Clamping and / or braking device for humid environments

Abstract

The present disclosure relates to an annular elastic element for a clamping and / or braking device, the element comprising: an annular spring plate having a first annular side and a second annular side; the first sealing element is arranged on the first side face of the annular spring plate; the second sealing element is arranged on the second side face of the annular spring plate, and the second sealing element forms an inner protrusion in the area of the inner edge of the annular spring plate and forms an outer protrusion in the area of the outer edge of the annular spring plate; wherein the first sealing element forms a first projection. The invention further relates to an assembly for a pneumatic clamping and / or braking device having such an annular elastic element, and to a pneumatic clamping and / or braking device.

Description

Technical Field

[0001] The present disclosure relates to an annular elastic element and an assembly of a pneumatic clamping and / or braking device having the annular elastic element and a pneumatic clamping and / or braking device. The present disclosure also relates to a housing component for clamping the annular elastic element. Background Art

[0002] When manufacturing tools or machine parts, machining machines are used, in particular working spindles or other machine tools, which process material from a workpiece by means of a tool fixed to an axis, in particular in order to bring it into the desired shape. The axis can be a rotating axis or a pivoting axis of such a machine. In addition, rotatable or pivotable work tables are used, via which the tool or workpiece is placed in a suitable machining position or the workpiece is moved at a corresponding speed. Prerequisites for precise and efficient machining are, in particular, high speeds of the axes. The task of emergency or safety systems is therefore to stop the axis in the event of a malfunction or failure of the system (e.g. a power failure or a cable break) or to hold the axis in a fixed position and thereby fix it.

[0003] Typical processing machines have electromagnetic, hydraulic or pneumatic clamping and / or braking devices. These devices have friction linings that can be frictionally connected to the shaft by force transmission. Thus, the shaft can be fixed at different speeds.

[0004] In a hydraulic clamping device, a chamber is filled with hydraulic oil and clamps a rotating shaft or a rotating disk. Passive hydraulic clamps are also known. However, the reaction time of such hydraulic clamps is usually long and very high costs are required to shorten their reaction time. In addition, hydraulic materials, especially hydraulic valves and hydraulic pipes, are expensive and require long assembly times. The additional cost of maintaining the cleanliness of the environment of the hydraulic clamp is also determined by the hydraulic oil.

[0005] In pneumatic clamping and / or braking devices, the elastic element, especially the elastic plate, is usually filled with compressed air, which can overcome some of the above-mentioned disadvantages of hydraulic clamping devices.

[0006] EP1585616B1 and EP1651881B1 describe pneumatic clamping devices with two annular spring plates, which are introduced into the housing of the clamping device and form a pressure space therein, which can be filled with compressed air or ventilated and exhausted to change the bending of the spring plates and thus switch between a closed state and an open state of the clamping device, in which the object to be clamped is clamped like a rotating shaft; in the open state, the object is free. However, practice has shown that such clamps fail in humid environments or cannot operate without interference.

[0007] EP1629939A1 discloses a pneumatic brake device which is not suitable for use in a wet environment, as described below. Summary of the invention

[0008] Based on the prior art mentioned in the introduction, the object of the present disclosure is to provide means to enable pneumatic clamping and / or braking devices to operate reliably in wet environments.

[0009] This object is achieved by an annular elastic element having the features of claim 1, an assembly having the features of claim 31, a clamping and / or braking device having the features of claim 42 and a housing part having the features of claim 63. Preferred embodiments are described in the dependent claims, the description and the drawings.

[0010] According to the solution of the present invention, an annular elastic element for a clamping and / or braking device is proposed, which element includes: an annular spring plate having a first annular side surface and a second annular side surface; a first sealing element, which is arranged on the first side surface of the spring plate; a second sealing element, which is arranged on the second side surface of the spring plate, and the second sealing element forms an inner protrusion in the inner edge area of ​​the annular spring plate and an outer protrusion in the outer edge area of ​​the annular spring plate, and the first sealing element forms a first protrusion.

[0011] The term "annular" in this disclosure should not necessarily be understood as a circular annular shape. Other annular embodiments, such as angular annular embodiments, also fall within this term.

[0012] According to the term "protrusion", the first protrusion rises or protrudes from the surface of the first sealing element. Similarly, the inner protrusion and the outer protrusion rise or protrude from one or more surfaces of the second sealing element.

[0013] Preferably, the first sealing element is formed and / or molded integrally with the first protrusion. Preferably, the second sealing element is formed and / or molded integrally with the inner protrusion and / or the outer protrusion.

[0014] According to the solution of the present invention, a component for a clamping and / or braking device is also proposed, which comprises: an annular elastic element according to the present invention; and a shell component, which has an annular recess for clamping the annular elastic element, and the shell component has an inner surface defined by the recess; wherein, when the elastic element is clamped with the first side facing the inner surface in the recess, the first protrusion of the first sealing element is configured to contact a first part of the inner surface of the shell component.

[0015] According to the solution of the present invention, a clamping and / or braking device for clamping and / or braking an object to be clamped and / or braked is also proposed, the device comprising: a first elastic element according to the present invention and a second elastic element according to the present invention; a housing comprising a first housing component having an inner surface and a second housing component having an inner surface, the housing components being arranged relative to each other and fastened to each other so that the inner surfaces of the housing components jointly define an inner space within the housing; one or more clamping elements, each clamping element having a clamping surface; a spring, arranged in the inner space, comprising a first elastic element and a second elastic element, wherein when the elastic elements are arranged in the inner space, a first pressure space is formed in the inner space between the elastic element and the inner surface of the housing component, the first pressure space being able to be vented and being able to be acted on by the positive pressure of the pressure medium supplied to the housing. space, a first elastic element is clamped in the internal space with its first side facing the inner surface of the first shell part, and a second elastic element is clamped in the internal space with its first side facing the inner surface of the second shell part; wherein the spring is configured so that when the first pressure space is exhausted or filled with positive pressure, the bending of at least one of the spring plates of the elastic element can be changed so that the device changes between an open state and a closed state, in which the object to be clamped is spaced apart from one or more clamping surfaces, and in the closed state, at least one of the one or more clamping surfaces transmits clamping and / or braking force to the object; and a first protrusion of a first sealing element of at least one elastic element is configured to contact a first portion of the inner surface of one of the shell parts to at least inhibit the flow connection between the area of ​​the first pressure space and the transition zone between the shell parts.

[0016] The object of the present invention is to overcome the long-standing problem that the clamping and / or braking device is prone to failure in a wet environment. The inventor has made the following findings based on the present disclosure.

[0017] During operation of the device under the influence of liquid medium, in particular in the area of ​​the clamping surface, the liquid medium may penetrate into the housing of the device. Due to this possibility, during operation, the medium may penetrate into the first pressure chamber, which may lead to its accumulation in the first pressure chamber. The penetration of the liquid medium may lead to failure of the components due to leakage (e.g., rubber damage), dirtying of the device and poor reaction time of the device. The inventors have recognized that the penetration of the liquid medium is mainly due to the small gaps present in the transition zone of the housing components of the device, in particular the transition zone of the two clamping elements or clamping surfaces of the housing components. During the opening process, for example, the second pressure chamber is expanded by filling with compressed air. At the same time, the first pressure chamber is exhausted. The movement of the elastic element (e.g., a rubber spring plate) expels air from the first pressure chamber, thereby generating a suction effect through the first pressure chamber. Due to the penetration of the liquid medium into the first pressure chamber, a permanent small leak is usually generated, especially for the second pressure chamber, which leads to a continuous flow of the liquid medium as long as the second pressure chamber is expanded. Due to this influence, the suction effect is further enhanced, resulting in accelerated failure or premature failure of the device.

[0018] Based on this, the inventors have realized that the provision of a sealing element with a protrusion on the side of the elastic element facing the first pressure chamber will interrupt or inhibit the suction effect, so that the above-mentioned device no longer fails or malfunctions. In particular, these devices can inhibit the fluid connection between the first pressure chamber and the transition zone of the housing part or the clamping element without thereby impairing the opening and closing function of the device or its dynamic performance. In the elastic element according to the present invention, the second sealing element is arranged on the second side of the annular spring plate, and the second sealing element has an inner protrusion in the inner edge area of ​​the annular spring plate of the elastic element and an outer protrusion in the outer edge area of ​​the annular spring plate. The two protrusions at the inner edge and outer edge of the spring plate are usually used to abut against the inner wall of the opposite second elastic element or the housing to form a second pressure chamber there. Therefore, each of the two protrusions can preferably have a bearing surface. According to the above findings of the inventors, the elastic element according to the present invention has a first sealing element on the other (first) side of the spring plate, and the first sealing element can therefore face the first pressure chamber, and the first sealing element forms a first protrusion, which is suitable for protruding into the first pressure chamber and at least inhibiting the fluid connection between the first pressure chamber and the transition area of ​​the housing part there.

[0019] In the prior art mentioned in the patent EP1629939A1 mentioned in the introduction, the lips 60, 61, 63, 64 are separate from the polymer plates 57, 58. The lips 60, 61, 63, 64 do not rise or protrude from the surface of the plates 57, 58, so that the polymer plates 57, 58 do not form any protrusions for the lips 60, 61, 63, 64, which would have an adverse effect on the required sealing with respect to the environment. In this patent, the lips are only used for driving springs and brake elements.

