A grinding device for thermal spray coating

Abstract

The present invention relates to a technical field related to grinding processing, and specifically provides a grinding device for thermal spray coating, comprising: a rack magazine, a collecting moving mechanism is provided at the lower inner side of the rack magazine, a supporting mechanism is provided inside the rack magazine, a frame is fixedly installed above both ends of the rack magazine, a connecting plate is commonly installed between the two groups of the frames, a slide is provided on the outer side of the connecting plate, a driving propulsion mechanism is provided inside the slide, and a slide rod is slidably provided at both ends of the inner side of the slide, and a rotating shaft is rotatably inserted at the lower inner ends of the two slide rods, and the two rotating shafts are fixedly connected to a connecting seat at one end away from the slide rod, and a support block is fixedly installed on one side edge of the two connecting seats, which is rotatably installed with an annular shell corresponding to the inner side of the support block, a gear ring is fixedly installed on one side of the annular shell, and a meshing mechanism is provided on one side of the gear ring. The present invention can adapt to a variety of radians, and sufficient grinding can remove uneven spraying areas and reduce the loss of the grinding structure.

Description

Technical Field

[0001] The present invention relates to the technical field related to grinding processing, and in particular provides a grinding device for thermal spray coatings. Background Art

[0002] Thermal spraying is a surface treatment technology that melts or thermally decomposes the coating material at high temperatures and then sprays it onto the substrate surface using a high-speed gas stream to form a coating. It provides strong adhesion, wear resistance, and corrosion resistance, and is widely used in aerospace, energy, automotive, and other fields.

[0003] The purpose of grinding thermal spray coatings is to further improve the performance and surface quality of the coatings. Grinding can reduce the roughness and unevenness of the coating surface and improve the smoothness.

[0004] When grinding the coating sprayed on the surface of the arc tube, the coating thickness will be uneven due to uneven spraying, especially at the arc corners, it is difficult to ensure sufficient spraying, and the existing device has low adaptability during spraying, and the working efficiency is low. Therefore, we need to improve this. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to propose a grinding device for thermal spray coatings.

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] Preferably, the collecting and moving mechanism includes a bottom box which is connected and installed below the inner side of the rack bin, a cabinet is slidably installed below the outer side of the bottom box, and movable racks are symmetrically installed on both sides of the bottom box.

[0008] Preferably, the supporting mechanism includes inclined frames respectively installed on the inner walls of the rack bin, guide mechanisms are provided on the outer sides of both ends of the inclined frames, first cylinders are provided on both ends of the inner side of the inclined frames, and the telescopic ends of the two first cylinders are fixedly installed with abutments, a bottom rod is provided inside the rack bin, fixed seats are fixedly installed at both ends of the outer side of the bottom rod, and skew columns are fixedly installed on the upper surfaces of the two fixed seats, and arc tubes are provided between the butts and skew columns on the same side.

[0009] Preferably, the guide mechanism includes an arc-shaped rod fixedly mounted on the outside of one end of the inclined frame, one end of the arc-shaped rod is fixedly sleeved on the outside of the bottom rod, one side of the arc-shaped rod is fixedly connected to a rail frame, and a rail groove adapted to the arc-shaped guide mechanism is opened on the inner side of the rail frame.

[0010] Preferably, multiple groups of the arc-shaped guiding mechanisms include an L-shaped seat fixedly mounted on the inner wall of the connecting seat, a guide rod fixedly mounted on the inner lower surface of the L-shaped seat, a first spring sleeved on the outer side of the guide rod, an insertion rod slidably mounted on the outer side of the guide rod and below the first spring, a roller mounted on the inner lower end of the insertion rod, and the roller rolls inside the rail groove.

[0011] Preferably, the driving propulsion mechanism includes a slide slidably mounted on the outside of the connecting plate, a screw rod is threaded through the inner side of the slide, the screw rod is rotatably engaged with one group of frames, one end of the screw rod passes through the outside of the other group of frames and the end is connected to a first motor, and the first motor is fixedly mounted on the outside of the corresponding frame.

