WO2023176448A1 - 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
WO2023176448A1
WO2023176448A1 PCT/JP2023/007520 JP2023007520W WO2023176448A1 WO 2023176448 A1 WO2023176448 A1 WO 2023176448A1 JP 2023007520 W JP2023007520 W JP 2023007520W WO 2023176448 A1 WO2023176448 A1 WO 2023176448A1
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WO
WIPO (PCT)
Prior art keywords
processing
liquid
tool
space
flange portion
Prior art date
Application number
PCT/JP2023/007520
Other languages
French (fr)
Japanese (ja)
Inventor
大生 松永
愛信 星野
翔 北川
Original Assignee
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 WO2023176448A1 publication Critical patent/WO2023176448A1/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 the balance of rotation, and a liquid drain part for discharging liquid from the space.
  • the space portion may be provided inside the tool assembly. According to this configuration, it is possible to efficiently balance the rotation of the processing device. Even in such a case, the liquid that has reached the space can be appropriately drained by the drain section.
  • the liquid drainage portion may have a groove portion that guides the liquid. According to this configuration, by guiding the liquid through the groove, the liquid on the support part can be reliably discharged.
  • the groove portion of the liquid drainage portion may include a plurality of groove portions extending radially in a region where the holder and the processing tool overlap. According to this configuration, the liquid on the support part can be reliably discharged by the plurality of radially arranged grooves.
  • the drain portion may be formed to overlap the space portion. According to this configuration, the liquid that has reached the space can be reliably discharged by the liquid drain section.
  • 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 discharging the liquid that has reached the space of the tool assembly by the liquid draining section, it is possible to prevent this liquid from accumulating in the space. Thereby, 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 in 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.
  • FIG. 3 is a plan view of the holder. 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 sectional view of a processing device concerning a third embodiment.
  • It is a sectional view of a processing device concerning a fourth embodiment.
  • It is a sectional view of a processing device concerning a sixth embodiment.
  • FIG. 1 to 5 show an 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 5 for fixing the processing tool 2 to the holder 3, and a second fixture 6 for fixing the holder 3 to the spindle 4.
  • 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 a glass plate, and a main body section 8 that supports the processing section 7.
  • a processing section 7 grindstone section
  • 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 8 has a first end surface 8a formed at one end in the direction of the cylinder core, a second end surface 8b formed at the other end in the direction of the cylinder core, and a first end surface 8a through which a part of the holder 3 is inserted. It has a through hole 8c and a plurality of second through holes 8d into which the first fixture 5 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 provided in a region (range) where a part of the holder 3 and the first end surface 8a of the processing tool 2 overlap.
  • 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. 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.
  • 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 and a side wall surface 10b.
  • the first through hole 8c is formed in the center of the main body portion 8.
  • the second through hole 8d is formed at a position radially away from the center of the main body portion 8.
  • the second through hole 8d has a holding part 11 that holds a part of the first fixture 5 in the middle thereof.
  • the holder 3 includes 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 6.
  • 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, a fixing hole 16 into which a part of the first fixture 5 is fitted, and a grinding hole 14 into which the spindle 4 is inserted.
  • a drain section 17 for discharging liquid such as liquid, polishing liquid, etc. is provided.
  • 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 24 that holds a part of the second fixture 6 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 drain portion 17 is formed on the first surface 13a of the flange portion 13. As shown in FIG. 4, the drain portion 17 has grooves 18 to 20 that guide the liquid that has reached the first surface 13a of the flange portion 13 in a predetermined direction.
  • the grooves 18 to 20 include a first groove 18, a second groove 19, and a third groove 20.
  • the width of each groove 18 to 20 is preferably 1 to 15 mm.
  • the depth of each groove 18-20 is preferably 0.5-5 mm.
  • the first groove portion 18 is formed on the first surface 13a of the flange portion 13 so as to surround the cylindrical portion 12.
  • the first groove portion 18 is configured in an annular shape, but is not limited to this shape.
  • the first groove portion 18 is formed concentrically with the cylindrical portion 12 .
  • the diameter of the ring in the first groove portion 18 is larger than the outer diameter of the cylindrical portion 12 .
  • the second groove portion 19 includes a plurality of linear groove portions.
  • the plurality of second groove portions 19 are formed radially outward in the radial direction from the center (rotation center) of the flange portion 13 .
  • the plurality of second groove portions 19 are provided at a portion where the flange portion 13 of the holder and the first end surface 8a of the processing tool 2 overlap.
  • the angle ⁇ formed by two adjacent second groove portions 19 in the circumferential direction of the flange portion 13 is preferably 5 to 90°.
  • One end of each second groove 19 is connected to the first groove 18 .
  • the other end of each second groove portion 19 extends to the end surface 13c of the flange portion 13.
  • the third groove portion 20 like the second groove portion 19, is configured linearly and radially.
  • the third groove 20 is formed between two adjacent second grooves 19.
  • the third groove part 20 is not connected to the first groove part 18.
  • One end of the third groove 20 is connected to the fixing hole 16.
  • the other end of the third groove portion 20 extends to the end surface 13c of the flange portion 13.
  • each of the grooves 18 to 20 of the liquid draining part 17 drains the liquid such as the grinding fluid that has reached the first surface 13a of the flange part 13 to the holder 3 (flange part 13) that rotates together with the processing tool 2. It can be guided to the end surface 13c of the flange portion 13 by the centrifugal force acting on the flange portion 13.
  • the second groove portion 19 is preferably arranged so as to overlap the space portion 9c (indicated by the two-dot chain line) formed in the main body portion 8 of the processing tool 2. Thereby, it is possible to reliably prevent liquid from accumulating in the space 9c.
