WO2022019650A1 - Meuleuse ayant un coupleur à touche unique et un dispositif d'arrêt - Google Patents

Meuleuse ayant un coupleur à touche unique et un dispositif d'arrêt Download PDF

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Publication number
WO2022019650A1
WO2022019650A1 PCT/KR2021/009417 KR2021009417W WO2022019650A1 WO 2022019650 A1 WO2022019650 A1 WO 2022019650A1 KR 2021009417 W KR2021009417 W KR 2021009417W WO 2022019650 A1 WO2022019650 A1 WO 2022019650A1
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WO
WIPO (PCT)
Prior art keywords
grinder
seating
fastening
seated
wheel
Prior art date
Application number
PCT/KR2021/009417
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English (en)
Korean (ko)
Inventor
김재현
박용원
Original Assignee
(주)비티케이
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 (주)비티케이 filed Critical (주)비티케이
Publication of WO2022019650A1 publication Critical patent/WO2022019650A1/fr

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Classifications

    • 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
    • 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
    • B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
    • 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

Definitions

  • the present invention relates to a grinder equipped with a one-touch coupler and a stopper, and more particularly, it is possible to quickly and easily fasten the grinder and the grinder wheel with little force without tools, and to seat the grinder wheel safely and use it, , by using the rotational force of the grinder wheel on the grinder, anyone can easily fasten the grinder wheel without tools on the fastening nut, and it can be used safely because the rotational force of the grinder and the rotational force of the grinder wheel rotate in opposite directions to prevent separation.
  • the grinder wheel is resiliently seated on the rotating shaft and perfectly close to each other, so that the grinder wheel can be safely fastened to the grinder. It relates to a grinder equipped with a one-touch coupler and a stopper capable of grinding while blocking.
  • a grinder is generally used to smooth the surface of an unprocessed part or rough surface after primary processing of shipbuilding and various industrial parts is completed, or when secondary processing is required before painting , and is also used for finishing after welding.
  • a grinding machine that rotates a grinding wheel at high speed to precisely refine the object is used, and parts that do not require small or high precision
  • the work of finishing the surface of the object is mainly performed using a light and easy-to-use hand disc grinder.
  • Such a hand disc grinder is operated by electricity or air while operating the rotating shaft at high speed, and at the same time, various grinder wheels (cutting stone, offset, grinding stone, disc paper, disc wheel paper, cup brush, round brush) are installed on this rotating shaft. It is mounted to grind the surface of the object to be polished. Since the grinder wheel is a consumable part, it is replaced with a new one according to the worn state.
  • the disclosed "abrasive disk fastening device of a grinder” is a rotating shaft of a hand disk grinder (10).
  • the rotating means 50 is inserted so as to be supported on the fulcrum 11a formed in (11), and the rotating shaft 11 protrudes from the rotating means 50, and the rotating means 50 is the support body 60 is rotated.
  • a thrust bearing 80 is installed between the support body 60 and the rotating body 70 while being fitted to the entire 70 and coupled so as not to be separated, and the support body 60 constituting the rotating means 50 is a rotating shaft.
  • the abrasive disk 20 is screwed to the rotating shaft 11 while being supported on the fulcrum 11a of (11) while being in close contact with the rotating body 70 at a position symmetrical to the supporting body 60, the rotating shaft ( The abrasive disk 20 fitted to 11) is characterized in that the screw part 31 of the coupling ring 30 formed in the center is screwed to the rotation shaft 11 while pressing the rotation means 50 and coupled.
  • the prior art allows direct fastening to the fastening device fixed to the rotating shaft, but in this case, due to the complexity of the fastening device and the difficulty of the fastening process, the operator cannot easily and quickly replace the fastening device. Since a separate fastening device is installed on the rotary shaft of the grinder, it is difficult to apply to the existing grinder.
  • the prior art does not require a separate tool for fastening, but it is connected to a rotating body and shakes during high-speed rotation due to a thrust bearing between the supports, making it difficult to use at high speed, and there is a problem that the balance is not well held during fastening. , there was also a problem in that the rotating means and the support were difficult to be integrally coupled.
  • the present invention has been devised to solve the above problems, and an object of the present invention is not only to be able to quickly and easily fasten the grinder and the grinder wheel with little force without tools, but also to seat the grinder wheel safely and to use it.
  • an object of the present invention is not only to be able to quickly and easily fasten the grinder and the grinder wheel with little force without tools, but also to seat the grinder wheel safely and to use it.
