Aircraft landing gear cylinder electroplating auxiliary device

Abstract

The utility model relates to the technical field of aircraft landing gear cylinder electroplating, in particular to an aircraft landing gear cylinder electroplating auxiliary device which comprises a first hoisting clamp, a second hoisting clamp and an auxiliary anode, and a cylinder body is arranged on the inner side of the first hoisting clamp. According to the electroplating auxiliary tool for the aircraft landing gear cylinder, hanging and fixing of the landing gear cylinder can be conveniently and reliably completed, electroplating operation can be completed on the outer surfaces of a main landing inner cylinder, a main landing outer cylinder, a front landing inner cylinder and a front landing outer cylinder and designated areas of the inner surfaces, assembling is easy, and operation is convenient; the auxiliary anodes can provide continuous strong current for the electroplating area, so that the electroplating effect is more uniform, and the problems that when an existing device is used for electroplating the undercarriage cylinder, due to the fact that the size of the existing device is large, clamping and fixing of parts are difficult, and meanwhile the current intensity and the surface contact area directly affect whether the cylinder wall is electroplated uniformly and completely or not are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating of aircraft landing gear cylinders, and particularly relates to an electroplating auxiliary device for aircraft landing gear cylinders. Background Technique

[0002] The landing gear is a component for the aircraft to taxi, take off and land, and support the whole aircraft. Among them, the landing gear cylinder is the main part, which is closely related to the shock absorption performance of the aircraft shock absorption system. During the use of the landing gear cylinder, due to air entering or compressed air being filled inside, the change of environmental temperature during the takeoff and landing of the aircraft will cause the air to condense into water vapor and attach to the cylinder wall to form local micro-batteries, which will cause corrosion. At the same time, the frequent expansion and contraction of the actuator cylinder during use will cause wear and scratches on the cylinder wall.

[0003] When electroplating the landing gear cylinder, due to its large volume, it is difficult to clamp and fix the parts. At the same time, the strength of the current and the surface contact area will also directly affect whether the electroplating on the cylinder wall is uniform and complete.

[0004] Therefore, the technical personnel in this field have provided an electroplating auxiliary device for aircraft landing gear cylinders to solve the problems raised in the above background technique. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an electroplating auxiliary device for aircraft landing gear cylinders, which includes a first lifting fixture, a second lifting fixture and an auxiliary anode. A cylinder body is arranged inside the first lifting fixture;

[0006] The auxiliary anode includes an anode conducting rod, a limiting block, an anode barrel, an electroplating area limiting plate and a second anode. The bottom end of the anode conducting rod is welded with an anode barrel with electroplating area limiting plates arranged on both the top surface and the bottom surface. There is a spacing between the outer surface of the anode barrel and the inner surface of the cylinder body, and there is a gap between the electroplating area limiting plate and the inner surface of the cylinder body;

[0007] A connecting cylinder is arranged at the bottom of the cylinder body. A third lifting fixture is arranged on the outer side wall of the cylinder body. A connecting piece is arranged on the outer side wall of the cylinder body. A fixing bolt is arranged on the connecting piece. A slot is arranged inside the connecting piece, and a guiding piece is inserted into the slot;

[0008] The auxiliary tool for the main landing gear outer cylinder includes a third lifting fixture. A limiting groove is arranged at the bottom of the cylinder body. Fasteners one are arranged on both sides of the limiting groove. A supporting piece is arranged at the bottom of the cylinder body. Fourth lifting fixtures are arranged on the left and right sides of the cylinder body. Supporting pieces are arranged at the left and right ends of the bottom of the cylinder body. A cross plate is arranged inside the supporting pieces. The bottom of the supporting pieces and the cross plate is provided with a bottom plate. A fixing block is arranged at the lower end of the bottom plate. An anti-slip pad is arranged at the lower end of the fixing block. Fasteners two are arranged on the cross plate;

[0009] The lower end of the anode conducting rod extends into the front landing gear outer cylinder. The second anode located at the cylinder opening is fixedly connected to the anode conducting rod, and there is a gap between the outer surface of the second anode and the inner surface of the front landing gear outer cylinder. The bottom end of the anode conducting rod is welded with an anode barrel with electroplating area limiting plates arranged on both the top surface and the bottom surface. There is a gap between the outer surface of the anode barrel and the inner surface of the front landing gear outer cylinder, and there is a clearance between the electroplating area limiting plate and the inner surface of the front landing gear outer cylinder.

