A comprehensive spraying equipment for new energy vehicle engine bracket

Abstract

The present invention relates to the technical field of automobile parts spraying, and in particular to an all-round spraying device for an engine bracket of a new energy automobile, comprising a spray box frame, a workbench is horizontally arranged in the middle of the spray box frame, and rotating clamping components are arranged on both sides of the workbench, and the rotating clamping components are used to clamp the engine bracket and drive the engine bracket to rotate; a plurality of spraying components are evenly arranged on the top of the spray box frame, and the spraying components all include a first filter screen and a second filter screen that are mutually fitted, and a plurality of first filter holes are evenly penetrated through the first filter screen, and a plurality of rows of slide grooves are arranged on the inner side wall of the first filter screen, and each row of slide grooves passes through a plurality of first filter holes corresponding to each row, and a plurality of second filter holes are penetrated through the second filter screen corresponding to the first filter screen, and a slider that bends and extends outward is arranged at the bottom of each second filter hole, and the slider is adapted to the slide groove and rotates in the slide groove to clean up the accumulated paint.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts spraying, and in particular to an all-round spraying device for a new energy automobile engine bracket. Background Art

[0002] Auto parts spraying is a surface treatment process that can be used to form a uniform and durable coating on the surface of auto parts to prevent moisture and air from directly contacting the surface of auto parts, thereby protecting the surface of auto parts from environmental erosion and providing additional protection against wear, corrosion and chemicals.

[0003] At present, the factory adopts the traditional hoisting method for the spraying process of the engine bracket, and uses a spray gun for spraying. In the actual spraying process, the paint reaches the nozzle after being filtered through the filter, and the liquid is thrown out by the center of the high-speed rotating part driven by pneumatics, and the atomization effect is produced by centrifugal force and pneumatic force. When the paint flow and rotation speed increase, the liquid is pulled into a filamentary jet, and due to the friction with the surrounding air, it is separated into small droplets and sprayed out in atomization, thereby obtaining a high-quality surface effect. The filter used in the existing spray gun is mostly a single-layer filter, which has a poor filtering effect. Long-term use can easily cause the nozzle to be blocked, affecting the atomization effect of the paint. In addition, the filter cannot be self-cleaned when blocked, causing the paint to block part of the filter holes, forming a vicious cycle of increasingly serious blockage of the filter, causing problems such as uneven spraying and shrinkage of the engine bracket, reducing the product qualification rate. In addition, most of the existing filters are disposable filters. The large-scale use and disposal of disposable filters will burden the environment and have a high economic cost.

[0004] Therefore, the applicant provides a new energy vehicle engine bracket omnidirectional spraying equipment to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide an all-round spraying equipment for the engine bracket of a new energy vehicle, so as to solve the problems that the single-layer filter of the existing spraying equipment has poor filtering effect, is easy to clog the filter holes, and cannot self-clean the deposited paint, resulting in the paint clogging some of the filter holes and forming a vicious cycle of increasingly serious filter clogging.

[0006] In order to solve the above technical problems, the present invention provides an all-round spraying device for an engine bracket of a new energy vehicle, comprising a spray box frame, a workbench is horizontally arranged in the middle of the spray box frame, and a rotating clamping assembly is arranged on both sides of the workbench, and the rotating clamping assembly is used to clamp the engine bracket and drive the engine bracket to rotate;

[0007] A plurality of spraying components are evenly arranged on the top of the spray box frame, and the spraying components include a first filter screen and a second filter screen which are fitted together. A plurality of first filter holes are evenly penetrated on the first filter screen, and a plurality of rows of slide grooves are arranged on the inner wall of the first filter screen, and each row of slide grooves passes through a plurality of first filter holes corresponding to each row. A plurality of second filter holes are penetrated through the second filter screen corresponding to the first filter screen, and a slider which bends and extends outward is arranged at the bottom of each second filter hole. The slider is adapted to the slide groove and rotates in the slide groove to clean up the accumulated paint.

[0008] A further improvement of the technical solution of the present invention is that the first filter holes are all circular, the slide grooves evenly pass through the middle positions of the corresponding first filter holes, the sliders are smoothly bent downward to the outside, and the second filter holes are all trapezoidal in shape with larger inside and smaller outside.

