Clamping device

Abstract

The utility model discloses a clamping device which comprises a bearing part, two clamping assemblies, an assembling base, two linkage assemblies and a driving assembly, the bearing part comprises a first face and a second face which are arranged oppositely, the first face bears a workpiece, the two clamping assemblies are connected to the second face in a mirror image mode, and each clamping assembly comprises a resisting base, a clamping part and an elastic part; the assembling base is connected to the second face and located between the two clamping assemblies, the two linkage assemblies are connected to the second face in a mirroring mode and located between the two clamping assemblies, the two linkage assemblies correspond to the two clamping assemblies one to one, each linkage assembly comprises a pushing part and a rotating part, and the driving assembly is arranged on the assembling base and located between the two linkage assemblies. The driving assembly comprises a fixing piece, a driving piece, a stop piece and a reset piece. According to the clamping device provided by the embodiment of the invention, the workpiece cannot deviate on the bearing part under the clamping action of the two clamping parts, the clamping stability of the clamping device on the workpiece is high, and the machining quality can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece clamping, and in particular to a clamping device. Background Art

[0002] In actual production and processing, in order to ensure the processing quality of the workpiece, it is usually necessary to use a clamping device such as a suction fixture to first suck the workpiece tightly and then process the workpiece. However, for larger and thicker workpieces, the suction fixture cannot firmly suck the workpiece, causing the workpiece to shift during processing, thereby affecting the processing quality of the workpiece. Utility Model Content

[0003] In view of the above, it is necessary to propose a clamping device to improve the clamping stability of the workpiece, thereby improving the processing quality of the workpiece.

[0004] The present application provides a clamping device, comprising:

[0005] The bearing member comprises a first surface and a second surface disposed opposite to each other, wherein the first surface is used for bearing a workpiece;

[0006] Two clamping assemblies are mirror-connected to the second surface, each of the clamping assemblies comprises a blocking seat, a clamping piece and an elastic piece, the blocking seat is connected to the second surface and is provided with a sliding hole, the clamping piece is slidably arranged in the sliding hole and has a clamping portion that movably passes through the second surface and the first surface and extends to the side of the first surface away from the second surface, the clamping portion is used to adapt and clamp the workpiece, and the elastic piece is arranged in the sliding hole and abuts between the clamping piece and the blocking seat;

[0007] An assembly seat connected to the second surface and located between the two clamping assemblies;

[0008] Two linkage components are mirror-connected to the second surface and are located between the two clamping components. The two linkage components correspond to the two clamping components one by one. Each linkage component includes a push member and a rotating member. The push member is slidably arranged between the second surface and the assembly seat. One end of the push member extends toward the corresponding clamping component and is connected to the corresponding clamping member. The rotating member is rotatably arranged on the assembly seat. One end of the rotating member is connected to the other end of the push member.

[0009] A driving component is arranged on the assembly seat and located between the two linkage components. The driving component includes a fixing member, a driving member, a stop member and a reset member. The fixing member is connected to the side of the assembly seat away from the second surface. A negative pressure groove is provided on the side of the fixing member facing the assembly seat. A negative pressure hole connected to the negative pressure groove is provided on the side of the fixing member. The negative pressure hole is connected to an external negative pressure device. The driving member is slidably arranged in the assembly seat and is respectively connected to the other ends of the two rotating members. One end of the driving member is slidably arranged in the negative pressure groove. The stop member is sleeved on the driving member. The reset member abuts between the stop member and the fixing member.

[0010] In some embodiments, the driving member is provided with a negative pressure channel, and the negative pressure channel passes through the driving member along the sliding direction of the driving member, and one end of the negative pressure channel is connected to the negative pressure groove, and the driving component also includes an assembly cylinder, and the assembly cylinder is arranged in the assembly seat and connected to the second surface, and the assembly cylinder is located between the two pushing members, and the other end of the driving member is slidably arranged in the assembly cylinder, and the supporting member is provided with an adsorption hole passing through the first surface and the second surface, and the adsorption hole is connected to the assembly cylinder, and the adsorption hole generates negative pressure under the action of an external negative pressure device, the negative pressure hole, the negative pressure groove, the negative pressure channel and the assembly cylinder to adsorb the workpiece.

