1263549 ··—— 五、發明說明（l) 【發明所屬之技術領域』 傳動it:::::::，"1燒軟化銘料第-次鍛麼成形為 。 連π之第二次鍛壓成形傳動軸粗胚之製法 【先前技術】 目别的車輛傳動車並 在-長形中段軸桿9乂 ：遍構把為如弟5圖所示，其主要 樞接頭功能為供做萬上：端各：一枢接頭9 2、9 3，兩 碩外形均顯得大於令 f而求’兩樞接 轴製造方式為將兩框接頭；桿= 統 :樞接頭接合至中段轴桿兩#，接合；式;乍’而後再將( ，無論如#，這樣的製程在生產效焊^以 加以改唇，況且，目前較^的車輛 f卞上亚不易再 傳動軸亦不例外，然而據所知，二疋朝向輕量化， 朝輕量化目標，但製程 ^ ^呂質傳動軸固然可 遂做法上係先鍛壓成傳Si:銘： 成中空，因此大量鋁料的指 士後再將傳動輛軸心鑽 作成本構成極大牽綷。、 耗％的輛心鑽孔工作對製 【發明内容】 ⑽ΪΓ月之主要目的’在於解決上述的門韻“ · 種紹質傳動轴粗胚鍛塑成形 碭而提供一種 壓作^製得具備兩樞接頭以及二ΐ、!；：完成锻 為達雨述目_，本發明係包括下列步工之傳動軸。 “）將預燒軟化之銘料置於'經預熱之成形·1263549 ··—— V. Description of invention (l) [Technical field to which the invention belongs] Transmission it:::::::,"1 The first-time forging is formed. The method of making the second rough forging drive shaft coarse embryo of π [Prior Art] The vehicle drive car of the other is in the middle of the long-axis shaft 9: the traverse is as shown in Figure 5, the main pivot joint The function is for the top: each end: a pivot joint 9 2, 9 3, both of which are larger than the order of the f and the 'two pivot joints are made by the two-frame joint; rod = system: the joint is joined to The middle shaft is two #, joint; type; 乍 ' and then (, such as #, such a process in the production of welding to change the lips, and, at present, the vehicle is not easy to drive the shaft It is no exception, however, as far as we know, the second 疋 is lighter and lighter towards the goal of lighter weight, but the process ^ ^ 鲁 质 传动 传动 传动 固 固 固 固 固 固 固 固 固 固 固 固 固 固 固 : : : : : : : : : : : : : : : : After the war, the shaft of the transmission shaft is greatly reduced. The consumption of the core drilling work is based on the invention [10] The main purpose of the month is to solve the above-mentioned door rhyme. The rough blank forging and forming the crucible provides a press for the production of two joints and two ΐ, !;: Complete forging For the rain, _, the present invention includes the following step drive shaft. ") The pre-burning softening is placed in the 'preheated forming ·
1263549 五、發明說明（2) (b )以一第一沖頭自成形孔外對成形模穴内之鋁料進行 第一次鍛壓，而形成一具兩端樞接頭及較短之中段轴桿之 傳動軸胚體。 (c )移出第一沖頭並於成形模併接一延伸模。 - (d )緊接以一第二沖頭自延伸孔外對成形模成形模穴内 . 之傳動軸胚體進行第二次鍛壓，而藉以使胚體中段軸桿沿 軸向向外延展為預定長度，完成傳動軸成形； 本發明之上述目的與優點，不難從下述所選用實施例之詳 細說明與附圖中獲得深入了解。 當然，本發明在某些步驟上，或步驟之安排上容許有® 所不同，但所選用之實施例，則於本說明書中，予以詳細 說明，並展示於附圖中。 【實施方式】 請參閱第1〜4圖，圖中所示者為本發明所選用之實 施例’此僅供說明之用’在專利申請上並不受此種結構之 限制。 本例如第4圖所示之鋁質傳動軸粗胚5係以一模具組 連續鍛塑成形，其模具組包括：由兩模具1 1 、1 2合模 構成之一成形模1 ，於兩模具之合模侧對稱形成有一成形φ 模穴1 3 ，該成形模穴内端為具符合傳動轴一端之樞接頭 5 1外形之樞接頭成形部1 3 1 ，相鄰内端之樞接頭成形 部1 3 1為符合傳動軸中段軸桿5 2橫切面之直孔1 3 2 ，直孔長度並較短於傳動轴中段轴桿，於直孔1 3 2纟卜端 為同轴延伸之成形孔1 3 3 ，成形孔之横切面為符合傳動1263549 V. INSTRUCTIONS (2) (b) The first forging is performed on the aluminum material in the forming cavity from the outside of the forming hole by a first punch to form a two-end pivot joint and a short middle shaft. Drive shaft embryo body. (c) removing the first punch and joining an extension die to the forming die. - (d) a second forging of the drive shaft body in the forming cavity of the forming die is performed by a second punch from the outside of the extending hole, so that the middle shaft of the embryo body is axially extended to a predetermined position The length, the completion of the drive shaft forming; the above objects and advantages of the present invention are not difficult to understand from the detailed description of the selected embodiments below and the accompanying drawings. Of course, the present invention may be different in some steps, or in the arrangement of steps, but the selected embodiments are described in detail in the present specification and are shown in the drawings. [Embodiment] Please refer to Figs. 1 to 4, which show the embodiment selected for the present invention. This is for illustrative purposes only, and is not limited by such a structure in the patent application. The aluminum drive shaft rough blank 5 shown in FIG. 4 is continuously forged and formed by a mold set, and the mold set comprises: a mold 1 formed by clamping two molds 1 1 and 1 2 to form two molds. The mold clamping