TWI604905B - Machining device with auxiliary electric discharge for hard-to-cut material - Google Patents
Machining device with auxiliary electric discharge for hard-to-cut material Download PDFInfo
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- TWI604905B TWI604905B TW105136040A TW105136040A TWI604905B TW I604905 B TWI604905 B TW I604905B TW 105136040 A TW105136040 A TW 105136040A TW 105136040 A TW105136040 A TW 105136040A TW I604905 B TWI604905 B TW I604905B
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Description
本發明係有關一種難加工材料之放電輔助切削加工裝置，尤指一種兼具設備成本較低、可應用於銑削加工延長刀具部壽命，與耗材式設計可不用更換整個旋轉軸之難加工材料之放電輔助切削加工裝置。The invention relates to a discharge assisted cutting processing device for a difficult-to-machine material, in particular to a hard-working material which has the advantages of low equipment cost, can be applied to milling to extend the life of the tool part, and the consumable design can replace the entire rotating shaft. Discharge assisted cutting equipment.
傳統之難加工材料很多，通常在常溫時，其機械強度極高。但若將其加熱，則其機械強度逐漸下降，特別是加熱至攝氏600度以上時，則其機械強度(單位N/mm 2)會明顯下降。如第8圖所示，分別舉四例來說明，圖中之第一曲線L1、第二曲線L2、第三曲線L3及第四曲線L4分別為鎳鉻鉬合金鋼(Ni-Cr-Mo Steel)、718鎳合金(Inconel 718)、鈦鋁釩合金(Ti6Al4V)及鈷合金(Stallite 6 Co-Alloy)，在不同溫度下之機械強度曲線。舉例而言，718鎳合金在攝氏600度以內時，其機械強度都在1000N/mm 2以上，但一旦加熱超過攝氏800度，則降至500 N/mm 2以下，相當於降低50%以上。因此，將難加工材料先加熱再來加工(此指車切、銑削之類的接觸式加工)，是合理之處理方式。上述之難加工材料常應用於航太産業之組件，例如；渦輪葉片等。 傳統之加工時輔助加熱之方式很多，如第9圖所示，此為雷射輔助加熱之車削裝置，當轉動式工件81旋轉，刀具部82進刀時，設有兩組雷射加溫裝置83A與83B，該雷射加溫裝置83A是將雷射831打在即將進行加工之外表面811，該雷射加溫裝置83B則是將雷射832打在即將進行加工之環狀側表面812，換言之，利用雷射之能量來加熱該旋轉式工件81，使該旋轉式工件81之機械強度下降而較易被切除。然而，此傳統方式之缺點在於高能量之雷射加工設備價格極昂貴，且當加工方式改為銑削加工裝置70對工件90時(參閱第10及第11圖)，雷射光易被銑削刀具71及飛散的加工屑擋住(如第12圖所示) 尤其是加工時如果使用加工液84(如第13圖所示)則雷射光更容易被加工液干擾散射而無法聚焦加熱，而且，銑削刀具與雷射加工設備無法整合在一起。 有鑑於此，必需研發出可解決上述習用缺點之技術。 Traditionally, there are many materials that are difficult to process, and the mechanical strength is usually extremely high at normal temperature. However, if it is heated, its mechanical strength gradually decreases, and in particular, when it is heated to 600 ° C or higher, its mechanical strength (unit: N/mm 2 ) is remarkably lowered. As shown in Fig. 8, four examples are respectively illustrated. The first curve L1, the second curve L2, the third curve L3, and the fourth curve L4 in the figure are respectively nickel-chromium-molybdenum alloy steel (Ni-Cr-Mo Steel). ), 718 nickel alloy (Inconel 718), titanium aluminum vanadium alloy (Ti6Al4V) and cobalt alloy (Stallite 6 Co-Alloy), mechanical strength curves at different temperatures. For example, when the 718 nickel alloy is within 600 degrees Celsius, its mechanical strength is above 1000 N/mm 2 , but once it is heated above 800 ° C, it falls below 500 N/mm 2 , which is equivalent to a reduction of 50% or more. Therefore, it is a reasonable treatment to heat the difficult-to-machine materials and then process them (this refers to contact processing such as turning and milling). The above-mentioned difficult-to-machine materials are often used in components of the aerospace industry, such as turbine blades. There are many ways to assist the heating in the conventional processing. As shown in Fig. 9, this is a laser-assisted heating turning device. When the rotary workpiece 81 rotates and the cutter portion 82 enters the cutter, two sets of laser heating devices are provided. 83A and 83B, the laser warming device 83A hits the laser 831 on the surface 811 to be processed, and the laser warming device 83B hits the laser 832 on the annular side surface 812 to be processed. In other words, the energy of the laser is used to heat the rotary workpiece 81, so that the mechanical strength of the rotary workpiece 81 is lowered and it is easier to cut. However, the disadvantage of this conventional method is that the high-energy laser processing equipment is extremely expensive, and when the machining method is changed to the milling machine 70 to the workpiece 90 (see FIGS. 10 and 11), the laser light is easily milled by the cutter 71. And the scattered machining debris is blocked (as shown in Fig. 12). Especially if the machining fluid 84 is used during machining (as shown in Fig. 13), the laser light is more easily interfered by the machining fluid and cannot be focused and heated, and the milling tool Cannot be integrated with laser processing equipment. In view of this, it is necessary to develop a technique that can solve the above disadvantages.
