Rotary type automobile bumper spraying device and spraying process thereof

Abstract

The rotary type automobile bumper spraying device comprises a base, a positioning mechanism is fixedly installed at the front end of the top of the base, a spraying mechanism is fixedly installed at the rear end of the top of the base, and a driving mechanism is fixedly installed at the position, located between the inner side of the spraying mechanism and the inner side of the positioning mechanism, of the top of the base; the positioning mechanism comprises a fixing disc, the fixing disc is fixedly installed at the front end of the base, during application of the technical scheme, through a transverse frame of the positioning mechanism and bumper containing modules at the two ends, rotation and exchange of the two modules are achieved through cooperation of a first motor, two bumpers can be placed at the same time during use, and when one bumper works at a spraying position, the two bumpers can be placed at the same time. And the other one can be used for synchronously loading or unloading without waiting for material replacement, so that continuous production is realized, the shutdown waiting time is reduced, the problems of multiple stations, large occupied area, low space utilization rate and incapability of continuous production of a spraying production line caused by a single station in the background technology are solved, and the overall operation efficiency of the production line is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile bumper spraying technology, in particular to a rotary automobile bumper spraying device and a spraying process thereof. BACKGROUND

[0002] In the field of automobile manufacturing, the spraying process of automobile bumpers is a key link to ensure their appearance quality and corrosion resistance. Currently, the existing automobile bumper spraying process generally adopts a single-station single-time placement of one bumper operation mode, that is, only one automobile bumper can be sprayed on one process station. This mode affects the overall operation efficiency and space utilization of the spraying production line to some extent. Chinese Patent No. CN208275657U discloses a spraying device for automobile bumpers. The device includes a conveying mechanism and a spraying mechanism. The conveying mechanism is composed of a conveying frame, a conveying slide rail, a positioning base plate, and a positioning tool. The spraying mechanism includes a spraying frame, a spraying guide rail, a spraying base, and a spray gun. The spraying base moves back and forth by a servo motor to achieve uniform spraying of automobile bumpers. Compared with traditional manual painting, the device improves spraying efficiency and quality, and the conveying mechanism can conveniently and quickly send the bumper to be sprayed to the working position for easy operation. However, the device has obvious defects in actual application. Only a single bumper can be placed during spraying, which requires more spraying stations on the spraying production line to meet production needs, resulting in a significant increase in production line floor space and a substantial reduction in space utilization. Moreover, the single-station single-time operation mode cannot achieve continuous production, severely restricting the improvement of overall production efficiency and making it difficult to adapt to large-scale batch production needs. The overall structure lacks flexible adjustment capability and cannot be adjusted according to different sizes of bumpers. Specifically, the spraying height cannot be adjusted flexibly. When the bumper is large, the equipment height needs to be lowered for easy operation, and when the bumper is small, the height of the positioning mechanism needs to be raised. The size of the positioning structure cannot be adjusted, making it difficult to adapt to the positioning needs of bumpers of different sizes. In addition, the direction, position, and angle of the spray head cannot be adjusted according to the size and shape of the bumper, making it difficult to ensure uniform and precise spraying of all areas during the spraying process. The overall adaptation performance is poor, and it cannot meet the diversified spraying needs. Therefore, it is necessary to improve the design. SUMMARY

[0003] To solve the above problems, the present application proposes a rotary automobile bumper spraying device and a spraying process thereof to more accurately solve the above-mentioned problems.

[0004] The present application is achieved by the following technical solutions: This invention proposes a rotary car bumper spraying device, including a base, a positioning mechanism fixedly installed at the front top of the base, a spraying mechanism fixedly installed at the rear top of the base, and a driving mechanism fixedly installed at the top of the base between the inner sides of the spraying mechanism and the positioning mechanism. The positioning mechanism includes a fixed plate, which is fixedly installed at the front end of the base. A first motor is fixedly installed at the bottom of the fixed plate. A longitudinal telescopic component is fixedly installed through the output end of the first motor through the fixed plate. A cross frame is fixedly installed at the top of the longitudinal telescopic component. A transverse telescopic component is fixedly installed at both ends of the cross frame. A bumper placement module is fixedly installed at the outer end of each transverse telescopic component.

[0005] Furthermore, the longitudinal telescopic component includes a turntable, which is rotatably connected to the top of the fixed plate. The output end of the first motor is connected to the bottom of the turntable. A sleeve is fixedly installed on the top of the turntable. A movable rod is slidably connected inside the sleeve. The top of the movable rod is fixedly connected to the middle of the bottom of the crossbar. A first screw is threaded to the upper end of one side of the sleeve. The end of the first screw passes through the sleeve. The first screw is a hand-tightening screw. Longitudinal limiting holes are linearly arranged at equal intervals on one side of the movable rod. The end of the first screw is inserted into the interior of one of the longitudinal limiting holes. The overall cross-sectional shape of the sleeve and the movable rod is a regular hexagon.

[0006] Furthermore, the lateral telescopic component includes a fixed base, which is fixedly installed at both ends of the cross frame. A rotating shaft is rotatably connected to the middle of the fixed base. Sleeve frames are fixedly installed on both sides of the top of the rotating shaft. The sleeve frames are fixedly installed on both sides of both ends of the cross frame. An extension plate is slidably connected inside the sleeve frame. The bumper placement module is fixedly installed on the outer end of the extension plate. A second screw is threaded to the bottom outer end of the sleeve frame. The end of the second screw passes through the sleeve frame. The second screw is also a hand-tightening screw. Lateral limiting holes are linearly arranged at equal intervals at the bottom of the extension plate. The end of the second screw is inserted into the interior of the lateral limiting holes.

[0007] Furthermore, a support frame is fixedly installed at the bottom of the base, and a waste paint collection tank is fixedly installed at the bottom of the support frame.

