Spraying device for coating

Abstract

The utility model discloses a spraying device for coating, which belongs to the technical field of spraying equipment and comprises a base, a manipulator, a wire fixing mechanism and a spray gun connecting tool. The base comprises a base, and a filling cavity is formed in the base; a universal fixing plate is detachably arranged on the base; the manipulator is fixedly connected with the universal fixing plate; the spray gun connecting tool is fixedly mounted at the execution end of the manipulator; the wire rod fixing mechanism comprises a wire rod disc, a mounting shaft is arranged on the mechanical arm, and the wire rod disc is rotationally arranged on the mounting shaft. The filling cavity of the spraying device can be filled with filler with high density, so that the gravity center of the base is lowered; when the device needs to be moved, the filler can be taken out, the weight of the base is reduced, and transferring is convenient; the universal fixing plate is connected with the manipulator, so that the universality of the base can be ensured; for different manipulators, the universal fixing plate can be replaced. The spraying device is high in universality and convenient to transfer and use.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and specifically to a spraying device for coating. Background Technology

[0002] Power generation equipment operates outdoors for extended periods, exposed to harsh environments such as wind, sand, rain, and snow. To ensure its normal service life, surface corrosion protection is crucial. Therefore, power generation equipment generally requires the application of anti-corrosion coatings.

[0003] With the development of technology, robotic arms are becoming increasingly automated and precise. Currently, with the rising market demand for parts coating, most manufacturers are using robotic arms for automated coating to effectively ensure coating quality and reduce labor costs. Furthermore, the film thickness produced by robotic arms is more stable and more precisely controlled than that produced by manual coating.

[0004] Although robotic arm painting is common, there is a lack of equipment to match robotic arm painting. Spraying equipment needs to be customized, which means that many tools and fixtures used for painting need to be designed and optimized separately, resulting in a large workload, high production costs, and poor versatility. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a coating spraying device that is versatile, has low operating costs, and is easy to transfer and use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a coating spraying device, including a base, a robotic arm, a wire fixing mechanism, and a spray gun connecting fixture;

[0008] The base includes a base with a filling cavity inside; a universal fixing plate is detachably provided on the base;

[0009] The robotic arm is fixedly connected to the universal fixing plate;

[0010] The spray gun connecting fixture is fixedly installed on the actuator end of the robot arm;

[0011] The wire fixing mechanism includes a wire reel, and the robotic arm is provided with an installation shaft, on which the wire reel is rotatably mounted.

[0012] In the above-mentioned coating spraying device, the base includes a bottom plate, a side plate and a top plate; the side plate is annular and forms the filling cavity inside it; the bottom plate seals the lower end of the filling cavity, and the top plate is located at the upper end of the filling cavity and connects the universal fixing plate and the side plate.

[0013] In the above-mentioned coating spraying device, the base further includes a plurality of reinforcing plates, the reinforcing plates being connected to at least two of the side plates, the bottom plate, and the top plate; the plurality of reinforcing plates are distributed circumferentially in the filling cavity;

[0014] And / or, the base is provided with lifting holes;

[0015] And / or, the base plate is provided with anchor bolt through holes;

[0016] And / or, the top plate has a plurality of lower connecting grooves on its peripheral side, the lower connecting grooves penetrating the upper and lower sides of the top plate; the universal fixing plate has a plurality of upper connecting grooves on its peripheral side, the upper connecting grooves penetrating the upper and lower sides of the universal fixing plate; the lower connecting grooves and the upper connecting grooves are positioned correspondingly, and the universal fixing plate and the top plate are detachably connected by connectors located in the lower connecting grooves and the upper connecting grooves;

[0017] And / or, the filling cavity is filled with a filler, which is a lead block or a copper block.

[0018] In the above-mentioned coating spraying device, the general-purpose fixing plate is provided with a plurality of connection holes for connecting the robot arm; the connection holes are elongated holes.

[0019] In the above-mentioned coating spraying device, the connecting hole is an arc-shaped hole, and a plurality of the connecting holes are spaced apart on a circumference with the center of the universal fixing plate as the center.