[0012] Preferably, the grinding mechanism includes a positioning rod slidably mounted on one side of the inner ring shell, and a plurality of positioning holes are provided on the upper surface of the positioning rod, one end of the positioning rod extends to the inner side of the ring shell and is fixedly mounted with side frames on both sides, a movable rod is slidably mounted on the inner sides of the two side frames, a second spring is sleeved on the outer side of the movable rod, a sliding seat is fixedly mounted on the end of the movable rod, one side of the sliding seat is slidably mounted on the outside of the side frame, a first grinding block is fixedly mounted on the side of the sliding seat away from the movable rod, a scraper is symmetrically mounted on one side of the first grinding block, a second grinding block is fixedly mounted on the end of the positioning rod, a U-shaped seat is fixedly mounted on one side of the ring shell, a positioning pin is threadedly inserted into the inner side of the U-shaped seat, and the lower end of the positioning pin extends to the inside of one of the positioning holes.

[0013] Preferably, the dust removal mechanism includes a T-shaped rod fixedly mounted on the side of the connecting seat away from the support block, a second cylinder is mounted on the inner side of the T-shaped rod, a U-shaped frame is fixedly mounted on the telescopic end of the second cylinder, an air pump is mounted on one side of the U-shaped frame, a sleeve is installed in communication with the output end of the air pump, a rubber ball is rotatably mounted on the inner side of the sleeve, and the rubber ball rolls and fits with the outer surface of the arc tube.

[0014] Preferably, the meshing mechanism includes a second motor fixedly mounted on one edge of the connecting seat, a gear is sleeved on the outer side of the output end of the second motor, and the gear is meshed with the ring gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By setting up the first cylinder and the tilted column, the arc tube can be placed between the inclined frame and the support rod for installation, which is convenient for subsequent grinding. Two ball bearings are set at the front end of the connecting seat to roll and engage on both sides of the arc tube, which can maintain the stability of the installation during grinding.

[0017] By cooperating with the gear ring arranged on one side edge of the annular shell and the meshing gear on the outside, the gear ring and the annular shell are driven by the second motor to rotate, thereby allowing the first grinding block and the second grinding block inside to grind the surface of the arc tube. Two elastically retractable first grinding blocks are arranged on both sides of the second grinding block, which can match the curvature of more arc tubes, resulting in more sufficient grinding. Scrapers are also arranged on both sides of the first grinding block, which can enhance the grinding force of the first grinding block while rotating and grinding, and scrape off the unevenly sprayed coating.

[0018] By arranging the grinding structure above the bottom box and the rack, the grinding waste can be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a connection diagram of the overall structure of the present invention from another angle;

[0021] Figure 3 This is a schematic diagram of the connection structure between the cabinet and the bottom box of the present invention;

[0022] Figure 4 Schematic diagram of the connection structure between the oblique frame and the bottom rod of the present invention;

[0023] Figure 5 Schematic diagram of the matching structure between the rail frame and the connecting seat of the present invention

[0024] Figure 6 Schematic diagram of the connection structure between the ring housing and the gear ring of the present invention;

[0025] Figure 7 A schematic diagram of the connection between the connecting seat and multiple sets of arc-shaped guide mechanisms of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection and separation structure between the arc tube, the stop seat and the crooked column of the present invention;

[0027] Figure 9For the present invention Figure 5 A in the middle is an enlarged schematic diagram;

[0028] Figure 10 For the present invention Figure 6 Enlarged schematic diagram of point B in the middle.

