Multifunctional arc electric welding equipment

Abstract

The utility model relates to multifunctional arc electric welding equipment which comprises a voltage transformation module capable of converting input alternating current, the voltage transformation module is installed in a welding machine shell, and the outer side of the welding machine shell is further sleeved with a flow guide cover capable of limiting the flowing direction of heat dissipation airflow. The welding machine shell and the flow guide cover are both detachably installed on a movable support, and an air blowing mechanism capable of conveying heat dissipation airflow into a ring body gap jointly limited by the welding machine shell and the flow guide cover is further supported on the movable support. An active heat transfer plate is embedded in the side wall of the welding machine shell, and a welding machine module which is located below the voltage transformation module and electrically connected with the voltage transformation module is further arranged in the welding machine shell. According to the utility model, the working heat can be efficiently transferred to reduce the working temperature of the voltage transformation module, and meanwhile, the complicated arc welding line welding can be completed to widen the welding range.

Description

Technical Field

[0001] This utility model relates to the field of electric welding machine technology, and in particular to a multifunctional arc welding device. Background Technology

[0002] An electric welding machine is a commonly used welding device, primarily used to fix and connect metal parts to form a non-detachable assembly structure. The working principle of an electric welding machine is to melt the welding rod by controlling the generation of a high-temperature electric arc, causing the molten material to fill the space between two metal parts, thus achieving a connection. Essentially, an electric welding machine is a special type of high-power transformer device. It utilizes the significant voltage change generated when inductance is switched on and off, and uses the high-voltage arc generated by the instantaneous short circuit between the positive and negative poles to melt the solder on the welding rod, achieving atomic bonding.

[0003] During the process of instantaneously short-circuiting the positive and negative poles to achieve high-temperature melting of materials, the high-power transformer module of the welding machine generates a large amount of heat, causing a sharp increase in the operating temperature of the transformer module, which can easily lead to malfunction or damage. Although some welding machines have external air-cooling structures to dissipate heat from the transformer module, the existing air-cooling structures easily introduce external dust into the welding machine and coat the surface of high-heat-generating functional modules such as the transformer module. This dust can easily obstruct the functional modules from effectively transferring the heat they generate, severely affecting the heat dissipation effect. Alternatively, existing welding machines may directly install air-cooling structures on the outside of the casing to prevent dust accumulation on the surface of the functional modules. However, due to the obstruction of the casing, the heat diffusion efficiency is low, and heat can easily accumulate inside the casing, causing the temperature of the functional module's environment to rise, resulting in poor overall heat dissipation. In addition, existing air-cooling structures directly exhaust the heat dissipation airflow, failing to effectively reuse the heat dissipation airflow, which to some extent reduces the overall performance and structural functionality. Finally, existing welding equipment typically uses lateral and vertical movement auxiliary structures to adjust the welding station to adapt to different workpieces. However, these are usually used to generate straight welds. When faced with more complex arc welds, they cannot effectively position the welding station, cannot meet increasingly complex welding needs, and cannot perform precise welding processing on welds with complex paths. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional arc welding device that can efficiently transfer working heat while isolating dust and other debris, thereby reducing the working temperature of the transformer module. It also features a support structure that allows for arc-shaped movement to assist the welding module in completing complex arc welds, thus expanding the weldable range. This addresses the problem that existing welding machines cannot effectively transfer the high heat generated by the transformer module during operation. Specifically, dust introduced by the cooling airflow accumulates on the surface of the transformer module, hindering heat dissipation and significantly impacting heat dissipation efficiency. Furthermore, existing cooling airflow cannot be reused, resulting in energy waste and low utilization. In addition, existing welding machines cannot flexibly define complex welding paths such as arcs, failing to effectively adapt to increasingly complex and diverse welding needs.

[0005] The technical solution adopted by this utility model is as follows: a multifunctional arc welding equipment, including a transformer module capable of converting input AC power, the transformer module being installed inside a welding machine housing, and a flow guide shroud being fitted on the outer side of the welding machine housing to limit the flow direction of the heat dissipation airflow, the welding machine housing and the flow guide shroud being detachably mounted on a movable bracket, and an air blowing mechanism being supported on the movable bracket to deliver heat dissipation airflow into the annular gap jointly defined by the welding machine housing and the flow guide shroud; an active heat transfer plate is embedded in the side wall of the welding machine housing, and a welding machine module is also provided inside the welding machine housing below the transformer module and electrically connected to the transformer module.

