A body electrophoresis exhaust tool
By designing an electrophoretic exhaust fixture for car bodies, and utilizing a combination of U-shaped exhaust pipes and threaded pipes, the problem of air residue caused by poor exhaust in traditional fixtures was solved. This enabled efficient exhaust of air from inside the car body and uniform filling of the electrophoretic liquid, thereby improving coating quality and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SMART MACHINERY EQUIPMENT (DALIAN) CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-12
Smart Images

Figure CN224350791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exhaust tooling technology, specifically to a vehicle body electrophoresis exhaust tooling. Background Technology
[0002] Electrophoretic coating, as an advanced surface treatment technology, operates by using an external electric field to drive the directional migration of fine substances such as pigment and resin particles suspended in the electrophoretic solution, ultimately depositing them precisely onto the surface of the substrate material, one of the electrodes, to form a uniform and dense coating. The rudimentary principle of this innovative coating technology can be traced back to the late 1930s; however, the leap from theoretical conception to practical industrial application was only realized after 1963. After nearly three decades of technological iteration and process optimization, electrophoretic coating has developed into a unique film preparation technology, demonstrating unparalleled advantages and practical value, especially in the application of water-based coatings. It deeply aligns with modern industry's pursuit of environmental protection, efficiency, and intelligence. Not only does it possess excellent water solubility, effectively reducing the use and emission of organic solvents, but its non-toxic and harmless properties also provide operators with a safer and healthier working environment. Based on these significant advantages, electrophoretic coating technology has rapidly gained widespread application and high recognition in many industries such as automobile manufacturing, building materials, hardware processing, and home appliances, becoming an important force driving the green and intelligent transformation of related industries.
[0003] In current automotive manufacturing practices, many automakers adopt a strategy of sharing production facilities to effectively control costs and improve resource utilization efficiency. For example, in the electrophoretic coating process, different types of vehicles, such as buses, commercial vehicles, and sedans, share the same electrophoretic coating pool. However, due to significant differences in the body structure design of various vehicle models, when the body is immersed in the electrophoretic coating solution, as the body continues to sink, air trapping areas easily form between its internal structure and the electrophoretic solution, accumulating into a relatively closed cavity. As the body gradually submerges in the electrophoretic solution, the air in this closed cavity cannot escape in time through natural channels. As the electrophoretic solution level continues to rise and envelop the body, the air space enclosed by the top cover area is continuously compressed, and the internal air pressure increases sharply as the volume decreases. When the air pressure reaches a critical value, the electrophoretic fluid is unable to penetrate further into the interior of the top cover sheet metal structure due to the obstruction of the high-pressure air mass. This results in a blind spot for the electrophoretic coating in this area. Traditional single-point exhaust methods cannot cover all air-retention areas, leading to insufficient electrophoretic fluid filling. This causes: the formation of tiny bubbles in the air-retention areas, which solidify into pores, increasing the risk of corrosion. It also causes the flow of the electrophoretic fluid to be obstructed, resulting in uneven coating thickness. Therefore, it is necessary to design a vehicle body electrophoretic exhaust fixture. Utility Model Content
[0004] The purpose of this utility model is to provide a car body electrophoresis exhaust fixture, which solves the technical problem that the traditional fixture causes air residue inside the car body due to poor exhaust, and the electrophoresis liquid cannot completely fill the complex structure, thereby achieving the purpose of improving exhaust stability.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vehicle body electrophoresis exhaust fixture, comprising an electrophoresis pool, wherein an installation groove is provided on the outer wall of the electrophoresis pool, and an observation window is fixedly installed inside the installation groove, and a vehicle body is disposed inside the electrophoresis pool; an exhaust assembly, wherein the exhaust assembly is disposed inside and at the top of the electrophoresis pool; the exhaust assembly includes: an exhaust part, wherein the exhaust part is disposed inside the electrophoresis pool; and an installation part, wherein the installation part is disposed inside and at the top of the electrophoresis pool, and is disposed above and to one side of the exhaust part.
