An electric vehicle frame anti-corrosion paint spraying device

Abstract

The application relates to the technical field of frame corrosion-proof paint spraying, in particular to an electric vehicle frame corrosion-proof paint spraying device, which comprises a frame pipe, an atomized paint spraying mechanism arranged at a paint-repairing part of the frame pipe, a paint mist suction mechanism arranged on the atomized paint spraying mechanism, a uniform speed pushing mechanism arranged on the atomized paint spraying mechanism and a pipe wall distance adjusting mechanism arranged on the atomized paint spraying mechanism; the atomized paint spraying mechanism comprises a paint spraying assembly arranged at the paint-repairing part of the frame pipe. The frame pipe with the repairing pipe is taken as a pressure-bearing main body, the atomized paint spraying mechanism and the paint mist suction mechanism which can freely move are arranged outside the frame pipe, when the atomized paint spraying mechanism sprays the frame pipe with the paint-repairing part at a minimum gap and a minimum range, the excessive paint mist can be quickly absorbed by the paint mist suction mechanism, and the problem of time and material consumption during the paint repairing of the pipe with the repairing part can be avoided.

Description

Technical Field

[0001] This invention relates to the field of anti-corrosion painting technology for vehicle frames, specifically to an anti-corrosion painting device for electric vehicle frames. Background Technology

[0002] Electric vehicle frame painting not only provides high corrosion resistance but also enhances the overall aesthetics of the vehicle and extends its service life. Since the electric vehicle frame consists of components such as the frame body, battery base, front fork, and handlebars, it requires the use of appropriate painting equipment for classified painting treatment.

[0003] Unlike the production process, when electric vehicles leave the factory and the paint layer on the frame peels off or is damaged due to driving or other factors, it is necessary to use paint touch-up equipment to repair the frame for corrosion protection. However, the repair process has certain defects due to the influence of existing painting equipment. Since the existing paint spray gun sprays paint mist over a large area, it is necessary to increase the time and amount of paint to achieve the required thickness of paint touch-up on the frame tubes. This method not only pollutes the work area environment, but also increases paint consumption.

[0004] In view of this, an anti-corrosion painting device for electric vehicle frames was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows: An anti-corrosion painting device for electric vehicle frames includes frame tubes, an atomizing painting mechanism disposed on the part of the frame tube to be painted, a paint mist extraction mechanism disposed on the atomizing painting mechanism, a uniform speed pushing mechanism disposed on the atomizing painting mechanism, and a tube wall adjustment mechanism disposed on the atomizing painting mechanism; the atomizing painting mechanism includes a painting assembly disposed on the part of the frame tube to be painted; the paint mist extraction mechanism includes an annular suction hood disposed on the painting assembly and located on the back of the frame tube, the annular suction hood being provided with two connectors and air pipes connected to the connectors; the tube wall adjustment mechanism is used to provide an effective painting distance between the painting assembly and the frame tube, and cooperates with the uniform speed pushing mechanism to provide a lateral propulsion platform for the atomizing painting mechanism and the paint mist extraction mechanism; the uniform speed pushing mechanism is used to provide an annular support platform for the atomizing painting mechanism and the paint mist extraction mechanism to switch painting positions.

[0007] In a preferred embodiment, the present invention can be further configured such that the pipe wall adjustment mechanism includes two beam plates, two clamps disposed on the two beam plates, and two lever arms disposed on the clamps. The clamp has a base inside, and a nut is provided on the threaded section of the base; The inner wall of the lever arm is provided with a clamp, and a reset assembly is connected to the clamp and the clamp seat; An auxiliary pressure component is provided at the outer end of the lever arm.

[0008] In a preferred embodiment, the present invention may be further configured such that: the painting assembly includes an annular paint spray cover, two outer baffles disposed inside the annular paint spray cover, and an inner baffle disposed inside the annular paint spray cover; An anti-overflow pad is provided in the groove in the middle of the inner baffle. A first pad is provided at the top and bottom of the anti-overflow pad. A second pad is provided on the outer baffle. A tension spring is connected to the first pad and the second pad. The inner wall of the annular spray nozzle is provided with atomizing spray holes; The inner wall of the annular suction hood is provided with air holes for absorbing the paint mist ejected through the atomizing nozzle.

