Thermal spraying equipment for annular workpieces

Abstract

The present invention belongs to the technical field of thermal spraying equipment, specifically a thermal spraying equipment for annular workpieces, comprising a base and a workpiece fixing assembly, wherein the workpiece fixing assembly comprises a positioning roller, an automatic telescopic rod and a lifting roller, wherein two positioning rollers and two lifting rollers are provided and are symmetrically arranged, and the workpiece fixing assembly adjusts the distance between the positioning roller and the lifting roller by the telescopic movement of the automatic telescopic rod, and the change in the distance between the positioning roller and the lifting roller can achieve the fixing of the annular workpiece from the inside or outside. When fixing the workpiece, the automatic telescopic rod will drive the lifting roller to rise and fall, and the lifting roller will change the distance between the positioning roller and the positioning roller when rising and falling, thereby achieving the fixing of the workpiece from the outside or inside of the workpiece, and when fixing from the inside, it is convenient to spray the outer wall of the workpiece, and when fixing from the outside, it is convenient to spray the inner wall of the workpiece, thereby achieving the effect of facilitating spraying and improving spraying efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal spraying equipment, in particular to a thermal spraying equipment for annular workpieces. Background Art

[0002] Thermal spraying involves heating and melting the coating material, atomizing it into extremely fine particles using a high-speed airflow, and spraying it onto the workpiece surface at a very high speed to form a coating. This process involves depositing fine and dispersed metallic or non-metallic coating materials in a molten or semi-molten state onto the surface of a prepared substrate, forming a sprayed deposit.

[0003] A Chinese patent with announcement number CN207276690U discloses a thermal spraying device for annular workpieces. In this solution, the speed of the spray gun can change in real time during movement. When the spray gun moves to the inner hole area of ​​the annular workpiece, the movement speed of the spray gun is greatly improved, reducing the time the spray gun stays in the inner hole area of ​​the annular workpiece, thereby reducing the waste of material and time.

[0004] In the current existing technology, when thermal spraying an annular workpiece, due to the shape characteristics of the annular workpiece itself, there is interference and obstruction from the outer wall, making it inconvenient to spray the inner wall of the annular workpiece, thereby affecting the efficiency of the thermal spraying process. Therefore, further improvement can be made.

[0005] To this end, the present invention provides an annular workpiece thermal spraying device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the annular workpiece thermal spraying equipment described in the present invention includes a base and a workpiece fixing component, the workpiece fixing component includes a positioning roller, an automatic telescopic rod and a lifting roller, and the positioning roller and the lifting roller are each provided with two and are symmetrically arranged. The workpiece fixing component adjusts the distance between the positioning roller and the lifting roller by the extension and retraction of the automatic telescopic rod. The change in the distance between the positioning roller and the lifting roller can realize the fixation of the annular workpiece from the inside or outside. A spray head for thermal spraying is provided above the base.

[0008] Preferably, a turning platform is provided above the base, a positioning seat is fixedly installed on the top of the turning platform, a driving shaft is symmetrically rotatably installed on the inner wall of the positioning seat, the two positioning rollers are respectively fixedly installed on the outer walls of the two driving shafts, the automatic telescopic rod is fixedly installed on the top of the positioning seat, a lifting seat is fixedly installed on the end of the automatic telescopic rod away from the positioning seat, a rotating shaft is symmetrically fixedly installed on the inner wall of the lifting seat, and the two lifting rollers are rotatably installed on the outer walls of the two rotating shafts.

[0009] Preferably, a driving motor is provided above the turning table, a driving gear is fixedly mounted on the output shaft of the driving motor, a driven gear A is fixedly mounted on the end of the driving shaft away from the positioning roller, and the teeth of the two driven gears A are engaged with the teeth of the driving gear.

[0010] Preferably, the outer walls of the two rotating shafts are rotatably mounted with a rotating seat, a cleaning frame is fixedly mounted on one side of the rotating seat, a lifting plate is slidably mounted on the inner wall of the cleaning frame, and several elastic parts A are evenly fixedly mounted between the outer wall of the lifting plate and the inner wall of the cleaning frame, and a cleaning scraper is fixedly mounted on the side of the lifting plate away from the elastic part A.

