WO2000066326A1 - Outil au diamant pourvu d'un element de montage - Google Patents

Outil au diamant pourvu d'un element de montage Download PDF

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Publication number
WO2000066326A1
WO2000066326A1 PCT/JP2000/002824 JP0002824W WO0066326A1 WO 2000066326 A1 WO2000066326 A1 WO 2000066326A1 JP 0002824 W JP0002824 W JP 0002824W WO 0066326 A1 WO0066326 A1 WO 0066326A1
Authority
WO
WIPO (PCT)
Prior art keywords
diamond
mounting member
tool
circular substrate
center
Prior art date
Application number
PCT/JP2000/002824
Other languages
English (en)
Japanese (ja)
Inventor
Koichi Suzuki
Original Assignee
Sankyo Diamond Industrial 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 Sankyo Diamond Industrial Co., Ltd. filed Critical Sankyo Diamond Industrial Co., Ltd.
Publication of WO2000066326A1 publication Critical patent/WO2000066326A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/005—Vibration-damping
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/32—Devices for securing circular saw blades to the saw spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121—Circular saw blades

Definitions

  • the present invention relates to a diamond tool having an attachment member, for example, a diamond cup wheel that can be used for grinding stones and building materials, a diamond blade and a diamond blade that can be used for cutting stones and building materials, and the like.
  • the present invention relates to a diamond tool provided with a mounting member such as an offset diamond blade (hereinafter, sometimes simply referred to as a diamond blade) suitable for cutting and hanging work when cutting concrete or stone.
  • a mounting member such as an offset diamond blade (hereinafter, sometimes simply referred to as a diamond blade) suitable for cutting and hanging work when cutting concrete or stone.
  • diamond tools such as diamond cup wheels and diamond wheels are used for grinding and cutting stones and building materials.
  • the diamond cup wheel has a cup-shaped cross section formed by drawing a metal material by pressing, and the peripheral surface is machined with a lathe.
  • the segment chips 102 containing abrasive grains are joined at predetermined intervals by brazing or the like.
  • Such a diamond cup wheel is mounted on a rotating shaft of a power tool and rotated at a high speed, and an operator holds the power tool by hand to grind a surface of a stone or a building material by a dry or wet method. You.
  • the power tool is directly held with the hand, there are inconveniences such as severe vibration felt by the hand, numbness of the hand, and loud noise, and a diamond cup wheel with low noise and vibration is desired. I have.
  • a technique has been proposed in which a base metal of a wheel is formed by bonding a plurality of metals together, or a gap is formed between a plurality of metals constituting the base metal.
  • a sandwich structure with an intermediate layer is used to secure a gap between the multiple metals that make up the base metal
  • a joining process that joins the steel sheet and the intermediate layer with an adhesive or spot welding is used.
  • this flange member is not a dedicated part for individual diamond cup wheels, a certain tolerance (approximately 0.1 mm) is provided in consideration of versatility, and so-called center run-out occurs due to this. However, there is a problem that the blade vibrates.
  • the diamond blade has a configuration in which diamond abrasive grains are attached to a peripheral portion of a circular substrate by means such as a metal matrix and a plating to form a grindstone portion, and a mounting hole is provided at a central portion of the circular substrate.
  • the diamond blade passes through the rotating shaft 201 of the power tool through the inner flange 202 attached to the power tool, and then through the mounting hole of the diamond blade 203.
  • the outer blade 204 attached to the power tool is attached, and the diamond blade 203 is sandwiched between the inner flange 202 and the outer flange 204 to be mounted on the power tool.
  • the tool is attached to the tool using the flange member attached to the tool, and does not precisely match the dimensions of the individual diamond blades. Since it was recognized, slight center run-out occurred between the diamond blade and the outer flange member. For this reason, the grinding action surface of the diamond blade may not smoothly contact the processing location, and the diamond blade may hit the processing location. When such a so-called slap phenomenon occurs, the life of the diamond blade is shortened, the operator receives uncomfortable vibrations, and the work material cannot be cut accurately.
  • an offset type diamond blade in which a concave portion is formed in a region including the center of a circular substrate and a center hole is formed in the center of the substrate in the concave portion.
  • an offset type diamond blade has an outer flange 304 attached to a power tool disposed in a concave portion 305 of a diamond blade 303a, and a rotating shaft 3 of a power tool through an inner flange 302a. 0 Attached to 1.
  • the concave portion 304 is formed in the center, and since the outer flange 304 is disposed in the concave portion 303, the substrate surface on the side in contact with the work material is formed. Can be made flat.