[0006] According to a preferred embodiment, the welding machine housing is divided into an upper cavity and a lower cavity by a partition, and a conical top shell is provided on the top of the upper cavity. The transformer module is installed in the upper cavity through a connecting plate, and a miniature circulating fan capable of driving airflow to circulate in the upper cavity is provided side by side on the connecting plate.

[0007] According to a preferred embodiment, a connecting support rod is provided on the outer side of the welding machine housing to position it relative to the flow guide shroud; the welding machine module is installed in the lower cavity and electrically connected to the transformer module through a wire passing through the partition; the active heat transfer plate is embedded in the cavity wall of the upper cavity in a manner that enables heat transfer and cooling of the circulating airflow driven by the micro-circulating fan.

[0008] According to a preferred embodiment, the movable support includes a lifting main column, a track ring, a translation mechanism, a drive mechanism, a lifting auxiliary rod, and a mounting platform. The track ring is suspended and supported by multiple lifting main columns spaced apart on the same circumference. The translation mechanism has both ends slidably connected to the inner ring surface of the track ring in a manner that coincides with the radial direction of the track ring. The moving end of the translation mechanism is connected to the mounting platform located below the track ring through the lifting auxiliary rod. The drive mechanism is also provided on the translation mechanism to drive it to deflect within the track ring.

[0009] According to a preferred embodiment, a track groove connected to the translation mechanism is provided on the inner ring surface of the track ring, and an outer toothed ring capable of meshing with the drive mechanism is also provided on the outer ring surface of the track ring.

[0010] According to a preferred embodiment, the translation mechanism includes a guide groove, a rotating screw, a translation block, a translation drive unit, and a curved slider. The rotating screw is rotatably disposed in the cavity of the guide groove, and one end of the rotating screw is connected to the translation drive unit embedded in the guide groove. The translation block is threaded onto the shaft of the rotating screw, and the translation block is partially engaged in the cavity of the guide groove. Both ends of the guide groove are connected to curved sliders that can be mounted on the guide groove.

[0011] According to a preferred embodiment, the drive mechanism includes a mounting block mounted on the top surface of the guide groove, a deflection drive motor embedded in the mounting block, and a gear connected to the motion output shaft of the deflection drive motor, the gear meshing with the external gear ring.

[0012] According to a preferred embodiment, the mounting platform is connected directly below the translation block via the lifting auxiliary rod, the air guide is embedded through the platform body of the mounting platform, and the air blowing mechanism capable of delivering heat dissipation airflow into the air guide is supported on the mounting platform.

[0013] According to a preferred embodiment, the air guide fan of the air blowing mechanism is mounted directly above the air guide shroud via a support frame.

[0014] According to a preferred embodiment, a support base plate is also provided at the lower axial end of the lifting main column.

[0015] The beneficial effects of this utility model are:

[0016] The welding machine housing described in this application allows for the partitioned installation of the transformer module and the welding machine module, thereby reducing the impact of heat generated by the transformer module on the functional components of the welding machine module. The welding machine housing is equipped with an active heat transfer plate capable of actively and directionally transferring heat, thus efficiently and controllably transferring the heat generated by the transformer module within its cavity. This effectively reduces the operating temperature of the transformer module, improving its operational stability and lifespan. Furthermore, the welding machine housing isolates the transformer module from the external environment, preventing dust and other impurities carried by the cooling airflow from accumulating on the transformer module's surface, effectively preventing dust buildup and hindering heat dissipation. The coaxially arranged welding machine housing and air guide can work together to define a flow-directing annular gap, thereby directionally guiding the cooling airflow generated by the air blowing mechanism. This allows the cooling airflow to effectively carry away the heat transferred to the annular gap by the active heat transfer plate, achieving effective transfer of the working heat generated by the transformer module while avoiding direct contact between the cooling airflow and the transformer module, thus preventing dust accumulation and significantly improving the sustainability and effectiveness of heat transfer. The cooling airflow output by the blowing mechanism can continuously increase its velocity as it gradually flows into the annular gap with a decreasing cross-section, thereby accelerating the transfer of heat from the active heat transfer plate to the annular gap. The movable bracket provided in this application can adjust the working position of the welding machine, especially in addition to basic lifting and translation, it can also achieve rotational displacement. Thus, by coordinating translation and rotation, the welding machine can move along the arc welding path to weld non-linear welds on irregularly shaped workpieces, making it suitable for welding the splicing edges of workpieces with various arc butt joint gaps. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a preferred multi-functional arc welding device proposed in this utility model;

[0018] Figure 2 This is a partially enlarged structural schematic diagram of a preferred multi-functional arc welding device proposed in this utility model;

[0019] Figure 3 This is a plan view of a preferred movable support for a multifunctional arc welding equipment proposed in this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the track ring of a preferred multi-functional arc welding device proposed in this utility model.

