A welding device for the production and processing of metal guardrails

Abstract

The present invention discloses a welding device for the production and processing of metal guardrails, including a supporting walking frame. There is a first feeding component on the supporting walking frame. A flipping workbench is arranged inside the supporting walking frame. A first conveyor belt transmission mechanism is arranged on the transverse side of the flipping workbench, and a second conveyor belt transmission mechanism is arranged on the other side. A third conveyor belt transmission mechanism is arranged between the first conveyor belt transmission mechanism and the flipping workbench. A fourth conveyor belt transmission mechanism is arranged on the longitudinal side of the flipping workbench, and a welding robot is arranged on the other side. A second feeding component is arranged on the fourth conveyor belt transmission mechanism. The beneficial effects of the present invention are as follows: The present invention is reasonably designed, with a stable and firm overall structure and strong practicability. It can not only drive the flipping of the metal guardrail and automatically perform double-sided welding, but also accurately and automatically feed the metal guardrail components into the welding area, and can realize the automatic feeding of metal components and the automatic discharging of the welded metal guardrails.

Description

Technical Field

[0001] The present invention relates to the technical field of guardrail welding equipment, and particularly to a welding device for the production and processing of metal guardrails. Background Technique

[0002] Metal guardrails are mainly used for the protection of personal safety and equipment in places such as residences, roads, commercial areas, and public places, and can be seen everywhere in our lives. Metal guardrails usually consist of support columns, crossbars, and vertical bars. In the actual production and processing process, welding is required. Among them, the support column is the main load-bearing structure, which is set perpendicular to the ground and is responsible for providing overall stability and support force. The crossbar connects the support columns and is located at the upper and lower parts of the guardrail to enhance the rigidity of the structure and at the same time provide effective protection for pedestrians and vehicles. The vertical bars are vertically installed between the crossbars to form the enclosure part of the guardrail, which can effectively prevent pedestrians or animals from crossing the boundary.

[0003] Chinese Patent CN215238440U discloses a welding device for guardrail processing, which generally includes a base and a clamping device, and can fixedly clamp the guardrail components to be welded, eliminating the need for manual alignment and fixation of multiple structures of the guardrail, reducing the production cost of the guardrail; the welding device in the above patent can only fixedly clamp the guardrail components and then weld them. In order to ensure the stability and firmness of its own structure, the guardrail needs to be welded on both sides. The welding device in the above patent cannot realize the automatic flipping of the guardrail and still requires manual operation. At the same time, the component support columns, crossbars, and vertical bars that make up the guardrail also need to be manually loaded and placed according to the size and position, resulting in a large manual labor intensity and low efficiency, and it cannot be applied to the welding processing of batch metal guardrails, and further development and improvement are needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for the production and processing of metal guardrails in order to solve the problems in the prior art that the welding device applied to metal guardrails can only weld the guardrail on one side, cannot drive the guardrail to flip for double-sided welding, and at the same time, the component parts of the guardrail also need to be manually loaded and positioned.

[0005] The present invention achieves the above object through the following technical solutions: A welding device for the production and processing of metal guardrails, including a support walking frame, on which there is a first feeding component. Inside the support walking frame, there is a flipping workbench. On the transverse side of the flipping workbench, there is a first conveyor belt transmission mechanism, and on the other side, there is a second conveyor belt transmission mechanism. Between the first conveyor belt transmission mechanism and the flipping workbench, there is a third conveyor belt transmission mechanism. On the longitudinal side of the flipping workbench, there is a fourth conveyor belt transmission mechanism, and on the other side, there is a welding robot. On the fourth conveyor belt transmission mechanism, there is a second feeding component. On the outer surface of one end of the support walking frame, there is a control device.

[0006] Further, the first feeding component includes a movable support beam. The longitudinal ends at the bottom of the movable support beam are respectively slidably connected to the longitudinal ends at the top of the support walking frame along the transverse direction. Inside the support walking frame at the bottom of the movable support beam, there is a U-shaped support mounting plate. At the top of the U-shaped support mounting plate, there is a first lifting device. The output end at the bottom of the first lifting device passes through the U-shaped support mounting plate and is installed with a lifting support mounting plate. On both longitudinal sides of the first lifting device at the top of the lifting support mounting plate, there are first guiding insertion rods, which are inserted and connected to the U-shaped support mounting plate. At the bottom of the transverse end of the lifting support mounting plate, there is a first suction plate fixedly installed. On the transverse side of the first suction plate, there are several second suction plates. The tops of the second suction plates are slidably connected to the bottom of the lifting support mounting plate along the transverse direction. Between the first suction plate and the second suction plates, and between the second suction plates, there are first telescopic devices. At the bottoms of the first suction plate and the second suction plates, there are first electromagnets recessed and embedded.

