200924871 九、發明說明： 【發明所屬之技街領域】 本發明係有關於一種蟫 不里释絲製造方法， 種 尾螺絲製造方法。 【先前技術】 參閱圖1及圖2，200924871 IX. Description of the invention: [Technical street field to which the invention pertains] The present invention relates to a method for manufacturing a woven wire, a method for manufacturing a tail screw. [Prior Art] Referring to Figures 1 and 2,
固ζ *知鑽尾螺絲製造方沬！ — A 備料步驟11、成型步驟19 去1包含有 驟141. t 削步驟13及螺牙成型步 ❹ ❹ 驟14·其中，該備料步驟 成土步 之胚料21;另，該成料冑 订備具有一適當長度 nx 乂驟12係將前述該胚料21八 成型有-螺頭22’以及—由該螺頭22 ::別 23’同時並利用一鑽尾成型機(圖中未示出)，=:體 桿體23成型出一鑽尾24。 針對該 仍續前述，該切削步驟13係針對該鑽尾 _ 配合㈣成型機之模具25(圖φ微、 示意表示）進行多-女徐中僅以 夕衝壓切削’以使該桿體23虚鑽届 之間形成一凹槽2β·县& ，、纘尾24 有一搓牙機（圖中未示+ *係倩具 23予以成型出複數螺牙，用該搓牙機針對該桿體 製造。 、化即完成該習知绩尾螺絲之 絲，二吏Τ不尾螺絲製造過程雖能成型出所需之螺 如下：用’不過實際製造上卻有如下缺失，兹詳述 I習知鑽尾螺絲之製造，其係先 型後，里1Μ衝壓成 再進订該凹槽之成型加工，惟，蓉於該凹槽必 4 200924871 須經過該模具多次衝壓方能成型，故造成該衝壓過程 較為不易，使製造過程較為複雜，且該凹槽周緣易呈 不平滑表面，增加後續使用之不便。 2. 仍續前述，當然有部份業者欲採一次衝壓成型方式為 之，經實際測試後發現，除該凹槽成型之尺寸易有所 偏差’影響生產品質外，同時該模具必須使用較大動 力，方能有足夠力量進行衝壓，而於衝壓過程中該模 八承又過大衝擊力’ ^加速該模具損冑，不論對後續 f產速度之進行，或者是機械、模具等費用成本之提 高上，均有一定之影響，實有待改進。 3. 由於該凹槽係經過該模具多次衝壓切削而成，無形當 中該凹槽位置之強度即隨尺寸頸縮而降低，以致影 響後續該螺絲之鎖合作業。 【發明内容】 因此’本發明之目的’是在提供—種鐵尾螺絲製造 方法，其可提升螺絲強度，同時具快速衝壓成型及成本 降低等功效。 於是，本發明鑽尾螺絲製造方法，其包含有備料步 驟、初始步驟、㈣步驟、加工步驟及成型步驟等：其 中’該初始步驟形成有—螺頭及-桿體後，再配合該桿 體予以擠I形成有—頸縮區’以及針該頸縮區進行夹 持與衝慶加jh處理，最後再經成型步驟進行，亦即針對 該頸縮區於加工後呈較大外徑之第二區段處予以直接 衝麼成型出-鑽尾’並且再對該捍體成型出螺牙，即完 5 200924871 成該錢尾m & ’ d該頸縮區係先行經過擠壓而 成，故該胚料受到擠㈣以增強其強度，再加上衝壓加 工後形成之凹槽並非以模具多次衝遷切削而成，故製造 過程較習知要來得簡便，俾使後續作業更為快速與降低 成本之消耗。 【實施方式】 有關本發明之前述及其他技術内容、特點與功 效，在以下配合參考圖式之較佳實施例的詳細說明令， 將可清楚的明白。 參閱圖3、圖4 ’本實施例鑽尾螺絲製造方法3，其 依序包3有備料步驟3卜初始步驟32、播塵步驟^、 2工步驟34及成型步驟35等；其中，該備料步驟μ ==-金屬材質之胚料4。；另，該初始步驟以係 針對該胚料4 〇公沿丨士、并丨 ^ , 〇刀別成型—螺頭41，以及一由該螺頭41 向外延伸之桿體42。 ❿ 於相參閱* 5 ’該擠壓步驟33係將前述該桿體42 43 #二螺頭41方向之一端予以播壓形成一頸縮區 ^吏該頌縮區43之外徑係小於該桿體42之外徑，而 Z縮區^於形成過程t因先行受賴， 細區43位置之廍洚 只 外，該頸縮區43二:有：增加後續鑽鎖之強度’另 43 並區刀有—鄰近該桿體42之第一區段 431及一緊鄰該第一區段431之第二區段m，而 一區段431係為預供後續夹持所在位置。 人 仍續則述’前述該加工步驟34,其備具有一成型機 6 200924871 (圖中未示出），且該成型機具有一固定模組51，以及一 相對該固定模組51之沖模組5 2，而該固定模組5丨先行 緊固夾持該第一區段431，再利用該沖模組52衝壓該第 二區段432，以使該第二區段432外徑D大於該第一區 段431外徑d，而形成圖6所示狀態’至於該第一區段 431位置處則會形成有一凹槽433，且該凹槽433周緣 亦呈一光滑表面；最後該成型步驟35,其係針對該加工 步驟34所衝壓成型具較大直徑D之該第二區段432，予 以冲壓形成一鑽尾44(即如圖7所示），同時該鑽尾44 上設有排屑溝441，且該排屑溝441並與該凹槽433相 連通外，同時更於該桿體42上再輾壓成型出複數螺牙 4 5 ’即完成該鑽尾螺絲製造。 由上述之說明，當可得知本發明於製造方法上確實 具有功效增進之處，歸納如下： 1，本發明鑽尾螺絲之製造，其係針對該桿體上先行擠壓 形成一外徑小於該桿體之頸縮區，再者，針對該頸縮 區之第二區段予以加工作業，以使該第一區段處自然 成型有一凹槽，俾利簡化其製造過程以快速衝壓成型。 2.仍續前述，由於該頸縮區於衝壓過程而自然成型一凹 槽，並非同習知係以該模具採多次衝壓切削而成，故 除該凹槽之強度得以維持外，該凹槽成型後之尺寸亦 較為精準，因而對於後續鎖合作業有正面幫助。 3·同時，該模具係直接針對該頸縮部進行央持與衝壓處 理，使該模具不會因承受過大衝擊力而導致損壞，故 7 200924871 成本之耗費亦較低。 綜上所述，本發明鑽尾螺絲製造方法，1主要利用 該擠壓步驟將該桿體擠壓形成有1度較佳之頸縮 區二而後再配合該加工步驟針對該頸縮區之第二區段進 订衝壓，使其具有一較大外徑’因而該第二區段上可直 接衝壓成型出—鑽尾’並且該桿體上另再成型出螺牙； 是以’製造上確實可增加該螺絲之強度，同時亦可改盖 該錢尾於成型過程易造成該模具耗損之缺失，進而達二 增加生產速度、降低成本等功效。 【圖式簡單說明】 圖1是習知鑽尾螺絲之製造流程圖； 圖2是習知鑽尾螺絲之成型過程示意圖； 圖3是本發明一較佳實施例之鑽尾螺絲製造流程圖； 及 圖4〜圖7是本發明一較佳實施例之鑽尾螺絲成型過程 示意圖。 200924871 【主要元件代表符號說明】 3 鑽尾螺絲製造方法 31 備料步驟 40 胚料 32 初始步驟 41 螺頭 42 桿體 33 擠壓步驟 43 頸縮區 431 、432第一、第二區段 34 加工步驟 51 固定模組 52 沖模組 D 第二區段外徑 d 第一區段外徑 35 成型步驟 44 鑽尾 45 螺牙 Φ 9Solid ζ * Know the manufacturing of the tail screw! — A preparation step 11, molding step 19, step 1 includes a step 141. t-cut step 13 and a thread forming step ❹ step 14· wherein the preparation step is the step 21 of the step; in addition, the material is ordered Having an appropriate length nx step 12 is to form the aforementioned blank 21 - a screw head 22' and - by the screw 22 :: 23' simultaneously and using a tail forming machine (not shown ), =: The body body 23 is formed with a drill tail 24 . For the above, the cutting step 13 is performed on the mold 25 (Fig. φ micro, schematic representation) of the drill-tailing (four) molding machine, so that the rod body 23 is only imaginary. A groove 2β·County& and a appendix 24 are formed between the drills. The appendix 24 has a boring machine (the figure is not shown in the figure), and a plurality of threads