1378834 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種使用於例如轉塔型衝床（Turret Punch Press)等衝床之衝壓模具，更詳而言之，係有關於 一種在衝壓刀部再研磨後可進行高度調整之衝壓模具。 【先前技術】 使用於轉塔型衝床等衝床之衝壓模具，係具備以可上 下自由動作之方式支撐於例如上部轉塔等之衝床固定座 (holder)之圓筒形狀衝塵導件（guide)，而在此衝壓導件 中’係以可上下自由動作之方式裝設有上部衝壓驅動器 (driver)。再者，在前述上部衝壓驅動器内，以可上下自 由動作之方式裝設有—體具備有將衝愿刀部形成於下端 之衝壓體（b_的下部衝壓_器或—體具財衝屢 之下部衝壓驅動器，而此下部衝_動器係以可上: 之方式螺合在前述上部衝壓驅動器。再者， °° 壓驅動器係一體設有以可自由滑動之方式卡八二二：部衝 衝壓導件之鍵溝如SlQt)的鍵。上述技“二在前述 專利文獻1及專利讀2。 ’、錢例如 在習知之衝麗模具中，由於上部衝廛驅 塵驅動器係以可相對地上下調整之方式螺合，^下部衝 ㈣刀部之磨耗而進行再研磨時，在上述 ^在由於 部分可容易修正， 故較理想。’ “研磨中縮翅的 然而’在習知之構成中，偶而會有鍵破損 述鍵的破損，係由於衝壓導件與下部衝壓驅動月形。上 、衡壓體 1378834 之間的微小間隙之存在，而使下部衝壓驅動器對於衝壓導 件相對地微細移動、微細轉動所致。然而，進行各種實驗 後發現，將上部衝壓驅動器與下部衝壓驅動器螺合時，若 前述上部衝壓驅動器之軸心與下部衝壓驅動器之軸心微量 偏移，則於藉由衝壓模具進行衝壓加工（衝切加工）時，由 於前述上部衝壓驅動器與下部衝壓驅動器之螺合部之螺紋 的接合所引起之分力產生作用、及由於在螺合部存在有齒 間隙（backlash)，導致下部衝壓驅動器對於上部衝壓驅動 器朝徑方向相對的微細移動。 (先前技術文獻） (專利文獻） (專利文獻1)日本特開2005-246393號公報 (專利文獻2)日本特開2006-142372號公報 【發明内容】 [發明所欲解決之課題] 本發明係為了解決上述問題而研創者，其目的係在提 供一種可藉由規限下部衝壓導件對於上部衝壓導件朝徑方 向相對的微細移動，而防止鍵之破損等的衝壓模具。 [解決課題之手段] 為了達成上述目的，本發明第1形態係一種衝壓模 具，係包括：筒狀衝壓導件；上部衝壓驅動器，以可上下 自由動作之方式裝設於前述衝壓導件；下部衝壓驅動器， 以可相對上下調整方式與前述上部衝壓驅動器螺合設置； 衝壓刀部，與前述下部衝壓驅動器一體或一體設於前述下 5 321831 1378834 部衝壓驅動器；鍵溝，設於前述衝壓導件，以規限前述下 部衝壓驅動器對於前述衝壓導件之相對轉動；鍵，與前述 鍵溝卡合，且設於前述下部衝壓驅動器；及密接嵌合部， 以可滑動之方式嵌合前述上部衝壓驅動器與下部衝壓驅動 器，以規.限前述上部衝壓驅動器與下部衝壓驅動器因為前 述螺合部之微小間隙而朝徑方向相對的微動。 依附於前述第1形態之本發明第2形態，係在前述衝 壓模具中，前述密接嵌合部係裝設於前述上部衝壓驅動器 及下部衝壓驅動器之上下兩端側；及將下部密接嵌合部之 直徑設成較上部密接嵌合部之直徑為大。 再者，為了達成上述目的，本發明第3形態係一種衝 壓模具，係包括：筒狀衝壓導件；上部衝塵驅動器，以可 上下自由動作之方式裝設於前述衝壓導件；下部衝壓驅動 器，以可相對上下調整方式與前述上部衝壓驅動器相對螺 合設置；衝壓刀部，與前述下部衝壓驅動器一體或一體設 於前述下部衝壓驅動器；鍵溝，設於前述衝壓導件，以規 限前述下部衝麼驅動/器對於前述衝壓導件之相對轉動； 鍵，與前述鍵溝卡合，且設於前述下部衝壓驅動器；及第 1密接嵌合部，以可滑動之方式嵌合前述上部衝壓驅動器 與前述衝壓導件，以規限前述上部衝壓驅動器與下部衝壓 驅動器因為前述螺合部之微小間隙而朝徑方向相對的微 動。 依附於前述第3形態之本發明第4形態之前述衝壓模 具復包括第2密接嵌合部，其係以可滑動之方式嵌合前述 6 321831 1378834 下部衝壓驅動器與前述衝壓導件，以規限前述上部衝壓驅 動器與下部衝壓驅動器因為前述螺合部之微小間隙而朝徑 方向相對的微動。 再者，為了達成上述目的，本發明第5形態係一種衝 壓模具，係包括··筒狀衝壓導件；上部衝壓驅動器，以可 上下自由動作之方式裝設於前述衝壓導件；下部衝壓驅動 器，以可相對上下調整之方式與前述上部衝壓驅動器螺合 設置；衝壓刀部，與前述下部衝壓驅動器一體或一體設於 前述下部衝壓驅動器；鍵溝，設於前述衝壓導件，以規限 前述下部衝壓驅動器對於前述衝壓導件之相對轉動；鍵， 與前述鍵溝卡合，且設於前述下部衝壓驅動器；及密接嵌 合部，以可滑動之方式嵌合前述上部衝壓驅動器與前述衝 壓導件，以規限前述上部衝壓驅動器與下部衝壓驅動器因 為前述螺合部之微小間隙而朝徑方向相對的微動。 [發明之功效] 根據上述第1形態及第2形態所記載之本發明衝壓模 具，係具備以可滑動之方式嵌合上部衝壓驅動器與下部衝 壓驅動器之密接嵌合部。再者，根據上述第3形態至第5 形態所記載之本發明衝壓模具，係具備以可滑動之方式嵌 合上部衝壓驅動器與衝壓導件之密接嵌合部、或以可滑動 之方式嵌合下部衝壓驅動器與衝壓導件之另一密接嵌合部 之任一者、或者具備該等雙方之密接嵌合部。因此，依據 上述第1形態至第5形態所記載之本發明，即使在前述上 部衝壓驅動器與下部衝壓驅動器之螺合部存在齒間隙，且 7 321831 1378834 於衝壓加工時有徑方向之分力產生作用時，亦可規限下部 衝壓驅動器對於前述上部衝壓驅動器朝徑方向相對的微細 移動，而可防止鍵之破損等。 【實施方式】 以下使用圖式說明本發明之實施形態。另外，關於衝 壓模具之整體構成，茲概要說明如下。 參照第1圖，本發明實施形態之衝壓模具1，係如同 例如轉塔型衝床等衝床（未圖示）之上部轉塔等，具備以可 上下動作之方式支撐於衝床固定座之圓筒狀衝壓導件3, 而在此衝壓導件3係以可上下自由動作之方式裝設有筒狀 之上部衝壓驅動器5。更詳而言之，在前述衝壓導件3之 上部，係裝設有環狀之保持環（retainer collar)7，而在 經由安裝螺絲等一體安裝於以可上下自由動作方式貫通此 保持環7之前述上部衝壓驅動器5之上端部之衝頭（head)9 與前述保持環7之間，係彈設有作為止動彈簧（stopper spring)之盤簧11。再者，在藉由將上述盤簧11重疊所形 成之密封空間内，係收容有油脂（grease)等之潤滑劑。 在位於前述衝壓導件3内之前述上部衝壓驅動器5之 下端部，係裝設有大徑的凸緣部5F。此外，在該上部衝壓 驅動器5,係與習知之衝壓模具相同地裝設有母螺絲部5S。 在前述上部衝壓驅動器5之前述母螺絲部5S，係以可 上下調整之方式螺合有下部衝壓驅動器13之公螺絲部 13S。藉由調整前述母螺絲部5S與公螺絲部13S之螺合， 並調整前述上部衝壓驅動器5與前述下部衝壓驅動器13之 8 321831 1378834 上下位置關係來進行衝壓模具1的高度調整。再者，在上 述下部衝壓驅動器13係於前述上部衝壓驅動器5中之凸緣 部5F下側裝設有大徑凸緣部13F，而在此凸緣部13F，係 以安裝螺絲等一體安裝有以可自由滑動方式密接卡合於形 成在前述衝壓導件3之上下方向之鍵溝3G的鍵15。再者， 在前述下部衝壓驅動器13之下部，係以安裝螺絲等一體安 裝有在下端部具備衝壓刀部之衝壓體17。 前述鍵15係在前述凸緣部13F之徑方向設置為較長， ^ 且相對於凸緣部13F—體固定成不動狀態。再者，鍵15與 前述鍵溝3G之密接卡合，係卡合成鍵15與鍵溝3G間之間 隙保持微米（micron)單位之極微小間隙者。 另外，在上述說明中，雖以個別設置下部衝壓驅動器 13.與衝壓體17之情形進行說明，惟亦可設計成將下部衝 壓驅動器13與衝壓體17預先設置為一體的結構。 在上述構成中，係在將板狀工件（work)之加工位置定 φ 位於與衝塵模具1成對的型模（die，未圖示）上之後，藉由 衝床之衝錘（ram，也就是striker)來打壓衝頭9，藉此對 -上述工件進行衝切加工者。