200831216 九、發明說明: 【發明所屬之技術領域】 本發明是關於一種工具機主軸裝置，特別是指一楂可 以帶動工具機之刀具旋轉，並可鬆退並更換刀具之具有反 扣功能妁工具機主軸裝置。 【先前技術】 蠡 參閱圖1，習知工具機之主軸裝置i係可帶動該工具機 之一刀具10旋轉，所述刀具1〇具有一個鄰近端緣的扣合 部101 ’該主軸裝置]包含：一個由多數塊體軸向對揍而成 之固定座11、一個安裝在該固定座11之一軸道111内的驅 動機構12、一個拉刀機構13，以及一個退刀機構14。 滅驅動械構12包括:一支軸向延伸的心軸m '兩對 將心軸121以可轉動方式架設在軸道m内的軸承]22、 122，以及一個驅動心軸121轉動的動力源123，談心軸 121具有一個軸向貫穿的夹持道124，此夾持道124具有一 I又錐^/並和刀具1〇緊密貼合連動的夹持段，以及一個 ^ ^ ^ ^ 4TK m ^ 126 ^ # ^ ^ 122 # - ^ ^ 127 ^ _。軸121之外裱壁面固定地套合的内環套m，以及數 個夹設在該等環套127、128間的滾珠129。 該拉刀機構13包括一支可轴向移動地安裝在央持道 124内的拉桿131、一個與拉桿l3i螺合的夹爪座心^ 支安衣在夾爪座132上的夹爪133、一圈使夾爪！33之一夾 持段bo恆往外張的彈簧圈134、一個與拉桿i3i螺合並突 200831216 • . . . · .- - - -' 出於夾持道124右侧的受推座135 ,以及數個穿套在拉桿 131上並頂撐在心軸121之一突出肩部12〇及受推座135間 的盤形彈* 136。 . · - . ' . , : ' * ... .... 該退刀機構14包括一個由多數塊體軸向對接而成的虹 座141 ’以及一個安裝在缸座141上的退刀活塞142，上述 缸座141具有一個缸室143 ,以及一個將液壓油引入或引出 缸室143的進液道144 ,而退刀活塞142具有一個位於該缸 ·- ..... - . . _ 室143内的受推部145，以及一個可突出於缸室143並可頂 I 推受推座135的推桿部146。 ‘主軸衣置1位在圖1所示的一個運轉位置時，該等 夾爪133之夾持部130是扣合在刀具1〇的扣合部1〇Γ上。 此時動力源123可以驅動心軸121旋轉，並藉由心軸121 · . . . . - — . . * ·. . 壁與刀具10的緊密貼合帶動刀具1〇轉動，上述爪炎座 ; . ... . ' . _ ' 132、受推座135、拉桿131、夾爪133則與心軸121 —起 ，動0 —.... . - . . _ 配合圖2，當習知主軸裝置1要更揍刀具1〇時，貧先 i壓油由進液道:144進入缸室143，並將退刀活塞142往圖 2左側推動。當退刀活塞142往圖2左側移動的過裎中，和 1 - . . ' ' .... ' . 二 拉桿131螺鎖在一起的受推座T35受到推桿部146的推抵 ’而使夾爪座132以及夾爪133同步向左移動。當夾爪 之夾持部130對應夾持道124之夾爪退段126時，受到彈 頁圈134的作用，該等夾爪133會往夾爪退段126退。此 時該刀具10即可被抽離夾持道124。而當液壓油退出缸室 143時，受到盤形彈簧136的作用，原本左移的元件即會復 200831216 位。 習知主軸裝置1利用前述各機構之i合，雖可達到帶 動刀具10轉動以及更換刀具10的目的，但為了達到以上 的目的，該等軸承122、m，之外環套127必需和固定座u 固定地結合，而軸承122之内環套128必需和心軸m緊 配地結合，同時拉刀機構13的受推座135、夾爪座132也 和心軸121的内壁面緊密地貼合，因此，在鬆退及安裝刀 具1〇的過程中，施予受推座丨35的軸南推力會傳遞到心軸 121 ’並造成心軸丨2丨與軸承丨22、丨22，貼合部位承受較大 的軸向推力，特別是鄭近受推座135的軸承122尺寸較小 ’較無法承受如此大的推力，因此，習知主軸裝置丨在使 用時’該等軸承122、122,容易損壞。 【發明内容】 ' ' ’ -. ....:： : . 本I明之目的係在提供一種可以減緩元件損壞程度之 具有反扣功能的工具機主軸裝置。 ?、本餐明之工具機主軸裝置係可帶動一刀具旋轉，並可 f f及組裝該刀具，上述主軸裝置包含：一具有一軸道之 λ 女衣在軸道内並可驅動該刀具旋轉的驅動機構 ^ 一j裝在驅動機構之一心軸的一夾持道内的拉刀機構， 乂及個用來頂推拉刀機構軸向移動並使主軸裝置由一運 轉位置轉換到_退刀位置的退刀機構。 月的特徵在於:該退刀機構包括一壓缸單元，以 一女衣在壓缸單元之一紅室内的活塞單元，上述活塞單 U -頂推拉刀機構以執行退刀作業的退刀活塞，以及 200831216 一個可受頂推而可相對移近或移離退刀活塞的拉爪活塞； 又該主軸裝置還包含一反扣機構，上述反扣機構包括一和 心軸固定地結合之反扣座，以及至少一個隨著拉爪活塞移 -- . - - . . ...... 動並可和反扣座扣緊或鬆脫的反扣夾。 本發明有益功效在於:當主轴裝置由運轉位置轉換到 退刀位置的過程中，利用該反扣機構緊拉並定位該心軸， 可以避免鬆退刀具的軸向推力完全作用在心轴及和心軸固 ‘.- ' . ... '. 定連接的其他元件上，藉此違到降低元件磨損程度的功效 ° · - · - . * V … 【實施方式】 有關本發明之前述及其他技術内容、特1¾與功效，在 以下配合參考圖式之較佳實施例的詳細說明,，將可清楚 的呈現。 \ ^ ^ Ί . :乂 ..： ... 參閱圖3、4，本發明工具機主軸裝置之一趣佳實施例 可供一刀具10安裝，並驅動該刀具1〇旋轉，所述刀具 具有一個可被主軸裝置扣合之扣合部101，該主軸裝置如是 已a 口疋座2、一提供刀具10轉動作用力之驅動备構 3、一拉刀機構4、一退刀機構5 ,以及一反扣機構6。 該固定气2包括:一個中空狀並軸向延伸的前固定塊 21、一個與刖固定塊21間隔的中空環狀後固定塊μ，以及 ^ # ® 21 ：22 ^ ^ ^ 23 . 24 ,. 該等固定塊21、22、23、24界定出__個水^_25^ 述前固定塊21具有—個位於圖3左側的前端環面心 及一個鄰近該前端環面211並往軸道25徑向突入_承二 200831216 靠部212，而該後固定塊22具有一個後端環面221，鄰近 後固定塊22之中間固定塊24上具有一個水平的軸承環架 Φ 241 〇 本實施例之驅動機構3包括一支水平地位在軸道25内 的心軸31、兩個前軸承32、兩個後軸承33，以及一個驅動 該心軸31沿著自身軸心轉動的動力源34。其中該心轴31 具有一個圍.繞軸心設置並界定出一夾持道3H的抽壁312， 該軸壁312具有一段位於中間的基部313、一個位在基部 313左側且徑向突出的夾持部314、一個位在基部313右側 的徑凹部315，以及一個自基部313往徑向内端突出的禪菁 靠環316，而該夹将道311具有一個錐形並對應夾持部314 的連動抵段317、一夾爪退段318。 ' : ., 〆 ... 本貫施例的珂軸承32是間隔地夾設在固定座2之轴承 環靠部m及心軸μ之夾持部314間.