KR20210138267A - A grinding wheel having a grinding segment holder - Google Patents

A grinding wheel having a grinding segment holder Download PDF

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Publication number
KR20210138267A
KR20210138267A KR1020200056391A KR20200056391A KR20210138267A KR 20210138267 A KR20210138267 A KR 20210138267A KR 1020200056391 A KR1020200056391 A KR 1020200056391A KR 20200056391 A KR20200056391 A KR 20200056391A KR 20210138267 A KR20210138267 A KR 20210138267A
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South Korea
Prior art keywords
abrasive
grinding
holder
wheel
segment
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KR1020200056391A
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Korean (ko)
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김근식
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주식회사 현진산업
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Priority to KR1020200056391A priority Critical patent/KR20210138267A/en
Publication of KR20210138267A publication Critical patent/KR20210138267A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/16—Bushings; Mountings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The present invention relates to a grinding wheel in which a plurality of grinding segments (3) having grinding tips attached thereto are respectively mounted on holders (2) disposed at ends of a disk-shaped grinding wheel (1) near the outer peripheral surface thereof to be spaced apart from each other. The holders (2) fixed to the grinding wheel are provided to mount the grinding segments (3) on the grinding wheel (1). The holders (2) have protrusions (23) formed at both ends thereof to prevent a direct impact from being applied to the grinding segments (3) during grinding and retain the grinding segments (3) on the holders. Between both the protrusions (23), the grinding segments (3) having grinding tips (33, 34) attached thereto are mounted. The impact of a workpiece on the protrusions is not directly applied to the grinding segments, and thus the grinding segments with the grinding tips are not separated from the holders. Therefore, the grinding wheel can prevent an operator from being injured by separation of the grinding segments from the grinding wheel due to the impact caused by the irregular surface of the workpiece in a conventional grinding operation, and can prevent the occurrence of accidents such as damage to surrounding equipment, thereby increasing safety.

Description

연마세그먼트 홀더를 구비한 연마휠{A GRINDING WHEEL HAVING A GRINDING SEGMENT HOLDER}Abrasive wheel with abrasive segment holder {A GRINDING WHEEL HAVING A GRINDING SEGMENT HOLDER}

본 발명은 연마세그먼트 홀더를 구비한 연마휠에 관한 것으로, 특히 연마휠에 의한 그라인딩 작업중에 불규칙한 표면에서 연마팁들이 고정된 연마세그먼트가 홀더에서 이탈하여 주변기물의 파손 또는 부상의 문제가 발생되지 않게 연마세그먼트가 홀더에서 안정되게 유지될 수 있게 개선된 구조의 연마세그먼트 홀더를 구비한 연마휠에 관한 것이다. The present invention relates to an abrasive wheel having an abrasive segment holder. In particular, during grinding by the abrasive wheel, the abrasive segment having the abrasive tips fixed on the irregular surface is separated from the holder so that the problem of damage or injury to peripherals does not occur. The present invention relates to an abrasive wheel having an abrasive segment holder having an improved structure so that the segment can be stably held in the holder.

그라인더는 일반적으로 석재나 건물 바닥의 표면을 다듬기 위한 그라인딩작업에 널리 사용되고 있으며, 이러한 그라인더는 회전판 형태의 연마휠의 저면에 복수개의 연마팁들이 장착되어서 회전시에 대상물의 표면을 연마하도록 되어 있다.Grinders are generally widely used for grinding work for refining the surface of stone or building floors, and these grinders are equipped with a plurality of abrasive tips on the bottom surface of a rotating plate-shaped abrasive wheel to grind the surface of an object during rotation.

