A conveying system and process for an H-beam assembly machine

Abstract

The application relates to the technical field of H-shaped steel assembling and welding, in particular to a conveying system for an H-shaped steel assembling machine and a process, wherein the conveying system for the H-shaped steel assembling machine comprises a feeding unit, a pre-assembling unit and a welding unit, the feeding unit, the pre-assembling unit and the welding unit are sequentially arranged along the same horizontal direction, the feeding unit conveys the wing plates and the web plate of the H-shaped steel to the pre-assembling unit, the pre-assembling unit assembles two wing plates and one web plate into an H-shaped steel and conveys the H-shaped steel to the welding unit through the feeding unit, and the welding unit welds the wing plates and the web plate together; the processing technology of synchronous assembling, conveying and welding of the application replaces the traditional mode of first assembling through large mechanical equipment and then welding through manual or automatic welding, the production time is greatly reduced, the whole process is automatically controlled, the manual participation degree is low, and the production is safer.

Description

Technical Field

[0001] This invention relates to the field of H-beam assembly and welding technology, and in particular to a conveying system and process for an H-beam assembly machine. Background Technology

[0002] As a core component of steel structure buildings, bridges, and industrial plants, the assembly accuracy and efficiency of H-beams directly affect the overall project quality and production costs. Currently, the assembly process for H-beams mostly adopts a segmented operation: after the flanges and webs are loaded, they are positioned and assembled in a fixed assembly machine using manual or semi-automatic clamps, and then transferred to the welding station.

[0003] This model has certain drawbacks. The fixture structure is fixed, and changing specifications requires stopping the machine for adjustment or even replacing parts, resulting in insufficient production line flexibility. Assembly and welding are separated, requiring manual intervention for transfer. From the completion of assembly to the entry into welding, an average of 2-3 workers are needed to participate in the alignment, inspection, and start-up. This is not only inefficient (single piece transfer time ≥ 30 seconds), but also poses safety risks in human-machine collaboration, easily causing workpiece collision damage. Summary of the Invention

[0004] In order to overcome the problems of poor equipment adaptability and insufficient stability of vertical flange conveying in the H-beam assembly process.

[0005] The technical solution of this invention is as follows: A conveying system for an H-beam assembly machine, comprising a feeding unit, a pre-assembly unit, and a welding unit. The feeding unit (generally using friction conveyor rollers in practical applications, with two sets of friction conveyor rollers forming one unit, the length covering the width of the flange and web; all friction conveyor rollers are driven by chain linkage to ensure synchronized conveying speed), the pre-assembly unit, and the welding unit are arranged sequentially along the same horizontal direction. The feeding unit conveys the flange and web of the H-beam to the pre-assembly unit (an arc-shaped transition guide plate is added at the connection between the feeding unit and the pre-assembly unit; the guide plate surface is covered with a polyurethane elastic layer to prevent edge and corner damage when the flange and web transition from horizontal conveying to pre-assembly positioning). The pre-assembly unit assembles two flanges and one web into an H-shape and conveys it to the welding unit via the feeding unit. The assembly unit welds the wing plate and the web plate together; the pre-assembly unit includes several frames arranged in an array, fixed-side assembly modules and mobile-side assembly modules installed on both sides of each frame, and a distance adjustment module installed on each frame. The mobile-side assembly module is connected to the output end of the distance adjustment module. The distance adjustment module is used to drive the mobile-side assembly module to move closer to or away from the fixed-side assembly module; the fixed-side assembly module and the mobile-side assembly module have the same structure, both including a drive box, a flipping mechanism and a lifting mechanism installed on the drive box, and a positioning mechanism and a clamping mechanism installed on the output end of the flipping mechanism. The positioning mechanism and the adjacent clamping mechanism are used to clamp the wing plate, the two positioning mechanisms are used to clamp the web plate, the flipping mechanism is used to flip the wing plate from a horizontal state to a vertical state, and the lifting mechanism is used to lift the web plate to a preset position.

[0006] Preferably, an end positioning mechanism is provided between the pre-assembly unit and the welding unit. This end positioning mechanism includes a wing plate positioner and a web plate positioner, respectively positioned in the wing plate conveying direction and the web plate conveying direction. Both the wing plate and web plate positioners are equipped with alarms to identify whether the wing plate and web plate are in place. Polyurethane buffer heads are installed at the positioning ends of the wing plate and web plate positioners to prevent impact damage to the ends of the wing plate or web plate. The alarm triggering structure is a mechanical contact type; when the end of the wing plate or web plate touches the buffer head of the positioner, the buffer head moves the trigger rod, triggering the alarm, eliminating the need for manual judgment of the positioning status.

[0007] Preferably, the pre-assembly unit also includes an auxiliary drive roller assembly mounted on the drive box. The auxiliary drive roller assembly includes a bracket mounted on the drive box, an auxiliary roller rotatably connected to the bracket, and a second driver fixedly mounted on the bracket. The output end of the second driver is connected to one end of the auxiliary roller, and the second driver is used to drive the auxiliary roller to rotate at a preset speed. The auxiliary drive roller assembly can be equipped with a lifting adjustment structure, allowing it to be adjusted upwards to fit against the surface of the wing plate during horizontal conveying, working in conjunction with the feeding unit.

[0008] Preferably, the distance adjustment module includes a first traveling power unit mounted on the frame, the output end of which is connected to the mobile side assembly module. The first traveling power unit is used to drive the mobile side assembly module to move closer to or further away from the fixed side assembly module. The lifting mechanism includes a first driver fixedly mounted on the drive box and a support roller (note that the support roller is a driven roller) mounted on the output end of the first driver. The first driver is used to drive the support roller to move vertically to a preset position.

[0009] Preferably, the flipping mechanism includes a support and a shaft seat fixedly mounted on the drive box, a flipping frame rotatably connected to the shaft seat at one end, a first cylinder rotatably connected to the other end of the flipping frame, and a first shaft column rotatably connected to the support. One end of the first shaft column is fixedly connected to the output end of the first cylinder. When the first cylinder drives the first shaft column to extend or retract, the flipping frame rotates around the shaft seat as the axis. An angle limiting block can be added at the connection between the flipping frame and the shaft seat to precisely limit the flipping angle of the flipping frame to 90°, so as to avoid excessive or insufficient flipping of the wing plate. Triangular reinforcing ribs are welded to the side wall of the flipping frame to improve the structural strength and prevent deformation during long-term flipping operations.

