Clamping assembly and material taking device with same

Abstract

The utility model provides a clamping assembly and a material taking device with the clamping assembly, the clamping assembly comprises a clamping structure, the clamping structure comprises a first clamping arm and a second clamping arm, at least one of the first clamping arm and the second clamping arm is movably arranged, and the first clamping arm is connected with the second clamping arm; the clamping structure is in a clamping state of clamping the to-be-clamped piece or a loosening state of avoiding the to-be-clamped piece; when the clamping structure is in a clamping state, at least part of the first clamping arm and at least part of the second clamping arm are arranged at intervals to define a clamping space; at least part of the positioning structure is arranged in the clamping space, and at least part of the positioning structure is used for abutting against the to-be-clamped piece; and the main body part is arranged in a liftable mode, and the clamping structure and the positioning structure are both arranged on the main body part. By means of the technical scheme, the technical problem that in the prior art, when materials are clamped, the positions of the materials are not convenient to position can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material taking devices, in particular to a clamping assembly and a material taking device having the same. Background Art

[0002] At present, in the assembly and production process of injection needle products, in order to reduce manual operations and improve production efficiency, the injection needle caps are generally removed by mechanical clamps.

[0003] However, when clamping the injection needle cap, the existing mechanical clamp cannot ensure that the clamped material always remains vertical, and the material is often clamped crookedly, making it difficult to achieve accurate positioning of the material, resulting in the need for manual adjustment during subsequent assembly, which seriously affects production efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a clamping assembly and a material taking device having the same, so as to solve the technical problem in the prior art that it is inconvenient to locate the position of the material when clamping the material.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a clamping assembly is provided, including: a clamping structure, the clamping structure includes a first clamping arm and a second clamping arm, at least one of the first clamping arm and the second clamping arm is movably arranged so that the clamping structure is in a clamping state clamped on a piece to be clamped or in a loosened state avoiding the piece to be clamped; when the clamping structure is in the clamping state, at least parts of the first clamping arm and the second clamping arm are spaced apart to enclose a clamping space; a positioning structure, at least part of the positioning structure is arranged in the clamping space, and at least part of the positioning structure is used to abut against the piece to be clamped; a main body, which can be raised and lowered, and the clamping structure and the positioning structure are both arranged on the main body. In this way, the lifting and lowering activities of the main body can drive the clamping structure and the positioning structure arranged on the main body to move together, so that the positioning structure can move to a positioning position abutting against the part to be clamped. When the positioning structure completes the abutting positioning of the part to be clamped, the clamping structure is in a clamping state, that is, the part to be clamped can be stably clamped in the clamping space. This effectively improves the clamping and positioning stability of the part to be clamped, avoids the situation where the part to be clamped is skewed during the clamping process and is inconvenient for stable clamping of the part to be clamped, and effectively ensures that the part to be clamped relative to the axial position of the clamping structure does not skew.

[0006] Furthermore, the positioning structure includes: a positioning body, which is arranged in the clamping space; a connecting piece, which is connected to the positioning body, the connecting piece extends out of the clamping space, and the connecting piece is arranged on the side of the clamping structure. With such a structural arrangement, it is convenient to optimize the structural layout of the positioning structure, facilitate the installation of the positioning structure, avoid mutual interference between the positioning body and other structures, and also facilitate the abutment and positioning of the clamping piece.

[0007] Furthermore, the connecting piece is arranged on the main body, and the positioning body is arranged to extend out of the main body, so as to optimize the installation of the clamping structure and the connecting piece, form the overall structure of the clamping assembly, and optimize the overall structural layout of the clamping assembly.

[0008] Furthermore, a first clamping structure is provided on the main body, and a second clamping structure matching the first clamping structure is provided on the connecting piece, and the second clamping structure is clamped and matched with the first clamping structure. In this way, the main body and the connecting piece are more easily assembled.