[0029] In the figure: 1, shelf; 2, bottom box; 3, mobile frame; 4, oblique frame; 5, frame; 6, curved rod; 7, bottom rod; 8, connecting plate; 9, slide; 10, slide rod; 11, first cylinder; 12, screw rod; 13, first motor; 14, stop; 15, fixed seat; 16, tilted column; 17, rail frame; 18, curved tube; 19, rail groove; 20, second cylinder; 21, connecting seat; 22, ring shell; 23, T-shaped rod; 24, positioning rod; 25, U-shaped seat ; 26. Ring gear; 27. Second motor; 28. Rotating shaft; 29. ​​Gear; 30. Locating pin; 31. First grinding block; 32. Second grinding block; 33. Insert rod; 34. L-shaped seat; 35. Roller; 36. Guide rod; 37. Support block; 38. First spring; 39. Air pump; 40. U-shaped frame; 41. Sleeve; 42. Rubber ball; 43. Scraper; 44. Side frame; 45. Sliding seat; 46. Second spring; 47. Movable rod; 48. Cabinet. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figures 1-10 The shown grinding equipment for thermal spray coatings includes: a frame 1, a collecting and moving mechanism is provided at the lower inner side of the frame 1, a supporting mechanism is provided at the inner side of the frame 1, a frame 5 is fixedly installed above both ends of the frame 1, a connecting plate 8 is commonly installed between the two groups of frames 5, a slide 9 is provided on the outer side of the connecting plate 8, a driving propulsion mechanism is provided on the inner side of the slide 9, slide rods 10 are slidably provided at both ends of the inner side of the slide 9, a rotating shaft 28 is rotatably inserted at the lower inner ends of the two slide rods 10, and the two rotating shafts 28 are fixedly connected to a connecting seat 21 at one end away from the slide rod 10, and a support block 37 is fixedly installed on one side edge of the two connecting seats 21, and an annular shell 22 is rotatably installed on the inner side of the corresponding support block 37, a gear ring 26 is fixedly installed on one side of the annular shell 22, and a meshing mechanism is provided on one side of the gear ring 26, a plurality of groups of arc-shaped guide mechanisms are provided on the inner wall of the connecting seat 21, grinding mechanisms are provided on both sides of the inner side of the annular shell 22, and a dust removal mechanism is provided on one side edge of the connecting seat 21 away from the support block 37.

[0033] As the slide 9 and the driving propulsion mechanism move, the slide rod 10 can cooperate with the rotating shaft 28 to be pulled upward, and then pass through multiple sets of arc-shaped guiding mechanisms at the connecting seat 21, causing the connecting seat 21 to move inside the supporting mechanism.

[0034] The collecting and moving mechanism includes a bottom box 2 which is connected and installed at the lower inner side of the rack 1, a cabinet 48 is slidably installed at the lower outer side of the bottom box 2, and a movable rack 3 is symmetrically installed on both sides of the bottom box 2. The bottom box 2 can guide the fallen waste chips to the inside of the cabinet 48. When the cabinet 48 is pulled out, the waste chips inside can be cleaned up in a centralized manner.

[0035] The supporting mechanism includes an oblique frame 4 respectively installed on the inner wall of the shelf bin 1, and a guide mechanism is provided on the outer side of both ends of the oblique frame 4, and a first cylinder 11 is provided on both ends of the inner side of the oblique frame 4. The telescopic ends of the two first cylinders 11 are fixedly installed with a stop 14, and a bottom rod 7 is provided inside the shelf bin 1, and fixed seats 15 are fixedly installed at both ends of the outer side of the bottom rod 7, and skew columns 16 are fixedly installed on the upper surfaces of the two fixed seats 15. The purpose of setting the skew columns 16 is to facilitate the installation of one end of the arc tube 18, and at the same time, the other end can also allow the first cylinder 11 and the stop 14 to be squeezed, so that the arc tube 18 is set between the oblique frame 4 and the bottom rod 7, and an arc tube 18 is provided between the stop 14 and the skew columns 16 on the same side.

[0036] The guide mechanism includes an arc-shaped rod 6 fixedly mounted on the outside of one end of the inclined frame 4, and one end of the arc-shaped rod 6 is fixedly sleeved on the outside of the bottom rod 7. A rail frame 17 is fixedly connected to one side of the arc-shaped rod 6, and a rail groove 19 is provided on the inside of the rail frame 17 to adapt to the arc-shaped guiding mechanism. The rail frame 17 and the rail groove 19 are both arranged in an arc shape, and move in conjunction with the later arc-shaped tube 18.

