Visual assembly device and method based on spatial symmetric intersection point

Abstract

The invention belongs to the technical field of part detection, adjustment and installation, and particularly relates to a visual assembly device and method based on spatial symmetric intersection points. The assembling device comprises a first lifting platform, a second lifting platform, a fan-shaped sensor, a middle adjusting device supporting face, a stand column, a distance sensor and a coaxiality sensor, and the second lifting platform and the fan-shaped sensor are both arranged on the first lifting platform; the second lifting platform is connected with a middle adjusting device supporting surface through a spring; the stand column is arranged above the supporting face of the middle adjusting device. The bushing is fixed at the upper end of the upright; a positioning installation bearing used for installing the nose landing gear of the airplane is arranged in the lining, the two end faces of the positioning installation bearing are each provided with a distance sensor, and a coaxiality sensor is arranged on the outer ring of the bearing in a sleeving mode.

Description

Technical Field

[0001] This application belongs to the technical field of component detection, adjustment and installation, and specifically relates to a visualization assembly device and method based on spatial symmetry intersection points. Background Art

[0002] In practical applications, the installation of the front landing gear bearing of an aircraft often relies on manual labor. It is more difficult to install bearings with longer dimensions and larger radii. This is mainly because the bearing itself is heavy, and it is necessary to repeatedly adjust the bearing position. The manual operation intensity is relatively high, and the bearing position will change, resulting in relatively large precision errors in the assembly. During installation, multiple sensors need to cooperate to operate. The precise positioning and installation of the bearing play a key role in the normal operation of the equipment. If the installed bearing has a large bending deformation, it will not only reduce the operating precision of the bearing, increase the wear amount, but also increase the driving load of the motor, resulting in increased energy consumption and greatly reducing the service life of the bearing. If the installation position accuracy of the aircraft front landing gear is insufficient, it will have a huge impact on the touchdown strength of the front landing gear and pose a huge safety hazard to the aircraft.

[0003] Based on this, a visualization assembly method based on spatial symmetry intersection points is proposed, which can not only ensure the installation accuracy of the bearing, but also has a high installation efficiency and can save a large amount of labor costs. Summary of the Invention

[0004] Object of the Invention: To provide a visualization assembly device and method based on spatial symmetry intersection points, which can not only ensure the installation accuracy of the bearing, but also have a high installation efficiency and can save a large amount of labor costs.

[0005] Technical Solution: A visualization assembly device based on spatial symmetry intersection points includes: a first lifting platform, a second lifting platform, a sector sensor, an intermediate adjustment device support surface, a column, a distance sensor, and a coaxiality sensor. Among them, The second lifting platform and the sector sensor are both arranged on the first lifting platform; the intermediate adjustment device support surface is connected to the second lifting platform through a spring; the column is arranged above the intermediate adjustment device support surface; a bushing is fixed to the upper end of the column; the positioning and installation bearing of the aircraft front landing gear is installed in the bushing, and a distance sensor is arranged on each of the two end faces of the positioning and installation bearing, and the coaxiality sensor is sleeved on the outer ring of the bearing.

[0006] Further, the bushing is fixed to the upper end of the column by a buckle.

[0007] Further, the first lifting platform includes an external protective shell and a plurality of first servo motors, and the plurality of first servo motors are used to control the lifting of the first lifting platform.

[0008] Further, the second lifting platform includes an external protective shell and a plurality of second servo motors, wherein the plurality of second servo motors are used to control the lifting of the second lifting platform.

[0009] Further, the sector sensor is detachably arranged on the first lifting platform and is applicable to a variety of mobile carriers.

[0010] Further, the coaxiality sensor, the distance sensor and the positioning and mounting bearing are detachably connected, and the coaxiality sensor can slide relative to the bearing.

[0011] Further, each coaxiality sensor is composed of eight detection probes, and the probes can be telescoped to obtain position information.

[0012] Further, it further includes moving wheels, and the moving wheels are arranged below the first lifting platform.

