Automobile parts spraying equipment with automatic rotating support

Abstract

The utility model relates to the technical field of automobile parts surface treatment equipment, specifically discloses an automobile parts spraying equipment with automatic rotating support. The equipment includes a transport table, a paint spraying room, a connecting frame and a rotating support; the connecting frame is arranged between the transport table and the paint spraying room, and a first motor is arranged inside to drive the rotating support; a linkage type inner support fixing mechanism is integrated on the rotating support, the connecting ring is slid to drive the connecting rod to expand the support plate radially, and the L-shaped limiting groove is used to realize the internal support and mechanical self-locking of the parts; an air suction fan and an air pipe are arranged in the paint spraying room, the air pipe is connected to a filter water pool; a rack is arranged on the side of the filter water pool, an outside motor drive gear is engaged with the rack, and the screen cylinder is rotated and reciprocated along the water pool at the same time. The utility model not only realizes the stable inner support fixing of different specifications of parts, avoids the dead angle of spraying, but also realizes the automatic continuous cleaning of the water surface paint residue, improves the production efficiency and environmental protection performance.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts surface treatment equipment, and in particular to an automotive parts spraying equipment with an automatic rotating bracket. Background Technology

[0002] In the manufacturing process of automotive parts, surface coating is typically required to improve their corrosion resistance, aesthetics, and extend their service life. In existing coating processes, the fixation and support of parts are crucial factors affecting coating quality. Currently, most coating equipment uses external clamping fixtures or universal hangers to secure the parts.

[0003] However, with the development of the automotive industry, the variety of parts has increased significantly, and their specifications and dimensions vary greatly. This is especially true for parts with central hole structures, such as wheel hubs and sleeves, where traditional external clamping methods have obvious limitations. On the one hand, existing fixtures typically only accommodate a single hole diameter. When changing parts from different batches, the corresponding fixture often needs to be replaced, leading to long production preparation times and poor equipment versatility. On the other hand, when external clamps hold parts, the clamps themselves can obscure part of the part's outer surface, resulting in "shadows" or "dead corners" after painting, preventing full coverage in one go and severely impacting product quality. Furthermore, painting operations generate a large amount of paint mist exhaust gas. Although existing equipment is usually equipped with a water bath filtration system to adsorb paint residue from the exhaust gas, a large amount of sticky paint residue floats on the surface of the filtration pool as the operation progresses. Current technologies rely heavily on manual periodic dredging or fixed filter screens for cleaning this paint residue. The former is labor-intensive and workers are prone to inhaling harmful gases, while the latter easily clogs the filter screen, making automated and continuous cleaning impossible, thus affecting the long-term stable operation and environmental performance of the equipment.

[0004] Therefore, this utility model proposes an automotive parts spraying device with an automatic rotating bracket to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the automotive parts painting equipment, such as poor versatility of fixing devices, external clamping that easily causes painting dead corners, reliance on manual cleaning of paint residue on the surface of the exhaust gas treatment pool, low degree of automation and harm to the health of operators, this utility model aims to provide an automotive parts painting equipment with an automatic rotating bracket that has an improved structure and can effectively solve the above problems.

[0006] This utility model provides an automotive parts painting device with an automatic rotating bracket, comprising: a transport platform, a paint booth, a connecting frame, and a rotating bracket; the transport platform is disposed on the side of the paint booth, and the connecting frame is fixedly installed between the transport platform and the paint booth; a first motor is fixedly installed inside the connecting frame, and the output end of the first motor is fixedly connected to the rotating bracket; an air suction fan is fixedly installed inside the paint booth, the output end of the air suction fan is connected to an air pipe, and the end of the air pipe away from the air suction fan is connected to a filter water tank; and a linkage internal support fixing mechanism and a movable screening and cleaning mechanism.

[0007] The linkage internal support fixing mechanism is integrated on the rotating bracket and has a linkage combination structure that can convert vertical displacement into radial expansion motion. The mobile screening and cleaning mechanism is set on the filter water tank and has a gear and rack meshing structure that can simultaneously realize self-rotation screening and linear reciprocating movement.

[0008] Furthermore, the outer wall of the rotating bracket and the linkage internal support fixing mechanism are combined through sliding fit and rotational connection. The connecting ring on the rotating bracket drives the connecting rod and the support plate to move, thereby achieving internal support for the components. The filter pool and the mobile screening and cleaning mechanism are connected by gear and rack meshing and the sliding guide of the motor, enabling the mobile screening and cleaning mechanism to automatically cruise and clean along the edge of the filter pool.

