KR20130106805A - Cutting tool - Google Patents

Cutting tool Download PDF

Info

Publication number
KR20130106805A
KR20130106805A KR1020130108006A KR20130108006A KR20130106805A KR 20130106805 A KR20130106805 A KR 20130106805A KR 1020130108006 A KR1020130108006 A KR 1020130108006A KR 20130108006 A KR20130108006 A KR 20130108006A KR 20130106805 A KR20130106805 A KR 20130106805A
Authority
KR
South Korea
Prior art keywords
bolt
main body
groove
cutting tool
bolt hole
Prior art date
Application number
KR1020130108006A
Other languages
Korean (ko)
Inventor
이정수
Original Assignee
(주)예스툴
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 (주)예스툴 filed Critical (주)예스툴
Priority to KR1020130108006A priority Critical patent/KR20130106805A/en
Publication of KR20130106805A publication Critical patent/KR20130106805A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/04—Tool holders for a single cutting tool
    • B23B29/12—Special arrangements on tool holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/0063—Centerdrills
    • 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

Abstract

PURPOSE: A cutting tool is provided to prevent a body from being relatively rotated around a sack holder when cutting a workpiece as a joining unit of the body is press-fixed to a joining groove of the sack holder by a bolt. CONSTITUTION: A cutting tool includes a joining unit (13) which is formed on the rear end portion of a body (10) to be integrated and tapered. A first bolt hole (15) is formed on the joining unit to be perpendicular to an axial direction (X). A joining groove (21) is formed on the front end portion of a sack holder (20), and a second bolt hole (23) is formed on the joining groove to be perpendicular to the axial direction so that the joining unit of the body is fitted into the joining groove of the sack holder. The joining unit of the body is fixated to the joining groove of the sack holder by a bolt (30) fitted into the first and second bolt holes.

Description

절삭공구{CUTTING TOOL}CUTTING TOOL

본 발명은 드릴, 엔드밀, 탭, 리머, T-커터, 센터드릴, 챔퍼툴 등과 같은 절삭 공구에 관한 것으로서, 보다 상세하게는 본체에 테이퍼지게 형성된 결합부가 자루 홀더의 결합홈에 끼워지면, 결합부에 형성된 볼트구멍과 결합홈에 형성된 제 2 볼트구멍이 일치되고, 볼트가 2개의 볼트구멍에 끼워짐으로써, 볼트에 의해 본체의 결합부가 자루 홀더의 결합홈에 압착 고정되어, 공작물을 절삭가공할 때, 본체의 결합부가 자루 홀더에 대해 상대 진동하는 것을 방지할 수 있는 절삭 공구에 관한 것이다.
The present invention relates to a cutting tool such as a drill, an end mill, a tap, a reamer, a T-cutter, a center drill, a chamfer tool and the like. More particularly, And the bolt is fitted in the two bolt holes so that the engaging portion of the main body is pressed and fixed to the engaging groove of the holder holder by the bolt so that the workpiece is cut To a cutting tool which can prevent the engagement portion of the main body from relatively oscillating with respect to the bag holder.

본 출원인의 대한민국 특허출원 제10-2011-108655호(2011년 10월 24일, 출원)에 "절삭공구"가 소개되어 있다.Korean Patent Application No. 10-2011-108655 (filed October 24, 2011) of the present applicant discloses a "cutting tool ".

상기 절삭공구는 절삭날이 형성된 본체의 후단에 연결부가 형성되고, 연결부의 후단면 중앙에 체결구멍이 형성되고, 본체의 연결부가 자루 홀더의 결합홈에 끼워지고, 자루 홀더의 결합홈과 중공부 사이에 중간 격막이 배치되고, 중간 격막에 관통구멍이 형성되고, 자루 홀더의 중공부로 볼트 부재가 인입되어, 볼트 부재의 나선 체결부가 자루 홀더의 관통구멍을 통해 본체의 체결구멍에 체결된다.The cutting tool has a connecting portion formed at a rear end of a main body having a cutting edge formed therein, a fastening hole formed at the center of the rear end of the connecting portion, a connecting portion of the main body being inserted into an engaging groove of the bag holder, A through hole is formed in the intermediate diaphragm and the bolt member is inserted into the hollow portion of the bag holder so that the threaded fastening portion of the bolt member is fastened to the fastening hole of the main body through the through hole of the bag holder.

