Steel pipe pole ladder stand welding robot and welding process thereof

Abstract

The invention relates to the technical field of ladder stand welding equipment, in particular to a steel pipe pole ladder stand welding robot and a welding technology thereof.The steel pipe pole ladder stand welding robot comprises a rack, a robot body arranged on the rack and a mounting frame arranged on the rack; the mounting frame is provided with a first fixing assembly used for fixing a long rod of the crawling ladder and a second fixing assembly used for fixing a short rod, and the mounting frame is provided with a conveying assembly used for driving the long rod and the short rod welded to the long rod to move; the first fixing assembly comprises a mounting rod arranged on the conveying assembly, a first fixing rod slidably connected to the mounting rod and a second fixing rod fixed to the mounting rod, and a moving groove allowing the first fixing assembly to move is formed in the mounting frame. A pushing plate used for pushing the first fixing rod to move in the direction close to the second fixing rod is arranged in the moving groove. The welding device has the effect of improving the welding efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of ladder welding equipment, and in particular to a steel pipe ladder welding robot and a welding process thereof. Background Art

[0002] The steel tube pole ladder is a facility used in power lines and communication lines. It is usually installed on steel tube poles and is suitable for steel tube poles of various heights and angles. It can be used for inspection, maintenance and overhaul. Especially in some remote areas or high-altitude areas, the role of the power steel tube pole ladder is more obvious. The steel tube pole ladder includes two long poles and multiple short poles. The multiple short poles and two long poles are fixed by welding. Finally, the welded steel tube pole ladder is fixed on the steel tube pole. The ladder needs to be fixed with welding tools when welding, and then welded by a welding robot.

[0003] For example, a Chinese patent document with the announcement number CN204934986U discloses a pit ladder welding tool, including a base plate, two opposite horizontal brackets are fixed on the base plate, a number of vertical brackets are vertically fixed between the two horizontal brackets, a number of positioning blocks and L-shaped positioning clamps are fixed with the horizontal brackets and vertical brackets as reference points, and quick clamps are provided next to the positioning blocks and L-shaped positioning clamps. The horizontal brackets and vertical brackets of the pit ladder welding tool are fixed to the base plate with bolts, and the parts to be welded of the pit ladder are placed on the tool, close to the positioning blocks and L-shaped positioning clamps, and compressed with quick clamps, and finally the fixed horizontal brackets and vertical brackets are welded by a welding robot.

[0004] In the above-mentioned related technologies, during welding, although the ladder can be fixed by means of horizontal brackets, vertical brackets and positioning clamps, since there are usually multiple short rods on the ladder, each short rod on the ladder needs to be fixed by means of multiple quick clamps. Then, after welding is completed, each quick clamp needs to be unlocked to remove the ladder after welding, thereby reducing the welding efficiency. Summary of the invention

[0005] The present application provides a steel pipe rod ladder welding robot and a welding process thereof, aiming to solve the problem of decreased ladder welding efficiency in related technologies.

[0006] First aspect: The present application provides a steel pipe ladder welding robot that adopts the following technical solution: The lifting of the lifting device is a process of stepping up and down of the lifting device, and the lifting of the lifting device is a process of stepping up and down of the lifting device, and the lifting of the lifting device is a process of stepping up and down of the lifting device, wherein the lifting device is a process of stepping up and down of the lifting device, and the lifting of the lifting device is a process of stepping up and down of the lifting device.

[0007] By adopting the above technical scheme, when welding the ladder, first, the long rod of the ladder is fixed to the conveying assembly through the first fixed rod and the second fixed rod, and the conveying assembly is rotated to drive the fixed long rod to move, so that the long rod is completely on the conveying assembly, and the short rod is moved to the bottom of the rotating wheel, and then the rotating wheel drives the pushing part to rotate to fix the short rod through the pushing part, and finally the welding robot body welds the short rod, and after the welding is completed, the pushing part and the short rod are directly separated, and the conveying assembly drives the welded short rod and the long rod to move a specified distance, and then the unwelded short rods are placed under the pushing part in turn, and finally the welding of the ladder is realized. After the welding is completed, the ladder can be directly removed from the mounting frame, so that it is more convenient when welding.

