Aircraft component surface plating apparatus and method

Abstract

The application discloses a kind of surface spray equipment and spray method for aircraft parts, it is related to aircraft parts spray technical field, including suspension support, the suspension support is fixedly installed in the inner wall top of spray chamber, the bottom of the suspension support is fixedly installed with mounting plate, further include: elastic telescopic link, the fixed end of the elastic telescopic link is fixedly installed in the bottom of mounting plate;Activity disc, the activity disc is fixedly installed on the movable end of elastic telescopic link, and the activity disc is used to seal the side port of component;Two rotating plates, two the rotating plate rotation is installed in the outer wall of mounting plate;By the controllable thrust of activity disc, it can avoid that straight pipe component is accidentally deflected when spraying, and then using rotating rod accurately adjusts the angle of straight pipe component, so that the region to be sprayed is always in the comfortable working range of operator.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aircraft part spraying, in particular to a surface spraying equipment for aircraft parts and a spraying method. BACKGROUND

[0002] The surface spraying equipment for aircraft parts is a surface treatment equipment specially designed for high-precision and high-performance parts in the field of aerospace, and the core function thereof is to form a uniform and firm coating on the surface of the parts through a specific process to meet the stringent requirements of aviation operation.

[0003] The patent with the patent publication number CN212077140U relates to a spraying mechanism for aircraft parts, belonging to the field of aircraft part machining equipment, comprising a spraying main body and a spraying pipe; the left side of the spraying main body is provided with the spraying pipe, and the inside of the spraying main body is provided with a power supply, a metal wire, a wire feeding roller, a conductive block, a conductive nozzle and an air nozzle; the spraying mechanism for aircraft parts further comprises a protection device and an adjusting device; the protection device is in sliding cooperation with the spraying pipe; the adjusting device is fixedly connected to the spraying pipe and located inside the protection device, which reduces the contact between the spraying gas flow and the external environment, thereby reducing the probability of chemical reaction between the spraying gas flow and the external environment and reducing the influence on the corrosion resistance; the adjusting device adjusts the radiation angle of the spraying jet flow, so that the coating coverage area on the convex surface in unit time is reduced, and the purpose of avoiding uneven spraying is achieved.

[0004] In the above-mentioned patent, the radiation angle is adjusted to avoid uneven spraying, but when arc spraying is performed on the straight pipe parts of the aircraft, the suspended straight pipe parts are prone to deflection, which not only affects the spraying quality but also causes trouble to the operator, because the operator needs to constantly adjust the posture to ensure that the spraying gun and the straight pipe parts remain in a horizontal state for spraying, which increases the difficulty of spraying. SUMMARY

[0005] In view of the deficiencies of the prior art, the application provides a surface spraying equipment for aircraft parts and a spraying method, which solves the problems raised in the background art.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: a surface spraying equipment for aircraft parts, comprising a suspension support, the suspension support is fixedly installed on the inner wall top of the spraying chamber, the bottom of the suspension support is fixedly installed with a carrying plate, further comprising: an elastic telescopic rod, the fixed end of the elastic telescopic rod is fixedly installed on the bottom of the carrying plate; an activity disc, the activity disc is fixedly installed on the movable end of the elastic telescopic rod, the activity disc drives the movable end of the elastic telescopic rod to contract by pushing the activity disc, the activity disc is used for sealing one side port of the part; two rotating plates, the two rotating plates are rotatably installed on the outer wall of the carrying plate; a round rod, the round rod is rotatably penetrated on the surface of the rotating plate close to the activity disc, the round rod is used for suspending the part, the straight pipe part to be sprayed is sleeved on the round rod, so that the round rod is tightly combined with the inner wall of the straight pipe part; a fixed disc, the fixed disc is fixedly installed on the circumference of the round rod, and the fixed disc is used for sealing one side port of the part.

[0007] According to the above technical scheme, one side of the round rod close to the elastic telescopic rod is provided with a circular groove, the movable end of the elastic telescopic rod is combined with the inner wall of the circular groove, the movable end of the elastic telescopic rod is separated from the inner wall of the circular groove, and the limitation of the round rod is released.

[0008] According to the above technical scheme, the inner wall of the activity disc is combined with the circumference of the round rod, a plurality of friction plates are arranged on the circumference of the round rod, the friction plates are used for enhancing the static friction force between the round rod and the part, the friction plates arranged on the round rod can increase the friction force between the straight pipe part, and it is ensured that the round rod can accurately drive the straight pipe part to rotate synchronously.

