Paint make-up device

Abstract

The invention provides a paint make-up device, and belongs to the technical field of mechanical equipment. The paint make-up device comprises a moving table, a paint make-up assembly and a positioning assembly, and the moving table is used for being connected with mechanical equipment and can move on the outer surface of the mechanical equipment; the paint make-up assembly is connected with the moving table and can swing relative to the moving table, the paint make-up assembly is used for conducting paint make-up on a target position according to the damage state of the target position, and the target position is located on the outer surface of the mechanical equipment; the positioning assembly is connected with the moving table and the paint repairing assembly. The positioning assembly is used for detecting the outer surface of the mechanical equipment so as to determine the target position. According to the invention, automatic paint make-up can be carried out, automation efficiency is improved, and labor cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment, and in particular relates to a paint touch-up device. Background Art

[0002] During operation, mechanical equipment will inevitably experience local collisions, corrosion and paint peeling. If the mechanical equipment is not repainted in time, the speed of erosion of the outer surface will be accelerated, and ultimately affect its own reliability and operational safety.

[0003] In the related art, the outer surface of mechanical equipment is mainly touched up by manual touch-up. Manual touch-up not only increases the maintenance cost, but also poses certain safety hazards when touching up mechanical equipment for high-altitude operations. In addition, manual touch-up is difficult to ensure the consistency of coating quality, and the repair speed is also low. Summary of the invention

[0004] The embodiment of the present disclosure provides a paint touch-up device, which can improve the paint repair speed and reduce the cost. The technical solution is as follows:

[0005] An embodiment of the present disclosure provides a paint touch-up device, which includes a moving platform, a paint touch-up component and a positioning component. The moving platform is used to be connected to a mechanical device and can move on the outer surface of the mechanical device; the paint touch-up component is connected to the moving platform and can swing relative to the moving platform, and the paint touch-up component is used to touch up a target position according to the damaged state of the paint film at the target position, and the target position is located on the outer surface of the mechanical device; the positioning component is connected to the moving platform, and the positioning component is used to detect the outer surface of the mechanical device to determine the target position and judge the damaged state of the paint film at the target position.

[0006] In another implementation of the present disclosure, the mobile platform includes a platform, a plurality of walking wheels and a walking drive component, the plurality of walking wheels are distributed at intervals on one side of the platform, and are respectively connected to the platform for rotation, the rotation axes of the plurality of walking wheels are parallel to each other, and the length direction of the rotation axis is perpendicular to the moving direction of the platform, and the walking wheels can be adsorbed on the outer surface of the mechanical equipment; the walking drive component is connected to the plurality of walking wheels and to the platform, and the walking drive component is used to drive the walking wheels to rotate.

[0007] In another implementation of the present disclosure, the positioning assembly includes a scanning unit, a joint bearing and a rotating arm, the scanning unit is movably connected to one end of the rotating arm through the joint bearing, the other end of the rotating arm is rotatably connected to the mobile platform, and the scanning unit is used to detect the outer surface of the mechanical equipment to determine the target position.

[0008] In another implementation of the present disclosure, the scanning unit includes a scanner and a remote sensing sensor; the scanner is used to scan the outer surface of the mechanical equipment to determine whether repainting is needed, and the remote sensing sensor is used to detect the outer surface of the mechanical equipment to determine the target position.

[0009] In another implementation of the present disclosure, the paint touch-up device also includes a controller, which is electrically connected to the positioning component, the mobile platform and the paint touch-up component, respectively; the controller is used to control the positioning component to scan the outer surface of the mechanical equipment to determine the target position through the positioning component, and control the mobile platform to move to the target position after the positioning component determines the target position, and control the paint touch-up component to touch up the target position after the mobile platform moves to the target position.

[0010] In another embodiment of the present disclosure, the paint touch-up assembly includes a main paint spray pipeline, a paint bucket and at least one paint spray branch pipeline, the two ends of the main paint spray pipeline are respectively connected to the paint spray branch pipeline and the paint bucket, and the end of the paint spray branch pipeline away from the main paint spray pipeline is a paint spray end, the paint spray end can be rotated relative to the mobile platform to change the paint spray angle, and the paint bucket is connected to the mobile platform; the paint spray branch pipeline is electrically connected to the controller so as to control the paint flow rate and paint spray angle of the paint spray branch pipeline through the controller.

