Photovoltaic infusion pile welding automation equipment

Abstract

The utility model relates to photovoltaic ground pile processing equipment technical field, concretely relates to photovoltaic cast -in -place ground pile welding automation equipment, it includes frame and the first welding unit, second welding unit, positioning clamping unit of assembly on the frame, the first welding unit includes a plurality of in the up and down and left and right direction position adjustable first welding torch, and the first welding torch is used for welding triangle hoop and long reinforcing bar and the number of first welding torch is same with the number of triangle hoop to be welded, the second welding unit includes two second welding torches in the left and right direction position adjustable and opposite arrangement, and the second welding torch is used for welding ground pile pipe and long reinforcing bar, positioning clamping unit is equipped with two groups and is arranged in the front and back direction interval, is used for positioning clamping triangle hoop, long reinforcing bar and ground pile pipe, and the position of two groups of positioning clamping units is adjustable in the front and back direction and is adjustable in the angle on the circumferential direction. Compared with prior art, the utility model can improve welding production efficiency greatly, and save the cost.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic ground pile processing equipment, specifically to an automated welding equipment for photovoltaic grouting ground piles. Background Technology

[0002] With the increasing installed capacity of photovoltaic (PV) power generation equipment both domestically and internationally, the demand for PV support systems is growing. These systems include PV helical ground piles, precast PV pipe piles, PV drilled cast-in-place piles, and PV cast-in-place piles (also called PV cement ground piles). PV cast-in-place piles can support the weight of the PV support system and PV panels, resist natural disasters such as strong winds and earthquakes, and ensure the safe and stable operation of the PV power generation system under various environmental conditions. PV cast-in-place piles can be customized according to different geological conditions and project requirements. For example, in soft soil foundations, the pile length or diameter can be increased to improve bearing capacity, while in rock foundations, special anchoring methods can be used for fixation.

[0003] like Figure 1 As shown, the photovoltaic cast-in-place pile has three long steel bars 101 arranged in a triangle. Multiple equally spaced triangular stirrups 103 are welded to each of the three long steel bars 101. A metal pile tube 102 is welded to the inside of one end of each of the three long steel bars 101. Currently, the welding method for photovoltaic cast-in-place piles involves multiple workers positioning the long steel bars 101, pile tube 102, and triangular stirrups 103 separately, and then welding them using a welding torch. This method requires multiple workers to work simultaneously, resulting in high labor intensity. Furthermore, each welding operation can only proceed after the entire photovoltaic cast-in-place pile has been welded, disassembled, and repositioned before the next welding operation can begin, leading to low production efficiency.

[0004] To address the aforementioned issues, Chinese invention patent application CN119927537A discloses a welding fixture for photovoltaic cement pile reinforcement cages, comprising a welding robot and a welding positioning mechanism. The welding positioning mechanism includes a support unit with a first positioning station and a second positioning station. While the welding robot welds the photovoltaic cement pile at the second positioning station, workers can simultaneously load and position the pile pipe, triangular hoops, and reinforcing bars at the first positioning station, ensuring that neither positioning station is idle. By alternating between the first and second positioning stations for welding and loading the photovoltaic cement pile, the number of manual material handling operations can be reduced, labor intensity can be lowered, and production efficiency can be improved. However, the aforementioned photovoltaic cement pile reinforcement cage welding fixture also has certain drawbacks. There are multiple weld points between the triangular hoops, long reinforcing bars, and pile pipes. The welding robot can only perform welding operations on a single weld point at a time, requiring repeated movements. Although automated welding is achieved, the improvement in welding efficiency is limited. Furthermore, the cost of using welding robots and positioners is relatively high. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an automated welding equipment for photovoltaic grouting piles, so as to solve the technical problems of limited welding efficiency and high equipment cost of existing photovoltaic grouting pile welding equipment.

[0006] To solve the above problems, the present invention provides an automated welding equipment for photovoltaic grouting piles, which adopts the following technical solution: An automated welding equipment for photovoltaic grouting piles includes a frame and a first welding unit, a second welding unit, and a positioning and clamping unit assembled on the frame. The first welding unit includes multiple first welding torches whose positions are adjustable in both the left-right and up-down directions. The first welding torches are used to weld triangular stirrups to long steel bars. The second welding unit includes two second welding torches that are adjustable in the left and right directions and arranged opposite each other. The second welding torches are used to weld the ground pile pipe to the long steel bar. The positioning and clamping unit is provided in two sets and is arranged at intervals in the front and back direction. It is used to position and clamp the triangular hoop, long steel bar and ground pile pipe. The position of the two sets of positioning and clamping units in the front and back direction is adjustable and the angle in the circumferential direction is adjustable, so that the welding positions of the triangular hoop, long steel bar and ground pile pipe can be moved to the bottom of the corresponding welding gun respectively.

[0007] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model also has two sets of spaced positioning and clamping units to position and clamp the triangular hoop, long steel bar, and ground pile pipe, realizing an alternating operation of one set for installing the workpiece and the other set for welding, avoiding the situation where the two sets of positioning and clamping units are idle; during welding, the multiple first welding guns of the first welding unit and the two second welding guns of the second welding unit can work simultaneously to realize the welding operation of the weld points between the triangular hoop and the long steel bar, as well as the weld points between the long steel bar and the ground pile pipe; after welding one position, the angle of the positioning and clamping unit can be adjusted to simultaneously weld the weld points at other corresponding positions. Compared with the traditional method of combining a single robot with a positioner, this utility model can realize the rotation of the positioning and clamping unit through a motor or other rotating structure, and the simultaneous operation of multiple weld points avoids multiple actions of a single robot, greatly improving welding efficiency and reducing welding costs.

