Welding device for metal part machining

Abstract

The invention belongs to the technical field of welding, and particularly relates to a metal part machining welding device which comprises a base, a linear sliding rail is fixedly mounted on one side of the upper end face of the base, a welding robot is slidably arranged on the linear sliding rail, and a supporting plate is fixedly connected to one side of the upper end face of the base. An electric chuck is fixedly connected to one side of the upper end of the supporting plate, and a branch pipe feeding and positioning assembly is further arranged on the base. The branch pipe feeding and positioning assembly comprises a transverse moving frame connected to one side of the upper end face of the base in a sliding mode. By means of the branch pipe feeding and positioning assembly, automatic and accurate butt joint of the branch pipe and the main pipe is achieved, manual operation is avoided, and the labor intensity is remarkably reduced. All the branch pipes can be directionally sorted firstly, so that the branch pipes form queues which are consistent in orientation and are regularly arranged. And then, a plurality of positioning blocks execute one-time synchronous grabbing and alignment along a preset path. And the problems of visual identification interference, grabbing failure, direction errors and the like caused by disordered stacking of the branch pipes are avoided.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically a welding device for metal parts processing. Background Technology

[0002] Metal parts refer to individual components or assemblies made from metal materials through processing, including metal pipes. During the production and processing of metal pipes, multiple branch pipes are often welded to the main pipe to achieve uniform fluid distribution.

[0003] Patent CN118204657B discloses a pipe welding device, including a welding table with two support frames in the middle. Each support frame is fixedly connected to a retractable drive rod, and each drive rod is fixedly connected to a clamp. The two clamps are arranged opposite each other, and simultaneously position and fix two pipes. Several clamping mechanisms are rotatably arranged at both ends of each clamp, and these clamping mechanisms can abut against the pipe. Positioning mechanisms are also provided at both ends of each clamp, and these positioning mechanisms can simultaneously apply the same pressure to multiple positions on the pipe. In this invention, the control system can adjust the tightness of the axial connection and the coaxiality of the radial connection between the two pipes by controlling the drive rod, the positioning mechanisms, and the pressing mechanism.

[0004] However, the above technical solutions still have the following shortcomings in practical applications:

[0005] When welding branch pipes to main pipes, the connection between the branch pipes and main pipes usually relies on manual operation. Workers need to manually align the branch pipes with the openings on the main pipe, adjust them to a vertical position, and fix them with clamps. To meet the installation requirements of the subsequent piping system, multiple branch pipes also need to be arranged at equal intervals along the main pipe. Only after the above positioning is completed can the intersecting joints be welded. However, when there are a large number of branch pipes, the frequent manual positioning work is extremely labor-intensive. To solve this problem, an attempt was made to use a robotic arm to replace manual labor for grasping and aligning branch pipes. However, this approach faces new problems. Branch pipes are mostly mass-produced and are usually stacked haphazardly in containers. The robotic arm relies on a vision positioning system to identify and grasp branch pipes. This disordered state will seriously interfere with the accuracy of vision recognition, leading to grasping failure or inaccurate positioning. In addition, one end of the branch pipe usually has a connecting flange. During welding, the flangeless end needs to be connected to the main pipe. If vision recognition is interfered with, it is very easy to make a mistake in the grasping direction, causing the flange end to be misaligned with the main pipe, thus seriously affecting the welding quality. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a welding device for metal parts processing.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a welding device for metal parts processing, including a base, a linear slide rail fixedly installed on one side of the upper end face of the base, a welding robot slidably arranged on the linear slide rail, a support plate fixedly connected to one side of the upper end face of the base, an electric chuck fixedly connected to one side of the upper end face of the support plate, and a branch pipe feeding and positioning component also provided on the base.

[0008] The branch pipe feeding and positioning assembly includes a transverse frame slidably connected to one side of the upper end face of the base. A lifting frame is slidably connected to one side of the transverse frame. A flip plate is rotatably mounted at one end of the lifting frame. Adjusting rods are slidably mounted on both sides of the flip plate. Multiple positioning blocks are equidistantly mounted on the adjusting rods, with the rightmost positioning block fixedly connected to the adjusting rod and the remaining positioning blocks slidably connected to the adjusting rod. A support column is fixedly connected to one side of the upper end face of the base. A rotating plate is rotatably mounted on one side of the upper end face of the support column. Connecting rods are fixedly connected to the four corners of one side face of the rotating plate. A fixing plate is fixedly connected to one end of each connecting rod. Limiting plates are slidably connected to both sides of the sliding groove of the rotating plate. One end of the limiting plate is in contact with one side face of the fixing plate. A cover plate is rotatably mounted on the upper side of the rotating plate.

