WO2016138810A1 - 四合一螺丝孔沉头刀 - Google Patents

四合一螺丝孔沉头刀 Download PDF

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Publication number
WO2016138810A1
WO2016138810A1 PCT/CN2016/073103 CN2016073103W WO2016138810A1 WO 2016138810 A1 WO2016138810 A1 WO 2016138810A1 CN 2016073103 W CN2016073103 W CN 2016073103W WO 2016138810 A1 WO2016138810 A1 WO 2016138810A1
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WIPO (PCT)
Prior art keywords
blade
faces
shank
hole
opposite
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PCT/CN2016/073103
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English (en)
French (fr)
Inventor
陈立诚
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良佑五金工具(深圳)有限公司
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Publication of WO2016138810A1 publication Critical patent/WO2016138810A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/08Drills combined with tool parts or tools for performing additional working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/10Bits for countersinking

Definitions

  • the present invention relates to a machining tool, and more particularly to a tool for forming a hole in a workpiece.
  • Drilling is a common process in machining. It is usually determined by the workpiece and the assembly requirements for the screw connection. The countersinking is performed on the workpiece to provide the head of the screw to be buried in the counterbore. Instead of protruding from the surface of the workpiece, in order to remove the burrs generated by the machining, and to facilitate the assembly of the parts, the worker will further chamfer at the edge of the hole after the hole is processed.
  • FIG. 11 For the countersink processing flow of the prior art, please refer to FIG. 11 to FIG. 15.
  • a center drill bit 60 At the workpiece 50, a cone 51 is machined to facilitate positioning and guiding of the drilling process, and then a drill bit 70 is placed at the center of the cone 51.
  • a hole 52 is drilled.
  • the worker further uses a countersunk cutter 80 at the taper 51, as shown in FIG. 13, further cutting to form a counterbore 53 which is connected to the hole 52 to form a stepped shape.
  • the first chamfering cutter 91 is chamfered at the edge of the counterbore 53 connected to the hole 52, as shown in FIG. 14, to form a first chamfer 531, and finally, a second chamfering cutter 92 is used.
  • the edge of the counterbore 53 is chamfered at the edge of the opening, as shown in Fig. 15, to form a second chamfer 532.
  • the object of the present invention is to improve the prior art, and it is necessary to form a countersunk hole and a chamfering process in a plurality of processes, thereby forming a defect that is time consuming and low in processing and manufacturing efficiency, and the processing procedure is reduced by the implementation of the technical means of the present invention. Reduce the number of cutting tools required, thus shortening the machining time to improve the manufacturing efficiency.
  • the technical means adopted by the present invention is to design a four-in-one screw hole countersunk cutter, wherein the four-in-one screw hole countersunk cutter has a blade and a handle, and the blade is connected to The handle
  • the blade is a piece, and the blade has a drilled portion, two slit portions, two cutting edges, two chamfer portions and at least one chip flute, and the opposite sides of the blade are side edges.
  • the opposite surfaces of the blade are sides, and the side edges are connected to the side faces;
  • the crater portion is obtusely protruded from the center of one end surface of the blade, and the two grooving portions are formed on the end surface of the blade and the two grooving portions are respectively located at two sides of the boring portion;
  • the two cutting edge portions are respectively formed on opposite side edges of the blade, and one end portion of the cutting edge portion is connected to one end portion of the cutting groove portion;
  • the two chamfered portions are respectively formed on opposite side edges of the blade, the one end portion of the chamfered portion is connected to the other end portion of the cutting edge portion, and the chamfered portion forms an obtuse angle with the cutting edge portion;
  • the chip flute is recessed on one side of the blade, and the flute is connected to the boring portion, the grooving portion and the cutting edge portion.
