WO2020149533A1 - Anti-vibration drill - Google Patents

Anti-vibration drill Download PDF

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Publication number
WO2020149533A1
WO2020149533A1 PCT/KR2019/017421 KR2019017421W WO2020149533A1 WO 2020149533 A1 WO2020149533 A1 WO 2020149533A1 KR 2019017421 W KR2019017421 W KR 2019017421W WO 2020149533 A1 WO2020149533 A1 WO 2020149533A1
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WO
WIPO (PCT)
Prior art keywords
drill
vibration
insert
center axis
guides
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PCT/KR2019/017421
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French (fr)
Korean (ko)
Inventor
이재화
데잔니키토빅
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이재화
데잔니키토빅
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Publication of WO2020149533A1 publication Critical patent/WO2020149533A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/0054—Drill guiding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/12—Adapters for drills or chucks; Tapered sleeves
    • B23B51/126—Tool elongating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/50—Drilling tools comprising cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/70—Drills with vibration suppressing means

Definitions

  • the present invention relates to a drill for preventing vibration.
  • the drill is primarily a tool used to make circular holes or drive stators, and is fixed by a chuck depending on the application and fitted to a bit or screwdriver.
  • Drills are commonly used for wood work, metal work, machine tool making, construction and utility projects, and specially designed versions are made for pharmaceutical, space and miniature applications.
  • 1A and 1B show that the insert drill 100 processes the material 200.
  • 1A shows that the inner insert 12a for machining the inside of the machining hole 201 of the material 200 is fixed to the body 11 by the inner insert cartridge 13a and the chip processed by the inner insert 12a flutes.
  • the structure discharged by 14a is shown.
  • Figure 1b is rotated 180 degrees to the state of Figure 1a, the outer insert 12b for processing the outer side of the machining hole 201 of the material 200 is fixed to the body 11 by the outer insert cartridge 13b and the outer insert The structure in which the chip processed by (12b) is discharged by the flute (14b) is shown.
  • the inner insert 12a and the outer insert 12b for processing the material are manufactured asymmetrically, resulting in more resistance to the outer insert and, accordingly, the rigidity of the drill body. If it is not sufficient, vibration occurs during drilling due to the elasticity of the drill body, and an insert breaks due to the vibration.
  • the drill body When the tip of the outer insert 12b is broken and the size of the hole to be machined becomes small, the drill body may be stuck in the machining hole and pinched. In severe cases, the drill cannot be pulled out of the hole and the material and the drill must be disposed of simultaneously. Can occur.
  • the shape of the drill insert is made into a wave shape to match the left and right machining balance, or by inserting a pilot drill (figure number 15 in FIG. 3A) in the middle of the insert, the pilot drill acts as a support shaft There are attempts to suppress vibration.
  • the present invention is intended to suppress the occurrence of vibration during the drilling process by additionally installing a vibration preventing portion in the form of an insert that rotates in contact with the inner surface of the hole being processed.
  • the present invention is a drill body 11 including a drill central axis passing through the center of the drill; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; And first and second anti-vibration parts 17a and 17b symmetrically installed around the drill central axis at the rear of each of the inner insert 12a and the outer insert 12b, and the inner insert 12a and
  • the plane on which the first anti-vibration portion 17a is placed and the plane on which the outer insert 12b and the second anti-vibration portion 17b are placed are related to a vibration-proof drill that is a plane parallel to the center axis of the drill.
  • each of the first and second anti-vibration parts 17a and 17b has one side part 17aa and 17ba installed parallel to the center axis of the drill and contacts the inner surface 201a of the hole formed during drilling.
  • the inner surfaces of the first and second anti-vibration parts 17a and 17b may be cut by one side parts 17aa and 17ba.
  • the first and second anti-vibration parts 17a and 17b are rectangular inserts, and are installed on the body 11 and include a plurality of vibrations including a cylindrical body extending radially around the center axis of the drill.
  • the prevention guides 41 and 42 are further included, and the plurality of anti-vibration guides may be disposed symmetrically with respect to the center axis of the drill.
  • the anti-vibration guide further includes, the plurality of anti-vibration guides installed on the connection ring are arranged in a symmetrical state around the center axis of the drill, each of the plurality of anti-vibration guides is fixed to the connection ring and drill center It may include a cylindrical body extending in the radial direction with respect to the axis and the same contact surface as the shape of the inner surface 201a of the hole formed during drilling.
  • the present invention is a drill body 11 including a drill central axis passing through the center of the drill; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; And a plurality of anti-vibration guides of carbide material comprising a cylindrical body installed in the body 11 and a contact surface that is the same as the shape of the inner surface 201a of the hole formed during drilling, extending radially around the center axis of the drill , 42), the inner insert (12a) and the outer insert (12b) is symmetrical about the drill axis and asymmetrically positioned with respect to each other about the center of the drill in the plane in opposite directions, the plurality of anti-vibration guides Is related to a drill for preventing vibration, characterized in that arranged in a symmetrical state on the center axis of the drill.
  • the plurality of anti-vibration guides installed on the connecting ring are disposed in a symmetrical state around the central axis of the drill
  • each of the plurality of anti-vibration guides installed on the connection ring May include a cylindrical body fixed to the connecting ring and extending radially with respect to the drill central axis, and a contact surface identical to the shape of the inner surface 201a of the hole formed during drilling.
  • the present invention is a drill body 11 including a drill central axis passing through the center of the drill; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; An extension bar 30 for extending the drill in the longitudinal direction; A connecting ring 20 for connecting the body 11 and the extension bar 30; And a plurality of anti-vibration guides made of a carbide material installed symmetrically about a drill central axis on the connecting ring 20, wherein the inner insert 12a and the outer insert 12b are symmetrical about the drill axis.
  • a cylindrical body and a drill which are located asymmetrically about a drill central axis in a plane opposite to each other, and each of the plurality of anti-vibration guides installed in the connecting ring is fixed to the connecting ring and extends radially with respect to the drill central axis It relates to a drill for preventing vibration characterized in that it comprises a contact surface that is the same as the shape of the inner surface (201a) of the hole formed during processing.
  • the vibration preventing portion can be further installed on the drill body to suppress vibration during drilling.
