201111077 六、發明說明 【發明所屬之技術領域】 本發明是關於螺旋狀砂輪硏磨加工前螺旋狀砂輪相對 於被加工齒輪，或者是螺旋狀砂輪的修整前螺旋狀砂輪相 對於修整器之相位對準方法，及應用該相位對準方法的齒 輪磨床。 q 【先前技術】 先前以來，提供有對熱處理後的被加工齒輪即工件， 使用硏磨工具即螺旋狀砂輪進行硏磨，能夠效率良好加工 修整工件齒面的齒輪磨床。上述齒輪磨床是以螺旋狀砂輪 和工件已咬合的狀態，使該等同步旋轉進行工件的硏磨， 因此若咬合精度不足，恐怕工件的齒面會產生硏磨不均， 或會造成過大的負荷施加在螺旋狀砂輪，減少砂輪壽命。 於是，針對此種的齒輪磨床，爲了高精度進行螺旋狀 Q 砂輪和工件的咬合，在硏磨時的咬合之前，先進行兩者相 位定位的相位對準’使螺旋狀砂輪的切削刃（凹凸）和工 件的齒槽（凹凸）成爲適當的相位關係。如上述，進行螺 旋狀砂輪和工件的相位對準的方法’例如是揭示在專利文 獻1。 [先行技術文獻] [專利文獻1]日本特開2003 - 1 65 023號公報 【發明內容】 -5- 201111077 [發明欲解決之課題] 上述先前的相位對準方法’首先’在進行大槪 準（粗相位對準）使螺旋狀砂輪和工件的各別凹凸 後，正轉及逆轉工件’使其兩齒面接觸相向的螺旋 刃面，根據該接觸時的各齒面的接觸位置數據’精 螺旋狀砂輪和工件的相位對準（精密相位對準）° 然而，上述的先前方法中’粗相位對準’只是 螺旋狀砂輪的刀尖和工件的齒頂彼此干涉。基於此 的齒頂在螺旋狀砂輪的刃槽內是靠邊配置，工件齒 時（精密相位對準時），工件旋轉控制會變複雜’ 測出接觸爲止的時間變長，其結果，恐怕會導致相 最終完成爲止的時間變長。 另外，齒輪磨床是使用由修整器修整後的螺旋 對工件進行硏磨，因此不僅是在硏磨時砂輪和工件 對準，即使是在修整時砂輪和修整器的相位對準， 上述同樣的問題產生。 因此，本發明是爲了解決上述課題所硏創的發 的是提供一種可高速進行螺旋狀砂輪相對於被加工 修整器之相位對準的螺旋狀砂輪之相位對準方法及 床。 [用以解決課題之手段] 用以解決上述課題之第1發明相關的螺旋狀砂 位對準方法是一種螺旋狀砂輪硏磨加工前螺旋狀砂 相位對 成相向 狀砂輪 密進行 要避免 ，工件 面接觸 以致檢 位對準 狀砂輪 的相位 都會有 明，目 齒輪或 齒輪磨 輪之相 輪相對 -6 - 201111077 於被加工齒輪，或者是上述螺旋狀砂輪的修整前螺旋狀砂 輪相對於修整器之相位對準方法，其特徵爲： 對旋轉的上述螺旋狀砂輪的側面照射來自雷射式位移 感測器的雷射光，測定該側面的凹凸量， 根據上述凹凸量算出上述螺旋狀砂輪的刃槽位置， 調整上述螺旋狀砂輪的相位使上述刃槽位置和被加工 齒輪的齒頂或上述修整器的刀尖成相向， q 朝兩方向旋轉上述螺旋狀砂輪，使上述螺旋狀砂輪的 一方刃面接觸被加工齒輪的一方齒面或上述修整器的一方 刃面，接著，使上述螺旋狀砂輪的另一方刃面接觸被加工 齒輪的另一方齒面或上述修整器的另一方刃面， 調整上述螺旋狀砂輪的相位使被加工齒輪的齒頂或上 述修整器的刀尖配置在接觸時的上述螺旋狀砂輪相位間的 中間相位。 用以解決上述課題之第2發明相關的螺旋狀砂輪之相 Q 位對準方法是一種螺旋狀砂輪硏磨加工前螺旋狀砂輪相對 於被加工齒輪，或者是上述螺旋狀砂輪的修整前螺旋狀砂 輪相對於修整器之相位對準方法，其特徵爲： 對旋轉的上述螺旋狀砂輪的側面照射來自雷射式位移 感測器的雷射光，測定該側面的凹凸量， 根據上述凹凸量算出上述螺旋狀砂輪的刃槽位置， 調整上述螺旋狀砂輪的相位使上述刃槽位置和被加工 齒輪的齒頂或上述修整器的刀尖成相向， 朝一方向旋轉上述螺旋狀砂輪，將上述螺旋狀砂輪的 201111077 一方刃面和被加工齒輪的一方齒面或上述修整器的一方刃 面接觸時的上述螺旋狀砂輪的相位記憶成第1相位， 朝另一方向旋轉上述螺旋狀砂輪，將上述螺旋狀砂輪 的另一方刃面和被加工齒輪的另一方齒面或上述修整器的 另一方刃面接觸時的上述螺旋狀砂輪的相位記憶成第2相 位， 算出上述第1相位和上述第2相位之間的上述螺旋狀 砂輪中間相位， 調整上述螺旋狀砂輪的相位使被加工齒輪的齒頂或上 述修整器的刀尖配置在上述中間相位。 用以解決上述課題之第3發明相關的齒輪磨床是一種 使螺旋狀砂輪和被加工齒輪在咬合狀態下旋轉，對該被加 工齒輪進行硏磨加工的齒輪磨床，其特徵爲，具備： 對螺旋狀砂輪進行修整的修整器； 對旋轉的上述螺旋狀砂輪的側面照射雷射光，對該側 面的凹凸量進行測定的雷射式位移感測器； 根據上述雷射式位移感測器所測定的凹凸量，對上述 螺旋狀砂輪的刃槽位置進行檢測的刃槽位置檢測部； 執行上述螺旋狀砂輪的相位對準，使上述刃槽位置檢 測部所檢測出的刃槽位置和被加工齒輪的齒頂或上述修整 器的刀尖成相向的粗相位對準手段； 朝兩方向旋轉經上述粗相位對準手段相位對準後的上 述螺旋狀砂輪，對上述螺旋狀砂輪的各別刃面和被加工物 的兩齒面或上述修整器的兩刃面接觸時的上述螺旋狀砂輪 -8- 201111077 各別相位進行記憶的相位記億部； 對上述相位記憶部所記憶的上述螺旋狀砂輪的各別相 位間的中間相位進行算出的中間相位算出部；及 執行上述螺旋狀砂輪的相位對準，使被加工齒輪的齒 頂或上述修整器的刀尖配置在上述中間相位算出部所算出 之中間相位的精密相位對準手段。 〇 [發明效果] 根據本發明相關的螺旋狀砂輪之相位對準方法及齒輪 磨床時，在對該螺旋狀砂輪的相位進行調整使根據其側面 凹凸量所算出的螺旋狀砂輪刃槽位置和被加工齒輪的齒頂 或上述修整器的刀尖成相向之後，從該狀態，根據螺旋狀 砂輪對被加工齒輪或修整器的刃面接觸算出中間相位，再 加上，透過調整螺旋狀砂輪的相位，使被加工齒輪的齒頂 或上述修整器的刀尖配置在該中間相位，能夠縮短全體相 〇 位調整所需要的時間’因此能夠高速執行螺旋狀砂輪相對 於被加工齒輪或修整器的相位對準。 【實施方式】 [發明之最佳實施形態] 以下’使用圖面對本發明相關的螺旋狀砂輪之相位對 準方法進行詳細說明。 [實施例] -9- 201111077 應用本發明相關螺旋狀砂輪之相位對準方法的齒輪磨 床1 ’如第2圖所示利用桶形的螺旋狀砂輪1 4對內齒輪 素材的工件（被加工齒輪）W進行硏磨，再加上，如第1 圖所示’又具有可利用碟形修整器3 2對該螺旋狀砂輪1 4 進行修整的修整功能。 如第1圖及第2圖所示，齒輪磨床1支撐有可移動並 且可旋繞的砂輪頭11。該砂輪頭11可旋轉地支撐有主軸 1 2，該主軸1 2的前端形成有砂輪心軸1 3。接著，砂輪心 軸1 3的前端，可裝脫地安裝有螺旋狀砂輪1 4。即，藉由 驅動砂輪頭1 1，就可透過主軸1 2的砂輪心軸1 3旋轉驅 動螺旋狀砂輪1 4。 砂輪頭Π的正面，可旋轉地支撐有旋轉平台21，該 旋轉平台21的上面，透過未圖示的安裝固定具可裝脫地 安裝有工件W。即，藉由驅動旋轉平台21，就可旋轉驅 動工件W。 旋轉平台2 1的側方，可移動地支撐有修整器驅動部 31，該修整器驅動部31，安裝有可裝脫的碟形修整器 3 2。即，藉由驅動修整器驅動部3 1，就可旋轉驅動碟形 修整器3 2。 螺旋狀砂輪1 4的側方，設有雷射式位移感測器4 1。 該雷射式位移感測器4 1是採用應用三角測量的方式，以 投光透鏡所聚光的半導體雷射光照射測定對象物，將該測 定對象物所反射的雷射光聚焦在光位置檢測元件上，對該 焦點位置進行檢測，藉此測定出至測定對象物爲止的位移 -10- 201111077 即，如第3圖所示，將雷射式位移感測器41所聚光 的雷射光L照射在旋轉的螺旋狀砂輪1 4的側面刃幅中心 位置，就能夠測定出至其凹凸（刀尖及刃槽）爲止的距離 (凹凸量）。接著’如第4圖所示，雷射式位移感測器 4 1所測定的距離是經常顯示在砂輪旋轉時的測定中，該 顯示的波形凹部是螺旋狀砂輪1 4的刀尖，波形凸部是螺 0 旋狀砂輪1 4的刃槽。 此外，齒輪磨床1設有N C裝置（刃槽位置檢測部、 相位記憶部、中間相位算出部）50。該NC裝置50，例如 是連接在砂輪頭1 1、旋轉平台2 1、修整器驅動部3 1、雷 射式位移感測器41等，構成爲根據輸入的工件各種基本 條件或加工條件，進行螺旋狀砂輪1 4的工件W硏磨控 制，或進行碟形修整器32的螺旋狀砂輪1 4修整控制，同 時在上述硏磨時或修整時的咬合（齒對準）之前，先進行 〇 螺旋狀砂輪14相對於工件W或碟形修整器3 2的相位調 整（粗相位對準手段、精密相位對準手段）。 因此，當利用螺旋狀砂輪1 4對工件W進行硏磨時， 首先’如第2圖所示，將螺旋狀砂輪14移動至安裝在旋 轉平台2 1的工件W內，然後旋轉螺旋狀砂輪1 4。 其次，朝旋轉的螺旋狀砂輪1 4照射雷射式位移感測 器4 1的雷射光L。如此一來，就會連續地測定出至螺旋 狀砂輪14凹凸爲止的距離，如第4圖所示，以時間經過 的同時顯示其所測定至凹凸爲止的距離。