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KR100913411B1 - Cutter for chamfering - Google Patents

Cutter for chamfering Download PDF

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Publication number
KR100913411B1
KR100913411B1 KR1020080089433A KR20080089433A KR100913411B1 KR 100913411 B1 KR100913411 B1 KR 100913411B1 KR 1020080089433 A KR1020080089433 A KR 1020080089433A KR 20080089433 A KR20080089433 A KR 20080089433A KR 100913411 B1 KR100913411 B1 KR 100913411B1
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KR
South Korea
Prior art keywords
chamfering
blade
hole
chamfering cutter
cutting
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Application number
KR1020080089433A
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Korean (ko)
Inventor
김용범
Original Assignee
김용범
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41210101&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR100913411(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 김용범 filed Critical 김용범
Priority to JP2011523739A priority Critical patent/JP5514208B2/en
Priority to PCT/KR2009/004610 priority patent/WO2010021487A1/en
Priority to BRPI0912944A priority patent/BRPI0912944A2/en
Priority to CN2009801324096A priority patent/CN102131605B/en
Application granted granted Critical
Priority to TW098128195A priority patent/TWI408019B/en
Publication of KR100913411B1 publication Critical patent/KR100913411B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/12—Cutters specially designed for producing particular profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/08—Side or top views of the cutting edge
    • B23C2210/084—Curved cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/08—Side or top views of the cutting edge
    • B23C2210/088—Cutting edges with a wave form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/60—Roughing
    • B23C2220/605—Roughing and finishing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

A beveling cutter is provided to reduce the size of chip produced during work and discharge the chip immediately by forming a chip breaker on the cutting blade. A beveling cutter includes a through hole(10) and a plurality of cutting blades(20). A bolt passes through the through hole and is connected to the end of a rotary shaft. The cutting blades are formed in the shape of toothed wheel and arranged in the radial direction around the through hole. The cutting blade comprises a finish cutting blade(30) and a rough cutting blade(40) alternately arranged, wherein the finish and rough cutting blades include blade parts(32,42) formed on the end of rotating direction and concave arc surface parts(34,44).

Description

면취커터{CUTTER FOR CHAMFERING}Chamfering Cutter {CUTTER FOR CHAMFERING}

본 발명은 면취커터에 관한 것으로, 더욱 자세하게는 회전력을 이용한 면취기에 장착되는 면취커터에 관한 것이다.The present invention relates to a chamfering cutter, and more particularly to a chamfering cutter mounted on the chamfering machine using the rotational force.

공구나 공작물의 가장자리 또는 모서리를 깎아내서 사면 또는 둥그런 모양으로 만드는 가공을 면취작업(모따기 또는 모떼기, chamfering)이라고 하며, 이에 사용하는 기기를 면취기라고 한다.Chamfering (chamfering or chamfering) is a process in which the edges or corners of a tool or workpiece are cut into bevels or rounds, called chamfering.

다양한 방법으로 면취작업을 행하는 면취기가 있지만, 회전축의 끝에 장착된 면취커터를 회전시켜 가공하는 방법이 대표적이다.Although there are chamfering machines that perform chamfering operations in various ways, a typical method is to rotate a chamfering cutter mounted at the end of a rotating shaft.

이렇게 회전력을 이용하는 면취기의 경우에 면취작업 시 발생하는 칩(chip, 절삭분)이 문제가 된다. 작업 중에 발생한 칩이 길어지면 고속으로 회전하는 면취기에 감겨 작업이 어려워진다. 나아가 작은 칩들도 빠르게 배출시키지 않으면 작업시 절삭부하의 증가로 이어져, 작업이 힘들어질 뿐만 아니라 면취커터의 수명이 짧아지는 원인이 된다.In the case of the chamfering machine using the rotational force, chips (cutting chips) generated during chamfering work become a problem. If the chip generated during the operation is long, it is wound on a chamfer that rotates at high speed, which makes the operation difficult. Furthermore, if small chips are not discharged quickly, the cutting load may increase during the operation, which may cause the work to be difficult and shorten the life of the chamfering cutter.

따라서 면취작업 중 발생한 칩을 해결하기 위하여, 면취커터에 배출홈을 형성하는 등의 노력이 있어왔지만, 효과가 크지 못하였다.Therefore, in order to solve the chip generated during the chamfering work, efforts have been made to form the discharge groove in the chamfering cutter, but the effect was not great.