[0007] Further, several rectangular hollow-outs are equidistantly arranged at the top of the lifting support mounting plate.

[0008] Further, the flipping workbench includes two vertically arranged rotary support seats. One end of the top of each rotary support seat is provided with a rotary shaft. A rotary mounting disk is arranged inside each rotary support seat. The rotary mounting disk is connected to one end of the rotary shaft. A rotary support frame is arranged between the rotary mounting disks. A driving motor is arranged on the outer surface of the rotary support seat on the lateral side of the rotary support frame. The output end of the driving motor is connected to one end of the rotary shaft. A first sliding support mounting rod is arranged between the inner surfaces of the two lateral sides of the rotary support frame corresponding to the axis center of the rotary mounting disk. Two first limit mounting seats are slidably connected to the first sliding support mounting rod. A plurality of second limit mounting seats are slidably connected between the first limit mounting seats on the first sliding support mounting rod. A first limit bolt and a second limit bolt are respectively threadedly mounted at the bottoms of the first limit mounting seat and the second limit mounting seat. The first limit bolt and the second limit bolt respectively pass through the first limit mounting seat and the second limit mounting seat and are in contact with the first sliding support mounting rod. A first support bearing plate and a second support bearing plate are respectively arranged at the tops of the first limit mounting seat and the second limit mounting seat. Grooves are respectively arranged at the tops of the two longitudinal ends of the rotary support frame. Limit support bearing plates are arranged on the inner surfaces of the two lateral ends of the groove. A third support bearing plate is arranged between the limit support bearing plates. A support connecting plate is arranged between the limit support bearing plate and the third support bearing plate. The limit support bearing plate has a T-shaped long hole. A third limit bolt is arranged in the T-shaped long hole. The third limit bolt passes through the T-shaped long hole and is threadedly connected to the rotary support frame. Second electromagnets are recessed and arranged at the tops of the first support bearing plate, the second support bearing plate and the third support bearing plate.

[0009] Further, sliding grooves are arranged at both longitudinal ends of the first sliding support mounting rod. Sliding protrusions are arranged at the positions of the first limit mounting seat and the second limit mounting seat corresponding to the sliding grooves. The sliding protrusions are in matching plug connection with the sliding grooves.

[0010] Further, the second loading component includes a moving support frame. The two ends of the bottom of the moving support frame are respectively and longitudinally slidably connected to the two lateral ends of the top of the fourth conveyor belt transmission mechanism. Two moving support plates are arranged on the longitudinal side of the moving support frame close to the turning workbench. Second sliding support mounting rods are inserted and installed at both lateral ends of the moving support plates. One end of each second sliding support mounting rod is connected to the surface of one longitudinal side of the moving support frame. Second telescopic devices are arranged both between the moving support plates and between the moving support plates and the moving support frame. A second lifting device is arranged on the top of the moving support plates. The output end of the bottom of the second lifting device passes through the moving support plates and is installed with a third suction plate. Second guiding insertion rods are arranged on both lateral sides of the second lifting device at the top of the third suction plate. A third electromagnet is recessed and arranged at the bottom. The second guiding insertion rods are inserted and connected to the moving support plates.

[0011] Further, moving mechanisms are arranged both between the moving support beam and the support walking frame and between the moving support frame and the fourth conveyor belt transmission mechanism. The moving mechanism is a structure in which a rotating motor is installed with a transmission gear meshing with a transmission rack.

[0012] Further, the moving support beam and the U-shaped support mounting plate, the rotating support frame and the first sliding support mounting rod, and the moving support frame and the second sliding support mounting rod are all fixedly connected by welding.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The present invention is reasonably designed, with a stable and firm overall structure and strong practicability. It can not only drive the metal guardrail to turn over and automatically perform double-sided welding, but also accurately send the metal guardrail components into the welding area, be applicable to the welding processing of metal guardrails with different size specifications, and can realize the automatic loading of metal components and the automatic unloading of the welded metal guardrails. While reducing the labor intensity of workers, it greatly improves the production and processing efficiency and is suitable for the batch welding processing of metal guardrails;

[0015] 2. Specifically, the first feeding component can reciprocate linearly in the transverse direction along the support walking frame driven by the moving mechanism. In the first feeding component, the first lifting device can drive the lifting support plate to descend. With the cooperation of the first electromagnetic chuck, the first suction plate and the second suction plate arranged at the bottom of the lifting support plate can adsorb the support columns conveyed by the first conveyor belt transmission mechanism and the vertical rods conveyed by the third conveyor belt transmission mechanism, and then move and place them on the upper parts of the first support bearing plate and the second support bearing plate to realize the automatic feeding of the metal guardrail components. At the same time, the first telescopic device can adjust the positions between the support columns and the vertical rods according to the actual size design requirements of the metal guardrail to position the support columns and the vertical rods, and move the support columns and the vertical rods to the upper parts of the first support bearing plate and the second support bearing plate respectively. In addition, the first feeding component can also move the welded metal guardrail to the upper part of the second conveyor belt transmission mechanism and convey it to the next process for processing to complete the automatic discharging of the metal guardrail welding process.

