200848177 九、發明說明： 【發明所屬之技術領域】 本發明係隸屬一種自行車花轂之製造技術，呈體 3言係指-種可提升製造速度、且增進花轂強度與硬 造方法及其沖壓模具’藉以克服現有花轂 衣ie連度杈及品質不佳的問題。 【發明之先前技術】 按自行車花轂係一種用於將車輪樞設於車架之 要兀件’該花轂大致形成一管狀體，以供固設於 二花穀軸穿樞，且花轂兩端並形成有較大徑之葉片 上具有複數穿孔，供與車輪輪圈間架設支標用 的ίϊ二般花轂之製造則係將預先形成特定長度 經滾壓形成兩端具輪弧部之半成品後，再利ς η塱杈具將兩輪弧部擠Μ成葉片 15 20 製造方法具有速度慢與精等 缺點，因此業界開發有多種不同的花穀製造“ f 我國專利公告第154540號及發明第126細號等；° 其中公告第15454G號所揭示之製造方法係 =先形成直管（S101) ’接著利 式】 葉片（_)的步驟形成花“心=用If鐘 花轂成品，而發明第ί263 ” 取後形成 154540 #*^ 料職相較於第 # 兩者之主要製造方向相同，僅在於 增加後績之沖孔、修整盥倒亩 在於 統者提升速度；“倒角專步驟，兩者雖可較傳 5 25 200848177 但由於現有花轂主要係以銘擠型之有缝管或無縫 管做為原材料，受到其硬度、強度與延展性不足的影 響，如利用沖壓方式形成葉片，則葉片兩側壁面需相 對貼靠，因此其轉摺處容易產生破裂的現象【不良率 5 高達2〜3成】，因此不論何者其葉片的成型仍係以 擠壓手段來達成，為如此不僅存在有品質不良與後續 組裝的問題，同時加工速度也無法加快，故不僅增加 加工的工時，且連帶也會提高花轂的製造成本，降低 其經濟效益。 10 緣是，本發明人乃針對前述對花轂製造時所面臨 的問題深入探討，並藉由多年從事相關產業之研發與 製造經驗，積極尋求解決之道，經不斷努力之研究與 發展，終於成功的開發出一種花轂製造方法及其沖壓 模具，供克服前述速度慢及品質不佳的問題，同時可 15 增進花轂的硬度與強度。 【發明内容】 因此，本發明主要在於提供一種花轂製造方法，藉 以增進花轂之製造效率，且提升花轂的硬度與強度。 為此，製造方法包含有： 20 一形成直管之步驟，將供用於製作花轂之管體裁剪 成預定長度的直管； 一形成輪弧部之步驟，將前述直管兩端予以形成弧 凸狀輪弧部，且於兩輪弧部之相異外侧分別凸伸有具特 定長度、且較小徑的端口，而形成一花轂半成品； 6 200848177 一退火之步驟，在形成花轂半成品後，利用退火技 術對花轂半成品進行退火； 士 一模具沖壓葉片之步驟，在完成退火步驟後，將花 轂半成品沖壓技術對花轂半成品兩端進行沖壓，使花轂 半成品之兩輪弧部分別彎摺壓合形成壁面疊合的葉片， 而形成花轂成品。 制又，本發明另在提供一種花轂沖壓模具，以降低 衣k設備之成本，且可減少不良品的發生。 决目2發明之沖壓模具主要係透過下列的技術手段， 采/、體貫現前述的目的與效能：其包含有： n:下模’其係於—111定板頂面設有—下模眼，該下 ^頂面形成有-壓合端面，且下模眼於壓合端面上形 成有一這供花轂半成品端㈣插之鼓槽； 15 設於第 伸縮模，其具有一第一 模座 第二模座與二分 下模固定相對模塊，該第—模座係鎖擎於 可相對蓋合上二:;眼—側，且第一模座並樞設有一 弟—杈座，第一、二模座相對内面分別形 ^二可ΐ置前述模塊之容槽，ϊ中模塊可相對1: 下 20 滑動，再者兩 轂半成品之模2拉塊相對表面各形成有一可相對夾合花 品輪弧部之，且模穴兩端分別形成有對應花轂半成 合端面；面’又模塊於上、下雨端分別形成-壓 —上模，苴你 上模眼，、好固定板底面利用鎖固元件鎖設有 ^果眼對應下模之下模眼，再者上模眼底 7 200848177 面2成有一對應伸縮模之壓合端面，且壓合端面上形成 有道供花轂半成品另一端口寂插之嵌槽； 、，藉此，透過前述技術手段的展現，讓本發明可有效 ，進，轂的製造速度與效率，且可降低不良率，同時 5 提升花轂的硬度與強度，進一步延長花轂的使用壽命 ，如此可增加其附加價值，進一步能增進產品之競 力與經濟效益。 #為使貴審查委員能進一步了解本發明的構成、特 徵及其他目的，以下乃舉本發明之若干較佳實施例，並 10 詳細Γ月如后’同時讓熟悉該項技術領域者能 夠具體貫施，惟以下所述者，僅在於說明本發明之較俨 貫施例，並非用以限制本發明之範圍，故凡有以本發日^ 之精神為基礎，而為本發明任何形式之修飾或變更:比 仍應屬於本發明意圖保護之範轉。 15 【實施方式】 本發明係一種花轂製造方法及其沖壓模具，其中刹 造方法係如第二圖所揭示者，包含有—形成直管（S2^ )、一形成輪弧部（S202 )、一退火（S203 )及一 沖壓葉片（S2G4)等步驟所形成，而能如第三圖至第五 2〇圖所揭示者’於預先形成的直管⑴兩端形成弧凸狀之 輪弧部（2A)，且於兩輪弧部（2A)相異外側凸伸有一 平直狀之端口（2B)，而形成花轂半成品（2)，最後 利用沖壓技術分別將兩輪弧部（2A)各自形成葉片 )，進而形成花轂（3)之成品；其中： ’、 25 形成直管（S2G1)之步驟，其係如第三圖所示，將 200848177 銘質之空心無縫管裁剪成預定長度的直管⑴· 之技前模具打壓 定長度、且較小徑的目異外側分別凸伸有具特 (2)，如第四圖所示； ）而形成—花轂半成品 (2)ΐ=3退Sir广直管⑴形成花穀半成品 進行退火，二對前述花財成品⑴ )步：沖，丰(Γ)之步驟，ΐ完成退火_ 沖壓模展中’σσ (2)置於如罘六、七圖所示之 -圖所+成。口（）兩端進行沖壓【如第八〜十 15 、彎摺壓；成=成品(2)之兩輪弧部(2A)分別 成品；口开/成壁面$合的葉片（3A) ’而形成花轂⑺ 堡葉理（S2G5)之步驟，本發明並可於前述模具沖 疒扣L、、（S204)之步驟後利用熱處理技術對花轂（3)進 料的熱處理，供提升花轂（3)的構體強度與硬度， 曰以延長花轂（3)之使用壽命。 ^ " 沖斤至於前述模具沖壓葉片（S204 )之步驟中所使用的 模具，其結構則係如第六圖至第八圖所示者，該沖 ^板包含有一下模（10)、一伸縮模（20)及一上模（ 、，）’讓前述花轂半成品（2)可置於伸縮模（20)内， 二矛】用下模（10)與上模（30)相對花轂半成品（2)兩 9 200848177 端沖壓，使花轂半成品（2)兩端之輪弧部（2A)可經沖 壓形成花轂（3)葉片（3A); 其中下模（10)係於一固定板（11)頂面設有_下 模眼（12)，該下模眼（12)具有一可穿入固定板（^ 5 )之凸柱（丨3)，且固定板（11)並利用鎖固元件（14 )由下往上鎖掣該下模眼（12)，再者下模眼（12)頂 面形成有一對應伸縮模（20)之壓合端面（15)，且下 模眼（12)於壓合端面〇5)上形成有一道供花轂半成 口口（2)端口（2B)鼓插之嵌槽（16)，以供花轂半成品 10 (2)於沖壓模具定位之用； 而伸縮模（2 0 )則具有一第一模座（21 )、一第二 模座（22)與二分設於第一、二模座（21) (22)上之 . 