EP3687733A1 - Schleif- und/oder trennwerkzeug und verfahren zum schleifen und/oder trennen - Google Patents
Schleif- und/oder trennwerkzeug und verfahren zum schleifen und/oder trennenInfo
- Publication number
- EP3687733A1 EP3687733A1 EP18785502.8A EP18785502A EP3687733A1 EP 3687733 A1 EP3687733 A1 EP 3687733A1 EP 18785502 A EP18785502 A EP 18785502A EP 3687733 A1 EP3687733 A1 EP 3687733A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- cutting tool
- surface area
- separating
- cutting
- 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.)
- Pending
Links
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
- B24D5/12—Cut-off wheels
-
- 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
- B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives
-
- 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
-
- 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
- B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
-
- 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 invention relates to a grinding and / or cutting tool which has at least one surface area for side grinding and a surface area for circumferential grinding and / or cutting.
- grinding wheels By use, grinding wheels, roughing wheels and cutting wheels are known.
- the grinding wheels are used in various applications such as peripheral grinding, side grinding, external or internal cylindrical grinding.
- the roughing wheels are intended to achieve comparatively large material removal.
- the cutting discs are not used for surface removal of material from a workpiece, but serve to cut a workpiece along a line.
- the invention has for its object to provide a grinding and / or cutting tool that is more flexible than the known tools.
- this object is achieved in that the surface area for side grinding and the surface area for circumferential grinding and / or separation have different removal properties from each other.
- the removal properties of the respective surface area can be adapted in accordance with the load provided for the grinding and / or separating tool, and on the other hand, a combination tool is created which can be flexibly used in different functions.
- the removal properties can be provided in such a way that they produce different effects when machining a workpiece, for example rough grinding, fine grinding or cutting, having different service lives or being able to withstand different mechanical loads. It is then appropriate, for example, to provide the removal properties of the different surface areas with different service lives, if it can be foreseen that the different surface areas will be used for different lengths of time or in different loads.
- the removal properties can be provided so that the service life accordingly are adjusted.
- An example of such an application is that the grinding and / or cutting tool is intended to sharpen edges, but the surface area for side grinding allows only rectilinear and convex curved portions of the edge to be machined and for concave curved portions the surface area is used for peripheral grinding got to.
- the grinding and / or separating tool can be advantageously adapted to the respectively expected mechanical loads. Since, for example, during cutting or rough grinding, substantially greater loads are applied to the respective surface area than, for example, during fine grinding, the material properties can be adjusted accordingly.
- the surface regions differ in their material properties from one another, preferably in that they differ
- Abrasives preferably as abrasive grains of e.g. Corundum, quartz, pumice, diamond, silicon carbide and / or cubic boron nitride present, different abrasive grain shapes and sizes, grain scattering, grains, hardness, microstructures, substrates and / or binder.
- abrasive grains e.g. Corundum, quartz, pumice, diamond, silicon carbide and / or cubic boron nitride present, different abrasive grain shapes and sizes, grain scattering, grains, hardness, microstructures, substrates and / or binder.
- the grinding and / or cutting tool has a rotationally symmetrical shape.
- the surface area for side grinding expediently has the shape of a base of a circular cylinder or a lateral surface of an ellipsoid, a onus or a section of a cone or ellipsoid.
- an angle between the generatrices of the surface area and the axis of symmetry of the lateral surface is expediently more than 60 °, particularly preferably more than 65 ° it is preferably less than 85 °, particularly preferably less than 80 °.
- an angle between the surface lines of the surface area and the axis of symmetry of the lateral surface is ⁇ 3 °, particularly preferably ⁇ 2 °.
- the surface area is intended for separation, it can take the form of a
- the surface area for cutting in particular at its radially outer edge, apart from a necessary for the grinding or cutting roughness, preferably continuously, round. He is preferably free of saw teeth. While it would be conceivable to provide the surface area for separation at the radially outer edge with material recesses such as slots to form a segment separation disk, in the preferred embodiment it has an uninterrupted edge surface at the radially outer edge.
- a transition region is formed between the surface area for side grinding and the surface area for peripheral grinding or / and separating, in which the grinding and / or
- Separation tool for both side grinding and for circumferential grinding or / and separating is usable.
- the grinding and / or separating tool expediently comprises a straight disk, a cup wheel or a sanding pad.
- the surface area for peripheral grinding or / and separating is preferably formed on an outer edge or an outer circumferential surface of the grinding wheel or the cup or on an outer edge of the sanding pad.
- the surface area to the side Grinding is expediently formed on at least one of the base surfaces of the grinding wheel or of the grinding cup or on an upper and / or lower side of the grinding plate adjoining the edge.
- the grinding and / or cutting tool has two of the surface areas for side grinding and the two surface areas for side grinding are preferably arranged at a distance from each other.
- the surface area for circumferential grinding or separation between the two surface areas is arranged for side grinding and preferably separates them from each other.
- At least one of the side grinding surface areas adjoins or is spaced apart from the surface area for peripheral grinding or cutting.
- At least the surface area for circumferential grinding or separating on the one hand and at least one of the surface areas for side grinding on the other hand have different material properties.
- the surface areas may be for side grinding, rough grinding (rough grinding), middle or finish grinding, and surface area for peripheral grinding or separation for center grinding, finish grinding for separation.
- the different surface areas for side grinding differ in their shapes from each other.
- the above-mentioned shapes of surface areas for side grinding eg, circular cylindrical, conical or ellipsoidal shapes, may be combined with each other.
- one of the surface areas may be for side grinding be provided for example for rough grinding and the other surface area for soap grinding or fine grinding.
