Automatic production line for H-shaped steel

Abstract

The application discloses a kind of H-shaped steel automatic production line, the main frame is sequentially installed with front processing area and rear processing area from front to back, and upper part is installed with upper processing area, the front processing area is equipped with front spot welding part and rear spot welding part, and middle part is equipped with more than three groups of processing part, the rear processing area front part is equipped with limiting part, and rear part is equipped with turnover part, the front spot welding part and rear spot welding part all include No.1 support frame, two No.1 support frames are respectively fixed in the front part and middle part of main frame.The application can automatically feed, turn over and automatically align the wing plate and web, and carry out horizontal quick assembly of H-shaped steel in the mode of spot welding, automatically select "horizontal angle welding" or "boat-shaped welding" welding mode according to the thickness of web, automatically track weld by laser weld seam tracker during welding, and the semi-finished H-shaped steel can be turned over in welding sequence, and hydraulic power is used after turnover welding is completed.

Description

Technical Field

[0001] This invention relates to the field of H-beam production, and more particularly to an automated H-beam production line. Background Technology

[0002] H-beams are a type of profile with an "H"-shaped cross-section, made by cutting steel plates into fixed-size flanges and webs, assembling and welding them, and finally straightening them. Current H-beam production lines, with their low levels of automation, suffer from high labor intensity, poor weld formation, cumbersome workpiece transfer, high risks associated with crane handling and overturning, and heavy reliance on operators due to the frequent manual labor involved. Even in more automated H-beam production lines, one flange is often welded to the web first, followed by the other flange, which doesn't significantly improve welding efficiency. This severely hinders the trend of steel structure manufacturers towards mass production, automation, and intelligent manufacturing, highlighting the shortcomings of these production lines. Summary of the Invention

[0003] The purpose of this invention is to provide an automated H-beam production line to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automated production line for H-beams includes a main frame, a front processing area, a rear processing area, an upper processing area, a front spot welding section, a rear spot welding section, a processing section, a limiting section, a tilting section, a first support frame, a first left motor, a first right motor, a first upper lifting frame, a first lower lifting frame, a first servo motor, a first gear, a first left slider, a first right slider, a first rack, and a spot welding gun. The main frame has the front and rear processing areas installed sequentially from front to back, with the upper processing area installed at the top. The front processing area has a front spot welding section and a rear spot welding section, and has three or more processing sections in the middle. The rear processing area has a limiting section at the front and a tilting section at the rear. Both the front and rear spot welding sections include a first support frame, and two first support frames are respectively fixed... At the front and middle of the main frame, vertical left and right motors are fixed to the top of the two No. 1 support frames from left to right, and horizontal upper and lower lifting frames are slidably connected from top to bottom. Vertical servo motors are fixed to the middle of the upper and lower lifting frames, and gears are coaxially fixed to the shafts of each servo motor. Horizontal left sliders are slidably connected to the left and right sides of the upper and lower lifting frames, and horizontal right sliders are slidably connected to the right and left sides of the upper and lower lifting frames, respectively. Horizontal racks are fixed to the left and right sliders, and spot welding guns are installed on the left and right sliders, respectively.

[0006] Based on the above technical solution, the rotating shafts of the first left motor and the first right motor are interlocked with the upper part of the first support frame, and the rotating shafts of the first left motor and the first right motor are rotatably connected to the bottom of the first support frame. The rotating shaft of the first left motor is threadedly connected to the first lower lifting frame and interlocked with the first upper lifting frame. The rotating shaft of the first right motor is threadedly connected to the first upper lifting frame and interlocked with the first lower lifting frame. The first servo motor is fixed to the back-to-back end faces of the first upper and first lower lifting frames. The first rack of the first left slider and the first rack of the first right slider are centrally symmetrically arranged relative to the first servo motor and mesh with the first gear. The head of the spot welding gun of the first left slider and the first right slider... The head of the spot welding torch is positioned outward relative to the No. 1 servo motor. The head of the spot welding torch is located in the adjacent space of the No. 1 upper lifting frame and the No. 1 lower lifting frame. When the No. 1 left motor is powered on, it can drive the No. 1 lower lifting frame to slide up and down along the No. 1 support frame. When the No. 1 right motor is powered on, it can drive the No. 1 upper lifting frame to slide up and down along the No. 1 support frame. When the No. 1 servo motor is powered on, it can drive the No. 1 left slider and the No. 1 right slider to move closer and further apart through the No. 1 gear and the No. 1 rack. The No. 1 upper lifting frame and the No. 1 lower lifting frame can measure the horizontal distance between the No. 1 left slider and the No. 1 right slider through the distance measuring sensor, and can also measure the vertical distance between each other and between the No. 1 support frame through the distance measuring sensor.

[0007] Based on the above technical solution, the processing part includes a second support base, a second left sliding base, a second right sliding base, a second push base, a second connecting rod, a second clamping plate, a support bar, a second main hydraulic cylinder, a second front idler frame, a second rear idler frame, a second main idler, a second auxiliary idler, a second auxiliary hydraulic cylinder, and a straightening part. The second support base is fixed to the front of the main frame. The second left sliding base and the second right sliding base are slidably connected from left to right to the front of the second support base, and a horizontal second push base is slidably connected to the front middle section. The second left sliding base and the second right sliding base are respectively hinged to a horizontal second connecting rod. The rear part of the second connecting rod is hinged to the second push base. The second left sliding base and the second right sliding base... A horizontal No. 2 clamping plate is hinged to each of the two sections. A horizontal support bar is fixed in the front-rear direction near the front middle of the No. 2 support seat at the top of the No. 2 clamping plate. A No. 2 main hydraulic cylinder is hinged to the middle of the No. 2 left sliding seat and the No. 2 right sliding seat. The piston rod of the No. 2 main hydraulic cylinder is hinged to the No. 2 clamping plate directly above it. A horizontal No. 2 front idler roller frame is hinged to the lower front part of the No. 2 clamping plate, and a horizontal No. 2 rear idler roller frame is hinged to the lower rear part. A horizontal No. 2 main idler roller and a No. 2 auxiliary idler roller are rotatably connected to the No. 2 front idler roller frame and the No. 2 auxiliary idler roller frame, respectively. A No. 2 auxiliary hydraulic cylinder is hinged to the No. 2 auxiliary hydraulic cylinder. The piston rod of the No. 2 auxiliary hydraulic cylinder is hinged to the No. 2 front idler roller frame. A straightening part is installed on the No. 2 support seat.

[0008] Based on the above technical solution, a horizontal second main electric push rod is fixed to the rear top of the second support base. The front end of the second main electric push rod is fixed to the rear end of the second push base. A horizontal second transmission shaft is rotatably connected to the lower front and lower rear parts of the second clamping plate. A second main gear is coaxially fixed to each of the second transmission shafts. A second driven gear is coaxially fixed to each of the second main rollers. A horizontal second front reduction motor is fixed to the middle bottom of the second clamping plate. The rotating shaft of the second front reduction motor is synchronously driven by the second transmission shaft at the front and rear parts through synchronous belts and synchronous pulleys. A vertical... The system includes a second front support frame and a second front hydraulic cylinder. The second front support frame is slidably connected to a vertical second front lifting frame. The front and rear parts of the second front lifting frame are rotatably connected to horizontal second front rollers, and the upper bottom end is fixed to the top of the piston rod of the second front hydraulic cylinder. When the piston rod of the second front hydraulic cylinder extends or retracts, it can drive the second front lifting frame to slide up and down along the second front support frame. The second left sliding seat and the second right sliding seat can measure the horizontal distance between each other through a distance measuring sensor. The second clamping plate can measure its posture through an angle sensor. The second front roller frame and the second rear roller frame can measure their posture through an angle sensor.

[0009] Based on the above technical solution, the correction part includes a second rear support frame, a second rear lifting frame, a second upper lifting frame, a second lower lifting frame, a second rear idler roller, a second rear reduction motor, a second rear hydraulic cylinder, a second lower hydraulic cylinder, a second upper hydraulic cylinder, and a second compression idler roller. A vertical second rear support frame is fixed to the top rear part of the second support base. A horizontal second rear lifting frame is slidably connected to the front part of the second rear support frame, and a horizontal second upper lifting frame and a second lower lifting frame are slidably connected to the rear part from top to bottom. A horizontal second rear idler roller is rotatably connected to both the front and rear parts of the second rear lifting frame, and a horizontal idler roller is fixed to the left side. The second rear reduction motor has its rotating shaft meshing with two second rear rollers via spur gears. A second rear hydraulic cylinder is hinged to the rear of the second rear support frame, and the piston rod of the second rear hydraulic cylinder is hinged to the second rear lifting frame. A second lower hydraulic cylinder is hinged to the rear of the second support base, and the piston rod of the second lower hydraulic cylinder is hinged to the second lower lifting frame. A second upper hydraulic cylinder is hinged to the upper part of the second rear support frame, and the piston rod of the second upper hydraulic cylinder is hinged to the second upper lifting frame. Two horizontal second extrusion rollers are rotatably connected to adjacent parts of the second lower lifting frame and the second upper lifting frame.

[0010] Based on the above technical solution, when the No. 2 main electric push rod is energized and extends, it can drive the No. 2 push seat to slide back and forth. When the No. 2 push seat slides back and forth, it can drive the No. 2 left sliding seat and the No. 2 right sliding seat to slide left and right along the No. 2 support seat, moving away from and closer to each other, through the No. 2 connecting rod. When the No. 2 main hydraulic cylinder extends and retracts its piston rod, it can drive the No. 2 clamping plate to swing left and right. When the No. 2 auxiliary hydraulic cylinder extends and retracts its piston rod, it can drive the No. 2 front roller frame and the No. 2 rear roller frame to swing back and forth, opening and closing. When the No. 2 front roller frame and the No. 2 rear roller frame swing back and forth, it can cause the No. 2 to... When the gear meshes with the second main gear, the second front idler roller frame and the second rear idler roller frame swing back and forth in a retracting motion, which can disengage the second driven gear from the second main gear. When the second driven gear meshes with the second main gear, the outer circumferential wall of the second main idler roller protrudes from the top surface of the second clamping plate. When the second driven gear disengages from the second main gear, the outer circumferential wall of the second auxiliary idler roller can protrude from the top surface of the second clamping plate. The outer circumferential walls of the second main idler roller and the second auxiliary idler roller can only alternately protrude from the top surface of the second clamping plate. The outer circumferential walls of the second main idler roller and the second auxiliary idler roller can both be located below the top surface of the second clamping plate.

[0011] Based on the above technical solution, the rotational speed of the second rear idler roller is the same. When the piston rod of the second rear hydraulic cylinder extends and retracts, it can drive the second rear lifting frame to slide up and down along the second rear support frame. The second rear lifting frame can measure the vertical distance between the bottom of the second rear support frame below it through a distance measuring sensor. When the piston rod of the second lower hydraulic cylinder extends and retracts, it can drive the second lower lifting frame to slide up and down along the second rear support frame. The second lower lifting frame can measure the vertical distance between the bottom of the second rear support frame below it through a distance measuring sensor. When the piston rod of the second upper hydraulic cylinder extends and retracts, it can drive the second upper lifting frame to slide up and down along the second rear support frame. The second upper lifting frame can measure the vertical distance between the top of the second rear support frame above it through a distance measuring sensor. Multiple sets of vertical correction distance measuring sensors are fixed at the top of the inner wall of the second rear support frame. The correction distance measuring sensors can measure the vertical distance between the obstructions below it.

