Welding machining device for road metal guardrail

Abstract

The invention relates to a road metal guardrail welding machining device which comprises a rack and a mounting seat arranged on the rack in a lifting mode, the rack is provided with a lifting part for driving the mounting seat to ascend and descend, the mounting seat is rotationally provided with a fixing cylinder, a grating column is movably located in the fixing cylinder, and the two ends of the grating column protrude out of the fixing cylinder. The fixing cylinder is provided with a material returning opening for the grille columns to slide out in the radius direction of the fixing cylinder, the two cross beams are located on the two sides of the fixing cylinder correspondingly, and the rack is provided with a moving assembly for driving the two cross beams to slide synchronously, a positioning assembly for positioning and fixing the grille columns and a welding assembly for welding the grille columns. The two sets of positioning assemblies and the two sets of welding assemblies correspond to the two ends of the fixing cylinder. The method has the effects that the overturning step during welding of the cross beam and the grating column is reduced, the welding automation degree and the welding efficiency are improved, meanwhile, the consistency of the weld penetration depth and the weld width is kept, and the mechanical property of the weld is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal welding, and in particular to a road metal guardrail welding processing device. Background Art

[0002] Common road metal guardrails 8 Figure 1 As shown, the road metal guardrail 8 includes a column 83 fixed to the road surface, two beams 81 detachably fixed between two adjacent columns 83, and a plurality of grille columns 82 for filling the gaps between the two beams 81. The beams 81 and the grille columns 82 are usually fixed by carbon dioxide gas shielded welding.

[0003] The welding processing device currently commonly used for welding the crossbeam 81 and the grid column 82 includes a frame, a welding gun and a manipulator. The welding gun is installed on the manipulator. During welding, the technician fixes the crossbeam 81 and the grid column 82 horizontally on the frame, and then the manipulator drives the welding gun to weld a group of adjacent two sides of multiple grid columns 82 in turn. Then the manipulator adjusts the angle position of the welding gun and repeats the above operation to weld the remaining three groups of adjacent two sides at both ends of the grid column 82 in turn.

[0004] With regard to the above-mentioned related technologies, due to the limitation of the position of the manipulator and the frame, it is not easy to weld the side of the grid column 82 close to the frame. After the welding of two adjacent groups of grid columns 82 is completed, technicians are required to flip the crossbeam 81 and the grid column 82 and complete the welding. The degree of automation is low and the welding efficiency is low. At the same time, due to the obstruction of the manipulator by the grid column 82, it is not easy for the manipulator to keep the inclination angle of the welding gun consistent with the two adjacent sides, so that the depth and width of the welding pool are inconsistent, that is, the molten depth and the molten width are inconsistent. For example, when the right welding method is adopted, when welding the horizontal side of a group of adjacent sides, the heat generated by the welding gun is concentrated on the welding pool. When welding the vertical side, the heat generated by the welding gun is concentrated on the crossbeam 81 and the grid column 82. At this time, the molten depth of the vertical side is less than the molten depth of the horizontal side, and the molten width of the vertical side is greater than the molten width of the horizontal side, so that the shape of the weld at the connection between the two sides does not match and the weld quality is inconsistent, thereby affecting the mechanical properties of the weld. Summary of the invention

[0005] In order to reduce the flipping steps when welding beams and grid columns, improve the degree of welding automation and welding efficiency, while maintaining the consistency of weld penetration depth and weld width, and improving the mechanical properties of the weld, the present application provides a road metal guardrail welding processing device.

[0006] The present application provides a road metal guardrail welding processing device adopts the following technical solution: A road metal guardrail welding processing device comprises a frame and a mounting seat which is lifted and arranged on the frame, a lifting member for driving the mounting seat to lift and lower is arranged on the frame, a fixing cylinder is rotatably arranged on the mounting seat, a grille column is movably located in the fixing cylinder, and two ends of the grille column protrude from the fixing cylinder, a material withdrawal port for the grille column to slide out along the radial direction of the fixing cylinder is provided on the fixing cylinder, two cross beams are respectively located on both sides of the fixing cylinder, a moving component for driving the two cross beams to slide synchronously, a positioning component for positioning and fixing the grille column, and a welding component for welding the grille column are arranged on the frame, and two groups of the positioning component and the welding component are provided, and the two groups of the positioning component and the two groups of the welding component correspond to the two ends of the fixing cylinder; The welding assembly includes a welding gun movably arranged on the end side of the fixed cylinder, the welding gun is arranged at an angle toward the side of the grid column, two welding guns are provided, and the two welding guns are evenly spaced along the circumference direction of the fixed cylinder, and the mounting seat is provided with a driving member for driving the fixed cylinder to rotate, an adjusting member for driving the two welding guns to move toward the fixed cylinder, and a synchronizing member for making the two welding guns move synchronously along the side of the grid column. After the grid column is positioned, the adjusting member moves the welding gun to the connection between the two adjacent sides of the grid column, and the opening direction of the material withdrawal port is upward.

[0007] By adopting the above technical solution, when welding is required, the moving assembly drives the two beams to move to the welding position, and then the technician places a grid column in the fixed tube. At this time, the welding gun is not easy to hinder the movement of the grid column, and the opening direction of the material withdrawal port is upward. This is the initial position of the welding gun and the fixed tube.

[0008] Then the positioning assembly positions the grille column in the positioning cylinder, adjusts the grille column and places it on the axis of the fixed cylinder. At this time, the welding gun corresponds to the vertical side of the grille column. At the same time, the adjusting part drives the welding gun to move toward the direction close to the fixed cylinder, so that the welding gun is close to the side of the grille column and faces the connection between the adjacent sides of the grille column. Then the lifting part drives the mounting seat to rise, so that the fixed cylinder and the grille column rise synchronously, so that the grille column is located between the two beams. This is the welding position of the grille column.

