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Helix Dynamic Measuring Method and Measuring Device

A technology of dynamic measurement and measuring devices, applied in the direction of measuring devices, electrical devices, instruments, etc., can solve the problems of high technical requirements for operators, difficult maintenance and low measurement efficiency, etc., and achieve low environmental requirements and simple structure , Improve the effect of measurement accuracy

Active Publication Date: 2019-05-10
江苏中博物联网科技有限公司
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Problems solved by technology

[0002] In the measurement of the screw helix, there are two measurement methods: one is the static measurement method: for example, in 1966, the five-meter static screw inspection instrument produced by the Shanghai Machine Tool Factory measured a 5-meter screw with a 1-meter linear ruler. , the static screw rod does not rotate, and the measurement is the pitch error of a section. This measurement method has low measurement efficiency and requires two people to complete the measurement.
The second is the dynamic measurement method: this method uses the roundness reference (circular grating) and the length (laser) for phase comparison measurement, and what it measures is the helix error; this measurement method uses a laser screw dynamic measuring instrument. Expensive, and has very high technical requirements for operators, and difficult maintenance; at the same time, there are strict requirements for temperature, humidity, vibration, and air flow, so the general factory is not equipped with this measuring instrument

Method used

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  • Helix Dynamic Measuring Method and Measuring Device
  • Helix Dynamic Measuring Method and Measuring Device
  • Helix Dynamic Measuring Method and Measuring Device

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0028] It should be noted here that the accompanying drawings are only schematic diagrams used to illustrate this solution, and are not drawn strictly to scale. Except for explicit descriptions, they are only used to facilitate the understanding of the solution and do not constitute a substantial limitation to the solution.

[0029] Such as Figure 1 to Figure 8 Shown, the helix dynamic measurement method, it comprises the following steps:

[0030] 1), the measurement of the helix of the reference screw mandrel 100, the computer records the error curve f(x) of the reference screw mandrel 100 基 ;

[0031] 2), the measurement of the helix of the tested screw mandrel 101 is based on the reference screw mandrel 100 in step 1), and the measured screw mandrel 101 and the reference screw mandrel 100 are ...

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Abstract

Provided is a helix dynamic measurement method, comprising the steps of: 1), measuring the helix of a reference screw lever, and recording the error curve f(x) (reference) of the reference screw lever by a computer; and 2) measuring the helix of a measured screw lever, employing the reference screw lever in step 1) as a reference to install the measured screw lever and the reference screw on a same measurement device to perform comparison measurement, and recording the error curve f(x) (measured) of the measured screw lever by the computer, wherein f(x) (measured)= f(x) (reference) + f(x) (actual), and f(x) (actual)= f(x) (measured)- f(x) (reference) . The method employs the error separating technology, compensates for the system error of the reference screw lever, and improves measurement precision; meanwhile a measurement device has the characteristics of simple structure, low costs, low requirements for the environment, and convenient maintenance, and is suitable for wide popularization.

Description

technical field [0001] The invention relates to the technical field of measurement methods and equipment, in particular to a helix dynamic measurement method and a measurement device thereof. Background technique [0002] In the measurement of the screw helix, there are two measurement methods: one is the static measurement method: for example, in 1966, the five-meter static screw inspection instrument produced by the Shanghai Machine Tool Factory measured a 5-meter screw with a 1-meter linear ruler. , the static screw rod does not rotate, and the measurement is the pitch error of a section. This measurement method has low measurement efficiency and requires two people to complete the measurement. The second is the dynamic measurement method: this method uses the roundness reference (circular grating) and the length (laser) for phase comparison measurement, and what it measures is the helix error; this measurement method uses a laser screw dynamic measuring instrument. It i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/00G01B21/00
Inventor 曹诚朱明珍周怀东
Owner 江苏中博物联网科技有限公司
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