Horizontal type automatic assembling special machine for H-shaped steel

Abstract

The utility model discloses a special horizontal type automatic assembling machine for H-shaped steel. The special horizontal type automatic assembling machine comprises an automatic plate grabbing mechanical arm, a conveying roller way, an end limiting mechanism, a wing plate turning-over web plate lifting turning-over machine and an assembling gantry. The automatic plate grabbing mechanical arm is used for grabbing the web plates and the wing plates to the conveying roller way from the material frame. The multiple conveying roller ways are arranged in sequence and used for conveying webs and wing plates to the end limiting mechanisms. The wing plate turning-over web plate lifting turning-over machine is used for turning over and adjusting the web plate and the wing plate which are conveyed to the end limiting mechanism, and the conveying roller way is used for conveying the web plate and the wing plate which are turned over and adjusted through the wing plate turning-over web plate lifting turning-over machine into the assembling gantry to be welded.

Description

Technical Field

[0001] The utility model relates to the technical field of H-beam industry, and more particularly to a horizontal automatic assembly machine for H-beam. Background Art

[0002] In the traditional H-beam industry, H-beams are assembled vertically, and the entire process is done manually by crane loading. The assembly process must be divided into two steps: the first step is to form a T-shape, then send it back, and the second step is to assemble it into an H-shape. The entire process is labor-intensive, with a low degree of automation and low production efficiency, and is prone to accidents such as worker injuries. Utility Model Content

[0003] The purpose of the utility model is to provide a horizontal automatic H-beam assembly machine to solve the technical problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A special machine for horizontal automatic assembly of H-shaped steel, comprising: an automatic sheet material grabbing robot, a transmission roller, an end limiting mechanism, a wing plate turning and web plate lifting and turning machine, and an assembly gantry; the automatic sheet material grabbing robot is used to grab the web plate and wing plate from the material rack and put it onto the transmission roller; a plurality of the transmission rollers are arranged in sequence, and the transmission rollers are used to transfer the web plate and wing plate to the end limiting mechanism; the wing plate turning and web plate lifting and turning machine is used to flip and adjust the web plate and wing plate transferred to the end limiting mechanism, and the transmission roller is used to transfer the web plate and wing plate turned and adjusted by the wing plate turning and web plate lifting and turning machine into the assembly gantry to complete welding.

[0006] In some embodiments, the flap turning and web lifting turning machine includes a flipping positioner, a web lifting mechanism, and a flap vertical adsorption mechanism; the flipping positioner is installed on the ground, the web lifting mechanism is bolted to the frame of the flipping positioner, and the flap vertical adsorption mechanism is bolted to the flip arm of the flipping positioner; the flipping positioner has a 90° flipping function and a left and right centering movement function for the flip arm; the web lifting mechanism is used to adjust the height of the H-shaped steel web; the flap vertical adsorption mechanism is used to prevent the flap from falling and rubbing against the conveying roller when the flap is flipped;

[0007] The flip positioner includes a base, a frame, a flip arm, a centering reducer, a servo motor, a centering screw rod, and an oil cylinder;

[0008] The base is installed on the ground; the centering reducer is installed on the end face of the base and is driven by a servo motor. The centering reducer is used to drive the centering screw rod, which is used to drive the nut to drive the frame to move left and right. The left side of the centering screw rod is a left-handed thread and the right side is a right-handed thread, so that the frames on both sides can move synchronously to the middle or both sides at the same time. The frame is fixed to the upper plane of the base by an L-shaped sliding block.

[0009] In some embodiments, a flip arm is also included, and the side of the frame is processed with a flat surface and threaded holes for installing a web lifting mechanism; a cylinder is installed in the middle of the frame to drive the flip arm to rotate 90 degrees; the cylinder is installed with front and rear ear holes, and the cylinder body is installed on the frame through a pin shaft, and the piston rod of the cylinder is connected to the flip arm through the pin shaft. A hole is processed at the front end of the frame, and the processed hole is used as the rotation point. The cylinder drives the flip arm to rotate 90 degrees.

[0010] In some embodiments, a transmission roller is installed at the upper end of the flip arm, and the transmission roller is installed on the flip arm through a seat bearing; the transmission roller is used for transmitting the wing plate; the seat bearing and the flip arm are directly installed with a butterfly spring, and the butterfly spring is used to make the flip arm flip to 90 degrees, so that the transmission rollers on the left and right sides have an appropriate floating amount when centering and clamping the H-shaped steel. The side of the flip arm is processed with a flat surface and a threaded hole for installing the vertical adsorption mechanism of the wing plate.

[0011] In some embodiments, the web lifting mechanism includes a mounting frame, an AC servo motor, a screw lift, a third guide rod, and a roller; the mounting frame is connected to the frame of the flip positioner by bolts, the screw lift is installed on the mounting frame, and the AC servo motor drives the screw of the screw lift to extend and retract, driving the third guide rod to extend and retract, thereby adjusting the height of the roller, and the end of the third guide rod is processed with an internal thread for connecting to the screw lift.

[0012] In some embodiments, the vertical adsorption mechanism of the wing plate includes an electromagnet, an electromagnet mounting plate, a cylinder, a guide shaft, and a mounting bracket; the mounting bracket is connected to the flip arm by bolts, the cylinder is set on the mounting bracket by bolts, and holes are processed on both sides of the mounting bracket for installing the guide shaft; the middle of the electromagnet mounting plate is connected to the cylinder by threads, and the two sides are connected to the guide shaft by bolts. The electromagnet mounting plate can move up and down through the extension and retraction of the cylinder, and the electromagnet is mounted on the electromagnet mounting plate by bolts.

[0013] In some embodiments, the assembly gantry includes: a gantry frame, a lifting and pressing platform, a web lifting mechanism, a right wing plate numerical control adjustment and drive mechanism, a left wing plate hydraulic pressing and drive mechanism, a steel plate end alignment mechanism, a lower welding gun mechanism, and a lower end support mechanism;

[0014] The gantry is the main body and is installed on the ground. The lifting and pressing platform, web lifting mechanism, right wing plate CNC adjustment and drive mechanism, left wing plate hydraulic pressing and drive mechanism, steel plate end alignment mechanism, lower welding gun mechanism and lower end support mechanism are all installed on the gantry.