[0016] 3. Specifically, the second lifting device arranged in the second feeding component can drive the third suction plate to descend. The third electromagnet arranged at its bottom can adsorb the cross bars conveyed by the fourth conveyor belt transmission mechanism, and then drive it to rise. With the cooperation of the moving mechanism, the moving support frame moves towards the direction of the flipping workbench. At the same time, according to the positions of the two third support bearing plates, the position and the distance between each other of the third suction plate are adjusted through the second telescopic device, so as to place the two cross bars on the third support bearing plates at both ends of the rotating support frame for positioning respectively to complete the feeding operation of the cross bar components.

[0017] 4. Specifically, the driving motor arranged in the flipping workbench can drive the rotating support frame to flip with the cooperation of the rotating shaft and the rotating mounting disc to realize the double-sided welding process of the metal guardrail adsorbed and fixed on the rotating support frame. The first support bearing plate and the second support bearing plate are respectively used to support and bear the support columns and the vertical rods, and the limiting support bearing plate and the third support bearing plate are used to support and bear the cross bars. The second electromagnets arranged on their respective upper parts can adsorb and fix the support columns, the vertical rods and the cross bars respectively to ensure the stability of the positions of each component during the metal guardrail welding process and after the rotating support frame flips, and ensure the quality of the welding process. The transverse positions of the first support bearing plate and the second support bearing plate can be adjusted through the first limiting bolt and the second limiting bolt arranged therein to be suitable for supporting and bearing the support columns and the vertical rods at different positions, and the longitudinal positions of the limiting support bearing plate and the third support bearing plate can be adjusted through the third limiting bolt to be suitable for supporting and bearing the cross bars at different positions, so as to realize the welding process for metal guardrails of different size specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 Schematic diagram of the three-dimensional structure of the first feeding component in the present invention;

[0020] Figure 3 Schematic diagram of the three-dimensional structure of the first feeding component from another perspective in the present invention;

[0021] Figure 4 Schematic diagram of the three-dimensional structure of the flipping workbench in the present invention;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the flipping workbench from another perspective in the present invention;

[0023] Figure 6 is Figure 4 the enlarged view of part A in;

[0024] Figure 7 is Figure 5 the enlarged view of part B in;

[0025] Figure 8 Schematic diagram of the three-dimensional structure of the second feeding component in the present invention;

[0026] Figure 9 Schematic diagram of the three-dimensional structure of the second feeding component from another perspective in the present invention.

[0027] In the figure: 1 - support walking frame, 2 - first feeding component, 3 - flipping workbench, 4 - first conveyor belt transmission mechanism, 5 - second conveyor belt transmission mechanism, 6 - third conveyor belt transmission mechanism, 7 - fourth conveyor belt transmission mechanism, 8 - welding robot, 9 - second feeding component, 10 - control device, 11 - moving mechanism;

[0028] 201 - moving support beam, 202 - U-shaped support mounting plate, 203 - first lifting device, 204 - lifting support mounting plate, 205 - first guiding insertion rod, 206 - first suction plate, 207 - second suction plate, 208 - first telescopic device, 209 - first electromagnet, 210 - rectangular hollow;

[0029] 301 - rotating support base, 302 - rotating mounting disc, 303 - rotating support frame, 304 - driving motor, 305 - first sliding support mounting rod, 306 - first limit mounting seat, 307 - second limit mounting seat, 308 - first limit bolt, 309 - second limit bolt, 310 - first support bearing plate, 311 - second support bearing plate, 312 - limit support bearing plate, 313 - third support bearing plate, 314 - support connecting plate, 315 - T-shaped long hole, 316 - third limit bolt, 317 - second electromagnet;

