Assembly structure of alloy workpiece and clamp for local micro-arc oxidation

Abstract

The invention discloses an assembly structure of an alloy workpiece and a clamp for local micro-arc oxidation. The assembly structure comprises a workpiece body, the workpiece body is internally provided with a cavity, and the two ends of the cavity are opened to form a first pipe opening and a first notch respectively; an opening is formed in one side of the first liquid inlet clamp, the opening side of the first liquid inlet clamp is connected with the outer side of the workpiece body and corresponds to the first pipe opening of the cavity, and a first liquid inlet hole, a first air inlet hole and a first electrode inlet hole are formed in the other side of the first liquid inlet clamp; a first groove body is formed in one side of the liquid outlet clamp, the opening side of the first groove body is connected with the outer side of the workpiece body and corresponds to the first groove opening of the cavity, and a first liquid outlet hole is formed in the other side of the first groove body. According to the assembly structure of the alloy workpiece and the clamp for local micro-arc oxidation, local micro-arc oxidation of the workpiece body can be directly achieved, other positions which do not participate in micro-arc oxidation still have electrical conductivity after an oxidation film is locally formed without secondary machining, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of micro-arc oxidation of alloy workpieces, and in particular to an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation. Background Art

[0002] Micro-arc oxidation is a metal surface treatment method that generates an oxide film through micro-arc discharge to enhance the hardness, wear resistance, corrosion resistance and insulation of the metal surface. At present, when most production lines perform micro-arc oxidation on alloy workpieces, in order to facilitate processing, the entire workpiece is usually placed in the potion tank of the micro-arc oxidation equipment for micro-arc oxidation, and then the workpiece surface is polished by laser and other technologies to remove the oxide film in some areas so that the workpiece maintains the conductive effect. Therefore, this micro-arc oxidation processing method requires secondary processing, resulting in a high processing cost.

[0003] Therefore the prior art still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation, aiming to solve the problem that the alloy workpiece in the prior art needs to undergo secondary grinding after micro-arc oxidation processing, resulting in high processing costs.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: In a first aspect, an embodiment of the present invention provides an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation, comprising: A workpiece body, wherein a cavity is provided in the workpiece body, and two ends of the cavity are respectively opened to form a first pipe opening and a first notch; A first liquid inlet fixture, one side of which is open, the open side of which is connected to the outer side of the workpiece body and corresponds to the first pipe opening of the cavity, and the other side of which is provided with a first liquid inlet hole, a first air inlet hole and a first electrode inlet hole; A liquid outlet fixture is provided with a first slot body on one side of the liquid outlet fixture, an opening side of the first slot body is connected to the outer side of the workpiece body and corresponds to the first slot of the cavity, and a first liquid outlet hole is provided on the other side of the first slot body.

[0006] As a further improved technical solution, a first guide tube is provided in the first liquid inlet fixture, one end of the first guide tube is connected and communicated with the first electrode inlet hole, and the other end of the first guide tube extends toward the inside of the cavity.

[0007] As a further improved technical solution, the first liquid inlet hole, the first air inlet hole and the first electrode inlet hole are respectively arranged on a side of the first liquid inlet fixture opposite to the first pipe opening.

[0008] As a further improved technical solution, the first liquid inlet hole, the first air inlet hole and the first electrode inlet hole are respectively provided in plurality and are evenly distributed on the side of the first liquid inlet fixture opposite to the first pipe opening.

[0009] As a further improved technical solution, a first liquid inlet conduit communicating with the first liquid inlet hole and a first air inlet conduit communicating with the first air inlet hole are provided on the outer side of the first liquid inlet fixture.

[0010] As a further improved technical solution, the assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation further includes: A second liquid inlet fixture; a second pipe opening, a third pipe opening and a second notch are further provided on the side of the cavity, one side of the second liquid inlet fixture is open, the open side of the second liquid inlet fixture is connected to the outer side of the workpiece body and corresponds to the first pipe opening and the second pipe opening of the cavity, and the other side of the second liquid inlet fixture is provided with a second liquid inlet hole, a second air inlet hole, a second electrode inlet hole, a third liquid inlet hole, a third air inlet hole and a third electrode inlet hole; The liquid outlet fixture is provided with a second slot body on one side of the first slot body, the opening side of the second slot body is connected to the outer side of the workpiece body and corresponds to the second slot of the cavity, and the other side of the second slot body is provided with a second liquid outlet hole.

