An assembling machine for H-shaped steel

Abstract

The application discloses a assembling machine for H-shaped steel and relates to the field of H-shaped steel production equipment.The assembling machine comprises a rack, a plurality of conveying rollers rotatably connected to the rack, a plurality of rotating seats fixed on the rack, a turnover mechanism arranged on the rotating seat and used for positioning and overturning a wing plate, and a centering mechanism arranged on the rack and used for centering and positioning a web plate on the conveying roller.The centering mechanism is arranged to stably place a prefabricated steel web plate on a conveying roller, and then a plurality of positioning rollers are synchronously moved at a uniform speed from both sides to the center, so that the progressive centering operation of the web plate is realized, the web plate is accurately guided and stably fixed on the center line of the conveying roller, and the position deviation is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of H-beam production equipment, specifically to an assembly machine for H-beams. Background Technology

[0002] H-beams are profiles with a cross-section resembling the capital letter H. They have strong bending resistance in all directions, are easy to install, and save costs, and are now widely used.

[0003] The H-beam assembly machine first feeds the lower flange into the main unit via a conveyor roller and positions it using a hydraulic clamping mechanism. Then, the web plate is hoisted onto the surface of the lower flange plate and its verticality and centering are adjusted by lateral rollers. Next, the upper flange plate is placed on top of the web plate and the overall assembly is clamped by the upper clamping cylinder. Finally, the connection between the flange plate and the web plate is spot welded at intervals by a welding trolley, temporarily fixing the three steel plates and sending them out of the equipment. This efficiently completes the automated assembly process from loose parts to H-beam components.

[0004] Currently, when using the assembly machine, workers need to use an overhead crane to hoist the flanges, webs, and the T-shaped intermediate body welded from the flanges and webs into place. Because the position of the steel plates, especially the webs, is prone to shifting when they are hoisted and dropped, workers need to manually center and calibrate them, which greatly reduces the efficiency of H-beam assembly and affects production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an assembly machine for H-beams to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an assembly machine for H-beams, comprising a frame, and a plurality of conveying rollers rotatably connected to the frame, and further comprising: A cylinder is fixed to a frame, and a pulley is fixed to the output end of the cylinder. Several rotating seats are fixed to the frame, and each rotating seat is equipped with a flipping mechanism. The flipping mechanism is used to position and flip the wingplate. A centering mechanism is provided on the frame, which is used to center and position the web plate on the conveyor roller.

[0007] In an optional embodiment, the flipping mechanism includes: a movable plate rotatably connected to the rotating seat, and an electric push rod rotatably connected to the frame via a hinged seat. The output end of the electric push rod is rotatably connected to the movable plate, and a conveying roller is rotatably connected to the movable plate via a bearing seat. At least two positioning plates are fixed on the movable plate, and a lead screw is rotatably connected to the movable plate via a bearing seat. A threaded sleeve that is slidably connected to the movable plate is threaded onto the lead screw. A drive motor is fixed on the movable plate, and the output shaft of the drive motor and the lead screw are driven by meshing two spur gears. A pressure roller is rotatably connected to the threaded sleeve.

[0008] In an optional embodiment, the centering mechanism includes: a mounting frame fixed on the frame, a servo motor fixed on the mounting frame, a transmission wheel fixed on the output shaft of the servo motor, a guide rod fixed on the mounting frame via a mounting seat, a transmission block slidably passing through the guide rod, a bent connecting rod hinged between the transmission wheel and the transmission block, a rotating rod rotatably connected on the mounting frame, a mounting plate fixed at one end of the rotating rod, a straight connecting rod hinged between the mounting plate and the transmission block, a swing plate fixed at one end of the rotating rod, a shaft fixed on the swing plate, a positioning roller rotatably connected to the shaft, and a pressure plate mechanism provided on the positioning roller for pressing and positioning the web plate.

[0009] In an optional embodiment, the pressure plate mechanism includes: a mounting column fixed on a shaft, and a channel is provided on the mounting column. A support rod is slidably connected to the channel. An adjustment component is provided on the mounting column to adjust the position of the support rod. One end of the support rod slides through a through hole through a rod body, and a ball is fixed to one end of the rod body. A connecting ring is fastened to the rod body. A spring is sleeved on the rod body, and one end of the spring is fixed to the connecting ring, while the other end of the spring is fixed to the support rod.

[0010] In an optional embodiment, the adjustment component includes: a groove communicating with the channel is provided on the mounting post, and a threaded hole is provided on the mounting post; a threaded rod is threadedly connected to the threaded hole, and one end of the threaded rod is rotatably connected to a positioning post that is slidably connected to the groove; and a positioning hole adapted to the positioning post is provided on the support rod.

