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我厂生产的内球面校准样件如图1,用来检查零件的内球面,其硬度和精度较高。原工艺路线是:粗车——淬火——半精车——钳工——磨内圆——磨平面,不但费时而且内球面的尺寸精度、圆度都难以保证。我们设计制造了一套圆盘式内外球面车削夹具,装在C620车床上能自动走刀,正反回转,精车后高速抛光,可靠地达到了设计要求,效率提高三倍以上。
I plant the spherical calibration sample shown in Figure 1, used to check the inner sphere of the part, the hardness and accuracy of higher. The original route is: rough car - Quenching - semi-fine car - fitter - grinding inner circle - grinding plane, not only time-consuming and the dimensional accuracy of the spherical, roundness is difficult to guarantee. We have designed and manufactured a set of disc type inner and outer spherical turning jig, which can be installed on the C620 lathe to automatically pass the knife, revolve backwards and finish the car after polishing at high speed, reliably meeting the design requirements and increasing the efficiency more than three times.