  • the space portion 9c does not need to overlap the second groove portion 19. That is, as shown by reference numeral 9c1 in FIG. 4, the space portion may be arranged so as to overlap the support surface 15 without overlapping the second groove portion 19. In this case, the support surface 15 closes the space 9c, but by draining the liquid on the flange 13 through the grooves 18 to 20, it is possible to prevent the liquid from entering the space 9c1.
  • 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 21 into which a part of the second fixture 6 is fitted is formed in the end surface of the shaft portion 4a.
  • the fixing hole 21 is configured 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 5 is composed of a bolt (for example, a hexagon socket head bolt). As shown in FIG. 1, the shaft portion 5a of the first fixture 5 is fitted into the fixing hole 16 of the holder 3. As shown in FIG. The head 5b of the first fixture 5 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 6 includes a bolt 22 (for example, a hexagon socket head bolt) and a holding plate 23.
  • the shaft portion 22a of the bolt 22 passes through the holding plate 23 and is fitted into the fixing hole 21 of the spindle 4.
  • the head 22b of the bolt 22 is supported by a holding plate 23.
  • the holding plate 23 is configured in a disc shape, and has a hole 23a in the center thereof, into which the shaft portion 22a of the bolt 22 is inserted. As shown in FIG. 1, the pressing plate 23 is supported by a holding part 24 formed between the cylindrical part 12 of the holder 3 and the shaft insertion hole 14.
  • 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 25 perform a grinding process on the glass plate G, and a second processing device 1B and the second supply device 26 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.
  • each processing step processes the end surface of the glass plate G by relatively moving the glass plate G, each processing device 1A, 1B, and each supply device 25, 26.
  • 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 25, 26.
  • 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 25, 26 while supporting the glass plate G by a surface plate without moving it.
  • the end surface of the glass plate G is ground by the processing tool 2 of the first processing device 1A that rotates around the rotation axis CR1 while the grinding fluid L1 is supplied to the processing tool 2 by the first supply device 25.
  • the first supply device 25 has a nozzle 25a arranged near the first processing device 1A. For example, water is used as the grinding liquid L1 spouted from the nozzle 25a.
  • 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 rotating around the rotation axis CR2 while supplying the polishing liquid L2 to the processing tool 2 by the second supply device 26.
  • the second supply device 26 has a nozzle 26a arranged near the second processing device 1B. For example, water is used as the polishing liquid L2 spouted from the nozzle 26a.
  • liquid such as grinding fluid or polishing fluid may enter the gap S between the first through hole 8c of the processing tool 2 and the cylindrical portion 12 of the holder 3.
  • the liquid reaches the first surface 13a of the flange portion 13 of the holder 3 through this gap S.
  • the liquid that has reached the first surface 13a is guided by each of the grooves 18 to 20 of the liquid drain section 17 and is discharged from the end surface 13c side of the flange section 13 to the outside. Therefore, it becomes difficult for liquid to accumulate in the space 9c of the processing tool 2, and it becomes possible to prevent the rotational balance of the processing tool 2 from deteriorating.
  • the present inventors conducted the following studies.
  • the first surface 13a of the flange portion 13 is connected to the first end surface 8a of the processing tool 2 (bottom surface 9a of the first recess 9).
  • the processing tool 2 is supported in a state of surface contact.
  • 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.
  • FIG. 6 shows a second embodiment of the present invention.
  • the processing device 1 according to the present embodiment differs from the first embodiment in the configuration of the drain portion 17 in the holder 3.
  • the grooves 18 to 20 in the first embodiment are not formed in the flange portion 13 of the holder 3 (hereinafter, the same applies to the third to fifth embodiments).
  • the drain portion 17 is configured by forming a thin portion between the first surface 13a and the end surface 13c of the flange portion 13.
  • the drain portion 17 has a groove portion 27 configured to have an annular shape in plan view along the circumferential direction of the flange portion 13 .
  • a portion of the groove portion 27 is arranged to overlap with the space portion 9c of the processing tool 2.
  • the groove portion 27 has a first guide surface 27a and a second guide surface 27b.
  • the first guide surface 27a is a surface formed along the axial direction of the holder 3.
  • the first guide surface 27a is a surface substantially parallel to the end surface 13c of the flange portion 13.
  • the first guide surface 27a is not limited to this configuration, and the first guide surface 27a may be a surface (tapered surface) that is inclined with respect to the axial direction of the holder 3.
  • One end of the first guide surface 27a is connected to the support surface 15 formed on the first surface 13a of the flange portion 13.
  • the other end of the first guide surface 27a is connected to the second guide surface 27b.
  • the first guide surface 27a is located closer to the center of the flange portion 13 than the space 9c of the processing tool 2.
  • the first guide surface 27a is not limited to this embodiment, and may be located, for example, so as to overlap the space 9c.
  • the second guide surface 27b is a surface that is approximately perpendicular to the first guide surface 27a.
  • the second guide surface 27b is a surface that is substantially parallel to the support surface 15 of the first surface 13a of the flange portion 13.
  • the angle formed by the second guide surface 27b and the first guide surface 27a is not limited to 90°.
  • One end of the second guide surface 27b in the radial direction of the flange portion 13 is connected to the first guide surface 27a.
  • the other end of the second guide surface 27b is connected to the end surface 13c of the flange portion 13.
  • the middle part of the second guide surface 27b is located away from the bottom surface 9a of the first recess 9 in the processing tool 2, and is located so as to overlap the space 9c of the processing tool 2.
  • the liquid that has reached the first surface 13a of the flange portion 13 is drained to the outside of the flange portion 13 by the groove portion 27 serving as the drain portion 17. It will be discharged. This makes it possible to prevent liquid from stagnation in the space 9c inside the tool assembly.
  • FIG. 7 shows a third embodiment of the present invention.
  • the drain section 17 of the processing device 1 according to the present embodiment has a tapered surface 28 formed between the first surface 13a and the end surface 13c of the flange section 13.
