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Numerical control system interpolation algorithm and numerical control system

An interpolation algorithm, numerical control system technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as interoperability and interoperability difficult to solve, field bus incompatibility, etc., to achieve strong anti-interference ability, real-time High performance, simple structure and wiring effect

Active Publication Date: 2017-02-15
CHINA ELECTRONICS HARVEST TECH CO LTD
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Problems solved by technology

However, for a long time, the fieldbus is incompatible with each other, and various parties have been arguing endlessly. The intercommunication and interoperability problems are difficult to solve, and there are some design defects.

Method used

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  • Numerical control system interpolation algorithm and numerical control system
  • Numerical control system interpolation algorithm and numerical control system

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Embodiment Construction

[0053] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings, which cannot be used to limit the protection scope of the present invention.

[0054] At present, most servo drives and numerical control systems on the market are based on pulse technology, and the corresponding interpolation algorithm is also designed based on pulse technology. Numerical control systems based on pulse technology have many limitations: complex structure, many connections, low transmission efficiency, limited transmission distance, poor anti-interference ability, poor stability, and not conducive to expansion. The new CNC system using real-time Ethernet bus technology can solve the above problems well. Using real-time Ethernet technology and real-time operating system, the motion control card inserted in the controller is removed, and the stability problems caused by many cards are avo...

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Abstract

The invention discloses a numerical control system interpolation algorithm and a numerical control system. The algorithm comprises: in a real-time operation system layer, an interpolation operation thread receives real-time control data transmitted by a non-real-time operation system layer; the interpolation operation thread uses a preset interpolation algorithm to calculate position control information of a servo driver of each sub-station from the real-time control data; and a bus communication thread is used for calling back the position control information of the servo driver and sending the position control information to the servo driver. According to the technical scheme, the numerical system interpolation algorithm is performed on the basis of real-time Ethernet bus technology. The structure and wiring are simple; the algorithm is high in real-time degree and transmission efficiency, long in transmission distance, good in anti-interference capability and stability, and easy for expansion and maintenance.

Description

technical field [0001] The invention relates to the technical field of core basic equipment manufacturing industry, in particular to a numerical control system interpolation algorithm and a numerical control system. Background technique [0002] CNC machine tools belong to the core basic equipment manufacturing industry, known as "industrial mother machines", and are widely used in the fields of automobiles, aerospace, military industry and 3C manufacturing. It reflects the degree of development of a country's manufacturing industry and is a high-tech technology that determines a country's achievements in precision manufacturing. The CNC system is the "brain" of the CNC machine tool, which determines the key factors such as the performance, function and reliability of the CNC machine tool. [0003] According to the information of the input part program, the numerical control device densifies the space between the starting point and the end point of the curve described by th...

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Application Information

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IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/35408
Inventor 石韬王忠卫郭会昭陈绕马文波程远
Owner CHINA ELECTRONICS HARVEST TECH CO LTD
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