Aluminum alloy surface treatment oxidation device

Abstract

The invention discloses an aluminum alloy surface treatment oxidation device, and relates to the technical field of anodic oxidation treatment.The aluminum alloy surface treatment oxidation device comprises an oxidation pond, a suspension arm and a third hole blocking piece, the suspension arm is clamped and matched with a conductive connecting plate, a suspension rod is installed on the suspension arm in a matched mode, and the third hole blocking piece comprises a third hole cover and a second connecting plate; the third hole cover is connected with the second connecting plate through a second spring air bag, a second locking silica gel ring is installed on the outer side of the second connecting plate in a matched mode, the second locking silica gel ring is connected with the third connecting pipe through a fourth connecting pipe, a third cavity is formed in the third hole cover, and a third cavity is formed in the third hole cover; and a plurality of third spray holes are formed in the third hole cover and communicate with the third cavity. According to the hole plugging assembly, the effect of preventing the oxidation liquid from entering the hole can be achieved, gas can be sprayed out through the spraying holes in the hole plugging piece, the oxidation liquid cannot remain in the sealing groove, and the problem of electrolyte permeation pollution is completely eradicated.

Description

Technical Field

[0001] The invention relates to the technical field of anodizing treatment, in particular to an aluminum alloy surface treatment oxidation device. Background Art

[0002] Anodizing is currently a commonly used surface treatment method for aluminum and its alloys. This method can form an oxide film on the aluminum product (anode), thereby enabling the aluminum alloy to overcome the defects of surface hardness and wear resistance, expand its application range, and extend its service life.

[0003] However, during the anodizing process of aluminum alloy workpieces, the precision shaft holes and screw holes (including through holes and blind holes) distributed on the surface of the workpiece will produce significant deformation problems during the formation of the oxide layer. The dense oxide film formed on the inner wall of the hole will reduce the aperture due to the cumulative effect of thickness, directly destroying the assembly accuracy of the hole structure and supporting parts, causing the workpiece to be unable to be installed normally. Secondly, complex geometric feature areas (such as deep grooves, bending angles and micro-cavities) are very likely to form blind area liquid accumulation after being immersed in the oxidizing liquid. Conventional immersion and washing processes are difficult to completely remove the residual liquid. These retained highly corrosive oxidizing liquids continue to react with the substrate during subsequent storage or use, which not only causes local dissolution and peeling of the oxide film, but also causes secondary corrosion damage to the substrate, ultimately leading to the deterioration of the surface integrity and performance of the workpiece. Summary of the invention

[0004] In order to solve the problem of oxide film formation in the holes on the aluminum alloy workpiece mentioned in the above background technology, the purpose of the present invention is to provide an aluminum alloy surface treatment oxidation device.

[0005] To achieve the above object, the present invention provides the following technical solution: an aluminum alloy surface treatment oxidation device, comprising: An oxidation tank, wherein two electrical connection grooves are provided on the upper side of the oxidation tank, and an electrolysis bracket is installed in the electrical connection grooves; The electrolysis support comprises a support plate, and a conductive connecting plate is mounted on the lower side of the support plate; The workpiece bearing assembly includes a suspension arm, the suspension arm is engaged with the conductive connecting plate, a suspension rod is mounted on the suspension arm, and a plurality of workpiece supporting plates are mounted on the suspension rod; The hole plugging assembly includes a third hole plugging member; The third hole blocking member includes a third hole cover and a second connecting plate, the third hole cover and the second connecting plate are connected via a second spring airbag, a second locking silicone ring is mounted on the outer side of the second connecting plate, the second locking silicone ring is connected to the third connecting tube via a fourth connecting tube, a third chamber is defined in the third hole cover, a plurality of third spray holes are defined on the third hole cover, and the third spray holes are connected to the third chamber.

