Grinding and / or polishing pad arrangement, grinding and / or polishing machine, and method for producing grinding and / or polishing pad arrangement

Abstract

The invention relates to a grinding and / or polishing pad arrangement, a grinding and / or polishing machine and a method for producing a grinding and / or polishing pad arrangement. A grinding and / or polishing pad (48a; 48b) for a grinding and / or polishing machine (12a). 48b) for grinding and / or polishing the surface of the substrate (10a; 10b) comprises a drive interface unit (36a; 36b) for transferring the carrier unit (14a; 14b) is connected to a grinding and / or polishing machine (12a). According to the invention, the driver interface unit (36a; 36b) has a bent shape and / or the drive interface unit (36a; 36b) is designed in the form of a chain wheel.

Description

Technical Field

[0001] The present invention relates to a grinding and / or polishing pad apparatus, a grinding and / or polishing machine, and a method for manufacturing a grinding and / or polishing pad apparatus. Background Technology

[0002] A grinding-and / or polishing pad device for a grinding-and / or polishing machine has been proposed, which has a drive interface unit for connecting the carrier unit of the grinding-and / or polishing pad to the grinding-and / or polishing machine. Summary of the Invention

[0003] The present invention relates to a grinding and / or polishing pad device for a grinding and / or polishing machine, having a drive interface unit for connecting a carrier unit of the grinding and / or polishing pad to the grinding and / or polishing machine.

[0004] The present invention proposes that the drive interface unit has a bent shape and / or the drive interface unit is configured as a sprocket.

[0005] The configuration of the drive interface unit according to the invention enables a particularly space-saving structure for grinding and / or polishing pads. Grinding and / or polishing pads with particularly low heights can be achieved. Particularly advantageous guiding characteristics for the grinding and / or polishing pad device can be obtained. Advantageously, particularly high rigidity of the grinding and / or polishing pad can be achieved. A grinding and / or polishing pad device with particularly smooth operation and / or low vibration can be provided. Advantageously, grinding performance can be improved. User experience and / or user comfort can be improved. A particularly economical grinding and / or polishing pad device that simultaneously achieves particularly high performance can be provided.

[0006] The grinding and / or polishing pad assembly is, in particular, at least a part of the grinding and / or polishing pad. It is also conceivable that the grinding and / or polishing pad assembly comprises the entire polishing pad. It is also conceivable that the carrier unit is a part of the grinding and / or polishing pad assembly.

[0007] It is conceivable that the drive interface unit is formed integrally with the carrier unit or separately from the carrier unit. Here, "at least one unit and at least one other unit are at least partially integrally formed with each other" can be particularly understood as at least one element of the unit being integrally formed with at least one other element of the other unit. "Integral" can be understood at least as a material-fitting connection, for example by welding, brazing, bonding, injection molding, and / or other processes meaningful to those skilled in the art, and / or advantageously as one-piece molding, for example by casting and / or by single-component or multi-component injection molding, and advantageously manufactured from a single blank.

[0008] The carrier unit is specifically used to reinforce and / or stabilize the grinding and / or polishing pad. The carrier unit is preferably configured to carry the drive interface unit. The carrier unit is preferably constructed as a carrier for, in particular, the previously mentioned buffer unit and / or grinding media interface. Here, "configured" can be understood as specifically configured, specifically designed, and / or specifically equipped. Here, "an object configured for a specific function" can be understood as the object realizing and / or performing that specific function in at least one application and / or operating state. The carrier unit is preferably formed integrally. The carrier unit is particularly at least partially made of plastic, preferably of polyamide, for example, of PA6-GF30.

[0009] The grinding media interface preferably has a grinding media contact surface for grinding media and / or polishing media. The grinding media contact surface is preferably circular. Alternatively, it is conceivable that the grinding media contact surface is triangular, rectangular, or square, or has other shapes meaningful to those skilled in the art. The grinding media interface particularly has a grinding media fixing unit for securing the grinding media to the interface. For example, the grinding media fixing unit has a hook and loop fastener, an adhesive surface, a combination thereof, or the like for securing the grinding media and / or the polishing media. The grinding media fixing unit, particularly the hook and loop fastener and / or the adhesive surface, preferably forms at least a portion of the grinding media contact surface.

[0010] The grinding media interface, particularly the grinding media contact surface of the grinding media interface, preferably has a plurality of vent openings. The vent openings of the grinding media interface are at least partially configured as suction openings and / or at least partially configured as discharge openings. The vent openings of the grinding media interface have at least partially different shapes and / or sizes from each other. However, alternatively, it is also conceivable that the vent openings of the grinding media interface have the same shape and / or size. The grinding media or the polishing media preferably has vent openings corresponding to the suction openings of the grinding media interface.

[0011] The carrier unit preferably has at least one, preferably multiple, air channels extending laterally relative to the principal normal of the carrier unit on the machine side. The vent opening of the grinding media interface is fluidly connected to the at least one air channel. It is conceivable that multiple vent openings of the grinding media interface are connected to the air channels, for example, two, three, four, or more. Furthermore, it is conceivable that the grinding media interface has at least one vent opening that is not connected to the at least one laterally extending air channel. Here, "latently" can be understood specifically as different from parallel. Preferably, the air channels extend at least substantially perpendicular to the principal normal of the carrier unit. Preferably, the air channels extend at least substantially parallel to the principal extension plane of the carrier unit.

[0012] The carrier unit preferably has a vent opening corresponding to the vent opening of the grinding media interface, particularly arranged on the machining side. Here, "machining side" can be understood as the grinding media side or the grinding media interface side.

[0013] The grinding media is preferably constructed as sandpaper. The grinding media preferably has (particularly corresponding to the grinding media fixing unit) fixing units for fixing to the grinding and / or polishing pad, preferably to the grinding media interface, such as a hook and loop fastener and / or adhesive surface. The polishing media is preferably constructed as polishing paper. The polishing media preferably has (particularly corresponding to the grinding media fixing unit) fixing units for fixing to the grinding and / or polishing pad, preferably to the grinding media interface, such as a hook and loop fastener and / or adhesive surface. It is conceivable that the grinding media interface and / or the buffer unit is part of the grinding and / or polishing pad assembly, preferably the grinding and / or polishing pad itself. The buffer unit is preferably formed of foam material. The grinding media fixing unit is particularly arranged on the buffer unit. The grinding media fixing unit and the carrier unit are preferably arranged on the sides of the buffer unit facing away from each other, particularly the buffer unit is arranged between the carrier unit and the grinding media fixing unit.

