1331191 九、發明說明： 【發明所屬之技術領域】 本發明有關流體轴承溝槽加工工具，提供轴 承内溝槽形狀，提供潤滑油的流動條件，滿足# 承穩定旋轉功能需求。内溝槽加工工具，圓·周上 佈設複數個切削刀具，製造工具的最大外徑，可 做微調放大、縮小，容易進出軸承内徑，刻劃内 溝槽。 【先前技術】 習知一般的流體軸承設計，請參閱「第一圖 所示’考量轴與軸套之間在高轉速時仍能維持低J 摩擦、低漏油等需求’轴或轴套表面具有内溝槽 加工，溝槽的深度約3〜10微米（#m)e該内溝槽 設計’流體在魚骨交會點上，將造成徑向的凸起 壓力波，一圈圓周上同時產生向軸心的徑向壓 力，提供軸承穩定旋轉的流體動力源。 提供轴承穩定旋轉功能，軸套内壁表面的内 溝槽為關鍵加工重點。一般的内溝槽加工工具， 刀具的最大外徑為固定值’且稱大於軸承孔^， 故須自抽孔起點開始加工’因此溝槽與外部有通 連，造成潤滑油溢漏，或吸入空氣等缺點。 軸孔尺寸小於5 mm的流體軸承，内溝槽之刻 劃方式’更疋困難。若採一般單柄工具，深入軸 孔内刻劃溝槽’由於工具的長徑比較大，且無支 撐點，工具軸的強度不足，工具容易晃動、振“動， 刻劃深度及大小尺寸不易控制等缺點。 5 1331191 【發明内容】 根據上述對於内溝槽加工部分，本發明以刀具 最大外徑可調式設計，製造工具進入轴套軸孔^ 後，再調整刀具最大外徑位置，進行内溝槽刻劃 加工。工具軸圓周上的刀具，採複數個、對稱佈 置設計’可滿足軸承孔徑小於5 mm之内溝槽刻劃 加工0 【實施方式】 茲謹就本發明「流體軸承溝槽加工工具」的 * 内容，及其所產生的功效，配合圖式，舉出本案 之較佳實施例詳細說明如下。 請參閱「第二圖」所示，圓柱形之溝槽加工 工具50，在第一圓徑61的圓周上，同一圓周 圈佈設複數個凸起刀具5 1，稱之為一組刀具 組；依加工需求，沿著工具的不同轴向位置，可 佈設多組刀具組，分別建於不同之圓周圈上。圓 柱形工具的轴心，採中空設計，每區段之中心孔 5 3内徑’可依抽向位置而有漸大、漸小、台階 ·· 等變化。圓周圈上的刀具組，在刀具與刀具之間， 沿轴向方向割劃出軸向預裂（割）槽5 2 1，軸向 預裂槽的切割深度’自工具表面穿透至中心孔， 或=穿透至中心孔’視刀具加工範圍（溝槽深度） 而定。預裂槽割劃範圍，可不及工具最尖端，一 體性仍可巧持工具之結構強度。中心孔的徑向截 3積’隨著轴向改變，配合具有相對斜度（面積） 變化之項針’採前後移動方式，由中心孔内部向 1揮大中心孔’提供徑向外力，藉由預裂槽的可 張陡’使得工具表面之刀具組可向徑向方向輻 6 1331191 射張開。中心孔内頂針尚未作用前，整體刀具本 巧的加工圓控6 0，微小於待加工的軸套轴孔内 徑ii，工具可進入轴孔内。為避免工具與軸承 孔發生尺寸干涉，及提供切削料排放通道，工具 可設有第二圓徑5 9，直徑小於第一圓徑6工 ^向預裂槽設計，請參閱「第三圖」所示， ^具表面預割的預裂槽521，預裂槽深度可穿 透工具表面至中心孔，或僅限於工具表面。當來 中心孔内部之徑向力3 0，其利用中心 <8* i # 士中心孔内徑之干涉關係，或以氣/油壓流 成ill孔内部壓力增大，將預裂槽向外輻射 田撐開之徑向範圍視溝槽加工深度而定，工 具圓面之刀具加工半徑範圍，亦隨之擴大。 "參閱「第四圖」所示，中心孔可另加 設計，工具本體的軸向預裂槽割劃範圍， 了卫具最尖端，前端由固定座55固定， ^ ,伸至工具的最尖端（參閱第二圖所示）。溝 工^具，亦可搭配軸孔鑽頭工具5 7，合併 劃内溝槽等功能，不需更換工具。轴承 内溝槽加工程序，說明如下。 內湳ί參閲「第五圖」~示’加工工具進入軸孔 後，中心孔頂針5 4，可於中心孔内 ，，後移動，頂針可適時頂住中心孔 徑向力，將刀具的最大外徑"外 ^Μ 1〇產生尺寸干涉，配合加工工具的 ί=:ί65 ’前後作動方式“，及頂針 二方式68，切削轴套的内壁，加工出内 請參閲「第六圖」所示，中心孔頂針可具有 7 斜度螺紋設計，搭配中心孔的螺紋’頂針旋轉作 動方式6 7，亦可提供中心孔沿徑向向外輻射的 作用力’將刀具的最大外徑6 2外移，與軸承1 0產生尺寸干涉，配合加工工具的旋轉作動方式 6 5 ’前後作動方式6 6，及頂針作動方式6 7、 6 8 ’切削軸套的内壁，加工出内溝槽形狀。 本發明的另一型態加工工具設計，刀具的加 工圓徑60大於軸承孔徑11，工具的第一圓徑 6 1稍小於轴孔内徑’請參閱「第七圖」所示。 為了使工具順利進入軸孔内加工，需壓縮刀具的 最大外徑至小於軸孔内徑。同樣的，在工具圓周 上預割軸向預裂槽，但原設置於中心孔的面積變 化梯度，改設置於工具外徑表面，與外徑套筒5 £的徑向截面積，互相對應，當外徑套筒以前後 移動方式6 4，可壓抑或放鬆刀具的最大圓徑， 改變刀具的加工圓徑至略小於轴承孔徑，加工工 ^可順利進入轴承内。請參閱「第八圖」所示， 藉由外徑套筒5 6的前後作動方式，改變刀具的 徑向加工範圍，與軸承1 0產生尺寸干涉，配合 轉作動方式6 5，前後作動方式6 6，刀肖」丨軸套的内壁，加工出内溝槽形狀。 紋犬t士5 ΐ 5 1與加工工具間，亦可採斜度螺 ，藉由斜度螺紋旋轉模式6 3，亦 ::後移動之目的，改變刀具的徑 與軸承1 〇產生尺寸干涉，配合加 作動方式6 5，前後作動方式6 6二刀”土的内壁，加工出内溝槽形狀。 7 i另一,具設計，改變預裂槽的割劃方向’採 徑向預裂槽5 2 2，請參間「楚 砑爹閲第九圖」所示。在 1331191 【圖式簡單說明】 第一圖：係一般軸承内溝槽示意圖。 第二圖：係本發明之溝槽加工工具示意圖。 第三圖：係本發明之轴向預裂槽設計示意圖。 第四圖：係本發明之另一溝槽加工工具示意圖。 第五圖：係本發明之溝槽加工方式示意圖。 第六圖：係本發明之另一溝槽加工方式示意圖。 第七圖：係本發明之另一溝槽加工工具示意圖。 第八圖：係本發明之另一溝槽加工方式示意圖。 第九圖：係本發明之徑向預裂槽設計示意圖。 第十圖：係本發明之溝槽加工工具示意圖。 第十一圖：係本發明之另一溝槽加工方式示意圖。 【主要元件符號說明】 10 -----軸套 11 -----軸承孔徑 12 -----旋轉軸 15-----轴套油室 21-----上部溝槽 23-----下部溝槽 30-----徑向力 35-----氣/油屋源 50 -----内溝槽加工工具 51 -----刀具 521 ----轴向預裂（割）槽 522 ----徑向預裂（割）槽 53 -----中心孔 54 -----中心孔頂針 55 -----固定座 1331191 56 -----外徑套筒 57 -----鑽頭 58 -----氣/油壓流體 59 -----工具第二圓徑 60 -----刀具加工圓徑 61 -----工具第一圓徑 62 -----刀具外移後加工圓徑 63 -----外徑套筒旋轉作動方式 64 -----外徑套筒前後作動方式 65 -----製造工具旋轉作動方式 66 -----製造工具前後作動方式 67 -----頂針旋轉作動方式 68 -----頂針前後作動方式 111331191 IX. Description of the Invention: [Technical Field] The present invention relates to a fluid bearing groove processing tool which provides