[0009] A further improvement of the technical solution of the present invention is that each spray assembly includes a cylindrical outer shell, external threads are provided on the circumferential surfaces at both ends of the outer shell, a conical nozzle is arranged on the external thread at the bottom end of the outer shell through a fixing ring, a plurality of arc-shaped through holes penetrating the inner cavity are arranged on the top of the outer shell, and a cylindrical baffle is arranged extending vertically toward the inner cavity of the outer shell along the arc-shaped through holes.

[0010] A further improvement of the technical solution of the present invention is that: a first rotating outer ring is arranged on the inner side of the baffle, the first rotating outer ring extends axially to twice the length of the baffle, a plurality of arc-shaped winglets are evenly arranged on the lower outer circumferential surface of the first rotating outer ring, a first rotating inner ring is arranged on the inner side of the first rotating outer ring, a plurality of rolling bodies are embedded between the first rotating outer ring and the first rotating inner ring, a second rotating outer ring and a second rotating inner ring are arranged at the bottom of the inner cavity of the outer shell corresponding to the first rotating outer ring and the first rotating inner ring, a plurality of rolling bodies are embedded between the second rotating outer ring and the second rotating inner ring, and a sealing ring is arranged on the outside of the rolling body.

[0011] A further improvement of the technical solution of the present invention is that: relative first filter grooves are provided on the first rotating outer ring and the second rotating outer ring, and the first filter is embedded in the two first filter grooves; relative second filter grooves are provided on the first rotating inner ring and the second rotating inner ring, and the second filter is embedded in the two second filter grooves.

[0012] A further improvement of the technical solution of the present invention is that a paint bucket is arranged at the bottom of the inner cavity of the spray box frame, a high-pressure pump is arranged on one side wall of the spray box frame, the paint bucket is connected to the feed port of the high-pressure pump, the discharge port of the high-pressure pump is connected to the multi-way pipe fitting through a control valve, and the multi-way pipe fitting is connected to the corresponding spray components through multiple conduits.

[0013] A further improvement of the technical solution of the present invention is that the rotating clamping assembly includes bearing seats symmetrically arranged on both sides of the workbench, connecting rods extending inwards are respectively arranged on the two bearing seats, a frame is arranged at the end of the connecting rod, a lower clamping jaw is arranged at the end of the frame, an upper clamping jaw is arranged above the lower clamping jaw, the upper clamping jaw is hinged to the frame, a handle is hinged at the middle part of the upper clamping jaw, a rocker is hinged between the handle and the frame, and a locking bolt is arranged at the connection between the handle and the rocker.

[0014] A further improvement of the technical solution of the present invention is that both the upper clamping jaw and the lower clamping jaw are provided with truncated cone-shaped limiting blocks.

[0015] A further improvement of the technical solution of the present invention is that a horizontal support platform is arranged in the middle of the other side wall of the spray box frame, a rotary cylinder is arranged on the support platform, and the rotary cylinder is connected to a connecting rod on one side through a coupling.

[0016] A further improvement of the technical solution of the present invention is that the workbench is a trough-shaped structure, a pipeline is adapted to be arranged at the bottom of the workbench, and the pipeline is connected to a collection pool arranged at the bottom of the inner cavity of the spray box frame.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects:

[0018] 1. The present invention provides an all-round spraying equipment for a new energy vehicle engine bracket. The spraying equipment is provided with a first filter screen and a second filter screen. Double-layer filtration makes the filtered paint more delicate, enhances the atomization effect, and reduces the risk of nozzle clogging; specifically, the paint enters the inner cavity of the shell through the arc-shaped through hole, passes through the first filter hole of the first filter screen and the second filter screen of the second filter screen in sequence, and is sprayed out from the nozzle in atomization. The first filter holes are all circularly arranged, and the slide groove evenly passes through the middle position of the corresponding first filter hole to divert the paint entering the first filter hole to form two small upper and lower channels to block larger paint blocks and reduce the risk of clogging the first filter hole. The slider is smoothly bent to the outside and below, and the diverted paint flows through the surface of the slider into the second filter hole. The second filter holes are all trapezoidally arranged with a larger inner hole and a smaller outer hole to reduce the risk of clogging the second filter hole.

