An automated painting device for automotive parts

Abstract

The present invention relates to the technical field of paint spraying equipment, and discloses an automated paint spraying device for automotive accessories, including a base, which serves as the basic component of the overall device and is used to assemble and carry various processing mechanisms and their subordinate lower structural parts; a closed seat, which is used to form a closed processing space on the outside during the painting process of the half-axle sleeve accessories. By adding and setting an outer wall spraying mechanism, at the beginning of painting, the mechanism quickly evacuates the paint spraying space to a vacuum state. On the one hand, it prevents the pollution of dust and impurities in the air to the paint surface, and guarantees the quality of painting from the source. On the other hand, it allows the paint mist to be more efficiently adsorbed on the surface of the metal accessories in a vacuum environment, effectively reducing the loss of paint and saving production costs. At the same time, the mechanism innovatively adopts an operating mode that combines the rotation of the workpiece with the revolution of the inner disk seat. The two work in harmony to ensure that the atomized paint mist is uniformly attached to the surface of the accessories in all directions, without dead angles, and greatly improves the uniformity of the paint spraying.

Description

Technical Field

[0001] The present invention relates to the technical field of paint spraying equipment, in particular to an automatic paint spraying device for automobile accessories. Background Art

[0002] Axle bushings are key components in automotive transmission systems. They are typically made of high-quality alloy steel and feature a tubular structure. One end is tightly connected to the drive axle housing, while the other supports and guides the axle shaft. The axle bushing must not only withstand the vehicle's vertical loads but also withstand the torque and impact forces generated during starting, braking, and cornering. Its robust structure ensures vehicle stability and the proper operation of the axle shaft. Because of its long-term exposure to complex and harsh operating conditions, axle bushings demand extremely high quality and durability.

[0003] Due to the harsh operating environment of automotive axle bushings, their inner walls are constantly in contact with lubricating oil and the high-speed rotating axle, making them susceptible to friction and chemical erosion. Their outer walls, on the other hand, are subject to corrosion from rain, dirt, salt, and other substances. Therefore, after machining, automotive axle bushings are typically spray-painted both inside and outside. This coating forms a lubricating and corrosion-resistant protective film on the inner wall, reducing wear. The outer surface, after painting, effectively blocks corrosive media and prevents rust, extending the life of the axle bushing while maintaining its mechanical properties and aesthetic quality.

[0004] Atomized painting is a commonly used process for painting automotive axle bushings. This process involves thoroughly mixing a prepared paint solution with high-velocity gas to atomize the paint solution, which is then sprayed onto the axle bushing surface. However, this spraying method has significant drawbacks. During the spraying process, only 30%-40% of the paint solution adheres to the workpiece surface and effectively works. The remaining 60%-70% dissipates into the air as paint mist, resulting in significant paint waste and significantly increasing production costs. This also results in a long-term low paint utilization rate. Furthermore, this airborne paint mist contains a large amount of volatile organic compounds. Long-term exposure to such a working environment can cause workers to inhale these harmful compounds, resulting in damage to their respiratory and nervous systems, posing a serious threat to their health. Furthermore, the paint mist released into the surrounding environment pollutes the air, exacerbating environmental pollution and failing to meet the requirements of green production and sustainable development. Therefore, those skilled in the art have proposed an automated painting device for automotive parts to address these technical issues. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an automatic painting device for automobile accessories, which solves the problem of low paint liquid utilization rate during the painting process of existing automobile half-axle sleeve accessories.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: An automatic painting device for automotive parts, comprising

[0007] a base, which serves as the basic component of the overall device and is used for assembling and carrying each processing mechanism and its subordinate structural components;

[0008] a closed seat, which is arranged on the top of the base and is used to form a sealed processing space outside during the painting process of the half-axle sleeve fitting;

[0009] a sealing cover, which is arranged inside the closed seat and is used to form a sealed processing space inside during the painting process of the half-axle sleeve fitting;

[0010] an installation guiding mechanism, which is arranged on the top of the base and is used to guide and install the half-axle sleeve fitting before the painting process;

[0011] an outer wall spraying mechanism, which is arranged inside the closed seat and is used to spray the outer wall of the automotive half-axle sleeve fitting after being processed by the installation guiding mechanism;

[0012] a drainage and attachment mechanism, which is arranged inside the sealing cover and is used to drain and attach the residual paint mist on the inner wall of the half-axle sleeve fitting after being processed by the outer wall spraying mechanism;

[0013] a residue treatment mechanism, which is arranged at the rear side of the base and is used to purify the residual paint mist after processing the half-axle sleeve fitting.

[0014] Preferably, the installation guiding mechanism includes an outer disc seat. The outer disc seat is arranged in the middle of the top end of the base. The middle part of the inner side of the outer disc seat is rotatably connected with an inner disc seat. A plurality of bottom limit ring seats are circumferentially arranged near the edge of the top end of the inner disc seat. The bottom ends of the bottom limit ring seats are fixedly connected with guiding pipes, and the bottom ends of the guiding pipes penetrate through the inner disc seat and extend downward. The middle part of the inner side of the sealing cover is fixedly connected with a second partition plate. A plurality of top limit grooves are circumferentially arranged around the bottom of the second partition plate. An opening door is arranged in the middle of the bottom end of the front side of the closed seat.