이러한 연마휠의 예로서, 한국 등록특허 제10-1004548호(등록일자 2010년12월21일)에 개시된 연마 휠은 디스크 원판의 바닥면에 장착홈이 형성되어, 상기 장착홈이 센터구멍과 원둘레 사이에 배치되고, 상기 장착홈에 자석이 끼워져 고정되고, 자석의 주위에 끼움돌기가 형성되고, 연마팁이 부착된 연마 세그먼트에 결합구멍이 디스크 원판의 끼움돌기에 대응되게 형성되어, 상기 결합구멍이 끼움돌기에 결합되면, 연마 세그먼트가 자석에 의해 디스크 원판에 부착되어 구성된다.As an example of such an abrasive wheel, in the abrasive wheel disclosed in Korean Patent Registration No. 10-1004548 (registration date: December 21, 2010), a mounting groove is formed on the bottom surface of the disk disc, and the mounting groove has a center hole and a circumference. is disposed between, a magnet is fitted and fixed in the mounting groove, a fitting protrusion is formed around the magnet, and a coupling hole is formed in the abrasive segment to which the abrasive tip is attached to correspond to the fitting protrusion of the disk disc, the coupling hole When engaged with this fitting, the abrasive segment is attached to the disk disk by a magnet and constitutes.

그러나, 이러한 종래 기술의 연마휠에서 연마팁들이 부착된 연마세그먼트는 디스크원판에 형성된 끼움돌기들이 연마세그먼트에 형성된 결합구멍들에 단순히 끼워져 조립되고, 연마 세그먼트는 단순한 판상의 형상을 가짐으로써, 고속회전하는 연마휠의 연마 세그먼트가 가공 대상물의 돌기에 충돌하는 경우의 충격에 대하여 연마세그먼트의 홀에 단순히 연마휠의 돌기가 삽입된 구조로는 연마세그먼트의 측방향의 지지력이 약하여 연마 세그먼트가 연마휠에서 회전방향 외측 주변으로 튕겨져 주변 기물들을 손상시키거나 또는 작업자들의 부상을 초래하는 안전성의 문제가 있었다. However, in this prior art abrasive wheel, the abrasive segment to which the abrasive tips are attached is assembled by simply fitting the fitting protrusions formed on the disk disk into the coupling holes formed in the abrasive segment, and the abrasive segment has a simple plate-like shape, so that it rotates at high speed. With the structure in which the protrusion of the abrasive wheel is simply inserted into the hole of the abrasive segment against the impact when the abrasive segment of the abrasive wheel collides with the protrusion of the object, the supporting force in the lateral direction of the abrasive segment is weak, so that the abrasive segment is separated from the abrasive wheel. There was a safety problem in that it was bounced around the outer side of the rotational direction to damage the surrounding objects or to injure the workers.

한국 등록특허 제10-1004548호(등록일자 2010년12월21일)Korean Patent Registration No. 10-1004548 (Registration Date December 21, 2010)

본 발명의 목적은, 상기한 종래 연마휠에서의 연마세그먼트의 이탈에 의한 사고 발생으로 인한 안전성의 문제를 해결하기 위하여, 연마휠의 그라인딩 작업시 연마세그먼트가 충격에 의해 연마휠로 부터 이탈되지 않고 홀더에서 안전하게 유지되도록 하여 안전성을 향상시킨 개선된 구조의 연마세그먼트 홀더를 구비한 연마휠을 제공하는 것이다.An object of the present invention is to solve the problem of safety due to the occurrence of an accident due to the separation of the abrasive segment in the conventional abrasive wheel. An object of the present invention is to provide an abrasive wheel having an abrasive segment holder having an improved structure in which safety is improved by allowing it to be safely maintained in the holder.