[0011] In an optional embodiment, the movable plate is provided with a guide groove, and a guide block that is slidably connected to the guide groove is fixed on the threaded sleeve.

[0012] In an optional embodiment, the pressure roller has a trapezoidal cross-section, and the diameter of the end of the pressure roller away from the wire sleeve is larger than the diameter of the end of the pressure roller closer to the wire sleeve.

[0013] In an optional embodiment, a protective shell is fixed to the movable plate, and the spur gear is located inside the protective shell.

[0014] In an optional embodiment, a limiting ring is fixed at one end of the rod, and the diameter of the limiting ring is larger than the diameter of the rod. A limiting plate is fixed inside the through hole, and a sliding groove is provided on the rod to slide with the limiting plate.

[0015] In an optional embodiment, the groove has a depth greater than the length of the positioning post, and the central axis of the positioning post is collinear with the central axis of the groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the setting of a centering mechanism, smoothly places the prefabricated steel web plate on the conveyor roller conveyor. Subsequently, multiple positioning rollers move synchronously from both sides inward at a uniform speed to achieve a gradual centering operation of the web plate. This ensures that the web plate is accurately guided and stably fixed on the center line of the conveyor roller, effectively avoiding positional deviation and significantly reducing the time and workload required for subsequent adjustment and calibration of the web plate position. As a result, it significantly improves the overall work efficiency of the automated assembly production process of H-beams.

[0017] This invention utilizes a pressure plate mechanism that works in conjunction with positioning rollers. While the positioning rollers center and clamp the wing plate, they also apply a stable downward vertical pressure to the wing plate. This additional pressure makes the constraint force on the wing plate more comprehensive and robust during clamping, thereby significantly enhancing the stability and reliability of the entire positioning system. It effectively suppresses any slight shaking or displacement tendency that may occur in the wing plate during processing or assembly due to external forces or its own stress. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 for Figure 2 Enlarged schematic diagram of the structure of region A in the middle; Figure 4 for Figure 2 Enlarged schematic diagram of the structure of region B in the middle; Figure 5 This is a top view of the structure of the present invention; Figure 6 for Figure 5 Enlarged schematic diagram of the structure of region C in the middle; Figure 7 This is a schematic diagram of the mounting bracket structure of the present invention; Figure 8 for Figure 7 Enlarged schematic diagram of the structure of region D in the middle; Figure 9 This is a schematic diagram of the pressure plate mechanism of the present invention; Figure 10 This is a schematic diagram of the centering mechanism structure of the present invention; Figure 11 for Figure 10 Enlarged schematic diagram of the structure of region E in the middle; Figure 12 This is a schematic diagram of the centering mechanism of the present invention viewed from below.

[0019] In the diagram: 1. Frame; 2. Conveyor roller; 3. Cylinder; 4. Pulley; 5. Rotating seat; 6. Tilting mechanism; 7. Centering mechanism; 8. Movable plate; 9. Electric push rod; 10. Conveyor roller; 11. Positioning plate; 12. Lead screw; 13. Lead sleeve; 14. Drive motor; 15. Spur gear; 16. Pressure roller; 17. Mounting frame; 18. Servo motor; 19. Transmission wheel; 20. Mounting seat; 21. Guide rod; 22. Transmission block; 23. Bending connecting rod; 24. Rotating rod; 25. Mounting plate; 26. Straight connecting rod; 27. Swing plate; 28. Shaft; 29. ​​Positioning roller; 30. Pressure plate mechanism; 31. Mounting column; 32. Channel; 33. Support rod; 34. Adjustment component; 35. Through hole; 36. Rod body; 37. Ball; 38. Connecting ring; 39. Spring; 40. Groove; 41. Threaded hole; 42. Threaded rod; 43. Positioning column; 44. Positioning hole; 45. Guide groove; 46. Guide block; 47. Protective shell; 48. Limiting ring; 49. Limiting plate; 50. Slide groove. Detailed Implementation

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

[0021] Example 1: Please refer to Figures 1-12 The figure shows an assembly machine for H-beams, including a frame 1 and several conveying rollers 2 rotatably connected to the frame 1; it also includes: a cylinder 3 fixed on the frame 1, with a pulley 4 fixed to the output end of the cylinder 3; several rotating seats 5 fixed on the frame 1, with a flipping mechanism 6 provided on the rotating seats 5, which is used to position and flip the flanges; and a centering mechanism 7 provided on the frame 1, which is used to center and position the web on the conveying rollers 2.

