KR920004236Y1 - Cutting tool - Google Patents

Cutting tool

Info

Publication number
KR920004236Y1
KR920004236Y1 KR2019900011854U KR900011854U KR920004236Y1 KR 920004236 Y1 KR920004236 Y1 KR 920004236Y1 KR 2019900011854 U KR2019900011854 U KR 2019900011854U KR 900011854 U KR900011854 U KR 900011854U KR 920004236 Y1 KR920004236 Y1 KR 920004236Y1
Authority
KR
South Korea
Prior art keywords
tip
cutting tool
cutting
inclination angle
tool
Prior art date
Application number
KR2019900011854U
Other languages
Korean (ko)
Other versions
KR920004097U (en
Inventor
김진기
Original Assignee
현대자동차 주식회사
전성원
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 현대자동차 주식회사, 전성원 filed Critical 현대자동차 주식회사
Priority to KR2019900011854U priority Critical patent/KR920004236Y1/en
Publication of KR920004097U publication Critical patent/KR920004097U/en
Application granted granted Critical
Publication of KR920004236Y1 publication Critical patent/KR920004236Y1/en

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Classifications

    • 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
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1009—Ball nose end mills
    • B23C5/1018—Ball nose end mills with permanently fixed cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/04—Angles
    • B23C2210/0407—Cutting angles
    • B23C2210/0442—Cutting angles positive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/40—Flutes, i.e. chip conveying grooves

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

Abstract

내용 없음.No content.

Description

공작기계용 절삭공구Cutting Tools for Machine Tools

제 1 도는 본 고안에 의한 절삭공구의 일부 확대 사시도.1 is a partially enlarged perspective view of a cutting tool according to the present invention.

제 2 도는 측면도.2nd side view.

제 3 도는 정면도.3rd degree front view.

제 4 도는 제 3 도의 A-A선 단면도.4 is a cross-sectional view taken along the line A-A of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 팁 11 : 포인트10: tip 11: points

12, 12' : 칩 안내홈 13, 13' : 절삭날12, 12 ': chip guide groove 13, 13': cutting edge

20 : 보디 21 : 고정홈20: body 21: fixed groove

22 : 칩 배출홈22: chip discharge groove

본 고안은 금형 모방 밀링 머어신(Copy Milling Machine)에 적용되는 공작기계용 절삭공구에 관한 것으로서, 특히 팁(Tip)의 구조를 개선하여 절삭저항을 최소화하고 공구의 수명을 연장할 수 있도록 한 공작기계용 절삭 공구에 관한 것이다.The present invention relates to a cutting tool for a machine tool applied to a copying milling machine (Mold Milling Machine), in particular, to improve the structure of the tip (Tip) to minimize the cutting resistance and to extend the life of the tool A cutting tool for machines.

잘아는 바와 같이, 모방 밀링 머어신은 요구되는 제품을 얻기 위하여 기초가 되는 금형을 만들고 그 금형에 따라 절삭공구가 자동적으로 절삭하는 모방장치를 갖춘 밀링머신으로서, 이에 사용되는 절삭공구는 대개 재질이 강인 보디에 초경합금의 팁을 은납 용접수단으로 고착하거나 또는 팁을 고정스크류로 고착하여 사용하고 있는데, 전자의 경우에는 대개 2개의 팁을 사용함으로서 팁의 끝단 즉 포인트 부분이 취약하여 진동이 있거나 노후된 밀링 머어신에 사용이 곤란하며, 후자의 경우에는 1개의 팁을 스크류로 고착함으로서 진구도(眞球道)가 불량하고 절삭 저항 증대로 진동이 심하게 발생하여 정밀 가공이 불가능하다는 문제점을 안고 있으며, 양자는 공통적으로 수명이 짧다는 폐단이 있었다.As you know, mimic milling machines are milling machines with imitation devices that make the underlying mold and automatically cut the cutting tool according to the mold. The tip of cemented carbide is fixed to the body by a silver solder welding means or the tip is fixed with a fixed screw. In the former case, two tips are used. In the latter case, it is difficult to use, and in the latter case, one tip is fixed with a screw, so that the precision of the spherical shape is poor and the vibration is severely generated due to the increase in the cutting resistance. There was a common shortage of life.

따라서 본 고안은 상기 문제점을 해결하기 위하여 팁의 구조를 개선하여 절삭효율을 증대시킴은 물론 절삭저항을 최소화하고 공구의 수명을 연장시킬 수 있도록 한 공작기계용 절삭공구를 제공하려는데 그 목적이 있는 것이다.Therefore, the present invention aims to provide a cutting tool for a machine tool that can improve cutting efficiency by improving the structure of the tip to solve the above problems, as well as to minimize cutting resistance and extend the life of the tool. .

이하, 본 고안의 구성을 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the configuration of the subject innovation in detail as follows.

선단 중앙으로 팁(10)이 고정되는 고정홈(21)이 형성되고 그 양측으로 칩 배출홈(22)이 형성된 보디(20)의 상기 고정홈(21)에 판상의 반원형 팁(10)이 은납용접 수단으로 고착되는 통상의 절삭공구에 있어서, 상기 팁(10)을 형성하되, 팁(10)의 선단 중앙 포인트(11)를 기점으로 양측에 소정의 경사각(θ)을 갖고 대향되게 형성되는 칩 안내홈(12) (12')을 형성하여 양 절삭날(13) (13') 대각선상으로 형성되게하고 상기 절삭날(13) (13')의 선단은 소정의 경사각(9)으로 연마하여 그 후측은 공작물이 가공부위의 간섭을 일으키지 않도록 경사지게 형성한 것이다.A plate-shaped semi-circular tip 10 is silvered in the fixing groove 21 of the body 20 in which the fixing groove 21 is formed at the center of the tip and the chip discharge groove 22 is formed at both sides thereof. In a conventional cutting tool that is fixed by welding means, the tip 10 is formed, but the chip is formed opposite to each other with a predetermined inclination angle θ at both sides starting from the tip center point 11 of the tip 10. Guide grooves 12 and 12 'are formed so that both cutting edges 13 and 13' are formed diagonally, and the tips of the cutting edges 13 and 13 'are polished at a predetermined inclination angle 9 The rear side is formed to be inclined so that the workpiece does not cause interference of the machining site.

