KR200473898Y1 - Wheel Assembly Of Grinder - Google Patents

Wheel Assembly Of Grinder Download PDF

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Publication number
KR200473898Y1
KR200473898Y1 KR2020140001583U KR20140001583U KR200473898Y1 KR 200473898 Y1 KR200473898 Y1 KR 200473898Y1 KR 2020140001583 U KR2020140001583 U KR 2020140001583U KR 20140001583 U KR20140001583 U KR 20140001583U KR 200473898 Y1 KR200473898 Y1 KR 200473898Y1
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KR
South Korea
Prior art keywords
disk
cup
base
coupling
engaging
Prior art date
Application number
KR2020140001583U
Other languages
Korean (ko)
Inventor
김학천
Original Assignee
김학천
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김학천 filed Critical 김학천
Priority to KR2020140001583U priority Critical patent/KR200473898Y1/en
Application granted granted Critical
Publication of KR200473898Y1 publication Critical patent/KR200473898Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D7/066—Grinding blocks; their mountings or supports

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

Abstract

A grinding wheel assembly comprising a base disk in the form of a disk and a plurality of engaging pieces secured to the periphery of the base disk for engaging with a disk cup including a grinding tip. In the grinding wheel assembly of the present invention, the engaging piece includes a base portion having a threaded through groove; A cylindrical protruding end which is formed on a surface of the base portion opposite to the surface on which the screw through groove is formed and is fitted in a coupling hole formed at the center of the disc cup; And a screw portion formed on the protruding end, wherein the base disk has a coupling hole for coupling with the coupling piece, wherein a screw is formed in the coupling hole of the base disk and the screw hole And the coupling piece is coupled to the base disk. The grinding wheel assembly of the present invention is convenient because it can easily perform joining, disassembling, and replacement of the grinding disk cup.

Description

Wheel Assembly Of Grinder < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding wheel assembly, and more particularly, to a grinding wheel assembly capable of easily engaging and disengaging a grinding disk cup.

The surface of a building interior and exterior material including a stone such as concrete or marble is subjected to a finishing process of grinding with a grinder. For this finishing process, for example, a grinding wheel assembly 10 as shown in Fig. 1 has been used conventionally.

The conventional grinding wheel assembly 10 includes a disk-shaped base disk 100. The base disk 100 has a body coupling hole 110 for coupling with a main body (not shown) including a driving motor at a central portion thereof. The main body is coupled to the base disk 100 through the main body coupling hole 110, and the entirety of the base disk 100 is rotated by the operation of the drive motor included in the main body. A plurality of polishing disk cup coupling holes 120 are formed in the periphery of the base disk 100. A plurality of polishing disc cups 200 are coupled onto the base disc 100 through the disc cup coupling holes 120. For example, six polishing disc cups 200 can be coupled onto the base disc 100.

A plurality of engaging pieces 300 are disposed on the base disk 100 so as to coincide with the disk cup engaging holes 120 in order to engage the disk cup 200 with the base disk 100.

The engagement piece 300 has a bolt through-hole 310 at the center thereof. The engagement piece 300 is composed of a base portion 320 and a protrusion 330 formed on the base portion 320. The base portion 320 has a cylindrical shape with a bolt through-hole 310 at the center, and has a cross-sectional area larger than that of the protruding portion 330. The bolt through holes 310 commonly penetrate the center of the base portion 320 and the protrusion portion 330 and the base portion 320 and the protrusion portion 330 are concentric circles.

After the engaging pieces 300 are disposed on the base disk 100, the projecting portions 330 of the engaging pieces 300 are inserted into the engaging holes 210 formed at the center of the grinding disk cup 200. The height of the protrusion 300 corresponds to the thickness of the coupling hole 210 of the polishing disc cup 200 and the outer diameter of the protrusion 300 corresponds to the diameter of the coupling hole 210 of the polishing disc cup 200 .

The bolt 400 penetrates through the bolt through hole 310 of the engaging piece 300 and the disk cup engaging hole 120 of the base disk 100 from the side where the polishing disk cup 200 is disposed, The polishing disc cup 200 is attached to the base disc 100 by fastening the nut 410 to the threaded portion of the bolt 400 exposed to the upper side of the disc 100, . The washer 420 is inserted between the head of the bolt 400 and the polishing disk cup 200 and the nut 410 is fitted to the threaded portion of the bolt 400 exposed above the base disk 100 It is preferable that the washers 430 and 440 are fitted before.

