WO2014057894A1 - 弾性砥石のドレッシング方法 - Google Patents
弾性砥石のドレッシング方法 Download PDFInfo
- Publication number
- WO2014057894A1 WO2014057894A1 PCT/JP2013/077160 JP2013077160W WO2014057894A1 WO 2014057894 A1 WO2014057894 A1 WO 2014057894A1 JP 2013077160 W JP2013077160 W JP 2013077160W WO 2014057894 A1 WO2014057894 A1 WO 2014057894A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grindstone
- elastic
- outer peripheral
- peripheral surface
- elastic grindstone
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
- B24B53/053—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels using a rotary dressing tool
Definitions
- the present invention relates to a dressing method for an elastic grindstone.
- Glass plates for FPD used for liquid crystal displays, plasma displays, etc. are formed by forming molten glass into a plate shape, and then cut into a glass plate of a predetermined rectangular size by a cutting device. Thereafter, the edge of the glass plate is chamfered by a chamfering grindstone of a chamfering device disclosed in Patent Document 1 or the like.
- the chamfering apparatus described in Patent Document 2 includes a metal bond grindstone (grinding grindstone) having a V-shaped groove for grinding on the outer peripheral surface, and an elastic grindstone (polishing grindstone) having a flat outer peripheral surface as a polishing surface. It has.
- the edge of the plate-like body is ground by the V-shaped groove of the metal bond grindstone to form a chamfered surface on the edge, and then the chamfered surface is flattened of the elastic grindstone. Polish by the outer peripheral surface.
- Patent Document 2 exemplifies butyl rubber, silicone, polyurethane, or natural rubber as the bond of the elastic grindstone, and alumina (Al 2 O 3 ), silicon carbide (SiC), pumice, or garnet as the grindstone. Is illustrated.
- a flat outer peripheral surface which is a polishing surface that comes into contact with a chamfered surface of a plate-like body, is worn with the passage of processing time.
- an annular groove in which the shape of the edge of the plate-like body is transferred is formed on the flat outer peripheral surface.
- the annular groove becomes deeper, not only the edge of the plate-like body but also the main surface of the plate-like body is polished, so when the annular groove reaches a predetermined depth, the outer peripheral surface of the elastic grindstone is ground. It is necessary to return to the original flat shape, that is, to dress the outer peripheral surface of the elastic grindstone.
- the outer peripheral surface of the grinding wheel is burned or expanded by high-temperature processing heat generated at the point contact portion between the cutting tool and the outer peripheral surface of the elastic wheel.
- the bond of the elastic grindstone is an elastic body, it is difficult to grind the outer peripheral surface into a flat shape with a tool that performs grinding by applying high pressure. Therefore, dressing with a bite has a problem that the grinding accuracy of the outer peripheral surface is poor.
- a disk-shaped or cylindrical metal bond grindstone as a dressing tool. That is, the metal bond grindstone and the outer peripheral surface of the elastic grindstone are rotated in a line contact state, and the processing heat generated at the line contact portion is reduced to grind the outer peripheral surface of the elastic grindstone.
- a wet dressing method may be employed in which the outer peripheral surface of the elastic grindstone is ground while spraying cutting water onto the line contact portion to wash away grinding debris.
- the wet dressing method has a problem that a water treatment facility for the cutting water is required because the cutting water after use contains grinding waste.
- the present invention has been made in view of such circumstances, and without using a wet dressing method, that is, an elastic grindstone capable of dressing the outer peripheral surface of an elastic grindstone flatly and accurately by adopting a dry dressing method.
- the object is to provide a dressing method.
- the present invention provides an elastic grindstone dressing method for dressing an elastic grindstone having a flat outer peripheral surface as a polishing surface, and the elastic grindstone and the electrodeposited grindstone in which an annular groove is formed on the outer peripheral surface.
- the elastic grindstone and the electrodeposited grindstone are rotated relative to each other about the respective central axes, and the outer peripheral surface of the electrodeposited grindstone and the outer peripheral surface of the elastic grindstone are relatively pressed, whereby the outer peripheral surface of the elastic grindstone is electrodeposited.
- a dressing method for an elastic grindstone which is dressed by grinding into a flat shape with a grindstone.
