Housing part for a clamping and / or braking device

Abstract

This invention relates to a housing component for a clamping and / or braking device, and a clamping and / or braking device including such a housing component. The housing component includes: a first edge of the housing component and a second edge of the housing component opposite to the first edge; an annular recess disposed between the second edge and the first edge for clamping an annular spring sheet between a first support surface of the housing component defined by the recess and a second support surface of the housing component defined by the recess; a clamping element having a clamping surface designed such that when the spring sheet is clamped in the recess between the first and second support surfaces, a first end of the spring sheet rests on the first support surface, and a second end of the spring sheet presses against the second support surface, thereby transmitting clamping force and / or braking force to the object to be clamped and / or braked; a first housing contact surface extending between the first edge and the first support surface; wherein at least one groove is disposed on the first housing contact surface to receive a sealing device.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a housing part for a clamping and / or braking device and to a clamping and / or braking device having such a housing part. BACKGROUND

[0002] In the production of tools or machine parts, it is necessary to use machining machines, in particular work spindles or other machine tools, to machine material on a workpiece, in particular to machine it into the desired shape, by means of tools fixed on a shaft. The shaft can be a rotary shaft or a pivot of such a machine tool. Furthermore, a worktable rotating by means of the shaft or pivoting can be used to place the tool or the workpiece into the appropriate machining position or to move the workpiece at a corresponding rotational speed. One of the prerequisites for precise and efficient machining is a high rotational speed of the shaft. The task of an emergency or safety system is therefore to stop the rotation of the shaft or to fix it in a fixed position in the event of a malfunction or failure of the system, such as a power failure or a cable breakage.

[0003] Ordinary machining machines have electromagnetic, hydraulic or pneumatic clamping and / or braking devices. These devices have friction linings which can be frictionally connected to the shaft by means of force transmission. This enables the shaft to be fixed at different speeds.

[0004] In hydraulic clamping devices, hydraulic oil acts on a chamber to firmly clamp a rotary shaft or disc. Passive hydraulic clamps are also known. However, such hydraulic clamps have a long reaction time or a short reaction time, which therefore requires a high outlay. Furthermore, hydraulic materials, in particular hydraulic valves and hydraulic pipes, are expensive and require a longer assembly time. Hydraulic oil also leads to additional outlay for keeping the surroundings of the hydraulic clamp clean.

[0005] In pneumatic clamping and / or braking devices, elastic elements, in particular elastic lamellas, are usually acted upon by compressed air and can overcome some of the above-mentioned disadvantages of hydraulic clamping devices.

[0006] EP 1585616 B1 and EP 1651881 B1 describe a pneumatic clamping device having two annular spring lamellas which are introduced into a housing of the clamping device and form a pressure space therein, which can be acted upon by compressed air or inflated and deflated in order to change the degree of bending of the spring lamellas and thus between a closed state of the clamping device, in which an object to be clamped, such as a rotatable shaft, is clamped, and an open state of the clamping device, in which the object is free. However, it has proven in practice that the housing parts of the clamps cannot be sufficiently sealed with respect to one another and with respect to the surroundings and malfunctions or non-faultless operation can occur. SUMMARY

[0007] Based on the prior art mentioned at the beginning, the purpose of this disclosure is to provide a device that enables pneumatic clamping and / or braking devices to provide better sealing.

[0008] This objective is achieved by a housing component having the features of claim 1 and a clamping and / or braking device having the features of claim 17 or 18. Preferred embodiments are described in the dependent claims, the specification, and the drawings.

[0009] According to the solution of the present invention, a housing component for a pneumatic clamping and / or braking device is provided, the housing component comprising: a first edge of the housing component and a second edge of the housing component opposite to the first edge; an annular recess disposed between the second edge and the first edge for clamping an annular spring sheet between a first support surface of the housing component defined by the recess and a second support surface of the housing component defined by the recess; a clamping element having a clamping surface designed such that when the spring sheet is clamped in the recess between the first support surface and the second support surface, a first end of the spring sheet is supported on the first support surface and a second end of the spring sheet is pressed against the second support surface, thereby transmitting clamping force and / or braking force to an object to be clamped and / or braked; a first housing contact surface extending between the first edge and the first support surface; wherein at least one groove for receiving a sealing device is disposed on the first housing contact surface.

[0010] Preferably, the distance between the second support surface and the second edge or clamping surface is less than the distance between the first support surface and the second edge or clamping surface. The second edge may be the edge of a housing component, and a clamping surface may be provided on or at the second edge, or, when installed in a clamping and / or braking device, the second edge may be closer to the object to be clamped or braked and may contact the object in a closed state.

[0011] Preferably, the distance from the first support surface to the first edge is less than the distance from the second support surface to the first edge. The first edge may be the edge of the housing, which, when mounted in a clamping and / or braking device, is away from the object to be clamped or braked, or is further away from the object than the second edge. Holes for fastening housing components to another housing component to form the clamping and / or braking device may be arranged along the first edge.

[0012] According to the present invention, a clamping and / or braking device for clamping and / or braking an object to be clamped and / or braked is further provided, the device comprising: a housing including a first housing component according to the present invention and a second housing component according to the present invention, wherein the two housing components are arranged relative to each other and fastened to each other in such a way that a first housing contact surface of the first housing component faces a first housing contact surface of the second housing component, and the recesses of the first housing component and the recesses of the second housing component together form an internal space within the housing; a spring arranged in the internal space and including a first annular spring plate and a second annular spring plate, wherein the spring plate is arranged in the internal space in such a way as to form at least one pressure space in the internal space, the pressure space being at least partially Defined by spring plates, the pressure spaces can be inflated or deflated and can withstand overpressure from a pressure medium applicable to the housing. A first spring plate is clamped between a first support surface of a first housing component and a second support surface of the first housing component; a second spring plate is clamped between a first support surface of a second housing component and a second support surface of the second housing component; and the spring plates are arranged relative to at least one pressure space such that the curvature of at least one spring plate is changed by inflating or deflating the pressure space or subjecting it to overpressure, and thus the device changes between an open state and a closed state, in which the object is spaced apart from the clamping surfaces, and in the closed state, one or more of the clamping surfaces transmit clamping force and / or braking force to the object. Sealing devices can be accommodated in each housing component in a corresponding recess. In this case, corresponding individual sealing devices (i.e., at least two sealing devices per housing for clamping and / or braking devices) can exist in each housing component, or a single sealing device can be accommodated in a recess of a housing component when the housing components are fastened together.

[0013] The present disclosure overcomes the problem of malfunction-prone operation of clamping and / or braking devices due to leakage between housing components and relative to the surrounding environment. The inventors’ following findings are based on this disclosure.