  • 1A is a plan view of a conventional insert drill.
  • FIG. 1B is a view of FIG. 1A rotated 180 degrees.
  • FIG. 2A is a plan view of a drill to which an anti-vibration part 17a, which is a characteristic of the present invention, is added.
  • FIG. 2B is a view of FIG. 2A rotated 180 degrees.
  • 3A is a perspective view of another type of conventional drill.
  • FIG. 3B is a plan view of a 3A drill
  • FIG. 3C is a view in which FIG. 3B is rotated 180 degrees.
  • Figure 4a is a perspective view of a drill applying the features of the present invention to the conventional drill of Figure 3a.
  • FIG. 4B is a plan view of the drill of FIG. 4A
  • FIG. 4C is a view of FIG. 4B rotated 180 degrees.
  • FIG. 5A is a plan view of another type of conventional drill, and FIG. 5B is a view of FIG. 5A rotated 180 degrees.
  • FIGS. 5A and 5B are views of a drill to which the present invention features are applied to the conventional drills of FIGS. 5A and 5B.
  • FIG. 1A is a plan view of a conventional insert drill and FIG. 1B is a view of FIG. 1A rotated 180 degrees.
  • the drill 100 includes a body 11, and an inner insert 12a and an outer insert 12b, which are cutting portions for forming a machining hole 201 in the material 200, are installed at an end of the body.
  • Chips of the material formed by the inner insert 12a and the outer insert 12b by drilling are discharged through the flutes 14a, 14b.
  • the inner insert 12a is mounted on the inner insert cartridge 13a and fixed to the body 11, and likewise the outer insert 12b is mounted on the outer insert cartridge 13b and fixed to the body 11.
  • the inner insert 12a and the outer insert 12b are installed asymmetrically with respect to the body, in particular, the center axis of the drill passing through the center of the drill, thereby causing vibration during drilling. Occurs.
  • FIG. 2A and 2B are diagrams of a drill to which vibration preventing parts 17a and 17b, which are the features of the present invention, are added, and FIG. 2B is a view of rotating FIG. 2A by 180 degrees.
  • the first and second anti-vibration parts 17a and 17b are installed at the rear of each of the inner insert 12a and the outer insert 12b, and the first and second anti-vibration Each side portion 17aa, 17ba of each of the portions 17a, 17b comes into contact with the inner surface 201a of the machining hole during drilling.
  • first and second anti-vibration parts 17a and 17b are installed symmetrically around an axis (drill center axis) penetrating the drill body, and the first and second anti-vibration parts 17a and 17b )
  • One side (17aa, 17bb) of the drill center axis is parallel, the inner insert (12a) and the first anti-vibration portion (17a) are present together in a plane parallel to the drill central axis and likewise the outer insert (12b)
  • the second anti-vibration part 17b are present together in a plane parallel to the center axis of the drill.
  • the inner insert 12a and the outer insert 12b form a machining hole 201 and the drill proceeds, and the first and second vibrations installed behind the inner insert 12a and the outer insert 12b
  • the side portions of the prevention portions 17a and 17b progress while being in parallel contact with the inner surface 201a of the formed processing hole 201 and can reduce vibration generated in the drill during drilling.
  • the first and second anti-vibration parts 17a and 17b have a shape of an insert for processing, and the side parts 17a and 17b that are in parallel contact with the inner surface 201a along the processing hole while cutting the inner surface 201 You can proceed.
  • FIG. 3A is another perspective view of a conventional drill
  • FIG. 3B is a plan view of a 3A drill
  • FIG. 3C is a view in which FIG. 3B is rotated 180 degrees.
  • the drill 100 of FIGS. 3A to 3C further includes an extension bar 30 and a ring 20 connecting the body 11 and the extension bar 30.
  • 4A to 4C further include anti-vibration guides 41, 42, 51, 52, 53, and 54 in the conventional drill of FIG. 3A, and the anti-vibration guide is an inner surface of a machining hole 201 formed in a material. It becomes in contact with (201a) and suppresses the occurrence of vibration by contacting the inner surface during drilling.
  • the cylindrical shape is extended in the radial direction around the center axis of the drill and is installed on the first and second anti-vibration guides 41 and 42 and the third connection ring 20 installed on the body 11 To the sixth anti-vibration guides 51, 52, 53 and 54 are shown.
  • the first and second anti-vibration guides installed on the body and the third to sixth anti-vibration guides installed on the ring extend radially around the longitudinal axis of the drill and have a symmetrical structure.
  • the first to sixth anti-vibration guides have the same shape and the material is carbide.
  • the anti-vibration guide includes a cylindrical guide body 54a and a contact surface 54b having an outer surface in contact with the inner surface 201a of the cylindrical machining hole, as described in reference numeral 54.
  • the contact surface 54b forms the same curved surface as the inner surface 201a of the machining hole.
  • Figure 5a is a plan view of another type of conventional drill further includes a piler drill 15 compared to the drill of Figure 3a.
  • FIG. 5B is a view of FIG. 5A rotated 180 degrees.
  • FIGS. 6A and 6B are drawings of a drill to which the features of the present invention are applied to the conventional drills of FIGS. 5A and 5B, as shown in FIGS. 2A and 2B, including vibration preventing parts 17a and 17b, and the vibration preventing part being in the form of a cutting insert It is preferred.

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

Abstract

The present invention relates to an anti-vibration drill comprising: a drill body (11); a cutting part installed at the tip of the drill body; and a plurality of vibration preventing parts installed at the rear of the cutting part, wherein the plurality of vibration preventing parts are disposed symmetrically with respect to the longitudinal axis of the drill body (11).

Description

진동 방지용 드릴Vibration-proof drill
본 발명은 진동 방지용 드릴에 관한 것이다.The present invention relates to a drill for preventing vibration.
드릴은 주로 원형 홀 또는 구동 고정자를 만들기 위해 사용되는 공구이고 적용 분야에 따라 척에 의해 고정되기도 하고, 비트 또는 드라이버에 맞추어진다.The drill is primarily a tool used to make circular holes or drive stators, and is fixed by a chuck depending on the application and fitted to a bit or screwdriver.
