A laser tracker plane coordinate high precision lofting device and method

Abstract

The invention relates to a laser tracker plane coordinate high-precision setting out device and method. The device includes: a base body, which is provided with a target ball support portion and an accommodating cavity; a base, which is arranged on the periphery of the base body, is configured to support the base body, and has a constant relative position with the base body in the vertical direction, and a variable relative position in the horizontal direction ; marking assembly, configured to be housed in the accommodation cavity; horizontal adjustment part, configured to be adjustable relative to the base in the vertical direction; position adjustment mechanism, including a horizontal position adjustment device and a longitudinal position adjustment device; a levelness display instrument , including two horizontal bubble instruments whose centerlines along the length direction are perpendicular to each other arranged on the upper surface of the base body, the horizontal or vertical centerline of each horizontal bubble instrument does not pass through the other horizontal bubble instrument. The invention can accurately mark the stakeout coordinates, and improves the accuracy and efficiency of the particle accelerator using the laser tracker to stake out points on the ground.

Description

technical field [0001] The invention relates to the technical field of collimation measurement of particle accelerators, in particular to a device and method for high-precision setting out of plane coordinates of a laser tracker. Background technique [0002] With the continuous improvement of the alignment and installation accuracy of particle accelerator components and the standardized alignment and installation, the alignment and installation of most accelerator components requires a laser tracker and a three-dimensional alignment control network to complete. In the alignment and installation of particle accelerators, a very critical step is to use the laser tracker to set out the geometric center of the accelerator installation components and the main geometric elements of the support system to the theoretical coordinate positions of the accelerator foundation installation ground or embedded parts. The measurement principle of the laser tracker is different from that of ...

AI Technical Summary

Problems solved by technology

There is a problem with this method of stakeout: the target base contacts the stakeout surface. If the stakeout surface is uneven or there are sundries at the bottom of the target base and other factors, it will cause a tilt error of the target base. The target base supports the target ball, because the target base itself The thickness of the laser tracker and the radius of the target ball of the laser tracker will cause the inclination error of the target base to produce a coordinate error of a magnification in the center of the target ball of the laser tracker, and draw a point artificially through the center hole of the target base. The process will also bring errors due to problems such as the alignment of the needle and the hole, and the control of the angle of the needle.

The stakeout error of the position coordinate points of the key components of the accelerator will directly affect the installation accuracy of the accelerator support system. If the stakeout error exceeds the adjustment range of the support system design, it will seriously affect the collimation installation schedule, and then affect the collimation installation of the particle accelerator components. efficiency

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