[0008] Furthermore, the positioning and clamping unit includes a mounting base and a ground pile pipe positioning and clamping mechanism, a triangular hoop clamping mechanism, and a long steel bar support mechanism mounted on the mounting base. Multiple long steel bar support mechanisms are spaced apart in the left-right direction. Two adjusting seats are movably mounted on the frame in the front-back direction. The two mounting bases are rotatably mounted on the corresponding adjusting seats along the axes extending in the left-right direction. Each adjusting seat is equipped with an adjusting servo motor for driving the mounting base to rotate.

[0009] Beneficial effects: The speed of the servo motor can be adjusted to achieve precise adjustment of the circumferential angle of the positioning and clamping unit, thereby ensuring that the welding points on each side can be accurately rotated to the direct under the first and second welding units; the positioning and clamping mechanism of the ground pile pipe, the triangular hoop clamping mechanism and the long steel bar support mechanism can respectively and independently position and clamp the ground pile pipe, the triangular hoop and the long steel bar to ensure the quality of subsequent welding.

[0010] Furthermore, the ground pile pipe positioning and clamping mechanism includes a ground pile pipe positioning plate, positioning clamping components, and a round pipe clamping hook. The ground pile pipe positioning plate is movably assembled on the mounting base in the left-right direction. The ground pile pipe positioning plate is provided with a placement groove for placing the ground pile pipe, and the end of the ground pile pipe positioning plate is used to cooperate with the long steel bar for blocking. The positioning clamping component has an arc surface for tightly fitting the surface of the ground pile pipe. There are two positioning clamping components, located on both radial sides of the ground pile pipe. The round pipe clamping hook is hinged to the ground pile pipe positioning plate. An elastic reset structure is also provided between the round pipe clamping hook and the ground pile pipe positioning plate. The round pipe clamping hook clamps the ground pile pipe under the elastic force of the elastic reset structure to form a three-point positioning with the two positioning clamping components. The mounting base is provided with avoidance slots on the front and rear sides corresponding to the ground pile pipe positioning plate to avoid the second welding torch.

[0011] Beneficial effects: When placing the ground pile pipe, simply lift the round pipe clamping hook, place the ground pile pipe between the two positioning clamps, and then release the round pipe clamping hook to quickly place and position the ground pile pipe; simultaneously, the ground pile pipe positioning plate abuts against the long rebar, enabling rapid positioning of the end position of the long rebar and improving positioning efficiency. When the positioning clamping unit flips, the avoidance slot allows the two second welding torches to extend normally into the welding position, ensuring welding operations.

[0012] Furthermore, the number of the first welding units is the same as the number of the second welding units and the number of the positioning and clamping units.

[0013] Beneficial effects: It enables simultaneous welding of the workpiece positioned at each positioning and clamping unit, greatly improving welding efficiency.

[0014] Furthermore, the positioning clamp is arbitrarily mounted on the positioning plate of the ground pile pipe in the radial direction.

[0015] Beneficial effects: On the one hand, by adjusting the position of the positioning clamp, it can be ensured that it is in tight contact with the ground pile pipe; on the other hand, it can be used to position and clamp ground pile positioning pipes of different diameters, thus improving versatility.

[0016] Furthermore, the triangular clamping mechanism includes fixed clamping plates arranged at intervals in the left-right direction and movable clamping plates movably assembled on the mounting base in the left-right direction; each fixed clamping plate has a rebar positioning groove for long rebars to pass through at the same position, each movable clamping plate is fixed on a movable long strip, and the mounting base is provided with a linear drive component connected to the movable long strip to drive it to move left and right.

[0017] Beneficial effects: After the long steel bar is passed through the steel bar positioning groove, the triangular stirrup can be quickly fitted onto the steel bar and moved to the fixed clamp for positioning. When the linear drive is activated, the triangular stirrup is automatically clamped, avoiding manual operation. Furthermore, the long steel bar support mechanism is assembled between adjacent fixed clamping plates and movable clamping plates, including a telescopic shaft extending in the left-right direction, a fixed ear plate assembly, multiple movable ear plate assemblies, and three supports. The telescopic shaft includes a fixed shaft section connected to the fixed clamping plate and a movable shaft section connected to the movable clamping plate. The fixed ear plate assembly includes three evenly distributed fixed ear plates fixed on the fixed shaft section and a first connecting rod hinged to the corresponding fixed ear plate. Each movable ear plate assembly includes three movable ear plates fixed on the movable shaft section that correspond one-to-one with the fixed ear plates and a second connecting rod hinged to the corresponding movable ear plate. The other ends of the first and second connecting rods located at corresponding positions are both hinged to the supports at that position.

[0018] Beneficial effects: While the linear drive unit moves the movable clamping plate, it also pulls the movable shaft section to move, thereby causing the first and second connecting rods to rotate. This drives the three top supports to press against the three long steel bars respectively, until the three long steel bars are pressed tightly against the three corners of the triangular stirrups.

[0019] Furthermore, the first welding unit also includes a first welding seat, a first vertical adjustment plate, a welding torch suspension beam, and a first cylinder. The first welding seat is movably assembled with the frame in the left-right direction, and the welding torch suspension beam is movably assembled with the first vertical adjustment plate in the up-down direction. Multiple first cylinders are spaced apart in the left-right direction, and the output end of each first cylinder is connected to the welding torch suspension beam. Multiple first welding torches are equally spaced on the welding torch suspension beam in the left-right direction, and an elastic grounding component for contacting the corresponding long steel bar is also provided on the side of each first welding torch on the welding torch suspension beam.

