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Speed prediction method of numerical control system, control method of numerical control system and numerical control system

A speed prediction, numerical control system technology, applied in the direction of digital control, general control system, control/regulation system, etc., can solve problems such as nonlinear motion error, speed look-ahead limit, etc.

Pending Publication Date: 2022-01-18
PEITIAN ROBOTICS CO LTD
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Problems solved by technology

[0005] The invention provides the prediction of the speed of the numerical control system, the control method of the numerical control system and the numerical control system to solve the technical problem in the prior art that the speed forward-looking is limited due to the nonlinear motion error in the five-axis linkage numerical control system

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  • Speed prediction method of numerical control system, control method of numerical control system and numerical control system
  • Speed prediction method of numerical control system, control method of numerical control system and numerical control system
  • Speed prediction method of numerical control system, control method of numerical control system and numerical control system

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[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] The terms "first" and "second" in this application are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations there...

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Abstract

The invention discloses a speed prediction method of a numerical control system, a control method of the numerical control system and the numerical control system. The speed prediction method comprises the following steps that a plurality of first sub-processing paths of a cutter for processing a workpiece are obtained; the preprocessing speed of a cutter on the current first sub-processing path is calculated, and rotary cutter center point transformation is carried out to obtain a current second sub-processing path; the average speed and the average acceleration of the cutter on the current second sub-processing path are calculated and verified, so that whether the preprocessing speed is adjusted or not is judged; the final speed of the cutter on the previous first sub-processing path is used as the initial speed of the current first sub-processing path; and according to the initial speed and the preprocessing speed, the final speed of the cutter on the current first sub-processing path is calculated and output. According to the method, the speed coordination of the programming coordinate of the cutter under the workpiece coordinate system and the actual displacement coordinate of the cutter under the machine tool coordinate system under the nonlinear relation can be solved, and the speed and acceleration of the cutter after speed planning are prevented from exceeding the performance limitation of the machine tool.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to speed prediction of a numerical control system, a control method of the numerical control system and the numerical control system. Background technique [0002] For core components such as propellers and impellers used in aviation, ships, automobiles and other fields, there are high-speed and high-finish processing requirements for complex curved surfaces. Traditional three-axis machine tools are inefficient due to the limitation of tool angles, and multiple clamping is easy to produce positioning. The error cannot meet the processing requirements. [0003] The inventors of the present application have discovered during long-term research and development that the five-axis linkage numerical control system can make up for the limitation of the tool angle of the three-axis machine tool and meet the processing requirements of complex curved surfaces. However, th...

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Application Information

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IPC IPC(8): G05B19/416G05B19/4155
CPCG05B19/416G05B19/4155G05B2219/43001G05B2219/45136
Inventor 邓应波黄祥钧
Owner PEITIAN ROBOTICS CO LTD
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