KR20190085664A - Cutting wheel disassembling and assembling device - Google Patents

Cutting wheel disassembling and assembling device Download PDF

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Publication number
KR20190085664A
KR20190085664A KR1020180003799A KR20180003799A KR20190085664A KR 20190085664 A KR20190085664 A KR 20190085664A KR 1020180003799 A KR1020180003799 A KR 1020180003799A KR 20180003799 A KR20180003799 A KR 20180003799A KR 20190085664 A KR20190085664 A KR 20190085664A
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South Korea
Prior art keywords
fastening
cutting wheel
protrusion
coupling
unit
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KR1020180003799A
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Korean (ko)
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윤옥
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윤옥
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

Disclosed in the present invention is a device for detaching and attaching a cutting wheel, comprising: a fastening unit having one end coupled to a rotary shaft of a tool, and a fastening shaft at the central portion of the other end; a support portion having the central portion penetrated by the fastening unit, and composed of a fastening protrusion radially formed at one end for a first fastening hole and second fastening hole of a cutting wheel to be individually located thereat, and a latching member having a latching protrusion at an end portion and radially arranged at the other end which does not overlap with the fastening protrusion; a fixating unit fixated at an upper end of the fastening shaft, having a fastening groove formed at a diagonal position of both side walls, to be alternately rotated while being overlapped with the fastening protrusion to be coupled to the latching protrusion, and, when the fastening groove is coupled to the latching protrusion, pressurizing a surface of the cutting wheel; and an elastic unit provided between the fastening unit and the support unit, and providing elasticity for the support unit to be pressurized towards the fixating unit. The fastening groove and the latching protrusion are coupled in an uneven shape. Therefore, according to the present invention, the cutting wheel can be simply mounted and separated. In addition, when the cutting wheel is mounted, the latching protrusion formed at the latching member of the support unit is coupled to the fastening groove of the fixating unit in an uneven shape for the support unit to be fixated at the fixating unit. Therefore, a shaking phenomenon of the cutting wheel is prevented even when the cutting wheel is used while being laid or stood, thereby preventing the cutting wheel from being broken.

Description

절삭 휠 탈부착장치 {CUTTING WHEEL DISASSEMBLING AND ASSEMBLING DEVICE}[0001] CUTTING WHEEL DISASSEMBLING AND ASSEMBLING DEVICE [0002]

본 발명은 절삭 휠 탈부착장치에 관한 것으로, 더욱 상세하게는 절삭 휠을 그라인더 등과 같은 공구의 회전축에 고정시킬 수 있는 절삭 휠 탈부착장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting-wheel attaching / detaching apparatus, and more particularly, to a cutting-wheel attaching / detaching apparatus capable of fixing a cutting tool to a rotary shaft of a tool such as a grinder or the like.

일반적으로 절삭 휠은 가공물을 절단하거나 가공물의 표면을 연삭하여 가공할 수 있도록 구비되는 공구의 일종이다. 이러한 절삭 휠은 전동모터와 같은 동력장치를 포함하는 연마기의 회전축 상에 장착되어 작동된다.Generally, a cutting wheel is a kind of tool provided for cutting a workpiece or grinding the surface of the workpiece. These cutting wheels are mounted and operated on the rotating shaft of a grinder including a power device such as an electric motor.

즉, 절삭 휠은 연마기의 회전축에 삽입한 상태에서 휠 너트를 조여 사용하게 되며, 교환시 휠 너트를 푼 상태에서 재결합시키게 된다.That is, the cutting wheel is inserted into the rotating shaft of the grinder, and the wheel nut is tightened. When the wheel nut is exchanged, the wheel nut is disassembled.

이러한, 절삭 휠의 잠금 구조와 관련된 기술이 한국등록특허 제1737890호에 제안된 바 있다.Such a technique relating to the locking structure of the cutting wheel has been proposed in Korean Patent No. 1737890.

