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Positioning plate stamping mould design
This design is the design of the punching blanking composite mold, using the basic knowledge of stamping forming technology and die design, the figure for stamping die mold process of a given analysis, size calculation, data access, so as to design the mold.
Common cold stamping mould design is according to the size of the design components, materials, such as mass production process step by step analysis to determine the blanking process design and die structure, and then through the process design and calculation, calculation of impact force and pressure center, primary press die set and standards.This design introduced the die design of the layout and the way feeding and discharging and orientation, calculate the convex and concave die cutting edge dimension and tolerance, finally chooses parts design, check and draw the mold assembly drawing.And some of the components are selected according to the standard, there is no further design.This design through the analysis of the process, considering the economy, parts stamping manufacturability as well as the complexity and precision on the basis of many factors, such as finishing.
Positioning plate material is Q235 plain carbon steel, the thickness of 0.5 mm, mass production.First, the structure analysis was carried out on the workpiece, the cutting process analysis, demonstration, carries on the overall structure design of mould scheme, the main pieces of process planning, must process calculation, manufacturing, and certain technical and economic analysis, etc.Then, the design and the main parts of the die, and draw the working parts of general assembly drawing and part drawing.
The blanking pieces of material is Q235 plain carbon steel, its mechanical performance is good, meet the use requirement, at the same time also has a good stamping performance, suitable for positioning plate blanking.This design adopts the punching, blanking compound stamping with composite mold production.Flip chip type compound die structure is simple, can be directly used to press a lever device to push unloading.And so it is easy to operate security, can guarantee high productivity.And formechanization provides favorable conditions,
So the application is very extensive.And suit type composite structure is relatively complex, the safety coefficient is low, be determined by the above analysis of the parts production using inversion type composite mold production.
Positioning of progressive die parts are used to ensure the correct article material sent to and the right location in the mould.
Because the guide pin and pin structure is simple, convenient.And the mould adopts the article is expected, according to the mold concrete structure both economic benefit, control stock into the direction of the guide pin, fixed pin block is adopted in the feeding interval.
Discharge way, workpiece straightness is higher, the material thickness of 0.5 mm is relatively thin, unloading force is not big, because of the pressure unloading mold than rigid unloading mold is convenient, the operator can see the material in the mold to the dynamic, flexible and elastic unloading slabs workpiece clamp is, will not damage the surface, it can adopt flexible unloading.
The purpose of ejecting from waste die.Down the agency called the push rod, usually in the upper die;
By using inversion composite mold production, the elastic is adopted on the parts.
This design for selection of stamping equipment is open press the transverse feeding way is adopted, namely feeding from right to left.The side guide column formwork.Due to the front and around is not restricted, feeding and operation more convenient.And cannot use a floating die handle.
The use have waste, layout, blanking pieces according to the layout method of the calculation of material utilization, cross cutting, longitudinal cutting sheet metal utilization rate is 70%, and so the longitudinal cutting, cross cutting way of layout are available
Blanking force is in the process of blanking punch of sheet metal pressure, it is with the punch into the depth of the material.Usually said the blanking force refers to the maximum cutting force, it is one of the important basis for choose press and mould design.So you need to calculate the cutting force, discharge power, punching force, to determine the total pressure of a force.By querying the appendix: open type tilting press parameter table.Therefore, the primary press for: J23 series open-type inclinable press J23-4.
Working parts of blade size calculated this design USES the convex and concave mold processing.?
Design of concave and convex die parts appearance is relatively simple, and consider the processing according to actual condition, in order to meet the intensive strength and rigidity, intensive design into step, make assembly mould is convenient.
