Clamping jaw device and carrying device

By introducing a limit assembly into the clamping device and slidingly connecting it with the clamping part, the problem of loose clamping is solved, the stability and safety of clamping are improved, and the device is suitable for biological detection.

CN223419571UActive Publication Date: 2025-10-10SHENZHEN MEGAROBO TECH CO LTD
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Patent Information

Application Number
CN202422855350.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-10
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

During the biological testing process, when clamping the test tube, there is a gap between the cylinder and the test tube clamp, which causes the test tube to be not firmly clamped and easily deflected, causing the test tube to fall off, affecting safety.

Method used

A clamping claw device is used, including a mounting plate, a clamping assembly, a driving assembly and a limiting assembly. The limiting assembly is slidably connected to the end of the clamping part to guide the clamping part to move stably, avoid swinging, and improve stability and firmness.

Benefits of technology

It effectively improves the stability and firmness of the clamping, and improves the safety of biological testing and the safety of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a clamping jaw device and a carrying device. The clamping jaw device comprises a mounting plate, a clamping assembly, a driving assembly and a limiting assembly. The material clamping assembly comprises a first clamping part and a second clamping part which move oppositely. The driving assembly is arranged on the mounting plate, the driving assembly is connected with at least one of the first clamping part and the second clamping part, and the driving assembly is used for enabling the first clamping part and the second clamping part to move oppositely. The limiting assembly is arranged on the mounting plate. Wherein the first clamping part is provided with a first end close to the driving assembly, the second clamping part is provided with a second end close to the driving assembly, and the limiting assembly is connected with the first end and the second end in a sliding mode so as to guide the first clamping part and the second clamping part to move oppositely under driving of the driving assembly. In this way, the stability of the first clamping part and the second clamping part in the moving process is effectively improved, and the clamping firmness and reliability of the clamping jaw device are effectively improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of biological detection, specifically, relates to a clamping jaw device and carrying device. BACKGROUND

[0002] In the process of biological detection, often need to utilize the test tube clamp with multiple clamping positions, disposablely clamps multiple test tubes and carries out batch processing.

[0003] However, when the clamping part of the test tube clamp driven by the air cylinder moves towards each other to clamp or release the test tube, due to the gap between the air cylinder and the test tube clamp, the clamping part of the test tube clamp is prone to deflection during movement, which leads to unstable clamping of the test tube and the test tube falling off, greatly affecting the safety of biological detection and operators. SUMMARY

[0004] In order to at least partially solve the problems in the prior art, according to one aspect of the utility model, a clamping jaw device is provided. The clamping jaw device includes a mounting plate, a clamping component, a driving component, and a limiting component. The clamping component includes a first clamping part and a second clamping part that move towards each other. The driving component is arranged on the mounting plate, and the driving component is connected to at least one of the first clamping part and the second clamping part. The driving component is used to move the first clamping part and the second clamping part towards each other. The limiting component is arranged on the mounting plate. The first clamping part has a first end close to the driving component, and the second clamping part has a second end close to the driving component. The limiting component is connected to the first end and the second end, respectively, to guide the first clamping part and the second clamping part to move towards each other under the driving of the driving component.

[0005] The clamping jaw device of the utility model can connect the first end of the first clamping part and the second end of the second clamping part through the limiting component when the driving component drives the first clamping part and the second clamping part to move towards each other, and guide the stable movement of the first clamping part and the second clamping part. This avoids the swinging of the first clamping part and the second clamping part during movement, which leads to unstable clamping. This effectively improves the stability of the first clamping part and the second clamping part during movement, as well as the firmness and reliability of the clamping jaw device. When the clamping jaw device is applied to biological detection, it can effectively improve the safety of biological detection and operators.

[0006] Exemplarily, the limiting component includes a sliding rail and a first sliding block group connected to the sliding rail. One of the first sliding block group and the sliding rail is connected to the mounting plate, and the other of the first sliding block group and the sliding rail is connected to the first end and the second end, respectively.

[0007] Exemplarily, the material clamping assembly further comprises a second slider group, the first clamping part and the second clamping part are connected with the second slider group respectively, and the driving assembly drives the first clamping part and the second clamping part to move towards each other through the second slider group.

