A pincer arm assembly
By designing a clamp arm assembly and using a connector between the first and second clamp arms, the welding and relaxation states can be switched, solving the welding problem in confined spaces in vehicles, reducing costs and improving welding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIQI FOTON MOTOR CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-12
AI Technical Summary
During the vehicle trial production, the space for the window glass guide rail was small, and the existing welding clamps could not meet the welding strength requirements. In addition, the irregularly shaped welding clamps were complex in design, expensive, and had high maintenance costs.
Design a clamp arm assembly including a first clamp arm, a second clamp arm, and an adapter, which are connected by an elastic element to allow the second clamp arm to move closer to or further away from the first clamp arm, switching between welding and relaxed states. The components are simple and suitable for welding in confined spaces.
It reduces manufacturing and maintenance costs, improves welding efficiency and quality, and is adaptable to welding tasks of different sizes and shapes, especially welding in confined areas.
Smart Images
Figure CN224347189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding technology, and in particular to a clamp arm assembly. Background Technology
[0002] During the vehicle prototyping process, the limited space in the window glass guide rails made welding difficult. Ordinary welding clamps could not meet the required welding strength. Although irregularly shaped welding clamps could meet the welding strength requirements, they were complex to design, expensive, and had high maintenance costs. Utility Model Content
[0003] In view of the above problems, the present invention provides a clamp arm assembly that overcomes or at least partially solves the above problems.
[0004] To address the aforementioned problems, this utility model discloses a clamp arm assembly, comprising:
[0005] Adapter;
[0006] A first clamping arm, one end of which is connected to the adapter;
[0007] The second clamping arm, one end of which is movably connected to the adapter, so that the other end of the second clamping arm is close to or away from the other end of the first clamping arm;
[0008] An elastic element, one end of which is fixedly connected to the first clamp arm, and the other end of which is fixedly connected to the second clamp arm.
[0009] Optionally, the clamp arm assembly further includes a guide member, and the elastic member is sleeved on the guide member;
[0010] One end of the guide is fixedly connected to the first clamp arm, and the guide protrudes from the side of the first clamp arm facing the second clamp arm; or, one end of the guide is fixedly connected to the second clamp arm, and the guide protrudes from the side of the second clamp arm facing the first clamp arm.
[0011] Optionally, the adapter includes a first adapter portion and a second adapter portion, the first adapter portion and the second adapter portion being connected to form an L-shaped structure;
[0012] The end of the first adapter that is away from the second adapter is fixedly connected to one end of the first clamp arm;
[0013] The end of the second adapter that is away from the first adapter is rotatably connected to one end of the second clamp arm.
[0014] Optionally, the clamp arm assembly further includes a pin, and a groove is provided at the end of the second adapter portion away from the first adapter portion;
[0015] One end of the second clamp arm is located within the groove;
[0016] The pins are respectively inserted at one end of the second clamp arm and at the end of the second adapter that is away from the first adapter.
[0017] Optionally, the other end of the elastic member is connected to the first adapter, so that the elastic member is fixedly connected to one end of the second clamp arm through the adapter.
[0018] Optionally, the other end of the first clamp arm is provided with a first protrusion, and the other end of the second clamp arm is provided with a second protrusion;
[0019] The first protrusion and the second protrusion are disposed between the first clamp arm and the second clamp arm;
[0020] The first protrusion and the second protrusion are arranged opposite to each other and are used to contact the two sides of the workpiece to be processed, respectively.
[0021] Optionally, both the first clamp arm and the second clamp arm are conductive components, and both the first clamp arm and the second clamp arm are insulated from the adapter.
[0022] Optionally, the adapter is an insulating component, or the adapter includes a connecting body and an insulating outer shell enclosing the connecting body.
[0023] Optionally, the clamp arm assembly includes a base, and the adapter includes a first connecting portion and a second connecting portion that are movably connected;
[0024] The first connecting part is fixedly connected to the base;
[0025] One end of the first clamp arm is fixedly connected to the first connecting part and / or the base;
[0026] One end of the second clamp arm is fixedly connected to the second connecting part.
