1327493 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種沖壓模具，尤其涉及一種用於數控轉 塔沖床之沖壓模具。 【先前技術】 數控轉塔沖床係一種用於鈑金加工之高效精密設 備，其廣泛適用於需於同一板材上加工多種標準孔或複雜 異形孔之鈑金加工場所。數控轉塔沖床之沖壓模具係沖床 中之關鍵零件之一。請參見圖1，為一種習知之數控轉塔 沖床之沖壓模具10，其包括一模座11及一脫料板12。模座 11之中心位置設有一沖子111，其與模座11一體成型。脫料 板12設於模座11上方，其中心位置對應沖子111開設有一通 孔121，沖子111相應穿設於通孔121内。模座11與脫料板12 之間還設置有若干彈簧112。由於沖壓模具10之沖子111與 模座11為一體成型，沖子111不能實現更換，沖壓模具10 僅能沖壓單一形狀之孔，無法滿足多樣化之產品設計需 求。同時，沖子111於使用過程中發生磨損時，會導致整個 模座11報廢。另，一體成型之沖壓模具10製造工藝複雜， 生產週期長，成本高。 【發明内容】 鑒於上述内容，有必要提供一種可更換沖子以適於加 工多種形狀之孔，且製造工藝簡單、生產週期短、成本低 之沖壓模具。 一種沖壓模具，包括一模座、一沖子及一脫料板，該 7 1327493 沖子可拆卸地固設於該模座上，該脫料板開設有一供沖子 穿設之通孔’該模座與該脫料板之間設置有至少一彈性元 件。沖子可拆卸地固設於該模座上。沖子包括一沖頭，沖 子相對二側面遠離沖頭之一端分別設有一凸條。沖壓模具 還包括一夾板’夾板固定設置於模座上且位於該模座與該 脫料板之間。夹板上開設有一裝配孔，沖子裝設於該裝配 孔内’且/中子之凸條擋止於該炎板靠近該模座之一表面。 相對於習知技術，該沖壓模具之沖子與模座採用分體 式設計，沖子可拆卸地裝配於該沖壓模具内，從而可實現 更換。當更換不同之沖子時，即可形成不同規格之成型下 模，以適於加工多種形狀之孔。同時，當需要針對新產品 開模時，僅需製造一沖子即可，模座及脫料板均可共用， 成本低^ 使得該沖壓模具之製造工藝簡單，生產週期短， 【實施方式】 下面將結合附圖及較佳實施例對本發明之沖壓模具 做進-步詳細說明。本發明之沖㈣具可用作數控轉塔 床之向上成型模具之下模模具。 ° 請參見圖2，本發明較佳實施例之沖壓模具20包括- 模座21、-夾板22、-脫料板23、—第—沖子241及三第 -螺釘25、三第二螺釘26、二定位肺及六彈性元件μ。 請同時參見圖3與圖4，模座21大體為扁平之圓柱狀， 其端面開設有二^位孔211、三螺紋孔212、三通孔213及 六安裝孔214。模座21之側面設有-向外凸伸之定位拴 215。 8 1327493 夾板22亦大體為扁平之圓柱狀，其中部開設有一裝配 孔221，其端面之周緣開設有二定位孔222、三第一螺紋孔 223、三第二螺紋孔224及六安裝孔225。該定位孔222與模 . 座21之定位孔211相對應，該第一螺紋孔223與模座21之螺 . 紋孔212相對應’該第二螺紋孔224與模座21之通孔213相 ’ 對應，該安裝孔225與模座21之安裝孔214相對應。 ' 脫料板23大體為一倒扣之碟狀，其中部開設有一通孔 231，該通孔231與夾板22之裝配孔221相對應。脫料板23 之端面之周緣開設有六安裝孔232，該安裝孔232與夾板22 之安裝孔225及模座21之安裝孔214相對應。 第一沖子241大體為一長方體塊狀，其上端設置有一 沖頭2411，該沖頭2411沿高度方向之截面形狀為梯形；其 相對二側面之下端分別設有一凸條2412。第一沖子241之 下部可裝設於夾板22之裝配孔221内，其下端之凸條2412 擋止於夾板22之下表面以避免脫出。第一沖子241之上部 可穿設於脫料板之通孔231内。 第一螺釘25上套設有導向套筒29，其可穿設於模座21 之通孔213内，且其端部之螺紋部251可螺設於夾板22之第 二螺紋孔224内。第二螺釘26可螺設於模座21之螺紋孔212 及夹板22之第一螺紋孔223内，從而將夾板22與模座21鎖 固。定位銷27可穿設於模座21之定位孔211與夾板22之定 位孔222内。彈性元件28為螺旋狀之壓簧，其可貫穿夾板 22之安裝孔225 ’且彈性元件28之上下端可分別裝設於脫 料板23之安裝孔232與模座21之安裝孔214内。 9 1327493 組裝時，第一沖子24i從夾板22之下表面穿設裝配孔 221，第一沖子241之凸條2412擋止於夾板22之下表面；定 位銷27穿設於模座21之定位孔211與夹板22之定位孔222 内起定位作用，然後第一螺釘25及第二螺釘26將夾板22鎖 固於模座21上，第一沖子241之凸條2412被夾緊於模座21 與夾板22之間，第一沖子241即被固設於模座21上；同時， 彈性元件28貫穿夾板22之安裝孔225，且彈性元件208之上 下端分別裝設於脫料板23之安裝孔232與模座21之安裝孔 214内。拆卸時，將第一螺釘25與第二螺釘26旋開，夾板 22與模座21分離，即可將第一沖子241取出。 工作時，模座21帶動失板22—同向上運動，當脫料板 23接觸到沖壓板材時即停止運動，模座21與夾板22繼續向 上運動，彈性元件28被壓縮，脫料板23受壓而壓緊沖壓板 材，第一沖子241之沖頭2411逐漸凸伸出脫料板23之通孔 231 ’對沖壓板材進行沖壓。沖壓完成後’推抵模座21及 夾板22向上運動之壓力釋玫，於彈性元件28之彈性回復力 之作用下，脫料板23沿遠離失板22之方向運動，從而推抵 沖壓板材與第一沖子241脫離而完成脫料。 請參見圖5 所示為沖屢模具2〇之第二沖子242，其與 第一沖子241之形狀大體相同，亦為一長方體塊狀。第二 沖子242之沖頭2421為一長方體台狀，其相對二側面之上 端分別開設有一凹槽2423 ;第二沖子242相對二側面之下 端分別設有一凸條2422。 請參見圖6 ’所示為沖壓模具2〇之第三沖子243，其與 1327493 第一沖子241之形狀大體相同，亦為一長方體塊狀。第三 沖子243之沖頭2431為一長方體台狀’其頂部從兩端向中 部凹陷而形成相連接之二斜面2433 ;第三沖子243相對二 側面之下端分別設有一凸條2432。 請參見圖7，所示為沖壓模具20之第四沖子244，其與 第一沖子241之形狀大體相同’亦為一長方體塊狀。第四 沖子244之沖頭2441為一長方體台狀’該沖頭2441相對二 侧面之一端分別設置有一凸台，該沖頭2441與該相對 二側面相鄰之另一側面之上端開設有一凹槽2445，且該凹 槽2445遠離該凸台2443 ;第四沖子244相對二側面之下端 分別設有一凸條2442。 請參見圖8 ’所示為沖壓模具20之第五沖子245，其與 第一沖子241之形狀大體相同’亦為一長方體塊狀。第五 沖子245之沖頭2451為一橫截面大體呈U型之凸台，其邊角 處均被圓角化處理；第五沖子245相對二側面之下端分別 設有一凸條2452。 由於沖壓模具20之第一沖子241、第二沖子242、第三 沖子243、第四沖子244及第五沖子245均為單一構件，另， 可拆卸地裝配於沖壓模具20内，從而可實現更換。更換不 同之沖子時’即可形成不同規格之成型下模，以適於加工 多種形狀之孔。同時，當需要針對新產品開模時，僅需製 造—沖子即可，模座21、夾板22及脫料板23均可共用，使 得該沖壓模具之製造工藝簡單，生產週期短，成本低。 