[0012] Based on the above technical solution, the limiting part includes a No. 3 support frame, a No. 3 lifting frame, a No. 3 hydraulic cylinder, a No. 3 idler roller, a No. 3 baffle, a No. 3 upper rack, a No. 3 transmission shaft, a No. 3 large gear, a No. 3 small gear, a No. 3 electric push rod, and a No. 3 lower rack. A vertical No. 3 support frame is fixed to the rear of the main frame. A horizontal No. 3 lifting frame is slidably connected to the front of the No. 3 support frame, and a vertical No. 3 hydraulic cylinder is fixed to the top of the front part. A horizontal No. 3 idler roller is rotatably connected to the No. 3 lifting frame. Two vertical No. 3 baffles are slidably connected to the rear of the No. 3 support frame. A horizontal No. 3 upper rack is fixed to the rear end of each of the two No. 3 baffles. A vertical No. 3 transmission shaft is rotatably connected to the left and right sides of the No. 3 support frame. The upper part of the No. 3 drive shaft is coaxially fixed with a No. 3 large gear, and the bottom part is coaxially fixed with a No. 3 small gear. The two No. 3 large gears mesh with the two No. 3 upper racks. The top left and right parts of the No. 3 support frame are each fixed with a horizontal No. 3 electric push rod. The push rod ends of the two No. 3 electric push rods are respectively fixed with a horizontal No. 3 lower rack. The No. 3 lower rack meshes with the No. 3 small gear. When the piston rod of the No. 3 hydraulic cylinder extends and retracts, it can drive the No. 3 lifting frame to slide up and down along the No. 3 electric push rod. When the two No. 3 electric push rods extend and retract, through the No. 3 lower rack, No. 3 small gear, No. 3 drive shaft, No. 3 large gear, and No. 3 upper rack, they can drive the two No. 3 baffles to slide left and right away from each other and left and right closer to each other along the No. 3 support frame.

[0013] Based on the above technical solution, the tilting part includes a No. 4 support base, a No. 4 rack, a No. 4 lifting frame, a No. 4 main hydraulic cylinder, a No. 4 driven roller, a No. 4 main roller, a No. 4 main reduction motor, a No. 4 sliding seat, a No. 4 servo motor, a No. 4 gear, and a tilting action part. A horizontal No. 4 support base is fixed to the rear of the main frame, and horizontal No. 4 racks are fixed to the front and rear of the top end. A vertical No. 4 lifting frame is slidably connected to the front, middle, and rear of the No. 4 support base. A No. 4 main hydraulic cylinder is hinged to the front, middle, and rear of the No. 4 support base. The piston rod of the No. 4 main hydraulic cylinder is hinged to the No. 4 lifting frame, and when the piston rod is extended or retracted, it can drive the No. 4 lifting frame to slide up and down along the No. 4 support base. Each of the last two parts is rotatably connected to a horizontal No. 4 slave roller, and the middle part is rotatably connected to a horizontal No. 4 main roller. A horizontal No. 4 main reduction motor is fixed at the middle of the right end of the No. 4 lifting frame. The shaft of the No. 4 main reduction motor is coaxially fixed with the right part of the No. 4 main roller. The No. 4 slave rollers of the front and rear parts of the No. 4 lifting frame and the No. 4 main roller in the middle part achieve synchronous rotation through the meshing of the synchronous belt and the synchronous pulley. The No. 4 support base is slidably connected to the left and right sides of the front and rear parts of the No. 4 support base. A horizontal No. 4 servo motor is fixed to each of the two No. 4 servo motors. The shafts of the two No. 4 servo motors are coaxially fixed with No. 4 gears. The two No. 4 gears mesh with No. 4 racks. The two No. 4 servo motors are also equipped with a flipping action part.

[0014] Based on the above technical solution, the flipping action part includes a No. 4 left flipping frame, a No. 4 left hydraulic cylinder, a No. 4 right hydraulic cylinder, a No. 4 right flipping frame, a No. 4 auxiliary roller, a No. 4 left roller, a No. 4 left reduction motor, a No. 4 right roller, and a No. 4 right reduction motor. The front parts of the two No. 4 sliding seats are respectively hinged to horizontal No. 4 left flipping frames, and vertical No. 4 left and right hydraulic cylinders are respectively hinged to them. The right parts of the two No. 4 left flipping frames are respectively hinged to No. 4 right flipping frames. Horizontal No. 4 auxiliary rollers are rotatably connected to the front and rear parts of each of the No. 4 left and right flipping frames. Horizontal No. 4 left rollers are rotatably connected to the front and rear parts of each of the No. 4 left flipping frames, and No. 4 left reduction motors are fixed to the front and rear parts of the left end. The rotating shaft is fixed coaxially with the left end of the fourth left idler roller. The front and rear parts of the fourth right tilting frame are each rotatably connected to a horizontal fourth right idler roller, and the front and rear parts of the right end are each fixed with a fourth right reduction motor. The rotating shaft of the fourth right reduction motor is fixed coaxially with the right part of the fourth right idler roller. The piston rod of the fourth left hydraulic cylinder is hinged to the bottom of the fourth left tilting frame, and the piston rod of the fourth right hydraulic cylinder is hinged to the bottom of the fourth right tilting frame. When the piston rod of the fourth left hydraulic cylinder extends or retracts, it can drive the fourth left tilting frame to swing left and right. When the piston rod of the fourth right hydraulic cylinder extends or retracts, it can drive the fourth right tilting frame to swing left and right. When the two fourth servo motors are powered on and rotate in opposite directions, they can drive the fourth sliding seat to slide left and right along the fourth support seat through the fourth gear and the fourth rack.

[0015] Based on the above technical solution, the fourth lifting frame can measure the vertical distance to the bottom of the fourth support base through a distance measuring sensor, the fourth sliding base can measure the horizontal distance between the left and right sides of the fourth support base through a distance measuring sensor, the fourth left tilting frame can measure its attitude through an inclination sensor, and the fourth right tilting frame can measure its attitude through an inclination sensor.

[0016] Based on the above technical solution, the upper processing area includes a controller, a No. 5 upper rack, a No. 5 sliding seat, a No. 5 upper servo motor, a No. 5 front electric push rod, a No. 5 upper gear, a No. 5 rear electric push rod, a feeding device, an electrical control box, a collecting device, a No. 5 front lifting frame, a No. 5 rear lifting frame, a No. 5 lower servo motor, a No. 5 lower gear, a No. 5 left slider, and a No. 5 right slider. A vertical controller is fixed to the upper front of the main frame, and a horizontal No. 5 upper rack is fixed to the left and right sides of the top of the main frame. A horizontal No. 5 sliding seat is slidably connected to the upper part of the main frame. A horizontal No. 5 upper servo motor is fixed to the left and right sides of the top of the No. 5 sliding seat, and a vertical No. 5 front electric push rod is fixed to the front of the top. The rotating shafts of the two No. 5 upper servo motors are coaxially fixed. The device has a No. 5 upper gear, a vertical No. 5 rear electric push rod fixed to the rear top of the No. 5 sliding seat, and a vertical feeding device fixed to the left top of the sliding seat. An electrical control box and a collecting device are fixed to the right end of the No. 5 sliding seat. A vertical No. 5 front lifting frame is slidably connected to the front of the No. 5 sliding seat, and a vertical No. 5 rear lifting frame is slidably connected to the rear of the sliding seat. The bottom of the No. 5 front lifting frame is fixed to the bottom end of the push rod of the No. 5 front electric push rod, and a vertical No. 5 lower servo motor is fixed to the bottom. Two horizontal No. 5 lower gears are coaxially fixed to the shaft of the No. 5 lower servo motor. A horizontal No. 5 left slider and No. 5 right slider are slidably connected to the bottom of the No. 5 front lifting frame. The bottom of the No. 5 rear lifting frame is fixed to the bottom end of the push rod of the No. 5 rear electric push rod.

[0017] Based on the above technical solution, when the No. 5 front electric push rod is extended, it can drive the No. 5 front lifting frame to slide up and down along the No. 5 sliding seat. When the No. 5 rear electric push rod is extended, it can drive the No. 5 rear lifting frame to slide up and down along the No. 5 sliding seat. When the No. 5 upper servo motor is powered on and rotates in both directions, it can drive the No. 5 sliding seat to slide back and forth along the main frame through the No. 5 upper gear and the No. 5 upper rack. The No. 5 front lifting frame can measure its vertical distance to the obstruction below through a distance measuring sensor. The No. 5 rear lifting frame can measure its vertical distance to the obstruction below through a distance measuring sensor. The No. 5 sliding seat can measure its horizontal distance to the front and rear parts of the main frame through a distance measuring sensor.

[0018] Based on the above technical solution, the No. 5 left slider and the No. 5 right slider are respectively fixed with a No. 5 lower rack. The No. 5 main feed pipe, the No. 5 main welding gun, and the No. 5 main recovery pipe are sequentially fixed to the No. 5 left slider and the No. 5 right slider from front to back. The bottom of the No. 5 rear lifting frame is sequentially fixed with a vertical No. 5 auxiliary feed pipe, the No. 5 auxiliary welding gun, and the No. 5 auxiliary recovery pipe from front to back. The No. 5 lower racks of the No. 5 left slider and the No. 5 lower racks of the No. 5 right slider are centrally symmetrically arranged relative to the No. 5 lower servo motor from a top-view angle and mesh with the two No. 5 lower gears. The heads of the No. 5 main feed pipe, the No. 5 main welding gun, and the No. 5 main recovery pipe of the No. 5 left slider are connected to the No. 5 right slider. The heads of the No. 5 main feed pipe, the No. 5 main welding gun, and the No. 5 main recovery pipe are arranged downward and outward relative to the No. 5 lower servo motor. When the No. 5 lower servo motor rotates forward and backward, it can drive the No. 5 left slider and the No. 5 right slider to slide sideways closer to each other and sideways further away from each other along the No. 5 front lifting frame through the No. 5 lower rack. The left slider and the right slider can measure the horizontal distance between them through the distance measuring sensor. The No. 5 main feed pipe and the No. 5 auxiliary feed pipe are connected to the feeding device. The No. 5 main welding gun and the No. 5 auxiliary welding gun are electrically connected to the electrical control box. The No. 5 main recovery pipe and the No. 5 auxiliary recovery pipe are connected to the collection device.

[0019] Based on the above technical solution, the spot welding torch, the No. 5 main welding torch, and the No. 5 auxiliary welding torch track and identify weld seams using a laser weld seam sensor. The components include: a left motor, a right motor, a servo motor, the spot welding torch, a main electric push rod, a front reduction motor, a rear reduction motor, a correction distance sensor, an electric push rod, a main reduction motor, a servo motor, a left reduction motor, a right reduction motor, a controller, an upper servo motor, a front electric push rod, a rear electric push rod, a feeding device, an electrical control box, a collecting device, a lower servo motor, a distance sensor, an tilt sensor, and a laser weld seam sensor. The system is connected and electrically controlled by a controller. The spot welding torch is a gas-shielded welding torch with a wire feeder and is connected to an external gas-shielded welding machine. The No. 5 main welding torch and the No. 5 auxiliary welding torch are connected to an external dual-arc dual-wire digital welding system. The controller controls the external gas-shielded welding machine and the dual-arc dual-wire digital welding system. The correction distance sensor and the distance sensor are laser distance sensors. The No. 2 main hydraulic cylinder, the No. 2 auxiliary hydraulic cylinder, the No. 2 front hydraulic cylinder, the No. 2 rear hydraulic cylinder, the No. 2 lower hydraulic cylinder, the No. 2 upper hydraulic cylinder, the No. 4 main hydraulic cylinder, the No. 4 left hydraulic cylinder, and the No. 4 right hydraulic cylinder are connected to an external hydraulic transmission system. The controller electrically controls the external hydraulic control system.

