Clamping assembly and carrying device

Abstract

The utility model discloses a clamping assembly and a carrying device, relates to the technical field of clamps, and aims at solving the problems that an existing clamping assembly is too complex in structure and inconvenient to maintain and repair. The clamping assembly comprises a fixing base, a plurality of clamping jaws and a driving assembly. The multiple clamping jaws are distributed in an annular array and rotationally connected to the fixing base. The driving assembly is connected to the multiple clamping jaws and used for driving the multiple clamping jaws to rotate between the clamping state and the releasing state relative to the fixing base. When the multiple clamping jaws are in the clamping state, the multiple clamping jaws clamp an object. When the multiple clamping jaws are in the release state, the multiple clamping jaws loosen the article. The clamping assembly disclosed by the utility model can be used for clamping articles.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamping assembly and a transport device. Background Art

[0002] Clamping components are widely used in the manufacturing industry, primarily for securing, supporting, or clamping objects. For example, in machining, clamping components help position and secure objects to ensure machining accuracy. On assembly lines, clamping components are used to grasp objects and facilitate tasks such as handling and assembly. However, existing clamping components are overly complex, making them difficult to maintain and repair. Utility Model Content

[0003] The purpose of the utility model is to provide a clamping assembly and a transport device, aiming to solve the problem that the clamping assembly has a complex structure and is inconvenient to maintain and repair.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In a first aspect, the present application provides a clamping assembly comprising a fixed base, a plurality of clamping jaws, and a drive assembly. The plurality of clamping jaws are arranged in a circular array and are rotatably connected to the fixed base. The drive assembly is connected to the plurality of clamping jaws and is configured to drive the plurality of clamping jaws to rotate relative to the fixed base between a clamping state and a release state. When the plurality of clamping jaws are in the clamping state, the plurality of clamping jaws clamp an object. When the plurality of clamping jaws are in the release state, the plurality of clamping jaws release the object.

[0006] The multiple jaws provided in the embodiments of the present application can be adjusted to different angles and positions, enabling a variety of clamping methods to meet different work requirements. Furthermore, because the multiple jaws of the clamping assembly are rotatably connected to the fixed base, the structure is simple, reducing the need for additional clamps and making the overall structure of the clamping assembly simple and compact, making it easy to maintain and repair. The drive assembly can provide driving force for the multiple jaws and can provide precise rotational control, allowing the multiple jaws to rotate between clamped and released states, ensuring the accuracy and stability of the clamping process.

[0007] In some embodiments, the portion where the jaws are rotatably connected to the fixed base is a rotating portion, and the jaws further include a jaw body and a connecting portion located on either side of the rotating portion. A drive assembly is connected to the connecting portions of the plurality of jaws, and the drive assembly is configured to drive the connecting portion to move axially along the annular array, thereby driving the plurality of jaws to rotate relative to the fixed base between a clamping state and a released state.

[0008] In some embodiments, the jaw body extends axially along the annular array, and the connecting portion extends radially along the annular array. The position where the connecting portion connects to the driving assembly is a first position, and the first position is spaced apart from the rotating portion along the extending direction of the connecting portion.

[0009] In some embodiments, a surface of the clamping jaw body facing the central axis of the annular array includes a limiting surface. When the plurality of clamping jaws are in a clamping state, the limiting surface is parallel to the central axis.

[0010] In some embodiments, the clamp body includes an anti-slip portion, which is disposed on the limiting surface. When the plurality of clamps are in a clamping state, the anti-slip portion contacts the object to clamp the object.

[0011] In some embodiments, the surface of the jaw body facing the central axis of the annular array further includes a concave area.

[0012] In some embodiments, the drive assembly includes a linear drive member and a plurality of movable rods. The linear drive member includes a mover and a stator, the stator being connected to a fixed seat. The mover moves axially relative to the stator along the annular array. One end of the plurality of movable rods is movably connected to the connecting portion of the plurality of clamping jaws, and the other end is connected to the mover. The linear drive member is configured to drive the plurality of movable rods to move axially along the annular array, thereby driving the connecting portion of the plurality of clamping jaws to move axially along the annular array.