[0011] Preferably, a receiving seat is fixedly installed on the outer wall of the lifting seat, a bidirectional screw is rotatably installed on the inner wall of the receiving seat, an extrusion seat is symmetrically threadedly installed on the outer wall of the bidirectional screw, a limiting shaft is symmetrically fixedly installed on the inner wall of the receiving seat, the outer wall of the limiting shaft is slidably connected to the inner wall of the extrusion seat, and an adjusting knob is fixedly installed on one end of the bidirectional screw.

[0012] Preferably, magnets A are symmetrically fixedly mounted on the inner wall of the rotating seat, and magnets B are fixedly mounted on the inner walls of both ends of the extrusion seat, and the magnetic poles of the magnets B and A are opposite.

[0013] Preferably, a support platform is fixedly installed on the top of the base, and the support platform is hinged to the flip platform. A traveling screw is rotatably installed on the inner wall of the flip platform, and a driven gear B is fixedly installed on the outer wall of the traveling screw. The teeth of the driven gear B are engaged with the teeth of the driving gear. A driving block is slidably installed on the outer wall of the traveling screw, and the outer wall of the driving block is slidably connected to the inner wall of the flip platform. A special-shaped block is fixedly installed on the outer wall of the driving block, and a counterweight block is fixedly installed on the top of the flip platform close to the side of the special-shaped block.

[0014] Preferably, a support seat is symmetrically fixedly installed on one side of the flip table close to the special-shaped block, an elastic part B is fixedly installed on the inner side of the support seat, a pressure plate is fixedly installed on one end of the elastic part B, a sliding column is fixedly installed on the outer wall of the pressure plate, the outer wall of the sliding column is slidably connected to the inner wall of the support seat, and the pressure plate and the driving block are in conflict.

[0015] Preferably, a limiting bracket is symmetrically fixedly installed between the bottom of the lifting seat and the top of the positioning seat, a mounting seat is fixedly installed on the top of the turning table, and the driving motor is fixedly installed on the inner side of the mounting seat.

[0016] Preferably, a driving box is fixedly installed on the top of the base, a transverse moving structure is fixedly installed on the inner wall of the driving box, a longitudinal moving structure is fixedly installed on the inner wall of the transverse moving structure, the spray head is fixedly installed on one end of the longitudinal moving structure, a collecting box is provided on the top of the base, a calibration frame is fixedly installed on the top of the base, the outer wall of the calibration frame is slidably connected to the inner wall of the collecting box, and a handle is fixedly installed on the outer wall of the collecting box.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The annular workpiece thermal spraying equipment described in the present invention has a workpiece fixing component. When the workpiece is fixed, the automatic telescopic rod will drive the lifting roller to rise and fall. When the lifting roller rises and falls, the distance between the lifting roller and the positioning roller will change, thereby making it possible to fix the workpiece from the outside or inside of the workpiece. When fixing from the inside, it is convenient to spray the outer wall of the workpiece. When fixing from the outside, it is convenient to spray the inner wall of the workpiece, thereby achieving the effect of facilitating spraying and improving spraying efficiency.

[0019] 2. The annular workpiece thermal spraying equipment described in the present invention, through the provided rotating seat and cleaning scraper and other structures, when spraying the outer wall, the cleaning scraper is rotated to the outside of the workpiece by the rotating seat, so that the outer wall of the workpiece can be cleaned. When spraying the inner wall, the cleaning scraper is rotated to the inside of the workpiece by the rotating seat, so that the inner wall of the workpiece can be cleaned, thereby achieving the effect of cleaning the inner and outer walls of the workpiece and improving the spraying quality of the device. Through the provided bidirectional screw and extrusion seat and other structures, the cleaning scraper is kept in close contact with the workpiece, thereby improving the cleaning effect of the device on the workpiece and further improving the spraying quality.

[0020] 3. The annular workpiece thermal spraying equipment described in the present invention has structures such as a traveling screw, a driving block and a special-shaped block. When the device completes cleaning the inner wall of the workpiece, the driving block is driven to move by the traveling screw, and the driving block moves the special-shaped block between the turning table and the support table, thereby turning the turning table. The turning of the turning table is used to tilt the workpiece, and then the impurities cleaned from the inside of the workpiece fall off, effectively preventing the impurities on the inside of the workpiece from affecting the spraying work and ensuring the spraying effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the workpiece body of the present invention;

[0024] Figure 3 This is a structural diagram of the automatic telescopic rod of the present invention;

[0025] Figure 4 This is a left view of the structure of the automatic telescopic rod of the present invention;

