Drawing force test clamping device
By designing a clamping mechanism and force transmission device, and utilizing rotary drive components and elastic components to achieve stable clamping, the problems of poor accuracy and adaptability in existing pull-out force tests are solved, and the testing efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ANMEITAI TECH CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-21
AI Technical Summary
Existing clamping devices used in pull-out force testing suffer from poor accuracy and adaptability, resulting in low testing efficiency. They are particularly difficult to clamp small parts in compact environments, and changing the clamping device is complex.
A pull-out force testing clamping device is designed, including a clamping mechanism and a force transmission device. A second clamping plate is driven to approach the first clamping groove by a rotary drive component. Stable clamping and release are achieved by using support components and elastic components. The test adaptability is improved by combining flexible connectors.
It improves the accuracy and adaptability of testing, enhances testing efficiency, and can stably clamp columns of different diameters while reducing operational complexity.
Smart Images
Figure CN224152175U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pull-out force testing technology, and specifically relates to a pull-out force testing clamping device. Background Technology
[0002] Pull-out force testing is a critical step in the manufacturing process of product components. Some parts require cylindrical posts to be fixed to them through assembly, riveting, or welding for positioning or support. Pull-out force testing is necessary to verify whether the connection strength between the post and the base meets design requirements. In existing technology, two flat-jaw pliers are typically pushed horizontally closer together to clamp the post located between them, and then the pliers are driven to perform the pull-out force test. However, the clamped post is prone to loosening during the test, leading to unreliable test results and poor accuracy. In confined testing environments, it is difficult to directly clamp parts with limited testing space, resulting in poor adaptability. When the diameter of the tested cylinder varies significantly, operators need to change different models of clamping devices, increasing operational complexity and reducing testing efficiency.
[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is the poor accuracy and adaptability of testing, and the low efficiency of testing.
[0005] To solve the above-mentioned technical problems, this utility model provides a pull-out force testing clamping device. The pull-out force testing clamping device includes a clamping mechanism and a force transmission device for pulling the clamping mechanism. The clamping mechanism includes a first clamping plate with a first clamping groove, a support member mounted on the first clamping plate, a second clamping plate with a second clamping groove, and a driving member. The first clamping plate is connected to the force transmission device. The second clamping plate is rotatably connected to the support member. The second clamping groove is directly opposite the first clamping groove. The first clamping groove and the second clamping groove enclose a clamping space. The driving member passes through the second clamping plate and is threadedly connected to the second clamping plate. The support member is located between the driving member and the clamping space, so that by rotating the driving member, the second clamping plate is moved closer to the first clamping groove.
[0006] Optionally, the clamping mechanism further includes an elastic element connected to the first clamping plate and the second clamping plate respectively. The elastic element is located between the clamping space and the support member. The driving member drives the second clamping plate to bring the second clamping groove closer to the first clamping groove, so that the elastic element is in a compressed state; or the elastic element is configured to be in a compressed state when the second clamping groove is close to the first clamping groove, so as to provide a restoring force when the driving member is released.
[0007] Optionally, the force transmission device includes a connecting rod with a through groove and a flexible connector. The connecting rod is connected to the first clamping plate, the flexible connector passes through the through groove, and mounting rings are connected to both ends of the flexible connector.
[0008] Optionally, the first clamping groove, the second clamping groove, and the through groove extend along a first direction, which is the length extension direction of the connecting rod.
[0009] Optionally, the first clamping plate includes a fastening seat with a mounting hole, a connecting portion connected to the fastening seat, and a first clamping head connected to the connecting portion. The connecting rod is mounted in the mounting hole, the driving member is located between the fastening seat and the supporting member, the connecting portion is connected to the supporting member, the elastic member is connected to the connecting portion and is located between the connecting portion and the second clamping plate, and the first clamping groove is disposed in the first clamping head.
[0010] Optionally, the first clamping head includes a first clamping block connected to the connecting portion, and two limiting blocks respectively disposed on the first clamping block. The first clamping block is tapered in a direction away from the fastening seat, and the first clamping block and the two limiting blocks surround the first clamping groove.