可以理解’沖壓模具20之第一沖子241、第~•沖子 11 1327493 242、第三沖子243、第四沖子244及第五沖子245除藉由夾 板22可拆卸地固設於模座21上以外，還可採用其他方式可 拆卸地固設於模座21上，例如以卡塊卡合或螺釘鎖合之方 式直接固設於模座21上，此時夾板22可省略。另，第一沖 子241、第二沖子242、第三沖子243、第四沖子244及第五 沖子245除沖頭可進行設計變更以外，其形狀也可變更為 立方塊狀、圓柱狀、圓臺狀等。對於形狀大體相同之一組 沖子而言，僅需對應製造一夾板22及一脫料扳23即可。 可以理解，沖壓模具20之彈性元件28還可為橡膠條等 其他彈性元件，另，彈性元件28之數量不限於六個，可根 據實際需要確定。模座21上開設之定位孔211之數量不限 於兩個，螺紋孔212及通孔213之數量不限於三個，均可根 據實際需要之定位銷27、第二螺釘26以及第一螺釘25之數 量確定。夾板22可對應模座21進行相應之設計變更。 上述沖壓模具20還可用作數控轉塔沖床之向下成型 模具之上模模具及其他沖壓機床之成型模具。 綜上所述’本發明確已符合發明專利要件，爰依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施例， 舉凡熟悉本案技藝之人士，於援依本案發明精神所作之等 效修飾或變化，皆應包含於以下之申請專利範圍内。 【圖式簡單說明】 圖1儀一種現有之沖壓模具之立體分解示意圖。 圖2係本發明較佳實施例之沖壓模具之立體組裝示意 圖。 12 1327493 圖3係圖2所示沖壓模具之立體分解示意圖。 圖4係圖2所示沖壓模具之第一沖子之立體示意圖。 圖5係圖2所示沖壓模具之第二沖子之立體示意圖。 圖6係圖2所示沖壓模具之第三沖子之立體示意圖。 圖7係圖2所示沖壓模具之第四沖子之立體示意圖。 圖8係圖2所示沖壓模具之第五沖子之立體示意圖。 【主要元件符號說明】 沖壓模具 20 模座 21 定位孔 211 螺紋孔 212 通孔 213 安裝孔 214 定位栓 215 夾板 22 裝配孔 221 定位孔 222 第一螺紋孔 223 第二螺紋孔 224 安裝孔 225 脫料板 23 通孔 231 安裝孔 232 第一沖子 241 第一螺釘 25 螺紋部 251 第二螺釘 26 定位銷 27 彈性元件 28 導向套筒 29 第二沖子 242 第三沖子 243 第四沖子 244 第五沖子 245 凹槽 2423 ' 2445 斜面 2433 凸台 2443 沖頭 2411、 2421 、 2431 、 2441 、2451 凸條 2412、2422、2432、2442、2452 131327493 IX. Description of the Invention: [Technical Field] The present invention relates to a stamping die, and more particularly to a stamping die for a CNC turret punch press. [Prior Art] The CNC turret punch press is a high-efficiency precision equipment for sheet metal processing, which is widely used in sheet metal processing places where a variety of standard holes or complex shaped holes are required to be processed on the same plate. The stamping die of the CNC turret punch press is one of the key parts in the press. Referring to Fig. 1, a conventional stamping die 10 for a CNC turret punch press includes a die holder 11 and a stripper plate 12. A punch 111 is formed at the center of the die holder 11 and is integrally formed with the die holder 11. The stripping plate 12 is disposed above the die holder 11, and a punching hole 121 is defined in the center of the punching plate 111. The punching plate 111 is correspondingly disposed in the through hole 121. A plurality of springs 112 are also disposed between the die holder 11 and the stripper plate 12. Since the punch 111 of the stamping die 10 and the die holder 11 are integrally formed, the punch 111 cannot be replaced, and the punching die 10 can only punch a single-shaped hole, which cannot meet the diversified product design requirements. At the same time, when the punch 111 wears out during use, the entire die base 11 is scrapped. In addition, the integrally formed stamping die 10 has a complicated manufacturing process, a long production cycle, and high cost. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a stamping die which is replaceable with a punch for processing a plurality of shapes of holes, and which has a simple manufacturing process, a short production cycle, and low cost. A stamping die comprising a die holder, a punch and a stripper plate, wherein the 7 1327493 punch is detachably fixed to the die holder, and the stripper plate defines a through hole for the punch to pass through At least one elastic element is disposed between the die holder and the stripper plate. The punch is detachably fixed to the mold base. The punch includes a punch, and the punch is provided with a ridge on each of the two sides away from the end of the punch. The stamping die further includes a plywood plate which is fixedly disposed on the die holder and located between the die holder and the stripper plate. A mounting hole is formed in the clamping plate, and a punch is mounted in the mounting hole ‘and/the neutron rib is blocked from the surface of the slab adjacent to the die holder. Compared with the prior art, the stamping die and the die holder adopt a split design, and the punch is detachably assembled in the punching die, so that replacement can be realized. When different punches are replaced, forming dies of different sizes can be formed to be suitable for processing holes of various shapes. At the same time, when it is necessary to open a mold for a new product, only one punch can be manufactured, and the die holder and the stripper plate can be shared, and the cost is low. The manufacturing process of the stamping die is simple, and the production cycle is short, [Embodiment] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the stamping die of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. The punch (4) of the present invention has a lower mold which can be used as an upward forming mold for a numerical control turret bed. Referring to FIG. 2, a stamping die 20 according to a preferred embodiment of the present invention includes a die holder 21, a splint 22, a stripping plate 23, a first punch 241, a third screw 25, and a third screw 26. , two positioning lung and six elastic elements μ. Referring to FIG. 3 and FIG. 4 at the same time, the die holder 21 is generally a flat cylindrical shape, and has a second hole 211, a three-threaded hole 212, a three-way hole 213 and six mounting holes 214. The side of the die holder 21 is provided with a positioning 拴 215 that protrudes outward. 8 1327493 The splint 22 is also generally a flat cylindrical shape, and a fitting hole 221 is defined in the middle portion thereof, and two positioning holes 222, three first threaded holes 223, three second threaded holes 224 and six mounting holes 225 are defined in the periphery of the end surface. The positioning hole 222 corresponds to the positioning hole 211 of the mold base 21. The first threaded hole 223 corresponds to the threaded hole 212 of the mold base 21. The second threaded hole 224 is opposite to the through hole 213 of the mold base 21. Correspondingly, the mounting hole 225 corresponds to the mounting hole 214 of the die holder 21. The stripper plate 23 is generally in the form of a reversed dish, and a through hole 231 is formed in the middle portion thereof, and the through hole 231 corresponds to the fitting hole 221 of the cleat 22. A peripheral end of the end surface of the stripper plate 23 is provided with six mounting holes 232 corresponding to the mounting holes 225 of the clamping plate 22 and