[0011] In some embodiments, a mesh groove structure is formed on the first surface, and the mesh groove structure is connected to the adsorption holes. The mesh groove structure generates negative pressure under the action of the adsorption holes so that the first surface adsorbs the workpiece.

[0012] In some embodiments, each of the rotating members includes a rotating part, a first rotating arm and a second rotating arm. The rotating part is rotatably arranged on the assembly seat, the first rotating arm and the second rotating arm are both connected to the rotating part, and a preset angle is formed between the first rotating arm and the second rotating arm. The end of the first rotating arm facing away from the rotating part is connected to the push member, and the end of the second rotating arm facing away from the rotating part is connected to the driving member.

[0013] In some embodiments, each of the linkage components also includes a guide seat and a fixed seat, the guide seat is connected between the second surface and the assembly seat, the push member is slidably passed through the guide seat, the fixed seat is arranged in the assembly seat and is located on the side of the guide seat away from the second surface, and the rotating member is rotatably arranged on the fixed seat.

[0014] In some embodiments, each of the clamping assemblies further includes a connecting pin, and one end of the push member extends to a side of the corresponding blocking seat away from the second surface and is connected to the clamping member through the connecting pin.

[0015] In some embodiments, each of the clamping assemblies further includes a stopper connected to a side of the stop seat away from the second surface, and a receiving groove is provided on a side of the stopper facing the push member, and the receiving groove is used to accommodate an end of the push member extending to a side of the stop seat away from the second surface.

[0016] In some embodiments, each of the clamping assemblies further includes a positioning pin, which is disposed on the first surface and adjacent to the clamping portion, and is used to position the workpiece.

[0017] In some embodiments, the assembly seat includes a top seat, a base and a limit member, the top seat is connected to the second surface, the base is connected to the top seat, and the limit member is connected to a side of the base facing the top seat, wherein the push member is slidably arranged between the second surface and the top seat, the rotating member is rotatably arranged on the top seat, the fixing member is connected to a side of the base facing away from the top seat, the driving member slides through the base, the limit member and the top seat, and the stop member is located on a side of the limit member facing away from the top seat.

[0018] In some embodiments, the clamping device also includes a supporting assembly, which includes a base plate and a supporting member. The base plate is arranged on a side of the assembly seat away from the supporting member and is spaced apart from the assembly seat. The supporting member is arranged between the base plate and the supporting member.

[0019] When the above clamping device clamps a workpiece, the workpiece can be a middle frame. A negative pressure is generated by an external negative pressure device, so that a negative pressure is generated in the negative pressure holes and the negative pressure grooves, attracting the driving member to move towards the fixing member. At the same time, the driving member drives the stopper to move, the stopper compresses the elastic member. When the driving member moves towards the fixing member, the rotating members of the two linkage assemblies are driven to rotate. The two rotating members drive the corresponding pushing members to move away from the corresponding clamping assemblies through rotation. When the pushing members move away from the corresponding clamping assemblies, the corresponding clamping members are driven to move, causing the two clamping members to move closer to each other, and further causing the two clamping parts to move closer to each other, so as to facilitate placing the workpiece on the bearing member. When the workpiece is placed on the bearing member, at this time, the two clamping parts are located inside the workpiece. By removing the negative pressure with the external negative pressure device, the negative pressure in the negative pressure holes and the negative pressure grooves is removed and the driving member cannot be attracted. The elastic member elastically resumes and releases elastic force. Under the action of the elastic force of the elastic member, the stopper moves in a direction away from the fixing member. The stopper drives the driving member to move in a direction away from the fixing member. When the driving member moves in a direction away from the fixing member, the rotating members of the two linkage assemblies are driven to rotate in the reverse direction. The two rotating members drive the corresponding pushing members to move closer to the corresponding clamping assemblies through reverse rotation. When the pushing members move closer to the corresponding clamping assemblies, the corresponding clamping members are driven to move, causing the two clamping members to move away from each other, and further causing the two clamping parts to move away from each other to clamp the workpiece. The two clamping parts clamp the workpiece in an inner support manner, thereby realizing clamping of the workpiece.