상기한 목적을 달성하기 위하여, 본 발명에 의한 연마세그먼트 홀더를 구비한 연마휠은, 원판상의 연마휠 외주면 부근의 단부들에 일정 간격 이격되어 배치된 홀더들 각각에 연마팁들이 부착된 복수개의 연마세그먼트가 장착된 연마휠에 있어서,In order to achieve the above object, an abrasive wheel with abrasive segment holder according to the present invention includes a plurality of abrasive tips attached to each of the holders spaced apart from each other at the ends near the outer circumferential surface of the abrasive wheel on a disk shape. In the abrasive wheel equipped with a segment,

상기 연마세그먼트를 연마휠(1)에 장작하기 위하여 연마휠에 고정되는 홀더를 구비하며,and a holder fixed to the abrasive wheel to mount the abrasive segment to the abrasive wheel (1);

상기 홀더는 연마 가공작업시 연마 세그먼트에의 직접적인 충격이 가해지는 것을 방지하여 연마 세그먼트를 홀더에 유지시키기 위한 돌출부가 양측 단부에 형성되어 있으며, 양측의 돌출부들 사이에 연마팁들이 부착된 연마 세그먼트가 장착된다.The holder has protrusions formed at both ends for holding the abrasive segment in the holder to prevent direct impact on the abrasive segment during abrasive machining, and the abrasive segment to which abrasive tips are attached between the protrusions on both sides. is mounted

상기 연마 세그먼트는 연마팁들이 부착된 기판을 포함하며, 상기 기판은 홀더에 형성된 복수개의 홀들에 배치된 영구자석의 자력에 의해 홀더의 양측 단부에 형성된 돌출부들 사이에서 유지된다.The polishing segment includes a substrate to which polishing tips are attached, and the substrate is held between protrusions formed at both ends of the holder by the magnetic force of permanent magnets disposed in a plurality of holes formed in the holder.

상기 기판에 형성된 홀들에 홀더를 연마휠에 체결하기 위한 볼트의 헤드부가 수용되어 홀더로 부터 연마 세그먼트에 전달된 측방향의 충격력을 지지하도록 되는 것이 바람직하다.Preferably, a head portion of a bolt for fastening the holder to the abrasive wheel is accommodated in the holes formed in the substrate to support the lateral impact force transmitted from the holder to the abrasive segment.

본 발명에 따라 연마세그먼트가 배치된 홀더의 양측 단부에 보호수단으로서 돌출턱이 일체로 형성되어 가공대상물의 돌기에 대한 충격이 연마세그먼트에 직접적으로 가해지지 않게 되어 연마팁이 부착된 연마 세그먼트가 홀더로 부터 이탈되지 않음으로써 종래 연마 작업중 가공대상물의 불규칙한 표면에 의해 발생되는 웅격으로 연마세그먼트가 연마휠에서 이탈되어 작업자 부상 방지, 주변 기물 파손 등의 안전 사고의 발생을 방지함으로써 안전성이 향상되는 효과가 있다.According to the present invention, protruding jaws are integrally formed as a protection means at both ends of the holder in which the abrasive segments are disposed, so that the impact on the protrusions of the object is not directly applied to the abrasive segment, so that the abrasive segment with the abrasive tip is attached to the holder The effect of improving safety by preventing the occurrence of safety accidents such as injury to workers and damage to surrounding objects due to the abrasive segment being separated from the polishing wheel due to the force generated by the irregular surface of the workpiece during conventional grinding work have.

도 1은 본 발명에 의한 연마세그먼트 홀더를 구비한 연마휠의 개략적인 분해사시도.
도 2는 도 1의 조립상태의 사시도.
도 3은 도 1에서 연마휠에 홀더를 장착한 상태의 저면도.
도 4는 도 2의 부분단면도.
도 5는 본 발명에 의한 연마세그먼트 홀더를 구비한 연마휠의 작업시 사용상태를 보여주는 부분 평면도. 1 is a schematic exploded perspective view of an abrasive wheel having an abrasive segment holder according to the present invention;
Figure 2 is a perspective view of the assembled state of Figure 1;
Figure 3 is a bottom view of a state in which the holder is mounted on the polishing wheel in Figure 1;
Fig. 4 is a partial cross-sectional view of Fig. 2;
5 is a partial plan view showing a working state of an abrasive wheel having an abrasive segment holder according to the present invention;

