200920513 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種螺帽的製造方法，尤指一種藉由將 金屬板材進行引伸加工所製造之連接型螺帽的製造方法。 【先前技術】 / 迄今，用於組合PDP ( Plasma Display Panei之簡稱， 電漿顯不器），或LCD ( Liquid Crystal心加驭之簡稱， 液晶顯示器）等電器產品之連接型螺帽5〇具有如第十一圖 所示之剖面形狀。該連接型螺帽5〇係於金屬製之基板或底 架（chassis)上安裝電子零件或電子基板時所使用者。一 該連接型螺帽50係包含近圓柱形狀之螺帽本體51及於 該螺帽本體51之基部上所形成之凸緣㈣，形成有連通連 接型螺帽50之螺紋53。於螺帽本體51與凸緣部52之間形成 有溝部54。於金屬製之基板或底架上所形成之安裝孔中插 入連接型螺帽50，將安裝孔之外緣與溝㈣嵌合，從而可 使連接型螺帽安裝於上述基板或底架上。上述連接型螺帽 5〇，如專利文獻丨或專利文獻2所示，係利用㈣加工或 熱間鍛造而製造。 於以切削加工製作該連接型螺帽5〇之情形時，會有因 用費致成本高之問題。又，為了切削，先前使 則Η憂良之磷青銅（細細br〇聰）等，但該罐青 價格高：且係利用切削加工而形成溝部54，故 二螺::二失之問題。另一方面，若利用熱間鍛造製作連 接型螺㈣，則連接型螺㈣之表面性狀會變得不良。 200920513 又，由於在高溫下操作，故存在操作環境惡劣之問題。 因此’存在有如專利文獻3所示之壓入螺帽及其造 方法。該壓入螺帽係於金屬板上進行引伸加工，形成 部與自該凸緣部豎起之筒狀部，將該筒狀部之底部、 孔，於筒狀部之内面形成螺紋者。 仃 但疋，於將該壓入螺帽於金屬製之基板或底架上用 女裝電子零件或電子基板時，會有以下問題。 ； (1 )因形成螺紋的部分之板厚不足，故實際上 形成螺紋。X’因該部分之強度不充分，於安裝電子_ 或電子基盤時，有變形之虞。 (2 )因安裝電子零件或電子基盤之抵接部分（ =獻3之第二圖之4 )之面積不足，故安裝後變得不穩 定，且因面魔變高，故存在集中應力會導致電子零件 子基盤破損之虞。 因此，業者希望能夠有不會產生材料之損失，且成本 不會變高之情況下，可敎安裝電子零件或電子基盤 接型螺帽的製造方法。 ％ 專利文獻1 4日本專利特開2GQ2_227817號公報。 專利文獻2為日本專利特開2〇⑼_326〇47號公報。 專利文獻3為日本專利特開2瞄_297455號公報。 【發明内容】 本發明係提供-種連接型螺帽的製造方法，其不 生材料之損失’且成本不會變高。 為解決上述課題而形成之本發明，其特徵在於，藉由 200920513 將金屬板材進行引伸加卫（drawing)， (flange )、外側筒部、及底 ^已3凸緣部 由將該有底筒狀之半成口進Γ &同狀之半成品’藉 .、 千戚〇口進仃逆向引伸（reverse 「简），形成自底部向内侧突出之内侧圓筒部 孔（piercing )將上诚主士、σ —〜 稽田斤 名y聆上边丰成品之内側 孔，並且藉由板厚增加加工使上述丰二2 '進仃牙 板厚增加而形成連接部。 文.成-之内側圓筒部之 再者，進一步，利用割縫（sm 之基端部分形成自外側筒邱之外g ;於外側相 則之外周面向外側突出之突起 :側=::部與凸緣部之間形成外側筒部之丄 紋。又’進一步’利用攻螺絲（__)於連接部螺刻螺 之壯^進一步’逆向引伸係於對外側筒部之内側無拘束 之狀態下、，以形成内側圓筒部之自由引伸方式而進行。 又’進-步’板厚増加加工係利用多級壓縮引伸 (multistage impression drawing )而進行，㉛：於包 納外側筒部之設置孔（seth〇le )及自該設置孔之底部= 出之小於内側圓筒部之内徑之外徑之引導突起（guide 旭）之模頭’使凸緣部為位於上方之狀態設置半成品， 使具有小於内側圓筒部外徑之内徑之引伸凹部之壓縮引伸 打孔機下降，將該壓縮引伸打孔機之前端進入外側筒部盘 内側圓筒部之間，使内側圓筒部之外表面之表面積減小，、 利用塑性流動使與該表面積之減小相應之體積轉變成内側 200920513 圓筒部之厚度，從而使内側圓筒部之板厚增加。 又，進一步’板厚增加加工係利用型鍛（swaging)而 進行，即：於包含容納外側筒部之設置孔及自該設置孔之 底部突出之略小於内侧圓筒部之内徑之外徑之引導突起之 模頭’使凸緣部為位於上方之狀態設置半成品，使包含内 徑大於内側圓筒部之外徑之圓筒形狀之套筒（si賺）與 收容於該套筒内部之圓柱形狀之型锻打孔機、以上述套筒 相對於型鍛打孔機自由滑動之方式所構成之打孔機下降， 以進入上述套筒外側筒部與内侧圓筒部之間之狀離，使上 述型鍛打孔機之前端抵接於内侧圓筒部之前端，進而使上 述型鍛打孔機下降，壓縮内側圓筒部，於由上^ 側與型鍛打孔機外側所構成之空間中，利 内侧圓筒部進行填充，從而使内側圓筒部之板厚增加動對 又，進一步，割縫加工係形成有容納外 孔，於該設置孔之入口部分，於形叹置 r射狀之割縫刀之割縫模頭，使二 成品’使與上述割縫模頭對應之形狀之割縫打： 藉由將金屬板材進行引伸加工， 外側筒部、及底部之有底筒狀之半成品、 狀=半成品進行逆向引伸，形成自底部向内側突筒 圓同部，利用沖孔對上述半成品之内側 側 穿孔，並且利用板厚增加加工使上述半成:：=亍 之板厚增加形成連接部而製造連接型螺帽，故可：:： 200920513 損失，或不會由於切削加工 幅削減製造成本。又，根據本= = 況下，大 之壓延鋼板進行製造，可削減材料費。如此材::::宜 1 目比，可使製造原價削侧〜㈣。又，根據 了=轉=~(transferpress)等進行自動連續形 成’故可西效地進行大量生產。又，與先前 形相比，表面性妝_拉4 π ^ ^ ^ ft 良好，故不必於惡劣操作環境下進行製 、I明中’因藉由對金屬板材進行引伸加卫，而製 連=型螺帽’故與如先前技術之以切削加工等製作連接型 螺帽之情形相比’可減小不必要部分之體積，從而可使重 量降低60%〜80%左右。又’因利用板厚增加加工使内側 圓筒部之板厚增加，故可形成螺紋，又，可提高連接部之 強度。又’於安裝電子零件或電子基盤時，該些電子部或 電子基盤與外侧圓筒部之底部抵接，故可確保充分之抵接 面積’從而可穩定進行安裝，進而，#由使面a變高，而 可防止電子零件或電子基盤破損。 再者，若藉由割縫，於外側筒部之基端部分形成自外 側筒部之外周面向外侧突出之突起部，以及於該突起部與 凸緣部之間形成外侧筒部之外側與内側連通之固定孔，以 及使連接型螺帽與被連接材之安裝孔結合，則可藉由將突 起部進入安裝孔而於安裝孔之側面產生較強之加壓力，使 被結合部材填充於固定孔，藉此而可牢固地使被結合部材 與連接型螺帽固定結合。 200920513 再者’於内侧圓筒部，利用攻螺絲 不是自攻螺釘，而是通當 累、、文時，即使 連接。 通吊之螺釘，亦可與連接型螺帽進行 又’逆向引伸於對外側筒 以形成内側圓筒部之自由 束之狀態下， 薄，亦可形成内側圓筒Γ式而進订時’儘管板厚較 =，板厚增加加工係彻多㈣則伸而進行 純各谷納相筒部之設置孔及自該設置孔之底部突出之 緣同部之内徑之外徑之引導突起之模頭上，使凸 緣'為位於上方之狀態設置半成品，使具有小於内側圓筒 部外徑之内徑引伸凹部壓/ 甲打孔機下降，將該壓縮 中打孔機之别端進人外側筒部與_圓筒部 側圓筒部之外矣面夕主工& ^ 纟表面積減小’洲塑性流動使與該表 之減小相應之體積轉變成内側圓筒部之厚度，而使内 側圓筒部之板厚增加，則連接部之板厚變厚，以自攻螺釘 可進打連接，或可形成螺紋，X，連接部之強度增強。 又，板厚增加加工係利用型鍛法而進行，即··於包含 容納外側筒部之設置孔及自該設置孔之底部突出之略小於 内側圓筒部之内徑之外徑之引導突起之模頭，使凸緣部為 4於上方之狀態設置半成品，使包含内徑大於内側圓筒部 之外徑之圓筒形狀之套筒與收容於該套筒内部之圓柱形狀 之型鍛打孔機、以上述套筒相對於型鍛打孔機自由滑動之 方式^構成之打孔機下降，以進入上述套筒外側筒部舆内 側圓筒部之間之狀態，使上述型鍛打孔機之前端抵接於内 200920513 側圓筒部之前端，進而借卜 圓筒部，於由上述套筒之 丁孔機下降，塵縮内側 空間中，利用可塑性锻打孔機外側所構成之 圓筒部之板厚增力" 接。卩之板厚變厚，以自攻螺釘可 進订連接，或可形成螺紋，又，連接部之強度增強。 又’割縫加工係形成有容納外側筒部之設置孔，於該 部分’於形成有以一定角度凹陷形成為放射 狀之割縫刀之割縫禮§百μ ¥ ^ σ 、 ，使凸緣部為位於上方之狀態設 上述割縫模頭對應之形狀之割縫打孔機下 冰_ 4/11部之基端部分，形成自外側筒部之外周面向 、雨夕貝 犬起部’以及於該突起部凸緣部之間，形成連 =之外側與内侧之固定孔，則僅使割縫打孔機下 ^即可同時形成突起部與較孔之兩者，故製作效率優 【實施方式】 以下請參照圖式及較佳實施形態。 1之立俨=係：據本發明之製造方法所製造的連接型螺帽 、。第二圖係第一圖之縱剖面圖，第三圖係第一 2之俯視圖，第四圖係第—圖之仰視圖。連接型螺帽 3 一外側筒部2、-凸緣部3、-内側圓筒部4 (連接 邛）複數固定孔5及複數突起部6。 —外側筒部2為有底筒狀。外側筒部2之剖面形狀於太 實知形態中為圓形狀。凸緣部3係於外側筒部2之基端以 向與外侧筒部2之軸線方向成正交之方法擴大之方式而形 200920513 成，於本實施形態中，為如第三圖或第四圖所示之丄 形狀。 /、冉形 内側圓筒部4為圓筒形狀，自外側筒部2之底部％ 外側筒部2之内部方向與外側_部2形成同軸。^ a ° 圓同部4作為連接部。該連接部之内側圓筒部 置 刻有螺紋7。 曲螺 突起部6係於外側筒部2之基部以一定角度自 之外周面向外側突出之方式而形成。又，該突起部： Ϊ向外側筒部2之内側突出。固定孔5㈣外側筒部2之 犬起部6與凸緣部3之間以外側筒部2之外側與内側連通 之方式而形成。 (本發明之連接型螺帽的製造方法） 以下說明該連接型螺tfl之製造方法。第五圖表示本 發明之連接型螺帽的製造方法之製造製程圖。 於 r κ 刀坯」（blanki呢）製程中，藉由坯切邊模且 ^ f廿删加他）將麼延鋼板打成圓形狀，形成圓形 趣。將該_移送至「一次引伸」製程。於「一次引 =製程中’將圓㈣設置於具有凹陷形成為圓形狀之弓I 之引伸模頭’自上方使近圓柱形狀之打孔機下降，藉 此使上述圓形赵進行塑性變形，而形成有底筒狀。 於「「=次引伸」製程結束時，進而移送至「二次引 「三次㈣」製程，慢慢地向深度引伸有底筒狀之 + “，形成包含凸緣部3、外側筒部2、及底部加之有 12 200920513 底筒狀之半成品。「―次弓丨伸」〜，4 之主要製程變數為打孔機及引伸孔广引伸」之各製程 孔之間隔、引伸率、打孔機力、 徑、與打孔機引伸 力、潤滑等。於「三次引伸程_lon)壓 狀之半成品移送至「逆向引伸“製:束時’將上述有底筒 第六圖表示逆向引伸製程之說明圖。「 程包含「自由引伸」製程（如第六 =伸」製 型」製程（如第六圖（β))。於 （A))及定 使用之模頭19，如第六圖之 ％伸」製程t所 柱形狀之設置凸部19a。= ’突出設置有近圓 側筒部2之内徑。又，「二”如之外徑稍小於外 如第六圖之（A)所-自Γ伸」製程所使用之打孔機 圃A )所不，為圓柱形狀。 將有底筒狀之半成品置於凸緣部3之下方， 頭19 ’使打孔機20下降，利用塑性 ς抵接 f、U粗形成内側圓筒部4。如此「自由引 卜側筒部2之内側及外側不受拘束之狀態進 .自由引伸」製程之主要製程變數（隊咖 :敝）為打孔機2Q之形狀、形成内側圓筒部4時之引 伸率、打孔機力等。 於「自由引伸」製程結束時，半成品經「定型」製程 形成内側圓筒部4 $ # # & r + μ 因门Η 4之形狀。於「定型」製程所使用之定型 模頭2卜如第六圖之（Β )所示，&圓柱形狀，其上部定 型凹部❿凹陷形成為同^圓狀。定形模頭21之外徑猶小 13 200920513 於外側筒部2之内徑。於「 機22，如第六圖之（β 所使用之定型打孔 22a。 目之⑴所-，具有圓柱形狀之定型凸部 古；；形成有内側圓筒部4之半成品至於凸緣部3之下 =’权置於定型模頭21上，使定型打孔機U 下 ;之内側圓筒部4進行塑性變形，填充於定型凹部 疋型凸部既之間之空間，藉此形成内側圓筒部4之形’、200920513 IX. Description of the Invention: [Technical Field] The present invention relates to a method of manufacturing a nut, and more particularly to a method of manufacturing a connecting nut manufactured by subjecting a metal sheet to an extension process. [Prior Art] / So far, the connection nut for the combination of PDP (abbreviation of Plasma Display Panei, plasma display), or LCD (abbreviation of Liquid Crystal), etc. The cross-sectional shape as shown in Figure 11. The connecting nut 5 is attached to a metal substrate or a user who mounts an electronic component or an electronic substrate on a chassis. A connecting nut 50 includes a nut body 51 having a nearly cylindrical shape and a flange (4) formed on a base portion of the nut body 51, and a thread 53 that communicates with the coupling nut 