[0014] The drive interface unit has a machine connection profile for connection to the drive element of the grinding and / or polishing machine. The drive interface unit has a plurality of, particularly evenly arranged, teeth on its outer periphery. The drive interface unit is particularly rotationally symmetrically formed, preferably relative to the drive shaft of the drive interface unit.

[0015] Preferably, the drive interface unit and / or the carrier unit, preferably the grinding and / or polishing pad device, can be driven to rotate around the drive shaft and / or can be driven to cause the drive shaft to perform an eccentric motion when connected to the grinding and / or polishing machine.

[0016] The grinding and / or polishing machine preferably has a drive unit, such as an electric motor, pneumatic actuator, etc., for driving the grinding and / or polishing pad, particularly the grinding and / or polishing pad assembly, when connected to the grinding and / or polishing machine. It is conceivable that the grinding and / or polishing mechanism results in an eccentric grinding machine, a rotary grinding machine, an oscillating grinding machine, etc. Preferably, the grinding and / or polishing machine is wireless, particularly constructed as a battery-powered grinding and / or polishing machine. Alternatively, it is conceivable that the grinding and / or polishing mechanism results in a wired or pneumatic grinding and / or polishing machine.

[0017] The grinding and / or polishing pad device is specifically configured for dust extraction. Here, "configured" can be understood as specifically programmed, designed, and / or equipped. Here, "an object configured for a specific function" can be understood as the object implementing and / or performing that specific function in at least one application and / or operating state.

[0018] Preferably, the air channel is configured as an air intake channel. Preferably, the grinding and / or polishing machine has an exhaust fan for extracting grinding and / or polishing dust, which is generated, in particular, during the processing of workpieces by the grinding and / or polishing machine, preferably via the at least one air channel. Alternatively, it is conceivable that the air channel is configured as an air intake channel for supplying fresh air to the grinding media interface, particularly via a vent opening of the grinding media interface configured as an exhaust opening. It is conceivable that an airflow for drawing in fresh air can be generated via the exhaust fan through the air channel.

[0019] The drive interface unit is preferably formed as a single piece. Alternatively, the drive interface unit can be multi-piece, such as a two-piece or three-piece design. The drive interface unit preferably has a base. The base preferably has the machine connection profile. The machine connection profile is preferably centrally located on the base, particularly in a direction viewed parallel to the drive shaft. The base particularly has the teeth.

[0020] The drive interface unit, particularly the base, preferably has a centrally located bend, preferably a centrally located protrusion, preferably viewed in a direction parallel to the drive shaft. The machine connection profile is particularly arranged on the bend. The bend, particularly in the radial direction, is preferably surrounded by the unbent portion of the drive interface unit, preferably the unbent portion of the base, relative to the drive shaft. The teeth are preferably arranged on the unbent portion of the drive interface unit, particularly the unbent portion of the base. The bend is preferably arranged on the machine side. Here, "machine side" can be understood as the side of the object facing the grinding and / or polishing machine when the grinding and / or polishing pad device is arranged on the grinding and / or polishing machine. The unbent portion is preferably arranged on the machining side.

[0021] Furthermore, it is suggested that the grinding and / or polishing pad device has the carrier unit, wherein the carrier unit is flush with the machine side of the contact surface of the drive interface unit, particularly the bent machine-side outer surface of the drive interface unit, for connection with the grinding and / or polishing machine. This allows for a grinding and / or polishing pad device that is particularly space-saving in terms of overall height. Advantageously, a particularly precise connection with the grinding and / or polishing machine can be achieved. A particularly reliable connection with the grinding and / or polishing machine can be achieved. The machine side of the carrier unit preferably faces away from the grinding media side of the carrier unit. The grinding media side is preferably the side of the carrier unit facing the grinding media interface with the grinding media interface arranged on the carrier unit. The contact surface extends, in particular, at least substantially perpendicular to the drive shaft. Here, "substantially perpendicular" can be understood as an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, particularly when viewed in the projection plane, form a 90° angle, and this angle has a maximum deviation of, in particular, less than 8°, advantageously less than 5°, and particularly advantageously less than 2°. The contact surface preferably abuts the machine connection profile. The machine connection profile is specifically used to transmit torque from the grinding and / or polishing machine to the grinding and / or polishing pad assembly. The contact surface is preferably used for directional and / or axial contact of the grinding and / or polishing pad assembly on the grinding and / or polishing machine.

[0022] Furthermore, it is suggested that the drive interface unit, particularly the substrate, has at least one vent opening, especially for dust extraction. A grinding and / or polishing pad device with particularly advantageous air guiding characteristics, particularly extraction characteristics, can be provided. A particularly lightweight drive interface unit can be provided. The vent opening, particularly when viewed radially, is preferably arranged between the drive shaft (preferably the machine connection profile) and the teeth. Preferably, the drive interface unit, particularly the substrate, has multiple vent openings. The vent openings of the drive interface unit preferably have a uniform and / or circular arrangement. Preferably, the vent openings of the drive interface unit are arranged symmetrically around the drive shaft. At least one vent opening of the drive interface unit is preferably arranged corresponding to a vent opening of the carrier unit and / or the grinding media interface. At least one vent opening of the drive interface unit is preferably part of the axial air guiding through-hole of the grinding and / or polishing pad device, particularly the grinding and / or polishing pad.

[0023] Furthermore, it is suggested that the grinding and / or polishing pad device has the carrier unit having at least one, particularly the previously mentioned, vent opening disposed between two adjacent teeth of the sprocket-like drive interface unit. This allows for particularly good suction characteristics while maintaining particularly high rigidity of the grinding and / or polishing pad device. Preferably, one vent opening of the carrier unit is disposed between each pair of teeth of the drive interface unit. The machine connection profile preferably surrounds the drive shaft. It is conceivable that at least a portion of the vent openings of the carrier unit are not disposed between the teeth of the drive interface unit.