，該等後軸承33 t 是精密滑配地炎設在固定座2之軸承環架面24i及心轴3ι 之徑凹部3竹間，上述前、後軸承 後軸承33為例，每個後軸承33都具有一個與㈣ 24精密滑配地結合的外環套3心 她結合的内環套332，以及數個炎設在該内、外環套331、 313i ' 緊德、貼合之刀具10旌φφ，夫奋# a丨4 >轉’本4例之動力源為—電動馬達 本實施例之拉刀機構4 包括：一可轉動地安裝在心軸 200831216 . . .. - ' . Λ ...... — ' — ^ . - . . . _ . . .· · · · .- . . . - · .-- . . · ' .. . 31之夾持道311内的拉桿41、一螺固在拉桿41之一前端 411的夾爪座42、數支同步移動地安裝在夾爪座42上並具 有一夾持部430的夾爪43、4個使夾爪43具有往外張復位 作用力 <彈簧圈44、一個螺固在拉桿41之一後端心 X推座45，以及數個穿套在拉桿41上並頂撐在心軸31之 彈黃靠部316與受推座45間的復位彈簧46。 本實施例的退刀機構5是固定地安裝在固定座2的後 方，包括:一個壓紅單元51以及一個活塞單元52，讀壓虹 ：^ ^ ^ ^ ^ ^ ^ ^^ :缸别座511，以及一個舆壓缸前座511靠合的壓缸後座512 導液運54。而該活塞單元52是安裝在壓缸單元51内，並 具有一拉爪活塞521及一退刀活塞522。該拉爪活塞521具 有一俩位於缸室5 3内並鄰近壓缸前座5丨丨的前活塞部5 23 # 塞部523及反扣部创的貫穿道仍^ 該退刀活塞5 22具:有一個鄰近壓缸後座512的後活塞部526: 二 ’以及一個由貫穿道525突出的退刀頂部527，上述退 部527和拉刀機構4之受推座45軸向對應、 組裝後藉活塞單兀52將缸室53區隔成一介於壓缸前 座511及前活塞部513間的環形第一空間531、一介於前、 後活基部523、526間的環形第二空間532，以及一個位於 後活塞部526及壓缸後座512間的環形第三空間533，其中 10 200831216 第三空間533大於第一空間531，而該導液道54具有一條 軸向的第一段541、一條徑向連通第一段541及第一空間 531的第二段542、一條徑向連通第一段541及第三空間 533的第二段543、一條軸向的第四段544，以及一條連通 苐四段544及第二空間532的第五段545。 本實施例的反扣機構6包括一個螺固在心軸31之徑凹 : . - .· ' . - ' - 部315末端的反扣座61、數個圍繞反扣部524的反扣爪62 ，以及一圈具泽性地綁繞住每個反扣爪62並使反扣夾62 • 扣合在拉爪活塞521之反扣部524上的環扣63。其中該反 扣座6ι具有一環徑向突出的徑凸環011，以及一環位在徑 凸環611左側的徑凹環612，而每個反扣爪们都具有一個 伸入徑凹環612的扣鉤621，以及一個扣鉤在反扣部524之 反和凹環520内的固定鉤622，其中，該扣釣621的寬度小 於徑凹環6u的寬度，而該嚷定鉤{η上具有一個斜面623200831216 IX. Description of the Invention: [Technical Field] The present invention relates to a spindle device for a machine tool, in particular to a tool having a reverse function that can rotate the tool of the machine tool and can retract and replace the tool. Machine spindle device. [Prior Art] Referring to Figure 1, a spindle device i of a conventional machine tool can drive a tool 10 of the machine tool to rotate. The tool 1 has a fastening portion 101 adjacent to the end edge. A fixing base 11 which is axially opposed by a plurality of blocks, a driving mechanism 12 mounted in one of the shafts 111 of the fixing base 11, a broach mechanism 13, and a retracting mechanism 14. The drive mechanism 12 includes: an axially extending mandrel m 'two pairs of bearings that rotatably mount the mandrel 121 in the axle m] 22, 122, and a power source that drives the spindle 121 to rotate 123, the talking mandrel 121 has an axially extending clamping channel 124, the clamping channel 124 has a clamping section which is I-cone and/or closely coupled with the cutter 1〇, and a ^ ^ ^ ^ 4TK m ^ 126 ^ # ^ ^ 122 # - ^ ^ 127 ^ _. An inner ring sleeve m that is fixedly fitted to the outer wall surface of the shaft 121, and a plurality of balls 129 interposed between the ring sleeves 127 and 128. The broach mechanism 13 includes a pull rod 131 axially movably mounted in the central support 124, and a jaw 133 which is screwed to the pull rod l3i and is mounted on the jaw seat 132. Make a grip in a circle! 33, one of the gripping sections bo, the outer coil spring 134, one and the tie rod i3i screw merged with the protrusion 200831216 • . . . . . . - - - - ' from the right side of the clamping lane 124, the pusher 135, and the number The sleeves are sleeved on the rods 131 and are supported by a disc-shaped bullet 136 between the shoulders 12 〇 and the cradle 135. The retracting mechanism 14 includes a Hong seat 141 ' which is axially butted by a plurality of blocks and a retracting piston mounted on the cylinder block 141. 