Compressing and positioning device for spaceflight part assembly

Abstract

The utility model discloses a pressing and positioning device for assembling spaceflight parts. The pressing and positioning device comprises a shell, an outer ring is fixedly installed on the outer side of the top end of the shell, an annular sliding rail is fixedly installed at the top of the outer ring, two sliding seats are slidably connected to the outer side of the annular sliding rail in a sleeved mode, and a plurality of balls are installed on the inner sides of the two sliding seats in a rolling mode. By means of the lantern ring type design of the annular hollow frames, when parts of different sizes are placed on the tops of the annular hollow frames, adsorption force is applied to the bottoms of the parts through the annular hollow frames and the silica gel soft suction heads, and the parts of different sizes can be fixed conveniently; and the heights of different annular hollow frames can be controlled through stretching and retracting of a second electric control hydraulic telescopic column, the heights of the annular hollow frames can be conveniently changed at the annular parts and the positions where adsorption does not need to be carried out, and an air suction hose and a first electromagnetic valve are additionally arranged for controlling air suction flow.

Description

Technical Field

[0001] The utility model relates to the technical field of component assembly, pressing and positioning, and in particular to a pressing and positioning device for assembling aerospace components. Background Art

[0002] During the assembly of aerospace components, clamping and positioning play a crucial role, ensuring assembly precision and position accuracy. Clamping securely holds components in their designed positions, preventing them from shifting during assembly due to external forces or gravity. This is particularly important for aerospace components, as even the slightest positional deviation can impact the performance and safety of the entire spacecraft. Dimensional accuracy control, through clamping and positioning, effectively controls assembly clearances and dimensional accuracy between components. Aerospace components typically require extremely high dimensional accuracy to ensure overall spacecraft performance and reliability and enhance the reliability of mechanical connections. For aerospace components using mechanical fastening methods such as bolts and rivets, clamping and positioning increases contact pressure at the joint, improving friction and shear resistance, thereby enhancing joint reliability and ensuring weld quality. During the welded assembly of aerospace components, clamping and positioning ensures a tight fit, ensuring uniform heat transfer during welding and reducing weld defects.

[0003] During the assembly process of some aerospace parts, positioning and pressing are required to assist in installation. However, the existing positioning assembly mechanism cannot press parts of different diameters. In addition, during the pressing process of some positioning and pressing mechanisms, if the parts are not preliminarily fixed, the parts may be subjected to the misaligned extrusion force during operation, resulting in positioning misalignment, thereby reducing the accuracy. Based on this, a pressing and positioning device for the assembly of aerospace parts is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a pressing and positioning device for assembling aerospace parts, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressing and positioning device for assembling aerospace parts, comprising a shell, an outer ring is fixedly installed on the outer side of the top of the shell, an annular slide rail is fixedly installed on the top of the outer ring, the outer side of the annular slide rail is slidably sleeved on two sliding seats, a plurality of balls are rotatably installed on the inner sides of the two sliding seats, an electro-hydraulic telescopic column 1 is fixedly installed on the top of the two sliding seats, an output end of the electro-hydraulic telescopic column 1 is fixedly installed on the mounting frame, a high-precision screw rod is movably installed on the interior of the mounting frame through a bearing, the outer side of the high-precision screw rod is threadedly connected to a moving seat, the inner side of the other side of the moving seat is movably sleeved on a sliding rod, one end of the high-precision screw rod is transmission-connected to a servo motor, an air pump 1 is fixedly installed on the top of the moving seat, the output end of the air pump 1 is connected to two air hoses, and the two air hoses The other end of the tube is connected to a high-precision solenoid valve 2, and an annular tube is fixedly installed inside the two sliding seats, one side of the annular tube is connected to a nozzle, and an electrically controlled clamping mechanism is fixedly installed on the bottom of the movable seat, and a top plate is fixedly installed on the top of the shell, and a number of annular hollow frames are movably penetrated and sleeved on the inner side of the top plate, and a number of electrically controlled hydraulic telescopic columns 2 are fixedly installed on the bottom of the annular hollow frame, and the bottom end of the electrically controlled hydraulic telescopic columns 2 is fixedly installed on the inside of the shell, and a hollow bracket is fixedly installed on the inside of the annular hollow frame, and the bottom of the annular hollow frame is connected to an air suction hose, and the inside of the air suction hose is connected to a solenoid valve 1, and the end of the air suction hose away from the annular hollow frame is connected to an air suction pump 2, which is fixedly installed on the bottom of the inner cavity of the shell, and the top of the annular hollow frame is connected to a number of silicone soft suction heads, and a control panel is fixedly installed on the outside of the shell.