[0006] Preferably, the exhaust part includes: an exhaust fixing box, which is fixedly installed on the bottom of the inner wall of the electric swimming pool; the top of the exhaust fixing box is provided with a threaded hole, and the inside of the threaded hole is provided with a threaded tube by a threaded connection, and there are two sets of threaded tubes arranged symmetrically, and the top of the threaded tube is connected to a U-shaped exhaust pipe.
[0007] Preferably, the outer wall of the U-shaped exhaust pipe is fixedly equipped with two sets of fixing rings arranged symmetrically. A support rod is fixedly installed on the top of the fixing ring, and an installation ring is fixedly installed on the other end of the support rod, with the installation ring positioned above the U-shaped exhaust pipe.
[0008] Preferably, a connecting telescopic tube is fixedly installed on the inner wall of the mounting ring, and the other end of the connecting telescopic tube is connected to the top of the U-shaped exhaust pipe. A connecting spherical head is connected inside the mounting ring, and the bottom of the connecting spherical head is connected to the top of the connecting telescopic tube.
[0009] Preferably, the outer wall of the connecting spherical head is provided with an air inlet pipe at equal intervals, the outer wall of the air inlet pipe is fitted with a sealing ring, and the interior of the exhaust fixing box is provided with an exhaust chamber, which is connected to the bottom of the threaded pipe.
[0010] Preferably, the installation part includes: a support frame plate, which is fixedly installed on the top of the electric pool; an exhaust hole, which is evenly spaced on the outer wall of the exhaust fixing box; an embedding groove is evenly spaced on the top of the support frame plate, and a slot is formed on the inner wall of the embedding groove, with two slots forming a group; and a support block is provided inside the embedding groove and the slot by snap-fit.
[0011] Preferably, a pull handle is fixedly installed on the top of the support block, a pipe perforation is opened on the outer wall of the support block, a sealing ring is fixedly installed on the outer wall of the vent hole, an vent pipe is connected inside the vent hole and the vent pipe is located inside the sealing ring, and the other end of the vent pipe passes through the pipe perforation and extends to the outside of the electric pool.
[0012] This utility model provides a vehicle body electrophoresis exhaust fixture. It has the following beneficial effects:
[0013] (1) This utility model expands the exhaust coverage area by setting a U-shaped exhaust pipe and a threaded pipe, improves the efficiency of air exhaust inside the vehicle body, effectively avoids local bubble residue caused by poor exhaust on one side and effectively avoids blind spots filled by electrophoretic liquid, reduces the defect rate of pinholes and flow marks, and achieves tight fit between the exhaust port of the vehicle body and the tooling by combining the double sealing ring of the intake pipe and the exhaust port, extending the sealing life. At the same time, the exhaust chamber of the exhaust fixing box serves as a buffer chamber to avoid exhaust interruption caused by fluctuation of the electrophoretic pool liquid level or sudden change of exhaust pressure, thereby improving the exhaust stability and product quality.
[0014] (2) By setting the embedded groove and slot of the support frame plate, the position of the support block can be quickly adjusted to adapt to the exhaust pipe direction of different models. It can also be used in conjunction with the pipe perforation and exhaust pipe to avoid interference between the tooling and other parts on the top of the electric pool. At the same time, the sealing ring is made of fluororubber, thereby reducing the annual replacement frequency, reducing maintenance costs, and achieving the effect of easy replacement and safe maintenance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is an internal view of the structure of a car body electrophoretic exhaust fixture according to the present invention;
[0017] Figure 3 This is an exploded view of the exhaust section structure of a car body electrophoresis exhaust fixture according to this utility model;
[0018] Figure 4 This is a side view of the structure of the vehicle body electrophoresis exhaust installation point according to the present invention.
