The function of measuring plate spring pogopin

　　Spring pogopins are widely used in various contact devices based on the characteristics of the materials used in different environments, with the most commonly used being the simplest straight cantilever type spring pogopins. The resistance of the contact piece must be small, so it is made of bronze.

　　The function of the measuring spring pogopin is to transform force or displacement. If the fixed structure and load-bearing method can ensure that the working length of the spring pogopin remains unchanged, the stiffness of the sheet spring pogopin is constant in the small deformation range. If necessary, nonlinear characteristics can also be obtained, such as pressing the spring pogopin onto the limit plate or adjusting the screw, and changing its working length.

　　1. The radius of the curved processing part. When forming spring pogopin sheets, most of them require bending processing. If the curvature radius of the curved parts is relatively small, then these parts will generate significant stress. Therefore, to avoid significant stress in the bending section, the design should ensure that the bending radius is at least five times the thickness of the plate.

　　2. Stress concentration at the notch or hole location. Spring pogopins often have stepped parts and openings, which can cause stress concentration at the step where the size changes sharply. The smaller the diameter of the hole, the larger the width of the plate, and the greater the stress concentration coefficient.

　　3. Shape and dimensional tolerances of spring pogopin sheets. Sheet spring pogopins are commonly used for stamping processing. When designing, it is necessary to consider selecting suitable shapes and sizes for stamping processing. At the same time, it is also necessary to fully consider dimensional tolerances such as springback during bending processing and deformation generated during heat treatment of spring pogopins.

　　The requirements for heat treatment of spring pogopin sheets should be proposed based on their performance requirements. The hardness after heat treatment can generally be between 36 and 52HRC

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