[0006] Furthermore, it also includes a slide rail system, including two first slide rails arranged in parallel, a first electric slider is installed on the two first slide rails, a second slide rail is installed on one side of the first electric slider, a first sliding plate is slidably installed on both of the two second slide rails, the two first sliding plates are fixedly connected by a fixed rod, two support frames are installed on the fixed rod, a second sliding plate is slidably installed on the second slide rail, the two second sliding plates are fixedly connected by a base plate, a servo motor is installed on the lower side of the base plate, 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 fixed rod.

[0007] Furthermore, a plurality of liquid replenishing pipes on the side wall of the oxidation pool are provided with support seats on both sides of the support plate, and the support seats are provided in cooperation with the support frame.

[0008] Furthermore, a locking buckle is installed on the suspension arm, and a plurality of elastic positioning claws are installed on the workpiece support plate.

[0009] Furthermore, it also includes a pneumatic component, including a cylinder, which is fixedly mounted on a fixed rod, a pipe connector is driven and connected to the lower side of the cylinder, a connecting seat is fixedly mounted on the support plate, the pipe connector is cooperatively connected to the connecting seat, a connecting pipe seat is cooperatively mounted on the boom, and the connecting pipe seat is connected to the connecting seat through a main connecting pipe.

[0010] Furthermore, the hole plugging assembly also includes a first hole plugging member and a second hole plugging member, the lower side of the connecting pipe seat is cooperated with the first hole plugging member through the first connecting pipe, the lower side of the connecting pipe seat is cooperated with the second hole plugging member through the second connecting pipe, and the lower side of the connecting pipe seat is cooperated with the third hole plugging member through the third connecting pipe.

[0011] Further, the first hole plugging member includes a first hole cover, a first hole plug is installed on one side of the first hole cover, a first chamber is formed on the first hole cover, a plurality of first spray holes are formed on the first hole cover, the first spray holes are connected to the first chamber, a locking groove is formed on one side of the first hole plug, a hollow first locking silicone ring is installed in the locking groove, and a plurality of first sealing rings are installed on one side of the first hole cover; A first channel and a second channel are provided in the first connecting tube, the first channel is communicated with the first chamber, and the second channel is communicated with the inside of the first locking silicone ring.

[0012] Further, the second hole blocking member includes a second hole cover and a first mounting plate, the second hole cover and the first mounting plate are connected via a first spring airbag, a second chamber is defined in the second hole cover, a plurality of second spray holes are defined on the second hole cover, the second spray holes are connected to the second chamber, a plurality of second sealing rings are mounted on one side of the second hole cover, and a locking buckle is mounted on one side of the first mounting plate; A third channel and a fourth channel are provided in the second connecting pipe, the third channel is communicated with the second chamber, and the fourth channel is communicated with the interior of the first spring airbag.

[0013] Furthermore, a fifth channel, a sixth channel and a seventh channel are provided in the third connecting tube, the fifth channel is connected to the third chamber, the sixth channel is connected to the second locking silicone ring through the fourth connecting tube, and the seventh channel is connected to the second spring airbag.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes double-layer sealing of the through hole through the synergistic effect of the first hole-blocking component and the second hole-blocking component. The first hole-blocking component and the second hole-blocking component are installed at both ends of the through hole and locked, and then the first spring airbag between the first hole cover and the second hole cover is controlled to shrink, driving the first hole cover, the second hole cover and the workpiece sealing groove to achieve sealing, and the closed environment inside the hole is maintained through the continuous compression effect of the sealing surface, blocking the electrolyte penetration path, and effectively preventing the electrolyte from entering the through hole and causing the inner diameter of the through hole to change, so that the workpiece that has been surface oxidized can be directly put into use without the need to correct the hole diameter.

[0015] The present invention achieves the sealing of the blind hole through the synergistic effect of the third hole blocking member, and then after the second connecting plate is placed in the blind hole, the second silicone ring is controlled to expand to form an interference fit with the blind hole. At this time, the second spring airbag is controlled to contract to drive the third hole cover to achieve sealing with the outer surface of the workpiece, and the closed environment inside the hole is maintained through the continuous compression of the sealing surface, blocking the electrolyte penetration path, and effectively preventing the electrolyte from entering the through hole and causing the inner diameter of the through hole to change, so that the workpiece that has been surface oxidized can be directly put into use without the need to correct the aperture.

