A steel pipe pole climbing ladder welding robot and its welding process

Abstract

This application relates to the technical field of ladder welding equipment, and particularly to a steel pipe pole ladder welding robot and its welding process. It includes a frame, a robot body arranged on the frame, and a mounting frame arranged on the frame. A first fixing component for fixing the long ladder pole and a second fixing component for fixing the short pole are arranged on the mounting frame. A conveying component for driving the long pole and the short pole welded on the long pole to move is arranged on the mounting frame. The first fixing component includes a mounting rod arranged on the conveying component, a first fixing rod slidably connected to the mounting rod, and a second fixing rod fixed on the mounting rod. A moving groove for the first fixing component to move is opened on the mounting frame, and a pushing plate for pushing the first fixing rod to move towards the second fixing rod is arranged in the moving groove. This application has the effect of improving welding efficiency.

Description

Technical Field

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

[0002] The steel pipe pole ladder is a facility used in occasions such as power lines and communication lines. It is usually installed on steel pipe poles and is applicable to steel pipe poles of various heights and angles. It can be used for inspections, maintenance, and repairs. Especially in some remote areas or high-altitude areas, the role of the power steel pipe pole ladder is more obvious. The steel pipe pole ladder includes two long poles and multiple short poles. The multiple short poles and the two long poles are fixed by welding, and finally the welded steel pipe pole ladder is fixed on the steel pipe pole. When welding the ladder, a welding fixture is required for fixation, and then a welding robot is used for welding.

[0003] For example, the Chinese patent document with the publication number CN204934986U discloses a pit ladder welding fixture, including a bottom plate. Two opposite horizontal brackets are fixed on the bottom plate, and several vertical brackets are vertically fixed between the two horizontal brackets. Several positioning blocks and L-shaped positioning clamping plates are fixedly arranged with reference to the horizontal brackets and vertical brackets, and quick clamps are arranged beside several positioning blocks and L-shaped positioning clamping plates. The horizontal brackets and vertical brackets of the pit ladder welding fixture are fixed on the bottom plate with bolts, and the parts of the pit ladder to be welded are placed on the fixture, close to the positioning blocks and L-shaped positioning clamping plates, and clamped tightly with quick clamps. Finally, the fixed horizontal brackets and vertical brackets are welded by a welding robot.

[0004] In the above related technology, during welding, although the ladder can be fixed through the horizontal brackets, vertical brackets, and positioning clamping plates, since there are usually multiple short rods on the ladder, at this time, each short rod on the ladder needs to be fixed by multiple quick clamps, and then each quick clamp needs to be unlocked after welding is completed to remove the welded ladder, resulting in a decrease in welding efficiency. Summary of the Invention

[0005] This application provides a steel pipe pole ladder welding robot and its welding process, aiming to solve the problem of the decrease in ladder welding efficiency in the related technology.

[0006] First aspect:

[0007] A steel pipe pole ladder welding robot provided by this application adopts the following technical solutions:

[0008] A steel pipe pole climbing ladder welding robot, comprising a frame, a robot body arranged on the frame, and a mounting frame arranged on the frame. A first fixing component for fixing the long ladder pole and a second fixing component for fixing the short pole are arranged on the mounting frame. A conveying component for driving the long pole and the short pole welded on the long pole to move is arranged on the mounting frame. The first fixing component includes a mounting rod arranged on the conveying component, a first fixing rod slidably connected to the mounting rod, and a second fixing rod fixed on the mounting rod. A moving groove for the first fixing component to move is formed on the mounting frame, and a pushing plate for pushing the first fixing rod to move towards the second fixing rod is arranged in the moving groove. The second fixing component includes a fixing frame arranged on the mounting frame, a mounting shaft rotatably connected to the fixing frame, a rotating wheel fixed on the mounting shaft, and a pushing part fixed on the rotating wheel. When the pushing part on the rotating wheel abuts against the short pole, the short pole is abutted and fixed on the long pole.

