Side pulling device for preventing deformation of welding tool

Abstract

The utility model discloses a welding tool anti-deformation side pulling device which comprises a moving mechanism and at least two oppositely-arranged working modules installed on the moving mechanism. The working module comprises a base, a side pulling structural part horizontally and slidably installed on the base and a telescopic air cylinder installed on a base block and connected with the side pulling structural part. The side pulling structural part is matched with a vertical face of the base in a spaced mode, a material placing position is formed by the side pulling structural part and the vertical face, and the telescopic air cylinder drives the side pulling structural part to horizontally move relative to the base. According to the side pulling device, the linear size of the frame can be kept, the assembly precision after welding is improved, the consistency and stability of products can be remarkably improved, and the reworking and adjusting cost caused by welding deformation is reduced.

Description

Technical Field

[0001] The present application relates to the field of machining, and in particular to a side-pulling device for welding tooling and anti-deformation used in machining aluminum profiles. Background Art

[0002] In the prior art, the assembly of aluminum profile boxes usually adopts the process of heating welding, which can achieve a firm connection between materials and provide sufficient structural strength for the final product. Welding, as a mature metal processing process, is widely used in industrial manufacturing. In particular, the importance of welding technology is particularly prominent in the manufacturing process of structural parts that need to withstand large mechanical loads or complex environmental conditions. Therefore, in the assembly of aluminum profile frames, it has become a common practice to use heating welding to complete the connection of various components. However, this conventional welding method also has some more significant problems, which are more obvious in the processing of aluminum profiles.

[0003] Specifically, heating and welding during the aluminum profile enclosure assembly process can cause the frame to shrink. This is because aluminum expands and contracts when heated. During welding, the locally high temperature melts the aluminum profile, and upon cooling, the material shrinks unevenly, leading to geometric deviations across the entire frame. In particular, the uneven stress distribution after welding causes irreversible shrinkage within the enclosure structure. This deformation not only affects the product's smoothness but also adversely impacts subsequent assembly, particularly by directly interfering with the linear dimensions of the customer's assembled modules. This results in significant assembly errors and makes it difficult to ensure product consistency.

[0004] While existing technologies have some measures to mitigate the effects of welding distortion, such as controlling the heating temperature and gradually welding to distribute thermal stress, these measures often fail to completely eliminate distortion, especially in larger aluminum profile frames, where thermal distortion is more challenging to control. Furthermore, some traditional distortion reduction measures can be complex and difficult to achieve precise machining, increasing production costs and time without fundamentally addressing the issue of frame shrinkage caused by heating during welding.

[0005] Therefore, the development of a welding tooling anti-deformation side pulling device that can overcome the shortcomings of the existing technology is of great significance and value, and can effectively meet the requirements of modern manufacturing industry for high-precision and high-efficiency assembly. Utility Model Content

[0006] The purpose of this application is to overcome at least one of the shortcomings of the prior art and to provide a side-pull device for anti-deformation of a welding tool for machining aluminum profiles. The side-pull device helps to maintain the linear size of the frame, improve the assembly accuracy after welding, and significantly improve the consistency and stability of the product, reducing the rework and adjustment costs caused by welding deformation.

[0007] To achieve the above-mentioned purpose, the present application discloses a side-pulling device for anti-deformation of welding tooling, which includes a moving mechanism and at least two relatively arranged working modules installed on the moving mechanism, wherein the working module includes a base, a side-pulling structure installed on the base horizontally slidably, and a telescopic cylinder installed on the base block and connected to the side-pulling structure; the side-pulling structure is spaced apart and matched with a vertical surface of the base to form a material placement position with the vertical surface, and the telescopic cylinder drives the side-pulling structure to move horizontally relative to the base, thereby realizing side-pulling movement relative to the base; at least one pressure sensor is provided on the working surface of the side-pulling structure in contact with the workpiece, and oppositely, a control module installed on the base is connected to the pressure sensor, and the side-pulling pressure data is sent to the control module via the pressure sensor; the control module is also connected to the electric control valve in the telescopic cylinder, and the operation of the telescopic electric control valve is controlled by the control module, thereby controlling the operation of the telescopic cylinder; a laser displacement sensor facing the workpiece is installed on at least one working module.

