M383464 五、新型說明： 、 【新型所屬之技術領域】 本創作係與切削加工機有關’更詳而言之是指—種切削加 工機之自動換刀系統。 、 【先前技術】 鳙 已知切削加工機之換刀系統有利用兩個伺服馬達各別達 成控制換刀夾臂的轉動與直線位移之動作，如我國專利公告號 第I 310717號「刀庫換刀機構」’該專利揭示一第—伺服馬達 之轉軸直接穿設一中空的修’且臂軸_—換刀夾臂，該第 一伺服馬達驅使轉軸轉動並帶動臂軸同步旋轉，藉此以達成押 制旋轉換刀之目的；該專·揭卜第二伺服馬達結合一螺 桿’螺桿上設有-螺帽，螺帽固接一連接件，連接件另一端再 籲 ®接—樞套’樞套係可移動地套雜前述第i服馬達之轉軸 .上且與臂軸連結，利用控制第二伺服馬達正反向驅轉螺桿，以 促使螺帽沿著螺桿前進或後退，間接地造成樞套往前推動或往 後拉動該臂軸，據以達成控制該換刀夾f軸向移動定位之目 的。 誠然，上述結構可達成換刀炎臂之旋轉換刀與軸向移動控 制，惟，其仍有未臻完善之處，即： ^第祠服馬達之轉軸直接穿設更大直徑的臂轴，於帶動 3 臂軸及換刀夾臂同步旋轉時，該轉轴承受極大的扭力作用，並 將造成第一伺服馬達負載過重。 2·承上’第一祠服馬達之轉軸是以其軸身凹設之鍵槽與臂 軸之凸出鍵件配合的方式來達成轉軸帶動臂軸旋轉的動作，此 結構關係容祕轉軸轉動時，對於臂軸上的凸出鍵件造成剪力 破壞。 3. 為避免第-值馬達之轉滅狀，其另—端必須藉由 -固定不_樞座以為讀，該樞座通常是加工機的一部分， 因此造成樞座與第-鑛馬達之間的空間不便再被作為其他 利用。 4. 換刀夾臂之絲往復移動雖是由第二錬馬達驅使然 而在推動或拉動餘方φ，是由職固接連餅，連接件再以 螺栓鎖固枢套，樞套再藉由一轴套而與臂轴結合，前述連接構 件多，不僅徒增組裝不便，更容易在構件尺寸精度配合不佳時 產生干涉情形。 【新型内容】 有鑑於此，本創作之主要目的在於提供一種切削加工機之 自動換刀系統，具有結構穩固及穩定之特性。 緣以達成上述目的，本創作所提供切削加工機之自動換刀 系統包括-機座、-主軸、—換刀央臂、—第—傳動組與一第 二傳動組。其中，主軸係可轉動地安裝於該機座，且可沿著該 機f提供之—軸向往復㈣；換刀㈣結合於該主軸之-端， 且^著該主姉復移動而於—第—位置與__第二位置之間變 換位置，第—傳綠具有—軸紐健主軸可躲赫地穿設 其中’以及-第-動力源藉由—皮帶驅使該軸套轉動，轉動的 軸套將同步帶動該主轴旋轉；第二傳動組包括—推進件與該主 軸、、’且主軸係可相對該推進件轉動，以及—第二動力源用 以驅使該推進件帶動該主軸相對該軸套直線往復移動。 藉此換刀夾臂隨著主轴的轉動或移動，而達成旋轉換刀 與軸向移動定位之動作。 【實施方式】 為能更清楚地說明本創作，兹舉較佳實施例並配合圖示詳 細說明如后β 5月配合第-至三圖所示’本創作—較佳實施例之切削加工 機之自動換刀系統⑽包括-機座1G、-主軸2G、一第一傳 動組30、-第二傳動組4〇與—換刀夾臂％，其中： 機座10為固接於加工機主體（圖未示）上之一箱體，箱 體具有對稱設置之-第-組穿孔12與—第二組穿孔14。 主轴20為L過特殊加工處理而具有良好囉與耐磨性之 圓柱體’主軸20前端2〇a用以固結該換刀夾臂％ (請參第四 圖所7Γ)主軸2〇身部具有—自表面突起之環狀凸垣，該凸垣 構成-第-限制環22 ’必須說明的是，第一限制環22在本實 施例中為—體占 驭心之凸垣，惟不以此為限，例如將一鎖緊螺帽 直接固定於主軸之身部亦可構成第m蝴2g於第一 限制環22至其後端2〇b的表面則凹設有數道軸向設置且底面 '会7之導槽24。如第一圖所示，主軸20穿設機座1〇之第 穿^ 12 ’且主軸2〇與各穿孔12之間設有包括軸承等構 %蓋26使得主軸2〇係可轉動地安裝於該機座。 、白抑第—傳動組3〇包括一軸套311、一第一皮帶輪32、數個壓 返单元33、一第一動讀34、一第二皮帶輪35與一皮帶36， 其中： 軸套31為一圓筒體且自主軸20後端20b套入主軸20， 轴套31部分位於機座1〇内部且其前段31〇裒面設有數道對 應主轴2〇導槽24之切槽训，切槽训附近設有螺孔I， 軸套31後段3Id則凸伸出機座i〇外部且固接該第一皮帶輪 32 ； 每一壓迫單元33包括有複數個滾珠33a、一定位塊 33b、一壓板33c與複數螺栓33d，其中該些滚珠收納於 軸套31之切槽31b中，請配合第六圖所示，滾珠33a部分 落於主軸20之導槽24内，定位塊33b則用以將滾珠33a侷 限於切槽3lb中，壓板33c藉由螺栓33d穿設且鎖入螺孔31 c 而確實地限制定位塊33b與滚珠33a的位置； 第一動力源34於本實施例中係採用伺服馬達，惟並不 以此為限’伺服馬達固接於機座1〇外部，其一輸出轴3如 M383464 前端固接該第二皮帶輪35 ; 該皮帶36則繞跨該第一皮帶輪幻與該第二皮帶輪％。 第二傳動組40包括-第二動力源4卜一螺桿似、一推進 件43、一螺帽44、一轉動套45、二止推抽承*與一第二限 制環47，其中： 第二動力源41亦_舰馬達，惟抑此為限，其固 接於機座10外部； 、螺桿42穿設機座1G之第二組穿孔14，且與部分傳動元 件連接岐該帛二動力源41轉，在各纽Μ巾亦藉由包 括轴承等構件之端蓋（圖未示）居間設置而使得螺桿幻可 原處轉動地安裝於該機座10 ; 推進件43為一板體，其一側穿孔43a固接該螺帽44而 構成-受鶴端，該_ 44套設該鄉a，且隨著螺桿42 正反向轉動而帶動推進件43沿軸向往復位移推進件43另 一側則具有-由穿孔43b與該轉動套45共_成之一連接 端，如第_所示，該主軸2G不僅穿過轉動套#，其上更 套設有該二止推軸承46，其巾-止推軸承46係位於該第一 限制環22與推進件43頂面之間，另—止推轴承如:設於 推進件43的底面外側； 第二限制環47於本實施例中係一固接於主轴2〇之鎖緊 螺帽’用以將該另-止推軸承46纽於第二限制環们與推 進件43底面之間’至此，主軸2〇是以可相對推進件^轉 7 動但不能恣意移動的方式與該推進件43結合。 以上即為本創作切削加卫機之自動換刀系統⑽結構說 明’接著說明該自動換刀系統100對於換刀夾臂50之旋轉 換刀與軸向移動控制敘述如後： 其中，上述第-傳動組3〇在其第一動力源34驅使輸出 軸34a連同第二皮帶輪35轉動時，將連帶地扯動皮帶％繞 轉且第-皮帶輪32亦受皮帶36牽動而帶動軸套幻同步轉 動，轉動的軸套31因與之固接的壓迫單元％之滾珠部 分落於主軸2〇之導槽24内’將使得滚珠说據以牵動主轴 20旋轉，在主軸20前端2〇a固結該換刀夹臂5〇時，則達成 控槪雛刀之目的，如第七圖所示，控制系統1〇〇係採直 立應用，切削加工機用以驅轉刀具之主軸頭2〇〇位於旁側。 在上述實施例中是以滚珠33a與導槽24配合以驅轉主軸2〇 為例，惟，壓迫單元33亦可被省去，而直接將軸套31，内壁 製作成如第八圖所示之具有複數個與導槽24配合的長條形 凸塊31e，在第一動力源34驅轉軸套31，時，凸塊31e牵動 主轴20轉動。 另’本實施例壓迫單元33之滾珠33a藉由設定螺栓33d 的鎖緊力而與主軸2G導槽24之底©保持良好的接觸關係， 在滾珠33a與導槽24彼此長期接觸摩擦致生磨損而有間隙 產生時，吾人得再旋緊螺栓33d以改變滚珠33a位置，致滾 再^導槽24底轉持良好的接觸關係。 r_G餘帛—縣組3G树觸情形下 螺帽4工4 2一動力源41驅使螺桿42正反向轉動時，透過 動推進件43,且推進料連接端之兩侧分別受 至J第一限制環22與第-pp击丨卢μ 推進件43將同牛^制㈣賴限，因此造就移動的 的㈣ ㈣主轴2〇連同換刀夾臂50順從滾珠33a / 1而&著軸向於_第—位置ρι (第四圖參照）與一第 =ΓΡ2(第五圖參照）之贴復祕，據以達成控制換 夾# 50移動定位之目的。 功效飞歸納本創作切削加工機之自動換刀系統100帶來的 其中’對於控触軸2〇轉動的方式因採間接方式傳動， 亦即第-動力源34係透過皮帶36及軸套31而將作用力傳 遞至主轴20,因此主軸2〇並未承受過大的扭力作用相對 地，無造成第-動力源34負载過重之問題。 其次，軸套31帶動主軸20轉動的結構是以複數滚珠咖 與導槽24配合方式製作，因此不易有煎力破壞之情形發 生’且滾珠33a位置係可被調整以因應結構磨損之問題。 