드릴은 일반적으로 목재 작업, 금속 작업, 기계 공구 제작, 건설 및 유틸리티 프로젝트에 사용되며 특별히 설계된 버전은 의약품, 공간 및 미니어처 용도에 맞게 만들어진다.Drills are commonly used for wood work, metal work, machine tool making, construction and utility projects, and specially designed versions are made for pharmaceutical, space and miniature applications.
도 1a 및 도 1b에는 인서트 드릴(100)이 소재(200)를 가공하는 것을 도시하고 있다.1A and 1B show that the insert drill 100 processes the material 200.
도 1a는 소재(200)의 가공홀(201) 내측을 가공하는 내측 인서트(12a)가 내측 인서트 카트리지(13a)에 의해 몸체(11)에 고정되고 내측 인서트(12a)에 의해 가공된 칩이 플루트(14a)에 의해 배출되는 구조를 도시한다. 1A shows that the inner insert 12a for machining the inside of the machining hole 201 of the material 200 is fixed to the body 11 by the inner insert cartridge 13a and the chip processed by the inner insert 12a flutes. The structure discharged by 14a is shown.
도 1b는 도 1a의 상태를 180도 회전한 것으로 소재(200)의 가공홀(201) 외측을 가공하는 외측 인서트(12b)가 외측 인서트 카트리지(13b)에 의해 몸체(11)에 고정되고 외측 인서트(12b)에 의해 가공된 칩이 플루트(14b)에 의해 배출되는 구조를 도시하고 있다.Figure 1b is rotated 180 degrees to the state of Figure 1a, the outer insert 12b for processing the outer side of the machining hole 201 of the material 200 is fixed to the body 11 by the outer insert cartridge 13b and the outer insert The structure in which the chip processed by (12b) is discharged by the flute (14b) is shown.
도 1a 및 도 1b에서 알수 있는 것과 같이 인서트 드릴에서는 소재를 가공하는 내측 인서트(12a)와 외측 인서트(12b)가 좌우 비대칭으로 제작되어 외측 인서트에 보다 많은 저항이 발생하고 이에 따라 드릴 몸체의 강성이 충분치 못할 경우 드릴 몸체의 탄성에 의해 드릴 작업시 진동이 발생하고 상기 진동으로 인해 인서트가 깨지는 문제점이 발생한다.As can be seen in FIGS. 1A and 1B, in the insert drill, the inner insert 12a and the outer insert 12b for processing the material are manufactured asymmetrically, resulting in more resistance to the outer insert and, accordingly, the rigidity of the drill body. If it is not sufficient, vibration occurs during drilling due to the elasticity of the drill body, and an insert breaks due to the vibration.
이러한 이유로 최대 7D (드릴 외경 대비 홀 깊이) 이상의 깊이를 가공하는 것이 불가능하며 또한 외측 인서트(12b)의 끝부분 팁이 부러질 경우, 가공되는 홀(201)이 작아질 수 있다. For this reason, it is impossible to process a depth of up to 7D (hole depth relative to the drill outer diameter), and when the tip of the outer insert 12b is broken, the hole 201 to be processed may be small.
외측 인서트(12b)의 팁 끝부분이 부러져서 가공되는 홀의 크기가 작아지면 드릴 몸체가 가공 홀에 교착되어 끼일 수 있고, 심할 경우 홀에 박혀서 드릴을 꺼내지 못하고 소재와 드릴을 동시에 폐기 처분해야 하는 상황이 발생할 수 있다. When the tip of the outer insert 12b is broken and the size of the hole to be machined becomes small, the drill body may be stuck in the machining hole and pinched. In severe cases, the drill cannot be pulled out of the hole and the material and the drill must be disposed of simultaneously. Can occur.
좌우 비대칭에 의한 진동을 완화 시키기 위하여, 드릴 인서트의 모양을 파도형으로 만들어서 좌우 가공밸런스를 맞추거나, 인서트 중간에 파일럿 드릴(도 3a의 도면 번호 15)을 삽입하여 파일럿 드릴이 지지축 역할을 하여 진동을 억제하는 시도가 있다.In order to alleviate the vibration caused by left and right asymmetry, the shape of the drill insert is made into a wave shape to match the left and right machining balance, or by inserting a pilot drill (figure number 15 in FIG. 3A) in the middle of the insert, the pilot drill acts as a support shaft There are attempts to suppress vibration.
그러나, 인서트의 모형을 변형시킨 경우 진동 발생이 감소한 것은 사실이나 완전히 억제하지는 못하고 있으며 파일럿 드릴 자체도 쉽게 부러지며 소재에 박히는 문제점이 발생한다.However, when the model of the insert is deformed, it is true that the occurrence of vibration is reduced, but it is not completely suppressed, and the pilot drill itself is easily broken, and a problem occurs in the material.
한국 공개 특허 제10-2010-0055971호 및 공개 특허 제10-2010-0091000호에도 인서트를 설치한 드릴이 공개되어 있으나, 작업중 진동을 억제하고자 하는 문제를 해결하고 있지는 않다.In Korea Patent Publication No. 10-2010-0055971 and Patent Publication No. 10-2010-0091000, drills with inserts are disclosed, but this does not solve the problem of suppressing vibration during operation.
본 발명에서는 가공되는 홀의 내면에 접하며 회전하는 인서트 형태의 진동 방지부를 드릴 몸체에 추가로 설치하여 드릴 가공중 진동 발생을 억제 하고자 한다.In the present invention, it is intended to suppress the occurrence of vibration during the drilling process by additionally installing a vibration preventing portion in the form of an insert that rotates in contact with the inner surface of the hole being processed.
또한, 본 발명에서는 가공되는 홀의 내면에 접하며 회전하는 카바이드 소재의 가이드를 드릴 몸체 또는 연결 링에 추가로 장착하여 진동 발생을 억제하고자 한다.In addition, in the present invention, to prevent the occurrence of vibration by additionally mounting a guide of a carbide material that rotates in contact with the inner surface of the hole to be processed on the drill body or the connecting ring.
