Coating calibration device

Abstract

The invention relates to the technical field of coating calibration, and provides a coating calibration device which comprises a workbench, a detection assembly is arranged at the top end of the workbench, the detection assembly comprises a supporting frame, the supporting frame is fixedly connected with the workbench, and a limiting clamping assembly is arranged in the middle of the top end of the workbench; a detected object is placed in the middle of the top end of the workbench, the driving piece is started to drive the conveying belt to move relatively, the conveying belt drives the clamping plates to get close to each other, and the clamping plates clamp and fix the object. During grinding, the second air cylinder drives the grinding piece and the protective cover to descend, the grinding piece grinds the object, and the protective cover shields a grinding area; and through the telescopic cover and the spring, articles of different specifications can be used for polishing, the clamping plate for clamping can shield the articles, and therefore the fragment diffusion area can be effectively limited through the protective cover, the telescopic cover and the clamping plate, and the cleanliness of a table top is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coating calibration, and in particular to a coating calibration device. Background Art

[0002] A coating calibration device is a specialized device or system used to calibrate, verify, or calibrate coating parameters or properties. It is widely used in industry, scientific research, and quality control to ensure that the thickness, uniformity, adhesion, or other properties of coatings (such as thin films, paints, and anti-corrosion coatings) meet standard requirements.

[0003] In existing technologies, the object to be tested is typically placed on a testing table. Before testing, the surface of the object is polished with a grinding device to smooth out any uneven surfaces and remove any dust adhering to the surface, thereby preventing deviations in the measurement data. However, during the polishing process, a certain amount of debris is generated, and any dust that originally adhered to the surface is also scattered. This flying debris and dust can easily contaminate the testing table. More importantly, during subsequent testing, the remaining debris on the table can interfere with the placement of the object, preventing it from being placed stably, which in turn affects the accuracy of the test results. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that during the grinding operation, a certain amount of debris will be generated, and the originally adhered dust will also fly everywhere. These flying debris and dust can easily cause contamination of the detection table. More importantly, during subsequent detection work, the debris remaining on the table will interfere with the placement of objects, making it impossible to place the objects stably, which in turn affects the accuracy of the detection results.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a coating calibration device, comprising a workbench, a detection assembly is provided at the top of the workbench, the detection assembly includes a support frame, the support frame is fixedly connected to the workbench, a limited clamping assembly is provided in the middle of the top of the workbench, a collection structure is provided on one side of the workbench, the collection structure includes a chip suction assembly and a chip blowing assembly, the limited clamping assembly includes a conveyor belt, the conveyor belt is slidably connected to both sides of the top of the workbench, the two ends of the conveyor belt are provided with driving parts, the sides of the conveyor belt away from each other are fixedly connected with a splint, and the splint is far away The bottom of the fixed end is slidably connected to another conveyor belt, and the inspection object is placed in the middle of the top of the workbench. The driving part is started to drive the conveyor belt to move relative to each other, and the conveyor belt drives the splints to approach each other, and the splints clamp and fix the object. When polishing, the polishing part and the protective cover are driven down by the second cylinder, and the polishing part polishes the object, while the protective cover blocks the polishing area and prevents debris from flying upward. Through the set telescopic cover and spring, objects of different specifications can be used for polishing, and the clamped splints can block the objects. Therefore, the protective cover, telescopic cover and splints can effectively limit the area of debris diffusion, thereby improving the cleanliness of the desktop.

[0006] As a preferred embodiment, the chip suction assembly includes a collection box, which is fixed on one side of the workbench, an air pump is fixed on the top of the collection box away from the workbench, one side of the air pump is fixedly connected to a first suction pipe, one end of the first suction pipe away from the air pump is fixedly passed through the collection box, the other side of the air pump is fixedly connected to a branch pipe, both ends of the branch pipe are fixedly connected to a second collection cover, and the second collection cover is fixed through both sides of the workbench close to the collection box.