[0020] Compared with the prior art, the present invention has the following advantages: The present invention can automatically feed, flip and align the flanges and webs, and quickly assemble H-beams horizontally by spot welding. It automatically selects the "horizontal corner welding" or "ship-shaped welding" welding mode according to the thickness of the web. During welding, the weld seam is automatically tracked by a laser weld seam tracker. The semi-finished H-beams can be flipped during the welding process. After the flipping and welding are completed, hydraulic power is used to quickly extrude and straighten the two flanges of the H-beams by using the No. 2 extrusion roller in conjunction with the distance measurement of the correction distance sensor.

[0021] The entire production line, based on the production process, allows semi-finished H-beams to flow between different processing areas, thereby achieving efficient and intelligent assembly, welding, and straightening of H-beams. Furthermore, the entire production line requires minimal physical exertion from operators and has a low demand for operators, which reduces operating costs and improves production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] Figure 2 This is a schematic diagram showing the cooperation between the No. 1 support frame, the No. 1 upper lifting frame, and the No. 1 lower lifting frame of the present invention.

[0024] Figure 3 This is an isometric view of the machining part of the present invention.

[0025] Figure 4 This is a schematic diagram of the bottom structure of the No. 2 clamping plate of the present invention.

[0026] Figure 5 This is a schematic diagram showing the cooperation between the second connecting rod and the second pusher seat of the present invention.

[0027] Figure 6 This is a schematic diagram of the rear structure of the No. 2 rear support frame of the present invention.

[0028] Figure 7 This is a schematic diagram of the rear structure of the No. 3 support frame of the present invention.

[0029] Figure 8 This is a schematic diagram of the structure of the flipping part of the present invention.

[0030] Figure 9 This is a schematic diagram showing the cooperation between the No. 4 sliding seat, the No. 4 left hydraulic cylinder, and the No. 4 right hydraulic cylinder of the present invention.

[0031] Figure 10 This is a schematic diagram of the bottom structure of the No. 5 sliding seat of the present invention.

[0032] In the diagram: 1. Main frame, 2. Front processing area, 3. Rear processing area, 4. Upper processing area, 5. Front spot welding section, 6. Rear spot welding section, 7. Processing section, 8. Limiting section, 9. Tilting section, 10. Support frame 1, 11. Left motor 1, 12. Right motor 1, 13. Upper lifting frame 1, 14. Lower lifting frame 1, 15. Servo motor 1, 16. Gear 1, 17. Left slider 1, 18. Right slider 1, 19. Rack 1, 20. Spot welding torch, 21. Support seat 2, 22. Left sliding seat 2, 23. Right sliding seat 2, 24. Push seat 2, 25. Connecting rod 2, 26. Clamping plate 2, 27. Support bar, 28. Main hydraulic cylinder 2, 29. Front roller frame 2, 30. 31. No. 2 rear idler roller frame; 32. No. 2 main idler roller; 33. No. 2 auxiliary idler roller; 34. No. 2 auxiliary hydraulic cylinder; 35. Correction section; 36. No. 2 main electric push rod; 37. No. 2 drive shaft; 38. No. 2 main gear; 39. No. 2 driven gear; 40. No. 2 front gear reduction motor; 41. No. 2 front support frame; 42. No. 2 front hydraulic cylinder; 43. No. 2 front lifting frame; 44. No. 2 front idler roller; 45. No. 2 rear support frame; 46. No. 2 rear lifting frame; 47. No. 2 upper lifting frame; 48. No. 2 rear idler roller; 49. No. 2 rear gear reduction motor; 50. No. 2 rear hydraulic cylinder; 51. No. 2 lower hydraulic cylinder; 52. No. 2 upper hydraulic cylinder; 53. No. 2 extrusion idler roller; 54. Correction distance sensor; 55. No. 3 support... Support frame, 56. No. 3 lifting frame, 57. No. 3 hydraulic cylinder, 561. No. 3 idler roller, 58. No. 3 baffle, 59. No. 3 upper rack, 60. No. 3 drive shaft, 61. No. 3 large gear, 62. No. 3 small gear, 63. No. 3 electric push rod, 64. No. 3 lower rack, 65. No. 4 support seat, 66. No. 4 rack, 67. No. 4 lifting frame, 68. No. 4 main hydraulic cylinder, 69. No. 4 slave idler roller, 70. No. 4 main idler roller, 71. No. 4 main reduction motor, 72. No. 4 sliding seat, 73. No. 4 servo motor, 74. No. 4 gear, 75. Tilting action part, 76. No. 4 left tilting frame, 77. No. 4 left hydraulic cylinder, 78. No. 4 right hydraulic cylinder, 79. No. 4 right tilting frame, 80. No. 4 auxiliary idler roller, 81. No. 4 Left idler roller, 82. No. 4 left geared motor, 83. No. 4 right idler roller, 84. No. 4 right geared motor, 85. Controller, 86. No. 5 upper rack, 87. No. 5 sliding seat, 88. No. 5 upper servo motor, 89. No. 5 front electric push rod, 90. No. 5 upper gear, 91. No. 5 rear electric push rod, 92. Feeding device, 93. Electrical control box, 94. Collection device, 95. No. 5 front lifting frame, 96. No. 5 rear lifting frame, 97. No. 5 lower servo motor, 98. No. 5 lower gear, 99. No. 5 left slider, 110. No. 5 right slider, 111. No. 5 lower rack, 112. No. 5 main feeding pipe, 113. No. 5 main welding gun, 114. No. 5 main recovery pipe, 115. No. 5 auxiliary feeding pipe, 116. No. 5 auxiliary welding gun.117. Auxiliary recovery pipe No. 5. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1-10 As shown, an automated H-beam production line includes a main frame 1, a front processing area 2, a rear processing area 3, an upper processing area 4, a front spot welding section 5, a rear spot welding section 6, a processing section 7, a limiting section 8, a tilting section 9, a first support frame 10, a first left motor 11, a first right motor 12, a first upper lifting frame 13, a first lower lifting frame 14, a first servo motor 15, a first gear 16, a first left slider 17, a first right slider 18, a first rack 19, and a spot welding gun 20. The main frame 1 has the front processing area 2 and the rear processing area 3 installed sequentially from front to back, and the upper processing area 4 is installed on top. The front processing area 2 has a front spot welding section 5 and a rear spot welding section 6, and three or more processing sections 7 in the middle. The rear processing area 3 has a limiting section 8 at the front and a tilting section 9 at the rear. Both the front spot welding section 5 and the rear spot welding section 6 include a first support frame 10. The first and second support frames 10 are fixed to the front and middle parts of the main frame 1, respectively. From left to right, the top of the two first support frames 10 are respectively fixed with a vertical first left motor 11 and a first right motor 12. From top to bottom, they are respectively slidably connected with a horizontal first upper lifting frame 13 and a first lower lifting frame 14. The middle part of the first upper lifting frame 13 and the first lower lifting frame 14 is respectively fixed with a vertical first servo motor 15. The rotating shaft of each first servo motor 15 is respectively fixed with a first gear 16. The left part of the first upper lifting frame 13 and the first lower lifting frame 14 is respectively slidably connected with a horizontal first left slider 17. The right part of the first upper lifting frame 13 and the first lower lifting frame 14 is respectively slidably connected with a horizontal first right slider 18. The first left slider 17 and the first right slider 18 are respectively fixed with a horizontal first rack 19. The first left slider 17 and the first right slider 18 are respectively equipped with a spot welding gun 20.

[0035] The rotating shafts of the first left motor 11 and the first right motor 12 are interlocked with the upper part of the first support frame 10. The rotating shafts of the first left motor 11 and the first right motor 12 are rotatably connected to the bottom of the first support frame 10. The rotating shaft of the first left motor 11 is threadedly connected to the first lower lifting frame 14 and interlocked with the first upper lifting frame 13. The rotating shaft of the first right motor 12 is threadedly connected to the first upper lifting frame 13 and interlocked with the first lower lifting frame 14. Servo motor 15 is fixed to the back-to-back end faces of upper lifting frame 13 and lower lifting frame 14. The rack 19 of left slider 17 and right slider 18 are centrally symmetrically arranged relative to servo motor 15 and mesh with gear 16. The heads of the spot welding torch 20 of left slider 17 and right slider 18 are outwardly oriented relative to servo motor 15. The heads of the spot welding torch 20 are located on the upper lifting frame 14. Within the adjacent space of the lowering frame 13 and the first lower lifting frame 14, the head of the spot welding torch 20 can be directed towards the gap between the web plate and the wing plate, facilitating spot welding. When the first left motor 11 is energized and rotates, it can drive the first lower lifting frame 14 to slide up and down along the first support frame 10. When the first right motor 12 is energized and rotates, it can drive the first upper lifting frame 13 to slide up and down along the first support frame 10. When the first servo motor 15 is energized and rotates, it can drive a... The left slider 17 and the right slider 18 move closer to each other and further away from each other. The upper lifting frame 13 and the lower lifting frame 14 can measure the horizontal distance between the left slider 17 and the right slider 18 through the distance measuring sensor, and can also measure the vertical distance between each other and to the support frame 10 through the distance measuring sensor. This allows for indirect adjustment of the up-down and left-right positions of the spot welding gun 20, and indirect knowledge of its specific position, thus facilitating the control of the position of the spot welding gun 20.

[0036] The processing section 7 includes a second support base 21, a second left sliding base 22, a second right sliding base 23, a second push base 24, a second connecting rod 25, a second clamping plate 26, a support bar 27, a second main hydraulic cylinder 28, a second front idler roller frame 29, a second rear idler roller frame 30, a second main idler roller 31, a second auxiliary idler roller 32, a second auxiliary hydraulic cylinder 33, and a straightening section 34. The second support base 21 is fixed to the front of the main frame 1. The second left sliding base 22 and the second right sliding base 23 are slidably connected from left to right to the front of the second support base 21. A sliding seat 23 is provided, and a horizontal second push seat 24 is slidably connected to its front middle section. The second left sliding seat 22 and the second right sliding seat 23 are respectively hinged to a horizontal second connecting rod 25. The rear part of the second connecting rod 25 is hinged to the second push seat 24. Horizontal second clamping plates 26 are respectively hinged to the upper parts of the second left sliding seat 22 and the second right sliding seat 23. A horizontal support bar 27 is fixed in the front-rear direction near the top of the second clamping plate 26, close to the front middle of the second support seat 21. The support bar 27 is used to support the wing plate. The support, under the action of gravity, causes the edge of the wingplate to fit against it, thereby determining the wingplate's reference and facilitating the adjustment of the wingplate's vertical position. The second left sliding seat 22 and the second right sliding seat 23 are respectively hinged to the middle portions of the second main hydraulic cylinder 28. The piston rod of the second main hydraulic cylinder 28 is hinged to the second clamping plate 26 directly above it. The lower front part of the second clamping plate 26 is hinged to the horizontal second front roller frame 29, and the lower rear part is hinged to the horizontal second rear roller frame 30. The second front roller frame 29 and the second rear roller frame 30... The roller frame 30 is rotatably connected to a horizontal second main support roller 31 and a second auxiliary support roller 32. The second main support roller 31 is used to support and drag the wing plate. The second auxiliary support roller 32 is used to contact the outer edge of the wing plate when straightening the semi-finished H-beam, so as to facilitate the forward and backward sliding of the semi-finished H-beam. The second rear support roller frame 30 is hinged to a second auxiliary hydraulic cylinder 33. The piston rod of the second auxiliary hydraulic cylinder 33 is hinged to the second front support roller frame 29. The second support base 21 is equipped with a straightening part 34.