본 발명은 드릴의 중심을 관통하는 드릴 중심 축을 포함하는 드릴 몸체(11); 드릴 작업시 홀의 안쪽을 가공하는 내측 인서트(12a) 및 홀의 바깥쪽을 가공하는 외측 인서트(12b)를 포함하는 절삭부; 및 상기 내측 인서트(12a)와 외측 인서트(12b) 각각의 후방에 드릴 중심축을 중심으로 대칭으로 설치되는 제1 및 제2 진동 방지부(17a, 17b)를 포함하고, 상기 내측 인서트(12a)와 제1 진동 방지부(17a)가 놓여지는 평면과 상기 외측 인서트(12b)와 제2 진동 방지부(17b)가 놓여지는 평면은 드릴 중심 축에 나란한 평면인 진동 방지용 드릴에 관한 것이다.The present invention is a drill body 11 including a drill central axis passing through the center of the drill; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; And first and second anti-vibration parts 17a and 17b symmetrically installed around the drill central axis at the rear of each of the inner insert 12a and the outer insert 12b, and the inner insert 12a and The plane on which the first anti-vibration portion 17a is placed and the plane on which the outer insert 12b and the second anti-vibration portion 17b are placed are related to a vibration-proof drill that is a plane parallel to the center axis of the drill.
또한, 본 발명에서 상기 제1 및 제2 진동 방지부(17a, 17b) 각각의 일측부(17aa, 17ba)는 드릴 중심축과 나란하게 설치되며 드릴 가공시 형성되는 홀의 내면(201a)과 접촉하고, 상기 제1 및 제2 진동 방지부(17a, 17b)의 일측부(17aa, 17ba)에 의해 상기 내면이 깍여질 수 있다.In addition, in the present invention, each of the first and second anti-vibration parts 17a and 17b has one side part 17aa and 17ba installed parallel to the center axis of the drill and contacts the inner surface 201a of the hole formed during drilling. , The inner surfaces of the first and second anti-vibration parts 17a and 17b may be cut by one side parts 17aa and 17ba.
또한, 본 발명에서 상기 제1 및 제2 진동 방지부(17a, 17b)는 사각형 인서트이고, 상기 몸체(11)에 설치되며 드릴 중심축을 중심으로 방사방향으로 연장하는 원통형 몸체를 포함하는 복수의 진동 방지 가이드(41, 42)를 추가로 포함하고, 상기 복수의 진동 방지 가이드는 드릴 중심 축에 대하여 대칭인 상태로 배치될 수 있다.In addition, in the present invention, the first and second anti-vibration parts 17a and 17b are rectangular inserts, and are installed on the body 11 and include a plurality of vibrations including a cylindrical body extending radially around the center axis of the drill. The prevention guides 41 and 42 are further included, and the plurality of anti-vibration guides may be disposed symmetrically with respect to the center axis of the drill.
또한, 본 발명에서 드릴을 길이 방향으로 연장시키기 위한 익스텐션 바(30), 상기 몸체(11)와 익스텐션 바(30)를 연결하기 위한 연결 링(20) 및 상기 연결 링(20)에 설치되는 복수의 진동 방지 가이드를 추가로 포함하고, 상기 연결 링에 설치되는 상기 복수의 진동 방지 가이드는 드릴 중심축을 중심으로 대칭인 상태로 배치되고, 복수의 진동 방지 가이드 각각은 상기 연결링에 고정되고 드릴 중심축에 대하여 방사방향으로 연장하는 원통형 몸체 및 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함할 수 있다.In addition, in the present invention, the extension bar 30 for extending the drill in the longitudinal direction, a connecting ring 20 for connecting the body 11 and the extension bar 30, and a plurality installed on the connecting ring 20 The anti-vibration guide further includes, the plurality of anti-vibration guides installed on the connection ring are arranged in a symmetrical state around the center axis of the drill, each of the plurality of anti-vibration guides is fixed to the connection ring and drill center It may include a cylindrical body extending in the radial direction with respect to the axis and the same contact surface as the shape of the inner surface 201a of the hole formed during drilling.
또한, 본 발명은 드릴의 중심을 관통하는 드릴 중심 축을 포함하는 드릴 몸체(11); 드릴 작업시 홀의 안쪽을 가공하는 내측 인서트(12a) 및 홀의 바깥쪽을 가공하는 외측 인서트(12b)를 포함하는 절삭부; 및 드릴 중심축을 중심으로 방사방향으로 연장하며 상기 몸체(11)에 설치되는 원통형 몸체와 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함하는 카바이드 소재의 복수의 진동 방지 가이드(41, 42)를 포함하고, 상기 내측 인서트(12a) 및 외측 인서트(12b)는 드릴 축을 중심으로 대칭이며 서로 반대되는 방향의 평면에서 드릴 중심축을 중심으로 서로 비대칭적으로 위치하고, 상기 복수의 진동 방지 가이드는 드릴 중심 축에 대칭인 상태로 배치되는 것을 특징으로 하는 진동 방지용 드릴에 관한 것이다.In addition, the present invention is a drill body 11 including a drill central axis passing through the center of the drill; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; And a plurality of anti-vibration guides of carbide material comprising a cylindrical body installed in the body 11 and a contact surface that is the same as the shape of the inner surface 201a of the hole formed during drilling, extending radially around the center axis of the drill , 42), the inner insert (12a) and the outer insert (12b) is symmetrical about the drill axis and asymmetrically positioned with respect to each other about the center of the drill in the plane in opposite directions, the plurality of anti-vibration guides Is related to a drill for preventing vibration, characterized in that arranged in a symmetrical state on the center axis of the drill.
또한, 본 발명에서 드릴을 길이 방향으로 연장시키기 위한 익스텐션 바(30), 상기 몸체(11)와 익스텐션 바(30)를 연결하기 위한 연결 링(20) 및 상기 연결 링(20)에 설치되는 카바이드 소재의 복수의 진동 방지 가이드를 추가로 포함하고,상기 연결 링에 설치되는 상기 복수의 진동 방지 가이드는 드릴 중심축을 중심으로 대칭인 상태로 배치되고, 상기 연결 링에 설치되는 복수의 진동 방지 가이드 각각은 상기 연결링에 고정되고 드릴 중심축에 대하여 방사방향으로 연장하는 원통형 몸체 및 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함할 수 있다.In addition, in the present invention, the extension bar 30 for extending the drill in the longitudinal direction, the connecting ring 20 for connecting the body 11 and the extension bar 30, and the carbide installed on the connecting ring 20 Further comprising a plurality of anti-vibration guides of the material, the plurality of anti-vibration guides installed on the connecting ring are disposed in a symmetrical state around the central axis of the drill, each of the plurality of anti-vibration guides installed on the connection ring May include a cylindrical body fixed to the connecting ring and extending radially with respect to the drill central axis, and a contact surface identical to the shape of the inner surface 201a of the hole formed during drilling.
