Thermal spraying equipment for annular workpiece

Abstract

The invention belongs to the technical field of thermal spraying equipment, and particularly relates to annular workpiece thermal spraying equipment which comprises a base and further comprises a workpiece fixing assembly, the workpiece fixing assembly comprises two positioning rollers, two automatic telescopic rods and two lifting rollers, and the two positioning rollers and the two lifting rollers are symmetrically arranged; according to the workpiece fixing assembly, the distance between a positioning roller and a lifting roller is adjusted through stretching out and drawing back of an automatic telescopic rod, and the annular workpiece can be fixed from the interior or the exterior by changing the distance between the positioning roller and the lifting roller. When a workpiece is fixed, an automatic telescopic rod can drive a lifting roller to ascend and descend, and the distance between the lifting roller and a positioning roller can be changed when the lifting roller ascends and descends, so that the workpiece can be fixed from the outer side or the inner side of the workpiece, the outer side wall of the workpiece can be conveniently sprayed when the workpiece is fixed from the inner side, and the outer side wall of the workpiece can be conveniently sprayed when the workpiece is fixed from the outer side. And the inner side wall of the workpiece can be conveniently sprayed, so that the effects of facilitating spraying and improving the spraying efficiency are achieved.

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 refers to heating and melting the coating material, atomizing it into extremely fine particles with a high-speed airflow, and spraying it onto the surface of the workpiece at a very high speed to form a coating. This process involves depositing fine and dispersed metal or non-metallic coating materials in a molten or semi-molten state onto the prepared substrate surface to form a spray deposition layer.

[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 be changed in real time during the movement process. 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 materials and time.

[0004] In the current prior art, when thermal spraying is performed on 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, which affects the efficiency of the thermal spraying process. Therefore, further improvements can be made.

[0005] To this end, the present invention provides a thermal spraying device for an annular workpiece. 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 problem 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 the outside, and a spray head for thermal spraying is arranged above the base.

[0008] Preferably, a turning table is provided above the base, a positioning seat is fixedly installed on the top of the turning table, 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 arranged above the flip table, a driving gear is fixedly installed on the output shaft of the driving motor, a driven gear A is fixedly installed on the end of the driving shaft away from the positioning roller, and the teeth of the two driven gears A are meshed with the teeth of the driving gear.

[0010] Preferably, a rotating seat is rotatably mounted on the outer walls of the two rotating shafts, 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, a plurality of 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 at both ends of the extrusion seat, and the magnetic poles of the magnets B and A are opposite.

[0013] Preferably, a support table is fixedly installed on the top of the base, the support table is hinged to the flip table, a traveling screw is rotatably installed on the inner wall of the flip table, a driven gear B is fixedly installed on the outer wall of the traveling screw, the teeth of the driven gear B are meshed with the teeth of the driving gear, a driving block is slidably installed on the outer wall of the traveling screw, the outer wall of the driving block is slidably connected to the inner wall of the flip table, 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 table on one side close to 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: 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. The lifting roller will change the distance between it and the positioning roller when it is lifted and lowered, so that the workpiece can be fixed from the outside or inside of the workpiece. When it is fixed from the inside, it is convenient to spray the outer wall of the workpiece, and when it is fixed 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.

[0018] 2. The annular workpiece thermal spraying equipment described in the present invention, through the arranged rotating seat and cleaning scraper and other structures, when spraying the outer wall, the cleaning scraper is rotated to the outside of the workpiece through 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 through 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 arranged bidirectional screw and extrusion seat and other structures, the cleaning scraper and the workpiece are kept in close contact, the cleaning effect of the device on the workpiece is improved, and then the spraying quality is further improved.