[0009] In a preferred embodiment, the present invention may be further configured such that the atomizing spray painting mechanism further includes a pressurizing chamber disposed outside the annular spray painting hood, an insert tube installed inside the pressurizing chamber and inserted into the annular spray painting hood, a plug disposed at the outer end of the pressurizing chamber, and a paint delivery pipe connected to the plug.

[0010] In a preferred embodiment, the present invention can be further configured such that: a semi-circular groove is provided on the outer wall of the annular air intake hood, and a buckle is provided in the semi-circular groove; Both ends of the buckle are provided with plugs, and both ends of the annular spray paint cover are provided with sockets, with the plugs fitting into the sockets.

[0011] In a preferred embodiment, the present invention may be further configured such that: the auxiliary pressure assembly includes a shaft disposed at the outer end of the lever arm, a pad disposed outside the shaft, an end piece installed inside the pad, a vertical rod disposed inside the end piece, and two bearings disposed at the bottom end of the vertical rod; A low-friction pulley is installed outside the two bearings, and a spring is installed between the low-friction pulley and the pad. A nut is provided on the threaded section of the vertical rod.

[0012] In a preferred embodiment, the invention can be further configured such that: the top and bottom of the low-friction pulley are provided with arc-shaped bevels adapted to fit the wall of the frame tube, and the low-friction pulley is made of thickened rubber material.

[0013] In a preferred embodiment, the present invention can be further configured as follows: the uniform speed pushing mechanism includes a slider disposed on the end cap, a ring rail disposed outside the slider, a support frame disposed at the bottom of the ring rail, and a housing disposed on the support frame; The chassis is equipped with a micro motor, and the outer end of the transmission shaft inside the micro motor is equipped with a drive roller. The chassis is provided with a truss, one end of which is movably mounted with a drive wheel, and the other end of which is movably mounted with an auxiliary wheel; One end of the drive wheel is equipped with an auxiliary roller, and a drive belt is connected to both the drive roller and the auxiliary roller.

[0014] In a preferred embodiment, the present invention may be further configured such that: the auxiliary wheel and the drive belt are made of stainless steel hub and rubber tire, and the outer side of the drive wheel and the auxiliary wheel is provided with an annular groove adapted to fit the bottom of the frame tube.

[0015] In a preferred embodiment, the present invention may be further configured such that the reset assembly consists of two sleeves and an extended tension spring, and a plug is provided inside the sleeve, and the plug is installed inside the clamp.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. This invention uses a vehicle frame with a repair tube as the pressure-bearing body, and sets a freely movable atomizing paint spraying mechanism and a paint mist extraction mechanism on the outside of the vehicle frame tube. When the atomizing paint spraying mechanism repairs the painted part of the vehicle frame tube with the smallest gap and the smallest range, the excess paint mist can be quickly absorbed by the paint mist extraction mechanism. At this time, the repaired part of the tube can avoid the problem of time-consuming and material-consuming during the paint repair.

[0017] 2. This invention uses two sets of symmetrically distributed tube wall adjustment mechanisms on both sides of the paint spraying assembly. By using two sets of low-friction pulleys to fit the top and bottom of the frame tubes with minimal contact area, the paint-damaged parts of the frame tubes can be exposed on the inside of the paint spraying assembly. As soon as the paint mist is sprayed, it can adhere to the tubes immediately, thereby effectively reducing the problem of paint mist overflowing and failing to adhere effectively, and thus effectively improving the efficiency of tube repainting.

[0018] 3. By setting a ring rail outside the atomizing paint spraying mechanism, when paint peeling occurs on various parts of the frame tubes, the atomizing paint spraying mechanism supported by the ring rail can change the direction of the paint spraying without changing the spraying spacing. This ensures the consistency of the paint thickness on various parts of the frame tubes and avoids subsequent repair problems caused by different paint thickness and moving speed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the use of the present invention; Figure 2 This is a partial schematic diagram of the present invention; Figure 3 This is a schematic diagram of the uniform speed reeling mechanism of the present invention; Figure 4 This is a schematic diagram of the pipe wall adjustment mechanism of the present invention; Figure 5 For the present invention Figure 4 An explosion diagram; Figure 6 This is a schematic diagram of the auxiliary pressure assembly of the present invention; Figure 7 This is an exploded view of the atomizing paint spraying mechanism of the present invention; Figure 8 This is a schematic diagram of the paint mist extraction mechanism of the present invention; Figure 9 This is a cross-sectional schematic diagram of the annular spray paint cover of the present invention; Figure 10 This is a schematic diagram of the painting assembly of the present invention.