[0009] Furthermore, the clamping structure is installed at the end of the main body, the periphery of the end of the main body protrudes from the clamping structure, and the connecting piece is arranged on the side of the main body. In this way, it is convenient to further optimize the structural layout of the clamping structure, the main body and the connecting piece, and avoid interference between the clamping movement of the connecting piece and the clamping structure.

[0010] Further, at least one of the first clamping arm and the second clamping arm is movably arranged in a direction close to or away from the other of the first clamping arm and the second clamping arm; the end of the first clamping arm and the end of the second clamping arm are both adapted to the periphery of the part to be clamped, and at least part of the positioning structure is arranged relative to the end of the first clamping arm and / or the end of the second clamping arm. With such a structural arrangement, it is convenient to optimize the structural layout of the first clamping arm, the second clamping arm and the positioning structure, and it is convenient to use the positioning structure to position the part to be clamped before clamping it.

[0011] Furthermore, the positioning structure is installed on the side of the main body, and the clamping structure is installed on the end of the main body; wherein the first clamping arm is provided with a first guide portion, the second clamping arm is provided with a second guide portion, and the end of the main body is provided with a third guide portion, the third guide portion extends along the arrangement direction of the first clamping arm and the second clamping arm, and the first guide portion and the second guide portion are both guided and adapted to the third guide portion. In this way, it is convenient to guide the movement of the first clamping arm and the second clamping arm, and improve the movement stability of the first clamping arm and the second clamping arm.

[0012] Furthermore, the first clamping arm includes a first main arm and a first clamping portion connected to each other, the second clamping arm includes a second main arm and a second clamping portion connected to each other, the second main arm is opposite to the first main arm and is arranged at a distance, the second clamping portion is arranged opposite to the first clamping portion, the first main arm, the second main arm, the first clamping portion and the second clamping portion enclose a clamping space, the first clamping portion forms the end of the first clamping arm, and the second clamping portion forms the end of the second clamping arm. This makes it easy to optimize the structure of the first clamping arm and the second clamping arm, and can be clamped by the first clamping portion and the second clamping portion, while being stably positioned by the positioning body in the clamping space.

[0013] Furthermore, a first positioning step and a second positioning step are arranged at intervals on the part to be clamped, the first positioning step is located at the end of the part to be clamped, a first positioning groove is arranged on the first clamping part, and a second positioning groove is arranged on the second clamping part, and the first positioning groove and the second positioning groove are both adapted to the part of the part to be clamped located between the first positioning step and the second positioning step; wherein at least a part of the first clamping part is arranged relative to the first positioning step so that the first clamping part and the first positioning step are abutted and limited; and / or at least a part of the second clamping part is arranged relative to the first positioning step so that the second clamping part and the first positioning step are abutted and limited. In this way, it is convenient to improve the clamping stability of the part to be clamped and avoid the part to be clamped from falling off the first clamping part.

[0014] According to another aspect of the utility model, a material taking device is provided, comprising: the clamping assembly provided above; and a driving mechanism, the driving mechanism is drivingly connected to the clamping assembly, and the driving mechanism drives the clamping assembly to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 The figure shows the overall structure schematic diagram of the clamping assembly provided according to the first embodiment of the utility model;

[0017] Figure 2 The figure shows a front view of a clamping assembly provided according to the first embodiment of the present utility model;

[0018] Figure 3 A schematic structural diagram of a clamping assembly provided in accordance with the first embodiment of the present utility model from another angle is shown;

[0019] Figure 4 The overall structural diagram of the material taking device provided in the second embodiment of the utility model is shown;

[0020] Figure 5 The figure shows a front view of the driving mechanism, the clamping assembly and the material receiving mechanism provided according to the second embodiment of the utility model;

[0021] Figure 6 The figure shows a structural schematic diagram of a material receiving mechanism provided according to the second embodiment of the utility model.

