A combination argon arc welding and submerged arc welding apparatus

Abstract

The utility model discloses a kind of argon arc welding and submerged arc welding combined welding equipment, it is related to welding equipment technical field, including equipment main body, gas control system, electrical control system, argon arc welding power supply system, submerged arc welding power supply system, flux recovery system are connected through cable and PLC control system;Argon arc welding power supply system includes argon arc welding torch adjusting mechanism and be set on the wire feeding mechanism and argon arc welding torch of argon arc welding torch adjusting mechanism, and submerged arc welding power supply system includes submerged arc welding torch adjusting mechanism and be set on the wire feeding mechanism and submerged arc welding torch of submerged arc welding torch adjusting mechanism.The utility model is connected into a whole through cable and PLC control system between each system, the installation and overhaul of equipment are convenient;The scheme can realize different welding mode on a device, argon arc welding automatic base welding and submerged arc welding filling cap surface welding.Workpiece is clamped once, then continuous base filling cap surface welding, and the function of not needing disassembly in the middle.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and more specifically to the field of a combined argon arc welding and submerged arc welding equipment. Background Technology

[0002] Welding equipment refers to all tools, machines, devices, and accessories used to permanently join materials (usually metals or thermoplastics). Its core principle is to achieve atomic or molecular bonding at the joint between two workpieces through heating, pressurization, or both. Welding equipment is an indispensable tool in everything from traditional manufacturing to cutting-edge technology. From simple AC manual arc welding machines to highly integrated laser welding robots, the choice depends entirely on the specific application, quality requirements, and economic considerations. Understanding the working principles and characteristics of different equipment is key to making the right choice.

[0003] Generally, welding requires multiple steps, including root pass, fill pass, and cap pass welding. Manual welding is inefficient and produces inconsistent quality. Combined welding equipment (also known as composite welding equipment) refers to an advanced manufacturing system that integrates two or more different welding processes (heat sources) into the same processing system, sharing the same control system and motion actuators, allowing them to act simultaneously or sequentially on the same welding area to jointly complete a weld. Existing combined welding technologies include the following: Patent publication number CN104476039A, entitled "Rear Axle Assembly Welding Equipment," discloses the following: A rear axle assembly welding device, comprising: a frame; two sets of welding torches mounted on the frame for welding the rear axle assembly; a pressing mechanism fixed to the frame, which rotatably fixes the rear axle assembly within the welding range of the welding torches; a transmission mechanism, a rotatable component fixed to the frame, whose rotating end drives the rear axle assembly to rotate; and a control system connected to the welding torches for controlling the welding and stopping of the two sets of welding torches. This structure enables automatic welding of rear axle assemblies with weld points aligned to the same plane, replacing manual welding with automated welding and significantly reducing the labor intensity of welding tricycle rear axle assemblies.

[0004] The patent with publication number CN113695801A and patent title "A Combined Jumper Welding Equipment" discloses the following: It relates to the field of battery module processing equipment technology, including: a frame, a horizontal jumper preparation device, a vertical jumper preparation device, a material conveying mechanism, a lifting handle, and a welding device. The horizontal jumper preparation device, the vertical jumper preparation device, the lifting handle, and the welding device are all mounted on the frame. The lifting handle is used to grasp battery modules. The horizontal jumper preparation device is used to prepare horizontal jumpers and can move the prepared horizontal jumpers above the overlapping welding area and make the horizontal jumpers contact the first interconnecting strip on the battery module. The vertical jumper preparation device is used to prepare vertical jumpers and move the vertical jumpers below the overlapping welding area. The lifting handle grasps the vertical jumpers below the overlapping welding area and makes the vertical jumpers contact the second interconnecting strip on the battery module. The welding device can weld the vertical jumpers to the second interconnecting strip and weld the horizontal jumpers to the first interconnecting strip. The combined jumper welding equipment provided by this invention has high processing efficiency.