[0009] By adopting the above technical solution, when welding the climbing ladder, first fix the long pole of the climbing ladder on the conveying component through the first fixing rod and the second fixing rod. Drive the fixed long pole to move through the rotation of the conveying component, so that the long pole is completely on the conveying component, and move the short pole under the rotating wheel. Then the rotating wheel drives the pushing part to rotate to fix the short pole through the pushing part. Finally, it is convenient for the robot body to weld the short pole. After welding, directly separate the pushing part from the short pole. The conveying component drives the welded short pole and long pole to move a specified distance. Then place the un-welded short poles under the pushing part in turn. Finally, the welding of the climbing ladder is realized. After welding, the climbing ladder can be directly taken off the mounting frame, so it is more convenient during welding.

[0010] Optionally, a feeding component for feeding the short pole under the rotating wheel is arranged on the mounting frame. The feeding component includes a support frame fixed on the mounting frame, a feeding cylinder fixed on the support frame, a feeding plate arranged under the feeding cylinder, and a feeding cylinder for driving the feeding plate to move towards or away from the second fixing component. Both the upper and lower end faces of the feeding cylinder are set to be open.

[0011] By adopting the above technical solution, place a plurality of short poles in the feeding cylinder. Then the short poles fall onto the feeding plate under the action of gravity. Drive the feeding plate to move through the feeding cylinder, and then convey the short poles under the rotating wheel, so as to be more convenient when conveying the short poles.

[0012] Optionally, a blocking plate for blocking the lower end opening of the feeding cylinder is arranged on the feeding plate. The blocking plate is slidably connected to the feeding cylinder in the horizontal direction.

[0013] 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 cylinder. 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 cylinder will fall onto the feeding plate under the action of gravity, facilitating the subsequent movement of the conveying ladder short rod into the second fixing component.

[0014] Optionally, the limiting component includes a limiting plate slidably connected to the fixing frame, a connecting rod fixed to the mounting shaft, and a limiting shaft rotatably connected to the connecting rod. A limiting groove for clamping the limiting shaft is formed on the limiting plate. The limiting groove includes an inclined portion and two transposition portions. The two transposition portions are arranged at both ends of the inclined portion and are vertically arranged.

[0015] By adopting the above technical solution, the rotation of the mounting shaft drives the rotation of the connecting rod, causing the limiting shaft to slide upward in the limiting groove and the limiting plate to move downward to limit the short rod conveyed by the feeding plate. After welding is completed, the mounting shaft continues to rotate. At this time, the pushing portion no longer abuts against the ladder short rod, and after the limiting shaft transposes in the transposition portion and slides downward in the limiting groove, it will drive the limiting plate to move upward. At this time, the pushing portion no longer presses the welded short rod, and at the same time, the limiting plate no longer limits the short rod.

[0016] Optionally, a return spring is arranged 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. The return spring is used to pull the first fixing rod to move away from the second fixing rod.

[0017] By adopting the above technical solution, under the action of the return spring, the first fixing rod is pulled to move away from the second fixing rod. At this time, it is convenient to place the long rod of the ladder between the first fixing rod and the second fixing rod.

[0018] Optionally, two second fixing components and two limiting components are provided, and a driving component for driving the two mounting shafts to rotate is arranged on the fixing frame.

[0019] By adopting the above technical solution, since two second fixing components are provided, the fixing effect on the short rod is improved.

[0020] Optionally, the driving component includes two driving wheels fixed to the mounting shaft, a synchronous belt wound around the two driving wheels, and a driving motor fixed to the fixing frame. The output shaft of the driving motor is fixed to one of the driving wheels.

[0021] By adopting the above technical solution, the driving motor drives the driving wheel to rotate, and then under the action of the synchronous belt, the other driving wheel will be driven to rotate, and then the two mounting shafts will rotate simultaneously to adjust the positions of the two rotating wheels and the limiting plate.

[0022] Optionally, the plugging plate is slidably connected to the feeding plate, and a moving shaft is fixedly installed on the feeding plate. A positioning groove for clamping the moving shaft is formed on the mounting frame. The positioning groove includes a first horizontal portion, an inclined portion, and a second horizontal portion. One end of the inclined portion communicates with the first horizontal portion, and the other end communicates with the second horizontal portion. The first horizontal portion is arranged above the second horizontal portion.

[0023] By adopting the above technical solution, during the movement of the feeding plate, the moving shaft will move from the first horizontal portion into the second horizontal portion. When the moving shaft is in the first horizontal portion, the bottom surface of the short rod does not contact the upper surface of the long rod. Then when the moving shaft is in the second horizontal portion, 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 limiting plate, so that the friction generated between the short rod and the long rod during the movement of the short rod can be reduced.

