Automatic detection and early warning system for numerical control machine tool and operation method of automatic detection and early warning system

A technology of CNC machine tools and early warning systems, applied in general control systems, control/adjustment systems, program control, etc., can solve problems such as no early warning, no early warning, tool prediction, etc., so as to facilitate the detection of danger, save time, and improve The effect of precision and quality

Active Publication Date: 2018-08-10
WEIFANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above two patents only detect the load torque, and do not predict the position of the current tool and the position of the tool in the next program. The main purpose is to read the next program, and judge the route and position of the tool in advance, and cannot give early warning , only real-time monitoring, no early warning function

Method used

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  • Automatic detection and early warning system for numerical control machine tool and operation method of automatic detection and early warning system
  • Automatic detection and early warning system for numerical control machine tool and operation method of automatic detection and early warning system
  • Automatic detection and early warning system for numerical control machine tool and operation method of automatic detection and early warning system

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Experimental program
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Effect test

Embodiment 1

[0061] An automatic detection and early warning system for CNC machine tools, such as figure 1 As shown, it includes an input unit, a transmission unit, an analysis and calculation unit, a coordinate detection unit, a coordinate comparison unit, and an alarm unit;

[0062] The input unit is respectively connected to the transmission unit and the analysis calculation unit, the transmission unit is connected to the coordinate detection unit, the analysis calculation unit and the coordinate detection unit are connected to the coordinate comparison unit, and the coordinate comparison unit is connected to the alarm unit;

[0063] The input unit is used to read the processing program into the machine tool and convert it into a readable analog signal;

[0064] The analysis and calculation unit is used to read the processing program and calculate the theoretical coordinate value;

[0065] The transmission unit is used to drive the mechanical parts of the machine tool to move the read...

Embodiment 2

[0070] According to a kind of CNC machine tool automatic detection and early warning system described in embodiment 1, its difference is that,

[0071] The input unit is USB or operation panel;

[0072] The analysis and calculation unit includes a PLC host computer and a single-chip microcomputer; the processing program is input to the single-chip integrated board, and all of them are converted into information codes acceptable to the numerical control device through the CPU, and then transmitted to the PLC host computer. The PLC host computer obtains theoretical coordinate values ​​through information exchange processing ;

[0073] The transmission unit includes a servo motor, a lead screw, and a servo driver; the servo driver sends a readable analog signal (command) to the servo motor, and the servo motor is connected to the lead screw through a coupling, and receives the command from the servo driver to realize rotation and drive the wire Lever operation; the servo control...

Embodiment 3

[0080] A kind of CNC machine tool automatic detection and early warning system according to embodiment 1 or 2, its difference is that,

[0081] The CNC machine tool automatic detection and early warning system also includes a torque detection unit, a torque comparison unit, and a standard torque memory;

[0082] The transmission unit is connected to the torque detection unit, the torque detection unit and the standard torque memory are connected to the torque comparison unit, and the torque comparison unit is connected to the alarm unit;

[0083] The torque detection unit is used to detect the torque and cutting force of each servo motor in real time;

[0084] The torque comparison unit is used to compare the real-time detected torque of the servo motor with the torque value of the servo motor stored in the standard torque memory. If the difference between the two is within the range of the threshold B, the CNC machine tool is working normally; otherwise, an alarm will be issu...

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Abstract

The invention relates to an automatic detection and early warning system for a numerical control machine tool and the operation method of the automatic detection and early warning system. The automatic detection and early warning system comprises an input unit, a transmission unit, an analysis and calculation unit, a coordinate detection unit, a coordinate comparison unit and an alarm unit. The input unit is used for reading a processing program into a machine tool, andconverting the processing program into a readable analog signal. The analysis and calculation unit is used for reading the processing program, andcalculating a theoretical coordinate value. The transmission unit is used for driving the mechanical part of the machine tool to move through the readable analog signal. The coordinate detection unit is used for detecting the actual coordinate value of the mechanical part of the machine tool in real time. The coordinate comparison unit is used for comparing the theoretical coordinate value with the actual coordinate value. If the difference value between the theoretical coordinate value and the actual coordinate valueis within the range of a threshold value A, the numericalcontrol machine tool works normally. Otherwise, the alarm unit is started to give an alarm. According to the invention, the program data can be analyzed in advance when the system works normally. Theon-line real-time detection is carried out, and the machining state is monitored in real time. The tool damage of the numerical control machine tool can be effectively prevented, and the operation safety and the operation reliability are improved.

Description

technical field [0001] The invention relates to an automatic detection and early warning system of a numerical control machine tool and an operation method thereof, belonging to the technical field of intelligent control. Background technique [0002] At present, with the continuous improvement of numerical control technology, the proportion of numerical control machine tools in the processing and manufacturing industry is getting higher and higher. Compared with traditional machine tools, numerical control machine tools have a high degree of automation, high precision, high efficiency, high flexibility, and can be applied to It has the advantages of processing various complex workpieces and reducing the labor intensity of workers. Therefore, CNC machine tools are indispensable equipment for improving my country's manufacturing capacity. [0003] The working principle of the CNC machine tool is: the programmer analyzes the drawings, compiles the CNC machining code and input...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/401
CPCG05B19/401G05B2219/34242
Inventor 刘贞德刘敦
Owner WEIFANG UNIVERSITY
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