【摘要】：隨著高分子材料技術(shù)的進(jìn)步和生活水平的不斷提高,從事于各行業(yè)的人們對(duì)于織物的功能性、舒適性以及美觀性有著更高的要求。只有將研究重點(diǎn)集中在化學(xué)纖維的制造技術(shù)上才可能滿(mǎn)足這些需求�；w紡絲的一個(gè)高精密零部件是噴絲板,噴絲板的加工質(zhì)量、加工精度以及基本結(jié)構(gòu)都會(huì)影響到紡絲的質(zhì)量。此外,要實(shí)現(xiàn)微孔的全自動(dòng)化加工需要進(jìn)行多方位的研究,鉆削刀具、鉆削工藝、刀具在線(xiàn)觀測(cè)裝置以及現(xiàn)場(chǎng)控制等,進(jìn)而設(shè)計(jì)研發(fā)一套集刀具在線(xiàn)觀測(cè)、磨損補(bǔ)償、自動(dòng)清屑的微孔自動(dòng)化加工裝置和自動(dòng)化加工工藝。本文通過(guò)查閱文獻(xiàn),研究了當(dāng)前國(guó)內(nèi)外對(duì)于噴絲板微孔加工的研究現(xiàn)狀,并且分析了在微孔加工方面國(guó)內(nèi)外技術(shù)所存在的問(wèn)題及缺陷,以及微孔加工對(duì)于噴絲板尺寸精度以及制造工藝的要求等等。需要指出的是國(guó)外噴絲板微孔加工基本實(shí)現(xiàn)了全自動(dòng)化數(shù)控加工,而國(guó)內(nèi)還是處于較為落后的傳統(tǒng)手工加工階段,經(jīng)常出現(xiàn)刀具折斷、補(bǔ)償不及時(shí)、留底厚度不統(tǒng)一、加工效率低等問(wèn)題,亟需解決。其次在微孔全自動(dòng)化加工裝備等方面,針對(duì)微小盲孔難排屑、刀具磨損補(bǔ)償及微型扁鉆容易折斷等難題,提出主軸中空出氣數(shù)控走位清屑、使用對(duì)刀儀實(shí)現(xiàn)刀具磨損補(bǔ)償及刀具在線(xiàn)折斷檢測(cè)等特殊功能,在原有加工中心的基礎(chǔ)上增加自動(dòng)化加工所需的相關(guān)輔助功能。全自動(dòng)化微孔加工工藝與傳統(tǒng)手工鉆削工藝相比具有巨大優(yōu)勢(shì),因此進(jìn)行全自動(dòng)加工時(shí)需要進(jìn)行工藝刀具參數(shù)和鉆削工藝的優(yōu)化。本課題通過(guò)DEFORM-3D軟件模擬與正交實(shí)驗(yàn)相結(jié)合的辦法,以軸向力(FZ)和扭矩(M)結(jié)合鉆孔個(gè)數(shù)作為評(píng)價(jià)指標(biāo)優(yōu)化微型扁鉆工藝參數(shù),再在實(shí)際加工效果相結(jié)合,綜合取得微孔加工的最佳參數(shù)。最后,在上述研究的基礎(chǔ)上,針對(duì)加工過(guò)程進(jìn)行優(yōu)化,提出了噴絲板微孔全自動(dòng)化加工專(zhuān)用CNC配置,探索出微孔合理的加工工藝,提高了每把刀具加工的孔數(shù)和微孔加工的質(zhì)量及效率。
[Abstract]:With the progress of polymer material technology and the improvement of living standard, people engaged in various industries have higher requirements for fabric functionality, comfort and aesthetics. These needs can only be met by focusing research on the manufacturing technology of chemical fibers. A high precision component of chemical fiber spinning is spinneret. The processing quality, machining precision and basic structure of spinneret affect the quality of spinning. In addition, in order to realize the full automatic machining of microholes, it is necessary to carry out multi-directional research, such as drilling tool, drilling technology, tool on-line observation device and field control, etc., and then design and develop a set of tools on-line observation, wear compensation, etc. Automatic chip removal micro-hole automatic processing device and automatic processing technology. In this paper, the current research status of spinneret micro-hole machining at home and abroad is studied, and the existing problems and defects in micro-hole machining are analyzed. And micro-hole machining for spinneret size accuracy and manufacturing process requirements and so on. It should be pointed out that foreign spinneret microhole machining has basically realized full automatic NC machining, but in China it is still in the backward stage of traditional manual machining. The cutting tools are often broken, the compensation is not in time, and the bottom thickness is not uniform. The problem of low processing efficiency needs to be solved urgently. Secondly, in the aspect of automatic machining equipment of micro hole, aiming at the difficult problems of small blind hole, tool wear compensation and easy breakage of micro flat drill, the paper puts forward that the main shaft can be removed by numerical control (NC) walking through hollow air. The special functions of tool wear compensation and tool on-line fracture detection are realized by using the tool counter, and the related auxiliary functions for automatic machining are added on the basis of the original machining center. Compared with the traditional manual drilling process, the fully automatic micro-hole machining process has great advantages. Therefore, the optimization of the process tool parameters and drilling process is needed for automatic machining. Through the method of DEFORM-3D software simulation and orthogonal experiment, the axial force (FZ) and torque (M) combined with the number of boreholes are used as evaluation indexes to optimize the process parameters of micro flat drill, and then combine with the actual processing effect. The optimum parameters of microhole machining are obtained. Finally, on the basis of the above research, aiming at the optimization of the machining process, the special CNC configuration for the full automatic machining of the spinneret microholes is proposed, and the reasonable machining process of the microholes is explored. The number of holes per tool and the quality and efficiency of microhole machining are improved.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TG659;TQ340.5

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