Steel structure butt joint device

Abstract

The invention relates to the technical field of steel structure butt joint, in particular to a steel structure butt joint device which comprises a lifting frame, an overturning frame, two workbenches, a conveying belt, a welding unit and a lifting unit, the lifting unit is used for driving the lifting frame to ascend and descend, and the lifting frame is provided with an overturning unit used for driving the overturning frame to overturn up and down. The overturning frame is provided with a driving unit used for driving the two workbenches to be close to or away from each other, the workbenches are provided with clamping units used for clamping steel plates, and the welding unit is used for welding the steel plates which are in butt joint on the two workbenches; the conveying belt is located below the workbench, when the clamping unit is overturned to the position between the workbench and the conveying belt, the steel plate disengaged from the clamping unit falls down to the conveying belt, and the clamping unit can move to clamp the steel plate on the conveying belt. The welding efficiency and the welding quality of the steel plate can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure butt jointing, and in particular to a steel structure butt jointing device. Background Art

[0002] Steel structures are structures made of steel and are one of the main types of building structures. Within the building structure field, butt welding of steel plates is a common joining method. Its core purpose is to melt the edges of the workpieces to form a continuous metallurgical bond, thereby meeting structural strength, sealing, or other functional requirements.

[0003] Through searching, Chinese patent announcement number CN219945122U discloses a steel structure docking device, which includes a base plate, the bottom of the base plate is fixedly connected to a fixed plate, one side of the fixed plate is respectively fixedly connected to a cylinder and a guide rail, one end of the cylinder piston rod is fixedly connected to a first rack, the first rack is slidably connected on one side of the guide rail, the upper surface of the base plate is rotatably connected to a penetrating rotating column, the bottom of the rotating column is fixedly connected to a first gear, and the second rack drives the placement plate to move respectively, which is convenient for docking the steel structure, and the docking error is small. The two clamping plates are convenient for clamping and fixing the steel structure to prevent the steel structure from shaking during docking, and the connecting block slides on the fixed bar to facilitate improving the stability of the second rack when sliding.

[0004] The above-mentioned related technologies have the following defects: for steel plates with a thickness greater than 8mm, it will be difficult to ensure full penetration during single-sided welding, so the steel plates need to be turned over to complete double-sided welding. In the above-mentioned related technologies, the turning of the steel plates needs to be done manually by workers, which is labor-intensive and affects the efficiency of steel plate docking; and the manual turning of the steel plates by workers can easily cause uneven force on the two steel plates that have completed the preliminary welding. At this time, the steel plates will be subjected to greater force in a short period of time, which may lead to the formation of welds and affect the quality of steel plate docking, so it needs to be improved. Summary of the Invention

[0005] In order to improve the welding efficiency and quality of steel plates, the present application provides a steel structure butt joint device.

[0006] The steel structure butt jointing device provided in the present application adopts the following technical solution: the steel structure butt jointing device includes a lifting frame, a turning frame, two work tables, a conveyor belt, a welding unit, and a lifting unit, the lifting unit is used to drive the lifting frame to move up and down, the lifting frame is provided with a turning unit for driving the turning frame to turn up and down, the turning frame is provided with a driving unit for driving the two work tables to move closer to or away from each other, the work tables are provided with a clamping unit for clamping steel plates, and the welding unit is used to weld the steel plates butted on the two work tables; The conveyor belt is located below the workbench. When the clamping unit flips over between the workbench and the conveyor belt, the steel plate separated from the clamping unit will fall down onto the conveyor belt, and the clamping unit can move to clamp the steel plate on the conveyor belt.

[0007] Optionally, the clamping unit includes two first hydraulic cylinders provided on the workbench, the piston rods of the two first hydraulic cylinders are provided with clamping plates, and the two clamping plates are used to clamp the steel plate together; Both clamping plates are provided with pressing plates for pressing the steel plate onto the workbench, and the opposite sides of the two pressing plates are provided with inclined guide plates; When the clamping unit flips over to between the workbench and the conveyor belt, the two guide plates will lift the steel plate upwards as they approach each other, causing the steel plate to move between the pressure plate and the workbench.

[0008] Optionally, a positioning unit is further included, which includes two positioning plates slidably connected to the turning frame in the vertical direction. The two positioning plates are located between the two workbenches and are respectively used to abut against the steel plates on the corresponding workbenches.

[0009] Optionally, the positioning plate is connected to the flip frame via a vertically arranged spring, and an extension plate is provided on the positioning plate and is located on the movement track of the clamping plate; The splint is provided with an inclined pressing surface. When the two splints approach each other, the pressing surface will press the extension plate, causing the positioning plate to move away from the steel plate on the corresponding workbench, and the spring will be deformed at this time.

