Speed forecasting method, as well as numerical control device and numerical control system thereof

A speed-forward and speed technology, applied in the direction of digital control, electrical program control, etc., can solve the problems that have not been considered, cannot guarantee the reliability of the method, lack of maintainability and scalability, etc.

Active Publication Date: 2013-02-27
BEIJING A&E TECH
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  • Abstract
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Problems solved by technology

Although this can save time and improve efficiency to a certain extent, there is a certain degree of subjectivity in the definition of sensitive points, which may cause the segments that need to be considered to not be considered, so the reliability of the method cannot be guaranteed.
[0007] (2) Check the sensitive points according to the above-mentioned forward-looking processing method of speed. When performing forward-looking processing on one segment, it is necessary to calculate so

Method used

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  • Speed forecasting method, as well as numerical control device and numerical control system thereof
  • Speed forecasting method, as well as numerical control device and numerical control system thereof
  • Speed forecasting method, as well as numerical control device and numerical control system thereof

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Embodiment approach

[0035] see figure 2 , an embodiment of the speed look-ahead method of the present invention includes:

[0036] Step S101: Calculating the segment lengths of all planned segments in the processing path and the maximum estimated speed of the segment end points corresponding to the segment lengths;

[0037] The numerical control system calculates the segment length of all planning segments in the CNC machining path and the maximum estimated speed of the end point of the segment corresponding to the segment length. Among them, the maximum estimated speed is the maximum speed at the junction of adjacent sections estimated by the system's own factors and the characteristics of the planned section in the preprocessing stage of the speed look-ahead.

[0038] Step S102: saving the calculation results of segment length and maximum estimated speed;

[0039] The numerical control system saves the segment lengths of all planning segments and the calculation results of the maximum estima...

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Abstract

The embodiment of the invention discloses a speed forecasting method which comprises the following steps: calculating section lengths of all planned sections in a processing path and maximum forecasting speed of section end points corresponding to the section lengths; saving the section lengths of all the planned sections and the calculation results of the maximum forecasting speed of the section end points corresponding to the section lengths to finish the preprocessing phase; and performing forecasting processing to each planned section according to the calculation results. The embodiment of the invention further discloses a numerical control device and a numerical control system. By virtue of the methods, the safety and the reliability for processing of the numerical control machine tool is ensured, and the processing efficiency and the processing quality are improved.

Description

technical field [0001] The invention relates to the field of numerical control systems, in particular to a speed look-ahead method, a numerical control device, and a numerical control system. Background technique [0002] Numerical Control System (Numerical Control System) is the abbreviation of numerical control system. It is a special computer system that performs some or all numerical control functions according to the control program stored in the computer memory, and is equipped with interface circuits and servo drives. [0003] During the CNC machining process, the CNC system performs processing according to the processing code input by the user. Usually the user will specify a speed as the target speed in the processing code, but generally does not specify the speed at the end point of each processing section, that is, if some measures are not taken to calculate the speed at the end point of each section, the speed at the end point of each section The control strateg...

Claims

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Application Information

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IPC IPC(8): G05B19/416
Inventor 龚丽辉
Owner BEIJING A&E TECH
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