[0014] In the past, large amounts of sealing compound were locally applied between the housing components of a clamp to create a seal between the housing components and relative to the surrounding environment. However, locally applied sealing compounds are prone to problems, such as not being applied evenly to any desired locations or not being in place at all. The inventors have discovered that inserting a groove into the first housing contact surface to allow contact between one housing component and another, extending between the first edge of the housing component and the first support surface, can reduce the failure rate of clamping and / or braking devices, allowing for the targeted introduction of sealing devices, such as sealing compounds (e.g., adhesives and sealing materials) or elastic materials (e.g., O-rings). Because the groove defines the location where the sealing device can be accommodated, the sealing device can be attached more reliably, thereby achieving a reliable seal between the housing components and relative to the surrounding environment. In particular, the groove enables an improved seal for the pressure space located between each spring plate and the associated housing component, which is prone to leakage. In summary, the groove on the first housing contact surface reduces susceptibility to failure and increases the clamp's operating time. This approach also reduces the amount of sealing devices (such as sealing compounds, adhesives, and sealing materials) required for reliable sealing to date, thus reducing costs and protecting the environment. In this configuration, the attachment of the groove to the first housing contact surface does not negatively impact the opening and closing power of the clamping and / or braking mechanisms.

[0015] According to a preferred aspect of this disclosure, the groove has a width of 1 mm to 2 mm, 1.4 mm to 1.6 mm, or about 1.5 mm. Alternatively or additionally, the groove has a depth of 0.5 mm to 1.0 mm, 0.65 mm to 0.75 mm, or about 0.7 mm. Within a given section of the groove, a preferred range or preferred volume of the sealing device to be accommodated is thus defined, and the possibility of applying too little or too much sealing device is reduced.

[0016] According to a preferred aspect of this disclosure, the cross-section of the groove can be V (V-shaped), rectangular with one side open, U (U-shaped), or semi-circular. These shapes are particularly preferred for the reception and reliable installation of the sealing device. The groove can also be other shapes.

[0017] According to a preferred aspect of this disclosure, at least one groove extends at least partially around the center point of the annular recess or at least partially along an arc, wherein the arc preferably spans a central angle of at least 45°, 90°, 120°, 135°, 160°, 180°, 225°, 270°, 315°, 350°, or 360°. The groove can be an approximately circular or annular configuration. The groove extends at least partially around a first edge. As a result, the groove promotes a seal that is as uniform or even symmetrical as possible, at least in the section of the first edge, which helps to extend the service life of the clamp.

[0018] According to a preferred aspect of this disclosure, the first housing contact surface further has one or more holes for fastening a housing component to another housing component by means of a fastening device, and at least one groove extends between the hole on the first housing contact surface and the first support surface, wherein the hole is disposed between a first edge on the first housing contact surface and the at least one groove. In other words, when viewed from the object to be clamped or braked, the hole is located outside the groove, resulting in the hole and the fastening device to be attached thereto not negatively affecting the seal between the housing components or the seal of the housing relative to the surrounding environment. This additionally increases the sealing performance and reduces the likelihood of failure.

[0019] According to a preferred aspect of this disclosure, the housing component has one, two, or more ports for applying a pressure medium (e.g., compressed air) to the housing component (particularly one or more pressure spaces). In this case, at least one groove is preferably interrupted by one or more ports, resulting in a gap at the port extending along one segment of the groove and continuing along another segment of the groove after being interrupted by the port. Alternatively or additionally, at least one groove on the first housing contact surface extends between a first edge of the housing component and one or more (other) ports, and preferably extends at least partially around the ports. This additionally increases sealing performance because the groove is guided all the way to the port and may even extend partially around the port, causing a sealing device located in the groove to seal the port relative to the first edge of the housing component, thereby sealing the port relative to the surrounding environment. This reduces the likelihood of failure by reducing leakage in the port area.

[0020] By means of the components described individually and in combination herein, a clamp can be provided that reliably seals between housing components and with respect to the surrounding environment without adversely affecting the dynamics of opening and closing the clamp.

[0021] If the brief description describes features not listed in the patent claims, these features do not constitute essential features and are not necessarily required to be included in the patent claims. However, these features are particularly prominent preferred implementations of the claimed subject matter and may be combined with each of the patent claims and may also be combined with each other as needed. Attached Figure Description

[0022] FIG. 1A A schematic cross-sectional view is shown of an inwardly guided passive pneumatic clamping and / or braking device according to the invention in a closed state.

[0023] FIG. 1B A schematic cross-sectional view is shown of a passive pneumatic clamping and / or braking device in a closed state according to the invention.

[0024] FIG. 2A A schematic cross-sectional view is shown of an inwardly guided passive pneumatic clamping and / or braking device according to the invention in the open state.

[0025] FIG. 2B A schematic cross-sectional view is shown of a passive pneumatic clamping and / or braking device in the open state according to the invention.

[0026] FIG. 3A A schematic cross-sectional view is shown of an inwardly guided active pneumatic clamping and / or braking device according to the invention in the open state.

[0027] FIG. 3B A schematic cross-sectional view is shown of an active pneumatic clamping and / or braking device in the open state according to the invention.

[0028] FIG. 4A A schematic cross-sectional view is shown of an inwardly guided active pneumatic clamping and / or braking device according to the invention in a closed state.

[0029] FIG. 4B A schematic cross-sectional view is shown of an active pneumatic clamping and / or braking device in a closed state according to the invention.

[0030] FIG. 5A A three-dimensional cross-sectional view of the pneumatic clamping and / or braking device according to the invention is shown.

[0031] FIG. 5B to FIG. 5D It shows the source FIG. 5A A variation of the housing component.

[0032] FIG. 6 A cross-sectional view is shown using a modified example of a housing component according to the invention.

[0033] FIG. 7 A plan view of the annular spring sheet is shown.

[0034] FIG. 8 It shows the relationship with the data. FIG. 7 A plan view of a modified example of a housing component according to the invention, used in conjunction with an annular spring sheet.

[0035] Components shown in multiple figures have the same reference numerals. Detailed Implementation

[0036] This disclosure relates to a housing component for a clamping and / or braking device, and a clamping and / or braking device having one or more such housing components.

[0037] If this document refers to a device as a “clamp” or “gripping device”, a “clamping force” or a “clamping process”, it also includes a device as a “brake” or “braking device” or a “braking force” or a “braking” process.

[0038] FIG. 1A to FIG. 5A A schematic cross-sectional view of such a clamping device 10 according to the invention is shown, which has two housing parts 3a, 3b according to the invention and a spring 1 arranged in the housing 3 and comprising at least two elastic elements 1a, 1b, in each case in the form of annular spring plates 1a, 1b.

[0039] The clamping device 10 according to the invention includes a housing 3, which includes a first housing component 3a and a second housing component 3b according to the invention. The housing components 3a and 3b according to the invention include the components mentioned earlier, specifically: a second edge 100a and a first edge 100b of the housing components 3a and 3b, wherein the edges 100a and 100b are positioned opposite each other; an annular notch 11 disposed between the second edge 100a and the first edge 100b for clamping the annular spring sheets 1a and 1b between a first support surface 101 defined by the notch 11 and a second support surface 102 defined by the notch 11 of the housing components 3a and 3b; and a clamping element 8 having a clamping surface 7. The clamping surface 7 is designed such that when the spring plates 1a and 1b are clamped in the notch 11 between the first support surface 101 and the second support surface 102, the first ends of the spring plates 1a and 1b are supported on the first support surface 101, and the second ends of the spring plates 1a and 1b are pressed against the second support surface 102, thereby transmitting the clamping force and / or braking force to the object 5 to be clamped and / or braked; a first housing contact surface 12a extends between the first edge 100b and the first support surface 101; wherein at least one groove 110 for receiving a sealing device is arranged or inserted into the first housing contact surface 12a. These components will be explained in more detail with reference to Figures 5, 6, and 8.

