不锈钢灯罩双向拉伸级进模设计  

Design of Two-Way Drawing Progressive Die for the Stainless Steel Lamp Cover

作　　者：邹泽昌[1] 谢宇玲[1] Zou Zechang;Xie Yuling(School of mechanical and itelligent manufacturing,Fujian Chuanzheng Communications,Fuzhou,Fujian 350007,CHN)

机构地区：[1]福建船政交通职业学院机械与智能制造学院,福建福州350007

出　　处：《模具制造》2021年第12期15-19,共5页Die & Mould Manufacture

基　　金：福建省中青年教师教育科研项目(科技类)(编号JAT170949)。

摘　　要：为了降低原材料的浪费,应适当减小级进模具的步距。在成形模的凸、凹模上使用大功率的氮气弹簧,以加强成形工序模的压边力,弥补由压边圈尺寸减小导致压边力的损失,以消除在成形时制件表面产生的皱纹。为了冲出制件上尺寸为R2mm的圆弧角,防止拉裂制件,分3个拉伸工序冲压圆弧角。将拉伸圆筒形特征的工序模反向设计,成形工序模正向设计,以便于冲出合格的制件。为了消除制件表面的刮花,将凸、凹模等成形零件进行镀钛处理,增加其光滑度和耐磨性。将凸、凹模设计成直身,而不是沉头结构,当需要拆装模具时,可以直接从上、下模座上松开螺栓,取出模具零件即可,而不需要拆开整副模具。In order to reduce the waste of raw materials, the step distance of progressive die should be appropriately reduced.When the step distance decreases, the size of the blank holder decreases and the blank holder force decreases. In the process of deep drawing forming, the surface of the product is often prone to wrinkles and other undesirable phenomena.In order to eliminate the wrinkles on the surface of the product, the forming process is divided into several times to form, and the wrinkles on the product are eliminated through the expansion of the forming process.And the high-power nitrogen spring is used on the concave die of the forming die.To strengthen the blank holding force of the forming process die. Compensate for the loss of blank holder force caused by the reduction of blank holder size to eliminate the wrinkles caused by drawing. In order to eliminate the scratches on the surface of the product, the punch and matrix forming parts are treated with titanium plating to increase their wear resistance.The punch and matrix is designed into a straight body, rather than a countersunk head structure. When the die needs to be disassembled, the bolt can be loosened directly from the upper and lower die seat plate, and the die parts can be removed, without the need to open the whole die.

关 键 词：灯罩 级进模具 双向拉伸 压边力 皱纹 

分 类 号：TG385.2[金属学及工艺—金属压力加工]