201103689 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種加工機械，特別是指一種可換刀 的小型化心軸單元及主轴裝置。 【先前技術】 如圖1及圖2所示’現有一種主軸裝置，包含一心軸 單元1、一套設在該心軸單元1外部的殼體單元2、一安裝 在該心軸單元1與該殼體單元2之間的馬達3、一設置在該 馬達2前側且安裝在該心軸單元1與該殼體單元2之間的 月ίΐ空氣軸承4、一設置在該馬達3後側且安裝在該心軸單元 1與該设體單元2之間的後空氣輪承5。該心軸單元丨具有 一軸套101、一滑動套設在該軸套1〇1中的滑動件1〇2、一 與泫滑動件102鎖接的筒夾1〇3及一提供該滑動件1〇2拉 掣該筒夾103朝該軸套ιοί内部套合彈力的彈力件1〇4。 如圖2所示，該滑動件1〇2具有一本體1〇5及一固設 在該本體105且呈中空環狀的環套1〇6，該本體1〇5具有一 6又置在内部且供該筒夾1〇3鎖接的螺孔1〇7 ,該環套1〇6自 該本體105前端朝後延伸。 雖然利用該環套1〇6的設置，可提供該滑動件1〇2相 對於該軸套101線性移動時產生低摩擦阻力，但是因為該 環套106的設置位置對應於該螺孔1〇7，以致於該滑動件 102的小型化文到限制，亦即，當滑動件1 的尺寸變小時 ，沒有足夠的肉厚攻牙產生螺孔107，而高轉速（例如 200000 300000 rpm)主軸裝置的心轴單元卜必須採質量 201103689 較低.、尺寸較小的設計，以維持適當的轉動慣性矩，亦或 鑽設細小孔徑的機種，也必須設計尺寸較小的心軸單元工。 小型化的軸套101因内孔徑變小，將無法容置上述的滑動 件 102。 再者，為了使該％套1〇6固定於該本體1〇5，該本體 105更具有一設置在外周面的外螺紋108,且該環套1〇6具 有一可螺合在該外螺紋108的内螺紋1〇6，，如此—來更加 造成該滑動件1G2的小型化受到更大的限制。 【發明内容】 因此，本發明之-目的，即在提供一種可縮小徑向尺 寸之可換刀的小型化心軸單元。 發月之S目的，即在提供一種可縮小徑向尺寸之 具有可換刀的小型化心軸單元的主軸裝置。201103689 VI. Description of the Invention: [Technical Field] The present invention relates to a processing machine, and more particularly to a miniaturized spindle unit and a spindle device that can be replaced with a knife. [Prior Art] As shown in FIG. 1 and FIG. 2, a prior art spindle device includes a spindle unit 1, a housing unit 2 disposed outside the spindle unit 1, and a spindle unit 1 mounted thereon. a motor 3 between the housing units 2, a moon air bearing 4 disposed on the front side of the motor 2 and mounted between the spindle unit 1 and the housing unit 2, and a rear side of the motor 3 and mounted A rear air wheel bearing 5 between the spindle unit 1 and the installation unit 2. The spindle unit has a sleeve 101, a sliding member 1 slidably sleeved in the sleeve 1 〇1, a collet 1 〇3 locked to the cymbal slider 102, and a sliding member 1 〇 2 pulls the collet 103 toward the sleeve ιοί internally to fit the elastic elastic member 1〇4. As shown in FIG. 2, the slider 1〇2 has a body 1〇5 and a ring sleeve 1〇6 fixed to the body 105 and having a hollow shape. The body 1〇5 has a 6 and is placed inside. And a screw hole 1〇7 for locking the collet 1〇3, the ring sleeve 1〇6 extends rearward from the front end of the body 105. Although the arrangement of the collar 1〇6 is used, it is possible to provide a low frictional resistance when the slider 1〇2 moves linearly relative to the sleeve 101, but since the position of the collar 106 corresponds to the screw hole 1〇7 Therefore, the miniaturization of the slider 102 is limited, that is, when the size of the slider 1 becomes small, there is not enough flesh-thick tapping to generate the screw hole 107, and the high-speed (for example, 200000 300000 rpm) spindle device The mandrel unit must be of a lower quality, smaller size design, to maintain proper rotational moment of inertia, or to drill a small aperture model. It is also necessary to design a smaller mandrel unit. Since the reduced size of the sleeve 101 is small, the above-described slider 102 cannot be accommodated. Furthermore, in order to fix the % sleeve 1〇6 to the body 1〇5, the body 105 further has an external thread 108 disposed on the outer peripheral surface, and the collar 1〇6 has a screw thread at the external thread. The internal thread 1〇6 of 108, as such, further causes the miniaturization of the slider 1G2 to be more limited. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a miniaturized mandrel unit that can reduce a radial size of a replaceable knife. The purpose of the moon is to provide a spindle device having a small-sized mandrel unit with a replaceable knife that can reduce the radial size.