[0022] In this scheme, the web plate is placed on the conveyor roller 2, and then the centering mechanism 7 is used to center and position the web plate at the center of the conveyor roller 2. After the centering and positioning of the web plate is completed, the centering mechanism 7 releases the positioning of the web plate, and the cylinder 3 lifts the web plate to a suitable height. The two wing plates are then placed on the two flipping mechanisms 6 respectively. The flipping mechanisms 6 flip the wing plates and position them at the same time. At this time, the two wing plates and the web plate are assembled and connected.

[0023] It should be noted that when assembling the two web plates and wing plates, in order to enhance the stability of the web plates and wing plates, the spheres 37 can be used to clamp the two wing plates through the centering mechanism 7, thereby improving the assembly stability of the web plates and wing plates.

[0024] The flipping mechanism 6 includes: a movable plate 8 rotatably connected to a rotating base 5; an electric push rod 9 rotatably connected to a frame 1 via a hinged seat; the output end of the electric push rod 9 rotatably connected to the movable plate 8; a conveying roller 10 rotatably connected to the movable plate 8 via a bearing seat; at least two positioning plates 11 fixed on the movable plate 8; a lead screw 12 rotatably connected to the movable plate 8 via a bearing seat; a threaded sleeve 13 slidably connected to the lead screw 12; a drive motor 14 fixed on the movable plate 8; the output shaft of the drive motor 14 meshing with the lead screw 12 via two spur gears 15; a pressure roller 16 rotatably connected to the threaded sleeve 13; and a protective shell 47 fixed on the movable plate 8, with the spur gears 15 located inside the protective shell 47. The addition of the protective shell 47 provides protection for the spur gears 15, preventing jamming during transmission.

[0025] The movable plate 8 has a guide groove 45, and the threaded sleeve 13 is fixed with a guide block 46 that is slidably connected to the guide groove 45. By setting the guide block 46 to slide in the guide groove 45, it can not only guide the threaded sleeve 13, but also improve the stability of the guide block 46 when sliding.

[0026] It should be noted that the cross-section of the pressure roller 16 is trapezoidal, and the diameter of the end of the pressure roller 16 away from the wire sleeve 13 is larger than that of the end of the pressure roller 16 near the wire sleeve 13. By setting the shape of the pressure roller 16, it is possible to prevent the wing plate from falling off when it is flipped. By utilizing the inclined surface characteristics of the pressure roller 16, not only is it ensured that the wing plate maintains relative stability during transmission, but it can also effectively enhance the stability of the wing plate positioning.

[0027] In this scheme, the operator places the wing plate on the conveyor roller 2 and ensures that the wing plate is positioned between the positioning plate 11 and the pressure roller 16. Driven by the drive motor 14, the spur gear 15 meshes and drives the lead screw 12 to rotate. The threaded transmission between the lead screw 12 and the lead sleeve 13 causes the pressure roller 16 to move horizontally under pressure until the pressure roller 16 clamps the wing plate between the positioning plates 11, thus completing the positioning of the wing plate. Driven by the electric push rod 9, the movable plate 8 is rotated along the axis of the rotating seat 5 under pressure until the movable plate 8 is adjusted to be perpendicular to the conveyor roller 2.

[0028] It should also be noted that the flipping mechanism 6 enables efficient and stable precise positioning of the wing plate and smooth flipping operation. While reliably positioning the wing plate, it effectively prevents accidental slippage or displacement during operation. This not only significantly improves the safety and controllability of the operation process, but also further enhances the overall stability and structural reliability of the wing plate and web plate in the splicing and positioning process.

[0029] Example 2: Please refer to Figures 7-12 This embodiment further explains the first embodiment, the difference being that it discloses a method for positioning the web of the H-beam, so that the web is centered on the conveyor roller 2.

[0030] Specifically, the centering mechanism 7 includes: a mounting frame 17 fixed on the frame 1, a servo motor 18 fixed on the mounting frame 17, a transmission wheel 19 fixed on the output shaft of the servo motor 18, a guide rod 21 fixed on the mounting frame 17 via a mounting base 20, a transmission block 22 slidingly passing through the guide rod 21, a bent connecting rod 23 hinged between the transmission wheel 19 and the transmission block 22, a rotating rod 24 rotatably connected on the mounting frame 17, a mounting plate 25 fixed at one end of the rotating rod 24, a straight connecting rod 26 hinged between the mounting plate 25 and the transmission block 22, a swing plate 27 fixed at one end of the rotating rod 24, a shaft 28 fixed on the swing plate 27, a positioning roller 29 rotatably connected on the shaft 28, and a pressure plate mechanism 30 provided on the positioning roller 29, which is used to press and position the web plate.

