EP3455031A1 - Grinding wheel with a vibration-damping support body - Google Patents
Grinding wheel with a vibration-damping support bodyInfo
- Publication number
- EP3455031A1 EP3455031A1 EP17719985.8A EP17719985A EP3455031A1 EP 3455031 A1 EP3455031 A1 EP 3455031A1 EP 17719985 A EP17719985 A EP 17719985A EP 3455031 A1 EP3455031 A1 EP 3455031A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding wheel
- vibration
- coupling region
- abrasive coating
- carrier body
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
Classifications
-
- 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
- B24D5/16—Bushings; Mountings
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
-
- 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
- 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
- B24D5/02—Wheels in one piece
-
- 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
- B24D5/12—Cut-off wheels
Definitions
- the invention relates to a grinding wheel with a carrier body, which has a central coupling region for connecting the grinding wheel to a rotary drive for rotating the grinding wheel about a coupling axis extending through the axis of rotation and a peripheral surface, and with an abrasive coating, which is applied to the peripheral surface of the carrier body, in particular Sintered is.
- the grinding wheel 101 comprises a carrier body 102 made of steel with a central coupling region 104 for connecting the grinding wheel 101 to a rotary drive for rotating the grinding wheel 101, passing through the coupling region 104 Rotation axis 105.
- the carrier body 102 further has a peripheral surface 106, on which an abrasive coating 107 is applied.
- the grinding insert generates vibrations which radiate over all areas of the grinding wheel and the workpiece to be machined. If one or more natural frequencies are excited, the vibrations are even amplified. The vibrations can also adversely affect the accuracy and thus the quality of the grinding result.
- the objective technical object of the present invention is therefore to provide a grinding wheel according to the preamble of claim 1, in which these disadvantages are avoided.
- the carrier body comprises a first part and a second part connected thereto, wherein the first part has the peripheral surface, and the second part has the coupling region and consists essentially of a vibration-damping material.
- the vibration decoupling or damping by the second part of the carrier body thus takes place in two directions: on the one hand, the vibrations generated by the abrasive coating and, on the other hand, the vibrations caused by the rotary drive or the grinding machine are damped and decoupled from one another. In the prior art, some overlapping and additional amplification of these vibrations takes place.
- a damping of the vibrations caused by the spindle of the drive through the second part of the carrier body also has a favorable effect, for example, on the bearings of the spindle, since they are less stressed.
- the invention is therefore not only to provide a support body with a vibration-damping material, but at least two parts perform the support body, wherein one part consists essentially of a vibration-damping material and the other part can be created from a different material, which other, for the grinding insert has favorable physical properties.
- the vibration-damping material of the second part may be, for example, cast iron, preferably with lamellar graphite (eg GJL 250), spheroidal graphite, vermicular graphite, or cast steel, and / or aluminum bronze and / or fiber-reinforced, preferably carbon fiber reinforced, plastic.
- the first part of the carrier body can essentially consist of a vibration-conducting and / or heat-conducting material, preferably steel or aluminum.
- the abrasive coating is formed contactlessly to the second part, so that vibrations occurring during a grinding process can be transferred indirectly via the first part to the second part and attenuated by means of the second part.
- the first part consists essentially of a fiber-reinforced, preferably carbon fiber reinforced, plastic and the second part consists essentially of cast iron.
- both parts are made of a vibration-damping material.
- the invention does not necessarily provide that the first part consists of a vibration-conducting material.
- a, preferably axial, screw connection can be provided. It is particularly advantageous to provide in the first and / or second part recesses, in which threaded bushes used, preferably glued, are. In this way, the second part can be supplied for reuse in a particularly simple manner. Alternatively, it would also be possible to cut the threads directly into the first and / or second part.
- the second part has an approximately twice as large volume as the first part, and / or the second part has a higher weight compared to the first part. This is a very massive second part, which dampens the vibrations occurring in the grinding insert in a particularly efficient manner.
