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Numerical controller

A numerical control device and data technology, applied in the direction of program control, adaptive control, computer control, etc., can solve the problem of not being disclosed

Active Publication Date: 2018-08-21
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the above-mentioned Japanese Patent Application Laid-Open No. 10-080802 does not disclose the content of adjusting the pushing force of the center seat according to the shape change of the workpiece being processed, and furthermore, it does not disclose the following content: Adjust the power consumption of the pressure, in other words, the point of view of suppressing the waste of the top seat push force to adjust the top seat push force

Method used

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  • Numerical controller
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Embodiment approach

[0067] Figure 8 It is a diagram showing the machine learning process of the magnitude adjustment of the center seat pressing force in the numerical controller 1 according to the embodiment of the present invention. In addition, in Figure 8 Only the configuration necessary for the description of the machine learning process in the numerical controller 1 of the present embodiment is shown in .

[0068] The numerical controller 1 has a center seat pressing force calculation unit 10 , a motion evaluation unit 11 , and a machine learner 20 . Machine learner 20 inputs processing preconditions as state s for determining the environment () t ), and then input the pushing force of the center seat as state information. In addition, the machine learning device 20 outputs an adjustment action (action a described in t ).

[0069] Data input to the numerical controller 1 as prerequisites will be described.

[0070] The numerical controller 1 acquires the spindle speed using a sensor in...

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Abstract

The invention provides a numerical controller. The numerical controller performs machine learning to calculate tailstock pressing force to stabilize behavior of a workpiece during lathe machining andacquires, as state information, current tailstock pressing force. Then, the numerical controller acquires, as determination data, current vibration or displacement of the workpiece, or power consumption by tailstock pressing force, updates a value function based on the acquired determination data, and outputs an adjustment value of the state information based on the updated value function.

Description

technical field [0001] The invention relates to a numerical control device, in particular to a numerical control device capable of automatically calculating the optimum pushing force of a top seat. Background technique [0002] When performing lathe processing of a workpiece (particularly a long material), there is a method of using a center seat as a method for improving processing accuracy. figure 1 It is a schematic diagram showing the difference in behavior depending on the presence or absence of the center seat 4 when the workpiece 3 rotating together with the spindle 2 is lathe-machined. [0003] known as figure 1 Compared with the case of lathe machining of the workpiece 3 without the center seat as in (I) in figure 1 In the case of setting the center seat 4 so that the pressing force in the direction of the rotation axis acts on the workpiece 3 as in (II) above, the vibration amplitude of the workpiece 3 becomes small. [0004] Among recent NC lathes (lathes contr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/4097
CPCG05B19/4097G05B2219/32346G05B2219/32334G05B2219/37232G05B19/404G05B2219/33034G05B2219/36204G05B2219/49356G05B13/0265
Inventor 渡边俊大
Owner FANUC LTD