A simple method and device for measuring flatness
A simple and convenient technology for measuring plane, applied in the direction of mechanical roughness/irregularity measurement, etc., can solve the problems of affecting the measurement results, lack of scientificity, complicated operation, etc., to achieve the effect of reliable measurement data, easy to popularize and apply, and easy to carry.
Active Publication Date: 2017-12-22
BAODING TIANWEI BAOBIAN ELECTRICAL
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Problems solved by technology
The laser leveling instrument is an imported instrument, which is expensive and complicated to operate. It is suitable for high-precision products and has poor popularity; using a steel ruler or an aluminum bar to measure the level is actually replacing the flatness data with straightness data in a single direction, which lacks science. At the same time, the curvature of the steel ruler or the aluminum bar itself will seriously affect the measurement results, and the accuracy is very poor
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[0016] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.
[0017] A simple device for measuring flatness, comprising three fixed magnetic seats 4, one mobile magnetic seat 1, two steel wires, a feeler gauge, three fixed magnetic seats 4 and one mobile magnetic seat 1 It is composed of a magnet 5 and a pull ring 6, and the magnet 5 is provided with a pull ring 6; the height of the pull ring 6 of three fixed magnetic seats 4 and one mobile magnetic seat 1 is the same; the two steel wires are steel wire one 3 and steel wire two 7 , steel wire 1 3 and steel wire 2 7 are arranged crosswise, the two ends of steel wire 1 are respectively tied to the pull rings of two fixed magnetic suction seats, and the two ends of steel wire 2 7 are respectively tied to another fixed magnetic suction seat and a moving magnetic suction seat On the pull ring; the intersection of steel wire one 3 and steel wire two 7 is inserte...
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The invention relates to a simple method and device for measuring flatness and belongs to the detection technical field. According to the technical schemes of the invention, the height of pulling rings (6) on three fixed magnetic suction seats (4) is consistent with the height of a pulling ring (6) of a movable magnet suction seat (1); two steel wires are a steel wire A (3) and a steel wire B (7) respectively, wherein the steel wire A (3) and the steel wire B (7) are arranged in an intersecting manner; two ends of the steel wire A are respectively tied to the pulling rings of two fixed magnetic suction seats; tow ends of the steel wire B are respectively tied to the pulling rings of the other fixed magnetic suction seat and the movable magnet suction seat; and the intersection point of the steel wire A (3) and the steel wire B (7) is plugged into a feeler gauge. According to the simple method for measuring flatness, a datum surface is determined, and representative portions are selected to be compared with the datum surface one by one. The method is scientific and accurate. With the method and device adopted, stressed and tensioned steel wires will not be bent and deformed. The device has the advantages of simple structure, portable convenience, reliable measurement data, low cost and convenience in popularization and application.
Description
technical field [0001] The invention relates to a simple method and device for measuring flatness, belonging to the technical field of detection. Background technique [0002] Large-diameter flanges, steel plates or some large-scale equipment will be deformed to varying degrees after manufacturing, processing, transportation and storage. Therefore, the overall or partial flatness should be tested during delivery acceptance. BACKGROUND OF THE INVENTION There are two common measurement methods: one is to use a laser level gauge to measure; the other is to use a steel ruler or an aluminum bar to measure. The laser leveling instrument is an imported instrument, which is expensive and complicated to operate. It is suitable for high-precision products and has poor popularity; using a steel ruler or an aluminum bar to measure the level is actually replacing the flatness data with straightness data in a single direction, which lacks science. At the same time, the curvature of the s...
Claims
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IPC IPC(8): G01B5/28
CPCG01B5/28
Inventor 李伟李明冯宝纯齐杭宾张建民
Owner BAODING TIANWEI BAOBIAN ELECTRICAL