[0026] Figure 5 This is a structural diagram of the positioning roller of the present invention;

[0027] Figure 6 This is a structural diagram of the lifting seat of the present invention;

[0028] Figure 7 is a cross-sectional view of the cleaning frame structure of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the turning table of the present invention;

[0030] Figure 9 It is a structural schematic diagram of the driving motor of the present invention;

[0031] Figure 10 This is a schematic diagram of the bottom structure of the turning table of the present invention;

[0032] Figure 11 It is a structural schematic diagram of the driving block of the present invention;

[0033] Figure 12 It is a schematic structural diagram of the base of the present invention;

[0034] In the figure: 1. Base; 2. Turning table; 3. Positioning seat; 4. Driving shaft; 5. Positioning roller; 6. Automatic telescopic rod; 7. Lifting seat; 8. Rotating shaft; 9. Lifting roller; 10. Workpiece body; 11. Driving motor; 12. Driving gear; 13. Driven gear A; 14. Rotating seat; 15. Cleaning frame; 16. Lifting plate; 17. Elastic member A; 18. Cleaning scraper; 19. Receiver; 20. Bidirectional screw; 21. Extrusion seat; 22. Limiting shaft; 23. Adjustment Section knob; 24. Magnet A; 25. Magnet B; 26. Support platform; 27. Travel screw; 28. Driven gear B; 29. ​​Drive block; 30. Special-shaped block; 31. Counterweight block; 32. Support seat; 33. Elastic part B; 34. Pressure plate; 35. Sliding column; 36. Limit bracket; 37. Mounting seat; 38. Spray head; 39. Drive box; 40. Horizontal moving structure; 41. Vertical moving structure; 42. Collection box; 43. Calibration frame; 44. Handle. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] like Figures 1 to 5 As shown, an annular workpiece thermal spraying device according to an embodiment of the present invention includes a base 1 and a workpiece fixing assembly, the workpiece fixing assembly includes a positioning roller 5, an automatic telescopic rod 6 and a lifting roller 9, two positioning rollers 5 and two lifting rollers 9 are provided and are symmetrically arranged, the workpiece fixing assembly adjusts the distance between the positioning roller 5 and the lifting roller 9 by the extension and contraction of the automatic telescopic rod 6, and the annular workpiece can be fixed from the inside or outside by changing the distance between the positioning roller 5 and the lifting roller 9, and a spray head 38 for thermal spraying is provided above the base 1; before performing the thermal spraying work, the workpiece body 10 needs to be fixed first, and when performing the fixing work, when it is necessary to spray the outer wall of the workpiece body 10, the lifting roller 9 is first driven to descend by the automatic telescopic rod 6 to bring the lifting roller 9 close to the positioning roller 5, and then the workpiece body 10 is sleeved between the lifting roller 9 and After the workpiece body 10 is installed on the outside of the positioning roller 5, the automatic telescopic rod 6 is started to extend. Under the action of the automatic telescopic rod 6, the lifting roller 9 is moved up. After the lifting roller 9 moves up, it will cooperate with the positioning roller 5 to support from the inside of the workpiece body 10, thereby realizing internal fixation of the workpiece body 10, which is convenient for spraying the outer wall of the workpiece body 10. When it is necessary to spray the inner wall of the workpiece body 10, the lifting roller 9 is first driven up by the automatic telescopic rod 6 to reserve enough space between the lifting roller 9 and the positioning roller 5. Then, the workpiece body 10 is placed between the lifting roller 9 and the positioning roller 5 and supported by the two positioning rollers 5. Then, the automatic telescopic rod 6 is started to drive the lifting roller 9 to move down. After the lifting roller 9 moves down, it will clamp the workpiece body 10, thereby realizing external fixation of the workpiece body 10, which is convenient for spraying the inner wall of the workpiece body 10.

