CN109689300B - Rough grinding tool - Google Patents
Rough grinding tool Download PDFInfo
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- CN109689300B CN109689300B CN201680088712.0A CN201680088712A CN109689300B CN 109689300 B CN109689300 B CN 109689300B CN 201680088712 A CN201680088712 A CN 201680088712A CN 109689300 B CN109689300 B CN 109689300B
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- 239000010431 corundum Substances 0.000 description 17
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- 239000000945 filler Substances 0.000 description 7
- 239000003082 abrasive agent Substances 0.000 description 6
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
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- 229910052845 zircon Inorganic materials 0.000 description 5
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/08—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising annular or circular sheets packed side by side
-
- 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
- B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
-
- 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
- B24D3/02—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 bonding agent
- B24D3/20—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 bonding agent and being essentially organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
-
- 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
- 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
- B24D7/16—Bushings; Mountings
-
- 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
- B24D3/007—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 bonding agent between different parts of an abrasive tool
-
- 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
- B24D5/04—Wheels in one piece with reinforcing means
-
- 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
- B24D9/085—Devices for mounting sheets on a backing plate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A rough grinding tool (1) has a support body (2) and at least one grinding ring (S)1To S4). The support body (2) comprises abrasive grains for rough grinding. The supporting body (2) is used for supporting the at least one grinding ring (S)1To S4) And used for rough grinding itself. The rough grinding tool (1) is easy to produce and robust, and has a high removal capacity and a long service life.
Description
Technical Field
The invention relates to a rough grinding tool, in particular for operating a handheld angle grinder.
Background
In a subtractive manufacturing process, roughing refers to removing material in a large chip volume. In order to achieve short machining times, the rough grinding tool is intended to allow a high removal capacity and at the same time have a long service life.
EP 3015222 a1 discloses a grinding disc having a pad and a plurality of grinding rings. The liner is stepped to form a plurality of annular portions, one grinding ring being secured to each annular portion. In this way, the grinding ring forms a multi-layer grinding ring stack. The abrasive ring stack forms a substantially frustoconical stepped recess. This makes it possible to position the abrasive disc at different set angles to the workpiece surface and allows the stack of abrasive rings to be substantially completely disposed of until the pad reaches the workpiece surface and the abrasive disc is worn out.
Disclosure of Invention
The invention is based on the following objectives: a robust rough grinding tool is provided that is easy to produce and has a high removal capacity and a long service life.
This object is achieved by a rough grinding tool according to a first embodiment of the present invention. According to the present invention, the support body is configured for rough grinding, and includes abrasive grains. The support body thus serves both for supporting the at least one grinding ring during rough grinding and for rough grinding itself, thereby achieving a high level of robustness and a long service life of the rough grinding tool. The support is in particular configured such that it complies with the safety requirement "single point side load" of the german standard DIN EN 12413 "safety requirement for bonded abrasive products" (5-month version 2011). The support body is also configured in a simple manner and is easy to produce. By selecting the abrasive particles, a high removal capacity of the material to be processed can be achieved. The rough grinding tool is configured, for example, as a grinding disk or grinding cup wheel.
The rough grinding tool has one or more grinding rings arranged on a support body. The grinding ring adjacent to the support body is fastened to the support body by means of gluing and/or riveting and/or screwing and/or nailing. If the rough grinding tool has several grinding rings, each further grinding ring is fastened to the underlying grinding ring by means of gluing and/or riveting and/or screwing and/or nailing. The bonding is performed by means of an adhesive layer, which preferably comprises a resin.
