Receptacle for rotating tool

Abstract

To provide a receptacle for a rotating tool.SOLUTION: The invention relates to a receptacle. The receptacle includes 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 receptacle for a rotary tool. [Background technology]

[0002] In the prior art, a large number of rotary tools are known which can be used in a corresponding manner in different machining processes, examples of which include cutter heads or side milling cutters (for milling), saw blades (for sawing) or abrasive discs (for grinding).

[0003] It is also known that grinding is one of the subtractive manufacturing methods, typically used in the field of precision machining and final machining of workpieces.

[0004] Because only relatively small removals of material could historically be achieved using conventional grinding methods (e.g., compared to milling), progress has been made in the development of so-called high performance milling in machine tools, which can produce material removals that are, in some instances, 100 to 1000 times greater than conventional grinding methods (see U.S. Patent No. 6,223,999).

[0005] The grinding process involves a machine tool equipped with a grinding tool, or alternatively, simply a grinding disc, held or received in a grinding disc receptacle. While special grinding machines were used for this purpose in the past, grinding processes are now more frequently carried out on milling machines, especially when large and heavy workpieces need to be machined. Even deep, difficult-to-access planes can be machined with a single chucking operation on such milling machines. A prerequisite for this is a highly rigid, long-protruding grinding disc receptacle.

[0006] Such a grinding disc receptacle for receiving a grinding disc is known, for example, from US Pat. No. 5,629,399.

[0007] Such a grinding disc receptacle essentially comprises in this case a rotationally symmetrical cylindrical receptacle main body, a grinding disc bearing at one end thereof and at least one clamping flange by means of which the grinding tool or grinding disc, respectively, is supported between the grinding disc bearing and the clamping flange.

[0008] The receptacle main body has an interface on its other end that establishes the connection between the grinding disc receptacle and the grinding spindle of the machine tool (typically the working spindle in the case of other (rotary) tools).

[0009] Coolant can be directed from the working spindle adjacent interface to the grinding disc bearing via an internal duct in the otherwise integral receptacle main body.

[0010] Furthermore, the grinding disc receptacle of the '661 patent provides a damping element disposed inside the receptacle main body and intended to damp vibrations generated by the grinding machining of the workpiece.

[0011] As described by the '691 patent (in the case of high performance grinding), particularly in the case of high speed rotating components such as those evident in the case of machine tools during high performance grinding or other machining processes, potential unbalanced masses within the machine tool system can indeed result in very large vibrations within the machine tool system or on the grinding tool, respectively, which will inevitably result in poor grinding results when an attempt is made to remove material from a workpiece using a grinding tool vibrating in this manner, and in the worst case this can result in damage or destruction of the tool system.

[0012] The '161 patent also demonstrates that vibrations of the magnitude that can occur in the field of high-performance grinding cannot be sufficiently damped by damping elements such as those provided in said document. [Prior art documents] [Patent documents]

[0013] [Patent Document 1] German Utility Model No. 202017000560 Summary of the Invention [Problem to be solved by the invention]

[0014] It is an object of the present invention to improve receptacles for rotary tools, such as cutter heads, saw blades, grinding discs, etc., known in the prior art, and further to realize grinding disc receptacles which exhibit a particularly positive damping behavior. [Means for solving the problem]

[0015] This object is achieved by a receptacle for a rotary tool having the features of the independent claims.

[0016] Advantageous variants of the invention are the subject of the dependent claims and of the following description.

[0017] Potentially used terms such as top, bottom, front, back, left, or right, as well as inside or outside, should be understood in their conventional sense unless expressly defined otherwise. Terms such as radial and axial, where used, and to the extent not expressly defined differently, should be understood as relating to the central axis or axis of symmetry or axis of rotation, respectively, of the receptacle described herein or to parts / components thereof.

[0018] The term "substantially," as used, can be understood (as understood by the Supreme Court) to mean "to a practically significant extent." Thus, possible deviations from the precision implied by this term may occur unintentionally (i.e., without any functional basis) due to manufacturing or assembly tolerances or the like.

[0019] The rotary tool may be, for example, a cutter head, a saw blade, an abrasive disc, a milling cutter, such as a side milling cutter, a drill bit, and the like.

[0020] The receptacle has a hollow cylindrical receptacle main body that is rotationally symmetrical.

[0021] The through pipe is disposed within the cavity of the (hollow cylindrical) receptacle main body so as to be spaced from the cylindrical barrel of the receptacle main body, and is particularly disposed so as to be supported relative to the receptacle main body.

[0022] Specifically, the through pipe is disposed within the receptacle body so as to be rotationally symmetrical with respect to the receptacle body and coaxial with respect to the receptacle body (or its central axis / axis of symmetry / axis of rotation, respectively).

[0023] It is also particularly advantageous if the through pipe is a coolant pipe, in particular a coolant pipe sealed in relation to the cavity, so that the through pipe or coolant pipe, respectively, as part of the coolant supply system, can conduct 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 (tool bearing / tool ​​(e.g. grinding disc bearing / grinding disc)).