[0011] In another implementation of the present disclosure, the paint branch pipeline includes a nozzle, a branch pipe section and a proportional valve. The two ends of the branch pipe section are respectively connected to the main paint pipeline and the nozzle. The nozzle is the paint end of the paint branch pipeline. The proportional valve is connected to the middle part of the branch pipe section to control the flow area of ​​the branch pipe section.

[0012] In yet another implementation of the present disclosure, there are two branch paint pipelines; the spray heads in the two branch paint pipelines protrude out of opposite sides of the moving platform respectively.

[0013] In another implementation of the present disclosure, the mobile platform further includes a clamping member and a clamping driving member, wherein the clamping member is connected to the platform; the clamping driving member is respectively connected to the platform and the clamping member, and the clamping driving member is used to control the clamping member to clamp the mechanical equipment after the mobile platform moves to the target position.

[0014] In another implementation of the present disclosure, the clamping member includes two clamp half rings and an elastic member, the two clamp half rings are hinged to each other at one end along the arc length direction, the other ends of the two clamp half rings are spaced from each other to form a gap, the elastic member is located in the gap, and the two ends of the elastic member are respectively connected to the other ends of the two clamp half rings; the clamping drive member is connected to the two clamp half rings, and is used to control the two clamp half rings to approach or move away from each other.

[0015] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0016] Since the positioning component is used to detect the outer surface of the mechanical equipment to determine the target position, when repainting the outer surface of the mechanical equipment, the outer surface of the mechanical equipment can be detected by the positioning component first, so that the target position that needs to be repainted can be determined. In addition, since the mobile station can move on the outer surface of the mechanical equipment, the mobile station can be controlled to move freely on the outer surface of the mechanical equipment, so that the repainting device can quickly move to the target position when repainting. Moreover, the positioning component can determine the damage state of the paint film at the target position, so that the damage state of the paint film at the target position can be determined, and then the repainting component can automatically repaint the target position according to the damage state of the paint film at the target position, so that the paint film after repainting is consistent with the previous undamaged state, thereby ensuring the consistency of the spray paint quality.

[0017] It can be seen that the paint touch-up device provided in the embodiment of the present disclosure can pre-determine the target position of the paint touch-up through the positioning component, and determine the damage state of the paint film at the target position. Then the paint touch-up device is moved to the target position through the moving platform, and then the paint touch-up component automatically touches up the target position, which greatly improves the operating efficiency and repair speed, while reducing labor costs. Moreover, since the paint touch-up component can automatically touch up the paint throughout the process according to the damage state of the paint film at the target position, the consistency of the paint spraying quality can be guaranteed and the coating effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the connection between the paint touch-up device and mechanical equipment provided in an embodiment of the present disclosure;

[0020] Figure 2 A schematic structural diagram of a paint touch-up device provided in an embodiment of the present disclosure.

[0021] The symbols in the figure mean the following:

[0022] 1. Mobile platform; 10. Platform; 11. Travel wheel; 12. Travel driving member; 13. Clamping member; 131. Clamp half ring; 132. Elastic member; 1310. Notch; 14. Clamping driving member; 141. Air pump; 142. Air cylinder;

[0023] 3. Paint touch-up components; 31. Main spray paint pipeline; 311. Main pipe section; 312. Switch valve; 33. Paint bucket; 34. Spray paint branch pipeline; 341. Spray nozzle; 343. Branch pipe section; 344. Proportional valve;

[0024] 4. Positioning assembly; 41. Scanning unit; 411. Scanner; 412. Remote sensing sensor; 42. Joint bearing; 43. Rotating arm; 431. Connecting shaft; 432. Rotating shaft;

[0025] 5. Controller. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0027] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", "top", "bottom" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] During operation, mechanical equipment will inevitably experience local collisions, corrosion and paint peeling. If the mechanical equipment is not repainted in time, the speed of erosion of the outer surface will be accelerated, and ultimately affect its own reliability and operational safety.

[0029] As the main equipment for lifting and transporting goods at ports and at sea, boom cranes are frequently exposed to heavy objects, sea breeze, salt spray and other environments during work, which may cause local collisions, corrosion and paint peeling, which will accelerate the erosion of the outer surface of the boom in the crane. If the eroded part of the boom is not repainted in time, the boom will rust greatly, and eventually affect the reliability of the boom and the safety of the operation. Therefore, keeping the outer surface coating of the boom in good condition is crucial to extend the service life of the boom.