The at least one grinding ring has at least one grinding layer with oriented and/or non-oriented abrasive particles. The abrasive grains are in particular selected from diamond, Cubic Boron Nitride (CBN), silicon carbide (SiC), natural and/or synthetic corundum. The corundum is, for example, zircon corundum and/or alumina (Al)2O3)。
The rough grinding tool according to the second embodiment of the present invention ensures a long service life. The abrasive particles are bonded by means of a binder and form an abrasive layer or abrasive area. The binder is in particular a synthetic resin, for example a phenolic resin. Preferably, the abrasive layer has a thickness corresponding to the thickness of the support body in the axial direction of the rough grinding tool. This means that the support forms an abrasive layer over its entire thickness. The abrasive grains are in particular selected from diamond, Cubic Boron Nitride (CBN), silicon carbide (SiC), natural and/or synthetic corundum. The corundum is, for example, zircon corundum and/or alumina (Al)2O3). The grinding layer or grinding area is formed at least on the top side and/or the underside of the support. The abrasive grains of the support are the same and/or different than the abrasive grains of the at least one grinding ring. The abrasive layer or abrasive region of the support has the same or different abrasive particles.
The rough grinding tool according to the third embodiment of the present invention ensures a long service life. Preferably, the support body has two support body reinforcements close to the outer side of the support body, i.e. close to the top and lower side of the support body. The at least one support reinforcement is bonded to the support by means of an adhesive or a resin. The external support reinforcement is impregnated with, for example, an adhesive or a resin. The external support reinforcement is preferably in the form of a fabric, in particular a glass fabric or a glass fibre fabric.
The rough grinding tool according to the fourth embodiment of the invention ensures a long service life. Preferably, the support has an internal support reinforcement embedded in the abrasive layer or abrasive region. The internal support reinforcement is interspersed with bonded abrasive particles.
The rough grinding tool according to the fifth embodiment of the present invention ensures a high level of robustness and a long service life. Preferably, the support body outer diameter corresponds to the grinding ring outer diameter.
The rough grinding tool according to the sixth embodiment of the invention is easy to produce and robust. Roughing tools in the form of roughing grinding disks are also commonly available. At least one of the support and/or the at least one grinding ring and/or the grinding ring preferably has an offset.
The rough grinding tool according to the seventh embodiment of the invention has an extremely long service life. The at least one grinding ring, in particular a stack of grinding rings formed by several grinding rings, is arranged between two supports, each support comprising abrasive grains for coarse grinding. The supports are configured in the same or different ways. The first support body is joined at the top side to an adjacently arranged first grinding ring of the grinding ring stack, while the second support body is joined at the underside to an adjacently arranged last grinding ring of the grinding ring stack.
The rough grinding tool according to the eighth embodiment of the invention ensures a high level of robustness and a long service life. The grinding rings of the grinding ring stack are arranged one above the other in layers.
The rough grinding tool according to the ninth embodiment of the present invention ensures easy production. The grinding rings are arranged one above the other in a simple manner and adjacent grinding rings are joined together. Specifically, the bonding is performed by adhesion. Preferably, adjacent grinding rings are joined together in an inner joining region and are not joined in a working region surrounding the joining region. The support body and the grinding ring stack are thus easy to produce.
The rough grinding tool according to the tenth embodiment of the invention ensures easy production. The first grinding ring is fastened directly to the support body, while the second grinding ring is fastened only to the first grinding ring. Thus, the second abrasive ring is not directly connected to the support body, but only indirectly. Specifically, the bonding is performed by adhesion. Preferably, the grinding ring has: an inner engagement region, wherein the first abrasive ring is engaged to the support body and the second abrasive ring is engaged to the first abrasive ring; and a working area surrounding the engagement area and in which the grinding ring is not engaged.
The rough grinding tool according to the eleventh embodiment of the invention ensures high removal capability. The grinding rings of the grinding ring stack preferably do not engage in the working area, but lie closely against one another in an unstacked manner. Since at least one grinding ring is not engaged in the working area, it is easy to remove it from the grinding process after wear out. At least one of the grinding rings is made of an abrasive material on the base. Thus, the abrasive particles are arranged on the backing layer or base by means of a binder. After the abrasive grains have worn out, a targeted wear of the backing layer or the base in the working area is achieved during the grinding process, so that the underlying grinding ring or support body engages easily and quickly with the workpiece to be machined. As a result, a high removal capacity and a high level of erosion of the rough grinding tool are achieved. The working area of the at least one grinding ring is formed in a substantially annular or disc-shaped manner.
