Roll coating robot with curved surface self-adaption capability

Abstract

The invention discloses a roll coating robot with curved surface self-adaption capability, and relates to the technical field of roll coating equipment, a roll coating mechanism comprises a mounting frame, a plurality of self-adaption roll coating units are fixedly mounted at the bottom of the mounting frame, each self-adaption roll coating unit comprises an adjusting frame, and a roller frame is slidably connected to the bottom of each adjusting frame; coating rollers are rotationally connected to the two sides of the roller frame, a linear motor is fixedly mounted in the middle of the inner wall of the adjusting frame, an adjusting rod is fixedly connected to the output end of the linear motor, and an adjusting groove is formed in the bottom of the adjusting rod; according to the self-adaptive roller coating equipment, an integrated coating roller in common roller coating equipment is divided into a plurality of self-adaptive roller coating units which act independently, and the coating rollers are driven by the linear motors to realize self-adaptive lifting motion, so that enough contact pressure between each coating roller and an object to be subjected to roller coating is ensured; therefore, the coating requirements of different curved surface shapes and positions are met.

Description

Technical Field

[0001] The invention relates to roller coating equipment, in particular to a roller coating robot with curved surface self-adaptation capability. Background Art

[0002] Spraying may face challenges when dealing with complex curved surfaces. Since the uniformity of spraying mainly depends on the movement speed of the spray gun and the atomization effect of the paint, it may be difficult to achieve perfect results for curved surfaces or special-shaped structures. Some parts on the curved surface may cause uneven coating or inconsistent thickness due to problems with spraying angle or distance. Roller coating has advantages when dealing with detailed parts of curved workpieces.

[0003] Since the existing roller coating mechanical device has an integrated roller, the roller is driven to move horizontally or rotate to achieve roller coating. Such devices cannot be adjusted adaptively according to the different curved shapes of different positions of the object to be coated, and it is difficult to meet the need for uniform coating of the curved surface of the object. Therefore, the existing curved surface roller coating method is generally completed by manually holding the roller and rolling it evenly on the curved surface workpiece. This method consumes a lot of manpower and is not suitable for the coating processing needs of large quantities of parts. Summary of the invention

[0004] The purpose of the present invention is to provide a roller coating robot with surface adaptive capability to solve the problem that the roller coating device in the prior art mentioned in the above background technology cannot be adaptively adjusted according to the surface shape of the object to be coated, and it is difficult to meet the need for uniform coating of the curved surface position of the object.

[0005] To achieve the above object, the present invention provides the following technical solutions: The invention relates to a coating robot with surface adaptive capability, comprising a coating mechanism and a translation mechanism for driving and parallel movement of the coating mechanism; the coating mechanism comprises a mounting frame, a plurality of adaptive coating units are fixedly mounted on the bottom of the mounting frame, the adaptive coating unit comprises an adjusting frame, a roller frame is slidably connected to the bottom of the adjusting frame, coating rollers are rotatably connected to both sides of the roller frame, an adsorption layer for adsorbing coating is provided on the surface of the coating roller, and the adsorption layer is elastic and can be deformed when the adsorption layer is squeezed, so as to fill the gap between two adjacent coating rollers, a linear motor is fixedly mounted on the middle part of the inner wall of the adjusting frame, an adjusting rod is fixedly connected to the output end of the linear motor, an adjusting groove is provided at the bottom of the adjusting rod, the top of the roller frame is slidably connected to the inner wall of the adjusting groove, a pressure sensor is fixedly connected to one end of the inner wall of the adjusting groove, and a push spring is fixedly connected to the top of the roller frame.

[0006] As a further solution of the present invention: a paint conveying assembly for conveying paint to the coating roller is arranged above the coating roller, and the paint conveying assembly includes a cover plate, a feeding pipe is fixedly connected to the middle of the cover plate, a diverter plate is fixedly connected to the bottom of the feeding pipe, a diverter hole is opened at the bottom of the diverter plate, and the bottom of the diverter plate is arranged corresponding to the top of the coating roller.

