A micro-arc oxidation device for the inner wall of titanium alloy pipe

Abstract

The invention discloses a micro-arc oxidation device for the inner wall of a titanium alloy pipe, comprising a device shell and a reaction chamber, wherein the device shell is a hollow box body with an upper opening and a device top cover, and the reaction chamber is installed inside the device shell, and the outer wall surface thereof is spaced apart from the inner wall surface of the device shell; through holes are provided at four right angles of the bottom surface of the device shell, and a suction cup base with a suction cup facing outward is movably connected at each through hole, and a bidirectional screw rod is provided on the upper side of the suction cup base, and the bidirectional screw rod penetrates the device shell from the outside and extends inward, and its extension terminal is rotatably connected to the outer wall surface of the reaction chamber; two sliding blocks are symmetrically sleeved on the bidirectional screw rod, and the two sliding blocks slide close to or away from each other as the bidirectional screw rod rotates. The height of each corner of the micro-arc oxidation device can be adjusted to maintain the balance of the micro-arc oxidation device, avoid overflow of electrolyte, and affect the oxidation effect.

Description

Technical Field

[0001] The invention relates to the technical field of micro-arc oxidation, and in particular to a micro-arc oxidation device for the inner wall of a titanium alloy pipe. Background Art

[0002] Micro-arc oxidation, also known as plasma electrolytic oxidation, micro-plasma oxidation, etc., is a process that uses a combination of electrolyte and corresponding electrical parameters to generate instantaneous high temperature and high pressure on the surface of metals such as aluminum, magnesium, titanium and their alloys to grow a ceramic film layer mainly composed of matrix metal oxides. The ceramic layer can achieve corrosion resistance, high insulation, high hardness and other properties. When in use, the micro-arc oxidation device needs to be kept horizontal to avoid overflow of the electrolyte and affect the oxidation effect. Summary of the invention

[0003] The object of the present invention is to provide a micro-arc oxidation device for the inner wall of a titanium alloy pipe, wherein the height of each corner of the micro-arc oxidation device can be adjusted to maintain the balance of the micro-arc oxidation device and avoid overflow of electrolyte to affect the oxidation effect.

[0004] To achieve the above object, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A titanium alloy tube inner wall micro-arc oxidation device, comprising a device shell and a reaction chamber, characterized in that: the device shell is a hollow box body with an upper opening and a device top cover, and the reaction chamber is installed inside the device shell, and the outer wall surface of the reaction chamber is spaced from the inner wall surface of the device shell;

[0006] Through holes are provided at four right angles on the bottom surface of the device shell, and a suction cup base with a suction cup facing outward is movably connected at each through hole, and a bidirectional screw rod is provided on the upper side of the suction cup base, and the bidirectional screw rod penetrates the device shell from the outside and extends inward, and its extension terminal is rotatably connected to the outer wall of the reaction chamber;

[0007] Two sliding blocks are symmetrically sleeved on the bidirectional screw rod, and the two sliding blocks slide closer to or away from each other as the bidirectional screw rod rotates. The bottom ends of both are rotatably connected to support rods, and the movable ends of the two support rods are rotatably connected to the upper end of the suction cup base; a sliding rod with two ends fixedly connected to the inner side surface of the device shell and the outer side surface of the reaction chamber respectively is also provided on the upper side of the bidirectional screw rod, and a connecting sleeve rod is provided on the upper ends of the two sliding blocks, and the movable ends of the two connecting sleeve rods are slidably connected to the sliding rod, and two tightening springs are sleeved on the sliding rod, and the two tightening springs are respectively located on the opposite sides of the two connecting sleeve rods.

[0008] As a preferred solution of the micro-arc oxidation device for the inner wall of a titanium alloy tube described in the present invention, a knob is provided at the end of the bidirectional lead screw located outside the device housing.

[0009] As a preferred embodiment of the micro-arc oxidation device for the inner wall of a titanium alloy pipe described in the present invention, a water pipeline is sleeved on the outside of the reaction chamber, two ports of the water pipeline are distributed up and down, and both ends pass through the device casing and extend to the outside of the device casing, the upper port of the water pipeline is the water inlet, a screw-on cover is screwed on the water inlet, and the lower port of the water pipeline is the water outlet, and a valve is provided on the water outlet.

[0010] As a preferred solution of the micro-arc oxidation device for the inner wall of a titanium alloy pipe described in the present invention, the water supply pipeline is a spiral structure sleeved on the outside of the reaction chamber.

[0011] As a preferred solution of the micro-arc oxidation device for the inner wall of a titanium alloy tube described in the present invention, an observation window is provided on the outer shell of the device.

