Weld bead coating apparatus

Abstract

The application provides a welding seam coating device, which comprises a frame assembly, a wheel assembly, a guide assembly and a coating assembly. The wheel assembly comprises a first wheel assembly and a second wheel assembly, which are connected with the frame assembly respectively. The first wheel assembly and the second wheel assembly each comprise two wheels arranged on the corresponding frame assembly respectively. The wheels are flexible wheels, which form surface contact with the walking surface when walking. The contact surface shape of the wheels changes with the shape of the walking surface. The guide assembly is arranged at the bottom of the frame assembly and is used for guiding the welding seam coating device. The coating assembly is arranged on the frame assembly and is used for coating the welding seam. The welding seam coating device provided by the application has the advantages of high coating efficiency and the ability to meet the coating requirements of different shapes of coating surfaces.

Description

Technical Field

[0001] This invention relates to the field of automated welding equipment technology, and in particular to a weld seam adhesive application device. Background Technology

[0002] Due to construction limitations, the surface treatment quality of welded joints in steel structure bridges cannot be guaranteed. In addition, the weld surface is uneven, and the coating applied using traditional coating systems is either too thin or too thick, making it difficult to achieve the desired anti-corrosion effect. Cracking, peeling, and rusting often occur, which greatly affects the safety and aesthetics of modern steel structure bridges and results in high maintenance costs. This is a weak link in the anti-corrosion coating of steel bridges.

[0003] Currently, applying adhesive to weld seams mainly relies on manual labor, which is inefficient. Furthermore, bridge weld seams are located on various surfaces, including the top, sides, and bottom, making manual operation inconvenient. Additionally, the bridge surface where the weld seams are located varies, with some areas being flat and others curved, and there is currently no automated equipment capable of applying adhesive to weld seams with different surface shapes. Manual operation is not only inefficient and inconsistent in terms of coating quality, but also poses risks to operator safety. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a weld seam adhesive application device to solve the problems of low adhesive application efficiency and inability to meet the adhesive application requirements of different shaped adhesive surfaces in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A weld seam adhesive application device includes a frame assembly, a wheel assembly, a guide assembly, and an adhesive application assembly; The wheel assembly includes a first wheel assembly and a second wheel assembly, which are respectively connected to the frame assembly. Each of the first wheel assembly and the second wheel assembly includes two wheels respectively disposed on the corresponding frame assembly. The wheels are flexible wheels. When the wheels move, the wheels form surface contact with the walking surface. The shape of the contact surface between the wheels and the walking surface changes with the shape of the walking surface. The guide assembly is located at the bottom of the frame assembly and is used to guide the weld adhesive application device. The adhesive application assembly is located on the vehicle frame assembly and is used to apply adhesive to the weld seams.

[0006] Further improvements to the above technical solution are: The frame assembly includes a main frame and four mounting brackets respectively connected to the main frame; the main frame includes a first wheel main frame, a second wheel main frame and a connecting beam for connecting the first wheel main frame and the second wheel main frame; the mounting brackets are used to mount the corresponding wheels on the corresponding main frames, and the mounting angle between the mounting brackets and the main frame is adjustable.

[0007] The wheel includes a hub assembly, a wheel body assembly, and an elastic support assembly; The hub assembly includes multiple spokes, telescopic rods respectively disposed on the spokes, and elastic elements; the spokes are hollow cylindrical structures, the elastic elements are disposed inside the spokes, one end of the telescopic rod is disposed inside the spoke and abuts against the elastic element, and the other end is connected to the wheel body assembly; The wheel body assembly includes multiple wheel body units, which are hinged end to end. The number of wheel body units is three times the number of spokes. Every three wheel body units form a unit group, and the middle wheel body unit in each unit group is the first body unit, and the two wheel body units adjacent to it are the second body units. The first body unit is connected to the corresponding telescopic rod, and the second body unit is connected to the spokes through an elastic support assembly. All wheel body units are electromagnets.

[0008] The frame assembly also includes a wheel damping device, one end of which is connected to the main frame and the other end of which is connected to the outer surface of the mounting bracket.