  • the four-in-one screw hole countersunk cutter wherein the blade has two chip flutes, wherein one chip flute is formed at a connecting side edge of one side of the blade, and another chip flute is formed on the blade The other side of the connection is at the other side edge;
  • the boring portion has two first blade faces, and the two first blade faces are symmetrically formed at both sides of the center of the end surface of the blade, and wherein a first blade face is inclined with respect to one side of the blade, and the other a blade face is inclined with respect to the other side of the blade;
  • the two slit portions each have a second blade surface, wherein a second blade surface is inclined with respect to one side of the blade, and another second blade surface is inclined with respect to the other side of the blade, and the two second blade faces are respectively Connecting the adjacent first blade face;
  • the two cutting edge portions each have a third blade surface, wherein a third blade surface is inclined with respect to one side of the blade, and another third blade surface is inclined with respect to the other side of the blade, and the two third blade faces are respectively Connecting the adjacent second face surface;
  • the two chamfered portions each have a fourth blade face, wherein a fourth blade face is inclined with respect to one side of the blade, and another fourth blade face is inclined with respect to the other side of the blade, and the two fourth blade faces are respectively Connecting the adjacent third facet.
  • the four-in-one screw hole countersunk cutter wherein the shank is a rod body, and one end of the shank forms a mounting portion;
  • the blade has a mounting end that is coupled to the mounting portion of the shank.
  • the four-in-one screw hole countersunk cutter wherein the shank further has a connecting member, and the mounting portion is convexly formed at one end of the shank;
  • the mounting portion is two spaced apart holding pieces, and a center of the two holding pieces forms a receiving groove, and the two holding pieces are respectively formed to form a connecting hole, and the connecting holes on the two holding pieces correspond to each other, and one of the holding pieces
  • the inner edge of the connecting hole of the sheet forms an internal thread
  • the blade has a fixing hole, and the blade is disposed in the receiving groove formed by the two holding pieces, the fixing hole corresponding to the connecting hole of the clamping piece; the connecting member penetrates the holding piece and the fixing hole, and the connecting piece thread Connected to a connecting hole with internal threads.
  • the four-in-one screw hole countersunk cutter wherein the shank further has an abutting portion, and the abutting portion has a wedge-shaped recess formed in the receiving groove formed by the two holding pieces;
  • the mounting end is formed in a wedge-shaped protrusion formed at one end of the blade, and the mounting end is correspondingly abutted against the abutting portion of the shank.
  • the four-in-one screw hole countersunk cutter wherein the shank further has an abutting portion, and the abutting portion has a wedge-shaped protrusion formed on the receiving groove formed by the two holding pieces;
  • the mounting end is formed in a wedge-shaped recess formed at one end of the blade, and the mounting end is abutted against the abutting portion of the shank.
  • An advantage of the present invention is that a crater portion of the blade forms a taper in a workpiece, and the grooving portion and the cutting edge portion of the blade are cut into a groove in the workpiece, and the chamfer portion is processed. a first chamfer of the groove, and then a drill bit drills a hole in the center of the cone to form a counterbore and a second chamfer, so that the countersunk hole of the workpiece and the chamfering process The process is reduced, reducing the number of cutting tools required to reduce machining time and improve manufacturing efficiency.
  • Figure 1 is a perspective view of the present invention.
  • FIG. 2 is a separation diagram of the present invention.
  • Figure 3 is a front elevational view of the blade of the present invention.
  • Figure 4 is a bottom plan view of Figure 3 of the present invention.
  • Figure 5 is a side elevational view of Figure 3 of the present invention.
  • Figure 6 is a front elevational view of the shank of the present invention.
  • Figure 7 is a partial cross-sectional view of the present invention.
  • Figure 8 is a diagram of another embodiment of the installation of the present invention.
  • Figure 9 is a schematic view of a machined groove of the present invention.
  • Figure 10 is a schematic view of a borehole of the present invention.
  • Figure 11 is a schematic view of a prior art drill center hole.
  • Figure 12 is a schematic view of a prior art borehole.
  • Figure 13 is a schematic view of a prior art processing counterbore.
  • Figure 14 is a schematic view showing the first chamfering of the prior art.
  • Figure 15 is a schematic view showing the second chamfer of the prior art.
  • 311 taper 3111 second chamfer
  • the four-in-one screw hole countersunk cutter of the present invention has a blade 10 and a shank 20, and the blade 10 is mounted at one end of the shank 20.
  • the blade 10 is a piece having a cutting end and a mounting end 17, and the cutting end and the mounting end 17 are respectively formed at opposite ends of the blade 10; Opposite sides of the blade 10 are side edges 101, the opposite sides of which are sides 102 to which the side edges 101 are attached.