[0009] Preferably, a threaded rod two is threadedly connected to one side of the lower end of the transverse frame, and both ends of the threaded rod two are rotatably mounted on the base. A motor three is fixedly connected to one side of the upper end face of the base, and the output end of the motor three is fixedly connected to one end of the threaded rod two. A threaded rod three is threadedly connected to one end of the lifting frame, and both ends of the threaded rod three are rotatably mounted on the transverse frame. A motor four is fixedly connected to one end of the transverse frame, and the output end of the motor four is fixedly connected to one end of the threaded rod three.

[0010] Preferably, a motor six is ​​fixedly connected to one end of the lifting frame, and the output end of the motor six is ​​fixedly connected to one side of the tilting plate. Two bidirectional threaded rods one is rotatably provided at both ends of one side of the tilting plate, and the two sides of the bidirectional threaded rods one are respectively threadedly connected to the adjusting rods on both sides. A motor five is fixedly connected to one end of the tilting plate, and the output end of the motor five is fixedly connected to one end of the bidirectional threaded rods one.

[0011] Preferably, one end of each of the leftmost and rightmost positioning blocks is rotatably provided with a connecting rod 1, and one end of each of the other positioning blocks is rotatably provided with a connecting rod 2. One end of the connecting rod 1 is rotatably connected to one end of the connecting rod 2, and the ends of two adjacent connecting rods 2 are rotatably connected.

[0012] Preferably, the leftmost positioning block is threadedly connected to a threaded rod four, both ends of which are rotatably mounted on an adjusting rod. One end of the adjusting rod is fixedly connected to a motor seven, and the output end of the motor seven is fixedly connected to one end of the threaded rod four.

[0013] Preferably, a motor is fixedly connected to one side of the upper end of the support column, the output end of the motor is fixedly connected to one side of the rotating plate, and a bidirectional threaded rod is rotatably provided at both ends of the sliding groove of the rotating plate. The two sides of the bidirectional threaded rod are respectively threadedly connected to the limiting plates on both sides. A motor is fixedly connected to one side of the rotating plate, and the output end of the motor is fixedly connected to one end of the bidirectional threaded rod.

[0014] Preferably, guide rods are slidably connected to both sides of the cover plate, a support rod is fixedly connected to one end of the guide rod, a pressure plate is rotatably mounted on one end of the support rod, a push block is slidably connected to the groove of the pressure plate, a motor is fixedly connected to one side of the upper end of the rotating plate, and the output end of the motor is fixedly connected to one end of the cover plate.

[0015] Preferably, a cylinder is fixedly connected to one side of the cover plate, the piston end of the cylinder is fixedly connected to one side of the support rod, a threaded rod is threadedly connected to one side of the push block, both ends of the threaded rod are rotatably mounted on the pressure plate, a motor is fixedly connected to one end of the pressure plate, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0016] Preferably, a mounting plate is fixedly connected to one side of the limiting plate, a plurality of spring dampers are fixedly connected to one side of the mounting plate, a vibration plate is fixedly connected to the piston end of the spring damper, the vibration plate is inserted into and slidably connected to one side of the limiting plate, and a vibration motor is fixedly installed on one side of the vibration plate.

[0017] Preferably, one end of the support rod is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to one end of the pressure plate.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The welding device for metal parts processing described in this invention utilizes a branch pipe feeding and positioning component to achieve automatic and precise docking of branch pipes and main pipes, avoiding manual operation and significantly reducing labor intensity. Compared with the traditional method of robotic arms picking up and docking one branch pipe at a time, the core advantage of this method lies in first orienting and sorting all branch pipes to form a queue with consistent orientation and regular arrangement. Subsequently, multiple positioning blocks perform simultaneous picking and alignment along a preset path. This method completely avoids problems such as visual recognition interference, picking failure, and directional errors caused by disordered stacking of branch pipes, thereby ensuring the continuity and stability of the welding process. At the same time, the simultaneous "batch" picking greatly reduces the number of reciprocating picking operations, fundamentally improving the overall welding efficiency.