[0008] Optionally, a feeding assembly for conveying the short rod to the bottom of the rotating wheel is provided on the mounting frame; the feeding assembly includes a supporting frame fixed on the mounting frame, a feeding barrel fixed on the supporting frame, a feeding plate provided under the feeding barrel, and a feeding cylinder for driving the feeding plate to move closer to or away from a second fixed assembly, and the upper and lower end surfaces of the feeding barrel are both arranged to be openings.

[0009] By adopting the above technical solution, multiple short rods are placed in the feeding barrel, and then the short rods fall onto the feeding plate under the action of gravity. The feeding plate is driven to move by the feeding cylinder, and then the short rods are transported to the bottom of the rotating wheel, thereby achieving greater convenience in transporting the short rods.

[0010] Optionally, a blocking plate for blocking the opening at the lower end of the feeding tube is provided on the feeding plate, and the blocking plate is slidably connected to the feeding tube in a horizontal direction.

[0011] By adopting the above technical solution, during the movement of the feeding plate, the feeding plate will drive the blocking plate to move, and the blocking plate will continue to block the opening at the lower end of the feeding barrel. Then, during the reverse movement of the feeding plate, the blocking plate will also move in the reverse direction. At this time, the material in the feeding barrel will fall onto the feeding plate under the action of gravity, making it easier for the subsequent conveying ladder short rod to move into the second fixed component.

[0012] Optionally, the limit assembly includes a limit plate slidably connected to the fixed frame, a connecting rod fixed on the mounting shaft, and a limit shaft rotatably connected to the connecting rod, and the limit plate is provided with a limit groove for clamping the limit shaft, and the limit groove includes an inclined portion and two displacement portions, and the two displacement portions are arranged at both ends of the inclined portion and are vertically arranged.

[0013] By adopting the above technical solution, the rotation of the installation shaft drives the connecting rod to rotate, so that the limit shaft slides upward in the limit groove, and the limit plate moves downward, thereby limiting the short rod conveyed by the feeding plate. After welding is completed, the installation shaft continues to rotate. At this time, the pushing part no longer abuts against the short rod of the ladder, and the limit shaft slides downward in the limit groove after the displacement part is displaced. At this time, the limit plate will be driven to move upward. At this time, the pushing part no longer presses the short rod that has been welded, and the limit plate no longer limits the short rod.

[0014] Optionally, a return spring is provided on the mounting rod, one end of the return spring is fixed to the mounting rod, and the other end is fixed to the first fixing rod, and the return spring is used for pulling the first fixing rod to move in a direction away from the second fixing rod.

[0015] By adopting the above technical solution, the first fixing rod is pulled to move away from the second fixing rod under the action of the return spring, and at this time, the long rod of the ladder can be easily placed between the first fixing rod and the second fixing rod.

[0016] Optionally, two of the second fixing components and two of the limiting components are provided, and a driving component for driving the two mounting shafts to rotate is provided on the fixing frame.

[0017] By adopting the above technical solution, since two second fixing components are provided, the fixing effect of the short rod is improved.

[0018] Optionally, the driving assembly includes two driving wheels fixed on the mounting shaft, a synchronous belt wound around the two driving wheels, and a driving motor fixed on a fixing frame, and the output shaft of the driving motor is fixed on one of the driving wheels.

[0019] By adopting the above technical solution, the driving motor drives the driving wheel to rotate, and then drives another driving wheel to rotate under the action of the synchronous belt, and then the two mounting shafts rotate at the same time to adjust the positions of the two rotating wheels and the limit plate.