- the grinding and / or separating tool has a side grinding body, which comprises the surface area for side grinding, and a peripheral grinding and / or separating body, which comprises the surface area for peripheral grinding or / and separating.
- a side grinding body which comprises the surface area for side grinding
- a peripheral grinding and / or separating body which comprises the surface area for peripheral grinding or / and separating.
- Fixing preferably can be done by means of screws.
- the side grinding body and / or the peripheral grinding or / and separating body are preferably releasably connectable to one another.
- the side grinder or the peripheral grinder and / or separator can be removed from the grinding and / or cutting tool and replaced if necessary, when worn by use.
- the costs for the operation of the grinding and / or cutting tool can be significantly reduced, since the respective body can be replaced depending on the wear.
- Separating tool to be equipped with side grinding bodies and / or with varioussschleif- and / or separating bodies, which differ respectively in their properties, in particular the Abtragseigenschaften. Can thus advantageously the
- the grinding and / or cutting tool on a base body which is formed at least in the surface area for peripheral grinding and / or separation as an abrasive body or cutting body.
- the base body as a grinding body, preferably as a grinding wheel, cup or grinding pad, and / or as a separating body,
- the main body is preferably made of a combination of abrasives and a binder as a carrier for the Abrasivstoff formed, which preferably comprises a reinforcement of fibers, for example glass fibers. It can be uniformly formed from a single material.
- the base body could be provided with a coating containing the abrasive.
- the pad may be a coating comprising abrasive grains, such as a
- the base body is partially formed of different materials. It has proven to be particularly advantageous to form the base body in areas that are heavily stressed during grinding and / or cutting by grinding or cutting, from a different material than in less mechanically stressed areas.
- the main body could be in strong
- stressed areas are made of more resistant material, in order to achieve a long service life, and in other areas of less resistant material.
- the material costs for producing the grinding and / or separating tool can thereby be reduced, since more cost-effective material can be used for the less heavily loaded areas.
- the base body is preferably at least, possibly exclusively, in an area of the basic body which, during grinding and / or cutting, is intended for attacking the body
- machining material is provided, provided with the abrasive.
- the base body is provided with abrasive material in only one or more of the surface areas and is free of abrasive material outside the surface area (s).
- the surface area for side grinding, in which the abrasive is provided has a maximum thickness of 7 mm, preferably a maximum of 5 mm. The production costs are lower in comparison to a completely provided with abrasive base, since the abrasive itself in itself causes relatively high costs.
- the base body is provided such that it can be used on both sides, in particular on both base surfaces.
- the main body may be in the grinding and / or separating tool in two use positions
- the base body can be arranged turned after wear on a first base in the grinding and / or cutting tool and thus the life of the grinding and / or cutting tool can be doubled.
- the main body can form the abovementioned peripheral grinding or / and separating body.
- a carrier body which is provided for arrangement on the base body and for receiving an abrasive body such as a, in particular plate or foil-shaped abrasive dressing.
- the carrier body can preferably be fastened to the base body, particularly preferably releasably, preferably by means of screws.
- the carrier body is expediently formed from plastic, from a composite material, preferably with fiber reinforcement, from metal, for example a sheet, from cardboard glued together in several layers or from paper glued together in several layers. It can be provided to save material with one or more recesses, which optionally with a
- vibration-resistant material possibly a rubber or the like, can be filled or can.
- At least one of the surface areas for side grinding is formed by a, in particular plate- or film-shaped, abrasive support, which is arranged on the base body and / or the carrier body and is connected to it.
- the carrier body may form the above-mentioned side grinding body.
- the abrasive pad is preferably formed by an abrasive sheet, a sandpaper, a sanding belt, a sanding film, or a sandpaper. It is firmly connected in the preferred embodiment of the invention with the base body and / or the carrier body, for example glued.
- the grinding and / or cutting tool is given an additional mechanical stability, which has a positive effect especially during side grinding, in particular rough grinding.
- the grinding pad is preferably formed by a composite material.
- the composite suitably comprises a carrier web of fibers, e.g.
- the base body and / or the carrier body has at least one recess into which the abrasive dressing can be inserted.
- Carrier body formed as a trough, which has such a depth that the abrasive pad when it is attached to the base body and / or the carrier body reaches the same height as an edge of the trough or beyond the edge protrudes.
- the recess is expediently at a distance from the
- the last-mentioned surface area is formed by the base body and / or the carrier body, it can on the one hand form the outer edge of the grinding and / or separating tool and, on the other hand, the edge of the recess.
- the surface area for circumferential grinding or cutting off the grinding and / or cutting tool in the radial direction to the outside.
- the base body and / or the carrier body at least one projection, preferably a plurality of projections, for supporting the
- Abrasive support against a shift in relation to the base body and / or the support body wherein the projection is preferably formed by a, in particular extending in the radial direction, web of a provided for receiving the abrasive support surface of the base body and / or the support body protrudes.
- Carrier body on the surface for side grinding and / or on the surface for peripheral grinding and / or separating at least one stage, preferably a plurality of stages, for receiving the grinding pad forming
- the grinding pads are preferably arranged on the steps, that they rest in each case one of the steps with one of its edges on the edge.
- the sanding pads then on the one hand attach particularly well to the body or the carrier body, on the other hand, they can also be arranged very well superimposed.
- the step has a height equal to the height of a
- Base body and / or the carrier body corresponds.
- step or steps are formed successively in the radial direction, in particular if the step or steps are or are formed ascending in the radial direction inwards, then in the surface region for side grinding on the grinding and / or separating tool two or more of the support portions are arranged one above the other in the direction radially outward.