[0024] The receptacle according to the present invention incorporates several advantageous effects as a result of its provided structure.

[0025] Therefore, the modular structure of the receptacle, which is composed of multiple components that can be or are coupled to each other, such as the receptacle main body and the through pipe arranged in the cavity of the receptacle main body and the coupling resulting therefrom, has a damping effect, which is referred to as coupling damping, in which energy is specifically dissipated at the coupling or at the interface between the components, respectively.

[0026] The hollow cylindrical receptacle main body provided within the receptacle, which is hollow on the inside, allows for a significant reduction in the weight of the receptacle (by about 40%) (compared to conventional receptacles).

[0027] The support of the (internal) through pipe relative to the receptacle main body, which can also potentially be provided within the receptacle, leads to a relatively high stiffness of the system.

[0028] In summary, the receptacle according to the invention is characterized by a high degree of stiffness, a low weight, and a high damping effect.

[0029] According to one variant, a screw thread is provided at one end of the through pipe. For example, a clamping shoulder can be provided at the other end, providing support with the receptacle main body. It is particularly advantageous for the clamping shoulder to have a cone (with a predefinable cone angle) that is supported on the clamping shoulder with a complementary cone.

[0030] Therefore, when the through pipe can be screwed in this way in a manner similar to a long screw, and in this way the axial position of the through pipe can be adjusted / set, as a result of which the support of the through pipe can be set (in a stepless manner).

[0031] Such a thread may be, for example, an external thread provided on the through pipe (or an internal thread provided on its upper portion). A complementary thread for screwing onto the through pipe may be provided on the receptacle main body itself, or on a component such as a holder or through pipe holder, respectively, or on an insert (component) disposed within the receptacle main body.

[0032] Also, insulation may be provided at (or near) the threading location to seal the interface between the through pipe and the receptacle main body or component / through pipe holder, respectively. The task of such a seal (and of similar seals on or around the through pipe, as described below) is to prevent ingress of coolant from the through pipe as a coolant pipe into the cavity of the receptacle main body.

[0033] This component or through pipe holder, which must be screwed onto the through pipe respectively and is arranged on the receptacle main body, can in particular be connected to the receptacle main body in a rotationally fixed manner, for example by being pinned to the receptacle main body (using a pin), and here a seal (see above) between the components can also be provided.

[0034] According to one variant, it is further provided that for example a coolant supply pipe serving to supply coolant is connected, in particular screwed, to the through-pipe holder, which may also provide a seal (see above) between the components, which may be advantageous.

[0035] As a variant, a sleeve can also be arranged, in particular in a sealed manner, between the through pipe and the through pipe holder (see above).

[0036] Here, it may be advantageous for the sleeve to be (only) pressed axially into the receptacle bore in the through pipe holder, since in this way free axial displacement of the component is guaranteed when the through pipe is adjusted axially (see, for example, setting the support via a screw thread).

[0037] A clamping shoulder (mentioned) provided on the other end of the through pipe, which according to one variant is particularly configured to be conical, is provided for support between the receptacle main body or between another component, such as a tool bearing, e.g. a grinding disc bearing, connected to the receptacle main body and supported at its top (by a press fit).

[0038] This means that the through pipe is supported on the receptacle main body (itself), or on other components connected to the receptacle main body, or on tool bearings or grinding disc bearings, where said other components or said bearings are, for example, screwed or pinned to the receptacle main body, respectively, so that support of the through pipe in relation to the receptacle main body can be achieved (directly / without intermediary or indirectly).

[0039] The interfaces / contact surfaces between the components can be sealed.

[0040] Also, for example, other components that can be screwed to the receptacle main body, or the tool bearing or tool grinding disk bearing, respectively, can be implemented to be integral with the receptacle main body, and furthermore, the grinding disk bearing can be constructed in multiple parts.

[0041] Advantageously, the tool or grinding disc bearing each has at least one filler bore that opens into the cavity (of the hollow cylindrical receptacle main body) and that can be closed, in particular by means of a closing screw, via which damping or damping material, for example a foam, such as aluminum foam, elastomers and the like (which will also be described at a later stage), can be filled into the cavity, respectively.

[0042] The support of the through pipe (in relation to the receptacle body) via the clamping shoulder on the through pipe can be implemented in an advantageous manner via a corresponding cone (with a predefinable cone angle) on the through pipe, for example as an external cone on the periphery of the through pipe. The cone angle can vary within a wide range, for example a very sharp cone with a cone angle of about 40° to 60° or else a very flat cone with a cone angle of about 5° to 20° can be implemented.

[0043] In this instance, a complementary counter shoulder / counter cone or tool or gliding disc bearing on the receptacle main body or on other parts, respectively, must be provided in a corresponding manner and in a convenient manner.

[0044] It is also advantageous to provide a retaining or clamping element for the tool or grinding disc, respectively, such as a clamping screw or clamping flange, respectively, which can be screwed onto the tool or grinding disc bearing, respectively, so that the tool or grinding disc, respectively, can be supported (held) so as to be arranged between the tool or grinding disc bearing, respectively, and the retaining / clamping element or clamping screw / flange, respectively.