특허문헌 1은 복수의 고정 돌기가 중심부를 기준으로 있는 원판유닛; 원판유닛이 일정 거리 이동 가능하고 회전 가능하게 중앙부에 결합되며, 원판유닛이 일정 거리만큼 탄력적으로 지지되도록 구성되는 홀더본체 및 복수의 고정 돌기에 상응하는 복수의 고정 홀이 마련되며, 원판유닛 상에 위치 고정되도록 홀더본체의 중앙부에 결합되는 고정유닛을 포함한다.Patent Document 1 discloses an image forming apparatus in which a plurality of fixing protrusions are disposed at the center of a disc unit; A plurality of fixing holes corresponding to the plurality of fixing protrusions are provided on the disc unit and the holder unit is configured such that the disc unit is movable at a predetermined distance and is rotatably coupled to the center portion such that the disc unit is elastically supported by a certain distance, And a fixed unit coupled to a central portion of the holder body so as to be fixed in position.

그러나 특허문헌 1은 절단휠을 원판유닛에 밀착시킨 상태에서 가압 및 회전시키면 스프링이 압축되고, 절단휠을 높으면 스프링이 신장되면서 절단휠이 고정되는데, 절단휠을 눕혀 사용하는 경우 절단휠의 단부가 눌려지므로 절단휠의 떨림 현상을 초래하는 문제점이 있다.However, in Patent Document 1, the spring is compressed when the cutting wheel is in close contact with the original unit. When the cutting wheel is raised, the spring is stretched to fix the cutting wheel. When the cutting wheel is laid down, There is a problem that the cutting wheel tilts.

한국등록특허 제1737890호 (등록일: 2017.05.15.)Korean Patent No. 1737890 (Registered on May 15, 2015)

본 발명은 상기와 같은 점을 감안하여 안출된 것으로서, 본 발명의 해결과제는, 절삭 휠을 간단하게 장착 및 분리할 수 있으면서, 절삭 휠의 장착시 지지부의 걸림부재에 형성된 걸림돌기를 고정부의 결속홈에 요철(凹凸) 형태로 결합하면서 지지부를 고정부에 고정시킴으로써 절삭 휠을 눕히거나 세워서 사용하여도 절삭 휠의 떨림 현상을 방지하게 한 절삭 휠 탈부착장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a cutting tool which can easily mount and separate a cutting wheel, It is an object of the present invention to provide a cutting-wheel attaching / detaching / attaching / detaching / attaching / detaching / attaching / detaching / attaching / attaching / cutting device.

상기 목적을 달성하기 위한 본 발명에 따른 절삭 휠 탈부착장치는, 공구의 회전축에 일단이 결합되고, 타단 중심부에 체결축이 구비되는 체결부; 상기 체결축에 중심부가 관통되며, 절삭 휠의 제1, 2 결속홀이 각각 위치되도록 일단에 방사상으로 형성된 결속돌기와, 걸림돌기가 단부에 형성되면서 상기 결속돌기와 중첩되지 않는 타단에 방사상으로 배치된 걸림부재로 구성되는 지지부; 상기 체결축의 상단에 고정되며, 상기 결속돌기와 중첩된 상태에서 교차 회전되면서 상기 걸림돌기와 결합되도록 결속홈이 양측벽 대각 위치에 형성되어 상기 결속홈이 상기 걸림돌기에 결합시 절삭 휠의 표면을 가압하는 고정부; 및 상기 체결부와 상기 지지부의 사이에 구비되어 상기 지지부를 상기 고정부 방향으로 가압하도록 탄성력을 제공하는 탄성부를 포함하며, 상기 결속홈과 상기 걸림돌기는 요철(凹凸) 형태로 결합될 수 있다.In order to accomplish the above object, according to the present invention, there is provided an apparatus for attaching and detaching a cutting wheel, comprising: a fastening part having one end coupled to a rotary shaft of a tool and a fastening shaft provided at a center of the other end; A coupling protrusion formed radially at one end so that the central portion of the coupling shaft passes through the coupling shaft and the first and second coupling holes of the cutting wheel are positioned respectively; and a coupling protrusion formed at the other end, ; And a fastening groove formed at a diagonal position on both sides of the fastening shaft so as to be engaged with the fastening protrusion while being cross-rotated while being superimposed on the fastening protrusion so as to press the surface of the cutting wheel when the fastening groove is engaged with the fastening protrusion government; And an elastic portion provided between the coupling portion and the support portion to provide an elastic force to urge the support portion in the direction of the fixed portion, wherein the coupling groove and the engagement protrusion can be coupled with each other in a concavo-convex shape.

