EP3538320A1 - Schleifelement sowie schleifgerät - Google Patents
Schleifelement sowie schleifgerätInfo
- Publication number
- EP3538320A1 EP3538320A1 EP17800794.4A EP17800794A EP3538320A1 EP 3538320 A1 EP3538320 A1 EP 3538320A1 EP 17800794 A EP17800794 A EP 17800794A EP 3538320 A1 EP3538320 A1 EP 3538320A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- offset
- abrasive
- belt
- grinding element
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/009—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding profiled workpieces using a profiled grinding tool
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/26—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding workpieces with arcuate surfaces, e.g. parts of car bodies, bumpers or magnetic recording heads
-
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
-
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
- B24D15/023—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material
-
- 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
- B24D7/06—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 inserted abrasive blocks, e.g. segmental
- B24D7/066—Grinding blocks; their mountings or supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
Definitions
- the present invention relates to a sanding element, a sanding device and a use of a grinder or a sanding element.
- a grinding element comprises a grinding surface and a stop surface, wherein the stop surface is positioned offset from the grinding surface by an offset, whereby a grinding depth is adjustable.
- the offset is in a range of about 1-5 mm.
- the grinder is used to z. B. sections of (sheet) body parts trigger or separate, for this purpose, if necessary, existing fasteners such as welds, rivets, folds, etc. must be removed as accurately as possible. As indicated at the beginning, this requires a very precise work. Currently, more multi-layered sheets are used. When abrading a spot weld on a top sheet metal layer, it must be ensured that underlying metal layers are not damaged. Conveniently, in the present case, an exact grinding depth, depending on the respective requirement, can be set via the offset. Ribbon or finger grinders also offer the advantage that they can also be used with high-strength steels and hard-to-reach areas. Moreover, unlike drills, they do not require straightforward accessibility, allowing extremely flexible deployment.
- the abrasive element on the stop surface on or forms this integrally wherein the abrasive element may be a (flexible) abrasive belt, as z. B. is used in band or finger grinders. Alternatively, however, the grinding element may also be a (rigid) grinding wheel.
- the abrasive element is designed as a sanding belt, wherein the abrasive belt is stepped / stepped / formed / formed so that it includes both the grinding surface and the stop surface or forms.
- the grinding surface is provided centrally, as seen along the circumferential direction, the stop surface being defined by two corresponding Chest offset, left and right arranged with respect to the grinding surface, side portions of the grinding element is formed.
- These side sections advantageously have a rather smooth surface, since they also rotate in the circumferential direction with, but should not take over a Schleiffunktion. This is realized solely by the actual grinding surface.
- such an abrasive element or belt is integrally formed, in other words as a "part” or not separable, whereby it is interchangeable with advantage as a whole.
- a desired grinding depth can be easily by choosing the appropriate abrasive belt to adjust.
- Such a grinding element for example abrasive belt, comprises more than one grinding surface, e.g. B. two, which are offset from one another. Viewed along the circumferential direction, according to one embodiment, a central, uppermost grinding surface flanked by two laterally offset lateral grinding surfaces is provided, to which, in turn offset, the abutment surface or abutment surfaces are arranged or formed.
- the grinding element or the abrasive belt is formed in two layers, wherein a first layer, which forms the grinding surface, and a second layer, in particular detachably secured to each other.
- the first layer is thus exchangeable.
- corresponding positive locking elements are provided for this purpose between the first and the second layer, which allow an exchange of the first layer, for example, in wear or when a different grinding depth is to be realized by the use of another first layer. This can namely be advantageously adapted over a different thickness of the first layer, which can be easily replaced if necessary.
- Typical interlocking elements are based, for example, on se on a hook-and-loop fastener principle, including appropriate hooks and eyes etc. Also other attachment methods, for example based on adhesives, such as double-sided adhesive tapes, etc., are possible.
- the abutment surface is designed, for example by the application of a coating or a sliding element, to enable or assist easy shifting on the surface to be worked, in particular if the area to be ground is not punctiform, as in the case of a rivet, but linear, such as at a
- the grinding element may be a grinding belt or else a grinding wheel.