[0009] Preferably, the outer wall of the rotating bracket is provided with a groove, and the inner wall of the connecting ring in the linkage internal support fixing mechanism is fixedly provided with a slider that matches the groove. The groove includes a vertical guide section and a horizontal limiting section that communicates with the top of the vertical guide section. The slider achieves mechanical self-locking of the linkage internal support fixing mechanism in the open state by sliding and engaging in the groove, preventing the parts from loosening during rotation.

[0010] Preferably, the linkage internal support fixing mechanism includes connecting columns, and multiple connecting columns are provided. The multiple connecting columns are evenly distributed along the circumferential direction of the axis of the rotating bracket between the first connecting ring and the second connecting ring, so as to ensure the stability of the second connecting ring during the up and down movement and avoid jamming caused by uneven force.

[0011] Preferably, the linkage internal support fixing mechanism includes support plates, and multiple support plates are provided. The multiple support plates are evenly spaced along the circumferential direction of the rotating bracket, and the support plates form a triangular support structure with the rotating bracket through connecting rod one and connecting rod two, which is used to achieve multi-point uniform force support for the inner hole of the component.

[0012] Preferably, the support plate has an arc-shaped structure, and the side surface of the support plate away from the central axis of the rotating bracket is provided with an anti-slip rubber layer, which is used to increase the contact friction with the inner wall of the component while using the elasticity of the rubber to avoid hard contact damage to the surface of the component.

[0013] Preferably, the outer wall of the filtration pool is horizontally provided with a guide rail along its length, and the bottom of the second motor in the movable screening and cleaning mechanism is provided with a sliding seat that cooperates with the guide rail. The second motor is slidably connected to the guide rail through the sliding seat, which is used to limit the movement trajectory of the second motor and ensure the stability of the gear and rack meshing.

[0014] Preferably, the mobile screening and cleaning mechanism includes a screen cylinder, which is a cylindrical mesh structure. The diameter of the screen cylinder is larger than the diameter of the gear. The rotation axis of the screen cylinder coincides with the rotation axis of the gear, and the lower half of the screen cylinder is submerged below the surface of the filtration pool. This mechanism is used to continuously pick up and separate the paint residue floating on the water surface during rotation.

[0015] Preferably, the air pipe has an L-shaped bend structure, with one end penetrating through the side wall of the spray booth and connected to the suction fan, and the other end extending above the filter water tank and opening towards the liquid surface of the filter water tank, so as to guide the exhaust gas to vertically impact the water surface, increase the gas-liquid contact area, and enhance the sedimentation and filtration effect of paint mist.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by setting a triangular linkage expansion mechanism consisting of a connecting ring, a connecting rod and a support plate on the rotating bracket, and cooperating with the mechanical self-locking structure of the L-shaped limiting groove and the slider, the problems of poor versatility, difficulty in adapting to parts with different inner diameters and the tendency of external clamping methods to block the spraying surface and cause spraying dead angles in the existing technology are solved. It achieves the technical effect of being able to flexibly accommodate automotive parts with various inner diameters, realize stable internal support to fully expose the external spraying surface, and ensure a stable locking state to prevent the workpiece from loosening and shifting during the rotational spraying process.

[0017] 2. In this utility model, by setting a gear and rack transmission assembly on the side of the filtration pool and combining it with the screen cylinder structure, the motor drives the gear to drive the screen cylinder to rotate while moving back and forth along the length of the filtration pool. This solves the problems of difficult cleaning of paint residue accumulation on the surface of the paint spraying exhaust gas treatment pool, low efficiency of manual retrieval, and easy exposure to harmful gases that endanger workers' health in the prior art. It achieves the technical effects of automatically, continuously and fully covering the retrieval of floating paint residue on the water surface, significantly reducing manual maintenance costs and labor intensity, ensuring the continuous stability of the filtration system, and effectively protecting workers' health. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an automotive parts spraying device with an automatic rotating bracket proposed in this utility model. Figure 2 This is a front view of an automotive parts painting device with an automatic rotating bracket proposed in this utility model. Figure 3 This is a schematic diagram of the structure of the rotating bracket of an automotive parts painting equipment with an automatic rotating bracket proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the filter water tank of an automotive parts spraying equipment with an automatic rotating bracket proposed in this utility model. Legend: 1. Transport platform; 2. Spray booth; 3. Connecting frame; 4. Rotating support; 5. First motor; 601. Connecting ring one; 602. Slider; 603. Connecting column; 604. Connecting ring two; 605. Connecting rod one; 606. Support plate; 607. Connecting rod two; 608. Fixed circular plate; 609. Groove; 701. Air pipe; 702. Filter water tank; 703. Screen cylinder; 704. Gear; 705. Second motor; 706. Rack; 707. Suction fan. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example: Please refer to Figures 1 to 4 This utility model provides an automotive parts painting equipment with an automatic rotating bracket, which aims to solve the problems in the prior art where the automotive parts painting fixing device is difficult to adapt to different inner diameter specifications, resulting in unstable fixing, and the difficulty in automatically cleaning paint residue on the surface of the paint exhaust gas treatment pool.

