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Detection device and center point calibration method for alignment of aircraft fork lug holes

A technology of detection device and calibration method, which is applied to measurement devices, optical devices, instruments, etc., can solve problems such as low alignment accuracy, measurement result error, and disc axial movement.

Active Publication Date: 2022-04-08
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Low alignment accuracy: When calibrating the center point of the single lug hole position of the fork lug, manually rotating the disc will cause axial movement, and this process will affect the final measured data
[0006] (2) Since the ball prism is adsorbed on the disk through the target seat, the pitch angle of the ball prism is limited. In the process of rotating the disk, if the rotation angle is too large, the laser tracker will lose light, and a laser tracker is required. Transfer station operation, resulting in low measurement work efficiency
[0007] (3) In long-term use, the rotation of the disc will produce a certain degree of mechanical wear, which will cause errors in the final measurement results

Method used

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  • Detection device and center point calibration method for alignment of aircraft fork lug holes
  • Detection device and center point calibration method for alignment of aircraft fork lug holes
  • Detection device and center point calibration method for alignment of aircraft fork lug holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of detection device that is used for the alignment of aircraft fork lug hole positions comprises single-ear test stick 1 and double-ear test stick 2, and described single-ear test stick is provided with fork ear single ear 3, and described double-ear test stick is provided with Fork ears and double ears 4, a first target seat 5 and a second target seat 6 are respectively arranged at the two ends of the single-ear test rod 1 and the double-ear test rod 2, and the first ball prism 7 is arranged on the first target seat 5 , the second target base 6 is provided with a second ball prism 8 .

[0051] Further, a coaxial structural mandrel is arranged inside the single-ear test rod 1, and the first target seat 5 is installed at both ends of the structural mandrel, and the first ball prism 7 is adsorbed in the ball socket of the first target seat 5; The inside of the binaural test rod 2 is provided with a coaxial structural mandrel, the second target seat 6 is installed o...

Embodiment 2

[0054] A method for calibrating the center point of a detection device for alignment of aircraft fork lug holes, characterized in that it comprises the following steps:

[0055] Step 1. Insert the assembled detection device into the single ear of the fork ear or / and both ears of the fork ear, and use the laser tracker to measure the current position of the two ball prisms;

[0056] Step 2: Rotate the detection device horizontally, and then insert it into the single ear of the fork ear or / and both ears of the fork ear, and use the laser tracker to measure the current position of the two ball prisms. During the two measurements, they are both at the same WCS coordinates Department;

[0057] Step 3: Calculate the measured results, and the obtained point coordinates are the center coordinates of the current inspection rod, and calculate the offset of the center point of the inspection rod according to the center coordinates obtained by the two measurements, so as to complete the a...

Embodiment 3

[0078] A detection device for alignment of aircraft fork ear holes, the device includes a single-ear inspection stick 1, a double-ear inspection stick 2, a single ear 3 of a fork ear, a pair of ears 4 of a fork ear, a first target seat 5, and a second target Seat 6, first ball prism 7, second ball prism 8, etc. The single-ear test rod 1 is matched with the fork ear single-ear 3 through the shaft hole, the first target seat 5 is connected with the single-ear test rod 1, the second target seat 6 is connected with the single-ear test rod 1 through the shaft hole, and the first ball prism 7 is adsorbed in the ball socket of the first target seat 5, and the second ball prism 8 is adsorbed in the ball socket of the second target seat 6.

[0079] The axes of single-ear test rod 1 and double-ear test rod 2 should be kept highly coaxial with the axis of the fork ear single ear 3 and fork ear double ear 4. The hole position tolerance level of single lug 3 and double lug 4 is H8, and th...

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Abstract

This application belongs to the field of aircraft assembly measurement, and specifically relates to a detection device for alignment of aircraft fork lug holes and a center point calibration method thereof, including a single-ear test rod and a double-ear test rod, and the single-ear test rod is provided with a There is a single ear with forked ears, and the double-eared inspection rod is provided with forked ears and double ears, and the two ends of the single-eared inspection rod and the double-eared inspection rod are respectively provided with a target seat and a target seat, and a ball head prism is arranged on the target seat. , the target seat is provided with a ball prism, and a coaxial structural mandrel is arranged inside the single ear test rod, and the two ends of the structural mandrel are installed with a target seat, and the ball prism is adsorbed in the ball socket of the target seat; binaural inspection There is a coaxial structural mandrel inside the rod, and the target seat is installed on the structural mandrel, and the ball head prism is adsorbed in the ball socket of the target seat. This application is more efficient, accurate, and simplifies the measurement process. Bit scaling plays an important role.

Description

technical field [0001] This application belongs to the field of aircraft assembly measurement, and specifically relates to a detection device for alignment of aircraft fork lug holes and a center point calibration method thereof, which can realize rapid and accurate measurement of aircraft fork lug hole positions, improve the efficiency of digital assembly alignment, and improve Alignment quality. Background technique [0002] With the rapid development of my country's manufacturing industry, the digitalization of aircraft attitude adjustment and assembly is being used more and more on the aircraft assembly line to solve the problems of reducing the traditional manual alignment workload and long alignment cycle. [0003] At present, the hole position measurement of the fork lug in domestic digital assembly is combined with a probe and a laser tracker. Algorithm fitting is performed on the measured data. The disc device used in the single ear part of the fork ear is inserte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 王晨申少泽国宏达周伟
Owner CHENGDU AIRCRAFT INDUSTRY GROUP