WO2023176451A1 - Tool assembly, processing device, and glass plate production method - Google Patents

Tool assembly, processing device, and glass plate production method Download PDF

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Publication number
WO2023176451A1
WO2023176451A1 PCT/JP2023/007561 JP2023007561W WO2023176451A1 WO 2023176451 A1 WO2023176451 A1 WO 2023176451A1 JP 2023007561 W JP2023007561 W JP 2023007561W WO 2023176451 A1 WO2023176451 A1 WO 2023176451A1
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WO
WIPO (PCT)
Prior art keywords
processing
end surface
tool
processing tool
tool assembly
Prior art date
Application number
PCT/JP2023/007561
Other languages
French (fr)
Japanese (ja)
Inventor
大生 松永
愛信 星野
翔 北川
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日本電気硝子株式会社
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Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Publication of WO2023176451A1 publication Critical patent/WO2023176451A1/en

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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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means

Definitions

  • the present invention relates to a tool assembly for processing a glass plate, a processing apparatus, and a method for manufacturing a glass plate.
  • Patent Document 1 discloses an example of a processing device that includes a rotatable processing tool (grindstone), a holder that holds the processing tool, and a spindle as a rotating shaft that rotates the processing tool. has been done.
  • the holder of the processing device has a flange portion that supports one end of the processing tool in the axial direction, and a hole portion into which the spindle fits.
  • the holder is configured to rotate together with the processing tool by being driven by the spindle while supporting the processing tool with the flange portion.
  • a hole may be formed at one end of the processing tool or flange to adjust the balance during rotation.
  • the processing tool is attached to the holder so that the hole in the processing tool faces the flange, and the hole in the flange faces the processing tool.
  • the hole in the processing tool is closed by the flange portion, and the hole in the flange portion is closed by the processing tool.
  • the hole for balance adjustment is blocked by the flange of the processing tool or holder, but due to the influence of vibrations during processing, the flange and one end of the processing tool
  • liquid such as grinding fluid may enter the hole and accumulate in the hole. If liquid accumulates in the hole, the rotational balance of the processing device will be disrupted, vibration will increase, and there is a risk that the processing accuracy of the glass plate will deteriorate.
  • the present invention has been made in view of the above circumstances, and its technical problem is to prevent deterioration of the rotational balance of a processing device.
  • the present invention is intended to solve the above problems, and provides a tool assembly including a rotatable processing tool for processing the end surface of a glass plate, and a rotatable holder for holding the processing tool. It is characterized by comprising a space provided in the holder and/or the processing tool for adjusting rotational balance, and a seal member for preventing liquid from entering the space.
  • the space portion may be provided inside the processing device. According to this configuration, it is possible to efficiently balance the rotation of the processing device. Even in such a case, the sealing member can prevent liquid from accumulating in the space.
  • the processing tool has a first end surface and a second end surface located on the opposite side of the first end surface, and the holder includes a support part that supports the first end surface.
  • the space portion may be formed in the first end surface.
  • the processing tool has a through hole formed from the first end surface to the second end surface, and the seal member is arranged on the second end surface so as to close the through hole. may be provided.
  • the seal member prevents liquid from entering the through hole, thereby preventing liquid from entering the space through the through hole.
  • the sealing member may include a lid that closes the through hole, and a seal that seals between the lid and the second end surface of the processing tool.
  • the holder may have a cylindrical part provided in the center of the support part, and the lid may have a connecting part connected to the cylindrical part.
  • the seal member can be fixed to the holder via the connecting portion.
  • the lid body may be made of resin. According to this configuration, it is possible to reduce the weight of the processing device.
  • a processing device is intended to solve the above problems, and is characterized by comprising the above tool assembly and a rotating shaft that rotates the tool assembly. According to this configuration, by preventing liquid from accumulating in the space by the sealing member, deterioration of the rotational balance of the processing device can be reliably prevented.
  • a method for manufacturing a glass plate according to the present invention is intended to solve the above-mentioned problems, and is characterized by comprising a step of processing an end face of a glass plate using the processing apparatus described above. According to this configuration, it is possible to prevent deterioration of the rotational balance of the processing device and to manufacture a glass plate with high processing accuracy.
  • FIG. 3 is a cross-sectional view of the processing tool.
  • FIG. 3 is a cross-sectional view of the holder. It is a side view of a sealing member. It is a top view of a sealing member. It is a perspective view showing a manufacturing method of a glass plate. It is a sectional view of a processing device concerning a second embodiment. It is a top view of a sealing member.
  • FIG. 1 to 6 show a first embodiment of a tool assembly, a processing device, and a method for manufacturing a glass plate according to the present invention.
  • the processing device 1 includes a rotatable processing tool 2, a rotatable holder 3 that holds the processing tool 2, and a rotating shaft that rotates the processing tool 2 via the holder 3. It includes a spindle 4, a first fixture 5a that fixes the processing tool 2 to the holder 3, a second fixture 5b that fixes the holder 3 to the spindle 4, and a seal member 6 that is attached to the processing tool 2. .
  • the holder 3 holding the processing tool 2 will also be referred to as a tool assembly.
  • the processing tool 2 includes a processing section 7 (grindstone section) for processing the glass plate G, and a main body section 8 that supports the processing section 7.
  • an electrodeposited grindstone formed by hardening diamond abrasive grains with a metal electrodeposition bond, or a metal bonded grindstone formed by hardening abrasive grains with a metallic binder is suitably used.
  • the main body portion 8 is composed of, for example, a cylindrical member made of metal.
  • a processed portion 7 is integrally formed on the outer peripheral surface of the main body portion 8 .
  • the main body part 8 has a first end surface 8a formed at one end in the direction of the cylindrical core, a second end surface 8b located on the opposite side of the first end surface 8a in the direction of the cylindrical core, and a part of the holder 3 inserted therethrough. It has a first through-hole 8c, and a plurality of second through-holes 8d into which the first fixture 5a is inserted.
  • the main body portion 8 is supported by the holder 3 such that the first end surface 8a faces downward and the second end surface 8b faces upward.
  • the first end surface 8a of the main body portion 8 has a first recess 9 in its center.
  • the first recess 9 has a bottom surface 9a and a side wall surface 9b.
  • the bottom surface 9a has a circular shape in plan view.
  • a first through hole 8c is located in the bottom surface 9a.
  • the bottom surface 9a of the first recess 9 has a space 9c at a position radially away from the center.
  • the space 9c is formed by a hole (for example, a circular hole) formed by a tool such as a drill.
  • the present invention is not limited to this, and the space portion 9c may be configured by forming a recessed portion in the bottom surface 9a.
  • one space 9c formed in the bottom surface 9a is illustrated, but a plurality of spaces 9c may be formed in the bottom surface 9a.
  • the side wall surface 9b of the first recess 9 is circular in plan view so as to surround the peripheral edge of the bottom surface 9a.
  • the second end surface 8b of the main body portion 8 has a second recess 10 at its center.
  • the second recess 10 has a bottom surface 10a that is circular in plan view and a side wall surface 10b that is circular in plan view and surrounds the bottom surface 10a.
  • the first through hole 8c is a hole that passes through the center of the main body 8 from the first end surface 8a to the second end surface 8b. Specifically, the first through hole 8c penetrates from the bottom surface 9a of the first recess 9 of the first end surface 8a to the bottom surface 10a of the second recess 10 of the second end surface 8b.
  • the second through hole 8d is formed at a position radially away from the center of the main body portion 8. Each second through hole 8d has a holding part 11 that holds a part of the first fixture 5a.
  • the holder 3 has a cylindrical portion 12 and a flange portion 13 formed at one end of the cylindrical portion 12.
  • the cylindrical portion 12 has a cylindrical shape, for example, and is integrally formed at the center of the flange portion 13.
  • the cylindrical portion 12 has an internal space that can accommodate the second fixture 5b.
  • a female thread 12a is formed on the inner surface of the cylindrical portion 12, with which a portion of the seal member 6 engages (see FIG. 3).
  • the outer diameter of the cylindrical portion 12 is smaller than the inner diameter of the first through hole 8c of the processing tool 2.
  • the cylindrical portion 12 is inserted into the first through hole 8c of the processing tool 2 so as to be concentric with the first through hole 8c. With this configuration, a gap S is formed between the outer surface of the cylindrical portion 12 and the inner surface of the first through hole 8c (see FIG. 1).
  • the flange portion 13 functions as a support portion that supports the processing tool 2.
  • the flange portion 13 is configured in a disk shape, but is not limited to this shape.
  • the flange portion 13 has a first surface 13a formed at the end in the thickness direction, a second surface 13b located on the opposite side to the first surface 13a, and a surface formed between the first surface 13a and the second surface 13a. and an end surface 13c that connects the surface 13b.