142, the above-mentioned cylinder block 141 has a cylinder chamber 143, and a liquid inlet 144 for introducing or withdrawing hydraulic oil into the cylinder chamber 143, and the retracting piston 142 has a cylinder located at the ...-..-. The pushed portion 145 in the chamber 143, and a pusher portion 146 that protrudes from the cylinder chamber 143 and can be pushed by the pusher 135. When the one position of the main shaft is set to one of the operating positions shown in Fig. 1, the holding portion 130 of the claws 133 is engaged with the engaging portion 1 of the cutter 1''. At this time, the power source 123 can drive the spindle 121 to rotate, and rotate the cutter 1 by the close fit of the wall and the cutter 10 by the mandrel 121 · . . . . . . . ' . _ ' 132, the pusher 135, the tie rod 131, the jaw 133 are together with the mandrel 121, moving 0 —.... . - . . _ with Figure 2, when the conventional spindle When the device 1 is to be more than 1 揍, the lean first oil is introduced into the cylinder chamber 143 by the inlet passage 144, and the retracting piston 142 is pushed to the left side of FIG. When the retracting piston 142 moves to the left side of FIG. 2, the pusher seat T35 which is screwed together with the 1 - . . ' '.. '. two levers 131 is pushed by the push rod portion 146' The jaw seat 132 and the jaws 133 are moved to the left in synchronization. When the clamping portion 130 of the jaw corresponds to the jaw retraction 126 of the clamping lane 124, it is subjected to the action of the spring ring 134 which will retreat toward the jaw retraction 126. At this point the tool 10 can be pulled away from the gripper 124. When the hydraulic oil exits the cylinder chamber 143, it is subjected to the function of the disc spring 136, and the element which is originally shifted to the left will be recovered to 200831216. The conventional spindle device 1 can achieve the purpose of driving the cutter 10 to rotate and replacing the cutter 10 by using the above-mentioned various mechanisms. However, in order to achieve the above object, the bearings 122, m, the outer ring sleeve 127, and the fixed seat must be used. u is fixedly coupled, and the inner ring sleeve 128 of the bearing 122 must be tightly coupled with the mandrel m, and the pusher seat 135 and the jaw seat 132 of the broach mechanism 13 also closely fit the inner wall surface of the mandrel 121. Therefore, during the process of loosening and installing the tool 1 ,, the axial thrust applied to the push cymbal 35 is transmitted to the mandrel 121 ′ and causes the mandrel 丨 2 丨 to be fitted to the bearing 丨 22, 丨 22, The part is subjected to a large axial thrust, in particular, the bearing 122 of the Zheng yoke 135 is relatively small in size, and is less able to withstand such a large thrust. Therefore, the conventional spindle device is in use when the bearings 122, 122 are easily damaged. SUMMARY OF THE INVENTION The purpose of the