此時，所顯示的 -11 - 201111077 波形凹部是被判定爲至螺旋狀砂輪1 4刀尖爲止的距離， 同時波形凸部是被判定爲至螺旋狀砂輪1 4刃槽爲止的距 離。 接著’根據該測定結果，算出螺旋狀砂輪1 4的刃槽 中心位置，如第5圖所示，調整螺旋狀砂輪14的相位 (粗相位調整）使其刃槽中心位置和工件W的齒頂成相 向。另外，調整螺旋狀砂輪14的位置，使工件W的齒頂 比螺旋狀砂輪1 4的刀尖還若干位於刃槽側（螺旋狀砂輪 1 4的中心側）。 其次’從上述粗相位對準狀態，如第6 ( a )圖所 示，將螺旋狀砂輪1 4正轉，使其一方的刃面接觸工件W 一方的齒面。如上述，當螺旋狀砂輪1 4接觸工件W時， 未圖示的接觸感測器就會檢測出此時的螺旋狀砂輪1 4的 相位（第1相位），記憶在N C裝置5 0。 再加上’如第6 ( b )圖所示，將螺旋狀砂輪14逆 轉，使其另一方的刃面接觸工件W另一方的齒面。如上 述，當螺旋狀砂輪1 4接觸工件W時，上述接觸感測器就 會檢測出此時的螺旋狀砂輪14的相位（第2相位），記 億在NC裝置50。 接著，由NC裝置50從正轉時及逆轉時與工件w接 觸時所記憶的2個螺旋狀砂輪丨4相位算出其中間的相位 即中間相位後，如第6 ( c )圖所示，就調整螺旋狀砂輪 1 4的相位（精密相位對準）使工件W的齒頂配置在所算 出的中間相位。其次’以該精密相位對準狀態，使螺旋狀 -12- 201111077 砂輪14咬合工件W，然後進行螺旋狀砂輪1 4和工件 的同步旋轉，就能夠使螺旋狀砂輪1 4的刃面硏磨工件 的齒面。 於此，當使用螺旋狀砂輪1 4對指定數量的工件W 行硏磨時，其刃面會磨損導致硏磨效率降低，因此需要 碟形修整器3 2定期進行螺旋狀砂輪1 4的修整。 於是，以碟形修整器3 2進行螺旋狀砂輪14的修 Q 時，首先，如第1圖所示，將螺旋狀砂輪14移動至碟 修整器3 2側，然後旋轉螺旋狀砂輪1 4。 其次，朝旋轉的螺旋狀砂輪1 4照射雷射式位移感 器4 1的雷射光L。如此一來，就會連續地測定出至螺 狀砂輪14凹凸爲止的距離，如第4圖所示，以時間經 的同時顯示其所測定至凹凸爲止的距離。此時，所顯示 波形凹部是被判定爲至螺旋狀砂輪1 4刀尖爲止的距離 同時波形凸部是被判定爲至螺旋狀砂輪14刃槽爲止的 〇 離。 接著’根據該測定結果，算出螺旋狀砂輪1 4的刃 中心位置，如第7圖所示，調整螺旋狀砂輪1 4的相 (粗相位調整）使其刃槽中心位置和碟形修整器3 2的 尖成相向。另外，調整螺旋狀砂輪1 4的位置，使碟形 整器32的刀尖比螺旋狀砂輪丨4的刀尖還若干位於刃槽 (螺旋狀砂輪1 4的中心側）。 其次’從上述粗相位對準狀態，如第8 ( a )圖 示，將螺旋狀砂輪1 4正轉，使其一方的刃面接觸碟形 W W 進 由 整 形 測 旋 過 的 j 距 槽 位 刀 修 側 所 修 -13- 201111077 整器3 2 —方的刃面。如上述，當螺旋狀砂輪1 4接觸碟形 修整器3 2時，未圖示的接觸感測器就會檢測出此時的螺 旋狀砂輪14的相位（第1相位），記憶在N C裝置5 〇 ° 再加上，如第8 ( b )圖所示’將螺旋狀砂輪 Μ逆 轉，使其另一方的刃面接觸碟形修整器32另一方的刃 面。如上述，當螺旋狀砂輪14接觸碟形修整器32時’上 述接觸感測器就會檢測出此時的螺旋狀砂輪1 4的相位 (第2相位），記憶在NC裝置50。 接著，由NC裝置50從正轉時及逆轉時與碟形修整 器3 2接觸時所記憶的2個螺旋狀砂輪1 4相位算出其中間 的相位即中間相位後，如第8 ( c )圖所示，就調整螺旋 狀砂輪1 4的相位（精密相位對準）使碟形修整器3 2的刃 面配置在所算出的中間相位。其次，以該精密相位對準狀 態，使螺旋狀砂輪1 4咬合碟形修整器32，然後旋轉碟形 修整器3 2，就能夠使碟形修整器3 2的刃面修整螺旋狀砂 輪1 4的刃面。 另，本實施例中，本發明相關的螺旋狀砂輪之相位對 準方法是應用在對內齒輪素材的工件進行硏磨的齒輪磨 床，但也可應用在對外齒輪素材的工件進行硏磨的齒輪磨 床。 因此，根據本發明相關的螺旋狀砂輪之相位對準方法 及齒輪磨床時，在硏磨時或修整時螺旋狀砂輪1 4和工件 W或碟形修整器3 2的咬合之前，先在進行螺旋狀砂輪} 4 相對於工件W或碟形修整器3 2的相位對準時，調整該螺 -14- 201111077 旋狀砂輪1 4的相位’使螺旋狀砂輪1 4的刃槽中心位置和 工件W的齒頂或碟形修整器3 2的刀尖成相向後’從該粗 相位對準狀態，利用螺旋狀砂輪1 4對工件W或碟形修整 器3 2的刃面接觸算出中間相位，再加上，精密調整螺旋 狀砂輪1 4的相位，使工件W的齒頂或碟形修整器3 2的 刀尖配置在該中間相位。如此一來，就能夠縮短全體相位 調整所需要的時間，因此能夠高速執行螺旋狀砂輪1 4相 0 對於工件W或碟形修整器32的相位對準。 [產業上之可利用性] 本發明是可應用在短縮非加工時間的齒輪磨床。 【圖式簡單說明】 第1圖爲應用本發明一實施例相關螺旋狀砂輪之相位 對準方法的齒輪磨床槪略構成圖，表示螺旋狀砂輪由碟形 〇 修整器進行修整時的狀態圖。 第2圖爲表示工件由螺旋狀砂輪進行硏磨時的狀態 圖。 第3圖爲表示雷射式位移感測器對螺旋狀砂輪照射雷 射光時的狀態圖。 第4圖爲表示雷射式位移感測器所測定至螺旋狀砂輪 爲止的距離變化圖。 第5圖爲表示螺旋狀砂輪相對於工件的粗相位對準狀 態圖。 -15- 201111077 第6圖爲表示螺旋狀砂輪相對於工件的精密相位對準 狀態圖，（a )圖爲表示螺旋狀砂輪的一方刃面接觸工件 的一方齒面時的狀態圖，（b )圖爲表示螺旋狀砂輪的另 一方刃面接觸工件的另一方齒面時的狀態圖，（c )圖爲 表示工件的齒頂配置在螺旋狀砂輪兩刃面接觸時之相位間 的中間位置時的狀態圖。 第7圖爲表示螺旋狀砂輪相對於碟形修整器的粗相位 對準狀態圖。 第8圖爲表示螺旋狀砂輪相對於碟形修整器的精密相 位對準狀態圖，（a )圖爲表示螺旋狀砂輪的一方刃面接 觸碟形修整器的一方刃面時的狀態圖，（b )圖爲表示螺 旋狀砂輪的另一方刃面接觸碟形修整器的另一方刃面時的 狀態圖，（c)圖爲表示碟形修整器的刀尖配置在螺旋狀 砂輪兩刃面接觸時之相位間的中間位置時的狀態圖。 【主要元件符號說明] 1 :齒輪磨床 1 1 :砂輪頭 1 2 :主軸 1 3 :砂輪心軸 1 4 :螺旋狀砂輪 2 1 :旋轉平台 3 1 :修整器驅動部 3 2 :碟形修整器 -16- 201111077 4 1 :雷射式位移感測器 50 : NC裝置 W :工件 L :雷射光 〇201111077 VI. Description of the Invention [Technical Field] The present invention relates to a phase of a spiral grinding wheel before being trimmed by a helical grinding wheel with respect to a machined gear, or a spiral grinding wheel before trimming with respect to a dresser A quasi-method and a gear grinding machine to which the phase alignment method is applied. [Prior Art] A gear grinding machine that hones a workpiece, which is a machined gear after heat treatment, using a honing tool, that is, a spiral grinding wheel, can be efficiently machined to trim the tooth surface of the workpiece. The gear grinding machine is in a state in which the spiral grinding wheel and the workpiece are engaged, and the synchronous grinding is performed to perform the honing of the workpiece. Therefore, if the nip accuracy is insufficient, the tooth surface of the workpiece may be unevenly honed or may cause an excessive load. Apply to the spiral grinding wheel to reduce the life of the grinding wheel. Therefore, for such a gear grinding machine, in order to accurately engage the helical Q-wheel and the workpiece, the phase alignment of the phase alignment of the two is performed before the occlusion of the honing, so that the cutting edge of the spiral grinding wheel (bump) ) and the cogging (concavity and convexity) of the workpiece become an appropriate phase relationship. As described above, the method of performing phase alignment of the spiral grinding wheel and the workpiece is disclosed, for example, in Patent Document 1. