A spraying device for aluminum alloy die castings

The aluminum alloy die-casting part spraying device, which uses a multi-axis drive system and a vision feedback system, solves the problem of uneven spraying on the inclined or curved surfaces of molds in traditional devices, and achieves complete coverage of the lubricating film and efficient production.

CN224586101UActive Publication Date: 2026-08-04JIANGXI ZHONGYAN METAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI ZHONGYAN METAL TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional aluminum alloy die-casting spraying equipment lacks adaptability, precision, and automation, making it difficult to effectively cover the inclined or curved surfaces of the mold. This results in missing lubricating film in localized areas of the cavity. Furthermore, the mold fixing mechanism has insufficient positioning accuracy, making it prone to displacement during the spraying process, which affects the uniformity of lubricating film distribution and production efficiency.

Method used

The aluminum alloy die-casting part spraying device adopts a multi-axis drive system and a vision feedback system. The spraying trajectory is monitored in real time by a camera, and the spraying parameters are dynamically adjusted by the main control circuit board to realize the compound movement of the spraying head and ensure complete coverage of the lubricating film. The clamping wheels stabilize and fix the mold to prevent displacement, thereby improving positioning accuracy and automation.

Benefits of technology

It enables precise spraying of mold inclined or curved surfaces, ensuring uniform coverage of the lubricating film, improving the automation and precision consistency of the spraying operation, shortening the preparation time, and increasing production efficiency.

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Abstract

This utility model relates to the field of aluminum alloy die casting processing technology, and discloses an aluminum alloy die casting spraying device, including: clamping wheels set on both sides of the processing table for mold positioning and clamping; a top plate supported above the processing table by columns; a three-dimensional adjustment component configured on the lower surface of the top plate; a fixed seat supported by the moving end of the adjustment component; a fifth drive motor installed on the top of the fixed seat; a U-shaped seat connected to the bottom of the fixed seat; a sixth drive motor set on the outside of the U-shaped seat to drive the internal rotating shaft to rotate; a spraying head installed at the lower end of the rotating shaft; a liquid inlet end of the spraying head connected to a liquid supply system through a flexible liquid guide tube; vision cameras integrated on both sides of the upper part of the spraying head; and a main control circuit board integrated into the inner cavity of the top plate. This device achieves multi-angle adjustment of the spraying head through a rotating mechanism composed of the U-shaped seat and the sixth drive motor. The rotating shaft drives the spraying head to complete pitching motion, and the flexible liquid guide tube can ensure a continuous supply of coating material during multi-axis movement.
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Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy die casting processing technology, specifically to an aluminum alloy die casting spraying device. Background Technology

[0002] Aluminum alloy die castings are aluminum alloy parts manufactured through a die casting process (high pressure casting). They feature high precision, lightweight, high strength, and good surface quality, and are widely used in the automotive, electronics, and aerospace industries. Typical applications of aluminum alloy die castings include: Automotive industry: engine blocks, gearbox housings, steering gear brackets; Consumer electronics: 5G base station heat sinks, laptop shells; New energy field: battery pack shells, motor shells; Medical devices: surgical instrument shells. Aluminum alloy die castings require the use of a spraying device. This device evenly coats the mold cavity surface with a release agent, forming a lubricating film to prevent the high-temperature molten aluminum alloy from directly contacting the mold.

[0003] Traditional aluminum alloy die-casting coating equipment has gradually revealed its shortcomings in terms of adaptability, accuracy, and automation. To address these issues, some aluminum alloy die-casting coating equipment suffers from limitations in the angle adjustment range of the spray head's motion mechanism, making it difficult to effectively cover the inclined or curved surfaces of the mold, resulting in missing lubricating film in localized areas of the cavity. Furthermore, the lack of real-time monitoring and feedback mechanisms prevents dynamic adjustment of the spray trajectory based on the actual position of the mold cavity, leading to repetitive or missed areas in the spraying operation. Insufficient positioning accuracy of the mold fixing mechanism causes the mold to easily shift during spraying, resulting in uneven lubricating film distribution and low clamping efficiency, impacting the overall production cycle. Therefore, a new aluminum alloy die-casting coating equipment is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a coating device for aluminum alloy die castings, thereby solving the aforementioned technical problem of missing lubricating film in localized areas of the mold cavity.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for aluminum alloy die-casting parts, comprising:

[0008] The processing table, and clamping wheels are set on both sides of the upper surface of the processing table. A top plate is added directly above the processing table, and an adjustment component is connected to the lower surface of the top plate. A fixed seat is installed on the moving end of the adjustment component, and a fifth drive motor is installed on the top of the fixed seat through a motor seat. The main control circuit board is also installed in the inner cavity of the top plate.

