Housing part for pneumatic clamping and / or braking device

Abstract

The present disclosure relates to a housing part for a pneumatic clamping and / or braking device, the housing part comprising: an annular recess for clamping an annular spring plate between a first contact surface and a second contact surface of the housing part, both the first contact surface and the second contact surface being defined by the recess; the clamping element comprises a clamping surface, when the spring plate is clamped in a concave part between a first contact surface and a second contact surface, the first end of the spring plate is supported on the first contact surface, the spring plate extends from the first contact surface to the second contact surface, and the second end of the annular spring plate is pressed on the second contact surface; the clamping surface is designed to transmit a clamping force and / or a braking force to an object to be clamped and / or braked; wherein the housing part comprises a first engagement element and a second engagement element, the first engagement element being designed to engage a first end of the spring plate on the first contact surface and the second engagement element being designed to engage a second end of the spring plate on the second contact surface when the spring plate is clamped in the recess between the first contact surface and the second contact surface. The disclosure also relates to a clamping and / or braking device for clamping and / or braking an object to be clamped and / or braked, comprising two housing parts.

Description

Technical Field

[0001] The present disclosure relates to a housing component for a pneumatic clamping and / or braking device, and a pneumatic clamping and / or braking device having the housing component. Background Art

[0002] In the production of tools or machine parts, machining machines are used, in particular working spindles or other machines, which process the material of a workpiece with the aid of a tool fixed to an axis, in particular in order to machine the workpiece into a desired shape. The axis can be the axis of rotation or pivot of the machine. In addition, a rotatable or pivotable table places the tool or workpiece in a suitable machining position or rotates the workpiece at a corresponding rotation speed via the axis. Here, a prerequisite for precise and efficient machining is, in particular, high-speed rotation of the axis. Therefore, the role of the emergency or safety system is to prevent the rotation of the axis in the event of a malfunction or failure of the system, such as a power outage or cable break, or the axis needs to be held and therefore secured in a required fixed position.

[0003] Conventional processing equipment has electromagnetic, hydraulic or pneumatic clamping and / or braking devices. Such devices have friction pads that can be frictionally connected to the shaft in a force-transmitting manner. Therefore, it becomes possible to fix the rotating shaft at different speeds.

[0004] As for hydraulic clamps, the chamber is acted upon by hydraulic oil and clamps the rotating shaft or disc. Passive hydraulic clamps are also well known. However, such hydraulic clamps either have a long reaction time or require high costs for a shorter reaction time. In addition, hydraulic materials, especially hydraulic valves and hydraulic pipes, are expensive and require a long time to assemble. Moreover, the hydraulic oil requires additional costs for keeping the environment around the hydraulic clamp clean.

[0005] As for the pneumatic clamping and / or braking device, its elastic member, in particular the elastic plate, is usually acted upon by compressed air and can overcome part of the above-mentioned defects of the hydraulic clamping device.

[0006] EP 1 585 616 B1 and EP 1 651 881 B1 disclose pneumatic clamping devices with two annular spring plates, which are arranged in the housing of the clamping device, thereby forming a pressure space therein, which can be acted upon by compressed air or inflated or vented to change the degree of curvature of the spring plates and thus switch the clamping device between a closed state, in which the part to be clamped is clamped like a rotating shaft, and an open state, in which the part to be clamped is free. However, practice has shown that the desired opening and closing function of the pneumatic clamping device cannot be realized axisymmetrically on the circumference of the annular spring plates. As a result, for example, an uneven clamping force distribution and resulting damage to the shaft are observed on the circumference of the shaft. Summary of the invention

[0007] Based on the above introduction to the prior art, the purpose of the present disclosure is to enable the pneumatic clamping and / or braking device to reliably achieve its desired symmetrical opening and closing functions.

[0008] This object is achieved by a housing part comprising the features of claim 1 and a clamping and / or braking device comprising the features of claim 15. Preferred embodiments are described in the dependent claims, the description, 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: an annular recessed portion for clamping an annular spring plate between a first contact surface and a second contact surface of the housing component, the first contact surface and the second contact surface being both defined by the recessed portion; a clamping element comprising a clamping surface, wherein when the spring plate is clamped in the recessed portion between the first contact surface and the second contact surface, the first end of the spring plate is supported on the first contact surface, the spring plate extends from the first contact surface to the second contact surface, the second end of the annular spring plate is pressed on the second contact surface, and the clamping surface is designed to transmit the clamping and / or braking force to an object to be clamped and / or braked; wherein the housing component comprises a first locking member and a second locking member, wherein when the spring plate is clamped in the recessed portion between the first contact surface and the second contact surface, the first locking member is designed to lock the first end of the spring plate on the first contact surface, and the second locking member is designed to lock the second end of the spring plate on the second contact surface.

[0010] According to the solution of the present invention, a pneumatic clamping and / or braking device is also provided for clamping and / or braking an object to be clamped and / or braked, the device comprising: a housing, comprising 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 correspondingly and fixed to each other, so that the recessed portions of the first and second housing components jointly form an internal space in the housing; a spring (e.g., a bending spring, such as a leaf spring), arranged in the internal space, comprising a first annular spring plate (e.g., a bending spring, such as a leaf spring) and a second annular spring plate (e.g., a bending spring, such as a leaf spring), wherein the spring plate is arranged in the internal space, so that at least one pressure space is formed in the internal space, the pressure space being at least partially defined by the spring plate, wherein the pressure space can be inflated or exhausted and can be acted upon by a positive pressure of a pressure transmission medium (e.g., compressed air) that can be input into the housing, wherein the first spring plate is clamped between a first contact surface of the first housing component and a first outer wherein the first end of the first spring plate is locked by the first locking member of the first housing component and the second end of the first spring plate is locked by the second locking member of the first housing component; wherein the second spring plate is clamped between the first contact surface of the second housing component and the second contact surface of the first housing component, wherein the first end of the second spring plate is locked by the first locking member of the second housing component and the second end of the second spring plate is locked by the second locking member of the second housing component; wherein the spring plate is arranged corresponding to at least one pressure space, wherein the degree of bending (e.g., lateral bending; bending perpendicular to the longitudinal axis of the spring plate; the longitudinal axis connecting the two ends of each spring plate) of at least one of the spring plates is variable by inflating or exhausting the pressure space or applying a positive pressure to the pressure space, so that the device switches between an open state and a closed state, in which the object is separated from the clamping surface; in which one or more of the clamping surfaces transmit a clamping and / or braking force to the object in the closed state. For example, the device can be switched from a closed state to an open state and vice versa. In the open state of the device, the object is freely movable (e.g., freely rotatable about the rotation axis or linearly movable along the rotation axis), while in the closed state of the device, the object is clamped and / or braked and is therefore not freely movable (e.g., cannot rotate about the rotation axis or linearly movable along the rotation axis).