如上述方式進行衝切加工時， 前述衝錘之打擊力，係從前述衝頭9經由上部衝壓驅動器 5之母螺絲部5S、下部衝壓驅動器13之公螺絲部13S而傳 遞至下部衝壓驅動器13。 此時，前述上部衝壓驅動器5之軸心與下部衝壓驅動 器13之軸心一致之情形中，因母螺絲部5S之谷部、山部 與公螺絲部13S之山部、谷部之卡合關係，作用於徑方向 9 321831 1378834 之分力會彼此抵銷，而使下部衝壓驅動器13不會對於上部 衝壓驅動器5朝徑方向相對的微細移動。然而，上部衝壓 驅動器5之軸心與下部衝壓驅動器13之軸心，若因為在螺 合部存在齒間隙而導致微量偏移，則於藉由前述衝錘打擊 (打壓）衝頭9而進行衝壓加工時，下部衝壓驅動器13會對 於上部衝壓驅動器5朝徑方向相對的微細移動，以修正前 述微量之位置偏移。 下部衝壓驅動器13對於前述上部衝壓驅動器5朝徑方 | 向相對的微細移動之移動方向為鍵15之長度方向，亦即相 對於衝壓導件3之鍵溝3G之出入方向（在第1圖中為左右 方向）時，僅前述鍵溝3G與鍵15之卡合關係產生微量變 化，不會對鍵15造成損傷。 然而，下部衝壓驅動器13對於前述上部衝壓驅動II 5 朝徑方向相對的微細移動方向對前述鍵15之長度方向為 正交之水平方向、換言之相對於前述鍵溝3G之長度方向為 正交之鍵溝3G之寬度方向（在第1圖中為與紙面垂直方向）籲 時，其移動不會大於前述鍵溝3G與鍵15之間之極微細間 隙，因此有其大負載作用在鍵15，有時會有鍵15破損情 形。 因此，在本實施形態之衝壓模具1之構成中，即使在 前述上部衝壓驅動器5與下部衝壓驅動器13之螺合部存在 有齒間隙時，亦可在將前述上部衝壓驅動器5與下部衝壓 驅動器13螺合時使兩方之軸心一致。 更詳而言之，在前述上部衝壓驅動器5之下部，係形 10 321831 1378834 成有較前述母螺絲部5S為大徑且以高精密度加工之密接 嵌合孔19，而在前述下部衝壓驅動器13之下部較前述凸 緣部13F靠上側處，係設有與前述密接嵌合孔19對應而以 高精密度加工之高精密度嵌合部21。再者，前述密接嵌合 孔19與高精密度嵌合部21係以可滑動之方式嵌合而構成 密接嵌合部23。 以可滑動方式嵌合前述密接嵌合孔19與高精密度嵌 合部21之密接嵌合部23，係為在密接嵌合孔19與高精密 度嵌合部21之間保持微米單位之極微細間隙而以可自由 滑動之方式密接嵌合者，且因為存在於前述上部衝壓驅動 器5與下部衝壓驅動器13之螺合部之微小齒間隙，而發揮 限制下部衝壓驅動器13對於上部衝壓驅動器5朝徑方向相 對的微動的作用者。亦即，前述密接嵌合部23之微小間 隙，係設定成較前述螺合部之齒間隙更微小的間隙（微米單 位之間隙）者。 藉由上述構成，將下部衝壓驅動器13之公螺絲部13S 螺合於前述上部衝壓驅動器5之母螺絲部5S時，即使下部 衝壓驅動器13之軸心相對於上部衝壓驅動器5之軸心因為 齒間隙之存在而微量偏移時，亦會進行前述母螺絲部5S與 公螺絲部13S之螺合，且若上部衝壓驅動器5之密接嵌合 孔19與下部衝壓驅動器13之高精密度嵌合部21以可滑動 之方式密接嵌合，則上部衝壓驅動器5之轴心與下部衝壓 驅動器13之軸心將會一致。 因此，藉由衝錘打壓衝頭9，如前所述地進行衝壓加 η 321831 ^78834 工時，會因為上部衝壓驅動器5中之母螺絲部55之山部、 谷部與下部衝壓驅動器13中之公螺絲部13S之谷部'山部 之卡合關係而使徑方向之分力產生作用。然而，由於前述 上部衝壓驅動器5之軸心與下部衝壓驅動器13之軸心係藉 由前述密接嵌合部23之密接嵌合而一致，因此徑方向之^ 力彼此抵銷，而不會對鍵15造成損傷等。 另外，即使下部衝壓驅動器13因為直徑方向之分力而 對於上。P衝壓驅動器5有朝徑方向相對的微細移動之傾向 =，亦會在上部衝壓驅動器5與下部衝壓驅動器13之前述 密接嵌合部23規限前述微細移動，而可防止相對的微細移 動。 第2圖係為將第1圖所示密接嵌合孔19之直徑設為與 母螺絲部5S之谷徑（螺紋底部直徑）相等，且將高精密度嵌 &。卩21之直從设為與公螺絲部〗3s之外徑相等者，而i他 構成則與前述之第丨實施形態相同，故省略其詳細^說 明。在此構成中，/亦可發揮與前述實施形態相㈤之功效。 第3圖係為顯示第3實施形態者。在此第3實施形態 中，係於上部衝壓驅動器5及下部衝壓驅動器13之上下兩 ，側为別具備有密接嵌合部23之構成，且將上部側之密接 瓜σ °卩23之直徑構成為較下部側之密接嵌合部23之直徑 為小。依據此構成，由於在上下兩端側具備密接嵌合部23, 因此上部衝壓驅動器5之軸心與下部衝壓驅動器 13之轴心 更為正確致’可獲得與前述之實施形態相同之功效。 第4圖係為顯示第4實施形態者。在此實施形態中， 321831 12 1378834 係為具備有以可滑動方式密接嵌合上部衝壓驅動器5之凸 緣部5F與衝壓導件3之密^£_合1〇_51_第/1密接嵌合部）， 並且具備有以可滑動方式密接嵌合下部衝壓驅動器13之 凸緣部13F與衝壓導件3之密接嵌合部27(第2密接嵌合 部）之構成。在此構成中，衝壓導件3之ϋ心、上部衝塵驅 動器5之軸心及下部衝壓驅動器13之軸心將分別一致，而 可發揮與前述實施形態相同之功效。 第5圖係為顯示第5實施形態者，且為將前述之第3 實施形態之構成與第4實施形態之構成加以組合之構成。 在此第5實施形態中，係與第3實施形態之構成相同，其 為在上部衝壓驅動器5與下部衝壓驅動器13之上下兩端側 分別具備有密接嵌合部23之構成，且將上部側之密接嵌合 部.23之直徑構成為較下部側之密接嵌合部23之直徑為 小。再者，在此第5實施形態中，係與第4實施形態之構 成相同，其為具備有以可滑動方式密接嵌合上部衝壓驅動 φ 器5之凸緣部5F與衝壓導件3之密接嵌合部25，並且具 備有以可滑動方式密接嵌合下部衝壓驅動器13之凸緣部 13F與衝壓導件3之密接嵌合部27之構成。在此第5實施 形態之構成中，亦可發揮與前述實施形態相同之功效。 從以上說明可明瞭，將衝壓模具1之上部衝壓驅動器 5之母螺絲部5S與下部衝壓驅動器13之公螺絲部13S螺 合時，由於密接嵌合部之作用而使上部衝壓驅動器5之軸 心與下部衝壓驅動器13之軸心一致，因此可解除因為上部 衝壓驅動器5之軸心與下部衝壓驅動器13之軸心微量偏移 13 321831 1378834 所引起的問題’而可解除如前所述之f知問題。 另外日本第2GG9-G52622號專利中請案（2GG9年3 月5日申請)之全部内容均已比照編入本案說明書中。 本發明並不限於前述發明實施形態之說明，亦可 適當變更，以其他各種態樣來實施。 θ 【圖式簡單說明】 第1圖係為顯示本發明第丨實施形態之衝壓模具之構 成之剖面說明圖。 第2圖係為顯示本發明第2實施形態之衝壓模具之構 成之剖面說明圖。 第3圖係為顯示本發明第3實施形態之衝壓模具之構 成之剖面說明圖。 第4圖係為顯示本發明第4實施形態之衝壓模具之構 成之剖面說明圖。 第5圖係為顯示本發明第5實施形態之衝壓模具之構 成之剖面說明圖。 【主要元件符號說明】 3 3G 5 5F、13F 5S 7 衝壓模具 衝壓導件 鍵溝 ΌΌ 上部衝壓驅動 凸緣部 母螺絲部 保持環 3218311378834 VI. Description of the Invention: [Technical Field] The present invention relates to a stamping die for use in a punch press such as a Turret Punch Press, and more particularly, to a stamping blade A height-adjustable stamping die can be used after grinding. [Prior Art] A press die for a punch press such as a turret punch press is provided with a cylindrical dust guide which is supported by a punch holder such as an upper turret so as to be movable