External Thermal Error Compensation Method for CNC Machine Tool Based on i5 iport Protocol
A compensation method and thermal error technology, applied in the direction of program control, computer control, general control system, etc., can solve the problem of no thermal error compensation system, etc., and achieve the effect of improving machining accuracy and consistency
Active Publication Date: 2020-08-14
DALIAN UNIV OF TECH
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[0003] Through the analysis of the research status, it can be found that there is no external thermal error compensation system based on the i5 CNC system
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[0023] In order to make the present invention more clear, the implementation manners of the present invention will be described below in conjunction with the accompanying drawings. The object of thermal error compensation is TC500R three-axis vertical drilling and tapping center. The machine tool configuration is i5 CNC system three-axis milling machine version; the maximum strokes of the X-axis, Y-axis and Z-axis are 500mm, 400mm and 300mm respectively, and their maximum feed speeds are 32m / min, 32m / min and 30m / min respectively; the spindle The highest speed is 18000r / min.
[0024] The hardware platform in the present invention includes TSic-based single bus temperature sensors 1-8, high-precision temperature collectors 9-16, multi-channel data repeater 17 and thermal error compensator 18. The connection and communication methods of each hardware are as follows:
[0025] (1) TSic-based single-bus temperature sensors 1 to 8 are respectively connected to high-precision temper...
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The invention provides an external thermal error compensation method for numerically-controlled machine tools based on an i5 iport protocol, and belongs to the field of thermal error compensation fornumerically-controlled machine tools. The external thermal error compensation method comprises two parts: a hardware platform and thermal error compensation software, wherein the hardware platform comprises a single bus temperature sensor based on TSic, a high precision temperature collector, a multi-channel data repeater and a thermal error compensator; and the thermal error compensation softwareis developed based on the Matlab scripting language and runs in the thermal error compensator to realize the functions of automatic modeling based on a thermal deformation mechanism, online real-timeprediction of model-based thermal error, communication with an i5 numerically-controlled system, and the like. The external thermal error compensation method has the advantages that the thermal errorcompensation system performs data reading and writing based on the i5 iport protocol and the i5 numerically-controlled system, realizes thermal error compensation on the machine tool configured withthe i5 system, fills the blank in the field, and improves the processing accuracy and accuracy stability of the machine tool configured with the i5 numerically-control system.
Description
technical field [0001] The invention belongs to the technical field of thermal error compensation of numerical control machine tools, in particular to an external thermal error compensation method of numerical control machine tools based on the i5 iport protocol. Background technique [0002] At present, the research on thermal error compensation of machine tools has become the key research direction of relevant scholars. In the patent "a thermal error compensation device and method for CNC machine tools", application number: CN201510800430.6, the computer is used to calculate the error prediction value based on the established thermal error model, and the error compensation device based on piezoelectric ceramics is based on the error prediction value. Compensate motion to achieve compensation for thermal errors. In the patent "Real-time Compensation System for CNC Machine Tool Errors Based on Virtual Instruments", application number: CN201110085904.5, the error compensatio...
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IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/35408
Inventor 刘阔王永青刘海波李特吴嘉锟刘海宁
Owner DALIAN UNIV OF TECH