硅钢片冲裁模具设计及线切割加工解析

硅钢片冲裁模具设计及线切割加工

（陕理工机械工程学院学院机机械设计制造及其自动化专业072班级，陕西汉中 723003）

指导老师：

【摘要】本次设计了一套冲孔、落料的模具。经查阅资料，首先要对零件进行工艺分析，经过工艺分析和对比，通过冲裁力、顶件力、卸料力等的计算，确定压力及的型号，再分析对冲裁件加工的模具，适用类型选择所设计的模具，得出将设计的模具的类型后，将模具的可工作零部件设计过程表达出来。

在第一部分，主要叙述了冲压模具的发展情况，说明了模具的重要性与本次设计的意义，接着是对冲压件的工艺分析，完成工艺方案的确定。第二部分是对零件排样图的设计，完成材料利用率的计算，在进行冲裁工艺力的计算及冲裁模具工作部分的设计计算，对选择冲压设备提供依据，最后对主要零部件的设计和标准的选择，为本次模具的绘制和模具的成形提供依据，以及装备图各尺寸提供要求。通过前面的设计方案，画出模具的零件图和装配图。

在后面又对模具进行了三维建模，选择采用电火花线切割对模具中的凸凹模进行了仿真加工，分别介绍了电火花线切割的加工原理，电火花线切割的加工特点，电火花线切割的加工机床，并且在选择采用3B代码程序的进行数控编程，确定了间隙补偿量，走丝速度，以及工作液的选择，最后编程出走到路线的3B代码。在最后一部分，采用UGNX6.0，对凸凹模的外形轮廓进行了线切割仿真。

【关键词】硅钢片；模具设计；三维建模；线切割；仿真；寿命

Die design and silicon steel sheet cutting line

（Grade07,Class2,MajorMechanical Design, Manufacturing and Automation，Mechanical Design, Manufacturing and Automation Dept.，Shaanxi University of Technology，Hanzhong 723003，Shaanxi）Abstract：This design carries on blanking, the piercing progressive dies design. The article has briefly outlined the press die at present development condition and the tendency.It has carries on the detailed craft analysis and the craft plan determination to the product.According to general step which the press die designs, calculated and has designed on this set of mold main spare part, for example: The punch, the matrix, the punch plate, the backing strip, the matrix plate, stripper plate, stop pin, pilot pin and so

on.The die sets uses the standard mould bases, has selected the appropriate press equipment.In the design has carries on the essential examination computation to the working elements and the press specification.In addition, this die employs the finger stop pin and the hook shape stop pin.The mold piercing and blanking punch are fixed with the different plates separately in order to coordinate the gap cenveniently; The piercing matrix and blanking matrix are fixed by the overall plate.Fell in the blanking punch is loaded by pilot pin, guarante the relative position of the hole and the contour , increase the processing precision.This

structure may guarantee the die move reliably and the request of mass production.

In the back and three-dimensional modeling of mold, choose WEDM mold punch and die in the simulation process, introduced the principle of EDM wire cutting process, the processing characteristics of WEDM, EDM wire Cutting machine tools, and 3B in the choice of using numerical control programming code for the program to determine the clearance compensation, and take the wire speed, and the choice of working fluid, and finally walked out of line 3B programming code. In the final part, the use of UGNX6.0, and contour of the punch and die cutting simulation carried out.

Keywords:Silicon steel; mold design; three-dimensional modeling; line cutting;simulation; work life.