An aluminum alloy surface treatment oxidation device

Abstract

The present invention discloses an aluminum alloy surface treatment oxidation device, which relates to the technical field of anodic oxidation treatment. It includes an oxidation tank, a boom, and a third hole plugging member. The boom is clamped and matched with a conductive connecting plate, and a hanging rod is cooperatively installed on the boom. The third hole plugging member includes a third hole cover and a second connecting plate. The third hole cover and the second connecting plate are connected by a second spring airbag. A second locking silica gel ring is cooperatively installed on the outside of the second connecting plate. The second locking silica gel ring is connected to a third connecting pipe through a fourth connecting pipe. A third chamber is provided on the third hole cover, and a third chamber is provided inside the third hole cover. A number of third spray holes are provided on the third hole cover, and the third spray holes communicate with the third chamber. The hole plugging assembly of the present invention can prevent the oxidation liquid from entering the holes, and can also eject gas through the spray holes on the hole plugging member, so that the oxidation liquid will not remain in the sealing groove, and the problem of electrolyte penetration and pollution is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of anodic oxidation treatment, and specifically relates to an oxidation device for surface treatment of aluminum alloy. Background Art

[0002] Anodic oxidation is a commonly used surface treatment method for current aluminum and its alloys. This method can form an oxide film on aluminum products (anodes), so that aluminum alloy can overcome defects in aspects such as surface hardness and wear resistance of aluminum alloy, expand the application range, and extend its service life.

[0003] However, during the anodic oxidation treatment of aluminum alloy workpieces at present, significant deformation problems will occur in the precision shaft holes and screw holes (including through-hole and blind-hole structures) distributed on the workpiece surface during the formation of the oxide layer. The dense oxide film formed on the inner wall of the hole causes the aperture to shrink due to the thickness accumulation effect, directly destroying the assembly accuracy of the hole structure and supporting parts, resulting in the workpiece being unable to be installed normally;

[0004] Secondly, in complex geometric feature areas (such as deep grooves, bending angles, and micro cavities), it is extremely easy to form blind area liquid accumulation after being soaked in the oxidation solution. Conventional immersion washing processes are difficult to completely remove the residual liquid. These retained highly corrosive oxidation solutions continue to react with the substrate during subsequent storage or use, not only causing local dissolution and peeling of the oxide film, but also triggering secondary corrosion damage to the substrate, ultimately leading to the deterioration of the surface integrity and performance of the workpiece. Summary of the Invention

[0005] In order to solve the problem of forming an oxide film in the holes of the aluminum alloy workpiece mentioned in the above background art, the purpose of the present invention is to provide an oxidation device for surface treatment of aluminum alloy.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An oxidation device for surface treatment of aluminum alloy, comprising:

[0007] An oxidation tank, with two electrical connection slots provided on the upper side of the oxidation tank, and an electrolysis support is fitted in the electrical connection slot;

[0008] The electrolysis support includes a support plate, and a conductive connection plate is fitted on the lower side of the support plate;

[0009] A workpiece bearing assembly includes a lifting arm, the lifting arm is clamped and matched with the conductive connection plate, a suspension rod is fitted on the lifting arm, and a number of workpiece support discs are fitted on the suspension rod;

[0010] A hole plugging assembly includes a third hole plugging member;

[0011] The third hole plugging member includes a third hole cover and a second connecting plate. The third hole cover and the second connecting plate are connected by a second spring airbag. A second locking silica gel ring is fitted and installed on the outer side of the second connecting plate. The second locking silica gel ring is connected to the third connecting pipe through a fourth connecting pipe. A third chamber is formed in the third hole cover. A number of third spray holes are formed in the third hole cover, and the third spray holes are communicated with the third chamber.

[0012] Further, it further includes a slide rail system, which includes two first slide rails arranged in parallel. A first electric slider is fitted and installed on the two first slide rails. A second slide rail is fitted and installed on one side of the first electric slider. A first sliding plate is slidably fitted and installed on each of the two second slide rails. The two first sliding plates are fixedly connected by a fixing rod. Two support frames are fitted and installed on the fixing rod. A second sliding plate is slidably fitted and installed on the second slide rail. The two second sliding plates are fixedly connected by a substrate. A servo motor is fitted and installed on the lower side of the substrate. A material roll is driven and installed on one side of the servo motor. A lifting belt is wound inside the material roll, and the lower end of the lifting belt is fixedly installed on the fixing rod.

