WO2014088080A1 - Dispositif de retenue de meule - Google Patents

Dispositif de retenue de meule Download PDF

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Publication number
WO2014088080A1
WO2014088080A1 PCT/JP2013/082746 JP2013082746W WO2014088080A1 WO 2014088080 A1 WO2014088080 A1 WO 2014088080A1 JP 2013082746 W JP2013082746 W JP 2013082746W WO 2014088080 A1 WO2014088080 A1 WO 2014088080A1
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WO
WIPO (PCT)
Prior art keywords
grindstone
mounting seat
pair
holding members
hole
Prior art date
Application number
PCT/JP2013/082746
Other languages
English (en)
Japanese (ja)
Inventor
山崎　進
孝次 青山
Original Assignee
株式会社シンテック
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Filing date
Publication date
Application filed by 株式会社シンテック filed Critical 株式会社シンテック
Publication of WO2014088080A1 publication Critical patent/WO2014088080A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
    • 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
    • B24D7/02—Wheels in one piece
    • 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
    • B24D7/16—Bushings; Mountings

Definitions

  • the present invention relates to a grindstone holding device.
  • a polishing apparatus for polishing a peripheral surface of a cylindrical object to be used that is used as a printing plate-making roll is known (see, for example, Patent Document 1 (paragraph 0007)).
  • the polishing apparatus is an apparatus that polishes the peripheral surface of the object to be polished by pressing a cylindrical (cylindrical or annular) polishing grindstone against the peripheral surface of the object to be polished while being rotated by a rotation mechanism.
  • the polishing apparatus disclosed in Patent Document 1 includes a grindstone flange that supports a rear end surface of the grindstone, and the grindstone and the grindstone flange are joined together by a strong adhesive.
  • the polishing wheel attached to the polishing apparatus is a consumable part that wears on the end surface that contacts the object to be polished, it is necessary to replace the polishing wheel with a new one as the wear progresses.
  • the polishing apparatus disclosed in Patent Document 1 since the polishing grindstone is bonded to the grindstone flange with a strong adhesive, it takes a long time to replace the worn grindstone with a new one. There is a problem of end up. Specifically, an operation for removing a worn grinding wheel from the grinding wheel flange and a task for bonding a new grinding wheel to the grinding wheel flange with an adhesive are required as replacement operations.
  • the materials such as the above-described peeling solvent and adhesive may not have desirable properties for the environment surrounding the polishing apparatus or the plate making roll polished by the polishing apparatus, and it is said that these materials are not used as much as possible. There is also a request.
  • the present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a grindstone holding device capable of easily and quickly exchanging a grinding wheel.
  • the grindstone holding device is disposed on both sides sandwiching the axis of the mounting seat and mounted on a rotating mechanism that rotates a cylindrical polishing grindstone around its central axis, and in a direction perpendicular to the axis.
  • An end contact surface that is movably attached to the mounting seat and is brought into contact with one end surface in the central axis direction of the polishing grindstone, and an outer peripheral contact surface that is in the shape of an arc inner surface that is brought into contact with the outer circumferential surface of the polishing grindstone
  • a pair of holding members having a fan shape in plan view and a fastener for moving the pair of holding members in directions close to each other are provided.
  • one end surface of the cylindrical polishing grindstone is brought into close contact with the end contact surfaces of the pair of holding members attached to the mounting seat, and a pair of both sides sandwiching the axis of the mounting seat.
  • the polishing grindstone is sandwiched in the direction perpendicular to the axis by the arc-shaped inner peripheral contact surfaces of the pair of holding members.
  • the outer peripheral contact surfaces of the pair of holding members are brought into close contact with the outer peripheral surface of the polishing grindstone, and the polishing grindstone is attached to the mounting seat by friction. It will be in the state where it was held so that it might not leave. By doing in this way, it becomes possible to perform the exchange work of a grinding stone easily and in a short time.