[0030] Existing methods of repainting mainly rely on manual operation, which increases maintenance costs and reduces repair speed. Moreover, since manual repainting requires downtime, it is simply impractical for cranes that require quick response to reduce downtime. Furthermore, traditional manual repainting methods are not only inefficient, but also difficult to ensure the consistency of coating quality and have safety hazards. To this end, the present disclosure proposes a repainting device that can automatically repaint the outer surface of the boom in a boom-type crane.

[0031] Figure 1 A schematic diagram of the connection between the paint touch-up device and the mechanical equipment provided in the embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the mechanical equipment described in the embodiment of the present disclosure is a boom crane. The paint touch-up device provided in the embodiment of the present disclosure automatically touches up the outer surface of the steel pipe in the boom crane. The embodiment of the present disclosure only takes the boom crane as an example to illustrate the structure and use process of the paint touch-up device provided in the embodiment of the present disclosure. The paint touch-up device provided in the embodiment of the present disclosure is not only for touch-up of the boom crane, but also can automatically touch up other mechanical equipment that needs to be touched up.

[0032] Figure 2 A schematic diagram of the structure of the paint touch-up device provided in the embodiment of the present disclosure, combined with Figure 2 The paint touch-up device includes a moving platform 1, a paint touch-up component 3 and a positioning component 4.

[0033] The paint touch-up component 3 is connected to the mobile platform 1 and can swing relative to the mobile platform 1. The paint touch-up component 3 is used to touch up the target position according to the damage state of the target position so that the paint film thickness after touch-up is the same as the paint film thickness of the undamaged position. The target position is located on the outer surface of the mechanical equipment.

[0034] The positioning component 4 is connected to the moving platform 1 and the paint touch-up component 3 respectively. The positioning component 4 is used to detect the outer surface of the mechanical equipment to determine the target position and judge the damage state of the paint surface at the target position.

[0035] Since the positioning component 4 is used to detect the outer surface of the mechanical equipment to determine the target position, when the outer surface of the mechanical equipment is repainted, the outer surface of the mechanical equipment can be detected by the positioning component 4 first, so that the target position that needs to be repainted can be determined. In addition, since the mobile platform 1 can move on the outer surface of the mechanical equipment, the mobile platform 1 can be controlled to move freely on the outer surface of the mechanical equipment, so that the repainting device can quickly move to the target position when repainting. In addition, the positioning component 4 can determine the damage state of the paint film at the target position, so that the damage state of the paint film at the target position can be determined, and then the repainting component 3 can automatically repaint the target position according to the damage state of the paint film at the target position, so that the paint film after repainting is consistent with the previous undamaged state, thereby ensuring the consistency of the paint spraying quality.

[0036] It can be seen that the paint touch-up device provided in the embodiment of the present disclosure can pre-determine the target position of the paint touch-up through the positioning component 4, and determine the damage state of the paint film at the target position. Then the paint touch-up device is moved to the target position through the moving platform 1, and then the paint touch-up component 3 automatically touches up the target position, which greatly improves the working efficiency and repair speed, while reducing the labor cost. Moreover, since the paint touch-up component 3 can automatically touch up the paint according to the damage state of the paint film at the target position, the consistency of the paint spraying quality can be guaranteed and the coating effect can be improved.

[0037] Optionally, the mobile platform 1 includes a frame 10, multiple walking wheels 11 and a walking drive member 12. The multiple walking wheels 11 are distributed at intervals on one side of the frame 10 and are respectively connected to the frame 10 for rotation. The rotation axes of the multiple walking wheels 11 are parallel to each other, and the length direction of the rotation axis is perpendicular to the moving direction of the frame 10. The walking wheels 11 can be adsorbed on the outer surface of the mechanical equipment.

[0038] The travel driving member 12 is connected to the plurality of travel wheels 11 and is also connected to the stand 10 . The travel driving member 12 is used to drive the travel wheels 11 to rotate.