[0030] 901 - Mobile support frame, 902 - Mobile support plate, 903 - Second sliding support mounting rod, 904 - Second telescopic device, 905 - Second lifting device, 906 - Third suction plate, 907 - Second guiding plugging rod, 908 - Third electromagnet. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0033] Combined with Figure 1 A welding device for the production and processing of metal guardrails as shown, including a support walking frame 1, a first feeding component 2 on the support walking frame 1, a turning workbench 3 arranged inside the support walking frame 1, a first conveyor belt transmission mechanism 4 arranged on the lateral side of the turning workbench 3 for the conveyance of component support columns, a second conveyor belt transmission mechanism 5 arranged on the other side for the discharging of the welded metal guardrails, a third conveyor belt transmission mechanism 6 arranged between the first conveyor belt transmission mechanism 4 and the turning workbench 3 for the conveyance of component vertical rods, a fourth conveyor belt transmission mechanism 7 arranged on the longitudinal side of the turning workbench 3 for the conveyance of component crossbars, a welding robot 8 arranged on the other side, a second feeding component 9 arranged on the fourth conveyor belt transmission mechanism 7, and a control device 10 arranged on the outer surface of one end of the support walking frame 1.

[0034] As Figures 2 to 3As shown, the first loading component 2 includes a movable support beam 201. The longitudinal two ends of the bottom of the movable support beam 201 are respectively slidably connected to the longitudinal two ends of the top of the support walking frame 1 in the transverse direction. A U-shaped support mounting plate 202 is arranged inside the support walking frame 1 at the bottom of the movable support beam 201. A first lifting device 203 is arranged at the top of the U-shaped support mounting plate 202. The bottom output end of the first lifting device 203 passes through the U-shaped support mounting plate 202 and is installed with a lifting support mounting plate 204. First guiding plug rods 205 are arranged on both longitudinal sides of the first lifting device 203 at the top of the lifting support mounting plate 204. The first guiding plug rods 205 are plugged and connected with the U-shaped support mounting plate 202. A linear bushing is arranged between the first guiding plug rods 205 and the U-shaped support mounting plate 202. A first suction plate 206 is fixedly installed at one transverse end of the bottom of the lifting support mounting plate 204. A plurality of second suction plates 207 are arranged on one transverse side of the first suction plate 206. The tops of the second suction plates 207 are all slidably connected to the bottom of the lifting support mounting plate 204 in the transverse direction. First telescopic devices 208 are arranged between the first suction plate 206 and the second suction plates 207 and between the second suction plates 207, for adjusting the distances between the first suction plate 206 and the second suction plates 207 and between the second suction plates 207, so as to be able to place the adsorbed support columns and vertical rods on the upper parts of the first support bearing plate 310 and the second support bearing plate 311 respectively. First electromagnets 209 are recessed and installed at the bottoms of the first suction plate 206 and the second suction plates 207. The surface of the bottom of the first suction plate 206 is in the same plane as the bottom surface of the first electromagnet 209 on the first suction plate 206. The surface of the bottom of the second suction plate 207 is in the same plane as the bottom surface of the first electromagnet 209 on the second suction plate 207, for moving the support columns and vertical rods conveyed by the first conveyor belt transmission mechanism 4 and the third conveyor belt transmission mechanism 6 to the first support bearing plate 310 and the second support bearing plate 311 respectively, and being able to adjust the positions between the support columns and the vertical rods according to the actual size design requirements of the metal guardrail, for realizing the positioning of the support columns and the vertical rods, and at the same time being able to move the welded metal guardrail to the upper part of the second conveyor belt transmission mechanism 5 and convey it to the next process for processing.