[0024] Furthermore, it is suggested that the sprocket-shaped drive interface unit has a plurality of teeth, particularly those previously mentioned, which at least partially have different tooth heights from each other. Advantageously, a grinding and / or polishing pad device with particularly low weight can be achieved while simultaneously possessing particularly high stiffness characteristics. Preferably, the teeth have two different heights. Alternatively, it is conceivable that the teeth have more than two different heights. Furthermore, it is also conceivable that the teeth have the same height. Preferably, the teeth arranged behind at least one vent opening of the drive interface unit, viewed in the radial direction, have the same height. Preferably, the teeth arranged behind at least one vent opening of the drive interface unit, viewed in the radial direction, have a height different from (preferably less than) the height of the teeth arranged between two adjacent vent openings of the drive interface unit in the circumferential direction (which extends particularly in a plane perpendicular to the drive shaft).

[0025] Furthermore, it is suggested that the grinding and / or polishing pad device has the carrier unit, wherein the ratio of the maximum diameter of the drive interface unit to the maximum diameter of the carrier unit is at least 0.35. Advantageously, particularly high rigidity can be achieved. Advantageously, particularly advantageous performance characteristics can be achieved when machining workpieces.

[0026] Furthermore, it is suggested that the ratio of the total height of the grinding-and / or polishing pad device (which extends particularly perpendicular to the main extension plane of the grinding-and / or polishing pad device) to the maximum diameter of the grinding-and / or polishing pad device (which extends particularly parallel to the main extension plane of the grinding-and / or polishing pad device) is at most 0.15. Advantageously, this allows for particularly advantageous performance characteristics when machining workpieces.

[0027] Furthermore, a grinding and / or polishing machine, particularly as previously mentioned, is proposed, which has a grinding and / or polishing pad device according to the invention. A grinding and / or polishing machine with a particularly small height can be provided. A grinding and / or polishing machine with particularly advantageous usage characteristics can be provided.

[0028] Furthermore, the present invention relates to a method for manufacturing grinding and / or polishing pad devices, particularly grinding and / or polishing pad devices according to the present invention. It is proposed to at least partially integrate, in particular the previously mentioned drive interface unit having a bent shape and / or sprocket-like formation, into, in particular the previously mentioned carrier unit, and in particular to, at least partially be overmolded by said carrier unit. Advantageously, a particularly high rigidity and / or particularly space-saving structure can be achieved, preferably with respect to height.

[0029] Furthermore, it is recommended to grind the drive interface unit on the machine side, particularly to grind it flush with the adjacent carrier unit. Advantageously, this allows for a particularly precise fit when mounted on the grinding and / or polishing machine. Preferably, the mating surface of the drive interface unit and / or the surface of the carrier unit adjacent to the mating surface (particularly on the machine side) are ground, preferably so that the mating surface and the surface of the carrier unit adjacent to the mating surface are flush with each other.

[0030] Furthermore, it is suggested that, in one method step, the previously mentioned buffer unit be foamed onto the carrier unit on the processing side. Advantageously, a particularly precise fit can be achieved between the carrier unit and the buffer unit.

[0031] The grinding-and / or polishing pad apparatus, the grinding-and / or polishing machine, and / or the method of the present invention should not be limited to the applications and embodiments described above. In particular, the grinding-and / or polishing pad apparatus, the grinding-and / or polishing machine, and / or the method of the present invention may have a number different from the number of individual elements, components, and units, and method steps mentioned herein, in order to achieve the functions described herein. Furthermore, values ​​within the numerical range disclosed herein should also be considered disclosed and can be used arbitrarily. Attached Figure Description

[0032] Further advantages are illustrated in the following figures. Three embodiments are shown in the figures. The figures, description, and claims encompass combinations of numerous features. Those skilled in the art can appropriately contemplate these features individually and combine them into meaningful further combinations.

[0033] In the attached image:

[0034] Figure 1 A side view of a grinding-and / or polishing machine with grinding-and / or polishing pads is shown.

[0035] Figure 2 Show Figure 1 Perspective view of the grinding and / or polishing pad in the image.

[0036] Figure 3 Show Figure 1 Exploded view of the grinding and / or polishing pads in the image.

[0037] Figure 4 Show Figure 1 Lateral cross-sectional view of the grinding and / or polishing pad in the image.

[0038] Figure 5 A top perspective view of the carrier unit for grinding and / or polishing pads is shown.

[0039] Figure 6 Show Figure 5 The lower perspective view of the carrier unit in the middle.

[0040] Figure 7 A top view of the grinding and / or polishing pad (without cover unit) is shown.

[0041] Figure 8 A top view of the grinding and / or polishing pad (without a cover unit) is shown, with dashed lines indicating the drive interface unit partially integrated into the carrier unit.

[0042] Figure 9 A top view showing the grinding media interface of the grinding and / or polishing pad.

[0043] Figure 10A schematic diagram illustrating a method for manufacturing a grinding and / or polishing pad assembly is shown.

[0044] Figure 11 A top view of the grinding and / or polishing pad of the first alternative configuration is shown.

[0045] Figure 12 Show Figure 11 A top view of the grinding and / or polishing pad, with dashed lines indicating air passages.

[0046] Figure 13 Show Figure 11 and 12 A perspective view of a portion of the grinding and / or polishing pad.

[0047] Figure 14 A top view of the grinding and / or polishing pad of the second alternative configuration is shown.

[0048] Figure 15 Show Figure 14 Lateral cross-sectional view of the grinding and / or polishing pads. Detailed Implementation

[0049] Figure 1 A grinding and / or polishing machine 12a with a grinding and / or polishing pad assembly 10a is shown. The grinding and / or polishing pad assembly 10a corresponds to a grinding and / or polishing pad 48a. Alternatively, it can be envisioned that the grinding and / or polishing pad assembly 10a is merely a part of the grinding and / or polishing pad 48a, for example, having only a drive interface unit 36a or the like.

[0050] exist Figure 2 The grinding and / or polishing pad 48a, and particularly the grinding and / or polishing pad assembly 10a, are shown in the diagram. The grinding and / or polishing pad assembly 10a has a carrier unit 14a. The carrier unit 14a is configured to reinforce and / or stabilize the grinding and / or polishing pad 48a. The carrier unit 14a is integrally formed. The carrier unit 14a is at least partially made of plastic, preferably of polyamide, for example, of PA6-GF30.

