WO2023171135A1 - Feuille de traitement, meule de traitement, élément de colonne de traitement et carottier - Google Patents

Feuille de traitement, meule de traitement, élément de colonne de traitement et carottier Download PDF

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Publication number
WO2023171135A1
WO2023171135A1 PCT/JP2023/001195 JP2023001195W WO2023171135A1 WO 2023171135 A1 WO2023171135 A1 WO 2023171135A1 JP 2023001195 W JP2023001195 W JP 2023001195W WO 2023171135 A1 WO2023171135 A1 WO 2023171135A1
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WO
WIPO (PCT)
Prior art keywords
processing
grindstone
sheet
mesh material
bent
Prior art date
Application number
PCT/JP2023/001195
Other languages
English (en)
Japanese (ja)
Inventor
篤 ▲高▼田
恭介 大橋
大地 ▲高▼田
大和 ▲高▼田
Original Assignee
株式会社ナノテム
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 株式会社ナノテム filed Critical 株式会社ナノテム
Publication of WO2023171135A1 publication Critical patent/WO2023171135A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • 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
    • B24D3/04—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 inorganic
    • B24D3/06—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 inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • 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
    • B24D7/18—Wheels of special form

Definitions

  • the present invention relates to a processing sheet, a processing grindstone, a processing column member, and a core drill.
  • a mesh-like sheet is embedded inside an abrasive grain-containing layer.
  • the present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a processing sheet, a processing grindstone, a processing column member, and a core drill that can more firmly fix the processing part to the mesh material. shall be.
  • a processing sheet includes a processing section for processing an object to be processed, and a sheet-like mesh material having a folded section, and the processing section includes: At least a portion of the bent portion of the mesh material is buried.
  • the plurality of bent portions may be arranged at intervals on the mesh material, each having a wave shape, and each bent portion may be embedded in the processed portion.
  • the bent portion may have a wave shape, and at least a portion of the processed portion may be filled in a recess of the bent portion.
  • the mesh material is made of metal that can be plastically deformed, and the processed portion includes a metal binding material in which the bent portion is embedded and adhered to the bent portion, and a metal binding material in the binding material.
  • a plurality of abrasive grains are positioned and used to process the workpiece.
  • the mesh material may include a connecting portion that connects the plurality of bent portions
  • the processing sheet may include a filler in which the connecting portion is embedded.
  • a processing grindstone according to a second aspect of the present invention is a processing grindstone that includes the processing sheet, and the plurality of processing portions are formed on the disk-shaped processing grindstone. They are located on the outer circumferential side and are spaced apart from each other in the rotational direction of the processing grindstone.
  • a processing grindstone is a processing grindstone in which a plurality of processing sheets are arranged in a rotation direction, and two processing sheets adjacent in the rotation direction are provided.
  • the processing parts of the processing sheet are provided at positions shifted from each other in the direction along the rotation axis of the processing grindstone.
  • a processing grindstone is a processing grindstone in which a plurality of processing sheets are arranged in a rotation direction, and two processing sheets adjacent in the rotation direction are provided. The processing portions of the processing sheet are provided at positions shifted from each other in the radial direction of the processing grindstone.
  • a processing column member is a processing column member including the processing sheet, wherein the processing column member is erected with respect to the processing object. It has a bent plate shape, and each of the processing portions is provided at a portion other than the corner portion of the processing column member.
  • a core drill is a core drill including the processing sheet, wherein the mesh material is formed in a cylindrical shape, and the plurality of processing parts are formed of the mesh material. They are arranged along the circumferential direction.
  • the processed portion can be more firmly fixed to the mesh material.
  • FIG. 1 is a plan view of a processing sheet according to a first embodiment of the present invention.
  • 2 is a sectional view taken along line 2-2 in FIG. 1.
  • FIG. 3 is a plan view of a grindstone according to a second embodiment of the present invention.
  • 4 is an enlarged view of a part of FIG. 3.
  • FIG. 5 is a sectional view taken along line 5-5 in FIG. 4.
  • FIG. 7 is a plan view of a grindstone according to a third embodiment of the present invention. It is a side view of the grindstone based on the 3rd Embodiment of this invention, and the figure which expanded the part. It is a top view of the grindstone concerning the 4th embodiment of the present invention, and a partially enlarged view.
  • FIG. 9 is a sectional view taken along line JJ in FIG. 9.
  • FIG. 7 is a partial perspective view of a grindstone according to a fifth embodiment of the present invention. It is a bottom view of the core drill concerning the 6th embodiment of the present invention. It is a side view of the core drill concerning the 6th embodiment of the present invention.
