Centering clamping device for measuring percentage elongation after fracture

• Main Authors: LI ZHITAO, WANG CHAODE, NIE JING
• Format: Patent
• Language: Chinese; English
• Published: 14.05.2014
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a centering clamping device for measuring percentage elongation after fracture, which facilitates the accurate measurement of the percentage elongation after fracture of a tensile sample. The centering clamping device for measuring percentage elongation after fracture comprises a base, wherein a spiral rod is mounted on the base, and the two ends of the spiral rod and the base are in running fit; a first sample objective table and a second sample objective table are in threaded connection with the spiral rod, a first sample positioning structure is arranged on the first sample objective table, a second sample positioning structure is arranged on the second sample objective table, and a driving mechanism is connected with one end of the spiral rod; when the spiral rod rotates, the moving directions of the first sample objective table and the second sample objective table are opposite. The centering clamping device has the advantages as follows: two fractured samples can be aligned a