  • anyone can easily fasten the grinder wheel without a tool on the fastening nut, as well as the rotational force of the grinder and the rotational force of the grinder wheel are rotated in opposite directions to prevent separation, so it can be used safely.
  • the grinder wheel is resiliently seated on the rotating shaft, the grinder wheel can be securely fastened to the grinder as they are in perfect contact with each other.
  • An object of the present invention is to provide a grinder equipped with a one-touch coupler and a stopper that can perform a grinder operation while blocking the
  • a grinder equipped with a one-touch coupler and a stopper of the present invention for achieving the above object is a grinder for grinding by fastening a grinder wheel with one touch.
  • a power transmission gear integrally connected to the inside and provided with a gear to rotate, a seating shaft integrally stepped on the upper side of the power transmission gear, and a seating bushing that is seated on the outside of the seating shaft and has an open upper side, and the power transmission a power transmission unit integrally connected to the lower side of the gear and comprising a stopper connection shaft having one surface chamfered; a cylindrical seating body seated on an upper portion of the seating bushing of the power transmission unit to facilitate fastening to the grinder wheel; a wing fastening part having a plurality of blades formed to fix the grinder wheel on the upper outer periphery of the seating body to be seated on the seating body and rotating in a reverse direction to the grinder wheel; a plate-shaped elastic washer seated between the seating body and the wing fastening portion so that the grinder wheel
  • the wing fastening portion includes a ring-shaped fastening body having an inner screw formed therein to be screwed with the rotation transmission shaft, and a plurality of fastening wings integrally protruding at predetermined intervals in the shape of a plurality of wings on the outer periphery of the fastening body, and the fastening wings It is characterized in that it consists of a seating recess recessed at a predetermined interval between the , and an inclined seating part inclined inward so that the central part of the grinder wheel is inserted into the lower side of the fastening wing and is seated while the grinder wheel is rotated.
  • a curved inclined part is formed on one side of the fastening wing of the wing fastening part to allow the grinder wheel to be easily inserted into the inclined seating part, and the other side of the fastening wing of the wing fastening part is vertical so that the grinder wheel is fixed while being seated in the inclined seating part. It is characterized in that it is formed as a vertical stopper part formed in the shape.
  • the seating body includes a circular body in close contact with the elastic washer, an insertion hole drilled in the center of the body to be inserted into the rotation transmission shaft, and a ring-shaped seating ring protruding upward on the outer periphery of the insertion hole and , It is characterized in that it is composed of a concave-convex close contact with a concave-convex shape to prevent sliding while in close contact with the elastic washer on the outer periphery of the body.
  • the elastic washer includes an elastic body formed in a plate shape to form an elastic force at the upper portion of the seating body, a seating hole through which the seating ring is inserted in the center of the elastic body, and a rotation transmission shaft on the outer periphery of the seating hole and It is characterized in that it consists of a stepped shaft seating portion so as to be in close contact, and a fastening attachment portion that extends flat integrally on the inner periphery of the elastic body and is in close contact with the wing fastening portion.
  • the power stopper includes a fixed shaft that restrains power while being detached from the stopper fastening part of the power transmission unit, a spring seated inside the fixed shaft to maintain elastic force, and a stopper lever connected to the outside of the fixed shaft and gripped by hand. characterized in that
  • a wheel fixing body recessed in a circular shape downwards, one side of the wheel fixing body is opposite the wing fastening part to be seated on the lower side thereof, and the other side is vertically formed. It is characterized in that it is composed of a wing protrusion having a vertical surface formed therein, and a concave seating part cut so that the wing fastening part is concave between the wing protrusion.
  • the wing fastening part has a seating body that is coupled with the rotary shaft of the grinder to seat the wing fastening part, so it can be fast and easily fastened without tools with little force, and can be used safely and safely by seating the grinder wheel,
  • a curved inclined portion inclined to a curved surface is formed on the lower side of the blade formed on one side of the wing fastening portion, the grinder wheel is easily seated on the inclined seating portion along the curved insertion portion so that the grinder wheel can be conveniently fastened,
  • a vertical stopper cut at a right angle is formed to prevent separation as the grinder wheel rotates, so it can be used safely in the field.
  • the grinder wheel is elastically seated on the rotating shaft and perfectly close to each other, so that the grinder wheel can be safely fastened to the grinder,