- Figure 2 shows a preferred embodiment of an inventive
- FIG. 3 shows the first part of the carrier body of the grinding wheel from FIG. 2
- FIG. 4 shows the second part of the carrier body of the grinding wheel from FIG. 2.
- the grinding wheel 1 illustrated in FIGS. 2 to 4 comprises a carrier body which is constructed from a first part 2 and a second part 3 connected thereto.
- the first part 2 consists essentially of steel and is therefore vibration and heat conducting.
- the first part 2 has a peripheral surface 6, on which an abrasive coating 7 with a width 12 of approximately 5 mm is sintered. Vibrations and heat generated in the grinding insert can be dissipated via the first part 1.
- the first part 2 is connected via two contact surfaces 10 and 1 1 with the second part 3 in connection, wherein the rotation axis 5 is aligned substantially normal to the contact surface 10 and substantially parallel to the contact surface 1 1. In this case, the contact surface 10 is a multiple greater than the contact surface 1 1.
- the vibrations are forwarded to the second part 3.
- This consists essentially of a vibration-damping material, such as cast iron with lamellar graphite or aluminum bronze or fiber-reinforced, preferably carbon fiber reinforced plastic. Due to the vibration damping properties of the second part 3, the vibrations transmitted by the first part 2 are damped.
- the grinding wheel 1 is formed asymmetrically with respect to an imaginary center plane normal to the axis of rotation 5.
- the second part 3 has a coupling region 4 for connecting the grinding wheel 1 to a rotary drive for rotating the grinding wheel 1 about an axis of rotation 5 extending through the coupling region 4.
- the coupling region 4 is formed as a central bore.
- the coupling region 4 is therefore formed directly in the vibration-damping material of the second part 3, so that the second part 3 acts as a hub.
- the second part 3 When assembling the grinding wheel 1, the second part 3 is introduced with an approximately cylindrical projection 16 in a corresponding recess 14 which is provided in the first part 2, namely until the parts 2 and 3 are flush with each other. Subsequently, the two parts 2 and 3 are firmly connected.
- it is an axial screw, so a screw parallel to the axis of rotation 5.
- recesses 9 In which threaded bushings 8 are glued. These are arranged in alignment with recesses 15, which are provided in the first part 2.
- a screw head has space. After joining the two parts 2 and 3, these can be firmly connected by screws 13 together.
- the first part 2 can be removed again and replaced by a new first part 2, wherein the second part 3 can be reused.
- the arrangement of the recesses 9 and 15 in the two parts 2 and 3 represents only an exemplary possibility of how a screw connection can be realized. A reverse arrangement is possible. Furthermore, as already stated, the thread can also be cut directly into one of the two parts 2 or 3. Finally, other types of connection can be used instead of the screw connection-alternatively or additionally-such as, for example, bonding of the two parts 2 and 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201730270T SI3455031T1 (en) | 2016-05-13 | 2017-04-19 | Grinding wheel with a vibration-damping support body |