[0015] Preferably, the outer wall spraying mechanism includes a matching ring groove. The matching ring groove is arranged near the edge of the top of the outer disc seat. The sealing cover, the top middle part of the closed seat is provided with an electric cylinder. The top end of the rod body of the electric cylinder is fixedly connected to the middle part of the top end of the sealing seat. A plurality of atomizing spray rows are circumferentially arranged around the top of the outer disc seat. A vacuum generator is arranged at the middle and lower part of one side of the outer wall of the sealing cover. The vacuum generator is used to evacuate the space in the middle and lower part of the inner side of the sealing cover after it moves down.

[0016] Preferably, the outer wall spraying mechanism further includes a first partition plate. The middle part of the inner side of the base is fixedly connected with the first partition plate. The middle part of the bottom end of the inner disc seat is fixedly connected with a transmission shaft, and the bottom end of the transmission shaft is rotatably connected with the middle part of the top end of the first partition plate. A driving motor is arranged in the middle of the bottom end of the first partition plate, and the output end of the driving motor penetrates through the first partition plate and is connected with the middle part of the bottom end of the transmission shaft. The bottom of the outer disc seat is fixedly connected with an internal gear ring seat, and the bottoms of the outer walls of the guiding pipes are fixedly connected with external gear ring seats.

[0017] Preferably, the drainage and attachment mechanism includes an adjustment seat. The adjustment seat is arranged in the middle of the second partition plate. The middle and lower part of the inner side of the adjustment seat is fixedly connected with an anti - detachment ring seat. A metal sealing plate is arranged above the anti - detachment ring seat. An electromagnetic seat is arranged in the middle of the top end of the inner side of the adjustment seat. A plurality of guide through - holes are arranged in a circumferential array in the upper and middle part of the adjustment seat. The guide through - holes are used for conducting air and paint mist between the upper and lower parts of the second partition plate. A plurality of discharge ports are arranged in a circumferential array at the four - week part of the middle of the second partition plate, and the bottoms of the discharge ports respectively correspond to the interiors of the top limit slots at corresponding positions.

[0018] Preferably, the drainage and attachment mechanism further includes a return spring. A plurality of return springs are equidistantly arranged near the edges around the top end of the second partition plate, and the bottom ends of the return springs are respectively connected with corresponding positions at the bottom end of the sealing seat. On both sides of the middle part of the top end of the first partition plate, linear slide rails are arranged, and semi - arc seats are arranged at the top ends of the linear slide rails. Sealing rubber pads are arranged on the tops of the semi - arc seats.

[0019] Preferably, the residue treatment mechanism includes an air pump. An air pump is arranged on one side of the middle part of the bottom end of the first partition plate. The discharge end of the air pump is communicated with the upper part of the first partition plate through a connecting pipe. A treatment box is arranged at the middle and lower part of the rear side of the base. A third partition plate is fixedly connected to the middle part of the inner side of the treatment box. A flocculant dissolution liquid chamber is arranged above the third partition plate. The middle and upper part of the rear side of the base is communicated with one end of an output pipe, and the other end of the output pipe penetrates through the treatment box and extends to the bottom of the flocculant dissolution liquid chamber. An electromagnetic control valve is arranged on the output pipe.

[0020] Preferably, the residue treatment mechanism further includes a communicating pipe. A communicating pipe is arranged on one side of the middle and upper part of the rear end of the treatment box, and the other end of the communicating pipe is communicated with one side of the bottom end of the third partition plate. A plurality of installation frames are equidistantly and fixedly connected to the inner bottom of the treatment box, and filter cotton plates are arranged in the middle of the inner sides of the installation frames. A plurality of discharge slots are equidistantly opened at the middle and lower part of the side of the treatment box away from the communicating pipe.