[0011] The present disclosure is based on the discovery by the inventors that the axial positioning of the spring plate in the housing of the clamping and / or braking device is of decisive importance for the opening and closing function of the clamping and / or braking device. In particular, the inventors have found that, hitherto, the axial positioning of the spring plate during assembly has been decisively dependent on the axial pressing-in pressure, so that the spring plate can easily be in different axial positions in the housing. The inventors have found that, in order to reliably achieve the desired symmetrical opening and closing function of the clamping and / or braking device, a well-defined and symmetrical positioning of the spring plate in the housing must be reliably achieved. Hitherto, the axial pressing of the spring into the housing during assembly has required a high degree of well-defined and symmetrical positioning of the spring plate in the housing, which has proven difficult and expensive to achieve in practice.

[0012] In this context, the inventors believe that a housing component realizes a predetermined axial positioning of a spring plate in a housing of a pneumatic clamping and / or braking device, which comprises a first locking element and a second locking element, and is designed so that each locking element is locked at the other end of the clamped spring plate, and the predetermined axial positioning no longer depends decisively on the axial pressing pressure during assembly, but realizes a repeatable, clear and symmetrical positioning of the spring plate in the housing of the clamping and / or braking device. Practice has shown that these locking elements can even simplify the assembly process of the spring plate. In addition, the locking elements have the following beneficial effects, for example, the sealing in the housing is improved, so that the locking elements have various positive effects on the operation of the entire system of the clamping and / or braking device.

[0013] The first locking element preferably comprises a first projection and a first stop, the projection and the first stop each defining a first contact surface, so that the first locking element is designed to lock the first end of the spring plate between the first projection and the first stop in the region of the first contact surface. The second locking element may preferably comprise a second projection and a second stop, the second projection and the second stop each defining a second contact surface, so that the second locking element is designed to lock the second end of the spring plate between the second projection and the second stop in the region of the second contact surface. This special embodiment of the first and second locking elements locks the annular spring plate particularly effectively, while facilitating the insertion of the spring plate into the housing component, without requiring the housing to be provided with additional components or materials, which is beneficial for production and assembly.

[0014] Each raised portion may include a height transition piece, which is located at the transition between the raised portion and the associated or adjacent contact surface. Each raised portion may include a step or a ramp portion as a height transition piece. The ramp portion may be an inclined plane, or a ramp of other shapes, such as a curved surface. However, other configurations for the raised portion are conceivable.

[0015] Particularly preferably, in the radial direction of the annular recess, the projections can protrude into the recess by 0.025 mm to 0.15 mm, preferably 0.05 mm to 0.1 mm, particularly preferably 0.1 mm or 0.05 mm relative to the contact surface. Compared to the conventional disadvantage of shortening the spring during operation, such projections are particularly advantageous for, on the one hand, reliable locking of the spring plate and, on the other hand, for simplifying the insertion of the spring plate into the housing component.

[0016] The annular recess may define an annular opening in the housing component, wherein the annular opening is formed between the first annular edge of the housing component and the second annular edge of the housing component. The first protrusion may preferably be arranged between the first annular edge and the first contact surface on the inner side of the housing component in the region of the recess, and optionally, the first protrusion may extend from the first annular edge as far as the first contact surface. The height transition piece of the first protrusion may be adjacent to the first contact surface. The height transition piece (e.g., a step or ramp) of the first protrusion may preferably be arranged at a distance from the first annular edge on the inner side of the housing component in the region of the recess, the distance being 1 mm to 1.8 mm, preferably 1 mm to 1.5 mm, particularly preferably 1.2 mm or 1.1 mm, and the extension distance of the first protrusion may exceed the distance. The first protrusion may extend from the first annular edge to the height transition piece. The second protrusion may preferably be arranged between the second annular edge and the second contact surface on the inner side of the housing component in the region of the recess, and optionally, the second protrusion may extend from the second annular edge to the second contact surface. The height transition piece of the second protrusion may be adjacent to the second contact surface. The height transition of the second protrusion (e.g., a step or ramp) can be preferably arranged at a distance from the second annular edge on the inner side of the housing component in the area of ​​the recessed portion, the distance being 1 mm to 1.8 mm, preferably 1 mm to 1.5 mm, particularly preferably 1.2 mm or 1.1 mm, and the extension distance of the second protrusion can exceed this distance. The second protrusion can extend from the second annular edge to the height transition.

[0017] Such a projection, step or ramp is particularly advantageous, relative to the operating parameters of conventional clamping devices, for, on the one hand, a secure positioning of the spring plate in the recess or housing and, on the other hand, for a simplified insertion of the spring plate into the housing part.

[0018] The distance between the first protrusion and the first stop and the distance between the second protrusion and the second stop can each be 1 mm to 1.5 mm, 1.1 mm to 1.4 mm, preferably 1.2 mm, which is particularly suitable for effective locking of springs with conventional thickness and conventional rubber coating.

[0019] If this brief description of the present disclosure describes features that are not recorded in the claims, these features do not constitute essential features of the present invention insofar as essential features must be included in the claims, but these features are particularly preferred embodiments of the claimed invention, and these technical features may be combined with the claims or with each other according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A A schematic cross-sectional view of a passive pneumatic clamping / braking device provided by the present invention, oriented inwardly in a closed state.

[0021] Figure 1B A schematic cross-sectional view of a passive pneumatic clamping / braking device provided by the present invention, oriented outward in a closed state.

[0022] Figure 2A A schematic cross-sectional view of a passive pneumatic clamping / braking device provided by the present invention, oriented inwardly in an open state.

[0023] Figure 2B A schematic cross-sectional view of a passive pneumatic clamping / braking device provided by the present invention, oriented outward in an open state.

[0024] Figure 3A A schematic cross-sectional view of an active pneumatic clamping / braking device provided by the present invention, oriented inwards in an open state.

[0025] Figure 3B A schematic cross-sectional view of an active pneumatic clamping / braking device provided by the present invention, oriented outward in an open state.

[0026] Figure 4A A schematic cross-sectional view of an active pneumatic clamping / braking device provided by the present invention, oriented inwards in a closed state.

[0027] Figure 4B A schematic cross-sectional view of an active pneumatic clamping / braking device provided by the present invention, oriented outward in a closed state.

[0028] Figure 5A A three-dimensional cross-sectional schematic diagram of a pneumatic clamping / braking device provided by the present invention.

[0029] Figures 5B-5D For Figure 5A Schematic diagram of a variant solution according to the prior art with the housing parts removed.

