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1. 发明公开

EP2301709A1 DRILL HEAD MANUFACTURING METHOD, AND DRILL HEAD 审中-公开
标题翻译：钻头制造方法和钻头
公开(公告)号：EP2301709A1
公开(公告)日：2011-03-30
申请号：EP08876579.7
申请日：2008-12-12
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji
IPC分类号： B23P15/32 , B23B51/00 , B23B51/06
CPC分类号： C23C16/00 , B23B51/0493 , B23B2228/04 , B23B2228/08 , B23B2228/10 , B23B2240/11 , C23C30/005 , Y10T408/5586 , Y10T408/78
摘要： Provided is a drill head manufacturing method in which a CVD coating is applied in manufacturing of a drill head where conventionally only a PVDcoating is applicable, thereby utilizing features of the CVD method effectively, which renders a tool service life longer and enables a drill head more suitable for high-speed cutting to be manufactured. A cutting tip 2 having been CVD coated with a hard material is brazed to a required portion at a distal end side of a head main body 1. An outer diameter portion OD of the brazed tip 2 about a rotation axis G of the head main body 1 is polished. Then, the cutting tip 2 and the head main body are PVD coated with a hard material at a temperature lower than the brazing temperature.
摘要翻译：本发明提供一种钻头制造方法，其中在制造钻头时使用CVD涂层，其中通常仅适用PVD涂层，从而有效地利用了CVD方法的特征，这使得工具使用寿命更长并且使得钻头更多适合于要制造的高速切割。已经用硬质材料CVD涂覆的切削刀片2被硬钎焊到头主体1的远端侧的所需部分。钎焊尖端2的外径部分OD关于头主体的旋转轴线G 1被抛光。然后，在低于钎焊温度的温度下，用硬质材料对切削刀片2和头主体进行PVD涂覆。

2. 发明公开

EP2298478A1 DEEP-HOLE BORING DRILL HEAD 审中-公开
标题翻译：深孔钻头
公开(公告)号：EP2298478A1
公开(公告)日：2011-03-23
申请号：EP08874804.1
申请日：2008-12-12
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji
IPC分类号： B23B51/06
CPC分类号： B23B51/0486 , B23B41/02 , B23B2251/422
摘要： Provided is a drill head for deep-hole drilling which does not generate such a disc that clogs a cutting chip discharge port when a head main body of the drill head penetrates a work material. The drill head is mounted with a central cutting blade tip 6 at the head center portion so as for a blade edge 6a thereof to be inclined downward toward the head center portion, a circumferential cutting blade tip 7 at a circumferential portion so as for a blade edge 7a thereof to be inclined upward toward the head center portion, and an intermediate cutting blade tip 8 therebetween so as for a blade edge 8a thereof to be inclined upward toward the head center portion, while the cutting blade tips face a cutting chip discharge port 4 or 5. The drill head includes a head main body 2 having an interior hollow portion 3 serving as a cutting chip discharge passage which communicates with the discharge ports 4 and 5. A disc breaker 12 composed of an inclined surface inclined downward toward the head center portion is formed at a head center side end portion of a flank 8b of the intermediate cutting blade tip 8 inclined upward toward the head center portion.
摘要翻译：本发明提供一种深孔加工用钻头，其在钻头的头主体贯穿工件材料时不产生堵塞切屑排出口的盘。钻头在其头部中心部分安装有中心切削刀片刀片6，以使其刀片边缘6a向头部中心部分向下倾斜，圆周部分处的圆周切割刀片刀片7用于刀片其刃尖7a朝向头部中心部分向上倾斜，并且在它们之间有一个中间切割刀片尖端8，以使其刀片边缘8a向上朝向头部中心部分倾斜，而切割刀片尖端面向切割碎片排出口该钻头包括头部主体2，该头部主体2具有内部空心部分3，该内部空心部分3用作与排放口4和5连通的切屑排放通道。盘形破碎器12由倾斜表面构成，该倾斜表面朝向头部向下倾斜中间部分形成在朝向头部中心部分向上倾斜的中间切割刀片末端8的侧部8b的头部中心侧端部处。