또한, 본 발명은 드릴의 중심을 관통하는 드릴 중심 축을 포함하는 드릴 몸체(11); 드릴 작업시 홀의 안쪽을 가공하는 내측 인서트(12a) 및 홀의 바깥쪽을 가공하는 외측 인서트(12b)를 포함하는 절삭부; 드릴을 길이 방향으로 연장시키기 위한 익스텐션 바(30); 상기 몸체(11)와 익스텐션 바(30)를 연결하기 위한 연결 링(20); 및 상기 연결 링(20)에 드릴 중심축을 중심으로 대칭인 상태로 설치되는 카바이드 소재의 복수의 진동 방지 가이드를 포함하고, 상기 내측 인서트(12a) 및 외측 인서트(12b)는 드릴 축을 중심으로 대칭이며 서로 반대되는 방향의 평면에서 드릴 중심축을 중심으로 비대칭적으로 위치하고, 상기 연결 링에 설치되는 복수의 진동 방지 가이드 각각은 상기 연결링에 고정되고 드릴 중심축에 대하여 방사방향으로 연장하는 원통형 몸체 및 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함하는 것을 특징으로 하는 진동 방지용 드릴에 관한 것이다.In addition, the present invention is a drill body 11 including a drill central axis passing through the center of the drill; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; An extension bar 30 for extending the drill in the longitudinal direction; A connecting ring 20 for connecting the body 11 and the extension bar 30; And a plurality of anti-vibration guides made of a carbide material installed symmetrically about a drill central axis on the connecting ring 20, wherein the inner insert 12a and the outer insert 12b are symmetrical about the drill axis. A cylindrical body and a drill, which are located asymmetrically about a drill central axis in a plane opposite to each other, and each of the plurality of anti-vibration guides installed in the connecting ring is fixed to the connecting ring and extends radially with respect to the drill central axis It relates to a drill for preventing vibration characterized in that it comprises a contact surface that is the same as the shape of the inner surface (201a) of the hole formed during processing.
본 발명에서는 진동 방지부를 드릴 몸체에 추가로 설치하여 드릴 가공중 진동 발생을 억제할 수 있다.In the present invention, the vibration preventing portion can be further installed on the drill body to suppress vibration during drilling.
또한, 본 발명에서는 드릴 몸체에 카바이드 소재의 가이드를 드릴 몸체 및/또는 연결 링에 추가로 장착하여 드릴 작업중 진동 발생을 억제할 수 있다.In addition, in the present invention, by mounting the guide of the carbide material to the drill body and/or to the drill body and/or the connecting ring, vibration can be suppressed during drilling.
도 1a는 종래 인서트 드릴의 평면도이다.1A is a plan view of a conventional insert drill.
도 1b는 도 1a가 180도 회전한 상태의 도면이다.1B is a view of FIG. 1A rotated 180 degrees.
도 2a는 본 발명의 특징인 진동 방지부(17a)가 추가된 드릴의 평면도이다.2A is a plan view of a drill to which an anti-vibration part 17a, which is a characteristic of the present invention, is added.
도 2b는 도 2a를 180도 회전한 도면이다.2B is a view of FIG. 2A rotated 180 degrees.
도 3a는 또 다른 형태의 종래 드릴의 사시도이다.3A is a perspective view of another type of conventional drill.
도 3b는 3a 드릴의 평면도이고 도 3c는 도 3b가 180도 회전한 도면이다.3B is a plan view of a 3A drill, and FIG. 3C is a view in which FIG. 3B is rotated 180 degrees.
도 4a는 도 3a의 종래 드릴에 본 발명 특징을 적용한 드릴의 사시도이다.Figure 4a is a perspective view of a drill applying the features of the present invention to the conventional drill of Figure 3a.
도 4b는 도 4a 드릴의 평면도이고 도 4c는 도 4b를 180도 회전한 도면이다.4B is a plan view of the drill of FIG. 4A, and FIG. 4C is a view of FIG. 4B rotated 180 degrees.
도 5a는 또 다른 형태의 종래 드릴의 평면도이고 도 5b는 도 5a를 180도 회전한 도면이다. 5A is a plan view of another type of conventional drill, and FIG. 5B is a view of FIG. 5A rotated 180 degrees.
도 6a 및 도 6b는 도 5a의 및 5b의 종래 드릴에 본 발명 특징을 적용한 드릴의 도면이다.6A and 6B are views of a drill to which the present invention features are applied to the conventional drills of FIGS. 5A and 5B.
이하, 첨부된 도면을 참조하여 본 발명을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
첨부된 도면은 본 발명의 예시적인 형태를 도시한 것으로, 이는 본 발명을 보다 상세히 설명하기 위해 제공되는 것일 뿐, 이에 의해 본 발명의 기술적인 범위가 한정되는 것은 아니다.The accompanying drawings show an exemplary form of the present invention, which is provided to describe the present invention in more detail, thereby not limiting the technical scope of the present invention.
도 1a는 종래 인서트 드릴의 평면도이고 도 1b는 도 1a를 180도 회전한 도면이다.1A is a plan view of a conventional insert drill and FIG. 1B is a view of FIG. 1A rotated 180 degrees.
드릴(100)은 몸체(11)를 포함하고, 몸체의 단부에는 소재(200)에 가공홀(201)을 형성하기 위한 절삭부인 내측 인서트(12a) 및 외측 인서트(12b)가 설치되어 있다.The drill 100 includes a body 11, and an inner insert 12a and an outer insert 12b, which are cutting portions for forming a machining hole 201 in the material 200, are installed at an end of the body.
드릴 작업에 의해 상기 내측 인서트(12a) 및 외측 인서트(12b)에 의해 형성된 소재의 칩(chip)들은 플루트(14a, 14b)를 통해 배출된다. Chips of the material formed by the inner insert 12a and the outer insert 12b by drilling are discharged through the flutes 14a, 14b.
