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Digital control method and system for carrying out real-time compensation for thermal deformation errors

A technology for thermal deformation error and real-time compensation, applied in general control systems, control/regulation systems, program control, etc., to achieve the effects of low cost, strong real-time performance and good operability

Inactive Publication Date: 2012-02-29
数驱技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, in the above-mentioned patent application technology, a strong real-time economical and effective compensation method for the comprehensive error caused by thermal deformation is not proposed.

Method used

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  • Digital control method and system for carrying out real-time compensation for thermal deformation errors
  • Digital control method and system for carrying out real-time compensation for thermal deformation errors
  • Digital control method and system for carrying out real-time compensation for thermal deformation errors

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Embodiment Construction

[0036] Such as figure 1 The digital control system of a CNC machine tool shown includes a control information manufacturing system 1 , a programmable data flow controller 3 , an actuator 4 of the CNC machine tool and a temperature detection device 5 . The control information manufacturing system 1 is connected with a programmable data flow controller 3 through a field bus 2 . The actuator 4 is connected with the programmable data flow controller 3 . The temperature detection device 5 is connected with the programmable data flow controller 3 , and the temperature detection device 5 is used to monitor the temperature change of each component of the machine tool, and transmit the detected temperature of each component of the machine tool to the data flow controller 3 .

[0037] The hardware platform of the control information manufacturing system 1 is a general PC system, and the software platform is a graphical interface operating system, a communication system, and the like. ...

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Abstract

The invention discloses a digital control method and a system for carrying out real-time compensation for thermal deformation errors of working machines. The prior technique of real-time compensation for thermal deformation errors depends on mathematical models and error compensation equations. The invention is not concerned about the mechanism and the process of the generation of thermal deformation errors caused by many nonlinear factors, does not need to establish highly specialized complex mathematical models and error compensation equations, but is only concerned about the comprehensive effect actually generated by the nonlinear factors, namely the distribution of the thermal deformation errors in different temperature ranges. For the thermal deformation errors in the expected temperature range, a plurality of groups of distribution matrices of multidimensional associated data streams with formatted fine structures are generated to carry out real-time comprehensive compensation for many kinds of multiaxial thermal deformation errors. The method is open and restructurable.

Description

technical field [0001] The invention belongs to the field of advanced control and relates to computer digital control technology, in particular to a digital control method and system for real-time compensation of thermal deformation errors of working machines. Background technique [0002] Precision and ultra-precision machining are indispensable processing methods in the development of cutting-edge technology, and are at the forefront of the current advanced manufacturing field. Precision and ultra-precision CNC machine tools are the primary condition for realizing precision machining and an important basic equipment for realizing advanced manufacturing technology. [0003] Many errors will inevitably occur in machine tool manufacturing, and new errors will inevitably occur in the process of machine tool processing. Real-time compensation for these errors in the control system is an economical and effective technical means to improve the machining accuracy of machine tools...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/404
Inventor 江俊逢
Owner 数驱技术有限公司
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