- the invention is also directed to a grinding apparatus comprising a grinding element according to the invention.
- the sander is a belt sander or a finger sander, the abrasive element being an abrasive belt that rotates along a circumferential direction.
- the grinding area is the area or section on which the grinding element ultimately interacts with a workpiece or component to be machined. In a finger grinder, this would be, for example, the front area of the tool in which the sanding belt is deflected.
- the or the at least one stop surface is provided, which in relation to the grinding surface, so to speak to the rear, spaced, that over this distance a predetermined grinding depth is adjustable. The grinding surface can only penetrate into the component until the
- Grinder or the grinding area rests against the stop surface.
- the grinding area describes a substantially rectangular area or plane.
- the sanding area is the finger grinder at least partially cylindrical or has the shape of a half-cylinder.
- the basic structure of a band or finger grinder is known to the person skilled in the art and will not be further described here.
- the grinding element is an abrasive belt, which is guided on a bearing surface, wherein the bearing surface forms the stop surface.
- the offset or the grinding depth is set solely via a thickness or thickness of the grinding belt.
- the support surface is expediently wider by a certain amount than the abrasive belt or the grinding surface and thus fulfills the function of the stop surface. In a basic configuration, this structure is similar to a stepped abrasive belt, but the stop surface formed by the support surface does not rotate in this variant.
- the stop surface is designed to prevent slippage of the grinder on the component to be machined.
- the stop surface z. B. provided with a kind of coating or has a certain roughness, which can facilitate the attachment of the grinder on the component / workpiece.
- the abutment surface is designed, for example by the application of a coating or a sliding element, to enable or assist easy shifting on the surface to be worked, in particular if the area to be ground is not punctiform, as in the case of a rivet, but linear, such as at a
- the stop surface may have a substantially cylindrical shape or the shape of a half-cylinder to the mobility of the grinder, in particular z. B. pivoting, to allow.
- the invention is also directed to a use of a grinding device according to the invention or a grinding element according to the invention for body repair, in particular in the field of sheet metal processing, for example for the removal of welding spots or rivets.
- Fig. 1 two schematic diagrams for illustrating the functional principle
- FIG. 2 shows a partial view of a grinding device in a perspective view
- FIG. 1 shows, viewed substantially transversely to a circumferential direction U, a grinding element 20 designed as a sanding belt, which has a first layer 24 and a second layer 25.
- a grinding surface 22 is formed on the first layer 24, a grinding surface 22 is formed.
- the second layer 25 forms a stop surface 30 by two corresponding side sections 23.
- the stop surface 30 is offset by an offset x to the grinding surface 22.
- two sheet metal layers are outlined. The right-hand half of the figure now shows how the grinding element 20 penetrates the first sheet 81 during machining, the sheet 82 remaining completely intact as a result of a precisely set grinding depth t, which corresponds to the offset x.
- the grinding machine comprises a grinding element 20 designed as a grinding belt, which in the embodiment shown here has a double-layered construction and has a first layer 24 and a second layer 25, wherein the first layer 24 forms or comprises an abrasive surface 22.
- the second layer 25 forms over two side sections 23 a stop surface 30, which is offset by an offset x relative to the grinding surface 22, in particular to the rear.
- the grinding belt 20 rotates along a circumferential direction U and is deflected about an axis of rotation D, which corresponds more or less to a cylinder axis of the roughly cylindrical grinding region 2.
- an abrasive belt 20 has now been described, which is designed in two layers or at least stepped so that it integrally forms the corresponding offset x, via which a grinding depth can be set.
- Reference numeral 4 indicates that the component identified by this reference symbol could also be a support surface for the sanding belt 20, which stands still.