[0015] The side push rollers of the right wing plate CNC adjustment and drive mechanism and the left wing plate hydraulic pressing and drive mechanism cooperate with each other to press the H-shaped steel wing plate in the height direction. The lifting and pressing platform is used to press the wing plate in the width direction. The web lifting mechanism is lowered to press the web. The steel plate end alignment mechanism is used to align the web and wing plate end faces. The upper and lower welding guns are in place, started, spot welding, and the workpiece is transported by the conveyor roller. The lower welding gun mechanism spot welds the workpiece according to the set program.

[0016] In some embodiments, the gantry includes a base, a column and a top beam; a first linear guide rail for lifting and lowering the pressing platform is installed on the column, and the first linear guide rail is connected to the column; the column is installed on the base, and a second linear guide rail is installed on the base, and the second linear guide rail is used to install the left wing hydraulic pressing and driving mechanism and the right wing CNC adjustment and driving mechanism; the top beam is installed on the column.

[0017] In some embodiments, the lifting and pressing platform includes a lifting mechanism, a platform, a transverse slide, a web pressing mechanism and a welding gun assembly, and a wing plate pressing roller;

[0018] Linear guide sliders are installed on both sides of the platform. The linear guide sliders cooperate with the first linear guide installed on the side of the gantry column to guide the entire lifting and pressing platform when it rises and falls; a third linear guide and rack are installed on the upper surface of the platform. The third linear guide and rack are connected to the platform through bolts. The third linear guide is used to guide the translation of the transverse slide; the first mounting brackets of the hydraulic cylinder piston rod are installed on both sides of the upper surface of the platform. The piston rod of the hydraulic cylinder is connected to the first mounting bracket of the hydraulic cylinder piston rod through a pin shaft. The cylinder body of the hydraulic cylinder is installed on the top beam of the gantry by bolts. The extension and retraction of the hydraulic cylinder drives the platform to rise and fall;

[0019] Two rollers for pressing the wing plates are respectively installed on the front and rear beams of the lifting platform; a bearing seat for the wing plate pressing roller is installed under the lifting platform, and the shafts at both ends of the wing plate pressing roller are installed in the bearings of the upper pressing roller bearing seat;

[0020] The web pressing mechanism is installed on the lifting and pressing platform. After the lifting and pressing platform drives the web pressing mechanism and the welding gun assembly into place, the web pressing roller is driven by the first hydraulic cylinder to press the web. The welding gun assembly is installed on the web pressing roller to always maintain the height distance between the welding gun and the workpiece.

[0021] The web pressing mechanism includes an upper welding gun translation slide, a first hydraulic cylinder, a first guide rod, and a guide wheel;

[0022] The upper welding gun translation slide is installed on the slider of the linear guide rail. The welding gun translation slide is driven by the reducer and gear rack to achieve horizontal movement.

[0023] A lateral guide wheel bracket is installed under the upper welding gun translation slide. The lateral guide wheel bracket is connected to the upper welding gun translation slide by bolts. A guide wheel is installed under the lateral guide wheel bracket. When the H-beam is assembled, the guide wheel rests on the side of the web of the H-beam to ensure the distance between the upper welding gun and the web of the H-beam.

[0024] The cylinder body of the first hydraulic cylinder is connected to the upper welding gun translation slide through bolts; the first guide rod is connected to the piston rod of the hydraulic cylinder through threads; a guide wheel is installed at the front end of the first guide rod; a reducer and a servo motor are installed on the side of the first guide rod.

[0025] In some embodiments, the web lifting mechanism is used to position H-shaped steel webs of different widths. The web lifting mechanism includes a mounting frame, a first AC servo motor, a screw lift, and a second guide rod. The mounting frame is installed on the frame of the right wing plate CNC adjustment and drive mechanism and the left wing plate hydraulic clamping and drive mechanism. The screw lift is installed on the mounting frame. The screw lift is driven to extend and retract by the first AC servo motor, driving the second guide rod to rise and fall. The second guide rod is connected to the telescopic rod of the screw lift through a thread; a roller is installed at the front end of the second guide rod.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The H-beam horizontal automatic assembly machine provided in this case uses a horizontal assembly method to assemble H-beams into shape in one go. Four welding guns are used for spot welding, simultaneously spot welding the upper and lower sides. The entire process, from steel plate loading, transportation, assembly, and spot welding, is fully CNC-controlled. Workers only need to input the dimensional parameters of the H-beam to be assembled in advance and press the start button to automatically assemble the entire H-beam. This equipment effectively reduces workers' labor intensity and increases efficiency by 2-3 times compared to traditional methods. It is an ideal device for H-beam assembly and has been well received by users for its efficiency, convenience, and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the H-beam horizontal automatic assembly machine of this application;

[0029] Figure 2 This is a three-view drawing of the flange turning and web lifting turning machine used for horizontal H-beam assembly, in which Figure 1 In the figure, a is the main view, b is the side view, and c is the top view;

[0030] Figure 3This is the three-view drawing of the flip positioner, Figure 2 In the figure, a is the main view, b is the side view, and c is the top view;

[0031] Figure 4 is a schematic diagram of the web lifting mechanism;

[0032] Figure 5 It is the three-view drawing of the vertical adsorption mechanism of the wing plate, where Figure 4 In the figure, a is the main view, b is the side view, and c is the top view.

[0033] Figure 6 This is a three-view drawing of an assembly gantry for horizontal automatic assembly of H-beams. Figure 1 In the figure, a is the main view, b is the side view, and c is the top view;

[0034] Figure 7 It is a schematic diagram of the gantry;

[0035] Figure 8 This is a schematic diagram of the lifting and compacting platform;

[0036] Figure 9 It is the web lifting mechanism;

[0037] Figure 10 This is a schematic diagram of the CNC adjustment and drive mechanism of the right wing;

[0038] Figure 11 This is a schematic diagram of the hydraulic pressing and driving mechanism of the left wing;

[0039] Figure 12 It is a schematic diagram of the steel plate end alignment mechanism;

[0040] Figure 13 It is a schematic diagram of the lower welding gun mechanism;

[0041] Figure 14-16 It is a schematic diagram of the automatic sheet material grabbing robot from different angles;

[0042] Figure 17 is a schematic diagram of a mobile cart;

[0043] Figure 18 is a schematic diagram of the travel drive mechanism;

[0044] Figure 19 It is a schematic diagram of the grab lifting arm.