According to this configuration, the polishing disc cup 200 is coupled to the base disc 100 so as to be rotatable about the protrusion 330 of the engaging piece 300. Therefore, the base disk 100 is rotated entirely by the driving force of the driving motor, and by such rotation of the base disk 100, the polishing disk cup 200 is rotated along the rotation path of the base disk 100 And is rotated along a rotation path about the protrusion 300 of the engagement piece 300. Compared to Earth, the rotation of the electron can be compared to the revolution, and the rotation of the latter can be likened to rotation.

The polishing disc cup 200 is equipped with a plurality of polishing tips 220 which are formed by mixing and molding diamond powder with a bonding body and sintering. Polishing is accomplished by this polishing tip 220.

1, two polishing disc cups 200 are shown at different angles in the exploded perspective view of FIG. 1, which shows that one polishing disc cup 200 is expressed by different angles, And the polishing tip 220 are both displayed. 1, which shows a state in which the polishing disk cup 200 is coupled to the engaging piece 300, is clearly visible in the other engaging piece 300, Do. These matters are applied to FIGS. 2, 3 and 5 as they are.

2, a polishing disc cup 200 'having a different type of polishing disc cup 200', that is, a screw coupling hole 210 'formed at the center thereof, is mounted on a conventional grinder wheel assembly 10 Can be combined. To this end, after the engaging piece 300 is disposed on the base disk 200, the bolt 400 is fixed to the disk cup engaging hole 120 'of the base disk 100 at a side opposite to the side where the cup disk 200' And the bolt through hole 310 of the coupling piece 300 are successively passed through the bolt 400 and the screw part of the bolt 400 exposed to the outside of the bolt through hole 310 of the coupling piece 300, So that the screw coupling hole 210 'formed at the center is engaged. Thereby coupling the polishing disc cup 200 'to the base disc 100.

According to this configuration, the polishing disk cup 200 'is fixedly coupled to the base disk 100 by the bolts 400. Thus, the driving force of the driving motor causes the base disk 100 to rotate as a whole, and the rotation of the base disk 100 causes the polishing disk cup 200 'to rotate along the rotation path of the base disk 100 do. Unlike the above-described polishing disc cup 200, the polishing disc cup 200 'does not rotate.

However, the above-described prior art grinding wheel assembly 10 is very troublesome in the process of assembling the polishing disc cup 200 to the base disc 100. That is, since the base disk 100 is actually coupled to the main body of the grinder and the base disk 100 is covered with the cover, it is not easy to approach the side surface and the upper side of the base disk 100. In this situation, the process of the grinding wheel assembly 10 of the prior art is very troublesome because it requires performing a joining operation and a replacement operation both in the upper part and the lower part of the base disk 100.

Accordingly, the present invention has been made in order to solve the above problems of the prior art. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a grinding wheel assembly that can easily perform the joining and replacement of a grinding disk cup.

In order to achieve the above object, a grinding wheel assembly of the present invention includes a base disk having a disk shape and a plurality of engaging pieces fixed to the periphery of the base disk for engaging with a grinding disk cup including a grinding tip.

Wherein the engaging piece has a base portion having a screw through groove; A cylindrical protruding end which is formed on the opposite side of the surface of the base portion on which the screw through groove is formed and is fitted in a coupling hole formed at the center of the polishing disc cup; And a screw portion formed on the protruding end, wherein the base disk has a coupling hole for coupling with the coupling piece, wherein a screw is formed in the coupling hole of the base disk and the screw hole And the coupling piece is coupled to the base disk.

It is preferable that the coupling piece is formed integrally with the base portion, the projecting end, and the threaded portion.

The diameter of the cylindrical shape of the protruding end of the engaging piece matches the diameter of the engaging hole formed at the center of the abrading disk cup to which the engaging piece is coupled and the height thereof coincides with the thickness of the engaging hole of the disc cup.

Wherein the engaging piece is engaged with the engaging hole of the disk cup to which the protruding end is engaged and then the washer and the nut are fitted to the disc cup to engage with the disc cup, As shown in Fig.

And the cross-sectional area of the threaded portion in the engagement piece is smaller than the cross-sectional area of the projecting end.

The threaded portion of the coupling piece may be screwed into a screw coupling hole formed at the center of the disc cup to fix the disc cup to the coupling piece.

The grinding wheel assembly of the present invention is convenient because it can easily perform joining, disassembling, and replacement of the grinding disk cup.

