Method for obtaining and controlling rapid feed power and energy consumption of numerical control machine tool

CN103885387AInactive Publication Date: 2014-06-25ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2014-06-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for obtaining and controlling the rapid feed power and the energy consumption of a numerical control machine tool. The method comprises the following steps that firstly, a maximum feed speed of a feed shaft of the numerical control machine tool is set, and the feed movement power equation and feed system parameters of the feed shaft are obtained; secondly, the computational formula of the rapid feed power and the energy consumption is obtained according to the feed system parameters and the feed movement power equation; thirdly, the feed distance of the feed shaft is set, the feed distance and different maximum feed speeds are combined, combinations of the feed distance and the different maximum feed speeds are substituted into the computational formula of the rapid feed power and the energy consumption, and a rapid feed power peak and different values of energy consumption are obtained through computation; fourthly, according to the rapid feed power peak and the different values of energy consumption, the feed shaft of the numerical control machine tool is controlled according to the appropriate maximum feed speed. By the adoption of the method for obtaining and controlling the rapid feed power and the energy consumption of the numerical control machine tool, accurate rapid feed power and energy consumption can be obtained through prediction, and a computation result can be directly used for evaluation of the energy consumption and energy-saving control of the numerical control machine tool.
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Description

technical field

[0001] The invention relates to the field of machine tool control, in particular to a method for acquiring and controlling fast feed power and energy consumption of a numerically controlled machine tool. Background technique

[0002] The CNC machine tool feed is used for machine tool positioning operations such as advancing and retreating, which can effectively reduce the idle travel time of the machine tool and improve processing efficiency. Rapid feed frequently exists in the process of machine tool operation, and its energy consumption occupies a certain proportion of the total energy consumption of the machine tool. Therefore, it is urgent to study the modeling method of rapid feed power and energy consumption, so as to lay the foundation for the evaluation of machine tool energy consumption and energy-saving control.

[0003] At present, there have been some researches on machine tool energy consumption modeling at home and abroad. For example, the pat...

Claims

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