[0005] The combined welding disclosed in the above patents is still based on a single welding method. A single welding method is difficult to balance the penetration of the root pass and the efficiency of the fill and cover passes. Traditional equipment replacement procedures are complex, and two machines are generally used to complete the welding process, resulting in insufficient automation. Utility Model Content

[0006] The purpose of this utility model is to provide a combined argon arc welding and submerged arc welding equipment in order to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model provides a combined argon arc welding and submerged arc welding equipment, including a main body, a gas control system, an electrical control system, an argon arc welding power supply system, a submerged arc welding power supply system, a flux recovery system, and a PLC control system. The main body, the gas control system, the electrical control system, the argon arc welding power supply system, the submerged arc welding power supply system, and the flux recovery system are all connected to the PLC control system via cables. The argon arc welding power supply system includes an argon arc welding torch adjustment mechanism, a wire feeding mechanism and an argon arc welding torch mounted on the argon arc welding torch adjustment mechanism, and a submerged arc welding power supply system includes a submerged arc welding torch adjustment mechanism, a wire feeding mechanism and a submerged arc welding torch mounted on the submerged arc welding torch adjustment mechanism.

[0008] Specifically, the various systems are connected as a whole via cables and a PLC control system, facilitating equipment installation and maintenance. During welding operations, the TIG and submerged arc welding torches can be manually fine-tuned in all directions to ensure they are always positioned correctly at the weld seam. This solution enables automatic root pass welding and fill / cover pass welding for different welding methods on a single machine. It allows for workpiece clamping only once, followed by continuous root pass, fill / cover pass welding without the need for disassembly.

[0009] In one embodiment, the main body of the equipment includes a bed, a rotating head disposed at one end of the bed, a tailstock clamping mechanism slidably disposed at the other end of the bed, a pneumatic bracket assembly located between the rotating head and the tailstock clamping mechanism, an electric chuck disposed at the rotating head, a clamping fixture disposed on the tailstock clamping mechanism, a crossbeam guide rail mechanism disposed on one side of the bed, and both the argon arc welding torch adjustment mechanism and the submerged arc welding torch adjustment mechanism are slidably disposed on the crossbeam guide rail mechanism. In one embodiment, the workpiece to be welded is placed on a pneumatic bracket assembly and clamped by electric chucks and clamping fixtures at both ends, with the two pneumatic bracket assemblies located in the middle of the bed.

[0010] Specifically, the bed adopts a horizontal welded structure, undergoes annealing stress relief treatment, has good rigidity and will not deform during long-term use, and is powder-coated after rust removal treatment.

[0011] In one embodiment, the beam guide mechanism includes a beam, a linear guide rail disposed on the beam along its length, and a linear rack disposed on the beam along its length, with the linear guide rail and the linear rack arranged side by side.

[0012] Specifically, the beam guide mechanism is mainly used for the high-speed positioning or return of the welding torch to its original position; it adopts linear guide rail guidance, AC servo motor drive, and gear and rack transmission.

[0013] In one embodiment, the argon arc welding torch adjustment mechanism includes a first base that is slidably engaged with a linear guide rail, a first servo motor disposed on the first base, a first gear disposed at the output end of the first servo motor that meshes with a linear rack, and an argon arc welding torch adjustment assembly disposed on the first base, wherein the argon arc welding torch is disposed on the argon arc welding torch adjustment assembly.

[0014] The argon arc welding torch adjustment assembly includes a pneumatic advance and retreat mechanism, an electric lifting mechanism, a torch rotation mechanism, a manual fine-tuning mechanism, a torch oscillation mechanism, and a wire feeding mechanism.

[0015] In one embodiment, the submerged arc welding torch adjustment mechanism includes a second base that is slidably engaged with a linear guide rail, a second servo motor disposed on the second base, a second gear disposed at the output end of the second servo motor that meshes with a linear rack, and a submerged arc welding torch adjustment assembly disposed on a base, wherein the submerged arc welding torch is disposed on the argon arc welding torch adjustment assembly. The submerged arc welding torch adjustment assembly includes a pneumatic advance and retreat mechanism, an electric lifting mechanism, a manual fine-tuning mechanism, a torch oscillation mechanism, a flux recovery mechanism, a flux funnel, and a wire feeding mechanism.