[0009] The guide assembly includes a carriage, a slider disposed on the carriage, a mounting block connected to the slider, and a guide rod assembly disposed on the mounting block; The slider is used to drive the mounting block to slide along the slide frame; The mounting block has multiple guide rod mounting holes, which extend from the end of the mounting block away from the slider to the end closer to the slider. The guide rod assembly includes multiple guide rod units, each guide rod unit including a guide rod, a guide elastic device, and a guide wheel; one end of the guide elastic device abuts against the guide rod, and the other end abuts against the bottom of the guide rod mounting hole; the travel direction of the guide wheel is consistent with the travel direction of the wheel.

[0010] A guide buffer device is provided between the mounting block and the slider, and the guide wheel is an electromagnet.

[0011] The guide assembly comprises two sets, which are respectively mounted on the first wheel main frame and the second wheel main frame. Each set of the guide assembly contains two guide components, which are spaced apart and arranged side by side. The carriages of the two guide components are connected by a crossbeam, which is fixedly connected to the corresponding main frame.

[0012] The adhesive application assembly includes an adhesive application bracket, an adhesive bucket assembly mounted on the adhesive application bracket, and an adhesive dispensing assembly; the adhesive application bracket is rotatably connected to the first wheel main frame; the adhesive bucket assembly is used to provide adhesive to the adhesive dispensing assembly.

[0013] The glue dispensing assembly includes a glue supply pipe connected to the glue tank assembly, a glue dispensing pipe connected to the glue supply pipe, a glue cylinder frame connected to the glue dispensing pipe and the glue tank assembly respectively, glue scraping rods respectively disposed on both sides of the glue dispensing pipe, and positioning guide wheels respectively disposed on both sides of the length direction of the glue dispensing pipe; the glue dispensing pipe is curved in an arc shape, and the distance between its surface and the glue coating surface gradually decreases from the middle to both sides; the positioning guide wheels are magnetic wheels.

[0014] The rubber sleeve frame is equipped with a telescopic device; the glue application bracket is equipped with a ruler spring at the connection point of the first wheel main frame.

[0015] According to the technical solution of this invention, the weld seam adhesive application device is guided by a guide component, enabling it to move along the weld seam and preventing the adhesive from being applied crookedly. Flexible wheels move in a conforming manner on the travel surface, with the shape of the wheel contact surface changing according to the shape of the travel surface. This allows the entire device to adapt to various shapes of adhesive application surfaces, such as horizontal, convex, and concave surfaces, making it widely applicable. This device achieves automated adhesive application, automatically and evenly applying adhesive to the weld seam without human intervention, reducing labor costs, improving work efficiency, and ensuring consistent coating quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the weld seam adhesive application device according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the wheel structure according to an embodiment of the present invention.

[0018] Figure 3 This is a partial cross-sectional view of the main structure of the wheel according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the guide component according to an embodiment of the present invention.

[0020] Figure 5This is a partial cross-sectional view of the left-side structure of the guide component according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the front view structure of the guide component according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the adhesive coating assembly according to an embodiment of the present invention.

[0023] Figure 8 This is a cross-sectional view of the adhesive coating assembly according to an embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the wheel state when the weld seam adhesive application device of this invention travels on a plane.

[0025] Figure 10 This is a schematic diagram of the wheel state when the weld seam adhesive application device of this invention travels on a convex surface.

[0026] Figure 11 This is a front view schematic diagram of the weld seam adhesive application device of this invention when it travels on a convex surface.

[0027] Figure 12 This is a schematic diagram of the walking state of the weld seam adhesive application device according to an embodiment of the present invention when one side wheel rotates 90°.

[0028] Figure 13 This is a schematic diagram of the weld seam adhesive application device according to an embodiment of the present invention, showing its walking state when one wheel rotates 90°.

[0029] Figure 14 This is a front view schematic diagram of the weld seam adhesive application device of this invention when it travels on a concave surface.

