Anodic oxidation device
By designing replaceable custom tooling and multiple cathode lead holders, combined with conductive pins and coaxial electrode posts, the anodizing device has achieved adaptability to workpieces of different specifications and uniform current conduction, solving the problems of versatility and oxide film quality of existing devices, and improving production efficiency and oxide film uniformity.
Patent Information
- Application Number
- CN202520075068.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing anodizing equipment is difficult to adapt to workpieces of different specifications, and uneven current conduction during the oxidation process leads to a decline in the quality of the oxide film.
The design incorporates replaceable custom tooling and multiple cathode lead holders, along with a coaxial arrangement of conductive pins, cathode conductive posts, and anode conductive posts to ensure uniform current conduction. A vacuum environment is achieved through vacuum connection holes, adapting to the oxidation of workpieces of different sizes.
It improves the versatility and production efficiency of the equipment, ensures the uniformity and quality of the oxide film, and enhances the stability and safety of the equipment.
Smart Images
Figure CN223837595U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of workpiece oxidation apparatus, and in particular to an anodizing apparatus. Background Technology
[0002] When oxidizing certain workpieces, it is necessary to ensure that the cathode and anode are precisely aligned with the center of the workpiece during the installation process.
[0003] Reference Figure 1 The current anodizing device includes a mounting box 10 and a mounting cover 20. An oxidation chamber 11 is provided inside the mounting box 10. The oxidation chamber is equipped with a positioning ring 12 and a conductive block 13. A cathode conductive column 60 is connected to the side wall of the mounting box 10. The cathode conductive column 60 and the conductive block 13 are connected. An anode conductive column 70 is connected to the mounting cover 20. The workpiece 50 is positioned by the positioning ring 12 and the conductive block 13. After the mounting box 10 and the mounting cover 20 are sealed together, vacuum oxidation is performed.
[0004] For the aforementioned technologies, different anodizing devices need to be developed for different specific workpieces 50 at different times. Utility Model Content
[0005] In order to enable the prototype oxidation device to adapt to workpieces of different specifications, this application provides an anodizing device.
[0006] This application provides an anodizing apparatus, which adopts the following technical solution:
[0007] An anodizing apparatus includes a mounting box and a mounting cover sealed to the mounting box. An oxidation chamber is provided inside the mounting box. A cathode lead holder and a custom-made fixture mounted on the cathode lead holder are installed inside the mounting box. The cathode lead holder has a mounting groove for placing the custom-made fixture. The outer wall of the custom-made fixture has a fixed size for fitting with the mounting groove. The workpiece mounting cavity of the custom-made fixture is designed according to the workpiece size. A conductor is installed between the custom-made fixture and the cathode lead holder. A cathode conductive post is connected to the cathode lead holder. An anode conductive post is mounted on the mounting cover. The cathode lead holder and the anode conductive post are coaxial.
[0008] By adopting the above technical solution, the sealed connection between the mounting box and the mounting cover ensures the airtightness of the oxidation chamber, providing the necessary environment for the anodizing process. The cathode lead holder and customized tooling design inside the mounting box allow workpieces of different sizes to be adapted by changing the customized tooling, increasing the versatility and flexibility of the device. The setting of the conductor, cathode conductive column and anode conductive column enables the cathode electrode and anode electrode to automatically align with the center of the workpiece, as well as the effective conduction of current, ensuring the normal progress of the workpiece oxidation process.
[0009] Optionally, the conductor is a conductive nail, and the nail head of the conductive nail is located inside the workpiece mounting cavity and in contact with the workpiece.
[0010] By adopting the above technical solution, the conductive nail has the effect of supporting and conducting electricity to the workpiece. The design of the conductive nail allows the current to be directly applied to the workpiece in the workpiece mounting cavity, reducing current loss and improving the efficiency of current transmission.
[0011] Optionally, the mounting box may be provided with multiple cathode lead holders.
[0012] By adopting the above technical solution, the design of multiple cathode lead holders enables the device to process multiple workpieces simultaneously, thereby improving production efficiency.
[0013] Optionally, the cathode lead holder is distributed circumferentially along the mounting box.
