A welding robot with a multi-angle adjustable arm

By using a multi-angle adjustable arm structure and a modular welding head design, the problems of limited adjustable arm angle and poor adaptability in traditional welding robots have been solved, thus improving the flexibility and reliability of high-precision welding in multiple scenarios.

CN224424689UActive Publication Date: 2026-06-30SHANDONG KAITAI WELDING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG KAITAI WELDING TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional welding robots have limited ability to adjust the angle of their arms, lack multi-degree-of-freedom linkage, cannot adapt to the welding needs of complex workpieces, and have inconvenient welding head replacement and poor versatility, which affects welding accuracy and efficiency.

Method used

The multi-angle adjustable arm structure includes a high-strength load-bearing mechanism, a modular welding head, and a wear-resistant guide rod. Combined with a precision gear transmission system and servo motor drive, it enables flexible multi-angle adjustment and quick replacement of the welding head, enhancing the adaptability and reliability of the equipment.

Benefits of technology

It improves the operational flexibility and process adaptability of welding robots, meets the needs of high-precision welding in multiple scenarios, extends the service life of equipment, and improves the stability of welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a multi-angle adjustable arm for a welding robot, belonging to the field of mechanical engineering technology. It includes a support mechanism and a fixing component mounted on the support mechanism for stable installation of the overall structure. The fixing component includes a base and a support column. The base is connected to the support mechanism, and the support column is mounted on the base to enhance the stability and height adjustment capability of the overall structure. The drive mechanism includes an adjustment assembly and a welding assembly. This utility model, by setting an adjustment assembly composed of a first, second, and third adjusting arm, combined with a modular welding head and a guide rod with a wear-resistant protective layer, effectively solves the problems of limited angle adjustment, poor adaptability, and insufficient guiding performance of traditional welding adjusting arms. This improves the operational flexibility, process adaptability, and operational reliability of the welding robot, meeting the technical requirements of modern industry for high-precision, multi-scenario welding equipment.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering technology, specifically relating to a multi-angle adjustable arm for a welding robot. Background Technology

[0002] In modern industrial welding applications, welding robots face higher demands for adaptability to complex structures and welding precision. Traditional welding robotic arms typically employ fixed or single-degree-of-freedom adjustable structures, making it difficult to meet the needs of multi-angle and multi-directional welding, especially when dealing with curved surfaces and irregularly shaped workpieces, resulting in large blind spots and inconsistent welding quality. Furthermore, the welding heads of existing equipment are mostly fixedly installed, making replacement inconvenient and limiting their adaptability to different welding processes. Therefore, a welding robot adjustable arm with flexible multi-angle adjustment, high positioning accuracy, and good process adaptability is needed to improve welding efficiency and automation levels.

[0003] In existing technologies, the traditional welding robot adjustment arm structure is relatively fixed, usually only having limited angle adjustment capabilities and lacking multi-degree-of-freedom linkage adjustment functions. This makes it difficult for the welding head to adapt to the welding requirements of complex workpieces, affecting welding accuracy and efficiency. In addition, most devices adopt an integrated welding head design, which cannot be quickly replaced according to different welding processes, resulting in poor versatility. Furthermore, the guide components are prone to wear due to welding wire friction, affecting welding stability and equipment lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a multi-angle adjustable arm for a welding robot, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A welding robot multi-angle adjustable arm, including

[0007] The load-bearing mechanism provides structural support and a mounting base for the entire adjusting arm;

[0008] A fastener, provided on the supporting mechanism, is used to achieve a stable installation of the overall structure;

[0009] The fastener includes a base and a support column. The base is connected to the load-bearing mechanism, and the support column is disposed on the base to enhance the stability and height adjustment capability of the overall structure.

[0010] The drive mechanism includes an adjustment component and a welding component;

[0011] The adjustment assembly includes a first adjustment arm, a second adjustment arm, and a third adjustment arm. One end of the first adjustment arm is connected to the support column, and the other end is connected to the second adjustment arm. The second adjustment arm is connected to the third adjustment arm via a joint, enabling flexible adjustment at multiple angles.