[0020] The first projection is preferably formed between the inner edge and the outer edge of the annular spring plate, particularly preferably in the region of the inner edge or the outer edge of the annular spring plate, so as to approach the above-mentioned gap between the clamping elements, depending on whether the clamping action is directed inwardly or outwardly. The first projection is preferably attached to a first side of the annular spring plate, so that it is suitable for attachment to the housing part or the transition region of the clamping element and protrudes into the first pressure chamber.

[0021] According to a preferred aspect of the elastic element, the first sealing element also has a second protrusion, which is preferably on the first side, preferably in the area of ​​the edge of the annular spring plate opposite to the edge on which the first protrusion is provided, and the second protrusion is used to further interrupt or suppress the fluid connection of the first pressure chamber and the transition zone of the housing part or the clamping element.

[0022] According to a preferred aspect of the elastic element, the first sealing element and / or the second sealing element is vulcanized onto the spring plate and is fixed particularly well there.

[0023] Preferably, the first and / or second protrusions each have an at least partially circular surface in order to produce a contact in any desired shape of the inner wall of the housing, which contact can inhibit or interrupt the above-mentioned fluid connection.

[0024] According to a preferred aspect of the assembly or device, the housing component has a notch or depression on its inner surface, wherein the notch or depression is preferably complementary in shape to the surface of the first or second protrusion in contact therewith, so that the above-mentioned contact is particularly effective (sealing).

[0025] The inventors have realised that the first and second optional protrusions of the first sealing element are also respectively suitable for inhibiting or even preventing leakage of a pressure medium (particularly a gas) applied to the first pressure chamber. In addition to use in a humid environment, the clamp can also be used in a vacuum or clean room.

[0026] In order to more effectively reduce or prevent the escape of pressure medium (especially gas) into the environment, the inventors have developed a series of further optional devices for using the clamp in a vacuum or clean room. These devices can be combined separately or in combination with the above-mentioned devices for humid environments so that the clamp can be used more reliably in a vacuum or clean room, thereby realizing a universal clamp.

[0027] For example, the inner and / or outer projections of the second sealing element preferably each have an at least partially flat flat surface, which can be used as a bearing surface for a particular seal, for example relative to a housing wall or another elastic element. The clamp or its second pressure chamber is thereby gradually sealed to inhibit or prevent the escape of pressure medium from the second pressure chamber into the environment. When the pressure medium is applied to the second pressure chamber, the flat surface increases the resistance to the permeability of the pressure medium, in particular a gas. The flat surface can reduce or prevent overflow of the medium between the first pressure chamber and the second pressure chamber.

[0028] As an alternative or in addition to the flat surface, the inner and / or outer protrusions of the second sealing element can each at least partially form a preferably radially extending protrusion (or a protruding or outwardly directed curvature) to achieve a particularly good seal for use in a vacuum environment or a clean room. The protrusion can be produced by applying additional (elastic) material of the sealing element relative to the rest of the protrusion. These protrusions can fill the inner space in the housing part, for example in the transition zone of the housing part, and can be in sealing contact with the inner wall of the housing part (for example a bevel or a long chamfer). The protrusion is preferably adjacent to or adjacent to the flat surface, respectively. The flat surface is preferably merged into the protrusion, respectively. The protrusion of the outer protrusion of the second sealing element preferably extends radially outward, preferably radially outward to the outer edge of the spring plate. The protrusion of the inner protrusion of the second seal preferably extends radially inward, preferably radially inward to the inner edge of the spring plate.

[0029] The bulge is particularly advantageous for sealing the first pressure chamber against gaps in the transition region of adjacent housing parts. The bulge has the effect that during operation of the first pressure chamber, almost no or no medium flows in or out through the housing edge.

[0030] The flat surface also supports the displacement of the protuberance against the inner wall of the housing part, thereby supporting the effect of the above-mentioned protuberance. This support is particularly obvious when the flat surface and the associated protuberance are adjacent or abutting and / or merged. Thus, the flat surface and the respective associated protuberance form a combination of features that work synergistically but can exist separately.

[0031] For use in a vacuum or clean room, the elastic material for the elastic element may be a suitable material which preferably releases little or no matter into the vacuum (high media resistance), is suitable for high temperatures and / or has low gas permeability.

[0032] For use in a humid environment or in a vacuum or clean room, the housing parts may be made of a suitable material, preferably steel, which is preferably not prone to corrosion, to avoid releasing rust into the vacuum or clean room.

[0033] In order to further contribute to achieving a particularly good seal when used in a vacuum environment or a clean room, the elastic element according to the invention can have a first port seal for a first port for applying a pressure medium to a first pressure chamber, the first port seal sealing the first port. Preferably, the edge of the first port seal can at least partially and preferably completely surround the first port opening and can be in the form of an O-ring.

[0034] In order to further contribute to the use of particularly good sealing in a vacuum environment or a clean room, the elastic element according to the present invention can have a second port seal for a second port, which is used to apply a pressure medium to a second pressure chamber, and the second port seal seals the second port. Preferably, the edge of the second port seal can at least partially and preferably completely surround the second port opening and can be in the form of an O-ring. Particularly preferably, the edge can form a port protrusion of the second port seal, which forms an undercut at least partially at the edge of the second port opening. The housing part can be undercut by the undercut of the port protrusion of the elastic element. The undercut of the second port seal strengthens the seal toward the outside and reduces the risk of lifting the second port seal from a flat housing surface, especially when applying pressure to the first pressure chamber. In addition, the use of a sealing compound (adhesive) at this position can be avoided by the undercut. Such a sealing compound may have a negative impact on the vacuum or clean room.

[0035] In order to further contribute to achieving a particularly good seal when used in a vacuum environment or in a clean room, the housing part of the assembly or device according to the invention can have a preferably circular groove or nut for accommodating an O-ring. The groove or nut with the O-ring supports the above-mentioned functions of the ridge and the first port seal, so that during operation of the first pressure chamber, no fluid can flow in or out through the housing edge. In addition, a sealant (adhesive) between the two housing halves, which is undesirable when used in a vacuum and a clean room, can be omitted.

[0036] By means of the measures described herein, both individually and in combination, a clamp can be provided that can reliably operate in a humid environment and, moreover, can optionally operate in a vacuum or clean room without thereby adversely affecting the opening and closing dynamics of the clamp.

[0037] If the brief description of the invention above describes features that are not listed in the claims, these features do not constitute essential features that must be included in the claims, but these features are particularly prominent preferred embodiments of the invention to be protected and can be combined with any claim or with each other as required. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1A A schematic cross section through an inwardly directed passive pneumatic clamping and / or braking device according to the invention is shown in the closed state.

[0039] Figure 1B A schematic cross section through an outwardly directed passive pneumatic clamping and / or braking device according to the invention is shown in the closed state.

[0040] Figure 2A A schematic cross section through an inwardly directed passive pneumatic clamping and / or braking device according to the invention is shown in the open state.

[0041] Figure 2B A schematic cross section through an outwardly directed passive pneumatic clamping and / or braking device according to the invention is shown in the open state.

[0042] Figure 3A A schematic cross section through an inwardly directed active pneumatic clamping and / or braking device according to the invention is shown in the open state.

[0043] Figure 3B A schematic cross section through an outwardly directed active pneumatic clamping and / or braking device according to the invention is shown in the open state.

[0044] Figure 4A A schematic cross section through an inwardly directed active pneumatic clamping and / or braking device according to the invention is shown in the closed state.

[0045] Figure 4B A schematic cross section through an outwardly directed active pneumatic clamping and / or braking device according to the invention is shown in the closed state.

[0046] Figure 5A A cross section through a pneumatic clamping and / or braking device according to the invention is shown in a three-dimensional view.

[0047] FIG. 5B to FIG. 5D Shows Figure 5AVariations of the housing components shown.

[0048] FIG. 6A to FIG. 6C An embodiment of a spring element according to the invention is shown.

[0049] Figure 7 A cross section through a variant of a housing part of an assembly or device according to the invention is shown.

[0050] Figure 8 A cross section through the device according to the invention is shown perpendicular to the clamping plane.

[0051] Fig. 9 A top view of a spring element according to the invention is shown.

[0052] Fig.10 A top view of a variant of a housing part of an assembly or device according to the invention is shown.

[0053] Fig.11 A cross section perpendicular to the clamping plane of an exemplary embodiment of the device according to the invention shows a detail in the region of the second connection seal, which corresponds to Fig. 9 The elastic element and Fig.10 The position of the section line XI of the shell part.

[0054] Fig.12 A cross section perpendicular to the clamping plane of an exemplary embodiment of the device according to the invention shows a detail in the region of the first connection seal, which corresponds to Fig. 9 The elastic element and Fig.10 The position of the section line XII of the shell component.

[0055] The same components shown in several figures have the same reference numerals. DETAILED DESCRIPTION

[0056] The invention relates to an annular elastic element, and an assembly of a pneumatic clamping and / or braking device having the annular elastic element and a pneumatic clamping and / or braking device.

[0057] If the text refers to a device “clamping” or a “clamping device”, a “clamping force” or a “clamping” process, this also includes a device “braking” or a “braking device”, a “braking force” or a “braking” process.

[0058] Figures 1A to 5A as well as Figure 8 A schematic cross section of a clamping device 10 according to the invention is shown, which has a housing 3 comprising two housing parts 3a, 3b and a spring 1 arranged in the housing 3 and comprising at least two annular elastic elements 1a, 1b according to the invention.