[0040] FIG. 1A to FIG. 5AThe clamping device 10 according to the invention shown has two housing components 3a, 3b arranged relative to each other and fastened to each other such that the first housing contact surface 12a of the first housing component 3a faces the first housing contact surface 12a of the second housing component 3b, and the recesses of the first housing component 3a and the recesses 11 of the second housing component 3b together form an internal space 13 within the housing 3. The clamping device 10 further includes a spring 1 arranged in the internal space 13 and including a first annular spring plate 1a and a second annular spring plate 1b, wherein the spring plates 1a, 1b are arranged within the internal space 13 to form at least one pressure space 2, 4, which is at least partially defined by the spring plates 1a, 1b, wherein the pressure spaces 2, 4 can be inflated or deflated and can withstand overpressure from a pressure medium that can be applied to the housing 3, wherein the first spring plate 1a is clamped between the first contact surface 101 and the second contact surface 102 of the first housing component 3a. Between; wherein the second spring plate 1b is clamped between the first contact surface 101 and the second contact surface 102 of the second housing component 3b; and wherein the spring plates 1a, 1b are arranged relative to at least one pressure space 2, 4 such that the bending of at least one of the spring plates 1a, 1b can be changed by inflating or deflating the pressure space 2, 4 or by subjecting the pressure space 2, 4 to overpressure, resulting in the device 10 changing between an open state and a closed state, in which the object 5 is spaced apart from the clamping surface 7, and in the closed state, one or more clamping surfaces 7 transmit clamping force and / or braking force to the object 5.

[0041] FIG. 1A , 1B Figures 4A and 4B each show the clamping device 10 in a closed state, wherein the clamping surface 7 of the clamping element 8 contacts the outer periphery of the object 5. The clamping element 8 is also referred to as a clamping rib. The clamping element 8 can be integrally formed with the rest of the housing parts 3a and 3b, or it can be an assembly of the housing parts 3a and 3b, structurally separate from the rest of the parts.

[0042] The clamping force or action of the clamping surface 7 on the object 5 to be clamped occurs in the clamping plane, which is stretched by two vectors, each vector forming the radius of the annular elastic elements 1a, 1b or the annular recess 11 (see...). FIG. 5AAxis 9 may extend through the center point of the ring of the assembly described herein as an annular structure, and may therefore be referred to as the main axis of the clamping device 10, which may extend perpendicularly to the clamping plane. When “inner / inner” and “outer / outer” housing contact surfaces, support surfaces, edges, or ends are referred to herein, the inner housing contact surface, support surface, edge, or end may be closer to axis 9 than the corresponding outer housing contact surface, support surface, edge, or end. This may also apply to other assemblies. The terms “inner / inner(r)” and “outer / outer(r)” may have other meanings.

[0043] The clamping device 10 may have a rotationally symmetrical configuration about the main axis 9. The main axis 9 may pass approximately or precisely centered through the opening of the clamping device 10. FIG. 5B (Opening 14 in the middle). FIG. 1A , 4A In this clamping device, the object 5 to be clamped (e.g., a rotatable shaft of a machine or workbench) is placed within the opening 14, and the clamping force of the clamping device is thus guided radially inward toward the main axis 9 (perpendicular to the main axis 9) within the clamping plane. FIG. 1B , FIG. 2B , FIG. 3B , FIG. 4B In this case, the object to be clamped 5 is placed outside the clamping device 10, and the clamping force of the clamping device is therefore guided radially outward away from the main axis 9 (perpendicular to the main axis 9) in the clamping plane.

[0044] exist FIG. 1A , 2A In models 3A and 4A, the clamping element 8 is located between the spring 1 and the opening 14 or the main axis 9. In contrast, in... FIG. 1B , 2B In 3B and 4B, the object 5 to be clamped at least partially surrounds the clamping device 10, resulting in the clamping element 8 being located between the object 5 and the opening 14 or the main axis 9. FIG. 1B , FIG. 2B , FIG. 3B , FIG. 4B In this case, a component that at least partially fills the opening 14 and through which the main axis 9 extends can be introduced into the opening 14, instead of the object 5 to be clamped.

[0045] exist FIG. 1A to FIG. 5A In each case, the spring 1 is clamped within the housing 3 of the clamping device 10 on two support surfaces. FIG. 5C and FIG. 5D It extends between and between the first support surface 101 and the second support surface 102. FIG. 1A to FIG. 2BIn the unpressurized initial state of the device 10, the spring 1 can be slightly bent to securely hold the device 10 within the housing 3. This also applies to any other state of the device 10, where the degree of bending of the spring 1 depends on the state of the device 10. If the device 10 is in a bent state (e.g., more bent than in the unpressurized initial state, such as in the open state), the venting of the second (e.g., internal) pressure chamber 2 and the inflation of the first (e.g., external) pressure chamber 4 of the spring 1 can cause the spring 1 to at least partially relax, while the spring 1 presses against the radial support surface (the distance between the radial support surfaces increases slightly). As a result, the housing 3 elastically deforms 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 to securely clamp the object 5. The object 5 is securely clamped, and the clamping device 10 is in a closed state, such as... FIG. 1A and 1B As shown. In the closed state of device 10, even after partial relaxation, spring 1 can still bend slightly so as to be firmly fixed in the housing 3 in this state.

[0046] In this case, the clamping element 8 can be an elastic element, such as a spring fork, which moves from its relaxed initial position to a supported position in the unpressured initial state of the device 10 by the spring force of the (slightly) bent spring 1, for example, by the bending of the spring fork 8, until a balance is reached between the restoring force of the elastic element 8 and the spring force of the spring 1 in the unpressured initial state. In this balanced state, the clamping surface 7 can press against the object 5.

[0047] By applying additional compressed air (e.g., 4 bar or 6 bar) to the first pressure chamber 4 in the closed state, there is an optional possibility to increase the clamping force by a predetermined value. This is in FIG. 1A , 1B The pressure chamber 4 is indicated by an optional additional compressed air pump (booster) 6 and a hatch (compressed air) in the first pressure chamber 4. The pressure chamber 4 (“external pressure chamber 4”), located on the outside (upper or lower) of the spring plate, can be connected to an air port I (also referred to as “closed”) through an opening in the housing 3, to which the compressed air pump 6 can be connected.

[0048] As a result, for example, it is possible to actuate the device 10 in such a way that a change occurs between the braking motion of the object 5 (in a pressureless state) and the complete clamping of the object (when sufficient pressure is applied).

[0049] Although two pressure chambers 2, 4 are shown and described herein by way of example, the clamping device 10 may also be operated with a single pressure chamber, which may be, for example, pressure chamber 2 (“inner pressure chamber 2”) arranged between the spring plates (inside the spring plates) or outer pressure chamber 4.