  • the mounting to the jig is performed using the flange member attached to the tool, and when the flange member is not prepared with high accuracy, especially when the board fitting portion of the inner flange 302a is used.
  • the flange member is not prepared with high accuracy, especially when the board fitting portion of the inner flange 302a is used.
  • the grinding action surface of the diamond blade does not smoothly contact the processing location, and the diamond blade may hit the processing location.
  • tack phenomenon occurs, there is a disadvantage that the life of the diamond blade is shortened, uncomfortable vibration is given to the operator, and the work material cannot be cut with high accuracy. This slap phenomenon also occurs in the diamond blade shown in FIG. 18 described above.
  • the flange member attached to the tool is not a dedicated part for individual diamond blades, a slight tolerance (about 0.1 mm) is provided in consideration of general versatility. This caused the problem that the cutting edge vibrated.
  • it is required to make the concave portion 305 of the diamond blade deep in order to prevent the tip of the electric tool rotating shaft 301 or the outer flange 304 from protruding from the substrate surface 303b of the diamond blade 303a.
  • the rigidity required for the substrate such as using a soft material for the substrate.
  • the nut-shaped flange member 306 has a flange portion 306a provided with a substrate fitting portion 306g, and a tool-side flange portion 306b formed continuously with the flange portion 306a, and the flange portion 306a has a circular shape.
  • a plurality of screw holes 303c for joining the substrate 303a and the flange member 306 are formed.
  • the flange portion 306a and the tool-side flange portion 306b are provided with screw holes 306e for attachment to the tool.
  • a center hole 303c that engages with the substrate fitting portion 306g is formed in the circular substrate 303a of the diamond blade of FIG. 21 to which the flange member 306 is attached.
  • the circular substrate 303a is formed to have a thickness such that the highest portion 306d of the end surface of the flange portion 306a is flush with the distal end surface 303b of the circular substrate 303a. Further, the circular substrate 303a is provided with a screw hole (a countersunk screw surface and a hole) 303d that can be engaged with the screw hole 306c.
  • the substrate fitting portion 306g is inserted into the center hole 303c of the circular substrate 303a, and The screw L 306c of the part 306a is combined with the screw 303d of the circular substrate 303a, and the countersunk screw 306f is screwed.
  • the flange member 306 is connected to the diamond blade, and the diamond blade is attached to the power tool via the flange portion 306.
  • the entire height of the flange 306 is determined so that the tip of the rotary shaft does not project from the end surface of the flange member 306 when screwed with the rotary shaft of the electric tool.
  • an offset type diamond blade to secure a sufficient cutting depth.
  • the outer diameter of the diamond blade recess 305 is reduced, and the actual area of the recess is reduced, so that the cutting depth of the diamond blade into the work material is reduced. It is possible to make it bigger.
  • the recess of the offset type diamond blade is made shallow for the purpose of securing the depth of cut, the volume of the recess for accommodating the outer flange is significantly reduced, making it difficult to secure an effective thread of the outer flange, or The problem remains that the minimum necessary distance from the tool cannot be secured. Therefore, it is desirable to form a deep recess with a small diameter.
  • the outer flange In addition, in order to remove the diamond blade from the power tool when exchanging the diamond blade when cutting different work materials or when cutting different parts in any diamond tool, the outer flange must be removed from the rotating shaft. Had to be removed. As described above, every time the diamond blade is replaced, it is necessary to remove the outer flange, which is troublesome, and the flange member is easily lost.
  • An object of the present invention is to provide a diamond cup wheel with reduced noise and vibration, which can be easily attached to and detached from the tool side, is easy to use, and can be manufactured at a low cost. Providing wheels.
  • Another object of the present invention is to provide a diamond blade that can be easily attached to and detached from the tool side, can maintain high cutting accuracy, can be manufactured with little vibration, has a long life, and can be manufactured at low cost.
  • Still another object of the present invention is to prevent a rattling phenomenon or the like by the action of a mounting member integrally formed on a circular substrate without using a nut-like flange member of an outer flange attached to a tool and a countersunk screw fixing mechanism,
  • An object of the present invention is to provide an offset diamond blade having a long tool life.
  • Another object of the present invention is to ensure a sufficient notch depth
  • An object of the present invention is to provide an offset diamond blade.
  • Still another object of the present invention is to provide an offset diamond blade that can be easily attached to and detached from the tool side, can maintain high cutting accuracy, and can be manufactured at low cost. Disclosure of the invention