[0037] like Figures 1 to 5As shown, a turning table 2 is provided above the base 1, and a positioning seat 3 is fixedly installed on the top of the turning table 2. The inner wall of the positioning seat 3 is symmetrically rotatably installed with a driving shaft 4, and the two positioning rollers 5 are respectively fixedly installed on the outer walls of the two driving shafts 4, and an automatic telescopic rod 6 is fixedly installed on the top of the positioning seat 3. A lifting seat 7 is fixedly installed on the end of the automatic telescopic rod 6 away from the positioning seat 3. The inner wall of the lifting seat 7 is symmetrically fixed with a rotating shaft 8, and two lifting rollers 9 are rotatably installed on the outer walls of the two rotating shafts 8; when the workpiece body 10 is fixed, the lifting seat 7 is driven to rise and fall by the automatic telescopic rod 6, and the lifting seat 7 is driven to rise and fall by the rotating shaft 8 when the lifting seat 7 is raised and lowered, thereby adjusting the distance between the lifting roller 9 and the positioning roller 5. By changing the distance between the lifting roller 9 and the positioning roller 5, the workpiece body 10 can be fixed from the inner and outer sides, thereby facilitating thermal spraying of the inner and outer walls of the workpiece body 10.

[0038] like Figures 1 to 8 As shown, a driving motor 11 is provided above the turning table 2, and a driving gear 12 is fixedly installed on the output shaft of the driving motor 11, and a driven gear A13 is fixedly installed on the end of the driving shaft 4 away from the positioning roller 5, and the teeth of the two driven gears A13 are engaged with the teeth of the driving gear 12; when working, the driving motor 11 is started, and the driving motor 11 drives the driving gear 12 to rotate, and the driving gear 12 drives the driven gear A13 to rotate, and the driven gear A13 drives the positioning roller 5 to rotate through the driving shaft 4, and the positioning roller 5 will drive the workpiece body 10 to rotate when rotating, and the rotation of the workpiece body 10 provides conditions for cleaning and spraying. The outer surface of the positioning roller 5 is provided with anti-slip grooves to ensure that there is sufficient friction between the positioning roller 5 and the workpiece body 10.

[0039] like Figures 1 to 7As shown, the outer walls of the two rotating shafts 8 are rotatably mounted with a rotating seat 14, a cleaning frame 15 is fixedly mounted on one side of the rotating seat 14, and a lifting plate 16 is slidably mounted on the inner wall of the cleaning frame 15. A plurality of elastic members A17 are evenly fixedly mounted between the outer wall of the lifting plate 16 and the inner wall of the cleaning frame 15, and a cleaning scraper 18 is fixedly mounted on the side of the lifting plate 16 away from the elastic member A17; in the process of spraying the outer wall, when the workpiece body 10 is installed, the cleaning frame 15 is located on the outside of the workpiece body 10 by rotating the rotating seat 14, and the inner side of the cleaning frame 15 is set The cleaning scraper 18 can clean the outer wall of the workpiece body 10 when the workpiece body 10 rotates. Similarly, during the spraying of the inner wall, the cleaning frame 15 is located on the inner side of the workpiece body 10 by rotating the rotating seat 14. At this time, the inner wall of the workpiece body 10 can be cleaned by the cleaning scraper 18, so that the device can clean the inner and outer walls of the workpiece body 10 before spraying the inner and outer walls of the workpiece body 10, so that the area to be sprayed of the workpiece body 10 is in a clean state, thereby ensuring the spraying quality of the thermal spraying work.

[0040] like Figures 1 to 8 As shown, the outer wall of the lifting seat 7 is fixedly installed with a receiving seat 19, and the inner wall of the receiving seat 19 is rotatably installed with a bidirectional screw 20. The outer wall of the bidirectional screw 20 is symmetrically threaded with an extrusion seat 21. The inner wall of the receiving seat 19 is symmetrically fixed with a limit shaft 22. The outer wall of the limit shaft 22 is slidably connected to the inner wall of the extrusion seat 21. One end of the bidirectional screw 20 is fixedly installed with an adjusting knob 23; the bidirectional screw 20 is driven to rotate by the adjusting knob 23, and the bidirectional screw 20 makes the two extrusion seats 21 approach each other. When the extrusion seat 21 moves, it will move the rotating seat 14 Extrusion, the rotating seat 14 will rotate to both sides after being squeezed, thereby driving the two cleaning frames 15 to rotate to both sides. When the cleaning frame 15 rotates, the cleaning scraper 18 will conflict with the workpiece body 10. As the extrusion seat 21 moves, the squeezing force of the cleaning scraper 18 and the workpiece body 10 becomes stronger, and the compression strength of the elastic part A17 will also become stronger. When cleaning the workpiece body 10, the cleaning scraper 18 is tightly fitted to the workpiece body 10 under the action of the reverse elastic force of the elastic part A17, thereby ensuring the cleaning effect of the device on the workpiece body 10.