[0013] Further, a number of liquid supplement pipes are arranged on the side wall of the oxidation tank. Support seats are fitted and installed on both sides of the support plate, and the support seats are arranged in cooperation with the support frames.

[0014] Further, a lock catch is fitted and installed on the jib, and a number of elastic positioning claws are fitted and installed on the workpiece support plate.

[0015] Further, it further includes a pneumatic component, which includes a cylinder. The cylinder is fixedly installed on the fixing rod. A pipe connector is driven and connected to the lower side of the cylinder. A connecting seat is fixedly installed on the support plate. The pipe connector is connected to the connecting seat in cooperation. A connecting pipe seat is fitted and installed on the jib. The connecting pipe seat is connected to the connecting seat through a main connecting pipe.

[0016] Further, the hole plugging component further includes a first hole plugging member and a second hole plugging member. The lower side of the connecting pipe seat is arranged in cooperation with the first hole plugging member through a first connecting pipe. The lower side of the connecting pipe seat is arranged in cooperation with the second hole plugging member through a second connecting pipe. The lower side of the connecting pipe seat is arranged in cooperation with the third hole plugging member through a third connecting pipe.

[0017] Further, the first hole plugging member includes a first hole cover. A first hole plug is fitted and installed on one side of the first hole cover. A first chamber is formed in the first hole cover. A number of first spray holes are formed in the first hole cover, and the first spray holes are communicated with the first chamber. A locking groove is formed on one side of the first hole plug, and a hollow first locking silica gel ring is fitted and installed in the locking groove. A number of first sealing rings are fitted and installed on one side of the first hole cover;

[0018] The first connecting pipe is provided with a first channel and a second channel. The first channel is communicated with the first chamber, and the second channel is communicated with the inside of the first locking silica gel ring.

[0019] Further, the second hole plugging member includes a second hole cover and a first mounting plate. The second hole cover and the first mounting plate are connected by a first spring airbag. A second chamber is formed in the second hole cover. A plurality of second spray holes are formed in the second hole cover. The second spray holes are communicated with the second chamber. A plurality of second sealing rings are cooperatively installed on one side of the second hole cover. A locking buckle is cooperatively installed on one side of the first mounting plate.

[0020] The second connecting pipe is provided with a third channel and a fourth channel. The third channel is communicated with the second chamber, and the fourth channel is communicated with the inside of the first spring airbag.

[0021] Further, the third connecting pipe is provided with a fifth channel, a sixth channel and a seventh channel. The fifth channel is communicated with the third chamber. The sixth channel is communicated with the second locking silica gel ring through a fourth connecting pipe. The seventh channel is communicated with the second spring airbag.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] Through the synergistic effect of the first hole plugging member and the second hole plugging member, the through hole is double-sealed. The first hole plugging member and the second hole plugging member are installed at both ends of the through hole and locked. Then, the first spring airbag between the first hole cover and the second hole cover is controlled to contract, driving the first hole cover, the second hole cover and the workpiece sealing groove to achieve sealing. Through the continuous pressing action of the sealing surface, the internal closed environment of the hole is maintained, the electrolyte penetration path is blocked, and the problem that the inner diameter of the through hole changes due to the entry of the electrolyte into the through hole is effectively prevented, so that the workpiece after surface oxidation treatment can be directly put into use without further correcting the hole diameter.

[0024] Through the synergistic effect of the third hole plugging member, the blind hole is sealed. After the second connecting plate is placed in the blind hole, the second silica gel ring is controlled to expand, and then an interference fit is formed with the inside of the blind hole. At this time, the second spring airbag is controlled to contract, driving the third hole cover and the outer surface of the workpiece to achieve sealing. Through the continuous pressing action of the sealing surface, the internal closed environment of the hole is maintained, the electrolyte penetration path is blocked, and the problem that the inner diameter of the through hole changes due to the entry of the electrolyte into the through hole is effectively prevented, so that the workpiece after surface oxidation treatment can be directly put into use without further correcting the hole diameter.