[0008] Furthermore, the bumper placement module includes a side rail, which is fixedly installed on the outer end of the extension plate. Both ends of the side rail are slidably connected to sliding blocks. A side limiting plate is fixedly installed on the outer end of the sliding block. A limiting arm is fixedly connected to the outer side of the sliding block. A third screw is threadedly connected to the outer end of the limiting arm. The end of the third screw passes through the limiting arm. The outer side of the side rail has locking holes arranged linearly at equal intervals. The third screw is also a hand-tightening screw. The end of the third screw is inserted into the inside of the locking hole.

[0009] Furthermore, the side of the side limiting plate is arc-shaped, and bumper positioning pins are fixedly connected to the inner side of the side limiting plate at equal intervals along the arrangement direction of the side limiting plate.

[0010] Furthermore, the driving mechanism includes a fixed plate and a driven wheel. The fixed plate is fixedly installed in the middle of the top of the base. A telescopic electric push rod is fixedly installed at the upper end of the fixed plate. A concave seat is fixedly installed at the output end of the telescopic electric push rod. A drive wheel is rotatably connected inside the concave seat. The driven wheel is fixedly installed at the bottom of the rotating shaft. A second motor is fixedly installed at the bottom of the concave seat. The output end of the second motor passes through the concave seat and is fixedly connected to the bottom of the drive wheel. The outer side of the drive wheel is in contact with the outer surface of the driven wheel near the end of the spraying mechanism.

[0011] Furthermore, the spraying mechanism includes a fixed arm, which is fixedly installed at the middle of the rear end of the base. A transverse electric push rod is fixedly installed at the top of the fixed arm, and a mounting base is fixedly installed at the end of the transverse electric push rod. A longitudinal electric push rod is fixedly installed at the top of the mounting base, and a spraying module is fixedly installed through the mounting base at the output end of the longitudinal electric push rod.

[0012] Furthermore, the spraying module includes a guide rail, which is fixedly installed at the bottom output end of a longitudinal electric push rod. A third motor is fixedly installed at one end of the guide rail, and a lead screw is fixedly installed through the guide rail at the output end of the third motor. A slider is threaded onto the outer surface of the lead screw, and a hinge frame is fixedly installed at the bottom of the slider. An adjusting wheel is rotatably connected inside the hinge frame, and a paint spray gun is fixedly installed at the bottom of the adjusting wheel. A delivery hose is fixedly installed at the input end of the paint spray gun, and the end of the delivery hose passes through a fixed arm and is connected to the output end of a pigment pump in an external paint supply device. A reset weight ball is fixedly installed at the bottom of the end of the delivery hose away from the paint spray gun. A fourth motor is fixedly installed on one side of the hinge frame, and the output end of the fourth motor is fixedly connected to one side of the adjusting wheel.

[0013] A rotary car bumper painting process includes the following steps: Step 1: Adjust the longitudinal telescopic component, locate the first screw, loosen the first screw, hold the movable rod and move it up and down to make the movable rod slide inside the sleeve to a suitable height, observe the position of the cross frame, and after the cross frame is in the appropriate position, align the first screw with the corresponding longitudinal limiting hole and insert it, and tighten the first screw to fix it. Step 2: Adjust the horizontal telescopic component, locate the second screw, loosen the second screw, grasp the extension plate and slide it horizontally inside the frame, adjust the spacing of the bumper placement modules at both ends of the cross frame, when the spacing is appropriate, align the second screw with the corresponding horizontal limit hole and insert it, tighten the second screw to fix it; Step 3: Adjust the bumper placement module, locate the third screw, loosen the third screw to disengage it from the locking hole, push the sliding block to slide inside the side rail, the sliding block will drive the limiting plate to move laterally, adjust the spacing of the side limiting plates, after the spacing is appropriate, turn the third screw to insert its end into the corresponding locking hole and tighten it to fix it, align the bumper positioning pin on the inside of the side limiting plate with the preset hole of the bumper and insert it; Step 4: Place the bumper and change its position. Pick up the bumper and place it on top of the bumper placement module. Ensure that the bumper is in the correct position. Start the first motor. The first motor drives the sleeve to rotate, and the sleeve drives the cross frame to rotate, so that the two bumper placement modules at both ends of the cross frame rotate and change their positions. Step 5: Start the drive mechanism. When the bumper placement module carrying the bumper to be painted moves to the bottom of the painting mechanism, start the drive mechanism. The telescopic electric push rod extends and pushes the concave seat to move to the rear, so that the drive wheel and the outer surface of the driven wheel are in contact. Start the second motor. The second motor drives the drive wheel to rotate. The drive wheel drives the driven wheel to rotate. The driven wheel drives the transverse telescopic component and the bumper placement module to rotate through the rotating shaft. Step Six: Start the spraying mechanism. Start the horizontal electric push rod, which pushes the mounting base to move laterally. Start the vertical electric push rod, which drives the spraying module to move up and down. Start the third motor, which drives the lead screw to rotate. The lead screw drives the slider to move along the guide rail. Start the fourth motor, which drives the adjusting wheel to rotate. The adjusting wheel drives the paint spray gun to adjust the angle. Start the paint pump of the external paint supply equipment, which delivers paint to the paint spray gun through the delivery hose. The paint spray gun begins spraying. Step 7: Post-spraying operation. After spraying is completed, turn off the spraying mechanism and drive mechanism, start the first motor to drive the sleeve to rotate, so that the sprayed product moves to the outside with the bumper placement module. Remove the sprayed product to complete the unloading. Place the new bumper to be sprayed on the unloaded bumper placement module to complete the loading. Then repeat steps 4 to 6 to continue the spraying production.

