Electric arc welding track control system and method with self-correction function
The arc welding trajectory control system with self-correction function adjusts the welding trajectory in real time, solving the problems of weld metal overheating and pipeline deformation caused by heat accumulation in pipeline welding, and improving welding quality and pipeline connection stability.
Patent Information
- Application Number
- CN202511725319.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-02-24
AI Technical Summary
In existing technologies, during pipeline welding, heat accumulation leads to overheating of the weld metal, resulting in coarse grain structure, reduced strength and toughness, and uneven heat causes pipeline deformation, affecting welding quality.
An arc welding trajectory control system with self-correction function is adopted. Through components such as drive mechanism, electric telescopic component and monitoring camera, the welding trajectory is adjusted in real time to ensure that the welding component always corresponds to the weld position and realizes autonomous correction.
It improves welding quality, prevents overheating of weld metal, reduces internal stress, and ensures the continuity and sealing of pipeline welding.
Smart Images

Figure CN121551765A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of arc welding trajectory control technology, and in particular to an arc welding trajectory control system and method with self-correction function. Background Technology
[0002] Arc welding can be used to weld all kinds of metal materials, such as aluminum, magnesium, copper, nickel and their alloys, stainless steel, carbon steel, low alloy structural steel, etc. It can also be used for welding carbon steel, low alloy structural steel and stainless steel. Arc welding can be used for simple rebar splicing.
[0003] Pipeline welding is a process that uses welding technology to connect pipes or fittings into a whole. It is widely used in industries such as petroleum, chemical, natural gas, shipbuilding, power, and construction. Especially in the construction of long-distance oil and gas pipelines, pipeline welding is a key step in connecting steel pipes and ensuring the continuity and sealing of the pipeline system. Arc welding is often used for this welding operation.
[0004] In existing technologies, welding robots work in conjunction with industrial control computers (ICCs). The ICC acquires a 3D model of the workpiece, calculates and generates a welding trajectory based on the weld seam, and then controls the welding robot to perform actions according to the welding trajectory. The ICC uses cameras to capture image information of the welding environment, such as the workpiece's position, posture, and surface condition. After analysis and processing by image processing algorithms, the welding device can be given environmental awareness. However, in actual operation, welding devices used for pipe welding in existing technologies are prone to heat accumulation inside the pipe. This heat accumulation can lead to excessively high temperatures in the welding area, potentially causing overheating of the weld metal and the formation of coarse grains, thus reducing the strength and toughness of the weld. Excessive temperatures can also cause hot cracks in the weld metal, leading to a decline in weld quality. Furthermore, uneven heat accumulation inside the pipe can cause localized thermal expansion, generating internal stress. After welding, as the temperature decreases, the internal stress is released, potentially causing pipe deformation, such as bending or twisting.
[0005] CN119927936A discloses a sensor-controlled robotic welding trajectory planning device, which includes a base with two symmetrically distributed grooves on both sides of the base. Two spaced supports are slidably mounted on the base, a controller is installed on the base, and a camera is fixedly mounted on the top of the base. This sensor-controlled robotic welding trajectory planning device rotates the pipe to be welded within the device, allowing the camera to capture a more comprehensive view of the pipe. During welding, the rotation of the extension plate promotes airflow and generates airflow towards the inside of the pipe, thereby accelerating the outflow of high-temperature air from the pipe and accelerating the inflow of low-temperature air from the outside. This accelerates heat dissipation from the pipe and the weld, improving welding quality and protecting the pipe.
[0006] However, the above technical solution uses a trajectory planning device, which can perform trajectory planning before welding. However, how to adjust the welding trajectory during the welding process is a difficult problem in this field. Summary of the Invention
[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing an arc welding trajectory control system and method with self-correction function.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: An arc welding trajectory control system with self-correction function includes a main body for welding equipment installation and control, a mounting frame mounted on the main body, a drive mechanism mounted inside the mounting frame, a second gear and a third gear mounted on the drive mechanism, a swing arm fixed on the mounting component, a moving opening on the swing arm, a transmission mechanism mounted on the mounting component, a moving component mounted on the transmission mechanism, the transmission mechanism being connected to the second gear, a support frame mounted on the swing arm, a rotating mounting frame rotatably connected to the support frame, a control mechanism with monitoring function mounted at one end of the rotating mounting frame, a welding component mounted on the control mechanism, and a slanted push rod rotatably connected to the upper end of the moving component, the slanted push rod being rotatably connected to one side of the lower end of the support frame.