[0012] As a preferred solution of the micro-arc oxidation device for the inner wall of a titanium alloy tube described in the present invention, a tube clamp is fixedly provided on the lower side of the top cover of the device.

[0013] As a preferred solution of the micro-arc oxidation device for the inner wall of a titanium alloy tube described in the present invention, a limit block to prevent it from falling out is fixedly provided on the side surface of the top end of the suction cup base.

[0014] Compared with the prior art, the advantages of the present invention are: the height of each corner of the micro-arc oxidation device can be adjusted to keep the reaction chamber in a horizontal position at all times, thereby avoiding overflow of the electrolyte and affecting the oxidation effect; by setting a water supply pipeline with a spiral structure, the reaction chamber is fully cooled and the heat energy is effectively recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a micro-arc oxidation device for the inner wall of a titanium alloy pipe according to the present invention;

[0016] Figure 2 A schematic diagram of the internal structure of a device shell in a micro-arc oxidation device for the inner wall of a titanium alloy tube according to the present invention;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0019] Figure 5 It is a structural schematic diagram of a top cover of a device in a micro-arc oxidation device for inner wall of a titanium alloy pipe according to the present invention;

[0020] In the figure: 1. device housing; 2. observation window; 3. suction cup base; 4. valve; 5. water outlet; 6. reaction chamber; 7. water delivery pipeline; 8. tightening spring; 9. connecting sleeve rod; 10. sliding block; 11. two-way screw rod; 12. support rod; 13. sliding rod; 14. knob; 15. limit block; 16. screw-on cover; 17. water inlet; 18. device top cover; 19. pipe clamp. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention provides a micro-arc oxidation device for the inner wall of a titanium alloy pipe. The height of each corner of the micro-arc oxidation device can be adjusted to keep the reaction chamber in a horizontal position at all times, thereby avoiding overflow of the electrolyte and affecting the oxidation effect. By setting a water supply pipeline with a spiral structure, the reaction chamber is fully cooled and the heat energy is effectively recovered.

[0023] Figure 1-Figure 5 The present invention shows an embodiment of a micro-arc oxidation device for the inner wall of a titanium alloy tube. Figure 1-Figure 5 In this embodiment, a titanium alloy tube inner wall micro-arc oxidation device is provided, and its main body includes a shell 1 and a reaction chamber 6.

[0024] For details, please refer to Figure 1-Figure 5 The device shell 1 is a hollow box body with an upper opening and a device top cover 18, and an observation window 2 is provided on the front side thereof to facilitate observation of the internal situation. A pipe clamp 19 is fixedly provided on the lower side of the device top cover 18. After the aluminum alloy pipe is engaged with the pipe clamp 19, the device top cover 18 and the device shell 1 are closed to place the aluminum alloy pipe inside the reaction chamber 6; the reaction chamber 6 is installed inside the device shell 1, and a spacing is maintained between the outer wall surface of the device shell 1 and the inner wall surface of the device shell 1. A water pipe 7 with a spiral structure is sleeved on the outer side of the reaction chamber 6, and both the upper and lower ports penetrate the device shell 1 and extend to the outside of the device shell 1. The upper side port of the water pipe 7 is a water inlet 17, and a screw-on cover 16 is screwed on the water inlet 17. The lower side port of the water pipe 7 is a water outlet 5, and a valve 4 is provided on the water outlet 5. The reaction chamber 6 is fully cooled through the water pipe 7.

[0025] Through holes are provided at four right angles on the bottom surface of the device shell 1, and a suction cup base 3 with the suction cup facing outward is movably connected at each through hole, and an anti-slip limit block 15 is fixedly provided on the side of the top of the suction cup base 3 to prevent the suction cup base 3 from slipping out from the inside of the device shell 1 when adjusting the height; a bidirectional screw rod 11 is provided on the upper side of the suction cup base 3, and the bidirectional screw rod 11 penetrates the device shell 1 from the outside and extends inward, and its extended terminal is rotatably connected to the outer wall of the reaction chamber 6, and a knob 14 is provided at the end located on the outside of the device shell 1 to facilitate the rotation of the bidirectional screw rod 11.

[0026] Two sliding blocks 10 are symmetrically sleeved on the bidirectional screw rod 11. The two sliding blocks 10 slide closer to or away from each other as the bidirectional screw rod 11 rotates. The bottom ends of both are rotatably connected to the support rod 12 through a rotating shaft. The movable ends of the two support rods 12 are rotatably connected to the upper end of the suction cup base 3 through a rotating shaft; a sliding rod 13 is also provided on the upper side of the bidirectional screw rod 11, and its two ends are respectively fixedly connected to the inner side surface of the device housing 1 and the outer side surface of the reaction chamber 6. A connecting sleeve rod 9 is provided on the upper ends of the two sliding blocks 10. The movable ends of the two connecting sleeve rods 9 are slidably connected to the sliding rod 13. Two tightening springs 8 are sleeved on the sliding rod 13, and the two tightening springs 8 are respectively located on the opposite sides of the two connecting sleeve rods 9.