  • a power stopper is provided on one side of the grinder to block the rotation of the power transmission unit while detaching it from the lower end of the power transmission unit. It has the effect of being able to work with the grinder while blocking it.
  • FIG. 1 is a schematic view showing a grinder according to the present invention.
  • Figure 2 is a photograph of the main part of the grinder according to the present invention.
  • Figure 3 is an exploded perspective view of the grinder according to the present invention.
  • FIG. 4 is a cross-sectional view of a grinder according to the present invention.
  • Figure 5 is a state diagram showing a wing fastening according to the present invention.
  • FIG. 6 is a state diagram showing a seating body according to the present invention.
  • FIG. 7 is a state diagram showing an elastic washer according to the present invention.
  • FIG. 8 is a state diagram showing a grinder wheel according to the present invention.
  • FIG. 9 is a state diagram showing a conventional grinder wheel fastener.
  • a grinder equipped with a one-touch coupler and a stopper according to the present invention is a grinder 1 for grinding by fastening a grinder wheel 3 with one touch, as shown in FIGS. 1 to 3 , and a rotation shaft of the grinder 1
  • the power transmission unit 10 fastened to (2) and rotated, the seating body 20 seated on the upper side of the power transmission unit 10, and the blade coupling unit 30 rotating in the opposite direction to the grinder wheel 3 ), and an elastic washer 40 formed in the shape of a plate, and a power stopper 50 that blocks the rotation of the power transmission unit 10 .
  • the power transmission unit 10 includes a rotation transmission shaft 11 fastened to the rotation shaft 2 of the grinder 1 and rotated, and a gear integrally connected to the inside of the rotation transmission shaft 11 to rotate.
  • the seating body 20 is seated on the seating bushing 14 of the power transmission unit 10 and is formed in a cylindrical shape to facilitate fastening to the grinder wheel 3, and the elastic washer 40 ), a circular body 21 in close contact with the rotation transmission shaft 11, an insertion hole 22 drilled in the center of the body 21 to be inserted into the rotation transmission shaft 11, and an upper portion of the outer periphery of the insertion hole 22 It is composed of a ring-shaped seating ring 23 protruding upward, and a close contact concavo-convex portion 24 formed in a concave-convex shape to prevent sliding while in close contact with the elastic washer 40 on the outer periphery of the body 21 .
  • the wing fastening part 30 has a plurality of blades formed so as to be seated on the seating body 20 by fixing the grinder wheel 3 to the upper outer periphery of the seating body 20 , so that the grinder wheel 3 ) rotated in the opposite direction, and a ring-shaped fastening body 31 having an inner screw formed therein to be screwed with the rotation transmission shaft 11, and a plurality of wing-shaped intervals on the outer periphery of the fastening body 31
  • the fastening wing 32 protruding integrally with the fastening blade 32, the seating recessed portion 33 recessed at a predetermined interval between the fastening wing 32, and the central portion of the grinder wheel 3 on the lower side of the fastening wing 32 It is cut so as to be inserted and the grinder wheel 3 is rotated and is composed of an inclined seating part 34 inclined inward to be seated.
  • a curved inclined part 35 inclined to a curved surface so that the grinder wheel 3 can be easily inserted into the inclined seating part 34 is formed, and the wing
  • the other side of the fastening wing 32 of the fastening part 30 is formed with a vertical stopper part 36 formed in a vertical shape so that the grinder wheel 3 is fixed while being seated on the inclined seating part 34 .
  • the elastic washer 40 is seated between the seating body 20 and the wing fastening part 30 so that the grinder wheel 3 is elastically attached to the rotation transmission shaft 11 while being seated in a plate shape.
  • the elastic body 41 formed in a plate shape to form an elastic force in the upper portion of the seating body 20, and a seating hole through which the seating ring 23 is inserted in the center of the elastic body 41 ( 42) and a stepped shaft seating portion 43 so as to be in close contact with the rotation transmission shaft 11 on the outer periphery of the seating hole 42, and the elastic body 41 integrally extending flat on the inner periphery of the wings It is composed of a fastening part 44 that is in close contact with the fastening part 20 .
  • the power stopper 50 is seated in a through hole penetrated at one side of the grinder 1 , and is attached to and detached from the stopper connection shaft 15 of the power transmission unit 10 , the power transmission unit A fixed shaft 51 that blocks the rotation of (10) and restrains the power while being detached from the stopper fastening part 11 of the power transmission part 10, and is seated on the inside of the fixed shaft 51 to increase the elastic force It consists of a spring 52 to hold, and a stopper lever 53 connected to the outside of the fixed shaft 51 and gripped by hand.