a groove shape in a bearing and provides a flow condition of the lubricating oil to meet the requirements of the stable rotation function of the bearing. The inner groove machining tool is provided with a plurality of cutting tools on the circumference and circumference, and the maximum outer diameter of the manufacturing tool can be finely adjusted to enlarge and contract, and it is easy to enter and exit the inner diameter of the bearing and scribe the inner groove. [Prior Art] For the general fluid bearing design, please refer to "The first figure shows the requirement of maintaining low J friction and low oil leakage at high speeds between the shaft and the bushing." Shaft or bushing surface With internal groove processing, the depth of the groove is about 3~10 microns (#m)e. The inner groove is designed to 'fluid at the fishbone intersection point, which will cause radial convex pressure waves, which are simultaneously generated on one circle. The radial pressure to the shaft provides a fluid power source for stable rotation of the bearing. Provides stable rotation of the bearing, and the inner groove of the inner wall surface of the sleeve is the key processing focus. The general inner groove machining tool, the maximum outer diameter of the tool is The fixed value 'is more than the bearing hole ^, so it must be processed from the starting point of the pumping hole'. Therefore, the groove is connected to the outside, causing oil leakage or air inhalation. The fluid bearing with a shaft hole size of less than 5 mm, The scribe pattern of the inner groove is more difficult. If a general single-handle tool is used, the groove is drilled deep into the shaft hole. Since the long diameter of the tool is relatively large and there is no support point, the strength of the tool shaft is insufficient, and the tool is easy to shake. ,vibration Scoring depth and difficult to control sizes and other shortcomings. 5 1331191 SUMMARY OF THE INVENTION According to the above-mentioned inner groove processing part, the invention is designed with the maximum outer diameter of the tool adjustable, and after the manufacturing tool enters the shaft hole of the sleeve, the maximum outer diameter position of the tool is adjusted, and the inner groove is scribed. machining. The tool on the circumference of the tool shaft is multiplied and symmetrically arranged to meet the groove scribe machining of the bearing diameter less than 5 mm. [Embodiment] The contents of the "fluid bearing groove machining tool" of the present invention are provided. And the resulting effects, in conjunction with the drawings, illustrate the preferred embodiment of the present invention as detailed below. Referring to the second drawing, the cylindrical groove processing tool 50 is arranged on the circumference of the first circular diameter 61, and a plurality of convex cutters 5 1 are arranged on the same circumference ring, which is called a group of cutters; Processing requirements, along the different axial positions of the tool, can be set up with multiple sets of tool sets, respectively, built