切削刃。 上表面具有第二和第三切割刃彼此相交的角部。 上表面由包括角部的中心部分和角部组成，由此第三切割刃脊包括由角部的脊部限定的第一边缘部分和由中心部分的脊部限定的第二边缘部分。 至少设置在中心部分附近的角部的那部分是倾斜的，使得插入件的厚度逐渐减小到拐角。 插入件在外周切削刃处具有负的径向前刀面，并具有正的轴向前刀。 所述第二边缘部分从所述第一和第二边缘部分相交的点向所述主体的径向向外延伸并且沿与所述主体的旋转方向相反的方向延伸。 角部和轴线之间的距离比在轴线与从轴线径向向外延伸的线与角脊线成直角交叉的线之间的距离长。

    End mill with throw-away tip
    2.
    发明授权
    End mill with throw-away tip 失效
    端铣刀抛出尖端

    公开(公告)号：US4693641A

    公开(公告)日：1987-09-15

    申请号：US815055

    申请日：1985-12-31

    申请人： Osamu Tsujimura ,  Takayoshi Saito ,  Tatsuo Arai

    发明人： Osamu Tsujimura ,  Takayoshi Saito ,  Tatsuo Arai

    IPC分类号： B23B27/16 ,  B23B51/04 ,  B23C5/10 ,  B23C5/20

    CPC分类号： B23C5/1045 ,  B23B27/1622 ,  B23B27/164 ,  B23B51/048 ,  B23C5/109 ,  B23B2200/083 ,  B23B2200/085 ,  B23B2200/123 ,  B23B2200/165 ,  B23B2200/202 ,  B23B2200/204 ,  Y10S408/713 ,  Y10T407/1924 ,  Y10T407/1946 ,  Y10T407/1948 ,  Y10T407/23 ,  Y10T407/235 ,  Y10T408/8953

    摘要： An end mill comprises an end mill body and a throw-away tip mounted on a forward end of the end mill body so as to be spaced from an axis thereof. A core receiving recess is formed at a center of a forward end face of the end mill body and has a size equal to or greater than a distance between the throw-away tip and the axis of the end mill body. The throw-away tip has an end cutting edge formed by a cutting edge ridge located adjacent the forward end of the end mill body and extending from an outer peripheral side of the end mill body toward an inner peripheral side thereof, and outer and inner peripheral cutting edges respectively formed by cutting edge ridges respectively extending from outer and inner peripheral ends of the end cutting edge toward a rearward end of the end mill body. The end mill body may mount at least two throw-away tips disposed symmetrically with respect to the axis thereof.

    摘要翻译： 端铣刀包括立铣刀本体和安装在端铣刀体的前端上以与其轴线间隔开的抛弃尖端。 在端铣刀主体的前端面的中心处形成有芯容纳凹部，其尺寸等于或大于端铣刀体的抛出尖端和轴线之间的距离。 抛弃尖端具有由位于端铣刀主体的前端附近的切削刃脊形成的端部切削刃，并且从端铣刀体的外周侧向其内周侧延伸，外周和内周 切削刃分别由切削刀刃形成，刀尖分别从端部切削刃的外周端和内周端朝向端铣刀体的后端延伸。 端铣刀体可以安装相对于其轴线对称设置的至少两个丢弃尖端。

    Inserted rotary cutter
    4.
    发明授权
    Inserted rotary cutter 失效
    插入旋转切割机

    公开(公告)号：US4954021A

    公开(公告)日：1990-09-04

    申请号：US363937

    申请日：1989-06-09

    申请人： Osamu Tsujimura ,  Tatsuo Arai ,  Takayoshi Saito

    发明人： Osamu Tsujimura ,  Tatsuo Arai ,  Takayoshi Saito

    IPC分类号： B23C5/20 ,  B23C5/22

    CPC分类号： B23C5/207 ,  B23C5/2269 ,  B23C2200/125 ,  Y10T407/1908 ,  Y10T407/191 ,  Y10T407/1946

    摘要： An inserted rotary cutter has a tool body, at least one first insert and at least one wiper insert. The body has a plurality of insert mounting seats formed on a forward end portion thereof. Each insert is releasably mounted to a respective insert mounting seat and has had at least one end cutting edge. The inserts are arranged so that the end cutting edge of the wiper insert projects from the end cutting edge of the first insert forwardly from the body. At least one indicating mark is provided on the body for specifying the insert mounting seat, on which the wiper insert is mounted. The insert mounting seat specified by the mark has a dimensional precision within 0.01 mm in a direction along the axis of rotation.

    摘要翻译： 插入的旋转切割器具有工具主体，至少一个第一插入件和至少一个擦拭器插入件。 主体具有形成在其前端部分上的多个插入安装座。 每个插入件可释放地安装到相应的插入件安装座上并具有至少一个端部切削刃。 插入件布置成使得擦拭器嵌件的端部切割边缘从第一嵌件的端部切割边缘向前突出。 在主体上设置至少一个指示标记，用于指定安装刮水器插入件的插入件安装座。 由标记指定的刀片安装座在沿着旋转轴的方向上的尺寸精度为0.01mm以内。