[0007] As a further solution of the present invention: a reflux pipe is fixedly connected to one side of the cover plate, one end of the reflux pipe is fixedly connected to a three-way pipe, two output ports of the three-way pipe are fixedly connected to diversion pipes, one of the diversion pipes extends to one end of the inner cavity of the cover plate, one end of the other diversion pipe is fixedly connected to a reflux suction cup, a residual material scraper is arranged on one side of the reflux suction cup, and one side of the residual material scraper is arranged in contact with the coating roller.

[0008] As a further solution of the present invention: blocking plates are fixedly connected to both sides of the inner wall of the adjustment frame, and a receiving cavity is provided on the side of the two blocking plates away from the linear motor, and the feeding pipe and the return pipe are respectively inserted into the two receiving cavities.

[0009] As a further solution of the present invention: a paint processing mechanism is fixedly installed on the top of the mounting frame, and the paint processing mechanism includes a mounting cover plate, a paint box is fixedly connected to the middle part of the inner wall of the mounting cover plate, a filling port is opened on the top of the paint box, and a closing cover is threadedly connected to the top of the filling port, a reflux pump is fixedly connected to one side of the inner wall of the mounting cover plate, the input end of the reflux pump is fixedly connected to a reflux main pipe, the output end of the reflux pump is connected to the paint box, a paint pump is fixedly installed on one side of the paint box, and the output end of the paint pump is fixedly connected to a feeding main pipe; one end of the feeding main pipe is fixedly connected to a feeding collecting plate, and the tops of several feeding pipes are fixedly connected to the bottom of the feeding collecting plate, the bottom of the reflux main pipe is fixedly connected to the reflux collecting plate, and the tops of several reflux pipes are fixedly connected to the bottom of the reflux collecting plate; a filter is fixedly installed in the middle of the reflux main pipe.

[0010] As a further solution of the present invention: the translation mechanism includes a support frame, a transverse guide rail is fixedly installed in the middle of the support frame, a seat plate is slidably installed on the inner wall of the transverse guide rail, a lifting cylinder is fixedly installed on the bottom of the seat plate, and the output end of the lifting cylinder is fixedly connected to the mounting frame.

[0011] As a further solution of the present invention: a plurality of foot plates are fixedly connected to the bottom of the support frame, and a plurality of driving rollers are rotatably mounted on the bottom edges of the foot plates.

[0012] As a further solution of the present invention: a base is arranged below the translation mechanism, a plurality of limit grooves are provided on the top of the base, the plurality of limit grooves are respectively provided corresponding to a plurality of foot plates, roller grooves are provided on the inner wall edges of the plurality of limit grooves, the roller grooves are provided corresponding to the driving rollers, and lifting handles are fixedly connected to both ends of the top of the base.

[0013] As a further solution of the present invention: a storage cavity is opened in the middle of several of the foot plates, the inner wall of the storage cavity is slidably connected with a positioning block, a displacement sensor is fixedly installed at one end of the inner wall of the storage cavity, and the top of the positioning block is fixedly connected with a reset spring.