상기 내측 인서트(12a)는 내측 인서트 카트리지(13a)에 장착되어 몸체(11)에 고정되고 마찬가지로 외측 인서트(12b)는 외측 인서트 카트리지(13b)에 장착되어 몸체(11)에 고정된다.The inner insert 12a is mounted on the inner insert cartridge 13a and fixed to the body 11, and likewise the outer insert 12b is mounted on the outer insert cartridge 13b and fixed to the body 11.
도 1a 및 도 1b에 도시된 종래 드릴(100)에서는 내측 인서트(12a)와 외측 인서트(12b)가 몸체, 특히 드릴 중심을 관통하는 드릴 중심축에 대하여 비대칭적으로 설치되어 있어서 드릴 가공시 진동이 발생한다.In the conventional drill 100 shown in FIGS. 1A and 1B, the inner insert 12a and the outer insert 12b are installed asymmetrically with respect to the body, in particular, the center axis of the drill passing through the center of the drill, thereby causing vibration during drilling. Occurs.
도 2a 및 도 2b는 본 발명의 특징인 진동 방지부(17a, 17b)가 추가된 드릴의 도면으로 도 2b는 도 2a를 180도 회전한 도면이다.2A and 2B are diagrams of a drill to which vibration preventing parts 17a and 17b, which are the features of the present invention, are added, and FIG. 2B is a view of rotating FIG. 2A by 180 degrees.
도 2a 및 도 2b에 도시된 것과 같이, 제1 및 제2 진동 방지부(17a, 17b)는 내측 인서트(12a) 및 외측 인서트(12b) 각각의 후방에 설치되어 있으며 제1 및 제2 진동 방지부(17a, 17b) 각각의 한쪽 측부(17aa, 17ba)는 드릴 가공시 가공홀의 내면(201a)과 접하게 된다.2A and 2B, the first and second anti-vibration parts 17a and 17b are installed at the rear of each of the inner insert 12a and the outer insert 12b, and the first and second anti-vibration Each side portion 17aa, 17ba of each of the portions 17a, 17b comes into contact with the inner surface 201a of the machining hole during drilling.
또한, 제1 및 제2 진동 방지부(17a, 17b)는 드릴 몸체를 관통하는 축 (드릴 중심 축)을 중심으로 대칭이 되게 설치되어 있으며, 상기 제1 및 제2 진동 방지부(17a, 17b)의 일 측면(17aa, 17bb)은 드릴 중심 축과 나란하며, 상기 내측 인서트(12a)와 제1 진동 방지부(17a)는 드릴 중심축에 나란한 평면에 함께 존재하고 마찬가지로 상기 외측 인서트(12b)와 제2 진동 방지부(17b)는 드릴 중심축에 나란한 평면에 함께 존재한다.In addition, the first and second anti-vibration parts 17a and 17b are installed symmetrically around an axis (drill center axis) penetrating the drill body, and the first and second anti-vibration parts 17a and 17b ) One side (17aa, 17bb) of the drill center axis is parallel, the inner insert (12a) and the first anti-vibration portion (17a) are present together in a plane parallel to the drill central axis and likewise the outer insert (12b) And the second anti-vibration part 17b are present together in a plane parallel to the center axis of the drill.
드릴 가공중, 내측 인서트(12a) 및 외측 인서트(12b)가 가공홀(201)을 형성하며 드릴이 진행하고, 내측 인서트(12a) 및 외측 인서트(12b)의 후방에 설치된 제1 및 제2 진동 방지부(17a, 17b)의 측부는 형성된 가공홀(201)의 내면(201a)과 나란하게 접촉하면서 진행하며 드릴 가공중 드릴에 발생하는 진동을 감소시킬 수 있다.During drilling, the inner insert 12a and the outer insert 12b form a machining hole 201 and the drill proceeds, and the first and second vibrations installed behind the inner insert 12a and the outer insert 12b The side portions of the prevention portions 17a and 17b progress while being in parallel contact with the inner surface 201a of the formed processing hole 201 and can reduce vibration generated in the drill during drilling.
상기 제1 및 제2 진동 방지부(17a, 17b)는 가공용 인서트의 형태를 구비하고 내면(201a)에 나란하게 접촉하는 측부(17a, 17b)는 상기 내면(201)을 깍으면서 가공홀을 따라 진행할 수 있다.The first and second anti-vibration parts 17a and 17b have a shape of an insert for processing, and the side parts 17a and 17b that are in parallel contact with the inner surface 201a along the processing hole while cutting the inner surface 201 You can proceed.
도 3a는 또 다른 형태의 종래 드릴의 사시도이고 도 3b는 3a 드릴의 평면도이고 도 3c는 도 3b가 180도 회전한 도면이다.3A is another perspective view of a conventional drill, FIG. 3B is a plan view of a 3A drill, and FIG. 3C is a view in which FIG. 3B is rotated 180 degrees.
도 3a 내지 도 3c의 드릴(100)에는 익스텐션 바(30), 및 몸체(11)와 익스텐션 바(30)를 연결하는 링(20)을 추가로 포함한다.The drill 100 of FIGS. 3A to 3C further includes an extension bar 30 and a ring 20 connecting the body 11 and the extension bar 30.
도 4a 내지 도 4c는 도 3a의 종래 드릴에 진동 방지 가이드(41, 42, 51, 52, 53, 54)를 추가로 포함하고, 상기 진동 방지 가이드는 소재에 형성되는 가공 홀(201)의 내면(201a)과 접촉하는 형태가 되며 드릴 가공중 내면과 접촉하여 진동 발생을 억제시킨다.4A to 4C further include anti-vibration guides 41, 42, 51, 52, 53, and 54 in the conventional drill of FIG. 3A, and the anti-vibration guide is an inner surface of a machining hole 201 formed in a material. It becomes in contact with (201a) and suppresses the occurrence of vibration by contacting the inner surface during drilling.