[0019] 2. The present invention provides an all-round spraying equipment for an engine bracket of a new energy vehicle. The spraying equipment is conducive to self-cleaning of the paint deposited on the first filter by setting a slider and a slide groove, so as to avoid a vicious cycle of increasingly serious blockage of the first filter. Specifically, the first filter and the second filter rotate during the spraying process, and the slider of the second filter slides and cleans the slide groove of the first filter. The slide groove evenly passes through the middle position of the corresponding first filter hole, so it is conducive to cleaning the paint deposited in the first filter hole, so that the first filter and the second filter can be reused, thereby increasing the service life of the first filter and the second filter, reducing the consumption of filter replacement, reducing production costs, and meeting the requirements of environmentally friendly production.

[0020] 3. The present invention provides an all-round spraying equipment for an engine bracket of a new energy vehicle. The spraying equipment is provided with an upper clamp and a lower clamp. Both the upper clamp and the lower clamp are provided with a truncated cone-shaped limit block. The truncated cone-shaped limit block is adapted to the limit hole of the engine bracket, which is beneficial to strengthen the connection with the engine bracket, prevent loosening during the rotation spraying process, and improve the stability of the spraying.

[0021] 4. The present invention provides an all-round spraying equipment for the engine bracket of a new energy vehicle. Compared with the traditional hoisting spraying, which has high requirements on the skills of the operator, the spraying equipment fixes the engine bracket on the rotating clamping assembly, and the spraying assembly is fixed on the top of the spray box frame. The operator only needs to fix the engine bracket and open the control valve, and no longer needs to have superb spraying skills, which reduces the spraying quality problems caused by improper human operation and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of a full-range spraying equipment for a new energy vehicle engine bracket;

[0024] Figure 2 This is a schematic diagram of the overall structure of another aspect of a comprehensive spraying equipment for a new energy vehicle engine bracket;

[0025] Figure 3 It is a structural schematic diagram of the spraying assembly of the present invention;

[0026] Figure 4 is a cross-sectional view of the spray assembly of the present invention;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of part A;

[0028] Figure 6 for Figure 4 A magnified schematic diagram of part B;

[0029] Figure 7 It is a schematic diagram of the partial structure of the first filter screen and the second filter screen of the present invention;

[0030] Figure 8 It is a schematic diagram of the partial structure of the first filter screen and the second filter screen of the present invention in another aspect;

[0031] Fig. 9 A partial cross-sectional view of the first filter screen and the second filter screen of the present invention;

[0032] Fig.10 It is a schematic structural diagram of the rotary clamping assembly of the present invention.

[0033] Reference numerals: 1, spray box frame; 2, workbench; 3, rotating clamping assembly; 301, bearing seat; 302, connecting rod; 303, frame; 304, lower clamping jaw; 305, upper clamping jaw; 306, handle; 307, rocker; 308, locking bolt; 309, limit block; 310, support platform; 311, rotating cylinder; 312, coupling; 4, spray assembly; 401, first filter screen; 402, second filter screen; 403, first filter hole; 404, slideway; 405, second filter hole; 406 , slider; 407, outer shell; 408, fixed ring; 409, nozzle; 410, arc-shaped through hole; 411, baffle; 412, first rotating outer ring; 413, first rotating inner ring; 414, rolling body; 415, second rotating outer ring; 416, second rotating inner ring; 417, first filter slot; 418, second filter slot; 419, paint bucket; 420, high-pressure pump; 421, control valve; 422, multi-way pipe fitting; 423, conduit; 424, arc-shaped wing; 5, collection tank; 6, engine bracket. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The present invention is further explained below in conjunction with specific implementation modes.

