US20180304444A1 - Polishing brush - Google Patents

Polishing brush Download PDF

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Publication number
US20180304444A1
US20180304444A1 US15/521,266 US201415521266A US2018304444A1 US 20180304444 A1 US20180304444 A1 US 20180304444A1 US 201415521266 A US201415521266 A US 201415521266A US 2018304444 A1 US2018304444 A1 US 2018304444A1
Authority
US
United States
Prior art keywords
grinding element
grinding
wire
groove
polishing brush
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US15/521,266
Other languages
English (en)
Inventor
Suguru Matsushita
Norihiko Sumiyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xebec Technology Co Ltd
Taimei Chemicals Co Ltd
Original Assignee
Xebec Technology Co Ltd
Taimei Chemicals Co Ltd
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 Xebec Technology Co Ltd, Taimei Chemicals Co Ltd filed Critical Xebec Technology Co Ltd
Assigned to TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD. reassignment TAIMEI CHEMICALS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MATSUSHITA, SUGURU, SUMIYOSHI, NORIHIKO
Publication of US20180304444A1 publication Critical patent/US20180304444A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/145—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face having a brush-like working surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds

Definitions

  • the present invention relates to a polishing brush having a grinding element holder holding a plurality of wire-shaped grinding elements.
  • Patent Literature 1 Such a polishing brush is described in Patent Literature 1.
  • a plurality of wire-shaped grinding elements are subdivided to form a plurality of grinding element bundles, and the grinding element bundles are held apart from each other in a grinding element holder.
  • Each grinding element bundle has a circular shape in cross section, and the grinding element holder has a plurality of holding holes for holding the grinding element bundles.
  • the holding holes are circular and disposed apart from each other.
  • the grinding element bundles have respective base end portions inserted in the holding holes and fixed to the grinding element holder with an adhesive filling the holding holes.
  • Patent Literature 1 WO2004/009239
  • a polishing brush having a grinding element bundle held in a holding hole with a shape adapted to the cross-sectional shape of the bundle
  • the grinding element bundle fails to be inserted in the holding hole. Therefore, at the time of manufacturing of the polishing brush, it is necessary to strictly control the diameter dimension and shape of the grinding element bundle of wire-shaped grinding elements within a predetermined range corresponding to the inner diameter size and shape of the holding hole provided in the grinding element holder.
  • an object of the present invention is to provide a polishing brush in which a plurality of wire-shaped grinding elements can be readily held in the grinding element holder.
  • the present invention provides a polishing brush including a plurality of wire-shaped grinding elements and a grinding element holder holding the wire-shaped grinding elements, characterized in that the grinding element holder has a groove, and that first end portions of the wire-shaped grinding elements are inserted in the groove and fixed to the grinding element holder with an adhesive filling the groove.
  • the wire-shaped grinding elements are inserted in the groove and fixed with an adhesive, it is possible to hold the wire-shaped grinding elements in the grinding element holder without strictly controlling the shape of the wire-shaped grinding elements.
  • the wire-shaped grinding elements may be subdivided to form a plurality of grinding element bundles, and the grinding element bundles may be fixed to the grinding element holder in such a state as to be kept apart from each other.
  • the grinding element bundle is deformed to conform to the groove whereby the base end portion of the grinding element bundle can be inserted in the groove.
  • the grinding element bundles can be held in the grinding element holder.
  • the grinding element bundles held in the grinding element holder are kept apart from each other to allow chips to be efficiently ejected during grinding work.
  • the polishing brush can be formed with a smaller amount of grinding elements.
  • the groove may be an annular groove formed around the axis of center of rotation, and the grinding element bundles may be inserted at regular intervals in the annular groove.
  • each of the grinding element bundles may have a circular shape in cross section in a direction orthogonal to a length direction of each of the wire-shaped grinding elements at an end portion of the grinding element bundle inserted in the groove. This configuration enables the grinding element bundle to be held in the grinding element holder without strictly controlling the diameter size of the grinding element bundle.