상기 결속홈은 정면 형상이 수평부와 수직부로 구성된 형태로 형성될 수 있다.The binding groove may be formed in a shape in which a front shape is formed of a horizontal portion and a vertical portion.

상기 고정부 및 상기 결속돌기는 일자 형상, 일자의 양단부에 직교 방향으로 마감된 형상 및 일자의 양단부에 원으로 마감된 형상 중 어느 하나의 형상으로 형성될 수 있다.The fixing portion and the coupling protrusion may be formed in any one of a straight shape, a shape closed at both ends of the shape in the orthogonal direction, and a shape closed at both ends of the shape of the circle.

상기 결속돌기는 양측으로 분할 형성될 수 있다.The coupling protrusion may be divided into two sides.

상기 지지부는 상기 걸림부재의 반대면에 상기 체결부의 외주면을 감싸도록 연장된 가림부재가 구비될 수 있다.The supporting portion may be provided on the opposite surface of the engaging member with a covering member extending to surround the outer circumferential surface of the engaging portion.

본 발명에 의하면, 절삭 휠을 간단하게 장착 및 분리할 수 있으면서, 절삭 휠의 장착시 지지부의 걸림부재에 형성된 걸림돌기를 고정부의 결속홈에 요철(凹凸) 형태로 결합하면서 지지부를 고정부에 고정시킴으로써 절삭 휠을 눕히거나 세워서 사용하여도 절삭 휠의 떨림 현상을 방지하여 절삭 휠의 파손을 방지하는 효과가 있다.According to the present invention, it is possible to easily mount and separate the cutting wheel while fixing the supporting part to the fixing part while coupling the locking protrusion formed on the locking part of the supporting part to the coupling groove of the fixing part, Thereby preventing the cutting wheel from being shaken even if the cutting wheel is laid down or used uprightly, thereby preventing breakage of the cutting wheel.

도 1은 본 발명의 절삭 휠 탈부착장치를 도시한 분해사시도이다.
도 2는 본 발명의 절삭 휠 탈부착장치를 도시한 단면도이다.
도 3a 내지 도 3c는 본 발명의 절삭 휠 탈부착장치에 절삭 휠이 장착되는 상태를 도시한 측면도이다.
도 4는 본 발명의 절삭 휠 탈부착장치에 절삭 휠의 고정 전후 상태를 도시한 평면도이다.1 is an exploded perspective view showing a cutting-wheel attaching / detaching apparatus of the present invention.
2 is a cross-sectional view illustrating a cutting-wheel attaching / detaching apparatus of the present invention.
FIGS. 3A to 3C are side views showing a state in which a cutting wheel is mounted on the cutting-wheel attaching / detaching apparatus of the present invention.
4 is a plan view showing a state before and after the cutting wheel is fixed to the cutting-wheel attaching / detaching apparatus of the present invention.

본 발명의 상기와 같은 목적, 특징 및 다른 장점들은 첨부도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명함으로써 더욱 명백해질 것이다. 이하 첨부된 도면을 참조하여 본 발명의 실시예에 따른 절삭 휠 탈부착장치에 대해 상세히 설명하기로 한다.These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a cutting-wheel attaching / detaching apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 절삭 휠 탈부착장치를 도시한 분해사시도이고, 도 2는 본 발명의 절삭 휠 탈부착장치를 도시한 단면도이고, 도 3a 내지 도 3c는 본 발명의 절삭 휠 탈부착장치에 절삭 휠이 장착되는 상태를 도시한 측면도이며, 도 4는 본 발명의 절삭 휠 탈부착장치에 절삭 휠의 고정 전후 상태를 도시한 평면도이다.FIG. 1 is an exploded perspective view of a cutting-wheel attaching and detaching apparatus according to the present invention, FIG. 2 is a cross-sectional view of a cutting-wheel attaching and detaching apparatus of the present invention, FIGS. 3a to 3c show a cutting- FIG. 4 is a plan view showing a state before and after the cutting wheel is fixed to the cutting-wheel attaching / detaching apparatus of the present invention.