  • the tapered surface 28 is formed so as to overlap the space 9c of the processing tool 2 at a position away from the bottom surface 9a of the first recess 9 in the processing tool 2.
  • the liquid that has reached the first surface 13a of the flange portion 13 is guided to the tapered surface 28 that overlaps with the space portion 9c, and the liquid that has reached the first surface 13a of the flange portion 13 is It will be discharged outside. This makes it possible to prevent liquid from stagnation in the space 9c inside the tool assembly.
  • FIG. 8 shows a fourth embodiment of the present invention.
  • the drain portion 17 of the processing device 1 according to the present embodiment is formed by making the diameter of the flange portion 13 smaller than the diameter of the flange portion 13 in the first embodiment.
  • the diameter of the flange portion 13 is set to a size such that its end surface 13c overlaps the space portion 9c of the processing tool 2.
  • the drain portion 17 does not contact the part 15a of the support surface 15 that overlaps with the space 9c of the processing tool 2, and the bottom surface 9a of the first recess 9 of the processing tool 2, and drains the space 9c of the processing tool 2. and an end surface 13c of the flange portion 13 provided at a position overlapping with the end face 13c of the flange portion 13.
  • the liquid that has reached the first surface 13a of the flange portion 13 moves from the part 15a of the support surface 15 overlapping the space 9c to the end surface 13c.
  • the liquid is then discharged to the outside of the flange portion 13. This makes it possible to prevent liquid from stagnation in the space 9c inside the tool assembly.
  • FIG. 9 shows a fifth embodiment of the present invention.
  • the drain portion 17 of the processing device 1 according to the present embodiment has a hole 29 that penetrates the flange portion 13 in its thickness direction.
  • the hole 29 of the drain portion 17 is formed so as to overlap the space 9c of the processing tool 2.
  • the hole 29 penetrates from the first surface 13a to the second surface 13b of the flange portion 13, it is not limited to this configuration.
  • the hole 29 may penetrate from the first surface 13a of the flange portion 13 to the end surface 13c.
  • the liquid that has reached the first surface 13a of the flange portion 13 is transferred from the outside of the flange portion 13 (the second (the surface 13b side).
  • FIG. 10 shows a sixth embodiment of the present invention.
  • the processing device 1 according to this embodiment has a space 13d in the flange portion 13 of the holder 3.
  • the space portion 13d is constituted by a hole formed in the first surface 13a of the flange portion 13.
  • the drain portion 17 has first to third grooves formed in the first surface 13a of the flange portion 13, as in the first embodiment.
  • the second groove part 19 of the liquid drain part 17 is formed so as to overlap the space part 13d in the middle part thereof.
  • the processing tool 2 does not have a space formed therein, but the invention is not limited to this, and both the processing tool 2 and the holder 3 may have spaces formed therein.
  • the drain portion 17 is not limited to the groove portion, but may be configured by a through hole formed so as to be connected to the space portion 13d, similarly to the fifth embodiment.
  • the liquid that has reached the space 13d of the flange portion 13 passes through the liquid drain portion 17 to the flange portion due to the action of centrifugal force caused by the rotation of the tool assembly. 13 (second surface 13b side).
  • the fixing hole 16 formed in the flange portion 13 of the holder 3 may be configured as a hole that penetrates the flange portion 13 in its thickness direction.
  • the hole formed in this manner also functions as a liquid drain portion 17 for discharging the liquid that has reached the flange portion 13 to the outside of the flange portion 13.
  • drain portion 17 was provided on the flange portion 13 of the holder 3, but the present invention is not limited to this configuration.
  • a drainage portion such as a groove may be formed on the first end surface 8a of the processing tool 2.
  • Processing device 2 Processing tool 3 Holder 4 Spindle (rotating axis) 9c Space part 13 Flange part (support part) 13d Space part 17 Drain part 18 First groove part 19 Second groove part 20 Third groove part G Glass plate

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Surface Treatment Of Glass (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

This tool assembly comprises: a rotatable processing tool 2 for processing the end surfaces of a glass plate; and a rotatable holder 3 that holds the processing tool 2. The tool assembly further comprises: a cavity portion 9c that is used for balance adjustment and is provided to the holder 3 and/or the processing tool 2; and a liquid discharge portion 17 that discharges liquid in 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、前記空間部の液体を排出する排液部と、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 the balance of rotation, and a liquid drain part for discharging liquid from the space.
　かかる構成によれば、例えば研削加工や研磨加工の実行中に、研削液や研磨液等の液体が空間部に到達した場合であっても、この液体を排液部によって排出することで、この液体が空間部に溜まることを防止することができる。これにより、加工装置の回転バランスの悪化を確実に防止できる。 According to such a configuration, even if a liquid such as a grinding liquid or a polishing liquid reaches the space during grinding or polishing, the liquid can be discharged by the liquid drainage part, thereby eliminating the liquid. It is possible to prevent liquid from accumulating in the space. Thereby, 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、前記工具アセンブリ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、空間部に到達した液体を排液部によって適切に排出することができる。 In the tool assembly according to the present invention, the space portion may be provided inside the tool assembly. According to this configuration, it is possible to efficiently balance the rotation of the processing device. Even in such a case, the liquid that has reached the space can be appropriately drained by the drain section.
　本発明に係る工具アセンブリにおいて、前記排液部は、前記液体を案内する溝部を有してもよい。かかる構成によれば、溝部によって液体を案内することで、支持部上の液体を確実に排出することができる。 In the tool assembly according to the present invention, the liquid drainage portion may have a groove portion that guides the liquid. According to this configuration, by guiding the liquid through the groove, the liquid on the support part can be reliably discharged.
　本発明に係る工具アセンブリにおいて、前記排液部の前記溝部は、前記保持具と前記加工具とが重なる部位において放射状に延びる複数の溝部を含んでもよい。かかる構成によれば、放射状に構成される複数の溝部によって、支持部上の液体を確実に排出することができる。 In the tool assembly according to the present invention, the groove portion of the liquid drainage portion may include a plurality of groove portions extending radially in a region where the holder and the processing tool overlap. According to this configuration, the liquid on the support part can be reliably discharged by the plurality of radially arranged grooves.