그러나, 상기와 같은 절삭공구에서 본체와 자루 홀더의 결합구조를 다르게 변경할 수 있을 것이다.
However, the coupling structure between the main body and the bag holder in the above-described cutting tool may be changed differently.

따라서, 본 발명의 목적은 본체에 테이퍼지게 형성된 결합부가 자루 홀더의 결합홈에 끼워지면, 결합부에 형성된 볼트구멍과 결합홈에 형성된 볼트구멍이 일치되고, 볼트가 2개의 볼트구멍에 끼워짐으로써, 볼트에 의해 본체의 결합부가 자루 홀더의 결합홈에 압착 고정되어, 공작물을 절삭가공할 때, 본체가 자루 홀더에 대해 상대 진동하는 것을 방지할 수 있는 절삭 공구를 제공하는 것이다.
Accordingly, it is an object of the present invention to provide a bolt hole formed in a coupling portion and a bolt hole formed in a coupling groove of the bolt hole formed in the coupling portion, when the coupling portion taperedly formed in the main body is fitted in the coupling groove of the holder holder, And the engaging portion of the main body is pressed and fixed to the engaging groove of the bag holder by the bolt so that the main body can be prevented from relatively oscillating with respect to the bag holder when the workpiece is cut.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 절삭공구의 일례는 절삭날이 형성된 본체의 후단에 결합부가 일체로 테이퍼지게 형성되고, 결합부에 축방향에 수직하게 제 1 볼트구멍이 형성되고, 자루 홀더의 선단에 결합홈이 형성되고, 결합홈에 축방향에 수직하게 제 2 볼트구멍이 형성되어, 본체의 결합부가 자루 홀더의 결합홈에 끼워지고, 제 1 및 제 2 볼트구멍에 끼워지는 볼트에 의해 본체의 결합부가 자루 홀더의 결합홈에 고정되는 것을 특징으로 한다.According to an aspect of the present invention, there is provided a cutting tool comprising: a body formed with a cutting edge; a coupling part integrally formed on a rear end of the body; a first bolt hole formed in the coupling part perpendicularly to the axial direction; A second bolt hole is formed in the coupling groove at the tip end of the bag holder perpendicularly to the axial direction so that the coupling portion of the main body is fitted into the coupling groove of the holder holder and is inserted into the first and second bolt holes And the engaging portion of the main body is fixed to the engaging groove of the bag holder by the bolts.

상기 본체는 드릴, 엔드밀, 탭 공구, 리머, T-커터, 센터드릴, 챔퍼툴 중 어느 하나인 것을 특징으로 한다.Wherein the main body is any one of a drill, an end mill, a tap tool, a reamer, a T-cutter, a center drill, and a chamfer tool.

상기 제 2 볼트구멍은 볼트의 헤드부가 안착되는 헤드홈부와, 헤드홈부와 연결되는 비나선부와, 나선이 형성된 나선체결부로 구성되고, 나선체결부의 중심이 비나선부의 중심에 대해 편심되게 배치되는 것을 특징으로 한다.
The second bolt hole is composed of a head groove portion on which the head portion of the bolt is seated, a non-linear portion connected to the head groove portion, and a spiral coupling portion formed with a spiral, and the center of the spiral coupling portion is eccentrically disposed with respect to the center of the non- .

이것에 의해, 본 발명에 따른 절삭공구는 절삭날이 형성된 본체만을 교체할 수 있어, 제조비용을 절약할 수 있고, 본체의 결합부가 볼트에 의해 자루 홀더의 결합홈에 압착 고정됨으로써, 공작물을 절삭가공할 때, 본체가 자루 홀더에 대해 상대 진동하는 것을 방지할 수 있는 효과가 있다.
As a result, the cutting tool according to the present invention can replace only the main body on which the cutting edge is formed, thereby reducing the manufacturing cost, and cutting the work piece by pressing the engaging portion of the main body to the engaging groove of the bag holder by bolts. When processing, there is an effect that can prevent the main body from vibrating relative to the bag holder.

