四连杆曲柄飞剪机剪切力测试与分析

通过对四连杆曲柄飞剪机剪切力的测试与分析,弄清了剪切力与工艺参数之间的定量关系,为合理安排生产,确保飞剪机安全运行,掌握飞剪机的最大生产能力,正确评估飞剪机的工作状态提供了重要依据。在测试中,解决了不少技术难题,如剪刃受力静不定系统的转化、剪刃的技术改造方法、标定时实际剪切状态的模拟、剪切力信号的获取方法、应力测量时的温度补偿与导线的热辐射防护等。

Test and analysis of sthar force of four-bar linkage crank flying shear

The article presents through a test and an analysis of shear force of four bar linkage crank flying shear, the reality relation between the shear force and technical parameters, offering a vital basis for production plan and safe operation, and the determination of maximum productive capacity and valid evaluation of work condition of the flying shear. We have solved many difficult technical problems in the test. For example, the conversion of static instability system of stress of shearing edge, the improvement of shearing edge, the imitation of real shearing condition in calibration, the way how to get the signal of shear force, compensation of temperature during stress measurement and protection of heat and so on.