[0008] In some embodiments, the working module is connected to the moving mechanism via an adjustable mounting bracket.

[0009] In some embodiments, the laser displacement sensor is mounted on the base via a mounting bracket with adjustable orientation.

[0010] In some embodiments, a pressure dividing plate for dispersing the side pulling force is detachably mounted on the working surface of the side pulling structure. The pressure dividing plate directly contacts the workpiece instead of the working surface, thereby reducing the local pulling force on the workpiece.

[0011] In some embodiments, the moving mechanism includes at least one movable shaft and a driving unit that drives the movable shaft to move.

[0012] In some embodiments, a return spring is installed between the base and the pulling-side structure.

[0013] Compared with the prior art, this application has at least one of the following beneficial effects:

[0014] 1. Effectively maintain the linear size of the aluminum profile frame and reduce deformation caused by thermal expansion and contraction during welding.

[0015] 2. Improve the assembly accuracy after welding and reduce the impact of dimensional deviation on subsequent assembly.

[0016] 3. Significantly improve product consistency and stability to ensure batch quality.

[0017] 4. Reduce rework and adjustment costs and improve production efficiency.

[0018] The above-listed beneficial effects are not exhaustive and other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description sections of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] After reading the following detailed description in conjunction with the accompanying drawings, you will better understand the various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the drawings and the like sometimes do not represent the actual positions, sizes, and ranges. In the drawings:

[0020] Figure 1 It is a structural diagram of an embodiment disclosed in this application.

[0021] Figure 2 It is a structural schematic diagram of an embodiment disclosed in this application from another perspective.

[0022] Figure 3 This is a structural schematic diagram of an embodiment disclosed in the present application, in which a pressure dividing plate is installed on the side pulling structure. DETAILED DESCRIPTION

[0023] The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide many additional embodiments.

[0024] It should be understood that like reference numerals refer to like elements throughout the drawings. In the drawings, the dimensions of some features may be distorted for clarity.

[0025] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered part of the authorization specification.

[0026] As used in this specification, the singular forms "a," "an," "said," and "the" include the plural forms unless otherwise expressly stated. The terms "include," "comprise," and "contain" as used in this specification indicate the presence of the claimed features, but do not exclude the presence of one or more additional features. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items. Example

[0027] like Figure 1-3 As shown, this embodiment provides a side-pull device for counteracting deformation of welding tooling. The side-pull device consists of a moving mechanism 1, multiple working modules 2, and their coordinated structure. The entire device features a rigorous design logic, with clear and stable connections and collaboration between its components. This enables efficient and stable side-pull action, meeting the need for counteracting deformation during workpiece welding. This precise design ensures that the workpiece's shape is maintained during welding, reducing displacement and deformation caused by thermal stress, thereby improving weld quality and consistency.

[0028] Specifically, the side-pull device's moving mechanism 1 includes at least one movable shaft, which is driven by a drive unit for precise movement. A mounting bracket 101 is mounted on the movable shaft to secure the working modules. The adjustability of mounting bracket 101 allows for highly flexible working module placement, adapting to the welding requirements of different workpieces.

[0029] The moving mechanism 1 plays a supporting and positioning role within the entire device. It uses the drive unit to enable each working module 2 to achieve smooth and precise movement along a specific direction. Furthermore, the moving mechanism 1 is equipped with high-precision guide rails to minimize positional errors during movement of the working modules, further improving the stability and consistency of the welding operation.

[0030] In this embodiment, the core structure of the working module 2 consists of a base 201, a side-pull structure 202, and a telescopic cylinder 203 for driving the side-pull structure 202. The side-pull structure 202 is mounted on the base 201 for horizontal sliding. The side-pull structure 202 forms a workpiece placement position 207 by intersecting with a vertical surface 204 of the base 201. This spacing effectively ensures that the workpiece is in the ideal position during welding, helping to reduce cumulative errors during the welding process.