[0014] The beneficial effects of this invention are: 1. During the application of this technical solution, by setting a crossbeam and placing bumper modules at both ends in the positioning mechanism, and cooperating with the first motor drive to rotate and change the position of the two modules, two bumpers can be placed at the same time during use. When one bumper is in the spraying position to receive spraying work, the module where the other bumper is located can simultaneously perform loading or unloading operations, without waiting for the spraying to be completed before material replacement, thereby achieving the effect of continuous production, effectively reducing downtime during the production process, and solving the problem in the background technology that single-station placement leads to the spraying production line needing to set up many stations, occupying a large area, having low space utilization and being unable to achieve continuous production, thus significantly improving the overall operating efficiency of the production line; 2. During the application of this technical solution, by setting up longitudinal telescopic components, transverse telescopic components, and a bumper placement module, the longitudinal telescopic components adjust the positioning height through the cooperation of the movable rod and the sleeve. The transverse telescopic components adjust the module spacing by sliding the extension plate and the sleeve frame. The bumper placement module adapts to bumpers of different widths by sliding the sliding block and the side rail. At the same time, the transverse electric push rod, longitudinal electric push rod, and adjusting wheel in the spraying mechanism adjust the transverse position, height, and angle of the spray gun, so that it can flexibly adapt to bumpers of different sizes and shapes during use. This achieves the effect of greatly improving the adaptability of the device, solving the problem that the existing technology cannot adjust the relevant structure according to the size of the bumper and has poor adaptability, and meeting the diverse spraying production needs. 3. During the application of this technical solution, the telescopic electric push rod in the drive mechanism pushes the drive wheel and driven wheel to engage, and the second motor drives the bumper placement module to rotate, causing the bumper to rotate during the spraying process. At the same time, the spraying mechanism adjusts the position and angle of the spray gun in multiple dimensions, so that the bumper can be sprayed evenly in all directions during use, without the need for manual flipping of the bumper, reducing errors caused by manual intervention. At the same time, the continuous production mode and good adaptability work together to further shorten the production cycle and ensure the stability of the spraying quality, thereby improving the spraying efficiency and quality, and solving the problems of low spraying efficiency, unstable quality and difficulty in meeting diverse production needs of existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a bottom view of the base structure of the present invention; Figure 5 This is a bottom view schematic diagram of the spraying mechanism of the present invention; Figure 6For the present invention Figure 2 A magnified structural diagram at point A; Figure 7 For the present invention Figure 3 A magnified structural diagram at point B; Figure 8 For the present invention Figure 4 A magnified structural diagram at point C.

[0016] In the diagram: 1. Base; 2. Positioning mechanism; 21. Fixed plate; 22. First motor; 23. Longitudinal telescopic component; 231. Turntable; 232. Sleeve; 233. Movable rod; 234. First screw; 235. Longitudinal limiting hole; 24. Cross frame; 25. Lateral telescopic component; 251. Fixed seat; 252. Rotating shaft; 253. Sleeve frame; 254. Extension plate; 255. Second screw; 256. Lateral limiting hole; 26. Bumper placement module; 261. Side rail; 262. Sliding block; 263. Side limiting plate; 264. Limiting arm; 265. Third screw; 266. Locking hole; 267. 3. Bumper positioning pin; 4. Spraying mechanism; 5. Fixed arm; 6. Lateral electric push rod; 7. Mounting seat; 8. Longitudinal electric push rod; 9. Spraying module; 10. Guide rail; 11. Third motor; 2. Lead screw; 32. Slider; 43. Hinge frame; 54. Adjusting wheel; 6. Paint spray gun; 75. Delivery hose; 8. Reset weight ball; 9. Fourth motor; 10. Drive mechanism; 11. Fixed plate; 22. Driven wheel; 33. Telescopic electric push rod; 44. Concave seat; 55. Drive wheel; 6. Second motor; 7. Support frame; 8. Waste paint collection tank. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0018] A rotary car bumper spraying device includes a base 1, a positioning mechanism 2 fixedly installed at the top front end of the base 1, a spraying mechanism 3 fixedly installed at the top rear end of the base 1, and a drive mechanism 4 fixedly installed at the top of the base 1 between the spraying mechanism 3 and the positioning mechanism 2. The positioning mechanism 2 includes a fixed plate 21, which is fixedly installed at the front end of the base 1. A first motor 22 is fixedly installed at the bottom of the fixed plate 21. A longitudinal telescopic member 23 is fixedly installed through the output end of the first motor 22 through the fixed plate 21. A crossbeam 24 is fixedly installed at the top of the longitudinal telescopic member 23. Lateral telescopic members 25 are fixedly installed at both ends of the crossbeam 24. Bumper placement modules 26 are fixedly installed at the outer ends of the lateral telescopic members 25. During application, the device positions and places the car bumper through the positioning mechanism 2. The fixed plate 21 provides the mounting base for the positioning mechanism 2. After the first motor 22 is started, its output end drives the longitudinal telescopic member 23 to rotate, thereby causing the crossbeam 24 and the lateral telescopic members 25 and bumper placement modules 26 at both ends to rotate accordingly. The height of the longitudinal telescopic member 23 can be adjusted to adapt to different heights. The bumper has a lateral telescopic component 25 that can change the spacing of the bumper placement module 26 to accommodate bumpers of different widths. The bumper placement module 26 is used to stably place the bumper. Through this adjustment, bumpers of different specifications can be accurately positioned to avoid displacement during spraying and ensure spraying accuracy. When one bumper placement module 26 rotates with the bumper under the spraying mechanism 3, it can accept the spraying operation, while the other bumper placement module 26 is on the outside, at which time loading or unloading operations can be performed without waiting for the current spraying to be completed, realizing continuous production, reducing downtime, and improving production efficiency. The drive mechanism 4 can work in conjunction at this time to provide power for the rotation of the bumper, ensuring that the bumper can be adjusted as needed during the spraying process, and cooperate with the spraying mechanism 3 to complete all-round spraying, further improving the spraying effect.