- the outer peripheral surface which is the polishing surface of the elastic grindstone
- an electrodeposition grindstone that can be dressed without clogging even in a dry dressing method. That is, an annular groove is formed on a flat outer peripheral surface, and an elastic grindstone that requires dressing and an electrodeposited grindstone are rotated around each central axis, and the outer peripheral surface of the electrodeposited grindstone and the outer peripheral surface of the elastic grindstone are Are pressed relatively. As a result, the outer peripheral surface of the elastic grindstone is worn and crushed by the outer peripheral surface of the electrodeposited grindstone, and the outer peripheral surface of the elastic grindstone is ground into a flat shape and dressed.
- Electrodeposition grindstone is a grindstone in which diamond or CBN (Cubic Boron Nitride) is held on the surface of the base member while nickel plating is applied and the abrasive is mechanically fixed to the base member. It is.
- the electrodeposition grindstone has a feature that the amount of abrasive grain protrusion is larger than that of a metal bond grindstone or resin bond grindstone, and sharpness is sharper than these grindstones. With this feature, even if the electrodeposition grindstone is an elastic grindstone having an annular groove formed on the outer peripheral surface, it can be accurately dressed in a flat shape without being clogged by a dry dressing method.
- the dressing method using an electrodeposition grindstone only requires installing a small dust collector at the dressing site that sucks and collects the pulverized material scattered during the dressing. No processing equipment is required.
- the present invention provides an elastic material in which the outer peripheral surface, which is a polishing surface, is pressed against the edge of the plate-like body, and the edge is polished by rotating around its central axis.
- the elastic grindstone And the electrodeposition grindstone are rotated about each central axis to relatively press the outer peripheral surface of the electrodeposited grindstone and the outer peripheral surface of the elastic grindstone, thereby
- a dressing method for an elastic grindstone which is dressed by grinding a surface into a flat shape with the electrodeposition grindstone.
- the present invention is specialized in the dressing method of an elastic grindstone for polishing the edge of a plate-like body.
- the outer peripheral surface of the elastic grindstone having a flat outer peripheral surface is pressed against the edge of the plate-like body, and the elastic grindstone is rotated about its central axis to polish the edge.
- the flat outer peripheral surface of the elastic grindstone is worn, and an annular groove to which the shape of the edge of the plate-like body is transferred is formed on the outer peripheral surface.
- the annular groove reaches a predetermined depth, the outer peripheral surface of the elastic grindstone is dressed by the dressing method of the present invention.
- the rotational direction of the elastic grindstone and the rotation direction of the electrodeposited grindstone are made the same direction, and the relative positions at the contact points between the outer peripheral surface of the elastic grindstone and the outer peripheral surface of the electrodeposited grindstone
- the typical peripheral speed is preferably 6.5 to 13.0 m / s.
- the rotational directions of the elastic grindstone and the electrodeposited grindstone are set to the same direction, and the relative peripheral speed at the contact point between the outer peripheral surface of the elastic grindstone and the outer peripheral surface of the electrodeposited grindstone is 6 Since it is set to 5 to 13.0 m / s, the minimum required dressing accuracy can be obtained in the shortest dressing time.
- the elastic grindstone is an elastic body
- the peripheral speed is set to a high speed exceeding 13.0 m / s
- the outer peripheral surface of the elastic body swells due to the centrifugal force generated in the elastic grindstone.
- the outer peripheral surface of an elastic grindstone cannot be dressed accurately.
- the peripheral speed exceeds 13.0 m / s
- the processing heat becomes high and the outer peripheral surface of the elastic grindstone burns because of the dry type. Therefore, if the peripheral speed is low, the dressing accuracy tends to improve as the speed decreases.
- the peripheral speed is too low, the dressing time becomes longer and the original work (polishing) of the elastic grindstone is adversely affected.
- the elastic grindstone and the electrodeposition grindstone are configured in a disc shape, a columnar shape, or a cylindrical shape.
- the bond of the elastic grindstone is butyl rubber, natural rubber, or resin
- the abrasive grains of the elastic grindstone are diamond, cubic boron nitride (CBN), alumina (Al 2 O 3 ), Silicon carbide (SiC), pumice or garnet is preferred.
- a grindstone using butyl rubber or natural rubber as a bond, or a resin bond grindstone using a resin can be exemplified as an elastic grindstone.
- the electrodeposition grindstone is used as the dressing tool, it is possible to dress the outer peripheral surface of the elastic grindstone flatly and accurately by employing a dry dressing method.