FIG. 1 is a partially exploded perspective view showing a configuration of a grinder wheel assembly according to the prior art, which is coupled with a grinding disk cup having a coupling hole formed at the center thereof.
2 is a partially exploded perspective view showing a configuration of a grinder wheel assembly according to the prior art, which is coupled with a grinding disk cup having a screw hole at the center thereof;
FIG. 3 is a partially exploded perspective view showing the structure of a grinding wheel assembly according to the present invention in which the grinding disc cup is joined with a grinding disc cup having a coupling hole formed at the center thereof.
4 is a view showing a structure of a coupling piece used in a grinding wheel assembly according to the present invention.
5 is a partially exploded perspective view showing the structure of a grinding wheel assembly according to the present invention in which a grinding disk cup with a screw hole is formed at its center.

Hereinafter, the present invention will be described in detail with reference to the drawings.

In the present specification, the same components as those mentioned in the prior art use the same reference numerals, and the same components are denoted by different reference numerals.

3, the grinding wheel assembly 20 of the present invention includes a disk-shaped base disk 500. The base disk 500 has a body coupling hole 510 for coupling with a main body (not shown) including a drive motor at a central portion thereof. The main body is coupled to the base disk 500 via the main body coupling hole 510, and the entire base disk 500 is rotated by the operation of the drive motor included in the main body. A plurality of polishing disk cup coupling holes 520 are formed in the periphery of the base disk 500. A plurality of polishing disc cups 200 are coupled onto the base disc 100 through the disc cup coupling holes 520.

In order to couple the polishing disk cup 200 to the base disk 500, the present invention fixes the plurality of engaging pieces 600 to the periphery of the base disk 500. The engagement piece 600 includes a base portion 610, a protruding end 620, and a threaded portion 630, as shown in more detail in FIG. The base portion 610, the protruding end 620, and the threaded portion 630 are preferably integrally formed.

One or more screw through grooves 611 are formed in the base portion 610 of the engaging piece 600. The screw through grooves 611 are preferably formed in a plurality of, for example, three. Corresponding to this, the polishing disk cup coupling holes 520 formed on the base disk 500 may also be formed with a plurality of, for example, three with respect to the coupling with one coupling piece 600. The screw through-hole 611 may be formed to penetrate the entirety of the base portion 610 of the engaging piece 600, but it is more preferable that the screw-through groove 611 is formed in a groove shape that does not penetrate. The base portion 610 of the coupling piece 600 may be formed in various shapes such as a square pillar, a pentagonal pillar, and the like, but is preferably formed in a cylindrical shape.

The protruding end 620 is formed on the opposite surface of the surface on which the screw through-hole 611 of the base portion 610 is formed. The protruding end 620 is fitted in the coupling hole 210 formed at the center of the disc cup 200 and has a cylindrical shape. The cylindrical shape of the protruding end 620 corresponds to the diameter of the coupling hole 210 formed at the center of the disc cup 200 to which the diameter of the protruding end 620 is coupled, And the thickness of the film is preferably equal to the thickness of the film.

The threaded portion 630 is formed on the protruding end 620. The cross sectional area of the threaded portion 630 in the engagement piece 600 is preferably smaller than the cross sectional area of the protruding end 620 and the cross sectional area of the protruding end 620 is preferably smaller than the cross sectional area of the base portion 610.

The engaging piece 600 is fixedly coupled to the base disk 500. The screw 700 is inserted into and screwed into the disk cup engaging hole 520 of the base disk 500 and the screw through groove 611 formed in the base portion 610 of the engaging piece 600.

In this grinding wheel assembly 20 according to the present invention, as shown in FIG. 3, a polishing disc cup 200 having a coupling hole 210 formed at its center is engaged. The polishing disc cup 200 is equipped with a plurality of polishing tips 220 which are formed by mixing and molding diamond powder with a bonding body and sintering. Polishing is accomplished by this polishing tip 220.

The process of coupling the grinding disc cup 200 having the coupling hole 210 at the center thereof to the grinding wheel assembly 20 according to the present invention is as follows. First, the protruding end 620 of the coupling piece 600 is inserted into the coupling hole 210 of the polishing disc cup 200. The threaded portion 630 of the coupling piece 600 is located inside the grinding disc cup 200. After the washer 810 is inserted into the threaded portion 630 and the nut 800 is inserted, ) To the base disk (500).

According to this configuration, the polishing disc cup 200 is coupled to the base disc 500 so as to be rotatable about the protruding end 620 of the engaging piece 600. Accordingly, the base disk 500 rotates as a whole by the driving force of the driving motor, and by such rotation of the base disk 500, the polishing disk cup 200 rotates along the rotation path of the base disk 500 And is rotated along the rotation path about the protruding end 620 of the engagement piece 600. Compared to Earth, the rotation of the electron can be compared to the revolution, and the rotation of the latter can be likened to rotation.

