A combined welding apparatus and welding method

Abstract

The application relates to the technical field of welding equipment, and discloses a combined welding equipment and a welding processing method, which adopts a mobile single body, can be used in combination with large or inconveniently carried target pieces to be welded to form single use or combined use, guarantees simultaneous use modes of welding operation, is better in practicability, and comprises a laser welding device, further comprises a combined travel structure, the combined travel structure comprises a main wheel frame and an auxiliary wheel frame, the main wheel frame and the auxiliary wheel frame are both provided with power wide wheels, parallel telescopic connecting pieces are arranged between the main wheel frame and the auxiliary wheel frame, a mounting circular table is arranged on the parallel telescopic connecting pieces, the laser welding device comprises a mechanical arm and a welding head, the mechanical arm is mounted on the mounting circular table, the welding head is mounted on an execution end of the mechanical arm, a main clamping frame and an auxiliary clamping frame are rotatably arranged on the main wheel frame and the auxiliary wheel frame respectively, the main clamping frame and the auxiliary clamping frame are both provided with lifting clamping assemblies, and first servo motors are arranged on the main wheel frame and the auxiliary wheel frame.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically to a combined welding equipment and welding processing method. Background Technology

[0002] As is well known, welding is a process that uses heating or pressure to achieve atomic bonding between two sides or two components to form a permanent connection. Therefore, the ultimate goal of welding is to achieve the combination of two sides or two components. To facilitate actual welding operations, we propose a combined welding equipment and welding processing method.

[0003] A search revealed that Chinese patent application CN202311621382.5 discloses a laser welding device for a combination of a long cylindrical rod and an end cap. The device is broadly described as including two adjacent welding fixtures, a first welding fixture and a second welding fixture. Both fixtures include a tilting cylinder connected to a fixed plate, which tilts the rod in a vertical plane. A first clamping plate is located on one side of the fixed plate, and a second clamping plate is located on the other side. Both clamping plates can move towards or away from the fixed plate. In use, the first welding fixture (VI) is moved to the loading position via a first rodless cylinder, with the long cylindrical rod's hole facing upwards. A limiting top plate is raised by a top plate cylinder. The long cylindrical rod is then manually lifted... The round rod workpiece is placed into the elongated rod hole of the first welding fixture VI. The first clamping plate cylinder and the second clamping plate cylinder respectively drive the first clamping plate and the second clamping plate to move towards the fixed plate, pressing the elongated rod workpiece. The flipping cylinder of the first welding fixture VI drives the first welding fixture VI to rotate 180°. The end cap workpiece is placed between the fixed plate and the first clamping plate, and the end cap workpiece is placed between the fixed plate and the second clamping plate. The end cap workpieces are placed into the end cap slots of the first welding fixture VI. The first rodless cylinder drives the first welding fixture VI to move from the loading position to the welding position. The X-axis module II, Y-axis module III, and Z-axis module IV drive the laser welding device V to move to the first welding fixture VI for welding.

[0004] While the aforementioned existing technical solutions can achieve the combination welding of components, in actual operation, the workpiece to be welded needs to be lifted as a whole and placed on the welding station of the equipment in order to form a welding operation. If the overall size of the workpiece to be welded is large or inconvenient to move, it is difficult to form a welding operation. At the same time, in order to increase the welding operation area, the size of the equipment itself also needs to be enlarged, which will also increase the equipment cost. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a combined welding equipment and welding processing method. It adopts a mobile unit that can be used individually or in combination with large or inconveniently transported target parts to be welded, ensuring a wider range of usage modes and better practicality while ensuring welding operations.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined welding device, including a laser welding apparatus and a combined traveling structure, the combined traveling structure including a main wheel frame and an auxiliary wheel frame, both the main wheel frame and the auxiliary wheel frame being equipped with powered wide wheels, a parallel telescopic connector being installed between the main wheel frame and the auxiliary wheel frame, a mounting frustum being installed on the parallel telescopic connector, the laser welding apparatus including a robotic arm and a welding head, the robotic arm being installed on the mounting frustum, the welding head being installed on the execution end of the robotic arm, a main clamping frame and an auxiliary clamping frame being rotatably mounted on the main wheel frame and the auxiliary wheel frame respectively, both the main clamping frame and the auxiliary clamping frame being equipped with lifting clamping components, and a first servo motor being installed on both the main wheel frame and the auxiliary wheel frame, the two first servo motors being used for the rotation adjustment of the main clamping frame and the auxiliary clamping frame respectively.

