KR100918175B1 - Fitting structure for cutting part of tools - Google Patents

Fitting structure for cutting part of tools Download PDF

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Publication number
KR100918175B1
KR100918175B1 KR1020090060529A KR20090060529A KR100918175B1 KR 100918175 B1 KR100918175 B1 KR 100918175B1 KR 1020090060529 A KR1020090060529 A KR 1020090060529A KR 20090060529 A KR20090060529 A KR 20090060529A KR 100918175 B1 KR100918175 B1 KR 100918175B1
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KR
South Korea
Prior art keywords
cutting tool
bolt
cutting
pin
insertion groove
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KR1020090060529A
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Korean (ko)
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예상백
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예상백
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Priority to KR1020090060529A priority Critical patent/KR100918175B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
    • 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
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/02—Reamers with inserted cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2240/00—Details of connections of tools or workpieces
    • B23C2240/24—Connections using screws

Abstract

An assembling structure of a cutting rod for a cutting tool is provided to increase the workability by forming an insertion groove and a pin mounting hole at a body with a plurality of groove making processes. An assembling structure of a cutting rod for a cutting tool comprises a body(1) and a cutting rod(2). An insertion groove(1a) is formed on the bottom of the body. A female screw unit(1b) is formed in the inside central unit of the insertion groove. Two pin mounting holes(1c) are formed at both sides of the body to be the insertion hole. A pin(3) is by force inserted in a pin mounting hole. An inserting projection unit(2b) coinciding with the insertion groove of the body is protruded on the top side of the cutting rod. A cutting unit(2c) coinciding with the diameter of the pin is formed on the both side of the inserting projection unit. A bolt insertion groove(2d) is formed on the central unit of the cutting rod. A bolt head unit(2e) is formed at the lower side of the bolt insertion groove. It is inserted in to the bolt head unit and the bolt insertion groove of the cutting rod that a bolt(4) whose tip end unit is connected to a female screw unit of the body. A dowel pin(5) for preventing the secession of the bolt is connected in the central unit of the bolt.

Description

절삭공구용 절삭구의 조립구조{FITTING STRUCTURE FOR CUTTING PART OF TOOLS}Assembly structure of cutting tool for cutting tool {FITTING STRUCTURE FOR CUTTING PART OF TOOLS}

본 발명은 드릴링머신과 밀링머신, 엔드밀, 리머, 커터 등에 사용되는 절삭공구에 관한 것으로서, 더욱 상세하게는 절삭공구에 구비된 절삭 부위인 절삭구를 착탈식으로 설치함으로써 절삭공구 전체를 교체할 필요없이 절삭구만 간편하게 교체할 수 있어 유지보수비용을 용이하게 절감할 수 있도록 하는 절삭공구용 절삭구의 조립구조에 관한 것이다.The present invention relates to a cutting tool used in a drilling machine, a milling machine, an end mill, a reamer, a cutter, etc. More specifically, it is necessary to replace the entire cutting tool by detachably installing a cutting tool which is a cutting part provided in the cutting tool. The present invention relates to an assembly structure of cutting tools for cutting tools that can easily replace only cutting tools without any maintenance cost.

일반적으로 엔드밀이나 커터 등과 같은 공작기계에는 절삭공구가 착탈식으로 결합되는 것이며, 절삭공구에 따라 피가공물에 평면가공이나 절삭가공 등을 수행할 수 있는 것이다.Generally, a cutting tool is detachably coupled to a machine tool such as an end mill or a cutter, and according to the cutting tool, a planar processing or a cutting process may be performed on the workpiece.

이러한 절삭공구는 공작기계에 고정하기 위한 몸체와 피가공물을 가공하기 위한 절삭날이 일체로 형성되어 있기 때문에, 작업의 종류와 가공 크기 등에 따라 다양한 절삭날을 구비하여야 하므로 각각의 용도에 맞추어서 절삭공구를 별도로 제작되어 비효율적이었다.Since these cutting tools are integrally formed with a body for fixing to a machine tool and a cutting edge for processing a work piece, various cutting edges should be provided according to the type of work and the size of the work. It was produced separately and was inefficient.

