200950905 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種粉末冶金成型螺旋齒輪的上 沖加壓自動對位與定位檢測裝置，特別是—種可以 使上沖自動定位與檢測，於加壓過程中自動隨螺旋 導程旋轉加壓，進而保護工作人員安全與模具，並 可生產螺旋角大於22.5度之粉末冶金的螺旋齒輪成 • 型裝置° 【先前技術】 粉末冶金技術是製造精密金屬零件的重要技 術’一般傳統粉末冶金方式係使用沖床加壓方式； 利用上沖、中模、下沖、芯棒等模件所組成的模具， 將金屬粉末加壓形成所需的形狀，其步驟包括：先 將金屬粉末充填入中模的模穴中，以上沖及下沖加 壓成型後利用下沖將成品頂出中模，再經燒結成產 目前利用粉末冶金技術製作螺旋齒輪，係利用 中模模穴之螺旋齒形，將上沖導入而進行旋轉加 壓，上沖退出中模後之定位，係利用定位鋼珠定 位’其定位精度不良，無法檢測上沖定位與否，於 加壓成型時’造成模具損壞與工安問題更是嚴重， 且上沖之旋轉’係利用加壓時進入中模模穴之衝擊 動能’因此’無法成形螺旋角大於22.5度之螺旋齿 200950905 輪，並且對模具之壽命與產品之精度造成重大 影響。 【發明内容】 本發明之一目的在於提供一種粉末冶金成 旋齒輪的上沖加壓自動對位與定位檢測裝置， 定位上沖，使上沖於進入中模模穴前，自動隨 角旋轉，進入中模加壓避免上沖進入中模時， β 位不準及上沖與中模之衝擊動能造成中模受損 本發明之又一目的在於提供一種粉末冶金 螺旋齒輪的裝置，可以定位上沖控制上沖進入 時的角度，可生產螺旋角度大於22.5度之產品 本發明之又一目的在於提供一種粉末冶金 螺旋齒輪的裝置，包括：具有上螺旋齒輪沖模 沖；具有連接沖座的上固定板與成型機沖頭連 浮動板具有導桿、定位螺栓及上沖螺旋導環 ⑩ 模，置於浮動板之下方；以及設於中模下方 沖，且具有下螺旋齒輪沖模，其中上、下螺旋 沖模之直徑相同，且上沖螺旋導環及中模模穴 有螺旋齒輪紋對應該上螺旋齒輪沖模，且孔徑 於螺旋齒輪沖模之直徑，上沖藉由固定於連 座，而上螺旋齒輪沖模經該上沖螺旋導環，由 進入該中模模穴，該下螺旋齒輪沖模由下方進 中模模穴，與上螺旋齒輪沖模於該中模模穴加 屬粉末成型螺旋齒輪產品。 負面 型螺 可以 螺旋 因對 〇 成型 中模 〇 成形 的上 接； ;中 的下 齒輪 皆具 皆等 接沖 上方 入該 壓金 6 200950905 本發明之又一目的在於提供一種螺旋齒輪的上 沖加壓自動對位與定位檢測裝置，更包括：氣壓缸 之裝置或結構，連接上固定板與浮動板；一氣壓調 整裝置，調整氣壓缸之出力；用以控制上沖旋轉與 定位之阻尼，藉以配合不同螺旋角與齒輪外徑之模 具。 本發明之又一目的在於提供一種粉末冶金成形 螺旋齒輪的上沖加壓自動對位與定位檢測裝置，更 G 包括以磁簧開關、電磁開關或光感應開關做為定位 偵測器，確認上沖退出中模後，是否已自動到達定 位，作為機台自動停機保護裝置，防止模具撞擊損 害與工安事故。 【實施方式】 以下係以不同實施例說明本發明，所述之組 成、排列及步驟等，用以說明實施之内容，僅為例 ❿ 示而非用以限制本發明。另外，所揭露之内容中使 用”及/或”是為了簡要；’’覆蓋”或”之上”的敘述， 則可包含該直接接觸以及沒有直接觸等二種。 如圖1所示，係本發明之實施例用以說明本發明 之粉末冶金成形螺旋齒輪的裝置，包括上沖10及定 位模組20的分解示意圖。圖2係本發明之實施例用 以說明粉末冶金成形螺旋齒輪的裝置，包括上沖1 0 及定位模組2 0的組立示意圖。 上沖1 0具有上螺旋齒輪沖模1 1，以及連接於上 200950905 上表大 12之少 座11至 定模度 固沖角 該輪的 且齒輪 2>旋齒 1螺旋 座上螺 定中且 固其， 的。輪 端1齒 一12旋 11孔螺 模定之 沖固設 輪個預 齒數有 旋有具 螺具面 於2 2 · 5度，在本實施例中，以介於2 5度到4 0度之間 為較佳之螺旋歯輪角度。 上固定板21中央位置具有數個固定孔121以及 連接沖座21 1 ’浮動板22具定位螺栓222及更換套件 223。其中定位螺栓222係活動穿設於浮動板22，而 ^ 且更換套件2 2 3的中央部位具有一個上沖螺旋導環 224 ’且上沖螺旋導環224具有與上螺旋齒輪沖模i i 之螺旋齒輪相對應之螺旋齒紋，且上沖螺旋導環 224内側之直徑與上螺旋齒輪沖模丨丨之直徑相同。 上固疋板21與浮動板22係利用一對導桿組221，組 立成為定位模具20，其中該導桿組221包括：一對 導桿2211’每根導桿的一端固定於浮動板22之表 面，另一端則具有導桿定位調整螺帽2 2 1 2及導桿定 © 位固定螺帽22 13，以及一對線性軸承2214,設於固 定板21上相對應於導桿2211的位置，使導桿2211能 穿過線性軸承22 14。而且可藉由調整導桿定位調整 螺帽22 12將上固定板21與浮動板22的距離調整到 所需的大小後，以導桿定位固定螺帽2 2丨3固定導桿 定位調整螺帽2212的位置，進而固定上固定板21與 浮動板22的距離。 如圖2所示’利用固定孔121，將上沖之固定 座12固定於上固定板21之下表面後，上螺旋齒輪 200950905 模1 1由上沖螺旋導環224向下延伸，突出 22之下表面。上固定板21、浮動板22以及 2 1下的定位氣缸2 1 2，皆連接到氣壓缸之 構（圖未示），藉由氣壓調整裝置（圖未 氣壓缸之出力，控制上沖旋轉與定位之阻 配合不同螺旋角與齒輪外徑之模具。且辅 測器（圖未示），在本實施例中為磁簧開 光點4 0輔以用來確認粉末冶金成形螺旋 © 置運作時，上沖10退出中模30後（參見圖 否己自動到達定位，以做為裝置自動停機 置，防止模具撞擊而造成損害及/或公安 外亦可依實際需要，改為光感應開關、電 其他感應裝置。 二端開口的中模模穴32的中模30，置 22之下方，中模模穴32的位置相對於浮動 換套件223的上沖螺旋導環224的下方，且 H 3 2的孔徑以及内側的螺旋齒紋與上沖螺卷 之内徑及螺旋齒紋相同。而且，藉由調整 動板22下表面的定位螺栓222的長度，決 與定位模具20之間的間距。 下沖（圖未示）固定於中模30的下方 直徑與中模模穴3 2的孔徑相同的下螺旋 (圖未示），而且下螺旋齒輪沖模的螺旋 模模穴32的螺旋齒紋相吻合。需注意的是 設計的螺旋齒輪形狀，下沖可以由多個活 於浮動板 上固定板 裝置或結 示）調整 尼，而能 以定位偵 關，利用 齒輪的裝 3 a )，是 的保護裝 事故，另 磁開關或 於浮動板 板22之更 中模模穴 t導環224 突出於浮 定中模3 0 ，且具有 齒輪沖模 齒輪與中 ，依照所 動組件或 9 200950905 套件所組成。 接下來請參考圖3 a〜3 c ’用以說明本發明之粉末 冶金成形螺旋齒輪的裝置’進行粉末冶金的過程。上沖1〇 固定於上固定板21後’利用上固定板21的連接沖座211與 形成機沖頭41相連接。突出於浮動板22之下表面的 上螺旋齒輪沖模11，藉由可上下移動的上固定板21 向下移動，俾利調整上螺旋齒輪沖模丨丨的位置，以 及由上方進入中模模穴32的角度，確認上螺旋齒輪 © 沖模11的位置後’向上移動上固定板21，同步舉起 固定座12，將上螺旋齒輪沖模丨丨帶離中模模穴32, 但此時下螺旋齒輪沖模仍由中模模穴32的下方進 入中模模穴32，並且留在令模模穴32内封住中模模 穴32下方的開口，故下螺旋齒輪沖模與中模模穴32 形成的一容置槽，接著將金屬粉末由中模模穴32上 方之開口填入容置槽中’上螺旋齒輪沖模丨丨於中模 模穴32内形成一空間。