  • the polishing grindstone may include a through-hole penetrating along the central axis, and the mounting seat may be provided with a columnar boss portion that fits into the through-hole. Good.
  • the through-hole with which a grinding wheel is equipped is hold
  • the through hole is held by the boss portion and the center axis of the grinding wheel coincides with the axis of the mounting seat, the conventional problem that the center axis of the grinding wheel shifts from the axis of the mounting seat due to drying of the adhesive. Can be prevented.
  • the pressing force applied to the central axis of the polishing wheel applied to the outer peripheral surface of the polishing wheel by the pair of holding portions is canceled by the pressing force applied to the outer side of the polishing wheel applied to the through hole of the polishing wheel by the boss portion.
  • the possibility that the polishing grindstone is destroyed can be reduced.
  • grooved part may be provided in the said outer peripheral contact surface.
  • channel extended in the direction orthogonal to the said axis line is provided in any one of the said mounting seat and the said pair of holding members, and either of the said mounting seat and the said pair of holding members
  • a protrusion that slidably engages with the dovetail groove may be provided.
  • the pair of holding members can be attached to the mounting seat so as to be movable in a direction perpendicular to the axis of the mounting seat by the dovetail groove and the convex portion slidably engaged with the dovetail groove. it can.
  • the said fastener is provided with the fastening bolt which equips the front-end
  • the holding member includes a fastening hole extending in a direction perpendicular to the axis, and a fitting hole in which the cylindrical member is rotatably fitted around an axis parallel to the central axis, and is inserted into the fastening hole.
  • the male screw portion of the fastening bolt may be fastened to the screw hole of the columnar member fitted in the fitting hole.
  • the other holding member is aligned with the direction of the fastening bolt inserted into the fastening hole of one holding member.
  • the male screw portion of the fastening bolt and the screw hole of the columnar member can be appropriately fastened.
  • the thread part may be formed in the outer peripheral surface of the said boss
  • FIG. 1 is a partial side sectional view showing a grindstone holding device according to an embodiment of the present invention.
  • the grindstone holding device 1 includes a mounting seat 2, a pair of holding members 3 (holding members 3a and 3b), and a fastener 4 (fastening bolts 4a and 4b). , Cylindrical members 4c, 4d) and a boss portion 5.
  • the grindstone holding device 1 is fixed to a flange portion F provided at the tip of a rotating mechanism (not shown) of a grinder that rotates a cylindrical polishing grindstone P around its central axis C, and holds the grindstone P It is.
  • a material for the mounting seat 2, the pair of holding members 3, the fastener 4, and the boss portion 5 it is desirable to use a metal material such as aluminum, for example.
  • the mounting seat 2 is a disk-shaped member that includes a mounting seat body 2a, bar screws 2b and 2d, and nuts 2c and 2e, and is attached to a rotating mechanism of the polishing apparatus.
  • the mounting seat main body 2a is a disk-shaped member, and is provided with two screw holes to which the bar screws 2b and 2d are fastened at positions symmetrical to the axis (the axis of the central axis C).
  • One end portions of the bar screws 2b and 2d are fastened to two screw holes provided in the mounting seat body 2a.
  • the other ends of the bar screws 2b and 2d are fastened to the nuts 2c and 2e in a state of passing through through holes provided in the flange portion F of the rotating mechanism.
  • the mounting seat main body 2a is fixed to the rotating mechanism of the polishing apparatus.
  • the pair of holding members 3 are members that hold the polishing grindstone P, and are brought into contact with the end contact surface S1 that is brought into contact with one end surface in the central axis direction of the polishing grindstone P and the outer peripheral surface of the polishing grindstone P.
  • FIG. 2 is a front view showing the mounting seat 2.
  • through holes 2f, 2g, 2h, 2i, 2j, 2k into which fastening bolts for fastening the mounting seat body 2a and the pair of holding members 3 are inserted are attached to the mounting seat body 2a.
  • 2l, 2m are provided.