[0030] Figure 6A-6B In the upper area of ​​each figure, as shown in Figures 5B-5D FIG. 2 shows a schematic diagram of a variant of a housing component according to the prior art.

[0031] Figure 6A-6B The lower part of each figure shows the Figure 5A Schematic diagram of a variant solution provided by the present invention with the housing component removed.

[0032] Components shown in several figures are provided with the same reference numerals. DETAILED DESCRIPTION

[0033] The present application relates to a housing component for a pneumatic clamping and / or braking device, and to a pneumatic clamping and / or braking device having the housing component according to the invention.

[0034] When this article refers to a "clamp" or "clamping device", "clamping force" or the process of "clamping", the process of installing a "brake" or "brake device" or "braking force" or "braking" is also included.

[0035] Figures 1A to 5A Various cross-sectional schematic diagrams of a pneumatic clamping device 10 provided according to the present invention are shown. The pneumatic clamping device 10 includes a housing 3 and a spring 1 arranged in the housing 3. The spring 1 includes at least two annular spring plates 1a and 1b. The housing 3 includes two housing parts 3a and 3b.

[0036] The pneumatic clamping device 10 according to the invention comprises: a housing 3, the housing 3 comprising a first housing component 3a and a second housing component 3b according to the invention as shown below with reference to Figure 6A-6BFurther described, wherein the two housing components 3a, 3b are arranged relative to each other and fixed to each other, so that the recesses of the first housing component 3a and the second housing component 3b form an internal space 13 in the housing 3; the spring 1 arranged in the internal space 13 includes a first annular spring plate 1a and a second annular spring plate 1b, wherein the annular spring plates 1a, 1b are arranged in the internal space 13, so that at least one pressure space 2, 4 is formed in the internal space 13, and the pressure space is at least partially delimited by the annular spring plates 1a, 1b, wherein the pressure space 2, 4 can be inflated or exhausted (through openings I, II, optionally, the connection with the compressed air pump 6) and can be acted upon by the positive pressure of the pressure medium that can be input into the housing 3, wherein the first annular spring plate 1a is clamped between the first contact surface 101 of the first housing component 3a and the second contact surface 102 of the first housing component 3a, so that the first end of the first annular spring plate 1a is locked by the first locking member 110 of the first housing component 3a and the first annular spring plate 1a is locked by the first locking member 110 of the first housing component 3a The second end of the spring plate 1a is locked by the second locking piece 120 of the first housing component 3a; wherein the second annular spring plate 1b is clamped between the first contact surface 101 of the second housing component 3b and the second contact surface 102 of the second housing component 3b, so that the first end of the second annular spring plate 1b is locked by the first locking piece 110 of the second housing component 3b and the second end of the second annular spring plate 1b is locked by the second locking piece 120 of the second housing component 3b, and wherein the annular spring plates 1a, 1b are arranged relative to at least one pressure space 2, 4 so that by inflating or exhausting the pressure space 2, 4 or applying positive pressure to the pressure space 2, 4, the bending degree of at least one of the annular spring plates 1a, 1b can be changed and the pneumatic clamping device 10 can be switched between an open state and a closed state. In the open state, the object 5 is not in contact with one or any one clamping surface 7 but is spaced from the clamping surface 7, and in the closed state, one or more clamping surfaces 7 transmit clamping and / or braking force to the object 5. For example, the pneumatic clamping device 10 can thereby be switched from a closed state to an open state and vice versa.

[0037] Figure 1A-1B , Figure 4A-4B The pneumatic clamping device 10 is shown in each case in the closed state, for which the clamping surface 7 of the clamping element 8 is in contact with the circumference of the object 5. The clamping element 8 is also referred to as a clamping lip. The clamping element 8 can be integrally formed with other parts of the housing parts 3a, 3b or can be a structurally independent component of the housing parts 3a, 3b.

[0038] The clamping force or clamping effect of the clamping surface 7 on the object 5 to be clamped is realized on the clamping plane, which is extended by two vectors, the directions of which respectively constitute the radius of the annular spring plate 1a, 1b or the annular recess 11 (see Figure 5A). The axis 9 can be referred to as the main axis of the pneumatic clamping device 10, which extends perpendicular to the clamping plane. The pneumatic clamping device 10 can be configured to be rotationally symmetrical about the main axis 9. The main axis 9 can be formed through an opening ( Figure 5B The opening 14) in the ? extends approximately or exactly in the center. Figure 1A , Figure 4A The object 5 to be clamped, for example a rotatable shaft of a machine tool or a workbench, is placed in the opening 14 and the clamping force of the clamping device is thus directed radially inwards in the clamping plane towards the main axis 9 (perpendicularly to the main axis 9). Figure 1B , Figure 4B , the object 5 to be clamped is placed outside the pneumatic clamping device 10 and the clamping force of the clamping device is therefore directed radially outwards away from the spindle 9 in the clamping plane (perpendicular to the spindle direction 9 ).

[0039] exist Figure 1A , Figure 2A , Figure 3A , Figure 4A In the embodiment, the clamping element 8 is located between the spring 1 and the opening 14 or the main axis 9. Figure 1B , Figure 2B , Figure 3B , Figure 4B In contrast, 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 main axis 9. Figure 1B , Figure 2B , Figure 3B , Figure 4B In the embodiment, a component can be introduced into the opening 14 instead of the object 5 to be clamped, the component at least partially fills the opening 14 and the spindle 9 extends through the component.

[0040] exist Figures 1A to 5A In each case, the spring 1 is clamped between two contact surfaces ( Figure 5C and Figure 5D 101 and 102) and extends between the two contact surfaces. Figures 1A to 2BIn the embodiment, the device 10 is in a pressure-free initial state, and the spring 1 can be slightly bent so as to be fixed in the housing 3 in this state. The same applies to any other state of the device 10, wherein the degree of bending of the spring 1 depends on the state of the device 10. If the device 10 is in a state in which the spring 1 is bent (for example, the degree of bending is much greater than in the pressure-free initial state, such as in the open state), when the spring 1 presses against the radial contact surface, the exhaust of the internal pressure space 2 of the spring 1 and the inflation of the external pressure space 4 will cause at least partial relaxation of the spring 1, and the spacing between the radial contact surfaces will increase, so that the housing 3 will be 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 presses against the object 5 with a (predefined) clamping force to clamp the object 5. As shown in FIG. Figure 1A and Figure 1B As shown, the object 5 is clamped and the clamping device 10 is in the closed state. In the closed state of the device 10, the spring 1 can still be slightly bent even after partial relaxation, so that it is fixed in the housing 3 in this state.