[0020] In the above-mentioned coating spraying device, the wire fixing mechanism includes a bearing sleeve, a damping cap, and an insulating cover; the damping cap is fixed to the end of the mounting shaft and limits the wire reel; the insulating cover is fixed to the robotic arm or the wire reel and limits the wire on the wire reel; the bearing sleeve is located between the wire reel and the mounting shaft.

[0021] In the above-mentioned coating spraying device, the bearing sleeve is made of polytetrafluoroethylene material;

[0022] And / or, the damping cap includes a connecting cover body, the connecting cover body having a protruding abutment platform and a limiting post on the side facing the wire reel, the abutment platform abutting against the wire reel; one end of the limiting post extends to the bearing sleeve and abuts against the end face of the bearing sleeve.

[0023] And / or, the damping cover is made of polytetrafluoroethylene.

[0024] In the above-mentioned coating spraying device, the spray gun connecting fixture includes a first connecting component, a connecting component, and a second connecting component. The first connecting component and the second connecting component are connected as one unit through the connecting component. The first connecting component is used to connect the robot arm, and the second connecting component is used to connect the spray gun.

[0025] In the above-mentioned coating spraying device, the first connecting assembly includes a first connecting plate and a second connecting plate that are fixedly connected as one unit. The first connecting plate is connected to the robot arm, and the lower side of the second connecting plate is provided with a slot.

[0026] The connecting component includes a snap-fit ​​body and a connecting frame. The snap-fit ​​body snaps into and is fixed to the slot. One end of the connecting frame is fixedly connected to the snap-fit ​​body, and the other end is fixedly connected to the spray gun base of the second connecting component.

[0027] In the above-mentioned coating spraying device, the spray gun holder is provided with a rigid connecting support, which is a cylindrical shape with open ends; one end of the rigid connecting support is connected to the spray gun holder, and the other end is fixedly installed with a centering and fixing ring.

[0028] The beneficial effects of this utility model are as follows:

[0029] The coating spraying device of this application is mobile, applicable to special disclosures, and has good versatility; it operates stably during the coating process, and the coating film thickness is more stable and the film thickness control is more precise than that of manual coating.

[0030] The base has a filling cavity, which can be filled with a denser filler when needed to lower the center of gravity of the base. When the device needs to be moved, the filler can be removed to reduce the weight of the base and facilitate transfer. Due to the presence of the filler, the base has good stability, is suitable for different operating environments, has a wide range of applications, is applicable to various complex and harsh working conditions, and has strong versatility. It greatly increases the convenience of using the device, eliminates the need for a foundation or pre-embedded iron, and ensures smooth operation of the robotic arm.

[0031] The universal mounting plate connects to the robot arm, ensuring the base's versatility. The universal mounting plate can be replaced for different robots. It has a simple structure, is easy to manufacture, and is compatible with the installation of robots on the market.

[0032] The spray gun holder is equipped with a rigid connection support, which can stably hold the extended spray gun; when using the extended spray gun to spray the coating of deep cavity structures, the operation is stable and the film thickness is uniform.

[0033] The reinforcing plates increase the connection strength between the various plates on the base, resulting in higher base reliability. The installation of lifting holes and anchor bolt through holes makes the spraying device more convenient to use and expands its applicability. The universal fixing plate and top plate are easy to assemble and disassemble, facilitating the removal and placement of filler material in the filling cavity. The higher the filler density, the lower the overall center of gravity of the base, and the better its stability.

[0034] The connecting holes on the universal mounting plate are elongated, allowing the robot's mounting position to be adjusted within a certain range, thus offering high versatility. The arc-shaped holes spaced at intervals along the circumference further adapt to existing robot mounting structures.