[0016] In one embodiment, the rotary head is driven by a servo motor, and the electric chuck mounted on the rotary head is an electric three-jaw chuck. The electric three-jaw chuck is driven by a servo motor installed inside the rotary head, and the output shaft of the servo motor is connected to the electric three-jaw chuck via a coupling.

[0017] In one embodiment, the tailstock clamping mechanism includes a base slidably disposed on the bed, a clamping fixture disposed on the base, and a cylinder disposed within the base for driving the clamping fixture.

[0018] Specifically, the entire tailstock clamping mechanism can move on the bed.

[0019] In one embodiment, the pneumatic bracket assembly includes an arc-shaped bracket body and a cylinder disposed at the center of the bottom of the arc-shaped bracket body. The bottom of the cylinder is fixed to the bed, and each arc-shaped bracket body is arranged longitudinally.

[0020] In one embodiment, the system further includes an optical axis guide mechanism for guiding the lifting and lowering of the arc-shaped bracket body. Each optical axis guide mechanism includes two guide rods fixedly disposed on both sides of the bottom of the corresponding arc-shaped bracket body and two guide holes disposed on the bed that cooperate with the two guide rods respectively.

[0021] Specifically, the pneumatic bracket assembly is driven by a cylinder and guided by two optical axes. It features high output, smooth movement, and high positioning accuracy. It is mainly used to support workpieces and facilitate the loading and unloading of workpieces.

[0022] The process is as follows: S1. Place the workpiece on the bracket using a lifting device; S2. Raise the arc-shaped bracket body to a suitable height, rotate the three-jaw chuck at the machine head and the tailstock clamping mechanism to clamp the workpiece, and then lower the bracket to the lowest position. S3. Move the TIG welding torch mechanism to align the TIG welding torch with the weld seam, set the TIG welding process parameters, and click "Start Welding" on the operation panel. The workpiece rotates with the three-jaw chuck, and the welding torch begins welding. After welding is completed, the welding torch automatically rises and moves 300mm to the left to make room for the submerged arc welding torch to weld. S4. Move the submerged arc welding torch mechanism to align the torch with the weld seam. Set the submerged arc welding process parameters and click "Start Welding" on the control panel. Depending on the workpiece thickness, one layer or multiple layers can be welded. During the welding process, a flux recovery device automatically recovers the flux, and manual cleaning of the slag is required. After welding is complete, the torch automatically rises and moves 300mm to the right, making room for the argon arc welding torch. S5. Use a lifting device to lift the welded workpiece off the equipment and place it in a suitable position for the next process; S6. Weld the next workpiece following the steps above.

[0023] The beneficial effects of this utility model are as follows: 1. This utility model has a reasonable design, with all systems connected as a whole via cables and a PLC control system, facilitating equipment installation and maintenance. In welding projects, the TIG and submerged arc welding torches can be manually fine-tuned in all directions to ensure they are always in the appropriate position for the weld. This solution can achieve automatic root pass welding and fill / cover pass welding for different welding methods on a single machine. It allows for workpiece clamping only once, followed by continuous root pass, fill / cover pass welding without the need for disassembly.

[0024] 2. The bed adopts a horizontal welded structure, which is annealed to relieve stress, has good rigidity and will not deform during long-term use. The surface is powder-coated after rust removal treatment.

[0025] 3. The pneumatic bracket assembly is driven by a cylinder and guided by two optical shafts. It features high output, smooth movement, and high positioning accuracy. It is mainly used to support workpieces and facilitate the loading and unloading of workpieces. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Top view; Figure 3 yes Figure 1 The left view; Reference numerals: 1. Rotating head; 2. Pneumatic support assembly; 3. Bed; 4. Tailstock clamping mechanism; 5. Submerged arc welding torch adjustment mechanism; 6. Workpiece; 7. Argon arc welding torch adjustment mechanism; 8. Crossbeam guide rail mechanism. Detailed Implementation

[0028] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the workpiece of this utility model is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Example 1 like Figures 1 to 3 As shown in the figure, this embodiment provides a combined argon arc welding and submerged arc welding equipment, including a main body, a gas control system, an electrical control system, an argon arc welding power supply system, a submerged arc welding power supply system, a flux recovery system, and a PLC control system. The main body, the gas control system, the electrical control system, the argon arc welding power supply system, the submerged arc welding power supply system, and the flux recovery system are all connected to the PLC control system via cables. The argon arc welding power supply system includes an argon arc welding torch adjustment mechanism 7, a wire feeding mechanism and an argon arc welding torch disposed on the argon arc welding torch adjustment mechanism 7, and a submerged arc welding power supply system includes a submerged arc welding torch adjustment mechanism 5, a wire feeding mechanism and a submerged arc welding torch disposed on the submerged arc welding torch adjustment mechanism 5.

