Micro-arc oxidation tool

Abstract

The utility model provides a micro-arc oxidation tool which comprises a tool body, and at least one tool clamp is arranged on the tool body. The tool clamp comprises a clamp body, the tool body is detachably connected with the clamp body, the clamp body is provided with at least two clamp ends, the clamp ends are detachably connected with hanging teeth, the clamp body and the hanging teeth are made of different materials, and the elasticity of the materials adopted by the clamp body is larger than that of the materials adopted by the hanging teeth. According to the technical scheme, the split type tool clamp is adopted, materials are selected according to the structural characteristics of the tool, the tool maintenance efficiency is improved, the tool maintenance cost, the treatment cost of waste water and waste gas generated by film stripping and the replacement difficulty of the hanging teeth are reduced, and the working efficiency is improved. The phenomenon that in the prior art, the whole tool clamp needs to be replaced in the maintenance process, and one product needs a new tool, so that resources are wasted is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to micro arc oxidation frock technical field, specifically, relate to a micro arc oxidation frock. BACKGROUND

[0002] Micro arc oxidation technology is a kind of technology that is commonly used for magnesium, aluminum and its alloy surface in electrolyte using applied electric field to make its surface in situ reaction to generate its own metal oxide. Figure 1 It is a kind of micro arc oxidation equipment structure schematic diagram in prior art, from Figure 1 It can be seen from the aluminum, magnesium alloy product using special frock fixture fixed as anode, placed in the electrolyte of pulse electric field environment, product surface occurs plasma discharge due to the action of terminal voltage, the high temperature and high pressure conditions generated make the aluminum, magnesium atom of micro area and the oxygen or additive in solution combine to generate the ceramic layer such as alumina, magnesium oxide, silicon dioxide and matrix metallurgical bonding.In this process, special frock fixture needs to be soaked in electrolyte solution with product, the main functions of fixture are: one, provide the conductive effect for product, so that the product can occur micro-arc oxidation reaction;Two, provide support fixed effect for product, avoid product to shake in the electrolyte with compressed air stirring and cause poor contact and lead to product ablation.

[0003] In the micro-arc oxidation process, titanium alloy or aluminum alloy material is generally used as the material of the clamp, but since the clamp metal surface will generate an oxide film in the solution, and the oxide film is insulating, therefore, the oxide film on the clamp needs to be removed after each micro-arc oxidation, but the base material of the clamp will be worn out during each removal process.As the clamp is recycled, when the clamp is worn out to a certain extent, the clamp needs to be repaired or replaced, however, the existing clamp is an integral structure, and the entire clamp needs to be repaired or replaced when the clamp is repaired or replaced, thus resulting in high frock maintenance cost, and high micro-arc oxidation production cost.

[0004] In addition, some micro-arc oxidation frock of 3C type light and thin magnesium, aluminum alloy products such as Figure 2As shown, the commonly used clamp is two-point support, and the product is fixed by the elasticity of the clamp. Generally, the fixture clamp is made of aluminum alloy, and some products with high elasticity requirements or special needs use titanium alloy; for the fixture main body, aluminum rods are generally used for cost considerations; and the entire fixture is then wrapped with plastic with acid and alkali resistance and high temperature resistance except for the position in contact with the product. However, whether the clamp is made of titanium alloy or aluminum alloy, after a micro-arc oxidation production, the part of the clamp where the oxide film is formed needs to be removed, and the conductive metal is exposed before the next production cycle. Therefore, as the number of uses of the clamp increases, the position of the clamp where the film is repeatedly formed and removed will gradually thin, soften or the sharp end will gradually become thin, and finally cannot achieve the function of fixing the product.

