U-shaped profile tailor-welding equipment for solar mounting rack and assembly type building group

Abstract

The U-shaped profile tailor-welding equipment comprises a base, a lifting frame is arranged above the base, a rotatable pressing disc is arranged at the top in the lifting frame, and two centralizing blocks which are symmetrical relative to the axis of the pressing disc are arranged in the lifting frame; the centralizing blocks are transversely and slidably connected with the lifting frame, and the opposite sides of the two centralizing blocks are elastically and slidably connected with positioning shafts. According to the welding device, the base, the rotating disc, the supporting plate, the lifting frame, a centralizing block, a supporting sleeve, a positioning shaft and a limiting block are arranged, so that a to-be-welded branch pipe and U-shaped steel can be rapidly and accurately positioned after being fed and before being welded, and through the arrangement of a supporting rod, a sixth electric push rod and a laser welding head, the rotating function of the rotating disc is matched; therefore, compared with the prior art, the equipment has the advantages of being high in welding precision and high in welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding equipment technology, and in particular to U-shaped profile welding equipment for solar panel mounting frames and prefabricated building units. Background Technology

[0002] A solar panel mounting frame is a steel frame that supports large-area photovoltaic panels. Since there are many photovoltaic panels, the corresponding mounting frame occupies a large area. Therefore, in order to improve the convenience of installation, the solar panel mounting frame is usually designed to be detachable.

[0003] Currently, prefabricated mounting brackets are widely used in prefabricated buildings. For example, solar mounting brackets are usually fastened to the top of prefabricated buildings using prefabricated mounting brackets. The solar mounting brackets are usually installed before the photovoltaic panels are installed. The top of the prefabricated building is usually equipped with prefabricated mounting brackets, which typically include a load-bearing beam and a U-shaped channel. A row of connecting holes is opened on the load-bearing beam. These connecting holes are connected to the U-shaped profile by bolts. The bottom of the solar mounting bracket is equipped with legs, which are usually welded to the U-shaped profile. Common mounting brackets mainly include two rows of legs, front and back. Since the photovoltaic panels need a certain tilt angle, the length of the front row of legs is shorter than that of the back row of legs. Both the front and back rows of legs include a common structure, which is a structure connected to the load-bearing beam. This structure mainly includes a branch pipe. The outer wall of the branch pipe has a connecting hole near the top. The bottom of the branch pipe is fixedly connected to the bottom wall of the U-shaped profile. This fixed connection requires welding. The setting of the connecting hole allows the branch pipe to be inserted into extension pipes of different lengths with insertion holes through bolts. Therefore, when welding branch pipes and U-shaped profiles, it is necessary to ensure the perpendicularity of both after welding and the position of the connecting holes. Existing equipment for welding branch pipes and U-shaped steel has shortcomings such as low positioning accuracy, inconvenient loading and unloading operations, and limited applicability.

[0004] Therefore, this invention proposes a U-shaped profile welding device for solar panel mounting racks and prefabricated building units. Summary of the Invention

[0005] The purpose of this invention is to provide a U-shaped profile welding device for solar panel mounting racks and prefabricated assembly, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: U-shaped profile welding equipment for solar panel mounting racks and prefabricated building units includes a base, a lifting frame above the base, a rotatable pressure plate at the top of the lifting frame, two symmetrical straightening blocks symmetrical about the pressure plate axis inside the lifting frame, the straightening blocks and the lifting frame being laterally slidably connected, and positioning shafts elastically slidably connected to opposite sides of the two straightening blocks, the positioning shafts being perpendicular to and intersecting the axis of the pressure plate, a turntable near the bottom of the base above the base, a U-shaped groove formed on the outer peripheral wall of the turntable, a baffle located on one side of the bottom of the U-shaped groove on the top wall of the turntable, a support plate slidably connected to the base below the turntable, a support sleeve fixedly installed on the top of the support plate, a limit sleeve slidably connected up and down inside the support sleeve, a support rod fixedly connected to one side of the turntable on the top wall of the base, and a laser welding head near the axis of the turntable connected to the top of the support rod via an electric push rod.

[0007] As a further description of the above technical solution: The lifting frame has a portal frame structure and guide beams are fixedly connected to its two opposite inner side walls. A guide sleeve with one end sleeved outside the guide beam is fixedly connected to the back of the straightening block. The guide sleeve and the guide beam are slidably connected. An electric push rod is fixedly connected to the top of the lifting frame. The actuating end of the electric push rod is hinged to one side of the guide sleeve through a connecting plate.