[0030] The meanings of the labels in the attached diagram are as follows: 1-Main frame; 2-Mounting frame; 3-Guide assembly; 4-Wheel shock absorber; 5-Second wheel assembly; 6-First wheel assembly; 7-Glue application assembly; 8-Running surface; 9-Weld; 11-First wheel main frame; 12-Connecting beam; 13-Second wheel main frame; 14-Frame shock absorber; 31-Crossbeam; 32-Slide carriage; 33-Slider; 34-Guide buffer device; 35-Mounting block; 351-Guide rod mounting hole; 36-Guide rod unit; 361-Guide elastic device; 362-Guide rod; 363-Guide wheel; 41-Mounting rod; 42-Shock absorber; 50-Wheel; 51-Wheel spoke; 52-Telescopic rod; 53-Elastic element; 54-Elastic support assembly; 55-First body unit; 56-Second body unit; 71-Glue applicator bracket; 72-Glue bucket assembly; 721-Gear; 722-Rack rack; 723-Glue tube; 724-Squeeze sealing cap; 73-Glue tube frame; 731-Telescopic device; 74-Positioning guide wheel; 75-Glue scraper rod; 76-Glue supply pipe; 761-Sealing joint; 77-Glue outlet pipe. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] like Figures 1 to 14 As shown, the weld seam coating device of this embodiment is mainly used for coating work at weld seam 9 of steel structure bridge, including frame assembly, wheel assembly, guide assembly 3 and coating assembly 7.

[0034] like Figure 1As shown, the frame assembly includes a main frame 1 and four mounting brackets 2 connected to the main frame 1. The main frame 1 includes a first wheel main frame 11, a second wheel main frame 13, and a connecting beam 12 for connecting the first wheel main frame 11 and the second wheel main frame 13. One end of the connecting beam 12 is hinged to the second wheel main frame 13, and the other end is movably connected to the first wheel main frame 11. A frame damping device 14 is also provided on the side of the connecting beam 12 away from the first wheel main frame 11. The frame damping device 14 can be a damping linkage, and both ends of the damping linkage are connected to the first wheel main frame 11 and the connecting beam 12, respectively. A frame damping device 14 is also provided on the first wheel main frame 11. The frame damping device 14 has a basically the same structure as the frame damping device 14 described above, and will not be described again. The mounting brackets 2 are used to mount the corresponding wheels 50 onto the corresponding main frames 1, and the mounting angle between the mounting bracket 2 and the main frame 1 is adjustable. The frame shock absorption device 14 can play a role in shock absorption and buffering, making the operation of the entire device more stable. The connecting beam 12 is movably connected to the first wheel main frame 11, which allows the wheel 50 to meet the requirements of different running surface shapes 8. When the wheel 50 travels on a non-planar surface, the connecting beam 12 moves up and down along the vertical direction of the first wheel main frame 11 to adapt to the running surface requirements of different surface shapes.

[0035] The wheel assembly includes a first wheel assembly 6 and a second wheel assembly 5. The first wheel assembly 6 is connected to the first wheel main frame 11 via a mounting bracket 2, and the second wheel assembly 5 is connected to the second wheel main frame 13 via a mounting bracket 2. Both the first wheel assembly 6 and the second wheel assembly 5 include two wheels 50 located at both ends of their respective wheel main frames. Each wheel 50 is a flexible wheel; when the wheel 50 moves, it forms surface contact with the traveling surface 8, and the shape of the contact surface changes with the shape of the traveling surface 8.

[0036] like Figure 2 and Figure 3 As shown, the wheel 50 includes a hub assembly, a wheel body assembly, and an elastic support assembly 54.

[0037] The wheel hub assembly includes multiple spokes 51, telescopic rods 52 respectively disposed on the spokes 51, and elastic elements 53. Each spoke 51 is a hollow cylindrical structure. The elastic elements 53 are disposed within the spokes 51. One end of each telescopic rod 52 is disposed within the spoke 51 and abuts against the elastic element 53, while the other end is connected to the wheel body assembly. The elastic element 53 can be a spring, which is always in a compressed state. In this embodiment, the number of spokes is specifically six.

[0038] The wheel body assembly includes multiple wheel body units, which are hinged end-to-end to form a circular wheel. The number of wheel body units is three times the number of spokes 51. Every three wheel body units form a unit group, with the middle wheel body unit in each group being the first body unit 55 and the two adjacent wheel body units being the second body units 56. The middle part of the first body unit 55 is connected to the corresponding telescopic rod 52, and the second body unit 56 is connected to the outer shell of the spokes 51 through an elastic support component 54. All wheel body units are electromagnets. In this embodiment, there are 18 wheel body units. The elastic support component 54 can be a spring, with one end connected to the middle of the second body unit 56 and the other end connected to the outer wall of the corresponding spoke 51. The spring is always in a compressed state. When the wheel 50 is not subjected to external force, the telescopic rod 52 is subjected to the elastic force of the elastic element 53, extending outward and pushing the first body unit 55 to its highest point. The second body unit 56, under the elastic force of the elastic support component 54, also extends outward to its highest point, thus making the outline of the wheel 50 circular. When the wheel 50 contacts the running surface 8, due to the influence of gravity and the attraction of the electromagnet, the elastic element 53 in the spoke 51 at the contact surface is compressed under pressure. The wheel body unit at the contact surface of the wheel 50 adheres to the surface of the running surface 8, making it adaptable to different surface shapes for adhesive application, such as flat, convex, and concave running surfaces 8. This device is applicable to all of them. At the same time, the attraction of the electromagnet allows the wheel 50 to adhere to the running surface. Thus, the device can also meet the adhesive application needs of the side and top surfaces, ensuring that the adhesive application device does not fall off when in an inverted position, adapting to adhesive application needs in more different directions.