[0022] The above drawings include the following reference numerals:

[0023] 10. Clamping assembly; 11. Clamping structure; 111. Clamping space; 112. First clamping arm; 1121. First main arm; 1122. First clamping portion; 11221. First positioning groove; 113. Second clamping arm; 1131. Second main arm; 1132. Second clamping portion; 11321. Second positioning groove; 12. Positioning structure; 121. Positioning body; 122. Connector; 13. Main body; 131. First clamping structure; 132. Third guide portion;

[0024] 20. Part to be clamped; 21. First positioning step; 22. Second positioning step;

[0025] 30. Driving mechanism;

[0026] 40. Material receiving mechanism. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] like Figures 1 to 3 As shown, the first embodiment of the utility model provides a clamping assembly 10, which includes a clamping structure 11, a positioning structure 12 and a main body 13. The clamping structure 11 includes a first clamping arm 112 and a second clamping arm 113, and at least one of the first clamping arm 112 and the second clamping arm 113 is movably arranged so that the clamping structure 11 is in a clamping state clamped on the part to be clamped 20 or in a loosening state avoiding the part to be clamped 20; when the clamping structure 11 is in a clamping state, at least part of the first clamping arm 112 and the second clamping arm 113 are spaced apart to enclose a clamping space 111. At least part of the positioning structure 12 is arranged in the clamping space 111, and at least part of the positioning structure 12 is used to abut against the part to be clamped 20. The main body 13 can be raised and lowered, and the clamping structure 11 and the positioning structure 12 are both arranged on the main body 13.

[0029] By adopting the clamping assembly provided in this embodiment, the clamping structure 11 and the positioning structure 12 provided on the main body 13 can be driven to move together through the lifting and lowering movement of the main body 13, so that the positioning structure 12 can move to the positioning position abutting against the part to be clamped 20. When the positioning structure 12 completes the abutting positioning of the part to be clamped 20, the clamping structure 11 is in a clamping state, that is, the part to be clamped 20 can be stably clamped in the clamping space 111, which effectively improves the clamping and positioning stability of the part to be clamped 20, avoids the situation that the part to be clamped 20 is skewed and inconvenient to stably clamp the part to be clamped 20 during the clamping process of the part to be clamped 20, and effectively ensures that the part to be clamped 20 relative to the axis position of the clamping structure 11 does not skew. Therefore, the clamping assembly provided in this embodiment can solve the technical problem in the prior art that it is not convenient to locate the position of the material when clamping the material.

[0030] Specifically, the part to be clamped 20 in this embodiment may be a protective cap for an injection needle or other products of the injection needle, which can improve the production efficiency of the injection needle.

[0031] Specifically, the positioning structure 12 includes a positioning body 121 and a connecting member 122. The positioning body 121 is arranged in the clamping space 111. The connecting member 122 is connected to the positioning body 121, and the connecting member 122 is arranged to extend out of the clamping space 111, and the connecting member 122 is arranged on the side of the clamping structure 11. With such a structural arrangement, it is convenient to optimize the structural layout of the positioning structure 12, to facilitate the installation of the positioning structure 12, to avoid the mutual interference between the positioning body 121 and other structures, and to facilitate the abutment and positioning of the clamped member 20. Specifically, by abutting the end face of the positioning body 121 with the end face of the member 20 to be clamped, the accurate positioning of the member 20 to be clamped can be improved, and the end face of the positioning body 121 can be a horizontal plane. In this way, after the end face of the positioning body 121 abuts with the end face of the member 20 to be clamped, the axis of the member 20 to be clamped will be kept in the vertical direction as much as possible, so as to avoid the member 20 to be clamped being crooked.

[0032] Specifically, the connecting member 122 is arranged on the main body 13, and the positioning body 121 is arranged to extend from the main body 13. With such a structural arrangement, it is convenient to optimize the installation of the clamping structure 11 and the connecting member 122, to form the overall structure of the clamping assembly 10, to optimize the overall structural layout of the clamping assembly 10, to improve the compactness of the overall structural layout of the clamping assembly 10, and to realize the clamping and positioning functions of the clamping assembly 10.