[0041] like Figures 1 to 6As shown, magnets A24 are symmetrically fixedly installed on the inner wall of the rotating seat 14, and magnets B25 are fixedly installed on the inner walls of both ends of the extrusion seat 21, and the magnetic poles of magnet B25 and magnet A24 are opposite; when the device completes the cleaning work of the workpiece body 10, the adjusting knob 23 is rotated in the opposite direction to make the two extrusion seats 21 move away from each other. After the two extrusion seats 21 move away from each other, a rotation space for the rotating seat 14 to rotate in the opposite direction is provided. The rotating seat 14 rotates in the opposite direction so that the cleaning scraper 18 no longer contacts the workpiece body 10. At this time, the rotating seat 14 is fixed under the action of the magnetic force of magnets B25 and magnet A24, so that the cleaning scraper 18 and the workpiece body 10 remain separated. By separating the cleaning scraper 18 and the workpiece body 10, the sprayed area is prevented from being interfered with by the cleaning scraper 18 during the thermal spraying work, thereby preventing the spraying effect from being affected.

[0042] like Figures 1 to 10As shown, a support platform 26 is fixedly installed on the top of the base 1, and the support platform 26 is hinged to the turning platform 2. A travel screw 27 is rotatably installed on the inner wall of the turning platform 2. A driven gear B28 is fixedly installed on the outer wall of the travel screw 27. The teeth of the driven gear B28 are engaged with the teeth of the driving gear 12. A driving block 29 is slidably installed on the outer wall of the travel screw 27. The outer wall of the driving block 29 is slidably connected to the inner wall of the turning platform 2. A special-shaped block 30 is fixedly installed on the outer wall of the driving block 29. The top of the turning platform 2 is close to the special-shaped block 30. A counterweight block 31 is fixedly installed on the side; when the surface of the workpiece body 10 is sprayed, the impurities cleaned from the outer wall of the workpiece body 10 will fall directly, while the impurities cleaned from the inner wall of the workpiece body 10 will gather at the bottom of the inner wall of the workpiece body 10. After the inner wall cleaning is completed, the driving motor 11 will drive the driving gear 12 to reverse, and the driving gear 12 will drive the traveling screw 27 to reverse through the driven gear B28. When the traveling screw 27 is reversed, it will drive the driving block 29 to move in the direction of the workpiece body 10. The driving block 29 drives the special-shaped block 30 to move, and the special-shaped block 30 moves to between the turning table 2 and the support table 26. Under the action of the special-shaped block 30, the turning table 2 is turned over. When the turning table 2 is turned over, the workpiece body 10 is driven to tilt, and the impurities inside the workpiece body 10 fall under the action of gravity, thereby preventing the impurities inside from affecting the thermal spraying work. When the impurities are completely removed, the special-shaped block 30 withdraws to reset the turning table 2. The counterweight block 31 is set at the other side of the hinge position of the turning table 2 and the support table 26. On one side, the weight of one side of the turning table 2 is increased to prevent the turning table 2 from overturning. Since the driving block 29 is located at the threaded end of the traveling screw 27, the driving block 29 will be driven to move when the traveling screw 27 is reversed to realize the turning of the turning table 2. When the traveling screw 27 rotates forward, the driving block 29 moves to the threaded end of the traveling screw 27, and the driving block 29 will no longer interact with the thread, thereby stopping the driving block 29 from moving, and then the driving motor 11 will not interfere with the driving block 29 when working in the forward direction.

[0043] like Figures 1 to 11When the cam 33 is in the unlock state, the cam 33 is in the unlock state, and the cam 33 is in the unlock state, so that the cam 33 is locked.

[0044] like Figures 1 to 9 As shown, a limiting bracket 36 is symmetrically fixedly installed between the bottom of the lifting seat 7 and the top of the positioning seat 3, a mounting seat 37 is fixedly installed on the top of the turning table 2, and the drive motor 11 is fixedly installed on the inner side of the mounting seat 37; the lifting seat 7 is limited by the limiting bracket 36 to increase the stability of the lifting seat 7 and ensure that the lifting seat 7 moves in a preset direction to prevent deviation. The drive motor 11 is fixed by the mounting seat 37 to provide a fulcrum for the drive motor 11, so that the drive motor 11 can provide stable power for the operation of the device.