本發明之目的，在於提供一種難加工材料之放電輔助切削加工裝置，其兼具設備成本較低、切削加工延長刀具部壽命，與耗材式設計可不用更換整個旋轉軸等優點。特別是，本發明所欲解決之問題係在於此傳統方式之缺點在於高能量之雷射加工設備價格極昂貴，且當加工方式改為銑削加工時，雷射光易被銑削刀具、加工屑及加工液擋住，而且，銑削刀具與雷射加工設備無法整合在一起等問題。 解決上述問題之技術手段係提供一種難加工材料之放電輔助切削加工裝置，其包括： 一旋轉軸部，係具有一旋轉軸、至少一刀具固定裝置、一導電接觸裝置、一驅動源及一導流結構；該旋轉軸具有一第一端、一第二端及一旋轉軸線，該至少一刀具固定裝置係設於該第一端；該驅動源係連接該第二端，用以驅動該旋轉軸部旋轉，該導流結構係貫穿而設於該旋轉軸內，並具有一流體供入通道及至少一流體排出通道；該流體供入通道係供一工作流體流入，該至少一流體排出通道係供該工作流體朝該導電件與鄰近之一工件之間排出，而可提供放電加熱所需之流體及促進加工効率； 至少一刀具部，係設於該至少一刀具固定裝置上，該每一刀具部係具有一刀刃，其與該旋轉軸線間之距離被定義為一刀刃半徑，且該刀刃進行切削加工時具有一進刀量； 至少一導電部，該每一導電部係包括一導電件及一絕緣件，該導電件具有一工作端面，其與該旋轉軸線間之距離被定義為一工作半徑，該刀刃半徑減去該工作半徑等於一工作間隙；該導電件之設置位置，係選自該刀具部旋轉方向之前、該刀具部的旋轉方向之後、該流體排出通道內其中至少一者； 當設於該刀具部的旋轉方向之前，該絕緣件係介於該導電件與該刀具部之間，且該工作間隙係大於該進刀量； 當設於該刀具部的旋轉方向之後，該絕緣件係設至少兩個，其中之一介於該刀具部與該導電件之間，其中之另一介於該導電件與該刀具固定裝置之間； 當設於該流體排出通道內，該絕緣件係介於該導電件與該流體排出通道之間； 一中央控制部，係具有一放電裝置、一進刀控制裝置、一轉速控制裝置及一流體控制裝置；該放電裝置係用以電性連結該導電接觸裝置及該工件；該進刀控制裝置係連結於該工件，用以控制該工件移動，進而控制該刀刃對該工件進行切削加工時之該進刀量；該轉速控制裝置係電性連結該驅動源，用以控制該旋轉軸之轉速；該流體控制裝置係連結該導流結構，用以控制該工作流體供入該流體供入通道之流速； 藉此，當該放電裝置對該導電接觸裝置及該工件供應放電能量，該導電件與鄰近之該工件之間產生放電，進而能對該工件局部加熱。 本發明之上述目的與優點，不難從下述所選用實施例之詳細說明與附圖中，獲得深入瞭解。 茲以下列實施例並配合圖式詳細說明本發明於後：It is an object of the present invention to provide a discharge assisted cutting apparatus for a difficult-to-machine material, which has the advantages of low equipment cost, prolonged tool life of the cutting process, and the need to replace the entire rotating shaft with the consumable design. In particular, the problem to be solved by the present invention is that the disadvantage of this conventional method is that the high-energy laser processing equipment is extremely expensive, and when the processing method is changed to milling, the laser light is easily milled, processed, and processed. The liquid is blocked, and the problem that the milling tool cannot be integrated with the laser processing equipment. The technical means for solving the above problems is to provide a discharge assisted cutting device for difficult-to-machine materials, comprising: a rotating shaft portion having a rotating shaft, at least one tool fixing device, a conductive contact device, a driving source and a guide a rotating structure having a first end, a second end and an axis of rotation, the at least one tool fixing device being disposed at the first end; the driving source being coupled to the second end for driving the rotation The shaft portion rotates, the flow guiding structure is disposed in the rotating shaft, and has a fluid supply passage and at least one fluid discharge passage; the fluid supply passage is for a working fluid to flow in, the at least one fluid discharge passage Providing the working fluid to discharge between the conductive member and an adjacent workpiece, and providing fluid required for discharge heating and promoting processing efficiency; at least one cutter portion is disposed on the at least one tool fixing device, each of A cutter portion has a cutting edge, the distance from the axis of rotation is defined as a cutting edge radius, and the cutting edge has a cutting amount when cutting; at least one guide Each of the conductive portions includes a conductive member and an insulating member, the conductive member having a working end surface, the distance from the axis of rotation being defined as a working radius, the blade radius minus the working radius being equal to one a working gap; the conductive member is disposed at least one of the fluid discharge passages before the rotation direction of the cutter portion, the rotation direction of the cutter portion, and the rotation direction of the cutter portion The insulating member is interposed between the conductive member and the cutter portion, and the working gap is greater than the feed amount; when disposed in the rotating direction of the cutter portion, the insulating member is provided with at least two, one of which is Between the tool portion and the conductive member, the other of which is interposed between