[0041] The clamping element 8 can be an elastic element, such as a spring fork, which in the unstressed initial state of the device 10 is brought from a relaxed initial position of the elastic element into a stretched position by the elastic force of the (slightly) bent spring 1, for example by bending the spring fork 8, until a balance is reached between the restoring force of the elastic element 8 and the elastic force of the spring 1 in the unstressed initial state. In this balance, the clamping surface 7 can be pressed against the object 5.

[0042] In the closed state, the clamping force can optionally be increased by a predetermined value by additionally applying compressed air (eg at a pressure of 4 bar or 6 bar) in the external pressure space 4. Figure 1A and Figure 1B , which can be achieved by an optional additional compressed air pump (booster) 6 and incubation (compressed air) in the external pressure space 4. The external pressure space 4 can be connected to an air interface II (also called "closure") via an opening in the housing 3, which can be connected to a compressed air pump 6.

[0043] For example, this makes it possible to drive the device 10 in such a way that the object 5 acting on it is switched between braking (in the unpressurized state) and fully clamping (if sufficient pressure is applied).

[0044] Although two pressure spaces 2 , 4 are shown and described by way of example, the clamping device 10 can also be operated with a single pressure space, for example being driven solely with the inner pressure space 2 or the outer pressure space 4 .

[0045] Figure 2A and Figure 2B Shows Figure 1A and Figure 1BThe pneumatic clamping device 10 in the embodiment is in an open state, and the clamping surface 7 does not contact the circumference of the object 5 or is spaced from the circumference of the object 5. The internal pressure space 2 can be connected to an air interface I (also called "open") through an opening in the housing 3, and the air interface I can be connected to a compressed air pump 6.

[0046] Compressed air (e.g., 4 bar or 6 bar) is applied to the internal pressure space 2 by a compressed air pump 6, while the external pressure space 4 is exhausted. Figure 1A and 1B Compared to the closed state in the embodiment, the spring 1 is bent or stretched more strongly (convex), the spring 1 is radially shortened or the distance between the two contact surfaces is radially shortened. The clamping surface 7 is lifted off the object 5 to be clamped to cancel the clamping. The object 5 is freely movable (for example, rotating around the axis 9 or linearly moving along the axis 9), and the device 10 is opened.

[0047] It is possible for the pneumatic clamping device 10 to be switched back and forth between the closed state and the open state.

[0048] The pneumatic clamp 10 has many advantages over hydraulic clamps.

[0049] By using a combination of elastic parts, in this case the spring 1 together with the spring plates 1a, 1b and compressed air, for example, a rapid switch between the open and closed state can be achieved and a safe clamping of the object 5 can also be achieved. Preferably, the spring 1 is a plate-shaped structure, the details of which are shown in FIG5, wherein the two spring plates 1a, 1b are located one on top of the other to form the spring 1 and the internal pressure space 2 of the spring 1 between the plates 1a, 1b. As shown in FIG5, the plates 1a, 1b can also be annular structures; optionally, the plates 1a, 1b additionally have radial grooves so that the inner diameter can be changed under the action of particularly small forces. In order to produce the required tightness of the compressed air, the spring plates 1a, 1b can be coated with rubber at least in the area of ​​the grooves. The spring plates 1a, 1b can also be completely covered with rubber. The spring plates 1a, 1b are usually designed to be very pressure-resistant and very elastically bendable, and are arranged in the housing 3 of the clamping device 10, so that an internal pressure space 2 is formed in the spring 1 between the spring plates 1a, 1b, and an external pressure space 4 is formed between each spring plate 1a, 1b and the housing 3 or the housing parts 3a, 3b of the clamping device 10. FIG. 5 shows Figure 1A and Figure 2A A similar perspective view of a clamping device 10 .

[0050] like Figure 1AAs shown, the external pressure space 4 is exhausted or inflated by compressed air, the internal pressure space 2 is exhausted, the spring 1 is at least partially relaxed, and a clamping force is generated on the object 5 to be clamped, especially on the circumference of the shaft 5. Therefore, in the event of energy or pressure failure, the object 5 is clamped or the shaft 5 is immediately stopped, thereby providing safe clamping. Depending on the size, this pneumatic clamp 10 can achieve different holding torques of hundreds to thousands of nanometers, which can be further increased by supplementing compressed air to the external pressure space 4 with a pressure pump 6 (booster), as shown in Figure 1A. At this time, without using a booster, compressed air with a lower pressure (for example, 4 bar or 6 bar) is sufficient to achieve a variety of holding torques. In this case, when the clamp 10 switches between the open state and the closed state, the small lateral (perpendicular to its longitudinal axis) bending of the spring plates 1a, 1b can generate a large elastic force, which can be used to clamp or release the pre-tightened clamping device 10. Therefore, safe clamping and release of the fast-rotating machine tool axis 5 are achieved.

[0051] Compared with hydraulic materials, the cost of pneumatic materials and assembly costs are lower, and the use of compressed air does not increase the additional cost of production and cleaning of the system. This pneumatic clamp can be set to a smaller size overall, because the spring only needs a smaller lateral bending degree and a smaller longitudinal extension length to exert the required clamping force, so the pressure space is smaller.

[0052] For pneumatic clamps, Figures 1A to 2B The passive pneumatic clamping device 10 and FIG. 3A to FIG. 4B The active pneumatic clamping device 10 shown is differentiated in principle.

[0053] In the unpressurized initial state, the spring 1 can be bent (laterally) to different degrees and can therefore be shortened radially to different degrees. The inner side of the housing 3 can be adapted to the degree of bending of the spring plates 1a, 1b or can limit the degree of bending of the spring plates 1a, 1b. For example, a corresponding stop surface for the spring plates 1a, 1b can be formed by the inner wall of the housing, and the inner wall of the housing (e.g., concave surface) can be designed to complement the bending shape (e.g., convex surface) of the spring plates 1a, 1b.

[0054] For the passive clamping device 10, in the initial state without pressure, the spring 1 is generally slightly elastically bent (e.g., convex) or prestressed, and the clamping device 10 can be closed ( Figure 1A and Figure 1B The clamping device 10 can only be opened by applying compressed air from the inside to the internal pressure space 2 ( Figure 2A and Figure 2B) force. Usually, the spring 1 will bend to a certain extent in the initial state without pressure, and as a result, when clamped or under pressure, the elastic force stored in the spring 1 due to deformation is transmitted to the object 5 to be clamped as the clamping force of the clamped object 5.

[0055] For the active clamping device 10, in the pressure-free initial state (refer to Figure 3A and Figure 3B ), the bending degree of the spring 1 is stronger than that of the passive clamping device, in particular it bulges outward more laterally, resulting in a shortening of the distance between the two radial contact surfaces and the opening of the clamping device 10. No clamping force is generated on the object 5 by 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.

