Micro-arc oxidation electrolysis equipment with automatic liquid supplementing function

By introducing a temperature control and automatic electrolyte replenishment mechanism into the micro-arc oxidation electrolysis equipment, the problems of electrolyte temperature rise and concentration drop were solved, realizing automated management of electrolyte and improving membrane quality and production efficiency.

CN224062931UActive Publication Date: 2026-03-31ANHUI XINTU ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

During the micro-arc oxidation process, the increased electrolyte temperature affects the quality of the film, and the decrease in electrolyte concentration requires frequent manual replenishment, which is cumbersome.

Method used

The design incorporates a micro-arc oxidation electrolysis device with temperature control and an automatic electrolyte replenishment mechanism. The device uses a stirring motor to drive a bevel gear system to achieve electrolyte stirring and temperature control, and the automatic electrolyte replenishment mechanism to periodically and quantitatively replenish the electrolyte.

Benefits of technology

It achieves effective control of electrolyte temperature and automatic electrolyte replenishment, simplifies the operation process, and improves the quality and production efficiency of micro-arc oxidation film.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of micro-arc oxidation, and particularly relates to micro-arc oxidation electrolysis equipment with an automatic liquid supplementing function, which comprises an electrolysis tank, a temperature control mechanism and an automatic liquid supplementing mechanism. The temperature sensor sends an electric signal to the control panel, the control panel controls the refrigeration piece to work to absorb heat on the outer side of the electrolysis tank, heat dissipation is conducted through the side, away from the electrolysis tank, of the refrigeration piece, and therefore the cooling effect is achieved; when the liquid inlet groove of the spherical pipe begins to communicate with the interiors of the first liquid inlet pipe and the second liquid inlet pipe, electrolyte in the liquid containing box enters the electrolysis tank through the second liquid inlet pipe, the liquid inlet groove, the first liquid inlet pipe and the feeding port, and the liquid inlet groove is just completely covered by the inner wall of the spherical pipe when the electrolyte is supplemented; and the ball body continuously rotates, so that liquid can be regularly, quantitatively and automatically supplemented into the electrolysis tank.
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Description

Technical Field

[0001] This invention belongs to the field of micro-arc oxidation technology, specifically relating to a micro-arc oxidation electrolysis device with automatic liquid replenishment. Background Technology

[0002] Micro-arc oxidation mainly relies on the matching and adjustment of electrolyte and electrical parameters. Under the instantaneous high temperature and high pressure generated by arc discharge, a modified ceramic coating with the main body metal oxide and supplemented by electrolyte components is grown on the surface of valve metals such as aluminum, magnesium, and titanium and their alloys. The micro-arc oxidation film layer is firmly bonded to the substrate, has a dense structure, high toughness, and has good wear resistance, corrosion resistance, high temperature impact resistance and electrical insulation properties.

[0003] During the micro-arc oxidation process, the electrolyte temperature rises. Excessive electrolyte temperature affects the quality of the micro-arc oxidation film, so the electrolyte temperature needs to be controlled in a timely manner. As the micro-arc oxidation process continues, the electrolyte concentration gradually decreases, requiring workers to frequently replenish the electrolyte in the electrolytic cell, making the operation process quite cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a micro-arc oxidation electrolysis device with automatic electrolyte replenishment. This device solves the problems in the existing technology where the electrolyte temperature rises during the micro-arc oxidation process, which affects the quality of the micro-arc oxidation film and requires timely temperature control. Furthermore, as the micro-arc oxidation process progresses, the electrolyte concentration gradually decreases, requiring frequent replenishment of electrolyte by workers, resulting in a cumbersome operation process.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A micro-arc oxidation electrolysis device with automatic liquid replenishment includes:

[0007] An electrolytic vessel, with a liquid-holding tank located on top of the electrolytic vessel;

[0008] A temperature control mechanism is provided both inside and outside the electrolytic tank, and the temperature control mechanism is used to reduce the temperature of the electrolyte inside the electrolytic tank.

[0009] An automatic electrolyte replenishment mechanism is installed at the top of the electrolysis tank and is used to automatically replenish electrolyte into the electrolysis tank.

[0010] In a preferred embodiment, a control panel is fixedly installed on the outer surface of the electrolytic tank, multiple support columns are fixedly installed on the bottom surface of the electrolytic tank, and a feed inlet and a discharge outlet are respectively provided on the top and bottom surfaces of the electrolytic tank. A discharge pipe is connected to the bottom surface of the electrolytic tank through the discharge outlet, and a valve is installed on the discharge pipe.