[0020] 2. In the welding device for metal parts processing described in this invention, when the pressure plate rises, it can be driven to rotate. If a branch pipe falls onto the pressure plate, it will fall off due to the rotation of the pressure plate. This avoids the situation where an unclamped branch pipe falls onto the pressure plate and gets stuck between the pressure plate and the clamped branch pipe when the pressure plate rises, causing the pusher block to be unable to perform its pushing action smoothly. This further ensures the smooth progress of the welding work. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure at the rotating plate.

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the cover plate;

[0025] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0026] Figure 5 yes Figure 3 Enlarged view of a section at point B in the middle;

[0027] Figure 6 This is a three-dimensional structural diagram of the welding robot.

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure at the transverse sliding frame;

[0029] Figure 8 yes Figure 7 Enlarged view of a section at point C;

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure at the limiting plate.

[0031] Figure 10 yes Figure 9 Enlarged view of a section at point D;

[0032] Figure 11 This is a schematic diagram of the three-dimensional structure at the mounting plate.

[0033] Figure 12 This is a schematic diagram of the three-dimensional structure of the flip panel.

[0034] In the diagram: 1. Base; 2. Welding robot; 3. Support plate; 4. Horizontal movement frame; 5. Lifting frame; 6. Limiting plate; 7. Fixing plate; 8. Cover plate; 9. Rotating plate; 10. Support column; 11. Cylinder; 12. Guide rod; 13. Motor 1; 14. Connecting rod; 15. Vibration motor; 16. Spring damper; 17. Vibration plate; 18. Mounting plate; 19. Support rod; 20. Motor 2; 21. Pressure plate; 22. Threaded rod 1; 23. Electric... 24. Moving chuck; 25. Linear slide rail; 26. Motor 3; 27. Threaded rod 2; 28. Double-direction threaded rod 1; 29. ​​Motor 4; 20. Threaded rod 3; 31. Motor 5; 32. Motor 6; 33. Tilting plate; 34. Adjusting rod; 35. Threaded rod 4; 36. Connecting rod 1; 37. Connecting rod 2; 38. Positioning block; 39. Motor 8; 40. Double-direction threaded rod 2; 41. Motor 9; 42. Push block; 43. Motor 10. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described 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.

[0036] Please refer to Figures 1-12 The present invention provides a technical solution: a welding device for metal parts processing, including a base 1, a linear slide rail 24 fixedly installed on one side of the upper end face of the base 1, a welding robot 2 slidably arranged on the linear slide rail 24, a support plate 3 fixedly connected to one side of the upper end face of the base 1, an electric chuck 23 fixedly connected to one side of the upper end face of the support plate 3, and a branch pipe feeding and positioning component is also provided on the base 1.

[0037] The branch pipe feeding and positioning assembly includes a transverse frame 4 slidably connected to one side of the upper surface of the base 1. A lifting frame 5 is slidably connected to one side of the transverse frame 4. A flip plate 32 is rotatably mounted at one end of the lifting frame 5. Adjusting rods 33 are slidably mounted on both sides of the flip plate 32. Multiple positioning blocks 38 are equidistantly mounted on the adjusting rods 33, and the rightmost positioning block 38 is fixedly connected to the adjusting rod 33. The remaining positioning blocks 38 are slidably connected to the adjusting rod 33. A support column 10 is fixedly connected to one side of the upper surface of the base 1. A rotating plate 9 is rotatably mounted on one side of the upper end of the support column 10. Connecting rods 14 are fixedly connected to the four corners of one side of the rotating plate 9. A fixing plate 7 is fixedly connected to one end of the connecting rod 14. Limiting plates 6 are slidably connected to both sides of the sliding groove of the rotating plate 9. One end of the limiting plate 6 is in contact with one side of the fixing plate 7. A cover plate 8 is rotatably mounted on one side of the upper end of the rotating plate 9.

[0038] In this embodiment, as Figure 2 , Figure 3 , Figures 5-12 As shown, a threaded rod 26 is threadedly connected to one side of the lower end of the transverse frame 4. Both ends of the threaded rod 26 are rotatably mounted on the base 1. A motor 3 25 is fixedly connected to one side of the upper surface of the base 1. The output end of the motor 3 25 is fixedly connected to one end of the threaded rod 26. A threaded rod 3 29 is threadedly connected to one end of the lifting frame 5. Both ends of the threaded rod 3 29 are rotatably mounted on the transverse frame 4. A motor 4 28 is fixedly connected to one end of the transverse frame 4. The output end of the motor 4 28 is fixedly connected to one end of the threaded rod 3 29.