  • the cutting end has a drill hole portion 11, two slit portions 12, two cutting edge portions 13, two chamfer portions 14, two chip flutes 15, and a fixing hole 16.
  • the boring portion 11 protrudes at the center of one end surface of the blade 10 in an obtuse angle, and the two grooving portions 12 are formed on the end faces of the blade 10 and are respectively located at two sides of the boring portion 11, the boring portion
  • the first blade surface 111 is symmetrically complementary to the end surface of the blade 10, and the first blade surface 111 is inclined relative to the side surface 102.
  • the two first blade faces are formed.
  • 111 is symmetrically formed at both sides of the center of the end face of the blade 10, and wherein a first blade face 111 is inclined with respect to one side face 102 of the blade 10, and the other first blade face 111 is opposite to the other side of the blade 10.
  • the slanting portion 12 has a second blade surface 121.
  • the second blade surface 121 of the two grooving portions 12 is complementary to the end surface of the blade 10, and the second blade surface 121 is inclined with respect to the side surface 102. And the second blade surface 121 is connected to the first blade surface 111. Specifically, one of the second blade faces 121 is inclined with respect to one of the side faces 102, and the other second blade face 121 is inclined with respect to the other side face 102.
  • the two cutting edge portions 13 are respectively formed on the opposite side edges 101 of the blade 10, and one end portion of the cutting edge portion 13 is connected to one end portion of the slit portion 12, the cutting edge
  • the portion 13 has a third blade surface 131, and the third blade surface 131 of the two cutting edge portions 13 are complementary formed on the side edges 101 of the blade 10, and the third blade surface 131 is inclined with respect to the side surface 102, and the The third blade surface 131 is coupled to the second blade surface 121.
  • one of the third blade faces 131 is inclined with respect to one of the side faces 102 of the blade 10, and the other third blade face 131 is opposite to the other side of the blade 10. 102 tilt.
  • the two chamfered portions 14 are respectively formed on opposite side edges 101 of the blade 10, and one end portion of the chamfered portion 14 is connected to the other end portion of the cutting edge portion 13, and the chamfered portion 14 and the cutting edge
  • the portion 13 forms an obtuse angle
  • the chamfered portion 14 has a fourth blade surface 141
  • the fourth blade faces 141 of the two chamfered portions 14 are complementary.
  • the fourth blade surface 141 is inclined with respect to the side surface 102
  • the fourth blade surface 141 is connected to the third blade surface 131, specifically, a fourth blade surface 141
  • the other fourth side face 141 is inclined relative to the other side 102 of the blade 10 with respect to one of the sides 102 of the blade 10.
  • the two flutes 15 are formed in complementary recesses on opposite sides 102 of the blade 10, and the flutes 15 are connected to the boring portion 11, the grooving portion 12 and the cutting edge portion 13, in particular, One of the flutes 15 is formed at one side 101 of one of the sides 102 of the insert 10, and the other flute 15 is formed at the other side 101 of the other side 102 of the insert 10.
  • the fixing hole 16 is formed through the blade 10 .
  • the mounting end 17 is formed in a wedge shape at one end of the blade 10.
  • the shape of the mounting end 17 is not limited thereto.
  • the shank 20 is a rod body having a mounting portion 21 and an abutting portion 200 at one end thereof, and has a connecting member 22 .
  • the connecting member 22 is a rod. Screw; the mounting end 17 of the blade 10 is connected to the mounting portion 21 of the shank 20.
  • the mounting portion 21 is formed at one end of the shank 20 .
  • the mounting portion 21 is two spaced apart holding pieces 211 .
  • the two holding pieces 211 form a receiving groove in the center, and the holding piece
  • the connecting holes 212 of the two clamping pieces 211 are respectively corresponding to each other, wherein the inner edge of the connecting hole 212 of the holding piece 211 forms an internal thread, and the abutting portion 200 is formed by a wedge-shaped recess.
  • the two clamping pieces 211 are formed in the receiving groove.
  • the mounting end 17 of the blade 10 is correspondingly abutted against the abutting portion 200, and the fixing hole 16 is correspondingly held.