the conductive member and the tool fixing device; when disposed in the fluid discharge passage, the insulating member is interposed between the conductive member and the fluid discharge passage a central control unit having a discharge device, a feed control device, a rotational speed control device, and a fluid control device; the discharge device is configured to electrically connect the conductive device a touch device and the workpiece; the feed control device is coupled to the workpiece for controlling the movement of the workpiece, and thereby controlling the amount of the cutter when the blade is cut into the workpiece; the rotation speed control device is electrically connected to the workpiece a driving source for controlling the rotation speed of the rotating shaft; the fluid control device is coupled to the flow guiding structure for controlling a flow rate of the working fluid supplied to the fluid supply passage; thereby, when the discharging device contacts the conductive The device and the workpiece supply discharge energy, and a discharge is generated between the conductive member and the adjacent workpiece, thereby locally heating the workpiece. The above objects and advantages of the present invention will be readily understood from the following detailed description of the preferred embodiments illustrated herein. The invention will be described in detail in the following examples in conjunction with the drawings:
參閱第1、第2A、第2B、第2C、第3、第4及第5圖，本發明係為一難加工材料之放電輔助切削加工裝置，其包括一旋轉軸部10、至少一刀具部20、至少一導電部30及一中央控制部40。 關於該旋轉軸部10，係具有一旋轉軸11、至少一刀具固定裝置12、一導電接觸裝置13、一驅動源14及一導流結構15。該旋轉軸11具有一第一端111、一第二端112及一旋轉軸線113，該至少一刀具固定裝置12係設於該第一端111；該驅動源14係連接該第二端112，用以驅動該旋轉軸部10旋轉。該導流結構15係貫穿而設於該旋轉軸10內，並具有一流體供入通道151及至少一流體排出通道152；該流體供入通道151係供一工作流體15A流入，該至少一流體排出通道152係供該工作流體15A朝該導電部30與鄰近之一工件90之間排出，而可提供放電加熱(或加工)所需之流體及促進加工効率。 關於該至少一刀具部20，係設於該至少一刀具固定裝置12上，該每一刀具部20係具有一刀刃21，其與該旋轉軸線113間之距離被定義為一刀刃半徑R1，且該刀刃21進行切削加工時具有一進刀量D； 關於該至少一導電部30，該每一導電部30係包括一導電件31及一絕緣件32，該導電件31具有一工作端面311，其與該旋轉軸線113間之距離被定義為一工作半徑R2，該刀刃半徑R1減去該工作半徑R2等於一工作間隙H；該導電件31之設置位置，係選自該刀具部20旋轉方向之前、該刀具部20的旋轉方向之後、該流體排出通道152內其中至少一者； 當設於該刀具部20的旋轉方向之前，該絕緣件32係介於該導電件31與該刀具部20之間，且該工作間隙H係大於該進刀量D； 當設於該刀具部20的旋轉方向之後，該絕緣件32係設至少兩個，其中之一介於該刀具部20與該導電件31之間，其中之另一介於該導電件31與該刀具固定裝置12之間； 當設於該流體排出通道152內(參閱第2C、第2D及第2E圖，且第2C圖中之該導電部30係予省略未示，合先陳明)，該絕緣件32係介於該導電件31與該流體排出通道152之間。 關於該中央控制部40，係具有一放電裝置41、一進刀控制裝置42、一轉速控制裝置43及一流體控制裝置44；該放電裝置41係用以電性連結該導電接觸裝置13及該工件90；該進刀控制裝置42係連結於該工件90，用以控制該工件90移動，進而控制該刀刃21對該工件90進行切削加工時之該進刀量D；該轉速控制裝置43係電性連結該驅動源14，用以控制該旋轉軸11之轉速；該流體控制裝置44係連結該導流結構15，用以控制該工作流體15A供入該流體供入通道151之流速。 藉此，當該放電裝置41對該導電接觸裝置13及該工件90供應放電能量，該放電能量係由數十伏特至數十千伏特之加工電壓，與數安培至數百安培之加工電流組成，則該導電件31與鄰近之該工件90之間產生放電，進而能對該工件90局部加熱(或加工)。 實務上，該導電接觸裝置13可為導電體組合結構。該放電裝置41對應該導電組合體結構，可為電刷結構，用以與該導電組合體結構組成轉動接觸之導電裝置。 該工作流體15A可為氮氣、氧氣、氦氣、氬氣、空氣等之氣體，或水、太古油、煤油等之液體或其中至少一者之流體所組成。 該導電件31係具有一導電座31A、一固定孔31B、一導電桿31C及複數個通孔31D。該導電座31A係設於相對應之該流體排出通道152內，並連通外界，該絕緣件32係介於該導電件31與該流體排出通道152之間，該固定孔31B係穿設於該導電座31A，供該導電桿31C(螺鎖)固定於該導電座31A，該複數個通孔31D係分別沿該固定孔31B的方向，穿設於該導電座31A，供該工作流體15A朝該導電件31與鄰近之該工件90之間排出。 該刀具部20可為矩形(參閱第7A圖)、三角形(參閱第7B圖)其中一者(或是多邊形)。 為了促進加熱（或加工）的效果，也可増加該工作端面311的加熱範圍。 該進刀控制裝置42可為線性馬達。 該工作間隙H(亦即第4圖之刀刃半徑R1減去工作半徑R2)係介於數十μm至十數mm之間。 在此要特別說明的部分是，傳統之難加工材料很多，通常在常溫時，其機械強度極高。但若將其加熱，則其機械強度逐漸下降，特別是加熱至攝氏600度以上時，則其機械強度(單位N/mm 2)會明顯下降，較便於進行(銑削)加工。 本發明針對這個部分，於鄰近該刀刃21之切削路徑上，設置該導電部30，而可在切削過程中，對該工件90進行加熱，該導電部30具有下列四種設置型態： [a] 設於上游型態：當該導電部30設於該刀刃21的旋轉方向之前(亦即該刀刃21之上游)，該旋轉軸部10可為三刀刃型，即每旋轉1/3圈即有該刀刃21出現。對該工件90上之某一切削點而言，每當該刀刃21靠近時，相對較上游的該導電部30會先抵達，此時，等於是先對即將切削的區域進行放電加熱(或加工)，只要該放電裝置41施加的放電能量夠大，即將切削的區域則可被加熱至所需之溫度(例如攝式600度以上)，由於該旋轉軸部10是不斷旋轉，所以對該工件90之加熱過程是一直重覆(持續)。 [b] 設於下游型態：當該導電部30設於該刀刃21的旋轉方向之後(例如第5及第6圖所示，亦即該刀刃21之下游)，該旋轉軸部10可為三刃型，即每旋轉1/3圈即有該刀刃21出現。對該工件90上之某一切削點而言，每當該刀刃21靠近時，相對較下游的該導電部30會在該刀刃21之後才抵達，然而，只要該放電裝置41施加的放電能量夠大，被切削過的區域即可被加熱(或加工)至所需之溫度(例如攝式600度以上)。由於該旋轉軸部10是不斷旋轉，此切削過的區域即是下一該刀刃21要切削的地方，所以同樣可達到前述上遊型態之相同功效及結果。 [c] 設於流體排出通道內型態：當設於該流體排出通道152內，係鄰近該刀刃21，同理，只要該放電裝置41施加的放電能量夠大，被切削過的區域即可被加熱(或加工)至所需之溫度(例如攝式600度以上)。