[0021] Working principle: When painting the half-axle sleeve fittings of an automobile, first, the installation seat guiding mechanism is activated. The staff first opens the base on the closed seat, and then places the half-axle sleeve fittings to be painted inside the bottom limit ring seat on the inner disc seat. The bottom of the automobile half-axle sleeve fittings is guided and fixed through the bottom limit ring seat. After the bottom of the half-axle sleeve fittings is installed and fixed, when painting the half-axle sleeve fittings, the staff can control the electric cylinder on the closed seat to start through the control device. When the rod of the electric cylinder moves downward, it drives the sealing seat and the sealing cover at its bottom to move downward synchronously. While the sealing cover moves downward, it drives the partition plate II inside it to move downward synchronously. When the partition plate II moves downward, the top limit groove at its bottom is sleeved onto the top of the half-axle sleeve at the corresponding position, and the upper and lower ends of the half-axle sleeve fittings are guided and fixed doubly, so as to complete the installation and guiding and fixing treatment of the automobile half-axle sleeve fittings before painting; Then the outer wall spraying mechanism is activated. Before painting the outer wall of the half-axle sleeve fittings, the staff controls the electric cylinder on the closed seat to start through the control device. When the electric cylinder starts, the rod on it is pushed out. When the rod of the electric cylinder is pushed out, it drives the sealing seat and the sealing cover at its bottom to move downward synchronously. While the sealing cover moves downward, it enters into the matching ring groove on the outer disc seat, thus forming a sealed painting space above the outer disc seat. Then the vacuum generator on the sealing cover is activated, and the vacuum generator evacuates the middle and lower parts of the inner side of the sealing cover into a vacuum state, thus completing the pretreatment work of the half-axle sleeve fittings before painting. After that, the atomizing spray row on the outer disc seat is activated. The atomizing spray row atomizes the paint liquid and sprays it onto the outer wall surface of the half-axle sleeve fittings on the inner disc seat. At the same time, the driving motor at the bottom of the partition plate I is activated. When the rotating shaft of the driving motor rotates, it drives the transmission shaft on it to rotate synchronously. When the transmission shaft rotates, it drives the inner disc seat in the outer disc seat to rotate synchronously. When the inner disc seat rotates, it synchronously drives the half-axle sleeve fittings on it to rotate. And while the inner disc seat rotates, it also synchronously drives the guiding pipe and the outer tooth ring seat at its bottom to rotate synchronously. When the outer tooth ring seat rotates, it is driven by the inner tooth ring seat at the bottom of the outer disc seat to rotate synchronously while rotating itself. Therefore, when the half-axle sleeve fittings on the inner disc seat rotate following it, the half-axle sleeve fittings themselves also rotate synchronously, so that the paint mist atomized and sprayed by the atomizing spray row on the outer disc seat can adhere to all positions on the outer wall of the half-axle shaft fittings, thus completing the automatic painting treatment of the outer wall of the half-axle sleeve fittings;Then the drainage and attachment mechanism is activated. After the outer wall of the half-axle sleeve fitting is sprayed with paint, the inner bottom space of the sealing cover is filled with paint mist that has overflowed and has not adhered to the outer surface of the half-axle sleeve fitting. Then, the electromagnetic seat in the adjustment seat is powered on to generate magnetism. After generating magnetism, the electromagnetic seat adsorbs the metal closing plate at its bottom and moves it upward and fixes it by adsorption. After moving upward, the metal closing plate releases the separation state between the upper and lower parts of the partition plate II, and at the same time makes the upper and lower sides inside the sealing cover in a conductive state. At this time, the excess paint mist overflowing in the bottom space of the partition plate II enters the upper space of the partition plate II through the guide through hole on the adjustment seat. After the paint mist in the bottom space of the partition plate II completely enters the space at the top of the partition plate II, the electromagnetic seat is powered off and the magnetism on it disappears. After the magnetism on the electromagnetic seat disappears, the adsorption and fixation effect on the metal closing plate also disappears. After the metal closing plate is released from fixation, it falls and returns to the anti-drop ring seat, closing the upper and lower spaces of the partition plate II again. Then, the staff controls the electric cylinder on the closing seat to start again through the control device. While the rod of the electric cylinder is pushed out, it drives the sealing seat at its bottom to move downward synchronously. While the sealing seat moves downward in the sealing cover, it squeezes the paint mist in the upper space of the partition plate II to enter the inside of the half-axle sleeve through the discharge port on the partition plate II. At the same time, the linear slide rail on the partition plate I is activated. While the linear slide rail is activated, it drives the semi-circular seat on it to move synchronously towards the middle. After the semi-circular seat moves into place, the bottom of the guide pipe is blocked by the sealing gasket on the upper part of the semi-circular seat, so that the paint mist can stay inside the half-axle sleeve for a long time, and the paint mist inside the half-axle sleeve adheres to the inner wall of the half-axle sleeve, thereby completing the attachment treatment of the paint mist on the inner wall of the half-axle sleeve;Finally, the residual treatment mechanism is activated. After the inner wall of the half-axle sleeve fitting is completely attached with paint mist, the linear slide rail on the first partition plate resets. While resetting, the linear slide rail drives the semi-circular seat and the sealing gasket on it to reset synchronously. Then, the residual paint mist remaining inside the half-axle sleeve fitting and not attached to its inner wall enters the space above the first partition plate inside the base. At this time, the air pump at the bottom of the first partition plate is activated. The air pump injects air into the space above the first partition plate through the connecting pipe. After injecting a certain amount of air, the staff opens the electromagnetic control valve on the output pipe, so that the air containing a small amount of residual paint mist in the space above the first partition plate enters the flocculant solution chamber on the third partition plate through the output pipe, and the residual paint mist contained in the air is adsorbed and treated by the flocculant solution in the flocculant solution chamber. After that, the air treated by the flocculant solution in the flocculant solution chamber floats up from the solution and drifts into the space at the top of the flocculant solution chamber. Then, the air after preliminary treatment is discharged into the space below the third partition plate through the connecting pipe on the treatment box. After that, as the gas in the space above the first partition plate is continuously discharged, the gas squeezes the air at the bottom of the third partition plate to move outwards. While the air at the bottom of the third partition plate is discharged outwards, it is filtered layer by layer through the filter cotton board on its inner mounting frame, so as to filter out the residual paint mist particles in the air. Finally, the air after multiple filtration treatments is discharged into the external environment through the discharge slot on the treatment box, thus completing the multiple purification and filtration treatment of the residual paint mist. After multiple treatments on the half-axle sleeve, it is left standing for a period of time until the paint liquid on the surface of the half-axle sleeve fitting dries. Then, the staff can open the opening door and the sealing cover to take out and collect the half-axle sleeve fitting on the outer disc seat. After that, the staff loads the other half-axle sleeves to be processed onto the inner disc seat again, and the above operation steps can be cycled.;

