WO2019047262A1 - 圆鼻铣刀 - Google Patents

圆鼻铣刀 Download PDF

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Publication number
WO2019047262A1
WO2019047262A1 PCT/CN2017/101900 CN2017101900W WO2019047262A1 WO 2019047262 A1 WO2019047262 A1 WO 2019047262A1 CN 2017101900 W CN2017101900 W CN 2017101900W WO 2019047262 A1 WO2019047262 A1 WO 2019047262A1
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WO
WIPO (PCT)
Prior art keywords
connecting portion
milling cutter
shaft core
processing
round nose
Prior art date
Application number
PCT/CN2017/101900
Other languages
English (en)
French (fr)
Inventor
何于亮
王坦
张德威
Original Assignee
深圳市鑫国钰精密工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市鑫国钰精密工具有限公司 filed Critical 深圳市鑫国钰精密工具有限公司
Publication of WO2019047262A1 publication Critical patent/WO2019047262A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft

Definitions

  • the present invention relates to the field of drilling equipment, and in particular, to a round nose milling cutter.
  • a milling cutter is a rotary cutter having one or more cutter teeth for milling. In the work, each tooth cuts the remaining amount of the workpiece intermittently. Milling cutters are mainly used to machine planes, steps, grooves, forming surfaces and cutting workpieces on a milling machine.
  • the existing round nose milling cutters are often used for milling workpieces, often due to the small number of cutting edges (generally two or three), which causes the cutting edges to be easily damaged.
  • the round nose milling cutter has a short service life and low machining precision.
  • an embodiment of the present invention provides a round nose milling cutter having a long service life and high machining accuracy.
  • the present invention provides a round nose milling cutter, including: a shank, a first connecting portion, a second connecting portion, and a processing portion, wherein one end of the first connecting portion is connected to the shank, the first One end of the two connecting portion is connected to the other end of the first connecting portion; the processing portion has a shaft core, one end of the shaft core is connected to the other end of the second connecting portion, and the shaft core is provided with a blade a belt and a chip pocket, wherein the land and the chip flute are wound from the joint of the shaft core and the second connecting portion to the outer end of the shaft core toward the end of the shaft core, and the processing portion A cutting edge is provided at an end face away from the shank.
  • the connecting portion has a truncated cone shape, and a diameter of one end connected to the shank is larger than a diameter of one end connected to the second connecting portion.
  • the land and the chip flute are both helical.
  • the land angle of the land is in the range of 34 to 36 degrees.
  • the number of the land and the cutting edge are four.
  • the round nose milling cutter has an axis of rotation; the four land and four cutting edges are centrally symmetric with respect to the axis of rotation.
  • the length of the two non-adjacent cutting edges is greater than the length of the other two non-adjacent cutting edges; Adjacent cutting edges meet at the end faces of the core.
  • the cutting edge includes a first processing surface, a second processing surface, and a third processing surface, the cutting edge of the cutting edge being formed by the intersection of the first processing surface and the second processing surface, and The second processing surface is in contact with the third processing surface.
  • an angle between the first processing surface and the second processing surface is an acute angle
  • an angle between the first processing surface and the third processing surface is also an acute angle
  • the first processing The angle between the surface and the second processing surface is greater than the angle between the first processing surface and the third processing surface.
  • the angle between the second machined surface and the third machined surface ranges from 12 to 18 degrees.
  • the present invention provides a round nose milling cutter, comprising: a shank, a first connecting portion, a second connecting portion and a processing portion, wherein One end of a connecting portion is connected to the shank, one end of the second connecting portion is connected to the other end of the first connecting portion; the processing portion has a shaft core, and one end of the shaft core is connected with the second end The other end of the portion is connected, the shaft core is provided with a land and a chip pocket, and the land and the chip pocket are arranged from the joint of the shaft core and the second connecting portion to the end of the shaft core And a cutting edge is disposed on an outer side surface of the shaft core, and an end surface of the processing portion away from the shank.
