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该夹具应用在从三个方向同时进行精镗铸铝壳体件的组合机床上。机床的结构简单,其唯一特点就是它的夹具。 在工件的基准面必须垂直安装时,其夹具的结构为立板型,但在此种情况如从立板的背侧也必须加工,其厚度受限制,刚性也不易加大。这种场合,往往由于夹紧力使支承定位基准块的立板变形,使精度变坏。如图示的夹具,利用C形压紧方式,则不用担心出现上述问题。
The fixture is used on combination machines that perform fine boring of aluminum housing parts simultaneously in all three directions. The machine’s structure is simple, its only feature is its fixture. In the workpiece reference plane must be mounted vertically, the structure of the fixture for the vertical plate type, but in this case, such as from the back of the vertical plate must also be processed, the thickness is limited, the rigidity is not easy to increase. In such a case, the vertical plate supporting the positioning reference block often deforms due to the clamping force, deteriorating the accuracy. As shown in the fixture, the use of C-type compression, then do not have to worry about the above problems.