[0021] List of reference numerals

[0022] 1: Transformer module; 2: Welding machine housing; 3: Draft shield; 4: Movable bracket; 5: Air blowing mechanism; 6: Active heat transfer plate; 7: Welding machine module; 21: Partition plate; 22: Upper cavity; 23: Lower cavity; 24: Conical top shell; 25: Connecting platform; 26: Miniature circulating fan; 27: Connecting support rod; 41: Lifting main column; 42: Track ring; 43: Translation mechanism; 44: Drive mechanism; 45: Lifting auxiliary rod; 46: Mounting platform; 51: Air guide fan; 52: Support frame; 411: Support base plate; 421: Track groove; 422: External gear ring; 431: Guide groove; 432: Rotating screw; 433: Translation block; 434: Translation drive unit; 435: Curved slider; 441: Mounting block; 442: Deflection drive motor; 443: Gear. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is 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.

[0024] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail.

[0025] Furthermore, the technical features described herein, or the steps in all the methods or processes disclosed herein, may be combined in any suitable manner in one or more embodiments, except for mutually exclusive features and / or steps. It will be readily understood by those skilled in the art that the order of steps or operations of the methods relating to the embodiments provided herein may also be altered. Any order in the drawings and embodiments is for illustrative purposes only and does not imply a requirement to follow a particular order unless explicitly stated otherwise.

[0026] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, under reasonable circumstances (without self-contradiction), include both direct and indirect connections (linkages).

[0027] The following is a detailed explanation with reference to the accompanying drawings.

[0028] Example 1

[0029] This application provides a multifunctional arc welding equipment, which includes a transformer module 1, a welding machine housing 2, a flow guide 3, a movable bracket 4, an air blowing mechanism 5, an active heat transfer plate 6, and a welding machine module 7.

[0030] according to Figure 1-4In one specific embodiment shown, a transformer module 1 connected to an external power supply can convert the input AC power as needed. The transformer module 1 is installed inside a welding machine housing 2. A flow guide shroud 3, which defines the flow direction of the cooling airflow, is also fitted on the outside of the welding machine housing 2. Both the welding machine housing 2 and the flow guide shroud 3 are detachably mounted on a movable bracket 4. An air blowing mechanism 5, which delivers cooling airflow into the annular gap defined by the welding machine housing 2 and the flow guide shroud 3, is also supported on the movable bracket 4. An active heat transfer plate 6 is embedded in the side wall of the welding machine housing 2. A welding machine module 7, located below and electrically connected to the transformer module 1, is also provided inside the welding machine housing 2. The transformer module 1 provided in this application is a single functional component combination structure that can convert the input AC power. It does not have an outer shell structure, and the heat generated during its operation can be directly diffused within the welding machine housing 2. The welding machine housing 2 provided in this application can partition and install the transformer module 1 and the welding machine module 7, thereby reducing the impact of the heat generated by the transformer module 1 on the functional components of the welding machine module 7. The welding machine housing 2 provided in this application is equipped with an active heat transfer plate 6 that can actively and directionally transfer heat, thereby efficiently and actively and controllably transferring the heat generated by the transformer module 1 installed in its cavity, so as to effectively reduce the operating temperature of the transformer module 1, improve the operating stability and continuous working life of the transformer module 1, and the welding machine housing 2 can isolate the transformer module 1 from the external environment, so as to prevent dust and other impurities carried by the heat dissipation airflow from accumulating on the surface of the transformer module 1, effectively preventing the disadvantage of dust accumulation and obstruction of heat dissipation. The coaxially arranged welding machine housing 2 and flow guide shroud 3 can cooperate to define a flow-directing annular gap, thereby directionally guiding the cooling airflow generated by the air blowing mechanism 5. This allows the cooling airflow to effectively carry away the heat transferred to the annular gap by the active heat transfer plate 6. This effectively transfers the working heat generated by the transformer module 1 while avoiding dust accumulation caused by direct contact between the cooling airflow and the transformer module 1, greatly improving the sustainability and effectiveness of heat transfer. The cooling airflow output by the air blowing mechanism 5 continuously increases its velocity as it gradually flows into the annular gap with a decreasing cross-section, thereby accelerating the transfer of heat from the active heat transfer plate 6 to the annular gap. The movable bracket 4 provided in this application can adjustably change the working position of the welding machine. In particular, it can achieve rotational displacement in addition to basic lifting and translational displacement. This allows the welding machine to move along the arc welding path through the combination of translation and rotation, enabling welding of non-linear welds on irregularly shaped workpieces. This makes it suitable for welding the splicing edges of workpieces with various arc-shaped butt joint gaps. This application improves the flexibility of application range and welding path by setting up the movable bracket 4, thereby effectively realizing efficient and continuous welding processing of non-linear welds.The airflow output by the air blowing mechanism 5 can clean the welding area while completing heat transfer, thereby effectively improving the cleanliness of the weld. The active heat transfer plate 6 provided in this application can quickly transfer the heat dissipated by the transformer module 1 through active heat transfer, avoiding heat accumulation on the periphery of the transformer module 1 and causing the working environment temperature to rise, thus improving the controllability of the working environment temperature of the transformer module 1.