相對模塊（24) (25)，其中第一模座（21)係利用鎖 固元件鎖掣於下模（10)固定板（11)頂面之下模眼（' 15 12) 一側，而第二模座（22)則枢設於第一模座（21) 異於下模眼（12 )的另一側，且兩者可相對蓋合，前述 第一、二模座（21) (22)相對内面分別形成有一可容 置模塊（ 24) ( 25 )之容槽（ 210 ) ( 220 )，且容槽（ 210 ) ( 220 )相對上、下模（30) (1〇)延伸模塊（24 20 ) ( 25 )可相對上、下模（30) (10)滑動，又第一、 二模座（21) (22)内具有與容槽（21〇) (22〇)同向 延伸之導槽（211) (221)，再者第一、二模座（21) (22) —側分別具有可相對錯開、且同軸樞設之樞塊（ 212) ( 222)，其中第二模座（22)異於樞塊（222) 一 25 侧表面並設有一握把（23)，供使用者操控第二模座（ 200848177 22)相對第一模座（21)之啟閉。而前述兩模塊（24) (25)具有可滑設於第一、二模座（21) (22)導槽（ 叫⑽）之導軌⑽）⑽），再i賴Γ(24 )(25)相對表面各形成有一可相對夾合花轂半成品（2 5 )之模穴（241) (251)，且模穴（241 ) ( 251 )兩端 分別形成有對應花轂半成品（2)輪弧部（2Α)之弧導面 ( 242) ( 252)，又模塊（ 24) ( 25)於上、下兩端分 別形成對應上、下模（3〇) (1〇)之壓合端面（243)( 253 )，再者第一、二模座（21) (22)之導槽（2ιι) ίο ( 221)内於模塊（24) ( 25)導塊（240) ( 250)下方 設有一復位元件（26)，讓模塊（ 24) ( 25)可相對第 一、二模座（21) (22)自動向上復位； 再者上模（30)係於一固定板（31)兩側分設有一 向下延伸之限位板（32)，兩限位板（32)適可滑設於 15伸縮模（20)第一、二模座（21) (22)閉合時之兩側 ，以避免沖壓時第一、二模座（21) (22)開啟，兩限 位板（32)底端内側分別形成有一導斜面（32〇)，以便 於導入，又固定板（31)底面利用鎖固元件鎖設 有一上模服（33)，該上模眼（33)適對應下模（1〇p 20 之下模眼（12 )與伸縮模（20 )模塊（24) ( 25 )之相 對模穴（ 241 ) ( 251 )，再者上模眼（33)底面形成有 一對應伸縮模（20)之壓合端面（35)，且上模眼（33 )於壓合端面（35)上形成有一道供花轂半成品（2)另 一端口（2B)嵌插之嵌槽（36)，以供花轂半成品（2) 25 於沖壓模具定位之用； 11 200848177 2此，組構成一可迅速沖壓形成花轂（3)葉片（3a )之花轂製造方法及其沖壓模具者。 ^而關於本發明沖壓模具之實際運用，則請配合參看 第七十一圖所顯示者，其在未操作前上模（3〇)後位 5 =下模（1〇)與伸縮模（20)上方，而伸縮模（20)之 第二模座（22)則利用握把（23)向外張開。當操作時 係將花轂半成品（2)以一端端口（2β)插置於下模（ 10)下模眼（12)之嵌槽（16)内，並使花轂半成品（2 )=段貼靠於伸縮模（2〇)第一模座（21)之模塊（24 1〇 )杈穴（241)内，接著利用握把（23)操作第二模座（ 22)相對第一模座（21)蓋合，使花轂半成品中段 包覆於伸縮模（20)之模塊（ 24) ( 25)模穴（241)( 251)間，再令上模眼（33)局部下降，而使花轂半成品 (2)上端之另一端口（2β)插置於上模（3〇)上模眼（ 15 犯）之嵌槽（36)内【如第十圖所示】； 接者讓上模眼（33)利用沖壓設備向下沖壓花轂半 成品（2)，此時伸縮模（2〇)之模塊（24) ( 25)會同 步相對第一、二模座（21) (22)向下沖壓，而由^模 塊（24) (25)之模穴（ 241 ) ( 251 )兩端分別形成有 2〇 對應輪弧部（2Α)之弧導面（242 ) ( 252 )，讓花轂半 成品（2)之兩端輪弧部（2Α)相對壁面受導引向外延伸 ’且受上、下模（30) ( 10)之壓合端面（35) ( 15) 與模塊（ 24) ( 25 )壓合端面（ 243 ) ( 253 )而相對壓 合【如第十一圖所示】，進而形成具葉片（3Α)之花轂 12 200848177 _ 的料，㈣花鮮“（2)經過退火（ 湖）之步驟後，花轂半成品⑺具有較佳的延展性， 而可承受沖_具㈣時的快速變化花轂⑺的生產效 率與良率，以節省工時及製造成本，且藉由敎與熱處 ，的作業’進—步可提升花轂⑺的強度與硬度，有效 提升產品之品質，並延長其使用壽命，而能增加花轂 )的附加價值與經濟效益。 綜上所述，本發明具有上述眾多的實用價值，因此 本發明確實為一新穎進步的創作，在相同的技術領域中 10 未見相同或近似的產品公開使用，故本發明已符合發明 專利的要件，乃依法提出申請，祈請早日賜准本案發明 專利。 13 200848177 【圖式簡單說明】 5 10 第一圖 第二圖 第三圖 第四圖 第五圖 弟六圖 弟七圖 第八圖 第九圖 第十圖 ••係習式花轂製造方法之流程示意圖。 係本發明花轂製造方法之流程示: 係本發明花轂預先裁剪成直管之°: 係本發明花轂形成半成品之轴 ^面示意圖。 係本發明花轂之軸向斷面示意圖面不意圖。 係本發明花穀沖壓模具之立體二解 係本發明花轂沖壓模具之組 、=圖。 係本發明花穀沖壓模具開模動作之圖二 係本發明花轂=具示意圖。 圖。 化軟+成品之動作示意 15 第十—圖示：ί發明花轂沖壓模具於沖壓花穀半成品之動作 【主要元件符號說明】 (sl〇i)形成直管 (5102) 形成輪弧部 (5103) 油壓擠壓葉片 (S201 )形成直管 (S202 )形成輪弧部 (S203 )退火 (S204) 模具沖壓葉片 (S205 )熱處理 (1) 直管 ^2A) 輪弧部 ^3) 花轂 (2) (2B) (3A) 半成品 端口 葉片 14 200848177 (10) 下模 (11) 固定板 (12) 下模眼 (13) 凸柱 (14) 鎖固元件 (15) 壓合端面 (16) 嵌槽 (20) 伸縮模 (21) 第一模座 (210) 容槽 (211) 導槽 (212) 柩塊 (22) 第二模座 ( 220 ) 容槽 (221) 導槽 (222 ) 樞塊 (23) 握把 (24) 模塊 (240 ) 導塊 (241) 模穴 ( 242 ) 弧導面 ( 243 ) 壓合端面 (25) 模塊 ( 250 ) 導塊 (251) 模六 (252 ) 弧導面 ( 253 ) 壓合端面 (26) 復位元件 (30) 上模 (31) 固定板 (32) 限位板 (320 ) 導斜面 (33) 下模眼 (34) 鎖固元件 (35) 壓合端面 (36) 嵌槽 15200848177 IX. INSTRUCTIONS: [Technical Field] The present invention belongs to a bicycle flower hub manufacturing technology, and the invention is a type of machine that can improve the manufacturing speed, and enhance the strength and hardening method of the hub and the stamping thereof. The mold 'to overcome the problem