  • the round nose cutter is used to machine the surface of the workpiece with the cutting edge, and the impact force of each cutting edge is reduced, so that the cutting edge is not easily damaged by the impact, thereby making the round nose milling cutter more durable. And the processing effect is better.
  • FIG. 1 is a schematic structural view of a round nose milling cutter according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a processing surface of the round nose milling cutter of FIG. 1;
  • FIG. 3 is a schematic cross-sectional view showing the structure of a cutting edge in the round nose milling cutter of FIG. 1.
  • FIG. 1 is a schematic structural view of a round nose milling cutter according to an embodiment of the present invention.
  • the embodiment of the present invention provides a round nose milling cutter 100, including a shank 10, a first connecting portion 20, a second connecting portion 30 and a processing portion 40, wherein the first connecting portion 20 is respectively connected with the shank 10 and the second connecting portion One end of 30 is connected, and the other end of the second connecting portion 30 is connected to the processing portion 40.
  • the shank 10 is a cylinder
  • the round nose milling cutter 100 has a rotation axis A, and the rotation axis A coincides with the axis of the shank 10. After machining with the round nose milling cutter 100, the round nose milling cutter 100 rotates about the axis of rotation A.
  • the first connecting portion 20 has a truncated cone shape, and one end thereof has a larger diameter than the other end.
  • the shank 10 One end is connected to one end of the first connecting portion 20, and the diameter of the shank 10 is equal to the diameter of the end surface of the first connecting portion 20 to which it is connected.
  • the second connecting portion 30 has a cylindrical shape, one end of which is connected to the other end of the first connecting portion 20, the other end is connected to the processing portion 40, and the diameter of the second connecting portion 30 is equal to the first connecting portion 20 connected thereto. The diameter of the end face of the other end.
  • the processing portion 40 has a core 41 on which the land 42 and the chip pockets 43 are provided. Both the land 42 and the chip pocket 43 are spiral. Both the land 42 and the chip flute 43 are wound from the joint of the core 41 and the second connecting portion 30 to the outer side of the core 41 toward the end of the core 41, and the land 4 2 and the chip flute 43 interval setting. One end of the shaft core 41 is connected to the other end of the second connecting portion 30.
  • the rake angle of the land 42 ranges from 34 to 36 degrees.
  • the number of the land 42 and the chip pocket 43 are four, and the land 42 and the chip pocket 43 are opposite to the
  • the axis of rotation A is centrally symmetrical.
  • One of the land strips 42 is rotated 90 degrees about the axis of rotation A and will coincide with the other land 42.
  • the machining portion 40 is provided with a cutting edge 44 away from an end surface (ie, a machining surface) of the shank 10.
  • One end surface of the processing portion 40 includes an end surface of the shaft core 41 and a blade end end surface 42.
  • the cutting edge 44 extends from a central portion of the end face of the shaft core 31 (i.e., the end face end of the shaft core 41) to the outer edge of the end face 42 which is away from the outer edge of the core 41.
  • the cutting edge 44 is linear, so that the circular nose milling cutter 100 can smooth the surface of the workpiece by using the cutting edge 44 to machine the surface of the workpiece, thereby avoiding the protrusion on the surface of the processed workpiece.
  • the cutting edges 44 on the opposite sides of the end portion of the processing portion 40 ie, two non-adjacent cutting edges 44
  • a central region of one end surface of the shaft core 41 is in contact with each other.
  • the length of the two non-adjacent cutting edges 44 is greater than the length of the other two non-adjacent cutting edges 44.
  • the other two non-adjacent cutting edges 44 are spaced apart by a certain distance in the central region of the end face of the shaft core 31.
  • the round nose milling cutter 100 Compared to a milling cutter having only three cutting edges, the round nose milling cutter 100 has four cutting edges 44, and the four cutting edges 44 rotate in the round nose milling cutter 100, and the same function occurs.
