Surface treatment device for aircraft part broken pin

Abstract

The invention relates to an aircraft part broken pin surface treatment device which comprises a heating box, a heating combined panel is fixed to the top wall in the heating box, a partition plate is fixed to the inner wall of the heating box, a plurality of parallel rotating rollers are arranged above the partition plate, and a first lifting plate, a second lifting plate and a reciprocating lead screw are arranged below the partition plate. The reciprocating lead screw is in transmission connection with the first lifting plate and the second lifting plate, a plurality of first ejector rods are fixed to the first lifting plate, a plurality of second ejector rods are fixed to the second lifting plate, the first ejector rods and the second ejector rods penetrate through and are slidably connected to the partition plate, and the first ejector rods and the second ejector rods alternately penetrate through gaps among the multiple rotating rollers. A fixed shaft on a second cantilever on the outer side wall of the heating box is rotationally connected with a driving wheel, the driving wheel is in transmission connection with all the rotating rollers through a belt, and the driving wheel is in transmission connection with a reciprocating lead screw through a first shaft rod. According to the aircraft part broken pin surface treatment device, heat treatment on the surfaces of broken pins one by one is achieved, and the surfaces of the broken pins can be cleaned.

Description

Technical Field

[0001] The invention relates to the field of aircraft component processing, in particular to a surface treatment device for a breakaway pin of an aircraft component. Background Art

[0002] In order to avoid the failure of the landing gear during takeoff and landing, which may cause damage to the surrounding wing and fuselage structures, and to improve safety, designing a weak area at the landing gear joint as an emergency disconnection measure is one of the main means of modern civil aircraft. The common weak structure is in the form of an axle pin, so it is called an emergency disconnect pin. Existing disconnect pins need to be heat treated before use, but most of the heat treatment is direct heating. After the disconnect pin is cooled during production, it will be affected by the environment and cause the temperature of the disconnect pin to be low. Too fast direct heating can easily affect the quality of the disconnect pin, so it needs to be processed and improved. In view of this, we propose a surface treatment device for aircraft component disconnect pins. Summary of the invention

[0003] The object of the present invention is to provide a surface treatment device for a breakaway pin of an aircraft component to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface treatment device for a breakaway pin of an aircraft component, comprising a heating box with a feeding pipe and a discharging port, a heating combination panel is fixed on the top wall inside the heating box, an inclined partition is fixed on the inner wall of the heating box, a plurality of parallel rollers are arranged above the partition, and the rollers are rotatably connected to the inner wall of the heating box with a fixed axis, a lifting plate 1, a lifting plate 2 and a reciprocating screw are arranged below the partition, and the reciprocating screw is transmission-connected to the lifting plate 1 and the lifting plate 2, a plurality of push rods 1 are fixed on the lifting plate 1, a plurality of push rods 2 are fixed on the lifting plate 2, the push rods 1 and 2 penetrate and are slidably connected to the partition, and the plurality of push rods 1 and 2 alternately pass through the gaps between the plurality of rollers, a cantilever 2 is fixed on the outer wall of the heating box, and the cantilever 2 is rotationally connected to a driving wheel with a fixed axis, and the driving wheel is transmission-connected to a motor fixed on the heating box, the driving wheel is transmission-connected to each roller through a belt, and the driving wheel is transmission-connected to the reciprocating screw through an axle rod 1.

[0004] Preferably, a matching sliding sleeve is sleeved and slidably connected on the reciprocating screw rod, and the sliding sleeve is hinged to the lifting plate one and the lifting plate two through connecting rod one and connecting rod two respectively, and a plurality of the top rods one pass through and are slidably connected to the lifting plate two.

[0005] Preferably, a shaft rod 2 is rotatably connected to the inner wall of the heating box, and the shaft rod 2 is located below the partition and arranged parallel to the partition, a plurality of hammer heads are fixed on the peripheral wall of the shaft rod 2, and a shaft rod 3 is rotatably connected to the inner wall of the heating box, and the upper end of the shaft rod 3 is transmission connected to the shaft rod 2 through a bevel gear set 3, and the lower end of the shaft rod 3 is transmission connected to the reciprocating screw through a bevel gear set 4.