도 1은 본 발명에 따른 절삭공구를 도시한 분해 사시도
도 2는 본 발명에 따른 절삭공구를 도시한 단면도
도 3은 본 발명에 따른 절삭공구를 도시한 조립 측면도
도 4는 도 2에 도시된 자루 홀더의 결합홈을 확대 도시한 상세도1 is an exploded perspective view showing a cutting tool according to the present invention
2 is a cross-sectional view of a cutting tool according to the present invention.
Figure 3 is an assembly side view showing a cutting tool according to the present invention
Fig. 4 is an enlarged view showing an engaging groove of the bag holder shown in Fig. 2

이하, 본 발명의 바람직한 실시예를 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1 내지 도 3을 참조하면, 본 발명에 따른 절삭공구는 절삭날(11)이 형성된 본체(10)의 후단에 결합부(13)가 일체로 테이퍼지게 형성되고, 결합부(13)에 축방향(X)에 수직하게 제 1 볼트구멍(15)이 형성되고, 자루 홀더(20)의 선단에 결합홈(21)이 형성되고, 결합홈(21)에 축방향(X)에 수직하게 제 2 볼트구멍(23)이 형성되어, 본체(10)의 결합부(13)가 자루 홀더(20)의 결합홈(21)에 끼워지고, 제 1 및 제 2 볼트구멍(15, 23)에 끼워지는 볼트(30)에 의해 본체(10)의 결합부(13)가 자루 홀더(20)의 결합홈(21)에 고정된다.1 to 3, the cutting tool according to the present invention is formed with the coupling part 13 tapered integrally at the rear end of the main body 10 on which the cutting edge 11 is formed, and the shaft on the coupling part 13. The first bolt hole 15 is formed perpendicular to the direction X, the coupling groove 21 is formed at the tip of the bag holder 20, and the coupling groove 21 is formed perpendicular to the axial direction X. 2 bolt holes 23 are formed, the engaging portion 13 of the main body 10 is fitted into the engaging groove 21 of the bag holder 20, and is fitted into the first and second bolt holes 15 and 23. The coupling part 13 of the main body 10 is fixed to the coupling groove 21 of the bag holder 20 by the losing bolt 30.

또한, 도 1 내지 도 3에 본체(10)가 드릴로 도시되어 있지만, 본 발명은 여기에 한정되지 않고, 엔드밀, 탭 공구, 리머, T-커터, 센터드릴, 챔퍼툴 등과 같이 척에 자루부(생크)가 고정된 상태에서 회전하면서 공작물을 절삭 가공하는 모든 절삭 공구에 해당된다.Although the main body 10 is shown as a drill in Figs. 1 to 3, the present invention is not limited thereto. The present invention can be applied to a chuck such as an end mill, a tapping tool, a reamer, a T- This corresponds to all the cutting tools that cut the workpiece while rotating while the part (shank) is fixed.

상기 결합부(13)는 테이퍼지게 형성되어, 본체(10)에 연결된 부분에서 자유단으로 갈수록 직경(D)이 작아진다. The engaging portion 13 is tapered so that the diameter D decreases from the portion connected to the main body 10 toward the free end.

상기 자루 홀더(20)의 결합홈(21)은 본체(10)의 결합부(13)의 형상에 대응되게 형성되고, 내부에 확장부(22)가 형성되고, 중공부(24)와 연결된다.The coupling groove 21 of the bag holder 20 is formed to correspond to the shape of the coupling portion 13 of the main body 10 and the extended portion 22 is formed inside and connected to the hollow portion 24 .

도 4를 참조하면, 상기 제 2 볼트구멍(23)은 볼트(30)의 헤드부(33)가 안착되는 헤드홈부(23a)와, 헤드홈부(23a)와 연결되는 비나선부(23b)와, 나선이 형성된 나선체결부(23c)로 구성되고, 나선체결부(23c)의 중심(O2)이 비나선부(23b)의 중심(O1)에 대해 편심되게 배치된다.4, the second bolt hole 23 includes a head groove portion 23a on which the head portion 33 of the bolt 30 is seated, a non-linear portion 23b connected to the head groove portion 23a, And the center O2 of the screw engagement portion 23c is disposed eccentrically with respect to the center O1 of the non-linear portion 23b.