[0016] 3. The hole plugging assembly of the present invention not only prevents the oxidizing liquid from entering the holes, but also can spray gas through the spray holes on the hole plugging component, and discharge the residual oxidizing liquid in the sealing grooves on both sides of the hole by blowing, so that the oxidizing liquid will not remain in the sealing grooves, and the problem of electrolyte penetration and contamination is eliminated, providing a reliable process guarantee solution for the surface treatment of precision aluminum alloy components. 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, so that the hole plugging component is detached from the workpiece and falls into the water washing tank, and bubbles are generated in the water washing tank. The water washing effect is enhanced by the bubbles, so that the surface of the oxidized aluminum alloy parts is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The basic structure of an aluminum alloy surface treatment oxidation device of the present invention is shown in FIG. Figure 1 .

[0018] Figure 2 The basic structure of an aluminum alloy surface treatment oxidation device of the present invention is shown in FIG. Figure 2 Figure 3 The present invention is a schematic diagram of the basic structure of a pneumatic component and a workpiece bearing component of an aluminum alloy surface treatment oxidation device.

[0019] Figure 4 The basic structure of the first hole blocking member and the second hole blocking member of the aluminum alloy surface treatment oxidation device of the present invention is shown in FIG. Figure 1 .

[0020] Figure 5 The present invention is an aluminum alloy surface treatment oxidation device Figure 4 Another perspective of the picture.

[0021] Figure 6 The basic structure of the first hole blocking member and the second hole blocking member of the aluminum alloy surface treatment oxidation device of the present invention is shown in FIG. Figure 2 .

[0022] Figure 7 The present invention is an aluminum alloy surface treatment oxidation device Figure 6 Another perspective of the picture.

[0023] Figure 8 The figure is a schematic diagram of the channel in the second connecting pipe of the aluminum alloy surface treatment oxidation device of the present invention.

[0024] Fig. 9 It is a schematic diagram of the matching relationship between the first locking silicone ring and the locking buckle of an aluminum alloy surface treatment oxidation device of the present invention.

[0025] Fig.10It is a schematic diagram of the inlet and outlet of an aluminum alloy surface treatment oxidation device of the present invention when the hole is blocked by the first hole blocking member and the second hole blocking member.

[0026] Fig.11 This is a basic structural view of the third hole plugging component of an aluminum alloy surface treatment oxidation device of the present invention.

[0027] Fig.12 The present invention is an aluminum alloy surface treatment oxidation device Fig.11 Half section view.

[0028] Fig.13 It is a schematic diagram of the matching relationship between the third hole blocking member and the threaded hole of an aluminum alloy surface treatment oxidation device of the present invention.

[0029] Fig.14 It is a schematic diagram of the channel in the third connecting pipe of an aluminum alloy surface treatment oxidation device of the present invention.

[0030] Fig.15 It is a schematic structural diagram of a second hole blocking member of an aluminum alloy surface treatment oxidation device of the present invention when it is located in an oxidation tank.