  • first surface 13a faces upward, and the second surface 13b faces downward.
  • the first surface 13a is in contact with the bottom surface 9a of the first recess 9 in the processing tool 2.
  • a cylindrical portion 12 is formed in the center of the first surface 13a.
  • the flange portion 13 includes a shaft insertion hole 14 into which the spindle 4 is inserted, a support surface 15 that contacts the first end surface 8a of the processing tool 2, and a fixing hole 16 into which a part of the first fixture 5a is fitted. Be prepared.
  • the shaft insertion hole 14 functions as a housing portion that accommodates a portion of the spindle 4 therein.
  • the shaft insertion hole 14 is formed at the center of the flange portion 13.
  • the shaft insertion hole 14 communicates with the inside of the cylindrical portion 12 .
  • the shaft insertion hole 14 has a tapered inner surface (contact surface) 14 a that contacts a portion of the spindle 4 .
  • the inner surface 14a is configured such that its inner diameter decreases from the second surface 13b side of the flange portion 13 toward the first surface 13a side.
  • the inner diameter of the small diameter end of the shaft insertion hole 14 is smaller than the inner diameter of the cylindrical portion 12. With this configuration, a holding part 21 that holds a part of the second fixture 5b is formed between the shaft insertion hole 14 and the cylindrical part 12.
  • the support surface 15 is formed on the first surface 13a of the flange portion 13.
  • the support surface 15 supports the main body 8 by contacting the bottom surface 9a of the first recess 9 in the main body 8 of the processing tool 2.
  • the space 9c provided in the bottom surface 9a of the first recess 9 is covered with the support surface 15. Therefore, the tool assembly has a space 9c inside thereof.
  • the fixing hole 16 is formed in the first surface 13a of the flange portion 13 at a position radially away from the center.
  • the fixing hole 16 is a screw hole formed from the first surface 13a to the middle part of the flange portion 13 in the thickness direction, and is formed at a position corresponding to the holding portion 11 of the processing tool 2.
  • the spindle 4 has a shaft portion 4a configured in a tapered shape.
  • the shaft portion 4a has a tapered surface whose outer diameter decreases as it moves from the proximal end to the distal end.
  • a fixing hole 17 into which a part of the second fixture 5b fits is formed in the end surface of the shaft portion 4a.
  • the fixing hole 17 is constituted by, for example, a screw hole.
  • the spindle 4 can rotate together with the processing tool 2 and the holder 3 as power is transmitted from a drive device (not shown) such as a motor.
  • the first fixture 5a is composed of a bolt (for example, a hexagon socket head bolt). As shown in FIG. 1, the shaft portion 18a of the first fixture 5a is fitted into the fixing hole 16 of the holder 3. The head 18b of the first fixture 5a is supported by the holding part 11 of the second through hole 8d.
  • a bolt for example, a hexagon socket head bolt
  • the second fixture 5b includes a bolt 19 (for example, a hexagon socket head bolt) and a holding plate 20.
  • the shaft portion 19a of the bolt 19 passes through the holding plate 20 and is fitted into the fixing hole 17 of the spindle 4.
  • the head 19b of the bolt 19 is supported by a holding plate 20.
  • the holding plate 20 is configured in a disk shape, and has a hole 20a in the center thereof, into which the shaft portion 19a of the bolt 19 is inserted. As shown in FIG. 1, the holding plate 20 is supported by a holding part 21 formed between the cylindrical part 12 of the holder 3 and the shaft insertion hole 14.
  • the sealing member 6 allows liquid such as grinding liquid or polishing liquid to pass through the gap S between the first through hole 8c of the processing tool 2 and the cylindrical part 12 of the holder 3 and the first surface 13a of the flange part 13. This is to prevent the liquid from entering the space 9c.
  • the seal member 6 is fixed to the second end surface 8b of the processing tool 2 so as to close the first through hole 8c of the processing tool 2.
  • the seal member 6 includes a lid body 22 and a seal body 23 attached to the lid body 22.
  • the lid 22 is made of resin, but the material of the lid 22 is not limited to this embodiment.
  • the lid body 22 includes a lid portion 24 that closes the first through hole 8c and the second recess 10 of the processing tool 2, and a connecting portion 25 that is connected to the cylindrical portion 12 of the holder 3.
  • the lid portion 24 is configured in a disc shape, but is not limited to this shape.
  • the lid part 24 has a first surface 24a formed at one end in the thickness direction, a second surface 24b located on the opposite side of the first surface 24a, and a first surface 24a and a second surface. 24b.
  • the first surface 24a of the lid 24 has an operating portion 26 for operating the lid 22.
  • the operating portion 26 has a circular recess 26a formed at the center of the first surface 24a, and a protrusion 26b formed at the center of the recess 26a.
  • the second surface 24b of the lid portion 24 is configured integrally with the connecting portion 25.
  • the second surface 24b is arranged to face downward, that is, to face the bottom surface 10a of the second recess 10 of the processing tool 2.
  • the end surface 24c of the lid portion 24 has a groove portion 27 as a holding portion that holds the seal body 23. As shown in FIG. 5, the groove portion 27 is formed in an annular shape along the circumferential direction of the end surface 24c.
  • the connecting portion 25 includes a screw shaft 25a configured concentrically with the lid portion 24.
  • the screw shaft 25a is fitted into a female thread 12a formed in the cylindrical portion 12 of the holder 3.
  • the lid body 22 is detachably attached to the holder 3.
  • the connecting part 25 of the lid 22 is arranged concentrically with the tip of the cylindrical part 12 of the holder 3, and the protrusion of the operating part 26
  • the screw shaft 25a is screwed into the female thread 12a of the cylindrical portion 12 by the operator grasping and rotating the screw shaft 26b.
  • the screw shaft 25a is extracted from the cylindrical portion 12 by rotating the protrusion 26b of the operating portion 26.
  • the seal body 23 is composed of, for example, an annular elastic member (O-ring), but the configuration of the seal body 23 is not limited to this embodiment.
  • the seal body 23 is fitted into the groove 27 of the lid 24 so that a portion thereof protrudes from the groove 27.
  • the sealing body 23 is in close contact with the side wall surface 10b of the second recess 10 when the lid 24 of the lid 22 is inserted into the second recess 10 on the second end surface 8b of the processing tool 2. are doing.
  • the seal body 23 is sandwiched between the side wall surface 10b of the second end surface 8b of the processing tool 2 and the end surface 24c of the lid section 24, thereby sealing between the end surface 24c of the lid section 24 and the side wall surface 10b of the processing tool 2. are doing.
  • This method includes a processing step of processing an end face of a glass plate G formed into a rectangular shape, for example.
  • the processing steps include a first processing step in which the first processing device 1A and the first supply device 28 perform a grinding process on the glass plate G, and a second processing device 1B and the second supply device 29 perform a polishing process on the glass plate G. and a second processing step.
  • the first processing device 1A and the second processing device 1B have the same configuration as the processing device 1 described above. The only difference between the first processing device 1A and the second processing device 1B is the configuration (material, etc.) of the processing section 7.
  • the end surface of the glass plate G is processed by relatively moving the glass plate G, each processing device 1A, 1B, and each supply device 28, 29.
  • the glass plate G is processed while being transported along the transport direction X by a transport device (not shown) without moving each processing device 1A, 1B and each supply device 28, 29.
  • the present invention is not limited to this example.
  • the glass plate G may be processed by moving each processing device 1A, 1B and each supply device 28, 29 while supporting the glass plate G by a surface plate without moving it.
  • the end face of the glass plate G is ground by the processing tool 2 of the first processing device 1A rotating around the rotation axis CR1 while the grinding fluid L1 is supplied to the processing tool 2 by the first supply device 28.
  • the first supply device 28 has a nozzle 28a arranged near the first processing device 1A.
  • water is used as the grinding liquid L1 spouted from the nozzle 28a.
  • the second processing device 1B is arranged downstream of the first processing device 1A in the transport direction X of the glass plate G.
  • the end surface of the glass plate G is polished by the processing tool 2 of the second processing device 1B that rotates around the rotation axis CR2 while supplying the polishing liquid L2 to the processing tool 2 by the second supply device 29.
  • the second supply device 29 has a nozzle 29a arranged near the second processing device 1B. For example, water is used as the polishing liquid L2 spouted from the nozzle 29a.
  • droplets of liquid such as grinding fluid and polishing fluid may reach the upper part of the processing tool 2.
  • the sealing member 6 since the upper part of the processing tool 2 is sealed by the sealing member 6, it is possible to prevent liquid from entering the space 9c through the second recess 10 and the first through hole 8c of the processing tool 2. Thereby, it is possible to prevent liquid from accumulating in the space 9c, and it is possible to prevent the rotational balance of the processing tool 2 from deteriorating.
