Clamping device

Abstract

The utility model relates to the technical field of aeronautical manufacturing and maintenance, in particular to a clamping device. The clamping device comprises a mounting part, a pressing head assembly, a first adjusting part and a first elastic part, the mounting part can be mounted on the working platform, the pressing head assembly comprises a containing cavity with a through hole, the first adjusting part is arranged in the containing cavity and provided with a limiting part and a connecting part, and the connecting part penetrates through the through hole to be connected with the mounting part; the first elastic piece is arranged between the limiting part and the pressing head assembly, and the length of the first adjusting piece extending out of the mounting piece is adjustable. Under the reset action of the first elastic piece, the pressing head assembly can automatically clamp a workpiece downwards, manual adjustment of a user is not needed, and operation is easy and convenient. Automatic matching adjustment can be achieved according to different sizes of workpieces, the adaptability to different workpieces can be high, and universality is good; the damage to airplane parts is prevented, the unnecessary maintenance cost is reduced, and immeasurable loss and flight safety risks can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation manufacturing and maintenance technical field especially relates to a clamping device. BACKGROUND

[0002] Clamping device as a kind of can realize accurate positioning, fast clamping structure, is widely used in the welding, riveting, assembly process in the process of automation production. Aircraft parts processing, assembly and maintenance process also often need to fix a certain component to maintain its stability, but aviation parts product quality requirement is very high, and usually all for small-batch parts, product type diversification, size specification is not unified;And aviation parts processing tends to be thin-walled, light weight, in the process of processing and manufacturing or maintenance, deformation occurs easily.

[0003] The clamping device in prior art cannot adjust clamping width and height according to the size of parts, and is single in specification, and is not strong in versatility, and the traditional clamping device is too large in clamping force, and the parts itself is easily damaged, causes aircraft parts damage, increases unnecessary maintenance cost, and can also cause incalculable loss and flight safety risk.

[0004] Therefore, a new clamping device needs to be designed to improve the problems of poor versatility, too large clamping force, easy damage to aircraft parts and incalculable loss. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of clamping devices, and pressure head subassembly is automatically downwards to the clamping work of workpiece, without manually adjusting, easy and convenient to operate;Clamping device can be automatically matched adjustment according to the different size of workpiece, the adaptation degree of the clamping device of the utility model to different workpieces is high and good in versatility;Avoid the clamping force of traditional clamping device being too large, avoid that workpiece is damaged by clamping device, prevent causing aircraft parts damage, reduce unnecessary maintenance cost, also avoid incalculable loss and flight safety risk.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A kind of clamping device, comprising:

[0008] mounting piece, can be installed in work platform;

[0009] pressure head subassembly, the pressure head subassembly includes accommodating cavity with through hole;

[0010] The first adjusting member is arranged in the accommodating cavity and has a limiting portion and a connecting portion, the connecting portion is connected with the mounting member through the through hole, and the first elastic member is arranged between the limiting portion and the pressing head assembly.

[0011] As an optional solution, the connecting portion is threadedly connected with the mounting member.

[0012] The length of the connecting portion is adjustable.

[0013] As an optional solution, the pressing head assembly comprises:

[0014] The pressing head assembly comprises:

[0015] The pressing head assembly comprises:

[0016] The pressing head assembly comprises:

[0017] As an optional solution, the pressing head mechanism comprises:

[0018] The second adjusting member is arranged on the connecting member, and the length of the second adjusting member extending downward from the connecting member is adjustable.

[0019] The pressing head is arranged at the lower end of the second adjusting member.

[0020] As an optional solution, the pressing head comprises:

[0021] The pressing head comprises:

[0022] The pressing head comprises:

[0023] As an optional solution, the pressing head further comprises:

[0024] The pressing head further comprises:

[0025] As an optional solution, the position of the pressing head mechanism on the connecting member is adjustable.

[0026] As an optional solution, the first elastic member is sleeved on the outer periphery of the connecting portion.

[0027] As an optional solution, the pressing head assembly can rotate around the first adjusting member.

[0028] As an optional solution, the clamping device further comprises:

[0029] The clamping device further comprises: The fastener is threadedly connected with the mounting member, and the end of the fastener can abut against the pressing head assembly.