[0011] In a preferred embodiment, the temperature control mechanism includes a stirring motor, a first bevel gear, a second bevel gear, a rotating shaft, stirring blades, a temperature sensor, and cooling elements. The stirring motor is fixedly installed on the top surface of the electrolytic tank. The first bevel gear is fixedly installed at the output end of the stirring motor. The second bevel gear meshes with the outer side of the first bevel gear. The rotating shaft is fixedly installed on the bottom surface of the second bevel gear. Multiple stirring blades are fixedly installed on the outer side of the rotating shaft. The temperature sensor is fixedly installed on the top surface inside the electrolytic tank, and multiple cooling elements are fixedly installed on the outer side of the electrolytic tank.

[0012] In a preferred embodiment, the bottom surface of the second bevel gear is rotatably connected to the top surface of the electrolysis tank, the rotating shaft passes through the electrolysis tank to the inside of the electrolysis tank and is rotatably connected to the electrolysis tank through a sealed bearing, and the control panel is electrically connected to the stirring motor, temperature sensor and cooling chip respectively through wires.

[0013] In a preferred embodiment, the automatic liquid replenishment mechanism includes a third bevel gear, a rotating rod, a fixed plate, a ball, a liquid inlet groove, a first liquid inlet pipe, a spherical tube, and a second liquid inlet pipe. The third bevel gear meshes with the outer side of the second bevel gear. A rotating rod is fixedly mounted on the side of the third bevel gear. A fixed plate is fixedly mounted on the top surface of the electrolytic tank. A ball is fixedly mounted at the end of the rotating rod away from the third bevel gear. A liquid inlet groove is provided through the outer side of the ball. The top surface of the electrolytic tank is connected to the first liquid inlet pipe through a feed port. A spherical tube is connected to the top of the first liquid inlet pipe. The top of the spherical tube is connected to the second liquid inlet pipe.

[0014] In a preferred embodiment, the side of the third bevel gear is rotatably connected to the fixed plate, the rotating rod passes through the fixed plate and is rotatably connected to the fixed plate, the inside of the spherical tube is provided with a spherical groove adapted to the sphere, the sphere is rotatably connected to the spherical tube through the spherical groove, and the top of the second liquid inlet pipe is connected to the liquid holding tank.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This invention features a temperature control mechanism that controls the stirring motor to rotate the first bevel gear, which in turn drives the second bevel gear, thereby rotating the shaft and stirring blades. This accelerates heat exchange in the electrolyte inside the electrolytic tank, preventing excessive local temperature differences. When the temperature sensor detects that the electrolyte temperature inside the electrolytic tank is too high, it sends an electrical signal to the control panel. The control panel then controls the cooling element to absorb heat from the outside of the electrolytic tank and dissipate heat through the side of the cooling element away from the tank. This accelerates heat exchange between the electrolyte inside the tank and the external environment, achieving a cooling effect.

[0017] This invention features an automatic electrolyte replenishment mechanism. Electrolyte is injected into the tank to be replenished. When the stirring blade rotates to agitate the electrolyte inside the electrolysis tank, the second bevel gear rotates, simultaneously driving the third bevel gear to rotate slowly. The rotation of the third bevel gear drives the rotating rod and the ball to rotate. When the inlet groove of the ball begins to connect with the first and second inlet pipes, the electrolyte inside the tank enters the electrolysis tank through the second inlet pipe, the inlet groove, the first inlet pipe, and the feed inlet. When the electrolyte replenishment is complete, the inlet groove is completely covered by the inner wall of the spherical tube. The continuous rotation of the ball enables periodic and quantitative automatic replenishment of electrolyte into the electrolysis tank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the main structure of this utility model;

[0020] Figure 3 This is a utility model Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the sphere and the liquid inlet tank of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 100. Electrolytic tank; 101. Control panel;

[0024] 200. Temperature control mechanism; 201. Stirring motor; 202. First bevel gear; 203. Second bevel gear; 204. Rotating shaft; 205. Stirring blade; 206. Temperature sensor; 207. Cooling element;

[0025] 300. Liquid container;

[0026] 400. Automatic liquid replenishment mechanism; 401. Third bevel gear; 402. Rotating rod; 403. Fixing plate; 404. Ball; 405. Liquid inlet tank; 406. First liquid inlet pipe; 407. Spherical tube; 408. Second liquid inlet pipe. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Please see the appendix Figure 1 As shown, this utility model provides a micro-arc oxidation electrolysis device with automatic liquid replenishment, including: an electrolysis tank 100, a temperature control mechanism 200 and an automatic liquid replenishment mechanism 400, and a liquid holding tank 300 is provided above the electrolysis tank 100.

