KR20210073259A - A clamping device for cutting blade - Google Patents

A clamping device for cutting blade Download PDF

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Publication number
KR20210073259A
KR20210073259A KR1020190163890A KR20190163890A KR20210073259A KR 20210073259 A KR20210073259 A KR 20210073259A KR 1020190163890 A KR1020190163890 A KR 1020190163890A KR 20190163890 A KR20190163890 A KR 20190163890A KR 20210073259 A KR20210073259 A KR 20210073259A
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KR
South Korea
Prior art keywords
cutting edge
clamping means
fastening groove
hole
bolt
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KR1020190163890A
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Korean (ko)
Inventor
최현호
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(주)세현하이테크
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Priority to KR1020190163890A priority Critical patent/KR20210073259A/en
Publication of KR20210073259A publication Critical patent/KR20210073259A/en

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    • 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
    • B23B27/1603—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 with specially shaped plate-like exchangeable cutting inserts, e.g. chip-breaking groove
    • 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
    • B23B27/1614—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 with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
    • B23B27/1622—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 with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert characterised by having a special shape
    • 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
    • B23B27/18—Cutting tools of which the bits or tips or cutting inserts are of special material with cutting bits or tips or cutting inserts rigidly mounted, e.g. by brazing

Abstract

The present invention relates to a clamping device for a cutting blade, wherein a clamping means for fixing a cutting blade is improved to enhance durability of a cutting blade and a clamping device for the cutting blade as well as firmly fix the cutting blade to enhance quality of a machined workpiece. The clamping device for a cutting blade according to the present invention comprises: a holder portion (10) having one end of its body removably fixed to a cutting device; and a fastening groove portion (20) having the other end of its body removably fastened to a clamping means (30), wherein the clamping means (30) includes an upper engaging portion (31) and a lower engaging portion (32), the lower engaging portion (32) has a plurality of through-holes (32a) punched, and the clamping means (30) is integrally fastened into the fastening groove portion (20) by bolts (B) passing through the through-holes (32a). Moreover, a taper hole (31) whose inner diameter decreases gradually is formed in the upper engaging portion (31) and the clamping means (30) is fixed to the fastening groove portion (20) by a taper bolt passing through the taper hole (31a).

Description

절삭날 클램퍼 {A clamping device for cutting blade}Cutting edge clamper {A clamping device for cutting blade}

본 발명은 절삭날 클램퍼에 관한 것으로, 절삭날을 고정하는 클램핑수단을 개선하여 절삭날을 견고하게 고정함으로써 피가공물의 가공품질을 향상시킴은 물론 절삭날 및 절삭날 클램퍼의 내구성을 향상시킬 수 있는 절삭날클램퍼에 관한 것이다.The present invention relates to a cutting edge clamper, which improves the clamping means for fixing the cutting edge to firmly fix the cutting edge, thereby improving the machining quality of a workpiece as well as improving the durability of the cutting edge and the cutting edge clamper. It relates to a cutting edge clamper.

일반적으로 피가공물을 가공하는 절삭날이 홀더에 일체형으로 결합된 상태로 사용되는 경우 필요에 따라 절삭날을 교체하는 경우 홀더와 함께 교체해야 하므로 제작단가가 비싸지는 단점이 있다. 이러한 단점을 극복하기 위해 절삭날을 홀더 또는 클램퍼로부터 탈착가능하게 볼트결합을 통해 고정하는 경우가 보통인데, 이 경우에는 상기 절삭날이 피가공물과 무수한 진동으로 볼트에 의한 결속부가 쉽게 느슨해져 피가공물의 품질이 떨어지는 단점이 있음은 물론 상기 절삭날과 클램퍼 또는 홀더의 덜컹거림으로 인하여 절삭날 및 절삭날 홀더의 내구성이 떨어진다는 문제점이 있어 왔다.In general, when the cutting edge for processing the workpiece is used in a state integrally coupled to the holder, if the cutting edge is replaced if necessary, it must be replaced together with the holder, so the manufacturing cost is high. In order to overcome this disadvantage, it is common to fix the cutting edge through bolting so that it can be detached from the holder or clamper. In this case, the coupling part by the bolt is easily loosened due to the countless vibrations of the cutting edge with the workpiece. There has been a problem in that the durability of the cutting edge and the cutting edge holder is deteriorated due to the rattling of the cutting edge and the clamper or the holder as well as the disadvantage of poor quality.

