Folding control surface gap measuring device and use method

Abstract

The invention provides a folding control surface gap measuring device and a use method, and relates to the field of gap measurement, the folding control surface gap measuring device comprises a basic platform, two sides of the basic platform are respectively provided with a loading assembly and a measuring assembly, and a clamping station is arranged between the measuring assembly and the loading assembly. By adopting the folding control surface gap measuring device and the use method, the problems that the perpendicularity of the load applying direction and the control surface cannot be ensured when the load applying direction is adjusted by manually judging and manually adjusting the position of a fixed pulley tool during manual measurement in the past; and the problem of large gap measurement error caused by manual reading error during micrometer measurement is solved, and the measurement precision is improved.

Description

Technical Field

[0001] The invention relates to the field of gap measurement, and in particular to a folding rudder surface gap measurement device and a use method thereof. Background Art

[0002] There will inevitably be a certain gap in the folding locking mechanism of the rudder surface, the connection between the rudder surface and the rudder shaft, the steering gear transmission mechanism and other links of the folding rudder system during the processing and assembly process. Through preliminary research, it was found that the folding gap is an important influencing factor of the bending stiffness of the rudder system. The existence of the folding gap makes the bending stiffness of the folding rudder system present obvious nonlinear characteristics. The bending stiffness of the rudder system is an important technical indicator for the anti-flutter design of the aircraft. Therefore, it is necessary to deeply study the influence of the folding gap on the bending stiffness of the folding rudder system.

[0003] The folding clearance of the rudder system is the displacement difference at the chord when the rudder surface is bidirectionally loaded, which is generally within 1mm, so the measurement method and measurement equipment have very high accuracy requirements. In the past, the folding clearance was measured manually, using weights to apply loads through a fixed pulley fixture, and using a height micrometer to measure the displacement at the chord. Because it is impossible to ensure that the load is perpendicular to the rudder surface when applied, and the manual reading error of the micrometer, the manual measurement of the folding clearance has a large error. Summary of the invention

[0004] The purpose of the present invention is to provide a folding rudder surface clearance measuring device and a method for using the device, which abandons the traditional manual contact measurement method and adopts a high-precision loading component for automatic loading, thereby solving the problems of inconsistent operating specifications and low accuracy of the dynamometer when manually applying the load; a laser ranging sensor is used to realize non-contact measurement of displacement and automatically read the data, thereby solving the problems of inconsistent contact positions of the micrometer and manual reading errors when measuring twice with bidirectional loading, thereby realizing high-precision measurement of the folding rudder surface clearance.

[0005] To achieve the above-mentioned object, the present invention provides a folding rudder surface clearance measuring device and a method of using the device, comprising a base platform, a loading component and a measuring component are respectively arranged on both sides of the base platform, and a clamping station is arranged between the measuring component and the loading component; The loading assembly is provided with a horizontal module, a vertical electric cylinder is provided on the bottom surface of the horizontal module, load-bearing guide rods are provided on both sides of the vertical electric cylinder to connect with the horizontal module, a loading electric cylinder is provided on one side of the horizontal module, and a claw is provided at one end of the loading electric cylinder; A vertical displacement stage is arranged on the measuring component, a reading head and a displacement sensor are arranged on the vertical displacement stage, a sliding platform is arranged at the bottom end of the vertical displacement stage, a first sliding rail is arranged on one side of the sliding platform, and a grating is arranged at the bottom end of the sliding platform.

[0006] Preferably, a groove is provided on the sliding platform, and the first sliding rail is located in the groove.

[0007] Preferably, the clamping station is provided with a first mounting surface and a second mounting surface, the first mounting surface is provided with a locking cylinder, and the second mounting surface is provided with a clamping cylinder.

[0008] Preferably, a pressure sensor is provided on the claw.

[0009] Preferably, the first mounting table and the locking cylinder are used to fix the tail cabin, and the second mounting table and the clamping cylinder are used to fix the single rudder workpiece.

[0010] Preferably, a blocking block is provided at one end of the grating.

[0011] Preferably, at least one of the vertical translation platform and the sliding platform is provided.

[0012] Preferably, a second slide rail is provided on the vertical translation stage, a mounting plate is provided on both the reading head and the displacement sensor, a slot is provided on the mounting plate, and the second slide rail is located in the slot.

