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Numerical control device

A numerical control device, the technology of recommended values, applied in the direction of digital control, program control, electrical program control, etc.

Active Publication Date: 2020-05-08
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, these phenomena can be solved by improving the processing ability of the numerical controller to execute pre-reading or execute the machining program, but when the command speed is increased by further miniaturizing the program or improving the machine tool, it still occurs. same question

Method used

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Embodiment Construction

[0037] Below, by referring to Figure 1 to Figure 8 Embodiments of the present invention will be described.

[0038] [1. Structure of the invention]

[0039] figure 1 A configuration of a control system 10 including a numerical controller 100 according to the present invention and a machine tool 200 controlled by the numerical controller 100 is shown.

[0040] The numerical control device 100 is a device that outputs operation commands to the machine tool 200 and performs numerical control on the machine tool 200 by having functions described later. Details of the configuration and functions of the numerical controller 100 will be described later.

[0041] The machine tool 200 is an apparatus for performing predetermined machining such as cutting. The machine tool 200 includes a motor driven to machine a workpiece, a main shaft attached to the motor, a feed shaft, jigs, tools, and the like corresponding to these respective shafts. Further, the machine tool 200 performs p...

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Abstract

A numerical control device is provided, which can detect the position where the number of pre read blocks used to determine acceleration and deceleration actions is insufficient in the processing program, so as to stabilize the feed speed, cutting speed, etc. The numerical control device (100) is provided with a program execution unit (111), which executes a processing program, a program pre reading unit (112), which reads a processing program in parallel with the execution of a processing program, and a theoretical value calculation unit (113), which calculates a processing program accordingto the length of a tiny straight line forming a processing path of the machine tool (200) and the feed speed of the machine tool. During the execution of the processing program, the measured value calculation unit (114) calculates the measured value of the pre reading time of the program and the processing time of the processing program for each block; and the abnormal occurrence block detection unit (115), the difference between the accumulated theoretical value and the measured value exceeds the specified value at the time point The block at is the exception block.

Description

technical field [0001] The invention relates to a numerical control device. Background technique [0002] In the recent manufacturing industry, the miniaturization and precision of IT parts and the like have been progressing, and interest in high-speed and high-precision machining has been increasing. In order to achieve higher-quality machining, there is an increasing tendency to create machining programs for workpieces under high-speed, high-precision machining with an allowable error (tolerance) of an order of magnitude smaller. [0003] With regard to processing programs with small tolerances that were previously unrealistic from the viewpoint of PC processing capability, due to the improvement of PC performance and CAM (Computer Aided Manufacturing) performance in recent years, it is possible to sufficiently create such processing programs with small tolerances, And it is believed that its momentum will accelerate in the future. [0004] In addition, in addition to to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/414
CPCG05B19/4142G05B2219/34013G05B19/4155G05B2219/35293G05B2219/43009G05B2219/35386G05B19/416G05B2219/34465G05B2219/42173
Inventor 丹后力上西大辅
Owner FANUC LTD
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