[0008] As a further description of the above technical solution: The front of the straightening block has a trapezoidal groove, and the bottom of the trapezoidal groove has a sliding hole that is sleeved on the outside of the positioning shaft. The back of the straightening block is welded with a grooved plate, and a support spring is provided between the grooved plate and the positioning shaft. A conical positioning platform is fixedly connected to one end of the positioning shaft facing the trapezoidal groove.

[0009] As a further description of the above technical solution: Rotating rollers are provided on both inclined surfaces within the trapezoidal groove, and a roller is provided at one end of the conical positioning platform.

[0010] As a further description of the above technical solution: The top wall of the turntable is fixedly connected to a positioning plate located on one side of the baffle. A U-shaped plate is fixedly connected to the back of the baffle. A drive shaft that is rotatably connected to the positioning plate and screwed into the middle of the U-shaped plate is rotatably connected to the positioning plate.

[0011] As a further description of the above technical solution: The limiting sleeve has three circumferentially evenly distributed support shafts near the top, which are slidably connected to the limiting sleeve. One end of the support shaft inside the limiting sleeve is fixedly connected to a baffle. A spring is sleeved on the support shaft between the baffle and the inner wall of the limiting sleeve. A pad located below the base is fixedly sleeved at the bottom of the limiting sleeve. A compression spring is sleeved on the limiting sleeve between the pad and the base. A guide wheel is connected to one side of the baffle. A lifting shaft is sleeved through the middle of the limiting sleeve. A limiting platform is fixedly connected to the top of the lifting shaft. A slope surface that abuts against the guide wheel is opened on the limiting platform.

[0012] As a further description of the above technical solution: The bottom of the pallet is fixedly connected to an electric push rod two via a base. The output shaft of the electric push rod two is fixedly connected to the bottom end of the lifting shaft. A U-shaped notch is provided on one side of the base to allow the base to move.

[0013] As a further description of the above technical solution: The bottom wall of the tray is fixedly connected to limiting plates located on both sides of the base, and the bottom of the base is fixedly connected to an electric push rod three. The output shaft of the electric push rod three is fixedly connected to one side of one of the limiting plates.

[0014] As a further description of the above technical solution: At least three limiting shafts are arranged through the base and surround the turntable. The limiting shafts are rotatably connected to the base and the top of the shafts are fixedly connected to the limiting wheels. The outer circumference of the turntable is provided with a rolling groove that abuts against the limiting wheels. Gears are fixedly sleeved on two of the limiting shafts. A C-shaped gear ring that meshes with the gears is fixedly connected to the bottom of the turntable.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, a base, turntable, pallet, lifting frame, straightening block, support sleeve, positioning shaft, and limiting block are provided to enable the branch pipe and U-shaped steel to be welded to be quickly and accurately positioned after loading and before welding. By setting up support rods, electric push rods, and laser welding heads, and then cooperating with the rotation function of the turntable, the joint between the branch pipe and the U-shaped steel can be rotated and welded. Therefore, compared with the prior art, this equipment has the advantages of high welding precision and high welding efficiency.

[0016] 2. In this invention, by setting a trapezoidal groove, a rotating roller, a support spring, and a conical positioning platform, the outer surface of the branch pipe will not be damaged when it is adjusted. At the same time, when the branch pipe rotates, the conical positioning platform can adaptively insert into the connection hole on the branch pipe under the guidance of the roller. This setting makes the adjustment and positioning of the branch pipe more convenient and faster.