  • the present inventors conducted the following studies. As described above, the flange portion 13 of the holder 3 is placed in a state where the first surface 13a (support surface 15) is in surface contact with the first end surface 8a (bottom surface 9a of the first recess 9) of the processing tool 2. 2 will be supported. In this state, the first surface 13a of the flange portion 13 closes the space 9c formed in the first end surface 8a of the processing tool 2. In such a state, it is difficult for liquid to enter between the first surface 13a of the flange portion 13 and the first end surface 8a of the processing tool 2, but nevertheless, the sealing member 6 is not provided. In the processing apparatus 1, liquid sometimes accumulated in the space 9c.
  • FIG. 7 and 8 show a second embodiment of the present invention.
  • the processing device 1 according to this embodiment differs from the first embodiment in the configuration of the seal member 6.
  • the seal member 6 covers the entire second recess 10 on the second end surface 8b of the processing tool 2 with the lid portion 24 of the lid body 22.
  • FIG. 7 shows that the seal member 6 covers the entire second recess 10 on the second end surface 8b of the processing tool 2 with the lid portion 24 of the lid body 22.
  • the lid 22 of the seal member 6 has a groove 27 on the second surface 24b of the lid 24 for holding the seal 23.
  • the groove portion 27 is configured in an annular shape so as to surround the screw shaft 25a of the connecting portion 25.
  • An O-ring serving as the seal body 23 is fitted into the groove portion 27 .
  • the diameter of the groove 27 is larger than the diameter of the second recess 10.
  • the operation part 26 formed on the first surface 24a of the lid part 24 of the lid body 22 does not have the protrusion part 26b illustrated in the first embodiment, but only has a recessed part 26a.
  • the recess 26a has a polygonal (eg, hexagonal) side wall surface.
  • the connecting portion 25 of the lid 22 can be attached to and removed from the cylindrical portion 12 of the holder 3 by rotating the lid 22 with a tool that engages with the recess 26a of the operating portion 26.
  • the configuration of the seal member 6 as described above can reliably prevent liquids such as grinding liquid and polishing liquid from entering the second recess 10 in the second end surface 8b of the processing tool 2.
  • the present invention is not limited to this configuration.
  • the processing device 1 does not need to have the second recess 10 on the second end surface 8b of the processing tool 2.
  • the second end surface 8b of the processing tool 2 is configured as a single surface, and the sealing member 6 is attached to the processing tool 2 so as to close the first through hole 8c located at the center of the second end surface 8b. It can be attached to.
  • the seal member 6 including the seal body 23 attached to the lid body 22 was illustrated, but the present invention is not limited to this configuration.
  • the seal member 6 may include a lid body 22 and a seal body attached to the second end surface 8b of the processing tool 2.
  • a holding portion such as a groove for holding the seal body may be provided on the second end surface 8b of the processing tool 2.
  • the space 9c is provided in the processing tool 2, but it may be provided in the holder 3. In that case, the space 9c may be provided only in the holder 3, or may be provided in both the holder 3 and the processing tool 2.
  • Processing device Processing tool 3 Holder 6 Seal member 8a First end surface 8b Second end surface 8c First through hole 9c Space portion 12 Cylindrical portion 13 Flange portion (support portion) 22 Lid body 23 Seal body 25 Connection part G Glass plate

Abstract

This tool assembly comprises: a rotatable processing tool 2 for processing the end surfaces of a glass plate G; and a rotatable holder 3 that holds the processing tool 2. The tool assembly further comprises: a cavity portion 9c that is used for rotational balance adjustment and is provided to the holder 3 and/or the processing tool 2; and a sealing member 6 that prevents liquid from entering the cavity portion 9c.

Description

工具アセンブリ、加工装置及びガラス板の製造方法Tool assembly, processing equipment and glass plate manufacturing method
　本発明は、ガラス板を加工するための工具アセンブリ、加工装置及びガラス板を製造する方法に関する。 The present invention relates to a tool assembly for processing a glass plate, a processing apparatus, and a method for manufacturing a glass plate.
　周知のように、ガラス板の製造工程では、加工装置によってガラス板の端面に対して研削加工や研磨加工を施す場合が多い。例えば特許文献１には、加工装置の例として、回転可能な加工具（砥石）と、加工具を保持する保持具と、加工具を回転させる回転軸としてのスピンドルと、を備えたものが開示されている。 As is well known, in the glass plate manufacturing process, processing equipment often performs grinding or polishing on the end surface of the glass plate. For example, Patent Document 1 discloses an example of a processing device that includes a rotatable processing tool (grindstone), a holder that holds the processing tool, and a spindle as a rotating shaft that rotates the processing tool. has been done.
　加工装置の保持具は、加工具の軸方向の一端部を支持するフランジ部と、スピンドルが嵌合する孔部とを有する。保持具は、フランジ部によって加工具を支持した状態で、スピンドルに駆動されることで、加工具とともに回転するように構成される。 The holder of the processing device has a flange portion that supports one end of the processing tool in the axial direction, and a hole portion into which the spindle fits. The holder is configured to rotate together with the processing tool by being driven by the spindle while supporting the processing tool with the flange portion.
　加工具やフランジ部の一端部には、回転時のバランスを調整するための穴が形成される場合がある。この場合、加工具は、加工具の穴がフランジ部と対向するように、そして、フランジ部の穴が加工具に対向するように、保持具に取り付けられる。これにより、加工具の穴はフランジ部によって閉塞され、フランジ部の穴は加工具によって閉塞されることになる。 A hole may be formed at one end of the processing tool or flange to adjust the balance during rotation. In this case, the processing tool is attached to the holder so that the hole in the processing tool faces the flange, and the hole in the flange faces the processing tool. As a result, the hole in the processing tool is closed by the flange portion, and the hole in the flange portion is closed by the processing tool.
国際公開第２０２０／０３９９４０号International Publication No. 2020/039940
　上記のように、従来の加工装置では、バランス調整用の穴が加工具や保持具のフランジ部によって塞がれているが、加工時における振動等の影響により、フランジ部と加工具の一端部との間に研削液等の液体が浸入し、穴にこの液体が溜まる場合があった。穴に液体が溜まると、加工装置の回転バランスが崩れ、振動が増加してしまい、ガラス板の加工精度が悪化するおそれがあった。 As mentioned above, in conventional processing equipment, the hole for balance adjustment is blocked by the flange of the processing tool or holder, but due to the influence of vibrations during processing, the flange and one end of the processing tool In some cases, liquid such as grinding fluid may enter the hole and accumulate in the hole. If liquid accumulates in the hole, the rotational balance of the processing device will be disrupted, vibration will increase, and there is a risk that the processing accuracy of the glass plate will deteriorate.
　本発明は上記の事情に鑑みてなされたものであり、加工装置の回転バランスの悪化を防止することを技術的課題とする。 The present invention has been made in view of the above circumstances, and its technical problem is to prevent deterioration of the rotational balance of a processing device.
　本発明は上記の課題を解決するためのものであり、ガラス板の端面を加工するための回転可能な加工具と、前記加工具を保持する回転可能な保持具と、を備える工具アセンブリにおいて、前記保持具及び／又は前記加工具に設けられた、回転のバランスを調整するための空間部と、前記空間部への液体の浸入を防止するシール部材と、を備えることを特徴とする。 The present invention is intended to solve the above problems, and provides a tool assembly including a rotatable processing tool for processing the end surface of a glass plate, and a rotatable holder for holding the processing tool. It is characterized by comprising a space provided in the holder and/or the processing tool for adjusting rotational balance, and a seal member for preventing liquid from entering the space.
　かかる構成によれば、シール部材によって空間部に液体が溜まることを防止することで、加工装置の回転バランスの悪化を確実に防止することができる。 According to this configuration, by preventing liquid from accumulating in the space by the sealing member, deterioration of the rotational balance of the processing device can be reliably prevented.
　本発明に係る工具アセンブリにおいて、前記空間部は、前記加工装置の内部に設けられてもよい。かかる構成によれば、加工装置の回転のバランスを効率的に取ることができる。このような場合であっても、シール部材によって空間部に液体が溜まることを防止することができる。 In the tool assembly according to the present invention, the space portion may be provided inside the processing device. According to this configuration, it is possible to efficiently balance the rotation of the processing device. Even in such a case, the sealing member can prevent liquid from accumulating in the space.
　本発明に係る工具アセンブリにおいて、前記加工具は、第一端面と、前記第一端面の反対側に位置する第二端面とを有し、前記保持具は、前記第一端面を支持する支持部を有し、前記空間部は、前記第一端面に形成されてもよい。 In the tool assembly according to the present invention, the processing tool has a first end surface and a second end surface located on the opposite side of the first end surface, and the holder includes a support part that supports the first end surface. The space portion may be formed in the first end surface.