- a grinding depth can also be adjusted via a thickness or thickness of the grinding belt 20 alone.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016222043.8A DE102016222043A1 (de) | 2016-11-10 | 2016-11-10 | Schleifgerät |
| PCT/EP2017/078679 WO2018087194A1 (de) | 2016-11-10 | 2017-11-09 | Schleifelement sowie schleifgerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3538320A1 true EP3538320A1 (de) | 2019-09-18 |
| EP3538320B1 EP3538320B1 (de) | 2022-12-28 |
Family
ID=60388031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17800794.4A Active EP3538320B1 (de) | 2016-11-10 | 2017-11-09 | Schleifelement sowie schleifgerät |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20190262965A1 (de) |
| EP (1) | EP3538320B1 (de) |
| DE (1) | DE102016222043A1 (de) |
| WO (1) | WO2018087194A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM546283U (zh) * | 2017-04-10 | 2017-08-01 | Storm Pneumatic Tool Co Ltd | 可擴充的手持氣動帶狀研磨機 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2469735A (en) * | 1948-07-10 | 1949-05-10 | Standard Steel Spring Co | Polishing machine |
| DE1721125U (de) * | 1955-12-10 | 1956-04-26 | Norddeutsche Schleifmittel Ind | Schleif- und polierbaender. |
| DE1502616A1 (de) * | 1963-07-20 | 1969-06-04 | Grundig Max | Schleifmitteltraeger zum Nachschleifen von Magnetkopfpolen,die mit einem gerillten Magnettonaufzeichnungstraeger zusammenarbeiten |
| GB1167634A (en) * | 1967-05-17 | 1969-10-15 | B & I Nathan Ltd | Abrasive Bands, and Abrading apparatus provided with such Bands |
| US3516207A (en) * | 1967-08-03 | 1970-06-23 | Bader Stephen & Co Inc | Belt grinding and polishing machine |
| US3619949A (en) * | 1970-06-12 | 1971-11-16 | Dynabrade | Miniature belt grinder |
| JPS5020310B1 (de) * | 1970-12-14 | 1975-07-14 | ||
| JPS5038835B2 (de) * | 1972-05-27 | 1975-12-12 | ||
| US4392333A (en) * | 1981-08-17 | 1983-07-12 | Dynabrade, Inc. | Guide wheels for belt grinder |
| US4694616A (en) * | 1986-06-25 | 1987-09-22 | Lindberg Robert C | Removable belt-backing mechanism for a belt sander |
| US4858390A (en) * | 1987-06-04 | 1989-08-22 | Nisan Kenig | Belt grinder attachment for powered rotary tools |
| DE8908547U1 (de) * | 1989-07-13 | 1990-11-08 | Reiling, Karl, 7535 Königsbach-Stein | Vorsatzgerät für Handbohrmaschinen und Winkelschleifer in Form eines Schleiffingers |
| JPH08108359A (ja) * | 1994-10-07 | 1996-04-30 | Fuji Photo Film Co Ltd | 研磨装置 |
| US6833014B2 (en) * | 2002-07-26 | 2004-12-21 | 3M Innovative Properties Company | Abrasive product, method of making and using the same, and apparatus for making the same |
| US7207875B2 (en) * | 2003-10-14 | 2007-04-24 | Black & Decker Inc. | Sanding frame and stand for a belt sander |
| US8002612B2 (en) * | 2004-04-08 | 2011-08-23 | 3M Innovative Properties Company | Attachment system for a sanding tool |
| NL1026020C2 (nl) * | 2004-04-23 | 2005-10-25 | Bosch Gmbh Robert | Bandschuurmachine met schuurdiepte-referentieorgaan. |
| JP5211835B2 (ja) * | 2008-04-30 | 2013-06-12 | ソニー株式会社 | ウエハ研磨装置およびウエハ研磨方法 |
| US8662962B2 (en) * | 2008-06-30 | 2014-03-04 | 3M Innovative Properties Company | Sandpaper with non-slip coating layer and method of using |
-
2016
- 2016-11-10 DE DE102016222043.8A patent/DE102016222043A1/de not_active Withdrawn
-
2017
- 2017-11-09 WO PCT/EP2017/078679 patent/WO2018087194A1/de not_active Ceased
- 2017-11-09 EP EP17800794.4A patent/EP3538320B1/de active Active
-
2019
- 2019-05-09 US US16/407,359 patent/US20190262965A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018087194A1 (de) | 2018-05-17 |
| EP3538320B1 (de) | 2022-12-28 |
| US20190262965A1 (en) | 2019-08-29 |
| DE102016222043A1 (de) | 2018-02-22 |
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