[0025] 3. The hole plugging assembly of the present invention not only prevents the oxidation liquid from entering the holes, but also can eject gas through the spray holes on the hole plugging member, and blow out the residual oxidation liquid in the sealing grooves on both sides of the holes by blowing air, so that the oxidation liquid will not remain in the sealing grooves, eliminating the problem of electrolyte penetration and pollution, and providing a reliable process guarantee scheme for the surface treatment of precision aluminum alloy components. Moreover, when the aluminum alloy parts are washed with water, air can also be blown out through the spray holes on the hole plugging assembly, so that the hole plugging member can be separated from the workpiece and fall into the water washing tank, and bubbles are generated in the water washing tank to improve the water washing effect through the bubbles, making the surface of the oxidized aluminum alloy parts cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the basic structure of an aluminum alloy surface treatment oxidation device of the present invention Figure 1 。

[0027] Figure 2 is a schematic diagram of the basic structure of an aluminum alloy surface treatment oxidation device of the present invention Figure 2

[0028] Figure 3 is a schematic diagram of the basic structure of the pneumatic component and the workpiece carrying component of an aluminum alloy surface treatment oxidation device of the present invention.

[0029] Figure 4 is a schematic diagram of the basic structure of the first hole plugging member and the second hole plugging member of an aluminum alloy surface treatment oxidation device of the present invention Figure 1 。

[0030] Figure 5 is an aluminum alloy surface treatment oxidation device of the present invention Figure 4 of another perspective view.

[0031] Figure 6 is a schematic diagram of the basic structure of the first hole plugging member and the second hole plugging member of an aluminum alloy surface treatment oxidation device of the present invention Figure 2 。

[0032] Figure 7 is an aluminum alloy surface treatment oxidation device of the present invention Figure 6 of another perspective view.

[0033] Figure 8 is a schematic diagram of the channel in the second connecting pipe of an aluminum alloy surface treatment oxidation device of the present invention.

[0034] Figure 9 is a schematic diagram of the cooperation relationship between the first locking silica gel ring and the locking buckle of an aluminum alloy surface treatment oxidation device of the present invention.

[0035] Figure 10Schematic diagram of air inlet and outlet when plugging holes is completed by the first hole plugging member and the second hole plugging member of an aluminum alloy surface treatment oxidation device of the present invention.

[0036] Figure 11 Basic structural view of the third hole plugging member of an aluminum alloy surface treatment oxidation device of the present invention.

[0037] Figure 12 For an aluminum alloy surface treatment oxidation device of the present invention Figure 11 Half-sectional view.

[0038] Figure 13 Schematic diagram of the mating relationship between the third hole plugging member and the threaded hole of an aluminum alloy surface treatment oxidation device of the present invention.

[0039] Figure 14 Schematic diagram of the channel inside the third connecting pipe of an aluminum alloy surface treatment oxidation device of the present invention.

[0040] Figure 15 Schematic diagram of the structure when the second hole plugging member of an aluminum alloy surface treatment oxidation device of the present invention is located in the oxidation tank.

[0041] In the figure: 101, oxidation pond; 102, liquid supplement pipe; 103, electrical connection groove; 200, slide rail system; 201, first slide rail; 202, first electric slider; 203, second slide rail; 204, first sliding plate; 205, fixed rod; 206, support frame; 210, base plate; 211, servo motor; 212, material roll; 213, lifting belt; 214, second sliding plate; 300, electrolysis support; 301, support plate; 302, conductive connection plate; 303, support seat; 400, pneumatic component; 401, cylinder; 402, connection seat; 403, main connection pipe; 404, pipe connection head; 405, connection pipe seat; 500, workpiece bearing component; 501, lifting arm; 502, suspension rod; 503, workpiece support disc; 505, first connection pipe; 5051, first channel; 5052, second channel; 506, second connection pipe; 5061, third channel; 5062, fourth channel; 507, locking buckle; 508, third connection pipe; 5081, fifth channel; 5082, sixth channel; 5083, seventh channel; 509, elastic positioning claw; 600, first hole plugging part; 601, first hole cover; 602, first hole plug; 603, first spray hole; 604, first sealing ring; 605, locking groove; 607, first chamber; 608, first locking silica gel ring; 700, second hole plugging part; 701, second hole cover; 702, first mounting plate; 703, first spring airbag; 704, second spray hole; 705, second sealing ring; 706, locking buckle; 707, second chamber; 800, third hole plugging part; 801, third hole cover; 802, second connection plate; 803, second spring airbag; 804, third spray hole; 805, third chamber; 806, fourth connection pipe; 807, second locking silica gel ring; 901, aluminum alloy part; 902, precision shaft hole; 903, first sealing groove; 905, threaded hole; 906, second sealing groove. Detailed implementation manner

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Such as Figure 1 - Figure 15As shown in the figure, an aluminum alloy surface treatment oxidation device provided in this embodiment includes an oxidation tank 101, several liquid supplement pipes 102 provided on the side wall of the oxidation tank 101, and two electrical connection grooves 103 symmetrically arranged at the upper end of the tank body. An appropriate electrical control device is also provided on one side of the oxidation tank 101. The electrolyte in the oxidation tank 101 can be supplemented through the liquid supplement pipes 102. The electrical connection grooves 103 are connected to the anode of the electrolysis system and are used for anodic electrolysis of the corresponding aluminum alloy workpieces. The relevant circuit system adopts a conventional design and is not shown in the figure, so it will not be elaborated here.

