Numerical control machine tool electric spindle temperature compensation method and device

A technology of CNC machine tools and temperature compensation, which is applied to metal processing machinery parts, other manufacturing equipment/tools, measuring/indicating equipment, etc. It can solve the problems of workpiece size error, reduce the machining accuracy of machine tool spindle, etc., and achieve the effect of eliminating size error.

Inactive Publication Date: 2019-02-19
DONGGUAN HAOSHENG IND CO LTD
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Problems solved by technology

[0004] When the spindle of the CNC machine tool is rotated at high speed to drive the tool to process the workpiece, the temperature of the spindle is high due to the high-speed rotation of the spindle, and the spindle will be affected by thermal expansion and contraction, resulting in elongation (0.04mm-0.10 mm), which reduces the machining accuracy of the machine tool spindle, resulting in an error in the size of the processed workpiece

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  • Numerical control machine tool electric spindle temperature compensation method and device
  • Numerical control machine tool electric spindle temperature compensation method and device

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Embodiment Construction

[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention.

[0043] It should be noted that: in the drawings, the same or similar symbols represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, but not all of the embodiments. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] In this document, "first", "second" and so on are only used to d...

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Abstract

The invention provides a numerical control machine tool electric spindle temperature compensation method and device. The method comprises the following steps that the axis temperature of an electric spindle of a numerical control machine tool is acquired in real time, the change degree of the temperature is obtained based on the axis temperature of the electric spindle, whether the change degree of the temperature exceeds a corresponding preset threshold value or not is judged, moreover, when the change degree of the temperature exceeds the corresponding preset threshold value, the telescopicamount of the electric spindle is obtained based on the axis temperature of the electric spindle, and coordinates of the electric spindle are compensated based on the telescopic amount of the electricspindle. According to the method and the device, the expansion amount generated by the electric spindle and caused by the rise of the temperature due to the high-speed rotation in the working processof the electric spindle can be compensated or eliminated, so that the size error generated in the process of machining a workpiece by using a cutter at the end of the electric spindle due to the temperature change of the electric spindle is eliminated.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tools, in particular to a temperature compensation method and device for an electric spindle of a numerical control machine tool. Background technique [0002] A CNC machine tool is an automated machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the numerical control device through the information carrier. After calculation and processing, various control signals are sent by the numerical control device to control the movement of the machine tool, and the parts are automatically processed according to the shape and size required by the drawing. [0003] The electric spindle is a new technology that integrates the machine tool spindle and the spindle motor in the field of CNC machine tools. Among them, the machine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q23/00B23Q17/00
CPCB23Q23/00B23Q17/00
Inventor 杨光喻春洪吴淑就
Owner DONGGUAN HAOSHENG IND CO LTD
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