[0039] like Figure 9 The diagram shows the state of the wheel 50 when the weld seam adhesive application device of this embodiment travels on a flat surface. As can be seen from the diagram, at this time, the contact point between the wheel 50 and the traveling surface 8 is consistent with the traveling surface 8, and is planar. Figure 10 and Figure 11 The diagram shows the state of the wheel 50 when the weld seam adhesive applicator of this embodiment travels on the convex surface. As can be seen from the diagram, at this time, the contact point between the wheel 50 and the traveling surface 8 is consistent with the traveling surface 8, and is convex (radially concave towards the wheel 50). Figure 1 and Figure 14 The figure shows a schematic diagram of the state of the wheel 50 when the weld seam adhesive applicator of this embodiment travels on the concave surface. As can be seen from the figure, at this time, the contact point between the wheel 50 and the traveling surface 8 is consistent with the traveling surface 8, and the wheel 50 is basically circular. Figure 12 and Figure 13This is a schematic diagram of the weld seam adhesive application device in this embodiment, showing its travel state when one wheel rotates 90°. Since the weld seam is located near the edge at this time, the weld seam adhesive application device is limited by the distance between the wheels 50. The wheels 50 on both sides cannot travel on the same travel surface 8 at the same time. In this case, it is only necessary to rotate one wheel 50 so that the wheels 50 on both sides travel on different travel surfaces 8 to achieve the work of applying adhesive to the weld seam near the edge. Moreover, there are no requirements on the angular relationship between the two adjacent surfaces, as long as it is within the rotation angle range of the wheel 50, it can work normally.

[0040] like Figure 1 As shown, the frame assembly also includes four wheel damping devices 4, each disposed at one of the four corresponding wheels 50. Each wheel damping device 4 includes a mounting rod 41 and a shock absorber 42. In this embodiment, one end of the mounting rod 41 is disposed between the mounting frame 2 and the corresponding wheel main frame (first wheel main frame or second wheel main frame), and the other end is connected to the shock absorber 42. One end of the shock absorber 42 is connected to the mounting rod 41, and the other end is connected to the corresponding mounting frame 2. The mounting rod 41 and the shock absorber 42 are both perpendicular to the mounting frame 2. The mounting rod 41 can rotate relative to the corresponding wheel main frame, and the mounting frame 2 can also rotate relative to the corresponding wheel main frame, causing the wheels 50 fixedly connected to it to rotate simultaneously. When the weld 9 requiring adhesive application is near the edge of the plate to be coated, and the distance between the center of the weld 9 and the edge is less than half the width of the weld adhesive application device, if both wheels 50 travel on the plate, the adhesive application assembly 7 will not be able to align with the weld 9. Therefore, the adhesive application device cannot complete the adhesive application by traveling on the plate. In this case, one side of the mounting bracket 2 can be rotated so that the wheel 50 on that side travels on the adjacent side plate of the plate, while the other wheel 50 continues to travel along the plate. This satisfies the adhesive application requirements of the weld 9 at the edge, making the device more widely applicable. The connecting beam 12 of the frame assembly can be fitted onto the mounting rod 41 on the non-rotating side via a collar, achieving a movable connection with the first wheel main frame 11.

[0041] like Figures 4 to 6 As shown, in this embodiment, two guide components 3 form a group, and there are two groups in total, which are respectively disposed on the first wheel main frame 11 and the second wheel main frame 13, and are used to guide the weld seam adhesive application device. The two guide components in each group are spaced apart and arranged side by side.

