201038386 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種「自行車前叉鍛造一體成型技術」，尤指 一種可將前叉肩蓋、前叉豎管、油壓内管一體成型出之自行車前 叉，俾有效增加其整體強度，與減少其製程者。 【先前技術】 〇 按’目前一般習知之自行車前叉，多如第九圖所示，其包含 有：一前叉肩蓋(70)、一前又豎管(71)及二油壓内管（72)，其中， 前叉肩蓋(70)、前叉豎管（71)與油壓内管（72)係各別成型，且該 前又肩蓋(70)上方中央與下方兩側係分設有一可供前叉豎管（71) 與油壓内管（72)穿入之鎖結孔(7〇1)(7〇2)，俾以在穿入後螺鎖， 讓前叉肩蓋(70)、前又登管(71)及油壓内管(72)能結合在一起， 〇 該二油壓内管⑽外並還套設有油壓外管，據以構成一自行車前 叉。 惟，因為前又肩蓋(7〇)、前叉豎管(71)與油壓内管⑽需各 別成型後’再行組合’故生產上將較為繁丨貞、耗時，而不符合經 濟效益’況且該需要相互結合之自行車前叉，其整體之結構強度 將較差’使當自行輪常行經崎歧路面時，該奴將有容易損 壞’並縮短其使用壽命之虞者β 因此’右能研發出一種一體成型出之自行車前叉，俾有效減 201038386 少製程與組合之步驟，該自行車前叉整體之結構強度並更佳，當 自行車經常行經於崎敎路面時，亦不隸壞，乃係本發明人所 欲解決之問題所在。 是以，本發明人即有鑑於此，乃思及創作的意念，遂以多年 的_加以設計’經多方探討並試作樣品試驗，及多次修正改良， 乃推出本發明。 【發明内容】 解決問題之技術特點： Ο 本發明之自行車前錄造-體技術，其係依序經過胚料 加熱、-次锻造、半成品再加熱、二次鍛造擠製而可完成自行 車前又之技術，其中，胚料加熱係將金屬胚料加熱至適高溫 度’讓其更容易加工變形，再將該加熱後之轉放入第—成型: 具之模穴内，俾以與自行車前又之前叉肩蓋形狀相同的模穴對胚 料進行熱锻，及該模穴在相對於前又豎管與二油屋内管之位置處 係各再往外形成有一適段之容伸空間，一次鍛造係利用第一成型 模具上、下模之對合’而能將胚料锻造出與模穴相同之形狀，且 因為模穴上還設有相通連之容輕間，故在锻造時，其驻料係& 同步將該容輕間填滿，據以形成—具有延伸段之半成σ，半二 品再加熱健㈣狀核品進㈣加紅_，當加熱 溫度後，再將解成品放人第二成賴具之模穴中，且該模穴在 201038386 相對於前叉豐管與二油壓内管之位置處係各往外貫穿出有一成形 通道，俾以成形通道而能提供外徑小於其内徑之衝頭穿入擠製， 及該成形通道内徑與衝頭外徑間之差距，就是前又賢管與油壓内 管成形出之管壁厚，二次鍛造㈣係利用第二成型模具上、下模 之對合’配合衝頭由外往内穿入成形通道，而能對半成品之延伸 段進行加工，俾將延伸段額外形成出之材料，往成形通道與衝頭 〇間所形成之_擠製，進而—體成型有具前又肩蓋、前又登管與 油壓内管之自行車前叉，郎為前又豎管無_管之管徑大小 或管壁厚薄，可經由成形通道與衝頭之内、外徑調配而改變，故 在加工時，將讓該自行車前又更具可變化性；藉此，係能構成該 自行車前叉锻造一體成型技術者。 對照先前技術之功效： ^ ㈠本發明之自行車前又鍛造一體成型技術，其自行車前叉 上係-體成型有前叉肩蓋、前叉暨管與二油壓内管，故相對不需 要繁靖之螺鎖過程’就能完成製作，讓該自行車前又更符合生產 加工時之經濟效益，該在同業間之競爭上將更具優勢者。 (一)本發明之自行車前又锻造—體成型技術，其前叉肩蓋、 前又豎管與油壓内管係-體成型出，故整體之結構強度係較佳， 當自行車經常行經於崎呕之路面時’該自行車前又將較不易損壞 201038386 【實施方式】 為使貴審查委員對本發明之目的、特徵及功效能夠有更進 一步之瞭解與認識，以下茲請配合【圖式簡單說明】詳述如后： 通常根據本發明’請纟帛-目持續搭配至帛八冑所示觀之， 其係依序_胚料加熱⑴一讀造⑵、半成品再加熱⑶、二 次锻造擠製(4)，而可完成自行車前又(5)之成型技術，其中： 胚料加熱（1)，係將金屬胚料（10)加熱至適高溫度（一般為再 結晶溫度以上，但卻還不足讓胚料1〇熔化之溫度），讓其更容易 加工變形’再將該加熱後之轉⑽放人第—成麵具(2〇)之模 穴(21)内，俾以與自行車前又⑽)之前又肩蓋(61)形狀相同的模 穴(21)對胚料⑽進行練’及該模穴⑼在姆於前叉豎管⑽ 與二油壓内管⑽之位置處係各再往外形成有―適段之容伸空間 (22) ’請同時由第二圖所示觀之； -次锻造⑵’係利用第-成型模具⑽)上、下模之對合，而 能將胚料⑽鍛造出與模穴⑻相同之形狀，且因為模穴(21)上 還設有相通連之容伸空間(22)，故在锻造時，其胚料⑽)係能同 步將該合伸空間（22)填滿，據以形成一具有延伸段⑻之半成品 (30) ’請同時由第三圖所示觀之； 半成品再加熱(3)，係將取出後之半成品(3〇)進行再加熱之步 驟’當加熱至預定溫度後’再將該半成品⑽)放人第二成型模具 201038386 (40)之U41)中’且該模穴⑷)在相對於前叉豎管⑽與二油 壓内管(63)之位置處係各往外貫穿出有一成形通道⑽，俾以成 形通道(42)而能提供外徑小於其内徑之衝頭(5〇)穿入擠製，及該 成形通道⑽隨與_⑽外㈣之差距，就是前叉豎管⑽ 與油壓内管⑽成形出之管壁厚，削時由第四圖所示觀之； 二次鍛造擠製⑷，係利用第二成型模具⑽上、下模之對 〇合’ S己合衝頭⑽)由外往内穿人成形通道(42)，而能對半成品⑽ 之延伸段(31)進行加工，俾將延伸段⑶)額外形成出之材料，往 成形通道(42)與衝頭⑽）間所形成之間隙擠製，進而—體成型有 具前叉肩蓋（61)、前又賢管⑽與油壓内管⑽)之自行車前又 (60)，且因為前又豎管（62)與油壓内管（63)之管徑大小或管壁厚 薄，可經由成形通道(42)與衝頭（5〇)之内、外徑調配而改變，故 在加工時，將賴自行車前又⑽更具可變化性，制時由第五 ❹ 圖、第六圖及第七圖所示觀之； 完成自行車前又(5)，當第二成型模具(40)開模，即能將自行 車則又(60)取出（請同時由第八圖所示觀之），俾在二油壓内管(63) 外各再套設有一油壓外管，據以完成該成型技術者。 藉由上述自行車前又鍛造一體成型技術具有下列之優點：（一) 其自行車前又(60)上係一體成型有前叉肩蓋(61)、前叉豎管（62) 與二油整内管(63)，故相對不需要繁靖之螺鎖過程，就能完成製 201038386 作’讓該自行車前叉(60)更符合生產加工時之經濟效益，該在同 業間之競爭上將更具優勢者；（二)其前叉肩蓋(61)、前又豎管（62) 與油壓内管（63)係一體成型出，故整體之結構強度係較佳，當自 行車經常行經於崎嶇之路面時，該自行車前又(6〇)將較不易損壞 者。 唯以上所述者，僅為本發明之一較佳實施例而已，當不能以 之限定本發明實狀顧；即大驗轉日种請專娜騎作之 均等變化與修飾，皆應仍屬本創作專利涵蓋之範圍内。 201038386 【圖式簡單說明】 第一圖：係本發明之方塊流程圖。 第二圖：係本發明胚料放入於第一成型模具内之狀態圖。 第三圖：係本發明完成半成品之狀態圖。 第四圖：係本發明半成品放入於第二成型模具内之狀態圖。 第五圖：係本發明衝頭穿入於成形通道内之狀態圖。 〇 第六圖：係本發明進行第二次鍛造擠製之狀態圖。 第七圖：係本發明擠製完成之狀態圖。 第八圖：係本發明完成自行車前叉之狀態圖。 第九圖：係習知自行車前又之立體分解圖。 【主要元件符號說明】 本發明部份： 一次鍛造----（2) 二次鍛造擠製--（4) 模穴------（21) 延伸段----一（31) 模穴-------（41) 胚料加熱----（1) 〇 半成品再加熱--（3) 完成自行車前又一（5) 胚料------（10) 第一成型模具一一（20) 容伸空間----（22) 半成品-----（30) 第一成型模具--（40) 9 201038386 成形通道----（42) 衝頭------（50) 自行車前叉—— -(60) 前叉肩蓋-- ——(61) 前叉豎管--- -(62) 油壓内管-- ——(63) 習知部份： 前叉肩蓋--- -(70) 鎖結孔 (701) 前叉豎管----（71) 0 鎖結孔-----（702) 油壓内管----（72)201038386 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a "forging technology for bicycle front fork forging", in particular, a front fork shoulder cover, a front fork vertical pipe, and a hydraulic inner pipe can be integrally formed Out of the bicycle front fork, 俾 effectively increases its overall strength, and reduces its process. [Prior Art] 〇 Press the current conventional bicycle