[0020] Furthermore, the second welding unit includes a second welding seat, a second cylinder, a second vertical adjustment plate, a finger cylinder, and a slide. The second welding seat is movably assembled with the frame in the left-right direction. The second cylinder is fixed relative to the second welding seat. The output end of the second cylinder is connected to the slide. The finger cylinder is connected to the slide. Both second welding guns are fixed at the output end of the finger cylinder.

[0021] Furthermore, the frame is provided with two welding gun tracks arranged parallel to each other in the front-to-back direction. The first welding seat and the second welding seat are respectively provided with sliders that slide in accordance with the two welding gun tracks. The frame is provided with two racks arranged parallel to each other in the front-to-back direction and extending in the left-to-right direction between the two welding gun tracks. The first welding seat is provided with a first servo motor, the second welding seat is provided with a second servo motor, and the clamping seat is provided with a third servo motor. The output shafts of the first servo motor, the second servo motor and the third servo motor are all connected to gears that mesh with the corresponding racks to drive the corresponding welding seats to move left and right. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the photovoltaic cast-in-place pile to be welded and processed according to this utility model. Figure 2 This is a three-dimensional structural diagram of the automated welding equipment for photovoltaic grouting ground piles of this utility model. Figure 3 for Figure 2 The main view; Figure 4 for Figure 2 The left view; Figure 5 This is a schematic diagram of the frame structure; Figure 6 This is a schematic diagram of the structure of the first welding unit; Figure 7 This is a schematic diagram of the structure of the second welding unit; Figure 8 This is a schematic diagram of the clamping unit. Figure 9 This is a schematic diagram of the grounding unit. Figure 10 This is a schematic diagram of the positioning clamping unit and the adjusting seat after assembly. Figure 11 A schematic diagram of the positioning and clamping mechanism for the ground pile pipe; Figure 12 This is a schematic diagram of a long steel bar support mechanism; Figure 13 This is a detailed schematic diagram showing the assembly of the long steel bar support mechanism and the triangular hoop clamping mechanism.

[0023] Explanation of reference numerals in the attached figures: 101. Long steel bars; 102. Ground pile pipes; 103. Triangular stirrups; 1. Frame; 11. Welding torch rail; 12. Welding torch rack; 13. Base rack; 14. Base slide rail; 2. First welding unit; 20. First gear; 21. First welding seat; 22. First vertical adjustment plate; 23. Welding torch cantilever beam; 24. First cylinder; 25. First welding torch; 26. First slider; 27. First vertical slide rail; 28. Elastic grounding component; 281. Grounding sleeve; 282. Grounding push rod; 283. Copper block connector; 29. ​​First servo motor; 3. Second welding unit; 30. Second welding seat; 31. Second cylinder; 32. Second vertical adjustment plate; 33. Finger cylinder; 34. Slide table; 35. Second servo motor; 36. Second gear; 37. Second slider; 38. Second welding torch; 39. Second vertical slide rail; 4. Positioning and clamping unit; 41. Mounting base; 411. Clearance slot; 42. Ground pile pipe positioning and clamping mechanism; 421. Ground pile pipe positioning plate; 422. Positioning and clamping component; 423. Round pipe clamping hook; 424. Connecting block; 425. Support plate; 426. Positioning slider; 43. Triangular hoop clamping mechanism; 431. Fixed clamping plate; 4311. Rebar positioning slot; 432. Movable clamping plate; 433. Movable long strip block; 434. Hydraulic cylinder; 435. Tie plate; 44. Long rebar top support mechanism; 441. Fixed shaft section; 442. Movable shaft section; 443. First connecting rod; 444. Second connecting rod; 445. Fixed ear plate; 446. Movable ear plate; 447. Top support; 448. Flange; 45. First transverse slide rail; 46. Second transverse slide rail; 5. Clamping unit; 51. Clamping seat; 52. Third vertical adjustment plate; 53. Third cylinder; 54. Clamping component; 541. Rebar slot; 542. Arc-shaped clamping groove; 55. Third servo motor; 56. Third gear; 57. Third vertical slide rail; 58. I-beam seat; 59. Third slider; 6. Adjustment seat; 61. Base plate; 62. Vertical plate; 63. Seat body slider; 7. Grounding unit; 71. Grounding base; 72. Fourth cylinder; 73. Fourth slider; 74. Sleeve; 75. Grounding copper block; 76. Telescopic rod; 8. Adjust the servo motor; 9. Fourth servo motor. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] An embodiment of the automated welding equipment for photovoltaic injection piles provided by this utility model: like Figure 2 and Figure 3As shown, the automated welding equipment for photovoltaic grouting piles includes a frame 1 and a first welding unit 2, a second welding unit 3, a positioning and clamping unit 4, a pressing unit 5, a grounding unit 7, and an adjusting seat 6, all mounted on the frame 1.

[0026] In this embodiment, as Figure 5 As shown, the frame 1 is a frame structure, divided into upper, middle and lower layers. The upper layer is used to install the welding machine and welding rods. The middle layer is used to install the first welding unit 2, the second welding unit 3, the clamping unit 5 and the grounding unit 7. The lower layer is used to install the positioning and clamping unit 4 and the adjusting seat 6.

