Curvature detection device for guide rail of boarding machine

The utility model discloses a bending degree detection device for a guide rail of a boarding machine, which comprises a fixed block, an insertion hole is vertically formed in the fixed block, a communication groove communicated with the insertion hole is formed in the side wall of the insertion hole, a scale rod is arranged in the insertion hole, and a spring used for abutting against the side wall of the scale rod is arranged in the communication groove. According to the bending degree detection device, the scale rod moves downwards only when the bending degree detection device is subjected to downward pressure of high-temperature deformation of the guide rail, and when the guide rail floats upwards due to cooling in the later period, the scale rod does not move upwards under the pressure of the spring, so that the sinking distance of the guide rail at high temperature can be measured. 本实用新型公开了一种定形机导轨的弯曲度检测装置，包括固定块，所述固定块上竖直布置有插孔，所述插孔侧壁设有和插孔连通的连通槽，所述插孔内设有标尺杆，所述连通槽内设有用于顶住标尺杆侧壁的弹簧。本实用新型中的弯曲度检测装置只在受到导轨高温变形的下压力时标