[0024] Second aspect:

[0025] A welding process for a steel pipe pole ladder includes the following steps:

[0026] 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;

[0027] S2: The movement of the feeding plate drives the short rod to move under the rotating wheel and abut against the limiting plate;

[0028] S3: The rotating wheel drives the pushing portion to rotate, so that the pushing portion fixes the position of the short rod, and then the welding robot body welds the short rod;

[0029] S4: The rotating wheel continues to rotate, so that the limiting plate moves upward, the pushing portion is separated from the welded short rod, the conveyor belt drives the long rod and the welded short rod to move a certain distance, and finally the feeding plate continues to feed and weld.

[0030] By adopting the above technical solution, the long rod of the ladder is fixed on the conveyor belt through the first fixing rod and the second fixing rod. The short rod is conveyed by the feeding plate. After the short rod abuts against the limiting plate, the driving motor drives the two mounting shafts to rotate. The mounting shafts drive the rotating wheel and the pushing portion to rotate. The pushing portion presses and fixes the short rod on the long rod. Finally, the welding robot body welds the fixed short rod. After welding is completed, the rotating wheel continues to rotate, so that the limiting plate no longer abuts and limits the short rod, and at the same time the pushing portion no longer abuts against the short rod. Then the conveyor belt drives the long rod to move a certain distance, and the feeding plate continues to convey the short rod under the rotating wheel, and then subsequent welding work is carried out.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The conveying component drives the welded short rods and long rods to move a specified distance, then successively places the unwelded short rods under the pushing part, and finally welds the ladder. After welding, the ladder can be directly removed from the mounting frame, making it more convenient during welding.

[0033] 2. During the movement of the feeding plate, the feeding plate drives the blocking plate to move. The blocking plate continues to block the opening at the lower end of the feeding cylinder. Then, during the reverse movement of the feeding plate, the blocking plate also moves in the reverse direction. At this time, the material in the feeding cylinder will fall onto the feeding plate under the action of gravity, facilitating the subsequent conveyance of the short rods of the ladder to move into the second fixing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0035] Figure 2 is the structural schematic diagram of the conveying component of the embodiment of the present application.

[0036] Figure 3 is Figure 2 the enlarged view of A in

[0037] Figure 4 is the structural schematic diagram of the first fixing component of the embodiment of the present application.

[0038] Figure 5 is the structural schematic diagram of the pushing plate of the embodiment of the present application.

[0039] Figure 6 is the structural schematic diagram of the feeding component of the embodiment of the present application.

[0040] Figure 7 is Figure 6 the enlarged view of C in

[0041] Figure 8 is Figure 2 the enlarged view of B in

[0042] Figure 9 is the structural schematic diagram of the second fixing component and the limiting component of the embodiment of the present application.

[0043] Reference numerals: 01, frame; 02, welding robot body; 03, mounting bracket; 1, first fixing assembly; 11, mounting rod; 12, first fixing rod; 13, second fixing rod; 2, second fixing assembly; 21, fixing bracket; 22, mounting shaft; 23, rotating wheel; 24, pushing part; 3, feeding assembly; 31, support frame; 32, feeding cylinder; 33, feeding plate; 34, feeding cylinder; 35, sealing plate; 4, conveying assembly; 41, conveying roller; 42, conveyor belt; 5, moving groove; 51, pushing plate; 511, pushing surface; 512, connecting surface; 513, abutting surface; 52, return 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 implementation mode

[0044] The following is combined with Figures 1 - 9 to further elaborate on this application.

[0045] First aspect:

[0046] An embodiment of this application discloses a steel pipe pole ladder welding robot. Refer to Figure 1 and Figure 2 , a steel pipe pole ladder welding robot includes a frame 01, a welding robot body 02 arranged on the frame 01, and a mounting bracket 03 arranged on the frame 01. A first fixing assembly 1 for fixing the long ladder pole and a second fixing assembly 2 for fixing the short pole are arranged on the mounting bracket 03. At the same time, a feeding assembly 3 is arranged on the mounting bracket 03. After the short pole fixed by the second fixing assembly 2 is welded to the long pole, the welded short pole is separated from the second fixing assembly 2, and then the feeding assembly 3 is used to transport the short pole to the second fixing assembly 2. At this time, the welding robot body 02 welds adjacent short poles. During the welding process, it can be achieved by one second fixing assembly 2, so as to achieve the purpose of facilitating installation and disassembly, and further improve the welding efficiency of the ladder.