상기에서 칩 안내홈(12) (12') 경사각 θ은 35-45°로 형성하는 것이 바람직하나 40°로 형성하는 것이 가장 바람직하며, 절삭날(13) (13')의 연마 경사각(9)은 6-8°로 하는 것이 좋으나 7°로 하는 것이 가장 바람직하다.The inclination angle θ of the chip guide grooves 12 and 12 'is preferably formed at 35-45 °, but most preferably at 40 °, and the polishing inclination angle 9 of the cutting edges 13 and 13'. It is preferable to set it to 6-8 degrees, but it is most preferable to set it to 7 degrees.

이와같이 구성된 본 고안의 절삭공구를 사용함에 있어서는 기존과 마찬가지로 보디(20)의 선단부를 밀링척에 물려 사용하게 되며, 팁(10)을 하나의 몸체로 형성하되, 양측의 절삭날(13) (13')을 연속적인 대각선으로 형성하였는바, 포인트(11)가 종래 보다 매우 강하게 됨으로써, 진동이 있거나 노후된 밀링머어신에 사용이 가능하며, 공구 수명이 연장된다.In using the cutting tool of the present invention configured as described above, the tip of the body 20 is used as a conventional milling chuck by using a cutting chuck, and the tip 10 is formed as a single body, and cutting edges 13 and 13 'on both sides are used. ) Is formed in a continuous diagonal line, so that the point 11 becomes much stronger than the conventional one, so that it can be used for vibration or old milling machines, and the tool life is extended.

또한, 칩 안내홈(12) (12')이 형성되어 칩의 배출이 용이함으로써 절삭 저항이 매우 작아 절삭 효율이 증대되는 등의 여러가지 효과를 기대할 수 있는 유용한 고안인 것이다.In addition, since the chip guide grooves 12 and 12 'are formed to facilitate the discharge of the chip, the cutting resistance is very small, which is a useful design to expect various effects such as an increase in cutting efficiency.

Claims (3)

선단 중앙으로 팁(10)이 고정되는 고정홈(21)이 형성되고 그 양측으로 칩 배출홈(22)이 형성된 보디(20)에 상기 고정홈(21)에 판상의 반원형 팁(10)이 은납 용접수단으로 고착되는 통상의 공작기계용 절삭공구에 있어서, 상기의 팁(10)을 하나의 몸체로 형성하되, 팁(10)의 선단 중앙 포인트(11)를 기점으로 양측면에 35-45°의 경사각(θ)을 갖고 대향되게 형성되는 칩 안내홈(12) (12')을 형성하여 양 절삭날(13) (13')이 대각 선상으로 형성되게 하고 상기 절삭날(13) (13')의 선단을 6-8°의 경사각(9)으로 연마하여, 그 후측은 공작물의 가공부위와 간섭을 일으키지 않도록 경사지게 형성하여 구성함을 특징으로 하는 공작기계용 절삭공구.The plate-shaped semi-circular tip 10 is silvered in the fixing groove 21 in the body 20 in which the fixing groove 21 is formed at the tip center and the chip discharge groove 22 is formed at both sides thereof. In a conventional cutting tool for fixing by welding means, the tip 10 is formed as a single body, and the tip 10 of the tip 10 is 35-45 ° on both sides starting from the center point 11 of the tip. The chip guide grooves 12 and 12 'are formed to face each other with an inclination angle θ so that both cutting edges 13 and 13' are formed diagonally and the cutting edges 13 and 13 'are formed. A cutting tool for a machine tool, characterized in that the tip is polished at an inclination angle of 6-8 °, and the rear side thereof is formed to be inclined so as not to interfere with the machining part of the workpiece. 제 1 항에 있어서, 팁(10)의 칩 안내홈(12) (12') 경사각(θ)을 40°로 형성함을 특징으로 하는 공작기계용 절삭공구.2. The cutting tool as set forth in claim 1, wherein the inclined angle [theta] of the chip guide groove (12) (12 ') of the tip (10) is formed at 40 degrees. 제 1 항에 있어서, 팁(10)의 절삭날(13) (13')의 경사각(9)을 7°로 형성함을 특징으로 하는 공작기계용 절삭공구.2. Cutting tool according to claim 1, characterized in that the inclination angle (9) of the cutting edges (13) (13 ') of the tip (10) is formed at 7 degrees.
KR2019900011854U 1990-08-06 1990-08-06 Cutting tool KR920004236Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900011854U KR920004236Y1 (en) 1990-08-06 1990-08-06 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900011854U KR920004236Y1 (en) 1990-08-06 1990-08-06 Cutting tool

Publications (2)

Publication Number Publication Date
KR920004097U KR920004097U (en) 1992-03-25
KR920004236Y1 true KR920004236Y1 (en) 1992-06-25

Family

ID=19301946

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900011854U KR920004236Y1 (en) 1990-08-06 1990-08-06 Cutting tool

Country Status (1)

Country Link
KR (1) KR920004236Y1 (en)

Also Published As

Publication number Publication date
KR920004097U (en) 1992-03-25

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