[0006] Preferably, the balls are evenly distributed on opposite sides of the sliding seat and the annular slide rail in a circumferential linear manner, and the bottom of the sliding seat is in sliding contact with the top of the outer ring.

[0007] Preferably, the slide bar is fixedly mounted on the opposite side of the mounting frame, and the servo motor is fixedly mounted on the outer side of the mounting frame via a bracket.

[0008] Preferably, the end of the second high-precision solenoid valve away from the gas hose is fixedly installed on the outside of the sliding seat, the interior of the second high-precision solenoid valve away from the gas hose is connected to the interior of the annular tube, and the nozzles are evenly distributed on opposite sides of the sliding seat in a circumferentially staggered manner.

[0009] Preferably, the bottom of the top plate on the opposite side of the annular hollow frame is fixedly installed inside the shell through a bracket, the annular hollow frame presents a structural form of a large ring nested in a small ring, and the combination of multiple annular hollow frames is distributed, the electro-hydraulic telescopic column 2 is evenly distributed circumferentially at the bottom of the annular hollow frame, and the silicone soft suction head is evenly distributed circumferentially at the top of the annular hollow frame.

[0010] Preferably, an image acquisition camera and an infrared sensor are fixedly mounted on the bottom of the movable base.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: when the device is in use, the user places the mechanism that needs to be compressed on the top of the annular hollow frame, and then starts the air suction pump 2 to extract the air flow inside the annular hollow frame through the air suction hose, thereby applying an adsorption force to the positioning mechanism through the silicone soft suction head, thereby preliminarily fixing the compression mechanism, and then clamping and compressing other installation mechanisms through the electric-controlled compression clamping mechanism. When the position of the electric-controlled compression clamping mechanism needs to be adjusted, such as starting the air delivery pump 1, the air flow is introduced into the high-precision solenoid valve 2 through the air delivery hose, and is then released through the high-precision The opening and closing of the second solenoid valve introduces the airflow into the interior of the annular tube, and the airflow ejected through the annular tube and the nozzle exerts a force on the sliding seat. The sliding seat moves under the rolling support of the ball bearing and the annular slide rail, and then the servo motor rotates to drive the high-precision screw to rotate. The high-precision screw exerts a threaded transmission force on the moving seat. The moving seat moves linearly under the limit of the slide rod, thereby driving the electric-controlled clamping mechanism to move to the appropriate position, thereby changing the displacement of the electric-controlled clamping mechanism, making it easier to move and position and clamp different sizes to assist in assembly.

[0012] The utility model adopts the ring-type design of multiple annular hollow frames. When parts of different sizes are placed on the top of the annular hollow frames, the multiple annular hollow frames and the soft silicone suction heads exert adsorption force on the bottom of the parts, which is convenient for fixing parts of different sizes. The height of the different annular hollow frames can be controlled by the extension and retraction of the electric-controlled hydraulic telescopic column 2, which is convenient for changing the height of the annular hollow frames at the annular parts and positions where adsorption is not required. In addition, the suction hose and the solenoid valve are added to control the suction flow, which is convenient for coordinating and controlling different annular hollow frames and the soft silicone suction heads to generate suction, facilitates the pressing and fixing operations of assembly clamping, and increases the overall convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the utility model when viewed from the rear or upward direction.

[0015] Figure 3 It is a front sectional structural schematic diagram of the utility model.

