The utility model discloses a lifting lug for casting 3D printing sand mould conveying. The lifting lug is made into a trapezoidal structure with a trapezoidal lifting claw. The maximum square cross section edge of the trapezoidal structure of the clamping claw is longer than the minimum square cross section edge of the assembled lifting lug trapezoidal structure, which is more than 2 mm long. The utility model has the beneficial effect that, firstly, the positioning accuracy of the sand mould can be well compensated, because the matching surface of the trapezoidal claw and the lifting lug has a clearance of more than 1mm at the beginning of clamping, and finally the two are tightly combined. If the position of claw and lifting lug is offset due to the operation process before the start of clamping operation, sand mould can also be grasped due to the existence of clamping clearance. This is the precision that can be reached by conveying equipment equipped with ordinary motors. The traditional square claw is straight in and out, and the error can not be greater than 1 mm. This is the conveying equipment equipped with high precision servo motor or stepping motor. Second, there is a demoulding slope between the claw and the lifting lug, which is easy to separate.
【技术实现步骤摘要】
一种铸造3D打印砂型输送用吊耳
本专利技术涉及铸造
,特别是涉及一种铸造3D打印砂型输送用吊耳。
技术介绍
现有的3D打印砂型的吊耳都采用方型结构,配以方型卡爪,这种配合形式:首先是对定位精度要求严苛,使用方型吊耳的砂型,与方型卡爪之间没有误差补偿功能,对砂型的定位精度要求非常高,需要配置高精度的砂型输送设备;第二是脱离困难,方型卡爪与方型吊耳之间没有脱模斜度,经常出现卡爪松开时无法脱离吊耳,拖动砂型运动,造成砂型破损。图1为卡爪的三维结构;图2为小吊耳的三维结构;图3为大吊耳的三维结构;图4为卡爪抓取小砂型时的三维配合形式,因为卡爪和吊耳都是平直的结构,所以抓取时没有间隙,导致对砂型及卡爪的定位精度要求非常高,需要配套高精度的输送设备;图5为卡爪抓取大砂型时的三维配合形式,为了使大小砂型能够通用一个卡爪,需要把大吊耳做出T型结构的凹槽,而这样就导致了卡爪与吊耳配合面增多,使卡爪的加紧和松开动作更难以实现,位置稍一错位,则难以夹紧。
技术实现思路
基于此,有必要针对现有铸造技术中3D打印砂型的吊耳与吊具配合面较多,定位精度要求严苛,吊耳与方型卡爪之间没有误差补偿功能,使卡爪的加紧和松开动作难以实现,容易出现难以夹紧或者损坏砂型的问题,提供一种可快速实现装卡,卡爪和吊耳之间易于分离的铸造3D打印砂型输送用吊耳。为解决上述问题,本专利技术提供一种铸造3D打印砂型输送用吊耳,其中吊耳凸出于砂型主体,并与砂型主体打印为一体,其中吊耳为梯形结构,用以卡压起吊卡爪的各装配面为梯形斜面。其中吊耳配装的起吊卡爪是横截面为正方形的方锥结构,其中梯形斜面的角度相同,卡爪方锥 ...
【技术保护点】
1.一种铸造3D打印砂型输送用吊耳,所述吊耳(2)凸出于砂型主体(1),并与砂型主体(1)打印为一体,其特征在于,所述吊耳为梯形结构,用以卡压起吊卡爪的各装配面为吊耳梯形面(5)。
【技术特征摘要】
1.一种铸造3D打印砂型输送用吊耳,所述吊耳(2)凸出于砂型主体(1),并与砂型主体(1)打印为一体,其特征在于,所述吊耳为梯形结构,用以卡压起吊卡爪的各装配面为吊耳梯形面(5)。2.根据权利要求1所述一种铸造3D打印砂型输送用吊耳,其特征在于:所述吊耳配装起吊卡爪(4),起吊卡爪(4)与吊具主体(3)连接为一体,其特征在于所述吊耳配装的起吊卡爪(4)是横截面为正方形的方锥结构,所述吊耳与卡爪的装卡配合面的截面均为梯形面,所述梯形面的斜面角度相同,所述卡爪方锥结构的最小正方形横...
【专利技术属性】
技术研发人员:卫飞龙,田学智,黄小东,杜文军,
申请(专利权)人:共享智能铸造产业创新中心有限公司,
类型:新型
国别省市:宁夏,64
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。