[0035] As Figures 4 to 7As shown in the figure, the flipping workbench 3 includes two vertically arranged rotary support seats 301. One end of the top of each rotary support seat 301 is provided with a rotary shaft, and a rotary bearing is arranged between the rotary support seat 301 and the rotary shaft; a rotary mounting plate 302 is arranged inside each rotary support seat 301. The rotary mounting plate 302 is connected to one end of the rotary shaft. A rotary support frame 303 is arranged between the rotary mounting plates 302. The connections between the rotary mounting plate 302 and the rotary shaft and between the rotary mounting plate 302 and the rotary support frame 303 are both fixed connections. A driving motor 304 is arranged on the outer surface of the rotary support seat 301 on the lateral side of the rotary support frame 303. The output end of the driving motor 304 is connected to one end of the rotary shaft. In order to drive the rotary support frame 303 to rotate through the cooperation of the driving motor 304, the rotary shaft and the rotary mounting plate 302, so as to facilitate the flipping of the metal guardrail for double-sided welding processing; a first sliding support mounting rod 305 is arranged between the inner surfaces on the two lateral sides of the rotary support frame 303 corresponding to the axis of the rotary mounting plate 302. Two first limit mounting seats 306 are slidably connected to the first sliding support mounting rod 305. A number of second limit mounting seats 307 are slidably connected between the first limit mounting seats 306 on the first sliding support mounting rod 305. First limit bolts 308 and second limit bolts 309 are respectively threadedly mounted at the bottoms of the first limit mounting seats 306 and the second limit mounting seats 307. The first limit bolts 308 and the second limit bolts 309 respectively pass through the first limit mounting seats 306 and the second limit mounting seats 307 and are in contact with the first sliding support mounting rod 305. A first support bearing plate 310 and a second support bearing plate 311 are respectively arranged at the tops of the first limit mounting seats 306 and the second limit mounting seats 307. In order to meet the actual dimensional design requirements, the positions of the first support bearing plate 310 and the second support bearing plate 311 are adjusted through the cooperation of the first limit bolts 308 and the second limit bolts 309 in the first limit mounting seats 306 and the second limit mounting seats 307, so as to respectively support and bear the support columns and vertical rods at different positions, so as to realize the welding processing and use of metal guardrails of different size specifications;The top of the longitudinal ends of the rotating support frame 303 has grooves. The inner surfaces of the transverse ends of the grooves are both provided with limit support bearing plates 312. A third support bearing plate 313 is arranged between the limit support bearing plates 312. A support connecting plate 314 is arranged between the limit support bearing plates 312 and the third support bearing plate 313. The limit support bearing plate 312 has a T-shaped long hole 315. A third limit bolt 316 is arranged in the T-shaped long hole 315. The third limit bolt 316 passes through the T-shaped long hole 315 and is threadedly connected to the rotating support frame 303. The position of the third support bearing plate 313 is adjusted by the third limit bolt 316 to increase the dimensional range of the welding process of the metal guardrail. Second electromagnets 317 are recessed and arranged at the tops of the first support bearing plate 310, the second support bearing plate 311, and the third support bearing plate 313 to adsorb and fix the support columns, vertical rods, and horizontal rods of the support bearing, ensuring the stability and firmness of the positions of all components during the welding process, and facilitating the welding process after the metal guardrail is flipped. In addition, the top surfaces of the first support bearing plate 310, the second support bearing plate 311, the limit support bearing plate 312, the third support bearing plate 313, and the second electromagnet 317 are all located in the same plane to facilitate ensuring the precision of the welding process of the metal guardrail.;

[0036] As Figures 8 to 9 shown, the second feeding component 9 includes a moving support frame 901. The two longitudinal ends of the bottom of the moving support frame 901 are respectively slidably connected to the two transverse ends of the top of the fourth conveyor belt transmission mechanism 7 along the longitudinal direction. Two moving support plates 902 are arranged on the longitudinal side of the moving support frame 901 close to the flipping workbench 3. Second sliding support mounting rods 903 are inserted and installed at the two transverse ends of the moving support plates 902. One end of the second sliding support mounting rod 903 is connected to the longitudinal side surface of the moving support frame 901. Second telescopic devices 904 are arranged between the moving support plates 902 and between the moving support plates 902 and the moving support frame 901 to adjust the distances between the moving support plates 902 and between the moving support plates 902 and the moving support frame 901. A second lifting device 905 is arranged on the top of the moving support plate 902. The bottom output end of the second lifting device 905 passes through the moving support plate 902 and is installed with a third suction plate 906. Second guiding insertion rods 907 are arranged on both transverse sides of the second lifting device 905 at the top of the third suction plate 906. A third electromagnet 908 is recessed and arranged at the bottom. The second guiding insertion rods 907 are inserted and connected to the moving support plate 902. The third electromagnet 908 adsorbs the horizontal rods conveyed by the fourth conveyor belt transmission mechanism 7, drives its lifting in cooperation with the second lifting device 905, and combines with the arranged moving support frame 901 that can move longitudinally, thereby realizing the movement and placement of the horizontal rods onto the upper parts of the limit support bearing plate 312 and the third support bearing plate 313. In addition, the distance between the horizontal rods can also be adjusted by the second telescopic device 904 to position and place the horizontal rods.