[0009] According to the above technical scheme, the round rod away from the elastic telescopic rod is fixedly installed with a rotating rod, two rotating plates are fixedly installed with a handle between the two rotating plates, the handle is upwardly rotated, the handle drives the rotating plate to rotate upwardly, and the rotating plate drives the round rod and the fixed disc to move integrally.

[0010] According to the technical scheme, the self-locking device is arranged on the carrying plate and is used for locking the position of the rotating plate, the protection device is arranged on the self-locking device and is used for improving the safety, the self-locking device comprises a fixed frame, a sliding rod, a connecting plate, an inner frame, a movable block, a spring, a roller and a pull rod, the movable block compresses the spring to cause elastic deformation, the fixed frame is fixedly installed on the inner wall of the carrying plate, an arc-shaped sliding groove is formed in the inner wall of the fixed frame, the sliding rod is slidingly installed in the arc-shaped sliding groove of the fixed frame, the connecting plate is fixedly installed on the circumferential surface of the sliding rod, the connecting plate is fixedly connected with the rotating plate, the rotating plate drives the connecting plate to rotate, the connecting plate drives the sliding rod to slide along the arc-shaped sliding groove, the inner frame is fixedly installed on the inner wall of the fixed frame, the movable block is slidingly installed on the inner wall of the inner frame, the spring is arranged between the movable block and the inner frame, the roller is rotatably penetrated into the surface of the movable block, and the pull rod is fixedly installed on one side of the movable block close to the spring.

[0011] According to the technical scheme, the inner wall of the inner frame close to the pull rod is provided with a round hole, the pull rod is in contact with the inner wall of the round hole, the roller is in contact with the outer wall of the connecting plate, the connecting plate pushes the roller to the fixed frame, and the roller drives the movable block and the pull rod to move synchronously.

[0012] According to the technical scheme, the protection device comprises an outer frame, a hollow plate, a convex plate, a spring piece, a rectangular plate, a short rod, an abutting plate and a contact plate, the deformed spring piece drives the convex plate to move, the convex plate drives the rectangular plate to move away from the hollow plate, the outer frame is fixedly installed on one side of the fixed frame away from the inner frame, the hollow plate is fixedly installed on the inner wall of the outer frame, the convex plate is slidingly installed on the inner wall of the hollow plate, the spring piece is arranged between the convex plate and the outer frame, the rectangular plate is fixedly installed on the outer wall of the convex plate, the short rod is fixedly installed on one side of the rectangular plate close to the hollow plate, the abutting plate is fixedly installed on the circumferential surface of the short rod, the contact plate is fixedly installed on one side of the hollow plate close to the abutting plate, one side of the convex plate close to the connecting plate is provided with a rubber piece, the rubber piece is in contact with the connecting plate, and when the connecting plate moves away from the convex plate, the pressure applied to the convex plate gradually decreases.

[0013] According to the technical scheme, the abutting plate itself has elasticity, one side of the contact plate close to the abutting plate is provided with two convex blocks, the abutting plate vibrates after colliding with the convex blocks, and then the abutting plate is deformed and separated from the convex blocks.

[0014] A spraying method of a surface spraying device for aircraft parts, using the surface spraying device for aircraft parts, comprising the following steps:

[0015] Step one: first push the movable disc, make the movable end of the elastic telescopic rod contact with the circular groove, then rotate the rotating plate to the predetermined position, then put the straight pipe parts to be plated on the circular rod, make the circular rod closely fit with the inner wall of the straight pipe parts;

[0016] Step two: rotate the rotating plate, when the rotating plate is reset to the initial position, loosen the movable disc, the movable end of the elastic telescopic rod is automatically reset and contacts with the circular groove, at the same time, the movable disc applies controllable pushing force to one side port of the straight pipe parts, so that both side ports of the straight pipe parts are stably blocked;

[0017] Step three: carry out plating operation, the operator holds the spray gun according to the regulation, and carries out arc plating on the straight pipe parts in the hanging state;

[0018] Step four: after the plating is completed, the straight pipe parts are directly cooled, and after the straight pipe parts are cooled, the straight pipe parts are taken out to complete the recycling work.

[0019] The application provides a surface plating equipment for aircraft parts.

