Automatic welding equipment and processing method for street lamp pole

Abstract

The present invention discloses an automatic welding device and processing method for street light poles, and relates to the technical field of street light pole welding. The present invention includes a welding table and a street light pole, and also includes: a positioning and traction unit, which is arranged on both sides of the welding table to realize the center positioning of the street light pole and the motion traction during welding, and the positioning and traction unit is composed of a positioning component and a limit support component; a welding adjustment unit, and the welding adjustment unit is composed of a fine-tuning component and a welding component. The advantage is that: the present invention adopts a positioning method of center positioning and fine-tuning of a cylinder, which can not only achieve the stability of street light pole welding, avoid bending and causing the deviation of the welding position, but also can realize the automatic adjustment of the height of the welding gun according to the thickness of the lamp pole at the welding part when the lamp pole is moved for welding, so that the distance between the welding gun and the welding seam of the lamp pole remains unchanged, ensuring the synchronization of the welding process, and effectively avoiding the occurrence of over-welding or cold welding.

Description

Technical Field

[0001] The present invention relates to the technical field of street lamp pole welding, and in particular to a street lamp pole automatic welding device and a processing method. Background Art

[0002] Street lights refer to lamps installed on both sides of traffic roads for nighttime lighting. The manufacturing process of street light poles is usually to first use a curling machine to curl the steel plate into a cylindrical pole, and then use welding equipment to weld the poles together;

[0003] Existing welding equipment uses a variety of methods to weld street lamp poles, such as a conical lamp pole joint welding machine head with publication number CN215787666U, which includes: a frame; a plurality of rotating shafts, which are arranged on the front and back sides of the frame; a driving mechanism, which is installed on the front side of the frame, and includes a driving wheel arranged at one end of the rotating shaft and a two-way telescopic device arranged on the frame, and both telescopic ends of the two-way telescopic device are provided with a driving wheel, and the driving wheel and the driving wheel are connected together through a transmission belt, so as to drive the rotating shaft to rotate synchronously through the telescopic movement of the two-way telescopic device;

[0004] The welding gun of the existing welding equipment is usually fixed in position. Since the overall shape of the lamp pole is a cone with a wide bottom and a thin top, when the welding gun is welding the lamp pole, the outer diameter of the lamp pole gradually increases as the lamp pole moves, and the distance between the front of the welding gun and the lamp pole gradually decreases, resulting in a change in the welding distance, which is prone to over-welding or cold welding.

[0005] For example, in the prior art referred to above, the position of the welding head cannot be adjusted. During welding, as the lamp pole moves, the thicker end of the lamp pole will gradually approach the welding head or even squeeze and contact the welding head, affecting the welding effect. In addition, due to the long length of the lamp pole, it is easy to sag and bend to a certain extent under the action of gravity when it is laid flat. However, the device only positions the welding part of the lamp pole, so that the two ends of the lamp pole will bend to different degrees due to different centers of gravity during mobile welding, which can easily lead to position deviation of the welding seam on the lamp pole, affecting the welding accuracy.

[0006] Therefore, it is urgent to design a street lamp pole automatic welding equipment and processing method to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an automatic welding device and a processing method for a street lamp pole, which solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic welding device for street lamp poles, comprising a welding table and a street lamp pole, wherein the street lamp pole has a welding seam to be welded, and further comprising:

[0009] The positioning and traction unit is arranged on both sides of the welding table to realize the center positioning of the street light pole and the motion traction during welding. The positioning and traction unit is composed of a positioning component and a limit support component. The positioning component is used to realize the center positioning of the street light pole to ensure its welding accuracy, and the limit support component is used to support the street light pole and improve the stability of its traction movement;

[0010] The welding adjustment unit is arranged inside the welding table to realize automatic welding of street light poles. The welding adjustment unit consists of a fine-tuning component and a welding component. The fine-tuning component is used to realize fine-tuning of the position of the street light pole during the welding process. The welding component is used to realize automatic welding of the street light pole and realize automatic adjustment of the welding position as the street light pole moves.

[0011] Preferably, the positioning assembly comprises a traction lathe arranged outside the welding table, the traction lathe is provided with a traction track, a moving trolley is provided on the traction track, and the moving trolley can slide freely on the traction track, a supporting placement table is fixedly installed on the moving trolley, and the street lamp pole is placed on the supporting placement table;

[0012] The supporting platform is provided with a center positioning mechanism for center positioning the street lamp pole.