[0031] In the figure: 101, oxidation tank; 102, liquid infusion tube; 103, electrical connection groove; 200, slide rail system; 201, first slide rail; 202, first electric slider; 203, second slide rail; 204, first slide plate; 205, fixing rod; 206, support frame; 210, substrate; 211, servo motor; 212, material roll; 213, lifting belt; 214, second slide plate; 300, electrolysis support; 301, support plate; 302, conductive connection plate; 303 , support seat; 400, pneumatic assembly; 401, cylinder; 402, connection seat; 403, main connecting pipe; 404, pipe connector; 405, connecting pipe seat; 500, workpiece bearing assembly; 501, suspension arm; 502, suspension rod; 503, workpiece support plate; 505, first connecting pipe; 5051, first channel; 5052, second channel; 506, second connecting pipe; 5061, third channel; 5062, fourth channel; 507, locking buckle; 508, The third connecting pipe; 5081, the fifth channel; 5082, the sixth channel; 5083, the seventh channel; 509, the elastic positioning claw; 600, the first hole blocking member; 601, the first hole cover; 602, the first hole plug; 603, the first spray hole; 604, the first sealing ring; 605, the locking groove; 607, the first chamber; 608, the first locking silicone ring; 700, the second hole blocking member; 701, the second hole cover; 702, the first mounting plate; 703, the first spring airbag; 704, second spray hole; 705, second sealing ring; 706, locking buckle; 707, second chamber; 800, third hole blocking member; 801, third hole cover; 802, second connecting plate; 803, second spring airbag; 804, third spray hole; 805, third chamber; 806, fourth connecting pipe; 807, second locking silicone ring; 901, aluminum alloy part; 902, precision shaft hole; 903, first sealing groove; 905, threaded hole; 906, second sealing groove. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1 - Fig.15As shown, an aluminum alloy surface treatment oxidation device provided in this embodiment includes an oxidation tank 101, a plurality of liquid replenishing tubes 102 arranged on the side walls of the oxidation tank 101, and two electrical connection grooves 103 symmetrically arranged on the upper end of the tank body. A corresponding electrical control device is also provided on one side of the oxidation tank 101. The electrolyte in the oxidation tank 101 can be replenished through the liquid replenishing tube 102. The electrical connection groove 103 is connected to the anode of the electrolysis system for anodic electrolysis of the corresponding aluminum alloy workpiece. The relevant circuit system adopts a conventional design, which is not shown in the figure and will not be described in detail here.

[0034] Rail system 200, see Figure 1 and Figure 2 It includes two first slide rails 201 arranged in parallel, and the two first slide rails 201 are cooperated with the first electric slider 202, and the second slide rail 203 is cooperated with the first slide plate 204 installed on the two second slide rails 203 in a slidable manner. The two first slide plates 204 are fixedly connected by a fixing rod 205, and two supporting frames 206 are cooperated with the fixing rod 205. The second slide rails 203 are slidably installed with a second slide plate 214, and the two second slide plates 214 are fixedly connected by a base plate 210. A servo motor 211 is cooperated with the lower side of the base plate 210, and the output end of the servo motor 211 drives the material roll 212, and the lifting belt 213 is wound inside the material roll 212, and the lower end of the lifting belt 213 is fixedly installed on the fixing rod 205.

[0035] In this embodiment, a stable quadrilateral structure is formed between the base plate 210 and the fixed rod 205. A corresponding driving motor is provided in the first electric slider 202. The driving motor is used to drive the first electric slider 202 to move linearly along the first slide rail 201. The servo motor 211 controls the length of the lifting belt 213 released by the material roll 212, thereby controlling the height of the fixed rod 205. The first electric slider 202 and the servo motor 211 work together to achieve precise positioning and transportation of the workpiece in three-dimensional space.

[0036] Electrolysis support 300, reference Figure 2 and Figure 3 , including a support plate 301, support seats 303 are installed on both sides of the support plate 301, the support seat 303 is arranged in cooperation with the support frame 206, and a conductive connecting plate 302 is installed on the lower side of the support plate 301.

