EP4151364B1 - Speziell geformte räder mit positiver korrelationswasserdurchgangsstruktur für vollschleifenfläche - Google Patents

Speziell geformte räder mit positiver korrelationswasserdurchgangsstruktur für vollschleifenfläche Download PDF

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Publication number
EP4151364B1
EP4151364B1 EP21804106.9A EP21804106A EP4151364B1 EP 4151364 B1 EP4151364 B1 EP 4151364B1 EP 21804106 A EP21804106 A EP 21804106A EP 4151364 B1 EP4151364 B1 EP 4151364B1
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EP
European Patent Office
Prior art keywords
base
water passing
grinding
cushion block
special
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21804106.9A
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English (en)
French (fr)
Other versions
EP4151364A1 (de
EP4151364A4 (de
Inventor
Jingxin SONG
Yong YE
Huiling LONG
Xinling GUO
Anning LIANG
Zhiyong Wang
Renjie Liu
Fengming Qin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guilin Champion Union Diamond Co Ltd
Original Assignee
Guilin Champion Union Diamond Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202020813772.8U external-priority patent/CN212218224U/zh
Priority claimed from CN202010414824.9A external-priority patent/CN111590476B/zh
Application filed by Guilin Champion Union Diamond Co Ltd filed Critical Guilin Champion Union Diamond Co Ltd
Publication of EP4151364A1 publication Critical patent/EP4151364A1/de
Publication of EP4151364A4 publication Critical patent/EP4151364A4/de
Application granted granted Critical
Publication of EP4151364B1 publication Critical patent/EP4151364B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions

Definitions

  • the present invention relates to the technical field of abrasive wheel tools, and more particularly to a special-shaped wheel having a water passing structure positively correlated with a full grinding surface.
  • the water passing holes 10 are circumferentially formed in a base of a special-shaped wheel (i.e., an abrasive wheel) in the prior art. As shown by a mark C in FIG. 2 , cooling may be performed through the several water passing holes 10. However, due to the small number of water passing holes 10 and the limited water output, an internal cooling mode cannot be formed in an entire grinding process. As shown by a mark D in FIG. 2 , the water passing holes 10 are generally formed in a circumference of an axial middle portion of a grinding region of the abrasive wheel and cannot axially cover the entire grinding region, and an axial length of each water passing hole 10 is smaller than an axial length of the grinding region.
  • the machining workpiece when a machining workpiece initially contacts the abrasive wheel or will be separated from the abrasive wheel, the machining workpiece cannot be cooled or can only be slightly cooled if a contact point is not in a region axially covered by the water passing holes 10.
  • the water passing hole 10 generally is circular, such that the water flow at upper and lower ends of the abrasive wheel is relatively small.
  • it is very difficult to cool a small-diameter region of the abrasive wheel due to an adverse effect of a centrifugal force. Since an airflow barrier will be formed during high-speed rotation of the abrasive wheel, the high-speed grinding problem will be more severe under the action of the airflow barrier.
  • US 3 683 566 A shows an abrasive wheel comprising water passing grooves axially covering the entire grinding surface, communicating from an inner side of the base with the grinding surface.
  • WO 2019/174580 discloses a grinding wheel's groove with a concave portion through which cooling water may flow, but not covering the entire axial grinding length.
  • the arc length of each point in the axial direction of the grinding structure may be positively related to the processing amount at the point.
  • the technical problem to be solved by the present invention is to provide a special-shaped wheel having a water passing structure positively correlated with a full grinding surface.
  • a special-shaped wheel having a water passing structure positively correlated with a full grinding surface includes a base; a grinding layer is attached to an outer wall of the base, and an outer circumferential surface of the grinding layer is a grinding surface; a water inlet is formed in a top surface of the base, and a connection hole for connecting an external device is formed in a bottom surface of the base.
  • the special-shaped wheel further includes a plurality of water passing grooves; the plurality of water passing grooves is densely formed around the base by taking a central axis of the base as an axis, communicates an inner side of the base with the grinding surface, and axially covers the entire grinding surface.
  • the axial height of an opening of the water passing groove covers the axial height of a grinded region of a machining workpiece, and the total length of accumulated circumferences of the corresponding water passing grooves at respective axial grinding points of the grinding surface is set in positive correlation with the grinding area of the grinding point.
  • the above-mentioned positive correlation refers to that a dependent variable increases along with the increase of an independent variable.
  • an opening of the water passing groove at each axial point is in positive correlation with a machining allowance (the grinding area of this point). That is, the larger the machining allowance, the larger the opening of the water passing groove.
  • the present invention may further include the following improvements.
  • the total length of the accumulated circumferences of the corresponding water passing grooves at the respective axial points of the grinding surface is n ⁇ Wi, wherein i refers to the grinding point on the grinding surface, n refers to the number of water passing grooves, and Wi refers to an opening width of the corresponding water passing groove at the grinding point i.
  • the grinding area of the point i is set as S, such that the total length of accumulated circumferences (n ⁇ Wi) is proportional to the grinding area S.
  • the present invention has the following beneficial effects.
  • a special-shaped wheel having a water passing structure positively correlated with a full grinding surface includes a base 1; a grinding layer is attached to an outer wall of the base 1, and an outer circumferential surface of the grinding layer is a grinding surface 101; a water inlet is formed in a top surface of the base 1, and a connection hole for connecting an external device is formed in a bottom surface of the base 1.
  • the special-shaped wheel further includes a plurality of water passing grooves 2; the plurality of water passing grooves 2 is densely formed around the base 1 by taking a central axis of the base 1 as an axis, communicates an inner side of the base 1 with the grinding surface 101, and axially covers the entire grinding surface 101.
  • the axial height of an opening of the water passing groove 2 covers the axial height of a grinded region of a machining workpiece 10, and the total length of accumulated circumferences of the corresponding water passing grooves 2 at respective axial grinding points of the grinding surface 101 is set in positive correlation with the grinding area of the grinding point.
  • the total length of accumulated circumferences of the corresponding water passing grooves 2 at respective axial points of the grinding surface 101 is n ⁇ Wi, wherein i refers to the grinding point on the grinding surface 101, n refers to the number of water passing grooves 2, and Wi refers to an opening width of the corresponding water passing groove 2 at the grinding point i.
  • the grinding area of the point i is set as S, such that the total length of accumulated circumferences (n ⁇ Wi) is proportional to the grinding area S.
  • the opening of the water passing groove gradually widens from the inner diameter to the outer diameter.
  • the grinding area of each axial point is different. As shown in FIG. 6 , the grinding area S1 of the point A is greater than the grinding area S2 of the point B. Since the larger grinding area requires more water for cooling, the openings of the water passing grooves may be correspondingly designed in different sizes according to different water consumptions. In FIG. 6 , as more water is required at the point A than the point B, the opening width W1 of the water passing groove is correspondingly designed to be greater than W2.
  • the total length of accumulated circumferences (n ⁇ W) of water supply channels at respective axial points of the grinding surface is set in positive correlation with the grinding area (S) of the points.
  • the total length of accumulated circumferences of the corresponding water passing grooves 2 at respective axial points of the grinding surface 101 is n ⁇ Wi, wherein i refers to the grinding point on the grinding surface 101, n refers to the number of water passing grooves 2, and Wi refers to an opening width of the corresponding water passing groove 2 at the grinding point i.
  • the opening width of the corresponding water passing groove 2 increases at a position with the large machining allowance, thereby satisfying cooling requirements.
  • the special-shaped wheel further includes a base spiral water passing groove 3.
  • the base spiral water passing groove 3 is spirally formed around a middle portion of an inner wall of the base 1, and recessed toward an inner side of the base 1.
  • the special-shaped wheel further includes a cushion block 4 for connecting an external device.
  • the cushion block 4 is of an annular block-shaped structure with a connection hole in the center, and the connection hole of the cushion block 4 is coaxial with a connection hole of the base 1 and the cushion block is fixedly disposed inside the base 1.
  • the special-shaped wheel further includes a cushion block spiral water passing groove 5.
  • the cushion block spiral water passing groove 5 is spirally formed around a middle portion of an outer wall of the cushion block 4, and recessed toward an inner side of the cushion block 4.
  • the special-shaped wheel further includes a water suction component.
  • the water suction component 6 is disposed between the cushion block 4 and the base 1, and located at the water inlet of the base 1.
  • the water suction component 6 includes an inner ring 601, an outer ring 602 and a plurality of water suction blades 603.
  • the outer ring 602 sleeves the inner ring 601, and the water suction blades 603 are transversely connected between the inner ring 601 and the outer ring 602 and circumferentially distributed at intervals.
  • the water suction blades 603 can suck the cooling water into the abrasive wheel to increase the water supply amount and support the abrasive wheel.
  • a cushion block annular groove 7 is formed in a position, which corresponds to the water suction component 6, of the cushion block 4; a base annular groove 8 is disposed at a position, which corresponds to the water suction component 6, of the base 1; and the inner ring 601 and the outer ring 602 are embedded in the cushion block annular groove 7 and the base annular groove 8 respectively and fixedly connected into one piece.
  • each axial point is different.
  • arc-shaped water passing grooves are formed around an arc wheel. Since machining allowances at positions close to end surfaces of both ends of the arc wheel are greater than the machining allowance in a middle portion thereof, openings close to the end surfaces of both ends of the arc wheel are wider than the middle portion thereof.
  • An arrow in FIG. 13 refers to a flowing path of cooling water.
  • arc-shaped water passing grooves are formed around a small-diameter abrasive wheel. Since the machining allowance at a position close to a lower end surface of the small-diameter abrasive wheel is greater than machining allowances in a middle portion and at an upper end thereof, an opening of a water passing groove close to the lower end surface of the small-diameter abrasive wheel is wider than the middle portion and the upper end thereof, and the opening of the water passing groove of the small-diameter abrasive wheel gradually widens from the upper end to the lower end.
  • An arrow in FIG. 17 refers to a flowing path of cooling water.
  • feed water enters from the water inlet in the end surface of the special-shaped wheel, and the water passing grooves are densely arranged in the circumferential direction to cool the working surface.
  • the water passing grooves 2 are axially formed in the full grinding surface of the special-shaped wheel to be less affected by the airflow barrier, and densely arranged to facilitate forming the internal cooling mode.
  • the entire grinding surface of the special-shaped wheel can be covered by the cooling water under the forward action of the centrifugal force.
  • the opening of the water passing groove 2 of each axial point is in positive correlation with the machining allowance (i.e., the grinding area of the point), that is, the larger the machining allowance, the larger the opening of the water passing groove 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (7)