[0050] FIG. 2A and 2B The ones that are in the open state are shown respectively. FIG. 1A and 1B The clamping device 10 has a clamping surface 7 that does not contact or is spaced apart from the outer periphery of the object 5. The internal pressure chamber 2 can be connected to an air port II (also referred to as an "opening") through an opening in the housing 3, to which a compressed air pump 6 can be connected.

[0051] Compressed air (e.g., 4 bar or 6 bar) is applied to the second (e.g., internal) pressure chamber 2 by compressed air pump 6 and exhausts the first (e.g., external) pressure chamber 4. FIG. 1A , 1B Compared to the closed state, spring 1 is more strongly (raisedly) bent or supported, and the distance between spring 1 or the two supporting surfaces is radially shortened. Clamping surface 7 is lifted from object 5 to release clamping. Object 5 is free to move (e.g., it can rotate about axis 9 or move linearly along axis 9), and clamping device 10 is open.

[0052] The device 10 can be switched back and forth between its closed and open states.

[0053] Compared to hydraulic clamps, this pneumatic clamp 10 has many advantages.

[0054] For example, by using a combination of elastic components (in this example, spring 1 together with elastic elements 1a and 1b) and compressed air, a very short reaction time can be achieved when switching between open and closed states, and the object 5 can be securely clamped. Spring 1 can preferably have a sheet-like structure, as shown in more detail in FIG5, where two elastic elements 1a and 1b, one on top of the other, form spring 1 and its internal pressure chamber 2 between the sheets 1a and 1b. The sheets 1a and 1b can also be annular, as shown in FIG5, and can optionally additionally have radial grooves, allowing the inner diameter to be changed with a very small force. The elastic elements 1a and 1b can be rubber-coated at least in the grooved areas to create the seal required by the compressed air. The elastic elements 1a and 1b generally have a pressure-resistant and therefore elastically bendable form, and are arranged in the housing 3 of the clamping device 10 such that the internal pressure chamber 2 is formed between the elastic elements 1a and 1b within spring 1, and an external pressure chamber 4 is formed between each elastic element 1a and 1b and the housing 3 or the housing components 3a and 3b of the clamping device 10. Figure 5 shows a similar example.FIG. 1A and FIG. 2A A three-dimensional view of the clamping device 10.

[0055] like FIG. 1A As shown, by inflating or applying compressed air to the first (e.g., external) pressure chamber 4 and venting the second (e.g., internal) pressure chamber 2, the spring 1 is at least partially relaxed and generates a clamping force on the object 5 to be clamped, particularly on the outer periphery of the shaft 5. As a result, in the event of an energy or pressure failure, the object 5 is clamped or the shaft 5 is immediately brought to a stop, thus providing a safe clamping position. Depending on size, such a pneumatic clamp 10 can achieve holding torques ranging from several 100 Nm to several 1000 Nm, which can be further increased by additionally applying compressed air (via the pressure pump 6 (booster)) to the first (e.g., external) pressure chamber 4, such as... FIG. 1A As shown in the diagram. Here, a few bar (e.g., 4 bar or 6 bar) of compressed air is sufficient to provide a multiple of the holding torque achievable without a booster. In this case, the fact that a small lateral bend (perpendicular to its longitudinal axis) of the plates 1a, 1b generates a large spring force when the clamp 10 switches between open and closed states is utilized. This spring force can be used to clamp or release prestress from the clamping device 10. This allows for reliable clamping and release even from a rapidly rotating machine shaft 5.

[0056] In the case of pneumatic materials, the cost and assembly expenses are also lower compared to hydraulic materials, and no additional installation and cleaning costs are required due to the use of compressed air. This pneumatic clamp can also achieve a smaller overall size because small lateral bending and small longitudinal range (variation) of the spring, as well as a small pressure space volume, are sufficient to apply the required clamping force.

[0057] In the case of pneumatic clamps, the principle is to distinguish between, for example: FIG. 1A to FIG. 2B The passive clamping device 10 shown and as FIG. 3A to FIG. 4B The active clamping device 10 shown.

[0058] In the initial, unpressurized state, spring 1 can bend to varying degrees (laterally) and thus shorten radially to varying degrees. The inner side of housing 3 can be adapted to or can limit the bending of elastic elements 1a, 1b. Corresponding stop surfaces for elastic elements 1a, 1b can be formed, for example, by the inner wall of housing. The inner wall of housing can have a form complementary to (e.g., concave) the bending (e.g., convex) of elastic elements 1a, 1b.

[0059] In the case of the passive clamping device 10, in the initial state without pressure, the spring 1 is typically slightly elastic (e.g., convex) bent or prestressed, and the clamping device 10 can be closed. FIG. 1A , 1BThe clamping device 10 is opened only by applying force from the inside via compressed air to the second (e.g., internal) pressure chamber 2. FIG. 2A , 2B In most cases, spring 1 is slightly bent in the initial state without pressure. As a result, when clamped or when pressure is reduced, the spring force provided by the energy stored in spring 1 is transmitted as a clamping force to the object to be clamped 5 to clamp the object 5.

[0060] In the case of the active clamping device 10, under the initial pressure-free state ( FIG. 3A , 3B In this configuration, spring 1 bends laterally outward more strongly than in the case of a passive clamping device, and in particular bulges more strongly. As a result, the distance between the two radial support surfaces is shortened and the clamping device 10 opens. No clamping force is generated on the object 5 via the clamping surface 7. The object is free because the clamping surface 7 does not contact or space from the object 5.

[0061] Through the plastic deformation of spring plates 1a and 1b, in the same housing 3, spring 1 can bend laterally outward more strongly in the unpressured initial state, and therefore shorten radially more strongly than in the case of a passive clamping device. This smaller radial range of spring plates 1a and 1b in the unpressured initial state can result in the clamping device 10 being in an open state in the unpressured initial state. Even in the case of plastic deformation, spring plates 1a and 1b elastically bend and press against the support surface, thus fixing the spring in the housing. The internal space of the housing or recess can accommodate the stronger curvature resulting from the plastic deformation in the initial state.

[0062] Now, clamping force must be actively introduced from the outside, such as... FIG. 4A and 4B As shown, this is to allow the clamp to be switched to the closed state. Here, compressed air is introduced into the first (e.g., external) pressure chamber 4 via the compressed air pump 6, and thus the compressed air is applied from the outside to the spring 1, causing the spring 1 to be actively relaxed, the curvature of the spring 1 to decrease, the distance between the two support surfaces to increase, and the housing 3 to elastically deform 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 fixing the object 5 in place. The active clamping device 10 is then in the closed state.

[0063] Therefore, depending on the application area and prescribed safety regulations, either an active or passive clamping system 10 is used. If safety clamping is the primary requirement, a passive clamping device is typically used. With this pneumatic passive clamping system, even in a pressureless state, a predetermined clamping force can be generated within the corresponding device components throughout the entire device, and this clamping force is applied to the object 5 to be clamped. As a result of applying overpressure or negative pressure, the force transmitted to the object can be increased, decreased, or completely eliminated, opening up a variety of applications. Conversely, if the clamping device is primarily used for intentional operations such as tool changing, an active clamping device is typically used.

