Composite ceramic coating surface micro-pit preparation device

Abstract

The invention relates to the technical field of coating surface micro-pit preparation, and discloses a composite ceramic coating surface micro-pit preparation device which comprises a bottom plate and further comprises an L-shaped frame, an L-shaped support, a first support, a second support, a third support, a fourth support and a fourth support, and the vertical edge of the L-shaped frame is fixedly installed at the top of the bottom plate; the micro-pit etching assembly is arranged on the transverse edge of the L-shaped frame, and the micro-pit etching assembly is used for etching the composite ceramic coating; the transferring assembly is arranged at the top of the bottom plate, and the transferring assembly is used for transferring the pulverized coal pipeline coated with the composite ceramic coating to prepare the micro pit; and the detection assembly is arranged at the top of the bottom plate, and the detection assembly is used for detecting whether micro pits in the surface of the pulverized coal pipeline are punctured or not. According to the equipment, after the micro-pits are etched in the pulverized coal pipeline coated with the composite ceramic coating, the micro-pits can be automatically detected, the situation that the composite ceramic coating is punctured, and the protection effect on the pulverized coal pipeline is poor is avoided, and then the micro-pit quality of the equipment on the pulverized coal pipeline is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating surface micro-pit preparation, in particular to a composite ceramic coating surface micro-pit preparation device. Background Art

[0002] Pulverized coal pipelines are mainly used for the transportation of pulverized coal. Pulverized coal pipelines are generally made of steel materials. Pulverized coal pipelines are essential to ensure the stable operation of the system and extend the service life of the equipment. Therefore, composite ceramic coatings are required for pulverized coal pipelines. In addition, with the deepening of human understanding of surface microscopic physical and chemical phenomena, surface microstructures, including surface micropits with a certain size and arrangement, can achieve friction reduction, anti-wear and anti-adhesion performance improvements. Laser processing has the advantage of being able to quickly and easily achieve micro-surface processing of workpieces without contact.

[0003] For example, a device for preparing micro-pits on the surface of a ceramic coating disclosed in the patent with announcement number CN216607638U can use a laser to etch micro-pits on a composite ceramic coating, but it does not have the function of detecting whether the composite ceramic coating is punctured after etching, which reduces the effect of use. Therefore, it is urgent to design a device for preparing micro-pits on the surface of a composite ceramic coating. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a device for preparing micro-pits on the surface of a composite ceramic coating.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A device for preparing micro-pits on the surface of a composite ceramic coating, comprising a bottom plate, a collecting box for receiving a coal powder pipeline is placed on the top of the bottom plate, and further comprising: L-shaped frame, the vertical side of the L-shaped frame is fixedly installed on the top of the base plate; A micro-pit etching assembly, which is arranged on the horizontal side of the L-shaped frame and is used for etching the composite ceramic coating; A transfer assembly is arranged on the top of the bottom plate and is used to transfer the pulverized coal pipeline coated with the composite ceramic coating to prepare micro-pits; A detection component is arranged on the top of the base plate and is used to detect whether micro-pits on the surface of the pulverized coal pipeline are penetrated.

[0006] As a further technical solution of the present invention, the rotating assembly includes: a first side plate and a second side plate, a first side plate and a second side plate are symmetrically installed vertically and fixedly mounted on the top of the bottom plate, a first rotating rod is rotatably mounted on the side of the first side plate, and a second rotating rod is fixedly mounted on the side of the second side plate, the first side plate is fixedly mounted on the corresponding end of the first rotating rod, and the second side plate is rotatably mounted on the corresponding end of the second rotating rod, and four paddles evenly distributed in a ring shape are fixedly mounted on the surface of the second side plate.

[0007] As a further technical solution of the present invention, four annular evenly distributed grooves are fixed between the first side plate and the second side plate, four annular evenly distributed turntables are rotatably installed on the side of the first side plate, and four annular evenly distributed first gears are rotatably installed on the other side of the first side plate, each first gear is fixedly connected to the corresponding turntable through a connecting shaft, and toothed belts are sleeved on the surfaces of the four first gears.