50 is formed. A groove portion 54 is formed between the nut body 51 and the flange portion 52. The connecting nut 50 is inserted into the mounting hole formed in the metal substrate or the chassis, and the outer edge of the mounting hole is fitted into the groove (4) so that the connecting nut can be attached to the substrate or the chassis. The above-described connecting nut 5, as shown in the patent document or the patent document 2, is manufactured by (iv) machining or hot forging. When the connecting nut 5 is manufactured by cutting, there is a problem that the cost is high due to the use. Further, in order to cut, the phosphor bronze (fine bristles) which has been used for the sake of the past has been used, but the price of the can is high: and the groove portion 54 is formed by cutting, so the problem of the two snails is two. On the other hand, when the joint type screw (4) is produced by hot forging, the surface properties of the joint type screw (4) are deteriorated. 200920513 Also, due to the operation at high temperatures, there is a problem that the operating environment is bad. Therefore, there is a press-in nut as shown in Patent Document 3 and a method of manufacturing the same. The press-fit nut is stretched on a metal plate, and the formed portion and the tubular portion erected from the flange portion are formed. The bottom portion of the tubular portion and the hole are formed on the inner surface of the tubular portion.仃 However, when the press-in nut is used on a metal substrate or chassis for women's electronic parts or electronic substrates, the following problems may occur. (1) Since the thickness of the portion where the thread is formed is insufficient, the thread is actually formed. X' is insufficient in strength due to the strength of the portion, and there is a deformation when the electronic _ or the electronic base plate is mounted. (2) Due to the insufficient area of the abutting part of the electronic component or the electronic base plate (= 4 of the second figure of the 3), it becomes unstable after installation, and the surface magic becomes high, so there is concentrated stress. The electronic component sub-base is damaged. Therefore, the manufacturer hopes that the manufacturing method of the electronic component or the electronic base-type nut can be installed without the loss of the material and the cost is not high. % Patent Document 1 Japanese Patent Laid-Open Publication No. 2GQ2_227817. Patent Document 2 is a Japanese Patent Laid-Open Publication No. Hei 2 (9)-326-47. Patent Document 3 is Japanese Laid-Open Patent Publication No. Hei No. 297455. SUMMARY OF THE INVENTION The present invention provides a method of manufacturing a connecting nut which does not cause a loss of material and does not become costly. The present invention, which is formed to solve the above problems, is characterized in that the metal sheet is stretched and pulled by 200920513, the flange portion, the outer tube portion, and the bottom portion of the flange portion are formed by the bottom tube. Half of the shape of the mouth into the Γ & the same semi-finished product 'borrowing., Millennium 仃 仃 reverse reverse extension (reverse "simple", forming the inner cylindrical hole (piercing) protruding from the bottom to the inside will be the Lord士, σ —~ 纪田斤名 y listen to the inner hole of the edge of the finished product, and by the increase of the thickness of the plate, the above-mentioned Feng 2 2's increase in the thickness of the slab is formed to form the joint. Further, in addition, the slit is used (the base end portion of sm is formed from the outer cylinder and the outer portion is protruded from the outer cylinder; the outer surface is protruded outward from the outer circumferential surface: the side =:: the outer portion and the flange portion form the outer side The crepe of the tube. Further 'use' the tapping screw (__) at the joint portion to sew the snail. Further, the 'reverse extension is tied to the inner side of the outer tube portion to form the inner cylindrical portion. The free extension method is carried out. The system is performed by multistage impression drawing, 31: the set hole (seth〇le) of the outer tube portion and the bottom of the hole are smaller than the inner diameter of the inner cylinder portion. The die of the guide protrusion of the outer diameter (the guide head of the outer diameter) is provided with a semi-finished product in a state in which the flange portion is located above, and the compression-extension punching machine having an extension concave portion having an inner diameter smaller than the outer diameter of the inner cylindrical portion is lowered. The front end of the compression extension puncher enters between the inner cylindrical portions of the outer cylindrical disk, so that the surface area of the outer surface of the inner cylindrical portion is reduced, and the volume corresponding to the decrease of the surface area is converted into the inner side by plastic flow. 200920513 The thickness of the cylindrical portion increases the thickness of the inner cylindrical portion. Further, the 'thickness increase processing system is performed by swaging, that is, the installation hole for accommodating the outer cylindrical portion and the setting a die in which the bottom of the hole protrudes slightly smaller than the outer diameter of the inner diameter of the inner cylindrical portion, and the semi-finished product is provided in a state in which the flange portion is located above, so that the inner diameter is larger than the inner cylinder a cylindrical sleeve of outer diameter (Si earned) and a cylindrical forging puncher housed inside the sleeve, and the sleeve is freely slidable relative to the swaging punch The hole machine is lowered to enter the gap between the outer tube portion of the sleeve and the inner cylindrical portion, so that the front end of the swaging puncher abuts against the front