五、發明說明（1) 、 本發明係有關一種一字溝槽無頭 成型方法，特別是指一種能有效提升 ’並可節省成本的一字溝槽無頭固定 方法。 ^ 習知的一字溝槽無頭固定螺絲之 S之初胚’利用切割的方式進行施力 $式4係利用攻牙機進行攻牙後再利用 力溝’但此種加工方式會造成毛邊及 f造成牙部之損傷，而切削刀具的磨 增加：因此無法有效提升產品的品質 本案發明人從事螺絲之設計研發 具有豐富的學識素養及熟練之技巧 ’習知之一字溝槽無頭固定螺絲之加 、、點’且產品品質也有待加強，有 遂針對以上缺失進行研究改良，本著 斷地研九思考並歷經多次測試，終於 即’本發明之主要目的，乃是提 f效率及外觀平整，並可節省成本的 鮮、之冷鍛沖壓成型方法。 依據上述之目的，本發明主要係 、法，將線材分段利用沖壓模進行沖 J行攻牙程序，使其逹到有效提升生 法可節省成本的一字溝槽無頭固定螺 固定螺絲之冷鍛沖麼 生產效率及外觀平整 螺絲之冷鍛沖壓成型 加工方式 溝的加工 刀具將頂 施力溝周 損也會造 且會導致 工作已有 ，經由前 工方式仍 鑒於此， 精益求精 完成本發 供一種能 一字溝槽 係將沖壓成 ，此種加工 部切削出施 圍不整，且 成生產成本 成本增加。 多年的時間 述分析可知 有極需改進 本案發明人 的精神，不 明之設計。 有效提升生 無頭固定螺 利用多段沖壓成型的 壓成型製成初胚，再 產效率及外觀平整， 絲之冷鍛沖壓成型方V. Description of the invention (1) The present invention relates to a headless molding method for a straight groove, particularly to a headless fixing method for a straight groove which can effectively improve the cost of the groove. ^ The original S embryo of the conventional slotted headless set screw 'uses cutting force to perform $ type 4 system uses tapping machine for tapping and then uses force groove', but this processing method will cause burrs And f cause damage to the teeth, and the grinding of the cutting tool increases: so the quality of the product cannot be effectively improved. The inventor of this case is engaged in the design and development of screws and has a wealth of knowledge and skills. Add, add, and product quality needs to be strengthened. Therefore, we have researched and improved the above-mentioned shortcomings. Based on the study of nine points and after many tests, we finally said that the main purpose of the present invention is to improve efficiency and Fresh and cold forging forming method with flat appearance and cost saving. According to the above purpose, the present invention mainly relates to a method for punching J-wires by using a stamping die in sections, so that it can be used to effectively reduce the cost of the slotted headless fixing screw that can save costs. Cold forging punch production efficiency and appearance of the flat forging screw cold forging stamping processing method groove processing tool will also force the perimeter of the groove and will cause the work to be done, the former method is still in view of this, and strive to complete the present A groove can be formed by punching, and the machining section cuts out uneven surroundings, and the production cost and cost increase. The analysis over many years shows that there is a great need to improve the spirit of the inventor in this case, and the design is unknown. Effectively promote the production of raw headless fixed screws. Multi-stage stamping forming is used to form the initial embryo, and the production efficiency and appearance are flat.