一滑動套設在該軸套中的滑動件、一 中的滑動件、一與該滑動徠錨妓的a sliding member disposed in the sleeve, a sliding member in the sleeve, and a sliding hook
力件女裝在該軸套内部， 罚傻延伸。該筒央沿該軸線鎖接 螺3又於該螺孔的螺接部。該彈 且提供該滑動件拉掣該筒夹朝該 201103689 軸套内部套合的彈力，且使該筒夹朝該軸線產生束夾。 本發明具有可換刀的小型化心軸單元的主軸裝置，包 含一心軸單元、一殼體單元'一馬達、一前軸承、一後軸 承及一頭座單元。該心軸單元沿一軸線延伸，並具有一軸 套'一沿該轴線滑動套設在該軸套中的滑動件、一沿該軸 線與該滑動件鎖接的筒夾及一套設在該軸套與該滑動件之 間的彈力件，該滑動件具有一本體及一固設在該本體的環 套，該本體呈階級狀，並具有一大徑部、一沿該軸線銜接 在該大徑部後側的小徑部、一銜接在該大、小徑部之間的 肩部及一對應該軸線設置的螺孔’該螺孔的設置位置對應 於該大徑部’該環套固設在該小徑部且自該肩部朝後延伸 ，該彈力件提供該滑動件拉掣該筒夾朝該軸套内部套合的 彈力，且使該筒夾朝該軸線產生束夾。該殼體單元呈中空 筒狀且套設在該心轴單元外部。該馬達安裝在該心軸單元 與該殼體之間’且驅動該心軸單元轉動。該前轴承安裝在 該心轴單元與該殼體之間，且設置在該馬達前側。該後軸 承安裝在，心軸單元與該殼體之間，且設置在該馬達後側 ’該頭座單元具有-固設於該殼體單元的頭座及一可推掣 該滑動座的壓力缸。 本發明之功效：利用該環套固設在該小徑部且自該肩 部朝後延伸’可縮小徑向尺寸。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之_個較佳實施例的詳細說明中，將可 201103689 清楚的呈現。 。。-如圖3及圖4所示，本發明具有可換刀的小型化心轴 單疋10的主軸裝置1〇〇的較佳實施例，更包含—套設在該 心軸單元ίο外部的殼體單& 2G、〜套設在該心轴單元1〇 與=殼體單元2G之間的馬達3()、—設置在該馬達％前側 的刖轴承40、一設置在該馬達30後側的後軸承5〇、一設 置在該後轴承5G後側的止推轴承60及-設置在該止鋒 承60後側的頭座單元70。 忒心軸單元10包含一沿一軸線L延伸的軸套I!、一滑 動套設在糾套11中的滑動件12、-與該_件12鎖接 的筒爽13及一提供該滑動件π拉掣該筒夹13朝該軸套^ 内部套合彈力的彈力件14。 該軸套Π具有一可界定出—抽孔⑴的内環面112及 一與該内環面112相反的外環面113，該内環面ιΐ2具有一 垂直於該軸線L且對應該筒夾13的定位肩部1丨4，該外環 面H3具有一前端部115、一後端部116、—介於該前 '後 端部U5、116之間的中段m及一設於該後端部ιΐ6且沿 徑向延伸的定位盤件i丨8。 該滑動件12滑動套設在該軸孔1U中，並具有一本體 121及_固設在該本體121的環套122。該本豸⑵呈階級 狀’並具有-大㈣123、-沿該抽，線L銜接在該大徑部 Π3後側的小徑部124、一銜接在該大、小徑部i23、124 之間的肩部125及一對應鵁軸線L設置的螺孔126，該螺孔 126的設置位置對應於該大徑部123。配合參閱圖5,本實 201103689 施例的環套122為自潤軸承，且具有多數凹設於内環面且 可供填入黏膠的環槽1221，藉該環槽1221中的黏膠使得該 壞套122固設在該小徑部124且自該肩部125朝後延伸， 並提供該滑動件12相對於該軸套u線性移動時產生低摩擦 阻力。 該筒夾13沿該軸線l鎖接在該滑動件12 一侧，並具 有一螺設於該螺孔126的螺接部131。The strength of the women's clothing inside the bushing, a silly extension. The central portion of the cylinder locks the screw 3 along the axis and the screw portion of the screw hole. The spring is provided with the slider pulling the spring force of the collet toward the inner portion of the 201103689 bushing, and causing the collet to produce a beam clamp toward the axis. The present invention has a spindle unit for a small-sized mandrel unit that can be changed, and includes a spindle unit, a housing unit 'a motor, a front bearing, a rear bearing, and a head unit. The spindle unit extends along an axis and has a sleeve, a sliding member that is sleeved in the sleeve along the axis, a collet that is coupled to the sliding member along the axis, and a set An elastic member between the sleeve and the sliding member, the sliding member has a body and a ring sleeve fixed to the body, the body is in a class shape, and has a large diameter portion, and a large diameter portion is connected along the axis a small diameter portion on the rear side of the diameter portion, a shoulder portion that is connected between the large and small diameter portions, and a pair of screw holes that are disposed on the axis. The installation position of the screw hole corresponds to the large diameter portion. Provided in the small diameter portion and extending rearward from the shoulder portion, the elastic member provides the elastic force for pulling the collet to the inner sleeve of the sleeve, and causes the collet to generate a bundle clamp toward the axis. The housing unit has a hollow cylindrical shape and is sleeved outside the spindle unit. The motor