  • a first feature of the diamond tool provided with the mounting member of the present invention is that a segment tip, a base metal having a cup-shaped cross section to which the segment chip is mounted, and an elastic material on the back surface of the base metal
  • a cover that covers the elastic material with an intervening member
  • a mounting member that connects the base and the cover, wherein the mounting member connects the base and the cover with a center hole of the base and the cover.
  • a mounting portion for the tool is provided.
  • the diamond cup wheel according to the present invention is composed of the base metal provided with the segment chip, the elastic material interposed between the base metal and the cover covering the elastic material. Since the mounting portion is provided, noise and vibration during grinding can be attenuated by the elastic material. In addition, since the flange member, which is an accessory part of the power tool, is not required, delicate run-out due to the tolerance of the flange member can be prevented, and unpleasant vibrations during cutting work can be prevented, and a noise reduction effect can be obtained. It is possible to maintain a good working environment.
  • the elastic material is more efficiently attached to the base metal using an adhesive or the like. And it can be assembled at low cost. Further, by providing the cover, the elastic material can be protected.
  • the elastic material is arranged between the base metal and the cover, when the base metal and the cover are caulked by the mounting member, the elastic material has a built-in load at the time of caulking.
  • the base metal and the cover are securely held by the elasticity of the elastic material, in addition to the staking mechanism of the mounting member, and the base metal and the cover are securely integrated, and the diamond cup wheel is prevented from idling. Is prevented.
  • the elastic material for example, foamed rubber is used.
  • the mounting member has a mounting portion on the tool side. That is, since the mounting screw hole on the tool side is provided at the center of the mounting member, the mounting screw hole is screwed to the rotating shaft of the power tool to mount the diamond cup wheel on the power tool. Can be.
  • the diamond cup wheel of this example is provided with the mounting member having the mounting portion to the tool side, so that the diamond cup wheel can be easily exchanged according to the work situation. It is. And since the flange member attached to the tool is not used as before, the flange member is not lost during transportation or work, and the vibration caused by the tolerance of the flange member is prevented beforehand. And it is possible to work efficiently.
  • the mounting member includes a flange portion located on the base metal side and a caulking portion located on the side of the cover.
  • the caulking portion is caulked on the cover side, so that the flange portion is caulked.
  • the base metal, the elastic material, and the cover are fixedly attached to the portion. In this way, by fixing with force, there is no need to use a nut on the cover side, and the number of parts required for attachment to and removal from the power tool can be reduced.
  • the flange portion is located closer to the base metal than the segment chip arrangement position.
  • An engagement hole is formed in the flange to engage with a jig for rotating the diamond cup wheel when attaching or detaching to the tool side. Therefore, it is possible to rotate the diamond wheel simply by engaging a pin of a jig, for example, a second force wrench, with this engagement hole. It can be easily attached to and detached from tools, which is preferable.
  • a second feature of the diamond tool provided with the mounting member of the present invention is a diamond blade having a grindstone portion mainly composed of diamond abrasive grains attached to an outer peripheral edge of a circular substrate.
  • a mounting member for the tool side is provided in the center hole, and the mounting member includes a flange portion and a caulking portion, and the flange portion has a mounting screw hole for the tool side in the center.
  • the circular substrate is sandwiched between the flange portion and the caulking portion.
  • This diamond blade has a mounting member on the tool side, and the mounting member is configured so that the circular substrate is sandwiched between the flange portion and the caulking portion. At the center of the flange, there is a mounting screw hole on the tool side. By screwing this mounting screw hole to the rotating shaft of the power tool, the diamond blade can be mounted on the power tool. Can be.
  • the diamond blade which is the second feature of the present invention, is different from the conventional one in that the diamond blade is not attached to the tool by using the outer flange member attached to the tool, but the tool is previously inserted into the center hole of the circular substrate.
  • the mounting member is provided on the side, and the mounting screw hole is formed in the flange part of the mounting member in accordance with the rotating shaft. In addition, it is possible to prevent the slap phenomenon and to perform comfortable cutting work accurately.
  • the mounting member is integrally attached to the circular substrate, when the diamond blade is replaced, the mounting member and the diamond blade can be removed at the same time, and the replacement of the diamond blade can be easily performed.