[0031] Preferably, the transformer module 1 refers to the core structure of the transformer component, which mainly includes a primary winding, a secondary winding, and an iron core. The primary and secondary windings are wound on both sides of the iron core, respectively. Through the principle of electromagnetic induction, the magnetic field generated by the current in the primary winding induces a current in the secondary winding within the iron core. Specifically, the transformer module 1 can change according to the output current load, thereby adapting to different voltage requirements for welding. Specifically, the transformer module 1 is a functional element that realizes the transformer function. It does not include a shell structure that encloses the functional element. It is composed of several existing functional units. The heat generated when the functional units are working is directly diffused in the upper cavity 22. That is, the outer shell of the transformer equipment defined by the transformer module 1 is the welding machine shell 2. Therefore, the heat generated when the transformer module 1 is working is diffused directly in the upper cavity 22. It does not have a shell structure itself and will not hinder the diffusion of heat.

[0032] Preferably, the welding machine housing 2 is divided into an upper cavity 22 and a lower cavity 23 by a partition 21. More preferably, a conical top shell 24 is provided at the top of the upper cavity 22. Specifically, the conical top shell 24 can divert the heat dissipation airflow from top to bottom, thereby allowing the heat dissipation airflow to flow into the annular gap quickly and effectively, efficiently carrying away the heat transferred to the annular gap by the active heat transfer plate 6. Preferably, the transformer module 1 is installed in the upper cavity 22 via a connecting plate 25. More preferably, miniature circulating fans 26 capable of driving airflow to circulate in the upper cavity 22 are arranged side by side on the connecting plate 25. Preferably, a connecting support rod 27 capable of positioning its relative position to the guide shroud 3 is provided on the outer side of the welding machine housing 2. Preferably, a welding machine module 7 electrically connected to the transformer module 1 via a wire passing through the partition 21 is installed in the lower cavity 23. Preferably, the active heat transfer plate 6 is embedded in the cavity wall of the upper section cavity 22 in a manner that allows for heat transfer and cooling of the circulating airflow driven by the micro-circulating fan 26. Preferably, a wire for connecting the transformer module 1 to an external power supply is passed through the connecting rod 27. The micro-circulating fan 26 provided in this application can drive the gas circulation flow in the upper section container 22, so that the heat diffused by the transformer module 1 in the container can be forced to accelerate during the gas circulation flow, thereby enabling the heat to come into contact with the active heat transfer plate 6 more quickly and fully during the airflow movement, so that the active heat transfer plate 6 can effectively remove the heat in the circulating gas to maintain the working temperature state in the upper section cavity 22. The conical top shell 24 provided in this application can divert the input guide shroud 3 so that the airflow can effectively flow into the annular gap, avoiding obstruction of the downward airflow output by the blowing mechanism 5 directly above the welding machine housing 2.