[0013] In some embodiments, the fixing seat is provided with a plurality of limiting holes, and the plurality of movable rods can be slidably inserted into the plurality of limiting holes respectively.

[0014] In some embodiments, the linear drive member is a cylinder assembly, which includes a cylinder body and a piston, wherein the cylinder body forms a stator and the piston forms a mover.

[0015] In some embodiments, the fixing base includes a base body and a plurality of connecting protrusions. The stator is connected to the base body. The plurality of connecting protrusions are disposed on a side of the base body facing away from the stator. The rotating portions of the plurality of clamping jaws are respectively rotatably connected to the plurality of connecting protrusions.

[0016] In some embodiments, the number of the clamping jaws is greater than or equal to four, and the number of the clamping jaws is an even number.

[0017] In a second aspect, the present application provides a transport device comprising a main body and a clamping assembly as described in any one of the above items, wherein the clamping assembly is arranged on the main body.

[0018] The technical effects brought about by any implementation method of the above-mentioned second aspect can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A schematic diagram of the structure of the clamping assembly provided for related technology;

[0021] Figure 2 A schematic structural diagram of a transport device provided in an embodiment of the present application;

[0022] Figure 3 for Figure 2 A schematic structural diagram of a clamping assembly of a handling device is shown;

[0023] Figure 4 for Figure 3 A schematic structural diagram showing multiple clamping jaws of a clamping assembly in a clamping state;

[0024] Figure 5 for Figure 3 A schematic structural diagram showing multiple clamping jaws of the clamping assembly in a released state;

[0025] Figure 6 for Figure 3 A schematic structural diagram of multiple clamping jaws of a clamping assembly is shown;

[0026] Figure 7 A schematic diagram of the structure of multiple clamps provided in an embodiment of the present application;

[0027] Figure 8 A schematic structural diagram of the concave areas of multiple clamping jaws provided in an embodiment of the present application;

[0028] Figure 9 for Figure 3 A schematic cross-sectional view of the clamping assembly is shown;

[0029] Figure 10 for Figure 3 Schematic diagram of the exploded structure of the clamping assembly is shown.

[0030] Reference numerals:

[0031] 10. First motor; 20. Second motor; 30. Screw; 40. Mechanical claw; 50. Mounting base; 60. Rotating flange plate; 70. Connecting frame; 80. Linking plate; 90. Connecting rod;

[0032] 100. Carrying device; 110. Main body; 120. Clamping assembly; 130. Fixed seat; 131. Limiting hole; 132. Seat body; 133. Connecting protrusion; 140. Clamping jaw; 141. Rotating part; 142. Clamping jaw body; 1421. Limiting surface; 1422. Anti-slip part; 1423. Concave area; 143. Connecting part; 1431. First position; 150. Driving assembly; 151. Linear driving member; 1511. Mover; 1512. Stator; 1513. Cylinder; 1514. Piston; 1515. First air hole; 1516 Second air hole; 152. Moving rod; 1521. Groove; 153. Fixed block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or relative positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, the above-mentioned directions may be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are met.

[0035] 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 the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "communicated" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be directly connected, indirectly connected through an intermediary, or internally connected between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0037] In the embodiments of the present invention, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, article, or device comprising the element.

[0038] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0039] Clamping components are widely used in the manufacturing industry, primarily for securing, supporting, or clamping objects. For example, in machining, clamping components help position and secure objects to ensure machining accuracy. On assembly lines, clamping components are used to grasp objects and facilitate tasks such as handling and assembly.

[0040] In the related art, see Figure 1 , Figure 1 This is a schematic diagram of the structure of a clamping assembly provided for related technology. The clamping assembly includes a first motor 1 and a second motor 2. The first motor 1 is provided with a fixed flange plate for mounting, which facilitates both fixing the first motor 1 and disassembly. The axial extension end of the second motor 2 is fixedly connected to a screw 3, and a mounting seat 5 is provided on the outside of the screw 3. The mounting seat 5 is fixedly connected to the rotating flange plate 6 via a connecting frame 7. A mechanical claw 4 is hinged on the side of the mounting seat 5 away from the second motor 2. A linkage plate 8 threadedly connected to the surface of the screw 3 is connected to the mechanical claw 4 through a connecting rod 9. A cushioning rubber pad is provided on the clamping surface of the mechanical claw 4.