  • the outer flange member attached to the tool is not used, so that the vibration caused by the flange member can be prevented beforehand. In particular, the work can be performed efficiently without losing the flange member during transportation or work.
  • the flange portion has an engagement hole for engaging with a jig for rotating the diamond blade when attached to the tool side. Therefore, the diamond wheel can be rotated simply by engaging the pin of a jig, for example, a second-wrench wrench, with this engagement hole, so that the diamond wheel can be easily attached and detached from the tool. It is possible and suitable.
  • the diamond blade can be prevented from spinning. That is, when a resilient washer such as a spring washer or a rubber washer is used as the washer, when the circular substrate is caulked by the mounting member, the washer will incorporate a load at the time of caulking.
  • the mounting member is securely held by the resilient force of the washer in addition to the caulking mechanism, and the circular substrate and the mounting member are reliably integrated, thereby preventing the diamond blade from spinning.
  • a cylindrical washer having a bottom surface having a hole in the center and a peripheral wall standing upright so as to surround the bottom surface may be used.
  • a third feature of the diamond tool having the mounting member of the present invention is that a grindstone mainly composed of diamond abrasive grains is attached to an outer peripheral edge of a circular substrate,
  • the center hole of the circular substrate is attached to a tool side.
  • the mounting member includes a flange portion located on one side of the circular substrate with the center hole interposed therebetween, and a caulking portion located on the other side of the circular substrate with the center hole interposed therebetween.
  • the flange portion is provided with a mounting screw hole at the center thereof on the tool side.
  • the offset type diamond blade which is the third feature of the present invention, is different from the conventional one in that the diamond blade is attached to the tool by using an autter flange member attached to the tool or a flange member using a countersunk screw.
  • a mounting member for the tool is provided in the center hole of the circular substrate in advance, and a mounting screw hole is formed in the flange of the mounting member in accordance with the rotation axis. It prevents center run-out due to the tolerance between the two, and prevents unpleasant vibrations and rattling phenomena, thereby enabling excellent tool life and comfortable cutting work to be performed accurately.
  • the mounting member is integrally attached to the circular substrate, when replacing the offset type diamond blade, the mounting member and the diamond blade can be removed at the same time, making it easy to replace the diamond blade. Can be.
  • the flange member attached to the tool and the nejasha for the flange member are not used, the number of parts required for attaching and detaching to and from the power tool is reduced, and the man-hour is significantly reduced. Becomes possible. In addition, it is possible to work efficiently without losing the flange member and its attached parts during transportation and work.
  • the flange portion of the mounting member When the flange portion of the mounting member is arranged in the concave portion of the circular substrate, it is the same as the surface of the circular substrate, or the depth of the concave portion so as to be located on the concave side. Formed. Therefore, unlike the related art, there is no need to form the concave portion in accordance with the flange member attached to the tool, so that the concave portion can be formed in the most suitable shape in terms of manufacturing efficiency, and the manufacturing cost can be reduced. Also, there is no need to use recesses with different sizes and depths in accordance with the flange members attached to power tools of different models, so that standards can be standardized and efficient production becomes possible.
  • the flange portion has an engagement hole for engaging with a jig for rotating the diamond blade when the diamond blade is attached to the tool side
  • the engagement hole is provided with, for example, a force as a jig.
  • the above-mentioned washer has a grindstone having diamond abrasive grains as a main component attached to an outer peripheral edge of the circular substrate, and a center hole is formed at the center of the circular substrate.
  • a flange portion, a caulking portion and a center hole are formed in the center hole.
  • a diamond blade provided with a mounting member having a hole provided in the center between the circular substrate and the electric tool via the mounting member. And a peripheral wall erected to surround the bottom surface.
  • a cylindrical washer having the bottom surface having the hole at the center as described above and the peripheral wall standing upright so as to surround the bottom surface is used.
  • the washer acts from the power tool side to the side on which the diamond blade is tightened.
  • the occurrence of idling can be prevented.