[0027] Optionally, the first clamp arm is insulated from the first connecting portion and / or the base;
[0028] The second clamp arm is insulated from the second connecting part.
[0029] The embodiments of this utility model have the following advantages:
[0030] In this embodiment of the invention, the clamp arm assembly includes a first clamp arm and a second clamp arm, which are connected by an adapter. This allows the other end of the second clamp arm to move closer to or further away from the other end of the first clamp arm, thereby enabling the clamp arm assembly to switch between a welding state and a relaxed state. The clamp arm assembly has simple components, making it convenient for welding confined spaces on vehicles. Furthermore, the simple components of the clamp arm assembly help reduce manufacturing and maintenance costs. Attached Figure Description
[0031] Figure 1 This is a structural schematic diagram of a clamp arm assembly according to this utility model;
[0032] Figure 2 This is a front view of a clamp arm assembly according to this utility model;
[0033] Figure 3 This is a top view of a clamp arm assembly according to this utility model;
[0034] Figure 4 This is a side view of a clamp arm assembly according to the present invention;
[0035] Figure 5 This is a schematic diagram of another clamp arm assembly of this utility model;
[0036] Figure 6 This is a schematic diagram of another clamp arm assembly of this utility model.
[0037] Explanation of reference numerals in the attached figures:
[0038] 1. Adapter; 11. First adapter; 12. Second adapter; 13. First connecting part; 14. Second connecting part; 2. First clamp arm; 21. First protrusion; 3. Second clamp arm; 31. Second protrusion; 4. Clearance space; 5. Elastic element; 6. Guide element; 7. Pin; 8. Base. Detailed Implementation
[0039] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0040] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0043] The core concept of this utility model embodiment lies in disclosing a clamp arm assembly, such as... Figures 1 to 6 As shown, the assembly includes: an adapter 1; a first clamping arm 2, one end of which is connected to the adapter 1; and a second clamping arm 3, one end of which is movably connected to the adapter 1, the other end of which is close to or away from the other end of the first clamping arm 2. When the other end of the second clamping arm 3 is close to the other end of the first clamping arm 2, the clamping arm assembly switches to a welding state; when the other end of the second clamping arm 3 is away from the other end of the first clamping arm 2, the clamping arm assembly switches to a relaxed state. The clamping arm assembly also includes an elastic element 5, one end of which is fixedly connected to the first clamping arm 2, and the other end of which is fixedly connected to the second clamping arm 3.
[0044] In this embodiment of the invention, the clamp arm assembly includes a first clamp arm 2 and a second clamp arm 3. The first clamp arm 2 and the second clamp arm 3 are connected by an adapter 1, allowing the other end of the second clamp arm 3 to move closer to or further away from the other end of the first clamp arm 2, thereby enabling the clamp arm assembly to switch between a welding state and a relaxed state. The clamp arm assembly has simple components, making it convenient to use for welding confined spaces on vehicles. Moreover, the simple components of the clamp arm assembly help reduce manufacturing and maintenance costs.
[0045] In this embodiment of the invention, the clamp arm assembly is relatively miniaturized, adaptable to workpieces of different sizes and shapes, and flexibly suited for handling a large number of non-standard sized welding tasks, thus having a wide range of applications. Therefore, for vehicles in trial production with small batches or limited production, it can reduce cost input during the trial production process while ensuring welding requirements are met.
[0046] In addition, compared with traditional welding clamps, the clamp arm assembly has a simple structure, which not only reduces manufacturing costs and maintenance complexity and time, but also helps to reduce the weight of the welding clamp and improve operating efficiency.
[0047] Moreover, due to the miniaturization of the clamp arm assembly, it can enter narrow and difficult welding areas. It is lightweight and compact, making it easy to operate and requiring less skill from the operator, which helps to improve the efficiency and quality of welding work.
[0048] In the embodiments of this utility model, such as Figures 1 to 5 As shown, the clamp arm assembly may include a first clamp arm 2, a second clamp arm 3, and an adapter 1; one end of the first clamp arm 2 and one end of the second clamp arm 3 are movably connected by the adapter 1, and the other ends of the first clamp arm 2 and the second clamp arm 3 are close to each other. The clamp arm assembly can be switched to a welding state to facilitate contact with the workpiece to be processed. The other ends of the first clamp arm 2 and the second clamp arm 3 are far apart from each other, so that a receiving space can be formed between the other ends of the first clamp arm 2 and the second clamp arm 3. The clamp arm assembly can be switched to a relaxed state to facilitate the placement of the workpiece to be processed.