  1. Ein speziell geformtes Rad mit einer Wasserdurchlassstruktur, die positiv mit einer vollständigen Schleiffläche korreliert, umfassend: eine Basis (1), wobei eine Schleifschicht an einer Außenwand der Basis (1) angebracht ist, eine äußere Umfangsfläche der Schleifschicht eine Schleiffläche (101) ist, ein Wassereinlass in einer oberen Fläche der Basis (1) ausgebildet ist und ein Anschlussloch zum Anschluss eines externen Geräts in einer unteren Fläche der Basis (1) ausgebildet ist; und das speziell geformte Rad umfasst ferner eine Vielzahl von Wasserdurchlassrillen (2), wobei die Vielzahl von Wasserdurchlassrillen (2) dicht um die Basis (1) ausgebildet ist, indem eine Mittelachse der Basis (1) als Achse genommen wird, eine Innenseite der Basis (1) mit der Schleiffläche (101) verbindet und die gesamte Schleiffläche (101) axial bedeckt; und die Gesamtlänge der kumulierten Umfänge der entsprechenden Wasserdurchlassrillen (2) an jeweiligen axialen Schleifpunkten der Schleiffläche (101) in positiver Korrelation mit dem Schleifbereich des Schleifpunkts eingestellt ist.
  2. Das speziell geformte Rad gemäß Anspruch 1, wobei die Gesamtlänge der kumulierten Umfänge der entsprechenden Wasserdurchgangsrillen (2) an jeweiligen axialen Punkten der Schleiffläche (101) n × Wi beträgt, wobei i sich auf den Schleifpunkt auf der Schleiffläche (101) bezieht, n sich auf die Anzahl der Wasserdurchgangsrillen (2) bezieht und Wi sich auf eine Öffnungsbreite der entsprechenden Wasserdurchgangsrille (2) am Schleifpunkt i bezieht.
  3. Das speziell geformte Rad gemäß Anspruch 1, das weiterhin umfasst: eine spiralförmige Wasserdurchlassnut (3) an der Basis, wobei die spiralförmige Wasserdurchlassnut (3) an der Basis spiralförmig um einen mittleren Abschnitt einer Innenwand der Basis (1) herum geformt ist und in Richtung einer Innenseite der Basis (1) vertieft ist.
  4. Das speziell geformte Rad gemäß einem der Ansprüche 1 bis 3, das außerdem umfasst: einen Polsterblock (4) zum Anschließen eines externen Geräts, wobei der Polsterblock (4) eine ringförmige blockförmige Struktur mit einem Anschlussloch in der Mitte aufweist, das Anschlussloch des Polsterblocks (4) koaxial zu einem Anschlussloch der Basis (1) ist und der Polsterblock (4) fest innerhalb der Basis (1) angeordnet ist.
  5. Das speziell geformte Rad nach Anspruch 4, das außerdem umfasst: eine spiralförmige Wasserdurchlassnut (5) des Polsterblocks, wobei die spiralförmige Wasserdurchlassnut (5) des Polsterblocks spiralförmig um einen mittleren Abschnitt einer Außenwand des Polsterblock (4) herum geformt ist und in Richtung einer Innenseite des Polsterblocks (4) vertieft ist.
  6. Das speziell geformte Rad gemäß Anspruch 4, das außerdem Folgendes umfasst: eine Wassersaugkomponente, wobei die Wassersaugkomponente (6) zwischen dem Polsterblock (4) und der Basis (1) angeordnet ist und sich am Wassereinlass der Basis (1) befindet; die Wassersaugkomponente (6) umfasst einen Innenring (601), einen Außenring (602) und eine Vielzahl von Wassersaugblättern (603); der Außenring (602) umschließt den Innenring (601), und die Wassersaugblätter (603) sind quer zwischen dem Innenring (601) und dem Außenring (602) verbunden und in Abständen umfangsmäßig verteilt.
  7. Das speziell geformte Rad gemäß Anspruch 6, wobei eine ringförmige Polsterblocknut (7) an einer Position ausgebildet ist, die der Wasseransaugkomponente (6) des Polsterblocks (4) entspricht; eine ringförmige Basisnut (8) an einer Position ausgebildet ist, die der Wasseransaugkomponente (6) der Basis (1) entspricht; und der Innenring (601) und der Außenring (602) jeweils in der ringförmigen Polsterblocknut (7) und der ringförmigen Basisnut (8) eingebettet und fest zu einem Stück verbunden sind.
EP21804106.9A 2020-05-15 2021-05-13 Speziell geformte räder mit positiver korrelationswasserdurchgangsstruktur für vollschleifenfläche Active EP4151364B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202020813772.8U CN212218224U (zh) 2020-05-15 2020-05-15 一种全磨削面正相关通水结构的异形轮
CN202010414824.9A CN111590476B (zh) 2020-05-15 2020-05-15 一种全磨削面正相关通水结构的异形轮
PCT/CN2021/093493 WO2021228170A1 (zh) 2020-05-15 2021-05-13 一种全磨削面正相关通水结构的异形轮