[0051] The grinding and / or polishing pad device 10a has a sprocket-shaped drive interface unit 36a (see also) Figure 8The drive interface unit 36a is configured to connect the carrier unit 14a to the grinding and / or polishing machine 12a. The drive interface unit 36a and the carrier unit 14a are formed as a single piece. Here, "at least one unit and at least one other unit are formed as a single piece with each other at least partially" can be understood in particular as at least one element of the unit being formed as a single piece with at least one other element of the other unit. "Single piece" can be understood at least as a material fit connection, for example by fusion welding, brazing, bonding, injection molding and / or other processes meaningful to those skilled in the art, and / or advantageously as molding into a single piece, for example by casting and / or by single-component or multi-component injection molding processes, and advantageously manufactured from a single blank.

[0052] The drive interface unit 36a is at least partially integrated into the carrier unit 14a, and in particular, is at least partially encapsulated by the carrier unit 14a through injection molding. Alternatively, it is conceivable that the drive interface unit 36a is detachably fixed to the carrier unit 14a, for example, by screwing, riveting, etc. The carrier unit 14a is configured to support the drive interface unit 36a. The carrier unit 14a is preferably configured as a carrier for the buffer unit 34a and / or the grinding media interface 80a. The drive interface unit 36a is preferably constructed as a sintered part, a stamped part, or a deep-drawn part. However, it is also conceivable that the drive interface unit 36a is constructed as a die-cast part or a forged part.

[0053] The grinding and / or polishing pad 48a, and particularly the grinding and / or polishing pad device 10a, has the grinding media interface 80a. The grinding media interface 80a has a grinding media contact surface 88a for grinding media and / or polishing media (see...). Figure 9 The grinding media abutment surface 88a is circular. Alternatively, it is conceivable that the grinding media abutment surface 88a is triangular, rectangular, or square, or has other shapes that are meaningful to those skilled in the art. The grinding media interface 80a particularly has a grinding media fixing unit 90a for fixing the grinding media or polishing media onto the grinding media interface 80a. For example, the grinding media fixing unit 90a has a hook and loop surface, an adhesive surface, a combination thereof, or the like for fixing the grinding media and / or polishing media. The grinding media fixing unit 90a, particularly the hook and loop surface and / or the adhesive surface, forms at least a portion of the grinding media abutment surface 88a.

[0054] The grinding media interface 80a, particularly the grinding media contact surface 88a of the grinding media interface 80a, has multiple ventilation openings, especially the suction opening 92a. Figure 9Only one of the suction openings 92a is provided with reference numerals. The suction openings 92a have at least partially different shapes and / or sizes from each other. However, it is also conceivable that the suction openings 92a have the same shape and / or size. The grinding media or the polishing media has a venting opening that preferably corresponds to the suction opening 92a of the grinding media interface 80a.

[0055] The grinding medium is, for example, constructed as sandpaper. The grinding medium preferably has a fixing unit, particularly corresponding to the grinding medium fixing unit 90a, for fixing to the grinding and / or polishing pad 48a, preferably to the grinding medium interface 80a, such as a hook-and-loop fastener and / or adhesive surface. The polishing medium is, for example, constructed as polishing paper, a polishing sponge with polishing medium, etc. The polishing medium preferably has a fixing unit, particularly corresponding to the grinding medium fixing unit 90a, for fixing to the grinding and / or polishing pad 48a, preferably to the grinding medium interface 80a, such as a hook-and-loop fastener and / or adhesive surface.

[0056] The carrier unit 14a has at least a plurality of air channels 18a extending laterally relative to the principal normal 16a of the carrier unit 14a on the machine side. Here, "lateral" can be understood as different from parallel. The vent opening of the grinding media interface 80a is fluidly connected to the air channel 18a. It is conceivable that the plurality of vent openings of the grinding media interface 80a are fluidly connected to at least one of the air channels 18a, for example, two, three, four or more. Furthermore, it is conceivable that the grinding media interface 80a has at least one vent opening that is not connected to the laterally extending air channel 18a.

[0057] Here, "machine side" can be understood as the side of the object that faces the grinding and / or polishing pad device 10a, particularly the grinding and / or polishing pad 48a, when it is arranged on the grinding and / or polishing machine 12a. The machine side 94a of the carrier unit 14a faces away from the grinding media side 96a of the carrier unit 14a. The grinding media side 96a is the side of the carrier unit 14a facing the grinding media interface 80a when the grinding media interface 80a is arranged on the carrier unit 14a.

[0058] The carrier unit 14a has a principal extension plane 26a. A "principal extension plane" of a structural unit or element can be understood as a plane parallel to the largest side of a smallest imaginary cube that just completely surrounds the structural unit, and particularly passing through the center point of the cube. The principal normal 16a extends at least substantially perpendicular to the principal extension plane 26a of the carrier unit 14a. Here, "substantially perpendicular" can be understood as an orientation relative to a reference direction, wherein the direction and the reference direction, particularly when viewed in the projection plane, form a 90° angle, and this angle has a maximum deviation particularly less than 8°, advantageously less than 5°, and particularly advantageously less than 2°.

[0059] The main normal 16a extends at least substantially parallel to the drive shaft 98a of the drive interface unit 36a, and particularly preferably, the main normal 16a corresponds to the drive shaft 98a. The air channel 18a extends at least substantially perpendicular to the main normal 16a of the carrier unit 14a. The air channel 18a extends at least substantially parallel to the main extension plane 26a of the carrier unit 14a.

[0060] The drive interface unit 36a and / or the carrier unit 14a, preferably the grinding-and / or polishing pad device 10a, when connected to the grinding-and / or polishing machine 12a, can be driven to rotate about the drive shaft 98a and / or can be driven to cause the drive shaft 98a to perform an eccentric motion. In the case where the grinding-and / or polishing machine 12a is configured as an oscillating or rotary grinding machine, it is also conceivable that the grinding-and / or polishing pad device 10a performs only orbital or circular motion without rotation, for example, when the grinding-and / or polishing pad device 10a has a rectangular or square basic shape. Here, "substantially parallel" can be understood as the orientation of a direction relative to a reference direction, particularly in a plane, wherein the direction has a deviation of less than 8°, advantageously less than 5°, and particularly advantageously less than 2° relative to the reference direction.

[0061] The grinding and / or polishing pad 48a, and particularly the grinding and / or polishing pad device 10a, is configured to extract dust. Here, "configured" can be understood as specifically programmed, designed, and / or equipped. Here, "object configured for a specific function" can be understood as the object implementing and / or performing that function in at least one application and / or operating state. The air passage 18a is configured as an extraction air passage. The grinding and / or polishing machine 12a has an extraction fan for extracting grinding and / or polishing dust, which is particularly generated during the processing of workpieces by the grinding and / or polishing machine, and preferably extracted through the air passage 18a (not shown here).

