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Numerical control device and driving control method

A numerical control device, axis direction technology, applied in the direction of digital control, automatic control device, feeding device, etc., can solve the problems of complex drive control, etc., and achieve the effect of simple drive control and vibration suppression

Active Publication Date: 2014-10-01
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is conceivable to set the time constants of the acceleration and deceleration filters to different values ​​for each axis, but the difference in time constants will lead to setting different values ​​for the acceleration and deceleration performance of each axis. In the case of , it is necessary to correct the acceleration and deceleration performance, and there is a problem that the drive control becomes complicated

Method used

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  • Numerical control device and driving control method
  • Numerical control device and driving control method
  • Numerical control device and driving control method

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Embodiment Construction

[0025] Hereinafter, a numerical control device according to an embodiment of the present invention will be described with reference to the drawings. In the following description, up, down, left, right, front, back, and so forth indicated by arrows in the figure are used. The left-right direction, front-back direction, and up-down direction of the machine tool 1 are the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively. An operator operates the machine tool 1 from the front, and attaches and detaches workpieces. refer to figure 1 and figure 2 , the structure of the machine tool 1 will be described. The machine tool 1 includes a base 11, a column 12, a spindle head 13, a tool changing device 14, a table 15, a control unit 16, and the like. The base 11 is fixed on the ground. The upright post 12 is erected against the upper rear of the base 11 . The spindle head 13 is movable up and down in the Z-axis direction (up-down direction) along the fro...

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Abstract

The invention provides a numerical control device and a driving control method. The numerical control device performs controlling in an X-axis direction and a Y-axis direction which are crossed and utilizes motors respectively arranged on each axis for driving a worktable that supports a workpiece. A first wave filter sets a derivative of a frequency of a vibration generated in the X-axis direction to a time constant (T1). A second wave filter sets the derivative of a frequency of a vibration generated in the Y-axis direction to a time constant (T2). The numerical control device smoothes the speed instruction signal of a motor through the first wave filter and the second wave filter, thereby suppressing vibration of the worktable in the X-axis direction and the Y-axis direction.

Description

technical field [0001] The present invention relates to a numerical control device and a drive control method for controlling the drive of a table supporting a workpiece in two intersecting two-axis directions. Background technique [0002] Machine tools can perform various processing. A machine tool mounts a tool taken out of a magazine on a spindle to perform targeted processing on a workpiece, and the magazine stores and transports the tool. The table supporting the workpiece can be moved in, for example, two-axis directions in a horizontal plane by means of a drive mechanism. The drive mechanism that drives the table has a servo motor. The numerical control device moves the table in each axis direction by controlling the drive of the servo motor. Japanese Laid-Open Patent Publication No. 0188541 of 2004 discloses a numerical control device that includes a measuring device that measures the motion of a machine tool, and adjusts parameters related to the drive of each a...

Claims

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Application Information

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IPC IPC(8): B23Q15/00
CPCG05B19/19
Inventor 阿久泽智规
Owner BROTHER KOGYO KK
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