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Control device, machine tool, calculation method, and program

A technology of control device and machine tool, applied in the direction of automatic control device, program control, feeding device, etc., can solve the problem that it is not easy to correct thermal displacement

Active Publication Date: 2022-04-12
YAMAZAKI MAZAK KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are various heat sources that cause thermal displacement, and it is not easy to accurately correct thermal displacement

Method used

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  • Control device, machine tool, calculation method, and program
  • Control device, machine tool, calculation method, and program
  • Control device, machine tool, calculation method, and program

Examples

Experimental program
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Embodiment Construction

[0029] Embodiments of the present invention will be described below with reference to the drawings.

[0030]

[0031] figure 1 The main structure of the machine tool 1 of this embodiment is shown. The machine tool of the present embodiment includes a workpiece clamping portion for clamping a workpiece and a tool clamping portion for clamping a tool, and by rotating at least one of the workpiece and the tool, orienting at least one of the workpiece and the tool in a predetermined direction movement, whereby the workpiece is machined with the tool.

[0032] In addition, the components constituting the machine tool are mounted with a plurality of temperature sensors.

[0033] Specifically, the machine tool 1 has: a bed 3; a first workpiece headstock 5 fixed to the bed 3; a first workpiece spindle 7 arranged on the first workpiece headstock 5 in a manner to be rotatable in a C-axis direction; The base 18 is a moving part arranged on the bed 3 to move in the direction of the Y...

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PUM

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Abstract

The invention relates to a control device, a machine tool, a calculation method, and a program. The purpose of the present invention is to provide a device for automatically performing thermal displacement correction in a machine tool. Therefore, the present invention is provided with: a machining data collection unit (67) that collects machining data including the date and time at which at least one machining site set as a learning target in a workpiece is machined by a machine tool; a temperature collection unit (29) that collects temperature data of a plurality of portions of the machine tool at predetermined time intervals; a dimension data input unit (75) for inputting dimension measurement data obtained by measuring the post-machining dimension of the at least one machining site; a learning data generation unit (85) that generates learning data including the processing data and the size measurement data; and a machine learning execution unit (95) that executes machine learning on the basis of the temperature data and the learning data, and calculates a thermal displacement correction factor that corrects displacement caused by a temperature change in the machine tool.

Description

technical field [0001] The present invention relates to a control device, a machine tool, a calculation method, and a program. Background technique [0002] Each component of the machine tool thermally expands due to the heat generated by the operation of the machine tool and the heat around the machine tool. It is known that due to such thermal expansion, the positional relationship between the cutting edge of the tool and the workpiece is disturbed, deteriorating the machining accuracy of the machine tool. The disturbance of the accuracy of the positional relationship between the cutting edge of the tool and the workpiece due to such thermal expansion is called thermal displacement. [0003] Therefore, there is a numerical control device (hereinafter referred to as "control device") for controlling a machine tool that has a function of correcting thermal displacement. In this case, the thermal displacement correction function uses a method of installing a temperature sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404B23Q15/18G05B19/4155
CPCG05B19/404B23Q15/18G05B2219/37211G05B19/4083G05B2219/49206G05B2219/49219G05B13/0265G05B2219/33034G06N20/00B23Q15/12
Inventor 奥田敏人吉田嶺井关晃铃木康彦
Owner YAMAZAKI MAZAK KK
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