[0039] In the above implementation, the travel drive member 12 is used to drive the travel wheel 11 to rotate, so that the travel wheel 11 can roll freely on the outer surface of the mechanical device, thereby realizing the movement of the mobile platform 1. On the one hand, the travel wheel 11 is used to be adsorbed on the outer surface of the mechanical device, so that the mobile platform 1 and even the entire paint touch-up device can be connected to the outer surface of the mechanical device without slipping. On the other hand, the travel wheel 11 rolls freely relative to the outer surface of the mechanical device, which can reduce the friction between the two, so that the mobile platform 1 can easily move on the outer surface of the mechanical device.

[0040] In the disclosed embodiment, the stand 10 is a plate-like structure. There are four running wheels 11, all of which are magnetic wheels. The four running wheels 11 are spaced apart at the four corners of the stand 10 and are arranged in two columns and two rows. The travel drive member 12 is four motors, and the four motors are connected to the four running wheels 11 one by one. This ensures that the stand 10 can be balanced, and also facilitates the connection between the travel drive member 12 and the running wheel 11.

[0041] In other examples, the mobile platform 1 may also be other structures, for example, a magnetic crawler is provided below the plate-like structure, and a plurality of driving wheels meshed with the crawler and a motor capable of driving the driving wheels to rotate are provided inside the crawler. The crawler can be adsorbed on the outer surface of the mechanical equipment. However, this makes the structure of the mobile platform 1 relatively complicated.

[0042] In addition, in order to facilitate the installation of the travel drive member 12, the travel drive member 12 is installed in the stand 10 through a bracket (not shown in the figure).

[0043] Optionally, the mobile platform 1 further includes a clamping member 13 and a clamping driving member 14 , and the clamping member 13 is connected to the platform 10 .

[0044] The clamping driving member 14 is connected to the platform and the clamping member 13 respectively. The clamping driving member 14 is used to control the clamping member 13 to clamp the mechanical device after the mobile platform 1 moves to the target position.

[0045] In the above implementation, the clamping member 13 is used to clamp the mechanical device after the stage 10 moves to the target position, so that the mobile stage 1 is firmly connected to the mechanical device and will not slip. That is, the clamping member 13 is used to further improve the connection firmness between the mobile stage 1 and the mechanical device. The clamping drive member 14 is used to control the action of the clamping member 13, so that after the stage 10 moves to the target position, the clamping member 13 can tightly hold the mechanical device.

[0046] Optionally, the clamping member 13 includes two clamp half rings 131, one end of the two clamp half rings 131 along the arc length direction is hinged to each other, and the other ends of the two clamp half rings 131 are spaced apart from each other to form a gap 1310. The axis of the clamp half ring 131 is perpendicular to the rotation axis of the running wheel 11.

[0047] The clamping drive member 14 is connected to the two clamp half rings 131 and is used to control the two clamp half rings 131 to move closer to or farther away from each other.

[0048] In the above implementation, the clamp half ring 131 is used to hold the mechanical equipment. Moreover, the reason why the clamping member 13 is set as the clamp half ring 131 is because the clamp half ring 131 can match the mechanical equipment in the embodiment of the present disclosure. The mechanical equipment in the embodiment of the present disclosure is a boom crane. And the boom crane is formed by welding a plurality of steel pipes in an interlaced manner. The setting of the clamp half ring 131 facilitates the clamping member 13 to be sleeved on the outside of the steel pipe. Moreover, the arrangement of the notch 1310 can make the two ends of the other end of the clamp half ring 131 move closer to or away from each other, so that the clamp half ring 131 can be easily controlled to hold or loosen the steel pipe.

[0049] In other examples, the structure of the clamping member 13 is flexibly set according to the structure of the mechanical equipment.

[0050] Optionally, the holding member 13 further includes an elastic member 132 , the elastic member 132 is located in the notch 1310 , and two ends of the elastic member 132 are respectively connected to the other ends of the two clamp half rings 131 .

[0051] In the above implementation, the elastic member 132 can form a closed ring together with the clamp half ring 131, so that the clamping member 13 can always be sleeved outside the steel pipe and will not fall off.

[0052] In other examples, the elastic member 132 may also be other structures, such as an elastic rope, etc.

[0053] Optionally, the clamping drive 14 includes an air pump 141 and two cylinders 142, and the two cylinders 142 are respectively located on opposite sides of the notch 1310 along the circumference of the clamp half ring 131, and the rodless cavity of each cylinder 142 is connected to the air outlet of the air pump 141, and the piston rod of the cylinder 142 is respectively connected to the other end of the clamp half ring 131, and the length direction of the piston rod of the cylinder 142 is the radial direction of the clamp half ring 131.