[0007] Preferably, both lifting clamping assemblies include a lifting frame and an electric lifting rod. The two lifting frames are slidably connected to the main clamping frame and the auxiliary clamping frame, respectively. Stepped mounting tubes are fixedly connected to both the main clamping frame and the auxiliary clamping frame. The two electric lifting rods are respectively mounted on the two stepped mounting tubes. The lifting rods of the two electric lifting rods are respectively connected to the two lifting frames. A switching frame is rotatably connected to each of the two lifting frames. An elastic pin mechanism is provided between each of the two switching frames and the two lifting frames. A first clamping frame and a second clamping frame are rotatably connected to each of the two switching frames. An electric drive mechanism is installed on each of the two switching frames. The two electric drive mechanisms are respectively used for clamping drive of the two first clamping frames and also for clamping drive of the two second clamping frames.

[0008] Preferably, the elastic pin mechanism includes an external hanging ear, which is fixedly connected to the adjustment frame. A conical spring is fixedly connected to the external hanging ear, and an insertion pin is fixedly connected to the conical spring. The external hanging ear is provided with a through hole that matches the insertion pin, and the lifting frame is provided with multiple positioning slots that match the insertion pin.

[0009] Preferably, each of the two electric drive mechanisms includes a lead screw shaft and a second servo motor. The two lead screw shafts are rotatably connected to the two adjustment frames, and the two second servo motors are respectively mounted on the two adjustment frames. The output shafts of the two second servo motors are respectively connected to the two lead screw shafts. A synchronous drive cylinder is threaded onto each of the two lead screw shafts. The two synchronous drive cylinders are slidably connected to the two adjustment frames. A first drive rod and a second drive rod are hinged onto each of the two synchronous drive cylinders. The two first drive rods are respectively hinged to the two first clamping frames, and the two second drive rods are respectively hinged to the two second clamping frames.

[0010] Preferably, each of the two first clamping frames and the two second clamping frames has a central groove and multiple clamping holes. Each of the multiple clamping holes has a clamping post slidably connected to it. Each of the multiple clamping posts has a permanent magnet fixedly connected to it. Each of the two first clamping frames and the two second clamping frames has multiple mounting cylinders fixedly connected to it. Each of the multiple mounting cylinders has an electromagnet installed inside it. Each of the multiple electromagnets is matched with a multiple of the permanent magnets.

[0011] Preferably, the parallel telescopic connector includes two telescopic cylinders and two telescopic columns. Both telescopic cylinders are rotatably connected to the main wheel frame, and both telescopic columns are rotatably connected to the auxiliary wheel frame. A mounting plate is rotatably connected between the two telescopic cylinders, and an auxiliary plate is rotatably connected between the two telescopic columns. A mounting frame and an auxiliary frame are rotatably connected to the bottom ends of the mounting plate and the auxiliary plate, respectively. An electric drive rod is installed inside the mounting frame, and the drive rod of the electric drive rod is connected to the auxiliary frame. An electric adjusting rod is installed at the bottom end of one of the two telescopic cylinders, and the telescopic rod of the electric adjusting rod is connected to the mounting plate. Both telescopic cylinders are rotatably connected to the mounting frustum.

[0012] Preferably, each of the two power wide wheels includes a rolling wheel and a shaft frame. The two shaft frames are fixedly connected to the main wheel frame and the auxiliary wheel frame, respectively. The two rolling wheels are rotatably connected to the two shaft frames, respectively. A drive motor is installed in each of the two shaft frames, and the output shafts of the two drive motors are respectively connected to the two rolling wheels for transmission.

[0013] Preferably, both of the rolling wheels are provided with anti-slip ridges.

[0014] Preferably, both the main wheel frame and the auxiliary wheel frame are fixedly connected to an extension bracket, and the two first servo motors are respectively mounted on the two extension brackets.

[0015] A combined welding process includes the following steps:

[0016] S1. When using, adjust the lifting clamping assembly according to the specific structural form of the target part to be welded. During the adjustment process, control the relative position between the main wheel frame and the auxiliary wheel frame so that the two lifting clamping assemblies have a matching relative clamping position with the target part to be welded.

