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列宁格勒工具厂与哈尔科夫工学院为了提高超硬材料刀具刃磨的生产率和质量对3E624型半自动工具磨床进行了改装。在机床的加工区外安装了控制砂轮切削能力的专门装置(图1)。另外,把仿形尺的结构作了改变,使砂轮轴向内主轴部件的行程增大4毫米;同时还对车刀刃磨夹具的结构作了改进。控制装置(图1)的导电本体4上固定阴极板3。在阴极板3与砂轮间留有间隙。为了阴极板能在砂轮转轴方向内移动(使控制电路的电流保持给定值),本体4装在两个平行的扁弹簧10上。弹簧的一端固接在座板6上、在座板上还安装减速电动机11。通过装在电动机轴上的螺钉9和连接双头螺栓7的连杆8实现阴极板的进退,从而调节控制电路的电流。座
The Leningrad Tool Works and Kharkov Institute of Technology modified the Model 3E624 Semi-Automatic Tool Grinder in order to increase the productivity and quality of the super-hard material tool sharpening. In the machining area outside the machine installed grinding wheel cutting capacity of the special device (Figure 1). In addition, the structure of the profiled ruler has been changed to increase the stroke of the spindle components within the wheel axis by 4mm. At the same time, the structure of the tool sharpening fixture has been improved. The cathode plate 3 is fixed to the conductive body 4 of the control device (FIG. 1). There is a gap between the cathode plate 3 and the grinding wheel. The body 4 is mounted on two parallel flat springs 10 so that the cathode can move in the direction of the spindle of the grinding wheel (the current in the control circuit remains constant for a given value). One end of the spring is fixed on the seat plate 6, and a reduction motor 11 is also mounted on the seat plate. The forward and backward movement of the cathode plate is achieved by the screw 9 attached to the motor shaft and the connecting rod 8 connected with the stud bolt 7 to adjust the current of the control circuit. seat