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Numeric control device

A technology of numerical control device and rotating shaft, applied in the direction of automatic control device, feeding device, program control, etc., can solve problems such as parallelism error, translation error, attitude error, etc., achieve high-precision processing and realize the effect of processing

Inactive Publication Date: 2012-11-14
MITSUBISHI ELECTRIC CORP
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Problems solved by technology

Similarly, for example, due to the influence of the assembly error of the tilting rotary table 3, the A-axis rotation center line that should be parallel to the X-axis and the C-axis rotation center line that should be parallel to the Z-axis have parallelism errors. In the presence of this error, there will be translation errors and attitude errors caused by the rotation axis motion

Method used

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  • Numeric control device
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Embodiment 1

[0040] Next, use Figure 1 to Figure 4 Example 1 of the present invention will be described. also, figure 1 It is a configuration diagram showing a portion of the numerical control device in the first embodiment that calculates the translation axis position correction amount and the rotation axis angle correction amount. In addition, the hardware structure of the numerical control device in this embodiment 1 is a general structure composed of a CPU, a memory, etc. In addition, the structural elements other than the storage parts 4 and 5 (memory) (translational axis-related position correction amount calculation unit 6, rotation The axis-related position correction amount calculation unit 7 , the rotation axis angle correction amount calculation unit 8 , the position superposition correction amount calculation unit 9 , etc.) are mainly composed of software.

[0041] exist figure 1 In the translation axis-related translation error and translation axis-related attitude error...

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Abstract

Disclosed is a numeric control device for controlling a machine tool having a translational axis and a rotational axis in order to achieve high-precision processing by correcting effects of translation error and attitude error dependent on movement of the translational axis and translation error and attitude error dependent on movement of the rotational axis; said numeric control device comprising a translational axis dependent position correction amount calculation means (6) for calculating a position correction amount of a translational axis from the translation error and attitude error dependent on movement of the translational axis; a rotational axis dependent position correction amount calculation means (7) for calculating a position correction amount of a translational axis from the translation error and attitude error dependent on movement of the rotational axis; a rotational axis angle correction amount calculation means (8) for calculating an angle correction amount of a rotational axis from a portion of the attitude error dependent on movement of the translational axis and a portion of the attitude error dependent on movement of the rotational axis; and a position-added-correction-amount calculation means (9) for calculating a position correction amount of a translational axis corresponding to the rotational axis correction amount.

Description

technical field [0001] The present invention relates to a numerical control device for controlling a working machine having a translation axis and a rotation axis, and in particular, relates to a method for correcting the influence of an error of the translation axis and the rotation axis so that high-precision machining can be performed of numerical control devices. Background technique [0002] First, use Figure 5 , to account for the attitude error due to the motion of the translation axis. For the table 1 that is moved in the X-axis direction by constraining the movement direction of the guide part 2, it is known that on the basis of the translation error in the X-axis direction, the translation error in the Y-axis direction, and the translation error in the Z-axis direction, there are Attitude error for axis rotation (yaw), attitude error for rotation around the Y axis (pitch), and attitude error for rotation around the X axis (roll). The translation error in each di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404B23Q15/24B23Q15/26
CPCG05B2219/49344G05B19/404G05B2219/50297G05B2219/50152
Inventor 佐藤隆太小野俊郎中村直树藤野大助
Owner MITSUBISHI ELECTRIC CORP
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