[0037] Multiple sets of arc-shaped guiding mechanisms include an L-shaped seat 34 fixedly mounted on the inner wall of the connecting seat 21, a guide rod 36 fixedly mounted on the inner lower surface of the L-shaped seat 34, a first spring 38 is sleeved on the outer side of the guide rod 36, an insertion rod 33 is slidably mounted on the outer side of the guide rod 36 and below the first spring 38, a roller 35 is mounted on the inner lower end of the insertion rod 33, and the roller 35 rolls inside the rail groove 19. When the connecting seat 21 starts to move with the traction of the slide bar 10, the rotating shaft 28 that rotates with it drives the connecting seat 21 to move. As the shape of the rail frame 17 is guided, the corresponding insertion rod 33 below squeezes the first spring 38 to move inside the rail groove 19, and the connecting seat 21 also makes an arc motion like the rotating shaft 28.

[0038] The driving and propulsion mechanism includes a slide 9 slidably mounted on the outside of the connecting plate 8, and a screw rod 12 is inserted through the inner thread of the slide 9. The screw rod 12 rotates with one group of frames 5. One end of the screw rod 12 passes through the outside of the other group of frames 5 and the end is connected to a first motor 13. The first motor 13 is fixedly mounted on the outside of the corresponding frame 5. The first motor 13 drives the screw rod 12 to rotate, and the slide 9 threadedly engaged with the screw rod 12 drives the slide rods 10 at both ends to move. The slide rod 10 telescopes and moves inside the slide 9, cooperating with the slow movement of the roller 35.

[0039] The grinding mechanism includes a positioning rod 24 slidably mounted on one side of the inner ring shell 22. The upper surface of the positioning rod 24 is provided with a plurality of positioning holes. A U-shaped seat 25 is fixedly mounted on one side of the ring shell 22. A positioning pin 30 is threadedly inserted through the inner surface of the U-shaped seat 25. The lower end of the positioning pin 30 extends into one of the positioning holes.

[0040] By providing a positioning pin 30 on the outside of the positioning rod 24, the extension distance of the positioning rod 24 can be adjusted, so that the second grinding block 32 at the end can be adjusted outside the arc tube 18;

[0041] One end of the positioning rod 24 extends into the interior of the annular housing 22 and is fixedly mounted with side frames 44 on both sides. A movable rod 47 is slidably mounted on the inner sides of the two side frames 44. A second spring 46 is sleeved on the outer sides of the movable rod 47. A slide 45 is fixedly mounted on the end of the movable rod 47. One side of the slide 45 is slidably mounted on the outside of the side frame 44. A first grinding block 31 is fixedly mounted on the side of the slide 45 away from the movable rod 47. A scraper 43 is symmetrically mounted on one side of the first grinding block 31. A second grinding block 32 is fixedly mounted on the end of the positioning rod 24.

[0042] The side frames 44, movable rods 47 and second springs 46 are arranged on both sides of the second grinding block 32, which can cause the first grinding block 31 to be elastically retracted and extended, and can match the curvature of more arc-shaped tubes 18, so that the grinding is more sufficient. In addition, scrapers 43 are also arranged on both sides of the first grinding block 31, which can enhance the grinding force of the first grinding block 31 while rotating and grinding, and scrape off the unevenly sprayed coating.

[0043] The dust removal mechanism includes a T-shaped rod 23 fixedly mounted on the side of the connecting seat 21 away from the support block 37, a second cylinder 20 is installed on the inner side of the T-shaped rod 23, a U-shaped frame 40 is fixedly mounted on the telescopic end of the second cylinder 20, an air pump 39 is installed on one side of the U-shaped frame 40, and a sleeve 41 is installed in communication with the output end of the air pump 39. The air pump 39 can remove dust on the outside of the arc tube 18 at the front end and in the later stage through the nozzle at the sleeve 41. A rubber ball 42 is rotatably mounted on the inner side of the sleeve 41, and the rubber ball 42 rolls and fits with the outer surface of the arc tube 18. The rubber ball 42 can roll and fit on the outside of the arc tube 18, and cooperate with the extension and contraction of the second cylinder 20 during the movement of the connecting seat 21, and roll on the outside of the arc tube 18, thereby ensuring the stability of the installation of the arc tube 18.