[0013] Preferably, the center positioning mechanism comprises a center positioning cylinder fixedly mounted on the supporting platform, a threaded adjustment rod is threadedly mounted on the center positioning cylinder, an extrusion disk is slidably mounted in the center positioning cylinder, and the extrusion disk is rotatably connected to the threaded adjustment rod, and hydraulic oil is filled between the inner wall of the center positioning cylinder and the extrusion disk;

[0014] A plurality of connecting tubes are fixedly connected to the center positioning cylinder, a piston rack is slidably installed in each connecting tube, an inner arc plate matching the inner wall of the street lamp pole is fixedly installed on the outside of each piston rack, a center column is fixedly installed in the center positioning cylinder, and a return spring is fixedly installed between each piston rack and the center column.

[0015] Preferably, the limit support assembly includes an extension lathe fixedly mounted on the welding table away from the side of the traction lathe, the extension lathe has a support frame fixedly mounted, the traction lathe has two support frames slidably mounted, and compression springs are fixedly mounted between the two support frames, between the right support frame and the support placement table, and between the left support frame and the welding table.

[0016] Preferably, each of the support frames is composed of a lower support platform, a spring shaft and two limit clamps, wherein the spring shaft is fixedly mounted on the lower support platform, and the two limit clamps are rotatably mounted on the spring shaft and are respectively located on both sides of the spring shaft, and the two limit clamps cooperate to provide limit support for the street light pole to improve the stability of the street light pole during welding.

[0017] Preferably, the fine-tuning assembly includes a plurality of adjusting cylinders fixedly mounted in the welding table, a fixing frame fixedly mounted on the driving end of each adjusting cylinder, and a fine-tuning roller fitted with the outer wall of the street light pole fixedly mounted on each fixing frame. The position of the plurality of fine-tuning rollers can be adjusted with the cooperation of the corresponding adjusting cylinders, thereby realizing fine-tuning of the height and horizontal position of the street light pole.

[0018] Preferably, the welding assembly comprises a fixed column fixedly installed in the welding table, a telescopic column is slidably installed on the fixed column, a submerged arc welding gun for welding the welding seam on the street lamp pole is arranged on the telescopic column, and a flux discharge pipe for spraying flux is arranged on the submerged arc welding gun;

[0019] The telescopic column is provided with a driven mechanism for automatically adjusting the height position of the submerged arc welding gun.

[0020] Preferably, the driven mechanism includes a mounting frame fixedly mounted on the telescopic column, a contact wheel is rotatably mounted on the lower part of the mounting frame, and the contact wheel is in contact with the welding joint on the street light pole, and two connecting frames are fixedly mounted on the mounting frame, and baffle plates are rotatably mounted on the two connecting frames through elastic shafts, and the two baffle plates are respectively located on both sides of the street light pole.

[0021] Preferably, a suction pipe is provided on the welding table, and the suction pipe is connected to an external suction pump. When the external suction pump is started, suction is generated through the suction pipe to recover the unwelded flux on the street lamp pole.

[0022] A processing method for automatic welding of street lamp poles, used for the above-mentioned automatic welding equipment for street lamp poles, comprises the following steps:

[0023] S1. When welding the seams of street lamp poles, first pass the street lamp poles through the welding table so that the welding seams on the street lamp poles face upwards, then use the positioning assembly in the positioning traction unit to center the thicker end of the street lamp pole, and use the limit support assembly to support the street lamp pole to improve its placement stability;

[0024] S2. Support the thinner end of the street light pole by welding the fine-tuning component in the adjustment unit, and fine-tune the position of the street light pole to prevent it from shifting;

[0025] S3, start the welding assembly to spray flux and perform submerged arc welding on the welding seam on the street light pole, and at the same time, push the street light pole to move gradually through the positioning traction unit, so that the street light pole is gradually welded from the thinner end to the thicker end when moving, and complete the comprehensive welding;

[0026] S4. When the street light pole is moving during welding, the fine-tuning assembly will gradually adjust its position according to the moving position of the street light pole, so that the street light pole always moves on the center line position, avoiding the welding seam from deviating from the welding assembly when the street light pole moves;

[0027] S5. When the street lamp pole is moving during welding, the welding assembly will automatically adjust the height according to the thickness and position of the street lamp pole, so that the distance between the welding assembly and the welding joint is always the same, so that the weld after welding is uniform and continuous, and avoid over-welding or false welding;

[0028] S6. When the street light pole is moving during welding, the welding assembly can block and intercept the flux used in welding to prevent the flux from falling and affecting the welding effect, and automatically recover the excess flux when the street light pole is moving to avoid flux waste.