[0013] Preferably, the displacement sensor is a laser rangefinder.

[0014] A method for measuring the clearance of a folding rudder surface comprises the following steps: Step 1: When measuring the clearance of the folding rudder surface, the tail cabin equipped with the rudder system and the single rudder workpiece are fixed on the basic platform of the clamping station through the tooling, the basic platform is rotated until the rudder surface to be measured faces away from the clamping station, and the control button is rotated to fix the basic platform through the locking system; Step 2, operate the mobile loading assembly through the control system software to move the pusher claw to the intersection of the rudder surface chord and the rudder axis; move the sliding platform of the mobile adjustment measuring device so that the displacement sensor is aligned with the position near the pusher claw, and rotate the pneumatic control button to release the locking sliding platform; Step 3. Enter the parameters of the loading force in the control software, click the control software to start acquisition, and the force can be automatically loaded from the loading component to the measurement continuously. The displacement measurement data can be read by the automatic reading head and stored in the control computer. The maximum and minimum displacements of the basic platform when loaded on both sides are read, and the difference between the two displacements is the gap value; Step 4: After the measurement is completed, the loading assembly is moved by the control software to move the finger away from the product position, move it to the lowest point in the vertical direction, and rotate the pneumatic control button to make the basic platform free; Step 5: If the rudder needs to be replaced, repeat steps 1 to 3 to measure the gap. If the product needs to be disassembled, remove the tail cabin and tooling from the base platform.

[0015] Therefore, the present invention adopts the above-mentioned folding rudder surface clearance measuring device and use method, adopts high-precision loading assembly for automatic loading, solves the problems of inconsistent operating specifications and low accuracy of dynamometer when manually applying load; adopts laser ranging sensor to realize non-contact measurement of displacement and automatically reads data, solves the problems of inconsistent contact position of micrometer and manual reading error when two measurements are made under bidirectional loading, and realizes high-precision measurement of folding rudder surface clearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a folding rudder surface clearance measuring device according to the present invention; Figure 2 It is a partial schematic diagram of a folding rudder surface clearance measuring device of the present invention; Figure 3 It is a partial schematic diagram of a folding control surface clearance measuring device of the present invention.

[0017] Reference numerals 1. Basic platform; 2. Measuring component; 21. Vertical translation stage; 22. Reading head; 23. Displacement sensor; 24. Sliding platform; 25. First slide rail; 26. Grating; 27. Block; 28. Second slide rail; 29. ​​Locking structure; 3. Loading component; 31. Horizontal module; 32. Vertical electric cylinder; 33. Load-bearing guide rod; 34. Loading electric cylinder; 35. Puller claw; 36. Pressure sensor; 4. Clamping station; 41. First mounting table; 42. Second mounting table; 43. Locking cylinder; 44. Clamping cylinder. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0019] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0020] Embodiment 1 like Figure 1-3 As shown, a folding rudder surface clearance measuring device includes a basic platform 1, a loading component 3 and a measuring component 2 are respectively arranged on both sides of the basic platform 1, and a clamping station is arranged between the measuring component 2 and the loading component 3.

[0021] A horizontal module 31 is provided on the loading assembly 3, a vertical electric cylinder 32 is provided on the bottom surface of the horizontal module 31, load-bearing guide rods 33 are provided on both sides of the vertical electric cylinder 32 and connected to the horizontal module 31, a loading electric cylinder 34 is provided on one side of the horizontal module 31, and a claw 35 is provided at one end of the loading electric cylinder 34; a pressure sensor 36 is provided on the claw 35, and the claw 35 can be used to move the rudder surface.

[0022] A vertical displacement stage 21 is provided on the measuring component 2, a reading head 22 and a displacement sensor 23 are provided on the vertical displacement stage 21, a sliding platform 24 is provided at the bottom end of the vertical displacement stage 21, a slide rail is provided on one side of the sliding platform 24, and a grating 26 is provided at the bottom end of the sliding platform 24, and the grating 26 can measure the distance moved in the horizontal direction by the measuring component 2. A blocking block 27 is provided at one end of the grating 26, which limits the moving range of the measuring component 2 in the horizontal direction and prevents the measuring component 2 from sliding out of the whole machine. At the same time, after the movement is completed, a locking structure 29 is provided to fix the measuring component 2.