[0027] For ease of description, the length direction of the frame 1 is defined as the left-right direction, the width direction as the front-back direction, and the height direction as the up-down direction. Two parallel and spaced welding torch tracks 11 are fixed to the middle layer of the frame 1, each extending in the left-right direction. Two parallel and spaced welding torch racks 12, extending in the left-right direction, are also fixed to the frame 1 between the two welding torch tracks 11. The welding torch racks 12 extend in the left-right direction. Multiple parallel and spaced seat rails 14 are fixed to the lower layer of the frame 1, extending in the front-back direction. Two parallel and spaced seat racks 13, extending in the front-back direction, are fixed to the lower layer of the frame 1 between two seat rails 14.

[0028] like Figure 6 As shown, the first welding unit 2 includes a first welding seat 21, a first vertical adjustment plate 22, a welding torch suspension beam 23, a first cylinder 24, a first welding torch 25, an elastic grounding component 28, and a first servo motor 29.

[0029] The bottom of the first welding seat 21 is connected to a first slider 26 that slides in accordance with the two welding gun tracks 11. A first vertical adjustment plate 22 is connected to one side of the first welding seat 21. The first vertical adjustment plate 22 is provided with multiple first vertical slide rails 27 arranged in parallel left and right. The welding gun suspension beam 23 extends in the left and right direction. A first vertical slide seat that slides in accordance with each first vertical slide rail 27 is fixed on the welding gun suspension beam 23.

[0030] The first cylinder 24 is fixed on the first welding seat 21, and multiple cylinders are arranged in the left-right direction. The output end of each first cylinder 24 is connected to the welding torch suspension beam 23, thereby driving the welding torch suspension beam 23 to move up and down. The first welding torch 25 and the elastic grounding component 28 are arranged in groups, that is, one first welding torch 25 corresponds to one elastic grounding component 28. In this embodiment, there are six first welding torches 25 and six groups of elastic grounding components 28. The six first welding torches 25 are installed at equal intervals on the welding torch suspension beam 23, and the six groups of elastic grounding components 28 are installed at equal intervals on the welding torch suspension beam 23. The six first welding torches 25 can simultaneously perform welding operations on the triangular stirrups at six positions. Of course, in other embodiments, the number of first welding torches 25 is not limited to six. The welding torch cantilever beam 23 has a U-shaped structure, with a fixed shaft extending in the left-right direction connected to it. A first large clamp, adjustable in the left-right direction, is located on the fixed shaft corresponding to the position of the first welding torch 25. An angle adjustment plate for adjusting the angle of the first welding torch 25 is fixed to the first large clamp. The first welding torch 25 is connected to the angle adjustment plate via a first small clamp. The elastic grounding assembly 28 includes a grounding sleeve 281, a grounding push rod 282, a grounding nut, and a copper block connector 283. The grounding sleeve 281 is clamped by a second small clamp, which is then assembled onto the fixed shaft via a second large clamp. The grounding push rod 282 is coaxially and movably installed inside the grounding sleeve 281. A first spring is sleeved on the grounding push rod 282, and a stop block is provided on the grounding push rod 282. The stop block is connected to the bottom end of the first spring and can move up and down within the grounding sleeve 281. The bottom end of the grounding push rod 282 is fixed with the copper block connector 283. When the first welding torch 25 moves downward under the drive of the first cylinder 24, the copper block connector 283 also moves downward. When the copper block connector 283 contacts the corresponding long steel bar 101 but the first welding torch 25 has not yet moved into place, the long steel bar 101 will push the copper block connector 283 upward, thereby compressing the first spring and ensuring that the copper block connector 283 and the corresponding long steel bar 101 are always in contact.

[0031] The first servo motor 29 is fixed on the first welding base 21, and the output shaft of the first servo motor 29 is connected to a first gear 20 that meshes with one of the welding torch racks 12. When the first servo motor 29 is working, the entire first welding unit 2 moves in the left and right direction through the meshing motion of the first gear 20 and the welding torch rack 12.

[0032] like Figure 3 and Figure 7 As shown, the second welding unit 3 is located between the clamping unit 5 and the first welding unit 2, and includes a second welding seat 30, a second cylinder 31, a second welding gun 38, a second vertical adjustment plate 32, a finger cylinder 33, a second servo motor 35, and a slide table 34.

[0033] The bottom of the second welding base 30 is connected to a second slider 37 that slides in accordance with the two welding torch tracks 11. A second vertical adjustment plate 32 is also connected to the bottom of the second welding base 30, and the second vertical adjustment plate 32 has a second vertical slide rail 39 extending vertically. A slide table 34 is slidably mounted on the second vertical slide rail 39. A second cylinder 31 is fixed to the second welding base 30, and its output end is connected to the slide table 34 to drive the slide table 34 to move up and down. A finger cylinder 33 is fixed to the slide table 34 and moves up and down with it. Two second welding torches 38 are provided, each fixed to one of the two output ends of the finger cylinder 33. A second servo motor 35 is fixed to the second welding base 30, and its output shaft is connected to a second gear 36 that meshes with another welding torch rack 12. When the second servo motor 35 is working, the entire second welding unit 3 moves in the left-right direction through the meshing motion of the second gear 36 and the welding torch rack 12. Two second welding torches 38 are used to weld the ground pile pipe to three long steel bars.

