CN103736814A - 一种切边切废料的模具结构 - Google Patents
一种切边切废料的模具结构 Download PDFInfo
- Publication number
- CN103736814A CN103736814A CN201310650143.2A CN201310650143A CN103736814A CN 103736814 A CN103736814 A CN 103736814A CN 201310650143 A CN201310650143 A CN 201310650143A CN 103736814 A CN103736814 A CN 103736814A
- Authority
- CN
- China
- Prior art keywords
- cutter piece
- trimming
- patrix
- edge
- die
- Prior art date
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- 238000009966 trimming Methods 0.000 claims description 64
- 239000002699 waste materials Substances 0.000 claims description 63
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000001308 nitrogen Substances 0.000 claims description 6
- MDFFNEOEWAXZRQ-UHFFFAOYSA-N nitrogen group Chemical group 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[N] MDFFNEOEWAXZRQ-UHFFFAOYSA-N 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract 2
- 239000011230 binding agents Substances 0.000 description 12
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Abstract
本发明涉及冲压模具领域，尤其涉及一种切边切废料的模具结构，包括上模（1）、上模切边刀块（3）、上模带废料刀的切边刀块（4）、下模废料刀（8）和下模，还包括在所述上模切边刀块（3）上模带废料刀的切边刀块（4）之间安装的过渡刀块(2)和驱动所述过渡刀块(2)的安装在所述上模(1)上的驱动装置。这样的设计解决了会在刀块高度差处存在的毛刺，使零件的切边质量得到很大程度的提升，从结构上实现废料在压料状态下切断，使得废料切断的质量提高，毛刺得到控制。
Description
一种切边切废料的模具结构
技术领域
[0001] 本发明属于冲压模具领域，尤其涉及一种切边切废料的模具结构。
背景技术
[0002] 在汽车车身零件的冲压模具设计中，对于切边模的设计在切边刀块、废料刀块的布置上一直遵循一个333原则，即切边刀的吃入深度为3mm、上模切边刀与下模废料刀的避让空间为3mm、废料刀的吃入深度为3mm。这就会在模具结构上决定上模的切边刀与上模带废料刀的切边刀块在接口处有3mm的高度差。
[0003] 此种方案存在的缺陷如下。
[0004] 1、由于上模的切边刀块和上模带废料刀的切边刀块在搭接口处存在高度差，会导致切边的时候两块切边刀不同时吃入，即存在同一条边的先后切断，在切口处会存在接口毛刺和切屑等质量缺陷。
[0005] 2、废料的切断是在非压料状态下进行的，因此会产生大量的切屑和废料毛刺大的缺陷。切屑会影响产品的表面质量和模具寿命。
发明内容
[0006] 本发明的目的在于提供一种旨在解决上述问题的切边切废料的模具结构。
[0007] 本发明是这样实现的，一种切边切废料的模具结构，包括上模、下模、上模切边刀块、上模带废料刀的切边刀块和下模废料刀，还包括在所述上模切边刀块和上模带废料刀的切边刀块之间安装的过渡刀块和驱动所述过渡刀块的安装在所述上模上的驱动装置。
[0008] 工作状态下上模的切边刀块、过渡刀块、带废料刀的切边刀块属于光顺平滑过渡，不存在避让下模废料刀的3mm的高度差。突破了原来一直遵循的切边结构333原则，实现了 303的运动结构，即上模通过过渡刀块的上下运动实现在压料状态下切断废料。
[0009] 由于切边刀块间过渡高度差的取消，使得零件的周圈实现了同时切断，解决了原来会在刀块高度差处存在的毛刺，使零件的切边质量得到很大程度的提升，从结构上实现废料在压料状态下切断，使得废料切断的质量提高，毛刺得到控制。在压料的状态下实现切断，有效控制切断的时候切屑的产生，更加有效的保护产品质量和模具寿命。由于同时切断有效控制了铁屑在刀块过渡区集中而损伤模具压料面和零件表面质量的问题。