[0049] Specifically, the clamp arm assembly in this embodiment of the present invention can be used in conjunction with a conventional welding clamp. For example, when welding in a confined space, after the workpiece to be welded is positioned and clamped, the electrode head of the first clamp arm 2 can be placed at the position where the workpiece needs to be marked. The stationary arm of the conventional welding clamp is then in contact with the first clamp arm 2. The moving arm of the conventional welding clamp then presses the second clamp arm 3, so that the other end of the second clamp arm 3 is close to the other end of the first clamp arm 2. Both the first clamp arm 2 and the second clamp arm 3 are in contact with the workpiece. The first clamp arm 2 and the second clamp arm 3 can be energized under the action of the conventional welding clamp to achieve welding of the workpiece.
[0050] Specifically, one end of the first clamp arm 2 is fixedly connected to the adapter 1. For example, one end of the first clamp arm 2 can be fixedly connected to the adapter 1 by adhesive or bolts; or, one end of the first clamp arm 2 can also be movably connected to the adapter 1. For example, one end of the first clamp arm 2 can be hinged to the adapter 1, or rotatably connected by a pin 7. One end of the second clamp arm 3 is movably connected to the adapter 1. For example, one end of the second clamp arm 3 can be hinged to the adapter 1, or rotatably connected by a pin 7. In this embodiment, at least one of the first clamp arm 2 and the second clamp arm 3 is movably connected to the adapter 1, which allows the relative position of the first clamp arm 2 and the second clamp arm 3 to be adjustable.
[0051] Specifically, the first clamp arm 2 and the second clamp arm 3 can be connected to the same side of the adapter 1, and both extend away from the adapter 1.
[0052] Furthermore, the clamp arm assembly may also include an elastic element 5, which may be a compression spring, a tension spring, or a spring sheet, etc. One end of the elastic element 5 is fixedly connected to the first clamp arm 2, and the other end is fixedly connected to the second clamp arm 3. In this way, after the external force on the first clamp arm 2 and / or the second clamp arm 3 disappears, the elastic element 5 can drive the first clamp arm 2 and the second clamp arm 3 to return to their initial state.
[0053] For example, under the action of external force, the first clamp arm 2 and / or the second clamp arm 3 can be squeezed, so that the other end of the first clamp arm 2 and the other end of the second clamp arm 3 are close to each other, and the clamp arm assembly can be switched to the welding state, and the elastic element 5 is compressed; after the external force disappears, the elastic element 5 rebounds, causing the other end of the first clamp arm 2 and the other end of the second clamp arm 3 to move away from each other, and the clamp arm assembly can be switched to the relaxed state.
[0054] Specifically, the side of the second clamp arm 3 facing away from the first clamp arm 2 may have a flat surface, so that the force-applying structure can apply pressure to the second clamp arm 3 through the flat surface, thereby bringing the other end of the second clamp arm 3 closer to the other end of the first clamp arm 2. Alternatively, the side of the second clamp arm 3 facing away from the first clamp arm 2 may have a recessed portion, and the force-applying structure may be opposite to the recessed portion to apply pressure to the second clamp arm 3 through the recessed portion, etc.
[0055] In some embodiments, one end of the elastic element 5 is fixedly connected to the first clamp arm 2, and the other end of the elastic element 5 is fixedly connected to the second clamp arm 3. This can prevent the position of the elastic element 5 from shifting and improve the reliability of the elastic element 5 in driving the first clamp arm 2 and the second clamp arm 3 to return to their initial state.
[0056] In this embodiment of the utility model, during the vehicle trial production process, for locations with limited space such as the window glass guide rail, the clamp arm assembly has a simple structure and can be welded, making the process relatively simple and convenient.
