Clamping mechanism, test equipment and battery production system

The utility model relates to the technical field of material tensile fatigue performance testing, and discloses a clamping mechanism, testing equipment and a battery production system. The second clamping piece and the first clamping piece are oppositely arranged at an interval; the third clamping piece is located between the first clamping piece and the second clamping piece, and clamping spaces used for clamping sample pieces are formed between the first clamping piece and the third clamping piece and between the second clamping piece and the third clamping piece respectively; and the adjusting piece sequentially penetrates through the second clamping piece, the third clamping piece and the first clamping piece and is used for adjusting the distance of the clamping space so as to clamp or loosen the sample piece. According to the technical scheme, at least two sample pieces can be clamped at the same time for tensile fatigue performance testing, the structure is simple, and the testing efficiency is high.