[0031] One end of the telescopic cylinder 203 is fixed to the base 201, and the other end is connected to the side-pull structure 202. The telescopic cylinder 203 enables the side-pull structure 202 to move horizontally relative to the base 201, thereby achieving lateral stretching of the workpiece.

[0032] As a preferred embodiment, a pressure dividing plate 205 for dispersing the side pulling force can be detachably installed on the working surface of the side pulling structure 202. The pressure dividing plate 205 directly contacts the workpiece instead of the working surface, thereby effectively reducing the stress concentration generated on the local part of the workpiece during the side pulling process and ensuring the integrity and processing accuracy of the workpiece.

[0033] The control module 3 is mounted on the base and connected to the pressure sensor 206 and the electrically controlled valve in the telescopic cylinder 203. The pressure sensor 206 is located on the working surface of the lateral tension member 202. When the lateral tension member 202 contacts the workpiece, it monitors the lateral tension in real time and transmits this pressure data to the control module 3. Based on the data fed back by the pressure sensor 206, the control module 3 adjusts the operating state of the telescopic cylinder 203. By precisely controlling the electrically controlled valve, the control module 3 dynamically adjusts the lateral tension to prevent workpiece deformation during welding, thereby maintaining consistent weld quality.

[0034] More specifically, control module 3 integrates a fuzzy logic-based algorithm (the aforementioned algorithm represents the software component of existing technology and will not be further described). This algorithm automatically adjusts the tension parameters based on the workpiece material, welding temperature, and mechanical properties, achieving precise force control and optimized welding results. This adaptive control mechanism significantly improves the device's adaptability and control accuracy in various application scenarios, particularly when welding multiple materials and complex welding paths.

[0035] In this embodiment, the coordinated use of the laser displacement sensor 4 and the pressure sensor 206 is a key link in the workpiece deformation detection and lateral tension control in this embodiment.

[0036] The laser displacement sensor 4 is mounted on one of the working modules 2 and fixed to the base 201 via an adjustable mounting bracket. This allows it to accurately detect changes in the distance between the opposing working module 2 and the side-tension structure 202 in the other working module 2. By scanning with a high-frequency laser beam, the laser displacement sensor 4 can capture in real time the minute displacements of the workpiece caused by thermal stress or other external forces during the welding process, thereby detecting any deformation trends in the workpiece.

[0037] In this embodiment, pressure sensor 206 is mounted on the working surface of the side-tension structure 202, primarily used to monitor the magnitude of the side-tension force in real time. When the side-tension structure 206 contacts the workpiece, the pressure sensor 206 transmits the detected pressure data to the control module 3. Combined with the displacement data from the laser displacement sensor 4, the control module 3 can fully understand the stress state and deformation of the workpiece during the welding process. Using this data, the control module 3 determines whether the workpiece is experiencing excessive deformation or displacement, and dynamically adjusts the side-tension force of the telescopic cylinder 203.

[0038] Specifically, if the laser displacement sensor 4 detects deformation of the workpiece, the control module 3 will adjust the lateral tension detected by the pressure sensor 206 accordingly, and increase or decrease the thrust of the telescopic cylinder 203 by controlling the electronically controlled valve, thereby restoring the workpiece to the ideal position and preventing stress accumulation and deformation during the welding process.

[0039] In a further optimization scheme, the control module 3 may also have a historical data storage function, which can continuously optimize the control strategy by analyzing past welding data, thereby further improving the welding quality.

[0040] This multi-sensor collaborative working mode realizes closed-loop control. The laser displacement sensor 4 provides real-time feedback on the relative position of the workpieces, ensuring that each workpiece remains in the expected welding position, while the pressure sensor 206 ensures that the force applied by the side-pull structure remains within a reasonable range to avoid excessive stress on the workpiece. The control module 3 performs logical operations based on the data of the laser displacement sensor 4 and the pressure sensor 206, and can respond quickly within a time scale of microseconds, thereby accurately adjusting the side-pull force. This closed-loop control system effectively improves the stability of welding and avoids stress concentration and structural defects that may occur during the welding process. The closed-loop control also has a self-diagnosis function, which can issue an alarm in time when the sensor data is abnormal and automatically stop the welding operation to ensure safe production.