- FIG. 1 is a plan view of a chamfering apparatus provided with an elastic grindstone dressed by the elastic grindstone dressing method of the present invention.
- FIG. 2 is an enlarged perspective view of a main part of the chamfering device.
- FIG. 3A is an explanatory diagram in which a grinding groove of a metal bond grindstone is disposed opposite to an edge of a glass plate.
- FIG. 3B is an explanatory diagram in which the edge of the glass plate is ground by a metal bond grindstone.
- FIG. 3C is an enlarged view of the edge of the glass plate that has been ground to form a chamfered surface.
- FIG. 4 is a side view of the metal bond grindstone.
- FIG. 5 is an overall perspective view of the elastic grindstone in a new state or after dressing.
- FIG. 5 is an overall perspective view of the elastic grindstone in a new state or after dressing.
- FIG. 6A is an enlarged side view of an essential part showing a state in which the electrodeposited grindstone is in contact with the outer peripheral surface of the elastic grindstone.
- FIG. 6B is an enlarged side view of a main part showing a state in which the outer peripheral surface of the elastic grindstone is dressed by the electrodeposition grindstone.
- FIG. 6C is an enlarged side view of an essential part of the elastic grindstone in which the outer peripheral surface of the elastic grindstone is dressed by the electrodeposition grindstone.
- FIG. 1 is a plan view of a chamfering apparatus 10 provided with elastic grindstones 26 and 28 dressed by the elastic grindstone dressing method of the present invention.
- the chamfering device 10 chamfers the edge portions 12A to 12D of a glass plate (plate-like body) 12 for a liquid crystal display having a thickness of 0.7 mm or less by using metal bond grindstones 18 and 20, and chamfering the chamfering device.
- the chamfered surface is polished by elastic grindstones 26 and 28 and is mirror-finished.
- a plate-shaped object applicable to the chamfering apparatus 10 it is not limited to the glass plate 12 for liquid crystal displays.
- other glass plates for FPD such as a glass plate for plasma display and a glass plate for LED display may be used, and general glass plates for solar cells, lighting, building materials, and mirrors may be used.
- the thickness of the plate-like body is not limited to 0.7 mm or less, and may be a thickness exceeding 0.7 mm.
- the chamfering device 10 includes a surface plate 14 that holds and holds a rectangular glass plate 12, a moving device 16 that reciprocates the surface plate 14 in the direction of arrows AB, and chamfers by grinding edges 12A to 12D of the glass plate 12.
- the motors 30 and 32 for rotating the elastic grindstones 26 and 28 at high speed the motors 30 and 32 for rotating the elastic grindstones 26 and 28 at high speed
- the elastic grindstones 26 and 28 are made of elastic butyl rubber, natural rubber, or resin such as silicone, polyurethane, phenol, epoxy, or polyimide.
- the abrasive grains of the elastic grindstones 26 and 28 are diamond or cubic crystals. Boron nitride (CBN), alumina (Al 2 O 3 ), silicon carbide (SiC), pumice, or garnet. A dressing method for the elastic grindstones 26 and 28 will be described later.
- the chamfering device 10 places one main surface of the glass plate 12 on the suction surface on the upper surface of the surface plate 14 in a state where the edge of the glass plate 12 having two main surfaces facing each other is exposed from the upper surface of the surface plate 14.
- the surface plate 14 is moved in the direction of arrow A by the moving device 16.
- the facing edges 12A and 12B of the glass plate 12 are ground by the metal bond grindstones 18 and 20 rotating in the direction facing the moving direction of the glass plate 12 to form a chamfered surface.
- the chamfered surface is polished by elastic grindstones 26 and 28 rotating in a direction opposite to the moving direction of the glass plate 12.
- the edge portions 12A and 12B of the glass plate 12 are chamfered and then mirror-finished.
- the coolant is sprayed from the nozzle 34 to the processing portion where the metal bond grindstone 18 and the edge 12A of the glass plate 12 are in contact with each other, and the metal bond grindstone 20 and the edge 12B of the glass plate 12
- the coolant is sprayed from the nozzle 36 to the processing portion that comes into contact.
- the coolant is sprayed from the nozzle 38 to the processing portion where the elastic grindstone 26 and the edge 12A of the glass plate 12 are in contact, and the elastic grindstone 28 and the edge 12B of the glass plate 12 are in contact with each other. Cooling liquid is sprayed from the nozzle 40 to the processed portion.