[0057] Optionally, the clamp arm assembly further includes a guide 6, and an elastic member 5 is sleeved on the guide 6; one end of the guide 6 is fixedly connected to the first clamp arm 2, and the guide 6 protrudes from the side of the first clamp arm 2 facing the second clamp arm 3; or, one end of the guide 6 is fixedly connected to the second clamp arm 3, and the guide 6 protrudes from the side of the second clamp arm 3 facing the first clamp arm 2.
[0058] In this embodiment of the utility model, one end of the guide member 6 can be fixedly connected to one of the first clamp arm 2 and the second clamp arm 3. The elastic member 5 is sleeved on the guide member 6 so that the guide member 6 can play a limiting and guiding role to the elastic member 5, which makes it easier to control the direction of the rebound force applied by the elastic member 5 to the first clamp arm 2 and / or the second clamp arm 3, and can more effectively ensure that the elastic member 5 drives the first clamp arm 2 and the second clamp arm 3 to return to the initial state.
[0059] Specifically, the guide member 6 can be a guide rod or a guide post, etc. One end of the guide member 6 can be connected to the first clamp arm 2, and the guide member 6 can move relative to the second clamp arm 3 together with the first clamp arm 2. Alternatively, one end of the guide member 6 can be connected to the second clamp arm 3, so that the guide member 6 can move relative to the first clamp arm 2 together with the second clamp arm 3.
[0060] Specifically, the guide can be directly fixedly connected to the first clamp arm 2, or indirectly fixedly connected through the adapter 1, etc.
[0061] In some alternative embodiments, the adapter 1 may be elongated, with one end connected to the first clamp arm 2 and the other end movably connected to the second clamp arm 3.
[0062] In some alternative embodiments, the adapter 1 includes a first adapter portion 11 and a second adapter portion 12, the first adapter portion 11 and the second adapter portion 12 are connected to form an L-shaped structure; the end of the first adapter portion 11 away from the second adapter portion 12 is fixedly connected to one end of the first clamp arm 2; the end of the second adapter portion 12 away from the first adapter portion 11 is rotatably connected to one end of the second clamp arm 3.
[0063] In this embodiment of the invention, the first adapter 11 and the second adapter 12 are connected to form an L-shaped structure, making the adapter 1 L-shaped. The end of the first adapter 11 away from the second adapter 12 is fixedly connected to one end of the first clamp arm 2; the end of the second adapter 12 away from the first adapter 11 is rotatably connected to one end of the second clamp arm 3, which helps to ensure the structural strength of the adapter 1 and improve the structural strength of the entire clamp arm assembly.
[0064] Specifically, the adapter 1 is L-shaped, allowing it to function as a grip for easy handling by the operator. Alternatively, in other cases, a handle may be provided on the side of the adapter 1 opposite to the first clamp arm 2 and the second clamp arm 3 for easy gripping by the operator to handle the clamp arm assembly.
[0065] Optionally, the clamp arm assembly further includes a pin 7, and a groove is provided at one end of the second adapter 12 away from the first adapter 11; one end of the second clamp arm 3 is located in the groove; the pin 7 passes through one end of the second clamp arm 3 and the end of the second adapter 12 away from the first adapter 11, respectively.
[0066] In this embodiment of the utility model, the pin 7 is respectively inserted through one end of the second clamp arm 3 and the end of the second adapter 12 away from the first adapter 11, so that one end of the second clamp arm 3 can be rotatably connected to the end of the second connecting part 14 away from the first adapter 11 through the pin 7, which facilitates the other end of the second clamp arm 3 to be close to or away from the other end of the first clamp arm 2.
[0067] Specifically, one end of the second clamp arm 3 is located in the groove, so that the groove can limit the second clamp arm 3, which can improve the convenience of assembling the second clamp arm 3 and the second adapter 12.
[0068] Optionally, the other end of the elastic member 5 can be connected to the first adapter 11 so that the elastic member 5 is fixedly connected to one end of the second clamp arm 3 via the adapter 1.
