Grinding disc receptacle

Abstract

To provide a grinding disc receptacle.SOLUTION: The invention relates to a grinding disc receptacle. The grinding disc receptacle has a rotationally symmetrical, hollow cylindrical receptacle main body. A through-pipe, which is braced in particular in relation to the receptacle main body, is disposed in a cavity of the receptacle main body so as to be separate from a cylinder barrel of the (hollow cylindrical) receptacle main body.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a grinding disk receptacle.

Background Art

[0002] Grinding is one of the subtractive manufacturing methods and is generally known to be used in the fields of high-precision machining and final machining of workpieces.

[0003] Using conventional grinding methods, historically only relatively minor removal of material (e.g., in comparison to milling) could be achieved. As a result, progress has been made in the development of so-called high-performance milling in machine tools. Consequently, in some cases, compared to conventional grinding methods, material removal that is 100 to 1000 times greater can be achieved (see (Patent Document 1)).

[0004] What is used in the grinding process is either a grinding tool held or received within a grinding disk receptacle or, alternatively, a machine tool equipped only with a grinding disk, broadly speaking. In the past, special grinding machines have been used for this purpose, but the current grinding process is relatively frequently carried out on a milling machine, especially when machining particularly large and heavy workpieces. Flat surfaces that are located deep down and difficult to access can be machined in one chucking operation by such a milling machine. The requirement for this is a long and protruding grinding disk receptacle with high rigidity.

[0005] Such a grinding disk receptacle that receives a grinding disk is known, for example, from (Patent Document 1).

[0006] Such a grinding disc receptacle substantially comprises, in this case, a rotationally symmetric cylindrical receptacle main body, a grinding disc bearing at one end thereof, and at least one clamping flange, each of which a grinding tool or grinding disc is supported between the grinding disc bearing and the clamping flange.

[0007] The receptacle main body has an interface at the other end that establishes a connection between the grinding disc receptacle and the working / grinding spindle of the machine tool.

[0008] Aside from this, coolant can be guided from the working spindle proximity interface to the grinding disc bearing via an internal duct within the integrally configured receptacle main body.

[0009] Furthermore, the grinding disc receptacle described in (Patent Document 1) provides a damping element disposed inside the main body of the receptacle and intended to dampen vibrations generated by the grinding machining of the workpiece.

[0010] As described in (Patent Document 1), in the case of high-speed rotating components, such as those evident in machine tools used for high-performance grinding, potential mass imbalances within the machine tool system can actually cause very large vibrations within the machine tool system or on the grinding tool, which inevitably leads to inadequate grinding results when an attempt is made to remove material from a workpiece by using a grinding tool that vibrates in this manner. In the worst case, this can lead to damage or destruction of the tool system.

[0011] Furthermore, (Patent Document 1) demonstrates that vibrations of a magnitude that may occur in the field of high-performance grinding cannot be sufficiently damped by damping elements such as those provided in the aforementioned document. [Prior art documents] [Patent Documents]

[0012] [Patent Document 1] German Utility Model No. 202017000560 Specification [Overview of the Initiative] [Problems that the invention aims to solve]

[0013] The object of the present invention is to improve upon conventional grinding disc receptacles, and moreover, to realize a grinding disc receptacle that exhibits particularly aggressive damping behavior. [Means for solving the problem]

[0014] This objective is achieved by a grinding disc receptacle having the features of the independent claim.

[0015] Advantageous modifications of the present invention are the subject of the dependent claims and the following description.

[0016] Terms such as "top," "bottom," "front," "back," "left," or "right," as well as "inside" or "outside," which are potentially used, should be understood in their conventional sense unless explicitly defined otherwise. Terms such as "radial" and "axial" should be understood, to the extent used and not explicitly defined in a different manner, to relate to the central axis, axis of symmetry, or axis of rotation of the grinding disc receptacle described herein, or to its parts / components, respectively.

[0017] When used, the term “substantially” can be understood (according to the Supreme Court’s understanding) as “to a practically substantial extent.” Therefore, possible deviations from the precision thus implied by this term may occur unintentionally (i.e., without any functional basis) as a result of the tolerance of manufacture or assembly or similar.

[0018] The grinding disc receptacle has a rotationally symmetric, hollow cylindrical receptacle main body.

[0019] The through pipe is positioned within the cavity of the receptacle main body so as to be separated from the cylindrical barrel of the (hollow cylindrical) receptacle main body, and is positioned in such a way as to be supported in relation to the receptacle main body.

[0020] Specifically, the through pipe is arranged within the receptacle body in a rotationally symmetrical manner with respect to the receptacle body and in a coaxial manner with respect to the receptacle body (or, respectively, its central axis / axis of symmetry / axis of rotation).