[0017] S2. After adjustment, the target part to be welded is positioned by the lifting clamping assembly. Then, the welding machine is installed on the welding head. When the welding machine is powered on, the welding head generates the welding output.

[0018] S3. The welding trajectory of the welding head relative to the target part is identified by the operation of the robotic arm. Then, the robotic arm controls the welding head to be positioned relative to the target part. Finally, the welding machine and the robotic arm are started simultaneously to perform the welding movement of the welding head and realize the welding operation of the target part.

[0019] Compared with the prior art, the present invention provides a combined welding equipment and welding processing method, which has the following beneficial effects:

[0020] (1) In this invention, by equipping a laser welding device, a functional structure for performing welding can be formed to ensure welding operation relative to the target part to be welded.

[0021] (2) In this invention, by designing a combined traveling structure, a mobile functional structure for the combined welding equipment can be formed, which facilitates the movement of the target part to be welded and the dragging of the target part to be welded, and facilitates the adjustment of the basic relative welding position of the target part to be welded.

[0022] (3) In this invention, the design of the lifting clamping component facilitates the relative clamping of the combined traveling structure with respect to the target part to be welded, and the clamping modes are more diverse and more practical. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0024] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0025] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the roller, shaft frame, and drive motor of the present invention.

[0026] Figure 4 For the present invention Figure 3 A magnified view of the structure at point B in the middle;

[0027] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the local structure at point C;

[0028] Figure 6 This is a three-dimensional structural diagram of the first clamping frame, the second clamping frame, and the first driving rod of the present invention.

[0029] Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the lifting frame, the shifting frame, and the first clamping frame of the present invention.

[0030] Figure 8 This is a three-dimensional structural diagram of the first clamping frame, the second clamping frame, and the first drive rod of the present invention from another angle.

[0031] Figure 9 This is a three-dimensional structural diagram of the invention viewed from below.

[0032] Figure 10 For the present invention Figure 9 A magnified schematic diagram of the local structure at point D;

[0033] Figure 11 This is a three-dimensional structural diagram of the adapter frame and external mounting ears of the present invention.

[0034] Figure 12 A three-dimensional structural schematic diagram of the corresponding clamping of welding plates for the two combined welding devices of the present invention;

[0035] Figure 13 A three-dimensional structural schematic diagram of the corresponding clamping of the welding pipes used in the four combined welding devices of the present invention;

[0036] Figure 14 For the present invention Figure 13 A magnified schematic diagram of the structure at point E in the middle.

[0037] In the diagram: 1. Main wheel frame; 2. Auxiliary wheel frame; 3. Mounting frustum; 4. Robotic arm; 5. Welding head; 6. Main clamping frame; 7. Auxiliary clamping frame; 8. First servo motor; 9. Lifting frame; 10. Electric lifting rod; 11. Stepped mounting tube; 12. Adjustment frame; 13. First clamping frame; 14. Second clamping frame; 15. External mounting lug; 16. Conical spring; 17. Insertion pin; 18. Through hole; 19. Positioning slot; 20. Lead screw shaft; 21. Second servo motor; 22. Same as above. 23. First drive rod; 24. Second drive rod; 25. Middle side groove; 26. Clamping hole; 27. Clamping column; 28. Permanent magnet; 29. ​​Mounting cylinder; 30. Electromagnet; 31. Telescopic cylinder; 32. Telescopic column; 33. Mounting plate; 34. Auxiliary plate; 35. Mounting frame; 36. Auxiliary frame; 37. Electric drive rod; 38. Electric adjusting rod; 39. Rolling wheel; 40. Shaft frame; 41. Drive motor; 42. Anti-slip ridge; 43. Extendable mounting frame. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] For examples, please refer to Figures 1-14 A combined welding device includes a laser welding apparatus and a combined traveling structure. The combined traveling structure includes a main wheel frame 1 and an auxiliary wheel frame 2. Both the main wheel frame 1 and the auxiliary wheel frame 2 are equipped with powered wide wheels. Each powered wide wheel includes a rolling wheel 39 and a spindle frame 40. The two spindle frames 40 are fixedly connected to the main wheel frame 1 and the auxiliary wheel frame 2, respectively. The two rolling wheels 39 are rotatably connected to the two spindle frames 40, respectively. A drive motor 41 is installed inside each of the two spindle frames 40. The output shafts of the two drive motors 41 are respectively connected to the two rolling wheels 39. Anti-slip ridges 42 are provided on the outside of each rolling wheel 39. Through the design of the combined traveling structure, a mobile functional structure for the combined welding device can be formed, facilitating movement and dragging relative to the target workpiece, thereby facilitating the adjustment of the basic relative welding position of the target workpiece. A parallel telescopic connector is installed between the main wheel frame 1 and the auxiliary wheel frame 2. The connector is equipped with a mounting frustum 3. The parallel telescopic connector includes two telescopic cylinders 31 and two telescopic columns 32. Both telescopic cylinders 31 are rotatably connected to the main wheel frame 1, and both telescopic columns 32 are rotatably connected to the auxiliary wheel frame 2. A mounting plate 33 is rotatably connected between the two telescopic cylinders 31, and an auxiliary plate 34 is rotatably connected between the two telescopic columns 32. A mounting frame 35 and an auxiliary frame 36 are rotatably connected to the bottom ends of the mounting plate 33 and the auxiliary plate 34, respectively. An electric drive rod 37 is installed inside the mounting frame 35, and the drive rod of the electric drive rod 37 is connected to the auxiliary frame 36. An electric adjustment rod 38 is installed at the bottom end of one of the two telescopic cylinders 31. The telescopic rod of the electric adjustment rod 38 is connected to the mounting plate 33. Both telescopic cylinders 31 are rotatably connected to the mounting frustum 3, forming a specific installation structure between the main wheel frame 1 and the auxiliary wheel frame 2, which facilitates the relative adjustment between the auxiliary wheel frame 2 and the main wheel frame 1 and the maintenance of their relative posture during the adjustment process.