[0010] Preferably, the positioning mechanism includes a slide rotatably connected to the tilting frame at one end, a first positioning wheel and a second positioning wheel rotatably connected to both ends of the slide (the wheel surfaces of the first and second positioning wheels can be made of wear-resistant hardened steel with chrome plating to extend their service life; a copper bushing is added at the rotatable connection between the slide and the tilting frame to reduce rotational friction resistance and improve adjustment sensitivity), a corner seat fixedly mounted on the tilting frame, a second cylinder rotatably connected to the corner seat, and a second shaft column rotatably connected to the slide at one end. The other end of the second shaft column is connected to the output end of the second cylinder. The second cylinder drives the slide to rotate around the first positioning wheel as the axis through the second shaft column. When the slide rotates, the second positioning wheel moves closer to or further away from the edge of the web plate; The tightening mechanism includes a directional groove on the tilting frame, a fixed wheel installed at one end of the directional groove, a second traveling power unit installed inside the tilting frame, and a movable wheel slidably connected to the other end of the directional groove. The movable wheel is installed on the output end of the second traveling power unit, which drives the movable wheel to move along the directional groove (wear-resistant nylon lining strips are added to the inner wall of the directional groove to reduce wear when the movable wheel slides; the anti-slip layer of the movable wheel adopts a silicon carbide particle coating process to improve the anti-slip effect); the first positioning wheel, the fixed wheel, and the movable wheel are all on the same straight line. The second traveling power unit is used to drive the movable wheel to move closer to or away from the first positioning wheel. A limit pin is added to the output end of the second traveling power unit to prevent the movable wheel from being excessively tightened, which could cause deformation of the wing plate.

[0011] Preferably, the drive box is equipped with a lifter and a third traveling motor. The auxiliary transmission roller assembly is installed on the output end of the lifter and the third traveling motor. The third traveling motor is used to drive the auxiliary transmission roller assembly to a preset position, and the lifter is used to drive the auxiliary transmission roller assembly to move vertically. After the wing plate flips, there may be a gap between its edge and the auxiliary roller, which will not achieve the effect of friction transmission. Therefore, the height of the auxiliary roller is adjusted by the lifter to make it fit tightly against the edge of the wing plate. The third traveling motor is used to control the movement of the auxiliary roller, which can make the middle of the auxiliary roller support the wing plate, so as to avoid the wing plate being in the edge position of the auxiliary roller after flipping, which would cause excessive unbalanced pressure on the auxiliary transmission roller assembly and avoid structural deformation and damage. The design of the movable auxiliary transmission roller assembly can also make the length of the auxiliary roller smaller and the cost lower.

[0012] Preferably, a V-groove is provided on the side of the auxiliary roller near the positioning mechanism. A notch is provided on the side wall of the V-groove, and a support component is embedded in the notch. A covering component is provided on the side wall of the V-groove, covering the support component. The support component is an elastic support material (it can be polyurethane elastomer, Shore A 80-90, with adjustable elastic modulus, producing controllable micro-deformation of 0.1-0.5mm under pressure, and quickly recovering after unloading; high compressive strength ≥30MPa, fatigue resistant; good adhesion to the metal substrate, facilitating embedded installation). The covering component is an elastic friction material (it can be polyurethane, Shore A 60-75, with a high coefficient of friction of 0.8-1.2 in dry state, excellent wear resistance, and the surface can be embossed to further increase the biting force; its cut resistance is better than ordinary rubber, and it is suitable for sharp edges of steel plates). Once the wing plate is rotated to a vertical position, its conveying relies primarily on the friction between its edge and the feeding unit and auxiliary rollers. This friction is significantly less than the friction experienced when it is in a horizontal position. Therefore, the design of the V-groove and the covering component is necessary to enhance its frictional transmission force. Combined with the lifting device and the No. 3 traveling power unit, this ensures that the edge of the wing plate accurately falls into the V-groove. The covering component can be firmly wrapped around the support component using hot vulcanization or high-performance adhesives, preventing delamination.

[0013] Preferably, the moving wheel includes a wheel core rotatably connected to the output end of the second traveling power unit, a wheel cap detachably mounted on the wheel core, and precision bolts. The wheel core is divided into a foot and a core. The core and the wheel cap are fixed together by precision bolts (replacing the original integral casting structure, which would break quickly if it cracked, causing the wing plate to detach before it could react; the precision bolts have high strength, good locking force, and sufficient safety buffer time in case of loosening, preventing the wheel core and wheel cap from separating immediately. This design is to address the torsional stress on the moving wheel and the first positioning wheel caused by the edge of the wing plate during the flipping process, especially on the side near the moving wheel, where the moving arc path is longer during the flipping process, making it more prone to accidents). The foot and the wheel cap form a trapezoidal annular groove. Both the foot surface and the wheel cap surface are covered with an anti-slip layer (similarly, the No. 1 positioning wheel can also adopt the same structure as the moving wheel). The foot rotation connection of the wheel core is a thickened structure and is made of cast quenched ductile steel or duplex steel (quenched ductile steel and duplex steel have high strength and good formability, improve structural toughness, are not easy to break under extreme tensile force, have better safety when the wing plate flips, and will not cause the moving wheel to fall off due to structural cracking. In addition, duplex steel is also cheaper). The foot of the moving wheel has a hollow structure with a tension sensor inside. The core contains a tension spring. One end of the tension spring is connected to the tension sensor, and the other end is connected to the wheel cap. The tension sensor is used to detect the tension value of the tension spring. A warning module is installed on the moving wheel, and the tension sensor is used to send a signal to the control unit of the warning module.

[0014] Preferably, the warning module is installed on the upper part of the wheel cap. The warning module includes a strobe light. When the tension sensor detects that the tension of the tension spring is F1, the tension sensor sends a signal to the control unit of the strobe light, and the strobe light illuminates. When the precision bolts loosen and the wheel cap moves relative to the wheel core, the tension sensor will detect the change in the tension of the tension spring. At this time, the strobe light will sound an alarm, alerting the staff that there is a potential hazard at the corresponding location.

