Micro-arc oxidation rack

Abstract

The present disclosure provides a micro-arc oxidation hanger, comprising a support body and a mounting assembly, wherein the mounting assembly comprises a main body, a tip body, and a connecting structure, wherein the main body is arranged on the support body, the tip body is used to hang a workpiece, and the connecting structure connects the main body and the tip body, and when the workpiece is not hung, the tip body is located at a first position relative to the main body through the connecting structure, and when the workpiece is hung, the tip body can be fixed relative to the main body at any position between the first position and a second position through the connecting structure. Since the mounting assembly connects the main body and the tip body through the connecting structure, the present disclosure realizes that a set of hangers can meet the needs of similar products without the need for frequent replacement of hangers, which not only improves efficiency but also reduces costs; and, the tip body is fixed at a required position relative to the main body through the connecting structure, thereby avoiding the problem of the elastic arm hanger becoming weaker after repeated use.

Description

Technical Field

[0001] The present disclosure relates to the technical field of micro-arc oxidation, and in particular to a micro-arc oxidation hanger. Background Art

[0002] Micro-arc oxidation (MAO) is a commonly used surface modification technique. It uses metals or alloys such as aluminum, magnesium, and titanium as anodes and immerses them in a specific electrolyte. In a strong electric field formed by high voltage and high current, the workpiece is pulled from the Faraday region of anodic oxidation to the high-voltage discharge region, generating micro-arc discharges on the workpiece surface. Under the oxidation reaction, a ceramic film of a certain thickness grows on the metal surface. Compared with other surface modification techniques such as electroplating, spraying, and anodizing, MAO offers advantages such as simplicity, environmental friendliness, low cost, and high production efficiency. It has gradually become a primary method for improving the corrosion resistance of metals or alloys such as aluminum, magnesium, and titanium.

[0003] Micro-arc oxidation (MAO) racks are crucial tools in the MAO process, crucial for ensuring smooth conduction and MAO of workpieces. Existing MAO racks mostly utilize elastic arms, but these often present challenges: They require custom fabrication for different workpieces, even for the same product series. This increases costs, complicates the manufacturing process, and fails to address the weakening of the rack's elasticity after repeated use. Summary of the Invention

[0004] In view of this, the present disclosure provides a micro-arc oxidation rack, and the technical solution is as follows.

[0005] A micro-arc oxidation rack includes a support body and a mounting assembly, wherein the mounting assembly includes:

[0006] A main body, arranged on the support body;

[0007] a tip body for hanging a workpiece; and

[0008] a connecting structure connecting the main body and the tip body;

[0009] When no workpiece is hung on the tip body, the tip body is located at a first position relative to the main body through the connecting structure; when a workpiece is hung on the tip body, the tip body can be fixed at any position between the first position and a second position relative to the main body through the connecting structure.

[0010] Optionally, the connection structure includes a continuous force generating member, which is used to provide a repulsive force between the main body and the tip body, so that the tip body can provide a specified supporting force to the workpiece when hanging the workpiece.

[0011] Optionally, the continuous force generating member includes a first magnetic member and a second magnetic member, the first magnetic member is arranged on the main body, the second magnetic member is arranged on the tip body, the first magnetic member has a first surface, the second magnetic member has a second surface, the first surface is opposite to the second surface, and the polarity of the first surface is the same as the polarity of the second surface.

[0012] Optionally, both the first magnetic member and the second magnetic member adopt a circular Halbach array magnet structure.

[0013] Optionally, the connecting structure includes a first connecting part and a second connecting part, the first connecting part is arranged on the main body, the second connecting part is arranged on the tip body, and the second connecting part can slide relative to the first connecting part so that the tip body can be moved between the first position and the second position relative to the main body.

[0014] Optionally, the second connecting part includes a sliding portion, the first connecting part is provided with a sliding auxiliary structure corresponding to the sliding portion, and the second connecting part can slide relative to the first connecting part through the cooperation between the sliding portion and the sliding auxiliary structure.

