Machine tool motion compensation system based on temperature detection at selective times
A technology of motion compensation and time division, which is applied in the general control system, control/regulation system, computer control, etc., can solve the problems affecting the accuracy of the motion axis, the machining accuracy of the workpiece, and the positioning accuracy of the machine tool, so as to improve the machining accuracy and Processing effect, guaranteed effectiveness, effect of high processing accuracy
Inactive Publication Date: 2017-09-15
ANHUI PROVINCE JIEYONGDA INTELLIGENT MACHINE
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Problems solved by technology
Due to the heat generated by the movement friction of metal materials inside the machine tool, the change of ambient temperature and other factors will generate additional temperature errors on the position of the movement axis of the machine tool, which will affect the accuracy of the movement axis, thereby affecting the positioning accuracy of the machine tool and the machining accuracy of the workpiece.
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[0021] like figure 1 as shown, figure 1 A machine tool motion compensation system based on time-divided temperature detection proposed by the present invention.
[0022] refer to figure 1 , the machine tool motion compensation system based on time-divided temperature detection proposed by the present invention includes:
[0023] A model building module, used to set up a temperature difference deformation model;
[0024] The temperature acquisition module is used for t after the machine tool starts to run 1 moment and t 2 Collect the temperature T of the target motion axis of the machine tool at all times 1 and T 2 ; among them, t 2 >t 1 ;
[0025] The temperature acquisition module is specifically used for:
[0026] Using multiple temperature acquisition sub-modules respectively after the machine tool starts running t 1 moment and t 2 Collect the temperature T of the target motion axis of the machine tool at all times 1 and T 2 , setting up multiple temperature a...
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The invention discloses a machine tool motion compensation system based on temperature detection at selective times. The machine tool motion compensation system includes: a model establishing module which is intended for establishing a temperature difference deformation model; a temperature acquiring module which is intended for separately acquiring temperature T1 and T2 of a machine tool object axis of motion at t1 time and t2 time after the machine tool begins to operate; an error compensation module which is intended for computing a temperature difference T and based on the temperature difference deformation model, computing current deformation amount L, and determining whether the current deformation amount L is within an error range, and based on the result of the determination, performing error compensation on the object axis of motion. According to the invention, the machine tool motion compensation system, by analyzing the temperature changes of the machine tool at two times, divides the errors of the machine tool axis of motion, thus effectively preventing the result of error compensation from being compensated by the deformation amount dividing errors which are caused by inaccuracy in direct temperature acquisition, ensures the effectiveness of error compensation of the machine tool on the basis of improved result from analyzing temperature analysis, and increases machining precision and effects of the machine tool.
Description
technical field [0001] The invention relates to the technical field of machine tool temperature detection, in particular to a machine tool motion compensation system based on time-divided temperature detection. Background technique [0002] A machine tool refers to a machine that manufactures a machine, also known as a machine tool or a machine tool. In addition to cutting, the machine tool is also used for forging, casting, welding, stamping, extrusion, etc., but the requirements for higher precision and finer surface roughness The parts generally need to be final processed on the machine tool, so there are high requirements for the machining accuracy and stable processing quality of the machine tool. Due to the heat generated by the movement friction of metal materials inside the machine tool, the change of ambient temperature and other factors will generate additional temperature errors on the position of the movement axis of the machine tool, which will affect the accura...
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IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/35408
Inventor 毛益飞杨纪村葛峰周二荣翟祥文王树兴姜峰
Owner ANHUI PROVINCE JIEYONGDA INTELLIGENT MACHINE