[0019] 3. The annular workpiece thermal spraying equipment described in the present invention, through the structures such as the traveling screw, the driving block and the special-shaped block, when the device completes cleaning the inner wall of the workpiece, the traveling screw drives the driving block to move, and the driving block moves the special-shaped block to between the turning table and the supporting table, so that the turning table is turned over, and the turning of the turning table is utilized to make the workpiece tilt, so that 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

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the workpiece body of the present invention; Figure 3 It is a structural schematic diagram of the automatic telescopic rod of the present invention; Figure 4 It is a left view of the structure of the automatic telescopic rod of the present invention; Figure 5 It is a structural schematic diagram of the positioning roller of the present invention; Figure 6 It is a structural schematic diagram of the lifting seat of the present invention; Figure 7 is a cross-sectional view of the cleaning frame structure of the present invention; Figure 8 It is a schematic diagram of the structure of the turning table of the present invention; Fig. 9 It is a structural schematic diagram of the driving motor of the present invention; Fig.10 It is a schematic diagram of the bottom structure of the turning table of the present invention; Fig.11 It is a schematic diagram of the structure of the driving block of the present invention; Fig.12 It is a schematic diagram of the structure of the base of the present invention; 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, receiving seat; 20, bidirectional screw; 21, extrusion seat; 22, limit 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, slide column; 36, limit bracket; 37, mounting seat; 38, spray head; 39, drive box; 40, lateral moving structure; 41, longitudinal moving structure; 42, collection box; 43, calibration frame; 44, handle. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1 to 5As shown, a ring-shaped workpiece thermal spraying device according to an embodiment of the present invention comprises a base 1 and a workpiece fixing assembly, wherein the workpiece fixing assembly comprises a positioning roller 5, an automatic telescopic rod 6 and a lifting roller 9, wherein two positioning rollers 5 and two lifting rollers 9 are provided and are symmetrically arranged, and the workpiece fixing assembly adjusts the distance between the positioning roller 5 and the lifting roller 9 by the extension and retraction of the automatic telescopic rod 6, and the ring-shaped 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, the workpiece body 10 needs to be fixed first, and during 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 sleeved on the outside of the positioning roller 5, the automatic telescopic rod 6 is started to extend, and the lifting roller 9 is moved up under the action of the automatic telescopic rod 6. 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, and then the workpiece body 10 is placed between the lifting roller 9 and the positioning roller 5 to support the workpiece body 10 by the two positioning rollers 5, and 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.

[0024] like Figures 1 to 5 As shown, a turning table 2 is arranged above the base 1, a positioning seat 3 is fixedly installed on the top of the turning table 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, 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, 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; 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 lifted and lowered by the rotating shaft 8, so that the distance between the lifting roller 9 and the positioning roller 5 is adjusted, and the change of the distance between the lifting roller 9 and the positioning roller 5 can be used to fix the workpiece body 10 from the inner and outer sides, so as to facilitate the thermal spraying of the inner and outer walls of the workpiece body 10.

[0025] like Figures 1 to 8As shown, a driving motor 11 is arranged 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 meshed 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. When the positioning roller 5 rotates, it will drive the workpiece body 10 to rotate. The self-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 texture to ensure that there is sufficient friction between the positioning roller 5 and the workpiece body 10.

[0026] like Figures 1 to 7 As 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, 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; during the process of spraying the outer wall, when the workpiece body 10 is installed, the cleaning frame 15 is located on the outer side of the workpiece body 10 by rotating the rotating seat 14, and the inner side of the cleaning frame 15 is provided with a cleaning scraper 18; The cleaning scraper 18 can clean the outer wall of the workpiece body 10 when the workpiece body 10 rotates. Similarly, during the inner wall spraying process, 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.

[0027] like Figures 1 to 8As shown, a receiving seat 19 is fixedly installed on the outer wall of the lifting seat 7, a bidirectional screw 20 is rotatably installed on the inner wall of the receiving seat 19, an extrusion seat 21 is symmetrically threadedly installed on the outer wall of the bidirectional screw 20, a limit shaft 22 is symmetrically fixedly installed on the inner wall of the receiving seat 19, the outer wall of the limit shaft 22 is slidably connected with the inner wall of the extrusion seat 21, and an adjusting knob 23 is fixedly installed on one end of the bidirectional screw 20; the bidirectional screw 20 is driven to rotate by adjusting the knob 23, and the bidirectional screw 20 makes the two extrusion seats 21 approach each other, and 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 come into conflict with the workpiece body 10. As the extrusion seat 21 moves, the squeezing force between the cleaning scraper 18 and the workpiece body 10 becomes stronger, and the compression strength of the elastic member A17 will also become stronger. When cleaning the workpiece body 10, the cleaning scraper 18 and the workpiece body 10 are closely fitted under the action of the reverse elastic force of the elastic member A17, thereby ensuring the cleaning effect of the device on the workpiece body 10.