再者’主軸2〇前端施為一自由端，不需其他構件的 支撐，故而不受拘束，因此’主軸2〇與換刀夾臂5〇的擺設 與應用將更具彈性與廣泛，如第蝴所示之直立應用、如b第又 九圖所示之直立反轉式應用，即切削加工機之主轴頭位 於控制系統綱的對_、M十騎示之臥式反轉應用， 即控制系統應水平擺放而切削加工機之主轴頭200位於控 制系統的對向側、以及第十—圖所示之水平式應用，即 控制系統100水平擺放而切削加工機之主轴頭·位於旁 側。 又，第二傳動組40之推進件43直接與主軸20及螺桿42 結合，不僅構件簡單且使得_更為簡便。 以上所述僅為本創作較佳可行實施例而已，舉凡應用本創 作說明書及巾請專__為之等效結構狄，理應包含在本 創作之專利範圍内。M383464 V. New description: [New technical field] This creation is related to the cutting machine. In more detail, it refers to the automatic tool change system of the cutting machine. [Prior Art] 换The tool change system of the known cutting machine has the action of controlling the rotation and linear displacement of the tool changer arm by using two servo motors. For example, China Patent Publication No. I 310717 "Magazine change" The knive mechanism" discloses that the first servo-motor shaft directly passes through a hollow repairing arm and the arm shaft _-the tool change arm, and the first servo motor drives the rotating shaft to rotate and drives the arm shaft to rotate synchronously, thereby The purpose of the rotary rotary tool is achieved; the second servo motor is combined with a screw, the screw is provided with a nut, the nut is fixed to a connecting member, and the other end of the connecting member is connected to the pivoting sleeve. The pivoting sleeve is movably entrained on the rotating shaft of the first service motor and coupled to the arm shaft, and the second servo motor is used to drive the screw forward and backward to advance or retract the nut along the screw, indirectly causing The pivot sleeve pushes forward or pulls the arm shaft forward, thereby achieving the purpose of controlling the axial movement positioning of the tool change clamp f. It is true that the above structure can achieve the rotary tool change and the axial movement control of the tool changer arm. However, there are still some unsatisfactory improvements, that is: ^ The steering shaft of the second motor is directly threaded through the larger diameter arm shaft. When the 3-arm shaft and the tool changer arm are rotated synchronously, the rotary bearing is subjected to great torque and the first servo motor is overloaded. 2. The bearing shaft of the first servo motor is operated by the key groove of the shaft body and the protruding key of the arm shaft to achieve the rotation of the shaft to rotate the arm shaft. Shear damage is caused to the protruding key on the arm shaft. 3. In order to avoid the extinction of the first-value motor, the other end must be read by the -fixed seat, which is usually part of the processing machine, thus causing the pivot between the pivot and the first-mine motor The space is inconvenient to be used as other. 4. The reciprocating movement of the wire of the tool changer arm is driven by the second motor. However, when pushing or pulling the remaining side φ, the joint is connected by the joint, and the connecting piece is then bolted to the pivot sleeve. The sleeve is combined with the arm shaft, and the number of the connecting members is large, which is not only inconvenient to assemble, but also more likely to cause interference when the dimensional accuracy of the member is poorly matched. [New content] In view of this, the main purpose of this creation is to provide an automatic tool change system for a cutting machine, which has the characteristics of stable structure and stability. In order to achieve the above objectives, the automatic tool change system of the cutting machine provided by the present