上固定板21再次向下移動， Ο 故上螺旋齒輪沖模11依調整後的位置與角度，由中 模模穴32上方的開口進入中模模穴32，與^螺旋齒 輪沖模及中模模穴32形成密閉空間。 上螺旋齒輪沖模11與下螺旋齒輪沖模在中模模 穴32内分別向下及向上移動，壓縮填入中模模穴32 内的金屬粉末，依螺旋齒紋的形狀以及中模模穴32 的孔徑形成所需的螺旋齒輪，接著再次移動上固定板 2卜使上螺旋齒輪沖模U向上退出中 時’下螺旋齒輪沖模持續向上移動，直到將形^ 10 200950905 螺旋齒輪完全推出中模模穴32為止。 上螺旋齒輪沖模1 1預先調整好將進入中模模穴 32的位置與角度後，藉由定位模組20的上固定板21 的上下移動，輔以定位螺栓222固定定位模組20與 中模3 0之間的間距，避免上螺旋齒輪沖模1 1進入中 模模穴32因為位置與角度不佳使中模30受損，或是 因模具撞擊而成造成工安事故。 另外，需說明的是包括上、下螺旋齒輪沖模，具有上 ❹ 沖螺旋導環224以及中模模穴32的更換套件223, 3 1，都可以依照所要設計的螺旋齒輪的直徑粗細及/或 螺紋角度做更換，使用者更可以依照所需的螺旋齒輪長度， 自行決定所需填入的金屬粉末量。 雖然本發明已以較佳實施例揭露如上，然其並 非用以限定本發明，任何熟習此項技藝者，在不脫 離本發之精神和範圍内，可做各種變動、修改及潤 飾，因此本發明之保護管圍當視後附之申請專利範 @ 圍所界定者為準。 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點與 實施例能更明顯易懂，所附圖式之詳細說明如下： 圖1係本發明實施例之粉末冶金成形螺旋齒輪 的上沖加壓自動對位與定位檢測裝置之上沖及定 位模組分解示意圖。 圖2係本發明實施例之粉末冶金成形螺旋齒輪 200950905 的上沖加壓自動對位與定位檢測裝置之上沖及定 位模組組立示意圖。 圖3a〜3c係本發明實施例之粉末冶金成形螺旋 齒輪的上沖加壓自動對位與定位檢測裝置運作示 意圖。 【主要元件符號說明】 10 上沖 ❹ 11 上螺旋齒輪沖模 12 固定座 1 2 1固定孔 20 定位模組 21 上固定板 2 1 1連接沖座 2 1 2 定位氣缸 22 浮動板 φ 221導桿組 2 2 1 1導桿 2212導桿定位調整螺帽 2213導桿定位固定螺帽 2 2 1 4線性軸承 222 定位螺栓 223更換套件 224上沖螺旋導環 30 中模 3 1 更換套件 12 200950905 32 中模模穴 40 光點 4 1 成形機沖頭200950905 IX. INSTRUCTIONS: [Technical Field] The present invention relates to an automatic aligning and aligning and positioning detecting device for a powder metallurgy forming helical gear, in particular, an automatic positioning and detecting of the upper punch During the pressurization process, it automatically rotates and presses with the spiral lead to protect the safety of the workers and the mold, and can produce a powder metallurgy helical gear type device with a helix angle greater than 22.5 degrees. [Prior Art] Powder metallurgy technology is manufacturing precision The important technology of metal parts 'Generally, the traditional powder metallurgy method uses a press press method; the metal powder is pressed to form a desired shape by using a mold composed of a die such as an upper punch, a middle die, a lower punch, and a mandrel. The steps include: first filling the metal powder into the mold cavity of the middle mold, and then punching the finished product out of the middle mold by using the lower punching and the lower punching, and then sintering to produce the spiral gear made by powder metallurgy technology. Using the spiral tooth shape of the middle mold cavity, the upper punch is introduced and rotated and pressurized, and the positioning after the upper punch exits the middle die is determined by Positioning of the steel ball is not good in positioning accuracy, and it is impossible to detect the positioning of the upper punch. In the case of press forming, the mold damage and the safety problem are more serious, and the rotation of the upper punch is used to enter the middle mold cavity when pressurized. The impact kinetic energy 'so' cannot form a helical tooth 200950905 wheel with a helix angle greater than 22.5 degrees and has a significant impact on the life of the mold and the accuracy of the product. SUMMARY OF THE INVENTION One object of the present invention is to provide an automatic aligning and positioning detection device for powder metallurgy forming a