- a greater thickness can be arranged on the abrasive material forming material and thus the
- the base body and / or the carrier body is particularly well suited for forming a fan disc, wherein the support portions in the surface area for
- the steps are formed in the circumferential direction ascending or descending in the base body for the surface area for peripheral grinding and / or separating, so that also there can arrange the support sections as in a fan disc sections superimposed.
- Carrier body which is preferably substantially disc-shaped edges of the steps in the radial direction and / or along at least one circular line, which is parallel to an edge of the grinding and / or cutting tool, arranged.
- Carrier body and the grinding pads also in grinding tools and / or at Apply separation tools that are intended only for side grinding or only for circumferential grinding or cutting.
- the surface area for circumferential grinding and / or cutting comprises at least a portion for circumferential grinding and a portion for separation, which protrudes in the radial direction outwardly from the portion for circumferential grinding.
- the separating section is formed by a disc having a thickness of ⁇ 5 mm, preferably ⁇ 4 mm. If a portion for circumferential grinding is formed on one side of the partition portion, or peripheral grinding portions are formed on both sides of the partition portion, a workpiece can first be cut by the grinding and / or separating tool with the separation portion and thereafter machined directly by the peripheral grinding portion.
- Such a grinding and / or cutting tool is particularly suitable for machining a pipe.
- a tube wall are cut by means of the separating section and at the edge at which the tube has been separated by means of the separating section, with the grinding and / or cutting tool directly and without a change of the tool is necessary, a shaping be ground.
- the border can be smooth ground or at the edge of the tube, for example, a bevel are introduced, which is advantageous for welding the tubes.
- the grinding and / or separating tool is provided with a grinding machine for driving and / or holding the grinding and / or separating tool.
- a device for holding the grinding machine in a position for processing a workpiece is provided for the grinding machine.
- the holding device comprises a stop with which the grinding machine can be supported on the workpiece to be machined so as to be stable against tilting and can be arranged in a position for machining the workpiece for grinding or cutting.
- the stop has at least one roller or a sliding shoe which is or can be applied against the workpiece.
- the grinding machine can be arranged by the holding device on the workpiece in a position in which the surface area for cutting or peripheral grinding or the surface area for side grinding are arranged such that the workpiece can be processed with both surface areas.
- a guide device is provided for the grinding machine with which the grinding machine is supported in the direction perpendicular to the axis of rotation of a shaft in which the grinding and / or cutting tool is mounted.
- the guide means is formed by at least one web projecting from the grinding machine. The web is preferably so far from the grinding machine that it protrudes in the radial direction over the grinding and / or cutting tool with respect to the grinding or cutting tool.
- the holding device is expediently provided to hold the grinding machine at one edge at one end of a tube.
- the holding device is expediently provided to hold the grinding machine such that it can be moved along the edge of the pipe during machining of the pipe edge and thereby supported on the pipe.
- the grinding and / or separating tool according to the invention can be used particularly advantageously in combination with the grinding machine and the holding device. If, for example, a shaping is to be introduced into the edge of the tube, which is conducive to welding the pipe end by welding, for example a so-called tulip shape, the grinding and / or separating tool can be particularly simple and precise with the holding device, on the other hand Abrasion properties of the surface area for side grinding and the surface area for circumferential grinding, which both act in the machining of the edge, are provided in their Abtragseigenschaften such that they wear evenly.
- the holding device has at least one rotatable roller, which can be applied to the tube inside or the tube outside and by means of which a connecting part of the holding device, on which the grinding machine is to be arranged, along the edge is movable.
- the holding device has at least two of the rollers and the rollers can be applied simultaneously to the inside of the tube and / or the outside of the tube.
- the holding device is provided such that the rollers can be applied simultaneously only on the inside of the tube, only on the outside of the tube or on the inside of the tube and on the tube outside.
- a particularly stable arrangement of the holding device on the pipe can be achieved if two of the rollers are provided on the pipe at least on the tube inside or on the tube outer soap when the rollers.
- the holding device comprises an additional supporting roller to be arranged on the grinding and / or separating tool, which is rotatable about an axis of rotation coaxial with the axis of rotation of the grinding and / or separating tool and by means of which the holding device can be supported on the pipe.
- the support roller is arranged on the side of the grinding and / or cutting tool, which faces away from the side of the grinding and / or cutting tool on which a grinding and / or cutting tool supporting shaft of the grinding machine is arranged.
- the position of the roller or rollers of the grinding machine or the grinding and / or separating tool is adjustable in order to adapt the holding device to the respective pipe diameter and / or the respective grinding and / or cutting tool.
- the distance between the rollers can be adjustable from one another.
- the holding device can be adapted to the size of the diameter and the thickness of the pipe to be machined.
- the rollers can be arranged under tension against each other on the pipe.
- the holding device has a device for adjusting the position of the rollers, which is adjustable by hand, motor, preferably electric motor, hydraulic or pneumatic, for example via a spindle gear, operable.
- the holding device has an adjusting device for arranging the at least one roller under tension on the tube.
- the holding device has a device for its attachment to the tube inside.
- the fastening device for the holding device and thus for the grinding machine forms a Reference point ⁇ in the direction of the pipe axis of symmetry.
- the holding device can be easily attached to the tube without it interfering with the processing of the edge. This is achieved, inter alia, that the fastening device, as provided in a particularly preferred embodiment of the invention, at a distance from the edge to be machined on the inside of the tube attacks.
- the grinding and / or cutting tool and the roller can be moved during processing of the pipe edge along the pipe inside and / or the tube outside without abutting the fastening device.
- the fastening device is expediently set up to clamp the holding device on the inner side of the tube.