[0047] Refer to Figures 1 to 4 , a conveying assembly 4 is arranged on the mounting bracket 03, and the first fixing assembly 1 is arranged on the conveying assembly 4. After the short pole fixed by the second fixing assembly 2 is welded, the second fixing assembly 2 is separated from the welded short pole. At this time, the conveying assembly 4 drives the long pole to move. During the moving process, the feeding assembly 3 transports the un-welded short pole to the second fixing assembly 2, and then the welding robot body 02 welds the subsequent short poles.

[0048] Refer to Figures 1 to 4, the conveying assembly 4 includes two conveying rollers 41 rotatably connected to the mounting frame 03 and a conveyor 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 provided on the mounting frame 03. The first fixing assembly 1 is arranged on the conveyor belt 42. Since there are two long rods of the ladder, there are also two conveying assemblies 4. A plurality of first fixing assemblies 1 are arranged on each conveying assembly 4. The conveying assembly 4 drives the long rod to move, so that the position of the long rod to be welded corresponds to the second fixing assembly 2, which is convenient for the welding robot body 02 to weld the short rods in sequence.

[0049] Referring to Figures 1 to 5 , the first fixing assembly 1 includes a mounting rod 11 fixed on the conveyor belt 42, a first fixing rod 12 slidably connected to the mounting rod 11, and a second fixing rod 13 fixed on the mounting rod 11. The first fixing rod 12 and the second fixing rod 13 are arranged at intervals. The long rod of the ladder is arranged between the first fixing rod 12 and the second fixing rod 13; a moving groove 5 for the first fixing assembly 1 to move is formed on the mounting frame 03. 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. At the same time, a return spring 52 is arranged on the mounting rod 11. 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 away from the second fixing rod 13, and the pushing plate 51 is used to push the first fixing rod 12 to move closer to the second fixing rod 13, so as to realize the fixing of the long rod. A pushing surface 511, a connecting surface 512 and an abutting surface 513 are arranged on the pushing plate 51, and the return spring 52 drives the first fixing rod 12 to abut against the pushing surface 511, the connecting surface 512 and the abutting surface 513 respectively.

[0050] 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 contacts the abutting surface 513, the distance between the first fixing rod 12 and the second fixing rod 13 is the largest, and at this time, it is convenient to install and remove the long rod of the ladder.

[0051] In this embodiment, there are two connecting surfaces 512 and two abutting surfaces 513, and the two abutting surfaces 513 and the two connecting surfaces 512 are arranged at both ends of the pushing surface 511. One is convenient for fixing the long rod that has not been welded, and the other is convenient for separating the long rod after welding from the conveying assembly 4, so as to realize the convenient removal of the welded ladder.

[0052] Under the action of the return spring 52, the first fixed rod 12 is pulled to move away from the second fixed rod 13. At this time, it is convenient to place the long rod of the ladder between the first fixed rod 12 and the second fixed rod 13. During the rotation of the conveyor belt 42, the long rod of the ladder is simultaneously pushed to move. At this time, the corresponding first fixed rod 12 will disengage from the position in contact with the abutting surface 513, pass through the connecting surface 512, and finally abut on the pushing surface 511, stretching the return spring 52 assembly. Then, the long rod of the ladder is fixed. After the fixing is completed, the short rods of the ladder are sequentially welded by the feeding assembly 3, the second fixing assembly 2, and the welding robot body 02. After the welding is completed, the conveying adjustment drives the long rod to move, and the long rod drives the welded short rods to move. Then, the corresponding second fixed rod 13 moves to the abutting 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 the subsequent ladders are welded in sequence according to the above steps.

[0053] Refer to Figures 5 to 6 , the feeding assembly 3 includes 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 closer to or away from the second fixing assembly 2. The feeding cylinder 32 is arranged in a rectangular structure, and both the upper and lower end faces of the feeding cylinder 32 are provided with openings. Then, the short rods of the ladder can be placed into the feeding cylinder 32 through the upper opening, and the lowermost 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 cylinder 32. In this embodiment, the length of the feeding plate 33 is less than the length of the short rod.