[0042] The guide assembly includes a carriage 32, a slider 33 disposed on the carriage 32, a mounting block 35 connected to the slider 33, and a guide rod assembly disposed within the mounting block 35.

[0043] The slider 33 is used to drive the mounting block 35 to slide along the slide 32.

[0044] The mounting block 35 has a plurality of guide rod mounting holes 351, which extend from the end of the mounting block 35 away from the slider 33 to the end closer to the slider 33.

[0045] The guide rod assembly includes multiple guide rod units 36. Each guide rod unit 36 ​​includes a guide rod 362, a guide elastic device 361, and a guide wheel 363. One end of the guide elastic device 361 abuts against the guide rod 362, and the other end abuts against the bottom of the guide rod mounting hole 351. The guide wheel 363 is connected to the end of the guide rod 362 away from the guide elastic device 361, and the traveling direction of the guide wheel 363 is consistent with the traveling direction of the wheel 50. A guide buffer device 34 is provided between the mounting block 35 and the slider 33, and the guide wheel 363 is an electromagnet. In this embodiment, both the guide elastic device 361 and the guide buffer device 34 are spring devices.

[0046] The carriages 32 of the two guide components are connected by a crossbeam 31, which is fixedly connected to the corresponding main frame 1.

[0047] In this embodiment, the guide wheel 363 travels in the same direction as the wheel 50, and can only move in this one direction. It cannot move in other directions, thus achieving the guiding function at the weld 9. For example, when the weld 9 is convex, the guide rod 362 at the weld 9 moves into the guide rod mounting hole 351 under pressure. Since the guide wheels 363 on both sides of the weld 9 can only move in one direction, the other guide wheels 363 will travel straight along both sides of the weld 9, achieving the guiding function of the device. The guide buffer device 34 can provide a buffering effect and adapt to different height and distance guiding requirements. In this embodiment, the guiding assembly has multiple guide rods 362 and guide wheels 363 arranged side-by-side, enabling the device to adapt to welds of different widths. Furthermore, the guide rods 362 have a telescopic function, allowing them to adapt to both convex and concave welds.

[0048] like Figure 7 and Figure 8As shown, the adhesive application assembly 7 is mounted on the first wheel main frame 11 and is used to apply adhesive to the weld 9. It includes an adhesive application bracket 71, an adhesive bucket assembly 72 mounted on the adhesive application bracket 71, and an adhesive dispensing assembly. The adhesive application bracket 71 is rotatably connected to the first wheel main frame 11; the adhesive bucket assembly 72 provides adhesive to the adhesive dispensing assembly. To facilitate disassembly and assembly, the adhesive application bracket 71 is connected to the first wheel main frame 11 via two semi-circular bearings. Simultaneously, a spring is installed inside the bearing; when the adhesive application assembly 7 deflects due to factors such as the height of the adhesive application area, the spring helps the adhesive application assembly 7 to return to its original position.

[0049] The glue tank assembly 72 includes a glue tank 723, a squeeze-sealing cap 724 disposed within the glue tank 723, and a drive device connected to the squeeze-sealing cap 724. The drive device includes a gear 722 connected to the squeeze-sealing cap 724, gears 721 respectively disposed on both sides of the gear 722, and a motor (not shown) driven by the gears 721. The motor rotation drives the gears 721 to rotate, which in turn drives the gear 722 to move up and down. When the squeeze-sealing cap 724 squeezes the glue in the glue tank 723, the glue is extruded from the bottom outlet of the glue tank 723, thus achieving the glue supply action. The squeeze-sealing cap 724 of the glue applicator forces the glue in the glue tank 723 into the outlet while simultaneously sealing the glue to prevent leakage.