[0062] The grinding and / or polishing machine 12a has a drive unit, such as an electric motor, pneumatic actuator, etc., for driving the grinding and / or polishing pad 48a, particularly the grinding and / or polishing pad assembly 10a, when connected to the grinding and / or polishing machine 12a (not shown here). It is conceivable that the grinding and / or polishing machine 12a is configured as an eccentric grinding machine, a rotary grinding machine, an oscillating grinding machine, or the like. The grinding and / or polishing machine 12a is wireless, particularly as a battery-powered grinding and / or polishing machine. Alternatively, it is conceivable that the grinding and / or polishing machine 12a is configured as a wired grinding and / or polishing machine.

[0063] The air passage 18a extends at least substantially radially relative to the principal normal 16a. The air passage 18a extends radially outward at least in a portion of the principal normal 16a. Viewed from the principal normal 16a, a portion of the air passage 18a has a curved orientation, such as a meandering orientation. Another portion of the air passage 18a has a straight orientation along its entire length.

[0064] The grinding and / or polishing pad device 10a has a cover unit 20a. The cover unit 20a is arranged on the carrier unit 14a on the machine side. The cover unit 20a at least partially, particularly on the machine side, limits and / or closes the air passage 18a.

[0065] The covering unit 20a is bonded to the carrier unit 14a. Alternatively, it is conceivable that the covering unit 20a is detachably fixed to the carrier unit 14a. Here, "detachable" can be understood as "can be separated without damage".

[0066] The cover unit 20a is configured to at least partially delimit the air passage 18a on the machine side. The main extending plane of the cover unit 20a (not shown here) is at least substantially parallel to the main extending plane 26a of the carrier unit 14a. The cover unit 20a is constructed in a disc shape and is preferably made of plastic, such as PVC, POM, PA, etc. The cover unit 20a may also be made of composite materials, such as a mixture of epoxy resin and fiberglass fabric.

[0067] The covering unit 20a has a plurality of grooves 22a. Figure 2 and Figure 3Only one of the grooves 22a is shown with reference numerals. The groove 22a defines a vent opening 24a for the air passage 18a on the machine side. The cross-section of the opening of the groove 22a extends at least substantially parallel to the main extension plane 26a of the carrier unit 14a. The main extension plane 26a of the carrier unit 14a is at least substantially parallel to the main extension plane of the grinding media interface 80a (not shown here). The vent opening 24a is configured as a suction opening 46a for suctioning out grinding and / or polishing dust.

[0068] The carrier unit 14a has a plurality of rib structural elements 28a extending at least substantially radially relative to the main normal 16a on the processing side, particularly the radially straight rib structural elements 28a. Figure 6 Only two of the multiple rib structural elements 28a are shown in the figure.

[0069] Here, "processing side" can be understood as the grinding media side or the grinding media interface side. The grinding media side 96a or processing side 32a of the carrier unit 14a faces away from the machine side 94a of the carrier unit 14a. The processing side 32a corresponds to the grinding media side 96a.

[0070] The carrier unit 14a has a carrier substrate 100a. The rib structural element 28a is formed in one piece with the carrier substrate 100a, and preferably the carrier substrate 100a has the rib structural element 28a. The rib structural element 28a is constructed as a wall.

[0071] The rib structural element 28a forms the sidewall 30a of the air channel 18a. Every two rib structural elements 28a form one of the sidewalls 30a of the air channel 18a. The rib structural element 28a protrudes from the air channel 18a on the machined side 32a of the carrier unit 14a in a direction parallel to the principal normal 16a of the carrier unit 14a.

[0072] The grinding and / or polishing pad device 10a has a buffer unit 34a. The buffer unit 34a is foamed on the carrier unit 14a on the machining side relative to the carrier unit 14a. The buffer unit 34a is formed of foam material. The grinding media fixing unit 90a is arranged on the buffer unit 34a. The grinding media fixing unit 90a and the carrier unit 14a are arranged on the sides of the buffer unit 34a facing away from each other, particularly between the carrier unit 14a and the grinding media fixing unit 90a. The rib structural elements 28a, particularly the portions of each rib structural element 28a protruding relative to the air channel 18a, are foamed and covered by the buffer unit 34a. Before foaming, an adhesive or activator may be applied between the buffer unit 34a and the carrier unit 14a with the rib structural elements 28a to obtain particularly strong adhesion during foaming. The rib structure element 28a is configured for force transmission, particularly torque transmission, from the carrier unit 14a to the buffer unit 34a. The air channel 18a is foam-covered by the buffer unit 34a on the processing side.

[0073] The buffer unit 34a has a ventilated opening corresponding to the ventilated opening of the drive interface unit and / or the ventilated opening 38a of the carrier unit 14a.

[0074] The carrier unit 14a has multiple air vents 38a, each air vent being connected to one of the air channels 18a. Figure 7 Only one vent opening 38a is shown in the diagram. The vent opening 38a of the carrier unit 14a corresponds to the vent opening of the grinding media interface 80a. The drive interface unit 36a has a plurality of teeth on its outer periphery, particularly uniformly arranged teeth 40a. The drive interface unit 36a is formed rotationally symmetrically, preferably rotationally symmetrical about the drive shaft 98a. A vent opening 38a of the carrier unit 14a is arranged between every two adjacent teeth 40a of the drive interface unit 36a. The drive interface unit 36a has a machine connection profile 102a for connection to the drive element of the grinding and / or polishing machine 12a. The machine connection profile 102a surrounds the drive shaft 98a.

[0075] The drive interface unit 36a is integrally formed. Alternatively, it is conceivable that the drive interface unit 36a is multi-body, such as two-body or three-body. The drive interface unit 36a is exemplarily configured as a sintered component. Alternatively, it is conceivable that the drive interface unit 36a is configured as a sheet metal component. The drive interface unit 36a has a base 104a. The base 104a has the machine connection profile 102a. The machine connection profile 102a is centrally arranged on the base 104a, particularly in a direction viewed parallel to the drive shaft 98a. The base 104a particularly has the teeth 40a.