end of the inner cylindrical portion, thereby making the swaging punching machine When the inner cylindrical portion is compressed, the inner cylindrical portion is filled in the space formed by the upper side and the outer side of the swaging punch, so that the thickness of the inner cylindrical portion is increased, and further, The slitting processing system is formed with a receiving hole, and at the entrance portion of the setting hole, the slitting die of the slitting knife of the r-shaped slit is formed so that the second finished product 'shapes corresponding to the slitting die Slotting: By extending the metal sheet, the outer tube portion and the bottomed cylindrical semi-finished product at the bottom and the semi-finished product are reversely extended to form a circular portion from the bottom to the inner protruding tube. The inner side of the semi-finished product is perforated and utilized Increase so that the thickness of the semi-finished processing :: = right foot of the connecting portion is formed to increase the thickness and manufacturing the connector nut type, it can be ::: 200,920,513 loss, because cutting the web or not reduction of manufacturing costs. In addition, according to this ==, the large rolled steel plate is manufactured, and the material cost can be reduced. Such a material:::: 1 mesh ratio, the original price can be cut to the side ~ (four). Further, the automatic continuous formation is carried out according to = transfer = ~ (transferpress), etc., so that mass production can be carried out in a synergistic manner. Moreover, compared with the previous shape, the surface makeup _ 4 π ^ ^ ^ ft is good, so it is not necessary to carry out the system under the harsh operating environment, and it is made by the extension and extension of the metal sheet. The nut 'is reduced in size compared with the case where the connecting nut is made by cutting or the like as in the prior art, so that the weight can be reduced by about 60% to 80%. Further, since the thickness of the inner cylindrical portion is increased by the increase in the thickness of the plate, the thread can be formed and the strength of the joint portion can be increased. Moreover, when the electronic component or the electronic base plate is mounted, the electronic parts or the electronic base plate abuts against the bottom of the outer cylindrical portion, so that a sufficient abutting area can be ensured, so that the mounting can be stably performed, and further, the surface a It becomes high and prevents the electronic parts or electronic base from being damaged. Further, by slitting, a protrusion protruding from the outer circumferential surface of the outer tubular portion is formed at a proximal end portion of the outer tubular portion, and an outer side and an inner side of the outer tubular portion are formed between the protruding portion and the flange portion. The connecting fixing hole and the connecting nut are combined with the mounting hole of the connected material, and the protruding portion can be inserted into the mounting hole to generate a strong pressing force on the side of the mounting hole, so that the bonded member is filled and fixed. The hole can thereby securely bond the bonded member to the connecting nut. 200920513 In addition, in the inner cylindrical part, the tapping screw is not a self-tapping screw, but it is a tired, and even if it is connected. The hanging screw can also be combined with the connecting nut to be 'reversely extended to the outer tube to form a free bundle of the inner cylindrical portion, thin, or can form an inner cylindrical cymbal type when ordering. The thickness of the plate is lower than that of the plate, and the thickness of the plate is increased. (4) The die is formed so that the hole of the pure valley nanophase tube and the outer diameter of the inner diameter of the same portion from the bottom of the hole are guided. On the head, the flange is provided with a semi-finished product in a state of being located above, and the inner diameter extension concave portion/a punching machine having an outer diameter smaller than the inner cylindrical portion is lowered, and the other end of the compression punching machine is inserted into the outer cylinder. The surface of the cylindrical part of the _ cylindrical part is the same as that of the cylindrical part of the cylinder. The surface area is reduced. The plastic flow of the continent changes the volume corresponding to the decrease of the table to the thickness of the inner cylindrical portion. When the thickness of the cylindrical portion is increased, the thickness of the connecting portion is increased, and the tapping screw can be connected, or the thread can be formed, and the strength of the connecting portion is enhanced. Further, the plate thickness increase processing is performed by a swaging method, that is, a guide hole including an installation hole for accommodating the outer cylindrical portion and an outer diameter of the inner diameter of the inner cylindrical portion which protrudes from the bottom of the installation hole. The die is provided with a semi-finished product in a state in which the flange portion 4 is above, and a cylindrical sleeve having an inner diameter larger than the outer diameter of the inner cylindrical portion and a cylindrical shape forging inside the sleeve The hole punching machine is configured to be slidable in a manner that the sleeve is free to slide relative to the swaging punching machine, so as to enter the state between the inner cylindrical portions of the outer sleeve portion of the sleeve, and the forged punching hole is formed. The front end of the machine abuts on the front end of the inner cylindrical portion of 200920513, and then the cylindrical portion is lowered by the small hole machine of the sleeve, and the outer side of the dust-shrinking inner space is formed by the outer side of the plastic forging