[0045] like Figures 8 to 12 As shown, a driving box 39 is fixedly installed on the top of the base 1, a transverse moving structure 40 is installed on the inner wall of the driving box 39, a longitudinal moving structure 41 is fixedly installed on the inner wall of the transverse moving structure 40, and the spray head 38 is fixedly installed on one end of the longitudinal moving structure 41. A collection box 42 is provided on the top of the base 1, and a calibration frame 43 is fixedly installed on the top of the base 1. The outer wall of the calibration frame 43 is slidably connected to the inner wall of the collection box 42, and a handle 44 is fixedly installed on the outer wall of the collection box 42. When performing thermal spraying, the lateral moving structure 40 is used to move the spray head 38. The longitudinal moving structure 41 drives the spray head 38 to move. When spraying the outer wall, the spray head 38 moves on the outside of the workpiece body 10 to realize the spraying of the outer wall. When spraying the inner wall, the spray head 38 moves on the inside of the workpiece body 10 to realize the spraying of the inner wall. When spraying the workpiece body 10, the cleaned impurities will fall to the inside of the collection box 42 for collection. The collection box 42 can be pulled out by the handle 44, which is convenient for processing the impurities collected in the collection box 42.

[0046] Working principle: When performing thermal spraying, first fix the workpiece body 10. When spraying the outer wall of the workpiece body 10, start the automatic telescopic rod 6 to retract. The automatic telescopic rod 6 causes the lifting seat 7 to descend. The lifting seat 7 drives the two lifting rollers 9 to descend through the rotating shaft 8. The descending lifting rollers 9 will be close to the positioning roller 5. At this time, the workpiece body 10 is set on the outside of the positioning roller 5 and the lifting roller 9. After the workpiece body 10 is set, start the automatic telescopic rod 6 again to extend the automatic telescopic rod 6. The extension of the automatic telescopic rod 6 causes the lifting seat 7 to move up, thereby moving the lifting roller 9 up. After the lifting roller 9 moves up, it will cooperate with the positioning roller 5 to support the workpiece body 10 from the inside, thereby realizing the workpiece body 10 from the inside. 0 is fixed, at this time the outer wall of the workpiece body 10 can be sprayed, when the inner wall of the workpiece body 10 is sprayed, the automatic telescopic rod 6 is started to extend, and the automatic telescopic rod 6 drives the lifting roller 9 to move up so that the lifting roller 9 is away from the positioning roller 5. At this time, the workpiece body 10 is placed between the positioning roller 5 and the lifting roller 9, and the workpiece body 10 is supported by the positioning roller 5. After the workpiece body 10 is placed, the automatic telescopic rod 6 is started to retract, and the retraction of the automatic telescopic rod 6 causes the lifting roller 9 to descend. After the lifting roller 9 descends, it clamps the workpiece body 10 through cooperation with the positioning roller 5, thereby fixing the workpiece body 10 from the outside, and now the inner wall of the workpiece body 10 can be sprayed.

[0047] After the workpiece body 10 is fixed, the drive motor 11 is started, and the drive motor 11 drives the driving gear 12 to rotate, and the driving gear 12 drives the two driven gears A13 to rotate, and the driven gear A13 drives the positioning roller 5 to rotate through the drive shaft 4. When the positioning roller 5 rotates, it drives the workpiece body 10 to rotate. The rotation of the workpiece body 10 facilitates the spraying work. Before spraying the outer wall of the workpiece body 10, the rotating seat 14 is rotated so that the cleaning frame 15 is located outside the workpiece body 10. The cleaning scraper 18 arranged on the inner side of the cleaning frame 15 can clean the outer wall of the workpiece body 10 when the workpiece body 10 rotates. Before spraying the inner wall of the workpiece body 10, the rotating seat 14 is rotated so that the cleaning frame 15 is located on the inner side of the workpiece body 10. At this time, the inner wall of the workpiece body 10 can be cleaned by the cleaning scraper 18, so that before spraying the inner and outer walls of the workpiece body 10, the inner and outer walls of the workpiece body 10 can be cleaned, thereby ensuring the spraying quality of the device.