[0019] Combination Figures 1-4As shown, the longitudinal telescopic component 23 includes a turntable 231, which is rotatably connected to the top of the fixed plate 21. The output end of the first motor 22 is connected to the bottom of the turntable 231. A sleeve 232 is fixedly installed on the top of the turntable 231. A movable rod 233 is slidably connected inside the sleeve 232. The top of the movable rod 233 is fixedly connected to the middle of the bottom of the cross frame 24. A first screw 234 is threaded to the upper end of one side of the sleeve 232. The end of the first screw 234 passes through the sleeve 232. The first screw 234 is a hand-tightening screw. Longitudinal limiting holes 235 are linearly arranged at equal intervals on one side of the movable rod 233. The end of the first screw 234 is inserted into the interior of one of the longitudinal limiting holes 235. The overall cross-sectional shape of the inside of the sleeve 232 and the movable rod 233 is positive. The hexagonal transverse telescopic component 25 includes a fixed base 251, which is fixedly installed at both ends of the cross frame 24. A rotating shaft 252 is rotatably connected to the middle of the fixed base 251. A sleeve frame 253 is fixedly installed on both sides of the top of the rotating shaft 252. The sleeve frame 253 is fixedly installed on both sides of both ends of the cross frame 24. An extension plate 254 is slidably connected inside the sleeve frame 253. A bumper placement module 26 is fixedly installed on the outer end of the extension plate 254. A second screw 255 is threadedly connected to the bottom outer end of the sleeve frame 253. The end of the second screw 255 passes through the sleeve frame 253. The second screw 255 is also a hand-tightening screw. The bottom of the extension plate 254 has transverse limiting holes 256 arranged linearly at equal intervals. The end of the second screw 255 is inserted into the transverse limiting holes 256.

[0020] In the above-described embodiments of this application, during the operation of this device, the longitudinal telescopic member 23 rotates through the connection between the turntable 231 and the output end of the first motor 22. When height adjustment is required, the hand-tightened first screw 234 is loosened, causing its end to disengage from the longitudinal limiting hole 235 on the movable rod 233. Since the inside of the sleeve 232 and the cross-section of the movable rod 233 are regular hexagons, the movable rod 233 can slide stably within the sleeve 232 without rotation. After sliding to a suitable height, the first screw 234 is reinserted into the corresponding longitudinal limiting hole 235 and tightened to fix the position of the movable rod 233, thereby adjusting the height of the crossbeam 24. This design makes height adjustment convenient and positioning stable, and can quickly adapt to the placement requirements of bumpers of different heights. In the transverse telescopic component 25, the fixed base 251 provides support for the rotating shaft 252. When it is necessary to adjust the spacing of the bumper placement module 26, loosen the hand-tightened second screw 255 so that its end is disengaged from the transverse limiting hole 256 at the bottom of the extension plate 254. The extension plate 254 can slide within the sleeve 253 to change the distance between it and the cross frame 24. After adjusting to a suitable spacing, insert the second screw 255 into the corresponding transverse limiting hole 256 and tighten it to fix the extension plate 254, thereby changing the spacing of the bumper placement module 26 to adapt to bumpers of different widths. The entire adjustment process does not require additional tools, making the operation simple and efficient. This improves the device's adaptability to bumpers of different specifications, ensures accurate positioning of the bumper, and provides a stable foundation for subsequent painting operations. Example 2

[0021] Combination Figures 1-4 and Figures 6-8 As shown, the bumper placement module 26 includes a side rail 261, which is fixedly installed on the outer end of the extension plate 254. Both ends of the side rail 261 are slidably connected to sliding blocks 262. The outer end of the sliding block 262 is fixedly installed with a side limiting plate 263. The outer side of the sliding block 262 is fixedly connected to a limiting arm 264. The outer end of the limiting arm 264 is threadedly connected to a third screw 265. The end of the third screw 265 passes through the limiting arm 264. The outer side of the side rail 261 is provided with locking holes 266 arranged linearly at equal intervals. The third screw 265 is also a hand-tightening screw. The end of the third screw 265 is inserted into the inside of the locking hole 266. The overall side shape of the side limiting plate 263 is arc-shaped. The inner side of the side limiting plate 263 is fixedly connected with bumper positioning pins 267 at equal intervals along the arrangement direction of the side limiting plate 263.

[0022] In the technical solutions described in the embodiments of this application, during the application of this device, when it is necessary to place bumpers of different specifications, for the bumper placement module 26, the hand-tightened third screw 265 can be loosened first, so that its end is disengaged from the locking hole 266 on the outside of the side rail 261. At this time, the sliding block 262 can slide inside the side rail 261, driving the side limiting plate 263 to move synchronously. According to the width of the bumper, the distance between the two side limiting plates 263 is adjusted until it is adapted to the bumper. Then, the third screw 265 is reinserted into the corresponding locking hole 266 and tightened. The limiting arm 264 fixes the position of the sliding block 262, thereby fixing the side limiting plate 263. Since the side of the side limiting plate 263 is arc-shaped, it can better fit the shape of the bumper. The bumper positioning pin 267 on its inner side can be inserted into the preset hole of the bumper, further enhancing the fixing effect of the bumper. The entire adjustment process does not require the use of other tools, and the operation is simple and quick. It can quickly adapt to bumpers of different widths, ensuring that the bumper will not shift or shake after placement, providing a stable foundation for subsequent painting operations and improving the device's adaptability to diverse bumpers.

[0023] Combination Figures 1-3 and Figure 7 As shown, a support frame 5 is fixedly installed at the bottom of the base 1, and a waste paint collection tank 6 is fixedly installed at the bottom of the support frame 5. The drive mechanism 4 includes a fixed plate 41 and a driven wheel 42. The fixed plate 41 is fixedly installed at the top middle of the base 1. A telescopic electric push rod 43 is fixedly installed at the upper end of the fixed plate 41. A concave seat 44 is fixedly installed at the output end of the telescopic electric push rod 43. A drive wheel 45 is rotatably connected inside the concave seat 44. The driven wheel 42 is fixedly installed at the bottom of the rotating shaft 252. A second motor 46 is fixedly installed at the bottom of the concave seat 44. The output end of the second motor 46 passes through the concave seat 44 and is fixedly connected to the bottom of the drive wheel 45. The outer side of the drive wheel 45 and the outer surface of the driven wheel 42 near the end of the spraying mechanism 3 are in contact with each other.