이하에서는 본 발명의 실시예를 도시한 첨부 도면을 참고하여 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

도 1 내지 4에 있어서, 그라인더의 연마휠(1)은 원판상으로 그 외주면 부근의 단부들에 일정 간격 이격되어 배치된 홀더(2)들 각각에 연마세그먼트(3)가 장착되어 있다. 연마휠(1)의 중앙에 모터의 출력축에 장착하기 위한 홀(11)이 형성되어 있다.1 to 4, the abrasive wheel 1 of the grinder is disc-shaped, and the abrasive segments 3 are mounted on each of the holders 2 spaced apart from each other by a predetermined interval at the ends near the outer circumferential surface. A hole 11 for mounting on the output shaft of the motor is formed in the center of the polishing wheel 1 .

상기 연마휠(1)의 외주면 부근의 복수개소에 홀더(2)들이 볼트(21)들로 고정된다. 상기 홀더(2)는 부채꼴 형상으로 연마휠에의 볼트 체결을 위한 체결공(22)들이 형성되고, 연마휠의 저면에 복수개소, 도시된 실시예에서는 3개의 홀더들이 장착되어 있다. Holders (2) are fixed to a plurality of places near the outer peripheral surface of the polishing wheel (1) with bolts (21). The holder 2 has a sector-shaped fastening hole 22 for fastening bolts to the abrasive wheel, and a plurality of holders are mounted on the bottom surface of the abrasive wheel, in the illustrated embodiment, three holders.

상기 홀더(2)는 양측 단부에 또한 후술하는 바와 같이 연마 세그먼트(3)를 홀더에 유지시키기 위한 돌출부(23)가 형성되어 있으며, 양측의 돌출부(23)들 사이에 연마팁들이 고정된 연마세그먼트(3)가 장착된다. 또한, 상기 연마 세그먼트(3)를 홀더(2)에 유지시키기 위한 유지수단으로서 영구자석(24)들이 홀더에 형성된 복수개, 도시된 실시예에서는 3개의 홀(25)들에 배치된다. 상기 영구자석(24)들의 자력에 의해 연마 세그먼트(3)가 홀더에서 유지된다.The holder 2 is formed with protrusions 23 for holding the abrasive segment 3 in the holder at both ends, as will be described later, between the protrusions 23 on both sides of which abrasive tips are fixed. (3) is installed. Further, as holding means for holding the abrasive segment 3 in the holder 2 , permanent magnets 24 are arranged in a plurality of, in the illustrated embodiment, three holes 25 formed in the holder. The abrasive segment 3 is held in the holder by the magnetic force of the permanent magnets 24 .

이와 함께 상기 연마 세그먼트(3)는 상기 홀더(2)를 연마휠(1)에 체결하기 위한 볼트(21)의 헤드부(211)가 수용되는 홀(32)들이 형성된 기판(31)과 그 기판에 적어도 하나, 도시된 실시예에서는 3개의 연마팁(33,34)들이 기판(31)의 표면에서 돌출되어 제공되어 있다. 상기 연마팁들은 초경합금으로 기판(31)에 용접되어 일체화되어 있다. 상기 연마팁들은 도시된 실시예에서 둥근형태의 연마팁(33)과 상대적으로 작은 복수개의 연마팁(34)들을 포함할 수 있다. At the same time, the abrasive segment 3 includes a substrate 31 having holes 32 in which the head portion 211 of the bolt 21 for fastening the holder 2 to the polishing wheel 1 is formed, and the substrate. At least one, in the illustrated embodiment, three polishing tips (33, 34) are provided protruding from the surface of the substrate (31). The polishing tips are integrally welded to the substrate 31 with cemented carbide. The abrasive tips may include a plurality of relatively small abrasive tips 33 and a plurality of relatively small abrasive tips 33 in the illustrated embodiment.