[0010] Optionally, the driving unit includes two second hydraulic cylinders provided on the turning frame, and the piston rods of the two second hydraulic cylinders are respectively connected to corresponding workbenches; The invention also includes a control unit, the control unit including a controller and a first contact sensor provided on the clamping plate, the first contact sensor and the second hydraulic cylinder are both coupled to the controller; When the two clamps are clamped together on the steel plate, the first contact sensor will contact the steel plate and transmit a docking signal to the controller, and the controller will control the two second hydraulic cylinders to operate, so that the two steel plates on the workbench are docked.

[0011] Optionally, one of the workbenches is provided with an infrared transmitter, and the other workbench is provided with an infrared receiver; The welding unit includes a linear module, a welding gun is provided on the linear module, and the linear module, the welding gun, the infrared transmitter and the infrared receiver are all coupled to a controller; After receiving the docking signal, the controller will control the operation of the infrared transmitter and infrared receiver. When the two steel plates on the workbench are docked, the infrared receiver will receive the infrared rays emitted by the infrared transmitter and send the initial welding signal to the controller. The controller will control the linear module and welding gun to operate, and the linear module will drive the welding gun to complete the welding at the front docking point of the two steel plates.

[0012] Optionally, the flip unit includes a reduction motor provided on the lifting frame, wherein the output shaft of the reduction motor extends in a horizontal direction and is connected to the flip frame; The lifting unit includes a base, a third hydraulic cylinder is provided on the base, and a piston rod of the third hydraulic cylinder extends in a vertical direction and is connected to the lifting frame; A second contact sensor is provided at one end of the linear module, and the second contact sensor, the reduction motor and the third hydraulic cylinder are all coupled to the controller; When the linear module drives the welding gun to complete the welding of the front joint of the two steel plates, the welding gun will contact the second contact sensor, and the second contact sensor will send a flip signal to the controller. The controller will control the operation of the reduction motor and the third hydraulic cylinder. The third hydraulic cylinder will drive the lifting seat to rise first and then fall back to reset. The reduction motor will drive the flip frame to flip 180°, so that the joint on the back of the two steel plates moves to the movement trajectory of the welding gun.

[0013] Optionally, a third contact sensor is provided on the base, and the third contact sensor is coupled to the controller; After the lifting seat descends and resets, it will contact the third contact sensor, and the third contact sensor will send a secondary welding signal to the controller. The controller will control the linear module and the welding gun to operate, and the linear module will drive the welding gun to complete the welding of the back joints of the two steel plates.

[0014] Optionally, a fourth contact sensor is provided at the other end of the linear module, and the fourth contact sensor is coupled to the controller; When the linear module drives the welding gun to complete the welding of the back joint of the two steel plates, the welding gun will hit the fourth contact sensor, and the fourth contact sensor will send a blanking signal to the controller. The controller will control the reduction motor and the third hydraulic cylinder to operate. The third hydraulic cylinder will drive the lifting seat to rise first and then lower and reset. The reduction motor will drive the flip frame to flip 180 degrees, so that the front joint of the two steel plates moves to the movement trajectory of the welding gun. When the third contact sensor is touched an odd number of times, it will send a secondary welding signal to the controller. When the third contact sensor is touched an even number of times, it will send a blanking signal to the controller. The controller will control the operation of the first hydraulic cylinder, the second hydraulic cylinder and the conveyor belt. The first hydraulic cylinder will drive the splint to move and reset and separate from the steel plate. The second hydraulic cylinder will drive the workbench to move and reset, so that the two workbenches are separated, and the conveyor belt will transport the steel plate for unloading.

[0015] Optionally, when the steel plate clamped by the clamping unit is located between the workbench and the conveyor belt, the distance between the steel plate and the conveyor belt will be smaller than the thickness of the steel plate. After the steel plate is separated from the positioning plate, the spring will return to its natural state and cause the positioning plate to move back to its original position. At this time, the distance between the positioning plate and the conveyor belt will be smaller than the thickness of the steel plate. The two positioning plates are arranged in sequence along the conveying direction of the conveyor belt. The positioning plate located in front of the conveying direction of the conveyor belt is provided with an infrared sensor. The infrared sensor and the first hydraulic cylinder are both coupled to the controller. When the conveyor belt unloads the butted steel plates, the front end of the first steel plate used for preparation will contact the rear end of the butted steel plate, and the distance between the second steel plate used for preparation and the first steel plate used for preparation will be smaller than the distance between the two positioning plates; When the infrared sensor cannot detect the first steel plate used for material preparation, the first steel plate used for material preparation will contact the positioning plate located in the front side of the conveying direction of the conveyor belt, and the second steel plate used for material preparation will contact the positioning plate located in the rear side of the conveying direction of the conveyor belt. The infrared sensor will transmit a clamping signal to the controller, and the controller will control the operation of the first hydraulic cylinder. The first hydraulic cylinder will drive the clamping plate to move, so that the first steel plate and the second steel plate used for material preparation are clamped and fixed.