[0013] A visualization assembly method based on a spatial symmetric intersection point, the method is executed based on the above-mentioned visualization assembly device based on a spatial symmetric intersection point, and the method includes: Determine the coordinate system: stipulate that the direction from the tail to the nose of the aircraft is the positive direction of the X axis, the direction perpendicular to the ground and vertically upward is the positive direction of the Z axis, and the direction of the Y axis is judged according to the positive directions of the X axis and the Z axis through the Cartesian coordinate system; Select a bushing with a suitable size, open the buckle, and fix the positioning and mounting bearing of the aircraft nose landing gear through the buckle; Rotate the positioning and mounting bearing of the aircraft nose landing gear in the XOY plane; adjust the parallelism between the positioning and mounting bearing and the pre-installation position with the aid of the sector sensor; Adjust the lifting and pitching of the positioning and mounting bearing through the first lifting platform and the second lifting platform. The coaxiality sensor measures the coaxiality between the landing gear inner insert and the aircraft outer insert, and gives timely data feedback. According to the data feedback, adjust and correct the lifting and pitching of the positioning and mounting bearing through the first lifting platform and the second lifting platform until the landing gear inner insert and the aircraft outer insert are coaxial; Obtain the distance between the landing gear inner insert and the aircraft outer insert through the distance sensor, and move the bearing along the axial direction until the distance between the landing gear inner insert and the aircraft outer insert meets the requirements.

[0014] Further, adjusting the parallelism between the bearing and the pre-installation position with the aid of the sector sensor is specifically: The sector sensor compares the parallelism between the positioning and mounting bearing and the target mounting position, changes the angle of the roll angle of the visualization assembly device based on the spatial symmetric intersection point, realizes the adjustment of the positioning and mounting bearing in the XOY plane, and ensures the parallelism between the positioning and mounting bearing and the target position.

[0015] Beneficial effects: 1. A visualization assembly device based on spatial symmetric intersection points can achieve installation adjustment of bearings in three-dimensional space, including parallelism with the target installation position, coaxiality of the shaft with the external plug of the aircraft and the internal plug of the landing gear, and the distance to the internal and external plugs, ensuring accuracy and effectively improving the efficiency of bearing installation.

[0016] 2. The bearing itself is relatively heavy. Compared with traditional manual installation, the method of the present invention greatly reduces the difficulty of manual operation during installation, ensures safety during the moving process, effectively reduces the demand for manual labor, and greatly improves the work efficiency.

[0017] 3. Wide adaptability: It is applicable to various terrains. Even if the ground of the aircraft cannot be kept completely horizontal and there is an angular inclination, this method is still fully applicable. The bearing lock can be opened, and the bushing can also be replaced, so it can meet the installation of bearings with various different bore diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall schematic diagram of the present invention; Figure 2 is the schematic diagram of the working principle; Figure 3 is the schematic diagram of the coaxiality sensor; Figure 4 is the schematic diagram of the intermediate adjustment device; Figure 5 is the schematic diagram of the bearing lock device; Description of the reference numerals: 1 moving wheel, 2 first servo motor, 3 first outer protective shell, 4 sector sensor, 5 second servo motor, 6 second outer protective shell, 7 intermediate adjustment device support surface, 8 column, 9 distance sensor, 10 coaxiality sensor, 11 positioning and installing bearing, 12 lock, 13 bushing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present application provides a visualization assembly device based on spatial symmetric intersection points, including: a first lifting platform, a second lifting platform, a sector sensor, an intermediate adjustment device support surface, a column, a distance sensor, and a coaxiality sensor. Among them, the second lifting platform and the sector sensor are both arranged on the first lifting platform; the intermediate adjustment device support surface is connected to the second lifting platform through a spring; the column is arranged above the intermediate adjustment device support surface; the bushing is fixed to the upper end of the column; the positioning and installing bearing for the front landing gear of the aircraft is installed inside the bushing, and a distance sensor is arranged on each of the two end faces of the positioning and installing bearing, and the coaxiality sensor is sleeved on the outer ring of the bearing.

[0020] A further improvement of the above solution is that the bushing is fixed to the upper end of the column by a buckle.

[0021] A further improvement of the above solution is that the first lifting platform includes an external protective shell and a plurality of first servo motors, wherein the plurality of first servo motors are used to control the lifting of the first lifting platform.

[0022] A further improvement of the above solution is that the second lifting platform includes an external protective shell and a plurality of second servo motors, wherein the plurality of second servo motors are used to control the lifting of the second lifting platform.

[0023] A further improvement of the above solution is that the sector sensor is detachably arranged on the first lifting platform and is applicable to a variety of mobile carriers.

[0024] A further improvement of the above solution is that the coaxiality sensor, the distance sensor and the positioning mounting bearing are detachably connected, and the coaxiality sensor can slide relative to the bearing.

[0025] A further improvement of the above solution is that each coaxiality sensor consists of eight detection probes, and the probes can be telescoped to obtain position information.

[0026] A further improvement of the above solution is that it further includes moving wheels, which are arranged below the first lifting platform.