  • the round nose milling cutter 100 has an additional cutting edge 44 at the same speed (i.e., at the same cutting speed, the cutting effect is better); meanwhile, when milling with a round nose milling cutter 100, The impact force of each cutting edge 44 will change. Small, making the cutting edge 44 less susceptible to damage by impact, thereby making the round nose milling cutter 100 more durable (i.e., extending the life of the round nose milling cutter 100).
  • the cutting edge 44 includes a first processing surface 441, a second processing surface 442, and a third processing surface 443.
  • the cutting edge of the cutting edge 44 is formed by the intersection of the first processing surface 441 and the second processing surface 442, and the second processing surface 442 is also in contact with the third processing surface 443.
  • the angle between the first processing surface 441 and the second processing surface 442 is an acute angle
  • the angle between the first processing surface 441 and the third processing surface 443 is also an acute angle
  • the angle of the processing surface 442 is greater than the angle between the first processing surface 441 and the third processing surface 443.
  • the advantage of such a structure is that the angle between the first working surface 441 and the second processing surface 442 is large, so that the cutting edge 44 has a sharp edge and a large edge behind the cutting edge.
  • the thickness, such that the cutting edge 44 has a high strength, can effectively prevent excessive wear or breakage of the cutting edge 44 when the cutting edge 44 is machined, thereby extending the service life of the cutting edge 34.
  • the angle between the second machined surface 4 42 and the third machined surface 443 ranges from 12 to 18 degrees.