[0009] Then the welding gun works, and the synchronous part drives the two welding guns to slide synchronously to realize the welding of the four vertical sides at both ends of the grating column. Then the welding gun stops working, and the adjusting part drives the two welding guns to move away from the grating column synchronously. At the same time, the synchronous part and the positioning assembly are reset to make the welding gun in the initial position. Then the driving part drives the fixed cylinder to rotate so that the opening direction of the material withdrawal port is toward the sliding direction of the beam. At this time, the two welding guns correspond to the two horizontal sides of the grating column respectively, and then the positioning assembly positions and fixes the grating column again. At the same time, the adjusting part and the synchronous part drive the two welding guns to move synchronously to realize the welding of the four horizontal sides at both ends of the grating column, thereby reducing the flipping steps when welding the beam and the grating column, and improving the degree of welding automation and welding efficiency.

[0010] Then the moving component drives the crossbeam and the welding and the grille column on the crossbeam to slide, so that the grille column slides out from the withdrawal port, and the crossbeam slides to the welding position of the next grille column. Then the driving part drives the fixed cylinder to rotate until the opening direction of the withdrawal port is facing upward. At the same time, the lifting part drives the mounting seat and the fixed cylinder to descend to the loading position of the grille column to facilitate the next loading.

[0011] When welding different sides of the grid column, the inclination angle of the welding gun and the side of the grid column is always kept consistent, so that the heat generated by the welding gun can act stably and evenly on the connection between the grid column and the crossbeam, keeping the molten pool's depth and width consistent, thereby making the depth, width and shape of the weld consistent. This helps to reduce welding defects such as porosity and slag inclusions, and improve the mechanical properties of the weld.

[0012] Optionally, the synchronous part includes a guide plate arranged on the end side of the fixed cylinder, the guide plate corresponds to the fixed cylinder, a synchronous block is slidably arranged on the guide plate, two synchronous blocks are provided, the two synchronous blocks correspond one-to-one to the two welding guns, the welding guns are provided on the synchronous block, a guide hole for sliding the synchronous block is provided on the guide plate, the opening direction of the guide hole is consistent with the opening direction of the return port, a synchronous plate corresponding to the guide plate is coaxially arranged on the fixed cylinder, the synchronous plate is located on the side of the guide plate away from the welding gun, two inclined synchronous grooves are provided on the synchronous plate, a synchronous column is provided on the synchronous block, the two synchronous columns correspond one-to-one to the two synchronous grooves, the synchronous column is located in the synchronous groove and movably pressed against the inner side wall of the synchronous groove, and a first power member for driving the synchronous plate to rotate is provided on the fixed cylinder.

[0013] By adopting the above technical solution, when the adjusting member drives the welding gun close to the grid column, the first power member drives the synchronous plate to rotate. Since the synchronous groove is arranged obliquely, the synchronous column is pressed against the inner wall of the synchronous groove, and the synchronous column moves in the synchronous groove. At the same time, the synchronous block slides in the guide hole, and the welding gun moves in the direction of the guide hole, so that the two welding guns can move synchronously along the vertical side of the grid column, saving power source and improving operation stability. At the same time, the inclination angles of the two welding guns are relatively consistent with the welding direction, thereby improving the consistency of the weld.

[0014] Optionally, the positioning assembly includes a positioning rod slidably arranged in the fixed cylinder, a sliding groove is provided on the fixed cylinder, the positioning rod is located in the sliding groove and movably fits with the inner wall of the sliding groove, three positioning rods are provided, the three positioning rods are arranged at 90° intervals along the circumference direction of the fixed cylinder and avoid the material return port, one end of the positioning rod close to the fixed cylinder is movably pressed against the outer wall of the grille column, and a rotating part is provided on the mounting seat to drive the three positioning rods to slide close to each other.

[0015] By adopting the above technical solution, after the grille column is transported into the fixed tube, the rotating part drives the three positioning rods to slide together synchronously, and makes one end of the positioning rod close to the fixed tube press against the outer wall of the grille column. At this time, the two positioning rods are close to each other and clamp the two side walls of the grille column. At the same time, the third positioning rod presses against the side wall of the grille column close to the mounting seat, so as to align the grille column and make the grille column on the axis of the fixed tube, thereby realizing the positioning of the grille column, improving the accuracy of the positioning of the grille column, and reducing the labor intensity of technicians in manually placing the grille column.

[0016] Optionally, the rotating member includes a sliding column arranged on the positioning rod, a rotating plate is coaxially rotatably arranged on the fixed cylinder, three rotating holes are opened on the rotating plate, the rotating holes are arranged at an angle, the three sliding columns correspond to the three rotating holes one by one, the sliding column is movably located in the rotating hole and movably pressed against the inner side wall of the rotating hole, and a second power member for driving the rotating plate to rotate is arranged on the fixed cylinder.

[0017] By adopting the above technical solution, when positioning the grille column, the second power member drives the rotating plate to rotate. Since the rotating hole is arranged obliquely, the sliding column is pressed against the inner wall of the rotating hole, and the sliding column slides in the rotating hole, so that the sliding column drives the positioning rod to slide toward the direction close to the fixed tube, thereby realizing the synchronous sliding approach of the three positioning rods, which is convenient for positioning and fixing the grille column.

[0018] Optionally, the adjusting member includes an adjusting block slidably arranged on the synchronization block, the synchronization block is provided with an adjusting groove for the adjusting block to slide, the adjusting groove is arranged at an angle of 45°, the adjusting block is tightly pressed against the inner side wall of the adjusting groove, the welding gun is arranged on the adjusting block, a sliding rod is elastically and slidably arranged on the synchronization block, one end of the sliding rod is movably protruding from the side wall of the synchronization block, the other end of the sliding rod is connected to the adjustment block, and limiting plates are fixed on two relatively arranged positioning rods, and the protruding end of the sliding rod is movably pressed against the limiting plate.