[0031] When multiple positioning rollers 29 have completed clamping and positioning of the web plate, the rotation characteristics of the positioning rollers 29 and the shaft 28 can be utilized to ensure that the positioning rollers 29 remain rotatable after the web plate is positioned, thus ensuring relatively stable web plate transmission.

[0032] It should be noted that by setting the centering mechanism 7, the prefabricated steel web is placed smoothly on the conveyor roller 2. Then, multiple positioning rollers 29 move inward from both sides at a uniform speed to achieve a gradual centering operation of the web. This ensures that the web is accurately guided and stably fixed on the center line of the conveyor roller 2, effectively avoiding positional deviation and greatly reducing the time and workload required for subsequent adjustment and calibration of the web position. This significantly improves the overall work efficiency of the automated assembly production process of H-beams.

[0033] In this scheme, the web plate is centered, calibrated, and positioned. Driven by the servo motor 18, the transmission wheel 19 rotates. Utilizing the transmission action of the bent connecting rod 23, the transmission block 22 moves along the guide rod 21 after being subjected to force. In conjunction with the transmission action of the straight connecting rod 26, the mounting plate 25 is rotated, and the swing plate 27 rotates synchronously. This allows the positioning roller 29 to be centered, calibrated, and positioned with the web plate.

[0034] Furthermore, the pressure plate mechanism 30 includes: a mounting column 31 fixed on the shaft 28, and a channel 32 is provided on the mounting column 31. A support rod 33 is slidably connected to the channel 32. An adjustment component 34 is provided on the mounting column 31. The position of the support rod 33 is adjusted by the adjustment component 34. One end of the support rod 33 slides through a through hole 35 and a rod body 36. A ball 37 is fixed to one end of the rod body 36. A connecting ring 38 is fastened to the rod body 36. A spring 39 is sleeved on the rod body 36. One end of the spring 39 is fixed to the connecting ring 38, and the other end of the spring 39 is fixed to the support rod 33.

[0035] The stroke of the ball 37 is limited to vertical up and down movement. When the positioning roller 29 clamps and positions the wing plate, the ball 37 applies pressure to the top surface of the wing plate, which further enhances the stability of the wing plate after positioning and prevents the wing plate from shifting, thus effectively enhancing the stability of the wing plate in center positioning.

[0036] It should be noted that by working in conjunction with the positioning roller 29, the pressure plate mechanism 30 can apply a stable downward vertical pressure to the wing plate while the positioning roller 29 centers and clamps the wing plate. This additional pressure makes the constraint force on the wing plate more comprehensive and firm during the clamping process, thereby significantly enhancing the stability and reliability of the entire positioning system. It effectively suppresses the slight shaking or displacement tendency that may be caused by external force or its own stress during the processing or assembly of the wing plate, fundamentally avoiding the decrease in accuracy or assembly quality problems that may be caused by the wing plate position deviation, and ensuring the accuracy and smoothness of subsequent operations.

[0037] The adjustment assembly 34 includes: a groove 40 on the mounting post 31 that communicates with the channel 32, and a threaded hole 41 on the mounting post 31. A threaded rod 42 is threadedly connected to the threaded hole 41, and one end of the threaded rod 42 is rotatably connected to a positioning post 43 that is slidably connected to the groove 40. A positioning hole 44 on the support rod 33 is adapted to the positioning post 43. A limit ring 48 is fixed at one end of the rod body 36, and the diameter of the limit ring 48 is larger than the diameter of the rod body 36. A limit plate 49 is fixed in the through hole 35, and a sliding groove 50 is provided on the rod body 36 that slides with the limit plate 49. Through the setting of the limit plate 49 and the sliding groove 50, it is ensured that the rod body 36 and the ball 37 are always in a vertical up-and-down movement state, and the ball 37 is prevented from shifting or shaking.

[0038] Meanwhile, the depth of the groove 40 is greater than the length of the positioning post 43, and the central axis of the positioning post 43 is collinear with the central axis of the groove 40. The groove 40 is designed to ensure that the positioning post 43 can be completely retracted inside the groove 40 when it is not inserted into the positioning hole 44.

[0039] In this scheme, when the positioning shaft positions the web plate, the curved surface of the ball 37 contacts the web plate, thereby driving the rod 36 to move along the through hole 35. At this time, the spring 39 is in a compressed state until the positioning shaft contacts and positions the web plate, causing the curved surface of the ball 37 to apply pressure to the top surface of the web plate, thereby completing the clamping and positioning of the web plate.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An assembly machine for H-beams, comprising a frame (1) and a plurality of conveying rollers (2) rotatably connected to the frame (1). Its features are, Also includes: A cylinder (3) is fixed on the frame (1), and a pulley (4) is fixed to the output end of the cylinder (3). Several rotating seats (5) are fixed on the frame (1), and a flipping mechanism (6) is provided on the rotating seats (5). The flipping mechanism (6) is used to position and flip the wing plate. A centering mechanism (7) is provided on the frame (1) for centering and positioning the web plate on the conveyor roller (2).