[0039] One end of the lifting frame 5 is fixedly connected to a motor 6 31. The output end of the motor 6 31 is fixedly connected to one side of the tilting plate 32. Two bidirectional threaded rods 27 are rotatably provided at both ends of one side of the tilting plate 32. The two sides of the bidirectional threaded rods 27 are respectively threadedly connected to the two adjusting rods 33 on both sides. One end of the tilting plate 32 is fixedly connected to a motor 5 30. The output end of the motor 5 30 is fixedly connected to one end of the bidirectional threaded rod 27.

[0040] One end of each of the leftmost and rightmost positioning blocks 38 is rotatably equipped with a connecting rod 36, and one end of each of the other positioning blocks 38 is rotatably equipped with a connecting rod 37. One end of the connecting rod 36 is rotatably connected to one end of the connecting rod 37, and the ends of two adjacent connecting rods 37 are rotatably connected.

[0041] The leftmost positioning block 38 is threadedly connected to a threaded rod 35. Both ends of the threaded rod 35 are rotatably mounted on the adjusting rod 33. One end of the adjusting rod 33 is fixedly connected to a motor 34. The output end of the motor 34 is fixedly connected to one end of the threaded rod 35.

[0042] A motor 13 is fixedly connected to one side of the upper end of the support column 10. The output end of the motor 13 is fixedly connected to one side of the rotating plate 9. Two bidirectional threaded rods 40 are rotatably installed at both ends of the sliding groove of the rotating plate 9. The two sides of the bidirectional threaded rods 40 are respectively threaded to the limit plates 6 on both sides. A motor 39 is fixedly connected to one side of the rotating plate 9. The output end of the motor 39 is fixedly connected to one end of the bidirectional threaded rod 40.

[0043] Guide rods 12 are slidably connected to both sides of the cover plate 8. A support rod 19 is fixedly connected to one end of the guide rod 12. A pressure plate 21 is rotatably set at one end of the support rod 19. A push block 42 is slidably connected to the groove of the pressure plate 21. A motor 43 is fixedly connected to one side of the upper end of the rotating plate 9. The output end of the motor 43 is fixedly connected to one end of the cover plate 8.

[0044] A cylinder 11 is fixedly connected to one side of the cover plate 8. The piston end of the cylinder 11 is fixedly connected to one side of the support rod 19. A threaded rod 22 is threadedly connected to one side of the push block 42. Both ends of the threaded rod 22 are rotatably mounted on the pressure plate 21. A motor 41 is fixedly connected to one end of the pressure plate 21. The output end of the motor 41 is fixedly connected to one end of the threaded rod 22.

[0045] A mounting plate 18 is fixedly connected to one side of the limiting plate 6. Multiple spring dampers 16 are fixedly connected to one side of the mounting plate 18. A vibrating plate 17 is fixedly connected to the piston end of the spring damper 16. The vibrating plate 17 is inserted into and slidably connected to one side of the limiting plate 6. A vibrating motor 15 is fixedly installed on one side of the vibrating plate 17.

[0046] Specifically, in existing technologies, the connection between branch pipes and main pipes is typically done manually when welding branch pipes to the main pipe. Workers must manually align the branch pipe with the openings on the main pipe, adjust it to a vertical position, and fix it with clamps. To meet the installation requirements of the subsequent piping system, multiple branch pipes need to be arranged equidistantly along the main pipe. Only after completing the above positioning can the intersecting joints be welded. However, when there are many branch pipes, the frequent manual positioning work is extremely labor-intensive. To solve this problem, attempts have been made to use robotic arms to replace manual labor for gripping and aligning branch pipes. However, this approach faces new problems. Branch pipes are often mass-produced and are usually stacked haphazardly in containers. The robotic arm relies on a vision positioning system to identify and grip the branch pipes, and this disordered state can severely interfere with the accuracy of vision recognition, leading to gripping failures or inaccurate positioning. In addition, one end of the branch pipe usually has a connecting flange, and the flangeless end needs to be connected to the main pipe during welding. If vision recognition is interfered with, it is very easy to make a mistake in the gripping direction, causing the flange end to be misaligned with the main pipe, thus seriously affecting the welding quality.