　かかる構成によれば、空間部への液体の侵入をシール部材によって防止することで、この空間部に液体が溜まることを防止できる。 According to this configuration, by preventing liquid from entering the space by the sealing member, it is possible to prevent liquid from accumulating in this space.
　本発明に係る工具アセンブリにおいて、前記加工具は、前記第一端面から前記第二端面まで形成される貫通孔を有し、前記シール部材は、前記貫通孔を閉塞するように前記第二端面に設けられてもよい。 In the tool assembly according to the present invention, the processing tool has a through hole formed from the first end surface to the second end surface, and the seal member is arranged on the second end surface so as to close the through hole. may be provided.
　かかる構成によれば、貫通孔に液体が浸入することをシール部材によって阻止することで、貫通孔を通じて空間部に液体が浸入することを防止できる。 According to this configuration, the seal member prevents liquid from entering the through hole, thereby preventing liquid from entering the space through the through hole.
　本発明に係る工具アセンブリにおいて、前記シール部材は、前記貫通孔を閉塞する蓋体と、前記蓋体と前記加工具の前記第二端面との間をシールするシール体とを備えてもよい。 In the tool assembly according to the present invention, the sealing member may include a lid that closes the through hole, and a seal that seals between the lid and the second end surface of the processing tool.
　かかる構成によれば、貫通孔に液体が浸入することをシール部材の蓋体及びシール体によって阻止することで、貫通孔を通じて空間部に液体が浸入することを防止できる。 According to this configuration, by preventing liquid from entering the through hole with the lid body and sealing body of the sealing member, it is possible to prevent liquid from entering the space through the through hole.
　本発明に係る工具アセンブリにおいて、前記保持具は、前記支持部の中央部に設けられる筒状部を有し、前記蓋体は、前記筒状部に連結される連結部を有してもよい。かかる構成によれば、連結部を介してシール部材を保持具に固定することができる。 In the tool assembly according to the present invention, the holder may have a cylindrical part provided in the center of the support part, and the lid may have a connecting part connected to the cylindrical part. . According to this configuration, the seal member can be fixed to the holder via the connecting portion.
　本発明に係る工具アセンブリにおいて、前記蓋体は、樹脂製のものを採用してもよい。かかる構成によれば、加工装置を軽量化することが可能となる。 In the tool assembly according to the present invention, the lid body may be made of resin. According to this configuration, it is possible to reduce the weight of the processing device.
　本発明に係る加工装置は上記の課題を解決するためのものであり、上記の工具アセンブリと、前記工具アセンブリを回転させる回転軸と、を備えることを特徴とする。かかる構成によれば、シール部材によって空間部に液体が溜まることを防止することで、加工装置の回転バランスの悪化を確実に防止することができる。 A processing device according to the present invention is intended to solve the above problems, and is characterized by comprising the above tool assembly and a rotating shaft that rotates the tool assembly. According to this configuration, by preventing liquid from accumulating in the space by the sealing member, deterioration of the rotational balance of the processing device can be reliably prevented.
　本発明に係るガラス板の製造方法は上記の課題を解決するためのものであり、上記の加工装置によってガラス板の端面を加工する工程を備えることを特徴とする。かかる構成によれば、加工装置の回転バランスの悪化を防止して、加工精度の高いガラス板を製造することが可能となる。 A method for manufacturing a glass plate according to the present invention is intended to solve the above-mentioned problems, and is characterized by comprising a step of processing an end face of a glass plate using the processing apparatus described above. According to this configuration, it is possible to prevent deterioration of the rotational balance of the processing device and to manufacture a glass plate with high processing accuracy.
　本発明によれば、加工装置の回転バランスの悪化を防止することができる。 According to the present invention, deterioration of the rotational balance of the processing device can be prevented.
第一実施形態に係る加工装置の断面図である。It is a sectional view of the processing device concerning a first embodiment. 加工具の断面図である。FIG. 3 is a cross-sectional view of the processing tool. 保持具の断面図である。FIG. 3 is a cross-sectional view of the holder. シール部材の側面図である。It is a side view of a sealing member. シール部材の平面図である。It is a top view of a sealing member. ガラス板の製造方法を示す斜視図である。It is a perspective view showing a manufacturing method of a glass plate. 第二実施形態に係る加工装置の断面図である。It is a sectional view of a processing device concerning a second embodiment. シール部材の平面図である。It is a top view of a sealing member.
　以下、本発明を実施するための形態について、図面を参照しながら説明する。図１乃至図６は、本発明に係る工具アセンブリ、加工装置及びガラス板の製造方法の第一実施形態を示す。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 6 show a first embodiment of a tool assembly, a processing device, and a method for manufacturing a glass plate according to the present invention.
　図１に示すように、加工装置１は、回転可能な加工具２と、加工具２を保持する回転可能な保持具３と、保持具３を介して加工具２を回転させる回転軸としてのスピンドル４と、加工具２を保持具３に固定する第一固定具５ａと、保持具３をスピンドル４に固定する第二固定具５ｂと、加工具２に取り付けられるシール部材６と、を備える。以下では、加工具２を保持した状態の保持具３を工具アセンブリともいう。 As shown in FIG. 1, the processing device 1 includes a rotatable processing tool 2, a rotatable holder 3 that holds the processing tool 2, and a rotating shaft that rotates the processing tool 2 via the holder 3. It includes a spindle 4, a first fixture 5a that fixes the processing tool 2 to the holder 3, a second fixture 5b that fixes the holder 3 to the spindle 4, and a seal member 6 that is attached to the processing tool 2. . Hereinafter, the holder 3 holding the processing tool 2 will also be referred to as a tool assembly.
　図１及び図２に示すように、加工具２は、ガラス板Ｇを加工するための加工部７（砥石部分）と、加工部７を支持する本体部８とを備える。 As shown in FIGS. 1 and 2, the processing tool 2 includes a processing section 7 (grindstone section) for processing the glass plate G, and a main body section 8 that supports the processing section 7.
　加工部７としては、例えばダイヤモンド砥粒を金属の電着ボンドで固めてなる電着砥石や、砥粒を金属質結合剤で固めてなるメタルボンド砥石が好適に使用される。 As the processing section 7, for example, an electrodeposited grindstone formed by hardening diamond abrasive grains with a metal electrodeposition bond, or a metal bonded grindstone formed by hardening abrasive grains with a metallic binder is suitably used.
　本体部８は、例えば金属製の円筒状部材により構成される。本体部８の外周面には、加工部７が一体に形成されている。本体部８は、筒心方向の一端部に形成される第一端面８ａと、第一端面８ａとは筒心方向の反対側に位置する第二端面８ｂと、保持具３の一部が挿通される第一貫通孔８ｃと、第一固定具５ａが挿入される複数の第二貫通孔８ｄと、を有する。 The main body portion 8 is composed of, for example, a cylindrical member made of metal. A processed portion 7 is integrally formed on the outer peripheral surface of the main body portion 8 . The main body part 8 has a first end surface 8a formed at one end in the direction of the cylindrical core, a second end surface 8b located on the opposite side of the first end surface 8a in the direction of the cylindrical core, and a part of the holder 3 inserted therethrough. It has a first through-hole 8c, and a plurality of second through-holes 8d into which the first fixture 5a is inserted.
　本実施形態において、本体部８は、第一端面８ａが下方に面し、第二端面８ｂが上方に面するように、保持具３に支持されている。 In this embodiment, the main body portion 8 is supported by the holder 3 such that the first end surface 8a faces downward and the second end surface 8b faces upward.
　本体部８の第一端面８ａは、その中央部に第一凹部９を有する。第一凹部９は、底面９ａと、側壁面９ｂとを有する。底面９ａは、平面視において円形状に構成されている。底面９ａには、第一貫通孔８ｃが位置している。 The first end surface 8a of the main body portion 8 has a first recess 9 in its center. The first recess 9 has a bottom surface 9a and a side wall surface 9b. The bottom surface 9a has a circular shape in plan view. A first through hole 8c is located in the bottom surface 9a.
　第一凹部９の底面９ａは、中心部から半径方向に離れた位置に空間部９ｃを有する。空間部９ｃは、例えばドリル等の工具によって形成された穴（例えば円形の穴）により構成される。これに限らず、空間部９ｃは、底面９ａに凹部を形成することによって構成されてもよい。本実施形態では、底面９ａに形成された一つの空間部９ｃを例示するが、複数の空間部９ｃが底面９ａに形成されてもよい。 The bottom surface 9a of the first recess 9 has a space 9c at a position radially away from the center. The space 9c is formed by a hole (for example, a circular hole) formed by a tool such as a drill. However, the present invention is not limited to this, and the space portion 9c may be configured by forming a recessed portion in the bottom surface 9a. In this embodiment, one space 9c formed in the bottom surface 9a is illustrated, but a plurality of spaces 9c may be formed in the bottom surface 9a.