of the existing flower hubs and the quality. [Previous Technology of the Invention] A bicycle hub is a main member for pivoting a wheel to a frame. The flower hub generally forms a tubular body for fixing to a two-flower shaft, and the flower hub The two ends of the blade formed with a large diameter have a plurality of perforations, and the manufacturing of the rims and the hubs for erecting the rims between the wheel rims is formed by pre-forming a specific length by rolling to form the arc portions at both ends. After the semi-finished products, the ς 塱杈 塱杈 将 将 两 两 两 两 两 15 15 15 15 15 15 15 15 15 15 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 And the invention No. 126, etc.; wherein the manufacturing method disclosed in the publication No. 15454G is to form a straight pipe (S101), and then the step of the blade (_) forms a flower "heart = using If clock hub finished product And the invention of the ί263 ” after the formation of 154540 #*^ material job compared to the # # the main manufacturing direction is the same, only to increase the performance of the punching, trimming down the acres in the overall speed of promotion; "chamfering Special steps, although the two can be compared 5 25 2008481 77 However, since the existing flower hubs mainly use the slitted pipe or seamless pipe as the raw material, which is affected by the lack of hardness, strength and ductility, such as the formation of the blade by stamping, the two side walls of the blade need to be opposite. It is easy to produce rupture at the turning point [Non-probability rate 5 is as high as 2~3%], so no matter which part of the blade is formed by extrusion, there are not only poor quality and subsequent assembly. The problem, at the same time, the processing speed can not be accelerated, so not only increase the processing time, but also increase the manufacturing cost of the flower hub, reducing its economic benefits. 10 The reason is that the inventor has in-depth discussion on the problems faced in the manufacture of the flower hub, and has been actively seeking solutions through years of experience in R&D and manufacturing of related industries, and has been continuously researching and developing. Successfully developed a flower hub manufacturing method and a stamping die for overcoming the aforementioned problems of slow speed and poor quality, and at the same time improving the hardness and strength of the hub. SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a method of manufacturing a flower hub for improving the manufacturing efficiency of a flower hub and improving the hardness and strength of the flower hub. To this end, the manufacturing method comprises: a step of forming a straight pipe, cutting a pipe body for making a flower hub into a straight pipe of a predetermined length; and forming a wheel arc portion, forming an arc of the two ends of the straight pipe a convex wheel arc portion, and a port having a specific length and a small diameter is respectively protruded from the opposite sides of the two-wheel