rotating gear, which is positioned to rush, so that the upper punch is automatically rotated with the angle before entering the die of the middle die. When the middle mold is pressed to avoid the upper punching into the middle mold, the β position is not allowed and the impact energy of the upper punch and the middle mold is damaged. The other object of the present invention is to provide a powder metallurgy helical gear device which can be positioned. Another object of the present invention is to provide a powder metallurgy helical gear device, comprising: an upper helical gear die punch; and an upper fixed connection with a punching seat for controlling the angle at which the punching is advanced. The plate and the forming machine punch have a floating plate with a guide rod, a positioning bolt and an upper punching spiral guide ring 10, placed under the floating plate; and are arranged under the middle die, and have a lower helical gear die, wherein the upper and lower The diameter of the spiral die is the same, and the spiral ring and the middle die have a spiral gear pattern corresponding to the upper helical gear die, and the aperture is in the helical gear die. The diameter, the upper punch is fixed to the joint, and the upper spiral gear die passes through the upper spiral guide ring, and enters the middle mold cavity, the lower spiral gear die enters the middle mold cavity from below, and the upper spiral gear die The medium mold cavity is a powder molded helical gear product. The negative type screw can be screwed up by the upper part of the forming of the middle mold; the lower gears of the middle are equally flushed into the press gold 6 200950905 Another object of the present invention is to provide an upper punch of a helical gear The pressure automatic alignment and positioning detecting device further comprises: a device or a structure of a pneumatic cylinder, which is connected with a fixed plate and a floating plate; a gas pressure adjusting device adjusts the output of the pneumatic cylinder; and is used for controlling the damping of the rotation and positioning of the upper punch, thereby A mold that matches different helix angles and outer diameters of the gears. Another object of the present invention is to provide an upper aligning and pressure automatic aligning and positioning detecting device for a powder metallurgy forming helical gear, and further comprising a reed switch, an electromagnetic switch or a light sensing switch as a position detecting device, confirming After rushing out of the middle mold, whether it has reached the positioning automatically, as a machine automatic shutdown protection device to prevent mold impact damage and industrial safety accidents. The present invention is described in the following examples, which are intended to be illustrative, and not to limit the invention. In addition, the use of "and/or" in the disclosed content is for the sake of brevity; the description of ''covering' or 'above') may include the direct contact and the absence of direct contact, etc. As shown in FIG. The embodiment of the present invention is used to