  • the present invention provides a round nose milling cutter 100, including: a shank 10, a first connecting portion 20, a second connecting portion 30, and a processing portion 40, wherein The first connecting portion 20 - end is connected to the shank 10 , the second connecting portion 30 - end is connected to the other end of the first connecting portion 20; the processing portion 40 has a shaft core 4 1 One end of the shaft core 41 is connected to the other end of the second connecting portion 30.
  • the shaft core 41 is provided with a land 42 and a chip pocket 43.
  • the land 42 and the chip pocket 43 are both A joint of the shaft core 41 and the second connecting portion 30 is wound around the end of the shaft core 41 on the outer side surface of the shaft core 41, and a cutting edge of the processing portion 40 away from the end surface of the shank 10 is provided. 44.
  • the number of the land 42 and the cutting edge 44 is four. Based on the above structure, the round nose cutter 100 is subjected to the surface of the workpiece by the cutting edge 44, and the impact force received by each of the cutting edges 44 becomes small, so that the cutting edge 44 is not easily damaged by the impact, thereby making the round nose milling.
  • the knife 100 is more durable and has a better processing effect.

Abstract

一种圆鼻铣刀,包括:刀柄(10)、第一连接部(20)、第二连接部(30)和加工部(40),第一连接部(20)一端与刀柄(10)连接,第二连接部(30)一端与第一连接部(20)的另一端连接;加工部(40)具有一轴芯(41),轴芯(41)一端与第二连接部(30)的另一端连接,轴芯(41)上设置有刃带(42)和容屑槽(43),刃带(42)和容屑槽(43)均自轴芯(41)与第二连接部(30)的连接处向轴芯(41)末端绕设于轴芯(41)的外侧面,并且加工部(40)远离刀柄(10)的一端端面设置有切削刃(44)。通过以上方式,使得该圆鼻铣刀(100)在用切削刃(44)加工工件的表面时,每个切削刃(44)受到的冲击力会变小,使得切削刃(44)不易因受冲击而损坏,从而使得圆鼻铣刀更耐用,并且加工效果更好。

Description

说明书 发明名称:圆鼻铣刀
技术领域
[0001] 本发明涉及钻削设备技术领域, 尤其涉及一种圆鼻銑刀。
背景技术
[0002] 銑刀, 是用于銑削加工的、 具有一个或多个刀齿的旋转刀具。 工作吋各刀齿依 次间歇地切去工件的余量。 銑刀主要用于在銑床上加工平面、 台阶、 沟槽、 成 形表面和切断工件等。
[0003] 现有技术至少存在以下问题: 现有的圆鼻銑刀在对工件进行銑削加工吋, 往往 由于切削刃的数量较少 (一般为两个或三个) , 而导致切削刃容易损坏, 使得 圆鼻銑刀的使用寿命短, 加工精度较低。
技术问题
[0004] 为了解决上述技术问题, 本发明实施例提供一种使用寿命长并且加工精度高的 圆鼻銑刀。
问题的解决方案
技术解决方案
[0005] 本发明提供一种圆鼻銑刀, 包括: 刀柄、 第一连接部、 第二连接部和加工部, 其中, 所述第一连接部一端与所述刀柄连接, 所述第二连接部一端与所述第一 连接部的另一端连接; 所述加工部具有一轴芯, 所述轴芯一端与所述第二连接 部的另一端连接, 所述轴芯上设置有刃带和容屑槽, 所述刃带和容屑槽均自所 述轴芯与第二连接部的连接处向所述轴芯末端绕设于所述轴芯的外侧面, 并且 所述加工部远离所述刀柄的一端端面设置有切削刃。