[0011] As a further improved technical solution, the first pipe opening and the second pipe opening are respectively connected to the first slot, and the third pipe opening is connected to the second slot.

[0012] As a further improved technical solution, a second guide tube and a third guide tube are provided in the second liquid inlet fixture, one end of the second guide tube is connected and communicated with the second electrode inlet hole, and the other end of the second guide tube extends toward the interior of the cavity; one end of the third guide tube is connected and communicated with the third electrode inlet hole, and the other end of the third guide tube extends toward the interior of the cavity.

[0013] As a further improved technical solution, the outer side of the second liquid inlet clamp is provided with a second liquid inlet duct connected to the second liquid inlet hole, a second air inlet duct connected to the second air inlet hole, a third liquid inlet duct connected to the third liquid inlet hole and a third air inlet duct connected to the third air inlet hole.

[0014] As a further improved technical solution, sealing rings are respectively provided between the first liquid inlet fixture, the second liquid inlet fixture and the liquid outlet fixture and the workpiece body.

[0015] Compared with the prior art, the embodiments of the present invention have the following advantages: An embodiment of the present invention provides an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation, comprising: a workpiece body, a cavity is provided in the workpiece body, and both ends of the cavity are opened to form a first pipe opening and a first slot; a first liquid inlet fixture, one side of the first liquid inlet fixture is open, the open side of the first liquid inlet fixture is connected to the outer side of the workpiece body and corresponds to the first pipe opening of the cavity, and the other side of the first liquid inlet fixture is provided with a first liquid inlet hole, a first air inlet hole and a first electrode inlet hole; a liquid outlet fixture, one side of the liquid outlet fixture is provided with a first slot body, the open side of the first slot body is connected to the outer side of the workpiece body and corresponds to the first slot of the cavity, and the other side of the first slot body is provided with a first liquid outlet hole. In the present invention, after the workpiece body is assembled with the first liquid inlet fixture and the liquid outlet fixture, the liquid used for micro-arc oxidation can be introduced into the cavity where the oxide film is to be formed through the first liquid inlet hole, and can flow out through the first liquid outlet hole, and the electrode used for micro-arc oxidation can be extended into the cavity through the first electrode inlet hole to react with the liquid to form an oxide film. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation provided by the present invention can enable the workpiece body to directly achieve local micro-arc oxidation, and can achieve that other positions that do not participate in micro-arc oxidation are still conductive after the oxide film is locally formed without secondary processing, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An exploded view of an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation provided by the present invention; Figure 2 A three-dimensional structural schematic diagram of an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation provided by the present invention; Figure 3 It is a schematic diagram of the first three-dimensional structure of the workpiece body in the present invention; Figure 4 It is a schematic diagram of a second three-dimensional structure of the workpiece body in the present invention; Figure 5 is a schematic diagram of a first three-dimensional structure of the first liquid inlet fixture in the present invention; Figure 6 is a schematic diagram of a second three-dimensional structure of the first liquid inlet fixture in the present invention; Figure 7 It is a schematic diagram of the first three-dimensional structure of the liquid outlet fixture of the present invention; Figure 8 is a schematic diagram of a second three-dimensional structure of the liquid outlet fixture of the present invention; Fig. 9 is a schematic diagram of a first three-dimensional structure of the second liquid inlet fixture in the present invention; Fig.10 It is a schematic diagram of the second three-dimensional structure of the second liquid inlet fixture in the present invention.