  • the connecting hole 212 of the piece 211, the connecting piece 22 passes through the holding piece 211 and the fixing hole 16, and is screwed to the connecting hole 212 having an internal thread.
  • the abutting portion 200A of the shank 20A is formed in a wedge-shaped convex shape, and the mounting end 17A of the blade 10A is wedge-shaped. The recess of the shape, when mounted, the mounting end 17A of the blade 10A is abutted against the abutting portion 200A of the shank 20A.
  • the wedge-shaped abutting relationship between the mounting end 17 of the blade 10 and the abutting portion 200 of the shank 20 helps the present invention to maintain the stability of the blade 10 relative to the shank 20 during processing. A sloshing situation occurs.
  • the blade 10 of the present invention is mounted.
  • the shank 20 is combined to cut a workpiece 30, and the blade 10 is cut into the groove 30, and the boring portion 11 of the blade 10 processes the groove 31 to form a
  • the tapered portion 311, the slit portion 12 and the cutting edge portion 13 are respectively formed to form an end surface 312 of the groove 31 and a side wall 313, and the chamfer portion 14 forms a first chamfer 314 of the groove 31, and then,
  • a drill bit 40 is further cut at the center of the cone 311 to form a hole 32.
  • the taper 311 can be used for positioning and guiding the drilling process of the drill bit 40.
  • the hole 32 forms a stepped structure.
  • the groove 31 and the hole 32 form a counterbore structure, and since the aperture of the hole 32 is slightly smaller than the maximum aperture of the cone 311, The junction of the groove 31 and the hole 32 naturally forms a second chamfer 3111.
  • the processing features of the workpiece 30 can be formed into a tapered 311, an end surface 312, a side wall 313, and a first chamfer 314, and then only need to be drilled by the drill 40.