[0014] By adopting the above technical solutions, the circumferential distribution also improves space utilization, enabling the device to be designed more compactly.
[0015] Optionally, the mounting box has mounting planes spaced apart on its outer periphery, and the cathode conductive posts are mounted on the mounting planes of the mounting box.
[0016] By adopting the above technical solution, this design allows for more stable installation of the cathode conductive posts, while also facilitating subsequent maintenance and replacement. The spacing of the mounting plane also helps to improve space utilization and the compactness of the device.
[0017] Optionally, it also includes a support base for supporting the mounting box, wherein a plurality of positioning blocks are mounted on the support base and the positioning blocks are in contact with the outer wall of the mounting box.
[0018] By adopting the above technical solution, the support base provides stable support for the mounting box, while the positioning block ensures the accurate positioning of the mounting box on the support base, providing convenience if the entire mounting box needs to be replaced or repaired in the future.
[0019] Optionally, the mounting box has mounting arc surfaces distributed on its outer periphery, the mounting arc surfaces are spaced apart, the positioning block is attached to the mounting arc surface, and the cathode conductive post is mounted on the mounting plane.
[0020] By adopting the above technical solution, the design of the mounting arc surface allows the positioning block to fit more tightly onto the mounting box, thereby improving the stability and positioning accuracy of the device.
[0021] Optionally, the support base is equipped with clamps for securing the mounting cover.
[0022] By adopting the above technical solution, the clamp design allows the mounting cover to be more firmly fixed on the mounting box, thereby ensuring the sealing and safety of the oxidation chamber.
[0023] Optionally, the mounting cover has a vacuum connection hole, which is centrally located.
[0024] By adopting the above technical solution, the design of the vacuum connection hole enables the device to perform anodizing treatment in a vacuum environment, thereby avoiding the problem of oxide film quality degradation caused by the presence of air. At the same time, the central setting also helps to ensure the uniformity and efficiency of vacuuming.
[0025] In summary, this application includes at least one of the following beneficial effects:
[0026] 1. The design of interchangeable custom tooling and multiple cathode lead holders enables the device to adapt to workpieces of various sizes and process multiple workpieces simultaneously, thereby improving production efficiency.
[0027] 2. By designing the circumferential distribution of conductive pins and cathode lead holders, as well as the vacuum connection holes, the current can be applied more evenly to the workpiece surface, reducing energy loss and improving the uniformity and quality of the oxide film.
[0028] 3. The design of the support base, positioning block, clamps, and mounting plane ensures the stability and safety of the device, providing a strong guarantee for the smooth progress of the anodizing process. Attached Figure Description
[0029] Figure 1 This is a structural schematic diagram of the technology related to this application;
[0030] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application;
[0031] Figure 3 This is a partial sectional view of the internal structure of an embodiment of this application;
[0032] Figure 4 This is a schematic diagram illustrating the circumferential distribution of the cathode lead holder in an embodiment of this application.
[0033] Explanation of reference numerals in the attached drawings: 10. Mounting box; 11. Oxidation chamber; 12. Positioning ring; 13. Conductive block; 14. Mounting plane; 15. Annular flange; 16. Sealing ring; 17. Mounting arc surface; 20. Mounting cover; 21. Vacuum connection hole; 30. Cathode lead holder; 31. Mounting groove; 32. Second mounting hole; 40. Custom tooling; 41. Workpiece mounting cavity; 42. First mounting hole; 50. Workpiece; 60. Cathode conductive post; 70. Anode conductive post; 80. Conductor; 90. Support base; 91. Positioning block; 92. Clamp; 93. Fixing base. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 2-4 This application will be described in further detail.