[0010] 本发明的进一步技术方案是:所述过渡刀块一端与上模切边刀块和上模带废料刀的切边刀块平齐。保证切边质量。
[0011] 本发明的进一步技术方案是:所述过渡刀块与下模废料刀相契合。保证零件废料在压料状态下切断，使得切断质量提高，减小了带废料的机率，更有利与废料的自动滑落。
[0012] 本发明的进一步技术方案是:所述驱动装置采用氮气弹簧。提高冲压件质量，保证冲压件质量稳定，提高劳动生产率，降低产品成本。使用寿命长、安全、可靠，安装和维修方便、简单。保证在所述上模的继续下行的时候所述过渡刀块向上运动，同时对废料保持一定的压力。[0013] 本发明的进一步技术方案是:增加在所述过渡刀块外侧安装的过渡刀块导板，所述过渡刀块导板与所述上模固定连接。由于冲压模具工作工程中的受力较大，过渡刀块使用次数过多以后会产生偏移。增加过渡刀块导板后使得过渡刀块不会产生位移，增加冲压产品的质量。
[0014] 本发明的有益效果是:在切边刀块与带废料刀的切边刀块中间增加了过渡刀块；工作状态下上模的切边刀块、过渡刀块、带废料刀的切边刀块属于光顺平滑过渡，不存为避让下模废料刀的3mm的高度差。突破了原来一直遵循的切边结构333原则，实现了 303的运动结构，即上模通过过渡刀块的上下运动实现在压料状态下切断废料。由于切边刀块间过渡高度差的取消，使得零件的周圈实现了同时切断，解决了原来会在刀块高度差处存在的毛刺，使零件的切边质量得到很大程度的提升从结构上实现废料在压料状态下切断，使得废料切断的质量提高，毛刺得到控制。在压料的状态下实现切断，有效控制切断的时候切屑的产生，更加有效的保护产品质量和模具寿命。同时切断有效控制了铁屑在刀块过渡区集中而损伤模具压料面和零件表面质量的问题。零件废料在压料状态下切断，使得切断质量提高，减小了带废料的机率，更有利与废料的自动滑落。设备简单可靠，精确度高，减少人工，提高效率。
附图说明
[0015] 图1是本发明一种切边切废料的模具结构的实际应用图。
[0016] 图2是图1中A区域的放大图。
[0017] 图3是本发明的截面图。
[0018] 图4是本发明的另一截面图。
[0019] 附图标记:1.上模、2.过渡刀块、3.上模切边刀块、4.上模带废料刀的切边刀块、
5.过渡刀块导板、7.氮气弹簧、8.下模废料刀。
具体实施方式
[0020] 图1至图4示出了本发明提供的一种切边切废料的模具结构，包括上模1、上模切边刀块3、上模带废料刀的切边刀块4、下模废料刀8和下模，还包括在所述上模切边刀块3和上模带废料刀的切边刀块4之间安装的过渡刀块2和驱动所述过渡刀块2的驱动装置。
[0021] 所述过渡刀块2 —端与上模切边刀块3和上模带废料刀的切边刀块4平齐。所述过渡刀块2与下模废料刀8相契合。
[0022] 所述驱动装置可以为电磁装置和氮气弹簧等，这里采用所述氮气弹簧7。在所述过渡刀块2的外侧安装所述过渡刀块导板5，所述过渡刀块导板5与上模I固定连接，保证所述过渡刀块2水平位置不偏移。
[0023] 所述过渡刀块2在自由状态的时候与所述上模切边刀块3和所述上模带废料刀的切边刀块4均处于光顺平滑的连接状态，且所述过渡刀块2 —端与上模切边刀块3和上模带废料刀的切边刀块4平齐，所述上模切边刀块3和所述上模带废料刀的切边刀块4开始工作的时候，所述上模切边刀块3、所述上模带废料刀的切边刀块4和所述过渡刀块2同时吃入，首先保证了零件切边的质量，切边完成后所述上模I继续下行，所述过渡刀块2在所述下模废料刀8和所述氮气弹簧7的作用下开始向上运动，即实现所述上模切边刀块3(现在是所述过渡刀块2)和所述下模废料刀3mm的避让。所述过渡刀块2和所述下模废料刀8开始压紧废料区域，废料刀在废料压料的状态下切断废料。
[0024] 以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
Claims (5)
1.一种切边切废料的模具结构，包括上模(I )、上模切边刀块(3)、上模带废料刀的切边刀块(4)、下模废料刀(8)和下模，其特征在于:还包括在所述上模切边刀块(3)和上模带废料刀的切边刀块(4)之间安装的过渡刀块(2)和驱动所述过渡刀块(2)的安装在所述上模(I)上的驱动装置。
2.根据权利要求1所述的一种切边切废料的模具结构，其特征在于:所述过渡刀块(2)一端与上模切边刀块(3)和上模带废料刀的切边刀块(4)平齐。
3.根据权利要求2所述的一种切边切废料的模具结构，其特征在于:所述过渡刀块(2)与下模废料刀(8)相契合。
4.根据权利要求3所述的一种切边切废料的模具结构，其特征在于:所述驱动装置为氮气弹簧(7)。
5.根据权利要求4所述的一种切边切废料的模具结构，其特征在于:还包括在所述过渡刀块(2)外侧安装的过渡刀块导板(5)，所述过渡刀块导板(5)与所述上模(2)固定连接。
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