[0054] Refer to Figures 6 to 7 , a blocking plate 35 is arranged on the feeding plate 33. The blocking plate 35 is used to block the opening at the lower end of the feeding cylinder 32. The blocking plate 35 is slidably connected to the feeding cylinder 32. When the feeding cylinder 34 drives the feeding plate 33 to move and sends the lowermost short rod to the first fixing assembly 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 cylinder 32. Then, during the reverse movement of the feeding plate 33, the blocking plate 35 also moves in the reverse direction. At this time, the materials in the feeding cylinder 32 will fall onto the feeding plate 33 under the action of gravity, facilitating the subsequent conveying of the short rods of the ladder to move into the second fixing assembly 2.

[0055] Refer to Figure 2 , Figure 8 and Figure 9, the second fixing component 2 includes a fixing frame 21 arranged on the feeding cylinder 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 abut against 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 for limiting the short rod conveyed by the feeding plate 33.

[0056] Refer to Figure 2 , Figure 8 and Figure 9 , the limiting component 6 includes a limiting plate 61 slidably connected to the fixing frame 21, a connecting rod 62 fixed on the mounting shaft 22, and a limiting shaft 63 rotatably connected to the connecting rod 62. A limiting groove 64 for clamping the limiting shaft 63 is formed on the limiting plate 61. 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. When the mounting shaft 22 rotates, it drives the connecting rod 62 to rotate, so that the limiting shaft 63 slides upward in the limiting groove 64, causing the limiting plate 61 to move downward to limit the short rod conveyed by the feeding plate 33. 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 simultaneously, 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 short rod of the ladder. In other embodiments, a positioning plate (not shown in the figure) is fixedly installed on the limiting plate 61. The positioning plate is used to abut against both ends of the short rod, and then the situation that the pushing portion 24 will push the short rod to move when the rotating wheel 23 drives the pushing portion 24 to rotate can be reduced. When the limiting plate 61 abuts against the side of the short rod, the positioning plate also abuts against both ends of the short rod.

[0057] After welding is completed, the mounting shaft 22 continues to rotate. At this time, the pushing portion 24 no longer abuts against the short rod of the ladder, and after the limiting shaft 63 transposes in the transposition portion 642, it slides downward in the limiting groove 64. At this time, it will drive the limiting plate 61 to move upward. Then, when the conveying component 4 drives the long rod of the ladder to move, it will drive the welded short rod to move simultaneously. When it moves to the specified length, the feeding plate 33 continues to move, so that the short rod can be continuously conveyed and welded.

[0058] In this embodiment, two second fixing components 2 are provided to improve the fixing effect on the short rod. Since the short rod can be fixed by two fixing components, it is more convenient for installation and disassembly, and thus the welding efficiency of the entire ladder will be improved.

[0059] Refer to Figure 2 , Figure 8 and Figure 9, a driving assembly (not shown in the figure) is provided on the fixing frame 21. The driving assembly is used to drive 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 correspondingly arranged. By driving the driving wheel to rotate with the driving motor, and then under the action of the synchronous belt, the other driving wheel will be driven to rotate, and then the two mounting shafts 22 will rotate simultaneously to adjust the positions of the two rotating wheels 23 and the limiting plate 61.

[0060] Referring to Figure 6 and Figure 7 , the plugging 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 formed 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 communicates with the first horizontal portion 81, and the other end communicates with the second horizontal portion 83. And 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 into the second horizontal portion 83. When the moving shaft is in the first horizontal portion 81, the bottom surface of the short rod does not contact the upper surface of the long rod. 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, so that the friction between the short rod and the long rod during the movement of the short rod can be reduced.

