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Machining parameter optimization method based on general cutting energy consumption model

A technology of energy consumption model and processing parameters, applied in general control systems, simulators, instruments, etc., can solve the problem of high energy consumption of machine tools, and achieve the effect of improving processing efficiency and reducing energy consumption

Inactive Publication Date: 2016-01-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem of excessive energy consumption of machine tools caused by existing cutting methods that focus on processing efficiency

Method used

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  • Machining parameter optimization method based on general cutting energy consumption model
  • Machining parameter optimization method based on general cutting energy consumption model
  • Machining parameter optimization method based on general cutting energy consumption model

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specific Embodiment approach 1

[0029] Specific implementation mode one: combine figure 1 To describe this embodiment,

[0030] A processing parameter optimization method based on a general cutting energy consumption model, comprising the following steps:

[0031] Step 1. Analyze the energy consumption characteristics during milling, turning, and drilling, and establish a general cutting energy consumption model for the above processing methods:

[0032] E=SEC·V+P air Δt air (1)

[0033] For each pass there is

[0034] E. i = SEC i ·V i +P airi ·△t airi (2)

[0035] Among them, E is cutting energy consumption; V is the volume of material removed; P air is the empty cutting power; △t air is the time of the empty cutting process; the subscript i is the serial number of the cutting tool, E i 、SEC i , V i ,P airi , Δt airi E, SEC, V, P corresponding to the i-th cutting tool pass respectively air , t air ;

[0036] S E C = P ...

specific Embodiment approach 2

[0045] Specific embodiment two: the time function t of establishing the part processing process described in step 3 of this embodiment w as follows:

[0046] t w = π d V 1000 V c f t Za p a e + t c t πdVV c x - 1 a p y - 1 ...

specific Embodiment approach 3

[0049] Specific embodiment three: the time function t of the part machining process described in step 3 of this embodiment w The process of normalization processing is as follows:

[0050] t w * = t w ( V c , f t , a p , a e ) - t w min t w m a x - ...

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Abstract

The invention provides a machining parameter optimization method based on a general cutting energy consumption model and relates to a machining parameter optimization method, particularly a machining parameter optimization method in consideration of the cutting energy consumption of a machine tool. In the prior art, due to the adoption of a conventional cutting method that lays emphasis on the machining efficiency, the machine tool is too large in energy consumption. In order to solve the above problem, the method comprises the steps of firstly, analyzing the energy consumption characteristics during the milling, turning and drilling process, establishing a general cutting energy consumption model Ei=SECi*Vi+Pairi*delta tairi for each feed, determining the total cutting energy consumption during the milling, turning and drilling process, conducting the normalized treatment on a time function tw and an overall value of the cutting energy consumption during the part machining process to obtain the time function tw and the overall value of the cutting energy consumption during the part machining process after the normalized treatment, with the weighted sum of the time function tw and the overall value of the cutting energy consumption during the part machining process after the normalized treatment as an optimization objective, solving the optimization objective based on the improved genetic algorithm to obtain optimal cutting parameters. The above method is applied to the optimization of machining parameters.

Description

technical field [0001] The invention relates to a processing parameter optimization method, in particular to a processing parameter optimization method considering machine tool cutting energy consumption. Background technique [0002] Reasonable selection of cutting amount in machining can not only improve the efficiency of cutting, but also effectively reduce the energy consumption of machine tool processing, and further reduce the negative impact of machine tool processing on the environment. [0003] At present, most of the research on the optimization of machine tool cutting consumption focuses on the research of machine tool processing efficiency, and there are relatively few studies considering the energy consumption of machine tools. And in engineering practice, CNC machining personnel usually determine the cutting amount of the machine tool during the machining process based on actual machining experience, and these machining experiences often come from machine tool ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 闫纪红李林
Owner HARBIN INST OF TECH
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