  • each of the wire-shaped grinding elements may be formed of an assembly of inorganic filaments impregnated and solidified with resin. Since the wire-shaped grinding element formed of inorganic filaments has high hardness, the grinding/polishing capability of the polishing brush is improved even with a small amount of grinding elements.
  • FIG. 1 is a perspective view of a polishing brush in a first embodiment.
  • FIG. 2 is an exploded perspective view of the polishing brush.
  • FIG. 3 is an illustration of the polishing brush and the polishing brush body.
  • FIG. 4 is an illustration of a polishing brush in a second embodiment.
  • a polishing brush to which the present invention is applied will be described below with reference to the drawings.
  • the direction of the axis of center of rotation of the polishing brush is the top-bottom direction of the polishing brush in accordance with to the top-bottom direction in FIG. 1 , for the sake of convenience.
  • FIG. 1 is an illustration of a polishing brush to which the present invention is applied.
  • FIG. 2 is an exploded perspective view showing the polishing brush shown in FIG. 1 disassembled into a brush case and a polishing brush body.
  • FIG. 3( a ) is a cross-sectional view of the polishing brush cut through a portion fixed with screws
  • FIG. 3( b ) is a bottom view of the polishing brush
  • FIG. 3( c ) is a longitudinal sectional view of the polishing brush body.
  • the polishing brush 1 in this embodiment includes a cup-shaped brush case 6 having a shank 5 coupled to the head of a machine tool (grinder), a polishing brush body 7 having an upper side portion inserted in the brush case 6 , and screws 8 and 9 for fixing the polishing brush body 7 to a predetermined position in the brush case 6 .
  • the brush case 6 is made of metal and includes a cylinder-shaped peripheral wall 11 and a circular top plate 12 closing the upper end opening of the peripheral wall 11 .
  • the shank 5 extends upward from the central portion of the top plate 12 .
  • a rod-shaped support shaft 13 extends downward from the central portion of the lower surface of the top plate 12 .
  • the support shaft 13 , the shank 5 , and the peripheral wall 11 are coaxial.
  • the peripheral wall 11 of the brush case 6 has guide holes 14 and 15 extending in the shape of a groove parallel to the axis of center of rotation L.
  • the guide holes 14 and 15 are formed in point symmetry with the axis of center of rotation L interposed therebetween.
  • the peripheral wall 11 of the brush case 6 is made of aluminum, and the support shaft 13 is made of stainless steel.
  • the polishing brush body 7 includes a plurality of grinding element bundles 22 , each formed of a plurality of wire-shaped grinding elements 21 , and an annular grinding element holder 23 holding the grinding element bundles 22 .
  • the grinding element holder 23 is made of metal.
  • the grinding element holder 23 has a center hole 24 , which is a shaft hole allowing the support shaft 13 to pass through.
  • the grinding element holder 23 has a pair of screw holes 25 and 26 at point-symmetric positions with the axis of center of rotation L interposed therebetween. As shown in FIG. 3( a ) , the screw holes 25 and 26 pass through the grinding element holder 23 in the radius direction.
  • the grinding element holder 23 has an annular grinding element holding groove (groove) 28 formed around the axis of center of rotation L on its lower end surface, namely, a grinding member holding surface 27 .
  • the grinding element bundles 22 have respective base end portions 22 a inserted in the grinding element holding groove 28 in such a state as to be kept apart from each other and are fixed to the grinding element holder 23 with an adhesive 29 filling the grinding element holding groove 28 .
  • the adhesive 29 is, for example, of a silicone resin type or an epoxy resin type.
  • each grinding element bundle 22 is a bundle shaped in a circle.
  • each grinding element bundle 22 has a circular shape in cross section in a direction orthogonal to the length direction of each wire-shaped grinding element 21 at an end portion of the grinding element bundle 22 inserted in the grinding element holding groove 28 .
  • the grinding element bundles 22 are inserted and fixed at regular intervals in the grinding element holding groove 28 . In a state in which the grinding element bundles 22 are fixed to the grinding element holder 23 , the grinding element bundles 22 extend downward from the grinding member holding surface 27 of the grinding element holder 23 .
  • Each wire-shaped grinding element 21 is formed of an assembly of alumina filaments as inorganic filaments impregnated and hardened with a thermosetting binder resin such as silicone resin, phenol resin, epoxy resin, polyimide resin, polymaleimide resin, unsaturated polyester resin, and urethane resin.