[0009] Preferably, to facilitate the power supply for the operation of the components and achieve automated adjustment, the drive mechanism includes a motor assembly installed in the mounting bracket. The output shaft of the motor assembly is fixed to a horizontal shaft. The second gear and the third gear are rotatably sleeved on the horizontal shaft. The lower end of the third gear is connected to a swing mechanism. The swing mechanism is connected to the main body for welding equipment installation and control. A second electric telescopic assembly is installed on the mounting component. A sleeve is rotatably sleeved on the second electric telescopic assembly. The sleeve is slidably sleeved on the horizontal shaft. Both ends of the sleeve are fixed with abutment plates, and the two abutment plates are located on opposite sides of the second gear and the third gear.
[0010] Preferably, in order to adjust the orientation, the swing mechanism includes an end gear ring disposed on the upper end of the main body for mounting and controlling the welding equipment, the mounting component being rotatably connected to the main body for mounting and controlling the welding equipment, and the end gear ring meshing with a third gear.
[0011] Preferably, in order to adjust the position of the lead screw, the transmission mechanism includes a lead screw nut component rotatably sleeved on the mounting component, one end of the lead screw nut component is fixed with a first gear, the first gear and the second gear mesh with each other, a lead screw is screwed into the lead screw nut component, and one end of the lead screw is fixed to the lower end of the moving component.
[0012] Preferably, in order to achieve automated adjustment and facilitate control of the position of the monitored welding assembly, the welding assembly is a monitored welding assembly; the control mechanism includes a first electric telescopic assembly rotatably connected to the other side of the lower end of the rotating mounting frame, the end of the output piston rod of the first electric telescopic assembly being rotatably connected to one end of the monitored welding assembly, and the monitored welding assembly being rotatably connected to one end of the rotating mounting frame.
[0013] Preferably, in order to enable the second gear and the third gear to rotate and be fixed, two U-shaped positioning elements are installed on the second electric telescopic assembly, and the second gear and the third gear are located between the two U-shaped positioning elements.
[0014] Preferably, in order to facilitate movement and adapt to different length specifications of the parts to be welded, the upper end of the main body for installing and controlling the welding equipment is provided with a reciprocating mechanism, the reciprocating mechanism is provided with a moving plate, the support frame is rotatably connected to the upper end of the moving plate, and the end gear ring is fixed to the upper end of the moving plate.
[0015] Preferably, in order to facilitate automated movement and fully ensure the stability of the moving plate, the reciprocating mechanism includes a mounting groove at the upper end of the main body for installing and controlling the welding equipment. A hydraulic cylinder assembly is fixed on one side wall of the mounting groove. The piston rod end of the hydraulic cylinder assembly is fixed to one side of the moving plate, and the moving plate is slidably installed in the mounting groove.
[0016] Preferably, in order to ensure that the weldable components are fully spliced and clamped to facilitate subsequent welding and to allow for real-time adjustment of the weld position, an automatic conveyor belt assembly is fixed to one side of the main body for installing and controlling the welding equipment, and the welding assembly with monitoring is located at the upper end of the automatic conveyor belt assembly. Both sides of the automatic conveyor belt assembly are provided with abutment rotation components. One abutment rotation component is fixedly connected to the automatic conveyor belt assembly, and a third electric telescopic component is installed on the other abutment rotation component. The third electric telescopic component is installed on the automatic conveyor belt assembly.