[0009] The U-shaped base is located at the bottom of the fixed base, and a sixth drive motor is mounted on the outside of the U-shaped base via a motor base. A rotating shaft is rotatably connected to the inner cavity of the U-shaped base, and the rotating shaft is coaxially connected to the sixth drive motor.

[0010] The spray head is located on the lower surface of the rotating shaft, and a liquid guide tube is connected to the liquid inlet end on the back of the spray head. Cameras are installed on both sides of the upper part of the spray head. The aluminum alloy die-casting mold to be sprayed is placed on the upper surface of the processing table. The mold is clamped and fixed in both directions by the clamping wheels on both sides of the processing table to ensure that the mold remains stable during the spraying process. The adjustment component on the lower surface of the top plate drives the fixed seat to move, adjusting the U-shaped seat and the spray head installed at the bottom of the fixed seat to the initial position above the mold cavity. The fifth drive motor drives the fixed seat to rotate, synchronously driving the U-shaped seat and the spray head to adjust the horizontal angle. The sixth drive motor drives the rotating shaft to rotate, so that the spray head can adjust the vertical pitch angle. The composite motion trajectory involves an external mold release agent storage tank continuously supplying it to the spray head via a pump and guide pipe. The spray head sprays the mold cavity surface according to a preset program or a path corrected in real time by the main control circuit board. During spraying, a camera captures real-time image data of the cavity. Based on the visual information fed back from the camera, the main control circuit board dynamically adjusts the spray head's moving speed, spray flow rate, and angle parameters to ensure that the lubricating film completely covers the cavity surface. After a single spraying cycle, the clamping wheels release the mold, and the processing table moves the mold out of the spraying station. Simultaneously, the adjustment components... The spray head is reset to enter the next working cycle. The main control circuit board consists of an image processing module, a motion control module, a fluid control module, a communication interface module, and a data processing and decision-making module. The image processing module receives and analyzes real-time image data of the mold cavity collected by the cameras on both sides of the spray head. It identifies the cavity contour, surface curvature, and current spray trajectory position through edge detection and feature extraction algorithms, providing reference data for path correction. The motion control module generates control commands for the three-dimensional adjustment component, the fifth drive motor, and the sixth drive motor to realize the spatial positioning and angle adjustment of the spray head. The PID algorithm ensures that the moving speed, acceleration, and angle deflection of the spray head are accurately matched with the preset parameters or dynamic correction values. The fluid control module dynamically adjusts the supply flow and pressure of the release agent in the liquid guide tube according to the moving speed of the spray head and the surface characteristics of the cavity. It uses pulse width modulation technology to control the opening of the solenoid valve to avoid uneven liquid supply or splashing caused by changes in the angle of the spray head. The communication interface module and the data processing and decision-making module establish a data interaction channel with the die-casting machine's main control system, the host computer software, and external sensors. It supports Modbus-TCP or EtherCAT protocols to realize production instruction reception, status data feedback and multi-device collaborative control. The module structure and usage in the main control circuit board are all existing technologies, so they will not be described in detail here.

[0011] Preferably, the processing table has side grooves on both sides, and a bidirectional lead screw is rotatably connected to the inner cavity of each side groove. The front end of the bidirectional lead screw is coaxially connected to a first drive motor. The first drive motor drives the bidirectional lead screw to rotate. Utilizing the bidirectional characteristic of the bidirectional lead screw, the sliding plates on both sides move synchronously towards or away from each other along the side grooves. By controlling the rotation direction and number of rotations of the bidirectional lead screw, the distance between the two sets of clamping wheels can be precisely adjusted to adapt to molds of different widths within a certain range.

[0012] Preferably, each of the bidirectional lead screws has a pulley mounted at its rear end, and a transmission belt connects adjacent pulleys. Sliding plates are fitted onto the front and rear surfaces of the bidirectional lead screws. The transmission belt connects the pulleys at the rear ends of adjacent bidirectional lead screws, forming a mechanical synchronous transmission chain. When either of the first drive motors starts, power is transmitted to the other bidirectional lead screw via the pulleys and transmission belt, achieving coordinated displacement of the sliding plates on both sides. The belt drive mechanism ensures the synchronicity of the movement of the clamping wheels on both sides, eliminating the risk of mold tilting caused by unilateral drive and significantly improving the parallelism and stability of mold clamping.