[0024] In the above-described embodiments of the present application, during the operation of this device, the support frame 5 at the bottom of the base 1 provides stable support for the overall structure, ensuring that the device will not shake or shift during operation, thus providing a foundation for the stable operation of each mechanism. Waste paint generated during the spraying process drips downwards and eventually falls into the waste paint collection pool 6 at the bottom of the support frame 5, facilitating centralized treatment of the waste paint and preventing it from flowing randomly and polluting the working environment, keeping the work area clean. When the drive mechanism 4 is working, the fixed plate 41 provides installation support for the telescopic electric push rod 43. When it is necessary to drive the bumper to rotate, the telescopic electric push rod 43 is activated, and its output end... The concave seat 44 is moved, causing the drive wheel 45 inside the concave seat 44 to come into contact with the outer surface of the driven wheel 42. Then, the second motor 46 starts, and its output end drives the drive wheel 45 to rotate. Since the drive wheel 45 and the driven wheel 42 are in contact, the driven wheel 42 will rotate synchronously with the drive wheel 45, and then drive the relevant components to operate through the rotating shaft 252. This driving method can realize the stable rotation of the bumper, ensuring that all parts of the bumper can be evenly sprayed during the spraying process. Moreover, the contact and separation of the drive wheel 45 and the driven wheel 42 can be flexibly controlled by the telescopic electric push rod 43, which is convenient to operate and improves the controllability and flexibility of the spraying process, ensuring that the spraying operation can be carried out efficiently and orderly. Example 3

[0025] Combination Figures 1-5 As shown, the spraying mechanism 3 includes a fixed arm 31, which is fixedly installed at the rear middle of the base 1. A transverse electric push rod 32 is fixedly installed on the top of the fixed arm 31, and a mounting base 33 is fixedly installed at the end of the transverse electric push rod 32. A longitudinal electric push rod 34 is fixedly installed on the top of the mounting base 33. A spraying module 35 is fixedly installed through the mounting base 33 at the output end of the longitudinal electric push rod 34. The spraying module 35 includes a guide rail 351, which is fixedly installed at the bottom output end of the longitudinal electric push rod 34. A third motor 352 is fixedly installed at one end of the guide rail 351, and a lead screw 353 is fixedly installed through the guide rail 351 at the output end of the third motor 352. A slider 354 is threadedly connected to the outer surface of 53. A hinge frame 355 is fixedly installed at the bottom of the slider 354. An adjusting wheel 356 is rotatably connected inside the hinge frame 355. A paint spray gun 357 is fixedly installed at the bottom of the adjusting wheel 356. A delivery hose 358 is fixedly installed at the input end of the paint spray gun 357. The end of the delivery hose 358 passes through the fixed arm 31 and is connected to the output end of the pigment pump of the external paint supply equipment. A reset weight ball 359 is fixedly installed at the bottom of the end of the delivery hose 358 away from the paint spray gun 357. A fourth motor 310 is fixedly installed on one side of the hinge frame 355. The output end of the fourth motor 310 is fixedly connected to one side of the adjusting wheel 356.

[0026] In the above-described embodiments of the present application, during the operation of this device, the spraying mechanism 3 starts working, the fixed arm 31 provides stable support for the entire spraying mechanism 3, the transverse electric push rod 32 is activated, and its output end drives the mounting base 33 to move laterally, thereby adjusting the transverse position of the spraying module 35 to adapt to the transverse dimensions of the bumper. The longitudinal electric push rod 34 at the top of the mounting base 33 is activated, and its output end passes through the mounting base 33 to drive the spraying module 35 to move up and down, thereby adjusting the spraying height to meet the spraying requirements of bumpers of different heights. In the spraying module 35, the third motor 352 at one end of the guide rail 351 is activated, and its output end drives the lead screw 353 to rotate. The slider 354, which is threadedly connected to the lead screw 353, slides along the guide rail 351, thereby changing the horizontal position of the paint spray gun 357 to ensure that the water on the bumper can be covered. In the flat area, the fourth motor 310 on one side of the hinge frame 355 starts, and its output end drives the adjusting wheel 356 to rotate inside the hinge frame 355. The paint spray gun 357 at the bottom of the adjusting wheel 356 adjusts its angle accordingly, which can accurately align with different parts of the bumper. The paint spray gun 357 is connected to the pigment pump of the external paint supply equipment through the delivery hose 358. The pigment pump delivers paint to the paint spray gun 357 through the delivery hose 358. The reset weight ball 359 at the bottom of the end of the delivery hose 358 away from the paint spray gun 357 keeps the delivery hose 358 in a drooping state, avoiding the impact of movement and entanglement on the paint delivery. These adjustment methods work together to allow the paint spray gun 357 to flexibly adjust its position and angle, ensuring comprehensive and uniform spraying of the bumper, improving the accuracy and efficiency of spraying, and meeting the spraying needs of bumpers of different specifications.