[0029] The present invention provides an automatic welding device and processing method for street lamp poles, which has the following beneficial effects:

[0030] 1. When welding street light poles, this welding equipment uses multiple inner arc plates to coordinate with the center of the street light pole and multiple support frames to provide auxiliary support. This can keep the center position of the street light pole unchanged during movement, effectively preventing the pole from bending due to its own weight and ensuring the accuracy of the welding position of the street light pole.

[0031] 2. When welding street light poles, this welding equipment can support the street light poles and improve the stability of the welding process through the cooperation of multiple adjustment cylinders and fine-tuning rollers. In addition, during the mobile welding of the street light poles, the support position and strength can be flexibly adjusted according to the thickness of the street light poles, thereby further ensuring the accuracy of the street light pole position.

[0032] 3. When welding street light poles, this welding equipment uses submerged arc welding with automatic welding method of flux recovery to quickly and stably weld the welding seams on street light poles. The welds are formed in one time and are uniform and natural, with better welding effect.

[0033] 4. When welding street light poles, this welding equipment can automatically change the height of the welding gun according to the different thickness of the welding position of the street light pole when the street light pole is moved for welding, so that the welding gun always keeps the same distance from the welding seam on the street light pole for welding, ensuring the synchronization of welding, which can effectively avoid over-welding or false welding.

[0034] To summarize, the present invention can achieve the stability of street lamp pole welding by adopting a center positioning method combined with cylinder fine-tuning, thereby avoiding bending and causing displacement of the welding position, and can also automatically adjust the height of the welding gun according to the thickness of the lamp pole at the welding position when the lamp pole is moved during welding, so that the distance between the welding gun and the welding seam of the lamp pole remains unchanged, ensuring the synchronization of the welding process, and effectively avoiding over-welding or cold welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0036] Figure 1 This is a schematic diagram of the structure of an automatic welding device for street lamp poles proposed by the present invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0038] Figure 3 It is a structural schematic diagram of the positioning and traction unit in the present invention;

[0039] Figure 4 for Figure 3 Schematic diagram of the structure after removing the traction lathe and street lamp pole;

[0040] Figure 5 It is a structural schematic diagram of the support placement table and the center positioning cylinder in the present invention;

[0041] Figure 6 for Figure 5 A top view of the center positioning cylinder;

[0042] Figure 7 for Figure 6 A cross-sectional view of the middle AA;

[0043] Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure;

[0044] Fig. 9 It is a structural schematic diagram of the welding platform and the street lamp pole in the present invention;

[0045] Fig.10 for Fig. 9Schematic diagram of the internal structure of the welding table;

[0046] Fig.11 It is a structural schematic diagram of the regulating cylinder in the present invention;

[0047] Fig.12 It is a structural schematic diagram of the welding adjustment unit in the present invention;

[0048] Fig.13 for Fig.12 Schematic diagram of the structural decomposition.

[0049] In the figure: 1 welding table, 2 traction lathe, 3 traction rail, 4 street lamp pole, 5 welding seam, 6 moving trolley, 7 support frame, 8 limit clamp, 9 support placement table, 10 compression spring, 11 spring shaft, 12 center positioning cylinder, 13 inner arc plate, 14 threaded adjustment rod, 15 connecting pipe, 16 extrusion plate, 17 hydraulic oil, 18 center column, 19 reset spring, 20 piston frame, 21 back suction pipe, 22 adjustment cylinder, 23 mounting frame, 24 material baffle plate, 25 fixed column, 26 fine-tuning roller, 27 submerged arc welding gun, 28 contact wheel, 29 connecting frame, 30 telescopic column, 31 fixed frame, 32 flux discharge pipe, 33 elastic shaft, 34 extension lathe. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0051] Example 1: Reference Figure 1-Figure 2 , an automatic welding device for street lamp poles, comprising a welding table 1 and a street lamp pole 4, wherein the street lamp pole 4 has a welding seam 5 to be welded;

[0052] After the street light pole 4 is curled, a welding seam 5 to be welded will be formed in the middle thereof, and welding equipment is required to weld the seam 5 so as to weld the street light pole 4 into an integral pole.

[0053] The welding equipment includes: a positioning and traction unit, which is arranged on both sides of the welding table 1 and is used to realize the center positioning of the street light pole 4 and the movement traction during welding, so as to ensure the welding stability of the street light pole 4, so that it will not curl due to its own weight during welding and cause the welding part to shift, and it can be moved within the welding table 1 to realize smooth moving welding and improve welding efficiency.