[0045] The tool can also be held on or fixed to the tool or grinding bearing, respectively, e.g., screwed onto the tool or grinding bearing, respectively, e.g., via (direct) threading, e.g., by means of a (long / clamping) screw or the like, whereby optionally further holding elements can also be provided, e.g., entrainment blocks.

[0046] A coolant bore can be conveniently provided in the tool or grinding disc bearing, respectively, which extends axially through the tool or grinding disc bearing, respectively, and by means of which coolant can be directed (axially) through the tool or grinding disc bearing, respectively.

[0047] Furthermore, a coolant bore can also be provided in the retaining / clamping element or clamping screw / flange, respectively, which extends axially through the retaining / clamping element or clamping screw / flange and can be closed, in particular by means of a closure screw.

[0048] It is also possible to provide a radial coolant through-bore in the retaining / clamping element or clamping screw / flange, in particular extending from the axial coolant bore in the retaining / clamping element or clamping screw / flange to its outer periphery (outer periphery), so that the coolant can be guided through the retaining / clamping element or clamping screw / flange to the tool or grinding disc, respectively.

[0049] Also, if the tool itself, for example a grinding disk, further comprises holes, then said tool can also be actively cooled.

[0050] It is also possible to provide a sleeve arranged and in particular sealed (see above) on the interface between the through pipe and the retaining / clamping element or clamping screw / flange, respectively, and on the clamping screw / flange between the through pipe and the retaining / clamping element or clamping screw / flange, respectively, in which case the sleeve can provide a sealed transfer of coolant from the through pipe to or via the interface on top of the retaining / clamping element or clamping screw / flange, respectively.

[0051] It is further advantageous if bores for the balance screws are arranged on the outer circumferential surfaces of the receptacle main body and / or the tool or grinding disc bearing, respectively, to compensate for any imbalance mass in the system, although such bores (for the balance screws) can also be provided elsewhere on the grinding disc receptacle.

[0052] The damping of the receptacle can be further increased in that at least one damping body or seismic mass, respectively, in particular a plurality or multiple damping bodies or seismic masses, respectively, are provided on the receptacle.

[0053] In principle, such damping bodies on the grinding disc receptacle can each be arbitrary in terms of shape and / or material and / or location, or can be varied within wide limits.

[0054] 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 arranged within the cavity of the receptacle main body (alternatively, an external side on the receptacle main body may also be possible).

[0055] Here, it may be advantageous for the at least one damping body to be an annular disc or sleeve, in particular an annular disc or sleeve pressed into, held within, pressed into and / or supported by a cavity, in particular an annular disc or sleeve of plastic material, metal (optionally also a heavy metal and therefore having a much greater density than steel, for example tungsten), or rubber.

[0056] It is also possible for at least one damping body to be held in the cavity of the receptacle main body at a distance from the cylindrical barrel (of the receptacle main body) and / or from the through pipe, in particular by means of a ring, in particular a rubber or plastic ring, in which case the damping body is made, in particular, of a heavy metal or plastic material.

[0057] It may also be particularly advantageous to provide a plurality, in particular a large number, of damping bodies arranged within the cavity.

[0058] As a variant, in this example, each of the multiple or numerous damping bodies can be annular disks held axially apart by means of a sleeve, in particular a ring, in particular a rubber or plastic ring, held apart from the cylindrical barrel (of the receptacle main body) or from the through pipe.

[0059] Alternatively, a plurality or number of damping bodies may be provided, each in the form of annular disks ("stacks") directly supporting one above the other.

[0060] Also, damping materials (already mentioned), in particular elastomers or (aluminium) foams, can be incorporated within the cavity.

[0061] In the case of attachment to a working / grinding spindle, it is advantageous if the receptacle provides an interface for the working / grinding spindle, for example an HSC or sharp cone. However, other non-standardized connection possibilities / interfaces can also be used. The interface here can be arranged integrally on one end of the receptacle main body or can also be arranged as a separate component on the receptacle main body. The interface itself can also be embodied integrally or as multiple parts for its part.

[0062] The description given above of advantageous embodiments of the present invention includes a number of features that in some cases are reproduced together as groups in individual dependent claims, although these features can also be considered individually in any convenient manner and can also be combined to form other meaningful combinations.

[0063] Although certain terms are used in the description and / or claims in the singular or in combination with a quantifier in each case, there is no intention to limit the scope of the invention in terms of these terms to the singular or the respective quantifier. Furthermore, the terms "a" and "an" should not be construed as quantifiers, but as indefinite articles.

[0064] The above-mentioned properties, features, and advantages of the present invention, as well as the manner in which they are realized, will become more clear and easily understood in connection with the following description of exemplary embodiments of the present invention, which are set forth in more detail in connection with the drawings / figures (like parts / components and features have like reference numerals in the drawings / figures).

[0065] The example embodiments serve to illustrate the invention and do not limit the invention to combinations of features, even relative to the functional features set forth herein, and further, for this purpose, any suitable feature of any example embodiment may be expressly considered alone, removed from the example embodiment, incorporated within another example embodiment to complement that other example embodiment, and / or combined with any of the claims.