[0021] like Figures 1 to 4As shown, the automotive parts painting equipment with an automatic rotating bracket includes a transport platform 1 and a paint booth 2 located on one side of the transport platform 1 to provide a closed painting work space. A connecting frame 3 for connecting and supporting is fixedly installed between the transport platform 1 and the paint booth 2. A first motor 5 for providing rotational driving force is fixedly installed inside the connecting frame 3. The output end of the first motor 5 extends vertically upward and is fixedly connected to the rotating bracket 4 for carrying the workpiece. The driving action of the first motor 5 drives the rotating bracket 4 and the automotive parts placed on it to rotate circumferentially, thereby achieving uniform coverage in conjunction with the painting operation. An air intake fan 707 for generating negative pressure airflow to adsorb paint mist is fixedly installed inside the paint booth 2. The output end of the air intake fan 707 is connected to an air pipe 701 for guiding exhaust gas. The end of the air pipe 701 away from the air intake fan 707 is connected to a filter water tank 702 for water bath filtration of exhaust gas. The air pipe 701 is L-shaped. The filter tank 702 features a bent structure with its end facing the liquid surface opening to ensure sufficient contact between exhaust gas and the water surface. A rack 706 is fixedly installed along the length of the side wall of the filter tank 702 to provide a travel path. A second motor 705 is slidably installed on the outer side wall of the filter tank 702 to provide lateral movement power. A gear 704 is fixedly connected to the output end of the second motor 705, and the gear 704 is meshed with the rack 706. A screen cylinder 703 for scooping floating debris is fixedly connected to the side of the gear 704. The screen cylinder 703 is rotatably fitted inside the filter tank 702 and located at the liquid surface. The second motor 705 drives the gear 704 to rotate. The meshing transmission between the gear 704 and the rack 706 causes the gear 704 to drive the screen cylinder 703 to rotate while reciprocating along the length of the filter tank 702, thus achieving automatic filtration and cleaning of paint residue on the surface of the filter tank 702.

[0022] Please refer to the following carefully. Figure 3 To address the technical problems of poor applicability of existing fixing fixtures and the tendency to generate spraying dead angles, a linkage-type internal support fixing mechanism is integrated on the rotating bracket 4. This mechanism forms a specific sliding fit and rotational connection with the body of the rotating bracket 4.

[0023] Specifically, the rotating bracket 4, as the main load-bearing component, has a fixed circular plate 608 fixedly connected to its top. The fixed circular plate 608 provides an upper fixed support point for the entire linkage mechanism. A connecting ring 601 is slidably sleeved on the outer cylindrical surface of the rotating bracket 4, and a connecting ring 604 is slidably sleeved on the upper part of the connecting ring 601. The connecting ring 601 and the connecting ring 604 are fixedly connected by multiple connecting posts 603 evenly distributed along the circumference. The connecting posts 603 ensure that the connecting ring 601 and the connecting ring 604 can maintain synchronous and stable vertical lifting and lowering movement on the rotating bracket 4.

[0024] Based on this, a connecting rod 605 is rotatably connected to the outer circumference of the connecting ring 604. A support plate 606 is rotatably connected to the end of the connecting rod 605 away from the connecting ring 604. The support plate 606 has an arc-shaped plate structure and multiple support plates are evenly distributed along the circumference of the rotating bracket 4. A rubber anti-slip pad is attached to the side of the support plate 606 away from the central axis of the rotating bracket 4 for direct contact and pressing against the inner wall of the component. At the same time, a connecting rod 607 is rotatably connected to the bottom edge of the fixed circular plate 608. The end of the connecting rod 607 away from the fixed circular plate 608 is rotatably connected to the end of the support plate 606 away from the connecting rod 605. This creates a stable triangular linkage support structure. When the connecting ring 604 moves upward with the connecting ring 601, the connecting rod 605 is pushed outward by the force, forcing the support plate 606 to expand outward to accommodate components with different inner diameters.