由於該旋轉軸部10是不斷旋轉，同樣可達到前述型態之相同功效及結果，且該導流結構15可將工作流體15A排入該導電部21與鄰近之該工件90之間，而可提供放電加熱(或加工)所需之流體及促進加工効率。 [d] 混合型態：即同時設在上游、下游及流體排出通道內之型態，原理同前(恕不贅述)，但效果更佳。 本發明之使用範圍，可包括下銑之加工範圍。 本發明之優點及功效： [1] 設備成本較低。本發明於每一刀具部之前、之後，以及鄰近刀具部的位置，都可設置導電部，只要分別供電給導電部與工件，即可達成以導電部與工件之間形成放電，而提高工件將被切削之位置的溫度，使其結構強度下降而便於加工，而導電部可選用任何低價之可導電之結構材質，成本比雷射加熱之設備低。故，設備成本低。 [2] 切削加工延長刀具部壽命。本發明之導電部係與刀具部相鄰而設，並非朝工件與刀具部之間照射雷射光，可革除雷射光被切削刀具部、加工液及加工屑擋住的問題，因降低工件之結構強度，可減少刀具部損耗，而能延長刀具部壽命。故，切削加工延長刀具部壽命。 [3] 耗材式設計可不用更換整個旋轉軸。本發明之導電部及刀具部均為可拆裝之耗材式設計，一旦有損耗(例如導電部導電性變差、刀具部鈍化)，只要個別更換有損耗的導電部或是刀具部即可，並不用將整個旋轉軸完全更換(成本較高)。故，耗材式設計可不用更換整個旋轉軸。 以上僅是藉由較佳實施例詳細說明本發明，對於該實施例所做的任何簡單修改與變化，皆不脫離本發明之精神與範圍。 Referring to the first, second, second, second, second, third, fourth, and fifth figures, the present invention is a discharge assisted cutting apparatus for a difficult-to-machine material, comprising a rotating shaft portion 10 and at least one cutter portion 20 At least one conductive portion 30 and a central control portion 40. The rotating shaft portion 10 has a rotating shaft 11, at least one tool fixing device 12, a conductive contact device 13, a driving source 14, and a flow guiding structure 15. The rotating shaft 11 has a first end 111, a second end 112 and an axis of rotation 113. The at least one tool fixing device 12 is disposed at the first end 111. The driving source 14 is connected to the second end 112. It is used to drive the rotating shaft portion 10 to rotate. The flow guiding structure 15 is disposed in the rotating shaft 10 and has a fluid supply passage 151 and at least one fluid discharge passage 152. The fluid supply passage 151 is for a working fluid 15A to flow into the at least one fluid. The discharge passage 152 is for discharging the working fluid 15A between the conductive portion 30 and an adjacent workpiece 90, and can provide fluid required for discharge heating (or processing) and promote processing efficiency. The at least one cutter portion 20 is disposed on the at least one tool fixture 12, each cutter portion 20 having a cutting edge 21, the distance from the rotation axis 113 being defined as a cutting edge radius R1, and The cutting edge 21 has a cutting amount D during the cutting process. Each of the conductive portions 30 includes a conductive member 31 and an insulating member 32. The conductive member 31 has a working end surface 311. The distance from the axis of rotation 113 is defined as a working radius R2. The blade radius R1 minus the working radius R2 is equal to a working gap H; the position of the conductive member 31 is selected from the rotation direction of the tool portion 20. Before, after the rotation direction of the cutter portion 20, at least one of the fluid discharge passages 152; the insulating member 32 is interposed between the conductive member 31 and the cutter portion 20 before being disposed in the rotation direction of the cutter portion 20. And the working gap H is greater than the feeding amount D; after being disposed in the rotating direction of the cutter portion 20, the insulating member 32 is provided with at least two, one of which is interposed between the cutter portion 20 and the conductive member Between 31, the other one is between Between the electrical component 31 and the tool fixture 12; and disposed in the fluid discharge channel 152 (see FIGS. 2C, 2D, and 2E, and the conductive portion 30 in FIG. 2C is omitted, It is noted that the insulating member 32 is interposed between the conductive member 31 and the fluid discharge passage 152. The central control unit 40 has a discharge device 41, an infeed control device 42, a rotational speed control device 43 and a fluid control device 44; the discharge device 41 is for electrically connecting the conductive contact device 13 and the a workpiece 90; the feed control device 42 is coupled to the workpiece 90 for controlling movement of the workpiece 90, and further controlling the feed amount D when the cutting edge 21 performs cutting on