[0066] The drawings are as follows: [Brief explanation of the drawings]

[0067] [Figure 1] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 1a] 2 shows a fragment of a grinding disc receptacle according to an embodiment of the invention according to FIG. 1 with a grinding disc bearing threaded into the receptacle main body. [Figure 2] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 3]1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 4] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 5] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 6] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 7] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 8] 1 illustrates a grinding disc receptacle according to one embodiment of the present invention. [Figure 9] 1 illustrates a cutter head receptacle according to one embodiment of the present invention. [Figure 9a] 10 shows the cutter head receptacle according to the embodiment of the invention of FIG. 9 in different longitudinal sections with the threading of the cutter head bearing into the receptacle main body and the threading of the cutter head into the cutter head bearing. [Figure 9b] 10 shows the cutter head receptacle according to the embodiment of the invention of FIG. 9 in different longitudinal sections with the threading of the cutter head bearing into the receptacle main body and the threading of the cutter head into the cutter head bearing. [Figure 9c] 9 shows a fragment of a cutterhead receptacle in perspective view according to an embodiment of the present invention. [Figure 10] 1 illustrates a side milling cutter receptacle according to one embodiment of the present invention. [Figure 10a] 11 shows the side milling cutter receptacle according to the embodiment of the invention of FIG. 10 in different longitudinal sections with threading of the side milling cutter bearing into the receptacle main body. DETAILED DESCRIPTION OF THE INVENTION

[0068] -(Modular) Grinding Disc Receptacle (Fig. 1 to 8) 1 (with a fragmentary view according to FIG. 1a) shows a modular or multi-piece grinding disc receptacle 2, respectively.

[0069] The grinding disc receptacle 2 has a substantially rotationally symmetric hollow cylindrical receptacle main body 4 (having a cylindrical barrel 8).

[0070] A grinding disc bearing 36 is arranged on one end of the receptacle main body 4 so as to be screwed to the receptacle main body 4 by means of a screw 138 (see FIG. 1 a, which shows a fragment of the cover of the grinding disc receptacle 2 in a different (longitudinal) section showing the grinding disc bearing 36 and the threading 136 of the receptacle main body 4). As shown in FIG. 1, a grinding disc 48 is supported (held) between the grinding disc bearing 36 and a clamping flange 46 so as to rest on or against said grinding disc bearing 36.

[0071] A cover 90 is screwed (92) to the clamping flange 46, said cover 90 covering the coolant bore 54 which extends in the axial direction 14 through the clamping flange 46 at its center.

[0072] Also, as shown in FIG. 1 , the clamping flange 46 provides a coolant bore 50 extending radially 16 outward from the coolant bore 54 in the central axis 14 to the outer side 114 of the clamping flange 46.

[0073] A coolant bore 54 extending centrally in the axial direction 14 through the clamping flange 46 on the cover side is closed by means of a closing screw 52 .

[0074] Support of the grinding disc 48 between the clamping flange 46 and the grinding disc bearing 36 occurs via threading of the clamping flange 46 and the grinding disc bearing 36 using a long screw 94 which extends through a through bore 96 in the clamping flange 46 and into (is threaded at) a thread 98 in a bore 40, a so-called filler bore 40 (for this purpose see below), in the grinding disc bearing 36.

[0075] For example, a damping material such as elastomer or (aluminum) foam 80 (shown as an option) can be filled into the cavity 6 of the (hollow cylindrical) receptacle main body through these filler bores 40, which can be closed using closure screws 38, as also shown in Figure 1.

[0076] Also, as shown in FIG. 1, a different bore 60, specifically a threaded bore, for a balance screw (62, not shown) is incorporated on the outer circumferential surface 64 of the receptacle main body 4 and the grinding disc bearing 36.

[0077] A through pipe 10, in this case a coolant pipe 10, is arranged within the hollow cylindrical receptacle main body 4 so as to be coaxial (in terms of the central axis / axis of symmetry / axis of rotation 12) with the receptacle main body 4, with the through pipe 10 adjacent the cover being held (supported) within a through bore 100 within the grinding disc bearing 36 so as to be sealed by an annular seal 66 (in relation to the grinding disc bearing) (see below for further details).

[0078] As shown in FIG. 1, the coolant pipe 10 has a predefinable cone angle 44 at its cover-proximal end, e.g., about 50°, providing a conical clamping shoulder 34 (forming the outer cone 42) supported relative to a complementary clamping shoulder 88 in the throughbore 100 of the grinding disc bearing 36.

[0079] Furthermore, this support of the coolant pipe 10 and grinding disc bearing 36 has the effect that the grinding disc bearing 36, which is screwed (138) to the receptacle main body 4 via the flange 102, is positioned in a pressed state against or on top of the cover-proximal end side 104 of the receptacle main body 4 so as to be supported, or is pulled in a pressed state against the cover-proximal end side 104 of the receptacle main body 4; therefore, the coolant pipe 10 is ultimately supported in relation to the receptacle main body 4, which imparts a large degree of rigidity to the system.

