Measuring instrument for detecting quality of spring and use method of measuring instrument

Abstract

The invention discloses a measuring instrument for detecting the quality of a spring and a using method thereof.The measuring instrument comprises a workbench and a displayer, the workbench is connected with the displayer through a sensor, the workbench comprises a measuring area, the measuring area is provided with a plurality of fixing holes, an inductor is arranged below the measuring area, and the inductor is arranged under the fixing holes; the inductor is connected with the sensor; the workbench comprises a plurality of moving areas, the moving areas are symmetrically distributed in pairs with the measuring area as the center point, sliding grooves are formed in the moving areas, telescopic rods are arranged in the sliding grooves, the telescopic rods are arranged on sliding blocks, the sliding blocks can slide along the sliding grooves, one ends of the sliding blocks are connected with stretching rods, and the stretching rods are connected with the workbench in a penetrating mode; the device comprises a lifting rod and a pressure plate arranged on the lifting rod, a plurality of alignment holes are formed in the pressure plate, the pressure plate is connected with a sensor, the two ends of a spring are fixed to a moving area, the moving area changes the length of the spring, an inductor in a measuring area obtains the stress value of the spring, and therefore the stress states of the spring under different elongation amounts are obtained.

Description

technical field [0001] The invention relates to the fields of spring quality inspection and load measurement, in particular to a measuring instrument for detecting spring quality and a using method thereof. Background technique [0002] The use of the spring exceeding the maximum compression during use (300,000 times, the use of the joints for a long time) produces pressure and causes breakage, and the use of close to the long-term use will make the spring line gradually close, because The higher the spring constant, the higher the load curve will be, which will cause high stress and break the spring. Please do not use it for more than 300,000 times. The use of no preload will cause the spring to vibrate up and down due to gaps, which will cause the spring to be twisted. If there is preload, the spring will be more stable. When the spring is used horizontally, the guide pin and the spring will be worn and broken when the spring is used horizontally. The use of no spring gu...

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