[0015] Preferably, the warning module is mounted on the wheel hub. The warning module includes a strobe light. A groove is formed at the lower part of the wheel hub, and the strobe light is embedded in the groove. A retaining ring is also attached to the lower part of the wheel hub, positioned below the groove. The lower end of the wheel cap is either in contact with or separate from the retaining ring. When the tension sensor detects a tension value of F1 in the tension spring, the tension sensor sends a signal to the control unit of the strobe light, and the strobe light illuminates. When the tension sensor detects a tension value of 0 in the tension spring, the lower end of the wheel cap is in contact with the retaining ring, and the strobe light is blocked by the wheel cap. When the tension sensor detects a tension value of F1 in the tension spring, the lower end of the wheel cap is separated from the retaining ring, and the strobe light is exposed. By placing the strobe light on the wheel hub, which is normally concealed by the wheel cap, it does not accumulate dust (the retaining ring uses a rubber ring to further improve sealing and prevent dust from entering the gaps). When the wheel cap and wheel hub move relative to each other, the strobe light is exposed, making it safer and more practical.

[0016] A conveying process for an H-beam erecting machine, employing the conveying system described above, includes the following steps: S1: Control the adjustment module, positioning mechanism and clamping mechanism in the pre-assembly unit in sequence according to the flange width and web width of the H-beam to be assembled. S101: The first operation of the distance adjustment module controls the moving side assembly module to move forward and get closer to the fixed side assembly module, so that the distance between the two lifting mechanisms matches the width of the web plate. The lifting mechanism is supported at 10-20cm from the edge of the web plate towards the center. S102: Adjusted to be close to the edge of the web plate by means of two positioning mechanisms; S103: Adjusted by the clamping mechanism, it is pressed against the edge of the wing plate with the adjacent positioning mechanism; S2: The flanges and webs of the H-beam are laid flat and conveyed to the pre-assembly unit through the feeding unit. The two flanges pass over the fixed side assembly module and the moving side assembly module respectively, and pass between the clamping mechanism and the adjacent positioning mechanism. The web passes over the lifting mechanism. S3: When the wing plate and the web plate reach the end positioning mechanism, the wing plate positioner and the web plate positioner recognize and alarm, and the operator controls the feeding mechanism to stop running. S4: The adjustment module runs for the second time, controlling the moving side assembly module to move in the opposite direction, away from the fixed side assembly module, with a moving distance of 2-5cm. S5: The flipping mechanism is activated, controlling the two wing plates to flip 90 degrees from a horizontal position to a vertical position; S6: The lifting mechanism is activated, controlling the web plate to rise to the preset height; S7: The adjustment module operates for the third time, controlling the moving side assembly module to move forward and approach the fixed side assembly module. The moving distance is 2-5cm, until the gap between the side of the wing plate and the edge of the web plate is 0.1-0.15cm. S8: The feeding mechanism and auxiliary transmission roller group are started, controlling the wing plate and web plate to continue moving towards the welding unit. After entering the welding unit, the welding robot runs according to the preset program and adjusts its posture to weld the upper and lower sides of the joint between the wing plate and the web plate at the same time. S9: The welded H-beams are conveyed to the unloading station by the welding unit's conveyor roller group. The inclined unloading rack (mechanical structure) at the unloading station supports the H-beams. The surface of the unloading rack is covered with an elastic rubber layer to prevent the H-beams from rolling and bumping. The finished H-beams are then transferred to the storage area manually or by hoisting equipment.