[0014] As a further solution of the present invention: a locking plug plate is slidably connected to one side of several of the limit grooves, a positioning hole is opened in the middle of the positioning block, one end of the locking plug plate is engaged with the positioning hole, and the other end of the locking plug plate is fixedly connected to a pull-out plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the present invention divides the integrated coating roller in the common coating equipment into a plurality of independently acting adaptive coating units, and uses a linear motor to drive the coating roller to realize adaptive lifting and lowering movement, thereby ensuring that there is sufficient contact pressure between each coating roller and the object to be coated, thereby meeting the coating needs of different curved surface shapes and positions; The present invention provides a paint delivery component, uses a feeding pipe to connect the paint, and delivers the paint to the surface of the coating roller after being diverted by a diverter plate, so as to realize automatic feeding of the coating roller; at the same time, a reflux pipe is provided to facilitate the collection of excess paint, and the reflux pipe and the reflux suction cup are provided to suck and recover the excess paint, so as to realize efficient use of the paint, and at the same time avoid the paint dripping during the rolling process, causing uneven coating and paint waste; The present invention drives the mounting frame and the roller coating mechanism to move up and down as a whole through the lifting cylinder, and drives the roller coating mechanism to move laterally as a whole through the transverse guide rail, thereby realizing flexible adjustment of the position of the roller coating mechanism to meet the coating needs of objects of different sizes; in conjunction with the rotation of the driving roller arranged at the bottom of the support frame, the robot body is driven to move freely when the base is not in use, so as to meet the needs of large-area spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 A three-dimensional diagram of the adaptive roller coating unit of the present invention; Figure 3 is a side cross-sectional view of the adaptive roller coating unit of the present invention; Figure 4 It is a front cross-sectional view of the adaptive roller coating unit of the present invention; Figure 5 is a cross-sectional view of the coating treatment mechanism of the present invention; Figure 6 It is a bottom view of the coating treatment mechanism of the present invention; Figure 7 is a three-dimensional diagram of the base of the present invention; Figure 8 is a cross-sectional view of the foot plate of the present invention; Fig. 9 It is a three-dimensional diagram of the robot body of the present invention.

[0017] In the figure: 101, base; 102, limit groove; 103, roller groove; 104, locking plug plate; 105, pull-out plate; 106, lifting handle; 2, translation mechanism; 201, support frame; 202, foot plate; 203, transverse guide rail; 204, seat plate; 205, lifting cylinder; 206, positioning block; 207, positioning hole; 208, displacement sensor; 209, reset spring; 210, driving roller; 3, rolling mechanism; 301, mounting frame; 302, adaptive rolling unit; 3021, adjustment frame; 3022, linear motor; 3023, adjustment rod; 3024, pressure sensor ; 3025, push spring; 3026, roller frame; 3027, coating roller; 3028, blocking plate; 303, paint delivery assembly; 3031, cover plate; 3032, diverter plate; 3033, residual material scraper; 3034, feeding pipe; 3035, reflux pipe; 3036, reflux suction cup; 3037, diverter pipe; 4, paint processing mechanism; 401, installation cover plate; 402, feeding collecting plate; 403, reflux collecting plate; 404, filter; 405, reflux pump; 406, closing cover; 407, paint box; 408, paint pump; 409, reflux main pipe; 410, feeding main pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 In an embodiment of the present invention, a coating robot with curved surface self-adaptation capability includes a base 101 and a robot body disposed on the base 101; the coating robot of the present application is set to two working modes according to whether the base 101 is used or not; In the first working mode, when the base 101 is used, the robot body and the base 101 are assembled and installed as one body. Figure 1In this state, the base 101 is placed on the ground or other supports, and the object to be rolled is placed on the base 101 manually or with an external loading device, and the robot body performs the rolling operation and removes it after the rolling is completed; The robot body includes a roller coating mechanism 3 and a translation mechanism 2 for driving the roller coating mechanism 3 to move in parallel; the roller coating mechanism 3 includes a mounting frame 301, and a plurality of adaptive roller coating units 302 are fixedly mounted at the bottom of the mounting frame 301, see Figure 2-Figure 4 The adaptive roller coating unit 302 includes an adjustment frame 3021, a roller frame 3026 is slidably connected to the bottom of the adjustment frame 3021, and coating rollers 3027 are rotatably connected to both sides of the roller frame 3026. A linear motor 3022 is fixedly installed in the middle of the inner wall of the adjustment frame 3021, and an adjustment rod 3023 is fixedly connected to the output end of the linear motor 3022. An adjustment groove is provided at the bottom of the adjustment rod 3023, and the top of the roller frame 3026 is slidably connected to the inner wall of the adjustment groove. By dividing the integrated coating roller in the common roller coating equipment into a plurality of independently acting adaptive roller coating units 302, the linear motor 3022 is used to drive the coating roller 3027 to move up and down, so as to meet the coating needs of curved surface positions of different shapes; To ensure that there is sufficient contact pressure between each coating roller 3027 and the object to be coated, and thus ensure the stable coating operation, please refer to Figure 3 A pressure sensor 3024 is fixedly connected to one end of the inner wall of the adjustment groove, and a push spring 3025 is fixedly connected to the top of the roller frame 3026. During the coating process, the linear motor 3022 drives the adjusting rod 3023, the roller frame 3026 and the coating roller 3027 to descend as a whole. After the coating roller 3027 contacts the object to be coated, the push spring 3025 is compressed until the pressure sensor 3024 reading reaches a preset pressure value. At this time, it is judged that the coating roller 3027 is in stable contact with the object to be coated, and the coating operation can be performed; during the coating process, when the coating roller 3027 moves to the concave surface position, it moves downward as a whole, and the pressure value of the pressure sensor 3024 decreases. At this time, the linear motor 3022 drives the adjusting rod 3023 to press down until the pressure sensor 3024 returns to the preset value; conversely, when the coating roller 3027 moves to the convex surface position, it moves upward as a whole, and the pressure value of the pressure sensor 3024 increases. At this time, the linear motor 3022 drives the adjusting rod 3023 to move upward until the pressure sensor 3024 returns to the preset value; through the above adaptive adjustment, stable coating operation on different curved surface positions is achieved during the coating process. In addition, the adsorption layer on the surface of the coating roller 3027 for adsorbing paint is elastic. After the coating roller 3027 and the coating object are in stable contact due to pressure, the adsorption layer is compressed, so that the adsorption layer produces a partial deformation along the axial direction of the coating roller 3027. This deformed part is just used to fill the gap between two adjacent coating rollers 3027.