  • interposing a cylindrical washer having a peripheral wall between the circular substrate and the power tool it is possible to increase the distance between the circular substrate and the power tool. Therefore, the concave portion of the circular substrate is shallow. Even when using a power tool with a relatively long rotating shaft, make sure that the tip of the rotating shaft of the power tool does not protrude from the circular substrate surface on the work material side. be able to.
  • FIG. 1 is a front view of a diamond cup wheel
  • FIG. 2 is a sectional view taken along line AA of FIG. 1
  • FIG. 3 is a sectional view of a mounting member
  • FIG. 5 is a graph showing the noise level at each frequency during work material grinding.
  • FIG. 6 to 13 show a second embodiment
  • FIG. 6 is a front view of a diamond blade
  • FIG. 7 is a sectional view taken along line AA of FIG. 6
  • FIG. 8 is a perspective view showing an example of a disk-shaped toothed washer.
  • FIG. 9 is a perspective view showing an example of a cylindrical washer
  • FIGS. 10 to 13 are explanatory views showing a mounting structure of a diamond blade.
  • FIGS. 14 to 16 show the third embodiment
  • FIG. 14 is a front view of a diamond blade
  • FIG. 15 is a sectional view taken along line AA of FIG. 14, and
  • FIG. 17 is an explanatory view showing a conventional cup wheel
  • FIG. 18 is an explanatory view showing a conventional mounting structure
  • FIGS. 19 to 21 are explanatory views showing a conventional example in the third embodiment.
  • FIGS. 1 to 5 show an embodiment showing the first feature of the present invention.
  • the diamond cup wheel 10 of the present invention has a base 11a on which the segment chip 12 is disposed, 1 lb of elastic material, and a metal cover as a cover for covering 1 lb of elastic material. 11 c and a mounting member 13.
  • the base metal 11a of this example is formed into a cup shape by cutting a metal plate into a ring shape and performing press drawing by a known press device.
  • the outer diameter of the base metal 11a is, for example, ⁇ 100.
  • a tip attachment portion 11 g for attaching the segment chip 12 is formed on the outer peripheral edge of the base metal 11 a.
  • the segment tip 12 is first attached to the tip attachment portion 11 g by brazing, and then, as a finishing step, polishing and painting are performed.
  • the base metal 11a and the segment chip 12 may be joined to a lead body by a simultaneous sintering method.
  • the segment chip 12 of the present example is configured to protrude from the front surface 11h of the base 11a when attached to the chip attachment portion 11g.
  • the shape and number of the segment chips 12 are not particularly limited, and may be appropriately changed depending on the diameter of the base 11a, the material of the work material, and the like.
  • a central hole 1 Id is formed at the center of the base 1 la.
  • the diameter of the center hole 1 Id is formed to be substantially the same as the outer diameter of the force-shrink portion 13b of the mounting member 13 to be described later, so as to penetrate the force-shrink portion 13b and hold the force-shrink portion 13b. Is configured.
  • 1 lb of the elastic material in this example is formed from foamed rubber.
  • 1 lb of the elastic material of the present example is formed in a disk shape having a center hole 11 e formed in the center.
  • the shape of the elastic member 11b is not limited to the above-mentioned disk shape, but may be a member composed of a plurality of pieces. When it is composed of a plurality of pieces, for example, it has a fan shape. Thus, when the shape of the elastic member 11b is a fan shape, an air layer is provided between 1 lb of adjacent elastic members, and the elastic member 11b and the air layer It absorbs vibration and noise.
  • the material of 1 lb of the elastic material is not limited to foamed rubber, but may be a resin material or the like.
  • the metal cover 11 c of this example is provided to protect the elastic material 1 lb.
  • the metal cover 1lb is formed into a cup shape by pressing a metal plate in an annular shape and performing press drawing with a known press device.
  • the metal cover 11c is formed slightly smaller than the base metal 1la.
  • a center hole 1 "If is formed at the center of the metal cover 1 1c.
  • the diameter of the center hole 1 If is the same as that of the center hole 1 Id of the base metal 11a. It is formed so as to have substantially the same outer diameter as the thrust portion 13b of the thirteenth portion, penetrates the thrust portion 13b, and holds the thrust portion 13b.
  • the metal cover 11c protects 1 lb of the elastic material, and also has a function as a washer on the side of the force-screwing portion 13b of the mounting member 13, which will be described later. You. Therefore, the metal cover is made of, for example, iron. In this example, an example in which the metal cover 11 c is used as the cover for covering 1 lb of the elastic material is shown. However, the present invention is not limited to this. Of course, other materials such as reinforced plastics may be used.
  • the mounting member 13 of this example is a nut-shaped member having a flange portion 13a and a force-screwing portion 13b. It is configured to be attached to the center hole 11e and the center hole 11f of the metal cover 11c.
  • the force crimping portion 13b is crimped on the metal cover 11c side at the peripheral edge portion of the center hole 1If of the metal cover 11c.
  • the base 1 la, the elastic member "I 1 b" and the metal cover 1 1 c are connected.
  • the mounting member 13 has a mounting portion for a tool (not shown).