상기의 문제점을 해결하기 위해 절삭날을 고정하는 클램핑수단을 개선하여 절삭날을 견고하게 고정함으로써 피가공물의 가공품질을 향상시킴은 물론 절삭날 및 절삭날 클램퍼의 내구성을 향상시킬 수 있는 절삭날 클램퍼의 구현이 요구되고 있다.In order to solve the above problems, a cutting edge clamper that can improve the clamping means for fixing the cutting edge and firmly fix the cutting edge to improve the machining quality of the workpiece as well as improve the durability of the cutting edge and the cutting edge clamper implementation is required.

본 발명은 상기한 점을 감안하여 안출된 것으로, 본 발명의 목적은 절삭날을 고정하는 클램핑수단을 개선하여 절삭날을 견고하게 고정함으로써 피가공물의 가공품질을 향상시킴은 물론 절삭날 및 절삭날 클램퍼의 내구성을 향상시킬 수 있는 절삭날 클램퍼를 제공하는데 있다.The present invention has been devised in view of the above, and an object of the present invention is to improve the cutting edge and the cutting edge, as well as to improve the machining quality of the workpiece by firmly fixing the cutting edge by improving the clamping means for fixing the cutting edge. An object of the present invention is to provide a cutting edge clamper capable of improving the durability of the clamper.

상기의 목적을 달성하기 위하여 본 발명에 따른 절삭날 클램퍼는 몸체의 일단이 절삭장치에 탈착가능하게 고정되는 홀더부와, 몸체의 타단에는 클램핑수단이 탈착가능하게 체결되는 체결홈부가 포함되어 이루어지는 절삭날 클램퍼에 있어서, 상기 클램핑수단은 상기 체결홈부에 몸체가 일체로 고정되고, 몸체의 일단에는 절삭날을 홀딩하기 위한 상부물림부와 하부물림부가 형성되고, 상기 하부물림부에는 복수의 관통공이 천공되어 이 관통공을 통하는 볼트에 의해 상기 클램핑수단이 상기 체결홈부에 일체로 결합되며, 상기 상부물림부에도 내경이 점차적으로 작아지는 테이퍼공이 형성되어 이 테이퍼공을 관통하는 테이퍼볼트에 의해 상기 클램핑수단이 상기 체결홈부에 고정된다. 상기 체결홈부에는 상기 테이퍼공에 대응하는 볼트공이 형성되고, 상기 볼트공은 테이퍼공에 대해 상,하부물림부에 홀딩되는 절삭날 방향으로 편심되게 형성되며, 상기 테이퍼공은 상방향으로 절개된다. 상기 테이퍼공에 체결되는 테이퍼볼트는 머리부가 몸체부 방향으로 외경이 점차적으로 작아지는 테이퍼 형태로 형성되며, 머리부에 인접하는 몸체부 외주면은 밋밋하게 형성된다.In order to achieve the above object, a cutting edge clamper according to the present invention includes a holder part in which one end of a body is detachably fixed to a cutting device, and a fastening groove part in which the clamping means is detachably fastened to the other end of the body. In the blade clamper, the clamping means has a body integrally fixed to the fastening groove portion, an upper engaging portion and a lower engaging portion for holding the cutting edge are formed at one end of the body, and a plurality of through holes are drilled in the lower engaging portion. The clamping means is integrally coupled to the fastening groove portion by a bolt passing through the through hole, and a tapered hole whose inner diameter is gradually reduced is also formed in the upper engagement portion, and the clamping means is formed by the taper bolt passing through the taper hole. This is fixed to the fastening groove. A bolt hole corresponding to the tapered hole is formed in the fastening groove portion, and the bolt hole is formed eccentrically in the direction of the cutting edge held by the upper and lower engagement portions with respect to the tapered hole, and the tapered hole is cut in the upward direction. The taper bolt fastened to the taper hole is formed in a tapered shape in which the head portion has an outer diameter gradually decreasing in the body portion direction, and the outer peripheral surface of the body portion adjacent to the head portion is formed flat.