[0038] like Figure 1-Figure 10 As shown, the embodiment provides an all-round spraying equipment for the engine bracket 6 of a new energy vehicle, including a spray box frame 1, a workbench 2 is horizontally arranged in the middle of the spray box frame 1, and a rotating clamping assembly 3 is arranged on both sides of the workbench 2. The rotating clamping assembly 3 is used to clamp the engine bracket 6 and drive the engine bracket 6 to rotate; a plurality of spraying assemblies 4 are evenly arranged on the top of the spray box frame 1, and the spraying assemblies 4 include a first filter screen 401 and a second filter screen 402 that are mutually fitted, and a plurality of first filter holes 403 are evenly penetrated on the first filter screen 401, and a plurality of rows of slide grooves 404 are arranged on the inner side wall of the first filter screen 401, and each row of slide grooves 404 passes through a plurality of first filter holes 403 corresponding to each row, and a plurality of second filter holes 405 are penetrated in the second filter screen 402 corresponding to the first filter screen 401, and a slider 406 that bends and extends outward is arranged at the bottom of each second filter hole 405, and the slider 406 is adapted to the slide groove 404 and rotates in the slide groove 404 to clean the deposited paint. The workbench 2 is a trough-shaped structure, and a pipe is adapted to be arranged at the bottom of the workbench 2, and the pipe is connected to the collection pool 5 arranged at the bottom of the inner cavity of the spray box frame 1. The outer wall of the spray box frame 1 is installed with a PVC board, wherein the PVC board at the front of the spray box frame 1 is arranged in a double-door structure, the upper layer is convenient for taking and placing the engine bracket 6, and the lower layer is convenient for taking and placing the paint bucket 419. The PVC board encloses the spray box frame 1 and effectively prevents the paint mist and solvent vapor from escaping to the outside, keeps the spray environment clean, and reduces the pollution to the external environment; the enclosed spray box frame 1 can isolate the external interfering airflow, such as the airflow formed by the gaps of doors and windows, ensure the stability of the airflow on the workbench 2, and improve the uniformity of spraying and the quality of the coating.

[0039] like Figure 1-Figure 2As shown, in this embodiment, a paint bucket 419 is arranged at the bottom of the inner cavity of the spray box frame 1, and a high-pressure pump 420 is arranged on one side wall of the spray box frame 1. The paint bucket 419 is connected to the feed port of the high-pressure pump 420, and the discharge port of the high-pressure pump 420 is connected to the multi-way pipe fitting 422 through the control valve 421, and the multi-way pipe fitting 422 is connected to the corresponding spray assembly 4 through multiple conduits 423. The high-pressure pump 420, the control valve 421, the multi-way pipe fitting 422, the conduit 423 and the spray assembly 4 are connected in sequence in a closed manner, and the closed connection ensures that there is no leakage under high pressure during the entire process of the paint circulation, and ensures the overall sealing and safety; the closed connection method can maintain the pressure of the fluid in the system, and ensure that the pressure of the spraying process is uniform and continuous. The high-pressure pump 420, the control valve 421, the multi-way pipe fitting 422 and the conduit 423 are all existing products. The high-pressure pump 420 pressurizes the fluid paint through the mechanical structure inside the pump; under the action of pressure, the paint is drawn from the paint bucket 419 by the high-pressure pump 420, pressurized by the high-pressure pump 420, passes through the control valve 421, the multi-way pipe fitting 422, the conduit 423 and the spray component 4, and finally sprayed out in atomization through the nozzle 409; the control valve 421 can be opened and closed quickly to control the start and end of the spraying operation, and can also adjust the paint flow; the multi-way pipe fitting 422 connects a control valve 421 and several conduits 423 together to realize the diversion of the paint, complete the multi-path transportation of the paint, and transmits the paint to multiple spray components 4, so that multiple spray components 4 can perform spraying operations at the same time, and the spraying area can completely cover the surface of the engine bracket 6, thereby improving production efficiency and quality. The spray assembly 4 is fixed on the top of the spray box frame 1 to ensure that the position of the nozzle 409 does not change during the spraying operation, thereby reducing coating defects caused by position changes and improper position adjustments, such as uneven thickness, missed spraying or over-spraying; the fixed spraying position reduces the time for manual adjustment and improves production efficiency; at the same time, the fixed spraying position can ensure that the spraying effect of each engine bracket 6 is consistent, thereby improving product consistency.