[0034] like Figure 8 As shown, the clamping unit 5 includes a clamping seat 51, a third vertical adjusting plate 52, a third cylinder 53, a clamping component 54, and a third servo motor 55. A third slider 59, corresponding to and slidingly engaged with the two welding torch tracks 11, is connected to the bottom of the clamping seat 51. The third vertical adjusting plate 52 is connected to the bottom of the clamping seat 51, and a mounting plate is vertically connected to the third vertical adjusting plate 52. The third cylinder 53 is fixed to the mounting plate. A third vertical slide rail 57 is also fixed to the third vertical adjusting plate 52, and a third vertical slide block is slidably mounted on the third vertical slide rail 57. An I-beam base 58 is fixed to the third vertical slide block. The output end of the third cylinder 53 is connected to the I-beam base 58, and the clamping component 54 is fixed to the I-beam base 58. In this embodiment, the clamping member 54 is an L-shaped plate. The bottom end of the clamping member 54 is provided with an arc-shaped clamping groove 542 that matches the ground pile pipe and a rebar slot 541 that matches the long rebar. The arc-shaped clamping groove 542 and the rebar slot 541 communicate with each other. When the second welding torch 38 performs welding operations, the clamping member 54 clamps the ground pile pipe 102 and the long rebar 101, preventing the long rebar 101 from warping and affecting the welding quality. The output shaft of the third servo motor 55 is connected to a third gear 56 that meshes with the corresponding welding torch rack 12.

[0035] like Figure 9 As shown, the grounding unit 7 includes a grounding base 71, a fourth cylinder 72, a sleeve 74, and a grounding copper block 75. The bottom of the grounding base is provided with a fourth slider 73 that slides in accordance with the two welding gun tracks 11. The fourth cylinder 72 is fixed on the grounding base 71. The output end of the fourth cylinder 72 is connected to the sleeve 74. A telescopic rod 76 is movably assembled inside the sleeve 74. The bottom of the telescopic rod 76 is connected to the grounding copper block 75. A second spring is connected between the sleeve 74 and the telescopic rod 76.

[0036] like Figure 3 and Figure 10 As shown, the adjusting seat 6 is a U-shaped seat, including a base plate 61 and vertical plates 62 fixed to the left and right ends of the base plate 61. There are two adjusting seats 6, arranged at intervals in the front-back direction. The bottom of the base plate 61 of each adjusting seat 6 is connected to a seat slider 63 that slides in accordance with the corresponding seat slide rail 14. A fourth servo motor 9 is fixed on each base plate 61. A fourth gear is connected to the output shaft of the fourth servo motor 9, and the fourth gear meshes with the seat rack 13 at the corresponding position. The position of the adjusting seat 6 in the front-back direction is adjusted by the operation of the fourth servo motor 9. There are two sets of positioning clamping units 4. The two sets of positioning clamping units 4 have the same structure and are located in the U-shaped groove of the corresponding adjusting seat 6, respectively, for positioning and clamping the triangular stirrup 103, the long steel bar 101, and the ground pile pipe 102. An adjusting servo motor 8 is installed on one side of the vertical plate 62 of the adjusting seat 6. The adjusting servo motor 8 is used to drive the entire positioning clamping unit 4 to rotate in the U-shaped groove of the adjusting seat 6.

[0037] In this embodiment, as Figure 10 As shown, each positioning and clamping unit 4 includes a mounting base 41 and a ground pile pipe positioning and clamping mechanism 42, a triangular hoop clamping mechanism 43, and a long steel bar support mechanism 44 assembled on the mounting base 41.

[0038] Mounting base 41 is also a U-shaped base. The left and right ends of mounting base 41 are rotatably assembled with the vertical plates 62 on both sides via rotating shafts. The inner side of mounting base 41 is provided with a support plate 425 for supporting the ground pile pipe, and a first transverse slide rail 45 extending in the left and right direction is also fixed thereon.

[0039] The long steel bar support mechanism 44 is provided with multiple units spaced apart in the left and right directions. Two adjustment seats 6 are movably mounted on the frame 1 in the front and back directions. Two mounting seats 41 are rotatably mounted on the corresponding adjustment seats 6 along the axes extending in the left and right directions. Each adjustment seat 6 is provided with an adjustment servo motor 8 for driving the mounting seat 41 to rotate.

[0040] like Figure 11As shown, the pile pipe positioning and clamping mechanism 42 includes a pile pipe positioning plate 421, a positioning clamping element 422, and a round pipe clamping hook 423. The pile pipe positioning plate 421 and the supporting upright plate 425 are arranged parallel to each other in the left and right directions. The bottom of the pile pipe positioning plate 421 is provided with a positioning slider 426 that slides in cooperation with the first transverse slide rail 45. Both the pile pipe positioning plate 421 and the supporting upright plate 425 are provided with placement grooves for placing pile pipes. The right end of the pile pipe positioning plate 421 is used to stop and cooperate with two long steel bars to position the ends of the two long steel bars. The positioning clamping element 422 is a cylindrical roller bearing, and its outer circumferential surface is an arc surface for adhering to the surface of the pile pipe 102. There are two positioning clamping elements 422, which are symmetrically arranged on both radial sides of the pile pipe 102 and fixed to the pile pipe positioning plate 421 by connecting blocks 424. The circular tube clamping hook 423 is hinged to the ground pile pipe positioning plate 421. An elastic reset structure is also provided between the circular tube clamping hook 423 and the ground pile pipe positioning plate 421. Under the elastic force of the elastic reset structure, the circular tube clamping hook 423 clamps the ground pile pipe 102, forming a three-point positioning with the two positioning clamps 422. The end face of the circular tube clamping hook 423 stops the remaining long steel bar 101, thereby positioning the long steel bar 101. The elastic reset structure can be a torsion spring with a large elastic force installed on the hinge shaft between the circular tube clamping hook 423 and the ground pile pipe positioning plate 421. When the circular tube clamping hook 423 is rotated, it overcomes the torsion spring force; after being released, it automatically springs back and clamps. The ground pile pipe positioning plate 421 has an inclined elongated hole at the position corresponding to the two connecting blocks 424. The purpose of the elongated hole is to adjust the fixed position of the connecting block 424 and the ground pile pipe positioning plate 421, and then adjust the position of the positioning clamp 422 in the radial direction of the ground pile pipe. On the one hand, it is convenient to clamp the ground pile pipe 102, and on the other hand, it can match ground pile pipes 102 of different diameters.

