A painting device for processing frequency converter chassis

By using a multi-directional screw drive and rotating device, the problem of limited nozzle movement range was solved, enabling all-around spraying of the inverter chassis and ensuring the uniformity and precision of the spraying.

CN224271673UActive Publication Date: 2026-05-26JIANGXI RUITIAN KECEN ELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI RUITIAN KECEN ELECTRIC TECH CO LTD
Filing Date
2025-06-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing painting equipment has a limited range of motion for its spray nozzles, making it difficult to adapt to chassis of different sizes and shapes. This results in incomplete coating coverage, and the nozzle positioning is cumbersome, making it difficult to accurately control the distance between the nozzle and the chassis surface.

Method used

The system employs a multi-directional screw drive and rotation device, combined with a geared motor drive, to achieve multi-angle rotation, longitudinal, lateral, and vertical movement of the spray head, ensuring uniform and complete spraying.

Benefits of technology

It achieves seamless spraying of the chassis surface, ensuring uniform and complete paint application, simplifying nozzle positioning operations, and improving spraying efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a painting device for inverter chassis processing, relating to the field of inverter chassis manufacturing technology. The utility model includes a painting bracket, on one side of the upper surface of which a side support plate is fixedly installed and slidably connected to a horizontal plate. The output end of a first motor is fixedly connected to one end of a longitudinal lead screw. The outer surface of the longitudinal lead screw is threadedly sleeved to the lower surface of one side of the horizontal plate. A transverse support frame is fixedly installed on the upper surface of the horizontal plate. A lifting lead screw is rotatably connected inside the lifting frame. The output end of a third motor is drively connected to the upper end of the lifting lead screw. A spray head is threadedly sleeved on the outer surface of the lifting lead screw. This utility model, through the combined use of lead screw drives in three directions and a rotating device, achieves improved coverage integrity and increased spray head positioning flexibility.
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Description

Technical Field

[0001] This utility model relates to the field of inverter chassis manufacturing technology, specifically to a painting device for inverter chassis processing. Background Technology

[0002] A frequency converter chassis is a housing device used to install and protect frequency converters. The processing of a frequency converter chassis refers to the process of using a series of techniques to shape raw materials (such as metal sheets, aluminum alloys, etc.) into a chassis structure that meets design requirements, satisfying the functional needs of the frequency converter for installation, protection, heat dissipation, and electromagnetic shielding. During the processing, painting the frequency converter chassis is also an important step. The painting equipment (also known as spraying equipment) used in the processing of frequency converter chassis is a special equipment used to coat the surface of the chassis. Its main function is to improve the chassis's rust resistance, corrosion resistance, and wear resistance by spraying paint (such as powder coatings, paints, etc.), while also giving it an aesthetically pleasing appearance.

[0003] However, existing technologies still have the following problems:

[0004] Most spray painting equipment uses fixed nozzles or simple translation mechanisms, limiting the nozzle's range of motion and the coverage area. Traditional equipment employs a single nozzle positioning method, typically allowing movement only within a two-dimensional plane, making it difficult to adaptively adjust to the three-dimensional contours of the chassis. When dealing with chassis of different sizes and shapes, frequent nozzle position changes or adjustments are necessary, resulting in cumbersome and time-consuming operations. Furthermore, the distance between the nozzle and the chassis surface is difficult to control precisely; too close a distance can lead to paint runs, while too far a distance results in paint waste and insufficient coating adhesion. Utility Model Content

[0005] To address the issues of incomplete coating coverage and difficulty in flexibly positioning the spray nozzle, the purpose of this utility model is to provide a painting device for the processing of frequency converter chassis.

[0006] To solve the above technical problems, this utility model adopts the following technical solution: a painting device for processing inverter chassis, including a painting bracket, a side support plate fixedly installed on one side of the upper surface of the painting bracket and slidably connected to a horizontal plate, a rotating device fixedly installed in the middle of the side support plate, a side support frame fixedly installed on the upper surface of the side support plate, a longitudinal lead screw rotatably connected inside the side support frame, a first motor fixedly installed at the end of the side support frame, the output end of the first motor fixedly connected to one end of the longitudinal lead screw, and the outer surface of the longitudinal lead screw threaded to the lower surface of one side of the horizontal plate. The horizontal support frame is fixedly installed on the upper surface of the horizontal plate. A horizontal lead screw is rotatably connected inside the horizontal support frame. A second motor is fixedly installed at the end of the horizontal support frame. The output end of the second motor is fixedly connected to one end of the horizontal lead screw. A movable support plate is threaded onto the outer surface of the horizontal lead screw. A lifting frame is fixedly connected to one side of the movable support plate and a third motor is fixedly installed thereon. A lifting lead screw is rotatably connected inside the lifting frame. The output end of the third motor is drivenly connected to the upper end of the lifting lead screw. A nozzle is threaded onto the outer surface of the lifting lead screw.