up and down. In this press guide, an upper punch driver is mounted in a freely movable manner. Further, in the upper press driver, the upper body is movably mounted to have a press body in which the punching blade portion is formed at the lower end (b_the lower punching device or the body has a lot of money) The lower punching actuator is screwed to the upper punching drive in the manner of: the lower pressure actuator is integrally provided with a freely slidable card 832: part Press the key of the stamping guide such as SlQt). The above-mentioned technique "two in the aforementioned Patent Document 1 and the patent read 2.", for example, in the conventional smashing mold, the upper smashing dust drive driver is screwed in such a manner that it can be relatively adjusted up and down, and the lower punch (four) knife When the part is worn and regrind, it is preferable to be able to easily correct the above-mentioned part. "In the case of the conventional structure, there is occasional breakage of the key due to the breakage of the key. The stamping guide and the lower punch drive the moon shape. The existence of a small gap between the upper and the balance body 1378834 causes the lower punch driver to relatively finely move and finely rotate the stamping guide. However, after various experiments, it was found that when the upper punch driver and the lower punch driver were screwed together, if the axis of the upper punch driver and the axis of the lower punch driver were slightly offset, the stamping process was performed by punching. During the cutting process, due to the component force caused by the engagement of the threads of the screw portion of the upper punch driver and the lower punch driver, and the presence of a backlash in the screw portion, the lower punch driver is upper The punching drive moves relatively finely in the radial direction. (Prior Art Document) (Patent Document 1) JP-A-2005-246393 (Patent Document 2) Japanese Laid-Open Patent Publication No. JP-A No. 2006-142372A SUMMARY OF INVENTION [Technical Problem to be Solved by the Invention] The present invention is In order to solve the above problems, the inventors of the present invention have an object of providing a stamping die capable of preventing the breakage of a key or the like by restricting the fine movement of the upper press guide in the radial direction by the lower press guide. [Means for Solving the Problems] In order to achieve the above object, a first aspect of the present invention provides a press die comprising: a cylindrical press guide; and an upper press driver mounted on the press guide in a vertically movable manner; The punching driver is screwed to the upper punching driver in a vertically adjustable manner; the punching blade portion is integrally or integrally formed with the lower punching driver in the lower 5321831 1378834 stamping driver; the key groove is disposed on the stamping guide </ RTI> limiting the relative rotation of the lower punch driver to the press guide; the key is engaged with the key groove, and is disposed on the lower punch driver; and the close fitting portion slidably fits the upper punch The driver and the lower punch driver limit the slight movement of the upper punch driver and the lower punch driver in the radial direction due to the small gap of the screw portion. According to a second aspect of the present invention, in the press die, the close fitting