[0035] The wire fixing mechanism is directly mounted on the robotic arm and fixed to its housing, offering high integration and facilitating the transfer and adjustment of the spraying device. The mechanism is simple in design and rationally structured, ensuring stable wire feeding and preventing the wire reel from winding back due to inertia. The wire reel does not need to be placed on the ground but is directly mounted on the robotic arm, reducing the dragging of the wire tube and improving both aesthetics and safety. The bearing sleeves and damping caps are made of PTFE, providing self-lubrication and ensuring stable and controllable operation of the wire reel. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the coating spraying device of this utility model;

[0037] Figure 2 This is a top view of the base;

[0038] Figure 3 for Figure 2 Sectional view of section AA;

[0039] Figure 4 This is a schematic diagram of the three-dimensional structure of the base;

[0040] Figure 5 This is a schematic diagram of the wire fixing mechanism;

[0041] Figure 6 for Figure 5 Sectional view of section DD;

[0042] Figure 7 A first-person view structural diagram of the spray gun connection fixture;

[0043] Figure 8 This is a structural schematic diagram from a second-view perspective of the spray gun connection fixture.

[0044] In the picture:

[0045] 100 - Base; 110 - Universal fixing plate; 111 - Connecting hole; 112 - Upper connecting groove; 120 - Base; 121 - Bottom plate; 122 - Side plate; 123 - Reinforcing plate; 124 - Filling cavity; 125 - Top plate; 126 - Lifting hole; 127 - Anchor bolt through hole; 128 - Lower connecting groove;

[0046] 200-robotic arm;

[0047] 300 - Wire fixing mechanism; 310 - Wire reel; 320 - Damping cover; 321 - Connecting cover; 322 - Limiting post; 323 - Abutment platform; 330 - Insulating cover; 340 - Bearing sleeve; 350 - Mounting shaft; 360 - Mounting plate;

[0048] 400-Spray gun connection fixture; 410-First connection assembly; 411-First connection plate; 412-Second connection plate; 413-Connecting shaft; 420-Connecting assembly; 421-Snap-fit ​​body; 422-Connecting frame; 430-Second connection assembly; 431-Spray gun holder; 432-Rigid connection support; 433-Centering and fixing ring;

[0049] 500-Spray gun. Detailed Implementation

[0050] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0051] Please refer to Figure 1 This invention provides an embodiment of a coating spraying device, comprising a base 100, a robotic arm 200, a wire fixing mechanism 300, and a spray gun connecting fixture 400. The robotic arm 200 is detachably fixed to the base 100, and the wire fixing mechanism 300 and the spray gun connecting fixture 400 are fixedly mounted on the robotic arm 200. The base 100 is designed to be portable, easy to move, and convenient to use. The robotic arm 200 can be an existing four-axis, five-axis, or six-axis robotic arm, preferably a six-axis robotic arm. The spray gun connecting fixture 400 allows any desired spray gun 500 to be mounted on the robotic arm 200, while the wire fixing mechanism 300 is fixed to the robotic arm 200, without affecting the device's movement. Therefore, the spraying device is suitable for harsh environments and complex structural conditions. The robotic arm 200 has a fast response speed, stable operation, and accurate film thickness control, effectively reducing rework time caused by uneven film thickness compared to manual labor.

[0052] Specifically, such as Figure 1-4 As shown, the base 100 includes a base 120 and a universal fixing plate 110. The universal fixing plate 110 is used to cooperate, connect and fix with the robot arm 200. The base 120 is supported on the lower side of the universal fixing plate 110, and the two are fixedly connected to maintain the stability of the device during operation.

[0053] The base 120 includes a bottom plate 121, side plates 122, and a top plate 125. The side plate 122 is annular, forming a filling cavity 124 inside. The bottom plate 121 seals the lower end of the filling cavity 124, and the top plate 125 is located at the upper end of the filling cavity 124. The side plate 122 can be assembled and fixed by multiple plates. For example, the side plate 122 is welded from four plates, which form the four sides of the filling cavity 124. The side plate 122 can also be a one-piece structure. The upper and lower ends of the side plate 122 are fixedly connected to the top plate 125 and the bottom plate 121, respectively, for example, by welding. The top plate 125 is annular, opening around the upper end of the filling cavity 124.