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Laid-Open Patent Publication No. JP-A No. 2003-165-025-A SUMMARY OF THE INVENTION - 5 - 201111077 [Problems to be Solved by the Invention] The above-described previous phase alignment method is 'first' (Coarse phase alignment) After the spiral grinding wheel and the workpiece are respectively concave and convex, the workpiece is rotated forward and reversed so that the two tooth surfaces contact the opposite spiral blade surface, and the contact position data of each tooth surface is fine according to the contact. Phase alignment of the helical grinding wheel and the workpiece (precise phase alignment). However, in the previous method described above, 'coarse phase alignment' is only that the tip of the helical grinding wheel and the tip of the workpiece interfere with each other. The tooth top based on this is arranged sideways in the edge groove of the spiral grinding wheel. When the workpiece is toothed (when the precise phase is aligned), the workpiece rotation control becomes complicated. The time until the contact is measured becomes long, and as a result, the phase may be caused. The time until the final completion becomes longer. In addition, the gear grinding machine hones the workpiece using the spiral trimmed by the dresser, so that the grinding wheel and the workpiece are aligned not only during honing, but also the phase alignment of the grinding wheel and the dresser during trimming, the same problem as above produce. Accordingly, the present invention has been made to solve the above problems and to provide a phase alignment method and a bed for a spiral grinding wheel which can align a phase of a spiral grinding wheel with respect to a workpiece to be processed at a high speed. [Means for Solving the Problem] The spiral sand level alignment method according to the first invention for solving the above problem is a spiral sand wheel before the honing process, and the phase of the spiral sand is to be avoided, and the workpiece is to be avoided. The surface contact is such that the phase of the inspection-aligned grinding wheel is clear, and the phase wheel of the mesh gear or the gear grinding wheel is relatively -6 - 201111077 on the machined gear, or the phase of the spiral grinding wheel before the dressing of the above-mentioned spiral grinding wheel relative to the dresser a quasi-method characterized in that the side surface of the rotating spiral grinding wheel is irradiated with laser light from a laser displacement sensor, and the amount of unevenness on the side surface is measured, and the position of the edge of the spiral grinding wheel is calculated based on the amount of the unevenness. Adjusting the phase of the spiral grinding wheel so that the cutting edge position is opposite to the tooth tip of the processed gear or the tip of the dresser, q rotating the spiral grinding wheel in two directions, so that one blade surface of the spiral grinding wheel is contacted Machining one tooth surface of the gear or one blade surface of the dresser, and then making the other edge of the spiral grinding wheel The surface is in contact with the other tooth surface of the processed