CN112484672A - Device and method for quickly measuring axial plane of stringer of composite wallboard - Google Patents
Device and method for quickly measuring axial plane of stringer of composite wallboard Download PDFInfo
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- CN112484672A CN112484672A CN202011289332.8A CN202011289332A CN112484672A CN 112484672 A CN112484672 A CN 112484672A CN 202011289332 A CN202011289332 A CN 202011289332A CN 112484672 A CN112484672 A CN 112484672A
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- stringer
- fixed plate
- measuring
- composite wallboard
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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- Length Measuring Devices By Optical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The application discloses a device and a method for quickly measuring the axial plane of a stringer of a composite wallboard, wherein the device comprises a fixed plate, a clamping mechanism, a tension spring, a protective cover, an adjusting handle and a target ball seat, four high-precision holes are formed in four corners of the fixed plate, and the target ball seat is arranged in the center of the fixed plate; the four corners are provided with two symmetrical clamping mechanisms, the two mutually symmetrical clamping mechanisms are used in groups, each group of clamping mechanisms clamps the stud of the composite wallboard stringer to be tested, the target ball is placed on the target ball seat, the composite wallboard stringer axis surface quick measuring device moves along the stud, the space coordinate of the target ball is measured by a laser tracker measuring system in the moving process, the actual measurement axis surface of the composite wallboard stringer to be tested is fitted, the actual measurement axis surface is compared with the theoretical axis surface in the model after being calibrated and compensated, and the calculated deviation value is the manufacturing deviation value of the composite wallboard stringer axis surface.
Description
Technical Field
The application relates to the technical field of aircraft composite wallboard assembly, in particular to a device and a method for quickly measuring the axial plane of a stringer of a composite wallboard.
Background
At present, the total application amount of the composite material on the airplane is rapidly increased in China, and the number and the quality of the composite material parts are continuously improved in the total proportion of the airplane. The composite material wallboard is a form of composite material applied to aircraft parts, and generally the composite material wallboard comprises a composite material skin and a composite material stringer, so that in order to enable the use performance of the composite material wallboard to be optimal, a designer has certain requirements on the assembly position precision of the composite material stringer and the composite material skin, and the requirements are mainly reflected in the end positioning precision requirement of the composite material stringer and the position precision requirement of an axial line surface of the stringer, therefore, after the composite material skin and the composite material stringer are assembled to form the composite material wallboard, the positioning precision of the composite material stringer needs to be measured. The composite material stringer is mainly divided into a plurality of forms such as a T-shaped stringer and an I-shaped stringer, a stringer axial line surface is a central surface of a stringer stud, in actual production measurement, points on one side surface of the stringer stud are measured through a laser tracker as many as possible, the spatial position of one side surface of the stringer stud is fitted, and the position precision of the stringer axial line surface is indirectly calculated according to the thickness of the stringer stud. Due to the fact that the composite stringer is various in form, torsion occurs along with the curvature change of the composite skin, and deviation exists in the thickness of the composite stringer vertical rib, the difficulty in measuring the position precision of the axial plane of the stringer is large, the measuring efficiency is low, the measuring precision is low, and the production efficiency and the product quality are seriously affected. Therefore, in order to meet the production requirements, a measurement device and a measurement method suitable for rapidly measuring the axial plane of the stringer of the composite wallboard are needed to be researched.
Disclosure of Invention
In order to solve the problems, the invention provides a device and a method for quickly measuring the axial plane of a stringer of a composite wallboard. The device can realize automatic centering and positioning of the stringer axial plane on the composite material wallboard through the stringer axial plane measuring device; the laser tracker measuring system can realize real-time tracking and rapid measurement of the spatial position of the stringer axial plane measuring device, and finally rapidly and accurately measure the manufacturing precision of the stringer on the composite material wallboard.
