EP1846194A1 - Grinding disc shielding - Google Patents
Grinding disc shieldingInfo
- Publication number
- EP1846194A1 EP1846194A1 EP06706597A EP06706597A EP1846194A1 EP 1846194 A1 EP1846194 A1 EP 1846194A1 EP 06706597 A EP06706597 A EP 06706597A EP 06706597 A EP06706597 A EP 06706597A EP 1846194 A1 EP1846194 A1 EP 1846194A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding wheel
- grinding
- cooling liquid
- shield according
- wheel shield
- 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
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
- B24B55/04—Protective covers for the grinding wheel
- B24B55/045—Protective covers for the grinding wheel with cooling means incorporated
Definitions
- the invention relates to a grinding wheel shield for internally cooled grinding wheels, wherein the cooling liquid is discharged through recesses in the rotating grinding surface to the outside.
- the cooling fluid In internally cooled grinding wheels, the cooling fluid is supplied to internal cavities of the grinding wheel, from where the cooling fluid at high pressure through channels recesses in the rotating grinding surface is supplied and discharged to the outside. Thus, the cooling liquid exits the grinding surface in all directions.
- the coolant volumes can be very large. For example, such a grinding wheel with 3000 revolutions per minute and a coolant pressure of 40 to 60 bar requires about 200 liters of liquid per minute.
- the cooling effect of the cooling liquid is predominantly necessary at the grinding point at which the grinding wheel comes into contact with the workpiece to be machined. Thus, a considerable amount of coolant and associated pumping device is lost. The aim is to increase the cooling capacity with less effort.
- a grinding wheel guard wherein a sector of the grinding wheel is covered by a steel sheet cover to prevent injury when parts of the grinding wheel or workpiece are thrown.
- These mudguards capture a portion of the radiated coolant, but without thereby improving the cooling performance.
- the subject invention is characterized in that the shield has a grinding wheel surrounding the grinding wheel over a sector collecting channel for the cooling liquid, the collecting channel on the output side at least one Abstrahldü- has se, with which the beam is steerable on the workpiece to be ground or the grinding point.
- Fig. 1 shows the side view of a grinding wheel assembly with inventive grinding wheel shield.
- Fig. 2 is a section through this arrangement.
- Fig. 3 shows an oblique view of the output side end of the grinding wheel shield.
- Figures 4 to 6 show details in various embodiments and Figure 7 is an oblique view of a further embodiment of the invention.
- FIG. 1 shows the arrangement of a grinding wheel 1 with the grinding surface 2 and the outlet openings 3 for the cooling liquid 4.
- the cooling liquid passes under high pressure via line 5 into the interior of the grinding wheel 1 and from there in an already proposed manner via a chamber system and Channels to the outlet openings 3.
- the grinding wheel 6 extends to the input 7 and output 8.
- the grinding wheel 1 rotates in the direction of rotation 9 about the axis 10th
- the grinding wheel 1 is shown only schematically in this respect as the chambers and channels for the distribution and supply of the cooling liquid are not shown. It is important here only that the supplied into the interior of the grinding wheel coolant is supplied through these chambers and channels to the outlet openings 3, from where the liquid is radiated approximately radially.
- the grinding wheel 1 runs in a collecting channel 17 whose clearance around the grinding wheel 1 is relatively small.
- the gutter 17 extends over a portion of the circumference of the grinding wheel parallel to the grinding surface 2 and has an extension 18 in the direction of the outlet 8. The extension 18 extends continuously from the gutter 6.
- the rotary body 12 is provided with a catching chamber 19, from which a jet nozzle extends in the direction of the exit of the grinding wheel shield.
- a jet nozzle extends in the direction of the exit of the grinding wheel shield.
- the grinding fluid supplied to the grinding fluid is collected in the covered by the grinding wheel 6 shielding sector of the grinding wheel after exiting through the outlet openings 3 in the collecting channel 17 under high pressure and conveyed in the direction of the output 8.
- the cooling liquid passes into the extension 18 and into the catching chamber 19. From there, the cooling liquid is pressed in a partial flow in accordance with the partial flow 14 in FIG. 1 through the spray nozzle 20.
- Another partial stream can be entrained along the grinding surface 2 by the grinding wheel and emitted through the outlet slot 21.
- the jet direction of the jet nozzle 20 can be aligned so that the partial beam 14 hits exactly the desired location of the workpiece 13.
- Fig. 3 shows the output of the grinding wheel shield, wherein the grinding wheel has been omitted.
- the circumferential surface 22 has two parallel grooves 23 which serve to receive the cooling liquid in the collecting channel 17.
- the radiating nozzle 20 is formed as a continuous slot.
- Fig. 4 shows the rotary body 12 in that embodiment in which it is used in Fig. 3.
- the viewing direction goes into the catching chamber 19, from which the ejection nozzle 20 extends.
- FIG. 5 shows a side view of another embodiment of the rotary body, wherein the jet nozzle 20 comprises three nozzle channels 25.
- the rotary body has a branch line 27, which discharges the liquid flow or at least a partial flow out of the catching chamber 19 and feeds it to a conduit or an external emission nozzle, not shown here.
- a branch line 27 which discharges the liquid flow or at least a partial flow out of the catching chamber 19 and feeds it to a conduit or an external emission nozzle, not shown here.
- Fig. 7 shows such an arrangement on a grinding wheel, wherein the cooling liquid is passed out of the rotary body 12 on both sides into two external radiating nozzles 26, so that they can supply the cooling liquid from another angular position.
