【摘要】：皮革的柔軟性能、豐滿性能、彈性性能，很難采用一種或者兩種力學(xué)性能進(jìn)行完整的描述，本課題開發(fā)一種新型皮革性能指標(biāo)測試儀，客觀的實現(xiàn)皮革性能指標(biāo)的測定。該儀器包括機(jī)械部系統(tǒng)、運動控制系統(tǒng)以及檢測系統(tǒng)組成。 首先，根據(jù)皮革性能指標(biāo)檢測的運動要求，采用PROE5.0及AutoCAD2007作為設(shè)計平臺，完成了該測量系統(tǒng)的本體設(shè)計、傳感器夾持裝置設(shè)計，為控制系統(tǒng)設(shè)計和檢測系統(tǒng)設(shè)計提供了載體。 其次，根據(jù)皮革性能指標(biāo)檢測的運動要求，開發(fā)了以STC89C52單片機(jī)為控制器，包括Leetro DMD402A步進(jìn)電機(jī)及其驅(qū)動器以及精密電控位移臺的運動控制系統(tǒng)。使用Keil uVision2作為程序設(shè)計的開發(fā)工具，開發(fā)了控制系統(tǒng)軟件。由單片機(jī)發(fā)出脈沖信號PUL對步進(jìn)電機(jī)進(jìn)行轉(zhuǎn)角控制，發(fā)出方向信號DIR對步進(jìn)電機(jī)進(jìn)行方向控制，完成步進(jìn)電機(jī)的正轉(zhuǎn)與反轉(zhuǎn)控制以及加減速控制。這些運動用于實現(xiàn)皮革的頂伸性能、壓縮性能、彎曲性能的測試。 之后，完成了檢測系統(tǒng)設(shè)計。該系統(tǒng)也包括硬件和應(yīng)用程序兩個部分。硬件結(jié)構(gòu)組成主要包括單片機(jī)及其外圍電路、光柵位移傳感器以及壓力傳感器及與之配套的變送器等。應(yīng)用程序設(shè)計部分利用Keil uVision2作為軟件開發(fā)平臺，實現(xiàn)數(shù)據(jù)的采集、處理。 最后，完成了上述三個系統(tǒng)的融合，實現(xiàn)了三種不同類型的力學(xué)性能的測試，從而為客觀評價皮革綜合性能奠定了基礎(chǔ)。實驗表明，STC89C52單片機(jī)用于運動控制系統(tǒng)和數(shù)據(jù)采集及處理系統(tǒng)，具有程序設(shè)計便捷，開發(fā)成本低及可操作性強(qiáng)等優(yōu)點，，便于現(xiàn)場檢測要求。
[Abstract]:It is difficult to describe the softness, fullness and elasticity of leather by one or two kinds of mechanical properties. In this paper, a new leather performance index tester is developed to objectively determine the leather performance index. The instrument includes mechanical department system, motion control system and detection system. Firstly, according to the motion requirements of leather performance index detection, PROE5.0 and AutoCAD2007 are used as the design platform to complete the body design of the measurement system and the design of sensor clamping device, which provides a carrier for the design of control system and detection system. Secondly, according to the motion requirements of leather performance index detection, a motion control system based on STC89C52 single chip microcomputer is developed, which includes Leetro DMD402A stepping motor and its driver and precision electric displacement table. Using Keil uVision2 as the development tool of programming, the control system software is developed. The pulse signal PUL is sent out by the single chip microcomputer to control the rotation angle of the stepping motor, the direction signal DIR is sent out to control the direction of the stepping motor, and the forward and reverse control and acceleration and deceleration control of the stepping motor are completed. These movements are used to test the top extension, compression and bending properties of leather. After that, the design of the detection system is completed. The system also includes two parts: hardware and application. The hardware structure mainly includes single chip microcomputer and its peripheral circuit, grating displacement sensor, pressure sensor and the corresponding transmitter. In the application design part, Keil uVision2 is used as the software development platform to collect and process the data. Finally, the fusion of the above three systems is completed, and the tests of three different types of mechanical properties are realized, which lays a foundation for the objective evaluation of the comprehensive properties of leather. The experimental results show that STC89C52 single chip microcomputer is used in motion control system and data acquisition and processing system, which has the advantages of convenient program design, low development cost and strong maneuverability, and is convenient for field detection.
【學(xué)位授予單位】：陜西科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP368.1;TP216

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本文編號：2508770