[0017] This invention also proposes an arc welding trajectory control method with self-correction function, applicable to the aforementioned arc welding trajectory control system with self-correction function, comprising the following steps: S1. The staff can place the parts to be welded onto the automatic conveyor belt assembly for splicing; at the same time, the third electric telescopic assembly can drive the fixed anti-rotation assembly to move and achieve the purpose of clamping the two anti-rotation assemblies on both sides of the parts to be welded. S2. The motor assembly drives the horizontal shaft to rotate, and the horizontal shaft causes the sleeve to drive the two contact plates to rotate. The second electric telescopic assembly enables the two contact plates to contact the second gear and the third gear respectively as needed for transmission. S3. The rotation of the third gear can drive the mounting bracket to rotate under the cooperation of the end gear ring. The rotation of the second gear can drive the moving part to move under the action of the first gear and the lead screw nut, so as to control the angle of the rotating mounting bracket. S4. The moving plate can be moved by the hydraulic cylinder assembly, which facilitates the expansion of the welding range of the monitored welding assembly; S5. Through the cooperation of the first electric telescopic component and the monitored welding component, the angle of the monitored welding component can be further adjusted; at the same time, the monitored welding component can upload the captured images in real time so as to autonomously analyze the changes in the position to be welded. S6. Based on changes in the welding position, the automatic conveyor belt assembly can move the parts to be welded back and forth. At the same time, in conjunction with the adjustment of the monitored welding assembly, it can accurately correspond to changes in the welding position and ensure that the monitored welding assembly can always correspond to the weld.
[0018] The beneficial effects of this invention are: 1. Through the action of the drive mechanism, it can provide power for the operation of the component, making it easy for the component to deflect and rotate, and can handle the component to be welded at multiple angles; 2. The first electric telescopic component enables the monitored welding component and the rotating mounting frame to deflect, and in conjunction with the deflection and rotation of the rotating mounting frame itself, expands its welding range to cope with welding points at different positions and angles. 3. It can splice weldable components and effectively clamp and limit their movement, so that subsequent welding can be carried out precisely through monitored welding components; 4. In actual use, the second electric telescopic rod will drive the sleeve to move on the horizontal axis. At the same time, the rotation of the horizontal axis will drive the sleeve to rotate, so that the sleeve will drive the two abutment plates to rotate. When the two abutment plates rotate towards the second gear, one of the abutment plates will abut against the second gear, and the second gear will rotate through friction. At the same time, one end of the U-shaped positioning piece will abut against the third gear, preventing the third gear from rotating. Conversely, when the two abutment plates move towards the third gear, the other abutment plate will cause the third gear to rotate, and the U-shaped positioning piece will prevent the second gear from rotating, thereby achieving the purpose of controlling the transmission. 5. The monitored welding assembly can upload the captured images in real time to autonomously analyze changes in the welding position and transmit the weld changes to the main unit of the welding equipment installation and control. The main unit of the welding equipment installation and control can understand the weld direction based on the captured video images. By adjusting the automatic conveyor belt assembly and the control assembly of the monitored welding assembly, it can ensure that the welding parts on the monitored welding assembly always correspond to the weld position, achieving the purpose of autonomous correction. Attached Figure Description
[0019] Figure 1 This is a structural diagram of the arc welding trajectory control system with self-correction function proposed in this invention; Figure 2 This is a structural diagram of the moving plate in the arc welding trajectory control system with self-correction function proposed in this invention; Figure 3 Appendix to this invention Figure 1 Enlarged view of point A; Figure 4 This is a top view of the swing arm and moving port in the arc welding trajectory control system with self-correction function proposed in this invention; Figure 5 This is a structural diagram of the anti-rotation component in the arc welding trajectory control system with self-correction function proposed in this invention; In the diagram: 1. Main body for welding equipment installation and control; 2. Inclined push rod; 3. Support frame; 4. Welding assembly; 5. Rotating mounting frame; 6. First electric telescopic assembly; 7. Moving part; 8. Moving port; 9. Lead screw; 10. First gear; 11. Lead screw nut assembly; 12. Second gear; 13. Horizontal shaft; 14. Swing rod; 15. Contact plate; 16. Sleeve fitting; 17. U-shaped positioning part; 18. Second electric telescopic assembly; 19. Third gear; 20. Mounting groove; 21. Hydraulic cylinder assembly; 22. Moving plate; 23. Mounting frame; 24. Automatic conveyor belt assembly; 25. Motor assembly; 26. Third electric telescopic assembly; 27. Contact rotation assembly. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0021] Reference Figure 1-5 The arc welding trajectory control system with self-correction function includes a main body 1 for welding equipment installation and control. The main body 1 is equipped with supporting components for controlling the corresponding automated components. It is also equipped with a control component that can adjust the weld position by receiving video image information from the monitored welding assembly 4 to ensure that the position of the welding head on the monitored welding assembly 4 always corresponds to the weld. The internal intelligent control system, the control of the welding equipment and other automated components, and the supporting components are all existing technologies. The main body 1 for welding equipment installation and control is equipped with a mounting frame 23. The mounting frame 23 is equipped with a drive mechanism. The drive mechanism is equipped with a second gear 12 and a third gear 19, which can make the second gear 12 and the third gear 19 rotate.
