Clamping device

Abstract

The utility model provides a clamping device to improve the clamping efficiency of a workpiece. The reference assembly is connected with the base and is provided with a reference piece and a fixing piece which are arranged at an interval; the positioning assemblies are movably connected with the reference assembly respectively, each positioning assembly comprises a movable part, an elastic part and a positioning part, the movable part movably penetrates through the fixed part and is sleeved with the elastic part, and the two ends of the elastic part elastically abut against the fixed part and the movable part respectively; the positioning piece is arranged on the side, facing the reference piece, of the fixed piece and connected with the movable piece. The driving assembly is connected with the base and provided with a driving part and a rotating part, the driving part is connected with the base, the rotating part is rotationally connected with the driving part and provided with a plurality of abutting bodies, and the rotating part is driven by the driving part to drive the abutting bodies to abut against the corresponding movable parts so that the rotating part can rotate relative to the fixed part; and the plurality of movable parts respectively compress the corresponding elastic parts to the fixed part so as to respectively drive the corresponding positioning parts to position the workpiece to the reference part.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a clamping device. Background Technology

[0002] Currently, when processing cylindrical products, a three-jaw chuck is typically used to hold and fix the product in a stable position, facilitating processing by the equipment. However, when using a three-jaw chuck to hold and fix the product, the operator first adjusts the three jaws to the preset position and then secures the jaws with locking mechanisms. This manual clamping method is inefficient. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a clamping device to improve the clamping efficiency of workpieces.

[0004] This application provides a clamping device, including:

[0005] Base;

[0006] A reference assembly is connected to the base. The reference assembly includes a reference element and a fixing element, which are spaced apart from each other on the base.

[0007] Multiple positioning components are movably connected to the reference component. Each positioning component includes a movable part, an elastic part, and a positioning part. The movable part is movably inserted through the fixed part, with both ends extending out of opposite sides of the fixed part. The elastic part is sleeved on the movable part, with both ends elastically abutting against the fixed part and the end of the movable part away from the reference component. The positioning part is located on the side of the fixed part facing the reference component and connected to the other end of the movable part.

[0008] A driving assembly, connected to the base, includes a driving member and a rotating member. The driving member is located on the side of the movable member opposite to the positioning member and is connected to the base. The rotating member is rotatably connected to the driving member and has multiple pushing bodies. Each of the multiple pushing bodies corresponds one-to-one with a movable member of a set of positioning assemblies. The driving member drives the rotating member to move the multiple pushing bodies to push against the corresponding movable members, so that the rotating member rotates relative to the fixed member and the multiple movable members compress the corresponding elastic members to the fixed member, thereby driving the corresponding positioning members to position the workpiece to the reference member.

[0009] In actual use, the above-mentioned clamping device first places multiple workpieces on the base in sequence. Then, the driving component drives the rotating component to move closer to the fixed component. Finally, the rotating component, driven by the driving component, drives multiple pushing bodies to push against the corresponding movable components, so that the rotating component rotates relative to the fixed component and the multiple movable components compress the corresponding elastic components to the fixed component, so as to drive the corresponding positioning components to position multiple workpieces to the reference component, thereby realizing the clamping operation of multiple workpieces at one time and improving the clamping efficiency of workpieces.

[0010] In some embodiments, the reference member is provided with a plurality of positioning grooves, the plurality of positioning grooves are spaced apart along the vertical direction from the fixing member to the reference member, the plurality of positioning grooves are all provided on the side of the reference member facing the fixing member, the plurality of positioning members are all provided with abutment grooves on the side of the reference member facing the reference member, the plurality of abutment grooves correspond one-to-one with the plurality of positioning grooves, and the plurality of abutment grooves abut against the plurality of workpieces to the corresponding positioning grooves under the drive of the corresponding positioning members.

[0011] In some embodiments, both the positioning groove and the abutting groove include a first groove wall and a second groove wall, the first groove wall and the second groove wall are arranged at a preset angle, and the first groove wall and the second groove wall respectively abut against different positions of the side wall of the workpiece.

[0012] In some embodiments, the openings of the positioning groove and the abutment groove at the ends away from the base are chamfered.

