Self-centering target ball mounting stand for small bore diameter

A self-centering, small-aperture technology, applied in the direction of using optical devices, measuring devices, using re-radiation, etc., can solve problems such as the inability to achieve gapless fit, and achieve the effect of eliminating assembly gaps

Inactive Publication Date: 2009-04-15
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the accuracy of the measured hole itself is low, improving the accuracy of the positioning post of the target ball mounting seat cannot achieve a gap-free fit with the measuring hole.

Method used

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  • Self-centering target ball mounting stand for small bore diameter
  • Self-centering target ball mounting stand for small bore diameter

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Experimental program
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Effect test

Embodiment Construction

[0013] in figure 1 in. The mounting seat is composed of a target ball mounting head 2 and a positioning column 4 two parts. It is suitable for installing 1.5 inch or 0.5 inch target ball. The target ball 3 can be a corner cube mirror or a TBR mirror. The target ball mounting head 2 with the positioning column 4 has a cylindrical center hole for placing the cylindrical magnet 1 in the center of the axially outer spherical groove of the large end step, and the cylindrical magnet 1 is coaxially assembled in the cylindrical center hole , The target ball 3 is attracted to the cylindrical magnet 1. The target ball mounting head 2 with a spherical groove in the center is coaxially connected to the positioning column 4. A fractal groove 6 is formed at the junction of the positioning column 4 and the large end step of the target ball mounting head 2. A hollow hole 7 is formed on the central axis of the positioning column 4. On the cylindrical surface of the positioning column 4 is made fi...

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PUM

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Abstract

The invention discloses a self-centering target-ball mounting seat used for small caliber. A column-shaped magnet (1) absorbing a target-ball 3 is arranged at the center of an axial outer sphere groove of the big-end step of a target-ball mounting seat head (2); the center of a positioning column (4) is hollow; a groove (5) provided with the cross-shaped section projection is arranged along the whole length of the column face of the hollow positioning column (4). A target-ball column-shaped magnet is arranged at the center of the sphere groove to absorb the target-ball so as to realize the self centering. The hollow positioning column (4) is divided into four pieces of elastic positioning pieces by the cross groove and the elastic positioning pieces generate elastic distortion to lead the positioning column to closely contact with apertures to be measured so as to eliminate the mounting clearance between the two parts, avoid the bigger deviation of the measurement result and reduce the mounting error of the target-ball mounting seat. The self-centering target-ball mounting seat is especially suitable for the laser tracing measurement of apertures of 3 to 8mm and the aperture tolerance under IT12.

Description

Technical field [0001] The present invention relates to a laser tracking device for measuring the coordinate position of a target ball. More specifically, the present invention relates to a self-centering mounting seat for mounting the target ball, especially suitable for a small-aperture self-centering target ball mounting seat . Background technique [0002] Laser tracking measurement is a tracking measurement by which the laser beam hits the corner cube of the target ball and returns according to the original path. According to the direction of laser emission and the distance from the laser emitting point to the target ball, the tracking measurement is performed by calculating the coordinates of the target ball's position. The laser tracking measurement range is large and the measurement accuracy is high. A Leica LTD840 laser tracker with a measurement radius of 40m can achieve a measurement accuracy of ±15μm+6μm / m in the full range. Since the shape of the target ball is spher...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01S7/481G01S17/42
Inventor 黄跃刘勇李江雄柯映林
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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