portion is attached to the lower end sides of the upper press driver and the lower press driver; and the lower close fitting portion is attached The diameter is set to be larger than the diameter of the upper close fitting portion. Furthermore, in order to achieve the above object, a third aspect of the present invention provides a press die comprising: a cylindrical press guide; an upper dust drive driver mounted on the press guide in a freely movable manner; and a lower press driver And the upper punching driver is relatively screwed with respect to the upper and lower pressing actuators; the punching blade portion is integrally or integrally formed with the lower punching driver in the lower punching driver; and the key groove is disposed on the punching guide to limit the foregoing a lower punch drive/device for relative rotation of the stamping guide; a key engaged with the key groove and disposed on the lower punch driver; and a first close fitting portion slidably fitting the upper punch The driver and the stamping guide are configured to restrict the vertical movement of the upper punch driver and the lower punch driver in a radial direction due to a slight gap of the screw portion. The press die according to the fourth aspect of the present invention according to the third aspect of the present invention includes a second close fitting portion that slidably fits the 6321831 1378834 lower press driver and the press guide to limit The upper punch driver and the lower punch driver are slightly moved in the radial direction due to the minute gap of the screw portion. Further, in order to achieve the above object, a fifth aspect of the present invention provides a press die comprising: a cylindrical press guide; an upper press driver mounted on the press guide in a freely movable manner; and a lower press driver The upper punching drive is screwed in a manner that can be adjusted relative to the upper and lower sides; the punching blade portion is integrally or integrally formed with the lower punching driver in the lower punching driver; and the key groove is disposed on the punching guide to limit the foregoing The lower punching drive rotates relative to the stamping guide; the key engages with the key groove, and is disposed on the lower punch driver; and the close fitting portion slidably fits the upper punch driver and the punching guide And limiting the slight movement of the upper punch driver and the lower punch driver in the radial direction due to the small gap of the screw portion. [Effects of the Invention] The press die of the present invention according to the first aspect and the second aspect described above includes a close fitting portion in which the upper punch driver and the lower punch driver are slidably fitted. Further, according to the third aspect to the fifth aspect, the press die of the present invention includes a close fitting portion for slidably fitting the upper press driver and the press guide, or slidably fitted One of the other close fitting portions of the lower press driver and the press guide or the close fitting portion of the two. Therefore, according to the present invention described in the first to fifth aspects, even if there is a tooth gap between the screw portion of the upper press driver and the lower press driver, the force component of the radial direction of the 7321831 1378834 is formed during the press working. In the case of the