[0017] The beneficial effects of this invention are: 1. The processing technology of synchronous assembly, conveying and welding replaces the traditional method of first assembling with large mechanical equipment and then welding manually or automatically, which greatly reduces the production time, the whole process is automatically controlled, the human intervention is less, and the production is safer. 2. With various adjustable structures, it can be adapted to produce H-beams of different specifications, with a high degree of freedom. There is no need to prepare production lines for different specifications, and the equipment investment cost is small. 3. Through the sliding and lifting auxiliary rollers and the specially constructed V-groove structure on them, after the wing plate is flipped, if the original feeding unit cannot provide sufficient conveying friction, the auxiliary rollers can ensure stable conveying by transmitting frictional force to the edge of the wing plate. 4. The combined structure and precision bolt installation method used for the moving wheels used to clamp the wing plates are less prone to short-term ultimate fracture compared to the traditional integral casting structure, resulting in better safety during wing plate flipping and conveying. 5. The combination structure of the moving wheels, together with the warning module, can detect and alarm at the first sign of loose precision bolts, greatly improving early warning capabilities and the safety threshold of the production line. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic representation of the system flow of the present invention; Figure 2 The diagram shown is a three-dimensional schematic of the pre-assembled unit of the present invention; Figure 3 The diagram shown is another three-dimensional schematic diagram of the pre-assembled unit of the present invention; Figure 4 The diagram shown is a front view of the pre-assembled unit of the present invention; Figure 5 The diagram shown is a top view of the pre-assembled unit of the present invention; Figure 6 The diagram shown is a schematic of the auxiliary drive roller assembly of the present invention; Figure 7 The diagram shown is a schematic representation of the flipping mechanism of the present invention; Figure 8 The present invention is shown Figure 6 Enlarged view of point B in the middle; Figure 9 The present invention is shown Figure 4 Enlarged view of point A in the middle; Figure 10 The diagram shown is a first embodiment of the strobe lamp installation method of the present invention; Figure 11 The diagram shown is a second embodiment of the strobe lamp installation method of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Feeding unit; 2. Pre-assembly unit; 3. Welding unit; 201. Frame; 202. Fixed side assembly module; 203. Moving side assembly module; 204. Adjustment module; 205. Drive box; 206. Tilting mechanism; 207. Positioning mechanism; 208. Pressing mechanism; 209. Lifting mechanism; 210. Auxiliary transmission roller group; 401. Wing plate positioner; 402. Web plate positioner; 2041. No. 1 traveling power unit; 2061. Support; 2062. Shaft seat; 2063. Tilting frame; 2064. No. 1 cylinder; 2065. No. 1 shaft column; 2071. Slide; 2072. No. 1 positioning wheel; 2073. No. 2 positioning wheel; 2 074, Angle seat; 2075, Cylinder No. 2; 2076, Shaft No. 2; 2081, Orientation groove; 2082, Fixed wheel; 2083, Second traveling power unit; 2084, Moving wheel; 2091, First drive unit; 2092, Support roller; 2101, Bracket; 2102, Auxiliary roller; 2103, Second drive unit; 2104, Lifter; 2105, Third traveling power unit; 2106, V-groove; 2107, Support component; 2108, Covering component; 20841, Wheel core; 20842, Wheel cap; 20843, Precision bolt; 20844, Tension sensor; 20845, Tension spring; 20846, Strobe light; 20847, Retaining ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-11This invention provides an embodiment of a conveying system for an H-beam assembly machine, comprising a feeding unit 1, a pre-assembly unit 2, and a welding unit 3. The feeding unit 1 (in practical applications, friction conveyor rollers are generally used; two sets of friction conveyor rollers constitute one unit, with a length covering the width of the flange and web; all friction conveyor rollers are driven by chain linkage to ensure synchronized conveying speeds), the pre-assembly unit 2, and the welding unit 3 are arranged sequentially along the same horizontal direction. The feeding unit 1 conveys the flange and web of the H-beam to the pre-assembly unit 2 (an arc-shaped transition guide plate is added at the junction of the feeding unit 1 and the pre-assembly unit 2; the guide plate surface is covered with a polyurethane elastic layer to prevent edge and corner damage when the flange and web transition from horizontal conveying to pre-assembly positioning). The pre-assembly unit 2 assembles two flanges and one web into an H-shape and conveys them to the welding unit 3 via the feeding unit 1. The welding unit 3 welds the flange and web together. The pre-assembly unit 2 includes several arrayed... The frame 201 includes a fixed-side assembly module 202 and a movable-side assembly module 203 respectively installed on both sides of each frame 201, and an adjustment module 204 installed on each frame 201. The movable-side assembly module 203 is connected to the output end of the adjustment module 204. The adjustment module 204 is used to drive the movable-side assembly module 203 to move closer to or away from the fixed-side assembly module 202. The fixed-side assembly module 202 and the movable-side assembly module 203 have the same structure, each including a drive box 205, a flipping mechanism 206 and a lifting mechanism 209 installed on the drive box 205, and a positioning mechanism 207 and a clamping mechanism 208 installed on the output end of the flipping mechanism 206. The positioning mechanism 207 and the adjacent clamping mechanism 208 are used to clamp the wing plate, the two positioning mechanisms 207 are used to clamp the web plate, the flipping mechanism 206 is used to flip the wing plate from a horizontal state to a vertical state, and the lifting mechanism 209 is used to lift the web plate to a preset position.

[0022] Please see Figures 1-2 In this embodiment, an end positioning mechanism 207 is provided between the pre-assembly unit 2 and the welding unit 3. The end positioning mechanism 207 includes a wing plate positioner 401 and a web plate positioner 402 located in the wing plate conveying direction and the web plate conveying direction, respectively. Both the wing plate positioner 401 and the web plate positioner 402 are equipped with alarms to identify whether the wing plate and the web plate are in place. Polyurethane buffer heads are installed at the positioning ends of the wing plate positioner 401 and the web plate positioner 402 to avoid impact damage to the ends of the wing plate or the web plate. The alarm triggering structure is a mechanical contact type. When the end of the wing plate or the web plate touches the buffer head of the positioner, the buffer head drives the trigger rod to move, triggering the alarm to operate, without the need for manual judgment of the positioning status.

[0023] Please see Figures 2-6In this embodiment, the pre-assembly unit 2 further includes an auxiliary transmission roller assembly 210 mounted on the drive box 205. The auxiliary transmission roller assembly 210 includes a bracket 2101 mounted on the drive box 205, an auxiliary roller 2102 rotatably connected to the bracket 2101, and a second driver 2103 fixedly mounted on the bracket 2101. The output end of the second driver 2103 is connected to one end of the auxiliary roller 2102, and the second driver 2103 is used to drive the auxiliary roller 2102 to rotate at a preset speed. The auxiliary transmission roller assembly 210 can be equipped with a lifting adjustment structure, which can be adjusted to fit the surface of the wing plate during the horizontal conveying process of the wing plate, working in conjunction with the feeding unit 1.

[0024] Please see Figures 2-5 In this embodiment, the distance adjustment module 204 includes a first traveling power motor 2041 mounted on the frame 201. The output end of the first traveling power motor 2041 is connected to the moving side assembly module 203 (the first traveling power motor 2041 can specifically use a screw motor, cylinder or other equipment to control the movement of the moving side assembly module 203). The first traveling power motor 2041 is used to drive the moving side assembly module 203 to move closer to or further away from the fixed side assembly module 202. The lifting mechanism 209 includes a first driver 2091 fixedly mounted on the drive box 205 (the first driver 2091 can specifically use a screw motor, servo motor and gear set structure) and a support roller 2092 mounted on the output end of the first driver 2091 (note that the support roller 2092 is a passive roller). The first driver 2091 is used to drive the support roller 2092 to move vertically to a preset position.

[0025] Please see Figures 2-5 and Figure 7 In this embodiment, the flipping mechanism 206 includes a support 2061 and a bearing 2062 fixedly mounted on the drive box 205, a flipping frame 2063 rotatably connected at one end to the bearing 2062, a first cylinder 2064 rotatably connected to the other end of the flipping frame 2063, and a first shaft 2065 rotatably connected to the support 2061. One end of the first shaft 2065 is fixedly connected to the output end of the first cylinder 2064. When the first cylinder 2064 drives the first shaft 2065 to extend or retract, the flipping frame 2063 rotates around the bearing 2062. An angle limiting block can be added at the connection between the flipping frame 2063 and the bearing 2062 to precisely limit the flipping angle of the flipping frame 2063 to 90°, avoiding excessive or insufficient flipping of the wing plate. Triangular reinforcing ribs are welded to the side wall of the flipping frame 2063 to improve structural strength and prevent deformation during long-term flipping operations.