  • a thermosetting binder resin such as silicone resin, phenol resin, epoxy resin, polyimide resin, polymaleimide resin, unsaturated polyester resin, and urethane resin.
  • a thermoplastic resin such as nylon may be used as the binder resin.
  • the filament assembly is a group of 250 to 3000 alumina filaments having a fiber diameter of 8 to 50 ⁇ m. The diameter of the filament assembly is 0.1 mm to 2 mm. The filament assembly may be twisted.
  • each grinding element bundle 22 when the base end portion 22 a of each grinding element bundle 22 is inserted into the grinding element holding groove 28 , the subdivided wire-shaped grinding elements 21 are simply put together and bundled.
  • the wire-shaped grinding elements 21 subdivided and bundled are tied together with the adhesive 29 in the form of the grinding element bundle 22 when being fixed to the grinding element holder 23 with the adhesive 29 in the grinding element holding groove 28 .
  • the support shaft 13 is passed through the center hole 24 (shaft hole) of the grinding element holder 23 , and the upper portion of the polishing brush body 7 (the side of the grinding element holder 23 ) is inserted in the inside of the brush case 6 .
  • the screws 8 and 9 are put through the guide holes 14 and 15 from the outer peripheral side of the brush case 6 , and the screws 8 and 9 are secured to the screw holes 25 and 26 of the grinding element holder 23 . In doing so, the screws 8 and 9 are tightened until the tip ends of the shafts of the screws 8 and 9 abut on the outer peripheral surface of the support shaft 13 .
  • the grinding element holder 23 is thus fixed to the support shaft 13 of the brush case 6 through the screws 8 and 9 .
  • the region and the vicinity thereof in abutment with the tip ends of the screws 8 and 9 are flat surfaces.
  • the shank 5 is coupled to the head of a machine tool and rotated around the axis of center of rotation L, and the free ends (lower ends) of the grinding element bundles 22 are pressed against the surface of the work.
  • the wire-shaped grinding elements 21 included in the grinding element bundle 22 are worn due to the work operation and the length of the protrusion from the lower edge 6 a of the brush case 6 is reduced, the screws 8 and 9 secured to the grinding element holder 23 through the guide holes 14 and 15 are loosened.
  • the polishing brush body 7 is moved in the direction of the axis of center of rotation L in the inside of the brush case 6 , and thereafter the screws 8 and 9 are tightened. With this operation, the position in the direction of the axis of center of rotation L of the polishing brush body 7 in the inside of the brush case 6 is adjusted, so that the length of the protrusion of the free end of the wire-shaped grinding element 21 from the brush case 6 is adjusted.
  • the grinding element bundles 22 are inserted in the grinding element holding groove 28 provided to the grinding element holder 23 and fixed with the adhesive 29 filling the grinding element holding groove 28 , rather than being inserted in holding holes adapted to the cross-sectional shape of each bundle 22 . Therefore, even when the diameter size or the like of each grinding element bundle 22 is larger than the width of the grinding element holding groove 28 , the grinding element bundle 22 is deformed to conform to the grinding element holding groove 28 , whereby the base end portion 22 a of the grinding element bundle 22 can be inserted into the grinding element holding groove 28 . Thus, even when each grinding element bundle 22 of the wire-shaped grinding elements 21 has a different diameter size, the grinding element bundles 22 can be held in the grinding element holder 23 .
  • the grinding element bundles 22 held in the grinding element holder 23 are kept apart from each other to allow chips to be ejected efficiently during grinding work.
  • the heat dissipation effect is high.
  • the polishing brush 1 can be formed with a smaller amount of grinding elements.
  • each wire-shaped grinding element 21 is formed of an assembly of inorganic filaments impregnated and solidified with resin and has high hardness, thereby providing the polishing brush 1 with a high grinding/polishing capability even when the grinding element bundles 22 are held apart from each other in the grinding element holder 23 .
  • FIG. 4( a ) is an illustration of a polishing brush in a second embodiment to which the present invention is applied
  • FIG. 4( b ) is a perspective view of the grinding element holder for the polishing brush in the second embodiment.
  • the polishing brush 51 in the second embodiment has a configuration corresponding to the polishing brush 1 in the first embodiment, and the corresponding parts are denoted with the same reference signs and will not be further elaborated.