The design of the blanking die, die structure form is more, according to the shape can be divided into standard round concave die and tabular concave die, according to the structure is divided into integral type, insert or spell and combined.Also has the form of the blade flat blade and oblique blade.Generally use the integral and more set spell type, according to parts for a variety of geometric shapes, integral is applicable to small, convex and concave die set spell combined is mainly used for large convex and concave die.According to above analysis should use monolithic, all kinds of die of the concave die adopt wedm machining, arrange the location of the concave die in the die frame, according to the calculation of pressure center data, the pressure center and mold the handle.According to the actual production needs, the use of shape for the rectangular plate die.Concave mold adopts the whole die, outline all adopt CNC wedm can be a forming, the location of the installation of concave die in the die frame, in accordance with the data of pressure center, try to keep the pressure center and mold the handle.Calculate the size of the contour.There are three kinds of die the fixed way: the first is a hot and cold;The second is the low melting point alloy, epoxy resin casting and inorganic adhesive;The third is the screw fastening, pin location.Using the first don't drag, it is mainly used for cold extrusion of prestressed die.In the second, the fastening force is small, do not drag.Using a third, fastening force big, reliable positioning, strong commonality, easy installation and is suitable for various kinds of mold used, to ensure that the screw hole between, between the screw hole and pin hole and screw hole or pin hole and concave die cannot too close to the distance between the edge, otherwise it will affect the service life of mould.According to above analysis should use screw fastening, pin location.
Die with rectangular slab structure and directly through the screw, pin and the mold base is fixed on the fixed way.For salt pieces in mass production, considering the die wear and guarantee the quality of stamping, die blade, blade adopts straight cylindrical blade intensity is higher, the form after grinding blade size constant, used for blanking shape or high precision parts.
The design of the punch punch, punch length according to the specific structure of the mould, and fixed length according to wear plate, stripper plate thickness to decide.
The design of other parts due to large rubber allowed to carry the load, convenient installation, it is common in blanking die elastic element.
For discharge in the blanking of polyurethane rubber and synthetic rubber, rubber with excellent performance than synthetic rubber, polyurethane rubber so using polyurethane rubber, the shape of cylindrical rubber.
The purpose of design discharge part is after cutting clamp on the punch or on intensive parts or removing waste, are: the most common ways of discharging rigid discharge, pressure stripper plate.This design adopts the pressure discharge device, its are basic parts is a stripper plate, discharging screw and elastic element (spring or rubber)
The distance between holes and hole not too close, this will affect the service life of mould, and affect the stiffness and strength.Installation plate must consider when between holes and hole edge.
Is the role of fixed plate punch (intensive) fixed position on the mold base is correct, the fixed plate is rectangular or circular plate, a fixed plate with the punch (intensive) for the H7 / h6 cooperate, after installation, punch (intensive) shall be end face grinding flat with the fixed plate.
The function of upper and lower mold base is directly or indirectly, to install all parts of progressive die, and respectively connected to the press slide block and the table, to transfer pressure.Therefore, the strength and stiffness of the upper and lower die shoe is the major consideration.Mold base due to insufficient strength will produce damage, if the stiffness is insufficient, work would produce large elastic deformation, lead to the working parts of the mold and the guide parts rapid wear.
Guide pillar and guide sleeve structure and size are generally not directly by the selected from the standard, in the length of the column should be selected to ensure that die at the end of the job position, guide pin end face and the mold base on the top surface distance of not less than 10 ~ 15 mm.Working in the highest position, guide pin on the end face with the distance of not less than the lower end of the guide sleeve (10 ~ 20) mm, with precision of the guide pin and guide bush by table found to choose class II.
In the small die mold is generally on the die will handle is fixed on the press ram.The handle mould is as upper die parts connected to the press ram.For it is the basic requirement of: die and press the slider on the handle from a hole, right installation and reliable;Second, we must to die on the correct and reliable connection.
Two guide pin is located in the same side, strip along the two guide pin straight sent to determine and feeding from right to left, the guide pin on the back;Feed back once upon a time, the guide pin is installed on the left side.By blocking pin to control the feeding interval, in the upper die setting corresponding pilot hole, fixed to the concave in the template.