[0020] The clamping device provided by the embodiment of the present application realizes clamping of the workpiece through the cooperation of the bearing member, the two clamping assemblies, the assembly seat, the two linkage assemblies and the driving assembly. The workpiece is clamped by the two clamping parts and will not shift on the bearing member. The clamping device has high clamping stability for the workpiece, which is beneficial to improving the processing quality. In addition, when the clamping device clamps the workpiece, it only needs to control the opening and closing of the external negative pressure device. The operation of the clamping device is simple, which is beneficial to improving the clamping efficiency of the workpiece and reducing the labor intensity of the workers. The structure of the clamping device is simple, which is beneficial to reducing the manufacturing cost. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the clamping device provided by the embodiment of the present application.

[0022] Figure 2 is Figure 1 a sectional view of the shown clamping device along II-II.

[0023] Figure 3 is Figure 1 an exploded view of the shown clamping device with the support assembly hidden.

[0024] Figure 4 is Figure 1 an exploded view of the shown clamping device with the support assembly hidden from another perspective.

[0025] Description of Main Component Symbols

[0026] Clamping Device 100

[0027] Carrier 10

[0028] First Surface 11

[0029] Second Surface 12

[0030] Avoidance Hole 13

[0031] Adsorption Hole 14

[0032] Mesh Groove Structure 15

[0033] Clamping Assembly 20

[0034] Resisting Seat 21

[0035] Sliding Hole 211

[0036] Clamping Member 22

[0037] Clamping Portion 221

[0038] Elastic Member 23

[0039] Resisting Member 24

[0040] Receiving Groove 241

[0041] Connecting Pin 25

[0042] Positioning Pin 26

[0043] Assembly Seat 30

[0044] Top Seat 31

[0045] Mounting Hole 311

[0046] Base 32

[0047] First Hole 321

[0048] Second Hole 322

[0049] Limiting Member 33

[0050] Positioning Rod 34

[0051] Linkage Assembly 40

[0052] Pushing Member 41

[0053] Insertion Slot 411

[0054] Rotating Member 42

[0055] Rotating Portion 421

[0056] The first swing arm 422

[0057] The second swing arm 423

[0058] The guide seat 43

[0059] The fixed seat 44

[0060] The rotating pin 45

[0061] The drive assembly 50

[0062] The fixing part 51

[0063] The negative pressure groove 511

[0064] The negative pressure hole 512

[0065] The drive part 52

[0066] The annular groove 521

[0067] The negative pressure channel 522

[0068] The stop part 53

[0069] The reset part 54

[0070] The assembly cylinder 55

[0071] The manual valve 60

[0072] The seal part 70

[0073] The support assembly 80

[0074] The bottom plate 81

[0075] The support part 82 Detailed implementation manners

[0076] The following details the implementation manners of the present application. Examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation of the present application.

[0077] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0078] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or a connection capable of mutual communication, it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0079] Some embodiments of the present application will be described in detail below with reference to the drawings.

[0080] Please refer to Figure 1 , an embodiment of the present application provides a clamping device 100. The clamping device 100 is used to clamp a workpiece (not shown in the figure), where the workpiece can be a frame-like structure such as a middle frame, or a plate-like structure such as a flat plate.

[0081] Please refer to Figures 1 to 4 , the clamping device 100 includes a carrier 10, two clamping assemblies 20, an assembly seat 30, two linkage assemblies 40, and a driving assembly 50.

[0082] The carrier 10 includes a first surface 11 and a second surface 12 arranged opposite to each other. The first surface 11 is used to adapt to carry the workpiece, where the shape of the first surface 11 can be adaptively changed according to the shape of the workpiece.

[0083] The two clamping components 20 are mirror-connected to the second surface 12. In this embodiment, the two clamping components 20 are roughly located at both ends of the second surface 12. Each clamping component 20 includes a stop seat 21, a clamping member 22 and an elastic member 23. The stop seat 21 is connected to the second surface 12 and is provided with a sliding hole 211. The stop seat 21 is roughly a rectangular structure. The clamping member 22 is slidably arranged in the sliding hole 211 and has a clamping portion 221 that movably passes through the second surface 12 and the first surface 11 and extends to the side of the first surface 11 away from the second surface 12. The clamping portion 221 is used to adapt to clamping a workpiece. The clamping portion 221 is, for example, a special-shaped buckle. The elastic member 23 is arranged in the sliding hole 211 and abuts between the clamping member 22 and the stop seat 21. The clamping member 22 and the blocking seat 21 can be slidably connected by cooperating with a concave-convex structure similar to the structure of a slide rail slider. Each clamping assembly 20 includes two elastic members 23, which can be springs. The two elastic members 23 are both in contact between the clamping member 22 and the blocking seat 21. Avoidance holes 13 are respectively provided at both ends of the carrier 10. The two avoidance holes 13 are arranged in a one-to-one correspondence with the two clamping parts 221. The clamping parts 221 are movably arranged in the corresponding avoidance holes 13.