arc portion to form a flower hub semi-finished product; 6 200848177 an annealing step in forming a flower hub semi-finished product After that, the annealing process is used to anneal the semi-finished product of the hub; the step of stamping the blade by the mold is completed, and after the annealing step is completed, the semi-finished stamping technology of the hub is used to punch the two ends of the semi-finished product of the hub, so that the two arc portions of the semi-finished product of the hub are finished. Do not bend and press to form the wall-covered blades to form the finished product. Further, the present invention further provides a flower hub stamping die for reducing the cost of the garment k device and reducing the occurrence of defective products. The stamping die of the invention 2 is mainly through the following technical means, adopting the above-mentioned purpose and effect: it includes: n: the lower die is attached to the top surface of the -111 fixed plate - the lower die The lower surface of the lower surface is formed with a press-fit end surface, and the lower mold eye is formed with a drum groove for inserting the semi-finished end (4) of the flower hub on the press-fit end surface; 15 is disposed on the first telescopic mold, and has a first mold base The second mold base and the two-part lower mold are fixed relative to the module, and the first mold base locks the upper mold to the opposite side; the eye-side, and the first mold base is pivoted with a brother-seat, first, The two mold bases are respectively shaped on the inner surface of the module, and the modules of the two modules can be slid relative to the 1:20, and the opposite surfaces of the molds of the two hubs and the semi-finished products are respectively formed with a correspondingly symmetrical flower. The arc portion is formed, and the two ends of the cavity are respectively formed with corresponding half-finished end faces of the flower hub; the surface of the module is formed on the upper and lower rain ends respectively to form a press-upper die, and the upper die is used, and the bottom surface of the fixed plate is utilized. The locking component lock is provided with a ^ eye corresponding to the lower die under the lower die, and then the upper die bottom 7 200848177 Corresponding to the pressing end surface of the telescopic mold, and forming a groove for the other port of the semi-finished product of the flower hub to be inserted into the pressing end surface; thereby, by the above-mentioned technical means, the invention can be effective, enter, and the hub The manufacturing speed and efficiency can reduce the defect rate, and at the same time, increase the hardness and strength of the flower hub, and further extend the service life of the flower hub, thus increasing the added value and further enhancing the competitiveness and economic benefits of the product. In order to enable the reviewing committee to further understand the composition, features and other objects of the present invention, the