[0069] In this embodiment of the invention, one end of the elastic element 5 and the second clamping arm 3 can be fixedly connected to the first adapter 11, so that the elastic element 5 is indirectly connected to the second clamping arm 3 through the adapter 1, which facilitates the arrangement of the elastic element 5, the adapter 1, and the second clamping arm 3. Moreover, the connection between the elastic element 5 and the first adapter 11, which allows the elastic element 5 to be arranged close to the adapter 1, can also prevent the elastic element 5 from interfering with the first clamping arm 2 and the second clamping arm 3, effectively ensuring the reliability of contact between the first clamping arm 2 and the second clamping arm 3 and the workpiece.
[0070] Optionally, the other end of the first clamp arm 2 is provided with a first protrusion 21, and the other end of the second clamp arm 3 is provided with a second protrusion 31; the first protrusion 21 and the second protrusion 31 are disposed between the first clamp arm 2 and the second clamp arm 3; the first protrusion 21 and the second protrusion 31 are disposed opposite to each other and are used to contact the two sides of the workpiece to be processed respectively.
[0071] In this embodiment of the present invention, the first protrusion 21 protrudes from the other end of the first clamp arm 2, and the second protrusion 31 protrudes from the other end of the second clamp arm 3. Thus, when the clamp arm assembly is switched to the welding state, the first protrusion 21 and the second protrusion 31 can respectively contact the opposite sides of the workpiece to be processed, and there is an avoidance space 4 between the first clamp arm 2 and the second clamp arm 3 to avoid the workpiece to be processed, effectively ensuring the reliability of welding.
[0072] Specifically, the first protrusion 21 can be used as the electrode head of the first clamp arm 2. The second protrusion can be used as the electrode head of the second clamp arm 3.
[0073] Specifically, the extension length of the first protrusion 21 and the extension length of the second protrusion 31 can be the same or different. When the clamp arm assembly is switched to the welding state, the extension directions of the first protrusion 21 and the second protrusion 31 can be the same, and the first protrusion 21 and the second protrusion 31 can be opposite each other, such as... Figure 1 As shown, the first protrusion 21 and the second protrusion 31 are both arranged in the vertical direction.
[0074] Optionally, both the first clamp arm 2 and the second clamp arm 3 are conductive components, and both the first clamp arm 2 and the second clamp arm 3 are insulated from the adapter 1.
[0075] In this embodiment of the invention, both the first clamp arm 2 and the second clamp arm 3 are conductive components, facilitating the welding of the workpiece by energizing the first clamp arm 2 and the second clamp arm 3. Both the first clamp arm 2 and the second clamp arm 3 are insulated from the adapter 1, which improves safety during operation.
[0076] Furthermore, the adapter 1 is an insulating component, or the adapter 1 includes a connecting body and an insulating shell enclosing the connecting body, in order to further ensure the insulation of the adapter 1 and improve the safety during operation.
[0077] In some alternative embodiments, such as Figure 6 As shown, the clamp arm assembly may also include a base 8, and the adapter 1 includes a first connecting part 13 and a second connecting part 14 that are movably connected; the first connecting part 13 is fixedly connected to the base 8; one end of the first clamp arm 2 is fixedly connected to the first connecting part 13 and / or the base 8; and one end of the second clamp arm 3 is fixedly connected to the second connecting part 14.
[0078] In this embodiment of the invention, the adapter 1, the first clamping arm 2, and the second clamping arm 3 can all be arranged on the base 8, so that the clamping arm assembly can form a fixed structure. This allows the welding operation on the workpiece to be performed by moving it during the welding process. Furthermore, in this embodiment of the invention, the position of the welding point can be changed by moving the workpiece, facilitating the welding of small and lightweight products.
[0079] Specifically, the first connecting part 13 can be fixed to the base 8 by means of bolts or welding. The first connecting part 13 and the second connecting part 14 can be hinged or rotatably connected by a pin 7. In this way, the first clamp arm 2 is connected to the first connecting part 13, and the second clamp arm 3 is connected to the second connecting part 14. During the relative movement of the first connecting part 13 and the second connecting part 14, the first clamp arm 2 and the second clamp arm 3 can be driven to move relative to each other.
[0080] Specifically, the first connecting part 13 can be directly fixedly connected to the first connecting part 13, or it can be indirectly fixed to the base 8 by being fixedly connected to the base 8.