[0010] Preferably, the first lifting fixture is fixedly installed on the outer side of the cylinder opening end of the cylinder body and is electrically connected to the cylinder body. It includes a first conductive seat, the first conductive seat is a hoop, and the first conductive rod and the second conductive rod with a barbed top. The first conductive rod and the second conductive rod form a juxtaposed hook structure and they face in opposite directions.

[0011] Preferably, the top part of the anode conducting rod is an exposed conductive section, and the remaining part is coated with insulating epoxy resin. The lower end of the anode conducting rod extends into the cylinder body, and the second anode located at the cylinder opening is fixedly connected to the anode conducting rod, and there is a gap between the outer surface of the second anode and the inner surface of the cylinder body.

[0012] Preferably, the number of the first fasteners is two, and the second anode electroplates the inner surface at the position of the cylinder opening. The anode conducting rod passes through the limit block and is fixed to it. The top part of the anode conducting rod is an exposed conductive section, and the remaining part is coated with insulating epoxy resin.

[0013] The technical effects and advantages of the present invention:

[0014] The electroplating auxiliary tooling for the aircraft landing gear cylinder of the present invention can conveniently and reliably complete the hanging and fixing of the landing gear cylinder, and can respectively complete the electroplating operations on the outer surfaces and the specified areas of the inner surfaces of the main landing gear inner cylinder, the main landing gear outer cylinder, the front landing gear inner cylinder, and the front landing gear outer cylinder. The assembly is simple and the operation is convenient; the auxiliary anode provided can provide a continuous strong current for the electroplating area, making the electroplating effect more uniform, and solving the problems that in the existing device for electroplating the landing gear cylinder, due to its large volume, it is relatively difficult to clamp and fix the parts, and at the same time, the strength of the current and the surface contact area will directly affect whether the electroplating of the cylinder wall is uniform and complete. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of an electroplating auxiliary device for an aircraft landing gear cylinder provided by an embodiment of the present application Figure 1 ;

[0016] Figure 2 is a schematic structural diagram of an electroplating auxiliary device for an aircraft landing gear cylinder provided by an embodiment of the present application Figure 2 ;

[0017] Figure 3It is a schematic structural diagram of a limit groove, a fixing member, a fastening member, a bottom plate, a fixing block, and an anti-slip pad in an electroplating auxiliary device for an aircraft landing gear cylinder provided by an embodiment of the present application;

[0018] Figure 4 It is a schematic structural diagram of an auxiliary anode in an electroplating auxiliary device for an aircraft landing gear cylinder provided by an embodiment of the present application;

[0019] Figure 5 It is a schematic structural diagram of a guiding member in an electroplating auxiliary device for an aircraft landing gear cylinder provided by an embodiment of the present application;

[0020] Figure 6 It is an electroplating auxiliary device for an aircraft landing gear cylinder provided by an embodiment of the present application Figure 5 and is a schematic structural diagram of the position A therein.

[0021] In the figure: 1, the first lifting jig; 11, the first conductive seat; 12, the first conductive rod; 13, the second conductive rod; 2, the cylinder body; 3, the second lifting jig; 4, the connecting cylinder; 5, the auxiliary anode; 51, the anode conductive rod; 52, the limit block; 53, the anode barrel; 54, the electroplating area limiting plate; 55, the second anode; 6, the third lifting jig; 7, the connecting member; 8, the fixing bolt; 9, the slot; 10, the guiding member; 14, the limit groove; 15, the first fastening member; 16, the fourth lifting jig; 17, the supporting member; 18, the cross plate; 19, the second fastening member; 20, the bottom plate; 21, the fixing block; 22, the anti-slip pad. Detailed implementation manners

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes. Embodiment

[0023] Please refer to Figures 1 to 6 , in this embodiment, an electroplating auxiliary device for an aircraft landing gear cylinder is provided, including a first lifting jig 1, a second lifting jig 3, and an auxiliary anode 5. A cylinder body 2 is arranged inside the first lifting jig 1. The first lifting jig 1 is fixedly installed on the outer side of the cylinder mouth end of the cylinder body 2 and is electrically connected to the cylinder body 2. It includes a first conductive seat 11. The first conductive seat 11 is a hoop, with a first conductive rod 12 and a second conductive rod 13 with an inverted hook shape at the top. The first conductive rod 12 and the second conductive rod 13 form a parallel hook structure and face in opposite directions;

