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11. 发明公开

US20230150039A1 DRILL 审中-公开
公开(公告)号：US20230150039A1
公开(公告)日：2023-05-18
申请号：US17617593
申请日：2021-01-27
申请人： Sumitomo Electric Hardmetal Corp.
发明人： Youichi TAKAHASHI
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2251/14 , B23B2251/082 , B23B2251/127
摘要： A ridgeline between the thinning face and the flank face includes a first thinning portion contiguous to the outer cutting edge, and a second thinning portion contiguous to the first thinning portion. When viewed in a direction along the central axis, the first thinning portion is linear and the second thinning portion is curved. When viewed in the direction along the central axis, the first thinning portion, and a boundary between the first thinning portion and the second thinning portion are located rearward in a rotational direction relative to a first straight line, and are located forward in the rotational direction relative to a second straight line, the first straight line being a straight line passing through the central axis and parallel to the first thinning portion, and the second straight line being a straight line perpendicular to the first straight line.

12. 发明授权

US11642728B2 Twist drill and an exchangeable head for a twist drill 有权
公开(公告)号：US11642728B2
公开(公告)日：2023-05-09
申请号：US16473488
申请日：2017-11-27
申请人： SECO TOOLS AB
发明人： Bjorn Sterling
IPC分类号： B23B51/02 , B23B51/06
CPC分类号： B23B51/02 , B23B51/06 , B23B2251/043 , B23B2251/082 , B23B2251/14 , B23B2251/18 , B23B2251/50
摘要： A twist drill and an exchangeable head for a twist drill, the twist drill extending along a central axis of rotation and having a front end formed as a drill point with two cutting edges and at least two clearance surfaces. Two helical chip flutes conduct chips away from the cutting edges. Each cutting edge extends in a transition between the clearance surfaces. One of the chip flutes extends from an inner position adjacent to the central axis to a peripheral envelope surface and has a main portion closest to the peripheral envelope surface. Each chip flute is delimited by a side surface including a main rake face, which extends rearward from the main portion of the cutting edge. The cutting edges are contained in an imaginary conical surface, such that the twist drill is operable to generate a bottom profile having the shape of an inverted cone.

13. 发明授权

US09981322B2 Drill and drilling method for workpiece 有权
公开(公告)号：US09981322B2
公开(公告)日：2018-05-29
申请号：US14875870
申请日：2015-10-06
申请人： FUJI JUKOGYO KABUSHIKI KAISHA
发明人： Tatsuo Nakahata , Manabu Saito , Masanori Hosoi , Hideharu Takahashi
IPC分类号： B23B51/02 , B23B35/00
CPC分类号： B23B51/02 , B23B35/00 , B23B35/005 , B23B2222/56 , B23B2226/275 , B23B2226/61 , B23B2228/36 , B23B2251/04 , B23B2251/082 , B23B2251/14 , B23B2251/18 , Y10T408/03 , Y10T408/9097
摘要： A drill includes a cutting edge. The cutting edge has a point angle which is continuously decreased from a center-position point angle A (herein, 0°

14. 发明申请

US20160082525A1 MULTI-EDGE DRILL BIT 审中-公开
标题翻译：多边钻头
公开(公告)号：US20160082525A1
公开(公告)日：2016-03-24
申请号：US14604558
申请日：2015-01-23
申请人： Sainty International, LLC
发明人： Haining Gao
IPC分类号： B23B51/04
CPC分类号： B23B51/02 , B23B2251/082 , B23B2251/085 , B23B2251/14 , B23B2251/18 , B23B2251/20
摘要： A multi-edge drill bit includes a drill body and a drill tip at one end of the drill body. The drill tip includes two main cutting edges extending to outside and symmetric about a center of the drill body and two crescent grooves symmetric about the center. Each of the crescent grooves intersects with corresponding main cutting edge respectively to divide the main cutting edge into an outer edge, an arc edge, and an inner edge. A transverse edge is formed between the two inner edges and has its middle point forming the core bit. The outer edges intersect with said arc edges to form two symmetric side bits. A ratio of the vertical distance between the core bit and the side bit to drill diameter is 0.02 to 0.03 and a ratio of the transverse edge length to drill diameter is 0.05 to 0.08. The drill bit as described herein provides a stable centering effect during drilling and facilitates continuous stable drilling in round pipe and thin plate applications.
摘要翻译：多边钻头在钻体的一端包括钻体和钻头。钻头包括两个延伸到外部并且关于钻体的中心对称的两个主切削刃，以及关于中心对称的两个新月形凹槽。每个新月形凹槽分别与相应的主切削刃相交，以将主切削刃分成外边缘，弧边缘和内边缘。在两个内边缘之间形成横向边缘，并且其中点形成芯钻头。外边缘与所述弧形边缘相交以形成两个对称的边位。芯钻头和侧钻头与钻头直径之间的垂直距离的比率为0.02至0.03，横向边缘长度与钻头直径的比率为0.05至0.08。如本文所述的钻头在钻孔期间提供稳定的定中心作用，并且有助于圆管和薄板应用中的连续稳定钻孔。