The rough grinding tool according to the twelfth embodiment of the invention ensures high removal capability. Due to the oriented abrasive particles, a high level of aggressiveness and a high removal capacity are achieved. This allows in particular the use of a rough grinding tool in a plane. The abrasive grains are preferably made of diamond, Cubic Boron Nitride (CBN), silicon carbide (SiC), natural corundum and/or synthetic corundum. The corundum is, for example, zircon corundum and/or alumina (Al)2O3)。
The rough grinding tool according to the thirteenth embodiment of the invention ensures a high level of robustness. Due to the reinforcement of the grinding ring, a high resistance to tearing of the specific grinding ring is achieved. The grinding ring reinforcement is fastened to the at least one grinding ring at least in the working area. Preferably, the grinding ring reinforcement is fastened to the at least one grinding ring over the entire surface, i.e. in the working area and the joining area. The grinding ring reinforcement is in particular fastened to the rear side of the at least one grinding ring. Preferably, the grinding ring reinforcement is fastened to the rear side of the grinding ring by means of an adhesive (e.g. phenolic resin). Specifically, an abrasive ring reinforcement is secured to each of the abrasive rings. The grinding ring reinforcement is bonded to the rear or lower side of the grinding ring, for example by means of resin. Preferably, all of the grinding rings are joined to an associated grinding ring reinforcement. It is possible to join only individual grinding rings to the grinding ring reinforcement if desired. Preferably, the grinding ring reinforcement is fastened to the rear or lower side of the at least one grinding ring and/or embedded in the grinding layer of the at least one grinding ring. An adhesive, in particular a resin, for fastening the grinding ring reinforcement, in particular also for fastening the grinding ring to the support body or to an underlying grinding ring.
The rough grinding tool according to the fourteenth embodiment of the invention ensures easy production. At least one of the grinding rings is made of an abrasive material on the base. The base forms a backing layer for abrasive particles disposed thereon. The backing layer is in particular configured as paper, vulcanized fibre, non-woven fabric and/or backing fabric, for example woven fabric and/or laid fabric. The abrasive particles are disposed on the backing layer in an oriented and/or unoriented manner. The abrasive particles are bonded to the backing layer by means of a binder. Additionally, a top layer or top bond may be disposed on the abrasive particles.
The rough grinding tool according to the fifteenth embodiment of the invention ensures ease of production and a long service life. The backing fabric is in particular a backing fabric having at least one thread in the warp and weft direction. Preferably, the backing fabric is in the form of a polyester/cotton blend fabric.
The rough grinding tool according to the sixteenth embodiment of the invention ensures a long service life. The at least one grinding ring is hardened with the filler resin such that cyclic deviations of the at least one grinding ring during machining of the workpiece are reduced. Due to the significant cycle deviation, the abrasive particles fall off the base before the abrasive particles wear and their material removal potential has been achieved. In addition, due to the dislodged abrasive particles, the layer of abrasive material is weakened because adjacent abrasive particles are no longer able to support each other. Due to the hardening, significant cycle deviations are prevented. Hardening is performed by subsequently supplying a filler resin to the grinding ring formed of an abrasive material on the base, followed by curing the filler resin. The filler resin is for example selected from the group consisting of thermosets, elastomers, synthetic resins and/or thermoplastics and combinations thereof. Preferably, the filler resin is a thermosetting material, such as a phenolic resin. After the abrasive grains have been bonded to the support or the underlying grinding ring, it is easy to provide or impregnate the grinding ring with a filling resin. Preferably, at least one grinding ring is immersed in a bath of filling resin.
The rough grinding tool according to the seventeenth embodiment of the invention ensures a high level of robustness and a long service life. Preferably, at least one of the support body reinforcements and/or the respective grinding ring reinforcements is a fabric, in particular a glass fiber fabric.
