论文部分内容阅读
图1所示的承力隔架所用材料是Q235钢,料厚δ=2.0mm。这是一种典型的锐角U形件。成形该类零件的弯曲模通常有两种设计方法:一是采用斜楔式弯曲模结构,即由对称的两斜楔推动凸模水平移动,同时对工件的两侧边进行弯曲成形,这种模具结构复杂,且要求较大的工作台面尺寸;二是采用摆动式弯曲模结构,如双转辊弯曲模,此模具结构紧凑,弯曲成形力大,可以高效优质地弯曲90°或锐角U形件。 1.模具结构 承力隔架的弯曲成形采用图2所示的双转辊弯曲模。该模具采用导柱导套式的标准模架,凸模6和凹模8共同完成工件两侧边的弯曲成形;弹簧13为凹模8回复到起始位置提供拉力;定位板7和限
The material used for the spacer shown in Figure 1 is Q235 steel with a material thickness of δ = 2.0 mm. This is a typical acute angle U-shaped pieces. There are generally two design methods for forming the bending molds of this kind of parts: one is the wedge bending mold structure, that is, the convex mold is moved horizontally by two symmetrical two wedges and the two sides of the workpiece are bent and shaped at the same time The mold structure is complex, and requires a larger workbench size; the second is the use of oscillating bending mold structure, such as dual-roll bending mold, the mold structure is compact, bending forming force, you can effectively and efficiently bend 90 ° or acute U-shaped Pieces. 1. Die structure Bending of the load-bearing frame used in Figure 2 shows the double-roll bending die. The mold guide column guide sleeve-type standard mold, punch 6 and die 8 work together to complete the bending of both sides of the workpiece; the spring 13 is a die 8 back to the starting position to provide tension; positioning plate 7 and limit