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腔的數(shù)量可 以 選 用 型 號 為 A420225001Z1 ( GB/T 12556 — 1990 ) . 基 本 參 數(shù) 是mm2 5 0mm2 0 0 ??? LB ,所選用的導柱為 mm20mm65mm16 ??? ( GB/T — 1984)。 模具的三維總裝配圖 通過上面的設計,模具的各個部分都已經(jīng)完全確定,接下來就是繪制模具的三維圖和二維圖。 模具合模裝配圖如 411 所示: 22 圖 411 裝配平面圖 5 結論 目前塑料產(chǎn)品正在沖擊著市場,大有在市場上占據(jù)一方的態(tài)勢。作為塑料的主要成形方式,注塑模具也隨著塑料產(chǎn)品的使用而大力發(fā)展,同時其他幾種成形方式也有一定的發(fā)展。本模具適用于加工圓柱注塑齒輪的。在某些情況下,需要潤滑的金屬齒輪辦不到,就可以選用具有自潤滑 能力的聚甲醛注塑齒輪。因此,聚甲醛注塑齒輪的市場前景是很好的,而且它的成本也比較低,除了一些需要高強度鋼材做的齒輪外,其他場合都可以用聚甲醛注塑齒輪。所以本模具具有很高的實用價值。 致謝 畢業(yè)設計是一次我們對自己大學期間學習科學文化知識成果的全面檢查,是一次學生階段的升華。設計所涉及的知識面相當廣泛,要求我們對基礎知識達到比較熟練的應用程度,其包括了大學期間所自修的自身涵養(yǎng)和專業(yè)知識的應用,需要我們有敏銳的洞察力和開放性思維。畢業(yè)設計是對所學知識的實踐、總結與提高,是初步學習運用已掌握的知識進行獨立且全面的 設計計算過程。因此,在設計中遇到了許多以前沒有遇到的問題和困難,在老師及同學的大力幫助和自己的不懈努力下,我逐步解決了所遇到的問題,圓滿完成了本次畢業(yè)設計任務,從而使自己的知識面得以拓寬,能力得到了提高。 本次設計的順利完成,首先感謝王老師精心指導和大力幫助。他時刻關注了解設計的進展情況,并提出很多寶貴意見,在此向王老師致以深深的感謝!同時也得到圖書館、資料室、機房等單位多位老師及各位學長、學姐的大力支持和幫助,再次深表謝意 ! 23 參考文獻 [1] 謝鵬程,(日)多田和美,楊衛(wèi)民等 . 高分子材料注射成型 CAE 理論及應用 [M]. 化學工業(yè)出版社, . [2]賈潤禮等 . 新型注塑模設計 [M]. 國防工業(yè)出版社, . [3]屈華昌 . 塑料成型工藝與模具設計 [M]. 高等教育出版社, . [4]朱光立 主編 . 模具 CAD/CAM 實踐教程 [M]. 人民郵電出版社, . [5]馮炳堯等 . 模具設計與制造簡明手冊 [M].上海科技出版社, . [6]徐進等 . 模具材料應用手冊 [M]. 機械工業(yè)出版社, . [7]Guern C L, Conil P、 Houot R. Role of calciumions in the mechanism of action of a lignosul phonate used to modify the wettability of plastics for their separation by flotation [J]. Minerals Engineering, 2022. [8]格蘭迪利( Grandilli, )著 .技術人員用塑料手冊 [M].龔瀏澄等譯 .北京 .中國石化出版社, . [9]邱漢平 .常用工程塑料手冊 [M].北京:機械工業(yè)出版社 ,. [10]翁其金 .塑料模塑成形技術 [M].北京:機械工業(yè)出版社 ,. [11]夏江梅 .塑料成形模具與設備 [M]. 北京:機械工業(yè)出版社 ,. [12]申開智 .塑料成形與模具 [M].北京:輕工業(yè)出版社 ,. [13]卜建新 .塑料模具設計 [M].北京:輕工業(yè)出版社 ,. [14]周坤魯 ,劉建柱 .提高塑料件尺寸精度的研究 .工程塑料應用 [M],2022(1):2324 [15]溫崇哲 .熱工及熱應力基礎 [M].北京 )機械工業(yè)出版社 , [16]濮良貴.機械設計 [M].北京:高等教育出版社, 2022. 6678 24 請您刪除一下內(nèi)容, O(∩ _∩ )O 謝謝!??! Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese 請您刪除一下內(nèi)容, O(∩ _∩ )O 謝謝!??! National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。 ll wait in the line for one hour to get a ticket, and another two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the weeklong holiday in October. Traveling during this period is a matter that needs thorough preparation. If you are short on time to plan the uping Golden Week it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting regardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the remended travelling route, China Inner Mongolia Arxan — Hailar — Manzhouli. It is also the joint of the four prairies across the SinoMongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the spirit of Genghis Khan. Walking into Arxan, you will be amazed by a kaleidoscope of geous colors all the year round the Spring azaleas blooming red in the snow, the Summer sea wavering blue in the breeze, the Autumn leaves painted in yellow covering volcanic traces, and the Winter woods shining white on the vast alpine snowscape. Hinggan League Arxan city is situated in the far eastern area of Inner Mongolia Autonomous Region. Its full name Haren Arxan means hot holy water in the Mongolian language. Arxan is a tourism city in the northern frontier with a blend of large forest, grand prairies, vast snowfield, heaven lake cluster, thermium, as well as volcanic cluster. It is a rare and unique ecotourism base filled with healthy sunshine, clean air and unspoiled green. Nestled close to the country39。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as it39。s time for the wild fruits to ripe. The picturesque Arxan in Autumn is indeed a fairyland only exists in a dream that satisfies all your fantasies. If it rains heavily on Saturday night, some elderly Chinese will say it is because Zhinu, or the Weaving Maid, is crying on the day she met her husband Niulang, o