[0021] Furthermore, it is particularly advantageous that the through-pipe is a coolant pipe, especially a sealed coolant pipe in relation to the cavity. As a result, each through-pipe or coolant pipe, as part of the coolant supply system, can guide coolant from one end of the receptacle main body (interface working spindle / grinding spindle) through the receptacle main body to the other end of the receptacle main body (grinding disc bearing / grinding disc).

[0022] The grinding disc receptacle according to the present invention integrates several advantageous effects as a result of the structure provided.

[0023] Therefore, the modular structure of the receptacle, which consists of a plurality of components such as the receptacle main body, the through-pipe disposed within the cavity of the receptacle main body, and the joints resulting therefrom, can be coupled to each other or are coupled to each other, has a damping effect. In this case, this is referred to as coupling damping. In this case, the energy is specifically dissipated at the joints or at the interfaces between the components respectively.

[0024] The hollow cylindrical receptacle main body, which is hollow inside and is further provided within the grinding disk receptacle, enables a significant reduction (about 40%) in the weight of the grinding disk receptacle (in comparison with conventional grinding disk receptacles).

[0025] The support of the (inner) through-pipe in relation to the receptacle main body, which can also potentially be provided within the grinding disk receptacle, is associated with a relatively high rigidity of the system.

[0026] In short, the grinding disk receptacle according to the present invention is characterized by a high degree of rigidity, low weight, and high damping effect.

[0027] According to one variant, a thread is provided at one end of the through-pipe. For example, a clamping shoulder can be provided that provides support with the receptacle main body, as arranged at the other end. It is particularly advantageous for the clamping shoulder to have a cone (with a predefined cone angle). This cone is supported on a clamping shoulder having a complementary cone.

[0028] Therefore, when the through-pipe can be screwed in a manner similar to a long screw in this way and the axial position of the through-pipe can be adjusted / set in this way, as a result, the support of the through-pipe can be set (in a stepless manner).

[0029] Such threads may be, for example, external threads provided on the through pipe (or internal threads provided on its upper surface). Complementary threads for threading into the through pipe may be provided on the receptacle main body itself, or on components such as holders or through pipe holders, respectively, or on inserts (components) disposed within the receptacle main body.

[0030] Furthermore, insulation can be provided at (or near) the threaded location to seal the interface between the through-pipe and the receptacle main body or component / through-pipe holder. The task of such sealing (and also of similar sealing on or around the through-pipe, as described later) is to prevent coolant from entering the cavity of the receptacle main body from the through-pipe, which acts as a coolant pipe.

[0031] Each component or through-pipe holder, which is required to be screwed to the through-pipe and is positioned on the receptacle main body, can be connected to the receptacle main body in a particularly rotatably fixed manner, for example, by pinning it to the receptacle main body (using pins). Furthermore, sealing between the components (see above) can also be provided.

[0032] Furthermore, according to one variation, for example, a coolant supply pipe that functions to supply coolant is connected to a through-pipe holder, particularly by screwing. It is also possible to provide sealing between components (see above), which can be advantageous.

[0033] As an alternative, a sleeve may be installed between the through-pipe and the through-pipe holder, particularly in a sealed manner (see above).

[0034] Here, it may be advantageous for the sleeve to be pushed axially into the receptacle bore within the through-pipe holder (only freely), because this method ensures free axial displacement of the component when the through-pipe is adjusted axially (see, for example, the setting of support via threading).

[0035] A clamping shoulder, provided on the other end of the through pipe and configured to be particularly conical according to one variation (as mentioned), is provided for support between it and the receptacle main body, or between it and another component, such as a grinding disc bearing, which is connected to the receptacle main body and supported on its upper part (by pressure fitting).

[0036] This means that the through pipe is supported on the receptacle main body (itself), on other components connected to the receptacle main body, or on a grinding disc bearing, in which case the other components or the grinding disc bearing are, for example, screwed or pinned to the receptacle main body, thereby enabling support of the through pipe in relation to the receptacle main body (directly, without intermediary, or indirectly).

[0037] It is possible to seal the interface / contact surfaces between components.

[0038] Furthermore, other components or tool grinding disc bearings that can be screwed to the receptacle main body can also be implemented to be integrated with the receptacle main body. Moreover, the grinding disc bearing can be composed of multiple parts.

[0039] It is preferable that the grinding disc bearing has at least one filler bore that is open into the cavity (of the hollow cylindrical receptacle main body) and can be closed in particular using a closing screw. Through each of these filler bores, damping material or damping material, such as foams, can be filled into the cavity, for example, aluminum foam, elastomer, and similar materials (these are also described in later stages).