gear or the other blade surface of the dresser, and the phase of the spiral grinding wheel is adjusted so that the tooth tip of the processed gear or the tip of the dresser is disposed at the contact of the spiral grinding wheel. The intermediate phase between the phases. The phase Q alignment method of the spiral grinding wheel according to the second invention for solving the above-mentioned problems is a spiral grinding wheel before the honing processing of the spiral grinding wheel, or a spiral shape before the dressing of the spiral grinding wheel. a method for aligning a grinding wheel with respect to a dresser, characterized in that: a side surface of the rotating spiral grinding wheel is irradiated with laser light from a laser displacement sensor, and the amount of unevenness on the side surface is measured, and the above-mentioned unevenness amount is calculated. Positioning the spiral groove of the spiral grinding wheel, adjusting the phase of the spiral grinding wheel so that the cutting edge position is opposite to the tooth tip of the processed gear or the tip of the dresser, and rotating the spiral grinding wheel in one direction to rotate the spiral grinding wheel 201111077 The phase of the spiral grinding wheel when one of the blade faces is in contact with one of the tooth faces of the machined gear or one of the blade faces of the dresser is stored in the first phase, and the spiral wheel is rotated in the other direction to rotate the spiral wheel. When the other blade surface of the grinding wheel is in contact with the other tooth surface of the machined gear or the other blade surface of the dresser The phase of the spiral grinding wheel is stored in the second phase, and the intermediate phase of the spiral grinding wheel between the first phase and the second phase is calculated, and the phase of the spiral grinding wheel is adjusted so that the tooth tip of the gear to be processed or the dresser The tip of the tool is arranged in the above intermediate phase. A gear grinding machine according to a third invention for solving the above-mentioned problems is a gear grinding machine that rotates a spiral grinding wheel and a machined gear in a nip state, and honing the machined gear, and is characterized in that: a trimmer for trimming the grinding wheel; a laser displacement sensor for irradiating the side surface of the rotating spiral grinding wheel with the laser beam, and measuring the amount of unevenness of the side surface; and measuring according to the above-described laser displacement sensor a blade groove position detecting portion that detects a blade groove position of the spiral grinding wheel; performs phase alignment of the spiral grinding wheel, and causes a blade groove position detected by the blade groove position detecting portion and a processed gear The tip of the tooth or the tip of the dresser is opposite to the coarse phase alignment means; the spiral grinding wheel phase-aligned by the coarse phase alignment means is rotated in two directions, and the respective blade faces of the spiral grinding wheel are The above-mentioned spiral grinding wheel when the two tooth surfaces of the workpiece or the two-blade surface of the dresser are in contact with each other - 8 2011-11077 And an intermediate phase calculating unit that calculates an intermediate phase between the respective phases of the spiral grinding wheel stored in the phase memory unit; and performs phase alignment of the spiral grinding wheel to correct a tooth tip of the processed gear or the trimming The tool tip of the device is disposed in the precise phase alignment means of the intermediate phase calculated by the intermediate phase calculating unit.