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Numerical control device and control method

A technology of numerical control device and control unit, which is applied in the direction of program control, computer control, general control system, etc., and can solve problems such as lengthening of processing cycle

Active Publication Date: 2018-03-20
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the numerical control device moves the axis of the next block after the fixing mechanism has completed the fixing or loosening of the rotary table, there is a problem that the machining cycle becomes longer

Method used

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

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Embodiment Construction

[0020] Embodiments of the present invention will be described below. In the following description, up and down, left and right, and front and rear indicated by arrows in the figure are used. The left and right, front and rear, and up and down of the machine tool 1 are the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively.

[0021] Numerical control device 50 of the present embodiment (refer to image 3 ) is controlled according to the NC program figure 1 The movement of machine tool 1 is shown. The machine tool 1 is a four-axis control machine tool including an X-axis, a Y-axis, a Z-axis, and an A-axis as an additional axis, and performs machining such as cutting on a workpiece by relative movement of a workpiece (not shown) and a tool 6 . The A-axis is a control axis whose rotation center is an axis parallel to the X-axis. The A axis of this embodiment is the rotary table 4 of the jig device 10 described later (refer to figure 2 ).

[0022]...

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PUM

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Abstract

The present invention provides a numerical value control device and a control method. A CPU of a numerical value control device analyzes an NC program by one block. When there is a clamp command or an unclamp command of a rotary table holding a workpiece in the analyzed program block, the CPU turns on a completion-waiting flag, stores an axis information of the clamp command or the unclamp command, and performs clamping or unclamping of the rotary table. Next, in the case that there is an axis movement command in the analyzed block, when the completion waiting flag is turned on, and the axis movement command is a positioning command, the CPU determines whether or not a command axis of the positioning command and the axis information coincide with each other. When the command axis and the axis information do not coincide with each other, the CPU performs axis movement without waiting for the completion of the clamping or unclamping, and thus, a cycle time required for workpiece processing can be effectively shortened.

Description

technical field [0001] The invention relates to a numerical control device and a control method. Background technique [0002] The numerical control device controls the machine tool and performs cutting of the workpiece. The machine tool includes a fixture device. The rotary table of the jig device holds the workpiece in a rotatable manner. The clamp device includes a securing mechanism. When cutting a workpiece, the numerical control device mechanically prevents the rotation of the rotary table by controlling the fixing mechanism and fixing the rotary table so that the workpiece does not move. Japanese Patent Publication 2012 No. 198734 discloses a numerical control device that releases the fixation mechanism to the rotary table from the fixing mechanism according to the release command in the numerical control program when the rotary table is rotated, and makes the rotary table rotate after the rotary table is released. table rotation. The numerical control device rot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4155
CPCG05B19/4155G05B2219/30
Inventor 原田大树
Owner BROTHER KOGYO KK