[0019] By adopting the above technical scheme, when the positioning rod slides in the direction close to the fixed tube, the positioning rod drives the limit plate to slide and presses against the protruding end of the sliding rod, so that the sliding rod drives the adjusting block to slide in the adjusting groove. Since the adjusting groove is arranged obliquely, the welding gun moves toward the grid column, and at the same time, the output end of the welding gun moves toward the connection between the two adjacent sides of the grid column until the positioning rod presses against the outer wall of the grid column. At this time, the welding gun is close to the side of the grid column, and the output end of the welding gun is facing the connection between the two adjacent sides of the grid column, so that the grid column is positioned and the welding gun moves to the welding position at the same time, which improves the efficiency of equipment operation and saves power source. At the same time, for grid columns of different sizes, when the positioning rod positions them, the adjusting block slides with the sliding of the positioning rod. At this time, the welding gun is still close to the side of the grid column, and the output end of the welding gun is always facing the connection between the two adjacent sides of the grid column, so as to adapt to the welding of grid columns of different sizes.

[0020] After welding is completed, the positioning rod slides away from the fixed cylinder, separating the positioning rod from the grid column. At this time, the sliding rod slides away from the fixed cylinder under the elastic force, causing the adjustment block and the welding gun to slide along the adjustment groove and away from the grid column. When the fixed cylinder rotates subsequently, the welding gun is not easy to come into contact with the grid column.

[0021] Optionally, the driving member includes a driven gear coaxially arranged on the fixed cylinder, the driven gear is in the shape of a semi-toothed ring, a driving gear is rotatably arranged on the mounting seat, the driving gear is meshed with the driven gear, and a third power member for driving the driving gear to rotate is arranged on the mounting seat.

[0022] By adopting the above technical solution, when the welding gun completes welding of the vertical side of the grid column, the second power member works to drive the welding gun away from the grid column, and then the first power member works to make the welding gun slide to the initial position, and then the third power member works to drive the driving gear to rotate, thereby driving the driven gear to rotate, so that the fixed cylinder rotates to the moving direction of the withdrawal port toward the crossbeam, and then the moving assembly drives the crossbeam and the grid column on the welding and crossbeam to slide, so that the grid column slides out from the withdrawal port, so that the next welding position of the crossbeam is opposite to the fixed cylinder, and then the third power member drives the driving gear to reverse, so that the withdrawal port of the fixed cylinder faces upward, which is convenient for the next welding.

[0023] Optionally, the moving component includes a support frame slidably arranged on the frame, two beams are placed relatively on the support frame, a locking structure for fixing the beams is provided on the support frame, a screw rod is rotatably arranged on the frame, a moving nut is coaxially threadedly assembled on the screw rod, the moving nut is connected to the support frame, a fourth power part for driving the screw rod to rotate is provided on the frame, and a grinding component for grinding the side walls of the two beams close to each other is also provided on the frame.

[0024] By adopting the above technical solution, during processing, the technicians first place the two beams on the support frame and fix the beams through the locking structure, and then the fourth power member works to drive the screw to rotate, thereby driving the moving nut and the support frame to slide synchronously until the first position where the two beams need to be welded corresponds to the fixed tube, and then the first grid column is welded. After welding is completed, the fourth power member continues to work and drives the beam to move to the next position where welding is required to correspond to the fixed tube, realizing automatic feeding, and welding the grid columns in sequence.

[0025] When the beam moves, the grinding assembly grinds the side walls of the two beams that are close to each other, thereby removing impurities such as oxides, rust and dirt on the surface of the beam to be welded, reducing the generation of pores and cracks, and improving the strength and reliability of the weld.

[0026] Optionally, the grinding assembly includes a grinding wheel rotatably set on the support frame, and there are two grinding wheels. The two grinding wheels are arranged opposite to each other, and the two grinding wheels are respectively in contact with the side walls of two beams close to each other. The grinding wheel is coaxially provided with a driving gear, and the frame is provided with two fixed racks, the two fixed racks correspond one-to-one to the two driving gears, and the driving gear is meshed with the fixed racks.

[0027] By adopting the above technical solution, when the support frame slides, it drives the driving gear to move along the fixed rack. At this time, the fixed rack drives the driving gear to rotate, thereby driving the grinding wheel to rotate, so that the grinding wheel grinds the surface of the beam to be welded. After the previous welding step is completed, the grinding wheel is driven by the sliding of the support frame to grind the next welding position, and the position after grinding is moved to the welding position, thereby improving the processing efficiency. At this time, the beam has just been ground, ensuring the cleanliness of the beam surface, reducing the risk of the grinding position being contaminated again, and improving the quality of the weld.

[0028] Optionally, a clamping wheel is rotatably provided at one end of the positioning rod close to the fixing tube, and the outer peripheral wall of the clamping wheel is movably pressed against the outer side wall of the grille column.