[0011] Optionally, the second clamping plate includes a second clamping head and a pressing end connected to the second clamping head, the second clamping groove is disposed in the second clamping head, the pressing end is rotatably connected to the support member, the elastic member and the driving member are respectively connected to the pressing end, and the support member is located between the elastic member and the driving member.
[0012] Optionally, a threaded hole is provided at the pressing end, the driving member passes through the threaded hole, and the driving member is threadedly connected to the threaded hole. The projection of the driving member on the second clamping plate along the direction close to the second clamping plate is located on the second clamping plate.
[0013] Optionally, a first positioning hole is provided on the first clamping plate, the first positioning hole being located between the first clamping groove and the supporting component; a second positioning hole is provided on the pressing end, the second positioning hole being directly opposite the first positioning hole, one end of the elastic member being connected to the first positioning hole, and the other end of the elastic member being connected to the second positioning hole.
[0014] Optionally, the support component includes a rotating shaft and two mounting blocks respectively disposed on the first clamping plate. The two mounting blocks are arranged at intervals, and the rotating shaft passes through one mounting block, the second clamping plate, and the other mounting block in sequence.
[0015] Beneficial effects:
[0016] This utility model provides a pull-out force testing clamping device. A first clamping plate in the clamping mechanism is connected to a force transmission device. A support component is installed on the first clamping plate. A second clamping plate is rotatably connected to the support component. A second clamping groove on the second clamping plate is directly opposite to a first clamping groove on the first clamping plate. The first and second clamping grooves enclose a clamping space. A driving member passes through the second clamping plate and is threadedly connected to the second clamping plate. The support component is located between the driving member and the clamping space. By rotating the driving member, the second clamping plate is driven to move the second clamping groove on the second clamping plate toward the first clamping groove on the first clamping plate. When it is necessary to clamp the column, the rotating drive component causes the end of the second clamping plate closest to the drive component to move away from the first clamping plate. Since the second clamping plate is rotatably connected to the support component, which is located between the drive component and the first clamping groove, the end of the second clamping plate furthest from the drive component will move towards the first clamping groove. This causes the second clamping groove on the end of the second clamping plate furthest from the drive component to move closer to the first clamping groove, thereby clamping the column located between the second clamping groove and the first clamping groove. The column is clamped in the clamping space, and then the force transmission device pulls the first clamping plate to perform a pull-out force test on the column clamped in the clamping space. When the column needs to be removed, the reverse rotation of the drive mechanism causes the end of the second clamping plate closest to the drive mechanism to move towards the first clamping plate. Simultaneously, the end of the second clamping plate furthest from the drive mechanism moves away from the first clamping slot, causing the second clamping slot on that end to move away from the first clamping slot, thus releasing the column clamped within the clamping space. This achieves the technical effect of improving testing accuracy and adaptability, and enhancing testing efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of a pull-out force testing clamping device provided in an embodiment of the present invention.
[0019] Figure 2 This is a schematic diagram of the structure of the support component in a pull-out force testing clamping device provided in an embodiment of the present invention.
[0020] Figure 3 This is a schematic diagram of the drive component in a pull-out force testing clamping device provided in an embodiment of the present utility model.
[0021] Figure 4 This is a schematic diagram of the structure of the rotating shaft in a pull-out force testing clamping device provided in an embodiment of the present utility model.
[0022] Figure 5 This is a schematic diagram of the structure of the first clamping head in a pull-out force testing clamping device provided in an embodiment of the present utility model.
[0023] Figure 6 This is a schematic diagram of the structure of the second clamping groove in a pull-out force testing clamping device provided in an embodiment of the present invention.
[0024] The meanings of the labels in the attached diagram are as follows:
[0025] 1—Clamping mechanism, 11—First clamping plate, 111—First clamping groove, 112—Fastening seat, 1121—Mounting hole, 113—Connecting part, 1131—First positioning hole, 114—First clamping head, 1141—First clamping block, 1142—Limiting block, 12—Supporting component, 121—Rotating shaft, 122—Mounting block, 13—Second clamping plate, 131—Second clamping groove, 1311—Clamping space, 132—Second clamping head, 133—Pressing end, 1331—Threaded hole, 1332—Second positioning hole, 14—Driver, 15—Elastic component, 2—Force transmission device, 21—Connecting rod, 211—Through groove, 22—Flexible connector, 221—Mounting ring, 3—Column. Detailed Implementation
[0026] The embodiments of this application are described in detail below. Examples of the 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.