  • the through holes 2f to 2m are arranged on concentric circles having the same distance from the position of the central axis C serving as the rotation center of the mounting seat 2.
  • the through holes 2f to 2m are counterbored so that the heads of the fastening bolts are accommodated in the counterbore holes.
  • the mounting seat body 2a is provided with through holes 2n, 2o, 2p, 2q into which fastening bolts for fastening the mounting seat body 2a and the boss portion 5 are inserted.
  • the through holes 2n to 2q are arranged on concentric circles having the same distance from the position of the central axis C serving as the rotation center of the mounting seat 2.
  • the through holes 2n to 2q are counterbored so that the heads of the fastening bolts are accommodated in the counterbore holes.
  • FIG. 3 is a rear view showing the mounting seat 2.
  • the mounting seat main body 2 a has a dovetail groove 2 r in which the convex portions 3 c of the holding member 3 a constituting the pair of holding members 3 are slidably engaged, and a pair of holding members 3.
  • a dovetail groove 2s is provided in which the convex portion 3d of the holding member 3b is slidably engaged.
  • the dovetail grooves 2r and 2s each extend in a direction perpendicular to the axis that is the rotation center of the mounting seat 2, and the width W2 of the inner part indicated by the dotted line is larger than the width W1 of the opening indicated by the solid line in FIG. Has a wide shape.
  • FIG. 4 is a front view showing the pair of holding members 3 and fastening bolts 4a and 4b.
  • the pair of holding members 3 are configured by holding members 3 a and 3 b that are semicircular in plan view.
  • the holding member 3a is provided with a convex portion 3c that slidably engages with the dovetail groove 2r of the mounting seat body 2a described above.
  • the holding member 3b is provided with a convex portion 3d that is slidably engaged with the dovetail groove 2s of the mounting seat body 2a described above.
  • the convex portions 3c and 3d extend in a direction perpendicular to the axis serving as the rotation center of the attachment seat 2, and are indicated by dotted lines in FIG.
  • the width W4 of the front end portion indicated by the solid line is wider than the width W3 of the portion.
  • the width W3 is narrower than the width W1 and the width W4 is narrower than the width W2 so that the convex portion 3c is slidably engaged with the dovetail groove 2r.
  • the width W3 is narrower than the width W1 and the width W4 is narrower than the width W2 so that the convex portion 3d is slidably engaged with the dovetail groove 2s.
  • the holding members 3a and 3b are arranged on both sides of the axis (center axis C) of the mounting seat 2, respectively.
  • the holding member 3a is attached to the mounting seat main body 2a by inserting the end E3 of the convex portion 3c into the end E1 of the dovetail groove 2r of the mounting seat main body 2a.
  • the attachment of the holding member 3b to the mounting seat body 2a is performed by inserting the end E4 of the convex portion 3d into the end E2 of the dovetail groove 2s of the mounting seat body 2a.
  • the configuration in which the dovetail grooves 2r and 2s are provided in the mounting seat 2 and the convex portions 3c and 3d that slidably engage with the dovetail grooves 2r and 2s is provided in the pair of holding members 3 has been described.
  • other modes may be used.
  • either one of the mounting seat 2 and the pair of holding members 3 is provided with a dovetail groove, and the other of the mounting seat 2 and the pair of holding members 3 is provided with a convex portion that slidably engages with the dovetail groove.
  • the configuration can be made.
  • the pair of holding members 3 include fastening holes 3f and 3g extending in a direction perpendicular to the axis of the mounting seat 2 in a state where the pair of holding members 3 are mounted on the mounting seat 2.
  • the pair of holding members 3 includes a fitting hole 3h into which a columnar member 4c described later is fitted, and a fitting hole 3i into which a columnar member 4d described later is fitted.
  • screw holes 3 j, 3 k, 3 l, 3 m, 3 n to which fastening bolts for fastening the mounting seat body 2 a and the pair of holding members 3 are fastened, are attached to the pair of holding members 3. 3o, 3p, and 3q are provided.
