Automatic welding equipment and method for traffic anti-collision guardrail production

Abstract

The invention relates to automatic welding equipment and method for traffic anti-collision guardrail production, and relates to the technical field of guardrail production. According to the guardrail production device, the following problems existing in the guardrail production process in the prior art can be solved: firstly, by arranging a driving screw rod, a threaded seat, a U-shaped frame, a guide rail, a mounting block and a driving part, a welding mechanism on the mounting block can weld the upper portion of a guardrail, after welding is completed, the U-shaped frame is turned over through the driving part, and then the U-shaped frame is turned over through the guide rail; the welding mechanism on the U-shaped frame can also weld the lower portion of the guardrail, the guardrail does not need to be turned over, the stability of the guardrail in the welding process is improved, and the stability and strength of guardrail manufacturing are further improved; and then, by arranging the conveying piece and the feeding piece, the transverse rods and the vertical rods of the guardrails can be automatically placed on the workbench, manual placing and straightening are not needed, automatic feeding and placing of the transverse rods and the vertical rods of the guardrails are achieved, manual operation is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of guardrail production, and in particular to automatic welding equipment and method for producing traffic anti-collision guardrails. Background Art

[0002] Traffic crash barriers are important facilities used to ensure road traffic safety. They are usually installed on both sides of the highway or in the central dividing strip to prevent vehicles from running off the road or entering the opposite lane when they lose control, thereby reducing the occurrence of traffic accidents and mitigating the consequences of accidents.

[0003] Welding of traffic crash barriers is to connect different parts together to enhance the overall stability and strength of the barriers, thereby ensuring that they can effectively protect against traffic accidents. The quality of welding directly affects the service life and safety of the barriers. Therefore, during the welding process, it is necessary to strictly follow the relevant standards and requirements to ensure that the welded joints are firm and free of defects such as cracks and pores. Only after strict welding process and quality inspection can traffic crash barriers meet the design requirements and ensure the safety and smoothness of road traffic.

[0004] For example, Chinese patent publication number CN115502628A discloses a welding device for a safety guardrail; The invention discloses a welding device for a safety guardrail, and relates to the technical field of welding processing of safety guardrails. The device can realize automatic overlapping of the safety guardrail structure when welding the safety guardrail, eliminating the need for personnel to manually overlap the safety guardrail structure, which is more labor-saving and efficient. At the same time, by adjusting the overlapped safety guardrail to a vertical state, it is also convenient for personnel to weld both sides of the safety guardrail, eliminating the need for personnel to manually flip the safety guardrail, which is more convenient.

[0005] However, the above device still has some shortcomings in actual use: 1. After the welding of one side of the guardrail is completed, if it is turned over to weld the other side, the welding joint is not firm before the welding is completed. Flipping will cause the welding joint to break, which will affect the quality and effect of the welding and the firmness of the guardrail.

[0006] 2. Before welding the guardrail, it is necessary to place and fix the various parts on the guardrail. Although the above device is provided with a structure for fixing the parts, it still needs to be placed manually, and it is not possible to automatically place the various parts in the specified position. In addition, manual welding is required during the welding process, and the degree of automation is not high, and the efficiency is low.

[0007] Therefore, under the viewpoints stated above, it is of great significance to improve and perfect the welding device for safety guardrails, which can not only ensure the stability of welding, but also further improve the accuracy of guardrail placement, and can perform welding without manual labor, thus improving the degree of automation. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides an automatic welding device and method for producing traffic collision guardrails.

[0009] On the one hand, an automatic welding device for producing traffic collision guardrails includes a workbench.

[0010] On the workbench, U-shaped frames are symmetrically installed through brackets. One end of the U-shaped frame is provided with an L-shaped conveying plate. A conveying box is slidably installed above the U-shaped frame. On the workbench, clamping rods are symmetrically arranged between the U-shaped frames.

[0011] On the workbench, driving screws are symmetrically arranged along the length direction of the U-shaped frame. Threaded seats are arranged on the driving screws. On the two threaded seats, a U-shaped frame is jointly rotatably installed through a rotating shaft. A welding device is slidably arranged on the U-shaped frame.

[0012] A driving member for driving the U-shaped frame to flip is installed on the workbench.

