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Laminating material online variable parameter hole making method based on motor current

A technology of laminated material and motor current, applied in the direction of manufacturing tools, boring/drilling, drilling/drilling equipment, etc., can solve problems such as increasing equipment costs

Active Publication Date: 2018-11-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method needs to modify the existing equipment and add ultrasonic sensors, which increases the equipment cost

Method used

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  • Laminating material online variable parameter hole making method based on motor current
  • Laminating material online variable parameter hole making method based on motor current
  • Laminating material online variable parameter hole making method based on motor current

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Embodiment Construction

[0053] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described The embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of this application.

[0054] Figure 1 to Figure 4 Shown is a schematic diagram of the structure of the present invention:

[0055] The reference signs are: feeding motor 1, driver 2, electric spindle 3, controller 4, ball screw 5, PLC terminal 6, and laminated material 7.

[0056] An online variable parameter hole making method for laminated materials based on motor current. The device ...

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Abstract

The invention provides a laminating material online variable parameter hole making method based on motor current. A device used in the method comprises a feeding motor, a motorized spindle, a driver and a controller. The real-time current of the feeding motor is read from the driver, the current data are uploaded to the controller, then, Kalman filtering is used for conducting filtering on extracted current, outside interference and equipment inner noise influencing current signals in the collection and transmission process are filtered out, the current value obtained after filtering is subjected to disperse integration treatment, the comparison value of the integration difference and the threshold value serves as parameters, the stage where current hole making is located is judged in realtime, and finally the speed of the feeding motor and the rotation speed of the motorized spindle are controlled according to the obtained drilling stage. According to the laminating material online variable parameter hole making method, the situation that the material thickness size is measured in advance for determining the technology parameter switching point is not needed, the machining process can be monitored online, the current machining state can be judged in real time, and optimal technology parameters of various layers of materials are used for hole making.

Description

Technical field [0001] The invention relates to the field of aerospace automatic assembly hole making, in particular to an online variable parameter hole making method of laminated materials based on motor current. Background technique [0002] Laminated material is a combination of two or more materials with different physical and chemical properties. Because it not only retains the original excellent properties of each layer material, but also obtains new comprehensive properties after lamination, so it is in the aerospace field It is widely used. However, the use of new materials must be accompanied by new manufacturing technologies to give full play to the excellent properties of their materials. Hole making is an important processing link in the application of laminated materials in the aerospace field. Due to the diverse composition of laminated materials, each layer The material drilling processing parameters vary greatly, which brings great difficulties to the hole proce...

Claims

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Application Information

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IPC IPC(8): B23B41/00B23Q17/00B23Q17/20
CPCB23B41/00B23Q17/00B23Q17/20
Inventor 张霖薛其伟韦学文王品章郑义田威廖文和
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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