Positioning tool for painting aircraft

Abstract

The utility model discloses a positioning tool for aircraft coating, including the upper horizontal support plate of fixed ground, the bottom surface fixed with a plurality of support blocks of upper horizontal support plate, and support block is fixed on the ground below, the top surface of upper horizontal support plate is placed with the trolley frame, and the middle top surface of trolley frame is fixed with vertical rack, and vertical rack is installed with the shell body, and the top of shell body is fixed with upper connecting support block, and the top surface of upper connecting support block is fixed with upper placing frame, and the top surface of the top board of upper placing frame is fixed with servo motor, and the end of the output shaft of servo motor stretches out one side of upper placing frame, it can move, and can carry out detachable positioning and fix when moving to the specified position, and its installation and removal are convenient, and it is convenient to move and use, and after its removal, also do not affect other placement or operation, and it is very convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of aircraft painting equipment, and more specifically to a positioning fixture for aircraft painting. Background Technology

[0002] Existing small civilian aircraft require surface painting after the fuselage shell is installed. During the painting process, the aircraft fuselage needs to be flipped over.

[0003] The existing method involves directly connecting and fixing support frames to the ground at the front and rear of the aircraft fuselage using expansion bolts or welding. Clamping mechanisms are installed on the support frames to secure the aircraft fuselage. Then, the aircraft is rotated by the clamping mechanisms to facilitate painting. However, the support frames are connected by expansion bolts or welding. When welding, the weld joint needs to be cut open with a cutting machine to disassemble, which is very troublesome. While expansion bolts can be removed, the tops of the expansion bolts are still exposed when not in use, which can easily affect the placement or operation of other items. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a positioning fixture for aircraft painting. It can be moved and can be detached and fixed in a designated position. It is easy to install and disassemble, convenient to move and use, and its disassembly does not affect other placement or operation, which is very convenient.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] A positioning fixture for aircraft painting includes an upper horizontal support plate fixed on the ground. Multiple support blocks are fixed on the bottom surface of the upper horizontal support plate and the support blocks are fixed on the ground below. A trolley frame is placed on the top surface of the upper horizontal support plate. A vertical rack is fixed on the top surface of the middle part of the trolley frame. An outer shell is installed on the vertical rack. An upper connecting support block is fixed on the top of the outer shell. An upper placement frame is fixed on the top surface of the upper connecting support block. A servo motor is fixed on the top surface of the top plate of the upper placement frame. The end of the output shaft of the servo motor extends out of one side of the upper placement frame.

[0007] A vertical lifting tube is fixed on the left side wall of the left side plate of the upper placement frame, and a main vertical rod is installed on the left side of the vertical lifting tube. The bottom end of the main vertical rod is fixed to the top surface of the trolley frame.

[0008] A vertical support column is fixed to the rear of the bottom surface of the top plate of the upper placement frame. The bottom end of the vertical support column is movably connected to a counter-tension gas spring through a universal joint coupling. The bottom of the pull rod of the counter-tension gas spring is connected to a threaded sleeve through a universal joint coupling. A through groove is formed on the corresponding upper horizontal support plate. A connecting seat is fixed on the ground directly below the through groove. A corresponding threaded post is fixed in the middle of the top surface of the connecting seat. The threaded sleeve corresponds to the threaded post.

[0009] The trolley frame is welded and fixed together with multiple transverse beams and side beams. Push wheels are installed on the front and rear parts of the bottom surface of the left and right side beams. Transverse beams extending to the left and right are fixed between the rear and middle parts of the two side beams. A rear middle beam is welded and fixed between the rear wall of the middle transverse beam and the front wall of the rear transverse beam.

[0010] Two side beams are welded and fixed to the bottom surface of their middle sections with relatively extended transverse blocks. A vertical through hole is formed in the middle of the transverse block. A positioning sleeve is inserted into the vertical through hole. An upper pressure plate is fixed to the top of the positioning sleeve. The bottom surface of the upper pressure plate presses against the top surface of the transverse block. The bottom of the positioning sleeve extends out of the bottom surface of the transverse block and is inserted into the corresponding auxiliary positioning slot on the upper horizontal support plate. A vertical positioning rod is fixed to the ground directly below the auxiliary positioning slot. The vertical positioning rod is inserted into the upwardly extending insertion hole formed in the middle of the bottom surface of the corresponding positioning sleeve.

