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Aerospace-grade ball grid inspection system

A detection system and ball grid technology, applied in the field of precision measurement, can solve problems such as limited test conditions, inability to obtain valid data, inability to realize swing and rotation, etc., to achieve improved reliability and accuracy, large swing range, and smooth swing process smooth effect

Active Publication Date: 2021-05-25
SUZHOU KEAIJIA AUTOMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese patent numbers are: 201210556612.X and CN203479545U, the patent name is "multi-dimensional tilting and rocking combination device", which proposes a tilting and rocking device, which can be used for the parts and components used by various laboratories in the world for aircraft, ships, etc. The test simulation of the real installation position or motion trajectory, but its shortcomings are: it cannot realize all-round swing and rotation, and the spatial trajectory of motion cannot be accurately measured, that is, it cannot accurately simulate the real motion trajectory of the test object, making the test Due to limited conditions, accurate valid data cannot be obtained

Method used

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  • Aerospace-grade ball grid inspection system
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  • Aerospace-grade ball grid inspection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The invention provides an aerospace-grade ball grid detection system, such as Figure 1-7 As shown, it includes a base 100, a power cylinder 120, a free plate 200, a top plate 300 and a turntable 400. The turntable 400 swings back and forth on the base 100 with the top plate 300, and the sample is fixed on the turntable 400 to rotate freely, thereby Realize the all-round space motion trajectory simulation of the test object, which is used to test the experimental data of the test object in the space motion trajectory simulation.

[0041] Specifically, a pair of first brackets 110 vertically extend upwards on both radial sides of the base 100, a slot 111 is longitudinally opened on the first bracket 110, and a pair of rotating shaft seats 130 protrude from the center of the base 100, and the rotating shaft seats 130 rotate A power cylinder 120 is provided, and a support 123 with a shaft hole protrudes from the bottom of the power cylinder 120. The support 123 is supporte...

Embodiment 2

[0052] On the basis of Embodiment 1, a rotary support is provided between the lower surface of the turntable 400 and the upper surface of the top plate 300, and the turntable 400 and the top plate 300 are connected through the turntable, so that the rotation of the turntable 400 is smoother. The upper and lower parts of the slewing support are respectively embedded in the turntable 400 and the top plate 300 to reduce the lifting height of the turntable 400 on the top plate 300 .

Embodiment 3

[0054] On the basis of Embodiment 1, a number of installation holes for fixing the test object are provided on the upper surface of the turntable 400, the position accuracy of each installation hole is fixed, and the test object can be installed on the installation hole at a specific position as required, Therefore, the position of the test object on the turntable can be known accurately, and the space movement track of the test object can be accurately determined during the space test, and the precise test result can be obtained by analyzing the measured experimental data.

[0055] The base 100 is provided with a number of positioning holes that match with the mounting holes, and the head-to-tail rotary table 400 of several aerospace-grade ball grid detection systems is selectively connected with the base 100, and only needs to be aligned and fixed with the mounting holes and positioning holes.

[0056] Such as Figure 8 As shown, the end-to-end connection of two aerospace-gr...

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Abstract

An aerospace-grade ball grid detection system comprises a base (100), a power cylinder (120) is rotatably disposed at the center of the base (100); A free plate (200) is provided, an arc-shaped wire groove (210) is opened on the bottom surface of the free plate (200), and the top of the power cylinder (120) is restricted from moving in the arc-shaped wire groove (210); The central axis is rotatably arranged on the upper surface of the top plate (300); the base (100) is provided with a first angular displacement ball grid, which comprises a semi-annular first ball scale (141) and a first ball scale (141) sleeved on the first ball scale ( 141) on the first reading head (142), the first reading head (142) is synchronously arranged on the side wall of the power cylinder (120); the top plate (300) is provided with a second angular displacement ball grid, which includes a A second ball scale (341) with an arc length and a second reading head (342) sleeved on the second ball scale (341), the second ball scale (341) is located on the outer circumference of the top plate (300), and the first The two reading heads (342) are synchronously arranged on the rotary table (400).

Description

technical field [0001] The invention relates to the technical field of precision measurement, and more specifically, the invention relates to an aerospace-grade ball grid detection system. Background technique [0002] The ball grid is a displacement sensor developed in the 1970s. During the detection process of mechanical line displacement or angular displacement, the error of the ball itself is not continuous, but only a periodic phenomenon. Therefore, the control system of the ball grid sensor is If it can be clearly identified and eliminated, the measurement accuracy can be infinitely improved, and its error can also approach zero. At present, this kind of ball grid has been used in high-end equipment. With people's awareness and cost reduction, this ball grid will be popularized in industries and equipment that need to be measured, including aerospace equipment. [0003] The current take-off method of the spacecraft is vertical launch and oblique ascent; the landing me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/02G01B21/22G01C25/00G01M99/00
CPCG01B21/02G01B21/22G01C25/00G01M99/00
Inventor 储建华高霞
Owner SUZHOU KEAIJIA AUTOMATION TECH CO LTD