illustrate the apparatus for powder metallurgy forming helical gear of the present invention, including an exploded view of the upper punch 10 and the positioning module 20. Fig. 2 is a schematic diagram of an embodiment of the present invention for explaining a powder metallurgy forming helical gear The upper punch 1 0 has an upper helical gear die 1 1 and is connected to the upper 200950905 upper table 12 small seat 11 to fixed modulus solid angle. And the gear 2> the spiral tooth 1 is screwed and fixed in the screw seat. The wheel end 1 tooth is 12 turns 11 hole screw mold fixed to set the wheel pre-tooth number has a screw surface with 2 2 · 5 degrees, in the present embodiment, the preferred spiral wheel angle is between 25 degrees and 40 degrees. The upper fixing plate 21 has a plurality of fixing holes 121 at the center position and the connecting punch 21 1 'floating plate 22 positioning bolts 222 and replacement kit 223. The plug 222 is movably disposed on the floating plate 22, and the central portion of the replacement kit 2 2 3 has an upper punching spiral guide ring 224 ′ and the upper punching spiral guide ring 224 has a helical gear corresponding to the upper helical gear die ii The spiral tooth has a diameter inside the upper spiral guide ring 224 which is the same as the diameter of the upper helical gear die 。. The upper solid plate 21 and the floating plate 22 are assembled into a positioning die 20 by using a pair of guide rod sets 221, The guide rod set 221 includes: a pair of guide rods 2211'. One end of each guide rod is fixed on the surface of the floating plate 22, and the other end has a guide rod positioning adjustment nut 2 2 1 2 and a guide rod fixed position fixing screw The cap 22 13 and a pair of linear bearings 2214 are disposed on the fixing plate 21 corresponding to the position of the guiding rod 2211, so that the guiding rod 2211 can pass through the linear bearing 22 14 . Moreover, the adjusting nut 22 can be adjusted by adjusting the guiding rod. 12 After the distance between the upper fixing plate 21 and the floating plate 22 is adjusted to a desired size, the position of the guide rod positioning adjustment nut 2212 is fixed by the guide rod positioning fixing nut 2 2丨3, thereby fixing the upper fixing plate 21 and floating. The distance of the board 22. As shown in Figure 2 After the fixing portion 12 of the upper punching plate is fixed to the lower surface of the upper fixing plate 21, the upper helical gear 200950905 is extended downward from the upper spiral guiding ring 224 to protrude from the lower surface of the upper fixing plate 21. The floating plate 22 and the positioning cylinder 2 1 2 under the 2 1 are all connected to the structure of the pneumatic cylinder (not shown), and the air pressure adjusting device (the power of the air cylinder is not controlled, the control of the upper punch rotation and the positioning is different) a mold with a helix angle and an outer diameter of the gear, and an auxiliary detector (not shown), which in this embodiment is a reed point of the reed 40 for confirming the operation of the powder metallurgy