[0033] Preferably, the movable support 4 includes a lifting main column 41, a track ring 42, a translation mechanism 43, a drive mechanism 44, a lifting auxiliary rod 45, and a mounting platform 46. Preferably, the track ring 42 is suspended and supported by multiple lifting main columns 41 spaced apart on the same circumference. More preferably, the translation mechanism 43 has both ends slidably connected to the inner ring surface of the track ring 42 in a manner that coincides with the radial direction of the track ring 42. Preferably, the moving end of the translation mechanism 43 is connected to the mounting platform 46 located below the track ring 42 via the lifting auxiliary rod 45. More preferably, a drive mechanism 44 is also provided on the translation mechanism 43 to drive it to deflect within the track ring 42. The lifting main column and lifting auxiliary rod 45 provided in this application can cooperate to adjust the suspension height of the welding module 7 as needed to adapt to the welding processing of workpieces of various sizes. The track ring 42 provided in this application can drive the translation mechanism 43 to rotate. Under the drive of the drive mechanism 44, the welding machine module 7 follows the translation mechanism 43 and rotates around the center within the ring surface defined by the track ring 42, enabling the welding machine module 7 to move in an arc. Furthermore, when the translation mechanism 43 changes the radius of its arc, the translation mechanism 43 can drive the welding machine module 7 to translate radially. The cooperation between the track ring 42 and the translation mechanism 43 can limit the positioning of irregular arc paths during the rotation process of the welding machine module 7 as the radius of the arc continuously changes, thereby realizing the welding treatment of different complex arc welds.

[0034] Preferably, a support base plate 411 is also provided at the lower axial end of the lifting main column 41. Preferably, a rail groove 421 for connecting with the translation mechanism 43 is provided on the inner ring surface of the track ring 42. Preferably, an external toothed ring 422 capable of meshing with the drive mechanism 44 is also provided on the outer ring surface of the track ring 42. Preferably, the translation mechanism 43 includes a guide groove 431, a rotating screw 432, a translation block 433, a translation drive unit 434, and a curved slider 435. Preferably, the rotating screw 432 is rotatably inserted into the cavity of the guide groove 431. More preferably, one end of the rotating screw 432 is drively connected to the translation drive unit 434 embedded in the guide groove 431. Preferably, the translation block 433 is threaded onto the rod of the rotating screw 432. Specifically, the translation block 433 partially engages in the cavity of the guide groove 431, thereby using the guide groove 431 to restrict the movable direction of the translation block 433, thus limiting the translation block 433 to be able to translate along the slotting direction of the guide groove 431 under the drive of the rotating screw 432 that rotates around the axis. Preferably, both ends of the guide groove 431 are connected to curved sliders 435 that can be mounted in the track groove 421. More preferably, the curved sliders 435 have rollers embedded on the curved surface within the track groove 421, so that the curved sliders 435 can slide more smoothly in the track groove 421. Preferably, the drive mechanism 44 includes a mounting block 441 mounted on the top surface of the guide groove 431, a deflection drive motor 442 embedded in the mounting block 441, and a gear 443 connected to the motion output shaft of the deflection drive motor 442. More preferably, the gear 443 meshes with the external gear ring 422.

[0035] Preferably, the mounting platform 46 is connected to the area directly below the translation block 433 via a lifting auxiliary rod 45. Preferably, a flow guide shroud 3 is embedded through the platform body of the mounting platform 46. Preferably, an air blowing mechanism 5 capable of delivering cooling airflow into the flow guide shroud 3 is supported on the mounting platform 46.

[0036] Preferably, the air guide fan 51 of the air blowing mechanism 5 is mounted directly above the air guide shroud 3 via a support frame 52.

[0037] Preferably, the active heat transfer plate 6 can use existing semiconductor heat exchange plates, which can controllably change the temperature of the heat absorption surface and the heat release surface of the plate, thereby transferring heat in a directional and efficient manner.

[0038] Preferably, the welding module 7 includes a rectifier, a filter, and a welding head. While the transformer module 1 converts the input AC power into low-voltage DC power, the rectifier converts the alternating current into DC current. The filter removes the AC component from the pulsating DC power after rectification, making the output DC power smoother. Finally, the electrical energy converted by the transformer and rectifier and filtered by the filter is transmitted to the welding head through electrical connecting wires to perform welding processing at the welding station.