또한 상기 절삭공구의 재질과 관련하여 그 비용이 매우 높기 때문에, 절삭공 구의 절삭날 부위가 마모 또는 파손될 때, 절삭공구 전체를 교체하거나 날부위를 재연마하여 사용하게 되어 까다로운 작업성과 적지 않은 시간으로 인하여 원가 상승이 발생되는 것이다.In addition, since the cost is very high in relation to the material of the cutting tool, when the cutting edge portion of the cutting tool is worn or damaged, the entire cutting tool or the regrinding of the blade is used. This is a cost increase.

그래서 종래에는 절삭날를 구비한 절삭구를 교체할 수 있는 기술이 개발되는 바, 이는 절삭구를 교체 사용할 수 있어 절삭공구의 원가를 절감하게 된다.Therefore, in the related art, a technology for replacing a cutting tool having a cutting edge is developed, which can replace and use the cutting tool, thereby reducing the cost of the cutting tool.

즉 종래에는 특허출원 제10-2002-79404호로 출원된 기술이 개발되었으며, 이는 몸체의 단부에 절삭구설치홈과 삽입돌기를 형성하고, 상기 몸체의 절삭구설치홈과 삽입돌기에 결합되는 절삭구가 상기 몸체에 배치되어 두 개의 나사로 결합 고정되는 구조를 이루고 있다.That is, in the related art, a technology filed by Patent Application No. 10-2002-79404 has been developed, which forms a cutting tool installation groove and an insertion protrusion at an end of the body, and a cutting tool coupled to the cutting tool installation groove and the insertion protrusion of the body. Is disposed on the body to form a structure that is coupled and fixed with two screws.

그러면 상기 절삭구를 교체하기 위하여, 나사를 풀어낸 후에 다른 절삭구로교체하고 다시 나사를 죄어서 절삭구의 교체 작업을 완료할 수 있는 것이다.Then, in order to replace the cutting tool, it is possible to complete the replacement of the cutting tool by loosening the screw, replacing it with another cutting tool, and tightening the screw again.

그러나 상기와 같은 종래 기술은 몸체의 단부에 형성되는 절삭구설치홈의 내부에 삽입돌기가 일체로 형성되기 때문에, 절삭구를 바른 자세로 설치하기 위한 삽입돌기로 인하여 몸체의 단부를 가공하기가 매우 힘들어서 작업성이 떨어지며, 이에 따라 작업 시간에 의한 단가의 상승을 초래하게 된다는 단점이 있다.However, in the prior art as described above, since the insertion protrusion is integrally formed inside the cutting tool installation groove formed at the end of the body, it is very difficult to process the end of the body due to the insertion protrusion for installing the cutting tool in a correct posture. It is difficult and the workability is lowered, and thus there is a disadvantage in that the unit cost is increased by the working time.