[0008] As a further technical solution of the present invention, a groove plate is fixedly sleeved on the surface of the second rotating rod, and a folding groove is opened on the surface of the groove plate. The folding groove consists of a first arc groove, a second arc groove and two oblique grooves, and the two oblique grooves are connected end to end with the first arc groove and the second arc groove. Four movable plates evenly distributed in a ring shape are arranged on the side of the second side plate, and a sliding column is rotatably installed on the side of each movable plate. The end of the sliding column passes through the second side plate, and the surface of the sliding column is slidably arranged in the second side plate through a spline, and a fixed rod is fixedly installed on the end surface of the sliding column, and the ends of the four fixed rods are slidably installed in the folding groove.

[0009] As a further technical solution of the present invention, a first motor is installed on the side of the first side plate, and the output shaft of the first motor is installed at the center of the end face of the first rotating rod. The four first gears are all made of conductive materials. A second motor is also installed on the side of the first side plate, and the top surface of the first gear located below is meshed with a second gear made of non-conductive material, and the output shaft of the second motor is installed at the center of the side face of the second gear.

[0010] As a further technical solution of the present invention, the detection component includes: a detection plate, which is horizontally fixedly installed on the top of the base plate, and a U-shaped copper plate with its own power supply is fixedly installed on the bottom of the detection plate, and an L-shaped copper rod is fixedly installed on the corresponding vertical side of the U-shaped copper plate, and when the L-shaped copper rod contacts the first gear, the L-shaped copper rod slides between the first gear.

[0011] As a further technical solution of the present invention, a plurality of detection probes evenly distributed in a straight line are arranged on one side of the detection board, and the ends of the detection probes pass through the detection board, a copper sheet is fixedly installed on the ends of the detection probes, the surfaces of the detection probes and the inner wall of the detection board are slidingly connected by a spline, a sleeve is fixedly sleeved on the surface of each detection probe, and a first spring is sleeved on the surface of the detection probe, and both ends of the first spring are respectively installed on the opposite surfaces of the sleeve and the detection board.

[0012] As a further technical solution of the present invention, a strip plate is arranged at the bottom of the horizontal side of the U-shaped copper plate, a plurality of partitions evenly distributed in a straight line are fixed on the side of the strip plate, and a ramp plate is fixed at the end of the strip plate. When the paddle plate and the slope on the ramp plate contact, the paddle plate slides between the slope on the ramp plate.

[0013] As a further technical solution of the present invention, a slide groove is opened on the side of the detection plate, an L-shaped block is fixedly installed on the side of the strip plate, the horizontal side of the L-shaped block is slidably installed inside the slide groove, and a spring rod is fixed at the end of the slide groove, the telescopic end of the spring rod is installed on the side of the L-shaped block, and a plurality of alarms evenly distributed in a straight line are installed on the side of the detection plate, and each alarm is electrically connected to the U-shaped copper plate and the corresponding copper sheet.

[0014] As a further technical solution of the present invention, the micro-pit etching component includes: an electric slide, which is horizontally arranged below the horizontal side of the L-shaped frame, a laser head is installed at the output end of the electric slide, and two symmetrically arranged electric telescopic rods are installed on the top of the horizontal side of the L-shaped frame, and the output ends of the two electric telescopic rods are both installed on the top of the electric slide.

[0015] The beneficial effects of the present invention are: Firstly, the present invention, through the arrangement of the detection component and the micro-pit etching component, can automatically detect the micro-pits after etching the micro-pits on the pulverized coal pipeline coated with the composite ceramic coating, thereby avoiding the composite ceramic coating being punctured, resulting in a poor protective effect on the pulverized coal pipeline, thereby improving the micro-pit quality of the pulverized coal pipeline by the device; Secondly, the present invention can transfer the coal powder pipeline through the setting of the transfer component and the micro-pit etching component, ensuring that the etching micro-pits and detection of the coal powder pipeline are carried out simultaneously, ensuring the efficiency of the coal powder pipeline micro-pits, and thus improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a device for preparing micro-pits on the surface of a composite ceramic coating proposed by the present invention; Figure 2 This is a rear view structural schematic diagram of a device for preparing micro-pits on the surface of a composite ceramic coating proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a composite ceramic coating surface micro-pit preparation device proposed by the present invention, with the bottom plate removed; Figure 4 This is a schematic diagram of the structure of a composite ceramic coating surface micro-pit preparation device proposed by the present invention after removing the L-shaped frame; Figure 5 This is a schematic diagram of the structure of a detection probe and a detection plate of a device for preparing micro-pits on the surface of a composite ceramic coating proposed by the present invention; Figure 6 This is a schematic diagram of the connection structure of the strip plate and the detection plate of a composite ceramic coating surface micro-pit preparation device proposed by the present invention; Figure 7 This is a schematic diagram of the slot plate structure of a device for preparing micro-pits on the surface of a composite ceramic coating proposed by the present invention.