[0013] Preferably, the driving member includes a first gear and a second gear. The first gear and the second gear are arranged at one end of the rotating shaft through ratchet teeth. On the workbench, two driving racks distributed up and down are installed on the side of the U-shaped frame away from the conveying plate. The two driving racks are respectively movably engaged with the first gear and the second gear.

[0014] Preferably, a conveying member for feeding the cross bars is also installed on the workbench.

[0015] A feeding member for conveying the vertical bars is arranged on the conveying box.

[0016] A cooperating member for driving the feeding member to work is also installed on the workbench.

[0017] When the conveying box moves along the length direction of the U-shaped frame, the cooperating member drives the feeding member to operate, so that the vertical bars are conveyed downward in the conveying box.

[0018] Preferably, a plurality of clamping grooves extending from top to bottom are equidistantly arranged along the length direction of the clamping rod. Clamping plates are symmetrically and slidably arranged in the clamping grooves along the length direction of the clamping plates. Sponges are installed on the opposite sides of the clamping plates.

[0019] Preferably, a working groove connected to the clamping groove is provided inside the clamping rod, one end of the clamping plate close to the working groove extends into the working groove, and an actuating member for driving the two clamping plates to move relative to each other is provided inside the working groove.

[0020] Preferably, the actuating member includes an actuating screw, which is rotatably arranged inside the working groove along the length direction of the working groove, and a plurality of sliding blocks corresponding to the clamping groove are slidably arranged inside the working groove along the height direction of the clamping rod, and a V-shaped groove is provided on the sliding block, and an inclined surface matching the V-shaped groove is provided at the bottom of the clamping plate.

[0021] Preferably, a driving block with an inclined top is slidably arranged inside the working groove, and the driving block is threadedly connected to the driving screw.

[0022] Preferably, the clamping rod is provided with a fixing piece for fixing the driving block, the fixing piece includes a fixing groove opened on one side along the width direction of the slider, a spring telescopic rod is installed in the fixing groove, the telescopic end of the spring telescopic rod is connected to the fixing block, and the clamping rod is provided with a storage groove matching the fixing block.

[0023] Preferably, the clamping rod is also provided with a plurality of driving grooves extending along its height direction and communicating with the receiving groove, an L-shaped abutment block is longitudinally slidably installed inside the driving groove, the upper end of the abutment block is movably engaged with the fixed block, and a mating block movably adapted to the abutment block is provided on one side of the driving block close to the abutment block.

[0024] On the other hand, an automatic welding method for producing a traffic anti-collision guardrail is provided, and the welding method is as follows: S1. Guardrail conveying: The horizontal bar is moved to the conveying plate through the conveying member and conveyed to the yoke, and the vertical bars are placed one by one on the clamping rod through the loading member; S2, fixing the vertical rod: rotating the screw rod to drive the driving block to slide inside the working groove, so that the slider drives the two clamping plates upward to approach each other, clamping the vertical rod in the clamping groove; S3, guardrail welding: drive the screw to rotate to drive the U-shaped frame to slide above the clamping rod, and then the welding device on the U-shaped frame welds the connection between the horizontal rod and the vertical rod; S4, reverse side welding: after completing welding on one side, drive the screw rod to move the U-shaped frame to the end away from the conveying plate, so that the U-shaped frame drives the welding device to flip over and weld the lower part of the guardrail.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention arranges a driving screw, a threaded seat, a C-shaped frame, a guide rail, a mounting block and a driving member, so that the welding mechanism on the mounting block can not only weld the upper part of the guardrail, but also use the driving member to flip the C-shaped frame after welding, so that the welding mechanism on the C-shaped frame can also weld the lower part of the guardrail without flipping the guardrail, thereby improving the stability of the guardrail during the welding process and further improving the stability and strength of the guardrail production.

[0026] 2. The present invention is provided with a conveying part and a loading part, which can automatically place the horizontal bars and vertical bars of the guardrail on the workbench without manual placement and alignment, thereby realizing automatic loading and placement of the horizontal bars and vertical bars of the guardrail, reducing manual operations and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a structural schematic diagram of part of the present invention.