[0054] The welding adjustment unit is arranged inside the welding table 1 to realize automatic welding of the street light pole 4. It is used to fine-tune the position of the street light pole 4 as the street light pole 4 moves during welding, so that the street light pole 4 always moves horizontally on the initial center line, further ensuring the accuracy of the welding process, and performing smooth dust-free welding on the welding seam 5 on the street light pole 4, so that the weld after welding is more uniform and beautiful.

[0055] Example 2: Reference Figure 1 as well as Figure 3-Figure 8 The technical solution of this embodiment is different from that of the first embodiment in that the positioning and traction unit is composed of a positioning component and a limiting support component, wherein the positioning component is used to realize the center positioning of the street light pole 4 to ensure its welding accuracy, and the limiting support component is used to support the street light pole 4 and improve the stability of its traction movement;

[0056] The positioning assembly includes a traction lathe 2 arranged outside the welding table 1, a traction track 3 is arranged on the traction lathe 2, a moving trolley 6 is arranged on the traction track 3, and the moving trolley 6 can slide freely on the traction track 3, a supporting placement table 9 is fixedly installed on the moving trolley 6, and the street lamp pole 4 is placed on the supporting placement table 9;

[0057] The specific movement modes of the moving car 6 can be divided into two types. One is to move it through the traction of an external traction motor, and the other is to install an electric drive mechanism inside it so that it can automatically slide on the traction track 3. In actual use, adaptive selection can be made according to the on-site environment and processing requirements.

[0058] The support platform 9 is provided with a center positioning mechanism for center positioning the street lamp pole 4, the center positioning mechanism includes a center positioning cylinder 12 fixedly mounted on the support platform 9, a threaded adjustment rod 14 is threadedly mounted on the center positioning cylinder 12, an extrusion disk 16 is slidably mounted in the center positioning cylinder 12, and the extrusion disk 16 is rotatably connected to the threaded adjustment rod 14, and the inner wall of the center positioning cylinder 12 and the extrusion disk 16 are filled with hydraulic oil 17 (as shown in the attached manual) Figure 7 (shown as the horizontal shaded portion in the middle);

[0059] When welding the street light pole 4, the welding seam 5 on the street light pole 4 is first set upward, then passed through the welding table 1 and placed on the supporting table 9, and the thicker end of the street light pole 4 (herein named the big end of the pole, the same applies to the following description) is sleeved onto the outside of the central positioning tube 12 to complete the preliminary positioning of the street light pole 4.

[0060] A plurality of connecting pipes 15 are fixedly connected to the center positioning cylinder 12, a piston rack 20 is slidably installed in each connecting pipe 15, an inner arc plate 13 matching the inner wall of the street lamp pole 4 is fixedly installed on the outside of each piston rack 20, a center column 18 is fixedly installed in the center positioning cylinder 12, and a return spring 19 is fixedly installed between each piston rack 20 and the center column 18;

[0061] Then, the screw adjustment rod 14 is rotated to drive the extrusion plate 16 to move horizontally in the center positioning cylinder 12, thereby adjusting the right side of the extrusion plate 16 (see the instruction manual). Figure 7 The hydraulic oil 17 (in the direction shown) is uniformly pressed into the multiple connecting pipes 15. When the hydraulic oil 17 in the connecting pipe 15 increases, it will squeeze the piston rack 20 therein, thereby pushing the outer inner arc plate 13 to move and approach the inner wall of the street lamp pole 4;

[0062] Since the hydraulic oil 17 is evenly pressed into the multiple connecting tubes 15, the increments of the hydraulic oil 17 in the multiple connecting tubes 15 are the same, that is, the moving distances of the multiple piston racks 20 and the corresponding inner arc plates 13 are always the same, so that the multiple inner arc plates 13 will gradually squeeze and fit with the inner wall of the street light pole 4 when moving, that is, the position of the street light pole 4 is fine-tuned. When the multiple inner arc plates 13 cannot move, each inner arc plate 13 is against the inner wall of the street light pole 4 (that is, the threaded adjustment rod 14 cannot rotate, and each inner arc plate 13 cannot move. As long as any one of the inner arc plates 13 can continue to move, it means that the center positioning is not completely completed). At this time, the center positioning of the street light pole 4 is completed, ensuring that the center position of the street light pole 4 and the center position of the center positioning tube 12 are always on the same center line, so that the center will not be offset due to the movement of the street light pole 4 during welding.