  • 15 is a sectional view taken along line KK in FIG. 14.
  • FIG. It is a sectional view of the sheet for processing concerning the modification of the present invention. It is a sectional view of the sheet for processing concerning the modification of the present invention.
  • the processing sheet 10 includes a mesh material 11 and a plurality of processing parts 15 fixed to the mesh material 11.
  • the processing sheet 10 has a sheet shape extending in the X direction and the Y direction.
  • the mesh material 11 is made of a fibrous material in which wire rods made of metal, for example, stainless steel, are combined in the vertical and horizontal directions, and serves as the core material of the processing sheet 10.
  • the mesh material 11 is flexible and has a sheet shape that can be plastically deformed with a tool such as pliers.
  • the mesh material 11 may be made of metal other than stainless steel, such as copper (for example, brass), nickel, or aluminum, or may be made of glass, nonwoven fabric, woven fabric, carbon fiber, or the like other than metal. Good too. A large number of holes are formed in the mesh material 11 so as to pass through the mesh material 11 in its thickness direction.
  • the ratio of the wire volume of the mesh material 11 that does not include spaces (holes) to the total volume of the mesh material 11 that includes spaces (holes) is 10% or less.
  • the mesh number of the mesh material 11 is preferably #10 to #500, for example. Mesh count is expressed as the number of meshes per inch of length. If the number of meshes in the mesh material 11 is too large, the mesh becomes too fine, making it difficult for the binding material 13 (described later) of the processed portion 15 to penetrate into the mesh material 11, and making it difficult for the processed portion 15 to be firmly fixed to the mesh material 11. Become.
  • the number of meshes in the mesh material 11 is preferably set to #10 to #500.
  • the mesh material 11 is bent into a rectangular (trapezoidal in this example) wave shape.
  • the mesh material 11 includes a plurality of bent portions 12 and a plurality of connecting portions 11R that connect the plurality of bent portions 12.
  • the bent portions 12 are located corresponding to the rectangular wave convex portions formed by the mesh material 11.
  • the plurality of bent portions 12 are arranged at regular intervals along the X direction.
  • Each bent portion 12 has a hat shape when viewed from the Y direction.
  • Each bent portion 12 is embedded in a processed portion 15, respectively.
  • Each fold 12 can be formed by pinching the flat mesh material 11 between pliers or gears.
  • each bending portion 12 has four bending lines 12a, 12b, 12c, and 12d.
  • two folding lines 12b and 12c farthest from the connecting portion 11R are buried in one processed portion 15.
  • the present invention is not limited to this example, and only one of the two bending lines 12b and 12c may be buried in one processed portion 15. Furthermore, all of the four bending lines 12a, 12b, 12c, and 12d may be buried in one processed portion 15. Further, the two bending lines 12a and 12b may be embedded in one processed portion 15.
  • Each processing section 15 has a columnar shape (in this example, a trapezoidal columnar shape) extending along the Y direction, and performs processing such as polishing or grinding of the workpiece.
  • Each processed portion 15 includes an inner portion 15i that fills the hollow of the bent portion 12, and an outer portion 15o located outside the bent portion 12.
  • the inner part 15i and the outer part 15o are integrated by a connecting part passing through a hole in the mesh material 11.
  • the processed portion 15 is formed by plating the mesh material 11 with a metal material such as nickel or copper containing a plurality of abrasive grains 14 .
  • the shape of the plurality of processed parts 15 is not limited to this, and may be formed by being divided in the Y direction.
  • the outer portion 15o of the bent portion 12 may be omitted, and the outer surface of the bent portion 12 and the outer surface of the processed portion 15 may be formed to match.
  • the inner portion 15i of the bent portion 12 may be omitted, and the inner surface of the bent portion 12 and the inner surface of the processed portion 15 may be formed to match.
  • the processing section 15 includes a plurality of abrasive grains 14 for processing a workpiece, and a binding material 13 for bonding the plurality of abrasive grains 14.
  • a plurality of abrasive grains 14 are distributed within the bonding material 13.
  • the abrasive grains 14 are, for example, diamond.
  • the abrasive grains 14 are not limited to diamond, but may be cubic boron nitride (CBN) abrasive grains, or may be a mixture of CBN abrasive grains and diamond.
  • the plurality of abrasive grains 14 may be silicon carbide (SiC), fused alumina (Al 2 O 3 ), or a mixture thereof.
  • the bonding material 13 holds a plurality of abrasive grains 14 inside the bonding material 13 .
  • the binding material 13 is made of, for example, nickel.
  • the bent portion 12 and the binding material 13 are in an adhered state.
  • the binding material 13 is located on both sides of the bent portion 12 in the thickness direction and in the hole inside the bent portion 12 .