on different circumferential circles. The axis of the cylindrical tool is hollow, and the inner diameter of each section of the section 5 3 can be gradually increased, gradually smaller, stepped, etc. depending on the direction of the pumping. The tool set on the circumference circle, between the tool and the tool, the axial pre-cracking (cutting) groove 5 2 is cut along the axial direction, and the cutting depth of the axial pre-cracking groove penetrates from the tool surface to the center hole. , or = penetrate to the center hole 'depends on the tool machining range (groove depth). The range of the pre-cracking groove can be less than the tip of the tool, and the structural strength of the tool can still be grasped by one body. The radial cut 3 product of the center hole changes with the axial direction, and the needle with the relative inclination (area) changes the front and rear movement mode, and the radial internal force is provided from the inside of the center hole to the 1 center hole. The sharpness of the pre-cracking groove allows the tool set of the tool surface to be flared in the radial direction 6 1331191. Before the ejector pin in the center hole has not been applied, the overall tooling of the overall tool is 60, which is smaller than the inner diameter ii of the shaft hole of the bushing to be machined, and the tool can enter the shaft hole. In order to avoid the size interference between the tool and the bearing hole, and to provide the cutting material discharge passage, the tool can be provided with a second circular diameter 5.9, the diameter is smaller than the first circular diameter 6 working direction pre-cracking groove design, please refer to the "third figure" As shown, a pre-cracking groove 521 having a surface pre-cutting depth that penetrates the tool surface to the center hole or is limited to the tool surface. When the radial force inside the center hole is 3 0, it utilizes the interference relationship of the inner diameter of the center <8* i #士士士, or the internal pressure of the ill hole increases with the gas/oil pressure flow, and the pre-cracking groove is oriented The radial extent of the external radiation field expansion depends on the depth of the groove machining, and the radius of the tool radius of the tool round surface also increases. "Refer to the “Fourth Diagram”, the center hole can be additionally designed, the axial pre-cracking groove of the tool body is cut, the tip of the guard is the most advanced, the front end is fixed by the fixing seat 55, ^, and the tool is the most Tip (see the second figure). Ditch tools can also be used with the shaft hole drill tool 5 7, combined with the function of the groove inside, without the need to change tools. The bearing inner groove machining program is described below.