多頭式平面LED固晶機(jī)結(jié)構(gòu)設(shè)計(jì)
發(fā)布時(shí)間：2018-09-09 08:45
【摘要】：針對目前市面上的固晶機(jī)都是單吸嘴結(jié)構(gòu),本文設(shè)計(jì)了一款多吸嘴的焊頭機(jī)構(gòu)的固晶機(jī),具有連續(xù)取晶、固晶的特點(diǎn),比單吸嘴固晶機(jī)在速度和精度方面有優(yōu)勢。采用虛擬樣機(jī)技術(shù)和有限元技術(shù)對設(shè)計(jì)的機(jī)構(gòu)進(jìn)行分析,其結(jié)果滿足固晶工藝要求,該設(shè)計(jì)方案具有一定的理論意義和實(shí)際應(yīng)用價(jià)值。本文設(shè)計(jì)的固晶機(jī)主要由七大機(jī)構(gòu)組成,七大機(jī)構(gòu)分別是：多吸嘴焊頭機(jī)構(gòu)、點(diǎn)膠機(jī)構(gòu)、頂針機(jī)構(gòu)、X-Y支架工作臺、晶圓供送機(jī)構(gòu)、光學(xué)鏡筒及照明機(jī)構(gòu)和機(jī)架及其附屬機(jī)構(gòu)。本論文主要完成以下幾方面的工作：(1)多吸嘴焊頭機(jī)構(gòu)的設(shè)計(jì)分析了焊頭機(jī)構(gòu)的工作原理,包括：光電傳感器式檢測漏晶或吸嘴堵塞、電磁閥控制真空和吹氣完取成晶固晶、彈簧緩沖實(shí)現(xiàn)吸嘴“軟著路”等。設(shè)計(jì)的多吸嘴焊頭機(jī)構(gòu)提供兩種工作模式,模式一：采用8吸嘴結(jié)構(gòu),焊頭機(jī)構(gòu)每一工步都能完成取晶和固晶；模式二：采用4吸嘴、4點(diǎn)膠頭的結(jié)構(gòu),焊頭機(jī)構(gòu)能分兩工步完成取膠、點(diǎn)膠、取晶和固晶。本文詳細(xì)介紹了模式一的工作過程,并設(shè)計(jì)了相應(yīng)的8吸嘴焊頭機(jī)構(gòu)。8吸嘴焊頭機(jī)構(gòu)中,焊頭機(jī)構(gòu)的旋轉(zhuǎn)運(yùn)動部件采用DDR (Direct Drive Rotation)直驅(qū)電機(jī)驅(qū)動,利用直驅(qū)電機(jī)具有高重復(fù)定位精度、高加速度、免維護(hù)等特點(diǎn),能大大提高焊頭機(jī)構(gòu)的性能；焊頭機(jī)構(gòu)的Z向運(yùn)動部件采用高精度微型LM滾動導(dǎo)軌,在滿足精度的前提下盡量減輕Z向運(yùn)動機(jī)構(gòu)的質(zhì)量,提高Z向運(yùn)動響應(yīng)性；焊頭機(jī)構(gòu)的電氣回轉(zhuǎn)接口部件采用了氣電混合旋轉(zhuǎn)接頭,有效解決了連續(xù)轉(zhuǎn)動導(dǎo)致電氣線路和氣管纏繞的問題。(2)其他部分機(jī)構(gòu)的設(shè)計(jì)其他部分機(jī)構(gòu)包括：X-Y支架工作臺、頂針機(jī)構(gòu)、晶圓供送機(jī)構(gòu)、點(diǎn)膠機(jī)構(gòu)、CCD (Charge coupled Device)光學(xué)鏡頭及調(diào)節(jié)機(jī)構(gòu)和機(jī)架等零部件。本文主要介紹了X-Y支架工作臺、頂針機(jī)構(gòu)、晶圓供送機(jī)構(gòu)的工作原理及結(jié)構(gòu)設(shè)計(jì)。X-Y支架工作臺采用伺服電機(jī)驅(qū)動,滾珠絲杠副傳動,并利用線性導(dǎo)軌滑塊完成承載和導(dǎo)向。支架載物臺還具有調(diào)節(jié)高度,可以適應(yīng)不同規(guī)格的LED支架。該機(jī)構(gòu)具有快速響應(yīng),高精度、通用的特點(diǎn)。頂針機(jī)構(gòu)采用偏心輪機(jī)構(gòu)和精密V型導(dǎo)軌副相結(jié)合的機(jī)構(gòu),由步進(jìn)電機(jī)通過聯(lián)軸器直接驅(qū)動,結(jié)構(gòu)簡單、成本較低,可以滿足刺晶需求。晶圓供送機(jī)構(gòu)的下部分為串聯(lián)的X-Y工作臺,可以實(shí)現(xiàn)位置的精密微調(diào),其上部分為懸臂結(jié)構(gòu)的晶圓環(huán)座,用于放置并固定晶圓。(3)焊頭機(jī)構(gòu)的仿真分析本文綜合運(yùn)用CAD\CAE集成環(huán)境,對平面LED多吸嘴固晶機(jī)進(jìn)行了較為系統(tǒng)的設(shè)計(jì)分析和研究。使用三維設(shè)計(jì)軟件SolidWorks2013對樣機(jī)進(jìn)行了三維建模和虛擬裝配；結(jié)合有限元分析軟件ANSYS14.0對焊頭機(jī)構(gòu)的關(guān)鍵零件進(jìn)行模態(tài)分析,確定其固有頻率和振型。建立柔性體,最后使用機(jī)械系統(tǒng)動力學(xué)仿真分析軟件ADAMS2012對多吸嘴焊頭機(jī)構(gòu)進(jìn)行了仿真分析,得出吸嘴在取晶位和固晶位置的接觸力,由此來驗(yàn)證機(jī)構(gòu)是否滿足設(shè)計(jì)要求。
[Abstract]:In view of the single-suction-nozzle structure of the current crystal-fixing machine on the market, this paper designs a multi-suction-nozzle solidifying machine for welding head mechanism, which has the characteristics of continuous crystallization and solidification, and has advantages over single-suction-nozzle solidifying machine in speed and precision. The design scheme has certain theoretical significance and practical application value. The crystal fixer designed in this paper is mainly composed of seven mechanisms: multi-suction welding head mechanism, dispensing mechanism, thimble mechanism, X-Y support workbench, wafer feeding mechanism, optical lens barrel and lighting mechanism, frame and its subsidiary mechanism. The main work of this paper is as follows: (1) The design and analysis of multi-nozzle welding head mechanism work principle, including: photoelectric sensor type detection of crystal leakage or nozzle blockage, solenoid valve control of vacuum and blowing complete crystallization, spring buffer to achieve the suction nozzle "soft path" and so on. There are two