[0005] In addition, there are differences in the removal method of the clamp in the prior art. The oxide film of the titanium alloy fixture is generally removed by sandblasting or placing the fixture in a solution containing hydrofluoric acid, so either a sandblasting device needs to be added or a solution containing hydrogen fluoride needs to be used during production. However, whether to add a sandblasting device or to treat wastewater containing titanium elements and hydrogen fluoride (produced after removing the film using a solution containing hydrogen fluoride) will increase additional investment. Since the aluminum alloy fixture is used, its oxide film is generally removed by a solution mainly containing sodium hydroxide, which has obvious advantages in environmental protection and wastewater treatment in terms of difficulty and cost, so to reduce investment costs, the micro-arc oxidation fixture usually uses an aluminum alloy fixture. However, the elasticity of the aluminum alloy clamp is poorer than that of the titanium alloy, especially after the number of product hanging reaches a certain number, the clamp will become soft, making it unable to fix the product, so it needs to be repaired or replaced, resulting in a short service life of the aluminum alloy clamp. In addition, when the clamp is repaired or replaced, the plastic with acid and alkali resistance and high temperature resistance wrapped around the outside of the clamp and the connection between the clamp and the fixture main body needs to be removed, which is low in maintenance efficiency and troublesome. Practical new type content

[0006] In view of the defects in the prior art, the purpose of the present application is to provide a micro-arc oxidation fixture, which uses a split fixture clamp and selects materials according to the characteristics of each structure of the fixture, thereby improving the maintenance efficiency of the fixture and reducing the maintenance cost of the fixture.

[0007] To solve the above technical problems, the present application provides a micro-arc oxidation fixture, comprising a fixture main body, at least one fixture clamp is arranged on the fixture main body;

[0008] The tool clamp comprises a clamp body, a tool body which is detachably connected with the clamp body, at least two clamp end portions provided on the clamp body, and a hanging tooth which is detachably connected with the clamp end portion, wherein the clamp body and the hanging tooth are made of different materials, and the elasticity of the material of the clamp body is greater than that of the material of the hanging tooth.

[0009] Further, the clamp body is made of titanium alloy.

[0010] Further, the hanging tooth is made of aluminum alloy.

[0011] Further, the clamp body is wrapped with acid and alkali resistant material on the outside, the acid and alkali resistant material is located between each hanging tooth, and the end portion of the acid and alkali resistant material is in contact with the end portion of the hanging tooth.

[0012] Further, the hanging tooth and the clamp body are wrapped with acid and alkali resistant insulation material on the outside.

[0013] Further, the shapes of each hanging tooth provided on the clamp body are the same or different.

[0014] Further, the tool body comprises a first connecting rod, and the clamp body is detachably connected with the first connecting rod.

[0015] Further, the tool body comprises a first connecting rod, at least one second connecting rod is provided on the first connecting rod, and the clamp body is detachably connected with the second connecting rod.

[0016] Further, the shape of the hanging tooth is triangular, trapezoidal or a combination shape of triangular at one end and trapezoidal at the other end.

[0017] Further, the tool body is detachably connected with the clamp body through a tool connecting piece, and the hanging tooth is detachably connected with the clamp body through a clamp connecting piece.

[0018] Compared with the prior art, the tool clamp has the following beneficial effects:

[0019] (1) The split tool clamp is adopted, and the material of each structure of the tool is selected, that is, the tool clamp is composed of a clamp body and a replaceable hanging tooth, the clamp body and the hanging tooth are detachably connected, the materials of the clamp body and the hanging tooth are different, and the elasticity of the material of the clamp body is greater than that of the material of the hanging tooth. Therefore, only the hanging tooth needs to be repaired or replaced during maintenance of the tool clamp, avoiding the need for overall repair or replacement of the integrated clamp in the prior art, prolonging the overall service life of the micro-arc oxidation tool, reducing the tool maintenance cost, and simplifying the post-micro-arc oxidation reaction film removal treatment of the tool, thereby reducing the processing cost.

[0020] (2) The clamp body is made of titanium alloy material, and the hanging tooth is made of aluminum alloy material. Since the elasticity of titanium alloy is stronger than that of aluminum alloy, compared with the integrated aluminum alloy clamp in the prior art, the tool clamp in the present application can effectively avoid the problem of loss of elasticity caused by too many uses, thereby prolonging the overall service life of the micro-arc oxidation tool. In addition, since the outer side of the non-joined part of the clamp body and the hanging tooth is wrapped with acid and alkali resistant material, and the outer side of the joint is wrapped with acid and alkali resistant insulation material, the outer side of the clamp body will not generate an oxide film during the micro-arc oxidation reaction. Therefore, it is not necessary to use a film removal solution containing hydrofluoric acid to remove the film of the clamp body, thereby reducing the treatment cost of waste water and waste gas.