[0039] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A multifunctional arc welding device, comprising a transformer module (1) capable of converting input AC power, the transformer module (1) being installed within a welding machine housing (2), characterized in that, The welding machine housing (2) is also fitted with a flow guide (3) that can limit the flow direction of heat dissipation airflow. Both the welding machine housing (2) and the flow guide (3) can be detachably mounted on a movable bracket (4). The movable bracket (4) also supports an air blowing mechanism (5) that can deliver heat dissipation airflow into the annular gap defined by the welding machine housing (2) and the flow guide (3); An active heat transfer plate (6) is embedded on the side wall of the welding machine housing (2), and a welding machine module (7) is also provided inside the welding machine housing (2) below the transformer module (1) and electrically connected to the transformer module (1).

2. The multifunctional arc welding equipment as described in claim 1, characterized in that, The welding machine housing (2) is divided into an upper cavity (22) and a lower cavity (23) by a partition (21), and a conical top shell (24) is provided on the top of the upper cavity (22). The transformer module (1) is installed in the upper cavity (22) via a connecting plate (25). Miniature circulating fans (26) capable of driving airflow to circulate in the upper cavity (22) are arranged side by side on the connecting platform (25).

3. The multifunctional arc welding equipment as described in claim 2, characterized in that, A connecting rod (27) is provided on the outer side of the welding machine housing (2) to position it relative to the flow guide (3). The welding module (7) is installed in the lower cavity (23) and is electrically connected to the transformer module (1) through a wire passing through the partition (21); The active heat transfer plate (6) is embedded in the cavity wall of the upper cavity (22) in a manner that enables heat transfer and cooling of the circulating airflow driven by the micro circulating fan (26).

4. The multifunctional arc welding equipment as described in claim 3, characterized in that, The movable support (4) includes a lifting main column (41), a track ring (42), a translation mechanism (43), a drive mechanism (44), a lifting auxiliary rod (45), and a mounting platform (46), wherein, The track ring (42) is suspended and supported by multiple lifting main columns (41) spaced apart on the same circumference, and the translation mechanism (43) slides its two ends onto the inner ring surface of the track ring (42) in a manner that coincides with the radial direction of the track ring (42). The moving end of the translation mechanism (43) is connected to the mounting platform (46) located below the track ring (42) via the lifting auxiliary rod (45), and the translation mechanism (43) is also provided with a driving mechanism (44) that drives it to deflect in the track ring (42).

5. The multifunctional arc welding equipment as described in claim 4, characterized in that, A track groove (421) for connecting with the translation mechanism (43) is provided on the inner ring surface of the track ring (42), and an outer toothed ring (422) for meshing with the drive mechanism (44) is also provided on the outer ring surface of the track ring (42).

6. The multifunctional arc welding equipment as described in claim 5, characterized in that, The translation mechanism (43) includes a guide groove (431), a rotating screw (432), a translation block (433), a translation drive unit (434), and a curved surface slider (435), wherein, The rotating screw (432) is rotatably inserted into the cavity of the guide groove (431), and one end of the rotating screw (432) is connected to the translation drive unit (434) embedded in the guide groove (431). The translation block (433) is threaded onto the rod body of the rotating screw (432), and the translation block (433) is partially engaged in the groove cavity of the guide groove (431); Both ends of the guide groove (431) are connected to curved sliders (435) that can be tracked in the groove (421).

7. The multifunctional arc welding equipment as described in claim 6, characterized in that, The drive mechanism (44) includes a mounting block (441) mounted on the top surface of the guide groove (431), a deflection drive motor (442) embedded in the mounting block (441), and a gear (443) connected to the motion output shaft of the deflection drive motor (442). The gear (443) meshes with the external gear ring (422).

8. The multifunctional arc welding equipment as described in claim 7, characterized in that, The mounting platform (46) is connected directly below the translation block (433) via the lifting auxiliary rod (45). The air guide shroud (3) is embedded through the platform of the mounting platform (46), and the air blowing mechanism (5) is supported on the mounting platform (46) to deliver heat dissipation airflow into the air guide shroud (3).

9. The multifunctional arc welding equipment as described in claim 8, characterized in that, The air guide fan (51) of the air blowing mechanism (5) is mounted directly above the air guide shroud (3) via a support frame (52).

10. The multifunctional arc welding equipment as described in claim 9, characterized in that, A support base plate (411) is also provided at the lower axial end of the lifting main column (41).

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