2. The assembly machine for H-beams according to claim 1, characterized in that: The flipping mechanism (6) includes: a movable plate (8) rotatably connected to the rotating seat (5), and an electric push rod (9) rotatably connected to the frame (1) via a hinge seat. The output end of the electric push rod (9) is rotatably connected to the movable plate (8), and a conveying roller (10) is rotatably connected to the movable plate (8) via a bearing seat. At least two positioning plates (11) are fixed on the movable plate (8), and a lead screw (12) is rotatably connected to the movable plate (8) via a bearing seat. A threaded sleeve (13) is threadedly connected to the lead screw (12) and slidably connected to the movable plate (8). A drive motor (14) is fixed on the movable plate (8), and the output shaft of the drive motor (14) and the lead screw (12) are meshed and driven by two spur gears (15). A pressure roller (16) is rotatably connected to the threaded sleeve (13).

3. The assembly machine for H-beams according to claim 1, characterized in that: The centering mechanism (7) includes: a mounting bracket (17) fixed on the frame (1), and a servo motor (18) fixed on the mounting bracket (17). A transmission wheel (19) is fixed on the output shaft of the servo motor (18), and a guide rod (21) is fixed on the mounting bracket (17) via a mounting seat (20). A transmission block (22) slides through the guide rod (21). A bent connecting rod (23) is hinged between the transmission wheel (19) and the transmission block (22). A rotating rod (24) is rotatably connected. One end of the rotating rod (24) is fixed with a mounting plate (25), and a straight connecting rod (26) is hinged between the mounting plate (25) and the transmission block (22). One end of the rotating rod (24) is fixed with a swing plate (27), and a shaft (28) is fixed on the swing plate (27). A positioning roller (29) is rotatably connected on the shaft (28). A pressure plate mechanism (30) is provided on the positioning roller (29), and the pressure plate mechanism (30) is used to press and position the web plate.

4. The assembly machine for H-beams according to claim 3, characterized in that: The pressure plate mechanism (30) includes: a mounting column (31) fixed on a shaft (28), and a channel (32) is provided on the mounting column (31). A support rod (33) is slidably connected on the channel (32). An adjustment component (34) is provided on the mounting column (31). The position of the support rod (33) is adjusted by the adjustment component (34). One end of the support rod (33) is slidably passed through a rod body (36) through a through hole (35). A ball (37) is fixed at one end of the rod body (36). A connecting ring (38) is fastened on the rod body (36). A spring (39) is sleeved on the rod body (36). One end of the spring (39) is fixed to the connecting ring (38). The other end of the spring (39) is fixed to the support rod (33).

5. The assembly machine for H-beams according to claim 4, characterized in that: The adjustment component (34) includes: a groove (40) communicating with the channel (32) is provided on the mounting post (31), and a threaded hole (41) is provided on the mounting post (31). A threaded rod (42) is threadedly connected to the threaded hole (41), and a positioning post (43) that is rotatably connected to the groove (40) is provided at one end of the threaded rod (42). A positioning hole (44) that is adapted to the positioning post (43) is provided on the support rod (33).

6. The assembly machine for H-beams according to claim 2, characterized in that: The movable plate (8) is provided with a guide groove (45), and the threaded sleeve (13) is fixed with a guide block (46) that is slidably connected to the guide groove (45).

7. The assembly machine for H-beams according to claim 2, characterized in that: The pressure roller (16) has a trapezoidal cross-section, and the diameter of the end of the pressure roller (16) away from the wire sleeve (13) is larger than the diameter of the end of the pressure roller (16) close to the wire sleeve (13).

8. The assembly machine for H-beams according to claim 2, characterized in that: A protective shell (47) is fixed on the movable plate (8), and the spur gear (15) is located inside the protective shell (47).

9. The assembly machine for H-beams according to claim 4, characterized in that: One end of the rod (36) is fixed with a limiting ring (48), and the diameter of the limiting ring (48) is larger than the diameter of the rod (36). A limiting plate (49) is fixed inside the through hole (35), and a sliding groove (50) is provided on the rod (36) to slide with the limiting plate (49).

10. The assembly machine for H-beams according to claim 5, characterized in that: The depth of the groove (40) is greater than the length of the positioning post (43), and the central axis of the positioning post (43) is collinear with the central axis of the groove (40).

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