[0022] The present invention provides an automatic painting device for automotive parts. It has the following beneficial effects:

[0023] 1. By adding and setting the installation guiding mechanism, when painting the half-axle sleeve fitting, this mechanism can accurately and firmly install and stably fix the upper and lower ends of the half-axle sleeve fitting, effectively avoiding problems such as shaking and displacement of the fitting during painting, greatly ensuring the stability and reliability of the painting treatment. Moreover, based on the stable installation, the paint liquid mist during the painting process can more evenly cover the surface of the half-axle sleeve fitting, significantly improving the quality and effect of the painting, thereby enhancing the overall quality of the half-axle sleeve fitting, extending its service life, and at the same time improving production efficiency and reducing the defective rate.

[0024] 2. By adding and setting an outer wall spraying mechanism, at the beginning of painting, this mechanism quickly evacuates the painting space to a vacuum state. On the one hand, it prevents dust and impurities in the air from contaminating the paint surface, ensuring the painting quality from the source. On the other hand, it enables the paint mist to be more efficiently adsorbed on the surface of metal fittings in a vacuum environment, effectively reducing painting losses and saving production costs. At the same time, this mechanism innovatively adopts an operating mode that combines the rotation of the workpiece and the revolution of the inner disk seat. The two cooperate tacitly to ensure that the atomized paint mist adheres to the surface of the fittings comprehensively, without dead angles, and evenly, greatly improving the uniformity of painting and significantly optimizing the appearance and performance of the half shaft sleeve fittings.

[0025] 3. By adding and setting a drainage and adhesion mechanism, when processing the inner wall of the half shaft sleeve, this mechanism conducts multiple guides on the excess and dispersed paint mist after outer wall spraying, and then injects it into each half shaft sleeve. Then, the internal space of the half shaft sleeve is closed to promote the full adhesion of the paint mist to the inner wall. This treatment method, on the one hand, greatly improves the utilization rate of the paint mist, reduces waste, and lowers the paint liquid usage cost during the painting process of the half shaft sleeve fittings. On the other hand, it effectively avoids the pollution of the environment by the dispersed paint mist and the potential threat to the health of surrounding workers, creating a more environmentally friendly and healthy production environment.

[0026] 4. By adding and setting a residue treatment mechanism, after the equipment conducts multiple recycling and utilization of the paint mist, this mechanism first uses gas guiding technology to accurately introduce the residual paint mist in the equipment into the flocculant solution for preliminary purification, effectively separating the harmful components in the paint mist. Then, through multiple filtering devices, it further deeply filters the fine paint mist particles remaining in the air. After the treated gas meets the emission standards, it is discharged. This treatment method not only avoids the pollution of the environment by the paint mist and reduces the environmental protection risk, but also promotes the realization of green production through cyclic purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a front - side structural schematic diagram of the present invention;

[0028] Figure 2 is a rear - side structural schematic diagram of the present invention;

[0029] Figure 3 is a cross - sectional structural schematic diagram of the interior of the present invention;

[0030] Figure 4 is a partial structural schematic diagram of the outer disk seat of the present invention;

[0031] Figure 5 is a bottom schematic diagram of the outer disk seat of the present invention;

[0032] Figure 6 is a cross - sectional structural schematic diagram of the interior of the sealing cover of the present invention;

[0033] Figure 7 Schematic diagram of the bottom structure of the second partition board of the present invention;

[0034] Figure 8 Schematic cross-sectional view of the internal structure of the adjustment seat of the present invention;

[0035] Figure 9 Schematic diagram of the internal structure of the processing box of the present invention.

[0036] Among them, 1. Base; 2. Enclosure seat; 3. Opening door; 4. Electric cylinder; 5. Connecting pipe; 6. Processing box; 7. Discharge groove; 8. Output pipe; 9. Electromagnetic control valve; 10. Sealing cover; 11. Outer disc seat; 12. Sealing gasket; 13. Linear slide rail; 14. Semi-circular seat; 15. Driving motor; 16. Transmission shaft; 17. Air pump; 18. First partition board; 19. Inner disc seat; 20. Atomizing spray row; 21. Vacuum generator; 22. Bottom limit ring seat; 23. Guide pipe; 24. Inner gear ring seat; 25. Outer gear ring seat; 26. Sealing seat; 27. Return spring; 28. Second partition board; 29. Adjustment seat; 30. Discharge port; 31. Anti-disengagement ring seat; 32. Metal closing plate; 33. Top limit groove; 34. Guide through hole; 35. Electromagnetic seat; 36. Flocculant dissolution liquid cavity; 37. Installation frame; 38. Filter cotton board; 39. Third partition board; 40. Matching ring groove. Detailed implementation manners