  • the hole 32 can complete the processing of the countersunk hole and the chamfering, thereby greatly reducing the cutting process and the required tool, thereby shortening the processing time and improving the manufacturing efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

一种四合一螺丝孔沉头刀,其具有一刀片(10、10A),该刀片装设于一刀柄(20、20A),该刀片的切削端具有一钻坑部(11),该钻坑部的两侧分别连接一切槽部(12)的一端,该刀片的相对的两侧缘(101)分别形成有一切刃部(13)及一倒角部(14),该切刃部(13)连接该切槽部(12)的另一端,该刀片的相对的两侧面分别形成一排屑槽(15);通过该刀片的钻坑部(11)于加工件形成锥坑,该切槽部(12)及该切刃部(13)切削形成凹槽,并且,该倒角部(14)加工该凹槽的第一倒角,再由钻头于该锥坑中央处钻削形成孔,即可形成沉头孔及第二倒角,使得沉头孔及倒角加工的工序得以缩减,降低所需的切削刀具数量,以缩短加工时间,并改善加工制造效率。

Description

四合一螺丝孔沉头刀 技术领域
本发明涉及一种加工刀具,特别是涉及一种在工件上加工成型为孔的刀具。
背景技术
钻孔是机械加工中常见的制程,其通常视工件及配合供螺丝贯穿连接的装配需求而定,而在工件上实施沉头孔加工,可提供螺丝的头部得以埋入沉头孔内,而不凸伸出工件表面,另外为了除去加工所产生的毛边,以及为了便于零件装配,于孔加工完毕后,工作人员会进一步于孔的边缘处进行倒角。
现有技术的沉头孔加工流程,请参照图11至图15所示,当工作人员欲于一加工件50上进行沉头孔加工时,首先,如图11所示,通过一中心钻头60于该加工件50处,加工出一锥坑51,以便于钻孔加工的定位与导引,接着以一钻头70于该锥坑51中央处,如图12所示,钻削形成一孔52,工作人员再以一沉头铣刀80于该锥坑51处,如图13所示,进一步切削形成一沉头孔53,该沉头孔53连接于该孔52而形成阶梯状,使用一第一倒角刀91于该沉头孔53连接该孔52的边缘处进行倒角,如图14所示,以形成一第一倒角531,最后,以一第二倒角刀92于该沉头孔53的开孔边缘处倒角,如图15所示,以形成一第二倒角532。
然而,现有技术的沉头孔加工,需经过多道工序,以各种不同类型的刀具切削,才能完成沉头孔及倒角的加工,使得整个加工流程耗费时间,从而降低加工制造的效率。
发明内容
本发明的目的在于改善现有技术中,需以多道工序形成沉头孔及倒角加工,形成耗费时间与加工制造效率低的缺失,通过本发明技术手段的实施,使得加工的工序得以缩减,降低所需的切削刀具数量,从而缩短加工时间,以改善加工制造效率。
为达到上述的创作目的,本发明所采用的技术手段为设计一种四合一螺丝孔沉头刀,其中,该四合一螺丝孔沉头刀具有一刀片及一刀柄,该刀片连接于 该刀柄;
该刀片是一片体,并且该刀片具有一钻坑部、两切槽部、两切刃部、两倒角部及至少一排屑槽,所述刀片的相对的两侧处是侧缘,所述刀片的相对的两表面是侧面,所述侧缘连接于所述侧面;
该钻坑部呈钝角状的凸伸于该刀片一端面的中央处,该两切槽部形成于该刀片的端面且两切槽部分别位于该钻坑部的两侧;
该两切刃部分别形成于该刀片的相对的两侧缘,该切刃部一端部连接于该切槽部的一端部;
该两倒角部分别形成于该刀片的相对的两侧缘,该倒角部一端部连接于该切刃部的另一端部,并且该倒角部与该切刃部形成一钝角;
该排屑槽凹陷形成于该刀片的一侧面,并且该排屑槽连接于该钻坑部、切槽部及该切刃部。
所述的四合一螺丝孔沉头刀,其中,该刀片具有两排屑槽,其中一排屑槽形成于该刀片的一侧面的连接一侧缘处,另一排屑槽形成于该刀片的另一侧面的连接另一侧缘处;
该钻坑部具有两第一刃面,该两第一刃面对称形成于该刀片的端面中央的两侧处,并且,其中一第一刃面相对于该刀片的一侧面倾斜,另一第一刃面相对于该刀片的另一侧面倾斜;
该两切槽部各具有一第二刃面,其中一第二刃面相对于该刀片的一侧面倾斜,另一第二刃面相对于该刀片的另一侧面倾斜,并且该两第二刃面分别连接邻近的该第一刃面;