[0013] Preferably, each sliding plate is equipped with a side connecting seat, and an electric push rod is added to the upper outer part of the side connecting seat. A connecting seat is connected to the upper inner part of the side connecting seat. The telescopic end of the electric push rod is connected to the connecting seat, and a second drive motor is mounted on the top of the connecting seat via a motor mount. The clamping wheel is rotatably connected to the bottom of the connecting seat, and the second drive motor is coaxially connected to the clamping wheel. The telescopic movement of the electric push rod drives the clamping wheel to rise and fall through the connecting seat. At the same time, the second drive motor can drive the clamping wheel to rotate. By combining the control of the stroke of the electric push rod and the direction of the second drive motor, the spatial posture adjustment of the clamping wheel can be achieved.

[0014] Preferably, the adjustment assembly includes a horizontal lead screw and a vertical lead screw. The horizontal lead screw is located at the center of the inner cavity of the top plate, and bearing seats are rotatably connected to the ends of both the horizontal and vertical lead screws. A horizontal slider and a vertical slider are respectively fitted onto the surfaces of the horizontal and vertical lead screws. The vertical lead screw is rotatably connected to the lower surface of the horizontal slider, and a fixed seat is connected to the vertical slider. A third drive motor drives the horizontal lead screw to rotate, causing the horizontal slider to move horizontally along the inner cavity of the top plate. A fourth drive motor drives the vertical lead screw to rotate, causing the vertical slider to move vertically below the horizontal slider. Finally, the fixed seat achieves three-dimensional spatial positioning of the spray head.

[0015] Preferably, the ends of the horizontal and vertical lead screws are respectively connected to a third and a fourth drive motor, and the third and fourth drive motors are respectively connected to corresponding bearing seats through motor mounts. The third and fourth drive motors are independently connected to the horizontal and vertical lead screws through bearing seats, forming a decoupled drive system. The main control circuit board can perform speed synchronization control or position interpolation control on the two motors.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a spraying device for aluminum alloy die castings, which has the following beneficial effects:

[0018] 1. The aluminum alloy die-casting spraying device, with its U-shaped base and sixth drive motor forming a rotating mechanism, further expands the angle adjustment range of the spraying head. The rotating shaft drives the spraying head to achieve pitching motion, which can accurately spray the mold's inclined or curved surfaces, ensuring that the release agent forms a complete lubricating film on the cavity surface. The cameras installed on both sides of the spraying head form a visual feedback system, which monitors the spraying trajectory and the cavity position in real time. The main control circuit board dynamically corrects the movement path and spraying parameters, significantly improving the automation level and accuracy consistency of the spraying operation.

[0019] 2. The aluminum alloy die-casting spraying device has clamping wheels on both sides of the processing table to stably clamp the mold, prevent the mold from shifting during the spraying process, ensure that the lubricating film is evenly covered on the surface of the cavity, and at the same time, its layout provides a reliable positioning reference for the mold, which facilitates quick clamping and improves the operation cycle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the processing table of this utility model;

[0022] Figure 3 This is a schematic diagram of the clamping wheel and its connecting structure of the present invention;

[0023] Figure 4 This is a cross-sectional view of the top plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the structural composition of the adjustment component of this utility model;

[0025] Figure 6 This is a schematic diagram of the U-shaped seat and its connection structure of this utility model.

[0026] In the diagram: 1. Processing table; 2. Side groove; 3. Bidirectional lead screw; 4. Pulley; 5. Transmission belt; 6. First drive motor; 7. Sliding plate; 8. Side connecting seat; 9. Electric push rod; 10. Connecting seat; 11. Second drive motor; 12. Clamping wheel; 13. Top plate; 14. Adjustment assembly; 15. Horizontal lead screw; 16. Third drive motor; 17. Horizontal slider; 18. Vertical lead screw; 19. Fourth drive motor; 20. Vertical slider; 21. Fixed seat; 22. Fifth drive motor; 23. U-shaped seat; 24. Sixth drive motor; 25. Rotary shaft; 26. Spray head; 27. Liquid guide tube; 28. Camera. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides a technical solution: a spraying device for aluminum alloy die-casting parts, comprising: (see details) Figure 1 , Figure 4 , Figure 5 and Figure 6 The processing table 1 and clamping wheels 12 are provided on both sides of the upper surface of the processing table 1. A top plate 13 is provided directly above the processing table 1, and an adjustment component 14 is connected to the lower surface of the top plate 13. A fixed base 21 is installed on the moving end of the adjustment component 14, and a fifth drive motor 22 is installed on the top of the fixed base 21 through a motor base. A main control circuit board is also installed in the inner cavity of the top plate 13.