[0084] The assembly seat 30 is connected to the second surface 12 and is located between the two clamping assemblies 20 . The assembly seat 30 is generally a hollow structure. It can be understood that the two clamping assemblies 20 are mirror-imaged with respect to the assembly seat 30 .

[0085] The two linkage components 40 are mirror-connected to the second surface 12 and are located between the two clamping components 20. The two linkage components 40 correspond to the two clamping components 20 one by one. Each linkage component 40 includes a push member 41 and a rotating member 42. The push member 41 is slidably arranged between the second surface 12 and the assembly seat 30. One end of the push member 41 extends toward the corresponding clamping component 20 and is connected to the clamping component 22. The rotating member 42 is rotatably arranged on the assembly seat 30. One end of the rotating member 42 is connected to the other end of the push member 41, wherein the other end of the push member 41 is located between the second surface 12 and the assembly seat 30.

[0086] The driving assembly 50 is arranged on the assembly seat 30 and is located between the two linkage assemblies 40. The driving assembly 50 is used to drive the two linkage assemblies 40 to move synchronously. The two linkage assemblies 40 respectively drive the corresponding clamping assemblies 20 to move so that the two clamping parts 221 are close to or away from each other. The driving assembly 50 includes a fixing member 51, a driving member 52, a stopper 53 and a reset member 54. The fixing member 51 is connected to the side of the assembly seat 30 away from the second surface 12. The fixing member 51 is provided with a negative pressure groove 511 on the side facing the assembly seat 30. The side of the fixing member 51 is provided with a negative pressure hole 512 connected to the negative pressure groove 511. The negative pressure hole 512 is connected to an external negative pressure device (not shown). The driving member 52 is slidably arranged in the assembly seat 30 and is respectively connected to the other end of the two rotating members 42. One end of the driving member 52 is slidably arranged in the negative pressure groove 511. The stopper 53 is sleeved on the driving member 52, and the reset member 54 abuts between the stopper 53 and the fixing member 51. Among them, the driving component 50 includes a plurality of reset members 54, and the plurality of reset members 54 are arranged around the driving member 52. The reset member 54 can be a spring. One end of the driving member 52 is adapted to be slidably arranged in the negative pressure groove 511 and a sealing member 70 is arranged between one end of the driving member 52 and the fixing member 51. An annular groove 521 is opened on the peripheral side of the driving member 52, and the other ends of the two rotating members 42 are connected to the driving member 52 by being inserted into the annular groove 521.

[0087] When the clamping device 100 clamps a workpiece, where the workpiece can be a middle frame, a negative pressure is generated by an external negative pressure device, so that a negative pressure is generated in the negative pressure holes 512 and the negative pressure grooves 511 to attract the driving member 52 to move towards the fixed member 51. At the same time, the driving member 52 drives the stopper 53 to move, the stopper 53 compresses the elastic member 23. When the driving member 52 moves towards the fixed member 51, it drives the rotating members 42 of the two linkage assemblies 40 to rotate. The two rotating members 42 drive the corresponding pushing members 41 to move away from the corresponding clamping assemblies 20 through rotation. When the pushing members 41 move away from the corresponding clamping assemblies 20, they drive the corresponding clamping members 22 to move, so that the two clamping members 22 move closer to each other, and further the two clamping portions 221 move closer to each other, facilitating the placement of the workpiece on the carrier 10. When the workpiece is placed on the carrier 10, at this time the two clamping portions 221 are located inside the workpiece. By removing the negative pressure through the external negative pressure device, the negative pressure in the negative pressure holes 512 and the negative pressure grooves 511 is removed and the driving member 52 cannot be attracted. The elastic member 23 elastically restores and releases elastic force. Under the elastic force of the elastic member 23, the stopper 53 moves in a direction away from the fixed member 51, the stopper 53 drives the driving member 52 to move in a direction away from the fixed member 51. When the driving member 52 moves in a direction away from the fixed member 51, it drives the rotating members 42 of the two linkage assemblies 40 to rotate in the reverse direction. The two rotating members 42 drive the corresponding pushing members 41 to move closer to the corresponding clamping assemblies 20 through reverse rotation. When the pushing members 41 move closer to the corresponding clamping assemblies 20, they drive the corresponding clamping members 22 to move, so that the two clamping members 22 move away from each other, and further the two clamping portions 221 move away from each other to internally support and clamp the workpiece, thereby realizing the clamping of the workpiece.