- the holding device comprises means for rotating the grinding machine about the axis of rotation of the pipe in order to allow processing of the edge of the pipe.
- the fastening device expediently comprises at least two, preferably at least three, clamping elements for supporting the holding device on the tube inside.
- the holding device can be arranged centered in the tube.
- the clamping elements for clamping the holding device in the radial direction of the guide body are movable away.
- the clamping elements can be extendable from the guide body or folded away. They include for this purpose preferably a, preferably braced, threaded spindle or rack, a parallelogram, a scissors clamp, a fold-out lever frame, which is preferably operable with a lever side by means of the guide body and with the other lever side on the tube inside can be applied, and / or a linear motor for extension a clamping member.
- the fastening device is expediently set up such that supporting elements of the clamping elements to be attached to the inside of the tube are always arranged at the same radial distance from the guide body in different positions.
- the grinding and / or cutting tool of FIG. 8 mounted on a grinding machine when machining a workpiece
- FIG. 13 the grinding and / or cutting tool of FIG. 8 mont
- FIG. 14 shows another grinding and / or grinding device according to the invention
- an inventive grinding and cutting tool 1 is shown, which is substantially disc-shaped. It comprises a sleeve 1 1, with which it can be attached to a grinding machine, such as an angle grinder, and a fixedly connected to the sleeve 1 1 base body 6, which is formed from a combination of substances comprising an abrasive mixed with binder. On opposite base surfaces of the base body 6 grinding pads 7, 7 'are arranged, which form surface areas 2.4 for side grinding. A surface area 3 for separating at an outer edge 5 of the cutting and separating tool 1 is formed by the base body 6.
- the sleeve 1 1 has a shape such that it can be attached to both sides of the grinding machine.
- the combination of materials, from which the base body 6 is formed, is suitable for making a cut with the grinding and separating tool 1 on a workpiece with the surface region 3 in order to separate it.
- the abrasive pads 7,7 ' are intended for use for side grinding. It can be provided to form the two abrasive pads 7, 7 'of the same material or of different materials. In the former case, the life of the grinding and cutting tool 1 increases compared to a grinding tool that can be used with only one side, since the grinding and cutting tool 1 can turn on a grinding machine and vice versa, if one of the surface regions 2.4 worn is. In the latter case, with the various Surface areas 2.4 different grinding effects on one
- machined workpiece can be achieved.
- a grinding and cutting tool 1a shown in FIG. 2 essentially has the shape of a sanding disk.
- a main body 6a of the grinding and cutting tool 1a which is connected to a sleeve 1 1 a for attachment to a grinding machine, has on its surface a recess 8, in which a grinding pad 7a is inserted, which forms a surface portion 2a for side grinding.
- the surface area 2a for side grinding has the shape of a lateral surface of a cone.
- a radially outer edge of the main body 6a forms a surface area 3a for separation.
- Fig. 3 shows another grinding or cutting tool 1 b, which differs from that of FIG. 2 essentially in that a surface area 2b for side grinding, which is formed by a grinding pad 7b, has a convexly curved shape. With a surface area 3b on the radially outer edge of a base body 6b material can be separated.
- FIG. 4 Another grinding and cutting tool 1 c, which is shown in Fig. 4, differs from that of FIG. 3 in particular in that a base body 6 c has two different material areas.
- the base body 6c comprises abrasive material only in an edge region 20 which forms a surface region 3c for grinding and / or cutting and is free of the abrasive substance outside the edge region 20.
- the comparatively cost-intensive abrasive must be provided only in the edge region 20. For this reason, the main body 6c and thus the entire grinding and cutting tool can be produced more cheaply.
- FIG. 5 shows a further grinding and cutting tool I d according to the invention, which essentially has the shape of a sanding disk. It comprises a main body 6d, which is formed from a combination of substances comprising an abrasive-added binder. An outer base of the main body 6d is formed as a surface portion 4d for side grinding. Further, an edge of the main body 6d forms a surface area 3d for separation. On the other base surface of the base body 6d a support body 15 is arranged, on which a sanding pad 7d is fixed, which forms a surface portion 2d for side grinding. The carrier body 15 is shaped such that the surface region 2d has the shape of a lateral surface of a cone.
- the grinding and cutting tool Id can be used in three different functions, namely the surface area 2d for surface grinding with conical surface shape, with the surface area 4d for side grinding for grinding with a flat surface shape and with the surface area 3d for cutting a workpiece.
- a grinding and cutting tool 1 e shown in FIG. 6 comprises a base body 6e made of a combination of binder and abrasive material.
- the main body 6e has a radially outer edge, which is thickened compared to an inner region of the main body 6e.
- the outer edge forms a surface area 3e, by means of which a workpiece can be separated or machined by circumferential grinding.
- support bodies 15e, 16e are arranged on both sides of the main body 6e, in which recesses 8e, 8e 'for receiving sanding supports 7e, 7e' are provided, which form surface areas 2e, 4e for side grinding.
- the carrier body 15e is shaped such that the
- Surface area 2e has the shape of a lateral surface of a cone.
- the carrier body 16e has a shape such that the surface area 4e is convexly curved. Even with the grinding and cutting tool le a workpiece with the different surface areas 2e, 3e, 4e can be processed in different ways.
- a further grinding and separating tool I f which is shown in FIG. 7, differs from that according to FIG. 6 in particular in that grinding pads 7f, 7f 'are also arranged on a surface region 20f at the edge of a main body 6f. In this way, larger grinding surfaces are created on both surface areas 2f, 4f for side grinding.
- another grinding and / or cutting tool I x is shown, which has a base body 6x, the edge of which forms a surface portion 3x for circumferential grinding, and a support body 5, which releasably attach to the grinding and / or cutting tool I x or releasably connectable to the main body 6x.
