200810321 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種馬達定子，尤指一種在沖床的連續 冲壓過程中，使連結於上、下模上的第一活動模同步轉動 或移動，以沖出複數個具有不同寬度的肋骨的導磁片，再 使各導磁片依序堆疊結合，於各堆疊的肋骨至少一側形成 至少-倒角的馬達定子、製造該馬達定子的模具及製造該 馬達定子的方法。 【先前技術】 由於各種動力機械的研發使用，取代了大部份的人 工，使付人們在生活上更加便利。而在各種動力機械中， 馬達常是其主要的裝置，以藉由電力或其他能源的驅動， 使馬達内的轉子轉動，將動力輸出。 上述馬達的結構主要是在一外殼内部固定一可產生磁 力的疋子，其與一轉子保持一定的間距。上述定子主要係 由複數個堆疊的導磁片結合而成’於各導磁片上分別設有 複數個上下貫通的通孔’使複數個肋骨形成於各通孔之 、至 線圈分別捲繞於各堆疊的肋骨的外周緣，爯 將，圈與電源呈電性連接。於通電後，感應各肋骨，進而 使¥磁片產生磁性，藉由同磁性相斥的原理，使轉 的轉動，以輸出動力。 研 猎由亡述結構，可使定子產生磁性，以推動轉子轉動； 旦’各：疊的肋骨的外周緣係分別捲繞一銅質線圈，在大’ 里生產％，其銅線的耗費量相當可觀，將大幅增加銅線的 5 200810321 使用量’而由於銅線成本的增加，將使得商品的競爭力下 降’再者’由於銅線的大量使用，相對的將增加地球資源 的浪費，實不符合環保的需求。 有鐘於此’為了改善上述之缺點，使馬達定子能減少 =線圈捲繞的長度，以降低材料成本，進而增加產品的 贶爭力同¥符合核保需求，發明人積多年的經驗及不斷 的研發改進，遂有本發明之產生。 【發明内容】 —本土明之主要目的在提供一種馬達定子及製造該馬達 •的方4 #由冲床的連續沖壓，沖出複數個具有不同 =又，肋月的導磁片’再將各導磁片依序堆疊結合，以於 2且的肋骨—側形成至少—倒角的方法及結構，俾能減 ^繞於堆疊的肋骨的外周緣的銅線長度，以降低材料成 本’同時符合環保需求。 #本毛明之一人要目的在提供一種製造馬達定子的模具， 上、、下拉分別結合至少—可受控制而同步轉動或移 曾：、/舌動杈結構’俾能沖壓出具有不同寬度的肋骨的 ^磁片卩於堆登結合後，於各堆疊的肋骨一側形成至少 制為達上述發明之目的，本發明所設之一種馬達定子之 =方法二包括下列步驟、提供-可連續移動的初胚； 杈具以一沖碩於初胚上沖出複數個通孔，使複 骨形成於各通孔之間；e•提供至少—連結於模具上 、弟-活動模，以沖出複數個肋骨的―側，&沖出一導磁片 200810321 的外形；e·漸進的調整連結於模具上的至少一第一活動 模，並重覆a至d步驟；以及f.堆疊並結合—預定數目的 導磁片。 f施時’上述製造方法更包括一送料步驟，以利用一 送料機送出連續移動的初胚。 實施時，於步驟c之後更包括一步驟，係漸進的調整 一連結於模具上的第二活動模，以沖出複數個肋骨的另 侧，上述第一、二活動模係為反向轉動或移動。 -種製造馬達定子的模具’包括—組相搭配以進行沖 壓作業且可同步調整位置的上、下模，該上、下模分別包 括至少一沖孔部、第一活動模以及一外形沖出部。該沖孔 部包括複數個通孔，複數個肋骨形成於各通孔之間；該第 一活動模係相鄰沖孔部’包括複數個形成於通孔一側的<孔 道’供以-沖頭沖出複數個肋骨的一側；該外形沖 相鄰上述第-沖邊部’包括一預定形狀的沖孔供以一沖 頭沖出一導磁片的外形。 *實施時，該第一活動模相鄰一第二活動模，該第二活 動模包括複數個形成於通孔另側的孔道，供以 屮 複數個肋骨的另側。 Τ貝汗出 一種馬達定子，係配合上述方法及模具所製成，包括 複數:堆疊並結合的導磁片’該等導磁片分別設有複數個 上下貫通的通孔，使複數個肋骨形成於各通孔之間，其主 要的技術特點在於··該堆疊的導磁片的各肋骨一側共同形 成至少-倒角’藉以使至少一線圈分別捲繞於各堆疊的肋 200810321 骨的外周緣時，減少線圈捲繞的長度。 實施時’該堆疊的導磁片的肋骨另側亦可分別設有至 少一倒角。 為便於對本發明能有更深入的瞭解，茲詳述於後： 【實施方式】 請參閱第1、2圖所示，其為本發明馬達定子丨之第一 實施例，包括複數個堆疊並結合的圓板形導磁片丨〇，任一 導磁片10的板面上設有二層同心並分別呈圓形陣列狀分佈 的通孔11 ’使複數個肋骨丨2形成於各通孔丨丨之間。其中， 由上往下數的第二片導磁片1〇的各肋骨12的寬度大於第 一片導磁片10的各肋骨12的寬度，而第三片導磁片1Q的 各肋骨12的寬度又大於第二片導磁片1〇的各肋骨以的寬 度以固疋的長度使上下堆疊的各導磁片1〇依序加寬， 使各肋骨12的一侧上端共同形成一呈階梯狀的倒角13。所 述的倒角13可同時形成於各肋骨12一側的上、下兩端（圖 中未示），以減少捲繞於各堆疊的肋骨12的外周緣的線圈 長度。 請參閱第3、4圖所示，其為本發明馬達定子i之第二 實鉍例其中，上述各肋骨12的一側所共同形成的階樣狀 倒角13亦可同日守形成於各肋骨12的另側，而使各倒角13 相互對稱。 凊參閱第5圖所示，係顯示本發明馬達定子2之另一 種形態，其雖然在外觀上與上述馬達定子不相同，但 仍可適用倒角13的結構，以達到減少捲繞線圈長度的效果。 8 200810321 請參閱第6圖所示，係為本發明製造馬達定子之模具 3之第一實施例’藉由該實施例的應用可沖出上述馬達定子 1之第一實施例結構。該模具3包括一組相互搭配以進行沖 壓作業的上、下模（31、32 )，其分別固定於一沖床9的上 杈座91及下模座92上（如第7圖所示），該上、丁模（31、 32)分別包括二沖孔部34、二第一活動模％以及一外形 出部36。 請同時參閱第卜6、7圖所示’該二沖孔部34分別包 括複數個通孔341 ’複數個肋骨342形成於各通孔341之 間，以沖出導磁片10板面上二層同心並分別呈圓形陣列狀 分佈的通孔U ’使複數個肋骨12形成於各通孔U之間。 該二個第一活動模35係相鄰二沖孔部34，該等第一 活動模35分別包括複數個形成於通孔u 一側的孔道如， 以藉由凸出於上模31下方的沖頭311沖出複數個肋骨12 的侧。該上模31設有二個限位槽312及複數個限位件 313;在本實施例中，該等限位件313係為一環形塊，環形 塊的外側鎖合於上模31底部，使環形塊的内側向限位槽 312的中心方向凸出，於第一活動模％容置於限位槽犯 内後’阻擋於第一活動模35的下方，使該第一活動模Μ 不會向下掉洛；另，該上模31的各第一活動模Μ的下方 分別設有至少一導桿314。該下模32的二個第一活動模託 分別結合於—傳動板36的一端，該等傳動板％的中央部 位以螺絲連結於一托料板37的一端，托料板心另端設 有至少一導槽37卜以供各導桿314於導槽371内上下移 9 200810321 =二°= 動 另端/別連結一齒輪組38，該傳動板 I、回輪組38合设為一傳動裝置39’該齒輪組⑽連〜 電腦控制的步進馬達93，藉以連動傳動裝置39、下模^ 的第-活動模35、托料板37及上模 、 從而使上、下模（3卜32)相對 =35’ 動或移動。 合弟活動杈35同步轉 該外形沖出部391係相鄰上述第—活動模％， =定形狀（例如：圓形）的沖孔392， 模。： 凸出的/頭=沖出一導磁片1〇的外形，並向下掉落 叫參閱弟8圖所示’係為本發明製造馬達定子之模且 弟二實施例，藉由該實施例的應用可沖出上述馬達定子、 :實施例結構（如第3圖所示）。其中該模具*更包 目鄰上述第一活動模35的第二活動模Μ，而該第二活 42 j^包括複數個形成於導磁片10的通孔Π另側的孔道 乂猎由冲頭311沖出複數個肋骨12的另側。 ，參閱第9圖所示’係為本發明利用上述模具以製造 馬達疋子之方法，主要包括下列步 提供一可連續移動的初胚； 提供一杈具’以一沖頭於初胚上沖出複數個通 孔，使複數個肋骨形成於各通孔之間； 提供至少-連結於模具上的第—活動模，以沖出 複數個肋骨的一側； 沖出一導磁片的外形； 漸進的調整至少一第_活叙 并击脅 ^ ι H ^ ，古動权，亚重覆a至d步 a· b. c. d· e. 200810321 驟，以及 f·堆豐亚結合一預定數目的導磁片。 實施時’上述a步驟之前更包括 一送料機送出連續移動的初胚。 幻用 可沖出望- H rm 述步驟完成後 二中出弟-片固形導磁片1〇，並向下掉落；該導磁片1〇 第一=12的寬度分別設為？