[0011] Guide sleeves are fixed in the middle and lower parts of the vertical lifting tube. The right end of the guide sleeve is welded and fixed to the inner wall of the right side plate of the vertical lifting tube. The left end of the guide sleeve is inserted into the corresponding side through hole on the left side plate of the vertical lifting tube. The outer wall of the left end of the guide sleeve is welded and fixed to the inner wall of the corresponding side through hole. The right end of the guide sleeve faces the insertion through hole formed on the right side plate of the vertical lifting tube. A positioning through hole is formed in the middle of the right side plate of the main vertical rod. The positioning rod is inserted into the corresponding insertion through hole, guide sleeve and positioning through hole. A gripping part is fixed at the right end of the positioning rod. The left end face of the gripping part presses against the right side wall of the vertical lifting tube.

[0012] The interior of the outer casing is provided with a first transmission gear, a second transmission gear, and a main drive gear. The two ends of the rotating shaft fixed in the middle of the first transmission gear, the second transmission gear, and the main drive gear are movably connected to the left and right side plates of the outer casing through bearings. The first transmission gear is located at the bottom, the second transmission gear is located in the middle, and the main drive gear is located at the top. The first transmission gear meshes with the second transmission gear, and the second transmission gear meshes with the main drive gear. The first transmission gear is also connected to a vertical rack, which is inserted into the outer casing and its top extends out of the top of the outer casing.

[0013] The right end of the shaft of the main drive gear extends out of the right side wall of the outer casing and is fixed with a rotating shaft. A rotating handle is fixed to the right end of the rotating shaft.

[0014] The outstanding effect of this utility model is:

[0015] It is movable and can be detached and fixed in a designated location. It is easy to install and disassemble, and convenient to move and use. Moreover, after disassembly, it does not affect other placement or operation, which is very convenient. Attached Figure Description

[0016] Figure 1 This is a partial structural diagram of two trolley frames and their components mounted on the upper horizontal support plate.

[0017] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0018] Figure 3 yes Figure 1 A magnified view of another part;

[0019] Figure 4 This is a partial sectional view of the present invention;

[0020] Figure 5 This is a partial top view of the cart frame. Detailed Implementation

[0021] For example, see below. Figures 1 to 5 As shown, a positioning fixture for aircraft painting includes an upper horizontal support plate 10 fixed on the ground. Multiple support blocks are fixed on the bottom surface of the upper horizontal support plate 10, and the support blocks are fixed on the ground below. The upper horizontal support plate 10 is made of a perforated plate, so that excess water or paint can flow down through the holes when spraying. Two trolley frames 20 are placed on the top surface of the upper horizontal support plate 10, and the fuselage shell of the aircraft can be installed between the two trolley frames 20. A vertical rack 21 is fixed on the top surface of the middle part of the trolley frame 20, and an outer shell 30 is installed on the vertical rack 21. An upper connecting support block 31 is fixed on the top of the outer shell 30, and an upper placement frame 40 is fixed on the top surface of the upper connecting support block 31. A servo motor 41 is fixed on the top surface of the top plate of the upper placement frame 40, and the end of the output shaft of the servo motor 41 extends out of one side of the upper placement frame 40.

[0022] A vertical lifting pipe 42 is fixed on the left side wall of the left side plate of the upper placement frame 40. A main vertical rod 43 is installed on the left side of the vertical lifting pipe 42. The bottom end of the main vertical rod 43 is fixed on the top surface of the trolley frame 20.

[0023] A vertical support column 44 is fixed to the rear of the bottom surface of the top plate of the upper placement frame 40. The bottom end of the vertical support column 44 is movably connected to a counter-tension gas spring 50 through a universal joint coupling. The bottom of the pull rod of the counter-tension gas spring 50 is connected to a threaded sleeve 51 through a universal joint coupling. A through groove 11 is formed on the corresponding upper horizontal support plate 10. A connecting seat is fixed on the ground directly below the through groove 11. A threaded post 12 is fixed in the middle of the top surface of the connecting seat. The threaded sleeve 51 corresponds to the threaded post 12.

[0024] Furthermore, the trolley frame 20 is welded and fixed by multiple transverse beams and side beams. Push wheels 22 are installed on the front and rear parts of the bottom surface of the left and right side beams. Transverse beams extending to the left and right are fixed at the rear and middle parts between the two side beams. A rear middle beam is welded and fixed between the rear wall of the middle transverse beam and the front wall of the rear transverse beam.