  • the polishing brush 51 includes a shank member 52 having a shank 5 coupled to the head of a machine tool (drive device), an annular grinding element holder 23 through which the lower side portion of the shank member 52 passes, and a locknut 53 screwed onto the lower end portion of the shank member 52 .
  • the outer peripheral side surface of the grinding element holder 23 serves as a grinding member holding surface 27 , and a plurality of grinding element bundles 22 protrude radially outward from the grinding member holding surface 27 .
  • the grinding element holder 23 and the grinding element bundles 22 constitute the polishing brush body 7 .
  • the shank member 52 has the shank 5 , a collar 54 , and a bolt 55 from the top to the bottom.
  • the outer peripheral surface of the bolt 55 has a male thread screwed into the locknut 53 .
  • a portion of the shank member 52 that is lower than the collar 54 is inserted in the center hole 24 of the grinding element holder 23 (see FIG. 4( b ) ), and the lower end portion of the bolt 55 protrudes downward from the grinding element holder 23 .
  • the grinding element holder 23 has an annular grinding element holding groove (groove) 28 formed on its grinding member holding surface 27 around the axis of center of rotation L.
  • the grinding element bundles 22 have respective base end portions 22 a inserted in the grinding element holding groove 28 in such a state as to be kept apart from each other and are fixed to the grinding element holder 23 with an adhesive 29 filling the grinding element holding groove 28 .
  • the grinding element bundles 22 are inserted and fixed at regular intervals in the grinding element holding groove 28 .
  • Each grinding element bundle 22 is made from the wire-shaped grinding elements 21 formed of an assembly of inorganic filaments impregnated and solidified with resin.
  • Each grinding element bundle 22 is a bundle shaped in a circle.
  • the locknut 53 is screwed from below onto the lower end portion of the bolt 55 protruding downward from the grinding element holder 23 .
  • the locknut 53 is screwed onto the bolt 55 until the grinding element holder 23 becomes sandwiched between the collar 54 and the locknut 53 of the shank member 52 , whereby the grinding element holder 23 is fixed to the shank member 52 .
  • the shank 5 When burring or grinding/polishing work on a surface is performed on a work using the polishing brush 51 , the shank 5 is coupled to the head of a machine tool and rotated around the axis of center of rotation L, and the free ends (the ends on the outer peripheral side) of the grinding element bundles 22 are pressed against the surface of the work.
  • the locknut 53 is loosened and removed from the shank member 52 , and the grinding element holder 23 is then removed from the shank member 52 for replacement of the polishing brush body 7 alone with a new one.
  • the second embodiment can achieve the same operation and effects as in the first embodiment.
  • a plurality of grinding element holding grooves 28 may be provided in the grinding element holder 23 .
  • the grinding element holding groove 28 may be provided linearly on the grinding member holding surface 27 .
  • the wire-shaped grinding elements 21 are bundled into a circular shape in the foregoing examples, the wire-shaped grinding elements 21 may be bundled into other shapes.
  • the wire-shaped grinding elements 21 may be bundled such that the cross-sectional shape of the base end portion 22 a inserted as a grinding element bundle 22 in the grinding element holding groove 28 is oval, rectangular, or square.
  • the wire-shaped grinding elements 21 are subdivided to form the grinding element bundles 22 , and the grinding element bundles 22 are fixed to the grinding element holder 23 so as to be kept apart from each other.
  • the wire-shaped grinding elements 21 may not be subdivided but may be arranged in an annular shape such that a first end portion of each wire-shaped grinding element 21 is inserted in the grinding element holding groove 28 to be fixed to the grinding element holder 23 .
  • the wire-shaped grinding element 21 used may be formed of an assembly of silicon carbide fibers, carbon fibers, silicon nitride fibers, glass fibers, and the like impregnated and solidified with resin.
  • the wire-shaped grinding element 21 used may be formed of nylon, abrasive-containing nylon, abrasive-containing rubber, stainless steel, brass, and the like.
  • the grinding element bundle 22 may have a quadrangular shape in cross section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US15/521,266 2014-10-27 2014-10-27 Polishing brush Abandoned US20180304444A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/078531 WO2016067346A1 (ja) 2014-10-27 2014-10-27 研磨ブラシ