　第一凹部９の側壁面９ｂは、底面９ａの周縁部を囲むように、平面視において円形に構成されている。 The side wall surface 9b of the first recess 9 is circular in plan view so as to surround the peripheral edge of the bottom surface 9a.
　本体部８の第二端面８ｂは、その中央部に第二凹部１０を有する。第二凹部１０は、第一凹部９と同様に、平面視円形の底面１０ａと、底面１０ａの周囲を囲む平面視円形の側壁面１０ｂとを有する。 The second end surface 8b of the main body portion 8 has a second recess 10 at its center. Like the first recess 9, the second recess 10 has a bottom surface 10a that is circular in plan view and a side wall surface 10b that is circular in plan view and surrounds the bottom surface 10a.
　第一貫通孔８ｃは、本体部８の中心部において、第一端面８ａから第二端面８ｂまで貫通する孔である。具体的には、第一貫通孔８ｃは、第一端面８ａの第一凹部９における底面９ａから、第二端面８ｂの第二凹部１０における底面１０ａまで貫通している。第二貫通孔８ｄは、本体部８の中心部から半径方向に離れた位置に形成されている。各第二貫通孔８ｄは、第一固定具５ａの一部を保持する保持部１１を有する。 The first through hole 8c is a hole that passes through the center of the main body 8 from the first end surface 8a to the second end surface 8b. Specifically, the first through hole 8c penetrates from the bottom surface 9a of the first recess 9 of the first end surface 8a to the bottom surface 10a of the second recess 10 of the second end surface 8b. The second through hole 8d is formed at a position radially away from the center of the main body portion 8. Each second through hole 8d has a holding part 11 that holds a part of the first fixture 5a.
　図１及び図３に示すように、保持具３は、筒状部１２と、筒状部１２の一端部に形成されるフランジ部１３とを有する。 As shown in FIGS. 1 and 3, the holder 3 has a cylindrical portion 12 and a flange portion 13 formed at one end of the cylindrical portion 12.
　筒状部１２は、例えば円筒状に構成され、フランジ部１３の中央部において一体に形成されている。筒状部１２は、第二固定具５ｂを収容することが可能な内部空間を有する。筒状部１２の内面には、シール部材６の一部が係合する雌ねじ１２ａが形成されている（図３参照）。 The cylindrical portion 12 has a cylindrical shape, for example, and is integrally formed at the center of the flange portion 13. The cylindrical portion 12 has an internal space that can accommodate the second fixture 5b. A female thread 12a is formed on the inner surface of the cylindrical portion 12, with which a portion of the seal member 6 engages (see FIG. 3).
　筒状部１２の外径は、加工具２の第一貫通孔８ｃの内径よりも小さい。筒状部１２は、加工具２の第一貫通孔８ｃと同心状となるように、この第一貫通孔８ｃに挿通されている。この構成により、筒状部１２の外面と第一貫通孔８ｃの内面との間には、隙間Ｓが形成される（図１参照）。 The outer diameter of the cylindrical portion 12 is smaller than the inner diameter of the first through hole 8c of the processing tool 2. The cylindrical portion 12 is inserted into the first through hole 8c of the processing tool 2 so as to be concentric with the first through hole 8c. With this configuration, a gap S is formed between the outer surface of the cylindrical portion 12 and the inner surface of the first through hole 8c (see FIG. 1).
　フランジ部１３は、加工具２を支持する支持部として機能する。フランジ部１３は、円板状に構成されるが、この形状に限定されない。フランジ部１３は、厚さ方向の端部に形成される第一の面１３ａと、第一の面１３ａとは反対側に位置する第二の面１３ｂと、第一の面１３ａと第二の面１３ｂとを繋ぐ端面１３ｃと、を含む。 The flange portion 13 functions as a support portion that supports the processing tool 2. The flange portion 13 is configured in a disk shape, but is not limited to this shape. The flange portion 13 has a first surface 13a formed at the end in the thickness direction, a second surface 13b located on the opposite side to the first surface 13a, and a surface formed between the first surface 13a and the second surface 13a. and an end surface 13c that connects the surface 13b.
　本実施形態において、第一の面１３ａは上方に面しており、第二の面１３ｂは下方に面している。第一の面１３ａは、加工具２における第一凹部９の底面９ａに接触している。第一の面１３ａの中央部には、筒状部１２が形成されている。 In this embodiment, the first surface 13a faces upward, and the second surface 13b faces downward. The first surface 13a is in contact with the bottom surface 9a of the first recess 9 in the processing tool 2. A cylindrical portion 12 is formed in the center of the first surface 13a.
　フランジ部１３は、スピンドル４が挿通される軸挿入孔１４と、加工具２の第一端面８ａに接触する支持面１５と、第一固定具５ａの一部が嵌まる固定穴１６と、を備える。 The flange portion 13 includes a shaft insertion hole 14 into which the spindle 4 is inserted, a support surface 15 that contacts the first end surface 8a of the processing tool 2, and a fixing hole 16 into which a part of the first fixture 5a is fitted. Be prepared.
　軸挿入孔１４は、スピンドル４の一部を内部に収容する収容部として機能する。軸挿入孔１４は、フランジ部１３の中心部に形成されている。軸挿入孔１４は、筒状部１２の内部と連通している。軸挿入孔１４は、スピンドル４の一部に接触するテーパ状の内面（接触面）１４ａを有する。内面１４ａは、フランジ部１３の第二の面１３ｂ側から第一の面１３ａ側に向かうにつれて内径が縮小するように構成されている。 The shaft insertion hole 14 functions as a housing portion that accommodates a portion of the spindle 4 therein. The shaft insertion hole 14 is formed at the center of the flange portion 13. The shaft insertion hole 14 communicates with the inside of the cylindrical portion 12 . The shaft insertion hole 14 has a tapered inner surface (contact surface) 14 a that contacts a portion of the spindle 4 . The inner surface 14a is configured such that its inner diameter decreases from the second surface 13b side of the flange portion 13 toward the first surface 13a side.
　軸挿入孔１４における小径端部の内径は、筒状部１２の内径よりも小さくなっている。この構成により、軸挿入孔１４と筒状部１２との間には、第二固定具５ｂの一部を保持する保持部２１が形成されている。 The inner diameter of the small diameter end of the shaft insertion hole 14 is smaller than the inner diameter of the cylindrical portion 12. With this configuration, a holding part 21 that holds a part of the second fixture 5b is formed between the shaft insertion hole 14 and the cylindrical part 12.
　支持面１５は、フランジ部１３の第一の面１３ａに形成されている。支持面１５は、加工具２の本体部８における第一凹部９の底面９ａに接触することにより、本体部８を支持する。これにより、第一凹部９の底面９ａに設けられた空間部９ｃは支持面１５で覆われる。このため、工具アセンブリは、その内部に空間部９ｃを有する。 The support surface 15 is formed on the first surface 13a of the flange portion 13. The support surface 15 supports the main body 8 by contacting the bottom surface 9a of the first recess 9 in the main body 8 of the processing tool 2. Thereby, the space 9c provided in the bottom surface 9a of the first recess 9 is covered with the support surface 15. Therefore, the tool assembly has a space 9c inside thereof.
　固定穴１６は、フランジ部１３の第一の面１３ａにおいて、中心部から半径方向に離れた位置に形成されている。固定穴１６は、第一の面１３ａからフランジ部１３の厚さ方向の中途部にかけて形成されるねじ穴であり、加工具２の保持部１１に対応する位置に形成されている。 The fixing hole 16 is formed in the first surface 13a of the flange portion 13 at a position radially away from the center. The fixing hole 16 is a screw hole formed from the first surface 13a to the middle part of the flange portion 13 in the thickness direction, and is formed at a position corresponding to the holding portion 11 of the processing tool 2.
　スピンドル４は、テーパ形状に構成される軸部４ａを有する。軸部４ａは、基端側から先端側に移行するにつれて外径が縮小するテーパ面を有する。軸部４ａの端面には、第二固定具５ｂの一部が嵌まる固定穴１７が形成されている。固定穴１７は、例えばねじ穴により構成される。スピンドル４は、モーター等の駆動装置（図示せず）からの動力伝達に伴い、加工具２及び保持具３と共に回転することができる。 The spindle 4 has a shaft portion 4a configured in a tapered shape. The shaft portion 4a has a tapered surface whose outer diameter decreases as it moves from the proximal end to the distal end. A fixing hole 17 into which a part of the second fixture 5b fits is formed in the end surface of the shaft portion 4a. The fixing hole 17 is constituted by, for example, a screw hole. The spindle 4 can rotate together with the processing tool 2 and the holder 3 as power is transmitted from a drive device (not shown) such as a motor.