[0032] In a preferred embodiment, please refer to Figures 1 to 2 A control panel 101 is fixedly installed on the outer surface of the electrolytic tank 100. Multiple support columns are fixedly installed on the bottom surface of the electrolytic tank 100. The top and bottom surfaces of the electrolytic tank 100 are respectively provided with a feed inlet and a discharge outlet. The bottom surface of the electrolytic tank 100 is connected to a discharge pipe through the discharge outlet. A valve is installed on the discharge pipe. A top cover is provided on the top of the electrolytic tank 100. The top cover is fixedly connected to the electrolytic tank 100 by bolts. The positive and negative terminals of an external power supply are connected to the electrolytic tank 100 through wires. The top cover is opened, the electrolyte and the workpiece to be micro-arc oxidized are put into the electrolytic tank 100, and then the top cover is closed. Discharging the workpiece with an external arc discharge device can form a film on the surface of the workpiece.

[0033] In a preferred embodiment, please refer to Figures 1 to 3A temperature control mechanism 200 is provided inside and outside the electrolytic tank 100. The temperature control mechanism 200 consists of a stirring motor 201, a first bevel gear 202, a second bevel gear 203, a rotating shaft 204, stirring blades 205, a temperature sensor 206, and cooling plates 207. The stirring motor 201 is fixedly installed on the top surface of the electrolytic tank 100. The first bevel gear 202 is fixedly installed at the output end of the stirring motor 201. The second bevel gear 203 meshes with the outer side of the first bevel gear 202. The rotating shaft 204 is fixedly installed on the bottom surface of the second bevel gear 203. Multiple stirring blades 205 are fixedly installed on the outer side of the rotating shaft 204. The stirring blades 205 are located inside the electrolytic tank 100. The temperature sensor 206 is fixedly installed on the top surface inside the electrolytic tank 100. Multiple cooling plates 207 are fixedly installed on the outer side of the electrolytic tank 100.

[0034] In this embodiment, the bottom surface of the second bevel gear 203 is rotatably connected to the top surface of the electrolysis tank 100, the rotating shaft 204 passes through the electrolysis tank 100 to the inside of the electrolysis tank 100 and is rotatably connected to the electrolysis tank 100 through a sealed bearing, and the control panel 101 is electrically connected to the stirring motor 201, the temperature sensor 206 and the cooling chip 207 respectively through wires. The cooling chip 207 is a patch with two sides, one side absorbing heat and the other side dissipating heat, which plays a role in heat conduction and does not generate cold itself.

[0035] In this embodiment, controlling the stirring motor 201 to drive the first bevel gear 202 to rotate can drive the second bevel gear 203 to rotate, thereby driving the rotating shaft 204 and the stirring blade 205 to rotate. The rotation of the stirring blade 205 stirs the electrolyte inside the electrolytic tank 100, accelerating the heat exchange of the electrolyte inside the electrolytic tank 100 and avoiding excessive local temperature differences in the electrolyte. When the temperature sensor 206 detects that the temperature of the electrolyte inside the electrolytic tank 100 is too high, the temperature sensor 206 sends an electrical signal to the control panel 101. The control panel 101 controls the cooling chip 207 to work to absorb heat from the outside of the electrolytic tank 100 and dissipate heat through the side of the cooling chip 207 away from the electrolytic tank 100, thereby accelerating the heat exchange between the electrolyte inside the electrolytic tank 100 and the external environment, achieving a cooling effect.