상기 비나선부(23b)의 중심(O1)에 대한 나선체결부(23c)의 중심(O2)의 편심 범위(e)는 볼트(30)가 비나선부(23b)를 통해 나선체결부(23c)에 체결될 수 있는 범위로 한정된다.The eccentric range e of the center O2 of the helical coupling portion 23c with respect to the center O1 of the non-linear portion 23b is set such that the bolt 30 is inserted into the helical coupling portion 23c through the non- And is limited to a range that can be engaged.

상기 볼트(30)는 자루부(32)의 일단에 헤드부(33)가 형성되고, 자루부(32)의 타단에 나선체결부(31)가 형성된다.The bolt 30 has a head portion 33 at one end of the bag portion 32 and a spiral fastening portion 31 at the other end of the bag portion 32.

상기와 같이 구성된 본 발명에 따른 절삭공구는 본체(10)의 결합부(13)가 자루 홀더(20)의 결합홈(21)에 끼워지면, 본체(10)의 제 1 볼트구멍(15)과 자루 홀더(20)의 제 2 볼트구멍(23)의 비나선부(23b)가 일치된다. 이후, 볼트(30)를 제 2 볼트구멍(23)의 헤드홈부(23a)로 끼우면, 볼트(30)가 제 2 볼트구멍(23)의 비나선부(23b)와 제 1 볼트구멍(15)를 통해 제 2 볼트구멍(23)의 나선체결부(23c)에 도달된다. 이후, 볼트(30)를 강제로 조이면, 볼트(30)의 나선체결부(31)가 제 2 볼트구멍(23)의 나선체결부(23c)에 체결된다. 이때, 볼트(30)가 본체(10)의 결합부(13)를 도 3의 화살표(17) 방향으로 당기게 됨으로써, 테이퍼지게 형성된 본체(10)의 결합부(13)가 자루 홀더(20)의 결합홈(21)에 압착되어, 공작물을 절삭가공할 때, 본체(10)의 결합부(13)가 자루 홀더(20)에 대해 상대 진동하는 것을 방지할 수 있게 된다.
The cutting tool according to the present invention configured as described above has a first bolt hole 15 of the main body 10 when the engaging portion 13 of the main body 10 is fitted into the engaging groove 21 of the bag holder 20. The non-helical portions 23b of the second bolt holes 23 of the bag holder 20 coincide with each other. Thereafter, when the bolt 30 is inserted into the head groove 23a of the second bolt hole 23, the bolt 30 is inserted into the bolt hole 23 and the first bolt hole 15 of the second bolt hole 23 And reaches the spiral fastening portion 23c of the second bolt hole 23. [ Thereafter, when the bolt 30 is forcibly tightened, the threaded fastening portion 31 of the bolt 30 is fastened to the threaded fastening portion 23c of the second bolt hole 23. At this time, since the bolt 30 pulls the engaging portion 13 of the main body 10 in the direction of arrow 17 in Fig. 3, the engaging portion 13 of the tapered main body 10 is pulled out of the bag holder 20 It is possible to prevent the engaging portion 13 of the main body 10 from relatively oscillating with respect to the bag holder 20 when the workpiece is cut.

10 : 본체 13 : 결합부
15 : 제 1 볼트구멍 20 : 자루 홀더
21 : 결합홈 23 : 제 2 볼트구멍
30 : 볼트10: main body 13:
15: first bolt hole 20: sack holder
21: coupling groove 23: second bolt hole
30: Bolt

Claims (3)

