發(fā)布時(shí)間：2018-06-14 10:03

  本文選題：金剛石串珠繩 + 鋸切��； 參考：《華僑大學(xué)》2011年碩士論文

【摘要】：自從金剛石串珠繩鋸發(fā)明以來,金剛石串珠繩鋸技術(shù)因其具有高效、環(huán)保等特點(diǎn),已在多個(gè)領(lǐng)域得到了廣泛地應(yīng)用,并顯現(xiàn)出獨(dú)特的優(yōu)勢(shì)。在提倡綠色環(huán)保、低碳的今天,金剛石串珠繩鋸的應(yīng)用顯得尤為突出。金剛石串珠繩(簡(jiǎn)稱串珠繩)作為柔性加工工具,在切削過程中必然會(huì)引起振動(dòng)。串珠繩的振動(dòng)直接影響著鋸切過程,劇烈的振動(dòng)會(huì)對(duì)加工過程造成影響。因此,研究串珠繩在鋸切過程中的振動(dòng),對(duì)深入了解串珠繩鋸切機(jī)理有重要的幫助。 本課題利用6個(gè)激光位移傳感器同步跟蹤采集了串珠繩的位移振動(dòng)信號(hào),用LabVIEW軟件對(duì)經(jīng)過處理的信號(hào)做振動(dòng)波形顯示,用MATLAB對(duì)所采集的振動(dòng)信號(hào)進(jìn)行分析處理。 金剛石串珠繩鋸在沒有切削進(jìn)給和切削進(jìn)給的兩種條件下,通過比較6個(gè)測(cè)量點(diǎn)的振動(dòng)信號(hào)可以發(fā)現(xiàn),只要切削參數(shù)一定,改變測(cè)量位置L與測(cè)量長(zhǎng)度A不會(huì)對(duì)振動(dòng)信號(hào)的頻率成分產(chǎn)生影響,但所測(cè)量振動(dòng)信號(hào)的振幅會(huì)有所變化。串珠繩鋸在沒有切削進(jìn)給時(shí),各個(gè)測(cè)點(diǎn)處串珠繩的振動(dòng)信號(hào)中所含信號(hào)頻率成分都相同,主要為串珠繩中鋼絲繩的振動(dòng)頻率和金剛石串珠(簡(jiǎn)稱串珠)的沖擊頻率;串珠繩在切削進(jìn)給時(shí),其振動(dòng)信號(hào)的頻率以串珠的沖擊頻率為主,當(dāng)進(jìn)給速度(vf)和線速度(vs)增大時(shí),串珠繩的振動(dòng)幅度會(huì)變小。 在串珠繩從沒有接觸石材工件到進(jìn)行穩(wěn)定切削的過程中,隨著串珠繩切入石材工件的深度增加,串珠繩的振動(dòng)幅值變小。
[Abstract]:Since the invention of diamond beaded rope saw, diamond beaded rope saw technology has been widely used in many fields because of its high efficiency and environmental protection, and has shown its unique advantages. In the promotion of green, low-carbon today, the application of diamond bead saw is particularly prominent. As a flexible machining tool, diamond bead rope will cause vibration in cutting process. The vibration of beaded rope directly affects the sawing process, and the violent vibration will affect the machining process. Therefore, the study of the vibration of beaded rope in the process of sawing is of great help to the understanding of the mechanism of beaded rope sawing. In this paper, the displacement vibration signals of beaded rope are collected synchronously by six laser displacement sensors. The vibration waveform of the processed signal is displayed by LabVIEW software, and the vibration signal is analyzed and processed by MATLAB. Diamond beaded rope saw can be found by comparing the vibration signals of six measuring points without cutting feed and cutting feed, as long as the cutting parameters are fixed, Changing the measuring position L and measuring length A will not affect the frequency component of the vibration signal, but the amplitude of the measured vibration signal will change. When the beaded rope saw has no cutting feed, the frequency components of the vibration signal of the beaded rope at each measuring point are the same, mainly the vibration frequency of the wire rope in the beaded rope and the impact frequency of the diamond bead string. The frequency of vibration signal of beaded rope is mainly the impact frequency of bead when the feed speed and linear velocity increase, the vibration amplitude of bead rope will become smaller. In the process of beaded rope from no contact with stone workpiece to steady cutting, the vibration amplitude of bead rope becomes smaller as the depth of bead rope cutting into stone workpiece increases.
【學(xué)位授予單位】：華僑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH161.6

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 肖威威;金剛石串珠繩鋸切割中的振動(dòng)與變形仿真研究[D];華僑大學(xué);2012年

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本文編號(hào)：2017010