[0029] By adopting the above technical solution, when the positioning rod is positioning the grille column, the clamping wheel at the end of the positioning rod is pressed against the outer wall of the grille column, reducing the risk of scratching the outer wall of the grille column and improving the surface quality of the guardrail after welding is completed.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. Two groups of four welding guns are used to simultaneously weld the four parallel sides of the two ends of the grid column, which improves the efficiency of the welding process. Since the installation positions and movement paths of the two welding guns on one side are arranged in a circular symmetry, the thermal stress generated at the connection between the two sides of the grid column during welding can be effectively reduced, thereby reducing the risk of metal deformation at the weld after welding. After the four sides of the grid column are welded, the fixed cylinder is rotated to make the four welding guns correspond to the remaining four sides of the grid column, reducing the flipping steps when welding the crossbeam and the grid column, improving the degree of welding automation and welding efficiency. During welding, the inclination angle between the welding gun and the side of the grid column and the movement direction of the welding gun are kept consistent, so that the heat generated by the welding gun acts stably and evenly on the connection between the grid column and the crossbeam, thereby keeping the melting depth and melting width of the molten pool consistent, and keeping the depth, width and shape of the weld consistent, which helps to reduce welding defects such as pores and slag inclusions and improve the mechanical properties of the weld. 2. The second power member drives the rotating plate to rotate, so that the three positioning rods slide close to each other synchronously and respectively abut against the other three side walls of the grille column except the one facing upward, so as to realize the positioning of the grille column. Then the lifting member drives the mounting seat to rise, so that the grille column is located at the welding position between the two beams, which reduces the labor intensity of technicians in manually placing the grille column and improves the accuracy of positioning the grille column. At the same time, the limit plates on the two relatively arranged positioning rods press against the sliding rod and drive the adjusting block to slide in the adjusting groove. Since the adjusting groove is arranged at an angle of 45°, when the positioning rod presses against the side wall of the grating column, the output end of the welding gun is close to the side of the grating column, and the output end of the welding gun is toward the connection between the two adjacent sides of the grating column. When the grating column is of different sizes, the sliding distance of the positioning rod when it presses against the grating column changes. Since the adjusting block slides with the sliding of the positioning rod, the welding gun is still close to the side of the grating column at this time, and the output end of the welding gun is always toward the connection between the two adjacent sides of the grating column to adapt to the welding of grating columns of different sizes.

[0031] 3. The fourth power member drives the screw to rotate, thereby driving the moving nut and the support frame to slide synchronously, and moves the first position where the two beams need to be welded to correspond to the fixed cylinder. At the same time, the support frame drives the driving gear to move along the fixed rack. At this time, the fixed rack drives the driving gear to rotate, thereby driving the grinding wheel to rotate and grind the side walls of the two beams close to each other, thereby removing oxides, rust, dirt and other impurities on the surface of the beam to be welded, reducing the generation of pores and cracks, and improving the strength and reliability of the weld. After grinding is completed, the fourth power member continues to work and repeats the above steps to realize automatic feeding, and welds the grid columns in turn to improve the welding process efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the guardrail; Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 3 It is a schematic diagram of the connection structure of the positioning rod, the fixing tube and the mounting seat; Figure 4 It is a schematic diagram of the status of the rotating plate, the limit plate, the positioning rod, the synchronization block and the welding gun before welding; Figure 5 It is an exploded schematic diagram of the welding gun, guide plate, synchronization plate and fixed cylinder; Figure 6 It is a schematic diagram of the connection structure of the driving gear, the driven gear and the fixed cylinder.

[0033] Figure numerals: 1, frame; 11, mounting seat; 12, lifting member; 2, fixing cylinder; 21, ear plate; 22, material withdrawal port; 3, welding assembly; 31, welding gun; 32, synchronous member; 321, guide plate; 322, synchronous block; 323, guide hole; 324, synchronous plate; 325, synchronous groove; 326, synchronous column; 327, first power member; 33, adjusting member; 331, adjusting block; 332, adjusting groove; 333, sliding rod; 334, limiting plate; 34, driving member; 341, driven gear; 342, driving gear; 343, third power member Part; 4, positioning assembly; 41, positioning rod; 42, sliding groove; 43, rotating member; 431, sliding column; 432, rotating plate; 433, rotating hole; 434, second power member; 44, tightening wheel; 5, moving assembly; 51, supporting frame; 52, screw rod; 53, moving nut; 54, fourth power member; 55, locking structure; 551, abutment block; 552, abutment screw; 6, grinding assembly; 61, grinding wheel; 62, driving gear; 63, fixed rack; 7, feeding assembly; 8, guardrail; 81, crossbeam; 82, grille column; 83, column. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a road metal guardrail welding processing device. Figure 2 and Figure 3 A road metal guardrail welding processing device includes a frame 1 placed horizontally on the ground and a mounting seat 11 connected to the top of the frame 1 by lifting. The frame 1 is provided with a lifting member 12 for driving the mounting seat 11 to lift. In the present application, the lifting member 12 is set as a lifting electric push rod. A fixed cylinder 2 is rotatably connected to the mounting seat 11. The rotation axis of the fixed cylinder 2 is consistent with the width direction of the frame 1. Ear plates 21 are fixed at both ends of the fixed cylinder 2. A grille column 82 is movably located in the fixed cylinder 2, and both ends of the grille column 82 protrude from the fixed cylinder 2. The cylinder 2 is arranged, and an ejection port 22 is opened on the fixed cylinder 2 for the grille column 82 to slide out along the radial direction of the fixed cylinder 2. A moving component 5 is arranged on the frame 1 for driving the two cross beams 81 to slide synchronously. The two cross beams 81 are respectively located on both sides of the fixed cylinder 2. The fixed cylinder 2 is also provided with a positioning component 4 for positioning the grille column 82 and a welding component 3 for welding the grille column 82. Two groups of positioning components 4 and two groups of welding components 3 are provided, and the two groups of positioning components 4 and the two groups of welding components 3 correspond to the two ends of the fixed cylinder 2.

[0036] In order to realize the automatic loading of the grid column 82, the frame 1 is provided with a loading assembly 7 for conveying the grid column 82 into the fixed cylinder 2. Figure 2The loading assembly 7 includes a conveyor belt arranged on the frame 1, which transports the grid columns 82 to be welded. The frame 1 is provided with a loading electric push rod that pushes the grid columns 82 on the conveyor belt into the fixed cylinder 2 along the axis of the fixed cylinder 2.