[0040] It should be further explained that the laser welding device includes a robotic arm 4 and a welding head 5. The robotic arm 4 is mounted on the mounting platform 3, and the welding head 5 is mounted on the execution end of the robotic arm 4. With the configuration of the laser welding device, a functional structure for performing welding can be formed to ensure welding operations relative to the target part to be welded. A main clamping frame 6 and an auxiliary clamping frame 7 are rotatably mounted on the main wheel frame 1 and the auxiliary wheel frame 2, respectively. Both the main clamping frame 6 and the auxiliary clamping frame 7 are equipped with lifting clamping components. A first servo motor 8 is mounted on both the main wheel frame 1 and the auxiliary wheel frame 2. An external mounting frame 43 is fixedly connected to both the main wheel frame 1 and the auxiliary wheel frame 2. The two first servo motors 8 are respectively mounted on the two external mounting frames 43, and the two first servo motors 8 are used for the main clamping frame 6 and the auxiliary clamping frame 7, respectively. The rotation adjustment is achieved by two lifting clamping assemblies, each including a lifting frame 9 and an electric lifting rod 10. The two lifting frames 9 are slidably connected to the main clamping frame 6 and the auxiliary clamping frame 7, respectively. Stepped mounting tubes 11 are fixedly connected to both the main clamping frame 6 and the auxiliary clamping frame 7. Two electric lifting rods 10 are respectively mounted on the two stepped mounting tubes 11, and their lifting rods are connected to the two lifting frames 9. A shifting frame 12 is rotatably connected to each of the two lifting frames 9. A resilient pin mechanism is provided between each shifting frame 12 and each of the two lifting frames 9. A first clamping frame 13 and a second clamping frame 14 are rotatably connected to each of the two shifting frames 12. Each shifting frame 12 is equipped with an electric drive mechanism, which is used for two... The first clamping frame 13 is driven by two electric drive mechanisms, which are also used to drive the clamping of the two second clamping frames 14. The elastic pin mechanism includes an outer ear 15, which is fixedly connected to the adjustment frame 12. A conical spring 16 is fixedly connected to the outer ear 15, and an insertion pin 17 is fixedly connected to the conical spring 16. The outer ear 15 is provided with a through hole 18 that matches the insertion pin 17. The lifting frame 9 is provided with multiple positioning slots 19 that match the insertion pin 17. Each of the two electric drive mechanisms includes a lead screw shaft 20 and a second servo motor 21. The two lead screw shafts 20 are rotatably connected to the two adjustment frames 12, and the two second servo motors 21 are respectively mounted on the two adjustment frames 12. The output shafts of the two second servo motors 21 are respectively connected to the two lead screw shafts 12. The transmission connection is via two lead screw shafts 20. Synchronous drive cylinders 22 are threaded onto each of the two lead screw shafts 20. The two synchronous drive cylinders 22 are slidably connected within two adjustment frames 12. A first drive rod 23 and a second drive rod 24 are hinged to each of the two synchronous drive cylinders 22. The two first drive rods 23 are hinged to two first clamping frames 13, and the two second drive rods 24 are hinged to two second clamping frames 14. Each of the two first clamping frames 13 and the two second clamping frames 14 has a central groove 25 and multiple clamping holes 26. Clamping posts 27 are slidably connected within each of the multiple clamping holes 26. Permanent magnets 28 are fixedly connected to each of the multiple clamping posts 27. Multiple mounting cylinders 29 are fixedly connected to each of the two first clamping frames 13 and the two second clamping frames 14.Each of the multiple mounting cylinders 29 contains an electromagnet 30, which is matched with a plurality of permanent magnets 28. The design of the lifting clamping assembly facilitates the relative clamping of the combined traveling structure with respect to the target part to be welded, offering a variety of clamping modes and making it more practical.