[0023] The sliding platform 24 is provided with a groove, and the first slide rail 25 is located in the groove, so that the measuring assembly 2 can move in the horizontal direction. The vertical displacement stage 21 is provided with a second slide rail 28, and the reading head 22 and the displacement sensor 23 are both provided with a mounting plate, and the mounting plate is provided with a slot, and the second slide rail 28 is located in the slot, so that the reading head 22 and the displacement sensor 23 can move in the vertical direction along the second slide rail 28.

[0024] At least one vertical translation platform 21 and one sliding platform 24 are provided, and the reading head 22 and the displacement sensor 23 are fixed on one vertical translation platform 21. In this embodiment, two vertical translation platforms 21 and two sliding platforms 24 are provided, and the reading head 22 and the displacement sensor 23 are respectively provided on two vertical translation platforms 21, and a sliding platform 24 is provided under each vertical translation platform 21.

[0025] The measurement component 2 can be moved in the horizontal and vertical directions by common manual or electric means.

[0026] The clamping station 4 is provided with a first mounting table 41 and a second mounting table 42. The first mounting table 41 is provided with a locking cylinder 43, and the second mounting table 42 is provided with a clamping cylinder 44. The first mounting table 41 and the locking cylinder 43 are used to fix the tail cabin, and the tail cabin can rotate on the first mounting table 41. The second mounting table 42 and the clamping cylinder 44 are used to fix the single rudder workpiece.

[0027] When locking, the locking cone pin of the locking cylinder 43 is inserted into the basic platform 1 and fixed, and the cylinder supports the locking cone pin and remains motionless. When loosening, the locking cylinder 43 retracts, and the locking cone pin is withdrawn from the first installation table 41, and the first installation table 41 can rotate freely.

[0028] In this embodiment, the displacement sensor 23 uses a high-precision laser displacement sensor 23; the sliding platform 24 and the vertical displacement platform 21 are combined to realize the movement of the laser displacement sensor 23; the electric cylinder and the high-precision force sensor are used to realize the force loading; the lifting system and the horizontal linear module are combined to realize the range of movement of the electric cylinder; a pneumatic three-jaw chuck is used as the basis of the clamping station 4 to clamp the single rudder workpiece.

[0029] The coordinate zero point of the basic platform 1 is at the exact center of the basic platform 1, the X direction is parallel to the long side of the basic platform 1, +X points to the overall clamping station, the Y direction is parallel to the short side of the basic platform 1, +Y points to the measuring component 2, the Z direction is the vertical direction, and +Z is vertically upward. The basic platform 1 is installed above the support frame, and the support frame is connected to the leveling angle below; the loading component 3 is installed as a whole on the long side of the -Y side of the basic platform.

[0030] A support frame is provided below the basic platform 1, and a leveling foot is provided below the support frame. The control system includes control system hardware and software, wherein the control system hardware includes: electric control box, controller, acquisition card, related power cables, and control computer.

[0031] Overall test station test process: 1. Return to zero Adjust the loading component 3 vertically to the lowest position and horizontally to the zero point away from the overall test station. Rotate the loading jaws to a suitable angle. Adjust the measuring component 2 horizontally to the zero point away from the overall test station.

[0032] 2. Install the overall servo assembly to be tested (1) Fix the steering gear assembly to the lower base platform 1 with bolts.

[0033] (2) Rotate the rudder surface to be tested to the test position and align it with the base surface through the mark at base platform 1.

[0034] (3) Turn the pneumatic control knob to the clamping position.

[0035] 3. Adjustment and testing (1) Manually adjust the measuring component 2 to the appropriate position and lock the handwheel and locking handle at the test end.

[0036] (2) Use software control to adjust the position of the loading assembly 3. During the adjustment process, observe that both sides of the loading point claw are located on both sides of the rudder surface to be tested.

[0037] (3) Input the required force, position and other information through the software for detection 4. Replace the rudder surface to be tested After one rudder surface test is completed, the loading assembly 3 and the measuring assembly 2 are lowered and moved away. Loosen the positioning cylinder to select the overall test station, roughly position the scale above the installation table and the basic platform 1, and then lock it again with the positioning cylinder, and repeat the test process.