[0017] In the figure: 1, workpiece body; 101, cavity; 102, first pipe opening; 103, first notch; 104, second pipe opening; 105, third pipe opening; 106, second notch; 107, sealing groove; 2, first liquid inlet fixture; 201, first liquid inlet hole; 202, first air inlet hole; 203, first electrode inlet hole; 204, first guide tube; 205, first liquid inlet conduit; 206, first air inlet conduit; 3, liquid outlet fixture; 301, first slot; 302, first A liquid outlet; 303, a second tank body; 304, a second liquid outlet; 4, a second liquid inlet fixture; 401, a second liquid inlet; 402, a second air inlet; 403, a second electrode inlet; 404, a third liquid inlet; 405, a third air inlet; 406, a third electrode inlet; 407, a second guide tube; 408, a third guide tube; 409, a second liquid inlet conduit; 410, a second air inlet conduit; 411, a third liquid inlet conduit; 412, a third air inlet conduit; 5, an electrode. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] Micro-arc oxidation is a metal surface treatment method that generates an oxide film through micro-arc discharge to enhance the hardness, wear resistance, corrosion resistance and insulation of the metal surface. At present, when most production lines perform micro-arc oxidation on alloy workpieces, in order to facilitate processing, the entire workpiece is usually placed in the potion tank of the micro-arc oxidation equipment for micro-arc oxidation, and then the workpiece is taken out and polished by laser and other technologies to remove the oxide film in some areas so that the workpiece maintains the conductive effect. This micro-arc oxidation processing method requires secondary processing, resulting in a high processing cost. Therefore, the present invention provides the following embodiments to solve the above technical problems.

[0020] Example: like Figure 1-Figure 10As shown. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation includes: a workpiece body 1, a cavity 101 is provided in the workpiece body 1, and the two ends of the cavity 101 are respectively opened to form a first pipe mouth 102 and a first notch 103; a first liquid inlet fixture 2, one side of the first liquid inlet fixture 2 is open, the open side of the first liquid inlet fixture 2 is connected to the outside of the workpiece body 1 and corresponds to the first pipe mouth 102 of the cavity 101, and the other side of the first liquid inlet fixture 2 is provided with a first liquid inlet hole 201, a first air inlet hole 202 and a first electrode inlet hole 203; a liquid outlet fixture 3, one side of the liquid outlet fixture 3 is provided with a first slot 301, the open side of the first slot 301 is connected to the outside of the workpiece body 1 and corresponds to the first notch 103 of the cavity 101, and the other side of the first slot 301 is provided with a first liquid outlet hole 302.

[0021] like Figure 1-Figure 8As shown, in this embodiment, the assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation includes a workpiece body 1, a first liquid inlet fixture 2 and a liquid outlet fixture 3; wherein the workpiece body 1 has a built-in cavity 101, and the cavity 101 can be of any shape, that is, it can be a regular shape or an irregular shape, and the cavity 101 is provided with two openings, which are a first pipe opening 102 and a first notch 103, the first pipe opening 102 is used for liquid inlet, and the first notch 103 is used for liquid outlet; one side of the first liquid inlet fixture 2 is open, and the first liquid inlet fixture 2 The opening side is connected to the outer side of the workpiece body 1 and corresponds to the first pipe opening 102 of the cavity 101, and the other side of the first liquid inlet fixture 2 is provided with a first liquid inlet hole 201, a first air inlet hole 202 and a first electrode inlet hole 203. When the liquid used for micro-arc oxidation flows into the first liquid inlet fixture 2 through the first liquid inlet hole 201, it will continue to flow through the first pipe opening 102 into the cavity 101 and the first notch 103. The first air inlet hole 202 is used for air intake, providing air pressure to propel the liquid to flow and fully contact with the inner wall of the cavity 101. The first electrode inlet hole 203 is used to guide the electrode 5 into the cavity 101; a first slot 301 is provided on one side of the liquid outlet fixture 3, and the opening side of the first slot 301 is connected to the outside of the workpiece body 1 and corresponds to the first slot 103 of the cavity 101, and a first liquid outlet hole 302 is provided on the other side of the first slot 301. The first liquid inlet fixture 2 and the liquid outlet fixture 3 are respectively arranged at the two openings of the cavity 101 to make the cavity 101 a closed oxidation reaction space, and the liquid in the first slot 103 will be discharged from the first slot 103. The liquid is discharged from the first liquid outlet 302 in a trough body 301; in the present invention, after the workpiece body 1 is assembled with the first liquid inlet fixture 2 and the liquid outlet fixture 3, the local micro-arc oxidation inside the workpiece body 1 can be completed through the auxiliary effect of the first liquid inlet fixture 2 and the liquid outlet fixture 3, the liquid used for micro-arc oxidation can be introduced into the cavity 101 where the oxide film is to be formed through the first liquid inlet hole 201, and can flow out through the first liquid outlet hole 302, and the electrode used for micro-arc oxidation can pass through the first electrode inlet hole 203 and extend into the cavity 101 to react with the liquid to form an oxide film. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation provided by the present invention can enable the workpiece body 1 to directly realize local micro-arc oxidation, and other positions that do not participate in micro-arc oxidation can still be conductive after the local oxide film is formed without secondary processing, thereby reducing production costs.