[0033] Specifically, the various systems are connected as a whole via cables and a PLC control system, facilitating equipment installation and maintenance. During welding operations, the TIG and submerged arc welding torches can be manually fine-tuned in all directions to ensure they are always positioned correctly at the weld seam. This solution enables automatic root pass welding and fill / cover pass welding for different welding methods on a single machine. It allows for single-clamping of workpiece 6, followed by continuous root pass, fill / cover pass welding without the need for disassembly.

[0034] Example 2 like Figures 1 to 3 As shown in the figure, this embodiment provides a combined argon arc welding and submerged arc welding equipment, including a main body, a gas control system, an electrical control system, an argon arc welding power supply system, a submerged arc welding power supply system, a flux recovery system, and a PLC control system. The main body, the gas control system, the electrical control system, the argon arc welding power supply system, the submerged arc welding power supply system, and the flux recovery system are all connected to the PLC control system via cables. The argon arc welding power supply system includes an argon arc welding torch adjustment mechanism 7, a wire feeding mechanism and an argon arc welding torch disposed on the argon arc welding torch adjustment mechanism 7, and a submerged arc welding power supply system includes a submerged arc welding torch adjustment mechanism 5, a wire feeding mechanism and a submerged arc welding torch disposed on the submerged arc welding torch adjustment mechanism 5.

[0035] The main body of the equipment includes a bed 3, a rotating head 1 set at one end of the bed 3, a tailstock clamping mechanism 4 slidably set at the other end of the bed 3, a pneumatic bracket assembly 2 located between the rotating head 1 and the tailstock clamping mechanism 4, an electric chuck set at the rotating head 1, a clamping fixture set on the tailstock clamping mechanism 4, a crossbeam guide rail mechanism 8 set on one side of the bed 3, an argon arc welding torch adjustment mechanism 7, and a submerged arc welding torch adjustment mechanism 5, all of which are slidably set on the crossbeam guide rail mechanism 8. The workpiece 6 to be welded is placed on the pneumatic bracket assembly 2 and clamped by two electric chucks at both ends. The two pneumatic bracket assemblies 2 are located in the middle of the bed 3.

[0036] Specifically, bed 3 adopts a horizontal welded structure, which is annealed to relieve stress, has good rigidity and will not deform during long-term use, and is powder-coated after rust removal.

[0037] Example 3 This embodiment is a further optimization based on embodiment 2, specifically: The beam guide mechanism 8 includes a beam, a linear guide rail arranged on the beam along its length, and a linear rack arranged on the beam along its length. The linear guide rail and the linear rack are arranged side by side.

[0038] Specifically, the beam guide mechanism 8 is mainly used for the high-speed positioning or return of the welding torch to its original position; it adopts linear guide rail guidance, AC servo motor drive, and gear and rack transmission.

[0039] Example 4 This embodiment is a further optimization based on embodiment 3, specifically: The argon arc welding torch adjustment mechanism 7 includes a first base that slides and engages with a linear guide rail, a first servo motor disposed on the first base, a first gear that meshes with a linear rack disposed at the output end of the first servo motor, and an argon arc welding torch adjustment assembly disposed on the first base. The argon arc welding torch is disposed on the argon arc welding torch adjustment assembly.

[0040] The argon arc welding torch adjustment assembly includes a pneumatic advance and retreat mechanism, an electric lifting mechanism, a torch rotation mechanism, a manual fine-tuning mechanism, a torch oscillation mechanism, and a wire feeding mechanism.