  • the screw holes 3j to 3q are arranged on concentric circles having the same distance from the position of the axis serving as the rotation center of the mounting seat 2.
  • FIG. 5 is a rear view showing the pair of holding members 3, fastening bolts 4a and 4b, and cylindrical members 4c and 4d.
  • the pair of holding members 3 are members that hold the polishing wheel P.
  • the end contact surface S1 that is brought into contact with one end surface in the central axis direction of the polishing wheel P and the outer peripheral surface of the polishing wheel P
  • an outer peripheral contact surface S2 having a circular arc inner surface which is brought into contact with the outer peripheral surface.
  • the holding members 3a and 3b are semicircular members in plan view, and as shown in a cross section in FIG.
  • the width W5 in the central axis direction of the portion located near the central axis of the polishing grindstone P is narrow, and the polishing grindstone
  • the width W6 in the direction of the central axis of the portion located far from the central axis of P is wide.
  • one end face of the width W5 portion of the holding members 3a, 3b is an end contact surface S1
  • the surface on the polishing grindstone P side of the width W5 portion of the holding members 3a, 3b is an outer peripheral contact surface S2.
  • the outer peripheral contact surface S2 is a circular arc inner surface.
  • the outer peripheral contact surface S2 is provided with an uneven portion (not shown), and the frictional force with the outer peripheral surface of the polishing grindstone is enhanced as compared with the case where the uneven portion is not provided.
  • the concave and convex portions may be provided by forming grooves in the direction along the central axis C or grooves in the direction orthogonal to the central axis C on the outer peripheral contact surface S2. Further, for example, knurling may be performed on the outer peripheral contact surface S2.
  • a through hole that opens from the outer peripheral side of the holding members 3a and 3b to the outer peripheral contact surface S2 is provided, and a rod-shaped male screw member is fastened to a female screw portion formed inside the through hole, so that the tip of the male screw member
  • An uneven portion may be provided by disposing the portion so as to protrude from the outer peripheral contact surface S2.
  • the fastener 4 is composed of fastening bolts 4a and 4b and columnar members 4c and 4d.
  • the fastening bolts 4 a and 4 b are provided with male screw portions at the tip portions and are inserted into fastening holes 3 f and 3 g provided in the pair of holding members 3, respectively.
  • the holding member 3a on which one end portions of the fastening holes 3f and 3g are arranged is counterbored so that the heads of the fastening bolts 4a and 4b are accommodated in the counterbore holes.
  • the male screw portions at the distal ends of the fastening bolts 4a and 4b are positioned in the fitting holes 3h and 3i.
  • the fitting holes 3h, 3i open to one end surface (the surface shown in the rear view of FIG. 5) of the pair of holding members 3 in the central axis C direction, and the other end surfaces (the center axis C direction of the pair of holding members 3).
  • the surface shown in the front view of FIG. 4 is a hole that is not open.
  • the fitting members 3h and 3i are fitted with cylindrical members 4c and 4d, respectively, having screw holes for fastening with the male screw portions of the fastening bolts 4a and 4b on the outer peripheral surface.
  • the male screw portions at the tip ends of the fastening bolts 4a and 4b are fastened to the screw holes of the columnar members 4c and 4d fitted in the fitting holes 3h and 3i, respectively.
  • the fastener 4 of the present embodiment moves the holding members 3a and 3b constituting the pair of holding members 3 in directions close to each other by fastening the fastening bolts 4a and 4b and the columnar members 4c and 4d. Is. Then, by moving the pair of holding members 3 in a direction approaching each other by the fastener 4, one end surface of the polishing grindstone P is held by the end contact surface S ⁇ b> 1 of the pair of holding members 3, and the polishing grindstone P The outer peripheral surface is held by the outer peripheral contact surface S ⁇ b> 2 of the pair of holding members 3.