Stripper plate set up 4 discharge screw, the nominal diameter of 10 mm, threaded portion of the M8 x 8 mm.Discharge screw tail should leave enough space schedule and after discharging screw, should make the stripper plate is beyond punch face 1 mm, when there is error with screw mounting pads to adjust between the stripper plate.
Using a pin block installed on the die.Check standard JB/T7649.10-1994, selection of radius of 4 mm pin, beginning with the retaining pin the diameter of the fixed part and working part of the difference is very big, not weaken the strength of the die, and the manufacture is simple, easy to use.
Press check, according to the mould height, choose to press.Make the mould height is less than the selected press shut height.
Through the design, learn a lot from it not previously learned knowledge, the future will be more efforts to learn knowledge well, and work to lay a solid foundation for future employment.
定位板沖壓模具設(shè)計(jì)
本設(shè)計(jì)是沖裁復(fù)合模具的設(shè)計(jì)，利用沖壓成形工藝和模具設(shè)計(jì)的基本知識(shí)，對(duì)沖裁模具的模具工藝過(guò)程進(jìn)行給定分析、尺寸計(jì)算、數(shù)據(jù)存取，從而進(jìn)行模具設(shè)計(jì)。
常用冷沖壓模具的設(shè)計(jì)是根據(jù)零件尺寸、材料等批量生產(chǎn)過(guò)程逐步分析確定沖裁工藝設(shè)計(jì)和模具結(jié)構(gòu)，然后通過(guò)工藝設(shè)計(jì)和計(jì)算，計(jì)算沖擊力和壓力機(jī)。本設(shè)計(jì)主要介紹了模具的布局設(shè)計(jì)、進(jìn)給方式、排料方式、定位方法，計(jì)算了凸凹模的切削刃尺寸和公差，最后選擇零件設(shè)計(jì)，檢查并繪制了模具裝配圖。本設(shè)計(jì)通過(guò)工藝分析，在綜合考慮經(jīng)濟(jì)性、零件沖壓可制造性以及復(fù)雜性、精度等諸多因素的基礎(chǔ)上，對(duì)零件進(jìn)行精加工。
定位板材料為Q235普通碳素鋼，厚度0.5mm，批量生產(chǎn)。首先，對(duì)工件進(jìn)行結(jié)構(gòu)分析，對(duì)切削過(guò)程進(jìn)行分析、論證，進(jìn)行模具總體結(jié)構(gòu)設(shè)計(jì)方案，對(duì)主要零件進(jìn)行工藝規(guī)劃。必須進(jìn)行工藝計(jì)算、制造和一定的技術(shù)經(jīng)濟(jì)分析等。然后，對(duì)模具的設(shè)計(jì)和主要零件進(jìn)行制圖，并繪制出工作零件的總裝配圖和零件圖。