following are some preferred embodiments of the present invention, and 10 are detailed in the following months, while allowing those skilled in the art to be able to The following is a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and thus is based on the spirit of the present invention, and is a modification of any form of the present invention. Or change: the ratio should still belong to the intended protection of the present invention. [Embodiment] The present invention relates to a flower hub manufacturing method and a stamping die thereof, wherein the braking method is as disclosed in the second figure, comprising: forming a straight pipe (S2^) and forming a wheel arc portion (S202) Formed by an annealing (S203) and a stamping blade (S2G4), and can be formed into an arc-shaped arc at both ends of the preformed straight pipe (1) as disclosed in the third to fifth figures. Part (2A), and a flat port (2B) protrudes from the opposite side of the two-arc (2A), and forms a semi-finished product (2). Finally, two arcs (2A) are respectively formed by stamping technology. Each of the blades is formed to form a finished product of the flower hub (3); wherein: ', 25 forms a straight tube (S2G1), which is cut as shown in the third figure, and the hollow seamless tube of 200848177 is cut into The straight pipe of the predetermined length (1)· is pressed to a fixed length, and the outer side of the smaller diameter is respectively protruded with a special (2), as shown in the fourth figure;) and formed a semi-finished product (2) ΐ=3 retreat Sir wide straight tube (1) to form a semi-finished product of Huagu for annealing, and two pairs of the aforementioned finished products (1)) Step: Chong, Feng ( ) Of the step, ΐ annealing is completed stamping die developing _ 'σσ (2) disposed such as Fu six, seven shown in FIG. - A + to the FIG. Both ends of the mouth () are stamped [such as the eighth to tenth, the bending pressure; the finished product (2) of the two rounds of the arc (2A) respectively finished; the mouth opening / forming the wall of the combined blade (3A) ' The step of forming the flower hub (7) Fort leaf (S2G5), the invention can use the heat treatment technology to heat the flower hub (3) after the step of punching the buckle L, (S204), for lifting the flower hub (3) The strength and hardness of the structure, in order to prolong the service life of the hub (3). ^ " The mold used in the step of the above-mentioned mold stamping blade (S204), the structure is as shown in the sixth to eighth figures, the punching plate includes the lower mold (10), one The telescopic mold (20) and an upper mold (,,) ' allow the aforementioned flower hub semi-finished product (2) to be placed in the telescopic mold (20), and the second spear] uses the lower mold (10) and the upper mold (30) opposite the flower hub Semi-finished product (2) two 9 200848177 end stamping, so that the wheel arc portion (2A) at both ends of the flower hub semi-finished product (2) can be punched to form the flower hub (3) blade (3A); wherein the