또한 절삭구를 몸체의 절삭구설치홈과 삽입돌기에 맞추어서 배치한 뒤에 절삭구를 고정하기 위하여 나사로 절삭구를 고정하기 때문에, 작은 크기의 나사가 절삭구에 결합된 상태를 유지하는 것이 아니라 별도로 분리되는 구조이므로 작은 크기의 나사의 이탈로 인하여 나사의 분실을 초래하여 절삭구 교체 작업의 지연이 빈번하게 발생된다는 단점이 있다.In addition, since the cutting tool is arranged in accordance with the cutting tool installation groove and the insertion protrusion of the body, the cutting tool is fixed with screws to fix the cutting tool, so that a small screw is not separated from the cutting tool, but separated separately. Because of the structure, the screw is lost due to the detachment of the screw of a small size, so that the cutting tool replacement work is frequently delayed.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 절삭공구에 구비된 절삭 부위인 절삭구를 착탈식으로 설치함과 아울러 몸체와 절삭구의 구조를 개선함으로써, 절삭공구 전체를 교체할 필요없이 절삭구만 간편하게 교체할 수 있어, 유지보수비용을 용이하게 절감할 뿐만 아니라 몸체와 절삭구의 가공성을 향상하여 제품의 단가를 절감할 수 있는 절삭공구용 절삭구의 조립구조를 제공하는 데 있다.The present invention has been made in order to solve the problems of the prior art as described above, the object of the present invention is to remove the cutting tool, which is a cutting portion provided in the cutting tool detachably and to improve the structure of the body and the cutting tool, Since only the cutting tool can be replaced easily without the need to replace the whole tool, it not only reduces the maintenance cost but also provides the assembly structure of the cutting tool for cutting tools that can reduce the cost of products by improving the processability of the body and cutting tools. There is.

상기와 같은 목적을 달성하기 위하여, 본 발명은 절삭날을 구비한 절삭구가 절삭공구의 몸체에 조립식으로 설치되는 것으로 이루어지는 절삭공구용 절삭구의 조립구조에 있어서, 몸체의 하단부에 삽입홈이 형성되고, 상기 삽입홈의 내부 중앙부에 암나사부가 형성되고, 두 개의 핀설치홀이 상기 몸체의 양측면에서 삽입홈으로 관통 형성되고, 상기 핀설치홀에 핀이 억지끼움되며, 상기 몸체의 삽입홈과 일치하는 삽입돌부가 절삭구의 상부면에 돌출 형성되고, 상기 핀의 직경과 일치하는 절개부가 상기 핀의 중앙부에 삽입 가능하게 상기 삽입돌부의 양측에 형성되고, 상기 절삭구의 중앙부에 볼트삽입홀이 형성됨과 아울러 상기 볼트삽입홀의 하부에 볼트머리내장부가 형성되며, 선단부가 상기 몸체의 암나사부에 체결되는 볼트가 상기 절삭구의 볼트머리내장부과 볼트삽입홀에 삽입되고, 상기 볼트의 이탈을 방지하는 이탈방지용 다월핀이 상기 볼트의 중앙부에 체결되는 것을 포함하여 이루어지는 절 삭공구용 절삭구의 조립구조를 제공한다.In order to achieve the above object, the present invention in the assembling structure of the cutting tool for the cutting tool consisting of a cutting tool having a cutting edge is installed in the body of the cutting tool, the insertion groove is formed in the lower end of the body A female thread is formed at an inner center portion of the insertion groove, and two pin installation holes are formed through the insertion grooves at both sides of the body, and the pins are inserted into the pin installation holes and coincide with the insertion grooves of the body. Insertion protrusions are formed to protrude on the upper surface of the cutting tool, a cutout portion corresponding to the diameter of the pin is formed on both sides of the insertion protrusion to be inserted into the central portion of the pin, the bolt insertion hole is formed in the center of the cutting tool A bolt head inner part is formed at the lower part of the bolt insertion hole, and a bolt whose end portion is fastened to the female screw part of the body is a bolt of the cutting tool. It is inserted into the head and the bolt insertion hole, and provides an assembly structure of the cutting tool cutting tool comprising a fastening prevention dowel pin for preventing the separation of the bolt is fastened to the central portion of the bolt.