[0045] Figure 20 It is a schematic diagram of the spreader.

[0046] Figure 21 It is a schematic diagram of the end limit mechanism.

[0047] Illustration: 1-lifting and pressing platform, 2-gantry, 3-lower end support mechanism, 4-steel plate end alignment mechanism, 5-right wing plate CNC adjustment and drive mechanism, 7-web lifting mechanism, 8-lower welding gun mechanism, 11-first hydraulic cylinder, 12-platform, 13-slider, 14-transverse slide, 15-wing plate pressing roller, 16-web plate pressing mechanism, 17-welding gun mechanism, 21-top beam, 22-first linear guide rail, 23-column, 24-base, 25-second linear guide rail, 32-horizontal pneumatic support plate, 33-vertical Pneumatic support plate, 34- welding gun assembly, 41- limit baffle, 42- third mounting bracket, 51- reducer, 52- first pressure roller, 53- sprocket chain, 54- fourth linear guide rail, 55- lead screw nut, 57- first frame, 61- second pressure roller, 63- second frame, 64- fifth linear guide rail, 65- second hydraulic cylinder, 71- roller, 72- first guide rod, 73- first mounting bracket, 74- lead screw lifter, 75- first AC servo motor, 76- flip positioner, 77- web lifting mechanism, 78- Wing plate vertical adsorption mechanism, 79-centering reducer, 80-oil cylinder, 81-flip arm, 82-transmission roller, 83-frame, 84-L-shaped sliding block, 85-centering screw, 86-base, 87-servo motor, 88-roller, 89-third guide rod, 90-mounting frame, 91-screw lift, 92-AC servo motor, 93-electromagnet, 94-electromagnet mounting plate, 95-mounting bracket, 96-cylinder, 97-guide shaft, 100-automatic grabbing manipulator, 200-transmission roller, 300-truss, 4 00-mobile trolley, 500-first rack, 121-travel drive mechanism, 122-trolley frame, 123-rail clamp, 124-first motor, 125-reducer, 126-reducer bracket, 127-first gear, 131-guide rail, 132-second rack, 133-lifting frame, 134-second motor, 135-second reducer, 136-slide, 141-lifting body, 142-second electromagnet, 143-spring, 144-pneumatic limiter, 145-fixed block, 146-end frame. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0049] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0051] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0052] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or display that comprises a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product, or display.

[0053] The following will be combined Figures 1-21 , a H-beam horizontal automatic assembly machine involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation of the present application.

[0054] Embodiment 1:

[0055] See also Figures 1-21, a special machine for horizontal automatic assembly of H-shaped steel, including: an automatic sheet material grabbing robot 5000, a transmission roller 200, an end limit mechanism 2000, a wing plate turning and web plate lifting and turning machine 4000, and an assembly gantry 1000; the automatic sheet material grabbing robot is used to grab the web and wing plates from the material rack and put them onto the transmission roller; a plurality of the transmission rollers are arranged in sequence, and the transmission rollers are used to transfer the web and wing plates to the end limit mechanism; the wing plate turning and web plate lifting and turning machine is used to flip and adjust the web and wing plates transferred to the end limit mechanism, and the transmission roller is used to transfer the web and wing plates flipped and adjusted by the wing plate turning and web plate lifting and turning machine into the assembly gantry to complete welding.

[0056] The Wing Plate Turning and Web Plate Lifting Machine is used for horizontal H-beam assembly. The entire process is fully CNC-controlled, requiring workers to input the dimensions of the H-beam in advance. This equipment effectively reduces labor intensity and increases efficiency by 2-3 times compared to traditional methods. It is an ideal device for H-beam assembly and has been well-received by users for its efficiency, convenience, and safety.

[0057] The equipment mainly consists of a flip positioner 76, a web lifting mechanism 77, a wing plate vertical adsorption mechanism 78, and an electrical control system. The flip positioner 76 is installed on the ground, the web lifting mechanism 77 is bolted to the frame 83 of the flip positioner 76, and the wing plate vertical adsorption mechanism 78 is bolted to the flip arm 81 of the flip positioner 76.

[0058] The wing plate turning and web plate lifting machine consists of a turning positioner 76, a web plate lifting mechanism 77, and a wing plate vertical adsorption mechanism 78. The turning positioner 76 realizes a 90° turning of the wing plate; the web plate lifting machine completes the lifting and positioning of the web plate to achieve the purpose of pre-assembly.

[0059] See also Figure 2 The flip positioner 76 is composed of a base 86, a frame 83, a flip arm 81, a transmission roller 82, a centering reducer 79, a servo motor 87, a centering screw rod 85, a cylinder 80, etc.

[0060] The flip positioner 76 has a flip arm 8190° flip function; left and right centering movement function;

[0061] The base 86 is installed on the ground and is fixed to the ground by dragging a chemical anchor bolt; the centering reducer 79 is installed on the end face of the base 86, and the centering reducer 79 is driven by the servo motor 87. The reducer drives the centering screw 85, and the screw drive nut drives the frame 83 to move left and right. The left side of the centering screw 85 is a left-handed thread, and the right side is a right-handed thread, so that the frames 83 on both sides can move synchronously to the middle or both sides at the same time. The frame 83 is fixed to the upper plane of the base 86 by an L-shaped sliding block 84. A copper plate is installed at the bottom of the frame 83 to reduce the friction between the frame 83 and the base 86 during movement.

[0062] The side of the frame 83 is machined with a flat surface and threaded holes for mounting the web lifting mechanism 77;

[0063] An oil cylinder 80 is installed in the middle of the frame 83 to drive the flip arm 81 to rotate 90 degrees. The oil cylinder 80 is installed with front and rear ear holes. The cylinder body is installed on the frame 83 through a pin, and the piston rod is connected to the flip arm 81 through the pin. A hole is machined at the front end of the frame 83. With this hole as the rotation point, the oil cylinder 80 drives the flip arm 81 to rotate 90 degrees.