lower mold (10) is fixed at a fixed The top surface of the plate (11) is provided with a lower die (12), the lower die (12) has a protruding post (丨3) which can be inserted into the fixing plate (^5), and the fixing plate (11) is utilized The locking component (14) locks the lower die (12) from bottom to top, and further forms a pressing end face (15) corresponding to the telescopic die (20) on the top surface of the lower die (12), and the lower die (12) A fitting groove (16) for the hub end of the flower hub (2) port (2B) is formed on the pressing end face 〇 5) for the positioning of the flower hub semi-finished product 10 (2) for the stamping die ; and the expansion mode (2 0 ) has a The mold base (21), a second mold base (22) and two parts are disposed on the first and second mold bases (21) (22). The opposite module (24) (25), wherein the first mold base (21) The locking member is locked to the side of the mold eye (' 15 12) under the top surface of the lower mold (10) fixing plate (11), and the second mold base (22) is pivoted to the first mold base (21) Different from the other side of the lower mold eye (12), and the two can be oppositely closed, the first and second mold bases (21) (22) are respectively formed with a accommodating module (24) (25) opposite to the inner surface. a receptacle (210) (220), and the receptacle (210) (220) is opposite to the upper and lower molds (30) (1) extension module (24 20 ) (25) relative to the upper and lower molds (30) ( 10) sliding, and the first and second mold bases (21) (22) have guide grooves (211) (221) extending in the same direction as the pockets (21〇) (22〇), and the first and second modes are further Seat (21) (22) - side each having a relatively staggered and coaxially pivoted pivot block (212) (222), wherein the second mold base (22) is different from the pivotal surface of the pivot block (222) There is a grip (23) for the user to control the opening and closing of the second mold base (200848177 22) relative to the first mold base (21). The two modules (24) (25) have guide rails (10) (10) which are slidably disposed on the guide grooves (called (10) of the first and second mold bases (21) (22), and then (24) (25) Each of the opposite surfaces is formed with a cavity (241) (251) which can clamp the semi-finished product of the flower hub (25), and the opposite ends of the cavity (241) (251) are respectively formed with a corresponding semi-finished product hub (2) (2Α) arc guide surface ( 242) ( 252), and module ( 24 ) ( 25 ) form the pressing end face (243) corresponding to the upper and lower molds (3〇) (1〇) at the upper and lower ends respectively. ( 253 ), in addition, the first and second die holders (21) (22) guide groove (2ιι) ίο (221) is provided with a reset element under the module (24) (25) guide block (240) (250) (26), the module (24) (25) can be automatically reset upward relative to the first and second mold bases (21) (22); and the upper mold (30) is attached to both sides of a fixed plate (31). a limiting plate (32) extending downwardly, and