该两切刃部各具有一第三刃面,其中一第三刃面相对于该刀片的一侧面倾斜,另一第三刃面相对于该刀片的另一侧面倾斜,并且该两第三刃面分别连接邻近的该第二刃面;
该两倒角部各具有一第四刃面,其中一第四刃面相对于该刀片的一侧面倾斜,另一第四刃面相对于该刀片的另一侧面倾斜,并且该两第四刃面分别连接邻近的该第三刃面。
所述的四合一螺丝孔沉头刀,其中,该刀柄是一杆体,该刀柄的一端形成一装设部;
该刀片具有一安装端,该安装端连接固定于该刀柄的装设部。
所述的四合一螺丝孔沉头刀,其中,该刀柄进一步具有一连接件,该装设部凸伸形成于该刀柄的一端;
该装设部是两间隔设置的挟持片,该两挟持片的中央形成一容槽,并且,该两挟持片分别穿设形成一连接孔,该两挟持片上的连接孔相互对应,其中一挟持片的连接孔的内缘形成内螺纹;
该刀片具有一固定孔,该刀片容设于该两挟持片形成的容槽,该固定孔对应该挟持片的连接孔;该连接件穿设该挟持片及该固定孔,并且该连接件螺纹连接于具有内螺纹的连接孔。
所述的四合一螺丝孔沉头刀,其中,该刀柄进一步具有一抵靠部,该抵靠部呈楔形状的凹陷形成于该两挟持片构成的容槽;
该安装端是呈一楔形状的凸伸形成于该刀片的一端部,该安装端相应顶抵于该刀柄的抵靠部。
所述的四合一螺丝孔沉头刀,其中,该刀柄进一步具有一抵靠部,该抵靠部呈楔形状的凸伸形成于该两挟持片构成的容槽;
该安装端是呈一楔形状的凹陷形成于该刀片的一端部,该安装端受该刀柄的抵靠部顶抵。
本发明的优点在于,通过该刀片的钻坑部于一加工件形成一锥坑,该刀片的切槽部及切刃部于该加工件切削形成一凹槽,并且,该倒角部加工该凹槽的第一倒角,再由一钻头于该锥坑中央处钻削出一孔,即可形成一沉头孔及一第二倒角,使得加工件的沉头孔与倒角加工的工序得以缩减,降低所需的切削刀具数量,以缩短加工时间,并改善加工制造效率。
附图说明
以下附图仅旨在于对本发明做示意性说明和解释,并不限定本发明的范围。其中:
图1为本发明的立体图。
图2为本发明的分离图。
图3为本发明刀片的主视图。
图4为本发明图3的仰视图。
图5为本发明图3的侧视图。
图6为本发明刀柄的主视图。
图7为本发明的局部剖视图。
图8为本发明安装的另一实施例图。
图9为本发明的加工凹槽示意图。
图10为本发明的钻孔示意图。
图11为现有技术的钻中心孔示意图。
图12为现有技术的钻孔示意图。
图13为现有技术的加工沉头孔示意图。
图14为现有技术的加工第一倒角示意图。
图15为现有技术的加工第二倒角示意图。
附图标号说明
10、10A刀片              11钻坑部
111第一刃面              12切槽部
121第二刃面              13切刃部
131第三刃面              14倒角部
141第四刃面              15排屑槽
16固定孔                 17、17A安装端
101侧缘                  102侧面
20、20A刀柄              21装设部
200、200A抵靠部          211挟持片
212连接孔                22连接件
30加工件                 31凹槽
311锥坑                  3111第二倒角
312端面                  313侧壁
314第一倒角              32孔
40钻头                   50加工件
51锥坑                   52孔
53沉头孔                 531第一倒角
532第二倒角              60中心钻头
70钻头                   80沉头铣刀
91第一倒角刀             92第二倒角刀
具体实施方式
以下配合图式及本发明的较佳实施例,进一步阐述本发明为达成预定发明目的所采取的技术手段。
请参照图1及图2所示,本发明的四合一螺丝孔沉头刀,具有一刀片10及一刀柄20,该刀片10装设结合于该刀柄20的一端。
请参照图3及图4所示,该刀片10是一片体,其具有一切削端及一安装端17,该切削端及该安装端17分别形成于该刀片10的相对的两端部;该刀片10的相对的两侧处是侧缘101,该刀片10的相对的两表面是侧面102,该侧缘101连接于该侧面102。
该切削端具有一钻坑部11、两切槽部12、两切刃部13、两倒角部14、两排屑槽15及一固定孔16。