[0037] Reference Figure 3 , Figure 4 and Figure 5 The positioning assembly 4 includes a positioning rod 41 slidably connected to the ear plate 21. A sliding groove 42 is provided in the ear plate 21 for the positioning rod 41 to slide. The positioning rod 41 is movably fitted with the inner wall of the sliding groove 42. There are three positioning rods 41. The three positioning rods 41 are arranged at 90° intervals along the circumference direction of the fixed cylinder 2 and avoid the return port 22. The sliding direction of the positioning rod 41 is consistent with the radial direction of the fixed cylinder 2, and one end of the positioning rod 41 close to the fixed cylinder 2 is rotatably connected to a clamping wheel 44. The rotation axis of the clamping wheel 44 is parallel to the rotation axis of the fixed cylinder 2, and the outer peripheral wall of the clamping wheel 44 is movably pressed against the outer wall of the grille column 82.

[0038] In order to drive the three positioning rods 41 to slide toward each other, a rotating member 43 is provided on the mounting seat 11. Figure 3 , Figure 4 and Figure 5 The rotating member 43 includes a sliding column 431 fixed on the positioning rod 41, and a rotating plate 432 corresponding to the ear plate 21 is coaxially rotatably connected on the fixed cylinder 2, and the rotating plate 432 is located on the side of the ear plate 21 close to the other side ear plate 21. Three rotating holes 433 are opened on the rotating plate 432, and the rotating holes 433 are arranged obliquely. The three sliding columns 431 correspond to the three rotating holes 433 one by one. The sliding columns 431 are movably located in the rotating holes 433 and movably pressed against the inner side walls of the rotating holes 433. A second power member 434 that drives the rotating plate 432 to rotate is provided on the fixed cylinder 2. In the present application, the second power member 434 is provided with an adjusting electric push rod, one end of which is rotatably connected to the ear plate 21, and the output end of the adjusting electric push rod is rotatably connected to the rotating plate 432.

[0039] When welding is required, the moving assembly 5 moves the two beams 81 to the welding position, and then the conveyor belt transports the grid column 82 to the corresponding position of the fixed tube 2, and then the loading electric push rod pushes the grid column 82 into the fixed tube 2.

[0040] Then the second power part 434 works, driving the rotating plate 432 to rotate. Since the rotating hole 433 is arranged at an angle, the sliding column 431 is pressed against the inner wall of the rotating hole 433, and the sliding column 431 slides in the rotating hole 433, so that the sliding column 431 drives the positioning rod 41 to slide in the direction close to the fixed tube 2, thereby realizing the synchronous sliding and approaching of the three positioning rods 41. At this time, the clamping wheels 44 on the two relative positioning rods 41 approach each other and clamp the two side walls of the grille column 82. At the same time, the clamping wheel 44 on the third positioning rod 41 presses against the side wall of the grille column 82 close to the mounting seat 11, thereby aligning the grille column 82 and making the grille column 82 on the axis of the fixed tube 2. The set clamping wheel 44 reduces the risk of scratching the outer peripheral wall of the grille column 82, thereby improving the surface quality of the guardrail 8 after welding is completed.

[0041] Then the lifting member 12 raises the mounting seat 11, so that the fixing tube 2 and the grid column 82 rise to between the two cross beams 81, thereby positioning the grid column 82, improving the accuracy of positioning the grid column 82, and reducing the labor intensity of technicians manually placing the grid column 82, and then the welding assembly 3 welds the grid column 82.

[0042] Further, in order to realize the welding of the grid column 82 and improve the welding quality, refer to Figure 3 , Figure 4 and Figure 5 The welding assembly 3 includes a welding gun 31 movably arranged on the end side of the fixed cylinder 2. There are two welding guns 31. The two welding guns 31 are evenly spaced along the circumference direction of the fixed cylinder 2, and the two welding guns 31 are respectively located on both sides of the withdrawal port 22. When the positioning rod 41 is in a retracted state, the clamping wheel 44 and the welding gun 31 are not easy to hinder the movement of the grid column 82. The opening direction of the withdrawal port 22 is upward. This is the initial position of the positioning rod 41, the welding gun 31 and the fixed cylinder 2. When the grid column 82 is positioned and straightened, the welding gun 31 is tilted and arranged toward the side of the grid column 82.

[0043] In order to make the movement direction of the two welding guns 31 parallel to the opening direction of the material withdrawal port 22, and realize the welding guns 31 moving toward each other along the side of the grid column 82, a synchronization member 32 is provided on the fixed cylinder 2. Figure 3 , Figure 4 and Figure 5The synchronous member 32 includes a guide plate 321 detachably fixed to the side wall of the fixed cylinder 2, a notch corresponding to the fixed cylinder 2 is provided on the guide plate 321, two guide holes 323 are provided on the guide plate 321, the opening direction of the guide holes 323 is consistent with the opening direction of the material withdrawal, the two guide holes 323 are evenly spaced along the circumference direction of the fixed cylinder 2, a sliding block is slidably provided in the guide hole 323, the sliding block is movably pressed against the inner side wall of the guide hole 323, the two sliding blocks correspond to the two welding guns 31 one by one, the welding gun 31 is movably provided on the sliding block, and a synchronous plate 324 is coaxially rotatably connected to the fixed cylinder 2, the shape of the synchronous plate 324 corresponds to the ear plate 21, and the synchronous plate 324 is positioned On the side of the guide plate 321 away from the welding gun 31, and between the ear plate 21 and the guide plate 321, two inclined synchronization grooves 325 are opened on the synchronization plate 324, and a synchronization column 326 is fixed on the side wall of the synchronization block 322 close to the synchronization plate 324, and the two synchronization columns 326 correspond to the two synchronization grooves 325 one by one. The synchronization column 326 is located in the synchronization groove 325 and is movably pressed against the inner side wall of the synchronization groove 325. A first power member 327 for driving the synchronization plate 324 to rotate is provided on the fixed cylinder 2. In the present application, the first power member 327 is set as a telescopic electric push rod, one end of the telescopic electric push rod is rotatably connected to the ear plate 21, and the output end of the telescopic electric push rod is rotatably connected to the synchronization plate 324.