The rough grinding tool according to the eighteenth embodiment of the invention ensures a long service life. At least one of the abrasive layers of the respective abrasive ring comprises abrasive particles. Each grinding ring can have a grinding layer on the underside facing the support and/or on the top side facing away from the support. Preferably, all grinding rings have an abrasive layer on the respective top side and/or the respective underside. The abrasive layers of the respective abrasive rings are formed of the same abrasive particles or different abrasive particles. Furthermore, the abrasive layers of different abrasive rings are formed of the same abrasive particles and/or different abrasive particles.
Drawings
Other features, advantages and details of the present invention will become apparent from the following description of several exemplary embodiments.
In the drawings:
fig 1 shows a schematic cross-sectional view of a rough grinding tool according to a first exemplary embodiment,
figure 2 shows an exploded illustration of the rough grinding tool of figure 1 to show the structure,
figure 3 shows an enlarged cross-sectional view of the support body and the first grinding ring and the associated first grinding ring reinforcement of the rough grinding tool in figure 1,
FIG. 4 shows a schematic cross-sectional view of a rough grinding tool according to a second exemplary embodiment, an
Fig. 5 shows an enlarged cross-sectional view of the support body and the first grinding ring and the associated first grinding ring reinforcement of the rough grinding tool in fig. 1 or 4.
Detailed Description
A first exemplary embodiment is described below with reference to fig. 1 to 3. The rough grinding tool 1 is in the form of a rough grinding disc and has a disc-shaped or disc-shaped support body 2 and a grinding ring stack 3. The support body 2 and the stack of grinding rings 3 form a through-hole 5 for fastening a tool drive, concentrically to the common axis M. The support body 2 forms an annular offset 6. The planar working area 7 is arranged radially outside the offset 6, while the joining area 8 and the clamping area 9 are arranged radially inside the offset 6. Alternatively, the rough grinding dish may be formed in a planar manner.
The grinding ring stack 3 has a number N of grinding rings S and associated grinding ring reinforcements a, wherein for the number N: n is 1-9, specifically 2-8, and specifically 3-7. Fig. 2 illustrates an abrasive ring stack 3, for example with four abrasive rings and four associated abrasive ring reinforcements, wherein the abrasive rings are individually denoted S1To S4And the associated grinding ring reinforcement is A1To A4. Each specific grinding ring reinforcement A1To A4Fastened to the respective associated grinding ring S1To S4The rear side 10. The fastening is performed, for example, over the entire surface by means of an adhesive, for example a phenolic resin. Each specific grinding ring reinforcement A1To A4At least arranged on the corresponding grinding ring S1To S4Is fastened to the rear side 10 in the working area 7 and over its entire surface. Each specific grinding ring reinforcement A1To A4For example a fabric made of glass fibres and/or a fabric made of jute fibres.
With associated first grinding ring reinforcement A1First grinding ring S1Is fastened to the support body 2 in the joining region 8. Tighten upThe fixing is specifically carried out by adhesion. For example, in the joining region 8, close to the offset 6, a circumferential adhesive layer 4 is applied, by means of which the associated grinding ring reinforcement a is included1First grinding ring S1Is bonded. The adhesive layer 4 is particularly used for reinforcing the grinding ring by means of a1Fastened to the grinding ring S1Or a resin. Comprising an associated second grinding ring reinforcement A2Second grinding ring S2Fastened to the first grinding ring S in the joining region 81. The fastening is in particular performed by gluing. For example, in a corresponding manner, in the joining region 8, close to the offset 6, a circumferential adhesive layer 4 is applied, by means of which the bonding takes place. Grinding ring S2Grinding ring S to the lower layer1Is particularly carried out with a binder or resin which is also used for reinforcing the grinding ring a2Fastened to the grinding ring S2. In a corresponding manner, with an associated third grinding ring reinforcement A3Third grinding ring S3Fastened to the second grinding ring S2And has an associated fourth grinding ring reinforcement A4Fourth grinding ring S4Fastened to the third grinding ring S3. Thus, there is an associated grinding ring reinforcement A1First grinding ring S1Fastened to the supporting body 2 with associated grinding ring reinforcement a2To A4Of the grinding ring S2To S4Grinding ring S fastened to the corresponding lower layer1To S3. Thus, there is an associated grinding ring reinforcement A2To A4Grinding ring S2To S4Not directly fastened to the support body 2. In the working area 7, there is an associated grinding ring reinforcement A1To A4Grinding ring S1To S4Are loosened or not engaged and are brought closely against each other in an unstacked manner.