punching machine. The thickness of the tube is increased by " The thickness of the slab is thickened, and the self-tapping screws can be used for binding, or the threads can be formed, and the strength of the connecting portion is enhanced. Further, the grooving process is formed with a hole for accommodating the outer tubular portion, and the sipe of the sipe which is formed by being formed into a radial shape at a certain angle is stipulated in the stipulation § 100 μ ¥ σ The basal portion of the _ 4/11 portion of the burr punching machine having the shape corresponding to the kerf die in the upper state is formed from the outer circumferential surface of the outer tubular portion, and the rain squirrel dog's Between the flange portions of the protrusions, a fixing hole for the outer side and the inner side is formed, and only the slit punching machine can be formed at the same time to form both the protruding portion and the relatively small hole, so that the manufacturing efficiency is excellent. Modes: Please refer to the drawings and preferred embodiments below. 1 立 俨 = is a connecting nut manufactured by the manufacturing method of the present invention. The second drawing is a longitudinal sectional view of the first drawing, the third drawing is a top view of the first drawing, and the fourth drawing is a bottom view of the first drawing. The connecting nut 3 has an outer cylindrical portion 2, a flange portion 3, an inner cylindrical portion 4 (connecting port), a plurality of fixing holes 5, and a plurality of projections 6. The outer tubular portion 2 has a bottomed cylindrical shape. The cross-sectional shape of the outer tubular portion 2 is a circular shape in a too-so-formed form. The flange portion 3 is formed in the base end of the outer tubular portion 2 so as to be orthogonal to the axial direction of the outer tubular portion 2, and is formed in the form of 200920513. In the present embodiment, it is as shown in the third or fourth embodiment. The shape shown in the figure. /, 冉 Shape The inner cylindrical portion 4 has a cylindrical shape, and is coaxial with the outer portion 2 from the inner portion of the outer tubular portion 2 at the bottom portion of the outer tubular portion 2. ^ a ° Round the same part 4 as the connection. The inner cylindrical portion of the connecting portion is engraved with a thread 7. The curved portion 6 is formed such that the base portion of the outer tubular portion 2 protrudes outward from the outer circumferential surface at a predetermined angle. Further, the protrusion portion protrudes toward the inner side of the outer tube portion 2. The fixing hole 5 (four) between the canine raising portion 6 and the flange portion 3 of the outer tubular portion 2 is formed so that the outer side of the outer tubular portion 2 communicates with the inner side. (Method of Manufacturing the Connecting Nut of the Present Invention) A method of manufacturing the connecting screw tfl will be described below. Fig. 5 is a view showing the manufacturing process of the manufacturing method of the connecting nut of the present invention. In the r κ knife blank process, the slab is rounded by a blank trimming die and ^ f廿 is added to form a round shape. Transfer the _ to the "One Extension" process. In the "one lead = process", the circle (four) is placed on the extension die having the bow formed into a circular shape, and the punch of the near-cylindrical shape is lowered from above, thereby plastically deforming the circular shape. Formed with a bottomed cylinder. At the end of the "==Extension" process, it is transferred to the "Secondary" (three times) process, and slowly extends to the depth of the bottomed cylinder +" to form a flange. 3, the outer tube portion 2, and the bottom with 12 200920513 bottom cylinder-shaped semi-finished product. "----------------------------------------------------------------------------------------------------------------------------------------------------------- Extensibility, punching force, diameter, and drawing machine extension, lubrication, etc. The semi-finished product in the "three-extension process _lon" is transferred to the "reverse-extension" system: when the beam is used, the above-mentioned bottomed cylinder is shown in the sixth figure, and the explanatory diagram of the reverse-extension process is shown. "The process includes the "free extension" process (such as the sixth = extension) process (such as the sixth figure (β)). In (A)) and the used die 19, as shown in the sixth figure. The convex portion 19a is provided in the column shape of the process t. = 'The inner diameter of the proximal cylindrical portion 2 is protruded. Further, if the outer diameter of "2" is slightly smaller than that of the puncher used in the process of (A) - self-extension, the cylindrical shape is used. The semi-finished product having a bottomed cylindrical shape is placed below the flange portion 3, and the head 19' lowers the punching machine 20, and the inner cylindrical portion 4 is formed by the plastic ς abutting f and U. In this way, the main process variable (team coffee: 敝) of the process of "freezing the inner side and the outer side of the side tube portion 2 freely restrained" is the shape of the punching machine 2Q, and the inner cylindrical portion 4 is formed. Extensibility, punching force, etc. At the end of the "free extension" process, the semi-finished product is shaped by the "setting" process to form the inner cylindrical portion 4 $ # # & r + μ due to the shape of the threshold 4. The sizing die 2 used in the "setting" process is as shown in Fig. 6 (Β), and the cylindrical shape of the upper portion is formed in the same shape as the circular shape. The outer diameter of the shaped die 21 is still small. 13 200920513 The inner diameter of the outer tubular portion 2. In the machine 22, as shown in the sixth figure (the shaped punch 22a used by β. (1), the shaped convex portion having a cylindrical shape; the semi-finished product formed with the inner cylindrical portion 4 to the flange portion 3 The lower = 'right is placed on the sizing die 21 to make the sizing punch U; the inner cylindrical portion 4 is plastically deformed, and is filled in the space between the shaped concave portion and the convex portion, thereby forming the inner circle The shape of the barrel 4',