present invention is to provide a machine tool spindle device having a reverse buckle function that can reduce the degree of component damage. The machine tool spindle device of the present invention can drive a tool to rotate, and can assemble the tool. The spindle device includes: a drive mechanism having a shaft λ women's clothes in the axle and driving the tool to rotate ^ A jig mechanism mounted in a gripping lane of one of the spindles of the drive mechanism, and a retracting mechanism for axially moving the jacking mechanism and shifting the spindle device from an operating position to a retracting position. The moon is characterized in that: the retracting mechanism comprises a cylinder unit, a piston unit in a red chamber of the cylinder unit in the cylinder unit, and the piston U-top push-pull mechanism to perform the retracting piston of the retracting operation, And 200831216, a claw piston that can be pushed up and relatively moved away from or away from the retracting piston; and the spindle device further comprises a reverse button mechanism, wherein the reverse button mechanism comprises a buckle seat fixedly coupled with the mandrel And at least one of the pistons that move with the claws----. . . . and can be fastened and loosened with the reverse buckle. The beneficial effect of the invention is that: when the spindle device is switched from the operating position to the retracting position, the reversing mechanism is used to tightly pull and position the mandrel, so that the axial thrust of the retracting tool can be prevented from completely acting on the mandrel and the heart. Axial solid '.- ' . . . '. on the other components of the connection, thereby violating the effect of reducing the degree of wear of the component ° · - - - - * V ... [Embodiment] The foregoing and other technologies related to the present invention The detailed description of the preferred embodiments of the present invention will be apparent from the following description. \ ^ ^ Ί . :乂..: ... Referring to Figures 3 and 4, one of the preferred embodiments of the machine tool spindle device of the present invention can be used to mount a tool 10 and drive the tool to rotate, the tool having a fastening portion 101 that can be engaged by a spindle device, such as a shackle 2, a driving mechanism 3 for providing a rotational force of the tool 10, a broach mechanism 4, a retracting mechanism 5, and A reverse button mechanism 6. The fixed gas 2 includes: a hollow and axially extending front fixing block 21, a hollow annular rear fixing block μ spaced apart from the crucible fixing block 21, and ^ # ® 21 : 22 ^ ^ ^ 23 . 