[0037] Specifically, the conductive connecting plate 302 is made of a metal material with good conductive properties, and the conductive connecting plate 302 can be inserted into the electrical connection slot 103 and electrically connected, so that the conductive connecting plate 302 is connected to the anode of the electrolysis system. When in use, when this embodiment is used with multiple cell bodies, first, the electrolysis support 300 filled with aluminum alloy workpieces is placed in the degreasing water washing tank, the alkali washing tank, the dealkali water washing tank, the neutralization tank, the pure water washing tank, the chemical polishing tank, and the water washing tank in sequence through the slide rail system 200 to complete the pretreatment of the aluminum alloy workpieces, and then the electrolysis support 300 filled with aluminum alloy workpieces is placed in the electrolysis system 103. 00 is placed in the oxidation tank 101 to perform anodizing treatment on the aluminum alloy workpiece, and finally the aluminum alloy workpiece is washed with water through the immersion tank and the water washing tank. In this embodiment, except for the oxidation tank 101, the other tank bodies are not shown in the figure. The support frame 206 and the support seat 303 can be snap-fitted. After the electrolysis bracket 300 is placed in the electrical connection groove 103 for snap-fitting, the support frame 206 continues to move downward to complete the separation between the support frame 206 and the support seat 303. On the contrary, the support seat 303 and the electrolysis bracket 300 can be lifted by the support frame 206.

[0038] Workpiece carrier assembly 500, see Figure 3 It includes a suspension arm 501, which is engaged with the conductive connecting plate 302, and a locking buckle 507 is installed on the suspension arm 501. A suspension rod 502 is installed on the suspension arm 501, and a plurality of workpiece support plates 503 are installed on the suspension rod 502. A plurality of elastic positioning claws 509 are installed on the workpiece support plates 503.

[0039] Specifically, the elastic positioning claw 509 can effectively support the aluminum alloy workpiece, and a tighter electrical connection can be achieved between the suspension arm 501 and the conductive connecting plate 302 through the locking buckle 507. The conductive connecting plate 302 and the workpiece supporting assembly 500 are both made of titanium alloy. Titanium alloy has strong oxidation resistance and can effectively improve the service life of the workpiece supporting assembly 500.

[0040] Pneumatic assembly 400, see Figure 3 and Fig.15 , including a cylinder 401, which is fixedly installed on the fixed rod 205, and a pipe connector 404 is driven and connected at the lower side of the cylinder 401, a connecting seat 402 is fixedly installed on the support plate 301, the pipe connector 404 is cooperatively connected with the connecting seat 402, and a connecting pipe seat 405 is cooperatively installed on the boom 501, and the connecting pipe seat 405 is connected to the connecting seat 402 through a main connecting 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.

[0041] When the present embodiment is used, when the electrolysis support 300 is hung on the support frame 206, the cylinder 401 is extended, so that the pipe connector 404 is inserted into the connection seat 402, so that the corresponding channels are connected.

[0042] 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 matched with the first hole plugging member 600 through the first connecting pipe 505, the lower side of the connecting pipe seat 405 is matched with the second hole plugging member 700 through the second connecting pipe 506, and the lower side of the connecting pipe seat 405 is matched with the third hole plugging member 800 through the third connecting pipe 508.

[0043] It should be noted that two channels are provided in the connecting seat 402, the main connecting pipe 403 and the pipe connector 404, one is the inflation channel and the other is the air suction channel. A plurality of two-way solenoid valves are provided in the connecting pipe seat 405, and the channels in the lower pipelines (the first connecting pipe 505, the second connecting pipe 506, and the third connecting pipe 508) can be controlled by electronic control equipment to connect to the required inflation or air suction channels. This solenoid valve technology is conventional technology and will not be elaborated on here.

[0044] In this embodiment, the aluminum alloy part 901 with holes is blocked by a corresponding hole blocking component. At present, some aluminum alloy parts 901 are provided with precision shaft holes 902, and both ends of the precision shaft holes 902 are provided with first sealing grooves 903. When the rotating shaft is installed in the precision shaft hole 902 and put into use, a sealing ring is installed in the first sealing groove 903. Some aluminum alloy parts 901 are provided with threaded holes 905, and the threaded holes 905 and the corresponding second sealing grooves 906 are used to place gaskets and sealing rings, which are used to allow liquid to enter the threaded holes 905 after the threads and screws are assembled. In addition, after the surface oxidation treatment of the current aluminum alloy parts 901, due to An oxide film is generated on its surface with a thickness of up to one hundred to two hundred microns. For some precisely installed shaft holes, pin holes or threaded blind holes with high requirements, assembly failure may occur. Moreover, due to the characteristics of anodizing treatment that first corrodes and then regenerates, thread failure may occur. The currently used beeswax sealing operation is very easy to melt due to being put into an electrolytic cell with a high 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 hole, causing rust to the hole. At this time, a new hole plugging part is needed to effectively seal the hole to fill this gap.