[0041] Example 5 This embodiment is a further optimization based on embodiment 3, specifically: The submerged arc welding torch adjustment mechanism 5 includes a second base that slides and engages with a linear guide rail, a second servo motor disposed on the second base, a second gear disposed at the output end of the second servo motor that meshes with a linear rack, and a submerged arc welding torch adjustment assembly disposed on the base. The submerged arc welding torch is disposed on the argon arc welding torch adjustment assembly. The submerged arc welding torch adjustment assembly includes a pneumatic advance and retreat mechanism, an electric lifting mechanism, a manual fine-tuning mechanism, a torch oscillation mechanism, a flux recovery mechanism, a flux funnel, and a wire feeding mechanism.

[0042] Example 6 This embodiment is a further optimization based on embodiment 3, specifically: The rotating head 1 is driven by a servo motor. The electric chuck installed on the rotating head 1 is an electric three-jaw chuck. The electric three-jaw chuck is driven by a servo motor installed inside the rotating head 1. The output shaft of the servo motor is connected to the electric three-jaw chuck through a coupling.

[0043] The tailstock clamping mechanism 4 includes a base that is slidably mounted on the bed 3, a clamping fixture mounted on the base, and a cylinder mounted inside the base for driving the clamping fixture.

[0044] Specifically, the entire tailstock clamping mechanism 4 can move on the bed 3.

[0045] Example 7 This embodiment is a further optimization based on embodiment 6, specifically: The pneumatic bracket assembly 2 includes an arc-shaped bracket body and a cylinder located at the center of the bottom of the arc-shaped bracket body. The bottom of the cylinder is fixed on the bed 3, and each arc-shaped bracket body is arranged longitudinally.

[0046] It also includes optical axis guide mechanisms for guiding the lifting and lowering of the arc-shaped bracket body. Each optical axis guide mechanism includes two guide rods fixedly installed on both sides of the bottom of the corresponding arc-shaped bracket body and two guide holes installed on the bed 3 that cooperate with the two guide rods respectively.

[0047] Specifically, the pneumatic bracket assembly 2 is driven by a cylinder and guided by two optical axes. It features high output, smooth movement, and high positioning accuracy. It is mainly used to support the workpiece 6 and facilitate the loading and unloading of the workpiece 6.

[0048] The process is as follows: S1. Use a lifting device to place workpiece 6 on the bracket; S2. Raise the arc-shaped bracket body to a suitable height, rotate the three-jaw chuck at the machine head 1 and the tailstock clamping mechanism 4 to clamp the workpiece 6, and then lower the bracket to the lowest position. S3. Move the TIG welding torch mechanism to align the TIG welding torch with the weld seam, set the TIG welding process parameters, and click "Start Welding" on the operation panel. The workpiece 6 rotates with the three-jaw chuck, and the welding torch begins welding. After welding is completed, the welding torch automatically rises and moves 300mm to the left to make room for the submerged arc welding torch to weld. S4. Move the submerged arc welding torch mechanism to align the torch with the weld seam. Set the submerged arc welding process parameters and click "Start Welding" on the operation panel. Depending on the thickness of workpiece 6, one layer or multiple layers can be welded. During the welding process, a flux recovery device automatically recovers the flux, and manual cleaning of the slag is required. After welding is completed, the torch automatically rises and moves 300mm to the right, leaving space for the argon arc welding torch to weld. S5. Use a lifting device to lift the welded workpiece 6 off the equipment and place it in a suitable position for the next process; S6. Weld the next workpiece 6 according to the above steps.

Claims

1. A combined argon arc welding and submerged arc welding equipment, characterized in that, The system includes a main body, a pneumatic control system, an electrical control system, an argon arc welding power supply system, a submerged arc welding power supply system, a flux recovery system, and a PLC control system. The main body, the pneumatic control system, the electrical control system, the argon arc welding power supply system, the submerged arc welding power supply system, and the flux recovery system are all connected to the PLC control system via cables. The argon arc welding power supply system includes an argon arc welding torch adjustment mechanism (7) and a wire feeding mechanism and an argon arc welding torch disposed on the argon arc welding torch adjustment mechanism (7). The submerged arc welding power supply system includes a submerged arc welding torch adjustment mechanism (5) and a wire feeding mechanism and a submerged arc welding torch disposed on the submerged arc welding torch adjustment mechanism (5).