[0013] In some embodiments, the active component includes:

[0014] The movable body is movably inserted through the fixed member and the corresponding elastic member and connected to the corresponding positioning member;

[0015] A protrusion is provided on the side of the fixed member facing the rotating member and coaxially connected to the movable body. The cross-sectional area of ​​the protrusion is larger than that of the movable body. The protrusion and the fixed member respectively abut against the two sides of the corresponding elastic member. Under the pushing of the corresponding pushing body, the protrusion drives the movable body to move closer to the reference member and compresses the corresponding elastic member to the fixed member.

[0016] In some embodiments, the fixing member is provided with a plurality of receiving slots and a plurality of guide slots. The plurality of receiving slots are spaced apart on the side of the fixing member facing the driving member and correspond one-to-one with the plurality of elastic members. The plurality of receiving slots respectively receive the plurality of elastic members. The plurality of guide slots are respectively corresponding to the plurality of receiving slots and are coaxially connected to the corresponding receiving slots. The cross-sectional area of ​​the guide slot is smaller than the cross-sectional area of ​​the receiving slot. The guide slot receives the movable body to guide the movable body.

[0017] In some embodiments, the drive includes:

[0018] A driving element is disposed on the base;

[0019] Linkage body, connected to the drive body and rotatably connected to the rotating component; and

[0020] A control valve is disposed on the base and connected to the drive body and an external air source. The control valve opens or closes the air passage between the external air source and the drive body to control the drive body to drive the linkage body to move closer to or away from the fixed part.

[0021] In some embodiments, the linkage includes a linkage part and a rotating shaft. The linkage part is connected to the drive body and is provided with a limiting groove. The limiting groove receives and limits the rotating member. The rotating shaft is movably inserted through the linkage part and the rotating member. The two ends of the rotating shaft abut against the opposite sides of the linkage part, so that the rotating member is rotatably connected to the linkage part.

[0022] In some embodiments, the end of the pusher facing the movable member is an arc-shaped portion.

[0023] In some embodiments, the base includes:

[0024] A substrate, wherein the reference component and the driving component are disposed at intervals on the substrate;

[0025] A connector is disposed on the side of the substrate opposite to the reference member. One end of the connector is connected to the substrate, and the other end of the connector is connected to an external device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the clamping device and the workpiece provided in the embodiments of this application.

[0027] Figure 2 for Figure 1 The diagram shows an exploded view of the clamping device.

[0028] Figure 3 for Figure 2 The clamping device shown is shown in a cross-sectional view along the III-III direction.

[0029] Figure 4 for Figure 2 A three-dimensional structural diagram of the rotating component of the clamping device shown.

[0030] Explanation of main component symbols: clamping device 100, base 10, base plate 11, connector 12, reference assembly 20, reference component 21, positioning groove 211, first groove wall 2111, second groove wall 2112, chamfer 2113, fixing component 22, storage groove 221, guide groove 222, positioning assembly 30, movable component 31, movable body 311, protrusion 312, elastic component 32, positioning component 33, holding groove 331, drive assembly 40, drive component 41, drive body 411, linkage body 412, linkage part 4121, limiting groove 4121a, rotating shaft 4122, control valve 413, rotating component 42, pushing body 421, arc-shaped part 4211, workpiece 200. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. 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 that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0035] Please see Figure 1This application provides a clamping device 100, which includes a base 10, a reference component 20 connected to the base 10, multiple sets of positioning components 30 movably connected to the reference component 20, and a drive component 40 connected to the base 10. The clamping device 100 can complete the clamping operation of multiple workpieces 200 at one time, improving clamping efficiency. The workpieces 200 are cylindrical products, such as round bars or guide sleeves. In this embodiment, the workpiece 200 is a round bar.

[0036] Please refer to the following: Figure 2 The base 10 includes a substrate 11 connected to the reference component 20 and a connector 12 connected to the substrate 11. The substrate 11 is generally plate-shaped, and the reference component 20 and the drive component 40 are spaced apart on the substrate 11. The connector 12 is generally rod-shaped and is located on the side of the substrate 11 away from the reference component 20. One end of the connector 12 is connected to the substrate 11, and the other end of the connector 12 is connected to an external device (not shown).