[0059] The clamping device 10 according to the present invention comprises: a first elastic element 1a and a second elastic element 1b according to the present invention; a housing 3, which comprises a first housing part 3a having an inner surface and a second housing part 3b having an inner surface, wherein the two housing parts 3a, 3b are arranged opposite to each other and fastened to each other so that the inner surfaces of the two housing parts 3a, 3b jointly define an inner space 13 in the housing 3; one or more clamping elements 8, each clamping element 8 having a clamping surface 7; a spring 1, which is arranged in the inner space 13, comprises a first elastic element 1a and a second elastic element 1b, wherein the first elastic element 1a and the second elastic element 1b are arranged in the inner space 13, so that a first pressure space 4 is formed between the elastic elements 1a, 1b and the inner surfaces of the housing parts 3a, 3b in the inner space 13, wherein: The first pressure space 4 can be vented and can be acted upon by the positive pressure of the pressure medium supplied to the housing 3, wherein the first elastic element 1a is clamped in the inner space 13 with its first side facing the inner surface of the first housing part 3a, and the second elastic element 1b is clamped in the inner space 13 with its first side facing the inner surface of the second housing part 3b; the spring 1 is designed to change the degree of bending of at least one of the spring plates of the two elastic elements 1a, 1b when the first pressure space 4 is vented or positive pressure is applied, so that the device 10 changes between an open state and a closed state, in which the object 5 to be clamped is spaced apart from the one or more clamping surfaces 7, and in the closed state, at least one of the one or more clamping surfaces 7 transmits the clamping and / or braking force to the object 5. The device 10 according to the invention also includes the means mentioned in the introduction, which allow the device to operate reliably in a humid environment. These means will be described in more detail in conjunction with Figures 6 to 12.

[0060] Figure 1A , 1B 4A and 4B respectively show the clamping device 10 in a closed state, wherein the clamping surface 7 of the clamping element 8 contacts the periphery of the object 5. The clamping element 8 is also called a clamping lip. The clamping element 8 can be formed integrally with the other parts of the housing parts 3a, 3b, or can be a component of the housing parts 3a, 3b, which is structurally separated from the other parts.

[0061] The clamping action of the clamping force or the clamping surface 7 on the clamped object 5 occurs in a clamping plane, which is formed by two vectors, and each vector can form the radius of the annular elastic element 1a, 1b or the annular recess 11 (see Figure 5A). The axis 9 can pass through the center point of the ring of the annular component described here and can therefore be referred to as the main axis of the clamping device 10, which extends in a direction perpendicular to the clamping plane. If "inner" and "outer" protrusions, edges or ends are mentioned in this document, the inner edge, inner protrusion or inner end is closer to the axis 9 than the corresponding outer edge, outer protrusion or outer end. The same applies to other components.

[0062] The clamping device 10 can be formed rotationally symmetrically around the main axis 9. The main axis 9 can approximately or exactly pass through the opening ( Figure 5B The opening 14 in the Figure 1A , 4A In the embodiment, the object 5 to be clamped, for example the axis of rotation of a machine or a workbench, is placed in the opening 14, and the clamping force of the clamping device is directed radially inwards in the clamping plane toward the main axis 9 (perpendicular to the main axis 9). Figure 1B , 4B In the embodiment, the object 5 to be clamped is placed outside the clamping device 10, and the clamping force of the clamping device is directed radially outwards away from the main axis 9 (perpendicular to the main axis 9) in the clamping plane.

[0063] exist Figure 1A , 2A , 3A, 4A, the clamping element 8 is located between the spring 1 and the opening 14 or the spindle 9. On the other hand, in Figure 1B , 2B , 3B, 4B, the object 5 to be clamped at least partially surrounds the clamping device 10, so that the clamping element 8 is located between the object 5 and the opening 14 or the spindle 9. Figure 1B , 2B , 3B, 4B, a component can be introduced into the opening 14 to at least partially fill the opening 14, thereby replacing the object 5 to be clamped, through which component the spindle 9 extends.

[0064] exist Figures 1A to 5A In the embodiment, the spring 1 is clamped on two contact surfaces ( Figure 5C and 5D 101 and 102) and extends between the two contact surfaces. Figures 1A to 2BIn the pressure-free initial state of the device 10 in FIG. 1 , the spring 1 may be slightly bent so that it is firmly fixed in the housing 3 in this state, and the same applies to any other state of the device 10, the degree of bending of the spring 1 depending on the state the device 10 is in. If the device 10 is in a state in which the spring 1 is bent (e.g., bent to a greater extent than in the pressure-free initial state, such as in an open state), the spring 1 is pressed against a radial contact surface, and the exhaust of the internal pressure chamber 2 of the spring 1 and the exhaust of the external pressure chamber 4 may cause the spring 1 to at least partially relax, the distance between the two radial contact surfaces to slightly increase, so that the housing 3 is elastically deformed in the region of the clamping element 8 or the clamping surface 7, and the clamping surface 7 thereby contacts the object 5 and presses against the object 5 with a (predetermined) clamping force, so as to firmly clamp the object 5. The object 5 is firmly clamped, and the clamping device 10 is in a closed state, such as Figure 1A and 1B In the closed state of the device 10 , the spring 1 can still be slightly bent even after partial relaxation, so that it is firmly fixed in the housing 3 in this state.

[0065] In this case, the clamping element 8 can be an elastic element, for example a spring fork, which in the unstressed initial state of the device 10 is brought from the relaxed initial position of the elastic element into the tensioned position by the spring force of the (slightly) bent spring 1, for example by bending the spring fork 8, until an equilibrium is reached between the restoring force of the elastic element 8 and the spring force of the spring 1 in the unstressed initial state. In this equilibrium, the clamping surface 7 can be pressed against the object 5.

[0066] By additionally filling the external pressure chamber 4 with compressed air (with a pressure of, for example, 4 Pa ​​or 6 Pa) in the closed state, the clamping force can be selectively increased by a predetermined value. Figure 1A , 1B 4 is indicated by an optional additional compressed air pump (booster) 6 and a shading (compressed air) in the external pressure chamber 4. The external pressure chamber 4 can be connected via an opening in the housing 3 to an air connection I (also called "closed"), to which the compressed air pump 6 can be connected.

[0067] Thus, the device 10 can be controlled, for example, in such a way as to vary between a braking action of the acted-on object 5 (in the pressure-free state) and a complete clamping of the object (in the event of an injection of sufficient pressure).

[0068] Although two pressure chambers 2 , 4 are shown and described here by way of example, the clamping device 10 may also be operated with a single pressure chamber, which may be, for example, the inner pressure chamber 2 or the outer pressure chamber 4 .

[0069] Figure 2A and 2B Shows Figure 1A and1B The clamping devices 10 in the housing 3 are all in an open state, wherein the clamping surface 7 does not contact the periphery of the object 5 or is spaced apart from the periphery of the object. The internal pressure chamber 2 can be connected to an air connection I (also called "open") via an opening in the housing 3, to which a compressed air pump 6 can be connected.

[0070] By filling the inner pressure chamber 2 with compressed air (with a pressure of, for example, 4 Pa ​​or 6 Pa) through the compressed air pump 6 and exhausting the outer pressure chamber 4, the spring 1 can be bent or stretched to the same pressure as the inner pressure chamber 2. Figure 1A , 1B The clamping device 10 is in the open state, and the spring 1 or the distance between the two contact surfaces is radially shortened. The clamping surface 7 is lifted off the object 5 to release the clamping. The object 5 is free to move (e.g., can rotate about the axis 9 or move linearly along the axis 9), and the clamping device 10 is in the open state.

[0071] The device 10 can be switched back and forth between a closed state and an open state.

[0072] The pneumatic clamp 10 has a series of advantages compared with the hydraulic clamp.

[0073] By using a combination of elastic components (in this case a spring 1, elastic elements 1a, 1b and compressed air), for example, very short reaction times can be achieved when switching between an open and closed state and simultaneously achieving a safe clamping of an object 5. The spring 1 can preferably be formed in the form of a plate, as shown in more detail in FIG. 5, wherein two elastic elements 1a, 1b resting against each other form a spring 1 and an internal pressure chamber 2 of the spring 1 between the plates 1a, 1b. As shown in FIG. 5, the spring plates 1a, 1b can also be annular and can optionally additionally have radial grooves so that their inner diameter can be changed with particularly low forces. The elastic elements 1a, 1b can be coated with rubber at least in the groove area to produce the required tightness for compressed air. The elastic elements 1a, 1b are usually formed integrally to be pressure-resistant and elastically bendable and are arranged in the housing 3 of the clamping device 10, so that an internal pressure chamber 2 is formed between the elastic elements 1a, 1b inside the spring 1 and an external pressure chamber 4 is formed between each elastic element 1a, 1b and the housing 3 or housing parts 3a, 3b of the clamping device 10. Figure 5 shows the Figure 1A and 2A A similar three-dimensional view of a clamping device 10 .