[0020] (1) The surface plating equipment for aircraft parts, the movable disc applies controllable pushing force to the straight pipe parts, so that both side ports of the straight pipe parts are stably blocked, through effectively shielding both side ports of the straight pipe parts in the hanging process, it is avoided that the plated layer material is sprayed to the inner wall of the parts during arc plating, so that the difficulty of subsequent cleaning of the inner wall is reduced, at the same time, the rotating rod is rotated, the circular rod is synchronously rotated to adjust the angle of the straight pipe parts, through the movable disc applying controllable pushing force, it can be avoided that the straight pipe parts are accidentally deflected during plating, and the angle of the straight pipe parts is accurately adjusted by using the rotating rod, so that the to-be-plated area is always in the comfortable working range of the operator, and then the plating quality is improved.

[0021] (2) The surface plating equipment for aircraft parts, the movable block blocks the rotation of the connecting plate, so that it is kept at a specified angle, through limiting the straight pipe parts at a specified height for hanging cooling, it can be avoided that the parts contact and collide with each other during the cooling process, the freshly plated coating is prevented from being scratched and damaged, the integrity of the coating is ensured, at the same time, after the straight pipe parts are cooled, the operator directly takes them out to complete the recycling work, through the simple and convenient recycling process, the risk that the parts are accidentally damaged in the taking-out link is reduced, and the quality stability of the plated aircraft parts is ensured.

[0022] (3) the aircraft parts with surface spraying equipment, the block on the contact plate collision produces vibration, through the vibration, ensure that the roller and the moving block can be accurate to separate contact and process does not appear to be stuck, ensure the continuity and accuracy of the suspension cooling operation, at the same time, the rubber sheet can alleviate the impact force generated by the contact, through the double buffering effect of rubber sheet and elastic sheet, the impact force of the connecting plate reset is greatly reduced, and the stable motion state can provide reliable guarantee for high quality spraying. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the schematic diagram of the whole structure of the present application;

[0024] Figure 2 is the schematic diagram of the whole structure of the present application;

[0025] Figure 3 is the schematic diagram of the position structure of the elastic telescopic rod and the circular groove of the present application;

[0026] Figure 4 is the schematic diagram of the friction plate structure of the present application;

[0027] Figure 5 is the schematic diagram of the position structure of the external frame of the present application;

[0028] Figure 6 is the schematic diagram of the internal structure of the fixed frame of the present application;

[0029] Figure 7 is the schematic diagram of the arc-shaped sliding groove structure of the present application;

[0030] Figure 8 is the schematic diagram of the spring structure of the present application;

[0031] Figure 9 is the schematic diagram of the internal structure of the external frame of the present application;

[0032] Figure 10 is the schematic diagram of the elastic sheet structure of the present application.

[0033] In the figure: 1, suspension support; 2, carrying plate; 3, elastic telescopic rod; 4, movable disc; 5, rotating plate; 6, round rod; 7, fixed disc; 8, rotating rod; 9, handle; 21, fixed frame; 22, sliding rod; 23, connecting plate; 24, inner frame; 25, movable block; 26, spring; 27, roller; 28, pull rod; 31, external frame; 32, hollow plate; 33, convex plate; 34, elastic sheet; 35, rectangular plate; 36, short rod; 37, resisting plate; 38, contact plate. DETAILED DESCRIPTION

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0035] Please refer to Figures 1-10 An embodiment of the present application is: a surface spraying equipment for aircraft parts, comprising a hanging support 1, the hanging support 1 is fixedly installed on the top of the inner wall of the spraying chamber, the bottom of the hanging support 1 is fixedly installed with a mounting plate 2, further comprising: an elastic telescopic rod 3, the fixed end of the elastic telescopic rod 3 is fixedly installed on the bottom of the mounting plate 2; a movable disc 4, the movable disc 4 is fixedly installed on the movable end of the elastic telescopic rod 3, the movable disc 4 is used for sealing one side port of the part; two rotating plates 5, the two rotating plates 5 are rotatably installed on the outer wall of the mounting plate 2; a round rod 6, the round rod 6 is rotatably penetrated through the surface of the rotating plate 5 close to the movable disc 4 side, the round rod 6 is used for hanging the part; a fixed disc 7, the fixed disc 7 is fixedly installed on the circumference of the round rod 6, the fixed disc 7 is used for sealing one side port of the part, through effectively shielding the two side ports of the straight pipe part in the hanging process, the plating layer material is prevented from being sprayed to the inner wall of the part when arc spraying.

