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1973年我厂革新了一台千分尺三母互研丝杆研磨机,通过几年来使用,实践证明效果良好,其结构如图所示。可逆电动机1,通过连接头2,带动被研千分尺光杆3,开合螺母研磨器4、5,靠紧夹弹簧6夹紧丝杆,导板7在开合螺母带动下沿导槽上下运动,从而推动限位开关9、10,控制可逆电机作正反向转动,研磨行程可由调节螺丝8调节。电路可参阅《计量工作》1966年第2期24页。研磨时,应使用三块一组的开合螺母轮流研磨,就能达到较为理想的结果,精度可达0级丝杆要求。
In 1973, our factory innovated a micrometer three-parent screw grinder, which has been proved to be effective by several years. The structure is as shown in the figure. The reversible motor 1 drives the micrometer rod 3 to be driven through the connector 2, the grinder 4 and 5 of the opening and closing nut to clamp the screw rod by the clamping spring 6, and the guide plate 7 moves up and down along the guide groove under the action of the opening and closing nut Promote the limit switch 9, 10, reversible motor control reversible rotation, grinding stroke can be adjusted by adjusting screw 8. Circuit can be found in “measurement work” 1966 second issue 24 pages. Grinding, should be used to open and close the three groups of nuts turn grinding, we can achieve better results, the accuracy of up to 0 screw requirements.