KR20140094692A - Chamfering cutting tool - Google Patents

Chamfering cutting tool Download PDF

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Publication number
KR20140094692A
KR20140094692A KR1020130006371A KR20130006371A KR20140094692A KR 20140094692 A KR20140094692 A KR 20140094692A KR 1020130006371 A KR1020130006371 A KR 1020130006371A KR 20130006371 A KR20130006371 A KR 20130006371A KR 20140094692 A KR20140094692 A KR 20140094692A
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KR
South Korea
Prior art keywords
cutting
shank
guide
cutting blade
hole
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Application number
KR1020130006371A
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Korean (ko)
Inventor
박극우
Original Assignee
태양파워(주)
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Priority to KR1020130006371A priority Critical patent/KR20140094692A/en
Publication of KR20140094692A publication Critical patent/KR20140094692A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/202—Plate-like cutting inserts with special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
    • B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/04—Overall shape
    • B23C2200/0477—Triangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2240/00—Details of connections of tools or workpieces
    • B23C2240/16—Welded connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2240/00—Details of connections of tools or workpieces
    • B23C2240/24—Connections using screws

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

Abstract

The present invention relates to a cutting tool for chamfering a hole and, more specifically, to a cutting tool for chamfering a hole capable of facilitating the replacement of a cutting blade and a guide by detachably integrating the cutting blade and the guide installed in the end of a shank of a cutting tool for chamfering a hole, and obtaining an economical effect by preventing the replacement of the whole shank. An insertion groove is formed by cutting the middle of the shank of a body. A through-hole penetrating the center of the body is formed to communicate with the insertion groove. The cutting blade is formed in one side of a cutting body formed of hard metal, and the guide is formed in the other side thereof to be lower than the cutting blade. A female screw part is formed on a connection part protruding from the underside of the cutting blade. A connection fixing bar is inserted into the through-hole of the body to couple a male screw part formed in the end of the connection fixing bar to the female screw part of the connection part by inserting the cutting body into the insertion groove of the shank; thereby coupling the cutting blade and the guide while the cutting blade and the guide protrude from the surface of the shank. Thus, the present invention can facilitate the replacement of the cutting blade and the guide by integrating the cutting blade and the guide with the cutting body, can obtain the economical effect by enabling the cutting body to be replaced without the replacement of the whole shank when the cutting blade and the guide are worn, and can remove a problem that the cutting body is loosened in use by firmly coupling the cutting body to the shank.

Description

구멍 면취용 절삭공구{CHAMFERING CUTTING TOOL}{CHAMFERING CUTTING TOOL}

본 발명은 구멍 면취용 절삭공구에 관한 것으로, 더욱 상세하게는 구멍을 면취하는 절삭공구의 생크 끝단에 각각 별도로 설치되는 절삭날과 가이드날을 일체로 형성하여 착탈할 수 있도록 하므로서 절삭날과 가이드날을 용이하게 교환할 수 있도록 한 구멍 면취용 절삭공구에 관한 것이다.More particularly, the present invention relates to a cutting tool for cutting a hole, and more particularly, to a cutting tool for cutting a hole, The present invention relates to a cutting tool for cutting a hole,

종래의 구멍 면취용 절삭공구는 생크끝에 절삭날을 교체형으로 형성하여 절삭날이 마모되면 이를 교체할 수 있도록 하였으나 절삭날이 흔들리는 등의 문제점이 있었다.The conventional cutting tool for cutting a hole has a cutting edge formed at a tip end of the shank so that the cutting edge can be replaced when the cutting edge is worn, but the cutting edge is shaken.