[0016] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the figure: 1. Shell; 2. Control panel; 3. Outer ring; 4. Top plate; 5. Annular hollow frame; 6. Silicone soft suction head; 7. Annular slide rail; 8. Annular tube; 9. Sliding seat; 10. Nozzle; 11. High-precision solenoid valve (II); 12. Air supply hose; 13. Electric-controlled hydraulic telescopic column (I); 14. High-precision lead screw; 15. Mounting frame; 16. Slide rod; 17. Moving seat; 18. Air supply pump (I); 19. Servo motor; 20. Electric-controlled clamping mechanism; 21. Suction pump (II); 22. Suction hose; 23. Solenoid valve (I); 24. Electric-controlled hydraulic telescopic column (II); 25. Hollow bracket; 26. Ball bearing. DETAILED DESCRIPTION

[0018] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 4The utility model provides a technical solution: a pressing and positioning device for assembling aerospace parts, comprising a shell 1, an outer ring 3 is fixedly installed on the outer side of the top of the shell 1, an annular slide rail 7 is fixedly installed on the top of the outer ring 3, two sliding seats 9 are slidably sleeved on the outer side of the annular slide rail 7, a number of balls 26 are rollingly installed on the inner sides of the two sliding seats 9, an electro-hydraulic telescopic column 13 is fixedly installed on the top of the two sliding seats 9, a mounting frame 15 is fixedly installed on the output end of the electro-hydraulic telescopic column 13, a high-precision screw rod 14 is movably installed on the inside of the mounting frame 15 through a bearing, a moving seat 17 is connected to the outer side of the high-precision screw rod 14 by thread transmission, a sliding rod 16 is movably sleeved on the other side of the moving seat 17, one end of the high-precision screw rod 14 is transmission-connected to a servo motor 19, an air pump 18 is fixedly installed on the top of the moving seat 17, and the output end of the air pump 18 is connected to two air hoses 12. The other ends are connected to high-precision solenoid valves 21, and annular tubes 8 are fixedly installed inside the two sliding seats 9. One side of the annular tube 8 is connected to the nozzle 10. The bottom of the movable seat 17 is fixedly installed with an electrically controlled clamping mechanism 20. The top of the shell 1 is fixedly installed with a top plate 4. The inner side of the top plate 4 is movably penetrated and sleeved with a number of annular hollow frames 5. The bottom of the annular hollow frame 5 is fixedly installed with a number of electrically controlled hydraulic telescopic columns 24. The bottom end of the electrically controlled hydraulic telescopic column 24 is fixedly installed inside the shell 1, and a hollow bracket 25 is fixedly installed inside the annular hollow frame 5. The bottom of the annular hollow frame 5 is connected with an air suction hose 22, and the interior of the air suction hose 22 is connected with an electromagnetic valve 1 23. The end of the air suction hose 22 away from the annular hollow frame 5 is connected with an air suction pump 21, which is fixedly installed at the bottom of the inner cavity of the shell 1. The top of the annular hollow frame 5 is connected with a number of silicone soft suction heads 6, and the outside of the shell 1 is fixedly installed with a control panel 2.

[0020] The working principle of the above technical solution is as follows: when in use, the user places the mechanism that needs to be compressed on the top of the annular hollow frame 5, and then starts the air suction pump 21 to extract the air flow inside the annular hollow frame 5 through the air suction hose 22, thereby applying an adsorption force to the positioning mechanism through the silicone soft suction head 6, thereby preliminarily fixing the compression mechanism, and then clamping and compressing other installation mechanisms through the electric-controlled compression clamping mechanism 20. When it is necessary to adjust the position of the electric-controlled compression clamping mechanism 20, such as starting the air delivery pump 18, the air flow is introduced into the high-precision solenoid valve 2 11 through the air delivery hose 12, and the high-precision solenoid valve 2 11 is opened and closed. The air flow is introduced into the interior of the annular tube 8, and the air flow is ejected through the annular tube 8 and the nozzle 10 to apply a force to the sliding seat 9. The sliding seat 9 moves under the rolling support of the ball 26 and the annular slide rail 7, and then the high-precision screw 14 is driven to rotate by the servo motor 19. The high-precision screw 14 applies a threaded transmission force to the moving seat 17. The moving seat 17 performs linear motion under the limitation of the slide rod 16, thereby driving the electric-controlled clamping mechanism 20 to move to the appropriate position, thereby changing the displacement of the electric-controlled clamping mechanism 20, which is convenient for movement and positioning and clamping of different sizes to assist in assembly.