[0045] Reference Figure 4 - Figure 8As shown, the first hole plugging member 600 includes a first hole cover 601, a first hole plug 602 is installed on one side of the first hole cover 601, a first chamber 607 is opened on the first hole cover 601, a plurality of first spray holes 603 are opened on the first hole cover 601, the first spray holes 603 are connected with the first chamber 607, a locking groove 605 is opened on one side of the first hole plug 602, a hollow first locking silicone ring 608 is installed in the locking groove 605, a plurality of first sealing rings 604 are 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 is connected with the first chamber 607, and the second channel 5052 is connected with the inside of the first locking silicone ring 608; The second hole plugging 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 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 are communicated with the second chamber 707, a plurality of second sealing rings 705 are installed on one side of the second hole cover 701, a locking buckle 706 is 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 is communicated with the second chamber 707, and the fourth channel 5062 is communicated with the inside of the first spring airbag 703; In this embodiment, the first hole blocking member 600 and the second hole blocking member 700 are used in combination to block the through hole. When the first hole blocking member 600 and the second hole blocking member 700 are used, the steps of use are as follows: Step 1: Inflate the first spring airbag 703 through the fourth channel 5062 to expand the first spring airbag 703, evacuate the first locking silicone ring 608 through the second channel 5052 to shrink the first locking silicone ring 608, place the second hole cover 701 and the first hole cover 601 on both sides of a through hole, and complete a primary locking of the first locking silicone ring 608 and the locking buckle 706; Step 2: After all the first hole-blocking members 600 and the second hole-blocking members 700 are placed, air is inflated into the first locking silicone ring 608 through the second channel 5052 to expand the first locking silicone ring 608 and then lock it with the locking buckle 706 (refer to Fig. 9 , the white solid arrow indicates the expansion direction of the first locking silicone ring 608); Step 3: evacuate the first spring airbag 703 through the fourth channel 5062, and the first spring airbag 703 will shrink, pulling the second hole cover 701 and the first hole cover 601 to shrink toward the precision shaft hole 902, and the sealing operation of the precision shaft hole 902 is completed through the sealing ring 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 anodizing operation (refer to Fig. 9 , the white dotted arrow is the flow direction of the gas, the black dotted 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); Step 4: When the workpiece is lifted from the oxidation tank 101 after the anodizing is completed, the third channel 5061 can be used to inflate the second chamber 707 so that air is ejected from the corresponding second spray hole 704 to discharge the residual electrolyte in the first sealing groove 903 (refer to Fig.10 , the white dotted arrow is the flow direction of the gas, the black dotted 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 small black arrow is the exhaust direction of the air).

[0046] Step 5: When the workpiece is placed in the primary washing tank for immersion, air can be inflated toward the inside of the second chamber 707 through the third channel 5061 again, so that air is ejected from the corresponding second spray hole 704. On the one hand, the first sealing groove 903 can be flushed to prevent electrolyte residue, and on the other hand, the ejected air can accelerate the exchange of water molecules in the primary washing tank, thereby accelerating the cleaning effect of the aluminum alloy workpiece; Step six, when the workpiece is taken out of the initial washing liquid and placed in the water washing tank, the first locking silicone ring 608 can be evacuated through the second channel 5052, so that the locking of the locking buckle 706 and the first locking silicone ring 608 fails. At this time, the interior of the second chamber 707 is inflated again through the third channel 5061, so that the air is ejected from the corresponding second spray hole 704. The inclined jet airflow assists the first hole cover 601 and the second hole cover 701 to separate from the precision shaft hole 902, so that the first hole blocking member 600 and the second hole blocking member 700 fall into the water washing tank. The corresponding spray holes on the first hole blocking member 600 and the second hole blocking member 700 will continue to spray air, so that the water washing tank is filled with foam and becomes a foam flushing tank, further improving the water washing effect of the water washing tank on the aluminum alloy workpiece.

