Metal material plastic yield strength detection device

Abstract

The invention discloses a metal material plastic yield strength detection device, which relates to the technical field of material detection. According to the technical scheme, the device comprises adetection platform, two supporting stand columns, a horizontal cross beam, a servo drive motor, an adjusting telescopic rod, an impact pressure head component, an acceleration sensor, a hard alloy ball and a to-be-tested sample fixing area, wherein the to-be-tested sample fixing area is located between the two supporting stand columns, and the to-be-tested sample fixing area is perpendicular to the central axis of the hard alloy ball; a PLC and a power supply device are arranged on the side wall of the detection platform; a touch operation display screen is detachably connected to the side wall of the supporting stand column. A switch control mechanism is arranged on the top surface of the detection platform; and the servo drive motor, the acceleration sensor and the touch operation display screen are connected with the PLC. According to the device, the yield strength of the metal material is detected by adopting a dynamic load indentation method, the yield strength of the metal material can be rapidly detected, the detection efficiency is high, and the detection result is accurate; meanwhile, the device is simple in test structure and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of material detection, more specifically, it relates to a detection device for the plastic yield strength of metal materials. Background technique [0002] Yield strength is the yield limit when the metal material yields, that is, the stress that resists micro-plastic deformation. For metal materials without obvious yield phenomenon, the stress value that produces 0.2% residual deformation is specified as the yield limit, which is called the conditional yield limit or yield strength. At present, it is usually necessary to test the yield strength of the produced metal materials to determine whether the metal materials meet the design requirements. [0003] In the prior art, for the detection of metal materials, a universal material testing machine is usually used for detection. When the current universal material testing machine detects the plastic yield strength of the metal material, it hits the metal mat...

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Problems solved by technology

[0004] In the process of detecting the yield strength of metal materials in the above-mentioned prior art, it is not easy to quickly and accurately control the distance between the collision block and the metal material, and through the impact of the collision block on the metal material and combined with the universal material testing machine To detect the yield strength of metal materials, the detection operation process is cumbersome, the detection efficiency is low, and the detection results are not accurate

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