are formed, and the boring machine is used to manufacture the rod body. The snail can be formed by the process of manufacturing the second-hand screw. The snail can be formed as follows: but the actual manufacturing has the following defects. In the manufacture, after the first type, the first one is stamped into the forming process of the groove, but the groove is required to be formed by multiple punching of the mold in the groove, and thus the stamping process is relatively It is not easy to make the manufacturing process more complicated, and the periphery of the groove is easy to show an uneven surface, which increases the inconvenience of subsequent use. 2. Continued from the foregoing, of course, some operators want to adopt a stamping forming method, which is found after actual testing. In addition to the size of the groove forming is easy to have The deviation 'influences the production quality, at the same time, the mold must use a large power, in order to have sufficient strength to press, and in the stamping process, the mold has a large impact force. ^ Accelerate the mold damage, regardless of the subsequent production The speed is progressed, or the cost of machinery, molds, etc. has a certain impact, and it needs to be improved. 3. Since the groove is punched and cut through the mold multiple times, the position of the groove is invisible. The strength is reduced with the necking of the size, so as to affect the locking cooperation of the screw. [Invention] Therefore, the object of the present invention is to provide a method for manufacturing an iron tail screw, which can improve the screw strength and at the same time Therefore, the method for manufacturing the tail screw of the present invention comprises a preparation step, an initial step, a (four) step, a processing step, a molding step and the like: wherein the initial step is formed with a screw head and a rod After the body, the rod body is further pressed to form a necking zone and the necking area is clamped and punched and jh processed, and finally The step is carried out, that is, the second section of the necking area which has a larger outer diameter after processing is directly punched out to form a drill-tail and the thread is formed into the body, that is, 5 200924871 In the end of the money m & 'd the necking zone is first extruded, so the billet is squeezed (four) to enhance its strength, plus the groove formed after stamping processing is not multiple times with the mold Since the cutting process is made, the manufacturing process is simpler than usual, so that the subsequent operation is faster and the cost is reduced. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are described below with reference to the drawings. The detailed description of the preferred embodiment of the present invention will be clearly understood. Referring to FIG. 3 and FIG. 4, the manufacturing method 3 of the self-drilling screw of the present embodiment has a preparation step 3, a preparation step 3, an initial step 32, and a dusting. Step 2, 2 step 34, forming step 35, etc.; wherein, the preparation step μ == - metal material blank 4. In addition, the initial step is for the blank 4, along with the gentleman, the 丨 ^ , the boring tool - the screw head 41 , and a rod 42 extending outward from the screw head 41 .