invention includes a base, a spindle, a tool changer arm, a first transmission group and a second transmission group. Wherein, the main shaft is rotatably mounted to the base, and is provided along the machine f-axially reciprocating (four); the changing tool (four) is coupled to the end of the main shaft, and the main squat is moved to - The position between the first position and the second position is changed, and the first-passing green has a shaft, and the main axis of the shaft can be escaping through the 'and-first-power source by the belt to drive the sleeve to rotate, and rotate The sleeve will synchronously drive the spindle to rotate; the second transmission set includes a propulsion member and the main shaft, and the main shaft is rotatable relative to the propulsion member, and a second power source is configured to drive the propulsion member to drive the main shaft relative to the main shaft The sleeve reciprocates linearly. Thereby, the tool changer arm realizes the action of the rotary tool change and the axial movement positioning as the spindle rotates or moves. [Embodiment] In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings, and the cutting machine of the present invention, as shown in the following paragraphs - to FIG. The automatic tool change system (10) comprises a base 1G, a spindle 2G, a first transmission group 30, a second transmission group 4〇 and a tool changer arm %, wherein: the base 10 is fixed to the main body of the processing machine One of the casings (not shown) has a symmetrical arrangement of a first set of perforations 12 and a second set of perforations 14. The main shaft 20 is a cylindrical body with good 啰 and wear resistance after L special processing. The front end of the main shaft 20 2〇a is used to consolidate the tool change arm % (refer to the seventh figure 7 Γ) spindle 2 〇 body Having a ring-shaped tenon from a surface protrusion, the tenon forming a -first confinement ring 22' must be described in the first embodiment, the first confinement ring 22 is a body-shaped bulge, but not For example, if a locking nut is directly fixed to the body of the main shaft, the surface of the first limiting ring 22 to the rear end 2〇b of the first butterfly ring 2g may be formed with a plurality of axially disposed bottom surfaces. 'The guide groove 24 of the 7th. As shown in the first figure, the main shaft 20 is disposed through the first through hole 12' of the base 1 and the main shaft 2 is provided with a bearing such as a cover 26 so that the main shaft 2 is rotatably mounted on the main shaft 2 The base. The transmission group 3 includes a sleeve 311, a first pulley 32, a plurality of pressure return units 33, a first movable read 34, a second pulley 35 and a belt 36, wherein: the sleeve 31 is A cylindrical body and a rear end 20b of the autonomous shaft 20 is inserted into the main shaft 20, and the sleeve 31 is partially located inside the base 1b and the front section 31 is provided with a plurality of slots corresponding to the main shaft 2〇 guide groove 24, and the slotted training is performed. A screw hole I is disposed in the vicinity, and the rear portion 3Id of the sleeve 31 protrudes from the outside of the base and is fixed to the first pulley 32. Each pressing unit 33 includes a plurality of balls 33a, a positioning block 33b, and a pressing plate 33c. And the plurality of bolts 33d, wherein the balls are received in the slots 31b of the sleeve 31, as shown in the