，而在使連結於模具3上的 第仰岡5轉動—固定角度以移動-固定距離D時(如 第ίο圖所示），則可沖出複數個肋骨12的一侧， 圓料磁片的各肋骨12寬度值分別為w_d (如第u㈣片 rm*?81料w10的各財12寬度值分別為 [2D(如幻2圖所示），而依漸窄，使各肋骨12的一側下 一呈階梯狀的倒角13;而藉由電腦的控制，亦 :月月12的一側上端共同形成-呈階梯狀的倒角13 i的導磁弟一活動模35應用在不同樣 =的ν磁片亦可以直線移動的方式產生一固定的距 另’睛參閱第4、13圖所示，上述步驟c之後更包括 :t:，係以第二活動模41分別沖出-導磁片10的複數 肋月12的另側，而在漸進的調整第一、二活動模⑶、 4一1)反向轉動的角度或移動的距離後則可使各肋骨 二侧形成相對稱的倒角13。 的 因此，本發明可藉由沖床的連續沖愿，沖 有不同寬度的肋骨的導磁片，以於堆疊的各導磁片的肋骨 側或一側形成至少一倒角’以減少銅線捲繞的長度，不 11 200810321 但能有效降低材料成本，且可符合環保需求。 綜上所述’依上文所揭示之内容，本發明確可達到發 明之預期目的，提供一種能減少銅質線圈捲繞的長度，以 降低材料成本’進而增加產品的競爭力，同時符合環保需 求的馬達定子、製造該馬達定子的模具及製造該馬達定子 的方法，極具產業上利用之價值，爰依法提出發明專利申 請0 【圖式簡單說明】 第1圖係為本發明馬達定子之第一實施例之俯視圖。 第2圖係為第1圖之a-A，剖面圖。 第3圖係為本發明馬達定子之第二實施例之俯視圖。 第4圖係為第3圖之B-B，剖面圖。 第5圖係為本發明馬達定子之另一形態之俯視圖。 第6圖係為本發明製造馬達定子之模具之第一實施例之俯 視圖。 第7圖係為本發明製造馬達定子之模具固定於沖床上之示 意圖。 第8圖係為本發明製造馬達定子之模具之第二實施例之俯 視圖。 $ 9圖係為本發明製造馬達定子之方法之步驟圖。 第10圖係為本發明之第一活動模轉動一固定角度以移動一 固定距離D時之示意圖。 第11圖係為本發明之導磁片的各肋骨寬度值分別為B時 之示意圖。 12 活動模以反向轉動時 之示意 【主要元件符號說明】 馬達定子 卜2 通孔 11 倒角 13 上、下模 31、32 限位槽 312 導桿 314 通孔 341 第一活動模 35 傳動板 36 導槽 371 傳動裝置 39 沖孔 392 孔道 42 上模座 91 步進馬達 93 200810321 第12圖係為本發明之導磁片的各肋骨寬度值分別為 時之示意圖。 · 第13圖係為本發明之第 圖0 導磁片 肋骨 模具 沖頭 限位件 沖孔部 肋骨 孔道 托料板 齒輪組 外形沖出部 弟一活動模 沖床 下模座 10 12 3 311 313 34 342 351 37 38 391 41 9 92 13200810321 IX. Description of the Invention: [Technical Field] The present invention relates to a motor stator, and more particularly to a synchronous movement or movement of a first movable mold coupled to an upper and a lower mold during a continuous punching process of a punch press. a plurality of magnetic conductive sheets having different widths of ribs are punched out, and then the magnetic conductive sheets are sequentially stacked and combined, and at least one side of each stacked rib is formed with at least one chamfered motor stator, a mold for manufacturing the motor stator, and A method of manufacturing the motor stator. [Prior Art] Due to the development and use of various power machines, most of the labor is replaced, making people more convenient in life. In various power machines, the motor is often the main device to drive the rotor in the motor to drive power through the driving of electric power or other energy sources. The above-mentioned motor is mainly constructed by fixing a force generating magnetic force inside a casing, which is kept at a certain distance from a rotor. The stator is mainly composed of a plurality of stacked magnetic conductive sheets, and a plurality of through-holes are formed on each of the magnetic conductive sheets, so that a plurality of ribs are formed in each of the through holes, and the coils are respectively wound around the respective coils. The outer circumference of the stacked ribs is electrically connected to the power supply. After energization, each rib is sensed, and the magnet is magnetized. By the principle of magnetic repelling, the rotation is rotated to output power. The hunting and hunting structure can make the stator magnetically, so as to push the rotor to rotate. Once the outer circumference of the stacked ribs is wound around a copper coil, the % of the large rib is produced, and the consumption of the copper wire is Considerable, it will greatly increase the use of copper wire 5 200810321 'and the increase in the cost of copper wire will reduce the competitiveness of commodities. 'Furthermore' will increase the waste of earth resources due to the large use of copper wire. Not meeting environmental needs. In order to improve the above shortcomings, the motor stator can be reduced = the length of the coil winding to reduce the material cost, thereby increasing the product's competitiveness and complying with the nuclear protection requirements, the inventor has accumulated years of experience and constant The development of the invention has not been produced. SUMMARY OF THE INVENTION - The main purpose of the local Ming is to provide a motor stator and the square of the manufacturing of the motor. 