  • the tool is an electric tool having a rotating shaft that is rotated by a motor, such as a grinder.
  • the outer periphery of the rotating shaft of the power tool is threaded to form a male screw.
  • a mounting screw hole 13c is formed at the center of the flange 13a of the mounting member 13.
  • a female screw is formed in the mounting screw hole 13c so as to be screwable with the male screw of the rotating shaft.
  • four engagement holes 13 d are provided on the upper surface of the flange portion 13 a so as to be able to engage with pins of a jig such as a second-force wrench (not shown). Have been.
  • the mounting screw hole 13 c is engaged with the rotating shaft, and the female screw of the mounting screw hole 13 c and the rotating shaft are connected.
  • a male screw is screwed into the hole, and then a pin of a second power wrench is engaged with the engagement hole 13 d, and the diamond cup wheel 10 is rotated with the second power wrench and screwed into the rotating shaft.
  • the number of the engagement holes 13 d is not limited to four and may be set to any number.
  • FIG. 4 is a graph comparing the AP noise level between the diamond cup wheel 10 of the present example and a conventional product. As shown in the graph of FIG. 4, a clear noise attenuation effect was observed in the product of the present example in which the elastic material was disposed between the base metal and the metal cover.
  • FIG. 5 is a graph showing the noise level at each frequency in the diamond cup wheel 10 of the present example and the conventional product. As shown in the graph of FIG. 5, the diamond cup wheel 10 of this example exerts a remarkable damping effect on noise of 2000 Hz or more, which is sensitively perceived by humans.
  • FIGS. 6 to 13 show an embodiment showing the second feature of the present invention.
  • a diamond blade 20 includes a circular substrate 21 and a segment attached to a peripheral portion of the circular substrate 21. It comprises a chip 22 and a mounting member 13 mounted in a center hole of the circular substrate 21.
  • a center hole 21c is formed at the center position of the circular substrate 21, a center hole 21c is formed.
  • the shape of the center hole 21c is formed to be substantially the same as the outer diameter of the force crimp portion 13b of the mounting member 13 described above, so that the center hole 21c penetrates the force crimp portion 13b and holds the force crimp portion 13b. Is configured.
  • the diamond blade 20 of the present example has a circular substrate 21 and a mounting member 13 as shown in FIG. And a pusher 14 is provided between them.
  • a pusher 14 is provided between them.
  • an elastic one such as a spring washer or a rubber washer is used.
  • the washer 14 has a built-in load at the time of caulking, and the mounting member 13 is not only a caulking mechanism but also a caulking mechanism.
  • the circular substrate 21 and the mounting member 13 are surely integrated, and the diamond blade 20 is prevented from spinning.
  • a toothed washer 14a having a tooth portion may be used as the washer 14.
  • the toothed washer 14a is a disk-shaped member having a circular hole 14c at the center as shown in FIG. 8, for example.
  • a protruding piece protruding in the direction is formed, and this protruding piece is bent in the circumferential direction to form a tooth portion 14d.
  • the toothed portion 14d engages with the flange portion 13a and the circular substrate 21, thereby preventing the diamond blade 20 from spinning.
  • the shape of the toothed washer 14a is not limited to the shape shown in FIG. 8; for example, a plurality of protrusions may be provided along the peripheral edge of the hole 14c, or a cut may be made in the peripheral edge of the hole 14c, and the cut may be formed. By raising, a tooth portion may be formed.
  • FIG. 9 shows a cylindrical washer 14b as a further different shape of washer.
  • the washer 14 shown in FIG. 9 is formed in a cylindrical shape having a bottom surface 14e provided with a hole 14c and a peripheral wall 14f erected so as to surround the bottom surface 14e.
  • the cylindrical washer 14b shown in FIG. 9 is disposed between the circular substrate 21 and the force-shrink portion 13b of the mounting member 13, and the end of the peripheral wall 14f is By arranging it so that it faces the power tool, the distance between the circular substrate 21 and the power tool can be increased, so that the tip of the rotating shaft projects from the mounting screw hole 13c of the mounting member 13. It is possible to assemble properly without any problem. In addition, a sufficient coupling force can be ensured by interposing between the circular substrate 21 and the power tool.
  • the inner flange 24 may be provided on the power tool side. With the inner flange 24 interposed, the distance from the base of the rotating shaft to the end face of the flange portion 13a can be increased, and even if the rotating shaft is long, the rotating shaft can be removed from the mounting screw hole 13c of the mounting member 13. Attach diamond blade 20 that does not protrude the tip of Can be removed.
  • the inner flange By forming the inner flange in a shape as shown in FIGS. 11 and 13, it is possible to secure a contact surface with the force-screwing portion 13b of the circular substrate 21 or the end of the peripheral wall 14f of the cylindrical washer 14b. Is preferred.
  • FIGS. 14 to 16 show an embodiment showing the third feature of the present invention.