[0054] The base 120 also includes several reinforcing plates 123, which are used to strengthen the connection between the side plates 122, the bottom plate 121, and the top plate 125. Preferably, the reinforcing plates 123 connect the side plates 122, the bottom plate 121, and the top plate 125 simultaneously. The several reinforcing plates 123 are distributed circumferentially in the filling cavity 124. The base 120 is also machined with lifting holes 126, preferably four in number, distributed at the four corners of the base 120. Exemplarily, the lifting holes 126 are provided on the reinforcing plates 123, and the four lifting holes 126 are located on opposite sides of the filling cavity 124.

[0055] The universal fixing plate 110 and the top plate 125 are detachably connected via bolts or other connectors. Preferably, the top plate 125 has several lower connecting grooves 128 on its peripheral side, which penetrate the upper and lower sides of the top plate 125; the universal fixing plate 110 has several upper connecting grooves 112 on its peripheral side, which penetrate the upper and lower sides of the universal fixing plate 110. The lower connecting grooves 128 and upper connecting grooves 112 are positioned correspondingly, and the side openings facilitate the disassembly of the bolt and nut assembly.

[0056] The base plate 121 has anchor bolt holes 127 machined on it, so it can be directly fixed to the ground without the need to build a foundation for pre-embedded iron.

[0057] The filling cavity 124 of the base 100 can be filled with a high-density filler to lower the center of gravity of the base 100, thus making it suitable for installation in various environments. It has a small footprint, is flexible in movement, and is not limited by space. The filler can be a material with a density higher than iron, such as lead or copper blocks.

[0058] The universal mounting plate 110 has several connecting holes 111 for connecting the robot arm 200. Preferably, the connecting holes 111 are elongated holes, allowing adjustment of the robot arm 200's installation position within a certain range. Exemplarily, the connecting holes 111 are arc-shaped holes, particularly circular arc-shaped holes. Several connecting holes 111 are spaced apart on a circumference centered on the center of the universal mounting plate 110. The robot arm 200 mounted on the universal mounting plate 110 can rotate appropriately, increasing its versatility. Most robots 200 used for painting can be fixedly connected using the universal mounting plate 110, offering extremely high versatility.

[0059] like Figure 5 and Figure 6 The wire fixing mechanism 300 is used to install the wire required for spraying, and includes a wire reel 310, a bearing sleeve 340, a damping cap 320, and an insulating cover 330; the wire is wound on the wire reel 310, and the wire is not shown in the figure. The wire is energized during use, so it must be insulated.

[0060] To accommodate the installation of the wire fixing mechanism 300, two threaded bosses are pre-installed on the robot arm 200. These threaded bosses can be directly machined from the robot arm 200's housing, or they can be welded to the housing. Each threaded boss has threaded holes, which are used to fix the mounting plate 360 ​​to the robot arm 200. The mounting plate 360 ​​is fixedly connected to the mounting shaft 350. The wire fixing mechanism 300 is mounted on the mounting shaft 350. Both the mounting shaft 350 and the mounting plate 360 ​​are made of insulating nylon to prevent the wire from conducting electricity to the robot arm 200 and affecting it.

[0061] The wire reel 310 is rotatably mounted on the mounting shaft 350 and is limited by a damping cap 320 fixed to the end of the mounting shaft 350. Preferably, a bearing sleeve 340 is provided between the wire reel 310 and the mounting shaft 350. The bearing sleeve 340 is made of polytetrafluoroethylene (PTFE), which has good self-lubricating properties and stable chemical properties.

[0062] The damping cap 320 is fixed to the end face of the mounting shaft 350 away from the robot arm 200 by bolts, screws, or other locking devices, and abuts against the wire reel 310 and the bearing sleeve 340. Preferably, the damping cap 320 includes a connecting cover 321, which is connected to the mounting shaft 350; the connecting cover 321 has a protruding abutment platform 323 on its side facing the wire reel 310, and the abutment platform 323 abuts against the wire reel 310; the abutment platform 323 can be annular or distributed in multiple dots.