该钻坑部11呈钝角状的凸伸于该刀片10一端面的中央处,该两切槽部12形成于该刀片10的端面且分别位于该钻坑部11的两侧,该钻坑部11具有两第一刃面111,该两第一刃面111于该刀片10的端面对称互补的形成,该第一刃面111相对于该侧面102倾斜,具体而言,该两第一刃面111对称形成于该刀片10端面中央的两侧处,并且,其中一第一刃面111相对于该刀片10的一侧面102倾斜,另一第一刃面111相对于该刀片10的另一侧面102倾斜;该切槽部12具有一第二刃面121,该两切槽部12的第二刃面121于该刀片10的端面互补的形成,该第二刃面121相对于该侧面102倾斜,并且该第二刃面121连接该第一刃面111,具体而言,其中一第二刃面121相对于其中一侧面102倾斜,另一第二刃面121相对于另一侧面102倾斜。
请同时参照图5所示,该两切刃部13分别形成于该刀片10的相对的两侧缘101,该切刃部13的一端部连接于该切槽部12的一端部,该切刃部13具有一第三刃面131,该两切刃部13的第三刃面131互补的形成于该刀片10的两侧缘101,该第三刃面131相对于该侧面102倾斜,并且该第三刃面131连接该第二刃面121,具体而言,其中一第三刃面131相对于该刀片10其中一侧面102倾斜,另一第三刃面131相对于该刀片10另一侧面102倾斜。
该两倒角部14分别形成于该刀片10的相对的两侧缘101,该倒角部14的一端部连接于该切刃部13的另一端部,并且该倒角部14与该切刃部13形成一钝角,该倒角部14具有一第四刃面141,该两倒角部14的第四刃面141互补的 形成于该刀片10的两侧缘101,该第四刃面141相对于该侧面102倾斜,并且该第四刃面141连接该第三刃面131,具体而言,其中一第四刃面141相对于该刀片10其中一侧面102倾斜,另一第四刃面141相对于该刀片10另一侧面102倾斜。
该两排屑槽15呈互补的凹陷形成于该刀片10的相对的两侧面102,并且排屑槽15连接于该钻坑部11、切槽部12及该切刃部13,具体而言,其中一排屑槽15形成于该刀片10其中一侧面102的连接其中一侧缘101处,另一排屑槽15形成于该刀片10另一侧面102的连接另一侧缘101处。
该固定孔16贯穿形成于该刀片10。
于图3的具体实施例,该安装端17呈一楔形状的凸伸形成于该刀片10的一端部,但是,该安装端17的外形并不以此为限。
请参照图6及图7所示,该刀柄20是一杆体,其一端形成一装设部21及一抵靠部200,并且具有一连接件22,具体而言,该连接件22是一螺丝;该刀片10的安装端17连接固定于该刀柄20的装设部21。
该装设部21凸伸形成于该刀柄20的一端,具体而言,该装设部21是两间隔设置的挟持片211,该两挟持片211中央形成一容槽,并且,该挟持片211分别穿设形成一连接孔212,该两挟持片211上的连接孔212相互对应,其中一挟持片211的连接孔212内缘形成内螺纹,该抵靠部200呈楔形状的凹陷形成于该两挟持片211构成的容槽;该刀片10容设于该两挟持片211形成的容槽,该刀片10的安装端17相应顶抵于该抵靠部200,该固定孔16对应该挟持片211的连接孔212,该连接件22穿设该挟持片211及该固定孔16,并且螺纹连接于具有内螺纹的连接孔212。
该刀片10固定于该刀柄20的另一实施例,请参照图8所示,该刀柄20A的抵靠部200A呈楔形状的凸伸形成,该刀片10A的安装端17A则相应呈楔形状的凹陷,于安装时,该刀片10A的安装端17A受该刀柄20A的抵靠部200A顶抵。
该刀片10的安装端17与该刀柄20的抵靠部200间配合的楔形抵靠关系,有助于本发明于加工过程中,保持该刀片10相对于该刀柄20的稳固性,不致产生晃动情形。
使用本发明进行沉头孔加工的步骤,请参照图9所示,本发明的刀片10装 设结合于该刀柄20,以对一加工件30进行切削加工,该刀片10于该加工件30切削形成一凹槽31,该刀片10的钻坑部11加工该凹槽31,以形成一锥坑311,该切槽部12及该切刃部13分别加工形成该凹槽31的端面312及侧壁313,该倒角部14则形成该凹槽31的第一倒角314,接着,参照图10所示,再通过一钻头40于该锥坑311中央处切削,以形成一孔32,该锥坑311可供该钻头40钻孔加工的定位与导引,该凹槽31连接该孔32而形成一阶梯状结构,此时,该凹槽31及该孔32即形成一沉头孔的构造,并且,由于该孔32的孔径略小于该锥坑311的最大孔径,故于该凹槽31及该孔32的连接处,即自然形成一第二倒角3111。
