第42卷第7期 Vol. 42No. 7
假压技木
FORGING & STAMPING TECHNOLOGY
连接件级进模排样及模具结构设计闫华军12，臧其其"，刘玉忠12，张双杰1,2
(1．河北科技大学材料科学与工程学院河北省材料近净成形技术重点实验室，河北石家庄050018
2.河北省精密冲裁工艺与模具工程技术研究中心，河北沧州061500）
2017年7月 Jul.2017
摘要：针对某连接件进行了冲压工艺分析，通过比较两种排样方法，最终优化设计了由5个冲裁、1个压型、3个弯曲和1个切断工序构成的排样图，设计了双侧载体，材料利用率达到48.9%。圆形小直径孔冲裁凸模设计成过渡台肩结构，提升了模其强度，设计了快换式固定方式，凸模工作部分添加保护套，异形冲裁凸模采用单侧挂台方式定位，凹模均采用回模摊块结构。压型凸模安装在卸料板上，保证了压型深度和精度。复杂Z字形弯曲，采用向上弯曲和向下弯曲两步弯曲结构，向上弯曲凸模安装在卸料板上，保证了弯曲精度和正常卸料、压边。
关键词：连接件；级进模；排样；模具结构；冲压 DOI: 10. 13330/j. issn. 1000-3940. 2017. 07. 020
中图分类号：TG386.2
文献标识码：A
文章编号：1000-3940（2017）07-0107-06
Layoutandstructuredesignonprogressivedieforconnector
Yan Huajun'-2, Zang Qiqi', Liu Yuzhong'-2, Zhang Shuangjiel-2
( 1. Hebei Key Lahoratory of Material Near-net Forming Technology , School of Materials Science and Engineering, Hebei
University of Secience and Technology , Shijiazhuang 050018 , China ;
2. Hebei Engineering Technology Research Center of Precision Punching Process and Die, Cangzhou 061500, China)
Abstract: The stamping process analysis was carried out for a connector. By comparing the two layout methods, a layout chart consisted of five blanking steps, one profiling step, three bending steps and one cutting step was designed and optimized, the bilateral carier was designed, and the material utilization reached 48. 9% . However, piercing punches with small apertures were designed as transitional shoulder structures to enhance the strength of die. The quick-change fixing type was designed, the working part of punch was added the protective sleeve, and the abnormity piercing punches were positioned by one-side hanging table. The dies were designed as an insert block structure. Then, the profiling punch was installed on the unloading plate to ensure the depth and precision of profiling. Furthermore, the complex Z-shaped bending adopts two-step bending structures of upward bending and downward bending, the upward bending punches were installed on the unloading plate, and the accuracy of bending and the correctness of discharge and blank holder could be ensured. Key words : connector; progressive die; layout design; die structure; stamping
局部冲裁工序，其弯曲工序为复杂的4边弯曲，包括
1制件的工艺分析
图1为某连接件。该制件为金属冲压件，其冲
压工序较复杂，年产量为几十方件。制件材料为08F 钢，料厚为0.8mm，具有较好的冲压性能。制件上有多个孔（包括10个不同尺寸的圆孔和1个矩形孔）、1个压型槽和4个弯曲边，弯曲边周围需多个
收稿日期：20170126；修订日期：20170411
基金项目：河北省高等学校自然科学研究青年基金项目（QN201629）；河北科技大学理工学院教研项目（2015Z01，ZX2016Y02）
作者简介：国华军（1978-），男，博士，副教投 E-mail: yanhj22@ 163. com
万方数据
向上弯曲、带角度弯曲和向下弯曲等。该制件多个位置的尺寸有精度要求，制件各工序尺寸较小，采用善通冲压工序，难以保证制件形状和位置精度。级进模具有工序紧凑、制件精度高和生产效率高等优点，但级进模设计复杂，模具加工成本较高，因此，适用于生产精度要求高、大批量生产的冲压件[1-2]。图1 所示制件具有结构复杂、冲压精度要求较高和批量生产特点，适合于采用级进模进行冲压生产。
N
排样设计
排样设计是级进模设计的第1步，也是关键步
骤。排样设计需综合考虑制件形状、精度要求以及