On-line thickness measurement system for large aeronautical thin-walled part and thickness measurement method of system

A technology for thin-walled parts and thickness measurement, which is applied to metal processing machinery parts, measuring/indicating equipment, automatic control devices, etc., can solve the problems of wasting manpower and lack of guidance for processing, and achieve saving labor costs, improving the pass rate, The effect of improving accuracy

Inactive Publication Date: 2014-11-12
SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD +1
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Problems solved by technology

At present, the method of measuring large thin-walled aviation parts usually adopts a hand-held thickness gauge. The measurement posit...

Method used

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  • On-line thickness measurement system for large aeronautical thin-walled part and thickness measurement method of system
  • On-line thickness measurement system for large aeronautical thin-walled part and thickness measurement method of system

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Embodiment Construction

[0030] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0031] Ultrasonic wave is a kind of mechanical longitudinal wave, which is the fluctuation generated in elastic medium due to mechanical vibration. When ultrasonic wave propagates in the same homogeneous medium, its wave velocity is a constant. When ultrasonic waves propagate from one medium to another, they will be reflected at the interface between the two mediums. Therefore, the interval time between the ultrasonic pulse sent from the surface of the measured material and the reflected pulse received from the bottom surface is proportional to the thickness of the material, and this time is converted into a thickness value representation, which is the thickness of the measured material.

[0032] Such as figure 1 As shown, the online thickness measurement system for aviation large thin...

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Abstract

The invention discloses an on-line thickness measurement system for a large aeronautical thin-walled part and a thickness measurement method of the system. The on-line thickness measurement system comprises a positioning sensor and the like, wherein the positioning sensor, an ultrasonic sensor, an ultrasonic thickness measurement data processor and a knife handle constitute an ultrasonic thickness measurement probe; a numerical control system is connected with a five-axis numerical control machine tool; the knife handle is fixed on a spindle of the numerical control system; the positioning sensor is connected with the numerical control system through a first data port; the ultrasonic thickness measurement data processor is connected with the numerical control system through a second data port; the positioning sensor is used for positioning the ultrasonic thickness measurement probe and outputting a control signal to the numerical control system; the ultrasonic sensor is used for transmitting and receiving an ultrasonic signal; the ultrasonic thickness measurement data processor is used for controlling the ultrasonic sensor, controlling the thickness measurement process and processing thickness data; and the knife handle is used for fixing the positioning sensor and the ultrasonic sensor. According to the on-line thickness measurement system for the large aeronautical thin-walled part and the thickness measurement method of the system, the measurement is performed automatically, the accuracy is improved, and labor cost is saved.

Description

technical field [0001] The invention relates to a thickness measuring system and a thickness measuring method thereof, in particular to an online thickness measuring system and a thickness measuring method of large aviation thin-walled parts. Background technique [0002] In the process of machining large thin-walled aviation parts, due to various reasons such as tool wear, workpiece deflection, and workpiece deviation, overcutting or undercutting often occurs, resulting in waste products. At present, the method of measuring large thin-walled parts of aviation usually uses a hand-held thickness gauge. The measurement position has a strong uncertainty and has no guiding effect on subsequent processing. Manual measurement is a waste of manpower to a certain extent. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an online thickness measurement system and thickness measurement method for large aviation thin-walled ...

Claims

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Application Information

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IPC IPC(8): B23Q17/20B23Q15/12
CPCB23Q17/20B23Q15/12
Inventor 毕庆贞
Owner SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD
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