[0015] Optionally, the sliding auxiliary structure includes a sliding groove provided on the first connecting portion or a sliding block provided on the first connecting portion;

[0016] The sliding portion includes a convex portion arranged corresponding to the sliding groove or a guide rail slidably connected to the slider;

[0017] Two ends of the sliding groove or two ends of the guide rail form the first position and the second position respectively.

[0018] Optionally, a pin shaft passes through the second connecting portion, and the pin shaft has a portion extending outside the second connecting portion to form the protrusion.

[0019] Optionally, the first connecting portion has a connecting end surface opposite to the tip body, the sliding groove extends from the connecting end surface in a direction away from the tip body, and a stopper is provided on the connecting end surface to limit the protrusion.

[0020] Optionally, the support body includes a support body and a plurality of support arms extending from the support body to both sides respectively, the support arms have distal ends away from the support body, and the mounting assembly is provided on the distal end of each support arm.

[0021] The present disclosure has the following beneficial effects: since the mounting assembly connects the main body and the tip body through a connecting structure, a set of hangers can meet the needs of similar products without the need to frequently replace hangers, which not only improves efficiency but also reduces costs; and, through the connecting structure, the tip body is fixed at the required position relative to the main body, avoiding the problem of the elastic arm hanger becoming weaker after repeated use.

[0022] The advantages and features of the present disclosure are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following drawings of the present disclosure are hereby incorporated into the present disclosure for understanding the present disclosure. The drawings show the embodiments of the present disclosure and their descriptions, and are used to explain the principles of the present disclosure. In the drawings,

[0024] Figure 1 Schematic diagram of the structure of a micro-arc oxidation rack according to an exemplary embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure of the mounting component in;

[0026] Figure 3 for Figure 2 Exploded view of the mount assembly shown in ;

[0027] Figure 4 for Figure 2 Schematic diagram of the mounting assembly in the first position (with the first magnetic member removed);

[0028] Figure 5 for Figure 2 Schematic diagram of the mounting assembly in the second position (the first magnetic part is removed).

[0029] Explanation of the numbers in the figure: 10. Support body; 11. Support body; 12. Support arm; 20. Mounting assembly; 21. Main body; 22. Tip body; 23. Connecting structure; 231. Continuous force generating part; 2311. First magnetic part; 23111. First surface; 2312. Second magnetic part; 23121. Second surface; 232. First connecting part; 23201. Connecting end face; 2321. Sliding auxiliary structure; 233. Second connecting part; 2331. Sliding part; 234. Stopper. DETAILED DESCRIPTION

[0030] In the following description, a large amount of detail is provided to enable a thorough understanding of the present disclosure. However, it will be appreciated by those skilled in the art that the following description merely illustrates optional embodiments of the present disclosure, and the present disclosure may be implemented without one or more of these details. In addition, to avoid confusion with the present disclosure, some technical features well known in the art are not described in detail.

[0031] The micro-arc oxidation hanger disclosed herein is primarily used to hang a workpiece to be processed within a micro-arc oxidation apparatus so that, through a combination of an electrolyte and corresponding electrical parameters, a ceramic film layer composed primarily of a matrix metal oxide grows on the surface of the workpiece under the instantaneous high temperature and high pressure generated by arc discharge. The workpiece to be processed can be the housing of electronic devices such as laptop computers and tablet computers.

[0032] like Figures 1 to 5 As shown, the micro-arc oxidation hanger includes a support body 10 and a mounting assembly 20, and the mounting assembly 20 includes a main body 21, a tip body 22 and a connecting structure 23. The main body 21 is arranged on the support body 10. Here, the main body 21 can be connected to the support body 10 in a detachable manner such as snap connection, screw connection, etc., so as to facilitate the replacement of the entire mounting assembly 20. The tip body 22 is used to hang the workpiece (that is, the workpiece to be processed as mentioned above). In order to facilitate the hanging of the workpiece, the tip body 22 can be a columnar body, and one end of the columnar body forms a tip so that when the workpiece is hung, point contact is formed between the workpiece and the workpiece to support the workpiece. The connecting structure 23 connects the main body 21 and the tip body 22. When the workpiece is not hung, the tip body 22 is located in a first position (such as Figure 4 As shown, at this time, the tip body 22 is located at a first position relative to the main body 21. When the workpiece is hung on the tip body 22, the connecting structure 23 can be fixed relative to the main body 21 at any position between the first position and a second position (such as Figure 5 As shown, at this time, the tip body 22 is located at the second position relative to the main body 21), that is, through the setting of the connecting structure 23, the position of the tip body 22 relative to the main body 21 can be adjusted.