[0007] As a preferred embodiment, a second suction pipe is fixedly connected to the middle of the branch pipe, and a first collecting cover is fixedly connected to the end of the second suction pipe away from the branch pipe. The first collecting cover is fixed to the middle of the top of the workbench close to the collection box. The middle of the first collecting cover is fixedly penetrated by the bottom end of the support frame. The air pump is started to generate suction in the branch pipe, so that the first jet pipe and the second jet pipe generate blowing force, and the second suction pipe connected thereto also generates suction. Therefore, the first collecting cover and the second collecting cover can absorb debris, and after the first jet pipe and the second jet pipe generate blowing force, they are blown out through the first jet head and the second jet head.

[0008] As a preferred embodiment, the chip blowing assembly includes a second air jet pipe, which is fixed at the middle of the bottom end of the workbench and one end is fixedly connected to the collection box. The end of the second air jet pipe away from the workbench is fixedly connected to the support frame. The second air jet pipe is located at the end that passes through the support frame and is fixedly connected to a second air jet head, and the second air jet head is fixedly connected to the support frame. The middle part of the second air jet pipe is fixedly connected to a connecting sleeve. When the splints are separated from each other, the second air jet head blows gas to blow the debris and dust within the range limited by the driving part toward the direction of the first collecting cover, and the first collecting cover collects the debris and dust, thereby cleaning the debris after grinding.

[0009] As a preferred embodiment, the chip blowing assembly also includes a first air jet pipe, which is fixed in the middle of the connecting sleeve, and the end of the first air jet pipe away from the connecting sleeve is fixedly passed through the two ends of the workbench away from the collecting box. The first air jet pipe is fixedly connected to a second connecting plate at one end through which it passes, and the second connecting plate is fixedly connected to the workbench, and the second connecting plate is fixedly connected to the first air jet head at an equidistant arrangement on the side away from the first air jet. During grinding, some debris will adhere to the side of the conveyor belt to which the splint is close when the splint is clamped. Therefore, after the splint is clamped, the driving member drives the splint to move to the inside of the workbench to the first air jet head, and the first air jet head blows the debris on the conveyor belt, and the debris is collected by the second collecting cover, thereby completing the cleaning.

[0010] As a preferred embodiment, a slide groove is opened in the middle of the top of the support frame, and the support frame is located in the middle of the slide groove and is rotatably connected to a screw rod. One end of the screw rod passes through the support frame, and the screw rod is located at the end through which it passes and is transmission-connected to a first motor. The first motor is fixed to the support frame, and the screw rod is located in the internal thread of the slide groove and is connected to a slider. When the detection, grinding and collection are completed, the first motor is started to drive the screw rod to rotate, and the screw rod drives the slider to move, and the slider moves along the slide groove.

[0011] As a preferred embodiment, a first cylinder is fixedly connected to one side of the bottom end of the slider, and a detection block is fixedly connected to the bottom end of the first cylinder. The polishing part moves to the other side to separate from the object, and the detection block moves to the top of the object. The first cylinder is started to drive the detection block close to the object, so that the detection block detects the object.

[0012] As a preferred embodiment, the bottom end of the slider is fixedly connected to a second cylinder on a side away from the first cylinder, the bottom end of the second cylinder is fixedly connected to a first connecting plate, and the bottom end of the first connecting plate is provided with a polishing piece. During polishing, the polishing piece and the protective cover are driven down by the second cylinder, and the polishing piece polishes the object.

[0013] As a preferred embodiment, a protective cover is fixedly connected to the outer side of the first connecting plate, a telescopic cover is slidably connected to the bottom end of the protective cover, and the top end of the telescopic cover is fixedly connected to equidistantly distributed springs, which are fixedly connected to the protective cover. The protective cover blocks the grinding area and prevents debris from flying upwards. By setting the telescopic cover and spring, objects of different specifications can be used for grinding.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. In the present invention, the inspection object is placed in the middle of the top of the workbench, the driving part is started to drive the conveyor belt to move relative to each other, the conveyor belt drives the clamps to approach each other, and the clamps clamp the object. When polishing, the polishing part and the protective cover are driven down by the second cylinder, and the polishing part polishes the object, while the protective cover blocks the polishing area and prevents debris from flying upward. Through the provision of the telescopic cover and the spring, objects of different specifications can be used for polishing, and the clamped clamps can block the objects. Therefore, the protective cover, the telescopic cover and the clamps can effectively limit the area of debris diffusion, thereby improving the cleanliness of the desktop.