  • the grinding wheel P is provided with a through-hole penetrating along the central axis C serving as a rotation center
  • the mounting seat 2 is provided with a columnar boss portion 5 that fits into the through-hole of the grinding wheel P.
  • the outer peripheral surface of the boss portion 5 has an inner surface of the pair of holding members 3 even when the pair of holding members 3 moves in a direction in which they are close to each other and holds the polishing grindstone P. It is designed not to touch the surrounding surface.
  • the boss portion 5 is a columnar member that fits into the through hole of the grinding wheel P, and the outer diameter D of the boss portion 5 and the inner diameter of the through hole of the grinding wheel P substantially coincide. Further, as shown in FIG.
  • the boss portion 5 is a member fastened to the mounting seat body 2 a by a fastening bolt 6, and is detachably provided on the mounting seat 2.
  • the grindstone holding device 1 can be configured to appropriately hold the polishing grindstone P.
  • FIG. 6 is a right side view of the pair of holding members 3.
  • the convex part 3c provided in the holding member 3a is in the state engaged with the dovetail groove 2r provided in the mounting seat main body 2a. Further, one end face of the polishing grindstone P is held by the end contact surface S1 of the holding member 3a, and the outer peripheral face of the polishing grindstone P is held by the outer peripheral contact face S2 of the holding member 3a.
  • polishing grindstone P is demonstrated.
  • the boss portion 5 having an outer diameter corresponding to the inner diameter of the through hole of the grinding wheel P to be attached is mounted on the mounting seat body 2 a of the mounting seat 2.
  • the mounting seat 2 is placed on a plane such as a work table in a retracted state so that the bar screws 2b and 2d are not abutted on the plane.
  • the end E3 of the convex portion 3c of the holding member 3a is inserted into the end E1 of the dovetail groove 2r of the mounting seat 2, and the holding member 3a is directed toward the central axis C in a direction perpendicular to the axis of the mounting seat 2.
  • the end E2 of the convex portion 3d of the holding member 3b is inserted into the end E2 of the dovetail groove 2s of the mounting seat 2, and the holding member 3b is directed toward the central axis C in a direction perpendicular to the axis of the mounting seat 2.
  • the through hole of the grinding stone P is fitted to the boss portion 5 with the holding member 3a and the holding member 3b being separated to some extent.
  • one end surface of the polishing grindstone P is in contact with the end contact surface S1 of the holding member 3a, while the outer peripheral surface of the polishing grindstone P is not in contact with the outer peripheral contact surface S2 of the holding member 3a.
  • the holding member 3a and the holding member 3b are moved toward the central axis C, and the outer peripheral surface of the polishing wheel P is the outer peripheral contact surface S2 of the holding member 3a.
  • the fastening bolts 4a and 4b With the outer peripheral surface of the grinding stone P in contact with the outer peripheral contact surface S2 of the holding member 3a, the fastening bolts 4a and 4b are inserted into the fastening holes 3f and 3g, respectively, and the male thread portion at the tip of the fastening bolts 4a and 4b
  • the cylindrical members 4c and 4d fitted in the fitting holes 3h and 3i are respectively fastened to the screw holes.
  • the degree to which the fastening bolts 4 a and 4 b are tightened is appropriately adjusted so that one end surface of the polishing grindstone P is held by the end contact surfaces S ⁇ b> 1 of the pair of holding members 3, and the outer peripheral surface of the polishing grindstone P is the outer peripheral contact of the pair of holding members 3.
  • the state is held by the surface S2.
  • the pair of holding members 3 are attached to the mounting seat 2, the grinding wheel P is held by the pair of holding members 3, and the pair of holding members 3 are fixed to the mounting seat 2. It will be in the state. Thereafter, the nuts 2c and 2e are removed from the bar screws 2b and 2d, and the bar screws 2b and 2d are inserted into the through holes provided in the flange portion F of the rotating mechanism, and the end surface of the flange portion F and the end surface of the mounting seat body 2a. Are in contact with each other. Then, the nuts 2c and 2e are fastened to the end portions of the bar screws 2b and 2d in a state where the bar screws 2b and 2d are inserted into the through holes.