sixth figure, the balls 33a partially fall into the guide grooves 24 of the main shaft 20, and the positioning block 33b is used for the balls 33a. Limited to the slot 3lb, the pressure plate 33c is bored by the bolt 33d and locked into the screw hole 31c to positively limit the position of the positioning block 33b and the ball 33a; the first power source 34 is a servo motor in this embodiment. However, it is not limited to this. The servo motor is fixed to the outside of the frame, and its output shaft 3 is like M383464. The second fixed pulley 35; across the belt 36 about the first pulley and the second pulley magic%. The second transmission group 40 includes a second power source 4, a screw-like device, a pushing member 43, a nut 44, a rotating sleeve 45, two thrust pumping holes* and a second limiting ring 47, wherein: The power source 41 is also a ship motor, but only limited thereto, which is fixed to the outside of the base 10; the screw 42 passes through the second set of perforations 14 of the base 1G, and is connected to a part of the transmission element. 41 turns, in which each of the enamels is also rotatably mounted to the base 10 by means of an end cover (not shown) including a bearing or the like; the pusher 43 is a plate body. The one side perforation 43a is fixed to the nut 44 to form a tow end, and the _ 44 sleeve is disposed in the town a, and the propeller 43 is reciprocally displaced in the axial direction by the propeller 43 while the screw 42 rotates in the forward and reverse directions. The side has a connection end which is formed by the perforation 43b and the rotating sleeve 45. As shown in the _th, the main shaft 2G not only passes through the rotating sleeve #, but also has the two thrust bearings 46 disposed thereon. The towel-thrust bearing 46 is located between the first limiting ring 22 and the top surface of the pushing member 43, and the thrust bearing is disposed outside the bottom surface of the pushing member 43; In the present embodiment, the ring 47 is a locking nut fixed to the main shaft 2' to hold the other thrust bearing 46 between the second limiting ring and the bottom surface of the pushing member 43. 2〇 is combined with the pusher 43 in such a manner that it can be moved relative to the pusher member but cannot be moved. The above is the structural description of the automatic tool change system (10) of the cutting and cutting machine. Next, the automatic tool change system 100 describes the rotary tool change and the axial movement control of the tool changer arm 50 as follows: wherein, the above- When the first power source 34 drives the output shaft 34a and the second pulley 35 to rotate, the transmission group 3 turns the belt belt % around and the first pulley 32 is also pulled by the belt 36 to drive the sleeve to rotate synchronously. The rotating bushing 31 is partially suspended in the guide groove 24 of the main shaft 2 by the ball portion of the pressing unit fixed thereto. The ball will be rotated to move the main shaft 20, and the front end of the main shaft 20 is fixed by 2〇a. When the tool changer arm is 5 ,, the purpose of controlling the knives is achieved. As shown in the seventh figure, the control system 1 is used for erecting applications, and the spindle head of the cutting machine for driving the tool is located next to it. side. In the above embodiment, the ball 33a is engaged with the guide groove 24 to drive the main shaft 2〇 as an example, but the