[0076] The drive interface unit 36a has a bend. Shape (see) Figure 4 The drive interface unit 36a, particularly the base 104a, has a centrally located bent portion 106a, preferably a centrally located protrusion, preferably viewed in a direction parallel to the drive shaft 98a. The machine connection profile 102a is arranged on the bent portion 106a. The bent portion 106a, preferably relative to the drive shaft 98a, is surrounded in the radial direction by the unbent portion 108a of the drive interface unit 36a and preferably the unbent portion 108a of the base 104a. The teeth 40a are arranged on the unbent portion 108a of the drive interface unit 36a, particularly the unbent portion 108a of the base 104a. The bent portion 106a is arranged on the machine side. The unbent portion 108a is arranged on the processing side.

[0077] The carrier unit 14a is flush with the machine side of the contact surface 50a of the drive interface unit 36a, particularly with the bent machine-side outer surface 52a of the drive interface unit 36a, for connection to the grinding and / or polishing machine 12a. The contact surface 50a extends at least substantially perpendicular to the drive shaft 98a.

[0078] The abutment surface 50a is adjacent to the machine connection profile 102a. The machine connection profile 102a is configured to transmit torque from the grinding and / or polishing machine 12a to the grinding and / or polishing pad device 10a. The abutment surface 50a is configured to orient and / or axially abut the grinding and / or polishing pad device 10a on the grinding and / or polishing machine 12a.

[0079] The drive interface unit 36a, particularly the base 104a, has multiple vent openings 54a, specifically for dust extraction. Alternatively, it is conceivable that the drive interface unit 36a has only one vent opening 54a. The vent opening 54a, when viewed radially, preferably relative to the drive shaft 98a, is arranged between the drive shaft 98a (preferably the machine connection profile 102a) and the tooth 40a. The vent openings 54a of the drive interface unit 36a have a uniform and / or circular arrangement, particularly around the drive shaft 98a. The vent openings 54a of the drive interface unit 36a are symmetrically arranged around the drive shaft 98a. Each vent opening 54a of the drive interface unit 36a is part of the axial air passage of the grinding-and / or polishing pad device 10a, particularly the grinding-and / or polishing pad 48a.

[0080] The teeth 40a have at least partially different tooth heights from each other. The teeth 40a have two different heights. Alternatively, it is conceivable that the teeth 40a have more than two different heights. Furthermore, it is also conceivable that the teeth 40a have the same height. The teeth 40a arranged behind the vent openings 54a of the drive interface unit 36a, viewed radially, have the same height. The teeth 40a arranged behind the vent openings 54a of the drive interface unit 36a, viewed radially, have a height different from (preferably less than) the height of the teeth 40a arranged between two adjacent vent openings 54a of the drive interface unit 36a in the circumferential direction (which extends particularly in a plane perpendicular to the drive shaft 98a).

[0081] The ratio of the total height 64a of the grinding and / or polishing pad device 10a (which extends particularly perpendicular to the main extension plane 66a of the grinding and / or polishing pad device 10a) to the maximum diameter 68a of the grinding and / or polishing pad device 10a (which extends particularly parallel to the main extension plane 66a of the grinding and / or polishing pad device 10a) is at most 0.15.

[0082] The ratio of the maximum diameter 62a of the drive interface unit 36a to the maximum diameter 60a of the carrier unit 14a is at least 0.35.

[0083] Figure 10 A schematic diagram of a method for manufacturing a grinding and / or polishing pad device 10a is shown. In one method step, particularly in injection molding step 70a, an air channel 18a extending laterally relative to the main normal 16a is created in carrier unit 14a.

[0084] In one method step, particularly in injection molding step 70a, the drive interface unit 36a is at least partially integrated into the carrier unit 14a. In injection molding step 70a, the drive interface unit 36a, having a bent shape and / or a sprocket-like formation, is at least partially integrated into the carrier unit 14a, and is particularly at least partially encapsulated by the carrier unit 14a during injection molding.

[0085] In one process step, particularly in foaming step 72a, the buffer unit 34a is foamed onto the carrier unit 14a on the processing side. Specifically, the grinding media interface 80a and the drive interface unit 36a are placed into an injection mold, particularly together with the sleeve 56a and the disc spring 58a. Preferably, the buffer unit 34a is formed of foam material.

[0086] The sleeve 56a and / or the disc spring 58a are part of the grinding and / or polishing pad 48a, and particularly part of the grinding and / or polishing pad assembly 10a. The disc spring 58a is configured to establish an axial preload at the screw connection when mounted onto the grinding and / or polishing machine 12a. The sleeve 56a serves to integrate the disc spring 58a into the grinding and / or polishing pad 48a, and particularly into the grinding and / or polishing pad assembly 10a. The vent opening in the buffer unit 34a is created in a method step, particularly by a stamping process.

[0087] In one method step, particularly in grinding step 74a, the drive interface unit 36a is ground on the machine side, specifically to make it flush with the adjacent carrier unit 14a. The contact surface 50a of the drive interface unit 36a and / or the surface of the carrier unit 14a adjacent to the contact surface 50a (particularly on the machine side) are ground, preferably so that the contact surface 50a and the surface of the carrier unit 14a adjacent to the contact surface 50a are flush with each other.

[0088] Alternatively, in one method step, a suction opening may be created in the edge region on the side opposite to the grinding media interface 80a (see...). Figure 11 and Figure 12 (Inhalation opening 78b in the middle).

[0089] The grinding and / or polishing pad 48a, and particularly the grinding and / or polishing pad device 10a, has a weight between 120 grams and 140 grams, preferably 130 grams. However, it is also conceivable that the grinding and / or polishing pad 48a, and particularly the grinding and / or polishing pad device 10a, has a weight of less than 120 grams or greater than 140 grams.

[0090] The drive interface unit 36a here has, for example, a maximum diameter of 59 mm. The maximum diameter 68a of the grinding and / or polishing pad device 10a here is exemplarily 148 mm.

[0091] Figures 11 to 15 More embodiments are shown below. The following description and figures are primarily limited to the differences between embodiments. Regarding components with the same names, particularly those having the same reference numerals, reference may also be made in principle to the figures and / or descriptions of other embodiments, especially... Figures 1 to 10 To distinguish the embodiments, in Figures 1 to 10 The letter 'a' is appended to the reference numerals in the embodiments shown in the drawings. Figures 11 to 15 In one embodiment, the letter 'a' is replaced by the letters 'b' and 'c'.