[0027] Combination Figure 1-Figure 5 , a micro-arc oxidation device for the inner wall of a titanium alloy pipe according to the present embodiment, and its specific implementation process is as follows: after the present invention is installed, the device shell 1 is placed on the ground. When the height needs to be adjusted to keep it horizontal, the knob 14 is turned to drive the bidirectional screw rod 11 to rotate, so that the two sliding blocks 10 can move relative to each other. Under the action of the support rod 12, the suction cup base 3 is adjusted to ensure that the reaction chamber 6 remains horizontal during use. When the sliding block 10 moves, the connecting sleeve rod 9 slides along the sliding rod 13; when a cooling operation is required, the screw-on cover 16 is opened, and cold water is added to the water delivery pipe 7 through the water inlet 17, the screw-on cover 16 is closed, and after the aluminum alloy pipe is clamped with the pipe clamp 19, the device top cover 18 is closed with the device shell 1, so that the aluminum alloy pipe is placed inside the reaction chamber 6, so that the aluminum alloy pipe reacts inside the reaction chamber 6, and when the reaction chamber 6 is heated during use, the cold water in the water delivery pipe 7 is heated, the valve 4 is opened, and the hot water after heating flows out through the water outlet 5.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for micro-arc oxidation of the inner wall of a titanium alloy tube, comprising a device housing (1) and a reaction chamber (6), characterized in that: The device housing (1) is a hollow box body with an upper opening and a device top cover (18); the reaction chamber (6) is installed inside the device housing (1), and its outer wall surface is spaced apart from the inner wall surface of the device housing (1); Through holes are provided at four right angles on the bottom surface of the device housing (1), and a suction cup base (3) with a suction cup facing outward is movably connected to each through hole. A bidirectional screw rod (11) is provided on the upper side of the suction cup base (3). The bidirectional screw rod (11) penetrates the device housing (1) from the outside and extends inward, and its extension terminal is rotatably connected to the outer wall surface of the reaction chamber (6); Two sliding blocks (10) are symmetrically sleeved on the bidirectional screw (11). The two sliding blocks (10) slide towards or away from each other as the bidirectional screw (11) rotates. The bottom ends of both sliding blocks are rotatably connected to a support rod (12). The movable ends of the two support rods (12) are rotatably connected to the upper end of the suction cup base (3). The upper side of the bidirectional screw (11) is also provided with a sliding rod (13) whose two ends are respectively fixedly connected to the inner side surface of the device housing (1) and the outer side surface of the reaction chamber (6). The upper ends of the two sliding blocks (10) are provided with a connecting sleeve rod (9). The movable ends of the two connecting sleeve rods (9) are slidably connected to the sliding rod (13). The sliding rod (13) is sleeved with two tightening springs (8). The two tightening springs (8) are respectively located on the opposite sides of the two connecting sleeve rods (9). The bidirectional screw rod (11) is provided with a knob (14) at the end thereof located outside the device housing (1); A water delivery pipe (7) is sleeved on the outside of the reaction chamber (6); the two ends of the water delivery pipe (7) are distributed in an upper and lower direction, and both ends penetrate the device housing (1) and extend to the outside of the device housing (1); the upper end of the water delivery pipe (7) is a water inlet (17); a screw-on cover (16) is screwed on the water inlet (17); the lower end of the water delivery pipe (7) is a water outlet (5); and a valve (4) is provided on the water outlet (5).

2. The micro-arc oxidation device for the inner wall of a titanium alloy tube according to claim 1, characterized in that: The water delivery pipeline (7) is a spiral structure sleeved on the outside of the reaction chamber (6).

3. The micro-arc oxidation device for the inner wall of a titanium alloy tube according to claim 1, characterized in that: An observation window (2) is provided on the device housing (1).

4. The micro-arc oxidation device for the inner wall of a titanium alloy tube according to claim 1, characterized in that: A pipe clamp (19) is fixedly provided on the lower side of the device top cover (18).

5. The micro-arc oxidation device for the inner wall of a titanium alloy tube according to claim 1, characterized in that: A stopper (15) is fixedly provided on the side surface of the top end of the suction cup base (3) to prevent it from falling out.

Images