[0027] A rotary car bumper painting process includes the following steps: Step 1: Adjust the longitudinal telescopic component 23, locate the first screw 234, loosen the first screw 234, hold the movable rod 233 and move it up and down, so that the movable rod 233 slides inside the sleeve 232 to a suitable height, observe the position of the cross frame 24, and after the cross frame 24 is in the appropriate position, align the first screw 234 with the corresponding longitudinal limiting hole 235 and insert it, and tighten the first screw 234 to fix it; Step 2: Adjust the horizontal telescopic component 25, locate the second screw 255, loosen the second screw 255, grasp the extension plate 254 and slide it horizontally inside the sleeve frame 253, adjust the spacing of the bumper placement modules 26 at both ends of the cross frame 24, and when the spacing is appropriate, align the second screw 255 with the corresponding horizontal limiting hole 256 and insert it, then tighten the second screw 255 to fix it. Step 3: Adjust the bumper placement module 26, locate the third screw 265, loosen the third screw 265 to disengage it from the locking hole 266, push the sliding block 262 to slide inside the side rail 261, the sliding block 262 drives the limiting plate to move laterally, adjust the spacing of the side limiting plates 263, after the spacing is appropriate, turn the third screw 265 to insert its end into the corresponding locking hole 266 and tighten it to fix it, align the bumper positioning pin 267 on the inside of the side limiting plate 263 with the preset hole position of the bumper and insert it; Step 4: Place the bumper and change its position. Pick up the bumper and place it on top of the bumper placement module 26. Ensure that the bumper is in the correct position. Start the first motor 22. The first motor 22 drives the sleeve 232 to rotate. The sleeve 232 drives the cross frame 24 to rotate, so that the two bumper placement modules 26 at both ends of the cross frame 24 rotate and change their positions. Step 5: Start the drive mechanism 4. When the bumper placement module 26 carrying the bumper to be painted moves to the bottom of the painting mechanism 3, start the drive mechanism 4. The telescopic electric push rod 43 extends and pushes the concave seat 44 to move to the rear side, so that the drive wheel 45 is in contact with the outer surface of the driven wheel 42. Start the second motor 46. The second motor 46 drives the drive wheel 45 to rotate. The drive wheel 45 drives the driven wheel 42 to rotate. The driven wheel 42 drives the transverse telescopic component 25 and the bumper placement module 26 to rotate through the rotating shaft 252. Step Six: Start the spraying mechanism 3, start the horizontal electric push rod 32, the horizontal electric push rod 32 pushes the mounting base 33 to move horizontally, start the vertical electric push rod 34, the vertical electric push rod 34 drives the spraying module 35 to move up and down, start the third motor 352, the third motor 352 drives the lead screw 353 to rotate, the lead screw 353 drives the slider 354 to move along the guide rail 351, start the fourth motor 310, the fourth motor 310 drives the adjusting wheel 356 to rotate, the adjusting wheel 356 drives the paint spray gun 357 to adjust the angle, start the paint pump of the external paint supply equipment, the paint pump delivers paint to the paint spray gun 357 through the delivery hose 358, and the paint spray gun 357 begins spraying; Step 7: Post-spraying operation. After spraying is completed, turn off the spraying mechanism 3 and the drive mechanism 4, start the first motor 22 to drive the sleeve 232 to rotate, so that the sprayed product moves to the outside with the bumper placement module 26, remove the sprayed product to complete the unloading, place the new bumper to be sprayed on the unloaded bumper placement module 26 to complete the loading, and then repeat steps 4 to 6 to continue the spraying production.

[0028] The operating principle and advantages of this invention are as follows: During application, the device first positions the car bumper using the positioning mechanism 2. Specifically, the longitudinal telescopic component 23 needs to be adjusted according to the size of the bumper. First, loosen the first screw 234 and move the movable rod 233 up and down, causing it to slide flexibly to a suitable height inside the sleeve 232, placing the crossbeam 24 in the appropriate position. Then, insert the first screw 234 into the corresponding longitudinal limiting hole 235 to fix it, thereby adjusting the positioning height and allowing the device to adapt to bumper placement requirements of different heights. Next, adjust the transverse telescopic component 25, loosen the second screw 255, and adjust the extension plate 254 to slide laterally inside the sleeve 253. This changes the spacing between the bumper placement modules 26 at both ends of the crossbeam 24 to accommodate bumpers of different widths. Finally, insert the second screw 255 into the corresponding transverse limiting hole 25. 6. Fixing: This adjustment process allows the device to flexibly handle bumpers of different widths during use. After completing the longitudinal and lateral adjustments, in the bumper placement module 26, first loosen the third screw 265 to disengage it from the locking hole 266. At this time, adjust the sliding block 262 to slide inside the side rail 261, causing the limiting plate to move laterally, thereby flexibly adjusting the spacing of the side limiting plates 263. Move the limiting arm 264 to accurately adjust the spacing of the side limiting plates 263. It will also appropriately adjust the spacing between the limiting plates according to the different widths of the bumpers. After the spacing of the limiting plates is adjusted, tighten the third screw 265 to rotate, causing the end of the third screw 265 to insert into the corresponding locking hole 266 for fixing. At the same time, the bumper positioning pin 267 on the inner side of the side limiting plate 263 is inserted into the preset hole of the bumper to achieve precise positioning and effectively prevent the bumper from shifting during the spraying process, which would affect the spraying quality.

[0029] After adjustment and adaptation, the bumper is placed on top of the bumper placement module 26. At this time, the bumper is located at the top of the bumper positioning line inside the limit plate. Then, the first motor 22 is started to drive the sleeve 232 to rotate. The rotation of the sleeve 232 will adjust the two bumper placement modules 26 at both ends of its crossbeam 24 to rotate and exchange positions. Through the rotation adjustment of the two bumper placement modules 26 by the first motor 22, the bumpers can be rotated to the bottom of the spraying mechanism 3 in sequence, thereby realizing continuous and uninterrupted production and processing. During the spraying period, the external bumper placement module 26 can simultaneously perform loading and unloading operations, thus realizing continuous and uninterrupted production and processing, further improving the production and processing efficiency of the equipment. When the two bumpers are placed... After the module 26 is repositioned, the bumper placement module 26 carrying the bumper to be painted will move to the bottom of the painting mechanism 3. At this time, the drive mechanism 4 is started, and the telescopic electric push rod 43 pushes the concave seat 44 to move to the rear. The rearward movement of the concave seat 44 will cause the drive wheel 45 to come into contact with the driven wheel 42. Then, the second motor 46 drives the drive wheel 45 to rotate, and the driven wheel 42 rotates accordingly. In turn, the lateral telescopic member 25 and the bumper placement module 26 are rotated through the rotating shaft 252, realizing the rotation of the bumper. Through such rotation adjustment, the bumper placed on the top of the bumper placement module 26 can flexibly cooperate with the painting mechanism 3 to complete all-round painting, so that the device does not need to manually flip the bumper during the painting process, improving the uniformity and efficiency of the painting.