도 1 내지 도 4를 참조하면, 본 발명의 절삭 휠 탈부착장치(100)는 체결부(110), 탄성부(120), 지지부(130) 및 고정부(140)를 포함하며, 절삭 휠(10)을 지지하는 홀더(holder) 역할을 한다.1 to 4, a cutting-wheel attaching / detaching apparatus 100 according to the present invention includes a coupling part 110, an elastic part 120, a support part 130 and a fixing part 140, As shown in FIG.

체결부(110)는 도 1 및 도 2에 도시된 바와 같이 원기둥 형상으로 상면 중심부에 삽입축(114) 및 체결축(112)이 순차 형성되고, 저면 중심부에 핸드 그라인더(연마기) 등이 적용되는 공구의 회전축에 일단이 결합되도록 체결 나사홈(116)이 형성된다.1 and 2, an insertion shaft 114 and a coupling shaft 112 are sequentially formed at the central portion of the top surface of the coupling portion 110, and a hand grinder or the like is applied to the center of the bottom portion A fastening screw groove 116 is formed so that one end of the fastening screw is coupled to the rotation axis of the tool.

체결축(112)은 외주면에 나선이 형성되며, 지지부(130)의 중심부를 통과한 상부에 고정부(140)의 나선홀(144)이 체결된다.The fastening shaft 112 is formed with a spiral on the outer circumferential surface thereof and the spiral hole 144 of the fixing part 140 is fastened to the upper part of the fastening shaft 112 that passes through the center of the support part 130.

삽입축(114)은 지지부(130)의 중심부의 내경과 대응되면서 체결축(112)의 직경보다 확장된다.The insertion shaft 114 is extended beyond the diameter of the fastening shaft 112 while corresponding to the inner diameter of the central portion of the support portion 130.

탄성부(120)는 체결부(110)와 지지부(130)의 사이에서 삽입축(114)을 감싸도록 구비되어 지지부(130)를 고정부(140) 방향으로 가압하도록 탄성력을 제공한다.The elastic part 120 is provided to enclose the insertion shaft 114 between the coupling part 110 and the support part 130 to provide an elastic force to press the support part 130 toward the fixing part 140.

즉, 탄성부(120)는 지지부(130)를 고정부(140) 방향으로 가압하고 있는 상태이므로 절삭 휠(10)이 장착된 지지부(130)가 회전되지 않게 한다.That is, since the elastic part 120 presses the support part 130 toward the fixing part 140, the support part 130 on which the cutting wheel 10 is mounted is not rotated.

지지부(130)는 도 1 및 도 2에 도시된 바와 같이 원판 형상으로 중심부에 체결축(112) 및 삽입축(114)이 관통하도록 홀이 형성되고, 상면에 결속돌기(132)가 방사상으로 형성되고, 저면에 체결부(110)의 외주면 상단을 감싸도록 구비되는 가림부재(134)가 연장되며, 상면 중 결속돌기(132)와 중첩되지 않은 위치마다 걸림부재(136)가 방사상으로 구비된다.As shown in FIGS. 1 and 2, the supporting part 130 has a circular plate shape and a hole is formed at the central part so that the fastening axis 112 and the insertion axis 114 penetrate. The fastening protrusion 132 is formed radially And a locking member 134 extending to cover the upper end of the outer circumferential surface of the coupling part 110 is extended to the bottom surface and a locking member 136 is radially provided at each position not overlapping the coupling projections 132 on the upper surface.

결속돌기(132)는 절삭 휠(10)이 지지부(130)와 연동되도록 절삭 휠(10)의 제1 결속홀(12)과 대응되는 형상으로 형성되며, 중심에 고정부(140)의 중심부가 위치되도록 양측으로 분할 형성된다. The coupling protrusion 132 is formed in a shape corresponding to the first coupling hole 12 of the cutting wheel 10 so that the cutting wheel 10 is interlocked with the supporting portion 130. The central portion of the fixing portion 140 As shown in Fig.