[0017] 3. In this invention, by setting a support shaft, a lifting shaft, a compression spring, a limiting platform, and a slope, the limiting sleeve can be centered and positioned for branch pipes of different inner diameters through the support shaft, which facilitates the welding of branch pipes and U-shaped steel of different specifications. This makes the welding application range of this equipment wider. Moreover, the upper and lower sliding fit structure of the limiting sleeve and the support sleeve makes it more convenient to release the restriction after the branch pipe and U-shaped steel are welded, and has the advantage of making it more convenient to unload materials after welding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the U-shaped profile welding equipment for solar panel mounting racks and prefabricated building units proposed in this invention; Figure 2 for Figure 1 A diagram at the bottom; Figure 3 for Figure 2 A diagram showing the result after removing the base; Figure 4 This is a partial schematic diagram showing the connection between the tray, support sleeve, and limiting sleeve of the U-shaped profile welding equipment for solar mounting racks and prefabricated building units proposed in this invention. Figure 5 for Figure 4 Enlarged view of the "a" in the middle section; Figure 6 for Figure 4 A diagram at the bottom; Figure 7 This is a schematic diagram showing the connection between the straightening block and the positioning shaft of the U-shaped profile welding equipment for solar mounting racks and prefabricated building units proposed in this invention. Figure 8 Structural diagram of the support pipes at the bottom of the solar panel mounting frame and the U-shaped steel connecting them to the prefabricated building; Figure 9 This is a schematic diagram of the U-shaped profile welding equipment for solar mounting racks and prefabricated construction units proposed in this invention, when it is connected to branch pipes and U-shaped steel. Figure 10 for Figure 9 A schematic diagram showing the branch pipe entering between two straightening blocks; Figure 11 for Figure 9 A diagram of the back; Figure 12 for Figure 11 A magnified view of the "b" in the middle; Figure 13 This is a structural diagram showing the welded structure of the branch pipes at the bottom of the solar panel mounting frame and the U-shaped steel connecting them to the prefabricated building.

[0019] Legend: 1. Base; 11. U-shaped notch; 2. Lifting frame; 21. Guide beam; 3. Pressure plate; 4. Straightening block; 41. Guide sleeve; 42. Trapezoidal groove; 421. Rotating roller; 43. Sliding hole; 44. Groove plate; 5. Positioning shaft; 51. Conical positioning platform; 511. Roller; 6. Turntable; 61. U-shaped groove; 62. Positioning plate; 63. Roll groove; 64. C-shaped gear ring; 7. Baffle; 71. U-shaped plate; 8. Support plate; 81. Machine base; 82. Limiting plate; 9. Support sleeve; 101. Limiting sleeve; 1011. Pad; 102. Electric push rod one; 10 21. Connecting plate; 103. Support spring; 104. Drive shaft; 105. Support shaft; 1051. Baffle; 10511. Guide wheel; 106. Spring; 107. Compression spring; 108. Lifting shaft; 1081. Limiting platform; 10811. Slope; 109. Electric push rod two; 110. Electric push rod three; 120. Limiting shaft; 1201. Limiting wheel; 1202. Gear; 130. Branch pipe; 1301. Connecting hole; 140. U-shaped steel; 1401. Process hole; 150. Support rod; 160. Electric push rod six; 170. Laser welding head. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] Please see Figure 1-13 This equipment is used for welding U-shaped profiles to solar panel mounting frames and prefabricated building structures. The solar panel mounting frame includes a branch pipe 130 that provides vertical support and is detachably connected. The outer wall of the branch pipe 130 has a connection hole 1301 near the top. A U-shaped steel 140 is detachably connected to the prefabricated building. Before the solar panel mounting frame is fixedly installed on the prefabricated building, the bottom of the branch pipe 130 and the U-shaped steel 140 need to be welded together. The function of this equipment is to accurately weld the bottom of the branch pipe 130 and the bottom wall of the U-shaped steel 140, ensuring the position of the connection hole 1301 and the perpendicularity of the branch pipe 130 and the U-shaped profile. The U-shaped steel 140 has a process hole 1401 in the middle of the bottom of the groove, and mounting holes are opened near both ends of the bottom of the U-shaped steel 140. There are connecting holes on the load-bearing beam of the prefabricated building that match the mounting holes. The U-shaped steel 140 is fixedly connected to the load-bearing beam through bolts, mounting holes, and connecting holes.

[0022] In this technology, the device includes a base 1, a lifting frame 2 is provided above the base 1, and a rotatable pressure plate 3 is provided at the top inside the lifting frame 2. When the lifting frame 2 moves up and down, it drives the pressure plate 3 to move together. The top inside the lifting frame 2 is fixedly connected to a vertical shaft that is rotatably connected to the bottom end of the pressure plate 3. When the pressure plate 3 moves downward, it can squeeze the top end of the branch pipe 130 located below it.

[0023] The lifting frame 2 is equipped with two symmetrical straightening blocks 4 relative to the axis of the pressure plate 3. The straightening blocks 4 and the lifting frame 2 are laterally slidably connected. In specific implementation, the lifting frame 2 has a portal frame structure and guide beams 21 are fixedly connected to its two opposite side walls. A guide sleeve 41 with one end sleeved outside the guide beam 21 is fixedly connected to the back of the straightening block 4. The guide sleeve 41 and the guide beam 21 are slidably connected. When the straightening blocks 4 move, they will move closer to and further away from the axis of the pressure plate 3. When there is a branch pipe 130 to be welded between the two straightening blocks 4, controlling the two straightening blocks 4 to move in opposite directions will approximately squeeze the outer wall of the branch pipe 130, so that the branch pipe 130 is in a vertical position.

