Assembly gantry for horizontal type automatic assembly of H-shaped steel

Abstract

The invention discloses an assembly gantry for horizontal type automatic assembly of H-shaped steel. The assembly gantry comprises a portal frame, a lifting pressing platform, a web lifting mechanism, a right side wing plate numerical control adjusting and driving mechanism, a left side wing plate hydraulic pressing and driving mechanism, a steel plate end aligning mechanism, a lower welding gun mechanism and a lower end supporting mechanism. The portal frame serves as a main body and is installed on the ground, and the lifting pressing platform, the web lifting mechanism, the right side wing plate numerical control adjusting and driving mechanism, the left side wing plate hydraulic pressing and driving mechanism, the steel plate end aligning mechanism, the lower welding gun mechanism and the lower end supporting mechanism are all installed on the portal frame.

Description

Technical Field

[0001] The invention relates to the technical field of H-beam assembly, and more particularly to an assembly gantry for horizontal automatic assembly of H-beams. 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 times. The first time, a T-shape is formed, and then it is sent back. The second time, an H-shape can be assembled. The whole process is labor-intensive, with a low degree of automation and low production efficiency, and it is easy for workers to get injured or other accidents. Summary of the invention

[0003] The invention provides an assembly gantry for horizontal automatic assembly of H-shaped steels, in order to solve the technical problems existing in the background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An assembly gantry for horizontal automatic assembly of H-beams, comprising a gantry, a lifting and clamping platform, a web lifting mechanism, a right wing plate numerical control adjustment and drive mechanism, a left wing plate hydraulic clamping and drive mechanism, a steel plate end alignment mechanism, a lower welding gun mechanism, and a lower end support mechanism;

[0006] The gantry is the main body and is installed on the ground. The lifting and clamping platform, the web lifting mechanism, the right wing plate CNC adjustment and driving mechanism, the left wing plate hydraulic clamping and driving mechanism, the steel plate end alignment mechanism, the lower welding gun mechanism and the lower end support mechanism are all installed on the gantry;

[0007] 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 conveying roller. The lower welding gun mechanism spot welds the workpiece according to the set program.

[0008] In some embodiments, the gantry includes a base, a column and a top beam; a first linear guide rail for lifting and lowering the clamping 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 panel hydraulic clamping and driving mechanism and the right wing panel CNC adjustment and driving mechanism; the top beam is installed on the column.

[0009] In some embodiments, 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;

[0010] 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 clamping platform when it rises and falls; the 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 through bolts. The extension and retraction of the hydraulic cylinder drives the platform to rise and fall;

[0011] 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 pressing roller on the wing plate is installed under the lifting platform, and the shafts at both ends of the pressing roller on the wing plate are installed in the bearings of the upper pressing roller bearing seat;

[0012] The web pressing mechanism is installed on the lifting and clamping platform. After the lifting and clamping platform drives the web pressing mechanism and the welding gun assembly to be in 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;

[0013] The web pressing mechanism includes an upper welding gun translation slide, a first hydraulic cylinder, a first guide rod, and a guide wheel;

[0014] The upper welding gun translation slide is installed on the slider of the linear guide rail, and the welding gun translation slide is driven by a reducer and a gear rack to achieve lateral movement;

[0015] 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, and a guide wheel is installed under the lateral guide wheel bracket; when the H-beam is assembled, the guide wheel leans against 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;

[0016] The cylinder body of the first hydraulic cylinder is connected to the upper welding gun translation slide by bolts; the first guide rod is connected to the piston rod of the hydraulic cylinder by 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.

[0017] In some embodiments, 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 CNC adjustment and drive mechanism and the left wing hydraulic clamping and drive mechanism. The mounting frame is equipped with a screw lift, which 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.

[0018] In some embodiments, the right wing plate numerical control adjustment and drive mechanism includes a second AC servo motor, a reducer, a lead screw nut, a fourth linear guide rail, a first frame, and a first knurled pressure roller.