[0064] FIG. 5A A cross-sectional view of the pneumatic clamping device 10 according to the present invention is shown in three dimensions. This document illustrates, by way of example, the pneumatic clamping device 10 according to the present invention. FIG. 1A , 2A Device 10 with inwardly guiding clamping force, 3A, and 4A. Then, FIG. 5B to FIG. 8 Further details of the device 10 are shown. However, for FIG. 5A to FIG. 8 The contents shown in the device are correspondingly applicable to the following: FIG. 1B , 2B Device 10 with outward guiding clamping force of 3B and 4B.

[0065] like FIG. 5A As shown, the housing 3 of the clamping device 10 according to the present invention includes two housing components 3a and 3b according to the present invention, each housing component 3a and 3b having a groove (not shown herein) (see See FIG. 6 In the case of 110), housing components 3a and 3b are fastened to each other by fastening devices 17 (such as screws) through holes 15, and are installed in such a way that, in the installed state, the recesses of the housing components overlap each other, and the two housing components a and 3b define an internal space 13 between the housing components 3a and 3b within the housing 3, in which the spring 1 and its annular spring plates 1a and 1b are arranged. Each housing component 3a and 3b defines a recess 11, which is also annular and is used to receive the annular spring plates 1a and 1b, as shown in Figure 110. FIG. 5A to FIG. 5D As shown. At least a portion of the first support surface 101 of the housing component may extend (substantially) perpendicular to the radial direction R of the annular recess 11 and / or a portion of the second support surface 102 of the housing component may extend (substantially) perpendicular to the radial direction R of the annular recess 11.

[0066] Opening 14 ( FIG. 5BThe opening 3 extends through the center of the housing 3, into which an object 5 (such as a shaft) to be clamped can be introduced. The housing can extend 360° around the opening and at least partially enclose the object 5 in at least one plane referred to as the clamping plane. The central axis 9 of the clamping device passes centrally through the opening 14 and extends perpendicular to the clamping plane. FIG. 1A , FIG. 2A , FIG. 3A , FIG. 4A , FIG. 5A In the clamping device, the main axis 9 extends centrally through the shaft along the longitudinal axis of the shaft.

[0067] One or more clamping surfaces 7 are positioned along the outer periphery of the housing 3 or the opening 14. When the housing 3 elastically deforms in the region of the clamping element 8 or the clamping surface 7, the clamping surface 7 can generate a clamping force on the outer periphery of the object 5, thereby clamping the object 5. To effectively open and close the clamping device 10 relative to the object 5 without the risk of damaging the object 5, it is desirable that the clamping force be symmetrically distributed along the clamping surface 7 or along the outer periphery of the object 5. Asymmetrical distribution of the clamping force may cause damage to the object 5. Preferably, one or two adjacent surfaces 101, 102 have a circular configuration in the clamping plane. Preferably, the clamping surface 7 has a circular configuration in the clamping plane. The clamping element 8 may be annular. All annular or circular components described herein may be individually or in combination, with the intersection of the main axis 9 and the clamping plane (e.g., the center point of the opening 14) as the center point.

[0068] FIG. 5B -D illustrates an embodiment of the housing component according to the invention (here it is shown as...). FIG. 5A The upper housing component 3a). The housing components 3a and 3b according to the invention include the components mentioned at the beginning, namely, the second edge 100a (inner edge) and the first edge 100b (outer edge), wherein the edges 100a and 100b are positioned opposite each other; an annular recess 11, disposed between the second edge 100a and the first edge 100b, for clamping the annular spring sheets 1a and 1b on the first support surface 101 (outer support surface) defined by the recess 11 and the housing portion of the housing components 3a and 3b. Between the second support surfaces 102 (in this case, the inner support surface) defined by the recess 11 of components 3a and 3b; a clamping element 8 having a clamping surface 7, which is designed such that when the spring sheets 1a and 1b are clamped in the recess 11 between the first support surface 101 and the second support surface 102, the first end of the spring sheets 1a and 1b is supported on the first support surface 101 and the second end of the spring sheets 1a and 1b is pressed against the second support surface 102, thereby transmitting the clamping force and / or braking force to the object 5 to be clamped and / or braked (see SeeFIG. 5A , 5B The opening 14 contains the object 5; a first housing contact surface 12a (here, the outer housing contact surface) extending between the first edge 100b and the first support surface 101; wherein at least one groove 110 for receiving a sealing device is arranged or inserted into the first housing contact surface 12a. Preferably, the cross-section of the groove 110 formed in the radial direction R can be V (V-shaped, V being an opening in the direction of surface 12a), rectangular with an opening on one side facing surface 12a, U (U-shaped, U being an opening in the direction of surface 12a), or semi-circular. Housing components 3a, 3b may include a second housing contact surface 12b (here, the inner housing contact surface) extending between the second support surface 102 and the second edge 100b.

[0069] Housing components 3a and 3b extend between a second edge 100a and a first edge 100b and may preferably have an annular configuration, the second edge 100a being positioned closer to axis 9 herein and the first edge 100b being positioned further away from axis 9 herein. Housing component 3a includes an annular recess 11 for holding an annular spring sheet 1a, wherein housing component 3a has an inner surface defined by the recess 11 (see...). FIG. 6 (105 in the example). The annular recess 11 preferably defines an annular opening 12 in the housing component, wherein the annular opening 12 is formed between a first (e.g., annular) housing contact surface 12a of the housing component and a second (e.g., annular) housing contact surface 12b of the housing component.

[0070] When the first upper surface (see FIG. 5B When the spring sheet 1a facing the inner surface 105 is introduced into the recess 11 through the opening 12 and is held in the recess 11, a first pressure space 4 is formed between the inner surface 105 and the spring sheet 1a.

[0071] like FIG. 5C and FIG. 5D As shown, the spring sheet 1a of spring 1 extends from a first support surface 101 within the housing component 3a to a second support surface 102 within the housing component 3a and can contact the latter. In this case, viewed from the center point of opening 14, the first support surface 101 is arranged to be radially outward than the second support surface 102.

[0072] FIG. 5C It shows FIG. 5B The cross-sectional view of the housing component 3a shown indicates that the upper plate 1a of the spring 1 is in contact with the first support surface 101 and preferably in contact with the first support surface 101. FIG. 5D It shows FIG. 5BThe cross-sectional view of the housing component 3a shown indicates that the upper plate 1a of the spring 1 is in contact with and preferably touches the second support surface 102. However, in each case, one or more additional components may be provided radially between the spring plate 1a and one or more support surfaces 101, 102, through which the spring plate 1a applies its spring force to the support surfaces 101, 102.

[0073] like FIG. 5B-5D As shown, the spring sheet 1a is clamped in a recess 11 between the support surfaces 101 and 102 of the housing component 3a. Within the assembly of the support surfaces 101 and 102 of the housing component 3a, each sheet of the spring 1 is introduced into the recess 11 of the corresponding associated housing component through an opening 12 in the direction of the main axis 9 of the clamping device 10, until the respective sheet abuts against the stops 112 and 122 at the ends of each of the two support surfaces 101 and 102, and thus cannot be further introduced into the recess 11. Because the extent of the spring sheet 1a in the clamping plane or in the radial direction of the annular recess can be greater than the extent of the internal space defined by the housing component, the sheet 1a can be bent or prestressed in an unstressed initial state.