[0020] Figure label: 100. Chassis fittings; 200. Atomizing spray painting mechanism; 210. Spray painting assembly; 211. Annular spray paint cover; 212. Outer baffle; 213. Inner baffle; 214. Anti-overflow inner pad; 215. First pad; 216. Second pad; 217. Tension spring; 220. Pressure chamber; 230. Insert pipe; 240. Plug; 250. Paint delivery pipe; 300. Paint mist extraction mechanism; 310. Annular suction hood; 320. Connector; 330. Air hose; 340. Buckle; 400. Pipe wall adjustment mechanism; 410. Beam plate; 420. Clamp; 430. Base; 440. Nut; 450. Lever arm; 460. Reset assembly; 470. Auxiliary pressure assembly; 471. Pad; 472. Shaft; 473. End; 474. Vertical rod; 475. Bearing; 476. Low-friction pulley; 477. Spring; 478. Nut; 480. Clamp; 500. Uniform speed reeling mechanism; 510. Slider; 520. Ring rail; 530. Support frame; 540. Chassis; 550. Micro motor; 560. Truss; 570. Drive wheel; 580. Assist wheel; 590. Drive belt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of an electric vehicle frame anti-corrosion painting device provided by the present invention.

[0024] Example 1: Combination Figures 1-10 As shown, the present invention provides an anti-corrosion painting device for electric vehicle frames, including a frame tube 100, an atomizing painting mechanism 200 disposed on the part of the frame tube 100 to be painted, a paint mist extraction mechanism 300 disposed on the atomizing painting mechanism 200, a uniform speed pushing mechanism 500 disposed on the atomizing painting mechanism 200, and a tube wall adjusting mechanism 400 disposed on the atomizing painting mechanism 200. The atomizing painting mechanism 200 is used to paint the frame tube 100. The high-efficiency painting process includes a paint mist extraction mechanism 300 for quickly extracting excess paint mist, a pipe wall spacing mechanism 400 for providing an effective painting distance between the painting assembly 210 and the frame tube 100, and a uniform speed pushing mechanism 500 for providing a lateral propulsion platform for the atomizing painting mechanism 200 and the paint mist extraction mechanism 300. The uniform speed pushing mechanism 500 also provides a ring-shaped support platform for the atomizing painting mechanism 200 and the paint mist extraction mechanism 300 to switch positions for painting.