　本発明に係る工具アセンブリにおいて、前記排液部は、前記空間部と重なるように形成されてもよい。かかる構成によれば、空間部に到達した液体を排液部によって確実に排出することができる。 In the tool assembly according to the present invention, the drain portion may be formed to overlap the space portion. According to this configuration, the liquid that has reached the space can be reliably discharged by the liquid drain section.
　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、工具アセンブリの空間部に到達した液体を排液部によって排出することで、この液体が空間部に溜まることを防止することができる。これにより、加工装置の回転バランスの悪化を確実に防止できる。 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 discharging the liquid that has reached the space of the tool assembly by the liquid draining section, it is possible to prevent this liquid from accumulating in the space. Thereby, 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、加工装置における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 in 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. 保持具の平面図である。FIG. 3 is a plan view of the holder. 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. 第三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 third embodiment. 第四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 fourth embodiment. 第五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 fifth embodiment. 第六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 sixth embodiment.
　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５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 5 show an 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５と、保持具３をスピンドル４に固定する第二固定具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 5 for fixing the processing tool 2 to the holder 3, and a second fixture 6 for fixing the holder 3 to the spindle 4. 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、ガラス板を加工するための加工部７（砥石部）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 a glass plate, 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、筒心方向の他端部に形成される第二端面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５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 8 has a first end surface 8a formed at one end in the direction of the cylinder core, a second end surface 8b formed at the other end in the direction of the cylinder core, and a first end surface 8a through which a part of the holder 3 is inserted. It has a through hole 8c and a plurality of second through holes 8d into which the first fixture 5 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、保持具３の一部と加工具２の第一端面８ａとが重なる部位（範囲）に設けられている。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 provided in a region (range) where a part of the holder 3 and the first end surface 8a of the processing tool 2 overlap. 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、底面１０ａと側壁面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 and a side wall surface 10b.
　第一貫通孔８ｃは、本体部８の中心部に形成されている。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。第二貫通孔８ｄは、その中途部に、第一固定具５の一部を保持する保持部１１を有する。 The first through hole 8c is formed in the center of the main body portion 8. The second through hole 8d is formed at a position radially away from the center of the main body portion 8. The second through hole 8d has a holding part 11 that holds a part of the first fixture 5 in the middle thereof.
　図１、図３及び図４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, 3, and 4, the holder 3 includes 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６を収容することが可能な内部空間を有する。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 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 6. 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５の一部が嵌まる固定穴１６と、研削液、研磨液等の液体を排出する排液部１７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, a fixing hole 16 into which a part of the first fixture 5 is fitted, and a grinding hole 14 into which the spindle 4 is inserted. A drain section 17 for discharging liquid such as liquid, polishing liquid, etc. is provided.
　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６の一部を保持する保持部２４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 24 that holds a part of the second fixture 6 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.
　排液部１７は、フランジ部１３の第一の面１３ａに形成されている。図４に示すように、排液部１７は、フランジ部１３の第一の面１３ａ上に到達した液体を所定の方向に案内する溝部１８～２０を有する。 The drain portion 17 is formed on the first surface 13a of the flange portion 13. As shown in FIG. 4, the drain portion 17 has grooves 18 to 20 that guide the liquid that has reached the first surface 13a of the flange portion 13 in a predetermined direction.
　溝部１８～２０は、第一溝部１８と、第二溝部１９と、第三溝部２０と、を含む。各溝部１８～２０の幅寸法は、１～１５ｍｍであることが好ましい。各溝部１８～２０の深さ寸法は、０．５～５ｍｍであることが好ましい。 The grooves 18 to 20 include a first groove 18, a second groove 19, and a third groove 20. The width of each groove 18 to 20 is preferably 1 to 15 mm. The depth of each groove 18-20 is preferably 0.5-5 mm.
　第一溝部１８は、フランジ部１３の第一の面１３ａにおいて筒状部１２の周りを囲むように形成される。第一溝部１８は、円環状に構成されるが、この形状に限定されない。第一溝部１８は、筒状部１２と同心状に形成されている。第一溝部１８における環の直径は、筒状部１２の外径よりも大きい。 The first groove portion 18 is formed on the first surface 13a of the flange portion 13 so as to surround the cylindrical portion 12. The first groove portion 18 is configured in an annular shape, but is not limited to this shape. The first groove portion 18 is formed concentrically with the cylindrical portion 12 . The diameter of the ring in the first groove portion 18 is larger than the outer diameter of the cylindrical portion 12 .
　第二溝部１９は、直線状に構成される複数の溝部を含む。複数の第二溝部１９は、フランジ部１３の中心（回転中心）から半径方向の外方に向かって放射状に形成されている。複数の第二溝部１９は、保持具のフランジ部１３と加工具２の第一端面８ａとが重なる部位に設けられている。フランジ部１３の円周方向において隣り合う二つの第二溝部１９が為す角度θは、５～９０°であることが好ましい。各第二溝部１９の一端部は、第一溝部１８と繋がっている。各第二溝部１９の他端部は、フランジ部１３の端面１３ｃまで延びている。 The second groove portion 19 includes a plurality of linear groove portions. The plurality of second groove portions 19 are formed radially outward in the radial direction from the center (rotation center) of the flange portion 13 . The plurality of second groove portions 19 are provided at a portion where the flange portion 13 of the holder and the first end surface 8a of the processing tool 2 overlap. The angle θ formed by two adjacent second groove portions 19 in the circumferential direction of the flange portion 13 is preferably 5 to 90°. One end of each second groove 19 is connected to the first groove 18 . The other end of each second groove portion 19 extends to the end surface 13c of the flange portion 13.