The support body 2 has a support body outer diameter DTAnd has an associated grinding ring reinforcement A1To A4Grinding ring S1To S4Having an outer diameter D of the grinding ringSWhereinPreferably: 0.1. DS≤DT≤1.2·DSSpecifically 0.5. DS≤DT≤1.1·DSAnd specifically 0.8. DS≤DT≤DS. In the exemplary embodiment according to fig. 2, for example: dT≈DS。
Grinding ring S1To S4In the form of an abrasive material on a base. Grinding ring S1To S4Comprising a backing layer 11 to which are bonded oriented abrasive particles 13 by means of a binder 12. A top layer 14 is formed over the oriented abrasive particles 13. The backing layer 11 forms a reinforcement A for fastening the respective grinding ring1To A4The rear side 10. Binder 12 with abrasive particles 13 and top layer 14 forms abrasive ring S1To S4The respective abrasive layer 17. The grinding layer 17 is arranged on the respective grinding ring S1To S4On the top side facing away from the support body 2. Alternatively or additionally, the abrasive layer 17 may be arranged on the underside facing the support body 2. Preferably, the abrasive layer 17 is arranged on the top and underside, allowing for double-sided machining.
The backing layer 11 is configured, for example, as paper, vulcanized fibre, non-woven fabric and/or backing fabric. Preferably, the backing fabric comprises polyester fibers, cotton fibers and/or glass fibers. The backing layer 11 is specifically configured as a polyester/cotton blend fabric. The binder 12 is, for example, a synthetic resin, specifically, a phenol resin. The oriented abrasive grains 13 are, for example, diamond abrasive grains. The abrasive grains 13 are in particular selected from diamond, Cubic Boron Nitride (CBN), silicon carbide (SiC), natural and/or synthetic corundum. The corundum is, for example, zircon corundum and/or alumina (Al)2O3)。
The support body 2 is configured for rough grinding. Which includes abrasive particles 16 bonded by means of a binder 15, and support reinforcements 18 and 19. The abrasive grains 16 are selected, for example, from diamond, Cubic Boron Nitride (CBN), silicon carbide (SiC), natural corundum, and/or synthetic corundum. The corundum is, for example, zircon corundum and/or alumina (Al)2O3). The external support reinforcement 18 is arranged facing the first grinding ring S1Top side 20 and opposite grinding ring S1Is adjacent to the underside 21 of the inner support body reinforcement 19, and the inner support body reinforcement 19 is embeddedIs embedded in the support body 2 and is interspersed with binder 15 and abrasive particles 16. The support body 2 has a support body thickness d in the direction of the axis MTThe support body 2 forms a rough grinding layer or abrasive layer 22 at the thickness. The support reinforcement 18, 19 is preferably in the form of a fabric. The fabric comprises in particular glass fibres and/or jute fibres.