[0006] 在一些实施例中, 所述连接部呈圆台状, 其与刀柄连接的一端的直径大于与所 述第二连接部连接的一端的直径。
[0007] 在一些实施例中, 所述刃带和容屑槽均呈螺旋状。
[0008] 在一些实施例中, 所述刃带的螺旋角范围为 34到 36度。
[0009] 在一些实施例中, 所述刃带和切削刃的个数均为四个。 [0010] 在一些实施例中, 所述圆鼻銑刀具有旋转轴线; 所述四个刃带和四个切削刃相 对于所述旋转轴线呈中心对称。
[0011] 在一些实施例中, 位于所述加工部一端端面上, 两个不相邻的所述切削刃的长 度大于另外两个不相邻的所述切削刃的长度; 所述两个不相邻的切削刃在所述 轴芯的末端端面相接。
[0012] 在一些实施例中, 所述切削刃包括第一加工面、 第二加工面和第三加工面, 所 述切削刃的刃口由第一加工面和第二加工面相交形成, 并且第二加工面与第三 加工面相接。
[0013] 在一些实施例中, 所述第一加工面与第二加工面的夹角为锐角, 所述第一加工 面与第三加工面的夹角也为锐角, 并且所述第一加工面与第二加工面的夹角大 于所述第一加工面与第三加工面的夹角。
[0014] 在一些实施例中, 所述第二加工面和第三加工面的夹角范围为 12到 18度。
发明的有益效果
有益效果
[0015] 本发明的有益效果是: 与现有技术相比较, 本发明提供一种圆鼻銑刀, 包括: 刀柄、 第一连接部、 第二连接部和加工部, 其中, 所述第一连接部一端与所述 刀柄连接, 所述第二连接部一端与所述第一连接部的另一端连接; 所述加工部 具有一轴芯, 所述轴芯一端与所述第二连接部的另一端连接, 所述轴芯上设置 有刃带和容屑槽, 所述刃带和容屑槽均自所述轴芯与第二连接部的连接处向所 述轴芯末端绕设于所述轴芯的外侧面, 并且所述加工部远离所述刀柄的一端端 面设置有切削刃。 基于以上结构使得该圆鼻銑刀在用切削刃加工工件的表面吋 , 每个切削刃受到的冲击力会变小, 使得切削刃不易因受冲击而损坏, 从而使 得圆鼻銑刀更耐用, 并且加工效果更好。
对附图的简要说明
附图说明
[0016] 一个或多个实施例通过与之对应的附图中的图片进行示例性说明, 这些示例性 说明并不构成对实施例的限定, 附图中具有相同参考数字标号的元件表示为类 似的元件, 除非有特别申明, 附图中的图不构成比例限制。 [0017] 图 1为本发明实施例中圆鼻銑刀的结构示意图;
[0018] 图 2为图 1中圆鼻銑刀中加工面的结构示意图;
[0019] 图 3为图 1中圆鼻銑刀中切削刃的结构示意剖面图。
本发明的实施方式
[0020] 为了便于理解本发明, 下面结合附图和具体实施方式, 对本发明进行更详细的 说明。 需要说明的是, 当元件被表述 "固定于"另一个元件, 它可以直接在另一个 元件上、 或者其间可以存在一个或多个居中的元件。 当一个元件被表述"连接"另 一个元件, 它可以是直接连接到另一个元件、 或者其间可以存在一个或多个居 中的元件。 本说明书所使用的术语"上"、 "下"、 "内"、 "外"、 "底部 "等指示的方 位或位置关系为基于附图所示的方位或位置关系, 仅是为了便于描述本发明和 简化描述, 而不是指示或暗示所指的装置或元件必须具有特定的方位、 以特定 的方位构造和操作, 因此不能理解为对本发明的限制。 此外, 术语"第一"、 "第 二""第三"等仅用于描述目的, 而不能理解为指示或暗示相对重要性。
[0021] 除非另有定义, 本说明书所使用的所有的技术和科学术语与属于本发明的技术 领域的技术人员通常理解的含义相同。 本说明书中在本发明的说明书中所使用 的术语只是为了描述具体的实施方式的目的, 不是用于限制本发明。 本说明书 所使用的术语 "和 /或"包括一个或多个相关的所列项目的任意的和所有的组合。
[0022] 此外, 下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未 构成冲突就可以相互结合。
[0023] 请参阅图 1, 图 1为本发明实施例中圆鼻銑刀的结构示意图。 本发明实施例提供 一种圆鼻銑刀 100, 包括刀柄 10、 第一连接部 20、 第二连接部 30和加工部 40, 其 中第一连接部 20分别与刀柄 10及第二连接部 30的一端连接, 第二连接部 30的另 一端与加工部 40连接。
[0024] 具体的, 刀柄 10为圆柱体, 圆鼻銑刀 100具有旋转轴线 A, 旋转轴线 A与刀柄 10 的轴线重合。 在使用圆鼻銑刀 100进行加工吋, 该圆鼻銑刀 100绕旋转轴线 A进行 旋转。