이와 같이 이루어지는 본 발명에 의한 절삭공구용 절삭구의 조립구조는 절삭구의 삽입돌부가 몸체의 삽입홈에 삽입되면서 절삭구의 절개부가 몸체의 핀설치홀에 설치된 핀에 결합되는 구조이기 때문에, 다수의 홈 가공으로 몸체에 삽입홈과 핀설치홀을 형성할 수 있어 가공성이 향상되어 가공 시간을 절감할 수 있으며, 몸체에 암나사부도 홈가공과 탭가공으로 형성할 수 있어 가공성이 우수하다는 이점이 있다.Since the assembling structure of the cutting tool for cutting tools according to the present invention is a structure in which the cutting portion of the cutting tool is coupled to the pin installed in the pin installation hole of the body while the insertion protrusion of the cutting tool is inserted into the insertion groove of the body, As the insertion groove and the pin installation hole can be formed in the body, the workability can be improved and the processing time can be reduced. The female thread part can be formed by the groove processing and the tap processing in the body.

또한 상기 절삭구에 설치되는 볼트가 다월핀에 의해 이탈되지 않기 때문에, 볼트의 이탈을 방지할 수 있어 절삭구의 조립과 교체를 신속하게 수행할 수 있으며, 절삭구의 삽입돌부, 절개부, 볼트머리내장부, 볼트삽입홀도 쉬운 가공으로 형성할 수 있어 절삭구의 가공성도 우수하다는 이점이 있다.In addition, since the bolts installed in the cutting tool are not separated by the dowel pins, the bolts can be prevented from being separated and the assembly and replacement of the cutting tools can be quickly performed. The part and the bolt insertion hole can also be formed by easy machining, and there is an advantage that the workability of the cutting tool is also excellent.

특히 상기 절삭구에 형성되는 절개부가 핀과 결합되는 구조이면서 볼트와 체결되는 다월핀을 절개부를 통하여 잡아서 일정한 위치에 둘 수 있기 때문에, 절삭구의 절개부가 절삭구의 자세를 바로하는 기능, 다월핀의 위치 설정 기능 등과 같이 복합적인 기능을 용이하게 수행할 수 있다는 이점이 있다.In particular, since the cutout formed in the cutting tool is coupled to the pin and can hold the dowel pin fastened to the bolt through the cutout to be placed at a predetermined position, the function of cutting the cutting tool corrects the posture of the cutting tool, the position of the dowel pin. There is an advantage that a complex function such as a setting function can be easily performed.

이하 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 더욱 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 1 내지 도 4는 본 발명에 의한 절삭공구용 절삭구의 조립구조를 나타내는 도면으로서, 상기 절삭공구는 공작기계에 장착하기 위한 몸체(1)와 피가공물을 절삭하기 위한 절삭구(2)로 이루어지되, 절삭날(2a)을 구비한 절삭구(2)가 몸체(1)에 조립식으로 설치되는 구조이다.1 to 4 is a view showing the assembly structure of the cutting tool for cutting tool according to the present invention, the cutting tool consists of a body (1) for mounting on a machine tool and a cutting tool (2) for cutting the workpiece However, the cutting tool (2) having a cutting edge (2a) is a structure that is prefabricated to the body (1).

즉 상기 몸체(1)의 하단부에는 삽입홈(1a)이 형성되고, 상기 삽입홈(1a)의 내부 중앙부에는 암나사부(1b)가 형성되고, 두 개의 핀설치홀(1c)이 상기 몸체(1)의 양측면에서 상기 삽입홈(1a)으로 관통 형성된다.That is, an insertion groove 1a is formed at the lower end of the body 1, an internal thread part 1b is formed at an inner central portion of the insertion groove 1a, and two pin installation holes 1c are formed at the body 1. It is formed through the insertion groove (1a) on both sides of the).

그리고 상기 몸체(1)의 핀설치홀(1c)에는 핀(3)이 억지끼움되어 견고하게 고정된다.And the pin (3) is firmly fixed to the pin installation hole (1c) of the body (1).

한편 상기 절삭구(2)에는 절삭날(2a)이 구비됨과 아울러 삽입돌부(2b)와 두 개의 절개부(2c), 볼트삽입홀(2d), 볼트머리내장부(2e)를 구비하고 있다.On the other hand, the cutting tool 2 is provided with a cutting edge 2a, and has an insertion protrusion 2b, two cutouts 2c, a bolt insertion hole 2d, and a bolt head inner portion 2e.