15. 发明申请

US20160023281A1 DRILL AND DRILLING METHOD FOR WORKPIECE 有权
标题翻译：钻孔和钻孔方法
公开(公告)号：US20160023281A1
公开(公告)日：2016-01-28
申请号：US14875870
申请日：2015-10-06
申请人： FUJI JUKOGYO KABUSHIKI KAISHA
发明人： Tatsuo NAKAHATA , Manabu SAITO , Masanori HOSOI , Hideharu TAKAHASHI
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B35/00 , B23B35/005 , B23B2222/56 , B23B2226/275 , B23B2226/61 , B23B2228/36 , B23B2251/04 , B23B2251/082 , B23B2251/14 , B23B2251/18 , Y10T408/03 , Y10T408/9097
摘要： A drill includes a cutting edge. The cutting edge has a point angle which is continuously decreased from a center-position point angle A (herein, 0°
摘要翻译：钻头包括切削刃。切削刃具有从中心位置的中心位置角度A（这里为0°

16. 发明授权

US09168593B2 Drill 有权
标题翻译：钻头
公开(公告)号：US09168593B2
公开(公告)日：2015-10-27
申请号：US12654610
申请日：2009-12-24
申请人： Manabu Saito , Tatsuo Nakahata , Hideharu Takahashi
发明人： Manabu Saito , Tatsuo Nakahata , Hideharu Takahashi
IPC分类号： B23B51/02 , B23B51/00
CPC分类号： B23B51/02 , B23B51/00 , B23B2226/27 , B23B2226/275 , B23B2251/04 , B23B2251/082 , B23B2251/14 , B23B2265/16 , B23C2220/56 , Y10T408/9097
摘要： A drill includes a cutting edge having a ridgeline. The ridgeline has a part of an ellipse and a straight line. It is assumed that the coordinates of a separation point of an ellipse portion from a straight line portion are (x0, y0). The straight line is a tangent to the ellipse at the separation point. It is assumed that a1 is an area from a tip end of the drill to x0, a2 is an area from x0 to the origin of the ellipse, and a3 is a negative area, along the x-axis. The ridgeline of the cutting edge is formed straight along the tangent in the area a1, and is formed along the ellipse in the area a2. A margin is formed in the area a3 continuously from a relief face of the cutting edge.
摘要翻译：钻头包括具有棱线的切割刃。棱线具有椭圆和直线的一部分。假设椭圆部分与直线部分的分离点的坐标为（x0，y0）。直线与分离点处的椭圆相切。假设a1是从钻头的尖端到x0的区域，a2是从x0到椭圆原点的区域，a3是沿着x轴的负面区域。切割刃的棱线沿着区域a1的切线形成为直线，并且沿着区域a2的椭圆形成。在区域a3中从切削刃的浮雕面连续地形成边缘。

17. 发明申请

US20150217383A1 SINGLE-LIP DRILL 有权
标题翻译：单钻钻石
公开(公告)号：US20150217383A1
公开(公告)日：2015-08-06
申请号：US14423167
申请日：2013-08-20
申请人： botek Praezisionsbohrtechnik GmbH
发明人： Juergen Wenzelburger , Juergen Deeg
IPC分类号： B23B51/04
CPC分类号： B23B51/04 , B23B2222/28 , B23B2228/10 , B23B2251/04 , B23B2251/082 , B23B2251/14 , B23B2251/201 , B23B2251/424 , Y10T408/89
摘要： A single-lip drill including at least one cutting edge on a drill head has a face which is concave along at least 75 percent of the width thereof and substantially along the entire length thereof, all the way to, and inclusive of, the cutting edge.
摘要翻译：包括在钻头上的至少一个切割边缘的单唇钻头具有沿其宽度的至少75％并且基本上沿着其整个长度凹入的表面，一直到并包括切削刃。

