Device and method for detecting clamping force of fuel element grillwork

The invention relates to the technical field of fuel element performance detection, and particularly discloses a device and method for detecting the clamping force of a fuel element grillwork, a positioning probe on a positioning block and a test probe on a test block are butted and spliced into a cylinder probe, and then the cylinder probe is inserted into a to-be-detected lattice cell on a grillwork for clamping force test. The outer diameter arc design is adopted for the edges of the two ends of the positioning probe and the testing probe, when the probes are assembled and tested, the whole probe is changed into a cylindrical shape, and the effect of simulating insertion of the fuel rod specified in the technical requirements is achieved. 本发明涉及燃料元件性能检测技术领域，具体公开了一种燃料元件格架夹持力检测装置及方法，将定位块上的定位测头与测试块上的测试测头对接拼合为柱体测头，之后插入格架上的待测栅元中，以进行夹持力测试。本发明定位测头和测试测头的两端边缘采用外径圆弧设计，当测头装配测试时，整体测头变为圆柱形，实现了技术要求中规定模拟燃料棒插入的效果。