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Machine Tool Control Devices

A control device and machine tool technology, applied in automatic control devices, computer control, general control systems, etc., can solve problems such as corrections that cannot be easily thermally displaced, and achieve the effects of shortening machining time, improving machining accuracy, and high-precision machining

Inactive Publication Date: 2016-03-02
CITIZEN WATCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the control device of the above-mentioned machine tool, there is a problem that it is not possible to easily correct the thermal displacement due to the need to measure or calculate the saturation thermal displacement in advance.

Method used

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Embodiment Construction

[0027] Next, a machine tool control device 100 according to an embodiment of the present invention will be described. Such as figure 1 As shown, the machine tool control device 100 according to the embodiment of the present invention includes a sequential analysis control unit 110, a prior analysis control unit 120, a correction amount calculation unit 130, a change amount calculation unit 140, and a mode switching unit 150, and performs control. The machine tool M is, for example, a machine tool for continuously processing a plurality of workpieces, such as an automatic lathe for processing a bar, and includes a spindle M1, a spindle Z-axis motor M2, a Z-axis ball screw M3, a processing tool M4, Tool table M5, X-axis ball screw M6 and tool table X-axis motor M7.

[0028] The machine tool control device 100 controls the rotation of the spindle Z-axis motor M2 according to the machining program stored in advance, moves the spindle M1 in the Z-axis direction along the Z-axis ...

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Abstract

The present invention provides a control device for a machine tool that reduces the processing load of calculating the amount of thermal displacement generated in a machine tool, avoids a decrease in processing speed, and improves the machining accuracy of a workpiece. The machine tool control device (100) has a sequential analysis control unit (100), a prior analysis control unit (120), a correction value calculation unit (130), a variation calculation unit (140), and a mode switching unit (150). Execute the machining program corrected according to the amount of thermal displacement generated in the components of the machine tool (M) by the control device (100), and operate the machine tool (M) to realize high-precision machining of the workpiece (W) .

Description

technical field [0001] The present invention relates to a machine tool control device for controlling machine tools such as NC automatic lathe devices. Background technique [0002] Conventionally, as a correction amount sequentially calculated when executing a machining program, for example, a correction amount for a thermal displacement amount of a machine tool is known, and there is a control device for a machine tool as follows (for example, refer to Patent Document 1): Calculate the thermal displacement before the thermal displacement reaches the saturated thermal displacement, use the successive thermal displacement as the correction amount before the thermal displacement reaches the saturated thermal displacement, and use it as the correction amount before the thermal displacement reaches the saturation After the thermal displacement amount, the saturation thermal displacement amount is used as a correction amount. [0003] In addition, there is a numerical controlle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q15/18G05B19/404
CPCG05B19/404G05B2219/49219G05B2219/36056B23Q15/18G05B19/4155G05B19/18
Inventor 小竹恭太
Owner CITIZEN WATCH CO LTD