[0088] In this embodiment, the clamping device 100 further includes a manual valve 60. The manual valve 60 is connected to the side surface of the carrier 10 and is connected between the external negative pressure device and the negative pressure holes 512. The manual valve 60 is used to control the connection and disconnection between the external negative pressure device and the negative pressure holes 512. Thus, by providing the above-mentioned manual valve 60, it is convenient for the operator to manually control the clamping and loosening of the workpiece by the clamping device 100, simplifies the operation of the clamping device 100, and reduces the labor intensity of the operator.

[0089] In this embodiment, the clamping device 100 further includes a support assembly 80. The support assembly 80 is connected to the second surface 12 of the carrier 10, and the support assembly 80 is used to support structures such as the carrier 10 and the mounting seat 30. The support assembly 80 includes a bottom plate 81 and support members 82. The bottom plate 81 is disposed on the side of the mounting seat 30 away from the carrier 10 and is spaced apart from the mounting seat 30, and the support members 82 are disposed between the bottom plate 81 and the carrier 10. In this embodiment, the number of the support members 82 can be four, and the four support members 82 are all connected between the bottom plate 81 and the carrier 10 and are respectively located at the four corners of the bottom plate 81 and the carrier 10. Thus, by setting the specific structure of the support assembly 80 as described above, the support for structures such as the carrier 10 and the mounting seat 30 is realized, so that the clamping device 100 is modularly arranged.

[0090] In this embodiment, the driving member 52 is provided with a negative pressure channel 522. The negative pressure channel 522 penetrates the driving member 52 along the sliding direction of the driving member 52. One end of the negative pressure channel 522 communicates with the negative pressure groove 511. The driving assembly 50 further includes an assembly cylinder 55. The interior of the assembly cylinder 55 has a hole structure. The assembly cylinder 55 is disposed in the mounting seat 30 and is connected to the second surface 12. The assembly cylinder 55 is located between the two pushing members 41. The other end of the driving member 52 is slidably disposed in the assembly cylinder 55. The other end of the driving member 52 is slidably and adaptively disposed in the assembly cylinder 55, and a sealing member 70 is also provided between the other end of the driving member 52 and the assembly cylinder 55. The carrier 10 is provided with an adsorption hole 14 that penetrates the first surface 11 and the second surface 12. The adsorption hole 14 communicates with the assembly cylinder 55. The adsorption hole 14 generates negative pressure under the action of an external negative pressure device, the negative pressure hole 512, the negative pressure groove 511, the negative pressure channel 522, and the assembly cylinder 55 to adsorb the workpiece. Thus, by providing the negative pressure channel 522 on the driving member 52 and arranging the assembly cylinder 55, and by providing the adsorption hole 14 on the carrier 10, the carrier 10 can also tightly hold the workpiece, improving the clamping stability of the clamping device 100 for the workpiece. Among them, the negative pressure channel 522 can be a special-shaped channel, that is, one end has a large diameter and the other end has a small diameter, or the setting position and shape of the negative pressure channel 522 can be adaptively set according to actual conditions.

[0091] In order to improve the adsorption effect of the carrier 10 on the workpiece, in this embodiment, the first surface 11 is provided with a mesh groove structure 15. The mesh groove structure 15 communicates with the adsorption hole 14. The mesh groove structure 15 generates negative pressure under the action of the adsorption hole 14 to adsorb the workpiece. The mesh groove structure 15 is generally formed by a plurality of intersecting grooves. Thus, by providing the mesh groove structure 15 on the first surface 11, the area of the first surface 11 that can generate negative pressure to adsorb the workpiece is increased, thereby improving the adsorption effect of the carrier 10 on the workpiece.