4# Continuous punching of the punching machine, punching out a plurality of magnetic conductive sheets with different = rib months, and then magnetically guiding each The sheets are sequentially stacked and combined to form at least a chamfering method and structure on the rib-side, and the length of the copper wire around the outer circumference of the stacked ribs can be reduced to reduce the material cost while meeting environmental protection requirements. . #本毛明 One person wants to provide a mold for manufacturing a motor stator, which can be combined with at least - controllable and synchronous rotation or shifting: / / tongue-and-click structure - can punch out ribs with different widths After the stacking and bonding, forming at least one side of each stacked rib is made for the purpose of the above invention. The motor stator of the present invention includes the following steps: providing - continuously movable The initial embryo; the cookware punches a plurality of through holes on the primary embryo, so that the complex bone is formed between the through holes; e• provides at least—connected to the mold, the younger-moving mold, to punch out the plural The sides of the ribs, & rush out the shape of a magnetic sheet 200810321; e· progressively adjust at least one first movable mold attached to the mold, and repeat steps a to d; and f. stack and combine - predetermined The number of magnetic sheets. The above manufacturing method further includes a feeding step of feeding a continuously moving primordial with a feeder. In the implementation, after step c, further comprising a step of progressively adjusting a second movable mold coupled to the mold to punch out the other side of the plurality of ribs, wherein the first and second movable mold systems are reversely rotated or mobile. - a mold for manufacturing a motor stator' includes upper and lower molds that are matched to perform a pressing operation and can simultaneously adjust positions, and the upper and lower molds respectively include at least one punching portion, a first movable mold, and a shape punching out unit. The punching portion includes a plurality of through holes, and a plurality of ribs are formed between the through holes; the adjacent movable portion adjacent the punching portion includes a plurality of <holes formed on one side of the through hole. The punch punches out a side of the plurality of ribs; the outer shape of the punching portion adjacent to the first punching portion includes a punching hole of a predetermined shape for punching out a shape of a magnetic conducting piece with a punch. * In implementation, the first movable mold is adjacent to a second movable mold, and the second movable mold includes a plurality of holes formed on the other side of the through hole for the other side of the plurality of ribs. Mussel sweat is a motor stator which is made by the above method and mold, and includes a plurality of stacked and combined magnetic conductive sheets. The magnetic conductive sheets are respectively provided with a plurality of through holes penetrating through the upper and lower sides to form a plurality of ribs. Between each of the through holes, the main technical feature is that the rib sides of the stacked magnetic conductive sheets together