즉 상기 삽입돌부(2b)는 상기 몸체(1)의 삽입홈(1a)과 일치하는 구조이고, 절삭구(2)의 상부면에 일체로 돌출 형성되며, 후술하는 다월핀을 내장할 수 있는 내경을 구비한 중공 형상으로 형성된다.That is, the insertion protrusion 2b has a structure coinciding with the insertion groove 1a of the body 1, is integrally formed on the upper surface of the cutting tool 2, and has an inner diameter capable of embedding a dowel pin to be described later. It is formed into a hollow shape provided with.

상기 절개부(2c)는 상기 핀(3)의 직경과 일치하는 폭으로 형성되어 상기 핀(3)의 중앙부에 삽입 가능하게 상기 삽입돌부(2b)의 양측에 각각 형성된다.The cutouts 2c are formed on both sides of the insertion protrusions 2b so as to have widths corresponding to the diameters of the pins 3 and to be inserted into the center portions of the pins 3.

상기 절삭구(2)의 중앙부에는 볼트삽입홀(2d)이 형성되고, 상기 볼트삽입홀(2d)의 하부에는 볼트머리내장부(2e)가 형성되어, 상기 절삭구(2)의 볼트머리내장부(2e)와 볼트삽입홀(2d)를 통하여 볼트(4)가 삽입 배치된다.A bolt insertion hole 2d is formed in the center portion of the cutting hole 2, and a bolt head internal portion 2e is formed at the lower portion of the bolt insertion hole 2d, so that the bolt head interior of the cutting hole 2 is formed. The bolt 4 is inserted and arranged through the portion 2e and the bolt insertion hole 2d.

그리고 상기 볼트(4)의 선단부는 상기 몸체(1)의 암나사부(1b)에 체결되며, 상기 볼트(4)의 나사 부위에는 볼트(4)가 절삭구(2)에 결합된 상태를 유지하기 위 한 다월핀(5)이 설치된다.And the front end of the bolt 4 is fastened to the female threaded portion (1b) of the body (1), the screw portion of the bolt (4) to maintain the state in which the bolt 4 is coupled to the cutting tool (2) Dowel pin (5) is installed.

즉 상기 다월핀(5)은 상기 볼트(4)의 이탈을 방지하는 이탈방지용으로 사용되는 바, 이는 상기 볼트(4)가 일정한 거리로 상하 이동 가능하게 하면서 절삭구(2)로부터 이탈되지 않도록 하는 것이다.In other words, the dowel pin 5 is used to prevent the departure of the bolt 4 to prevent the departure, which allows the bolt (4) to move up and down at a predetermined distance so as not to be separated from the cutting tool (2) will be.

이와 같이 이루어지는 본 발명에 의한 절삭공구용 절삭구의 조립구조는 다음과 같이 작용한다.The assembly structure of the cutting tool for cutting tools according to the present invention thus formed acts as follows.

우선 몸체(1)와 절삭구(2)의 조립 과정을 살펴보면, 몸체(1)에 형성되는 두 개의 핀설치홀(1c)에 핀(3)을 억지끼움방식으로 설치하여 핀(3)의 선단부의 일부가 상기 몸체(1)의 삽입홈(1a)에 돌출되도록 한다.First, assembling process of the body 1 and the cutting tool 2, the pin 3 is installed in the two pin mounting holes (1c) formed in the body (1) by interference fit method to the front end of the pin (3) Part of the body 1 to protrude into the insertion groove (1a) of the.

그리고 볼트(4)를 절삭구(2)의 볼트머리내장부(2e)와 볼트삽입홀(2d)을 통하여 삽입 배치한 뒤, 상기 절삭구(2)의 볼트삽입홀(2d)을 통과한 볼트(4)의 선단부에 다월핀(5)를 가볍게 체결한다.Then, the bolt 4 is inserted and arranged through the bolt head inner portion 2e of the cutting tool 2 and the bolt insertion hole 2d, and then the bolt passed through the bolt insertion hole 2d of the cutting tool 2. Lightly fasten the dowel pin (5) to the tip of (4).