[0030] When the spraying mechanism 3 is working, the transverse electric push rod 32 pushes the mounting base 33 to move laterally, thereby adjusting the lateral position of the paint spray gun 357; the longitudinal electric push rod 34 drives the spraying module 35 to move up and down, thereby adjusting the spraying height. This allows the device to flexibly adjust the spraying height according to the longitudinal dimensions of the bumper during use. At the same time, the third motor 352 is started to drive the lead screw 353 to rotate. The rotation of the lead screw 353 drives the slider 354 to move along the guide rail 351, thereby changing the horizontal position of the paint spray gun 357. During the spraying process, the fourth motor 310 can also be started to drive the adjusting wheel 356 to rotate. The paint spray gun 357 can be adjusted by rotating the adjusting wheel 356. The angle of the spray gun 357 ensures that the nozzle direction is adapted to the shape of the bumper. Through these adjustment functions, the paint can accurately cover all areas of the bumper. In addition, the delivery hose 358 is connected to the paint pump of the external paint supply equipment. When the paint pump is running, it will deliver the paint from the external paint supply equipment to the paint spray gun 357. The reset weight ball 359 can keep the delivery hose 358 hanging down to avoid tangling and ensure smooth paint delivery. The base 1 provides the installation foundation for each mechanism, and the support frame 5 supports the entire device to ensure the stability of the device operation. The waste paint collection pool 6 collects the waste paint dripping during the spraying process for centralized treatment and reduces pollution to the working environment.

[0031] As can be seen, this device, through the bumper placement modules 26 at both ends of the crossbeam 24, can simultaneously place two bumpers. Combined with the rotation and conveying of the drive mechanism 4, continuous spraying is achieved, thereby reducing the number of spraying stations, lowering the production line footprint, and improving space utilization. This solves the problems of low efficiency and poor space utilization caused by single-station placement in the prior art. Furthermore, the adjustable functions of the longitudinal telescopic component 23, the transverse telescopic component 25, and the bumper placement module 26 can accommodate bumpers of different sizes. The electric push rods and adjusting wheels 356 in the spraying mechanism 3 enable flexible adjustment of spraying height, nozzle position, and angle, solving the problem of poor adaptability in existing technologies, meeting diverse spraying needs, and ensuring spraying quality while improving spraying efficiency.

[0032] Of course, the present invention may have many other embodiments. Based on this embodiment, other embodiments obtained by those skilled in the art without any creative effort are all within the scope of protection of the present invention.

Claims

1. A rotary car bumper spraying device, characterized in that, Includes a base (1), a positioning mechanism (2) is fixedly installed at the front end of the top of the base (1), a spraying mechanism (3) is fixedly installed at the rear end of the top of the base (1), and a driving mechanism (4) is fixedly installed between the inner sides of the spraying mechanism (3) and the positioning mechanism (2) at the top of the base (1). The positioning mechanism (2) includes a fixed plate (21), which is fixedly installed at the front end of the base (1). A first motor (22) is fixedly installed at the bottom of the fixed plate (21). A longitudinal telescopic member (23) is fixedly installed through the fixed plate (21) at the output end of the first motor (22). A cross frame (24) is fixedly installed at the top of the longitudinal telescopic member (23). A transverse telescopic member (25) is fixedly installed at both ends of the cross frame (24). A bumper placement module (26) is fixedly installed at the outer end of the transverse telescopic member (25).

2. The rotary car bumper spraying device according to claim 1, characterized in that, The longitudinal telescopic component (23) includes a turntable (231), which is rotatably connected to the top of the fixed disk (21). The output end of the first motor (22) is connected to the bottom of the turntable (231). A sleeve (232) is fixedly installed on the top of the turntable (231). A movable rod (233) is slidably connected inside the sleeve (232). The top of the movable rod (233) is fixedly connected to the middle of the bottom of the crossbar (24). The sleeve (232) has... A first screw (234) is threaded to the upper end of one side. The end of the first screw (234) passes through the sleeve (232). The first screw (234) is a hand-tight screw. The movable rod (233) has longitudinal limiting holes (235) arranged linearly at equal intervals on one side. The end of the first screw (234) is inserted into the interior of a longitudinal limiting hole (235). The overall cross-sectional shape of the sleeve (232) and the movable rod (233) is a regular hexagon.

3. The rotary car bumper spraying device according to claim 2, characterized in that, The lateral telescopic component (25) includes a fixed base (251), which is fixedly installed at both ends of the cross frame (24). A rotating shaft (252) is rotatably connected to the middle of the fixed base (251). A sleeve frame (253) is fixedly installed on both sides of the top of the rotating shaft (252). The sleeve frame (253) is fixedly installed on both sides of both ends of the cross frame (24). An extension plate (254) is slidably connected inside the sleeve frame (253). The bumper placement mold The assembly (26) is fixedly installed on the outer end of the extension plate (254). The bottom outer end of the sleeve (253) is threaded with a second screw (255). The end of the second screw (255) passes through the sleeve (253). The second screw (255) is also a hand-tightening screw. The bottom of the extension plate (254) is provided with transverse limiting holes (256) arranged linearly at equal intervals. The end of the second screw (255) is inserted into the transverse limiting hole (256).

4. The rotary car bumper spraying device according to claim 3, characterized in that, A support frame (5) is fixedly installed at the bottom of the base (1), and a waste paint collection tank (6) is fixedly installed at the bottom of the support frame (5).

5. A rotary car bumper spraying device according to claim 3, characterized in that, The bumper placement module (26) includes a side rail (261), which is fixedly installed on the outer end of the extension plate (254). Both ends of the side rail (261) are slidably connected to sliding blocks (262). The outer end of the sliding block (262) is fixedly installed with a side limiting plate (263). The outer side of the sliding block (262) is fixedly connected to a limiting arm (264). The outer end of the limiting arm (264) is threadedly connected to a third screw (265). The end of the third screw (265) passes through the limiting arm (264). The outer side of the side rail (261) is provided with locking holes (266) arranged linearly at equal intervals. The third screw (265) is also set as a hand-tightening screw. The end of the third screw (265) is inserted into the inside of the locking hole (266).

6. A rotary car bumper spraying device according to claim 5, characterized in that, The side of the side limiting plate (263) is arc-shaped, and the inner side of the side limiting plate (263) is fixedly connected with bumper positioning pins (267) at equal intervals along the arrangement direction of the side limiting plate (263).