[0020] Optionally, the blocking plate is slidably connected to the feeding plate, and a movable shaft is fixedly mounted on the feeding plate. A positioning groove for clamping the movable shaft is provided on the mounting frame, and the positioning groove includes a first horizontal portion, an inclined portion, and a second horizontal portion. One end of the inclined portion is connected to the first horizontal portion, and the other end is connected to the second horizontal portion, and the first horizontal portion is arranged above the second horizontal portion.

[0021] By adopting the above technical solution, during the movement of the feeding plate, the moving shaft will move from the first horizontal part to the second horizontal part. When the moving shaft is in the first horizontal part, the bottom surface of the short rod and the upper surface of the long rod are not in contact. Then, when the moving shaft is in the second horizontal part, the bottom surface of the short rod abuts against the upper surface of the long rod. At this time, the short rod abuts against the limit plate, thereby reducing the friction between the short rod and the long rod when the short rod moves.

[0022] Second aspect: A steel pipe ladder welding process comprises the following steps: S1: Fix the long rod on the conveyor belt through the first fixing rod and the second fixing rod, and adjust the position of the long rod so that the long rod is completely on the conveyor belt; S2: The feeding plate moves and drives the short rod to move below the rotating wheel and abut against the limit plate; S3: The rotating wheel drives the pushing part to rotate, so that the pushing part fixes the position of the short rod, and then the welding robot body welds the short rod; S4: The rotating wheel continues to rotate, so that the limit plate moves upward, the pushing part and the welded short rod are separated, so that the conveyor belt drives the long rod and the welded short rod to move a certain distance, and finally the feeding and welding are continued through the feeding plate.

[0023] By adopting the above technical solution, the long rod of the ladder is fixed to the conveyor belt by the first fixed rod and the second fixed rod, and the short rod is conveyed by the feeding plate. After the short rod abuts against the limit plate, the two mounting shafts are driven to rotate by the driving motor, and the mounting shaft drives the rotating wheel and the pushing part to rotate, and the short rod is pressed and fixed on the long rod by the pushing part. Finally, the fixed short rod is welded by the welding robot body. After the welding is completed, the rotating wheel continues to rotate, so that the limit plate no longer abuts against the short rod, and the pushing part no longer abuts against the short rod. Then, the long rod is driven to move a certain distance by the conveyor belt, and the feeding plate continues to convey the short rod to the bottom of the rotating wheel, and then the subsequent welding work is carried out.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The conveying assembly drives the welded short rod and long rod to move a specified distance, and then places the unwelded short rods under the pushing part in turn, and finally realizes the welding of the ladder. After the welding is completed, the ladder can be directly removed from the mounting frame, which makes welding more convenient.

[0025] 2. During the movement of the feeding plate, the feeding plate will drive the blocking plate to move, and the blocking plate will continue to block the opening at the lower end of the feeding barrel. Then, during the reverse movement of the feeding plate, the blocking plate will also move in the reverse direction. At this time, the material in the feeding barrel will fall onto the feeding plate under the action of gravity, making it easier for the subsequent conveying ladder short rod to move into the second fixed component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the conveying component of an embodiment of the present application.

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 It is a schematic diagram of the structure of the first fixing component of an embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the push plate structure of an embodiment of the present application.

[0031] Figure 6 It is a schematic diagram of the structure of the feeding assembly of an embodiment of the present application.

[0032] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0033] Figure 8 yes Figure 2 Enlarged view of point B in the middle.

[0034] Fig. 9 It is a schematic diagram of the structure of the second fixing component and the limiting component of the embodiment of the present application.