　第三溝部２０は、第二溝部１９と同様に、直線状かつ放射状に構成されている。第三溝部２０は、隣り合う二つの第二溝部１９の間に形成されている。第三溝部２０は、第一溝部１８と繋がっていない。第三溝部２０の一端部は、固定穴１６と繋がっている。第三溝部２０の他端部は、フランジ部１３の端面１３ｃまで延びている。 The third groove portion 20, like the second groove portion 19, is configured linearly and radially. The third groove 20 is formed between two adjacent second grooves 19. The third groove part 20 is not connected to the first groove part 18. One end of the third groove 20 is connected to the fixing hole 16. The other end of the third groove portion 20 extends to the end surface 13c of the flange portion 13.
　上記の構成により、排液部１７の各溝部１８～２０は、フランジ部１３の第一の面１３ａに到達した研削液等の液体を、加工具２とともに回転する保持具３（フランジ部１３）に作用する遠心力によってフランジ部１３の端面１３ｃまで案内することができる。 With the above configuration, each of the grooves 18 to 20 of the liquid draining part 17 drains the liquid such as the grinding fluid that has reached the first surface 13a of the flange part 13 to the holder 3 (flange part 13) that rotates together with the processing tool 2. It can be guided to the end surface 13c of the flange portion 13 by the centrifugal force acting on the flange portion 13.
　図４に示すように、第二溝部１９は、加工具２の本体部８に形成される空間部９ｃ（二点鎖線で示す）と重なるように配置されることが好ましい。これにより、空間部９ｃに液体が溜まることを確実に防止できる。 As shown in FIG. 4, the second groove portion 19 is preferably arranged so as to overlap the space portion 9c (indicated by the two-dot chain line) formed in the main body portion 8 of the processing tool 2. Thereby, it is possible to reliably prevent liquid from accumulating in the space 9c.
　上記の構成に限らず、空間部９ｃは、第二溝部１９と重なっていなくてもよい。すなわち、図４において符号９ｃ１で示すように、空間部を第二溝部１９と重ならせずに、支持面１５と重なるように配置してもよい。この場合、支持面１５は、空間部９ｃを閉塞するが、溝部１８～２０によってフランジ部１３上の液体を排出することで、空間部９ｃ１への液体の侵入を防止することができる。 The configuration is not limited to the above, and the space portion 9c does not need to overlap the second groove portion 19. That is, as shown by reference numeral 9c1 in FIG. 4, the space portion may be arranged so as to overlap the support surface 15 without overlapping the second groove portion 19. In this case, the support surface 15 closes the space 9c, but by draining the liquid on the flange 13 through the grooves 18 to 20, it is possible to prevent the liquid from entering the space 9c1.
　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６の一部が嵌まる固定穴２１が形成されている。固定穴２１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 21 into which a part of the second fixture 6 is fitted is formed in the end surface of the shaft portion 4a. The fixing hole 21 is configured 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５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５の軸部５ａは、保持具３の固定穴１６に嵌まっている。第一固定具５の頭部５ｂは、第二貫通孔８ｄの保持部１１に支持されている。 The first fixture 5 is composed of a bolt (for example, a hexagon socket head bolt). As shown in FIG. 1, the shaft portion 5a of the first fixture 5 is fitted into the fixing hole 16 of the holder 3. As shown in FIG. The head 5b of the first fixture 5 is supported by the holding part 11 of the second through hole 8d.
　第二固定具６は、ボルト２２（例えば六角穴付ボルト）と、押さえ板２３とを含む。ボルト２２は、その軸部２２ａが押さえ板２３を貫通すると共に、スピンドル４の固定穴２１に嵌まっている。ボルト２２の頭部２２ｂは、押さえ板２３によって支持されている。 The second fixture 6 includes a bolt 22 (for example, a hexagon socket head bolt) and a holding plate 23. The shaft portion 22a of the bolt 22 passes through the holding plate 23 and is fitted into the fixing hole 21 of the spindle 4. The head 22b of the bolt 22 is supported by a holding plate 23.
　押さえ板２３は、円板状に構成されるとともに、その中心部に、ボルト２２の軸部２２ａが挿通される孔２３ａを有する。図１に示すように、押さえ板２３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２４に支持されている。 The holding plate 23 is configured in a disc shape, and has a hole 23a in the center thereof, into which the shaft portion 22a of the bolt 22 is inserted. As shown in FIG. 1, the pressing plate 23 is supported by a holding part 24 formed between the cylindrical part 12 of the holder 3 and the shaft insertion hole 14.
　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５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. 5.
　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２５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２６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 25 perform a grinding process on the glass plate G, and a second processing device 1B and the second supply device 26 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、各加工工程は、ガラス板Ｇと、各加工装置１Ａ，１Ｂ及び各供給装置２５，２６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２５，２６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２５，２６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, each processing step processes the end surface of the glass plate G by relatively moving the glass plate G, each processing device 1A, 1B, and each supply device 25, 26. 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 25, 26. 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 25, 26 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２５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２５は、第一加工装置１Ａの近傍位置に配されるノズル２５ａを有する。ノズル２５ａ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 surface of the glass plate G is ground by the processing tool 2 of the first processing device 1A that rotates around the rotation axis CR1 while the grinding fluid L1 is supplied to the processing tool 2 by the first supply device 25. . The first supply device 25 has a nozzle 25a arranged near the first processing device 1A. For example, water is used as the grinding liquid L1 spouted from the nozzle 25a.
　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２６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２６は、第二加工装置１Ｂの近傍位置に配されるノズル２６ａを有する。ノズル２６ａ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 rotating around the rotation axis CR2 while supplying the polishing liquid L2 to the processing tool 2 by the second supply device 26. . The second supply device 26 has a nozzle 26a arranged near the second processing device 1B. For example, water is used as the polishing liquid L2 spouted from the nozzle 26a.