이때, 결속돌기(132)는 평면 형상이 일자 형상으로 형성되는 것으로 예시하였으나, 이에 한정하지 않고, 일자의 양단부에 직교 방향으로 마감된 형상 또는 일자의 양단부에 원으로 마감된 형상 등으로 변경 실시될 수 있다. 결속돌기(132)의 형상에 따라 절삭 휠(10)의 제1 결속홀(12) 형상 역시 대응되도록 변경 실시가 가능하다.In this case, the coupling protrusions 132 are formed in a flat shape in a planar shape, but the present invention is not limited to this, but the coupling protrusions 132 may be formed in a shape finished in a direction orthogonal to both ends of a shape or a shape closed in a circle at both ends of a shape . It is possible to change the shape of the first binding hole 12 of the cutting wheel 10 to correspond to the shape of the coupling protrusion 132 as well.

결속돌기(132)는 상면이 절삭 휠(10)의 중심부 두께보다 같거나 높도록 형성되는 것이 바람직하다.It is preferable that the coupling projections 132 are formed such that the upper surface thereof is equal to or higher than the thickness of the central portion of the cutting wheel 10. [

그리고 결속돌기(132)는 상면과 측면이 연결되는 변 부분을 면취(面取) 또는 라운딩 가공하여 고정부(140)의 간섭부재(142)와 중첩시킬 때 고정부(140)의 간섭부재(142)의 저면이 결속돌기(132)의 상면으로 용이하게 이동될 수 있도록 한다.The coupling protrusions 132 are formed on the inner surface of the interference member 142 of the fixing portion 140 when the side portions connected to the top and side surfaces are chamfered or rounded to overlap the interference member 142 of the fixing portion 140 To be easily moved to the upper surface of the coupling protrusion 132. [

또한, 결속돌기(132)는 도면에는 도시하지 않았지만 정면에서 봤을 때 양측벽이 하부로 갈수록 간격이 점차 좁아지도록 경사지게 형성되면서 양측으로 분할 형성되며, 분할된 일측은 지지부(130) 상면에 고정되고, 분할된 타측은 일측과의 대향면에 스프링으로 다수 연결될 수 있다. 이렇게, 결속돌기(132)를 양측으로 분할한 상태에서 절삭 휠(10)의 제1 결속홀(12)이 통과하면 스프링에 의해 분할된 타측이 벌어져 절삭 휠(10)이 견고하게 고정될 수 있다.Although not shown in the drawing, the coupling protrusions 132 are formed on both sides of the coupling protrusions 132 so that the gap between the coupling protrusions 132 gradually decreases as the side walls are viewed from the front, and the divided coupling protrusions 132 are fixed to the upper surface of the support 130, The divided other side can be connected by a spring to a surface facing one side. When the first fastening hole 12 of the cutting wheel 10 passes through the fastening protrusion 132 on both sides of the fastening protrusion 132, the other side split by the spring is opened and the cutting wheel 10 can be firmly fixed .

가림부재(134)는 지지부(130)의 저면에 체결부(110)의 외주면 상단을 감싸도록 원통 형상으로 구비되면서 체결부(110)와의 틈을 막아 먼지 등이 유입되지 않도록 방지한다.The covering member 134 is formed in a cylindrical shape so as to surround the upper end of the outer circumferential surface of the coupling part 110 on the bottom surface of the support part 130 and blocks the gap with the coupling part 110 to prevent dust or the like from being introduced.

걸림부재(136)는 한 쌍의 결속돌기(132)와 중첩되지 않은 위치에 구비되며, 본 실시예에서는 결속돌기(132)와 직교 방향으로 배치된 2개가 방사상으로 구비되는 것으로 예시한다.The locking member 136 is provided at a position not overlapping with the pair of coupling protrusions 132, and two locking protrusions 132 arranged in a direction orthogonal to the coupling protrusions 132 are radially provided in this embodiment.

걸림부재(136)는 대응되는 위치에 형성된 절삭 휠(10)의 제2 결속홀(14)이 삽입되도록 단면 형상이 "I"자 형상의 핀(pin) 형상으로 형성되며, 상단에 걸림돌기(136a)가 형성된다.The engaging member 136 is formed in a pin shape having an I-shaped cross section so as to insert the second engaging hole 14 of the cutting wheel 10 formed at the corresponding position, 136a are formed.