the workpiece 90; the rotation speed control device 43 is The driving source 14 is electrically connected to control the rotation speed of the rotating shaft 11; the fluid control device 44 is coupled to the flow guiding structure 15 for controlling the flow rate of the working fluid 15A to the fluid supply passage 151. Thereby, when the discharge device 41 supplies the discharge energy to the conductive contact device 13 and the workpiece 90, the discharge energy is composed of a processing voltage of several tens of volts to several tens of kilovolts, and a processing current of several amperes to several hundred amperes. Then, a discharge is generated between the conductive member 31 and the adjacent workpiece 90, and the workpiece 90 can be locally heated (or processed). In practice, the conductive contact device 13 can be an electrical conductor combination structure. The discharge device 41 corresponds to the conductive assembly structure, and may be a brush structure for conducting a conductive contact with the conductive assembly structure in rotational contact. The working fluid 15A may be a gas of nitrogen, oxygen, helium, argon, air, or the like, or a liquid of water, Taikoo oil, kerosene, or the like, or a fluid of at least one of them. The conductive member 31 has a conductive seat 31A, a fixing hole 31B, a conductive rod 31C and a plurality of through holes 31D. The conductive seat 31A is disposed in the corresponding fluid discharge passage 152 and communicates with the outside. The insulating member 32 is interposed between the conductive member 31 and the fluid discharge passage 152. The fixing hole 31B is bored therein. The conductive seat 31A is fixed to the conductive seat 31A by the conductive rod 31C. The plurality of through holes 31D are respectively disposed in the conductive seat 31A along the direction of the fixing hole 31B, and the working fluid 15A is directed to The conductive member 31 is discharged between the workpiece 90 and the workpiece 90 adjacent thereto. The cutter portion 20 may be one of a rectangular shape (see FIG. 7A) and a triangular shape (see FIG. 7B) (or a polygonal shape). In order to promote the effect of heating (or processing), the heating range of the working end face 311 may also be added. The feed control device 42 can be a linear motor. The working gap H (i.e., the blade radius R1 of Fig. 4 minus the working radius R2) is between several tens of μm and ten tens of mm. What is particularly pointed out here is that there are many materials that are difficult to process in the conventional art, and the mechanical strength is usually extremely high at normal temperature. However, if it is heated, its mechanical strength gradually decreases. Especially when it is heated to above 600 degrees Celsius, its mechanical strength (unit: N/mm 2 ) is significantly lowered, making it easier to perform (milling) processing. The present invention is directed to this portion, the conductive portion 30 is disposed on a cutting path adjacent to the cutting edge 21, and the workpiece 90 can be heated during the cutting process. The conductive portion 30 has the following four types of settings: [a The upstream type: when the conductive portion 30 is disposed in the rotation direction of the blade 21 (that is, upstream of the blade 21), the rotating shaft portion 10 can be a three-blade type, that is, 1/3 turn per rotation. This blade 21 appears. For a certain cutting point on the workpiece 90, each time the cutting edge 21 approaches, the relatively upstream conductive portion 30 will arrive first. At this time, it is equal to first discharging the heating (or processing) of the area to be cut. As long as the discharge energy applied by the discharge device 41 is large enough, the area to be cut can be heated to a desired temperature (for example, 600 degrees or more), since the rotating shaft portion 10 is continuously rotated, the