[0044] The slide rail system 200, referring to Figure 1 and Figure 2 , which includes two first slide rails 201 arranged in parallel. A first electric slider 202 is fitted and installed on the two first slide rails 201. A second slide rail 203 is fitted and installed on one side of the first electric slider 202. First sliding plates 204 are slidably fitted and installed on the two second slide rails 203. The two first sliding plates 204 are fixedly connected through a fixing rod 205. Two support frames 206 are fitted and installed on the fixing rod 205. A second sliding plate 214 is slidably fitted and installed on the second slide rail 203. The two second sliding plates 214 are fixedly connected through a substrate 210. A servo motor 211 is fitted and installed on the lower side of the substrate 210. The output end of the servo motor 211 drives a material roll 212. A lifting belt 213 is wound inside the material roll 212. The lower end of the lifting belt 213 is fixedly installed on the fixing rod 205.

[0045] In this embodiment, a stable quadrilateral structure is formed between the substrate 210 and the fixing rod 205. A corresponding drive motor is provided inside the first electric slider 202, and the drive motor is used to drive the first electric slider 202 to move linearly along the first slide rail 201. The length of the lifting belt 213 released by the material roll 212 is controlled by the servo motor 211, so as to control the height of the fixing rod 205. The coordinated operation of the first electric slider 202 and the servo motor 211 can realize the precise positioning and transportation of the workpiece in three-dimensional space.

[0046] The electrolysis support 300, referring to Figure 2 and Figure 3 , includes a support plate 301. Support seats 303 are fitted and installed on both sides of the support plate 301. The support seats 303 are arranged in cooperation with the support frames 206. A conductive connection plate 302 is fitted and installed on the lower side of the support plate 301.

[0047] Specifically, the conductive connection plate 302 is made of a metal material with good electrical conductivity, and the conductive connection plate 302 can be snapped into the electrical connection groove 103 to achieve electrical connection, so that the conductive connection plate 302 is connected to the anode of the electrolysis system. When in use, when this embodiment is used in combination with multiple tanks, first, the electrolysis bracket 300 filled with aluminum alloy workpieces is sequentially placed into the degreasing and water washing tank, alkali washing tank, alkali removal and water washing tank, neutralization tank, pure water washing tank, chemical polishing tank, and water washing tank through the slide rail system 200 to complete the pretreatment of the aluminum alloy workpieces. Then, the electrolysis bracket 300 filled with aluminum alloy workpieces is placed into the oxidation tank 101 for anodic oxidation treatment of the aluminum alloy workpieces. Finally, the aluminum alloy workpieces are washed through the immersion washing tank and the water washing tank. In this embodiment, except for the oxidation tank 101, the other tanks are not shown in the figure. A snap-fit can be completed between the support frame 206 and the support seat 303. After the electrolysis bracket 300 is placed in the electrical connection groove 103 for snap-fit, when the support frame 206 continues to move downward, the separation between the support frame 206 and the support seat 303 can be completed. On the contrary, the support seat 303 and the electrolysis bracket 300 can be lifted by the support frame 206.

[0048] The workpiece carrying assembly 500, refer to Figure 3 , which includes a boom 501. The boom 501 is snap-fitted with the conductive connection plate 302. A locking buckle 507 is fitted on the boom 501. A suspension rod 502 is fitted on the boom 501. A number of workpiece support disks 503 are fitted on the suspension rod 502. A number of elastic positioning claws 509 are fitted on the workpiece support disks 503.

[0049] Specifically, the elastic positioning claws 509 can effectively support the aluminum alloy workpieces. Through the locking buckle 507, a tighter electrical connection can be achieved between the boom 501 and the conductive connection plate 302. Both the conductive connection plate 302 and the workpiece carrying assembly 500 as a whole are made of titanium alloy material. Titanium alloy has strong oxidation resistance, which can effectively extend the service life of the workpiece carrying assembly 500.