[0080] An annular seal 140 seals the contact area between the grinding disc receptacle 36 and the receptacle main body 4 .

[0081] The clamping force for supporting the coolant pipe 10 (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 means of the threading 20 at the other end of the coolant pipe 10.

[0082] For this purpose, the coolant pipe 10 there (on its other end) engages in an internal thread 86 of a through pipe holder 22 which is connected in a rotationally fixed manner to the receptacle main body 4 (see below for details), thereby providing an external thread 18 by which the coolant pipe 10 can be screwed (threaded 20) into the through pipe holder 22, and more particularly through the through pipe holder 22 (at its upper part adjacent to the cover) into the through bore 116. The axial thread movement determines the pressure (in a stepless manner).

[0083] Also, a seal 66 (in the form of an annular seal 66 ) between the coolant pipe 10 and the through pipe holder 22 is provided in the area of ​​the thread between the coolant pipe 10 and the through pipe holder 22 .

[0084] As shown in FIG. 1, a sleeve 58 is inserted within the coolant pipe 10 near the cover at the interface 56 between the coolant pipe 10 and the clamping flange 22 located inside the grinding disc bearing 36 (said sleeve 58 is also sealed 66 relative to the coolant pipe 10), with the other end of said sleeve 58 being received within the axial coolant bore 54 of the clamping flange 46 (and sealed 66 therein).

[0085] 1, at the end of the coolant pipe 10 opposite the cover-proximal end, a sleeve 30 is inserted further into the coolant pipe 10 up to a detent 110 (and the sleeve 30 is sealed 32 relative to the coolant pipe 10), while the other end of the sleeve 30 is inserted into a through-bore 116 through the through-pipe holder 22, but is axially free to ensure maximum axial thread movement. Also, a seal 32 is provided between the sleeve 30 and the through-pipe holder 22.

[0086] 1, the through pipe holder 22 is supported on a (counter) shoulder 108 inside the receptacle main body 4 via a shoulder 106 disposed on the upper part of the through pipe holder 22. A pin 24 prevents the through pipe holder 22 from twisting.

[0087] FIG. 1 further shows that the coolant supply pipe 26 on the end of the through pipe holder 22 opposite the cover-proximal end is connected to the through pipe holder (in a sealed manner 32) by being threaded through a sleeve 112.

[0088] An interface 82, in this case an HSC 82, is arranged (integrally) on the receptacle main body 4 at the other end of the receptacle main body 4, which is the grinding disk proximate end, said interface 82 in this case establishing a connection between the grinding disk receptacle 4 and the working spindle / grinding spindle (84, not shown) of the machine tool (see Figure 8, which highlights that in this case it is also possible for the interface 82, which is integral with the receptacle main body 4, to be implemented by a separate component 82, which in this case is optionally connected to the receptacle main body 4 in a rotationally fixed manner using a pin 136).

[0089] Coolant can be supplied to the grinding disc 48 via the coolant supply pipe 26, the through bore 116 in the through pipe holder 22, the sleeve 30 on its top side facing away from the cover-proximal side, the coolant pipe 10, the cover-proximal sleeve 58, and the 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 the grinding disc receptacle 4 or on components above it, respectively, prevent any ingress of coolant into the cavity 6.

[0090] Alternatively or additionally, coolant from outside the grinding disc 48 can be guided through radial bores (not shown) in the grinding disc bearing 36 and / or clamping flange 46 .

[0091] 2-8 show modified and / or variant embodiments of the grinding disc receptacle 2 shown in FIG. 1 and described above.

[0092] Since these (FIGS. 2 to 8) embodiments of the grinding disc receptacle 2 substantially correspond to the (described) grinding disc receptacle 2 of FIG. 1, a repetition of the description of the same functionally equivalent components in the case of the further grinding disc receptacles 2 of FIG. 2 to 8 will be omitted in the following description. In the following, only modifications and variations (FIGS. 2 to 8) will be visualized.

[0093] FIG. 2 shows the grinding disc receptacle 2 in a way that the grinding disc receptacle 2 is improved in terms of its damping behavior by a further damping element 68 .

[0094] As shown in FIG. 2, a number of damping elements 68 in the form of annular discs 70 (arranged one above the other in a stacked manner) are located inside the cylindrical barrel 8 of the receptacle main body 4 .

[0095] These annular discs 70 are press-fit coaxially between the receptacle main body 4 and the through pipe / coolant pipe 10 via their outer periphery 120 within the cylindrical barrel 8 of the receptacle main body 4, and extend (within the cavity 6 within the receptacle main body 4) across substantially the entire axial length 14 between the through pipe holder 22 and the grinding disc bearing 36.

[0096] The inner diameter 122 of the annular disc 70 substantially corresponds to the outer diameter 126 of the through pipe holder 22, allowing for radial spacing 72 from the outer periphery 124 of the coolant pipe 10 (when the annular disc 70 is not seated on the through pipe holder 22) (see FIG. 2).

[0097] FIG. 3 shows the grinding disc receptacle 2 in a way that the grinding disc receptacle 2 is improved in terms of its damping behavior by another further damping element 68 .