[0041] However, the structure of the clamping assembly is too complicated and inconvenient to maintain and repair.

[0042] Based on this, see Figure 2 , Figure 2 This is a schematic diagram of the structure of a transport device 100 provided in an embodiment of the present application. The present application provides a transport device 100, which includes a body 110 and a clamping assembly 120. The clamping assembly 120 is disposed on the body 110. In this way, objects can be clamped or released by the clamping assembly 120, and the body 110 can drive the clamping assembly 120 to move, thereby achieving tasks such as transport and assembly.

[0043] For details, see Figure 3 , Figure 3 for Figure 2 The schematic diagram of the structure of the clamping assembly 120 of the handling device 100 is shown. The clamping assembly 120 may include a fixed base 130, a plurality of clamping jaws 140, and a drive assembly 150. The plurality of clamping jaws 140 are arranged in a circular array and are rotatably connected to the fixed base 130. This allows the plurality of clamping jaws 140 to be adjusted at different angles and positions, enabling a variety of clamping methods to meet different work requirements. Furthermore, since the plurality of clamping jaws 140 of the clamping assembly 120 are rotatably connected to the fixed base 130, the need for additional clamps is reduced, making the structure of the clamping assembly 120 relatively simple, and easier to maintain and repair.

[0044] The driving assembly 150 can be connected to the plurality of clamping jaws 140, and the driving assembly 150 is used to drive the plurality of clamping jaws 140 to rotate between a clamping state and a release state relative to the fixing base 130. Figure 4 , Figure 4 for Figure 3 The structure diagram of the clamping assembly 120 is shown as a plurality of clamping claws 140 in a clamping state. When the clamping claws 140 are in the clamping state, the clamping claws 140 clamp an object. Figure 5 , Figure 5 for Figure 3 The structure diagram of the clamping assembly 120 is shown in which the multiple clamping jaws 140 are in a released state. When the clamping jaws 140 are in the released state, the clamping jaws 140 release the object.

[0045] In this way, the driving assembly 150 can provide driving force for the multiple clamping jaws 140 and can provide precise rotation control, so that the clamping jaws 140 can clamp at a specific angle and speed, ensuring the accuracy and stability of the clamping process.

[0046] It should be noted that the present application does not limit the number of the clamping jaws 140 , and the number of the clamping jaws 140 can be an odd number or an even number.

[0047] In some embodiments, the number of clamping jaws 140 may be four. This improves clamping stability and reduces the risk of items slipping or falling during the clamping process. In other embodiments, the number of clamping jaws 140 may be greater than four, and the number of clamping jaws 140 may be an even number. For example, the number of clamping jaws 140 may be six, eight, etc. This is not a limitation in the present application, and may be set based on actual needs.

[0048] It should be noted that, this application is described by taking four clamping jaws 140 as an example, which does not represent a limitation on the number of clamping jaws 140 in this application.

[0049] In some embodiments, see Figure 3and combined Figure 6 , Figure 6 for Figure 3 The structure diagram of the clamping assembly 120 is shown, where the clamping jaws 140 are rotatably connected to the fixing base 130 as a rotating portion 141. The clamping jaws 140 further include a clamping jaw body 142 and a connecting portion 143 located on both sides of the rotating portion 141. The connecting portion 143 may include a connecting hole.

[0050] The drive assembly 150 is connected to the connecting portions 143 of the multiple clamping jaws 140. The drive assembly 150 is used to drive the connecting portions 143 to move axially along the annular array, thereby driving the multiple clamping jaws 140 to rotate between a clamping state and a released state relative to the fixed base 130. In this way, the drive assembly 150 drives the connecting portions 143 to move axially along the annular array, thereby enabling the multiple clamping jaws 140 to quickly switch between the clamping state and the released state, resulting in a faster response speed.