[0041] like Figure 10 As shown, the mounting base 41 is provided with clearance slots 411 on the front and rear sides of the ground pile pipe positioning plate 421. The clearance slots 411 are oblique slots, the purpose of which is that when the entire positioning clamping unit 4 is flipped, the two second welding guns 38 can be inserted into the welding position of the ground pile pipe 102 and the long steel bar 101 without interference, so as to ensure the normal progress of the welding operation.

[0042] like Figure 13As shown, the triangular hoop clamping mechanism 43 includes fixed clamping plates 431, movable clamping plates 432, movable elongated blocks 433, and hydraulic cylinders 434. The number of fixed clamping plates 431 is the same as the number of triangular hoop bars to be clamped, and the fixed clamping plates 431 are arranged at equal intervals in the left-right direction. The mounting base 41 has two tie plates 435 extending in the left-right direction and spaced apart in the front-back direction. Each fixed clamping plate 431 is fixed to the tie plate 435 by bolts. A movable groove is formed between the two tie plates 435, and the movable elongated blocks 433 are located within the movable groove. The movable clamping plates 432 are arranged in a one-to-one correspondence with the fixed clamping plates 431, and each movable clamping plate 432 is fixed to the movable elongated blocks 433 by bolts. The hydraulic cylinder 434, as a linear drive component, is fixed within the mounting base 41, and the drive end of the hydraulic cylinder 434 is connected to the movable elongated blocks 433. The mounting base 41 is provided with a second transverse slide rail 46 at the position of the movable slot. The movable long strip 433 slides in cooperation with the second transverse slide rail 46, thereby achieving stable left and right movement. Each fixed clamping plate 431 is provided with a steel bar positioning slot 4311 for the long steel bar 101 to pass through at the same position. The triangular hoop 103 is sleeved on the outside of the long steel bar 101 and is clamped and positioned by the movable clamping plate 432 and the fixed clamping plate 431.

[0043] like Figure 10 and Figure 13 As shown, the long steel bar support mechanism 44 is assembled between adjacent fixed clamping plates 431 and movable clamping plates 432, with multiple sets spaced apart in the left-right direction. Figure 12 As shown, each set of long steel bar support mechanisms 44 includes a telescopic shaft extending in the left-right direction, a fixed ear plate 445 assembly, multiple movable ear plate 446 assemblies, and three supports 447. The telescopic shaft includes a fixed shaft section 441 and a movable shaft section 442. The movable shaft section 442 is sleeved outside the fixed shaft section 441 and can slide left and right relative to the fixed shaft section 441. One end of the fixed shaft section 441 is connected to the fixed clamping plate 431 through a flange 448, and the end of the movable shaft section 442 is connected to the movable clamping plate 432 through a flange 448. The fixed ear plate 445 assembly includes three evenly distributed fixed ear plates 445 fixed on the fixed shaft section 441 and a first connecting rod 443 hinged to the corresponding fixed ear plate 445. Multiple sets of movable ear plate 446 assemblies are arranged at equal intervals along the axial direction of the movable shaft section 442. Each set of movable ear plate 446 assemblies includes three movable ear plates 446 fixed circumferentially on the movable shaft section 442 and a second connecting rod 444 hinged to the corresponding movable ear plate 446. The positions of the movable ear plates 446 correspond one-to-one with the positions of the fixed ear plates 445. The other ends of the first connecting rod 443 and the second connecting rod 444 are both hinged to a top support 447 at that position.

[0044] In this utility model, the first servo motor 29, the second servo motor 35, the third servo motor 55, the fourth servo motor 9, the adjustment servo motor 8, the first cylinder 24, the second cylinder 31, the third cylinder 53, the fourth cylinder 72, the finger cylinder 33, the oil cylinder 434 and other driving components are all connected to the PLC control system and start working according to the program set by the PLC control system.