[0030] Figure 3 The present invention Figure 2 Schematic diagram of the structure at A in the middle.

[0031] Figure 4 It is a structural schematic diagram of the U-shaped frame of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the conveying member of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the feeding part and the matching part of the present invention.

[0034] Figure 7 It is a schematic diagram of the structure on the clamping rod of the present invention.

[0035] Figure 8 It is a schematic cross-sectional view of the clamping rod of the present invention at one angle.

[0036] Fig. 9 It is a structural schematic diagram of the actuator of the present invention.

[0037] Fig.10 It is a schematic cross-sectional structural diagram of the clamping rod of the present invention at another angle.

[0038] Fig.11 The present invention Fig.10 Schematic diagram of the structure at B in the figure.

[0039] Fig.12 It is a structural schematic diagram of the synchronizer of the present invention.

[0040] In the figure, 1 is a workbench; 10 is a U-shaped frame; 11 is a conveying plate; 12 is a conveying box; 13 is a clamping rod; 14 is a driving screw; 15 is a threaded seat; 16 is a U-shaped frame; 17 is a guide rail; 18 is a mounting block; 19 is a conveying screw; 2 is a driving member; 20 is a first gear; 21 is a second gear; 22 is a driving rack; 3 is a conveying member; 30 is a first conveying belt; 31 is a baffle; 32 is a conveying roller; 4 is a feeding member; 40 is a second conveying belt; 41 is a resisting plate; 5 is a fitting member; 50 is a first bevel gear; 51 is a fitting shaft; 52 is a second bevel gear; 53 is a fitting gear; 54 is a fitting rack; 60 is a clamping groove; 61 is a clamping plate; 62 is a sponge; 63 is a working groove; 64 is an actuating member; 640 is an actuating screw; 641 is a slider; 642 is a V-shaped groove; 643 is a driving block; 7 is a fixing member; 70 is a fixing groove; 71 is a spring telescopic rod; 72 is a fixing block; 73 is a storage groove; 80 is a driving groove; 81 is a butting block; 82 is a fitting block; 9 is a synchronizing member; 90 is a synchronizing wheel; 91 is a synchronizing belt; 100 is a push spring rod; 101 is a clamping block. Detailed implementation mode

[0041] The following combines the attached Figure 1-Figure 12 to describe the embodiments of the present invention in detail.

[0042] The embodiment of the present application discloses an automatic welding device and method for producing traffic anti-collision guardrails. It should be noted that the present invention is mainly applied in the process of guardrail production. In terms of technical effects, it can avoid the problem that in the process of welding existing traffic guardrails, it is often necessary to weld one side of the cross bar and the vertical bar first, and then flip the guardrail. However, the welded joints on only one side of the guardrail are not firm enough, and the cross bar and the vertical bar may be separated during the flipping process. And the present invention can also solve the problem that during the welding of traffic guardrails, it is necessary to manually place the cross bar in a fixed position and then place the vertical bars one by one in sequence. The present invention can realize automatic placement, reduce the waste of human resources, and improve the accuracy of placement.

[0043] Embodiment 1: Refer to Figure 1As shown in the figure, it includes a workbench 1. On the workbench 1, U-shaped frames 10 are symmetrically installed through brackets. One end of the U-shaped frame 10 is provided with an L-shaped conveying plate 11. Above the U-shaped frame 10, a conveying box 12 is slidably installed. On the workbench 1, conveying screws 19 are symmetrically and rotatably arranged through brackets. Both ends of the conveying box 12 are threadedly connected to the conveying screws 19. By rotating the conveying screws 19, the conveying box 12 is driven to slide on the U-shaped frame 10. On the workbench 1, clamping rods 13 are symmetrically arranged between the U-shaped frames 10. The vertical rods of the traffic guardrail will be placed on the clamping rods 13. Through the cooperation of the U-shaped frame 10 and the clamping rods 13, the accessories of the traffic guardrail are clamped and fixed, facilitating subsequent welding.