[0056] Due to the plastic deformation of the spring plates 1a, 1b, in the unpressurized initial state, the spring 1 can bend more strongly laterally outwards in the same housing 3 and thus shorten radially to a greater extent than with a passive clamping device. This smaller radial length of the spring plates 1a, 1b in the unpressurized initial state results in the clamping device 10 being in the open state in the unpressurized initial state. Even in the case of plastic deformation, the spring plates 1a, 1b bend elastically and press against the contact surface, thereby fixing the spring in the housing. In the initial state, the inner or recessed part of the housing can be adapted to a curvature that can produce a greater plastic deformation.

[0057] like Figure 4A and Figure 4B As shown, at this time, the clamping force must be actively introduced from the outside in order to switch the clamp to the closed state. Here, compressed air is introduced into the external pressure space 4 by the compressed air pump 6, so the spring 1 is acted upon by the compressed air filled from the outside, so that the spring 1 actively relaxes, the curvature of the spring 1 decreases, the distance between the two contact surfaces increases, and the housing 3 elastically deforms 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, so that the object 5 is clamped. Then the active pneumatic clamping device 10 is in a closed state.

[0058] Depending on the area of ​​application and the prescribed safety regulations, active or passive clamping devices 10 can be used. If a safe clamping is primarily required, a passive clamping device is generally used. With such a pneumatic passive clamping device, it is possible to generate a predetermined clamping force and act on the object 5 to be clamped even in the pressure-free state during the corresponding assembly of the entire device. Due to the application of positive or negative pressure, the force transmitted to the object can be increased, reduced or completely eliminated, which opens up a wide range of applications. In contrast, if the clamping device is primarily required for a special working operation, such as changing a tool, an active clamping device is generally used.

[0059] like Figure 5A As shown, the housing 3 of the clamping device 10 according to the present invention comprises two housing parts 3a, 3b according to the present invention, which are fixedly mounted to each other by means of fastening means (such as screws), so that in the mounted state, inside the housing 3, the two housing parts 3a, 3b define an inner space 13 between the housing parts 3a, 3b, so that the spring 1 and the annular spring plates 1a, 1b are arranged in the housing 3 at the same time. Figure 5A and Figure 5B As shown, the housing parts 3a, 3b each define a recess 11, which is also annular and is used to accommodate the annular spring plates 1a, 1b. At least the first contact surface 101 can be partially moved in a radial direction R (substantially) perpendicular to the annular recess 11, and / or the second contact surface 102 can be partially moved in a radial direction R (substantially perpendicular to) the annular recess 11.

[0060] Opening 14( Figure 5B ) extends through the center of the housing 3, and the object 5 to be clamped (e.g. a shaft) can be introduced into the opening 14. The housing can extend up to 360° around the opening and at least partially surround the object 5 in at least one plane, which is called the clamping plane. The center axis 9 of the clamping device extends centrally through the opening 14 and is perpendicular to the clamping plane. Figure 1A , Figure 2A , Figure 3A , Figure 4A ,and Figure 5A In the clamping device of the embodiment of the present invention, the main axis 9 extends centrally through the shaft along its longitudinal axis.

[0061] One or more clamping surfaces 7 are provided along the circumference of the housing 3 or the opening 14. 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 outer circumference 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 the risk of damaging the object 5, the clamping force needs to be symmetrically distributed along the clamping surface 7 or along the circumference of the object 5 to be clamped. Asymmetrical distribution of the clamping force may cause damage to the object 5. Preferably, one or both of the contact surfaces 101, 102 are circular in structure within the clamping plane. Preferably, the clamping surface 7 is a circular in structure within the clamping plane. The clamping element 8 may be an annular structure. All annular or circular components described herein may use the intersection of the main axis 9 and the clamping plane (such as the center point of the opening 14) as the center point, either individually or in combination.

[0062] Figure 5B One of the two housing parts 3a, 3b is shown (here Figure 5AThe upper housing part 3a) and one of the two spring plates 1a, 1b of the spring 1. The spring plate 1a of the spring 1 shown extends from a first contact surface 101 in the housing part 3a to a second contact surface 102 in the housing part 3a and can contact the second contact surface. From the perspective of the center point of the opening 14, in this case, the first contact surface 101 is radially arranged farther outside than the second contact surface 102.

[0063] Figure 5C Shows Figure 5B A portion of the housing component 3 a in the embodiment of the present invention, wherein the upper plate 1 a of the spring 1 is in contact with the first contact surface 101 , preferably, in contact with the first contact surface 101 . Figure 5D Shows Figure 5B The upper plate 1a of the spring 1 is close to the second contact surface 102, preferably in contact with the second contact surface 101. However, it is also possible that one or more components for the spring plate 1a to apply elastic force on the contact surfaces 101, 102 are radially arranged between the spring plate 1a and one or more contact surfaces 101, 102.

[0064] like FIG. 5B to FIG. 5D As shown, in this case, the housing part 3a has a shape that has already been used in the prior art. Figure 5B , Figure 5D As shown, the spring plate 1a is clamped in a recess between the inner sides of the housing parts 3a, which are of straight or flat design. During installation along the straight or flat inner sides of the housing parts 3a, the plates of the spring 1 are introduced into the recess 11 of the respectively associated housing part in the direction of the main axis 9 of the clamping device 10 through the opening 12 until the respective plate at the end of the two contact surfaces 101, 102 abuts against the stops 112, 122 and cannot be introduced further into the recess 11. Since the extension of the spring plate 1a in the clamping plane or in the radial direction of the annular recess is greater than the inner extension defined by the housing parts, the plate 1a is bent or prestressed in the unstressed initial state.

[0065] However, since the positioning of the spring plates 1a, 1b of the spring 1 during assembly is found to be a function of the axial press-in force, the spring plates 1a, 1b of the spring 1 are not always positioned axially in the same manner in the housing parts 3a, 3b. The spring plates 1a, 1b can be introduced into the housing parts obliquely, at different depths or bent to different degrees. Since this has a decisive effect on the opening and closing functions of the clamping device 10, changes in the position of the plates 1a, 1b in the housing parts lead to changes in these functions, in particular to asymmetric distribution of the clamping force along the circumference of the opening in the clamping surface or clamping plane, which is detrimental to an effective, lasting clamping action and the integrity of the object.

[0066] Fig. 6A and Figure 6B The lower half of the embodiment shows the housing parts 3a, 3b according to the invention, and the housing parts 3a, 3b according to the invention. Figure 5C and Figure 5D Compared with the traditional shell parts in Fig. 6A and Figure 6B It is shown again in the upper part of the text for comparison.