狀。 V :此，將形成内侧圓筒部4之「 「自由引伸」製程與「定型製程」，首先’以;= 之内側或外側不拘束之「自由 门邛2 汽邱4田… 引伸」之方式粗形成内側圓 ::4二因此’可防止由於外側筒部2被拘束而阻礙塑性 &動，可防止内側圓筒部4之板厚變薄。 再者，於本實施形態中，「自由引伸 外侧筒部2之内侧及外側之兩者 " ° 1有之狀態進行，但即使以僅 ::束外侧筒部2之内側之狀態，粗形成内側圓筒部4， 亦影響，即使於該情形，亦存在有可防止内侧圓筒部4 之板厚變薄之效果。 於、逆向引伸」製程結束時，形成有内側圓筒部4之 牛成品被移送至「多級壓縮引伸」。 第七圖表示「多級壓缩引#制# ^ 夕度珣）丨呷裂耘」之說明圖。於「多 級壓縮引伸」製程使用之模頭23,如第七圖所示，形成有 ®形狀之設置孔23a。該設置孔23a可容納外側筒部2。 於设置孔23a之内部設置有引導打孔機咖。引導打孔機 14 200920513 圓挺形狀之基部材咖之上方，突出設置有引 大弓丨導突起2纪之剖面形狀為圓形狀，與設置 孔版形成同輛。引導突起23d之外徑小於内側圓筒部4 之内控’將形成有内側圓筒部4之半成品設置於模頭烈， 成為於内侧圓筒部4盥引導$ w导犬起23d之間留有間隙b之狀 態。 、於7夕級壓縮引伸」製程所使用之壓縮引伸打孔機24 為圓柱形狀’於前端部分凹陷形成有引伸凹部24a。該引 伸凹部施之剖面形狀為圓形狀，與壓縮引伸打孔機24之 卜，彖开乂成同軸。引伸凹部24a之内徑小於内側圓筒部4之 外徑。 於「多級壓縮引伸」製程中，將凸緣部3設置於上 方’將外側筒部2***引伸凹部24a，將半成品設置於模 頭23。以該狀態使壓縮引伸打孔機24下降，壓縮引伸打孔 機之刖端24b進入外側筒部2與内側圓筒部4之間。如上 所述，引伸凹部24a之内徑小於内側圓筒部4之外徑，故 内側圓筒部4利用引伸凹部24a引伸，内側圓筒部4之外 表面減小，伴隨與此，相應於該外表面之減小之體積藉由 塑性流動，而轉變為内側圓筒部4之厚度，從而使内側圓 同。卩4之厚度增加。另一方面，内側圓筒部4之内側由於 引導突起23d而形狀被拘束，保有内側圓筒部4之内面之 形狀。再者’内侧圓筒部4之高度大小受到壓縮引伸打孔 機24之軸線方向之壓縮力，而壓縮為引導突起23(1之高度 大小。 15 200920513 夕級塵縮引伸」製程結束後之半成品之内側圓筒部 4之外徑與引伸凹部24a之内徑大小幾乎相同，上述半成 品之内側圓筒部4之内徑與引導突起23d之外徑大小幾乎 =同。如此，可藉由適當設定引伸凹部24a之内徑及引導 犬起23d之外徑，而使内側圓筒部4之厚度增加至期望之 厚度再者，本實施形態中，於一次「多級壓縮引伸」製 ^中，内側圓筒部4之厚度增加約3 %。本實施形態中， 可藉由利用具有更小内徑之引伸凹部24a之壓縮引伸打孔 機24a ’與具有更小外形之引導突起2况之引導打孔機 3按順序進行三〜四次「多級壓縮引伸」，而使内側圓 筒。P 4之板厚增加1〇 %左右。於「多級壓縮引伸」製程之 主要製程變數為引伸凹部24a之内徑、引伸率、廢縮引伸 打孔機24之打孔機力、潤滑等。於「多級塵縮引伸」製程 結束時，半成品被移送至「沖孔」製程。 —於/中孔」製程中，將半成品設置於沖孔模頭（圖未 示使打孔機下降’穿孔内側圓筒部4之底部知（如第 圖）於/中孔」製程結束時，半成品被移送至「型 鍛」製程。 第圖表示型锻」製程之說明圖。於「型鍛製程 使用之模頭26，如第八圖所干，报士、士 乐圃所不形成有圓形狀之設置孔 立a。该设置孔26a可容納外側筒部2。言史置孔施之内 =置有引導打孔機27。引導打孔機2?於近圓柱形狀之基 二才27a之上設置有引導突起饥。弓j導突起训之剖面 形狀為圓形狀，與設置孔26a形成同轴。引導突起抓之 16 200920513 外徑稍小於内側圓筒部4之内徑大小。 與「型鍛」製程使用之打孔機包括··圓筒形狀之套筒 28、收納於該套筒28之内部之圓柱形狀之型鍛打孔機29。 套同28 了相對於型锻打孔機29自由滑動。型锻打孔機29之 外徑稍小於套筒28之内徑。套筒28之上端安裝有彈簧3〇。 套筒28之内徑大於内側圓筒部4之外徑’如第八圖所示， 留有間隙c。 於「型鍛」製程將凸緣部3設置於上方，將外側筒部 2***設置孔26a，將半成品設置於模頭26。使套筒跗及 •锻打孔機29下降。套筒28進入外側筒部2與内側圓筒部 4之間’套筒之則端28與底部2a抵接，擠縮彈簧，停止 下降套筒28。伴隨與此，型鍛打孔機烈下降時，型鍛打孔 機29之前端與内側圓筒部4之前端抵接。進而，使型鍛打 减29下降，使内側圓筒部4壓縮，内側圓筒部4之内側 受引導^孔機27之引導突起27b拘束，故内側不能塑性流 動隨著型鍛打孔機29之下降，以使内側圓筒部4外侧擴 大之方式進订塑性流動’填充於由套筒找之内側與型鍛打 孔機29外.側構成之空間，内側圓筒部4之板厚得到增加。 於將「型鍛」前之内側圓筒部4之板厚設為t時，利用 H㈣侧圓筒部4之板厚設為t + c。再者，本實 施形態：，内側圓筒部4之板厚增加㈣.。 肩魏」製程之主要製程變數為型鍛打孔機別之打 卿、内側圓筒部4之板厚長度之比率、潤滑等。於 型鍛」製程結束時，半成品被移送至「割縫」製程。 17 200920513 如此藉由利用「多級壓縮引伸岑「 4 型锻j H > 加加工，而使内側圓筒部4之板厚增加， 予曰 部。 從而形成連接 第九圖表示「割缝」製程之說明圖。於「割縫 所使用之割縫模頭32，如第九圖所示，形 '、」、％ 艰成有圓形妝夕# 置孔32a。設置孔32a比外側筒部2之外緣稍大。< 〇又 32a可容納外側筒部2。於設置孔孤之入口部分叹= 刀32b以一定角度凹陷形成放射狀。 D、'、 於「割缝」製程所使用之割縫打孔機33為圓柱形狀。 割縫打孔機33之外徑稍小於外側筒部2之内徑。割缝打孔 機33之外周面於對應於割縫刀娜之位置突出設置有對應 =割縫刀32b之形狀之割缝突起33a。換而言之，該割: 突起33a以—定角度突出設置於割縫打孔機犯之外周面、·。 使割縫打孔㈣下降之情料，割縫突起咖可進 刀32h。 您 於「割縫」製程中，以將凸緣部3設於上方之狀態， 將外側筒部人設置孔32a，將半成品設置於割縫^頭 32。以該狀態’使割縫打孔機33下降，則割縫突起33a進 入縫刀32b，剪斷外侧筒部2之基部，於外側筒部2之 基部形成如第一圖或第二圖所示之固定孔5，同時利用割 縫犬起33a進行壓印（c〇ining)形成突起部6。該「割 缝」製程之主要製程變數為割縫模頭32與割縫打孔機犯之 間隔、割縫突起33a之切刀角度、割缝力。於「割縫」製 程、’.σ束時半成品被移送至「切邊」（trimming )製程。 18 200920513 於「切邊」製程，將半成品之凸緣部3之不必要部分 進订刀邊’形成四角、六角、八角鑛齒形狀等非圓 再者，於本實施形態中，如第一圖〜第四圖 〔 角形狀。 t烕八 於本實施形態、中，鑄（transferpress 品，以轉移單元移送至獨立之模頭間， 裝置）自「切坯」f程至「切、嘉制 仃各1程之壓鑄 如此’藉由羯自「切链」製程至「切邊=仃。 移切：自：連續形成’故可高效率地進行生產:再= 續壓鑄（—ivepress)，於模且内二：稱為連 定調而配置之結構之順送金屬模且，、將半成f—疋間隔之 「切邊」加工結製程之厂堅轉裝置)進行。 接部之内側圓筒部4之内二文：攻螺絲製程中，於連 程利用成形輥乳分接頭Γ a订螺刻。攻螺絲製 進行。 刀接碩（form r〇liing tap )或機械分接頭 於攻螺絲製程結桌本 油、切削屑、雜質以包含前、主工螺絲製程附著於半成品之 洗製程加以除去。於清^士凌㈣清洗、水清洗之清 溶融鋅鍍金等鍍金 、耘、、、。束蚪，利用無電鍍鍍金或 :如此，藉由•處理 腐蝕性，可防止锂年劣化 ’、目j之表面，而提高耐 螺帽1之情形時，可省略錄=爾金屬製作連接型 19 200920513 (連接型螺帽向被結合材之結合方法） 其次’就以本發明之連接型螺帽的製造方法製造之連 接型螺帽1向被結合材4〇之結合方法加以說明。第十圖表 不連接型螺帽向被連接材之結合方法之說明圖。連接型螺 帽1藉由加壓鉚接製程（reveting pr〇cess )结合於被结合 材40 °被結合材4〇中形成有稍小於外侧筒部2之外緣之安 裝孔40a。於加壓鉚接製程所使用之擠入用模頭邪中，形 成有大於外側筒部2之外緣之設置孔35a，可容納外側筒 部2。於設置孔35a之上方配置有近圓柱形狀之加壓成型 打孔機36。 將被結合材40以安裝孔4〇a與設置孔35a形成同軸之 方式，設置於擠入用模頭35上，將外侧筒部2安***裝孔 40a及設置孔35a而設置連接型螺帽丨。以該狀態使加壓 成型打孔機36下降，突起部6進行塑性變形之同時進入安 裝孔40a，進而，將凸緣部3擠入被結合材4〇。凸緣部3 被擠入被結合具材40時，擠入被結合材4〇之凸緣部3之體 積部分之被結合材40於固定孔5進行塑性流動而填充於固 定孔5。如此，藉由突起部6進入安裝孔6而於安裝孔 40a之側面產生較強加壓力，使被結合材4〇與連接型螺帽 1固定結合。進而，藉由將被結合材40填充於固定孔5， 而更牢固地使被結合材4〇與連接型螺帽丨固定結合。 又，如上所述，凸緣部3形成四角、六角、八角鋸齒 形狀等非圓形狀，被擠入被結合部材4〇 ’故於連接型螺帽 20 200920513 1上安装螺釘時’可抑制連接型螺 w 壞連接型螺帽】與被連接材4〇之結合。疋轉，仗而防止破 加屢鉚接製程之主要製程變數 合版安裝孔a之間痛 '突起部螺=結 寬及高度等。 〈厚度固疋孔5之 再者，於本實施形態中，利用上述攻 接部之内侧圓筒部4中螺刻螺紋於以:’ 接連接型螺帽之情形時，可省略上、/；：而於以自攻螺釘連 〜于Γ‘略上述攻螺絲製程。 又，本實施形態中’利用「多級壓縮 :」:吏内側圓筒部4之板厚增加而進行形成咖 「曰1 加工，相應需要’亦可僅利用「多級壓縮引伸」與 、又」中任-者’而使内側圓筒部4之板厚增加。又， 本發明中’於「多級壓縮引伸」之後進行「沖孔」，再進 沖孔 型鍛」之各製程之順 γ型锻」’然而本發明不受該製程之順序限定 厂多級壓縮引伸 「匕之 序’亦可以任意之順序進行。 ^’於本發明之連接型螺帽的製造方法中所使用之材 i:::定：麼延鋼板’亦可為銅板或不銹鋼板或鋁板 專非鐵金屬，若為金屬板材，則全部包含在内。 以上，關於現在最具實踐性的且較佳的實施形態對本 發明進行說明，但是本發明不受本發明之說明書中所揭示 之貧施聽限定，只要在不違反中請專利範圍以及說明書 整體上的發明要旨或思想的範圍内可適當進行變更，伴隨 如此變更之連接型螺帽的製造方法亦必須理解為包含於技 200920513 術範圍之中。 【圖式簡單說明】 第一圖係根據本發明之連接型螺帽的 接型螺 製造方法而製造之連 帽之立體圖。 第一圖係第一圖之縱剖面圖。 第二圖係第一圖之俯視圖。 第四圖係第一圖之仰視圖。 造〜造製程圖 第七圖係多級壓縮引伸製程之說明圖 第八圖係型锻製程之說明圖。 第九圖係割縫製程之說明圖。 第十圖係表示連接型螺帽向被連接材 圖。 之結合方法之說明 第十-圖係先前之實施形態之連接型螺帽之剖面 圖 【主要元件符號說明】 1 連接型螺帽 2 外側筒部 2a 底部 3 凸緣部 4 内侧圓筒部 22 200920513 4a 底部 5 固定孑L 6 突起部 7 螺紋 19 模頭（自由引伸製程） 19a 設置凸部 20 打孔機（自由引伸製程） 21 定型模頭 21a 定型凹部 22 定型打孔機 23 模頭（多級壓縮引伸製程） 23a 設置孔 23b 引導打孔機 23c 基部材 23d 引導突起 24 壓縮引伸打孔機 24a 引伸凹部 24b 壓縮引伸打孔機之前端 26 模頭（型鍛製程） 26a 設置孔 27 引導打孔機 27a 基部材 27b 引導突起 28 套筒 23 200920513 29 型鍛打孔機 30 彈簧 32 割縫模頭 32a 設置孔 32b 割缝刀 33 割缝打孔機 33a 割缝突起 35 擠入用模頭 36 加壓成型打孔機 40 被結合材 40a 安裝孔 50 連接型螺帽 51 螺帽本體 52 凸緣部 53 螺紋 54 溝部 b 間隙（引導突起與内側圓筒部之内側之間） c 間隙（套筒之内侧與内侧圓筒部之外側之間） t 板厚（型鍛製程前之内侧圓筒部） 24shape. V: This will form the "free extension" process and the "setting process" of the inner cylindrical portion 4, first of all, "the free door 邛 2 qiqiu 4 field... extension" The inner side circle is thickly formed: 4 and 2, therefore, it is possible to prevent the outer tube portion 2 from being restrained and to hinder the plasticity and movement, thereby preventing the thickness of the inner cylindrical portion 