action, the lower punching driver can also restrict the fine movement of the upper punch driver in the radial direction, thereby preventing damage of the key or the like. [Embodiment] Hereinafter, embodiments of the present invention will be described using the drawings. Further, the overall configuration of the press mold will be briefly described below. Referring to Fig. 1, a press die 1 according to an embodiment of the present invention is, for example, a turret (not shown) such as a turret punch press, and the like, and has a cylindrical shape supported by a punch holder in a vertically movable manner. The guide member 3 is punched, and the press guide 3 is provided with a cylindrical upper punch driver 5 so as to be freely movable up and down. More specifically, an annular retainer 7 is attached to the upper portion of the press guide 3, and is integrally attached to the retaining ring 7 so as to be freely movable up and down via a mounting screw or the like. Between the head 9 of the upper end portion of the upper punch driver 5 and the retaining ring 7, a coil spring 11 as a stopper spring is elastically fitted. Further, in the sealed space formed by overlapping the coil springs 11, a lubricant such as grease is stored. A flange portion 5F having a large diameter is attached to a lower end portion of the upper press driver 5 located in the press guide 3. Further, in the upper punch driver 5, a female screw portion 5S is attached in the same manner as a conventional press die. In the female screw portion 5S of the upper press driver 5, the male screw portion 13S of the lower press driver 13 is screwed up and down. The height of the press die 1 is adjusted by adjusting the screwing of the female screw portion 5S and the male screw portion 13S and adjusting the vertical positional relationship between the upper punch driver 5 and the lower punch driver 13 8321831 1378834. Further, the lower press driver 13 is provided with a large-diameter flange portion 13F on the lower side of the flange portion 5F of the upper press driver 5, and the flange portion 13F is integrally attached with a mounting screw or the like. The key 15 that is engaged with the key groove 3G formed in the upper and lower directions of the above-described press guide 3 is slidably attached in a freely slidable manner. Further, in the lower portion of the lower press driver 13, a press body 17 having a press blade portion at the lower end portion is integrally attached by a mounting screw or the like. The key 15 is long in the radial direction of the flange portion 13F, and is fixed to the flange portion 13F in a stationary state. Further, the key 15 is in close contact with the key groove 3G, and the gap between the card synthesizing key 15 and the key groove 3G is kept at a minute gap of a micron unit. Further, in the above description, the lower press driver 13 and the press body 17 are separately provided. However, the lower press driver 13 and the press body 17 may be designed to be integrally provided in advance. In the above configuration, after the processing position of the plate-like workpiece is set to φ on a die (not shown) that is paired with the dusting die 1, the punch is punched by the punch (also It is the striker) to press the punch 9 to perform the punching process on the above workpiece. When the punching process is performed as described above, the striking force of the hammer is transmitted from the