第4頁 五、發明說明（2) 型方Ϊ是：本發明之一字溝槽無頭固定螺絲之冷鍛沖屋成 ϊίί型ί=多段沖麼成型的方法，將施力溝直接 成型，其包含有下列步驟： 模具ΐ — ^ :將切削完成的線材1用夹具送入第-組 ΐίΓ ::2形沖頭對線材進行沖禮，使線材外表成 翌干整，並夺底部略成導角； 中，將沖壓過的初胚利用夹具送入第二組模具 ’且底部之導角完全成型； 更加成里十鳘 後逆m:將沖屋過的初胚利用夹具將其翻轉180。 模具中，再藉由矩形沖頭進行沖f ,使該初 $亦形成導角’且在頂端形成有凹溝之態樣； ^四，驟：將沖壓過的初胚利用夹具再翻轉18〇9後 模具中，並藉由錐形沖頭進行沖壓，使初胚凹 溝邊緣經沖壓形成導角； 入楚步驟：將沖壓過的初胚利用夹具翻轉180。後送 =汲模具中，並藉由矩形沖頭進行沖壓，使初胚凹溝 將該及凹溝内部更加平整後製成胚料，再使用夾具 序，"0并ί入出ί口，再使用攻牙機進行攻牙之再加工程 疋成一字溝槽無頭固定螺絲之製作； ， 十各明主要係利用沖麼#方式完成胚料凹溝的成形， ?亦心=刀具進行切割作業，不僅節省加工步驟 舍來杰主^造成本，而製成之成品表面平整，施力溝也不 、且確實達到平整，因此本發明係為可有效提升Page 4 V. Description of the invention (2) The square square is: the cold forging punching house forming a slotted headless set screw of the present invention is a multi-stage punching method, which directly shapes the force channel. It includes the following steps: Die ΐ — ^: Feed the cut wire 1 into the -group 用 Γ: 2: 2 punch with a jig to punch the wire, so that the appearance of the wire becomes dry, and the bottom is slightly Leading angle; In, the punched primary embryo is sent to the second set of molds using a clamp and the bottom corner is completely formed; more than ten miles after the inverse m: Turn the punched primary embryo through the clamp and turn it 180 . In the mold, a rectangular punch is used to punch f, so that the initial $ also forms a lead angle, and a groove is formed at the top; ^ Fourth, step: The stamped primary embryo is turned over again by a clamp. 18 In the post-9 die, the tapered punch is used to punch, so that the edge of the groove of the primary embryo is punched to form a lead angle. Steps for entering: Turn the punched primary embryo 180 using a clamp. Evacuation = draw in the mold, and use rectangular punches to punch, so that the initial embryo groove is more flat and the inside of the groove is made into a blank, and then use the clamp sequence, "0 and ί in and out, and then Use a tapping machine to perform the tapping and adding process to make a slotted headless fixing screw; Shigeming mainly uses the punch # method to complete the forming of the grooves of the blank,? Not only does it save processing steps, but the cost of the finished product is flat, the surface of the finished product is flat, the force groove is not flat, and it is indeed flat, so the present invention can effectively improve
第5頁 492896 五、發明說明（3) __ 生產效率及外觀平整，並可節省 螺絲之冷鍛沖壓成型方法。 叼子溝槽無頭固定 為對於本發明之目的、功 確的瞭解，茲舉較祛螯始"：構造特徵，有更詳盡明 舉較佳實施例並配合囷示說明如后： :參閱第一囷及第二囷所示，其係為本發 程不意囷及製程立想示意囷。 之氩造/瓜 :圖’本發明主要係利用多段沖磨 成成im,其包含有下列步驟·· 的方法裝 第一步驟；將線材丄切斷成所須之一 線材1送入第一組模具2 "，第 ：：，長’再將 槽之態樣，其底部具有略呈斜度之導角1為圓筒凹< 形沖頭2 2對第一組模具Π，再利用整 呈導角之平整圓柱態樣，藉以形 具3ΪΪ步:階段之初胚23送入第二組模 具有呈斜择夕道名模八3 1係為圓筒凹槽之態樣，其底部 斜度之導角3 1 1 ，再利用錐形沖頭3 2對第—组 模具31中之初麻〜广頌/對第一組 型為—端1導角#_^^ 使初胚23因沖麼而成 H ^ ^ ^ 端具下凹之圓錐槽的平整圓柱態樣， 藉以形成第二階段之初胚33; ^ 送入’將完成第二階段之知庇3 3,翻轉180。後 離樣，如具4 1中’第二組模具4 1係為圓筒凹槽之 ^ 2對第：:ί有呈斜度t導角4 1 1，再利用矩形沖頭 、一、 具4 1進行沖壓，使初胚3 3因沖壓而成 第6頁 五、發明說明（4) 型為下凹圓錐槽之一端具有導角，而 3 1之圓柱態樣，藉以形成第三階段之初：=有：溝土 階段係利用沖遷方式形成凹溝，沖頭之 =3，=於本 冲頭可設計成圓角，藉以避免產生崩角之大 ：： 亦可視產品需求而設計成直角； 以，而該沖頭 第四步將完成第三階段之初胚 送入第四組模具5 !中，第四 K翻轉180後 5 於凹溝4 31兩侧且具斜度之凸出體 4 3推-、_形冲頭5 2對第四組模具5 1中之初胚 -使初胚43因沖壓而成型為下凹圓錐槽之 碼更馮平整，另一端為兩側形成有導角之凹样 藉以形成第四階段之初胚5 3 ; 、、第五步驟；將完成第四階段之初胚5 3翻轉180 ^後 f入第五組模具6 1中，第五組模具6 1係為圓筒凹槽之 態樣，其底部具有呈斜度之導角6 i i ，再利用矩形^頭 β 2對第五組模具6 1中之初胚5 3進行沖壓，使勒胚5 3因沖壓而成型為下凹圓錐槽之一端之導角更平整，另一 端形成的凹溝4 3 1更加平整，且第四階段形成導角所產 生的毛邊或不整之處，皆能利用矩形沖頭6 2將其沖壓平 整，藉以形成第五階段之胚料6 3 ; ， 在完成胚料6 3後，再利用攻牙機對胚料6 3進行攻 牙’即可完成一字溝槽無頭固定嫘絲之製作；另，有關上 述之第二步驟所使用之錐形沖頭3 2和第二組模具3 1及 第四步称所使用之錐形沖頭5 2和模具5 1，皆可依成品Page 5 492896 V. Description of the invention (3) __ Production efficiency and appearance are flat, and the method of cold forging stamping of screws can be saved. For the understanding of the purpose and function of the present invention, it is better to understand the purpose and function of the invention. The structural characteristics, there are more detailed and preferred embodiments, and the