- the grinding and / or cutting tool I x comprises a shaft 46 with external thread, on which the base body 6 x and the support body 5 against each other by means of a
- Clamping nut 47 are clamped.
- the detachable connection could be formed by screwing the carrier body 5 directly to the base body 6x.
- a grinding and / or cutting tool I x 'shown in Fig. 22 differs from that of Fig. 21 in that three circular grooves 45x, 45x', 45x "are coaxially formed in a base body 6x ' the main body 6x 'can be the support body 5x, 5', 5x "different diameter put on.
- the grinding and / or cutting tool I x 'even continue to be used when the diameter of the base body 6 x' reduced by material removal during peripheral grinding or cutting. Once the diameter is reduced so that its radially outer edge in the radial direction is at the same height as the radially outer edge of the carrier body 5x, 5x ', the respective
- Peripheral grinding or cutting is worn so far that its diameter is equal to or smaller than that of the support body 5x, the support body 5x is removed and the support body 5x 'placed.
- Separating tool I x ' can be used for handling in an analogous manner with the use of the support body 5x "so long for circumferential grinding until the diameter of the base 6x' has reduced so far that is equal to or smaller than that of the support body 5x".
- Another inventive grinding tool lg which is shown in Fig. 8, similar in construction to the grinding and cutting tool 1 a of FIG. 2. It differs from the grinding and cutting tool of FIG. 2, however, in that an edge of a A recess 8g for receiving a grinding pad 7g is formed at a distance from a radially outer edge of the base body 6g, so that As shown in Fig.
- the abrasive pad 7g has cutouts 9 arranged in the radial direction and at a distance from each other, and the body 6g has lands. As shown in Figs 10, which protrude in the radial direction from the edge and have a matching to the cutouts 9 shape.
- the abrasive support 7g better fixed to the base 6, additionally supported in the circumferential direction and its radially outer edge protected from detachment when working with the grinding tool la, since the edge of the
- Base body 6g protrudes beyond the end of the grinding pad 7g and surrounds it.
- the sanding pad 7g can be attached more easily to the base body 6g.
- a further grinding tool 1 h shown in FIG. 9 differs from that according to FIG. 8 in that a carrier body 15 h is arranged on a base body 6 h, which carries a grinding support 7 h.
- an edge region which forms a surface region 3h for peripheral grinding, grips the grinding support 7h and the carrier body 15h.
- the main body 6h which is formed from a combination of binder and abrasive material, is flat on its underside, so that the underside can be used as a surface area 4h for side grinding.
- Fig. 10 shows a variant of a grinding tool I i, which is constructed in principle as the grinding tool l g of FIG. 9, but in which a surface portion 2i is concavely curved to the side grinding.
- Step 15 shows a further conical grinding and cutting tool 1 p according to the invention, which has a base body 6b and abrasive pads 7p, 7p ', 7p "arranged on the separator 6b.
- Steps 40, 41, 42 are formed on the base body 6p. which ascend successively in the radial direction from outside to inside, wherein edges of the steps 40, 41, 42 are circular top step 40 are formed in the radial direction straight webs 10p projecting from the steps 41, 42 upwards.
- webs 10p ' are formed starting from the step 41 and protrude upwards from the step 42.
- the abrasive pads 7p', 7p" are annular, with their outer diameter corresponds to the outer diameter of the body 6p and its inner diameter is chosen so large that the grinding pads 7p, 7p ', 7p "respectively abut on the outer side of the collar 17 and the outer edges of the steps 40, 41.
- the abrasive pads 7p', 7p" are provided with recesses respectively corresponding to the shapes of the ridges 10p, 10p ', so the grinding pads can be placed respectively in engagement with the webs 10p, 10p 'in the recesses on the steps 40,41, 42.
- the grinding and cutting tool 1 p in an outer ring region which is normally subjected to particularly high stress, the three grinding pads 7p, 7p ', 7p "and can therefore be used for a particularly long time.
- the main body 6p is formed by a combination of binder and abrasive substance and can therefore be used with its edge 3p for peripheral grinding or cutting.
- Fig. 15e shows another inventive grinding and cutting tool 1 q, which differs from the grinding and cutting tool 1 p in that a base body 6q is flat on a provided for receiving grinding pads 7q, 7q ', 7q' 'side and can be used on the flat side in another function for grinding.
- FIG. 16 shows a further grinding and cutting tool I r according to the invention, which differs from those according to FIG. 15 in particular in that a surface of a base body 6r has a convex shape.
- Fig. 1 6c shows a grinding and separating agent 1 s, the base body 6s on a side facing away from a provided for receiving grinding pads 7s side is flat.
- different grinding effects can also be achieved here with the different sides.
- FIG. Another grinding and cutting tool lr 'according to the invention is shown in FIG. It differs from those of FIGS. 15 and 16 in particular in that a base body 6r 'is disc-shaped and at its radially outer edge a rim-shaped projection forming a surface portion 3r 'for peripheral grinding.
- the grinding and cutting tool lr 'further comprises a support body 5r', which has a similar shape as the main body 6r of Fig. 16.
- the main body 6r 'and the support body 5r' can by means of a shaft 46r 'and a clamping nut 47r' together connect.
- the base body 6r 'or the support body 5r' exchange when it is worn.
- fan-shaped grinding layers 7t are arranged on a base body 3t.
- the base body 6t has at its outer edge on a collar-shaped projection which forms an edge 3t for circumferential grinding. Between the collar-shaped projection and an inner projection 1 7t of the main body 6t, an annular surface for receiving grinding pads 7t is formed.