[0022] As a further solution, a first guide tube 204 is provided in the first liquid inlet fixture 2, one end of the first guide tube 204 is connected and communicated with the first electrode inlet hole 203, and the other end of the first guide tube 204 extends toward the interior of the cavity 101. Specifically, the first liquid inlet fixture 2, the first guide tube 204 and the liquid outlet fixture 3 are all insulating objects, the outlet of the first guide tube 204 is toward the center of the cavity 101, and the first guide tube 204 is used to guide the electrode 5 to avoid the electrode 5 from contacting the inner side wall of the cavity 101.

[0023] As a further solution, the first liquid inlet hole 201, the first air inlet hole 202 and the first electrode inlet hole 203 are respectively arranged on the side of the first liquid inlet fixture 2 opposite to the first tube mouth 102. Specifically, the first air inlet hole 202 is used to apply air pressure to the cavity 101, so the first air inlet hole 202 is arranged on the side opposite to the first tube mouth 102, so that the gas is directly blown toward the first tube mouth 102, thereby accelerating the flow rate of the medicine in the first tube mouth 102, and allowing the medicine to fully contact the inside of the cavity 101, accelerating the process of micro-arc oxidation, and improving production efficiency; the first electrode inlet hole 203 is arranged on the side opposite to the first tube mouth 102 so that the electrode 5 can directly enter the cavity 101 through the first tube mouth 102 without bending, which is convenient for putting in and taking out the electrode.

[0024] In the present embodiment, the first liquid inlet hole 201, the first air inlet hole 202 and the first electrode inlet hole 203 are respectively provided in plurality and are evenly distributed on the side of the first liquid inlet fixture 2 opposite to the first pipe mouth 102; the first liquid inlet hole 201, the first air inlet hole 202 and the first electrode inlet hole 203 in the present embodiment can be provided in single or multiple form, with no limit on the number, which can be adjusted appropriately according to demand.

[0025] As a further solution, a first liquid inlet conduit 205 communicating with the first liquid inlet hole 201 and a first air inlet conduit 206 communicating with the first air inlet hole 202 are provided on the outer side of the first liquid inlet fixture 2. Specifically, one end of the first liquid inlet conduit 205 is connected and communicated with the first liquid inlet hole 201, and the other end of the first liquid inlet conduit 205 is used to communicate with an external water pump; one end of the first air inlet conduit 206 is connected and communicated with the first air inlet hole 202, and the other end of the first air inlet conduit 206 is used to communicate with an external air pump or other air transmission equipment.