- the processed portion is cooled by the cooling liquid, the occurrence of burning, chipping or the like occurring in the edge portions 12A and 12B of the glass plate 12 is reduced. Further, chipping generated on the boundary surfaces between the two main surfaces of the glass plate 12 and the end surfaces of the edges 12A and 12B is also reduced.
- the cooling liquid include pure water, grinding oil, and a mixture thereof.
- a metal bond grindstone 18 and an elastic grindstone 26 are disposed to face the edge 12 ⁇ / b> A in order to simultaneously chamfer and mirror the pair of facing edges 12 ⁇ / b> A and 12 ⁇ / b> B of the glass plate 12.
- the metal bond grindstone 20 and the elastic grindstone 28 are disposed to face the edge 12B.
- the elastic grindstones 26 and 28 are arranged on the downstream side in the transport direction of the glass plate 12 with respect to the metal bond grindstones 18 and 20.
- the metal bond grindstone 18 is rotated clockwise by the motor 22, and the metal bond grindstone 20 is rotated counterclockwise by the motor 24.
- the elastic grindstone 26 is rotated clockwise by the motor 30, and the elastic grindstone 28 is rotated counterclockwise by the motor 32.
- the rotational speed of these grindstones 18, 20, 26, 28 is preferably set to 3000 rpm or more.
- FIG. 1 shows the chamfering apparatus 10 that processes the edges 12A and 12B with the fixed metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28 while moving the glass plate 12 in the arrow A direction.
- the present invention is not limited to this.
- a chamfering device that fixes the glass plate 12 and moves the metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28 along the edges 12A and 12B of the glass plate 12 may be used.
- it may be a chamfering device that moves the metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28 and the glass plate 12 along the edge portions 12A and 12B of the glass plate 12 toward each other.
- the other opposing edges 12C and 12D of the glass plate 12 are processed by a metal bond grindstone and an elastic grindstone (not shown) arranged at the subsequent stage of the metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28 in FIG. May be.
- the glass plate 12 is moved in the B direction by the surface plate 14 to return to the original position, and then the glass plate 12 is moved by the surface plate 14 to 90 degrees with the perpendicular in the main surface direction of the glass plate 12 as an axis.
- the metal bond grindstones 18 and 20 and the elastic grindstone 26 whose intervals are changed in accordance with the lengths of the edges 12A and 12B of the glass plate 12 while moving the glass plate 12 in the A direction by the surface plate 14. , 28 may process the edges 12C, 12D.
- FIG. 2 is an enlarged perspective view of a main part of the chamfering device 10, in which a metal bond grindstone 18 and an elastic grindstone 26 are illustrated.
- the metal bond grindstone 18 and the elastic grindstone 26 are arranged to face the end surface 12 ⁇ / b> E of the glass plate 12.
- the end surface 12E is a surface in a direction orthogonal to the main surface 12F of the glass plate 12, and is a surface before processing.
- the boundary surface between the end surface 12E and the main surface 12F and the portion including the end surface 12E are referred to as edge portions 12A to 12D, and the edge portions 12A to 12D are processed by the metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28.
- the rotation axes of the metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28 may be inclined at a predetermined angle with respect to a vertical line standing on the main surface 12F of the glass plate 12.
- the metal bond grindstones 18 and 20 and the elastic grindstones 26 and 28 are rotationally driven at the same time, and when the glass plate 12 is moved by the moving device 16 of FIG. 1, the opposing edges 12A and 12B of the glass plate 12 are metal bond grindstones 18 and 20. And the elastic grindstones 26 and 28 are simultaneously processed.
- 3A and 3B are enlarged cross-sectional views of the main part of the outer peripheral surface of the metal bond grindstones 18 and 20.
- FIG. since the metal bond grindstones 18 and 20 are the same structure, the metal bond grindstone 18 is demonstrated here and description of the metal bond grindstone 20 is abbreviate
- annular grooves 42 On the outer peripheral surface of the metal bond grindstone 18, a plurality of annular grooves 42, which are grinding grooves, are formed in the horizontal direction (perpendicular to the rotation axis indicated by the one-dot chain line in FIG. 4). As shown in a side view of the metal bond grindstone 18 in FIG. 4, a plurality of the annular grooves 42 are provided in parallel in the vertical direction.
- the cross-sectional shape of the annular groove 42 in the thickness direction of the metal bond grindstone 18 is not limited to the U shape shown in FIGS. 3A and 3B, and may be a V shape or a concave shape.