is mounted between the spindle unit and the housing and drives the spindle unit to rotate. The front bearing is mounted between the spindle unit and the housing and is disposed on a front side of the motor. The rear bearing is mounted between the spindle unit and the housing, and is disposed on the rear side of the motor. The header unit has a head seat fixed to the housing unit and a pressure that can push the sliding seat. Cylinder. The effect of the present invention is that the radial dimension can be reduced by the ring sleeve being fixed to the small diameter portion and extending rearward from the shoulder portion. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings. . . - As shown in FIG. 3 and FIG. 4, the present invention has a preferred embodiment of the spindle device 1A of the miniaturized spindle unit 10 of the replaceable knife, and further comprises a sleeve sleeved on the outside of the spindle unit ίο a body 3 & 2G, a motor 3 ( ) disposed between the spindle unit 1 〇 and the housing unit 2G, a 刖 bearing 40 disposed on the front side of the motor %, and a rear side of the motor 30 A rear bearing 5, a thrust bearing 60 disposed on the rear side of the rear bearing 5G, and a header unit 70 disposed on the rear side of the thrust bearing 60. The spindle unit 10 includes a sleeve I! extending along an axis L, a sliding member 12 slidably sleeved in the sleeve 11, a cylinder 13 that is locked with the member 12, and a sliding member π pulls the collet 13 to the elastic sleeve 14 of the elastic sleeve. The bushing has an inner annular surface 112 defining a punching hole (1) and an outer annular surface 113 opposite to the inner annular surface 112, the inner annular surface ι2 having a vertical axis L corresponding to the collet a positioning shoulder 1 丨 4, the outer annular surface H3 has a front end portion 115, a rear end portion 116, a middle portion m between the front end portion U5, 116, and a rear end portion A locating plate member 丨8 that is ΐ6 and extends in the radial direction. The sliding member 12 is slidably sleeved in the shaft hole 1U and has a body 121 and a ring sleeve 122 fixed to the body 121. The base (2) has a class shape and has a large (four) 123, along which the line L is connected to the small diameter portion 124 on the rear side of the large diameter portion Π3, and is connected between the large and small diameter portions i23 and 124. The shoulder portion 125 and a screw hole 126 corresponding to the 鵁 axis L, the screw hole 126 is disposed at a position corresponding to the large diameter portion 123. Referring to FIG. 5, the ring sleeve 122 of the embodiment of the present embodiment 201103689 is a self-lubricating bearing, and has a plurality of ring grooves 1221 recessed in the inner ring surface and filled with the adhesive, by the adhesive in the ring groove 1221. The bad sleeve 122 is fixed to the small diameter portion 124 and extends rearward from the shoulder portion 125, and provides a low frictional resistance when the slider 12 linearly moves relative to the sleeve u. The collet 13 is locked to the side of the sliding member 12 along the axis l, and has a screwing portion 131 screwed to the screw hole 126.