[0098] As shown in FIG. 3, a damping element 68 in the form of a sleeve 70 is located inside the cylindrical barrel 8 of the receptacle main body 4 .

[0099] The sleeve 70 is press-fit coaxially between the receptacle main body 4 and the through pipe / coolant pipe 10 via its outer periphery 120 within the cylindrical barrel 8 of the receptacle main body 4, and extends (within the cavity 6 of the receptacle main body 4) substantially across the entire length in the axial direction 14 between the through pipe holder 22 and the grinding disc bearing 36. The sleeve 70 can also be axially supported within the cavity 6 of the receptacle main body 4 by utilizing the grinding disc bearing 36.

[0100] The wall thickness 128 of the sleeve 70 is configured to be thin-walled so as to define the radial spacing 72 from the outer periphery 124 of the coolant pipe 10 .

[0101] FIG. 4 again shows the grinding disc receptacle 2 in a way that it is improved in terms of its damping behavior by further damping elements 68 .

[0102] As shown in FIG. 4, two damping elements 68 in the form of annular discs 70 are located inside the cylindrical barrel 8 of the receptacle main body 4 .

[0103] These annular discs 70 are held coaxially between the receptacle main body 4 and the through pipe / coolant pipe 10 within the cylindrical barrel 8 of the receptacle main body 4 via (rubber) rings 74 arranged on the outer periphery 120 of the annular discs 70 at radial intervals 72, and in particular are held (in the axial direction 14) on the grinding disc bearing proximate end of the receptacle main body 4 so as to have a mutual axial interval 78.

[0104] Thus, when the inner diameter 122 of the annular disc 70 exceeds the outer diameter 126 of the through pipe 10 , the annular disc 70 also allows for radial spacing 72 from the outer periphery 124 of the coolant pipe 10 .

[0105] FIG. 5 shows the grinding disc receptacle 2 in this case in how it is improved in terms of its damping behavior by a further damping element 68 .

[0106] As shown in FIG. 5, a damping element 68, again in the form of a sleeve-shaped body 70, referred to simply as sleeve 70 for short, is located inside the cylindrical barrel 8 of the receptacle main body 4.

[0107] The sleeve 70 is held within the cylindrical barrel 8 of the receptacle main body 4 in a coaxial relationship between the receptacle main body 4 and the through pipe / coolant pipe 10 via (rubber) rings 74 arranged at two axially spaced locations on the outer periphery 120 of the sleeve 70 at radial intervals 72.

[0108] The inner diameter 122 of the sleeve 70 is slightly larger than the outer diameter 126 of the through pipe 10 so that the sleeve 70 can be pressed onto the coolant pipe 10 .

[0109] The sleeve 70 extends axially over the entire axial length between the through pipe holder 22 and the grinding disc bearing 36, but at both ends it may have clearance in each case relative to the through pipe holder 22 and the grinding disc bearing 36.

[0110] FIG. 6 shows the grinding disc receptacle 2 in a way that it is improved in terms of its damping behavior by further damping elements 68, in this case two of them.

[0111] As shown in FIG. 6, in this case two damping elements 68 in the form of annular discs 70 are located inside the cylindrical barrel 8 of the receptacle main body 4 .

[0112] These annular discs 70 are held on the coolant pipe 10 in a coaxial state between the receptacle main body 4 and the through pipe / coolant pipe 10 via (rubber) rings 74 arranged on the inner circumference 130 of the annular discs 70 at radial intervals 72.

[0113] Therefore, when the outer diameter 132 of the annular disc 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, respectively, the annular disc 70 also allows for radial spacing 72 from the receptacle main body 4.

[0114] The two annular discs 70 are axially held in position (with an axial spacing 78) by means of sleeves 76 disposed between and adjacent to the annular discs 70, and are pressed onto or disposed above the coolant pipe between the through pipe holder 22 and the grinding disc bearing 36, respectively.

[0115] FIG. 7 shows a grinding disc receptacle 2 with modified clamping contacts or clamping surfaces, in this case between the coolant pipe 10 and the receptacle main body 4, respectively (direct support without the interposition of a through pipe 10 between the receptacle main body 4).

[0116] This means that the force flow of the support mechanism of 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 intervention.

[0117] As shown in FIG. 7, the coolant pipe 10 is provided for this purpose at its cover-proximal end with a conical clamping shoulder 34 having a predefinable cone angle 44 (forming a flat external cone 42), here for example of about 15°, said clamping shoulder 34 being supported in this case in relation to a complementary clamping shoulder 88 on the receptacle main body 4.

[0118] Thus, the sleeve 58 between the coolant pipe 10 on the one hand and the clamping flange 22 on the other hand is guided through a bore 100 in the grinding disc bearing 36 and is sealed there by means of a first seal 66, said bore 100 in this case being cylindrical and not having any shoulder / cone, and the sleeve 58 is sealed relative to the coolant pipe 10 by means of a second seal 66.

[0119] FIG. 8 highlights that the interface 82 configured integrally with the receptacle main body 4 as described above may also be implemented by a separate component 82 .

