High-precision special-shaped profile laser measuring instrument

Abstract

The invention discloses a high-precision special-shaped profile laser measuring instrument which comprises a bottom plate and a moving device. A front side and a rear side of an upper surface of the bottom plate are fixedly connected with a lower end of a U-shaped mounting seat. Two mounting plates are arranged in the middle of a lower surface of the bottom plate. The moving device comprises a motor, a gear, a fixed plate, a sliding table, two sliding rods and a U-shaped rack. The rack is arranged on a side surface of a mounting base, lower ends of the two sliding rods are fixedly connected with the front and rear sides of the upper surface of the bottom plate, and ends of the two sliding rods penetrate through two sliding holes in a side face of the sliding table correspondingly. An uppersurface of the sliding table is fixedly connected with the middle of a lower surface of the fixed plate, and a motor is arranged in the middle of an upper surface of the fixed plate. According to thehigh-precision special-shaped profile laser measuring instrument, a laser measuring head can rotate around a profile by 180 degrees for measurement, and laser emitted by the laser measuring head irradiates various hollow places on a surface of the profile.

Description

technical field [0001] The invention relates to the technical field of laser measurement, in particular to a high-precision laser measuring instrument for special-shaped profiles. Background technique [0002] Laser, that is, "amplified light due to stimulated radiation", is a highly directional, monochromatic light produced by excited atoms, ions or molecules under the action of photons to form stimulated radiation. and beams of great brightness and high energy or high power density, laser is a new type of light source that came out in the 1960s. It is a man-made, special type of non-ionizing radiation. The existing laser detection devices can only pass a Two-dimensional motion and two-dimensional motion are used to detect profiles. When the shape of the profiles is irregular or there are potholes, the beam emitted by the laser is not perpendicular to the potholes, which may cause the potholes to not be detected and the measurement data of the profiled profile. precise. ...

AI Technical Summary

Problems solved by technology

[0002] Laser, that is, "amplified light produced by stimulated radiation", is a highly directional, monochromatic light produced by stimulating atoms, ions or molecules in an excited state under the action of photons to form stimulated radiation. And beams with great brightness and high energy or high power density. Laser is a new type of light source that came out in the 1960s. It is an artificial and special type of non-ionizing radiation. The existing laser detection device can only pass through a When the shape of the profile is irregular or has potholes, the beam emitted by the laser is not perpendicular to the potholes, which may cause the potholes to be undetected and cause the measurement data of the profile to be inaccurate. precise

[0003] The existing application number is 201520198503.4, which discloses a high-precision special-shaped profile laser measuring instrument. The laser of each measuring head emits a linear laser with a suitable width to irradiate the circumference of the measured object. The laser beam passes through the reflective prism and then irradiates the measured object. In the above, several beams (at least three beams) of laser beams are irradiated on different segments of the horizontal circumference of the measured object, and the consistency of the light emitting positions of each laser beam must be ensured, so as to ensure that several beams of strip light converge in the direction of the horizontal circumference of the measured object In fact, this kind of laser measuring instrument is very troublesome in the process of use, and the error of the detection data is relatively large

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