[0029] U-shaped seat 23 is located at the bottom of fixed seat 21, and a sixth drive motor 24 is mounted on the outside of U-shaped seat 23 via a motor seat, and a rotating shaft 25 is rotatably connected to the inner cavity of U-shaped seat 23, and the rotating shaft 25 is coaxially connected to the sixth drive motor 24.

[0030] The spray head 26 is located on the lower surface of the rotating shaft 25, and the liquid inlet end of the back of the spray head 26 is connected to the liquid guide tube 27. Cameras 28 are installed on both sides of the upper part of the spray head 26. The aluminum alloy die-casting mold to be sprayed is placed on the upper surface of the processing table 1. The mold is bidirectionally clamped and fixed by the clamping wheels 12 on both sides of the processing table 1 to ensure that the mold remains stable during the spraying process. The adjustment component 14 on the lower surface of the top plate 13 drives the fixed base 21 to move, adjusting the U-shaped seat 23 and the spraying head 26 installed at the bottom of the fixed base 21 to the initial position above the mold cavity. The fifth drive motor 22 drives the fixed base 21 to rotate, synchronously driving the U-shaped seat 23 and the spraying head 26 to adjust the horizontal angle. The sixth drive motor 24 drives the rotating shaft 25 to rotate, so that the spraying head 26 can adjust the pitch angle in the vertical direction, forming a compound motion trajectory. The external mold release agent storage tank continuously delivers it to the spraying head 26 through the pump and the liquid guide pipe 27. The spraying head 26 sprays the surface of the mold cavity according to the preset program or the path corrected in real time by the main control circuit board. During the spraying process, the camera 28 collects the cavity image data in real time. Based on the visual information fed back by the camera 28, the main control circuit board adjusts the spraying head 26. The moving speed, spray flow rate, and angle parameters are dynamically adjusted to ensure that the lubricating film completely covers the cavity surface. After a single spraying is completed, the clamping wheel 12 releases the clamp on the mold, and the processing table 1 moves the mold out of the spraying station. At the same time, the adjustment component 14 drives the spraying head 26 to reset and enter the next work cycle. The clamping wheels 12 set on both sides of the processing table 1 realize the precise positioning and anti-offset clamping of the mold, effectively avoiding the problem of uneven distribution of lubricating film caused by mold displacement during the spraying process. At the same time, its standardized layout provides a quick clamping benchmark for the mold, significantly shortening the preparation time. The composite motion mechanism composed of the adjustment component 14 and the fifth drive motor 22 enables the spraying head 26 to have three-dimensional space precise positioning capability, which can adapt to the spraying needs of molds of different sizes and specifications, and improve the versatility of the equipment. The rotating mechanism composed of the U-shaped seat 23 and the sixth drive motor 24 drives the spraying head 26 through the rotating shaft 25 to realize the pitch angle adjustment, breaking through the angle limitation of traditional spraying equipment, and is particularly suitable for uniform spraying of complex cavities such as mold slopes and curved surfaces.

