High-temperature impact tensile mechanical test platform and method based on cam crank connecting rod mechanism

The invention relates to a high-temperature impact tensile mechanical testing platform and method based on a cam crank connecting rod mechanism, and belongs to the field of material mechanical testing. The system drives the cam and the crank connecting rod mechanism to stretch and rotate under the action of the permanent magnet type alternating current motor, and impact loading is carried out on a test piece. The device is characterized by comprising a permanent magnet type alternating current motor, a fixing nut, heat insulation ceramic, a pressure sensor, a linear displacement sensor, a pressure gauge, a vacuum pump, a vacuum cavity, a clamp, a test piece, a halogen lamp, a mechanical test bed base, a corrugated pipe, a cam, a crank connecting rod mechanism, an observation window, a rolling bearing and the like. Compared with an existing room-temperature tensile test technology, influence factors of a high-temperature tensile impact test are more complex, a high-temperature high-strain-rate impact tensile l