[0063] In a further embodiment, the position limiting support assembly includes an extension lathe 34 (see Appendix 1 of the specification) fixedly mounted on the welding table 1 and away from the traction lathe 2. Figure 1 As shown), a support frame 7 is fixedly mounted on the extension lathe 34, and two support frames 7 are slidably mounted on the traction lathe 2;

[0064] Each support frame 7 is composed of a lower support platform, a spring shaft 11 and two limit clamps 8, wherein the spring shaft 11 is fixedly mounted on the lower support platform, and the two limit clamps 8 are rotatably mounted on the spring shaft 11 and are respectively located on both sides of the spring shaft 11. The two limit clamps 8 cooperate to provide limit support for the street lamp pole 4 to improve the stability of the street lamp pole 4 during welding;

[0065] After the center positioning of the street light pole 4 is completed, by rotating the limiting clamps 8 on the corresponding spring shaft 11 on each supporting frame 7, multiple limiting clamps 8 are all fitted with the outer side of the street light pole 4. At this time, multiple limiting clamps 8 will provide auxiliary support for the street light pole 4, which can improve the placement stability of the street light pole 4 and realize multi-point support of the street light pole 4, which can effectively prevent the street light pole 4 from bending under the action of gravity due to insufficient support points when it is laid flat, thereby further ensuring the position accuracy of the welding seam 5.

[0066] The spring shaft 11 has a certain elasticity and can automatically adjust the positions of the two limit clamps 8 thereon, so that when the street light pole 4 is undergoing mobile welding, the two limit clamps 8 will automatically open under the action of the expansion of the outer diameter of the street light pole 4, which can not only prevent the limit clamps 8 from affecting the normal movement of the street light pole 4, but also achieve stable mobile clamping of the street light pole 4, thereby improving the stability of the mobile welding of the street light pole 4.

[0067] Compression springs 10 are fixedly installed between the two support frames 7, between the right support frame 7 and the support placement table 9, and between the left support frame 7 and the welding table 1 (see the instruction manual). Figure 2-4 As shown in the figure, the overall movement of the two support frames 7 can be realized. When the moving trolley 6 pushes the street light pole 4 to move it from the large end of the pole to the small end of the pole, the movement of the moving trolley 6 will drive the two support frames 7 to move together under the action of the supporting placement table 9 and multiple compression springs 10, thereby avoiding the movement of the moving trolley 6 from being blocked by the support frames 7. When the moving trolley 6 is reset, the two support frames 7 will automatically reset under the action of multiple compression springs 10.

[0068] On the left side of welding station 1 (attached to the instruction manual) Figure 1 A set of moving trolleys 6 and positioning components are also provided. After the small head of the street light pole 4 is welded and passes through the welding table 1, the small head of the street light pole 4 is centrally positioned by the positioning component on the left side, and then the moving trolley 6 is used to pull the positioning component and the street light pole 4 to move together, which can be coordinated with the original moving trolley 6 on the right side to realize the rapid movement of the street light pole 4, improve its welding efficiency, and realize comprehensive welding.

[0069] Example 3: Reference Figure 1-Figure 2 as well as Figure 9-13 The difference between this embodiment and the second embodiment is that the welding adjustment unit is composed of a fine-tuning component and a welding component, wherein the fine-tuning component is used to fine-tune the position of the street light pole 4 during the welding process, and the welding component is used to realize automatic welding of the street light pole 4 and realize automatic adjustment of the welding position as the street light pole 4 moves;

[0070] The fine-tuning assembly includes a plurality of adjusting cylinders 22 fixedly installed in the welding table 1, a fixing frame 31 is fixedly installed on the driving end of each adjusting cylinder 22, and a fine-tuning roller 26 that fits the outer wall of the street lamp pole 4 is fixedly installed on each fixing frame 31. The plurality of fine-tuning rollers 26 can be adjusted in position with the cooperation of the corresponding adjusting cylinders 22, so that the height and horizontal position of the street lamp pole 4 can be fine-tuned;

[0071] After the center positioning and auxiliary support of the large end of the street lamp pole 4 are completed, the small end of the lamp pole will be in the welding table 1. At this time, the multiple adjustment cylinders 22 are started to drive the multiple fine-tuning rollers 26 to move through the multiple fixing frames 31, so that the multiple fine-tuning rollers 26 are squeezed and fit with the side of the street lamp pole 4. At this time, the multiple fine-tuning rollers 26 will squeeze and support the street lamp pole 4 again, further improving the stability of the street lamp pole 4;

[0072] As the street light pole 4 moves during welding, the multiple adjustment cylinders 22 will gradually shrink according to the changes in the thickness of the outer diameter of the street light pole 4, driving the corresponding fine-tuning rollers 26 to move, so that the multiple fine-tuning rollers 26 are always in contact with the side of the street light pole 4, maintaining the stability of the street light pole 4 during movement.