4 from becoming thin. Furthermore, in the present embodiment, "the inner side and the outer side of the freely-extended outer tubular portion 2 are in a state of "1", but the thickness is formed only in the state of only the inner side of the outer tube portion 2 of the bundle. The inner cylindrical portion 4 also affects the effect of preventing the thickness of the inner cylindrical portion 4 from becoming thinner. In the end of the "reverse extension" process, the inner cylindrical portion 4 is formed. The finished product is transferred to the "multi-stage compression extension". The seventh figure shows an explanatory diagram of "multi-level compression lead #制#^ 夕度珣)丨呷丨呷". The die 23 used in the "multi-stage compression and extension" process is formed with a ®-shaped setting hole 23a as shown in the seventh drawing. The arrangement hole 23a can accommodate the outer tube portion 2. A guide puncher is provided inside the set hole 23a. Guide punching machine 14 200920513 Above the base material of the round shape, the cross-sectional shape of the large bow guide protrusion is set to a circular shape, and forms the same vehicle as the stencil. The outer diameter of the guide projection 23d is smaller than the inner control of the inner cylindrical portion 4, and the semi-finished product in which the inner cylindrical portion 4 is formed is placed on the die, and is left between the inner cylindrical portion 4 and the guide dog. The state of the gap b. The compression/extension punch 24 used in the "7-stage compression and extension" process has a cylindrical shape and is formed with a recessed recess 24a formed in the front end portion. The drawing recess has a circular cross-sectional shape which is coaxial with the compression-extension punching machine 24. The inner diameter of the extension recess 24a is smaller than the outer diameter of the inner cylindrical portion 4. In the "multi-stage compression and extension" process, the flange portion 3 is placed on the upper side, and the outer tubular portion 2 is inserted into the extension concave portion 24a, and the semi-finished product is placed on the die 23. In this state, the compression drawing punch 24 is lowered, and the end 24b of the compression extension punch enters between the outer cylindrical portion 2 and the inner cylindrical portion 4. As described above, since the inner diameter of the extension concave portion 24a is smaller than the outer diameter of the inner cylindrical portion 4, the inner cylindrical portion 4 is extended by the extension concave portion 24a, and the outer surface of the inner cylindrical portion 4 is reduced, and accordingly, The reduced volume of the outer surface is converted to the thickness of the inner cylindrical portion 4 by plastic flow, thereby making the inner side the same. The thickness of 卩4 increases. On the other hand, the inner side of the inner cylindrical portion 4 is restrained in shape by the guide projection 23d, and retains the inner surface of the inner cylindrical portion 4. Further, the height of the inner cylindrical portion 4 is compressed by the axial direction of the compression extension punch 24, and is compressed into the guide protrusion 23 (the height of the height of 1). 15 200920513 The stage of the dust reduction and extension is a semi-finished product after the end of the process. The outer diameter of the inner cylindrical portion 4 is almost the same as the inner diameter of the extension recess 24a, and the inner diameter of the inner cylindrical portion 4 of the semi-finished product is almost the same as the outer diameter of the guide projection 23d. Thus, it can be appropriately set. The inner diameter of the extension recess 24a and the outer diameter of the guide dog 23d are guided to increase the thickness of the inner cylindrical portion 4 to a desired thickness. In the present embodiment, in the "multi-stage compression and extension" system, the inner side is provided. The thickness of the cylindrical portion 4 is increased by about 3%. In the present embodiment, it can be guided by the use of the compression extension punch 24a' having the smaller inner diameter of the extension recess 24a and the guide projection 2 having a smaller outer shape. The hole machine 3 performs three to four times of "multi-stage compression and extension" in order, and increases the plate thickness of the inner cylinder. P 4 by about 1%. The main process variable in the "multi-stage compression and extension" process is the extension concave portion 24a. Inner diameter, elongation At the end of the "multi-stage dust-extension" process, the semi-finished product is transferred to the "punching" process. In the / in the middle hole process, the semi-finished product will be processed. The semi-finished product is transferred to the "forging" process at the end of the process of cutting the punching die (not shown to lower the punching machine at the bottom of the inner cylindrical portion 4 of the perforation (as shown in the figure). The figure shows an illustration of the process of "forging". In the "die 26 used in the swaging process, as shown in the eighth figure, the reporter and the singer do not form a circular hole a. The setting hole 26a The outer tubular portion 2 can be accommodated. The inside of the hole is placed in the middle of the hole = the guiding punching machine 27 is provided. The guiding punching machine 2 is provided with a guiding protrusion hung on the base of the near-cylindrical shape 27a. The cross-sectional shape of the training is circular, and is coaxial with the installation hole 26a. The guiding protrusion 16 is 200920513, and the outer diameter is slightly smaller than the inner diameter of the inner cylindrical portion 4. The punching machine used in the "forging" process includes a cylindrical sleeve 28, a cylindrical forged hole housed inside the sleeve 28 29. The sleeve 28 is free to slide relative to the swaging