[0026] Please see Figures 2-4 and Figure 9In this embodiment, the positioning mechanism 207 includes a slide 2071 rotatably connected at one end to the tilting frame 2063, a first positioning wheel 2072 and a second positioning wheel 2073 rotatably connected at both ends of the slide 2071 (the wheel surfaces of the first positioning wheel 2072 and the second positioning wheel 2073 can be made of wear-resistant quenched steel with chrome plating to extend their service life; a copper bushing is added at the rotatable connection between the slide 2071 and the tilting frame 2063 to reduce rotational friction resistance and improve adjustment sensitivity), and is fixedly installed on the tilting frame 2063. The corner seat 2074 on the 63, the second cylinder 2075 rotatably connected to the corner seat 2074, and the second shaft 2076 rotatably connected at one end to the slide 2071, the other end of the second shaft 2076 being connected to the output end of the second cylinder 2075, the second cylinder 2075 driving the slide 2071 to rotate around the first positioning wheel 2072 as the axis through the second shaft 2076, when the slide 2071 rotates, the second positioning wheel 2073 approaches or moves away from the edge of the web; the clamping mechanism 208 includes a mechanism formed on the tilting frame 2063. The system includes a directional groove 2081, a fixed wheel 2082 installed at one end of the directional groove 2081, a second traveling power unit 2083 installed inside the tilting frame 2063, and a movable wheel 2084 slidably connected to the other end of the directional groove 2081. The movable wheel 2084 is installed on the output end of the second traveling power unit 2083, which drives the movable wheel 2084 to move along the directional groove 2081. (Specifically, the second traveling power unit 2083 can be a screw motor, cylinder, or other equipment to control the movement of the movable wheel 2084.) Wear-resistant nylon lining strips are added to the inner wall of the directional groove 2081 to reduce wear on the moving wheel 2084 during sliding; the anti-slip layer of the moving wheel 2084 adopts a silicon carbide particle coating process to improve the anti-slip effect; the first positioning wheel 2072, the fixed wheel 2082, and the moving wheel 2084 are all on the same straight line; the second traveling power unit 2083 is used to drive the moving wheel 2084 to move closer to or away from the first positioning wheel 2072; a limit pin is added to the output end of the second traveling power unit 2083 to prevent the moving wheel 2084 from being over-pressed, which would cause the wing plate to deform.

[0027] Please see Figure 6 and Figure 8In this embodiment, a lifter 2104 and a third traveling power unit 2105 are installed on the drive box 205. An auxiliary transmission roller group 210 is installed on the output end of the lifter 2104 and the third traveling power unit 2105. The third traveling power unit 2105 is used to drive the auxiliary transmission roller group 210 to move to a preset position, and the lifter 2104 is used to drive the auxiliary transmission roller group 210 to move vertically. After the wing plate flips, there may be a gap between its edge and the auxiliary roller 2102, which will not achieve the effect of friction transmission. Therefore, the height of the auxiliary roller 2102 is adjusted by the lifting device 2104 so that it is close to the edge of the wing plate. The third traveling power unit 2105 is used to control the movement of the auxiliary roller 2102, which can support the wing plate in the middle of the auxiliary roller 2102. This prevents the wing plate from being in the side position of the auxiliary roller 2102 after flipping, which would cause excessive unbalanced pressure on the auxiliary transmission roller group 210 and avoid structural deformation and damage. The design of the movable auxiliary transmission roller group 210 can also make the length of the auxiliary roller 2102 smaller and the cost lower. A V-groove 2106 is provided on the side of the auxiliary roller 2102 near the positioning mechanism 207. A notch is provided on the side wall of the V-groove 2106, and a support member 2107 is embedded in the notch. A covering member 2108 is provided on the side wall of the V-groove 2106, covering the support member 2107. The support member 2107 is an elastic support material (it can be polyurethane elastomer, Shore A 80-90, with adjustable elastic modulus, producing controllable micro-deformation of 0.1-0.5mm under pressure, and quickly recovering after unloading; high compressive strength ≥30MPa, fatigue resistant; good adhesion to metal substrate, easy to embed and install). The covering member 2108 is an elastic friction material (it can be polyurethane, Shore A 60-75, with a high coefficient of friction of 0.8-1.2 in dry state, excellent wear resistance, and the surface can be embossed to further increase the biting force; its cut resistance is better than ordinary rubber, and it is suitable for sharp edges of steel plates). When the wing plate is rotated to a vertical position, its conveying relies mainly on the friction between its edge and the feeding unit 1 and auxiliary roller 2102. This friction is much less than the conveying friction when it is in a horizontal state. Therefore, the design of the V-groove 2106 and the covering part 2108 is needed to improve its friction transmission force. In conjunction with the lifting device 2104 and the third traveling power unit 2105, the edge of the wing plate can also be accurately placed into the V-groove 2106. The covering part 2108 can firmly cover the support part 2107 through hot vulcanization or high-performance adhesive to avoid delamination.

[0028] Please see Figures 9-11In this embodiment, the moving wheel 2084 includes a wheel core 20841 rotatably connected to the output end of the second walking power unit 2083, a wheel cap 20842 detachably mounted on the wheel core 20841, and precision bolts 20843. The wheel core 20841 is divided into a foot part and a core part. The core part and the wheel cap 20842 are fixed together by precision bolts 20843 (replacing the original integral casting structure, which would break quickly if it cracked, and would not have time to react to the wing plate). It will come loose. The precision bolt 20843 has high strength and good locking force, and also has sufficient safety buffer time when loosening occurs. The wheel core 20841 and wheel cap 20842 will not separate immediately. This solution is to deal with the torsional stress on the moving wheel 2084 and the first positioning wheel 2072 by the edge of the wing plate during the flipping process. After the wing plate flips, its center of gravity shifts upward, especially on the side close to the moving wheel 2084. The moving arc path is longer on this side during the flipping process, making it more prone to tipping accidents. (Foot and wheel) The caps 20842 form a trapezoidal cross-section annular groove. Both the foot surface and the surface of the wheel caps 20842 are covered with an anti-slip layer (similarly, the first positioning wheel 2072 can also adopt the same structure as the moving wheel 2084). The foot rotation connection of the wheel core 20841 is a thickened structure made of integrally cast quenched ductile steel or duplex steel (quenched ductile steel and duplex steel have high strength and good formability, improving structural toughness, making them less prone to breakage under extreme tensile force, and providing better safety when the wing plate flips, preventing damage due to…). (Structural cracking caused the detachment of the movable wheel 2084); the foot of the movable wheel 2084 has a hollow structure with a tension sensor 20844 inside and a tension spring 20845 inside the core. One end of the tension spring 20845 is connected to the tension sensor 20844, and the other end is connected to the wheel cap 20842. The tension sensor 20844 is used to detect the tension value of the tension spring 20845. A warning module is installed on the movable wheel 2084, and the tension sensor 20844 is used to send a signal to the control unit of the warning module.