24 , . The fixed blocks 21, 22, 23, 24 define __ water _ 25 ^ The front fixed block 21 has a front end ring face center on the left side of FIG. 3 and a front end ring face 211 and a turn axis 25 Radially projecting into the bearing portion 212, and the rear fixing block 22 has a rear end ring surface 221, and the intermediate fixing block 24 adjacent to the rear fixing block 22 has a horizontal bearing ring frame Φ 241. The drive mechanism 3 includes a spindle 31 that is horizontally positioned within the axle 25, two front bearings 32, two rear bearings 33, and a power source 34 that drives the spindle 31 to rotate along its own axis. Wherein the mandrel 31 has a pumping wall 312 disposed around the axis and defining a gripping lane 3H, the shaft wall 312 having a section of the base portion 313 located in the middle, and a radially protruding clip located on the left side of the base portion 313. The holding portion 314, a radial recess 315 located on the right side of the base portion 313, and a zen cyan ring 316 protruding from the base portion 313 toward the radially inner end, and the clip passing shaft 311 has a tapered shape corresponding to the clamping portion 314 The interlocking section 317 and the jaw retracting section 318 are connected. ' : ., 〆... The 珂 bearing 32 of the present embodiment is interposed between the bearing ring portion m of the fixed seat 2 and the clamping portion 314 of the spindle μ. The rear bearing 33 t is The precision sliding lands are set in the bearing ring frame 24i of the fixed seat 2 and the bamboo recess 3 of the mandrel 3 ι. The front and rear bearing rear bearings 33 are taken as an example, and each rear bearing 33 has one and (four) 24 precision. The outer ring sleeve 3 of the sliding joint is combined with the inner ring sleeve 332 of the combination of the inner ring and the outer ring sleeves 331 and 313i of the inner and outer loop sleeves 331 φφ, Fufen # a丨4 > Turning to the power source of the present invention is - electric motor The broach mechanism 4 of the present embodiment includes: a rotatably mounted on the mandrel 200831216 . . . . - ' . Λ ...... — ' ^ . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The jaw seat 42 of the front end 411 and the plurality of jaws 43 which are movably mounted on the jaw seat 42 and have a clamping portion 430, and the four claws 43 have an outwardly restoring force <spring coil 44, a screw is fixed on one of the back ends of the pull rod 41 45, and a plurality of return springs 46 that are placed over the tie rods 41 and supported between the spring yokes 316 of the mandrel 31 and the urging seat 45. The retracting mechanism 5 of the present embodiment is fixedly mounted at the rear of the fixing base 2, and includes: a red pressing unit 51 and a piston unit 52, and the reading pressure is rainbow: ^ ^ ^ ^ ^ ^ ^ ^ ^ : the cylinder housing 511 And a press cylinder rear seat 511 abutting the cylinder rear seat 512 to conduct liquid 54. The piston unit 52 is mounted in the cylinder unit 51 and has a claw piston 521 and a retracting piston 522. The claw piston 521 has a front piston portion 523 which is located in the cylinder chamber 53 and adjacent to the cylinder front seat 5 #. The plug portion 523 and the reverse buckle portion of the through passage still have the retracting piston 5 22: There is a rear piston portion 526 adjacent to the cylinder rear seat 512: two' and a retracting top 527 protruding from the through-passage 525. The retracting portion 527 and