[0036] In a preferred embodiment, please refer to Figures 1 to 4An automatic liquid replenishment mechanism 400 is provided on the top of the electrolytic tank 100. The automatic liquid replenishment mechanism 400 consists of a third bevel gear 401, a rotating rod 402, a fixed plate 403, a ball 404, a liquid inlet 405, a first liquid inlet pipe 406, a spherical tube 407, and a second liquid inlet pipe 408. The third bevel gear 401 is meshed on the outer side of the second bevel gear 203. The rotating rod 402 is fixedly provided on the side of the third bevel gear 401. The fixed plate 403 is fixedly provided on the top surface of the electrolytic tank 100. A ball 404 is fixedly provided at the end of the rotating rod 402 away from the third bevel gear 401. The liquid inlet 405 is provided through the outer side of the ball 404. The top surface of the electrolytic tank 100 is connected to the first liquid inlet pipe 406 through the feed port. The top of the first liquid inlet pipe 406 is connected to the spherical tube 407. The ball 404 is located inside the spherical tube 407. The top of the spherical tube 407 is connected to the second liquid inlet pipe 408.

[0037] In this embodiment, the side of the third bevel gear 401 is rotatably connected to the fixed plate 403, the rotating rod 402 passes through the fixed plate 403 and is rotatably connected to the fixed plate 403, the rotating rod 402 passes through the spherical tube 407 to the inside of the spherical tube 407 and is rotatably connected to the spherical tube 407 through a sealed bearing, the inside of the spherical tube 407 is provided with a spherical groove adapted to the ball 404, the ball 404 is rotatably connected to the spherical tube 407 through the spherical groove, and the top of the second liquid inlet pipe 408 is connected to the liquid holding tank 300.

[0038] In this embodiment, the size and number of teeth of the second bevel gear 203 are smaller than those of the third bevel gear 401. Electrolyte to be replenished is injected into the liquid tank 300. When the stirring blade 205 rotates to stir the electrolyte inside the electrolysis tank 100, the second bevel gear 203 rotates while simultaneously driving the third bevel gear 401 to rotate slowly. The rotation of the third bevel gear 401 drives the rotating rod 402 and the ball 404 to rotate. When the inlet groove 405 of the ball 404 begins to interact with the first… When the inlet pipe 406 and the second inlet pipe 408 are connected, the electrolyte inside the liquid tank 300 enters the electrolysis tank 100 through the second inlet pipe 408, the inlet tank 405, the first inlet pipe 406 and the feed port. When the electrolyte is replenished, the inlet tank 405 is completely covered by the inner wall of the spherical tube 407. During the continuous rotation of the stirring blade 205 to stir the electrolyte, the continuous rotation of the ball 404 can realize the automatic replenishment of electrolyte into the electrolysis tank 100 in a regular and quantitative manner.

[0039] The working principle of this utility model is as follows:

[0040] In use, the positive and negative terminals of an external power supply are connected to the electrolytic tank 100 via wires. The top cover is opened, and the electrolyte and the workpiece to be micro-arc oxidized are placed inside the electrolytic tank 100. The top cover is then closed. Discharging the workpiece using an external arc discharge device allows a film to form on the workpiece surface. Controlling the stirring motor 201 to drive the first bevel gear 202 to rotate drives the second bevel gear 203, which in turn drives the rotating shaft 204 and the stirring blade 205 to rotate. The stirring blade 205 stirs the electrolyte inside the electrolytic tank 100, accelerating heat exchange and preventing excessive local temperature differences in the electrolyte. Simultaneously, the second bevel gear 203 rotates... The third bevel gear 401 is driven to rotate slowly. The rotation of the third bevel gear 401 drives the rotating rod 402 and the ball 404 to rotate. When the liquid inlet 405 of the ball 404 begins to connect with the inside of the first liquid inlet pipe 406 and the second liquid inlet pipe 408, the electrolyte inside the liquid tank 300 enters the electrolysis tank 100 through the second liquid inlet pipe 408, the liquid inlet 405, the first liquid inlet pipe 406 and the feed port. When the electrolyte is replenished, the liquid inlet 405 is completely covered by the inner wall of the spherical tube 407. During the continuous rotation of the stirring blade 205 to stir the electrolyte, the continuous rotation of the ball 404 can realize the automatic replenishment of electrolyte into the electrolysis tank 100 in a regular and quantitative manner.