[0029] Regarding the first embodiment of the installation method for the 20846 strobe light: Please refer to... Figure 10 In this embodiment, the warning module is installed on the upper end of the wheel cap 20842. The warning module includes a strobe light 20846. When the tension sensor 20844 detects the tension value F1 of the tension spring 20845, the tension sensor 20844 sends a signal to the control unit of the strobe light 20846, and the strobe light 20846 illuminates. When the precision bolt 20843 loosens and the wheel cap 20842 moves relative to the wheel core 20841, the tension sensor 20844 will detect the change in the tension value of the tension spring 20845. At this time, the strobe light 20846 will sound an alarm, alerting the staff that there is a potential hazard at the corresponding location.

[0030] Regarding the second embodiment of the installation method for the 20846 strobe light: Please refer to... Figure 11In this embodiment, the warning module is installed on the wheel core 20841. The warning module includes a strobe light 20846. A groove is formed at the lower part of the core of the moving wheel 2084, and the strobe light 20846 is embedded in the groove. A retaining ring 20847 is also attached to the lower part of the core, and the retaining ring 20847 is located below the groove. The lower end of the wheel cap 20842 is either in close contact with or separate from the retaining ring 20847. When the tension sensor 20844 detects the tension value F1 of the tension spring 20845, the tension sensor... 20844 sends a signal to the control unit of strobe light 20846, and strobe light 20846 lights up; when tension sensor 20844 detects that the tension value of tension spring 20845 is 0, the lower end of wheel cap 20842 is in a tight state with retaining ring 20847, and strobe light 20846 is blocked by wheel cap 20842; when tension sensor 20844 detects that the tension value of tension spring 20845 is F1, the lower end of wheel cap 20842 is separated from retaining ring 20847, and strobe light 20846 is exposed. The strobe light 20846 is mounted on the wheel core 20841, which is covered by the wheel cap 20842. It is normally concealed and will not accumulate dust (the retaining ring 20847 uses a rubber ring to further improve the sealing and prevent dust from entering the gap). When the wheel cap 20842 and the wheel core 20841 move relative to each other, the strobe light 20846 is exposed, which is safer and more practical.

[0031] Please see Figures 1-11 In this embodiment, the present invention provides a conveying process for an H-beam erecting machine, employing a conveying system for an H-beam erecting machine as described above, including the following steps: S1: Control the adjusting module 204, positioning mechanism 207 and clamping mechanism 208 in the pre-assembly unit 2 in sequence according to the flange width and web width of the H-beam to be assembled. S101: The first operation of the distance adjustment module 204 controls the mobile side assembly module 203 to move forward (the first traveling power unit 2041 drives the mobile side assembly module 203 to move on the frame 201), approaching the fixed side assembly module 202, so that the distance between the two lifting mechanisms 209 (the distance between the two lifting mechanisms 209 on the mobile side assembly module 203 and the fixed side assembly module 202 changes relative to each other) is adapted to the width of the web plate, and the lifting mechanism 209 is supported at 10-20cm (preferably 15cm) from the edge of the web plate towards the center; S102: Adjust the position of the slide 207 to be close to the edge of the web plate through two positioning mechanisms 207 (the second cylinder 2075 moves through the extension and retraction of the second shaft column 2076, and uses the characteristics of the rocker arm structure to control the slide 2071 to rotate around the center of the first positioning wheel 2072 as the axis, so that the second positioning wheel 2073 approaches or moves away from the edge of the web plate). S103: By adjusting the clamping mechanism 208, the wing plate edge is brought closer to the adjacent positioning mechanism 207. The second traveling power unit 2083 controls the moving wheel 2084 to move closer to the first positioning wheel 2072, so that the distance between the moving wheel 2084 and the first positioning wheel 2072 is adapted to the width of the wing plate (note that at this time, the two sides of the wing plate need to be in close contact with the moving wheel 2084 and the first positioning wheel 2072 respectively). S2: The flanges and webs of the H-beam are laid flat and conveyed to the pre-assembly unit 2 through the feeding unit 1 (it is worth noting that the feeding unit 1 and the pre-assembly unit 2 are not completely independent units. The feeding unit 1 can completely cover the pre-assembly unit 2. That is to say, after the flanges and webs enter the pre-assembly unit 2, they are mainly conveyed through the feeding unit 1 covering the pre-assembly unit 2. The feeding unit 1 consists of two friction conveying rollers, which can be set on both sides of the frame 201 respectively). The two flanges pass through the fixed side assembly module 202 and the moving side assembly module 203 respectively, and pass between the pressing mechanism 208 and the adjacent positioning mechanism 207. The web passes through the lifting mechanism 209. S3: When the wing plate and the web plate reach the end positioning mechanism 207, the wing plate positioner 401 and the web plate positioner 402 recognize and alarm, and the operator controls the feeding mechanism to stop running. S4: The adjustment module 204 runs for the second time, controlling the moving side assembly module 203 to move in the opposite direction, away from the fixed side assembly module 202, with a moving distance of 2-5cm (preferably 5cm). S5: The flipping mechanism 206 is activated, cylinder 2064 operates, and power is output through shaft 2065. The rocker structure controls the flipping frame 2063 to rotate around the shaft seat 2062, controlling the two wing plates to flip 90 degrees from the horizontal state to the vertical state. (Note that the flipping speed needs to be controlled by the preset program. It is recommended to complete the 90-degree flip in 15-20 seconds. The speed of the 0°-60° segment of the flipping action should be as low as possible compared to the speed of the 60°-90° segment.) S6: The lifting mechanism 209 is activated. The first drive 2091 supports the web plate through the support roller 2092, controlling the web plate to be raised to the preset height (generally the middle position of the two wing plates, and the lifting height parameter is set in advance according to the width data of the wing plate). S7: The adjustment module 204 operates for the third time, controlling the moving side assembly module 203 to move forward and approach the fixed side assembly module 202. The moving distance is 2-5cm until the gap between the side of the wing plate and the edge of the web plate is 0.1-0.15cm (a better weld width for H-beams). S8: The feeding mechanism and auxiliary transmission roller group 210 are started, controlling the wing plate and web plate to continue moving towards the welding unit 3. After entering the welding unit 3, the welding robot runs and adjusts its posture according to the preset program (actually a robotic arm with a welding gun, generally four are set, two symmetrically set at the top and two at the bottom, each welding robot corresponds to the upper and lower weld seam positions of the wing plate and web plate edges respectively, and welding is carried out simultaneously or sequentially as the assembled H-beams are continuously fed). Welding is carried out simultaneously on the upper and lower sides of the joint between the wing plate and the web plate. S9: The welded H-beams are conveyed to the unloading station by the conveyor roller group of welding unit 3. The inclined unloading rack (mechanical structure) of the unloading station supports the H-beams. The surface of the unloading rack is covered with an elastic rubber layer to prevent the H-beams from rolling and bumping. The finished H-beams are transferred to the storage area manually or by hoisting equipment.