[0074] The spring sheet 1a may be coated (e.g., vulcanized) with an elastic sealing material, preferably rubber or another suitable material.

[0075] FIG. 6 Showing from FIG. 5B Further details of the housing component 3a according to the invention. Besides the recess 11, the first support surface 101, and the second support surface 102, FIG. 6 Also shown are groove 101 and additional options such as inner surface 105, hole 15, bevels 103, 104 and notch 106.

[0076] Housing components 3a and 3b include annular recesses 11 for clamping annular spring sheets 1a and 1b. The recesses 11 can form a first annular edge on a first housing contact surface 12a of the annular opening 12 of the housing components 3a and 3b, and a second annular edge on a second housing contact surface 12b. The annular recesses 11 define an inner surface 105 of the housing components 3a and 3b between the first and second annular edges. The inner surface 105 forms a first inclined surface 103 (or a long inclined surface) in the region of the first annular edge, and a second inclined surface 104 (or a long inclined surface) in the region of the second annular edge. The inclined surfaces 103 and 104 are oriented such that the annular opening 12 widens toward the first and second annular edges or the corresponding housing contact surfaces (see [link]). FIG. 6 (12a, 12b in the text).

[0077] When the spring sheets 1a and 1b, with their first side surface 16c facing the inner surface 105, are clamped in the recess 11, the coating of the spring sheets 1a and 1b will make preferred sealing contact with at least one first section on the inner side of the housing components 3a and 3b. The first section may include the support surfaces 101 and 102, the ramps 103 and 104, and / or other portions of the inner surface 105. The recess 106 facilitates the dynamic performance of the clamping element 8, allowing the clamping element 8 to be further bent.

[0078] The inner surface 105 may include a first support surface 101 and a second support surface 102, which are configured to hold spring sheets 1a and 1b therebetween. A first inclined surface 103 is disposed between the first support surface 101 and a first annular edge of surface 12a, and a second inclined surface 104 is disposed between the second support surface 102 and a second annular edge of surface 12a. When the spring sheets 1a and 1b with the first side surface 16c facing the inner surface 105 are held in the recess 11, the coating of sheets 1a and 1b can preferably be in sealing contact with the inclined surfaces 103 and 104.

[0079] like FIG. 6 As shown, the first support surface 101 may be formed or merged into a first inclined surface 103 (or a long inclined surface) and / or the second support surface 102 may be formed or merged into a second inclined surface 104 (or a long inclined surface), wherein the inclined surfaces 103 and 104 are preferably oriented such that the annular opening 12 or the recess 11 expands toward the first and second edges of the surfaces 12a and 12b (see [reference]). FIG. 6 and FIG. 5B ).

[0080] Housing components 3a and 3b have preferably annular grooves or recesses 110 for receiving sealing devices (e.g., sealing compounds or rubber O-rings) on the first housing contact surface 12a. The grooves or recesses 110 may extend partially or preferably completely around housing components 3a and 3b on the first housing contact surface 12a along (e.g., parallel to) a first edge 100b of the housing component, between the first edge 100b and the first support surface 101 or recess 11. Alternatively or additionally, the grooves or recesses 110 may extend partially or preferably completely around housing components 3a and 3b in a region of surface 12b along the outer periphery of the housing component, or between the second edge 100a and the second support surface 102 or recess 11.

[0081] like FIG. 6 As illustrated in the example, the first housing contact surface 12a may also have one or more holes 15 for fastening housing component 3a to another housing component 3b by means of fastening device 17 (see example). FIG. 5BThe groove 110 may extend on the first housing contact surface 12a between the hole 15 and the first support surface 101. The hole 15 is disposed on the first housing contact surface 12a between the first edge 100b and the groove 110. The groove 110 may have a width B of 1 mm to 2 mm, 1.4 mm to 1.6 mm, or 1.5 mm. The groove may have a depth of 0.5 mm to 1.0 mm, 0.65 mm to 0.75 mm, or 0.7 mm. These dimensions are particularly advantageous in order to precisely accommodate and specifically attach as many sealing devices (e.g., O-rings, adhesives, and sealing materials) as needed. This reduces the consumption of sealing devices.

[0082] One advantage of the groove 110 is that it provides a sealing function, which is crucial for operation in the closed state because it allows for sealing during millions of additional air (pressurization) switches. This enables targeted use of sealing devices (adhesives and sealing materials) between the two halves of the housing, reducing consumption. Because the pitch circle diameter of the connecting screw changes, a groove can be introduced on the outer periphery between the "open" and "closed" ports.

[0083] FIG. 7 Exemplary embodiments of spring sheets 1A, 1B having a first port sealing device 30 and / or a second port sealing device 20 are shown. The sealing devices 20, 20 may be made of an elastic sealing material such as rubber, and may be part of an elastic sealing coating (e.g., a rubber coating) of the spring sheet, which is, for example, vulcanized onto the spring sheet.

[0084] The first port sealing device 30 and the second port sealing device 20 can be arranged on the opposite portions of the second edge 100a or the first edge 100b of the annular spring sheet.

[0085] The first port sealing device 30 may be arranged at least at the second edge 100a and / or the first edge 100b relative to the spring plates 1a, 1b (see...). FIG. 7 In sections that are radially offset inward or outward. The first port sealing device 30 may protrude radially beyond the second edge 100a or the first edge 100b (see...). FIG. 7 ).

[0086] The second port sealing device 20 may be arranged at least at the second edge 100a and / or the first edge 100b relative to the spring plates 1a, 1b (see...). FIG. 7 In sections that are radially offset inward or outward. The second port sealing device 20 may protrude radially beyond the second edge 100a or the first edge 100b (see...). FIG. 7 ).

[0087] according to FIG. 7Spring sheets 1A and 1B can be clamped according to FIG. 5B , 6 In the housing components 3a and 3b of housing components 8. In this case, the elastic elements 1a and 1b are clamped in the groove 11 between the second edge 100a (or the clamping element 8 having the clamping surface 7 or the second housing contact surface 12b) and the first edge 100b (or the first housing contact surface 12a) of housing components 3a and 3b, so that the first port sealing device 30 contacts the area of ​​housing components 3a and 3b for applying pressure medium to the first port I of the housing component, and the second port sealing device 20 contacts the area of ​​housing components 3a and 3b for applying pressure medium to the second port II of the housing component (see See FIG. 7 , 8 This process is repeated twice, resulting in two such housing components 3a and 3b, each clamping a spring plate 1a and 1b, which are then fastened together to form a shape as shown. FIG. 5A The shell shown is 3.

[0088] The groove 110 extends on the first housing contact surface 12a and can be designed to extend at least partially around the object 5 (see [reference]). FIG. 5A The groove 110 may extend at least partially along an arc. The arc may span a central angle of at least 45°, 90°, 120°, 135°, 160°, 180°, 225°, 270°, 315°, 350°, or 360°. FIG. 8 In the middle, the central angle is 360° because the groove 110 once extended completely around the center point of the opening 14.