[0092] In this embodiment, each clamping assembly 20 further includes a connecting pin 25. One end of the pushing member 41 extends to the side of the corresponding resisting seat 21 facing away from the second surface 12 and is connected to the clamping member 22 through the connecting pin 25. Thus, by providing the above-mentioned connecting pin 25, the connection between the pushing member 41 and the resisting seat 21 is achieved.

[0093] In this embodiment, each clamping assembly 20 further includes a resisting member 24. The resisting member 24 is connected to the side of the resisting seat 21 facing away from the second surface 12. A receiving groove 241 is formed on the side of the resisting member 24 facing the pushing member 41. The receiving groove 241 is used to receive one end of the pushing member 41 extending to the side of the resisting seat 21 facing away from the second surface 12. Thus, by providing the above-mentioned resisting member 24 and providing the receiving groove 241 on the resisting member 24, the pushing member 41 is guided by the receiving groove 241. At the same time, the bottom of the receiving groove 241 can also limit the pushing member 41 by abutting against the pushing member 41, preventing the pushing member 41 from moving beyond the range.

[0094] In this embodiment, each clamping assembly 20 further includes a positioning pin 26. The positioning pin 26 is arranged on the first surface 11 and is adjacent to the clamping portion 221. The positioning pin 26 is used for positioning the workpiece. Thus, by providing the above-mentioned positioning pin 26, when the workpiece is placed on the first surface 11, the positioning pin 26 is inserted into the corresponding hole on the workpiece to achieve the positioning of the workpiece, which is beneficial to improving the positioning accuracy of the clamping device 100 for the workpiece.

[0095] In this embodiment, each linkage assembly 40 further includes a guiding seat 43 and a fixing seat 44. The guiding seat 43 is connected between the second surface 12 and the assembly seat 30. The pushing member 41 slidably penetrates through the guiding seat 43. The pushing member 41 and the guiding seat 43 are slidably connected through a concave-convex structure similar to a slide rail-slider structure. The fixing seat 44 is arranged in the assembly seat 30 and is located on the side of the guiding seat 43 facing away from the second surface 12. The rotating member 42 is rotatably arranged on the fixing seat 44. Among them, the rotating member 42 is rotatably arranged on the fixing seat 44 through a rotating pin 45. Thus, by providing the above-mentioned guiding seat 43, the moving direction of the pushing member 41 is guided. By providing the fixing seat 44, the installation of the rotating member 42 is realized. The rotating member 42 is rotatably arranged in the assembly seat 30 through the fixing seat 44, simplifying the connection method between the rotating member 42 and the assembly seat 30.

[0096] In this embodiment, each of the rotating members 42 includes a rotating portion 421, a first rotating arm 422 and a second rotating arm 423. The rotating portion 421 is rotatably disposed on the assembly seat 30. Specifically, the rotating portion 421 is rotatably disposed on the fixed seat 44 through a rotating pin 45 so as to be rotatably disposed on the assembly seat 30. The first rotating arm 422 and the second rotating arm 423 are both connected to the rotating portion 421, and a preset angle is formed between the first rotating arm 422 and the second rotating arm 423. The angle range of the preset angle is, for example, 80°, 90°, 100°, etc., preferably 90°. The rotating portion 421 is roughly an arc-shaped structure. The first rotating arm 422 and the second rotating arm 423 can both be curved structures, and the end of the first rotating arm 422 away from the rotating part 421 is connected to the push member 41, and the end of the second rotating arm 423 away from the rotating part 421 is connected to the driving member 52, wherein the end of the first rotating arm 422 away from the rotating part 421 and the end of the second rotating arm 423 away from the rotating part 421 are both roughly arc-shaped structures, and the end of the first rotating arm 422 away from the rotating part 421 is movably inserted in the insertion groove 411 of the push member 41, and the end of the second rotating arm 423 away from the rotating part 421 is movably inserted into the annular groove 521 of the driving member 52. In this way, by setting the specific structure of the above-mentioned rotating member 42, when the driving member 52 drives the second rotating arm 423 to move, the second rotating arm 423 drives the rotating part 421 to rotate, the rotating part 421 drives the first rotating arm 422 to move, and the first rotating arm 422 drives the pushing member 41 to move, so that the rotating member 42 can achieve the effect of transmitting force between the driving member 52 and the pushing member 41.