[0048] When cleaning the inner and outer walls of the workpiece body 10, the adjusting knob 23 is turned, and the adjusting knob 23 drives the bidirectional screw 20 to rotate. When the bidirectional screw 20 rotates, the two extrusion seats 21 are brought closer to each other. When the extrusion seat 21 moves, the extrusion seat 21 squeezes the rotating seat 14. After being squeezed, the rotating seat 14 rotates to both sides, thereby driving the two cleaning frames 15 to rotate to both sides. When the cleaning frame 15 rotates, the cleaning scraper 18 conflicts with the workpiece body 10. As the extrusion seat 21 moves, the squeezing force of the cleaning scraper 18 and the workpiece body 10 becomes stronger, and the compression strength of the elastic member A17 also becomes stronger. Under the action of the reverse elastic force of the elastic member A17, The cleaning scraper 18 fits tightly against the workpiece body 10, so that the cleaning effect of the workpiece body 10 is better. When the cleaning work is completed, the adjusting knob 23 is rotated in the opposite direction to reverse the bidirectional screw 20, so that the two extrusion seats 21 move away from each other. After the extrusion seats 21 move away, a rotation space is provided for the rotating seat 14, so that the rotating seat 14 is reversed and the cleaning scraper 18 no longer fits against the workpiece body 10. At this time, the two rotating seats 14 are positioned under the attraction of magnet A24 and magnet B25, and the cleaning scraper 18 remains separated from the workpiece body 10, thereby preventing the cleaning scraper 18 from affecting the area after the spraying of the workpiece body 10 during the spraying work.

[0049] When the surface of the workpiece body 10 is cleaned by the cleaning scraper 18, the impurities cleaned from the outer wall of the workpiece body 10 will directly fall from the surface of the workpiece body 10 into the collection box 42, and the impurities cleaned from the inner wall of the workpiece body 10 will fall to the bottom of the inner wall of the workpiece body 10. After the inner wall is cleaned, the drive motor 11 is started, and the drive motor 11 drives the driving gear 12 to reverse, and the driving gear 12 drives the traveling screw 27 to reverse through the driven gear B28. When the traveling screw 27 reverses, it drives the driving block 29 to The workpiece body 10 moves in the direction of the driving block 29, and the special-shaped block 30 is driven to move when it moves. When the special-shaped block 30 moves, it enters between the support table 26 and the turning table 2. The special-shaped block 30 squeezes the support table 26 to turn the turning table 2, thereby causing the workpiece body 10 to tilt. After the workpiece body 10 tilts, the impurities on the inner wall of the workpiece body 10 will fall into the collection box 42 under the action of gravity, thereby achieving the effect of processing the impurities cleaned from the inner wall of the workpiece body 10. After the impurities are processed, the special-shaped block 30 withdraws to reset the turning table 2.

[0050] When the driving block 29 is located at the threaded end of the traveling screw 27, the pressure plate 34 is squeezed by the driving block 29 so that the elastic part B33 is in a compressed state. Under the action of the reverse elastic force of the elastic part B33, the pressure plate 34 maintains the squeezing state of the driving block 29, so that the driving block 29 is in a stressed state, and then the driving block 29 can be driven to move when the traveling screw 27 is reversed, preventing idling when the traveling screw 27 is reversed. When the device completes the cleaning work, the spray head 38 is driven to move under the action of the horizontal moving structure 40 and the longitudinal moving structure 41, and sprays on the surface of the workpiece body 10 that rotates at a uniform speed while the spray head 38 moves, thereby realizing thermal spraying.