[0064] A transfer roller 82 is mounted on the top of the flip arm 81, attached to the flip arm 81 via a seated bearing. The transfer roller 82 is used to transport the wing plate. A butterfly spring is directly mounted between the seated bearing and the flip arm 81. This spring allows the flip arm 81 to rotate 90 degrees. The left and right transfer rollers 82 allow for a certain amount of floating when centering and clamping the H-beam, preventing excessive clamping friction that could prevent the workpiece from being transported. The side of the flip arm 81 is machined with a flat surface and threaded holes for mounting the wing plate vertical suction mechanism 78.

[0065] The web lifting mechanism 77 is used to adjust the height of the H-shaped steel web. The web lifting mechanism 77 consists of a mounting frame 90, an AC servo motor 9219, a screw lift 91, a third guide rod 89, and a roller 88.

[0066] Mounting frame 90 is bolted to frame 83 of flip positioner 76. Screw lift 91 is mounted on mounting frame 90. Servo motor 87 drives the screw of screw lift 91 to extend and retract, thereby extending and retracting third guide rod 89. This adjusts the height of roller 88 to accommodate the height adjustment of different H-beam webs. The end of third guide rod 89 is internally threaded for connection to the screw lift.

[0067] The vertical adsorption mechanism 78 of the flap is used to prevent the flap from falling and rubbing against the transmission roller 82 when the flap is flipped; in the process of the flap being transmitted through the transmission roller 82, the cylinder 96 is in a retracted state, so that the upper surface of the electromagnet 93 is lower than the upper surface of the transmission roller 82, avoiding the flap from rubbing against the electromagnet 93 during the transmission process; when the flap is transmitted into place and needs to be flipped 90 degrees, the cylinder 96 is in an extended state, lifting the electromagnet 93 so that the flap is higher than the upper surface of the transmission roller 82, avoiding the flap from rubbing against the surface of the transmission roller 82 during the flipping process, and at the same time, the electromagnet 93 is in an energized state, adsorbing the flap to prevent the flap from sliding or falling during the flipping process.

[0068] The wing plate vertical adsorption mechanism 78 is composed of an electromagnet 93, an electromagnet mounting plate 94, a cylinder 96, a guide shaft 97, a mounting bracket 95, etc.

[0069] Mounting bracket 95 is bolted to tilt arm 81, and cylinder 96 is bolted to mounting bracket 95. Holes are machined on both sides of mounting bracket 95 for installing guide shaft 97. Electromagnet mounting plate 94 is threadedly connected to cylinder 96 in the middle and bolted to guide shaft 97 on both sides. Electromagnet mounting plate 94 can move up and down due to the expansion and contraction of cylinder 96. Electromagnet 93 is bolted to electromagnet mounting plate 94. Network communication and control systems enable signal exchange between each workstation throughout the production line, completing complete line control.

[0070] The electrical control system uses PLC as the main controller, equipped with a human-machine interface, and coordinates various actuators to perform timing logic control, so that the entire system has high reliability, low failure rate, easy maintenance, and can operate safely and stably for a long time. At the same time, it has complete protection functions, including overcurrent, phase loss, short circuit, extreme position limit, etc.

[0071] The control system mainly includes a control cabinet and an operating table (box). The control cabinet is used to install PLC, drive system and other electrical related components. The operating table (box) is equipped with relevant buttons, switches, emergency stop, etc. for various operations of the equipment. The control system mainly consists of the following parts:

[0072] Main control unit: The control system uses PLC as the main control unit. The PLC is installed in the control cabinet to coordinate various electrical components and complete the coordinated control of the entire production line.

[0073] Detection and safety system: mainly composed of various sensors, magnetic switches, travel limits, emergency stop switches, etc., which detect or monitor the position and operating status of each motion mechanism to achieve safety interlocking and travel protection of related mechanisms.

[0074] Human-machine interface: Human-machine interface is an important component of the control system and is the medium for information exchange between the control system and humans. This system uses a touch screen as the hardware device for human-machine interaction, which mainly completes parameter input and function setting.

[0075] Operating system: The operating system is mainly composed of an operating table (box), which contains switches, buttons and emergency stop switches for all relevant operations of the current workstation. Each operating function has a Chinese label.

[0076] Requirements for whole-line informatization:

[0077] Provide a unified OPC UA service interface to facilitate connection with Party A's MES system;

[0078] The following three types of information are provided to Party A's MES system: key parameters for normal equipment operation; equipment energy consumption data (per unit product); and safety emergency stop control signals.

[0079] Assemble the gantry, including the gantry frame 2, the lifting and pressing platform 121, the web lifting mechanism 7, the right wing plate CNC adjustment and drive mechanism 5, the left wing plate hydraulic pressing and drive mechanism, the steel plate end alignment mechanism 4, the lower welding gun mechanism 178, and the lower end support mechanism 3;

[0080] The gantry 2 is the main body and is installed on the ground. The lifting and pressing platform 121, the web lifting mechanism 7, the right wing plate CNC adjustment and drive mechanism 5, the left wing plate hydraulic pressing and drive mechanism, the steel plate end alignment mechanism 4, the lower welding gun mechanism 178 and the lower end support mechanism 3 are all installed on the gantry 2;

[0081] The side push rollers of the right wing plate CNC adjustment and drive mechanism 5 and the left wing plate hydraulic pressing and drive mechanism cooperate with each other to press the H-shaped steel wing plate in the height direction. The lifting and pressing platform 121 is used to press the wing plate in the width direction. The web lifting mechanism 7 is lowered to press the web. The steel plate end alignment mechanism 4 is used to align the web and wing plate end faces. The upper and lower welding guns are in place, started, spot welding, and the workpiece is transported by the conveyor roller. The lower welding gun mechanism 178 spot welds the workpiece according to the set program.

[0082] The working process of the equipment is as follows:

[0083] The transmission roller conveys the web and wing plate into the assembly gantry, the web plate of the assembly gantry is lifted and stopped, the CNC adjustment of the right wing plate and the side push roller of the drive mechanism 5 are in place, the hydraulic pressing of the left wing plate and the side push roller of the drive mechanism press the H-shaped steel wing plate (in the height direction of the H-shaped steel) → the wing plate pressing roller on the lifting and pressing platform 121 presses the wing plate (in the width direction of the H-shaped steel), the web plate pressing roller is lowered to press the web plate → the steel plate alignment mechanism at the front end of the assembly gantry aligns the end faces of the web and wing plate, the upper and lower welding guns are in place, started, and spot welding is performed. While the transmission roller conveys the workpiece, the upper and lower welding guns spot weld the workpiece according to the set program. The entire process is fully automatic program controlled and does not require human intervention.