[0074] By introducing or filling the external pressure chamber 4 with compressed air and exhausting the internal pressure chamber 2, as Figure 1AAs shown, the spring 1 is at least partially tensioned and generates a clamping force on the object 5 to be clamped, in particular on the periphery of the shaft 5. Thus, in the event of an energy or pressure failure, the object 5 is clamped or the shaft 5 is braked immediately, thereby providing a safe clamping. Depending on the size, such a pneumatic clamp 10 can achieve a holding moment of several hundred nanometers or even up to several thousand nanometers, which can be further increased by additionally filling the external pressure chamber 4 with compressed air, such as Figure 1A As shown, compressed air can be charged by a pressure pump 6 (booster). Here, compressed air with a pressure of several Pa (e.g. 4 Pa ​​or 6 Pa) is sufficient to provide a holding torque that is several times greater than that achieved without a booster. Here, use is made of the fact that when the clamp 10 is switched between the open and closed state, a small transverse bending of the spring plates 1a, 1b (perpendicular to their longitudinal axis) generates a large spring force, which can be used to clamp or release the prestressed clamping device 10. As a result, a fast-rotating machine shaft 5 can also be reliably clamped and released.

[0075] The cost and assembly of pneumatic materials are also lower than hydraulic materials, and since compressed air is used, no additional expenses are required to ensure the cleanliness of the system. This pneumatic clamp also has a smaller overall size, because the lateral bending and longitudinal extension (variation) of the spring are smaller, so the volume of the pressure chamber is small, which is sufficient to apply the required clamping force.

[0076] For pneumatic clamps, in principle, they are divided into Figures 1A to 2B The passive clamping device 10 and Figures 3A to 4B The active clamping device 10 is shown.

[0077] In the initial state without pressure, the spring 1 can be bent to different degrees (laterally) and thus can be shortened radially to different degrees. The inner side of the housing 3 can adapt to the bending of the elastic elements 1a, 1b or limit it. The corresponding stop surface of the elastic elements 1a, 1b can be formed by, for example, the inner wall of the housing. The inner wall of the housing can be formed to complement (for example, concavely) the bending (for example, convexly) of the elastic elements 1a, 1b.

[0078] For a passive clamping device 10, in the unstressed initial state, the spring 1 is usually slightly elastically bent (e.g. convexly) or prestressed, and the clamping device 10 can be closed ( Figure 1A , 1B The clamping device 10 can be opened only by applying a force from the inside by filling the internal pressure chamber 2 with compressed air ( Figure 2A , 2B ). In most cases, the spring 1 is slightly bent in the initial state without pressure, so that in the case of clamping or pressure drop, the spring force generated by the energy stored in the spring 1 is transmitted to the object 5 to be clamped as a clamping force to clamp the object 5.

[0079] In the case of the active clamping device 10, in the initial state without pressure ( Figure 3A , 3B ), the spring 1 bends laterally outwards to a greater extent than in a passive clamping device, in particular to a greater extent of protrusion, so that the distance between the two radial contact surfaces is shortened and the clamping device 10 opens. The clamping force is not applied to the object 5 via the clamping surface 7. Since the clamping surface 7 does not contact the object 5 or is spaced from the object 5, the object is free.

[0080] Due to the plastic deformation of the elastic elements 1a, 1b, the spring 1 can bend laterally outwards to a greater extent in the unpressurized initial state, so that a greater radial shortening can be achieved in the same housing 3 than in the case of a passive clamping device. This smaller radial extension of the elastic elements 1a, 1b in the unpressurized initial state can result in the clamping device 10 being in an open state in the unpressurized initial state. Even in the case of plastic deformation, the elastic elements 1a, 1b will bend elastically and press against the contact surface, thereby fixing the spring in the housing. The inner space or recess of the housing can accommodate the greater degree of bending caused by the plastic deformation in the initial state.

[0081] In this case, the clamping force must be actively introduced from the outside, such as Figure 4A and 4B As shown, in order to convert the clamp to the closed state. At this time, compressed air is introduced into the external pressure chamber 4 by the compressed air pump 6, so that the compressed air from the outside is applied to the spring 1, so that the spring 1 is actively relaxed, the curvature of the spring 1 is reduced, the distance between the two contact surfaces is increased, and the housing 3 is elastically deformed in the area of ​​the clamping element 8 or the clamping surface 7, so that the clamping surface 7 contacts the object 5 and generates a clamping force on the object 5, thereby clamping the object 5 fixedly. The active clamping device 10 is in the closed state.

[0082] Thus, depending on the area of ​​application and the prescribed safety regulations, an active or passive clamping system 10 can be used. If a safe clamping is primarily required, a passive clamping device is usually used. With such a pneumatic passive clamping system, a predetermined clamping force can be generated and applied to the object 5 to be clamped even in a pressure-free state when the device is installed in an overall device. By charging with an overpressure or underpressure, the force transmitted to the object can be increased, reduced or completely eliminated, thus opening up a wide range of applications. On the other hand, if the clamping device is mainly used to perform intentional work operations, such as changing tools, an active clamping device is usually used.

[0083] like Figure 5AAs shown, the housing 3 of the clamping device 10 according to the present invention comprises two housing parts 3a, 3b, which are fastened to each other by fastening means (e.g. screws) and are installed so that in the installed state, the two housing parts 3a, 3b define an inner space 13 between the two housing parts 3a, 3b in the housing 3, wherein the spring 1 according to the present invention together with its annular elastic elements 1a, 1b are arranged in the housing 3. The housing parts 3a, 3b each define a recess 11, which is also annular and is used to accommodate the annular elastic elements 1a, 1b, as shown in FIG. Figures 5A to 5D At least a portion of the first contact surface 101 of the housing component may extend along a radial direction R (substantially) perpendicular to the annular recess 11 , and / or a portion of the second contact surface 102 of the housing component may extend along a radial direction R (substantially) perpendicular to the annular recess 11 .

[0084] Opening 14( Figure 5B ) passes through the center of the housing 3, and the object 5 to be clamped (for example a shaft) can be inserted into the opening 14. The housing can extend 360° around the opening and at least partially surround the object 5 in at least one plane, called the clamping plane. The central spindle 9 of the clamping device passes through the center of the opening 14 and is perpendicular to the clamping plane. Figure 1A , 2A In the clamping devices of , 3A, 4A, and 5A, the spindle 9 passes through the center of the shaft along the longitudinal axis of the shaft.

[0085] One or more clamping surfaces 7 are provided along the periphery of the housing 3 or the opening 14, and when the housing 3 is elastically deformed in the region of the clamping element 8 or the clamping surface 7, the clamping surface 7 generates a clamping force on the periphery of the object 5, thereby clamping the object 5. In order for the clamping device 10 to be effectively opened and closed relative to the object 5 to be clamped without damaging the object 5, the clamping force is preferably distributed symmetrically along the clamping surface 7 or the periphery of the object 5. An asymmetrical distribution of the clamping force may cause damage to the object 5. Preferably, one or both of the contact surfaces 101, 102 are formed to be circular in the clamping plane. Preferably, the clamping surface 7 is formed to be circular in the clamping plane. The clamping element 8 can be formed in an annular shape. All annular or circular parts described herein can be centered on the intersection of the main axis 9 and the clamping plane (e.g., the center of the opening 14), respectively, individually or in combination.

[0086] Figure 5B An embodiment of an assembly according to the invention is shown. The assembly comprises an annular elastic element 1a according to the invention and a housing part (here Figure 5A The upper housing part 3a in the embodiment of the present invention has an annular recess 11 for clamping the annular elastic element 1a, and the housing part 3a has an inner surface defined by the recess 11 (see Figure 7105 in). The annular recess 11 preferably defines an annular opening 12 in the housing part, the annular opening being formed between a first annular edge 12a of the housing part and a second annular edge 12b of the housing part. The elastic element 1a can be clamped between the first annular edge 12a and the second annular edge 12b.

[0087] When the elastic element 1a is provided with the first side (see Figure 6C When the elastic element 1a is inserted into the recess 11 through the opening 12 and clamped in the recess 11 in the form of the inner surface 16c) in the inner surface, a first pressure space 4 is formed between the inner surface and the elastic element 1a. In this case, the elastic element according to the present invention has the means mentioned in the introduction, which allows the assembly to be used reliably in a humid environment. These means will be described in more detail in conjunction with Figures 6 to 12.

[0088] like Figure 5C and 5D As shown, the elastic element 1a of the spring 1 extends from the first contact surface 101 in the housing part 3a to the second contact surface 102 in the housing part 3a and can contact the latter. In this case, from the center point of the opening 14, the first contact surface 101 is radially arranged at a position further outside than the second contact surface 102.

[0089] Figure 5C Shows Figure 5B A cross section of the housing part 3 a is shown, in which the upper plate 1 a of the spring 1 abuts against the first contact surface 101 and preferably contacts the latter. Figure 5D Shows Figure 5B The cross section of the housing part 3a shown, wherein the upper plate 1a of the spring 1 abuts against the second contact surface 102 and preferably contacts the latter. However, one or more other components can also be arranged radially between the elastic element 1a and one or more contact surfaces 101, 102, respectively, through which the elastic element 1a exerts its spring force on the contact surfaces 101, 102.

[0090] like Figure 5B , 5D As shown, the elastic element 1a is clamped between the inner side faces of the housing part 3a in the recess 11. During the mounting process, each plate of the spring 1 is inserted into the recess 11 of the corresponding housing part through the opening 12 in the direction of the main axis 9 of the clamping device 10, and the insertion is carried out along the inner surface of the housing part 3a until the corresponding plate abuts against the stops 112, 122 at the end of each of the two contact surfaces 101, 102, and thus cannot be inserted further into the recess 11. Since the extension of the elastic element 1a in the radial direction of the clamping plane or the annular recess is greater than the extension of the inner space defined by the housing part, the plate 1a can be bent or prestressed in the initial state without pressure.

