Material strength testing device for product design

The utility model discloses a material strength testing device for product design, which relates to the technical field of material strength detection and comprises a box body, first connecting blocksare fixedly connected to the left inner wall and the right inner wall of the box body, and first screw caps are clamped in the first connecting blocks. The utility model discloses a material strengthtesting device for product design. The detection ring is provided with a plurality of detection knives. When the detection knife is abraded, the whole detection ring does not need to be replaced; thedetection cost is effectively reduced; when the gear II rotates, the detection knife clamped in the clamping block can be driven to rotate; the detection knife is used for testing the material to besubjected to the material strength test; when the detection knife sequentially rotates from left to right to detect scratches generated on the surface of a material, the photoelectric sensor can detect the scratches, the output