[0054] The clamping drive member 14 is configured as an air pump 141 and two air cylinders 142. The air pump 141 can provide air source for the two air cylinders 142, thereby driving the air cylinders 142 to move. The two air cylinders 142 are used to correspond to the other ends of the clamp half ring 131 one by one, thereby controlling the other ends of the clamp half ring 131 to move closer or farther from each other through the extension and contraction of the piston rod.

[0055] That is, when the paint touch-up device needs to be moved to the target position, the piston rods of the two cylinders 142 are retracted, the other ends of the clamp half ring 131 are moved away from each other, and the clamp half ring 131 does not hold the steel pipe tightly. When the paint touch-up device moves to the target position, the piston rods of the two cylinders 142 can be controlled to extend, the other ends of the clamp half ring 131 are moved closer to each other, and the clamp half ring 131 holds the steel pipe tightly.

[0056] In other examples, the clamping drive member 14 may also be other structures, such as a hydraulic cylinder, an electric cylinder, etc.

[0057] Optionally, the positioning assembly 4 includes a scanning unit 41, a joint bearing 42 and a rotating arm 43. The scanning unit 41 is movably connected to one end of the rotating arm 43 through the joint bearing 42, and the other end of the rotating arm 43 is rotationally connected to the mobile platform 1. The scanning unit 41 is used to determine the target position.

[0058] In the above implementation, the scanning unit 41 is used to scan and detect the outer surface of the mechanical equipment, so as to analyze the quality and integrity of the paint film on the outer surface of the mechanical equipment, thereby determining the target position. The joint bearing 42 is used to connect the scanning unit 41 with the rotating arm 43, so that the scanning unit 41 and the rotating arm 43 are ball-jointed, so that the scanning unit 41 can rotate relative to the rotating arm 43 in different directions, ensuring that the scanning unit 41 can scan various positions of the mechanical equipment. The rotating arm 43 is used to rotate relative to the moving platform 1, so that the scanning unit 41 can scan the surroundings of the moving platform 1.

[0059] In other words, the above structure enables the positioning component 4 to scan the outer surface of the mechanical equipment in an all-round and large-scale manner, thereby quickly and accurately determining the target position.

[0060] Optionally, the scanning unit 41 includes a scanner 411 and a remote sensing sensor 412. The scanner 411 is used to scan the outer surface of the mechanical equipment to determine whether it needs to be repainted. The remote sensing sensor 412 is used to detect the outer surface of the mechanical equipment to determine the target position.

[0061] In the above implementation, the scanner 411 is used to scan the outer surface of the mechanical equipment. The scanner 411 is provided with a paint surface detection instrument based on optical principles. The scanner 411 emits light of a specific wavelength to the outer surface of the mechanical equipment, and then receives the reflected light reflected by the outer surface of the mechanical equipment or the scattered light scattered back. By analyzing the spectral characteristics of the reflected light and the scattered light, the quality and integrity of the paint film on the outer surface of the mechanical equipment can be determined, thereby discovering problems such as paint damage.

[0062] The remote sensing sensor 412 is used to detect the outer surface of the mechanical equipment. The remote sensing sensor 412 transmits specific electromagnetic waves to the outer surface of the mechanical equipment, then receives the electromagnetic waves reflected from the outer surface of the mechanical equipment, and determines the target position that needs to be repainted by analyzing the signal changes of the emitted electromagnetic waves and the reflected electromagnetic waves. For example, after the remote sensing sensor 412 transmits electromagnetic waves to the outer surface of the mechanical equipment, when the electromagnetic waves are emitted to the position where the paint film is damaged, due to the damage of the paint film, the electromagnetic waves will be diffusely reflected or scattered at this position, and the reflection direction of the formed echo is irregular, resulting in inconsistent echo angles. When the electromagnetic waves are emitted to the position where the paint film is intact, due to the smooth surface of the position, the electromagnetic waves will be mirror-reflected at this position, and the reflection direction of the formed echo is regular, and the emission angle of the echo is clear. In this way, the target position can be judged according to the different angles of the echo. Moreover, the specific position of the target position in the mechanical equipment can also be accurately located according to the time difference between the reflected echo and the emitted electromagnetic wave.

