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          1、概念

          彈簧是一種利用彈性來工作的機械零件。用彈性材料制成的零件在外力作用下發生形變,除去外力后又恢復原狀。一般用彈簧鋼制成。彈簧的種類復雜多樣,按形狀分,主要有螺旋彈簧、渦卷彈簧、板彈簧、異型彈簧等。
          彈簧表面質量檢測是彈簧加工的重要環節。檢測時,人們通過各種試驗方法對彈簧的性能進行測定,從而把彈簧的質量定量數值化,為企業的質量管理與追蹤提供更好的評定依據。

          2、測量要素

          彈簧的外觀檢測和尺寸檢測(包括彈簧長度、線徑、線徑間距和有效圈數)。

          3、測量難點

          國內現有的彈簧檢測方法一般是人工用游標卡尺等工具測量,這種方法不僅效率低,而且人為誤差大。有些公司也從國外進口先進設備進行彈簧自動檢測,這一方面大大增加了生產成本,另一方面設備的維護也很困難。

          4、解決方案

          天準影像測量儀在彈簧的質量檢測過程和原人工檢測系統相比,其優勢體現在:
          1) 檢測精度高。如人工檢測彈簧的要求誤差為±0.5mm以內,而影像檢測的尺寸能夠實現檢測誤差在±0.01mm以內;
          2) 檢測速度快。人工檢測一個彈簧的時間大概為3s,影像探測系統檢測時間為1s;
          3) 人工檢測有情緒,且人眼易于疲勞,不易保持檢測效果;然而視覺檢測效果穩定,對同一個彈簧重復檢測的準確率為99.99%,而且可 24 小時不停檢測。

          彩8彩票

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