본 발명은 상기 문제점을 해결하기 위하여 발명된 것으로, 작업중 발생하는 칩의 처리능력을 향상시켜 절삭부하를 감소시킨 면취커터를 제공하는 것을 목적으로 한다. The present invention has been invented to solve the above problems, and an object of the present invention is to provide a chamfering cutter which reduces cutting load by improving the processing capacity of chips generated during operation.

상기의 목적을 달성하기 위하여 본 발명에 의한 면취커터는, 면취기의 회전축에 연결되어 회전하면서 물체의 모서리 등을 다듬는 면취커터에 있어서, 중심에 체결용 볼트가 관통하여 상기 회전축 끝과 연결되는 관통공이 형성되고; 상기 관통공을 중심으로 방사형으로 위치하는 복수 개의 절삭날이 일체로 형성된 톱니바퀴 모양이며; 상기 절삭날은 전체적으로 중심을 향하여 돌출된 형상으로, 회전방향의 끝부분에 형성된 날부와 오목한 호면을 이루고 있는 호면부를 포함하여 이루어지며; 상기 날부와 연결된 상기 호면부의 끝에 단면이 2단의 각도로 이루어진 칩브레이커가 형성된 것을 특징으로 한다. In order to achieve the above object, the chamfering cutter according to the present invention is connected to the rotating shaft of the chamfering machine to trim the corners of the object while rotating, through the fastening bolt penetrates in the center and is connected to the end of the rotating shaft A ball is formed; A gear shape in which a plurality of cutting edges radially positioned about the through hole are integrally formed; The cutting edge has a shape protruding toward the center as a whole, and comprises a blade portion formed at the end of the rotational direction and a concave arc surface portion; At the end of the arc surface portion connected to the blade portion is characterized in that the chip breaker is formed of an angle of two stages.

또한 본 발명에 의한 면취커터는, 면취기의 회전축에 연결되어 회전하면서 물체의 모서리 등을 다듬는 면취커터에 있어서, 중심에 체결용 볼트가 관통하여 상기 회전축 끝과 연결되는 관통공이 형성되고; 상기 관통공을 중심으로 방사형으로 위치하는 복수 개의 절삭날이 일체로 형성된 톱니바퀴 모양이며; 상기 절삭날은 전체적으로 중심을 향하여 돌출된 형상으로, 회전방향의 끝부분에 형성된 날부와 오목한 호면을 이루고 있는 호면부를 포함하여 이루어지되; 상기 절삭날은 상기 호면 부의 표면이 매끈한 정삭날과 상기 호면부의 표면이 거친 황삭날이 교번하여 위치하는 것을 특징으로 한다. 이때, 정삭날의 상기 날부와 연결된 상기 호면부의 끝에 단면이 2단의 각도로 이루어진 칩브레이커가 형성되는 것이 바람직하다.In addition, the chamfering cutter according to the present invention, in the chamfering cutter to be connected to the rotary shaft of the chamfering machine to trim the corners of the object, etc., a through-hole is connected to the end of the rotating shaft through the fastening bolt in the center; A gear shape in which a plurality of cutting edges radially positioned about the through hole are integrally formed; The cutting edge has a shape protruding toward the center as a whole, including a blade portion formed at the end of the rotation direction and a concave arc surface portion; The cutting edge is characterized in that the smooth grinding blade and the rough rough surface of the surface of the arc surface alternately located. At this time, it is preferable that a chip breaker having a cross section at an angle of two steps is formed at the end of the arc surface portion connected to the blade portion of the finishing blade.

나아가 관통공에는 체결용 볼트의 헤드가 걸리는 고정부가 형성되되, 이 고정부의 모양이 테이퍼진 형상인 것이 좋다.Furthermore, the through hole is provided with a fixing portion for catching the head of the fastening bolt, but the shape of the fixing portion is preferably a tapered shape.

본 발명에 따르면, 작업 중 발생하는 칩의 처리능력을 향상시킴으로써 절삭부하를 감소시키기 때문에, 면취작업이 쉽고, 작업속도가 향상되며, 면취커터의 수명이 증가하는 효과가 있다.According to the present invention, since the cutting load is reduced by improving the processing capacity of the chip generated during the operation, the chamfering operation is easy, the working speed is improved, and the life of the chamfering cutter is increased.