front fork, as shown in the ninth figure, which includes: a front fork shoulder cover (70), a front vertical tube (71) and two hydraulic inner tubes (72), wherein the front fork shoulder cover (70), the front fork vertical pipe (71) and the oil pressure inner pipe (72) are separately formed, and the front and the shoulder cover (70) are above the center and the lower side There is a locking hole (7〇1) (7〇2) which can be inserted into the front fork vertical pipe (71) and the oil pressure inner pipe (72), so that the screw is inserted after the screw is inserted, so that the front fork shoulder The cover (70), the front return pipe (71) and the oil pressure inner pipe (72) can be combined together, and the oil pressure outer pipe is also disposed outside the two oil pressure inner pipe (10), thereby forming a bicycle front cross. However, because the front shoulder cover (7〇), the front fork standpipe (71) and the oil pressure inner pipe (10) need to be separately formed and then combined again, the production will be more complicated and time consuming, and not conformable. The economic benefits and the need to combine the bicycle front forks, the overall structural strength will be poor 'when the wheel is often on the road, the slave will have easy to damage 'and shorten its service life β so ' Right can develop a bicycle fork that is integrally formed, which can effectively reduce the steps of 201038386 with less process and combination. The overall structural strength of the bicycle front fork is better. When the bicycle often passes through the rough road, it is not bad. It is the problem that the inventors want to solve. Therefore, the inventors of the present invention have invented the present invention in view of the above, and the idea of creation and creation, which has been designed and tested for many years, and has been tested and tested several times. [Disclosed] Technical features of the problem: Ο The bicycle pre-recording-body technology of the invention is sequentially completed by the billet heating, the secondary forging, the semi-finished product reheating, the second forging extrusion, and the bicycle can be completed before the bicycle The technology in which the billet heating system heats the metal billet to a suitable temperature to make it easier to process and deform, and then put the heated turn into the first molding: in the mold cavity, and before the bicycle The former die shoulder cover has the same shape of the cavity to hot forge the blank, and the cavity is formed at a position relative to the front vertical pipe and the second oil house inner pipe to form a suitable space for one section, one forging The utility model can forge the blank material into the same shape as the cavity by utilizing the combination of the upper and lower molds of the first molding die, and because the cavity is also provided with a light-filled space, when it is forged, it is stationed. The system & synchronously fills the volume between the light and the light, according to which it is formed—the half of the extended section is σ, and the half of the second product is reheated (four) shaped into the core (four) plus red _, when the temperature is heated, the finished product is finished. Putting the second into the mold hole, and the cavity is in 201 038386 is formed with a forming passageway at a position relative to the front fork and the second oil pressure inner tube, and the forming passage can provide a punch penetration extrusion having an outer diameter smaller than the inner diameter thereof, and the forming passage The difference between the inner diameter and the outer diameter of the punch is the thickness of the tube wall formed by the former and the hydraulic inner tube, and the second forging (four) is the combination of the upper and lower molds of the second