M324560 八、新型說明： 【新型所屬之技術領域】 本創作係有關於一種工具機夾頭之技術領域，尤指一種用 於夾頭且具有較佳結構強度之齒輪結構改良。 【先前技術】 按，傳統的工具機（如車床）用夾頭，其結構係如第3圖 與第4圖所示，其於一座體8 χ中樞設一個驅動用之齒輪9， 以及與該齒輪9配合的—齒盤8 2，該齒盤8 2相對於與該齒 輪9配合的-面具有—螺紋8 3，而該座體δ丄中等分滑設數 織爪8 4，各夾爪8 4對應該凸紋8 3設有多數個凸㈣5 。猎此，當使用者以具轉動該齒輪9時能_帶動該齒盤8 2轉 動’而齒盤8 2轉動時則透過螺旋形之凸紋8 3推動夾爪8 4 之凸塊8 5 ’進而帶動各夹爪“向内移以夾 移以放鬆工件。 Τ ^ P而於該_91_彳4 要具有—錐形之㈤ …y 1車乂小徑的一端凸出有一軸 則為-端部9 3,且於該齒部9 2另 j 鳊邛9 3之間則形j %狀之疋位槽9 4，俾藉 該座體8lt，且#端心/ 92與定位槽94輕韵 r 亥鈿部9 3凹設有—太a Ω = 結合帶動該齒輪9轉動。 5以供工具插 前述酱輪9之齒部91# W 3 1 1疋由成型銑刀 M324560 銳削加工而成^，士口楚n ^ ^闲 目_ ° A於成型銑刀7是圓盤形的關 係，口此在銑削加工 ^ n , 0 的過私中所加工出來的齒底9 1 2，該齒 兮IM/U-ci鄉罪端Μ 3之'段形成一圓弧段9 1 3 ’而對應 二:、又13部份之齒911則成為無效齒面。為了要使齒 1有效齒面有足夠的長度，因此齒底9 1 2必需延伸超 過疋位槽9 4而深人到端部9 3，才能讓位於齒部9 i的齒9 11產生足夠的有效長度。 <疋又限於加工方式所形成的此一結構形態，卻使得齒輪 9存在著一些問題。 就齒的結構強度來看，由於齒底912需延伸超過定位槽 9 4因此齒部9 1的各個齒9 1 1均為獨立之結構形態，當 整個夾頭作小型化設計時，便容易因作用力集中在單一的齒9 1 1上，而發生結構強度不足的問題。 而就加工的過程來看，在以成型銑刀進行齒底銑削之前， 需先以車床對原材料加工出離型，而在此一車削的過程大約會 車削掉1/3〜1/2的原材料，造成材料的浪費，也增加了製造的 成本。而以成型銑刀銑削加工的方式，每次進刀只能加工形成 一道齒底9 1 2，而後需以分度器將齒輪9轉動一預定角度才 能再銑削加工出第二道齒底9 1 2。如此的加工方式，其加工 的時間相當長，刀具耗用成本高，相對地也連帶增加了製造成 本。而以分度器轉動齒輪9的過糕中，容易累積形成轉動角度 的誤差，且成型銑刀的磨耗也會造成齒形的誤差，進而影響到 6 M324560 加工完成之齒輪的整體精確度。再者，銑削加工後容易產生毛 邊，而需要再作二次加工，也額外地增加了加工成本。 ' 再就齒輪的加工精度來看，銑削加工後的齒部9 1其表面 一 較為粗糙，而粗链的表面會使得齒輪的轉動摩擦增大，造成使 用上較費力，且容易產生噪音，再者，因成型銑刀加工之齒形 多銳角，甚至會有齒干涉的問題發生，而會縮短了齒輪的使用 壽命。 • 前述之夾頭用齒輪，其結構所產生的各項問題，確實有加 以改進之必要，因此本創作人基於多年的經驗，針對前述的各 項問題，而研發出一種創新之齒輪結構。 【新型内容】 本創作之主要目的，在於解決上述的問題而提供一種各齒 之間由一連結部連結，而能有效提升結構強度之夾頭齒輪結構 鲁改良。 本創作之次一目的，係在於藉由齒輪結構之改良使得本創 作能易於以冷鍛之加工方式加工製造’而能有效降低製造成 本0 為達前述之目的，本創作之齒輪其錐狀之齒部具有多數之 齒，而任兩相鄰之齒之間分別具有一齒底，而該齒部較小徑的 一端凸出有一軸部，另一端則為一端部，且於該齒部與該端部 之間則形成有一環狀之定位槽，而該齒部之各齒於鄰近該定位 7 M324560 槽之一端係由一連結部相互連結，且該連結部係呈環狀之結構 形態。 “ 藉由該齒部之各齒於鄰近該定位槽之一端由連結部相互 ' 連結之結構設計，使得各齒工作時的受力能透過連結部分散其 作用力，進而能達到提升齒輪結構強度之目的。 再者，本創作之齒部的各齒底係由鄰近軸部之一端向端部 之一端延伸且未穿透至該定位槽，而於齒部鄰近定位槽之一端 • 形成連結部，此一結構形態使本創作可用冷鍛加工方式來製 造，而能縮短加工時間、減少加工廢料，以降低製造成本。此 外，以冷鍛方式製成之齒輪其精度較佳、表面較光滑，而能降 低干涉現象、減少噪音，進而達到延長使用壽命之功效。 本創作之上述及其他目的與優點，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，本創作在某些另件上，或另件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 於附圖中展示其構造。 【實施方式】 請參閱第1圖及第2圖，本創作之齒輪1具有一錐形之齒 部1 1，該齒部1 1具有多數之齒1 1 1，而任兩相鄰之齒1 1 1之間分別具有一齒底1 1 2，而該齒部1 1較小徑的一端 凸出有一軸部1 2，另一端則為一端部1 3，且於該齒部1 1 8 M324560 與該端部1 3之間則形成有一環狀之定位槽1 4，另於該端部 1 3中心凹設有一方孔1 5以供工具插置結合來轉動該齒輪。 該齒部11之各齒底112係由鄰近轴部12之一端向 端部1 3之一端延伸，且未穿透至該定位槽1 4，俾於該齒部 1 1鄰近定位槽1 4之一端形成一環狀形態之連結部1 6 ’使 各齒1 1 1鄰近該定位槽1 4之一端由該連結部1 6相互連 結。 本創作之齒輪的結構設計使得本創作之齒輪能便於以冷 鈑之加工方式製造。亦即可預先製成與本創作之齒輪結構相對 =模具2，再將備妥之材料於製備之模具2中冷鍛成型（冷 ，·又力口工屬習知技術，在此不如贅述），如第2圖所示。 6相由於各齒111於鄰近該定位槽14之—端由連結部1 相互連結，因此各齒1 ]] 部16分散其作用力，心二透過連結 加工方式亦有助於齒輪結構強度之提升。& -然冷锻之 再者，使用冷锻加工方式來製造時 加工般產生許多的加工麻 衣私中不會如切削 冷〜需=:，因此能有效降低材料成本。而且 工時間’降低工時成本。 W，因此能縮短加 此外，以冷锻加工方式制 光滑，而能降低齒輪與歯盤倩度較佳且表面較 音’進而達到延長使用壽命之功效。，^並減少工作噪 M324560 綜上，本創作創新之結構設計，確實能提升齒輪之結構強 度，並且降低製造成本、延長使用壽命，其明顯具有新穎性、 ' 進步性及產業利用性，而為一適法之新型。 ^ 以上所述實施例之揭示係用以說明本創作，並非用以限制 本創作，故舉凡數值之變更或等效元件之置換仍應隸屬本創作 之範缚。 由以上詳細說明，可使熟知本項技藝者明瞭本創作的確可 • 達成前述目的，實已符合專利法之規定，爰提出專利申請。 