[0036] One side of the round rod 6 close to the elastic telescopic rod 3 is provided with a circular groove, the movable end of the elastic telescopic rod 3 is attached to the inner wall of the circular groove, through the elasticity of the elastic telescopic rod 3 itself, accidental falling off can be prevented.

[0037] The inner wall of the movable disc 4 is attached to the circumference of the round rod 6, a plurality of friction plates are arranged on the circumference of the round rod 6, the friction plates are used for enhancing the static friction force between the round rod 6 and the part, through arranging the friction plates, it is ensured that the rotating rod 8 can accurately adjust the angle of the straight pipe part, so that the to-be-sprayed area is always within the comfortable working range of the operator.

[0038] The round rod 6 away from the elastic telescopic rod 3 is fixedly installed with a rotating rod 8, a handle 9 is fixedly installed between the two rotating plates 5, through additionally arranging the rotating rod 8, the operator can flexibly adjust the angle of the round rod 6, so as to accurately adjust the angle of the straight pipe part.

[0039] A spraying method of a surface spraying equipment for aircraft parts, using the above-mentioned surface spraying equipment for aircraft parts, comprising the following steps:

[0040] Step one: first push the movable disc 4, make the movable end of the elastic telescopic rod 3 and the circular groove are out of contact, then rotate the rotating plate 5 to the predetermined position, then put the straight pipe part to be sprayed on the round rod 6, make the round rod 6 and the inner wall of the straight pipe part closely attached;

[0041] Step two: rotate the rotating plate 5, when the rotating plate 5 is reset to the initial position, loosen the movable disc 4, the movable end of the elastic telescopic rod 3 is automatically reset and in contact with the circular groove, at the same time, the movable disc 4 applies a controllable pushing force to one side port of the straight pipe component, so that both side ports of the straight pipe component are stably blocked;

[0042] Step three: carry out the spraying operation, the operator holds the spray gun according to the procedure, and implements electric arc spraying on the straight pipe component in the hanging state;

[0043] Step four: after the spraying is completed, directly cool the straight pipe component, and after the straight pipe component is cooled, the straight pipe component is taken down to complete the recycling work.

[0044] When the embodiment works, the movable disc 4 is pushed away from the direction of the circular rod 6, the movable end of the elastic telescopic rod 3 is retracted, and in the retraction process, the movable end of the elastic telescopic rod 3 is out of contact with the circular groove; then the handle rod 9 is turned upward, the handle rod 9 drives the rotating plate 5 to turn upward, the rotating plate 5 drives the circular rod 6 and the fixed disc 7 to move as a whole; when the rotating plate 5 is turned to the predetermined position, the straight pipe component to be sprayed is sleeved on the circular rod 6, so that the circular rod 6 is tightly attached to the inner wall of the straight pipe component, and one side port of the straight pipe component is attached to the fixed disc 7; the handle rod 9 is rotated to reset to the initial position, and then the movable disc 4 is loosened, so that the movable end of the elastic telescopic rod 3 is automatically reset and in contact with the circular groove, and the movable end resets to drive the movable disc 4 to move synchronously, the movable disc 4 moves to contact the other side port of the straight pipe component, and applies a controllable pushing force, so that both side ports of the straight pipe component are stably blocked, through effectively shielding both side ports of the straight pipe component in the hanging process, it is avoided that the plated layer material is sprayed to the inner wall of the component during electric arc spraying, thereby reducing the difficulty of subsequent cleaning of the inner wall;

[0045] When the spraying operation is carried out, the operator holds the spray gun according to the procedure, and implements electric arc spraying on the straight pipe component in the hanging state, and during the spraying process, the controllable pushing force applied by the movable disc 4 can prevent the straight pipe component from deflecting during spraying; when it is necessary to adjust the angle of the straight pipe component, the operator first pushes the movable disc 4 to remove the pushing force applied by the movable disc 4 to the straight pipe component, and then rotates the rotating rod 8, the rotating rod 8 drives the circular rod 6 and the fixed disc 7 to rotate as a whole, and the friction plate arranged on the circular rod 6 can increase the friction between the circular rod 6 and the straight pipe component, so as to ensure that the circular rod 6 can accurately drive the straight pipe component to rotate synchronously; after adjusting to the preset angle, the operator loosens the movable disc 4 to reset to the initial position, and re-applies a controllable pushing force to the straight pipe component to stabilize the straight pipe component, and then the operator continues the spraying operation, and through the controllable pushing force applied by the movable disc 4, it can be avoided that the straight pipe component accidentally deflects during spraying, and the angle of the straight pipe component is accurately adjusted by using the rotating rod 8, so that the to-be-sprayed area is always within the comfortable working range of the operator, thereby improving the spraying quality.