[0041] In this embodiment, the first servo motor 8, the electric lifting rod 10, the second servo motor 21, the permanent magnet 28, the electric drive rod 37, the electric adjusting rod 38, and the drive motor 41 are all commercially available conventional devices known to those skilled in the art. In this invention, we are simply using them without making any improvements to their structure or function. Their setting methods, installation methods, and electrical connection methods can be easily understood by those skilled in the art by following the instructions for use, and will not be described in detail here.

[0042] In summary, the working principle of this combined welding equipment and welding method is as follows: Before use, control circuits are installed for the first servo motor 8, electric lifting rod 10, second servo motor 21, permanent magnet 28, electric drive rod 37, electric adjusting rod 38, and drive motor 41. During use, the lifting and clamping components are adjusted according to the specific structural form of the target part to be welded. During the adjustment process, the relative position between the main wheel frame 1 and the auxiliary wheel frame 2 is controlled so that the two lifting and clamping components have a matching relative clamping position with the target part to be welded. The relative position between the main wheel frame 1 and the auxiliary wheel frame 2 is adjusted accordingly. The electric drive rod 37 and the electric adjusting rod 38 work together to achieve the following: the electric drive rod 37 adjusts the relative position of the mounting plate 33 and the auxiliary plate 34, thereby adjusting the relative position of the two telescopic cylinders 31 relative to the two telescopic columns 32, and ultimately adjusting the relative distance between the main wheel frame 1 and the auxiliary wheel frame 2. The electric adjusting rod 38 rotates the mounting plate 33 relative to the telescopic cylinders 31 on which it is mounted, thereby adjusting the relative distance between the two telescopic cylinders 31, and ultimately adjusting the rotation of the auxiliary wheel frame 2 relative to the main wheel frame 1. (This is combined with the attached...) Figure 12 and attached Figure 13 This describes the application states of two lifting and clamping components, one of which is attached. Figure 13 In the case where the target component to be welded has a structure similar to a pipe, the two lifting clamping components in this single combined welding equipment are respectively distributed on both sides of the target component. The rotation of the lead screw shaft 20 is driven by the second servo motor 21. The rotation of the lead screw shaft 20 causes the synchronous drive cylinder 22 to slide relative to the rotating frame 12. The movement of the synchronous drive cylinder 22, via the first drive rod 23 and the second drive rod 24, moves the first clamping frame 13 and the second clamping frame 14, ultimately forming a clamping state relative to the target component, achieving clamping and positioning of the target component. Figure 12This is a schematic diagram of the operation when the target part to be welded is a similar sheet metal structure. First, the conical spring 16 is used to pull the insertion pin 17 out of its original positioning slot 19. Then, the adjustment frame 12 is rotated relative to the lifting frame 9 to adjust its position as shown in the attached diagram. Figure 1 The device rotates from its vertical position to a horizontal position. Then, the second servo motor 21 is powered on to achieve a small-amplitude rotation adjustment of the first clamping frame 13 and the second clamping frame 14 relative to the corresponding adjustment frame 12, so that the center groove 25 has a relatively extended posture relative to the adjustment frame 12. Then, the target part to be welded is inserted into the center groove 25, and the electromagnet 30 is powered on to generate an electromagnetic field. The force of the electromagnetic field acting on the permanent magnet 28 is controlled to be a repulsive force, thereby achieving the push-out of the clamping column 27 relative to the clamping hole 26. After the clamping column 27 is pushed out of the clamping hole 26, it can form a clamping and positioning relative to the target part to be welded inserted into the center groove 25. Before clamping and positioning, the height of the electric lifting frame 9 is adjusted in advance by powering on the electric lifting frame 9 so that the adjustment frame 12 is height-adapted relative to the target part to be welded. During the clamping process, the target part to be welded can be lifted with the help of a pry bar to facilitate the insertion of the target part to be welded relative to the center groove 25.