[0016] In summary, this application has the following beneficial technical effects: 1. Workers only need to prepare the steel plates on the conveyor belt, and this application can automatically complete the positioning, loading, clamping, docking, double-sided welding and unloading of the steel plates, and make the single-sided welded steel plates remain stable during the flipping process, thereby improving the welding efficiency and welding quality of the steel plates; 2. When the first steel plate used for stock preparation passes under the infrared sensor, the spring will return to its natural state and cause the positioning plate to descend. The first steel plate used for stock preparation will abut against the positioning plate located in front of the conveyor belt in the conveying direction, and the second steel plate used for stock preparation will abut against the positioning plate located in the rear of the conveyor belt in the conveying direction. At this time, the infrared sensor will not be able to detect the first steel plate used for stock preparation. The infrared sensor will send a clamping signal to the controller, which will control the operation of the first hydraulic cylinder. The first hydraulic cylinder will drive the clamping plate to move, so that the first and second steel plates used for stock preparation are clamped and fixed, thereby achieving automatic and precise clamping of the steel plates. 3. When the linear module drives the welding gun to complete the welding of the front joint of the two steel plates, the welding gun will contact the second contact sensor, and the second contact sensor will send a flip signal to the controller. The controller will control the reduction motor and the third hydraulic cylinder to operate. The third hydraulic cylinder will drive the lifting seat to rise first and then fall and reset. The reduction motor will drive the flip frame to flip 180°, so that the joint of the back of the two steel plates moves to the movement trajectory of the welding gun, and the steel plates will not collide with the conveyor belt during the flipping process. The steel plates will remain stable during the flipping process, avoiding the formation of welds between the two steel plates welded on one side. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 This is a schematic structural diagram of the conveyor belt, lifting frame, turning frame and workbench in an embodiment of the present application; Figure 3 This is a schematic structural diagram of the lifting frame, the turning frame and the workbench according to an embodiment of the present application; Figure 4 Schematic diagram of the structure of the workbench, positioning unit and clamping unit in the embodiment of the present application; Figure 5 It is a structural schematic diagram of the workbench and the clamping unit of an embodiment of the present application; Figure 6 It is a structural schematic diagram of the welding unit and the lifting unit in an embodiment of the present application.

[0018] Figure numerals: 1. lifting frame; 11. third guide rail; 2. turning frame; 21. second guide rail; 3. workbench; 31. first guide rail; 32. infrared transmitter; 33. infrared receiver; 4. positioning unit; 41. positioning plate; 42. limit rod; 43. spring; 44. extension plate; 45. infrared sensor; 5. clamping unit; 51. first hydraulic cylinder; 52. clamping plate; 521. pressing surface; 53. pressing plate; 54. guide plate; 55. first contact sensor; 6. welding unit; 61. linear module; 62. welding gun; 63. second contact sensor; 64. fourth contact sensor; 7. lifting unit; 71. base; 72. third hydraulic cylinder; 73. third contact sensor; 8. turning unit; 81. reduction motor; 9. driving unit; 91. second hydraulic cylinder; 10. control unit; 101. controller; 100. conveyor belt. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-6 This application is described in further detail.

[0020] The embodiment of the present application discloses a steel structure docking device. Figure 1As shown, the steel structure docking device includes a lifting frame 1, a turning frame 2, two workbenches 3, a positioning unit 4, a conveyor belt 100, a welding unit 6, a lifting unit 7, a turning unit 8, a driving unit 9 and a control unit 10.

[0021] The conveyor belt 100 is arranged horizontally and is located below the workbench 3. During the docking process of the steel plates, the conveyor belt 100 will transport the two steel plates to the bottom of the workbench 3; the distance between the workbench 3 and the conveyor belt 100 is greater than the thickness of the steel plate, so that the workbench 3 is not likely to affect the conveying of the steel plate by the conveyor belt 100.

[0022] like Figure 2 As shown, the positioning unit 4 includes two positioning plates 41, which are located between the two workbenches 3 and arranged in sequence along the conveying direction of the conveyor belt 100. After the steel plates are loaded, the two positioning plates 41 will be located between the two steel plates, and each steel plate will contact the corresponding positioning plate 41, so that the two steel plates maintain a specified distance so that the two steel plates can be docked in the subsequent process.