Publications (3)

Publication Number Publication Date
EP4151364A1 EP4151364A1 (de) 2023-03-22
EP4151364A4 EP4151364A4 (de) 2024-05-15
EP4151364B1 true EP4151364B1 (de) 2024-11-13

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EP21804106.9A Active EP4151364B1 (de) 2020-05-15 2021-05-13 Speziell geformte räder mit positiver korrelationswasserdurchgangsstruktur für vollschleifenfläche

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WO (1) WO2021228170A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118269242A (zh) * 2022-12-30 2024-07-02 桂林磨院材料科技有限公司 半导体划片软刀
CN120828370A (zh) * 2024-04-17 2025-10-24 桂林磨院材料科技有限公司 一种具有功能板的杯形抛光轮
CN120828368A (zh) * 2024-04-17 2025-10-24 桂林磨院材料科技有限公司 一种电镀单层金刚石抗变形磨削件、磨削环及异形砂轮

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683566A (en) * 1970-10-05 1972-08-15 Klemens C Walters Segmented grinding wheel assembly
JP2005081523A (ja) * 2003-09-11 2005-03-31 Hitachi Zosen Corp 研磨装置、研磨具および砥石ベース
CN206732729U (zh) * 2017-03-17 2017-12-12 桂林创源金刚石有限公司 一种金刚石异形砂轮及立式加工冷却系统
ES2983497T3 (es) * 2018-03-12 2024-10-23 Guilin Champion Union Diamond Co Ltd Herramienta abrasiva y procedimiento de fabricación de la misma
CN110948404B (zh) * 2019-12-27 2025-03-11 桂林创源金刚石有限公司 一种拼合式倒角装置
CN111590476B (zh) * 2020-05-15 2025-09-12 桂林创源金刚石有限公司 一种全磨削面正相关通水结构的异形轮
CN212218224U (zh) * 2020-05-15 2020-12-25 桂林创源金刚石有限公司 一种全磨削面正相关通水结构的异形轮

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EP4151364A1 (de) 2023-03-22
WO2021228170A1 (zh) 2021-11-18
EP4151364A4 (de) 2024-05-15

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