[0041] When the temperature sensor 206 detects that the temperature of the electrolyte inside the electrolysis tank 100 is too high, the temperature sensor 206 sends an electrical signal to the control panel 101. The control panel 101 controls the cooling chip 207 to work to absorb heat from the outside of the electrolysis tank 100 and dissipate heat through the side of the cooling chip 207 away from the electrolysis tank 100, thereby accelerating the heat exchange between the electrolyte inside the electrolysis tank 100 and the external environment, and achieving a cooling effect.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A micro-arc oxidation electrolysis device with automatic liquid replenishment, characterized in that: Include: Electrolytic tank (100), the electrolytic tank (100) is provided with a liquid tank (300) above; Temperature control mechanism (200), the temperature control mechanism (200) is arranged inside and outside the electrolytic tank (100), and the temperature control mechanism (200) is used for reducing the temperature of electrolyte in the electrolytic tank (100); Automatic liquid supplementing mechanism (400), the automatic liquid supplementing mechanism (400) is arranged on the top of the electrolytic tank (100), and the automatic liquid supplementing mechanism (400) is used for automatically supplementing electrolyte in the electrolytic tank (100).

2. The micro-arc oxidation electrolytic device with automatic liquid supplementing according to claim 1, characterized in that: The control panel (101) is fixedly installed on the outer surface of the electrolytic tank (100), a plurality of support columns are fixedly arranged on the bottom surface of the electrolytic tank (100), the top surface and the bottom surface of the electrolytic tank (100) are respectively provided with a feeding port and a discharging port, the bottom surface of the electrolytic tank (100) is communicated with a discharging pipe through the discharging port, and a valve is installed on the discharging pipe.

3. The micro-arc oxidation electrolytic device with automatic liquid supplementing according to claim 2, characterized in that: The temperature control mechanism (200) includes a stirring motor (201), a first bevel gear (202), a second bevel gear (203), a rotating shaft (204), a stirring blade (205), a temperature sensor (206) and a refrigeration fin (207), the stirring motor (201) is fixedly installed on the top surface of the electrolytic tank (100), the output end of the stirring motor (201) is fixedly provided with the first bevel gear (202), the first bevel gear (202) is meshed with the second bevel gear (203) outside, the bottom surface of the second bevel gear (203) is fixedly provided with the rotating shaft (204), the rotating shaft (204) is fixedly provided with a plurality of stirring blades (205) outside, the temperature sensor (206) is fixedly installed on the top surface inside the electrolytic tank (100), and a plurality of refrigeration fins (207) are fixedly installed outside the electrolytic tank (100).

4. The micro-arc oxidation electrolytic device with automatic liquid supplementing according to claim 3, characterized in that: The bottom surface of the second bevel gear (203) is rotatably connected with the top surface of the electrolytic tank (100), the rotating shaft (204) penetrates the electrolytic tank (100) to the inside of the electrolytic tank (100) and is rotatably connected with the electrolytic tank (100) through a sealing bearing, and the control panel (101) is electrically connected with the stirring motor (201), the temperature sensor (206) and the refrigeration fin (207) through wires respectively.

5. The micro-arc oxidation electrolytic device with automatic liquid supplementing according to claim 3, characterized in that: The automatic liquid supplementing mechanism (400) comprises a third bevel gear (401), a rotating rod (402), a fixed plate (403), a ball (404), a liquid inlet groove (405), a first liquid inlet pipe (406), a spherical pipe (407) and a second liquid inlet pipe (408), the outer side of the second bevel gear (203) is engaged with the third bevel gear (401), the side of the third bevel gear (401) is fixedly provided with the rotating rod (402), the top of the electrolytic tank (100) is fixedly provided with the fixed plate (403), the end of the rotating rod (402) away from the third bevel gear (401) is fixedly provided with the ball (404), the outer side of the ball (404) is penetratedly provided with the liquid inlet groove (405), the top of the electrolytic tank (100) is communicated with the first liquid inlet pipe (406) through a feeding port, the top of the first liquid inlet pipe (406) is communicated with the spherical pipe (407), and the top of the spherical pipe (407) is communicated with the second liquid inlet pipe (408).

6. The micro-arc oxidation electrolytic device with automatic liquid supplementing according to claim 5, characterized in that: The side of the third bevel gear (401) is rotationally connected with the fixed plate (403), the rotating rod (402) penetrates through the fixed plate (403) and is rotationally connected with the fixed plate (403), the spherical pipe (407) is internally provided with a spherical groove matched with the ball (404), the ball (404) is rotationally connected with the spherical pipe (407) through the spherical groove, and the top of the second liquid inlet pipe (408) is communicated with the liquid containing tank (300).