[0026] like Fig. 9 and Fig.10As shown, as a further solution, the assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation also includes: a second liquid inlet fixture 4; the side of the cavity 101 is also provided with a second pipe opening 104, a third pipe opening 105 and a second slot 106, one side of the second liquid inlet fixture 4 is open, the open side of the second liquid inlet fixture 4 is connected to the outside of the workpiece body 1 and corresponds to the first pipe opening 102 and the second pipe opening 104 of the cavity 101, and the other side of the second liquid inlet fixture 4 is provided with a second liquid inlet hole 401, a second air inlet hole 402, a second electrode inlet hole 403, a third liquid inlet hole 404, a third air inlet hole 405 and a third electrode inlet hole 406. The liquid outlet fixture 3 is provided with a second slot body 303 on one side of the first slot body 301, the opening side of the second slot body 303 is connected to the outside of the workpiece body 1 and corresponds to the second slot 106 of the cavity 101, and the second liquid outlet hole 304 is provided on the other side of the second slot body 303. Specifically, the second pipe opening 104, the third pipe opening 105 and the second slot 106 are also provided on the side of the cavity 101, the second pipe opening 104 and the third pipe opening 105 are used to guide the liquid medicine into the cavity 101, the second slot 106 and the second liquid outlet hole 304 are used to discharge the liquid medicine from the cavity 101, and the opening side of the second liquid inlet fixture 4 is connected to the second pipe opening 104 and the third pipe opening 105 at the same time, that is, the liquid medicine flowing into the second liquid inlet fixture 4 can be diverted to the second pipe opening 104 and the third pipe opening 105. Further, the medicine flowing into the second liquid inlet hole 401 and the third liquid inlet hole 404 in the second liquid inlet fixture 4 is mixed and divided into the second pipe opening 104 and the third pipe opening 105. The second air inlet hole 402 is arranged opposite to the second pipe opening 104 so as to accelerate the flow speed of the medicine in the second pipe opening 104 and make the medicine in the second pipe opening 104 fully contact with the inner wall of the second pipe opening 104. The third air inlet hole 405 is arranged opposite to the third pipe opening 105 so as to accelerate the flow speed of the medicine in the third pipe opening 105 and make the medicine in the third pipe opening 105 fully contact with the inner wall of the third pipe opening 105. The second electrode inlet hole 403 is arranged opposite to the second pipe opening 104 so as to facilitate the electrode in the second electrode inlet hole 403 to directly extend into the second pipe opening 104. The third electrode inlet hole 406 is arranged opposite to the third pipe opening 105 so as to facilitate the electrode 5 in the third electrode inlet hole 406 to directly extend into the third pipe opening 105.

[0027] In this embodiment, the first pipe opening 102 and the second pipe opening 104 are respectively connected to the first slot 103, and the third pipe opening 105 is connected to the second slot 106. Specifically, the cavity 101 includes two parts, one part is the communication structure between the first pipe opening 102 and the second pipe opening 104 and the first slot 103, and the other part is the communication structure between the third pipe opening 105 and the second slot 106. The number of parts of the cavity 101 in this embodiment includes but is not limited to two parts, and can be three parts or four parts, etc. It is only necessary to open a liquid inlet and a liquid outlet on the side of each cavity 101, and assemble a corresponding liquid inlet fixture. Each part of the cavity 101 can share one liquid outlet fixture 3, and it is only necessary to add a liquid outlet slot and a liquid outlet hole on the liquid outlet fixture 3.

[0028] As a further solution, a second guide tube 407 and a third guide tube 408 are provided in the second liquid inlet fixture 4, one end of the second guide tube 407 is connected and communicated with the second electrode inlet hole 403, and the other end of the second guide tube 407 extends toward the interior of the cavity 101; one end of the third guide tube 408 is connected and communicated with the third electrode inlet hole 406, and the other end of the third guide tube 408 extends toward the interior of the cavity 101. Specifically, the outlet of the second guide tube 407 is toward the center of the cavity 101, and the second guide tube 407 is used to guide the electrode 5 to avoid contact between the electrode and the inner side wall of the cavity 101.

[0029] The outlet of the third guide tube 408 faces the center of the second tube opening 104 and the cavity 101 , and the third guide tube 408 is used to guide the electrode to avoid the electrode 5 from contacting the inside of the third tube opening 105 and the inner side wall of the cavity 101 .

[0030] As a further solution, the outer side of the second liquid inlet fixture 4 is provided with a second liquid inlet conduit 409 communicating with the second liquid inlet hole 401, a second air inlet conduit 410 communicating with the second air inlet hole 402, a third liquid inlet conduit 411 communicating with the third liquid inlet hole 404, and a third air inlet conduit 412 communicating with the third air inlet hole 405. Specifically, one end of the second liquid inlet conduit 409 is connected and communicated with the second liquid inlet hole 401, and the other end of the second liquid inlet conduit 409 is used to communicate with an external water pump; one end of the second air inlet conduit 410 is connected and communicated with the second air inlet hole 402, and the other end of the second air inlet conduit 410 is used to communicate with an external air pump or other gas transmission equipment. One end of the third liquid inlet conduit 411 is connected to and communicated with the third liquid inlet hole 404, and the other end of the third liquid inlet conduit 411 is used to communicate with an external water pump; one end of the third air inlet conduit 412 is connected to and communicated with the third air inlet hole 405, and the other end of the third air inlet conduit 412 is used to communicate with an external air pump or other air transmission equipment.