[0091] exist Figures 6A to 6C In the figures, embodiments of an arrangement for use of an elastic element according to the invention in a humid environment and an alternative arrangement for use in a vacuum or clean room are shown in more detail.

[0092] Fig. 6A An annular elastic element 1a, 1b for a clamping and / or braking device 10 according to the present invention is shown, and the annular elastic element 1a, 1b includes: an annular spring plate 16, which has a first annular side surface 16c and a second annular side surface 16d; a first sealing element 17, which is arranged on the first side surface 16c of the spring plate 16; a second sealing element 15, which is arranged on the second side surface 16d of the spring plate 16, and the second sealing element 15 forms an inner protrusion 15a in the area of ​​the inner edge 16a of the annular spring plate 16 and forms an outer protrusion 15b in the area of ​​the outer edge 16b of the annular spring plate 16, and the first sealing element 17 forms a first protrusion 17a.

[0093] Figure 6B and 6C It is shown that the first protrusion 17a is formed between the inner edge 16a and the outer edge 16b of the annular spring plate 16; here, as an example, the first protrusion 17a is formed in the region of the inner edge 16a or in the region of the outer edge 16b of the annular spring plate 16.

[0094] Fig. 6A and 6B It is further shown that the first sealing element 17 forms an optional second projection 17 b on the first side 16 c , the second projection 17 b being preferably formed in the region of the outer edge 16 b of the annular spring plate 16 .

[0095] Each of the projections 15a, 15b, 17a, 17b of the first and / or second sealing elements 15, 17 may be at least partially annular and extend annularly around the axis 9. Each of the projections 15a, 15b, 17a, 17b of the first and / or second sealing elements 15, 17 may be fixed to the spring plate 16, preferably vulcanized to the spring plate 16, or be arranged to be removable from the spring plate 16, preferably as an O-ring.

[0096] Fig. 6A and Figure 6C It is also shown that the longitudinal axis of the first projection 17 a of the first sealing element 17 is (substantially) perpendicular to the first side surface 16 c of the spring plate 16 .

[0097] like Figure 6B and 6CAs shown, the inner protrusion 15a and / or the outer protrusion 15b of the second sealing element 15 respectively have at least partially flat flat surfaces 15e, 15f, which serve as bearing surfaces, for example, relative to the (inner) housing wall or another elastic element, thereby defining and sealing the second pressure chamber 2. These figures also show that the inner protrusion 15a and / or the outer protrusion 15b of the second sealing element 15 respectively at least partially form radially extending ridges 15c, 15d.

[0098] like Figure 6B As shown, the ridge 15d of the outer protrusion 15b of the second seal 15 preferably extends radially outward, preferably radially outward beyond the outer edge 16a of the spring plate 16. The ridge 15d is preferably adjacent to or close to the flat surface 15f. The flat surface 15f is preferably merged into the ridge 15d.

[0099] like Figure 6C As shown, the ridge 15c of the inner protrusion 15a of the second seal 15 preferably extends radially inward, preferably radially inward beyond the inner edge 16a of the spring plate 16. The ridge 15c is preferably adjacent to or close to the flat surface 15e. The flat surface 15e is preferably merged into the ridge 15c.

[0100] The first sealing element 17 and / or the second sealing element 15 can be made of elastic material alone or both, preferably rubber or other suitable materials, which are fixed (for example, vulcanized) on the spring plate 16 .

[0101] Figure 7 The housing parts 3a, 3b of the component or device according to the invention are shown, wherein the housing parts 3a, 3b are Figure 5B In addition to the inner surface 105, the recess 11, the first contact surface 101 and the second contact surface 102, the housing part also has an advantageous and preferred adaptability.

[0102] When the elastic element 1a, 1b is clamped in the recess 11 with the first side 16c facing the inner surface 105, the first protrusion 17a of the first sealing element 17 will form a preferred sealing contact with a first part of the inner surface 105 of the housing part 3a, 3b. The first part can have a recess or depression 106 on the housing part 3a, 3b. Preferably, the surface shapes of the first protrusion 17a and the first part 106 are at least partially complementary to form a particularly effective sealing contact. When the elastic element 1a, 1b is clamped in the recess 11 with the first side 16c facing the inner surface 105, the second protrusion 17b of the first sealing element 17 will form a preferred sealing contact with another part of the inner surface 105 of the housing part 3a, 3b. The other part can have a recess or depression 107 on the housing part 3a, 3b. Preferably, the surface shapes of the second protrusion 17b and the part 107 are at least partially complementary to form a particularly effective sealing contact. A fluid connection between the first pressure chamber 4 and the housing environment, in particular in the transition area between two adjacent housing parts 3 a , 3 b , is inhibited or completely prevented by each of the two projections 17 a , 17 b .

[0103] The shell parts 3a, 3b may include an annular recess 11 for clamping the annular elastic elements 1a, 1b, wherein the recess 11 forms a first annular edge 12a and a second annular edge 12b of the annular opening 12 of the shell parts 3a, 3b, and the annular recess 11 defines an inner surface 105 of the shell parts 3a, 3b between the first annular edge 12a and the second annular edge 12b, wherein the inner surface 105 forms a first bevel 103 (or a long chamfer) in the region of the first annular edge 12a, and the inner surface 105 forms a second bevel 104 (or a long chamfer) in the region of the second annular edge 12b, wherein the bevels 103, 104 are oriented so that the annular opening 12 increases towards the first and second edges 12a, 12b.

[0104] The inner surface 105 can form a first contact surface 101 and a second contact surface 102, which are formed to clamp the spring plate 16 of the elastic element 1a, 1b according to the present invention therebetween, wherein the first bevel 103 is arranged between the first contact surface 101 and the first annular edge 12a, and wherein the second bevel 104 is arranged between the second contact surface 102 and the second annular edge 12a. When the elastic element 1a, 1b is clamped in the recess 11 with the first side surface 16c facing the inner surface 105, the ridges 15c, 15d are preferably in sealing contact with the bevels 103, 104.

[0105] like Figure 7As shown, the first contact surface 101 can form a first bevel 103 (or a long chamfer) or merge therewith, and / or the second contact surface 102 can form a second bevel 104 (or a long chamfer) or merge therewith, wherein the bevels 103, 104 are each preferably oriented so that the annular opening 12 or the recess 11 increases toward the first and second edges 12a, 12b (see Figure 7 and Figure 5B ). Each of these inclined surfaces 103, 104 largely prevents the force that causes the clamping element 8 to bend from being transmitted to the clamping element 8 by the second sealing element 15, and instead mainly transmits the force for clamping or braking the object 5 to the clamping element 8 and the clamping surface 7 by the spring plate 16 or the inner edge 16a. This protects the second sealing element 15 and makes the process of opening and closing the device more reliable.

[0106] In order to ensure additional preferred tightness when used in a humid environment and / or a vacuum environment or a clean room, ridges 15c, 15d are provided here, which fill the space at the bevel and contact the bevels 103, 104. The ridges 15c, 15d facilitate sealing of the gap in the transition region of the first pressure chamber 4 relative to the clamping elements 8 of the adjacent housing parts 3a, 3b. The ridges at the housing edge with the bevels 103, 104 facilitate the fact that during operation of the first pressure chamber 4, hardly any medium or no medium flows in or out through the housing edge.

[0107] The flat surfaces 15e, 15f first increase the resistance to the penetration of the pressure medium (especially gas) when the pressure medium is applied to the second pressure chamber 2. The flat surfaces 15e, 15f reduce or prevent the overflow of the medium between the first pressure chamber 4 and the second pressure chamber 2. The flat surfaces 15f and 15e also support the displacement of the protuberances 15c, 15d relative to the inclined surfaces 103, 104 on the housing, thereby supporting the effect of the above-mentioned protuberances. This support is particularly evident when the flat surface 15e or 15f is adjacent to and / or merges into the relevant protuberance 15c or 15d, such as in combination with Figure 6B and 6C The flat surface and the respectively associated elevations form a combination of features that act synergistically but can exist separately. With regard to vacuum operation, each of the sealing elements 17a and 17b should be considered as an additional barrier and supports the sealing of the first pressure chamber 4 relative to the environment.

[0108] The housing parts 3a, 3b may have a preferably circular groove or nut 110 for accommodating an O-ring. The groove or nut 110 may preferably completely surround the housing parts 3a, 3b along the circumference of the housing parts between the outer edge 100b of the housing parts and the first contact surface 101 or the recess 11, or in the region of the first annular edge 12a. As an alternative or in addition, the groove or nut 110 may preferably completely surround the housing parts 3a, 3b along the circumference of the housing parts in the region of the second annular edge 12a, or between the inner edge 100a of the housing parts and the second contact surface 102 or the recess 11.

[0109] The housing part is preferably made of a low-corrosion material.

[0110] Figure 8 The clamping and / or braking device 10 of the present invention is shown. As an example, Figure 8 A device 10 with an inwardly directed clamping action is shown in FIG. Figure 1A , 2A and 5A.

[0111] exist Figure 8 In the embodiment, the first protrusion 17a of the first sealing element 17 of at least one elastic element 1a, 1b forms a preferably sealing contact with a first portion (e.g. 106) of the inner surface 105 of one of the housing parts 3a, 3b, thereby at least inhibiting the flow connection between the region of the first pressure chamber 4 and the transition zone between the housing parts 3a, 3b. This contact can at least partially seal the medium, preferably a fluid or liquid, entering the housing 3 from the outside of the device 10 through the gap of the transition zone of the housing parts 3a, 3b or the clamping element 8.