[0092] Figure 11 A grinding-and / or polishing pad device 10b for a grinding-and / or polishing machine is shown. The grinding-and / or polishing pad device 10b corresponds to a grinding-and / or polishing pad 48b. The grinding-and / or polishing pad device 10b has a carrier unit 14b. The carrier unit 14b has a plurality of air channels 18b extending laterally relative to the main normal 16b of the carrier unit 14b on the machine side, particularly exhaust air channels (see...). Figure 12 ).

[0093] The grinding and / or polishing pad device 10b has a buffer unit 34b arranged on the carrier unit 14b. The end face 42b of the buffer unit 34b has recesses 44b spaced apart from each other in the circumferential direction, which are particularly different from the through openings (see...). Figure 13 ).

[0094] The recesses 44b on the end face 42b are uniformly arranged in the circumferential direction. The recesses 44b are spaced apart from each other in the circumferential direction. Each recess 44b has a varying maximum depth when viewed in the circumferential direction. The maximum depth is measured radially relative to the principal normal 16b. Alternatively, it can be envisioned that each recess 44b has a constant depth when viewed in the circumferential direction.

[0095] The recessed region defined by the recess 44b extends along the circumferential direction over at least 10%, preferably at least 50%, and preferably at least 75% of the maximum circumferential extension of the end face 42b in the circumferential direction.

[0096] The grinding and / or polishing pad 48b, and particularly the grinding and / or polishing pad device 10b, has a grinding media interface 80b. The grinding and / or polishing pad 48b, and particularly the grinding and / or polishing pad device 10b, has a plurality of suction openings 46b arranged on the side opposite to the grinding media interface 80b.

[0097] The grinding and / or polishing pad 48b, and in particular the grinding and / or polishing pad device 10b, has a plurality of intake openings 78b arranged in the edge region on the side opposite to the grinding media interface 80b and particularly different from the side 110b, for intake of ambient air. The intake openings 78b are arranged on the machine side.

[0098] The grinding and / or polishing pad 48b has an upper side (particularly the machine side). The grinding and / or polishing pad 48b has a lower side (particularly the machining side). The upper side is arranged opposite to the lower side. The suction opening 78b is arranged on the upper side, particularly on the machine side. The upper side corresponds to the machine side. The side surface 110b connects the upper and lower sides. The grinding media interface 80b, particularly the grinding media contact surface of the grinding media interface, forms the lower side.

[0099] The grinding and / or polishing pad 48b, particularly the grinding and / or polishing pad device 10b, has a cover unit 20b. The cover unit 20b is arranged on the carrier unit 14b on the machine side. The cover unit 20b has a groove 22b. The cover unit 20b has the suction opening 78b. A portion of the groove 22b forms the suction opening 78b. Another portion of the groove 22b forms the discharge opening 46b.

[0100] The cover unit 20b of the grinding and / or polishing pad 48b forms the upper side. The cover unit 20b is adhered to the carrier unit 14b. Alternatively, it is conceivable that the cover unit 20b is detachably fixed to the carrier unit 14b.

[0101] The main extending plane of the cover unit 20b is at least substantially parallel to the main extending plane of the carrier unit 14b. The cover unit 20b is formed in a disc shape and is preferably made of plastic. The main extending plane of the carrier unit 14b is at least substantially parallel to the main extending plane of the grinding media interface 80b.

[0102] Preferably, the grinding and / or polishing machine has a suction fan for suctioning out grinding and / or polishing dust, which is generated in particular by processing workpieces through the grinding and / or polishing machine, and is preferably suctioned out via the grinding and / or polishing pad 48b.

[0103] The intake opening 78b is configured to supply fresh air to the grinding media interface 80b. Fresh air can be drawn in via the intake opening 78b by the exhaust fan.

[0104] Each intake opening 78b has an opening cross-section that extends at least substantially parallel to the main extension plane (not shown here) of the grinding media interface 80b. The opening cross-section of the intake opening 78b extends at least substantially perpendicular to the drive shaft of the drive interface unit 36b of the grinding and / or polishing pad 48b. The main extension plane of the grinding media interface 80b corresponds to the main extension plane of the grinding media contact surface of the grinding media interface. The main extension plane of the grinding media interface 80b extends at least substantially perpendicular to the drive shaft.

[0105] The minimum distance between the suction opening 78b and the drive interface unit 36b is greater than the minimum distance between the suction opening 46b and the drive interface unit 36b. The minimum distance between the suction opening 78b and the drive interface unit 36b (particularly the drive shaft), and / or the minimum distance between the suction opening 46b and the drive interface unit 36b (particularly the drive shaft), is preferably measured in a plane perpendicular to the drive shaft and / or parallel to the main extension plane of the grinding media interface 80b.

[0106] The intake opening 78b has a circular arrangement. The intake opening 78b is arranged in a circular manner around the drive interface unit 36b, and in particular around the drive shaft. It is conceivable that the intake openings 78b have a constant distance from each other in the circumferential direction (which extends particularly in a plane perpendicular to the drive shaft), or that the spacing between the intake openings 78b varies in the circumferential direction.

[0107] The carrier unit 14b has a plurality of air passages 76b arranged on the machine side and extending laterally relative to the main normal 16b, wherein each air passage 76b is connected to an intake opening 78b. The cover unit 20b at least partially limits and / or closes the air passages 76b.

[0108] The air passage 76b is configured as an air intake passage for supplying fresh air to the grinding media interface 80b. It is conceivable that an airflow for drawing in fresh air can be generated via the exhaust fan through the air passage 76b. The air passage 76b extends at least substantially perpendicular to the main normal 16b. The air passage 76b extends at least substantially parallel to the main extension plane of the carrier unit 14b. The main normal 16b extends at least substantially perpendicular to the main extension plane of the carrier unit 14b. The main normal 16b extends at least substantially parallel to the drive shaft of the drive interface unit 36b.

[0109] The air passage 76b extends at least substantially radially relative to the drive interface unit 36b. The air passage 76b has a straight orientation along its entire length. Alternatively, it is conceivable that at least a portion of the air passage 76b extends radially outward relative to at least a partial section of the principal normal 16b. For example, it is conceivable that at least a portion of the air passage 76b has a curved orientation, such as a meandering orientation, when viewed from the principal normal 16b.