[0019] The first frame is installed on the slider of the fourth linear guide rail, and a reducer is installed inside the first frame, and the reducer is connected to the first frame by bolts; a sprocket is installed on the output shaft of the reducer, and the sprocket chain drives the first knurled pressure roller to rotate to provide power for the transmission of the workpiece; the first pressure roller bearing seat is installed on the end face of the first frame and connected by bolts; the first pressure roller is installed on the first pressure roller bearing seat, and a sprocket is also installed on the end of the first pressure roller for transmitting power; the left and right adjustment of the first frame is achieved by driving the screw nut to move through the reducer below, and the reducer is installed on the base.

[0020] In some embodiments, the hydraulic pressing and driving mechanism of the left fender includes: a second hydraulic cylinder, a fifth linear guide rail, a second frame, and a second knurled pressure roller. The second frame is installed on the slider of the fifth linear guide rail. A reducer and an AC motor are installed inside the second frame. A sprocket is installed on the output shaft of the reducer. The sprocket chain drives the knurled pressure roller to rotate to provide power for the transmission of the workpiece; the second pressure roller bearing seat is installed on the end face of the second frame, and the second pressure roller is installed on the second pressure roller bearing seat. A sprocket is also installed on the end of the second pressure roller for transmitting power; the left and right adjustment of the second frame is achieved by the telescopic movement of the second hydraulic cylinder below, the cylinder body of the second hydraulic cylinder is installed on the base, and the piston rod of the second hydraulic cylinder is connected to the second frame through a pin; the telescopic movement of the second hydraulic cylinder drives the frame to relax and press the fender.

[0021] In some embodiments, the steel plate end alignment mechanism includes a second mounting bracket, a limit stop, and a cylinder, and the limit stop is slidably installed on the second mounting bracket; when the workpiece is transmitted through the transmission roller, the limit stop is extended through the cylinder to block the workpiece when the workpiece is transmitted 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 stop.

[0022] Compared with the background technology, the present invention has the following beneficial effects:

[0023] After actual application on-site by customers, the equipment can complete the horizontal automated assembly of H-beams, greatly improving the assembly quality of workpieces, reducing assembly time, alleviating the labor intensity of workers, and avoiding work-related accidents that are prone to occur in manual operations. The equipment can operate uninterruptedly 24 hours a day. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-view drawing of an assembly gantry for horizontal automatic assembly of H-beams. Figure 1 In the figure, a is the front view, b is the side view, and c is the top view;

[0025] Figure 2 It is a schematic diagram of the gantry;

[0026] Figure 3 1. It is a schematic diagram of the lifting and compacting platform;

[0027] Figure 4 It is the belly plate lifting mechanism;

[0028] Figure 5 This is a schematic diagram of the numerical control adjustment and driving mechanism of the right wing;

[0029] Figure 6 It is a schematic diagram of the hydraulic clamping and driving mechanism of the left wing panel;

[0030] Figure 7 It is a schematic diagram of the steel plate end alignment mechanism;

[0031] Figure 8 It is a schematic diagram of the lower welding gun mechanism;

[0032] Illustration: 1-lifting and clamping 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-water Flat 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, 55-screw nut, 57-first frame, 61-second pressure roller, 63-second frame, 64-fifth linear guide, 65-second hydraulic cylinder, 71-roller, 72-first guide rod, 73-first mounting frame, 74-screw lifter, 75-first AC servo motor. DETAILED DESCRIPTION

[0033] 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 construed 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 the present application.

[0034] The following will be combined Figure 1-8 It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0035] Example

[0036] See also Figure 1-8 , an assembly gantry for horizontal automatic assembly of H-beams, comprising a gantry 2, a lifting and clamping platform 121, a web lifting mechanism 7, a right wing plate numerical control adjustment and driving mechanism 5, a left wing plate hydraulic clamping and driving mechanism, a steel plate end alignment mechanism 4, a lower welding gun mechanism 178, and a lower end support mechanism 3;

[0037] The gantry 2 is the main body, installed on the ground, and the lifting and clamping platform 121, the web lifting mechanism 7, the right wing plate numerical control adjustment and driving mechanism 5, the left wing plate hydraulic clamping and driving 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;

[0038] 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 conveying roller. The lower welding gun mechanism 178 spot welds the workpiece according to the set program.