　第一固定具５ａは、ボルト（例えば六角穴付ボルト）により構成される。図１に示すように、第一固定具５ａの軸部１８ａは、保持具３の固定穴１６に嵌まっている。第一固定具５ａの頭部１８ｂは、第二貫通孔８ｄの保持部１１に支持されている。 The first fixture 5a is composed of a bolt (for example, a hexagon socket head bolt). As shown in FIG. 1, the shaft portion 18a of the first fixture 5a is fitted into the fixing hole 16 of the holder 3. The head 18b of the first fixture 5a is supported by the holding part 11 of the second through hole 8d.
　第二固定具５ｂは、ボルト１９（例えば六角穴付ボルト）と、押さえ板２０とを含む。ボルト１９は、その軸部１９ａが押さえ板２０を貫通すると共に、スピンドル４の固定穴１７に嵌まっている。ボルト１９の頭部１９ｂは、押さえ板２０によって支持されている。 The second fixture 5b includes a bolt 19 (for example, a hexagon socket head bolt) and a holding plate 20. The shaft portion 19a of the bolt 19 passes through the holding plate 20 and is fitted into the fixing hole 17 of the spindle 4. The head 19b of the bolt 19 is supported by a holding plate 20.
　押さえ板２０は、円板状に構成されるとともに、その中心部に、ボルト１９の軸部１９ａが挿通される孔２０ａを有する。図１に示すように、押さえ板２０は、保持具３の筒状部１２と軸挿入孔１４との間に形成される保持部２１に支持されている。 The holding plate 20 is configured in a disk shape, and has a hole 20a in the center thereof, into which the shaft portion 19a of the bolt 19 is inserted. As shown in FIG. 1, the holding plate 20 is supported by a holding part 21 formed between the cylindrical part 12 of the holder 3 and the shaft insertion hole 14.
　シール部材６は、加工具２の第一貫通孔８ｃと、保持具３の筒状部１２との間の隙間Ｓ、及びフランジ部１３の第一の面１３ａを通じて研削液、研磨液等の液体が空間部９ｃに浸入することを防止するためのものである。シール部材６は、加工具２の第一貫通孔８ｃを閉塞するように、加工具２の第二端面８ｂに固定されている。 The sealing member 6 allows liquid such as grinding liquid or polishing liquid to pass through the gap S between the first through hole 8c of the processing tool 2 and the cylindrical part 12 of the holder 3 and the first surface 13a of the flange part 13. This is to prevent the liquid from entering the space 9c. The seal member 6 is fixed to the second end surface 8b of the processing tool 2 so as to close the first through hole 8c of the processing tool 2.
　図１、図４及び図５に示すように、シール部材６は、蓋体２２と、蓋体２２に取り付けられるシール体２３とを備える。 As shown in FIGS. 1, 4, and 5, the seal member 6 includes a lid body 22 and a seal body 23 attached to the lid body 22.
　本実施形態において、蓋体２２は樹脂製であるが、蓋体２２の材質は本実施形態に限定されない。蓋体２２は、加工具２の第一貫通孔８ｃ及び第二凹部１０を閉塞する蓋部２４と、保持具３の筒状部１２に連結される連結部２５とを有する。 In this embodiment, the lid 22 is made of resin, but the material of the lid 22 is not limited to this embodiment. The lid body 22 includes a lid portion 24 that closes the first through hole 8c and the second recess 10 of the processing tool 2, and a connecting portion 25 that is connected to the cylindrical portion 12 of the holder 3.
　蓋部２４は、円板状に構成されるが、この形状に限定されない。蓋部２４は、厚さ方向の一端部に形成される第一の面２４ａと、第一の面２４ａの反対側に位置する第二の面２４ｂと、第一の面２４ａと第二の面２４ｂとを繋ぐ端面２４ｃと、を有する。 The lid portion 24 is configured in a disc shape, but is not limited to this shape. The lid part 24 has a first surface 24a formed at one end in the thickness direction, a second surface 24b located on the opposite side of the first surface 24a, and a first surface 24a and a second surface. 24b.
　蓋部２４の第一の面２４ａは、蓋体２２を操作するための操作部２６を有する。図５に示すように、操作部２６は、第一の面２４ａの中央部に形成される円形状の凹部２６ａと、凹部２６ａの中心部に形成される突起部２６ｂとを有する。 The first surface 24a of the lid 24 has an operating portion 26 for operating the lid 22. As shown in FIG. 5, the operating portion 26 has a circular recess 26a formed at the center of the first surface 24a, and a protrusion 26b formed at the center of the recess 26a.
　蓋部２４の第二の面２４ｂは、連結部２５と一体に構成される。第二の面２４ｂは、下方に面するように、すなわち、加工具２の第二凹部１０における底面１０ａと対向するように配置される。 The second surface 24b of the lid portion 24 is configured integrally with the connecting portion 25. The second surface 24b is arranged to face downward, that is, to face the bottom surface 10a of the second recess 10 of the processing tool 2.
　蓋部２４の端面２４ｃは、シール体２３を保持する保持部としての溝部２７を有する。図５に示すように、溝部２７は、端面２４ｃの周方向に沿って環状に形成されている。 The end surface 24c of the lid portion 24 has a groove portion 27 as a holding portion that holds the seal body 23. As shown in FIG. 5, the groove portion 27 is formed in an annular shape along the circumferential direction of the end surface 24c.
　連結部２５は、蓋部２４と同心状に構成されるねじ軸２５ａを含む。ねじ軸２５ａは、保持具３の筒状部１２に形成された雌ねじ１２ａに嵌め込まれている。 The connecting portion 25 includes a screw shaft 25a configured concentrically with the lid portion 24. The screw shaft 25a is fitted into a female thread 12a formed in the cylindrical portion 12 of the holder 3.
　上記の構成により、蓋体２２は、保持具３に対して着脱自在に取り付けられる。蓋体２２を保持具３に取り付ける場合には、蓋体２２の連結部２５を保持具３の筒状部１２の先端部に対して同心状となるように配置し、操作部２６の突起部２６ｂを作業者が掴んで回転操作することで、ねじ軸２５ａを筒状部１２の雌ねじ１２ａに螺合させる。蓋体２２を保持具３から取り外す場合には、操作部２６の突起部２６ｂを回転操作することにより、ねじ軸２５ａを筒状部１２から抜き取る。 With the above configuration, the lid body 22 is detachably attached to the holder 3. When attaching the lid 22 to the holder 3, the connecting part 25 of the lid 22 is arranged concentrically with the tip of the cylindrical part 12 of the holder 3, and the protrusion of the operating part 26 The screw shaft 25a is screwed into the female thread 12a of the cylindrical portion 12 by the operator grasping and rotating the screw shaft 26b. When removing the lid 22 from the holder 3, the screw shaft 25a is extracted from the cylindrical portion 12 by rotating the protrusion 26b of the operating portion 26.
　シール体２３は、例えば環状の弾性部材（Ｏリング）により構成されるが、シール体２３の構成は本実施形態に限定されない。シール体２３は、その一部が蓋部２４の溝部２７から突出するように、この溝部２７に嵌め込まれている。 The seal body 23 is composed of, for example, an annular elastic member (O-ring), but the configuration of the seal body 23 is not limited to this embodiment. The seal body 23 is fitted into the groove 27 of the lid 24 so that a portion thereof protrudes from the groove 27.
　図１に示すように、シール体２３は、蓋体２２の蓋部２４が加工具２の第二端面８ｂにおける第二凹部１０に挿入された状態で、第二凹部１０の側壁面１０ｂに密着している。シール体２３は、加工具２の第二端面８ｂの側壁面１０ｂと蓋部２４の端面２４ｃとに挟まれることで、蓋部２４の端面２４ｃと加工具２の側壁面１０ｂとの間をシールしている。 As shown in FIG. 1, the sealing body 23 is in close contact with the side wall surface 10b of the second recess 10 when the lid 24 of the lid 22 is inserted into the second recess 10 on the second end surface 8b of the processing tool 2. are doing. The seal body 23 is sandwiched between the side wall surface 10b of the second end surface 8b of the processing tool 2 and the end surface 24c of the lid section 24, thereby sealing between the end surface 24c of the lid section 24 and the side wall surface 10b of the processing tool 2. are doing.
　以下、本実施形態に係る加工装置１を使用してガラス板を製造する方法について、図６を参照しながら説明する。 Hereinafter, a method for manufacturing a glass plate using the processing apparatus 1 according to this embodiment will be described with reference to FIG. 6.