[0017] In the figure: 1, bottom plate; 2, collecting box; 3, first side plate; 4, first side plate; 5, second side plate; 6, second side plate; 7, moving plate; 8, groove; 9, L-shaped frame; 10, electric telescopic rod; 11, groove plate; 12, sliding column; 13, fixed rod; 14, electric slide; 15, laser head; 16, turntable; 17, inclined groove; 18, first arc groove; 19, second arc groove; 20, detection plate; 21, dial plate; 22, first gear; 23, toothed belt; 24, second gear; 25, L-shaped copper rod; 26, detection probe; 27, sleeve plate; 28, first spring; 29, copper sheet; 30, U-shaped copper plate; 31, strip plate; 32, partition; 33, alarm; 34, ramp plate; 35, slide; 36, L-shaped block; 37, spring rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] 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.

[0020] Please see attached Figure 1 -Attached Figure 7 A device for preparing micro-pits on the surface of a composite ceramic coating comprises a bottom plate 1, a collecting box 2 for receiving a coal powder pipeline is placed on the top of the bottom plate 1, and further comprises: an L-shaped frame 9, a micro-pit etching component, a transfer component and a detection component, wherein the vertical side of the L-shaped frame 9 is fixedly mounted on the top of the bottom plate 1, the micro-pit etching component is arranged on the horizontal side of the L-shaped frame 9, the micro-pit etching component is used to etch the composite ceramic coating, the transfer component is arranged on the top of the bottom plate 1, the transfer component is used to transfer the coal powder pipeline coated with the composite ceramic coating to prepare micro-pits, the detection component is arranged on the top of the bottom plate 1, and the detection component is used to detect whether the micro-pits on the surface of the coal powder pipeline are penetrated; As described above, the pulverized coal pipeline can be continuously self-checked after micro-pitting, thereby avoiding the situation where the use quality of the pulverized coal pipeline is reduced after the micro-pits are etched on the pulverized coal pipeline.

[0021] Please see attached Figure 1 -Attached Figure 7In a preferred embodiment, the rotating assembly includes: a first side plate 4 and a second side plate 5, a first side plate 3 and a second side plate 6 symmetrically arranged are vertically fixedly installed on the top of the bottom plate 1, a first rotating rod is rotatably installed on the side of the first side plate 3, and a second rotating rod is fixedly installed on the side of the second side plate 6, the first side plate 4 is fixedly installed on the corresponding end of the first rotating rod, and the second side plate 5 is rotatably installed on the corresponding end of the second rotating rod, four annularly evenly distributed dial plates 21 are fixed on the surface of the second side plate 5, four annularly evenly distributed grooves 8 are fixed between the first side plate 4 and the second side plate 5, four annularly evenly distributed rotating disks 16 are rotatably installed on the side of the first side plate 4, and four annularly evenly distributed first gears 22 are rotatably installed on the other side of the first side plate 4, each first gear 22 is fixedly connected to the corresponding rotating disk 16 through a connecting shaft, the surfaces of the four first gears 22 are sleeved with toothed belts 23, and the surface of the second rotating rod is fixedly sleeved with a groove plate 11, the groove A folding groove is provided on the surface of the disk 11, and the folding groove consists of a first arc groove 18, a second arc groove 19 and two inclined grooves 17, and the two inclined grooves 17 are connected end to end with the first arc groove 18 and the second arc groove 19. Four movable disks 7 are evenly distributed in an annular shape on the side of the second side disk 5, and a sliding column 12 is rotatably installed on the side of each movable disk 7. The end of the sliding column 12 passes through the second side disk 5, and the surface of the sliding column 12 is slidably arranged in the second side disk 5 through a spline. A fixed rod 13 is fixedly installed on the end surface of the sliding column 12, and the ends of the four fixed rods 13 are slidably installed in the folding groove. A first motor is installed on the side of the first side plate 3, and the output shaft of the first motor is installed at the center of the end face of the first rotating rod. The four first gears 22 are all made of conductive material. A second motor is also installed on the side of the first side plate 3, and the top surface of the first gear 22 located below is meshed with a second gear 24 made of non-conductive material, and the output shaft of the second motor is installed at the center of the side of the second gear 24; Furthermore, the rotation of the first side plate 4 and the second side plate 5 drives the pulverized coal pipeline to rotate and simultaneously clamps the pulverized coal pipeline, thereby ensuring the stability of subsequent etching of micro-pits and detection.