- the number of the annular grooves 42 may be one, it is preferable to provide a plurality of annular grooves 42 at predetermined intervals in the thickness direction of the metal bond grindstone 18 as shown in FIG. Since a plurality of the annular grooves 42 are provided in the metal bond grindstone 18, when the annular groove 42 in use reaches the end of its life, the metal bond grindstone 18 is moved in the vertical direction in pitch units of the annular grooves 42 (not shown).
- the shape of the annular groove 42 may be a shape having a single radius of curvature, and includes a portion where the end surface 12E is ground and a boundary surface 12G between the end surface 12E ′ and the main surface 12F which has been ground as shown in FIG. 3C.
- the part to be ground may have a shape having different radii of curvature.
- the annular groove 42 of the metal bond grindstone 18 is opposed to the edge 12A of the glass plate 12 in the horizontal direction. From this state, the metal bond grindstone 18 is directed horizontally toward the edge 12A. Sent.
- the metal bond grindstone 18 is fed toward the edge portion 12A by the grinding allowance as shown in FIG. 3B.
- the edge 12A is ground by the annular groove 42, and a chamfered surface is formed on the edge 12A.
- the metal bond grindstone 18 is fed toward the edge portion 12A so that the central portion of the end surface 12E in the thickness direction of the glass plate 12 contacts the deepest portion of the annular groove 42. .
- FIG. 5 is an overall perspective view showing the elastic grindstone 26 in a new state or after dressing.
- the elastic grindstone 26 is a grindstone that has a disk shape, a columnar shape, or a cylindrical shape, and has a flat outer peripheral surface that is a polishing surface.
- the elastic grindstone 26 is a grindstone in which abrasive grains are held by a thermosetting resin bond.
- the bond include butyl rubber, natural rubber, or resins such as silicone, polyurethane, phenol, epoxy, or polyimide.
- the abrasive grains include diamond, cubic boron nitride (CBN), alumina (Al 2 O 3 ), silicon carbide (SiC), pumice, and garnet.
- the grain size of the abrasive grains of the elastic grindstone 26 is preferably 200 to 1500 (JIS R6001: 1998) when the abrasive grains are diamond, for example.
- the flat outer peripheral surface that comes into contact with the end surface 12E ′ (see FIG. 3C) of the edge 12A of the glass plate 12 is worn with the passage of processing time.
- a concave annular groove 44 in which the shape of the edge 12A of the glass plate 12 is transferred to the flat outer peripheral surface 43 is formed.
- the annular groove 44 is deepened, not only the edge 12A of the glass plate 12 but also the main surface 12F of the glass plate 12 is polished. Therefore, when the annular groove 44 reaches a predetermined depth, the outer peripheral surface 43 of the elastic grindstone 26 is obtained. Is ground and returned to its original flat shape.
- the outer peripheral surface 43 of the elastic grindstone 26 is dressed.
- the flat shape means that the shape of the surface when the elastic grindstone 26 is viewed from the direction orthogonal to the central axis 26A is flat as shown in FIG. 6C.
- an electrodeposition grindstone 46 configured in a disk shape, a columnar shape, or a cylindrical shape shown in FIGS. 6A and 6B is used as a dressing tool.
- 6A is an enlarged side view of a main part showing a state in which the flat outer peripheral surface of the electrodeposition grindstone 46 is in contact with the outer peripheral surface 43 of the elastic grindstone 26
- FIG. 6B is an outer peripheral surface 43 of the elastic grindstone 26 by the electrodeposition grindstone 46.
- FIG. 6C is an enlarged side view of the main part of the elastic grindstone 26 in which the outer peripheral surface 43 of the elastic grindstone 26 is dressed by the electrodeposition grindstone 46 and returned to a flat shape. It is.
- the outer peripheral surface 43 of the elastic grindstone 26 is dressed using the electrodeposition grindstone 46 that can be dressed without clogging even in the dry dressing method.
- the elastic grindstone 26 and the electrodeposition grindstone 46 which are formed with an annular groove 44 and need dressing, are rotated around the central axes 26A, 46A, respectively, as shown in FIG. 6B.
- the flat outer peripheral surface of the electrodeposition grindstone 46 and the outer peripheral surface 43 of the elastic grindstone 26 are relatively pressed.