　上記の各加工工程の実行中において、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に研削液、研磨液等の液体が入る場合がある。液体は、この隙間Ｓを通じて保持具３におけるフランジ部１３の第一の面１３ａに到達する。第一の面１３ａに到達した液体は、排液部１７の各溝部１８～２０によって案内され、フランジ部１３の端面１３ｃ側から外部に排出される。したがって、加工具２の空間部９ｃに液体が溜まり難くなり、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 machining steps, liquid such as grinding fluid or polishing fluid may enter the gap S between the first through hole 8c of the processing tool 2 and the cylindrical portion 12 of the holder 3. The liquid reaches the first surface 13a of the flange portion 13 of the holder 3 through this gap S. The liquid that has reached the first surface 13a is guided by each of the grooves 18 to 20 of the liquid drain section 17 and is discharged from the end surface 13c side of the flange section 13 to the outside. Therefore, it becomes difficult for liquid to accumulate in the space 9c of the processing tool 2, and it becomes 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。保持具３のフランジ部１３に排液部１７が設けられていない場合には、フランジ部１３は、第一の面１３ａ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、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. When the flange portion 13 of the holder 3 is not provided with the drain portion 17, the first surface 13a of the flange portion 13 is connected to the first end surface 8a of the processing tool 2 (bottom surface 9a of the first recess 9). The processing tool 2 is supported in a state of surface contact. 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 liquid nevertheless accumulates in the space 9c. There was a case.
　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、この現象を解消するために、本発明を創作するに至った。 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 have confirmed the phenomenon of liquid entering and staying in the space 9c, and have created the present invention in order to solve this phenomenon.
　図６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、保持具３における排液部１７の構成が第一実施形態と異なる。本実施形態において、保持具３のフランジ部１３には、第一実施形態における溝部１８～２０が形成されていない（以下、第三実施形態乃至第五実施形態において同じ）。 FIG. 6 shows a second embodiment of the present invention. The processing device 1 according to the present embodiment differs from the first embodiment in the configuration of the drain portion 17 in the holder 3. In this embodiment, the grooves 18 to 20 in the first embodiment are not formed in the flange portion 13 of the holder 3 (hereinafter, the same applies to the third to fifth embodiments).
　本実施形態において、排液部１７は、フランジ部１３の第一の面１３ａと端面１３ｃとの間に薄肉部を形成することにより構成される。排液部１７は、フランジ部１３の円周方向に沿って平面視環状に構成される溝部２７を有する。溝部２７の一部は、加工具２の空間部９ｃと重なるように配置される。溝部２７は、第一案内面２７ａと、第二案内面２７ｂとを有する。 In the present embodiment, the drain portion 17 is configured by forming a thin portion between the first surface 13a and the end surface 13c of the flange portion 13. The drain portion 17 has a groove portion 27 configured to have an annular shape in plan view along the circumferential direction of the flange portion 13 . A portion of the groove portion 27 is arranged to overlap with the space portion 9c of the processing tool 2. The groove portion 27 has a first guide surface 27a and a second guide surface 27b.
　第一案内面２７ａは、保持具３の軸方向に沿うように形成される面である。換言すると、第一案内面２７ａは、フランジ部１３の端面１３ｃとほぼ平行な面である。この構成に限らず、第一案内面２７ａは、保持具３の軸方向に対して傾斜する面（テーパ面）であってもよい。第一案内面２７ａの一端部は、フランジ部１３の第一の面１３ａに形成される支持面１５と繋がっている。第一案内面２７ａの他端部は、第二案内面２７ｂと繋がっている。 The first guide surface 27a is a surface formed along the axial direction of the holder 3. In other words, the first guide surface 27a is a surface substantially parallel to the end surface 13c of the flange portion 13. The first guide surface 27a is not limited to this configuration, and the first guide surface 27a may be a surface (tapered surface) that is inclined with respect to the axial direction of the holder 3. One end of the first guide surface 27a is connected to the support surface 15 formed on the first surface 13a of the flange portion 13. The other end of the first guide surface 27a is connected to the second guide surface 27b.
　第一案内面２７ａは、加工具２の空間部９ｃよりもフランジ部１３の中心側に位置している。第一案内面２７ａは、本実施形態に限定されず、例えば空間部９ｃと重なるように位置してもよい。 The first guide surface 27a is located closer to the center of the flange portion 13 than the space 9c of the processing tool 2. The first guide surface 27a is not limited to this embodiment, and may be located, for example, so as to overlap the space 9c.
　第二案内面２７ｂは、第一案内面２７ａと略直角を為す面である。換言すると、第二案内面２７ｂは、フランジ部１３に係る第一の面１３ａの支持面１５と略平行な面である。第二案内面２７ｂと第一案内面２７ａとが為す角度は、９０°に限定されない。フランジ部１３の半径方向における第二案内面２７ｂの一端部は、第一案内面２７ａと繋がっている。第二案内面２７ｂの他端部は、フランジ部１３の端面１３ｃと繋がっている。第二案内面２７ｂの中途部は、加工具２における第一凹部９の底面９ａから離れた位置で、加工具２の空間部９ｃと重なるように位置している。 The second guide surface 27b is a surface that is approximately perpendicular to the first guide surface 27a. In other words, the second guide surface 27b is a surface that is substantially parallel to the support surface 15 of the first surface 13a of the flange portion 13. The angle formed by the second guide surface 27b and the first guide surface 27a is not limited to 90°. One end of the second guide surface 27b in the radial direction of the flange portion 13 is connected to the first guide surface 27a. The other end of the second guide surface 27b is connected to the end surface 13c of the flange portion 13. The middle part of the second guide surface 27b is located away from the bottom surface 9a of the first recess 9 in the processing tool 2, and is located so as to overlap the space 9c of the processing tool 2.