[0008] Exemplarily, the first slider group and the second slider group are arranged along a first length direction, wherein the first length direction is a length direction of the first clamping part and the second clamping part.

[0009] Exemplarily, a first groove matched with the first slider group is formed on a side of the first clamping part facing the driving assembly, a second groove matched with the second slider group is formed on a side of the second clamping part facing the driving assembly, the first slider group is embedded in the first groove, and the second slider group is embedded in the second groove.

[0010] Exemplarily, the first clamping part has a first force receiving end away from the driving assembly, the second clamping part has a second force receiving end away from the driving assembly, and the material clamping assembly further comprises a first elastic member, two ends of the first elastic member are connected to the first force receiving end and the second force receiving end respectively, and the first elastic member is used for applying an action force to the first force receiving end and the second force receiving end respectively so as to make the first force receiving end and the second force receiving end close to each other.

[0011] Exemplarily, the material clamping assembly further comprises a second elastic member, two ends of the second elastic member are connected to the first clamping part and the second clamping part respectively and are arranged close to the driving assembly relative to the first elastic member, and the second elastic member is used for applying an action force to the first end of the first clamping part and the second end of the second clamping part so as to make the first end and the second end close to each other.

[0012] Exemplarily, the material clamping assembly further comprises a guide member, the guide member is sequentially arranged through the first force receiving end and the second force receiving end, so that the first clamping part and the second clamping part can move towards each other along a length direction of the guide member.

[0013] Exemplarily, the clamping jaw device further comprises an electromagnetic valve assembly, the electromagnetic valve assembly is connected with the driving assembly, and the electromagnetic valve assembly is used for controlling the opening and closing of the driving assembly.

[0014] Exemplarily, the clamping jaw device further comprises a clamping assembly, the clamping assembly is arranged on the mounting plate, and the clamping assembly is used for clamping a single object to be clamped.

[0015] According to another aspect of the utility model, a carrying device is also provided, which comprises a carrying arm and the clamping jaw device as described above, and the clamping jaw device is arranged on a movable end of the carrying arm.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to make the technical means of the utility model more clearly understood and implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the specific implementation manner of the utility model is described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other purposes, features, and advantages of the present invention will become more apparent through a more detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and are not intended to limit the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0018] Figure 1 shows a first perspective view of a clamping device according to an exemplary embodiment of the present invention;

[0019] Figure 2 shows a second perspective view of a clamping device according to an exemplary embodiment of the present invention;

[0020] Figure 3 A perspective view of a transport device according to an exemplary embodiment of the present invention is shown.

[0021] Among them, the components represented by the reference numerals in the figures are:

[0022] 1. Mounting plate; 2. Clamping assembly; 21. First clamping part; 211. First end; 212. First groove; 213. First force-bearing end; 22. Second clamping part; 221. Second end; 222. Second groove; 223. Second force-bearing end; 23. Second slider group; 24. First elastic member; 25. Guide member; 3. Drive assembly; 31. Slide groove; 4. Limit assembly; 41. Slide rail; 42. First slider group; 5. Solenoid valve assembly; 6. Clamping assembly; 61. Drive member; 62. Clamping member; 7. Carrying arm. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more apparent, the following exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention. It should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in this utility model, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present utility model.

[0024] In the following description, numerous specific details are provided in order to provide a thorough understanding of the present application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures have not been described in detail in order to avoid obscuring aspects of the present application.

[0025] In order to thoroughly understand the embodiments of the present application, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present application is not limited to the special details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can also have other embodiments.

[0026] One embodiment of the present application provides a clamping jaw device, which can avoid the first clamping part 21 and the second clamping part 22 from swinging during movement, thereby causing the clamping material to be unstable. The clamping jaw device according to the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] As shown in Figure 1 and Figure 2 , the clamping jaw device comprises a mounting plate 1, a clamping material assembly 2, a driving assembly 3 and a limiting assembly 4. The clamping material assembly 2 comprises a first clamping part 21 and a second clamping part 22 moving towards each other. The driving assembly 3 is arranged on the mounting plate 1, and the driving assembly 3 is connected to at least one of the first clamping part 21 and the second clamping part 22, and the driving assembly 3 is used to move the first clamping part 21 and the second clamping part 22 towards each other. The limiting assembly 4 is arranged on the mounting plate 1. Among them, the first clamping part 21 has a first end 211 close to the driving assembly 3, the second clamping part 22 has a second end 221 close to the driving assembly 3, and the limiting assembly 4 is respectively connected with the first end 211 and the second end 221 to guide the first clamping part 21 and the second clamping part 22 to move towards each other under the driving of the driving assembly 3.