[0112] Figure 8 This area of ​​the first pressure chamber 4 is arranged between a first protrusion 17a of a first sealing element 17 of at least one elastic element 1a, 1b and an outer edge 16b of a spring plate 16 of at least one elastic element 1a, 1b or a second protrusion 17b of a first sealing element 17 of at least one elastic element.

[0113] The optional second protrusion 17b of the first sealing element 17 of at least one elastic element 1a, 1b contacts a second portion (e.g. 107) of the inner surface 105 of the housing part 3a, 3b, wherein the second portion of the inner surface 105 is preferably located between the first contact surface 101 and the second contact surface 102 of the housing part 3a, 3b. The protrusion can also reduce the fluid connection of the first pressure chamber 4 with the outer area of ​​the clamping element 8. The inner surface 105 can have one or more notches or recesses 106, 107, wherein the shape of the notches or recesses 106, 107 is preferably complementary to the surface of the protrusion 17a, 17b with which it contacts.

[0114] From Figure 6, Figure 7 and Figure 8 It can be seen from the combination that the first contact surface 101 of each shell part 3a, 3b forms a first inclined surface 103, and the second contact surface 102 of each shell part 3a, 3b forms a second inclined surface 104, wherein the bulge 15c of the inner protrusion 15a of the second sealing element 15 of the first elastic element contacts the second inclined surface 104 of the second contact surface 102 of the shell parts 3a, 3b, and the bulge 15d of the outer protrusion 15b of the second sealing element 15 of the first elastic element contacts the first inclined surface 103 of the first contact surface 101 of the shell parts 3a, 3b.

[0115] The first elastic element 1a and the second elastic element 1b are clamped in Figure 8 In the internal space 13, the flat surfaces 15e of the inner protrusions 15a of the second sealing elements 15 of the two elastic elements 1a, 1b are in contact with each other and / or the flat surfaces 15f of the outer protrusions 15b of the second sealing elements 15 of the two elastic elements 1a, 1b are in contact with each other, so as to define the second pressure chamber 2 and seal it, in particular, during filling with pressure medium.

[0116] Fig. 9 An exemplary embodiment of a spring element 1 a , 1 b according to the invention is shown which has a first connection seal 30 and / or a second connection seal 20 .

[0117] The annular spring plate 16 may be disposed between a portion of the second connection seal 20 and a portion of the first connection seal 30. The first connection seal 30 and the second connection seal 20 may be disposed at opposite portions of the inner edge 16a or the outer edge 16b of the annular spring plate 16, respectively.

[0118] The first connection seal 30 and / or the second connection seal 20 may each be made of an elastic material, preferably rubber.

[0119] The first connection seal 30 can be arranged at least partially radially inwardly or outwardly, offset from the inner edge 16a and / or the outer edge 16b of the spring plate 16 of the elastic element 1a, 1b (see Fig. 9 ). The first connection seal 30 may be part of the first sealing element 17 and / or the second sealing element 15. The first connection seal 30 may extend beyond the inner edge 16a or the outer edge 16b in the radial direction (see Fig. 9 ).

[0120] The second connection seal 20 can be arranged at least partially radially inwardly or outwardly, offset from the inner edge 16a and / or the outer edge 16b of the spring plate 16 of the elastic element 1a, 1b (see Fig. 9). The second connection seal 20 may be part of the first sealing element 17 and / or the second sealing element 15. The second connection seal 20 may extend beyond the inner edge 16a or the outer edge 16b in the radial direction (see Fig. 9 ).

[0121] Fig.11 and 12 A detail of a cross section of a device 10 according to the invention is shown in each case. Fig.11 and 12 The left and right halves show the installation of Fig.10 The housing parts 3a, 3b are Fig. 9 Cross-section of the elastic element 1a, 1b of the present invention. Here, the elastic element 1a, 1b is clamped in the recess 11 between the inner edge 100a (or the clamping element 8 with the clamping surface 7) and the outer edge 100b of the housing part 3a, 3b, so that the first seal 30 enters and contacts the area of ​​the housing part 3a, 3b for the first port I, and the second port seal 20 enters and contacts the area of ​​the housing part 3, 3b for the second port II. This process is carried out twice, so that two components according to the present invention are produced, which are then fastened to each other, as shown in FIG. Fig.11 and Fig.12 shown.

[0122] Fig.11 The cross-sectional detail of the device 10 shown in FIG. 1 corresponds in its position to Fig. 9 and 10 The cross section XI shown in the figure passes through the elastic elements 1a, 1b and the housing parts 3a, 3b in the area of ​​the second connection seal 20. The second port seal 20 has an edge along the second port opening, which is used to seal the second port II of the clamping and / or braking device 10, and the second port II is used to apply the pressure medium to the second pressure chamber 2 of the clamping and / or braking device 10. The second port seal 20 forms a port protrusion 21 along the edge of the second port opening, and the port protrusion 21 at least partially and preferably completely surrounds the second port opening.

[0123] The port protrusion 21 of the second port seal 20 forms an undercut 22 at least partially at the edge of the second port opening in order to strengthen the seal, in particular to prevent the pressure medium from escaping into the environment. The undercut 22 of the second port seal 20 reduces the risk of the second port seal 20 lifting from the flat housing surface, in particular when pressure is applied to the first pressure chamber 4. In addition, the undercut 22 avoids the use of sealants (adhesives) at this location. Such sealants may have a negative impact on vacuum or clean rooms.

[0124] The second port seal 20 may form a portion of the inner protrusion 15a or the outer protrusion 15b of the second sealing element 15. The portion of the protrusion of the second sealing element 15 formed by the second port seal 20 may be disposed on a side of the second port opening 20 that faces away from and / or is opposite to a side of the second port seal 20 that forms the port protrusion 21.

[0125] Fig.12 The cross-sectional detail of the device 10 shown in FIG. 1 corresponds in its position to Fig. 9 and 10 , which passes through the elastic elements 1a, 1b and the housing parts 3a, 3b in the region of the first port seal 30. The first port seal 30 has an edge along the first port opening, which is used to seal the first port I of the clamping and / or braking device 10, and the first port I is used to apply pressure medium to the first pressure chamber 4 of the clamping and / or braking device 10. The edge of the first port seal 30 at least partially and preferably completely surrounds the first port opening.

[0126] The first port seal 30 may include an O-ring around the first port opening. The bulge 15d of the bulge 15b with the bevel 103 and the first port seal 30 at the port 1 ensure that no fluid flows in or out through the housing edge during the application of the first pressure chamber 4. In addition, undesirable sealing compounds (adhesives) between the housing halves can be omitted. Such sealing compounds may have a negative impact on vacuum or clean rooms.

[0127] By means of the measures described herein, both individually and in combination, a clamp can be provided that can reliably operate in a humid environment and, moreover, can optionally operate in a vacuum or clean room without thereby adversely affecting the opening and closing dynamics of the clamp.

[0128] The preferred embodiments of the subject matter claimed in the appended claims are described in the specification and drawings. The optional features disclosed in the above specification, claims and drawings can be used in various embodiments thereof, alone or in any combination, in embodiments of the subject matter claimed in the appended claims.

[0129] The above aspects and embodiments can be combined to provide other embodiments. These and other changes can be made to the embodiments according to the above detailed description. In general, the terms used in the following claims should not be interpreted as limiting the claims to the specific aspects and embodiments disclosed in the specification and claims, but should be interpreted to include all possible embodiments and the full range of equivalents to which these claims are entitled.

Claims

1. An annular elastic element (1a, 1b) for a clamping and / or braking device (10), the annular elastic element (1a, 1b) comprising: an annular spring plate (16), the annular spring plate (16) having a first annular side surface (16c) and a second annular side surface (16d); a first sealing element (17), the first sealing element (17) being arranged on the first annular side surface (16c) of the annular spring plate (16); a second sealing element (15), the second sealing element (15) being arranged on the second annular side surface (16d) of the annular spring plate (16), the second sealing element (15) forming an inner protrusion (15a) in the region of an inner edge (16a) of the annular spring plate (16) and an outer protrusion (15b) in the region of an outer edge (16b) of the annular spring plate (16); The invention is characterized in that the first sealing element (17) forms a first protrusion (17a).

2. The annular elastic element (1a, 1b) according to claim 1, characterized in that The first protrusion (17a) is formed between the inner edge and the outer edge of the annular spring plate (16), and preferably, the first protrusion (17a) is formed in the region of the inner edge (16a) or the outer edge (16b) of the annular spring plate (16).

3. The annular elastic element (1a, 1b) according to claim 1 or 2, characterized in that: The inner protrusion and / or the outer protrusion of the second sealing element (15) respectively protrudes from the second annular side surface (16d) and is preferably formed on the second annular side surface (16d), and / or the first protrusion (17a) of the first sealing element (17) protrudes from the first annular side surface (16c) and is preferably formed on the first annular side surface (16c).

4. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The first sealing element (17) also preferably forms a second protrusion (17b) on the first annular side surface (16c) in the region of the outer edge (16b) of the annular spring plate (16), and the second protrusion (17b) preferably protrudes beyond the first annular side surface (16c).

5. The annular elastic element (1a, 1b) according to claim 1, characterized in that: Each protrusion of the first sealing element (17) and / or the second sealing element (15) is at least partially annular.

6. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The first protrusion (17a) and / or the second protrusion (17b) of the first sealing element (17) has an at least partially circular surface.

7. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that Each projection of the first sealing element and / or the second sealing element (15) is respectively fixed to the annular spring plate (16), preferably vulcanized to the annular spring plate (16), or is arranged to be detachable from the annular spring plate (16), preferably as an O-ring.

8. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that Each protrusion of the first sealing element (17) and / or the second sealing element (15) extends along a plane that intersects a plane in which the annular spring plate (16) extends in an annular manner.

9. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The first protrusion (17a) of the first sealing element (17) has an at least partially circular surface.

10. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The longitudinal axis of the first projection (17a) of the first sealing element (17) is preferably substantially perpendicular to the first annular side surface (16c) of the annular spring plate (16).

11. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The inner protrusion (15a) and / or the outer protrusion (15b) of the second sealing element (15) each have an at least partially flat surface.

12. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The inner protrusion (15a) and / or the outer protrusion (15b) of the second sealing element (15) are each at least partially formed as a bulge (15c, 15d).

13. The annular elastic element (1a, 1b) according to claim 12, characterized in that The ridge (15c) of the inner protrusion (15a) of the second sealing element (15) extends radially inward, preferably extends radially inward beyond the inner edge (16a) of the annular spring plate (16), and / or the ridge (15d) of the outer protrusion (15b) of the second sealing element (15) extends radially outward, preferably extends beyond the outer edge (16b) of the annular spring plate (16).

14. The annular elastic element (1a, 1b) according to claim 12 or 13, characterized in that The ridge (15c) of the inner protrusion (15a) is adjacent to or close to the flat surface (15e) of the inner protrusion (15a), and / or the ridge (15d) of the outer protrusion (15b) is adjacent to or close to the flat surface (15f) of the outer protrusion (15b).

15. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The outer protrusion of the second sealing element (15) is at least partially formed on the second annular side surface (16d) of the annular spring plate (16), and / or the outer protrusion of the second sealing element (15) is at least partially arranged radially outward from the outer edge of the annular spring plate (16), and is preferably arranged outside the second annular side surface (16d) of the annular spring plate (16).

16. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The elastic element (1a, 1b) also includes: a first port seal (30), which defines the edge of a first port opening of the first port seal (30), and the edge is suitable for sealing a first port (I) of the clamping and / or braking device (10), and the first port (I) is used to apply pressure medium to a first pressure chamber (4) of the clamping and / or braking device (10).

17. The annular elastic element (1a, 1b) according to claim 16, characterized in that The edge of the first port seal (30) at least partially and preferably completely surrounds the first port opening.

18. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The annular elastic element (1a, 1b) also includes: a second port seal (20), which defines the edge of the second port opening of the second port seal (20), and the edge is suitable for sealing the second port (II) of the clamping and / or braking device (10), and the second port (II) is used to apply pressure medium to the second pressure chamber (2) of the clamping and / or braking device (10).

19. The annular elastic element (1a, 1b) according to claim 18, characterized in that The second port seal (20) forms a port protrusion (21) along the edge of the second port opening, and the port protrusion (21) at least partially and preferably completely surrounds the second port opening.

20. The annular elastic element (1a, 1b) according to claim 19, characterized in that The port protrusion (21) of the second port seal (20) at least partially forms an undercut (22) at the edge of the second port opening.

21. The annular elastic element (1a, 1b) according to any one of claims 16 to 20, characterized in that: The first port seal (30) and / or the second port seal (20) are / is a part of the first sealing element (17) and / or the second sealing element (15), respectively.

22. The annular elastic element (1a, 1b) according to any one of claims 12 to 21, characterized in that: The flat surface (15e) of the inner protrusion (15a) is merged with the ridge (15c) of the inner protrusion (15a), and / or the flat surface (15f) of the outer protrusion (15b) is merged with the ridge (15d) of the outer protrusion (15b).

23. The annular elastic element (1a, 1b) according to any one of claims 16 to 22, characterized in that: The first port seal (30) is disposed at least partially radially offset from the first annular side surface (16c) and / or the second annular side surface (16d) of the annular spring plate (16).

24. The annular elastic element (1a, 1b) according to any one of claims 18 to 23, characterized in that The second port seal (20) is disposed at least partially radially offset from the first annular side surface (16c) and / or the second annular side surface (16d) of the annular spring plate (16).

25. The annular elastic element (1a, 1b) according to any one of claims 18 to 24, characterized in that The annular spring plate (16) is disposed between a portion of the second port seal (20) and a portion of the first port seal (30), and / or wherein: The first port seal (30) and the second port seal (20) are respectively disposed at opposite portions of the inner edge or the outer edge (16b) of the annular spring plate (16).

26. The annular elastic element (1a, 1b) according to any one of claims 18 to 25, characterized in that The second port seal (20) forms part of the inner protrusion or the outer protrusion (15b) of the second sealing element (15), preferably, wherein the part of the protrusion of the second sealing element (15) is arranged to be at least partially radially offset from the second annular side (16d) of the annular spring plate (16).

27. The annular elastic element (1a, 1b) according to claim 26, characterized in that The portion of the protrusion of the second sealing element (15) formed by the second port seal (20) is arranged on a side of the second port opening (20), which is away from and / or opposite to a side of the second port opening (20) where the port protrusion (21) is formed by the second port seal (20).

28. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The flat surfaces (15e, 15f) are bearing surfaces for sealing the pressure chamber (2).

29. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The first protrusion rises or protrudes from a surface of the first sealing element, and / or the inner protrusion and the outer protrusion rise or protrude from one or more surfaces of the second sealing element.

30. An annular elastic element (1a, 1b) according to any one of the preceding claims, characterized in that The first sealing element is formed or molded integrally with the first protrusion, and / or the second sealing element is formed or molded integrally with the inner protrusion and / or the outer protrusion.

31. An assembly for a clamping and / or braking device (10), comprising: An annular elastic element (1a, 1b) according to any one of the preceding claims; as well as A housing part (3a, 3b), the housing part (3a, 3b) having an annular recess (11) for clamping the annular elastic element (1a, 1b), and the housing part (3a, 3b) having an inner surface (105) defined by the annular recess (11); Wherein, when the annular elastic element (1a, 1b) is clamped and the first annular side surface (16c) faces the inner surface (105) in the annular recess (11), the first protrusion (17a) of the first sealing element (17) is suitable for contacting a first part of the inner surface (105) of the housing part (3a, 3b).

32. The assembly of claim 31, wherein: The annular elastic element (1a, 1b) can be clamped between a first contact surface (101) of the shell component and a second contact surface (102) of the shell component, and wherein the first portion of the inner surface (105) is located between the first contact surface (101) and the second contact surface (102).

33. Assembly according to any one of the preceding claims, characterized in that The annular recess (11) defines an annular opening in the housing component, the annular opening being formed between a first annular edge (12a) of the housing component and a second annular edge (12b) of the housing component.

34. The assembly according to claim 33, characterized in that The annular elastic element (1a, 1b) can be clamped between the first annular edge (12a) and the second annular edge (12b).

35. Assembly according to any one of the preceding claims, characterized in that The contact is preferably in the region of one of the contact surfaces (101, 102) or the annular edges (12a, 12b), sealing against a medium, preferably a fluid, such as a liquid, which has entered the annular recess (11) from outside the housing part (3a, 3b).

36. Assembly according to any one of the preceding claims 33 to 35, characterized in that The first contact surface (101) forms a first bevel (103) and the second contact surface (102) forms a second bevel (104), wherein the bevels (103, 104) are oriented such that the annular opening increases towards the first annular edge (12a) and the second annular edge (12b).

37. Assembly according to any one of the preceding claims, characterised in that The housing parts (3a, 3b) have a preferably circular recess or nut (110) for receiving an O-ring.

38. The assembly according to claim 37, characterized in that The groove or nut (110) preferably completely surrounds the shell part along the periphery of the shell part between the outer edge (100b) of the shell part and the first contact surface (101) or in the region of the first annular edge (12a), and / or preferably completely surrounds the shell part between the inner edge (100a) of the shell part and the second contact surface (102) or in the region of the second annular edge (12b).

39. Assembly according to any one of the preceding claims, characterised in that The housing components are made of low-corrosion material.

40. An assembly according to any one of the preceding claims 32 to 39, wherein When the annular elastic element (1a, 1b) is clamped and the first annular side surface (16c) faces the inner surface (105) in the annular recess (11), the second protrusion (17b) of the first sealing element (17) is suitable for contacting a second part of the inner surface (105) of the housing part, wherein the second part of the inner surface (105) is located between the first contact surface (101) and the second contact surface (102).

41. An assembly according to any one of the preceding claims, characterised in that The first portion and / or the second portion are respectively notches or depressions (106, 107) in the inner surface (105), preferably wherein the notches or depressions (106, 107) are complementary in shape to the surface of the protrusion contacting the notches or depressions.