[0021] (3) Since only the sharp part of the replaceable aluminum alloy hanging tooth of the tool clamp is exposed to the electrolyte solution for micro-arc oxidation reaction, only the sharp part of the aluminum alloy hanging tooth needs to be treated with sodium hydroxide solution for film removal during film removal, improving the convenience of film removal solution management and reducing the treatment cost of waste water and waste gas generated by film removal.

[0022] (4) Since the outer side of the clamp body is wrapped in sections, only the acid and alkali resistant insulation material wrapped at the joint between the clamp body and the hanging tooth needs to be removed when replacing the hanging tooth, reducing the difficulty of replacing the hanging tooth and improving the efficiency of tool maintenance.

[0023] (5) Since only the hanging tooth needs to be replaced during tool maintenance, and the entire tool clamp does not need to be replaced, the consumables are only the hanging tooth, not the entire tool clamp, effectively avoiding the resource waste caused by replacement of the entire tool clamp in the prior art, achieving the effect of reducing the tool maintenance cost.

[0024] (6) The shape of the hanging tooth can be designed according to requirements, that is, hanging teeth of different lengths and different sharp tips can be designed to adapt to different products, expanding the application range of a single tool, improving the utilization rate of the tool, avoiding resource waste caused by the need for a new tool for a product, and thereby reducing the micro-arc oxidation production cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof as read with reference to the following drawings:

[0026] Figure 1 is a structural schematic view of a micro-arc oxidation equipment in the prior art;

[0027] Figure 2 is a structural schematic view of a micro-arc oxidation tooling in the prior art;

[0028] Figure 3 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 1 ;

[0029] Figure 4 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 2 ;

[0030] Figure 5 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 3 ;

[0031] Figure 6 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 4 ;

[0032] Figure 7 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 5 ;

[0033] Figure 8 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 6 ;

[0034] Figure 9 is a structural schematic view of a tooling fixture provided by the embodiment of the present application Figure 7 ;

[0035] Figure 10 is a structural schematic view of a micro-arc oxidation tooling provided by the embodiment of the present application.

[0036] In the drawings:

[0037] 1. Micro-arc oxidation tool; 101, tool main body; 1011, first connecting rod; 1012, second connecting rod; 102, tool clamp; 1021, clamp main body; 1022, hanging tooth; 10221, first hanging tooth part; 10222, second hanging tooth part; 1023, clamp connecting piece; 1024, clamp connecting part; 1025, insulating glue; 103, tool connecting piece; 2, product; 3, reaction container; 4, electrolyte; 5, circulating pump; 6, heat exchanger; 7, power supply. DETAILED DESCRIPTION

[0038] The utility model will be explained in detail below in combination with specific embodiments. The following embodiments will help the person skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for the person skilled in the art, on the premise of not departing from the utility model concept, a number of changes and improvements can be made. These all belong to the protection scope of the utility model.

[0039] Please refer to Figures 3-10 The embodiment provides a micro-arc oxidation tool, which comprises a tool main body 101, and at least one tool clamp 102 is arranged on the tool main body 101.

[0040] The tool clamp 102 comprises a clamp main body 1021, the tool main body 101 is detachably connected with the clamp main body 1021, at least two clamp end parts are arranged on the clamp main body 1021, a hanging tooth 1022 is detachably connected on the clamp end part, the material of the clamp main body 1021 is different from that of the hanging tooth 1022, and the elasticity of the material adopted by the clamp main body 1021 is greater than that of the material adopted by the hanging tooth 1022.

[0041] In a specific embodiment, the tool main body 101 adopts an aluminum alloy material, the clamp main body 1021 adopts a titanium alloy material, and the hanging tooth 1022 adopts an aluminum alloy material.

[0042] The tool main body 101 is detachably connected with the clamp main body 1021 through a tool connecting piece 103; preferably, a clamp connecting part 1024 matched with the tool connecting piece 103 is arranged on the middle part of the clamp main body 1021, and the tool main body 101 is detachably connected with the clamp main body 1021 through the tool connecting piece 103 and the clamp connecting part 1024; optionally, the tool connecting piece 103 can be a bolt assembly, and the clamp connecting part 1024 can be a through hole.