該沖裁件材料為Q235普通碳素鋼，其力學(xué)性能良好，滿足使用要求，同時(shí)具有良好的沖壓性能，適用于定位板沖裁。倒裝片式復(fù)合模結(jié)構(gòu)簡(jiǎn)單，可直接用于壓桿裝置推卸，操作方便，安全可靠，可保證高生產(chǎn)率。
因此應(yīng)用非常廣泛，而適合型復(fù)合結(jié)構(gòu)比較復(fù)雜，安全系數(shù)較低，通過(guò)以上分析確定采用倒置型復(fù)合模具生產(chǎn)的零部件。
級(jí)進(jìn)模零件的定位用來(lái)確保正確的物品材料送到模具和正確的位置。
由于導(dǎo)銷(xiāo)和銷(xiāo)結(jié)構(gòu)簡(jiǎn)單，使用方便，模具采用本品，根據(jù)模具混凝土結(jié)構(gòu)既經(jīng)濟(jì)效益，又控制庫(kù)存流向?qū)тN(xiāo)，進(jìn)料間隔采用固定銷(xiāo)塊。
出料方式，工件直線度較高，材料厚度為0.5mm比較薄，出料力不大，因?yàn)閴毫π读夏＞弑葎傂孕读夏＞叻奖?，操作者可以看到模具?nèi)的材料向動(dòng)態(tài)、柔性和彈性卸料。板坯工件夾持時(shí)，不會(huì)損壞表面，故可采用柔性卸料。
從廢模具中彈出的目的。下機(jī)構(gòu)稱(chēng)為推桿，通常在上模中；
通過(guò)倒裝復(fù)合模具生產(chǎn)，在零件上采用了彈性。
本設(shè)計(jì)選型沖壓設(shè)備為開(kāi)式壓力機(jī)，采用橫向進(jìn)給方式，即從右向左進(jìn)給，側(cè)導(dǎo)柱模板，由于前后不受限制，進(jìn)給和操作更加方便，而且不能使用浮動(dòng)模柄。
使用有廢料、排樣、沖裁件的排樣方法按材料利用率計(jì)算，橫切、縱切板材利用率為70%，因此縱切、橫切排樣方式是可行的。
沖裁力是沖裁過(guò)程中金屬板材所承受的壓力，它是隨著沖裁力進(jìn)入材料的深度，通常所說(shuō)的沖裁力指的是最大切削力，它是選擇沖裁機(jī)及模具設(shè)計(jì)的重要依據(jù)之一。g力、卸料力、沖裁力，確定總壓力的一個(gè)力。通過(guò)查詢(xún)附錄：開(kāi)式傾動(dòng)壓力機(jī)參數(shù)表。因此，主壓機(jī)為：J23系列開(kāi)式斜壓機(jī)J23-4。
工作部件的葉片尺寸計(jì)算本設(shè)計(jì)采用凸模和凹模加工。
凹凸模零件外觀設(shè)計(jì)相對(duì)簡(jiǎn)單，并根據(jù)實(shí)際情況考慮加工，以滿足強(qiáng)度和剛度的強(qiáng)化，集約化設(shè)計(jì)成步驟，使裝配模具方便。
沖裁模的設(shè)計(jì)中，模具結(jié)構(gòu)形式較多，根據(jù)形狀可分為標(biāo)準(zhǔn)圓形凹模和平面凹模。
開(kāi)題報(bào)告
學(xué)生姓名
準(zhǔn)考證號(hào)
專(zhuān) 業(yè)
數(shù)控加工與模具設(shè)計(jì)
指導(dǎo)教師
姓名
職 稱(chēng)
所在院系
南京工程學(xué)院
課題來(lái)源
自擬題目
課題性質(zhì)
工程設(shè)計(jì)
課題名稱(chēng)
定位板沖壓模設(shè)計(jì)
畢業(yè)設(shè)計(jì)的內(nèi)容和意義?
1．主要內(nèi)容：
（1）編寫(xiě)模具技術(shù)要求、訂料表；
（2）使用CAD軟件設(shè)計(jì)圖和若干零件圖的繪制。
（3）掌握沖壓的使用性能和用途。完成與模具相關(guān)資料的外文翻譯。
（4）掌握模具的使用情況，了解企業(yè)的模具設(shè)計(jì)流程和制造情況。掌握新軟件使用和模具加工的新工藝。
（5）利用模具分析進(jìn)行模具設(shè)計(jì)，優(yōu)化模具設(shè)計(jì)結(jié)構(gòu)。