  • the binding material 13 enters the hole inside the bent portion 12 and is fixed to the mesh material 11 by an anchor effect. Even if the abrasive grains 14 fall off during processing of the workpiece using the processing sheet 10, the bonding material 13 is scraped and new abrasive grains 14 are exposed. This suppresses a decrease in the sharpness of the processing sheet 10.
  • the binding material 13 is not limited to nickel, but may also be made of metals such as iron, aluminum, copper, aluminum alloys, alloys such as bronze, resins such as phenol resins and epoxy resins, or ceramics such as vitrified. good.
  • the mesh material 11 is exposed to the outside between the plurality of processed parts 15, but the invention is not limited to this, and as shown by the broken line in FIG. 18 may be formed.
  • the connecting portion 11R of the mesh material 11 is embedded in the filler 18.
  • the filler 18 is fixed to the connecting portion 11R by entering the hole inside the connecting portion 11R of the mesh material 11.
  • the thickness of the filler 18 is thinner than that of the processed portion 15.
  • the filler 18 holds each processed portion 15 on the front side of the filler 18 by surrounding a part of the side surface and the entire back surface of each processed portion 15 .
  • the filler 18, like the binding material 13, is made of resin such as phenol resin or epoxy resin, metal, or alloy.
  • the filler 18 may be mixed with sharpening grains such as alumina (not shown) that sharpen the abrasive grains 14 .
  • the filler 18 gives the entire processing sheet 10 appropriate hardness.
  • the processing sheet 10 is used for processing grindstones 210, 310, 410, 510, 610 and a core drill 710, which will be described later.
  • the processing sheet 10 includes a processing section 15 for processing a processing object (work), and a sheet-like mesh material 11 having a bent section 12.
  • a bent portion 12 of the mesh material 11 is embedded in the processed portion 15 .
  • the contact area between the processed portion 15 and the mesh material 11 is increased by the bent portion 12, and the processed portion 15 can be more firmly fixed to the mesh material 11.
  • the thickness of the processed portion 15 can be easily adjusted by the bent portion 12.
  • the processing sheet 10 has high flexibility and can be easily bent to match the shape of the workpiece.
  • the bent portion 12 has a wave shape.
  • the inner portion 15i of the processed portion 15 is filled in the recess of the bent portion 12. According to this configuration, the processed portion 15 can be more firmly fixed to the mesh material 11.
  • the mesh material 11 is made of plastically deformable metal (for example, stainless steel).
  • the processing section 15 includes a metal (for example, nickel) binding material 13 that adheres to the mesh material 11, and a plurality of abrasive grains 14 that are located within the binding material 13 and process the workpiece. According to this configuration, the processed portion 15 can be more firmly fixed to the mesh material 11.
  • the processing grindstone 210 has a disk shape and cuts a workpiece etc. on the outer peripheral side.
  • the processing grindstone 210 is, for example, a dicing blade.
  • the processing grindstone 210 includes a plurality of processing parts 215 made of the same material as the processing part 15 of the first embodiment, and a filler 218 made of the same material as the filler 18 of the modified example of the first embodiment. , and a mesh material 211 made of the same material as the mesh material 11 of the first embodiment.
  • the plurality of processing parts 215 are located on the outer peripheral side of the processing grindstone 210, and are arranged at positions separated from each other in the rotation direction C of the processing grindstone 210.
  • the plurality of processed parts 215 are arranged at equal angular intervals.
  • Each processing portion 215 has a long shape in the radial direction R of the processing grindstone 210, and has a rectangular shape in this example.
  • the processing section 215 includes a plurality of abrasive grains 14 and a bonding material 13, similar to the first embodiment.
  • the mesh material 211 is formed into a circular sheet shape as a core material of the processing grindstone 210.
  • the mesh material 211 includes a plurality of bent portions 212 and a plurality of connecting portions 211R that connect the plurality of bent portions 212.
  • the plurality of bent portions 212 are located on the outer peripheral side of the mesh material 211 and are arranged at positions separated from each other in the rotation direction C of the processing grindstone 210.
  • the bent portion 212 is formed as a triangular wave-like wrinkle along the rotation direction C.
  • the bending portion 212 has a plurality of bending lines 212a passing through the vertices of this triangular wave. Each bent portion 212 is embedded in each processed portion 215.
  • the binding material 13 of the processed portion 215 has penetrated into the holes inside the mesh material 211 .
  • the amplitude of the waveform of each bent portion 212 is approximately the same as the thickness of the processed portion 215, and by adjusting the amplitude of this waveform, the thickness of the processed portion 215 can be adjusted.