[0006] Preferably, a cantilever is fixed on the outer wall of the heating box, and a shaft rod is rotatably connected to the cantilever. The upper end of the shaft rod is transmission connected to the driving wheel through a bevel gear set 1, and the lower end of the shaft rod is transmission connected to one end of the reciprocating screw located on the outside of the heating box through a bevel gear set 2.

[0007] Preferably, an ash discharge port is provided on the side wall of the heating box, and the ash discharge port is located at the lower end of the partition, the ash discharge port is connected to the collecting box, the collecting box is detachably fixed on the outer wall of the heating box, and a guide plate is fixed at the lower end of the discharge port.

[0008] Preferably, the plurality of rollers are arranged at the same horizontal height, a plurality of grooves are provided on the peripheral wall of the roller, the plurality of grooves are arranged at equal intervals along the circumference of the roller, and the direction of the grooves is arranged parallel to the central axis of the roller.

[0009] Preferably, a pump barrel is fixed to the bottom surface of the heating box, a piston plate is slidably connected to the inside of the pump barrel, a push-pull rod is fixed to the upper surface of the piston plate, and the upper end of the push-pull rod is fixedly connected to the second lifting plate.

[0010] Preferably, slide cylinder 1 and slide cylinder 2 are fixed to the bottom of the feed pipe, and slide cylinder 2 is arranged close to the outlet position of the feed pipe.

[0011] Preferably, the interior of slide cylinder 1 is slidably connected to slide plate 1, and slide plate 1 is connected to the inner upper end of slide cylinder 1 through spring 1, the upper surface of slide plate 1 is vertically and fixedly connected to stop rod 1, the upper end of stop rod 1 penetrates and is slidably connected to the side wall of the feed pipe, and the bottom of the pump barrel is connected to the space inside slide cylinder 1 located on the lower side of slide plate through air pipe 1.

[0012] Preferably, the interior of slide cylinder 2 is slidably connected to slide plate 2, and slide plate 2 is connected to the inner lower end of slide cylinder 2 through spring 2, the upper surface of slide plate 2 is vertically and fixedly connected to stop rod 2, the upper end of stop rod 2 passes through and is slidably connected to the side wall of the feed pipe, and the space inside slide cylinder 1 located on the lower side of slide plate is connected to the space inside slide cylinder 2 located on the upper side of slide plate 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the lifting plate 1 and the lifting plate 2 are driven by a reciprocating screw to drive the push rod 1 and the push rod 2 thereon to move up and down alternately from the gap between the corresponding two rollers, so that the disconnection pins on the rollers are shifted to the right one by one. During the displacement of the disconnection pins, they are heated by the heating combination panel to be heated, and the heated disconnection pins are discharged through the discharge port, so as to achieve surface heat treatment of the disconnection pins. In addition, the synchronous and unidirectional rotation of each roller increases the friction force on the one hand, which facilitates the smooth displacement of the disconnection pin. On the other hand, when the groove edges on the rollers contact the surface of the disconnection pins, they can "gnaw" off the dirt and oxide scale on the surface of the disconnection pins, so as to clean the surface of the disconnection pins.

[0014] In the present invention, while the breaking pins are shifted one by one, the breaking pins in the feed port are transported to the heating box one by one through the stop rods 1 and 2 on the slide cylinders 1 and 2, and the reciprocating screw simultaneously drives the shaft rod 2 to drive the hammer head on its peripheral wall to knock the bottom surface of the partition, so that the partition vibrates to quickly discharge the dirt and oxide scale on the upper surface to the ash discharge port to avoid accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 1 ; Figure 2 for Figure 1 A is an enlarged structural diagram; Figure 3 The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 2 ; Figure 4 for Figure 3 The enlarged structural diagram at B in FIG. Figure 5 The schematic diagram of the cross-sectional structure of the general assembly of the present invention is shown in FIG. Figure 3 .