forming screw, the upper punch 10 exits After the mold 30 (see the figure, it has automatically reached the positioning, as the device automatically stops, to prevent damage caused by the mold impact and / or public security can also be changed to light sensor switch, electric other sensor device according to actual needs. The middle mold 30 of the two-end open middle mold cavity 32 is disposed below the lower mold half, and the middle mold cavity 32 is positioned below the upper punched spiral guide ring 224 of the floating changer 223, and the aperture and inner side of the H 3 2 The spiral tooth pattern is the same as the inner diameter of the upper punch and the spiral tooth. Moreover, the distance between the positioning molds 20 is determined by adjusting the length of the positioning bolts 222 on the lower surface of the movable plate 22. The undershoot (not shown) is fixed to a lower helix (not shown) having a diameter lower than that of the middle die cavity 32, and the spiral tooth phase of the spiral die cavity 32 of the lower helical gear die. Match. It should be noted that the design of the helical gear shape, the undershoot can be adjusted by a plurality of fixed plate devices or the display on the floating plate, and can be used for positioning detection, using gears 3 a), is the protective device In the event of an accident, the magnetic switch or the more intermediate die t-guide ring 224 of the floating plate 22 protrudes from the floating intermediate die 30 and has a gear die gear and medium, which is composed according to the moving component or the 9 200950905 kit. Next, please refer to Figs. 3a to 3c' to describe the process of powder metallurgy of the apparatus for powder metallurgy forming helical gear of the present invention. The upper punch 1 is fixed to the upper fixing plate 21, and the connecting punch 211 of the upper fixing plate 21 is connected to the forming machine punch 41. The upper helical gear die 11 protruding from the lower surface of the floating plate 22 is moved downward by the upper fixing plate 21 which can be moved up and down, thereby adjusting the position of the upper helical gear die and the upper die cavity 32 from above. The angle of the upper helical gear © confirms the position of the die 11 and then moves the upper fixed plate 21 upward, synchronously lifts the fixed seat 12, and carries the upper helical gear die away from the middle die cavity 32, but at this time, the lower helical gear die Still entering the middle mold cavity 32 from below the middle mold cavity 32, and leaving the opening below the middle mold cavity 32 in the mold cavity 32, the lower spiral gear die and the middle die cavity 32 are formed. The groove is accommodated, and then the metal powder is filled into the accommodating groove from the opening above the die cavity 32. The upper spiral gear die is formed in the middle die cavity 32 to form a space. The upper fixing plate 21 is moved downward again, so that the upper helical gear die 11 enters the middle die cavity 32 from the opening above the middle die cavity 32 according to the adjusted position and