　本実施形態に係る加工装置１によれば、加工工程の実行中において、フランジ部１３の第一の面１３ａに到達した液体は、排液部１７としての溝部２７によって、フランジ部１３の外部に排出されることになる。これにより、工具アセンブリの内部にある空間部９ｃにおける液体の滞留を防止することができる。 According to the processing device 1 according to the present embodiment, during the execution of the processing process, the liquid that has reached the first surface 13a of the flange portion 13 is drained to the outside of the flange portion 13 by the groove portion 27 serving as the drain portion 17. It will be discharged. This makes it possible to prevent liquid from stagnation in the space 9c inside the tool assembly.
　図７は、本発明の第三実施形態を示す。本実施形態に係る加工装置１の排液部１７は、フランジ部１３の第一の面１３ａと端面１３ｃとの間に形成されたテーパ面２８を有する。テーパ面２８は、加工具２における第一凹部９の底面９ａから離れた位置で、加工具２の空間部９ｃと重なるように形成されている。 FIG. 7 shows a third embodiment of the present invention. The drain section 17 of the processing device 1 according to the present embodiment has a tapered surface 28 formed between the first surface 13a and the end surface 13c of the flange section 13. The tapered surface 28 is formed so as to overlap the space 9c of the processing tool 2 at a position away from the bottom surface 9a of the first recess 9 in the processing tool 2.
　本実施形態に係る加工装置１によれば、加工工程の実行中において、フランジ部１３の第一の面１３ａに到達した液体は、空間部９ｃと重なるテーパ面２８に案内され、フランジ部１３の外部に排出されることになる。これにより、工具アセンブリの内部にある空間部９ｃにおける液体の滞留を防止することができる。 According to the processing apparatus 1 according to the present embodiment, during the execution of the processing process, the liquid that has reached the first surface 13a of the flange portion 13 is guided to the tapered surface 28 that overlaps with the space portion 9c, and the liquid that has reached the first surface 13a of the flange portion 13 is It will be discharged outside. This makes it possible to prevent liquid from stagnation in the space 9c inside the tool assembly.
　図８は、本発明の第四実施形態を示す。本実施形態に係る加工装置１の排液部１７は、フランジ部１３の直径を第一実施形態におけるフランジ部１３の直径よりも小さくすることによって形成される。フランジ部１３の直径は、その端面１３ｃが加工具２の空間部９ｃと重なるような大きさに設定されている。すなわち、排液部１７は、加工具２の空間部９ｃと重なる支持面１５の一部１５ａと、加工具２の第一凹部９における底面９ａと接触することなく、加工具２の空間部９ｃと重なる位置に設けられるフランジ部１３の端面１３ｃとにより構成される。 FIG. 8 shows a fourth embodiment of the present invention. The drain portion 17 of the processing device 1 according to the present embodiment is formed by making the diameter of the flange portion 13 smaller than the diameter of the flange portion 13 in the first embodiment. The diameter of the flange portion 13 is set to a size such that its end surface 13c overlaps the space portion 9c of the processing tool 2. In other words, the drain portion 17 does not contact the part 15a of the support surface 15 that overlaps with the space 9c of the processing tool 2, and the bottom surface 9a of the first recess 9 of the processing tool 2, and drains the space 9c of the processing tool 2. and an end surface 13c of the flange portion 13 provided at a position overlapping with the end face 13c of the flange portion 13.
　本実施形態に係る加工装置１によれば、加工工程の実行中において、フランジ部１３の第一の面１３ａに到達した液体は、空間部９ｃに重なる支持面１５の一部１５ａから端面１３ｃを伝ってフランジ部１３の外部に排出されることになる。これにより、工具アセンブリの内部にある空間部９ｃにおける液体の滞留を防止することができる。 According to the processing apparatus 1 according to the present embodiment, during execution of the processing process, the liquid that has reached the first surface 13a of the flange portion 13 moves from the part 15a of the support surface 15 overlapping the space 9c to the end surface 13c. The liquid is then discharged to the outside of the flange portion 13. This makes it possible to prevent liquid from stagnation in the space 9c inside the tool assembly.
　図９は、本発明の第五実施形態を示す。本実施形態に係る加工装置１の排液部１７は、フランジ部１３をその厚さ方向に貫通する孔２９を有する。排液部１７の孔２９は、加工具２の空間部９ｃと重なるように形成されている。孔２９は、フランジ部１３の第一の面１３ａから第二の面１３ｂまで貫通しているが、この構成に限定されない。孔２９は、フランジ部１３の第一の面１３ａから端面１３ｃまで貫通するものであってもよい。 FIG. 9 shows a fifth embodiment of the present invention. The drain portion 17 of the processing device 1 according to the present embodiment has a hole 29 that penetrates the flange portion 13 in its thickness direction. The hole 29 of the drain portion 17 is formed so as to overlap the space 9c of the processing tool 2. Although the hole 29 penetrates from the first surface 13a to the second surface 13b of the flange portion 13, it is not limited to this configuration. The hole 29 may penetrate from the first surface 13a of the flange portion 13 to the end surface 13c.
　本実施形態に係る加工装置１によれば、加工工程の実行中において、フランジ部１３の第一の面１３ａに到達した液体は、排液部１７の孔２９からフランジ部１３の外部（第二の面１３ｂ側）に排出されることになる。 According to the processing apparatus 1 according to the present embodiment, during the execution of the processing process, the liquid that has reached the first surface 13a of the flange portion 13 is transferred from the outside of the flange portion 13 (the second (the surface 13b side).