[0025] 第一连接部 20呈圆台状, 其一端的直径大于另一端。 在本实施例中, 刀柄 10的 一端与第一连接部 20的一端连接, 并且刀柄 10的直径等于与其连接的第一连接 部 20—端端面的直径。
[0026] 第二连接部 30呈圆柱状, 其一端与第一连接部 20的另一端连接, 另一端与加工 部 40连接, 并且第二连接部 30的直径等于与其连接的第一连接部 20另一端端面 的直径。
[0027] 请一同参阅图 2, 上述加工部 40具有一轴芯 41, 所述轴芯 41上设置有刃带 42和 容屑槽 43, 刃带 42和容屑槽 43均呈螺旋状。 刃带 42和容屑槽 43均自所述轴芯 41 与第二连接部 30的连接处向所述轴芯 41末端绕设于轴芯 41的外侧面, 并且刃带 4 2和容屑槽 43间隔设置。 所述轴芯 41一端与所述第二连接部 30的另一端连接。 所 述刃带 42的螺旋角范围为 34到 36度。 请参阅图 2, 并结合图 1, 在本发明实施例 中, 所述刃带 42和容屑槽 43的个数均为四个, 并且所述刃带 42和容屑槽 43相对 于所述旋转轴线 A呈中心对称。 其中一个刃带 42绕旋转轴线 A旋转 90度后将与另 一个刃带 42重合。
[0028] 在所述轴芯 41的轴向方向上, 所述加工部 40远离所述刀柄 10的一端端面 (即, 加工面) 设置有切削刃 44。 所述加工部 40的一端端面包括轴芯 41一端端面和刃 带 42—端端面。 所述切削刃 44由所述轴芯 31—端端面 (即, 所述轴芯 41的末端 端面) 的中心区域延伸至刃带 42—端端面上远离于所述轴芯 41的外缘。 所述切 削刃 44呈直线形, 使得该圆鼻銑刀 100在使用切削刃 44加工工件的表面吋, 能够 将工件的表面加工的光滑而平整, 避免在加工过的工件表面留有凸起。
[0029] 为使得所述轴芯 41一端端面的中心区域能够加工到工件, 位于所述加工部 40— 端端面上两相对侧的切削刃 44 (即, 两个不相邻的切削刃 44) 在所述轴芯 41一 端端面的中心区域相接。 上述两个不相邻的切削刃 44长度大于另外两个不相邻 的切削刃 44的长度。 另外两个不相邻的切削刃 44在所述轴芯 31—端端面的中心 区域间隔一定的距离。
[0030] 相比于仅具有三个切削刃的銑刀, 所述圆鼻銑刀 100具有四个切削刃 44, 四个 切削刃 44在圆鼻銑刀 100转动吋, 同吋发生作用, 使得圆鼻銑刀 100在同样的转 速下, 多了一个切削刃 44产生作用, (即, 在切削速度相同吋, 其切削效果更 好) ; 同吋, 在使用圆鼻銑刀 100进行銑削吋, 每个切削刃 44受到的冲击力会变 小, 使得切削刃 44不易因受冲击而损坏, 从而使得圆鼻銑刀 100更耐用 (即, 延 长了圆鼻銑刀 100的使用寿命) 。
[0031] 请参阅图 3, 并结合图 1, 所述切削刃 44包括第一加工面 441、 第二加工面 442和 第三加工面 443。 切削刃 44的刃口由第一加工面 441和第二加工面 442相交形成, 并且第二加工面 442还与第三加工面 443相接。 所述第一加工面 441与第二加工面 442的夹角为锐角, 所述第一加工面 441与第三加工面 443的夹角也为锐角, 并且 所述第一加工面 441与第二加工面 442的夹角大于所述第一加工面 441与第三加工 面 443的夹角。 此种结构的好处是: 所述第一加工面 441与第二加工面 442的夹角 较大, 可使得切削刃 44在具有较锋利的刃口的同吋, 其刃口后方具有较大的厚 度, 使得切削刃 44具有高的强度, 可有效地防止在使用切削刃 44加工吋, 切削 刃 44出现过度磨损或断裂的情况, 从而延长切削刃 34的使用寿命。 第二加工面 4 42和第三加工面 443的夹角范围为 12到 18度。 本发明的有益效果是: 与现有技术 相比较, 本发明提供一种圆鼻銑刀 100, 包括: 刀柄 10、 第一连接部 20、 第二连 接部 30和加工部 40, 其中, 所述第一连接部 20—端与所述刀柄 10连接, 所述第 二连接部 30—端与所述第一连接部 20的另一端连接; 所述加工部 40具有一轴芯 4 1, 所述轴芯 41一端与所述第二连接部 30的另一端连接, 所述轴芯 41上设置有刃 带 42和容屑槽 43, 所述刃带 42和容屑槽 43均自所述轴芯 41与第二连接部 30的连 接处向所述轴芯 41末端绕设于所述轴芯 41的外侧面, 并且所述加工部 40远离所 述刀柄 10的一端端面设置有切削刃 44, 所述刃带 42和切削刃 44的个数均为四个 。 基于以上结构使得该圆鼻銑刀 100在用切削刃 44加工工件的表面吋, 每个切削 刃 44受到的冲击力会变小, 使得切削刃 44不易因受冲击而损坏, 从而使得圆鼻 銑刀 100更耐用, 并且加工效果更好。