- the sanding pads 7t have a narrower area 45, which has a width such that it fits snugly between the projection 17t and the outer edge 3t on the base body 6t and can be stuck there. With lateral projections 46, 47, the sanding pads can be placed on the outer edge 3t and the inner projection 17t. Apart from the sections with which the sanding pads 7t are placed directly on the base body and fixed there, the sanding pads 7t lie loosely on each other.
- the base body is convexly curved at 6t in the area between the outer edge 3t and the projection 17t.
- a grinding and cutting tool 1 u shown in Fig. 18 differs from that of Fig. 17 in that a base body 6u has a planar shape. Further, abrasive pads 7u are provided with steps 38, 39 in a region where they are adhered to the main body 6u between an outer edge 3u and a protrusion 17u with which they project on the rim 3u and on the projection 1u, respectively let it stick together.
- FIG. 19 another inventive grinding and cutting tool I v is shown, which is a base body 6v and a support body 5v, which can be put into each other, is formed.
- Base body 6v and the carrier body 5v in a suitable position auf formulation, Abrasive pads 7v are provided. If the base body 6v and the carrier body 5 are arranged so that they fit together, the steps are formed continuously in the radial direction up to the outer edge of the main body 6v.
- the physical separation of the base body 6v and the carrier body 5v makes it possible to produce the main body 6v and thus the edge 3v of a material provided with abrasive material and the carrier body 5v made of plastic
- the tool can be used inexpensively if the only one of the body is worn, the other but can be used.
- the steps 43, 43 'formed in the circumferential direction create the possibility of arranging the grinding supports 7v in such a position on the base body 6v and the carrier body 5v and, if necessary, bonding them so that they do not have to be curved in contact with one another.
- the possibility is thereby created to form a plurality of layers of the abrasive pads with particularly good bonding with the base body 6v and possibly the carrier body 5v on the grinding and cutting tool I v.
- FIG. 20 shows another grinding and cutting tool 1 w according to the invention, which differs from that according to FIG. 19, in particular in that it has a substantially planar shape. Further, a support ring 44 is formed below a lower part 6w of a main body.
- a further grinding and cutting tool 1 y according to the invention shown in FIG. 23 differs from those according to FIGS. 1 to 20 in particular in that a surface region 3y for circumferential grinding, which is formed on a base body 6y, has a collar-shaped projection. The projection is approximately perpendicular to a surface portion of the base body 6y, on the one
- Carrier body 5y on which the sanding pads 7y are fixed by gluing, is arranged.
- the projection is provided in such a position and has a height such that it cups the abrasive pads 7y pot-like.
- the base body 6y and the support body 5y detachably fastened, so that they can be replaced respectively removed, when they are worn out.
- the main body 6y and the carrier body 6y can be mutually clamped by means of a clamping screw 47y on a shaft 46y.
- Fig. 11 shows the use of a further grinding and cutting tool Ij, which is essentially constructed like the grinding tool 1 g of Fig. 8, but at its edge, which forms a surface portion 3g for separating, has a smaller thickness than that Grinding tool lg and therefore particularly suitable for cutting.
- the grinding and cutting tool Ij is attached to an angle grinder 18 and is used to separate a bolt 19 attached to and protruding from a metal plate 20 and to grind the parting surface immediately after cutting. For this purpose, as shown in Fig.
- the grinding machine 18 is held such that a surface portion 2j for side grinding along a line on the metal plate 20 rests and the grinding and cutting tool Ij guided under rotation in the direction of the bolt 19, so that an edge of the grinding and cutting tool Ij, which forms a surface portion 3j for separation, separates the bolt 19 from the metal plate 20.
- the metal plate in the separation area can then be ground directly.
- Fig. 1 1 c shows a support bracket 21 which can be attached to the angle grinder 18.
- the support bracket 21 has a roller 22, with which the angle grinder can be arranged tilt-stable when resting the grinding and cutting tool Ij on a substrate.
- the angle grinder can now be supported on the support bracket and is automatically held in the angular position to the metal plate 20, in which it can be ground with the surface portion 2j.
- FIG. 12 Another assembly of a grinding machine 18n, which is provided with a grinding and cutting tool I n, with a support bracket 21 n is shown in Fig. 12. It differs from that of FIG. 1 1 in that a guide device 33 is arranged on a part 36 of a housing of the grinding machine 18n, which comprises two webs 34,35 arranged at a distance from each other. The webs 34, 35 are arranged at such a distance from one another that the bolt 19 can be inserted between them.
- the webs 34.35 support the
- a projection 37 is provided at the end of webs 34p, 35p, which projection is supported on the metal plate 20 during cutting or grinding and thereby forms an additional guide.
- FIG. 13 the use of another grinding tool 1 k is shown, which is constructed substantially the same as the grinding tool Ij of FIG. 1 1 and sits on a grinding machine 18k.
- the grinding machine 18 k is attached to a holding device 23, which is arranged on a pipe 24 with a circular cross section and the grinding machine 18 k holds in a position for processing the edge 25.
- the holding device 23 comprises a device 26 for its attachment to the tube 24, which has three supports 27, each of which may comprise a braceable threaded spindle and can be arranged under tension on the inside of the tube 24.
- a holding unit 28 of the holding device 23, to which the grinding machine 18 k is attached, is rotatably connected to the fastening device 26 via a connecting unit 29, which comprises a pivot joint.
- the holding unit 28 is connected via rods 30 to the connection unit 29 and displaceable in the longitudinal direction of the rods 30 relative to the connection unit 29.