[0025] To ensure locking stability in the extended state, the outer wall of the rotating bracket 4 is provided with a groove 609. The groove 609 is specifically designed as an L-shaped limiting groove structure, which includes a vertical guide section and a horizontal limiting section connected to the top of the vertical guide section. Correspondingly, a slider 602 is fixedly connected to the inner ring wall of the connecting ring 601. The slider 602 slides inside the groove 609. In the assembled and used state, after the operator pushes the connecting ring 601 up to the support plate 606 to tension the parts, the connecting ring 601 is rotated horizontally to make the slider 602 engage with the horizontal limiting section of the groove 609, thereby achieving mechanical self-locking and effectively preventing the parts from loosening or shifting due to equipment vibration or centrifugal force during the spraying process.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: To improve the force balance of the lifting transmission component and avoid jamming caused by single-point force, the number of connecting columns 603 is preferably set to two or more. Multiple connecting columns 603 are evenly distributed at intervals along the circumference of the axis of the rotating bracket 4 between connecting ring 1 601 and connecting ring 2 604. At the same time, the number of support plates 606 is also set to multiple. Multiple support plates 606 are evenly distributed along the circumference of the rotating bracket 4. Together with the corresponding number of connecting rod 1 605 and connecting rod 2 607, a multi-point uniform support system is formed to ensure that the components are subjected to uniform force.

[0027] To enhance the stability of the support plate 606 when in contact with the inner wall of the component and to prevent rigid contact damage to the component, the support plate 606 has an arc-shaped plate structure. A rubber anti-slip pad is fixedly bonded to the surface of the support plate 606 away from the central axis of the rotating bracket 4. By utilizing the elastic deformation capacity and high coefficient of friction of the rubber material, it is ensured that there is no relative sliding when the component is tightened, and the inner wall substrate of the component can be effectively protected.

[0028] In order to achieve smooth and directional reciprocating movement of the second motor 705, a guide rail is horizontally fixed on the outer wall of the filter pool 702 along its length. The bottom of the second motor 705 is equipped with a sliding seat that matches the cross-sectional shape of the guide rail. Through the sliding engagement between the sliding seat and the guide rail, the displacement freedom of the second motor 705 in the non-moving direction is restricted, ensuring that the gear 704 and the rack 706 always maintain a good meshing state.

[0029] To ensure the effectiveness of exhaust gas treatment and paint residue removal, the air pipe 701 adopts an L-shaped bend design, with its outlet end pointing vertically downwards and extending above the liquid surface of the filter pool 702. This allows the exhaust gas flow to directly impact the water surface for preliminary gas-liquid contact filtration. Meanwhile, the screen cylinder 703 is designed as a hollow cylindrical mesh cage structure with a diameter larger than that of the gear 704. The installation position ensures that the lower half of the screen cylinder 703 is stably submerged below the liquid surface of the filter pool 702, so that the screen cylinder 703 can continuously and extensively collect and separate the paint residue floating on the water surface as it rotates and moves with the gear 704.

[0030] Working principle: When painting is required, the operator first places the automotive parts to be painted on the outside of the rotating bracket 4, and then pushes the connecting ring 601 upward. The connecting ring 601 drives the connecting post 603 and the connecting ring 604 to slide vertically upward along the rotating bracket 4. During this process, the upward displacement of the connecting ring 604 pushes the support plate 606 outward through the connecting rod 605, forcing the support plate 606 to rotate around the connecting rod 607 and expand outward until the rubber anti-slip pad on the surface of the support plate 606 is tightly pressed against the inner wall of the parts.

[0031] After the components are tightened, the horizontally rotating connecting ring 601 drives the slider 602 to laterally engage with the horizontal limiting section of the groove 609, thus achieving self-locking and securing the components firmly through internal support. This structure, combining linkage expansion and mechanical self-locking, effectively solves the problem of fixing difficulties caused by different inner diameters of components in existing technologies. It also avoids external clamps obstructing the spraying surface, ensuring the integrity of the spraying process.

[0032] After fixing, the rotating bracket 4 carrying the parts is transported to the paint booth 2 via the transport platform 1. The first motor 5 in the connecting frame 3 is started. The first motor 5 drives the rotating bracket 4 to rotate the parts at a uniform speed, and works with the spray gun to complete the all-round uniform spraying.

[0033] During the spraying process, the exhaust fan 707 operates continuously, drawing the exhaust gas containing paint mist from the spray booth 2 into the water filtration tank 702 via the air pipe 701 for water bath filtration. Paint residue is trapped and floats on the water surface. When it is necessary to clean the surface scum, the second motor 705 is started, driving the gear 704 to rotate. Since the gear 704 meshes with the rack 706 fixed to the side wall of the water filtration tank 702, the rotation of the gear 704 drives the second motor 705 to move laterally along the guide rail.

