棘輪套冷擠壓成形工藝及模具設(shè)計(jì)畢業(yè)論文-展示頁
2025-07-04 20:02本頁面
【正文】 12壓力機(jī)噸位計(jì)算 12擠壓設(shè)備類型選擇 13液壓式壓力機(jī)型號選擇 13四、冷擠壓模具結(jié)構(gòu)設(shè)計(jì) 13五、凸模設(shè)計(jì) 14凸模的長度尺寸計(jì)算 15凸模加工工藝路線 15六、凹模設(shè)計(jì) 16組合凹模結(jié)構(gòu)設(shè)計(jì) 17棘輪套擠壓齒形模芯的設(shè)計(jì) 17齒形模芯加工 20七、冷擠壓件質(zhì)量分析 20八、凸模機(jī)加工工藝 23九、非標(biāo)準(zhǔn)件三維結(jié)構(gòu)圖 24致謝 30參考文獻(xiàn) 31棘輪套塑性成形工藝及模具設(shè)計(jì)中文摘要：冷擠壓是精密塑性體積成形技術(shù)中的一個(gè)重要組成部分。冷擠壓是指在冷態(tài)下將金屬毛坯放入模具模腔內(nèi)，在強(qiáng)大的壓力和一定的速度作用下，迫使金屬從模腔中擠出，從而獲得所需形狀、尺寸以及具有一定力學(xué)性能的擠壓件。本設(shè)計(jì)介紹了棘輪套零件結(jié)構(gòu)分析、擠壓工藝過程、擠壓設(shè)備選擇、模具結(jié)構(gòu)的設(shè)計(jì)、凸凹模設(shè)計(jì)、擠壓件質(zhì)量分析、棘輪套齒形模芯的結(jié)構(gòu)、凸模加工工藝及模具各部件三維造型進(jìn)行了敘述，并計(jì)算了毛坯體積、毛坯尺寸、變形程度、擠壓比和擠壓力。關(guān)鍵詞：冷擠壓 棘輪套 正擠壓 凸緣 Ratchet sets of plastic forming process and die design (Tongling University ,mechanical Material Forming and Control Technology,07 mold Zhang Teng)Abstract: Volume precision plastic cold extrusion forming technology is an important ponent. Cold extrusion is the next in the cold metal blank into the mold cavity, the strong pressure and under a certain speed, forced metal extrusion from the mold cavity to obtain the required shape, size, and has some mechanical performance of extrusion Obviously, the cold extrusion process is to control the metal flow by mold, by transfer to a large number of metal forming volume parts. Ratchet sets introduced structure of parts, extrusion process, extrusion equipment selection, die structure design, punch and die design, extrusion quality analysis, ratchet sets of the structure of tooth punch, punch and die processing of parts, Threedimensional modeling of the narrative, and calculate the rough size, blank size, deformation, extrusion ratio and extrusion pressure. And conventional processing technology pared to ratchet set, ratchet set of cold extrusion with gear, high strength, high precision gear size, low surface roughness, high utilization ratio, high efficiency, less investment in equipment and other advantages.key words: Cold extrusion Ratchet sets Extrusion Flange圖1—棘輪套零件圖圖1所示為棘齒套零件圖。內(nèi)孔型腔表面要求光滑平整，無毛刺，劃痕，裂紋和折疊等缺陷存在。根據(jù)零件的結(jié)構(gòu)特點(diǎn)和材料的工藝特性，采用冷擠壓成形工藝比較適宜。1，材料選擇該棘輪套選用20CrMo鋼，該鋼材參照國家標(biāo)準(zhǔn)：GB/T 30771988。該材料的強(qiáng)度較低、塑性很好
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