[0067] The housing parts 3a, 3b according to the present invention comprise: an annular recess 11 for clamping an annular spring plate 1a, 1b between a first contact surface 101 and a second contact surface 102 of the housing parts 3a, 3b, the first contact surface 101 and the second contact surface 102 being defined by the recess 11; a clamping element 8 comprising a clamping surface 7, when the spring plate 1a, 1b is clamped in the recess 11 between the first contact surface 101 and the second contact surface 102, such that a first end of the spring plate 1a, 1b is supported on the first contact surface 101, and the spring plate 1a, 1b extends from the first contact surface 101 to the second contact surface 102. , the second ends of the annular spring plates 1a, 1b are pressed against the second contact surface 102, and the clamping surface 7 is designed to transmit the clamping and / or braking force to the object to be clamped and / or braked; wherein the housing parts 3a, 3b include a first locking member 110 and a second locking member 120, wherein, when the spring plates 1a, 1b are clamped in the recessed portion 11 between the first contact surface 101 and the second contact surface 102, the first locking member 110 is designed to lock the first ends of the spring plates 1a, 1b on the first contact surface 101, and the second locking member 120 is designed to lock the second ends of the annular spring plates 1a, 1b on the second contact surface.

[0068] Please refer to Fig. 6A In the lower half of the spring plate 1a, a protrusion 111 according to the present invention is preferably provided as a part of the first locking member, and the protrusion 111 defines the first contact surface 101. When the spring plate 1a is inserted into the housing component 3a in a direction parallel to the main axis 9, the first end of the spring plate 1a must therefore overcome the protrusion 111, but as a result, after the protrusion 111 is overcome, the plate 1a is arranged in a determined manner between the stop 112 and the protrusion 111 in the direction of the main axis 9. The spring plate 1a is locked between the stop 112 and the protrusion 111 in the area of ​​the first contact surface 101, and can preferably contact the protrusion. The protrusion 111 can be step-shaped or slope-shaped, or other shapes with the same function. Figure 6BAs shown in the lower half of the drawing, the same applies to the second contact surface 102 according to the present invention, which is also preferably defined by the protrusion 121. Before the spring plate 1a is arranged in a determined manner between the stop 122 and the protrusion 121 and locked between the stop and the protrusion in the area of ​​the second contact surface 102, the second end of the spring plate 1a must overcome the protrusion 121 when the spring plate is inserted in a direction parallel to the main axis 9. The second end of the spring plate 1a can preferably contact the second contact surface 102 when locked. The protrusion 121 can be stepped or ramped, or other shapes with the same function.

[0069] like Figures 1A to 6B As shown, in particular, whether the clamping force acts inward ( Figure 1A and Figure 2A ) or outward acting ( Figure 1B and Figure 2B ), the first protrusion 111 and the first stop are farther from the object to be clamped 5 than the second protrusion 121 and the second stop 122. The first protrusion 111 and the first stop 112 can be arranged opposite to the clamping element 8 in the housing parts 3a, 3b, while the second protrusion 121 and the second stop 122 can be arranged in the area of ​​the clamping element 8 or can be a part of the clamping element 8. The extension distance of the first stop 112 in the radial direction R of the annular recess 11 can be greater than that of the first protrusion 111 ( Fig. 6A and Figure 5B ) is longer. From, or relative to, the first contact surface 101, the first protrusion 111 may protrude in the radial direction R of the annular recess 11 by 0.025 mm to 0.15 mm, preferably by 0.05 mm to 0.1 mm, and particularly preferably by 0.1 mm (for example, into the recess 11).

[0070] The extension distance of the second stopper 122 in the radial direction R of the annular recess 11 may be greater than that of the second protrusion 121 (refer to Figure 6B and Figure 5B ) is longer. From or relative to the second contact surface 102, the second protrusion 111 may protrude in the radial direction R of the annular recess 11 by 0.025 mm to 0.15 mm, preferably by 0.05 mm to 0.1 mm, and particularly preferably by 0.05 mm (for example, into the recess 11).

[0071] The annular recess 11 may define an annular opening 12 in the housing parts 3a, 3b (in the clamping plane), wherein the annular opening 12 is formed between a first annular edge 12a of the housing part and a second annular edge 12b of the housing part, and wherein the annular opening 12 is used to insert the annular spring plate 1a into the recess 11. The first protrusion 111 may be arranged on the inner side of the housing part 3a in the region of the recess 11 between the first annular edge 12a and the first contact surface 101 and may protrude into the recess 11. The second protrusion 121 may be arranged on the inner side of the housing part in the region of the recess 11 between the second annular edge 12b and the second contact surface 102 and may protrude into the recess 11 ( Fig. 6A and 6B )middle.

[0072] The protrusion 111 and the stop 112 may define a recess in the housing component 3a, in which the first end of the spring plate 1a may be locked, wherein the first contact surface 101 may form a part of the recess. The protrusion 121 and the stop 122 may define a recess in the housing component 3a, in which the second end of the spring plate 1a may be locked, wherein the second contact surface 102 may form a part of the recess.

[0073] The distance between the step or slope of the first protrusion 111 and the first annular edge 12a can be 1 mm to 1.8 mm, preferably 1.1 mm to 1.5 mm, more preferably 1.2 mm or 1.1 mm. The distance between the step or slope of the second protrusion 121 and the second annular edge 12b can be 1 mm to 1.8 mm, 1.1 mm to 1.5 mm, preferably 1.2 mm or 1.1 mm.

[0074] The distance between the first protruding portion 111 and the first stopping portion 112 and the distance between the second protruding portion 121 and the second stopping portion 122 may be 1 mm to 1.5 mm, 1.1 mm to 1.4 mm, and preferably 1.2 mm.

[0075] By creating the locking elements 110, 120 in the region of the two contact surfaces 101, 102, preferably by means of the projections 111, 121, optionally also in cooperation with the optional stops 112, 122, a (particularly axial) fixing position is created for the spring plates 1a, 1b. Due to this fixing position, the spring plates 1a, 1b are mounted in a stable manner, in particular the fixing position is axially defined in a defined manner in a direction parallel to the main axis 9 of the pneumatic clamping device 10. As a result, the position of the spring plates 1a, 1b in the housing parts 3a, 3b is no longer determined as a function of the axial pressing force. Due to the clearly defined (axial) position of the spring plates 1a, 1b of the spring 1, the curvature of the spring plates 1a, 1b is also well defined in a good manner, as is desired in the unpressurized state.

[0076] Due to the locking elements 110, 120, the two spring plates 1a, 1b in the clamping device 10 can also be arranged evenly with a defined good distance from each other in the housing 3. The spring plates 1a, 1b can be positioned by the locking elements 110, 120, wherein the longitudinal axis of the locking elements is parallel to the clamping plane. The symmetrical functional structure achieved by the locking elements 110, 120 causes the spring 1 to generate symmetrical stresses over the entire circumference of the opening 14, so that the clamping force around the object 5 in the clamping plane is more evenly distributed.