[0024] Furthermore, an electric push rod 102 is fixedly connected to the top of the lifting frame 2. The actuating end of the electric push rod 102 is hinged to one side of the guide sleeve 41 through the connecting plate 1021. One connecting plate 1021 corresponds to one guide sleeve 41. When the electric push rod 102 is actuated, it can drive the corresponding two straightening blocks 4 to move synchronously in opposite directions through the two connecting plates 1021. In specific implementation, a horizontal plate is fixedly connected to the output shaft end of the electric push rod 102. One end of the two connecting plates 1021 is hinged to both ends of the horizontal plate. Two guide rods can be welded to the top of the lifting frame 2, and then guide holes that are adapted to slide on the horizontal plate are opened.

[0025] In this embodiment, an electric push rod 5 is connected between the base 1 and the guide beam 21. When the electric push rod 5 is activated, it can drive the lifting frame 2 to rise and fall. Two columns are welded to the top of the base 1, and two vertical tubes on the lifting frame 2 are respectively sleeved on the outside of the two columns. The columns and vertical tubes slide together vertically.

[0026] The two straightening blocks 4 are elastically slidably connected to the opposite sides by positioning shafts 5. The positioning shafts 5 are perpendicular to and intersect the axis of the pressure plate 3. The function of the positioning shafts 5 is to be inserted into the connecting hole 1301 on the branch pipe 130. After insertion, the branch pipe 130 is in a positioning state. Specifically, the position of the connecting hole 1301 on the branch pipe 130 is fixed when it is welded.

[0027] Furthermore, a trapezoidal groove 42 is provided on the front side of the straightening block 4, and a sliding hole 43 is provided at the bottom of the trapezoidal groove 42, which is fitted onto the outside of the positioning shaft 5. A grooved plate 44 is welded to the back side of the straightening block 4, and a support spring 103 is provided between the grooved plate 44 and the positioning shaft 5. Specifically, a limiting plate located in the grooved plate 44 is welded to the other end of the positioning shaft 5. The outer diameter of the limiting plate is larger than the diameter of the sliding hole 43. The limiting plate and one end of the support spring 103 abut against each other, and the support spring 103 supports the positioning shaft 5. Continue to apply elastic thrust. A conical positioning platform 51 is fixedly connected to one end of the positioning shaft 5 facing the trapezoidal groove 42. The small end of the conical positioning platform 51 faces outward. The diameter of the connecting hole 1301 on the branch pipe 130 is larger than the outer diameter of the small end of the conical positioning platform 51 and smaller than the outer diameter of the large end of the conical positioning platform 51. When the conical positioning platform 51 enters the connecting hole 1301 and generates extrusion force, the branch pipe 130 will not loosen, shake or tilt, making the positioning of the branch pipe 130 more accurate.

[0028] In this embodiment, a rotating roller 421 is provided on both inclined surfaces within the trapezoidal groove 42. Specifically, a groove is formed on the inclined surface, and the roller shafts at both ends of the rotating roller 421 are rotatably connected to the two ends within the groove. A roller 511 is provided at one end of the conical positioning platform 51. The size of the roller 511 is set to be able to enter and exit the connecting hole 1301. In use, the outer walls of the rotating roller 421 and the roller 511 will abut against the outer wall of the branch pipe 130. The arrangement of the rotating roller 421 and the roller 511 can reduce the frictional resistance of the rotation of the branch pipe 130.

[0029] A turntable 6 is located near the bottom of the base 1. The turntable 6 is rotatable. In specific implementation, at least three limiting shafts 120 are provided through the base 1 and surround the turntable 6. In this embodiment, there are four limiting shafts 120. The limiting shafts 120 are rotatably connected to the base 1 and the top of the shafts is fixedly connected to the limiting wheels 1201. The outer periphery of the turntable 6 is provided with a rolling groove 63 that abuts against the limiting wheels 1201. The rolling groove 63 is a trapezoidal groove structure. The limiting shafts 120 support the turntable 6 through the cooperation of the limiting wheels 1201 and the rolling groove 63. Gears 1202 are fixedly sleeved on two of the limiting shafts 120. A C-shaped gear ring 64 that meshes with the gears 1202 is fixedly connected to the bottom of the turntable 6. When the two limiting shafts 120 rotate, the turntable 6 can be driven to rotate through the meshing of the gears 1202 and the C-shaped gear ring 64. The outer peripheral wall of the turntable 6 is provided with a U-shaped groove 61. The bottom of the U-shaped groove 61 is located at the rotation center of the turntable 6. The top wall of the turntable 6 is provided with a baffle 7 located on one side of the bottom of the U-shaped groove 61. The baffle 7 and the U-shaped groove 61 are perpendicular to each other. When the turntable 6 rotates, it can drive the baffle 7 to revolve. The function of the baffle 7 is to limit the U-shaped steel 140 located above the turntable 6. Specifically, one side of the U-shaped steel 140 is in contact with one side of the baffle 7.