the mounting holes 214 of the die holder 21. The first punch 241 is generally in the shape of a rectangular parallelepiped block, and a punch 2411 is disposed at an upper end thereof. The punch 2411 has a trapezoidal shape in a cross-sectional shape in a height direction; and a convex strip 2412 is respectively disposed at a lower end of the opposite sides. The lower portion of the first punch 241 can be mounted in the fitting hole 221 of the clamping plate 22, and the lower end of the rib 2412 blocks the lower surface of the clamping plate 22 to avoid the escape. The upper portion of the first punch 241 can be passed through the through hole 231 of the stripper. The first screw 25 is sleeved with a guiding sleeve 29 which can be inserted into the through hole 213 of the die holder 21, and the threaded portion 251 of the end portion thereof can be screwed into the second threaded hole 224 of the clamping plate 22. The second screw 26 can be screwed into the threaded hole 212 of the die holder 21 and the first threaded hole 223 of the clamping plate 22 to lock the clamping plate 22 and the die holder 21. The positioning pin 27 can be disposed in the positioning hole 211 of the die holder 21 and the positioning hole 222 of the clamping plate 22. The elastic member 28 is a spiral compression spring which can pass through the mounting hole 225' of the clamping plate 22 and the upper end of the elastic member 28 can be respectively mounted in the mounting hole 232 of the stripping plate 23 and the mounting hole 214 of the die holder 21. 9 1327493 When assembling, the first punch 24i passes through the mounting hole 221 from the lower surface of the clamping plate 22, and the protruding bar 2412 of the first punch 241 blocks the lower surface of the clamping plate 22; the positioning pin 27 is disposed through the die holder 21 The positioning hole 211 and the positioning hole 222 of the clamping plate 22 are positioned, and then the first screw 25 and the second screw 26 lock the clamping plate 22 to the mold base 21, and the protruding strip 2412 of the first punch 241 is clamped to the mold. Between the seat 21 and the clamping plate 22, the first punch 241 is fixed on the die holder 21; at the same time, the elastic member 28 penetrates the mounting hole 225 of the clamping plate 22, and the upper and lower ends of the elastic member 208 are respectively mounted on the stripping plate. The mounting hole 232 of the 23 is in the mounting hole 214 of the die holder 21. When disassembling, the first screw 25 and the second screw 26 are unscrewed, and the clamp 22 is separated from the die holder 21, so that the first punch 241 can be taken out. During operation, the die holder 21 drives the lost plate 22 to move in the same direction. When the stripper plate 23 contacts the stamped sheet, the mold block 21 and the splint 22 continue to move upward, the elastic member 28 is compressed, and the stripper plate 23 is subjected to the movement. Pressing and pressing the stamped sheet, the punch 2411 of the first punch 241 gradually protrudes from the through hole 231' of