[0040] like Figure 3-Figure 9As shown, in this embodiment, the first filter holes 403 are all circular, the slide grooves 404 evenly pass through the middle position of the corresponding first filter holes 403, the sliders 406 are smoothly bent downward to the outside, and the second filter holes 405 are all trapezoidal with a larger inner side and a smaller outer side. Each spray assembly 4 includes a cylindrical shell 407, and both ends of the circumferential surface of the shell 407 are provided with external threads. The bottom end of the shell 407 is provided with a conical nozzle 409 through a fixing ring 408. The nozzle 409 is provided with a conical flow channel, and a long and small flow channel is provided at the bottom of the conical flow channel; when the paint passes through the flow channel of the nozzle 409, the flow channel gradually narrows, the flow rate increases, and the static pressure decreases, so that the paint is subjected to a large pressure difference, so that the molecules inside the paint are sheared, forming an isotropic shear field. Under the action of this shear field, the cohesive force between the paint molecules gradually decreases and the liquid fluidity increases, thereby forming an atomization effect in which the paint is dispersed into tiny particles. A good atomization effect can make the paint particles smaller and more evenly distributed, thereby forming a smooth and uniform coating on the surface of the engine bracket 6. In addition, the spraying equipment is provided with a first filter 401 and a second filter 402, and double-layer filtration makes the filtered paint more delicate, enhances the atomization effect, and reduces the risk of nozzle clogging; specifically, the paint enters the inner cavity of the shell 407 through the arc-shaped through hole 410, passes through the first filter hole 403 of the first filter 401 and the second filter hole 405 of the second filter 402 in sequence, and is sprayed out from the nozzle 409 in atomization. The first filter holes 403 are all circularly arranged, and the slide groove 404 evenly passes through the middle position of the corresponding first filter hole 403, so that the paint entering the first filter hole 403 is diverted to form two small channels above and below, blocking larger paint blocks and reducing the risk of clogging the first filter hole 403. The slider 406 is smoothly bent to the outside and below, and the diverted paint flows through the surface of the slider 406 into the second filter hole 405. The second filter holes 405 are all trapezoidally arranged with a large inside and a small outside, so that the paint is difficult to enter and easy to exit, which is convenient for cleaning, and the risk of clogging the second filter hole 405 is reduced.

[0041] like Figure 3-Figure 9As shown, in this embodiment, a plurality of arc-shaped through holes 410 penetrating the inner cavity are arranged at the top of the housing 407, and a cylindrical baffle 411 is arranged vertically extending toward the inner cavity of the housing 407 along the arc-shaped through holes 410. A first rotating outer ring 412 is arranged inside the baffle 411, and the first rotating outer ring 412 extends axially to twice the length of the baffle 411. A plurality of arc-shaped fins 424 are evenly arranged on the outer circumferential surface of the lower part of the first rotating outer ring 412. A first rotating inner ring 413 is arranged inside the first rotating outer ring 412, and a plurality of rolling bodies 414 are embedded between the first rotating outer ring 412 and the first rotating inner ring 413. A second rotating outer ring 415 and a second rotating inner ring 416 are arranged at the bottom of the inner cavity of the housing 407 corresponding to the first rotating outer ring 412 and the first rotating inner ring 413, and a plurality of rolling bodies 414 are embedded between the second rotating outer ring 415 and the second rotating inner ring 416, and a sealing ring is arranged outside the rolling body 414. The first rotating outer ring 412 and the second rotating outer ring 415 both have opposite first filter grooves 417, and the first filter 401 is embedded in the two first filter grooves 417. The first rotating inner ring 413 and the second rotating inner ring 416 both have opposite second filter grooves 418, and the second filter 402 is embedded in the two second filter grooves 418. The spraying equipment is provided with a slider 406 and a slide groove 404, which is conducive to self-cleaning of the paint accumulated in the first filter 401, avoiding a vicious cycle of increasingly serious blockage of the first filter 401. Specifically, the paint flows in from the arc-shaped through hole 410 and impacts the arc-shaped wing 424. The arc-shaped wing 424 rotates to drive the first rotating outer ring 412 to rotate. The first rotating outer ring 412 drives the first filter 401 to rotate. Therefore, the first filter 401 and the second filter 402 rotate relative to each other during the spraying process. The slider 406 of the second filter 402 slides and cleans the slide groove 404 of the first filter 401. The slide groove 404 evenly passes through the middle position of the corresponding first filter hole 403, so it is conducive to cleaning the paint accumulated in the first filter hole 403, so that the first filter 401 and the second filter 402 can be reused, thereby increasing the service life of the first filter 401 and the second filter 402, reducing the consumption of filter replacement, reducing production costs, and meeting the requirements of environmentally friendly production.

