The Design Of The Synchronous Straight Clamp For Single Space Tensile Machine

Tensile test machine is one of the performance of equipment material data acquisition.Tensile test machine working process for the fixture clamping specimen, loading device,and tension force value display and recording. According to the result of the experimentcan determine the performance index meets the requirement of material samples. Hencethe importance of tensile testing machine fixture in materials testing field.At present, the tensile tests of the main hydraulic universal testing machine, hydraulicuniversal testing machine is the most oil cylinder underneath type, double acting space,labor intensity of experimental personnel in the testing process is relatively large, but alsoin the fracture on the ground impact is relatively large. Due to the structure of the limittensile test specimen is difficult for longer. So now developed mainly single space tensiletest machine for tensile test.This paper is about the design and manufacture of hydraulic source for single spacetensile testing machine with synchronous straight clamp and matching, for the allocation of1000kN single space tensile testing machine. The design is based on GB, ISO, ASTM, DIN,BS, JIS on the material test, the specimen shape and material. Synchronous clamp adoptstwo hydraulic cylinder to clamp the sample loading, two clamping cylinder synchronizationis the key to ensuring a sample clamping fixture in the middle. A limiting device to ensurethe rectangular specimen clamping fixture in the middle position of. To ensure the testfixture with the deformation of the specimen clamping force can continue to increase,clamp the specimen does not slip, ensure the accuracy of test data.Clamping force is larger and can be changed at any time according to the testprocedure requires during tensile test, which requires the hydraulic source matching hashigher pressure and continuous pressure, in order to ensure the smooth progress of. Sothe hydraulic source and the fixture, the sealing requirements are relatively high.Synchronous clamp designed in this paper and the hydraulic source can meet theabove requirements, also can avoid some disadvantages of traditional wedge clamp. Canplay a better performance of single space tensile testing machine, the tensile test resultsare more reliable, meet customer requirements.