punch 29. The outer diameter of the swaging punch 29 is slightly smaller than the inner diameter of the sleeve 28. The upper end of the sleeve 28 is fitted with a spring 3〇. The inner diameter is larger than the outer diameter of the inner cylindrical portion 4 as shown in the eighth figure, and the gap c is left. The flange portion 3 is placed above the "sweeping" process, and the outer tubular portion 2 is inserted into the installation hole 26a. The semi-finished product is disposed on the die 26. The sleeve 跗 and the forging puncher 29 are lowered. The sleeve 28 enters between the outer tubular portion 2 and the inner cylindrical portion 4, and the end 28 of the sleeve abuts against the bottom portion 2a. When the spring is stopped, the lowering sleeve 28 is stopped. When the swaging punch is lowered, the front end of the swaging punch 29 abuts against the front end of the inner cylindrical portion 4. Further, the swaging reduction 29 is lowered to compress the inner cylindrical portion 4, and the inner side of the inner cylindrical portion 4 is restrained by the guide projection 27b of the guide hole punching machine 27, so that the inside cannot be plastically flowed along with the swaging puncher 29 The lowering of the inner cylindrical portion 4 is such that the plastic flow is filled in a space formed by the inside of the sleeve and the outer side of the swaging puncher 29, and the thickness of the inner cylindrical portion 4 is obtained. increase. When the thickness of the inner cylindrical portion 4 before the "forging" is t, the thickness of the H (four) side cylindrical portion 4 is set to t + c. Further, in the present embodiment, the thickness of the inner cylindrical portion 4 is increased (four). The main process variables of the "Shouwei" process are the ratio of the thickness of the plate to the punching machine, the thickness of the inner cylindrical portion 4, and the lubrication. At the end of the swaging process, the semi-finished product is transferred to the "cutting" process. 17 200920513 By using "multi-stage compression and extension", "4 type forging j H > processing, the thickness of the inner cylindrical portion 4 is increased, and the ridge is increased. Thus, the connection of the ninth figure shows "slotting". Description of the process. In the kerf die 32 used for the kerf, as shown in the ninth figure, the shape ', ', and % are difficult to have a round makeup # #孔孔32a. The installation hole 32a is slightly larger than the outer edge of the outer cylinder portion 2. < The cymbal 32a can accommodate the outer tubular portion 2. The sigh is set at the entrance of the hole so that the knife 32b is recessed at a certain angle to form a radial shape. D, ', the slitting punch 33 used in the "slotting" process has a cylindrical shape. The outer diameter of the slit punch 33 is slightly smaller than the inner diameter of the outer tubular portion 2. The outer peripheral surface of the slit punching machine 33 is provided with a slit projection 33a corresponding to the shape of the slitting blade 32b at a position corresponding to the slitting knife. In other words, the cut: the projection 33a is protruded at a predetermined angle to the outer peripheral surface of the slit punching machine. The grooving hole (4) is lowered, and the kerf protrusion can be fed for 32 hours. In the "slotting" process, the outer tubular member is provided with a hole 32a and the semi-finished product is placed on the slit 32 in a state where the flange portion 3 is placed above. When the slit punch 33 is lowered in this state, the slit protrusion 33a enters the slit 32b, the base of the outer tubular portion 2 is cut, and the base of the outer tubular portion 2 is formed as shown in the first or second drawing. The fixing hole 5 is simultaneously embossed by the slit dog 33a to form the projection 6. The main process variables of the "slotting" process are the interval between the slotting die 32 and the slotting punch, the cutting angle of the slotted projection 33a, and the cutting force. The semi-finished product is transferred to the "trimming" process during the "cutting" process and the '.σ beam. 18 200920513 In the "cutting edge" process, the unnecessary portion of the flange portion 3 of the semi-finished product is fed into the edge of the blade to form a non-circular shape such as a quadrangular, hexagonal, or octagonal ore tooth shape. In the present embodiment, as shown in the first figure ~ Figure 4 [angular shape. In the present embodiment, the casting (transferpress product, transferred to the separate die by the transfer unit, the device) is from the "cutting blank" to the "cutting, cutting, and casting." Since the "cutting chain" process to "cutting edge = 仃. shifting: from: continuous formation" can be produced efficiently: again = continuous die casting (-ivepress), in the mold and inside two: called continuous The structure of the configuration is transferred to the metal mold, and the semi-finished "cut edge" processing process is performed. In the inside of the inner cylindrical portion 4 of the joint portion: in the tapping process, the thread is formed by the forming roller and the female tap. Tapping the screw system. The tool r接liing tap or mechanical tap is used to remove the oil from the tapping process. The oil, chips, and impurities are removed by a washing process that includes the front and main screw processes attached to the semi-finished product. Yu Qing ^ Shi Ling (4) cleaning, water cleaning, zinc, gold plating, gold plating, enamel, and. Bundle, using electroless gold plating or: In this way, by dealing with corrosiveness, it is possible to prevent lithium from deteriorating the surface of the eye, and when the nut 1 is improved, the connection type can be omitted. 