　図１０は、本発明の第六実施形態を示す。本実施形態に係る加工装置１は、保持具３のフランジ部１３に空間部１３ｄを有する。空間部１３ｄは、フランジ部１３の第一の面１３ａに形成される穴により構成される。排液部１７は、第一実施形態と同様に、フランジ部１３の第一の面１３ａに形成される第一溝部乃至第三溝部を有する。排液部１７の第二溝部１９は、その中途部において、空間部１３ｄと重なるように形成されている。 FIG. 10 shows a sixth embodiment of the present invention. The processing device 1 according to this embodiment has a space 13d in the flange portion 13 of the holder 3. The space portion 13d is constituted by a hole formed in the first surface 13a of the flange portion 13. The drain portion 17 has first to third grooves formed in the first surface 13a of the flange portion 13, as in the first embodiment. The second groove part 19 of the liquid drain part 17 is formed so as to overlap the space part 13d in the middle part thereof.
　なお、本実施形態において、加工具２には、空間部が形成されていないが、これに限らず、加工具２と保持具３の双方に空間部が形成されていてもよい。また、排液部１７は、溝部に限らず、第五実施形態と同様に、空間部１３ｄに繋がるように形成される貫通孔により構成されてもよい。 Note that in this embodiment, the processing tool 2 does not have a space formed therein, but the invention is not limited to this, and both the processing tool 2 and the holder 3 may have spaces formed therein. Further, the drain portion 17 is not limited to the groove portion, but may be configured by a through hole formed so as to be connected to the space portion 13d, similarly to the fifth embodiment.
　本実施形態に係る加工装置１によれば、加工工程の実行中において、フランジ部１３の空間部１３ｄに到達した液体は、工具アセンブリの回転による遠心力の作用により、排液部１７を通じてフランジ部１３の外部（第二の面１３ｂ側）に排出されることになる。 According to the machining device 1 according to the present embodiment, during execution of the machining process, the liquid that has reached the space 13d of the flange portion 13 passes through the liquid drain portion 17 to the flange portion due to the action of centrifugal force caused by the rotation of the tool assembly. 13 (second surface 13b side).
　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.
　上記の実施形態において、保持具３のフランジ部１３に形成された固定穴１６は、フランジ部１３をその厚さ方向に貫通する孔として構成してもよい。このように形成された孔は、フランジ部１３に到達した液体をフランジ部１３の外部に排出する排液部１７としても機能することになる。 In the above embodiment, the fixing hole 16 formed in the flange portion 13 of the holder 3 may be configured as a hole that penetrates the flange portion 13 in its thickness direction. The hole formed in this manner also functions as a liquid drain portion 17 for discharging the liquid that has reached the flange portion 13 to the outside of the flange portion 13.
　上記の実施形態では、保持具３のフランジ部１３に排液部１７を設けた例を示したが、本発明はこの構成に限定されない。例えば、加工具２の第一端面８ａに溝部等の排液部を形成してもよい。 In the above embodiment, an example was shown in which the drain portion 17 was provided on the flange portion 13 of the holder 3, but the present invention is not limited to this configuration. For example, a drainage portion such as a groove may be formed on the first end surface 8a of the processing tool 2.
　１　　　　　　加工装置
　２　　　　　　加工具
　３　　　　　　保持具
　４　　　　　　スピンドル（回転軸）
　９ｃ　　　　　空間部
１３　　　　　　フランジ部（支持部）
１３ｄ　　　　　空間部
１７　　　　　　排液部
１８　　　　　　第一溝部
１９　　　　　　第二溝部
２０　　　　　　第三溝部
　Ｇ　　　　　　ガラス板 1 Processing device 2 Processing tool 3 Holder 4 Spindle (rotating axis)
9c Space part 13 Flange part (support part)
13d Space part 17 Drain part 18 First groove part 19 Second groove part 20 Third groove part G Glass plate

Claims (7)

  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、
    　前記空間部の液体を排出する排液部と、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 liquid drain portion that drains liquid from 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. 　前記排液部は、前記液体を案内する溝部を有する請求項１又は２に記載の工具アセンブリ。 The tool assembly according to claim 1 or 2, wherein the liquid drainage portion has a groove portion that guides the liquid.
  4. 　前記排液部の前記溝部は、前記保持具と前記加工具とが重なる部位において放射状に延びる複数の溝部を含む請求項３に記載の工具アセンブリ。 The tool assembly according to claim 3, wherein the groove portion of the liquid drainage portion includes a plurality of groove portions that extend radially at a portion where the holder and the processing tool overlap.
  5. 　前記排液部は、前記空間部と重なるように形成される請求項１から４のいずれか一項に記載の工具アセンブリ。 The tool assembly according to any one of claims 1 to 4, wherein the drain portion is formed to overlap the space portion.
  6. 　請求項１から５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 5; and a rotating shaft that rotates the tool assembly.
  7. 　請求項６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 6.
PCT/JP2023/007520 2022-03-15 2023-03-01 Tool assembly, processing device, and glass plate production method WO2023176448A1 (en)

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Application Number Priority Date Filing Date Title
JP2022-040323 2022-03-15
JP2022040323A JP2023135224A (en) 2022-03-15 2022-03-15 Tool assembly, processing device, and manufacturing method of glass plate

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178567U (en) * 1984-05-07 1985-11-27 株式会社小松製作所 Grinding device
JPS6225154U (en) * 1985-07-29 1987-02-16
JP2000084809A (en) * 1998-09-14 2000-03-28 Tokyo Seimitsu Co Ltd Grinding wheel fitting structure
JP2000141191A (en) * 1998-11-02 2000-05-23 Tokyo Seimitsu Co Ltd Grinding wheel mounting method for wafer chamfering device
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178567U (en) * 1984-05-07 1985-11-27 株式会社小松製作所 Grinding device
JPS6225154U (en) * 1985-07-29 1987-02-16
JP2000084809A (en) * 1998-09-14 2000-03-28 Tokyo Seimitsu Co Ltd Grinding wheel fitting structure
JP2000141191A (en) * 1998-11-02 2000-05-23 Tokyo Seimitsu Co Ltd Grinding wheel mounting method for wafer chamfering device
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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