the cradle 45 of the broach mechanism 4 are axially corresponding, assembled and borrowed The piston unit 52 partitions the cylinder chamber 53 into an annular first space 531 interposed between the cylinder front seat 511 and the front piston portion 513, an annular second space 532 interposed between the front and rear living bases 523, 526, and a An annular third space 533 between the rear piston portion 526 and the cylinder rear seat 512, wherein the 10 200831216 third space 533 is larger than the first space 531, and the liquid guide 54 has an axial first segment 541 and a diameter. a second segment 542 connecting the first segment 541 and the first space 531, a second segment 543 radially connecting the first segment 541 and the third space 533, an axial fourth segment 544, and a connecting fourth Segment 544 and fifth segment 545 of second space 532. The kickback mechanism 6 of the present embodiment includes a radial recess that is screwed to the mandrel 31: . - . . ' . - ' - a buckle seat 61 at the end of the portion 315, and a plurality of reverse claws 62 surrounding the buckle portion 524, And a loop 63 that snugs each of the counter-claws 62 and fastens the counter-clip 62 to the buckle portion 524 of the claw piston 521. The buckle seat 6π has a ring-shaped radial protruding ring 011, and a radial concave ring 612 ringed on the left side of the radial ring 611, and each of the reverse claws has a buckle extending into the concave ring 612. a hook 621, and a fixing hook 622 of the hook in the opposite and recessed ring 520 of the buckle portion 524, wherein the width of the buckle 621 is smaller than the width of the concave ring 6u, and the hook has a Bevel 623
• 外端樞擺，使該反扣爪62及反扣座61得以被解亂。 J 本發明之主軸裝置處於圖3、4的一轉動位置時，該等 夹爪43之夾持部43〇是往中央樞擺，並和刀具1〇之扣合 部101扣合連動’此時第二空間532最大，而退刀活塞522 之退刀頂部527會縮入於貫穿道525内，並且和受推座45 分開，而該等反扣爪62之扣鉤621只是位在反扣座6丨之 徑臥環612内，兩者間呈未扣合狀。當動力源別驅動心軸 轉動％ ’可以驅動刀具1〇同步轉動，由於此部份構造及 作動原理和習知者相同，不再說明。 200831216 參閱圖5、6 ,當本發用欲由圖3的運轉位置轉換到圖 5的一退刀位置時，首先需使動力源34停止運轉，然後讓 液壓 >由由第一段541進入導液道54内，當液壓油由第一段 541進入時，液壓油會由第二段541及第三段543分別進入 ,. * - ； . - - . - 參• The outer end pivots so that the reverse pawl 62 and the buckle seat 61 can be unraveled. When the spindle device of the present invention is in a rotational position of FIGS. 3 and 4, the clamping portion 43 of the jaws 43 pivots toward the center and is engaged with the fastening portion 101 of the cutter 1'. The second space 532 is the largest, and the retracting top 527 of the retracting piston 522 is retracted into the through-pass 525 and separated from the cradle 45, and the clasp 621 of the anti-claw 62 is only in the reversing seat. The 6-inch diameter is in the horizontal ring 612, and the two are unfastened. When the power source drives the spindle rotation % ′, the cutter 1 驱动 can be driven to rotate synchronously. Since this part of the construction and actuation principle is the same as the conventional one, it will not be explained. Referring to Figures 5 and 6, when the present invention is intended to be switched from the operational position of Figure 3 to the retracted position of Figure 5, first the power source 34 is deactivated and then the hydraulic pressure > is entered by the first segment 541. In the liquid guiding channel 54, when the hydraulic oil enters from the first section 541, the hydraulic oil will enter from the second section 541 and the third section 543, respectively. * - ; . - - . -