상기 연마세그먼트(3)는 홀더(2) 양측의 돌출부(23)들 사이에 배치되어 볼트(21)로 체결되어 고정된다. 그런 다음, 상기 홀더(2)에 형성된 홀(25)에 영구자석(24)들을 삽입하면 그 자력에 의해 영구자석들이 홀(25)에서 유지됨과 함께 홀더(2) 상면에 배치되는 연마 세그먼트(3)를 홀더(2)에 대해 고정하게 된다.The abrasive segment (3) is disposed between the protrusions (23) on both sides of the holder (2) and fastened with bolts (21). Then, when the permanent magnets 24 are inserted into the hole 25 formed in the holder 2, the permanent magnets are held in the hole 25 by the magnetic force and the abrasive segment 3 disposed on the upper surface of the holder 2 ) is fixed with respect to the holder (2).

본 발명의 그라인더 연마세그먼트 홀더를 채용한 연마휠로 연마작업을 할 때, 도 5에 도시된 바와 같이, 연마휠이 점선으로 표시된 위치로 회전하면서 연마세그먼트(2)가 장착된 홀더(2)가 가공대상물의 돌출된 부분(100)과 접촉할 때 발생되는 충격이, 홀더(2)의 단부에 형성된 돌출부(23)에 의해 지지된다. When grinding with the grinding wheel employing the grinder abrasive segment holder of the present invention, as shown in FIG. 5, the holder 2 on which the grinding segment 2 is mounted while the grinding wheel rotates to the position indicated by the dotted line The impact generated when in contact with the protruding portion 100 of the object to be processed is supported by the protruding portion 23 formed at the end of the holder 2 .

이로써 홀더에 장착된 연마 세그먼트(3)에는 직접적으로 충격이 가해지지 않게 되고 홀더에 가해지는 충격이 연마세그먼트에 전달될 때 홀더를 연마휠에 고정하기 위한 볼트(21)의 헤드부(211)가 연마 세그먼트에 형성된 홀(32)들에 배치되어 홀더로 부터 연마 세그먼트에 전달된 측방향의 충격력을 지지하게 되므로, 종래 연마휠의 경우에 충격에 의해 주변으로 튕겨나가 안전사고 발생의 문제가 방지되며, 상기 가공대상물의 돌출된 부분(100) 위로 홀더(2)와 함께 연마 세그먼트(3)가 이동되면서 연마팁(33,34)들에 의해 연마되므로, 본 발명에 의한 연마세그먼트 홀더를 구비한 연마휠은 가공대상물의 불규칙한 표면에도 안전사고 발생의 염려 없이 연마작업을 진행할 수 있게 된다. As a result, no direct impact is applied to the abrasive segment 3 mounted on the holder, and the head portion 211 of the bolt 21 for fixing the holder to the abrasive wheel when the impact applied to the holder is transmitted to the abrasive segment. Since it is disposed in the holes 32 formed in the abrasive segment to support the lateral impact force transmitted from the holder to the abrasive segment, in the case of a conventional abrasive wheel, it is bounced around due to the impact, thereby preventing a safety accident. , Since the abrasive segment 3 is moved along with the holder 2 over the protruding part 100 of the object to be polished by the abrasive tips 33 and 34, grinding with the abrasive segment holder according to the present invention The wheel can perform grinding work even on irregular surfaces of the object to be processed without fear of safety accidents.

본 발명은 석재나 콘크리트 건물 바닥을 연마하기 위한 연마휠의 안전성을 향상시키도록 이용될 수 있다.The present invention can be used to improve the safety of abrasive wheels for grinding stone or concrete building floors.