[0051] It should be noted that the clamp body 142 and the connecting portion 143 may be located in a straight line with the rotating portion 141, and the clamp body 142 and the connecting portion 143 may be located on opposite sides of the rotating portion 141. The clamp body 142 and the connecting portion 143 may not be located in a straight line with the rotating portion 141, for example, Figure 6 The clamping jaw body 142 is located on the upper side of the rotating portion 141 , and the connecting portion 143 is located on the right side of the rotating portion 141 .

[0052] In some embodiments, see Figure 3 and combined Figure 6 The jaw body 142 can extend axially of the annular array, and the connecting portion 143 can extend radially of the annular array. The position where the connecting portion 143 connects to the driving assembly 150 is a first position 1431, and the first position 1431 is spaced apart from the rotating portion 141 along the extending direction of the connecting portion 143.

[0053] This creates a certain distance between first position 1431 and rotating portion 141. Drive assembly 150 drives first position 1431 to move axially along the annular array, thereby rotating rotating portion 141 and switching jaws 140 between a clamped and released state. Based on the principle of leverage, establishing an appropriate distance between first position 1431 and rotating portion 141 can reduce the force applied by drive assembly 150.

[0054] In some embodiments, see Figure 6The surface of the clamping jaw body 142 facing the central axis of the annular array may include a limiting surface 1421. When the multiple clamping jaws 140 are in the clamping state, the limiting surface 1421 is parallel to the central axis. This allows for a larger contact area with the object and improves clamping stability.

[0055] It should be noted that this application does not limit the shape, size, and angle of the limiting surface 1421, and it is set according to actual needs.

[0056] See also Figure 7 , Figure 7 This is a schematic structural diagram of multiple clamping jaws 140 provided in an embodiment of the present application. Figure 7 (a) is a shape structure of a clamping claw 140, Figure 7 (b) is another shape structure of the clamping jaw 140, and different clamping jaws 140 have different shapes of the limiting surface 1421. It can be understood that, Figure 7 Two different shapes of the limiting surface 1421 are shown as examples, which does not represent a limitation to the present application.

[0057] In some embodiments, see Figure 7 The clamp body 142 may include an anti-slip portion 1422 disposed on the limiting surface 1421. The anti-slip portion 1422 may be concave or convex and integrally formed with the limiting surface 1421. The anti-slip portion 1422 may also be a plastic anti-slip sleeve, etc., connected to the limiting surface 1421. This application does not impose any restrictions on this.

[0058] When the plurality of clamping claws 140 are in the clamping state, the anti-slip portion 1422 contacts the object to clamp the object. In this way, the friction between the limiting surface 1421 and the object can be increased to prevent the object from falling during the clamping process.

[0059] In some embodiments, see Figure 5 and combined Figure 8 , Figure 8 This is a schematic diagram of the structure of the concave regions 1423 of the multiple clamping jaws 140 provided in an embodiment of the present application. The surface of the clamping jaw body 142 facing the central axis A of the annular array also includes the concave region 1423. This allows the clamping of irregularly shaped objects, such as disc-shaped objects or objects with annular protrusions, to more securely grip the irregularly shaped objects.

[0060] It should be noted that the concave area 1423 may be a concave spherical surface, and the size of the concave area 1423 may be set according to actual conditions. Figure 8(a) and (b) in the figure respectively show two different structures of the concave region 1423. The concave region 1423 can also be other irregular concave surfaces, which is not limited in this application.

[0061] In some embodiments, see Figure 9 , Figure 9 for Figure 3 The cross-sectional structural diagram of the clamping assembly 120 is shown, and the driving assembly 150 may include a linear driving member 151 and a plurality of moving rods 152. The linear driving member 151 may be a driving motor or a cylinder assembly.

[0062] Specifically, the linear drive member 151 may include a mover 1511 and a stator 1512, wherein the stator 1512 is connected to the fixed base 130. The mover 1511 moves axially along the annular array relative to the stator 1512. One end of the plurality of movable rods 152 is movably connected to the connecting portions 143 of the plurality of clamping jaws 140, and the other end is connected to the mover 1511. The linear drive member 151 is used to drive the plurality of movable rods 152 to move axially along the annular array, thereby driving the connecting portions 143 of the plurality of clamping jaws 140 to move axially along the annular array.