[0027] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.
[0029] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.
[0030] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.
[0031] This utility model provides a pull-out force testing clamping device. Please refer to [link to relevant documentation]. Figures 1 to 6 As shown, Figure 1 This is a schematic diagram of the structure of a pull-out force testing clamping device provided in an embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of the support component in a pull-out force testing clamping device provided in an embodiment of this utility model. Figure 3 This is a schematic diagram of the drive component in a pull-out force testing clamping device provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the rotating shaft in a pull-out force testing clamping device provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the first clamping head in a pull-out force testing clamping device provided in an embodiment of this utility model. Figure 6 This is a schematic diagram of the structure of the second clamping groove in a pull-out force testing clamping device provided in this embodiment of the present invention. The pull-out force testing clamping device provided in this embodiment of the present invention includes a clamping mechanism 1 and a force transmission device 2. The force transmission device 2 is used to pull out the clamping mechanism 1. The clamping mechanism 1 includes a first clamping plate 11, a support member 12, a second clamping plate 13, and a driving member 14. The first clamping plate 11 has a first clamping groove 111 and is connected to the force transmission device 2. The support member 12 is mounted on the first clamping plate 11. The second clamping plate 13 has a second clamping groove 131 and is connected to the force transmission device 2. The support member 12 is rotatably connected, the second clamping groove 131 is directly opposite the first clamping groove 111, the first clamping groove 111 and the second clamping groove 131 enclose a clamping space 1311, the driving member 14 passes through the second clamping plate 13 and is threadedly connected to the second clamping plate 13, the support member 12 is located between the driving member 14 and the clamping space 1311, so that by rotating the driving member 14, the second clamping plate 13 will be driven to move the second clamping groove 131 toward the direction closer to the first clamping groove 111.
[0032] The first clamping groove 111 is formed on the first clamping plate 11, and the second clamping groove 131 is formed on the second clamping plate 13. The first clamping groove 111 and the second clamping groove 131 enclose a clamping space 1311, and the interior of the clamping space 1311 has space to accommodate the column 3. The driving component 14 may include a screw, and a bolt with an internal hexagonal socket may be provided on the end of the screw away from the first clamping plate 11 to facilitate rotation of the driving screw by a hexagonal wrench.
[0033] The driving member 14 can contact the first clamping plate 11 after passing through the second clamping plate 13. When the driving member 14 is rotated in the forward direction, the driving member 14 will gradually approach the first clamping plate 11 until the first clamping plate 11 and the driving member 14 contact each other. If the driving member 14 is rotated in the forward direction, the second clamping plate 13 connected to the driving member 14 will move away from the first clamping plate 11 on the driving member 14. Since the supporting member 12 forms a lever fulcrum between the driving member 14 and the second clamping groove 131, it is convenient to drive the movement of the second clamping plate 13 by rotating the driving member 14. At this time, the second clamping groove 131 away from the driving member 14 will approach the first clamping groove 111, thereby clamping the column 3.