[0061] The implementation principle of a steel pipe pole ladder welding robot in an embodiment of the present application is as follows: When welding the ladder, first fix the long rod of the ladder on the conveyor belt 42 through the first fixing rod 12 and the second fixing rod 13. Then, by rotating the conveyor belt 42, drive the fixed long rod to move so that the long rod is completely on the conveyor belt 42. Then, convey the short rod through the feeding plate 33. After the short rod abuts against the limiting plate 61, drive the two mounting shafts 22 to rotate through the driving motor. The mounting shafts 22 drive the rotating wheels 23 and the pushing portion 24 to rotate. Press and fix the short rod on the long rod through the pushing portion 24. Finally, weld the fixed short rod through the welding robot body 02. After welding is completed, the rotating wheel 23 continues to rotate so that the limiting plate 61 no longer abuts and limits the short rod. At the same time, the pushing portion 24 no longer abuts against the short rod. Then drive the long rod to move a certain distance through the conveyor belt 42. The feeding plate 33 continues to convey the short rod under the rotating wheel 23, and then perform subsequent welding work. After welding is completed, the ladder can be directly removed from the mounting frame 03, so that it is more convenient during welding.

[0062] Second aspect:

[0063] A steel pipe pole ladder welding process includes the following steps:

[0064] 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;

[0065] S2: The feeding plate 33 moves to drive the short rod to move under the rotating wheel 23 and abut against the limiting plate 61;

[0066] 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;

[0067] S4: The rotating wheel 23 continues to rotate, so that the limiting plate 61 moves upward, the pushing part 24 is separated from the welded short rod, 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.

[0068] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A steel pipe ladder welding robot, comprising a frame, a robot body arranged on the frame, and a mounting frame arranged on the frame, characterized in that: The mounting frame is provided with a first fixing assembly for fixing the long rod of the ladder and a second fixing assembly for fixing the short rod, the mounting frame is provided with a conveying assembly for driving the long rod and the short rod welded on the long rod to move, the first fixing assembly includes 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, a moving groove for the first fixing assembly to move is provided on the mounting frame, and a pushing plate for pushing the first fixing rod to move in a direction close to the second fixing rod is provided in the moving groove; the second fixing assembly includes a fixing frame arranged on the mounting frame, a mounting shaft rotatably connected to the fixing frame, a rotating wheel fixed on the mounting shaft and a pushing portion fixed on the rotating wheel, and when the pushing portion on the rotating wheel abuts against the short rod, the short rod abuts and is fixed on the long rod; A feeding assembly for conveying the short rod to the bottom of the rotating wheel is arranged on the mounting frame; the feeding assembly comprises a supporting frame fixed on the mounting frame, a feeding cylinder fixed on the supporting frame, a feeding plate arranged under the feeding cylinder, and a feeding cylinder for driving the feeding plate to move closer to or away from the second fixed assembly, and the upper and lower end surfaces of the feeding cylinder are both arranged to be openings; The fixing frame is provided with a limiting assembly for limiting the short rod conveyed by the feeding plate; the limiting assembly comprises a limiting plate slidably connected to the fixing frame, a connecting rod fixed to the mounting shaft, and a limiting shaft rotatably connected to the connecting rod, the limiting plate is provided with a limiting groove for clamping the limiting shaft, the limiting groove comprises an inclined portion and two displacement portions, the two displacement portions are arranged at both ends of the inclined portion, and are arranged vertically; The conveying assembly comprises two conveying rollers which are rotatably connected to a mounting frame and a conveying belt which is simultaneously wound around the two conveying rollers.

2. A steel pipe ladder welding robot according to claim 1, characterized in that: The feeding plate is provided with a blocking plate for blocking the opening at the lower end of the feeding tube, and the blocking plate is slidably connected to the feeding tube in a horizontal direction.

3. The steel pipe ladder welding robot according to claim 1, characterized in that: The mounting rod is provided with a return spring, one end of which is fixed on the mounting rod, and the other end of which is fixed on the first fixing rod. The return spring is used for pulling the first fixing rod to move in a direction away from the second fixing rod.

4. The steel pipe ladder welding robot according to claim 1, characterized in that: Two of the second fixing components and the limiting components are provided, and a driving component for driving the two installation shafts to rotate is provided on the fixing frame.

5. The steel pipe ladder welding robot according to claim 4, characterized in that: The driving assembly comprises 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, wherein the output shaft of the driving motor is fixed on one of the driving wheels.

6. The steel pipe ladder welding robot according to claim 2, characterized in that: The blocking plate is slidably connected to the feeding plate, and a movable shaft is fixedly installed on the feeding plate. A positioning groove for clamping the movable shaft is opened 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.

7. A steel pipe ladder welding process, characterized in that: The steel pipe ladder welding robot according to claim 6 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.

Images