[0021] In another embodiment, Figure 1-Figure 4 As shown, the balls 26 are evenly distributed on opposite sides of the sliding seat 9 and the annular slide rail 7 in a circumferential linear manner, and the bottom of the sliding seat 9 is in sliding contact with the top of the outer ring 3.

[0022] The balls 26 provide rolling support for the opposite sides of the sliding seat 9 and the annular slide rail 7, thereby reducing friction, increasing the sliding smoothness of the sliding seat 9 and the annular slide rail 7, and providing stability.

[0023] In another embodiment, Figure 1-Figure 4 As shown, the slide bar 16 is fixedly mounted on the opposite side of the mounting frame 15, and the servo motor 19 is fixedly mounted on the outside of the mounting frame 15 through a bracket.

[0024] The slide rod 16 provides sliding limit and support for the movable seat 17. After being fixed, the servo motor 19 drives the high-precision screw rod 14 to rotate, thereby achieving stable operation of the structure.

[0025] In another embodiment, Figure 1-Figure 4 As shown, the end of the high-precision solenoid valve 11 away from the gas hose 12 is fixedly installed on the outside of the sliding seat 9, the interior of the high-precision solenoid valve 11 away from the end of the gas hose 12 is connected to the interior of the annular tube 8, and the nozzles 10 are evenly distributed on the opposite sides of the sliding seat 9 in a circular staggered manner.

[0026] The high-precision solenoid valve 11 controls the output airflow of the gas hose 12, thereby stably guiding the airflow introduced into the ring tube 8 by the gas hose 12, making it easier to control the airflow through the nozzle 10 and facilitate stable control.

[0027] In another embodiment, Figure 1-Figure 4 As shown, the bottom of the top plate 4 on the opposite side of the annular hollow frame 5 is fixedly installed inside the shell 1 through a bracket. The annular hollow frame 5 presents a structural form of a large ring nested in a small ring, and the combination of multiple annular hollow frames 5 is distributed. The electric-controlled hydraulic telescopic columns 24 are evenly distributed on the bottom of the annular hollow frame 5 in a circular manner, and the silicone soft suction heads 6 are evenly distributed on the top of the annular hollow frame 5 in a circular manner.

[0028] The utility model adopts the ring-type design of multiple annular hollow frames 5. When parts of different sizes are placed on the top of the annular hollow frame 5, the multiple annular hollow frames 5 and the silicone soft suction head 6 exert adsorption force on the bottom of the parts, which is convenient for fixing parts of different sizes. The height of different annular hollow frames 5 can be controlled by the extension and retraction of the electric-controlled hydraulic telescopic column 24, which is convenient for changing the height of the annular hollow frame 5 at the annular parts and positions where adsorption is not required. In addition, the suction hose 22 and the solenoid valve 23 are added to control the suction flow, which is convenient for coordinating and controlling different annular hollow frames 5 and the silicone soft suction head 6 to generate suction, facilitates the pressing and fixing operations of assembly clamping, and increases the overall convenience.

[0029] In another embodiment, Figure 1-Figure 4 As shown, an image acquisition camera and an infrared sensor are fixedly installed on the bottom of the movable base 17.