[0097] In this embodiment, the assembly seat 30 includes a top seat 31, a base 32 and a stopper 33, the top seat 31 is connected to the second surface 12, the base 32 is connected to the top seat 31, the stopper 33 is connected to the side of the base 32 facing the top seat 31, wherein the push member 41 is slidably arranged between the second surface 12 and the top seat 31, the rotating member 42 is rotatably arranged on the top seat 31, the fixing member 51 is connected to the side of the base 32 away from the top seat 31, the driving member 52 slides through the base 32, the stopper 33 and the top seat 31, and the stopper 53 is located on the side of the stopper 33 away from the top seat 31. Specifically, the guide seat 43 is arranged between the second surface 12 and the top seat 31, the push member 41 is slidably arranged in the guide seat 43, the fixing seat 44 is arranged in the top seat 31, and the rotating member 42 is rotatably arranged on the fixing seat 44. In this way, by setting the specific structure of the above-mentioned assembly seat 30, the installation of the linkage assembly 40 and the driving assembly 50 is realized.

[0098] In this embodiment, the top seat 31 is provided with a mounting hole 311. The mounting hole 311 has a special-shaped structure and is used to adapt to and mount structures such as the guiding seat 43, the pushing member 41, the fixing seat 44, and the driving member 52. The base 32 is provided with a first hole 321 and a second hole 322 that are connected. The diameter of the first hole 321 is larger than that of the second hole 322. The limiting member 33 is disposed in the first hole 321, and the stopping member 53 is slidably disposed in the second hole 322. Among them, the first hole 321 can be a straight hole, the second hole 322 can be a stepped hole, or the second hole 322 can also be a straight hole. Sealing members 70 are also provided between the stopping member 53 and the base 32, between the fixing member 51 and the base 32, between the limiting member 33 and the base 32, and between the driving member 52 and the limiting member 33 to improve the sealing performance between the driving assembly 50 and the mounting seat 30. Thus, by providing the above-mentioned mounting hole 311, first hole 321, and second hole 322, the mounting seat 30 realizes the mounting of the linkage assembly 40 and the driving assembly 50.

[0099] In this embodiment, the mounting seat 30 further includes a positioning rod 34. The positioning rod 34 passes through the base 32, the top seat 31, and the bearing member 10. The number of the positioning rods 34 can be multiple. Thus, by providing the above-mentioned positioning rod 34, the base 32, the top seat 31, and the bearing member 10 are accurately connected.

[0100] In the clamping device 100 of the embodiment of the present application, through the cooperation of the bearing member 10, two clamping assemblies 20, the mounting seat 30, two linkage assemblies 40, and the driving assembly 50, the clamping of the workpiece is realized. The workpiece is clamped by the two clamping portions 221 and adsorbed by the mesh groove structure 15, so that the workpiece will not shift on the bearing member 10. The clamping device 100 has high clamping stability and strong firmness for the workpiece, and the clamping flatness of the workpiece is high, which is beneficial to improving the processing quality. In addition, when the clamping device 100 clamps the workpiece, only the manual valve 60 needs to be controlled. The operation of the clamping device 100 is simple, which is beneficial to improving the clamping efficiency of the workpiece and reducing the labor intensity of the workers. The structure of the clamping device 100 is simple, which is beneficial to reducing the manufacturing cost.