3. 发明公开

EP2090392A1 DEEP HOLE CUTTING APPARATUS 审中-公开
标题翻译：深孔切削装置
公开(公告)号：EP2090392A1
公开(公告)日：2009-08-19
申请号：EP08738802.1
申请日：2008-03-25
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji , SAKAI, Makoto
IPC分类号： B23B51/00 , B23B51/06
CPC分类号： B23B51/0493 , B23B2240/08 , B23B2251/56 , Y10T408/5586
摘要： Provided is a deep hole cutting apparatus having a guide pad brazed to a cutting head section. With the deep hole cutting apparatus, high machining accuracy can be obtained in a stable cutting status and the service life of the guide pad is lengthened. A guide pad (5) brazed to a cutting head section (10a) is diagonally arranged so that the leading end side of the tool is closer to the front side in a tool rotating direction (y) compared with the rear end side of the tool.
摘要翻译：本发明提供一种具有钎焊在切削头部上的导向块的深孔切削装置。采用深孔切削装置，可以在稳定的切削状态下获得较高的加工精度，延长导向块的使用寿命。钎焊在切削头部（10a）上的导向块（5）倾斜配置，使得与工具的后端侧相比，工具的前端侧在工具旋转方向（y）上更靠近前侧。

4. 发明公开

EP2272611A1 DEEP-HOLE BORING THROWAWAY TIP, AND DEEP-HOLE BORING DRILL HEAD 有权
标题翻译： TIEFLOCHBOHRERKOPF
公开(公告)号：EP2272611A1
公开(公告)日：2011-01-12
申请号：EP08874049.3
申请日：2008-12-12
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji
IPC分类号： B23B51/00 , B23B51/06
CPC分类号： B23B51/0493 , B23B27/145 , B23B41/02 , B23B2200/0423 , B23B2200/28 , B23B2251/46 , Y10T407/23 , Y10T408/892 , Y10T408/905 , Y10T408/909
摘要： Provided is a three-fold symmetric throwaway tip for deep-hole drilling applicable to both a whole cutting type and a non-cutting core break-off type as a center side blade body for a drill head. The throwaway tip for deep-hole drilling is of a thick plate shape having a three-fold symmetry that a sectional shape when divided into three sections P1 to P3 at a central angle of 120 degrees is equalized. The throwaway tip has a blade point 1 facing a drilling direction in a mounting state on a drill head D1, D2 and having an inner cutting blade 11 shorter in blade length and an outer cutting blade 12 longer in blade length forming an angular shape corresponding to a first section P1, and the outer cutting blade 12 is composed of two consecutive cutting blade portions of a peak-side outer cutting blade portion 12a having a smaller outer cutting blade angle β1 and a foot-side outer cutting blade portion 12b having a larger outer cutting blade angle β2.
摘要翻译：本发明提供一种用于深孔钻孔的三重对称的一次性刀片，其适用于作为用于钻头的中心侧刀片体的整个切割型和非切割型芯断裂型。用于深孔钻削的一次性刀片具有三重对称的厚板形状，当被分成以120度的中心角度的三个部分P1至P3相等时的截面形状。一次性刀片具有在钻头D1，D2处的安装状态下面对钻孔方向的刀片点1，并且具有刀片长度更短的内切刀11和刀片长度较长的外刀片12，形成对应于第一部分P1和外部切割刀片12由具有较小外部切割刀片角度θ1的峰侧外侧切割刀片部分12a和具有较大的外侧切割刀片角度的脚部侧切割刀片部分12b的两个连续的切割刀片部分组成外切刀角度2。

5. 发明公开

EP2006043A1 DEEP HOLE DRILLING MACHINE 审中-公开
标题翻译： TIEFLOCHBOHRMASCHINE
公开(公告)号：EP2006043A1
公开(公告)日：2008-12-24
申请号：EP07737762.0
申请日：2007-03-05
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji , HANABUSA, Nobuyuki
IPC分类号： B23B51/06
CPC分类号： B23B41/02 , B23B51/0486 , B23B51/06 , B23B2250/12 , B23B2251/02 , B23B2251/422 , B23B2251/56 , B23B2270/30 , E21B10/602 , Y10T408/455 , Y10T408/896
摘要： A deep hole drilling machine employing an external system for supplying coolant to a drilling portion in which high drilling efficiency can be achieved even if the drilling hole is deep by enhancing the discharge performance of chips from the drilling portion without setting the supply pressure of coolant at a high level. A tubular boring head (2) having discharging openings (4a, 4b) communicating with a chip discharge passage (10) on the edge (3a-3c) side is attached to the distal end of a hollow boring bar (1) having interior serving as the chip discharge passage (10), bypass holes (5,...) are provided at a plurality of circumferential positions in the circumferential wall (21) of the boring head (2) to penetrate obliquely such that the outer opening (5a) is located closer to the distal end side of the head than the inner opening (5b), and a part of coolant supplied externally to the drilling portion side flows through the bypass holes (5,...) into the boring head (2), thus generating attraction force to the discharge side and accelerating discharge of the chips (S).
摘要翻译：一种深孔钻机，其采用外部系统，用于向钻井部分供应冷却剂，其中即使钻孔深度通过提高钻井部分的切屑的排放性能而不能将冷却剂的供应压力设定在较高的钻井部分，高水平具有与边缘（3a-3c）侧的切屑排出通道（10）连通的排出口（4a，4b）的管状镗头（2）安装在具有内部服务的中空镗杆（1）的远端作为切屑排出通路（10），在镗头（2）的周壁（21）的多个周向位置设置有旁通孔（5 ...），以使其开口倾斜，使得外侧开口）位于比内部开口（5b）更靠近头部远端侧的位置，并且供给到钻孔部分侧外部的冷却剂的一部分流过旁通孔（5，...）进入钻头（2）），从而对放电侧产生吸引力并促进芯片（S）的放电。