[0040] Support of the through-pipe (in relation to the receptacle body) via a clamping shoulder on the through-pipe can be conveniently implemented via a corresponding cone (having a predefined cone angle) on the through-pipe, such as an external cone on the outer circumference of the through-pipe. The cone angle can vary over a wide range, for example, a very sharp cone with a cone angle of approximately 40° to 60°, or a very flat cone with a cone angle of approximately 5° to 20° can be implemented.

[0041] In this example, complementary counter shoulders / counter cones or gliding disc bearings on or on the receptacle main body are required to be provided in a convenient manner by the corresponding mechanism.

[0042] Furthermore, it is advantageous to provide a clamping flange for the grinding disc that can be screwed to the grinding disc bearing. As a result, the grinding disc can be supported (held) so as to be positioned between the grinding disc bearing and the clamping flange.

[0043] A coolant bore can be conveniently provided within the grinding disc bearing, extending axially through the grinding disc bearing, and through which coolant can be guided (axially) via the grinding disc bearing.

[0044] Furthermore, a coolant bore can be provided within the clamping flange, extending axially through the clamping flange and particularly capable of being closed using a closing screw.

[0045] Furthermore, a radial coolant through-bore extending from an axial coolant bore within the clamping flange to the outer circumference (outer surface) of the clamping flange can also be provided within the clamping flange. As a result, the coolant can be guided through the clamping flange to the grinding disc.

[0046] Furthermore, if the grinding disc itself has additional holes, the machine tool can be actively cooled as a result.

[0047] Furthermore, it is also possible to provide a specially sealed (see above) sleeve positioned on the interface between the through pipe and the clamping flange, in which case the sleeve can provide a sealed transfer of coolant from the through pipe to the clamping flange or through the interface on the clamping flange.

[0048] It is even more convenient for the bore for the balance screw to be located on the outer surface of the receptacle main body and / or grinding disc bearing so as to compensate for the imbalance in the system's mass. Alternatively, such a bore (for the balance screw) can be provided at another location on the grinding disc receptacle.

[0049] The damping of each grinding disc receptacle can be further increased in that at least one damping body or vibrating mass, and in particular multiple or numerous damping bodies or vibrating masses, are provided on each grinding disc receptacle.

[0050] In principle, such dampers on a grinding disc receptacle can be arbitrary in terms of shape and / or material and / or location, or can be variable over a wide range.

[0051] Therefore, when the receptacle main body is provided as a hollow cylindrical pipe according to the present invention, it is particularly, and preferably, advantageous for at least one damping body to be disposed within the cavity of the receptacle main body (or, instead, it may be on the external side of the receptacle main body).

[0052] Here, it may be preferable that at least one damping body be an annular disc or sleeve, particularly an annular disc or sleeve that is pressed into a cavity, held within it, press-fitted, and / or supported, in particular an annular disc or sleeve of a plastic material, a metal (optionally, a heavy metal, and therefore a metal having a significantly higher density than steel, such as tungsten), or a rubber material.

[0053] Furthermore, at least one damper may be held within the cavity of the receptacle main body, particularly by using a ring, particularly a rubber or plastic ring, to separate it from the cylindrical barrel and / or through pipe (of the receptacle main body), in which case the damper may be made of a heavy metal or plastic material.

[0054] Furthermore, it may be particularly advantageous to provide multiple, especially numerous, damping bodies arranged within the cavity.

[0055] As another variation, in this example, each of the damping bodies can be held axially separated using a sleeve, and in particular using a ring, especially a rubber or plastic ring, to form an annular disc that is held away from the cylindrical barrel (of the receptacle main body) or the through pipe.

[0056] Furthermore, each can be configured to form an annular disk ("laminated structure") in which multiple or numerous damping bodies directly support each other from above and below.

[0057] Furthermore, damping materials (as already mentioned), particularly elastomers or (aluminum) foams, can be incorporated within the cavity.

[0058] When mounted on a working / grinding spindle, it is convenient that the grinding disc receptacle provides an interface for the grinding spindle, such as an HSC or sharp cone. However, other non-standardized connectivity / interfaces can also be used. The interface can be integrated on one end of the receptacle main body, or it can be disposed as a separate component on the receptacle main body. The interface itself can also be implemented as an integral part or as multiple parts for its portion.

[0059] The descriptions provided above relating to advantageous embodiments of the present invention include, in some cases, a number of features that are reproduced together as a group in individual dependent claims. However, these features can also be considered individually in a convenient manner, or they can be combined to form other significant combinations.