본 발명에 따른 절삭날 클램퍼는The cutting edge clamper according to the present invention

첫째, 절삭날을 물림고정하는 클램핑수단의 상부물림부를 볼트결합으로 홀더부에 체결하되 상기 볼트결합을 편심되게 결합하며, 상부물림부의 연결부위에 탄성이음부를 구비함으로써 상기 편심으로 인한 쏠림현상과 탄성이 음부의 지탱력으로 상기 절삭날이 클램핑수단에 견고하게 결함됨으로써 피가공물의 가공품질을 향상시킬 수 있는 유용한 효과가 있다.First, the upper engaging part of the clamping means for engaging and fixing the cutting edge is fastened to the holder part by bolting, but the bolted connection is eccentrically coupled, and by providing an elastic joint in the connection part of the upper engaging part, the eccentricity of the pulling phenomenon and There is a useful effect that can improve the machining quality of the workpiece by firmly defecting the cutting edge to the clamping means due to the holding force of the negative portion of elasticity.

둘재, 상기와 같이 절삭날을 클램핑수단에 견고하게 결합시킴으로 절삭날과 피가공물의 무수한 진동에도 불구하고 절삭날이 클램핑수단으로부터 덜컹거림 없이 견고하게 결합상태를 유지함으로써 절삭날 및 절삭날 클램퍼의 내구성을 향상시킬 수 있는 매우 유리한 효과가 있다.Second, by firmly coupling the cutting edge to the clamping means as described above, the cutting edge and the cutting edge clamper are durable by maintaining the firmly coupled state without rattling from the clamping means despite countless vibrations of the cutting edge and the workpiece. It has a very beneficial effect that can improve

도1 본 발명에 따른 절삭날 클램퍼를 도시한 시사도
도2 본 발명에 따른 절삭날 클램퍼를 도시한 분리시사도
도3 클램핑수단을 발췌하여 도시한 시사도
도4 볼트 및 테이퍼볼트를 미도시한 상태의 측면도 및 요부확대도
도5 본 발명에 따른 절삭날 클램퍼의 사용상태도1 is a perspective view showing a cutting edge clamper according to the present invention;
Figure 2 is an exploded perspective view showing the cutting edge clamper according to the present invention
Fig. 3 is a preview view showing the clamping means extracted
Figure 4 A side view and an enlarged view of the main part of the bolt and taper bolt not shown
5 is a state diagram of the cutting edge clamper according to the present invention

도1은 본 발명에 따른 절삭날 클램퍼를 도시한 사시도이고, 도2는 본 발명에 따른 절삭날 클램퍼를 도시한 분리사시도이다. 도3은 클램핑수단을 발췌하여 도시한 사시도이고, 도4는 볼트 및 테이퍼볼트를 미도시한 상태의 측면도 및 요부확대도로써, 본 발명은 몸체의 일단이 절삭장치에 탈착가능하게 고정되는 홀더부(10)와 몸체의 타단에는 클램핑수단(30)이 탈착가능하게 체결되는 체결홈부(20)가 포함되어 이루어지는 절삭날 클램퍼에 있어서, 상기 클램핑수단(30)은 상기 체결홈부(20)에 몸체가 일체로 고정되고, 몸체의 일단에는 절삭날(K)을 홀딩하기 위한 상부물림부(31)와 하부물림부(32)가 형성되고, 상기 하부물림부(32)에는 복수의 관통공(32a)이 천공되어 이 관통공(32a)을 통하는 볼트(B)에 의해 상기 클램핑수단(30)이 상기 체결홈부(20)에 일체로 결합되며, 상기 상부물림부(31)에도 내경이 점차적으로 작아지는 테이퍼공(31)이 형성되어 이 테이퍼공(31a)을 관통하는 테이퍼볼트(40)에 의해 상기 클램핑수단(30)이 상기 체결홈부(20)에 고정된다.(도1,2 및 도5의 도면부호 32b는 체결홈부의 단부에 클랭핑수단을 밀착고정시키기 위한 단턱부를 나타낸다.)Figure 1 is a perspective view showing a cutting edge clamper according to the present invention, Figure 2 is an exploded perspective view showing the cutting edge clamper according to the present invention. Figure 3 is a perspective view showing a clamping means extracted, Figure 4 is a side view and an enlarged view of the main part in a state where the bolt and the taper bolt are not shown, the present invention is a holder part in which one end of the body is detachably fixed to the cutting device In the cutting edge clamper comprising (10) and a fastening groove (20) to which the clamping means (30) is detachably fastened to the other end of the body, the clamping means (30) has a body in the fastening groove (20) It is integrally fixed, and an upper engaging part 31 and a lower engaging part 32 for holding the cutting edge K are formed at one end of the body, and a plurality of through-holes 32a are formed in the lower engaging part 32. The clamping means 30 is integrally coupled to the fastening groove 20 by a bolt B that is perforated and passes through the through hole 32a, and the inner diameter of the upper engaging part 31 is gradually reduced. A taper hole 31 is formed and the clamping means 30 is fixed to the fastening groove 20 by a taper bolt 40 passing through the taper hole 31a. (FIGS. 1, 2 and 5) Reference numeral 32b denotes a stepped portion for closely fixing the clamping means to the end of the fastening groove.)