molding die. The outer passage penetrates into the forming passage, and the extension of the semi-finished product can be processed, and the additional material formed by the extension is formed, and the formed passage and the punch are formed, and then the body is formed. The front fork and the front fork of the hydraulic inner tube are also used. Change, so when the processing, the bicycle will be more variability in front; thereby, it can constitute the bicycle fork forging integrated molding technology. Compared with the effects of the prior art: ^ (1) The bicycle front forging and integral forming technology of the invention has a front fork shoulder cover, a front fork cum tube and a two oil pressure inner tube on the bicycle front fork, so relatively no need for complicated The Jingzhi screw lock process can be completed, so that the bicycle is more in line with the economic benefits of production and processing, and it will be more advantageous in the competition between the industry. (1) The bicycle front forging and body forming technology of the present invention has a front fork shoulder cover, a front vertical pipe and a hydraulic inner pipe system-body formed, so that the overall structural strength is better, when the bicycle often goes through When the road is vomiting, 'the bicycle will be less susceptible to damage before 201038386. [Embodiment] In order to enable the review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please follow the following [simplified description] 】Detailed as follows: Usually according to the invention 'Please 纟帛- 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目 目System (4), and before the bicycle (5) molding technology, wherein: the billet heating (1), the metal billet (10) is heated to a moderate temperature (generally above the recrystallization temperature, but It is not enough for the temperature of the billet to melt, so that it is easier to process the deformation. Then put the heated turn (10) into the mold hole (21) of the mask (2〇), and the bicycle Before (10)) before the shoulder cover (61) the same shape of the cavity (21) on the embryo (10) Carrying out the practice and 'the cavity (9) at the position of the front fork vertical pipe (10) and the two oil pressure inner pipe (10), and then forming a space for the appropriate section (22) 'Please also be the second figure As shown, the secondary forging (2)' utilizes the first and second molds (10) to join the upper and lower molds, and the blank (10) can be forged into the same shape as the cavity (8), and because of the cavity (21) There is also a joint space (22), so that in the forging, the billet (10) can simultaneously fill the joint space (22), thereby forming a semi-finished product (30) having an extension (8). 'Please observe the same as shown in the third figure; reheat the semi-finished product (3), the step of reheating the removed semi-finished product (3〇), 'after heating to the predetermined temperature', then release the semi-finished product (10) In the U41) of the second molding die 201038386 (40), and the cavity (4) is formed with a forming passage (10) at a position relative to the front fork vertical pipe (10) and the two oil pressure inner pipe (63), With the forming passage (42), it is possible to provide a punch (5 inch) having an outer diameter smaller than the inner diameter thereof, and the gap between the forming passage (10) and the outer circumference (4) is the front The vertical tube (10) and the oil pressure inner tube (10) are formed by the wall thickness of the tube, and the cutting is observed as shown in the fourth figure; the second forging extrusion (4) is performed by using the second molding die (10) for the upper and lower molds. The S-joint punch (10)) is formed by a person forming a passage (42) from the outside to the inside, and is