[0025] Two side beams are welded and fixed to the bottom surface of the middle section of the two side beams. A vertical through hole is formed in the middle of the horizontal block 23. The positioning sleeve 24 is inserted into the vertical through hole. An upper pressure plate 25 is fixed to the top of the positioning sleeve 24. The bottom surface of the upper pressure plate 25 presses against the top surface of the horizontal block 23. The bottom of the positioning sleeve 24 extends out of the bottom surface of the horizontal block 23 and is inserted into the corresponding auxiliary positioning through groove 13 on the upper horizontal support plate 10. A vertical positioning rod 14 is fixed on the ground directly below the auxiliary positioning through groove 13. The vertical positioning rod 14 is inserted into the upwardly extending insertion hole formed in the middle of the bottom surface of the corresponding positioning sleeve 24.

[0026] Furthermore, the bottom of the vertical rack 21 is fixed to the top surface of the middle of the transverse beam and the top surface of the front of the rear intermediate beam, and the bottom end of the main vertical rod 43 is fixed to the top surface of the transverse beam in the middle of the trolley frame 20.

[0027] Guide sleeves 421 are fixed in the middle and lower parts of the vertical lifting tube 42. The right end of the guide sleeve 421 is welded and fixed to the inner wall of the right side plate of the vertical lifting tube 42. The left end of the guide sleeve 421 is inserted into the corresponding side through hole on the left side plate of the vertical lifting tube 42. The outer wall of the left end of the guide sleeve 421 is welded and fixed to the inner wall of the corresponding side through hole. The right end of the guide sleeve 421 faces the insertion through hole formed on the right side plate of the vertical lifting tube 42. The middle part of the right side plate of the main vertical rod 43 has a positioning through hole 431. The positioning rod 440 is inserted into the corresponding insertion through hole, guide sleeve 421 and positioning through hole 431. A gripping part is fixed at the right end of the positioning rod 440. The left end face of the gripping part presses against the right side wall of the vertical lifting tube 42. In this embodiment, the guide sleeve 421 is a magnetic sleeve. When in use, the positioning rod 440 is inserted into the guide sleeve 421, which has an adsorption and fixing effect, making it difficult for it to fall off. At the same time, the magnetism of the guide sleeve 421 is limited, so it will not cause the vertical lifting tube 42 and the main vertical rod 43 to be adsorbed and fixed.

[0028] Furthermore, a guide block 45 is fixed on the left side wall of the vertical lifting tube 42, and a limiting part 46 is fixed on the left end face of the guide block 45. The guide block 45 is inserted into the vertical through groove formed on the right side plate of the main vertical rod 43. The limiting part 46 is located on the left side of the right side plate of the vertical lifting tube 42. The distance between the front and rear side walls of the limiting part 46 is greater than the distance between the front and rear inner side walls of the vertical through groove.

[0029] The interior of the outer casing 30 is provided with a first transmission gear 310, a second transmission gear 32, and a main drive gear 33. The two ends of the rotating shaft fixed in the middle of the first transmission gear 310, the second transmission gear 32, and the main drive gear 33 are movably connected to the left and right side plates of the outer casing 30 through bearings. The first transmission gear 310 is located at the bottom, the second transmission gear 32 is located in the middle, and the main drive gear 33 is located at the top. The first transmission gear 310 meshes with the second transmission gear 32, the second transmission gear 32 meshes with the main drive gear 33, and the first transmission gear 310 meshes with the vertical rack 21. The vertical rack 21 is inserted into the outer casing 30, and its top extends out of the top of the outer casing 30.

[0030] The right end of the shaft of the main drive gear 33 extends out of the right side wall of the outer casing 30 and is fixed with a rotating shaft. A rotating handle is fixed to the right end of the rotating shaft.