이를 감안하여 출원된 출원번호 10-1999-0010711 호는 절삭공구의 생크 끝에 있는 절삭부의 경사면에 삽입홈을 형성하여 그 삽입홈에 가이드날을 끼워 브레이징 용착으로 일체로 고정시키므로서 절삭날이 흔들리지 않고 정밀한 절삭작업이 이루어지도록 하였으나 이것은 가이드날을 생크끝에 브레이징 용착으로 일체로 고정시키므로서 일정기간 사용하면 절삭날은 교체 사용할 수 있으나 가이드날은 생크 끝에 일체로 용착 고정되어 있어 교체할 수 없으므로 생크 전체를 교체하게 되는 폐단이 있는 것이다. Taking this into consideration, Application No. 10-1999-0010711 proposes an insert groove formed in an inclined surface of a cutting portion at the shank end of a cutting tool, and a guide blade is inserted into the insert groove and is integrally fixed by brazing welding, Since the cutting edge is precisely cut, but the guide blade is fixed to the end of the shank by brazing, the cutting edge can be used for a certain period of time. However, since the guide blade is integrally welded and fixed at the end of the shank, There is a problem to be replaced.

또한, 절삭날을 절삭날 고정홈에 볼트로 고정시키므로서 사용중 진동에 의해 볼트의 풀림으로 절삭날이 유동되어 면취작업의 불량이 발생되는 폐단이 있는 것이다. In addition, since the cutting edge is fixed to the cutting edge fixing groove with a bolt, there is a closed edge where the cutting edge flows due to the release of the bolt due to the vibration during use, resulting in defective chamfering operation.

본 발명은 상기와 같은 점을 감안하여 초경합금으로 된 절삭체에 절삭날과 가이드를 일체로 형성하고 절삭체를 생크에 착탈할 수 있도록 하므로서 생크 전체를 교환하지 않고 절삭체만을 생크에서 분리하여 교체할 수 있도록 하고 절삭체가 생크에 결합시 견고하게 결합되도록 하기 위한 것이다.In view of the above, it is an object of the present invention to provide a cutting tool and a guide integrally formed on a cutting body made of a cemented carbide and detachably attaching the cutting body to the shank, so that only the cutting body is removed from the shank without replacing the entire shank And to securely engage the cutting body when it is engaged with the shank.

본 발명은 몸체의 생크 중간부를 절개하여 삽입홈을 형성하여 삽입홈과 연통되게 몸체의 중심을 관통하는 관통공을 형성하고, 초경합금으로 된 절삭체의 일측은 절삭날로 형성하고 타측은 절삭날보다 낮은 가이드로 형성하며 절삭체 저면에 돌출 형성된 연결부에 암나사부를 형성하여 절삭체를 생크의 삽입홈에 삽입하여 몸체의 관통공으로 연결고정대를 삽입 관통시켜 연결고정대 끝단의 숫나사부를 연결부의 암나사부와 결합시켜 절삭체의 절삭날과 가이드가 생크 표면보다 돌출되게 결합므로서 본 발명의 목적은 달성된다.According to the present invention, a shank middle portion of a body is cut to form an insertion groove to form a through hole passing through the center of the body so as to communicate with the insertion groove. One side of the cutting body made of cemented carbide is formed as a cutting edge, The cutting insert is inserted into the insert groove of the shank so that the joint fixing part is inserted through the through hole of the body so that the male thread part of the joint fixing part is engaged with the female thread part of the joint part. The object of the present invention is achieved because the cutting edge of the sieve and the guide are joined so as to protrude from the shank surface.

본 발명은 절삭날과 가이드를 절삭체에 일체로 형성하므로서 절삭날과 가이드의 착탈이 용이하고 절삭날과 가이드가 마모시 절삭체만을 교환하므로서 생크 전체를 교환하지 않게되어 경제적이며, 절삭체와 생크의 결합이 연결고정대로 견고하게 결합되어 사용시 진동에 의해 절삭날이 풀리는 등의 폐단을 제거한 효과가 있는 것이다. In the present invention, since the cutting edge and the guide are integrally formed on the cutting body, it is easy to attach and detach the cutting edge and the guide, and only the cutting body is replaced when the cutting edge and the guide are worn, And the joints are firmly coupled to the connecting fixture, thereby eliminating closure such as disengagement of the cutting edge due to vibration during use.