  • a connecting portion 211R located between the plurality of processed portions 215 is embedded in the filler 218, and is formed on both sides of the connecting portion 211R in the thickness direction and in a hole inside the connecting portion 211R.
  • the filler 218 is formed thinner than the processed portion 215.
  • the plurality of bent portions 212 are arranged at intervals on the mesh material 211, each having a wave shape, and each bent portion 212 is embedded in the processed portion 215. According to this configuration, the contact area between the processed portion 215 and the mesh material 211 is increased by the bent portion 212, and the processed portion 215 can be more firmly fixed to the mesh material 211.
  • the processing grindstone 210 includes a processing sheet including a mesh material 211 having a plurality of folded portions 212, a processing portion 215, and a filler 218.
  • the plurality of processing parts 215 are located on the outer circumferential side of the disk-shaped processing grindstone 210, and are arranged at positions separated from each other in the rotation direction C of the processing grindstone 210. According to this configuration, since the processing portion 215 periodically contacts the workpiece in the rotation direction C of the processing grindstone 210 during processing, the sharpness of the processing grindstone 210 is improved. Further, even when cutting a metal workpiece, the processing grindstone 210 is difficult to generate sparks because the filler 218 other than the processing portion 215 periodically contacts the workpiece.
  • the processed portion 215 is formed only on the outer peripheral side of the processing grindstone 210, the area in which the processed portion 215 is formed can be minimized. Thereby, the amount of abrasive grains contained in the processing section 215 can be reduced. Further, by making the filler 218 of a material softer than the processing portion 215, for example, resin, it is possible to soften the contact of the processing grindstone 210 with the workpiece. Thereby, vibration of the processing grindstone 210 during processing can be suppressed. Further, since the processed portion 215 is formed using the fibrous mesh material 211 as a base material, a rigid base material is not required. Therefore, the processing grindstone 210 can be made thinner, and the sharpness of the processing grindstone 210 is improved.
  • the processing grindstone 310 is a cylindrical flap grindstone that performs processing on its outer peripheral surface.
  • the processing grindstone 310 includes a plurality of processing sheets 301 and a buffer material 319 formed between the plurality of processing sheets 301.
  • the plurality of processing sheets 301 extend in the radial direction R of the processing grindstone 310, and are arranged with gaps in the rotation direction C of the processing grindstone 310.
  • the processing sheet 301 includes a plurality of processing parts 315 made of the same material as the processing part 15 of the first embodiment, and a plurality of processing parts 315 made of the same material as the mesh material 11 of the first embodiment. It includes a mesh material 311 and a filler 318 made of the same material as the filler 18 of the first embodiment.
  • the processing sheet 301 has a rectangular plate shape.
  • the plurality of processing portions 315 are each formed to extend along the radial direction R and reach the outer end of the processing sheet 301 in the radial direction R.
  • the plurality of processing parts 315 are arranged with gaps in a direction along the rotation axis O of the processing grindstone 310 that is perpendicular to the radial direction R.
  • the fillers 318 are formed between the plurality of processed parts 315 in the mesh material 311, extend along the radial direction R, and are arranged alternately with the processed parts 315 in the direction along the rotation axis O.
  • the mesh material 311 has a rectangular wave shape extending along the rotation axis O.
  • the mesh material 311 includes a plurality of bent portions 312 corresponding to the convex portions of the rectangular wave, and a connecting portion 311R that connects the plurality of bent portions 312. Each bent portion 312 is embedded in a processed portion 315, respectively.
  • the bending portion 312 has four bending lines 312a extending along the radial direction R, and all of the four bending lines 312a are embedded in one processed portion 315.
  • the connecting portion 311R is embedded in the filler 318.
  • the processed portion 315 and the filler 318 are formed into a flat plate shape with substantially the same thickness.
  • the plurality of processing sheets 301 include processing sheets 301a and 301b.
  • the two processing sheets 301a and 301b are arranged alternately in the rotation direction C.
  • the plurality of processing parts 315 of the two processing sheets 301a and 301b adjacent in the rotation direction C are provided at positions shifted in the direction along the rotation axis O of the processing grindstone 310 so as to reduce the overlapping area in the rotation direction C. It is being
  • the plurality of processing parts 315 of the processing sheet 301a are located opposite to the plurality of fillers 318 of the processing sheet 301b in the rotation direction C, and the plurality of processing parts 315 of the processing sheet 301b are located opposite to the plurality of filling materials 318 of the processing sheet 301b.
  • the filling material 318 is located opposite to the rotational direction C.