[0037] A horizontal second main electric push rod 35 is fixed to the rear top of the second support base 21. The front end of the push rod 35 is fixed to the rear end of the second push base 24. A horizontal second transmission shaft 36 is rotatably connected to the lower front and lower rear parts of the second clamping plate 26. A second main gear 37 is coaxially fixed to each of the second transmission shafts 36. A second driven gear 38 is coaxially fixed to each of the second main rollers 31. A horizontal second front reduction motor 39 is fixed to the middle bottom of the second clamping plate 26. The rotating shaft of the second front reduction motor 39 is synchronously transmitted to the second transmission shafts 36 at the front and rear parts through synchronous belts and synchronous pulleys. A vertical second front support frame 40 and a second front hydraulic cylinder 41 are fixed to the top front part of the second support base 21. The support frame 40 is slidably connected to a vertical second front lifting frame 42. The front and rear parts of the second front lifting frame 42 are respectively rotatably connected to horizontal second front idler rollers 43, and the upper bottom end is fixed to the top of the piston rod of the second front hydraulic cylinder 41. When the piston rod of the second front hydraulic cylinder 41 extends and retracts, it can drive the second front lifting frame 42 to slide up and down along the second front support frame 40. The second left sliding seat 22 and the second right sliding seat 23 can measure the horizontal distance between each other through a distance measuring sensor, thereby indirectly deriving the distance between the two wing plates, which is convenient for adjusting the distance between the two wing plates according to the width of the web plate. The second clamping plate 26 can measure its attitude through an inclination sensor. The second front idler roller frame 29 and the second rear idler roller frame 30 can measure their attitude through an inclination sensor.

[0038] The correction section 34 includes a second rear support frame 44, a second rear lifting frame 45, a second upper lifting frame 46, a second lower lifting frame 47, a second rear idler roller 48, a second rear reduction motor 49, a second rear hydraulic cylinder 50, a second lower hydraulic cylinder 51, a second upper hydraulic cylinder 52, and a second compression idler roller 53. A vertical second rear support frame 44 is fixed to the top rear of the second support base 21. A horizontal second rear lifting frame 45 is slidably connected to the front of the second rear support frame 44, and horizontal second upper lifting frames 46 and second lower lifting frames 47 are slidably connected to the rear from top to bottom. Horizontal second rear idler rollers 48 are rotatably connected to both the front and rear of the second rear lifting frame 45, and a horizontal second rear reduction motor 49 is fixed to the left side. The rotating shaft of 49 is meshed with two No. 2 rear rollers 48 through spur gears. The rear of the No. 2 rear support frame 44 is hinged to a No. 2 rear hydraulic cylinder 50. The piston rod of the No. 2 rear hydraulic cylinder 50 is hinged to the No. 2 rear lifting frame 45. The rear of the No. 2 support seat 21 is hinged to a No. 2 lower hydraulic cylinder 51. The piston rod of the No. 2 lower hydraulic cylinder 51 is hinged to the No. 2 lower lifting frame 47. The upper part of the No. 2 rear support frame 44 is hinged to a No. 2 upper hydraulic cylinder 52. The piston rod of the No. 2 upper hydraulic cylinder 52 is hinged to the No. 2 upper lifting frame 46. The adjacent parts of the No. 2 lower lifting frame 47 and the No. 2 upper lifting frame 46 are respectively rotatably connected to two horizontal No. 2 extrusion rollers 53. The No. 2 extrusion rollers 53 are used to extrude and correct the two side flanges of the semi-finished H-beam.

[0039] When the second main electric push rod 35 is energized and extends, it can drive the second push seat 24 to slide back and forth. When the second push seat 24 slides back and forth, it can drive the second left sliding seat 22 and the second right sliding seat 23 to slide left and right along the second support seat 21, moving away from each other and closer together. This allows for simultaneous adjustment of the left and right positions of the two wing plates during assembly, and then the two wing plates can push the web plate in the center, so that the assembled H-beam can be in the middle of the main frame 1. When the second main hydraulic cylinder 28 extends and retracts its piston rod, it can drive the second clamping plate 26 to swing left and right. When the second auxiliary hydraulic cylinder 33 extends and retracts its piston rod, it can drive the second front idler roller frame 29 and the second rear idler roller frame 30 to swing back and forth, opening and closing. When the second front idler roller frame 29 and the second rear idler roller frame 30 swing back and forth, the second driven gear 38 can mesh with the second main gear 37. When frame 29 and the second rear idler roller frame 30 retract and swing back and forth, the second driven gear 38 and the second main gear 37 can disengage. When the second driven gear 38 and the second main gear 37 are engaged, the outer circumferential wall of the second main idler roller 31 protrudes from the top surface of the second clamping plate 26, thereby using the second main idler roller 31 to support and drag the wing plate, preventing the wing plate from sliding and rubbing against the second clamping plate 26. When the second driven gear 38 and the second main gear 37 disengage, the second auxiliary idler roller 39... The outer circumferential wall of the idler roller 32 can protrude from the top surface of the second clamping plate 26, thereby enabling the second auxiliary idler roller 32 to contact and guide the edge of the wing plate, preventing the edge of the wing plate from sliding and rubbing against the second clamping plate 26. The outer circumferential walls of the second main idler roller 31 and the second auxiliary idler roller 32 can only alternately protrude from the top surface of the second clamping plate 26, and the outer circumferential walls of the second main idler roller 31 and the second auxiliary idler roller 32 can be completely located below the top surface of the second clamping plate 26.

[0040] The second rear idler roller 48 rotates at the same speed. When the piston rod of the second rear hydraulic cylinder 50 extends or retracts, it can drive the second rear lifting frame 45 to slide up and down along the second rear support frame 44. The second rear lifting frame 45 can measure the vertical distance between the bottom of the second rear support frame 44 below it through a distance measuring sensor, thereby indirectly knowing the vertical position of the second rear idler roller 48. When the piston rod of the second lower hydraulic cylinder 51 extends or retracts, it can drive the second lower lifting frame 47 to slide up and down along the second rear support frame 44. The second lower lifting frame 47 can measure the vertical distance between the bottom of the second rear support frame 44 below it through a distance measuring sensor, thereby indirectly knowing the vertical position of the second rear support frame 47. The vertical position of the second extrusion roller 53 on the second support frame 44 is determined by the extension and retraction of the piston rod of the second hydraulic cylinder 52. This allows the second lifting frame 46 to slide up and down along the second rear support frame 44. The second lifting frame 46 can measure the vertical distance between the top of the second rear support frame 44 above it using a distance measuring sensor, thereby indirectly determining the vertical position of the second extrusion roller 53 on the second lifting frame 46. Multiple sets of vertical correction distance measuring sensors 54 are fixed to the top of the inner wall of the second rear support frame 44. These correction distance measuring sensors 54 can measure the vertical distance between the obstructions below them, which makes it easy to determine whether the top flange is horizontal when extruding and correcting H-beams.

[0041] The limiting part 8 includes a third support frame 55, a third lifting frame 56, a third hydraulic cylinder 57, a third idler roller 561, a third baffle 58, a third upper rack 59, a third drive shaft 60, a third large gear 61, a third small gear 62, a third electric push rod 63, and a third lower rack 64. A vertical third support frame 55 is fixed to the rear of the main frame 1. A horizontal third lifting frame 56 is slidably connected to the front of the third support frame 55, and a vertical third lifting frame 56 is fixed to the top of the front of the third support frame 55. Hydraulic cylinder 57; horizontal roller 561 rotatably connected to lifting frame 56; two vertical baffles 58 slidably connected to the rear of support frame 55; when the baffles 58 are closed, they block the web and wing plates, thus aligning the rear ends of the web and wing plates for easier manufacturing and sales; horizontal upper racks 59 are fixed to the rear ends of the two baffles 58 respectively; vertical drive shafts are rotatably connected to the left and right sides of support frame 55. 60. The upper part of the third transmission shaft 60 is coaxially fixed with a third large gear 61, and the bottom is coaxially fixed with a third small gear 62. The two third large gears 61 mesh with two third upper racks 59. The top left and right ends of the third support frame 55 are each fixed with a horizontal third electric push rod 63. The ends of the push rods of the two third electric push rods 63 are respectively fixed with horizontal third lower racks 64. The third lower racks 64 mesh with the third small gears 62. The third hydraulic cylinder... When the piston rod 57 is extended or retracted, it can drive the No. 3 lifting frame 56 to slide up and down along the No. 3 electric push rod 63. When the two No. 3 electric push rods 63 are extended or retracted, they can drive the two No. 3 baffles 58 to slide left and right away and right and close to each other along the No. 3 support frame 55, which facilitates the quick adjustment of the left and right positions of the No. 3 baffles 58, so that they can quickly come together and separate.

[0042] The flipping section 9 includes a fourth support base 65, a fourth rack 66, a fourth lifting frame 67, a fourth main hydraulic cylinder 68, a fourth driven roller 69, a fourth main roller 70, a fourth main reduction motor 71, a fourth sliding seat 72, a fourth servo motor 73, a fourth gear 74, and a flipping action section 75. A horizontal fourth support base 65 is fixed to the rear of the main frame 1, and horizontal fourth racks 66 are fixed to the front and rear of the top. A vertical fourth lifting frame 67 is slidably connected to the front, middle, and rear of the fourth support base 65. A fourth main hydraulic cylinder 68 is hinged to the front, middle, and rear of the fourth support base 65. The piston rod of the fourth main hydraulic cylinder 68 is hinged to the fourth lifting frame 67, and when the piston rod extends or retracts, it can drive the fourth lifting frame 67 to slide up and down along the fourth support base 65. Each of the four lifting frames 67 is rotatably connected to a horizontal fourth-generation idler roller 69, and a horizontal fourth-generation main idler roller 70 is rotatably connected to the middle of the frame. A horizontal fourth-generation main reduction motor 71 is fixed at the middle of the right end of the fourth lifting frame 67. The shaft of the fourth-generation main reduction motor 71 is coaxially fixed with the right side of the fourth-generation main idler roller 70. The fourth-generation idler rollers 69 at the front and rear of the fourth lifting frame 67 and the fourth-generation main idler roller 70 in the middle of the frame are synchronously rotated through the meshing of a synchronous belt and a synchronous pulley. The fourth-generation support base 65 is slidably connected to the left and right sides of the front and rear of the support base 65. A horizontal fourth-generation servo motor 73 is fixed to each of the two fourth-generation servo motors 72. A fourth-generation gear 74 is coaxially fixed to the shaft of each of the two fourth-generation servo motors 73. The two fourth-generation gears 74 mesh with a fourth-generation rack 66. A flipping action part 75 is also installed on each of the two fourth-generation servo motors 72.

[0043] The flipping action section 75 includes a fourth left flipping frame 76, a fourth left hydraulic cylinder 77, a fourth right hydraulic cylinder 78, a fourth right flipping frame 79, a fourth auxiliary roller 80, a fourth left roller 81, a fourth left reduction motor 82, a fourth right roller 83, and a fourth right reduction motor 84. The front parts of the two fourth sliding seats 72 are respectively hinged to horizontal fourth left flipping frames 76, and vertical fourth left hydraulic cylinders 77 and fourth right hydraulic cylinders 78 are respectively hinged to them. The right side of section 76 is hinged with a No. 4 right tilting frame 79. The front and rear ends of the No. 4 left tilting frame 76 and the No. 4 right tilting frame 79 are each rotatably connected to a horizontal No. 4 auxiliary roller 80. The No. 4 auxiliary roller 80 is used to cooperate with the No. 4 left roller 81 and the No. 4 right roller 83 to provide auxiliary support for the H-beam. The front and rear ends of the No. 4 left tilting frame 76 are each rotatably connected to a horizontal No. 4 left roller 81, and the front and rear ends of the left end are each fixed with a No. 4 left reduction motor 82. The rotating shaft of the fourth left support roller 81 is fixed to the same axis as the left end of the fourth left support roller 81. The fourth right tilting frame 79 has horizontally connected fourth right support rollers 83 at both the front and rear ends, and a fourth right reduction motor 84 is fixed to the front and rear ends of the right end of each of these components. The fourth left support roller 81 and the fourth right support roller 83 provide the main support and drag for the H-beam. The rotating shaft of the fourth right reduction motor 84 is fixed to the same axis as the right side of the fourth right support roller 83. The piston rod of the fourth left hydraulic cylinder 77 is connected to the bottom of the fourth left tilting frame 76. The piston rod of the fourth right hydraulic cylinder 78 is hinged to the bottom of the fourth right tilting frame 79. When the piston rod of the fourth left hydraulic cylinder 77 extends or retracts, it can drive the fourth left tilting frame 76 to swing left and right. When the piston rod of the fourth right hydraulic cylinder 78 extends or retracts, it can drive the fourth right tilting frame 79 to swing left and right. When the two fourth servo motors 73 are powered on and rotate in opposite directions, they can drive the fourth sliding seat 72 to slide left and right along the fourth support seat 65 through the fourth gear 74 and the fourth rack 66.