[0044] In order to drive the two welding guns 31 to move toward the fixed cylinder 2, an adjusting member 33 is provided on the fixed cylinder 2. Figure 3 , Figure 4 and Figure 5 The adjusting member 33 includes an adjusting block 331 slidably connected to the synchronous block 322. The synchronous block 322 is provided with an adjusting groove 332 for the adjusting block 331 to slide. The adjusting groove 332 is arranged at an angle of 45°. The adjusting block 331 is tightly pressed against the inner side wall of the adjusting groove 332. The welding gun 31 is fixed on the adjusting block 331. The synchronous block 322 is elastically slidably connected with a sliding rod 333. One end of the sliding rod 333 is movably protruded from the side wall of the synchronous block 322. The other end of the sliding rod 333 is fixedly connected to the adjusting block 331. Limiting plates 334 are fixed on the two relatively arranged positioning rods 41. The protruding end of the sliding rod 333 is movably pressed against the limiting plate 334.

[0045] In order to fix the cylinder 2 to rotate and facilitate welding of the horizontal sides of the grid column 82, a driving member 34 is provided on the mounting seat 11. Figure 6 The driving member 34 includes a driven gear 341 coaxially fixed on the fixed cylinder 2, the driven gear 341 is in the shape of a semi-toothed ring, a driving gear 342 is rotatably arranged on the mounting seat 11, the driving gear 342 is meshed with the driven gear 341, and a third power member 343 is arranged on the mounting seat 11 to drive the driving gear 342 to rotate. In the present application, the third power member 343 is set as a driving motor.

[0046] When welding is required, the opening direction of the material withdrawal port 22 faces upward, and the two welding guns 31 correspond to the two vertical sides of the grid column 82 respectively. Then the second power member 434 drives the rotating plate 432 to rotate, so that the three positioning rods 41 slide synchronously close to each other. At this time, the two relatively arranged positioning rods 41 drive the two limit plates 334 to slide close to each other, so that the limit plates 334 are pressed against the protruding end of the sliding rod 333, so that the sliding rod 333 drives the adjusting block 331 to slide in the adjusting groove 332. It is arranged at an angle of 45° so that the welding gun 31 moves toward the grid column 82, and at the same time, the output end of the welding gun 31 moves toward the connection between the two adjacent sides of the grid column 82, until the positioning rod 41 is pressed against the outer wall of the grid column 82, thereby positioning the grid column 82. At this time, the welding gun 31 is close to the side of the grid column 82, and the output end of the welding gun 31 is toward the connection between the two adjacent sides of the grid column 82, thereby positioning the grid column 82 and moving the welding gun 31 to the welding position, thereby improving the efficiency of equipment operation.

[0047] During welding, the first power member 327 drives the synchronous plate 324 to rotate. Since the synchronous groove 325 is arranged obliquely, the synchronous column 326 is pressed against the inner wall of the synchronous groove 325, and the synchronous column 326 moves in the synchronous groove 325. At the same time, the synchronous block 322 slides in the guide hole 323, and the welding gun 31 moves along the direction of the guide hole 323, so that the two welding guns 31 can move synchronously along the vertical sides of the grid column 82. At the same time, the welding gun 31 works to achieve welding of the four vertical sides at both ends of the grid column 82.

[0048] After welding is completed, the second power member 434 works to make the positioning rods 41 slide away from each other and separate from the grid column 82. At this time, the limit plate 334 is separated from the sliding rod 333. The sliding rod 333 drives the adjustment block 331 to slide in the adjustment slot 332 under the elastic force, so that the welding gun 31 is away from the grid column 82. Then the first power member 327 works to make the welding gun 31 slide to the initial position. Then the third power member 343 drives the driving gear 342 to rotate, thereby driving the driven gear 341 to rotate, so that the fixed cylinder 2 rotates to the direction of movement of the material withdrawal port 22 toward the crossbeam 81. At this time, the two welding guns 31 are respectively in contact with the grid column 82. The two flat sides correspond to each other, and then the second power member 434 works to realize that the welding gun 31 is close to the grid column 82 and is in the welding position, and then the first power member 327 and the welding gun 31 work to realize the welding of the remaining four horizontal sides of the grid column 82, and during welding, the inclination angle of the welding gun 31 and the welding direction are relatively consistent, so that the heat generated by the welding gun 31 can stably and evenly act on the connection between the grid column 82 and the crossbeam 81, and the melting depth and melting width of the molten pool are kept consistent, so that the depth, width and shape of the formed weld are kept consistent, which helps to reduce welding defects such as pores and slag inclusions, improve welding quality, and enhance the consistency of the weld.

[0049] After the eight sides of the grid column 82 are welded, the moving assembly 5 drives the cross beam 81 and the grid column 82 to slide, so that the grid column 82 slides out from the material withdrawal port 22, and the cross beam 81 slides to the next welding position corresponding to the fixed tube 2.

[0050] Further, in order to fix the cross beam 81 and drive the two cross beams 81 to slide synchronously, refer to Figure 2 The moving assembly 5 includes a support frame 51 slidably connected to the top of the frame 1, two cross beams 81 are relatively placed on the support frame 51, a screw rod 52 is rotatably connected to the frame 1, the rotation axis of the screw rod 52 is horizontally arranged and perpendicular to the rotation axis of the fixed cylinder 2, and a moving nut 53 is coaxially threadedly assembled on the screw rod 52, and the moving nut 53 is fixedly connected to the support frame 51, and a fourth power member 54 for driving the screw rod 52 to rotate is provided on the frame 1. In this application, the fourth power member 54 is set as a moving motor.