[0016] 2. In the present invention, the air pump is started to generate suction in the branch pipe, so that the first air jet pipe and the second air jet pipe generate blowing force, and the second suction pipe connected thereto also generates suction. Therefore, the first collecting cover and the second collecting cover can absorb the debris. After the first air jet pipe and the second air jet pipe generate blowing force, the debris is blown out through the first air nozzle and the second air nozzle. When the splints are separated from each other, the second air nozzle blows gas to blow the debris and dust within the range restricted by the driving member toward the first collecting cover, and the first collecting cover collects the debris and dust, thereby cleaning the debris after grinding. During grinding, some debris will adhere to the side of the conveyor belt that is close to the splint when it is clamped. Therefore, after the splint is clamped, the driving member drives the splint to move to the inside of the workbench to the first air nozzle, and the first air nozzle blows the debris on the conveyor belt, and the debris is collected by the second collecting cover, thus completing the cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the left side structure of a coating calibration device provided by the present invention;

[0018] Figure 2 A schematic diagram of the right side structure of a coating calibration device provided by the present invention;

[0019] Figure 3 A schematic cross-sectional view of a coating calibration device provided by the present invention;

[0020] Figure 4 A schematic diagram of the workbench structure of a coating calibration device provided by the present invention;

[0021] Figure 5 A schematic structural diagram of a limit clamping assembly of a coating calibration device provided by the present invention;

[0022] Figure 6 A schematic diagram of the structure of a detection mechanism of a coating calibration device provided by the present invention;

[0023] Figure 7 A schematic diagram of the protective cover structure of a coating calibration device provided by the present invention;

[0024] Figure 8 A coating calibration device provided by the present invention Figure 7 A in the figure shows the enlarged structural diagram;

[0025] Figure 9 A schematic structural diagram of a chip suction assembly of a coating calibration device provided by the present invention;

[0026] Figure 10 A schematic structural diagram of a first collecting hood of a coating calibration device provided by the present invention;

[0027] Legend:

[0028] 1. Workbench; 21. Support frame; 22. Screw; 23. First motor; 24. Slider; 25. First cylinder; 26. Detection block; 27. Second cylinder; 28. Second connecting plate; 29. Grinding piece; 210. Protective cover; 211. Telescopic cover; 212. Spring; 31. Collection box; 311. Air pump; 312. First suction pipe; 313. Diverter pipe; 314. Second suction pipe; 315. First collection cover; 316. Second collection cover; 32. First jet pipe; 321. Second connecting plate; 322. First jet head; 33. Second jet pipe; 331. Connecting sleeve; 332. Second jet head; 41. Conveyor belt; 42. Driving member; 43. Clamp. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 - Figure 5The present invention provides a technical solution: a coating calibration device, comprising a workbench 1, a detection component is provided at the top of the workbench 1, the detection component includes a support frame 21, the support frame 21 is fixedly connected to the workbench 1, a limited clamping component is provided in the middle of the top of the workbench 1, a collection structure is provided on one side of the workbench 1, the collection structure includes a chip suction component and a chip blowing component, the limited clamping component includes a conveyor belt 41, the conveyor belt 41 is slidably connected to both sides of the top of the workbench 1, and a driving member 42 is provided at both ends of the conveyor belt 41. The driving member 42 includes a servo motor and a drive shaft (this is the existing technology and will not be elaborated here), and a splint 43 is fixedly connected to the side of the conveyor belt 41 away from each other, and the bottom of the splint 43 away from the fixed end is slidably connected to another conveyor belt 41.

[0031] like Figure 3 、 Figure 9 as well as Figure 10 As shown, the chip suction assembly includes a collection box 31, which is fixed to one side of the workbench 1, and an air pump 311 is fixed to the side of the top of the collection box 31 away from the workbench 1, and a first suction pipe 312 is fixedly connected to one side of the air pump 311, and the end of the first suction pipe 312 away from the air pump 311 is fixedly passed through the collection box 31, and the other side of the air pump 311 is fixedly connected to a branch pipe 313, and both ends of the branch pipe 313 are fixedly connected to a second collection cover 316, and the second collection cover 316 is fixedly passed through both sides of the workbench 1 close to the collection box 31, and the middle part of the branch pipe 313 is fixedly connected to the second suction pipe 314, and the end of the second suction pipe 314 away from the branch pipe 313 is fixedly connected to the first collection cover 315, and the first collection cover 315 is fixed to the middle part of the top of the workbench 1 close to the collection box 31, and the middle part of the first collection cover 315 is fixedly passed through by the bottom end of the support frame 21.