[0089] However, recess 110 can be interrupted and / or, such as, by one or more of ports I and II. FIG. 8 As shown, a groove 110 on the first housing contact surface 12b can extend between the first edge 100b of the housing components 3a, 3b and one or more of ports I, II, and preferably extends at least partially around the ports. Because the groove 110 is guided to ports I, II and may even extend partially around the ports, a sealing device located in the groove 110 seals ports I, II relative to the first edge 100b of the housing components and the surrounding environment. This reduces leakage in the port I, II area, thereby reducing the likelihood of failure.

[0090] In Figure 5 to FIG. 8In this configuration, sealing devices (e.g., rubber rings, O-rings made of rubber) can be accommodated in the grooves (see 110) of each housing component 3a, 3b. In this case, corresponding individual sealing devices (i.e., at least two sealing devices in total for each housing 3 of the clamping and / or braking device 10) can be present in each of the housing components 3a, 3b, or a single sealing device can be accommodated in the grooves of the housing components 3a, 3b when the housing components 3a, 3b are fastened to each other.

[0091] As already explained, Figure 5 to FIG. 8 The following is illustrated by example. FIG. 1A , 2A The components of the device 10 with inwardly guiding clamping force are 3A and 4A. In this case, the first edge 100b is the outer edge along which the optional hole 15 is arranged, and the second edge 100a is the inner edge facing the object 5. Then, the second support surface 102 is positioned more inwardly than the first support surface 101.

[0092] However, for FIG. 5A to FIG. 8 The contents shown in the device are correspondingly applicable to the following: FIG. 1B , 2B Devices 10 with outwardly pointing clamping force, 3B and 4B. In the latter case, the first edge 100b will be the inner edge along which the optional hole 15 is arranged, and the second edge 100a will be the outer edge facing the object 5. Then, the second support surface 101 is located further outward than the first support surface 101.

[0093] By means of the components described individually and in combination herein, a clamp can be provided that reliably seals between housing components and with respect to the surrounding environment without adversely affecting the dynamics of opening and closing the clamp.

[0094] Preferred embodiments of the subject matter claimed by the appended claims are described in the specification and drawings. Optional features disclosed in the foregoing description, claims, and drawings may be used individually or in any desired combination to implement the subject matter claimed herein according to the appended claims in its various configurations.

[0095] The foregoing aspects and embodiments can be combined to create other embodiments. These and other changes can be made to the embodiments based on the detailed description above. Generally, the terminology used in the appended claims should not be construed as limiting the claims to the specific aspects and embodiments disclosed in the specification and claims, but rather covers all possible embodiments and the full scope of equivalents conferred by those claims.

Claims

1. A housing component (3a, 3b) for a pneumatic clamping and / or braking device (10), said housing component (3a, 3b) comprising: The first edge (100b) of the housing component (3a, 3b) and the second edge (100a) of the housing component (3a, 3b) opposite to the first edge (100b). An annular recess (11) is arranged between the second edge (100a) and the first edge (100b) for clamping annular spring sheets (1a, 1b) between a first support surface (101) of the housing component (3a, 3b) defined by the recess (11) and a second support surface (102) of the housing component (3a, 3b) defined by the recess (11); A clamping element (8) has a clamping surface (7) designed such that when the spring sheets (1a, 1b) are clamped in the recess (11) between the first support surface (101) and the second support surface (102), a first end of the spring sheets (1a, 1b) is supported on the first support surface (101), and a second end of the spring sheets (1a, 1b) is pressed against the second support surface (102), thereby transmitting clamping force and / or braking force to the object (5) to be clamped and / or braked. A first housing contact surface (12a) extends between the first edge (100b) and the first support surface (101); At least one groove (110) is arranged on the first housing contact surface (12a) for accommodating the sealing device; The housing components (3a, 3b) have one, two, or more ports (Ⅰ, Ⅱ) for applying a pressure medium to the housing components; Its features The at least one groove (110) is interrupted by one or more ports (I, II); and / or The at least one groove (110) on the first housing contact surface (12a) extends between the first edge (100b) of the housing component (3a, 3b) and the one or more ports (I, II).

2. The housing component according to claim 1, characterized in that: The first housing contact surface (12a) further has one or more holes (15) for fastening the housing component (3a) to another housing component (3b) by means of a fastening device (17).

3. The housing component according to claim 2, characterized in that: At least one groove (110) on the first housing contact surface (12a) extends between the hole (15) and the first support surface (101).

4. The housing component according to claim 2 or 3, characterized in that: The hole (15) on the first housing contact surface (12a) is arranged between the first edge (100b) and the at least one groove (110).

5. The housing component (3a, 3b) according to claim 1, characterized in that: The groove (110) extends at least partially along an arc, and / or the at least one groove (110) is designed to extend at least partially around the center point of the annular recess (11).

6. The housing component according to claim 1, characterized in that: At least one groove (110) extending on the first housing contact surface (12a) between the first edge (100b) of the housing component (3a, 3b) and one or more ports (I, II) extends at least partially around the port.

7. The housing component (3a, 3b) according to claim 1, characterized in that: The housing components (3a, 3b) are designed such that when the second end of the spring sheet (1a, 1b) presses against the second support surface (102), the housing components (3a, 3b) elastically deform in the region of the clamping element and / or the second support surface (102), thereby allowing the clamping surface (7) to transmit the clamping force and / or braking force to the object to be clamped and / or braked (5).

8. The housing component (3a, 3b) according to claim 1, characterized in that: The housing components (3a, 3b) further include a second housing contact surface (12b) extending between the second support surface (102) and the second edge (100a) of the housing components (3a, 3b).

9. The housing component (3a, 3b) according to claim 8, characterized in that: The annular recess (11) defines an annular opening (12) for inserting the spring sheet (1a, 1b) into the housing component (3a, 3b), wherein the annular opening (12) is formed between the first housing contact surface (12a) and the second housing contact surface (12b).

10. The housing component (3a, 3b) according to claim 8, characterized in that: The second support surface (102) and the clamping surface (7) are arranged on opposite side surfaces of the clamping element (8), with the second housing contact surface (12b) arranged between them, and / or the clamping surface (7) is arranged at the second edge (100a).

11. The housing component (3a, 3b) according to claim 8, characterized in that: The distance between the second support surface (102) and the second edge (100a) or the clamping surface (7) is less than the distance between the first support surface (101) and the second edge (100a) or the clamping surface (7), and / or the distance between the first support surface (101) and the first edge (100b) is less than the distance between the second support surface (102) and the first edge (100b), and / or in the state of being installed with the clamping and / or braking device, the second edge (100a) of the housing component (3a, 3b) is closer to the object (5) than the first edge (100b), and / or in the state of being installed with the clamping and / or braking device, the second housing contact surface (12b) of the housing component (3a, 3b) is closer to the object (5) than the first housing contact surface (12a).

