本文選題：貼片機(jī) + 供料控制系統(tǒng)�。� 參考：《江蘇大學(xué)》2017年碩士論文

【摘要】：隨著中國電子制造業(yè)的迅速發(fā)展,國內(nèi)對(duì)表面貼裝技術(shù)(Surface Mount Technology,簡(jiǎn)稱SMT)貼片機(jī)需求的持續(xù)攀升,以及國外對(duì)SMT貼片機(jī)設(shè)備的技術(shù)壟斷,使得市場(chǎng)價(jià)格居高不下,企業(yè)生產(chǎn)成本過高。因此,研發(fā)擁有自主知識(shí)產(chǎn)權(quán)的國產(chǎn)高精度超高速貼片機(jī)成為當(dāng)前我國制造行業(yè)的一項(xiàng)重要的使命。供料器作為貼片機(jī)中用于輸送貼裝元件的重要部件,其供料的速度和精度對(duì)貼片機(jī)的貼裝精度有直接影響。如果供料器不能保證供料精度及供料效率,將導(dǎo)致產(chǎn)品不合格率上升,嚴(yán)重影響產(chǎn)品質(zhì)量。供料控制系統(tǒng)對(duì)供料器供料精度及供料效率有直接影響因素,然而國內(nèi)對(duì)供料控制系統(tǒng)缺乏系統(tǒng)的研究,因此,在先進(jìn)制造領(lǐng)域開展高速高精度貼片機(jī)供料控制系統(tǒng)的設(shè)計(jì)和實(shí)現(xiàn)具有巨大的工程應(yīng)用前景。本文針對(duì)企業(yè)中的實(shí)際問題——如何提高供料控制系統(tǒng)供料精度及供料效率的問題——展開研究,研究?jī)?nèi)容主要包括以下幾個(gè)方面:(1)設(shè)計(jì)了供料控制系統(tǒng)。在現(xiàn)有供料器結(jié)構(gòu)的基礎(chǔ)上,加入了供料位置檢測(cè)模塊,利用光電編碼器實(shí)現(xiàn)供料位置的實(shí)時(shí)檢測(cè),并設(shè)計(jì)了相關(guān)的位置檢測(cè)電路與控制軟件程序,保證了供料系統(tǒng)在高速下供料時(shí)的供料精度。(2)研究設(shè)計(jì)了供料控制系統(tǒng)硬件系統(tǒng)。供料控制系統(tǒng)硬件電路由控制和通信模塊兩大模塊組成,其中控制模塊包括微型處理器、供料速度控制電路及供料位置控制電路;通信模塊包括供料器的主控單元與通信單元相互之間的通信、供料系統(tǒng)與高速高精度貼片機(jī)相互之間的通信,實(shí)現(xiàn)了控制系統(tǒng)所要求的硬件功能。(3)研究設(shè)計(jì)了供料控制系統(tǒng)的軟件系統(tǒng)。針對(duì)現(xiàn)有供料系統(tǒng)在高速下的容易出現(xiàn)“失步”現(xiàn)象的問題,研究了基于插補(bǔ)算法與加減速算法相結(jié)合、并配合PID閉環(huán)控制的復(fù)合控制算法,解決了“失步”問題。在此基礎(chǔ)上,完成了整個(gè)供料器控制系統(tǒng)的軟件的設(shè)計(jì),包括控制模塊、通信模塊和人機(jī)交互界面三大部分,最終實(shí)現(xiàn)了整個(gè)供料控制系統(tǒng)的高速高精度控制。(4)實(shí)現(xiàn)了供料控制系統(tǒng)的硬件和軟件聯(lián)調(diào),并在高速高精度貼片機(jī)上進(jìn)行測(cè)試試驗(yàn),驗(yàn)證供料控制系統(tǒng)的穩(wěn)定性、供料的速率以及精度。試驗(yàn)結(jié)果表明:對(duì)0402封裝的電阻在貼片機(jī)上面供料控制系統(tǒng)供料速率為52000片/小時(shí),相比同類型的供料控制系統(tǒng)供料速度提高了6.7%,供料精度控制在±0.03mm以內(nèi);對(duì)0603封裝的電阻在貼片機(jī)上供料控制系統(tǒng)供料速率為36000片/小時(shí),相比同類型的供料控制系統(tǒng)供料速度提高了8%,供料精度控制在±0.06mm以內(nèi),達(dá)到高速高精度貼片機(jī)的貼片精度的要求。本文所設(shè)計(jì)的供料控制系統(tǒng)結(jié)構(gòu)合理、穩(wěn)定性高,為供料控制系統(tǒng)的研究打下了非常好的基礎(chǔ)。
[Abstract]:With the rapid development of China's electronic manufacturing industry, the domestic demand for surface Mount technology and the foreign monopoly on SMT machine equipment have made the market price high.The production cost of enterprises is too high.Therefore, the research and development of domestic high-precision high-speed placement machine with independent intellectual property rights has become an important mission of China's manufacturing industry.As an important part of mounting machine, the feeding speed and precision have a direct effect on the mounting accuracy of the mounting machine.If the feeder can not guarantee the feeding precision and efficiency, it will lead to the increase of the product nonconformity rate and seriously affect the product quality.Feed control system has direct influence on feed precision and feed efficiency. However, there is no systematic research on feed control system in China.In the field of advanced manufacturing, the design and realization of feed control system for high speed and high precision placement machine has a great prospect of engineering application.In this paper, the problem of how to improve the feeding accuracy and efficiency of the feed control system is studied. The main contents of the research include the following aspects: 1) the design of the feed control system.On the basis of the existing feeder structure, the feeding position detection module is added, and the real-time detection of the feeding position is realized by using the photoelectric encoder, and the related position detection circuit and control software program are designed.The hardware system of the feed control system is designed and designed to ensure the feeding precision of the feed system at high speed.The hardware circuit of feed control system is composed of two modules: control module and communication module. The control module includes micro-processor, feed speed control circuit and feed position control circuit.The communication module includes the communication between the main control unit of the feeder and the communication unit, the communication between the feeding system and the high speed and high precision placement machine, and the communication between the main control unit and the communication unit of the feeder.The hardware function required by the control system is realized. The software system of the feed control system is studied and designed.Aiming at the problem that the current feeding system is prone to "out of step" phenomenon at high speed, this paper studies the combination of interpolation algorithm and acceleration and deceleration algorithm, and combined with the compound control algorithm of PID closed-loop control to solve the "out-of-step" problem.On this basis, the software design of the whole feeder control system is completed, including control module, communication module and man-machine interface.Finally, the high speed and high precision control of the whole feeding control system is realized. The hardware and software of the feed control system are adjusted, and the test test is carried out on the high speed and high precision placement machine to verify the stability of the feed control system.Feed rate and accuracy.The experimental results show that the feeding rate of the control system for the 0402 package resistor on the chip mounting machine is 52000 pieces per hour. Compared with the same type of feed control system, the feeding speed is increased by 6.7%, and the feeding accuracy is controlled within 鹵0.03mm.Achieve high speed and high precision chip placement accuracy requirements.The designed feed control system has reasonable structure and high stability, which lays a good foundation for the research of feed control system.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP273;TN05

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