[0016] In the figure: 1. Heating box; 2. Heating combination panel; 3. Feeding pipe; 4. Bevel gear set 1; 5. Cantilever 1; 6. Collecting box; 7. Shaft rod 1; 8. Bevel gear set 2; 9. Push-pull rod; 10. Pump barrel; 11. Piston plate; 12. Air pipe 1; 13. Ash discharge port; 14. Partition plate; 15. Roller; 16. Discharge port; 17. Guide plate; 18. Push rod 1; 19. Hammer; 20. Shaft rod 2; 21. Lifting plate 2; 22. Push rod 2; 23. Bevel gear set three; 24. Shaft rod three; 25. Connecting rod two; 26. Reciprocating screw; 27. Lifting plate one; 28. Connecting rod one; 29. ​​Sliding sleeve; 30. Bevel gear set four; 31. Spring one; 32. Slide plate one; 33. Slide cylinder one; 34. Groove; 35. Driving wheel; 36. Cantilever two; 37. Belt; 38. Stop rod one; 39. Air pipe two; 40. Spring two; 41. Slide plate two; 42. Slide cylinder two; 43. Stop rod two. DETAILED DESCRIPTION

[0017] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 5 The present invention provides a technical solution: a surface treatment device for a breakaway pin of an aircraft component, comprising a heating box 1 with a feed pipe 3 and a discharge port 16, a heating combination panel 2 is fixed on the top wall of the interior of the heating box 1, the heating combination panel 2 is composed of a plurality of heating plates, and the heating temperatures of the plurality of heating plates gradually increase from left to right, an inclined partition 14 is fixed on the inner wall of the heating box 1, a plurality of parallel rollers 15 are arranged above the partition 14, and the rollers 15 are connected to the inner wall of the heating box 1 with a fixed axis, a lifting plate 1 27, a lifting plate 21 and a reciprocating screw 26 are arranged below the partition 14, and the reciprocating screw 26 and the lifting plate 1 27 and the lifting plate 21 are connected to the inner wall of the heating box 1 with a fixed axis, and the reciprocating screw 26 and the lifting plate 1 27 and the lifting plate 21 are connected to the inner wall of the heating box 1 with a fixed axis, and the reciprocating screw 26 and the lifting plate 1 27 and the lifting plate 1 ... The plate 21 is connected for transmission, a plurality of push rods 18 are fixed on the lifting plate 27, a plurality of push rods 22 are fixed on the lifting plate 21, the push rods 18 and the push rods 22 pass through and are slidably connected to the partition 14, and the plurality of push rods 18 and the plurality of push rods 22 alternately pass through the gaps between the plurality of rollers 15, a cantilever 2 36 is fixed on the outer wall of the heating box 1, and the cantilever 2 36 is connected to the driving wheel 35 for fixed axis rotation, and the driving wheel 35 is connected for transmission with the motor fixed on the heating box 1, the motor is not drawn in the present application, the driving wheel 35 is connected for transmission with each roller 15 through a belt 37, and the driving wheel 35 is connected for transmission with the reciprocating screw 26 through an axle 1 7.

[0019] In this embodiment, a matching sliding sleeve 29 is sleeved and slidably connected on the reciprocating screw rod 26, and the sliding sleeve 29 is hinged to the lifting plate 1 27 and the lifting plate 2 21 through the connecting rod 1 28 and the connecting rod 2 25 respectively, and the plurality of the top rods 1 18 pass through and are slidably connected to the lifting plate 2 21.

[0020] In this embodiment, a shaft rod 20 is rotatably connected to the inner wall of the heating box 1, and the shaft rod 20 is located below the partition 14 and is arranged parallel to the partition 14. A plurality of hammer heads 19 are fixed on the peripheral wall of the shaft rod 20. A shaft rod 3 24 is rotatably connected to the inner wall of the heating box 1, and the upper end of the shaft rod 3 24 is transmission-connected to the shaft rod 20 via a bevel gear set 3 23, and the lower end of the shaft rod 3 24 is transmission-connected to the reciprocating screw 26 via a bevel gear set 4 30.

[0021] In this embodiment, a cantilever 5 is fixed on the outer wall of the heating box 1, and a shaft rod 7 is rotatably connected to the cantilever 5. The upper end of the shaft rod 7 is transmission connected to the driving wheel 35 through a bevel gear set 4, and the lower end of the shaft rod 7 is transmission connected to one end of the reciprocating screw 26 located on the outer side of the heating box 1 through a bevel gear set 2 8.