[0073] When the street light pole 4 has position deviation, multiple adjusting cylinders 22 will start to drive the corresponding fine-tuning rollers 26 to make corresponding adjustments, so that the street light pole 4 as a whole maintains the center level and ensures the welding accuracy. If the street light pole 4 deviates slightly to the left during movement, the adjusting cylinder 22 on the left will start to drive the fine-tuning roller 26 on the left to move, and squeeze the street light pole 4 to make it deviate to the right, thereby completing the automatic deviation correction work of the street light pole 4.

[0074] In a further embodiment, the welding assembly includes a fixed column 25 fixedly installed in the welding table 1, a telescopic column 30 is slidably installed on the fixed column 25, a submerged arc welding gun 27 for welding the welding seam 5 on the street lamp pole 4 is provided on the telescopic column 30, and a flux discharge pipe 32 for spraying flux is provided on the submerged arc welding gun 27;

[0075] When the street lamp pole 4 is positioned, the flux discharge pipe 32 will be opened to pour the flux into the welding joint 5 on the surface of the street lamp pole 4, so that the flux is filled on the welding joint 5. At this time, the submerged arc welding gun 27 will be started synchronously to melt the flux at high temperature so that it can be integrated with the surface of the welding joint 5, and the rapid welding of the welding joint 5 can be completed.

[0076] When the street lamp pole 4 is moving, the flux discharge pipe 32 will continuously discharge the flux to fill the welding joint 5, and at the same time cooperate with the submerged arc welding gun 27 to perform submerged arc welding on the welding joint 5, so that the welding efficiency is higher, the welding seam after welding is uniform and beautiful, and no smoke will appear, so dust-free welding can be achieved;

[0077] The flux is made by mixing silicon-manganese alloy, powdered minerals, flux activator, alumina, flow agent and other substances in a certain proportion, which can effectively improve the quality and stability of welding.

[0078] The telescopic column 30 is provided with a driven mechanism for automatically adjusting the height position of the submerged arc welding gun 27, and the driven mechanism includes a mounting frame 23 fixedly mounted on the telescopic column 30, and a contact wheel 28 is rotatably mounted on the lower part of the mounting frame 23, and the contact wheel 28 is fitted with the welding seam 5 on the street lamp pole 4;

[0079] When the street light pole 4 is positioned, the bottom surface of the contact wheel 28 will fit with the welding seam 5 on the street light pole 4. As the welding process proceeds, when the street light pole 4 gradually moves from the small head end to the large head end, the street light pole 4 will gradually push the contact wheel 28 to move upward. When the contact wheel 28 moves upward, it will drive the telescopic column 30 to move upward through the mounting frame 23, thereby driving the submerged arc welding gun 27 on the telescopic column 30 to move upward together. This means that when the outer diameter of the street light pole 4 gradually increases and the height of the welding seam 5 thereon gradually increases, the height of the submerged arc welding gun 27 will increase accordingly, so that the distance difference between the submerged arc welding gun 27 and the welding seam 5 is always consistent, so that the heating temperature and time of each welding point on the welding seam 5 are consistent, so that the weld after welding can be uniform and continuous, and over-welding or cold welding can be avoided.

[0080] A return suction pipe 21 is provided on the welding table 1, and the return suction pipe 21 is connected to an external return suction pump. Two connecting frames 29 are fixedly installed on the mounting frame 23. Baffle plates 24 are rotatably installed on the two connecting frames 29 through elastic shafts 33, and the two baffle plates 24 are respectively located on both sides of the street lamp pole 4. When the external return suction pump is started, suction is generated through the return suction pipe 21 to recover the unwelded flux on the street lamp pole 4.

[0081] The two baffle plates 24 can rise and fall with the rise and fall of the mounting frame 23, and can always fit and squeeze the side of the street lamp pole 4 under the action of the corresponding elastic shaft 33. The two baffle plates 24 can block the flux poured on the street lamp pole 4 to prevent the flux from sliding along the surface of the street lamp pole 4;

[0082] When the street light pole 4 moves during welding, excess flux on the welding seam 5 of the street light pole 4 will move with the movement of the street light pole 4 under the obstruction of the two baffle plates 24. When the flux moves to the lower part of the return suction pipe 21, the external return suction pump will start to return the excess flux on the street light pole 4, completing the recovery of the excess flux and avoiding waste.