[0007] Preferably, the rotating device includes a rotating bracket, a geared motor is fixedly installed inside the rotating bracket, a rotating plate is fixedly installed at the output end of the geared motor, and a support plate is fixedly connected to the upper surface of the rotating plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention utilizes a combination of screw drives and rotating devices in multiple directions. The rotating device uses a geared motor to drive the support plate to rotate, which, in conjunction with a rectangular slot to fix the chassis, allows for multi-angle rotation of the chassis. Simultaneously, the spray nozzle, through screw drives and motor control in three directions, achieves precise movement in the longitudinal, lateral, and vertical directions, covering the chassis surface without any blind spots and ensuring uniform and complete painting. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a partial structural diagram of the present utility model.

[0013] Figure 3This is a schematic diagram of the rotating device structure of this utility model.

[0014] In the diagram: 10. Rotating device; 11. Spraying bracket; 12. Side support plate; 13. Horizontal plate; 15. Side support frame; 16. Longitudinal lead screw; 17. First guide rod; 18. First motor; 19. Horizontal support frame; 20. Horizontal lead screw; 21. Second guide rod; 22. Second motor; 23. Moving support plate; 24. Lifting frame; 25. Lifting lead screw; 26. Third motor; 27. Synchronous pulley; 28. Synchronous belt; 30. Spray nozzle; 31. Rotating bracket; 32. Gear motor; 33. Rotating plate; 34. Support plate. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-3 As shown, this utility model provides a painting device for inverter chassis processing, including a painting bracket 11. A side support plate 12 is fixedly installed on one side of the upper surface of the painting bracket 11, and a horizontal plate 13 is slidably connected to the other side. Multiple anti-slip pads are fixedly installed on the lower surface of the painting bracket 11. The anti-slip pads increase the friction between the device and the ground, preventing the device from shifting during the painting process and ensuring stable painting operations. Two sliders are fixedly connected to the lower surface of one side of the horizontal plate 13, and a slide rail is fixedly installed on one side of the upper surface of the painting bracket 11. The lower surfaces of the two sliders are slidably engaged with the outer surface of the slide rail. This structure enables the horizontal plate 13 to slide stably on the painting bracket 11, providing a lateral foundation for the subsequent movement of the spray head 30.

[0017] A rotating device 10 is fixedly installed in the middle of the side support plate 12. The rotating device 10 includes a rotating bracket 31, in which a geared motor 32 is fixedly installed. A rotating plate 33 is fixedly installed at the output end of the geared motor 32. A support plate 34 is fixedly connected to the upper surface of the rotating plate 33. The outer surface of the support plate 34 has multiple rectangular slots arranged in a rectangular array. The geared motor 32 drives the rotating plate 33 and the support plate 34 to rotate. The rectangular slots facilitate the fixing of the frequency converter chassis, enabling multi-angle rotation of the chassis and meeting the requirements of all-round painting.

[0018] A side support frame 15 is fixedly installed on the upper surface of the side support plate 12. A first guide rod 17 is fixedly installed on one side of the side support frame 15. The first guide rod 17 passes through one side of the horizontal plate 13 and slides against the inner wall of one side of the horizontal plate 13. A longitudinal lead screw 16 is rotatably connected inside the side support frame 15. A first motor 18 is fixedly installed at the end of the side support frame 15. The output end of the first motor 18 is fixedly connected to one end of the longitudinal lead screw 16. The outer surface of the longitudinal lead screw 16 is threadedly sleeved with the lower surface of one side of the horizontal plate 13. The first motor 18 drives the longitudinal lead screw 16 to rotate. Through threaded transmission, the horizontal plate 13 moves longitudinally along the first guide rod 17, thereby adjusting the longitudinal position of the nozzle 30 and covering different height areas of the machine housing.

[0019] A transverse support frame 19 is fixedly installed on the upper surface of the horizontal plate 13. A second guide rod 21 is fixedly installed on one side of the transverse support frame 19. The second guide rod 21 passes through one side of the movable support plate 23 and slides against the inner wall of one side of the movable support plate 23. A transverse lead screw 20 is rotatably connected inside the transverse support frame 19. A second motor 22 is fixedly installed at the end of the transverse support frame 19. The output end of the second motor 22 is fixedly connected to one end of the transverse lead screw 20. The movable support plate 23 is threaded onto the outer surface of the transverse lead screw 20. The second motor 22 drives the transverse lead screw 20 to rotate, causing the movable support plate 23 to move laterally along the second guide rod 21, further adjusting the transverse position of the nozzle 30.

[0020] A lifting frame 24 is fixedly connected to one side of the movable support plate 23, and a third motor 26 is fixedly installed thereon. The output end of the third motor 26 and one end of the lifting screw 25 are both fixedly sleeved with synchronous pulleys 27. The outer surfaces of the two synchronous pulleys 27 are jointly sleeved with a synchronous belt 28. The lifting screw 25 is rotatably connected inside the lifting frame 24. The nozzle 30 is threaded onto the outer surface of the lifting screw 25. The third motor 26 drives the lifting screw 25 to rotate through the synchronous pulleys 27 and the synchronous belt 28, so as to realize the vertical movement of the nozzle 30 and precisely control the distance between the nozzle 30 and the machine box.