걸림돌기(136a)는 걸림부재(136)의 상단에서 소정거리 이격된 외주면에 홈을 가공하여 형성되며, 고정부(140)의 결속홈(142a)에 삽입된다.The engaging protrusion 136a is formed by machining a groove in an outer circumferential surface spaced a predetermined distance from the upper end of the engaging member 136 and inserted into the engaging groove 142a of the fixing portion 140. [

고정부(140)는 일자 형상으로 형성되며, 양단에 간섭부재(142)가 연장 형성되고, 중심부에 체결부(110)의 체결축(112)에 나선 체결되도록 나선홀(144)이 종방향으로 형성되며, 간섭부재(142)의 양측벽 대각 위치에 결속홈(142a)이 각각 형성된다.The fixing portion 140 is formed in a straight shape and has an interference member 142 extending from both ends thereof and a helical hole 144 is formed in the central portion in the longitudinal direction so as to be helically fastened to the fastening shaft 112 of the fastening portion 110 And binding grooves 142a are formed at diagonal positions of the side walls of the interference member 142, respectively.

고정부(140)는 체결부(110)의 체결축(112) 상단에 나선 체결되어 체결부(110)와 연동되며, 지지부(1300의 결속돌기(132)와 중첩된 상태에서 교차 회전되면서 결속돌기(132)에 끼워지는 절삭 휠(10)의 표면을 가압한다.The fixing part 140 is coupled to the upper end of the fastening shaft 112 of the fastening part 110 and interlocked with the fastening part 110. The fastening part 140 is rotated in an overlapping state with the fastening protrusion 132 of the supporting part 1300, And presses the surface of the cutting wheel 10 fitted to the cutting tool 132.

즉, 고정부(140)의 간섭부재(142)는 지지부(130)의 결속돌기(132)와 중첩된 상태에서 절삭 휠(10)의 제1 결속홀(12)이 삽입되며, 지지부(130)가 회전되면 결속돌기(132)와 교차되면서 절삭 휠(10)을 고정시킨다.That is, the interference member 142 of the fixing portion 140 is inserted into the first binding hole 12 of the cutting wheel 10 while being overlapped with the coupling protrusion 132 of the supporting portion 130, The cutting wheel 10 is fixed while being intersected with the coupling protrusion 132. [

결속홈(142a)은 도 1 기준 걸림돌기(136a)가 삽입될 수 있도록 수평부와 수직부로 구성된 "ㅜ" 자 형상으로 형성되며, 간섭부재(142)의 양측벽 대각 위치에 형성된다.The coupling groove 142a is formed in a shape of a letter "T" composed of a horizontal portion and a vertical portion so that the reference latching protrusion 136a can be inserted therein, and is formed at diagonal positions of both side walls of the interference member 142.

이렇게, 결속홈(142a)은 간섭부재(142)의 양측벽 대각 위치에 형성되어 지지부(130)가 절삭 휠(10)의 구동 방향 반대인 반시계 방향으로만 회전될 때 걸림부재(136)의 걸림돌기(136a)가 동시에 삽입되게 한다.In this way, the binding groove 142a is formed at the diagonal positions of both side walls of the interference member 142 so that when the supporting portion 130 is rotated only in the counterclockwise direction opposite to the driving direction of the cutting wheel 10, So that the latching protrusion 136a is inserted at the same time.

이와 같이 본 발명의 절삭 휠 탈부착장치(100)에 절삭 휠(10)을 탈부착하는 과정은 도 3 및 도 4를 참조하면 다음과 같다.3 and 4, the process of attaching and detaching the cutting wheel 10 to and from the cutting-wheel attaching / detaching apparatus 100 of the present invention will be described below.

먼저, 절삭 휠(10)의 부착시, 공구의 회전축에 본 발명의 절삭 휠 탈부착장치(100)에 형성된 체결 나사홈(116)을 체결한 상태에서 지지부(130)의 결속돌기(132)와 중첩된 고정부(140)의 간섭부재(142)를 통해 절삭 휠(10)의 제1 결속홀(12)을 위치시키고, 이와 동시에 걸림부재(136)에 절삭 휠(10)의 제2 결속홀(14)을 위치시킨다[도 3(a), 도 4(a) 참조].First, when attaching the cutting wheel 10, the fastening protrusion 132 of the support portion 130 is overlapped with the fastening screw groove 116 formed in the cutting-wheel attaching / detaching device 100 of the present invention in the rotating shaft of the tool, The first binding hole 12 of the cutting wheel 10 is positioned through the interference member 142 of the fixing part 140 and the second binding hole 12 of the cutting wheel 10 14 (see Figs. 3 (a) and 4 (a)).