Claims

1. A conveying system for an H-beam erecting machine, comprising a feeding unit (1); characterized in that: It also includes a pre-assembly unit (2) and a welding unit (3). The feeding unit (1), the pre-assembly unit (2) and the welding unit (3) are arranged in sequence along the same horizontal direction. The feeding unit (1) transports the flanges and webs of the H-beam to the pre-assembly unit (2). The pre-assembly unit (2) assembles two flanges and one web into an H-shape and transports it to the welding unit (3) through the feeding unit (1). The welding unit (3) welds the flanges and webs together. The pre-assembly unit (2) includes several racks (201) arranged in an array, a fixed side assembly module (202) and a mobile side assembly module (203) respectively installed on both sides of each rack (201), and a distance adjustment module (204) installed on each rack (201). The mobile side assembly module (203) is connected to the output end of the distance adjustment module (204). The distance adjustment module (204) is used to drive the mobile side assembly module (203) to move closer to or further away from the fixed side assembly module (202). The fixed-side assembly module (202) and the mobile-side assembly module (203) have the same structure. Both include a drive box (205), a flipping mechanism (206) and a lifting mechanism (209) mounted on the drive box (205), and a positioning mechanism (207) and a clamping mechanism (208) mounted on the output end of the flipping mechanism (206). The positioning mechanism (207) and the adjacent clamping mechanism (208) are used to clamp the wing plate, the two positioning mechanisms (207) are used to clamp the web plate, the flipping mechanism (206) is used to flip the wing plate from a horizontal state to a vertical state, and the lifting mechanism (209) is used to lift the web plate to a preset position.

2. The conveying system for an H-beam erecting machine according to claim 1, characterized in that: An end positioning mechanism (207) is provided between the pre-assembly unit (2) and the welding unit (3). The end positioning mechanism (207) includes a wing plate positioner (401) and a web plate positioner (402) located in the wing plate conveying direction and the web plate conveying direction, respectively. An alarm is installed on both the wing plate positioner (401) and the web plate positioner (402). The alarm is used to identify whether the wing plate and the web plate are in place.

3. The conveying system for an H-beam erecting machine according to claim 1, characterized in that: The pre-assembly unit (2) also includes an auxiliary drive roller assembly (210) mounted on the drive box (205). The auxiliary drive roller assembly (210) includes a bracket (2101) mounted on the drive box (205), an auxiliary roller (2102) rotatably connected to the bracket (2101), and a second driver (2103) fixedly mounted on the bracket (2101). The output end of the second driver (2103) is connected to one end of the auxiliary roller (2102). The second driver (2103) is used to drive the auxiliary roller (2102) to rotate at a preset speed.

4. The conveying system for an H-beam erecting machine according to claim 3, characterized in that: The distance adjustment module (204) includes a first traveling power unit (2041) mounted on the frame (201). The output end of the first traveling power unit (2041) is connected to the mobile side assembly module (203). The first traveling power unit (2041) is used to drive the mobile side assembly module (203) to move closer to or further away from the fixed side assembly module (202). The lifting mechanism (209) includes a first driver (2091) fixedly installed on the drive box (205) and a support roller (2092) installed on the output end of the first driver (2091). The first driver (2091) is used to drive the support roller (2092) to move vertically to a preset position. The flipping mechanism (206) includes a support (2061) and a bearing (2062) fixedly mounted on the drive box (205), a flipping frame (2063) rotatably connected to the bearing (2062) at one end, a first cylinder (2064) rotatably connected to the other end of the flipping frame (2063), and a first shaft (2065) rotatably connected to the support (2061). One end of the first shaft (2065) is fixedly connected to the output end of the first cylinder (2064). When the first cylinder (2064) drives the first shaft (2065) to extend or retract, the flipping frame (2063) rotates around the bearing (2062) as the axis.

5. The conveying system for an H-beam erecting machine according to claim 4, characterized in that: The positioning mechanism (207) includes a slide (2071) rotatably connected to a tilting frame (2063) at one end, a first positioning wheel (2072) and a second positioning wheel (2073) rotatably connected to both ends of the slide (2071), a corner seat (2074) fixedly installed on the tilting frame (2063), a second cylinder (2075) rotatably connected to the corner seat (2074), and a second shaft (2076) rotatably connected to the slide (2071) at one end. The other end of the second shaft (2076) is connected to the output end of the second cylinder (2075). The second cylinder (2075) drives the slide (2071) to rotate around the first positioning wheel (2072) through the second shaft (2076). When the slide (2071) rotates, the second positioning wheel (2073) moves closer to or away from the edge of the web. The clamping mechanism (208) includes a directional groove (2081) opened on the tilting frame (2063), a fixed wheel (2082) installed at one end of the directional groove (2081), a second traveling power unit (2083) installed in the tilting frame (2063), and a movable wheel (2084) slidably connected to the other end of the directional groove (2081). The movable wheel (2084) is installed on the output end of the second traveling power unit (2083), and the second traveling power unit (2083) is used to drive the movable wheel (2084) to move along the directional groove (2081). The first positioning wheel (2072) is on the same straight line as the fixed wheel (2082) and the moving wheel (2084). The second walking power unit (2083) is used to drive the moving wheel (2084) to move closer to or away from the first positioning wheel (2072).

