發(fā)布時間：2018-06-12 07:02

  本文選題：激光位移傳感器 + PLC控制　； 參考：《華北電力大學(xué)》2017年碩士論文

【摘要】：隨著現(xiàn)代科學(xué)技術(shù)的進步,制造行業(yè)在不斷使用新技術(shù)與新方法解決一些過去難以解決的問題。刀具磨損是影響產(chǎn)品加工精度、加工質(zhì)量與加工效率的關(guān)鍵問題之一。所以刀具磨損檢測一直是機械加工過程中重要的研究課題。在刀具磨損檢測技術(shù)的探索上,不斷有學(xué)者提出新的技術(shù)方法并進行研究。為了得到刀具的三維形貌,有人嘗試使用三坐標測量機及斷層掃描技術(shù),但這兩種方法測量速度慢、造價高,無法滿足實際刀具設(shè)計和性能分析的需要。因此,快速而準確的刀具三維形貌測量系統(tǒng)是機械加工領(lǐng)域亟需解決的問題。本文擬采用激光位移傳感器作為采集工具得到刀具表面尺寸信息。激光位移傳感器發(fā)出激光照射在刀具表面,然后由傳感器內(nèi)部的CMOS相機采集數(shù)據(jù)。通過滑臺的移動實現(xiàn)對刀具表面進行逐行掃描。最后采用抽樣方法對采集到刀具表面形貌位置信息進行精簡處理。采用多基準面建模得出刀具表面形貌信息,能直觀精確的對刀具狀況進行檢測。本文采用激光位移傳感器作為信息采集元件,采用型材搭建的框架搭載由PLC控制的步進電機移動平臺作為刀具載體,進行了激光位移傳感器在刀具磨損檢測中的應(yīng)用研究。最后研制出基于激光位移傳感器的刀具磨損檢測裝置。為進一步在數(shù)控車床上的刀具磨損實時檢測做前期準備。本文在參考并綜述國內(nèi)外的刀具磨損檢測狀況的基礎(chǔ)上,進行了一些創(chuàng)新型研究。主要體現(xiàn)在移動平臺結(jié)構(gòu)的控制設(shè)計以及激光位移傳感器的應(yīng)用上,做出的工作包括以下內(nèi)容:激光位移傳感器的選取,移動平臺框架的設(shè)計,PLC對步進電機的控制設(shè)計以及激光位移傳感器數(shù)據(jù)的采集處理,最后對磨損刀具的檢測試驗。
[Abstract]:With the progress of modern science and technology, the manufacturing industry is constantly using new technologies and methods to solve some problems that were difficult to solve in the past. Tool wear is one of the key problems affecting product machining precision, machining quality and machining efficiency. Therefore, tool wear detection has been an important research topic in the process of machining. In the exploration of tool wear detection technology, some scholars put forward new methods and research. In order to obtain the 3D profile of the tool, some people try to use the 3D coordinate measuring machine and the fault scanning technology, but these two methods are slow in measuring speed and high in cost, which can not meet the needs of the actual tool design and performance analysis. Therefore, the rapid and accurate measuring system of three-dimensional profile of cutting tools is an urgent problem in the field of machining. In this paper, the laser displacement sensor is used as the acquisition tool to obtain the tool surface size information. The laser displacement sensor emits a laser on the surface of the tool and then collects data from a CMOS camera inside the sensor. The tool surface is scanned line by moving the slide table. Finally, the sampling method is used to simplify the position information of the tool surface. The multi-datum modeling is used to obtain the tool surface topography information, which can detect the cutting tool condition intuitively and accurately. In this paper, the laser displacement sensor is used as the information acquisition element, and the frame built by the profile is used to carry on the application of the laser displacement sensor in the tool wear detection by using the PLC controlled stepping motor moving platform as the tool carrier. Finally, a tool wear detection device based on laser displacement sensor is developed. In order to further the NC lathe tool wear real-time detection preparation. On the basis of reference and review of tool wear detection situation at home and abroad, some innovative researches have been carried out in this paper. It is mainly reflected in the control design of the mobile platform structure and the application of the laser displacement sensor. The work done includes the following contents: the selection of the laser displacement sensor, The design of mobile platform frame includes the control design of stepping motor by PLC and the data acquisition and processing of laser displacement sensor. Finally, the testing test of wear tool is carried out.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TH744.5;TG71

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本文編號：2008807