[0012] The welding assembly includes a welding head, a guide rod, and a positioning ring. The welding head is located at the end of the third adjusting arm. The guide rod is connected to the welding head and is used to guide the welding wire feeding path. The positioning ring is sleeved on the guide rod and is used to precisely control the position of the welding wire.

[0013] As a preferred embodiment of this utility model, the bearing mechanism is made of high-strength metal material, which has good mechanical strength and fatigue resistance, and can adapt to long-term stable operation under frequent angle adjustments.

[0014] As a preferred embodiment of this utility model, the support column is equipped with a height adjustment device, which can adjust the height of the fixing component according to different welding requirements, thereby improving the flexibility and applicability of the equipment.

[0015] As a preferred embodiment of this utility model, the first adjusting arm, the second adjusting arm, and the third adjusting arm are equipped with a precision gear transmission system, which is driven by a servo motor to achieve smooth rotation and precise positioning between the adjusting arms.

[0016] As a preferred embodiment of this utility model, the welding head adopts a modular design, which allows for quick replacement of different types or specifications of welding heads according to different welding processes, thereby improving the versatility and ease of operation of the equipment.

[0017] As a preferred embodiment of this utility model, the outer side of the guide rod is covered with a wear-resistant protective layer to reduce frictional damage between the welding wire and the guide rod during the conveying process, extend the service life and ensure welding quality.

[0018] Compared with the prior art, the beneficial effects of this utility model are: by setting an adjustment assembly consisting of a first adjustment arm, a second adjustment arm and a third adjustment arm, and combining it with a modular welding head and a guide rod with a wear-resistant protective layer, the problems of limited angle adjustment, poor adaptability and insufficient guiding performance of traditional welding adjustment arms are effectively solved, thereby improving the operational flexibility, process adaptability and operational reliability of welding robots, and meeting the technical requirements of modern industry for high-precision, multi-scenario welding equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0022] Figure 3 This is a side view of the present invention;

[0023] Figure 4 This is a schematic diagram of the welding assembly of this utility model.

[0024] In the figure: 100, bearing mechanism; 101, fixing component; 1011, base; 1012, support column; 200, drive mechanism; 201, adjustment assembly; 2011, first adjustment arm; 2012, second adjustment arm; 2013, third adjustment arm; 202, welding assembly; 2021, welding head; 2022, guide rod; 2023, positioning ring. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example

[0029] Reference Figures 1-4 This is an embodiment of the present invention, which provides a multi-angle adjustable arm for a welding robot, comprising:

[0030] The supporting mechanism 100 is used to provide structural support and installation foundation for the entire adjusting arm;

[0031] The fastener 101 is provided on the bearing mechanism 100 and is used to achieve a stable installation of the overall structure.

[0032] The fastener 101 includes a base 1011 and a support column 1012. The base 1011 is connected to the bearing mechanism 100, and the support column 1012 is provided on the base 1011 to enhance the stability and height adjustment capability of the overall structure.

[0033] The drive mechanism 200 includes an adjustment component 201 and a welding component 202;

[0034] The adjustment assembly 201 includes a first adjustment arm 2011, a second adjustment arm 2012 and a third adjustment arm 2013. One end of the first adjustment arm 2011 is connected to the support column 1012 and the other end is connected to the second adjustment arm 2012. The second adjustment arm 2012 is connected to the third adjustment arm 2013 through a joint, so as to realize flexible adjustment at multiple angles.

[0035] The welding assembly 202 includes a welding head 2021, a guide rod 2022, and a positioning ring 2023. The welding head 2021 is located at the end of the third adjusting arm 2013. The guide rod 2022 is connected to the welding head 2021 and is used to guide the welding wire feeding path. The positioning ring 2023 is sleeved on the guide rod 2022 and is used to precisely control the position of the welding wire.