[0019] In the diagram: 1. Electric swimming pool; 2. Observation window; 3. Body body; 4. Exhaust assembly; 41. Exhaust part; 411. Exhaust mounting box; 412. Threaded hole; 413. Threaded pipe; 414. U-shaped exhaust pipe; 415. Fixing ring; 416. Support rod bracket; 417. Mounting ring; 418. Connecting telescopic pipe; 419. Connecting ball head; 4110. Intake pipe; 4111. Exhaust chamber; 42. Mounting part; 421. Support plate; 422. Embedded groove; 423. Slot; 424. Support block; 425. Pull handle; 426. Pipe perforation; 427. Exhaust hole; 428. Sealing ring; 429. Exhaust pipe. Detailed Implementation
[0020] 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.
[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example
[0022] Addressing the problem of traditional tooling failing to properly exhaust air, resulting in residual air inside the vehicle body and incomplete filling of complex structures by the electrophoretic coating fluid, this invention provides a preferred embodiment of a vehicle body electrophoretic exhaust tooling, for example... Figure 1-4 As shown: A vehicle body electrophoresis exhaust fixture includes an electrophoresis pool 1, an installation groove is provided on the outer wall of the electrophoresis pool 1, and an observation window 2 is fixedly installed inside the installation groove. The vehicle body 3 is disposed inside the electrophoresis pool 1. Exhaust assembly 4 is disposed inside and on top of the electrophoresis pool 1. The exhaust assembly 4 includes: an exhaust part 41, which is disposed inside the electrophoresis pool 1; and an installation part 42, which is disposed inside and on top of the electrophoresis pool 1, and is disposed above and on one side of the exhaust part 41.
[0023] The exhaust part 41 includes: an exhaust fixing box 411, which is fixedly installed on the bottom of the inner wall of the electric pool 1; the top of the exhaust fixing box 411 is provided with a threaded hole 412, and the inside of the threaded hole 412 is provided with a threaded tube 413 by threaded connection, and there are two sets in total, which are symmetrically arranged. The top of the threaded tube 413 is connected to a U-shaped exhaust pipe 414.
[0024] The outer wall of the U-shaped exhaust pipe 414 is fixedly installed with two sets of fixing rings 415 arranged symmetrically. A support rod 416 is fixedly installed on the top of the fixing ring 415, and an installation ring 417 is fixedly installed on the other end of the support rod 416. The installation ring 417 is located above the U-shaped exhaust pipe 414.
[0025] A connecting telescopic tube 418 is fixedly installed on the inner wall of the mounting ring 417, and the other end of the connecting telescopic tube 418 is connected to the top of the U-shaped exhaust pipe 414. A connecting ball head 419 is connected inside the mounting ring 417, and the bottom of the connecting ball head 419 is connected to the top of the connecting telescopic tube 418.
[0026] An air inlet pipe 4110 is provided equidistantly on the outer circumference of the connecting spherical head 419. A sealing ring is fitted on the outer wall of the air inlet pipe 4110. An exhaust chamber 4111 is provided inside the exhaust fixing box 411, and the exhaust chamber 4111 is connected to the bottom of the threaded pipe 413.
[0027] Furthermore, this embodiment expands the exhaust coverage area by providing a U-shaped exhaust pipe 414 and a threaded pipe 413, thereby improving the efficiency of air exhaust from the vehicle body. This effectively avoids localized air bubble residue caused by poor exhaust on one side and effectively avoids blind spots filled by electrophoretic liquid, reducing the rate of pinhole and flow mark defects. Combined with the double sealing ring 428 of the intake pipe 4110 and the exhaust hole 427, a tight fit is achieved between the vehicle body exhaust hole and the tooling, extending the sealing life. At the same time, the exhaust chamber 4111 of the exhaust fixing box 411 serves as a buffer chamber to prevent exhaust interruption caused by fluctuations in the liquid level of the electrophoretic pool 1 or sudden changes in exhaust pressure. Example
[0028] Please see Figures 1-4 Furthermore, based on Embodiment 1, the following is further obtained: the installation part 42 includes: a support frame plate 421, which is fixedly installed on the top of the electric pool 1; an exhaust hole 427, which is evenly and equidistantly opened on the outer wall of the exhaust fixing box 411; an embedding groove 422 is evenly and equidistantly opened on the top of the support frame plate 421, and a slot 423 is opened on the inner wall of the embedding groove 422, and two slots are set together; a support block 424 is provided inside the embedding groove 422 and the slot 423 by snap-fit.