[0022] In this embodiment, an ash discharge port 13 is opened on the side wall of the heating box 1, and the ash discharge port 13 is located at the lower end of the partition 14. The ash discharge port 13 is connected to the collecting box 6. The collecting box 6 is detachably fixed to the outer wall of the heating box 1, such as threaded connection, snap connection, etc., so that it is convenient to clean the dirt and oxide scale inside the collecting box 6. A guide plate 17 is fixed to the lower end of the discharge port 16.

[0023] In this embodiment, the plurality of rollers 15 are arranged at the same horizontal height, and a plurality of grooves 34 are provided on the peripheral wall of the roller 15 . The plurality of grooves 34 are arranged at equal intervals along the circumference of the roller 15 , and the grooves 34 are arranged parallel to the central axis of the roller 15 .

[0024] In this embodiment, a pump barrel 10 is fixed to the bottom surface of the interior of the heating box 1, and a piston plate 11 is slidably connected to the interior of the pump barrel 10. A push-pull rod 9 is fixed to the upper surface of the piston plate 11, and the upper end of the push-pull rod 9 is fixedly connected to the lifting plate 21. A slide 33 and a slide 42 are fixed to the bottom of the feed pipe 3, and the slide 42 is arranged near the outlet position of the feed pipe 3. The interior of the slide 33 is slidably connected to the slide plate 32, and the slide plate 32 is connected to the inner upper end of the slide 33 through a spring 31. The upper surface of the slide plate 32 is vertically and fixedly connected to a stop rod 38, and the upper end of the stop rod 38 passes through and is slidably connected to the feed pipe 3. On the side wall of the feed pipe 3, the bottom of the pump barrel 10 is connected to the space inside the slide cylinder 33 at the lower side of the slide plate 32 through the air pipe 12, the interior of the slide cylinder 42 is slidably connected to the slide plate 41, and the slide plate 41 is connected to the inner lower end of the slide cylinder 42 through the spring 40, the spring 40 has a stiffness greater than that of the spring 31, the upper surface of the slide plate 41 is vertically and fixedly connected to the stop rod 43, the upper end of the stop rod 43 passes through and is slidably connected to the side wall of the feed pipe 3, the space inside the slide cylinder 33 at the lower side of the slide plate 32 is connected to the space inside the slide cylinder 42 at the upper side of the slide plate 41.

[0025] Working principle and advantages of the present invention: When the surface treatment device for the aircraft component breakaway pin is used, the working process is as follows: like Figure 1 , Figure 3 and Figure 5As shown, the disconnecting pins pass through the feed pipe 3 one by one and enter the roller 15 inside the heating box 1, and the motor and the heating combination panel 2 are started to work. The motor drives the driving wheel 35 to rotate, and the driving wheel 35 drives the shaft rod 7 to rotate through the bevel gear set 1 4, so that the shaft rod 1 7 drives the reciprocating screw 26 to rotate through the bevel gear set 2 8, and then the sleeve 29 reciprocates left and right on the reciprocating screw 26, so that the sleeve 29 drives the lifting plate 1 27 and the lifting plate 21 to alternately move away from and approach each other through the connecting rod 1 28 and the connecting rod 25, so that the lifting plate 1 27 and the lifting plate 21 drive the top rod 18 and the top rod 22 thereon to alternately move up and down from the gap between the corresponding two rollers 15, so that the disconnecting pins on the roller 15 are shifted to the right one by one, and in the process of the displacement of the disconnecting pins, they are heated by the heating combination panel 2 to be heated, and the heated disconnecting pins are discharged through the discharge port 16.