[0031] At the same time, in the present embodiment, a partition (not shown) is further provided in the second liquid inlet fixture 4, and the partition is used to divide the second liquid inlet fixture 4 into two spaces, and one part of the space is connected to the second pipe opening 104, and the other part of the space is connected to the third pipe opening 105. Therefore, the second liquid inlet pipe and the third liquid inlet pipe can respectively pass into liquid medicines of different components, so as to generate different oxide films in various parts of the cavity 101 according to the specific requirements of the workpiece body 1.

[0032] Furthermore, the first liquid outlet hole 302 and the second liquid outlet hole 304 of the liquid outlet fixture 3 in this embodiment circulate the liquid medicine back to the water pump (not shown) through the water pipe (not shown), and the water pipe dissipates heat through the heat sink (not shown), and the heat sink is an existing device, such as a water tank, and the water pipe passes through the water tank to dissipate heat through the cold water in the water tank. After the liquid medicine is refluxed to the water pump after heat dissipation, the water pump re-introduces the liquid medicine into the first liquid inlet conduit 205, the second liquid inlet conduit 409 and the third liquid inlet conduit 411 respectively; if the liquid medicine in the third liquid inlet conduit 411 is inconsistent with the liquid medicine in the first liquid inlet conduit 205 and the second liquid inlet conduit 409, the third liquid inlet conduit 411 and the second liquid outlet hole 304 are simultaneously connected to another water pump and the heat sink.

[0033] In this embodiment, sealing rings (not shown) are respectively provided between the first liquid inlet fixture 2, the second liquid inlet fixture 4 and the liquid outlet fixture 3 and the workpiece body 1. Specifically, a sealing groove 107 is provided on the workpiece body 1, and the sealing groove 107 is used to install the sealing ring. The size and shape of the sealing ring can be set according to the opening shape and size of the first notch 103 and the second notch 106. By adding the sealing ring, the liquid medicine can be prevented from penetrating into the surface of the workpiece body 1, and the liquid medicine can be prevented from corroding the surface of the workpiece body 1.

[0034] Meanwhile, the first liquid inlet fixture 2 , the second liquid inlet fixture 4 and the liquid outlet fixture 3 are respectively detachably connected to the workpiece body 1 , for example, by screw connection, clamping or bonding, so as to facilitate subsequent disassembly and assembly.

[0035] In summary, an embodiment of the present invention provides an assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation, including: a workpiece body 1, a cavity 101 is provided in the workpiece body 1, and the two ends of the cavity 101 are respectively opened to form a first pipe mouth 102 and a first slot 103; a first liquid inlet fixture 2, one side of the first liquid inlet fixture 2 is open, the open side of the first liquid inlet fixture 2 is connected to the outer side of the workpiece body 1 and corresponds to the first pipe mouth 102 of the cavity 101, and the other side of the first liquid inlet fixture 2 is provided with a first liquid inlet hole 201, a first air inlet hole 202 and a first electrode inlet hole 203; a liquid outlet fixture 3, one side of the liquid outlet fixture 3 is provided with a first slot body 301, the open side of the first slot body 301 is connected to the outer side of the workpiece body 1 and corresponds to the first slot 103 of the cavity 101, and the other side of the first slot body 301 is provided with a first liquid outlet hole 302. In the present invention, after the workpiece body 1 is assembled with the first liquid inlet fixture 2 and the liquid outlet fixture 3, the liquid used for micro-arc oxidation can be introduced into the cavity 101 where the oxide film is to be formed through the first liquid inlet hole 201, and can flow out through the first liquid outlet hole 302, and the electrode used for micro-arc oxidation can be extended into the cavity 101 through the first electrode inlet hole 203 to react with the liquid to form an oxide film. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation provided by the present invention can enable the workpiece body 1 to directly achieve local micro-arc oxidation, and other positions not involved in micro-arc oxidation can still be conductive after the oxide film is locally formed without secondary processing, thereby reducing production costs.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] Of course, the description of the above-mentioned embodiments of the present invention is relatively detailed, but it cannot be understood as limiting the scope of protection of the present invention. The present invention may also have many other implementation methods. Based on this implementation method, other implementation methods obtained by ordinary technicians in this field without any creative work all belong to the scope of protection of the present invention. The scope of protection of the present invention shall be based on the attached claims.