【圖式簡單說明】 第1圖係本創作之外觀圖 第2圖係本創作齒輪之加工狀態示意圖 第3圖係夾頭之外觀圖 第4圖係夾頭之剖視結構示意圖 鲁第5圖係先前技術之齒輪的外觀圖 第6圖係先前技術之齒輪的加工狀態示意圖 【主要元件符號說明】 齒部1 1 齒底1 1 2 端部1 3 方孔1 5 齒輪1 齒1 1 1 軸部1 2 定位槽1 4 M324560M324560 VIII. New description: [New technical field] This creation is related to the technical field of a machine tool chuck, especially a gear structure improvement for a chuck and having better structural strength. [Prior Art] According to the conventional tool machine (such as a lathe), the structure is as shown in Figs. 3 and 4, and a gear 9 for driving is disposed in the center of the body 8 and The gear 9 is fitted with a toothed disc 8 2 having a thread 8 3 with respect to the mating surface of the gear 9 , and the seat body δ 丄 is divided into a plurality of knuckles 8 4 , each jaw 8 4 pairs of embossing 8 3 are provided with a plurality of convex (four) 5 . Hunting, when the user can rotate the gear wheel 9 to rotate the toothed disk 8 2 and the toothed disk 8 2 rotates, the convex piece 8 4 of the clamping jaw 8 4 is pushed through the spiral convex strip 8 3 ' In turn, the jaws are moved "inwardly to move inward to relax the workpiece. Τ ^ P and the _91_彳4 should have a cone (five) ... y 1 乂 乂 的 的 的 的 的 的 凸 凸 凸The end portion 9 3 , and between the tooth portion 9 2 and the other j 鳊邛 9 3 , the j-shaped groove 9 4 is formed, and the seat body 8 lt is used, and the # end center / 92 and the positioning groove 94 are light.韵r 钿 钿 9 9 3 recessed - too a Ω = combined to drive the gear 9 to rotate. 5 for the tool to insert the above-mentioned sauce wheel 9 tooth 91# W 3 1 1 疋 by the forming cutter M324560 sharpening Cheng^,士口楚n ^^闲目_ ° A in the shape of the milling cutter 7 is a disc-shaped relationship, the mouth is in the milling process ^ n, 0 in the private processing of the bottom 9 1 2, the The gingival IM/U-ci sin Μ 3 ' 'section forms a circular arc segment 9 1 3 ' and corresponds to two:, and 13 parts of the tooth 911 become an invalid tooth surface. In order to make the tooth 1 effective tooth surface There is enough length, so the tooth bottom 9 1 2 must extend beyond the position groove 9 4 and deep people The end portion 9 3 can give the teeth 9 11 located in the tooth portion 9 i a sufficient effective length. The 结构 is limited to the structural form formed by the machining method, but causes some problems in the gear 9. In terms of structural strength, since the tooth bottom 912 needs to extend beyond the positioning groove 94, the respective teeth 9 1 1 of the tooth portion 9 1 are independent structural forms, and when the entire chuck is miniaturized, it is easy to concentrate due to the force. On the single tooth 91, there is a problem of insufficient structural strength. As far as the machining process is concerned, before the bottom milling with the forming cutter, the raw material needs to be machined out of the lathe, and here A turning process will turn off 1/3~1/2 of the raw materials, which will result in waste of materials and increase the cost of manufacturing. In the way of milling milling, each feeding can only be processed into one tooth. The bottom 9 1 2, and then the gear 9 is rotated by a predetermined angle by the indexer to mill the second tooth bottom 9 1 2 again. Such a processing method has a long processing time and a high tool cost, relatively Also increased the system Cost, while the indexing device rotates the gear 9 in the cake, it is easy to accumulate the error of forming the rotation angle, and the wear of the forming cutter will also cause the tooth shape error, which in turn affects the overall accuracy of the 6 M324560 processed gear. In the case of milling, burrs are easily generated, and secondary processing is required, which additionally increases the processing cost. 