punch 9 to the lower punch driver 13 via the female screw portion 5S of the upper press driver 5 and the male screw portion 13S of the lower press driver 13. At this time, in the case where the axial center of the upper press driver 5 and the axial center of the lower press driver 13 are identical, the relationship between the valley portion of the female screw portion 5S, the mountain portion, and the mountain portion and the valley portion of the male screw portion 13S is obtained. The component forces acting in the radial direction of 9 321 831 1378834 cancel each other out, so that the lower punch driver 13 does not move relatively finely with respect to the upper punch driver 5 in the radial direction. However, if the axial center of the upper punch driver 5 and the axis of the lower punch driver 13 are slightly offset due to the presence of a tooth gap in the screw portion, the punch 9 is punched (punched) by the aforementioned punch. At the time of processing, the lower punch driver 13 slightly moves in the radial direction with respect to the upper punch driver 5 to correct the aforementioned slight misalignment. The moving direction of the lower punch driver 13 to the radial direction of the upper punch driver 5 is the longitudinal direction of the key 15, that is, the direction of the key groove 3G with respect to the press guide 3 (in FIG. 1) In the case of the left-right direction, only the engagement relationship between the key groove 3G and the key 15 is slightly changed, and the key 15 is not damaged. However, the lower punch driver 13 has a direction in which the upper direction of the key 15 is orthogonal to the direction in which the upper punch drive II 5 is moved in the radial direction, and in other words, a key orthogonal to the longitudinal direction of the key groove 3G. When the width direction of the groove 3G (in the first direction in FIG. 1 is perpendicular to the paper surface), the movement is not larger than the extremely fine gap between the key groove 3G and the key 15, so that a large load acts on the key 15, and There will be a broken condition of the key 15. Therefore, in the configuration of the press die 1 of the present embodiment, even when there is a tooth gap between the screw portions of the upper press driver 5 and the lower press driver 13, the upper punch driver 5 and the lower punch driver 13 can be used. When screwing, make the axes of the two sides consistent. More specifically, in the lower portion of the upper punch driver 5, the system 10 321831 1378834 has a close fitting punch hole 19 which is larger in diameter than the aforementioned female screw portion 5S and is processed with high precision, and the lower punch driver is formed in the foregoing. A lower portion of the lower portion of the flange portion 13F is provided with a high-precision fitting portion 21 that is processed with high precision in accordance with the close fitting hole 19. Further, the close fitting hole 19 and the high-precision fitting portion 21 are slidably fitted to form the close fitting portion 23. The adhesion fitting portion 23 of the close fitting hole 19 and the high-precision fitting portion 21 is slidably fitted to maintain the micro unit unit between the close fitting hole 19 and the high-precision fitting portion 21. The fine gap is slidably adhered to the fitter, and because of the minute tooth gap existing in the screw portion of the upper punch