[0030] The clamping device has the advantages that:

[0031] The clamping device comprises a mounting piece, a pressure head assembly, a first adjusting piece and a first elastic piece, the mounting piece can be mounted on a work platform, the pressure head assembly comprises a containing cavity with a through hole, the first adjusting piece is arranged in the containing cavity and has a limiting portion and a connecting portion, the connecting portion passes through the through hole and is connected with the mounting piece, the first elastic piece is arranged between the limiting portion and the pressure head assembly, and the length of the first adjusting piece extending out of the mounting piece is adjustable.

[0032] The user only needs to hold the pressure head assembly and move it upwards, so as to drive the first elastic piece to be compressed, place the workpiece to be compressed below the pressure head assembly, release the pressure head assembly, drive the pressure head assembly to move downwards to reset under the compressed first elastic piece, and the pressure head assembly automatically clamps the workpiece downwards, without manual adjustment by the user, so that the operation is simple and convenient. In addition, the clamping device can automatically match and adjust according to different sizes of the workpiece, and the clamping device has high adaptability to different workpieces and good universality.

[0033] In addition, the length of the first adjusting piece extending out of the mounting piece is adjustable, so that the length of the first elastic piece after compression can be adjusted, so that the compression force of the pressure head assembly on the workpiece can be adjusted according to actual needs, the clamping force of the traditional clamping device is avoided to be too large, the workpiece is avoided to be damaged by the clamping device, damage to the aircraft parts is prevented, unnecessary maintenance cost is reduced, and the inestimable loss and flight safety risk are also avoided. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a first structural schematic view of the clamping device provided by the utility model embodiment;

[0035] Figure 2 is a second structural schematic view of the clamping device provided by the utility model embodiment;

[0036] Figure 3 is a sectional view of the clamping device provided by the utility model embodiment;

[0037] Figure 4 is a structural schematic view of the fastener provided by the utility model embodiment.

[0038] In the drawings:

[0039] 100, clamping device;

[0040] 10, mounting piece; 11, long hole;

[0041] 20, pressing head assembly; 21, pressing head; 211, accommodating cavity; 2111, through hole; 212, first hand holding part; 213, connecting column; 22, connecting piece; 221, mounting hole; 23, pressing head mechanism; 231, second adjusting piece; 232, pressing head; 2321, fixed part; 2322, movable part; 2323, buffer part; 233, second hand holding part;

[0042] 30, first adjusting piece; 31, limiting part; 32, connecting part;

[0043] 40, first elastic piece;

[0044] 50, fastening piece; 51, fastening screw; 52, second elastic piece;

[0045] 60, fixing piece. DETAILED DESCRIPTION

[0046] The technical solutions of the present application will be further described below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all.

[0047] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "left", "right", and the like, orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0050] As shown in Figure 1 and Figure 2 , the present disclosure provides a clamping device 100, which can realize accurate positioning and rapid clamping, and is widely used in welding, riveting, assembly and other process in automatic production. During the machining, assembly and maintenance of aircraft parts, it is often necessary to fix a certain part to maintain its stability. However, the quality requirements of aviation parts are very high, and they are usually small-batch parts with diversified product types and non-uniform size specifications. Moreover, aviation parts tend to be thin-walled and lightweight, and are prone to deformation during machining, manufacturing or maintenance.

[0051] The clamping device in the prior art cannot adjust the clamping width and height according to the size of the part, has single specification, and is not very versatile. Moreover, the clamping force of the traditional clamping device is too large, which can easily damage the part itself, causing damage to the aircraft part, increasing unnecessary maintenance cost, and even causing immeasurable loss and flight safety risk.

[0052] In order to solve the above problems, as shown in Figures 1-3 , the clamping device 100 of the present disclosure comprises a mounting member 10, a pressure head assembly 20, a first adjusting member 30 and a first elastic member 40. The mounting member 10 can be mounted on a workbench. The pressure head assembly 20 comprises a containing cavity 211 with a through hole 2111. The first adjusting member 30 is arranged in the containing cavity 211 and has a limiting portion 31 and a connecting portion 32. The connecting portion 32 passes through the through hole 2111 and is connected with the mounting member 10. The first elastic member 40 is arranged between the limiting portion 31 and the pressure head assembly 20. The user only needs to hold the pressure head assembly 20 and move it upward, which can drive the first elastic member 40 to compress. Then the workpiece to be compressed is placed below the pressure head assembly 20. After releasing the pressure head assembly 20, the compressed first elastic member 40 drives the pressure head assembly 20 to move downward to reset. The pressure head assembly 20 presses the workpiece downward, and the pressure head assembly 20 automatically clamps the workpiece downward without manual adjustment by the user. The operation is simple and convenient. In addition, the clamping device 100 can automatically match and adjust according to the different sizes of the workpiece. The clamping device 100 of the present disclosure has high adaptability to different workpieces and good versatility.