[0030] In this embodiment, the bottom of the base 1 is rotatably connected to a drive shaft via an ear plate. Two worm gears are fixedly mounted on the drive shaft. Then, worm wheels that mesh with the worm gears are fixedly connected to the bottom ends of the two limit shafts 120 mentioned above. A control motor 2 is fixedly installed on one side of one of the ear plates. The output shaft of the control motor 2 is fixedly connected to one end of the drive shaft. The control motor 2 is a servo motor. After the control motor 2 is started, it can drive the drive shaft to rotate.

[0031] Below the turntable 6, there is a support plate 8 that is slidably connected to the base 1. The sliding direction of the support plate 8 is horizontal. A support sleeve 9 is fixedly installed on the top of the support plate 8. When the turntable 6 rotates to a certain angle, the support plate 8 can drive the support sleeve 9 to enter and exit the U-shaped groove 61. A limit sleeve 101 is slidably connected inside the support sleeve 9. The upper end face of the support sleeve 9 is slightly higher than the upper end face of the turntable 6. The support sleeve 9 plays the role of supporting the U-shaped steel 140, and the limit sleeve 101 plays the role of horizontally limiting the U-shaped steel 140. Specifically, after the U-shaped steel 140 is fitted outside the limit sleeve 101 through the process hole 1401, its lower end face contacts the top wall of the support sleeve 9. The process hole 1401 and the limit sleeve 101 are clearance-fitted. In use, the top of the limit sleeve 101 can be set into a conical shape to facilitate the insertion of the process hole 1401 and the limit sleeve 101. After the limiting sleeve 101 enters the position coaxial with the turntable 6, one side of the U-shaped steel 140 connected to the limiting sleeve 101 will abut against the baffle 7. When the turntable 6 is rotated, the turntable 6 will drive the U-shaped steel 140 to rotate together through the baffle 7.

[0032] Among them, the bottom wall of the tray 8 is fixedly connected to the limiting plates 82 located on both sides of the base 1, and the bottom of the base 1 is fixedly connected to the electric push rod 110. The output shaft of the electric push rod 110 is fixedly connected to one side of one of the limiting plates 82. The electric push rod 110 adopts a structure with servo control function. When the electric push rod 110 moves, it can drive the tray 8 to move. Two guide rods are fixedly connected between the two limiting plates 82. A slide rail is opened on the base 1 and sleeved on the outside of the guide rod. The slide rail and the guide rod are slidably connected.

[0033] In this embodiment, a positioning plate 62 located on one side of a baffle 7 is fixedly connected to the top wall of the turntable 6. A U-shaped plate 71 is fixedly connected to the back of the baffle 7. A drive shaft 104, which is screwed into the middle of the U-shaped plate 71, is rotatably connected to the positioning plate 62. Specifically, a threaded sleeve is welded to the middle of the U-shaped plate 71 and fitted onto the outside of the drive shaft 104. The outer wall of the drive shaft 104 has an external thread that matches the threaded sleeve. When the drive shaft 104 rotates, it can adjust the radial position of the baffle 7 on the turntable 6. This arrangement facilitates the positioning of U-shaped steel 140 of different widths. In use, a control motor can be fixedly installed on one side of the positioning plate 62. The control motor is a servo motor, and its output shaft is fixedly connected to one end of the drive shaft 104. The control motor provides driving force to the rotation of the drive shaft 104.

