Positioning method of three-coordinate random series positioner

Abstract

The invention discloses a positioning method of a three-coordinate random series positioner. The method comprises the following steps: establishing a reference coordinate system CCS coordinate systemfor positioning; then, moving the three-coordinate following series positioner to the workpiece; then establishing an OCS coordinate system of the three-coordinate random series positioner; calibrating a conversion relation TCCS-to-OCS of a CCS coordinate system relative to an OCS coordinate system; measuring the coordinate value of the positioning point P' of the workpiece relative to the CCS coordinate system; converting the coordinate value of the positioning point P' of the workpiece relative to the CCS coordinate system into the coordinate value relative to the OCS coordinate system; andfinally, moving three coordinate modules of the three-coordinate position-following series positioner, soas to eable the positioning point P to move to the coordinate value position under the OCS coordinate system, and completing positioning of the workpiece by the three-coordinate position-following series positioner.

Description

technical field [0001] The present application relates to a positioning method in aircraft manufacturing, especially in assembly manufacturing, and specifically refers to a positioning method of a three-coordinate positional position serial locator. Background technique [0002] In the aircraft manufacturing industry, a large number of three-coordinate positioners are three-coordinate orthogonal series positioners, that is, the three coordinate modules of X, Y, and Z are all orthogonal in pairs. Since the coordinate system and the reference coordinate system of the three-coordinate orthogonal series locator are both Cartesian coordinate systems, the conversion of the two coordinate systems is orthogonal conversion, and the length is invariant before and after conversion, so the positioning method is simple. [0003] However, the manufacturing accuracy of the three-coordinate orthogonal series locator is high, which requires not only professional skilled personnel, but also h...

AI Technical Summary

Problems solved by technology

[0003] However, the manufacturing accuracy of the three-coordinate orthogonal series locator is high, which requires not only professional skilled personnel, but also high-precision measuring tools and instruments, such as laser interferometers, dial gauges, marble rulers, Invar rulers, etc., making manufacturing Long cycle time and high manufacturing cost

At the same time, the absolute orthogonal series connection of the three coordinates is impossible. Therefore, using the Cartesian coordinate system to directly represent the three-coordinates orthogonal series positioner itself introduces a certain error, resulting in the three-coordinates orthogonal series positioner in the There is a theoretical error in positioning

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