[0028] The shape of the mounting plate 1 can be plate-shaped, and the plate-shaped mounting plate 1 can provide a fixed platform for the driving assembly 3 and the limiting assembly 4, so as to form a stable connection relationship between the components in the clamping jaw device.

[0029] The shape of the first clamping part 21 and the second clamping part 22 can be long strip-shaped, and the long strip-shaped first clamping part 21 and the second clamping part 22 can be matched to form a plurality of clamping positions along the length direction, and the plurality of clamping positions can be used to clamp or release a plurality of clamping materials at the same time.

[0030] The drive assembly 3 can drive the first clamping portion 21 and the second clamping portion 22 to move toward each other or away from each other. The drive assembly 3 can be a cylinder or other device capable of driving the first clamping portion 21 and the second clamping portion 22 to move toward each other. This application does not specifically limit the type of the drive assembly 3.

[0031] When the drive assembly 3 is connected to at least one of the first clamping portion 21 and the second clamping portion 22, a gap is likely to exist at the connection. When the drive assembly 3 drives the first clamping portion 21 and the second clamping portion 22 to move toward each other, the gap may easily cause the first clamping portion 21 and the second clamping portion 22 to swing during the movement. The limit assembly 4 can be slidably connected to the first end 211 and the second end 221, respectively, to improve the overall stability of the clamping jaw device while also guiding the first clamping portion 21 and the second clamping portion 22 to slide smoothly, thereby preventing the clamping assembly 2 from loosely clamping.

[0032] In the clamping device of the present invention, when the driving component 3 drives the first clamping part 21 and the second clamping part 22 to move toward each other, the limiting component 4 can be connected to the first end 211 of the first clamping part 21 and the second end 221 of the second clamping part 22, respectively, and guide the first clamping part 21 and the second clamping part 22 to move stably, thereby preventing the first clamping part 21 and the second clamping part 22 from swinging during movement, which in turn causes the material to be clamped loosely, effectively improving the stability of the first clamping part 21 and the second clamping part 22 during movement, as well as the firmness and reliability of the clamping device. When the clamping device is used in biological detection, it can effectively improve the safety of biological detection and operator use.

[0033] In some embodiments, as Figure 1 and Figure 2 As shown, the limiting assembly 4 includes a slide rail 41 and a first slider group 42 slidably connected to the slide rail 41, one of the first slider group 42 and the slide rail 41 is connected to the mounting plate 1, and the other of the first slider group 42 and the slide rail 41 is respectively connected to the first end 211 and the second end 221.

[0034] The length direction of the slide rail 41 may be perpendicular to the movement direction of the first clamping portion 21 and the second clamping portion 22 to ensure that the first clamping portion 21 and the second clamping portion 22 can move toward each other along the slide rail 41 .

[0035] like Figure 2 As shown, the first slider group 42 may include two first sliders respectively arranged corresponding to the first end 211 and the second end 221 , and the first end 211 of the first clamping portion 21 and the second end 221 of the second clamping portion 22 may be slidably connected to the slide rail 41 through the two first sliders.

[0036] The two first sliding blocks can be detachably connected with the first end 211 and the second end 221 respectively or integrally formed, and the detachable connection can include plug-in connection or adhesive connection, etc., which is not limited in the present application.

[0037] In the above embodiment, through the sliding connection of the slide rail 41 and the first sliding block group 42, not only the connection relationship between the mounting plate 1 and the clamping assembly 2 can be increased, thereby improving the overall firmness, but also the first clamping part 21 and the second clamping part 22 can move smoothly towards each other, effectively ensuring the stability of the clamping assembly 2 during movement.

[0038] In some embodiments, as shown in Figure 1 and Figure 2 , the clamping assembly 2 further comprises a second sliding block group 23, and the first clamping part 21 and the second clamping part 22 are connected with the second sliding block group 23 respectively, and the driving assembly 3 drives the first clamping part 21 and the second clamping part 22 to move towards each other through the second sliding block group 23.