[0037] A number of rectangular hollowings 210 are equidistantly arranged at the top of the lifting support mounting plate 204 to facilitate reducing the overall weight of the lifting support mounting plate 204; sliding grooves are provided at both longitudinal ends of the first sliding support mounting rod 305, and sliding protrusions are provided at the corresponding positions of the first limit mounting seat 306 and the second limit mounting seat 307. The sliding protrusions are inserted and connected with the sliding grooves in a matching manner to ensure that the tops of the first support bearing plate 310, the second support bearing plate 311 and the second electromagnet 317 can be on the same plane as the top of the rotary support frame 303; moving mechanisms 11 are provided between the moving support beam 201 and the support traveling frame 1, and between the moving support frame 901 and the fourth conveyor belt conveying mechanism 7. The moving mechanism 11 is a structure in which a rotary motor is installed with a transmission gear meshing with a transmission rack to drive the first feeding assembly 2 to reciprocate horizontally and drive the second feeding assembly 9 to reciprocate longitudinally; the moving support beam 201 and the U-shaped support mounting plate 202, between the rotary support frame 303 and the first sliding support mounting rod 305, and between the moving support frame 901 and the second sliding support mounting rod 903 are fixedly connected by welding to ensure the stability and firmness between the finishing structures and improve the safety and service life of use; the first conveyor belt conveying mechanism 4, the second conveyor belt conveying mechanism 5, the third conveyor belt conveying mechanism 6, and the fourth conveyor belt conveying mechanism 7 have the same structure, except for the different sizes. Its structure includes a feeding frame, on which conveying rollers are installed, and conveyor belts are arranged on the conveying rollers. One end of the conveyor belt is a driving roller, and a rotary motor is installed at one end of the driving roller. The rotary motor is installed on the feeding frame to drive the conveying roller to rotate, and the components of the metal guardrail are conveyed through the conveyor belt; the rotary motors, welding robots 8, first lifting devices 203, first telescopic devices 208, first electromagnets 209, driving motors 304, second electromagnets 317, second telescopic devices 904, second lifting devices 905 and third electromagnets 908 in the first conveyor belt conveying mechanism 4, the second conveyor belt conveying mechanism 5, the third conveyor belt conveying mechanism 6 and the fourth conveyor belt conveying mechanism 7 are all electrically connected to the control device 10 to control their respective working states. Among them, the first lifting device 203 and the second lifting device 905 are both hydraulic cylinders, and the first telescopic device 208 and the second telescopic device 904 are electric telescopic rods; in addition, position sensors are provided on the lifting support mounting plate 204 and the third suction plate 906 and are electrically connected to the control device 10, which can more accurately control the lifting support mounting plate 204 and the third suction plate 906 to move to the specified positions, so that the support columns, vertical rods and horizontal rods can be accurately placed on the upper parts of the first support bearing plate 310, the second support bearing plate 311 and the third support bearing plate 313 for welding processing.

[0038] In use, first, according to the design dimension requirements of the metal guardrail welding process, the first support and bearing plate and the second support and bearing plate are respectively adjusted to the specified lateral positions through the first limit bolt and the second limit bolt, and the third support and bearing plate is adjusted to the specified longitudinal position through the third limit bolt. Then, the component support columns, vertical bars, and horizontal bars of the metal guardrail are respectively conveyed through the first conveyor belt conveying mechanism, the third conveyor belt conveying mechanism, and the fourth conveyor belt conveying mechanism. Driven by the moving mechanism, the first feeding assembly moves above the third conveyor belt conveying mechanism. Then, it is controlled that the first telescopic device drives to adjust the distances between the first suction plate and the second suction plate and between the second suction plates, so that there is a second suction plate above each vertical bar conveyed by the third conveyor belt transmission mechanism. Then, it is controlled that the lifting device drives the lifting support mounting plate to descend, so that the bottom of the second suction plate contacts the top of the vertical bar. Then, it is controlled that the first electromagnet at the bottom of the second blanking plate works to adsorb the vertical bar. Then, it is controlled that the lifting device drives the lifting support mounting plate to ascend, so that the vertical bar follows and ascends. Then, the moving mechanism drives the entire first feeding assembly to move towards the flipping workbench. At the same time, the first telescopic device drives the second suction plate to move, so that the distance between the second suction plates is the same as the distance between the second support and bearing plates. When the first feeding assembly moves directly above the flipping workbench and the position of the second support and bearing plate corresponds to the position below the second suction plate, then it is controlled that the first lifting device drives the lifting support mounting plate to descend, so that the bottom of the vertical bar contacts the top of the second support and bearing plate. At the same time, it is controlled that the first electromagnet at the bottom of the second suction plate stops working, and the second electromagnet on the second support and bearing plate starts to work to adsorb and fix the vertical bar, completing the automatic feeding operation of the vertical bar of the metal guardrail component;

[0039] Then, it is controlled that the lifting device drives the lifting support mounting plate to ascend. Driven by the moving mechanism, the first feeding assembly is moved above the first conveyor belt conveying mechanism, so that the first suction plate is aligned with the support column directly below. Then, it is controlled that the lifting device drives the lifting support mounting plate to descend, so that the bottom of the first suction plate contacts the support column. It is controlled that the first electromagnet at the bottom of the first suction plate works to adsorb the support column. Then, it is controlled that the first lifting device drives the lifting support mounting plate to ascend, so that the support column follows and ascends. Then, driven by the moving mechanism, the entire first feeding assembly is moved towards the flipping workbench until the support column is aligned with the position of the first support and bearing plate at one end of the rotating support frame. Then, it can be controlled that the first lifting device drives the lifting support mounting plate to descend, so that the bottom of the support column contacts the top of the first support and bearing plate. Then, it can be controlled that the first electromagnet at the bottom of the first suction plate stops working, and the second electromagnet on the first support and bearing plate starts to work to adsorb and fix the support column, completing the automatic feeding operation of the support column at one end of the metal guardrail. Then, the automatic feeding operation of the support column at the other end of the metal guardrail is completed according to the above operation;