workpiece is rotated. The heating process of 90 is repeated (continuous). [b] is disposed in a downstream mode: after the conductive portion 30 is disposed in the rotation direction of the blade 21 (for example, as shown in FIGS. 5 and 6, that is, downstream of the blade 21), the rotating shaft portion 10 may be The three-blade type, that is, the blade 21 appears every 1/3 turn. For a certain cutting point on the workpiece 90, the relatively downstream conductive portion 30 will arrive after the cutting edge 21 each time the cutting edge 21 approaches, however, as long as the discharging energy applied by the discharge device 41 is sufficient Large, cut areas can be heated (or machined) to the desired temperature (eg, above 600 degrees). Since the rotating shaft portion 10 is continuously rotated, the cut region is the place where the next cutting edge 21 is to be cut, so that the same effects and results of the aforementioned upstream type can be achieved. [c] is disposed in the fluid discharge passage type: when disposed in the fluid discharge passage 152, adjacent to the cutting edge 21, similarly, as long as the discharge energy applied by the discharge device 41 is large enough, the cut region can be It is heated (or processed) to the desired temperature (for example, above 600 degrees). Since the rotating shaft portion 10 is continuously rotated, the same effect and result of the foregoing type can be achieved, and the guiding structure 15 can discharge the working fluid 15A between the conductive portion 21 and the adjacent workpiece 90, but Provides the fluid required for discharge heating (or processing) and promotes processing efficiency. [d] Mixed type: the type of the upstream, downstream and fluid discharge channels, the principle is the same as before (undescribed), but the effect is better. The scope of use of the present invention may include the processing range of down milling. Advantages and effects of the present invention: [1] The equipment cost is low. The present invention can be provided with a conductive portion before, after, and adjacent to the tool portion. As long as power is supplied to the conductive portion and the workpiece respectively, a discharge is formed between the conductive portion and the workpiece, and the workpiece is improved. The temperature at the position to be cut makes the structural strength drop and is easy to process, and the conductive portion can be selected from any low-cost electrically conductive structural material, and the cost is lower than that of the laser heating device. Therefore, the equipment cost is low. [2] Cutting increases tool life. The conductive portion of the present invention is disposed adjacent to the cutter portion, and does not irradiate the laser light between the workpiece and the cutter portion, thereby eliminating the problem that the laser light is blocked by the cutting tool portion, the machining fluid, and the machining waste, thereby reducing the structural strength of the workpiece. It can reduce the loss of the tool part and prolong the life of the tool part. Therefore, the cutting process extends the life of the tool portion. [3] Consumable design eliminates the need to replace the entire rotating shaft. The conductive portion and the cutter portion of the present invention are both detachable consumable design, and if there is loss (for example, the conductivity of the conductive portion is deteriorated and the cutter portion is passivated), the lossy conductive portion or the cutter portion may be replaced individually. It is not necessary to completely replace the entire rotating shaft (higher cost). Therefore, the consumable design eliminates the need to replace the entire rotating shaft. The present invention has been described in detail with reference to the preferred embodiments of the present invention, without departing from the spirit and scope of the invention.