[0036] Specifically, the load-bearing mechanism 100 is made of high-strength metal material, which has good mechanical strength and fatigue resistance, and can adapt to long-term stable operation under frequent angle adjustments.

[0037] It should be noted that the bearing mechanism 100 is made of high-strength metal material. While ensuring the overall structural rigidity and stability, it has good fatigue resistance and durability, and can adapt to the long-term stable operation of the welding robot under frequent angle adjustments and continuous operation, preventing structural deformation or failure caused by mechanical stress.

[0038] Specifically, the support column 1012 is equipped with a height adjustment device, which can adjust the height of the fixing part 101 according to different welding requirements, thereby improving the flexibility and applicability of the equipment.

[0039] It should be noted that the support column 1012 is equipped with a height adjustment device, which can flexibly adjust the overall installation height of the fixing component 101 according to different welding positions or workpiece height requirements, thereby improving the operational flexibility and applicability of the equipment and meeting the actual needs of welding tasks of multiple scenarios and specifications.

[0040] Specifically, the first adjusting arm 2011, the second adjusting arm 2012 and the third adjusting arm 2013 are equipped with a precision gear transmission system, which is driven by a servo motor to achieve smooth rotation and precise positioning between the adjusting arms.

[0041] It should be noted that the first adjusting arm 2011, the second adjusting arm 2012 and the third adjusting arm 2013 are equipped with a precision gear transmission system and are driven by a servo motor to realize the linkage control and smooth rotation between the adjusting arms, ensuring that the welding head can achieve multi-angle precise positioning in three-dimensional space, and improving the repeatability and stability of the welding path.

[0042] Specifically, the welding head 2021 adopts a modular design, which allows for quick replacement of different types or specifications of welding heads according to different welding processes, thereby improving the equipment's versatility and ease of operation.

[0043] It should be noted that the welding head 2021 adopts a modular design, which supports quick replacement of welding head components of different types or specifications, such as special welding heads suitable for MIG, TIG or laser welding processes. This significantly improves the versatility and process adaptability of the adjustment arm, meeting the needs of diverse welding tasks.

[0044] Specifically, the guide rod 2022 is covered with a wear-resistant protective layer on the outside to reduce frictional damage between the welding wire and the guide rod during the conveying process, extend its service life and ensure welding quality.

[0045] It should be noted that the guide rod 2022 is covered with a wear-resistant protective layer, which can effectively reduce the friction coefficient between the guide rod and the welding wire during the welding wire feeding process, reduce wear and heat accumulation, extend the service life of the guide component, and ensure the stability of the welding wire feeding, thereby improving the continuity of the welding process and the consistency of welding quality.

[0046] In use, the support mechanism 100 is first installed on the robot body or fixed work platform, serving as the structural support and installation foundation for the entire adjusting arm. The support mechanism 100 is made of high-strength metal material, ensuring overall structural rigidity and stability while possessing excellent fatigue resistance and durability. It can adapt to the long-term stable operation of the welding robot under frequent angle adjustments and continuous work, preventing structural deformation or failure due to mechanical stress. The fixing component 101 includes a base 1011 and a support column 1012, wherein the base 1011 is connected to the support mechanism. 100. A support column 1012 is mounted on the base 1011 and is equipped with a height adjustment device. This allows for flexible adjustment of the overall installation height of the fixing component according to different welding positions or workpiece height requirements, enhancing the operational flexibility and applicability of the equipment. A drive mechanism 200 is mounted on the fixing component 101 and is used to adjust the angle and control the position of the welding assembly. It mainly includes an adjustment component 201 and a welding assembly 202. The adjustment component 201 consists of a first adjustment arm 2011, a second adjustment arm 2012, and a third adjustment arm 2013, which are connected sequentially via a joint structure. Internally, it features a precision gear transmission system driven by a servo motor, enabling coordinated control and smooth rotation between the adjusting arms. This ensures precise multi-angle positioning of the welding head in three-dimensional space, improving the repeatability and stability of the welding path. The welding assembly 202 includes a welding head 2021, a guide rod 2022, and a positioning ring 2023. The welding head 2021 is located at the end of the third adjusting arm 2013 and adopts a modular design, supporting quick replacement of different types or specifications of welding head assemblies, such as dedicated welding heads suitable for MIG, TIG, or laser welding processes. The head significantly improves the versatility and process adaptability of the adjusting arm. The guide rod 2022 is connected to the welding head 2021 and is used to guide the welding wire feeding path. Its outer side is covered with a wear-resistant protective layer, which can effectively reduce the friction coefficient between the welding wire and the guide rod during the welding wire feeding process, reduce wear and heat accumulation, extend the service life of the guide component, and ensure the stability of welding wire feeding. The positioning ring 2023 is sleeved on the guide rod 2022 and is used to precisely control the position of the welding wire, ensure the centering and consistency during the welding process, thereby improving the stability and reliability of welding quality.