[0044] Referring to Figure 2 , Figure 3 and Figure 4 As shown in the figure, on the workbench 1, driving screws 14 are symmetrically arranged along the length direction of the U-shaped frame 10. Threaded seats 15 are arranged on the driving screws 14. On the two threaded seats 15, a U-shaped frame 16 is rotatably installed through a rotating shaft. A welding device is slidably arranged on the U-shaped frame 16. On one side of the U-shaped frame 16 close to the clamping rod 13, a guide rail 17 is provided. On the U-shaped frame 16, a mounting block 18 connected to the guide rail 17 is slidably arranged. The welding device is arranged on the mounting block 18. The welding device is preferably an existing welding part for traffic guardrails. By driving the U-shaped frame 16 to move on the workbench 1 through the driving screws 14, it is convenient for the welding device to weld the traffic guardrail along the length direction of the workbench 1. Then, by using the guide rail 17, the welding device is driven to weld the traffic guardrail along the width direction of the workbench 1.

[0045] A driving member 2 for driving the U-shaped frame 16 to flip is installed on the workbench 1. The driving member 2 includes a first gear 20 and a second gear 21. The first gear 20 and the second gear 21 are arranged at one end of the rotating shaft through ratchet teeth. On the workbench 1, two driving racks 22 distributed vertically are installed on the side of the U-shaped frame 16 away from the conveying plate 11. The two driving racks 22 are respectively movably engaged with the first gear 20 and the second gear 21.

[0046] When the U-shaped frame 10 moves above the guardrail, it can weld the upper parts of the horizontal bar and the vertical bar. When it is necessary to weld the lower ends of the horizontal bar and the vertical bar, the driving screw 14 drives the U-shaped frame 10 to approach the driving rack 22. The first gear 20 on the threaded seat 15 meshes with the upper driving rack 22 to drive the U-shaped frame 10 to flip 180 degrees, so that the welding device on the U-shaped frame 10 is aligned with the bottom of the guardrail to perform welding operations on the lower parts of the horizontal bar and the vertical bar. After the lower welding operation is completed, the U-shaped frame 10 is driven to approach the driving rack 22 again. At this time, the second gear 21 will mesh with its corresponding driving rack 22, driving the U-shaped frame 10 to flip 180 degrees in the reverse direction to complete the welding. The function of this setting is to flip the welding device to weld the upper and lower parts of the guardrail without flipping the guardrail, avoiding possible damage to the guardrail or the welded joints during the flipping process, which may affect the quality of the guardrail.

[0047] Refer to Figure 1 and Figure 5 As shown, it is a schematic structural diagram for placing the horizontal bar; specifically, a conveying member 3 for feeding the horizontal bar is further installed on the workbench 1. The conveying member 3 includes a first conveying belt 30 symmetrically arranged on the opposite sides of the two conveying plates 11. A plurality of baffles 31 are equidistantly connected to the first conveying belt 30. Installation grooves are provided at one end and the middle of the conveying plate 11 close to the U-shaped frame 10, and conveying rollers 32 are rotatably arranged in the installation grooves.

[0048] Using the baffles 31 on the first conveying belt 30, the horizontal bars are conveyed one by one. The conveyed horizontal bars will be placed on the conveying plate 11, and then the horizontal bars placed on the conveying plate 11 will move towards the U-shaped frame 10 under the drive of the conveying rollers 32 until they are completely placed on the conveying rollers 32.

[0049] Refer to Figure 1 and Figure 6 As shown, it is a schematic structural diagram for placing the vertical bar on the clamping rod 13; specifically, a feeding member 4 for feeding the vertical bar is provided on the conveying box 12. The feeding member 4 includes a second conveying belt 40. The two second conveying belts 40 are symmetrically installed inside the conveying box 12 along the length direction of the conveying box 12. A plurality of abutting plates 41 are equidistantly arranged on the second conveying belt 40. Feeding ports and discharging ports are provided at both ends of the conveying box 12 in the height direction.

[0050] Vertical bars are jointly placed between the abutting plates 41 on the second conveying belt 40. During the process of the conveying box 12 moving along the length direction of the workbench 1, the second conveying belt 40 will work synchronously, and a plurality of vertical bars inside the conveying box 12 will be gradually and equidistantly placed on the clamping rod 13 from the discharging port.