2．畢業(yè)設(shè)計(jì)的意義：
沖壓模具是工業(yè)產(chǎn)品生產(chǎn)用的重要工藝裝備，在現(xiàn)代工業(yè)生產(chǎn)中，60%～90%的工業(yè)產(chǎn)品需要使用模具，模具工業(yè)已成為工業(yè)發(fā)展的基礎(chǔ)，許多新產(chǎn)品的開(kāi)發(fā)和研制在很大程度上都依賴(lài)于模具生產(chǎn)，特別是汽車(chē)、摩托車(chē)、輕工、電子、航空等行業(yè)尤為突出。目前，塑料制件在工業(yè)、日常生活各領(lǐng)域幾乎無(wú)處不在，所以掌握模具設(shè)計(jì)這一門(mén)技巧對(duì)于未來(lái)從事相關(guān)行業(yè)的發(fā)展極其重要。在本課題的設(shè)計(jì)過(guò)程中，我將模具設(shè)計(jì)采用傳統(tǒng)設(shè)計(jì)加軟件設(shè)計(jì)相結(jié)合。本設(shè)計(jì)開(kāi)始采用傳統(tǒng)設(shè)計(jì)方法對(duì)相關(guān)參數(shù)進(jìn)行計(jì)算、初步選擇沖壓設(shè)備、模架，再依照零件件的實(shí)際情況，進(jìn)行結(jié)構(gòu)設(shè)計(jì)。同時(shí)，在設(shè)計(jì)過(guò)程中，通過(guò)查閱大量資料、手冊(cè)、標(biāo)準(zhǔn)、期刊等，以及結(jié)合教材上的知識(shí)對(duì)沖壓模具的組成結(jié)構(gòu)、沖裁工藝力、排樣設(shè)計(jì)、壓力中心、壓力機(jī)的選擇有了系統(tǒng)的認(rèn)識(shí)，拓寬了視野，豐富了知識(shí)，為將來(lái)獨(dú)立完成模具設(shè)計(jì)積累了一定的經(jīng)驗(yàn)。
通過(guò)本次畢業(yè)設(shè)計(jì)，可以使我鍛煉和培養(yǎng)以下基本能力：
① 一般沖壓模設(shè)計(jì)的基本能力；
② 沖壓模所要注意的工藝分析及模具結(jié)構(gòu)的選擇；
③ 沖壓模的質(zhì)量分析及工藝改進(jìn)、模具結(jié)構(gòu)改進(jìn)設(shè)計(jì)的能力；
④ 了解模具設(shè)計(jì)的常用商業(yè)軟件以及同實(shí)際設(shè)計(jì)的結(jié)合。
另外，本次模具設(shè)計(jì)還鍛煉了我使用AUTOCAD繪圖軟件的技巧，使我在模具的結(jié)構(gòu)設(shè)計(jì)、工藝分析、模具零件的選材、熱處理、沖壓模具零件的制造以及資料檢索、英文翻譯等方面獲得綜合訓(xùn)練，為未來(lái)工作適應(yīng)期奠定堅(jiān)實(shí)的基礎(chǔ)。
文獻(xiàn)綜述
一、我國(guó)沖壓模具工業(yè)的發(fā)展現(xiàn)狀
模具是制造業(yè)的重要基礎(chǔ)工藝裝備，工業(yè)產(chǎn)品大批量生產(chǎn)和新產(chǎn)品開(kāi)發(fā)都離不開(kāi)模具，用模具生產(chǎn)制件所達(dá)到的(四高二低)高精度，高復(fù)雜程度，高一致性，高生產(chǎn)率和低耗能、低耗材，使模具工業(yè)在制造業(yè)中的地位越來(lái)越重要。模具品種繁多，共有10大類(lèi)，包括沖壓、塑料、橡膠、鑄造、鍛壓等，用于制造業(yè)中幾乎所有產(chǎn)品的生產(chǎn)，可見(jiàn)模具的服務(wù)范圍已包括國(guó)民經(jīng)濟(jì)的許多方面，現(xiàn)在模具技術(shù)已成為衡量一個(gè)國(guó)家產(chǎn)品制造水平的重要標(biāo)志之一，沒(méi)有高水平的模具就沒(méi)有高水平的產(chǎn)品已成為共識(shí)。 隨著產(chǎn)品更新?lián)Q代越來(lái)越快，新產(chǎn)品不斷涌現(xiàn)。新技術(shù)日新月異，模具的使用范圍已越來(lái)越廣，對(duì)模具的要求也越來(lái)越高了。