5, a polishing disk cup 200 'having a different type of polishing disk cup 200', that is, a polishing disk cup 200 'having a screw coupling hole 210' formed at the center thereof is different from the polishing disk cup 200 described above. May be coupled to the grinding wheel assembly 20 of the present invention. To this end, the grinder wheel assembly 20 according to the present invention merely needs to insert the threaded portion 620 of the coupling piece 600 into the threaded coupling hole 210 'of the cup 200'.

In this configuration, the polishing disk cup 200 'is fixedly coupled to the base disk 500 by the threaded portion 620. The base disk 500 is rotated entirely by the driving force of the driving motor and the polishing disk cup 200 'is rotated along the rotation path of the base disk 500 by such rotation of the base disk 500 do. Unlike the above-described polishing disc cup 200, the polishing disc cup 200 'does not rotate.

As described above, according to the present invention, the grinding wheel assembly 20 includes a grinding disc cup 200 having a coupling hole 210 formed at the center thereof and a grinding disc cup 200 'having a screw coupling hole 210' ), It is very convenient to perform the joining, disassembling and replacement operations.

The present invention relates to a disk grinding machine, and more particularly, to a disk grinding machine, a grinding machine, a grinding machine, a grinding machine, and a grinding machine. Groove 620: protrusion 630: thread 700: screw 800: nut 810: washer

Claims (6)

1. A grinding wheel assembly comprising a base disk in the form of a disk and a plurality of engaging pieces fixed to a periphery of the base disk for engaging with a disk cup including a grinding tip,
Wherein the engaging piece includes: a base portion having a threaded through-hole; A cylindrical protruding end which is formed on a surface of the base portion opposite to the surface on which the screw through groove is formed and is fitted in a coupling hole formed at the center of the disc cup; And a screw portion formed on the protruding end, wherein the base disk has a coupling hole for coupling with the coupling piece, wherein a screw is formed in the coupling hole of the base disk and the screw hole And wherein the coupling member is coupled to the base disk, and the coupling member is coupled to the base disk. The method according to claim 1,
Wherein the engaging piece is formed integrally with the base portion, the projecting end, and the threaded portion. 3. The method according to claim 1 or 2,
Wherein the cylindrical shape of the protruding end of the engaging piece matches the diameter of the engaging hole formed at the center of the disc cup to which the diameter of the engaging piece is coupled and the height thereof coincides with the thickness of the engaging hole of the disc cup. Wheel assembly. The method of claim 3,
Wherein the engaging piece is engaged with the engaging hole of the disk cup to which the protruding end is engaged and then the washer and the nut are fitted to the disc cup to engage with the disc cup, Wherein the grinding wheel is rotated by a predetermined angle. 5. The method of claim 4,
Wherein a cross-sectional area of the threaded portion in the engagement piece is smaller than a cross-sectional area of the projecting end. The method according to claim 1,
Wherein the threaded portion of the coupling piece is screwed with a screw coupling hole formed at the center of the disc cup to fix the disc cup to the coupling piece.
KR2020140001583U 2014-02-28 2014-02-28 Wheel Assembly Of Grinder KR200473898Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020140001583U KR200473898Y1 (en) 2014-02-28 2014-02-28 Wheel Assembly Of Grinder

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KR2020140001583U KR200473898Y1 (en) 2014-02-28 2014-02-28 Wheel Assembly Of Grinder

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KR200473898Y1 true KR200473898Y1 (en) 2014-08-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200486156Y1 (en) * 2016-12-14 2018-04-09 신대철 Grinding Wheel
EP4327979A1 (en) * 2022-08-24 2024-02-28 Javier Lopez Floor polishing armature

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372378U (en) * 1989-11-15 1991-07-22
KR200331457Y1 (en) 2003-07-30 2003-11-01 태양연마 주식회사 Grinding flap wheel
KR100492854B1 (en) 2004-09-15 2005-06-02 세원테크 주식회사 Grinding wheel
KR100987579B1 (en) 2009-12-14 2010-10-12 (주)성심 Grinding wheel assembly easily attachable and detachable of grinding-tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372378U (en) * 1989-11-15 1991-07-22
KR200331457Y1 (en) 2003-07-30 2003-11-01 태양연마 주식회사 Grinding flap wheel
KR100492854B1 (en) 2004-09-15 2005-06-02 세원테크 주식회사 Grinding wheel
KR100987579B1 (en) 2009-12-14 2010-10-12 (주)성심 Grinding wheel assembly easily attachable and detachable of grinding-tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200486156Y1 (en) * 2016-12-14 2018-04-09 신대철 Grinding Wheel
EP4327979A1 (en) * 2022-08-24 2024-02-28 Javier Lopez Floor polishing armature

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