[0044] The fourth lifting frame 67 can measure the vertical distance to the bottom of the fourth support seat 65 through a distance measuring sensor, thereby indirectly deducing the vertical position of the fourth auxiliary roller 80. The fourth sliding seat 72 can measure the horizontal distance between the left and right sides of the fourth support seat 65 through a distance measuring sensor. The fourth left tilting frame 76 measures its posture through an inclination sensor, and the fourth right tilting frame 79 measures its posture through an inclination sensor.

[0045] The upper processing area 4 includes a controller 85, a No. 5 upper rack 86, a No. 5 sliding seat 87, a No. 5 upper servo motor 88, a No. 5 front electric push rod 89, a No. 5 upper gear 90, a No. 5 rear electric push rod 91, a feeding device 92, an electrical control box 93, a collecting device 94, a No. 5 front lifting frame 95, a No. 5 rear lifting frame 96, a No. 5 lower servo motor 97, a No. 5 lower gear 98, a No. 5 left slider 99, and a No. 5 right slider 110. A vertical controller 85 is fixed to the upper front of the main frame 1, and a horizontal No. 5 upper rack 86 is fixed to the left and right sides of its top. A horizontal No. 5 sliding seat 87 is slidably connected to the upper part of the main frame 1. A horizontal No. 5 upper servo motor 88 is fixed to the left and right sides of the top of the sliding seat 87, and a vertical No. 5 front electric push rod 89 is fixed to the front of its top. The rotating shafts of the two No. 5 upper servo motors 88 are coaxially fixed with... The No. 5 upper gear 90, the No. 5 sliding seat 87 has a vertical No. 5 rear electric push rod 91 fixed at the top rear, and a vertical feeding device 92 fixed at the top left. The No. 5 sliding seat 87 has an electric control box 93 and a collection device 94 fixed at the right end. The No. 5 sliding seat 87 has a vertical No. 5 front lifting frame 95 slidably connected to the front part and a vertical No. 5 rear lifting frame 96 slidably connected to the rear part. The bottom of the No. 5 front lifting frame 95 is fixed to the bottom end of the push rod of the No. 5 front electric push rod 89, and a vertical No. 5 lower servo motor 97 is fixed to the bottom. The shaft of the No. 5 lower servo motor 97 is coaxially fixed with two horizontal No. 5 lower gears 98. The bottom of the No. 5 front lifting frame 95 is slidably connected to a horizontal No. 5 left slider 99 and a No. 5 right slider 110. The bottom of the No. 5 rear lifting frame 96 is fixed to the bottom end of the push rod of the No. 5 rear electric push rod 91.

[0046] When the No. 5 front electric push rod 89 is extended, it can drive the No. 5 front lifting frame 95 to slide up and down along the No. 5 sliding seat 87. When the No. 5 rear electric push rod 91 is extended, it can drive the No. 5 rear lifting frame 96 to slide up and down along the No. 5 sliding seat 87. When the No. 5 upper servo motor 88 is powered on and rotates in both directions, it can drive the No. 5 sliding seat 87 to slide back and forth along the main frame 1 through the No. 5 upper gear 90 and the No. 5 upper rack 86. The No. 5 front lifting frame 95 can measure its vertical distance to the obstruction below through a distance measuring sensor. The No. 5 rear lifting frame 96 can measure its vertical distance to the obstruction below through a distance measuring sensor. The distance sensor can measure the vertical distance from it to the obstruction below, thus facilitating the derivation of the vertical distance from the No. 5 front lifting frame 95 and the No. 5 rear lifting frame 96 to the H-beam below. This allows the No. 5 lower rack 111, the No. 5 main feeding pipe 112, the No. 5 main welding gun 113, the No. 5 main recovery pipe 114, the No. 5 auxiliary feeding pipe 115, the No. 5 auxiliary welding gun 116, and the No. 5 auxiliary recovery pipe 117 to approach the gaps on the left and right sides of the H-beam in the vertical direction. The No. 5 sliding seat 87 can measure the front and rear horizontal distances to the front and rear parts of the main frame 1 through the distance sensor.

[0047] The fifth left slider 99 and the fifth right slider 110 are respectively fixed with a fifth lower rack 111. From front to back, the fifth left slider 99 and the fifth right slider 110 are sequentially fixed with a fifth main feed pipe 112, a fifth main welding gun 113, and a fifth main recovery pipe 114. From front to back, the bottom of the fifth rear lifting frame 96 is sequentially fixed with a vertical fifth auxiliary feed pipe 115, a fifth auxiliary welding gun 116, and a fifth auxiliary recovery pipe 117. The fifth lower rack 111 of the fifth left slider 99 and... The fifth lower rack 111 of the fifth right slider 110 is centrally symmetrically arranged with respect to the fifth lower servo motor 97 from a top-view perspective and meshes with the two fifth lower gears 98. The heads of the fifth main feed pipe 112, the fifth main welding gun 113, and the fifth main recovery pipe 114 of the fifth left slider 99 are arranged downward and outward relative to the heads of the fifth main feed pipe 112, the fifth main welding gun 113, and the fifth main recovery pipe 114 of the fifth right slider 110, respectively. The arrangement ensures that the heads of the No. 5 main feed pipe 112, the No. 5 main welding gun 113, and the No. 5 main recovery pipe 114 point towards the gaps of the H-beams on the lower left and right sides. When the No. 5 lower servo motor 97 rotates forward and backward, it can drive the No. 5 left slider 99 and the No. 5 right slider 110 to slide sideways towards each other and sideways away from each other along the No. 5 front lifting frame 95 via the No. 5 lower rack 111. This facilitates the movement of the No. 5 main feed pipe 112, the No. 5 main welding gun 113, and the No. 5 main recovery pipe 114. The head of 14 is close to the gaps on the left and right sides of the H-beam in the left and right direction. The left slider 99 and the right slider 110 can measure the horizontal distance between them through the distance sensor. The main feed pipe 112 and the auxiliary feed pipe 115 are connected to the feeding device 92. The main welding gun 113 and the auxiliary welding gun 116 are electrically connected to the control box 93. The main recovery pipe 114 and the auxiliary recovery pipe 117 are connected to the collection device 94.

[0048] The spot welding torch 20, the No. 5 main electric welding torch 113, and the No. 5 auxiliary electric welding torch 116 track and identify weld seams using a laser weld seam sensor. The system includes a left motor 11, a right motor 12, a servo motor 15, a spot welding torch 20, a main electric push rod 35, a front reduction motor 39, a rear reduction motor 49, a correction distance sensor 54, an electric push rod 63, a main reduction motor 71, a servo motor 73, a left reduction motor 82, a right reduction motor 84, a controller 85, an upper servo motor 88, a front electric push rod 89, a rear electric push rod 91, a feeding device 92, an electrical control box 93, a collecting device 94, a lower servo motor 97, a distance sensor, an tilt sensor, and a laser weld seam sensor. The system is electrically connected and controlled by controller 85. The spot welding torch 20 is a gas-shielded welding torch with a wire feeder and is connected to an external gas-shielded welding machine. The No. 5 main welding torch 113 and the No. 5 auxiliary welding torch 116 are connected to an external dual-arc dual-wire digital welding system. The controller 85 controls the external gas-shielded welding machine and the dual-arc dual-wire digital welding system. The correction distance sensor 54 and the distance sensor are laser distance sensors. The No. 2 main hydraulic cylinder 28, the No. 2 auxiliary hydraulic cylinder 33, the No. 2 front hydraulic cylinder 41, the No. 2 rear hydraulic cylinder 50, the No. 2 lower hydraulic cylinder 51, the No. 2 upper hydraulic cylinder 52, the No. 4 main hydraulic cylinder 68, the No. 4 left hydraulic cylinder 77, and the No. 4 right hydraulic cylinder 78 are connected to an external hydraulic transmission system. The controller 85 electrically controls the external hydraulic control system.

[0049] Working principle of the invention: For ease of describing the motion state, the following descriptions of the rotation directions of "clockwise" and "counterclockwise" are all observed from the right-hand view and will not be explained separately.