[0025] The atomizing paint spraying mechanism 200 includes a paint spraying component 210 disposed on the part of the frame tube 100 to be touched up with paint; The paint mist extraction mechanism 300 includes an annular suction hood 310 disposed on the paint spraying assembly 210 and located on the back of the frame tube 100. The annular suction hood 310 is provided with two connectors 320 and an air pipe 330 connected to the connectors 320. The outer wall of the annular suction hood 310 is provided with a semi-circular groove, and a buckle 340 is provided in the semi-circular groove. The painting assembly 210 includes an annular paint spray hood 211, two outer baffles 212 disposed inside the annular paint spray hood 211, and an inner baffle 213 disposed inside the annular paint spray hood 211. An anti-overflow pad 214 is provided in the slot in the middle of the inner baffle 213. A first pad 215 is provided at the top and bottom of the anti-overflow pad 214. A second pad 216 is provided on the outer baffle 212. A tension spring 217 is connected to the first pad 215 and the second pad 216. The inner wall of the annular spray nozzle 211 is provided with atomizing spray holes; The inner wall of the annular suction hood 310 is provided with air holes for absorbing the paint mist ejected through the atomizing nozzle; A pressurizing chamber 220 is located outside the annular spray nozzle 211; an insert tube 230 is installed inside the pressurizing chamber 220 and inserted into the annular spray nozzle 211; a plug 240 is located at the outer end of the pressurizing chamber 220; and a paint delivery tube 250 is connected to the plug 240. Both ends of the buckle 340 are equipped with plugs, and both ends of the annular spray paint cover 211 are equipped with sockets, with the plugs fitting into the sockets. Once the paint chipped area of ​​the frame tube 100 is exposed, the inner end of the paint spraying assembly 210 can be oriented towards the paint chipped area of ​​the frame tube 100. Then, the annular suction hood 310 and the annular paint spraying hood 211 can be fixed using the clip 340. Next, the two nuts 440 can be adjusted using a wrench. As the two nuts 440 continuously apply pressure to the two sets of lever arms 450, the four sets of auxiliary pressure assemblies 470 set on the four lever arms 450 can fit and conform to the top and bottom of the frame tube 100. The four low-friction pulleys 476 can fit the top and bottom of the frame tube 100 with the minimum contact area. After the paint supply tube 250 inputs paint into the plug 240 and the pressurization chamber 220, the paint is transferred through the insertion tube 230 and finally enters the annular spray nozzle 211. At this time, the continuously pressurized paint will push the anti-overflow pad 214 horizontally into the gap between the two outer baffles 212. Finally, the paint will be released outward from the atomizing nozzle on the inner wall of the annular spray nozzle 211 along the gap. Finally, the atomized paint can be directly sprayed onto the paint chipped area of ​​the frame tube 100. The paint mist that overflows from the direct spraying can be absorbed by the annular suction hood 310 along the tube wall of the frame tube 100. Finally, the excess paint mist can be discharged outward from the two air tubes 330. When there are multiple defects on the frame tube 100 and touch-up painting is required, the atomizing paint spraying mechanism 200 can be adjusted to rotate around the ring rail 520. At this time, the atomizing paint spraying mechanism 200 and the paint mist extraction mechanism 300 can perform touch-up painting on each point on the frame tube 100. The uniform speed pushing mechanism 500 will also push the atomizing paint spraying mechanism 200 and the paint mist extraction mechanism 300 to move at a uniform speed along the tube wall of the frame tube 100. Ultimately, this ensures that the defects on each point on the frame tube 100 can be coated with a uniform paint thickness.

[0026] Example 2: Combination Figure 4 and Figure 5 As shown, based on Embodiment 1, the pipe wall adjustment mechanism 400 includes two beam plates 410, two clamps 420 disposed on the two beam plates 410, and two lever arms 450 disposed on the clamps 420.

[0027] Preferably, the beam plate 410 has two rectangular insertion holes inside, and four symmetrically distributed clamping plates are provided at the inner end of the beam plate 410, which are used to provide limiting constraints on the inner end of the base 430.

[0028] The clamp 420 has a base 430 inside, and a nut 440 is provided on the threaded section of the base 430; The inner wall of the lever arm 450 is provided with a chuck 480, and a reset assembly 460 is connected to the chuck 480 and the clamp seat 420. The reset assembly 460 consists of two sleeves and an extended tension spring, and a rod is provided inside the sleeves, which is installed inside the chuck 480. An auxiliary pressure assembly 470 is provided at the outer end of the lever arm 450.

[0029] Preferably, one sleeve is movably installed on the end of the inner end of the base 430 via a plug rod, while the other sleeve is movably installed in the clamp 480 via another plug rod. In the initial state, the reset component 460 will apply an effective traction force to the lever arm 450. At this time, the two lever arms 450 can carry the two sets of auxiliary pressure components 470 to adapt and fit the top and bottom of the frame tube 100. At this time, the two sets of auxiliary pressure components 470 can provide sufficient and effective bearing capacity for the lateral movement of the atomizing spraying mechanism 200 and the paint mist extraction mechanism 300.

[0030] Example 3: Combination Figure 1 and Figure 6 As shown, based on Embodiment 1, the auxiliary pressure assembly 470 includes a shaft 472 disposed at the outer end of the lever arm 450, a pad 471 disposed outside the shaft 472, an end 473 installed inside the pad 471, a vertical rod 474 disposed inside the end 473, and two bearings 475 disposed at the bottom end of the vertical rod 474.

