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Thermal error compensation method and system of numerical control machine tool G code embedded parameter

A technology of numerical control machine tools and numerical control systems, applied in general control systems, control/adjustment systems, program control, etc., to achieve the effects of high versatility, convenient installation, and easy integration

Inactive Publication Date: 2017-06-06
WUHAN UNIV OF TECH
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Problems solved by technology

Both the origin translation and handwheel offset methods can only be used for a certain type of CNC system that provides this interface function.

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  • Thermal error compensation method and system of numerical control machine tool G code embedded parameter
  • Thermal error compensation method and system of numerical control machine tool G code embedded parameter
  • Thermal error compensation method and system of numerical control machine tool G code embedded parameter

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Embodiment Construction

[0033] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] The invention proposes a thermal error compensation method for parameters embedded in G codes of a numerically controlled machine tool.

[0035] refer to figure 1 , figure 1 It is a schematic flow chart of the first embodiment of the thermal error compensation method for G-code embedded parameters of the CNC machine tool according to the present invention.

[0036] In the first embodiment of the thermal error compensation method of the G code embedded parameter of the numerical control machine tool that the present invention proposes, comprise the following steps:

[0037] Step S10, obtaining the temperature value of the designated measuring point on the CNC machine tool in real time, and calculating the thermal error prediction value of the machine tool according to the temperature value;

[0038] Step S20,...

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Abstract

The invention discloses a thermal error compensation method of numerical control machine tool G code embedded parameters. The method includes the following steps: obtaining a temperature value of a designated measuring point in a numerical control machine tool in real time, and calculating a thermal error predicted value of the machine tool; obtaining a compensation value through calculation according to the calculated thermal error predicted value, and sending the compensation value to a register in a PLC of a numerical control system; and when a G code operation instruction is received, reading the current compensation value, and enabling G codes with the compensation value to be operated. The thermal error compensation method is high in universality, and runs safely and reliably.

Description

technical field [0001] The invention relates to the technical field of thermal error compensation of numerical control machine tools, in particular to a thermal error compensation method and a system thereof for parameters embedded in G codes of numerical control machine tools. Background technique [0002] CNC machine tools play a very important role in high-end equipment processing, and the requirements for processing accuracy are getting higher and higher. Studies have shown that among the various errors of the CNC machine tool processing system, the geometric error and thermal error account for the largest average proportion. Usually, these two errors can account for 45% to 65% of the total error of the machine tool processing system. When the machine tool works for a long time, the more high-precision the machine tool is, the greater the proportion of part machining errors caused by the thermal deformation of its process system to the total machining errors, which can a...

Claims

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Application Information

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IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/35015
Inventor 刘泉徐智强娄平葛济宾李炆峰严峻伟
Owner WUHAN UNIV OF TECH
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