  • the grindstone is held by the grindstone holding device 1, and the grindstone holding device 1 is attached to the rotating mechanism of the polishing apparatus.
  • the rotating mechanism of the polishing apparatus is operated, and the grindstone holding device 1 is rotated about the central axis C by the rotating mechanism, whereby the polishing grindstone P rotates about the central axis C.
  • the peripheral surface of a to-be-polished body can be grind
  • the holding member 3a and the holding member 3b are fastened at two locations by fastening bolts 4a and 4b as shown in FIGS.
  • the holding member 3a and the holding member 3b are fastened while maintaining a symmetrical positional relationship as shown in FIGS. Can do.
  • the grindstone holding device 1 of this embodiment has a structure capable of fastening the holding member 3a and the holding member 3b without equalizing the degree of fastening by the fastening bolt 4a and the fastening bolt 4b.
  • the columnar members 4c and 4d are fitted to the fitting holes 3h and 3i by clearance fitting. Accordingly, the cylindrical members 4c and 4d are fitted in the fitting holes 3h and 3i in a state where the cylindrical members 4c and 4d can rotate around an axis parallel to the central axis C. Therefore, when the pair of holding members 3 are moved and fastened to each other and fastened, the holding members 3b are aligned with the fastening bolts 4a and 4b inserted into the fastening holes 3f and 3g of the holding member 3a.
  • the pair of holding members 3 are configured by the holding members 3a and 3b that are semicircular in plan view, but may be in other modes.
  • the central angle may be smaller than 180 °. That is, the pair of holding members 3 may be in the shape of a sector in plan view with a central angle of 180 ° or less. By using such a shape, at least a part of the outer periphery of the polishing grindstone P is used as a pair of holding members. 3 can be held appropriately.
  • the polishing wheel P is provided with a through hole penetrating along the central axis C.
  • the polishing grindstone P may be, for example, a cylindrical shape not provided with a through hole. In this case, since the boss portion 5 fitted into the through hole is not required, the polishing grindstone P is attached to the grindstone holding device 1 in a state where the boss portion 5 is not attached to the mounting seat 2.
  • the end contact surfaces S1 of the pair of holding members 3 are not provided with through holes penetrating to other surfaces (front surfaces of the pair of holding members 3 shown in FIG. 4).
  • a hole may be provided.
  • a through hole penetrating along the central axis C is also provided in the mounting seat 2 at a position facing the through holes of the pair of holding members 3. That is, in a state where the pair of holding members 3 hold the polishing grindstone P, the through holes provided in the mounting seat 2 and the pair of holding members 3 are provided from the front surface (surface shown in FIG. 2) of the mounting seat 2.
  • the polishing grindstone P may be visible through the formed through hole.
  • the through-hole provided in the attachment seat 2 and the through-hole provided in the pair of holding members 3 may be provided at one place, or may be provided at two or more places (for example, four places). In this case, it is desirable to arrange a plurality of through holes so that the weight balance in the circumferential direction around the central axis C is uniform.
  • the mounting seat 2 includes the bar screws 2b and 2d and the nuts 2c and 2e, and the mounting screws 2 are passed through the through holes provided in the flange portion F of the rotating mechanism.
  • the configuration of the mounting seat 2 may be another mode as long as the configuration is suitable for mounting on the rotating mechanism of the polishing apparatus.
  • one end surface of the cylindrical polishing grindstone P is brought into close contact with the end contact surfaces S1 of the pair of holding members 3 attached to the mounting seat 2.
  • the grinding wheel P is perpendicular to the axis by the outer circumferential contact surface S2 of the arcuate inner surface of the pair of holding members 3 It is sandwiched in the direction to do.