상기 도2에서 보는 바와 같이, 상기 클램핑수단(30)은 홀더부(10)의 일측에 연장형성된 체결홈부(20)에 볼트결합으로 체결되되, 상기 클램핑수단(30)의 내측에는 복수의 관통공(33a)이 천공된 보조리브(33)가 형성되어 상기 체결홈부(20)의 일측벽에 형성된 복수의 볼트공(22)에 볼트(B)에 의해 결합된다. 또한, 상기 클램핑수단(30)의 하부물림부(32)에 형성된 관통공(32a)에 대응하는 상기 체결홈부(20)의 또 다른 측벽에는 복수의 볼트공(21)이 형성되어 볼트(B)에 의해 일체로 결합된다.As shown in FIG. 2 , the clamping means 30 is fastened to the fastening groove portion 20 extended on one side of the holder portion 10 by bolting, and a plurality of through holes are inside the clamping means 30 . Auxiliary ribs 33 in which (33a) is perforated are formed and are coupled to a plurality of bolt holes 22 formed in one wall of the fastening groove 20 by bolts (B). In addition, a plurality of bolt holes 21 are formed in another side wall of the fastening groove portion 20 corresponding to the through hole 32a formed in the lower engaging portion 32 of the clamping means 30 to form a bolt (B). are integrally coupled by

상기 도3 및 도4에서 보는 바와 같이, 상기 체결홈부(20)에는 상기 테이퍼공(31a)에 대응하는 볼트공(23)이 형성되고, 상기 볼트공(23)은 테이퍼공(31a)에 대해 상,하부물림부(31,32)에 홀딩되는 절삭날(K) 방향으로 편심되게 형성되며, 상기 테이퍼공(31a)은 상방향으로 절개된다.(도5 참조)3 and 4, a bolt hole 23 corresponding to the tapered hole 31a is formed in the fastening groove 20, and the bolt hole 23 is formed with respect to the tapered hole 31a. It is formed eccentrically in the direction of the cutting edge (K) held by the upper and lower engagement parts (31, 32), and the taper hole (31a) is cut in the upward direction. (See FIG. 5)

즉, 상기 테이퍼공(31a)을 관통하여 이 테이퍼공(31a)과 편심되게 위치한 체결홈부(20)의 볼트공(23)에 테이퍼볼트(40)가 체결되는 경우 상기 상부물림부(31)는 절삭날(K)이 위치하는 방향으로 쏠리게 되어 상기 상부물림부(31)와 하부물림부(32) 사이에 위치하는 절삭날(K)을 보다 더 견고하게 고정시킬 수 있게 된다. 또한, 상기와 같이 상부물림부(31)가 절삭날(K)이 위치하는 방향으로 쏠리는 경우 이 쏠림현상을 더 자유롭게 하기 위해 상기 테이퍼공(31a)의 상부가 절개되는 슬릿부(31b)가 형성되는 것이며, 이 경우 상기 상부물림부(31)의 쏠림현상 및 이 쏠림현상으로부터 다시 탄성적으로 원위치에 복귀시키기 위해 상기 테이퍼공(31a)의 하부에는 탄성이음부(31c)가 구비된다.That is, when the taper bolt 40 is fastened to the bolt hole 23 of the fastening groove 20 eccentrically positioned with the taper hole 31a through the taper hole 31a, the upper engagement part 31 is The cutting edge (K) is tilted in the direction in which it is positioned, so that it is possible to more firmly fix the cutting edge (K) positioned between the upper engagement part (31) and the lower engagement part (32). In addition, as described above, when the upper engaging portion 31 is tilted in the direction in which the cutting edge K is positioned, a slit portion 31b in which the upper portion of the tapered hole 31a is cut is formed in order to further free this tilting phenomenon. In this case, an elastic joint 31c is provided at the lower portion of the tapered hole 31a in order to elastically return to the original position from the pulling phenomenon of the upper engaging portion 31 and the pulling phenomenon.