[0037] Next, in combination with the specification drawings of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Appendix Figure 1 -Appendix Figure 2 , the embodiments of the present invention provide an automatic painting device for automotive parts, including a base 1, which serves as the basic component of the overall device and is used for assembling and carrying each processing mechanism and its subordinate structural components; an enclosure seat 2, which is arranged on the top of the base 1 and is used to form a sealed processing space outside during the painting process of the half shaft sleeve parts; a sealing cover 10, which is arranged inside the enclosure seat 2 and is used to form a sealed processing space inside during the painting process of the half shaft sleeve parts;

[0039] Please refer to Appendix Figure 3 -Appendix Figure 4 , an installation guiding mechanism, which is arranged on the top of the base 1 and is used for guiding and installing the half shaft sleeve parts before the painting process;

[0040] The installation and guiding mechanism includes an outer disc seat 11. The outer disc seat 11 is provided in the middle of the top end of the base 1. The middle part of the inner side of the outer disc seat 11 is rotatably connected with an inner disc seat 19. A plurality of bottom limit ring seats 22 are circumferentially arranged near the edge of the top end of the inner disc seat 19. Guide pipes 23 are fixedly connected to the bottom ends of the bottom limit ring seats 22, and the bottom ends of the guide pipes 23 penetrate through the inner disc seat 19 and extend downward. A partition plate two 28 is fixedly connected to the middle part of the inner side of the sealing cover 10. A plurality of top limit grooves 33 are circumferentially arranged around the bottom of the partition plate two 28. An opening door 3 is provided in the middle of the bottom end of the front side of the closed seat 2.

[0041] When the installation seat guiding mechanism is started, the staff first opens the base 1 on the closed seat 2, and then places the half shaft sleeve fitting to be spray-painted on the bottom limit ring seats 22 on the inner disc seat 19. The bottom of the automotive half shaft sleeve fitting is guided and fixed through the bottom limit ring seats 22. After the bottom of the half shaft sleeve fitting is installed and fixed, when spray-painting the half shaft sleeve fitting, the staff can control the electric cylinder 4 on the closed seat 2 to start through the control device. When the rod body of the electric cylinder 4 moves downward, it drives the sealing seat 26 and the sealing cover 10 at its bottom to move downward synchronously. While the sealing cover 10 moves downward, it drives the partition plate two 28 inside it to move downward synchronously. When the partition plate two 28 moves downward, the top limit grooves 33 at its bottom are sleeved on the top of the half shaft sleeve at the corresponding position. By guiding and fixing the upper and lower ends of the half shaft sleeve fitting doubly, the installation and guiding and fixing treatment of the automotive half shaft sleeve fitting before spray-painting are completed.

[0042] Please refer to the appendix Figure 3 - appendix Figure 5 , the outer wall spraying mechanism, which is arranged inside the closed seat 2 and is used for spray-painting the outer wall of the automotive half shaft sleeve fitting after being processed by the installation and guiding mechanism;

[0043] The outer wall spraying mechanism includes a matching ring groove 40. The matching ring groove 40 is opened near the edge of the top of the outer disc seat 11. A sealing seat 26 is slidably connected to the upper middle part of the inner side of the sealing cover 10. An electric cylinder 4 is provided in the middle of the top end of the closed seat 2. The top end of the rod body of the electric cylinder 4 is fixedly connected to the middle of the top end of the sealing seat 26. A plurality of atomizing spray rows 20 are circumferentially arranged around the top of the outer disc seat 11. A vacuum generator 21 is arranged at the middle and lower part of one side of the outer wall of the sealing cover 10. The vacuum generator 21 is used for vacuumizing the space in the middle and lower part of the inner side of the sealing cover 10 after it moves downward.

[0044] When the outer wall spraying mechanism is started, before painting the outer wall of the half shaft sleeve fitting, the staff controls the electric cylinder 4 on the closing seat 2 to start through the control device. When the electric cylinder 4 starts, the rod body on it is pushed out. While the rod body of the electric cylinder 4 is being pushed out, it drives the sealing seat 26 and the sealing cover 10 at its bottom to move down synchronously. While the sealing cover 10 is moving down, it enters into the matching ring groove 40 on the outer disc seat 11, thereby forming a sealed painting space above the outer disc seat 11. Then, the vacuum generator 21 on the sealing cover 10 is started, and the vacuum generator 21 evacuates the middle and lower parts inside the sealing cover 10 to a vacuum state, thus completing the pretreatment work of the half shaft sleeve fitting before painting.

[0045] The outer wall spraying mechanism further includes a first partition plate 18. The middle part inside the base 1 is fixedly connected with the first partition plate 18. The middle part at the bottom end of the inner disc seat 19 is fixedly connected with a transmission shaft 16, and the bottom end of the transmission shaft 16 is rotatably connected with the middle part at the top end of the first partition plate 18. The middle part at the bottom end of the first partition plate 18 is provided with a driving motor 15, and the output end of the driving motor 15 penetrates through the first partition plate 18 and is connected with the middle part at the bottom end of the transmission shaft 16. The bottom of the outer disc seat 11 is fixedly connected with an internal gear ring seat 24, and the bottoms of the outer walls of the guiding pipes 23 are fixedly connected with external gear ring seats 25.