[0051] In order to fix the crossbeam 81, a locking structure 55 is provided on the frame 1. Figure 2 The locking structure 55 includes an "L"-shaped abutment block 551 fixed to the top side of the support frame 51. There are two groups of abutment blocks 551. The two groups of abutment blocks 551 correspond to the two beams 81 one by one. Each group of abutment blocks 551 includes two abutment blocks 551 corresponding to the two ends of the beam 81 respectively. The two abutment blocks 551 are arranged opposite to each other, and the beam 81 is clamped between the two abutment blocks 551. An abutment screw 552 is threadedly connected to the abutment block 551. The rotation axis of the abutment screw 552 is consistent with the height direction of the frame 1, and one end of the abutment screw 552 is movably pressed against the side wall of the beam 81 away from the support clamp.

[0052] In order to grind the side walls of the two beams 81 close to each other, a grinding assembly 6 is provided on the frame 1, referring to Figure 2 The grinding assembly 6 includes a grinding wheel 61 rotatably connected to the support frame 51, the rotation axis of the grinding wheel 61 is arranged vertically, two grinding wheels 61 are provided, the two grinding wheels 61 are arranged opposite to each other, and the two grinding wheels 61 are respectively fitted with the side walls of the two beams 81 close to each other, and the grinding wheel 61 is coaxially fixed with a driving gear 62, and two fixed racks 63 are fixed on the frame 1, and the two fixed racks 63 correspond to the two driving gears 62 one by one, and the driving gear 62 is meshed with the fixed racks 63.

[0053] When welding is required, the technician places the two beams 81 on the support frame 51 and clamps the beam 81 between the two relatively arranged abutment blocks 551. Then the technician rotates the abutment screw 552 to make the abutment screw 552 press against the beam 81 to fix the beam 81. Then the fourth power member 54 drives the screw rod 52 to rotate, thereby driving the movable nut 53 to slide synchronously with the support frame 51. At this time, the support frame 51 drives the driving gear 62 to move along the fixed rack 63, so that the fixed rack 63 drives the driving gear 62 to rotate, thereby driving the grinding wheel 61 to rotate, so that the grinding wheel 61 grinds the side walls of the beams 81 that are close to each other until the first position where the two beams 81 need to be welded corresponds to the fixed cylinder 2. At this time, the beam 81 with the welding position has just been polished, which ensures the cleanliness of the surface of the beam 81, reduces the risk of the polished position being contaminated again, and improves the quality of the weld. Then the first grid column 82 is welded.

[0054] The implementation principle of a road metal guardrail welding processing device in an embodiment of the present application is: when welding is required, the technician places two beams 81 on the top of the support frame 51, and clamps the beams 81 between the two abutment blocks 551, and then the technician rotates the abutment screw 552 to make the abutment screw abut against the beam 81 to fix the beam 81. At the same time, the conveyor belt transports the grille column 82 to the corresponding position of the fixed tube 2, and then the loading electric push rod pushes the grille column 82 into the fixed tube 2.

[0055] Then the fourth power member 54 drives the screw rod 52 to rotate, thereby driving the moving nut 53 to slide synchronously with the support frame 51, and the fixed rack 63 drives the driving gear 62 to rotate, thereby driving the grinding wheel 61 to grind the side walls of the cross beam 81 that are close to each other, until the polished part slides to correspond to the fixed cylinder 2, and at the same time the second power member 434 drives the rotating plate 432 to rotate, driving the sliding column 431 to slide, so that the positioning rod 41 slides in the direction close to the fixed cylinder 2, and at the same time the two relatively arranged positioning rods 434 are 1, the limiting plates 334 fixed on the upper part of the fixing tube 2 slide close to each other and press against the protruding end of the sliding rod 333, so that the sliding rod 333 drives the adjusting block 331 to slide in the adjusting groove 332, until the pressing wheel 44 on the positioning rod 41 presses against the outer side wall of the grid column 82, so as to realize the alignment of the grid column 82 and make the grid column 82 be located on the axis of the fixing tube 2. At this time, the opening direction of the material withdrawal port 22 faces upward, the welding gun 31 is close to the side of the grid column 82, and the output end of the welding gun 31 faces the connection between the two adjacent sides of the grid column 82.

[0056] Then the lifting member 12 drives the mounting seat 11 to rise, thereby driving the fixing tube 2 and the grid column 82 to be located between the two beams 81, and then the first power member 327 drives the synchronous plate 324 to rotate, so that the synchronous column 326 slides in the synchronous groove 325, thereby driving the synchronous block 322 to slide in the guide hole 323, so that the welding gun 31 can weld the vertical side of the grid column 82.

[0057] After the vertical side welding is completed, the second power member 434 and the first power member 327 work to make the positioning rod 41 and the welding gun 31 move away from the grid column 82, and then the third power member 343 drives the driving gear 342 to rotate, and drives the driven gear 341 to rotate, so that the fixed cylinder 2 rotates to the moving direction of the withdrawal port 22 toward the crossbeam 81. At this time, the two welding guns 31 respectively correspond to the two horizontal sides of the grid column 82, and then the second power member 434 works to make the positioning rod 41 approach each other again, and make the clamping wheel 44 clamp the grid column 82, so that the welding gun 31 is close to the grid column 82, and the output end of the welding gun 31 faces the connection between the two adjacent sides of the grid column 82, and then the first power member 327 works to make the welding gun 31 weld the horizontal sides of the grid column 82.