Publications (1)

Publication Number Publication Date
US20180304444A1 true US20180304444A1 (en) 2018-10-25

Family

ID=55856741

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/521,266 Abandoned US20180304444A1 (en) 2014-10-27 2014-10-27 Polishing brush

Country Status (5)

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US (1) US20180304444A1 (ja)
JP (1) JP6462711B2 (ja)
CN (1) CN107073690B (ja)
DE (1) DE112014007105T5 (ja)
WO (1) WO2016067346A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11433506B2 (en) * 2016-07-15 2022-09-06 Taimei Chemicals Co., Ltd. Wheel brush and grinding element bundle holder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114248463A (zh) * 2020-09-21 2022-03-29 江苏金风科技有限公司 纤维织物及其治具和制造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324272A (en) * 1941-03-28 1943-07-13 Tennant Co G H Wire brush abrading device
US2608034A (en) * 1951-08-10 1952-08-26 Howard A Fromson Abrasive wire brush for internal grinding and cutting
US3969090A (en) * 1973-06-22 1976-07-13 Anderson Corporation Industrial brush
US5129191A (en) * 1988-08-05 1992-07-14 Jason Inc. Adhesive bonded flexible abrasive finishing tool
US5554068A (en) * 1994-12-13 1996-09-10 Minnesota Mining And Manufacturing Company Abrasive flap brush and method and apparatus for making same
US20050153642A1 (en) * 2002-07-22 2005-07-14 Suguru Matsushita Method of producing brush-like grind stone, the brush-like grind stone, and brush for grind machine
US20100041324A1 (en) * 2006-02-20 2010-02-18 Tatsuo Shinoda Brush-like Grindstone
US8460063B2 (en) * 2008-02-27 2013-06-11 Toyota Jidosha Kabushiki Kaisha Polishing apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS482426Y1 (ja) * 1965-07-15 1973-01-22
JPH0329260U (ja) * 1989-08-01 1991-03-22
JPH085018Y2 (ja) * 1989-10-23 1996-02-14 帝人株式会社 円盤状ブラシ
US5157874A (en) * 1990-08-20 1992-10-27 Peng Shih Jen Rotary multi-brushes
JP2003062761A (ja) * 2001-08-24 2003-03-05 Xebec Technology Co Ltd 研磨機用ブラシ
JP2005199371A (ja) * 2004-01-14 2005-07-28 Xebec Technology Co Ltd ブラシ状砥石
JP2005254398A (ja) * 2004-03-12 2005-09-22 Toray Monofilament Co Ltd バリ取り機用カップブラシ
JP2006116687A (ja) * 2004-10-20 2006-05-11 Kowa Co Ltd 研削、研磨、表面処理、洗浄、ばり取り用ブラシ
JP4942409B2 (ja) * 2006-07-07 2012-05-30 優一郎 新崎 ブラシ毛

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324272A (en) * 1941-03-28 1943-07-13 Tennant Co G H Wire brush abrading device
US2608034A (en) * 1951-08-10 1952-08-26 Howard A Fromson Abrasive wire brush for internal grinding and cutting
US3969090A (en) * 1973-06-22 1976-07-13 Anderson Corporation Industrial brush
US5129191A (en) * 1988-08-05 1992-07-14 Jason Inc. Adhesive bonded flexible abrasive finishing tool
US5554068A (en) * 1994-12-13 1996-09-10 Minnesota Mining And Manufacturing Company Abrasive flap brush and method and apparatus for making same
US20050153642A1 (en) * 2002-07-22 2005-07-14 Suguru Matsushita Method of producing brush-like grind stone, the brush-like grind stone, and brush for grind machine
US7434289B2 (en) * 2002-07-22 2008-10-14 Xebec Technology Co. Ltd. Polisher brush having wire-shaped grinding elements
US20100041324A1 (en) * 2006-02-20 2010-02-18 Tatsuo Shinoda Brush-like Grindstone
US8460063B2 (en) * 2008-02-27 2013-06-11 Toyota Jidosha Kabushiki Kaisha Polishing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11433506B2 (en) * 2016-07-15 2022-09-06 Taimei Chemicals Co., Ltd. Wheel brush and grinding element bundle holder

Also Published As

Publication number Publication date
JP6462711B2 (ja) 2019-01-30
JPWO2016067346A1 (ja) 2017-08-03
CN107073690A (zh) 2017-08-18
WO2016067346A1 (ja) 2016-05-06
CN107073690B (zh) 2020-04-10
DE112014007105T5 (de) 2017-07-20

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