[0031] Preferably, the pad 471 is made of stainless steel and has cylindrical holes inside; The bottom of the vertical rod 474 is provided with a circular pad, which is located directly above the low-friction pulley 476. The bottom end of the spring 477 is adapted to bear pressure on the circular pad, and the top end of the spring 477 is adapted to bear pressure on the inner wall of the cylindrical hole.

[0032] A low-friction pulley 476 is disposed outside the two bearings 475, and a spring 477 is disposed between the low-friction pulley 476 and the pad 471; A nut 478 is provided on the threaded section of the vertical rod 474; The low-friction pulley 476 has arc-shaped bevels at the top and bottom to fit the wall of the frame tube 100, and the low-friction pulley 476 is made of thickened rubber material.

[0033] By adjusting the rotation of the nut 478 on the threaded section of the vertical rod 474, the vertical rod 474 will be pulled and drive the low-friction pulley 476 to rise and fall along the cylindrical hole. At this time, the low-friction pulley 476 can effectively fit the top and bottom of the frame tube 100. By using the gradual arc surface of the two low-friction pulleys 476 to fit the top and bottom of the frame tube 100, the two adjacent sets of auxiliary pressure components 470 can make fine adjustments to the spacing between the atomizing paint spraying mechanism 200 and the paint mist extraction mechanism 300. Ultimately, the atomizing paint spraying mechanism 200 can control the spacing of the paint spraying on the frame tube 100.

[0034] Example 4: Combination Figures 1-5 As shown, in the above embodiment, the uniform speed pushing mechanism 500 includes a slider 510 disposed on the plug 240, a ring rail 520 disposed outside the slider 510, a support 530 disposed at the bottom of the ring rail 520, and a housing 540 disposed on the support 530.

[0035] Preferably, a fixing nut is provided on the threaded section on one side of the slider 510. At this time, the atomizing paint spraying mechanism 200 and the paint mist suction mechanism 300, which are fixed by the slider 510, can circle around the ring rail 520. During this time, the horizontally placed frame tube 100 can be coated with paint of uniform thickness. At the same time, the running micro motor 550 drives the drive belt 590 and the drive wheel 570. With the matching support of the auxiliary wheel 580, the atomizing paint spraying mechanism 200 and the paint mist suction mechanism 300 can be coated with paint at a uniform speed along the defective parts of the frame tube 100 after the circle.

[0036] The chassis 540 is equipped with a micro motor 550, and the outer end of the transmission shaft of the micro motor 550 is equipped with a drive roller. A truss 560 is provided on the chassis 540. A drive wheel 570 is movably mounted on one end of the truss 560, and an auxiliary wheel 580 is movably mounted on the other end of the truss 560. One end of the drive wheel 570 is equipped with an auxiliary roller, and the drive roller and the auxiliary roller are connected by a drive belt 590. The auxiliary wheel 580 and the drive belt 590 are made of stainless steel hub and rubber tire, and the outer side of the drive wheel 570 and the auxiliary wheel 580 are provided with annular grooves that fit and conform to the bottom of the frame tube 100.

[0037] When the micro motor 550 starts, it drives the drive belt 590. At this time, the other end of the drive belt 590 will drive the drive wheel 570. The four sets of auxiliary pressure components 470, after being adapted to the pressurized atomizing paint spraying mechanism 200 and the paint mist suction mechanism 300, can move at a constant speed along the frame tube 100 under the push of the drive wheel 570. At this time, the paint mist sprayed by the paint spraying component 210 can effectively touch up the defective parts of the frame tube 100, and the defective parts of the frame tube 100 can be painted with a uniform thickness.