  • the polishing grindstone is bonded to the grindstone flange with a strong adhesive, and a gas burner is used to melt the adhesive by applying heat to remove the adhesive or by applying heat to the adhesive. It was necessary to use.
  • the grindstone holding device 1 of the present embodiment it is possible to easily and quickly replace the grindstone P without using a peeling solvent or a gas burner.
  • the grindstone holding device 1 of the present embodiment includes a through hole through which the polishing grindstone P penetrates along the central axis C, and the mounting seat 2 is provided with a columnar boss portion 5 that fits into the through hole. Yes.
  • the through-hole with which the grinding wheel P is equipped is hold
  • the through hole is held by the boss portion 5 and the center axis C of the grinding wheel P and the axis of the mounting seat 2 coincide with each other, the center axis C of the grinding wheel P is separated from the axis of the mounting seat 2 by drying of the adhesive. It is possible to prevent the conventional inconvenience of shifting.
  • the pressing force applied to the central axis C of the polishing grindstone P applied to the outer peripheral surface of the polishing grindstone P by the pair of holding members 3 is applied to the outside of the polishing grindstone P applied to the through hole of the polishing grindstone P by the boss portion 5.
  • the rotational center position of the grinding wheel P rotated by the rotating mechanism of the polishing apparatus does not coincide with the center axis C of the grinding wheel P.
  • the grinding wheel P rotates about the axis of the mounting seat 2 with the eccentricity.
  • the grindstone holding device 1 of the present embodiment is provided with a cylindrical boss portion 5 fitted in the through hole on the mounting seat 2, and by aligning the center axis C of the polishing grindstone P with the axis of the mounting seat 2, It can grind
  • hub part 5 is provided in the attachment seat 2 so that attachment or detachment is possible. By doing in this way, it becomes possible to replace the boss
  • grooved part is provided in outer peripheral contact surface S2.
  • the outer peripheral surface of the polishing grindstone P and the outer peripheral contact surface of the pair of holding members 3 as the polishing whetstone P absorbs the polishing liquid and expands.
  • the frictional force with S2 is further increased, and the possibility that the grinding wheel P is detached can be further reduced.
  • dovetail grooves 2r and 2s extending in a direction perpendicular to the axis line are provided in one of the mounting seat 2 and the pair of holding members 3, and the mounting seat 2 and the pair of holding members 3 are provided.
  • Protrusions 3c and 3d that are slidably engaged with the dovetail grooves 2r and 2s are provided on the other of the holding members 3.
  • the pair of holding members 3 is mounted on the mounting seat 2 with respect to the mounting seat 2 by the protrusions 3c and 3d slidably engaged with the dovetail grooves 2r and 2s and the dovetail grooves 2r and 2s. It can be attached to be movable in a direction perpendicular to the axis.
  • the fastener 4 is a cylindrical member provided with fastening bolts 4a and 4b each having a male threaded portion at the tip, and a screw hole for fastening with the male threaded portion on the outer peripheral surface.
  • a pair of holding members 3 are fitted into fastening holes 3f and 3g extending in a direction perpendicular to the axis, and cylindrical members 4c and 4d are rotatably fitted around an axis parallel to the central axis C.
  • the outer diameter D of the boss portion 5 shown in FIGS. 1 and 5 is substantially the same as the inner diameter of the through hole of the polishing grindstone P, but other embodiments may be used.
  • the outer diameter D of the boss portion 5 may be larger than the inner diameter of the through hole of the polishing grindstone P.
  • a male screw portion screw portion
  • the outer diameter D of the boss part 5 is the diameter of the top of the mountain of the male screw part.
  • the operator of the grindstone holding device 1 can set the through hole of the grinding stone P having an inner diameter smaller than the outer diameter of the boss portion 5 to the boss portion in the direction of the central axis C.
  • the polishing grindstone P is rotated around the central axis C in a state where it is in contact with the tip of 5. Since the boss portion 5 is formed of a metal material having a hardness higher than that of the polishing grindstone P, by rotating the polishing grindstone P around the central axis C, a female screw is formed on the inner peripheral surface of the through hole of the polishing grindstone P. Part is formed.