[0051] Refer to Figure 6As shown, it is a schematic structural diagram of the structure that enables the conveying box 12 to be gradually loaded; specifically, a fitting 5 for driving the loading member 4 to work is also installed on the workbench 1. The fitting 5 includes a first bevel gear 50. The output shaft of the second conveyor belt 40 penetrates the conveying box 12. The first bevel gear 50 is installed at one end of the output shaft located outside the conveying box 12. On the side of the conveying box 12 away from the conveying plate 11, fitting shafts 51 are symmetrically arranged through a connecting plate. A second bevel gear 52 meshing with the first bevel gear 50 is installed at one end of the fitting shaft 51. A fitting gear 53 is installed at the other end of the fitting shaft 51 through a ratchet and pawl. Fitting racks 54 meshing with the fitting gear 53 are installed on the opposite sides of the U-shaped frame 10.

[0052] During the movement of the conveying box 12, the fitting gear 53 on the conveying box 12 will mesh with the fitting rack 54, driving the fitting shaft 51 to rotate. The rotation of the fitting shaft 51 will drive the second bevel gear 52 above it to rotate. The first bevel gear 50 meshing with the second bevel gear 52 rotates synchronously, enabling the second conveyor belt 40 to move synchronously during the movement of the conveying box 12. Thus, during the movement of the conveying box 12, the vertical rods in the conveying box 12 can be gradually placed on the clamping rods 13.

[0053] Refer to Figure 7 、 Figure 8 and Fig. 9 As shown, it is a schematic structural diagram for fixing the vertical rod; specifically, a plurality of clamping grooves 60 extending from top to bottom are equidistantly arranged along the length direction of the clamping rod 13. Clamping plates 61 are symmetrically and slidably arranged along the length direction of the clamping plate 61 in the clamping grooves 60. Sponges 62 are installed on the opposite sides of the clamping plates 61, contacting the vertical rod while fixing the vertical rod, being more adaptable to the surface of the vertical rod, increasing the contact surface with the vertical rod, and clamping more stably.

[0054] A working groove 63 communicating with the clamping groove 60 is opened inside the clamping rod 13. One end of the clamping plate 61 close to the working groove 63 extends into the working groove 63. An actuating member 64 for driving the two clamping plates 61 to move relative to each other is arranged inside the working groove 63. The actuating member 64 drives the two clamping plates 61 to approach each other, fixing the vertical rod that has fallen into the clamping groove 60.

[0055] When the conveying box 12 moves above the clamping plate 61, the vertical rods conveyed by the conveying box 12 will gradually fall into the clamping grooves 60. After the vertical rods fall into the clamping grooves 60, the two clamping plates 61 in the clamping grooves 60 will approach each other, clamping and fixing the vertical rods to prevent them from sliding.

[0056] Refer to Figure 7 、 Figure 8 and Fig. 9The figure shows a schematic diagram of the structure for driving the clamping plates 61 to approach each other; specifically, the actuating member 64 includes an actuating screw 640, which is rotatably arranged inside the working groove 63 along the length direction of the working groove 63, and a plurality of sliders 641 corresponding to the clamping groove 60 are slidably arranged inside the working groove 63 along the height direction of the clamping rod 13, and a V-shaped groove 642 is provided on the slider 641, and an inclined surface matching the V-shaped groove 642 is provided at the bottom of the clamping plate 61, and a driving block 643 with an inclined surface at the top is slidably arranged inside the working groove 63, and the driving block 643 is threadedly connected to the actuating screw 640.

[0057] The screw rod 640 rotates to drive the driving block 643 to slide in the working groove 63. When the driving block approaches the slider 641, the slider 641 is driven to move toward the clamping plate 61. At this time, the V-shaped groove 642 on the slider 641 cooperates with the inclined surface at the bottom of the clamping plate 61, driving the clamping plates 61 to approach each other and fix the vertical rod.

[0058] Reference Fig. 9 , Fig.10 As shown in 11, it is a schematic diagram of the structure for limiting the driving block 643; specifically, the clamping rod 13 is provided with a fixing member 7 for fixing the driving block 643, and the fixing member 7 includes a fixing groove 70 opened on one side along the width direction of the slider 641, and a spring telescopic rod 71 is installed in the fixing groove 70. The telescopic end of the spring telescopic rod 71 is connected to a fixing block 72, and the clamping rod 13 is provided with a storage groove 73 that matches the fixing block 72.