[0047] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0048] This method is applied to branch pipes of the same specifications in the same batch. First, place one end of the main pipe on the electric chuck 23 with the opening on the main pipe facing vertically upward, and then use the electric chuck 23 to clamp the end of the main pipe.

[0049] With the cooperation of the fixed plate 7, cover plate 8, and limiting plate 6, a frame structure is formed. The bottoms of the two limiting plates 6 cooperate to form a strip opening. According to the diameter of the branch pipe, the motor 839 drives the bidirectional threaded rod 40 to rotate, causing the two limiting plates 6 to slide simultaneously, adjusting the width of the strip opening so that this width is greater than the diameter of the branch pipe but less than the diameter of the flange. Then, multiple branch pipes in the container are poured into the frame structure at the same time. The branch pipes will slide down to the bottom of the frame structure under the action of gravity. At the same time, the vibration motor 15 is started, which, with the cooperation of the spring damper 16, causes the vibrating plate 17 to vibrate, causing multiple branch pipes to move continuously. Since the width of the strip opening is greater than the diameter of the branch pipe but less than the diameter of the flange, as the branch pipes continue to move, some branch pipes will pass through the strip opening, while the flange will be stuck at the strip opening. Furthermore, the multiple branch pipes passing through the strip opening will be arranged linearly. Meanwhile, the vision sensor on the welding robot 2 can detect the number of branch pipes passing through the strip opening. When this number is greater than or equal to the number of openings on the main pipe, the vibration motor 15 is turned off. Then, the two limiting plates 6 are driven to move closer to each other again, using the limiting plates 6 to clamp the multiple branch pipes arranged at the strip opening. At the same time, the motor 10 43 drives the cover plate 8 to rotate, using the cover plate 8 to cover the upper end of the frame structure. Then, the motor 11 drives the frame structure to rotate 180 degrees, and the branch pipes that are not clamped will fall onto the cover plate 8. At this time, the cylinder 11 can be used to drive the pressure plate 21 to move upward, so that the pressure plate 21 is in contact with the flange ends of the multiple branch pipes. At this time, the two limiting plates 6 can be driven to move slightly away, releasing the branch pipes. Since the branch pipes are supported by the pressure plate 21 at this time, the branch pipes will not fall downward. Then, motor 941 drives threaded rod 122 to rotate, causing push block 42 to move from one end of pressure plate 21 to the other. During the movement, push block 42 pushes the branch pipes arranged at the strip opening until the flanges of multiple branch pipes are tightly fitted. The horizontal and vertical positions of flip plate 32 can be adjusted by motor 325 driving threaded rod 26 and motor 428 driving threaded rod 329. Furthermore, based on the distance between the axes of two adjacent branch pipes arranged at the strip opening, motor 734 drives threaded rod 435 to rotate, causing the positioning block 38 on one side to slide on adjusting rod 33. Under the transmission cooperation of connecting rod 136 and connecting rod 237, multiple positioning blocks 38 can slide simultaneously, adjusting the distance between two adjacent positioning blocks 38 so that this distance is equal to the distance between the axes of two adjacent branch pipes.Simultaneously, by adjusting the lateral position of multiple positioning blocks 38, the multiple positioning blocks 38 are aligned with multiple branch pipes at the strip opening. Then, the motor 30 drives the bidirectional threaded rod 27 to rotate, causing the positioning blocks 38 on the two adjusting rods 33 to move closer together, so that the multiple positioning blocks 38 can clamp multiple branch pipes at the same time. At this time, the two limiting plates 6 are driven to move away from each other again until the positioning blocks 38 can remove the branch pipes from the strip opening. At this time, the flanges of the branch pipes face down. Then, the motor 31 drives the flipping plate 32 to rotate 180 degrees, so that the flanges of the branch pipes face up. Subsequently, according to the spacing of adjacent openings on the main pipe, the above spacing adjustment operation is repeated again, so that the axial spacing of adjacent branch pipes is equal to the axial spacing of adjacent openings. Then, the multiple branch pipes are driven down, so that the multiple branch pipes can be connected to the openings of the main pipe at the same time. At this time, the welding robot 2 can be used to weld the joint between the branch pipes and the main pipe. Furthermore, the welding robot 2 can be driven to move laterally through the linear slide rail 24 to weld branch pipes in different directions. This achieves automated and precise docking of branch pipes and main pipes, eliminating manual operation and significantly reducing labor intensity. Compared to the traditional method of robotic arms picking up and docking pipes one by one, the core advantage of this method lies in first orienting and sorting all branch pipes to form a queue with consistent orientation and regular arrangement. Subsequently, multiple positioning blocks 38 perform simultaneous gripping and alignment along a preset path. This method completely avoids problems such as visual recognition interference, gripping failure, and directional errors caused by disordered stacking of branch pipes, thus ensuring the continuity and stability of the welding process. At the same time, the simultaneous gripping in a "batch" greatly reduces the number of reciprocating gripping operations, fundamentally improving overall welding efficiency.