A device for quickly measuring the axial plane of a stringer of a composite wallboard comprises a fixed plate, a clamping mechanism, a tension spring, a protective cover, an adjusting handle and a target ball seat, wherein four corners of the fixed plate are provided with four high-precision holes, the distance tolerance between the holes is +/-0.05 mm, and the center of the fixed plate is provided with the target ball seat; four clamping mechanisms which are symmetrical pairwise are arranged at four corners of a fixed plate, the two clamping mechanisms which are symmetrical to each other are used in groups, each clamping mechanism clamps the stringer studs and can move along the stringer studs, each clamping mechanism comprises a sector gear, a rotating shaft, a swinging arm, a roller and a ball caster, the rotating shaft penetrates through a high-precision hole in the fixed plate, the sector gear is fixed on the rotating shaft above the fixed plate, the swinging arm penetrates through the rotating shaft below the fixed plate and is fixed at the bottom of the rotating shaft, the roller is fixed at one end of the swinging arm, the ball caster is fixed on the bottom surface of the swinging arm, the sector gears of each clamping mechanism group are meshed with each other, the two clamping mechanisms are connected through a tension spring, an adjusting handle comprises an adjusting bolt and a jacking block, the adjusting handle is positioned between the sector gears of the two clamping mechanisms, the jacking block is a, the adjusting bolt is rotated, the jacking block pushes the sector gear to rotate around the rotating shaft, and the protective cover is fixed on the fixed plate and covers all structures on the fixed plate.
A method for quickly measuring the axial plane of a stringer of a composite wallboard comprises the following steps:
fixing a section of standard stringer at an accurate position on a calibration workbench, clamping studs of the standard stringer by using a clamping mechanism of a measuring device, placing target balls on a target ball seat, moving a composite wallboard stringer axis surface rapid measuring device along the studs, measuring space coordinates of the target balls by using a laser tracker measuring system in the moving process, and fitting a real measuring axis surface of the standard stringer;
2, comparing the real measuring axial plane of the standard stringer with the theoretical axial plane in the model, and calculating a deviation value, namely a calibration compensation value;
3, clamping the stud of the composite wallboard stringer to be measured by using a clamping mechanism of the composite wallboard stringer axial surface rapid measuring device, placing a target ball on a target ball seat, moving the composite wallboard stringer axial surface rapid measuring device along the stud, measuring the space coordinate of the target ball by using a laser tracker measuring system in the moving process, and fitting the actual measurement axial surface of the composite wallboard stringer to be measured;
and 4, comparing the actual measurement axis plane of the composite material wallboard stringer to be detected with the theoretical axis plane in the model after compensation of the calibration compensation value, and obtaining the calculated deviation value, namely the manufacturing deviation value of the composite material wallboard stringer axis plane to be detected.
Has the advantages that: the invention provides a device and a method for quickly measuring the axial plane of a stringer of a composite wallboard, which break through the difficult problems that the axial plane of the stringer of the traditional aircraft composite wallboard is difficult to accurately position and measure by the combined application of the device and a laser tracker measuring system, and improve the efficiency and the accuracy of the measurement of the axial plane of the stringer of the composite wallboard of the aircraft. The measuring device has a simple structure, is convenient and quick to operate, and greatly simplifies the measuring process of the original plane composite material wallboard stringer axial plane; the measuring method shortens the measuring time of the stringer axial plane of the aircraft composite wallboard, and greatly improves the measuring efficiency of the stringer axial plane of the aircraft composite wallboard. The measuring device and the measuring method can be directly popularized to the technical field of manufacturing and assembling of other types of airplane composite material wallboards.
The present application is described in further detail below with reference to the accompanying drawings of embodiments:
drawings
FIG. 1 is a schematic view of a fast measuring device
FIG. 2 is a schematic view of a clamping mechanism of the rapid measuring device
FIG. 3 is a schematic view of a rapid measurement device
FIG. 4 is a schematic view of a calibration stage
The numbering in the figures illustrates: the device comprises a fixing plate 1, a clamping mechanism 2, a tension spring 3, a protective cover 4, an adjusting handle 5, a target ball seat 6, a sector gear 7, a rotating shaft 8, a swing arm 9, rollers 10, ball casters 11, a high-precision composite material die 12, a composite material wall panel stringer 13, a composite material wall panel stringer axis surface rapid measuring device 14, a composite material wall panel stringer 15, a calibration workbench 16, a laser tracker measuring system 17, a target ball 18, a supporting frame 18, a working table surface 19, a target hole 20 and a standard stringer 21.