[0037] Thus, by spaced apart on the base plate 11, the reference component 20 and the drive component 40 stably support the reference component 20, the drive component 40, and multiple workpieces 200 to be clamped, ensuring that the clamping device 100 stably clamps multiple workpieces 200 and improving clamping stability. Furthermore, by providing the connector 12 to connect to an external device, the clamping device 100 is fixed within the working space of the external device, facilitating the external device to process the workpieces 200 clamped by the clamping device 100.

[0038] Please see Figure 2 and Figure 3 The reference component 20 is connected to the substrate 11 and includes a reference member 21 and a fixing member 22. The reference member 21 is generally rectangular in shape. The reference member 21 is connected to the substrate 11 and is provided with a plurality of positioning grooves 211. In this embodiment, the number of positioning grooves 211 is eight. The plurality of positioning grooves 211 are spaced apart along the extension direction of the reference member 21 on the side wall of the reference member 21. The fixing member 22 is generally rectangular in shape. The fixing member 22 is spaced apart from the reference member 21 on the substrate 11. The fixing member 22 is provided with a plurality of receiving grooves 221 and a plurality of guides. The slot 222 and multiple storage slots 221 are spaced apart on the side of the fixing member 22 away from the positioning slot 211. Multiple guide slots 222 are spaced apart on the side of the fixing member 22 facing the positioning slot 211. The cross-sectional area of ​​the guide slot 222 is smaller than the cross-sectional area of ​​the storage slot 221. The number of multiple storage slots 221, multiple guide slots 222, multiple positioning slots 211 and multiple sets of positioning components 30 are consistent and correspond one-to-one. The multiple storage slots 221 and the corresponding guide slots 222 are coaxially connected to each other to store multiple positioning components 30 respectively.

[0039] Thus, by setting the specific structure of the aforementioned reference component 20, the fixing component 22 supports multiple sets of positioning components 30, so that the multiple sets of positioning components 30 respectively push multiple workpieces 200 to the corresponding positioning grooves 211, thereby realizing the function of simultaneously positioning multiple workpieces 200.

[0040] Please continue reading. Figure 2 The positioning groove 211 includes a first groove wall 2111 and a second groove wall 2112. The first groove wall 2111 and the second groove wall 2112 are set at a preset angle. The first groove wall 2111 and the second groove wall 2112 respectively abut against different positions of the side wall of the workpiece 200. The end of the positioning groove 211 away from the base 10 is provided with a chamfer 2113.

[0041] Thus, by setting the first groove wall 2111 and the second groove wall 2112 at a preset angle, the positioning groove 211 has a conical groove structure. The positioning groove 211 abuts against the periphery of the workpiece 200 through the first groove wall 2111 and the second groove wall 2112 respectively to limit the workpiece 200, preventing the workpiece 200 from shaking or rotating during processing, thereby improving the clamping stability of the workpiece 200. In addition, by setting the chamfer 2113 mentioned above, when the workpiece 200 to be clamped is placed in the positioning groove 211, the chamfer 2113 avoids the workpiece 200 from colliding with the reference piece 21 during placement.

[0042] Please see Figure 1 , Figure 2 and Figure 3 Multiple positioning components 30 are movably connected to the reference component 20. Each positioning component 30 includes a movable component 31 movably inserted through the fixing component 22, an elastic component 32 sleeved on the movable component 31, and a positioning component 33 connected to the movable component 31. The movable component 31 is generally rod-shaped and movably inserted through the corresponding receiving groove 221 and the corresponding guide groove 222. Both ends of the movable component 31 extend out of the opposite sides of the fixing component 22. The elastic component 32 is disposed in the receiving groove 221 and sleeved on the movable component 31. Both ends of the elastic component 32 elastically abut against the bottom of the receiving groove 221 and the end of the movable component 31 away from the reference component 21, respectively. The positioning component 33 is generally block-shaped and is disposed on the side of the fixing component 22 facing the reference component 21 and connected to the movable component 31. In this embodiment, the elastic component 32 is a spring.

[0043] Thus, by setting the specific structure of the positioning component 30, the movable part 31 moves close to the reference part 21 under the guidance of the guide groove 222, and compresses the elastic part 32 to the bottom of the receiving groove 221, so that the positioning part 33 pushes the workpiece 200 to the positioning groove 211, thereby realizing the function of the positioning component 30 to clamp and position the workpiece 200.