[0050] The glue dispensing assembly includes a glue supply pipe 76 connected to the glue tank assembly 72, a glue dispensing pipe 77 connected to the glue supply pipe 76, a glue cylinder frame 73 connected to both the glue dispensing pipe 77 and the glue tank assembly 72, glue scraping rods 75 respectively located on both sides of the glue dispensing pipe 77, and positioning guide wheels 74 respectively located on both sides of the length of the glue dispensing pipe 77. The glue dispensing pipe 77 is curved, and the distance between its surface and the glue-coated surface gradually decreases from the middle to both sides. The positioning guide wheels 74 are magnetic wheels. The glue scraping rods 75 are rubber rods, and the glue dispensing pipe 77 is a flexible metal tube that can deform under external force to accommodate welds of different widths. The glue supply pipe 76 is connected to the bottom of the glue cylinder 723 through a sealing joint 761. The glue dispensing pipe 77 has a glue dispensing hole on the side away from the glue cylinder 723, with the largest hole in the middle and the smallest hole at both ends to ensure more uniform glue application. In this embodiment, there are four positioning guide wheels 74, which are evenly distributed on the outer side of the glue cartridge frame 73. The glue bucket assembly 72 is connected to the upper part of the glue cartridge frame 73. The lower part of the glue cartridge frame 73 is connected to both ends of the glue dispensing pipe 77, and the lower part of the glue cartridge frame 73 is provided with a telescopic device 731. The telescopic device 731 can be a telescopic rod and a spring assembly, which allows the glue dispensing assembly to adapt to glue application work on weld seams at different heights. The magnetic positioning guide wheels 74 can cause the glue dispensing assembly to adhere to the glue application area.

[0051] The weld seam adhesive application device also includes a power system and a power supply system. The power system is used to drive the wheel 50 of the first wheel assembly 6 to rotate, and the power supply system is used to supply power to the entire device.

[0052] The working principle of the weld seam adhesive application device in this embodiment is as follows: the device is placed in the work area where adhesive needs to be applied, the power supply system and the power system are turned on, the wheel 50 is attached to the adhesive application work area and drives the device to move along the length of the weld seam 9, the guide component 3 guides the device to avoid deviating from the position of the weld seam 9, and the adhesive application component 7 applies adhesive to the weld seam 9.

[0053] The weld seam adhesive application device of the present invention, because its wheel 50 is an electromagnet, and both the guide assembly 3 and the adhesive application assembly 7 are equipped with electromagnets, can adapt to the adhesive application needs of non-horizontal upward surfaces such as top surfaces and sides, and has a wide range of applications, effectively solving the problem of inconvenience in manual operation. Its wheel 50 is a flexible design, capable of adapting to different work area shapes. Whether it is a flat, convex, or concave surface, this device can be used for adhesive application. After the wheel 50 contacts the work area, the shape of the contact point changes according to the surface shape of the work area. When the wheel 50 causes the main frame 1 to undulate, the connecting beam 12 and the first wheel main frame 11 are movably connected, allowing the entire device to still move in contact with the work area surface. Simultaneously, both the guide assembly 3 and the adhesive application assembly 7 can adapt to different heights, always remaining in contact with the work area surface. The guide assembly 3 allows the device to perform adhesive application along the weld seam 9 without manual operation. Furthermore, when the weld 9 is located at a relatively edge position, the wheel 50 can be rotated at a certain angle by rotating the mounting bracket 2, so that one side of the wheel 50 can travel along the original working area, while the wheel 50 with the rotated angle can travel along its adjacent side wall, thus satisfying the adhesive application work at the edge of the weld 9.

[0054] The weld seam adhesive application device of this invention can automatically apply adhesive to weld seams, saving a significant amount of manpower, improving adhesive application efficiency, adapting to various adhesive application scenarios, and having a wide range of applications. The stability of the adhesive application is also improved, solving the problem of inconvenience in manual operation and ensuring operator safety. Furthermore, the entire device has a relatively simple structure, low manufacturing cost, and broad application prospects.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above embodiments merely illustrate preferred implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A weld seam adhesive application device, characterized in that, include: Frame assembly, wheel assembly, guide assembly, and adhesive coating assembly; The wheel assembly includes a first wheel assembly and a second wheel assembly, which are respectively connected to the frame assembly. Each of the first wheel assembly and the second wheel assembly includes two wheels respectively disposed on the corresponding frame assembly. The wheels are flexible wheels. When the wheels move, the wheels form surface contact with the walking surface. The shape of the contact surface between the wheels and the walking surface changes with the shape of the walking surface. The frame assembly includes a main frame, mounting brackets connected to the main frame, and wheel damping devices. The main frame includes a first wheel main frame and a second wheel main frame. The wheel damping device includes a mounting rod and a shock absorber. One end of the mounting rod is located between the corresponding mounting bracket and the corresponding wheel main frame, and the other end is connected to the shock absorber. The mounting rod and the shock absorber are both perpendicular to the mounting bracket. The mounting rod is rotatable relative to the corresponding wheel main frame. The mounting bracket is used to rotate relative to the corresponding wheel main frame and drive the wheel fixedly connected to it to rotate simultaneously, so that the wheels on the first wheel main frame and the second wheel main frame travel along two adjacent side walls of the part to be coated. The guide assembly is located at the bottom of the frame assembly and is used to guide the weld coating device. The adhesive application assembly is disposed on the frame assembly and is used to apply adhesive to the weld. The adhesive application assembly includes an adhesive dispensing assembly, which includes an adhesive dispensing tube for dispensing adhesive. The adhesive dispensing tube is curved and arc-shaped, and the distance between its surface and the adhesive surface gradually decreases from the middle to both sides.