[0031] Please see Figure 2 and Figure 3The processing table 1 has side grooves 2 on both sides, and a bidirectional lead screw 3 is rotatably connected to the inner cavity of each side groove 2. The front end of the bidirectional lead screw 3 is coaxially connected to a first drive motor 6. The first drive motor 6 drives the bidirectional lead screw 3 to rotate. Utilizing the bidirectional characteristic of the bidirectional lead screw 3, the sliding plates 7 on both sides move synchronously towards or away from each other along the side grooves 2. By controlling the rotation direction and number of turns of the bidirectional lead screw 3, the distance between the two sets of clamping wheels 12 can be precisely adjusted to adapt to molds of different widths within a certain range. The rear end of each bidirectional lead screw 3 is equipped with a pulley 4, and a transmission belt 5 connects adjacent pulleys 4. Sliding plates 7 are sleeved on both the front and rear surfaces of the bidirectional lead screw 3. The transmission belt 5 connects to the pulley 4 at the rear end of the adjacent bidirectional lead screw 3, forming a mechanical synchronous transmission chain. When either of the first drive motors 6 starts, the power is transmitted to the other bidirectional lead screw 3 through the pulley 4 and the transmission belt 5, realizing the linkage displacement of the sliding plates 7 on both sides. The belt transmission mechanism ensures the synchronicity of the movement of the clamping wheels 12 on both sides, eliminates the risk of mold tilting caused by single-sided drive, and significantly improves the parallelism and stability of mold clamping. Side connecting seats 8 are installed on the outer side of the sliding plates 7, and electric push rods 9 are added to the upper outer side of the side connecting seats 8. A connecting seat 10 is connected to the upper inner side of the side connecting seats 8. The telescopic end of the electric push rod 9 is connected to the connecting seat 10. A second drive motor 11 is installed on the top of the connecting seat 10 through a motor seat. The clamping wheel 12 is rotatably connected to the bottom of the connecting seat 10. The second drive motor 11 and the clamping wheel 12 are coaxially connected. The telescopic movement of the electric push rod 9 drives the clamping wheel 12 to rise and fall via the connecting seat 10. At the same time, the second drive motor 11 can drive the clamping wheel 12 to rotate. By combining and controlling the stroke of the electric push rod 9 and the direction of the second drive motor 11, the clamping wheel 12 can move the mold on the processing table 1.

[0032] Please see Figure 4 and Figure 5The adjustment assembly 14 includes a horizontal lead screw 15 and a vertical lead screw 18. The horizontal lead screw 15 is located at the center of the inner cavity of the top plate 13, and bearing seats are rotatably connected to the ends of both the horizontal lead screw 15 and the vertical lead screw 18. A horizontal slider 17 and a vertical slider 20 are respectively fitted onto the surfaces of the horizontal lead screw 15 and the vertical lead screw 18. The vertical lead screw 18 is rotatably connected to the lower surface of the horizontal slider 17, and the fixing seat 21 is connected to the vertical slider 20. The third drive motor 16 drives the horizontal lead screw 15 to rotate, causing the horizontal slider 17 to move horizontally along the inner cavity of the top plate 13. The fourth drive motor 19 drives the vertical lead screw 18 to rotate, causing the vertical slider 20 to move vertically below the horizontal slider 17. Finally, the three-dimensional spatial positioning of the spray head 26 is achieved through the fixing seat 21. The ends of the horizontal lead screw 15 and the vertical lead screw 18 are respectively connected to the third drive motor 16 and the fourth drive motor 19, and the third drive motor 16 and the fourth drive motor 19 are respectively connected to the corresponding bearing seats through motor seats. The third drive motor 16 and the fourth drive motor 19 are independently connected to the horizontal lead screw 15 and the vertical lead screw 18 respectively through bearing housings, forming a decoupled drive system. The main control circuit board can implement speed synchronization control or position interpolation control for the two motors. The independent drive design improves the flexibility of motion control. For example, when the spray head 26 performs circular interpolation, a smooth trajectory can be achieved through differential control. At the same time, it is convenient to replace the faulty motor individually, reducing maintenance costs.

[0033] This solution involves placing the aluminum alloy die-casting mold to be coated horizontally on the upper surface of the processing table 1, starting the first drive motor 6 to drive the bidirectional lead screw 3 to rotate, and through the synchronous transmission mechanism formed by the pulley 4 and the transmission belt 5, causing the sliding plates 7 on both sides to move towards each other along the side groove 2, and through the electric push rod 9 to drive the connecting seat 10, so that the clamping wheel 12 fits against the side wall of the mold, forming a multi-point stable clamping.

[0034] The third drive motor 16 drives the horizontal lead screw 15 to rotate, causing the horizontal slider 17 to move horizontally along the inner cavity of the top plate 13 to the preset X-axis coordinate above the mold cavity. The fourth drive motor 19 drives the vertical lead screw 18 to rotate, causing the fixed seat 21 to move to the preset Y-axis coordinate above the mold cavity through the vertical slider 20, thus completing the two-dimensional planar positioning of the spray head 26.