[0043] Furthermore, after adjustment, the combined welding equipment moves to position the target part to be welded via the lifting and clamping assembly. The drive motor 41, when powered on, drives the rotation of the rolling wheels 39 relative to the shaft frame 40. The rotation of the two rolling wheels 39 enables the main wheel frame 1 and the auxiliary wheel frame 2 to move. This movement allows for relative position adjustment of the combined welding equipment relative to the target part before the lifting and clamping assembly clamps it. After the lifting and clamping assembly clamps the target part, the combined welding equipment can adjust the position of the target part to facilitate welding. The welding positioning of the target parts to be welded involves adjusting the relative positions of the welding edges between the two target parts to ensure a suitable welding distance. Then, a welding machine is installed on the welding head 5. When the welding machine is powered on, the welding head 5 generates a welding output. The robotic arm 4 identifies the welding trajectory formed by the welding head 5 relative to the target parts. The robotic arm 4 then controls the welding head 5 to be positioned relative to the target parts. Finally, the welding machine and the robotic arm 4 are started simultaneously to perform the welding movement of the welding head 5, thus completing the welding operation of the target parts.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined welding equipment, comprising a laser welding device, characterized in that, It also includes a combined traveling structure, which includes a main wheel frame (1) and an auxiliary wheel frame (2). Both the main wheel frame (1) and the auxiliary wheel frame (2) are equipped with power wide wheels. A parallel telescopic connector is installed between the main wheel frame (1) and the auxiliary wheel frame (2). A mounting platform (3) is installed on the parallel telescopic connector. The laser welding device includes a robotic arm (4) and a welding head (5). The robotic arm (4) is installed on the mounting platform (3). The welding head (5) is installed on the execution end of the robotic arm (4). A main clamping frame (6) and an auxiliary clamping frame (7) are rotatably installed on the main wheel frame (1) and the auxiliary wheel frame (2), respectively. Both the main clamping frame (6) and the auxiliary clamping frame (7) are equipped with lifting clamping components. A first servo motor (8) is installed on both the main wheel frame (1) and the auxiliary wheel frame (2). The two first servo motors (8) are used for the rotation adjustment of the main clamping frame (6) and the auxiliary clamping frame (7), respectively. Both lifting clamping assemblies include a lifting frame (9) and an electric lifting rod (10). The two lifting frames (9) are slidably connected to the main clamping frame (6) and the auxiliary clamping frame (7), respectively. Stepped mounting tubes (11) are fixedly connected to both the main clamping frame (6) and the auxiliary clamping frame (7). The two electric lifting rods (10) are respectively mounted on the two stepped mounting tubes (11). The lifting rods of the two electric lifting rods (10) are respectively connected to the two lifting frames (9). Each of the two adjustment frames (12) is rotatably connected to the two lifting frames (9). Each of the two adjustment frames (12) is provided with an elastic pin mechanism between it and the two lifting frames (9). Each of the two adjustment frames (12) is rotatably connected to a first clamping frame (13) and a second clamping frame (14). Each of the two adjustment frames (12) is equipped with an electric drive mechanism. The two electric drive mechanisms are used for clamping and driving the two first clamping frames (13) respectively, and the two electric drive mechanisms are also used for clamping and driving the two second clamping frames (14) respectively.

2. The combined welding equipment according to claim 1, characterized in that, The elastic pin mechanism includes an external hanging ear (15), which is fixedly connected to the adjustment frame (12). A conical spring (16) is fixedly connected to the external hanging ear (15), and an insertion pin (17) is fixedly connected to the conical spring (16). A through hole (18) matching the insertion pin (17) is provided on the external hanging ear (15), and multiple positioning slots (19) matching the insertion pin (17) are provided on the lifting frame (9).