[0033] In a specific embodiment of the present disclosure, the connecting structure 23 includes a continuous force generating member 231, which is used to provide a repulsive force between the main body 21 and the tip body 22, so that the tip body 22 can provide a specified supporting force to the workpiece when hanging the workpiece. In this way, when hanging the workpiece, the workpiece can be firmly fixed on the hanger, thereby preventing the workpiece from falling from the hanger.

[0034] Here, the continuous force generating part 231 includes a first magnetic part 2311 and a second magnetic part 2312. The first magnetic part 2311 is arranged on the main body 21, and the second magnetic part 2312 is arranged on the tip body 22. The first magnetic part 2311 has a first surface 23111, and the second magnetic part 2312 has a second surface 23121. The first surface 23111 is opposite to the second surface 23121, and the polarity of the first surface 23111 is the same as the polarity of the second surface 23121. In this way, through the repulsive force between the first magnetic part 2311 and the second magnetic part 2312, the tip body 22 can be fixed at the required position relative to the main body 21.

[0035] Taking the workpiece as the shell of an electronic device such as a laptop computer or a tablet computer, since the shell space is small, the engaging position space of the entire micro-arc oxidation hanger is also small. In order to avoid the problem of insufficient magnetic force leading to the inability to stably fix the workpiece, in one embodiment of the present disclosure, the first magnetic member 2311 and the second magnetic member 2312 both adopt a circular Halbach array magnet structure (the circular Halbach array magnet structure belongs to the prior art and will not be described in detail here). Through the circular Halbach array magnet structure, the magnetism can be completely adjusted to one side. Specifically, the magnetism of the first magnetic member 2311 is completely adjusted to the first side 23111, and the magnetism of the second magnetic member 2312 is completely adjusted to the second side 23121. In this way, the repulsive force between the first magnetic member 2311 and the second magnetic member 2312 can be greater than the gravity of the workpiece, and can even reach more than 10 times the gravity of the workpiece. Even if the hung workpiece is heavy, stable support for the workpiece can be achieved.

[0036] Here, it should be noted that the continuous force generating member 231 is not limited to the magnetic component combination structure. In an embodiment not shown, the continuous force generating member 231 can also adopt an elastic member (such as a spring), and the elastic force of the elastic member can also fix the tip body 22 relative to the main body 21 at the required position.

[0037] In an embodiment of the present disclosure, in order to facilitate the position adjustment of the tip body 22 relative to the main body 21, the connecting structure 23 includes a first connecting part 232 and a second connecting part 233. The first connecting part 232 is arranged on the main body 21, and the second connecting part 233 is arranged on the tip body 22. The second connecting part 233 can slide relative to the first connecting part 232 so that the tip body 22 can be moved between the first position and the second position relative to the main body 21.

[0038] Here, the first connecting portion 232 may be a first column extending from the main body 21, with a hole formed in the center of the first column; the second connecting portion 233 may be a second column extending from the tip 22, and the second column may be inserted into the hole of the first column. It should be understood that the first column may be integrally formed with the main body 21 or fixedly connected to the main body 21; the second column may be integrally formed with the tip 22 or fixedly connected to the tip 22.