[0050] The pneumatic assembly 400, refer to Figure 3 and Figure 15 , includes a cylinder 401. The cylinder 401 is fixedly installed on the fixed rod 205. A pipe connector 404 is driven and connected to the lower side of the cylinder 401. A connection seat 402 is fixedly installed on the support plate 301. The pipe connector 404 is connected to the connection seat 402 in a matching manner. A connection pipe seat 405 is fitted on the boom 501. The connection pipe seat 405 and the connection seat 402 are connected by a main connection pipe 403. Specifically, the pipe connector 404 is a bent pipe, and one end of the pipe connector 404 is connected to the air pump system.

[0051] When used in this embodiment, when the electrolysis bracket 300 is hung on the support bracket 206, the air cylinder 401 extends, so that the pipe connector 404 is inserted into the connection seat 402, and the corresponding channels are communicated.

[0052] The hole plugging assembly includes a first hole plugging member 600, a second hole plugging member 700 and a third hole plugging member 800. The lower side of the connecting pipe seat 405 is cooperatively arranged with the first hole plugging member 600 through the first connecting pipe 505, the lower side of the connecting pipe seat 405 is cooperatively arranged with the second hole plugging member 700 through the second connecting pipe 506, and the lower side of the connecting pipe seat 405 is cooperatively arranged with the third hole plugging member 800 through the third connecting pipe 508.

[0053] It should be noted that two channels are provided in the connection seat 402, the main connecting pipe 403 and the pipe connector 404, one is an air inflation channel and the other is an air suction channel. A plurality of two-way solenoid valves are arranged in the connecting pipe seat 405, and the channels in the lower pipelines (the first connecting pipe 505, the second connecting pipe 506, the third connecting pipe 508) can be controlled by an electric control device to access the required air inflation or air suction channels. This kind of solenoid valve technology is a conventional technology and will not be elaborated here too much.

[0054] In this embodiment, the corresponding hole plugging assembly is used to block the aluminum alloy part 901 with holes. At present, some aluminum alloy parts 901 are provided with precision shaft holes 902. Sealing rings are installed in the first sealing grooves 903 at both ends of the precision shaft holes 902 when the rotating shafts are installed in the precision shaft holes 902 for use. Some aluminum alloy parts 901 are provided with threaded holes 905 and corresponding second sealing grooves 906. The second sealing grooves 906 are used to place gaskets and sealing rings to prevent liquid from entering the threaded holes 905 after the threads and screws are assembled. Moreover, after the surface of the current aluminum alloy parts 901 is subjected to surface oxidation treatment, since an oxide film is formed on its surface, the thickness of the oxide film can reach 100 to 200 microns, which will cause assembly failure for some precision-installed shaft holes, pin holes or threaded blind holes with high requirements. And due to the characteristics of the anodic oxidation treatment of first corrosion and then generation, the threads will fail. The current operation of sealing holes with beeswax is very likely to melt when put into an electrolytic cell with a higher temperature. On the one hand, the melted beeswax will remain in the electrolytic cell and pollute the electrolyte. On the other hand, after the beeswax melts, a certain amount of electrolyte will enter and remain in the holes, continuously corroding the holes. At this time, a new hole plugging member is needed to effectively block the holes to fill this gap.

[0055] Refer to Figure 4 - Figure 8As shown in the figure, the first hole-blocking member 600 includes a first hole cover 601. A first hole plug 602 is fitted and installed on one side of the first hole cover 601. A first chamber 607 is formed on the first hole cover 601. A number of first spray holes 603 are formed on the first hole cover 601. The first spray holes 603 communicate with the first chamber 607. A locking groove 605 is formed on one side of the first hole plug 602. A hollow first locking silica gel ring 608 is fitted and installed in the locking groove 605. A number of first sealing rings 604 are fitted and installed on one side of the first hole cover 601. A first channel 5051 and a second channel 5052 are provided in the first connecting pipe 505. The first channel 5051 communicates with the first chamber 607. The second channel 5052 communicates with the inside of the first locking silica gel ring 608;

[0056] The second hole-blocking member 700 includes a second hole cover 701 and a first mounting plate 702. The second hole cover 701 and the first mounting plate 702 are connected by a first spring airbag 703. A second chamber 707 is formed in the second hole cover 701. A number of second spray holes 704 are formed on the second hole cover 701. The second spray holes 704 communicate with the second chamber 707. A number of second sealing rings 705 are fitted and installed on one side of the second hole cover 701. A locking buckle 706 is fitted and installed on one side of the first mounting plate 702. A third channel 5061 and a fourth channel 5062 are provided in the second connecting pipe 506. The third channel 5061 communicates with the second chamber 707. The fourth channel 5062 communicates with the inside of the first spring airbag 703;