[0044] The meshing mechanism includes a second motor 27 fixedly mounted on one side edge of the connecting seat 21. A gear 29 is mounted on the outer side of the output end of the second motor 27. The gear 29 is meshed with the ring gear 26. The second motor 27 can rotate by driving the gear 29, causing the gear 29 to drive the meshing ring gear 26 on one side to rotate, thereby allowing the annular housing 22 and the first and second grinding blocks 31 and 32 inside to rotate and grind on the outside of the arc tube 18.

[0045] Working principle: When in use, the worker first clamps one end of the arc tube 18 on the outside of the crooked column 16, and then the other end is pressed against the inner top of the arc tube 18 by the push seat 14 at the telescopic end of the first cylinder 11 at the oblique frame 4. After the arc tube 18 is fixed, the second motor 27 can be started. The second motor 27 drives the gear 29 to rotate, causing the gear ring 26 on one side to drive the ring shell 22 to rotate. The first grinding block 31 and the second grinding block 32 inside the ring shell 22 are fitted on both sides of the arc tube 18 under the adjustment of the worker, and then the positioning pin 30 is inserted into the positioning hole opened on the upper surface of the corresponding positioning rod 24. After the positioning rod 24 is fixed, the arc tube 18 can be ground. During the rotation process, the ring shell 22 is guided by the sliding rod 10 on one side of the connecting seat 21, and cooperates with the first motor 13 and the screw rod 12 to travel inside the rail frame 17, connecting seat 21 The multiple sets of elastically retractable rollers 35 on the inner wall roll correspondingly inside the rail groove 19. With the guidance of the arc-shaped rail frame 17, the connecting seat 21 is driven to slowly adjust the angle, so that the first grinding block 31 and the second grinding block 32 inside the ring shell 22 rotate and grind along the outside of the arc tube 18 from top to bottom, and a side frame 44 is provided between the first grinding block 31 and the second grinding block 32. When working with arc tubes 18 with different curvatures, the first grinding block 31 can be automatically retracted and extended by the slide 45 squeezing the second spring 46. As a result, the first grinding block 31 can adapt to the use of arc tubes 18 with more different curvatures, and a scraper 43 is provided on the front end of one side of the first grinding block 31. The scraper 43 can scrape the unevenly sprayed coating during rotation and grinding, thereby avoiding the rapid wear of the first grinding block 31 and the second grinding block 32.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. The components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various configurations.