[0063] In this way, the linear drive member 151 can efficiently transmit power to the multiple movable rods 152 through the relative movement of the mover 1511 and the stator 1512, thereby switching the multiple clamping jaws 140 between the clamping state and the release state. In addition, this structural simplicity reduces complex mechanical components and improves the reliability of the drive assembly 150.

[0064] In some embodiments, see Figure 9 The linear driving member 151 can be a cylinder assembly, which can include a cylinder body 1513 and a piston 1514 . The cylinder body 1513 forms a stator 1512 , and the piston 1514 forms a mover 1511 .

[0065] The driving force provided by the cylinder assembly is relatively gentle. When driving the multiple clamping jaws 140 to clamp an object, it is not easy to cause local stress concentration on the object and cause deformation, thereby damaging the object.

[0066] A first air hole 1515 and a second air hole 1516 may also be provided on both sides of the piston 1514 in the cylinder 1513. When air is admitted through the first air hole 1515, the air enters the cylinder 1513, forcing the piston 1514 to move away from the multiple clamping jaws 140, thereby driving the multiple movable rods 152 to move away from the multiple clamping jaws 140. At this point, the multiple clamping jaws 140 are able to clamp an object, entering a clamping state. When air is admitted through the second air hole 1516, the air enters the cylinder 1513, forcing the piston 1514 to move toward the multiple clamping jaws 140, thereby driving the multiple movable rods 152 to move toward the multiple clamping jaws 140. At this point, the multiple clamping jaws 140 are able to release an object, entering a released state.

[0067] In some embodiments, see Figure 10 , Figure 10 for Figure 3 In the exploded view of the clamping assembly 120, the fixing base 130 can be provided with a plurality of retaining holes 131. A plurality of movable rods 152 can slide through the plurality of retaining holes 131. The retaining holes 131 provide a clear sliding path for the movable rods 152, ensuring precise positioning of the clamping jaws 140 during movement and avoiding unnecessary displacement. Furthermore, the design of the retaining holes 131 effectively prevents lateral displacement of the movable rods 152 during operation, thereby improving the stability of the clamping assembly 120 and reducing the risk of items slipping or falling.

[0068] In some embodiments, see Figure 10 The fixing base 130 may include a base body 132 and a plurality of connecting protrusions 133. The stator 1512 is connected to the base body 132. The plurality of connecting protrusions 133 are disposed on a side of the base body 132 facing away from the stator 1512. The rotating portions 141 of the plurality of clamping jaws 140 are respectively rotatably connected to the plurality of connecting protrusions 133.

[0069] In this way, the rotating portions 141 of the multiple clamping jaws 140 are rotatably connected to the multiple connecting protrusions 133, allowing the multiple clamping jaws 140 to rotate freely within a wide range, improving the flexibility and adaptability of the clamping. In addition, the provision of the connecting protrusions 133 can make the installation and removal of the multiple clamping jaws 140 easier, reducing the complex connection mechanism and facilitating maintenance and replacement.

[0070] In some embodiments, the drive assembly 150 may further include a fixed block 153, through which the piston 1514 is connected to the movable rod 152. The provision of the fixed block 153 increases the connection area of the movable rod 152, thereby making the connection between the movable rod 152 and the piston 1514 more stable. Furthermore, the provision of the fixed block 153 ensures that the movement of the multiple movable rods 152 is more consistent, allowing multiple jaws 140 to simultaneously grip an object, thereby improving the stability of the clamping assembly 120.

[0071] In some embodiments, a groove 1521 is further provided on one side of the movable rod away from the fixed block 153, and the concave connecting portion 143 is connected to the groove 1521. In this way, the groove 1521 can limit the connecting portion 143, and the connecting portion 143 can be connected more stably.