[0039] The working process of the equipment is as follows:

[0040] The transmission roller conveys the web and wing plate to the assembly gantry, the web of the assembly gantry is lifted and stopped, the side push roller of the right wing plate CNC adjustment and drive mechanism 5 is in place, the side push roller of the left wing plate hydraulic pressing and drive mechanism presses 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 pressing roller is lowered to press the web → 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. The transmission roller conveys the workpiece while the upper and lower welding guns spot weld the workpiece according to the set program. The whole process is fully automatic program controlled and no human intervention is required.

[0041] The assembly gantry adopts a gantry structure, which is mainly composed of a gantry frame 2, a lifting and clamping platform 121, a web lifting mechanism 7, a right wing plate numerical control adjustment and driving mechanism 5, a left wing plate hydraulic clamping and driving mechanism, a steel plate end alignment mechanism 4, a lower welding gun mechanism 178, and a lower end support mechanism 3.

[0042] Gantry 2: The gantry 2 consists of a base 24, columns 23 and a top beam 21.

[0043] The column 23 is welded from rectangular tubes and annealed after welding. The column 23 is equipped with a first linear guide 22 for guiding the lifting and lowering of the clamping platform 121, and the first linear guide 22 is connected to the column 23 by bolts. The column 23 is installed on the base 24, and the column 23 and the base 24 are connected by bolts. The base 24 is equipped with a second linear guide 25, and the second linear guide 25 is connected to the base 24 by bolts. The second linear guide 25 is used to install the left wing hydraulic clamping and driving mechanism and the right wing CNC adjustment and driving mechanism 5; the top beam 21 is installed on the column 23, and the top beam 21 is connected to the column 23 by bolts;

[0044] The lifting and pressing platform 121 is composed of a lifting mechanism, a platform 12 , a transverse sliding plate 14 , a web pressing mechanism 16 , a welding gun assembly 34 , and a wing plate pressing roller 15 .

[0045] The platform 12 is welded from rectangular tubes and annealed 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; the 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, and the cylinder body of the first hydraulic cylinder 11 is installed on the top beam 21 of the gantry 2 by bolts. The expansion and contraction of the first hydraulic cylinder 11 drives the platform 12 to rise and fall.

[0046] Two transverse sliding plates 14 are mounted on three beams on the lifting and pressing platform 121 and connected by a third linear slide rail. The transverse sliding plates 14 are driven by a reducer 51 + rack and pinion to achieve transverse movement.

[0047] Two rollers for pressing the wing plates are respectively installed on the front and rear beams of the lifting platform 12. A bearing seat of 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.

[0048] Web pressing mechanism 16 and welding gun assembly 34: The web pressing mechanism 16 is installed on the lifting and clamping platform 121. After the lifting and clamping platform 121 drives the web pressing mechanism 16 and welding gun assembly 34 to the right position, the web clamping cylinder drives the web clamping roller to clamp the web. The welding gun assembly 34 is installed on the web clamping roller to always maintain the height distance between the welding gun and the workpiece.

[0049] 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.

[0050] The upper welding gun translation slide is installed on the slider 13 of the linear guide rail and 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.

[0051] 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, and 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 welding gun and the web of the H-beam.

[0052] The cylinder body of the first hydraulic cylinder 11 is connected to the upper welding gun translation slide by bolts; the first guide rod 72 is connected to the piston rod of the hydraulic cylinder by threads; a guide wheel is installed at the front end of the first guide rod 72; a reducer 51 and a servo motor are installed 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, and the welding gun is installed at the other end of the welding gun clamp; the rotation of the reducer 51 causes the welding gun clamp to rotate, thereby playing the function of adjusting the welding gun angle.