[0059] The slider 641 moves upward, and when the fixed groove 70 corresponds to the storage groove 73, the fixed block 72 on the spring telescopic rod 71 in the fixed groove 70 will slide into the fixed groove 70 under the drive of the spring telescopic rod 71. At this time, when the driving block 643 continues to move away from the current clamping plate 61 as the driving screw 14 continues to move, the slider 641 will not move due to the limitation of the fixed block 72, and the clamping plate 61 will not return to the initial state, so the vertical rod can always be fixed.

[0060] The reason for setting the fixing part 7 is that there are multiple clamping grooves 60 on the clamping plate 61, and multiple vertical rods need to be fixed, and the driving block 643 needs to cooperate with multiple sliders 641. When the driving block 643 moves to the next slider 641 under the action of the driving screw 14, if there is no limit on the current slider 641, it will cause the slider 641 to fall and fail to fix the vertical rod.

[0061] Reference Fig. 9 , Fig.10As shown in 11, it is a structural diagram of canceling the limit of the driving block 643; specifically, the clamping rod 13 is also provided with a plurality of driving grooves 80 extending along its height direction and penetrating the receiving groove 73, and an L-shaped abutment block 81 is longitudinally slidably installed inside the driving groove 80, and the upper end of the abutment block 81 is movably matched with the fixed block 72, and a matching block 82 movably matched with the abutment block 81 is provided on the side of the driving block 643 close to the abutment block 81, wherein the matching block 82 abuts against the abutment block 81 through the slope at its lower end.

[0062] When welding is completed, it is necessary to cancel the fixation of the clamping plate 61 to the vertical rod to facilitate the removal of the guardrail after welding. At this time, the driving screw 14 rotates in the opposite direction, causing the driving block 643 to slide in the opposite direction, and the matching block 82 on the driving block 643 contacts the lower end of the abutment block 81. The abutment block 81 slides downward along the height direction of the clamping rod 13. At this time, the fixed block 72 will be pushed out of the storage groove 73 under the drive of the abutment block 81. At this time, the slider 641 loses the limit of the fixed block 72 and slides down. The clamping plate 61 loses the driving force of the slider 641 and moves away from each other, loosening the clamping of the vertical rod.

[0063] Embodiment 2: On the basis of Example 1, in order to further improve the accuracy of the clamping plate 61 on the guardrail vertical rod, a synchronization component 9 is also proposed, which is conducive to cooperating with the conveyor belt 2 40 inside the conveyor box 12. While the conveyor belt 2 40 transports the vertical rod to the inside of the clamping groove 60, the vertical rod is clamped and fixed to prevent displacement and affect the welding effect with the cross bar.

[0064] Reference Fig.12 As shown, it is a schematic diagram of the structure that drives the clamping plate 61 to cooperate with the conveying belt; specifically, the synchronous member 9 includes a synchronous wheel 90 and a synchronous belt 91, and the conveying screw 19 and the driving screw 640 are both equipped with a synchronous wheel 90, and a synchronous belt 91 is commonly sleeved on the synchronous wheel 90.

[0065] The conveying screw 19 and the driving screw 640 can achieve synchronous rotation with the cooperation of the synchronous wheel 90 and the synchronous belt 91, so that the conveying screw 19 drives the conveying box 12 to unload the vertical rods. Synchronously, the driving screw 640 will use the driving block 643 to drive the clamping plates 61 in the clamping groove 60 to approach each other, and each vertical rod conveyed during the movement of the conveying box 12 will be synchronously fixed, so that the conveyed vertical rods will not be deflected or displaced due to external influences, thereby improving the quality of guardrail production.

[0066] Embodiment three: Based on Embodiment 2, in order to improve the stability of the cross bar during the welding process, a clamping block 101 is also proposed, which is beneficial to cooperate with the C-shaped frame 10 to clamp and fix the cross bar, prevent the cross bar from shifting during the welding process, affect the welding effect, and thus affect the quality of the traffic guardrail.

