Laser interference-based comprehensive inspection device for wide-range length measurement instruments
A technology of laser interference and length measurement, applied in measuring devices, mechanical measuring devices, optical devices, etc., can solve problems such as inability to meet correct judgment, low versatility, and measurement accuracy that cannot meet verification and calibration requirements. Achieve accurate and fast measurement, ensure accuracy, and hold firmly
Pending Publication Date: 2019-10-18
HENAN PROVINCE INST OF METROLOGY
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Problems solved by technology
Its measurement accuracy cannot meet the verification and calibration requirements of all large-range length measuring tools, and it cannot meet the correct judgment of the inflection point when measuring large-range inner diameter micrometers and calibration rods, and its versatility is not high.
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[0033] The present invention will be further described below in conjunction with the accompanying drawings.
[0034] Such as figure 1 , figure 2 As shown, the present invention includes a base 7, the top of the base 7 is a working platform 6, and a calibration rod calibration mechanism and a caliper calibration mechanism are arranged on the working platform 6; The straight track on 6 is slidably connected with an interference mirror support 31, a left measurement seat 32, an adjustable V-shaped support 33, a four-dimensional workbench 34 and a right measurement seat 35 on the straight track, and the interference mirror support 31 is located at the left measurement seat 32 on the left side, the adjustable V-shaped support 33 and the four-dimensional workbench 34 are all located between the left measuring seat 32 and the right measuring seat 35, as figure 1 , Figure 6 and Figure 7 As shown, a left micrometer rod 323 is floatingly connected in the left measuring seat 32, a...
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The invention discloses a laser interference-based comprehensive inspection device for wide-range length measurement instruments, and belongs to the technical field of metrological verification of length measurement instruments. The device comprises a base; a working platform is arranged at the top of the base; a calibration rod inspection mechanism, a calipers inspection mechanism and a laser interference assembly are arranged on the working platform; the calibration rod inspection mechanism comprises a straight track which is arranged on the working platform; an interference mirror bracket,a left measurement seat, an adjustable V-shaped bracket, a four-dimensional worktable and a right measurement seat are glidingly connected on the straight track; a left measurement micro rod is connected in the left measurement seat in a floating manner; and a reflector support is arranged on the non-measurement end of the left measurement micro rod. The device is particularly suitable for the inspection and calibration of wide-range general calipers, inside micrometers and master bars; the adjustment of interference light paths is only related to the straightness of moving parts of to-be-tested workpieces, and the requirement for the linearity of the straight track on the base is not high, so that the manufacturing requirement for the base is greatly reduced and the cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of metrology verification of length measuring instruments, and in particular relates to a comprehensive verification device for large-scale length measuring instruments based on laser interference. Background technique [0002] The commonly used length measuring tools in the machinery industry mainly include general-purpose calipers and inner diameter micrometers, which are widely used in manufacturing, installation, and scientific research institutes. Manufacturers or metrological verification departments need to carry out inspections in accordance with national verification regulations. For periodic verification and calibration, measuring tools or verification instruments for small-scale universal calipers and inner micrometers are relatively mature and can meet the verification requirements. However, with the rapid development of the equipment manufacturing industry, the requirements for large-scale lengt...
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Login to View More IPC IPC(8): G01B5/02G01B11/02
CPCG01B5/02G01B11/02Y02E30/30
Inventor 黄玉珠朱记全苏清磊李博程鹏里林芳芳范乃胤刘红乐
Owner HENAN PROVINCE INST OF METROLOGY