[0077] Therefore, the opening and closing functions can be symmetrically and reliably realized by the locking members 110 and 120 on the circumference of the opening 14. Therefore, possible undesirable radial or axial movement of the housing 3 will not cause undesirable axial or radial geometric displacement on the clamping surface 7.

[0078] The inventors have also found that, due to the locking elements 110, 120, in particular the projections 111, 121, in addition to the axially symmetrical and better defined positioning of the plates 1a, 1b of the spring 1 in the housing, the sealing effect between the spring plates 1a, 1b and between the two housing parts 3a, 3b and the relevant plates 1a, 1b of the spring 1 is also improved. This improved sealing effect has a particularly beneficial effect when compressed air is added to the inner and outer pressure spaces 2, 4 in order to be able to switch the clamping device between the two aforementioned states. The locking elements 110, 120, in particular the projections 111, 121, improve the contact between the rubber coating of the plates 1a, 1b and the rubber coating of the plates 1a, 1b and the rubber coating of the respective housing parts 3a, 3b, thereby achieving a sealing effect.

[0079] The inventors have identified further additional benefits by creating locking members 110, 120, and in particular protrusions 111, 121. Thus, by adjusting the rubber thickness around the spring plates to define the position of the rubberized spring plates 1a, 1b, a targeted plate travel limit can be set to prevent improper application (e.g., zero crossing) of excessive operating pressure (especially in the presence of a booster), while reducing the required amount (volume) of compressed air, thereby increasing the opening and closing speed of the clamping device 10.

[0080] Preferred embodiments of the subject matter defined in the following claims are described in the specification and drawings. Optional features are disclosed in the above description, and the embodiments in the claims and drawings can be used alone or in any desired combination according to the various configurations of the appended claims.

[0081] The above aspects and embodiments can be combined with each other to create more embodiments. According to the description details of the above embodiments, the above embodiments can be changed in various ways to obtain other embodiments. In general, the terms used in the claims should not be understood as limiting the claims to the specific aspects and embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments within the scope of protection of the claims.

Claims

1. A housing component (3a, 3b) for a pneumatic clamping and / or braking device (10), the housing component (3a, 3b) include: an annular recessed portion (11) for clamping an annular spring plate (1a, 1b) between a first contact surface (101) and a second contact surface (102) of the housing component (3a, 3b), wherein the first contact surface (101) and the second contact surface (102) are both defined by the recessed portion (11); A clamping element (8) comprising a clamping surface (7), wherein when the spring plate (1a, 1b) is clamped in the recess (11) between the first contact surface (101) and the second contact surface (102), the first end of the spring plate (1a, 1b) is supported on the first contact surface (101), the spring plate (1a, 1b) extends from the first contact surface (101) to the second contact surface (102), and the second end of the spring plate (1a, 1b) is pressed against the second contact surface (102), and the clamping surface (7) is designed to transmit a clamping force and / or a braking force to an object (5) to be clamped and / or braked; It is characterized in that The housing components (3a, 3b) comprise a first locking member (110) and a second locking member (120), wherein, when the spring plates (1a, 1b) are clamped in the recess (11) between the first contact surface (101) and the second contact surface (102), the first locking member (110) is designed to lock the first end of the spring plates (1a, 1b) on the first contact surface (101), and the second locking member (120) is designed to lock the second end of the spring plates (1a, 1b) on the second contact surface (102).

2. The housing component (3a, 3b) according to claim 1, It is characterized in that The first locking member (110) is designed to keep the first end of the spring plate (1a, 1b) in a predetermined position relative to the first contact surface (101), in particular during the operation of the clamping and / or braking device (10); and / or the second locking member (120) is designed to keep the second end of the spring plate (1a, 1b) in a predetermined position relative to the second contact surface (102), in particular during the operation of the clamping and / or braking device (10).

3. The housing component (3a, 3b) according to any one of claims 1 to 2, It is characterized in that When the second end of the spring plate (1a, 1b) is pressed against the second contact surface (102), the housing parts (3a, 3b) are designed to undergo elastic deformation in the area of ​​the clamping element, so that the clamping surface (7) transmits the clamping force and / or braking force to the object (5) to be clamped and / or braked.

4. The housing component (3a, 3b) according to any one of claims 1 to 3, It is characterized in that The first locking member (110) comprises a first protrusion (111) and a first stop portion (112), wherein the protrusion (111) and the first stop portion (112) respectively define the first contact surface (101), so that the first locking member (110) is designed to lock the first end of the spring plate (1a, 1b) between the first protrusion (111) and the first stop portion (112) in the region of the first contact surface (101).

5. The housing component (3a, 3b) according to any one of claims 1 to 4, It is characterized in that The second locking member (120) comprises a second protruding portion (121) and a second stopping portion (122), wherein the second protruding portion (121) and the second stopping portion (122) respectively define the second contact surface (102), so that the second locking member (120) is designed to lock the second end of the spring plate (1a, 1b) between the second protruding portion (121) and the second stopping portion (122) in the area of ​​the second contact surface (102).

6. The housing component (3a, 3b) according to any one of claims 4 to 5, It is characterized in that The first protruding portion (111) includes a step portion or a slope portion, and / or the second protruding portion (121) also includes a step portion or a slope portion.

7. The housing component (3a, 3b) according to any one of claims 4 to 6, It is characterized in that The first protrusion (111) and the first stopper (112) are arranged in a specific size in the area of ​​the recess (11), so that when the spring plates (1a, 1b) are introduced into the recess (11) from the outside, after the first ends of the spring plates (1a, 1b) pass through the first protrusion (111), the first stopper (112) forms an obstacle to the first ends of the spring plates (1a, 1b) being further introduced into the recess (11).

8. The housing component (3a, 3b) according to any one of claims 4 to 7, It is characterized in that The second protrusion (121) and the second stopper (122) are arranged in a specific size in the area of ​​the recess (11), so that when the spring plates (1a, 1b) are introduced into the recess (11) from the outside, after the second ends of the spring plates (1a, 1b) pass through the second protrusion (121), the second stopper (122) forms an obstacle for the second ends of the spring plates (1a, 1b) to be introduced deeper into the annular recess (11).

9. The housing component (3a, 3b) according to any one of claims 4 to 8, It is characterized in that The extension length of the first stop portion (112) in the radial direction (R) of the annular recess (11) is longer than that of the first protrusion (111), and / or the extension length of the second stop portion (122) in the radial direction (R) of the annular recess (11) is longer than that of the second protrusion (121).