[0053] In addition, as shown in Figures 1-3As shown, the first adjusting member 30 can be adjusted in length to extend out of the mounting member 10, so that the compressed length of the first elastic member 40 can be adjusted, and the pressing force of the pressing head assembly 20 on the workpiece can be adjusted according to actual needs, so as to avoid the excessive clamping force of the traditional clamping device 100, prevent the clamping device 100 from damaging the workpiece, prevent the damage of the aircraft parts, reduce unnecessary maintenance costs, and avoid immeasurable losses and flight safety risks.

[0054] In addition, as Figures 1-3 As shown, the mounting member 10 is provided with a long hole 11, and the clamping device 100 further comprises a fixing member 60, which is fixedly connected with the workbench through the long hole 11, so as to realize the stable connection between the mounting member 10 and the workbench. The long hole 11 can adjust the relative position between the clamping device 100 and the workbench according to actual needs during the installation of the clamping device 100. For example, the fixing member 60 can be a screw, a pin or other types of fixing structures that can realize the connection between the mounting member 10 and the workbench. All structures that can realize the connection between the mounting member 10 and the workbench are within the protection scope of the present disclosure, and the present disclosure will not be described one by one.

[0055] In an optional embodiment, as Figure 3 As shown, the first elastic member 40 is sleeved on the outer periphery of the connecting portion 32, which can realize better positioning effect of the first elastic member 40, and prevent the first elastic member 40 from being pulled out of the limiting portion 31 and the pressing head assembly 20. In addition, the connecting portion 32 can also prevent the first elastic member 40 from being bent during the stretching and contracting process, and ensure the better stretching and contracting effect of the first elastic member 40 in the up-down direction. For example, the first elastic member 40 can be a spring, a rubber member or other structures that can realize elastic deformation.

[0056] In an optional embodiment, as Figure 3 As shown, the connecting portion 32 is threadedly connected with the mounting member 10, and by screwing the connecting portion 32 into the mounting member 10 to different depths, the length of the first adjusting member 30 extending out of the mounting member 10 can be quickly adjusted.

[0057] In an optional embodiment, the length of the first adjusting member 30 extending out of the mounting member 10 can also be quickly adjusted by designing the connecting member 32 as a structure with adjustable length. For example, the connecting member 32 can include at least two sub-connecting members (not shown in the figure) and a fixing structure (not shown in the figure). The two adjacent sub-connecting members are inserted and the relative position is adjustable. The fixing structure can realize the fixed connection of the two adjacent sub-connecting members at any relative position, thereby realizing the quick adjustment of the length of the connecting member 32. For example, at least two first locking holes (not shown in the figure) are formed on one of the two adjacent sub-connecting members, and a second locking hole (not shown in the figure) is formed on the other. Any first locking hole and the second locking hole are selected to be opposite, and the fixing structure is sequentially inserted through the first locking hole and the second locking hole opposite to the first locking hole, so that the relative position of the two adjacent sub-connecting members can be locked.

[0058] Of course, in an optional embodiment, the connecting member 32 can also be a pneumatic or electric telescopic rod, and all structures capable of realizing the adjustable length of the connecting member 32 are within the protection scope of the embodiments of the present disclosure.

[0059] In an optional embodiment, as shown in Figures 1-3 , the pressure head assembly 20 includes a pressure lifting member 21, a connecting member 22, and a pressure head mechanism 23. The pressure lifting member 21 has a receiving cavity 211 formed thereon. The connecting member 22 is fixedly connected with the pressure lifting member 21. The pressure head mechanism 23 is arranged on the connecting member 22. The pressure lifting member 21 is arranged to facilitate the user to lift the pressure head assembly 20. The pressure head mechanism 23 is arranged to realize a better pressure on the workpiece. The connecting member 22 is arranged to integrate the pressure lifting member 21 and the pressure head mechanism 23, realize a better integrated arrangement of the pressure head assembly 20, and simplify the structure of the clamping device 100, thereby realizing a quick assembly effect of the clamping device 100.