다음으로, 지지부(130)의 결속돌기(132)에 절삭 휠(10)의 제1 결속홀(12)이 위치된 상태에서 절삭 휠(10)을 잡고 시계 방향[도 3(b), 도 4(b) 참조]으로 회전시키면 고정부(140)의 간섭부재(142)가 지지부(130)의 결속돌기(132)와 교차되며, 이와 함께 대향된 걸림부재(136)의 걸림돌기(136a)가 고정부(140)의 이격된 결속홈(142a)에 동시 결속된다. 3 (b), Fig. 4 (b), and Fig. 4 (b), while holding the cutting wheel 10 in a state in which the first binding hole 12 of the cutting wheel 10 is positioned on the coupling protrusion 132 of the support part 130 the interference member 142 of the fixing portion 140 intersects with the coupling protrusion 132 of the supporting portion 130 and the locking projection 136a of the locking member 136 opposed thereto And are simultaneously bound to the spaced binding groove 142a of the fixing portion 140. [

이때, 고정부(140)의 간섭부재(142) 저면이 지지부(130)의 결속돌기(132) 상면에 밀착된 상태에서 결속돌기(132)의 높이보다 절삭 휠(10) 중간 부분의 두께가 얇으므로 높이 차만큼 지지부(130)가 탄성부(120)의 탄성력에 의해 절삭 휠(10) 방향으로 이동하게 된다.At this time, the thickness of the intermediate portion of the cutting wheel 10 is smaller than the height of the coupling protrusion 132 in a state where the bottom surface of the interference member 142 of the fixing portion 140 is in close contact with the upper surface of the coupling protrusion 132 of the supporting portion 130 The supporting portion 130 is moved toward the cutting wheel 10 by the elastic force of the elastic portion 120 by the height difference.

그 후, 절삭 휠(10)의 탈착이 요구되면 작업자가 절삭 휠(10)을 반시계 방향(도 3 기준)으로 회전시켜 지지부(130)의 결속돌기(132) 상면이 고정부(140)의 간섭부재(142) 저면으로 이동하게 한다.Then, when the cutting wheel 10 is desired to be attached or detached, an operator rotates the cutting wheel 10 counterclockwise (referring to FIG. 3) so that the upper surface of the coupling protrusion 132 of the supporting part 130 contacts the upper surface of the fixing part 140 To move to the bottom of the interference member 142.

이때, 대향된 걸림부재(136)의 걸림돌기(136a)가 고정부(140)의 이격된 결속홈(142a)에서 동시 분리된다. At this time, the latching protrusions 136a of the opposing latching members 136 are simultaneously disconnected in the spaced latching grooves 142a of the fixing portion 140. [

그리고 지지부(130)의 결속돌기(132)가 고정부(140)의 간섭부재(142)와 중첩되면 절삭 휠(10)을 분리시킨다.When the coupling protrusion 132 of the support part 130 is overlapped with the interference member 142 of the fixing part 140, the cutting wheel 10 is separated.

이상 첨부된 도면을 참조하여 본 발명의 실시 예들을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: 절삭 휠 12, 14: 제1, 2 결속홀
100: 절삭 휠 탈부착장치 110: 체결부
112: 체결축 114: 삽입축
116: 체결나사홈 120: 탄성부
130: 지지부 132: 결속돌기
134: 가림부재 136: 걸림부재
136a: 걸림돌기 140: 고정부
142: 간섭부재 142a: 결속홈
144: 나선홀10: cutting wheel 12, 14: first and second binding holes
100: cutting wheel attaching / detaching device 110: fastening part
112: fastening shaft 114: insertion shaft
116: fastening screw groove 120:
130: support part 132:
134: Closing member 136:
136a: a locking projection 140: a fixing portion
142: interference member 142a: binding groove
144: Spiral hole

Claims (5)