도1은 본 발명의 절삭날을 보인 사시도.
도2는 본 발명의 가이드를 보인 사시도.
도3은 본 발명의 분해사시도.
도4는 본 발명의 결합상태 단면도.
도5는 본 발명의 다른 실시예를 보인 분해사시도.
도6은 본 발명의 다른 실시예를 보인 결합상태 단면도.1 is a perspective view showing a cutting edge of the present invention.
2 is a perspective view showing the guide of the present invention;
3 is an exploded perspective view of the present invention.
4 is a cross-sectional view of an engaging state of the present invention.
5 is an exploded perspective view showing another embodiment of the present invention.
6 is a cross-sectional view of another embodiment of the present invention.

몸체(1)의 생크(2)중간부를 절개하여 삽입홈(4)을 형성하여 삽입홈(4)과 연통되게 몸체(1)의 중심을 관통하는 관통공(3)을 형성하고, 초경합금으로 된 절삭체(5)의 일측은 절삭날(6)로 형성하고 타측은 절삭날(6)보다 낮은 가이드(7)로 형성하며 절삭체(5)저면에 돌출 형성된 연결부(8)에 암나사부(8a)를 형성하여 절삭체(5)를 생크(2의 삽입홈(4)에 삽입하여 몸체(1)의 관통공(3)으로 연결고정대(9)를 삽입 관통시켜 연결고정대(9)끝단의 숫나사부(9a)를 연결부(8)의 암나사부(8a)와 결합시켜 절삭체(5)의 절삭날(6)과 가이드(7)가 생크(2)의 표면보다 돌출되게 결합시켜서 된 것이다.A through hole 3 penetrating the center of the body 1 is formed so as to communicate with the insertion groove 4 by forming the insertion groove 4 by cutting the middle portion of the shank 2 of the body 1, One side of the cutting body 5 is formed by a cutting edge 6 and the other side is formed by a guide 7 which is lower than the cutting edge 6 and a female thread portion 8a The cutter body 5 is inserted into the insertion groove 4 of the shank 2 and inserted into the through hole 3 of the body 1 through the connecting rod 9 so that the male screw And the cutting edge 6 of the cutting body 5 and the guide 7 are joined so as to protrude from the surface of the shank 2 by engaging the portion 9a with the female threaded portion 8a of the connecting portion 8. [

이와같이 된 본 발명은 생크(2)의 표면보다 약간 돌출된 가이드(7)는 생크(2)를 지지하여 절삭날(6)이 정확하게 절삭하도록 안내하게 되어 절삭 작업이 정확하게 이루어지게 된다.According to the present invention as described above, the guide 7 slightly protruding from the surface of the shank 2 supports the shank 2 and guides the cutting edge 6 to be precisely cut, so that the cutting operation can be accurately performed.

이와같은 가이드(7)는 절삭날(6)과 절삭체(5)에 일체로 형성되어 생크(2)에 형성된 삽입홈(4)에 삽입되어 몸체(1)에 관통된 연결고정대(9)로 고정되어 있어 절삭날(6)이 면취작업시 발생되는 진동에도 견고하게 결합되어 풀림이 방지되는 것이다.The guide 7 is integrally formed with the cutting edge 6 and the cutting body 5 and is inserted into the insertion groove 4 formed in the shank 2 and connected to the connecting fixture 9 penetrating the body 1 So that the cutting edge 6 is firmly coupled to the vibration generated during the chamfering operation, thereby preventing the cutting edge 6 from loosening.

이렇게 일정기간 사용후 절삭날(6)과 가이드(7)가 마모되면 몸체(1)에 관통되어 결합된 연결고정대(9)를 회전시켜 연결고정대(9)의 숫나사부(9a)를 절삭체(5)의 연결부(8)의 암나사부(8a)에서 해체하면 절삭체(5)가 생크(2)에서 분리되어 절삭체(5)만을 교체하면 되므로 생크(2) 전체를 교환하지 않게되므로 경제적인 효과가 있는 것이며, 상기와 같은 절삭체(5)에 형성된 가이드(7)는 절삭날로 형성시켜 절삭날을 양날로도 사용가능하며 초경합금 뿐만아니라 다이야 또는 하이스등의 여러 재질을 적용 사용할 수 있는 것이다.When the cutting edge 6 and the guide 7 are worn down after the use for a predetermined period of time, the male screw portion 9a of the connecting screw 9 is rotated by rotating the connecting screw 9 penetrating through the body 1, The cutting body 5 is separated from the shank 2 and only the cutting body 5 needs to be replaced so that the entire shank 2 is not exchanged. And the guide 7 formed on the cutting body 5 as described above can be formed as a cutting edge so that the cutting edge can be used with both blades and various materials such as die or highs as well as cemented carbide can be applied.