[0063] The connecting cover 321 is also provided with a limiting post 322, the position of which corresponds to the end face of the bearing sleeve 340. One end of the limiting post 322 extends to the bearing sleeve 340 and abuts against the end face of the bearing sleeve 340. The two ends of the bearing sleeve 340 are respectively limited by the mounting shaft 350 and the limiting post 322. Preferably, the limiting post 322 is threadedly connected to the connecting cover 321, and the two are assembled into one piece after being processed separately.

[0064] The insulating cover 330 is fixed to the mounting plate 360 ​​or directly to the wire reel 310, covering a portion of the outer side of the wire reel 310. During use, the wire is pulled by the wire feeder at the front of the robotic arm 200, and then the wire reel 310 rotates. The insulating cover 330 limits the wire on the wire reel 310, preventing it from loosening or coming off during rotation. The damping cap 320, also made of PTFE, is used to press the wire reel 310 firmly and adjust its rotation speed, preventing the wire reel 310 from rewinding due to inertia at high speeds.

[0065] like Figure 7 and Figure 8 As shown, the spray gun connecting fixture 400 includes a first connecting component 410, a connecting component 420, and a second connecting component 430. The first connecting component 410 is used to connect the actuator of the robot arm 200, and the second connecting component 430 is used to connect the spray gun 500. The first connecting component 410 and the second connecting component 430 are connected as one unit through the connecting component 420.

[0066] The first connecting assembly 410 includes a first connecting plate 411 and a second connecting plate 412, which are arranged vertically and fixedly connected as a whole by a connecting shaft 413. The first connecting plate 411 has connecting holes machined on it, the position and size of which match the robot arm 200. The lower side of the second connecting plate 412 has a slot, which can be a T-shaped slot.

[0067] The connecting component 420 includes a snap-fit ​​body 421 and a connecting frame 422. The snap-fit ​​body 421 snaps into and is fixed to the card slot; the connecting frame 422 is fixedly connected to the snap-fit ​​body 421.

[0068] The second connecting assembly 430 includes at least a spray gun holder 431, which is fixed to the connecting frame 422; the spray gun 500 is mounted on the spray gun holder 431.

[0069] Furthermore, the spray gun holder 431 is provided with a rigid connection support 432, which is a cylindrical shape with open ends; one end of the rigid connection support 432 is connected to the spray gun holder 431, and the other end is fixedly installed with a centering and fixing ring 433, which is composed of two clamping petals. One end of the clamping petal is fixedly connected to the end face of the rigid connection support 432, and the two clamping petals are locked or opened under the action of bolts.

[0070] The spray gun connecting fixture 400 is specifically designed for the structure of the robotic arm 200. The spray gun 500 is fixed on the spray gun connecting fixture 400, making it extremely convenient to use and ensuring the equipment's versatility and ease of storage. The rigid connection support 432 is used to fix spray guns with special spraying structures, such as omnidirectional spray guns, extended spray guns, and extra-long spray guns. The spray gun 500 is mounted on the spray gun holder 431, and the spray gun tube is then centered and fixedly connected by the centering and fixing ring 433. This prevents the spray gun 500 from experiencing uneven film thickness due to the up-and-down movement of the spray tube during the robotic arm 200's movement and spraying process. The centering and fixing ring 433 can fix spray tubes of different sizes from Φ15 to Φ40, offering a wide range of applications and strong versatility, and is widely used on various common spray guns.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coating spraying device, characterized in that, Includes a base (100), a robotic arm (200), a wire fixing mechanism (300), and a spray gun connection fixture (400); The base (100) includes a base (120) with a filling cavity (124) inside; a universal fixing plate (110) is detachably provided on the base (120). The robotic arm (200) is fixedly connected to the universal fixing plate (110); The spray gun connecting fixture (400) is fixedly installed on the execution end of the robot (200); The wire fixing mechanism (300) includes a wire reel (310), and the robot (200) is provided with an installation shaft (350). The wire reel (310) is rotatably mounted on the installation shaft (350).