[0035] This application discloses an anodizing apparatus. (Refer to...) Figure 2 and Figure 3 An anodizing apparatus includes a mounting box 10 and a mounting cover 20 sealed to the mounting box 10. An oxidation chamber 11 is provided inside the mounting box 10. A cathode lead holder 30 and a custom-made fixture 40 are installed inside the oxidation chamber 11 of the mounting box 10. The cathode lead holder 30 has a mounting groove 31 for placing the custom-made fixture 40. The cathode lead holder 30 has an upward-opening cylindrical structure, and the mounting groove 31 has a circular cross-section. The custom-made fixture 40 is generally cylindrical, and its outer wall has a fixed size for fitting against the inner wall of the mounting groove 31. The custom-made fixture 40 has a workpiece mounting cavity 41, which is designed according to the structure and dimensions of the workpiece 50.
[0036] Reference Figure 3 The anodizing apparatus also includes a cathode conductive post 60 and an anode conductive post 70. The anode conductive post 70 is mounted on the upper surface of the mounting cover 20 using indium foil encapsulation technology and is connected to the anode power supply. The cathode conductive post 60 is mounted on the side wall of the mounting box 10 using indium foil encapsulation technology and is connected to the cathode power supply. Indium foil encapsulation technology is prior art and is not improved in this application. The cathode conductive post 60 is connected to the cathode lead holder 30, and the anode conductive post 70 and the cathode lead holder 30 are coaxially arranged. When the customized fixture 40 is installed in the cathode lead holder 30, the cathode electrode of the cathode conductive post 60 and the anode electrode of the anode conductive post 70 automatically align with the center of the workpiece 50, uniformly oxidizing the surface of the workpiece 50.
[0037] Reference Figure 3Specifically, the workpiece 50 in this application has a bowl-shaped structure, and the cross-section of the workpiece mounting cavity 41 is circular. When the workpiece 50 is placed in the workpiece mounting cavity 41, the workpiece 50 is stably mounted on the workpiece 50 fixture by its own weight and the inner side wall of the fixture. If the workpiece 50 changes, only different customized fixtures 40 need to be customized to match the workpiece 50, and the cathode lead holder 30 does not need to be replaced, so that the anodizing device can better adapt to workpieces 50 of different specifications.
[0038] Reference Figure 3 A conductor 80, which is a conductive pin, is installed between the cathode lead holder 30 and the custom fixture 40. The head of the conductive pin is located inside the workpiece mounting cavity 41. A first mounting hole 42 is provided in the custom fixture 40, and a second mounting hole 32 is provided in the cathode lead holder 30. The second mounting hole 32 does not penetrate the cathode lead holder 30. The conductive pin passes through the bottom of the first mounting hole 42 and the second mounting hole 32 and abuts against each other. The conductive pin supports the workpiece 50 and provides conductivity. The center of the bottom of the workpiece 50 is aligned with the center of the conductive pin. The conductive pin is connected to the cathode conductive post 60 through the cathode lead holder 30, ensuring that the workpiece 50 is stably installed within the custom fixture 40. The cathode conductive post 60 automatically aligns with the workpiece 50.
[0039] Reference Figure 4 Multiple cathode lead holders 30 are provided inside the mounting box 10. The multiple cathode lead holders 30 are distributed around the circumference of the mounting box 10, and the cathode conductive post 60 and the cathode lead holder 30 correspond one-to-one.
[0040] Reference Figure 3 In order to securely install the cathode conductive post 60 on the side wall of the mounting box 10, mounting planes 14 are distributed on the outer periphery of the mounting box 10. The mounting planes 14 are spaced apart, so that when the cathode conductive post 60 passes through the mounting box 10, it can be attached to and embedded in the mounting planes 14 of the mounting box 10.
[0041] Reference Figure 3 The mounting box 10 has an upward opening, and an annular protrusion 15 is provided at the opening of the mounting box 10. The annular protrusion 15 is embedded in the sealing ring 16. When the mounting cover 20 and the mounting box 10 are connected, the sealing ring 16 is squeezed to achieve a sealing effect.
[0042] Reference Figure 2 and Figure 3 The anodizing apparatus also includes a support base 90 for supporting the mounting box 10, the support base 90 being a circular ring structure. Multiple positioning blocks 91 are mounted on the support base 90, and the positioning blocks 91 are evenly spaced along the circumference of the support base 90. Mounting arc surfaces 17 are distributed on the outer wall of the mounting box 10, spaced apart, and the positioning blocks 91 are attached to the mounting arc surfaces 17. The mounting arc surfaces 17 and the mounting plane 14 are staggered.