12. A clamping and / or braking device (10) for clamping and / or braking an object (5) to be clamped and / or braked, comprising: The housing (3) includes housing components, wherein at least two of the housing components are housing components according to claim 1, wherein the at least two housing components (3a, 3b) include a first housing component (3a) and a second housing component (3b). The first housing component (3a) and the second housing component (3b) are arranged relative to each other and fastened to each other such that the first housing contact surface (12a) of the first housing component (3a) faces the first housing contact surface (12a) of the second housing component (3b), and the recess (11) of the first housing component (3a) and the recess (11) of the second housing component (3b) together form an internal space (13) in the housing (3). The sealing device is accommodated in a corresponding groove (110) in each of the first housing component (3a) and the second housing component (3b); A spring (1) is arranged in the internal space (13) and includes spring plates (1a, 1b), wherein the spring plates (1a, 1b) are arranged in the internal space (13) such that at least one pressure space (2, 4) is formed in the internal space (13), the pressure space (2, 4) being at least partially defined by the spring plates (1a, 1b), wherein the pressure space (2, 4) is capable of being inflated or deflated and is capable of withstanding overpressure from a pressure medium applied to the housing (3). The spring sheets (1a, 1b) include a first annular spring sheet (1a) and a second annular spring sheet (1b). The first annular spring sheet (1a) is held between the first support surface (101) of the first housing component (3a) and the second support surface (102) of the first housing component (3a); The second annular spring sheet (1b) is sandwiched between the first support surface (101) and the second support surface (102) of the second housing component (3b); The first annular spring plate (1a) and the second annular spring plate (1b) are arranged relative to the at least one pressure space (2, 4) such that by inflating, deflating or subjecting the pressure space (2, 4) to overpressure, the bending of at least one of the first annular spring plate (1a) and the second annular spring plate (1b) changes, thereby allowing the device (10) to switch between an open state in which the object (5) is spaced apart from the clamping surface (7) and a closed state in which clamping force and / or braking force is transmitted from one or more of the clamping surfaces (7) to the object (5).

13. A clamping and / or braking device (10) for clamping and / or braking an object (5) to be clamped and / or braked, comprising: The housing (3) includes housing components; Each of at least two housing components (3a, 3b) includes: The first edge (100b) of the housing component (3a, 3b) and the second edge (100a) of the housing component (3a, 3b) opposite to the first edge (100b). An annular recess (11) is arranged between the second edge (100a) and the first edge (100b) for clamping annular spring sheets (1a, 1b) between a first support surface (101) of the housing component (3a, 3b) defined by the recess (11) and a second support surface (102) of the housing component (3a, 3b) defined by the recess (11); A clamping element (8) has a clamping surface (7) designed such that when the spring sheets (1a, 1b) are clamped in the recess (11) between the first support surface (101) and the second support surface (102), a first end of the spring sheets (1a, 1b) is supported on the first support surface (101), and a second end of the spring sheets (1a, 1b) is pressed against the second support surface (102), thereby transmitting clamping force and / or braking force to the object (5) to be clamped and / or braked. A first housing contact surface (12a) extends between the first edge (100b) and the first support surface (101). At least one groove (110) for accommodating a sealing device is arranged on the first housing contact surface (12a); and The at least two housing components (3a, 3b) include a first housing component (3a) and a second housing component (3b); the first housing component (3a) and the second housing component (3b) are arranged relative to each other and fastened to each other such that the first housing contact surface (12a) of the first housing component (3a) faces the first housing contact surface (12a) of the second housing component (3b), and the recess (11) of the first housing component (3a) and the recess (11) of the second housing component (3b) together form an internal space (13) within the housing (3). A spring (1) is arranged in the internal space (13) and includes spring plates (1a, 1b), wherein the spring plates (1a, 1b) are arranged in the internal space (13) such that at least one pressure space (2, 4) is formed in the internal space (13), the pressure space (2, 4) being at least partially defined by the spring plates (1a, 1b), wherein the pressure space (2, 4) is capable of being inflated or deflated and is capable of withstanding overpressure from a pressure medium applied to the housing (3). The spring sheet (1a, 1b) includes a first annular spring sheet (1a) and a second annular spring sheet (1b), wherein the first annular spring sheet (1a) is sandwiched between the first support surface (101) of the first housing component (3a) and the second support surface (102) of the first housing component (3a). The second annular spring sheet (1b) is sandwiched between the first support surface (101) and the second support surface (102) of the second housing component (3b); The first annular spring plate (1a) and the second annular spring plate (1b) are arranged relative to the at least one pressure space (2, 4) such that by inflating, deflating or subjecting the pressure space (2, 4) to overpressure, the bending of at least one of the first annular spring plate (1a) and the second annular spring plate (1b) changes, thereby allowing the device (10) to switch between an open state in which the object (5) is spaced apart from the clamping surface (7) and a closed state in which clamping force and / or braking force is transmitted from one or more of the clamping surfaces (7) to the object (5).

14. The clamping and / or braking device (10) according to claim 12 or 13, wherein, The first housing component (3a) and the second housing component (3b) are fastened to each other by one or more fastening devices (17) in holes (15) arranged in the first housing contact surface (12a).

15. The clamping and / or braking device (10) according to claim 12 or 13, wherein, The second housing contact surface (12b) of the first housing component (3a) faces the second housing contact surface (12b) of the second housing component (3b).

16. The clamping and / or braking device (10) according to claim 12 or 13, wherein, The at least one pressure space includes a first pressure space (4), which is arranged outside the spring (1) and between the at least one spring sheet (1a, 1b) and the housing (3).

17. The clamping and / or braking device (10) according to claim 16, wherein, The first annular spring sheet (1a) is designed to reduce the bending of the first annular spring sheet (1a) by inflating the first pressure space (4) or by subjecting the first pressure space (4) to overpressure, so that when the first end of the first annular spring sheet (1a) is supported on the first support surface (101) of the first housing component (3a), the second end of the first annular spring sheet (1a) is pressed against the second support surface (102) of the first housing component (3a), thereby causing the clamping force and / or braking force to be transmitted from the clamping surface (7) of the clamping element (8) of the first housing component (3a) to the object to be clamped and / or braked (5), and the device (10) changes from an open state to a closed state.

18. The clamping and / or braking device (10) according to claim 16, wherein, The second annular spring sheet (1b) is designed to reduce the bending of the second annular spring sheet (1b) by inflating the first pressure space (4) or by subjecting the first pressure space (4) to overpressure, so that when the first end of the second annular spring sheet (1b) is supported on the first support surface (101) of the second housing component (3b), the second end of the second annular spring sheet (1b) presses against the second support surface (102) of the second housing component (3b), thereby causing the clamping force and / or braking force to be transmitted from the clamping surface (7) of the clamping element (8) of the second housing component (3b) to the object (5) to be clamped and / or braked, and the device (10) changes from the open state to the closed state.

19. The clamping and / or braking device (10) according to claim 16, wherein, The device (10) is designed such that by inflating the first pressure space (4) or by subjecting the first pressure space (4) to overpressure, the first support surface (101) and the second support surface (102) of at least one of the two housing components (3a, 3b) move away from each other and / or the bending of at least one of the spring sheets (1a, 1b) decreases, and as a result the device (10) changes from the open state to the closed state.

20. The clamping and / or braking device (10) according to claim 12 or 13, wherein, The at least one pressure space includes a second pressure space (2), wherein the second pressure space (2) is arranged between the first annular spring sheet (1a) and the second annular spring sheet (1b) within the spring (1).

Images