[0043] The hanging tooth 1022 is detachably connected with the clamp main body 1021 through a clamp connecting piece 1023; preferably, through holes matched with the clamp connecting piece 1023 are arranged on the clamp end part and the hanging tooth 1022, and the clamp connecting piece 1023 can be a bolt assembly.

[0044] The outer side of the clamp body 1021 is wrapped with acid and alkali resistant material, which is located between each hanging tooth 1022, and the end of the acid and alkali resistant material is in contact with the end of the hanging tooth 1022, that is, the clamp body 1021 is wrapped with acid and alkali resistant material except the position where the replaceable hanging tooth 1022 is exposed, which is the permanent rubber-coated part; preferably, the acid and alkali resistant material can be selected from acid and alkali resistant plastic;

[0045] The outer side of the junction between the hanging tooth 1022 and the clamp body 1021 is wrapped with acid and alkali resistant insulation material, that is, the hanging tooth 1022 is wrapped with acid and alkali resistant insulation material except the tooth tip which needs to be in contact with the product 2, and the acid and alkali resistant insulation material is wrapped on the other parts (including the part in contact with the clamp body 1021 and the clamp connecting part 1023) to play the role of isolating the solution, in short, only the tooth tip of the replaceable hanging tooth 1022 is exposed; preferably, the acid and alkali resistant insulation material can be selected from detachable insulation glue or electrician's glue;

[0046] The hanging tooth 1022 can be designed according to the hanging point characteristics of the product 2, and the shape of the hanging tooth 1022 includes but is not limited to a triangle (which can be a wider triangle as shown in Figure 5 , or a narrower triangle as shown in Figure 6 , a trapezoid (as shown in Figure 7 ), or a combination shape of a triangle at one end and a trapezoid at the other end (as shown in Figure 9 , the hanging tooth 1022 includes a first hanging tooth part 10221 and a second hanging tooth part 10222, the first hanging tooth part 10221 is fixedly connected or integrally formed with the second hanging tooth part 10222, the first hanging tooth part 10221 is detachably connected with the clamp body 1021, the first hanging tooth part 10221 is in the shape of a trapezoid, and the second hanging tooth part 10222 is in the shape of a triangle), and the shapes of the hanging teeth 1022 arranged on the clamp body 1021 are the same (as shown in Figure 5 , Figure 6 , Figure 7 , Figure 9 ) or different (as shown in Figure 8 ), so that one set of tooling can match different products, and the hanging tooth 1022 can be replaced to switch similar but different products 2.

[0047] In an optional embodiment, the tooling body 101 includes a first connecting rod 1011, and the clamp body 1021 is detachably connected with the first connecting rod 1011; optionally, the first connecting rod 1011 is a vertical rod, and at least one through hole matched with the tooling connecting part 103 is formed in the first connecting rod 1011.

[0048] As shown in Figure 10As shown, in another optional embodiment, the tool body 101 comprises a first connecting rod 1011, at least one second connecting rod 1012 is arranged on the first connecting rod 1011, the first connecting rod 1011 is fixedly connected, detachably connected or integrally formed with the second connecting rod 1012, and the clamp body 1021 is detachably connected with the second connecting rod 1012; optionally, the first connecting rod 1011 is a vertical rod, and the second connecting rod 1012 is a horizontal rod, and at least one through hole matched with the tool connecting piece 103 is formed in the second connecting rod 1012.

