The utility model relates to a fixture for thin-walled rolls, which comprises a fixture body, screw, nut and pressing block. The fixture body is circular. The working face of the fixture body is provided with an outer convex ring at the center of the working face, which is used to close the top ring of the inner end face of the roll. The fixture body on the outer side of the top ring is evenly provided with a number of thread holes for installing the screw. The fixture body's installation surface is provided with an outer convex mounting plate, and the pressing block is sleeved. The screw is installed at the outer end of the screw. The nut sleeve is installed on the screw and is locked and positioned by the pressing block. A top rod is arranged between the working face of the fixture body and the pressing block. The top rod and the roll are located on both sides of the screw, one side of the pressing block is pressed on the outer end of the roll, and the other side of the pressing block is pressed on the top rod. The beneficial effect of the utility model is that the radial deformation is minimized by taking the end face of the workpiece as the reference and clamping with an axial clamping fixture.
【技术实现步骤摘要】
薄壁轧辊的夹具
本技术涉及一种薄壁轧辊的夹具。
技术介绍
大型薄壁轧辊的材质为YGR45的硬质合金,硬度高、脆性大,属于难加工材料。大型薄壁轧辊工件内孔加工精度要求高,圆度公差在0.005mm以内。依据产品加工质量问题表明,加工的主要问题是工件内孔变形。变形产生的主要原因有:工件的夹紧方式不合理产生变形;磨削中砂轮的磨削力产生变形;磨削热和内应力造成的变形等。为了保证磨削加工质量,针对大型薄壁轧辊内孔磨削变形,采取合理的措施,采用正确的加工工艺方案减少轧辊的内孔变形,使大型薄壁轧辊内孔加工精度达到产品的质量要求。
技术实现思路
本技术要解决的技术问题是:基于上述问题,提供一种薄壁轧辊的夹具。本技术解决其技术问题所采用的技术方案是:一种薄壁轧辊的夹具,包括夹具体、螺杆、螺帽和压块,夹具体呈圆环状,夹具体的工作面中央设有外凸的圆环形用于紧贴轧辊内端面的顶环,顶环外侧的夹具体上均匀开设有若干安装螺杆的螺纹孔,夹具体的安装面设有外凸的安装盘,压块套设安装于螺杆的外端部,螺帽套设安装于螺杆上并紧贴压块外端面将其锁紧定位,夹具体的工作面和压块之间压紧设有顶杆,顶杆和轧辊分别位于螺杆两侧,压块一侧压紧轧辊外端面,压块另一侧压紧顶杆。进一步地,顶环与轧辊同轴设置,顶环的内径大于轧辊,顶环的外径小于轧辊。进一步地,螺纹孔、螺杆、螺帽、顶杆和压块的数量均为4个。本技术的有益效果是:以工件的端面为基准,采用轴向夹紧夹具装夹,使径向变形为最小。附图说明下面结合附图对本技术进一步说明。图1是本技术的结构示意图;其中:1.夹具体,2.螺杆,3.螺帽,4.压块,5.顶杆。具体实施方式现在结合附 ...
【技术保护点】
1.一种薄壁轧辊的夹具,其特征是:包括夹具体(1)、螺杆(2)、螺帽(3)和压块(4),夹具体(1)呈圆环状,夹具体(1)的工作面中央设有外凸的圆环形用于紧贴轧辊内端面的顶环,顶环外侧的夹具体(1)上均匀开设有若干安装螺杆(2)的螺纹孔,夹具体(1)的安装面设有外凸的安装盘,压块(4)套设安装于螺杆(2)的外端部,螺帽(3)套设安装于螺杆(2)上并紧贴压块(4)外端面将其锁紧定位,夹具体(1)的工作面和压块(4)之间压紧设有顶杆(5),顶杆(5)和轧辊分别位于螺杆(2)两侧,压块(4)一侧压紧轧辊外端面,压块(4)另一侧压紧顶杆(5)。
【技术特征摘要】
1.一种薄壁轧辊的夹具,其特征是:包括夹具体(1)、螺杆(2)、螺帽(3)和压块(4),夹具体(1)呈圆环状,夹具体(1)的工作面中央设有外凸的圆环形用于紧贴轧辊内端面的顶环,顶环外侧的夹具体(1)上均匀开设有若干安装螺杆(2)的螺纹孔,夹具体(1)的安装面设有外凸的安装盘,压块(4)套设安装于螺杆(2)的外端部,螺帽(3)套设安装于螺杆(2)上并紧贴压块(4)外端面将其锁紧定位,夹具体(...
【专利技术属性】
技术研发人员:应浩斌,
申请(专利权)人:常州市莱赫润机械有限公司,
类型:新型
国别省市:江苏,32
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