PL17719985T PL3455031T3 (en) | 2016-05-13 | 2017-04-19 | Grinding wheel with a vibration-damping support body |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50447/2016A AT518247B1 (en) | 2016-05-13 | 2016-05-13 | grinding wheel |
PCT/AT2017/060099 WO2017193147A1 (en) | 2016-05-13 | 2017-04-19 | Grinding wheel with a vibration-damping support body |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3455031A1 true EP3455031A1 (en) | 2019-03-20 |
EP3455031B1 EP3455031B1 (en) | 2020-03-11 |
Family
ID=58640644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17719985.8A Active EP3455031B1 (en) | 2016-05-13 | 2017-04-19 | Grinding wheel with a vibration-damping support body |
Country Status (11)
Country | Link |
---|---|
US (1) | US11607777B2 (en) |
EP (1) | EP3455031B1 (en) |
JP (1) | JP7014776B2 (en) |
KR (1) | KR102180895B1 (en) |
CN (1) | CN109153108B (en) |
AT (1) | AT518247B1 (en) |
ES (1) | ES2794786T3 (en) |
IL (1) | IL262609B (en) |
PL (1) | PL3455031T3 (en) |
SI (1) | SI3455031T1 (en) |
WO (1) | WO2017193147A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111823153A (en) * | 2020-08-06 | 2020-10-27 | 平湖盛邦科技有限公司 | Carbon fiber matrix composite structure grinding wheel and manufacturing method thereof |
Family Cites Families (35)
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US3555744A (en) * | 1966-11-29 | 1971-01-19 | Norton Co | Method of grinding |
US3613472A (en) * | 1970-08-12 | 1971-10-19 | Gerhard R Held | Honing gear assembly |
CH575276A5 (en) * | 1974-05-02 | 1976-05-14 | Krebs & Riedelwing George Seab | Saw blade for grinding machines - is built up of two concentric parts of materials of different elasticity |
DE2740891C3 (en) * | 1977-09-10 | 1980-11-13 | Ernst 8909 Niederraunau Spielvogel | Peripheral grinding wheel |
JPS5620756U (en) * | 1979-07-24 | 1981-02-24 | ||
US4381182A (en) | 1979-07-27 | 1983-04-26 | Lucas Industries Limited | Fuel injection pump |
US4541205A (en) * | 1983-04-08 | 1985-09-17 | United Abrasives, Inc. | Abrasive wheel assembly |
JPS59214561A (en) | 1983-05-19 | 1984-12-04 | Toyoda Mach Works Ltd | Diamond wheel for truing grinding wheel |
BE903178A (en) * | 1985-09-04 | 1985-12-31 | Diamant Boart Sa | DIAMOND SEGMENT SAWING DISC |
JPS6268282A (en) | 1985-09-19 | 1987-03-28 | Asahi Daiyamondo Kogyo Kk | Diamond cutter |
JPH0326467A (en) * | 1989-06-20 | 1991-02-05 | Agency Of Ind Science & Technol | Porous metal wheel and manufacture thereof |
AT400013B (en) * | 1990-05-07 | 1995-09-25 | Rappold International Sales Ag | Abrasive arrangement |
JP3178096B2 (en) | 1992-07-14 | 2001-06-18 | 株式会社日立製作所 | Vacuum cleaner mouthpiece |
JP3333627B2 (en) * | 1994-04-06 | 2002-10-15 | 株式会社マキタ | Tool fixing device for rotary grinding tools |
AT409469B (en) * | 1998-11-10 | 2002-08-26 | Swarovski Tyrolit Schleif | TENSIONING DEVICE FOR GRINDING WHEELS |
DE20102684U1 (en) * | 2000-02-15 | 2001-04-19 | Tyrolit-Schleifmittelwerke Swarovski KG, Schwaz, Tirol | Grinding wheel |
JP2002059367A (en) * | 2000-08-23 | 2002-02-26 | Bando Kiko Kk | Metal bond diamond grinding wheel and its manufacturing method |
JP2002159367A (en) * | 2000-11-27 | 2002-06-04 | Nissan Motor Co Ltd | Vehicle seat |
JP2005125412A (en) * | 2003-10-21 | 2005-05-19 | Taiho Diamond Kogyo Kk | Diamond cutter |
DE10357145A1 (en) * | 2003-12-06 | 2005-06-30 | Robert Bosch Gmbh | Hand grinder, mounting flange for a grinding tool and balancing unit |