[0084] The end limit mechanism is used to limit the steel plate after it is transferred into place.

[0085] The end limit mechanism is composed of an end frame 146, a limit block 145, and a pneumatic limiter 144; the two side wing limit mechanisms are fixed blocks, and the middle web limit mechanism is a liftable pneumatic limiter.

[0086] In order to ensure that the web is always in front of the wing before final alignment, the web stopper is installed ahead of the wing stopper.

[0087] The end frame is equipped with detection switches. When the first set of switches is activated, the workpiece slows down and continues to move slowly. When the second set of switches is activated, the workpiece stops automatically to achieve precise positioning.

[0088] The end frame is installed on the ground, and the fixed block is connected to the frame by bolts.

[0089] The assembly gantry adopts a gantry structure and mainly consists of a gantry frame 2, a lifting and pressing platform 121, a web lifting mechanism 7, a right wing plate numerical control adjustment and drive mechanism 5, a left wing plate hydraulic pressing and drive mechanism, a steel plate end alignment mechanism 4, a lower welding gun mechanism 178, and a lower end support mechanism 3.

[0090] Gantry 2: Gantry 2 consists of a base 24, columns 23 and a top beam 21.

[0091] The column 23 is made of rectangular tubes welded together and then annealed and processed after welding. The column 23 is equipped with a first linear guide rail 22 for guiding the lifting and lowering of the clamping platform 121. The first linear guide rail 22 is connected to the column 23 by bolts. The column 23 is installed on the base 24. The column 23 and the base 24 are connected by bolts. The second linear guide rail 25 is installed on the base 24. The second linear guide rail 25 and the base 24 are connected by bolts. The second linear guide rail 25 is used to install the left wing hydraulic clamping and drive mechanism and the right wing CNC adjustment and drive mechanism 5; the top beam 21 is installed on the column 23. The top beam 21 and the column 23 are connected by bolts;

[0092] The lifting and pressing platform 121 is composed of a lifting mechanism, a platform 12 , a transverse slide 14 , a web pressing mechanism 16 , a welding gun assembly 34 , and a wing plate pressing roller 15 .

[0093] The platform 12 is welded from rectangular tubes and then annealed and processed after welding. Linear guide sliders 13 are installed on both sides of the platform 12. The linear guide sliders 13 are connected to the platform 12 by bolts. The linear guide sliders 13 cooperate with the first linear guide 22 installed on the side of the gantry 2 column 23 to guide the entire lifting and clamping platform 121 when it rises and falls; a third linear guide and rack are installed on the upper surface of the platform 12. The third linear guide and rack are connected to the platform 12 by bolts. The third linear guide is used to guide the translation of the transverse slide 14; the first hydraulic cylinder 11 piston rod first mounting bracket is installed on both sides of the upper surface of the platform 12 and is connected to the platform 12 by bolts. The piston rod of the first hydraulic cylinder 11 is connected to the first mounting bracket of the hydraulic cylinder piston rod through a pin shaft. The cylinder body of the first hydraulic cylinder 11 is installed on the top beam 21 of the gantry 2 by bolts. The extension and retraction of the first hydraulic cylinder 11 drives the platform 12 to rise and fall.

[0094] Two transverse slides 14 are mounted on three beams on the lifting and pressing platform 121 and are connected by a third linear slide rail. The transverse slides 14 are driven by a reducer 51 and a rack and pinion to achieve transverse movement.

[0095] Two rollers for pressing the wing plates are respectively installed on the front and rear beams of the lifting platform 12. A bearing seat for the upper wing plate pressing roller 15 is installed below the lifting platform 12. The bearing seat is connected to the platform 12 by bolts, and the shafts at both ends of the wing plate pressing roller 15 are installed in the bearings of the upper pressing roller bearing seat.

[0096] Web-pressing mechanism 16 and welding gun assembly 34: The web-pressing mechanism 16 is mounted on a lifting and clamping platform 121. After the lifting and clamping platform 121 moves the web-pressing mechanism 16 and welding gun assembly 34 into position, the web-pressing cylinder drives the web-pressing roller to compress the web. The welding gun assembly 34 is mounted on the web-pressing roller to maintain a constant height distance between the welding gun and the workpiece.

[0097] The web pressing mechanism 16 is composed of an upper welding gun translation slide, a first hydraulic cylinder 11, a first guide rod 72, and a guide wheel.

[0098] The upper welding gun translation slide is installed on the slider 13 of the linear guide rail and is connected to the slider 13 by bolts. The upper welding gun translation slide is driven by the reducer 51 + gear rack to achieve lateral movement.

[0099] A lateral guide wheel bracket is installed under the upper welding gun translation slide, and the lateral guide wheel bracket is connected to the upper welding gun translation slide by bolts. A guide wheel is installed under the lateral guide wheel bracket; when the H-beam is paired, the guide wheel rests on the side of the web of the H-beam to ensure the distance between the welding gun and the web of the H-beam.

[0100] The cylinder body of the first hydraulic cylinder 11 is bolted to the upper welding gun translation slide; the first guide rod 72 is threadedly connected to the piston rod of the hydraulic cylinder; a guide wheel is mounted on the front end of the first guide rod 72; and a reducer 51 and a servo motor are mounted on the side of the first guide rod 72. The reducer 51 is hollow, and the shaft at one end of the welding gun clamp is inserted into the output hole of the reducer 51. The welding gun is mounted on the other end of the clamp. Rotation of the reducer 51 causes the clamp to rotate, thereby adjusting the welding gun angle.

[0101] The web lifting mechanism 7 is used to position the webs of H-shaped steels of different widths, and the webs are lifted and lowered by the elevator. At the same time, in order to meet the requirements of H-shaped steels of different heights, the device can perform centering movement.

[0102] The web lifting mechanism 7 is composed of a mounting frame, a first AC servo motor 75 , a screw lift 74 , a second guide rod, and a roller 71 .

[0103] The mounting frame is installed on the frame of the right wing CNC adjustment and drive mechanism 5 and the left wing hydraulic pressing and drive mechanism, and the mounting frame is connected to the frame by bolts; a screw lift 74 is installed on the mounting frame and connected by bolts; the screw lift 74 is driven to extend and retract by the first servo motor, driving the second guide rod to rise and fall, and the second guide rod is connected to the telescopic rod of the screw lift 74 by a thread; a roller 71 is installed at the front end of the second guide rod.