6. The conveying system for an H-beam erecting machine according to claim 3, characterized in that: The drive box (205) is equipped with a lifter (2104) and a third traveling power unit (2105). The auxiliary transmission roller group (210) is installed on the output end of the lifter (2104) and the third traveling power unit (2105). The third traveling power unit (2105) is used to drive the auxiliary transmission roller group (210) to move to a preset position. The lifter (2104) is used to drive the auxiliary transmission roller group (210) to move vertically. A V-groove (2106) is provided on the side of the auxiliary roller (2102) near the positioning mechanism (207). A notch is provided on the side wall of the V-groove (2106), and a support member (2107) is embedded in the notch. A covering member (2108) is provided on the side wall of the V-groove (2106), and the covering member (2108) covers the support member (2107). The support member (2107) is an elastic support material, and the covering member (2108) is an elastic friction material.

7. The conveying system for an H-beam erecting machine according to claim 5, characterized in that: The mobile wheel (2084) includes a wheel core (20841) rotatably connected to the output end of the second walking power unit (2083), a wheel cap (20842) detachably mounted on the wheel core (20841), and precision bolts (20843). The wheel core (20841) is divided into a foot and a core. The core and the wheel cap (20842) are fixed together by precision bolts (20843). The foot and the wheel cap (20842) form a trapezoidal groove. The surface of the foot and the surface of the wheel cap (20842) are covered with an anti-slip layer. The rotating connection of the foot of the wheel core (20841) is a thickened structure and is made of cast quenched ductile steel or duplex steel. The foot of the movable wheel (2084) is hollow and contains a tension sensor (20844). The core contains a tension spring (20845). One end of the tension spring (20845) is connected to the tension sensor (20844), and the other end is connected to the wheel cap (20842). The tension sensor (20844) is used to detect the tension value of the tension spring (20845). A warning module is installed on the movable wheel (2084). The tension sensor (20844) is used to send a signal to the control unit of the warning module.

8. The conveying system for an H-beam erecting machine according to claim 7, characterized in that: The warning module is installed on the upper end of the wheel cap (20842). The warning module includes a strobe light (20846). When the tension sensor (20844) detects that the tension value of the tension spring (20845) is F1, the tension sensor (20844) sends a signal to the control unit of the strobe light (20846), and the strobe light (20846) lights up.

9. A conveying system for an H-beam erecting machine according to claim 7, characterized in that: The warning module is installed on the wheel core (20841). The warning module includes a strobe light (20846). A groove is opened at the lower part of the core of the moving wheel (2084). The strobe light (20846) is embedded in the groove. A retaining ring (20847) is also attached at the lower part of the core. The retaining ring (20847) is located below the groove. The lower end of the wheel cap (20842) is either in close contact with or separate from the retaining ring (20847). When the tension sensor (20844) detects that the tension value of the tension spring (20845) is F1, the tension sensor (20844) sends a signal to the control unit of the strobe light (20846), and the strobe light (20846) lights up. When the tension sensor (20844) detects that the tension value of the tension spring (20845) is 0, the lower end of the wheel cap (20842) is in close contact with the retaining ring (20847), and the strobe light (20846) is blocked by the wheel cap (20842); when the tension sensor (20844) detects that the tension value of the tension spring (20845) is F1, the lower end of the wheel cap (20842) is separated from the retaining ring (20847), and the strobe light (20846) is exposed.

10. A conveying process for an H-beam erecting machine, characterized in that: The conveying system for an H-beam erecting machine as described in claim 1 includes the following steps: S1: Control the adjustment module (204), positioning mechanism (207) and clamping mechanism (208) in the pre-assembly unit (2) in sequence according to the flange width and web width of the H-beam to be assembled. S101: The first operation of the distance adjustment module (204) controls the moving side assembly module (203) to move forward and approach the fixed side assembly module (202), so that the distance between the two lifting mechanisms (209) matches the width of the web plate, and the lifting mechanism (209) is supported at 10-20cm from the edge of the web plate towards the center. S102: Adjusted to be close to the edge of the web plate by means of two positioning mechanisms (207); S103: Adjusted by the pressing mechanism (208), it is close to the edge of the wing plate with the adjacent positioning mechanism (207); S2: The flanges and webs of the H-beam are laid flat and conveyed to the pre-assembly unit (2) through the feeding unit (1). The two flanges pass over the fixed side assembly module (202) and the moving side assembly module (203) respectively, and pass between the pressing mechanism (208) and the adjacent positioning mechanism (207). The web passes over the lifting mechanism (209). S3: When the wing plate and the web plate reach the end positioning mechanism (207), the wing plate positioner (401) and the web plate positioner (402) recognize and alarm, and the operator controls the feeding mechanism to stop running; S4: The adjustment module (204) runs for the second time, controlling the moving side assembly module (203) to move in the opposite direction, away from the fixed side assembly module (202), with a moving distance of 2-5cm; S5: The flipping mechanism (206) is activated, controlling the two wing plates to flip ninety degrees from the horizontal state to the vertical state; S6: The lifting mechanism (209) is activated, controlling the web plate to be raised to the preset height; S7: The adjustment module (204) runs for the third time, controlling the moving side assembly module (203) to move forward and approach the fixed side assembly module (202). The moving distance is 2-5cm until the gap between the side of the wing plate and the edge of the web plate is 0.1-0.15cm. S8: The feeding mechanism and auxiliary transmission roller group (210) are started, and the control wing plate and web plate continue to move towards the welding unit (3). After entering the welding unit (3), the welding robot runs according to the preset program and adjusts its posture to weld the upper and lower sides of the joint of the wing plate and web plate at the same time.

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