- the cross-sectional shape of the gutter can for example be adapted to the cross-section of the grinding wheel, especially when profiles are ground.
- the device according to the invention not only offers the advantage of better supply of coolant to the grinding point, but it also makes a separate flushing of the grinding surface of the grinding wheel unnecessary.
- the grinding wheel shield is shown in the figures as a cast body. It can be made of plastic as well as metal. The production of sheet steel is also possible.
- the term "cooling fluid” used here encompasses all fluids, for example also lubricants, which are supplied to the grinding surface and / or the workpiece in grinding wheel arrangements.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0021005A AT502444B1 (en) | 2005-02-09 | 2005-02-09 | WHEEL SHIELD |
PCT/EP2006/000928 WO2006084630A1 (en) | 2005-02-09 | 2006-02-03 | Grinding disc shielding |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1846194A1 true EP1846194A1 (en) | 2007-10-24 |
EP1846194B1 EP1846194B1 (en) | 2011-10-12 |
Family
ID=36481303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06706597A Not-in-force EP1846194B1 (en) | 2005-02-09 | 2006-02-03 | Grinding disc shielding |
Country Status (4)
Country | Link |
---|---|
US (1) | US7959498B2 (en) |
EP (1) | EP1846194B1 (en) |
AT (2) | AT502444B1 (en) |
WO (1) | WO2006084630A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109366361A (en) * | 2018-11-30 | 2019-02-22 | 江苏盛航精密制造有限公司 | A kind of auto parts and components polishing protective device |
CN109571264A (en) * | 2018-12-28 | 2019-04-05 | 宁波宝信高分子科技有限公司 | Safe environment protection type grinding device based on macromolecule chemical material production |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012010977A1 (en) * | 2012-05-31 | 2013-12-05 | Andreas Stihl Ag & Co. Kg | "Hand-held implement with a cutting chain for cutting mineral or metallic materials" |
GB201418175D0 (en) | 2014-10-14 | 2014-11-26 | Pilkington Group Ltd | An apparatus and a process for grinding an edge and a glazing having a ground edge |
KR101943258B1 (en) * | 2017-09-08 | 2019-01-30 | 시오 컴퍼니 리미티드 | Nozzle, nozzle fixing structure, and nozzle assembly |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612015A (en) * | 1950-06-12 | 1952-09-30 | Thompson Grinder Co | Mounting structure for grinding wheels |
US2708332A (en) * | 1951-02-10 | 1955-05-17 | Vinco Corp | Coolant to grinding wheels |
GB826194A (en) * | 1956-05-28 | 1959-12-31 | Bull Sa Machines | Improvements relating to cooling systems for machine tools |
US3064400A (en) * | 1959-11-02 | 1962-11-20 | Logan W Johnson | Model trimmer |
US3543451A (en) * | 1967-10-26 | 1970-12-01 | Day Ton Progress Corp | Accessory for machine tools |
SU872234A1 (en) * | 1980-01-09 | 1981-10-15 | Ульяновский политехнический институт | Apparatus for feeding cutting fluids |
DE3426744C1 (en) * | 1984-07-20 | 1985-08-22 | Flachglas AG, 8510 Fürth | Machine for edge grinding model glass panes |
US4570609A (en) * | 1984-10-05 | 1986-02-18 | Hogue John J | Water-cooled hub for flush-cut concrete saws |
DE3804781A1 (en) * | 1987-02-28 | 1989-06-01 | Zahnradfabrik Friedrichshafen | Abrasive wheel |
US5423717A (en) * | 1993-10-04 | 1995-06-13 | Ford Motor Company | Grinding wheel assembly |
DE19625286A1 (en) * | 1996-06-25 | 1998-01-02 | Kapp Werkzeugmasch | Method and device for supplying the interaction zone between an abrasive tool and a workpiece with cooling lubricant |
DE29717058U1 (en) * | 1997-09-24 | 1997-10-30 | August Heinr Schmidt Gmbh & Co | Protective hood for circular saw blade grinding machines |
US6186136B1 (en) * | 1999-12-13 | 2001-02-13 | Blount, Inc. | Stretch reduction system for concrete cutting chain saw |
US7044840B2 (en) | 2002-08-07 | 2006-05-16 | Toyoda Koki Kabushiki Kaisha | Grinding method and grinding machine |
-
2005
- 2005-02-09 AT AT0021005A patent/AT502444B1/en not_active IP Right Cessation
-
2006
- 2006-02-03 EP EP06706597A patent/EP1846194B1/en not_active Not-in-force
- 2006-02-03 AT AT06706597T patent/ATE528109T1/en active
- 2006-02-03 WO PCT/EP2006/000928 patent/WO2006084630A1/en active Application Filing
- 2006-02-03 US US11/884,194 patent/US7959498B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006084630A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109366361A (en) * | 2018-11-30 | 2019-02-22 | 江苏盛航精密制造有限公司 | A kind of auto parts and components polishing protective device |
CN109571264A (en) * | 2018-12-28 | 2019-04-05 | 宁波宝信高分子科技有限公司 | Safe environment protection type grinding device based on macromolecule chemical material production |
Also Published As
Publication number | Publication date |
---|---|
WO2006084630A1 (en) | 2006-08-17 |
US7959498B2 (en) | 2011-06-14 |
EP1846194B1 (en) | 2011-10-12 |
ATE528109T1 (en) | 2011-10-15 |
AT502444A1 (en) | 2007-03-15 |
AT502444B1 (en) | 2008-09-15 |
US20080318502A1 (en) | 2008-12-25 |
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