[0046] Please refer toFigures 1-10 On the basis of the above-mentioned embodiments, in another embodiment of the present application, the mounting plate 2 is provided with a self-locking device for locking the position of the rotating plate 5, and the self-locking device is provided with a protection device for improving the safety of use; the self-locking device comprises a fixed frame 21, a sliding rod 22, a connecting plate 23, an inner frame 24, a movable block 25, a spring 26, a roller 27 and a pull rod 28, the fixed frame 21 is fixedly installed on the inner wall of the mounting plate 2, an arc-shaped sliding groove is formed in the inner wall of the fixed frame 21, the sliding rod 22 is slidingly installed in the arc-shaped sliding groove of the fixed frame 21, the connecting plate 23 is fixedly installed on the circumferential surface of the sliding rod 22, the connecting plate 23 is fixedly connected with the rotating plate 5, the inner frame 24 is fixedly installed on the inner wall of the fixed frame 21, the movable block 25 is slidingly installed on the inner wall of the inner frame 24, the spring 26 is arranged between the movable block 25 and the inner frame 24, the roller 27 is rotatably penetrated through the surface of the movable block 25, and the pull rod 28 is fixedly installed on one side of the movable block 25 close to the spring 26; by limiting the straight pipe components at a specified height for suspension cooling, the mutual contact and collision of the components during the cooling process can be avoided.

[0047] A round hole is formed in the side of the inner frame 24 close to the pull rod 28, the pull rod 28 is in contact with the inner wall of the round hole, and the roller 27 is in contact with the outer wall of the connecting plate 23; through the simple and convenient recovery process, the risk of accidental damage of the components in the taking-out link can be reduced, and the quality stability of the completed aircraft component spraying can be ensured.

[0048] The protection device comprises an external frame 31, a hollow plate 32, a convex plate 33, an elastic sheet 34, a rectangular plate 35, a short rod 36, an abutting plate 37 and a contact plate 38, the external frame 31 is fixedly installed on the side of the fixed frame 21 away from the inner frame 24, the hollow plate 32 is fixedly installed on the inner wall of the external frame 31, the convex plate 33 is slidingly installed on the inner wall of the hollow plate 32, the elastic sheet 34 is arranged between the convex plate 33 and the external frame 31, the rectangular plate 35 is fixedly installed on the outer wall of the convex plate 33, the short rod 36 is fixedly installed on the side of the rectangular plate 35 close to the hollow plate 32, the abutting plate 37 is fixedly installed on the circumferential surface of the short rod 36, and the contact plate 38 is fixedly installed on the side of the hollow plate 32 close to the abutting plate 37; a rubber sheet is arranged on the side of the convex plate 33 close to the connecting plate 23, and the rubber sheet is in contact with the connecting plate 23; through the double buffering action of the rubber sheet and the elastic sheet 34, the impact force when the connecting plate 23 is reset is greatly reduced, and the stable motion state can provide reliable guarantee for high-quality spraying.

[0049] The abutting plate 37 itself has elasticity, and two protrusions are arranged on the side of the contact plate 38 close to the abutting plate 37; through vibration, it is ensured that the roller 27 and the movable block 25 can accurately separate from each other without appearing to be stuck during the process, and the continuity and accuracy of the suspension cooling operation are ensured.

[0050] When the present embodiment works, after the spraying is finished, the operator pushes the movable disc 4 to remove the contact between the movable end of the elastic telescopic rod 3 and the circular groove, then rotates the rotary plate 5 upwards, the rotary plate 5 drives the straight pipe components to rotate synchronously through the circular rod 6, at the same time, the rotary plate 5 also drives the adapter plate 23 to rotate, the adapter plate 23 drives the slide rod 22 to slide along the arc-shaped sliding groove, at the same time, the adapter plate 23 pushes the roller 27 towards the fixed frame 21, the roller 27 drives the movable block 25 and the pull rod 28 to move synchronously, in this process, the movable block 25 compresses the spring 26, so that the spring 26 is elastically deformed, until the adapter plate 23 rotates to the specified angle and is separated from the roller 27;