[0035] Figure numerals: 01, frame; 02, welding robot body; 03, mounting frame; 1, first fixing assembly; 11, mounting rod; 12, first fixing rod; 13, second fixing rod; 2, second fixing assembly; 21, fixing frame; 22, mounting shaft; 23, rotating wheel; 24, pushing part; 3, feeding assembly; 31, supporting frame; 32, feeding barrel; 33, feeding plate; 34, feeding cylinder; 35, blocking plate; 4, Conveying assembly; 41, conveying roller; 42, conveying belt; 5, moving groove; 51, pushing plate; 511, pushing surface; 512, connecting surface; 513, abutting surface; 52, reset spring; 6, limiting assembly; 61, limiting plate; 62, connecting rod; 63, limiting shaft; 64, limiting groove; 641, inclined part; 642, transposition part; 8, positioning groove; 81, first horizontal part; 82, connecting part; 83, second horizontal part. DETAILED DESCRIPTION

[0036] The following combination Figure 1-Figure 9 This application is described in further detail.

[0037] First aspect: The present application embodiment discloses a steel pipe ladder welding robot. Figure 1 and Figure 2 A steel pipe rod ladder welding robot includes a frame 01, a welding robot body 02 arranged on the frame 01, and a mounting frame 03 arranged on the frame 01. The mounting frame 03 is provided with a first fixing component 1 for fixing the long rod of the ladder and a second fixing component 2 for fixing the short rod. At the same time, a feeding component 3 is provided on the mounting frame 03. After the short rod fixed by the second fixing component 2 is welded to the long rod, the welded short rod is separated from the second fixing component 2, and then the feeding component 3 is used to transport the short rod to the second fixing component 2. At this time, the adjacent short rods are welded by the welding robot body 02. During the welding process, it can be achieved by a second fixing component 2, thereby achieving the purpose of facilitating installation and disassembly, thereby improving the welding efficiency of the ladder.

[0038] Reference Figures 1 to 4 A conveying component 4 is provided on the mounting frame 03, and the first fixing component 1 is provided on the conveying component 4. After the short rod fixed by the second fixing component 2 is welded, the second fixing component 2 and the welded short rod are separated, and the long rod is driven to move by the conveying component 4. During the movement, the feeding component 3 conveys the unwelded short rod to the second fixing component 2, and then the subsequent short rods are welded by the welding robot body 02.

[0039] Reference Figures 1 to 4The conveying assembly 4 includes two conveying rollers 41 rotatably connected to the mounting frame 03 and a conveying belt 42 wound around the two conveying rollers 41 at the same time. At the same time, a conveying motor for driving the conveying rollers 41 to rotate is arranged on the mounting frame 03. The first fixed assembly 1 is arranged on the conveying belt 42. Since two long rods are arranged on the ladder, two conveying assemblies 4 are also arranged. Multiple first fixed assemblies 1 are arranged on each conveying assembly 4. The conveying assembly 4 drives the long rod to move so that the position where the long rod needs to be welded corresponds to the second fixed assembly 2, which is convenient for the welding robot body 02 to weld the short rods in sequence.

[0040] Reference Figures 1 to 5 The first fixed component 1 includes a mounting rod 11 fixed on the conveyor belt 42, a first fixed rod 12 slidably connected to the mounting rod 11, and a second fixed rod 13 fixed to the mounting rod 11. The first fixed rod 12 and the second fixed rod 13 are arranged at intervals, and the long rod of the ladder is arranged between the first fixed rod 12 and the second fixed rod 13; a moving groove 5 for the first fixed component 1 to move is opened on the mounting frame 03, and the moving groove 5 is arranged along the conveying direction of the conveyor belt 42. At the same time, a pushing plate 51 is arranged in the moving groove 5, and a return spring is arranged on the mounting rod 11. 52, one end of the return spring 52 is fixed on the mounting rod 11, and the other end is fixed on the first fixing rod 12. The return spring 52 is used to pull the first fixing rod 12 to move in the direction away from the second fixing rod 13, and the pushing plate 51 is used to push the first fixing rod 12 to move in the direction close to the second fixing rod 13, thereby achieving the fixation of the long rod. A pushing surface 511, a connecting surface 512 and an abutting surface 513 are provided on the pushing plate 51, and the return spring 52 drives the first fixing rod 12 to abut on the pushing surface 511, the connecting surface 512 and the abutting surface 513 respectively.