- the outer peripheral surface 43 of the elastic grindstone 26 is worn and crushed by the electrodeposition grindstone 46, and the outer peripheral surface 43 is ground into a flat shape and dressed as shown in FIG. 6C.
- the central axes 26A and 46A of the elastic grindstone 26 and the electrodeposition grindstone 46 are set in parallel.
- the electrodeposition grindstone 46 is a base member of the electrodeposition grindstone 46 made of diamond or CBN (Cubic Boron Nitride) on the outer periphery of a disk-shaped, columnar, or cylindrical metal base.
- the electrodeposition grindstone 46 has a feature that the protruding amount of abrasive grains is larger than that of a metal bond grindstone or resin bond grindstone, and sharpness is sharper than these grindstones.
- the dressing method using the electrodeposition grindstone 46 is merely a matter of installing a small dust collector that sucks and collects the pulverized material scattered during the dressing at the dressing site. Water treatment facilities are not required.
- the relative peripheral speed at the contact portion between the outer peripheral surface 43 of the elastic grindstone 26 and the outer peripheral surface of the electrodeposited grindstone 46 is set to 6.5 to 13.0 m / s.
- the rotational directions of the elastic grindstone 26 and the electrodeposited grindstone 46 are set in the same direction as shown in FIGS. 6A and 6B, respectively, and the outer peripheral surface 43 of the elastic grindstone 26 and the electrodeposition grindstone 46 are set. Since the relative peripheral speed at the contact point with the outer peripheral surface is set to 6.5 to 13.0 m / s, the minimum required dressing accuracy can be obtained in the shortest dressing time.
- the elastic grindstone 26 is an elastic body
- the peripheral speed is set to a high speed exceeding 13.0 m / s
- the outer peripheral surface 43 of the elastic body swells due to the centrifugal force generated in the elastic grindstone 26. That is, the elastic grindstone 26 is elastically deformed by centrifugal force. For this reason, the outer peripheral surface 43 of the elastic grindstone 26 cannot be dressed with high accuracy (flat).
- the peripheral speed exceeds 13.0 m / s, there is a problem that the outer surface 43 of the elastic grindstone 26 is burned because the processing heat becomes high because of the dry type. Therefore, if the peripheral speed is low, the dressing accuracy tends to improve as the speed decreases.
- the peripheral speed is made too low, the dressing time becomes longer and the original work (polishing) of the elastic grindstone 26 is adversely affected.
- the dressing time for obtaining the required minimum dressing accuracy was verified with an actual machine, it was confirmed that it was preferable to set the lower limit value of the peripheral speed to 6.5 m / s. Therefore, by setting the peripheral speed to 6.5 to 13.0 m / s, the minimum necessary dressing accuracy can be obtained in the shortest dressing time.
