The utility model discloses a static pressure expanding and tightening tool for grinding an inner hole, which comprises a base, a mold body is arranged on the base, a static expanding core sleeve is arranged in the mold body, two ends of the static expanding core sleeve are respectively sleeved with a tool ring, the mold body is provided with a pressure component, and the outer side of the pressure component is provided with a pressure component. The end part of the pressure screw is provided with a pressure screw, and the end part of the pressure screw is connected with a piston, and a cavity is formed between the outer part of the static expansion core sleeve and the inner part of the model. The static expansion core sleeve is movably provided with an elastic jacket relative to the outer part; the product of the utility model is practical, the structure is reasonable, and the circular direction is uniform by using the static pressure principle. The problem of low positioning accuracy can be solved by transferring pressure, eliminating clearance first and then transferring torque. At the same time, the special structure of workpiece can be overcome by adding elastic jacket as clamping attachment, and the A and B datum can be positioned and clamped at the same time. The hidden trouble caused by the inconsistency between processing datum and testing datum can be eliminated.
【技术实现步骤摘要】
一种磨内孔用静压胀紧工装
本技术涉及机械模具装置
,具体尤其涉及一种磨内孔用静压胀紧工装。
技术介绍
在目前的机械零件精加工领域,套筒类零件内孔精加工的测量基准多为两磨削外圆共同确定的基准轴线A-B,且内孔相对A-B基准有较高同轴度要求,这样,机床卡盘单基准定位夹紧产品的装夹方法已不能满足加工要求;简易工装可以实现一部分工件的双外圆装夹,但遇到结构复杂的工件时,即两基准中间台阶圆大于两基准圆,则无法同时夹持两基准外圆,则不能满足成品要求,市场上确有能满足工件内孔加工要求的工装,但不仅价格昂贵,而且装夹复杂,使用要求高。
技术实现思路
为此,本技术提出一种磨内孔用静压胀紧工装,产品实用,结构合理,利用静压原理在圆周方向均匀传递压力、先消除间隙后传递扭矩,以解决装夹定位精度低的问题;同时增加弹性夹套作为装夹附件,可克服工件特殊结构,实现A、B基准同时定位夹紧,消除因加工基准与检测基准不统一带来的隐患。本技术通过如下手段实现:一种磨内孔用静压胀紧工装,包括有底座,所述的底座上设有模具体,所述的模具体内套设有静胀芯套,所述的静胀芯套的两端外侧分别套设有工装挡圈,所述的模具体上设有加压组件,所述的加压组件的外侧端部设有加压螺钉,所述的加压螺钉的端部连接有活塞,所述的静胀芯套的外部与模具体的内腔之间形成空腔,所述的静胀芯套相对外侧端部活动设有弹性夹套。优选地,所述的活塞的底端设有挡圈。优选地,所述的模具体设有通孔,所述的通孔上设有螺钉,可通过开合螺钉,向模具体与静胀芯套之间形成的空腔内注入润滑脂。优选地,所述的弹性夹套为开设有挡圈槽的圆柱形件,所述的弹性夹套的外壁与静胀 ...
【技术保护点】
1.一种磨内孔用静压胀紧工装,包括有底座,所述的底座上设有模具体,所述的模具体内套设有静胀芯套,所述的静胀芯套的两端外侧分别套设有工装挡圈,所述的模具体上设有加压组件,所述的加压组件的外侧端部设有加压螺钉,所述的加压螺钉的端部连接有活塞,所述的静胀芯套的外部与模具体的内腔之间形成空腔,所述的静胀芯套相对外侧端部活动设有弹性夹套。
【技术特征摘要】
1.一种磨内孔用静压胀紧工装,包括有底座,所述的底座上设有模具体,所述的模具体内套设有静胀芯套,所述的静胀芯套的两端外侧分别套设有工装挡圈,所述的模具体上设有加压组件,所述的加压组件的外侧端部设有加压螺钉,所述的加压螺钉的端部连接有活塞,所述的静胀芯套的外部与模具体的内腔之间形成空腔,所述的静胀芯套相对外侧端部活动设有弹性夹套。2.根据权利要求1所述的一种磨内孔用静压胀紧工装,其特征在于:所述的活塞的底端设有挡圈。3.根据权利要求1所述的一种磨内孔用静...
【专利技术属性】
技术研发人员:王忠新,李宏伟,高久生,
申请(专利权)人:六安江淮永达机械制造有限公司,
类型:新型
国别省市:安徽,34
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