該彈力件14安裝在該軸套u内部且彈抵在該定位肩部 114與該本體12的大徑部123之間，促使該筒夾13朝該軸 線L產生束失。 該殼體單元20呈中空筒狀，並具有一外殼21及一固 設在該外殼21内部的冷卻套22。 該馬達30安裝在該心軸單元】〇的中段i! 7與該冷卻套 22之間且可驅動該心軸單元丨〇轉動。 該前軸承40為空氣軸承，安裝在該心軸單元1〇的前 端部115與該冷卻套22之間，且設置在該馬達3〇前側。 D玄後軸承5G為空氣轴承，安裝在該心轴單元1 〇的後 端部116與該冷卻# 22 ^ ,且設置在該馬達30後側、該 定位盤件118前側。 該止推軸承6G為空氣轴承，安裝在該^軸單元1〇的 後端部m與該冷卻套22之間，絲對於該後轴承5〇設置 在該定位盤件118後側。 該頭座單元70具有一固設於該殼體單& 且位在該 止推軸承60後側的頭座71及一可推擎該滑動座12的壓力 201103689 ▲ 胃該'月動座12受該壓力缸72掣動且帶動該筒夾13 刚移時’即可鬆釋該筒夾13進行換刀。 =發月利用該環套122固設在該本體121的小徑部124 。u肩邛125朝後延伸。則利用該環套的設置，不 w提供該π動件12相對於該軸套丨丨線性移動時產生低摩 力且因為s亥螺孔126對應於該大徑部123，雖滑動件 、的卜1尺寸變小’但在大徑部有足夠的肉厚攻牙， 、·^月動件12整體的徑向尺寸可以小型化，可適用於高 轉速或，細孔之小型化心軸單元10、絲裝置100。 值得一提的是，本發明的環套122與該本體m是利 用膠黏、纟。合，可固結牢111，1所示的環套106與本體 1〇5 Μ螺合方式結合’則會因背隙問題，可能產生鬆動，所 、本發月的％、套122與該本體121的固結性，亦優於現 有主軸震置。The elastic member 14 is mounted inside the sleeve u and is biased between the positioning shoulder 114 and the large diameter portion 123 of the body 12 to cause the collet 13 to be lost toward the axis L. The housing unit 20 has a hollow cylindrical shape and has a housing 21 and a cooling jacket 22 fixed inside the housing 21. The motor 30 is mounted between the middle section i! 7 of the spindle unit 〇 and the cooling jacket 22 and is rotatable by the spindle unit. The front bearing 40 is an air bearing that is mounted between the front end portion 115 of the spindle unit 1A and the cooling jacket 22, and is disposed on the front side of the motor 3. The D-ft-back bearing 5G is an air bearing, and is mounted on the rear end portion 116 of the spindle unit 1 与 and the cooling # 22 ^ , and is disposed on the rear side of the motor 30 and on the front side of the positioning disk member 118. The thrust bearing 6G is an air bearing which is installed between the rear end portion m of the shaft unit 1 and the cooling jacket 22, and the wire is disposed on the rear side of the positioning disc member 118 for the rear bearing 5'. The head unit 70 has a head base 71 fixed to the housing unit & and located on the rear side of the thrust bearing 60, and a pressure that can push the sliding seat 12 201103689 ▲ stomach 'the lunar seat 12 When the cylinder 72 is swayed and the collet 13 is moved, the collet 13 can be released to perform the tool change. The ferrule 122 is fixed to the small diameter portion 124 of the body 121 by the ferrule 122. u shoulder 125 extends backwards. By using the setting of the collar, the frictional force is generated when the π-moving member 12 moves linearly relative to the sleeve, and because the s-shaped screw hole 126 corresponds to the large-diameter portion 123, although the sliding member The size of the Bu 1 is small, but there is sufficient flesh-thickness tapping in the large-diameter portion. The radial dimension of the lunar moving member 12 can be miniaturized, and it can be applied to a small-sized mandrel unit with high rotation speed or fine holes. 