[0035] The fifth drive motor 22 drives the fixed base 21 to rotate, which in turn drives the U-shaped base 23 and the spray head 26 to adjust the horizontal angle so that the axis of the spray head 26 is aligned with the direction of the mold cavity. The sixth drive motor 24 drives the rotating shaft 25 to rotate so that the spray head 26 can adjust the pitch angle in the vertical direction to ensure that the spray fan surface coincides with the normal direction of the mold surface.

[0036] The external liquid supply system continuously supplies release agent to the spray head 26 through the liquid guide pipe 27. The spray head 26 performs spraying operation according to the serpentine or spiral path preset by the main control circuit board. The camera 28 collects images of the cavity surface in real time. The main control circuit board detects the lubricating film coverage status through image recognition algorithm and dynamically corrects the moving speed and spraying flow parameters of the spray head 26.

[0037] After a single spraying is completed, the clamping wheel 12 moves in the opposite direction under the drive of the bidirectional lead screw 3 to release the clamping. The second drive motor 11 can drive the clamping wheel 12 to rotate on the processing table 1, moving the mold out of the spraying station. The adjustment component 14 drives the spraying head 26 to reset to the initial waiting position. The main control circuit board automatically calls the preset program according to the next mold specification parameters and enters a new round of spraying cycle.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. An apparatus for painting an aluminum alloy die casting, characterized by comprising: include: The processing table (1) and clamping wheels (12) are provided on both sides of the upper surface of the processing table (1). A top plate (13) is provided directly above the processing table (1). An adjustment component (14) is connected to the lower surface of the top plate (13). A fixed seat (21) is installed at the moving end of the adjustment component (14). A fifth drive motor (22) is installed on the top of the fixed seat (21) through a motor seat. A main control circuit board is also installed in the inner cavity of the top plate (13). A U-shaped seat (23) is provided at the bottom of the fixed seat (21), and a sixth drive motor (24) is installed on the outside of the U-shaped seat (23) through a motor seat, and a rotating shaft (25) is rotatably connected to the inner cavity of the U-shaped seat (23), and the rotating shaft (25) is coaxially connected to the sixth drive motor (24). The spray head (26) is located on the lower surface of the rotating shaft (25), and the liquid inlet end of the back of the spray head (26) is connected to the liquid guide tube (27), and cameras (28) are installed on both sides of the upper part of the spray head (26).

2. The apparatus for painting an aluminum alloy die casting according to claim 1, wherein: The processing table (1) has side grooves (2) on both sides, and a two-way lead screw (3) is rotatably connected to the inner cavity of the side groove (2), and the front end of the two-way lead screw (3) is coaxially connected to the first drive motor (6).

3. The apparatus for painting an aluminum alloy die casting according to claim 2, wherein: Each of the two-way lead screws (3) is equipped with a pulley (4) at its rear end, and a transmission belt (5) is connected between adjacent pulleys (4). Sliding plates (7) are fitted on both the front and rear of the surface of the two-way lead screw (3).

4. The apparatus according to claim 3, wherein: Side connecting seats (8) are installed on the outer side of the sliding plate (7), and an electric push rod (9) is added to the upper part of the outer side of the side connecting seat (8). A connecting seat (10) is connected to the upper part of the inner side of the side connecting seat (8). The telescopic end of the electric push rod (9) is connected to the connecting seat (10). A second drive motor (11) is installed on the top of the connecting seat (10) through a motor seat. The clamping wheel (12) is rotatably connected to the bottom of the connecting seat (10). The second drive motor (11) and the clamping wheel (12) are coaxially connected.

5. The apparatus for painting an aluminum alloy die casting according to claim 1, wherein: The adjustment assembly (14) includes a horizontal lead screw (15) and a vertical lead screw (18). The horizontal lead screw (15) is located at the center of the inner cavity of the top plate (13). Bearing seats are rotatably connected to the ends of both the horizontal lead screw (15) and the vertical lead screw (18). A horizontal slider (17) and a vertical slider (20) are respectively sleeved on the surfaces of the horizontal lead screw (15) and the vertical lead screw (18). The vertical lead screw (18) is rotatably connected to the lower surface of the horizontal slider (17). A fixed seat (21) is connected to the vertical slider (20).

6. The aluminum alloy die-casting spraying device according to claim 5, characterized in that: The ends of the horizontal lead screw (15) and the vertical lead screw (18) are respectively connected to a third drive motor (16) and a fourth drive motor (19), and the third drive motor (16) and the fourth drive motor (19) are respectively connected to the corresponding bearing seats through motor seats.