    Insert rotary cutter
    5.
    发明授权
    Insert rotary cutter 失效
    插入旋转切割机

    公开(公告)号：US4930945A

    公开(公告)日：1990-06-05

    申请号：US352249

    申请日：1989-05-16

    申请人： Tatsuo Arai ,  Takayoshi Saito ,  Osamu Tsujimura ,  Hiroaki Hayashizaki

    发明人： Tatsuo Arai ,  Takayoshi Saito ,  Osamu Tsujimura ,  Hiroaki Hayashizaki

    IPC分类号： B23C5/20

    CPC分类号： B23C5/207 ,  B23C2200/201 ,  Y10T407/192 ,  Y10T407/1924 ,  Y10T407/1932 ,  Y10T407/23

    摘要： An insert rotary cutter includes a cutter body having a forward end face and at least one first cutter insert releasably attached to the cutter body. The first cutter insert is of a generally triangular shape including a front face having three marginal ridges and three corner ridges. Each marginal ridge is comprised of first, second and third ridge portions. The insert has three main cutting edges each defined by a respective first ridge portion, three auxiliary cutting edges each defined by a respective third ridge portion, three corner cutting edges each defined by a respective corner ridge, and three relief cutting edges each defined by a respective second ridge portion. One of the corner cutting edges and the main and auxiliary cutting edges which intersect the corner cutting edge are indexed in active cutting position. The indexed main cutting edge extends generally axially from the body while the indexed auxiliary cutting edge extends slightly beyond the forward end face. The relief cutting edge which intersects the indexed auxiliary cutting edge being displaced rearwardly from the indexed auxiliary cutting edge.

    Insert boring tool and cutting insert therefor
    6.
    发明授权
    Insert boring tool and cutting insert therefor 失效
    插入镗刀和切削刀片

    公开(公告)号：US4844669A

    公开(公告)日：1989-07-04

    申请号：US147871

    申请日：1988-01-25

    申请人： Osamu Tsujimura ,  Tatsuo Arai ,  Takayoshi Saito

    发明人： Osamu Tsujimura ,  Tatsuo Arai ,  Takayoshi Saito

    IPC分类号： B23C5/20 ,  B23B51/00 ,  B23B51/04 ,  B23C5/10

    CPC分类号： B23B51/0493 ,  Y10S408/713 ,  Y10T407/1924 ,  Y10T408/868 ,  Y10T408/87 ,  Y10T408/899 ,  Y10T408/905

    摘要： An insert boring tool includes a tool body and a cutting insert releasably mounted thereon. The insert includes a plate defined by front and rear surfaces and a plurality of side faces and having a plurality of corners where adjacent side faces intersect one another. At least one of the corners is removed to provide a corner face. A first cutting edge is defined by the front surface and one of the side faces adjacent to the corner face, and a straight second cutting edge is defined by the front surface and the corner side face. The first and second cutting edges intersect each other at an obtuse angle, and are indexed in an end cutting position. The front surface has a marginal portion extending along the second cutting edge and inclined in such a manner that a thickness of the plate between the marginal portion and the rear surface is progressively reduced toward the second cutting edge. The axis of the body passes through the second cutting edge so that the first cutting edge and at least a part of the second cutting edge are indexed in an end cutting position.

    摘要翻译： 刀具钻具包括工具主体和可释放地安装在其上的切削刀片。 插入件包括由前表面和后表面限定的板和多个侧面，并且具有多个相邻侧面相交的拐角。 至少角落之一被去除以提供角面。 第一切削刃由前表面和与角面相邻的一个侧面限定，并且直的第二切削刃由前表面和角侧面限定。 第一和第二切割刃以钝角彼此相交，并且在端部切割位置被分度。 前表面具有沿着第二切削刃延伸的边缘部分，并且以这样的方式倾斜，使得边缘部分和后表面之间的板的厚度朝向第二切削刃逐渐减小。 身体的轴线穿过第二切割刃，使得第一切割刃和第二切割刃的至少一部分在端部切割位置被分度。

    Insert cutter
    9.
    发明授权
    Insert cutter 失效
    插入刀具

    公开(公告)号：US4808044A

    公开(公告)日：1989-02-28

    申请号：US43621

    申请日：1987-04-28

    申请人： Osamu Tsujimura ,  Tatsuo Arai

    发明人： Osamu Tsujimura ,  Tatsuo Arai

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

    CPC分类号： B23C5/2269 ,  B23C5/202 ,  Y10T407/1908 ,  Y10T407/1922 ,  Y10T407/1924 ,  Y10T407/195 ,  Y10T407/196 ,  Y10T407/1962

    摘要： An insert cutter includes a cutter body of a generally circular cross-section having an axis of rotation therethrough. The cutter also includes a plurality of cutter inserts releasably mounted on a periphery of the cutter body in circumferentially spaced relation to one another. Each of the cutter inserts has a main cutting edge indexed in its peripheral cutting position. The cutter inserts are disposed so that the indexed main cutting edge of at least one of the cutter inserts is provided with an axial rake angle different from axial rake angles of the indexed main cutting edges of the other cutter inserts.

    摘要翻译： 插入式切割器包括具有通过其旋转的轴线的大致圆形横截面的切割器主体。 切割器还包括多个切削刀片，其可释放地安装在切割器本体的周边上彼此周向间隔开。 每个切割刀片具有沿其周边切割位置分度的主切削刃。 切削刀片被设置成使得至少一个刀具刀片的分度主切削刃设置有与其它刀片刀片的指示的主切削刃的轴向前角不同的轴向前角。

    Indexable cutter insert
    10.
    发明授权
    Indexable cutter insert 失效
    可转位刀片插入

    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

    IPC分类号： B23C5/10 ,  B23C5/22

    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。