200920513 (Method of bonding the connecting nut to the bonded material) Next, a method of joining the joined nut 1 manufactured by the method for manufacturing the connecting nut of the present invention to the bonded material 4 will be described. Tenth chart An explanatory diagram of a method of joining a non-connected nut to a connected material. The connecting nut 1 is joined to the bonded material 40 by a press-fit riveting process to form a mounting hole 40a slightly smaller than the outer edge of the outer cylindrical portion 2 by the bonded material 40. In the die for extrusion used in the pressurizing riveting process, a hole 35a larger than the outer edge of the outer tubular portion 2 is formed to accommodate the outer tubular portion 2. A press forming punch 36 having a nearly cylindrical shape is disposed above the set hole 35a. The bonded material 40 is disposed coaxially with the installation hole 35a so as to be coaxial with the installation hole 35a, and is inserted into the extrusion die 35, and the outer tubular portion 2 is inserted into the fitting hole 40a and the installation hole 35a to provide a connection nut. Hey. In this state, the press forming punch 36 is lowered, the projection 6 is plastically deformed and enters the mounting hole 40a, and the flange portion 3 is pushed into the bonded material 4''. When the flange portion 3 is pushed into the bonded material 40, the bonded material 40 which is pushed into the volume portion of the flange portion 3 of the bonded material 4 is plastically flowed in the fixing hole 5 to be filled in the fixing hole 5. As a result, the protruding portion 6 enters the mounting hole 6 to generate a strong pressing force on the side surface of the mounting hole 40a, and the bonded material 4A is fixedly coupled to the connecting nut 1 . Further, by filling the bonded material 40 in the fixing hole 5, the bonded material 4A is more firmly fixedly coupled to the connecting nut. Further, as described above, the flange portion 3 has a non-circular shape such as a quadrangular shape, a hexagonal shape, or an octagonal sawtooth shape, and is pushed into the joined member 4'', so that when the screw is attached to the connecting nut 20 200920513 1, the connection type can be suppressed. Screw w bad connection nut] combined with the connected material 4〇.疋 仗 仗 防止 防止 防止 加 加 加 屡 屡 屡 屡 屡 屡 屡 主要 主要 主要 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' In the present embodiment, in the case where the inner cylindrical portion 4 of the above-mentioned tapping portion is screwed into the connector to be connected with a nut, the upper and/or the upper nut can be omitted; : And with the self-tapping screws connected ~ ~ Γ ' slightly above the tapping screw process. Further, in the present embodiment, "multi-stage compression:" is used: the thickness of the inner cylindrical portion 4 is increased, and the "machine 1" is processed, and the "required" can be used only by "multi-stage compression and extension". In the middle of the person, the thickness of the inner cylindrical portion 4 is increased. Further, in the present invention, the "punching" is performed after "multi-stage compression and extension", and the gamma-type forging of each process of "punching and forging" is performed. However, the present invention is not limited to the order of the process. The compression extension "the order of the 匕" can also be carried out in any order. ^' The material used in the manufacturing method of the connecting nut of the present invention i::: the tempered steel plate can also be a copper plate or a stainless steel plate or The aluminum plate is not a ferrous metal, and if it is a metal plate, it is all included. The present invention has been described above with respect to the most practical and preferred embodiments, but the present invention is not disclosed in the specification of the present invention. The invention is not limited to the scope of the patent and the scope of the invention as a whole, and the method of manufacturing the connected nut as described above must also be understood as included in the technology 200920513. BRIEF DESCRIPTION OF THE DRAWINGS [First Description of the Drawings] The first drawing is a perspective view of a hood which is manufactured according to the method for manufacturing a connecting screw of the connecting nut of the present invention. The second figure is a top view of the first figure. The fourth figure is the bottom view of the first figure. The seventh figure is the description of the multi-stage compression and extension process. The eighth picture is the forging process. The ninth figure is an explanatory view of the sewing process. The tenth figure shows the connection type of the nut to the connected material. The description of the combination method is the tenth-picture section of the connecting nut of the previous embodiment. Fig. [Description of main component symbols] 1 Connecting nut 2 Outer tubular portion 2a Bottom 3 Flange portion 4 Inner cylindrical portion 22 200920513 4a Bottom 5 Fixing 孑L 6 Projection 7 Thread 19 Die (free extension process) 19a Setting Concave portion 20 punching machine (free extension process) 21 sizing die 21a sizing recess 22 sizing punch 23 die (multi-stage compression and extension process) 23a setting hole 23b guiding punch 23c base member 23d guiding projection 24 compression extension Punch 24a Extension recess 24b Compression extension punch front end 26 Die (scraping process) 26a Setting hole 27 Guide punch 27a Base member 27b Guide projection 28 Sleeve 2 3 200920513 29 Forging punching machine 30 Spring 32 Slotting die 32a Setting hole 32b Slotting knife 33 Slotting punching machine 33a Slotting projection 35 Squeeze die 36 Pressing forming punching machine 40 Bonded material 40a Mounting hole 50 connecting nut 51 nut body 52 flange portion 53 thread 54 groove portion b gap (between the guide projection and the inner side of the inner cylindrical portion) c gap (between the inner side of the sleeve and the outer side of the inner cylindrical portion) t plate thickness (inside cylinder before forging process) 24