[0041] One end of the connecting surface 512 is connected to the abutting surface 513, and the other end is connected to the pushing surface 511. When the first fixing rod 12 abuts against the pushing surface 511, the first fixing rod 12 and the second fixing rod 13 fix the long rod of the ladder. When the first fixing rod 12 and the abutting surface 513 are in contact, the distance between the first fixing rod 12 and the second fixing rod 13 is the largest, which makes it easy to install and remove the long rod of the ladder.

[0042] In this embodiment, two connecting surfaces 512 and two abutting surfaces 513 are provided, and the two abutting surfaces 513 and the two connecting surfaces 512 are provided at both ends of the pushing surface 511, one for fixing the unwelded long rod, and the other for separating the welded long rod from the conveying assembly 4, thereby realizing the convenience of removing the welded ladder.

[0043] Under the action of the return spring 52, the first fixing rod 12 is pulled to move in the direction away from the second fixing rod 13. At this time, it is convenient to place the long rod of the ladder between the first fixing rod 12 and the second fixing rod 13. During the rotation of the conveyor belt 42, the long rod of the ladder is pushed to move at the same time. At this time, the corresponding first fixing rod 12 will be separated from the position in contact with the abutment surface 513, pass through the connecting surface 512, and finally abut on the pushing surface 511, so that the return spring 52 assembly is stretched, and then the long rod of the ladder is fixed. After the fixing is completed, the short rod of the ladder is welded in sequence through the feeding assembly 3, the second fixing assembly 2 and the welding robot body 02. After the welding is completed, the conveying and mobilization will drive the long rod to move, and the long rod drives the welded short rod to move, and then the corresponding second fixing rod 13 is moved to the abutment surface 513 at the other end of the pushing surface 511, finally It is convenient to remove the welded ladder from the first fixing assembly 1, and then weld the subsequent ladders in sequence according to the above steps.

[0044] Reference Figure 5 to Figure 6 The feeding assembly 3 includes a support frame 31 fixed on the mounting frame 03, a feeding barrel 32 fixed on the support frame 31, a feeding plate 33 arranged below the feeding barrel 32, and a feeding cylinder 34 for driving the feeding plate 33 to move closer to or away from the second fixed assembly 2. The feeding barrel 32 is configured as a rectangular structure, and the upper and lower end surfaces of the feeding barrel 32 are configured as openings. Then, the short rod of the ladder can be placed in the feeding barrel 32 through the upper opening, and then the lowest short rod of the ladder will fall onto the feeding plate 33. At the same time, the feeding plate 33 can support multiple short rods of the ladder in the feeding barrel 32. In this embodiment, the length of the feeding plate 33 is less than the length of the short rod.

[0045] Reference Figure 6 to Figure 7 A blocking plate 35 is provided on the feeding plate 33, and the blocking plate 35 is used to block the opening at the lower end of the feeding barrel 32. The blocking plate 35 is slidably connected to the feeding barrel 32, and the feeding cylinder 34 drives the feeding plate 33 to move, and the short rod of the lowest layer is sent to the first fixed component 1. During the movement of the feeding plate 33, the blocking plate 35 can continue to block the opening at the lower end of the feeding barrel 32, and then during the reverse movement of the feeding plate 33, the blocking plate 35 also moves in the reverse direction. At this time, the material in the feeding barrel 32 will fall onto the feeding plate 33 under the action of gravity, which is convenient for the subsequent conveying of the ladder short rod to move to the second fixed component 2.