6. 发明授权

EP2272611B1 DEEP-HOLE BORING DRILL HEAD 有权
标题翻译： TIEFLOCHBOHRERKOPF
公开(公告)号：EP2272611B1
公开(公告)日：2013-01-09
申请号：EP08874049.3
申请日：2008-12-12
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji
IPC分类号： B23B27/14 , B23B41/02 , B23B51/04
CPC分类号： B23B51/0493 , B23B27/145 , B23B41/02 , B23B2200/0423 , B23B2200/28 , B23B2251/46 , Y10T407/23 , Y10T408/892 , Y10T408/905 , Y10T408/909

7. 发明公开

EP2236231A1 GUN DRILL 审中-公开
标题翻译：枪钻
公开(公告)号：EP2236231A1
公开(公告)日：2010-10-06
申请号：EP08873650.9
申请日：2008-11-18
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji
IPC分类号： B23B51/06 , B23B51/00
CPC分类号： B23B51/0486 , B23B2251/424 , B23B2251/46 , Y10T408/03 , Y10T408/455 , Y10T408/558 , Y10T408/895
摘要： A gun drill having a cutting blade of a single-edged blade in which high cutting efficiency is attained, exact positional accuracy is not required at the time of brazing a cutting blade tip as the cutting blade, a cutting head can be manufactured easily and the cutting blade itself is also easily processed in terms of form is provided. A cutting blade 5 is configured such that an inner end 51a of a blade edge 51 is spaced apart from a head shaft center O to form a non-cutting zone Z in the vicinity of the shaft center O, a cutting blade side face 52 at the inner end 51a side constitutes an inclined surface inclined from the inner end 51a to the head shaft center O side, and a non-cutting core C of a work material W generated in the non-cutting zone Z is broken off by press-contact of the inclined cutting blade side face 52 during cutting processing.
摘要翻译：具有能够获得高切割效率的单刃刀片的切割刀片的枪钻在作为切割刀片的钎焊切割刀片尖端时不需要精确的位置精度，可以容易地制造切割头，提供切割刀片本身也容易加工形式。切削刀5构成为刀尖51的内端51a与头轴心O分离而在轴心O的附近形成非切削区域Z，切削刃侧面52在内端部51a侧构成从内端部51a向头部轴心O侧倾斜的倾斜面，通过压接将在非切断区域Z产生的被加工材料W的未切削芯部C折断切削加工时的倾斜的切削刀侧面52的位置。

