Measuring system for flexural deflection in large crankshaft processing

The invention discloses a measuring system for flexural deflection in large crankshaft machining, and belongs to the technical field of flexural deflection measurement, and the measuring system comprises a lower computer part which is used for carrying out the real-time detection of the flexural deflection of multiple points of a large crankshaft in machining, and obtaining the monitoring data of each point; the upper computer part is used for setting a threshold value and processing the monitoring data based on the threshold value to obtain information related to unqualified data; and the real-time monitoring system is used for carrying out centralized control on the information related to the unqualified data and transmitting the detection data to a database in real time in a Bluetooth wireless transmission mode. According to the method, a user can set a threshold value through an upper computer analysis platform, the system can automatically judge whether data of all point locations are qualified or not ac