  • the center portion of the grinder wheel 3 has a wheel fixing body 61 recessed in a circular shape downward to the inner side, and the wing fastening part 30 is opposite to the inside of the wheel fixing body 61, and the The wing fastening portion 30 is formed between the wing protrusion 62 having a slanted inclined surface 62a on one side and a vertical surface 62b formed vertically on the other side to be seated on the lower side, and the wing protrusion 62 . It is composed of a concave seat portion 63 that is cut to be concave.
  • the grinder provided with a one-touch coupler and a stopper according to the present invention, as shown in FIGS.
  • the seating body 20 is seated, and the grinder wheel 3 and the wing fastening part 30 rotating in the reverse direction are fastened to the upper part, and between the seating body 20 and the wing fastening part 30 is a plate shape.
  • of the elastic seating washer 40 is seated and completely fastened to each other, and a power stopper 50 for blocking rotation of the power transmission unit 10 is provided on one side of the grinder to block the work of the grinder.
  • the rotation transmission shaft 11 fastened to the rotation shaft 2 of the grinder 1 rotates, and the power transmission shaft 11 is integrally connected to the inside of the rotation transmission shaft 11 to form a gear.
  • the transmission gear 12 is rotated, the grinder wheel is rotated, and a seating shaft 13 integrally stepped and connected is formed on the upper side of the power transmission gear 12, and a seating bushing 14 with an open upper side is formed on the upper side of the power transmission gear 12. It is safely seated, and is integrally connected to the lower side of the power transmission gear 12 to form a stopper connection shaft 15 having a chamfered surface, so that the power stopper 50 can operate accurately.
  • the seating body 20 has a circular body 21 is formed in close contact with the elastic washer 40, the insertion hole in the center of the body 21 so as to be inserted into the rotation transmission shaft 11 ( 22), a ring-shaped seating ring 23 protrudes upward on the outer periphery of the insertion hole 22, and a concave-convex close contact concave-convex portion 24 is formed on the outer periphery of the body 21. It is formed and is in close contact with the elastic washer 40 to prevent sliding.
  • the seating body 20 is formed in a cylindrical shape to be seated on the seating bushing 14 of the power transmission unit 10 so that it can be very easily fastened to the grinder wheel 3, as well as a resilient washer 40 and The grinder wheel can be seated while maintaining a predetermined distance.
  • the wing fastening portion 30 is formed with a plurality of wings to be seated on the seating body 20 and rotates in the opposite direction to the grinder wheel 3 while in close contact with the upper outer periphery of the seating body 20 , the grinder The wheel (3) is perfectly fixed.
  • the wing fastening portion 30 is integrally protruding at predetermined intervals in the shape of a plurality of wings on the outer periphery of the ring-shaped fastening body 31 having an inner screw formed therein so as to be screwed with the rotation transmission shaft 11 on the inside.
  • Fastening blades 32 are formed, and seating recesses 33 at a predetermined interval are recessed between the fastening blades 32, and the central portion of the grinder wheel 3 is inserted below the fastening blades 32.
  • the incised inclined seating part 34 is inclined inward so that the grinder wheel 3 is rotated and can be safely seated.
  • a curved inclined part 35 inclined to a curved surface so that the grinder wheel 3 can be easily inserted into the inclined seating part 34 is formed, and the wing
  • the grinder wheel 3 is formed with a vertical stopper part 36 formed in a vertical shape to be fixed while being seated on the inclined seating part 34, so that the grinder wheel 3 is
  • the grinder wheel which is easily inserted into the wing fastening part 30 and is perfectly fixed and rotated at high speed, can be safely fixed and used safely. It can be used safely and without tools.
  • the elastic washer 40 is formed in a plate shape to be seated between the seating body 20 and the wing fastening part 30, so that the grinder wheel 3 is elastically in close contact with the rotation transmission shaft 11. As it is seated and always level, it can be used safely without any shaking, and anyone can conveniently and flexibly fasten the grinder wheel with one touch.
  • the power stopper 50 is seated in a through hole penetrated on one side of the grinder 1 and is detachably attached to the stopper connection shaft 15 of the power transmission unit 10 while the power transmission unit ( By blocking the rotation of 10), it is possible to conveniently cut off the grinder work without separately shutting off the power by restraining the grinder wheel while holding it by hand during the grinder work.
  • a wheel fixing body 61 recessed in a circular shape to the lower side is formed in the center of the grinder wheel 3 , and the wing fastening part 30 is opposite to the inside of the wheel fixing body 61 .
  • a slanted inclined surface 62a is formed on one side to be seated on the lower side, and a wing protrusion 62 having a vertical surface 62b formed vertically is formed on the other side, and the wing fastening portion between the wing protrusions 62
  • the concave seating part 63 cut so that the 30 is recessed, the wing protrusion 62 is seated on the lower side of the wing fastening part 30 and is perfectly fastened so that the grinder wheel can be safely and without tools. do.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