[0034] In this embodiment, the first clamping plate 11 in the clamping mechanism 1 is connected to the force transmission device 2. The support member 12 is installed on the first clamping plate 11. The second clamping plate 13 is rotatably connected to the support member 12. The second clamping groove 131 located on the second clamping plate 13 is directly opposite to the first clamping groove 111 located on the first clamping plate 11. The first clamping groove 111 and the second clamping groove 131 enclose a clamping space 1311. The driving member 14 passes through the second clamping plate 13 and is threadedly connected to the second clamping plate 13. The support member 12 is located between the driving member 14 and the clamping space 1311, so that by rotating the driving member 14, the second clamping plate 13 is driven to move the second clamping groove 131 located on the second clamping plate 13 toward the direction close to the first clamping groove 111 located on the first clamping plate 11. When it is necessary to clamp the column 3, the drive member 14 is rotated to move the end of the second clamping plate 13 near the drive member 14 away from the first clamping plate 11. Since the second clamping plate 13 is rotatably connected to the support member 12, and the support member 12 is located between the drive member 14 and the first clamping groove 111, the end of the second clamping plate 13 away from the drive member 14 will move towards the first clamping groove 111, causing the second clamping groove 131 on the end of the second clamping plate 13 away from the drive member 14 to move closer to the first clamping groove 111, thereby clamping the column 3 located between the second clamping groove 131 and the first clamping groove 111. The column 3 is clamped in the clamping space 1311, and then the force transmission device 2 pulls the first clamping plate 11 to perform a pull-out force test on the column 3 clamped in the clamping space 1311. When it is necessary to remove the column 3, the drive member 14 is rotated in the opposite direction, causing the end of the second clamping plate 13 closest to the drive member 14 to move towards the first clamping plate 11. At this time, the end of the second clamping plate 13 furthest from the drive member 14 will move away from the first clamping groove 111, causing the second clamping groove 131 on the end of the second clamping plate 13 furthest from the drive member 14 to move away from the first clamping groove 111, thus releasing the column 3 clamped in the clamping space 1311. This achieves the technical effect of improving the accuracy and adaptability of the test and increasing the test efficiency.
[0035] In one embodiment, the clamping mechanism 1 further includes an elastic element 15, which may include a spring. The elastic element 15 is connected to the first clamping plate 11 and the second clamping plate 13 respectively. The elastic element 15 is located between the clamping space 1311 and the support member 12. The driving member 14 drives the second clamping plate 13 to bring the second clamping groove 131 closer to the first clamping groove 111, so that the elastic element 15 is in a compressed state. When the driving member 14 is rotated in the opposite direction, the driving member 14 will gradually move away from the first clamping plate 11 until the first clamping plate 11 and the driving member 14 separate from each other. At this time, the elastic element 15 restores its deformation and pushes the second clamping groove 131 away from the first clamping groove 111, making it easier to put the column 3 between the second clamping groove 131 and the first clamping groove 111. When the drive member 14 rotates, causing the second clamping plate 13 to move closer to the first clamping plate 11, the distance between the second clamping groove 131 and the first clamping groove 111 gradually decreases, and the column 3 in the clamping space 1311 is clamped. At the same time, the elastic member 15 is compressed, which not only enhances the stability of the clamping but also provides a certain buffer when the column 3 is subjected to a pulling force, protecting the column 3 from damage. When the drive member 14 rotates in the opposite direction to release the column 3, the restoring force of the elastic member 15 helps the second clamping plate 13 to quickly return to its initial position, improving operating efficiency. Alternatively, the elastic member 15 can be configured to be in a compressed state when the second clamping groove 131 approaches the first clamping groove 111, so as to provide a restoring elastic force for the second clamping groove 131 and the first clamping groove 111 to move away from each other when the drive member 14 is released.
[0036] In some embodiments, the force transmission device 2 includes a connecting rod 21 and a flexible connector 22. The connecting rod 21 has a through groove 211 and is connected to the first clamping plate 11. The flexible connector 22 passes through the through groove 211, and mounting rings 221 are connected to both ends of the flexible connector 22. The flexible connector 22 includes a steel rope. The force transmission device 2 may also include a pull-out force testing machine or a push-pull force gauge. The mounting rings 221 can be connected to the pull-out force testing machine or the push-pull force gauge for pull-out force testing. During the pull-out force test, the flexible connector 22 is connected to the testing equipment through the mounting rings 221, which can flexibly adapt to pull forces in different directions. At the same time, the through groove 211 allows the flexible connector 22 to move freely on the connecting rod 21, reducing frictional resistance caused by changes in the direction of the pull force and improving the accuracy of the test. Furthermore, the flexible connector 22 is flexible, which can achieve uniform force distribution and vertical pull-out during the test.