[0024] The auxiliary anode 5 includes an anode conductive rod 51, a limit block 52, an anode barrel 53, an electroplating area limiting plate 54 and a second anode 55. The anode conductive rod 51 is fixed on the inner axis of the cylinder body 2. The top part of the anode conductive rod 51 is an exposed conductive section, and the remaining part is coated with insulating epoxy resin. The lower end of the anode conductive rod 51 extends into the cylinder body 2. The second anode 55 at the cylinder mouth is fixedly connected to the anode conductive rod 51, and there is a gap between the outer surface of the second anode 55 and the inner surface of the cylinder body 2. The bottom end of the anode conductive rod 51 is welded with an anode barrel 53 with electroplating area limiting plates 54 arranged on both the top and bottom surfaces. There is a gap between the outer surface of the anode barrel 53 and the inner surface of the cylinder body 2, and there is a gap between the electroplating area limiting plate 54 and the inner surface of the cylinder body 2;

[0025] A connecting cylinder 4 is arranged at the bottom of the cylinder body 2. A third lifting fixture 6 is arranged on the outer side wall of the cylinder body 2. A connecting piece 7 is arranged on the outer side wall of the cylinder body 2. A fixing bolt 8 is arranged on the connecting piece 7. A slot 9 is arranged inside the connecting piece 7, and a guiding piece 10 is inserted into the slot 9. By hanging the cylinder body 2 on the cross bar through the first conductive rod 12 and the second conductive rod 13, the cylinder body 2 is integrally immersed in the electroplating solution. The first conductive rod 12, the second conductive rod 13, the limit block 52 and the conductive section at the top of the anode conductive rod 51 are exposed above the electroplating liquid surface. The positive pole of the power supply is connected to the conductive section of the anode conductive rod 51, and the negative pole is connected to the first conductive rod 12 and the second conductive rod 13. After the power is turned on for electroplating, the area between the two electroplating area limiting plates 54 is the actual electroplating area of the inner surface. The length of the anode conductive rod 51 suitable for the position requirements of the actual inner surface electroplating area can be selected;

[0026] The main outer cylinder auxiliary tooling includes a third lifting fixture 6. A limit groove 14 is arranged at the bottom of the cylinder body 2. Two fasteners one 15 are arranged on both sides of the limit groove 14. A support member 17 is arranged at the bottom of the cylinder body 2. Fourth lifting fixtures 16 are arranged on the left and right sides of the cylinder body 2. Support members 17 are arranged at the left and right ends of the bottom of the cylinder body 2. A cross plate 18 is arranged inside the support member 17. A bottom plate 20 is arranged at the bottom of the support member 17 and the cross plate 18. A fixing block 21 is arranged at the lower end of the bottom plate 20. An anti-slip pad 22 is arranged at the lower end of the fixing block 21. Fasteners two 19 are arranged on the cross plate 18;

[0027] When starting the inner surface of the front lifting inner cylinder before electroplating, place the front lifting inner cylinder upright and install the lifting fixture auxiliary anode 5 separately. After starting electroplating by energization, the area between the internal step of the front lifting inner cylinder and the electroplating area limiting plate 54 is the actual electroplating area of the inner surface; the second anode 55 electroplates the inner surface at the position of the cylinder mouth. The anode conductive rod 51 passes through the limiting block 52 and is fixed thereto. The top part of the anode conductive rod 51 is an exposed conductive section, and the remaining part is coated with insulating epoxy resin. The lower end of the anode conductive rod 51 extends into the front lifting outer cylinder. The second anode 55 at the cylinder mouth is fixedly connected to the anode conductive rod 51, and there is a gap between the outer surface of the second anode 55 and the inner surface of the front lifting outer cylinder. The bottom end of the anode conductive rod 51 is welded with an anode barrel 53 with electroplating area limiting plates 54 provided on both the top and bottom surfaces. There is a gap between the outer surface of the anode barrel 53 and the inner surface of the front lifting outer cylinder, and there is a gap between the electroplating area limiting plate 54 and the inner surface of the front lifting outer cylinder. After starting electroplating by energization, the area between the two electroplating area limiting plates 54 is the actual electroplating area of the inner surface. An anode conductive rod 51 with a suitable length can be selected according to the position requirements of the actual inner surface electroplating area; the second anode 55 electroplates the inner surface at the position of the cylinder mouth. After starting electroplating by energization, the outer surface of the front lifting outer cylinder can be conveniently electroplated.