[0039] The side of the driving assembly 3 facing the clamping assembly 2 can be formed with a sliding groove 31 matched with the second sliding block group 23, and the second sliding block group 23 can be slidably connected with the sliding groove 31.

[0040] The second sliding block group 23 can include two second sliding blocks respectively corresponding to the first clamping part 21 and the second clamping part 22, and the first clamping part 21 and the second clamping part 22 can be slidably connected with the sliding groove 31 through the two second sliding blocks respectively.

[0041] In the above embodiment, the driving assembly 3 can drive the first clamping part 21 and the second clamping part 22 to move towards each other through the second sliding block group 23, so as to not only improve the automation level of the clamping jaw device and reduce manual operation, but also reduce the friction between the driving assembly 3 and the clamping assembly 2, thereby ensuring that the first clamping part 21 and the second clamping part 22 can move smoothly, effectively improving the clamping firmness of the clamping jaw device.

[0042] In some embodiments, as shown in Figure 1 and Figure 2 , the first sliding block group 42 and the second sliding block group 23 are spaced apart along a first length direction, wherein the first length direction is the length direction of the first clamping part 21 and the second clamping part 22.

[0043] In the above embodiment, the first sliding block group 42 and the second sliding block group 23 can be spaced apart along the first length direction, effectively simplifying the connection structure of the clamping jaw device and improving the layout rationality of the clamping jaw device.

[0044] In some embodiments, as shown in Figure 1As shown, a first groove 212 adapted to the first slider group 42 is formed on the side of the first clamping portion 21 facing the driving component 3, and a second groove 222 adapted to the second slider group 23 is formed on the side of the second clamping portion 22 facing the driving component 3. The first slider group 42 is embedded in the first groove 212, and the second slider group 23 is embedded in the second groove 222.

[0045] In the above embodiment, the first slider group 42 can be embedded in the first groove 212, and the second slider group 23 can be embedded in the second groove 222, thereby effectively reducing the volume of the clamping device and further improving the rationality of the layout of the clamping device.

[0046] In some embodiments, as Figure 3 As shown, the first clamping portion 21 has a first force-bearing end 213 away from the driving component 3, and the second clamping portion 22 has a second force-bearing end 223 away from the driving component 3. The clamping component 2 also includes a first elastic member 24, and the two ends of the first elastic member 24 are respectively connected to the first force-bearing end 213 and the second force-bearing end 223. The first elastic member 24 is used to apply a force to the first force-bearing end 213 and the second force-bearing end 223 to bring the two closer to each other.

[0047] The first force-bearing end 213 and the second force-bearing end 223 can be respectively provided with a first fixing portion and a second fixing portion on the end surfaces away from the driving component 3, and the two ends of the first elastic member 24 can be respectively connected to the first fixing portion and the second fixing portion to apply a force to the first force-bearing end 213 and the second force-bearing end 223 to bring the two closer to each other.

[0048] The first elastic member 24 can always be in a stretched state, so when the driving component 3 drives the first clamping portion 21 and the second clamping portion 22 to move away from or approach each other, the first elastic member 24 can continuously apply a force to the first force-bearing end 213 and the second force-bearing end 223 to move closer to each other.

[0049] The first elastic member 24 may be a spring or elastic rubber, or any device that can apply a force to the first force-bearing end 213 and the second force-bearing end 223 to bring them closer to each other. This application does not make any specific restrictions on this.

[0050] In the above embodiment, the first elastic member 24 can be connected to the first force-bearing end 213 and the second force-bearing end 223, and drive the first force-bearing end 213 and the second force-bearing end 223 to approach each other, thereby greatly improving the clamping force exerted on the clamping position close to the first force-bearing end 213 and the second force-bearing end 223, and effectively improving the safety and reliability of the use of the clamping assembly 2.

[0051] In some embodiments, the clamping assembly 2 also includes a second elastic member (not shown in the figure), the two ends of which are respectively connected to the first clamping portion 21 and the second clamping portion 22 and are arranged close to the driving assembly 3 relative to the first elastic member 24. The second elastic member is used to apply a force to the first end 211 of the first clamping portion 21 and the second end 221 of the second clamping portion 22 to bring the two closer to each other.