A second exemplary embodiment of the present invention is described below with reference to fig. 4. Contrary to the first exemplary embodiment, the rough grinding tool 1 configured to rough grind a disc has a second support 23 such that the stack of grinding rings 3 is arranged between the first support 2 and the second support 23. The second support 23 is formed in the same manner as the first support 2. The second support 23 is oriented in the same way as the first support 2 and is fastened to the last grinding ring S in the joining zone 84. The fastening is in particular performed by gluing. In addition, the grinding ring S1To S4Impregnated with a filler resin 24 which, after curing, causes the grinding ring S to be ground1To S4And (6) hardening. Thus, the filling resin 24 is additionally introduced into the grinding ring S formed of the abrasive material on the base1To S4In (1). For this purpose, the rough grinding tool 1 is, for example, fastened to the grinding ring S1To S4Thereafter, the resin 24 is impregnated, preferably by immersion in a bath of the resin 24. The filler resin 24 is, for example, a synthetic resin, preferably a phenol resin. The filling resin 24 specifically impregnates the backing layer 11 and hardens the thread contained therein. With regard to the further structure, reference is made to the description of the first exemplary embodiment.
In fig. 5, a third exemplary embodiment is depicted, which can also be combined with the first two embodiments. In this case, the grinding ring S1To S4Two abrasive layers 17 are formed each so that each specific abrasive ring reinforcement A1To A4Embedded in the associated grinding ring S1To S4In (1). One of the abrasive layers 17 faces the support 2 or 23, while the other abrasive layer 17 faces away from the support 2 or 23. This means that the grinding layer 17 is formed on the respective grinding ring S1To S4On the top side and on the underside. This allows double-sided machining with rough grinding tool 1. About advancingThe structure of the steps, refer to the first exemplary embodiment.
According to the invention, the support body 2 or the support bodies 2, 23 are used for supporting the grinding ring stack 3 and at the same time for coarse grinding itself. Due to the associated grinding ring reinforcement A1To A4Grinding ring S1To S4Not engaged in the working region 7 but lying closely against one another in an unstacked manner, thus allowing targeted wear, so that the abrasive grains 13 which are discontinuously worn are in abrasive engagement during the grinding process. Due to the oriented abrasive grains 13, a high removal capacity and a high level of aggressiveness are achieved, so that the rough grinding tool 1 can in particular also be used at a planar set angle, with the advantages according to the invention. The support body 2 itself or the support body 2, 23 itself has the characteristics of a rough grinding tool, in particular of a rough grinding disk. The rough grinding tool 1 is configured to rough grind a disk or a cup wheel, for example. If desired, it is possible to provide an additional paper separation layer between the grinding ring reinforcement and one of the adjacent grinding rings.
Claims (25)
1. A rough grinding tool has
-a support body (2, 23), wherein the support body (2, 23) comprises abrasive particles (16) for rough grinding, and
a through hole (5) for fastening a tool driver,
it is characterized in that
At least one grinding ring (S)1To S4) And an
Grinding ring reinforcement (A)1To A4) Secured to said at least one grinding ring (S)1To S4) At least a portion of the surface of (a),
wherein the first grinding ring (S)1) Forming a joining region (8) and a working region (7) surrounding said joining region (8), and
wherein the first grinding ring (S)1) And an associated first grinding ring reinforcement (A)1) Is fastened to the support body (2) in the joining region (8) and is released from the support body (2) in the working region (7).
2. The rough grinding tool according to claim 1, characterized in that the support body (2, 23) forms a grinding area (22) comprising the abrasive grains (16) bonded by means of a binder (15).
3. The rough grinding tool according to claim 2, characterized in that the support body (2, 23) comprises at least one support body reinforcement (18, 19).
4. The rough grinding tool according to claim 3, characterized in that the at least one support body stiffener (18) is arranged adjacent to a top side (20) and/or an underside (21) of the support body (2, 23).
5. The rough grinding tool according to claim 3, characterized in that the at least one support reinforcement (19) is embedded in the grinding region (22).
6. The rough grinding tool according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the support body (2, 23) has a support body outer diameter DTAnd the at least one grinding ring (S)1To S4) Having an outer diameter D of the grinding ringSWherein: 0.1. DS≤DT≤1.2·DS。
7. The rough grinding tool according to claim 6,
it is characterized in that the preparation method is characterized in that,
0.5·DS≤DT≤1.1·DS。
8. the rough grinding tool according to claim 6,
it is characterized in that the preparation method is characterized in that,
0.8·DS≤DT≤DS。
9. the rough grinding tool according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the support body (2, 23) is formed in a disc-shaped manner.