Claims

1. An assembly structure of an alloy workpiece and a fixture for local micro-arc oxidation, characterized in that: include: A workpiece body, wherein a cavity is provided in the workpiece body, and two ends of the cavity are respectively opened to form a first pipe opening and a first notch; A first liquid inlet fixture, one side of which is open, the open side of which is connected to the outer side of the workpiece body and corresponds to the first pipe opening of the cavity, and the other side of which is provided with a first liquid inlet hole, a first air inlet hole and a first electrode inlet hole; A liquid outlet fixture is provided with a first slot body on one side of the liquid outlet fixture, an opening side of the first slot body is connected to the outer side of the workpiece body and corresponds to the first slot of the cavity, and a first liquid outlet hole is provided on the other side of the first slot body.

2. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 1, characterized in that: A first guide tube is disposed in the first liquid inlet fixture, one end of the first guide tube is connected to and communicates with the first electrode inlet hole, and the other end of the first guide tube extends toward the interior of the cavity.

3. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 1, characterized in that: The first liquid inlet hole, the first air inlet hole and the first electrode inlet hole are respectively arranged on a side of the first liquid inlet fixture opposite to the first pipe opening.

4. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 3, characterized in that: The first liquid inlet hole, the first air inlet hole and the first electrode inlet hole are respectively provided in plurality and are evenly distributed on a side of the first liquid inlet fixture opposite to the first pipe opening.

5. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 3, characterized in that: A first liquid inlet conduit communicating with the first liquid inlet hole and a first air inlet conduit communicating with the first air inlet hole are provided on the outer side of the first liquid inlet fixture.

6. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 1, characterized in that: Also includes: A second liquid inlet fixture; a second pipe opening, a third pipe opening and a second notch are further provided on the side of the cavity, one side of the second liquid inlet fixture is open, the open side of the second liquid inlet fixture is connected to the outer side of the workpiece body and corresponds to the first pipe opening and the second pipe opening of the cavity, and the other side of the second liquid inlet fixture is provided with a second liquid inlet hole, a second air inlet hole, a second electrode inlet hole, a third liquid inlet hole, a third air inlet hole and a third electrode inlet hole; The liquid outlet fixture is provided with a second slot body on one side of the first slot body, the opening side of the second slot body is connected to the outer side of the workpiece body and corresponds to the second slot of the cavity, and the other side of the second slot body is provided with a second liquid outlet hole.

7. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 6, characterized in that: The first pipe opening and the second pipe opening are respectively connected to the first slot, and the third pipe opening is connected to the second slot.

8. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 7, characterized in that: A second guide tube and a third guide tube are provided in the second liquid inlet fixture, one end of the second guide tube is connected and communicated with the second electrode inlet hole, and the other end of the second guide tube extends toward the interior of the cavity; one end of the third guide tube is connected and communicated with the third electrode inlet hole, and the other end of the third guide tube extends toward the interior of the cavity.

9. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 6, characterized in that: A second liquid inlet conduit communicating with the second liquid inlet hole, a second air inlet conduit communicating with the second air inlet hole, a third liquid inlet conduit communicating with the third liquid inlet hole, and a third air inlet conduit communicating with the third air inlet hole are provided on the outer side of the second liquid inlet fixture.

10. The assembly structure of the alloy workpiece and the fixture for local micro-arc oxidation according to claim 6, characterized in that: Sealing rings are respectively provided between the first liquid inlet fixture, the second liquid inlet fixture, the liquid outlet fixture and the workpiece body.

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