La présente invention est caractérisée en ce qu'elle comprend : une unité de transfert de puissance fixée à un arbre rotatif d'une meuleuse de façon à transférer une puissance de rotation ; un corps de siège cylindrique logé sur la partie supérieure d'une douille de siège de l'unité de transfert de puissance de manière à faciliter la fixation à une roue de meuleuse ; une unité de fixation d'aile ayant de multiples ailes formées sur celle-ci et tournées de telle sorte que la roue de meuleuse est fixée au bord périphérique externe de la partie supérieure du corps de siège et est logée sur le corps de siège ; une rondelle de siège élastique en forme de coupelle logée entre le corps de siège et l'unité de fixation d'aile de telle sorte que la roue de meuleuse est logée élastiquement sur l'arbre rotatif ; et un dispositif d'arrêt de puissance logé dans un orifice traversant s'étendant à travers un côté de la roue de meuleuse de façon à être fixé à un arbre de liaison de dispositif d'arrêt de l'unité de transfert de puissance ou détaché de celui-ci, ce qui permet de bloquer la rotation de l'unité de transfert de puissance. La présente invention est avantageuse en ce que la meuleuse et la roue de meuleuse peuvent être fixées rapidement et facilement en exerçant une force limitée ; la roue de meuleuse peut être facilement fixée à la meuleuse en utilisant la puissance de rotation de la roue de meuleuse, même sans écrou de fixation ni outil ; la puissance de rotation de la meuleuse et la puissance de rotation de la roue de meuleuse tournent dans des directions opposées, empêchant ainsi le détachement et garantissant une utilisation sûre ; la roue de meuleuse est logée de manière élastique sur l'arbre rotatif de telle sorte que celles-ci sont complètement poussées l'une contre l'autre, ce qui permet de fixer de manière sûre la roue de meuleuse à la meuleuse ; et la roue de meuleuse est maintenue à la main et est contrainte ainsi pendant une opération de meulage de telle sorte que, même sans bloquer séparément l'alimentation électrique, l'opération de meulage peut être effectuée tout en bloquant le fonctionnement de la meuleuse de façon pratique.
PCT/KR2021/009417 2020-07-21 2021-07-21 Meuleuse ayant un coupleur à touche unique et un dispositif d'arrêt WO2022019650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200090051A KR102178942B1 (ko) 2020-07-21 2020-07-21 원터치커플러와 스토퍼가 구비된 에어 그라인더
KR10-2020-0090051 2020-07-21