[0046] After that, the atomizing spray row 20 on the outer disc seat 11 is started. The atomizing spray row 20 atomizes the paint liquid and sprays it onto the outer wall surface of the half shaft sleeve fitting on the inner disc seat 19. At the same time, the driving motor 15 at the bottom of the first partition plate 18 is started. While the rotating shaft of the driving motor 15 is rotating, it drives the transmission shaft 16 on it to rotate synchronously. While the transmission shaft 16 is rotating, it drives the inner disc seat 19 inside the outer disc seat 11 to rotate synchronously. While the inner disc seat 19 is rotating, it synchronously drives the half shaft sleeve fitting on it to rotate, and while the inner disc seat 19 is rotating, it also synchronously drives the guiding pipes 23 and the external gear ring seats 25 at its bottom to rotate synchronously.

[0047] While the external gear ring seat 25 is rotating, it is driven by the internal gear ring seat 24 at the bottom of the outer disc seat 11 to rotate synchronously while rotating itself. Therefore, while the half shaft sleeve fitting on the inner disc seat 19 is rotating with it, the half shaft sleeve fitting itself is also rotating synchronously, so that the paint mist atomized and sprayed by the atomizing spray row 20 on the outer disc seat 11 can adhere to various positions on the outer wall of the half shaft fitting, thereby completing the automatic painting treatment of the outer wall of the half shaft sleeve fitting.

[0048] Please refer to the attached Figure 6 - attached Figure 8 for the drainage and adhesion mechanism, which is arranged inside the sealing cover 10 and is used for draining and adhering the residual paint mist on the inner wall of the half shaft sleeve fitting after being processed by the outer wall spraying mechanism;

[0049] The drainage and attachment mechanism includes an adjustment seat 29. The adjustment seat 29 is arranged in the middle of the second partition plate 28. The middle and lower part inside the adjustment seat 29 is fixedly connected with an anti - detachment ring seat 31. The upper part of the anti - detachment ring seat 31 is provided with a metal closing plate 32. The middle of the top inside the adjustment seat 29 is provided with an electromagnetic seat 35. A plurality of through - holes 34 are circumferentially arrayed in the upper middle part of the adjustment seat 29. The through - holes 34 are used to conduct air and paint mist between the upper and lower parts of the second partition plate 28. A plurality of discharge ports 30 are circumferentially arrayed around the middle of the second partition plate 28. The bottoms of the discharge ports 30 respectively correspond to the inside of the top limit slots 33 at the corresponding positions.

[0050] When the bottom space of the second partition plate 28 is in a vacuum state during the atomized painting process, the paint mist generated by painting will diffuse in the bottom space chamber. After painting the outer wall of the half - shaft sleeve, if the bottom space and the top space of the second partition plate 28 are conducted, due to the tendency of gas to diffuse from the high - pressure area to the low - pressure area, at this time, the air pressure of the air containing paint mist in the bottom space is relatively high, while the pressure in the top space is relatively low. Therefore, after the two spaces are conducted, the paint mist will enter the top space from the bottom space under the action of the pressure difference.

[0051] When the drainage and attachment mechanism is started, after painting the outer wall of the half - shaft sleeve fitting, the inner bottom space of the sealing cover 10 is filled with the paint mist that has overflowed and has not adhered to the outer surface of the half - shaft sleeve fitting. Then, the electromagnetic seat 35 in the adjustment seat 29 is energized to generate magnetism. After generating magnetism, the electromagnetic seat 35 adsorbs the metal closing plate 32 at its bottom to move upward and is adsorbed and fixed by it. After moving upward, the metal closing plate 32 releases the partition state between the upper and lower parts of the second partition plate 28, and at the same time, it also makes the upper and lower sides inside the sealing cover 10 in a conducting state.

[0052] At this time, the excess paint mist overflowing in the bottom space of the second partition plate 28 enters the upper space of the second partition plate 28 through the through - holes 34 on the adjustment seat 29. After all the paint mist in the bottom space of the second partition plate 28 completely enters the space at the top of the second partition plate 28, the electromagnetic seat 35 is powered off and its magnetism disappears. After the magnetism on the electromagnetic seat 35 disappears, its adsorption and fixation effect on the metal closing plate 32 also disappears. After the metal closing plate 32 is released from fixation, it falls and resumes its position on the anti - detachment ring seat 31, and closes the upper and lower spaces of the second partition plate 28 again.

[0053] The drainage and attachment mechanism further includes a return spring 27. A plurality of return springs 27 are equidistantly arranged near the edges around the top of the second partition plate 28. The bottom ends of the return springs 27 are respectively connected to the corresponding positions at the bottom end of the sealing seat 26. On both sides of the middle of the top of the first partition plate 18, linear slide rails 13 are provided. The top ends of the linear slide rails 13 are provided with semi - arc seats 14. Sealing rubber pads 12 are provided on the tops of the semi - arc seats 14.