[0083] The embodiment of the present invention also provides a processing method for automatic welding of street lamp poles, which is used for the above-mentioned automatic welding equipment for street lamp poles, and comprises the following steps:

[0084] S1. When welding the seam of the street light pole 4, first pass the street light pole 4 through the welding table 1, so that the welding seam 5 on the street light pole 4 faces upward, and then use the positioning component in the positioning traction unit to center the thicker end (i.e., the big end) of the street light pole 4, and use the limit support component to support the street light pole 4 to improve its placement stability;

[0085] S2. Support the thinner end (i.e., the small end) of the street light pole 4 by welding the fine-tuning component in the adjustment unit, and fine-tune the position of the street light pole 4 to prevent it from shifting in position;

[0086] S3, start the welding assembly to spray flux and perform submerged arc welding on the welding seam 5 on the street light pole 4, and push the street light pole 4 to move gradually through the positioning traction unit during welding, so that the street light pole 4 can be gradually welded from the small end to the large end position when moving, completing comprehensive welding;

[0087] S4, while the street lamp pole 4 is moving during welding, the fine-tuning assembly will gradually adjust the position according to the moving position of the street lamp pole 4, so that the street lamp pole 4 always moves on the center line position, and prevent the welding seam 5 from deviating from the welding assembly when the street lamp pole 4 moves;

[0088] S5, while the street lamp pole 4 is moving during welding, the welding assembly will automatically adjust the height according to the different thickness and position of the street lamp pole 4, so that the distance between the welding assembly and the welding joint 5 is always kept the same, so that the weld after welding is uniform and continuous, and over-welding or cold welding is avoided;

[0089] S6. When the street lamp pole 4 is moving during welding, the welding assembly can block and intercept the flux used during welding, which can prevent the flux from falling and affecting the welding effect, and can also realize automatic recovery of excess flux when the street lamp pole 4 is moving, avoiding flux waste.

[0090] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic street light pole welding device, comprising a welding table (1) and a street light pole (4), wherein the street light pole (4) has a welding seam (5) to be welded, characterized in that: Also includes: A positioning and traction unit is arranged on both sides of the welding table (1) and is used to realize the center positioning of the street light pole (4) and the motion traction during welding. The positioning and traction unit is composed of a positioning component and a limit support component, wherein the positioning component is used to realize the center positioning of the street light pole (4) to ensure its welding accuracy. The positioning component comprises a traction lathe (2) arranged outside the welding table (1), the traction lathe (2) is provided with a traction track (3), the traction track (3) is provided with a moving trolley (6), and the moving trolley (6) can slide freely on the traction track (3), the moving trolley (6) is fixedly installed with a support placement table (9), and the street light pole (4) is placed on the support placement table (9); The support platform (9) is provided with a center positioning mechanism for center positioning the street lamp pole (4); The position-limiting support assembly is used to support a street lamp pole (4) and improve the stability of its traction movement. The position-limiting support assembly comprises an extension lathe (34) fixedly mounted on a welding table (1) away from a side of the traction lathe (2), a support frame (7) fixedly mounted on the extension lathe (34), two support frames (7) slidably mounted on the traction lathe (2), and compression springs (10) fixedly mounted between the two support frames (7), between the right support frame (7) and the support placement table (9), and between the left support frame (7) and the welding table (1); A welding adjustment unit is arranged inside a welding table (1) and is used to realize automatic welding of a street light pole (4). The welding adjustment unit is composed of a fine-tuning component and a welding component, wherein the fine-tuning component is used to realize fine-tuning of the position of the street light pole (4) during the welding process. The fine-tuning component comprises a plurality of adjustment cylinders (22) fixedly mounted inside the welding table (1), a fixing frame (31) fixedly mounted on the driving end of each of the adjustment cylinders (22), and a fine-tuning roller (26) that fits the outer wall of the street light pole (4) fixedly mounted on each of the fixing frames (31). The plurality of fine-tuning rollers (26) can be adjusted in position with the cooperation of the corresponding adjustment cylinders (22), thereby realizing fine-tuning of the height and horizontal position of the street light pole (4); The welding assembly is used to realize automatic welding of a street light pole (4) and realize automatic adjustment of the welding position as the street light pole (4) moves. The welding assembly comprises a fixed column (25) fixedly mounted in a welding table (1), a telescopic column (30) slidably mounted on the fixed column (25), a submerged arc welding gun (27) for welding a welding joint (5) on the street light pole (4) being arranged on the telescopic column (30), a flux discharge pipe (32) for spraying flux being arranged on the submerged arc welding gun (27), and a driven mechanism for automatically adjusting the height position of the submerged arc welding gun (27) being arranged on the telescopic column (30).