[0051] At this time, the spring 26 restores to push the movable block 25 and the pull rod 28 to reset, after the movable block 25 resets, the movable block 25 can block the adapter plate 23 from rotating back, so as to limit the rotary plate 5 and keep the rotary plate 5 at the specified angle, through limiting the straight pipe components at the specified height for suspension cooling, the mutual contact and collision of the components in the cooling process can be avoided, the freshly sprayed coating can be prevented from being scratched and damaged, the integrity of the coating is ensured, after the straight pipe components are cooled, the operator can directly take out the straight pipe components, so that the recycling work is completed; when the spraying operation is performed again, the operator puts the new straight pipe components on the circular rod 6;

[0052] Then the pull rod 28 is pulled away from the inner frame 24, the pull rod 28 drives the movable block 25 to move synchronously, the movable block 25 compresses the spring 26 in the movement and removes the block to the adapter plate 23, so that the rotary plate 5 can rotate back to the initial position; when the adapter plate 23 completes the reset, the pull rod 28 is released, the spring 26 pushes the movable block 25 to reset, the movable block 25 drives the roller 27 to reset synchronously, so as to prepare for the next suspension cooling, through the recycling process, the risk of accidental damage of the components in the taking-out link can be reduced, and the quality stability of the sprayed aircraft components is ensured;

[0053] When the adapter plate 23 moves away from the convex plate 33, the pressure applied by the adapter plate 23 to the convex plate 33 gradually decreases, at this time, the deformed spring sheet 34 pushes the convex plate 33 to move, so as to drive the convex plate 33 to drive the rectangular plate 35 to move away from the hollow plate 32, in the movement process, the rectangular plate 35 drives the short rod 36 and the abutting plate 37 to move synchronously, the abutting plate 37 collides with the convex block on the contact plate 38 in the movement to produce vibration, then the abutting plate 37 is bent and deformed and separated from the convex block, the vibration acts on the fixed frame 21, so that the roller 27 and the movable block 25 can smoothly separate from each other, so as to prevent the roller 27 and the movable block 25 from being stuck in the sliding process, when the spring sheet 34 completes the reset, the convex plate 33 stays at the specified position, through the vibration, it is ensured that the roller 27 and the movable block 25 can accurately separate from each other and there is no sticking in the process, the continuity and accuracy of the suspension cooling operation are ensured, when the adapter plate 23 resets, the adapter plate 23 contacts the rubber sheet of the convex plate 33 in the rotating process, the rubber sheet can alleviate the impact force generated in the contact by virtue of the elasticity of the rubber sheet;

[0054] Subsequently, the adapter plate 23 pushes the convex plate 33 to move towards the hollow plate 32, and the convex plate 33 extrudes the elastic sheet 34 during the movement, the deformed elastic sheet 34 applies elastic resistance to the convex plate 33, and then slows down the moving speed of the convex plate 33, so as to reduce the speed of the adapter plate 23 during the resetting; at the same time, the convex plate 33 drives the rectangular plate 35 to move synchronously, the rectangular plate 35 drives the short rod 36 and the abutting plate 37 to move synchronously, the abutting plate 37 collides with the convex block on the contact plate 38 again to generate vibration, and through the double buffering effect of the rubber sheet and the elastic sheet 34, the impact force of the adapter plate 23 during the resetting is greatly reduced, and the stable motion state can provide reliable guarantee for high-quality spraying.

[0055] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An apparatus for surface coating of aircraft parts, comprising a suspension bracket (1), characterized in that The suspension support (1) is fixedly installed on the top of the inner wall of the spraying chamber, the bottom of the suspension support (1) is fixedly installed with a mounting plate (2), further comprising: An elastic telescopic rod (3), the fixed end of the elastic telescopic rod (3) is fixedly installed on the bottom of the mounting plate (2); An activity disc (4), the activity disc (4) is fixedly installed on the movable end of the elastic telescopic rod (3), the activity disc (4) is used for sealing the side port of the part; Two rotating plates (5), the two rotating plates (5) are rotatably installed on the outer wall of the mounting plate (2); A round rod (6), the round rod (6) is rotatably penetrated on the surface of the rotating plate (5) near the activity disc (4), the round rod (6) is used for suspending the part; A fixed disc (7), the fixed disc (7) is fixedly installed on the circumference of the round rod (6), the fixed disc (7) is used for sealing the side port of the part; The side of the round rod (6) away from the elastic telescopic rod (3) is fixedly installed with a rotating rod (8), two holding rods (9) are fixedly installed between the two rotating plates (5).

