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配合试验室进行缠绕试验,我们自制了线材缠绕试验夹具(以下简称夹具)。方法:仿照车床缠绕弹簧的方法将自制夹具(见示意图)安装在NX-6型线材扭转试机轨道上,即可进行缠绕试验。使用范围:以线材直径大于2毫米或缠绕心棒直径大于4毫米为宜。操作要点:在试验机上装上缠绕心捧。将试样一端弯成直角,根据线材直径把另一端插入夹具拉线块上(拉线块硬度过高会损伤线材表面,可采用硬铝)大小适当的孔内。再将直角端插入试验机钳口,此时用手扶住夹具,可开动电机进行试验,试验时夹具会自动向图中所示方向移动。
With the laboratory for winding test, we made a wire wound test fixture (hereinafter referred to as fixture). Method: Take the way of lathe spring to install the self-made fixture (see the schematic diagram) on the NX-6 wire torsion test machine track to carry out the winding test. Use: wire diameter greater than 2 mm or winding mandrel diameter greater than 4 mm is appropriate. Operating points: on the test machine mounted on the winding heart holding. Bend one end of the specimen to a right angle and insert the other end into the jig pull block according to the diameter of the wire (the hardness of the pull block will damage the surface of the wire, which can be made of hard aluminum). Then insert the right-angle end of the test machine jaws, then hold the fixture by hand, you can start the motor test, the fixture will automatically move to the direction shown in the figure.