- SYMBOLS 10 ... Chamfering apparatus, 12 ... Glass plate, 12A-12D ... Edge of glass plate, 12E, 12E '... End surface of glass plate, 12F ... Main surface of glass plate, 12G ... Boundary between end surface and main surface of glass plate Surface 14, surface plate 16, moving device 18, 20 metal bond grindstone 22, 24 motor 24, elastic wheel 30, 32, motor 32, 36, 38, 40 nozzle 42 ... annular groove, 43 ... outer peripheral surface, 44 ... annular groove, 46 ... electrodeposition grindstone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
本出願は、2012年10月10日出願の日本特許出願2012-224921に基づくものであり、その内容はここに参照として取り込まれる。
Claims (4)
- 研磨面である外周面が扁平な弾性砥石をドレッシングする弾性砥石のドレッシング方法において、
前記外周面に環状溝が形成された前記弾性砥石と電着砥石とを各々の中心軸を中心に互いに回転させて、前記電着砥石の外周面と前記弾性砥石の前記外周面とを相対的に押圧することにより、前記弾性砥石の前記外周面を前記電着砥石によって扁平形状に研削加工してドレッシングする弾性砥石のドレッシング方法。 - 研磨面である外周面を、板状体の縁部に押し当てるとともに、その中心軸を中心に回転させて前記縁部を研磨加工する弾性砥石をドレッシングする弾性砥石のドレッシング方法において、
前記弾性砥石の前記外周面に前記板状体の前記縁部の形状が転写されて形成された環状溝が所定の深さに到達すると、前記弾性砥石と電着砥石とを各々の中心軸を中心に互いに回転させて、前記電着砥石の外周面と前記弾性砥石の前記外周面とを相対的に押圧することにより、前記弾性砥石の前記外周面を前記電着砥石によって扁平形状に研削加工してドレッシングする弾性砥石のドレッシング方法。 - 前記弾性砥石の回転方向と前記電着砥石の回転方向とを同方向にさせ、前記弾性砥石の前記外周面と前記電着砥石の前記外周面との接触箇所における相対的な周速が6.5~13.0m/sである請求項1又は2に記載の弾性砥石のドレッシング方法。
- 前記弾性砥石のボンドは、ブチルゴム、天然ゴム、又は樹脂であり、
前記弾性砥石の砥粒は、ダイヤモンド、立方晶窒化ホウ素(CBN)、アルミナ(Al2O3)、炭化ケイ素(SiC)、軽石、又はガーネットである請求項1から3のいずれか1項に記載の弾性砥石のドレッシング方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014540832A JPWO2014057894A1 (ja) | 2012-10-10 | 2013-10-04 | 弾性砥石のドレッシング方法 |
KR1020157009275A KR20150065722A (ko) | 2012-10-10 | 2013-10-04 | 탄성 지석의 드레싱 방법 |
CN201380053012.4A CN104703758A (zh) | 2012-10-10 | 2013-10-04 | 弹性砂轮的修整方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012224921 | 2012-10-10 | ||
JP2012-224921 | 2012-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014057894A1 true WO2014057894A1 (ja) | 2014-04-17 |
Family
ID=50477361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/077160 WO2014057894A1 (ja) | 2012-10-10 | 2013-10-04 | 弾性砥石のドレッシング方法 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPWO2014057894A1 (ja) |
KR (1) | KR20150065722A (ja) |
CN (2) | CN104703758A (ja) |
TW (1) | TWI577502B (ja) |
WO (1) | WO2014057894A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110524314A (zh) * | 2019-07-18 | 2019-12-03 | 庆安集团有限公司 | 一种弹性材料的研磨方法 |
WO2023096758A1 (en) * | 2021-11-23 | 2023-06-01 | Corning Incorporated | Apparatuses and methods for finishing the edges of glass sheets |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6967386B2 (ja) * | 2017-07-12 | 2021-11-17 | 株式会社ディスコ | ドレッシング方法 |
CN114770286A (zh) * | 2022-06-01 | 2022-07-22 | 蓝宝精玺新材料技术(重庆)有限责任公司 | 一种光学产品加工方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61257772A (ja) * | 1986-05-08 | 1986-11-15 | Toyoda Mach Works Ltd | 砥石ツル−イング方法 |
JPS62173170A (ja) * | 1986-01-23 | 1987-07-30 | Toyoda Mach Works Ltd | 砥石車のツル−イング装置 |
JPS62213961A (ja) * | 1986-03-14 | 1987-09-19 | Genichi Sato | 砥石の整形方法およびその整形用工具 |
JPH04101772A (ja) * | 1990-08-11 | 1992-04-03 | Nippei Toyama Corp | 研削盤の砥石修正装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4226055A (en) * | 1979-06-08 | 1980-10-07 | General Electric Company | Dressing and conditioning resin-bonded diamond grinding wheel |
KR20090063804A (ko) * | 2007-12-14 | 2009-06-18 | 주식회사 실트론 | 연삭 휠 트루잉 공구 및 그 제작방법, 이를 이용한 트루잉장치, 연삭 휠의 제작방법, 및 웨이퍼 에지 연삭장치 |
DE102008004848A1 (de) * | 2008-01-17 | 2009-07-23 | Vollmer Werke Maschinenfabrik Gmbh | Vorrichtung und Verfahren zum Abrichten einer Bearbeitungsscheibe mittels eines rotierenden Abrichtwerkzeugs sowie Werkzeugmaschine mit einer derartigen Vorrichtung |
