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在一些薄壁精密工件的加工过程中,由于其壁厚薄,刚性较差,在夹紧力及切削力的作用下,很容易造成工件的尺寸和形位公差超差,特别是对于某些零件上外圆与内孔之间有较高形位精度要求的薄壁零件,其加工精度更是难以保证,必须采取措施通过设计专用夹具,优化工件的夹紧状态,才能减小夹紧力对工件的影响,尽可能减小切削力,确保此类工件的加工精度。液性塑料定心夹具作为一种柔性、高精度的定位夹具,被广泛应用于薄壁工件车、磨等加工工序中,可有效解决在加工过程中夹紧力及切削力对薄壁工件变形的影响。
In some thin-walled precision workpiece processing, due to its thin wall, poor rigidity, the clamping force and cutting force, it is easy to cause the workpiece size and form tolerance tolerance, especially for some parts The upper part of the outer circle and the hole between the high-precision requirements of the thin-walled parts, the machining accuracy is more difficult to ensure that you must take measures to design special fixtures to optimize the workpiece clamping state, in order to reduce the clamping force on The impact of the workpiece, as much as possible to reduce the cutting force, to ensure that the processing accuracy of such parts. Liquid plastic centering fixture as a flexible, high-precision positioning fixture, is widely used in thin-walled workpiece car, grinding and other processing operations, which can effectively solve the processing of clamping force and cutting force on the deformation of thin-walled parts Impact.