[0037] In one embodiment, the first clamping groove 111, the second clamping groove 131, and the through groove 211 extend along a first direction, which is the length extension direction of the connecting rod 21, i.e., the first direction is... Figure 4The left and right directions ensure that the tension can be smoothly transmitted to the clamped column 3, and the aligned extension direction also helps to reduce errors caused by structural deviations and improve the accuracy of the test.
[0038] In some embodiments, the first clamping plate 11 includes a fastening seat 112, a connecting portion 113, and a first clamping head 114. The connecting portion 113 is connected to both the fastening seat 112 and the support member 12. The first clamping head 114 is connected to the connecting portion 113. The fastening seat 112, the connecting portion 113, and the first clamping head 114 can be integrally formed. The fastening seat 112 has a mounting hole 1121. A connecting rod 21 is installed in the mounting hole 1121. A driving member 14 is located between the fastening seat 112 and the support member 12. An elastic member 15 is connected to the connecting portion 113 and is located between the connecting portion 113 and the second clamping plate 13. A first clamping groove 111 is provided in the first clamping head 114. In the pull-out force test, the fastening seat 112 and the connecting portion 113 provide stable support for the first clamping head 114, ensuring the stability and accuracy of the clamping.
[0039] In one embodiment, the first clamping head 114 includes a first clamping block 1141 and two limiting blocks 1142. The first clamping block 1141 is connected to the connecting part 113. The first clamping block 1141 is tapered in the direction away from the fastening seat 112. The two limiting blocks 1142 are respectively disposed on the first clamping block 1141. The first clamping block 1141 and the two limiting blocks 1142 surround the first clamping groove 111, so that the first clamping groove 111 can provide better fit and clamping force when clamping the column 3. At the same time, the tapered first clamping block 1141 helps to reduce the external space occupied and improve the convenience of operation.
[0040] In some embodiments, the second clamping plate 13 includes a second clamping head 132 and a pressing end 133. A second clamping groove 131 is disposed on the second clamping head 132. The pressing end 133 is connected to the second clamping head 132 and is rotatably connected to the support member 12. An elastic member 15 and a driving member 14 are respectively connected to the pressing end 133. The support member 12 is located between the elastic member 15 and the driving member 14. During operation, rotating the driving member 14 causes the pressing end 133 to move the second clamping plate 13 on the driving member 14 in a direction away from the first clamping plate 11. Due to the rotatable connection between the pressing end 133 and the support member 12, the end of the second clamping plate 13 away from the driving member 14 will move towards the first clamping groove 111 to reduce the clamping space 1311, thereby achieving a firm clamping of the column 3. When it is necessary to release the column 3, rotating the driving member 14 in the opposite direction will remove the column 3.
[0041] In one embodiment, a threaded hole 1331 is provided in the pressing end 133, the driving member 14 passes through the threaded hole 1331, and the driving member 14 is threadedly connected to the threaded hole 1331. The driving member 14 can stably drive the pressing end 133 and the second clamping plate 13 to move, and precisely control the size of the clamping space 1311. The projection of the driving member 14 on the second clamping plate 13 along the direction close to the second clamping plate 13 is located on the second clamping plate 13, so that the driving member 14 can always maintain contact with the second clamping plate 13 during rotation, avoiding the problem of clamping instability caused by the offset of the driving member 14.
[0042] In one embodiment, a first positioning hole 1131 is provided in the first clamping plate 11, which is located between the first clamping groove 111 and the support member 12. A second positioning hole 1332 is provided in the pressing end 133, which is directly opposite to the first positioning hole 1131. One end of the elastic member 15 is connected to the first positioning hole 1131, and the other end of the elastic member 15 is connected to the second positioning hole 1332. This allows the elastic member 15 to be stably connected between the first clamping plate 11 and the pressing end 133, providing continuous elastic support for the movement of the second clamping plate 13. At the same time, the first positioning hole 1131 and the second positioning hole 1332 ensure the accuracy and stability of the elastic member 15 during the connection process, avoiding unstable clamping due to improper connection.