  • the phase of the arrangement cycle of the plurality of processing parts 315 of the processing sheet 301a and the phase of the arrangement cycle of the plurality of processing parts 315 of the processing sheet 301b are at a predetermined angle in the direction along the rotation axis O of the processing grindstone 310, For example, they are arranged so as to be shifted by 180°.
  • each processed portion 315 is formed over the entire area of the processing sheet 301 in the radial direction R, but the invention is not limited to this.
  • a portion far from the substrate may be omitted, and the filler 318 may be formed in this omitted portion. According to this configuration, the formation range of the processed portion 315 can be minimized.
  • the cushioning material 319 may be omitted. Further, any one to three of the four folding lines 312a may be embedded in one processed portion 315.
  • the processing grindstone 310 includes a plurality of processing sheets 301a and 301b arranged in the rotation direction C of the processing grindstone 310.
  • the processing portions 315 of the two processing sheets 301a and 301b adjacent in the rotation direction C are provided at positions shifted from each other in the direction along the rotation axis O of the processing grindstone 310.
  • the contact area between the processed portion 315 and the mesh material 311 is increased by the bent portion 312, and the processed portion 315 can be more firmly fixed to the mesh material 311.
  • the processing pressure of the workpiece by the processing section 315 is increased, and the sharpness of the processing grindstone 310 can be improved. Furthermore, by forming the filler 318 from a material softer than the processing portion 315, such as resin, the contact of the processing grindstone 310 with the workpiece can be made softer, and it can be elastically deformed to follow the uneven shape of the workpiece. It becomes possible. Further, vibration of the processing grindstone 310 during processing can be suppressed.
  • the processing grindstone 410 of this embodiment is a bottom processing grindstone that performs processing on the bottom surface.
  • the processing grindstone 410 includes a plurality of processing sheets 401 and a cushioning material 419 formed between the plurality of processing sheets 401, similarly to the processing grindstone 310 of the third embodiment.
  • the processing sheet 401 includes a mesh material 411 having a plurality of folded portions 412 and a plurality of connection portions 411R, similar to the processing sheet 301 of the third embodiment. It includes a processing section 415 and a filler 418. The processed portions 415 and the fillers 418 are arranged alternately in the radial direction R.
  • the plurality of processing sheets 401 include processing sheets 401a and 401b. The two processing sheets 401a and 401b are arranged alternately in the rotation direction C.
  • the plurality of processing portions 415 of the two processing sheets 401a and 401b adjacent in the rotational direction C are provided at positions shifted in the radial direction R so as not to overlap in the rotational direction C.
  • the plurality of processing parts 415 of the processing sheet 401a are located opposite to the plurality of fillers 418 of the processing sheet 401b in the rotation direction C, and the plurality of processing parts 415 of the processing sheet 401b are located opposite to the plurality of filling materials 418 of the processing sheet 401b.
  • the filler 418 is located opposite to the rotation direction C.
  • the arrangement is such that the phase of the arrangement period of the plurality of processed parts 415 on the processing sheet 401a and the phase of the arrangement period of the plurality of processing parts 415 on the processing sheet 401b are shifted by a predetermined angle, for example, 180 degrees, in the radial direction R. be done.
  • the processing portion 415 may be formed over the entire area of the processing sheet 401 in the direction along the rotation axis O, or may be formed only near the bottom surface which is the processing surface of the processing grindstone 410 in the direction along the rotation axis O. may be done.
  • the processing whetstone 410 of this embodiment was equipped with the buffer material 419, the present invention is not limited to this, and the buffer material 419 may be omitted.
  • a plurality of processing sheets 401 may be arranged so as to overlap along the rotation direction C.
  • the processing grindstone 510 may be configured as a tapered multi-blade disc.
  • the processing grindstone 510 performs processing on the bottom surface similarly to the processing grindstone 410.
  • the processing grindstone 510 includes a disk-shaped base material 517 and a plurality of processing sheets 501 arranged in the rotation direction C so that some of the sheets overlap each other on the front surface of the base material 517. As shown in FIG.
  • the processing sheet 501 includes a mesh material 511, a processing section 515, and a filler 518, similarly to the processing sheet 401 described above.
  • the processing sheet 501 has a rectangular plate shape long in the radial direction R, and is inclined with respect to the front surface of the base material 517.
  • the mesh material 511 is bent into a rectangular wave shape.
  • the mesh material 511 includes a plurality of bent portions 512 corresponding to the convex portions of the rectangular wave, and a connecting portion 511R that connects the plurality of bent portions 512.
  • Each bent portion 512 is embedded in a processed portion 515, respectively.
  • the connecting portion 511R is embedded in the filler 518.
  • the plurality of processed parts 515 of the processed sheet 501 are formed at positions separated from each other in the radial direction R.