two limiting plates (32) are slidably disposed on both sides of the first and second die seats (21) (22) of the 15 telescopic die (20) to avoid punching When the first and second mold bases (21) (22) are opened, a guide rail is formed on the inner side of the bottom end of each of the limit plates (32). (32〇), in order to facilitate the introduction, and the bottom surface of the fixing plate (31) is locked with an upper mold garment (33), and the upper mold eye (33) is adapted to correspond to the lower mold (1〇p 20 under the mold eye) (12) opposite the cavity (241) (251) of the module (24) (25) of the telescopic mold (20), and a pressing end face of the corresponding telescopic mold (20) is formed on the bottom surface of the upper die (33). And the upper mold eye (33) is formed on the pressing end face (35) with a groove (36) for inserting the other end of the flower hub semi-finished product (2) (2B) for the flower hub semi-finished product (2) 25 For the positioning of stamping die; 11 200848177 2 , the group constitutes a flower hub manufacturing method and a stamping die which can be quickly stamped to form the flower hub (3) blade (3a). ^ Regarding the practical application of the stamping die of the invention, Please refer to the figure shown in Figure 71. Before the operation, the upper die (3〇) is positioned 5 = the lower die (1〇) and the telescopic die (20), and the second of the telescopic die (20). The mold base (22) is opened outward by the grip (23). When operating, the hub semi-finished product (2) is inserted into the lower mold (10) with the one end port (2β). (16), and the flower hub semi-finished product (2)=segment is placed in the module (24 1〇) acupoint (241) of the first mold base (21) of the telescopic mold (2〇), and then the grip is used ( 23) operating the second mold base (22) to cover the first mold base (21), so that the middle part of the semi-finished product hub is wrapped around the module (24) of the telescopic mold (20) (25) mold cavity (241) (251) During the process, the upper mold eye (33) is partially lowered, and the other port (2β) at the upper end of the flower hub semi-finished product (2) is inserted into the upper mold (3 〇) on the mold eye (15 guilty). Inside [as shown in the tenth figure]; the receiver allows the upper mold eye (33) to use the stamping equipment to punch down the semi-finished product of the hub (2), at this time the module (24) (25) of the telescopic mold (2) will Synchronously presses the first and second die holders (21) (22) downwardly, and the two sides of the cavity (241) (251) of the ^ module (24) (25) are respectively formed with two corresponding arc portions (2Α). The arc guide surface (242) (252) allows the arc ends (2Α) of the two ends of the hub (2) to be guided outwardly relative to the wall surface and is subjected to the upper and lower molds (30) (10) Pressing the end face (35) (15) with the module (24) (25) and pressing the end face (243) (253) For the press-fit [as shown in Figure 11], and then to form the blade (3Α) flower