第一及第三空間531、533，然後迫使拉爪活塞521及退刀 /舌基522之如、後活塞部523、526靠合，此時原本位在第 一空間532内的液壓油就會由第五段545往第四段544排 出’、中進入弟二空間533的液壓油會將退刀活塞m2 在左推，並因此頂推受推座45及拉桿41等元件往左移動 ’ s夾爪43對應夾持道311之夾爪退段318時，受到彈菁 圈44的作用，該等夾爪43就會往徑向外端樞擺，使該刀 具10可以被抽離。 在同一時間，進入第一空間531的液壓油會將拉爪活 基521往右頂推，並帶動反扣爪62 一齊往古移動，當反扣 爪62的扣鉤621和反扣座61之徑凸環6ii相卡抵扣合時， 會施予心軸31及拉刀機構4 一股定位的作用力，此作用力 可^克服拉捍41雙到頂推時所施予心軸M的左推作用力 田％軸31不會因為拉稈41軸向移動而被迫左移的過程 中，原本夾設在心軸31及固定座2間的軸承32、33就不 i承又過大的軸向推力，特別是鄰近退刀機構5之後轴承 33故本1明改蜒退刀機構5的構造，同時增設該反扣機 構6的設計不僅新穎，更具有避免元件損壞，以及延長元 件使用壽命等功效，而具產業上利甩性。 1*隹以上所述者，僅為本發明（較佳實施例而已，當不 12 200831216 — . [ .- - - 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵盖之範圍内。 ... . . . .. ： - - ·.. 圖1是一種習知工具機主轴裝置之組合剖視圖，圖中 該主軸裝置位在一運轉位置;^ 圖2是一類似圖1的組合剖視圖，圖中該主軸裝置位 .. , .. .' . . ... .... 在一退刀位置; 鲁 ^圖3是本發明主轴裝置之一較佳實施例的組合剖視圖 - . - ' - - . . : - - - _ ； : . .. . ._ . : - - . - . _ . -- ' ' .. ' ，圖中該主軸裝置位在一運轉位置; …. : ' - - - - -- ·- ,. -. - -- - . - . · . 圖4是一類似圖3的局部剖視放大圖; 圖5是一類似圖3的組合剖視圖，圖中該主軸裝置位 .' —. * / " . - _ 一退刀位置；及 .... . . . . ' .... ' . ... : . 圖6是一類似圖5的局部剖視放大圖。The first and third spaces 531, 533 then force the claw piston 521 and the retracting/tongue base 522 and the rear piston portions 523, 526 to abut, and the hydraulic oil originally located in the first space 532 is The hydraulic oil discharged from the fifth segment 545 to the fourth segment 544 and entering the second space 533 will push the retracting piston m2 to the left, and thus push the components such as the push block 45 and the pull rod 41 to the left to move left. When the jaws 43 correspond to the jaw retracting section 318 of the clamping lane 311, they are subjected to the action of the elastic ring 44, and the jaws 43 are pivoted toward the radially outer end so that the cutter 10 can be pulled away. At the same time, the hydraulic oil entering the first space 531 pushes the claw base 521 to the right, and drives the reverse claw 62 to move all the way to the ancient, when the buckle 621 of the reverse claw 62 and the buckle seat 61 are When the convex ring 6ii is snapped, the force of the spindle 31 and the broach mechanism 4 is applied, and the force can overcome the left push of the spindle M when the pull 41 is double pushed. When the force field % shaft 31 is forced to move leftward due to the axial movement of the pulling straw 41, the bearings 32, 33 originally sandwiched between the mandrel 31 and the fixed seat 2 are not subjected to excessive axial thrust. In particular, the bearing 33 is adjacent to the retracting mechanism 5, so that the design of the retracting mechanism 5 is modified, and the design of the reversing mechanism 6 is not only novel, but also avoids component damage and prolongs the service life of the component. It is industrially profitable. 