[0022] Please see attached Figure 1 -Attached Figure 7In a preferred embodiment, the detection component includes: a detection board 20, the detection board 20 is horizontally fixedly installed on the top of the bottom plate 1, and a U-shaped copper plate 30 with its own power supply is fixedly installed at the bottom of the detection board 20, and an L-shaped copper rod 25 is fixedly installed on the vertical side corresponding to the U-shaped copper plate 30. When the L-shaped copper rod 25 contacts the first gear 22, the L-shaped copper rod 25 slides between the first gear 22. A plurality of detection probes 26 uniformly distributed in a straight line are arranged on one side of the detection board 20, and the ends of the detection probes 26 pass through the detection board 20. A copper sheet 29 is fixedly installed at the ends of the detection probes 26. The surface of the detection probe 26 and the inner wall of the detection board 20 are connected by spline sliding. A sleeve 27 is fixedly sleeved on the surface of each detection probe 26, and a first spring 28 is sleeved on the surface of the detection probe 26. The first spring 2 The two ends are respectively installed on the opposite sides of the sleeve disc 27 and the detection plate 20. A strip plate 31 is arranged at the bottom of the horizontal side of the U-shaped copper plate 30. A plurality of partitions 32 evenly distributed in a straight line are fixed on the side of the strip plate 31. A ramp plate 34 is fixed at the end of the strip plate 31. When the ramps on the dial plate 21 and the ramp plate 34 contact, the dial plate 21 slides between the ramps on the ramp plate 34. A slide groove 35 is opened on the side of the detection plate 20. An L-shaped block 36 is fixedly installed on the side of the strip plate 31. The L-shaped block 36 is slidably installed inside the slide groove 35 on the horizontal side, and a spring rod 37 is fixed at the end of the slide groove 35. The telescopic end of the spring rod 37 is installed on the side of the L-shaped block 36. A plurality of alarms evenly distributed in a straight line are installed on the side of the detection plate 20. Each alarm 33 is electrically connected to the U-shaped copper plate 30 and the corresponding copper sheet 29. Preferably, if the composite ceramic coating is penetrated, the detection probe 26 will directly contact the coal powder pipeline, and further the U-shaped copper plate 30, copper sheet 29, L-shaped copper rod 25, alarm 33 and steel coal powder pipeline will form a loop, so that the alarm 33 alarms, prompting the staff that the coal powder pipeline etching is unqualified. If the composite ceramic coating is not penetrated, the alarm 33 will not work.

[0023] Please see attached Figure 1 -Attached Figure 3 In a preferred embodiment, the micro-pit etching assembly includes: an electric slide 14, the electric slide 14 is horizontally arranged below the horizontal side of the L-shaped frame 9, a laser head 15 is installed at the output end of the electric slide 14, and two symmetrically arranged electric telescopic rods 10 are installed at the top of the horizontal side of the L-shaped frame 9, and the output ends of the two electric telescopic rods 10 are both installed on the top of the electric slide 14; Specifically, the electric telescopic rod 10 and the electric slide 14 cooperate to move the laser head 15 to etch micro-pits on the surface of the coal powder pipeline.