[0057] In this embodiment, the first hole-blocking member 600 and the second hole-blocking member 700 are used in combination to block through holes. When the first hole-blocking member 600 and the second hole-blocking member 700 are used, the usage steps are as follows:

[0058] Step 1: Inflate the first spring airbag 703 through the fourth channel 5062 to make the first spring airbag 703 expand. Extract air from the first locking silica gel ring 608 through the second channel 5052 to make the first locking silica gel ring 608 contract. Place the second hole cover 701 and the first hole cover 601 on both sides of a through hole to complete a primary locking between the first locking silica gel ring 608 and the locking buckle 706;

[0059] Step 2: After all the first hole-blocking members 600 and the second hole-blocking members 700 are placed, inflate the first locking silica gel ring 608 through the second channel 5052 to make the first locking silica gel ring 608 expand and then lock it with the locking buckle 706 (refer to Figure 9 , the white solid arrow indicates the expansion direction of the first locking silica gel ring 608);

[0060] Step 3: Then, evacuate the first spring airbag 703 through the fourth channel 5062. At this time, the first spring airbag 703 will contract, pulling the second hole cover 701 and the first hole cover 601 to contract towards the direction of the precision shaft hole 902. Seal the precision shaft hole 902 through the sealing rings on one side of the first hole cover 601 and the second hole cover 701. At this time, the aluminum alloy workpiece can be immersed in the electrolyte for anodic oxidation operation (refer to Figure 9 , the white dashed arrow is the gas flow direction, the black dashed arrow is the moving direction of the second hole cover 701 and the first hole cover 601, and the black solid arrow is the contraction direction of the first spring airbag 703);

[0061] Step 4: When the workpiece is lifted out of the oxidation tank 101 after anodic oxidation is completed, air can be inflated into the second chamber 707 through the third channel 5061, so that air is ejected from the corresponding second spray holes 704 to discharge the residual electrolyte in the first sealing groove 903 (refer to Figure 10 , the white dashed arrow is the gas flow direction, the black dashed arrow is the moving direction of the second hole cover 701 and the first hole cover 601, the black solid arrow is the contraction direction of the first spring airbag 703, and the black small arrow is the air discharge direction).

[0062] Step 5: When the workpiece is immersed in the initial washing tank for washing, air can be inflated into the second chamber 707 through the third channel 5061 again, so that air is ejected from the corresponding second spray holes 704. On the one hand, it can wash the first sealing groove 903 to prevent electrolyte residue. On the other hand, the ejected air can accelerate the exchange of water molecules in the initial washing tank, thereby accelerating the cleaning effect of the aluminum alloy workpiece;

[0063] Step 6: When the workpiece is taken out of the initial washing liquid and placed in the water washing tank, evacuate the first locking silica gel ring 608 through the second channel 5052, so that the locking between the locking buckle 706 and the first locking silica gel ring 608 fails. At this time, air is inflated into the second chamber 707 through the third channel 5061 again, so that air is ejected from the corresponding second spray holes 704. The obliquely sprayed air flow assists the first hole cover 601 and the second hole cover 701 to disengage from the precision shaft hole 902, so that the first hole plugging member 600 and the second hole plugging member 700 fall into the water washing tank. The corresponding spray holes on the first hole plugging member 600 and the second hole plugging member 700 will continuously eject air, making the water washing tank full of foam become a foam washing tank, further improving the water washing effect of the water washing tank on the aluminum alloy workpiece.

[0064] The third hole-blocking member 800 includes a third hole cover 801 and a second connecting plate 802. The third hole cover 801 and the second connecting plate 802 are connected by a second spring airbag 803. A plurality of rubber sealing rings are provided on one side of the third hole cover 801. A second locking silica gel ring 807 is fitted and installed on the outer side of the second connecting plate 802. The second locking silica gel ring 807 is connected to the third connecting pipe 508 through a fourth connecting pipe 806. A third chamber 805 is opened on the third hole cover 801. A third chamber 805 is opened inside the third hole cover 801. A plurality of third spray holes 804 are opened on the third hole cover 801. The third spray holes 804 communicate with the third chamber 805. A fifth channel 5081, a sixth channel 5082, and a seventh channel 5083 are provided in the third connecting pipe 508. The fifth channel 5081 communicates with the third chamber 805. The sixth channel 5082 communicates with the second locking silica gel ring 807 through the fourth connecting pipe 806. The seventh channel 5083 communicates with the second spring airbag 803.