8. 发明公开

EP2090390A1 DEEP HOLE CUTTING APPARATUS 审中-公开
标题翻译： VORRICHTUNG ZUM SCHNEIDEN TIEFERLÖCHER
公开(公告)号：EP2090390A1
公开(公告)日：2009-08-19
申请号：EP08738800.5
申请日：2008-03-25
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji , SAKAI, Makoto
IPC分类号： B23B51/00 , B23B51/06
CPC分类号： B23B51/0493 , B23B2251/422 , B23B2251/56 , B23B2270/26 , Y10T408/5586
摘要： Provided is a deep hole cutting apparatus having a chip-replaceable guide pad on a cutting head section. With the deep hole cutting apparatus, finish qualities of a cut hole to be formed can be improved and the service life of the guide pad is lengthened. A guide pad (3A) which is slidably brought into contact with the inner circumference of a cutting hole (H) is removably attached with an attaching screw (17b) toapadattaching recessed section (18) which is formed on the outer circumference of a cutting head section (11). The top portion (P1) of the guide pad (3A) protrudes outward in the diameter direction from a cutting circumference (S) of a cutting blade (outer circumference side cutting blade (2A)).
摘要翻译：本发明提供一种深孔切割装置，其在切割头部分具有可切屑的导向垫。利用深孔切割装置，可以提高要形成的切割孔的精加工质量，并且延长导向板的使用寿命。可滑动地与切割孔（H）的内周接触的引导垫（3A）可拆卸地安装有安装螺钉（17b），该安装螺钉（17b）形成在切割头的外圆周上，第（11）节。引导垫（3A）的顶部（P1）从切割刀片（外周侧切割刀片（2A））的切割圆周（S）沿直径方向向外突出。

9. 发明公开

EP2113326A1 GUN DRILL 审中-公开
标题翻译：枪钻
公开(公告)号：EP2113326A1
公开(公告)日：2009-11-04
申请号：EP08740627.8
申请日：2008-04-18
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji , HANABUSA, Nobuyuki
IPC分类号： B23B51/06
CPC分类号： B23B51/0493 , B23B2251/02 , B23B2251/424 , Y10T408/455 , Y10T408/89
摘要： A gun drill in which coolant delivered to a cutting part can be discharged intensively to a chip discharge groove along with the chips, damage on the inner circumference of a drilled hole or fall of machining precision due to clogging with chips can be prevented, and cutting efficiency is enhanced by reducing rotary load and long lifetime can be attained. Coolant supply paths (10, 20) are provided in a tool shank (1) and a cutting head (2), one chip discharge groove (3) is provided in the outer circumferential surface from the proximal side of the tool shank (1) to the distal end of the cutting head (2), discharge ports (22a, 22b) communicating with coolant supply holes (21a, 21b) and a chip discharge groove (3) are provided in the distal end face (2c) of the cutting head (2), and annular protrusions (4a, ... ) are formed in the outer circumferential surface of the cutting head (2) continuously over the entire circumference while bridging above the chip discharge groove (3).
摘要翻译：能够防止输送到切削部的冷却液与切屑一起集中排出到切屑排出槽，防止钻孔内周部的损伤或切屑堵塞引起的加工精度降低的枪钻，通过减少旋转负载来提高效率，并且可以实现长寿命。在工具柄（1）和切削头（2）中设置有冷却剂供给通路（10,20），在工具柄（1）的基端侧的外周面设置有一个切屑排出槽（3）在切削头2的前端面2c上设置有与冷却剂供给孔21a，21b连通的排出口22a，22b和切屑排出槽3，头部（2）和环形突起（4a，...）在切屑头（2）的外圆周表面上连续地在整个圆周上形成，同时桥接在切屑排放槽（3）的上方。

10. 发明公开

EP2090391A1 DEEP HOLE CUTTING APPARATUS 审中-公开
标题翻译：深孔切削装置
公开(公告)号：EP2090391A1
公开(公告)日：2009-08-19
申请号：EP08738801.3
申请日：2008-03-25
申请人： UNITAC, Incorporated
发明人： NOMURA, Takuji , SAKAI, Makoto
IPC分类号： B23B51/00 , B23B51/06
CPC分类号： B23B51/0493 , B23B2251/56 , Y10T408/5586 , Y10T408/892
摘要： Provided is a deep hole cutting apparatus having a chip-replaceable guide pad on a cutting head section. With the deep hole cutting apparatus, high machining accuracy can be obtained in a stable cutting status and the service life of the guide pad is lengthened. A guide pad (7) is formed on a circular surface (71a) whose outer surface forms a top ridge section (7a) along the center portion in the width direction, and the guide pad is diagonally attached to a cutting head section (10a) so that the leading end side of the tool is closer to the front side in a tool rotating direction (y) compared with the rear end side of the tool.
摘要翻译：本发明提供一种在切割头部具有切屑可更换导向垫的深孔切削装置。采用深孔切削装置，可以在稳定的切削状态下获得较高的加工精度，延长导向块的使用寿命。导向块（7）形成在其外表面形成沿宽度方向的中心部分的顶部脊部分（7a）的圆形表面（71a）上，并且导向块对角地连接到切割头部分（10a）从而与工具的后端侧相比，工具的前端侧在工具旋转方向（y）上更靠近前侧。

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