[0072] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0073] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A clamping assembly, characterized in that: include: Fixed seat (130); A plurality of clamping jaws (140), the plurality of clamping jaws (140) are distributed in a ring array and are rotatably connected to the fixing seat (130); a driving assembly (150), the driving assembly (150) being connected to the plurality of clamping jaws (140), the driving assembly (150) being used to drive the plurality of clamping jaws (140) to rotate relative to the fixing seat (130) between a clamping state and a releasing state; Wherein, when the multiple clamping jaws (140) are in the clamping state, the multiple clamping jaws (140) clamp the article; when the multiple clamping jaws (140) are in the releasing state, the multiple clamping jaws (140) release the article.

2. The clamping assembly according to claim 1, wherein: The portion of the clamping jaw (140) that is rotatably connected to the fixing seat (130) is a rotating portion (141), and the clamping jaw (140) further includes a clamping jaw body (142) and a connecting portion (143) located on both sides of the rotating portion (141); The driving assembly (150) is connected to the connecting portion (143) of the plurality of clamping jaws (140), and the driving assembly (150) is used to drive the connecting portion (143) to move axially along the annular array, so as to drive the plurality of clamping jaws (140) to rotate relative to the fixing seat (130) between the clamping state and the releasing state.

3. The clamping assembly according to claim 2, wherein: The clamping jaw body (142) extends along the axial direction of the annular array, and the connecting portion (143) extends along the radial direction of the annular array; The position where the connecting portion (143) is connected to the driving assembly (150) is a first position (1431), and the first position (1431) and the rotating portion (141) are arranged at intervals along the extending direction of the connecting portion (143).

4. The clamping assembly according to claim 3, wherein: The surface of the clamp body (142) facing the central axis of the annular array includes a limiting surface (1421); When the plurality of clamping jaws (140) are in the clamping state, the limiting surface (1421) is parallel to the central axis.

5. The clamping assembly according to claim 4, characterized in that The clamping jaw body (142) comprises: An anti-slip portion (1422) is provided on the limiting surface (1421); when the plurality of clamping claws (140) are in the clamping state, the anti-slip portion (1422) contacts the object.

6. The clamping assembly according to claim 4, wherein: The surface of the jaw body (142) facing the central axis of the annular array also includes a concave area (1423).

7. The clamping assembly according to claim 3, wherein: The drive assembly (150) comprises: a linear drive member (151), the linear drive member (151) comprising a mover (1511) and a stator (1512), the stator (1512) being connected to the fixing seat (130); the mover (1511) moving relative to the stator (1512) along the axial direction of the annular array; a plurality of movable rods (152), one end of each of the plurality of movable rods (152) being movably connected to the connecting portions (143) of the plurality of clamping jaws (140), and the other end of each of the plurality of movable rods (152) being connected to the movable element (1511); The linear drive member (151) is used to drive the plurality of moving rods (152) to move axially along the annular array, thereby driving the connecting portions (143) of the plurality of clamping jaws (140) to move axially along the annular array.

8. The clamping assembly according to claim 7, wherein: The fixing seat (130) is provided with a plurality of limiting holes (131); the plurality of moving rods (152) are respectively slidably arranged in the plurality of limiting holes (131).

9. The clamping assembly according to claim 7, wherein: The linear drive member (151) is a cylinder assembly, and the cylinder assembly includes a cylinder body (1513) and a piston (1514); The cylinder (1513) forms the stator (1512), and the piston (1514) forms the mover (1511).

10. The clamping assembly according to claim 7, wherein: The fixing seat (130) comprises: A seat body (132), wherein the stator (1512) is connected to the seat body (132); A plurality of connecting protrusions (133) are provided on a side of the seat (132) away from the stator (1512); the rotating parts (141) of the plurality of clamping jaws (140) are respectively rotatably connected to the plurality of connecting protrusions (133).

11. The clamping assembly according to claim 1, wherein: The number of the clamping jaws (140) is greater than or equal to four, and the number of the clamping jaws (140) is an even number.

12. A transport device, characterized in that: include: Ontology(110); The clamping assembly (120) according to any one of claims 1 to 11, wherein the clamping assembly (120) is arranged on the main body (110).

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