[0023] like Figure 3 and Figure 4 As shown, both ends of the positioning plate 41 are equipped with vertically arranged limit rods 42, and the limit rods 42 are slidably penetrated in the turning frame 2 in the vertical direction, thereby realizing a sliding connection between the positioning plate 41 and the turning frame 2, so that the positioning plate 41 can only perform lifting and lowering movements to ensure the stability of the positioning plate 41 when positioning the steel plate; a vertically arranged spring 43 is wound around the limit rod 42, one end of the spring 43 is fixedly connected to the positioning plate 41, and the other end of the spring 43 is fixedly connected to the turning frame 2. When the spring 43 is in a natural state, the distance between the positioning plate 41 and the conveyor belt 100 will be smaller than the thickness of the steel plate, and the positioning plate 41 will be in contact with the end of the steel plate to achieve positioning of the steel plate.

[0024] like Figure 4 and Figure 5 As shown, a clamping unit 5 is provided on the workbench 3, and the clamping unit 5 includes two first hydraulic cylinders 51 installed on the workbench 3, and a clamping plate 52 is installed on the piston rod of the two first hydraulic cylinders 51. A pressure plate 53 is integrally formed on the two clamping plates 52, and an inclined guide plate 54 is integrally formed on the opposite side of the two pressure plates 53.

[0025] When the steel plate is positioned, the first hydraulic cylinder 51 will drive the clamping plate 52 to move, so that the two plates are close to each other, and the inclined surface of the guide plate 54 will contact the steel plate, so that the steel plate is lifted up and moves to between the pressure plate 53 and the workbench 3. After that, the two clamping plates 52 will clamp the steel plate together, and the pressure plate 53 will press the steel plate on the workbench 3 to ensure the stability of the steel plate during the subsequent docking process.

[0026] like Figure 3 and Figure 4 As shown, it is worth noting that four groups of first guide rails 31 are installed on the workbench 3, each splint 52 corresponds to two groups of first guide rails 31, and the splint 52 slides in conjunction with the corresponding two groups of first guide rails 31 to improve the stability of the splint 52 during movement.

[0027] Two extension plates 44 are welded to the positioning plate 41, located on the movement trajectory of the clamping plates 52. The two clamping plates 52 are each provided with an inclined pressure surface 521 on opposite sides. When the first hydraulic cylinder 51 drives the two clamping plates 52 to move, so that the two clamping plates 52 are clamped together on the steel plate, the clamping plates 52 will slide and press the extension plates 44 via the pressure surfaces 521. The extension plates 44 will then drive the positioning plate 41 to move, causing it to move away from the corresponding steel plate end on the workbench 3. At this time, the spring 43 will deform, and the positioning plate 41 will no longer prevent the two steel plates from moving and docking.

[0028] like Figure 1 and Figure 3 As shown, the control unit 10 includes a controller 101 , an infrared sensor 45 is installed on the positioning plate 41 located at the front side of the conveying direction of the conveyor belt 100 , and the infrared sensor 45 and the first hydraulic cylinder 51 are both coupled to the controller 101 .

[0029] When the first steel plate used for material preparation passes under the infrared sensor 45, the spring 43 will return to its natural state and cause the positioning plate 41 to descend. The first steel plate used for material preparation will abut against the positioning plate 41 located in the front side of the conveying direction of the conveyor belt 100, and the second steel plate used for material preparation will abut against the positioning plate 41 located in the rear side of the conveying direction of the conveyor belt 100. At this time, the infrared sensor 45 will not detect the first steel plate used for material preparation, and the infrared sensor 45 will transmit a clamping signal to the controller 101. The controller 101 will control the operation of the first hydraulic cylinder 51, and the first hydraulic cylinder 51 will drive the clamping plate 52 to move, so that the first steel plate and the second steel plate used for material preparation are clamped and fixed.

[0030] like Figure 3 As shown, the driving unit 9 includes two second hydraulic cylinders 91 mounted on the turning frame 2. The piston rods of the two second hydraulic cylinders 91 extend horizontally and are respectively connected to the corresponding workbench 3. When the steel plates are clamped and fixed, the second hydraulic cylinders 91 will drive the workbench 3 to move, bringing the two workbench 3 closer together until the two steel plates are docked.

[0031] It is worth noting that four sets of second guide rails 21 are installed on the turning frame 2, each workbench 3 corresponds to two sets of second guide rails 21, and the workbench 3 slides in conjunction with the corresponding two sets of second guide rails 21 to improve the stability of the workbench 3 during movement.

[0032] like Figure 5 As shown, a first contact sensor 55 is mounted on the clamping plate 52. The first contact sensor 55 and the second hydraulic cylinder 91 are both coupled to the controller 101. When the two clamping plates 52 are clamped together on the steel plate, the first contact sensor 55 will contact the steel plate and transmit a docking signal to the controller 101. The controller 101 will control the operation of the two second hydraulic cylinders 91, so that the two steel plates on the workbench 3 are automatically docked.