- the holding unit 28 comprises a roller 31, which is supported on the inside of the tube 24 and thereby fixed relative to the tube 24 in the radial direction, the position of the grinding machine 18 k and the grinding tool 1 k at the edge 25.
- the holding unit 28 is pushed away by means of a spring 32 of the connecting device 29 in the longitudinal direction of the rods 30, so that the roller 31 is applied to the tube 24 always under tension on the pipe inner wall when arranged the assembly of grinding machine 18
- the grinding machine 18 For processing the edge 25 of the tube 24, the grinding machine 18, after it has been explained as above and shown in Fig. 13 by means of Gareicardi 23 on the tube 24, initially arranged so that they are with the grinding tool 1 k on the area of Edge 24 rests, which is to be processed. Then the grinding machine 18k is turned on and the grinding tool 1 k set in rotation. The grinding machine 18k is then rotated about the fastening device 29 and thus around the tube axis (as shown by the arrow D in FIG. 13) and thereby moved along the tube edge 24. The holding unit 28 is pressed by the spring 32 away from the fastening device 26 toward an inner wall of the tube 24 and the roller 31 thus pressed against the pipe inner wall.
- the grinding tool 1 k Since the position of the grinding machine 18k is fixed with respect to the roller 31, the grinding tool 1 k is at the movement along the edge 25 always in the intended processing position.
- the arrangement shown of the grinding tool 1 k is particularly suitable for forming a recess on the pipe edge, for example. To form a so-called tulip shape, which is advantageous for welding the tube 24.
- a base body 6k of the grinding tool 1k is the surface area 3k forms for peripheral grinding, has been provided with a particularly wear-resistant abrasive and a particularly seal-resistant binder has been selected.
- a sanding pad 7k has been selected which can achieve a relatively larger removal. It may have 6k larger abrasive grains compared to the main body.
- the abrasive grains of the abrasive pad 7k may be comparatively less bound in binder and thereby more freely on the surface to cause a larger erosion. Due to the lower stress, the binder of the grinding pad 7k can be provided less resistant to wear and therefore be less expensive.
- the grinding and cutting tools 1j ', 1j “shown in cross-section in the cross-section are particularly suitable, and the grinding and cutting tools 1j' of Figure 26 26 has a synthetic resin-bonded cutting disk as the main body 6j ".
- the main body 6j ', 6j" has a cup-shaped inner section into which an abrasive body 7j' A disc 48, 48 'is arranged as a spacer between the base body 6j', 6j "and the grinding body 7j ', 7j"
- spacer discs 48, 48' of different thickness the position of the disc can be adjusted
- Abrasive body 7j ', 7j "in relation to the base body 6j', 6j" changed.
- a grinding and cutting tool 1 m which is shown in FIG. 14, differs from the abovementioned grinding and / or cutting tools in particular in that its edge has both two surface regions 3m, 3m 'for circumferential grinding and a surface region 3m "
- the surface areas 3m, 3m ' are, as explained above for the other grinding and / or separating tools, each formed on a basic body 6m, 6m', which have a combination of substances of an abrasive-added binder
- Base bodies 6m, 6m ' is also a separating disc 6m "formed from a combination of binder and abrasive material arranged, which has a larger diameter than the base body 6m, 6m' and therefore protrudes outward.
- An advantageous application of the grinding and cutting tool 1 m is that a workpiece can first be separated by means of the surface region 3m "and then an edge formed by the separation process directly by circumferential grinding by means of the surface regions 3m, 3m 'or the surface regions 2m 2m 'for side grinding, such an application is particularly suitable for machining pipes.
- Fig. 25 shows another inventive grinding tool 1z, the one
- Base 6z shows that has a conical shape. On a lateral surface of the main body 6z rising steps are formed in the circumferential direction. On each of the steps a sanding pad 7z is glued. At a lower edge of the
- Base 6z is a circumferential ridge 2z formed, the lower side than
- Grinding surface can be used for side grinding.
- the base body 6z of FIG. 25 instead of a conical cylindrical shape.
- Grinding tool the same outer shape as the grinding tool 1 z of FIG. 25 or has a cylindrical shape, but is provided with a carrier body which carries the grinding layers 7z and releasably connected to a base body to which the carrier body can be attached.
- the main body is formed from such a material and shaped such that its lower side as a grinding surface for
- the surface areas of the grinding and / or cutting tools described above may differ in their removal properties, in particular in that they have different material properties.
- the different material properties can be provided by the fact that the surface areas have different abrasives.
- the abrasives may differ from the materials of the abrasive grains, eg corundum, quartz, pumice, diamond, silicon carbide and / or cubic boron nitride.