  • the plurality of processing sheets 501 include processing sheets 501a and 501b.
  • the two processing sheets 501a and 501b are arranged alternately in the rotation direction C.
  • a plurality of processing portions 515 of two processing sheets 501a and 501b adjacent in the rotational direction C are provided at positions shifted in the radial direction R so as not to overlap in the rotational direction C.
  • the plurality of processing parts 515 of the processing sheet 501a are located opposite to the plurality of fillers 518 of the processing sheet 501b in the rotation direction C, and the plurality of processing parts 515 of the processing sheet 501b are located opposite to the plurality of filling materials 518 of the processing sheet 501b.
  • the filling material 518 is located opposite to the rotational direction C.
  • the arrangement is such that the phase of the arrangement period of the plurality of processing parts 515 on the processing sheet 501a and the phase of the arrangement period of the plurality of processing parts 515 on the processing sheet 501b are shifted by a predetermined angle, for example, 180 degrees, in the radial direction R. be done.
  • the processing grindstones 410, 510 include a plurality of processing sheets 401a, 401b, 501a, 501b arranged in the rotation direction C of the processing grindstones 410, 510. Processing portions 415, 515 of two processing sheets 401a, 401b, 501a, 501b adjacent in the rotation direction C are provided at positions shifted from each other in the radial direction R of the processing grindstones 410, 510.
  • the contact area between the processed parts 415, 515 and the mesh material 411, 511 is increased by the bent parts 412, 512, and the processed parts 415, 515 are more firmly fixed to the mesh material 411, 511. I can do it.
  • the processing pressure of the workpiece by the processing portions 415, 515 increases, and the sharpness of the processing grindstones 410, 510 can be improved.
  • the fillers 418, 518 from a material softer than the processed parts 415, 515, such as resin, the contact of the processing grindstones 410, 510 to the workpiece can be made softer, and it can follow the uneven shape of the workpiece. It becomes elastically deformable. Furthermore, vibration of the processing grindstones 410, 510 during processing can be suppressed.
  • the processing grindstone 610 cuts the workpiece at its outer peripheral surface. This work also includes grass.
  • the processing grindstone 610 includes a plurality of processing column members 630 and a pedestal 617 to which the plurality of processing column members 630 are fixed.
  • the pedestal 617 has a disk shape.
  • the processing column member 630 is fixed to the outer peripheral surface of the pedestal 617.
  • the processing column member 630 includes a plurality of processing parts 615 made of the same material as the processing part 215 of the second embodiment, and a plurality of processing parts 615 made of the same material as the mesh material 211 of the second embodiment. and a filler 618 made of the same material as the filler 218 of the second embodiment.
  • the processing column member 630 has a bent plate shape in which a plurality of flat plates are connected.
  • the mesh material 611 that is the core material of the processing column member 630 has a hat shape.
  • Each processing portion 615 is located at a portion other than the corner portion of the processing column member 630.
  • the plurality of processing parts 615 are provided at positions separated from each other in the longitudinal direction of the processing column member 630.
  • the processing portion 615 is formed over the entire width of the processing column member 630 in the lateral direction. Note that the processing portion 615 is not limited to this example, and the processing portion 615 may be formed only on the side closer to the processing object (cutting object) in the width direction of the processing column member 630.
  • the mesh material 611 has a plurality of bent portions 612.
  • the plurality of bent portions 612 are arranged at positions apart in the rotation direction C of the processing grindstone 610.
  • the bent portion 612 is formed as a triangular wave-like wrinkle along the rotation direction C.
  • Each bent portion 612 is embedded in each processed portion 615. By adjusting the amplitude of the waveform of each bent portion 612, the thickness of the processed portion 615 can be adjusted.
  • the cylindrical portion 635 is formed by combining the two processing column members 630 with the opening sides of the two processing column members 630 facing each other. For example, both ends of the two processing column members 630 in the longitudinal direction are bonded together. A convex portion (not shown) formed on the outer peripheral surface of the pedestal 617 is fitted into the cylindrical portion 635 . Further, the inside of the cylindrical portion 635 may be formed so that coolant liquid or chips can pass therethrough.
  • the cylindrical portion 635 has a hexagonal cylindrical shape in this example, it is not limited thereto, and may have other polygonal cylindrical shapes or cylindrical shapes.
  • the shape of the processing column member 630 in this embodiment can be changed as appropriate.
  • the processing column member 630 may have a V-shape, L-shape, or F-shape, and each processing portion 615 may be provided at a non-corner portion.
  • the processing column member may be singly cylindrical.