[0038] The working principle and usage process of this invention: The electric vehicle frame consists of a frame body, a battery base, a front fork, and a handlebar. The frame is welded from hollow tubes and flat plates. Unlike the production workshop, if the paint layer of the frame tube structure of an electric vehicle that has been put into use is damaged due to an accident, special painting equipment is needed to repair the electric vehicle frame. However, the paint mist sprayed by the existing paint gun spreads over a wide area, which will pollute the working area. In order to ensure that the paint thickness of the repaired tube is the same as the original paint, it is necessary to increase the spraying time and the amount of paint sprayed. At this time, the consumption of paint mist sprayed over a wide area will increase, greatly increasing the amount of paint wasted. This device adapts to the frame tube structure. When the frame tube is worn and requires touch-up painting, the part of the frame tube to be repaired is exposed beforehand. Then, the inner wall of the paint spraying assembly 210 faces the part of the tube to be painted, and the annular suction hood 310 is placed along the other side of the tube. The annular suction hood 310 is then fixed to the annular paint spray hood 211 using clips 340. At this point, the annular suction hood 310 and the annular paint spray hood 211 form a circular structure, and paint is then applied. The paint is fed into the tube 250. After being pressurized by the plug 240 and the pressurization chamber 220, the paint can enter the interior of the annular paint spray cover 211 through the insertion tube 230. When the paint pressurizes the anti-overflow pad 214, the anti-overflow pad 214, which moves inward under pressure, can transfer the paint in a metered manner to the annular cavity formed by the outer baffle 212 and the annular paint spray cover 211. Finally, the continuously pressurized paint can be sprayed from the atomizing nozzles on the inner wall of the annular paint spray cover 211 onto the parts of the frame tube 100 to be painted. The moment the paint is sprayed onto the surface of the frame tube 100, the air pipe 330 exhausts air outward, and the air holes on the inner wall of the annular air intake hood 310 can provide an arc-shaped airflow field to the back of the frame tube 100. At this moment, the paint mist can be quickly discharged outward along the airflow field. This process can effectively avoid the phenomenon of paint mist spreading over a large area. Meanwhile, the two sets of tube wall adjustment mechanisms 400 set on both sides of the paint spraying assembly 210 can provide gap adjustment for the parts of the frame tube 100 other than the parts to be painted. By rotating the control nut 440, the two force arms 450 and the two sets of auxiliary pressure components 470 applied by the nut 440 can be used to fit and press the top and bottom of the frame tube 100. At this time, the two sets of low friction pulleys 476 symmetrically distributed can bear the pressure on the top and bottom of the frame tube 100 with the smallest area. After the two sets of low friction pulleys 476 are pressed and adjusted, the paint spraying assembly 210 as a whole can maintain an effective gap for painting with the frame tube 100. When the micro motor 550 starts, its internal transmission shaft drives the drive belt 590 and drive wheel 570. Together with the auxiliary wheel 580 and the drive belt 590, they provide double pressure on the bottom of the frame tube 100. At this time, the atomizing paint spraying mechanism 200 and the paint mist suction mechanism 300, which are driven by the drive belt 590, can move steadily and at a constant speed along the frame tube 100. At this time, the spray holes on the inner wall of the annular paint spraying cover 211 can perform touch-up paint work on the defective parts of the frame tube 100.

[0039] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An anti-corrosion painting device for electric vehicle frames, comprising frame tubes (100), characterized in that, It also includes an atomizing paint spraying mechanism (200) installed on the part of the frame tube (100) to be painted, a paint mist suction mechanism (300) installed on the atomizing paint spraying mechanism (200), a uniform speed pushing mechanism (500) installed on the atomizing paint spraying mechanism (200), and a tube wall adjustment mechanism (400) installed on the atomizing paint spraying mechanism (200). The atomizing paint spraying mechanism (200) includes a paint spraying component (210) installed on the part of the frame tube (100) to be touched up with paint. The paint mist extraction mechanism (300) includes an annular suction hood (310) disposed on the paint spraying assembly (210) and located on the back of the frame tube (100). The annular suction hood (310) is provided with two connectors (320) and an air pipe (330) connected to the connectors (320). The tube wall adjustment mechanism (400) is used to provide an effective painting distance for the painting assembly (210) and the frame tube (100), and works in conjunction with the uniform speed pushing mechanism (500) to provide a lateral propulsion platform for the atomizing painting mechanism (200) and the paint mist suction mechanism (300). The uniform speed pushing mechanism (500) is used to provide a ring-shaped support platform for the atomizing paint spraying mechanism (200) and the paint mist extraction mechanism (300) to switch the paint spraying position.