[0104] This workstation is assembled in the center of the equipment, so the position of the wing panels of workpieces of different sizes needs to be adjusted. The left and right position adjustment of the right wing panel is driven by an AC servo motor, and the control system can be adjusted through the program.

[0105] The right fender numerical control adjustment and driving mechanism 5 is composed of a second AC servo motor, a reducer 51 , a screw nut 55 , a linear guide rail, a first frame 57 , and a first knurled pressure roller 52 .

[0106] The first frame 57 is mounted on the slider 13 of the fourth linear guide 54 and is bolted to the slider 13. A reducer 51 and an AC motor are installed inside the frame, and the reducer 51 is bolted to the frame. A sprocket is mounted on the output shaft of the reducer 51, and the sprocket chain 53 drives the knurled pressure roller to rotate, providing power for the workpiece transmission. The pressure roller bearing seat is mounted on the end face of the frame and connected by bolts. The pressure roller is mounted on the pressure roller bearing seat, and a sprocket is also mounted on the end of the pressure roller to transmit power. The left and right adjustment of the frame is achieved by the reducer 51 below and the servo motor driving the screw nut 55 to move. The reducer 51 is mounted on the base 24.

[0107] During assembly, welding needs to be performed under compression, so the left wing panel is hydraulically compressed.

[0108] The left wing hydraulic pressing mechanism is composed of a second hydraulic cylinder 65, a linear guide rail, a frame, and a knurled pressing roller.

[0109] The hydraulic pressing and driving mechanism of the left fender includes: a second hydraulic cylinder 65, a fifth linear guide rail 64, a second frame 63, and a second knurled pressure roller 61. The second frame 63 is mounted on the slider 13 of the fifth linear guide rail 64. A reducer 51 and an AC motor are installed inside the second frame 63. The output shaft of the reducer 51 is equipped with a sprocket, and the sprocket chain 53 drives the knurled pressure roller to rotate to provide power for the transmission of the workpiece; the second pressure roller 61 bearing seat is mounted on the end face of the second frame 63, and the second pressure roller 61 is mounted on the second pressure roller 61 bearing seat. A sprocket is also installed at the end of the second pressure roller 61 for transmitting power; the left and right adjustment of the second frame 63 is achieved by the telescopic movement of the second hydraulic cylinder 65 below. The cylinder body of the second hydraulic cylinder 65 is mounted on the base 24, and the piston rod of the second hydraulic cylinder 65 is connected to the second frame 63 through a pin; the telescopic movement of the second hydraulic cylinder drives the frame to relax and press the fender.

[0110] The steel plate end face alignment device is used to ensure that the web and flange end faces are flush after the steel plate is transferred to the welding position.

[0111] The steel plate end alignment mechanism 4 consists of a second mounting bracket, a limit block, and a cylinder; the second mounting bracket is installed on the side of the frame and connected by bolts; when the workpiece is transported through the conveyor roller, the limit block of the steel plate end alignment mechanism 4 is extended through the cylinder to block the workpiece when the workpiece is transported into place, ensuring that the web and wing ends of the workpiece are aligned; after the steel plate is flush, the cylinder retracts the limit block 41.

[0112] The lower welding gun mechanism 178 is composed of a horizontal pneumatic support plate 32, a vertical pneumatic support plate 33 and a welding gun.

[0113] The welding gun assembly 34 is composed of a welding gun, a clamp, a mounting base, a guide wheel, a manual fine-tuning support plate, etc.

[0114] The pneumatic pallet consists of a cylinder, a seat, a slide, a linear guide, etc.

[0115] The pneumatic support plate is divided into a horizontal pneumatic support plate 32 and a vertical movable support plate, which are connected by a third mounting bracket 42 and are used for the horizontal and vertical movements of the welding gun mechanism 17 respectively.

[0116] The third mounting bracket 42 is connected to the frame by bolts. The horizontal pneumatic support plate 32 is connected to the third mounting bracket 42 by bolts.

[0117] The lower end support mechanism 3 consists of a bracket, a roller bearing seat and a roller, which supports the wing plate during the transmission of the H-beam.

[0118] The bracket is mounted on the base 24 of the gantry 2 by bolts, the roller bearing seat is mounted on the bracket by bolts, and the roller is mounted on the roller bearing seat.

[0119] The vertical pneumatic support plate 33 is mounted on the horizontal pneumatic support plate 32 by bolts, and the welding gun assembly 34 is mounted on the vertical pneumatic support plate 33 .

[0120] The sheet material automatic gripping robot 100 includes the sheet material automatic gripping robot 100 and a conveyor roller 200 disposed below the sheet material automatic gripping robot 100. The sheet material gripping robot can realize the functions of lifting the workpiece, moving the workpiece horizontally, and adjusting the two lifting devices longitudinally. The workpiece and the lifting device are connected by a second electromagnet 142 or a suction cup.

[0121] The sheet metal automatic gripping robot 100 comprises a truss 300, a trolley 400, a gripping lift arm, and a sling. The trolley 400 slides on the truss 300, the gripping lift arm is mounted on the trolley 400, and the sling is mounted on the gripping lift arm. The truss 300 is welded from section steel and features light weight, high rigidity, and an attractive appearance. Rails are mounted on the truss 300.

[0122] In some embodiments, the mobile trolley 400 includes a traveling trolley frame 122, a traveling drive mechanism 121, and traveling wheels; two sets of symmetrically arranged mobile trolleys 400, grabbing lifting arms, and slings are provided on the truss 300.

[0123] The trolley frame 122 is slidably connected to the truss 300 via the traveling wheels, and the traveling drive mechanism 121 is used to provide power for the movement of the trolley frame 122 .

[0124] In some embodiments, the travel drive mechanism 121 includes a first motor 124 and a first reducer that cooperates with each other. The first reducer is connected to the trolley frame 122 via a reducer bracket 126. The output end of the first reducer has a first gear 127. The truss 300 is provided with a first rack 500. The first gear 127 and the first rack 500 are meshed with each other. The travel drive mechanism 121 is used to provide power for the lateral movement of the mobile trolley 400 after grasping the workpiece.