发明 [Effect of the Invention] According to the phase alignment method of the spiral grinding wheel and the gear grinding machine according to the present invention, the phase of the spiral grinding wheel is adjusted so that the position of the spiral grinding wheel edge groove calculated based on the amount of the surface unevenness is After the tooth tip of the machining gear or the tip of the dresser is facing, from this state, the intermediate phase is calculated according to the blade surface contact of the machining gear or the dresser by the spiral grinding wheel, and the phase of the spiral grinding wheel is adjusted. By arranging the tip of the gear to be machined or the tip of the dresser in the intermediate phase, the time required for the adjustment of the entire phase can be shortened. Therefore, the phase of the spiral grinding wheel relative to the gear or the dresser can be executed at high speed. alignment. [Embodiment] [Best Embodiment of the Invention] Hereinafter, a phase alignment method of a spiral grinding wheel according to the present invention will be described in detail using the drawings. [Embodiment] -9- 201111077 Gear grinding machine 1 using the phase alignment method of the spiral grinding wheel according to the present invention as shown in Fig. 2 using a barrel-shaped spiral grinding wheel 14 for the workpiece of the internal gear material (machined gear W is honed, and, as shown in Fig. 1, 'there is a trimming function that can be used to trim the spiral grinding wheel 14 by the dish dresser 32. As shown in Figs. 1 and 2, the gear grinding machine 1 supports a movable and rotatable grinding wheel head 11. The grinding wheel head 11 rotatably supports a main shaft 12, and a front end of the main shaft 12 is formed with a grinding wheel spindle 13. Next, a spiral grinding wheel 14 is detachably attached to the front end of the grinding wheel spindle 13. That is, by driving the grinding wheel head 1 1, the spiral grinding wheel 14 can be driven to rotate through the grinding wheel spindle 13 of the main shaft 12. A rotating platform 21 is rotatably supported on the front surface of the grinding wheel head, and the workpiece W is detachably attached to the upper surface of the rotating platform 21 via a mounting fixture (not shown). Namely, by driving the rotary stage 21, the workpiece W can be rotationally driven. On the side of the rotary table 2, a dresser driving portion 31 is movably supported, and the dresser driving portion 31 is mounted with a detachable dish dresser 32. That is, the disk dresser 32 can be rotationally driven by driving the dresser driving portion 3 1. A side of the spiral grinding wheel 14 is provided with a laser displacement sensor 41. The laser displacement sensor 41 is configured to apply a triangulation method, and irradiates a measurement object with semiconductor laser light collected by a light projecting lens, and focuses the laser light reflected by the measurement object on the light position detecting element. The focus position is detected, and the displacement to the measurement target is measured. -10- 201111077 That is, as shown in FIG. 3, the laser light L collected by the laser displacement sensor 41 is irradiated. At the center position of the side edge of the rotating spiral grinding wheel 14, the distance (the amount of unevenness) up to the unevenness (the blade edge and the edge groove) can be measured. Then, as shown in FIG. 4, the distance measured by the laser displacement sensor 41 is often displayed in the measurement when the grinding wheel rotates, and the waveform concave portion of the display is the tip of the spiral grinding wheel 14 and the waveform is convex. The part is the edge