[0063] That is, the scanner 411 will scan the paint thickness and the repainting condition of the outer surface of the mechanical equipment, and the remote sensing sensor 412 can confirm the target position. The scanner 411 is used to determine the paint damage condition, and the remote sensing sensor 412 is used to locate the target position. The scanner 411 can detect paint damage and other problems in time for maintenance and care. The remote sensing sensor 412 accurately finds the part that needs to be repainted, thereby improving the efficiency and quality of repainting.

[0064] For example, the remote sensing sensor 412 may be a detector, a radar, or the like.

[0065] In the disclosed embodiment, since the volume of the scanner 411 is larger than that of the remote sensing sensor 412 , in order to facilitate layout and prevent the scanner 411 from blocking the remote sensing sensor 412 , the scanner 411 is connected between the remote sensing sensor 412 and the joint bearing 42 .

[0066] In the disclosed embodiment, the rotating arm 43 includes a connecting shaft 431 and a rotating shaft 432. One end of the connecting shaft 431 is connected to the stage 10 by a fastener such as a bolt, and the other end of the connecting shaft 431 is rotatably connected to the rotating shaft 432 by a bearing or the like. The connecting shaft 431 is perpendicular to the table surface to which the stage 10 is connected, and is perpendicular to the rotating shaft 432. The other end of the rotating shaft 432 is connected to the scanning unit 41 by a fastener such as a bolt.

[0067] The connecting shaft 431 is used to connect the rotating arm 43 to the moving stage 1 , and the rotating shaft 432 is used to rotate relative to the moving stage 1 , so that the scanning unit 41 can rotate relative to the moving stage 1 .

[0068] Optionally, the paint touch-up device further comprises a controller 5, which is electrically connected to the positioning component 4, the moving platform 1 and the paint touch-up component 3 respectively.

[0069] The controller 5 is used to control the positioning component 4 to scan and inspect the outer surface of the mechanical equipment, determine the target position through the positioning component 4, and control the mobile platform 1 to move to the target position after the positioning component 4 determines the target position, and control the paint touch-up component 3 to touch-up the target position after the mobile platform 1 moves to the target position.

[0070] In the above implementation, the controller 5 is used to automatically control the working states of the positioning component 4, the moving platform 1 and the paint touch-up component 3, etc., so as to realize full automation of the paint touch-up device in the entire working process.

[0071] At the same time, the controller 5 can adjust the painting parameters and modes of the paint touch-up component 3 according to actual conditions to adapt to mechanical equipment crane booms of different shapes and sizes and ensure the quality and consistency of the paint.

[0072] Optionally, the controller 5 is a control system having a programmable logic controller, such as a central control machine, a computer, and a control terminal for controlling mechanical equipment, etc.

[0073] Optionally, the paint touch-up assembly 3 includes a paint spraying main pipeline 31, a paint bucket 33 and at least one paint spraying branch pipeline 34, the two ends of the paint spraying main pipeline 31 are respectively connected to the paint spraying branch pipeline 34 and the paint bucket 33, and the end of the paint spraying branch pipeline 34 away from the paint spraying main pipeline 31 is a paint spraying end. The paint spraying end can rotate relative to the mobile platform 1 to change the paint spraying angle, and the paint bucket 33 is connected to the mobile platform 1. The paint spraying branch pipeline 34 is electrically connected to the controller 5 to control the paint spraying flow and the paint spraying angle of the paint spraying branch pipeline 34 through the controller 5.

[0074] In the above implementation, the paint bucket 33 is used to hold paint. The main paint spraying pipeline 31 is used to transport the paint to the spraying branch pipeline. The spraying branch pipeline is used to spray the paint to the target position to achieve touch-up.

[0075] The paint spraying end of the paint spraying branch pipeline 34 can rotate relative to the movable platform 1, so that the paint spraying angle of the paint spraying end can be changed, thereby spraying paint on the target position in an all-round manner.

[0076] Optionally, the paint spraying main pipeline 31 includes a main pipe section 311 and a switch valve 312. Both ends of the main pipe section 311 are respectively connected to the paint spraying branch pipeline 34 and the paint bucket 33, and the switch valve 312 is connected to the middle of the main pipe section 311.