DE102004032177B4 (en) * | 2004-07-02 | 2016-07-07 | Robert Bosch Gmbh | Vibration damping device, in particular for a power hand tool, and transmission with such a vibration damping device |
DE202004018583U1 (en) * | 2004-12-01 | 2006-04-06 | Rhodius Schleifwerkzeuge Gmbh & Co. Kg | Device for cutting-off and grinding operations comprises vibration absorbing elements in the form of elastic coatings on the clamping elements or the tool, or in the form of interposable disks |
DE102004061871B4 (en) * | 2004-12-22 | 2007-05-31 | Erwin Junker Maschinenfabrik Gmbh | Clamping device with centering device on a grinding spindle rotor and rotating part with such a centering device |
US7883398B2 (en) * | 2005-08-11 | 2011-02-08 | Saint-Gobain Abrasives, Inc. | Abrasive tool |
DE102005054578A1 (en) | 2005-11-16 | 2007-05-24 | Robert Bosch Gmbh | cutting wheel |
US7588484B2 (en) * | 2006-01-19 | 2009-09-15 | Nao Enterprises, Inc. | Mounting system for grinding wheels and the like |
DE102006030559A1 (en) * | 2006-07-03 | 2008-01-10 | Robert Bosch Gmbh | Electric hand tool |
JP2010042498A (en) * | 2008-08-14 | 2010-02-25 | Kazumasa Onishi | Processing method by use of grinding wheel provided with ultrasonic vibration |
US20110017043A1 (en) * | 2009-07-21 | 2011-01-27 | Angelo Don L | Saw blade and saw blade assembly |
DE102010027205A1 (en) * | 2010-07-06 | 2012-01-12 | C. & E. Fein Gmbh | hand tool |
JP5620756B2 (en) | 2010-08-31 | 2014-11-05 | 大王製紙株式会社 | Pants-type disposable diaper |
JP2012245607A (en) | 2011-05-25 | 2012-12-13 | Sankyo Diamond Industrial Co Ltd | Low-vibration type saw blade |
JP3178096U (en) * | 2012-06-19 | 2012-08-30 | 天龍製鋸株式会社 | Grinding tool |
CN105100708B (en) | 2015-06-26 | 2018-12-25 | 小米科技有限责任公司 | Request processing method and device |
EP3419785A4 (en) * | 2016-02-26 | 2019-09-04 | 3M Innovative Properties Company | Damped abrasive article |
-
2016
- 2016-05-13 AT ATA50447/2016A patent/AT518247B1/en active
-
2017
- 2017-04-19 CN CN201780029441.6A patent/CN109153108B/en active Active
- 2017-04-19 JP JP2019512023A patent/JP7014776B2/en active Active
- 2017-04-19 EP EP17719985.8A patent/EP3455031B1/en active Active
- 2017-04-19 PL PL17719985T patent/PL3455031T3/en unknown
- 2017-04-19 WO PCT/AT2017/060099 patent/WO2017193147A1/en unknown
- 2017-04-19 ES ES17719985T patent/ES2794786T3/en active Active
- 2017-04-19 SI SI201730270T patent/SI3455031T1/en unknown
- 2017-04-19 KR KR1020187034181A patent/KR102180895B1/en active IP Right Grant
-
2018
- 2018-10-25 IL IL262609A patent/IL262609B/en unknown
- 2018-10-29 US US16/173,034 patent/US11607777B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
AT518247A4 (en) | 2017-09-15 |
JP7014776B2 (en) | 2022-02-01 |
US11607777B2 (en) | 2023-03-21 |
AT518247B1 (en) | 2017-09-15 |
CN109153108B (en) | 2021-04-27 |
WO2017193147A1 (en) | 2017-11-16 |
ES2794786T3 (en) | 2020-11-19 |
IL262609B (en) | 2022-03-01 |
CN109153108A (en) | 2019-01-04 |
JP2019514721A (en) | 2019-06-06 |
SI3455031T1 (en) | 2020-09-30 |
KR20180135067A (en) | 2018-12-19 |
EP3455031B1 (en) | 2020-03-11 |
IL262609A (en) | 2019-02-28 |
KR102180895B1 (en) | 2020-11-20 |
PL3455031T3 (en) | 2020-08-24 |
US20190061108A1 (en) | 2019-02-28 |
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