  • the offset type diamond blade 30 according to the embodiment of the present invention comprises a circular substrate 31 and a circular substrate 31. It is composed of a segment chip 32 attached to the periphery and an attachment member 13 attached to the center hole of the circular substrate 31.
  • the circular substrate 31 of this example is formed of a circular plate-like body made of carbon steel, and has a configuration in which an outer peripheral portion is divided in a circumferential direction by a plurality of slits 31a.
  • the slits 31a are formed at equal intervals on the peripheral edge of the diamond blade 30.
  • the portion sandwiched between the slits 31a is a mounting portion 31b for attaching the segment chip 32, and the segment chip 32 is fixed.
  • a concave portion 31 d is formed in a region including the center of the circular substrate 31 at the center position of the circular substrate 31.
  • a central hole 31c is formed in the center of the circular substrate in the concave portion 31d.
  • the hole 14a of the cylindrical washer 14 is fitted into the force-crimping portion 13b, and the circular substrate 11 and the washer 14 are caulked and joined so as to be integrated back to back.
  • the offset type diamond blade 30 of the present example is provided with a cylindrical washer 14 on the back surface of the circular substrate 31 via a force-shrink portion of the mounting member 13.
  • the cylindrical washer 14 shown in FIG. 9 is used.
  • This cylindrical washer 14 is electrically driven with the diamond blade 30.
  • the diamond blade 30 functions as a spacer for firmly attaching the diamond blade 30 to the tool via the mounting member 13 and as a spacer.
  • the hole 14c of the washer 14 is formed to be large enough to pass through the force-shrinking portion 13b of the mounting member 13.
  • the periphery of the hole 14c is formed flat so that when the caulked portion 13b is caulked, the force caulked portion 13b can be securely caulked.
  • the cylindrical washer 14 is disposed between the circular substrate 31 and the force-shrink portion 13b of the mounting member 13. At this time, the bottom surface 14c of the washer 14 is sandwiched between the circular substrate 31 and the force-shrink portion 13b, and the end of the peripheral wall 14f of the washer 14 is disposed so as to face the power tool. Then, the force-shrinking portion 13b is force-shrinked to fix the washer 14 to the center hole 31c of the circular substrate 31.
  • the washer 14 acts on the side from which the diamond blade 30 is tightened from the power tool side, so that idling can be prevented. In addition, it acts as a spacer between the circular substrate 31 and the electric tool, and increases the distance between the circular substrate 31 and the electric tool so that the rotating shaft of the electric tool is moved from the flange portion 13a of the mounting member 13 Prevent protrusion.
  • the inner flange member 24 is provided on the power tool side. As described above, if the inner flange member 24 is interposed between the diamond blade 30 and the power tool, the inner flange member 24 acts on the side on which the diamond blade 30 is tightened to reduce the occurrence of idling. It is possible to prevent it more reliably.
  • the distance between the root of the rotating shaft and the end surface of the flange portion 13a can be increased by the interposition of the inner flange member 24, and even when the recess 3Id is shallow or when the rotating shaft is long. Even if the mounting member 13 The diamond blade 30 can be mounted without protruding the tip of the rotating shaft from the mounting screw hole 13c.
  • the diamond cup wheel as the first feature of the present invention can attenuate noise and vibration during grinding with an elastic material, and can maintain a favorable working environment. Since the mounting member provided with the mounting portion to the tool side is provided, it is possible to easily replace the diamond cup wheel according to the work situation. Since the conventional flange member attached to the tool is not required, fine center run-out due to tolerance of the flange member can be prevented. Further, the work can be efficiently performed without losing the flange member during transportation or during the work.
  • the diamond blade according to the second feature of the present invention does not require a flange member to be attached to a rotating shaft (spindle) of an electric tool, and the diamond blade and the rotating shaft caused by the tolerance of the flange member are not required. Prevents fine center run-out that occurs between them, and prevents unpleasant vibration and rattling during the cutting operation, and enables accurate cutting. Further, by providing a washer between the flange portion and the circular substrate or between the caulking portion and the circular substrate, idling of the diamond blade can be prevented.
  • the offset type diamond blade according to the third feature of the present invention can reduce the depth of the concave portion and increase the ratio of the maximum outer diameter of the concave portion to the maximum outer diameter of the substrate. In addition to ensuring a sufficient cutting depth, there is no backlash between the diamond blade and the rotating shaft, preventing the rattling phenomenon, prolonging the tool life and accurately performing comfortable cutting work. Becomes possible.