도 4a 내지 도 4c에는 원통형 형상이며 드릴 중심 축을 중심으로 방사 방향으로 연장되고 몸체(11)에 설치되는 제1 및 제2 진동 방지 가이드(41, 42)와 연결 링(20)에 설치되는 제3 내지 제6 진동 방지 가이드(51, 52, 53, 54)를 도시하고 있다.4A to 4C, the cylindrical shape is extended in the radial direction around the center axis of the drill and is installed on the first and second anti-vibration guides 41 and 42 and the third connection ring 20 installed on the body 11 To the sixth anti-vibration guides 51, 52, 53 and 54 are shown.
몸체에 설치되는 제1 및 제2 진동 방지 가이드 및 링에 설치되는 제3 내지 제6 진동 방지 가이드는 드릴의 길이방향 축을 중심으로 방사 방향으로 연장하며 대칭인 구조를 구비한다.The first and second anti-vibration guides installed on the body and the third to sixth anti-vibration guides installed on the ring extend radially around the longitudinal axis of the drill and have a symmetrical structure.
제1 내지 제6 진동 방지 가이드는 동일한 형태이고 소재는 카바이드인 것이 바람직하다.It is preferable that the first to sixth anti-vibration guides have the same shape and the material is carbide.
진동 방지 가이드는 도면 번호 54에서 설명하는 것처럼, 원통형 가이드 몸체(54a)와 원통형 가공 홀의 내면(201a)과 접하는 형태인 외면을 구비한 접촉면(54b)을 포함한다.The anti-vibration guide includes a cylindrical guide body 54a and a contact surface 54b having an outer surface in contact with the inner surface 201a of the cylindrical machining hole, as described in reference numeral 54.
접촉면(54b)은 가공 홀의 내면(201a)과 같은 곡면을 이룬다.The contact surface 54b forms the same curved surface as the inner surface 201a of the machining hole.
도 5a는 또 다른 형태의 종래 드릴의 평면도로서 도 3a의 드릴에 비하여 파일러 드릴(15)을 추가로 포함한다Figure 5a is a plan view of another type of conventional drill further includes a piler drill 15 compared to the drill of Figure 3a.
도 5b는 도 5a를 180도 회전한 도면이다. 5B is a view of FIG. 5A rotated 180 degrees.
도 6a 및 도 6b는 도 5a의 및 5b의 종래 드릴에 본 발명 특징을 적용한 드릴의 도면으로, 도 2a 및 2b에서 처럼 진동 방지부(17a, 17b)를 포함하고 진동 방지부는 절삭 인서트의 형태인 것이 바람직하다.6A and 6B are drawings of a drill to which the features of the present invention are applied to the conventional drills of FIGS. 5A and 5B, as shown in FIGS. 2A and 2B, including vibration preventing parts 17a and 17b, and the vibration preventing part being in the form of a cutting insert It is preferred.
이상의 설명은 본 발명의 기술사상을 예시적으로 설명한 것에 불과한 것으로 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서 본 발명에 개시된 실시예는 본 발명의 기술사상을 한정하기 위한 것이 아니라 설명하기 위한 것 이고, 이러한 실시예에 의하여 본 발명의 기술사상의 범위가 한정되는 것은 아니다. 본 발명의 보호범위는 아래의 특허청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술사상은 본 발명의 권리범위 에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain it, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical thoughts within the equivalent range should be interpreted as being included in the scope of the present invention.

Claims (6)

  1. 드릴의 중심을 관통하는 드릴 중심 축을 포함하는 드릴 몸체(11);A drill body 11 including a drill center axis passing through the center of the drill;
    드릴 작업시 홀의 안쪽을 가공하는 내측 인서트(12a) 및 홀의 바깥쪽을 가공하는 외측 인서트(12b)를 포함하는 절삭부; 및A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; And
    상기 내측 인서트(12a)와 외측 인서트(12b) 각각의 후방에 드릴 중심축을 중심으로 대칭으로 설치되는 제1 및 제2 진동 방지부(17a, 17b)를 포함하고,The inner insert 12a and the outer insert 12b include first and second anti-vibration parts 17a and 17b symmetrically installed around a drill central axis at the rear of each,
    상기 내측 인서트(12a)와 제1 진동 방지부(17a)가 놓여지는 평면과 상기 외측 인서트(12b)와 제2 진동 방지부(17b)가 놓여지는 평면은 드릴 중심 축에 나란한 평면이고,The plane on which the inner insert 12a and the first anti-vibration portion 17a are placed and the plane on which the outer insert 12b and the second anti-vibration portion 17b are placed are planes parallel to the center axis of the drill,
    상기 제1 및 제2 진동 방지부(17a, 17b) 각각의 일측부(17aa, 17ba)는 드릴 중심축과 나란하게 설치되며 드릴 가공시 형성되는 홀의 내면(201a)과 접촉되고, One side of each of the first and second anti-vibration parts 17a and 17b 17aa and 17ba is installed in parallel with the center axis of the drill and is in contact with the inner surface 201a of the hole formed during drilling,
    상기 제1 및 제2 진동 방지부(17a, 17b)의 일측부(17aa, 17ba)에 의해 상기 내면이 깍여지는 것을 특징으로 하는 진동 방지용 드릴.Drill for preventing vibration, characterized in that the inner surface is cut by one side (17aa, 17ba) of the first and second anti-vibration (17a, 17b).
  2. 제1항에 있어서,According to claim 1,
    상기 제1 및 제2 진동 방지부(17a, 17b)는 사각형 인서트이고,The first and second anti-vibration parts (17a, 17b) are rectangular inserts,
    상기 몸체(11)에 설치되며 드릴 중심축을 중심으로 방사방향으로 연장하는 원통형 몸체(41a)를 포함하는 복수의 진동 방지 가이드(41, 42)를 추가로 포함하고,It is installed on the body 11 and further includes a plurality of anti-vibration guides (41, 42) including a cylindrical body (41a) extending radially about the center axis of the drill,
    상기 복수의 진동 방지 가이드는 드릴 중심 축에 대하여 대칭인 상태로 배치되는 것을 특징으로 하는 진동 방지용 드릴.The plurality of anti-vibration guides are anti-vibration drills, characterized in that arranged in a symmetrical state with respect to the center axis of the drill.