[0050] Furthermore, the number of branch pipes clamped at one time can be controlled by controlling the lateral movement distance of the transverse frame 4, so as to ensure that the number of branch pipes clamped matches the number of openings.

[0051] After a main pipe is welded to a branch pipe, the main pipe is removed from the electric chuck 23, and then the unwelded main pipe is placed on the electric chuck 23. The above operation is repeated to achieve batch welding of main pipes and branch pipes.

[0052] In this embodiment, as Figure 4 As shown, a motor 20 is fixedly connected to one end of the support rod 19, and the output end of the motor 20 is fixedly connected to one end of the pressure plate 21.

[0053] Specifically, in the above embodiment, although the clamped branch pipe can be moved away from the unclamped branch pipe by using the flipping frame structure so that the pusher 42 can push the branch pipe to the fitting state, when the unclamped branch pipe falls downwards, it is easy to fall onto the pressure plate 21. As a result, when the pressure plate 21 rises, the unclamped branch pipe gets stuck between the pressure plate 21 and the clamped branch pipe, and the pusher 42 cannot perform the pushing action smoothly.

[0054] Therefore, to avoid this problem, the working principle of this embodiment is as follows:

[0055] When the pressure plate 21 rises, it can be driven to rotate by the motor 20. If the branch pipe falls onto the pressure plate 21, it will fall off due to the rotation of the pressure plate 21. This avoids the situation where the branch pipe that is not clamped falls onto the pressure plate 21 and gets stuck between the pressure plate 21 and the clamped branch pipe when the pressure plate 21 rises, causing the push block 42 to be unable to perform the pushing action smoothly. This further ensures the smooth progress of the welding work.