[0045] The working process of the automated welding equipment for photovoltaic cast-in-place piles of this utility model is as follows: The worker stands at one of the positioning and clamping units 4 on one side, places the ground pile pipe 102 on the support plate 425 and the ground pile pipe positioning plate 421, and clamps and positions it using the positioning clamping piece 422 and the round pipe clamping hook 423; the triangular stirrup 103 is pre-fitted onto the top long steel bar 101, and the top long steel bar 101 is placed at the steel bar positioning slot 4311 on each fixed clamping plate 431, so that the left end of the top long steel bar 101 abuts against the end face of the round pipe clamping hook 423; then each triangular stirrup 103 is slid between the fixed clamping plate 431 and the movable clamping plate 432, and finally the triangular stirrup 102 is clamped and positioned. Two more long steel bars 101 are inserted at the other two corners of the pile 3 and abut against the end face of the pile pipe positioning plate 421. Then, the hydraulic cylinder 434 is activated, causing each movable clamping plate 432 to move toward the fixed clamping plate 431 to clamp the triangular stirrup 103. During the movement of the movable clamping plate 432, the telescopic shaft section is moved, causing the first connecting rod 443 and each of the second connecting rods 444 to rotate, which respectively supports the three top supports. The three top supports automatically press the three long steel bars 101 to the three corners of the triangular stirrup 103, thus achieving the positioning and clamping of the long steel bars 101, triangular stirrup 103, and pile pipe 102. Then, the servo motor 8 is started, driving the entire positioning and clamping unit 4 to move to the position of the first welding gun 25 and the second welding gun 38 that have been adjusted. The pressure plate of the clamping unit 5 moves down, clamping the pile pipe and the corresponding long steel bars, and welding operations can then be carried out. When one welding point is completed, the first welding torch 25, the second welding torch 38, and the pressure plate are raised. The servo motor 8 is adjusted to control the entire positioning and clamping unit 4 to rotate 120° clockwise, allowing welding to proceed to the second location. After welding, the servo motor 8 is adjusted to control the entire positioning and clamping unit 4 to reset, and then rotates 120° counterclockwise to weld the last location. During the welding process, workers can load, position, and clamp the ground pile pipe 102, long steel bar 101, and triangular stirrup 103 at the positioning and clamping unit 4 on the other side, ensuring that the two positioning and clamping units 4 are not idle and can perform alternating welding operations.

[0046] It should be noted that when the number of first welding torches 25 is less than the number of triangular stirrups, the first welding seat 21 needs to move at least two steps to ensure that all triangular stirrups can be welded.

[0047] This utility model's automated welding equipment for photovoltaic cast-in-place piles can simultaneously perform multi-point welding, greatly improving welding efficiency. Furthermore, the workpiece can be quickly and automatically positioned and clamped, saving operator time. The two positioning and clamping units are never idle; one performs workpiece positioning and clamping, while the other performs welding operations, alternating between the two. The multi-welding gun collaboration significantly shortens the welding cycle for a single piece and optimizes heat input distribution, reducing the risk of deformation. Fully automatic precision control eliminates human error, ensuring consistent and stable weld formation, achieving a doubling of production capacity, a leap in efficiency, and a significant improvement in quality. The entire equipment uses only simple drive components such as cylinders, servo motors, and hydraulic cylinders, resulting in lower costs.

[0048] In other embodiments, where the mounting space on the frame allows, the number of the first welding units is the same as the number of the second welding units and the number of the positioning and clamping units. That is, after the workpieces at each positioning and clamping unit are positioned and clamped, each positioning and clamping unit can perform welding operations simultaneously, realizing multi-threaded operation. The number of positioning and clamping units is not limited to the two in the above embodiments, and can also be three or more.

[0049] In other embodiments, the left-right movement of the clamping unit, the first welding unit, and the second welding unit can also be achieved by a servo motor and a lead screw and nut mechanism. That is, the bottom of the first welding seat, the second welding seat, and the clamping seat are all provided with moving blocks that are threaded to the lead screw. The servo motor is connected to the lead screw drive to drive the lead screw to rotate. At this time, it is necessary to calculate in advance the installation position of the clamping seat, the first welding seat, and the second welding seat on the lead screw, so as to ensure that when the lead screw rotates, it simultaneously drives the clamping seat, the first welding seat, and the second welding seat to move to the set position, and finally ensures that the positions of the first welding gun, the second welding gun, and the pressure plate are accurate.

[0050] In other embodiments, the position adjustment of the entire positioning and clamping unit in the front-back direction can be achieved by a cylinder, that is, by connecting the cylinder to the adjusting seat. To ensure the accuracy of the movement, the cylinder is fully extended or fully retracted each time. A positioning stop structure that cooperates with the stop of the adjusting seat is set at the corresponding position on the frame to ensure that the adjusting seat can move to the corresponding position each time. This position is the position where the first welding gun, the second welding gun and the pressure plate can work.

[0051] It should be noted that the positioning and clamping mechanism for the ground pile pipe is not limited to the form in this embodiment. As long as it can clamp and position the ground pile pipe, it is acceptable. For example, the positioning and clamping of the ground pile pipe can be achieved by fixing a three-jaw chuck or other structures on the ground pile pipe positioning plate.

[0052] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0053] In the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automated welding equipment for photovoltaic cast-in-place piles, characterized in that, Includes a frame and a first welding unit, a second welding unit, and a positioning and clamping unit assembled on the frame; The first welding unit includes multiple first welding torches whose positions are adjustable in both the left-right and up-down directions. The first welding torches are used to weld triangular stirrups to long steel bars. The second welding unit includes two second welding torches that are adjustable in the left and right directions and arranged opposite each other. The second welding torches are used to weld the ground pile pipe to the long steel bar. The positioning and clamping unit is provided in at least two sets and is arranged at intervals in the front-back direction for positioning and clamping triangular hoops, long steel bars and ground pile pipes. The positions of the two sets of positioning and clamping units in the front-back direction are adjustable and the angles in the circumferential direction are adjustable, so that the positions to be welded between the triangular hoops, long steel bars and ground pile pipes can be moved to the bottom of the corresponding welding guns respectively.

