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Position measuring system and method based on grating ruler and encoder

A grating ruler and encoder technology, applied in the field of measurement, can solve the problems of poor field practicability, poor usability, and difficulty in implementation.

Pending Publication Date: 2018-05-29
SHANDONG JIANZHU UNIV
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  • Abstract
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Problems solved by technology

The laser tracker has high cost and poor usability, while other methods including the multi-laser displacement measurement method have problems such as being easily limited by space, poor on-site practicability, and difficult to implement.

Method used

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  • Position measuring system and method based on grating ruler and encoder
  • Position measuring system and method based on grating ruler and encoder
  • Position measuring system and method based on grating ruler and encoder

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Embodiment Construction

[0020] A position measuring system based on a grating ruler and an encoder is composed of a data acquisition device 1, a magnetic connection device 2, a numerical control device 3 and a computer terminal 4. The magnetic connection device 2 is divided into two connection modules, respectively It is connected to the end effector of the numerical control device 3 and the data acquisition device 1, and the data acquisition device 1 is connected to the computer terminal 4 through a data cable.

[0021] The data acquisition device 1 is composed of a device base 1.1, an encoder mounting base 1.2, a rotary encoder 1.9, two bearings 1.5, two bearing supports 1.4, a flange coupling 1.3, and an L-shaped connecting angle iron 1.6 , Data acquisition card 1.8 and grating ruler 1.7, the encoder mounting base 1.2 is fixed to the device base 1.1, the rotary encoder 1.9 and the encoder mounting base 1.2 are connected by bolts , The two bearing supports 1.4 are fixed to the side of the encoder moun...

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Abstract

The invention provides a position measuring system and method based on a grating ruler and an encoder, and belongs to the technical field of measurement. The system is composed of a data collection device, a magnetic connection device, a numerical control device and a computer terminal. A rotary encoder and a grating ruler are taken as the main measurement components, when the numerical device moves, the grating ruler rotates taking the rotary encoder as the center, data of the rotary encoder and the optical ruler is acquired in real time by a data collection card and the computer terminal, relative coordination of an end effector of the numerical device is obtained by calculation to achieve real-time position measuring of the numerical device when the numerical device moves on a fixed plane, operation of the measuring process is convenient, data accuracy of measurement is higher, and by adopting the magnetic connection device, safety and reliability of the device are improved.

Description

Technical field [0001] The invention relates to a position measuring system and a measuring method based on a grating ruler and an encoder, in particular to a real-time measuring system and measuring method for the terminal position of mechanical equipment such as robots and machine tools, belonging to the technical field of measurement. Background technique [0002] With the development of science and technology, there are strict requirements for the precise positioning, speed and acceleration of mechanical equipment during movement. In actual engineering, it is often necessary to measure the position, speed and acceleration of the equipment end or execution end in real time. At present, the main measurement methods include: laser tracker, multi-laser displacement measurement method and camera tracking methods. The laser tracker has high cost and poor ease of use, while other methods including the multi-laser displacement measurement method have problems such as susceptibility t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 姬帅彭椿皓胡天亮陶飞倪鹤鹏张承瑞
Owner SHANDONG JIANZHU UNIV
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