상기 도2 및 도4에서 보는 바와 같이 상기 테이퍼공(31a)에 체결되는 테이퍼볼트(40)는 머리부(41)가 몸체부 방향으로 외경이 점차적으로 작아지는 테이퍼 형태로 형성되며, 머리부(41)에 인접하는 몸체부 외주면은 밋밋하게 형성된다.As shown in FIGS. 2 and 4, the taper bolt 40 fastened to the taper hole 31a is formed in a tapered shape in which the head part 41 has an outer diameter gradually decreasing in the body part direction, and the head part ( 41) adjacent to the outer peripheral surface of the body portion is formed flat.

즉, 상기 테이퍼볼트(40)가 상기 테이퍼공(31a)을 관통하여 이 테이퍼공(31a)에 편심되어 위치한 체결홈부(20)의 볼트공(23)에 테이퍼볼트(40)의 나선부(42)가 삽이되고 외주면이 밋밋한 형태의 민자부(43)는 일부분이 볼트공(23)에 삽입되고 나머지 일부분은 테이퍼공(31a)의 내주벽에 미세하게 이격된 상태에서 상기 상부물림부(31)가 절삭날(K)이 위치한 방향으로 쏠리는 경우에 상기 테이퍼볼트(40)는 상기 테이퍼공(31a)과 볼트공(23)의 편심이 작아지는 방향으로 미세하게 꺾여 상기 상부물림부(31)와 하부물림부(32) 사이에 위치한 절삭날(K)의 결합을 더욱더 견고하게 고정시키게 된다.That is, the tapered bolt 40 passes through the tapered hole 31a and is eccentrically located in the tapered hole 31a. The spiral portion 42 of the tapered bolt 40 is located in the bolt hole 23 of the fastening groove portion 20 eccentrically located. ) is shoveled and the outer circumferential surface is flat, a part of the private magnetic part 43 is inserted into the bolt hole 23 and the remaining part is slightly spaced apart from the inner peripheral wall of the tapered hole 31a. ) in the direction in which the cutting edge K is located, the taper bolt 40 is minutely bent in a direction in which the eccentricity of the taper hole 31a and the bolt hole 23 decreases, and the upper engagement part 31 And the coupling of the cutting edge (K) located between the lower engagement portion (32) is more firmly fixed.

도5는 본 발명에 따른 절삭날 클램퍼의 사용상태도로서, 상기 홀더부(10) 일측에 일체로 연장연결된 체결홈부(20)에 클램핑수단(30)이 볼트(B) 및 테이퍼볼트(40)에 의해 일체로 결합된 상태에서 상부물림부(31) 및 하부물림부(32) 사이에 고정된 절삭날(K)에 의해 회전되는 피가공물(G)이 절삭되는 과정을 나타낸다.5 is a state diagram of the cutting edge clamper according to the present invention, in which the clamping means 30 is attached to the bolt B and the taper bolt 40 to the fastening groove 20 integrally extended and connected to one side of the holder 10. shows a process in which the workpiece (G) rotated by the cutting edge (K) fixed between the upper engaging part 31 and the lower engaging part 32 is cut in a state integrally coupled by the