[0081] Optionally, the first clamp arm 2 is insulated from the first connecting part 13 and / or the base 8; the second clamp arm 3 is insulated from the second connecting part 14, so as to ensure the safety of the operator.
[0082] The clamp arm assembly described in this embodiment of the present invention may include at least the following advantages:
[0083] In this embodiment of the invention, the clamp arm assembly includes a first clamp arm and a second clamp arm, which are connected by an adapter. This allows the other end of the second clamp arm to move closer to or further away from the other end of the first clamp arm, thereby enabling the clamp arm assembly to switch between a welding state and a relaxed state. The clamp arm assembly has simple components, making it convenient for welding confined spaces on vehicles. Furthermore, the simple components of the clamp arm assembly help reduce manufacturing and maintenance costs.
[0084] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0085] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.
[0086] The clamp arm assembly provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A clamp arm assembly, characterized in that, include: Adapter (1); First clamp arm (2), one end of the first clamp arm (2) is connected to the adapter (1); The second clamp arm (3) has one end movably connected to the adapter (1) so that the other end of the second clamp arm (3) is close to or away from the other end of the first clamp arm (2); An elastic element (5) is fixedly connected at one end to the first clamp arm (2) and at the other end to the second clamp arm (3).
2. The clamp arm assembly according to claim 1, characterized in that, The clamp arm assembly also includes a guide (6), and the elastic element (5) is sleeved on the guide (6); One end of the guide (6) is fixedly connected to the first clamp arm (2), and the guide (6) protrudes from the side of the first clamp arm (2) facing the second clamp arm (3); or, one end of the guide (6) is fixedly connected to the second clamp arm (3), and the guide (6) protrudes from the side of the second clamp arm (3) facing the first clamp arm (2).
3. The clamp arm assembly according to claim 1, characterized in that, The adapter (1) includes a first adapter (11) and a second adapter (12), the first adapter (11) and the second adapter (12) are connected to form an L-shaped structure; The end of the first adapter (11) away from the second adapter (12) is fixedly connected to one end of the first clamp arm (2); The end of the second adapter (12) away from the first adapter (11) is rotatably connected to one end of the second clamp arm (3).
4. The clamp arm assembly according to claim 3, characterized in that, The clamp arm assembly also includes a pin (7), and the second adapter (12) has a groove at one end away from the first adapter (11); One end of the second clamp arm (3) is located within the groove; The pins (7) are respectively inserted at one end of the second clamp arm (3) and at the end of the second adapter (12) away from the first adapter (11).
5. The clamp arm assembly according to claim 3, characterized in that, The other end of the elastic element (5) is connected to the first adapter (11) so that the elastic element (5) is fixedly connected to one end of the second clamp arm (3) through the adapter (1).
6. The clamp arm assembly according to claim 1, characterized in that, The other end of the first clamp arm (2) is provided with a first protrusion (21), and the other end of the second clamp arm (3) is provided with a second protrusion (31); The first protrusion (21) and the second protrusion (31) are disposed between the first clamp arm (2) and the second clamp arm (3); The first protrusion (21) and the second protrusion (31) are arranged opposite to each other and are used to contact the two sides of the workpiece to be processed, respectively.
7. The clamp arm assembly according to claim 1, characterized in that, Both the first clamp arm (2) and the second clamp arm (3) are conductive components, and both the first clamp arm (2) and the second clamp arm (3) are insulated from the adapter (1).
8. The clamp arm assembly according to claim 7, characterized in that, The adapter (1) is an insulating component, or the adapter (1) includes a connecting body and an insulating outer shell encasing the connecting body.
9. The clamp arm assembly according to claim 1, characterized in that, The clamp arm assembly includes a base (8), and the adapter (1) includes a first connecting part (13) and a second connecting part (14) that are movably connected. The first connecting part (13) is fixedly connected to the base (8); One end of the first clamp arm (2) is fixedly connected to the first connecting part (13) and / or the base (8); One end of the second clamp arm (3) is fixedly connected to the second connecting part (14).
10. The clamp arm assembly according to claim 9, characterized in that, The first clamp arm (2) is insulated from the first connecting part (13) and / or the base (8); The second clamp arm (3) is insulated from the second connecting part (14).