[0032] In this embodiment, the inspection object is placed in the middle of the top of the workbench 1, and the driving member 42 is started to drive the conveyor belt 41 to move relative to each other. The conveyor belt 41 drives the splints 43 to approach each other, and the splints 43 clamp and fix the object. When polishing, the polishing member 29 and the protective cover 210 are driven down by the second cylinder 27, and the polishing member 29 polishes the object, while the protective cover 210 blocks the polishing area and prevents debris from floating upward. Through the provision of the telescopic cover 211 and the spring 212, objects of different specifications can be used for polishing, and the clamped splints 43 can block the objects. Therefore, the protective cover 210, the telescopic cover 211 and the splints 43 can effectively limit the area of debris diffusion, thereby improving the cleanliness of the desktop.

[0033] like Figure 2 and Figure 6As shown, the chip blowing assembly includes a second air jet pipe 33, which is fixed in the middle of the bottom end of the workbench 1 and one end is fixedly connected to the collecting box 31, and the end of the second air jet pipe 33 away from the workbench 1 is fixedly passed through the support frame 21, and the second air jet pipe 33 is located at an end that passes through the support frame 21 and is fixedly connected to a second air jet head 332, and the second air jet head 332 is fixedly connected to the support frame 21, and the middle part of the second air jet pipe 33 is fixedly connected to a connecting sleeve 331, and the chip blowing assembly also includes a first air jet pipe 32, which is fixed in the middle part of the connecting sleeve 331, and the end of the first air jet pipe 32 away from the connecting sleeve 331 is fixedly passed through the two ends of the side of the workbench 1 away from the collecting box 31, and the end of the first air jet pipe 32 is fixedly connected to a second connecting plate 321, and the second connecting plate 321 is fixedly connected to the workbench 1, and the second connecting plate 321 is equidistantly fixedly connected to the first air jet head 322 on the side away from the first air jet pipe 32.

[0034] In this embodiment, the air pump 311 is started to generate suction in the branch pipe 313, so that the first air jet pipe 32 and the second air jet pipe 33 generate blowing force, and the second suction pipe 314 connected thereto also generates suction, so that the first collection cover 315 and the second collection cover 316 can absorb the debris, and after the first air jet pipe 32 and the second air jet pipe 33 generate blowing force, the debris is blown out through the first air jet head 322 and the second air jet head 332. When the clamping plates 43 are separated from each other, the second air jet head 332 blows gas to the area within the restriction of the driving member 42. The debris and dust are blown toward the first collecting hood 315, and the first collecting hood 315 collects the debris and dust, thereby cleaning the debris after grinding. During grinding, some debris will adhere to the side of the conveyor belt 41 that is close to the clamping plate 43 when it is clamped. Therefore, after the clamping plate 43 is clamped, the driving member 42 drives the clamping plate 43 to move to the inside of the workbench 1 to the first nozzle head 322, and the first nozzle head 322 blows the debris on the conveyor belt 41, and the debris is collected by the second collecting hood 316, thereby completing the cleaning.

[0035] like Figure 3 、 Figure 6 、 Figure 7 as well as Figure 8As shown, a slide groove is provided in the middle of the top of the support frame 21, and the support frame 21 is rotatably connected to a screw rod 22 at the middle of the slide groove. One end of the screw rod 22 passes through the support frame 21, and the screw rod 22 is located at one end through which a first motor 23 is connected in transmission. The first motor 23 is fixed to the support frame 21, and the screw rod 22 is located in the inner thread of the slide groove and is connected to a slider 24. One side of the bottom end of the slider 24 is fixedly connected to a first cylinder 25, and the bottom end of the first cylinder 25 is fixedly connected to a detection block 26. The bottom end of the slider 24 is away from the first cylinder 25. The side is fixedly connected to the second cylinder 27, the bottom end of the second cylinder 27 is fixedly connected to the first connecting plate 28, the bottom end of the first connecting plate 28 is provided with a grinding piece 29, the grinding piece 29 includes a servo motor, a rotating shaft and a grinding wheel (this is the existing technology and will not be described in detail here), the outer side of the first connecting plate 28 is fixedly connected to the protective cover 210, the bottom end of the protective cover 210 is slidably connected to the telescopic cover 211, the top of the telescopic cover 211 is fixedly connected to equidistantly distributed springs 212, and the springs 212 are fixedly connected to the protective cover 210.