[0033] In this embodiment, the main body 13 is provided with a first clamping structure 131, and the connecting member 122 is provided with a second clamping structure adapted to the first clamping structure 131, and the second clamping structure is clamped and matched with the first clamping structure 131. In this way, it is more convenient to assemble the main body 13 and the connecting member 122, and it is also convenient to confirm the assembly position of the connecting member 122. Specifically, the first clamping structure 131 is a bar-shaped clamping groove, and the second clamping structure is a clamping protrusion.

[0034] Specifically, the connecting member 122 may be further locked and fixed on the main body 13 by means of a locking structure such as screws.

[0035] Specifically, the clamping structure 11 is installed at the end of the main body 13, the periphery of the end of the main body 13 protrudes from the clamping structure 11, and the connecting member 122 is arranged on the side of the main body 13. With such a structural arrangement, it is convenient to further optimize the structural layout of the clamping structure 11, the main body 13 and the connecting member 122, and avoid interference between the clamping movement of the connecting member 122 and the clamping structure 11.

[0036] Specifically, at least one of the first clamping arm 112 and the second clamping arm 113 is movably arranged in a direction close to or away from the other of the first clamping arm 112 and the second clamping arm 113; the end of the first clamping arm 112 and the end of the second clamping arm 113 are both adapted to the periphery of the to-be-clamped part 20, and at least a portion of the positioning structure 12 is arranged opposite to the end of the first clamping arm 112 and / or the end of the second clamping arm 113. With such a structural arrangement, it is convenient to optimize the structural layout of the first clamping arm 112, the second clamping arm 113 and the positioning structure 12, and it is convenient to use the positioning structure 12 to position the to-be-clamped part 20 before clamping the to-be-clamped part 20. Specifically, the first clamping arm 112 and the second clamping arm 113 are both spaced apart from at least a portion of the positioning structure 12 to avoid interference between the first clamping arm 112 and the second clamping arm 113 and at least a portion of the positioning structure 12.

[0037] In this embodiment, the positioning structure 12 is installed on the side of the main body 13, and the clamping structure 11 is installed at the end of the main body 13; wherein, the first clamping arm 112 is provided with a first guide portion, the second clamping arm 113 is provided with a second guide portion, and the end of the main body 13 is provided with a third guide portion 132, the third guide portion 132 extends along the arrangement direction of the first clamping arm 112 and the second clamping arm 113, and the first guide portion and the second guide portion are both guided and adapted to the third guide portion 132. With such a structural arrangement, it is convenient to guide the movement of the first clamping arm 112 and the second clamping arm 113, improve the movement stability of the first clamping arm 112 and the second clamping arm 113, and thus facilitate the stable clamping of the clamped member 20 by the first clamping arm 112 and the second clamping arm 113.

[0038] Specifically, the first guide portion and the second guide portion may both be guide protrusions or guide grooves, and the third guide portion may be a guide groove or a guide protrusion, and the guide groove is matched with the guide protrusion.

[0039] Specifically, the first clamping arm 112 includes a first main arm 1121 and a first clamping portion 1122 connected to each other, the second clamping arm 113 includes a second main arm 1131 and a second clamping portion 1132 connected to each other, the second main arm 1131 is opposite to the first main arm 1121 and is arranged at a distance, the second clamping portion 1132 is arranged opposite to the first clamping portion 1122, the first main arm 1121, the second main arm 1131, the first clamping portion 1122 and the second clamping portion 1132 surround the clamping space 111, the first clamping portion 1122 forms the end of the first clamping arm 112, and the second clamping portion 1132 forms the end of the second clamping arm 113. With such a structural arrangement, it is convenient to optimize the structure of the first clamping arm 112 and the second clamping arm 113, and can be clamped by the first clamping portion 1122 and the second clamping portion 1132, and stably positioned by the positioning body 121 in the clamping space 111.