[0028] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. An electroplating auxiliary device for an aircraft landing gear cylinder, comprising a first lifting fixture (1), a second lifting fixture (3) and an auxiliary anode (5), characterized in that, Inside the first lifting fixture (1), there is a cylinder body (2). The auxiliary anode (5) includes an anode conducting rod (51), a limit block (52), an anode barrel (53), an electroplating area limiting plate (54), and a second anode (55). At the bottom end of the anode conducting rod (51), there is welded an anode barrel (53) with electroplating area limiting plates (54) provided on both the top and bottom surfaces. There is a gap between the outer surface of the anode barrel (53) and the inner surface of the cylinder body (2), and there is a clearance between the electroplating area limiting plate (54) and the inner surface of the cylinder body (2). At the bottom of the cylinder body (2), there is an adapter cylinder (4). On the outer side wall of the cylinder body (2), there is a third lifting fixture (6). On the outer side wall of the cylinder body (2), there is a connecting piece (7). On the connecting piece (7), there is a fixing bolt (8). Inside the connecting piece (7), there is a slot (9), and a guiding piece (10) is inserted into the slot (9). The main hoist outer cylinder auxiliary tooling includes a third lifting fixture (6). At the bottom of the cylinder body (2), there is a limit groove (14). On both sides of the limit groove (14), there are fasteners one (15). At the bottom of the cylinder body (2), there is a support piece (17). On the left and right sides of the cylinder body (2), there are fourth lifting fixtures (16). At the left and right ends of the bottom of the cylinder body (2), there are support pieces (17). Inside the support pieces (17), there is a horizontal plate (18). At the bottom of the support pieces (17) and the horizontal plate (18), there is a bottom plate (20). At the lower end of the bottom plate (20), there is a fixing block (21). At the lower end of the fixing block (21), there is an anti-slip pad (22). On the horizontal plate (18), there are fasteners two (19). The lower end of the anode conducting rod (51) extends into the front hoist outer cylinder. The second anode (55) located at the cylinder opening is fixedly connected to the anode conducting rod (51), and there is a gap between the outer surface of the second anode (55) and the inner surface of the front hoist outer cylinder. At the bottom end of the anode conducting rod (51), there is welded an anode barrel (53) with electroplating area limiting plates (54) provided on both the top and bottom surfaces. There is a gap between the outer surface of the anode barrel (53) and the inner surface of the front hoist outer cylinder, and there is a clearance between the electroplating area limiting plate (54) and the inner surface of the front hoist outer cylinder.

2. The electroplating auxiliary device for an aircraft landing gear cylinder according to claim 1, wherein, The first lifting fixture (1) is fixedly installed on the outer side of the cylinder opening end of the cylinder body (2) and is electrically connected to the cylinder body (2), including a first conductive seat (11). The first conductive seat (11) is a hoop, and the top is a first conductive rod (12) and a second conductive rod (13) with an inverted hook shape.

3. An electroplating auxiliary device for an aircraft landing gear cylinder according to claim 2, characterized in that, The first conductive rod (12) and the second conductive rod (13) form a juxtaposed hook structure and they face in opposite directions.

4. An electroplating auxiliary device for an aircraft landing gear cylinder according to claim 3, characterized in that, The top part of the anode conducting rod (51) is an exposed conductive section, and the remaining part is coated with insulating epoxy resin.

5. An electroplating auxiliary device for an aircraft landing gear cylinder according to claim 4, characterized in that, The lower end of the anode conducting rod (51) extends into the cylinder body (2). The second anode (55) located at the cylinder opening is fixedly connected to the anode conducting rod (51), and there is a gap between the outer surface of the second anode (55) and the inner surface of the cylinder body (2).

6. The electroplating auxiliary device for an aircraft landing gear cylinder according to claim 1, wherein, The number of the fasteners one (15) is two, and the second anode (55) electroplates the inner surface at the cylinder opening position.

7. An electroplating auxiliary device for an aircraft landing gear cylinder according to claim 5, characterized in that, The anode conductive rod (51) passes through the limit block (52) and is fixed thereto. The top part of the anode conductive rod (51) is an exposed conductive section, and the remaining part is coated with insulating epoxy resin.

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