[0056] Working principle: Place one end of the main pipe on the electric chuck 23 with the opening on the main pipe facing vertically upwards, and then use the electric chuck 23 to clamp the end of the main pipe. With the cooperation of the fixing plate 7, cover plate 8, and limiting plate 6, a frame structure is formed, and the bottoms of the two limiting plates 6 cooperate to form a strip opening. According to the diameter of the branch pipe, the motor 8 39 drives the bidirectional threaded rod 2 40 to rotate, so that the two limiting plates 6 slide simultaneously, adjusting the width of the strip opening, making this width greater than the diameter of the branch pipe and less than the diameter of the flange. Then, multiple branch pipes from the container are simultaneously poured into the frame structure. Under gravity, the branch pipes slide to the bottom of the frame structure. Simultaneously, the vibration motor 15 is activated, causing the vibrating plate 17 to vibrate in conjunction with the spring damper 16, thus propelling the multiple branch pipes continuously. Since the width of the strip opening is greater than the diameter of the branch pipe but less than the diameter of the flange, some branch pipes will pass through the strip opening as the branch pipes continue to move, while the flange will be stuck at the opening. Furthermore, the multiple branch pipes passing through the strip opening will be arranged linearly. At the same time, the vision sensor on the welding robot 2 can detect the number of branch pipes passing through the strip opening. When this number is greater than or equal to the number of openings on the main pipe, the vibration motor 15 is turned off. Then, the two limiting plates 6 are driven closer together again, using the limiting plates 6 to clamp the multiple branch pipes arranged at the strip opening. At the same time, motor 10 43 drives the cover plate 8 to rotate, using the cover plate 8 to cover the upper end of the frame structure. Then, motor 13 drives the frame structure to rotate 180 degrees, and the branch pipes that are not clamped will fall onto the cover plate 8. At this time, cylinder 11 can be used to drive the pressure plate 21 to move upward, so that the pressure plate 21 is in contact with the flange ends of the multiple branch pipes. At this time, the two limiting plates 6 can be driven slightly away to release the branch pipes. Since the branch pipes are supported by the pressure plate 21 at this time, the branch pipes will not fall downward. Then, motor 9 41 drives the threaded rod 22 to rotate, so that the push block 42 moves from one end of the pressure plate 21 to the other end. During the movement, the push block 42 will push the branch pipes arranged at the strip opening until the flanges of the multiple branch pipes are tightly in contact. The horizontal and vertical positions of the flip plate 32 can be adjusted by rotating the threaded rod 26 driven by motor 3 25 and the threaded rod 29 driven by motor 4 28. Furthermore, based on the distance between the axes of two adjacent branch pipes arranged at the strip opening, the threaded rod 35 driven by motor 7 34 is rotated, causing the positioning block 38 on one side to slide on the adjusting rod 33. Under the transmission cooperation of connecting rod 1 36 and connecting rod 2 37, multiple positioning blocks 38 can slide simultaneously, adjusting the distance between two adjacent positioning blocks 38 so that this distance is equal to the distance between the axes of two adjacent branch pipes.Simultaneously, by adjusting the lateral position of multiple positioning blocks 38, the multiple positioning blocks 38 are aligned with multiple branch pipes at the strip opening. Then, the motor 30 drives the bidirectional threaded rod 27 to rotate, causing the positioning blocks 38 on the two adjusting rods 33 to move closer together, so that the multiple positioning blocks 38 can clamp multiple branch pipes at the same time. At this time, the two limiting plates 6 are driven to move away from each other again until the positioning blocks 38 can remove the branch pipes from the strip opening. At this time, the flanges of the branch pipes face down. Then, the motor 31 drives the flipping plate 32 to rotate 180 degrees, so that the flanges of the branch pipes face up. Subsequently, according to the spacing of adjacent openings on the main pipe, the above spacing adjustment operation is repeated again, so that the axial spacing of adjacent branch pipes is equal to the axial spacing of adjacent openings. Then, the multiple branch pipes are driven down, so that the multiple branch pipes can be connected to the openings of the main pipe at the same time. At this time, the welding robot 2 can be used to weld the joint between the branch pipes and the main pipe. Furthermore, the welding robot 2 can be driven to move laterally through the linear slide rail 24 to weld branch pipes in different directions. Furthermore, the number of branch pipes clamped at one time can be controlled by controlling the lateral movement distance of the transverse frame 4, ensuring that the number of clamped branch pipes matches the number of openings. After a main pipe is welded to a branch pipe, the main pipe is removed from the electric chuck 23, and then the unwelded main pipe is placed on the electric chuck 23. The above operation is repeated to achieve batch welding of main pipes and branch pipes. When the pressure plate 21 rises, the pressure plate 21 can be rotated by the motor 20. If a branch pipe falls onto the pressure plate 21, it will fall off due to the rotation of the pressure plate 21. This avoids the situation where an unclamped branch pipe falls onto the pressure plate 21 and gets stuck between the pressure plate 21 and the clamped branch pipe when the pressure plate 21 rises, preventing the pusher block 42 from performing its pushing action smoothly.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for processing metal parts, comprising a base (1), characterized in that: A linear slide rail (24) is fixedly installed on one side of the upper end face of the base (1), and a welding robot (2) is slidably mounted on the linear slide rail (24). A support plate (3) is fixedly connected to one side of the upper end face of the base (1), and an electric chuck (23) is fixedly connected to one side of the upper end of the support plate (3). A branch pipe feeding and positioning assembly is also provided on the base (1). The branch pipe feeding and positioning assembly includes a transverse frame (4) slidably connected to one side of the upper end face of the base (1). A lifting frame (5) is slidably connected to one side of the transverse frame (4). A flip plate (32) is rotatably provided at one end of the lifting frame (5). Adjusting rods (33) are slidably provided on both sides of the flip plate (32). Multiple positioning blocks (38) are equidistantly sleeved on the adjusting rods (33). The rightmost positioning block (38) is fixedly connected to the adjusting rod (33), and the remaining positioning blocks (38) are slidably connected to the adjusting rod (33). The base (1) is connected to a support column (10) fixedly connected to one side of the upper end face. A rotating plate (9) is rotatably provided on one side of the upper end face of the support column (10). A connecting rod (14) is fixedly connected to each of the four corners of one side end face of the rotating plate (9). A fixing plate (7) is fixedly connected to one end of the connecting rod (14). A limiting plate (6) is slidably connected to both sides of the groove of the rotating plate (9). One end of the limiting plate (6) is in contact with one side end face of the fixing plate (7). A cover plate (8) is rotatably provided on one side of the upper end face of the rotating plate (9).