[0042] like Figure 1-Figure 2 , Fig.10As shown, in this embodiment, the rotating clamping assembly 3 includes bearing seats 301 symmetrically arranged on both sides of the workbench 2, and connecting rods 302 extending inward are respectively arranged on the two bearing seats 301, and a frame 303 is arranged at the end of the connecting rod 302, and a lower clamping jaw 304 is arranged at the end of the frame 303. An upper clamping jaw 305 is correspondingly arranged above the lower clamping jaw 304, and the upper clamping jaw 305 is hinged to the frame 303. A handle 306 is hingedly arranged in the middle of the upper clamping jaw 305, and a rocker 307 is hinged between the handle 306 and the frame 303, and a locking bolt 308 is arranged at the connection between the handle 306 and the rocker 307. The frame 303, the upper clamping jaw 305, the handle 306 and the rocker 307 constitute a four-bar mechanism. The clamping of the rotating clamping assembly 3 utilizes the "dead point" principle in the four-bar mechanism, that is, at certain specific positions during the movement of the four-bar mechanism, the relative movement between the connecting rods stops or the speed is zero. At these positions, the four-bar mechanism cannot continue to move smoothly and will stagnate, thereby achieving a fast and stable clamping effect; at the "dead point" position, even if there is a large reaction force, the engine bracket 6 is not easy to loosen, and a locking bolt 308 is set at the connection between the handle 306 and the rocker 307, further enhancing the stability and reliability of the clamping. A truncated cone-shaped limit block 309 is set on both the upper clamping jaw 305 and the lower clamping jaw 304. The truncated cone-shaped limit block 309 is adapted to the limit hole of the engine bracket 6. On the one hand, it is conducive to strengthening the connection with the engine bracket 6, preventing loosening during the rotary spraying process, and improving the stability of the spraying. On the other hand, it is used for positioning during clamping. When clamping the engine bracket 6, the limit block 309 of the lower clamping jaw 304 is used to position the engine bracket 6. By pressing the handle 306, the upper clamping jaw 305 approaches the lower clamping jaw 304 until the limit block 309 of the upper clamping jaw 305 completely abuts against the limit hole of the engine bracket 6. When the handle 306 and the connecting rod 302 are in line, the rotating clamping assembly 3 is in the "dead point" position, and the rotating clamping assembly 3 clamps the engine bracket 6 and is further fixed by the locking bolt 308. The rotating clamping assembly 3 clamps and fixes the two ends of the engine bracket 6, which is conducive to increasing the stability of the engine bracket 6, preventing displacement during the spraying process, ensuring the accurate positioning of the engine bracket 6 during the spraying process, and improving the spraying accuracy and product quality.

[0043] like Figure 1-Figure 2 , Fig.10As shown, in this embodiment, a horizontal support platform 310 is set in the middle of the other side wall of the spray box frame 1, and a rotating cylinder 311 is set on the support platform 310. The rotating cylinder 311 is connected to the connecting rod 302 on one side through a coupling 312. The outer wall of the spray box frame 1 fixes the rotating cylinder 311 through the support platform 310, and the rotating cylinder 311 is connected to the connecting rod 302 on one side through the coupling 312. The bearing seat 301 provides a stable support for the engine bracket 6 to ensure the precise positioning of the engine bracket 6 during the rotation process; by connecting the rotating cylinder 311 at one end, the rotation of the engine bracket 6 can be realized, and the rotating cylinder 311 provides power to control the rotation angle and speed of the engine bracket 6. Since the engine bracket 6 is a thin plate part, the engine bracket 6 can be sprayed in all directions by rotation.