10. The rough grinding tool according to claim 9,
it is characterized in that the preparation method is characterized in that,
the support body (2, 23) has an offset (6).
11. The rough grinding tool according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the support body (2, 23) comprises a first support body (2) and a second support body (23), the at least one grinding ring (S)1To S4) Is arranged between the first support (2) and the second support (23).
12. The rough grinding tool according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
for the at least one grinding ring (S)1To S4) The number of (2): n is more than or equal to 1 and less than or equal to 9.
13. The rough grinding tool according to claim 12,
it is characterized in that the preparation method is characterized in that,
2≤N≤8。
14. the rough grinding tool according to claim 12,
it is characterized in that the preparation method is characterized in that,
3≤N≤7。
15. the rough grinding tool according to claim 1,
it is characterized in that the preparation method is characterized in that,
a plurality of grinding rings (S)1To S4) Are arranged overlapping each other, wherein the first grinding ring (S)1) Is fastened to the support body (2) and each further grinding ring (S)2To S4) Fastened to the underlying layerGrinding ring (S)1To S3)。
16. The rough grinding tool according to claim 15,
it is characterized in that the preparation method is characterized in that,
the first grinding ring (S)1) Is fastened to the support body (2) and a second grinding ring (S)2) Is fastened to the first grinding ring (S)1)。
17. The rough grinding tool according to claim 1,
it is characterized in that the preparation method is characterized in that,
the at least one grinding ring (S)1To S4) With oriented abrasive particles (13).
18. The rough grinding tool according to claim 1,
it is characterized in that the preparation method is characterized in that,
the at least one grinding ring (S)1To S4) Comprising a backing layer (11) having abrasive particles (13) disposed thereon.
19. The rough grinding tool of claim 18,
it is characterized in that the preparation method is characterized in that,
the backing layer (11) is configured as paper, vulcanized fibre, non-woven fabric and/or backing fabric.
20. The rough grinding tool of claim 19, wherein the backing fabric comprises polyester fibers, cotton fibers, and/or glass fibers.
21. The rough grinding tool of claim 20, wherein the backing fabric comprises a polyester/cotton blend.
22. The rough grinding tool according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the at least one grinding ring (S)1To S4) By filling treesThe grease (24) hardens.
23. The rough grinding tool according to claim 3,
it is characterized in that the preparation method is characterized in that,
the at least one support body reinforcement (18, 19) and/or the at least one grinding ring reinforcement (A)1To A4) Including glass fibers and/or jute fibers.
24. The rough grinding tool according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the at least one grinding ring (S)1To S4) At least one polishing layer (17) is formed in each case.