groove of the screw 0 spiral grinding wheel 14. Further, the gear grinding machine 1 is provided with an N C device (blade position detecting unit, phase memory unit, intermediate phase calculating unit) 50. The NC device 50 is connected, for example, to the grinding wheel head 1 1 , the rotating platform 21 , the dresser driving unit 31, the laser displacement sensor 41, and the like, and is configured to perform various basic conditions or processing conditions of the workpiece according to the input. The workpiece W of the spiral grinding wheel 14 is honed, or the spiral grinding wheel of the dish dresser 32 is trimmed, and the helix is first performed before the honing or trimming (tooth alignment). The phase adjustment of the grinding wheel 14 with respect to the workpiece W or the dish dresser 32 (coarse phase alignment means, precise phase alignment means). Therefore, when the workpiece W is honed by the spiral grinding wheel 14, first, as shown in Fig. 2, the spiral grinding wheel 14 is moved to the workpiece W mounted on the rotary table 21, and then the spiral grinding wheel 1 is rotated. 4. Next, the laser light L of the laser displacement sensor 4 1 is irradiated toward the rotating spiral grinding wheel 14. As a result, the distance to the unevenness of the spiral grinding wheel 14 is continuously measured, and as shown in Fig. 4, the distance measured until the unevenness is displayed while the time passes. At this time, the displayed -11 - 201111077 waveform concave portion is the distance determined to be the cutting edge of the spiral grinding wheel 14 , and the waveform convex portion is determined to be the distance to the cutting edge of the spiral grinding wheel 14 . Then, based on the measurement result, the center position of the blade groove of the spiral grinding wheel 14 is calculated, and as shown in Fig. 5, the phase (coarse phase adjustment) of the spiral grinding wheel 14 is adjusted so that the center position of the blade groove and the tip of the workpiece W In the opposite direction. Further, the position of the spiral grinding wheel 14 is adjusted so that the tip of the workpiece W is located on the blade groove side (the center side of the spiral grinding wheel 14) more than the blade edge of the spiral grinding wheel 14. Next, from the above-described rough phase alignment state, as shown in Fig. 6(a), the spiral grinding wheel 14 is rotated forward so that one blade surface contacts the tooth surface of the workpiece W. As described above, when the spiral grinding wheel 14 contacts the workpiece W, the contact sensor (not shown) detects the phase (first phase) of the spiral grinding wheel 14 at this time, and stores it in the N C device 50. Further, as shown in Fig. 6(b), the spiral grinding wheel 14 is reversed so that the other blade surface contacts the tooth surface of the other side of the workpiece W. As described above, when the spiral grinding wheel 14 contacts the workpiece W, the contact sensor detects the phase (second phase) of the spiral grinding wheel 14 at this time, which is recorded in the NC device 50. Next, the NC device 50 calculates the intermediate phase from the phase of the two spiral grinding wheels 4 stored in the normal rotation and the reverse contact with the workpiece w, as shown in the sixth (c) diagram. The phase (precise phase alignment) of the spiral grinding wheel 14 is adjusted so that the crest of the workpiece W is placed in the calculated intermediate phase. Secondly, in the precise phase alignment state, the spiral -12-201111077 grinding wheel 14 is engaged with the workpiece W, and then the spiral grinding wheel 14 and the workpiece are synchronously rotated, so that the blade surface of