[0077] The switch valve 312 is a main switch, and the switch valve 312 is used to control whether the interior of the main pipe section 311 is flowing or blocked, thereby controlling whether the paint in the paint bucket 33 is transported to the paint spraying main pipeline 31.

[0078] Optionally, the paint branch pipeline 34 includes a nozzle 341, a branch pipe section 343 and a proportional valve 344. The two ends of the branch pipe section 343 are respectively connected to the paint main pipeline 31 and the nozzle 341. The nozzle 341 is the paint end of the paint branch pipeline 34. The proportional valve 344 is connected to the middle part of the branch pipe section 343 for controlling the flow area of ​​the branch pipe section 343.

[0079] In the above implementation, the proportional valve 344 is used to control whether the paint in the paint spraying main pipeline 31 is delivered to the nozzle 341 , and to control the flow rate of the paint delivered to the nozzle 341 .

[0080] That is to say, by controlling the opening size of the proportional valve 344, the nozzle 341 can be controlled with high precision to control the amount of paint sprayed in real time, so that the paint spraying device can accurately spray paint on the target position according to the preset paint spraying parameters and mode.

[0081] In the disclosed embodiment, the switch valve 312 and the proportional valve 344 are both solenoid valves, and the switch valve 312 and the proportional valve 344 are respectively electrically connected to the controller 5. The controller 5 can automatically control the opening and closing of the switch valve 312 and the opening and closing and opening size of the proportional valve 344.

[0082] Exemplarily, in order to further increase the painting speed, there are two branch painting pipelines 34. The spray heads 341 in the two branch painting pipelines 34 protrude out of the opposite sides of the moving platform 1 respectively.

[0083] The following briefly introduces the working process of the paint touch-up device provided in the embodiment of the present disclosure:

[0084] First, the controller 5 controls the scanner 411 to scan the outer surface of the mechanical equipment. The scanner 411 emits light of a specific wavelength and analyzes the quality and integrity of the paint surface according to the reflection and scattering conditions. The controller 5 controls the remote sensing sensor 412 to obtain the three-dimensional shape of the mechanical equipment and determine the target position that needs to be repainted. The controller 5 records the target position.

[0085] Then, the controller 5 controls the travel drive member 12 in the mobile platform 1 to start. At the same time, the air pump 141 stops working, and the clamp half ring 131 opens under the pre-tightening force of the elastic member 132. At this time, the entire paint touch-up device is disconnected from the mechanical equipment. The controller 5 controls the travel drive member 12 to start, and the travel wheel 11 starts to rotate to drive the mobile platform 1 forward. When the mobile platform 1 reaches the target position, the air pump 141 starts to run, generating air pressure, which drives the piston rod of the air cylinder 142 to extend, so that the clamp half ring 131 compresses the elastic member 132. At this time, the entire paint touch-up device holds the mechanical equipment tightly to prepare for the paint touch-up action.

[0086] Next, the controller 5 controls the nozzle 341 to aim at the area that needs to be repainted. The controller 5 controls the switch valve 312 to receive the paint touch-up signal and open it. The paint bucket 33 enters the proportional valve 344 through the main pipe section 311. By controlling the opening size of the proportional valve 344, the nozzle 341 is controlled to spray paint on the target position. When the controller 5 confirms through the scanner 411 that the paint touch-up is gradually completed, the opening of the proportional valve 344 is first reduced until it is closed, and finally the switch valve 312 is closed to completely stop the paint touch-up operation, and the paint touch-up operation at the next position is performed.

[0087] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A paint touch-up device, characterized in that: The paint touch-up device comprises a moving platform (1), a paint touch-up component (3) and a positioning component (4); the moving platform (1) is used to be connected to a mechanical device and is capable of moving on the outer surface of the mechanical device; The paint touch-up component (3) is connected to the mobile platform (1) and can swing relative to the mobile platform (1), and the paint touch-up component (3) is used to touch up the target position according to the damage state of the paint film at the target position, and the target position is located on the outer surface of the mechanical equipment; The positioning component (4) is connected to the mobile platform (1), and the positioning component (4) is used to detect the outer surface of the mechanical equipment to determine the target position and judge the damage state of the paint film at the target position.