[0053] The web lifting mechanism 7 is used for positioning the webs of H-shaped steels of different widths, and the webs are lifted and lowered by a lifter. At the same time, in order to meet the requirements of H-shaped steels of different heights, the device can be moved in a centering manner.

[0054] 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 .

[0055] The mounting frame is installed on the frame of the right wing CNC adjustment and drive mechanism 5 and the left wing hydraulic clamping 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.

[0056] This workstation is assembled at 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.

[0057] The right wing plate 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.

[0058] The first frame 57 is installed on the slider 13 of the fourth linear guide 54 and connected to the slider 13 by bolts; a reducer 51 and an AC motor are installed inside the frame, and the reducer 51 is connected to the frame by bolts; a sprocket is installed on the output shaft of the reducer 51, and the sprocket chain 53 drives the knurled roller to rotate to provide power for the transmission of the workpiece; the roller bearing seat is installed on the end face of the frame and connected by bolts; the roller is installed on the roller bearing seat, and a sprocket is also installed at the end of the roller to transmit power. The left and right adjustment of the frame is driven by the reducer 51 and the servo motor below to drive the screw nut 55 to move, and the reducer 51 is installed on the base 24.

[0059] During assembly, welding needs to be performed under compression, so the left wing panel is hydraulically compressed.

[0060] The left wing plate hydraulic pressing mechanism is composed of a second hydraulic oil cylinder 65, a linear guide rail, a frame, and a knurled pressing roller.

[0061] The hydraulic pressing and driving mechanism of the left wing plate includes: a second hydraulic cylinder 65, a fifth linear guide 64, a second frame 63, and a second knurled pressing roller 61. The second frame 63 is installed on the slider 13 of the fifth linear guide 64. A reducer 51 and an AC motor are installed inside the second frame 63. A sprocket is installed on the output shaft of the reducer 51. The sprocket chain 53 drives the knurled pressing roller to rotate to provide power for the transmission of the workpiece; the bearing seat of the second pressing roller 61 is installed on the end face of the second frame 63, and the second pressing roller 61 is installed on the bearing seat of the second pressing roller 61. A sprocket is also installed at the end of the second pressing 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 installed 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 wing plate.

[0062] The steel plate end face alignment device is used to ensure that the web plate and the wing plate end faces are flush after the steel plate is transferred to the welding position.

[0063] The steel plate end alignment mechanism 4 is composed of a second mounting bracket, a limit stopper, and a cylinder; the second mounting bracket is mounted on the side of the frame and connected by bolts; when the workpiece is transmitted through the transmission roller, the limit stopper of the steel plate end alignment mechanism 4 is extended through the cylinder to block the workpiece when the workpiece is transmitted 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 stopper 41.

[0064] 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.

[0065] The welding gun assembly 34 is composed of a welding gun, a clamp, a mounting seat, a guide wheel, a manual fine-tuning support plate, etc.

[0066] The pneumatic pallet is composed of a cylinder, a frame, a slide plate, a linear guide rail, etc.

[0067] 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.

[0068] 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.

[0069] The lower end support mechanism 3 is composed of a bracket, a roller bearing seat and a roller, which supports the wing plate during the transmission of the H-beam.

[0070] 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.

[0071] The vertical pneumatic support plate 33 is mounted on the horizontal pneumatic support plate 32 by means of bolts, and the welding gun assembly 34 is mounted on the vertical pneumatic support plate 33 .

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembly gantry for automatic horizontal assembly of H-beams, characterized in that: It includes a gantry, a lifting and clamping platform, a web lifting mechanism, a right wing plate numerical control adjustment and driving mechanism, a left wing plate hydraulic clamping and driving 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 clamping platform, the web lifting mechanism, the right wing plate CNC adjustment and driving mechanism, the left wing plate hydraulic clamping and driving mechanism, the steel plate end alignment mechanism, the lower welding gun mechanism and the 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 conveying roller. The lower welding gun mechanism spot welds the workpiece according to the set program.