[0030] The control end of the control panel 2 is electrically connected to the signal receiving ends of the high-precision solenoid valve 2 11, the electric-controlled hydraulic telescopic column 13, the air pump 18, the servo motor 19, the electric-controlled clamping mechanism 20, the suction pump 21, the solenoid valve 1 23 and the electric-controlled hydraulic telescopic column 24 through a wire. The signal input end of the control panel 2 is electrically connected to the output ends of the image acquisition camera and the infrared sensor through a wire, which facilitates automation and precision control through the control panel 2, increases the convenience of the operation of the overall structure, and the control panel 2 is based on existing technology and is internally provided with a programmable single-chip microcomputer structure, which facilitates programmed automatic control.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressing and positioning device for assembling aerospace parts, comprising a housing (1), characterized in that: An outer ring (3) is fixedly mounted on the outer side of the top of the housing (1), an annular slide rail (7) is fixedly mounted on the top of the outer ring (3), two sliding seats (9) are slidably sleeved on the outer side of the annular slide rail (7), a plurality of balls (26) are rollingly mounted on the inner sides of the two sliding seats (9), an electric-controlled hydraulic telescopic column (13) is fixedly mounted on the top of the two sliding seats (9), an output end of the electric-controlled hydraulic telescopic column (13) is fixedly mounted on a mounting frame (15), and a high-pressure hydraulic cylinder (13) is movably mounted on the interior of the mounting frame (15) through a bearing. The high-precision screw rod (14) is connected to a movable seat (17) through a threaded transmission on the outer side of the high-precision screw rod (14), and a sliding rod (16) is movably sleeved on the other side of the movable seat (17). One end of the high-precision screw rod (14) is connected to a servo motor (19), and an air pump (18) is fixedly installed on the top of the movable seat (17). The output end of the air pump (18) is connected to two air hoses (12), and the other ends of the two air hoses (12) are connected to high-precision electromagnetic valves (11). The two sliding The inside of the seat (9) is fixedly installed with an annular tube (8), one side of the annular tube (8) is connected to a nozzle (10), the bottom of the movable seat (17) is fixedly installed with an electric control clamping mechanism (20), the top of the shell (1) is fixedly installed with a top plate (4), the inner side of the top plate (4) is movably penetrated and sleeved with a plurality of annular hollow frames (5), the bottom of the annular hollow frame (5) is fixedly installed with a plurality of electric control hydraulic telescopic columns (24), the bottom end of the electric control hydraulic telescopic columns (24) is fixedly installed in the inside of the shell (1), the annular A hollow bracket (25) is fixedly installed inside the annular hollow frame (5), the bottom of the annular hollow frame (5) is connected to an air suction hose (22), the interior of the air suction hose (22) is connected to an electromagnetic valve (23), the end of the air suction hose (22) away from the annular hollow frame (5) is connected to an air suction pump (21), the air suction pump (21) is fixedly installed at the bottom of the inner cavity of the shell (1), the top of the annular hollow frame (5) is connected to a plurality of silicone soft suction heads (6), and a control panel (2) is fixedly installed on the outside of the shell (1).

2. The pressing and positioning device for assembling aerospace parts according to claim 1, characterized in that: The balls (26) are evenly distributed on opposite sides of the sliding seat (9) and the annular slide rail (7) in a circumferential linear manner, and the bottom of the sliding seat (9) is in sliding contact with the top of the outer ring (3).

3. The pressing and positioning device for assembling aerospace parts according to claim 1, characterized in that: The slide bar (16) is fixedly mounted on the opposite side of the mounting frame (15), and the servo motor (19) is fixedly mounted on the outside of the mounting frame (15) via a bracket.

4. The pressing and positioning device for assembling aerospace parts according to claim 1, characterized in that: The end of the second high-precision solenoid valve (11) away from the gas hose (12) is fixedly installed on the outside of the sliding seat (9), the interior of the end of the second high-precision solenoid valve (11) away from the gas hose (12) is connected to the interior of the ring tube (8), and the nozzles (10) are evenly distributed on the opposite sides of the sliding seat (9) in a circumferentially staggered manner.

5. The pressing and positioning device for assembling aerospace parts according to claim 1, characterized in that: The bottom of the top plate (4) on the opposite side of the annular hollow frame (5) is fixedly installed inside the shell (1) through a bracket. The annular hollow frame (5) presents a structural form of a large ring nested in a small ring, and the combination of multiple annular hollow frames (5) is distributed. The second electrically controlled hydraulic telescopic column (24) is evenly distributed on the bottom of the annular hollow frame (5) in a circumferential manner, and the silicone soft suction head (6) is evenly distributed on the top of the annular hollow frame (5) in a circumferential manner.

6. The pressing and positioning device for assembling aerospace parts according to claim 1, characterized in that: An image acquisition camera and an infrared sensor are fixedly mounted on the bottom of the movable seat (17).

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