Detailed Description
Referring to fig. 1-4, a device 13 for rapidly measuring the axial plane of a stringer of a composite wallboard comprises a fixed plate 1, a clamping mechanism 2, a tension spring 3, a protective cover 4, an adjusting handle 5 and a target ball seat 6, wherein four corners of the fixed plate 1 are provided with four high-precision holes, the distance tolerance between the holes is +/-0.05 mm, and the center of the fixed plate is provided with the target ball seat 6; four clamping mechanisms 2 which are symmetrical in pairs are arranged at four corners of a fixed plate 1, two clamping mechanisms 2 which are symmetrical to each other are used in a group, each group of clamping mechanisms 2 clamps a stringer stud and can move along the stringer stud, each clamping mechanism 2 comprises a sector gear 7, a rotating shaft 8, a swinging arm 9, a roller 10 and a ball caster 11, the rotating shaft 8 penetrates through a high-precision hole in the fixed plate 1, the sector gear 7 is fixed on the rotating shaft 8 above the fixed plate 1, the swinging arm 9 penetrates through the rotating shaft 8 below the fixed plate 1 and is fixed at the bottom of the rotating shaft 8, the roller 10 is fixed at one end of the swinging arm 9, the ball caster 11 is fixed on the bottom surface of the swinging arm 9, the sector gears 7 of each group of clamping mechanisms 2 are mutually meshed, the two groups of clamping mechanisms 2 are connected through tension springs 3, an adjusting handle 5 comprises an adjusting bolt and a jacking, the kicking block is the triangle-shaped steel billet, installs in adjusting bolt tip, and adjusting bolt installs in the screw hole of safety cover 4 side, and rotatory adjusting bolt, kicking block promote sector gear 7 and revolve 8 rotations of rotation, and safety cover 4 fixes and covers all structures on it on fixed plate 1.
The calibration workbench 15 comprises a support frame 18, a workbench surface 19 and a target hole 20, wherein the support frame 18 is of a truss structure and is a main body frame of the calibration workbench 15 and fixedly connected with the ground; the working table surface 19 is a square block platform and is arranged at the upper part of the supporting frame 18, six target holes 20 are uniformly distributed on the circumference of the working table surface, and the coordinate values of the target holes are engraved near the hole positions; the standard stringer 21 is a high-precision T-shaped stringer and is fixed in the middle of the working table top 19, the actual appearance of the standard stringer 21 is consistent with the theoretical appearance, and the installation pose of the standard stringer on the working table top 19 is consistent with the theoretical state, so that the measurement precision of the composite wallboard stringer axial plane rapid measurement device 13 is calibrated; the high-precision composite material die 12 is used for supporting the composite material wallboard, a plurality of reference holes and target holes are formed in one circle of the high-precision composite material die, so that the composite material wallboard can be accurately positioned, maintained and fixed, an airplane coordinate system required by the whole measuring system is established, and the spatial position and the posture of the composite material wallboard are determined; the high-precision composite mold 12, the laser tracker measurement system 16 are placed in position near the calibration table 15.
A method for quickly measuring the axial plane of a stringer of a composite wallboard comprises the following steps:
fixing a section of standard stringer 21 at an accurate position on a calibration workbench 15, clamping studs of the standard stringer 21 by a clamping mechanism 2 of a composite wallboard stringer axis surface quick measuring device 13, placing a target ball 17 on a target ball seat 6, moving the composite wallboard stringer axis surface quick measuring device 13 along the studs, measuring a space coordinate of the target ball 17 by a laser tracker measuring system 16 in the moving process, and fitting a real measuring axis surface of the standard stringer 21;
2, comparing the real measuring axial plane of the standard stringer with the theoretical axial plane in the model, and calculating a deviation value, namely a calibration compensation value;
3, clamping a stud of the composite wallboard stringer 14 to be measured by using a clamping mechanism 2 of the composite wallboard stringer axial plane rapid measuring device 13, placing a target ball 17 on a target ball seat 6, moving the composite wallboard stringer axial plane rapid measuring device along the stud, measuring a space coordinate of the target ball 17 by using a laser tracker measuring system 16 in the moving process, and fitting a real measuring axial plane of the composite wallboard stringer 14 to be measured;
and 4, comparing the actual measurement axis plane of the composite wallboard stringer 14 to be measured with the theoretical axis plane in the model after compensation of the calibration compensation value, and obtaining the calculated deviation value, namely the manufacturing deviation value of the composite wallboard stringer axis plane to be measured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.