[0060] Even when certain terms are used in the description and / or in the claims, in their respective cases, in the singular form or in combination with quantifiers, there is no intention to limit the scope of the invention to the singular form or individual quantifiers in terms of those terms. Furthermore, the terms “a” and “an” should not be interpreted as quantifiers, but as indefinite articles.

[0061] The above-described properties, features, and advantages of the present invention, as well as the manner in which they are realized, will become even clearer and more easily understood in connection with the following description of exemplary embodiments of the present invention, which will be described in more detail in connection with the drawings / figures (identical parts / components and functions have the same reference numerals in the drawings / figures).

[0062] The exemplary embodiments serve to illustrate the present invention and do not limit the invention to any combination of features, even in relation to the functional features described herein. Furthermore, for this purpose, suitable features of any exemplary embodiment may be explicitly considered on their own, removed from an exemplary embodiment, incorporated within another exemplary embodiment to complement another exemplary embodiment, and / or combined with any of the claims.

[0063] The drawings are as follows: [Brief explanation of the drawing]

[0064] [Figure 1] A grinding disk receptacle according to one embodiment of the present invention is shown. [Figure 1a] Figure 1 shows a fragment of a grinding disc receptacle according to an embodiment of the present invention, which has a grinding disc bearing screwed into the receptacle main body. [Figure 2] A grinding disc receptacle according to one embodiment of the present invention is shown. [Figure 3]A grinding disc receptacle according to one embodiment of the present invention is shown. [Figure 4] A grinding disc receptacle according to one embodiment of the present invention is shown. [Figure 5] A grinding disc receptacle according to one embodiment of the present invention is shown. [Figure 6] A grinding disc receptacle according to one embodiment of the present invention is shown. [Figure 7] A grinding disc receptacle according to one embodiment of the present invention is shown. [Figure 8] A grinding disc receptacle according to one embodiment of the present invention is shown. [Modes for carrying out the invention]

[0065] -(Modular type) grinding disc receptacle (Figures 1-8) Figure 1 (which includes a single-piece diagram as shown in Figure 1a) shows modular or multi-part grinding disc receptacles 2, respectively.

[0066] This grinding disc receptacle 2 has a substantially rotationally symmetric hollow cylindrical receptacle main body 4 (having a cylindrical barrel 8).

[0067] The grinding disc bearing 36 is positioned on one end of the receptacle main body 4 so as to be screwed to the receptacle main body 4 using a screw 138 (see Figure 1a, which shows a section of the cover adjacent to the grinding disc receptacle 2 in a different (longitudinal) section, showing the grinding disc bearing 36 and the screw-in 136 of the receptacle main body 4). As shown in Figure 1, the grinding disc 48 is supported (held) between the grinding disc bearing 36 and the clamping flange 46 so as to be positioned on or in pressure contact with the grinding disc bearing 36.

[0068] The cover 90 is bolted to the clamping flange 46 (92), in which case the cover 90 covers the coolant bore 54 which extends axially 14 through the clamping flange 46 at its center.

[0069] Furthermore, as shown in Figure 1, the clamping flange 46 provides a radially extending coolant bore 50 that extends outward in the radial direction 16 from the coolant bore 54 of the central axis 14 to the outer side portion 114 of the clamping flange 46.

[0070] On the cover side, the coolant bore 54, which extends axially 14 through the clamping flange 46, is closed using a closing screw 52.

[0071] The support of the grinding disc 48 between the clamping flange 46 and the grinding disc bearing 36 is achieved by threading the clamping flange 46 and the grinding disc bearing 36 using a long screw 94, in which case the long screw 94 extends through a through bore 96 in the clamping flange 46 into the threads 98 in a bore 40, which is a so-called filler bore 40 (see below for this purpose) in the grinding disc bearing 36 (and is therefore threaded therein).

[0072] For example, damping materials such as elastomer or (aluminum) foam 80 (shown as optional) can be filled into the cavity 6 of the (hollow cylindrical) receptacle main body through these filler bores 40, and these filler bores 40 can be closed using closing screws 38, as also shown in Figure 1.

[0073] Furthermore, as shown in Figure 1, different bores 60 for balance screws (62, not shown), particularly threaded bores, are incorporated on the outer circumferential surface 64 of the receptacle main body 4 and the grinding disc bearing 36.

[0074] The through pipe 10, in this case the coolant pipe 10, is arranged within the hollow cylindrical receptacle main body 4 so as to be coaxial with the receptacle main body 4 (in terms of the central axis / axis of symmetry / axis of rotation 12), and in this case the through pipe 10 close to the cover is held (supported) within the through bore 100 in the grinding disc bearing 36 so as to be sealed by the annular seal 66 (in relation to the grinding disc bearing) (see below for details).