'In terms of the machining accuracy of the gears, the surface of the toothed portion 9 1 after milling is rough. The surface of the thick chain will increase the rotational friction of the gear, resulting in more laborious use and easy noise generation. Moreover, due to the sharp angle of the tooth shape processed by the forming milling cutter, even the problem of tooth interference may occur, and the problem will be shortened. The service life of the gear. • The aforementioned problems with the structure of the gears for the chucks are indeed necessary for improvement. Therefore, based on years of experience, the creator developed an innovative gear structure for each of the aforementioned problems. [New content] The main purpose of this creation is to solve the above problems and to provide a chuck gear structure that is connected by a joint between the teeth and can effectively improve the structural strength. The second purpose of this creation is that the design of the gear can be easily processed by cold forging by the improvement of the gear structure, and the manufacturing cost can be effectively reduced. For the above purpose, the gear of the creation has a tapered shape. The tooth portion has a plurality of teeth, and each of the adjacent teeth has a tooth bottom, and one end of the smaller diameter of the tooth portion has a shaft portion and the other end has an end portion, and the tooth portion is An annular positioning groove is formed between the ends, and the teeth of the tooth portion are connected to each other by a connecting portion adjacent to one end of the positioning portion M324560, and the connecting portion has an annular structure. "The design of the teeth of the tooth portion adjacent to the one end of the positioning groove is connected to each other by the connecting portion, so that the force of each tooth during operation can dissipate the force through the connecting portion, thereby achieving the strength of the lifting gear structure. Further, the tooth bottom of the tooth portion of the present invention extends from one end of the adjacent shaft portion toward one end of the end portion and does not penetrate the positioning groove, and is adjacent to one end of the positioning groove at the tooth portion. This structural form enables the creation of the cold forging process, which can shorten the processing time and reduce the processing waste to reduce the manufacturing cost. In addition, the gear made by cold forging has better precision and smoother surface. The above and other objects and advantages of the present invention can be further improved from the detailed description of the selected embodiments and the accompanying drawings, of course, in order to reduce the interference and reduce the noise. This creation is tolerant of certain parts or arrangements of parts, but the selected examples are described in detail in this manual and The construction of the gear 1 has a tapered tooth portion 1 1 having a plurality of teeth 1 1 1 and Each of the two adjacent teeth 1 1 1 has a tooth bottom 1 1 2 , and one end of the smaller diameter of the tooth portion 1 1 has a shaft portion 1 2 , and the other end has an end portion 1 3 , and An annular positioning groove 14 