[0034] Since the outer diameter of the aforementioned limiting sleeve 101 is fixed, it is inconvenient to center and limit the branch pipes 130 with different inner diameters. Therefore, in this technical solution, three circumferentially evenly distributed support shafts 105 are provided through the sleeve wall of the limiting sleeve 101 near the top. The support shafts 105 and the limiting sleeve 101 are slidably connected, and a baffle 1051 is fixedly connected to one end of the support shafts 105 inside the limiting sleeve 101. In specific implementation, a limiting hole is opened on the peripheral wall of the limiting sleeve 101, which is sleeved on the outside of the support shafts 105. The limiting hole and the support shaft 105 are slidably connected. A spring 106 is sleeved on the support shaft 105 between the baffle 1051 and the inner wall of the limiting sleeve 101. A pad 1011 located below the base 1 is fixedly sleeved on the bottom end of the limiting sleeve 101. A compression spring 107 is sleeved on the limiting sleeve 101 between the pad 1011 and the base 1. The compression spring 107 supports the limiting sleeve through the pad 1011. 101 applies an upward elastic force. A through hole is opened in the middle of the pad 1011 to slide and adapt to the lifting shaft 108. The outer diameter of the pad 1011 is larger than the inner diameter of the support sleeve 9. A guide wheel 10511 is connected to one side of the baffle 1051. The lifting shaft 108 is sleeved through the middle of the limiting sleeve 101. The top of the lifting shaft 108 is fixedly connected to the limiting platform 1081. A slope 10811 is opened on the limiting platform 1081 to abut against the guide wheel 10511. When the limiting platform 1081 moves upward, it will push the guide wheel 10511 through the slope 10811, thereby causing the support shaft 105 to move outward. When the support shaft 105 moves outward, its free end will squeeze the branch pipe 130 with a large gap sleeve outside the limiting sleeve 101, so that the branch pipe 130 and the process hole 1401 are in a coaxial state. The up and down movement of the limiting platform 1081 is controlled by the up and down movement of the lifting shaft 108.

[0035] It should be noted that when the lifting shaft 108 moves downward to a certain position, it will drive the entire limiting sleeve 101 to move downward together. At this time, the compression spring 107 will be compressed. When the limiting sleeve 101 is disengaged from the process hole 1401, it will release the restriction on the U-shaped steel 140. At this time, when the two straightening blocks 4 are controlled to move in the opposite direction to the principle branch pipe 130, the welded branch pipe 130 and U-shaped steel 140 can be easily removed.

[0036] In this embodiment, the bottom of the pallet 8 is fixedly connected to an electric push rod 109 via a base 81. The output shaft of the electric push rod 109 is fixedly connected to the bottom end of the lifting shaft 108. A U-shaped notch 11 is provided on one side of the base 1 to allow space for the base 81. The electric push rod 109 adopts a structure with servo control function. The up and down movement of the lifting shaft 108 is controlled by the electric push rod 109. By changing the height of its rise, the lifting shaft 108 can control the outward movement of the support shaft 105. Thus, the process holes 1401 on the branch pipes 130 and U-shaped steel 140 with different inner diameters can be positioned coaxially.

[0037] Furthermore, a vertical rod can be welded to the free end of the support shaft 105. When the support shaft 105 moves outward, the support rod will press against the inner wall of the branch pipe 130. Then, a hidden groove that matches the vertical rod can be opened on the outer wall of the limiting sleeve 101. In other words, when the support shaft 105 moves inward, it can drive the vertical rod into the hidden groove.

[0038] In this embodiment, a support rod 150 located on one side of the turntable 6 is fixedly connected to the top wall of the base 1. The top of the support rod 150 is connected to a laser welding head 170 near the axis of the turntable 6 via an electric push rod 160. When the turntable 6 rotates, it can drive the U-shaped steel 140 above it to rotate. The laser beam of a certain power emitted by the laser welding head 170 performs circumferential welding on the joint between the branch pipe 130 and the U-shaped steel 140.

[0039] In this technology, a control box is installed on the base 1. The control box has a built-in controller (PLC) and an operation panel is set on the outside of the control box. The equipment can be operated by the buttons / touch screen on the operation panel. The configuration of the controller (PLC) in conjunction with the electric push rod, servo motor and laser beam cutting processing of the laser welding head 170 mentioned above makes the welding process of this equipment constitute an intelligent welding system.