side is symmetrically formed with a forming φ cavity 13 , the inner end of the forming cavity is a pivot joint forming portion 1 3 1 having an outer shape conforming to one end of the transmission shaft, and the pivot joint forming portion 1 adjacent to the inner end 3 1 is a straight hole 1 3 2 which conforms to the cross section of the shaft of the middle shaft of the transmission shaft, and the length of the straight hole is shorter than that of the middle shaft of the transmission shaft, and the forming hole 1 is coaxially extended at the end of the straight hole 1 3 2 3 3, the cross section of the forming hole is in accordance with the transmission
第6頁 1263549 五、發明說明（3) 軸另一端之樞接頭5 3徑向外圍輪廓；及 一第一沖頭2 ，其端部為一較直孔孔徑小之沖桿2 1 ，沖桿端部2 1 1並為錐狀而另一端鄰接一樞接頭成形部 2 2 ，樞接頭成形部2 2側圍形式設為提供與成形孔相配 合之圓柱2 3 ，而樞接頭成形部2 2於沖桿側具備成形輪 廓2 2 1 ，成形輪廓為傳動軸於該端之樞接頭5 3外形， 據此，沖桿長度為足夠使其前端深入至成形模直孔1 3 2 與成形孔1 3 3交界之頸部1 3 4相對位置。 一延伸模3具一延伸孔3 1而成為形孔之加長段◦一 第二沖頭4為與沖桿2 1同徑之直長形桿，其端部4 1並I 為錐狀。Page 6 1263549 V. Description of the invention (3) The radial joint of the other end of the shaft 5 3; and a first punch 2, the end of which is a punch 2 1 with a smaller diameter of the straight hole, the punch The end portion 2 1 1 is tapered and the other end is adjacent to a pivot joint forming portion 2 2 , and the pivot joint forming portion 2 2 is provided in a side form to provide a cylinder 2 3 that cooperates with the forming hole, and the pivot joint forming portion 2 2 The punching side is provided with a forming profile 2 2 1 , and the forming profile is the outer shape of the pivot joint of the drive shaft at the end. Accordingly, the length of the punch is sufficient for the front end to penetrate into the straight hole of the forming die 1 3 2 and the forming hole 1 3 3 The neck of the junction 1 3 4 relative position. An extension die 3 has an extension hole 3 1 and is an elongated section of the shape hole. The second punch 4 is a straight elongated rod having the same diameter as the punch 2 1 , and the end portions 4 1 and I are tapered.
第7頁 1263549 五、發明說明（4) 延展之胚體中段向外推移， 由前述製程即可於同一 提昇製程，並且可完成中段 料損耗及後段加工時間。 如此即完成傳動轴成形。 鍛壓設備連續製成，可有效率 軸桿之中空需求，而可節省材 1263549 圖式簡單說明 弟1圖係本發明成形振：之平面剖視圖。 第2圖係本發明於成形模鍛壓銘料形成一傳動軸胚體 示意圖。 第3圖係本發明對成形模内之傳動轴胚體進行第二次 鍛壓示意圖。 意圖 第4圖係本發明製程完成之傳動轴粗胚立體 弟5圖係習知傳動轴結構立體分解不意圖。 【圖號說明】 (習用部分） 中 段轴 桿 9 1 枢 接 頭 9 2 Λ 9 ( 本 發 明 部 分） 成 形模 1 模 具 1 1 1 2 成 形模 穴 1 3 框 接 頭 成 形 部 1 直 孔1 3 2 成 形 孔 1 3 3 頸 部1 3 4 第 •— 沖 頭 2 沖 桿2 1 沖 桿 端 部 2 1 1 枢 接頭 成 形 部 2 2 成 形 輪 廓 2 2 1 圓 柱2 3 延 伸 模 3 延 伸孔 3 1 第 ，— 沖 頭 4 沖 頭端 部 4 1 傳 動 轴 粗 胚 5 傳 動轴 胚 體 5 〇 枢 接 頭 5 1 中 段軸 桿 5 2 樞 接 頭 5 3 «丨Page 7 1263549 V. INSTRUCTIONS (4) The middle section of the extended embryo body is outwardly moved. The above process can be used in the same lifting process, and the middle material loss and the post-processing time can be completed. This completes the drive shaft forming. The forging equipment is continuously made, which can effectively reduce the hollow demand of the shaft, and can save material. 1263549 Brief description of the drawing The first drawing of the invention is a plan sectional view of the forming vibration of the present invention. Fig. 2 is a schematic view showing the formation of a drive shaft body in the forging die of the forming die. Fig. 3 is a schematic view showing the second forging of the drive shaft body in the forming mold according to the present invention. Intent Figure 4 is a perspective view of the drive shaft of the present invention. [Description of the figure] (conventional part) Middle section shaft 9 1 Pivot joint 9 2 Λ 9 (part of the invention) Forming die 1 Mold 1 1 1 2 Forming cavity 1 3 Frame joint forming part 1 Straight hole 1 3 2 Forming hole 1 3 3 Neck 1 3 4 No. – Punch 2 Punch 2 1 Punch end 2 1 1 Pivot joint forming 2 2 Forming profile 2 2 1 Cylinder 2 3 Extension die 3 Extension hole 3 1 Head 4 punch end 4 1 drive shaft rough blank 5 drive shaft blank body 5 arm joint 5 1 middle shaft 5 2 pivot joint 5 3 «丨
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