[0039] Specifically, the second connecting portion 233 includes a sliding portion 2331, and the first connecting portion 232 is provided with a sliding auxiliary structure 2321 corresponding to the sliding portion 2331. The second connecting portion 233 can slide relative to the first connecting portion 232 through the cooperation between the sliding portion 2331 and the sliding auxiliary structure 2321. Here, when the first connecting portion 232 and the second connecting portion 233 are both cylindrical, the sliding direction of the second connecting portion 233 relative to the first connecting portion 232 can be along the axial direction of the first connecting portion 232 or the second connecting portion 233.

[0040] like Figure 3 As shown, the sliding auxiliary structure 2321 includes a sliding groove opened on the first connecting part 232, and the sliding part 2331 includes a convex portion arranged corresponding to the sliding groove. The two ends of the sliding groove form a first position and a second position respectively, and the convex portion is limited to move between the first position and the second position.

[0041] In an embodiment not shown, the sliding auxiliary structure 2321 may also include a slider arranged on the first connecting part 232, and the sliding part 2331 includes a guide rail slidably connected to the slider, and the two ends of the guide rail respectively form a first position and a second position, and the slider is limited to moving between the first position and the second position.

[0042] In one embodiment of the present disclosure, a pin is provided across the second connecting portion 233, and the pin has a portion extending outside the second connecting portion 233 to form a convex portion. Through the cooperation of the pin and the slide groove, the tip body 22 can be easily moved between the first position and the second position relative to the main body 21.

[0043] In one embodiment of the present disclosure, the first connecting part 232 has a connecting end face 23201 opposite to the tip body 22, the slide groove extends from the connecting end face 23201 in a direction away from the tip body 22, and a stop member 234 is provided on the connecting end face 23201 to limit the protrusion, that is, the slide groove is an open groove, and the pin shaft can be assembled with the second connecting part 233 and then inserted into the slide groove through the opening of the slide groove, and then limited by the stop member 234.

[0044] In an embodiment not shown, the slide groove can also be a closed groove with both ends closed. When the slide groove is a closed groove with both ends closed, the pin shaft is inserted into the through hole of the first connecting part 232 in the second connecting part 233, and then crosses the second connecting part 233 through the slide groove.

[0045] See again Figure 1 The support body 10 includes a support body 11 and a plurality of support arms 12 extending from the support body 11 to both sides. The support arms 12 have distal ends away from the support body 11. A mounting assembly 20 is provided on the distal end of each support arm 12. The number of support arms 12 can be adjusted according to the shape of the workpiece to be hung.

[0046] Still taking the workpiece as the housing of an electronic device, there can be four support arms 12, and correspondingly, there are also four mounting components 20. Figure 1 For the micro-arc oxidation rack shown with four mounting assemblies 20, when in use, a force is applied to move the tips 22 of the two upper mounting assemblies 20 downward and the tips 22 of the two lower mounting assemblies 20 upward. The force is then removed, and the tips 22 of the two upper mounting assemblies 20 return upward under the action of the continuous force generating member 231, while the tips 22 of the two lower mounting assemblies 20 return downward under the action of the continuous force generating member 231, so that the workpiece is supported on the micro-arc oxidation rack. The micro-arc oxidation rack is then moved into a container filled with electrolyte, allowing the electrolyte to completely submerge the workpiece. Finally, power is applied to initiate the reaction, ensuring that the micro-arc oxidation reaction proceeds smoothly.

[0047] From the above, it can be seen that the micro-arc oxidation hanger disclosed in the present invention has a mounting assembly 20 that connects the main body 21 and the tip body 22 through a connecting structure 23. When the hung workpiece is adjusted, the mounting assembly 20 can be replaced, so that a set of hangers can meet the needs of similar products without the need to frequently replace hangers, which not only improves efficiency but also reduces costs; and, the connecting structure 23 fixes the tip body 22 at the required position relative to the main body 21, avoiding the problem of the elastic arm hanger becoming weaker after repeated use.

[0048] In addition, even if the tip body 22 is burned during the oxidation process, the continuous force generating member 231 can absorb the dimensional changes in the workpiece hanging point position caused by the tip discharge and corrosion of the tip body 22, so that the position of the workpiece will not change accordingly, thereby avoiding the workpiece falling off or abnormal tip discharge.