[0054] After that, the staff controls the electric cylinder 4 on the closed seat 2 through the control device to start again. While the rod body of the electric cylinder 4 is pushed out, it drives the sealing seat 26 at its bottom to move downward synchronously. While the sealing seat 26 moves downward in the sealing cover 10, it squeezes the paint mist in the upper space of the partition plate two 28 to enter the inside of the half shaft sleeve through the discharge port 30 on the partition plate two 28. At the same time, the linear slide rail 13 on the partition plate one 18 starts. While the linear slide rail 13 starts, it drives the semi-circular seat 14 on it to move synchronously towards the middle. After the semi-circular seat 14 moves in place, the bottom of the guiding pipe 23 is blocked by the sealing gasket 12 on the upper part of the semi-circular seat 14, so that the paint mist can stay in the half shaft sleeve for a long time, and the paint mist inside the half shaft sleeve adheres to the inner wall of the half shaft sleeve, thereby completing the adhesion treatment of the paint mist on the inner wall of the half shaft sleeve.

[0055] Please refer to the attached Figure 9 , the residue treatment mechanism, which is arranged at the rear side of the base 1 and is used for purifying the paint mist remaining after the treatment of the half shaft sleeve fittings.

[0056] The residue treatment mechanism includes an air pump 17. An air pump 17 is arranged on one side of the middle part of the bottom end of the partition plate one 18. The discharge end of the air pump 17 is communicated with the upper part of the partition plate one 18 through a connecting pipe. A treatment box 6 is arranged at the lower middle part of the rear side of the base 1. A partition plate three 39 is fixedly connected to the middle part of the inner side of the treatment box 6. A flocculant solution cavity 36 is arranged on the upper part of the partition plate three 39. The upper middle part of the rear side of the base 1 is communicated with one end of an output pipe 8. The other end of the output pipe 8 passes through the treatment box 6 and extends to the bottom of the flocculant solution cavity 36. An electromagnetic control valve 9 is arranged on the output pipe 8.

[0057] When the residue treatment mechanism is started, after the paint mist is attached to the inner wall of the half shaft sleeve fittings, the linear slide rail 13 on the partition plate one 18 is reset. While the linear slide rail 13 is reset, it drives the semi-circular seat 14 and the sealing gasket 12 on it to be reset synchronously. Then, the residual paint mist remaining in the half shaft sleeve fittings and not attached to the inner wall enters the space above the partition plate one 18 in the base 1. At this time, the air pump 17 at the bottom of the partition plate one 18 is started, and the air pump 17 injects air into the space above the partition plate one 18 through the connecting pipe.

[0058] The residue treatment mechanism further includes a communicating pipe 5. A communicating pipe 5 is arranged on one side of the upper middle part of the rear end of the treatment box 6. The other end of the communicating pipe 5 is communicated with one side of the bottom end of the partition plate three 39. A plurality of mounting frames 37 are fixedly connected to the inner bottom of the treatment box 6 at equal intervals. Filter cotton plates 38 are arranged in the middle of the inner sides of the mounting frames 37. A plurality of discharge grooves 7 are arranged at equal intervals in the lower middle part of the side of the treatment box 6 away from the communicating pipe 5.

[0059] After a certain amount has been injected, the staff will open the electromagnetic control valve 9 on the output pipe 8, so that the air containing a small amount of residual paint mist in the upper space of the partition plate 18 enters the flocculant solution chamber 36 above the partition plate 39 through the output pipe 8, and the residual paint mist contained in the air is adsorbed by the flocculant solution in the flocculant solution chamber 36. After that, the air treated with the flocculant solution in the flocculant solution chamber 36 floats up from its solution and floats in the top space of the flocculant solution chamber 36.

[0060] Then, after preliminary treatment, the air is discharged into the space below the partition plate three 39 through the connecting pipe 5 on the processing box 6. After that, as the gas in the upper space of the partition plate 18 is continuously discharged, the gas squeezes the air at the bottom of the partition plate three 39 to move outward. While the air at the bottom of the partition plate three 39 is discharged outward, it is filtered layer by layer through the filter cotton plate 38 on the internal mounting frame 37, thereby filtering out the residual paint mist particles in the air. Finally, the air after multiple filtration treatments is discharged into the external environment through the discharge slot 7 on the processing box 6, thereby completing the multiple purification and filtration treatments of the residual paint mist.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automated painting device for automotive parts, characterized in that, including a base (1), which serves as the basic component of the overall device and is used for assembling and carrying each processing mechanism and its subordinate structural components; a closed seat (2), which is arranged on the top of the base (1) and is used to form a sealed processing space outside during the painting process of the half - shaft fitting; a sealing cover (10), which is arranged inside the closed seat (2) and is used to form a sealed processing space inside during the painting process of the half - shaft fitting; an installation guiding mechanism, which is arranged on the top of the base (1) and is used to guide and install the half - shaft fitting before the painting treatment; the installation guiding mechanism includes an outer disc seat (11). The outer disc seat (11) is arranged in the middle of the top end of the base (1). The inner disc seat (19) is rotatably connected to the middle of the inner side of the outer disc seat (11). A plurality of bottom limit ring seats (22) are circumferentially arranged near the edge of the top end of the inner disc seat (19). The bottom ends of the bottom limit ring seats (22) are fixedly connected with guiding pipes (23), and the bottom ends of the guiding pipes (23) penetrate through the inner disc seat (19) and extend downward. A partition plate two (28) is fixedly connected to the middle of the inner side of the sealing cover (10). A plurality of top limit grooves (33) are circumferentially arranged around the bottom of the partition plate two (28). An opening door (3) is arranged in the middle of the bottom end of the front side of the closed seat (2); an outer wall spraying mechanism, which is arranged inside the closed seat (2) and is used to spray the outer wall of the automotive half - shaft fitting after being processed by the installation guiding mechanism; a drainage and adhesion mechanism, which is arranged inside the sealing cover (10) and is used to drain and adhere the residual paint mist on the inner wall of the half - shaft fitting after being processed by the outer wall spraying mechanism; the drainage and adhesion mechanism includes an adjustment seat (29). The adjustment seat (29) is arranged in the middle of the partition plate two (28). An anti - detachment ring seat (31) is fixedly connected to the middle and lower part of the inner side of the adjustment seat (29). A metal closing plate (32) is arranged on the upper part of the anti - detachment ring seat (31). An electromagnetic seat (35) is arranged in the middle of the top end of the inner side of the adjustment seat (29). A plurality of guide through - holes (34) are circumferentially arranged in the middle and upper part of the adjustment seat (29). The guide through - holes (34) are used to conduct air and paint mist between the upper and lower parts of the partition plate two (28). A plurality of discharge ports (30) are circumferentially arranged around the middle of the partition plate two (28). The bottoms of the discharge ports (30) respectively correspond to the inside of the corresponding top limit grooves (33); a residual treatment mechanism, which is arranged at the rear side of the base (1) and is used to purify the residual paint mist after the half - shaft fitting is processed.