[0075] As shown in Figure 1, the coolant pipe 10 has a predefined conical angle 44, for example about 50°, at its end near the cover, and provides a conical clamping shoulder 34 that is supported in relation to a complementary clamping shoulder 88 within the through-bore 100 of the grinding disc bearing 36 (forming an outer cone 42).

[0076] Furthermore, the support of the coolant pipe 10 and the grinding disc bearing 36 has the effect of the grinding disc bearing 36, which is bolted (138) to the receptacle main body 4 via the flange 102, being supported by being in pressure contact with or positioned above the cover-proximity end 104 of the receptacle main body 4, or being pulled in pressure contact with the cover-proximity end 104 of the receptacle main body 4. Thus, the coolant pipe 10 is ultimately supported in relation to the receptacle main body 4, which imparts a great degree of rigidity to the system.

[0077] The annular seal 140 seals the contact area between the grinding disc receptacle 36 and the receptacle main body 4.

[0078] The clamping force (or application thereof) for supporting the coolant pipe 10 and the grinding disc bearing 36, or the coolant pipe 10 and the receptacle main body 4, respectively, is generated by utilizing the threaded portion 20 at the other end of the coolant pipe 10.

[0079] To this end, the coolant pipe 10 engages with an internal thread 86 of a through-pipe holder 22, which is rotatably fixed to the receptacle main body 4 (see below for details) at its other end, thereby providing an external thread 18 that allows the coolant pipe 10 to be screwed (screwed in 20) into the through-pipe holder 22, and more specifically into the through-bore 116 through the through-pipe holder 22 (at its upper part adjacent to the cover). The axial movement of the threads determines the pre-pressure (in a stepless manner).

[0080] Furthermore, the seal 66 (in the form of an annular seal 66) between the coolant pipe 10 and the through pipe holder 22 is provided within the threaded area between the coolant pipe 10 and the through pipe holder 22.

[0081] As shown in Figure 1, a sleeve 58 is further inserted into the coolant pipe 10 near the cover at the interface 56 between the coolant pipe 10 and the clamping flange 22, which is located inside the grinding disc bearing 36 (the sleeve 58 is also sealed in relation to the coolant pipe 10 (66)), and in this case the other end of the sleeve 58 is received in the axial coolant bore 54 of the clamping flange 46 (and is also sealed therein 66).

[0082] As shown in Figure 1, within the coolant pipe 10, the sleeve 30 is further inserted into the coolant pipe 10 up to the detent 110 at the end not facing the cover-proximity end (and the sleeve 30 is sealed in relation to the coolant pipe (10) (32)). In this case, the other end of the sleeve 30 is inserted into the through-bore 116 through the through-pipe holder 22, but is free in the axial direction to ensure maximum axial screw movement. In this case, a seal 32 is provided between the sleeve 30 and the through-pipe holder 22.

[0083] Furthermore, as shown in Figure 1, the through-pipe holder 22 is supported on a (counter) shoulder 108 inside the receptacle main body 4 via a shoulder 106 positioned at its upper part. A pin 24 prevents twisting of the through-pipe holder 22.

[0084] Figure 1 further shows that the coolant supply pipe 26, located on the end of the through-pipe holder 22 that does not face the cover-proximity end, is connected to the through-pipe holder (in a sealed manner 32) by being screwed through the sleeve 112.

[0085] In this case, the interface 82, which is the HSC82, is disposed (integrally) on the receptacle main body 4 at the other end of the receptacle main body 4, which is the end closest to the grinding disc, and in this case, the interface 82 establishes a connection between the grinding disc receptacle 4 and the working spindle / grinding spindle (84, not shown) of the machine tool (see Figure 8). In this case, it is also highlighted that the interface 82, which is integrated with the receptacle main body 4, can be implemented by a separate component 82, which is optionally connected to the receptacle main body 4 in a manner that is rotatably fixed using a pin 136.

[0086] Coolant can be supplied to the grinding disc 48 via a coolant supply pipe 26, a through-bore 116 in a through-pipe holder 22, its upper sleeve 30 not facing the cover proximity side, the coolant pipe 10, the cover proximity sleeve 58, and a clamping flange 46 having an axial through-bore / coolant bore 54 and a radial coolant bore 50. Holes (not apparent) in the grinding disc 48 can allow coolant to enter the grinding disc 48. The described seals (32, 66) in or on the components above the grinding disc receptacle 4 prevent any entry of coolant into the cavity 6, respectively.

[0087] Alternatively, or in addition to this, coolant from the outside of the grinding disc 48 may also be guided through a radial bore (not shown) in the grinding disc bearing 36 and / or clamping flange 46.

[0088] Figures 2 to 8 show modified and / or altered embodiments of the grinding disc receptacle 2 shown in Figure 1 and described above.