  • the processing column member 630 may be used as a grindstone for processing on the bottom surface. In this case, the processing column member 630 may be provided in a direction intersecting the bottom surface of the grindstone, for example, in a direction perpendicular to the bottom surface of the grindstone. A plurality of cylindrical portions may be arranged in a row on the bottom surface of the grindstone.
  • the processing column member 630 may be used as a grindstone for processing the outer peripheral surface.
  • the processing column member 630 may be provided in a direction intersecting the outer peripheral surface of the grindstone, for example, in a direction perpendicular to the outer peripheral surface of the grindstone.
  • a plurality of cylindrical portions may be arranged so as to be lined up on the outer peripheral surface of the grindstone.
  • the processing column member 630 includes a processing sheet including a processing section 615, a mesh material 611, and a filler 618.
  • the processing column member 630 has a bent plate shape that stands upright in a direction intersecting the processing surface.
  • Each processing portion 615 is provided at a portion of the processing column member 630 other than the corner portion. According to this configuration, the contact area between the processed portion 615 and the mesh material 611 is increased by the bent portion 612, and the processed portion 615 can be more firmly fixed to the mesh material 611.
  • the processing portion 615 is provided at a non-corner portion of the processing column member 630, thereby stabilizing the processing by the processing column member 630. Furthermore, by using the filler 618 as a material softer than the processing portion 615, such as resin, it is possible to soften the contact of the processing column member 630 with the workpiece. In addition, since the filler 618 that is softer than the processed portion 615 is placed at the corner of the processing column member 630, the processing column member 630 can be easily deformed around the corner of the processing column member 630. Furthermore, each of the processed parts 615 is formed to extend in a direction intersecting the processed surface, and is provided at positions separated from each other in the direction along the processed surface. According to this configuration, the machining pressure of the machining section 615 against the workpiece is increased, and the sharpness of the machining column member 630 can be improved.
  • the filler 618 as a material softer than the processing portion 615, such as resin, it is possible to soften the contact of the processing column member
  • FIGS. 13 and 14 A processing sheet and a core drill according to a sixth embodiment of the present invention will be described with reference to the drawings.
  • the core drill 710 which is a processing grindstone, forms a hole in the workpiece by contacting the workpiece made of concrete or the like while being rotated about the rotation axis O.
  • the core drill 710 has a plurality of processing parts 715 made of the same material as the processing part 15 of the first embodiment, and a filler 718 made of the same material as the filler 18 of the first embodiment, as shown in FIG.
  • a mesh material 711 made of the same material as the mesh material 11 of the first embodiment is provided.
  • the filler 718 is formed into a cylindrical shape.
  • a cylindrical mesh material 711 is embedded in the filler 718 as a core material.
  • the filler 718 holds the plurality of processed parts 715.
  • the mesh material 711 is bent into a rectangular (trapezoidal in this example) wave shape along the rotation direction C.
  • the mesh material 711 includes a plurality of bent portions 712 and a plurality of connecting portions 711R that connect the plurality of bent portions 712.
  • the bent portions 712 and the connecting portions 711R are arranged alternately in the rotation direction C.
  • the bent portion 712 is located corresponding to a convex portion of the mesh material 711 facing outward in the radial direction R.
  • the connecting portion 711R is curved along the rotation direction C.
  • Each bent portion 712 is embedded in the processed portion 15, respectively.
  • the bending portion 712 has four bending lines 712a extending along the rotation axis O, and all of the four bending lines 712a are embedded in one processing portion 715.
  • the thickness of the processed portion 15 in the radial direction R is formed to be thicker than the thickness of the filler 718 in the radial direction R.
  • the filler 718 is located so as to be in contact with the side surface of the processing portion 15 on the rotation axis O side (lower side in FIG. 15).
  • the bent portion 712 may be formed in a triangular wave shape similarly to the above-described bent portions 212 and 612 (see FIGS. 5 and 11).
  • the filler 718 is made by, for example, brazing the mesh material 711 with silver solder or the like, thereby attaching the brazing material to the mesh material 711 and holding the processed portion 715 by solidifying the brazing material.
  • the molten brazing material can be held within the holes of the mesh material 711. Therefore, the mesh material 711 prevents the melted brazing material from flowing down, making it easier to manufacture the core drill 710.
  • the processed parts 715 are arranged along the rotation direction C.
  • the processing portion 715 is located on the side of the core drill 710 closer to the workpiece, and has a shape elongated in the direction along the rotation axis O, for example, a rectangular shape.
  • the core drill 710 includes a processing sheet, and the processing sheet includes a mesh material 711 having a plurality of folded portions 712, a plurality of processing portions 715, and a filler material 718.
