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Device and method for automatically measuring geometric initial defects of structural member

A technology of geometric initial defects and structural components, applied in the field of measurement, can solve the problems of difficult operation, poor practicability, and inability to measure accurate measurement of special-shaped components, etc., and achieve the effect of high measurement accuracy and easy operation of equipment

Pending Publication Date: 2019-06-07
XIANGTAN UNIV
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Problems solved by technology

[0003] Aiming at the problems that the measurement of geometric initial defects of steel structural components is not easy to operate, unable to measure special-shaped components, accurate measurement or poor practicability, the present invention proposes a device and method for automatically measuring geometric initial defects of structural components

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  • Device and method for automatically measuring geometric initial defects of structural member

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Embodiment Construction

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0020] Such as figure 1 As shown, a device for automatically measuring initial geometric defects of structural components in the present invention includes a measurement system, a positioning control system 6 , a data acquisition system 7 and a measurement platform 5 .

[0021] The measurement system includes a laser displacement sensor 4, a stepper motor 1, an X-axis screw 2, a Y-axis screw 3, two Y-axis screw 3 are vertically fixed on the measurement platform 5, and the top of the Y-axis screw 3 Connect the stepper motor 1, the two ends of the X-axis screw 2 are respectively connected to the screw nuts set on the two Y-axis screw 3, one end of the X-axis sc...

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Abstract

The invention discloses a device for automatically measuring geometric initial defects of a structural member. The device comprises a measuring system, a positioning control system, a data acquisitionsystem and a measuring platform; the measuring system comprises a laser displacement sensor, stepper motors, an X-axis lead screw and Y-axis lead screws; the two Y-axis lead screws are vertically fixed to the measuring platform, and the top ends of the Y-axis lead screws are connected with the stepper motors; the two ends of the X-axis lead screw are connected with lead screw nuts arranged on thetwo Y-axis lead screws correspondingly; one end of the X-axis lead screw is connected with the corresponding stepper motor, and the laser displacement sensor is mounted on the lead screw nuts on theX-axis lead screw; and the positioning control system is connected with the stepper motors, and the data acquisition system is connected with the displacement sensor and outputs data to a PC terminal.The invention further provides a method for automatically measuring the geometric initial defects of the structural member. The measuring trajectory can be set by initially inputting a coordinate value or a section form curve to measure the geometric initial defects of the special-shaped member with the specific section.

Description

technical field [0001] The invention belongs to the technical field of measurement, in particular to a device and method for automatically measuring geometric initial defects of structural components. Background technique [0002] In real engineering, there are always various initial geometric defects such as geometric manufacturing defects and cross-sectional shape distortion in steel structural members. In the field of steel structure engineering technology, the local geometric initial defect of the component is a very important acceptance index, which directly affects the bearing capacity and deformation of the component and the structure. The initial geometric defect of the component is a very important influencing factor. The traditional inspection method using straightedge and feeler gauge will be affected by the straightness of the straightedge itself and human subjective uncertainty in the actual operation process, so it is difficult to obtain accurate geometric ini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/24
Inventor 陈俊陈绪林陈超汪威刘一龙杨才千许福曹子美赵晨辉候全超李泽森
Owner XIANGTAN UNIV
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