[0044] The spraying method is as follows:

[0045] S1. Place the prepared paint in the paint bucket 419, check and debug the omnidirectional spraying equipment, and ensure that the rotating clamping assembly 3 and the spraying assembly 4 operate normally;

[0046] S2, open the PVC door on the upper layer of the spray box frame 1, lift up the handles 306 located on both sides of the workbench 2, place the engine bracket 6 on the two lower clamps 304, press the handle 306 downward, both sides of the engine bracket 6 are clamped and fixed by the upper clamps 305, and close the PVC door on the upper layer of the spray box frame 1;

[0047] S3, start the rotating cylinder 311 to drive the engine bracket 6 to rotate;

[0048] S4, turn on the high pressure pump 420, open the control valve 421, and the paint is sprayed out from the spray head 409 to cover the surface of the engine bracket 6;

[0049] S5. After the engine bracket 6 is sprayed, the control valve 421 is first closed to stop the spraying of the paint, and then the high-pressure pump 420 and the rotating cylinder 311 are closed;

[0050] S6, let it stand for a while until the paint on the surface of the engine bracket 6 is dry, then open the PVC door on the upper layer of the spray box frame 1, lift the handle 306, release the upper clamp 305, and take out the engine bracket 6;

[0051] S7. Take out the rear engine bracket 6, inspect it visually, and place it neatly.

[0052] The working principle of the technical solution provided by the present invention is as follows:

[0053] The staff first fixes the engine bracket 6 on the rotating clamping assembly 3. The specific operation is to first use the limit block 309 of the lower clamping jaw 304 to position the engine bracket 6, and by pressing the handle 306, the upper clamping jaw 305 approaches the lower clamping jaw 304 until the limit block 309 of the upper clamping jaw 305 completely abuts against the limit hole of the engine bracket 6. When the handle 306 and the connecting rod 302 are in line, the rotating clamping assembly 3 is in the "dead point" position, the rotating clamping assembly 3 clamps the engine bracket 6, and is further fixed by the locking bolt 308. The rotating clamping assembly 3 clamps and fixes the two ends of the engine bracket 6. The staff starts the rotating cylinder 311 to control the rotation angle and speed of the engine bracket 6, and then opens the high-pressure pump 420 and the control valve 421 in sequence. The paint is sprayed out from the spraying assembly 4 and covers the surface of the engine bracket 6. The specific operation of spraying is that the paint enters the inner cavity of the shell 407 through the arc-shaped through hole 410, and the paint flows in from the arc-shaped through hole 410 and impacts the arc-shaped wing 424. The arc-shaped wing 424 rotates and drives the first rotating outer ring 412 to rotate. The first rotating outer ring 412 drives the first filter 401 to rotate. Therefore, the first filter 401 and the second filter 402 rotate relative to each other during the spraying process. The slider 406 of the second filter 402 slides and cleans the slide groove 404 of the first filter 401, and the paint passes through the first filter 401 in sequence. The first filter hole 403 and the second filter hole 405 of the second filter screen 402 are atomized and sprayed from the nozzle 409. The first filter hole 403 is circular in design. The slide groove 404 evenly passes through the middle position of the corresponding first filter hole 403, so that the paint entering the first filter hole 403 is diverted to form two small channels above and below, which block larger paint blocks and reduce the risk of clogging of the first filter hole 403. The slider 406 is smoothly bent to the outside and below, and the diverted paint flows through the surface of the slider 406 into the second filter hole 405. The second filter hole 405 is a trapezoidal design with a large inside and a small outside. The paint is difficult to enter and easy to exit, which is easy to clean, reducing the risk of clogging of the second filter hole 405. After the engine bracket 6 is sprayed, the staff first closes the control valve 421 to stop the spraying of the paint, and then closes the high-pressure pump 420 and the rotating cylinder 311, and leaves it to dry to complete the spraying.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A omnidirectional spraying equipment for new energy vehicle engine bracket, characterized in that: It comprises a spray box frame (1), a workbench (2) is horizontally arranged in the middle of the spray box frame (1), and rotating clamping components (3) are arranged on both sides of the workbench (2), and the rotating clamping components (3) are used to clamp the engine bracket (6) and drive the engine bracket (6) to rotate; A plurality of spraying assemblies (4) are evenly arranged on the top of the spraying box frame (1), and each of the spraying assemblies (4) comprises a first filter screen (401) and a second filter screen (402) which are fitted together, a plurality of first filter holes (403) are evenly penetrated on the first filter screen (401), a plurality of rows of slide grooves (404) are arranged on the inner side wall of the first filter screen (401), each row of slide grooves (404) passes through a plurality of first filter holes (403) corresponding to each row, a plurality of second filter holes (405) are penetrated through the second filter screen (402) corresponding to the first filter screen (401), a slider (406) which bends and extends outward is arranged at the bottom of each second filter hole (405), the slider (406) is adapted to the slide groove (404), and rotates in the slide groove (404) to clean up the accumulated paint.

2. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 1 is characterized in that: The first filter holes (403) are all circular in shape, the slide grooves (404) evenly pass through the middle positions of the corresponding first filter holes (403), the sliders (406) are smoothly curved downward toward the outside, and the second filter holes (405) are all trapezoidal in shape with a larger inside and a smaller outside.

3. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 1 is characterized in that: Each spray assembly (4) comprises a cylindrical outer shell (407), both ends of the circumferential surface of the outer shell (407) are provided with external threads, the outer threads at the bottom end of the outer shell (407) are provided with a conical spray head (409) through a fixing ring (408), a plurality of arc-shaped through holes (410) penetrating the inner cavity are provided at the top of the outer shell (407), and a cylindrical baffle (411) is provided extending vertically along the arc-shaped through holes (410) toward the inner cavity of the outer shell (407).

4. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 3 is characterized in that: A first rotating outer ring (412) is arranged on the inner side of the baffle (411), the first rotating outer ring (412) extends axially to twice the length of the baffle (411), a plurality of arc-shaped fins (424) are evenly arranged on the lower outer circumferential surface of the first rotating outer ring (412), a first rotating inner ring (413) is arranged on the inner side of the first rotating outer ring (412), a plurality of rolling bodies (414) are embedded between the first rotating outer ring (412) and the first rotating inner ring (413), a second rotating outer ring (415) and a second rotating inner ring (416) are arranged at the bottom of the inner cavity of the housing (407) corresponding to the first rotating outer ring (412) and the first rotating inner ring (413), a plurality of rolling bodies (414) are embedded between the second rotating outer ring (415) and the second rotating inner ring (416), and a sealing ring is arranged on the outer side of the rolling body (414).

5. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 4 is characterized in that: The first rotating outer ring (412) and the second rotating outer ring (415) are both provided with first filter screen grooves (417) opposite to each other, and the first filter screen (401) is embedded in the two first filter screen grooves (417); the first rotating inner ring (413) and the second rotating inner ring (416) are both provided with second filter screen grooves (418) opposite to each other, and the second filter screen (402) is embedded in the two second filter screen grooves (418) opposite to each other.

6. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 1 is characterized in that: A paint bucket (419) is arranged at the bottom of the inner cavity of the spray box frame (1), and a high-pressure pump (420) is arranged on a side wall of the spray box frame (1). The paint bucket (419) is connected to a feed port of the high-pressure pump (420), and a discharge port of the high-pressure pump (420) is connected to a multi-way pipe fitting (422) via a control valve (421), and the multi-way pipe fitting (422) is connected to corresponding spray assemblies (4) via a plurality of conduits (423).

7. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 1 is characterized in that: The rotary clamping assembly (3) comprises bearing seats (301) symmetrically arranged on both sides of the workbench (2), connecting rods (302) extending inwardly are respectively arranged on the two bearing seats (301), a frame (303) is arranged at the end of the connecting rod (302), a lower clamping jaw (304) is arranged at the end of the frame (303), an upper clamping jaw (305) is arranged above the lower clamping jaw (304), the upper clamping jaw (305) is hinged to the frame (303), a handle (306) is hingedly arranged in the middle of the upper clamping jaw (305), a rocker (307) is hinged between the handle (306) and the frame (303), and a locking bolt (308) is arranged at the connection between the handle (306) and the rocker (307).

8. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 7 is characterized in that: A truncated cone-shaped limiting block (309) is provided on both the upper clamping jaw (305) and the lower clamping jaw (304).

9. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 7, characterized in that: A horizontal support platform (310) is arranged in the middle of the other side wall of the spray box frame (1), and a rotating cylinder (311) is arranged on the support platform (310). The rotating cylinder (311) is connected to a connecting rod (302) on one side via a coupling (312).

10. The all-round spraying equipment for the engine bracket of a new energy vehicle according to claim 1, characterized in that: The workbench (2) is a trough-shaped structure. A pipeline is adapted to be arranged at the bottom of the workbench (2), and the pipeline is connected to a collection pool (5) arranged at the bottom of the inner cavity of the spray box frame (1).

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