EP2337654A4 (en) * | 2008-08-15 | 2014-10-15 | 3M Innovative Properties Co | ABRASIVE WHEEL FINISHING MACHINE |
JP5573459B2 (ja) * | 2010-07-27 | 2014-08-20 | 株式会社ジェイテクト | 研削方法および研削盤 |
JP5693144B2 (ja) * | 2010-10-27 | 2015-04-01 | 豊田バンモップス株式会社 | ロータリドレッサ |
KR101399905B1 (ko) * | 2012-02-10 | 2014-06-27 | 문성욱 | 판형 패널의 면취휠의 드레싱방법, 이를 이용한 판형 패널의 면취방법 및 이에 사용되는 드레싱 휠 |
-
2013
- 2013-10-04 JP JP2014540832A patent/JPWO2014057894A1/ja not_active Withdrawn
- 2013-10-04 WO PCT/JP2013/077160 patent/WO2014057894A1/ja active Application Filing
- 2013-10-04 CN CN201380053012.4A patent/CN104703758A/zh active Pending
- 2013-10-04 KR KR1020157009275A patent/KR20150065722A/ko not_active Application Discontinuation
- 2013-10-04 CN CN201610607809.XA patent/CN106217259B/zh active Active
- 2013-10-09 TW TW102136609A patent/TWI577502B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62173170A (ja) * | 1986-01-23 | 1987-07-30 | Toyoda Mach Works Ltd | 砥石車のツル−イング装置 |
JPS62213961A (ja) * | 1986-03-14 | 1987-09-19 | Genichi Sato | 砥石の整形方法およびその整形用工具 |
JPS61257772A (ja) * | 1986-05-08 | 1986-11-15 | Toyoda Mach Works Ltd | 砥石ツル−イング方法 |
JPH04101772A (ja) * | 1990-08-11 | 1992-04-03 | Nippei Toyama Corp | 研削盤の砥石修正装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110524314A (zh) * | 2019-07-18 | 2019-12-03 | 庆安集团有限公司 | 一种弹性材料的研磨方法 |
CN110524314B (zh) * | 2019-07-18 | 2021-04-23 | 庆安集团有限公司 | 一种橡胶弹性材料的研磨方法 |
WO2023096758A1 (en) * | 2021-11-23 | 2023-06-01 | Corning Incorporated | Apparatuses and methods for finishing the edges of glass sheets |
Also Published As
Publication number | Publication date |
---|---|
JPWO2014057894A1 (ja) | 2016-09-05 |
CN106217259B (zh) | 2019-12-17 |
CN104703758A (zh) | 2015-06-10 |
CN106217259A (zh) | 2016-12-14 |
TW201420271A (zh) | 2014-06-01 |
KR20150065722A (ko) | 2015-06-15 |
TWI577502B (zh) | 2017-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6238117B2 (ja) | 板状体の加工方法 | |
WO2013065490A1 (ja) | 板状物の加工装置及び板状物の加工方法 | |
KR102252945B1 (ko) | 워크의 평면 연삭 방법 | |
WO2014057894A1 (ja) | 弾性砥石のドレッシング方法 | |
TW201446427A (zh) | 抛光墊修整器及其製造方法、抛光墊修整裝置及抛光系統 | |
TWI679085B (zh) | 玻璃板之去角方法、及玻璃板之製造方法 | |
TW200305480A (en) | Backside polishing method of semiconductor wafer | |
TWI684494B (zh) | 研磨用磨石 | |
TW201805107A (zh) | 玻璃基板及玻璃基板的製造方法 | |
KR20140123906A (ko) | 고경도 취성 재료의 연삭용 지석 | |
TW201819112A (zh) | 化學機械研磨墊修整總成 | |
KR20150073214A (ko) | 연마물의 제조 방법 | |
KR20160000406A (ko) | 스크라이빙 휠 및 그의 제조 방법 | |
CN110977798A (zh) | 磨削磨轮的制造方法 | |
TWI510332B (zh) | 拋光墊修整器、拋光墊修整裝置及拋光系統 | |
KR200444137Y1 (ko) | 다이아몬드 시트를 이용한 연마휠 | |
TWI334374B (ja) | ||
KR20160133964A (ko) | 고경질 자재 연마용 휠 및 그 제조방법 | |
CN106313346B (zh) | 刀轮及其制造方法 | |
JP6736151B2 (ja) | カッターホイール並びにその製造方法 | |
KR101506875B1 (ko) | 드레싱 유닛 | |
JP5944581B2 (ja) | 半導体ウエハ研削装置、半導体ウエハの製造方法、及び半導体ウエハの研削方法 | |
KR101572094B1 (ko) | 연마 휠 드레싱 장치 | |
JP2023072315A (ja) | ガラス板の製造方法 | |
JP2015056409A (ja) | 薄板基板の研削加工方法およびそれに用いる研削加工装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13846180 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014540832 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20157009275 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13846180 Country of ref document: EP Kind code of ref document: A1 |