10‧‧‧旋轉軸部10‧‧‧Rotary shaft
11‧‧‧旋轉軸11‧‧‧Rotary axis
111‧‧‧第一端111‧‧‧ first end
112‧‧‧第二端112‧‧‧ second end
113‧‧‧旋轉軸線113‧‧‧Rotation axis
12‧‧‧刀具固定裝置12‧‧‧Tool Fixture
13‧‧‧導電接觸裝置13‧‧‧Electrical contact device
14‧‧‧驅動源14‧‧‧Drive source
15‧‧‧導流結構15‧‧‧Guide structure
151‧‧‧流體供入通道151‧‧‧ fluid supply channel
152‧‧‧流體排出通道152‧‧‧ fluid discharge channel
15A‧‧‧工作流體15A‧‧‧Working fluid
20、82‧‧‧刀具部20, 82‧‧‧Tools Department
21‧‧‧刀刃21‧‧‧ Blade
30‧‧‧導電部30‧‧‧Electrical Department
31‧‧‧導電件31‧‧‧Electrical parts
311‧‧‧工作端面311‧‧‧ working end face
31A‧‧‧導電座31A‧‧‧Electric seat
31B‧‧‧固定孔31B‧‧‧Fixed holes
31C‧‧‧導電桿31C‧‧‧conductive rod
31D‧‧‧通孔31D‧‧‧through hole
32‧‧‧絕緣件32‧‧‧Insulation
40‧‧‧中央控制部40‧‧‧Central Control Department
41‧‧‧放電裝置41‧‧‧discharge device
42‧‧‧進刀控制裝置42‧‧‧Injection control device
43‧‧‧轉速控制裝置43‧‧‧Speed control device
44‧‧‧流體控制裝置44‧‧‧Fluid control device
70‧‧‧銑削加工裝置70‧‧‧Milling and processing equipment
71‧‧‧銑削刀具71‧‧‧ Milling tools
81‧‧‧旋轉式工件81‧‧‧Rotary workpiece
811‧‧‧外表面811‧‧‧ outer surface
812‧‧‧環狀側表面812‧‧‧Ring side surface
831、832‧‧‧雷射831, 832‧‧ ‧ laser
83A、83B‧‧‧雷射加溫裝置83A, 83B‧‧‧ laser heating device
84‧‧‧加工液84‧‧‧Processing fluid
90‧‧‧工件90‧‧‧Workpiece
R1‧‧‧刀刃半徑R1‧‧‧blade radius
R2‧‧‧工作半徑R2‧‧‧ working radius
D‧‧‧進刀量D‧‧‧Injection
H‧‧‧工作間隙H‧‧‧Work gap
L2‧‧‧第一曲線L2‧‧‧ first curve
L2‧‧‧第二曲線L2‧‧‧ second curve
L3‧‧‧第三曲線L3‧‧‧ third curve
L4‧‧‧第四曲線L4‧‧‧ fourth curve
第1圖係本發明之示意圖 第2A圖係第1圖之部分結構之放大之示意圖 第2B圖係第2A圖之加設流體排出通道之示意圖 第2C圖係本創作之加設導流結構之示意圖 第2D圖係第2C圖之ⅡD-ⅡD之示意圖 第2E圖係第2D圖之部分結構之立體放大圖 第3圖係本發明之導電部設於刀具部的旋轉方向之前之示意圖 第4圖係第3圖之部分結構之放大示意圖 第5圖係本發明之導電部設於刀具部的旋轉方向之後之示意圖 第6圖係第5圖之銑削過程之示意圖 第7A圖係本發明之刀具部之第一應用例之示意圖 第7B圖係本發明之刀具部之第二應用例之示意圖 第8圖係難加工材料於不同溫度之結構強度變化之曲線圖 第9圖係雷射輔助加熱之車削裝置之示意圖 第10圖係銑削加工裝置只能對工件表面加溫之示意圖 第11圖係銑削加工裝置無法加溫之死角之示意圖 第12圖係雷射光被銑削刀具擋住之示意圖 第13圖係雷射光被銑削之加工液(及加工屑)擋住之示意圖1 is a schematic view of a part of the structure of FIG. 2A, and FIG. 2B is a schematic view of a fluid discharge passage of FIG. 2A. FIG. 2C is a schematic diagram of a flow guiding structure of the present invention. 2D is a schematic view of the IID-IID of FIG. 2C and FIG. 2E is a perspective enlarged view of a part of the structure of the 2D diagram. FIG. 3 is a schematic view showing the conductive portion of the present invention before the rotation direction of the cutter portion. FIG. FIG. 5 is a schematic view showing a portion of the structure of the present invention after the direction in which the conductive portion of the present invention is disposed in the direction of rotation of the tool portion. FIG. 6 is a schematic view of the milling process of FIG. BRIEF DESCRIPTION OF THE FIRST APPLICATION EXAMPLE FIG. 7B is a schematic view showing a second application example of the cutter portion of the present invention. FIG. 8 is a graph showing changes in structural strength of difficult-to-machine materials at different temperatures. FIG. 9 is a laser-assisted heating turning Schematic diagram of the device Fig. 10 is a schematic diagram of the milling device capable of only heating the surface of the workpiece. Fig. 11 is a schematic diagram of the dead angle that the milling device cannot be heated. Fig. 12 is a schematic diagram of the laser light blocked by the milling tool. Schematic diagram of the laser light blocked by the machining fluid (and machining chips)
10‧‧‧旋轉軸部 10‧‧‧Rotary shaft
11‧‧‧旋轉軸 11‧‧‧Rotary axis
111‧‧‧第一端 111‧‧‧ first end
112‧‧‧第二端 112‧‧‧ second end
113‧‧‧旋轉軸線 113‧‧‧Rotation axis
12‧‧‧刀具固定裝置 12‧‧‧Tool Fixture
13‧‧‧導電接觸裝置 13‧‧‧Electrical contact device
14‧‧‧驅動源 14‧‧‧Drive source
20‧‧‧刀具部 20‧‧‧Tool Department
21‧‧‧刀刃 21‧‧‧ Blade
30‧‧‧導電部 30‧‧‧Electrical Department