[0026] As described above, the driving wheel 35 rotates while driving the rollers 15 to rotate synchronously in the same direction through the belt 37. Figure 4 As shown, that is, each roller 15 rotates counterclockwise, so that the disconnecting pin rotates clockwise, and when the edges of the grooves 34 on the rollers 15 contact the surface of the disconnecting pin, on the one hand, the friction force is increased to facilitate the smooth displacement of the disconnecting pin, and on the other hand, the dirt and oxide scale on the surface of the disconnecting pin can be "gnawed" off, thereby cleaning the surface of the disconnecting pin. The cleaned dirt and oxide scale fall on the partition 14, and roll along the inclined surface of the partition 14 to the ash discharge port 13 and enter the collection box 6. In addition, the reciprocating screw 26 rotates while driving the shaft rod 3 24 to rotate through the bevel gear set 4 30, so that the shaft rod 3 24 drives the shaft rod 20 to rotate through the bevel gear set 3 23, and then the shaft rod 20 drives the hammer head 19 on its peripheral wall to knock on the bottom surface of the partition 14, so that the partition 14 vibrates to quickly discharge the dirt and oxide scale on the upper surface to the ash discharge port 13 to avoid accumulation.

[0027] As mentioned above, while the lifting plate 21 reciprocates up and down, the lifting plate 21 drives the piston plate 11 to move up and down in the pump barrel 10 through the push-pull rod 9. When the piston plate 11 moves down, the leftmost push rod 18 moves up. Figure 2As shown, the piston plate 11 pressurizes the air in the pump barrel 10 and transports it to the inside of the slide barrel 33 through the air pipe 12. At this time, the pressure on the lower side of the slide plate 32 increases, causing the slide plate 32 to compress the spring 31 and drive the stop rod 38 to move upward. Since the stiffness coefficient of the spring 40 is greater than the stiffness coefficient of the spring 31, the compression amount of the spring 40 by the slide plate 41 is small, and the stop rod 43 is driven to move downward at a slow speed. When the piston plate 11 is at the lowest position, the stop rod 38 blocks the disconnection pin at the second position from the outlet in the feed pipe 3, and the slide plate 41 drives the stop rod 43 to move down to the lowest point, so that the disconnection pin at the first position from the outlet in the feed pipe 3 rolls down to the roller 15. When the piston plate 11 moves upward, the leftmost push rod 18 moves down. The piston plate 11 moves upward and applies suction force to the pump barrel 10, and the suction force draws out the air inside the slide barrel 33 through the air pipe 12. Since the stiffness coefficient of the spring 40 is greater than the stiffness coefficient of the spring 31, the spring 40 stretches and resets first, so that the slide plate 41 drives the stop rod 43 to move upward and reset, and then the spring 31 stretches and resets and drives the stop rod 38 to move downward. At this time, the stop rod 38 does not block the breakaway pin at the second position of the outlet in the feed pipe 3, so that the breakaway pin rolls to the first position and is blocked by the stop rod 43 and no longer moves downward, so that the breakaway pins in the feed pipe 3 are transported to the heating box 1 one by one to achieve heat treatment of the breakaway pins.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A surface treatment device for a breakaway pin of an aircraft component, comprising a heating box (1) with a feed pipe (3) and a discharge port (16), characterized in that: A heating combination panel (2) is fixed on the top wall of the heating box (1), an inclined partition (14) is fixed on the inner wall of the heating box (1), a plurality of parallel rollers (15) are arranged above the partition (14), and the rollers (15) are rotatably connected to the inner wall of the heating box (1), a lifting plate 1 (27), a lifting plate 2 (21) and a reciprocating screw (26) are arranged below the partition (14), and the reciprocating screw (26) is transmission-connected to the lifting plate 1 (27) and the lifting plate 2 (21), a plurality of top rods 1 (18) are fixed on the lifting plate 1 (27), and a plurality of top rods 1 (18) are fixed on the lifting plate 2 (21). A plurality of push rods (22) are provided, wherein the push rods (18) and the push rods (22) penetrate through and are slidably connected to the partition (14), and the plurality of push rods (18) and the plurality of push rods (22) alternately pass through the gaps between the plurality of rollers (15). A cantilever (36) is fixed on the outer wall of the heating box (1), and the cantilever (36) is rotatably connected to a driving wheel (35), and the driving wheel (35) is drivingly connected to a motor fixed to the heating box (1), and the driving wheel (35) is drivingly connected to each roller (15) via a belt (37), and the driving wheel (35) is drivingly connected to a reciprocating screw (26) via a shaft (7).