본 발명을 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일실시예에 따른 면취커터의 사시도이고, 도 2는 도 1에 도시된 면취커터의 정면도이고, 도 3은 도 2에 도시된 면취커터의 A-A'절단선에 대한 단면도이며, 도 4는 도 2에 도시된 면취커터의 배면도이다.1 is a perspective view of a chamfering cutter according to an embodiment of the present invention, Figure 2 is a front view of the chamfering cutter shown in Figure 1, Figure 3 is a cutting line of the chamfer cutter shown in Figure 2 4 is a cross-sectional view of the chamfering cutter shown in FIG.

도 1과 도 2에서 보이듯이, 본 발명의 면취커터는 중앙에 체결용 볼트가 관통하여 회전축에 체결되는 관통공(10)이 형성되어 있으며, 관통공(10) 주위에 방사형으로 복수 개의 절삭날(20)이 형성된 톱니바퀴모양을 이루고 있다. 이때, 절삭날(20)의 수는 4 내지 8개가 가능하며, 본 실시예에서는 6개이다.As shown in Figure 1 and 2, the chamfering cutter of the present invention has a through-hole 10 is formed in the center of the fastening bolt penetrated to the rotating shaft, a plurality of cutting edges radially around the through-hole 10 20 is formed in the shape of a cog wheel. At this time, the number of cutting edges 20 can be 4 to 8, in this embodiment is six.

도 1과 도 3에서 보이듯이, 각 절삭날(20)은 전체적으로 중심을 향하여 돌출된 형상이다.As shown in FIGS. 1 and 3, each cutting edge 20 has a shape protruding toward the center as a whole.

그리고 각 절삭날(20)은 회전방향의 끝에 형성되어 회전운동시 절삭작업을 수행하는 날부(32,42)와 이 날부(32,42)와 이어지며 오목한 호면을 이루고 있는 호면부(34,44)를 포함하여 이루어진다. 또한, 각 절삭날은 날부로부터 회전 반대방향으로 단면의 두께가 감소해서 다음 절삭날의 절삭부와 만나는 부분에서 가장 얇아지는 형상이다. 그리고 날부(32,42)는 지름에 대하여 회전방향으로 소정의 각도만큼 비스듬히 형성된다. Each of the cutting edges 20 is formed at the end of the rotational direction, and the blades 32 and 42 which perform the cutting operation during the rotational movement and the surface portions 34 and 44 which are connected to the blade portions 32 and 42 and form a concave arc surface. ) Further, each cutting edge has a shape where the thickness of the cross section decreases in the direction opposite to the rotation from the blade portion and becomes thinnest at the portion where it meets the cutting portion of the next cutting edge. The blades 32 and 42 are formed obliquely by a predetermined angle in the rotational direction with respect to the diameter.

이러한 절삭날(20)은 호면부(34,44)의 가공형태에 따라 정삭날(30)과 황삭날(40)로 구분되며, 두 종류의 절삭날(30,40)이 교번으로 위치한다. 정삭날(30)은 호면부(34)가 매끈하게 가공되어 정삭을 실시하는 부분이고, 황삭날(40)은 호면부(44)가 거칠게 가공되어 황삭을 실시하는 부분이다.The cutting edge 20 is divided into the finishing blade 30 and the roughing blade 40 according to the processing form of the surface portion 34, 44, two kinds of cutting edge (30, 40) are alternately located. The finishing blade 30 is a portion in which the surface portion 34 is smoothly processed to finish, and the roughing blade 40 is a portion in which the surface portion 44 is roughly processed to rough.

도 5는 도 2에 도시된 면취커터의 B-B'절단선에 대한 단면도이다. 날부(32)와 연결되는 호면부(34)의 끝부분에는 단면을 2단의 각도로 처리한 칩브레이커(36)가 형성된다. 이 칩브레이커(36)는 날부(32)와 연결된 부분에 전체적인 호면부(34)의 단면 각도보다 각도가 작은 부분을 형성한 것이다. 이러한 모양의 칩브레이커(36)를 형성하는 경우 면취작업 중 발생하는 칩의 크기가 작아지며, 발생한 칩이 바로 배출되기 때문에 절삭부하가 30%정도 감소하는 효과가 있다.5 is a cross-sectional view taken along the line B-B 'of the chamfering cutter shown in FIG. At the end of the arc surface portion 34 connected to the blade portion 32 is formed a chip breaker 36 having a cross section processed at an angle of two stages. The chipbreaker 36 is formed at a portion connected to the blade portion 32 at an angle smaller than the cross-sectional angle of the entire arc surface portion 34. In the case of forming the chipbreaker 36 having such a shape, the size of the chip generated during the chamfering operation is reduced, and since the generated chip is immediately discharged, the cutting load is reduced by about 30%.