25. The rough grinding tool of claim 24,
it is characterized in that the preparation method is characterized in that,
the at least one grinding layer (17) is arranged on the at least one grinding ring (S)1To S4) On the top side and/or the underside.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2016/069903 WO2018036616A1 (en) | 2016-08-23 | 2016-08-23 | Roughing grinding tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109689300A CN109689300A (en) | 2019-04-26 |
| CN109689300B true CN109689300B (en) | 2022-04-29 |
Family
ID=56800285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680088712.0A Active CN109689300B (en) | 2016-08-23 | 2016-08-23 | Rough grinding tool |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20210245329A2 (en) |
| EP (1) | EP3504028B1 (en) |
| CN (1) | CN109689300B (en) |
| AU (1) | AU2016421095B2 (en) |
| BR (1) | BR112019002968B1 (en) |
| ES (1) | ES2865162T3 (en) |
| MX (1) | MX2019002076A (en) |
| PL (1) | PL3504028T3 (en) |
| RU (1) | RU2721972C9 (en) |
| TW (1) | TWI749040B (en) |
| WO (1) | WO2018036616A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2060145C1 (en) * | 1991-05-05 | 1996-05-20 | Акционерное общество открытого типа - Научно-производственное объединение "Стеклопластик" | Abrasive tool |
| US5560744A (en) * | 1994-01-27 | 1996-10-01 | Schaffner Manufacturing Co., Inc. | Buffing |
| DE69606168T2 (en) * | 1995-03-02 | 2000-09-28 | Minnesota Mining & Mfg | METHOD FOR STRUCTURING A SUBSTATE USING A STRUCTURED ABRASIVE ARTICLE |
| FR2898070B1 (en) * | 2006-03-06 | 2009-01-09 | Saint Gobain Abrasifs Tech | FINE BEARING WHEEL, USE THEREOF, METHOD AND DEVICE FOR MANUFACTURING THE SAME |
| DE102008023946B3 (en) * | 2008-05-16 | 2009-04-02 | August Rüggeberg Gmbh & Co. Kg | Rough-grinding wheel |
| EP2286959B1 (en) * | 2009-08-22 | 2014-05-07 | August Rüggeberg GmbH & Co. KG | Scrubbing-grinding tool |
| US8585470B2 (en) * | 2010-09-22 | 2013-11-19 | Black & Decker Inc. | Wearable backing for an abrasive flap disk |
| CN102363287B (en) * | 2011-10-20 | 2013-07-31 | 宁波大华砂轮有限公司 | Resin grinding wheel and manufacturing method thereof |
| JP6300441B2 (en) * | 2012-12-27 | 2018-03-28 | スリーエム イノベイティブ プロパティズ カンパニー | Circular support plate, nonwoven fabric polishing roll, roll assembly and polishing method |
| DE102013212666A1 (en) * | 2013-06-28 | 2014-12-31 | Robert Bosch Gmbh | Process for producing an abrasive |
| TWM480434U (en) * | 2013-07-29 | 2014-06-21 | Hongia Industry Co Ltd | Diamond tool |
-
2016
- 2016-08-23 ES ES16757009T patent/ES2865162T3/en active Active
- 2016-08-23 RU RU2019103565A patent/RU2721972C9/en active
- 2016-08-23 AU AU2016421095A patent/AU2016421095B2/en not_active Ceased
- 2016-08-23 EP EP16757009.2A patent/EP3504028B1/en active Active
- 2016-08-23 CN CN201680088712.0A patent/CN109689300B/en active Active
- 2016-08-23 WO PCT/EP2016/069903 patent/WO2018036616A1/en unknown
- 2016-08-23 BR BR112019002968-0A patent/BR112019002968B1/en active IP Right Grant
- 2016-08-23 US US16/327,369 patent/US20210245329A2/en not_active Abandoned
- 2016-08-23 MX MX2019002076A patent/MX2019002076A/en unknown
- 2016-08-23 PL PL16757009T patent/PL3504028T3/en unknown
-
2017
- 2017-08-02 TW TW106126118A patent/TWI749040B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU2016421095B2 (en) | 2022-03-31 |
| CN109689300A (en) | 2019-04-26 |
| TWI749040B (en) | 2021-12-11 |
| WO2018036616A1 (en) | 2018-03-01 |
| MX2019002076A (en) | 2019-05-15 |
| US20190224814A1 (en) | 2019-07-25 |
| RU2721972C1 (en) | 2020-05-25 |
| US20210245329A2 (en) | 2021-08-12 |
| AU2016421095A1 (en) | 2019-03-07 |
| EP3504028A1 (en) | 2019-07-03 |
| TW201806695A (en) | 2018-03-01 |
| EP3504028B1 (en) | 2021-03-17 |
| RU2721972C9 (en) | 2020-07-29 |
| BR112019002968A2 (en) | 2019-05-14 |
| PL3504028T3 (en) | 2021-08-09 |
| BR112019002968B1 (en) | 2021-09-21 |
| ES2865162T3 (en) | 2021-10-15 |
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