[0033] like Figure 1 and Figure 6 As shown, the welding unit 6 includes a linear module 61, on which a welding gun 62 is slidably fitted. The linear module 61 can drive the welding gun 62 to move along the length direction of the joint between the two steel plates, so that the welding gun 62 can weld the joint between the two steel plates.

[0034] like Figure 3 As shown, an infrared transmitter 32 is installed on one of the workbenches 3, and an infrared receiver 33 is installed on the other workbench 3. The linear module 61, welding gun 62, infrared transmitter 32, and infrared receiver 33 are all coupled to the controller 101. When the two clamps 52 are clamped together on the steel plate, the controller 101 will receive a docking signal and control the two second hydraulic cylinders 91, the infrared transmitter 32, and the infrared receiver 33 to operate. When the two steel plates on the workbench 3 are docked, the infrared receiver 33 will receive the infrared light emitted by the infrared transmitter 32. At this time, the infrared receiver 33 will transmit an initial welding signal to the controller 101, and the controller 101 will control the linear module 61 and welding gun 62 to operate. The linear module 61 will drive the welding gun 62 to complete the welding at the front of the two steel plates.

[0035] The turning unit 8 includes two groups of reduction motors 81 installed at both ends of the lifting frame 1. The output shafts of the two reduction motors 81 extend horizontally and are connected to the same turning frame 2, thereby driving the turning frame 2 to rotate.

[0036] It is worth noting that both ends of the lifting frame 1 are installed with annular third guide rails 11, and both ends of the turnover frame 2 are slidably matched with the two third guide rails 11 to improve the stability of the turnover frame 2 during the turnover process.

[0037] like Figure 2 As shown, the lifting unit 7 includes a base 71, and third hydraulic cylinders 72 are installed at the four corners of the base 71. The piston rods of the four third hydraulic cylinders 72 extend in the vertical direction and are connected to the same lifting frame 1 to ensure the stability of the lifting frame 1 during the lifting process.

[0038] like Figure 6As shown, a second contact sensor 63 is installed at one end of the linear module 61. The second contact sensor 63, the reduction motor 81, and the third hydraulic cylinder 72 are all coupled to the controller 101. When the linear module 61 drives the welding gun 62 to complete the welding of the front butt joint of the two steel plates, the welding gun 62 will abut against the second contact sensor 63, and the second contact sensor 63 will transmit a flip signal to the controller 101. The controller 101 will control the reduction motor 81 and the third hydraulic cylinder 72 to operate. The third hydraulic cylinder 72 will drive the lifting seat to first rise and then lower and reset. The reduction motor 81 will drive the flip frame 2 to flip 180 degrees, so that the butt joint of the back sides of the two steel plates moves to the motion trajectory of the welding gun 62, and the steel plates will not collide with the conveyor belt 100 during the flipping process.

[0039] A third contact sensor 73 is mounted on the base 71 and is coupled to the controller 101. When the butt joint of the two steel plates' back surfaces moves onto the trajectory of the welding torch 62, the lift base descends an odd number of times to reset and contact the third contact sensor 73. This sends a secondary welding signal to the controller 101, which in turn controls the linear module 61 and welding torch 62. The linear module 61 drives the welding torch 62 to complete the welding of the two steel plates' back-to-back joint.

[0040] The other end of the linear module 61 is equipped with a fourth contact sensor 64, which is coupled to the controller 101. When the linear module 61 drives the welding gun 62 to complete the welding of the back-facing joint of the two steel plates, the welding gun 62 will contact the fourth contact sensor 64, and the fourth contact sensor 64 will send a blanking signal to the controller 101. The controller 101 will control the speed reduction motor 81 and the third hydraulic cylinder 72 to operate. The third hydraulic cylinder 72 will drive the lifting seat to rise first and then drop and reset. The speed reduction motor 81 will drive the flip frame 2 to flip 180 degrees, so that the front-facing joint of the two steel plates moves to the motion trajectory of the welding gun 62; at this time, the lifting seat will drop and reset an even number of times and contact At the third contact sensor 73, the third contact sensor 73 will transmit a blanking signal to the controller 101, and the controller 101 will control the operation of the first hydraulic cylinder 51, the second hydraulic cylinder 91 and the conveyor belt 100. The first hydraulic cylinder 51 will drive the clamping plate 52 to move and reset and separate from the steel plate. The steel plate that has been docked will fall down onto the conveyor belt 100 due to its own gravity. The second hydraulic cylinder 91 will drive the workbench 3 to move and reset, so that the two workbenches 3 are separated for subsequent docking of the steel plates. The conveyor belt 100 will transport the docked steel plates for blanking.