form at least a chamfer' so that at least one coil is wound around each of the stacked ribs 200810321 At the edge, reduce the length of coil winding. When implemented, the ribs of the stacked magnetic sheets may be provided with at least one chamfer on each side. In order to facilitate a more in-depth understanding of the present invention, it will be described in detail later: [Embodiment] Please refer to Figures 1 and 2, which are the first embodiment of the motor stator assembly of the present invention, including a plurality of stacked and combined The circular plate-shaped magnetic conductive sheet 丨〇, the surface of any of the magnetic conductive sheets 10 is provided with two layers of through holes 11 ′ which are concentrically distributed in a circular array, so that a plurality of ribs 2 are formed in the respective through holes 丨Between 丨. Wherein, the width of each rib 12 of the second piece of magnetic conductive sheet 1 from the top to the bottom is larger than the width of each rib 12 of the first piece of magnetic sheet 10, and the ribs 12 of the third piece of magnetic sheet 1Q The width of each of the ribs of the second magnetic sheet 1 〇 is further widened by the length of the solid ribs, and the upper and lower ends of the ribs 12 are sequentially widened, so that the upper ends of the ribs 12 form a step. Shaped chamfer 13. The chamfers 13 can be simultaneously formed on the upper and lower ends (not shown) on one side of each of the ribs 12 to reduce the length of the coil wound around the outer circumference of the ribs 12 of each stack. Please refer to FIGS. 3 and 4 , which are the second embodiment of the motor stator i of the present invention. The stepped chamfer 13 formed by one side of each of the ribs 12 can also be formed on each rib. The other side of 12, and the chamfers 13 are symmetrical to each other. Referring to Fig. 5, there is shown another embodiment of the motor stator 2 of the present invention. Although it is different in appearance from the motor stator, the structure of the chamfer 13 can be applied to reduce the length of the wound coil. effect. 8 200810321 Referring to Fig. 6, a first embodiment of a mold 3 for manufacturing a motor stator of the present invention can be punched out of the structure of the first embodiment of the motor stator 1 by the application of the embodiment. The mold 3 includes a set of upper and lower molds (31, 32) which are matched with each other for punching work, and are respectively fixed to the upper jaw 91 and the lower mold base 92 of a punch 9 (as shown in Fig. 7). The upper and lower molds (31, 32) respectively include two punching portions 34, two first movable mold %, and one outer shape portion 36. Please also refer to FIG. 6 and FIG. 7 'the two punching portions 34 respectively include a plurality of through holes 341'. A plurality of ribs 342 are formed between the through holes 341 to punch out the surface of the magnetic conductive sheet 10 The through holes U' which are concentric and are distributed in a circular array shape respectively form a plurality of ribs 12 between the respective through holes U. The two movable molds 35 are adjacent to the two punching portions 34, and the first movable molds 35 respectively include a plurality of holes formed on one side of the through hole u, for example, by protruding below the upper mold 31. The punch 311 punches out the side of the plurality of ribs 12. The upper mold 31 is provided with two limiting slots 312 and a plurality of limiting members 313. In the embodiment, the