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DSP-based numerical control machine tool error measurement and compensation system

An error measurement and compensation system technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of poor universality of error compensation models, complex temperature testing, and easy interference of sensor signals, so as to solve signal interference. , Improve the effect of error compensation accuracy

Inactive Publication Date: 2021-12-03
南通福田机床科技有限公司
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Problems solved by technology

[0006] The invention provides a DSP-based CNC machine tool error measurement and compensation system, which solves the defects in the prior art such as complex temperature test, easy interference of sensor signals, and poor versatility of error compensation models.

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  • DSP-based numerical control machine tool error measurement and compensation system

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0027] like figure 1 as shown in figure 1 As shown, the present invention provides an embodiment of a DSP-based CNC machine tool error measurement and compensation system. The processing program is connected with the machine tool CNC system and controls the machine tool CNC system. The machine tool numerical control system is connected with the workbench and controls the work of the workbench; in addition, the machine tool numerical control system is connected wi...

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Abstract

The invention discloses a DSP-based numerical control machine tool error measurement and compensation system. The system comprises a machining program, a machine tool numerical control system, a workbench, an infrared sensor, a laser interferometer, a data collecting and transmitting module and a calculating and processing module. When a machine tool works, the infrared sensor collects the temperature signals of the working table, the laser interferometer collects the displacement signals of the working table, and the data collecting and transmitting module converts the signal information into the data information and transmits the data information to the calculating and processing module, an error compensation signal is output through the comprehensive modeling analysis of a DSP chip, and through the machine tool numerical control system, the error compensation of the workbench is realized. According to the invention, the defects of many temperature sensors and complex wiring in the traditional method are overcome, the problem of signal interference of the temperature sensors is solved, and the error compensation precision is improved.

Description

technical field [0001] The invention relates to the field of numerical control machine tools, in particular to the field of error measurement and compensation of numerical control machine tools. Background technique [0002] The error of the CNC machine tool includes the original error of the machine tool and the error generated during the machining process. The original error is mainly affected by the design accuracy and control accuracy. Due to the limitation of production capacity, it is difficult and costly to reduce the original error. The errors generated during the machining process account for a large proportion, mainly including thermal errors caused by thermal deformation of machine tools, force errors caused by force deformation of machine tools, wear errors caused by tool wear, etc. Each error element does not exist in isolation, but interacts and interacts with each other. As the temperature of the machine tool increases, the positioning error of the machine to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/33036
Inventor 周辉琴周建华
Owner 南通福田机床科技有限公司
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