[0034] At this time, the screen cylinder 703, fixed to the side of the gear 704, rotates on its own axis while reciprocating along the length of the filtration pool 702 with the help of the second motor 705, thereby continuously scooping up and separating the paint sludge floating on the water surface. Through the design of a gear and rack driving the screen cylinder in a compound motion, this invention achieves automated maintenance of the waste gas treatment system, ensuring not only the cleanliness and filtration efficiency of the filtration pool but also preventing workers from directly contacting harmful paint sludge, significantly reducing labor intensity and health risks.

[0035] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A painting device for automotive parts with an automatic rotating support, comprising: The transport platform (1), the spray booth (2), the connecting frame (3), and the rotating bracket (4) are provided. The transport platform (1) is located on the side of the spray booth (2), and the connecting frame (3) is fixedly installed between the transport platform (1) and the spray booth (2). A first motor (5) is fixedly installed inside the connecting frame (3), and the output end of the first motor (5) is fixedly connected to the rotating bracket (4). The rotating bracket (4) is characterized in that a fixed circular plate (608) is fixedly connected to the top of the rotating bracket (4), a groove (609) is provided on the outer wall of the rotating bracket (4), a connecting ring (601) is slidably sleeved on the outer wall of the rotating bracket (4), a slider (602) is fixedly provided on the inner wall of the connecting ring (601), and the slider (602) is slidably fitted inside the groove (609); a connecting ring (604) is slidably sleeved on the outer wall of the rotating bracket (4) above the connecting ring (601), and a connecting post (603) is fixedly connected between the connecting ring (601) and the connecting ring (604); A connecting rod (605) is rotatably connected to the outer side of the second connecting ring (604), and a support plate (606) is rotatably connected to the end of the first connecting rod (605) away from the second connecting ring (604); a connecting rod (607) is rotatably connected to the fixed circular plate (608), and the end of the second connecting rod (607) away from the fixed circular plate (608) is rotatably connected to the end of the support plate (606) away from the first connecting rod (605); An air intake fan (707) is fixedly installed inside the spray booth (2). The output end of the air intake fan (707) is connected to an air pipe (701). The end of the air pipe (701) away from the air intake fan (707) is connected to a water filter tank (702). A rack (706) is fixedly installed on the side wall of the water filter tank (702). A second motor (705) is slidably installed on the outside of the water filter tank (702). A gear (704) is fixedly connected to the output end of the second motor (705). The gear (704) meshes with the rack (706). A sieve cylinder (703) is fixedly connected to the side of the gear (704). The sieve cylinder (703) is located inside the water filter tank (702).

2. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, The groove (609) includes a vertical guide section and a horizontal limiting section connected to the top of the vertical guide section. The slider (602) is adapted to the internal dimensions of the groove (609). By rotating the connecting ring (601), the slider (602) is engaged in the horizontal limiting section to achieve axial locking.

3. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, Multiple connecting columns (603) are provided. The multiple connecting columns (603) are evenly distributed in the circumferential direction along the axis of the rotating bracket (4) between the first connecting ring (601) and the second connecting ring (604). The two ends of the connecting column (603) are respectively perpendicularly fixed to the upper surface of the first connecting ring (601) and the lower surface of the second connecting ring (604).

4. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, Multiple support plates (606) are provided, and the multiple support plates (606) are evenly spaced along the circumference of the rotating bracket (4). The number of connecting rod one (605) and connecting rod two (607) corresponds to the number of support plates (606).

5. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, The support plate (606) has an arc-shaped structure, and the side surface of the support plate (606) away from the central axis of the rotating bracket (4) is provided with an anti-slip rubber layer to increase the contact friction with the inner wall of the component.

6. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, The outer wall of the filter pool (702) is horizontally provided with a guide rail along its length. The bottom of the second motor (705) is provided with a sliding seat that cooperates with the guide rail. The second motor (705) is slidably connected to the guide rail through the sliding seat.

7. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, The sieve cylinder (703) has a cylindrical mesh structure. The diameter of the sieve cylinder (703) is larger than the diameter of the gear (704). The rotation axis of the sieve cylinder (703) coincides with the rotation axis of the gear (704), and the lower half of the sieve cylinder (703) is submerged below the liquid surface of the filter water tank (702).

8. The automotive parts painting equipment with an automatic rotating bracket according to claim 1, characterized in that, The air pipe (701) has an L-shaped bend structure. One end of it passes through the side wall of the spray booth (2) and is connected to the air intake fan (707). The other end extends to the top of the filter water tank (702) and opens towards the liquid surface of the filter water tank (702).

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