  3. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    드릴을 길이 방향으로 연장시키기 위한 익스텐션 바(30), 상기 몸체(11)와 익스텐션 바(30)를 연결하기 위한 연결 링(20) 및 상기 연결 링(20)에 설치되는 복수의 진동 방지 가이드를 추가로 포함하고,The extension bar 30 for extending the drill in the longitudinal direction, a connecting ring 20 for connecting the body 11 and the extension bar 30, and a plurality of anti-vibration guides installed on the connecting ring 20 In addition,
    상기 연결 링에 설치되는 상기 복수의 진동 방지 가이드는 드릴 중심축을 중심으로 대칭인 상태로 배치되고,The plurality of anti-vibration guides installed on the connection ring are arranged symmetrically about the center axis of the drill,
    복수의 진동 방지 가이드 각각은 상기 연결링에 고정되고 드릴 중심축에 대하여 방사방향으로 연장하는 원통형 몸체 및 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함하는 것을 특징으로 하는 진동 방지용 드릴.Each of the plurality of anti-vibration guides is fixed to the connecting ring and includes a cylindrical body extending radially with respect to a drill central axis and a contact surface identical to the shape of the inner surface 201a of the hole formed during drilling. drill.
  4. 드릴의 중심을 관통하는 드릴 중심 축을 포함하는 드릴 몸체(11);A drill body 11 including a drill center axis passing through the center of the drill;
    드릴 작업시 홀의 안쪽을 가공하는 내측 인서트(12a) 및 홀의 바깥쪽을 가공하는 외측 인서트(12b)를 포함하는 절삭부; 및A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling; And
    드릴 중심축을 중심으로 방사방향으로 연장하며 상기 몸체(11)에 설치되는 원통형 몸체(41a)와 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함하는 카바이드 소재의 복수의 진동 방지 가이드(41, 42)를 포함하고,A plurality of anti-vibration guides of carbide material extending radially around the center axis of the drill and including a cylindrical body (41a) installed on the body (11) and a contact surface identical to the shape of the inner surface (201a) of the hole formed during drilling. (41, 42),
    상기 내측 인서트(12a) 및 외측 인서트(12b)는 드릴 축을 중심으로 대칭이며 서로 반대되는 방향의 평면에서 드릴 중심축을 중심으로 서로 비대칭적으로 위치하고,The inner insert 12a and the outer insert 12b are symmetrical about the drill axis and are located asymmetrically with respect to each other about the drill central axis in a plane opposite to each other,
    상기 복수의 진동 방지 가이드는 드릴 중심 축에 대칭인 상태로 배치되는 것을 특징으로 하는 진동 방지용 드릴.The plurality of anti-vibration guides are anti-vibration drills, characterized in that arranged in a symmetrical state on the center axis of the drill.
  5. 제4항에 있어서,According to claim 4,
    드릴을 길이 방향으로 연장시키기 위한 익스텐션 바(30), 상기 몸체(11)와 익스텐션 바(30)를 연결하기 위한 연결 링(20) 및 상기 연결 링(20)에 설치되는 카바이드 소재의 복수의 진동 방지 가이드를 추가로 포함하고,Multiple vibrations of carbide material installed on the extension bar 30 for extending the drill in the longitudinal direction, the connection ring 20 for connecting the body 11 and the extension bar 30, and the connection ring 20 Additional prevention guide,
    상기 연결 링에 설치되는 상기 복수의 진동 방지 가이드는 드릴 중심축을 중심으로 대칭인 상태로 배치되고,The plurality of anti-vibration guides installed on the connection ring are arranged symmetrically about the center axis of the drill,
    상기 연결 링에 설치되는 복수의 진동 방지 가이드 각각은 상기 연결링에 고정되고 드릴 중심축에 대하여 방사방향으로 연장하는 원통형 몸체 및 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함하는 것을 특징으로 하는 진동 방지용 드릴.Each of the plurality of anti-vibration guides installed in the connection ring includes a cylindrical body fixed to the connection ring and extending radially with respect to a drill central axis, and a contact surface identical to the shape of the inner surface 201a of the hole formed during drilling. Drill for preventing vibration, characterized in that.
  6. 드릴의 중심을 관통하는 드릴 중심 축을 포함하는 드릴 몸체(11);A drill body 11 including a drill center axis passing through the center of the drill;
    드릴 작업시 홀의 안쪽을 가공하는 내측 인서트(12a) 및 홀의 바깥쪽을 가공하는 외측 인서트(12b)를 포함하는 절삭부; A cutting part including an inner insert 12a for machining the inside of the hole and an outer insert 12b for machining the outside of the hole when drilling;
    드릴을 길이 방향으로 연장시키기 위한 익스텐션 바(30); An extension bar 30 for extending the drill in the longitudinal direction;
    상기 몸체(11)와 익스텐션 바(30)를 연결하기 위한 연결 링(20); 및A connecting ring 20 for connecting the body 11 and the extension bar 30; And
    상기 연결 링(20)에 드릴 중심축을 중심으로 대칭인 상태로 설치되는 카바이드 소재의 복수의 진동 방지 가이드를 포함하고,The coupling ring 20 includes a plurality of vibration-proof guides of carbide material installed in a symmetrical state around the center axis of the drill,
    상기 내측 인서트(12a) 및 외측 인서트(12b)는 드릴 축을 중심으로 대칭이며 서로 반대되는 방향의 평면에서 드릴 중심축을 중심으로 비대칭적으로 위치하고,The inner insert 12a and the outer insert 12b are symmetrical about the drill axis and are located asymmetrically about the drill central axis in a plane in opposite directions,
    상기 연결 링에 설치되는 복수의 진동 방지 가이드 각각은 상기 연결링에 고정되고 드릴 중심축에 대하여 방사방향으로 연장하는 원통형 몸체 및 드릴 가공시 형성되는 홀의 내면(201a)의 형상과 동일한 접촉면을 포함하는 것을 특징으로 하는 진동 방지용 드릴.Each of the plurality of anti-vibration guides installed in the connection ring includes a cylindrical body fixed to the connection ring and extending radially with respect to a drill central axis, and a contact surface identical to the shape of the inner surface 201a of the hole formed during drilling. Drill for preventing vibration, characterized in that.
PCT/KR2019/017421 2019-01-15 2019-12-11 Anti-vibration drill WO2020149533A1 (en)

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