7. A rotary car bumper spraying device according to claim 3, characterized in that, The drive mechanism (4) includes a fixed plate (41) and a driven wheel (42). The fixed plate (41) is fixedly installed in the middle of the top of the base (1). A telescopic electric push rod (43) is fixedly installed at the upper end of the fixed plate (41). A concave seat (44) is fixedly installed at the output end of the telescopic electric push rod (43). A drive wheel (45) is rotatably connected inside the concave seat (44). The driven wheel (42) is fixedly installed at the bottom of the rotating shaft (252). A second motor (46) is fixedly installed at the bottom of the concave seat (44). The output end of the second motor (46) passes through the bottom of the concave seat (44) and is fixedly connected to the bottom of the drive wheel (45). The outer side of the drive wheel (45) and the outer surface of the driven wheel (42) near the end of the spraying mechanism (3) are in contact with each other.

8. A rotary car bumper spraying device according to claim 7, characterized in that, The spraying mechanism (3) includes a fixed arm (31), which is fixedly installed at the middle of the rear end of the base (1). A horizontal electric push rod (32) is fixedly installed at the top of the fixed arm (31), and a mounting base (33) is fixedly installed at the end of the horizontal electric push rod (32). A longitudinal electric push rod (34) is fixedly installed at the top of the mounting base (33), and a spraying module (35) is fixedly installed at the output end of the longitudinal electric push rod (34) through the mounting base (33).

9. A rotary car bumper spraying device according to claim 8, characterized in that, The spraying module (35) includes a guide rail (351), which is fixedly installed at the bottom output end of a longitudinal electric push rod (34). A third motor (352) is fixedly installed at one end of the guide rail (351). A lead screw (353) is fixedly installed through the guide rail (351) at the output end of the third motor (352). A slider (354) is threaded onto the outer surface of the lead screw (353). A hinge frame (355) is fixedly installed at the bottom of the slider (354). An adjusting wheel (356) is rotatably connected inside the frame. A paint spray gun (357) is fixedly installed at the bottom of the adjusting wheel (356). A delivery hose (358) is fixedly installed at the input end of the paint spray gun (357). A reset weight ball (359) is fixedly installed at the bottom of the end of the delivery hose (358) away from the paint spray gun (357). A fourth motor (310) is fixedly installed on one side of the hinge frame (355). The output end of the fourth motor (310) is fixedly connected to one side of the adjusting wheel (356).

10. A rotary car bumper painting process, employing the rotary car bumper painting device according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Adjust the longitudinal telescopic component (23), locate the first screw (234), loosen the first screw (234), hold the movable rod (233) and move it up and down, so that the movable rod (233) slides inside the sleeve (232) to a suitable height, observe the position of the cross frame (24), and after the cross frame (24) is in the appropriate position, align the first screw (234) with the corresponding longitudinal limiting hole (235) and insert it, and tighten the first screw (234) to fix it; Step 2: Adjust the horizontal telescopic component (25), locate the second screw (255), loosen the second screw (255), grasp the extension plate (254) and slide it horizontally inside the sleeve frame (253), adjust the spacing of the bumper placement modules (26) at both ends of the cross frame (24), when the spacing is appropriate, align the second screw (255) with the corresponding horizontal limiting hole (256) and insert it, tighten the second screw (255) to fix it; Step 3: Adjust the bumper placement module (26), locate the third screw (265), loosen the third screw (265) to disengage it from the locking hole (266), push the sliding block (262) to slide inside the side rail (261), the sliding block (262) drives the limiting plate to move laterally, adjust the spacing of the side limiting plates (263), after the spacing is appropriate, turn the third screw (265) to insert its end into the corresponding locking hole (266) and tighten it, align the bumper positioning pin (267) inside the side limiting plate (263) with the preset hole of the bumper and insert it; Step 4: Place the bumper and change its position. Pick up the bumper and place it on top of the bumper placement module (26). Ensure that the bumper is in the correct position. Start the first motor (22). The first motor (22) drives the sleeve (232) to rotate. The sleeve (232) drives the cross frame (24) to rotate, so that the two bumper placement modules (26) at both ends of the cross frame (24) rotate and change their positions. Step 5: Start the drive mechanism (4). When the bumper placement module (26) carrying the bumper to be painted moves to the bottom of the painting mechanism (3), start the drive mechanism (4). The telescopic electric push rod (43) extends and pushes the concave seat (44) to move to the rear side, so that the drive wheel (45) and the outer surface of the driven wheel (42) are in contact. Start the second motor (46). The second motor (46) drives the drive wheel (45) to rotate. The drive wheel (45) drives the driven wheel (42) to rotate. The driven wheel (42) drives the transverse telescopic component (25) and the bumper placement module (26) to rotate through the rotating shaft (252). Step 6: Start the spraying mechanism (3), start the horizontal electric push rod (32), the horizontal electric push rod (32) pushes the mounting base (33) to move horizontally, start the vertical electric push rod (34), the vertical electric push rod (34) drives the spraying module (35) to move up and down, start the third motor (352), the third motor (352) drives the lead screw (353) to rotate, the lead screw (353) drives the slider (354) to move along the guide rail (351), start the fourth motor (310), the fourth motor (310) drives the adjusting wheel (356) to rotate, the adjusting wheel (356) drives the paint spray gun (357) to adjust the angle, start the paint pump of the external paint supply equipment, the paint pump delivers the paint to the paint spray gun (357) through the delivery hose (358), and the paint spray gun (357) begins spraying; Step 7: Operation after spraying. After spraying is completed, close the spraying mechanism (3) and drive mechanism (4), start the first motor (22) to drive the sleeve (232) to rotate, so that the sprayed product moves to the outside with the bumper placement module (26), remove the sprayed product to complete the unloading, place the new bumper to be sprayed on the bumper placement module (26) after unloading to complete the loading, and then repeat steps 4 to 6 to continue the production spraying.

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