[0046] Reference Figure 2 , Figure 8 and Fig. 9The second fixing component 2 includes a fixing frame 21 arranged on the feeding tube 32, a mounting shaft 22 rotatably connected to the fixing frame 21, a rotating wheel 23 fixed on the mounting shaft 22, and a pushing portion 24 fixed on the rotating wheel 23. When the rotating wheel 23 rotates, the pushing portion 24 can be brought into contact with the short rod of the ladder, and a limiting component 6 is arranged on the fixing frame 21, and the limiting component 6 is used to limit the short rod transported by the feeding plate 33.

[0047] Reference Figure 2 , Figure 8 and Fig. 9 The limiting assembly 6 includes a limiting plate 61 slidably connected to the fixing frame 21, a connecting rod 62 fixed to the mounting shaft 22, and a limiting shaft 63 rotatably connected to the connecting rod 62. The limiting plate 61 is provided with a limiting groove 64 for clamping the limiting shaft 63. The limiting groove 64 includes an inclined portion 641 and two transposition portions 642. The two transposition portions 642 are arranged at both ends of the inclined portion 641 and are vertically arranged. The rotation of the mounting shaft 22 drives the connecting rod 62 to rotate, so that the limiting shaft 63 slides upward in the limiting groove 64, so that the limiting plate 61 moves downward, and the short rod transported by the feeding plate 33 is limited. After the limiting plate 61 limits the short rod, the mounting shaft 22 continues to rotate, driving the mounting wheel and the pushing portion 24 to rotate at the same time, so that the pushing portion 24 presses the short rod of the ladder to fix the short rod. Finally, the welding robot body 02 welds the fixed ladder short rod. In other embodiments, a positioning plate (not shown in the figure) is fixedly mounted on the limit plate 61, and the positioning plate is used to abut against the two ends of the short rod. Then, when the rotating wheel 23 drives the pushing part 24 to rotate, the pushing part 24 can be reduced. When the limit plate 61 abuts against the side of the short rod, the positioning plate also abuts against the two ends of the short rod.

[0048] After welding is completed, the installation shaft 22 continues to rotate. At this time, the pushing part 24 no longer abuts against the short rod of the ladder, and the limiting shaft 63 slides downward in the limiting groove 64 after the displacement part 642 is displaced. At this time, the limiting plate 61 will be driven to move upward, and then the conveying component 4 will drive the welded short rod to move at the same time during the process of driving the long rod of the ladder to move. When it moves to the specified length, it continues to move through the feeding plate 33, so that the short rod can continue to be transported and welded.

[0049] In this embodiment, two second fixing components 2 are provided to improve the fixing effect of the short rod. Since the short rod can be fixed by two fixing components, it is more convenient during installation and disassembly, which will further improve the welding efficiency of the entire ladder.

[0050] Reference Figure 2 , Figure 8 and Fig. 9A driving assembly (not shown in the figure) is arranged on the fixing frame 21, and the driving assembly is used to drive the two mounting shafts 22 to rotate. The driving assembly includes two driving wheels fixed on the mounting shafts 22, a synchronous belt wound around the two driving wheels, and a driving motor fixed on the fixing frame 21. The output shaft of the driving motor is fixed on one of the driving wheels. The two driving wheels and the two mounting shafts 22 are arranged correspondingly. The driving motor drives the driving wheel to rotate, and then the other driving wheel is driven to rotate under the action of the synchronous belt, and then the two mounting shafts 22 are rotated at the same time, and the positions of the two rotating wheels 23 and the limiting plate 61 are adjusted.

[0051] Reference Figure 6 and Figure 7 The blocking plate 35 is slidably connected to the feeding plate 33, and a moving shaft (not shown in the figure) is fixedly installed on the feeding plate 33. At the same time, a positioning groove 8 for clamping the moving shaft is opened on the mounting frame 03. The positioning groove 8 includes a first horizontal portion 81, a connecting portion 82 and a second horizontal portion 83. One end of the connecting portion 82 is connected to the first horizontal portion 81, and the other end is connected to the second horizontal portion 83. The first horizontal portion 81 is arranged above the second horizontal portion 83. During the movement of the feeding plate 33, the moving shaft will move from the first horizontal portion 81 to the second horizontal portion 83. When the moving shaft is in the first horizontal portion 81, the bottom surface of the short rod and the upper surface of the long rod are not in contact. Then, when the moving shaft is in the second horizontal portion 83, the bottom surface of the short rod abuts against the surface of the long rod. At this time, the short rod abuts against the limiting plate 61, thereby reducing the friction between the short rod and the long rod when the short rod moves.