공구의 회전축에 일단이 결합되고, 타단 중심부에 체결축이 구비되는 체결부;
상기 체결축에 중심부가 관통되며, 절삭 휠의 제1, 2 결속홀이 각각 위치되도록 일단에 방사상으로 형성된 결속돌기와, 걸림돌기가 단부에 형성되면서 상기 결속돌기와 중첩되지 않는 타단에 방사상으로 배치된 걸림부재로 구성되는 지지부;
상기 체결축의 상단에 고정되며, 상기 결속돌기와 중첩된 상태에서 교차 회전되면서 상기 걸림돌기와 결합되도록 결속홈이 양측벽 대각 위치에 형성되어 상기 결속홈이 상기 걸림돌기에 결합시 절삭 휠의 표면을 가압하는 고정부; 및
상기 체결부와 상기 지지부의 사이에 구비되어 상기 지지부를 상기 고정부 방향으로 가압하도록 탄성력을 제공하는 탄성부를 포함하며,
상기 결속홈과 상기 걸림돌기는 요철(凹凸) 형태로 결합되는 것을 특징으로 하는 절삭 휠 탈부착장치.
A fastening part having one end coupled to the rotation axis of the tool and the fastening shaft provided at the other end;
A coupling protrusion formed radially at one end so that the central portion of the coupling shaft passes through the coupling shaft and the first and second coupling holes of the cutting wheel are positioned respectively; and a coupling protrusion formed at the other end, ;
And a fastening groove formed at a diagonal position on both sides of the fastening shaft so as to be engaged with the fastening protrusion while being cross-rotated while being superimposed on the fastening protrusion so as to press the surface of the cutting wheel when the fastening groove is engaged with the fastening protrusion government; And
And an elastic portion provided between the coupling portion and the support portion to provide an elastic force to press the support portion in the direction of the fixed portion,
Wherein the coupling groove and the engaging protrusion are coupled to each other in a concavo-convex shape.
제1항에 있어서,
상기 결속홈은 정면 형상이 수평부와 수직부로 구성된 형태로 형성되는 것으로 특징으로 하는 절삭 휠 탈부착장치.
The method according to claim 1,
Wherein the binding groove is formed in a shape in which a front shape is formed of a horizontal portion and a vertical portion.
제1항에 있어서,
상기 고정부 및 상기 결속돌기는 일자 형상, 일자의 양단부에 직교 방향으로 마감된 형상 및 일자의 양단부에 원으로 마감된 형상 중 어느 하나의 형상으로 형성되는 것을 특징으로 하는 절삭 휠 탈부착장치.
The method according to claim 1,
Wherein the fixing portion and the coupling protrusion are formed in a shape of a straight line, a shape finished in a direction orthogonal to both ends of the straight line, and a shape finished in a circle at both ends of the straight line.
제1항에 있어서,
상기 결속돌기는 양측으로 분할 형성되는 것을 특징으로 하는 절삭 휠 탈부착장치.
The method according to claim 1,
And the coupling protrusions are divided into two sides.
제1항에 있어서,
상기 지지부는 상기 걸림부재의 반대면에 상기 체결부의 외주면을 감싸도록 연장된 가림부재가 구비되는 것을 특징으로 하는 절삭 휠 탈부착장치.The method according to claim 1,
Wherein the supporting portion is provided on the opposite surface of the engaging member with a covering member extending to surround the outer circumferential surface of the engaging portion.
KR1020180003799A 2018-01-11 2018-01-11 Cutting wheel disassembling and assembling device KR20190085664A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111546159A (en) * 2020-06-08 2020-08-18 上海高仙自动化科技发展有限公司 Polishing head assembly and stone polishing robot
KR20210124633A (en) * 2020-04-07 2021-10-15 권정자 Grinder wheel holder for hand grinder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101737890B1 (en) 2016-05-23 2017-05-22 우삼균 Holder of grinding wheel and grinder including the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101737890B1 (en) 2016-05-23 2017-05-22 우삼균 Holder of grinding wheel and grinder including the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210124633A (en) * 2020-04-07 2021-10-15 권정자 Grinder wheel holder for hand grinder
CN111546159A (en) * 2020-06-08 2020-08-18 上海高仙自动化科技发展有限公司 Polishing head assembly and stone polishing robot

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