[0050] The data for the H-beam to be welded is input into the controller 85. The controller 85 then automatically extends the third electric push rod 63, thereby using the third lower rack 64, the third pinion 62, the third drive shaft 60, the third large gear 61, and the third upper rack 59 to bring the two third baffles 58 together. Subsequently, the controller 85 automatically extends the piston rods of the second front hydraulic cylinder 41 and the second rear hydraulic cylinder 50 a certain distance and automatically controls the second rear reduction motor 49 to rotate forward, achieving coplanar highest points on the outer circumferential walls of the second front roller 43 and the second rear roller 48, and achieving clockwise rotation of the second rear roller 48. At this point, the web plate is first horizontally transported to the front of the device in a front-to-back direction, and then placed on the second front roller 43 from front to back. At the top of the second rear idler roller 48, the second rear idler roller 48, rotating clockwise, accelerates the rearward movement of the web plate until the rear end of the web plate is blocked by the third baffle 58. Then, the second rear reduction motor 49 is manually stopped via the controller 85. The controller 85 then automatically extends each of the second main hydraulic cylinders 28 a certain distance, automatically retracts the second auxiliary hydraulic cylinder 33, automatically rotates the second front reduction motor 39, and automatically retracts the piston rod of the second rear hydraulic cylinder 50. This causes the left and right clamping plates of the main frame 1 to form an inverted "V" angle, causing the second front idler roller frame 29 and the second rear idler roller frame 30 to retract relative to each other, thus meshing the second main gear 37 with the second driven gear 38. The second main roller 31 is driven clockwise by the second front reduction motor 39, the second drive shaft 36, the second main gear 37, the second driven gear 38, the synchronous belt, and the synchronous pulley. At this time, the two wing plates are tilted and lifted in a front-to-back direction and fed into the top of the second main roller 31 from front to back. Simultaneously, the edges of the wing plates are pressed tightly against the support strip 27 under the action of gravity. The rotating second main roller 31 can drag the wing plates backward until the rear end of the wing plates is blocked by the third baffle 58. Then, the second front reduction motor 39 is manually stopped by the controller 85. The controller 85 then automatically controls the second main electric push rod 35 to extend and retract appropriately, thereby utilizing the second push seat 24, the second connecting rod 25, the second left sliding seat 22, and the second right sliding seat 24. The seat 23 adjusts the horizontal distance between the two side plates. Then, the controller 85 controls the second main hydraulic cylinder 28 to continue extending until all the second clamping plates 26 are in a vertical position, thus making the two wing plates vertical and allowing the inner sides to fit against the left and right sides of the web plate, automatically aligning them into an H-shape. Subsequently, the controller 85 controls the first left motor 11, the first right motor 12, and the first servo motor 15 to operate, using the spot welding guns 20 to align with the joints of the two wing plates and the web plate (upper left joint, lower left joint, upper right joint, and lower right joint), and identifies the joints using a laser weld seam sensor. Then, the controller 85 controls the spot welding guns 20 to perform spot welding on the joints, thus defining the relative position of the web plate and the wing plates.After spot welding is completed, controller 85 controls left motor 11, right motor 12, and servo motor 15 to reverse their actions to achieve a reset, and controls electric push rod 63 to retract. This allows the separation of the two baffles 58 using lower rack 64, pinion 62, drive shaft 60, large gear 61, and upper rack 59, facilitating the passage of the semi-finished H-beams after spot welding through support frame 55. Subsequently, controller 85 automatically controls hydraulic cylinder 57 and main hydraulic cylinder 58. Cylinder 68 extends a certain distance, thereby using the third idler roller 561 to lift and support the bottom end of the wing plate, and making the highest point of the outer circumference of the fourth main idler roller 70 and the fourth auxiliary idler roller 69 equal to the highest point of the outer circumference of the third idler roller 561. It also automatically controls the second front reduction motor 39 and the second rear reduction motor 49 to rotate clockwise, thus conveying the semi-finished H-beams after spot welding backwards until the semi-finished H-beams are completely placed on the tops of the fourth main idler roller 70 and the fourth auxiliary idler roller 69. During the process, the controller 85 controls the spot welding gun 20 to perform welding at a fixed point, ensuring the stability of the web and flange positions. Simultaneously, the controller 85 automatically controls the fourth main reduction motor 71 to rotate clockwise, thereby rotating the fourth main idler roller 70 clockwise. This, in turn, uses the synchronous belt and pulley to drive the fourth driven idler roller 69 clockwise, facilitating the backward dragging of the semi-finished H-beam. Once the semi-finished H-beam is completely resting on the tops of the fourth main idler roller 70 and the fourth driven idler roller 69, the worker controls the process via the controller 85. The No. 2 front reduction motor 39, the No. 2 rear reduction motor 49, and the No. 4 main reduction motor 71 stop rotating. Then, the controller 85 automatically controls the No. 4 main hydraulic cylinder 68 to retract its piston rod, so that the semi-finished H-beams fall simultaneously on the top of the No. 4 auxiliary roller 80, the No. 4 left roller 81, and the No. 4 right roller 83. Then, the controller 85 divides the input web thickness. When the web thickness is ≥12mm, it automatically selects to enter the "ship-shaped welding" mode. When the web thickness is <12mm, it automatically selects to enter the "flat fillet welding" mode. In the "ship-shaped welding" mode, controller 85 controls the extension of piston rods of the fourth left hydraulic cylinder 77 and the fourth right hydraulic cylinder 78, causing the fourth left tilting frame 76 and the fourth right tilting frame 79 to swing upwards, forming a 90-degree angle to lift the semi-finished H-beam. At this time, the fourth left tilting frame 76 and the fourth right tilting frame 79 are both at a 45-degree angle to the horizontal plane, thus achieving the "ship-shaped welding" lifting. Subsequently, the worker controls the fifth upper servo motor 88 to rotate counterclockwise through controller 85, thereby using the meshing of the fifth gear 90 and the fifth rack 86 to make the fifth sliding seat 87 slide backward along the main frame 1 until the front and rear positions of the fifth auxiliary feeding pipe 115 are the same as the front and rear positions of the last part of the seam of the semi-finished H-beam splice. Then, controller 85 controls the fifth rear electric push rod 91 to extend and controls the fourth servo motor 73 to rotate until the fifth main feeding pipe 112 is exactly above the last part of the weld seam without the obstruction of the upper wing plate.Subsequently, controller 85 controls servo motor 88 to rotate clockwise and feeds flux to auxiliary feed pipe 115 via feeding device 92. Controlling auxiliary welding gun 116 via control box 93 performs welding and collecting device 94 draws out residual flux through auxiliary recovery pipe 117, thus achieving back-to-foreign moving welding of the gap until the laser weld seam sensor identifies that the gap has been welded. During this process, controller automatically controls servo motor 73 to rotate based on the laser weld seam sensor's recognition result, adjusting the left and right positions of the semi-finished H-beam to ensure stable welding position. Then, controller 85 resets servo motor 88 and rear electric push rod 91. The worker then controls controller 85 to flip the semi-finished H-beam and weld other gaps until all four gaps are completely welded. In the "flat fillet welding" mode, the worker controls the No. 5 upper servo motor 88 to rotate counterclockwise via controller 85. This, through the meshing of the No. 5 gear 90 and the No. 5 rack 86, causes the No. 5 sliding seat 87 to slide backward along the main frame 1 until the front-to-back position of the No. 5 main feed pipe 112 is the same as the front-to-back position of the last part of the gap at the joint of the semi-finished H-beam. Then, controller 85 controls the No. 5 front electric push rod 89 to extend and controls the No. 5 lower servo motor 97 to rotate, thereby adjusting the height and left-to-right position of the two No. 5 main feed pipes 112 until the No. 5 main feed pipes 112 are exactly above the last part of the weld. Then, controller 85 controls the No. 5 upper servo motor 88 to rotate counterclockwise and controls the feeding device 92 to deliver flux to the No. 5 main feed pipes 112. The electrical control box 93 controls the fifth auxiliary welding gun 113 to perform welding, and controls the collection device 94 to draw out the remaining welding flux through the fifth main recovery pipe 114, thus achieving back-to-forth moving welding of the gap until the laser weld seam sensor identifies that the gap has been welded. During this process, the controller automatically controls the fourth servo motor 73 to rotate based on the laser weld seam sensor's recognition result, thereby adjusting the left and right position of the semi-finished H-beam to ensure the stability of the welding position. Subsequently, the controller 85 controls the fifth upper servo motor 88, the fifth front electric push rod 89, and the fifth lower servo motor 97 to reset. Then, the worker controls the controller 85 to flip the semi-finished H-beam and weld the other two gaps again until all four gaps are completely welded.

[0051] When it is necessary to flip the semi-finished H-beam, control the extension of hydraulic cylinders 77 (left) and 78 (right) to cause the left and right flipping frames 76 and 79 to swing upward at a 90-degree angle, thus providing "ship-shaped" support for the semi-finished H-beam. Then, operate hydraulic cylinders 77 according to the flipping direction. Specifically, when flipping to the right, extend hydraulic cylinder 77 while retracting it until the left flipping frame 76 is vertical and the right flipping frame 79 is horizontal; when flipping to the left, extend hydraulic cylinder 78. The system controls the retraction of hydraulic cylinder 77 (left) until left tilting frame 76 is horizontal and right tilting frame 79 is vertical, thus achieving a 90-degree tilt in the corresponding direction for the semi-finished H-beam. Then, it controls the retraction of piston rods of hydraulic cylinders 77 and 78, bringing left and right tilting frames 76 and 79 to a horizontal position. When another 90-degree tilt in the same direction is needed, servo motor 73 is rotated, and gear 74 and rack 66 mesh to slide sliding seat 72 left and right, transporting the semi-finished H-beam directly above main roller 70 and auxiliary roller 69. Then, the system controls... The piston rod of the fourth main hydraulic cylinder 68 extends, lifting the semi-finished H-beam from contact with the fourth auxiliary roller 80, the fourth left roller 81, and the fourth right roller 83 by the fourth main roller 70 and the fourth auxiliary roller 69. Then, according to the flipping direction, the fourth servo motor 73 rotates accordingly, causing the fourth sliding seat 72 to move in the corresponding direction. For example, when it is necessary to continue flipping to the right, the fourth sliding seat 72 slides to the right, positioning the semi-finished H-beam above the fourth left flipping frame 76. Then, the piston rod of the fourth main hydraulic cylinder 68 retracts, allowing the fourth left roller 81 and the fourth auxiliary roller 80 of the fourth left flipping frame 76 to move the semi-finished H-beam further... The process begins with lifting, followed by controlling the extension of piston rods in the left hydraulic cylinder 77 and right hydraulic cylinder 78 to lift the semi-finished H-beam for "ship-shaped welding." Then, the left hydraulic cylinder 77 extends its piston rod again, while the right hydraulic cylinder 78 retracts its piston rod, ensuring the left tilting frame 76 is vertical and the right tilting frame 79 is horizontal. This allows the semi-finished H-beam to be tilted 90 degrees to the right. The left hydraulic cylinder 77 then retracts its piston rod, bringing the left tilting frame 76 horizontal. This completes the tilting process. The 90-degree tilt to the left can be deduced similarly and will not be described in detail here. After tilting and welding, the semi-finished H-beam can be straightened.

[0052] When the semi-finished H-beam needs to be straightened after welding, it is flipped over to be in an "H"-shaped, transverse position. Then, the piston rod of the fourth main hydraulic cylinder 68 is extended, using the fourth main support roller 70 and the fourth driven support roller 69 to lift the semi-finished H-beam. Simultaneously, the piston rods of the third hydraulic cylinder 57, the second rear hydraulic cylinder 50, and the second front hydraulic cylinder 41 are extended, so that the highest point of the outer circumference of the third support roller 561, the second rear support roller 48, and the second front support roller 43 aligns with the fourth main support roller 70 and the fourth driven support roller 69. The highest point of the outer circumference of the idler roller 69 is at the same height. Then, the No. 4 left reduction motor 82, the No. 4 right reduction motor 84, and the No. 2 rear reduction motor 49 are controlled to rotate, realizing the forward conveying of the semi-finished H-beam. When the bottom flange of the semi-finished H-beam is completely separated from the No. 4 main idler roller 70 and the No. 4 auxiliary idler roller 69, and comes into contact with the outer circumference of the No. 2 front idler roller 43 and the No. 2 rear idler roller 48, the No. 4 left reduction motor 82, the No. 4 right reduction motor 84, and the No. 2 rear reduction motor 49 are controlled to stop rotating, and the No. 2 main electric push rod 35 is controlled to extend appropriately. The push rod is retracted, and the distance between the second left sliding seat 22 and the second right sliding seat 23 is adjusted via the second connecting rod 25. Simultaneously, the second main hydraulic cylinder 28 and the second auxiliary hydraulic cylinder 33 are extended, thus positioning the second clamping plate 26 vertically and causing the second auxiliary roller 32 to protrude from the upper surface of the clamping plate 26. This allows the second auxiliary rollers 32 on both sides of the main frame 1 to clamp the left and right edges of the upper and lower flanges of the semi-finished H-beam, thereby positioning and guiding the semi-finished H-beam. Subsequently, the controller 85 corrects the distance measuring sensor... 54 automatically detects the distance between the lower flanges, thereby extending and retracting the corresponding upper hydraulic cylinder 52 and lower hydraulic cylinder 51, and using the corresponding second extrusion roller 53 to extrude the semi-finished H-beam. During this process, the second rear reduction motor 49 can be controlled to rotate, thereby dragging the semi-finished H-beam back and forth, facilitating extrusion and correction of different parts. After complete correction, the second rear reduction motor 49 is controlled to drag the H-beam forward using the second rear roller 48, thus completely completing the production and processing of the H-beam.

[0053] The above description represents a preferred embodiment of the present invention. For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of the present invention, based on the teachings of the present invention, still fall within the protection scope of the present invention.

