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1、(完整)冲压模具外文文献(完整)冲压模具外文文献 编辑整理：尊敬的读者朋友们：这里是精品文档编辑中心，本文档内容是由我和我的同事精心编辑整理后发布的，发布之前我们对文中内容进行仔细校对，但是难免会有疏漏的地方，但是任然希望（(完整)冲压模具外文文献）的内容能够给您的工作和学习带来便利。同时也真诚的希望收到您的建议和反馈，这将是我们进步的源泉，前进的动力。本文可编辑可修改，如果觉得对您有帮助请收藏以便随时查阅，最后祝您生活愉快 业绩进步，以下为(完整)冲压模具外文文献的全部内容。Progressive DieProgressive die has the following advantages
2、1) Class into the module is multi-process dies， in a mold can include punching， bending, forming and drawing a variety of multipass process, with a higher than the compound die labor productivity, but also can produce quite complex stampings;2） Progressive Die Operation Security, because staff do no
3、t have to enter the danger zone；3) Class Progressive Die Design, The process can be distributed。 Do not focus on one station , there is no Compound Dies Minimum wall thickness” problem。 Therefore relatively high mold strength, longer life expectancy。4) Progressive Die Easy Automation That is easy to
4、 Automatic feeding ,Autoout of parts Automatic lamination；5) Class Progressive die can be High-speed press production， because the workpiece can be directly down the drain and waste；6） Use Class Progressive die can be Reduce the presses， semifinished products to reduce transport. Workshop area and s
5、torage space can be greatly reduced。Progressive Dies The disadvantage is that complex structure， manufacturing of high precision， long life cycle and high costs. Because of progressive die is a To the workpiece， the shape of successive out, each punch has a positioning error， is more difficult to ma
6、intain stability in the workpiece， the relative position of the one-off appearance。 However， high precision parts， not all contours of all, the shape relative position requirements are high， you can be washed in the shape of the same station， on the relative position of demanding the same time， out
7、of this part of the profile， thus ensuring precision parts.First, process pieces of carry approach Processes and the determination of nesting is of the progressive die design a very important link. In considering the processes and nesting, we must first consider the process method of carriage parts。
8、Bending parts there are two main ways to carry:1) Blanking station in the upper and lower pressure, so that after blanking process pieces and repressed into the material inside。 Generally only about access to material thickness of thel/3， but has enough to process pieces with the material sent to th
9、e next process， within the workpiece in the working procedure have all been pressed into the material inside the remnant。 Beyond that， after process pieces are washed curved shape, until the last escape from the Strip。 The drop in this way conveying pairs of thick material is very effective， because
10、 the thin material easy to bagging, wrinkles， or bent， thus blanking out the flat blank song, not with the advance of material and stops in a station caused the accident。Simple blanking progressive die, sometimes in order to ensure that the workpiece is flat and has also taken off after the refeed m
11、aterials put pressure on people within the approach， in the latter process to workpiece pushed。 Because blanking after being repressed into the workpiece can not be material in the thickness direction all entered the hole, so in the blanking die station after the plane, to the corresponding lower。2）
12、 Rush to need to bend some of the surrounding material, the rest of the parts remain in the article （Volume）Materials， there is no separation。 As the hub of to the material， You may need to spend a long Progress in distance delivery. Second, the principle of work arrangements1)Blanking the workpiece
13、 to avoid the use of complex shapes convex mode。 Rather more than the increase a process to simplify the convex mode shapes.2)”Ushaped pieces can be divided into two out, as Figure7-76As shown in order to avoid material stretched， out of Workpiece dimensions vary。 Figure776 U shaped pieces of curved
14、 process3）In the asymmetric bending, the workpiece slide easily can be shown in Figure7-77shown with teeth inserts were inserts into the bend Convex Mold and roof in order to prevent the workpiece sliding。 The main disadvantage of this method is the a)After the procedure b）pre-process workpiece plan
15、e with prints. Also available on the heat treatment before Convex Mold and roof preperforated, after tryout after the sheet metal through the tryout will be two holes without sliding inlay Ping 。 If sliding is used tooth inserts。 Figure7-77 To prevent the sheet metal bending generated when sliding 1
16、 Bending Convex Die 2- Cut off Convex Die 3 Roof 4 With teeth inserts4） Bending or deep drawing of the workpiece， highquality plastic surgery procedures should be added。5) Waste, such as continuous, should increase the cutting process， using waste cutter cut。 Automatic press itself, as some waste cutter, you do not have to die to consider.6) Can be countersunk head hole