[0041] Furthermore, a return spring is installed between the base 201 and the side-pull structure 202 to return the side-pull structure 202 to its initial position after the telescopic cylinder stops operating. This return spring provides a certain degree of elasticity for the side-pull operation, improving the reliability and ease of operation of the device. The use of the return spring ensures that the side-pull structure 202 automatically returns to its initial state after each welding operation, providing consistent initial conditions for the next workpiece.

[0042] The device of this embodiment can be used in welding processes for large metal frame structures. For example, during steel frame welding, the weld area may be deformed due to thermal stress. By applying an appropriate counterforce to the weld area using this side-pull device, the applied force can be dynamically adjusted during welding, thus avoiding welding defects caused by thermal deformation.

[0043] In summary, this embodiment achieves effective control of workpiece welding deformation through sophisticated structural design and precise control methods. This significantly reduces welding stress, improves welding quality, and improves production efficiency, particularly in the welding of large structural parts. Its adaptive control system, precise displacement detection, and elastic reset function combine to enable the device to adapt to a variety of complex welding scenarios, enhancing overall manufacturing capabilities. By reducing human intervention and improving welding accuracy, the device not only significantly improves welding efficiency but also effectively reduces uncertainties in production, ultimately providing a strong guarantee for high-quality manufacturing.

[0044] Although exemplary embodiments of the present disclosure have been described, it will be understood by those skilled in the art that various changes and modifications may be made to the exemplary embodiments of the present disclosure without departing substantially from the spirit and scope of the present disclosure. Therefore, all such changes and modifications are intended to be within the scope of protection of the present disclosure as defined by the appended claims. The present disclosure is defined by the appended claims, and equivalents of these claims are intended to be included therein.

Claims

1. A side pulling device for anti-deformation of welding tooling, characterized in that: The side-pulling device includes: a moving mechanism, at least two relatively arranged working modules installed on the moving mechanism, wherein the working module includes a base, a side-pulling structure installed on the base in a horizontally slidable manner, and a telescopic cylinder installed on the base block and connected to the side-pulling structure; the side-pulling structure is spaced apart from a vertical surface of the base to form a material placement position with the vertical surface, and the telescopic cylinder drives the side-pulling structure to move horizontally relative to the base, thereby realizing side-pulling movement relative to the base; at least one pressure sensor is provided on the working surface of the side-pulling structure in contact with the workpiece, and oppositely, a control module installed on the base is connected to the pressure sensor, and side-pulling pressure data is sent to the control module via the pressure sensor; the control module is also connected to the electric control valve in the telescopic cylinder, and the operation of the telescopic electric control valve is controlled by the control module, thereby controlling the operation of the telescopic cylinder; a laser displacement sensor facing the workpiece is installed on at least one working module.

2. A side-pull device for welding tooling to counteract deformation as claimed in claim 1, characterized in that: The working module is connected to the moving mechanism via an adjustable mounting bracket.

3. A side-pull device for welding tooling to counteract deformation as claimed in claim 1, characterized in that: The laser displacement sensor is mounted on the base via a mounting bracket with adjustable orientation.

4. A side-pull device for welding tooling to counteract deformation as claimed in claim 1, characterized in that: A pressure dividing plate for dispersing the side pulling force is detachably mounted on the working surface of the side pulling structure. The pressure dividing plate directly contacts the workpiece instead of the working surface, thereby reducing the local pulling force on the workpiece.

5. A side-pull device for welding tooling to counteract deformation as claimed in claim 1, characterized in that: The moving mechanism includes at least one movable shaft and a driving unit for driving the movable shaft to move.

6. A side-pull device for welding tooling to counteract deformation as claimed in claim 1, characterized in that: A return spring is installed between the base and the pulling side structural member.

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