[0027] A visualization assembly method based on the spatial symmetric intersection point, the method is executed based on the above visualization assembly device based on the spatial symmetric intersection point, and the method includes: Determine the coordinate system: stipulate that the direction from the tail to the nose of the aircraft is the positive direction of the X axis, the direction perpendicular to the ground and vertically upward is the positive direction of the Z axis, and the direction of the Y axis is judged according to the positive directions of the X axis and the Z axis through the Cartesian coordinate system; Select a bushing with a suitable size, open the buckle, and fix the positioning mounting bearing of the aircraft nose landing gear through the buckle; Rotate the positioning mounting bearing of the aircraft nose landing gear in the XOY plane; adjust the parallelism between the positioning mounting bearing and the pre-installation position with the help of the sector sensor; Adjust the lifting and pitching of the positioning mounting bearing through the first lifting platform and the second lifting platform. The coaxiality sensor measures the coaxiality between the inboard of the landing gear and the outboard of the aircraft, and gives timely data feedback. According to the data feedback, adjust and correct the lifting and pitching of the positioning mounting bearing through the first lifting platform and the second lifting platform until the inboard of the landing gear and the outboard of the aircraft are coaxial; Obtain the distance between the inboard of the landing gear and the outboard of the aircraft through the distance sensor, and move the bearing along the axial direction until the distance between the inboard of the landing gear and the outboard of the aircraft meets the requirements.

[0028] A further improvement of the above solution is that adjusting the parallelism between the bearing and the pre-installation position with the help of the sector sensor is specifically: The sector sensor adjusts the rolling angle of the visualization assembly device based on the spatial symmetric intersection point by comparing the parallelism between the positioning and mounting bearing and the target mounting position, so as to realize the adjustment of the positioning and mounting bearing in the XOY plane and ensure the parallelism between the positioning and mounting bearing and the target position. The technical solution of the present invention will be described in detail below with reference to the drawings and embodiments.

[0029] As shown in the attached Figures 1-5 figure, a visualization assembly method based on a spatial symmetric intersection point includes: a sector sensor 4. The sector sensor 4 can be applicable to a variety of mobile carriers through a detachable connection. Taking an installation vehicle as an example. A coaxiality sensor 10 and a distance sensor 9. The coaxiality sensor 10 and the distance sensor 9 are detachably connected to a positioning shaft 11. The coaxiality sensor 10 can slide relative to the positioning and mounting bearing 11. Each coaxiality sensor 10 is composed of eight detection probes, and the probes can be extended and retracted to obtain position information.

[0030] The installation vehicle is lifted at the four corners of the vehicle body by four first servo motors 2 to ensure the stability of the bearing 11 during the lifting process. There are four small synchronous second servo motors 5 in the middle of the lifting vehicle to finely adjust the position of the positioning and mounting bearing 11.

[0031] After being installed in the horizontal direction, a coaxiality sensor 10 is installed outside the positioning and mounting bearing 11. The coaxiality sensor 10 feeds back data in a timely manner. After the installation vehicle obtains the data, it is adjusted through manual operation to compare the coaxiality between the inner insertion of the landing gear and the outer insertion of the aircraft. By lifting and swinging the position of the positioning and mounting bearing 11 by the installation vehicle, the pitch angle of the bearing is adjusted, so as to ensure the coaxiality between the positioning and mounting bearing 11 and the target mounting position. Finally, the values of the distance sensors 9 at both ends of the bearing are compared with the values of the inner insertion of the landing gear and the outer insertion of the aircraft. By moving the distance of the trolley to the left and right, the position of the bearing is ensured to meet the final accuracy requirements.

[0032] A visualization assembly method based on a spatial symmetric intersection point. The method can be applicable to the precise installation of bearings with various diameters. The specific operation steps are as follows: (1) Select a bushing 13 with a suitable size, open the lock 12, and install the positioning and mounting bearing 11.

[0033] (2) The trolley horizontally forks the bearing 11 and makes a rough adjustment with the installation position of the front landing gear of the aircraft. By comparing the parallelism between the bearing 11 and the installation position of the lower hatch bottom cover through the sector sensor 4 and the target installation position of the front landing gear of the aircraft, the position of the trolley is finely adjusted and rotated again to meet the parallelism of the bearing in the XOY plane.

[0034] (3)The installation vehicle is connected to the positioning and installation bearing 11 through the second servo motors 5 at the four corners of the vehicle body for lifting, and moves towards the target installation position of the positioning and installation bearing 11 for rough adjustment. The coaxiality sensor 10 on the positioning and installation bearing 11 can slide along the positioning and installation bearing 11. After the rough adjustment of the positioning and installation bearing 11, the coaxiality sensor 10 first extends eight probes outward for the inner insertion hole diameter information of the landing gear until it is completely fitted with the inner wall of the inner insertion hole to obtain the position information. Then, the coaxiality sensor 10 continues to slide along the bearing to detect the position information of the outer insertion hole of the aircraft through eight probes. By comparing the data fed back before and after, the installation vehicle is adjusted to ensure the coaxiality.