[0049] In this embodiment, the micro-arc oxidation tool is installed in a micro-arc oxidation equipment as shown in the drawings for micro-arc oxidation production. Figure 1 As shown in the drawings, the micro-arc oxidation equipment comprises a micro-arc oxidation tool 1 (i.e. the above-mentioned micro-arc oxidation tool, used for fixing the product 2 to be processed and ensuring that it remains stable during the micro-arc oxidation process so as to be uniformly treated), a product 2 (i.e. a metal part to be processed, such as aluminum, magnesium or titanium, etc. valve metal, which will form a ceramic oxide film during the micro-arc oxidation process), a reaction vessel 3 (i.e. the core part of the micro-arc oxidation process, usually an electrolytic tank containing an electrolyte 4, the product 2 is immersed in the electrolyte 4, connected with the power supply 7 through an electrode to generate the required chemical reaction), an electrolyte 4 (i.e. a solution containing specific chemicals, which plays the role of electrolyte during the micro-arc oxidation process, the ions in the electrolyte 4 move under the action of the electric field and participate in the reaction to help form the ceramic layer), a circulating pump 5 (used to maintain the flow of the electrolyte 4, ensure uniform distribution of the electrolyte 4 in the reaction vessel 3, and maintain a certain temperature and chemical composition to ensure the uniformity and efficiency of the reaction), a heat exchanger 6 (used to control the temperature of the electrolyte 4, because a large amount of heat will be generated during the micro-arc oxidation process, the heat exchanger 6 can effectively dissipate the heat to keep the electrolyte 4 within a suitable temperature range to ensure the quality and safety of the product 2) and a power supply 7 (used to provide the necessary electric energy for the micro-arc oxidation process, which usually needs to be able to provide high voltage and large current to generate enough energy on the metal surface to initiate micro-arc discharge and related chemical reactions).

[0050] During maintenance, only the thinned and / or deformed hanging teeth 1022 need to be replaced, and the entire tool clamp 102 does not need to be replaced. When the hanging teeth 1022 need to be replaced, only the acid and alkali resistant insulating material 1025 on the surface of the hanging teeth 1022 needs to be removed, and then the hanging teeth 1022 are detached from the clamp body 1021, and the replacement of the hanging teeth 1022 is completed.

[0051] When matching different products, only the hanging teeth 1022 matched with the products need to be selected, so that one set of tools can adapt to different products.

[0052] The specific embodiments of the present application are described above. It needs to be understood that the present application is not limited to the specific embodiments described above, and various changes or modifications can be made by those skilled in the art within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A micro-arc oxidation tooling, characterized in that, The tooling jig (102) comprises a jig body (1021), the tool body (101) and the jig body (1021) are detachably connected, the jig body (1021) is provided with at least two jig end portions, the jig end portions are detachably connected with the hanging teeth (1022), the jig body (1021) and the hanging teeth (1022) are made of different materials, and the elasticity of the material adopted by the jig body (1021) is greater than that of the material adopted by the hanging teeth (1022). The jig body (1021) is made of titanium alloy material.

2. The micro-arc oxidation tooling of claim 1, wherein, The hanging teeth (1022) are made of aluminum alloy material.

3. The micro-arc oxidation tooling of claim 2, wherein, The outer side of the jig body (1021) is wrapped with acid and alkali resistant material, the acid and alkali resistant material is located between each of the hanging teeth (1022), and the end of the acid and alkali resistant material is in contact with the end of the hanging teeth (1022).

4. A micro-arc oxidation tool according to claim 3, characterized in that: The outer side of the junction between the hanging teeth (1022) and the jig body (1021) is wrapped with acid and alkali resistant insulation material.

5. The micro-arc oxidation tooling of claim 4, wherein, The shapes of each of the hanging teeth (1022) provided on the jig body (1021) are the same or different.

6. The micro-arc oxidation tooling of any one of claims 1 to 5, wherein the micro-arc oxidation tooling is a micro-arc oxidation tooling for processing a titanium alloy. The tool body (101) comprises a first connecting rod (1011), and the jig body (1021) is detachably connected with the first connecting rod (1011).

7. The micro-arc oxidation tooling of claim 6, wherein, The tool body (101) comprises a first connecting rod (1011), and the jig body (1021) is detachably connected with the second connecting rod (1012).

8. The micro-arc oxidation tooling of claim 6, wherein, The shape of the hanging teeth (1022) is triangular, trapezoidal or a combination shape of one end triangular and the other end trapezoidal.

9. The micro-arc oxidation tooling of claim 6, wherein, The tool body (101) is detachably connected with the jig body (1021) through a tool connecting piece (103), and the hanging teeth (1022) are detachably connected with the jig body (1021) through a jig connecting piece (1023).

10. The micro-arc oxidation tooling of claim 6, wherein, ​

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