[0020] See also Figure 3 and Figure 4 In order to achieve stable paint delivery to each coating roller 3027, a paint delivery component 303 is arranged above the coating roller 3027. The paint delivery component 303 includes a cover plate 3031. A feeding pipe 3034 is fixedly connected to the middle of the cover plate 3031. A diverter plate 3032 is fixedly connected to the bottom of the feeding pipe 3034. The bottom of the diverter plate 3032 is set as an arc surface and has a diverter hole. The arc surface at the bottom of the diverter plate 3032 is correspondingly fitted with the top of the coating roller 3027. The paint is connected through the feeding pipe 3034, and is diverted by the diverter plate 3032 and then delivered to the surface of the coating roller 3027, thereby realizing automatic paint feeding operation on the coating roller 3027.

[0021] See also Figure 4 , the present application utilizes a feeding pipe 3034 to access the paint to realize feeding, and due to reasons such as uneven rolling speed, it is inevitable that excess paint that is not absorbed by the coating roller will be generated, and this part of the paint is very easy to drip during the rolling process, causing the coating to be too thick at the dripping position, resulting in uneven coating, and also causing waste of paint; therefore, the present application fixes a return pipe 3035 on one side of the cover plate 3031, and one end of the return pipe 3035 is fixedly connected to a three-way pipe, and the two output ports of the three-way pipe are fixedly connected to a shunt pipe 3037, one of which A shunt pipe 3037 extends to one end of the inner cavity of the cover plate 3031, and one end of the other shunt pipe 3037 is fixedly connected to a reflux suction cup 3036. To facilitate the collection of excess paint, a residual material scraper 3033 is provided on one side of the reflux suction cup 3036, and one side of the residual material scraper 3033 is attached to the coating roller 3027 to scrape the paint; by setting the reflux pipe 3035, and coordinating the settings of the shunt pipe 3037 and the reflux suction cup 3036, the excess paint is sucked and recovered to achieve efficient utilization of the paint.

[0022] See also Figure 3 In order to avoid the existence of the feeding pipe 3034 and the return pipe 3035 from hindering the lifting and lowering operations of the linear motor 3022 and the adjusting rod 3023, blocking plates 3028 are fixedly connected to both sides of the inner wall of the adjusting frame 3021, and the two blocking plates 3028 are provided with a accommodating cavity on the side away from the linear motor 3022, and the feeding pipe 3034 and the return pipe 3035 are respectively inserted into the two accommodating cavities.