　本方法は、例えば矩形状に形成されたガラス板Ｇの端面を加工する加工工程を備える。加工工程は、第一加工装置１Ａ及び第一供給装置２８によってガラス板Ｇに研削加工を施す第一加工工程と、第二加工装置１Ｂ及び第二供給装置２９によってガラス板Ｇに研磨加工を施す第二加工工程とを含む。第一加工装置１Ａ及び第二加工装置１Ｂは、上記の加工装置１と同じ構成を有する。第一加工装置１Ａ及び第二加工装置１Ｂとの違いは、加工部７の構成（材質等）のみである。 This method includes a processing step of processing an end face of a glass plate G formed into a rectangular shape, for example. The processing steps include a first processing step in which the first processing device 1A and the first supply device 28 perform a grinding process on the glass plate G, and a second processing device 1B and the second supply device 29 perform a polishing process on the glass plate G. and a second processing step. The first processing device 1A and the second processing device 1B have the same configuration as the processing device 1 described above. The only difference between the first processing device 1A and the second processing device 1B is the configuration (material, etc.) of the processing section 7.
　本実施形態において、各加工工程では、ガラス板Ｇと、各加工装置１Ａ，１Ｂ及び各供給装置２８，２９と、を相対的に移動させることにより、ガラス板Ｇの端面を加工する。本実施形態では、各加工装置１Ａ，１Ｂ及び各供給装置２８，２９を移動させることなく、ガラス板Ｇを搬送装置（図示せず）によって搬送方向Ｘに沿って搬送しながら加工する例を示すが、本発明はこの例に限定されない。各加工工程は、ガラス板Ｇを移動させることなく定盤によって支持した状態で、各加工装置１Ａ，１Ｂ及び各供給装置２８，２９を移動させることによって、ガラス板Ｇを加工してもよい。 In this embodiment, in each processing step, the end surface of the glass plate G is processed by relatively moving the glass plate G, each processing device 1A, 1B, and each supply device 28, 29. In this embodiment, an example is shown in which the glass plate G is processed while being transported along the transport direction X by a transport device (not shown) without moving each processing device 1A, 1B and each supply device 28, 29. However, the present invention is not limited to this example. In each processing step, the glass plate G may be processed by moving each processing device 1A, 1B and each supply device 28, 29 while supporting the glass plate G by a surface plate without moving it.
　第一加工工程では、第一供給装置２８によって研削液Ｌ１を加工具２に供給しながら、回転軸心ＣＲ１まわりに回転する第一加工装置１Ａの加工具２によってガラス板Ｇの端面を研削する。第一供給装置２８は、第一加工装置１Ａの近傍位置に配されるノズル２８ａを有する。ノズル２８ａから噴出される研削液Ｌ１としては、例えば水が使用される。 In the first processing step, the end face of the glass plate G is ground by the processing tool 2 of the first processing device 1A rotating around the rotation axis CR1 while the grinding fluid L1 is supplied to the processing tool 2 by the first supply device 28. . The first supply device 28 has a nozzle 28a arranged near the first processing device 1A. For example, water is used as the grinding liquid L1 spouted from the nozzle 28a.
　第二加工装置１Ｂは、ガラス板Ｇの搬送方向Ｘにおいて第一加工装置１Ａの下流側に配されている。第二加工工程では、第二供給装置２９によって研磨液Ｌ２を加工具２に供給しながら、回転軸心ＣＲ２まわりに回転する第二加工装置１Ｂの加工具２によってガラス板Ｇの端面を研磨する。第二供給装置２９は、第二加工装置１Ｂの近傍位置に配されるノズル２９ａを有する。ノズル２９ａから噴出される研磨液Ｌ２としては、例えば水が使用される。 The second processing device 1B is arranged downstream of the first processing device 1A in the transport direction X of the glass plate G. In the second processing step, the end surface of the glass plate G is polished by the processing tool 2 of the second processing device 1B that rotates around the rotation axis CR2 while supplying the polishing liquid L2 to the processing tool 2 by the second supply device 29. . The second supply device 29 has a nozzle 29a arranged near the second processing device 1B. For example, water is used as the polishing liquid L2 spouted from the nozzle 29a.
　上記の各加工工程の実行中において、研削液、研磨液等の液体の飛沫が加工具２の上部に到達する場合がある。この場合において、加工具２の上部は、シール部材６によってシールされていることから、液体が加工具２の第二凹部１０及び第一貫通孔８ｃを通じて空間部９ｃに浸入することを防止できる。これにより、液体が空間部９ｃに溜まることを防止でき、加工具２の回転バランスの悪化を防止することが可能となる。 During execution of each of the above processing steps, droplets of liquid such as grinding fluid and polishing fluid may reach the upper part of the processing tool 2. In this case, since the upper part of the processing tool 2 is sealed by the sealing member 6, it is possible to prevent liquid from entering the space 9c through the second recess 10 and the first through hole 8c of the processing tool 2. Thereby, it is possible to prevent liquid from accumulating in the space 9c, and it is possible to prevent the rotational balance of the processing tool 2 from deteriorating.
　本発明者等は、本発明を完成させるに当たり、以下のような検討を行った。上記のように、保持具３のフランジ部１３は、第一の面１３ａ（支持面１５）が加工具２の第一端面８ａ（第一凹部９の底面９ａ）に面接触した状態で加工具２を支持することになる。この状態において、フランジ部１３の第一の面１３ａは、加工具２の第一端面８ａに形成される空間部９ｃを閉塞することになる。このような状態では、フランジ部１３の第一の面１３ａと加工具２の第一端面８ａとの間に液体が浸入し難くなっているが、それにも関わらず、シール部材６を備えていない加工装置１では、空間部９ｃに液体が溜まる場合があった。 In completing the present invention, the present inventors conducted the following studies. As described above, the flange portion 13 of the holder 3 is placed in a state where the first surface 13a (support surface 15) is in surface contact with the first end surface 8a (bottom surface 9a of the first recess 9) of the processing tool 2. 2 will be supported. In this state, the first surface 13a of the flange portion 13 closes the space 9c formed in the first end surface 8a of the processing tool 2. In such a state, it is difficult for liquid to enter between the first surface 13a of the flange portion 13 and the first end surface 8a of the processing tool 2, but nevertheless, the sealing member 6 is not provided. In the processing apparatus 1, liquid sometimes accumulated in the space 9c.
　このような現象は、加工具２にガラス板Ｇが接触する際の衝撃による振動等の影響により、引き起こされるものと考えられる。本発明者等は、このような液体の空間部９ｃへの浸入及び滞留現象を確認した上で、保持具３のフランジ部１３が加工具２の空間部９ｃを閉塞している状態であっても、シール部材６を加工具２に取り付けることで、加工具２の回転バランスの悪化を効果的に防止できることを見出した。 It is thought that such a phenomenon is caused by vibrations caused by impact when the glass plate G comes into contact with the processing tool 2. The inventors of the present invention confirmed that the liquid intrudes into the space 9c and remains therein, and determined that the flange 13 of the holder 3 is in a state where the space 9c of the processing tool 2 is closed. It has also been found that by attaching the seal member 6 to the processing tool 2, deterioration of the rotational balance of the processing tool 2 can be effectively prevented.
　図７及び図８は、本発明の第二実施形態を示す。本実施形態に係る加工装置１は、シール部材６の構成が第一実施形態と異なる。図７に示すように、シール部材６は、蓋体２２の蓋部２４によって、加工具２の第二端面８ｂにおける第二凹部１０の全体を被覆している。 7 and 8 show a second embodiment of the present invention. The processing device 1 according to this embodiment differs from the first embodiment in the configuration of the seal member 6. As shown in FIG. 7, the seal member 6 covers the entire second recess 10 on the second end surface 8b of the processing tool 2 with the lid portion 24 of the lid body 22. As shown in FIG.
　シール部材６の蓋体２２は、蓋部２４の第二の面２４ｂに、シール体２３を保持する溝部２７を有する。図８に示すように、溝部２７は、連結部２５のねじ軸２５ａの周囲を囲むように、円環状に構成される。溝部２７には、シール体２３としてのＯリングが嵌め込まれている。 The lid 22 of the seal member 6 has a groove 27 on the second surface 24b of the lid 24 for holding the seal 23. As shown in FIG. 8, the groove portion 27 is configured in an annular shape so as to surround the screw shaft 25a of the connecting portion 25. As shown in FIG. An O-ring serving as the seal body 23 is fitted into the groove portion 27 .
　溝部２７の直径は、第二凹部１０の直径よりも大きい。この構成により、溝部２７に保持されるシール体２３は、加工具２の第二端面８ｂにおいて、第二凹部１０よりも外側の部分８ｂ１に接触している。シール体２３は、第二凹部１０よりも外側の位置で、加工具２の第二端面８ｂ（外側部分８ｂ１）と蓋部２４の第二の面２４ｂとによって挟まれることで、その間をシールしている。 The diameter of the groove 27 is larger than the diameter of the second recess 10. With this configuration, the seal body 23 held in the groove 27 is in contact with a portion 8b1 outside the second recess 10 on the second end surface 8b of the processing tool 2. The seal body 23 is sandwiched between the second end surface 8b (outside portion 8b1) of the processing tool 2 and the second surface 24b of the lid portion 24 at a position outside the second recess 10, thereby sealing the space between them. ing.