[0051] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal spraying device for an annular workpiece, comprising a base (1), characterized in that: The workpiece fixing assembly further comprises a workpiece fixing assembly, the workpiece fixing assembly comprising a positioning roller (5), an automatic telescopic rod (6) and a lifting roller (9), two positioning rollers (5) and two lifting rollers (9) are provided and are symmetrically arranged, the workpiece fixing assembly adjusts the distance between the positioning roller (5) and the lifting roller (9) by telescoping the automatic telescopic rod (6), and the annular workpiece can be fixed from the inside or outside by changing the distance between the positioning roller (5) and the lifting roller (9), and a spray head (38) for performing thermal spraying is provided above the base (1); A turning platform (2) is provided above the base (1), a positioning seat (3) is fixedly installed on the top of the turning platform (2), a driving shaft (4) is symmetrically rotatably installed on the inner wall of the positioning seat (3), two positioning rollers (5) are respectively fixedly installed on the outer walls of the two driving shafts (4), the automatic telescopic rod (6) is fixedly installed on the top of the positioning seat (3), a lifting seat (7) is fixedly installed on the end of the automatic telescopic rod (6) away from the positioning seat (3), a rotating shaft (8) is symmetrically fixedly installed on the inner wall of the lifting seat (7), and two lifting rollers (9) are rotatably installed on the outer walls of the two rotating shafts (8); The outer walls of the two rotating shafts (8) are both rotatably mounted with a rotating seat (14), a cleaning frame (15) is fixedly mounted on one side of the rotating seat (14), a lifting plate (16) is slidably mounted on the inner wall of the cleaning frame (15), a plurality of elastic members A (17) are evenly fixedly mounted between the outer wall of the lifting plate (16) and the inner wall of the cleaning frame (15), and a cleaning scraper (18) is fixedly mounted on the side of the lifting plate (16) away from the elastic member A (17); The outer wall of the lifting seat (7) is fixedly mounted with a receiving seat (19), the inner wall of the receiving seat (19) is rotatably mounted with a bidirectional screw (20), the outer wall of the bidirectional screw (20) is symmetrically threadedly mounted with an extrusion seat (21), the inner wall of the receiving seat (19) is symmetrically fixedly mounted with a limiting shaft (22), the outer wall of the limiting shaft (22) is slidably connected to the inner wall of the extrusion seat (21), and one end of the bidirectional screw (20) is fixedly mounted with an adjusting knob (23).

2. The annular workpiece thermal spraying equipment according to claim 1, characterized in that: A driving motor (11) is provided above the turning table (2), and a driving gear (12) is fixedly mounted on the output shaft of the driving motor (11). A driven gear A (13) is fixedly mounted on the end of the driving shaft (4) away from the positioning roller (5), and the teeth of the two driven gears A (13) are meshed with the teeth of the driving gear (12).

3. The annular workpiece thermal spraying equipment according to claim 1, characterized in that: Magnets A (24) are symmetrically fixedly mounted on the inner wall of the rotating seat (14), and magnets B (25) are fixedly mounted on the inner walls of both ends of the extrusion seat (21), wherein the magnetic poles of the magnets B (25) and A (24) are opposite.

4. The annular workpiece thermal spraying equipment according to claim 3, characterized in that: A support platform (26) is fixedly installed on the top of the base (1), and the support platform (26) is hinged to the turning platform (2). A traveling screw (27) is rotatably installed on the inner wall of the turning platform (2), and a driven gear B (28) is fixedly installed on the outer wall of the traveling screw (27). The teeth of the driven gear B (28) are meshed with the teeth of the driving gear (12). A driving block (29) is slidably installed on the outer wall of the traveling screw (27), and the outer wall of the driving block (29) is slidably connected to the inner wall of the turning platform (2). A special-shaped block (30) is fixedly installed on the outer wall of the driving block (29), and a counterweight block (31) is fixedly installed on the top of the turning platform (2) on one side close to the special-shaped block (30).

5. The annular workpiece thermal spraying equipment according to claim 4, characterized in that: A support seat (32) is symmetrically fixedly installed on one side of the flip table (2) close to the special-shaped block (30), an elastic member B (33) is fixedly installed on the inner side of the support seat (32), one end of the elastic member B (33) is fixedly installed with a pressure plate (34), an outer wall of the pressure plate (34) is fixedly installed with a sliding column (35), the outer wall of the sliding column (35) is slidably connected to the inner wall of the support seat (32), and the pressure plate (34) and the driving block (29) are in conflict.

6. The annular workpiece thermal spraying equipment according to claim 2, characterized in that: A limiting bracket (36) is symmetrically fixedly installed between the bottom of the lifting seat (7) and the top of the positioning seat (3), a mounting seat (37) is fixedly installed on the top of the turning table (2), and the driving motor (11) is fixedly installed on the inner side of the mounting seat (37).

7. The annular workpiece thermal spraying equipment according to claim 6, characterized in that: A driving box (39) is fixedly mounted on the top of the base (1), a transverse moving structure (40) is fixedly mounted on the inner wall of the driving box (39), a longitudinal moving structure (41) is fixedly mounted on the inner wall of the transverse moving structure (40), the spray head (38) is fixedly mounted on one end of the longitudinal moving structure (41), a collecting box (42) is provided on the top of the base (1), a calibration frame (43) is fixedly mounted on the top of the base (1), the outer wall of the calibration frame (43) is slidably connected to the inner wall of the collecting box (42), and a handle (44) is fixedly mounted on the outer wall of the collecting box (42).

Images