2. The apparatus according to claim 1, wherein: The side of the round rod (6) near the elastic telescopic rod (3) is provided with a round groove, the movable end of the elastic telescopic rod (3) is attached to the inner wall of the round groove.

3. The apparatus according to claim 2, wherein: The inner wall of the activity disc (4) is attached to the circumference of the round rod (6), a plurality of friction plates are arranged on the circumference of the round rod (6), the friction plates are used for enhancing the static friction force between the round rod (6) and the part.

4. The surface spraying equipment for aircraft parts according to claim 3, characterized in that: wherein, The mounting plate (2) is provided with a self-locking device for locking the position of the rotating plate (5), the self-locking device is provided with a protection device for improving the safety of use.

5. The apparatus according to claim 4, wherein: The self-locking device comprises a fixed frame (21), a sliding rod (22), a connecting plate (23), an inner frame (24), a movable block (25), a spring (26), a roller (27) and a pull rod (28), the fixed frame (21) is fixedly installed on the inner wall of the mounting plate (2), the inner wall of the fixed frame (21) is provided with an arc-shaped sliding groove, the sliding rod (22) is slidably installed on the arc-shaped sliding groove of the fixed frame (21), the connecting plate (23) is fixedly installed on the circumference of the sliding rod (22), the connecting plate (23) is fixedly connected with the rotating plate (5), the inner frame (24) is fixedly installed on the inner wall of the fixed frame (21), the movable block (25) is slidably installed on the inner wall of the inner frame (24), the spring (26) is arranged between the movable block (25) and the inner frame (24), the roller (27) is rotatably penetrated on the surface of the movable block (25), and the pull rod (28) is fixedly installed on the side of the movable block (25) near the spring (26).

6. The apparatus according to claim 5, wherein: The side of the inner frame (24) near the pull rod (28) is provided with a round hole, the pull rod (28) is in contact with the inner wall of the round hole, and the roller (27) is in contact with the outer wall of the connecting plate (23).

7. The apparatus according to claim 6, wherein: The protection device comprises an external frame (31), a hollow plate (32), a convex plate (33), an elastic sheet (34), a rectangular plate (35), a short rod (36), a resisting plate (37) and a contact plate (38), the external frame (31) is fixedly installed on one side of the fixed frame (21) away from the inner frame (24), the hollow plate (32) is fixedly installed on the inner wall of the external frame (31), the convex plate (33) is slidingly installed on the inner wall of the hollow plate (32), the elastic sheet (34) is arranged between the convex plate (33) and the external frame (31), the rectangular plate (35) is fixedly installed on the outer wall of the convex plate (33), the short rod (36) is fixedly installed on one side of the rectangular plate (35) close to the hollow plate (32), the resisting plate (37) is fixedly installed on the circumferential surface of the short rod (36), the contact plate (38) is fixedly installed on one side of the hollow plate (32) close to the resisting plate (37), one side of the convex plate (33) close to the connecting plate (23) is provided with a rubber sheet, and the rubber sheet is in contact with the connecting plate (23).

8. The apparatus according to claim 7, wherein: The resisting plate (37) is elastic, and one side of the contact plate (38) close to the resisting plate (37) is provided with two convex blocks.

9. A method of spraying using the surface spraying apparatus for aircraft parts according to claim 8, characterized by, The method comprises the following steps: Step one: first push the movable disc (4), so that the movable end of the elastic telescopic rod (3) is separated from the circular groove, then rotate the rotating plate (5) to a predetermined position, then put the straight pipe part to be plated on the circular rod (6), so that the circular rod (6) is closely attached to the inner wall of the straight pipe part; Step two: rotate the rotating plate (5), when the rotating plate (5) is reset to the initial position, release the movable disc (4), the movable end of the elastic telescopic rod (3) is automatically reset and in contact with the circular groove, at the same time, the movable disc (4) applies a controllable pushing force to one side of the straight pipe part, so that both sides of the straight pipe part are stably blocked; Step three: carry out plating operation, the operator holds the spray gun according to the regulation, and carries out arc plating on the straight pipe part in the hanging state; Step four: after the plating is completed, directly cool the straight pipe part, and after the straight pipe part is cooled, the straight pipe part is taken down to complete the recycling work.

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