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How to detect the connector pins?sewing thimble Vendor

source:pogo pin release time:2021-12-18 Article author:sznbone Popular:POGO PIN

  


  Pin pins are electrical components of electronic products. Its demand is gradually increasing, and its reliability requirements are getting higher and higher. Whether the diameter and size of the pins meet the requirements has a direct impact on the stability of the contact points of the electrical connector. In order to meet the high-efficiency and high-precision inspection requirements and achieve the automation of production, automatic and high-precision measurement of the pin diameter is required to maximize production efficiency and product quality.

  Because the detection of the pin diameter requires high precision and high efficiency, and the pins required to be measured are usually gold-plated parts, in order to prevent wear, non-contact measurement must be used. At present, the commonly used non-contact measurement at home and abroad mainly uses laser scanning sensors for detection, but this method will have nonlinear errors, and the measurement results are easily interfered by the high temperature and vibration of the probe motor. In addition, the laser diffraction method is also a high-precision diameter measurement method, but because the measurement mechanism is relatively large and requires high environmental requirements, it restricts its use under production site conditions.

  The pin uses the CCD projection method applied by the single-path diameter measuring system, and the linear array CCD is used as the high-sensitivity photoelectric sensor. Advantages:

  First: Small pixel size, high geometric accuracy, coupled with excellent optical system, can get high spatial resolution.

  Second: With the characteristics of high sensitivity, wide spectral response, large dynamic range, etc., it has a wide range of applications in industrial non-contact detection and control.

  Third: The uniform and stable wavelength is that the light emitted by the 520NMLED light source is transformed into a parallel beam by the collimating lens. After emission, some of it is blocked by the target, and then passes through the filter lens and imaging lens group in the receiver, and finally is the linear CCD When receiving, the CCD sensor scans with a preset sampling rate and calculates the length of the shadow at the same time, so as to measure the size of the target, and the measurement result will be displayed on the LCD screen at the same time.


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