is formed between the tooth portion 1 18 8324560 and the end portion 13 , and a hole 15 is defined in the center portion of the end portion 13 for the tool to be inserted and rotated to rotate the hole. Each of the tooth bases 112 of the tooth portion 11 extends from one end of the adjacent shaft portion 12 toward one end of the end portion 13 and does not penetrate the positioning groove 14 , so that the tooth portion 11 is adjacent to the positioning groove 1 The one end forms a connecting portion 1 6 ' in a ring shape, and the ends of the teeth 1 1 1 adjacent to the positioning groove 14 are connected to each other by the connecting portion 16. The structural design of the gear of the present invention enables the gear of the present creation to It is easy to manufacture by cold heading. It can also be pre-made to be opposite to the gear structure of the creation = mold 2, and then the prepared material is cold forged into the prepared mold 2. (Cold, and it is a conventional technique, which is not described here), as shown in Fig. 2. The 6 phases are connected to each other by the connecting portion 1 at the end adjacent to the positioning groove 14 The tooth 1 ]] part 16 disperses its force, and the heart 2 through the joint processing method also contributes to the improvement of the strength of the gear structure. & - However, the cold forging process is produced by the cold forging process. Processing the linen is not as cold as cutting ~ need =:, so it can effectively reduce the material cost. And the working time 'reducing the cost of working hours. W, therefore can shorten the addition, the cold forging process to make smooth, and can reduce the gear The effect is better with the 倩 倩 且 且 表面 表面 表面 表面 进而 进而 进而 进而 进而 M 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 324 Extending the service life, it is obviously novel, 'progressive and industrially useful, and it is a new type of law. The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention. Therefore, changes in numerical values or substitution of equivalent elements are still subject to the scope of the present invention. From the above detailed description, it will be apparent to those skilled in the art that the creation of the present invention can indeed achieve the aforementioned objectives, and it has been in compliance with the provisions of the Patent Law and has filed a patent application. [Simple diagram of the diagram] The first picture is the appearance of the creation of the second picture is the schematic diagram of the processing state of the creation of the gear. Figure 3 is the appearance of the chuck. Figure 4 is a cross-sectional structure of the chuck. Fig. 6 is a schematic view of the gear of the prior art. Fig. 6 is a schematic view of the machining state of the prior art gear. [Main component symbol description] Tooth 1 1 Tooth bottom 1 1 2 End 1 3 Square hole 1 5 Gear 1 Tooth 1 1 1 Axis Part 1 2 positioning slot 1 4 M324560
連結部1 6 模具2 成型銑刀7 座體8 1 齒盤8 2 螺紋8 3 夾爪8 4 凸塊8 5 齒輪9 齒部9 1 齒9 1 1 齒底9 1 2 圓弧段913 軸部9 2 端部9 3 定位槽9 4 方孔9 5Connecting part 1 6 Mold 2 Forming milling cutter 7 Seat 8 1 Sprocket 8 2 Thread 8 3 Jaw 8 4 Bump 8 5 Gear 9 Tooth 9 1 Tooth 9 1 1 Tooth bottom 9 1 2 Arc segment 913 Shaft 9 2 end 9 3 positioning groove 9 4 square hole 9 5