[0022] Reference Figure 1-5 The drive mechanism includes a motor assembly 25 installed in the mounting bracket 23. The output shaft of the motor assembly 25 is fixed to a horizontal shaft 13. The second gear 12 and the third gear 19 are rotatably sleeved on the horizontal shaft 13. The lower end of the third gear 19 is connected to a swing mechanism. The swing mechanism is connected to the main body 1 for welding equipment installation and control. A second electric telescopic assembly 18 is installed on the mounting component. A sleeve 16 is rotatably sleeved on the second electric telescopic assembly 18. The sleeve 16 is slidably sleeved on the horizontal shaft 13. Both ends of the sleeve 16 are fixed with abutment plates 15. The two abutment plates 15 are located on opposite sides of the second gear 12 and the third gear 19. The second electric telescopic assembly 18 can drive the sleeve 16 to move, which facilitates the sleeve 16 to drive the abutment plates 15 to rotate. The sleeve 16 can rotate synchronously with the horizontal shaft 13, which facilitates the two abutment plates 15 to abut against the corresponding second gear 12 and third gear 19, and facilitates the separate control of the rotation of the second gear 12 and the third gear 19.
[0023] Reference Figure 1-5 A swing arm 14 is fixed on the mounting component. A movable port 8 is opened on the swing arm 14. A transmission mechanism is provided on the mounting component. A movable part 7 is installed on the transmission mechanism. The transmission mechanism is connected to the second gear 12. A support frame 3 is installed on the swing arm 14. A rotating mounting frame 5 is rotatably connected to the support frame 3. A control mechanism with monitoring and welding functions is installed at one end of the rotating mounting frame 5.
[0024] The control mechanism is equipped with a welding assembly 4 with monitoring capabilities to achieve both monitoring and welding functions. The welding assembly 4 with monitoring capabilities means that it is equipped with a monitoring camera for capturing video of the welding position. The welding assembly 4 with monitoring capabilities can upload the captured images in real time for independent analysis and archiving. Staff can also observe in real time or review the files afterward to analyze changes in the position to be welded, ensuring that the weld position is always located at the lower end of the welding assembly 4 with monitoring capabilities. In other words, the welding assembly 4 with monitoring capabilities in this application can move laterally, while the automatic conveyor belt assembly 24 can drive the parts to be welded to move back and forth, ensuring that the welding assembly 4 with monitoring capabilities corresponds to the weld.
[0025] The upper end of the movable part 7 is rotatably connected to the inclined push rod 2, which is rotatably connected to the lower end of the support frame 3. The motor assembly 25 drives the horizontal shaft 13 to rotate, and the horizontal shaft 13 causes the sleeve part 16 to drive the two abutment plates 15 to rotate. The abutment plate 15 can be brought close to the second gear 12 or the third gear 19 through the second electric telescopic assembly 18. When the second gear 12 on the same side and the abutment plate 15 or the third gear 19 on the other side and another abutment plate 15 are in contact, the mounting part can be rotated or the first gear 10 can be rotated. The deflection angle can be controlled and the third gear 19 can be reciprocated. The movable part 7 can pull the inclined push rod 2 to drive the support frame 3 to deflect the rotating mounting frame 5. The first electric telescopic assembly 6 can deflect the monitored welding assembly 4 relative to the rotating mounting frame 5.
[0026] Reference Figure 1-3 The swing mechanism includes an end gear ring disposed on the upper end of the main body 1 for welding equipment installation and control. The mounting component is rotatably connected to the main body 1 for welding equipment installation and control. The end gear ring meshes with the third gear 19. The cooperation between the third gear 19 and the end gear ring enables the mounting component to rotate relative to the main body 1 for welding equipment installation and control.
[0027] Reference Figure 1-3 The transmission mechanism includes a lead screw nut 11 rotatably sleeved on the mounting component. One end of the lead screw nut 11 is fixed with a first gear 10, which meshes with a second gear 12. A lead screw 9 is screwed into the lead screw nut 11. One end of the lead screw 9 is fixed to the lower end of the moving component 7. The rotation of the lead screw nut 11 can control the reciprocating movement of the lead screw 9, making it easy for the lead screw 9 to drive the moving component 7 to reciprocate. The moving component 7 prevents the lead screw 9 from rotating and allows it to move only under the action of the rotation of the lead screw nut 11.