[0089] Since these embodiments of the grinding disc receptacle 2 (Figures 2-8) substantially correspond to the grinding disc receptacle 2 (described) in Figure 1, the repetition of descriptions of the same functionally equivalent components in the case of further grinding disc receptacle 2 in Figures 2-8 will be omitted in the following description. Hereafter, only the changes and modifications (of Figures 2-8) will be visualized.

[0090] Figure 2 shows a grinding disc receptacle 2 in a configuration in which its damping behavior is improved by an additional damping element 68.

[0091] As shown in Figure 2, a number of damping elements 68 in the form of annular disks 70 (arranged vertically to each other in a stacked configuration) are located inside the cylindrical barrel 8 of the receptacle main body 4.

[0092] These annular discs 70 are press-fitted coaxially between the receptacle main body 4 and the through pipe / coolant pipe 10 via their outer circumference 120 within the cylindrical barrel 8 of the receptacle main body 4, and extend substantially across the entire axial length 14 between the through pipe holder 22 and the grinding disc bearing 36 (within the cavity 6 within the receptacle main body 4).

[0093] The inner diameter 122 of the annular disc 70 substantially corresponds to the outer diameter 126 of the through-pipe holder 22, and allows for a radial distance 72 from the outer circumference 124 of the coolant pipe 10 (when the annular disc 70 is not seated on the through-pipe holder 22) (see Figure 2).

[0094] Figure 3 shows the grinding disc receptacle 2 in a configuration in which its damping behavior is improved by another further damping element 68.

[0095] As shown in Figure 3, the damping element 68 in the form of the sleeve 70 is located inside the cylindrical barrel 8 of the receptacle main body 4.

[0096] The sleeve 70 is press-fitted coaxially between the receptacle main body 4 and the through pipe / coolant pipe 10 via its outer circumference 120 within the cylindrical barrel 8 of the receptacle main body 4, and extends substantially across the entire length of the axial direction 14 between the through pipe holder 22 and the grinding disc bearing 36 (within the cavity 6 within the receptacle main body 4). The sleeve 70 can also be supported axially within the cavity 6 of the receptacle main body 4 using the grinding disc bearing 36.

[0097] The wall thickness 128 of the sleeve 70 is configured to be thin so as to form a radial distance 72 from the outer circumference 124 of the coolant pipe 10.

[0098] Figure 4 shows the grinding disc receptacle 2 in a configuration in which, even in this case, the grinding disc receptacle 2 is improved by other further damping elements 68 in terms of its damping behavior.

[0099] As shown in Figure 4, the two damping elements 68 in the form of an annular disk 70 are located inside the cylindrical barrel 8 of the receptacle main body 4.

[0100] These annular discs 70 are held coaxially within the cylindrical barrel 8 of the receptacle main body 4 and the through pipe / coolant pipe 10 via (rubber) rings 74 disposed on the outer circumference 120 of the annular discs 70 at a radial spacing 72, and are particularly held on the end of the receptacle main body 4 near the grinding disc bearing (in the axial direction 14) with a mutual axial spacing 78.

[0101] Therefore, if the inner diameter 122 of the annular disc 70 is greater than the outer diameter 126 of the through pipe 10, the annular disc 70 also allows for a radial distance 72 from the outer circumference 124 of the coolant pipe 10.

[0102] Figure 5 shows the grinding disc receptacle 2 in this case, in which the grinding disc receptacle 2 is improved by an additional damping element 68 in terms of its damping behavior.

[0103] As shown in Figure 5, in this case as well, the damping element 68 in the form of a sleeve-shaped body 70, which is simply referred to as the sleeve 70, is located inside the cylindrical barrel 8 of the receptacle main body 4.

[0104] The sleeve 70 is held coaxially within the cylindrical barrel 8 of the receptacle main body 4 and the through pipe / coolant pipe 10 via (rubber) rings 74 disposed at two axially separated locations on the outer circumference 120 of the sleeve 70 at a radial distance 72.

[0105] The inner diameter 122 of the sleeve 70 is slightly larger than the outer diameter 126 of the through pipe 10, and as a result, the sleeve 70 can be pressed against the coolant pipe 10.

[0106] The sleeve 70 extends axially along its entire axial length between the through pipe holder 22 and the grinding disc bearing 36, but at both ends, in each case, there can be clearance in relation to the through pipe holder 22 and the grinding disc bearing 36.

[0107] Figure 6 shows the grinding disc receptacle 2 in a configuration in which its damping behavior is improved by two additional damping elements 68 in this case.

[0108] As shown in Figure 6, in this case, the two damping elements 68 in the form of an annular disk 70 are located inside the cylindrical barrel 8 of the receptacle main body 4.