[0040] After the first loading component is removed, the first telescopic device in the second loading component can be controlled to drive the moving support plate to move, so that the two third suction plates are aligned with the two cross bars transmitted on the fourth conveyor belt transmission mechanism. Then, the second lifting device is controlled to drive the third suction plate to descend, so that the bottom of the third suction plate contacts the top of the cross bar. Then, the third electromagnet is controlled to start working to adsorb the cross bar. Then, the second lifting device is controlled to drive the third suction plate to rise, so that the cross bar follows and rises. Then, the moving mechanism is used to drive the moving support frame to move, so that the cross bar moves above the flipping workbench. At the same time, the second telescopic device is controlled to drive the third suction plate to move, so that the distance between the cross bars matches the length of the vertical bar. When the cross bars move to both ends of the vertical bar respectively, the second lifting device is controlled to drive the third suction plate to descend, so that the bottom of the cross bar contacts the top of the third support bearing plate. At this time, both ends of the cross bar contact the inner surfaces of the two support columns respectively, and one side surface of the cross bar contacts one end of the vertical bar. Then, the third electromagnet is controlled to stop working, and the second electromagnet on the third bearing plate is controlled to start working to adsorb and fix the cross bar, completing the automatic loading operation of the cross bar;

[0041] Then, after the second loading component moves, the welding robot can be used to perform welding processing operations on one side of the metal guardrail. After the welding processing on one side surface is completed, the driving motor is controlled to start working. With the cooperation of the rotating shaft and the rotating mounting disc, the rotating support frame drives the metal guardrail to rotate 180 degrees. Then, the welding robot can be used to perform welding processing on the other side surface of the metal guardrail to achieve double-sided automatic welding processing of the metal guardrail;

[0042] Finally, after the welding processing is completed, the driving motor is controlled to start working. With the cooperation of the rotating shaft and the rotating mounting disc, the rotating support frame drives the metal guardrail to rotate 180 degrees. The metal guardrail is above the rotating support frame. Driven by the moving mechanism, the first loading component moves to directly above the metal guardrail. Then, the first lifting device is controlled to drive the lifting support mounting plate to descend, so that the bottoms of the first suction plate and the second suction plate both contact the top of the metal guardrail. Then, all the second electromagnets are controlled to stop working, and all the first electromagnets are controlled to start working to adsorb the metal guardrail. Then, the first lifting device is controlled to drive the lifting support mounting plate to rise, so that the welded metal guardrail follows and rises. Then, with the cooperation of the moving mechanism, the metal guardrail adsorbed on the first loading component is driven to move above the second conveyor belt transmission mechanism. The first lifting device is controlled to drive the lifting support mounting plate to descend, so that the bottom of the metal guardrail contacts the conveyor belt at the top of the second conveyor belt transmission mechanism. At the same time, all the first electromagnets are controlled to stop working, and the welded metal guardrail is conveyed to the next process for processing through the second conveyor belt transmission mechanism, completing the automatic unloading operation of the metal guardrail welding processing.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding device for producing and processing metal guardrails, comprising a supporting traveling frame, characterized in that: The supporting walking frame is provided with a first feeding assembly, a turning workbench is arranged inside the supporting walking frame, a first conveyor belt transmission mechanism is arranged on one lateral side of the turning workbench, and a second conveyor belt transmission mechanism is arranged on the other side, a third conveyor belt transmission mechanism is arranged between the first conveyor belt transmission mechanism and the turning workbench, a fourth conveyor belt transmission mechanism is arranged on one longitudinal side of the turning workbench, and a welding robot is arranged on the other side, a second feeding assembly is arranged on the fourth conveyor belt transmission mechanism, and a control device is arranged on the outer surface of one end of the supporting walking frame; The turning workbench comprises two vertically arranged rotating support seats, one end of the top of the rotating support seat is provided with a rotating shaft, the inner side of the rotating support seat is provided with a rotating mounting disk, the rotating mounting disk is connected to one end of the rotating shaft, a rotating support frame is provided between the rotating mounting disks, a driving motor is provided on the outer surface of the rotating support seat on the lateral side of the rotating support frame, the output end of the driving motor is connected to one end of the rotating shaft, a first sliding support mounting rod is provided between the inner surfaces of the lateral sides of the rotating support frame corresponding to the axis of the rotating mounting disk, and the first sliding support mounting rod is slidably connected to two first limiting The first and second limit mounting seats are respectively threadedly installed with a first limit bolt and a second limit bolt at the bottom of the first and second limit mounting seats, and the first limit bolt and the second limit bolt respectively pass through the first and second limit mounting seats and contact with the first sliding support mounting rod, and the first and second limit mounting seats are respectively provided with a first support bearing plate and a second support bearing plate at the top of the first and second limit mounting seats. The tops of the two longitudinal ends of the rotating support frame have grooves, and the grooves have two transverse ends The inner surfaces of the ends are all provided with a limited support bearing plate, a third support bearing plate is provided between the limited support bearing plates, a support connecting plate is provided between the limited support bearing plate and the third support bearing plate, the limited support bearing plate has a T-shaped long hole, a third limiting bolt is provided in the T-shaped long hole, the third limiting bolt passes through the T-shaped long hole and is threadedly connected to the rotating support frame, the first support bearing plate, the second support bearing plate and the third support bearing plate are all recessed with a second electromagnet on the top, the first support bearing plate, the second support bearing plate, the limited support bearing plate, the third The support bearing plate and the top surface of the second electromagnet are located in the same plane, the first loading component adsorbs the support column transported from the first conveyor belt transmission mechanism and the vertical rod transported from the third conveyor belt transmission mechanism, the second loading component places the two cross bars on the third support bearing plates at both ends of the rotating support frame for positioning, the first support bearing plate and the second support bearing plate are used to support the support column and the vertical rod, respectively, the limiting support bearing plate and the third support bearing plate are used to support the support cross bar, the first support bearing plate, the second support bearing plate and the third support bearing plate are used to adsorb and fix the support column, the vertical rod and the cross bar, respectively.