[0052] The implementation principle of the steel pipe rod ladder welding robot of the embodiment of the present application is as follows: when welding the ladder, firstly, the long rod of the ladder is fixed on the conveyor belt 42 by the first fixed rod 12 and the second fixed rod 13, and then the conveyor belt 42 is rotated to drive the fixed long rod to move so that the long rod is completely on the conveyor belt 42, and then the short rod is transported by the feeding plate 33. After the short rod abuts against the limit plate 61, the two installation shafts 22 are driven to rotate by the driving motor, and the installation shaft 22 drives the rotating wheel 23 and the pushing part 24 to rotate. The moving part 24 presses and fixes the short rod on the long rod, and finally the fixed short rod is welded by the welding robot body 02. After welding is completed, the rotating wheel 23 continues to rotate, so that the limit plate 61 no longer abuts against the short rod, and at the same time, the pushing part 24 no longer abuts against the short rod, and then the long rod is driven to move a distance through the conveyor belt 42, and the feeding plate 33 continues to convey the short rod to the bottom of the rotating wheel 23, and then subsequent welding work is carried out. After welding is completed, the ladder can be directly removed from the mounting frame 03, so that it can be more convenient when welding.

[0053] Second aspect: A steel pipe ladder welding process comprises the following steps: S1: Fix the long rod on the conveyor belt 42 through the first fixing rod 12 and the second fixing rod 13, and adjust the position of the long rod so that the long rod is completely on the conveyor belt 42; S2: The feeding plate 33 moves to drive the short rod to move below the rotating wheel 23 and abut against the limiting plate 61; S3: The rotating wheel 23 drives the pushing part 24 to rotate, so that the pushing part 24 fixes the position of the short rod, and then the welding robot body 02 welds the short rod; S4: The rotating wheel 23 continues to rotate, causing the limit plate 61 to move upward, and the pusher 24 and the welded short rod are separated, so that the conveyor belt 42 drives the long rod and the welded short rod to move a certain distance, and finally the feeding plate 33 continues to feed and weld.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel pipe ladder welding robot, comprising a frame (01), a robot body arranged on the frame (01), and a mounting frame (03) arranged on the frame (01), characterized in that: The mounting frame (03) is provided with a first fixing assembly (1) for fixing a long ladder rod and a second fixing assembly (2) for fixing a short ladder rod. The mounting frame (03) is provided with a conveying assembly (4) for driving the long ladder rod and the short ladder rod welded to the long ladder rod to move. The first fixing assembly (1) comprises a mounting rod (11) arranged on the conveying assembly (4), a first fixing rod (12) slidably connected to the mounting rod (11), and a second fixing rod (13) fixed to the mounting rod (11). The mounting frame (03) is provided with a first fixing assembly (1) for fixing the long ladder rod and the short ladder rod. (1) a movable moving groove (5), wherein a pushing plate (51) is arranged in the moving groove (5) for pushing the first fixed rod (12) to move in a direction close to the second fixed rod (13); the second fixed assembly (2) comprises a fixed frame (21) arranged on the mounting frame (03), a mounting shaft (22) rotatably connected to the fixed frame (21), a rotating wheel (23) fixed on the mounting shaft (22), and a pushing portion (24) fixed on the rotating wheel (23), and when the pushing portion (24) on the rotating wheel (23) abuts against the short rod, the short rod abuts and is fixed on the long rod.