[0032] 最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其限制; 在本发明的思路下, 以上实施例或者不同实施例中的技术特征之间也可以进行 组合, 步骤可以以任意顺序实现, 并存在如上所述的本发明的不同方面的许多 其它变化, 为了简明, 它们没有在细节中提供; 尽管参照前述实施例对本发明 进行了详细的说明, 本领域的普通技术人员应当理解: 其依然可以对前述各实 施例所记载的技术方案进行修改, 或者对其中部分技术特征进行等同替换; 而 这些修改或者替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案 的范围。

Claims

权利要求书
[权利要求 1] 一种圆鼻銑刀, 其特征在于, 包括:
刀柄;
第一连接部, 一端与所述刀柄连接;
第二连接部, 一端与所述第一连接部的另一端连接;
加工部, 具有一轴芯, 所述轴芯一端与所述第二连接部的另一端连接
, 所述轴芯上设置有刃带和容屑槽, 所述刃带和容屑槽均自所述轴芯 与第二连接部的连接处向所述轴芯末端绕设于所述轴芯的外侧面, 并 且所述加工部远离所述刀柄的一端端面设置有切削刃。
[权利要求 2] 根据权利要求 1所述的圆鼻銑刀, 其特征在于, 所述第一连接部呈圆 台状, 其与所述刀柄连接的一端的直径大于与所述第二连接部连接的 一端的直径。
[权利要求 3] 根据权利要求 1所述的圆鼻銑刀, 其特征在于: 所述刃带和容屑槽均 呈螺旋状。
[权利要求 4] 根据权利要求 3所述的圆鼻銑刀, 其特征在于, 所述刃带的螺旋角范 围为 34到 36度。
[权利要求 5] 根据权利要求 1所述的圆鼻銑刀, 其特征在于, 所述刃带和切削刃的 个数均为四个。
[权利要求 6] 根据权利要求 5所述的圆鼻銑刀, 其特征在于, 所述圆鼻銑刀具有旋 转轴线; 所述四个刃带和四个切削刃相对于所述旋转轴线呈中心对称
[权利要求 7] 根据权利要求 6所述的 T型銑刀, 其特征在于, 位于所述加工部一端 端面上, 两个不相邻的所述切削刃的长度大于另外两个不相邻的所述 切削刃的长度; 所述两个不相邻的切削刃在所述轴芯的末端端面相接
[权利要求 8] 根据权利要求 1所述的圆鼻銑刀, 其特征在于, 所述切削刃包括第一 加工面、 第二加工面和第三加工面, 所述切削刃的刃口由第一加工面 和第二加工面相交形成, 并且第二加工面与第三加工面相接。
[权利要求 9] 根据权利要求 8所述的圆鼻銑刀, 其特征在于, 所述第一加工面与第 二加工面的夹角为锐角, 所述第一加工面与第三加工面的夹角也为锐 角, 并且所述第一加工面与第二加工面的夹角大于所述第一加工面与 第三加工面的夹角。
[权利要求 10] 根据权利要求 9所述的圆鼻銑刀, 其特征在于, 所述第二加工面和第 三加工面的夹角范围为 12到 18度。
PCT/CN2017/101900 2017-09-06 2017-09-15 圆鼻铣刀 WO2019047262A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685671A (en) * 1993-11-01 1997-11-11 Smith International, Inc. Diamond or CBN fluted center cutting end mill
CN203679382U (zh) * 2013-11-14 2014-07-02 苏州万一刀具工业有限公司 一种二刃铝用圆鼻铣刀
CN206122778U (zh) * 2016-11-04 2017-04-26 广东振硕数控刀具有限公司 一种切削圆鼻铣刀

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685671A (en) * 1993-11-01 1997-11-11 Smith International, Inc. Diamond or CBN fluted center cutting end mill
CN203679382U (zh) * 2013-11-14 2014-07-02 苏州万一刀具工业有限公司 一种二刃铝用圆鼻铣刀
CN206122778U (zh) * 2016-11-04 2017-04-26 广东振硕数控刀具有限公司 一种切削圆鼻铣刀

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