42. A clamping and / or braking device (10) for clamping and / or braking an object to be clamped and / or braked, the clamping and / or braking device (10) comprising: A first annular elastic element (1a) according to any one of the preceding claims and a second annular elastic element (1b) according to any one of the preceding claims; A housing (3), comprising a first housing component (3a) having an inner surface (105) and a second housing component (3b) having an inner surface (105), wherein the first housing component (3a) and the second housing component (3b) are arranged opposite to each other and fastened to each other, so that the inner surface (105) of the first housing component (3a) and the inner surface (105) of the second housing component (3b) jointly define an internal space within the housing (3); one or more clamping elements (8), each clamping element having a clamping surface (7); A spring (1) is arranged in the inner space, comprising the first annular elastic element (1a, 1b) and the second annular elastic element (1a, 1b), wherein the first annular elastic element and the second annular elastic element are arranged in the inner space so that a first pressure space (4) is formed in the inner space between the first annular elastic element (1a) and the second annular elastic element (1b) and the inner surface (105) of the first housing part and the inner surface (105) of the second housing part, wherein the first pressure space (4) can be vented and can be filled with a pressure medium that can be supplied to the housing at an overpressure, wherein the first annular elastic element (1a, 1b) is clamped, and the first annular side surface (16c) of the first annular elastic element (1a, 1b) faces the inner surface (105) of the first housing component (3a) in the inner space; wherein the second elastic element (1a, 1b) is clamped, and the first annular side surface (16c) of the second annular elastic element (1a, 1b) faces the inner surface (105) of the second housing component (3b) in the inner space; wherein the spring (1) is designed such that when the first pressure space (4) is ventilated or exhausted or when the first pressure space (4) is over-pressurized, the bending of at least one of the annular spring plates (16) of the annular elastic element (1a, 1b) can be changed, so that the device (10) changes between an open state and a closed state, wherein in the open state, the object (5) to be clamped is spaced apart from one or more of the clamping surfaces (7), and in the closed state, at least one of the one or more of the clamping surfaces (7) transmits a clamping and / or braking force to the object (5); and In which, the first protrusion (17a) of the first sealing element (17) of at least one of the annular elastic elements (1a, 1b) is suitable for preferably sealingly contacting a first part of the inner surface (105) of one of the housing parts (3a, 3b), thereby at least suppressing the flow connection between the area of ​​the first pressure space (4) and the transition zone between the housing parts (3a, 3b).

43. The device (10) according to claim 42, characterized in that The contact is, preferably in the region of at least one of the clamping surfaces (7), at least partially sealing off a medium, preferably a fluid or a liquid, which has entered the housing or the first pressure space (4) from the environment of the device through the transition zone between the housing parts.

44. The device (10) according to claim 42 or 43, characterized in that The area of ​​the first pressure space (4) is arranged between the first protrusion (17a) of the first sealing element (17) of at least one of the annular elastic elements and the inner edge or the outer edge of the annular spring plate (16) of at least one of the annular elastic elements or the second protrusion (17b) of the first sealing element (17) of at least one of the annular elastic elements.

45. The device (10) according to claim 42, 43 or 44, characterized in that The first housing part is undercut by the undercut (22) of the port protrusion (21) of the first annular elastic element, and / or the second housing part is undercut by the undercut (22) of the port protrusion (21) of the second annular elastic element.

46. ​​The device (10) according to any of the preceding claims, characterized in that The clamping and / or braking force is achieved by the inner edge (16a) or the outer edge (16b) of at least one of the annular spring plates (16) of the annular elastic element (1a, 1b) being supported on one of the inner surfaces (105) and pressed against the clamping element.

47. The clamping and / or braking device (10) according to any one of the preceding claims, wherein: The first pressure space (4) is arranged outside the spring (1).

48. The clamping and / or braking device (10) according to any one of the preceding claims, wherein: The first annular spring plate (16) of the first annular elastic element is designed to reduce the bending of the first annular spring plate (16) by over-pressure filling the first pressure space, so that when the inner edge or the outer edge of the first annular spring plate (16) is supported on the inner surface (105) of the first housing part, the outer edge or the inner edge of the first annular spring plate (16) is pressed against one of the clamping elements, thereby achieving the transmission of the clamping and / or braking force from the clamping surface of the clamping element to the object (5) to be clamped and / or braked, and the device (10) changes from the open state to the closed state.

49. The clamping and / or braking device (10) according to any one of the preceding claims, wherein: The device (10) is designed such that, by ventilating the first pressure space or by over-pressurizing the first pressure space (4), one of the clamping elements moves away from a portion of the inner surface (105), and / or the bending of at least one of the annular spring plates (16) of the annular elastic element is reduced, thereby changing the device (10) from the open state to the closed state.

50. The clamping and / or braking device (10) according to any one of the preceding claims, wherein: The internal space comprises a second pressure space (2), wherein the second pressure space (2) is arranged inside the spring (1) and between the annular elastic elements, preferably wherein the device (10) is designed such that: by ventilating the second pressure space (2) or by over-pressurizing the second pressure space (2), one of the clamping elements (8) moves toward a part of the inner surface (105), and / or the bending of at least one of the annular spring plates (16) of the annular elastic element increases, thereby changing the device (10) from the closed state to the open state.

51. The clamping and / or braking device (10) according to any one of the preceding claims, wherein: The first annular elastic element (1a, 1b) is clamped between a first contact surface (101) of the first shell component and a second contact surface (102) of the first shell component, and wherein the first portion of the inner surface (105) is located between the first contact surface (101) of the first shell component and the second contact surface (102) of the first shell component.

52. The clamping and / or braking device (10) according to claim 51, characterized in that The first contact surface (101) of the first housing component forms a first inclined surface (103), and the second contact surface (102) of the first housing component forms a second inclined surface (104), wherein the ridges (15c, 15d) of the inner ridge (15a) of the second sealing element (15) of the first annular elastic element contact the second inclined surface of the second contact surface (102) of the first housing component, and wherein the ridges (15c, 15d) of the outer ridge (15b) of the second sealing element (15) of the first annular elastic element contact the first inclined surface of the first contact surface (101) of the first housing component.

53. The clamping and / or braking device (10) according to any one of the preceding claims, wherein: The second annular elastic element (1a, 1b) is clamped between a first contact surface (101) of the second housing component and a second contact surface (102) of the second housing component, and wherein the first portion of the inner surface (105) is located between the first contact surface (101) of the second housing component and the second contact surface (102) of the second housing component.

54. The clamping and / or braking device (10) according to claim 53, characterized in that The first contact surface (101) of the second housing component forms a first inclined surface (103), and the second contact surface (102) of the second housing component forms a second inclined surface (104), wherein the ridges (15c, 15d) of the inner ridge (15a) of the second sealing element (15) of the second annular elastic element contact the second inclined surface of the second contact surface (102) of the second housing component, and wherein the ridges (15c, 15d) of the outer ridge (15b) of the second sealing element (15) of the second annular elastic element contact the first inclined surface of the first contact surface (101) of the second housing component.

55. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that The first annular elastic element (1a, 1b) and the second annular elastic element (1a, 1b) are clamped in the internal space so that the flat surfaces (15e, 15f) of the inner protrusion (15a) of the second sealing element (15) of the annular elastic element contact each other, and / or the flat surfaces (15e, 15f) of the outer protrusion (15b) of the second sealing element of the annular elastic element contact each other, preferably to define the second pressure space (2).

56. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that The second protrusion (17b) of the first sealing element (17) of at least one of the annular elastic elements is suitable for contacting a second portion of the inner surface (105) of the housing component, preferably, wherein the second portion of the inner surface (105) is located between the first contact surface (101) and the second contact surface (102).

57. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that The first portion and / or the second portion are respectively notches or depressions (106, 107) in the inner surface (105), preferably wherein the notches or depressions (106, 107) are complementary in shape to the surface of the protrusion contacting the notches or depressions.

58. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that The first port seal (30) of at least one of the annular elastic elements seals a first port (I) of the clamping and / or braking device (10) for applying pressure medium to the first pressure chamber (4).

59. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that The second port seal (20) of at least one of the annular elastic elements seals a second port (II) of the clamping and / or braking device (10) for applying pressure medium to a second pressure chamber (2) of the clamping and / or braking device (10).

60. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that Each of the housing parts has a preferably circular groove or nut (110), wherein two mutually contacting O-rings are respectively accommodated in the groove or nut (110) between the housing parts.

61. The clamping and / or braking device (10) according to claim 60, characterized in that The groove or nut (110) of each shell component is preferably between the outer edge (100b) of the shell component and the annular recess (11) or the first contact surface (101), completely surrounding the shell component along the periphery of the shell component.

62. The clamping and / or braking device (10) according to any one of the preceding claims, characterized in that Each of the housing components is made of a low-corrosion material.

63. A housing part (3a, 3b) for a clamping and / or braking device (10), the housing part (3a, 3b) comprising: an annular recess (11) for clamping an annular elastic element (1a, 1b) according to any of the preceding claims, wherein the annular recess (11) forms a first annular edge (12a) and a second annular edge (12b) of the annular opening (12) of the housing part (3a, 3b), wherein the annular recess (11) defines an inner surface (105) of the housing part (3a, 3b) between the first annular edge (12a) and the second annular edge (12b), The inner surface (105) forms a first bevel (103) in the region of the first annular edge (12a), and the inner surface (105) forms a second bevel (104) in the region of the second annular edge (12b), wherein the first bevel (103) and the second bevel (104) are oriented so that the annular opening (12) increases toward the first annular edge (12a) and the second annular edge (12b).

64. A housing component according to claim 63, wherein: The inner surface (105) forms a first contact surface (101) and a second contact surface (102) to clamp an annular spring plate (16) of an annular elastic element according to any of the preceding claims between the first contact surface (101) and the second contact surface (102), wherein the first inclined surface (103) is arranged between the first contact surface (101) and the first annular edge (12a), and wherein the second inclined surface (104) is arranged between the second contact surface (101) and the second annular edge (12a).

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