3. The combined welding equipment according to claim 2, characterized in that, Both of the electric drive mechanisms include a lead screw shaft (20) and a second servo motor (21). The two lead screw shafts (20) are rotatably connected to the two adjustment frames (12). The two second servo motors (21) are respectively mounted on the two adjustment frames (12). The output shafts of the two second servo motors (21) are respectively connected to the two lead screw shafts (20). The two lead screw shafts (20) are threaded with synchronous drive cylinders (22). The two synchronous drive cylinders (22) are slidably connected to the two adjustment frames (12). The two synchronous drive cylinders (22) are hinged with a first drive rod (23) and a second drive rod (24). The two first drive rods (23) are respectively hinged to the two first clamping frames (13). The two second drive rods (24) are respectively hinged to the two second clamping frames (14).

4. The combined welding equipment according to claim 3, characterized in that, Each of the two first clamping frames (13) and the two second clamping frames (14) has a central groove (25) and multiple clamping holes (26). Each of the multiple clamping holes (26) has a clamping post (27) slidably connected to it. Each of the multiple clamping posts (27) has a permanent magnet (28) fixedly connected to it. Each of the two first clamping frames (13) and the two second clamping frames (14) has multiple mounting cylinders (29) fixedly connected to it. Each of the multiple mounting cylinders (29) has an electromagnet (30) installed inside it. Each of the multiple electromagnets (30) is matched with each of the multiple permanent magnets (28).

5. The combined welding equipment according to claim 4, characterized in that, The parallel telescopic connector includes two telescopic cylinders (31) and two telescopic columns (32). Both telescopic cylinders (31) are rotatably connected to the main wheel frame (1), and both telescopic columns (32) are rotatably connected to the auxiliary wheel frame (2). An installation plate (33) is rotatably connected between the two telescopic cylinders (31), and an auxiliary plate (34) is rotatably connected between the two telescopic columns (32). An installation frame (35) and an auxiliary frame (36) are rotatably connected to the bottom end of the installation plate (33) and the bottom end of the auxiliary plate (34), respectively. An electric drive rod (37) is installed inside the installation frame (35), and the drive rod of the electric drive rod (37) is connected to the auxiliary frame (36). An electric adjustment rod (38) is installed at the bottom end of one of the two telescopic cylinders (31), and the telescopic rod of the electric adjustment rod (38) is connected to the installation plate (33). Both telescopic cylinders (31) are rotatably connected to the mounting frustum (3).

6. The combined welding equipment according to claim 5, characterized in that, Both of the aforementioned power wide wheels include rolling wheels (39) and axle frames (40). The two axle frames (40) are fixedly connected to the main wheel frame (1) and the auxiliary wheel frame (2) respectively. The two rolling wheels (39) are rotatably connected to the two axle frames (40) respectively. A drive motor (41) is installed in each of the two axle frames (40). The output shafts of the two drive motors (41) are respectively connected to the two rolling wheels (39) for transmission.

7. The combined welding equipment according to claim 6, characterized in that, Both of the rollers (39) are provided with anti-slip ridges (42).

8. The combined welding equipment according to claim 7, characterized in that, Both the main wheel frame (1) and the auxiliary wheel frame (2) are fixedly connected to an extension bracket (43), and the two first servo motors (8) are respectively installed on the two extension brackets (43).

9. A combined welding process, characterized in that, The method of using a combined welding apparatus according to any one of claims 1-8 includes the following steps: S1. When in use, adjust the lifting clamping assembly according to the specific structural form of the target part to be welded. During the adjustment process, control the relative position between the main wheel frame (1) and the auxiliary wheel frame (2) so that the two lifting clamping assemblies have matching relative clamping positions with the target part to be welded. S2. After the adjustment is completed, the welding target part is positioned by the lifting clamping assembly. Then, the welding machine is installed in conjunction with the welding head (5). When the welding machine is powered on, the welding output operation is formed through the welding head (5). S3. The welding head (5) is identified relative to the target part to be welded by the operation of the robotic arm (4). Then the robotic arm (4) controls the welding head (5) to be welded in place relative to the target part. Finally, the welding machine and the robotic arm (4) are started simultaneously to perform the welding movement of the welding head (5) and realize the welding operation of the target part to be welded.

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