[0029] A pull handle 425 is fixedly installed on the top of the support block 424. A pipe through hole 426 is opened on the outer wall of the support block 424. A sealing ring 428 is fixedly installed on the outer wall of the vent hole 427. An vent pipe 429 is connected inside the vent hole 427 and is located inside the sealing ring 428. The other end of the vent pipe 429 passes through the pipe through hole 426 and extends to the outside of the electric pool 1.
[0030] Furthermore, in this embodiment, by providing the embedding groove 422 and the slot 423 of the support frame plate 421, the position of the support block 424 can be quickly adjusted to adapt to the exhaust pipe 429 of different vehicle models. In conjunction with the pipe perforation 426 and the exhaust pipe 429, interference between the tooling and other components on the top of the electric pool 1 is avoided. At the same time, the sealing ring 428 is made of fluororubber, thereby reducing the annual replacement frequency and reducing maintenance costs.
[0031] In use, firstly, the vehicle body 3 is placed inside the electric pool 1. Next, the support block 424 is snapped onto the support plate 421 via the embedding groove 422 and the locking groove 423 on the support plate 421 of the mounting part 42. The pipe through hole 426 on the support block 424 is used to pass through the exhaust pipe 429. One end of the exhaust pipe 429 communicates with the exhaust hole 427 on the exhaust fixing box 411 and is located inside the sealing ring 428, while the other end extends to the outside of the electric pool 1.
[0032] Furthermore, the exhaust mounting box 411 of the exhaust section 41 is fixedly installed on the bottom of the inner wall of the electric pool 1. Two sets of U-shaped exhaust pipes 414 are symmetrically installed on the top of the exhaust mounting box 411 via a threaded connection between the threaded hole 412 and the threaded tube 413. The fixing ring 415 on the outer wall of the U-shaped exhaust pipe 414 supports the mounting ring 417 via a support rod bracket 416, and the mounting ring 417 is positioned above the U-shaped exhaust pipe 414. One end of the connecting telescopic tube 418 on the inner wall of the mounting ring 417 is connected to the top of the U-shaped exhaust pipe 414, and the other end is connected to the connecting ball head 419. The intake pipe 4110, circumferentially connected to the outer wall of the connecting ball head 419, is used to insert into the exhaust port of the vehicle body 3, and a sealing ring fitted on the outer wall of the intake pipe 4110 ensures a tight seal.
[0033] Furthermore, electrophoretic fluid is injected into the electrophoretic pool 1 until the liquid level reaches a predetermined height, completely immersing the vehicle body 3 in the electrophoretic fluid. Power is then switched on, and charged paint particles in the electrophoretic fluid migrate and deposit onto the surface of the vehicle body 3 under the influence of the electric field. Simultaneously, air inside the vehicle body 3 enters the connecting ball head 419 through the air intake pipe 4110, then passes through the connecting telescopic pipe 418 into the U-shaped exhaust pipe 414. The air rises within the U-shaped exhaust pipe 414, enters the exhaust chamber 4111 inside the exhaust fixing box 411 through the threaded pipe 413, and finally exits to the outside of the electrophoretic pool 1 through the exhaust pipe 429.
