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The Design of Tool Wear Compensation System Based on Piezoelectric Actuator

Author: LinZiHe
Tutor: ZhaoPeiFeng
School: Dalian Jiaotong University
Course: Mechanical and Electronic Engineering
Keywords: Piezoelectric ceramics Tool wear compensation SCM Drive power
CLC: TG71
Type: Master's thesis
Year: 2010
Downloads: 30
Quote: 1
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Abstract


With the development of nano- micron technology , the field of machining accuracy requirements are increasing . Tool wear is an important factor to affect the machining accuracy . Precision and ultra-precision machining , the impact of such wear . To solve this problem , the need of the blade position micron or nanometer level adjustment tool wear compensation device , so as to achieve the purpose of improving processing accuracy . Piezoelectric ceramic as an ideal micro - nano- micro displacement components , small size , high resolution displacement , large carrying capacity , no noise , no heat , tool wear compensation system based on piezoelectric ceramic driver of tool wear micron -level compensation . The piezoelectric ceramic driver tool wear compensation system MCU as the core of the design . By experimental analysis to select of Piezoelectric the voltage - displacement relationship , effective method for tool wear compensation system to eliminate piezoelectric ceramic non - linearity , hysteresis and creep impact . The design and verification of tool wear compensation device microcontroller power components , and establish the mathematical model of the compensation system based on the method of the average curve model . Voltage control method , designed to drive power series voltage negative feedback principle - based piezoelectric ceramics , as well as the discharge circuit of the DC power supply circuit and piezoelectric ceramics , high linearity and low power ripple is verified by simulation . Clarify the principle applicable to the actual production tool wear compensation control system to select controller microcontroller interface device based on the selected program and analysis of technical indicators and function of each part of the expansion unit , reasonable argumentation selected and designed the corresponding interface circuit . Compensation system based on the selected programs and hardware software processes discussed functional modular software implementations , and gives a few typical module subroutine . Finally, the summary of the full text , and pointed out the direction for further research to improve the tool wear compensation system based on piezoelectric ceramic driver .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Cutting tools, abrasives,abrasive tools,fixtures,molds and hand tools > Tool
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