[0028] Reference Figure 1 , 2The control mechanism includes a first electric telescopic component 6 rotatably connected to the other side of the lower end of the rotating mounting frame 5. The output piston rod end of the first electric telescopic component 6 is rotatably connected to one end of the monitored welding component 4. The monitored welding component 4 is rotatably connected to one end of the rotating mounting frame 5. The first electric telescopic component 6 can extend and retract according to the control, which facilitates the swinging of the monitored welding component 4 and makes it easier to weld at different positions. By controlling the monitored welding component 4, the position can be adjusted so that the monitored welding component 4 can cooperate with the movement of the part to be welded and quickly and accurately respond.
[0029] Reference Figure 3 The second electric telescopic assembly 18 is equipped with two U-shaped positioning parts 17. The second gear 12 and the third gear 19 are located between the two U-shaped positioning parts 17. The second electric telescopic assembly 18 can control the movement of the two U-shaped positioning parts 17 so that they can collide with the second gear 12 or the third gear 19, and can control whether the second gear 12 or the third gear 19 can rotate.
[0030] Reference Figure 1-5 The upper end of the main body 1 for welding equipment installation and control is provided with a reciprocating mechanism, on which a moving plate 22 is provided. The moving plate 22 can be moved by the reciprocating mechanism. The support frame 3 is rotatably connected to the upper end of the moving plate 22, and the end gear ring is fixed to the upper end of the moving plate 22. The reciprocating mechanism includes a mounting groove 20 set at the upper end of the main body 1 for welding equipment installation and control. A hydraulic cylinder assembly 21 is fixed on one side wall of the mounting groove 20. In actual production, the hydraulic cylinder assembly 21 can push the moving plate 22 to move. The piston rod end of the hydraulic cylinder assembly 21 is fixed to one side of the moving plate 22. The moving plate 22 is slidably installed in the mounting groove 20. An automatic conveyor belt assembly 24 is fixed to one side of the main body 1 for welding equipment installation and control. A welding assembly 4 with monitoring is located at the upper end of the automatic conveyor belt assembly 24 and can monitor the welding equipment waiting on it. The welding components are monitored in real time. Both sides of the automatic conveyor belt assembly 24 are equipped with contact rotating components 27. One contact rotating component 27 is fixedly connected to the automatic conveyor belt assembly 24, and the other contact rotating component 27 is equipped with a third electric telescopic component 26. The third electric telescopic component 26 is mounted on the automatic conveyor belt assembly 24. During actual production, the automatic conveyor belt assembly 24 can assemble the components to be welded, meaning workers can place the components to be welded onto the automatic conveyor belt assembly 24 for assembly. Simultaneously, the third electric telescopic component 26 can drive the contact rotating component 27 fixed to it to move, achieving the purpose of clamping the two contact rotating components 27 to the sides of the component to be welded. It can also adjust the position of the component to be welded, placing it below the welding head of the monitored welding component 4 for welding operations.
[0031] This invention also proposes a positioning method for an arc welding trajectory control system with self-correction function, applicable to the aforementioned arc welding trajectory control system with self-correction function, comprising the following steps: S1. The staff can place the parts to be welded onto the automatic conveyor belt assembly 24 for splicing; at the same time, the third electric telescopic assembly 26 can drive the fixed anti-rotation assembly 27 to move and achieve the purpose of clamping the two anti-rotation assemblies 27 on both sides of the parts to be welded. S2, the motor assembly 25 drives the horizontal shaft 13 to rotate, the horizontal shaft 13 causes the sleeve 16 to drive the two abutment plates 15 to rotate, and the second electric telescopic assembly 18 can make the two abutment plates 15 abut against the second gear 12 and the third gear 19 respectively as needed to carry out transmission; The rotation of S3 and the third gear 19 can drive the mounting bracket 23 to rotate under the cooperation of the end gear ring. The rotation of the second gear 12 can drive the first gear 10 and the lead screw nut 11 to move the moving part 7, so as to control the angle of the rotating mounting bracket 5. S4. The moving plate 22 can be moved by the hydraulic cylinder assembly 21, which facilitates the increase of the welding range of the monitored welding assembly 4. S5. Through the cooperation of the first electric telescopic component 6 and the monitored welding component 4, the angle of the monitored welding component 4 can be further adjusted; at the same time, the monitored welding component 4 can upload the captured images in real time so as to analyze the changes in the position to be welded independently. S6. The automatic conveyor belt assembly 24 can move the part to be welded back and forth according to the change of the welding position. At the same time, it can be adjusted in conjunction with the monitoring welding assembly 4 to accurately correspond to the change of the welding position and ensure that the monitoring welding assembly 4 can always correspond to the weld.