[0041] When the conveyor belt 100 transports the steel plates that have been docked, the front end of the first steel plate used for preparation will be in contact with the tail end of the steel plate that has been docked, and the second steel plate used for preparation will be located at the tail end of the first steel plate used for preparation, and the distance between the second steel plate used for preparation and the first steel plate used for preparation will be smaller than the distance between the two positioning plates 41; in the process of the conveyor belt 100 transporting the steel plates, the two steel plates that have been docked and the first steel plate used for preparation will pass under the positioning plates 41 in succession, and when the infrared sensor 45 can no longer detect the first steel plate used for preparation, the infrared sensor 45 will transmit a clamping signal to the controller 101, and the controller 101 will control the first hydraulic cylinder 51 to operate and control the conveyor belt 100 to close, and the first hydraulic cylinder 51 will drive the clamping plate 52 to move, so that the first steel plate and the second steel plate used for preparation are clamped and fixed, and the docking of subsequent steel plates has begun at this time.

[0042] The implementation principle of the steel structure docking device of the embodiment of the present application is: during the docking process of the steel plates, the conveyor belt 100 will transport the two steel plates for loading, the front end of the first steel plate used for preparation will be in contact with the tail of the steel plate that has been docked, the second steel plate used for preparation will be located at the tail of the first steel plate used for preparation, and the distance between the second steel plate used for preparation and the first steel plate used for preparation will be smaller than the distance between the two positioning plates 41, and the two steel plates that have been docked and the first steel plate used for preparation will pass under the positioning plate 41 one after another.

[0043] When the infrared sensor 45 can no longer detect the first steel plate used for material preparation, the spring 43 will return to its natural state and cause the positioning plate 41 to drop and reset. The first steel plate used for material preparation will contact the positioning plate 41 located in front of the conveying direction of the conveyor belt 100, and the second steel plate used for material preparation will contact the positioning plate 41 located in the rear of the conveying direction of the conveyor belt 100. The infrared sensor 45 will send a clamping signal to the controller 101, and the controller 101 will control the operation of the first hydraulic cylinder 51. The first hydraulic cylinder 51 will drive the clamping plate 52 to move so that the two plates are close to each other. The inclined surface of the guide plate 54 will contact the steel plate, so that the steel plate is lifted up and moves between the pressing plate 53 and the workbench 3. After that, the two clamping plates 52 will clamp the steel plate together, and the pressing plate 53 will press the steel plate on the workbench 3.

[0044] Then the first contact sensor 55 will contact the steel plate and transmit a docking signal to the controller 101. The controller 101 will control the two second hydraulic cylinders 91, the infrared transmitter 32 and the infrared receiver 33 to operate. The second hydraulic cylinder 91 will drive the workbench 3 to move, so that the two workbenches 3 are close to each other, and the two steel plates on the workbench 3 will automatically complete the docking.

[0045] Then the infrared receiver 33 will receive the infrared rays emitted by the infrared transmitter 32. At this time, the infrared receiver 33 will send the initial welding signal to the controller 101. The controller 101 will control the linear module 61 and the welding gun 62 to operate. The linear module 61 can drive the welding gun 62 to move along the length direction of the joint between the two steel plates. The welding gun 62 will complete the welding of the front joint of the two steel plates.

[0046] Afterwards, the welding gun 62 will contact the second contact sensor 63, and the second contact sensor 63 will send a flip signal to the controller 101. The controller 101 will control the reduction motor 81 and the third hydraulic cylinder 72 to operate. The third hydraulic cylinder 72 will drive the lifting seat to rise first and then fall back to reset. The reduction motor 81 will drive the flip frame 2 to flip 180°, so that the joint on the back of the two steel plates moves to the movement trajectory of the welding gun 62.

[0047] Then the lifting seat will drop an odd number of times to reset and contact the third contact sensor 73. The third contact sensor 73 will send a secondary welding signal to the controller 101. The controller 101 will control the linear module 61 and the welding gun 62 to operate. The linear module 61 will drive the welding gun 62 to complete the welding of the back joints of the two steel plates.

[0048] Subsequently, the welding gun 62 will contact the fourth contact sensor 64, and the fourth contact sensor 64 will transmit a blanking signal to the controller 101. The controller 101 will control the reduction motor 81 and the third hydraulic cylinder 72 to operate. The third hydraulic cylinder 72 will drive the lifting seat to rise first and then drop and reset. The reduction motor 81 will drive the turning frame 2 to flip 180°, so that the joint of the two steel plates on the front side moves to the motion trajectory of the welding gun 62; at this time, the lifting seat will drop and reset an even number of times and contact the third contact sensor 73. The third contact sensor 73 will transmit a blanking signal to the controller 101, and the controller 101 will control the first hydraulic cylinder 51, the second hydraulic cylinder 91 and the conveyor belt 100 to operate. The first hydraulic cylinder 51 will drive the splint 52 to move and reset and separate from the steel plate. The steel plate that has been docked will fall down onto the conveyor belt 100 due to its own gravity. The second hydraulic cylinder 91 will drive the workbench 3 to move and reset, and the conveyor belt 100 will transport the docked steel plate for unloading.