hub 12 200848177 _ material, (4) flower fresh "(2) after the annealing (lake) step, the flower hub semi-finished product (7) has Better ductility, and can withstand the rapid change of the production efficiency and yield of the flower hub (7) in order to save man-hours and manufacturing costs, and by the operation of the hot and cold, Improve the strength and hardness of the flower hub (7), effectively improve the quality of the product, and extend its service life, which can increase the added value and economic benefits of the flower hub. In summary, the present invention has many of the above-mentioned practical values, and thus the present invention is indeed a novel and progressive creation. In the same technical field, 10 the same or similar products are not publicly used, so the present invention has been in accordance with the invention patent. The essentials are to apply in accordance with the law, and pray for the early grant of the invention patent in this case. 13 200848177 [Simple description of the diagram] 5 10 The first picture, the second picture, the third picture, the fourth picture, the fifth picture, the sixth picture, the younger brother, the seventh picture, the eighth picture, the ninth picture, the tenth picture, the • Schematic diagram of the process. The flow of the method for manufacturing the flower hub of the present invention is as follows: The flower hub of the present invention is pre-cut into a straight tube: The axial view of the flower hub forming the semi-finished product of the present invention. The axial section of the flower hub of the present invention is not intended to be schematic. The stereoscopic two-solution of the flower valley stamping die of the present invention is a group of the flower hub stamping die of the present invention, = figure. Figure 2 is a schematic view of the opening operation of the flower valley stamping die of the present invention. Figure. The action of softening + finished product 15 Tenth - graphic: ίInvented the hub of stamping die in the process of stamping the semi-finished products of the flower valley [main component symbol description] (sl〇i) forming a straight tube (5102) forming a wheel arc (5103) Hydraulic squeeze vane (S201) to form straight pipe (S202) to form wheel arc (S203) annealing (S204) die stamping blade (S205) heat treatment (1) straight pipe ^2A) wheel arc ^3) flower hub ( 2) (2B) (3A) Semi-finished port blade 14 200848177 (10) Lower die (11) Fixing plate (12) Lower die (13) Post (14) Locking element (15) Pressing end face (16) Insert Slot (20) Telescopic mold (21) First mold base (210) Groove (211) Guide groove (212) Block (22) Second mold base (220) Groove (221) Guide groove (222) (23) Grip (24) Module (240) Guide Block (241) Cavity (242) Arc Guide (243) Press Face (25) Module (250) Guide Block (251) Die Six (252) Arc Guide Face ( 253 ) Press-fit end face (26) Reset element (30) Upper die (31) Fixing plate (32) Stopper plate (320) Leading bevel (33) Lower die (34) Locking element (35) Press fit End face (36) slot 15