1: 몸체 2: 생크
3: 관통공 4: 삽입홈
5: 절삭체 6: 절삭날
7: 가이드 8: 연결부
8a:암나사부 9: 연결고정대
9a: 숫나사부 1: Body 2: Shank
3: Through hole 4: Insert groove
5: cutting body 6: cutting edge
7: Guide 8: Connection
8a: female thread part 9: connecting fixture
9a: male thread part

Claims (2)

몸체(1)의 생크(2) 중간부를 절개하여 삽입홈(4)을 형성하여 삽입홈(4)과 연통되게 몸체(1)의 중심을 관통하는 관통공(3)을 형성하고, 초경합금으로 된 절삭체(5)의 일측은 절삭날(6)로 형성하고 타측은 절삭날(6)보다 낮은 가이드(7)로 형성하며 절삭체(5)저면에 돌출 형성된 연결부(8)에 암나사부(8a)를 형성하여 절삭체(5)를 생크(2)의 삽입홈(4)에 삽입하여 몸체(1)의 관통공(3)으로 연결고정대(9)를 삽입 관통시켜 연결고정대(9)끝단의 숫나사부(9a)를 연결부(8)의 암나사부(8a)와 결합시켜 절삭체의 절삭날(6)과 가이드(7)가 생크(2) 표면보다 돌출되게 결합 된 것을 특징으로 하는 구멍 면취용 절삭공구.A through hole 3 penetrating the center of the body 1 is formed so as to communicate with the insertion groove 4 by forming the insertion groove 4 by cutting the middle portion of the shank 2 of the body 1, One side of the cutting body 5 is formed by a cutting edge 6 and the other side is formed by a guide 7 which is lower than the cutting edge 6 and a female thread portion 8a The cutter body 5 is inserted into the insertion groove 4 of the shank 2 to insert the connecting fixture 9 into the through hole 3 of the body 1, And the cutting edge 6 of the cutting body and the guide 7 are joined so as to protrude from the surface of the shank 2 by engaging the male threaded portion 9a with the female threaded portion 8a of the connecting portion 8. [ Cutting tool. 제1항에 있어서,
생크(2)에 형성된 삽입홈(4)에 일측이 절삭날(6)로 형성되고 타측이 가이드(7)로 형성된 절삭체(5)를 용접 고착시켜서 된 것을 특징으로 하는 구멍 면취용 절삭공구.

The method according to claim 1,
Characterized in that the cutting tool is formed by welding a cutting body (5) having one side formed with a cutting edge (6) and the other side formed with a guide (7) in an insertion groove (4) formed in the shank (2).

KR1020130006371A 2013-01-21 2013-01-21 Chamfering cutting tool KR20140094692A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109623043A (en) * 2017-10-09 2019-04-16 上海济可佳精密技术有限公司 The processing method of reversed chamfering
JP2021531178A (en) * 2018-08-16 2021-11-18 ハルトメタル−ウェルクゾーグファブリック ポール ホーン ゲゼルシャフト ミット ベシュレンクテル ハフツング Chamfering tool
CN114473072A (en) * 2022-02-25 2022-05-13 镇江市华星特种刀具制造有限公司 Chamfering device with spiral single-groove combined blade

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109623043A (en) * 2017-10-09 2019-04-16 上海济可佳精密技术有限公司 The processing method of reversed chamfering
JP2021531178A (en) * 2018-08-16 2021-11-18 ハルトメタル−ウェルクゾーグファブリック ポール ホーン ゲゼルシャフト ミット ベシュレンクテル ハフツング Chamfering tool
US11691207B2 (en) 2018-08-16 2023-07-04 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Chamfer tool
CN114473072A (en) * 2022-02-25 2022-05-13 镇江市华星特种刀具制造有限公司 Chamfering device with spiral single-groove combined blade

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