[0067] Referring to Figure 7 As shown, it is a schematic structural diagram for further fixing the cross bar; specifically, a plurality of push spring rods 100 are equidistantly arranged on one side of the two clamping rods 13 close to the C-shaped frame 10, and the clamping block 101 is installed on the telescopic ends of the push spring rods 100. The push spring rods 100 are staggered with the clamping grooves 60. After the cross bar moves onto the C-shaped frame 10, the clamping block 101 is always in contact with the C-shaped frame 10 under the drive of the push spring rods 100 to clamp the cross bar and prevent it from moving.

[0068] During operation: In the first step, through the baffle 31 on the conveyor belt 1 30, the cross bar is moved onto the conveyor plate 11, and then the conveyor rollers on the conveyor plate 11 are used to convey the cross bar to the C-shaped frame 10.

[0069] In the second step: Then the conveyor screw 19 rotates, driving the conveyor box 12 to move. During the movement of the conveyor box 12, in cooperation with the gear 53 meshing with the mating rack 54, the mating shaft 51 is driven to rotate. Then the second bevel gear 52 on the mating shaft 51 drives the first bevel gear 50 on the conveyor box 12 to rotate, causing the conveyor belt 2 40 to operate. The abutting plate 41 on the conveyor belt 2 40 is used to gradually convey and place the vertical bars onto the clamping rods 13.

[0070] In the third step: While the conveyor screw 19 is rotating, it drives the actuating screw 640 to rotate through the cooperation of the synchronous pulley 90 and the synchronous belt 91. The rotation of the actuating screw 640 drives the driving block 643 to slide inside the working groove 63 on the clamping rod 13. When the driving block 643 gradually approaches the slider 641, it drives the slider 641 to slide upward. The upward sliding of the slider 641 drives the clamping plates 61 in contact with it to approach each other, clamping and fixing the vertical bars conveyed by the conveyor box 12. During this process, the fixing block 72 on the slider 641 will move into the receiving groove 73 under the action of the spring telescopic rod 71 to limit the slider 641 in the reverse direction, ensuring that the slider 641 always drives the clamping plates 61 to fix the guardrail vertical plates.

[0071] In the fourth step: Subsequently, the driving screw 14 rotates, driving the U-shaped frame 16 to slide above the clamping rod 13, and using the guide rail 17 to drive the mounting block 18 on the U-shaped frame 16 to cooperate with the driving screw 14 to weld the fixed cross bar and vertical bars.

[0072] Step 5: After welding one side of the guardrail, the driving screw 14 is used again to drive the U-shaped frame 16 to move to the end away from the conveying plate 11. During the movement, the gear 20 on the threaded seat 15 will engage with the driving rack 22, and the U-shaped frame 16 will flip 180 degrees at this time. Then, with the cooperation of the driving screw 14 and the guide rail 17, the welding device is used to weld the bottom of the guardrail.

[0073] Step 6: After welding is completed, the movable screw 640 is rotated in the opposite direction to drive the slider 641 to move toward the conveying plate 11. During the movement, the matching block 82 on the slider 641 will contact the abutment block 81 to drive the ground block to move downward with the slider 641. At this time, the upper end of the abutment block 81 will drive the fixed block 72 to move out of the storage groove 73, canceling the fixation of the slider 641, and then the two clamping plates 61 move away from each other, releasing the clamping of the welded guardrail vertical plate.

[0074] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic welding device for producing traffic collision prevention guardrails, including a workbench (1), characterized in that: On the workbench (1), U-shaped frames (10) are symmetrically installed through brackets. One end of the U-shaped frame (10) is provided with an L-shaped conveying plate (11). Above the U-shaped frame (10), a conveying box (12) is slidably installed. On the workbench (1), clamping rods (13) are symmetrically arranged between the U-shaped frames (10); On the workbench (1), driving screws (14) are symmetrically arranged along the length direction of the U-shaped frame (10). Threaded seats (15) are arranged on the driving screws (14). On the two threaded seats (15), a U-shaped frame (16) is jointly rotatably installed through a rotating shaft. A welding device is slidably arranged on the U-shaped frame (16); On the workbench (1), a driving member (2) for driving the U-shaped frame (16) to flip is installed.

2. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 1 is characterized in that: The driving member (2) includes a first gear (20) and a second gear (21). The first gear (20) and the second gear (21) are arranged at one end of the rotating shaft through ratchets and ratchet teeth. On the workbench (1), two driving racks (22) distributed up and down are installed on the side of the U-shaped frame (16) away from the conveying plate (11). The two driving racks (22) are respectively movably engaged with the first gear (20) and the second gear (21).

3. The automatic welding device for producing traffic collision prevention guardrails according to claim 1, characterized in that: On the workbench (1), a conveying member (3) for feeding the cross bars is also installed; On the conveying box (12), a feeding member (4) for conveying the vertical bars is arranged; On the workbench (1), a cooperating member (5) for driving the feeding member (4) to work is also installed; When the conveying box (12) moves along the length direction of the U-shaped frame (10), the cooperating member (5) drives the feeding member (4) to operate, so that the vertical bars are conveyed downward in the conveying box (12).

4. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 1 is characterized in that: On the clamping rod (13), a plurality of clamping grooves (60) extending from top to bottom are equidistantly arranged along its length direction. Along the length direction of the clamping plate (61), clamping plates (61) are symmetrically slidably arranged in the clamping grooves (60). Sponges (62) are installed on the opposite sides of the clamping plates (61).

5. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 4 is characterized in that: A working groove (63) communicating with the clamping groove (60) is opened inside the clamping rod (13). One end of the clamping plate (61) close to the working groove (63) extends into the working groove (63). Inside the working groove (63), a driving member (64) for driving the two clamping plates (61) to move relatively is arranged.

6. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 5 is characterized in that: The driving member (64) includes a driving screw (640). The driving screw (640) is rotatably arranged inside the working groove (63) along the length direction of the working groove (63). Inside the working groove (63), a plurality of sliders (641) corresponding to the clamping grooves (60) are slidably arranged along the height direction of the clamping rod (13). A V-shaped groove (642) is opened on the slider (641). An inclined surface matching the V-shaped groove is opened at the bottom of the clamping plate (61).

7. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 6 is characterized by: A driving block (643) having an inclined top end is slidably disposed inside the working groove (63), and the driving block (643) is threadedly connected to the driving screw (640).

8. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 7 is characterized by: The clamping rod (13) is provided with a fixing member (7) for fixing the driving block (643), the fixing member (7) comprising a fixing groove (70) opened along one side of the width direction of the sliding block (641), a spring telescopic rod (71) is installed in the fixing groove (70), the telescopic end of the spring telescopic rod (71) is connected to the fixing block (72), and the clamping rod (13) is provided with a receiving groove (73) matching with the fixing block (72).

9. The automatic welding equipment for producing traffic anti-collision guardrail according to claim 8, characterized in that: The clamping rod (13) is also provided with a plurality of driving grooves (80) extending in the height direction thereof and penetrating the receiving groove (73); an L-shaped abutting block (81) is longitudinally slidably mounted inside the driving groove (80); the upper end of the abutting block (81) is movably engaged with the fixing block (72); and a matching block (82) movably engaged with the abutting block (81) is provided on one side of the driving block (643) close to the abutting block (81).

10. An automatic welding method for producing a traffic crash barrier, comprising an automatic welding device for producing a traffic crash barrier according to any one of claims 1 to 9, characterized in that: The welding method is as follows: S1, guardrail conveying: the horizontal bar is moved to the conveying plate (11) by the conveying member (3), and then conveyed to the shaped frame (10), and at the same time, the vertical bars are placed one by one on the clamping rod (13) by the loading member (4); S2, fixing the vertical rod: rotating the movable screw rod (640) to drive the driving block (643) to slide inside the working groove (63), so that the slider (641) drives the two clamping plates (61) upward to move closer to each other, thereby clamping the vertical rod in the clamping groove (60); S3, guardrail welding: the driving screw (14) is rotated to drive the U-shaped frame (16) to slide above the clamping rod (13), and then the welding device on the U-shaped frame (16) welds the connection between the horizontal rod and the vertical rod; S4, reverse side welding: After completing welding on one side, the driving screw (14) moves the U-shaped frame (16) toward the end away from the conveying plate (11), so that the U-shaped frame (16) drives the welding device to turn 180 degrees, and the lower part of the guardrail is welded.

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