[0043] In some embodiments, the support member 12 includes a rotating shaft 121 and two mounting blocks 122. The two mounting blocks 122 are respectively disposed on the first clamping plate 11 and are spaced apart. The rotating shaft 121 passes through one mounting block 122, the second clamping plate 13, and the other mounting block 122 in sequence, so that the support member 12 can stably support the second clamping plate 13 and allow the second clamping plate 13 to rotate flexibly around the rotating shaft 121. At the same time, the mounting blocks 122 and the rotating shaft 121 ensure the stability and durability of the support member 12 during the clamping process. In operation, the second clamping plate 13 can be moved around the rotating shaft 121 by rotating the drive member 14 to achieve clamping and releasing of the column 3.
[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0045] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A tensile test gripping device, characterized in that The pull-out force testing clamping device includes a clamping mechanism and a force transmission device for pulling the clamping mechanism. The clamping mechanism includes a first clamping plate with a first clamping groove, a support member mounted on the first clamping plate, a second clamping plate with a second clamping groove, and a driving member. The first clamping plate is connected to the force transmission device. The second clamping plate is rotatably connected to the support member. The second clamping groove is directly opposite the first clamping groove. The first clamping groove and the second clamping groove enclose a clamping space. The driving member passes through the second clamping plate and is threadedly connected to the second clamping plate. The support member is located between the driving member and the clamping space, so that by rotating the driving member, the second clamping plate is driven to move the second clamping groove toward the direction closer to the first clamping groove.
2. The pull force test clamping device of claim 1, wherein, The clamping mechanism further includes an elastic element, which is connected to the first clamping plate and the second clamping plate respectively. The elastic element is located between the clamping space and the support member. The driving member drives the second clamping plate to bring the second clamping groove closer to the first clamping groove, so that the elastic element is in a compressed state; or the elastic element is configured to be in a compressed state when the second clamping groove is close to the first clamping groove, so as to provide a restoring force when the driving member is released.
3. The pull force test clamping device of claim 2, wherein, The force transmission device includes a connecting rod with a through groove and a flexible connector. The connecting rod is connected to the first clamping plate, and the flexible connector passes through the through groove. Mounting rings are connected to both ends of the flexible connector.
4. The pull force test clamping device of claim 3, wherein, The first clamping groove, the second clamping groove, and the through groove extend along a first direction, which is the length extension direction of the connecting rod.
5. The pull force test clamping device of claim 3, wherein, The first clamping plate includes a fastening seat with a mounting hole, a connecting part connected to the fastening seat, and a first clamping head connected to the connecting part. The connecting rod is installed in the mounting hole. The driving member is located between the fastening seat and the supporting member. The connecting part is connected to the supporting member. The elastic member is connected to the connecting part and is located between the connecting part and the second clamping plate. The first clamping groove is disposed in the first clamping head.
6. The pull force test clamping device of claim 5, wherein, The first clamping head includes a first clamping block connected to the connecting portion, and two limiting blocks respectively disposed on the first clamping block. The first clamping block is tapered in a direction away from the fastening seat, and the first clamping block and the two limiting blocks surround the first clamping groove.
7. The pull force test clamping device of claim 2, wherein, The second clamping plate includes a second clamping head and a pressing end connected to the second clamping head. The second clamping groove is disposed in the second clamping head. The pressing end is rotatably connected to the supporting member. The elastic member and the driving member are respectively connected to the pressing end. The supporting member is located between the elastic member and the driving member.
8. The pull force test clamping device of claim 7, wherein, A threaded hole is provided at the pressing end, the driving member passes through the threaded hole, and the driving member is threadedly connected to the threaded hole. The projection of the driving member on the second clamping plate along the direction close to the second clamping plate is located on the second clamping plate.
9. The pull force test clamping device of claim 7, wherein, A first positioning hole is provided on the first clamping plate, and the first positioning hole is located between the first clamping groove and the support component; a second positioning hole is provided on the pressing end, and the second positioning hole is directly opposite the first positioning hole; one end of the elastic member is connected to the first positioning hole, and the other end of the elastic member is connected to the second positioning hole.
10. The pull force test clamping device of claim 1, wherein, The support component includes a rotating shaft and two mounting blocks respectively disposed on the first clamping plate. The two mounting blocks are arranged at intervals, and the rotating shaft passes through one mounting block, the second clamping plate and the other mounting block in sequence.