2. The coating spraying device according to claim 1, characterized in that, The base (120) includes a bottom plate (121), a side plate (122) and a top plate (125); the side plate (122) is annular and forms the filling cavity (124) inside it; the bottom plate (121) seals the lower end of the filling cavity (124), and the top plate (125) is located at the upper end of the filling cavity (124) and connects the universal fixing plate (110) and the side plate (122).

3. A coating spraying apparatus according to claim 2, characterized in that, The base (120) also includes a plurality of reinforcing plates (123), the reinforcing plates (123) being connected to at least two of the side plates (122), the bottom plate (121), and the top plate (125); the plurality of reinforcing plates (123) are distributed circumferentially in the filling cavity (124); And / or, the base (120) is provided with a lifting hole (126); And / or, the base plate (121) is provided with anchor bolt through holes (127); And / or, the top plate (125) has a plurality of lower connecting grooves (128) on its peripheral side, the lower connecting grooves (128) penetrating the upper and lower sides of the top plate (125); the universal fixing plate (110) has a plurality of upper connecting grooves (112) on its peripheral side, the upper connecting grooves (112) penetrating the upper and lower sides of the universal fixing plate (110); the lower connecting grooves (128) and the upper connecting grooves (112) are positioned correspondingly, and the universal fixing plate (110) and the top plate (125) are detachably connected by connectors located in the lower connecting grooves (128) and the upper connecting grooves (112); And / or, the filling cavity (124) is filled with a filler, which is a lead block or a copper block.

4. A coating spraying apparatus according to claim 1, characterized in that, The universal fixing plate (110) is provided with a number of connection holes (111) for connecting the robot (200); the connection holes (111) are elongated holes.

5. A coating spraying apparatus according to claim 4, characterized in that, The connecting hole (111) is an arc-shaped hole, and several connecting holes (111) are spaced apart on a circumference with the center of the universal fixing plate (110) as the center.

6. A coating spraying apparatus according to claim 1, characterized in that, The wire fixing mechanism (300) includes a bearing sleeve (340), a damping cap (320), and an insulating cover (330); the damping cap (320) is fixed to the end of the mounting shaft (350) and limits the wire reel (310); the insulating cover (330) is fixed to the robot (200) or the wire reel (310) and limits the wire on the wire reel (310); the bearing sleeve (340) is located between the wire reel (310) and the mounting shaft (350).

7. A coating spraying apparatus according to claim 6, characterized in that, The bearing sleeve (340) is made of polytetrafluoroethylene material; And / or, the damping cap (320) includes a connecting cover (321), the connecting cover (321) having a protruding abutment platform (323) and a limiting post (322) on the side facing the wire reel (310), the abutment platform (323) abutting against the wire reel (310); one end of the limiting post (322) extends to the bearing sleeve (340) and abuts against the end face of the bearing sleeve (340); And / or, the damping cap (320) is made of polytetrafluoroethylene.

8. A coating spraying apparatus according to claim 1, characterized in that, The spray gun connecting fixture (400) includes a first connecting component (410), a connecting component (420), and a second connecting component (430). The first connecting component (410) and the second connecting component (430) are connected as one unit through the connecting component (420). The first connecting component (410) is used to connect the robot (200), and the second connecting component (430) is used to connect the spray gun (500).

9. A coating spraying apparatus according to claim 8, characterized in that, The first connecting component (410) includes a first connecting plate (411) and a second connecting plate (412) that are fixedly connected as one unit. The first connecting plate (411) is connected to the robot (200), and the lower side of the second connecting plate (412) is provided with a slot. The connecting component (420) includes a snap-fit ​​body (421) and a connecting frame (422). The snap-fit ​​body (421) snaps into and is fixed to the slot. One end of the connecting frame (422) is fixedly connected to the snap-fit ​​body (421), and the other end is fixedly connected to the spray gun seat (431) of the second connecting component (430).

10. A coating spraying apparatus according to claim 9, characterized in that, The spray gun holder (431) is provided with a rigid connection support (432), which is a cylindrical shape with open ends; one end of the rigid connection support (432) is connected to the spray gun holder (431), and the other end is fixedly installed with a centering ring (433).

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