limiting members 313 are an annular block, and the outer side of the annular block is locked to the bottom of the upper mold 31. Extending the inner side of the annular block toward the center of the limiting slot 312, and blocking the first movable mold 35 after the first movable mold is placed in the limiting slot, so that the first movable module does not At least one guide rod 314 is disposed under each of the first movable molds of the upper mold 31. The two movable mold holders of the lower mold 32 are respectively coupled to one end of the drive plate 36. The central portion of the drive plate is screwed to one end of a tray 37, and the other end of the tray is provided at the other end. At least one guiding groove 37 is provided for each guiding rod 314 to move up and down in the guiding groove 371. 9 200810321 = 2° = the other end is connected to a gear set 38, and the transmission plate I and the return wheel set 38 are combined into one transmission. The gear set (10) is connected to a computer-controlled stepping motor 93, thereby interlocking the transmission 39, the first movable mold 35 of the lower mold, the carrier plate 37 and the upper mold, thereby making the upper and lower molds (3b) 32) Relative = 35' moving or moving. The merged activity 杈 35 is synchronously rotated. The outer shape punching portion 391 is a punching hole 392 adjacent to the first movable mold %, = fixed shape (for example, a circular shape). : bulging / head = punching out the shape of a magnetic disk 1 ,, and dropping downwards, as shown in the figure of Figure 8, is the model for manufacturing the motor stator of the present invention, and the second embodiment, by this implementation The application of the example can be made out of the above-described motor stator, the structure of the embodiment (as shown in Fig. 3). Wherein the mold* is further enclosed to the second movable mold of the first movable mold 35, and the second movable portion includes a plurality of holes formed on the other side of the through hole of the magnetic conductive sheet 10. The head 311 punches out the other side of the plurality of ribs 12. Referring to Figure 9, the method for manufacturing the motor tweezers using the above mold mainly comprises the following steps: providing a continuously movable embryo; providing a cooker with a punch on the embryo a plurality of through holes are formed, so that a plurality of ribs are formed between the through holes; at least a first movable mold coupled to the mold is provided to punch out one side of the plurality of ribs; and a shape of the magnetic guide piece is punched out; Gradually adjust at least one of the first _ live and threaten ^ ι H ^ , ancient power, sub-replication a to d step a · bc d · e. 200810321, and f· heap Fengya combined with a predetermined number of guides Magnetic sheet. When implemented, the above a step further includes a feeder to deliver the continuously moving primordial. Magical use can be flushed out - H rm After the completion of the steps, the second middle-aged-chip-shaped magnetic conductive sheet 1〇, and dropped downward; the magnetic conductive sheet 1 〇 the first = 12 width is set to? When the first elevation 5 connected to the mold 3 is rotated - the fixed angle is moved - the fixed distance D (as shown in FIG. ίο), one side of the plurality of ribs 12 can be punched out, the circular magnetic piece The width values of the ribs 12 are respectively w_d (such as the uth (four) piece rm*? 