[0110] The grinding and / or polishing machine 12a has a housing component unit 82a, particularly a friction ring 84a. The housing component unit 82a, particularly the friction ring 84a, at least partially covers the suction opening 46b when the grinding and / or polishing pad 48b is arranged on the grinding and / or polishing machine 12a. The edge region, particularly the edge region including the suction opening 78b, extends outside the housing component unit 82a, especially when the grinding and / or polishing pad 48b is arranged on the grinding and / or polishing machine 12a.

[0111] The carrier unit 14b has a plurality of air channels 18b extending laterally relative to the principal normal 16b on the machine side. The air channels 18b are connected to the suction opening 46b. The air channels 18b are configured to suction air channels. At least a portion of the air channels 18b have a meandering orientation, particularly when viewed radially relative to the principal normal 16b.

[0112] Figure 14 A grinding-and / or polishing pad device 10c for a grinding-and / or polishing machine is shown. The grinding-and / or polishing pad device 10c corresponds to a grinding-and / or polishing pad 48c. The grinding-and / or polishing pad device 10c has a carrier unit 14c. The carrier unit 14c is constructed as a metal plate, such as a steel plate, aluminum plate, etc. The carrier unit 14c does not have an air channel that extends at least substantially laterally relative to the principal normal of the carrier unit 14c.

[0113] The grinding and / or polishing pad 48c, and particularly the grinding and / or polishing pad device 10c, has a grinding media interface 80c. The grinding and / or polishing pad 48c, and particularly the grinding and / or polishing pad device 10c, has a plurality of suction openings 46c arranged on the side opposite to the grinding media interface 80c.

[0114] The grinding and / or polishing pad 48c, and particularly the grinding and / or polishing pad device 10c, has a plurality of intake openings 78c arranged in an edge region on a side opposite to the grinding media interface 80c and particularly on a side different from the side 110c, for intake of ambient air. The carrier unit 14c has a plurality of grooves 22c. The carrier unit 14c has the intake openings 78c. A portion of the grooves 22c forms the intake openings 78c. Another portion of the grooves 22c forms the exhaust openings 46c.

[0115] Each intake opening 78c extends at least substantially parallel to the main extension plane 86c of the grinding media interface 80c (see...). Figure 15 ).

[0116] The grinding and / or polishing pad 48c, and particularly the grinding and / or polishing pad device 10c, has a buffer unit 34c. The buffer unit 34c has an axially extending air passage. The intake opening 78c is fluidly connected to the grinding media interface 80c, and particularly the exhaust opening of the grinding media interface 80c, via a portion of the axially extending air passage. The exhaust opening 46c is fluidly connected to the grinding media interface 80c, and particularly the exhaust opening of the grinding media interface 80c, via another portion of the axially extending air passage.

[0117] The grinding and / or polishing pad 48c has a drive interface unit 36c. The drive interface unit 36c is riveted to the carrier unit 14c. The buffer unit 34c is bonded to the carrier unit 14c on the machining side.

Claims

1. A grinding- and / or polishing pad arrangement (10a; 10b) for a grinding- and / or polishing pad (48a; 48b) of a grinding- and / or polishing machine (12), comprising a drive interface unit (36a; 36b) for connecting a carrier unit (14a; 14b) of the grinding- and / or polishing pad (48a; 48b) with the grinding- and / or polishing machine (12), characterized in that, The drive interface unit (36a; 36b) has a bent shape and / or the drive interface unit (36a; 36b) is configured sprocket-like.

2. The grinding- and / or polishing pad arrangement (10a; 10b) according to claim 1, characterized in that The carrier unit (14a; 14b), wherein the carrier unit (14a; 14b) abuts flush on the machine side with a bearing surface (50a) of the drive interface unit (36a; 36b), in particular with a bent machine-side outer surface (52a) of the drive interface unit (36a; 36b), for connecting to the grinding- and / or polishing machine (12).

3. The grinding- and / or polishing pad arrangement (10a; 10b) according to claim 1 or 2, characterized in that The drive interface unit (36a; 36b) has at least one gas-permeable opening (54a), in particular for dust extraction.

4. The grinding- and / or polishing pad arrangement (10a; 10b) according to any one of the preceding claims, characterized in that The carrier unit (14a; 14b) has at least one gas-permeable opening (38a) arranged between two adjacent teeth (40a) of the sprocket-like drive interface unit (36a; 36b).

5. The grinding- and / or polishing pad arrangement (10a; 10b) according to any one of the preceding claims, characterized in that The sprocket-like drive interface unit (36a; 36b) has a plurality of teeth (40a) which at least partially have different tooth heights from one another.

6. The grinding- and / or polishing pad device (10a; 10b) according to at least the preamble of claim 1, in particular according to claim 1, characterized in that The carrier unit (14a; 14b), wherein the ratio of the maximum diameter (62a) of the drive interface unit (36a; 36b) to the maximum diameter (60a) of the carrier unit (14a; 14b) is at least 0.

35.

7. The grinding- and / or polishing pad arrangement (10a; 10b) according to any one of the preceding claims, characterized in that The ratio of the overall height (64a) of the grinding- and / or polishing pad device (10a; 10b) to the maximum diameter (68a) of the grinding- and / or polishing pad device (10a; 10b) is at most 0.15, the overall height extending in particular perpendicular to the main extension plane (66a) of the grinding- and / or polishing pad device (10a; 10b), the maximum diameter extending in particular parallel to the main extension plane (66a) of the grinding- and / or polishing pad device (10a; 10b).

8. A grinding- and / or polishing machine (12a) comprising a grinding- and / or polishing pad device (10a; 10b) according to any one of the preceding claims.

9. A method for manufacturing a grinding- and / or polishing pad arrangement (10a; 10b), in particular according to any one of claims 1 to 7, characterized in that, The drive interface unit (36a; 36b) having a bent shape and / or being configured sprocket-like is at least partially incorporated into the carrier unit (14a; 14b), in particular is at least partially overmoulded by the carrier unit (14a; 14b).

10. The method of claim 9, wherein, The drive interface unit (36a; 36b) is ground on the machine side, in particular is made flush with the adjoining carrier unit (14a; 14b).

11. The method according to claim 9 or 10, characterized in that, In one method step, a cushion unit (34a; 34b) is foamed onto the carrier unit (14a; 14b) on the working side, and in particular in such a way that the rib structure elements (28a) of the carrier unit (14a; 14b) form side walls (30a) of the air channels (18a) of the carrier unit (14a; 14b).

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