[0040] In this embodiment, the first positioning step 21 and the second positioning step 22 are arranged at intervals on the part to be clamped 20, the first positioning step 21 is located at the end of the part to be clamped 20, the first clamping portion 1122 is provided with a first positioning groove 11221, and the second clamping portion 1132 is provided with a second positioning groove 11321, and the first positioning groove 11221 and the second positioning groove 11321 are both adapted to the part of the part to be clamped 20 located between the first positioning step 21 and the second positioning step 22. Among them, at least a part of the first clamping portion 1122 is arranged opposite to the first positioning step 21, so that the first clamping portion 1122 and the first positioning step 21 are abutted and limited. In this way, it is convenient to further optimize the structure of the first clamping portion 1122 and the second clamping portion 1132, so as to improve the clamping stability of the part to be clamped 20 and avoid the part to be clamped 20 from falling off the first clamping portion 1122.

[0041] Specifically, the first positioning step 21 and the second positioning step 22 are arranged at intervals on the part to be clamped 20, the first positioning step 21 is located at the end of the part to be clamped 20, the first clamping portion 1122 is provided with a first positioning groove 11221, and the second clamping portion 1132 is provided with a second positioning groove 11321, and the first positioning groove 11221 and the second positioning groove 11321 are both adapted to the portion between the first positioning step 21 and the second positioning step 22. Among them, at least a portion of the second clamping portion 1132 is arranged opposite to the first positioning step 21, so that the second clamping portion 1132 and the first positioning step 21 are abutted and limited. In this way, it is convenient to further optimize the structure of the first clamping portion 1122 and the second clamping portion 1132, so as to improve the clamping stability of the part to be clamped 20 and avoid the part to be clamped 20 from falling off the second clamping portion 1132.

[0042] like Figures 4 to 6 As shown, the second embodiment of the present utility model provides a material taking device, which includes the clamping assembly 10 and the driving mechanism 30 provided in the above embodiment, the driving mechanism 30 is drivingly connected with the clamping assembly 10, and the driving mechanism 30 drives the clamping assembly 10 to move. With such a structural setting, the position of the clamping assembly 10 can be adaptively adjusted through the driving of the driving mechanism 30, so as to facilitate the material taking operation.

[0043] With the material taking device provided in this embodiment, when the part 20 to be clamped enters the material receiving mechanism 40, the main body 13 descends to drive the positioning structure 12 to move downward to abut and position the part 20 to be clamped. After the positioning is completed, the clamping structure 11 of the clamping assembly 10 clamps the head of the part 20 to be clamped. Then, the driving mechanism 30 drives the clamping assembly 10 and the part 20 to be clamped by the clamping assembly 10 to move to the designated position for assembly. With such a setting, the material taking operation is more convenient and efficient, which is conducive to the automatic operation of the material taking operation.

[0044] Specifically, the material picking device includes a plurality of clamping assemblies 10, and the driving mechanism 30 is connected to the plurality of clamping assemblies 10 to synchronously drive the plurality of clamping assemblies 10 to transfer, thereby improving the material picking efficiency. Specifically, the plurality of clamping assemblies 10 are arranged at intervals along a preset direction. Specifically, the preset direction is the arrangement direction of the material discharge position on the material receiving mechanism 40. In this way, it is convenient for the plurality of clamping assemblies 10 to dock with the to-be-clamped parts 20 in the material discharge position on the material receiving mechanism 40.

[0045] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: realize accurate positioning of the material, ensure the axial position of the material after the clamp clamps the material, thereby stably and efficiently realizing the material picking, positioning and transfer of the clamped part, and avoiding the clamping of the clamped part.

[0046] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0048] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A clamping assembly, characterized in that: include: A clamping structure (11), the clamping structure (11) comprising a first clamping arm (112) and a second clamping arm (113), at least one of the first clamping arm (112) and the second clamping arm (113) being movably arranged so that the clamping structure (11) is in a clamping state of clamping on a to-be-clamped part (20) or in a loosening state of avoiding the to-be-clamped part (20); when the clamping structure (11) is in the clamping state, at least parts of the first clamping arm (112) and the second clamping arm (113) are spaced apart to enclose a clamping space (111); a positioning structure (12), at least a portion of the positioning structure (12) being disposed in the clamping space (111), and at least a portion of the positioning structure (12) being used to abut against the to-be-clamped member (20); The main body (13) is arranged to be liftable, and the clamping structure (11) and the positioning structure (12) are both arranged on the main body (13).