[0049] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the directional words "upper" and "lower" etc. is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatially relative terms include not only the orientation of the components as described in the figures, but also different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0052] It should be noted that the terms "first," "second," and the like in the specification and claims of the present disclosure and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0053] The present disclosure has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present disclosure to the described embodiments. In addition, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present disclosure, all of which fall within the scope of protection claimed by the present disclosure. The scope of protection of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A micro-arc oxidation hanger, comprising a support body (10) and a mounting assembly (20), characterized in that: The mounting assembly (20) includes: A main body (21) is arranged on the support body (10); a tip body (22) for hanging a workpiece; and a connecting structure (23) connecting the main body (21) and the tip body (22); Wherein, when the workpiece is not hung on the tip body (22), the tip body (22) is located at a first position relative to the main body (21) through the connecting structure (23); when the workpiece is hung on the tip body (22), the tip body (22) can be fixed at any position between the first position and a second position relative to the main body (21) through the connecting structure (23); The connecting structure (23) further comprises a first connecting portion (232) and a second connecting portion (233), wherein the first connecting portion (232) is arranged on the main body (21), and the second connecting portion (233) is arranged on the tip body (22), and the second connecting portion (233) is capable of sliding relative to the first connecting portion (232), so that the tip body (22) can be moved relative to the main body (21) between the first position and the second position; The second connecting part (233) includes a sliding part (2331), and the first connecting part (232) is provided with a sliding auxiliary structure (2321) corresponding to the sliding part (2331). The second connecting part (233) can slide relative to the first connecting part (232) through the cooperation between the sliding part (2331) and the sliding auxiliary structure (2321).

2. The micro-arc oxidation rack according to claim 1, characterized in that: The connecting structure (23) includes a continuous force generating member (231), and the continuous force generating member (231) is used to provide a repulsive force between the main body (21) and the tip body (22), so that the tip body (22) can provide a specified supporting force to the workpiece when hanging the workpiece.

3. The micro-arc oxidation rack according to claim 2, characterized in that: The continuous force generating member (231) comprises a first magnetic member (2311) and a second magnetic member (2312), wherein the first magnetic member (2311) is arranged on the main body (21), and the second magnetic member (2312) is arranged on the tip body (22), the first magnetic member (2311) has a first surface (23111), and the second magnetic member (2312) has a second surface (23121), the first surface (23111) is opposite to the second surface (23121), and the polarity of the first surface (23111) is the same as the polarity of the second surface (23121).

4. The micro-arc oxidation rack according to claim 3, characterized in that: The first magnetic member (2311) and the second magnetic member (2312) both adopt a circular Halbach array magnet structure.

5. The micro-arc oxidation rack according to claim 1, characterized in that: The sliding auxiliary structure (2321) comprises a sliding groove provided on the first connecting portion (232) or a sliding block provided on the first connecting portion (232); The sliding portion (2331) comprises a convex portion arranged corresponding to the sliding groove or a guide rail slidably connected to the sliding block; Two ends of the sliding groove or two ends of the guide rail form the first position and the second position respectively.

6. The micro-arc oxidation rack according to claim 5, characterized in that: A pin shaft is passed through the second connecting portion (233), and the pin shaft has a portion extending outside the second connecting portion (233) to form the convex portion.

7. The micro-arc oxidation rack according to claim 6, characterized in that: The first connecting portion (232) has a connecting end surface (23201) opposite to the tip body (22), the slide groove extends from the connecting end surface (23201) in a direction away from the tip body (22), and a stopper (234) is provided on the connecting end surface (23201) to limit the protrusion.

8. The micro-arc oxidation rack according to any one of claims 1 to 7, characterized in that: The support body (10) comprises a support body (11) and a plurality of support arms (12) extending from the support body (11) to both sides, wherein the support arms (12) have distal ends away from the support body (11), and the mounting assembly (20) is provided on the distal end of each support arm (12).

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