working modes, one is using 8 suction nozzles structure, each step of the welding head mechanism can complete crystallization and solidification; the other is using 4 suction nozzles, 4 point head structure, the welding head mechanism can complete glue extraction, dispensing, crystallization and solidification in two steps. In structure.8 suction nozzle welding head mechanism, the rotating moving parts of the welding head mechanism are driven by DDR (Direct Drive Rotation) direct drive motor, which has the characteristics of high repetitive positioning accuracy, high acceleration and maintenance-free, and can greatly improve the performance of the welding head mechanism; the Z-direction moving parts of the welding head mechanism adopt high-precision micro LM rolling guide rail. On the premise of satisfying the precision, the quality of Z-direction motion mechanism is reduced as far as possible, and the Z-direction motion responsiveness is improved. The electric rotary joint of welding head mechanism adopts the pneumatic-electric hybrid rotary joint, which effectively solves the problem of winding of electric circuit and trachea caused by continuous rotation. (2) Other parts of mechanism design include: X-Y bracket. Workbench, ejector pin mechanism, wafer feeding mechanism, dispensing mechanism, CCD (Charge coupled device) optical lens and adjusting mechanism and rack and other parts and components. This paper mainly introduces the working principle and structure design of X-Y support workbench, ejector pin mechanism, wafer feeding mechanism. X-Y support workbench adopts servo motor drive, ball screw pair drive. The support platform also has adjustable height, which can adapt to different specifications of LED brackets. The mechanism has the characteristics of fast response, high precision and versatility. The lower part of the wafer feeding mechanism is a series X-Y workbench, which can adjust the position precisely. The upper part is a cantilever structure of the wafer ring seat, which is used to place and fix the wafer. (3) Simulation analysis of the welding head mechanism. This paper uses the CADCAE integrated environment to fix the plane LED multi-suction nozzle. The prototype was modeled and assembled by SolidWorks 2013, and the key parts of the welding head mechanism were analyzed by finite element analysis software ANSYS14.0 to determine its natural frequency and vibration mode. The mechanical simulation software ADAMS2012 is used to simulate and analyze the multi-suction head mechanism, and the contact force between the suction head and the solid crystal position is obtained to verify whether the mechanism meets the design requirements.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN312.8
本文編號：2231889
[Abstract]:In view of the single-suction-nozzle structure of the current crystal-fixing machine on the market, this paper designs a multi-suction-nozzle solidifying machine for welding head mechanism, which has the characteristics of continuous crystallization and solidification, and has advantages over single-suction-nozzle solidifying machine in speed and precision. The design scheme has certain theoretical significance and practical application value. The crystal fixer designed in this paper is mainly composed of seven mechanisms: multi-suction welding head