[0038] Single rudder test process: Return to zero, adjust the position of loading component 3 and measuring component 2 to avoid the space required for the installation of the rudder surface. Adjust the direction of the pusher claw.

[0039] (1) Install the rudder to be tested, align it with the scale on the base platform 1, and then clamp the pneumatic chuck.

[0040] (2) Manually adjust the measuring component 2 to the appropriate position and lock the handwheel and locking handle at the test end.

[0041] (3) Use software control to adjust the position of the loading assembly 3. During the adjustment process, observe that both sides of the loading point claw are located on both sides of the rudder surface to be tested.

[0042] (4) Input the required force, position and other information through the software for testing.

[0043] Therefore, the present invention adopts the above-mentioned folding rudder surface clearance measuring device and use method, abandons the traditional manual contact measurement method, adopts high-precision loading components for automatic loading, solves the problems of inconsistent operating specifications and low accuracy of the dynamometer when manually applying loads; adopts a laser ranging sensor to realize non-contact measurement of displacement and automatically reads data, solves the problems of inconsistent contact positions of the micrometer and manual reading errors during two measurements of bidirectional loading, and realizes high-precision measurement of the folding rudder surface clearance.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A folding rudder surface clearance measuring device, characterized in that: It comprises a basic platform, a loading component and a measuring component are respectively arranged on both sides of the basic platform, and a clamping station is arranged between the measuring component and the loading component; The loading assembly is provided with a horizontal module, a vertical electric cylinder is provided on the bottom surface of the horizontal module, load-bearing guide rods are provided on both sides of the vertical electric cylinder to connect with the horizontal module, a loading electric cylinder is provided on one side of the horizontal module, and a claw is provided at one end of the loading electric cylinder; A vertical displacement stage is arranged on the measuring component, a reading head and a displacement sensor are arranged on the vertical displacement stage, a sliding platform is arranged at the bottom end of the vertical displacement stage, a first sliding rail is arranged on one side of the sliding platform, and a grating is arranged at the bottom end of the sliding platform.

2. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: The sliding platform is provided with a groove, and the first sliding rail is located in the groove.

3. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: The clamping station is provided with a first mounting table and a second mounting table. The first mounting table is provided with a locking cylinder, and the second mounting table is provided with a clamping cylinder.

4. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: A pressure sensor is arranged on the claw.

5. A folding rudder surface clearance measuring device and use method according to claim 3, characterized in that: The first mounting table and the locking cylinder are used to fix the tail cabin, and the second mounting table and the clamping cylinder are used to fix the single rudder workpiece.

6. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: A blocking block is arranged at one end of the grating.

7. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: At least one of the vertical translation platform and the sliding platform is provided.

8. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: The vertical displacement platform is provided with a second slide rail, the reading head and the displacement sensor are both provided with a mounting plate, the mounting plate is provided with a slot, and the second slide rail is located in the slot.

9. A folding rudder surface clearance measuring device and use method according to claim 1, characterized in that: The displacement sensor is a laser rangefinder.

10. A method for using a folding rudder surface clearance measuring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When measuring the clearance of the folding rudder surface, the tail cabin equipped with the rudder system and the single rudder workpiece are fixed on the basic platform of the clamping station through the tooling, the basic platform is rotated until the rudder surface to be measured faces away from the clamping station, and the control button is rotated to fix the basic platform through the locking system; Step 2, using the control system software to operate the mobile loading assembly, so that the pusher claw moves to the intersection of the rudder surface chord and the rudder shaft; Move and adjust the sliding platform of the measuring device so that the displacement sensor is aligned with the position near the position of the finger, and rotate the pneumatic control button to release the locking sliding platform; Step 3. Enter the parameters of the loading force in the control software, click the control software to start acquisition, and the force can be automatically loaded from the loading component to the measurement continuously. The displacement measurement data can be read by the automatic reading head and stored in the control computer. The maximum and minimum displacements of the basic platform when loaded on both sides are read, and the difference between the two displacements is the gap value; Step 4: After the measurement is completed, the loading assembly is moved by the control software to move the finger away from the product position, move it to the lowest point in the vertical direction, and rotate the pneumatic control button to make the basic platform free; Step 5: If the rudder needs to be replaced, repeat steps 1 to 3 to measure the gap. If the product needs to be disassembled, remove the tail cabin and tooling from the base platform.

Images