[0044] Please see Figure 2and Figure 3 The movable component 31 includes a movable body 311 connected to the positioning component 33 and a protrusion 312 coaxially connected to the movable body 311. The movable body 311 is generally rod-shaped and movably passes through the corresponding guide groove 222 and the corresponding elastic component 32, and is connected to the corresponding positioning component 33. The protrusion 312 is generally cylindrical and is located on the side of the fixed component 22 opposite to the reference component 21 and is connected to the movable body 311. The cross-sectional area of ​​the protrusion 312 is larger than that of the movable body 311. The bottom of the protrusion 312 and the receiving groove 221 respectively abut against the two sides of the elastic component 32.

[0045] Thus, by setting the specific structure of the aforementioned movable part 31, the protrusion 312 drives the movable body 311 to move close to the reference part 21 under the guidance of the guide groove 222, and compresses the elastic part 32 to the bottom of the receiving groove 221, so that the movable body 311 drives the positioning part 33 to flexibly push the workpiece 200 to the positioning groove 211, thereby realizing the function of flexibly clamping the workpiece 200.

[0046] Please see Figure 2 The positioning member 33 has multiple abutment grooves 331 on the side facing the reference member 21. In this embodiment, there are eight abutment grooves 331. The multiple abutment grooves 331 are spaced apart along the vertical direction from the fixing member 22 to the reference member 21. The multiple abutment grooves 331 are located on the side of the positioning member 33 facing the reference member 21, and the multiple abutment grooves 331 correspond one-to-one with the multiple positioning grooves 211. The structures of the abutment grooves 331 and the positioning grooves 211 are roughly the same, and will not be described in detail here.

[0047] Thus, by setting the aforementioned abutment groove 331, the positioning member 33 pushes multiple workpieces 200 to multiple positioning grooves 211 through the multiple abutment grooves 331, so that the groove wall of the abutment groove 331 and the groove wall of the positioning groove 211 respectively abut against different positions of the side wall of the workpiece 200, thereby enabling the positioning member 33 to stably clamp the workpiece 200 to the reference member 21, thereby improving the clamping stability of the workpiece 200.

[0048] Please see Figure 2 The driving assembly 40 is connected to the base plate 11 and includes a driving member 41 and a rotating member 42. The driving member 41 is located on the side of the movable member 31 opposite to the positioning member 33 and is connected to the base plate 11. The rotating member 42 is generally rod-shaped and rotatably connected to the driving member 41. It is provided with multiple pushing bodies 421, which are generally block-shaped. Each pushing body 421 corresponds to one of the movable members 31, and the pushing bodies 421 are located on the side of the rotating member 42 facing the movable member 31. It can be understood that there are multiple rotating members 42, which are spaced apart and rotatably connected to the driving member 41. In this embodiment, there are four rotating members 42.

[0049] In this embodiment, each rotating component 42 has two protruding abutments 421 on the side facing the fixed component 22. The two abutments 421 correspond one-to-one with two adjacent movable components 31. Since the components of the multiple workpieces 200 and the positioning assembly 30 have certain tolerances, the length of the end of each movable component 31 extending away from the positioning component 33 from the fixed component 22 is different. Thus, when the driving component 41 drives the rotating component 42 to move closer to the fixed component 22, one of the abutments 421 abuts against the movable component 31 with the longer extension from the fixed component 22, causing the rotating component 42 to drive the other abutment 421 to rotate toward the adjacent movable component 31, so that the other abutment 421 abuts against the movable component 31 with the shorter extension from the fixed component 22, thereby adapting the rotating component 42 to the tolerance of the positioning assembly 30. Furthermore, after one of the positioning members 33 positions the workpiece 200 with a small or within-tolerance tolerance to the corresponding positioning groove 211, the rotating member 42 continues to push the two movable members 31 closer to the fixed member 22. At this time, the movable member 31 that has completed the positioning operation compresses the corresponding elastic member 32 to the bottom of the corresponding receiving groove 221. Simultaneously, under the reaction force of the movable member 31, the rotating member 42 rotates towards the adjacent movable member 31 and continues to push the movable member 31 that has not completed the positioning operation closer to the reference member 21 until the workpiece 200 within the tolerance range or the workpiece 200 with a large tolerance is positioned to the corresponding positioning groove 211, thereby adapting the rotating member 42 to the tolerance of the workpiece 200. In this way, by setting the specific structure of the drive assembly 40, the rotating member 42 can rotate to adapt to the tolerance of the positioning assembly 30 and the workpiece 200, thereby improving the clamping accuracy.

