【正文】 模行程 S/mm 300 模具最大厚度 /mm 300 模具最小厚度 /mm 200 噴嘴圓弧半徑 /mm 12 噴嘴孔徑 /mm 4 拉桿空間 /mm 260*290 常州機電職業(yè)技術(shù)學(xué)院 畢業(yè)設(shè)計正文 第 頁 18 模架選擇 根據(jù)分析及位置尺寸初選用 FUTABASSA3035 標(biāo)準模架 ,其各參數(shù)： 定模板 A厚度 /mm 50 動模板 B厚度 /mm 40 墊塊 C厚度 /mm 80 模具厚度 /mm 265 模具外形尺寸 /mm 300X350X265 模架選擇圖 校核注塑機 （ 1）注射量、鎖模力、注射壓力、 模具厚度的校核 由于在初選注射機和選用模架時是根據(jù)以上的技術(shù)參數(shù)及計算壁厚等因素所選用的，所以注射量、鎖模力、注射壓力、模具厚度不必進行校核。 注：模具所需開模距離 S S ≥ h 件 +h 澆 +a+(5— 10)mm 式中 h 件 —— 塑料制品高度（ mm） h 澆 —— 澆注系統(tǒng)高度（ mm） h 件 + h 澆 + a+(5— 10) =12+73+50+10=145mm 均滿足要求 （ 3） 模具與注塑機安裝部分相關(guān)尺寸校核 1) 模具閉合尺寸與注塑機模板尺寸和拉桿間距相比較： 模具的座板長179。 mm）＜注塑機模板尺寸 428179。其中機械驅(qū)動是利用注塑機的開模運動或頂出作用力，通過哈弗針使其轉(zhuǎn)化為側(cè)向分型或抽芯動作，這種方法在注塑模具中應(yīng)用最廣泛。 推出結(jié)構(gòu)設(shè)計 （ 1）推件力計算 推件力 Ft =Ap（ ? cos? － sin? ） +qA1 式中 A—— 塑件包絡(luò)型芯的面積（ mm2） 。 ? —— 脫模斜度； q—— 大氣壓力 ； ? —— 塑件對鋼的摩擦系數(shù)μ，約為 ～ ； A1 —— 制件垂直于脫模方向的投影面積（ mm2）。 179。 根據(jù)塑件的形狀特點，模具型腔在動模部分，開模后，塑件留在型芯上。為了縮短成型周期，需要對模具進行冷卻，因此塑料注塑模具的冷卻系統(tǒng)的設(shè)計計算，不僅影響成型制件的質(zhì)量，還直接影響到生產(chǎn)效率。 假設(shè)模具平均工作溫度為 50℃，用常溫 20℃的水作為模具冷卻介質(zhì)，其出口溫度為 30℃，產(chǎn)量為（ 1套 /min）即 179。 100=， 冷卻水的流 量體積可根據(jù)公式)( 211 ttP QV c ??計算， 式中： pc cP ?601 ? 的 ? 表示冷卻水在使用狀態(tài)下的密度，單位 3mkg pc 表示冷卻水的比熱容 其中 。 排氣系統(tǒng)設(shè)計 在塑料件注塑成型過程中， 當(dāng)塑料熔體充填型腔時，必須排出型腔及澆注系統(tǒng)內(nèi)的空氣 以 及 因 塑料受熱而產(chǎn)生的氣體。所以選擇優(yōu)質(zhì)、合理的材料，是生產(chǎn)高質(zhì)量模具的保證。s work is usually small calculator and personal puter terminals formed. An effective management system. (Effective Management SystemEMS) software to track the course of processing management. Master processing such as the progress of the circulation status of parts, pieces of the procurement outsourcing situation, receiving and processing quality of the situation. This management system also includes a list of materials, planning and control, inventory management, standard castings, biographical material, with a total production schedules, material requirements plans, orders and sales history, delivery quantity, the operator resume control of the workshop status, schedule, quality assessment, the standard processing line, capacity requirements plan, labor costs, outsourcing plans and delivery status, requisitions, purchase pieces of history and the number of deliverables. Application of the software you can 常州機電職業(yè)技術(shù)學(xué)院 畢業(yè)設(shè)計正文 第 頁 30select the appropriate items purchased to save time and labor. Information about the status of all the processing pletely into the inventory management in order to generate a list of sound materials. And then carried out in accordance with the processing line, processing in an orderly manner. The system also provides the operator the daily working hours and machine tool operation processing time data, as well as the work stoppage time to be expected. Sixth of the fast tool servo control Rapid tooling technology is a fast, convenient and practical tool manufacturing technology. This technology is characterized by: a short molding cycle, process simple, easy to promote lowcost tooling, precision and longevity to meet the needs of a particular function, integrated economic good. Especially suitable for trial of new product development, process validation and functional verification, as well as many varieties of small batch production. Due to the increasingly fierce market petition, products, accelerating the pace of replacement, multivariety lowvolume manufacturing will be an important mode of production, in this case, the manufacturing sector to the rapid prototype manufacturing and rapid tooling manufacturer has 常州機電職業(yè)技術(shù)學(xué)院 畢業(yè)設(shè)計正文 第 頁 31made a strong requirements. Therefore, the rapid tooling technology trends vibrantly alive. In recent years, due in the optical and precision engineering system, brittle materials such as glass, ceramic, germanium and zinc sulfide have been caused by the diamond turning of great concern to the people concerned. When the diamond turning of brittle materials, the material may be extended for cutting the state should be maintained in order to avoid damage to the surface material. Brittle materials in general may extend the state of processing can be very low depth of cut and feed rate, but as a result of friction and backlash, especially in the low feed rate, machine coordinates to achieve mmlevel positioning accuracy is very difficult. From static friction to Coulomb friction at very low feed conversion rate of the friction is highly nonlinear, it is difficult to simulate the design. Machine tool to pensate for the friction and the effects of recoil, the design and manufacture of precisionmm three degrees of freedom (DOF) as a quick locator tool servo. This is a standalone positioning device, and the traditional guide rod and the mechanical structure pared to its small, but with high bandwidth and high precision. As a fast tool servo of nanometer Locator feedback 常州機電職業(yè)技術(shù)學(xué)院 畢業(yè)設(shè)計正文 第 頁 32controller and motor drive bined with a high positioning accuracy can be a big trip. Using CMAC neural work control algorithm, available than the standard PID control algorithm and better tracking capabilities and online memory. PC bus through the use of DSPbased on the C language and memory control, to control the diamond turning machine tool and locatornm. 常州機電職業(yè)技術(shù)學(xué)院 畢業(yè)設(shè)計正文 第 頁 33 凸顯成本優(yōu)勢 模具制造新技術(shù) 隨著模具制造的技能化逐步向科學(xué)化發(fā)展，原來依靠主模型和繪制圖形制造汽車覆蓋件模具的傳統(tǒng)方法 ,逐步由 CAD/CAM 終端將由數(shù)字描述的汽車 覆蓋件形狀轉(zhuǎn)為加工軌跡的方法所取代。 一、在用鑄造方法制造模具時，首先必須置備木模或汽車零件的樣件按照一定比例制成的模型稱之為靠模，常被用作仿形加工中的母型，或作為顯示銑床加工軌跡的輔助模型。 雖然用這種新工藝能比以往加工方法更精確地加工出模具的兩對合面，但對于壓形還要進行試模，并對試樣進