挤压 相 * * 5 5 5 5 5 5 5 5 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' The outer diameter of the body 42, and the Z constricted area ^ in the formation process t due to the first reliance, the location of the fine area 43 is only outside, the necking area 43 two: there: increase the strength of the subsequent drilling lock 'other 43 combined The knives have a first section 431 adjacent the shank 42 and a second section m adjacent the first section 431, and a section 431 is pre-supplied for subsequent clamping. The continuation of the processing step 34 described above is provided with a molding machine 6 200924871 (not shown), and the molding machine has a fixing module 51 and a die relative to the fixing module 51. The second section 431 is firstly fastened and clamped by the fixing module 5, and the second section 432 is punched by the punching module 52 so that the outer diameter D of the second section 432 is larger than The outer diameter d of the first section 431 is formed to form a state shown in FIG. 6; a recess 433 is formed at the position of the first section 431, and the periphery of the recess 433 also has a smooth surface; Step 35, which is formed by stamping a second section 432 having a larger diameter D for the processing step 34, and stamping to form a drill tail 44 (ie, as shown in FIG. 7), and the drill tail 44 is provided thereon. The chip ditch 441, and the chip flute 441 is connected to the groove 433, and at the same time, the plurality of screw teeth 45 5 ' are further formed on the rod body 42 to complete the manufacture of the tail screw. From the above description, it can be known that the present invention has an improvement in efficiency in the manufacturing method, and is summarized as follows: 1. The manufacture of the self-drilling screw of the present invention is performed by first pressing on the rod body to form an outer diameter smaller than The necking region of the rod body is further processed for the second section of the necking region so that a groove is naturally formed at the first section, thereby simplifying the manufacturing process for rapid stamping. 2. Continuing the foregoing, since the necking region naturally forms a groove in the stamping process, it is not conventionally known that the die is cut by multiple times, so that the strength of the groove is maintained, the concave The size of the groove after molding is also relatively accurate, which is positive for the subsequent lock cooperation industry. 3. At the same time, the mold directly performs the central and stamping treatment on the neck portion, so that the mold will not be damaged due to excessive impact force, so the cost of the 200924871 is also low. In summary, the method for manufacturing the self-drilling screw of the present invention, 1 mainly uses the pressing step to extrude the rod body to form a necking zone 2 which is preferably 1 degree, and then cooperate with the processing step for the second of the necking zone. The section is stamped so that it has a larger outer diameter 'so that the second section can be directly stamped out of the drill tail' and the threaded body is further shaped with a thread; Increasing the strength of the screw, and also changing the tail of the money in the molding process, the loss of the mold is easily caused, thereby increasing the production speed and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart showing the manufacturing process of a conventional self-drilling screw; FIG. 2 is a schematic view showing a molding process of a conventional self-drilling screw; FIG. 3 is a flow chart of manufacturing a self-drilling screw according to a preferred embodiment of the present invention; 4 to 7 are schematic views showing a molding process of a tail screw according to a preferred embodiment of the present invention. 200924871 [Description of main component representative symbols] 3 Drilling screw manufacturing method 31 Preparation step 40 Binding material 32 Initial step 41 Screw head 42 Rod 33 Extrusion step 43 Necking zone 431, 432 First and second section 34 Processing steps 51 fixed module 52 punch module D second section outer diameter d first section outer diameter 35 molding step 44 drill tail 45 thread Φ 9