절삭날(11)이 형성된 본체(10)의 후단에 결합부(13)가 일체로 테이퍼지게 형성되고, 결합부(13)에 축방향(X)에 수직하게 제 1 볼트구멍(15)이 형성되고, 자루 홀더(20)의 선단에 결합홈(21)이 형성되고, 결합홈(21)에 축방향(X)에 수직하게 제 2 볼트구멍(23)이 형성되어, 본체(10)의 결합부(13)가 자루 홀더(20)의 결합홈(21)에 끼워지고, 제 1 및 제 2 볼트구멍(15, 23)에 끼워지는 볼트(30)에 의해 본체(10)의 결합부(13)가 자루 홀더(20)의 결합홈(21)에 고정되는 것을 특징으로 하는 절삭 공구.
The coupling part 13 is formed to be tapered integrally at the rear end of the main body 10 in which the cutting edge 11 is formed, and the first bolt hole 15 is formed in the coupling part 13 perpendicular to the axial direction X. And a coupling groove 21 is formed at the tip of the bag holder 20, and a second bolt hole 23 is formed in the coupling groove 21 perpendicular to the axial direction X to engage the body 10. The engaging portion 13 of the main body 10 by the bolt 30 fitted into the engaging groove 21 of the bag holder 20 and fitted into the first and second bolt holes 15 and 23. ) Is a cutting tool, characterized in that fixed to the coupling groove (21) of the bag holder (20).
제 1 항에 있어서,
상기 본체(10)는 드릴, 엔드밀, 탭 공구, 리머, T-커터, 센터드릴, 챔퍼툴 중 어느 하나인 것을 특징으로 하는 절삭 공구.
The method of claim 1,
The main body (10) is a cutting tool, characterized in that any one of a drill, end mill, tap tool, reamer, T-cutter, center drill, chamfer tool.
제 1 항에 있어서,
상기 제 2 볼트구멍(23)은 볼트(30)의 헤드부(33)가 안착되는 헤드홈부(23a)와, 헤드홈부(23a)와 연결되는 비나선부(23b)와, 나선이 형성된 나선체결부(23c)로 구성되고, 나선체결부(23c)의 중심(O2)이 비나선부(23b)의 중심(O1)에 대해 편심되게 배치되는 것을 특징으로 하는 절삭 공구.
The method of claim 1,
The second bolt hole 23 includes a head groove portion 23a on which the head portion 33 of the bolt 30 is seated, a non-helix portion 23b connected to the head groove portion 23a, and a spiral fastening portion formed with a spiral. And a center portion (O2) of the spiral fastening portion (23c) is eccentrically disposed with respect to the center portion (O1) of the non-helix portion (23b).
KR1020130108006A 2013-09-09 2013-09-09 Cutting tool KR20130106805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130108006A KR20130106805A (en) 2013-09-09 2013-09-09 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130108006A KR20130106805A (en) 2013-09-09 2013-09-09 Cutting tool

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1020110129972A Division KR101419400B1 (en) 2011-12-07 2011-12-07 Cutting tool

Publications (1)

Publication Number Publication Date
KR20130106805A true KR20130106805A (en) 2013-09-30

Family

ID=49454550

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130108006A KR20130106805A (en) 2013-09-09 2013-09-09 Cutting tool

Country Status (1)

Country Link
KR (1) KR20130106805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106584030A (en) * 2016-12-19 2017-04-26 中国科学院长春光学精密机械与物理研究所 Machining method for small-diameter positioning pin hole
CN108772587A (en) * 2018-06-05 2018-11-09 邢建 A kind of carbide drill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106584030A (en) * 2016-12-19 2017-04-26 中国科学院长春光学精密机械与物理研究所 Machining method for small-diameter positioning pin hole
CN108772587A (en) * 2018-06-05 2018-11-09 邢建 A kind of carbide drill

Similar Documents

Publication Publication Date Title
JP4747282B2 (en) Insert removable drill
EP2164666B1 (en) Multi-piece tool assembly and cutting tool
US8052359B2 (en) Countersink assembly
DE602004025609D1 (en) DRILLS
JP2015509854A5 (en)
US8753048B2 (en) Hole saw
US8465234B2 (en) Drilling bit with the depth-limiting and angle-leading function for the carpenter's work
US10596642B2 (en) Tool and tool holder assembly
CN108778582A (en) Cutting element
US8747032B2 (en) Tool for machining, in particular straight turning tool
US20140216825A1 (en) Auger bit with replaceable cutting bit
KR20130106805A (en) Cutting tool
US7128501B1 (en) Lathe tool assembly
CN104400046A (en) Tool clamping chuck
JPWO2017094531A1 (en) Replaceable cutting tool
KR101419400B1 (en) Cutting tool
KR20110128437A (en) Bolt head groove formation tool
KR20090108205A (en) The Taper Holder for Cutting Tool
JP2014136307A (en) Drill hole depth adjustment tool
US20150093209A1 (en) Attachment structure for main spindle and tool holder of machine tool
JP2004505791A (en) Cutting tool assembly
JP6630307B2 (en) Raw claw and chuck device for scroll chuck
KR101353027B1 (en) Bite of lathe
KR20130114042A (en) Bite of lathe
CN214392497U (en) Drill chuck

Legal Events

Date Code Title Description
A107 Divisional application of patent
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application