2. The clamping assembly according to claim 1, characterized in that: The positioning structure (12) comprises: A positioning body (121) is arranged in the clamping space (111); A connecting member (122) is connected to the positioning body (121), the connecting member (122) extends out of the clamping space (111), and the connecting member (122) is arranged on the side of the clamping structure (11).

3. The clamping assembly according to claim 2, characterized in that: The connecting member (122) is arranged on the main body (13), and the positioning body (121) is arranged to extend out of the main body (13).

4. The clamping assembly according to claim 3, characterized in that: The main body (13) is provided with a first clamping structure (131), the connecting piece (122) is provided with a second clamping structure adapted to the first clamping structure (131), and the second clamping structure is clamped and matched with the first clamping structure (131).

5. The clamping assembly according to claim 3, characterized in that: The clamping structure (11) is installed at the end of the main body (13), the periphery of the end of the main body (13) protrudes from the clamping structure (11), and the connecting piece (122) is arranged on the side of the main body (13).

6. The clamping assembly according to claim 1, characterized in that: At least one of the first clamping arm (112) and the second clamping arm (113) is movably arranged in a direction approaching or moving away from the other of the first clamping arm (112) and the second clamping arm (113); the end of the first clamping arm (112) and the end of the second clamping arm (113) are both adapted to the periphery of the object to be clamped (20), and at least a portion of the positioning structure (12) is arranged relative to the end of the first clamping arm (112) and / or the end of the second clamping arm (113).

7. The clamping assembly according to claim 6, characterized in that The positioning structure (12) is installed on the side of the main body (13), and the clamping structure (11) is installed at the end of the main body (13); wherein, a first guide portion is provided on the first clamping arm (112), a second guide portion is provided on the second clamping arm (113), and a third guide portion (132) is provided at the end of the main body (13), and the third guide portion (132) extends along the arrangement direction of the first clamping arm (112) and the second clamping arm (113), and the first guide portion and the second guide portion are both guided and adapted to the third guide portion (132).

8. The clamping assembly according to claim 6, characterized in that: The first clamping arm (112) includes a first main arm (1121) and a first clamping portion (1122) which are connected to each other; the second clamping arm (113) includes a second main arm (1131) and a second clamping portion (1132) which are connected to each other; the second main arm (1131) is opposite to and spaced from the first main arm (1121); the second clamping portion (1132) is opposite to the first clamping portion (1122); the first main arm (1121), the second main arm (1131), the first clamping portion (1122) and the second clamping portion (1132) enclose the clamping space (111); the first clamping portion (1122) forms the end of the first clamping arm (112); and the second clamping portion (1132) forms the end of the second clamping arm (113).

9. The clamping assembly according to claim 8, characterized in that: The part to be clamped (20) is provided with a first positioning step (21) and a second positioning step (22) at intervals, the first positioning step (21) is located at the end of the part to be clamped (20), the first clamping portion (1122) is provided with a first positioning groove (11221), the second clamping portion (1132) is provided with a second positioning groove (11321), the first positioning groove (11221) and the second positioning groove (11321) are both adapted to the part of the part to be clamped (20) located between the first positioning step (21) and the second positioning step (22); Wherein, at least a portion of the first clamping portion (1122) is arranged opposite to the first positioning step (21), so that the first clamping portion (1122) and the first positioning step (21) are abutted and limited; and / or, At least a portion of the second clamping portion (1132) is arranged opposite to the first positioning step (21), so that the second clamping portion (1132) and the first positioning step (21) are abutted and limited.

10. A material taking device, characterized in that: include: The clamping assembly according to any one of claims 1 to 9; A driving mechanism (30), wherein the driving mechanism (30) is drivingly connected to the clamping assembly, and the driving mechanism (30) drives the clamping assembly to move.

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