Abstract

L'invention se rapporte à un outil au diamant pourvu d'un élément de montage susceptible de réduire le bruit et les vibrations, de faciliter la fixation sur un outil et le détachement dudit outil, de réduire les vibrations, d'accroître la durée de vie dudit outil, d'empêcher le battage et de permettre une fabrication à coût faible. Ledit outil comprend une roue de coupe au diamant (10) comportant un métal de base (11a) sur lequel sont disposés des segments de coupe (12), un matériau élastique (11b), une couverture métallique (11c) recouvrant le matériau élastique (11b) et un élément de montage (13) reliant l'un à l'autre le métal de base (11a), le matériau élastique (11b) et la couverture métallique, au niveau d'un orifice central (11b) du métal de base (11a), d'un orifice central (11e) du matériau élastique (11b) et d'un orifice central (11e) de la couverture métallique (11c), ledit élément de montage servant également de pièce de montage côté outil.
PCT/JP2000/002824 1999-04-30 2000-04-28 Outil au diamant pourvu d'un element de montage WO2000066326A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP12422699 1999-04-30
JP11/124228 1999-04-30
JP11/124226 1999-04-30
JP11/124227 1999-04-30
JP12422799 1999-04-30
JP12422899 1999-04-30

Publications (1)

Publication Number Publication Date
WO2000066326A1 true WO2000066326A1 (fr) 2000-11-09

Family

ID=27314885

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/002824 WO2000066326A1 (fr) 1999-04-30 2000-04-28 Outil au diamant pourvu d'un element de montage

Country Status (1)

Country Link
WO (1) WO2000066326A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002172523A (ja) * 2000-12-05 2002-06-18 Sankyo Diamond Industrial Co Ltd 回転刃具の取付部材並びに該取付部材を取着してなる回転刃具
JP2005125412A (ja) * 2003-10-21 2005-05-19 Taiho Diamond Kogyo Kk ダイヤモンドカッタ
JP2010042475A (ja) * 2008-08-12 2010-02-25 Goei Seisakusho:Kk カップ型回転工具およびカップ型回転工具の製造方法
CN102152249A (zh) * 2011-03-22 2011-08-17 广东奔朗新材料股份有限公司 消音磨边轮
KR101117093B1 (ko) * 2009-05-06 2012-02-22 베스텍 주식회사 연마용 디스크 제조방법 및 디스크
JP2013184246A (ja) * 2012-03-07 2013-09-19 Hitachi Koki Co Ltd 回転工具
JP2015223691A (ja) * 2014-05-30 2015-12-14 天龍製鋸株式会社 カップホイール
CN108115597A (zh) * 2017-12-26 2018-06-05 王文斌 组合减震降噪磨具
CN110091261A (zh) * 2019-04-18 2019-08-06 佛山市佛晶金属工具制造有限公司 一种自动降噪降温环保型干磨轮

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4729797U (fr) * 1971-04-24 1972-12-05
JPS5669078A (en) * 1979-11-06 1981-06-10 Kurisutensen Maikai Kk Low-noise grindstone
JPS60117057U (ja) * 1984-01-18 1985-08-07 ニユ−レジストン株式会社 オフセツト型弾性砥石用パツド
JPS6150659U (fr) * 1984-09-05 1986-04-05
JPS61181657U (fr) * 1985-04-30 1986-11-12
JPH0438356U (fr) * 1990-07-25 1992-03-31

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4729797U (fr) * 1971-04-24 1972-12-05
JPS5669078A (en) * 1979-11-06 1981-06-10 Kurisutensen Maikai Kk Low-noise grindstone
JPS60117057U (ja) * 1984-01-18 1985-08-07 ニユ−レジストン株式会社 オフセツト型弾性砥石用パツド
JPS6150659U (fr) * 1984-09-05 1986-04-05
JPS61181657U (fr) * 1985-04-30 1986-11-12
JPH0438356U (fr) * 1990-07-25 1992-03-31

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002172523A (ja) * 2000-12-05 2002-06-18 Sankyo Diamond Industrial Co Ltd 回転刃具の取付部材並びに該取付部材を取着してなる回転刃具
JP2005125412A (ja) * 2003-10-21 2005-05-19 Taiho Diamond Kogyo Kk ダイヤモンドカッタ
JP2010042475A (ja) * 2008-08-12 2010-02-25 Goei Seisakusho:Kk カップ型回転工具およびカップ型回転工具の製造方法
KR101117093B1 (ko) * 2009-05-06 2012-02-22 베스텍 주식회사 연마용 디스크 제조방법 및 디스크
CN102152249A (zh) * 2011-03-22 2011-08-17 广东奔朗新材料股份有限公司 消音磨边轮
JP2013184246A (ja) * 2012-03-07 2013-09-19 Hitachi Koki Co Ltd 回転工具
JP2015223691A (ja) * 2014-05-30 2015-12-14 天龍製鋸株式会社 カップホイール
CN108115597A (zh) * 2017-12-26 2018-06-05 王文斌 组合减震降噪磨具
CN110091261A (zh) * 2019-04-18 2019-08-06 佛山市佛晶金属工具制造有限公司 一种自动降噪降温环保型干磨轮

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