10. The housing component (3a, 3b) according to any one of claims 4 to 9, It is characterized in that In the radial direction (R) of the annular recess (11), relative to the first contact surface (101), the first protrusion (111) protrudes into the recess (11) by 0.025 mm to 0.15 mm, preferably 0.05 mm to 0.1 mm, and particularly preferably about 0.1 mm; and / or, in the radial direction (R) of the annular recess (11), relative to the second contact surface (101), the second protrusion (121) protrudes into the annular recess (11) by 0.025 mm to 0.15 mm, preferably 0.05 mm to 0.1 mm, and particularly preferably about 0.05 mm.

11. The housing component (3a, 3b) according to any one of claims 1 to 10, It is characterized in that The annular recess (11) defines an annular opening (12) in the housing components (3a, 3b), wherein the annular opening (12) is formed between a first annular edge (12a) of the housing component and a second annular edge (12b) of the housing component.

12. Housing part (3a, 3b) according to claim 11, It is characterized in that The first protrusion (111) is arranged between the first annular edge (12a) and the first contact surface (101) on the inner side of the shell component (3a, 3b) in the area of ​​the recessed portion (11), wherein the first protrusion (111) is arranged at a certain distance from the first annular edge (12a) on the inner side of the shell component (3a, 3b) in the area of ​​the annular recessed portion (11), and the distance is preferably 1 mm to 1.8 mm, more preferably 1.1 mm to 1.5 mm, and particularly preferably about 1.2 mm.

13. Housing part (3a, 3b) according to claim 11 or 12, It is characterized in that The second protrusion (121) is arranged between the second annular edge (12b) and the second contact surface (102) on the inner side of the shell part (3a, 3b) in the area of ​​the recessed part (11), wherein the second protrusion (121) is arranged at a certain distance from the second annular edge (12b) on the inner side of the shell part (3a, 3b) in the area of ​​the recessed part (11), and the distance is preferably 1 to 1.8 mm, more preferably 1.1 to 1.5 mm, and particularly preferably about 1.2 mm.

14. The housing component (3a, 3b) according to any one of claims 1 to 13, in, The second contact surface (102) and the clamping surface (7) are respectively arranged on two opposite side surfaces of the clamping element (8).

15. The housing component (3a, 3b) according to any one of claims 11 to 14, in, The first protrusion (111) extends from the first annular edge (12a) to the first contact surface (101), preferably extending continuously.

16. The housing component (3a, 3b) according to any one of claims 11 to 15, in, The second protrusion (121) extends from the second annular edge (12b) to the second contact surface (102), preferably extending continuously.

17. A clamping and / or braking device (10) for clamping and / or braking an object to be clamped and / or braked, include: A housing (3), comprising a first housing component (3a) according to any one of claims 1 to 16 and a second housing component (3b) according to any one of claims 1 to 16, wherein the two housing components (3a, 3b) are arranged opposite to each other and fixed to each other, and the recessed portions (11) of the first and second housing components (3a, 3b) together constitute an internal space (13) in the housing (3); A spring (1) is arranged in the inner space (13), comprising a first annular spring plate (1a) and a second annular spring plate (1b), wherein the spring plates (1a, 1b) are arranged in the inner space (13) and form at least one pressure space (2, 4) in the inner space (13), wherein the pressure space is at least partially delimited by the spring plates (1a, 1b), wherein the pressure space (2, 4) can be inflated or exhausted and can be acted upon by the positive pressure of a pressure medium input into the housing (3), wherein the first spring plate (1a) is clamped between the first contact surface (101) of the first housing component (3a) and the second contact surface (102) of the first housing component (3a); the first end of the first spring plate (1a) is locked by the first locking member (110) of the first housing component (3a); and the second end of the first spring plate (1a) is locked by the second locking member (120) of the first housing component (3a); The second spring plate (1b) is clamped between the first contact surface (101) of the second housing component (3b) and the second contact surface (102) of the second housing component (3b), the first end of the second spring plate (1b) is locked by the first locking member (110) of the second housing component (3b), and the second end of the second spring plate (1b) is locked by the second locking member (120) of the second housing component (3b); and The spring plates (1a, 1b) are arranged relative to the at least one pressure space (2, 4), and the bending degree of at least one of the spring plates (1a, 1b) is variable by inflating or exhausting the pressure space (2, 4) or applying positive pressure to the pressure space (2, 4), so that the device (10) can be switched between an open state and a closed state. In the open state, the object (5) is separated from the clamping surface (7); in the closed state, one or more of the clamping surfaces (7) transmit a clamping and / or braking force to the object (5).

18. The clamping and / or braking device (10) according to claim 17, in, The at least one pressure space comprises a first pressure space (4), which is arranged outside the spring (1) and between at least one of the spring plates (1a, 1b) and the housing (3).

19. The clamping and / or braking device (10) according to claim 18, in, The first spring plate (1a) is designed to reduce its bending degree by inflating the first pressure space (4) or applying positive pressure to the first pressure space (4), so that when the first end of the first spring plate (1a) is supported on the first contact surface (101) of the first housing component (3a), the second end of the first spring plate (1a) is pressed against the second contact surface (102) of the first housing component (3a), thereby realizing the transmission of the clamping force and / or braking force 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 changing the device (10) from the open state to the closed state.

20. The clamping and / or braking device (10) according to claim 18 or 19, in, The second spring plate (1b) is designed to reduce its bending degree by inflating the first pressure space (4) or applying positive pressure to the first pressure space (2, 4), so that when the first end of the second spring plate (1b) is supported on the first contact surface (101) of the second housing component (3b), the second end of the second spring plate (1b) is pressed against the second contact surface (102) of the second housing component (3a), thereby realizing the transmission of the clamping and / or braking force from the clamping surface (7) of the clamping element (8) of the second housing component (3a) to the object to be clamped and / or braked (5), and switching the device (10) from the open state to the closed state.

21. The clamping and / or braking device (10) according to claim 18, 19 or 20, in, The device (10) is designed to switch the device (10) from the open state to the closed state by inflating the first pressure space (4) or applying positive pressure to the first pressure space (4) so ​​that the first contact surface (101) and the second contact surface (102) of at least one of the two housing components (3a, 3b) move away from each other and / or reduce the bending degree of at least one of the spring plates (1a, 1b).

22. The clamping and / or braking device (10) according to any one of claims 17 to 21, in, The at least one pressure space comprises a second pressure space (2), wherein the second pressure space (2) is arranged in the spring (1) between the two spring plates (1a, 1b), and preferably, the device (10) is designed to change the device (10) from the closed state to the open state by inflating the second pressure space (2) or applying positive pressure to the second pressure space (2), so that the first contact surface (101) and the second contact surface (102) of at least one of the two housing parts (3a, 3b) are brought closer to each other and / or the bending degree of at least one of the spring plates (1a, 1b) is increased.

Images