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Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
KR102178942B1 (ko) * 2020-07-21 2020-11-13 (주) 비티케이 원터치커플러와 스토퍼가 구비된 에어 그라인더
WO2022261190A1 (fr) * 2021-06-08 2022-12-15 Milwaukee Electric Tool Corporation Outil électrique comportant un système de fixation sans outil
KR102446463B1 (ko) * 2022-03-04 2022-09-23 (주) 비티케이 원터치 스토퍼가 구비된 에어 그라인더
KR102445960B1 (ko) * 2022-03-04 2022-09-21 (주) 비티케이 그라인더용 바란스유지 원터치카플러

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JPH03113749U (fr) * 1990-03-09 1991-11-21
KR20110087761A (ko) * 2010-01-27 2011-08-03 양산기공 주식회사 에어 그라인더
KR20140002001U (ko) * 2012-09-27 2014-04-04 현대중공업 주식회사 디스크 패드 공회전 방지를 위한 그라인더
KR101934511B1 (ko) * 2018-05-14 2019-01-02 김창성 연마디스크 체결용 커플러
KR20190027506A (ko) * 2017-09-07 2019-03-15 (주)태룡 핸드 그라인더
KR102178942B1 (ko) * 2020-07-21 2020-11-13 (주) 비티케이 원터치커플러와 스토퍼가 구비된 에어 그라인더

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KR101142480B1 (ko) * 2010-02-17 2012-05-07 이일영 탄성 흡진후드를 구비한 핸드 그라인더
JPWO2017110156A1 (ja) * 2015-12-25 2018-10-11 ニューレジストン株式会社 研削装置および当該研削装置用の研削具
KR20180137700A (ko) * 2017-06-19 2018-12-28 박근식 그라인더 휠 고정모듈 및 그라인더 휠 고정방법

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Publication number Priority date Publication date Assignee Title
JPH03113749U (fr) * 1990-03-09 1991-11-21
KR20110087761A (ko) * 2010-01-27 2011-08-03 양산기공 주식회사 에어 그라인더
KR20140002001U (ko) * 2012-09-27 2014-04-04 현대중공업 주식회사 디스크 패드 공회전 방지를 위한 그라인더
KR20190027506A (ko) * 2017-09-07 2019-03-15 (주)태룡 핸드 그라인더
KR101934511B1 (ko) * 2018-05-14 2019-01-02 김창성 연마디스크 체결용 커플러
KR102178942B1 (ko) * 2020-07-21 2020-11-13 (주) 비티케이 원터치커플러와 스토퍼가 구비된 에어 그라인더

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