[0109] These annular discs 70 are held on the coolant pipe 10 in a coaxial manner between the receptacle main body 4 and the through pipe / coolant pipe 10 via (rubber) rings 74 disposed on the inner circumference 130 of the annular discs 70 at radial intervals 72.

[0110] Therefore, if the outer diameter 132 of the annular disk 70 is smaller than the inner diameter 134 of the receptacle main body 4 or the cylindrical barrel 8 of the receptacle main body 4, the annular disk 70 also allows for a radial distance 72 from the receptacle main body 4.

[0111] The two annular discs 70 are held in place axially in fixed positions (through an axial gap 78) using sleeves 76 disposed between and adjacent to the annular discs 70, and are pressed against or positioned above the coolant pipes between the through-pipe holder 22 and the grinding disc bearing 36.

[0112] Figure 7 shows, in this case, a grinding disc receptacle 2 having modified clamping contacts or clamping surfaces between the coolant pipe 10 and the receptacle main body 4 (direct support without the interposition of the through pipe 10 between them and the receptacle main body 4).

[0113] This means that the force flow of the support mechanism for the coolant pipe 10 into the receptacle main body 4 does not occur via the grinding disc bearing 36, but occurs directly from the coolant pipe 10 to the receptacle main body 4 without any intermediary.

[0114] As shown in Figure 7, the coolant pipe 10, for this purpose, provides a conical clamping shoulder 34 at its end near the cover, having a predefined conical angle 44 (forming a flat outer cone 42) of, for example, about 15°, in which case the clamping shoulder 34 is supported in relation to a complementary clamping shoulder 88 on the receptacle main body 4.

[0115] Accordingly, the sleeve 58 between the coolant pipe 10 on one side and the clamping flange 22 on the other side is guided through a bore 100 in the grinding disc bearing 36 and sealed there using a first seal 66, in which case the bore 100 is cylindrical and has no shoulders / cones. The sleeve 58 is also sealed in relation to the coolant pipe 10 using a second seal 66.

[0116] Figure 8 highlights that the interface 82, which is integrated with the receptacle main body 4 as described above, can also be implemented by a separate component 82.

[0117] As shown in Figure 8, a separate interface 82 is connected to the receptacle main body 4 by pin 136 in a rotatably fixed manner.

[0118] Therefore, if interface 82 is provided as a separate component, it is also possible to provide a through-pipe holder 22 integrally on the interface, which is an embodiment of interface 82 (not shown), and the receptacle main body 4, which is separable as a result of the separate interface 82, ensures sufficient accessibility, which is required for the manufacture and assembly of the grinding disc receptacle 2.

[0119] Although the present invention has been illustrated and described in relative detail above using preferred exemplary embodiments, the present invention is not limited to the examples disclosed, and other modifications can be derived therefrom without departing from the scope of protection of the present invention. [Explanation of Symbols]

[0120] List of reference symbols 2. Grinding disc receptacle 4 Receptacle Main Body 6 cavities 8. Cylindrical barrel 10 Through pipes, coolant pipes 12. Central axis / Axis of symmetry / Axis of rotation 14 Axial direction, axial direction 16 Radially, radially 18 (external) screw threads 20 Screw-in 22 Through pipe holder 24 pins, pinned 26 Coolant supply pipe 28. Screw fastening, screwing in 30 sleeves 32 Sealing 34 Clamping Shoulder 36 Grinding disc bearings 38 Closing screw 40 Filler Boar 42 (external) cone 44 Cone angles 46 Clamping flange 48 Grinding Discs 50 Radial coolant bore 52 Closing screw 54 Coolant bore (extending in the axial direction) 56 Interface (Through-pipe / Clamping flange) 58 sleeves 60 (for balance screws) bore 62 Balance screw (not shown in the illustration) 64 Outer surface 66 Sealing, insulation (coolant pipes), annular sealing 68 Damping element, damping / vibration mass 70 ring discs, sleeves 72 (radial) spacing, (radial) spacing 74 Rings 76 sleeves 78 (axial) spacing, (axial) separation 80 Damping materials, elastomers, (aluminum) foams 82 Interface, HSC, Sharp Cone 84. Grounding spindle (not shown in the diagram) 86 (for 18 / 20) internal threads 88 (Complementary) Clamping Shoulder 90 Cover 92 (Screw-in for cover) 94 long screws 96 (Through) Bore 98 threads 100 (Through bore in a ground bearing) 102 Flange 104 Receptacle main body cover, near end side 106 (on the through pipe holder) shoulder 108 (for 106) (counter) shoulder 110 detents 112 sleeves 114 External side 116 Through Bore 120 Outer circumference 122 (70) inner circumference 124 Outer circumference 126 (22 or 10) outer diameter 128 wall thickness 130 inner circumference 132 (70) outer diameter 134 (4 / 8) inner circumference 136 pins 138 screws 140 Ring-shaped seal

Claims

1. A grinding disk receptacle, comprising: A hollow cylindrical receptacle main body that is rotationally symmetric; A through pipe disposed within the cavity of the receptacle main body so as to be spaced apart from the cylindrical barrel of the receptacle main body, and in particular so as to be supported in relation to the receptacle main body; A grinding disk receptacle, characterized by the above.