[0031] A rubber limiting sleeve 34 is fixed to the outer wall of the rotating shaft. Multiple protruding limiting portions 35 are formed on the outer wall of the rubber limiting sleeve 34, all evenly distributed around the central axis of the rubber limiting sleeve 34. A limiting post 36 is fixed to the upper part of the right side wall of the outer shell 30, with the lower part of the limiting post 36 positioned in a limiting groove between two corresponding protruding limiting portions 35. This design prevents the outer shell 30 from descending during height adjustment. The protruding limiting portions 35 provide a certain degree of obstruction; that is, when the rotating shaft is not rotating, the lower part of the limiting post 36, positioned in the limiting groove between two corresponding protruding limiting portions 35, prevents it from rotating. When manually rotating, only slight force is needed; the elastic deformation of the protruding limiting portions 35 allows the limiting post 36 to move out of the limiting groove, thus enabling the rotating shaft to rotate and achieving height adjustment.

[0032] In this embodiment, the trolley frame 20 can be moved to the corresponding position of the upper horizontal support plate 10. After the positioning rod 440 is pulled out, the rotating handle is turned so that the outer shell 30 can be adjusted in height along the vertical rack 21. This embodiment can only adjust two positions. During adjustment, the positioning rod 440 can be inserted into the corresponding insertion through hole, guide sleeve 421 and positioning through hole 431 through the corresponding guide sleeve 421 and positioning through hole 431 to lock it and realize the height adjustment.

[0033] Then, the fuselage of the aircraft to be painted can be fixed between the clamping frames fixed at the ends of the output shafts of the two servo motors 41 (the clamping frames are conventional frame frames fixed by welding with connecting rods, the frame frames are pressed against the ends of the fuselage and fixed with bolts, which is a conventional structure and will not be described in detail here). Then, the two trolley frames 20 are moved to the corresponding positions, the pull rod of the counter-tension gas spring 50 is pulled outward, and then the screw sleeve 51 is screwed onto the screw post 12 to achieve fixation. At the same time, the positioning sleeve 24 is inserted into the vertical through hole, the bottom surface of the upper pressing plate 25 is pressed against the top surface of the horizontal block 23, the bottom of the positioning sleeve 24 extends out of the bottom surface of the horizontal block 23 and is inserted into the corresponding auxiliary positioning through groove 13 on the upper horizontal support plate 10, and the vertical positioning rod 14 is inserted into the upwardly extending insertion hole formed in the middle of the bottom surface of the corresponding positioning sleeve 24 to achieve locking.

[0034] Then, by operating the two servo motors 41 synchronously, the casing can be flipped to facilitate painting. At the same time, a protective cover is fixed to the outside of the main body of the servo motor 41 to prevent paint from being sprayed onto the casing of the servo motor 41 and affecting its heat dissipation.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A positioning fixture for aircraft painting, comprising an upper horizontal support plate (10) fixed on the ground, wherein a plurality of support blocks are fixed on the bottom surface of the upper horizontal support plate (10), and the support blocks are fixed on the ground below, characterized in that: A trolley frame (20) is placed on the top surface of the upper horizontal support plate (10). A vertical rack (21) is fixed on the top surface of the middle part of the trolley frame (20). An outer shell (30) is installed on the vertical rack (21). An upper connecting support block (31) is fixed on the top of the outer shell (30). An upper placement frame (40) is fixed on the top surface of the upper connecting support block (31). A servo motor (41) is fixed on the top surface of the top plate of the upper placement frame (40). The end of the output shaft of the servo motor (41) extends out of one side of the upper placement frame (40). A vertical lifting pipe (42) is fixed on the left side wall of the left side plate of the upper placement frame (40), and a main vertical rod (43) is installed on the left side of the vertical lifting pipe (42). The bottom end of the main vertical rod (43) is fixed on the top surface of the trolley frame (20). A vertical support column (44) is fixed to the rear of the bottom surface of the top plate of the upper placement frame (40). The bottom end of the vertical support column (44) is movably connected to a counter-tension gas spring (50) through a universal joint coupling. The bottom of the pull rod of the counter-tension gas spring (50) is connected to a threaded sleeve (51) through a universal joint coupling. A through groove (11) is formed on the corresponding upper horizontal support plate (10). A connecting seat is fixed on the ground directly below the through groove (11). A threaded column (12) is fixed in the middle of the top surface of the connecting seat. The threaded sleeve (51) corresponds to the threaded column (12).

2. The positioning fixture for aircraft painting according to claim 1, characterized in that: The trolley frame (20) is welded and fixed by multiple transverse beams and side beams. Push wheels (22) are installed on the front and rear parts of the bottom surface of the left and right side beams. Transverse beams extending to the left and right are fixed on the rear and middle parts between the two side beams. A rear middle beam is welded and fixed between the rear wall of the middle transverse beam and the front wall of the rear transverse beam.