2. A steel pipe ladder welding robot according to claim 1, characterized in that: The mounting frame (03) is provided with a feeding assembly (3) for conveying the short rod to the bottom of the rotating wheel (23); the feeding assembly (3) comprises a support frame (31) fixed on the mounting frame (03), a feeding cylinder (32) fixed on the support frame (31), a feeding plate (33) arranged below the feeding cylinder (32), and a feeding cylinder (34) for driving the feeding plate (33) to move towards or away from the second fixed assembly (2); the upper and lower end surfaces of the feeding cylinder (32) are both arranged to be openings.

3. A steel pipe ladder welding robot according to claim 2, characterized in that: The feeding plate (33) is provided with a blocking plate (35) for blocking the opening at the lower end of the feeding cylinder (32); the blocking plate (35) is slidably connected to the feeding cylinder (32) in a horizontal direction.

4. A steel pipe ladder welding robot according to claim 3, characterized in that: The fixing frame (21) is provided with a limiting assembly (6) for limiting the short rod conveyed by the feeding plate (33); the limiting assembly (6) comprises a limiting plate (61) slidably connected to the fixing frame (21), a connecting rod (62) fixed to the mounting shaft (22), and a limiting shaft (63) rotatably connected to the connecting rod (62); the limiting plate (61) is provided with a limiting groove (64) for clamping the limiting shaft (63); the limiting groove (64) comprises an inclined portion (641) and two displacement portions (642); the two displacement portions (642) are arranged at two ends of the inclined portion (641) and are arranged vertically.

5. The steel pipe ladder welding robot according to claim 1, characterized in that: A return spring (52) is provided on the mounting rod (11), one end of the return spring (52) is fixed to the mounting rod (11), and the other end is fixed to the first fixing rod (12), and the return spring (52) is used to pull the first fixing rod (12) to move in a direction away from the second fixing rod (13).

6. The steel pipe ladder welding robot according to claim 1, characterized in that: Two of each of the second fixing components (2) and the limiting components (6) are provided, and a driving component for driving the two mounting shafts (22) to rotate is provided on the fixing frame (21).

7. The steel pipe ladder welding robot according to claim 6, characterized in that: The drive assembly comprises two drive wheels fixed on the mounting shaft (22), a synchronous belt wound around the two drive wheels, and a drive motor fixed on a fixing frame (21), wherein the output shaft of the drive motor is fixed on one of the drive wheels.

8. The steel pipe ladder welding robot according to claim 4, characterized in that: The blocking plate (35) is slidably connected to the feeding plate (33), and a movable shaft is fixedly mounted on the feeding plate (33). A positioning groove (8) for clamping the movable shaft is provided on the mounting frame (03), and the positioning groove (8) comprises a first horizontal portion (81), an inclined portion (641) and a second horizontal portion (83). One end of the inclined portion (641) is connected to the first horizontal portion (81), and the other end is connected to the second horizontal portion (83), and the first horizontal portion (81) is arranged above the second horizontal portion (83).

9. A steel pipe ladder welding process, characterized in that: The steel pipe ladder welding robot according to claim 8 comprises the following steps: S1: fixing the long rod on the conveyor belt (42) by means of a first fixing rod (12) and a second fixing rod (13), and adjusting the position of the long rod so that the long rod is completely on the conveyor belt (42); S2: The feeding plate (33) moves, driving the short rod to move below the rotating wheel (23) and abut against the limiting plate (61); S3: The rotating wheel (23) drives the pushing part (24) to rotate, so that the pushing part (24) fixes the position of the short rod, and then the welding robot body (02) welds the short rod; S4: The rotating wheel (23) continues to rotate, causing the limit plate (61) to move upward, and the pushing portion (24) and the welded short rod are separated, so that the conveyor belt (42) drives the long rod and the welded short rod to move a certain distance, and finally the feeding and welding are continued through the feeding plate (33).

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