[0040] Working principle: In use, the control plate 8 is slid outward until the limiting sleeve 101 is located outside the U-shaped groove 61. Then, the process hole 1041 on the U-shaped steel 140 is fitted onto the outside of the limiting sleeve 101. The support sleeve 9 lifts the U-shaped steel 140, and at the same time, the U-shaped steel 140 is manually controlled to be in a state approximately perpendicular to the moving direction of the support plate 8. Then, the bottom end of the branch pipe 130 is fitted onto the outside of the limiting sleeve 101 from above the U-shaped steel 140. At this time, the bottom end of the branch pipe 130 is in contact with the bottom wall inside the U-shaped steel 140. Then, the lifting shaft 108 is raised a certain distance, and the slope 10811 pushes the guide wheel 10511. The guide wheel 10511 drives the support shaft 105 to move axially outward a certain distance. The three support shafts 105 push the branch pipe 130 laterally. When the support sleeve 9 is in a state approximately coaxial with the process hole 1401, it is controlled to slide inward. When the support sleeve 9 enters the U-shaped groove 61 and is coaxial with the turntable 6, one side of the baffle 7 is in contact with the outer side of the U-shaped steel 140. At this time, the branch pipe 130 is located below the pressure plate 3 and between the two straightening blocks 4. Then, the lifting frame 2 is controlled to descend until the pressure plate 3 is pressed against the top of the branch pipe 130. Then, the electric push rod 102 is activated. Driven by the two connecting plates 1021, the two straightening blocks 4 move towards each other until the rotating roller 421 presses against the outer wall of the branch pipe 130, so that the branch pipe 130 is straightened. At the same time, under the push of the support spring 103, the roller 511 also presses against the outer wall of the branch pipe 130. Because the branch pipe 130 and the U-shaped steel 1401 are in a state approximately coaxial with the process hole 1401, the support sleeve 9 enters the U-shaped groove 61 and is coaxial with the turntable 6. At this time, the support sleeve 9 is in a state approximately coaxial with the process hole 1401. When the support sleeve 9 enters the U-shaped groove 61 and is coaxial with the turntable 6, one side of the baffle 7 is in contact with the outer side of the U-shaped steel 140. At this time, the support sleeve 130 is located below the pressure plate 3 and between the two straightening blocks 4. Then, the lifting frame 2 is controlled to descend until the pressure plate 3 is pressed against the top of the branch pipe 130. Then, the electric push rod 102 is activated. Driven by the two connecting plates 1021, the two straightening blocks 4 move towards each other until the rotating roller 421 presses against the outer wall of the branch There is a squeezing friction between 40. The turntable 6 rotates one revolution, and the turntable 6 pushes the U-shaped steel 140 to rotate via the baffle 7. When the U-shaped steel 140 rotates, it uses frictional resistance to drive the branch pipe 130 to rotate. During the rotation of the branch pipe 130, the roller 511 rolls into the connecting hole 1301, causing the conical positioning platform 51 to insert into the connecting hole 1301. At this time, the branch pipe 130 is locked. After the branch pipe 130 is locked, the turntable 6 will slip relative to the branch pipe 130 when it rotates, the purpose of which is to ensure that the U-shaped steel 140 is in the correct position. Then, the two straightening blocks 4 are controlled to move in opposite directions to disengage from the branch pipe 130. The electric push rod 160 is activated to control the position of the laser welding head 170, and the laser welding on the base 1 is started. The laser welding head 170... The emitted laser beam welds the joint between the branch pipe 130 and the U-shaped steel 140, while simultaneously controlling the turntable 6 to rotate to achieve circumferential welding. After welding is completed, the lifting frame 2 is raised, and then the U-shaped groove 61 on the turntable 6 is brought to its initial position. The support plate 8 is then moved outward, at which point the welded branch pipe 130 and U-shaped steel 140 are taken away from the welding area. Then, the lifting shaft 108 is lowered, and the spring 106 pushes the support shaft 105 inward through the baffle 1051. As the lifting shaft 108 continues to descend, it will drive the limiting sleeve 101 downward through the limiting platform 1081 until it is submerged in the support sleeve 9. At the same time, the limiting sleeve 101 disengages from the process hole 1401, and the compression spring 107 is compressed. At this point, the welded structural component can be easily removed.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A U-shaped profile welding equipment for solar panel mounting frames and prefabricated building units, comprising a base (1), characterized in that, A lifting frame (2) is provided above the base (1). A rotatable pressure plate (3) is provided at the top of the lifting frame (2). Two straightening blocks (4) symmetrical about the axis of the pressure plate (3) are provided inside the lifting frame (2). The straightening blocks (4) and the lifting frame (2) are slidably connected laterally. Positioning shafts (5) are elastically slidably connected to the opposite sides of the two straightening blocks (4). The positioning shafts (5) and the axis of the pressure plate (3) are perpendicular and intersecting. A turntable (6) is provided above the base (1) near the bottom. A U-shaped groove (6) is provided on the outer peripheral wall of the turntable (6). 1) The top wall of the turntable (6) is provided with a baffle (7) located on one side of the bottom of the U-shaped groove (61). The bottom of the turntable (6) is provided with a support plate (8) that is slidably connected to the base (1). The top of the support plate (8) is fixedly provided with a support sleeve (9). The support sleeve (9) is slidably connected with a limit sleeve (101). The top wall of the base (1) is fixedly connected with a support rod (150) located on one side of the turntable (6). The top of the support rod (150) is connected to a laser welding head (170) near the axis of the turntable (6) via an electric push rod six (160).

2. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated construction units according to claim 1, characterized in that, The lifting frame (2) has a portal frame structure and guide beams (21) are fixedly connected to its two opposite inner side walls. A guide sleeve (41) with one end sleeved outside the guide beam (21) is fixedly connected to the back of the straightening block (4). The guide sleeve (41) and the guide beam (21) are slidably connected. An electric push rod (102) is fixedly connected to the top of the lifting frame (2). The actuating end of the electric push rod (102) is hinged to one side of the guide sleeve (41) through a connecting plate (1021).

3. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated building units according to claim 1, characterized in that, The front of the straightening block (4) is provided with a trapezoidal groove (42), and the bottom of the trapezoidal groove (42) is provided with a sliding hole (43) sleeved on the outside of the positioning shaft (5). The back of the straightening block (4) is welded with a groove plate (44), and a support spring (103) is provided between the groove plate (44) and the positioning shaft (5). A conical positioning platform (51) is fixedly connected to one end of the positioning shaft (5) facing the trapezoidal groove (42).

4. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated construction units according to claim 3, characterized in that, Rotating rollers (421) are provided on both inclined surfaces within the trapezoidal groove (42), and a roller (511) is provided at one end of the conical positioning platform (51).

5. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated building units according to claim 1, characterized in that, The top wall of the turntable (6) is fixedly connected to a positioning plate (62) located on one side of the baffle (7), and the back of the baffle (7) is fixedly connected to a U-shaped plate (71). The positioning plate (62) is rotatably connected to a transmission shaft (104) that is screwed into the middle of the U-shaped plate (71).

6. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated construction units according to claim 1, characterized in that, The limiting sleeve (101) has three circumferentially evenly distributed support shafts (105) near the top, which are slidably connected to the limiting sleeve (101). One end of the support shaft (105) located inside the limiting sleeve (101) is fixedly connected to a baffle (1051). A spring (106) is sleeved on the support shaft (105) between the baffle (1051) and the inner wall of the limiting sleeve (101). A pad located below the base (1) is fixedly sleeved at the bottom end of the limiting sleeve (101). Plate (1011), the limiting sleeve (101) is fitted with a compression spring (107) located between the pad plate (1011) and the base (1), the side of the baffle (1051) is connected to a guide wheel (10511), the middle of the limiting sleeve (101) is fitted with a lifting shaft (108), the top of the lifting shaft (108) is fixedly connected to a limiting platform (1081), and the limiting platform (1081) is provided with a slope (10811) that abuts against the guide wheel (10511).

7. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated construction units according to claim 6, characterized in that, The bottom of the pallet (8) is fixedly connected to an electric push rod (109) via a base (81). The output shaft of the electric push rod (109) is fixedly connected to the bottom end of the lifting shaft (108). A U-shaped notch (11) is provided on one side of the base (1) to make way for the base (81).

8. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated building units according to claim 1, characterized in that, The bottom wall of the tray (8) is fixedly connected to the limiting plates (82) located on both sides of the base (1), and the bottom of the base (1) is fixedly connected to the electric push rod three (110). The output shaft of the electric push rod three (110) is fixedly connected to one side of one of the limiting plates (82).

9. The U-shaped profile welding equipment for solar panel mounting frames and prefabricated building units according to claim 1, characterized in that, At least three limiting shafts (120) are provided through the base (1) and surround the turntable (6). The limiting shafts (120) are rotatably connected to the base (1) and the top of the shafts (120) is fixedly connected to the limiting wheels (1201). The outer periphery of the turntable (6) is provided with a rolling groove (63) that abuts against the limiting wheels (1201). Gears (1202) are fixedly sleeved on two of the limiting shafts (120). The bottom of the turntable (6) is fixedly connected to a C-shaped gear ring (64) that meshes with the gears (1202).

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