[0023] To continuously supply paint to each feeding tube 3034 and recycle excess paint, please refer to Figure 1 and Figure 5A paint processing mechanism 4 is fixedly installed on the top of the mounting frame 301. The paint processing mechanism 4 includes a mounting cover plate 401. A paint box 407 is fixedly connected to the middle of the inner wall of the mounting cover plate 401. A filling port is opened on the top of the paint box 407. A closing cover 406 is threadedly connected to the top of the filling port. A reflux pump 405 is fixedly connected to one side of the inner wall of the mounting cover plate 401. The input end of the reflux pump 405 is fixedly connected to a reflux main pipe 409. The output end of the reflux pump 405 is connected to the paint box 407. A paint pump 408 is fixedly installed on one side of the paint box 407. The output end of the paint pump 408 is fixedly connected to a feeding main pipe 410; a filter 404 is fixedly installed in the middle of the reflux main pipe 409 to filter and remove impurities in the refluxed paint; See also Figure 5 and Figure 6 In order to carry out centralized paint delivery and residual material recovery operations for each adaptive roller coating unit 302, one end of the loading main pipe 410 is fixedly connected to the loading collecting plate 402, and the bottom of the return main pipe 409 is fixedly connected to the return collecting plate 403. Both the loading collecting plate 402 and the return collecting plate 403 have cavities, and the tops of several loading pipes 3034 are fixedly connected to the bottom of the loading collecting plate 402 and communicate with its internal cavity, and the tops of several return pipes 3035 are fixedly connected to the bottom of the cavity in the return collecting plate 403 and communicate with its internal cavity.

[0024] See also Figure 1 The translation mechanism 2 includes a support frame 201, a transverse guide rail 203 is fixedly installed in the middle of the support frame 201, a seat plate 204 is slidably installed on the inner wall of the transverse guide rail 203, and a lifting cylinder 205 is fixedly installed at the bottom of the seat plate 204. The output end of the lifting cylinder 205 is fixedly connected to the mounting frame 301. The lifting cylinder 205 drives the mounting frame 301 and the roller coating mechanism 3 to move up and down as a whole, and cooperates with the transverse guide rail 203 to drive the roller coating mechanism 3 to move horizontally as a whole, thereby realizing flexible adjustment of the position of the roller coating mechanism 3 to meet the coating needs of objects of different sizes.

[0025] See also Figure 8 In order to support the robot body as a whole, a plurality of foot plates 202 are fixedly connected to the bottom of the support frame 201, and a plurality of driving rollers 210 are rotatably installed on the bottom edge of the foot plates 202. By driving the rotation of the driving rollers 210, the robot body can be driven to move freely when the base 101 is not in use, so as to meet the needs of large-area spraying.

[0026] The present application sets up a base 101 to facilitate placing objects on the base 101 for roller coating operation; to achieve the connection between the robot body and the base 101; please refer to Figure 7A plurality of limiting grooves 102 are provided on the top of the base 101, and the limiting grooves 102 are respectively arranged corresponding to the plurality of foot plates 202. Roller grooves 103 are provided on the inner wall edges of the plurality of limiting grooves 102, and the roller grooves 103 are arranged corresponding to the driving rollers 210. To facilitate the transportation and movement of the entire device, lifting handles 106 are fixedly connected to both ends of the top of the base 101.

[0027] See also Figure 8 In order to detect the horizontal state of the robot body, a storage cavity is opened in the middle of several foot plates 202, and a positioning block 206 is slidably connected to the inner wall of the storage cavity. A displacement sensor 208 is fixedly installed at one end of the inner wall of the storage cavity, and a reset spring 209 is fixedly connected to the top of the positioning block 206. When the readings of each displacement sensor 208 are consistent, it is judged that the posture of the robot body is horizontal and the rolling operation can be performed.

[0028] See also Figure 7 In order to improve the limiting ability of the robot body and improve its position stability when installed on the base 101, a locking plate 104 is slidably connected to one side of several limiting grooves 102, and a positioning hole 207 is opened in the middle of the positioning block 206. One end of the locking plate 104 is engaged with the positioning hole 207, and the other end of the locking plate 104 is fixedly connected to the pull-out plate 105.