  • the mesh material 711 is formed into a cylindrical shape.
  • the plurality of processed parts 715 are arranged along the rotation direction C, which is the circumferential direction of the mesh material 711. According to this configuration, the contact area between the processed portion 715 and the mesh material 711 is increased by the bent portion 712, and the processed portion 715 can be more firmly fixed to the mesh material 711.
  • the core drill 710 can be formed thinner than a core drill to which a conventional tipped saw is attached, and the processing pressure on the workpiece can be increased, so that the sharpness of the core drill 710 can be improved. Further, noise, dust, and vibration generated when processing a workpiece with the core drill 710 can be reduced.
  • the present disclosure is not limited to the above embodiments and drawings. It is possible to make changes (including deletion of components) as appropriate without changing the gist of the present disclosure. An example of the modification will be described below. (Modified example) For example, although the processing portion included the plurality of abrasive grains 14, the plurality of abrasive grains 14 may be omitted and it may be formed only from metal.
  • the mesh material 811 of the processing sheet, grindstone, or core drill may have a sinusoidal shape.
  • the bent portion 812 of the mesh material 811 is the periphery of the valley of the sinusoidal mesh material 811.
  • Each bent portion 812 is embedded in a substantially semi-cylindrical processed portion 815. Note that in this example, one processed portion 815 is provided for each period of the sinusoidal mesh material 811, but the invention is not limited to this, and one processed portion 815 may be provided for each plurality of periods (for example, one processed portion 815 for every two periods). may be provided.
  • the processed portion 815 is not limited to the periphery of the valley portion of the sinusoidal mesh material 811, but may be provided around the peak portion.
  • a part (e.g., the upper surface part) of the rectangular wave-like bent part 912 is formed in a wave shape (e.g., triangular wave shape). You can leave it there.
  • the side surface of the bent portion 912 may be formed in a wave shape (for example, a triangular wave shape).
  • bent portions 12, 212, 312, 512, 612, 712, 812, and 912 may be applied to other bent portions other than this one.
  • bent portions having mutually different shapes may be formed in one mesh material 11, 211, 311, 511, 611, 711, 811.
  • the mesh material 11, 211, 311, 511, 611, 711, 811 is one layer, but may be a plurality of layers stacked on top of each other.
  • the connecting portions 11R, 211R, 311R, 411R, 511R, 611R, and 711R in each of the above embodiments may have a plurality of wavy or other bent portions, similar to the processed portions.
  • the fillers 18, 218, 318, 418, 518, 618, 718 are more firmly fixed to the connecting portions 11R, 211R, 311R, 411R, 511R, 611R, 711R.
  • a portion of the bent portion may be embedded in the processed portion, and the remaining portion of the bent portion may be located outside the processed portion.
  • the processing portion 615 may be provided at a corner of the processing column member 630. Further, in the fifth embodiment, the processing column member 630 may have a flat plate shape.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

La présente feuille de traitement (10) comprend des parties de traitement (15) pour traiter une pièce, et un élément de maille en forme de feuille (11) ayant des parties de courbure (12). Les parties de courbure (12) de l'élément de maille (11) sont incorporées dans les parties de traitement (15).
PCT/JP2023/001195 2022-03-10 2023-01-17 Feuille de traitement, meule de traitement, élément de colonne de traitement et carottier WO2023171135A1 (fr)

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JP2022036869A JP7356185B2 (ja) 2022-03-10 2022-03-10 加工用砥石及びコアドリル
JP2022-036869 2022-03-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188675A (ja) * 1986-02-10 1987-08-18 Kouyoushiya:Kk 超砥粒切断研削研磨工具要素
US6145410A (en) * 1995-12-06 2000-11-14 Ashkenazi; Brian I. Bandsaw blade
WO2008063001A1 (fr) * 2006-11-22 2008-05-29 Hyo Young Kim Outil diamant fabriqué par combinaison d'un réseau maillé et d'un matériau en résine synthétique
US20110104999A1 (en) * 2009-11-02 2011-05-05 Simon Palushaj Abrasive pad

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188675A (ja) * 1986-02-10 1987-08-18 Kouyoushiya:Kk 超砥粒切断研削研磨工具要素
US6145410A (en) * 1995-12-06 2000-11-14 Ashkenazi; Brian I. Bandsaw blade
WO2008063001A1 (fr) * 2006-11-22 2008-05-29 Hyo Young Kim Outil diamant fabriqué par combinaison d'un réseau maillé et d'un matériau en résine synthétique
US20110104999A1 (en) * 2009-11-02 2011-05-05 Simon Palushaj Abrasive pad

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JP7356185B2 (ja) 2023-10-04

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