为了使齿轮得到较高的啮合精度,并降低啮合噪声,必须尽量提高齿轮内孔与节圆的同心度。为此,设计并使用高精度的齿轮节圆定位夹具是一个经济而有效的措施。我们设计和制作的一套齿轮节圆定位卡盘,就是以齿廓定位来加工齿轮内孔的夹具。理论计算和实际使用都表明,该卡盘具有很高 In order to get higher gear meshing accuracy, and reduce meshing noise, we must try to improve the concentricity of gear bore and pitch circle. For this reason, the design and use of high-precision gear pitch circle positioning fixture is an economical and effective measures. We design and produce a set of gear pitch circle positioning chuck, is the tooth profile positioning gear hole processing fixture. Both theoretical calculations and practical use indicate that the chuck is high