18. 发明申请

US20150104265A1 3-BLADE DRILL 有权
标题翻译：三刃钻
公开(公告)号：US20150104265A1
公开(公告)日：2015-04-16
申请号：US14395877
申请日：2012-05-30
申请人： Kazutoyo Itoh , Kazuteru Takai
发明人： Kazutoyo Itoh , Kazuteru Takai
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2251/082 , B23B2251/14 , B23B2251/202 , Y10T408/9097
摘要： A three-flute drill includes: three chip discharge flutes; and three cutting edges each having concavely-curved and convexly-curved cutting edge portions, an axially perpendicular cross-sectional view orthogonal to an axial center having first convex and concave curves respectively corresponding to the convexly-curved and concavely-curved cutting edge portions intersecting each other, in the axially perpendicular cross-sectional view, a concave amount of the first concave curve being within a range of 0.01 D to 0.05 D in terms of a drill cutting diameter relative to a reference line connecting an outer circumferential point, at which a drill outer circumferential portion intersects with the first convex curve, and the axial center, and in the axially perpendicular cross-sectional view, a rake chamfer width being a distance from an intersection between a straight line through the intersection and orthogonal to the reference line and the reference line, to the outer circumferential point, and being within 0.005 D to 0.06 D.
摘要翻译：三槽钻头包括：三个排屑槽; 和三个切削刃，每个切削刃具有凹曲曲面和凸曲面的切削刃部分，与轴向正交的轴向垂直横截面视图，该轴向中心具有分别对应于凸曲面和凹曲曲线的切削刃部分的第一凸曲线和凹曲线，在轴向垂直截面图中，第一凹曲线的凹入量相对于连接外圆周点的参考线以钻头切割直径为0.01D至0.05D的范围内，钻头外圆周部分与第一凸曲线相交，并且轴向中心，并且在轴向垂直截面图中，前角倒角宽度是与通过交叉点的直线和与基准线正交的交点的距离和参考线到外圆周点，在0.005 D到0.06之间。

19. 发明授权

US08814483B2 Twist drill 有权
标题翻译：麻花钻
公开(公告)号：US08814483B2
公开(公告)日：2014-08-26
申请号：US12897403
申请日：2010-10-04
申请人： David Ben Harouche
发明人： David Ben Harouche
IPC分类号： B23B51/00 , B23B51/02
CPC分类号： B23B51/02 , B23B2251/082 , B23B2251/14 , B23B2251/18 , B23B2251/202 , Y10T408/905 , Y10T408/9095 , Y10T408/9097
摘要： A twist drill includes a cutting portion and a drill body. The cutting portion has a chisel edge, a segment relief surface, a chamfer relief surface and at least two flutes extending longitudinally to the drill body. Each flute has a rake surface and a gash extending away from the chisel edge. The cutting portion further has at least two cutting segments, each cutting segment having a first curved cutting edge, a second curved cutting edge and a chamfer cutting edge.
摘要翻译：麻花钻包括切割部分和钻体。切割部分具有凿子边缘，段形浮雕表面，倒角浮雕表面和至少两个纵向延伸到钻头本体的凹槽。每个笛子都有一个耙子表面和一个远离凿子边缘的沟槽。切割部分还具有至少两个切割段，每个切割段具有第一弯曲切割边缘，第二弯曲切割边缘和倒角切割边缘。

20. 发明申请

US20120093600A1 CUTTING TIP AND ROTARY CUTTING TOOL EMPLOYING SAME 有权
标题翻译：切割尖和旋转切割工具使用
公开(公告)号：US20120093600A1
公开(公告)日：2012-04-19
申请号：US12905427
申请日：2010-10-15
申请人： KARTHIK SAMPATH , VLADIMIR VOLOKH
发明人： KARTHIK SAMPATH , VLADIMIR VOLOKH
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2251/04 , B23B2251/082 , B23B2251/085 , B23B2251/14 , B23B2251/18 , Y10T408/89 , Y10T408/906 , Y10T408/9065
摘要： A rotary cutting tool for performing hole-cutting operations on a workpiece includes a first end structured to engage and perform cutting operations on the workpiece. The first end is defined by a cutting profile. The cutting tool also includes an opposite second end structured to be mounted in a machine tool, a central longitudinal axis extending between the first and second ends, and a generally cylindrical body disposed about the central longitudinal axis between the first end and the opposite second end. The cutting profile comprises a first portion adjacent the central longitudinal axis and disposed generally at a first angle relative to the central longitudinal axis; a second portion adjacent the first portion and disposed generally at a second angle relative to the central longitudinal axis; and a third portion adjacent the second portion and disposed generally at a third angle relative to the central longitudinal axis. The second angle is greater than both the first and third angles.
摘要翻译：用于在工件上进行切孔操作的旋转切削工具包括构造成在工件上接合和执行切削操作的第一端。第一端由切割轮廓定义。该切割工具还包括构造成安装在机床中的相对的第二端，在第一和第二端之间延伸的中心纵向轴线，以及围绕第一端和相对的第二端之间的中心纵向轴线布置的大致圆柱形的主体。切割轮廓包括与中心纵向轴线相邻的第一部分，并且相对于中心纵向轴线大致以第一角度设置; 邻近第一部分并相对于中心纵向轴线大致以第二角度设置的第二部分; 以及与第二部分相邻并且相对于中心纵向轴线大致以第三角度设置的第三部分。第二角度大于第一和第三角度。

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