2. An automated painting device for automotive parts according to claim 1, characterized in that, The outer wall spraying mechanism includes a matching annular groove (40). The matching annular groove (40) is provided at the top near the edge of the outer disc base (11). A sealing seat (26) is slidably connected to the upper middle part of the inner side of the sealing cover (10). A cylinder (4) is arranged at the middle top of the top end of the closing seat (2). The top end of the rod body of the cylinder (4) is fixedly connected to the middle top of the sealing seat (26). A plurality of atomizing spray rows (20) are circumferentially arranged around the top of the outer disc base (11). A vacuum generator (21) is arranged at the middle lower part of one side of the outer wall of the sealing cover (10). The vacuum generator (21) is used to evacuate the space in the lower middle part of the inner side of the sealing cover (10) after it moves downwards.

3. An automated painting device for automotive parts according to claim 2, characterized in that, The outer wall spraying mechanism further includes a first partition plate (18). The first partition plate (18) is fixedly connected to the middle part of the inner side of the base (1). A transmission shaft (16) is fixedly connected to the middle bottom of the inner disc base (19). The bottom end of the transmission shaft (16) is rotatably connected to the middle top of the first partition plate (18). A driving motor (15) is arranged at the middle bottom of the first partition plate (18). The output end of the driving motor (15) passes through the first partition plate (18) and is connected to the middle bottom of the bottom end of the transmission shaft (16). An internal gear ring seat (24) is fixedly connected to the bottom of the outer disc base (11). Outer gear ring seats (25) are fixedly connected to the bottom of the outer walls of the guiding pipes (23).

4. An automated painting device for automotive parts according to claim 3, characterized in that, The drainage and attachment mechanism further includes a return spring (27). A plurality of return springs (27) are equidistantly arranged near the edges around the top of the second partition plate (28). The bottom ends of the return springs (27) are respectively connected to the corresponding positions at the bottom end of the sealing seat (26). Linear slide rails (13) are arranged on both sides of the middle top of the first partition plate (18). Semi-circular seats (14) are arranged at the top ends of the linear slide rails (13). Sealing rubber pads (12) are arranged on the tops of the semi-circular seats (14).

5. An automated painting device for automotive parts according to claim 3, characterized in that, The residue treatment mechanism includes an air pump (17). The air pump (17) is arranged at one side of the middle bottom of the first partition plate (18). The discharge end of the air pump (17) is communicated with the upper part of the first partition plate (18) through a connecting pipe. A treatment box (6) is arranged at the middle lower part of the rear side of the base (1). A third partition plate (39) is fixedly connected to the middle part of the inner side of the treatment box (6). A flocculant dissolution liquid chamber (36) is arranged at the upper part of the third partition plate (39). The rear side of the upper middle part of the base (1) is communicated with one end of an output pipe (8). The other end of the output pipe (8) passes through the treatment box (6) and extends to the bottom of the flocculant dissolution liquid chamber (36). An electromagnetic control valve (9) is arranged on the output pipe (8).

6. An automated painting device for automotive parts according to claim 5, characterized in that, The residual treatment mechanism further includes a connecting pipe (5). One side of the upper middle part at the rear end of the treatment box (6) is provided with a connecting pipe (5). The other end of the connecting pipe (5) is communicated with one side of the bottom end of the third partition plate (39). A plurality of mounting frames (37) are fixedly connected to the inner bottom of the treatment box (6) at equal intervals. Filter cotton plates (38) are arranged in the middle of the inner sides of the mounting frames (37). A plurality of discharge grooves (7) are opened at equal intervals in the lower middle part of the side of the treatment box (6) away from the connecting pipe (5).

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