상기와 같이 다월핀(5)의 볼트(4)의 선단부에 체결한 뒤, 다월핀(5)을 별도의 공구로 잡고 볼트(4)를 회전시켜서 볼트(4)의 중앙부에 다월핀(5)을 위치시킨다.After fastening to the distal end of the bolt 4 of the dowel pin 5 as described above, hold the dowel pin 5 with a separate tool and rotate the bolt 4 to form the dowel pin 5 at the center of the bolt 4. Locate it.

물론 상기 다월핀(5)은 절삭구(2)의 삽입돌부(2b)의 내부에 위치하게 되는 바, 이 때 상기 절삭구(2)의 삽입돌부(2b)에 형성된 절개부(2c)를 통하여 공구로 다월핀(5)을 잡을 수 있으므로, 상기 다월핀(5)을 볼트(4)의 중앙부 즉 적정 위치에 배치할 수 있는 것이다.Of course, the dowel pin 5 is positioned inside the insertion protrusion 2b of the cutting tool 2, and at this time, through the cutout 2c formed in the insertion protrusion 2b of the cutting tool 2. Since the dowel pins 5 can be held by the tool, the dowel pins 5 can be disposed at the center of the bolt 4, that is, at a proper position.

아무튼 상기와 같이 볼트(4)의 이탈을 방지할 수 있도록 볼트(4)를 절삭 구(2)에 설치한 뒤, 절삭구(2)의 삽입돌부(2b)를 몸체(1)의 삽입홈(1a)에 삽입하면서 절삭구(2)의 절개부(2c)와 핀(3)을 일치시킨다.Anyway, the bolt 4 is installed in the cutting tool 2 so as to prevent the bolt 4 from being separated as described above, and then the insertion protrusion 2b of the cutting tool 2 is inserted into the insertion groove of the body 1. While inserting into 1a), the cutout 2c of the cutting tool 2 coincides with the pin 3.

이러한 상태에서 볼트(4)를 회전시켜서 볼트(4)의 선단부를 몸체(1)의 암나사부(1b)에 체결하여 몸체(1)와 절삭구(2)를 일체화하게 된다.In this state, the bolt 4 is rotated to fasten the tip of the bolt 4 to the female screw portion 1b of the body 1 to integrate the body 1 and the cutting tool 2.

상기와 같이 몸체(1)와 절삭구(2)를 볼트(4)로 연결한 상태가 조립를 완성한 상태이며, 이렇게 조립된 절삭공구를 공작기계에 장착하여 평면가공이나 절삭가공 등을 수행할 수 있는 것이다.As described above, the state in which the body 1 and the cutting tool 2 are connected with the bolts 4 is completed, and the assembled cutting tool is mounted on the machine tool to perform planar processing or cutting processing. will be.

그리고 상기 절삭구(2)를 교체할 경우, 볼트(4)가 절삭구에 결합된 상태를 유지하고 있어 볼트(4)의 분실을 미연에 방지할 수 있다.When the cutting tool 2 is replaced, the bolt 4 is maintained in a state coupled to the cutting tool, thereby preventing the loss of the bolt 4 in advance.