1 : 연마휠 2 : 홀더
3 : 연마세그먼트 21 : 볼트
23 : 돌출부 24 : 영구자석
25 : 홀 33,34 : 연마팁1: abrasive wheel 2: holder
3: abrasive segment 21: bolt
23: protrusion 24: permanent magnet
25: hole 33,34: polishing tip

Claims (3)

원판상의 연마휠(1) 외주면 부근의 단부들에 일정 간격 이격되어 배치된 홀더(2)들 각각에 연마팁들이 부착된 복수개의 연마세그먼트(3)가 장착된 연마휠에 있어서,
상기 연마세그먼트(3)를 연마휠(1)에 장작하기 위하여 연마휠에 고정되는 홀더(2)를 구비하며,
상기 홀더(2)는 연마 가공작업시 연마 세그먼트(3)에의 직접적인 충격이 가해지는 것을 방지하여 연마 세그먼트(3)를 홀더에 유지시키기 위한 돌출부(23)가 양측 단부에 형성되어 있으며, 양측의 돌출부(23)들 사이에 연마팁(33,34)들이 부착된 연마 세그먼트(3)가 장착된 것을 특징으로 하는 연마세그먼트 홀더를 구비한 연마휠
In the abrasive wheel equipped with a plurality of abrasive segments (3) having abrasive tips attached to each of the holders (2) spaced apart from each other at the ends near the outer circumferential surface of the abrasive wheel (1) on a disk,
and a holder (2) fixed to the abrasive wheel (1) for mounting the abrasive segment (3) on the abrasive wheel (1);
The holder 2 has protrusions 23 formed at both ends to prevent a direct impact to the abrasive segment 3 from being applied to the holder during abrasive processing and to hold the abrasive segment 3 in the holder, and the protrusions on both sides. Abrasive wheel with abrasive segment holder, characterized in that between (23) is mounted abrasive segment (3) to which abrasive tips (33,34) are attached.
 제 1항에 있어서,
상기 연마 세그먼트(3)는 연마팁(33,34)들이 부착된 기판(31)을 포함하며, 상기 기판(31)은 홀더에 형성된 복수개의 홀(25)들에 배치된 영구자석(24)들의 자력에 의해 홀더(2)의 양측 단부에 형성된 돌출부(23)들 사이에서 유지되는 것을 특징으로 하는 연마세그먼트 홀더를 구비한 연마휠
The method of claim 1,
The abrasive segment 3 includes a substrate 31 to which abrasive tips 33 and 34 are attached, and the substrate 31 is formed of permanent magnets 24 arranged in a plurality of holes 25 formed in the holder. Abrasive wheel with abrasive segment holder, characterized in that it is held between the protrusions 23 formed on both ends of the holder 2 by magnetic force.
 제 2항에 있어서,
상기 기판(31)에 형성된 홀(32)들에 홀더(2)를 연마휠(1)에 체결하기 위한 볼트(21)의 헤드부(211)가 수용되어 홀더로 부터 연마 세그먼트에 전달된 측방향의 충격력을 지지하도록 된 것을 특징으로 하는 연마세그먼트 홀더를 구비한 연마휠.

3. The method of claim 2,
The head portion 211 of the bolt 21 for fastening the holder 2 to the abrasive wheel 1 is accommodated in the holes 32 formed in the substrate 31 in the lateral direction transferred from the holder to the abrasive segment. Abrasive wheel with abrasive segment holder, characterized in that to support the impact force of.
KR1020200056391A 2020-05-12 2020-05-12 A grinding wheel having a grinding segment holder KR20210138267A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115194664A (en) * 2022-07-05 2022-10-18 湖南锐健科技有限公司 Silicon carbide linear slide rail precision grinding wheel based on non-Newtonian fluid rheological property

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101004548B1 (en) 2008-10-09 2011-01-03 김근식 Grinding wheel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101004548B1 (en) 2008-10-09 2011-01-03 김근식 Grinding wheel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115194664A (en) * 2022-07-05 2022-10-18 湖南锐健科技有限公司 Silicon carbide linear slide rail precision grinding wheel based on non-Newtonian fluid rheological property
CN115194664B (en) * 2022-07-05 2023-06-20 湖南锐健科技有限公司 Precise grinding wheel for silicon carbide linear slide rail based on rheological property of non-Newtonian fluid

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