10. Wire device 100. It is worth mentioning that the ring sleeve 122 of the present invention and the body m are made of adhesive and enamel. The combination of the loop sleeve 106 shown in Fig. 1 and the body 1〇5 Μ screwing method will result in looseness due to backlash problems, the % of the month, the sleeve 122 and the body The consolidation of 121 is also superior to the existing spindle.
At惟以上所述者，僅為本發明之較佳實施例而已，當不 ^以此限疋本發明實施之範圍，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 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1疋現有一種主軸裝置的組合剖面圖； 圖2是該種主軸裝置的局部放大示意圖； 圖3是一組合剖面圖，說明本發明具有可換刀的小型 化心軸單元的主軸裝置的一較佳實施例； 圖4是本發明上述較佳實施例之一局部放大示意圖； 201103689 .及 圖5是本發明上述較佳實施例之另一局部放大示意圖 ，說明一環套固結在一本體上。The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent change of the scope of the invention and the description of the invention. And modifications are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a combination of a spindle device; FIG. 2 is a partially enlarged schematic view of the spindle device; FIG. 3 is a combined sectional view showing a miniaturized mandrel having a replaceable knife according to the present invention; FIG. 4 is a partially enlarged schematic view of a preferred embodiment of the present invention; FIG. 4 is a partially enlarged schematic view of the above preferred embodiment of the present invention, illustrating a ring sleeve Consolidated on a body.
i Oj 201103689 【主要元件符號說明】 100 ·· …主軸裝置 124···· …·小徑部 10…… …心軸單元 125 .... •…肩部 L....... …軸線 126.·· …·螺孔 11...... …軸套 13…… …筒夾 111 ···· …轴孔 131… •…螺接部 112 …· …内環面 14…… …·彈力件 113 ···· …外環面 20…… •…殼體單元 114 ·· …定位肩部 21…… …·外殼 115 · ·· …前端部 22…… …·冷卻套 116 — …後端部 30…… …·馬達 117 .… …中段 40…… —刖轴承 118 …. …定位盤件 50…… …·後軸承 12...... …滑動件 60…… …止推軸承 121 ··· …本體 70…… …·頭座單元 122 ··· …環套 71…… •…頭座 1221 .· …環槽 72…… ‘…壓力缸 123 ···· …大徑部i Oj 201103689 [Description of main component symbols] 100 ·· ... Spindle device 124······ Small diameter section 10... ... spindle unit 125 .... •...Shoulder L....... Axis 126.···· screw hole 11............ bushing 13... collet 111 ...····...shaft hole 131... •... screwing portion 112 ...· inner ring surface 14... ...·elastic member 113····...outer ring surface 20...•...shell unit 114··...positioning shoulder 21... ... housing 115 · ··... front end 22... ... cooling jacket 116 — ...rear end portion 30... ...·motor 117 .... ... middle section 40... - 刖 bearing 118 .... ... locating disc 50 ... ... ... rear bearing 12 ... ... sliding member 60 ... ... Push bearing 121 ····body 70...··head unit 122···...ring 71...•...head 1221.·...ring groove 72... '...pressure cylinder 123 ···· Diameter
1010