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CN203495114U - 一种齿轮轴锻模的下模 - Google Patents

一种齿轮轴锻模的下模 Download PDF

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CN203495114U
CN203495114U CN201320466493.9U CN201320466493U CN203495114U CN 203495114 U CN203495114 U CN 203495114U CN 201320466493 U CN201320466493 U CN 201320466493U CN 203495114 U CN203495114 U CN 203495114U
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lower mould
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刘均
沈运海
沈祁阳
蒲焕章
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HENGYANG PENGRUN FORGING CO Ltd
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Abstract

本实用新型公开了一种脱模斜度小，脱模速度快的齿轮轴锻模的下模；它由下模主件、下模镶件、下模垫板、下模顶杆组成；所述下模主件置于所述下模垫板上，所述下模主件上设有圆形通孔，所述圆形通孔的上部分设有两个台阶；所述下模镶件位于所述下模主件的圆形通孔内，所述下模镶件的上端面有一锥形凹槽，与所述下模主件圆形通孔的台阶部分共同形成锻造型腔；所述下模垫板上设有通孔，所述下模顶杆穿过通孔作用于所述下模镶件上，使下模镶件在圆形通孔内作上下运动。通过下模顶杆作用于下模镶件上将锻坯顶出下模，减小了其脱模斜度，提高了脱模速度，从而使模具型腔寿命延长，提高了生产效率。

Description

一种齿轮轴锻模的下模
技术领域
本实用新型涉及一种锻模组件，尤其是一种齿轮轴锻模的下模。 
背景技术
传统锻造方法中的锻模由上模、下模组成，脱模斜度需大于5°才能方便脱模，且脱模速度慢。现需加工一种汽车发动机用的齿轮轴零件（见图1），该零件分上中下三段圆台，结构简单，但中段要求只能带有0.5°脱模斜度，三段同轴度要求高。齿轮轴锻坯外形尺寸大，客户要求后续加工余量少，采用传统的锻造模具不仅满足不了客户需求，且生产效率低，材料浪费大，成本高；另外，由于脱模慢，模具型腔寿命也较低。 
实用新型内容
本实用新型要解决的技术问题是提供一种脱模斜度小，脱模速度快的齿轮轴锻模的下模。 
本实用新型的技术方案是：一种齿轮轴锻模的下模，它由下模主件、下模镶件、下模垫板、下模顶杆组成；所述下模主件置于所述下模垫板上，所述下模主件上设有圆形通孔，所述圆形通孔的上部分设有两个台阶；所述下模镶件位于所述下模主件的圆形通孔内，所述下模镶件的上端面有一锥形凹槽，与所述下模主件圆形通孔的台阶部分共同形成锻造型腔；所述下模垫板上设有通孔，所述下模顶杆穿过通孔作用于所述下模镶件上，使下模镶件在圆形通孔内作上下运动。 
本实用新型进一步的技术方案是：所述下模主件由下模接垫、下模体组成，所述下模接垫和所述下模体上均设有圆形型腔，通过连接紧固件同轴连接，形成一个整体。 
本实用新型再进一步的技术方案是：所述下模体下端面设有凸台；所述下模接垫上端面设有凹槽，下端面设有凸缘，圆形通孔内设有台阶；所述下模镶件下端面设有凸台；所述下模体和所述下模镶件均为模具钢。 
本实用新型的有益效果：由于采用组合形式，其结构简单、制作容易、维修方便；通过下模顶杆作用于下模镶件上将锻坯顶出下模，减小了其脱模斜度，提高了脱模速度，从而使模具型腔寿命延长，提高了生产效率；仅下模体与下模镶件采用模具钢，模具成本大幅下降，减少材料浪费，降低生产成本。 
附图说明
图1为汽车发动机用的锻造齿轮轴零件示意图； 
图2为本实用新型的结构示意图。
具体实施方式
如图1所示，本实用新型提供了一种齿轮轴锻模的下模，它由下模主件7、下模镶件4、下模垫板5、下模顶杆6组成；所述下模主件7置于所述下模垫板5上，所述下模主件7上设有圆形通孔，所述圆形通孔的上部分设有两个台阶；所述下模镶件4位于所述下模主件7的圆形通孔内，所述下模镶件4的上端面有一锥形凹槽，与所述下模主件7圆形通孔的台阶部分共同形成锻造型腔9；所述下模垫板5上设有通孔，所述下模顶杆6穿过通孔作用于所述下模镶件4上，使下模镶件4在圆形通孔内作上下运动。 
所述下模主件7由下模接垫1、连接紧固件2、下模体3组成；所述下模接垫1和所述下模体3上均设有圆形型腔8，通过所述连接紧固件2同轴连接，形成一个整体；所述下模体3下端面设有凸台； 所述下模接垫1上端面设有凹槽，下端面设有凸缘，圆形通孔内设有台阶；所述下模镶件下4端面设有凸台；所述下模体3和所述下模镶件4均为模具钢，其余部件均为非模具钢制造。 

Claims (4)

1.一种齿轮轴锻模的下模，其特征在于：它由下模主件、下模镶件、下模垫板、下模顶杆组成；所述下模主件置于所述下模垫板上，所述下模主件上设有圆形通孔，所述圆形通孔的上部分设有两个台阶；所述下模镶件位于所述下模主件的圆形通孔内，所述下模镶件的上端面有一锥形凹槽，与所述下模主件圆形通孔的台阶部分共同形成锻造型腔；所述下模垫板上设有通孔，所述下模顶杆穿过通孔作用于所述下模镶件上，使下模镶件在圆形通孔内作上下运动。
2.根据权利要求1所述的一种齿轮轴锻模的下模，其特征在于：所述下模主件由下模接垫、下模体组成，所述下模接垫和所述下模体上均设有圆形型腔，通过连接紧固件同轴连接，形成一个整体。
3.根据权利要求2所述的一种齿轮轴锻模的下模，其特征在于：所述下模体下端面设有凸台；所述下模接垫上端面设有凹槽，下端面设有凸缘，圆形通孔内设有台阶；所述下模镶件下端面设有凸台。
4.根据权利要求2所述的一种齿轮轴锻模的下模，其特征在于：所述下模体和所述下模镶件均为模具钢。
CN201320466493.9U 2013-08-01 2013-08-01 一种齿轮轴锻模的下模 Expired - Fee Related CN203495114U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105798221A (zh) * 2016-03-12 2016-07-27 洛阳华冠齿轮股份有限公司 半轴齿轮轴颈外圆扁及端面双曲线油槽近净成形锻造方法
CN107186151A (zh) * 2017-07-19 2017-09-22 桐乡市恒泰精密机械有限公司 连接块锻造模具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105798221A (zh) * 2016-03-12 2016-07-27 洛阳华冠齿轮股份有限公司 半轴齿轮轴颈外圆扁及端面双曲线油槽近净成形锻造方法
CN107186151A (zh) * 2017-07-19 2017-09-22 桐乡市恒泰精密机械有限公司 连接块锻造模具

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