[0050] Please see Figure 2 In some embodiments, the driving component 41 includes a driving body 411, a linkage body 412, and a control valve 413. The driving body 411 is disposed on the base plate 11. In this embodiment, there are two driving bodies 411, which are spaced apart on the base plate 11. The linkage body 412 is generally plate-shaped. In this embodiment, there are two linkage bodies 412, which are respectively connected to the corresponding driving body 411. The linkage body 412 is connected to the driving body 411 and rotatably connected to the rotating component 42. The control valve 413 is disposed on the base plate 11 and communicates with the driving body 411 and an external air source. The control valve 413 opens or closes the air passage (not shown) between the external air source and the driving body 411 to control the driving body 411 to drive the linkage body 412 to move closer to or away from the fixed component 22. Exemplarily, the driving body 411 can be a cylinder, and the control valve 413 can be an intake valve.

[0051] Thus, by setting the specific structure of the aforementioned drive component 41, when clamping the workpiece 200, the control valve 413 opens the air passage between the external air source and the drive body 411, so that the gas provided by the external air source is delivered to the drive body 411 through the air passage, thereby controlling the drive body 411 to drive the linkage 412 to move the rotating component 42 closer to the fixed component 22, thereby realizing the function of the drive component 41 driving the rotating component 42 to move.

[0052] Please continue reading. Figure 2 In some embodiments, the linkage 412 includes a linkage part 4121 and a rotating shaft 4122. The linkage part 4121 is generally C-shaped and plate-shaped. The linkage part 4121 is connected to the drive body 411 and is provided with a limiting groove 4121a. The limiting groove 4121a accommodates and limits the rotating member 42. The rotating shaft 4122 is generally rod-shaped and is movably inserted through the linkage part 4121 and the rotating member 42. The two ends of the rotating shaft 4122 abut against the opposite sides of the linkage part 4121, so that the rotating member 42 is rotatably connected to the linkage part 4121.

[0053] Thus, by setting the specific structure of the linkage 412, the limiting groove 4121a accommodates the rotating member 42, so that the limiting groove 4121a limits the rotation direction of the rotating member 42, preventing the rotating member 42 from rotating in the direction of the base plate 11 pointing to the reference member 21 during rotation. In addition, the rotating shaft 4122 is movably inserted through the linkage part 4121 and the rotating member 42, and the two ends of the rotating shaft 4122 respectively abut against the opposite sides of the linkage part 4121, realizing the function of rotating connection between the rotating member 42 and the linkage part 4121.

[0054] Please see Figure 4 In some embodiments, the end of the pusher 421 facing the movable member 31 is an arc-shaped portion 4211.

[0055] Thus, by setting the end of the pusher 421 facing the movable member 31 to be an arc-shaped part 4211, the friction between the pusher 421 and the movable member 31 is reduced, which is conducive to the pusher 421 smoothly pushing the movable member 31 to move closer to the reference member 21.

[0056] The working process of the clamping device 100 described above is roughly as follows:

[0057] First, multiple workpieces 200 are placed sequentially in multiple positioning slots 211, and the base plate 11 supports the multiple workpieces 200.

[0058] Then, the control valve 413 opens the air passage between the external air source and the drive body 411. The gas provided by the external air source is delivered to the drive body 411 through the air passage to control the drive body 411 to drive the linkage body 412 to move the rotating part 42 closer to the fixed part 22.