2. The assembly gantry for automatic horizontal assembly of H-beams according to claim 1, characterized in that: The gantry includes a base, a column and a top beam; a first linear guide rail for lifting and lowering the clamping 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 clamping and driving mechanism and the right wing plate CNC adjustment and driving mechanism; the top beam is installed on the column.

3. The assembly gantry for horizontal automatic assembly of H-beams according to claim 2, 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 clamping platform when it rises and falls; the 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 through 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 pressing roller on the wing plate is installed under the lifting platform, and the shafts at both ends of the pressing roller on the wing plate are installed in the bearings of the upper pressing roller bearing seat; The web pressing mechanism is installed on the lifting and clamping platform. After the lifting and clamping platform drives the web pressing mechanism and the welding gun assembly to be in 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, and the welding gun translation slide is driven by a reducer and a gear rack to achieve lateral movement; 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, and a guide wheel is installed under the lateral guide wheel bracket; when the H-beam is assembled, the guide wheel leans against 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 by bolts; the first guide rod is connected to the piston rod of the hydraulic cylinder by 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.

4. The assembly gantry for automatic horizontal assembly of H-beams according to claim 3, 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 clamping and drive mechanism. The mounting frame is equipped with a screw lift, which 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.

5. The assembly gantry for automatic horizontal assembly of H-beams according to claim 4, characterized in that: The right wing plate numerical control adjustment and driving mechanism includes a second AC servo motor, a reducer, a screw nut, a fourth linear guide rail, a first frame, and a first knurled pressure roller. The first frame is installed on the slider of the fourth linear guide rail, and a reducer is installed inside the first frame, and the reducer is connected to the first frame by bolts; a sprocket is installed on the output shaft of the reducer, and the sprocket chain drives the first knurled pressure roller to rotate to provide power for the transmission of the workpiece; the first pressure roller bearing seat is installed on the end face of the first frame and connected by bolts; the first pressure roller is installed on the first pressure roller bearing seat, and a sprocket is also installed on the end of the first pressure roller for transmitting power; the left and right adjustment of the first frame is achieved by driving the screw nut to move through the reducer below, and the reducer is installed on the base.

6. The assembly gantry for automatic horizontal assembly of H-beams according to claim 5, characterized in that: The hydraulic pressing and driving mechanism of the left wing plate includes: a second hydraulic cylinder, a fifth linear guide rail, a second frame, and a second knurled pressure roller. The second frame is installed on the slider of the fifth linear guide rail. A reducer and an AC motor are installed inside the second frame. A sprocket is installed on the output shaft of the reducer. The sprocket chain drives the knurled pressure roller to rotate to provide power for the transmission of the workpiece; the second pressure roller bearing seat is installed on the end face of the second frame, the second pressure roller is installed on the second pressure roller bearing seat, and a sprocket is also installed on the end of the second pressure roller for transmitting power; the left and right adjustment of the second frame is achieved by the telescopic movement of the second hydraulic cylinder below, the cylinder body of the second hydraulic cylinder is installed on the base, and the piston rod of the second hydraulic cylinder is connected to the second frame through a pin shaft; the telescopic movement of the second hydraulic cylinder drives the frame to relax and press the wing plate.

7. The assembly gantry for automatic horizontal assembly of H-beams according to claim 6, characterized in that: The steel plate end alignment mechanism includes a second mounting bracket, a limit stopper, and a cylinder, wherein the limit stopper is slidably mounted on the second mounting bracket; when the workpiece is transmitted through the transmission roller, the limit stopper is extended through the cylinder to block the workpiece when the workpiece is transmitted into place, thereby ensuring that the web and wing ends of the workpiece are aligned; after the steel plates are flush, the cylinder retracts the limit stopper.

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