the stripper plate 23 to punch the stamped sheet. After the stamping is completed, the pressure of the upward movement of the mold base 21 and the clamping plate 22 is released. Under the elastic restoring force of the elastic member 28, the stripping plate 23 moves in a direction away from the losing plate 22, thereby pushing against the stamping plate and The first punch 241 is disengaged to complete the stripping. Referring to Fig. 5, a second punch 242 of the punching die 2 is formed, which is substantially the same shape as the first punch 241, and is also a rectangular parallelepiped block. The punch 2421 of the second punch 242 is in the shape of a rectangular parallelepiped, and a groove 2423 is defined in each of the upper ends of the two punches 242. The second punch 242 is respectively provided with a rib 2422 at the lower ends of the two sides. Referring to Fig. 6', a third punch 243 of the stamping die 2 is shown, which is substantially the same shape as the 1327493 first punch 241, and is also a rectangular parallelepiped block. The punch 2431 of the third punch 243 is a rectangular parallelepiped shape, and its top portion is recessed from the both ends toward the middle portion to form two inclined faces 2433; the third punch 243 is respectively provided with a rib 2432 at the lower ends of the two sides. Referring to Fig. 7, a fourth punch 244 of the stamping die 20 is shown which is substantially identical in shape to the first punch 241' and is also a rectangular block. The punch 2441 of the fourth punch 244 is a rectangular parallelepiped shape. The punch 2441 is respectively provided with a boss at one end of the two sides, and a recess is formed at the upper end of the other side of the punch 2441 adjacent to the opposite sides. The groove 2445 is away from the boss 2443; the fourth punch 244 is respectively provided with a rib 2442 at the lower ends of the two sides. Referring to Fig. 8', a fifth punch 245 of the stamping die 20, which is substantially identical in shape to the first punch 241, is also shown as a rectangular block. The punch 2451 of the fifth punch 245 is a U-shaped boss having a cross section, and the corners thereof are rounded; the fifth punch 245 is respectively provided with a ridge 2452 at the lower ends of the two sides. Since the first punch 241, the second punch 242, the third punch 243, the fourth punch 244, and the fifth punch 245 of the stamping die 20 are all single members, they are detachably assembled in the stamping die 20. , so that replacement can be achieved. When different punches are replaced, the forming dies of different specifications can be formed to be suitable for processing holes of various shapes. At the same time, when it is necessary to mold the new product, only the punch can be manufactured, and the die holder 21, the clamping plate 22 and the stripping plate 23 can be shared, so that the stamping die has a simple manufacturing process, a short production cycle and low cost. . It can be understood that the first punch 241, the first punch 11 1327493 242, the third punch 243, the