[0125] At the same time, in order to prevent the trolley from moving off the track, a track clamp 123 is provided on the trolley frame 122 .

[0126] In some embodiments, the grabbing and lifting arm includes: a lifting frame 133, a slide 136, a second motor 134, and a second reducer 135125. The lifting frame 133 is mounted on the trolley frame 122, and is provided with a guide rail 131 and a second rack 132. The slide 136 is slidably mounted on the lifting frame 133 via the guide rail 131. The second motor 134 and the second reducer 135125 are mounted on the slide 136. The output end of the second reducer has a second gear, which meshes with the second rack 132. A sling is mounted at the bottom of the slide 136. The grabbing and lifting arm is driven by the second motor 134, which is reduced in speed by the second reducer, and drives the second gear and the second rack 132 to achieve lifting and lowering motion.

[0127] In some embodiments, a lifting device is installed at the lower end of the grabbing lifting arm, which is composed of a lifting body 141, a second electromagnet 142, and a spring 143.

[0128] Equipment workflow:

[0129] The worker inputs the H-beam size parameters through the touch screen and clicks the start button → the automatic sheet material grabbing robot 100 runs from the material rack to the material pile, grabs the web and wing plates and places them on the conveyor roller 200 in sequence. After placement, the sheet materials are automatically transferred to the next workstation. The entire process is fully automatic program-controlled and does not require human intervention.

[0130] The automatic sheet material grabbing robot 100 for the section steel production line provided in this case utilizes automatic loading. It is designed to automatically grab the sheet materials corresponding to the web and wing plates from the sheet material stack and place them in the corresponding positions on the conveyor roller 200. Throughout the entire process, workers only need to input the dimensional parameters of the steel section to be produced in advance and press the start button to automatically load the sheet materials. This device effectively reduces workers' labor intensity and increases efficiency by 2-3 times compared to traditional methods. It is an ideal device for section steel production lines and has been well received by users for its efficiency, convenience, and safety.

[0131] The worker inputs the H-shaped steel size parameters through the touch screen and clicks the start button → the sheet material automatic grabbing robot grabs the web and wing from the material rack and puts them on the conveyor roller → the web and wing are transferred from the loading area conveyor line to the end limit mechanism and stop → the wing turns over and the web lifts the turning machine to center the web, and then straightens the wing → the vertical adsorption mechanism of the wing lifts the wing, the electromagnet sucks it firmly, and then drives it to turn 90° through the oil cylinder → the wing turns over and the web lifts the turning machine to drive the wing close to the position where it almost touches the wing and stops, and the web lift mechanism lifts the web into place → the electromagnet releases the wing, and the wing turns over and the web lifts the turning machine to lift the web and wing Clamping → The transfer roller transfers the web and wing plate to the assembly gantry, the web lifting roller of the assembly gantry rises to position and stops, the electric-driven side push roller on the right is in position, and the hydraulic-driven side push roller on the left presses the H-shaped steel wing plate (in the height direction of the H-shaped steel) → The wing plate pressing roller on the assembly gantry presses the wing plate (in the width direction of the H-shaped steel), and the web plate pressing roller is lowered to press the web plate → The steel plate alignment mechanism at the front end of the assembly gantry aligns the end faces of the web and wing plate, the upper and lower welding guns are in position, started, and spot welding is performed. The transfer roller transfers the workpiece while the upper and lower welding guns spot weld the workpiece according to the set program. The entire process is fully automatic program controlled and does not require human intervention.

[0132] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horizontal automatic assembly machine for H-beams, characterized in that: include: Automatic sheet material grabbing robot, transmission roller, end limit mechanism, wing plate turning and web plate lifting and turning machine, assembly gantry; the automatic sheet material grabbing robot is used to grab the web and wing plate from the material rack and put it onto the transmission roller; multiple transmission rollers are arranged in sequence, and the transmission rollers are used to transfer the web and wing plate to the end limit mechanism; the wing plate turning and web plate lifting and turning machine is used to flip and adjust the web and wing plate transferred to the end limit mechanism, and the transmission roller is used to transfer the web and wing plate that have been flipped and adjusted by the wing plate turning and web plate lifting and turning machine into the assembly gantry to complete welding.

2. The H-beam horizontal automatic assembly machine according to claim 1, characterized in that: The flap turning and web lifting turning machine comprises a flipping positioner, a web lifting mechanism, and a flap vertical adsorption mechanism; the flipping positioner is installed on the ground, the web lifting mechanism is bolted to the frame of the flipping positioner, and the flap vertical adsorption mechanism is bolted to the flip arm of the flipping positioner; the flipping positioner has a 90° flipping function and a left and right centering function; the web lifting mechanism is used to adjust the height of the H-shaped steel web; the flap vertical adsorption mechanism is used to prevent the flap from falling and rubbing against the transmission roller when the flap is flipped; The flip positioner includes a base, a frame, a flip arm, a centering reducer, a servo motor, a centering screw rod, and an oil cylinder; The base is installed on the ground; The centering reducer is installed on the end face of the base and is driven by a servo motor. The centering reducer is used to drive the centering screw, which is used to drive the nut to drive the frame to move left and right. The left side of the centering screw is a left-handed thread and the right side is a right-handed thread, so that the frames on both sides can move synchronously to the middle or both sides at the same time. The frame is fixed to the upper plane of the base by an L-shaped sliding block.

3. The H-beam horizontal automatic assembly machine according to claim 2, characterized in that: It also includes a flip arm, and the side of the frame is processed with a flat surface and threaded holes for installing the web lifting mechanism; an oil cylinder is installed in the middle of the frame to drive the flip arm to rotate 90 degrees; the oil cylinder is installed with front and rear ear holes, and the cylinder body is installed on the frame through a pin shaft. The piston rod of the oil cylinder is connected to the flip arm through the pin shaft. A hole is processed at the front end of the frame. With the processed hole as the rotation point, the oil cylinder drives the flip arm to rotate 90 degrees.

4. The H-beam horizontal automatic assembly machine according to claim 3 is characterized in that: A transmission roller is installed at the upper end of the flip arm, and the transmission roller is installed on the flip arm through a seat bearing; the transmission roller is used to transmit the wing plate; a butterfly spring is directly installed on the seat bearing and the flip arm, and the butterfly spring is used to make the flip arm flip to 90 degrees, so that the transmission rollers on the left and right sides have an appropriate floating amount when centering and clamping the H-shaped steel. The side of the flip arm is processed with a flat surface and threaded holes for installing the vertical adsorption mechanism of the wing plate.