[0047] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

Claims

1. A grinding device for a thermal spray coating, comprising: The rack (1) is characterized in that: a collecting and moving mechanism is provided at the lower inner side of the rack (1), a supporting mechanism is provided at the inner side of the rack (1), frames (5) are fixedly installed above both ends of the rack (1), a connecting plate (8) is commonly installed between the two groups of frames (5), a slide (9) is provided on the outer side of the connecting plate (8), a driving and propulsion mechanism is provided on the inner side of the slide (9), slide rods (10) are slidably provided at both ends of the inner side of the slide (9), a rotating shaft (28) is rotatably inserted at the lower inner end of the two slide rods (10), the ends of the two rotating shafts (28) away from the slide rod (10) are fixedly connected to a connecting seat (21), and a support block (37) is fixedly installed on one side edge of the two connecting seats (21). A ring shell (22) is rotatably mounted on the inner side of the support block (37), a gear ring (26) is fixedly mounted on one side of the ring shell (22), a meshing mechanism is provided on one side of the gear ring (26), a plurality of arc-shaped guide mechanisms are provided on the inner wall of the connecting seat (21), grinding mechanisms are provided on both sides of the inner side of the ring shell (22), a dust removal mechanism is provided on the edge of the side of the connecting seat (21) away from the support block (37), the supporting mechanism includes an inclined frame (4) respectively mounted on the inner wall of the rack (1), a guide mechanism is provided on the outer side of both ends of the inclined frame (4), a first cylinder (11) is provided on both ends of the inner side of the inclined frame (4), a stop seat (14) is fixedly mounted on the telescopic ends of the two first cylinders (11), and a There is a bottom rod (7), both ends of the bottom rod (7) are fixedly mounted with fixed seats (15), and the upper surfaces of the two fixed seats (15) are fixedly mounted with skew columns (16), and an arc tube (18) is provided between the support seat (14) and the skew column (16) on the same side. The guide mechanism includes an arc rod (6) fixedly mounted on the outside of one end of the inclined frame (4), and the lower end of the arc rod (6) is fixedly sleeved on the outside of the bottom rod (7). One side of the arc rod (6) is fixedly connected to a rail frame (17), and a rail groove (19) adapted to the arc guide mechanism is opened on the inner side of the rail frame (17). Multiple groups of the arc guide mechanisms include an L-shaped seat (34) fixedly mounted on the inner wall of the connecting seat (21), and the inner lower surface of the L-shaped seat (34) is fixed. A guide rod (36) is fixedly installed, and a first spring (38) is sleeved on the outside of the guide rod (36). An insertion rod (33) is slidably installed on the outside of the guide rod (36) and located below the first spring (38). A roller (35) is installed on the lower end of the inner side of the insertion rod (33). The roller (35) rolls inside the rail groove (19). The grinding mechanism includes a positioning rod (24) slidably installed on one side of the inner side of the ring shell (22). The upper surface of the positioning rod (24) is provided with multiple groups of positioning holes. One end of the positioning rod (24) extends to the inside of the ring shell (22) and side frames (44) are fixedly installed on both sides. A movable rod (47) is slidably installed on the inner side of the two side frames (44). The outer side of the movable rod (47) is sleeved with a second spring (46).A slide (45) is fixedly mounted on the end of the movable rod (47), and one side of the slide (45) is slidably mounted on the outside of the side frame (44). A first grinding block (31) is fixedly mounted on the side of the slide (45) away from the movable rod (47), and a scraper (43) is symmetrically mounted on one side of the first grinding block (31). A second grinding block (32) is fixedly mounted on the end of the positioning rod (24), and a U-shaped seat (25) is fixedly mounted on one side of the ring shell (22). A positioning pin (30) is threadedly inserted into the inner side of the U-shaped seat (25), and the lower end of the positioning pin (30) extends into the inside of one group of positioning holes.

2. The grinding device for thermal spray coating according to claim 1, characterized in that: The collecting and moving mechanism comprises a bottom box (2) connected and mounted below the inner side of the rack bin (1); a cabinet (48) is slidably mounted below the outer side of the bottom box (2); and moving racks (3) are symmetrically mounted on both sides of the bottom box (2).

3. The grinding device for thermal spray coating according to claim 1, characterized in that: The driving and propulsion mechanism comprises a slide (9) slidably mounted on the outside of the connecting plate (8), a screw rod (12) is inserted through a thread on the inner side of the slide (9), the screw rod (12) is rotatably engaged with one set of frames (5), one end of the screw rod (12) passes through the outside of the other set of frames (5) and the end is connected to a first motor (13), and the first motor (13) is fixedly mounted on the outside of the corresponding frame (5).

4. The grinding device for thermal spray coating according to claim 1, characterized in that: The dust removal mechanism comprises a T-shaped rod (23) fixedly mounted on a side of the connecting seat (21) away from the support block (37), a second cylinder (20) being mounted on the inner side of the T-shaped rod (23), a U-shaped frame (40) being fixedly mounted on the telescopic end of the second cylinder (20), an air pump (39) being mounted on one side of the U-shaped frame (40), a sleeve (41) being connected to the output end of the air pump (39), a rubber ball (42) being rotatably mounted on the inner side of the sleeve (41), and the rubber ball (42) being in rolling contact with the outer surface of the arc tube (18).

5. The grinding device for thermal spray coating according to claim 1, characterized in that: The meshing mechanism comprises a second motor (27) fixedly mounted on one side edge of the connecting seat (21), a gear (29) being sleeved on the outer side of the output end of the second motor (27), and the gear (29) being meshed with the ring gear (26).

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