[0034] Through the observation window 2 on the outer wall of the electrophoretic coating pool 1, the internal conditions of the pool 1 can be observed in real time, including the level of the electrophoretic solution and the coating status of the vehicle body 3. The working status of the exhaust assembly 4 is monitored to ensure smooth exhaust and no leakage. After the electrophoretic coating is completed, the power is disconnected, and the electrophoretic solution in the pool 1 is drained. The exhaust assembly 4 is disassembled, first disconnecting the connecting ball head 419 and the intake pipe 4110, then disassembling the U-shaped exhaust pipe 414 and the threaded pipe 413. The support block 424 is removed from the support frame plate 421, and the exhaust pipe 429 is taken out. The vehicle body 3 is then removed for subsequent cleaning, drying, and other processing steps.
[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A vehicle body electrophoresis exhaust fixture, comprising an electrophoresis pool (1), characterized in that: The outer wall of the electric pool (1) is provided with an installation groove, and an observation window (2) is fixedly installed inside the installation groove. The electric pool (1) is provided with a vehicle body (3). An exhaust assembly (4) is disposed inside and on top of the electric pool (1); The exhaust assembly (4) includes: An exhaust vent (41) is provided inside the electric pool (1); The mounting part (42) is located inside and on top of the electric pool (1), and is located above and on one side of the exhaust part (41).
2. The vehicle body electrophoresis exhaust fixture according to claim 1, characterized in that: The exhaust section (41) includes: An exhaust fixing box (411) is fixedly installed on the bottom of the inner wall of the electric swimming pool (1); The top of the exhaust fixing box (411) is provided with a threaded hole (412), and the inside of the threaded hole (412) is provided with a threaded tube (413) by threaded connection. There are two sets in total, which are arranged symmetrically. The top of the threaded tube (413) is connected to a U-shaped exhaust pipe (414).
3. The vehicle body electrophoresis exhaust fixture according to claim 2, characterized in that: The outer wall of the U-shaped exhaust pipe (414) is fixedly installed with two sets of fixing rings (415) arranged symmetrically. The top of the fixing ring (415) is fixedly installed with a support rod (416), and the other end of the support rod (416) is fixedly installed with an installation ring (417). The installation ring (417) is located above the U-shaped exhaust pipe (414).
4. The vehicle body electrophoresis exhaust fixture according to claim 3, characterized in that: The inner wall of the mounting ring (417) is fixedly installed with a connecting telescopic pipe (418), and the other end of the connecting telescopic pipe (418) is connected to the top of the U-shaped exhaust pipe (414). The inside of the mounting ring (417) is connected with a connecting ball head (419), and the bottom of the connecting ball head (419) is connected to the top of the connecting telescopic pipe (418).
5. The vehicle body electrophoresis exhaust fixture according to claim 4, characterized in that: The outer wall of the connecting spherical head (419) is equidistantly connected with an air inlet pipe (4110). The outer wall of the air inlet pipe (4110) is fitted with a sealing ring. The exhaust fixing box (411) has an exhaust chamber (4111) inside, and the exhaust chamber (4111) is connected to the bottom of the threaded pipe (413).
6. The vehicle body electrophoresis exhaust fixture according to claim 1, characterized in that: The mounting portion (42) includes: A support frame plate (421) is fixedly installed on the top of the electric swimming pool (1); Vent holes (427) are evenly spaced on the outer wall of the vent fixing box (411); The top of the support frame plate (421) is provided with equally spaced and uniformly spaced embedding grooves (422), and the inner wall of the embedding groove (422) is provided with a slot (423), and two slots are provided as a group. The interior of the embedding groove (422) and the slot (423) are provided with a support block (424) by snap-fit.
7. The vehicle body electrophoresis exhaust fixture according to claim 6, characterized in that: The top of the support block (424) is fixedly equipped with a pull handle (425). The outer wall of the support block (424) is provided with a pipe perforation (426). The outer wall of the exhaust hole (427) is fixedly equipped with a sealing ring (428). An exhaust pipe (429) is provided inside the exhaust hole (427), and the exhaust pipe (429) is located inside the sealing ring (428). The other end of the exhaust pipe (429) passes through the pipe perforation (426) and extends to the outside of the electric pool (1).