2. The automatic welding equipment for street lamp poles according to claim 1 is characterized in that: The center positioning mechanism comprises a center positioning cylinder (12) fixedly mounted on a supporting platform (9), a threaded adjustment rod (14) being threadedly mounted on the center positioning cylinder (12), an extrusion disk (16) being slidably mounted in the center positioning cylinder (12), and the extrusion disk (16) being rotatably connected to the threaded adjustment rod (14), and a space between the inner wall of the center positioning cylinder (12) and the extrusion disk (16) being filled with hydraulic oil (17); The center positioning cylinder (12) is fixedly connected to a plurality of connecting tubes (15), each of the connecting tubes (15) is slidably mounted with a piston rack (20), the outside of each piston rack (20) is fixedly mounted with an inner arc plate (13) that matches the inner wall of the street lamp pole (4), a center column (18) is fixedly mounted in the center positioning cylinder (12), and a return spring (19) is fixedly mounted between each piston rack (20) and the center column (18).

3. The automatic welding equipment for street lamp poles according to claim 1 is characterized in that: Each of the support frames (7) is composed of a lower support platform, a spring shaft (11) and two limit clamps (8), wherein the spring shaft (11) is fixedly mounted on the lower support platform, and the two limit clamps (8) are rotatably mounted on the spring shaft (11) and are respectively located on both sides of the spring shaft (11), and the two limit clamps (8) cooperate to provide limit support for the street light pole (4) to improve the stability of the street light pole (4) during welding.

4. The automatic welding equipment for street lamp poles according to claim 1, characterized in that: The driven mechanism comprises a mounting frame (23) fixedly mounted on a telescopic column (30), a contact wheel (28) being rotatably mounted on the lower portion of the mounting frame (23), and the contact wheel (28) being in contact with a welded joint (5) on a street light pole (4), two connecting frames (29) being fixedly mounted on the mounting frame (23), and a material baffle plate (24) being rotatably mounted on both connecting frames (29) via an elastic shaft (33), and the two material baffle plates (24) are respectively located on two sides of the street light pole (4).

5. The automatic welding equipment for street lamp poles according to claim 1 is characterized in that: The welding table (1) is provided with a return suction pipe (21), and the return suction pipe (21) is connected to an external return suction pump. When the external return suction pump is started, suction is generated through the return suction pipe (21) to recover the unwelded flux on the street lamp pole (4).

6. A method for automatic welding of street light poles, used in the automatic welding equipment for street light poles as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1. When welding the seam of a street light pole (4), firstly pass the street light pole (4) through the welding table (1) so that the welding seam (5) on the street light pole (4) faces upward, then use the positioning component in the positioning traction unit to perform center positioning on the thicker end of the street light pole (4), and at the same time use the limit support component to support the street light pole (4) to improve its placement stability; S2, supporting the thinner end of the street light pole (4) by means of a fine-tuning component in the welding adjustment unit, and fine-adjusting the position of the street light pole (4) to prevent the position of the street light pole (4) from being offset; S3, starting the welding assembly to spray flux and perform submerged arc welding on the welding joint (5) on the street light pole (4), and at the same time, gradually moving the street light pole (4) through the positioning traction unit, so that the street light pole (4) is gradually welded from the thinner end of the pole body to the thicker end of the pole body during the movement, thereby completing comprehensive welding; S4, when the street light pole (4) is moving during welding, the fine-tuning component will gradually adjust the position according to the moving position of the street light pole (4), so that the street light pole (4) always moves on the center line position, thereby preventing the welding seam (5) from deviating from the welding component when the street light pole (4) moves; S5. When the street lamp pole (4) is moving during welding, the welding assembly will automatically adjust the height according to the thickness and position of the street lamp pole (4), so that the distance between the welding assembly and the welding joint (5) is always kept the same, so that the weld seam after welding is uniform and continuous, and over-welding or false welding is avoided; S6. When the street light pole (4) is moving during welding, the welding assembly can block and intercept the flux used during welding to prevent the flux from falling and affecting the welding effect, and automatically recycle excess flux when the street light pole (4) is moving to avoid flux waste.

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