[0028] like Figures 1 to 6 As 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 at 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 is no longer in contact with 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 are kept in a separated state. 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.

[0029] 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 flip table 2. A travel screw 27 is rotatably installed on the inner wall of the flip table 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 meshed 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 flip table 2. A special-shaped block 30 is fixedly installed on the outer wall of the driving block 29. The top of the flip table 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 is cleaned, 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 will move between the turning table 2 and the supporting table 26. Under the action of the special-shaped block 30, the turning table 2 will be turned over. When the turning table 2 is turned over, the workpiece body 10 will be tilted, and the impurities located inside the workpiece body 10 will 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 end of the hinged position of the turning table 2 and the supporting table 26. On one side, the weight of one side of the flip table 2 is increased to prevent the flip table 2 from overturning. Since the drive block 29 is located at the threaded end of the traveling screw 27, the drive block 29 will be driven to move when the traveling screw 27 is reversed to realize the flipping of the flip table 2. When the traveling screw 27 rotates forward, the drive block 29 moves to the threaded end of the traveling screw 27, and the drive block 29 will no longer interact with the thread, thereby stopping the drive block 29 from moving, and then the drive motor 11 will not interfere with the drive block 29 when it rotates forward.

[0030] like Figures 1 to 11As shown, a support seat 32 is symmetrically fixedly installed on one side of the turning table 2 close to the special-shaped block 30, and an elastic member B33 is fixedly installed on the inner side of the support seat 32, and a pressure plate 34 is fixedly installed on one end of the elastic member B33, and a sliding column 35 is fixedly installed on the outer wall of the pressure plate 34, and 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; 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 to make the elastic member B33 in a compressed state, and under the action of the reverse elastic force of the elastic member 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 the driving block 29 always has a force toward the thread on the traveling screw 27, so that the driving block 29 can be effectively driven to move when the traveling screw 27 is reversed, thereby preventing the traveling screw 27 from idling when it is reversed.

[0031] 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 driving 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, ensure that the lifting seat 7 moves along a preset direction to prevent deviation, and the driving motor 11 is fixed by the mounting seat 37 to provide a fulcrum for the driving motor 11, so that the driving motor 11 can provide stable power for the operation of the device.

[0032] like Figures 8 to 12 As shown, a driving box 39 is fixedly installed on the top of the base 1, a lateral 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 lateral moving structure 40, and a spray head 38 is fixedly installed on one end of the longitudinal moving structure 41. A collecting box 42 is arranged on the top of the base 1, 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 collecting box 42, and a handle 44 is fixedly installed on the outer wall of the collecting box 42; when performing thermal spraying, the lateral moving structure 40 is used to move the spray head 38 to the inner wall of the collecting box 42. 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 spray the outer wall. When spraying the inner wall, the spray head 38 moves on the inside of the workpiece body 10 to spray 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.

[0033] 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 sleeved on the outside of the positioning roller 5 and the lifting roller 9. After the workpiece body 10 is sleeved, the automatic telescopic rod 6 is started 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, and 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 and make the lifting roller 9 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 contract, and the contraction of the automatic telescopic rod 6 causes the lifting roller 9 to descend. After the lifting roller 9 descends, the workpiece body 10 is clamped by cooperating with the positioning roller 5 to fix the workpiece body 10 from the outside, and at this time, the inner wall of the workpiece body 10 can be sprayed.

[0034] After the workpiece body 10 is fixed, 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 two driven gears A13 to rotate, and the driven gear A13 drives the positioning roller 5 to rotate through the driving shaft 4. When the positioning roller 5 rotates, it will drive the workpiece body 10 to rotate. The rotation of the workpiece body 10 facilitates the spraying work. Before the outer wall of the workpiece body 10 is sprayed, 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 to make the cleaning frame 15 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. Therefore, 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.

[0035] When cleaning the inner and outer side 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 and the workpiece body 10 are in conflict. 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. After 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 is no longer in contact with 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 of ​​the workpiece body 10 after spraying during the spraying work.