capable of processing the extension (31) of the semi-finished product (10), and additionally forming the material of the extension (3)) into the forming passage (42) ) and the gap formed between the punch (10)) is extruded, and then the body is formed with a front fork shoulder cover (61), a front fork (10) and a hydraulic inner tube (10), and the front of the bicycle (60), and because The diameter of the front vertical pipe (62) and the oil pressure inner pipe (63) or the thickness of the pipe wall can be changed by the inner and outer diameters of the forming passage (42) and the punch (5 〇), so that it is processed. At the time, the bicycle (10) is more variability, and the system is viewed from the fifth, sixth and seventh diagrams; before the bicycle is completed (5), when the second molding die (40) When the mold is opened, the bicycle can be taken out again (60) (please view it as shown in the eighth figure), and a hydraulic outer tube is placed outside the two oil pressure inner tubes (63). The molding Surgeon. The above-mentioned bicycle front forging and integral forming technology has the following advantages: (1) The front fork shoulder cover (61), the front fork vertical pipe (62) and the two oil inner parts are integrally formed on the bicycle front (60). Tube (63), so it is relatively unnecessary to use the screw-locking process of the complex, and the system can be completed 201038386 to make the bicycle fork (60) more in line with the economic benefits of production and processing, which will have more advantages in the competition between the industry. (2) The front fork shoulder cover (61), the front vertical pipe (62) and the oil pressure inner pipe (63) are integrally formed, so the overall structural strength is better, when the bicycle often passes through the rugged On the road surface, the bicycle (6 inches) will be less likely to be damaged. Only the above description is only a preferred embodiment of the present invention, and the actual situation of the present invention cannot be limited thereto; that is, the equal change and modification of the special test day, the This creative patent covers the scope. 201038386 [Simple description of the drawings] The first figure is a block flow chart of the present invention. Second drawing: a state diagram in which the blank of the present invention is placed in a first molding die. The third figure is a state diagram of the semi-finished product completed by the present invention. Fig. 4 is a view showing a state in which the semi-finished product of the present invention is placed in a second molding die. Fig. 5 is a view showing the state in which the punch of the present invention is inserted into the forming passage.第六 Fig. 6 is a state diagram of the second forging extrusion of the present invention. Figure 7 is a state diagram of the completion of the extrusion of the present invention. Figure 8 is a diagram showing the state of the bicycle front fork of the present invention. The ninth picture: is a three-dimensional exploded view of the conventional bicycle. [Main component symbol description] Part of the invention: One-time forging----(2) Secondary forging extrusion--(4) Moulding point ------(21) Extension section----一(31 ) Cavity ------- (41) Heating of the billet----(1) Reheating of the semi-finished product--(3) Completing the bicycle before (5) Binding material ------(10 First molding die one by one (20) tolerance space ---- (22) semi-finished product ----- (30) first molding die --(40) 9 201038386 forming channel----(42) Head ------(50) Bicycle front fork——-(60) Front fork shoulder cover-- ——(61) Front fork standpipe----(62) Oil pressure inner tube-- ——( 63) Conventional part: Front fork shoulder cover----(70) Locking hole (701) Front fork standpipe----(71) 0 Locking hole-----(702) In oil pressure Tube----(72)