fourth punch 244 and the fifth punch 245 of the stamping die 20 are detachably fixed by the splint 22 except In addition to the die holder 21, the die holder 21 can be detachably fixed to the die holder 21 by other means, for example, by snap-fit or screw-locking, and the clamp 22 can be omitted. In addition, the first punch 241, the second punch 242, the third punch 243, the fourth punch 244, and the fifth punch 245 can be changed in shape to be more cubic, in addition to the design change of the punch. Cylindrical, round table, etc. For a group of punches having substantially the same shape, it is only necessary to manufacture a splint 22 and a stripper 23 accordingly. It can be understood that the elastic member 28 of the stamping die 20 can also be other elastic members such as rubber strips. Further, the number of the elastic members 28 is not limited to six, and can be determined according to actual needs. The number of the positioning holes 211 formed in the die holder 21 is not limited to two, and the number of the screw holes 212 and the through holes 213 is not limited to three, and the positioning pin 27, the second screw 26, and the first screw 25 can be used according to actual needs. The quantity is determined. The splint 22 can be correspondingly designed to change corresponding to the mold base 21. The above-mentioned stamping die 20 can also be used as a molding die for a downward molding die and a die press machine of a numerical control turret punch press. In summary, the present invention has indeed met the requirements of the invention patent and has filed a patent application in accordance with the law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. [Simple description of the drawing] Fig. 1 is a perspective exploded view of a conventional stamping die. Fig. 2 is a perspective view showing the three-dimensional assembly of a stamping die according to a preferred embodiment of the present invention. 12 1327493 Figure 3 is a perspective exploded view of the stamping die shown in Figure 2. Figure 4 is a perspective view of the first punch of the stamping die shown in Figure 2. Figure 5 is a perspective view of the second punch of the stamping die shown in Figure 2. Figure 6 is a perspective view of the third punch of the stamping die shown in Figure 2. Figure 7 is a perspective view of the fourth punch of the stamping die shown in Figure 2. Figure 8 is a perspective view of the fifth punch of the stamping die shown in Figure 2. [Main component symbol description] Stamping die 20 Die holder 21 Positioning hole 211 Threaded hole 212 Through hole 213 Mounting hole 214 Positioning pin 215 Plywood 22 Mounting hole 221 Positioning hole 222 First threaded hole 223 Second threaded hole 224 Mounting hole 225 Plate 23 through hole 231 mounting hole 232 first punch 241 first screw 25 threaded portion 251 second screw 26 positioning pin 27 elastic member 28 guide sleeve 29 second punch 242 third punch 243 fourth punch 244 Five punches 245 Groove 2423 ' 2445 Bevel 2433 Boss 2443 Punch 2411, 2421, 2431, 2441, 2451 Ribs 2412, 2422, 2432, 2442, 2452 13