the spiral grinding wheel 14 can be honed. Tooth surface. Here, when a predetermined number of workpieces W are honed using the spiral grinding wheel 14, the blade surface is worn to cause a reduction in the honing efficiency, so that the dish dresser 32 is required to periodically perform the dressing of the spiral grinding wheel 14. Then, when the disc dresser 32 performs the rubbing of the spiral grinding wheel 14, first, as shown in Fig. 1, the spiral grinding wheel 14 is moved to the side of the disc dresser 32, and then the spiral grinding wheel 14 is rotated. Next, the laser light L of the laser displacement sensor 4 1 is irradiated toward the rotating spiral grinding wheel 14. As a result, the distance to the unevenness of the spiral grinding wheel 14 is continuously measured, and as shown in Fig. 4, the distance measured to the unevenness is displayed while the time passes. At this time, the displayed waveform concave portion is determined to be the distance to the cutting edge of the spiral grinding wheel 14 while the waveform convex portion is determined to be the cutting edge to the cutting edge of the spiral grinding wheel 14. Then, based on the measurement result, the center position of the blade of the spiral grinding wheel 14 is calculated, and as shown in Fig. 7, the phase of the spiral grinding wheel 14 (rough phase adjustment) is adjusted so that the center position of the blade groove and the dish trimmer 3 The tip of 2 is opposite. Further, the position of the spiral grinding wheel 14 is adjusted so that the cutting edge of the dish shaper 32 is located more than the cutting edge of the spiral grinding wheel rim 4 in the cutting groove (the center side of the spiral grinding wheel 14). Secondly, from the above-mentioned coarse phase alignment state, as shown in the eighth (a) diagram, the spiral grinding wheel 14 is rotated forward, so that one blade surface contacts the dish WW into the j-slot cutter which is rotated by the shaping measurement. Repairing the side repair-13- 201111077 The whole machine 3 2 - the side of the blade. As described above, when the spiral grinding wheel 14 contacts the dish dresser 32, the contact sensor (not shown) detects the phase (first phase) of the spiral grinding wheel 14 at this time, and is memorized in the NC device 5. 〇° plus, as shown in Fig. 8(b), reverse the spiral grinding wheel so that the other blade surface contacts the other blade surface of the dish dresser 32. As described above, when the spiral grinding wheel 14 contacts the dish dresser 32, the contact sensor detects the phase (second phase) of the spiral grinding wheel 14 at this time, and is stored in the NC unit 50. Next, the phase of the two spiral grinding wheels 14 memorized when the NC device 50 is in contact with the dish dresser 32 during the forward rotation and the reverse rotation is calculated as the intermediate phase, as shown in the eighth (c) diagram. As shown, the phase (precise phase alignment) of the spiral grinding wheel 14 is adjusted so that the blade surface of the dish dresser 32 is placed in the calculated intermediate phase. Next, in the precise phase alignment state, the spiral grinding wheel 14 is engaged with the dish dresser 32, and then the dish dresser 32 is rotated, so that the blade surface of the dish dresser 32 can be trimmed by the spiral grinding wheel 14 The face of the blade. In addition, in the present embodiment, the phase alignment method of the spiral grinding wheel according to the present invention is a gear grinding machine applied to honing a workpiece of an internal gear material, but can also be applied to a gear for honing a workpiece of an external gear material. grinder. Therefore, according to the