Claims (4)
1. A device for quickly measuring the axial plane of a stringer of a composite wallboard is characterized by comprising a fixed plate, a clamping mechanism, a tension spring, a protective cover, an adjusting handle and a target ball seat, wherein four corners of the fixed plate are provided with four high-precision holes, the distance tolerance between the holes is +/-0.05 mm, and the center of the fixed plate is provided with the target ball seat; four corners of the fixed plate are provided with four clamping mechanisms which are symmetrical in pairs, the two mutually symmetrical clamping mechanisms are used in groups, each group of clamping mechanisms clamps the stringer studs, and can move along the stringer studs, the clamping mechanism comprises a sector gear, a rotating shaft, a swing arm, a roller and a ball caster, the rotating shaft passes through a high-precision hole on the fixed plate, the sector gear is fixed on the rotating shaft above the fixed plate, the swing arm passes through the rotating shaft below the fixed plate, and fix in the pivot bottom, the gyro wheel is fixed in swing arm one end, and the ball truckle is fixed on the swing arm bottom surface, and the sector gear of every group fixture intermeshing connects through the extension spring between two sets of fixtures, and adjustment handle includes adjusting bolt, kicking block, and adjustment handle lies in between the sector gear of two sets of fixtures, and rotatory adjusting bolt, kicking block promote sector gear rotatory around the pivot, and the safety cover is fixed and covers all structures on it on the fixed plate.
2. The device of claim 1, wherein the top block is a triangular steel block mounted to the end of the adjusting bolt.
3. The apparatus of claim 1, wherein the adjustment bolt of the adjustment handle is mounted in a threaded hole in the side of the protective cover.
4. A method for quickly measuring the axial plane of a stringer of a composite wallboard is characterized by comprising the following steps of:
4-1, fixing a section of standard stringer at an accurate position on a calibration workbench, clamping studs of the standard stringer by using a clamping mechanism of a measuring device, placing target balls on a target ball seat, moving a composite wallboard stringer axis surface rapid measuring device along the studs, measuring space coordinates of the target balls by using a laser tracker measuring system in the moving process, and fitting a real measuring axis surface of the standard stringer;
4-2, comparing the actual measurement axis plane of the standard stringer with the theoretical axis plane in the model, and calculating a deviation value, namely a calibration compensation value;
4-3, clamping the stud of the composite wallboard stringer to be measured by using a clamping mechanism of the composite wallboard stringer axial surface rapid measuring device, placing a target ball on a target ball seat, moving the composite wallboard stringer axial surface rapid measuring device along the stud, measuring the spatial coordinate of the target ball by using a laser tracker measuring system in the moving process, and fitting the actual measurement axial surface of the composite wallboard stringer to be measured;
4-4, comparing the actual measurement axis plane of the composite material wallboard stringer to be detected with the theoretical axis plane in the model after compensation of the calibration compensation value, and obtaining the calculated deviation value which is the manufacturing deviation value of the composite material wallboard stringer axis plane to be detected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011289332.8A CN112484672B (en) | 2020-11-17 | 2020-11-17 | Device and method for quickly measuring axial plane of stringer of composite wallboard |
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| CN202011289332.8A CN112484672B (en) | 2020-11-17 | 2020-11-17 | Device and method for quickly measuring axial plane of stringer of composite wallboard |
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| CN112484672B CN112484672B (en) | 2022-04-19 |
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