[0049] To sum up, workers only need to prepare the steel plates on the conveyor belt 100, and the present application can automatically complete the positioning, loading, clamping, docking, double-sided welding and unloading of the steel plates, and make the single-sided welded steel plates remain stable during the flipping process, thereby improving the welding efficiency and welding quality of the steel plates.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. Steel structure docking device, characterized by: The invention comprises a lifting frame (1), a turning frame (2), two work tables (3), a conveyor belt (100), a welding unit (6) and a lifting unit (7), wherein the lifting unit (7) is used to drive the lifting frame (1) to move up and down, the lifting frame (1) is provided with a turning unit (8) for driving the turning frame (2) to turn up and down, the turning frame (2) is provided with a driving unit (9) for driving the two work tables (3) to move closer to or away from each other, the work tables (3) are provided with a clamping unit (5) for clamping steel plates, and the welding unit (6) is used to weld the steel plates butted on the two work tables (3); The conveyor belt (100) is located below the workbench (3). When the clamping unit (5) is turned over between the workbench (3) and the conveyor belt (100), the steel plate separated from the clamping unit (5) will fall downward onto the conveyor belt (100), and the clamping unit (5) can move to clamp the steel plate on the conveyor belt (100).

2. The steel structure docking device according to claim 1, characterized in that: The clamping unit (5) comprises two first hydraulic cylinders (51) arranged on the workbench (3), and the piston rods of the two first hydraulic cylinders (51) are both provided with clamping plates (52), and the two clamping plates (52) are used to clamp the steel plate together; The two clamping plates (52) are each provided with a pressing plate (53) for pressing the steel plate onto the workbench (3), and the two pressing plates (53) are each provided with an inclined guide plate (54) on opposite sides thereof; When the clamping unit (5) is turned over to between the workbench (3) and the conveyor belt (100), the two guide plates (54) will lift the steel plate upwards as they approach each other, causing the steel plate to move between the pressing plate (53) and the workbench (3).

3. The steel structure docking device according to claim 2, characterized in that: The apparatus further comprises a positioning unit (4), wherein the positioning unit (4) comprises two positioning plates (41) connected to the turning frame (2) in a sliding manner in a vertical direction, and the two positioning plates (41) are located between the two workbenches (3) and are respectively provided for contact with steel plates on the corresponding workbenches (3).

4. The steel structure docking device according to claim 3, characterized in that: The positioning plate (41) is connected to the turning frame (2) via a vertically arranged spring (43), and an extension plate (44) is provided on the positioning plate (41) and is located on the movement track of the clamping plate (52); The clamping plates (52) are provided with an inclined pressing surface (521). When the two clamping plates (52) approach each other, the pressing surface (521) presses the extension plate (44), so that the positioning plate (41) moves away from the steel plate on the corresponding workbench (3). At this time, the spring (43) will be deformed.

5. The steel structure docking device according to claim 4, characterized in that: The driving unit (9) comprises two second hydraulic cylinders (91) provided on the turning frame (2), and the piston rods of the two second hydraulic cylinders (91) are respectively connected to corresponding workbenches (3); The apparatus further comprises a control unit (10), the control unit (10) comprising a controller (101) and a first contact sensor (55) provided on the clamping plate (52), the first contact sensor (55) and the second hydraulic cylinder (91) both being coupled to the controller (101); When the two clamping plates (52) are clamped together on the steel plate, the first contact sensor (55) will contact the steel plate and transmit a docking signal to the controller (101). The controller (101) will control the two second hydraulic cylinders (91) to operate, so that the two steel plates on the workbench (3) are docked.

6. The steel structure docking device according to claim 5, characterized in that: One of the workbenches (3) is provided with an infrared transmitter (32), and the other workbench (3) is provided with an infrared receiver (33); The welding unit (6) includes a linear module (61), a welding gun (62) is provided on the linear module (61), and the linear module (61), the welding gun (62), the infrared transmitter (32) and the infrared receiver (33) are all coupled to the controller (101); After receiving the docking signal, the controller (101) controls the infrared transmitter (32) and the infrared receiver (33) to operate. When the two steel plates on the workbench (3) are docked, the infrared receiver (33) receives the infrared rays emitted by the infrared transmitter (32) and transmits the initial welding signal to the controller (101). The controller (101) controls the linear module (61) and the welding gun (62) to operate. The linear module (61) drives the welding gun (62) to complete the welding of the two steel plates at the front docking position.

