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A precision control method for inertial group assembly

A control method and assembly precision technology, applied in the field of machining precision control of underwater vehicles, can solve problems such as strict reliability, increased inertial group maintenance costs, restrictions on the flexibility and rapid response of underwater vehicles, and achieve Improve processing accuracy, improve use flexibility and response speed, and save confirmation time

Active Publication Date: 2020-10-30
CSIC NO 710 RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method of use virtually increases the maintenance cost of the inertial set, limits the flexibility and quick response of the underwater vehicle, and also puts forward more stringent requirements for the reliability of the inertial set

Method used

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  • A precision control method for inertial group assembly
  • A precision control method for inertial group assembly

Examples

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Effect test

Embodiment 1

[0037] When the integrated navigation system is a combination of inertial navigation, Doppler log and acoustic correlation log, the specific steps of the inertial assembly precision control method provided by the present invention include:

[0038] Step 1. One-time clamping and processing the inertial group on the carrier to install the positioning plate. First, the underwater vehicle carrier cabin section 12 that does not contain the inertial group mounting plate is clamped at a suitable position of the processing machine tool, such as figure 2 As shown, the inertial navigation mounting plate 10 in the carrier, the speed log transducer mounting plate 13 in the carrier and the sound-related speed log transducer mounting plate 16 in the carrier are processed to form the inertial navigation mounting surface 11 in the carrier and the speed log transducer installation in the carrier. Faces 14, 15, 17 and 18. During the above-mentioned processing process, the underwater vehicle c...

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Abstract

The invention discloses a method for controlling the assembly precision of an inertial group. The inertial group installation positioning surface on the carrier is processed by one clamping, and the calibration special tooling whose accuracy meets the requirements is produced, and the installation position of the inertial group on the carrier is determined by the calibration special tooling. At the same time, the inertial group can be calibrated underwater by using the special tooling for calibration, so that the inertial group can be accurately assembled to the carrier without re-calibration, which reduces the calibration cost during the use of underwater vehicles and saves the confirmation of navigation accuracy. Time, improving the flexibility and quick response of the underwater vehicle. In addition, a set of special tooling for calibration can be used to prepare the installation holes of multiple sets of carriers, which simplifies the processing procedure, improves the processing accuracy, and reduces the production cost.

Description

technical field [0001] The invention relates to the field of machining accuracy control of underwater vehicles, in particular to an inertial group assembly accuracy control method. Background technique [0002] Integrated navigation using inertial navigation components is a commonly used navigation method for underwater vehicles. In order to obtain higher autonomous navigation accuracy, when the relative position of the inertial group is fixed, it is necessary to measure the scale factor and correct the installation error through calibration. At present, the inertial set applied to the underwater vehicle needs to be calibrated after being assembled on the underwater vehicle carrier, and after the calibration is successful, the components contained in the inertial set cannot be disassembled. If any set of components needs to be calibrated Disassemble, and complete inspection, repair or status confirmation. When it is reassembled in place, it still needs to be recalibrated to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B73/00
CPCB63B71/00
Inventor 牛群峰江国金方石武雷金碧霞
Owner CSIC NO 710 RES & DEV INST
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