31‧‧‧導電件 31‧‧‧Electrical parts
311‧‧‧工作端面 311‧‧‧ working end face
32‧‧‧絕緣件 32‧‧‧Insulation
40‧‧‧中央控制部 40‧‧‧Central Control Department
41‧‧‧放電裝置 41‧‧‧discharge device
42‧‧‧進刀控制裝置 42‧‧‧Injection control device
43‧‧‧轉速控制裝置 43‧‧‧Speed control device
44‧‧‧流體控制裝置 44‧‧‧Fluid control device
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105136040A TWI604905B (en) | 2016-11-04 | 2016-11-04 | Machining device with auxiliary electric discharge for hard-to-cut material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105136040A TWI604905B (en) | 2016-11-04 | 2016-11-04 | Machining device with auxiliary electric discharge for hard-to-cut material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI604905B true TWI604905B (en) | 2017-11-11 |
| TW201817523A TW201817523A (en) | 2018-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW105136040A TWI604905B (en) | 2016-11-04 | 2016-11-04 | Machining device with auxiliary electric discharge for hard-to-cut material |
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| Country | Link |
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| TW (1) | TWI604905B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109702497A (en) * | 2019-02-20 | 2019-05-03 | 沈阳航空航天大学 | A kind of multi- scenarios method heating auxiliary drill unit and method |
| CN113263234A (en) * | 2021-06-07 | 2021-08-17 | 湖南科技大学 | Discharge milling composite cutter for discharge compensation clearance |
| CN113369614A (en) * | 2021-06-07 | 2021-09-10 | 湖南科技大学 | Automatic electrode gap compensation method and system for discharge milling composite cutter |
| CN114523164A (en) * | 2022-02-28 | 2022-05-24 | 常州工学院 | Strip-shaped part surface electrolysis mechanical composite machining device |
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| US2654821A (en) * | 1948-07-15 | 1953-10-06 | Warner Swasey Co | Hot machining of metals |
| TW200824825A (en) * | 2006-12-15 | 2008-06-16 | Jia-Lung Kuo | Device and method for laser assisted electrical discharge machining |
| US8053705B2 (en) * | 2005-09-07 | 2011-11-08 | Purdue Research Foundation | Laser assisted machining process with distributed lasers |
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| US2654821A (en) * | 1948-07-15 | 1953-10-06 | Warner Swasey Co | Hot machining of metals |
| US2600453A (en) * | 1949-02-08 | 1952-06-17 | Richard I N Weingart | Method and apparatus for controlling heat in hot maching processes |
| US8053705B2 (en) * | 2005-09-07 | 2011-11-08 | Purdue Research Foundation | Laser assisted machining process with distributed lasers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109702497A (en) * | 2019-02-20 | 2019-05-03 | 沈阳航空航天大学 | A kind of multi- scenarios method heating auxiliary drill unit and method |
| CN109702497B (en) * | 2019-02-20 | 2024-02-23 | 沈阳航空航天大学 | Multi-field coupling heating auxiliary drilling device and method |
| CN113263234A (en) * | 2021-06-07 | 2021-08-17 | 湖南科技大学 | Discharge milling composite cutter for discharge compensation clearance |
| CN113369614A (en) * | 2021-06-07 | 2021-09-10 | 湖南科技大学 | Automatic electrode gap compensation method and system for discharge milling composite cutter |
| CN113369614B (en) * | 2021-06-07 | 2022-09-20 | 湖南科技大学 | Automatic electrode gap compensation method and system for discharge milling composite cutter |
| CN114523164A (en) * | 2022-02-28 | 2022-05-24 | 常州工学院 | Strip-shaped part surface electrolysis mechanical composite machining device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201817523A (en) | 2018-05-16 |
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