[0029] In this working mode, when the present invention is used, the object to be coated (hereinafter referred to as the object) is first placed on the base 101, and the mounting frame 301 is driven downward by the lifting cylinder 205 until the coating roller 3027 contacts the object, and the coating pump 408 is started to extract the coating in the coating box 407 and send it into the cavity of the feeding collecting plate 402 through the feeding main pipe 410, and then sent out by a plurality of feeding pipes 3034, and sent out through the feeding pipes 3034. The paint is sent to the coating roller 3027 through the diverter plate 3032, and at the same time, the reflux pump 405 is started to suck the excess paint through the diverter pipe 3037 and the reflux suction cup 3036, and then drawn by each reflux pipe 3035 and sent to the reflux collecting plate 403, and then sent to the filter 404 through the reflux main pipe 409 for filtration, and then sent back to the paint box 407 for standby; then, the transverse guide rail 203 drives the rolling coating mechanism 3 to move as a whole, so as to realize the rolling coating operation on the entire object.

[0030] The second working mode is for objects with a larger area. The base 101 is not used. That is, the robot body is placed directly on the object (taking the ground as an example). Fig. 9 shown.

[0031] In this working mode, the positioning blocks 206 on each foot plate 202 are pushed out by the return spring 209 and contact the ground. When the ground is flat, the movement distances of the positioning blocks 206 detected by the displacement sensors 208 are equal, and the rolling operation is performed at this time; the driving roller 210 drives the robot body as a whole to move autonomously along the ground to achieve rolling coating of the entire ground. The specific working process of the rolling mechanism 3 and the translation mechanism 2 is consistent with the first working mode; after use, the robot body is combined with the base 101 to facilitate the transportation and movement of the entire device. The assembly method is: align each foot plate 202 with each limiting groove 102 and put it in. At this time, the driving roller 210 is placed in each roller groove 103 accordingly. The positioning block 206 is pushed out by the return spring 209, and each locking plug plate 104 is inserted from the side of the base 101. The locking plug plates 104 are inserted into the positioning holes 207 to limit the positioning block 206 and each foot plate 202; then the entire device is moved by pulling the handle 106.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A roller coating robot with surface adaptive capability, characterized in that: The invention comprises a coating mechanism (3) and a translation mechanism (2) for driving the coating mechanism (3) to move in parallel with the coating mechanism (3); the coating mechanism (3) comprises a mounting frame (301), a plurality of adaptive coating units (302) are fixedly mounted on the bottom of the mounting frame (301), the adaptive coating units (302) comprise an adjustment frame (3021), a roller frame (3026) is slidably connected to the bottom of the adjustment frame (3021), coating rollers (3027) are rotatably connected to both sides of the roller frame (3026), a linear motor (3022) is fixedly mounted on the middle of the inner wall of the adjustment frame (3021), an adjustment rod (3023) is fixedly connected to the output end of the linear motor (3022), an adjustment groove is provided on the bottom of the adjustment rod (3023), and the top of the roller frame (3026) is rotatably connected to the adjustment groove. The inner wall of the adjusting groove is slidably connected, one end of the inner wall of the adjusting groove is fixedly connected to a pressure sensor (3024), and the top of the roller frame (3026) is fixedly connected to a push spring (3025); the coating roller (3027) is driven by the linear motor (3022) to descend and contact the object to be coated, so that the reading of the pressure sensor (3024) reaches a preset value; during the coating process, when the pressure value of the pressure sensor (3024) decreases, the linear motor (3022) drives the adjusting rod (3023) to press downward; when the pressure value of the pressure sensor (3024) increases, the linear motor (3022) drives the adjusting rod (3023) to move upward, so that the pressure sensor (3024) returns to the preset value, thereby ensuring stable contact between each coating roller (3027) and the object to be coated, and meeting the coating needs of different curved surface shapes and positions.