[0024] The working principle of the present invention is as follows: first, the pulverized coal pipeline is placed inside the uppermost groove 8, and then the first motor is started to drive the first rotating rod to rotate ninety degrees. The rotation of the first rotating rod drives the first side plate 4 to rotate. The rotation of the first side plate 4 drives the four grooves 8, the rotating plate 16, the movable plate 7, the dial plate 21, the slide column 12 and the second side plate 5 to rotate. Then the pulverized coal pipeline placed on the groove 8 will also rotate together. The rotation of the movable plate 7 drives the fixed rod 13 to revolve around the first rotating rod as the center of the circle. Due to the setting of the folding groove, the fixed rod 13 will move toward the direction close to the second side plate 5 when passing through the corresponding inclined groove 17. The movement of the fixed rod 13 drives the slide column 12 to move. The movement of the slide column 12 drives the movable plate 7 to move, so that the placed pulverized coal pipeline can be clamped in cooperation with the rotating plate 16. When the fixed rod 13 enters the second arc groove 19 from the inclined groove 17, the slide column 12 will no longer move horizontally. When the clamped pulverized coal pipeline is transferred to the etching station, micro-pits can be etched on the surface of the pulverized coal pipeline through the electric telescopic rod 10, the electric slide 14 and the laser head 15. In addition, the second motor is started synchronously to drive the second motor to work, and the second motor drives the second gear 24 to rotate. The rotation of the second gear 24 drives the first gear 22 meshed with it to rotate. Due to the setting of the toothed belt 23, the rotation of the first gear 22 drives the toothed belt 23 to rotate, and the rotation of the toothed belt 23 drives the other three first gears 22 to rotate. The rotation of the first gear 22 drives the turntable 16 to rotate, and the rotation of the turntable 16 can drive the clamped pulverized coal pipeline to rotate, so as to achieve comprehensive etching of the surface of the pulverized coal pipeline; After the micro-pits are etched on the coal powder pipeline, the first motor is rotated 90 degrees again, and the etched coal powder pipeline will be transferred to the detection station, and the second side plate 5 will also drive the corresponding dial plate 21 to contact the ramp block, so that the ramp block can move, and the movement of the ramp block drives the strip plate 31 to move, and the movement of the strip plate 31 drives the partition plate 32 to move. At this time, the partition plate 32 will no longer be located between the U-shaped copper plate 30 and the copper sheet 29, and then the second motor will drive the etched coal powder pipeline to rotate, and the detection probe 26 The etched micro-pits can be detected. If the composite ceramic coating is broken down, the detection probe 26 will directly contact the coal powder pipeline. Further, the U-shaped copper plate 30, the copper sheet 29, the L-shaped copper rod 25, the alarm 33 and the steel coal powder pipeline will form a loop, so that the alarm 33 alarms, reminding the staff that the coal powder pipeline etching is unqualified. If the composite ceramic coating is not broken down, the alarm 33 will not work, and the etched coal powder pipeline can be automatically detected, which is convenient, fast and accurate. After the pulverized coal pipeline is inspected, the first motor is started again to drive the pulverized coal pipeline to rotate, and the corresponding fixed rod 13 will enter the first arc groove 18 from the second arc groove 19 through the inclined groove 17, so as to realize the movement of the movable plate 7 away from the second side plate 5, and the pulverized coal pipeline after inspection is no longer clamped, and the pulverized coal pipeline after inspection will fall into the collecting box 2; In summary, the pulverized coal pipeline can be continuously self-checked after micro-pitting by reciprocating in sequence, thereby improving the use effect of the equipment.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for preparing micro-pits on the surface of a composite ceramic coating, comprising a bottom plate (1), a collecting box (2) for receiving a coal powder pipeline is placed on the top of the bottom plate (1), characterized in that: Also includes: An L-shaped frame (9), wherein the vertical side of the L-shaped frame (9) is fixedly mounted on the top of the base plate (1); A micro-pit etching component, the micro-pit etching component is arranged on the horizontal side of the L-shaped frame (9), and the micro-pit etching component is used to etch the composite ceramic coating; A transfer assembly, the transfer assembly being arranged on the top of the bottom plate (1), the transfer assembly being used to transfer the pulverized coal pipeline coated with the composite ceramic coating to prepare micro-pits; A detection component is arranged on the top of the bottom plate (1), and is used to detect whether micro-pits on the surface of the pulverized coal pipeline are penetrated.

2. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 1, characterized in that: The rotating assembly comprises: a first side plate (4) and a second side plate (5); a first side plate (3) and a second side plate (6) are vertically fixedly mounted on the top of the bottom plate (1) and are symmetrically arranged; a first rotating rod is rotatably mounted on the side of the first side plate (3); a second rotating rod is fixedly mounted on the side of the second side plate (6); the first side plate (4) is fixedly mounted on the corresponding end of the first rotating rod, and the second side plate (5) is rotatably mounted on the corresponding end of the second rotating rod; and four shifting plates (21) evenly distributed in an annular shape are fixedly mounted on the surface of the second side plate (5).

3. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 2, characterized in that: Four annularly evenly distributed grooves (8) are fixed between the first side disc (4) and the second side disc (5); four annularly evenly distributed rotating discs (16) are rotatably mounted on the side of the first side disc (4); and four annularly evenly distributed first gears (22) are rotatably mounted on the other side of the first side disc (4); each first gear (22) is fixedly connected to the corresponding rotating disc (16) via a connecting shaft; and toothed belts (23) are sleeved on the surfaces of the four first gears (22).

4. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 3, characterized in that: A groove plate (11) is fixedly sleeved on the surface of the second rotating rod, and a folding groove is opened on the surface of the groove plate (11), and the folding groove is composed of a first arc groove (18), a second arc groove (19) and two inclined grooves (17), and the two inclined grooves (17) are connected end to end with the first arc groove (18) and the second arc groove (19). Four circularly evenly distributed movable plates (7) are arranged on the side of the second side plate (5), and a sliding column (12) is rotatably installed on the side of each movable plate (7). The end of the sliding column (12) passes through the second side plate (5), and the surface of the sliding column (12) is slidably arranged in the second side plate (5) through a spline. A fixed rod (13) is fixedly installed on the end surface of the sliding column (12), and the ends of the four fixed rods (13) are slidably installed in the folding groove.

5. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 4, characterized in that: A first motor is mounted on the side of the first side plate (3), the output shaft of the first motor is mounted at the center of the end face of the first rotating rod, the four first gears (22) are all made of conductive material, a second motor is also mounted on the side of the first side plate (3), and a second gear (24) made of non-conductive material is meshed on the top surface of the first gear (22) located below, and the output shaft of the second motor is mounted at the center of the side of the second gear (24).

6. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 5, characterized in that: The detection assembly comprises: a detection plate (20), the detection plate (20) being fixedly mounted horizontally on the top of the bottom plate (1), and a U-shaped copper plate (30) with a power supply being fixedly mounted on the bottom of the detection plate (20), an L-shaped copper rod (25) being fixedly mounted on the corresponding vertical side of the U-shaped copper plate (30), and when the L-shaped copper rod (25) and the first gear (22) are in contact, the L-shaped copper rod (25) and the first gear (22) slide therebetween.

7. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 6, characterized in that: A plurality of detection probes (26) evenly distributed in a straight line are arranged on one side of the detection plate (20), and the ends of the detection probes (26) pass through the detection plate (20), and a copper sheet (29) is fixedly mounted on the ends of the detection probes (26), and the surfaces of the detection probes (26) and the inner wall of the detection plate (20) are slidably connected via splines, and a sleeve (27) is fixedly sleeved on the surface of each detection probe (26), and a first spring (28) is sleeved on the surface of the detection probe (26), and two ends of the first spring (28) are respectively mounted on opposite surfaces of the sleeve (27) and the detection plate (20).

8. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 7, characterized in that: A strip plate (31) is provided at the bottom of the horizontal side of the U-shaped copper plate (30), a plurality of partition plates (32) evenly distributed in a straight line are fixed to the side of the strip plate (31), and a ramp plate (34) is fixed to the end of the strip plate (31), and when the shift plate (21) and the ramp on the ramp plate (34) are in contact, the shift plate (21) and the ramp on the ramp plate (34) slide between them.

9. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 8, characterized in that: A slide groove (35) is provided on the side of the detection plate (20), an L-shaped block (36) is fixedly installed on the side of the strip plate (31), the L-shaped block (36) is slidably installed in the slide groove (35) at the horizontal side, and a spring rod (37) is fixed at the end of the slide groove (35), and the telescopic end of the spring rod (37) is installed on the side of the L-shaped block (36). A plurality of alarms (33) evenly distributed in a straight line are installed on the side of the detection plate (20), and each of the alarms (33) is electrically connected to the U-shaped copper plate (30) and the corresponding copper sheet (29).

10. The device for preparing micro-pits on the surface of a composite ceramic coating according to claim 9, characterized in that: The micro-pit etching assembly comprises: an electric slide (14), the electric slide (14) being horizontally arranged below the horizontal side of the L-shaped frame (9), a laser head (15) being installed at the output end of the electric slide (14), two symmetrically arranged electric telescopic rods (10) being installed at the top of the horizontal side of the L-shaped frame (9), and the output ends of the two electric telescopic rods (10) being installed at the top of the electric slide (14).

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