5. The H-beam horizontal automatic assembly machine according to claim 1, characterized in that: The web lifting mechanism includes a mounting frame, an AC servo motor, a screw lift, a third guide rod, and a roller; the mounting frame is connected to the frame of the flip positioner by bolts, and the screw lift is installed on the mounting frame. The AC servo motor drives the screw of the screw lift to extend and retract, driving the third guide rod to extend and retract, thereby adjusting the height of the roller. The end of the third guide rod is processed with an internal thread for connecting to the screw lift.

6. The H-beam horizontal automatic assembly machine according to claim 1, characterized in that: The vertical adsorption mechanism of the wing plate includes an electromagnet, an electromagnet mounting plate, a cylinder, a guide shaft, and a mounting bracket; the mounting bracket is connected to the flip arm by bolts, the cylinder is set on the mounting bracket by bolts, and holes are processed on both sides of the mounting bracket for installing the guide shaft; the middle of the electromagnet mounting plate is connected to the cylinder by threads, and the two sides are connected to the guide shaft by bolts. The electromagnet mounting plate can move up and down through the extension and contraction of the cylinder, and the electromagnet is mounted on the electromagnet mounting plate by bolts.

7. The H-beam horizontal automatic assembly machine according to claim 1, characterized in that: The assembly gantry includes: a gantry frame, a lifting and pressing platform, a web lifting mechanism, a right wing plate numerical control adjustment and drive mechanism, a left wing plate hydraulic pressing and drive mechanism, a steel plate end alignment mechanism, a lower welding gun mechanism, and a lower end support mechanism; The gantry is the main body and is installed on the ground. The lifting and pressing platform, web lifting mechanism, right wing plate CNC adjustment and drive mechanism, left wing plate hydraulic pressing and drive mechanism, steel plate end alignment mechanism, lower welding gun mechanism and lower end support mechanism are all installed on the gantry. The side push rollers of the right wing plate CNC adjustment and drive mechanism and the left wing plate hydraulic pressing and drive mechanism cooperate with each other to press the H-shaped steel wing plate in the height direction. The lifting and pressing platform is used to press the wing plate in the width direction. The web lifting mechanism is lowered to press the web. The steel plate end alignment mechanism is used to align the web and wing plate end faces. The upper and lower welding guns are in place, started, spot welding, and the workpiece is transported by the conveyor roller. The lower welding gun mechanism spot welds the workpiece according to the set program.

8. The H-beam horizontal automatic assembly machine according to claim 7, characterized in that: The gantry includes a base, a column and a top beam; a first linear guide rail for guiding the lifting and lowering of the pressing platform is installed on the column, and the first linear guide rail is connected to the column; the column is installed on the base, and a second linear guide rail is installed on the base, and the second linear guide rail is used to install the left wing plate hydraulic pressing and driving mechanism and the right wing plate CNC adjustment and driving mechanism; the top beam is installed on the column.

9. The H-beam horizontal automatic assembly machine according to claim 7, characterized in that: The lifting and pressing platform includes a lifting mechanism, a platform, a transverse sliding plate, a web pressing mechanism and a welding gun assembly, and a wing plate pressing roller; Linear guide sliders are installed on both sides of the platform. The linear guide sliders cooperate with the first linear guide installed on the side of the gantry column to guide the entire lifting and pressing platform when it rises and falls; a third linear guide and rack are installed on the upper surface of the platform. The third linear guide and rack are connected to the platform through bolts. The third linear guide is used to guide the translation of the transverse slide; the first mounting brackets of the hydraulic cylinder piston rod are installed on both sides of the upper surface of the platform. The piston rod of the hydraulic cylinder is connected to the first mounting bracket of the hydraulic cylinder piston rod through a pin shaft. The cylinder body of the hydraulic cylinder is installed on the top beam of the gantry by bolts. The extension and retraction of the hydraulic cylinder drives the platform to rise and fall; Two rollers for pressing the wing plates are respectively installed on the front and rear beams of the lifting platform; a bearing seat for the wing plate pressing roller is installed under the lifting platform, and the shafts at both ends of the wing plate pressing roller are installed in the bearings of the upper pressing roller bearing seat; The web pressing mechanism is installed on the lifting and pressing platform. After the lifting and pressing platform drives the web pressing mechanism and the welding gun assembly into place, the web pressing roller is driven by the first hydraulic cylinder to press the web. The welding gun assembly is installed on the web pressing roller to always maintain the height distance between the welding gun and the workpiece. The web pressing mechanism includes an upper welding gun translation slide, a first hydraulic cylinder, a first guide rod, and a guide wheel; The upper welding gun translation slide is installed on the slider of the linear guide rail. The welding gun translation slide is driven by the reducer and gear rack to achieve horizontal movement. A lateral guide wheel bracket is installed under the upper welding gun translation slide. The lateral guide wheel bracket is connected to the upper welding gun translation slide by bolts. A guide wheel is installed under the lateral guide wheel bracket. When the H-beam is assembled, the guide wheel rests on the side of the web of the H-beam to ensure the distance between the upper welding gun and the web of the H-beam. The cylinder body of the first hydraulic cylinder is connected to the upper welding gun translation slide through bolts; the first guide rod is connected to the piston rod of the hydraulic cylinder through threads; a guide wheel is installed at the front end of the first guide rod; a reducer and a servo motor are installed on the side of the first guide rod.

10. The H-beam horizontal automatic assembly machine according to claim 7, characterized in that: The web lifting mechanism is used for positioning H-shaped steel webs of different widths. The web lifting mechanism includes a mounting frame, a first AC servo motor, a screw lift, and a second guide rod. The mounting frame is installed on the frame of the right wing plate CNC adjustment and drive mechanism and the left wing plate hydraulic pressing and drive mechanism. A screw lift is installed on the mounting frame. The screw lift is driven to extend and retract by the first AC servo motor, driving the second guide rod to rise and fall. The second guide rod is connected to the telescopic rod of the screw lift by a thread; a roller is installed at the front end of the second guide rod.

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