由于本发明的刀片10以一次切削,即可于该加工件30形成锥坑311、端面312、侧壁313及第一倒角314等加工特征,之后,仅需再以该钻头40钻削形成该孔32,即可完成沉头孔及倒角的加工,因此,可大幅缩减切削工序及所需刀具,从而缩短加工时间,以提升加工制造效率。
以上所述仅为本发明示意性的具体实施方式,并非用以限定本发明的范围。任何本领域的普通技术人员,在不脱离本发明的构思和原则的前提下所作出的等同变化与修改,均应属于本发明保护的范围。

Claims (6)

  1. 一种四合一螺丝孔沉头刀,其特征在于:所述四合一螺丝孔沉头刀具有一刀片及一刀柄,所述刀片连接于所述刀柄;
    所述刀片是一片体,并且所述刀片具有一钻坑部、两切槽部、两切刃部、两倒角部及至少一排屑槽,所述刀片的相对的两侧处是侧缘,所述刀片的相对的两表面是侧面,所述侧缘连接于所述侧面;
    所述钻坑部呈钝角状的凸伸于所述刀片的一端面的中央处,两所述切槽部形成于所述刀片的所述端面且两所述切槽部分别位于所述钻坑部的两侧;
    两所述切刃部分别形成于所述刀片的相对的两侧缘,所述切刃部的一端部连接于所述切槽部的一端部;
    两所述倒角部分别形成于所述刀片的相对的两侧缘,所述倒角部的一端部连接于所述切刃部的另一端部,并且所述倒角部与所述切刃部形成一钝角;
    所述排屑槽凹陷形成于所述刀片的一侧面,并且所述排屑槽连接于所述钻坑部、所述切槽部及所述切刃部。
  2. 根据权利要求1所述的四合一螺丝孔沉头刀,其特征在于:所述刀片具有两所述排屑槽,其中一所述排屑槽形成于所述刀片的一所述侧面的连接一所述侧缘处,另一所述排屑槽形成于所述刀片的另一所述侧面的连接另一所述侧缘处;
    所述钻坑部具有两第一刃面,两所述第一刃面对称形成于所述刀片的端面中央的两侧处,并且,其中一所述第一刃面相对于所述刀片的一所述侧面倾斜,另一所述第一刃面相对于所述刀片的另一所述侧面倾斜;
    两所述切槽部各具有一第二刃面,其中一所述第二刃面相对于所述刀片的一所述侧面倾斜,另一所述第二刃面相对于所述刀片的另一所述侧面倾斜,并且两所述第二刃面分别连接邻近的所述第一刃面;
    两所述切刃部各具有一第三刃面,其中一所述第三刃面相对于所述刀片的一所述侧面倾斜,另一所述第三刃面相对于所述刀片另一所述侧面倾斜,并且两所述第三刃面分别连接邻近的所述第二刃面;
    两所述倒角部各具有一第四刃面,其中一所述第四刃面相对于所述刀片的一所述侧面倾斜,另一所述第四刃面相对于所述刀片另一所述侧面倾斜,并且 两所述第四刃面分别连接邻近的所述第三刃面。
  3. 根据权利要求1或2所述的四合一螺丝孔沉头刀,其特征在于:所述刀柄是一杆体,所述刀柄的一端形成一装设部;
    所述刀片具有一安装端,所述安装端连接固定于所述刀柄的所述装设部。
  4. 根据权利要求3所述的四合一螺丝孔沉头刀,其特征在于:所述刀柄进一步具有一连接件,所述装设部凸伸形成于所述刀柄的一端;
    所述装设部是两间隔设置的挟持片,两所述挟持片的中央形成一容槽,并且,两所述挟持片分别穿设形成一连接孔,两所述挟持片上的所述连接孔相互对应,其中一所述挟持片的所述连接孔的内缘形成内螺纹;
    所述刀片具有一固定孔,所述刀片容设于两所述挟持片形成的所述容槽,所述固定孔对应所述挟持片的连接孔;
    所述连接件穿设所述挟持片及所述固定孔,并且所述连接件螺纹连接于具有内螺纹的所述连接孔。
  5. 根据权利要求4所述的四合一螺丝孔沉头刀,其特征在于:所述刀柄进一步具有一抵靠部,所述抵靠部呈楔形状的凹陷形成于两所述挟持片构成的所述容槽;
    所述安装端是呈一楔形状的凸伸形成于所述刀片的一端部,所述安装端相应顶抵于所述刀柄的所述抵靠部。
  6. 根据权利要求4所述的四合一螺丝孔沉头刀,其特征在于:所述刀柄进一步具有一抵靠部,所述抵靠部呈楔形状的凸伸形成于两所述挟持片构成的所述容槽;
    所述安装端是呈一楔形状的凹陷形成于所述刀片的一端部,所述安装端受所述刀柄的所述抵靠部顶抵。
PCT/CN2016/073103 2015-03-04 2016-02-01 四合一螺丝孔沉头刀 WO2016138810A1 (zh)

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