도 1은 본 발명에 의한 절삭구의 조립구조에 적용되는 절삭공구의 일 예를 나타내는 사시도,1 is a perspective view showing an example of a cutting tool applied to the assembly structure of the cutting tool according to the present invention;

도 2는 도 1의 일부 분해 사시도,2 is a partially exploded perspective view of FIG. 1;

도 3은 본 발명에 의한 절삭공구용 절삭구의 조립구조의 단면도,3 is a cross-sectional view of an assembly structure of a cutting tool for cutting tool according to the present invention;

도 4는 본 발명에 의한 절삭공구용 절삭구의 조립구조를 나타내는 분해 단면도이다.Figure 4 is an exploded cross-sectional view showing the assembly structure of the cutting tool for cutting tools according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 몸체1: body

2 : 절삭구2: cutting tool

3 : 핀3: pin

4 : 볼트4: Bolt

5 : 다월핀5: Dowel pin

Claims (1)

절삭날을 구비한 절삭구가 절삭공구의 몸체에 조립식으로 설치되는 것으로 이루어지는 절삭공구용 절삭구의 조립구조에 있어서,In the assembling structure of a cutting tool for cutting tool, wherein the cutting tool provided with a cutting edge is installed in the body of the cutting tool, 몸체의 하단부에 삽입홈이 형성되고,Insertion groove is formed in the lower end of the body, 상기 삽입홈의 내부 중앙부에 암나사부가 형성되고,A female thread portion is formed at an inner central portion of the insertion groove, 두 개의 핀설치홀이 상기 몸체의 양측면에서 삽입홈으로 관통 형성되고,Two pin installation holes are formed through the insertion grooves on both sides of the body, 상기 핀설치홀에 핀이 억지끼움되며,The pin is inserted into the pin installation hole, 상기 몸체의 삽입홈과 일치하는 삽입돌부가 절삭구의 상부면에 돌출 형성되고,Insertion protrusions corresponding to the insertion groove of the body protrudes on the upper surface of the cutting tool, 상기 핀의 직경과 일치하는 절개부가 상기 핀의 중앙부에 삽입 가능하게 상기 삽입돌부의 양측에 형성되고,Cutout portions matching the diameter of the pins are formed on both sides of the insertion protrusions to be inserted into the central portion of the pins, 상기 절삭구의 중앙부에 볼트삽입홀이 형성됨과 아울러 상기 볼트삽입홀의 하부에 볼트머리내장부가 형성되며,A bolt insertion hole is formed at the center of the cutting hole, and a bolt head internal part is formed at the lower part of the bolt insertion hole. 선단부가 상기 몸체의 암나사부에 체결되는 볼트가 상기 절삭구의 볼트머리내장부와 볼트삽입홀에 삽입되고,A bolt, whose end portion is fastened to the female screw portion of the body, is inserted into the bolt head inner portion and the bolt insertion hole of the cutting tool, 상기 볼트의 이탈을 방지하는 이탈방지용 다월핀이 상기 볼트의 중앙부에 체결되는 것을 포함하여 이루어지는 절삭공구용 절삭구의 조립구조.Assembling structure of the cutting tool for cutting tool comprising a fastening prevention dowel pin for preventing the separation of the bolt is fastened to the central portion of the bolt.
KR1020090060529A 2009-07-03 2009-07-03 Fitting structure for cutting part of tools KR100918175B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5391022A (en) 1991-03-13 1995-02-21 Mitsubishi Materials Corporation Cutting tool
JPH10202414A (en) 1997-01-27 1998-08-04 Mitsubishi Automob Eng Co Ltd Cutter device for machine tool
KR100635468B1 (en) 2005-05-24 2006-10-18 신한다이아몬드공업 주식회사 Cutting tools with a separative tip portion and method for coupling tip portion
KR20080031933A (en) * 2005-08-04 2008-04-11 이스카 엘티디. Tool assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5391022A (en) 1991-03-13 1995-02-21 Mitsubishi Materials Corporation Cutting tool
JPH10202414A (en) 1997-01-27 1998-08-04 Mitsubishi Automob Eng Co Ltd Cutter device for machine tool
KR100635468B1 (en) 2005-05-24 2006-10-18 신한다이아몬드공업 주식회사 Cutting tools with a separative tip portion and method for coupling tip portion
KR20080031933A (en) * 2005-08-04 2008-04-11 이스카 엘티디. Tool assembly

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