2. The grinding disk receptacle according to claim 1, wherein the through pipe, which is particularly rotationally symmetric, is disposed within the receptacle body so as to be coaxial with the receptacle body.

3. The grinding disk receptacle according to claim 1 or 2, characterized in that an external thread, particularly a thread for screwing into a through pipe holder disposed within the receptacle main body, is disposed on one end of the through pipe on the through pipe.

4. The grinding disk receptacle according to claim 1 or 2, characterized by a through pipe holder disposed on the receptacle main body, particularly a through pipe holder connected to the receptacle main body in a rotationally fixed manner, and in particular fixed to the receptacle main body by a pin.

5. The grinding disk receptacle according to claim 1 or 2, characterized in that a coolant supply pipe is connected to the through pipe holder, particularly screwed, and / or a sleeve is disposed between the through pipe and the through pipe holder, particularly disposed so as to be sealed.

6. The grinding disk receptacle according to claim 1 or 2, characterized in that a clamping shoulder for support between the receptacle main body or connected to the receptacle main body and a grinding disk bearing is disposed on the other end of the through pipe.

7. The grinding disk receptacle according to claim 1 or 2, characterized by a grinding disk bearing in which the through pipe is supported in relation thereto and supported on the receptacle main body, particularly screwed (138) to the receptacle main body.

8. The grinding disk bearing is open into the cavity and has at least one filler bore which can be closed, in particular by using a closure screw. The grinding disk receptacle according to claim 1 or 2, characterized in that.

9. The clamping shoulder has an external cone. The grinding disk receptacle according to claim 1 or 2, characterized in that.

10. The grinding disk receptacle according to claim 1 or 2, characterized by a clamping flange which can be screwed to the grinding disk bearing for the grinding disk.

11. The grinding disk receptacle according to claim 1 or 2, characterized by a radial coolant through bore in the clamping flange and / or a coolant bore which extends axially through the clamping flange and which can be closed, in particular by using a closure screw.

12. The grinding disk receptacle according to claim 1 or 2, characterized by a sleeve which is arranged on the interface between the through pipe and the clamping flange and which is in particular sealed.

13. The grinding disk receptacle according to claim 1 or 2, characterized by a bore for balance screws on the outer peripheral surface of the receptacle main body and / or of the grinding disk bearing, in particular a threaded bore.

14. The grinding disk receptacle according to claim 1 or 2, characterized in that the through pipe is a coolant pipe, in particular a coolant pipe sealed in relation to the cavity.

15. The grinding disk receptacle according to claim 1 or 2, characterized by at least one damping body arranged in the cavity.

16. The grinding disk receptacle according to claim 1 or 2, characterized in that the at least one damping body is an annular disk or a sleeve, in particular an annular disk or a sleeve which is press-fitted into the cavity and / or supported therein, in particular an annular disk or a sleeve made of plastic material, metal or rubber.

17. The at least one damping body is held so as to be spaced apart from the cylindrical barrel and / or the through pipe, in particular by using a ring, in particular by using a rubber or plastic ring, and is in particular a damping body made of (heavy) metal or plastic material, characterized in that the grinding disk receptacle according to claim 1 or 2.

18. The grinding disk receptacle according to claim 1 or 2, characterized by a plurality of, in particular a large number of, damping bodies arranged in the cavity.

19. The grinding disk receptacle according to claim 1 or 2, characterized in that the plurality or the large number of damping bodies are held so as to be axially spaced apart by using a sleeve, in particular by using a ring, in particular by using a rubber or plastic ring, and are held so as to be spaced apart from the cylindrical barrel and / or the through pipe, and are annular disks.

20. The grinding disk receptacle according to claim 1 or 2, characterized in that a damping material, in particular an elastomer or (aluminum) foam, is incorporated in the cavity.

21. The grinding disk receptacle according to claim 1 or 2, characterized by an interface for a working spindle, in particular an HSC or a sharp cone, arranged on one end of the receptacle main body so as to be integrally connected to the receptacle main body or connected as a separate component.

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