2. The paint touch-up device according to claim 1, characterized in that: The mobile platform (1) comprises a platform (10), a plurality of running wheels (11) and a running drive member (12); the plurality of running wheels (11) are distributed at intervals on one side of the platform (10) and are respectively connected to the platform (10) for rotation; the rotation axes of the plurality of running wheels (11) are parallel to each other, and the length direction of the rotation axis is perpendicular to the moving direction of the platform (10); the running wheels (11) can be adsorbed on the outer surface of the mechanical equipment; The travel drive member (12) is connected to the plurality of travel wheels (11) and to the stand (10), and the travel drive member (12) is used to drive the travel wheels (11) to rotate.

3. The paint touch-up device according to any one of claims 1 to 2, characterized in that: The positioning assembly (4) comprises a scanning unit (41), a joint bearing (42) and a rotating arm (43); the scanning unit (41) is movably connected to one end of the rotating arm (43) via the joint bearing (42); the other end of the rotating arm (43) is rotationally connected to the movable platform (1); the scanning unit (41) is used to detect the outer surface of the mechanical device to determine the target position.

4. The paint touch-up device according to claim 3, characterized in that: The scanning unit (41) comprises a scanner (411) and a remote sensing sensor (412); The scanner (411) is used to scan the outer surface of the mechanical equipment to determine whether repainting is required, and the remote sensing sensor (412) is used to detect the outer surface of the mechanical equipment to determine the target position.

5. The paint touch-up device according to any one of claims 1 to 2 and 4, characterized in that: The paint touch-up device further comprises a controller (5), wherein the controller (5) is electrically connected to the positioning component (4), the moving platform (1) and the paint touch-up component (3) respectively; The controller (5) is used to control the positioning component (4) to scan and inspect the outer surface of the mechanical equipment, determine the target position through the positioning component (4), and control the mobile platform (1) to move to the target position after the positioning component (4) determines the target position, and control the paint touch-up component (3) to touch up the paint at the target position after the mobile platform (1) moves to the target position.

6. The paint touch-up device according to claim 5, characterized in that: The paint touch-up assembly (3) comprises a main paint spraying pipeline (31), a paint bucket (33) and at least one paint spraying branch pipeline (34); the two ends of the main paint spraying pipeline (31) are respectively connected to the paint spraying branch pipeline (34) and the paint bucket (33); and the end of the paint spraying branch pipeline (34) away from the main paint spraying pipeline (31) is a paint spraying end, and the paint spraying end can rotate relative to the movable platform (1) to change the paint spraying angle; the paint bucket (33) is connected to the movable platform (1); The paint spraying branch pipeline (34) is electrically connected to the controller (5) so that the paint spraying flow rate and the paint spraying angle of the paint spraying branch pipeline (34) can be controlled by the controller (5).

7. The paint touch-up device according to claim 6, characterized in that: The paint spray branch pipeline (34) comprises a nozzle (341), a branch pipe section (343) and a proportional valve (344); the two ends of the branch pipe section (343) are respectively connected to the paint spray main pipeline (31) and the nozzle (341); the nozzle (341) is the paint spray end of the paint spray branch pipeline (34); the proportional valve (344) is connected to the middle part of the branch pipe section (343) and is used to control the flow area of ​​the branch pipe section (343).

8. The paint touch-up device according to claim 7, characterized in that: There are two branch paint spraying pipelines (34); The spray heads (341) in the two branch paint spray pipelines (34) respectively protrude outside the opposite sides of the movable platform (1).

9. The paint touch-up device according to claim 2, characterized in that: The mobile platform (1) further comprises a clamping member (13) and a clamping driving member (14), wherein the clamping member (13) is connected to the platform (10); The clamping drive component (14) is respectively connected to the platform and the clamping component (13), and the clamping drive component (14) is used to control the clamping component (13) to clamp the mechanical device after the mobile platform (1) moves to the target position.

10. The paint touch-up device according to claim 9, characterized in that: The clamping member (13) comprises two clamp half rings (131) and an elastic member (132); one end of the two clamp half rings (131) along the arc length direction is hinged to each other; the other ends of the two clamp half rings (131) are spaced apart from each other to form a notch (1310); the elastic member (132) is located in the notch (1310), and both ends of the elastic member (132) are respectively connected to the other ends of the two clamp half rings (131); The clamping drive member (14) is connected to the two clamp half rings (131) and is used to control the two clamp half rings (131) to move closer to or farther from each other.

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