81 material w10 of each of the 12 width values are [2D (as shown in the magic 2 picture), and gradually narrow, so that each of the ribs 12 The stepped chamfer 13 is formed on the side; and by the control of the computer, the upper end of the month 12 is formed together with the stepped chamfer 13 i, and the movable mold 35 is applied to the movable mold 35. The ν magnetic sheet can also be moved in a straight line to produce a fixed distance. The above step c further includes: t:, and the second movable mold 41 is separately punched out-guided. The other side of the plurality of ribs 12 of the magnetic sheet 10, and the progressively adjusting the angle of the reverse rotation of the first and second movable molds (3), 4-1) or the distance of the movement, the two sides of the ribs can be symmetrical. Chamfer 13. Therefore, the present invention can punch the magnetic ribs of the ribs of different widths by the continuous rush of the punching machine to form at least one chamfer on the rib side or one side of the stacked magnetic permeable sheets to reduce the copper coil. The length of the winding, not 11 200810321 can effectively reduce the material cost and meet the environmental protection needs. In view of the above, the present invention can achieve the intended purpose of the invention, and provides a method for reducing the length of copper coil winding, thereby reducing the material cost, thereby increasing the competitiveness of the product, while complying with environmental protection. The motor stator required, the mold for manufacturing the motor stator, and the method for manufacturing the motor stator are of great industrial value, and the invention patent application is filed according to law. [Simplified description of the drawing] FIG. 1 is the motor stator of the present invention. A top view of the first embodiment. Fig. 2 is a cross-sectional view taken along line a-A of Fig. 1. Figure 3 is a plan view of a second embodiment of the motor stator of the present invention. Figure 4 is a cross-sectional view taken along line B-B of Figure 3. Fig. 5 is a plan view showing another form of the motor stator of the present invention. Fig. 6 is a top plan view showing the first embodiment of the mold for manufacturing the motor stator of the present invention. Fig. 7 is a view showing the mold for manufacturing a motor stator of the present invention fixed to a press. Fig. 8 is a top plan view showing a second embodiment of the mold for manufacturing a motor stator of the present invention. The $9 diagram is a step diagram of the method of manufacturing a motor stator of the present invention. Figure 10 is a schematic view showing the first movable mold of the present invention rotated by a fixed angle to move a fixed distance D. Fig. 11 is a view showing the rib width values of the magnetic conductive sheets of the present invention being respectively B. 12 When the movable mold rotates in the reverse direction [Description of main components] Motor stator 2 through hole 11 chamfer 13 upper and lower mold 31, 32 limit groove 312 guide rod 314 through hole 341 first movable mold 35 drive plate 36 Guide groove 371 Transmission 39 Punching 392 Hole 42 Upper mold base 91 Stepping motor 93 200810321 Fig. 12 is a schematic view showing the rib width values of the magnetic conductive sheets of the present invention. · Figure 13 is the figure of the present invention. Figure 0 Magnetic rib rib punch punch limiter punching rib hole hole pallet plate gear set shape punching out brother a movable die punching die holder 10 12 3 311 313 34 342 351 37 38 391 41 9 92 13