3. The positioning fixture for aircraft painting according to claim 2, characterized in that: Two side beams are welded and fixed to the bottom of the middle part of the horizontal block (23), and a vertical through hole is formed in the middle of the horizontal block (23). The positioning sleeve (24) is inserted into the vertical through hole. The top of the positioning sleeve (24) is fixed with an upper pressure plate (25). The bottom of the upper pressure plate (25) presses against the top surface of the horizontal block (23). The bottom of the positioning sleeve (24) extends out of the bottom surface of the horizontal block (23) and is inserted into the corresponding auxiliary positioning through groove (13) on the upper horizontal support plate (10). A vertical positioning rod (14) is fixed on the ground directly below the auxiliary positioning through groove (13). The vertical positioning rod (14) is inserted into the upwardly extending insertion hole formed in the middle of the bottom surface of the corresponding positioning sleeve (24).

4. The positioning fixture for aircraft painting according to claim 2, characterized in that: The bottom of the vertical rack (21) is fixed to the top surface of the middle of the transverse beam and the top surface of the front of the rear intermediate beam, and the bottom end of the main vertical rod (43) is fixed to the top surface of the transverse beam in the middle of the trolley frame (20).

5. A positioning fixture for aircraft painting according to claim 1, characterized in that: Guide sleeves (421) are fixed in the middle and lower parts of the vertical lifting tube (42). The right end of the guide sleeve (421) is welded and fixed to the inner wall of the right side plate of the vertical lifting tube (42). The left end of the guide sleeve (421) is inserted into the corresponding side through hole on the left side plate of the vertical lifting tube (42). The outer wall of the left end of the guide sleeve (421) is welded and fixed to the inner wall of the corresponding side through hole. The right end of the guide sleeve (421) faces the insertion through hole formed on the right side plate of the vertical lifting tube (42). The middle part of the right side plate of the main vertical rod (43) has a positioning through hole (431). The positioning rod (440) is inserted into the corresponding insertion through hole, guide sleeve (421) and positioning through hole (431). A gripping part is fixed at the right end of the positioning rod (440). The left end face of the gripping part presses against the right side wall of the vertical lifting tube (42).

6. The positioning fixture for aircraft painting according to claim 5, characterized in that: A guide block (45) is fixed on the left side wall of the vertical lifting tube (42). A limiting part (46) is fixed on the left end face of the guide block (45). The guide block (45) is inserted into the vertical through groove formed on the right side plate of the main vertical rod (43). The limiting part (46) is located on the left side of the right side plate of the vertical lifting tube (42). The distance between the front and rear side walls of the limiting part (46) is greater than the distance between the front and rear inner side walls of the vertical through groove.

7. A positioning fixture for aircraft painting according to claim 1, characterized in that: The interior of the outer shell (30) is provided with a first transmission gear (310), a second transmission gear (32) and a main drive gear (33). The two ends of the rotating shaft fixed in the middle of the first transmission gear (310), the second transmission gear (32) and the main drive gear (33) are movably connected to the left and right side plates of the outer shell (30) through bearings. The first transmission gear (310) is located at the bottom, the second transmission gear (32) is located in the middle, and the main drive gear (33) is located at the top. The first transmission gear (310) meshes with the second transmission gear (32), and the second transmission gear (32) meshes with the main drive gear (33). The first transmission gear (310) is connected to a vertical rack (21), which is inserted into the outer shell (30) and its top extends out of the top of the outer shell (30). The right end of the shaft of the main drive gear (33) extends out of the right side wall of the outer casing (30) and is fixed with a rotating shaft. A rotating handle is fixed to the right end of the rotating shaft. A rubber limiting sleeve (34) is fixed on the outer side wall of the rotating shaft. Multiple protruding limiting parts (35) are formed on the outer side wall of the rubber limiting sleeve (34). All the protruding limiting parts (35) are evenly distributed on the outer side wall of the rubber limiting sleeve (34) with the central axis of the rubber limiting sleeve (34) as the center. A limiting post (36) is fixed on the upper part of the right side wall of the outer shell (30). The lower part of the limiting post (36) is located in the limiting groove between the corresponding two protruding limiting parts (35).

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