2. A roller coating robot with surface adaptive capability according to claim 1, characterized in that: A paint conveying assembly (303) for conveying paint onto the coating roller (3027) is arranged above the coating roller (3027), the paint conveying assembly (303) comprising a cover plate (3031), a feeding pipe (3034) being fixedly connected to the middle of the cover plate (3031), a diverter plate (3032) being fixedly connected to the bottom of the feeding pipe (3034), and a diverter hole being provided at the bottom of the diverter plate (3032).

3. A roller coating robot with surface adaptive capability according to claim 2, characterized in that: A reflux pipe (3035) is fixedly connected to one side of the cover plate (3031), one end of the reflux pipe (3035) is fixedly connected to a three-way pipe, two output ports of the three-way pipe are fixedly connected to diversion pipes (3037), one of the diversion pipes (3037) extends to one end of the inner cavity of the cover plate (3031), and one end of the other diversion pipe (3037) is fixedly connected to a reflux suction cup (3036), and a residual material scraper (3033) is provided on one side of the reflux suction cup (3036).

4. A coating robot with curved surface self-adaptation capability according to claim 3, characterized in that: A paint processing mechanism (4) is fixedly mounted on the top of the mounting frame (301), and the paint processing mechanism (4) comprises a mounting cover plate (401), a paint box (407) is fixedly connected to the middle of the inner wall of the mounting cover plate (401), a filling port is provided on the top of the paint box (407), a reflux pump (405) is fixedly connected to one side of the inner wall of the mounting cover plate (401), an input end of the reflux pump (405) is fixedly connected to a reflux main pipe (409), an output end of the reflux pump (405) is communicated with the paint box (407), a paint pump (408) is fixedly mounted on one side of the paint box (407), and an output end of the paint pump (408) is fixedly connected to a feeding main pipe (410); a filter (404) is fixedly mounted in the middle of the reflux main pipe (409).

5. The roller coating robot with curved surface self-adaptation capability according to claim 4, characterized in that: One end of the feeding main pipe (410) is fixedly connected to the feeding collecting plate (402), the tops of a plurality of the feeding pipes (3034) are fixedly connected to the bottom of the feeding collecting plate (402), the bottom of the reflux main pipe (409) is fixedly connected to the reflux collecting plate (403), and the tops of a plurality of the reflux pipes (3035) are fixedly connected to the bottom of the reflux collecting plate (403).

6. The roller coating robot with surface adaptive capability according to claim 1, characterized in that: The translation mechanism (2) comprises a support frame (201), a transverse guide rail (203) is fixedly mounted in the middle of the support frame (201), a seat plate (204) is slidably mounted on the inner wall of the transverse guide rail (203), a lifting cylinder (205) is fixedly mounted on the bottom of the seat plate (204), and an output end of the lifting cylinder (205) is fixedly connected to the mounting frame (301).

7. The coating robot with curved surface self-adaptation capability according to claim 6, characterized in that: A plurality of foot plates (202) are fixedly connected to the bottom of the support frame (201), and a plurality of driving rollers (210) are rotatably mounted on the bottom edges of the foot plates (202).

8. The roller coating robot with curved surface self-adaptation capability according to claim 7, characterized in that: A base (101) is provided below the translation mechanism (2), a plurality of limit grooves (102) are provided on the top of the base (101), the plurality of limit grooves (102) are respectively provided corresponding to a plurality of foot plates (202), a plurality of roller grooves (103) are provided on the inner wall edges of the plurality of limit grooves (102), the roller grooves (103) are provided corresponding to the driving roller (210).

9. The coating robot with curved surface self-adaptation capability according to claim 8, characterized in that: A storage cavity is provided in the middle of a plurality of the foot plates (202), a positioning block (206) is slidably connected to the inner wall of the storage cavity, a displacement sensor (208) is fixedly mounted on one end of the inner wall of the storage cavity, and a return spring (209) is fixedly connected to the top of the positioning block (206).

10. The roller coating robot with curved surface self-adaptation capability according to claim 9, characterized in that: A locking plate (104) is slidably connected to one side of a plurality of the limiting grooves (102), a positioning hole (207) is provided in the middle of the positioning block (206), and the locking plate (104) is snap-fitted and connected to the positioning hole (207).

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