[0065] In this embodiment, the steps for the third hole-blocking member 800 to block the blind hole are as follows:

[0066] Step 1: Inflate the second spring airbag 803 through the seventh channel 5083, so that the second spring airbag 803 expands and inserts the second spring airbag 803 into the blind hole to be blocked.

[0067] Step 2: Inflate the second locking silica gel ring 807 through the sixth channel 5082 and the fourth connecting pipe 806. The second locking silica gel ring 807 expands, and then the second connecting plate 802 is fixed in the blind hole.

[0068] Step 3: Exhaust the air in the second spring airbag 803 through the seventh channel 5083, so that the third hole cover 801 moves deeper into the blind hole, thereby completing the blocking of the blind hole. At this time, the aluminum alloy workpiece can be immersed in the electrolyte for anodizing operation.

[0069] Step 4: When the workpiece is lifted out of the oxidation tank 101 after anodizing is completed, air can be inflated into the third chamber 805 through the fifth channel 5081, so that air is ejected from the corresponding third spray holes 804 to discharge the residual electrolyte in the second sealing groove 906.

[0070] Step 5: When the workpiece is immersed in the initial washing tank for washing, air can be inflated into the third chamber 805 through the fifth channel 5081 again, so that air is ejected from the corresponding third spray holes 804. On the one hand, it can wash the second sealing groove 906 to prevent electrolyte residue. On the other hand, the ejected air can accelerate the exchange of water molecules in the initial washing tank, thereby accelerating the cleaning effect of the aluminum alloy workpiece.

[0071] Step 6: When the workpiece is taken out of the initial cleaning solution and placed into the water washing pool, the second locking silica gel ring 807 can be evacuated through the sixth channel 5082 and the fourth connecting pipe 806, so that the locking between the second locking silica gel ring 807 and the inner wall of the blind hole fails. At this time, the third chamber 805 is inflated again through the fifth channel 5081, so that air is ejected from the corresponding third spray holes 804. The obliquely ejected gas can assist the third hole plugging member 800 to escape from the corresponding second sealing groove 906, so that the third hole plugging member 800 falls into the water washing pool. The corresponding spray holes on the third hole plugging member 800 will continuously eject air, making the water washing pool filled with foam become a foam flushing pool, further improving the water washing effect of the water washing pool on the aluminum alloy workpiece.

[0072] By blocking the through holes with the first hole plugging member 600 and the second hole plugging member 700, and blocking the blind holes with the third hole plugging member 800, the generation of corresponding oxide layers in the holes can be effectively prevented, and the situation of part assembly failure caused by the generation of oxide layers in the holes can be effectively prevented. Moreover, the hole plugging assembly not only prevents the oxidation liquid from entering the holes, but also can discharge the residual oxidation liquid in the sealing grooves on both sides of the holes. Not only that, when the aluminum alloy parts are washed with water, air can also be blown out through the spray holes on the hole plugging assembly to generate bubbles in the water washing pool, improving the water washing effect.

[0073] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy surface treatment oxidation device, characterized in that: include: An oxidation tank (101), wherein two electrical connection grooves (103) are provided on the upper side of the oxidation tank (101), and an electrolysis bracket (300) is cooperatively installed in the electrical connection grooves (103); The electrolysis support (300) comprises a support plate (301), wherein a conductive connection plate (302) is mounted on the lower side of the support plate (301); The workpiece bearing assembly (500) comprises a suspension arm (501), the suspension arm (501) being engaged with the conductive connection plate (302), a suspension rod (502) being mounted on the suspension arm (501), and a plurality of workpiece supporting plates (503) being mounted on the suspension rod (502); A hole plugging assembly, comprising a third hole plugging member (800); The third hole plugging member (800) comprises a third hole cover (801) and a second connecting plate (802); the third hole cover (801) and the second connecting plate (802) are connected via a second spring airbag (803); a second locking silicone ring (807) is mounted on the outer side of the second connecting plate (802); the second locking silicone ring (807) is connected to the third connecting tube (508) via a fourth connecting tube (806); a third chamber (805) is provided in the third hole cover (801); a plurality of third spray holes (804) are provided on the third hole cover (801); the third spray holes (804) are in communication with the third chamber (805); It also includes a pneumatic assembly (400), including a cylinder (401), the cylinder (401) being fixedly mounted on a fixed rod (205), a pipe connector (404) being drivingly connected to the lower side of the cylinder (401), a connecting seat (402) being fixedly mounted on the support plate (301), the pipe connector (404) being cooperatively connected to the connecting seat (402), a connecting pipe seat (405) being cooperatively mounted on the suspension arm (501), and the connecting pipe seat (405) being connected to the connecting seat (402) via a main connecting pipe (403); The hole plugging assembly further comprises a first hole plugging member (600) and a second hole plugging member (700); the lower side of the connecting pipe seat (405) is arranged in cooperation with the first hole plugging member (600) via a first connecting pipe (505); the lower side of the connecting pipe seat (405) is arranged in cooperation with the second hole plugging member (700) via a second connecting pipe (506); and the lower side of the connecting pipe seat (405) is arranged in cooperation with the third hole plugging member (800) via a third connecting pipe (508).