pressing unit 33 can also be omitted, and the sleeve 31 and the inner wall are directly formed as shown in the eighth figure. The plurality of elongated bumps 31e are engaged with the guide grooves 24, and when the first power source 34 drives the sleeve 31, the projections 31e pull the spindle 20 to rotate. In addition, the ball 33a of the pressing unit 33 of the present embodiment maintains a good contact relationship with the bottom of the guide groove 24 of the main shaft 2G by the locking force of the setting bolt 33d, and the friction between the balls 33a and the guide groove 24 is caused by long-term contact with each other. When there is a gap, we have to tighten the bolt 33d to change the position of the ball 33a, and the roller is rotated to maintain a good contact relationship. r_G 余帛—The county group 3G tree touches the nut 4 work 4 2 power source 41 drives the screw 42 to rotate in the forward and reverse directions, through the moving propeller 43 , and the two sides of the propulsion material connection end are respectively subjected to J first The restriction ring 22 and the first-pp hitting μμμ pusher 43 will be the same as the four (4) limit, thus creating a moving (four) (four) spindle 2 〇 together with the tool change arm 50 compliant with the ball 33a / 1 and the axial direction In the _--position ρ (the fourth figure reference) and a = ΓΡ 2 (fifth figure reference), the purpose of the control to change the folder # 50 mobile positioning. The effect of the automatic tool change system 100 of the present cutting machine is that the way of controlling the rotation of the control shaft 2 is driven by the indirect mode, that is, the first power source 34 is transmitted through the belt 36 and the sleeve 31. The force is transmitted to the main shaft 20, so that the main shaft 2 is not subjected to excessive torque, and the problem that the first-power source 34 is overloaded is not caused. Next, the structure in which the sleeve 31 drives the spindle 20 to rotate is formed by the cooperation of the plurality of balls and the guide groove 24, so that it is less likely to cause the frying damage to occur and the position of the ball 33a can be adjusted to cope with the problem of structural wear. Furthermore, the front end of the main shaft 2 is applied as a free end and does not require the support of other components, so it is not restricted. Therefore, the arrangement and application of the main shaft 2〇 and the tool change arm 5〇 will be more flexible and extensive, such as The upright application shown by the butterfly, such as the vertical reversing application shown in the second and second figures of b, that is, the spindle head of the cutting machine is located in the horizontal reversal application of the control system, ie, the control The system should be placed horizontally with the spindle head 200 of the cutting machine on the opposite side of the control system and the horizontal application shown in the tenth to the figure, ie the control system 100 is placed horizontally and the spindle head of the cutting machine is located next to it. side. Moreover, the pusher 43 of the second transmission set 40 is directly coupled to the main shaft 20 and the screw 42, which is not only simple in construction but also simpler. The above description is only a preferred embodiment of the present invention. The application of this creation specification and the towel should be included in the scope of the patent.