angle, and the helical gear die and the middle die cavity 32 forms a confined space. The upper helical gear die 11 and the lower helical gear die move downwardly and upwardly in the middle die cavity 32, respectively, and compress the metal powder filled in the middle die cavity 32, according to the shape of the spiral tooth and the middle die cavity 32. The aperture forms the required helical gear, and then moves the upper fixed plate 2 again to make the upper helical gear die U move upwards. The lower helical gear die continues to move upward until the shape of the 10 10 200950905 helical gear is fully pushed out of the intermediate die cavity 32. until. After the upper helical gear die 1 is pre-adjusted to enter the position and angle of the middle die cavity 32, the upper and lower movements of the upper fixing plate 21 of the positioning module 20 are supplemented by the positioning bolts 222 to fix the positioning module 20 and the middle die. The spacing between 30 and 10 prevents the upper helical gear die 11 from entering the middle die cavity 32 because the position and angle are not good, the middle die 30 is damaged, or the workmanship accident is caused by the impact of the die. In addition, it should be noted that the upper and lower helical gear dies, the replacement kits 223, 311 having the upper boring spiral guide ring 224 and the middle mold cavity 32 can be sized according to the diameter of the helical gear to be designed and/or The angle of the thread is replaced, and the user can determine the amount of metal powder to be filled according to the required helical gear length. While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and various modifications, changes and modifications may be made without departing from the spirit and scope of the invention. The protection of the invention shall be subject to the definition of the patent application form enclosed by the company. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; The upper punching and pressing automatic alignment and positioning detection device overshoot and positioning module decomposition diagram. Fig. 2 is a schematic view showing the assembly of the upper punching and pressing detection device of the powder metallurgy forming helical gear 200950905 according to the embodiment of the present invention. 3a to 3c are schematic views showing the operation of the upper urging automatic alignment and positioning detecting device of the powder metallurgy forming helical gear according to the embodiment of the present invention. [Main component symbol description] 10 Upper punching 11 Upper helical gear die 12 Fixing seat 1 2 1 Fixing hole 20 Positioning module 21 Upper fixing plate 2 1 1 Connecting punch 2 1 2 Positioning cylinder 22 Floating plate φ 221 Guide group 2 2 1 1 guide rod 2212 guide rod positioning adjustment nut 2213 guide rod positioning fixing nut 2 2 1 4 linear bearing 222 positioning bolt 223 replacement kit 224 upper spiral guide ring 30 medium mold 3 1 replacement kit 12 200950905 32 medium mold Mould 40 Spot 4 1 Forming Machine Punch
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