10 : 홀더부 20 : 체결홈부
21,22,23 :볼트공 30 : 클램핑수단
31 : 상부물림부 31a : 테이퍼공
31b : 슬릿부 31c : 탄성이음부
32 : 하부물림부 32a : 관통공
32b : 단턱부 33 : 보조리브
33a : 관통공 40 : 테이퍼볼트
41 : 머리부 42 : 나선부
43 : 민자부 B : 볼트
K : 절삭날 G : 피가공물10: holder part 20: fastening groove part
21, 22, 23: bolt hole 30: clamping means
31: upper engagement part 31a: taper hole
31b: slit 31c: elastic joint
32: lower engagement part 32a: through hole
32b: step part 33: auxiliary rib
33a: through hole 40: taper bolt
41: head 42: spiral
43: private sector B: bolt
K : Cutting edge G : Workpiece

Claims (3)

몸체의 일단이 절삭장치에 탈착가능하게 고정되는 홀더부(10)와 몸체의 타단에는 클램핑수단(30)이 탈착가능하게 체결되는 체결홈부(20)가 포함되어 이루어지는 절삭날 클램퍼에 있어서, 상기 클램핑수단(30)은 상기 체결홈부(20)에 몸체가 일체로 고정되고, 몸체의 일단에는 절삭날(K)을 홀딩하기 위한 상부물림부(31)와 하부물림부(32)가 형성되고, 상기 하부물림부(32)에는 복수의 관통공(32a)이 천공되어 이 관통공(32a)을 통하는 볼트(B)에 의해 상기 클램핑수단(30)이 상기 체결홈부(20)에 일체로 결합되며, 상기물림부(31)에도 내경이 점차적으로 작아지는 테이퍼공(31)이 형성되어 이 테이퍼공(31a)을 관통하는 테이퍼볼트(40)에 의해 상기 클램핑수단(30)이 상기 체결홈부(20)에 고정되는 것을 특징으로 하는 절삭날 클램퍼.In the cutting edge clamper comprising a holder part (10) having one end of the body detachably fixed to the cutting device and a fastening groove part (20) to which a clamping means (30) is detachably fastened to the other end of the body, the clamping In the means 30, the body is integrally fixed to the fastening groove 20, and an upper engaging part 31 and a lower engaging part 32 for holding the cutting edge K are formed at one end of the body, and the A plurality of through-holes 32a are perforated in the lower engagement portion 32, and the clamping means 30 is integrally coupled to the fastening groove 20 by a bolt B passing through the through-holes 32a, A taper hole 31 whose inner diameter is gradually reduced is also formed in the engagement portion 31, and the clamping means 30 is connected to the fastening groove portion 20 by the taper bolt 40 penetrating the taper hole 31a. Cutting edge clamper, characterized in that fixed to the. 청구항 1에 있어서, 상기 체결홈부(20)에는 상기 테이퍼공(31a)에 대응하는 볼트공(23)이 형성되고, 상기 볼트공(23)은 테이퍼공(31a)에 대해 상,하부물림부(31,32)에 홀딩되는 절삭날(K) 방향으로 편심되게 형성되며, 상기 테이퍼공(31a)은 상방향으로 절개된 것을 특징으로 하는 절삭날 클램퍼.The method according to claim 1, The fastening groove (20) is formed with a bolt hole (23) corresponding to the tapered hole (31a), the bolt hole (23) with respect to the taper hole (31a), upper and lower engagement parts ( 31 and 32) are formed eccentrically in the direction of the cutting edge (K), and the tapered hole (31a) is cut in the upward direction. 청구항 1에 있어서, 상기 테이퍼공(31a)에 체결되는 테이퍼볼트(40)는 머리부(41)가 몸체부 방향으로 외경이 점차적으로 작아지는 테이퍼 형태로 형성되며, 머리부(41)에 인접하는 몸체부 외주면은 밋밋하게 형성되는 것을 특징으로 하는 절삭날 클램퍼.The method according to claim 1, The taper bolt (40) fastened to the taper hole (31a) is formed in a tapered shape in which the head portion 41 is gradually reduced in outer diameter toward the body portion, adjacent to the head portion (41) Cutting edge clamper, characterized in that the outer peripheral surface of the body is formed flat.
KR1020190163890A 2019-12-10 2019-12-10 A clamping device for cutting blade KR20210073259A (en)

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