[0047] In summary, by setting up an adjustment assembly 201 consisting of a first adjustment arm 2011, a second adjustment arm 2012, and a third adjustment arm 2013, and combining it with a modular welding head 2021 and a guide rod 2022 with a wear-resistant protective layer, the problems of limited angle adjustment, poor adaptability, and insufficient guiding performance of traditional welding adjustment arms are effectively solved. This improves the operational flexibility, process adaptability, and operational reliability of the welding robot, meeting the technical requirements of modern industry for high-precision, multi-scenario welding equipment.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A welding robot multi-angle adjustment arm, characterized by: include, The load-bearing mechanism (100) is used to provide structural support and installation foundation for the entire adjusting arm; A fastener (101) is provided on the bearing mechanism (100) to achieve a stable installation of the overall structure; The fastener (101) includes a base (1011) and a support column (1012). The base (1011) is connected to the bearing mechanism (100), and the support column (1012) is disposed on the base (1011) to enhance the stability and height adjustment capability of the overall structure. The drive mechanism (200) includes an adjustment assembly (201) and a welding assembly (202); The adjustment assembly (201) includes a first adjustment arm (2011), a second adjustment arm (2012), and a third adjustment arm (2013). One end of the first adjustment arm (2011) is connected to the support column (1012), and the other end is connected to the second adjustment arm (2012). The second adjustment arm (2012) is connected to the third adjustment arm (2013) via a joint, thereby enabling flexible adjustment at multiple angles. The welding assembly (202) includes a welding head (2021), a guide rod (2022), and a positioning ring (2023). The welding head (2021) is located at the end of the third adjusting arm (2013). The guide rod (2022) is connected to the welding head (2021) and is used to guide the welding wire feeding path. The positioning ring (2023) is sleeved on the guide rod (2022) and is used to precisely control the position of the welding wire.

2. A multi-angle adjustment arm for a welding robot according to claim 1, characterized in that: The bearing mechanism (100) is made of high-strength metal material, which has good mechanical strength and fatigue resistance, and can adapt to long-term stable operation under frequent angle adjustments.

3. A multi-angle adjustment arm for a welding robot according to claim 2, characterized in that: The support column (1012) is equipped with a height adjustment device, which can adjust the height of the fixing part (101) according to different welding requirements, thereby improving the flexibility and applicability of the equipment.

4. A multi-angle adjustment arm for a welding robot according to claim 3, characterized in that: The first adjusting arm (2011), the second adjusting arm (2012), and the third adjusting arm (2013) are equipped with a precision gear transmission system, which is driven by a servo motor to achieve smooth rotation and precise positioning between the adjusting arms.

5. A multi-angle adjustment arm for a welding robot as defined in claim 4, characterized in that: The welding head (2021) adopts a modular design, which can quickly replace different types or specifications of welding heads according to different welding processes, thereby improving the versatility and ease of operation of the equipment.

6. A multi-angle adjustment arm for a welding robot as defined in claim 5, characterized in that: The guide rod (2022) is covered with a wear-resistant protective layer on the outside to reduce frictional damage between the welding wire and the guide rod during the conveying process, extend service life and ensure welding quality.