　蓋体２２における蓋部２４の第一の面２４ａに形成される操作部２６は、第一実施形態で例示した突起部２６ｂを有しておらず、凹部２６ａのみを有する。図８に示すように、凹部２６ａは、多角形状（例えば六角形状）の側壁面を有する。本実施形態では、操作部２６の凹部２６ａに係合する工具によって蓋体２２を回転させることで、蓋体２２の連結部２５を保持具３の筒状部１２に着脱させることができる。 The operation part 26 formed on the first surface 24a of the lid part 24 of the lid body 22 does not have the protrusion part 26b illustrated in the first embodiment, but only has a recessed part 26a. As shown in FIG. 8, the recess 26a has a polygonal (eg, hexagonal) side wall surface. In this embodiment, the connecting portion 25 of the lid 22 can be attached to and removed from the cylindrical portion 12 of the holder 3 by rotating the lid 22 with a tool that engages with the recess 26a of the operating portion 26.
　本実施形態によれば、上記のようなシール部材６の構成によって、研削液、研磨液等の液体が加工具２の第二端面８ｂにおける第二凹部１０に浸入することを確実に防止できる。 According to the present embodiment, the configuration of the seal member 6 as described above can reliably prevent liquids such as grinding liquid and polishing liquid from entering the second recess 10 in the second end surface 8b of the processing tool 2.
　なお、本発明は、上記実施形態の構成に限定されるものではなく、上記した作用効果に限定されるものでもない。本発明は、本発明の要旨を逸脱しない範囲で種々の変更が可能である。 Note that the present invention is not limited to the configuration of the embodiments described above, nor is it limited to the effects described above. The present invention can be modified in various ways without departing from the gist of the invention.
　上記の第二実施形態では、加工具２の第二端面８ｂに第二凹部１０が形成された例を示したが、本発明はこの構成に限定されない。加工装置１は、加工具２の第二端面８ｂに第二凹部１０を有していなくともよい。この場合には、加工具２の第二端面８ｂを単一面のとして構成し、この第二端面８ｂの中央部に位置する第一貫通孔８ｃを閉塞するように、シール部材６を加工具２に取り付けることができる。 Although the second embodiment described above shows an example in which the second recess 10 is formed in the second end surface 8b of the processing tool 2, the present invention is not limited to this configuration. The processing device 1 does not need to have the second recess 10 on the second end surface 8b of the processing tool 2. In this case, the second end surface 8b of the processing tool 2 is configured as a single surface, and the sealing member 6 is attached to the processing tool 2 so as to close the first through hole 8c located at the center of the second end surface 8b. It can be attached to.
　上記の実施形態では、蓋体２２に装着されるシール体２３を備えるシール部材６を例示したが、本発明はこの構成に限定されない。シール部材６は、蓋体２２と、加工具２の第二端面８ｂに装着されるシール体とを備えるものであってもよい。この場合には、加工具２の第二端面８ｂにシール体を保持する溝部等の保持部を設けてもよい。また、上記の実施形態では、空間部９ｃが加工具２に設けられていたが、保持具３に設けられてもよい。その場合、空間部９ｃが保持具３のみに設けられていてもよく、保持具３と加工具２の両方に設けられていてもよい。 In the above embodiment, the seal member 6 including the seal body 23 attached to the lid body 22 was illustrated, but the present invention is not limited to this configuration. The seal member 6 may include a lid body 22 and a seal body attached to the second end surface 8b of the processing tool 2. In this case, a holding portion such as a groove for holding the seal body may be provided on the second end surface 8b of the processing tool 2. Further, in the above embodiment, the space 9c is provided in the processing tool 2, but it may be provided in the holder 3. In that case, the space 9c may be provided only in the holder 3, or may be provided in both the holder 3 and the processing tool 2.
　１　　　　　　加工装置
　２　　　　　　加工具
　３　　　　　　保持具
　６　　　　　　シール部材
　８ａ　　　　　第一端面
　８ｂ　　　　　第二端面
　８ｃ　　　　　第一貫通孔
　９ｃ　　　　　空間部
１２　　　　　　筒状部
１３　　　　　　フランジ部（支持部）
２２　　　　　　蓋体
２３　　　　　　シール体
２５　　　　　　連結部
　Ｇ　　　　　　ガラス板 1 Processing device 2 Processing tool 3 Holder 6 Seal member 8a First end surface 8b Second end surface 8c First through hole 9c Space portion 12 Cylindrical portion 13 Flange portion (support portion)
22 Lid body 23 Seal body 25 Connection part G Glass plate

Claims (9)

  1. 　ガラス板の端面を加工するための回転可能な加工具と、前記加工具を保持する回転可能な保持具と、を備える工具アセンブリにおいて、
    　前記保持具及び／又は前記加工具に設けられた、回転のバランスを調整するための空間部と、
    　前記空間部への液体の浸入を防止するシール部材と、を備えることを特徴とする工具アセンブリ。     A tool assembly comprising a rotatable processing tool for processing an end surface of a glass plate, and a rotatable holder for holding the processing tool,
    a space provided in the holder and/or the processing tool for adjusting rotational balance;
    A tool assembly comprising: a sealing member that prevents liquid from entering the space.
  2. 　前記空間部は、前記工具アセンブリの内部に設けられる請求項１に記載の工具アセンブリ。 The tool assembly according to claim 1, wherein the space is provided inside the tool assembly.
  3. 　前記加工具は、第一端面と、前記第一端面の反対側に位置する第二端面とを有し、
    　前記保持具は、前記第一端面を支持する支持部を有し、
    　前記空間部は、前記第一端面に形成される請求項１又は２に記載の工具アセンブリ。     The processing tool has a first end surface and a second end surface located on the opposite side of the first end surface,
    The holder has a support part that supports the first end surface,
    The tool assembly according to claim 1 or 2, wherein the space portion is formed in the first end surface.
  4. 　前記加工具は、前記第一端面から前記第二端面まで形成される貫通孔を有し、
    　前記シール部材は、前記貫通孔を閉塞するように前記第二端面に設けられる請求項３に記載の工具アセンブリ。     The processing tool has a through hole formed from the first end surface to the second end surface,
    The tool assembly according to claim 3, wherein the seal member is provided on the second end surface so as to close the through hole.
  5. 　前記シール部材は、前記貫通孔を閉塞する蓋体と、前記蓋体と前記加工具の前記第二端面との間をシールするシール体とを備える請求項４に記載の工具アセンブリ。 The tool assembly according to claim 4, wherein the sealing member includes a lid that closes the through hole, and a seal that seals between the lid and the second end surface of the processing tool.
  6. 　前記保持具は、前記支持部の中央部に設けられる筒状部を有し、
    　前記蓋体は、前記筒状部に連結される連結部を有する請求項５に記載の工具アセンブリ。     The holder has a cylindrical part provided in the center of the support part,
    The tool assembly according to claim 5, wherein the lid has a connecting part connected to the cylindrical part.
  7. 　前記蓋体は、樹脂製である請求項５又は６に記載の工具アセンブリ。 The tool assembly according to claim 5 or 6, wherein the lid is made of resin.
  8. 　請求項１から７のいずれか一項に記載の工具アセンブリと、前記工具アセンブリを回転させる回転軸と、を備えることを特徴とする加工装置。 A processing device comprising: the tool assembly according to any one of claims 1 to 7; and a rotating shaft that rotates the tool assembly.
  9. 　請求項８に記載の加工装置によってガラス板の端面を加工する工程を備えることを特徴とするガラス板の製造方法。 A method for manufacturing a glass plate, comprising the step of processing an end surface of the glass plate using the processing apparatus according to claim 8.
PCT/JP2023/007561 2022-03-15 2023-03-01 Tool assembly, processing device, and glass plate production method WO2023176451A1 (en)

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JP2022040320A JP2023135223A (en) 2022-03-15 2022-03-15 Tool assembly, processing device, and manufacturing method of glass plate

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225154U (en) * 1985-07-29 1987-02-16
WO2020039940A1 (en) * 2018-08-22 2020-02-27 日本電気硝子株式会社 Method for manufacturing glass sheet, and tool for grindstone device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6225154U (en) * 1985-07-29 1987-02-16
WO2020039940A1 (en) * 2018-08-22 2020-02-27 日本電気硝子株式会社 Method for manufacturing glass sheet, and tool for grindstone device

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