[0036] In this embodiment, during grinding, the second cylinder 27 drives the grinding piece 29 and the protective cover 210 to descend, and the grinding piece 29 grinds the object, while the protective cover 210 blocks the grinding area and prevents debris from flying upward. By setting the telescopic cover 211 and the spring 212, objects of different specifications can be used for grinding. When the detection, grinding and collection are completed, the first motor 23 is started to drive the screw rod 22 to rotate, the screw rod 22 drives the slider 24 to move, the slider 24 moves along the slide groove, and the grinding piece 29 moves to the other side to separate from the object, and the detection block 26 moves to the top of the object, and the first cylinder 25 is started to drive the detection block 26 close to the object, so that the detection block 26 detects the object.

[0037] Working principle: First, place the test object in the middle of the top of the workbench 1, start the driving member 42 to drive the conveyor belt 41 to move relative to each other, the conveyor belt 41 drives the clamping plates 43 to move closer to each other, the clamping plates 43 clamp the object, start the air pump 311 to make the branch pipe 313 generate suction, so that the first jet pipe 32 and the second jet pipe 33 generate blowing force, and the second suction pipe 314 connected thereto also generates suction, so that the first collection cover 315 and the second collection cover 316 can absorb the debris, and after the first jet pipe 32 and the second jet pipe 33 generate blowing force, the first jet head 322 and the second jet head 323 are blown away by the first jet head 324. 32 blows out. When polishing, the polishing piece 29 and the protective cover 210 are driven down by the second cylinder 27, and the polishing piece 29 polishes the object, while the protective cover 210 blocks the polishing area and prevents debris from floating upward. Through the provided telescopic cover 211 and spring 212, objects of different specifications can be used for polishing, and the clamping plywood 43 can block the object. Therefore, the protective cover 210, the telescopic cover 211 and the plywood 43 can effectively limit the area of debris diffusion, improving the cleanliness of the desktop. During polishing, the first nozzle 322 and the second nozzle 332 are always blowing, so that dust The first collecting hood 315 is used to collect the debris and dust, and the debris is collected by the first collecting hood 315. When the grinding is completed, the clamping plates 43 are separated from each other, and the second nozzle 332 blows gas to blow the remaining debris and dust within the range limited by the driving member 42 toward the first collecting hood 315, and the first collecting hood 315 collects the debris and dust, thereby cleaning the debris after grinding. During grinding, some debris will adhere to the side of the conveyor belt 41 that is close to the clamping plate 43 when it is clamped. Therefore, after the clamping of the clamping plate 43 is completed, the driving member 42 drives the clamping plate 43 to move to the first nozzle 322 inside the workbench 1, and the first nozzle 32 2. Blow the debris on the conveyor belt 41, and the debris is collected by the second collecting cover 316, thereby completing the cleaning, and a collection box can be set at the bottom of the workbench 1 at both ends of the conveying direction of the conveyor belt 41 to collect the debris dropped when the conveyor belt 41 turns. After the detection, grinding and collection are completed, start the first motor 23 to drive the screw rod 22 to rotate, the screw rod 22 drives the slider 24 to move, the slider 24 moves along the slide groove, and the grinding piece 29 moves to the other side to separate from the object, and the detection block 26 moves to the top of the object, start the first cylinder 25 to drive the detection block 26 close to the object, so that the detection block 26 detects the object.