2. The welding apparatus for metal part processing according to claim 1, characterized in that: The lower end of the transverse frame (4) is threaded with a threaded rod two (26). Both ends of the threaded rod two (26) are rotatably mounted on the base (1). The upper end of the base (1) is fixedly connected with a motor three (25). The output end of the motor three (25) is fixedly connected to one end of the threaded rod two (26). The lifting frame (5) is threaded with a threaded rod three (29). Both ends of the threaded rod three (29) are rotatably mounted on the transverse frame (4). The transverse frame (4) is fixedly connected with a motor four (28). The output end of the motor four (28) is fixedly connected to one end of the threaded rod three (29).

3. The welding apparatus for metal part processing according to claim 1, characterized in that: One end of the lifting frame (5) is fixedly connected to a motor six (31). The output end of the motor six (31) is fixedly connected to one side of the flip plate (32). Two bidirectional threaded rods one (27) are rotatably provided on both ends of one side of the flip plate (32). The two sides of the bidirectional threaded rods one (27) are respectively threaded to the adjusting rods (33) on both sides. One end of the flip plate (32) is fixedly connected to a motor five (30). The output end of the motor five (30) is fixedly connected to one end of the bidirectional threaded rods one (27).

4. The welding apparatus for metal part processing according to claim 1, characterized in that: One end of each of the leftmost and rightmost positioning blocks (38) is rotatably provided with a connecting rod (36), and one end of each of the other positioning blocks (38) is rotatably provided with a connecting rod (37). One end of the connecting rod (36) is rotatably connected to one end of the connecting rod (37), and the ends of two adjacent connecting rods (37) are rotatably connected.

5. The welding apparatus for metal part processing according to claim 1, characterized in that: The leftmost positioning block (38) is threadedly connected to a threaded rod four (35). Both ends of the threaded rod four (35) are rotatably mounted on the adjusting rod (33). One end of the adjusting rod (33) is fixedly connected to a motor seven (34). The output end of the motor seven (34) is fixedly connected to one end of the threaded rod four (35).

6. The welding apparatus for metal part processing according to claim 1, characterized in that: A motor (13) is fixedly connected to one side of the upper end of the support column (10). The output end of the motor (13) is fixedly connected to one side of the rotating plate (9). Two bidirectional threaded rods (40) are rotatably arranged at both ends of the sliding groove of the rotating plate (9). The two sides of the bidirectional threaded rods (40) are respectively threaded to the limit plates (6) on both sides. A motor (39) is fixedly connected to one side of the rotating plate (9). The output end of the motor (39) is fixedly connected to one end of the bidirectional threaded rods (40).

7. The welding apparatus for metal part processing according to claim 1, characterized in that: Guide rods (12) are slidably connected to both sides of the cover plate (8). A support rod (19) is fixedly connected to one end of the guide rod (12). A pressure plate (21) is rotatably set at one end of the support rod (19). A push block (42) is slidably connected to the groove of the pressure plate (21). A motor (43) is fixedly connected to one side of the upper end of the rotating plate (9). The output end of the motor (43) is fixedly connected to one end of the cover plate (8).

8. The welding apparatus for metal part processing according to claim 7, characterized in that: A cylinder (11) is fixedly connected to one side of the cover plate (8). The piston end of the cylinder (11) is fixedly connected to one side of the support rod (19). A threaded rod (22) is threadedly connected to one side of the push block (42). Both ends of the threaded rod (22) are rotatably mounted on the pressure plate (21). A motor (41) is fixedly connected to one end of the pressure plate (21). The output end of the motor (41) is fixedly connected to one end of the threaded rod (22).

9. The welding apparatus for metal part processing according to claim 1, characterized in that: A mounting plate (18) is fixedly connected to one side of the limiting plate (6), and a plurality of spring dampers (16) are fixedly connected to one side of the mounting plate (18). A vibrating plate (17) is fixedly connected to the piston end of the spring damper (16). The vibrating plate (17) is inserted into and slidably connected to one side of the limiting plate (6). A vibrating motor (15) is fixedly installed on one side of the vibrating plate (17).

10. A welding apparatus for metal part processing according to claim 7, characterized in that: One end of the support rod (19) is fixedly connected to a motor (20), and the output end of the motor (20) is fixedly connected to one end of the pressure plate (21).

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