(1)模具產(chǎn)品將向著更大型、更精密、更復(fù)雜及更經(jīng)濟(jì)快速方向發(fā)展；模具生產(chǎn)將朝著信息化、無(wú)圖化、精細(xì)化、自動(dòng)化方向發(fā)展；模具企業(yè)將向著技術(shù)集成化、設(shè)備精良化、產(chǎn)品品牌化、管理信息化、經(jīng)營(yíng)國(guó)際化方向發(fā)展。
(2)模具CAD／CAE／CAM／PDM正向集成化、三維化、智能化、網(wǎng)絡(luò)化和信息化方向發(fā)展?？旖莞咚俚男畔⒒瘯r(shí)代將帶領(lǐng)模具行業(yè)進(jìn)入新時(shí)代。
(3)模具的質(zhì)量、周期、價(jià)格、服務(wù)四要素中，已有越來(lái)越多的用戶將周期放在首位，要求模具盡快交貨，因此模具生產(chǎn)周期將繼續(xù)不斷縮短。
(4)大力提高開(kāi)發(fā)能力，將開(kāi)發(fā)工作盡量往前推，直至介入到模具用戶的產(chǎn)品開(kāi)發(fā)中去，甚至在尚無(wú)明確的用戶對(duì)象之前進(jìn)行開(kāi)發(fā)(這需要在有較大把握和敢冒一定風(fēng)險(xiǎn)的情況下進(jìn)行)，變被動(dòng)為主動(dòng)。以及“你給我一個(gè)概念，我還你一個(gè)產(chǎn)品”的一站式服務(wù)模式都已成為發(fā)展趨勢(shì)。
(5)隨著模具企業(yè)設(shè)計(jì)和加工水平的提高，過(guò)去以鉗工為核心，大量依靠技藝的現(xiàn)象已有了很大變化。在某種意義上說(shuō)： “模具是一種工藝品”的概念正在被“模具是一種高新技術(shù)工業(yè)產(chǎn)品”所替代，模具“上下模單配成套”的概念正在被 “只裝不配"的概念所替代。模具正從長(zhǎng)期以來(lái)主要依靠技藝而變?yōu)榻窈笾饕揽考夹g(shù)。這不但是一種生產(chǎn)手段的改變，也是一種生產(chǎn)方式的改變，更是一種觀念的改變。這一趨向使得模具標(biāo)準(zhǔn)化程度不斷提高，模具精度越來(lái)越高，生產(chǎn)周期越來(lái)越短，鉗工比例越來(lái)越低，最終促使整個(gè)模具工業(yè)水平不斷提高。
(6)高速加工、復(fù)合加工、精益生產(chǎn)、敏捷制造及新材料、新工藝、新技術(shù)將不斷得到發(fā)展。
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二、研究的基本內(nèi)容，擬解決的主要問(wèn)題
我國(guó)沖壓模具行業(yè)與其發(fā)展需要和國(guó)外先進(jìn)水平相比，主要存在六個(gè)方面的問(wèn)題。
(1)發(fā)展不平衡，產(chǎn)品總體水平較低。雖然個(gè)別企業(yè)的產(chǎn)品己達(dá)到相當(dāng)高的水平，個(gè)別企業(yè)的部分產(chǎn)品已達(dá)到或接近國(guó)際水平，但總體來(lái)看，模具的精度、表面粗糙度、生產(chǎn)周期、壽命等指標(biāo)與國(guó)外先進(jìn)水平相比尚有較大差距。包括生產(chǎn)方式和企業(yè)管理在內(nèi)的總體水平與國(guó)外工業(yè)發(fā)達(dá)國(guó)家相比尚有10年以上的差距。
(2)工藝裝備落后，組織協(xié)調(diào)能力差。雖然部分企業(yè)經(jīng)過(guò)近幾年的技術(shù)改造，工藝裝備水平己比較先進(jìn)，但大部分企業(yè)工藝裝備仍比較落后。更主要的是我們的企業(yè)組織協(xié)調(diào)能力差，難以很好整合或調(diào)動(dòng)社會(huì)資源為我所用，從而就難以承接比較大的項(xiàng)目。