Claims

1. An automatic production line for H-beams, comprising a main frame (1), a front processing area (2), a rear processing area (3), an upper processing area (4), a front spot welding section (5), a rear spot welding section (6), a processing section (7), a limiting section (8), a flipping section (9), a first support frame (10), a first left motor (11), a first right motor (12), a first upper lifting frame (13), a first lower lifting frame (14), a first servo motor (15), a first gear (16), a first left slider (17), a first right slider (18), a first rack (19), and a spot welding gun (20), characterized in that: The main frame (1) is equipped with a front processing area (2) and a rear processing area (3) from front to back, and an upper processing area (4) is installed on the upper part. The front processing area (2) is provided with a front spot welding part (5) and a rear spot welding part (6), and has three or more processing parts (7) in the middle. The rear processing area (3) is provided with a limiting part (8) at the front and a flipping part (9) at the rear. The front spot welding part (5) and the rear spot welding part (6) both include a first support frame (10). The two first support frames (10) are fixed at the front and middle of the main frame (1) respectively. The top of the two first support frames (10) are respectively fixed with a vertical first left motor (11) and a first right motor (12) from left to right, and are connected to a horizontal first upper lifting frame from top to bottom. (13) and the first lower lifting frame (14), the first upper lifting frame (13) and the first lower lifting frame (14) are respectively fixed with vertical first servo motors (15), the shafts of each first servo motor (15) are respectively fixed with first gears (16), the left parts of the first upper lifting frame (13) and the first lower lifting frame (14) are respectively slidably connected to the horizontal first left slider (17), the right parts of the first upper lifting frame (13) and the first lower lifting frame (14) are respectively slidably connected to the horizontal first right slider (18), the first left slider (17) and the first right slider (18) are respectively fixed with horizontal first racks (19), the first left slider (17) and the first right slider (18) are respectively equipped with spot welding guns (20); The processing section (7) includes a second support base (21), a second left sliding base (22), a second right sliding base (23), a second push base (24), a second connecting rod (25), a second clamping plate (26), a support bar (27), a second main hydraulic cylinder (28), a second front idler roller frame (29), a second rear idler roller frame (30), a second main idler roller (31), a second auxiliary idler roller (32), a second auxiliary hydraulic cylinder (33), and a straightening section (34). The front of the main frame (1) is fixed with... The second support base (21) has a second left sliding base (22) and a second right sliding base (23) slidably connected from left to right at its front part, and a second push base (24) slidably connected from front to back at its front middle part. The second left sliding base (22) and the second right sliding base (23) are respectively hinged to a second horizontal connecting rod (25). The rear part of the second connecting rod (25) is hinged to the second push base (24). The second left sliding base (22) and the second right sliding base (23) are... The upper part of the seat (23) is hinged with a horizontal second clamping plate (26). The top of the second clamping plate (26) is fixed with a horizontal support bar (27) in the front-back direction near the front middle of the second support seat (21). The middle parts of the second left sliding seat (22) and the second right sliding seat (23) are respectively hinged with a second main hydraulic cylinder (28). The piston rod of the second main hydraulic cylinder (28) is hinged to the second clamping plate (26) directly above it. The lower front part of the second clamping plate (26) is hinged with a horizontal support bar. The second front idler frame (29) is hinged to the lower rear part with a horizontal second rear idler frame (30). The second front idler frame (29) and the second rear idler frame (30) are respectively rotatably connected to the horizontal second main idler (31) and the second auxiliary idler (32). The second rear idler frame (30) is hinged to the second auxiliary hydraulic cylinder (33). The piston rod of the second auxiliary hydraulic cylinder (33) is hinged to the second front idler frame (29). The second support seat (21) is equipped with a correction part (34). A horizontal second main electric push rod (35) is fixed to the rear top of the second support base (21). The front end of the push rod (35) is fixed to the rear end of the second push base (24). A horizontal second transmission shaft (36) is rotatably connected to the lower front and lower rear of the second clamping plate (26). A second main gear (37) is coaxially fixed to the second transmission shaft (36). A second driven gear (38) is coaxially fixed to the second main roller (31). A horizontal second front reduction motor (39) is fixed to the middle bottom of the second clamping plate (26). The rotating shaft of the second front reduction motor (39) is synchronously driven by the second transmission shaft (36) at the front and rear through the meshing of the synchronous belt and synchronous pulley. A vertical second front support is fixed to the top front of the second support base (21). The support frame (40) and the second front hydraulic cylinder (41) are connected to the vertical second front lifting frame (42) by sliding the second front support frame (40) up and down. The front and rear parts of the second front lifting frame (42) are respectively connected to the horizontal second front roller (43), and the upper bottom end is fixed to the top of the piston rod of the second front hydraulic cylinder (41). When the piston rod of the second front hydraulic cylinder (41) extends and retracts, it can drive the second front lifting frame (42) to slide up and down along the second front support frame (40). The second left sliding seat (22) and the second right sliding seat (23) can measure the horizontal distance between each other through the distance measuring sensor. The second clamping plate (26) can measure its posture through the tilt angle sensor. The second front roller frame (29) and the second rear roller frame (30) can measure their posture through the tilt angle sensor.

2. The automatic production line for H-beams according to claim 1, characterized in that: The shafts of the left motor (11) and the right motor (12) are interlocked with the upper part of the support frame (10). The shafts of the left motor (11) and the right motor (12) are rotatably connected to the bottom of the support frame (10). The shaft of the left motor (11) is threadedly connected to the lower lifting frame (14) and interlocked with the upper lifting frame (13). The shaft of the right motor (12) is threadedly connected to the upper lifting frame (13). Connected and interlocked with the first lower lifting frame (14), the first servo motor (15) is fixed to the back-to-back end faces of the first upper lifting frame (13) and the first lower lifting frame (14). The first rack (19) of the first left slider (17) and the first rack (19) of the first right slider (18) are arranged symmetrically with respect to the first servo motor (15) and mesh with the first gear (16). The head of the spot welding gun (20) of the first left slider (17) and the first right slider (18) The head of the spot welding torch (20) is positioned outward relative to the first servo motor (15). The head of the spot welding torch (20) is located in the adjacent space of the first upper lifting frame (13) and the first lower lifting frame (14). When the first left motor (11) is energized and rotates, it can drive the first lower lifting frame (14) to slide up and down along the first support frame (10). When the first right motor (12) is energized and rotates, it can drive the first upper lifting frame (13) to slide up and down along the first support frame (10). When the No. 1 servo motor (15) is powered on and rotates, it can drive the No. 1 left slider (17) and the No. 1 right slider (18) to move closer to each other and further away from each other through the No. 1 gear (16) and the No. 1 rack (19). The No. 1 upper lifting frame (13) and the No. 1 lower lifting frame (14) can measure the left and right horizontal distance between the No. 1 left slider (17) and the No. 1 right slider (18) through the distance measuring sensor, and measure the vertical distance between each other and between each other and the No. 1 support frame (10) through the distance measuring sensor.

3. The automatic production line for H-beams according to claim 2, characterized in that: The correction section (34) includes a second rear support frame (44), a second rear lifting frame (45), a second upper lifting frame (46), a second lower lifting frame (47), a second rear idler roller (48), a second rear reduction motor (49), a second rear hydraulic cylinder (50), a second lower hydraulic cylinder (51), a second upper hydraulic cylinder (52), and a second compression idler roller (53). The second support base (21) has a vertical second rear support frame (44) fixed at the top rear. The second rear support frame (44) has a horizontal second rear lifting frame (45) slidably connected to the front of the second rear support frame (44), and the rear has a horizontal second upper lifting frame (46) and a second lower lifting frame (47) slidably connected from top to bottom. The second rear lifting frame (45) has a horizontal second rear idler roller (48) rotatably connected to both the front and rear ends, and a horizontal second rear idler roller (48) is fixed to the left. The geared motor (49) has its shaft meshing with two rear rollers (48) via spur gears. The rear of the rear support frame (44) is hinged with a rear hydraulic cylinder (50). The piston rod of the rear hydraulic cylinder (50) is hinged with the rear lifting frame (45). The rear of the support base (21) is hinged with a lower hydraulic cylinder (51). The piston rod of the lower hydraulic cylinder (51) is hinged with the lower lifting frame (47). The upper part of the rear support frame (44) is hinged with an upper hydraulic cylinder (52). The piston rod of the upper hydraulic cylinder (52) is hinged with the upper lifting frame (46). The adjacent parts of the lower lifting frame (47) and the upper lifting frame (46) are rotatably connected with two horizontal compression rollers (53). When the second main electric push rod (35) is energized and extends, it can drive the second push seat (24) to slide back and forth. When the second push seat (24) slides back and forth, it can drive the second left sliding seat (22) and the second right sliding seat (23) to slide left and right along the second support seat (21) to move away from each other and move closer to each other through the second connecting rod (25). When the second main hydraulic cylinder (28) extends and retracts its piston rod, it can drive the second clamping plate (26) to swing left and right. When the second auxiliary hydraulic cylinder (33) extends and retracts its piston rod, it can drive the second front roller frame (29) and the second rear roller frame (30) to swing back and forth with opening and closing relative to each other. When the second front roller frame (29) and the second rear roller frame (30) swing back and forth with opening relative to each other, it can make the second driven gear (38) and the second main gear (37) move together. When the No. 2 front idler frame (29) and the No. 2 rear idler frame (30) retract and swing back and forth, the No. 2 driven gear (38) and the No. 2 main gear (37) can disengage. When the No. 2 driven gear (38) and the No. 2 main gear (37) are engaged, the outer circumferential wall of the No. 2 main idler roller (31) protrudes from the top surface of the No. 2 clamping plate (26). When the No. 2 driven gear (38) and the No. 2 main gear (37) are disengaged, the outer circumferential wall of the No. 2 auxiliary idler roller (32) can protrude from the top surface of the No. 2 clamping plate (26). The outer circumferential walls of the No. 2 main idler roller (31) and the No. 2 auxiliary idler roller (32) can only alternately protrude from the top surface of the No. 2 clamping plate (26). The outer circumferential walls of the No. 2 main idler roller (31) and the No. 2 auxiliary idler roller (32) can all be located below the top surface of the No. 2 clamping plate (26). The second rear idler roller (48) rotates at the same speed. When the piston rod of the second rear hydraulic cylinder (50) extends and retracts, it can drive the second rear lifting frame (45) to slide up and down along the second rear support frame (44). The second rear lifting frame (45) can measure the vertical distance between the bottom of the second rear support frame (44) below it through a distance measuring sensor. When the piston rod of the second lower hydraulic cylinder (51) extends and retracts, it can drive the second lower lifting frame (47) to slide up and down along the second rear support frame (44). The second lower lifting frame (47) can measure its vertical distance between the bottom of the second rear support frame (44) below it through a distance measuring sensor. The vertical distance between the bottom of the second rear support frame (44) is measured by the piston rod of the second upper hydraulic cylinder (52). When the piston rod of the second upper hydraulic cylinder (52) is extended and retracted, it can drive the second upper lifting frame (46) to slide up and down along the second rear support frame (44). The second upper lifting frame (46) can measure the vertical distance between the top of the second rear support frame (44) above it through the distance measuring sensor. The second rear support frame (44) has multiple sets of vertical correction distance measuring sensors (54) fixed at the top of the inner wall of the second rear support frame (44). The correction distance measuring sensor (54) can measure the vertical distance between the obstructions below it.

4. The automatic production line for H-beams according to claim 3, characterized in that: The limiting part (8) includes a third support frame (55), a third lifting frame (56), a third hydraulic cylinder (57), a third idler roller (561), a third baffle (58), a third upper rack (59), a third transmission shaft (60), a third large gear (61), a third small gear (62), a third electric push rod (63), and a third lower rack (64). The main frame (1) has a vertical third support frame (55) fixed at the rear. The front of the third support frame (55) slides up and down. A horizontal No. 3 lifting frame (56) is connected, and a vertical No. 3 hydraulic cylinder (57) is fixed at the top front. The No. 3 lifting frame (56) is rotatably connected to a horizontal No. 3 roller (561). The No. 3 support frame (55) is slidably connected to two vertical No. 3 baffles (58) at the rear left and right. The rear ends of the two No. 3 baffles (58) are respectively fixed with horizontal No. 3 upper racks (59). The left and right sides of the No. 3 support frame (55) are each rotatably connected to a vertical No. 3 drive shaft (60). The upper part of the No. 3 drive shaft (60) is coaxially fixed with a No. 3 large gear (61), and the bottom is coaxially fixed with a No. 3 small gear (62). The two No. 3 large gears (61) mesh with the two No. 3 upper racks (59). The top left and right sides of the No. 3 support frame (55) are each fixed with a horizontal No. 3 electric push rod (63). The push rod ends of the two No. 3 electric push rods (63) are respectively fixed with a horizontal No. 3 lower rack (64). The No. 3 lower rack (64) meshes with the No. 3 small gear (62). 2) When the piston rod of the No. 3 hydraulic cylinder (57) is extended and retracted, it can drive the No. 3 lifting frame (56) to slide up and down along the No. 3 electric push rod (63). When the two No. 3 electric push rods (63) are extended and retracted, they can drive the two No. 3 baffles (58) to slide left and right away and right and close to each other along the No. 3 support frame (55) through the No. 3 lower rack (64), No. 3 small gear (62), No. 3 transmission shaft (60), No. 3 large gear (61) and No. 3 upper rack (59).