[0101] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present application, the present application can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present application.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A clamping device, characterized in that, include: The bearing member comprises a first surface and a second surface disposed opposite to each other, wherein the first surface is used for bearing a workpiece; Two clamping assemblies are mirror-connected to the second surface, each of the clamping assemblies comprises a blocking seat, a clamping piece and an elastic piece, the blocking seat is connected to the second surface and is provided with a sliding hole, the clamping piece is slidably arranged in the sliding hole and has a clamping portion that movably passes through the second surface and the first surface and extends to the side of the first surface away from the second surface, the clamping portion is used to adapt and clamp the workpiece, and the elastic piece is arranged in the sliding hole and abuts between the clamping piece and the blocking seat; An assembly seat connected to the second surface and located between the two clamping assemblies; Two linkage components are mirror-connected to the second surface and are located between the two clamping components. The two linkage components correspond to the two clamping components one by one. Each linkage component includes a push member and a rotating member. The push member is slidably arranged between the second surface and the assembly seat. One end of the push member extends toward the corresponding clamping component and is connected to the corresponding clamping member. The rotating member is rotatably arranged on the assembly seat. One end of the rotating member is connected to the other end of the push member. A driving component is arranged on the assembly seat and located between the two linkage components. The driving component includes a fixing member, a driving member, a stop member and a reset member. The fixing member is connected to the side of the assembly seat away from the second surface. A negative pressure groove is provided on the side of the fixing member facing the assembly seat. A negative pressure hole connected to the negative pressure groove is provided on the side of the fixing member. The negative pressure hole is connected to an external negative pressure device. The driving member is slidably arranged in the assembly seat and is respectively connected to the other ends of the two rotating members. One end of the driving member is slidably arranged in the negative pressure groove. The stop member is sleeved on the driving member. The reset member abuts between the stop member and the fixing member.

2. The clamping device according to claim 1, characterized in that, The driving member is provided with a negative pressure channel, and the negative pressure channel passes through the driving member along the sliding direction of the driving member, and one end of the negative pressure channel is communicated with the negative pressure groove. The driving component also includes an assembly cylinder, and the assembly cylinder is arranged in the assembly seat and connected to the second surface, and the assembly cylinder is located between the two pushing members. The other end of the driving member is slidably arranged in the assembly cylinder, and the supporting member is provided with an adsorption hole passing through the first surface and the second surface, and the adsorption hole is communicated with the assembly cylinder. Under the action of the external negative pressure device, the negative pressure hole, the negative pressure groove, the negative pressure channel and the assembly cylinder, the adsorption hole generates negative pressure to adsorb the workpiece.

3. The clamping device according to claim 2, characterized in that, The first surface is provided with a mesh groove structure, the mesh groove structure is communicated with the adsorption holes, and the mesh groove structure generates negative pressure under the action of the adsorption holes so that the first surface adsorbs the workpiece.

4. The clamping device according to claim 1, characterized in that, Each of the rotating members includes a rotating part, a first rotating arm and a second rotating arm. The rotating part is rotatably arranged on the assembly seat. The first rotating arm and the second rotating arm are both connected to the rotating part, and a preset angle is formed between the first rotating arm and the second rotating arm. The end of the first rotating arm facing away from the rotating part is connected to the push member, and the end of the second rotating arm facing away from the rotating part is connected to the driving member.

5. The clamping device according to claim 1, characterized in that, Each linkage assembly further includes a guide seat and a fixed seat, wherein the guide seat is connected between the second surface and the assembly seat, the push member is slidably arranged through the guide seat, the fixed seat is arranged in the assembly seat and is located on the side of the guide seat away from the second surface, and the rotating member is rotatably arranged on the fixed seat.

6. The clamping device according to claim 1, characterized in that, Each of the clamping assemblies further includes a connecting pin, and one end of the push member extends to a side of the corresponding blocking seat away from the second surface and is connected to the clamping member through the connecting pin.

7. The clamping device according to claim 6, characterized in that, Each of the clamping assemblies further includes a stopper connected to the side of the stop seat away from the second surface, and a receiving groove is provided on the side of the stopper facing the push member, and the receiving groove is used to receive an end of the push member extending to the side of the stop seat away from the second surface.

8. The clamping device according to claim 1, characterized in that, Each of the clamping assemblies further includes a positioning pin, which is disposed on the first surface and adjacent to the clamping portion, and is used to position the workpiece.

9. The clamping device according to claim 1, characterized in that, The assembly seat includes a top seat, a base and a limiting member, the top seat is connected to the second surface, the base is connected to the top seat, and the limiting member is connected to a side of the base facing the top seat, wherein the push member is slidably arranged between the second surface and the top seat, the rotating member is rotatably arranged on the top seat, the fixing member is connected to a side of the base away from the top seat, the driving member slides through the base, the limiting member and the top seat, and the stop member is located on a side of the limiting member away from the top seat.

10. The clamping device according to claim 1, characterized in that, The clamping device also includes a support assembly, which includes a base plate and a support member. The base plate is arranged on a side of the assembly seat away from the bearing member and is spaced apart from the assembly seat. The support member is arranged between the base plate and the bearing member.

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