도 6은 도 3에서 'C'로 표시한 황삭날 호면부 단면의 다양한 모양을 나타내는 도면이다. 그림에서 표시된 것과 같이 다양한 단면을 갖는 황삭날(40)에서는 정삭과 같은 정밀한 작업은 못하지만 면취작업 중에 발생하는 칩의 크기가 작으며, 절삭부하가 훨씬 적게 걸린다.FIG. 6 is a view illustrating various shapes of the rough blade surface portion cross section denoted by 'C' in FIG. 3. In the roughing blade 40 having various cross sections as shown in the figure, it is not precise work such as finishing, but the chip size generated during the chamfering operation is small, and the cutting load is much smaller.

따라서 본 실시예와 같이 칩브레이커(36)가 형성된 정삭날(30)과 황삭날(40)이 교번으로 위치하는 면취커터를 사용하면 일반적인 면취커터에 비하여 절삭부하가 60%정도 감소하는 뛰어난 효과가 있다.Therefore, when using the chamfering cutter in which the finishing blade 30 and the roughing blade 40 in which the chip breaker 36 is formed are alternately positioned as in this embodiment, the cutting load is reduced by about 60% compared to the general chamfering cutter. have.

나아가 본 발명의 면취커터는 관통공(10)에 형성되어 체결용 볼트의 헤드가 걸리는 부분인 고정부(12)의 단면이 직각으로 단턱진 형상이 아니라, 지름이 점점 줄어드는 테이퍼진 형상이다. Furthermore, the chamfering cutter of the present invention is formed in the through hole 10, the cross section of the fixing portion 12, which is the portion of the head of the fastening bolt is caught in a right angle, not tapered shape is gradually reduced in diameter.

종래의 단턱진 형상의 고정부를 갖는 경우, 체결용 볼트의 헤드가 고정부에 골고루 접하지 못하여 볼트 고정 시에 고정하는 힘이 약했다. 이를 해결하기 위하여 와셔를 사용해야만 했으나, 이 경우도 완전한 해결책은 아니었다.In the case of having a conventional stepped fixing part, the head of the fastening bolt was not evenly contacted with the fixing part, and the force to fix the bolt at the time of fixing the bolt was weak. A washer had to be used to solve this problem, but this was not a complete solution.

반면에 본 발명과 같이 테이퍼진 형상의 고정부(12)를 갖는 경우, 체결용 볼트의 헤드를 고정부(12)에 대응되는 형상으로 제작하면 접촉면적이 크게 증가하여 볼트 고정 시에 고정하는 힘이 크게 증가된다. On the other hand, in the case of having the tapered shape fixing part 12 as in the present invention, if the head of the fastening bolt is manufactured in a shape corresponding to the fixing part 12, the contact area is greatly increased to fix the bolt when fixing the bolt. This is greatly increased.

이상에서는 본 발명을 특정의 바람직한 실시예에 대해서 도시하고 설명하였다. 그러나 본 발명은 상술한 실시예에만 국한되는 것은 아니며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명의 기술적 사상을 벗어남이 없이 얼마든지 다양하게 변경 실시할 수 있을 것이다. 따라서 본 발명의 권리범위는 특정 실시예에 한정되는 것이 아니라, 첨부된 특허청구범위에 의해 정해지는 것으로 해석되어야 할 것이다.In the above, the present invention has been shown and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiment, and those skilled in the art to which the present invention pertains can make various changes without departing from the technical spirit of the present invention. Therefore, the scope of the present invention should not be limited to the specific embodiments, but should be construed as defined by the appended claims.

도 1은 본 발명의 일실시예에 따른 면취커터의 사시도이다.1 is a perspective view of a chamfering cutter according to an embodiment of the present invention.

도 2는 도 1에 도시된 면취커터의 정면도이다.2 is a front view of the chamfering cutter shown in FIG.