description is as follows: See: As shown in the first step and the second step, it is the intention of the departure process and the process to make a signal. The argon making / melon: Figure 'The present invention is mainly the use of multi-stage milling into im, which contains the following steps ... The method is installed in the first step; the wire is cut into one of the required wires 1 and sent to the first Group mold 2 ", No.:, 'Long' shape of the groove, the bottom of which has a slightly inclined lead angle 1 is a cylindrical concave < shaped punch 2 2 pairs of the first group of molds, reuse The shape of the flat cylinder with a leading angle is 3 steps. The first stage embryo 23 is sent to the second group of molds. It has the shape of an oblique selection. The leading angle of the degree is 3 1 1, and then the tapered punch 3 2 is used to pair the first anesthesia in the first group of molds 31 ~ Guang Song / pair of the first group type is-the end 1 lead angle # _ ^^ make the embryo 23 The red cylindrical shape of H ^ ^ ^ with a concave cone groove at the end is formed to form the initial embryo 33 of the second stage; ^ Send 'to complete the knowledge of the second stage 3 3, flip 180. After leaving the sample, for example, the second group of molds 4 1 in the 4 1 series is a cylindrical groove ^ 2 pairs: :: There is a slope t lead angle 4 1 1 and then a rectangular punch, a tool 4 1 is punched so that the primary embryo 3 3 is punched. Page 6 V. Description of the invention (4) The type is a concave cone groove with a leading angle at one end, and the cylindrical shape of 3 1 is used to form the third stage. At the beginning: = Yes: The ditching phase is to form recesses by rushing. The punch = 3, = the punch can be designed to be a rounded corner, so as to avoid the collapse of the corner :: It can also be designed according to product requirements At right angles, the fourth step of the punch is to send the initial embryo that has completed the third stage into the fourth group of molds 5! After the fourth K is turned 180, 5 is on both sides of the groove 4 31 and has a sloped protrusion Body 4 3 push-, _-shaped punch 5 2 pairs of primary embryos in the fourth group of molds 5-the primary embryo 43 is formed into a concave cone groove by stamping, and the other end is formed on both sides The concave pattern of the lead angle is used to form the initial embryo 5 3 of the fourth stage; and, the fifth step; the initial embryo 5 3 that completes the fourth stage is reversed 180 ^ and f is inserted into the fifth group of molds 61 and the fifth group of molds 6 1 series is The shape of the cylinder groove has a sloped lead angle 6 ii at the bottom, and then the rectangular embryo 5 2 is used to punch the primary embryo 5 3 in the fifth group of molds 6 1, so that the embryo 5 3 is punched. The lead angle formed at one end of the recessed conical groove is flatter, and the groove 4 3 1 formed at the other end is flatter, and the burr or irregularity caused by the lead angle formed in the fourth stage can use a rectangular punch 6 2 It is stamped and flattened to form the blank material 63 of the fifth stage; after the blank material 63 is completed, the tapping machine is used to tap the blank material 63 to complete the slotless headless fixing. The production of silk; In addition, the conical punch 3 2 and the second set of molds 3 1 used in the second step and the conical punch 5 2 and the mold 51 used in the fourth step can be used according to Finished product
492896492896