  • the through hole of the grinding stone P is brought into contact with the male screw portion formed on the outer peripheral surface of the boss portion 5, and the polishing grindstone P is rotated around the central axis, so that the inner circumferential surface of the through hole is female.
  • the thread portion is formed, other modes may be used.
  • a female screw forming jig having the same shape as the male screw part formed on the outer peripheral surface of the boss part 5 is prepared, and the jig is rotated around the axis of the grinding stone P while contacting the jig with the through hole of the grinding stone P.
  • the internal thread portion may be formed on the inner peripheral surface of the through-hole of the polishing grindstone P.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un dispositif de retenue de meule au moyen duquel l'échange de la meule abrasive peut être effectué facilement et rapidement. Le dispositif de retenue de meule selon l'invention est équipé : d'un support de montage qui est installé sur un mécanisme de rotation permettant de tourner une meule abrasive cylindrique autour de son axe central (C) ; d'une paire d'éléments de retenue (3) qui sont en forme de ventilateur en vue en plan, les éléments de retenue étant disposés des deux côtés de l'axe du support de montage, étant installés sur le support de montage de sorte à être mobiles dans une direction qui est orthogonale à l'axe, et ayant une surface de contact d'extrémité (S1) qui est placée en contact avec une face d'extrémité de la meule abrasive dans la direction de l'axe central (C) et une surface de contact de circonférence extérieure (S2) avec une surface intérieure en arc de cercle qui est placée en contact avec la surface circonférentielle extérieure de la meule abrasive ; et de boulons de serrage (4a, 4b) permettant d'amener les deux éléments de retenue (3) l'un vers l'autre.
PCT/JP2013/082746 2012-12-07 2013-12-05 Dispositif de retenue de meule WO2014088080A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-268615 2012-12-07
JP2012268615A JP5848691B2 (ja) 2012-12-07 2012-12-07 砥石保持装置

Publications (1)

Publication Number Publication Date
WO2014088080A1 true WO2014088080A1 (fr) 2014-06-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/082746 WO2014088080A1 (fr) 2012-12-07 2013-12-05 Dispositif de retenue de meule

Country Status (2)

Country Link
JP (1) JP5848691B2 (fr)
WO (1) WO2014088080A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR561515A (fr) * 1923-01-27 1923-10-23 Machine à poncer portative
US1710528A (en) * 1925-06-23 1929-04-23 Carborundum Co Grinding wheel and holder therefor
JPS49133290U (fr) * 1973-03-12 1974-11-15
JPS6061154U (ja) * 1983-09-30 1985-04-27 株式会社日平トヤマ 砥石取付装置
JP2006281392A (ja) * 2005-04-01 2006-10-19 Tsunoda Brush Seisakusho:Kk 半割り式バフ研磨ロールにおけるバフ取付け構造並びにその成形方法
JP2007216330A (ja) * 2006-02-16 2007-08-30 Goei Seisakusho:Kk ディスク状砥石

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR561515A (fr) * 1923-01-27 1923-10-23 Machine à poncer portative
US1710528A (en) * 1925-06-23 1929-04-23 Carborundum Co Grinding wheel and holder therefor
JPS49133290U (fr) * 1973-03-12 1974-11-15
JPS6061154U (ja) * 1983-09-30 1985-04-27 株式会社日平トヤマ 砥石取付装置
JP2006281392A (ja) * 2005-04-01 2006-10-19 Tsunoda Brush Seisakusho:Kk 半割り式バフ研磨ロールにおけるバフ取付け構造並びにその成形方法
JP2007216330A (ja) * 2006-02-16 2007-08-30 Goei Seisakusho:Kk ディスク状砥石

Also Published As

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JP5848691B2 (ja) 2016-01-27
JP2014113655A (ja) 2014-06-26

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