[0060] In an optional embodiment, as shown in Figures 1-3 , the pressure lifting member 21 includes a first hand lifting part 212 and a connecting column 213 fixedly connected with each other. The first hand lifting part 212 is arranged to facilitate the user to hold and exert force on the pressure lifting member 21, thereby effectively improving the lifting of the pressure lifting member 21 by the user.

[0061] In an optional embodiment, as shown in Figures 1-3 , the pressure head assembly 20 can slide in the up-down direction and also rotate around the first adjusting member 30. The orientation of the pressure head mechanism 23 can be adjusted according to the actual use scene, thereby further improving the use range of the clamping device 100.

[0062] In an optional embodiment, as shown in Figure 1 and Figure 3As shown, the pressing head mechanism 23 comprises a second adjusting member 231 and a pressing head 232, the second adjusting member 231 is arranged on the connecting member 22, the second adjusting member 231 can be adjusted to extend downward from the connecting member 22, and the pressing head 232 is arranged at the lower end of the second adjusting member 231, so that the pressing head 232 can be well pressed against workpieces of different heights by adjusting the length of the second adjusting member 231 extending downward from the connecting member 22.

[0063] As shown in the examples, Figure 1 and Figure 3 the second adjusting member 231 can be threadedly connected with the connecting member 22, and the length of the second adjusting member 231 extending downward from the connecting member 22 can be quickly adjusted by screwing the second adjusting member 231.

[0064] In other optional embodiments, the second adjusting member 231 can also be arranged in a telescopic rod structure, so as to achieve the quick adjustment of the second adjusting member 231.

[0065] In an optional embodiment, as shown in the examples, Figure 1 and Figure 3 the pressing head mechanism 23 further comprises a second hand holding portion 233, wherein the second hand holding portion 233 is arranged at the upper end of the second adjusting member 231, so that the user can hold the pressing head mechanism 23 through the second hand holding portion 233, and the user can easily exert a screwing force on the pressing head mechanism 23, thereby quickly and easily adjusting the length of the second adjusting member 231 extending downward from the connecting member 22.

[0066] In an optional embodiment, as shown in the example, Figures 1-3 the pressing head 232 comprises a fixed portion 2321 and a movable portion 2322, wherein the fixed portion 2321 is fixedly connected with the second adjusting member 231, the movable portion 2322 is ball-jointed with the fixed portion 2321, the movable portion 2322 can swing and rotate within a certain angle, the movable portion 2322 can be in contact with the workpiece to press it, and the movable portion 2322 can adapt to the pressing function of various contact surfaces.

[0067] In an optional embodiment, as shown in the example, Figures 1-3 the pressing head 232 further comprises a buffer portion 2323, the buffer portion 2323 is arranged at one end of the movable portion 2322 away from the fixed portion 2321, the buffer portion 2323 has a buffering and damping effect, and the buffer portion 2323 can effectively protect the surface of the workpiece from being damaged. For example, the buffer portion 2323 can be a rubber pad, a silica gel pad, or any other flexible structure having a buffering and damping effect, and all such flexible structures are within the protection scope of the embodiments of the present disclosure, which will not be described one by one.

[0068] In an optional embodiment, as shown in the example, Figures 1-3As shown, the position of the pressing head mechanism 23 on the connecting piece 22 is adjustable, and the pressing head mechanism 23 can press the workpiece at different positions, so that the clamping device 100 has high versatility and good matching degree.

[0069] As shown, the connecting piece 22 is provided with a plurality of mounting holes 221, and the second adjusting member 231 is screwed in different mounting holes 221 to quickly adjust the position of the pressing head mechanism 23. Figure 1 Figure 3 As shown, the connecting piece 22 is provided with a plurality of mounting holes 221, and the second adjusting member 231 is screwed in different mounting holes 221 to quickly adjust the position of the pressing head mechanism 23.

[0070] In an optional embodiment, as shown in Figure 2 Figure 4 As shown, the clamping device 100 further comprises a fastener 50, the fastener 50 is threadedly connected with the mounting piece 10, and the end of the fastener 50 can abut against the pressing head assembly 20. The fastener 50 is used to fix the pressing head assembly 20 and prevent the pressing head assembly 20 from rotating under the action of the first elastic member 40.