(3)大多數(shù)企業(yè)開(kāi)發(fā)能力弱。一方面是技術(shù)人員比例低、水平不夠高，另一方面是科研開(kāi)發(fā)投入少，更重要的是觀念落后，對(duì)開(kāi)發(fā)不夠重視。
(4)管理落后更甚于技術(shù)落后。技術(shù)落后往往容易看到，管理落后有時(shí)卻難以意識(shí)到。國(guó)內(nèi)外模具企業(yè)管理上的差距十分明顯，管理的差距所帶來(lái)的問(wèn)題往往比技術(shù)上的差距更為嚴(yán)重。
(5)市場(chǎng)需求旺盛，生產(chǎn)發(fā)展一時(shí)還難以跟上，供需矛盾一時(shí)還難以解決，供不應(yīng)求的局 面還將持續(xù)一段時(shí)間，特別是在中高檔產(chǎn)品方面矛盾更為突出。
(6)體制和人才問(wèn)題的解決尚待時(shí)日。在社會(huì)主義市場(chǎng)經(jīng)濟(jì)中，在經(jīng)濟(jì)全球化的過(guò)程中，競(jìng)爭(zhēng)性行業(yè)，特別是像模具這樣依賴(lài)于特殊用戶，需單件生產(chǎn)的行業(yè)，許多企業(yè)目前的體制和經(jīng)營(yíng)機(jī)制仍舊很難適應(yīng)多變的市場(chǎng)。人才的數(shù)量和素質(zhì)水平也跟不上行業(yè)的快速發(fā)展。雖然各地都在努力解決這兩個(gè)問(wèn)題，但要得到較好解決尚待時(shí)日。
展望未來(lái)，由于國(guó)際、國(guó)內(nèi)宏觀環(huán)境總體良好，國(guó)內(nèi)沖壓模具各主要用戶行業(yè)仍將持續(xù)以較快速度發(fā)展，塑料模具也必將持續(xù)高速發(fā)展。目前存在的主要問(wèn)題通過(guò)國(guó)內(nèi)外交流與合作，通過(guò)全行業(yè)的共同努力，通過(guò)各方面的共同支持，定會(huì)逐漸得到較好的解決。
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三、研究步驟、方法、工作進(jìn)度
零件設(shè)計(jì)、工藝性分析、確定模具結(jié)構(gòu)、沖裁工藝力的計(jì)算、壓力中心的確定、模具結(jié)構(gòu)件設(shè)計(jì)、沖壓設(shè)備選擇、繪制模具設(shè)計(jì)圖紙。
1.零件設(shè)計(jì)，利用軟件AutoCAD進(jìn)行設(shè)計(jì)并完成尺寸及公差等技術(shù)要求的標(biāo)注，繪制模具圖。
2.沖壓設(shè)備選擇，確定的壓力公稱(chēng)壓力，并計(jì)算沖裁力，通過(guò)公稱(chēng)壓力的校核、滑塊行程次數(shù)的校核、模柄的校核、安裝部分的尺寸校核、閉合高度的校核結(jié)合沖壓設(shè)備的資料確定沖壓設(shè)備的型號(hào)。
3.模架，通過(guò)上、下模座的強(qiáng)度和剛度的考慮、定位導(dǎo)向部件、卸料推出機(jī)構(gòu)等的初步估算，確定使用模架的型號(hào)。
4.對(duì)零件進(jìn)行結(jié)構(gòu)設(shè)計(jì)，計(jì)算出工作尺寸。
5.對(duì)沖裁力進(jìn)行計(jì)算，進(jìn)行凸凹模、落料凹模、沖孔凸模等的設(shè)計(jì)，
6.其他零部件的設(shè)計(jì)。
7.零部件加工工藝制定，結(jié)合現(xiàn)代加工手段，制定最符合經(jīng)濟(jì)效益的加工工藝。
8.完成整套模具的二維工程圖的繪制。
參考文獻(xiàn)
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