2. A welding device for producing and processing metal guardrails according to claim 1, characterized in that The first loading assembly includes a movable support beam, and the longitudinal ends of the bottom of the movable support beam are respectively connected to the longitudinal ends of the top of the supporting walking frame in a transverse sliding manner. The bottom of the movable support beam is located on the inner side of the supporting walking frame and a U-shaped support mounting plate is provided. The top of the U-shaped support mounting plate is provided with a first lifting device. The bottom output end of the first lifting device passes through the U-shaped support mounting plate and a lifting support mounting plate is installed. The top of the lifting support mounting plate is located on both sides of the longitudinal direction of the first lifting device and a first guide plug-in rod is provided. The first guide plug-in rod is plug-connected with the U-shaped support mounting plate, and a first suction plate is fixedly installed at one transverse end of the bottom of the lifting support mounting plate. A plurality of second material suction plates are arranged on one lateral side of the first material suction plate, and the tops of the second material suction plates are slidably connected to the bottom of the lifting support mounting plate in the lateral direction, and a first telescopic device is arranged between the first material suction plate and the second material suction plate, and a first electromagnet is recessed in the bottom of the first material suction plate and the bottom of the second material suction plate, and the different distances between the first material suction plate and the second material suction plate are adjusted by the first telescopic device to respectively realize the support column on the first conveyor belt transmission mechanism being adsorbed and moved to the first support bearing plate, the vertical rod on the second conveyor belt transmission mechanism being adsorbed and moved to the second support bearing plate, and the metal guardrail that has been welded and processed being adsorbed and moved to the upper part of the second conveyor belt transmission mechanism.

3. A welding device for producing and processing metal guardrails according to claim 2, characterized in that : Several rectangular hollows are equidistantly arranged on the top of the lifting support mounting plate.

4. A welding device for producing and processing metal guardrails according to claim 2, characterized in that : The first sliding support mounting rod is provided with sliding grooves at both longitudinal ends, and the first limit mounting seat and the second limit mounting seat are provided with sliding protrusions corresponding to the positions of the sliding grooves, and the sliding protrusions are matched with the sliding grooves and plugged in and connected.

5. A welding device for producing and processing metal guardrails according to claim 2, characterized in that The lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of the lifting of 6. A welding device for producing and processing metal guardrails according to claim 5, characterized in that A moving mechanism is provided between the moving support beam and the supporting walking frame and between the moving support frame and the fourth conveyor belt transmission mechanism. The moving mechanism is a structure in which a rotating motor is installed with a transmission gear meshing with a transmission rack.

7. A welding device for producing and processing metal guardrails according to claim 6, characterized in that The movable support beam and the U-shaped support mounting plate, the rotating support frame and the first sliding support mounting rod, and the movable support frame and the second sliding support mounting rod are all fixedly connected by welding.

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