2. The weld seam adhesive application device according to claim 1, characterized in that: The main frame also includes a connecting beam for connecting the first wheel main frame and the second wheel main frame; the number of mounting brackets is four, used to install the corresponding wheel on the corresponding wheel main frame, and the mounting angle between the mounting bracket and the main frame is adjustable.

3. The weld seam adhesive application device according to claim 2, characterized in that: The wheel includes a hub assembly, a wheel body assembly, and an elastic support assembly; The hub assembly includes multiple spokes, telescopic rods respectively disposed on the spokes, and elastic elements; the spokes are hollow cylindrical structures, the elastic elements are disposed inside the spokes, one end of the telescopic rod is disposed inside the spoke and abuts against the elastic element, and the other end is connected to the wheel body assembly; The wheel body assembly includes multiple wheel body units, which are hinged end to end. The number of wheel body units is three times the number of spokes. Every three wheel body units form a unit group, and the middle wheel body unit in each unit group is the first body unit, and the two wheel body units adjacent to it are the second body units. The first body unit is connected to the corresponding telescopic rod, and the second body unit is connected to the spokes through an elastic support assembly. All wheel body units are electromagnets.

4. The weld seam adhesive application device according to claim 2, characterized in that: One end of the wheel shock absorber is connected to the main frame, and the other end is connected to the outer surface of the mounting bracket.

5. The weld seam adhesive application device according to claim 2, characterized in that: The guide assembly includes a carriage, a slider disposed on the carriage, a mounting block connected to the slider, and a guide rod assembly disposed on the mounting block; The slider is used to drive the mounting block to slide along the slide frame; The mounting block has multiple guide rod mounting holes, which extend from the end of the mounting block away from the slider to the end closer to the slider. The guide rod assembly includes multiple guide rod units, each guide rod unit including a guide rod, a guide elastic device, and a guide wheel; one end of the guide elastic device abuts against the guide rod, and the other end abuts against the bottom of the guide rod mounting hole; the travel direction of the guide wheel is consistent with the travel direction of the wheel.

6. The weld seam adhesive application device according to claim 5, characterized in that: A guide buffer device is provided between the mounting block and the slider, and the guide wheel is an electromagnet.

7. The weld seam adhesive application device according to claim 5 or 6, characterized in that: Two guide components are grouped together, and there are two groups in total. The two groups of guide components are respectively disposed on the first wheel main frame and the second wheel main frame. The two guide components in each group are spaced apart and arranged side by side. The carriages of the two guide components are connected by a crossbeam, and the crossbeam is fixedly connected to the corresponding main frame.

8. The weld seam adhesive application device according to claim 2, characterized in that: The adhesive application assembly further includes an adhesive application bracket and an adhesive bucket assembly disposed on the adhesive application bracket, and the adhesive dispensing assembly is also disposed on the adhesive application bracket; the adhesive application bracket is rotatably connected to the first wheel main frame; the adhesive bucket assembly is used to provide adhesive to the adhesive dispensing assembly.

9. The weld seam adhesive application device according to claim 8, characterized in that: The glue dispensing assembly further includes a glue supply pipe connected to the glue tank assembly, a glue cylinder frame connected to the glue dispensing pipe and the glue tank assembly respectively, glue scraping rods respectively disposed on both sides of the glue dispensing pipe, and positioning guide wheels respectively disposed on both sides of the glue dispensing pipe along its length; the positioning guide wheels are magnetic wheels; the glue dispensing pipe is connected to the glue supply pipe.

10. The weld seam adhesive application device according to claim 9, characterized in that: The rubber sleeve frame is equipped with a telescopic device; the glue application bracket is equipped with a ruler spring at the connection point of the first wheel main frame.

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