[0120] As shown in FIG. 8, the separate interface 82 is here connected to the receptacle main body 4 by a pin 136 in a rotationally fixed manner.

[0121] Therefore, if the interface 82 is provided as a separate component, it is also possible to provide the through pipe holder 22 integrally on the interface, which is an embodiment of the 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.

[0122] - (Modular) Cutter Head Receptacle (Fig. 9 (with Figs. 9a, 9b and 9c)) The receptacle 2 for a rotary tool in Figures 9, 9a to 9c is shown in an embodiment as a cutter head receptacle 2. This means that instead of the above-mentioned grinding disc receptacle 2 (according to Figures 1 to 8, see in particular Figure 1) in which a grinding disc 48 as a rotary tool is held so as to be supported in the receptacle 2, Figures 9, 9a to 9c show said receptacle 2 for a cutter head 48 as the tool to be received.

[0123] Since this embodiment of the cutter head receptacle 2 (according to Figures 9, 9a-9c) substantially corresponds to the grinding disc receptacle 2 (described) according to Figure 1 (with the only difference that a cutter head 48 is now received in the receptacle 2 instead of a grinding disc 48), a repetition of the description of the same functionally equivalent components in the cutter head receptacle 2 in Figures 9, 9a-9c will be omitted in the following description. In the following, only the modifications and variations directly related to the cutter head (in Figures 9, 9a-9c) will be visualized.

[0124] As shown in Figures 9, 9a-9c, and particularly Figure 9a, the cutter heads 48 are each threaded onto the cutter head bearings 36 using a long screw or clamping screw 94.

[0125] An entrainment block 144 (see FIG. 9), arranged on the tool on the one hand and in the cutter head bearing on the other hand, engages in a transverse groove (arranged on the side of the cutter head facing away from the tool) and functions for torque entrainment.

[0126] - (Modular) side milling cutter receptacle (Fig. 10 (with Fig. 10a)) In Figures 10 and 10a, a receptacle 2 for a rotary tool is shown in an embodiment as a side milling cutter receptacle 2. This means that instead of the above-mentioned grinding disc receptacles 2 (according to Figures 1 to 8, see in particular Figure 1) or cutter head receptacles 2 (according to Figures 9, 9a to 9c), in which a grinding disc 48 or a cutter head 48 as a rotary disc is held in the receptacle 2, Figures 10 and 10a show said receptacle 2 for a side milling cutter 48 as the received tool.

[0127] Since this embodiment of the side milling cutter receptacle 2 (according to Figures 10 and 10a) substantially corresponds to the grinding disc receptacle 2 (described) according to Figure 1 (with the only difference that a side milling cutter 48 is now received in the receptacle 2 instead of a grinding disc 48), a repetition of the description of the same functionally equivalent components in the side milling cutter receptacle 2 of Figures 10 and 10a will be omitted in the following description. In the following, only the modifications and variations directly related to the side milling cutter (in Figures 9, 9a to 9c) will be visualized.

[0128] As shown in Figures 10 and 10a, the side milling cutters 48 are each screwed onto the side milling cutter bearings 36 using a long screw or clamping screw 94.

[0129] Although the present invention has been illustrated and described in relative detail using preferred exemplary embodiments, the present invention is not limited to the disclosed examples, and other variations can be derived therefrom without departing from the scope of protection of the present invention. [Explanation of symbols]

[0130] 2 Receptacles for rotary tools, e.g. cutter heads, saw blades, grinding disc receptacles, (side) milling cutters etc. 4 Receptacle main body 6 cavities 8 cylindrical barrels 10 Through pipe, coolant pipe 12 Central axis / Axis of symmetry / Axis of rotation 14 axial, axial direction 16 Radial, radial direction 18 (external) threads 20 Screw-in 22 Through pipe holder 24 pin, pinned 26 Coolant supply pipe 28 Screw fastening, screwing 30 sleeves 32 Sealing 34 Clamping Shoulder 36 Tool bearings, grinding disc bearings, cutter head bearings, side milling cutter bearings 38 Closure screw 40 Filler Bore 42 (external) cone 44 Cone Angle 46 Retaining / clamping element or clamping screw / flange respectively 48 Tools, cutter heads, saw blades, grinding discs, (side) milling cutters 50 Radial Coolant Bores 52 Closure screw 54 (axially extending) coolant bore 56 Interfaces (through pipe / retaining / clamping element or clamping screw / flange respectively) 58 Sleeve 60 Bore (for balance screw) 62 Balance screw (not shown) 64 Outer surface 66 Sealing, insulation (coolant pipe), annular seal 68 Damping body, damping / vibration mass 70 Annular disc, sleeve 72 (radial) spacing, (radial) spacing 74 Ring 76 Sleeve 78 (axial) spacing, (axial) separation 80 Damping materials, elastomers, (aluminum) foams 82 Interface, HSC, Sharp Cone 84 Working spindle / grinding spindle (not shown) 86 (for 18 / 20) internal thread 88 (Complementary) Clamping Shoulder 90 Cover 92 (Cover) Screw-in 94 Long / Clamping Screw 96 (Thru) Bore 98 threads 100 Through bore (in tool bearing / grinding disc bearing) 102 flange 104 Receptacle main body cover-near end side 106 Shoulder (on through pipe holder) 108 (for 106) (counter) shoulder 110 Detent 112 Sleeve 114 External side 116 through bore 120 perimeter 122 (70) inner diameter 124 perimeter 126 (22 or 10) outer diameter 128 Wall Thickness 130 inner circumference 132 (70) outer diameter 134 (4 / 8) inner diameter 136 pins 138 (long / clamping) screw 140 Annular seal 142 Transverse groove 144 Entrainment Block