1*隹 The above is only the present invention (the preferred embodiment, when not 12 200831216 - [.--- can limit the scope of the implementation of the present invention, that is, the scope and invention of the invention according to the present invention The simple equivalent changes and modifications made by the descriptions are still within the scope of the present invention. ... . . . . . . . . . . . . . . . . . . . . . . . . . . . In the figure, the spindle device is in an operating position; ^ Fig. 2 is a combined sectional view similar to Fig. 1, in which the spindle device is located.., .. . . . . . . Figure 3 is a combined cross-sectional view of a preferred embodiment of the spindle device of the present invention - . - ' - . . : - - - _ ; : . . . . . . -- ' ' .. ' , the spindle device is in a running position; .... : ' - - - - -- --- ,. -. - -- - . - . . . Figure 4 is a similar figure 3 is a partial cross-sectional enlarged view; FIG. 5 is a combined cross-sectional view similar to FIG. 3, in which the spindle device position. '-.* / " . - _ a retracting position; and .... . . . ' .... ' . . : . Figure 6 is a bureau similar to Figure 5. An enlarged cross-sectional view of FIG.
13 200831216 【主要元件符號說明】 鲁13 200831216 [Key component symbol description] Lu
10 刀具 33 後軸承 101 扣合部 331 外環套 2 固定座 332 内環套 21 前固定塊 333 滾珠 211 前端環面 34 動力源 212 軸承環靠部 4 拉刀機構 22 後固定塊 41 拉桿 221 後端壞面 411 前端 23 中間固定塊 412 後端 24 中間固定塊 42 炎爪座 241 軸承環架面 43 夾爪 25 軸道 430 爽持部 3 驅動機構 44 彈簧圈 31 心軸 45 受推座 311 夾持道 46 復位彈簧 312 軸壁 5 退刀機構 313 基部 51 壓缸單元 314 爽持部 511 壓缸前座 315 徑凹部 512 壓缸後座 316 彈簣靠部 52 活塞單元 317 連動抵段 520 反扣凹環 318 夾爪退段 521 拉爪活塞 32 前軸承 522 退刀活塞 14 200831216 523 前活塞部 543 第三段 524 反扣部 544 第四段 525 貫穿道 545 第五段 526 後活塞部 6 反扣機構 527 退刀頂部 61 反扣座 53 缸室 611 徑凸環 531 第一空間 612 徑凹環 532 第二空間 62 反扣爪 533 第三空間 621 扣鉤 54 導液道 622 固定鉤 541 第一段 623 斜面 542 第二段 63 環扣 1510 Tool 33 Rear bearing 101 Fastening part 331 Outer ring sleeve 2 Mounting seat 332 Inner ring sleeve 21 Front fixing block 333 Ball 211 Front end ring 34 Power source 212 Bearing ring part 4 Broaching mechanism 22 Rear fixing block 41 After rod 221 End bad face 411 Front end 23 Intermediate fixing block 412 Rear end 24 Intermediate fixing block 42 Inflamed jaw seat 241 Bearing ring frame surface 43 Claw 25 Axle 430 Sinking part 3 Drive mechanism 44 Spring ring 31 Mandrel 45 Pusher 311 Clip Holding path 46 return spring 312 shaft wall 5 retracting mechanism 313 base 51 cylinder unit 314 holding part 511 cylinder front seat 315 diameter recess 512 cylinder rear seat 316 magazine part 52 piston unit 317 interlocking section 520 reverse recess Ring 318 jaw retraction 521 jaw piston 32 front bearing 522 retraction piston 14 200831216 523 front piston section 543 third section 524 reverse buckle section 544 fourth section 525 through passage 545 fifth section 526 rear piston section 6 reverse buckle mechanism 527 Retracting top 61 Reversing seat 53 Cylinder chamber 611 Diameter ring 531 First space 612 Diaove ring 532 Second space 62 Reverse claw 533 Third space 621 Buckle 54 Guide channel 622 Fixing hook 541 First paragraph 623 Bevel 542 Second paragraph 63 Buckle 15