凹態樣之沖頭及底部具有平整 成底部為平整或底部具圓錐凸 之需要，更換其他平頭或内 或下凹圓錐之模具，藉以製 體之無頭固定螺絲； 係為本發明之製程夹具作動示 請參閱第三圖所示，其 意圖。 =所示，本發明所使用之夹具71係可將初胚23 直接夾持並由第一組模具2 i直線送至第二組模具3工， 藉以達到移動初胚2 3之目的；當進入第二階段時可利用 夹具7 2夾持初胚3 3後利用旋轉的方式將初胚3 3由第 二組模具3 1送至第三組模具4 1，藉以達到翻轉移動初 胚3 3之目的；且可在模具底部形成一貫穿孔，並在底部 外側設置推出棒體，藉以利用推出棒體由貫穿孔將初胚推 出，再由夾具進行夾持移動。 依據上述可知本發明具備有下列優點： 1 ·本發明可直接利用沖壓成形，加工生產速度快，故可 提南生產效率。 2 ·本發明無須使用切削刀具，故不必設置切削機台及負 擔切削刀具損耗的成本。 3 ·本發明所製造之一字溝槽無頭固定螺絲，係具有平整 的凹溝表面，可確實達到平整美觀。 以上所述，本發明在同類產品中實具有極佳之進步實 用性’同時遍查國内外關於此類之技術資料、文獻中亦未 發現有相同的技術存在在先，應已符合「新穎性」、「合 於產業利用性」及「進步性」的專利要件；且從未見雷同The punch and bottom of the concave state need to be flattened to a flat bottom or a conical bottom. Replace other flat or inner or concave conical molds to use the headless fixing screws of the body; this is the process fixture of the present invention Please refer to the third figure for the operation instructions. = As shown, the clamp 71 used in the present invention can directly clamp the primary embryo 23 and directly send it from the first group of molds 2 i to the second group of molds 3 to achieve the purpose of moving the primary embryo 23; when entering In the second stage, the original embryo 3 3 can be clamped by the clamp 7 2 and the original embryo 3 3 can be sent from the second group of molds 3 1 to the third group of molds 41 by rotation to achieve the inversion and movement of the original embryo 3 3. Purpose; and a through hole can be formed at the bottom of the mold, and a push rod body can be set outside the bottom, so that the primary embryo can be pushed out of the through hole by the push rod body, and then clamped and moved by the clamp. According to the above, it can be known that the present invention has the following advantages: 1. The present invention can directly use stamping and forming, and the processing speed is fast, so that the production efficiency in the South can be improved. 2 · The invention does not require the use of cutting tools, so there is no need to set up a cutting machine and bear the cost of cutting tool wear. 3. The slotted headless fixing screw made by the present invention has a flat groove surface, which can surely achieve a smooth and beautiful appearance. As mentioned above, the present invention has excellent progress and practicality among similar products. At the same time, it has traversed domestic and foreign technical information on this type, and the same technology has not been found in the literature. It should have met the "newness" "," Suitable for industrial use "and" progressive "patent requirements; and have never seen similarities
五、發明說明（6) 近似：物品揭露於市，差依專利法之規。 唯，以上所述僅係本發明 凡應用本發明說明及申請 而已，故舉 理應包含在本發明之“=圍所為之等效結構變化’ 以下是本發明之簡單囷示說明： 第一囷‘為本發明之製造流程示意圖。 第=圖係為本發明之製程立體示意圖。 第三囷係為本發明之製程夾具作動示意囷。 王要元件編號： 線材1、第一組模具21、斜度211、 整形沖頭22、第一階段初胚23 ; Ϊ二組模具3 1、導角3 1 1、錐形沖頭3 2、 第二階段初胚33; 1、導角4 1 1、矩形沖頭4 2、 凹溝431、第三階段初胚43; ，四組模具5 i、凸出體5 !丄、錐形沖頭5 2、 第四階段初胚53; =五組模具61、導角㈠工、矩形沖 第五階段胚料6 3 ; 夾具 7 1 ( 7 2 ) 。 *V. Description of the invention (6) Approximation: The item is disclosed in the market, which is subject to the regulations of the Patent Law. However, the above description is only for the application and description of the present invention. Therefore, it should be included in the present invention "= equivalent structure changes" The following is a simple description of the present invention: It is a schematic diagram of the manufacturing process of the present invention. The third figure is a three-dimensional schematic diagram of the manufacturing process of the present invention. The third is a schematic diagram of the operation of the manufacturing fixture of the present invention. The main component number: wire 1, the first group of molds 21, the slope 211. Shaping punch 22, first stage pre-embryo 23; Ϊ two sets of molds 3 1. Lead angle 3 1 1. Conical punch 3 2. Second stage pre-embryo 33; 1. Lead angle 4 1 1. Rectangular Punches 4 2. Concave grooves 431, third stage embryos 43; four sets of dies 5i, protrusions 5! 丄, tapered punches 5 2. Fourth stage embryos 53; = five groups of dies 61, Leading corner masonry, rectangular blank fifth stage blank 6 3; fixture 7 1 (7 2). *