2. The surface treatment device for a breakaway pin of an aircraft component according to claim 1, characterized in that: A matching sliding sleeve (29) is sleeved on and slidably connected to the reciprocating screw rod (26); the sliding sleeve (29) is hinged to the lifting plate 1 (27) and the lifting plate 2 (21) respectively through the connecting rod 1 (28) and the connecting rod 2 (25); and a plurality of the top rods 1 (18) pass through and are slidably connected to the lifting plate 2 (21).

3. The surface treatment device for the aircraft component breakaway pin according to claim 2, characterized in that: A second shaft (20) is rotatably connected to the inner wall of the heating box (1), and the second shaft (20) is located below the partition (14) and is arranged parallel to the partition (14). A plurality of hammer heads (19) are fixed on the peripheral wall of the second shaft (20). A third shaft (24) is rotatably connected to the inner wall of the heating box (1), and the upper end of the third shaft (24) is transmission-connected to the second shaft (20) via a bevel gear set (23), and the lower end of the third shaft (24) is transmission-connected to the reciprocating screw (26) via a bevel gear set (30).

4. The surface treatment device for a breakaway pin of an aircraft component according to claim 1, characterized in that: A cantilever arm (5) is fixed on the outer wall of the heating box (1), and a shaft rod (7) is rotatably connected to the cantilever arm (5). The upper end of the shaft rod (7) is transmission-connected to the driving wheel (35) via a bevel gear set (4), and the lower end of the shaft rod (7) is transmission-connected to one end of a reciprocating screw (26) located outside the heating box (1) via a bevel gear set (8).

5. The surface treatment device for aircraft component breakaway pins according to claim 1, characterized in that: An ash discharge port (13) is provided on the side wall of the heating box (1), and the ash discharge port (13) is located at the lower end of the partition (14). The ash discharge port (13) is connected to the collection box (6), and the collection box (6) is detachably fixed to the outer wall of the heating box (1). A guide plate (17) is fixed at the lower end of the discharge port (16).

6. The surface treatment device for aircraft component breakaway pins according to claim 1, characterized in that: The plurality of rollers (15) are arranged at the same horizontal height, and a plurality of grooves (34) are provided on the peripheral wall of the roller (15). The plurality of grooves (34) are arranged at equal intervals along the circumference of the roller (15), and the direction of the grooves (34) is arranged parallel to the central axis of the roller (15).

7. The surface treatment device for aircraft component breakaway pins according to claim 1, characterized in that: A pump barrel (10) is fixed to the bottom surface of the heating box (1), a piston plate (11) is slidably connected to the inside of the pump barrel (10), a push-pull rod (9) is fixed to the upper surface of the piston plate (11), and the upper end of the push-pull rod (9) is fixedly connected to the second lifting plate (21).

8. The surface treatment device for a breakaway pin of an aircraft component according to claim 7, characterized in that: A slide cylinder 1 (33) and a slide cylinder 2 (42) are fixed to the bottom of the feed pipe (3), and the slide cylinder 2 (42) is arranged close to the outlet position of the feed pipe (3).

9. The surface treatment device for aircraft component breakaway pins according to claim 8, characterized in that: The interior of the slide cylinder (33) is slidably connected to the slide plate (32), and the slide plate (32) is connected to the internal upper end of the slide cylinder (33) through a spring (31). The upper surface of the slide plate (32) is vertically and fixedly connected to a stop rod (38). The upper end of the stop rod (38) penetrates and is slidably connected to the side wall of the feed pipe (3). The bottom of the pump barrel (10) is connected to the space inside the slide cylinder (33) located on the lower side of the slide plate (32) through an air pipe (12).

10. The surface treatment device for aircraft component breakaway pins according to claim 9, characterized in that: The interior of the slide cylinder 2 (42) is slidably connected to the slide plate 2 (41), and the slide plate 2 (41) is connected to the lower end of the interior of the slide cylinder 2 (42) through the spring 2 (40). The upper surface of the slide plate 2 (41) is vertically and fixedly connected to the stop rod 2 (43). The upper end of the stop rod 2 (43) passes through and is slidably connected to the side wall of the feed pipe (3). The space inside the slide cylinder 1 (33) located at the lower side of the slide plate 1 (32) is connected to the space inside the slide cylinder 2 (42) located at the upper side of the slide plate 2 (41).

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