[0059] Finally, driven by the driving member 41, the rotating member 42 drives multiple pushing bodies 421 to push against the corresponding movable members 31, so that the rotating member 42 rotates relative to the fixed member 22, and the multiple movable members 31 compress the corresponding elastic members 32 to the fixed member 22, thereby causing the multiple movable members 31 to drive the corresponding positioning members 33 to position the multiple workpieces 200 to the reference member 21, so as to realize the clamping operation of multiple workpieces 200 in one go and improve the clamping efficiency of workpieces 200.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A clamping device, characterized in that, include: Base; A reference assembly is connected to the base. The reference assembly includes a reference element and a fixing element, which are spaced apart from each other on the base. Multiple positioning components are movably connected to the reference component. Each positioning component includes a movable part, an elastic part, and a positioning part. The movable part is movably inserted through the fixed part, and its two ends extend out of the opposite sides of the fixed part. The elastic part is sleeved on the movable part, and its two ends elastically abut against the fixed part and the end of the movable part away from the reference component. The positioning part is located on the side of the fixed part facing the reference component and is connected to the other end of the movable part. as well as A driving assembly, connected to the base, includes a driving member and a rotating member. The driving member is located on the side of the movable member opposite to the positioning member and is connected to the base. The rotating member is rotatably connected to the driving member and has multiple pushing bodies. Each of the multiple pushing bodies corresponds one-to-one with a movable member of a set of positioning assemblies. The driving member drives the rotating member to move the multiple pushing bodies to push against the corresponding movable members, so that the rotating member rotates relative to the fixed member and the multiple movable members compress the corresponding elastic members to the fixed member, thereby driving the corresponding positioning members to position the workpiece to the reference member.

2. The clamping device as described in claim 1, characterized in that, The reference component is provided with multiple positioning grooves, which are spaced apart along the vertical direction from the fixing component to the reference component. Each positioning groove is located on the side of the reference component facing the fixing component. Each positioning component has a holding groove on the side facing the reference component. Each holding groove corresponds to one of the positioning grooves. Each holding groove holds the workpiece to the corresponding positioning groove under the action of the corresponding positioning component.

3. The clamping device as described in claim 2, characterized in that, Both the positioning groove and the abutment groove include a first groove wall and a second groove wall, which are arranged at a preset angle. The first groove wall and the second groove wall abut against different positions of the side wall of the workpiece.

4. The clamping device as described in claim 2, characterized in that, The openings of the positioning groove and the supporting groove at the ends away from the base are chamfered.

5. The clamping device as described in claim 1, characterized in that, The movable component includes: The movable body is movably inserted through the fixed member and the corresponding elastic member and connected to the corresponding positioning member; A protrusion is provided on the side of the fixed member facing the rotating member and coaxially connected to the movable body. The cross-sectional area of ​​the protrusion is larger than that of the movable body. The protrusion and the fixed member respectively abut against the two sides of the corresponding elastic member. Under the pushing of the corresponding pushing body, the protrusion drives the movable body to move closer to the reference member and compresses the corresponding elastic member to the fixed member.

6. The clamping device as described in claim 5, characterized in that, The fixing member is provided with multiple storage slots and multiple guide slots. The multiple storage slots are spaced apart on the side of the fixing member facing the driving member and correspond one-to-one with the multiple elastic members. The multiple storage slots respectively store the multiple elastic members. The multiple guide slots are respectively provided in correspondence with the multiple storage slots and are coaxially connected to the corresponding storage slots. The cross-sectional area of ​​the guide slot is smaller than the cross-sectional area of ​​the storage slot. The guide slot stores the movable body to guide the movable body.

7. The clamping device as described in claim 1, characterized in that, The driving component includes: A driving element is disposed on the base; Linkage body, connected to the drive body and rotatably connected to the rotating component; and A control valve is disposed on the base and connected to the drive body and an external air source. The control valve opens or closes the air passage between the external air source and the drive body to control the drive body to drive the linkage body to move closer to or away from the fixed part.

8. The clamping device as described in claim 7, characterized in that, The linkage includes a linkage part and a rotating shaft. The linkage part is connected to the drive body and is provided with a limiting groove. The limiting groove receives and limits the rotating component. The rotating shaft is movably inserted through the linkage part and the rotating component. The two ends of the rotating shaft abut against the opposite sides of the linkage part, so that the rotating component is rotatably connected to the linkage part.

9. The clamping device as described in claim 1, characterized in that, The end of the pusher facing the movable part is an arc-shaped portion.

10. The clamping device as claimed in claim 1, characterized in that, The base includes: A substrate, wherein the reference component and the driving component are disposed at intervals on the substrate; A connector is disposed on the side of the substrate opposite to the reference member. One end of the connector is connected to the substrate, and the other end of the connector is connected to an external device.

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