[0038] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A coating calibration device, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a detection component, the detection component includes a support frame (21), the support frame (21) is fixedly connected to the workbench (1), a limited clamping component is provided in the middle of the top of the workbench (1), a collecting structure is provided on one side of the workbench (1), the collecting structure includes a chip suction component and a chip blowing component, the limited clamping component includes a conveyor belt (41), the conveyor belt (41) is slidably connected to both sides of the top of the workbench (1), the two ends of the conveyor belt (41) are provided with a driving member (42), the side of the conveyor belt (41) away from each other is fixedly connected with a clamping plate (43), and the bottom of the clamping plate (43) away from the fixed end is slidably connected to another conveyor belt (41).

2. A coating calibration device according to claim 1, characterized in that: The chip suction assembly comprises a collection box (31), the collection box (31) is fixed on one side of the workbench (1), an air pump (311) is fixed on the top of the collection box (31) away from the workbench (1), a first suction pipe (312) is fixedly connected to one side of the air pump (311), an end of the first suction pipe (312) away from the air pump (311) is fixedly passed through the collection box (31), the other side of the air pump (311) is fixedly connected to a branch pipe (313), both ends of the branch pipe (313) are fixedly connected to a second collection cover (316), and the second collection cover (316) is fixedly passed through both sides of the workbench (1) close to the collection box (31).

3. A coating calibration device according to claim 2, characterized in that: The middle of the branch pipe (313) is fixedly connected to a second suction pipe (314), and one end of the second suction pipe (314) away from the branch pipe (313) is fixedly connected to a first collection cover (315). The first collection cover (315) is fixed to the middle of the top of the workbench (1) near the collection box (31), and the middle of the first collection cover (315) is fixedly penetrated by the bottom end of the support frame (21).

4. A coating calibration device according to claim 1, characterized in that: The chip blowing assembly comprises a second air jet pipe (33), the second air jet pipe (33) is fixed at the middle of the bottom end inside the workbench (1), and one end is fixedly connected to the collecting box (31), the end of the second air jet pipe (33) away from the workbench (1) is fixedly passed through the support frame (21), the end of the second air jet pipe (33) passing through the support frame (21) is fixedly connected to a second air jet head (332), and the second air jet head (332) is fixedly connected to the support frame (21), and the middle part of the second air jet pipe (33) is fixedly connected to a connecting sleeve (331).

5. A coating calibration device according to claim 4, characterized in that: The chip blowing assembly further comprises a first air jet pipe (32), the first air jet pipe (32) being fixed to the middle of the connecting sleeve (331), the end of the first air jet pipe (32) away from the connecting sleeve (331) being fixedly passed through both ends of the side of the workbench (1) away from the collecting box (31), the first air jet pipe (32) being fixedly connected to a second connecting plate (321) at the end of the passing portion, the second connecting plate (321) being fixedly connected to the workbench (1), and the first air jet heads (322) being fixedly connected to the side of the second connecting plate (321) away from the first air jet pipe (32) at equal intervals.

6. A coating calibration device according to claim 1, characterized in that: A slide groove is provided in the middle of the top of the support frame (21), and the support frame (21) is rotatably connected to a screw rod (22) located in the middle of the slide groove. One end of the screw rod (22) passes through the support frame (21), and the screw rod (22) is transmission-connected to a first motor (23) at one end through which the screw rod (22) passes. The first motor (23) is fixedly arranged with the support frame (21), and the screw rod (22) is threadedly connected to a slider (24) inside the slide groove.

7. A coating calibration device according to claim 6, characterized in that: One side of the bottom end of the slider (24) is fixedly connected to a first cylinder (25), and the bottom end of the first cylinder (25) is fixedly connected to a detection block (26).

8. A coating calibration device according to claim 7, characterized in that: A second cylinder (27) is fixedly connected to the side of the bottom end of the slider (24) away from the first cylinder (25), a first connecting plate (28) is fixedly connected to the bottom end of the second cylinder (27), and a grinding piece (29) is provided at the bottom end of the first connecting plate (28).

9. A coating calibration device according to claim 8, characterized in that: A protective cover (210) is fixedly connected to the outer side of the first connecting plate (28); a telescopic cover (211) is slidably connected to the bottom end of the protective cover (210); and springs (212) distributed equidistantly are fixedly connected to the top end of the telescopic cover (211); the springs (212) are fixedly connected to the protective cover (210).

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