[0058] After welding is completed, the fourth power member 54 works to make the crossbeam 81 and the grid column 82 slide, and the grid column 82 slides out from the unloading port 22, and the next welding position of the crossbeam 81 slides to correspond to the fixed cylinder 2, and then the third power member 343 makes the fixed cylinder 2 rotate the column unloading head upward, and then the second power member 434 and the first power member 327 work to make the welding gun 31 slide to the initial position, and at the same time the lifting member 12 drives the mounting seat 11 and the fixed cylinder 2 to descend to the loading position of the grid column 82, and the next loading process is carried out.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A road metal guardrail welding processing device, characterized in that: It comprises a frame and a mounting seat which is lifted and arranged on the frame, a lifting member which drives the mounting seat to lift and lower is arranged on the frame, a fixed cylinder is rotatably arranged on the mounting seat, a grille column is movably located in the fixed cylinder, and two ends of the grille column protrude from the fixed cylinder, a material withdrawal port for the grille column to slide out along the radial direction of the fixed cylinder is provided on the fixed cylinder, two crossbeams are respectively located on both sides of the fixed cylinder, a moving component which drives the two crossbeams to slide synchronously, a positioning component which positions and fixes the grille column, and a welding component which welds the grille column are arranged on the frame, and two groups of the positioning component and the welding component are provided, and the two groups of the positioning component and the two groups of the welding component correspond to the two ends of the fixed cylinder; The welding assembly includes a welding gun movably arranged on the end side of the fixed cylinder, the welding gun is arranged at an angle toward the side of the grid column, two welding guns are provided, and the two welding guns are evenly spaced along the circumference direction of the fixed cylinder, and the mounting seat is provided with a driving member for driving the fixed cylinder to rotate, an adjusting member for driving the two welding guns to move toward the fixed cylinder, and a synchronizing member for making the two welding guns move synchronously along the side of the grid column. After the grid column is positioned, the adjusting member moves the welding gun to a connection position inclined toward two adjacent sides of the grid column, and the opening direction of the material withdrawal port faces upward.

2. A road metal guardrail welding processing device according to claim 1, characterized in that: The synchronous part includes a guide plate arranged on the end side of the fixed cylinder, the guide plate corresponds to the fixed cylinder, a synchronous block is slidably arranged on the guide plate, two synchronous blocks are provided, and the two synchronous blocks correspond to the two welding guns one by one, and the welding gun is provided on the synchronous block, and a guide hole for sliding the synchronous block is provided on the guide plate, and the opening direction of the guide hole is consistent with the opening direction of the return port, a synchronous plate corresponding to the guide plate is coaxially arranged on the fixed cylinder, the synchronous plate is located on the side of the guide plate away from the welding gun, and two inclined synchronous grooves are provided on the synchronous plate, a synchronous column is provided on the synchronous block, and the two synchronous columns correspond to the two synchronous grooves one by one, the synchronous column is located in the synchronous groove, and is movably pressed against the inner side wall of the synchronous groove, and a first power member for driving the synchronous plate to rotate is provided on the fixed cylinder.

3. A road metal guardrail welding processing device according to claim 2, characterized in that: The positioning assembly includes a positioning rod slidably arranged in the fixed cylinder, a sliding groove is opened on the fixed cylinder, the positioning rod is located in the sliding groove and movably fits with the inner wall of the sliding groove, three positioning rods are provided, and the three positioning rods are arranged at 90° intervals along the circumference direction of the fixed cylinder and avoid the material return port, one end of the positioning rod close to the fixed cylinder is movably pressed against the outer wall of the grille column, and a rotating part is provided on the mounting seat to drive the three positioning rods to slide close to each other.

4. A road metal guardrail welding processing device according to claim 3, characterized in that: The rotating member includes a sliding column arranged on the positioning rod, a rotating plate is coaxially rotatably arranged on the fixed cylinder, three rotating holes are opened on the rotating plate, the rotating holes are arranged obliquely, the three sliding columns correspond to the three rotating holes one by one, the sliding column is movably located in the rotating hole, and is movably pressed against the inner side wall of the rotating hole, and a second power member for driving the rotating plate to rotate is arranged on the fixed cylinder.

5. A road metal guardrail welding processing device according to claim 4, characterized in that: The adjusting member includes an adjusting block slidably arranged on the synchronization block, an adjusting groove for sliding the adjusting block is opened on the synchronization block, the adjusting groove is arranged at an inclination of 45°, the adjusting block is tightly pressed against the inner side wall of the adjusting groove, the welding gun is arranged on the adjusting block, a sliding rod is elastically and slidably arranged on the synchronization block, one end of the sliding rod is movably protruded from the side wall of the synchronization block, the other end of the sliding rod is connected to the adjusting block, and limiting plates are fixed on two relatively arranged positioning rods, and the protruding end of the sliding rod is movably pressed against the limiting plate.

6. A road metal guardrail welding processing device according to claim 5, characterized in that: The driving member includes a driven gear coaxially arranged on the fixed cylinder, the driven gear is in the shape of a semi-toothed ring, a driving gear is rotatably arranged on the mounting seat, the driving gear is meshed with the driven gear, and a third power member for driving the driving gear to rotate is arranged on the mounting seat.

7. A road metal guardrail welding processing device according to claim 6, characterized in that: The moving assembly includes a support frame slidably arranged on the frame, two beams are placed relatively on the support frame, a locking structure for fixing the beams is arranged on the support frame, a screw rod is rotatably arranged on the frame, a moving nut is coaxially threadedly assembled on the screw rod, the moving nut is connected to the support frame, a fourth power part for driving the screw rod to rotate is arranged on the frame, and a grinding assembly for grinding the side walls of the two beams close to each other is also arranged on the frame.

8. A road metal guardrail welding processing device according to claim 7, characterized in that: The grinding assembly includes a grinding wheel rotatably arranged on the support frame, two grinding wheels are provided, the two grinding wheels are arranged opposite to each other, and the two grinding wheels are respectively in contact with the side walls of two beams close to each other, the grinding wheel is coaxially provided with a driving gear, and the frame is provided with two fixed racks, the two fixed racks correspond to the two driving gears one by one, and the driving gear is meshed with the fixed racks.

9. A road metal guardrail welding processing device according to claim 8, characterized in that: A clamping wheel is rotatably arranged at one end of the positioning rod close to the fixing tube, and the outer peripheral wall of the clamping wheel is movably clamped against the outer side wall of the grille column.

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