2. The automated welding equipment for photovoltaic cast-in-place piles according to claim 1, characterized in that, The positioning and clamping unit includes a mounting base and a ground pile positioning and clamping mechanism, a triangular hoop clamping mechanism, and a long steel bar support mechanism mounted on the mounting base. Multiple long steel bar support mechanisms are spaced apart in the left-right direction. Two adjusting seats are movably mounted on the frame in the front-back direction. The two mounting bases are rotatably mounted on the corresponding adjusting seats along the axes extending in the left-right direction. Each adjusting seat is equipped with an adjusting servo motor for driving the mounting base to rotate.

3. The automated welding equipment for photovoltaic cast-in-place piles according to claim 2, characterized in that, The ground pile pipe positioning and clamping mechanism includes a ground pile pipe positioning plate, positioning clamping components, and a round pipe clamping hook. The ground pile pipe positioning plate is movably assembled on the mounting base in the left-right direction. The ground pile pipe positioning plate is provided with a placement groove for placing the ground pile pipe, and the end of the ground pile pipe positioning plate is used to cooperate with the long steel bar for blocking. The positioning clamping component has an arc surface for tightly fitting the surface of the ground pile pipe. There are two positioning clamping components, located on both radial sides of the ground pile pipe. The round pipe clamping hook is hinged to the ground pile pipe positioning plate. An elastic reset structure is also provided between the round pipe clamping hook and the ground pile pipe positioning plate. The round pipe clamping hook clamps the ground pile pipe under the elastic force of the elastic reset structure to form a three-point positioning with the two positioning clamping components. The mounting base is provided with avoidance slots on the front and rear sides corresponding to the ground pile pipe positioning plate to avoid the second welding torch.

4. The automated welding equipment for photovoltaic cast-in-place piles according to claim 1, characterized in that, The number of the first welding units is the same as the number of the second welding units and the number of the positioning and clamping units.

5. An automated welding equipment for photovoltaic cast-in-place piles according to any one of claims 2-4, characterized in that, The triangular clamping mechanism includes fixed clamping plates spaced apart in the left-right direction, movable clamping plates movably mounted on the mounting base in the left-right direction, and a rebar positioning groove for long rebars to pass through at the same position on each fixed clamping plate. Each movable clamping plate is fixed on a movable long strip, and the mounting base is provided with a linear drive component connected to the movable long strip to drive it to move left and right.

6. The automated welding equipment for photovoltaic cast-in-place piles according to claim 5, characterized in that, The long steel bar support mechanism is assembled between adjacent fixed clamps and movable clamps, and includes a telescopic shaft extending in the left-right direction, a fixed ear plate assembly, multiple movable ear plate assemblies, and three supports. The telescopic shaft includes a fixed shaft section connected to the fixed clamp and a movable shaft section connected to the movable clamp. The fixed ear plate assembly includes three evenly distributed fixed ear plates fixed on the fixed shaft section and a first connecting rod hinged to the corresponding fixed ear plate. Each movable ear plate assembly includes three movable ear plates fixed on the movable shaft section that correspond one-to-one with the fixed ear plates and a second connecting rod hinged to the corresponding movable ear plate. The other ends of the first and second connecting rods located at corresponding positions are both hinged to the supports at that position.

7. The automated welding equipment for photovoltaic cast-in-place piles according to claim 1, characterized in that, The first welding unit further includes a first welding seat, a first vertical adjustment plate, a welding torch suspension beam, and a first cylinder. The first welding seat is movably assembled with the frame in the left-right direction, and the welding torch suspension beam is movably assembled with the first vertical adjustment plate in the up-down direction. Multiple first cylinders are spaced apart in the left-right direction, and the output end of each first cylinder is connected to the welding torch suspension beam. Multiple first welding torches are equally spaced on the welding torch suspension beam in the left-right direction, and an elastic grounding component for contacting the corresponding long steel bar is provided on the side of each first welding torch on the welding torch suspension beam.

8. The automated welding equipment for photovoltaic cast-in-place piles according to claim 7, characterized in that, The second welding unit includes a second welding seat, a second cylinder, a second vertical adjustment plate, a finger cylinder, and a slide. The second welding seat is movably assembled with the frame in the left-right direction. The second cylinder is fixed on the second welding seat. The output end of the second cylinder is connected to the slide. The finger cylinder is connected to the slide. Both second welding guns are fixed at the output end of the finger cylinder.

9. The automated welding equipment for photovoltaic cast-in-place piles according to claim 8, characterized in that, It also includes a clamping unit mounted on the frame. The clamping unit includes a clamping seat, a third vertical adjustment plate, a third cylinder, and a clamping component. The clamping seat is movably mounted to the frame in the left-right direction. The third cylinder is relatively fixed on the clamping seat and its output end is connected to the clamping component. The clamping component is adjustablely mounted on the third vertical adjustment plate in the up-down direction. The clamping component is provided with an arc-shaped pressure groove that matches the ground pile pipe and a steel bar slot that matches the long steel bar. The arc-shaped pressure groove and the steel bar slot are connected.

10. The automated welding equipment for photovoltaic cast-in-place piles according to claim 9, characterized in that, The frame is provided with two welding gun tracks arranged parallel to each other in the front-to-back direction. The first welding seat and the second welding seat are respectively provided with sliders that slide in accordance with the two welding gun tracks. The frame is provided with two racks arranged parallel to each other in the front-to-back direction and extending in the left-to-right direction between the two welding gun tracks. The first welding seat is provided with a first servo motor, the second welding seat is provided with a second servo motor, and the clamping seat is provided with a third servo motor. The output shafts of the first servo motor, the second servo motor and the third servo motor are all connected to gears that mesh with the corresponding racks to drive the corresponding welding seats to move left and right.

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