[0043] A clamp 92 for fixing the mounting cover 20 is installed on the support base 90. A fixing base 93 is connected to a part of the positioning base. The clamp 92 is fixedly installed on the fixing base 93. The clamp 92 is existing technology. The clamp 92 handle drives the clamp 92 pressure head to press down on the mounting cover 20, thereby achieving a fixed connection between the mounting cover 20 and the mounting box 10.
[0044] Reference Figure 2 A vacuum connection hole 21 is provided in the middle of the mounting cover 20. After the vacuum equipment is connected to the vacuum connection hole 21, the mounting box 10 and the mounting cover 20 are sealed and installed, and the vacuum equipment starts to perform vacuuming.
[0045] The implementation principle of an anodizing apparatus according to an embodiment of this application is as follows:
[0046] The mounting box 10 and mounting cover 20 are sealed together to form a closed oxidation chamber 11. This chamber provides a stable and controllable environment for the anodizing process. The custom tooling 40 and cathode lead holder 30 are adapted to fit together. The workpiece 50 is installed in the custom tooling 40, ensuring that the conductor 80 is in contact with the center of the workpiece 50. The air in the oxidation chamber 11 is extracted through the vacuum connection hole 21 to create a vacuum environment for oxidizing the workpiece 50. Through the design of multiple cathode lead holders 30 and custom tooling 40, the device can process multiple workpieces 50 simultaneously. Furthermore, the design of the custom tooling 40 allows the device to be adapted to workpieces 50 of various sizes, improving the versatility and flexibility of the device.
[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An anodizing apparatus, characterized in that: The assembly includes a mounting box (10) and a mounting cover (20) that is sealed to the mounting box (10). An oxidation chamber (11) is provided inside the mounting box (10). A cathode lead holder (30) and a custom tooling (40) installed on the cathode lead holder (30) are installed inside the mounting box (10). The cathode lead holder (30) has a mounting groove (31) for placing the custom tooling (40). The outer wall of the custom tooling (40) is of a fixed size and is used to cooperate with the mounting groove (31). The workpiece mounting cavity (41) of the custom tooling (40) is designed according to the size of the workpiece (50). A conductor (80) is installed between the custom tooling (40) and the cathode lead holder (30). A cathode conductive post (60) is connected to the cathode lead holder (30). An anode conductive post (70) is installed on the mounting cover (20). The cathode lead holder (30) and the anode conductive post (70) are coaxial.
2. The anodizing apparatus according to claim 1, characterized in that: The conductor (80) is a conductive nail, and the nail head of the conductive nail is located in the workpiece mounting cavity (41) and in contact with the workpiece (50).
3. The anodizing apparatus according to claim 2, characterized in that: Multiple cathode lead holders (30) are provided inside the mounting box (10).
4. The anodizing apparatus according to claim 3, characterized in that: The cathode lead holder (30) is distributed circumferentially along the mounting box (10).
5. The anodizing apparatus according to claim 4, characterized in that: The mounting box (10) has mounting planes (14) spaced apart on its outer periphery, and the cathode conductive post (60) is mounted on the mounting plane (14) of the mounting box (10).
6. The anodizing apparatus according to claim 2, characterized in that: It also includes a support base (90) for supporting the mounting box (10), on which a plurality of positioning blocks (91) are mounted, the positioning blocks (91) contacting the outer wall of the mounting box (10).
7. An anodizing apparatus according to claim 6, characterized in that: The mounting box (10) has mounting arc surfaces (17) distributed on its outer periphery. The mounting arc surfaces (17) are spaced apart. The positioning block (91) is attached to the mounting arc surface (17). The cathode conductive column (60) is mounted on the mounting plane (14).
8. An anodizing apparatus according to claim 7, characterized in that: The support base (90) is equipped with clamps (92) for fixing the mounting cover (20).
9. An anodizing apparatus according to claim 1, characterized in that: The mounting cover (20) has a vacuum connection hole (21) which is centrally located.