5. An automated H-beam production line according to claim 4, characterized in that: The flipping section (9) includes a fourth support base (65), a fourth rack (66), a fourth lifting frame (67), a fourth main hydraulic cylinder (68), a fourth slave roller (69), a fourth main roller (70), a fourth main reduction motor (71), a fourth sliding seat (72), a fourth servo motor (73), a fourth gear (74), and a flipping action section (75). The main frame (1) is fixed with a horizontal fourth support base (65) at the rear, and two supports are fixed at the top front and rear. A horizontal rack (66) is provided. A vertical lifting frame (67) is slidably connected to the front, middle, and rear of the support base (65). A main hydraulic cylinder (68) is hinged to the front, middle, and rear of the support base (65). The piston rod of the main hydraulic cylinder (68) is hinged to the lifting frame (67), and when the piston rod is extended or retracted, it can drive the lifting frame (67) to slide up and down along the support base (65). 67) The front and rear sections are each rotatably connected to a horizontal No. 4 slave roller (69), and the middle section is rotatably connected to a horizontal No. 4 main roller (70). A horizontal No. 4 main reduction motor (71) is fixed at the middle of the right end of the No. 4 lifting frame (67). The shaft of the No. 4 main reduction motor (71) is coaxially fixed with the right side of the No. 4 main roller (70). The No. 4 slave rollers (69) at the front and rear sections of the No. 4 lifting frame (67) and the No. 4 main roller (70) in the middle section are connected by a synchronous belt and a synchronous... The engagement of the pulleys enables synchronous rotation. The fourth support base (65) is slidably connected to the left and right sides of the front and rear parts of the fourth sliding base (72). The two fourth sliding bases (72) are respectively fixed with horizontal fourth servo motors (73). The shafts of the two fourth servo motors (73) are respectively coaxially fixed with fourth gears (74). The two fourth gears (74) are respectively engaged with the fourth rack (66). The two fourth sliding bases (72) are also equipped with a flipping action part (75). The flipping action section (75) includes a fourth left flipping frame (76), a fourth left hydraulic cylinder (77), a fourth right hydraulic cylinder (78), a fourth right flipping frame (79), a fourth auxiliary roller (80), a fourth left roller (81), a fourth left reduction motor (82), a fourth right roller (83), and a fourth right reduction motor (84). The front parts of the two fourth sliding seats (72) are respectively hinged with horizontal fourth left flipping frames (76) and respectively hinged with vertical fourth left hydraulic cylinders (74). 77) and No. 4 right hydraulic cylinder (78), the right parts of the two No. 4 left tilting frames (76) are respectively hinged with No. 4 right tilting frames (79), the No. 4 left tilting frames (76) and No. 4 right tilting frames (79) are rotatably connected to the front and rear parts of the front and rear parts of the front and rear parts of the front and rear parts of the front and rear parts of the front and rear parts of the front and rear parts of the front and rear parts of the left tilting frame (76) are rotatably connected to the horizontal No. 4 left roller (81), and No. 4 left reduction motor (82) is fixed at the front and rear parts of the left end. The No. 4 left reduction motor (81) 2) The rotating shaft is fixed to the left end of the fourth left roller (81) on the same axis. The fourth right tilting frame (79) is rotatably connected to the front and rear parts of the horizontal fourth right roller (83), and the fourth right reduction motor (84) is fixed to the front and rear parts of the right end. The rotating shaft of the fourth right reduction motor (84) is fixed to the right part of the fourth right roller (83) on the same axis. The piston rod of the fourth left hydraulic cylinder (77) is hinged to the bottom of the fourth left tilting frame (76). The fourth right hydraulic cylinder (78) The piston rod is hinged to the bottom of the fourth right tilting frame (79). When the fourth left hydraulic cylinder (77) extends and retracts the piston rod, it can drive the fourth left tilting frame (76) to swing left and right. When the fourth right hydraulic cylinder (78) extends and retracts the piston rod, it can drive the fourth right tilting frame (79) to swing left and right. When the two fourth servo motors (73) are powered on and rotate in opposite directions, they can drive the fourth sliding seat (72) to slide left and right along the fourth support seat (65) through the fourth gear (74) and the fourth rack (66).

6. An automated H-beam production line according to claim 5, characterized in that: The fourth lifting frame (67) can measure the vertical distance to the bottom of the fourth support base (65) through a distance measuring sensor. The fourth sliding base (72) can measure the horizontal distance between the left and right sides of the fourth support base (65) through a distance measuring sensor. The fourth left tilting frame (76) measures its posture through an inclination sensor. The fourth right tilting frame (79) measures its posture through an inclination sensor. The upper processing area (4) includes a controller (85), an upper rack (86), a sliding seat (87), an upper servo motor (88), a front electric push rod (89), an upper gear (90), a rear electric push rod (91), a feeding device (92), an electrical control box (93), a collecting device (94), a front lifting frame (95), a rear lifting frame (96), a lower servo motor (97), a lower gear (98), and a left sliding block (99). The fifth right slider (110) has a vertical controller (85) fixed to the upper front part of the main frame (1), and a horizontal fifth upper rack (86) fixed to the left and right sides of the top. The upper part of the main frame (1) is slidably connected to a horizontal fifth sliding seat (87). A horizontal fifth upper servo motor (88) is fixed to the left and right sides of the top of the fifth sliding seat (87), and a vertical fifth front electric push rod (89) is fixed to the front of the top. The two fifth upper servo motors (88) are connected by their rotating shafts. A No. 5 upper gear (90) is coaxially fixed. A vertical No. 5 rear electric push rod (91) is fixed to the rear top of the No. 5 sliding seat (87), and a vertical feeding device (92) is fixed to the left top. An electric control box (93) and a collecting device (94) are fixed to the right end of the No. 5 sliding seat (87). A vertical No. 5 front lifting frame (95) is slidably connected to the front of the No. 5 sliding seat (87), and a vertical No. 5 rear lifting frame (96) is slidably connected to the rear. The bottom of the lifting frame (95) is fixed to the bottom of the push rod of the No. 5 front electric push rod (89), and a vertical No. 5 lower servo motor (97) is fixed at the bottom. The shaft of the No. 5 lower servo motor (97) is coaxially fixed with two horizontal No. 5 lower gears (98). The bottom of the No. 5 front lifting frame (95) is slidably connected with a horizontal No. 5 left slider (99) and a No. 5 right slider (110). The bottom of the No. 5 rear lifting frame (96) is fixed to the bottom of the push rod of the No. 5 rear electric push rod (91).

7. An automated H-beam production line according to claim 6, characterized in that: When the No. 5 front electric push rod (89) extends and retracts, it can drive the No. 5 front lifting frame (95) to slide up and down along the No. 5 sliding seat (87). When the No. 5 rear electric push rod (91) extends and retracts, it can drive the No. 5 rear lifting frame (96) to slide up and down along the No. 5 sliding seat (87). When the No. 5 upper servo motor (88) is powered on and rotates in both directions, it can drive the No. 5 sliding seat (87) to slide back and forth along the main frame (1) through the No. 5 upper gear (90) and the No. 5 upper rack (86). The No. 5 front lifting frame (95) can measure its vertical distance to the obstruction below through the distance sensor. The No. 5 rear lifting frame (96) can measure its vertical distance to the obstruction below through the distance sensor. The No. 5 sliding seat (87) can measure its front and rear horizontal distances to the front and rear parts of the main frame (1) through the distance sensor. The fifth left slider (99) and the fifth right slider (110) are respectively fixed with the fifth lower rack (111). The fifth left slider (99) and the fifth right slider (110) are respectively fixed with the fifth main feed pipe (112), the fifth main welding gun (113) and the fifth main recovery pipe (114) from front to back. The bottom of the fifth rear lifting frame (96) is respectively fixed with the fifth auxiliary feed pipe (115), the fifth auxiliary welding gun (116) and the fifth... The No. 5 auxiliary recovery pipe (117), the No. 5 lower rack (111) of the No. 5 left slider (99) and the No. 5 lower rack (111) of the No. 5 right slider (110) are arranged symmetrically with respect to the No. 5 lower servo motor (97) from a top-view angle and mesh with the two No. 5 lower gears (98). The heads of the No. 5 main feed pipe (112), the No. 5 main welding gun (113) and the No. 5 main recovery pipe (114) of the No. 5 left slider (99) are connected to the No. 5 right slider (110). The heads of the No. 5 main feed pipe (112), the No. 5 main welding gun (113), and the No. 5 main recovery pipe (114) are arranged downward and outward relative to the No. 5 lower servo motor (97). When the No. 5 lower servo motor (97) rotates forward and backward, it can drive the No. 5 left slider (99) and the No. 5 right slider (110) to slide sideways closer to each other and sideways further away from each other along the No. 5 front lifting frame (95) via the No. 5 lower rack (111). The left slider (99) and right slider (110) can measure the horizontal distance between them via a distance sensor. The main feed pipe (112) and auxiliary feed pipe (115) are connected to the feeding device (92). The main welding gun (113) and auxiliary welding gun (116) are electrically connected to the control box (93). The main recovery pipe (114) and auxiliary recovery pipe (117) are connected to the collection device (94).

8. An automated H-beam production line according to claim 7, characterized in that: The spot welding torch (20), the No. 5 main electric welding torch (113), and the No. 5 auxiliary electric welding torch (116) track and identify weld seams using a laser weld seam sensor. The following components are also present: a left motor (11), a right motor (12), a servo motor (15), a spot welding torch (20), a main electric push rod (35), a front reduction motor (39), a rear reduction motor (49), a correction distance sensor (54), an electric push rod (63), a main reduction motor (71), a servo motor (73), a left reduction motor (82), a right reduction motor (84), a controller (85), an upper servo motor (88), a front electric push rod (89), a rear electric push rod (91), a feeding device (92), an electrical control box (93), a collecting device (94), a lower servo motor (97), a distance sensor, an inclination sensor, and... The laser weld seam sensor is electrically connected and electrically controlled by the controller (85). The spot welding gun (20) is a gas shielded welding gun with a wire feeder and is connected to an external gas shielded welding machine. The No. 5 main electric welding gun (113) and the No. 5 auxiliary electric welding gun (116) are connected to a dual-arc dual-wire digital welding system. The controller (85) controls the external gas shielded welding machine and the dual-arc dual-wire digital welding system. The correction distance sensor (54) and the distance sensor are laser distance sensors. The No. 2 main hydraulic cylinder (28), the No. 2 auxiliary hydraulic cylinder (33), the No. 2 front hydraulic cylinder (41), the No. 2 rear hydraulic cylinder (50), the No. 2 lower hydraulic cylinder (51), the No. 2 upper hydraulic cylinder (52), the No. 4 main hydraulic cylinder (68), the No. 4 left hydraulic cylinder (77), and the No. 4 right hydraulic cylinder (78) are connected to an external hydraulic transmission system. The controller (85) electrically controls the external hydraulic control system.

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