我们在加工内球面零件时,根据《机械工程手册》的介绍,制造了一套内球面加工夹具。在使用中感到刀头调整不方便,因而改进设计了微调刀排。微调刀排(见图1)主要由刀排体1、刀套2、调节杆6、导向块8等零件组成。刀排体1可根据夹具的不同要求改变外形,并且用定位销和内六角螺钉固定在需要的位置上。导向块8用螺钉固定在刀排体上, When machining the inner spherical part, we manufactured a set of inner spherical processing fixture according to the introduction of “Mechanical Engineering Manual”. In the use of the knife is not easy to adjust, thus improving the design of the trimmer row. Fine-tuning knife row (see Figure 1) is mainly composed of the knife body 1, knife holder 2, adjusting rod 6, guide block 8 and other parts. Knife body 1 according to the different requirements of the fixture to change the shape, and positioning pins and socket head cap screws to the desired location. The guide block 8 is screwed on the knife body,