[0036] When the cleaning scraper 18 is used to clean the surface of the workpiece body 10, 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 cleaning of the inner wall is completed, 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, which will drive the special-shaped block 30 to move. The special-shaped block 30 will enter between the support table 26 and the turning table 2 when it moves. 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, 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.

[0037] When the driving block 29 is located at the threaded end of the advancing screw 27, the pressure plate 34 is squeezed by the driving block 29 so that the elastic member B33 is in a compressed state. Under the action of the reverse elastic force of the elastic member 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 advancing screw 27 is reversed, thereby preventing idling when the advancing screw 27 is reversed. When the device completes the cleaning work, the spray head 38 is driven to move under the action of the lateral moving structure 40 and the longitudinal moving structure 41, and while the spray head 38 moves, it sprays on the surface of the workpiece body 10 that is rotating at a uniform speed, thereby realizing thermal spraying.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A thermal spraying device for an annular workpiece, comprising a base (1), characterized in that: The invention also 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 of each of the positioning roller (5) and the lifting roller (9) being provided and symmetrically arranged, the workpiece fixing assembly adjusting the distance between the positioning roller (5) and the lifting roller (9) by the extension and retraction of the automatic telescopic rod (6), and the annular workpiece can be fixed from the inside or the outside by utilizing the change of 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).

2. The annular workpiece thermal spraying equipment according to claim 1, characterized in that: A turning platform (2) is arranged above the base (1); a positioning seat (3) is fixedly mounted on the top of the turning platform (2); a driving shaft (4) is symmetrically rotatably mounted on the inner wall of the positioning seat (3); two positioning rollers (5) are respectively fixedly mounted on the outer walls of the two driving shafts (4); the automatic telescopic rod (6) is fixedly mounted on the top of the positioning seat (3); a lifting seat (7) is fixedly mounted on one end of the automatic telescopic rod (6) away from the positioning seat (3); a rotating shaft (8) is symmetrically fixedly mounted on the inner wall of the lifting seat (7); and two lifting rollers (9) are rotatably mounted on the outer walls of the two rotating shafts (8).

3. The annular workpiece thermal spraying equipment according to claim 2, characterized in that: A driving motor (11) is arranged above the turning table (2), 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 one 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).

4. The annular workpiece thermal spraying equipment according to claim 3, characterized in that: A rotating seat (14) is rotatably mounted on the outer walls of the two rotating shafts (8); 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).

5. The annular workpiece thermal spraying equipment according to claim 4, characterized in that: A receiving seat (19) is fixedly mounted on the outer wall of the lifting seat (7), a bidirectional screw (20) is rotatably mounted on the inner wall of the receiving seat (19), an extrusion seat (21) is symmetrically threadedly mounted on the outer wall of the bidirectional screw (20), a limiting shaft (22) is symmetrically fixedly mounted on the inner wall of the receiving seat (19), the outer wall of the limiting shaft (22) is slidably connected to the inner wall of the extrusion seat (21), and an adjusting knob (23) is fixedly mounted on one end of the bidirectional screw (20).

6. The annular workpiece thermal spraying equipment according to claim 5, 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 at both ends of the extrusion seat (21), wherein the magnetic poles of the magnets B (25) and A (24) are opposite.

7. The annular workpiece thermal spraying equipment according to claim 6, characterized in that: A support platform (26) is fixedly mounted on the top of the base (1), the support platform (26) is hinged to the turning platform (2), a travel screw (27) is rotatably mounted on the inner wall of the turning platform (2), a driven gear B (28) is fixedly mounted on the outer wall of the travel 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 mounted 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 mounted on the outer wall of the driving block (29), and a counterweight block (31) is fixedly mounted on the top of the turning platform (2) on a side close to the special-shaped block (30).

8. The annular workpiece thermal spraying equipment according to claim 7, characterized in that: A support seat (32) is symmetrically fixedly mounted on one side of the turning table (2) close to the special-shaped block (30); an elastic member B (33) is fixedly mounted on the inner side of the support seat (32); a pressure plate (34) is fixedly mounted on one end of the elastic member B (33); a sliding column (35) is fixedly mounted on the outer wall of the pressure plate (34); 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 contact with each other.

9. The annular workpiece thermal spraying equipment according to claim 8, 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).

10. The annular workpiece thermal spraying equipment according to claim 9, 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 arranged 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).

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