2. The anti-corrosion painting device for an electric vehicle frame according to claim 1, characterized in that, The pipe wall adjustment mechanism (400) includes two beam plates (410), two clamps (420) disposed on the two beam plates (410), and two lever arms (450) disposed on the clamps (420). The clamp (420) has a base (430) inside, and a nut (440) is provided on the threaded section of the base (430). The inner wall of the lever arm (450) is provided with a chuck (480), and a reset assembly (460) is connected to the chuck (480) and the clamp seat (420). An auxiliary pressure assembly (470) is provided at the outer end of the lever arm (450).

3. The anti-corrosion painting device for an electric vehicle frame according to claim 1, characterized in that, The painting assembly (210) includes an annular paint spray cover (211), two outer baffles (212) disposed inside the annular paint spray cover (211), and an inner baffle (213) disposed inside the annular paint spray cover (211). An anti-overflow pad (214) is provided in the slot in the middle of the inner baffle (213). A first pad (215) is provided at the top and bottom of the anti-overflow pad (214). A second pad (216) is provided on the outer baffle (212). A tension spring (217) is connected to the first pad (215) and the second pad (216). The inner wall of the annular spray nozzle (211) is provided with atomizing spray holes; The inner wall of the annular suction hood (310) is provided with air holes for absorbing the paint mist ejected through the atomizing nozzle.

4. The anti-corrosion painting device for an electric vehicle frame according to claim 1, characterized in that, The atomizing paint spraying mechanism (200) also includes a pressurizing chamber (220) disposed outside the annular paint spraying hood (211), an insert tube (230) installed inside the pressurizing chamber (220) and inserted into the annular paint spraying hood (211), a plug (240) disposed at the outer end of the pressurizing chamber (220), and a paint delivery tube (250) connected to the plug (240).

5. The anti-corrosion painting device for an electric vehicle frame according to claim 1, characterized in that, The outer wall of the annular air intake hood (310) is provided with a semi-circular groove, and a buckle (340) is provided in the semi-circular groove. Both ends of the buckle (340) are provided with plugs, and both ends of the annular spray paint cover (211) are provided with sockets, and the plugs are fitted into the sockets.

6. The anti-corrosion painting device for an electric vehicle frame according to claim 2, characterized in that, The auxiliary pressure assembly (470) includes a shaft (472) disposed at the outer end of the lever arm (450), a pad (471) disposed outside the shaft (472), an end (473) installed inside the pad (471), a vertical rod (474) disposed inside the end (473), and two bearings (475) disposed at the bottom end of the vertical rod (474). A low-friction pulley (476) is provided outside the two bearings (475), and a spring (477) is provided between the low-friction pulley (476) and the pad (471). A nut (478) is provided on the threaded section of the vertical rod (474).

7. The anti-corrosion painting device for an electric vehicle frame according to claim 6, characterized in that, The low-friction pulley (476) has arc-shaped bevels at the top and bottom that fit into the wall of the frame tube (100), and the low-friction pulley (476) is made of thickened rubber material.

8. The anti-corrosion painting device for an electric vehicle frame according to claim 1, characterized in that, The uniform speed pushing mechanism (500) includes a slider (510) disposed on the plug (240), a ring rail (520) disposed outside the slider (510), a support (530) disposed at the bottom of the ring rail (520), and a housing (540) disposed on the support (530). The chassis (540) is equipped with a micro motor (550), and the outer end of the transmission shaft inside the micro motor (550) is equipped with a drive roller; A truss (560) is provided on the chassis (540), a drive wheel (570) is movably mounted on one end of the truss (560), and an auxiliary wheel (580) is movably mounted on the other end of the truss (560). One end of the drive wheel (570) is equipped with an auxiliary roller, and a drive belt (590) is connected to the drive roller and the auxiliary roller.

9. The anti-corrosion painting device for an electric vehicle frame according to claim 8, characterized in that, The auxiliary wheel (580) and drive belt (590) are made of stainless steel hub and rubber tire, and the outer side of the drive wheel (570) and auxiliary wheel (580) is provided with annular grooves that fit and conform to the bottom of the frame tube (100).

10. The anti-corrosion painting device for an electric vehicle frame according to claim 2, characterized in that, The reset assembly (460) consists of two sleeves and an extended tension spring, and a plug is provided inside the sleeve, which is installed in the clamp (480).

Images