- the surface areas may be different abrasive grain shapes and sizes, grain scatters, grain sizes, hardnesses, microstructures, porosity, reinforcing materials (fibers, especially glass or carbon fibers), Victoriaermaferialien and / or binders differ.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017122331.2A DE102017122331A1 (de) | 2017-09-26 | 2017-09-26 | Schleif- und/oder Trennwerkzeug und Verfahren zum Schleifen und/oder Trennen |
| PCT/DE2018/100814 WO2019063044A1 (de) | 2017-09-26 | 2018-09-26 | Schleif- und/oder trennwerkzeug und verfahren zum schleifen und/oder trennen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3687733A1 true EP3687733A1 (de) | 2020-08-05 |
Family
ID=63833749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18785502.8A Pending EP3687733A1 (de) | 2017-09-26 | 2018-09-26 | Schleif- und/oder trennwerkzeug und verfahren zum schleifen und/oder trennen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20200269389A1 (de) |
| EP (1) | EP3687733A1 (de) |
| DE (2) | DE102017122331A1 (de) |
| WO (1) | WO2019063044A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT518908B1 (de) * | 2016-08-11 | 2019-04-15 | Tyrolit Schleifmittelwerke Swarovski Kg | Trägerkörper für Schleifwerkzeuge |
| KR102296729B1 (ko) * | 2021-06-03 | 2021-08-31 | 빈인선 | 밀착 효율이 높은 전동연마기 탈부착용 연마디스크 |
| USD1010415S1 (en) * | 2021-10-27 | 2024-01-09 | Mirka Ltd | Backing pad for sander |
| USD1029602S1 (en) * | 2022-01-04 | 2024-06-04 | Noritake Co., Limited | Polishing pad dresser |
| USD1002319S1 (en) * | 2022-08-31 | 2023-10-24 | Procut Tool, Inc. | Diamond saw blade |
| CN117359488A (zh) * | 2023-10-17 | 2024-01-09 | 广东豪特曼机床股份有限公司 | 一种用于周边磨床的装夹行程控制装置及控制方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1139817A (en) * | 1913-07-02 | 1915-05-18 | James C Smith | Abrasive implement. |
| US1269653A (en) * | 1915-09-03 | 1918-06-18 | James C Smith | Cutting and abrasive implement. |
| US20050268898A1 (en) * | 2004-06-08 | 2005-12-08 | Bishop Ralph C | Tiers of kerf engaging elements |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4267814A (en) * | 1979-12-06 | 1981-05-19 | Federal-Mogul Corporation | Abrasive saw blade for trapezoidal grooving |
| US4407263A (en) * | 1981-03-27 | 1983-10-04 | Diamond Giken Co., Ltd. | Cutting blade |
| DE3248627C2 (de) * | 1982-12-30 | 1986-08-07 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Als Maschinentisch dienende Werkbank |
| DE3830819A1 (de) * | 1988-08-27 | 1990-03-01 | Winter & Sohn Ernst | Saege |
| JPH059861U (ja) * | 1991-04-09 | 1993-02-09 | 株式会社エフエスケー | 溝研削用超砥粒砥石 |
| US5496209A (en) * | 1993-12-28 | 1996-03-05 | Gaebe; Jonathan P. | Blade grinding wheel |
| US5529528A (en) * | 1994-08-26 | 1996-06-25 | Vaporless Manufacturing, Inc. | Saw blade with sanding surface |
| US6280309B1 (en) * | 1995-10-19 | 2001-08-28 | Norton Company | Accessories and attachments for angle grinder |
| DE59900433D1 (de) * | 1998-02-13 | 2001-12-20 | Boettcher Gmbh & Co Felix | Rubber hog scheibe |
| US6203416B1 (en) * | 1998-09-10 | 2001-03-20 | Atock Co., Ltd. | Outer-diameter blade, inner-diameter blade, core drill and processing machines using same ones |
| CZ9904743A3 (cs) * | 1998-12-29 | 2001-09-12 | Klingspor Gmbh | Rotační kotouč pro opracovávání povrchových ploch materiálu |
| DE29920124U1 (de) * | 1999-11-16 | 2001-03-29 | Klingspor GmbH, 35708 Haiger | Verbrauchbare Rotationsscheibe zur Bearbeitung von Materialoberflächen mit einem Grundkörper aus spritzgegossenem Material, insbesondere Kunststoff |
| US6632131B1 (en) * | 2000-02-03 | 2003-10-14 | Terry L. Buchholz | Combination rotary cutting and sanding blade |
| DE10321629A1 (de) * | 2003-05-13 | 2004-12-02 | Robert Bosch Gmbh | Trennscheibe für Handwerkzeugmaschinen |
| DE202006001154U1 (de) * | 2006-01-24 | 2007-03-08 | Dronco Ag | Schleif- und/oder Trennscheibe sowie Vorrichtung zur Herstellung einer Schleif- und/oder Trennscheibe |
| DE202008008103U1 (de) * | 2008-06-17 | 2008-09-11 | Biedron, Ralf | Trennscheibe und Hartmetallscheibe mit Hartmetallsplittbestückung |
| DE102009030484A1 (de) * | 2009-06-24 | 2010-12-30 | Rhodius Schleifwerkzeuge Gmbh & Co. Kg | Segmenttrennschleifscheibe |
| RU2599067C2 (ru) * | 2011-11-09 | 2016-10-10 | 3М Инновейтив Пропертиз Компани | Композитный абразивный круг |
| CN203471060U (zh) * | 2013-08-05 | 2014-03-12 | 河南富耐克超硬材料股份有限公司 | 一种圆形超薄锯片 |
-
2017
- 2017-09-26 DE DE102017122331.2A patent/DE102017122331A1/de not_active Withdrawn
-
2018
- 2018-09-26 DE DE112018000285.3T patent/DE112018000285A5/de not_active Withdrawn
- 2018-09-26 US US16/647,812 patent/US20200269389A1/en active Pending
- 2018-09-26 EP EP18785502.8A patent/EP3687733A1/de active Pending
- 2018-09-26 WO PCT/DE2018/100814 patent/WO2019063044A1/de not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1139817A (en) * | 1913-07-02 | 1915-05-18 | James C Smith | Abrasive implement. |
| US1269653A (en) * | 1915-09-03 | 1918-06-18 | James C Smith | Cutting and abrasive implement. |
| US20050268898A1 (en) * | 2004-06-08 | 2005-12-08 | Bishop Ralph C | Tiers of kerf engaging elements |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2019063044A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019063044A1 (de) | 2019-04-04 |
| DE102017122331A1 (de) | 2019-03-28 |
| DE112018000285A5 (de) | 2019-10-10 |
| US20200269389A1 (en) | 2020-08-27 |
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