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Method for rapidly and accurately measuring specified length of low-cost steel

A measurement method and a technology for determining the length of a ruler. It is applied in the direction of measuring devices, instruments, and optical devices. It can solve the problems that the long ruler cannot be guaranteed to be straight, the error of the measurement result, and the large manual error, so as to shorten the time-consuming and accurate measurement. High precision and easy operation

Inactive Publication Date: 2015-03-25
WUKUN STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not only time-consuming, but also has a large manual error. Due to the material characteristics of the long steel tape, the long tape cannot be guaranteed to be straight or the size of the long tape itself changes due to temperature fluctuations, resulting in large errors in the measurement results.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] On the inspection platform of the production line, first coordinate with the operator to temporarily stop the operation of the steel on the chain and confirm the steel that needs to be inspected. Temporarily fix a hard paper sheet with a thickness of 0.6mm on one end of the steel to be tested with a magnet, so that the hard paper is close to the cut section of the steel to be tested and kept parallel to the cut section, and the hard paper is close to one side of the steel to be tested as the base of measurement. Attach the laser length measuring instrument of model DEL 40 Professional to the other end of the unfixed cardboard of the inspected steel, so that the measurement surface of the laser length measuring instrument is parallel to the cutting section, and the measurement can be started. The measuring distance is The point where the laser is emitted is to the datum plane at the other end, and the cardboard is removed after the measurement is completed. Record the m...

Embodiment 2

[0022] On the inspection platform of the production line, first coordinate with the operator to temporarily stop the operation of the steel on the chain and confirm the steel that needs to be inspected. Temporarily fix a wood chip with a thickness of 0.5mm on one end of the steel to be tested with a magnet, so that the wood chip is close to the cut section of the steel to be tested and kept parallel to the cut section. The side of the wood chip that is close to the steel to be tested is used as the measurement reference plane. Attach the model DEL 40 Professional laser length measuring instrument to the other end of the unfixed wood chip of the inspected steel, so that the measuring surface of the laser length measuring instrument is parallel to the cutting section, and then the measurement can be started. The measuring distance is the length of the length measuring instrument emitting laser point to the reference plane at the other end, and remove the wood chips after the meas...

Embodiment 3

[0024] On the inspection platform of the production line, first coordinate with the operator to temporarily stop the operation of the steel on the chain and confirm the steel that needs to be inspected. Temporarily fix a plastic sheet with a thickness of 0.3mm on one end of the steel to be tested with a magnet, so that the plastic sheet is close to the cut section of the steel to be tested and kept parallel to the cut section. The side of the plastic sheet that is close to the steel to be tested is used as a measurement reference noodle. Attach the model DEL 40 Professional laser length measuring instrument to the other end of the unfixed plastic sheet of the inspected steel, so that the measuring surface of the laser length measuring instrument is parallel to the cutting section, and then the measurement can be started. The measuring distance is the emission distance of the length measuring instrument. The point of the laser is to the datum plane at the other end, and the pla...

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Abstract

The invention discloses a method for rapidly and accurately measuring the specified length of low-cost steel. The method includes the work procedures of datum orientation, measurement and standard comparison, firstly, a datum sheet is temporarily fixed to one end of the detected steel, tightly attached to the cut section of the detected steel, and kept parallel to the cut section, and the face, tightly attached to the detected steel, of the datum sheet serves as a measurement datum plane; a laser length measuring instrument is tightly attached to the other end, where the datum sheet is not fixed, of the detected steel, a measuring face of the laser length measuring instrument is kept parallel to the cut section, measurement can be conducted, the distance between a point, emitting lasers, of the laser length measuring instrument and the datum plane at the other end is the measuring distance, and the datum sheet is detached after measurement is conducted; a measurement result is recorded and compared with a standard so that whether the actual length of the steel meets the requirement for the specified length of the standard or not can be judged. The method for rapidly and accurately measuring the specified length of the low-cost steel can be conducted through single-person operation, measurement efficiency, stability and stability are comprehensively improved, investment is small, the method can be used for a long time, and the popularization value is high.

Description

technical field [0001] The invention belongs to the technical field of steel size measurement, and in particular relates to a fast, accurate and low-cost steel length measurement method. Background technique [0002] The profiles in the steel products are delivered according to the fixed length in the market. The accuracy of the fixed length of the steel will affect the use and settlement weight of the steel. Therefore, users are very concerned about the accuracy of the fixed length, and the fixed length is also It has become a mandatory inspection item for the factory inspection of such products. The measurement method adopted by all steel mills is to use a long steel tape, and two inspectors measure at both ends of the inspected steel respectively to obtain the measurement results. This method not only takes a long time, but also has a large manual error. Due to the material characteristics of the long steel tape, the long tape cannot be guaranteed to be straight or the s...

Claims

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Application Information

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IPC IPC(8): G01B11/02
Inventor 张炬李步云潘颖荣杨长明周字勇殷洪钢杨青显
Owner WUKUN STEEL
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