[0032] In this invention, workers can place the parts to be welded onto the automatic conveyor belt assembly 24 for splicing; simultaneously, the third electric telescopic assembly 26 can drive the fixed anti-rotation assembly 27 to move, achieving the purpose of clamping the two sides of the parts to be welded by the two anti-rotation assemblies 27; the hydraulic cylinder assembly 21 can push the moving plate 22 to move, facilitating the increase of the welding range of the monitored welding assembly 4 and ensuring the stability during welding; the motor assembly 25 drives the horizontal shaft 13 to rotate, and the horizontal shaft 13 causes the sleeve 16 to drive the two anti-rotation plates 15 to rotate; the second electric telescopic assembly 18 can bring the anti-rotation plates 15 closer to the second gear 12 or the third gear 19; when the first gear 12 on the same side... When the second gear 12 and the contact plate 15 or the third gear 19 on the other side and another contact plate 15 are in contact, the mounting component can be rotated or the first gear 10 can be rotated. The deflection angle can be controlled and the third gear 19 can be rotated back and forth. The moving component 7 can pull the inclined push rod 2 to drive the support frame 3 to deflect the rotating mounting frame 5. The first electric telescopic component 6 can deflect the monitored welding component 4 relative to the rotating mounting frame 5 to accurately control the monitored welding component 4 to weld the part to be welded. It can also cooperate with the automatic conveyor belt component 24 to drive the part to be welded to move back and forth, and improve the speed at which the monitored welding component 4 aligns with the weld.
[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An arc welding trajectory control system with self-correcting function, comprising a main body (1) for welding equipment installation and control, wherein a mounting frame (23) is mounted on the main body (1), and a drive mechanism is installed inside the mounting frame (23), characterized in that: The drive mechanism is provided with a second gear (12) and a third gear (19). A swing arm (14) is fixed on the mounting component. A moving port (8) is opened on the swing arm (14). A transmission mechanism is provided on the mounting component. A moving part (7) is installed on the transmission mechanism. The transmission mechanism is connected to the second gear (12). A support frame (3) is installed on the swing arm (14). A rotating mounting frame (5) is rotatably connected to the support frame (3). A control mechanism with monitoring function is installed at one end of the rotating mounting frame (5). A welding component (4) is provided on the control mechanism. A slanted push rod (2) is rotatably connected to the upper end of the moving part (7). The slanted push rod (2) is rotatably connected to the lower end of the support frame (3).
2. The arc welding trajectory control system with self-correction function according to claim 1, characterized in that: The drive mechanism includes a motor assembly (25) installed in the mounting bracket (23). The output shaft of the motor assembly (25) is fixed to a horizontal shaft (13). The second gear (12) and the third gear (19) are rotatably sleeved on the horizontal shaft (13). The lower end of the third gear (19) is connected to a swing mechanism. The swing mechanism is connected to the main body (1) for welding equipment installation control. A second electric telescopic assembly (18) is installed on the mounting component. A sleeve (16) is rotatably sleeved on the second electric telescopic assembly (18). The sleeve (16) is slidably sleeved on the horizontal shaft (13). Both ends of the sleeve (16) are fixed with abutment plates (15). The two abutment plates (15) are located on opposite sides of the second gear (12) and the third gear (19).
3. The arc welding trajectory control system with self-correction function according to claim 2, characterized in that: The swing mechanism includes an end gear ring disposed on the upper end of the main body (1) for installing and controlling the welding equipment. The mounting component is rotatably connected to the main body (1) for installing and controlling the welding equipment. The end gear ring meshes with the third gear (19).