driver 5 and the lower punch driver 13, the lower punch driver 13 is restricted to the upper punch driver 5 toward The role of the micro-motion relative to the radial direction. In other words, the minute gap of the close fitting portion 23 is set to be smaller than the gap between the screw portions (the gap of the micron unit). According to the above configuration, when the male screw portion 13S of the lower press driver 13 is screwed to the female screw portion 5S of the upper press driver 5, even if the axial center of the lower punch driver 13 is opposite to the axial center of the upper punch driver 5, the tooth gap is used. When there is a slight offset, the female screw portion 5S and the male screw portion 13S are screwed together, and the high-precision fitting portion 21 of the upper punching driver 5 and the lower punch driver 13 are fitted. When the fitting is slidably engaged, the axis of the upper punch driver 5 and the axis of the lower punch driver 13 will coincide. Therefore, by punching the punch 9 by the ram, the punching and η 321831 ^ 78834 man-hours are performed as described above, because the mountain portion, the valley portion and the lower punch driver 13 of the female screw portion 55 in the upper punch driver 5 are The snap relationship of the valley portion of the valley portion of the male screw portion 13S causes the component of the radial direction to function. However, since the axial center of the upper press driver 5 and the axial center of the lower press driver 13 are aligned by the close fitting of the close fitting portion 23, the forces in the radial direction cancel each other without the key. 15 caused damage and so on. Further, even if the lower punch driver 13 is in the upper direction due to the component force in the diameter direction. The P press driver 5 has a tendency to move finely in the radial direction. The fine movement of the P press driver 5 and the close fitting portion 23 of the lower press driver 13 is also restricted, and relative fine movement can be prevented. In the second drawing, the diameter of the close fitting hole 19 shown in Fig. 1 is set to be equal to the valley diameter (thread bottom diameter) of the female screw portion 5S, and the high precision is embedded. The straight line of the 卩21 is the same as the outer diameter of the male screw portion 3s, and the configuration of the 卩21 is the same as that of the above-described third embodiment, and therefore detailed description thereof will be omitted. In this configuration, / can also exert the effects of (5) in the above embodiment. Fig. 3 is a view showing the third embodiment. In the third embodiment, the upper and lower press actuators 5 and the lower press driver 13 are provided on the upper and lower sides, and the side is provided with a structure in which the close fitting portion 23 is provided, and the diameter of the upper side of the close contact portion is formed. The diameter of the close fitting portion 23 on the lower side is small. According to this configuration, since the close fitting end portions 23 are provided on the upper and lower end sides, the axial center of the upper press driver 5 and the axial center of the lower press driver 13 are more accurate, and the same effects as those of the above-described embodiment can be obtained. Fig. 4 is a view showing the fourth embodiment. In this embodiment, the 321831 12 1378834 is provided with