[0047] The third hole plugging 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 via 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 silicone ring 807 is installed 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 on the third hole cover 801, and the third hole cover 80 1, a third chamber 805 is opened in the third hole cover 801, a plurality of third spray holes 804 are opened in the third hole cover 801, the third spray holes 804 are communicated with the third chamber 805, a fifth channel 5081, a sixth channel 5082 and a seventh channel 5083 are arranged in the third connecting pipe 508, the fifth channel 5081 is communicated with the third chamber 805, the sixth channel 5082 is communicated with the second locking silicone ring 807 through the fourth connecting pipe 806, and the seventh channel 5083 is communicated with the second spring airbag 803.

[0048] In this embodiment, the third hole blocking member 800 blocks the blind hole in the following steps: Step 1: Inflate the second spring airbag 803 through the seventh channel 5083 to expand the second spring airbag 803, and insert the second spring airbag 803 into the blind hole to be blocked; Step 2: Inflate the second locking silicone ring 807 through the sixth channel 5082 and the fourth connecting tube 806, so that the second locking silicone ring 807 expands, thereby fixing the second connecting plate 802 in the blind hole; Step 3: evacuate the second spring airbag 803 through the seventh channel 5083 to move the third hole cover 801 toward the depth of 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; Step 4: When the workpiece is lifted from the oxidation tank 101 after the 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 hole 804 to discharge the residual electrolyte in the second sealing groove 906; Step 5: When the workpiece is placed in the primary washing tank for immersion, air can be inflated toward the inside of the third chamber 805 through the fifth channel 5081 again, so that air is ejected from the corresponding third spray hole 804. On the one hand, the second sealing groove 906 can be flushed to prevent electrolyte residue, and on the other hand, the ejected air can accelerate the exchange of water molecules in the primary washing tank, thereby accelerating the cleaning effect of the aluminum alloy workpiece; Step six, when the workpiece is taken out of the primary washing liquid and placed in the water washing tank, the second locking silicone ring 807 can be evacuated through the sixth channel 5082 and the fourth connecting pipe 806, so that the locking between the second locking silicone 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 hole 804. The obliquely ejected gas can assist the third hole blocking member 800 to escape from the corresponding second sealing groove 906, so that the third hole blocking member 800 falls into the water washing tank. The corresponding spray hole on the third hole blocking member 800 will continue to spray air, so that the water washing tank is filled with foam and becomes a foam flushing tank, further improving the water washing effect of the water washing tank on the aluminum alloy workpiece.

[0049] By blocking the through holes with the first hole blocking member 600 and the second hole blocking member 700 and blocking the blind holes with the third hole blocking member 800, it is possible to effectively prevent the corresponding oxide layer from being generated in the holes, and effectively prevent the oxide layer generated in the holes from causing failure in parts assembly. In addition, the hole blocking assembly not only prevents the oxidizing liquid from entering the holes, but also can discharge the residual oxidizing liquid in the sealing grooves on both sides of the holes. Moreover, when washing the aluminum alloy parts, air can also be blown out through the spray holes on the hole blocking assembly to generate bubbles in the washing tank, thereby improving the washing effect.

[0050] 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. 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).

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 2, characterized in that: 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).

6. The aluminum alloy surface treatment oxidation device according to claim 5, characterized in that: 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).

7. The aluminum alloy surface treatment oxidation device according to claim 6, 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).

8. The aluminum alloy surface treatment oxidation device according to claim 7, 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).

9. The aluminum alloy surface treatment oxidation device according to claim 8, 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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