2. The aluminum alloy surface treatment oxidation device according to claim 1, characterized in that: It also comprises a slide rail system (200), comprising two first slide rails (201) arranged in parallel, a first electric slider (202) being mounted on the two first slide rails (201), a second slide rail (203) being mounted on one side of the first electric slider (202), a first slide plate (204) being mounted on the two second slide rails (203) in a slidable manner, the two first slide plates (204) being fixedly connected via a fixing rod (205), two support frames (206) being mounted on the fixing rod (205), a second slide plate (214) being mounted on the second slide rails (203) in a slidable manner, the two second slide plates (214) being fixedly connected via a base plate (210), a servo motor (211) being mounted on the lower side of the base plate (210), a material roll (212) being driven and mounted on one side of the servo motor (211), a lifting belt (213) being wound inside the material roll (212), and a lower end of the lifting belt (213) being fixedly mounted on the fixing rod (205).

3. The aluminum alloy surface treatment oxidation device according to claim 2, characterized in that: A plurality of liquid replenishing tubes (102) are provided on the side wall of the oxidation pool (101); support seats (303) are installed on both sides of the support plate (301); and the support seats (303) are arranged in cooperation with the support frame (206).

4. The aluminum alloy surface treatment oxidation device according to claim 1, characterized in that: A locking buckle (507) is mounted on the suspension arm (501), and a plurality of elastic positioning claws (509) are mounted on the workpiece support plate (503).

5. The aluminum alloy surface treatment oxidation device according to claim 1, characterized in that: The first hole plugging member (600) comprises a first hole cover (601), a first hole plug (602) is mounted on one side of the first hole cover (601), a first chamber (607) is formed on the first hole cover (601), a plurality of first spray holes (603) are formed on the first hole cover (601), the first spray holes (603) are connected to the first chamber (607), a locking groove (605) is formed on one side of the first hole plug (602), a hollow first locking silicone ring (608) is mounted in the locking groove (605), and a plurality of first sealing rings (604) are mounted on one side of the first hole cover (601); A first channel (5051) and a second channel (5052) are provided in the first connecting tube (505); the first channel (5051) is communicated with the first chamber (607); and the second channel (5052) is communicated with the interior of the first locking silicone ring (608).

6. The aluminum alloy surface treatment oxidation device according to claim 5, characterized in that: The second hole plugging member (700) comprises a second hole cover (701) and a first mounting plate (702); the second hole cover (701) and the first mounting plate (702) are connected via a first spring airbag (703); a second chamber (707) is provided in the second hole cover (701); a plurality of second spray holes (704) are provided on the second hole cover (701); the second spray holes (704) and the second chamber (707) are communicated; a plurality of second sealing rings (705) are mounted on one side of the second hole cover (701); and a locking buckle (706) is mounted on one side of the first mounting plate (702); A third channel (5061) and a fourth channel (5062) are provided in the second connecting tube (506); the third channel (5061) is in communication with the second chamber (707); and the fourth channel (5062) is in communication with the interior of the first spring airbag (703).

7. The aluminum alloy surface treatment oxidation device according to claim 6, characterized in that: The third connecting tube (508) is provided with a fifth channel (5081), a sixth channel (5082) and a seventh channel (5083); the fifth channel (5081) is connected to the third chamber (805); the sixth channel (5082) is connected to the second locking silicone ring (807) via the fourth connecting tube (806); and the seventh channel (5083) is connected to the second spring airbag (803).

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