2. The combined argon arc welding and submerged arc welding equipment according to claim 1, characterized in that, The main body of the equipment includes a bed (3), a rotating head (1) located at one end of the bed (3), a tailstock clamping mechanism (4) slidably located at the other end of the bed (3), a pneumatic bracket assembly (2) located between the rotating head (1) and the tailstock clamping mechanism (4), an electric chuck located on the rotating head (1), a clamping clamp located on the tailstock clamping mechanism (4), and a crossbeam guide rail mechanism (8) located on one side of the bed (3). The argon arc welding torch adjustment mechanism (7) and the submerged arc welding torch adjustment mechanism (5) are both slidably located on the crossbeam guide rail mechanism (8).

3. The combined argon arc welding and submerged arc welding equipment according to claim 2, characterized in that, The workpiece (6) to be welded is placed on the pneumatic bracket assembly (2) and clamped by the electric chucks and the clamping fixtures at both ends. The two pneumatic bracket assemblies (2) are located in the middle of the bed (3).

4. The combined argon arc welding and submerged arc welding equipment according to claim 2, characterized in that, The beam guide rail mechanism (8) includes a beam, a linear guide rail arranged on the beam along the length direction, and a linear rack arranged on the beam along the length direction, wherein the linear guide rail and the linear rack are arranged side by side.

5. The combined argon arc welding and submerged arc welding equipment according to claim 4, characterized in that, The argon arc welding torch adjustment mechanism (7) includes a first base that slides and engages with the linear guide rail, a first servo motor disposed on the first base, a first gear disposed at the output end of the first servo motor that meshes with the linear rack, and an argon arc welding torch adjustment assembly disposed on the first base. The argon arc welding torch is disposed on the argon arc welding torch adjustment assembly. The argon arc welding torch adjustment assembly includes a pneumatic advance and retreat mechanism, an electric lifting mechanism, a torch rotation mechanism, a manual fine-tuning mechanism, a torch oscillation mechanism, and a wire feeding mechanism.

6. The combined argon arc welding and submerged arc welding equipment according to claim 4, characterized in that, The submerged arc welding torch adjustment mechanism (5) includes a second base that slides and engages with the linear guide rail, a second servo motor disposed on the second base, a second gear disposed at the output end of the second servo motor that meshes with the linear rack, and a submerged arc welding torch adjustment assembly disposed on the human base. The submerged arc welding torch is disposed on the argon arc welding torch adjustment assembly. The submerged arc welding torch adjustment assembly includes a pneumatic advance and retreat mechanism, an electric lifting mechanism, a manual fine-tuning mechanism, a torch oscillation mechanism, a flux recovery mechanism, a flux funnel, and a wire feeding mechanism.

7. The combined argon arc welding and submerged arc welding equipment according to claim 2, characterized in that, The rotating head (1) is driven by a servo motor. The electric chuck installed on the rotating head (1) is an electric three-jaw chuck. The electric three-jaw chuck is driven by a servo motor installed in the rotating head (1). The output shaft of the servo motor is connected to the electric three-jaw chuck through a coupling.

8. The combined argon arc welding and submerged arc welding equipment according to claim 2, characterized in that, The tailstock clamping mechanism (4) includes a base slidably disposed on the bed (3), a clamping fixture disposed on the base, and a cylinder disposed in the base for driving the clamping fixture.

9. The combined argon arc welding and submerged arc welding equipment according to claim 2, characterized in that, The pneumatic bracket assembly (2) includes an arc-shaped bracket body and a cylinder located at the center of the bottom of the arc-shaped bracket body. The bottom of the cylinder is fixed on the bed (3), and each arc-shaped bracket body is arranged longitudinally.

10. The combined argon arc welding and submerged arc welding equipment according to claim 9, characterized in that, It also includes an optical axis guide mechanism for guiding the lifting and lowering of the arc-shaped bracket body. Each optical axis guide mechanism includes two guide rods fixedly arranged on both sides of the bottom of the corresponding arc-shaped bracket body and two guide holes arranged on the bed (3) that cooperate with the two guide rods respectively.

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