도 3은 도 2에 도시된 면취커터의 A-A'절단선에 대한 단면도이다.3 is a cross-sectional view taken along the line AA ′ of the chamfering cutter shown in FIG. 2.

도 4는 도 2에 도시된 면취커터의 배면도이다.4 is a rear view of the chamfering cutter shown in FIG.

도 5는 도 2에 도시된 면취커터의 B-B'절단선에 대한 단면도이다.5 is a cross-sectional view taken along the line B-B 'of the chamfering cutter shown in FIG.

도 6은 도 3에서 'C'로 표시한 황삭날 호면부 단면의 다양한 모양을 나타내는 도면이다.FIG. 6 is a view illustrating various shapes of the rough blade surface portion cross section denoted by 'C' in FIG. 3.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

10: 관통공 12: 고정부10: through hole 12: fixed part

20: 절삭날 30: 정삭날20: cutting edge 30: finishing edge

40: 황삭날 32,42: 날부40: roughing edge 32, 42: blade

34,44: 호면부 36: 칩브레이커34,44: surface part 36: chipbreaker

Claims (4)

삭제delete 면취기의 회전축에 연결되어 회전하면서 물체의 모서리 등을 다듬는 면취커터에 있어서,In the chamfering cutter that is connected to the rotary axis of the chamfering machine to rotate the edge of the object, 중심에 체결용 볼트가 관통하여 상기 회전축 끝과 연결되는 관통공이 형성되고; A through hole connected to the end of the rotating shaft by a fastening bolt penetrating at a center thereof; 상기 관통공을 중심으로 방사형으로 위치하는 복수 개의 절삭날이 일체로 형성된 톱니바퀴 모양이며;A gear shape in which a plurality of cutting edges radially positioned about the through hole are integrally formed; 상기 절삭날은 전체적으로 중심을 향하여 돌출된 형상으로, 회전방향의 끝부분에 형성된 날부와 오목한 호면을 이루고 있는 호면부를 포함하여 이루어지되;The cutting edge has a shape protruding toward the center as a whole, including a blade portion formed at the end of the rotation direction and a concave arc surface portion; 상기 절삭날은 상기 호면부의 표면이 매끈한 정삭날과 상기 호면부의 표면이 거친 황삭날이 교번하여 위치하는 것을 특징으로 하는 면취커터.The cutting edge is a chamfering cutter, characterized in that the smooth grinding blade and the rough rough surface of the surface of the arc surface alternately positioned. 제2항에 있어서,The method of claim 2, 상기 정삭날의 상기 날부와 연결된 상기 호면부의 끝에 단면이 2단의 각도로 이루어진 칩브레이커가 형성된 것을 특징으로 하는 면취커터.Chamfering cutter, characterized in that the chip breaker is formed at the end of the arc surface portion connected to the blade portion of the finishing blade made of an angle of two stages. 제2항 또는 제3항에 있어서,The method according to claim 2 or 3, 상기 관통공에 상기 체결용 볼트의 헤드가 걸리는 고정부가 형성되며, 상기 고정부의 모양이 테이퍼진 형상인 것을 특징으로 하는 면취커터.Chamfering cutter, characterized in that the fixing portion is fastened to the through-hole of the head of the fastening bolt, the shape of the fixing portion is tapered.
KR1020080089433A 2008-08-21 2008-09-10 Cutter for chamfering KR100913411B1 (en)

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JP2011523739A JP5514208B2 (en) 2008-08-21 2009-08-19 Chamfer cutter
PCT/KR2009/004610 WO2010021487A1 (en) 2008-08-21 2009-08-19 Cutter for chamfering
BRPI0912944A BRPI0912944A2 (en) 2008-08-21 2009-08-19 chamfer cutter
CN2009801324096A CN102131605B (en) 2008-08-21 2009-08-19 Cutter for milling
TW098128195A TWI408019B (en) 2008-08-21 2009-08-21 Cutter for chamfering

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BRPI0912944A2 (en) 2018-02-06
CN102131605A (en) 2011-07-20
JP5514208B2 (en) 2014-06-04
WO2010021487A1 (en) 2010-02-25
JP2012500129A (en) 2012-01-05
CN102131605B (en) 2013-07-24
TW201016357A (en) 2010-05-01

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