[0052] The second elastic member can always be in a stretched state, so when the driving assembly 3 drives the first clamping portion 21 and the second clamping portion 22 to move away from or closer to each other, the second elastic member can continuously apply a force to move the first end 211 and the second end 221 closer to each other.

[0053] The second elastic member may be a spring or elastic rubber, or any device that can apply a force to the first end 211 and the second end 221 to bring them closer to each other, and this application does not impose any specific limitation on this.

[0054] In the above embodiment, the second elastic member can be connected to the first end 211 and the second end 221, and drive the first end 211 and the second end 221 to approach each other, thereby greatly ensuring the clamping force exerted on the clamping position close to the first end 211 and the second end 221, avoiding the situation where the clamping is not firm, and further improving the safety and reliability of the use of the clamping assembly 2.

[0055] In some embodiments, as Figures 1 to 3 As shown, the clamping assembly 2 further includes a guide member 25 , which is sequentially passed through the first force-bearing end 213 and the second force-bearing end 223 so that the first clamping portion 21 and the second clamping portion 22 can move toward each other along the length direction of the guide member 25 .

[0056] Corresponding through holes can be respectively provided on the first force-bearing end 213 and the second force-bearing end 223, and the guide member 25 is sequentially passed through the through holes at the first force-bearing end 213 and the second force-bearing end 223. The first clamping portion 21 and the second clamping portion 22 can move toward each other along the guide member 25 under the drive of the driving component 3.

[0057] The shape of the guide member 25 can be a long rod, and the cross-section of the long rod-shaped guide member 25 can be circular or square, preferably circular. The contact area between the guide member 25 with a circular cross-section and the first force-bearing end 213 and the second force-bearing end 223 is smaller, thereby minimizing the friction between the guide member 25 and the first force-bearing end 213 and the second force-bearing end 223, thereby effectively improving the driving efficiency of the driving component 3.

[0058] In the above embodiment, the first clamping portion 21 and the second clamping portion 22 can move toward each other along the guide member 25. The guide member 25 can effectively limit the vertical offset of the first clamping portion 21 and the second clamping portion 22, further avoiding the first clamping portion 21 and the second clamping portion 22 from swinging during the movement, thereby greatly improving the firmness and reliability of the clamping of the clamping device.

[0059] In some embodiments, as Figures 1 to 3 As shown, the clamping device further includes a solenoid valve assembly 5 , which is connected to the drive assembly 3 , and is used to control the opening and closing of the drive assembly 3 .

[0060] The driving component 3 can be specifically a cylinder, which can be connected to the cylinder through the solenoid valve component 5, and can control the on and off of the supply of compressed air to the cylinder, and further control the opening and closing of the cylinder.

[0061] In the above embodiment, the opening and closing of the driving assembly 3 can be accurately controlled by the solenoid valve assembly 5, thereby achieving accurate clamping and release of the object to be clamped, effectively improving the practicality and convenience of the clamping jaw device.

[0062] In some embodiments, as Figure 1 and Figure 3 As shown, the clamping device further includes a clamping assembly 6, which is arranged on the mounting plate 1 and is used to clamp a single object to be clamped.

[0063] The clamping assembly 6 can be arranged on the mounting plate 1 and located beside the material clamping assembly 2. The clamping assembly 6 can include a driving member 61 and a clamping member 62 connected to the driving member 61. The clamping member 62 can include a first clamping body and a second clamping body that move toward each other. The driving member 61 can drive the first clamping body and the second clamping body to move away from each other or toward each other. When the first clamping body and the second clamping body move toward each other, they can cooperate to clamp the object to be clamped. When the first clamping body and the second clamping body move away from each other, they can release the object to be clamped to facilitate subsequent operations.

[0064] The driving member 61 may specifically be a cylinder or other device capable of driving the first clamping body and the second clamping body to move toward each other. This application does not specifically limit the type of the driving member 61 .

[0065] In the above embodiment, the user can use the clamping component 2 to clamp multiple objects to be clamped at the same time according to actual usage, or use the clamping component 6 to clamp a single object to be clamped. This can make the clamping device have a wider range of application scenarios and further improve the practicality and flexibility of the clamping device.

[0066] According to another aspect of the present invention, Figure 3As shown, a transport device is also provided, comprising a transport arm 7 and the clamping device as described above, wherein the clamping device is arranged on the movable end of the transport arm 7.