7. The steel structure docking device according to claim 6, characterized in that: The turning unit (8) includes a reduction motor (81) provided on the lifting frame (1), wherein the output shaft of the reduction motor (81) extends in a horizontal direction and is connected to the turning frame (2); The lifting unit (7) comprises a base (71), a third hydraulic cylinder (72) is provided on the base (71), and a piston rod of the third hydraulic cylinder (72) extends in a vertical direction and is connected to the lifting frame (1); A second contact sensor (63) is provided at one end of the linear module (61), and the second contact sensor (63), the reduction motor (81) and the third hydraulic cylinder (72) are all coupled to the controller (101); When the linear module (61) drives the welding gun (62) to complete the welding of the front joint of the two steel plates, the welding gun (62) will contact the second contact sensor (63), and the second contact sensor (63) will send a flip signal to the controller (101). The controller (101) will control the reduction motor (81) and the third hydraulic cylinder (72) to operate. The third hydraulic cylinder (72) will drive the lifting seat to rise first and then fall back to reset. The reduction motor (81) will drive the flip frame (2) to flip 180 degrees, so that the joint of the back sides of the two steel plates moves to the movement trajectory of the welding gun (62).

8. The steel structure docking device according to claim 7, characterized in that: A third contact sensor (73) is provided on the base (71), and the third contact sensor (73) is coupled to the controller (101); After the lifting seat is lowered and reset, it will contact the third contact sensor (73), and the third contact sensor (73) will transmit a secondary welding signal to the controller (101). The controller (101) will control the linear module (61) and the welding gun (62) to operate, and the linear module (61) will drive the welding gun (62) to complete the welding of the back-to-back joints of the two steel plates.

9. The steel structure docking device according to claim 8, characterized in that: A fourth contact sensor (64) is provided at the other end of the linear module (61), and the fourth contact sensor (64) is coupled to the controller (101); When the linear module (61) drives the welding gun (62) to complete the welding of the back-facing joint of the two steel plates, the welding gun (62) will contact the fourth contact sensor (64), and the fourth contact sensor (64) will send a blanking signal to the controller (101). The controller (101) will control the reduction motor (81) and the third hydraulic cylinder (72) to operate. The third hydraulic cylinder (72) will drive the lifting seat to rise first and then fall back to reset. The reduction motor (81) will drive the flip frame (2) to flip 180 degrees, so that the front-facing joint of the two steel plates moves to the movement trajectory of the welding gun (62). The third contact sensor (73) will transmit a secondary welding signal to the controller (101) when it is touched an odd number of times, and will transmit a blanking signal to the controller (101) when it is touched an even number of times. The controller (101) will control the first hydraulic cylinder (51), the second hydraulic cylinder (91) and the conveyor belt (100) to operate. The first hydraulic cylinder (51) will drive the clamping plate (52) to move and reset and separate from the steel plate. The second hydraulic cylinder (91) will drive the workbench (3) to move and reset, so that the two workbench (3) are separated, and the conveyor belt (100) will transport the steel plate for blanking.

10. The steel structure docking device according to claim 9, characterized in that: When the steel plate clamped by the clamping unit (5) is located between the workbench (3) and the conveyor belt (100), the distance between the steel plate and the conveyor belt (100) will be smaller than the thickness of the steel plate. After the steel plate is separated from the positioning plate (41), the spring (43) will return to its natural state and cause the positioning plate (41) to move back to its original position. At this time, the distance between the positioning plate (41) and the conveyor belt (100) will be smaller than the thickness of the steel plate. Two positioning plates (41) are arranged in sequence along the conveying direction of the conveyor belt (100); an infrared sensor (45) is provided on the positioning plate (41) located at the front side of the conveying direction of the conveyor belt (100); the infrared sensor (45) and the first hydraulic cylinder (51) are both coupled to the controller (101); When the conveyor belt (100) transports the butted steel plates for unloading, the front end of the first steel plate used for preparation will abut against the rear end of the butted steel plate, and the distance between the second steel plate used for preparation and the first steel plate used for preparation will be smaller than the distance between the two positioning plates (41); When the infrared sensor (45) fails to detect the first steel plate for material preparation, the first steel plate for material preparation will contact the positioning plate (41) located at the front side of the conveying direction of the conveyor belt (100), and the second steel plate for material preparation will contact the positioning plate (41) located at the rear side of the conveying direction of the conveyor belt (100). The infrared sensor (45) will transmit a clamping signal to the controller (101), and the controller (101) will control the first hydraulic cylinder (51) to operate. The first hydraulic cylinder (51) will drive the clamping plate (52) to move, so that the first steel plate for material preparation and the second steel plate are clamped and fixed.

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