[0021] Working principle: The inverter chassis is placed on the support plate 34 of the rotating device 10. The geared motor 32 inside the rotating bracket 31 works, and the output end drives the rotating plate 33, thereby causing the support plate 34 to rotate, realizing the chassis to rotate at multiple angles so as to spray paint from all directions.

[0022] When the longitudinal position of the nozzle 30 needs to be adjusted, the first motor 18 starts, and its output shaft drives the longitudinal lead screw 16 to rotate in the side support frame 15. Since the longitudinal lead screw 16 is threadedly connected to the horizontal plate 13, the horizontal plate 13 moves longitudinally along the slide rail on the first guide rod 17 and the spray bracket 11, driving the subsequent components and the nozzle 30 to move longitudinally.

[0023] To change the lateral position of the nozzle 30, the second motor 22 is turned on, driving the lateral lead screw 20 to rotate within the lateral support frame 19. The movable support plate 23, which is threadedly connected to the lateral lead screw 20, moves laterally in a straight line along the second guide rod 21, thereby adjusting the lateral position of the nozzle 30.

[0024] When the vertical height of the nozzle 30 needs to be adjusted, the third motor 26 operates, and through the synchronous pulley 27 and synchronous belt 28, it drives the lifting screw 25 to rotate inside the lifting frame 24. The nozzle 30, which is threadedly connected to the lifting screw 25, makes a vertical linear movement to meet the painting needs at different heights.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A painting device for processing inverter chassis, comprising a painting bracket (11), characterized in that: A side support plate (12) is fixedly installed on one side of the upper surface of the spraying bracket (11) and a horizontal plate (13) is slidably connected thereto. A rotating device (10) is fixedly installed in the middle of the side support plate (12). A side support frame (15) is fixedly installed on the upper surface of the side support plate (12). A longitudinal lead screw (16) is rotatably connected inside the side support frame (15). A first motor (18) is fixedly installed at the end of the side support frame (15). The output end of the first motor (18) is fixedly connected to one end of the longitudinal lead screw (16). The outer surface of the longitudinal lead screw (16) is threadedly sleeved with the lower surface of one side of the horizontal plate (13). A transverse support frame (19) is fixedly installed on the upper surface of the horizontal plate (13). The transverse support frame (19) is rotatably connected to a transverse lead screw (20). A second motor (22) is fixedly installed at the end of the transverse support frame (19). The output end of the second motor (22) is fixedly connected to one end of the transverse lead screw (20). A movable support plate (23) is threaded onto the outer surface of the transverse lead screw (20). A lifting frame (24) is fixedly connected to one side of the movable support plate (23) and a third motor (26) is fixedly installed thereon. A lifting lead screw (25) is rotatably connected inside the lifting frame (24). The output end of the third motor (26) is drivenly connected to the upper end of the lifting lead screw (25). A nozzle (30) is threaded onto the outer surface of the lifting lead screw (25).

2. The painting device for inverter chassis processing as described in claim 1, characterized in that, The rotating device (10) includes a rotating bracket (31), a geared motor (32) is fixedly installed inside the rotating bracket (31), a rotating plate (33) is fixedly installed at the output end of the geared motor (32), and a support plate (34) is fixedly connected to the upper surface of the rotating plate (33).

3. The painting device for inverter chassis processing as described in claim 1, characterized in that, The output end of the third motor (26) and one end of the lifting screw (25) are both fixedly sleeved with synchronous pulleys (27), and the outer surfaces of the two synchronous pulleys (27) are sleeved with a synchronous belt (28).

4. The painting device for inverter chassis processing as described in claim 1, characterized in that, Two sliders are fixedly connected to one side of the lower surface of the horizontal plate (13), and a slide rail is fixedly installed on one side of the upper surface of the spraying bracket (11). The lower surfaces of the two sliders are slidably sleeved with the outer surface of the slide rail.

5. The painting device for inverter chassis processing as described in claim 1, characterized in that, A first guide rod (17) is fixedly installed on one side of the side support frame (15). The first guide rod (17) passes through one side of the horizontal plate (13) and slides against the inner wall of one side of the horizontal plate (13).

6. The painting device for inverter chassis processing as described in claim 1, characterized in that, A second guide rod (21) is fixedly installed on one side of the transverse support frame (19). The second guide rod (21) passes through one side of the movable support plate (23) and slides against the inner wall of one side of the movable support plate (23).

7. The painting device for inverter chassis processing as described in claim 2, characterized in that, The outer surface of the support plate (34) is provided with multiple rectangular grooves, and the multiple rectangular grooves are distributed in a rectangular array.

8. The painting device for inverter chassis processing as described in claim 1, characterized in that, Multiple anti-slip pads are fixedly installed on the lower surface of the spraying bracket (11).