mechanism, dispensing mechanism, thimble mechanism, X-Y support workbench, wafer feeding mechanism, optical lens barrel and lighting mechanism, frame and its subsidiary mechanism. The main work of this paper is as follows: (1) The design and analysis of multi-nozzle welding head mechanism work principle, including: photoelectric sensor type detection of crystal leakage or nozzle blockage, solenoid valve control of vacuum and blowing complete crystallization, spring buffer to achieve the suction nozzle "soft path" and so on. There are two working modes, one is using 8 suction nozzles structure, each step of the welding head mechanism can complete crystallization and solidification; the other is using 4 suction nozzles, 4 point head structure, the welding head mechanism can complete glue extraction, dispensing, crystallization and solidification in two steps. In structure.8 suction nozzle welding head mechanism, the rotating moving parts of the welding head mechanism are driven by DDR (Direct Drive Rotation) direct drive motor, which has the characteristics of high repetitive positioning accuracy, high acceleration and maintenance-free, and can greatly improve the performance of the welding head mechanism; the Z-direction moving parts of the welding head mechanism adopt high-precision micro LM rolling guide rail. On the premise of satisfying the precision, the quality of Z-direction motion mechanism is reduced as far as possible, and the Z-direction motion responsiveness is improved. The electric rotary joint of welding head mechanism adopts the pneumatic-electric hybrid rotary joint, which effectively solves the problem of winding of electric circuit and trachea caused by continuous rotation. (2) Other parts of mechanism design include: X-Y bracket. Workbench, ejector pin mechanism, wafer feeding mechanism, dispensing mechanism, CCD (Charge coupled device) optical lens and adjusting mechanism and rack and other parts and components. This paper mainly introduces the working principle and structure design of X-Y support workbench, ejector pin mechanism, wafer feeding mechanism. X-Y support workbench adopts servo motor drive, ball screw pair drive. The support platform also has adjustable height, which can adapt to different specifications of LED brackets. The mechanism has the characteristics of fast response, high precision and versatility. The lower part of the wafer feeding mechanism is a series X-Y workbench, which can adjust the position precisely. The upper part is a cantilever structure of the wafer ring seat, which is used to place and fix the wafer. (3) Simulation analysis of the welding head mechanism. This paper uses the CADCAE integrated environment to fix the plane LED multi-suction nozzle. The prototype was modeled and assembled by SolidWorks 2013, and the key parts of the welding head mechanism were analyzed by finite element analysis software ANSYS14.0 to determine its natural frequency and vibration mode. The mechanical simulation software ADAMS2012 is used to simulate and analyze the multi-suction head mechanism, and the contact force between the suction head and the solid crystal position is obtained to verify whether the mechanism meets the design requirements.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN312.8
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