Claims

1. 1. A receptacle for a rotary tool, comprising: a rotationally symmetric hollow cylindrical receptacle main body; 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, particularly so as to be supported relative to the receptacle main body; 1. A receptacle for a rotary tool, comprising:

2. 2. A receptacle for a rotary tool according to claim 1, characterized in that the through pipe, which is particularly rotationally symmetrical, is arranged in the receptacle main body so as to be coaxial with the receptacle main body.

3. 3. A receptacle for a rotary tool according to claim 1 or 2, characterized in that a screw thread, in particular an external screw thread for screwing into a through pipe holder arranged in the receptacle main body, is arranged on one end of the through pipe on the through pipe.

4. 3. A receptacle for a rotary tool according to claim 1 or 2, characterized in that it includes a through pipe holder arranged on the receptacle main body, in particular a through pipe holder connected to the receptacle main body in a rotationally fixed manner, in particular a through pipe holder fixed to the receptacle main body by a pin.

5. 5. A receptacle for a rotary tool according to claim 4, characterized in that a coolant supply pipe is connected to the through pipe holder, in particular by screwing, and / or a sleeve is arranged between the through pipe and the through pipe holder, in particular arranged in a sealing manner.

6. 2. A receptacle for a rotary tool according to claim 1, characterized in that a clamping shoulder is arranged on the other end of the through pipe for support between the receptacle main body or a tool bearing, in particular a grinding disc bearing, connected to the receptacle main body.

7. 2. A receptacle for a rotary tool according to claim 1, characterized in that it includes a tool bearing, in particular a grinding disc bearing, in relation to which the through pipe is supported and which is supported on the receptacle main body, in particular screwed to the receptacle main body.

8. 8. A receptacle for a rotary tool according to claim 6 or 7, characterized in that the tool bearing, in particular the grinding disc bearing, has at least one filler bore which opens into the cavity and which can be closed in particular by means of a closing screw.

9. A receptacle for a rotary tool according to claim 6, characterized in that the clamping shoulder has an external cone.

10. 8. A receptacle for a rotary tool according to claim 6 or 7, characterized in that it comprises a holding / clamping element, in particular a clamping screw / flange, for a tool, in particular the grinding disc bearing, which can be screwed onto the tool bearing or grinding disc bearing, respectively.

11. 11. A receptacle for a rotary tool according to claim 10, characterized in that it comprises a radial coolant through bore in the retaining / clamping element or clamping screw / flange and / or a coolant bore extending axially through the retaining / clamping element or clamping screw / flange and which can be closed in particular by means of a closure screw.

12. 11. A receptacle for a rotary tool according to claim 10, characterized in that it comprises a sleeve arranged and in particular sealed on the interface between the through pipe and the retaining / clamping element or clamping screw / flange, respectively.

13. 8. A receptacle for a rotary tool according to claim 6 or 7, characterized in that it comprises a bore, in particular a threaded bore, for a balance screw on the outer circumferential surface of the receptacle main body and / or of the tool bearing or the grinding disc bearing, respectively.

14. 3. A receptacle for a rotary tool 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. 3. A receptacle for a rotary tool according to claim 1 or 2, comprising at least one damping body disposed within the cavity.

16. 16. A receptacle for a rotary tool according to claim 15, characterized in that the at least one damping body is an annular disc or sleeve, in particular an annular disc or sleeve press-fitted into and / or supported within the cavity, in particular an annular disc or sleeve made from a plastic material, metal or rubber.

17. 16. A receptacle for a rotary tool according to claim 15, characterized in that the at least one damping body is a damping body, in particular made of (heavy) metal or plastic material, held at a distance from the cylindrical barrel and / or from the through pipe, in particular by means of a ring, in particular by means of a rubber or plastic ring.

18. 3. A receptacle for a rotary tool according to claim 1 or 2, characterized in that it comprises a plurality, in particular a large number, of damping bodies arranged in the cavity.

19. 19. A receptacle for a rotary tool according to claim 18, characterized in that the plurality or number of damping bodies are annular discs held axially apart by means of a sleeve, in particular by means of a ring, in particular by means of a rubber or plastic ring, held apart from the cylindrical barrel and / or from the through pipe.

20. 3. A receptacle for a rotary tool 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. 3. A receptacle for a rotary tool according to claim 1 or 2, characterized in that it comprises 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 to be connected as a separate component.

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