[0067] The carrying arm 7 can drive the clamping device to perform linear motion along the X-axis, Y-axis and Z-axis in the Cartesian coordinate system, and can also drive the clamping device to perform rotational motion around the X-axis, Y-axis and Z-axis in the Cartesian coordinate system, so that the carrying device can adapt to different usage requirements and greatly improve the flexibility and convenience of the carrying device.

[0068] The handling device of the present invention includes the clamping device as described above. Since the clamping device has the beneficial effects as described above, the handling device including the clamping device must also have the beneficial effects as described above.

[0069] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely illustrative and are not intended to limit the scope of the present invention. Various changes and modifications may be made therein by those skilled in the art without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as claimed in the appended claims.

[0070] For ease of description, the term "connected" may be used herein to describe the relationship between one or more elements or features shown in the figures and other elements or features. It should be understood that "connected" may include direct connection or indirect connection via other elements or features, and this document is intended to include all of these situations.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0072] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0073] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, those skilled in the art will appreciate that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device, characterized in that: include: Mounting plate; A material clamping assembly, the material clamping assembly comprising a first clamping portion and a second clamping portion that move toward each other; a driving assembly, the driving assembly being disposed on the mounting plate, the driving assembly being connected to at least one of the first clamping portion and the second clamping portion, the driving assembly being configured to move the first clamping portion and the second clamping portion toward each other; and A limiting component, the limiting component is arranged on the mounting plate; Among them, the first clamping part has a first end close to the driving component, the second clamping part has a second end close to the driving component, and the limiting component is slidingly connected to the first end and the second end respectively to guide the first clamping part and the second clamping part to move toward each other under the drive of the driving component.

2. The clamping device according to claim 1, characterized in that The limiting assembly includes a slide rail and a first slider group slidably connected to the slide rail, one of the first slider group and the slide rail is connected to the mounting plate, and the other of the first slider group and the slide rail is connected to the first end and the second end respectively.

3. The clamping device according to claim 2, characterized in that The clamping assembly further includes a second slider group, the first clamping portion and the second clamping portion are respectively connected to the second slider group, and the driving assembly causes the first clamping portion and the second clamping portion to move toward each other through the second slider group.

4. The clamping device according to claim 3, characterized in that The first slider group and the second slider group are spaced apart along a first length direction, wherein the first length direction is the length direction of the first clamping portion and the second clamping portion.

5. The clamping device according to claim 4, characterized in that: A first groove adapted to the first slider group is formed on the side of the first clamping portion facing the driving component, and a second groove adapted to the second slider group is formed on the side of the second clamping portion facing the driving component. The first slider group is embedded in the first groove, and the second slider group is embedded in the second groove.

6. The clamping device according to claim 1, characterized in that The first clamping portion has a first force-bearing end away from the driving assembly, the second clamping portion has a second force-bearing end away from the driving assembly, and the clamping assembly also includes a first elastic member, the two ends of the first elastic member are respectively connected to the first force-bearing end and the second force-bearing end, and the first elastic member is used to apply a force to the first force-bearing end and the second force-bearing end respectively to make the two move closer to each other.

7. The clamping device according to claim 6, characterized in that The clamping assembly also includes a second elastic member, the two ends of which are respectively connected to the first clamping part and the second clamping part and are arranged close to the driving assembly relative to the first elastic member. The second elastic member is used to apply a force to the first end of the first clamping part and the second end of the second clamping part to bring the two closer to each other.

8. The clamping device according to claim 6, characterized in that: The material clamping assembly further includes a guide member, which is sequentially provided through the first force-bearing end and the second force-bearing end so that the first clamping portion and the second clamping portion can move toward each other along the length direction of the guide member.

9. The clamping device according to claim 1, characterized in that: The clamping device also includes a solenoid valve assembly, which is connected to the driving assembly and is used to control the opening and closing of the driving assembly.

10. The clamping device according to claim 1, characterized in that The clamping device further comprises a clamping assembly, which is arranged on the mounting plate and is used to clamp a single object to be clamped.

11. A transport device, characterized in that: It comprises a transport arm and a clamping device according to any one of claims 1 to 10, wherein the clamping device is arranged on the movable end of the transport arm.