[0071] In an optional embodiment, as shown in Figure 4 As shown, the fastener 50 comprises a fastening screw 51 and a second elastic member 52, the second elastic member 52 is arranged at the end of the fastening screw 51, and the second elastic member 52 has elasticity. The second elastic member 52 can prevent the fastener 50 from damaging the thread of the pressing head assembly 20. For example, the second elastic member 52 can be a rubber member, a silica gel member, etc. All flexible structures are within the protection scope of the embodiments of the present disclosure, and the embodiments of the present disclosure will not be described one by one.

[0072] For convenience of description, the installation and use mode of the clamping device 100 will be described in combination with Figures 1-3

[0073] First, the clamping device 100 is installed: the pressing member 21 and the first elastic member 40 are sleeved on the second adjusting member 231, and the first adjusting member 30 is connected with the mounting piece 10; then, the second adjusting member 231 is installed in the mounting hole 221 on the connecting piece 22, and the mounting hole 221 and the length of the second adjusting member 231 extending downward from the connecting piece 22 are selected according to actual needs; the pressing head 232 with the buffer portion 2323 is installed at the lower end of the second adjusting member 231; finally, the mounting piece 10 is placed above the workbench, the fixing member 60 is connected with the workbench through the long hole 11 on the mounting piece 10, and the entire clamping device 100 is fixed, and the installation work is completed.

[0074] ​​​During use, first, the length of the second adjusting member 231 extending downwardly from the connecting member 22 is adjusted by a wrench, and then the fastener 50 is tightened to abut against the first adjusting member 30. Then, the user only needs to hold the lifting member 21 and move it upwardly to drive the pressing head assembly 20 to move upwardly and compress the first elastic member 40, and then places the workpiece to be pressed into the lower portion of the pressing head assembly 20, and then releases the lifting member 21, and the first elastic member 40 is reset downwardly to drive the pressing head assembly 20 to press the workpiece downwardly. If the pressing force is too large or too small, the fastener 50 is loosened, and then the first adjusting member 30 is rotated to adjust the height of the first elastic member 40. In addition, the workpiece in different directions can be adapted by rotating the lifting member 21, the workpiece in different heights can be adapted by rotating the second adjusting member 231, and the position of the workpiece to be pressed can be controlled by selecting the mounting hole 221 on the connecting member 22.

[0075] After use, the fixing member 60 is loosened by a wrench, and then the whole clamping device 100 is detached from the work platform.

[0076] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A clamping device, characterized in that The utility model relates to a clamping device, which comprises: a mounting piece (10) capable of being mounted on a workbench; a pressure head assembly (20) comprising a containing cavity (211) with a through hole (2111); a first adjusting piece (30) disposed in the containing cavity (211) and having a limiting portion (31) and a connecting portion (32) connected with the mounting piece (10) through the through hole (2111), and a first elastic piece (40) disposed between the limiting portion (31) and the pressure head assembly (20), wherein the length of the first adjusting piece (30) extending out of the mounting piece (10) is adjustable.

2. The clamping device of claim 1, wherein The connecting portion (32) is threadedly connected with the mounting piece (10); or The length of the connecting portion (32) is adjustable.

3. The clamping device according to claim 1 or 2, characterized in that The pressure head assembly (20) comprises: a pressure head mechanism (23) disposed on the connecting piece (22). The pressure head mechanism (23) comprises: a second adjusting piece (231) disposed on the connecting piece (22), wherein the length of the second adjusting piece (231) extending downward out of the connecting piece (22) is adjustable; 4. The clamping device of claim 3, wherein a pressure head (232) disposed at the lower end of the second adjusting piece (231). The pressure head (232) comprises: a fixed portion (2321) fixedly connected with the second adjusting piece (231); and 5. The clamping device of claim 4, wherein a movable portion (2322) ball-jointedly connected with the fixed portion (2321). The pressure head (232) further comprises: a buffer portion (2323) disposed at one end of the movable portion (2322) away from the fixed portion (2321).

6. The clamping device of claim 5, wherein The position of the pressure head mechanism (23) on the connecting piece (22) is adjustable. The first elastic piece (40) is sleeved on the outer periphery of the connecting portion (32).

7. The clamping device of claim 3, wherein The pressure head assembly (20) is capable of rotating around the first adjusting piece (30).

8. The clamping device according to claim 1 or 2, characterized in that The clamping device further comprises:

9. The clamping device according to claim 1 or 2, characterized in that a fastener (50) threadedly connected with the mounting piece (10), wherein the end of the fastener (50) is capable of abutting against the pressure head assembly (20).

10. The clamping device according to claim 1 or 2, characterized in that ​ ​

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