phase alignment method of the spiral grinding wheel and the gear grinding machine according to the present invention, the spiral is first performed before the squeezing or trimming of the spiral grinding wheel 14 and the workpiece W or the dish dresser 32. Shaped grinding wheel} 4 When the phase alignment of the workpiece W or the dish dresser 32 is aligned, adjust the phase of the screw-14-201111077 rotary grinding wheel 14 to make the center position of the spiral groove of the spiral grinding wheel 14 and the workpiece W The tip of the addendum or the dish dresser 32 is opposite to the rear side. From the coarse phase alignment state, the intermediate phase is calculated by the blade contact of the workpiece W or the dish dresser 32 by the spiral grinding wheel 14, and then added. Upper, the phase of the spiral grinding wheel 14 is precisely adjusted so that the tip of the workpiece W or the tip of the dish dresser 32 is disposed in the intermediate phase. As a result, the time required for the overall phase adjustment can be shortened, so that the phase alignment of the spiral grinding wheel 14 phase 0 with respect to the workpiece W or the dish dresser 32 can be performed at high speed. [Industrial Applicability] The present invention is a gear grinding machine which can be applied to a short non-machining time. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the configuration of a gear grinding machine to which a phase alignment method of a helical grinding wheel according to an embodiment of the present invention is applied, showing a state in which a spiral grinding wheel is trimmed by a dish-shaped dresser. Fig. 2 is a view showing a state in which the workpiece is honed by a spiral grinding wheel. Fig. 3 is a view showing a state in which a laser displacement sensor irradiates a helical grinding wheel with laser light. Fig. 4 is a view showing a change in distance from a laser displacement sensor to a spiral grinding wheel. Figure 5 is a diagram showing the coarse phase alignment of the spiral grinding wheel with respect to the workpiece. -15- 201111077 Fig. 6 is a view showing a state of precise phase alignment of a spiral grinding wheel with respect to a workpiece, and (a) is a state diagram showing a state in which one blade surface of the spiral grinding wheel contacts one tooth surface of the workpiece, (b) The figure shows a state in which the other blade surface of the spiral grinding wheel contacts the other tooth surface of the workpiece, and (c) shows that the tooth top of the workpiece is disposed at the intermediate position between the phases when the two surfaces of the spiral grinding wheel are in contact. State diagram. Fig. 7 is a view showing a state in which the spiral grinding wheel is aligned with respect to the coarse phase of the dish dresser. Fig. 8 is a view showing a state of precise phase alignment of the spiral grinding wheel with respect to the dish dresser, and Fig. 8(a) is a view showing a state in which one blade surface of the spiral grinding wheel contacts one blade surface of the dish dresser, ( b) The figure shows a state in which the other blade surface of the spiral grinding wheel contacts the other blade surface of the dish dresser, and (c) shows that the blade tip of the dish dresser is disposed on the two-blade surface of the spiral grinding wheel. State diagram at the middle of the phase between phases. [Main component symbol description] 1 : Gear grinding machine 1 1 : Grinding wheel head 1 2 : Spindle 1 3 : Grinding wheel spindle 1 4 : Spiral grinding wheel 2 1 : Rotating table 3 1 : Dresser driving part 3 2 : Dish dresser -16- 201111077 4 1 : Laser Displacement Sensor 50 : NC Device W : Workpiece L : Laser Beam