4. The arc welding trajectory control system with self-correction function according to claim 3, characterized in that: The transmission mechanism includes a lead screw nut component (11) rotatably sleeved on the mounting component. One end of the lead screw nut component (11) is fixed with a first gear (10). The first gear (10) and the second gear (12) mesh with each other. A lead screw (9) is screwed into the lead screw nut component (11). One end of the lead screw (9) is fixed to the lower end of the moving component (7).
5. The arc welding trajectory control system with self-correction function according to claim 4, characterized in that: The welding assembly (4) is a welding assembly (4) with monitoring; the control mechanism includes a first electric telescopic assembly (6) rotatably connected to the other side of the lower end of the rotating mounting frame (5), the output piston rod end of the first electric telescopic assembly (6) is rotatably connected to one end of the welding assembly (4) with monitoring, and the welding assembly (4) with monitoring is rotatably connected to one end of the rotating mounting frame (5).
6. The arc welding trajectory control system with self-correction function according to claim 5, characterized in that: The second electric telescopic assembly (18) is equipped with two U-shaped positioning elements (17), and the second gear (12) and the third gear (19) are located between the two U-shaped positioning elements (17).
7. The arc welding trajectory control system with self-correction function according to claim 6, characterized in that: The upper end of the main body (1) for the installation and control of the welding equipment is provided with a reciprocating mechanism, and a moving plate (22) is provided on the reciprocating mechanism. The support frame (3) is rotatably connected to the upper end of the moving plate (22), and the end gear ring is fixed to the upper end of the moving plate (22).
8. The arc welding trajectory control system with self-correction function according to claim 7, characterized in that: The reciprocating mechanism includes an installation groove (20) set on the upper end of the main body (1) for welding equipment installation and control. A hydraulic cylinder assembly (21) is fixed on one side wall of the installation groove (20). The piston rod end of the hydraulic cylinder assembly (21) is fixed on one side of the moving plate (22). The moving plate (22) is slidably installed in the installation groove (20).
9. The arc welding trajectory control system with self-correction function according to claim 8, characterized in that: An automatic conveyor belt assembly (24) is fixed on one side of the main body (1) for installing and controlling the welding equipment, and the welding assembly (4) with monitoring is located at the upper end of the automatic conveyor belt assembly (24). Both sides of the automatic conveyor belt assembly (24) are provided with abutting rotation assemblies (27). One of the abutting rotation assemblies (27) is fixedly connected to the automatic conveyor belt assembly (24), and the other abutting rotation assemblies (27) is equipped with a third electric telescopic assembly (26). The third electric telescopic assembly (26) is installed on the automatic conveyor belt assembly (24).
10. The arc welding trajectory control system with self-correction function according to claim 9, characterized in that: The control method of the control system includes the following steps: S1. The staff can place the parts to be welded on the automatic conveyor belt assembly (24) for splicing; at the same time, the third electric telescopic assembly (26) can drive the fixed anti-rotation assembly (27) to move and achieve the purpose of clamping the two anti-rotation assemblies (27) on both sides of the parts to be welded. S2, the motor assembly (25) drives the horizontal shaft 13 to rotate, and the horizontal shaft 13 causes the sleeve 16 to drive the two abutment plates 15 to rotate. Through the second electric telescopic assembly 18, the two abutment plates 15 can abut against the second gear 12 and the third gear 19 as needed to carry out transmission. S3, the rotation of the third gear (19) can drive the mounting bracket (23) to rotate under the cooperation of the end gear ring, and the rotation of the second gear (12) can drive the first gear (10) and the screw nut (11) to move the moving part (7) to control the angle of the rotating mounting bracket (5); S4. The moving plate (22) can be moved by the hydraulic cylinder assembly (21), which facilitates the increase of the welding range of the monitored welding assembly (4); S5. Through the cooperation of the first electric telescopic component (6) and the welding component (4) with monitoring, the angle of the welding component (4) with monitoring can be further adjusted; at the same time, the welding component (4) with monitoring can upload the captured image in real time so as to analyze the changes in the position to be welded independently. S6. According to the change of welding position, the automatic conveyor belt assembly (24) can drive the part to be welded to move back and forth. At the same time, with the adjustment of the monitored welding assembly (4), it can accurately correspond to the change of welding position and ensure that the monitored welding assembly (4) can always correspond to the weld.
Citation Information
Patent Citations
Robot welding track planning device based on sensor control
CN119927936A