[0035] (4)The distance sensors 9 at both ends of the positioning and installation bearing 11 obtain the distance information between the inner insertion and the outer insertion by comparing the two distance sensors 9. The trolley is connected to the positioning and installation bearing 11 and moves along the axial direction until the installation position requirements of the positioning and installation bearing 11 are met, so that the positioning and installation bearing 11 is in a suitable position.

Claims

1. A visualization assembly device based on spatial symmetric intersection points, characterized in that, Including: a first lifting platform, a second lifting platform, a sector sensor, a middle adjustment device support surface, a column, a distance sensor, a coaxiality sensor, wherein, The second lifting platform and the sector sensor are both arranged on the first lifting platform; a middle adjustment device support surface is connected to the second lifting platform through a spring; the column is arranged above the middle adjustment device support surface; a bushing is fixed to the upper end of the column; a positioning and mounting bearing for installing the front landing gear of the aircraft is installed in the bushing, and a distance sensor is arranged at each of the two end faces of the positioning and mounting bearing, and the coaxiality sensor is sleeved on the outer ring of the bearing.

2. The visualization assembly device based on the spatial symmetry intersection point according to claim 1, wherein The bushing is fixed to the upper end of the column by a buckle.

3. The visualization assembly device based on spatial symmetric intersection points according to claim 1, characterized in that The first lifting platform includes an external protective shell and a plurality of first servo motors, wherein the plurality of first servo motors are used to control the lifting of the first lifting platform.

4. The visual assembly device based on the spatial symmetry intersection point according to claim 1, characterized in that The second lifting platform includes an external protective shell and a plurality of second servo motors, wherein the plurality of second servo motors are used to control the lifting of the second lifting platform.

5. The visualization assembly device based on spatial symmetric intersections according to claim 1, characterized in that The sector sensor is detachably arranged on the first lifting platform and is applicable to a variety of mobile carriers.

6. The visualization assembly device based on spatial symmetric intersections according to claim 1, characterized in that The coaxiality sensor and the distance sensor are detachably connected to the positioning and mounting bearing, and the coaxiality sensor can slide relative to the bearing.

7. The visual assembly device based on spatial symmetric intersections according to claim 1, characterized in that, Each coaxiality sensor is composed of eight detection probes, and the probes can be telescoped to obtain position information.

8. The visual assembly device based on the spatial symmetric intersection point according to claim 1, wherein It further includes moving wheels, and the moving wheels are arranged below the first lifting platform.

9. A visualization assembly method based on spatial symmetric intersection points, characterized in that, The method is executed based on the visualization assembly device based on the spatial symmetric intersection point described in any one of claims 1-8, and the method includes: Determine the coordinate system: stipulate that the direction from the tail to the head of the aircraft is the positive direction of the X-axis, the direction vertically upward perpendicular to the ground is the positive direction of the Z-axis, and the direction of the Y-axis is judged according to the positive directions of the X-axis and the Z-axis through the Cartesian coordinate system; Select a bushing with a suitable size, open the lock, and fix the positioning and mounting bearing of the front landing gear of the aircraft through the lock; Rotate the positioning and mounting bearing of the front landing gear of the aircraft in the XOY plane; adjust the parallelism between the positioning and mounting bearing and the pre-installation position with the help of the sector sensor; Adjust the lifting and pitching of the positioning and mounting bearing through the first lifting platform and the second lifting platform, the coaxiality sensor measures the coaxiality between the landing gear inner insert and the aircraft outer insert, and gives timely data feedback, and adjusts and corrects the lifting and pitching of the positioning and mounting bearing through the first lifting platform and the second lifting platform according to the data feedback until the landing gear inner insert and the aircraft outer insert are coaxial; Obtain the distance between the landing gear inner insert and the aircraft outer insert through the distance sensor, and move the bearing along the axial direction until the distance between the landing gear inner insert and the aircraft outer insert meets the requirements.

10. The method according to claim 9, wherein Adjust the parallelism between the bearing and the pre-installation position with the help of the sector sensor, specifically: The sector sensor adjusts the rolling angle of the visualization assembly device based on the spatial symmetric intersection point by comparing the parallelism between the positioning and mounting bearing and the target installation position, so as to realize the adjustment of the positioning and mounting bearing in the XOY plane and ensure the parallelism between the positioning and mounting bearing and the target position.

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