a flange portion 5F that slidably fits and fits the upper punch driver 5 and the stamping guide 3 is tightly combined with the stamping guide 3 The joint portion is provided with a structure in which the flange portion 13F of the lower press driver 13 and the press fitting portion 27 (the second close fitting portion) of the press guide 3 are slidably fitted. In this configuration, the center of the press guide 3, the axis of the upper dust drive 5, and the axis of the lower press driver 13 are respectively aligned, and the same effects as those of the above embodiment can be obtained. Fig. 5 is a view showing a configuration in which the fifth embodiment is combined with the configuration of the third embodiment and the configuration of the fourth embodiment. In the fifth embodiment, the configuration of the third embodiment is the same as that of the lower press driver 5 and the lower press driver 13, and the upper end side is provided with the close fitting portion 23, and the upper side is provided. The diameter of the close fitting portion 23 is such that the diameter of the close fitting portion 23 on the lower side is small. In the fifth embodiment, the configuration of the fourth embodiment is the same as that of the fourth embodiment, and the flange portion 5F that slidably fits the upper punch driving φ device 5 and the press guide 3 are closely attached. The fitting portion 25 is provided with a configuration in which the flange portion 13F of the lower press driver 13 and the close fitting portion 27 of the press guide 3 are slidably fitted. In the configuration of the fifth embodiment, the same effects as those of the above embodiment can be exerted. As is apparent from the above description, when the female screw portion 5S of the upper press driver 5 of the press die 1 is screwed to the male screw portion 13S of the lower press driver 13, the axial center of the upper punch driver 5 is made by the action of the close fitting portion. The same as the axis of the lower punch driver 13, so that the problem caused by the slight offset of the axis of the upper punch driver 5 and the lower punch driver 13 13 321831 1378834 can be removed. problem. In addition, the contents of the Japanese Patent No. 2 GG9-G52622 (the application filed on March 5, 2G9) have been incorporated into the present specification. The present invention is not limited to the description of the above-described embodiments of the invention, and may be modified as appropriate and implemented in other various aspects. θ [Brief Description of the Drawings] Fig. 1 is a cross-sectional explanatory view showing the configuration of a press die according to the embodiment of the present invention. Fig. 2 is a cross-sectional explanatory view showing the configuration of a press die according to a second embodiment of the present invention. Fig. 3 is a cross-sectional explanatory view showing the structure of a press die according to a third embodiment of the present invention. Fig. 4 is a cross-sectional explanatory view showing the structure of a press die according to a fourth embodiment of the present invention. Fig. 5 is a cross-sectional explanatory view showing the structure of a press die according to a fifth embodiment of the present invention. [Main component symbol description] 3 3G 5 5F, 13F 5S 7 Stamping die Stamping guide Key groove ΌΌ Upper punch drive Flange part Female screw part Retaining ring 321831