The invention relates to a hydraulic test system for a repeated bend test. The system comprises a substrate, a supporting block, a clamping block, a loading block, a loading bolt, a guide rail, an oiltank, a hydraulic pump and a hydraulic cylinder; the supporting block is fixed to the substrate, the upper end face of the supporting block is used for placing a to-be-tested part, a baffle plate isarranged on the supporting block on the side of the to-be-tested part, the height of the baffle plate is smaller than the diameter of the to-be-detected part, and the lower end of the clamping block is right-angled; the guide rail is vertical to the substrate, the clamping block and the loading block are successively arranged on the guide rail in a sleeving mode, a loading bolt is arranged on thetop of the loading block, the loading bolt is screwed into the loading block, the end part of a hydraulic rod of the hydraulic cylinder leans against the loading bolt, and the hydraulic cylinder is used for applying an action force to the loading bolt.

Hydraulic test system for repeated bend test

The invention provides a micro-feeding tool rest and a tool polishing device. The micro-feeding tool rest comprises a shell, a micro-feeding assembly and an elastic part, wherein the shell is providedwith a first mounting groove with a long shaft extending in a first direction, and the micro-feeding assembly is arranged in the first mounting groove and extends in the first direction; and the elastic part is connected to the lower end of the shell in the first direction, the elastic part is provided with a first end and a second end which are opposite to each other, a second mounting groove used for allowing a tool to be arranged is formed between the first end and the second end, and the first end can abut against the micro-feeding assembly and is arranged to be spaced from the shell. Themicro-feeding tool rest can achieve micro-precise feeding of the tool.

Micro-feeding tool rest and tool polishing device

The utility model relates to a mechanical properties tests technical field, the utility model provides a flexural fatigue test instrument and test system. Flexural fatigue test instrument includes base, testing arrangement, clamping device, a drive assembly, and clamping device, testing arrangement, a drive assembly are fixed in the base respectively, testing arrangement makes and is in step carried out reciprocating motion at first direction motion, the 2nd drive assembly drive detecting element and testing element at the first direction by test appearance including the 2nd drive assembly, detecting element, the testing element that connect gradually, drive assembly drive clamping device, makes drive assembly 0 tested kind with predetermined frequency and amplitude extrusion. The utility model provides a test system, this system includes data processor, sign instrument, flexural fatigue test instrument, real -time regulation and control test data has been realized, whole dynamic monitoring mechanical testing process to data processor, sign instrument and flexural fatigue test instrument cooperation work.

Wu Weidong

Papers

Flexural fatigue test instrument and test system