湳 湳 「 Refer to "fifth figure" ~ show 'the processing tool enters the shaft hole, the center hole thimble 5 4, can be inside the center hole, and then move, the thimble can timely resist the radial force of the center hole, the maximum tool Outer diameter " outside ^Μ 1〇 produces dimensional interference, with the processing tool ί=: ί65 'front and rear actuation mode', and thimble two way 68, cutting the inner wall of the sleeve, please refer to the "sixth figure" As shown, the center hole ejector pin can have a 7-slope thread design, with the thread of the center hole' thimble rotation actuation method 6.7, can also provide the force of the central hole radiating radially outward'. The maximum outer diameter of the tool is 6 2 The outer movement is in interference with the bearing 10, and the rotation of the machining tool is used. 6 5 'the front and rear actuation modes 6 6 and the ejector actuation mode 6 7 , 6 8 'cut the inner wall of the sleeve to machine the inner groove shape. Another type of processing tool of the present invention is designed such that the tooling diameter 60 of the tool is larger than the bearing diameter 11, and the first circular diameter 6 1 of the tool is slightly smaller than the inner diameter of the shaft hole. Please refer to the "seventh drawing". In order for the tool to smoothly enter the shaft hole, it is necessary to compress the maximum outer diameter of the tool to be smaller than the inner diameter of the shaft hole. Similarly, the axial pre-cracking groove is pre-cut on the circumference of the tool, but the area change gradient originally set in the center hole is changed to the outer diameter surface of the tool, and the radial cross-sectional area of the outer diameter sleeve 5 £ corresponds to each other. When the outer diameter sleeve moves forward and backward 6 4, the maximum circular diameter of the tool can be suppressed or relaxed, and the machining circle diameter of the tool can be changed to be slightly smaller than the bearing diameter, and the processing worker can smoothly enter the bearing. Please refer to the "Eighth Figure". By the front and rear actuation of the outer diameter sleeve 56, the radial machining range of the tool is changed, and the bearing 10 is in interference with the size of the bearing 10, and the rotation mode 6 5 is used. 6. The inner wall of the bushing is machined to form the inner groove shape. Between the dog and the dog 5 ΐ 5 1 and the processing tool, you can also use the slope snail, by the slope thread rotation mode 6 3, also:: the purpose of the rear movement, change the diameter of the tool and the bearing 1 〇 to produce size interference, In conjunction with the actuating mode 6 5, the inner wall of the 6 6 second knife" is used to machine the inner groove shape. 7 i, another design, change the cutting direction of the pre-cracking groove 'take the radial pre-cracking groove 5 2 2, please refer to the "Zhu Yu read the ninth map". In 1331191 [Simple description of the figure] The first picture: is a schematic diagram of the groove inside the general bearing. Second: A schematic view of a groove processing tool of the present invention. The third figure is a schematic diagram of the design of the axial pre-cracking groove of the present invention. Fourth Figure: is a schematic view of another groove processing tool of the present invention. Fig. 5 is a schematic view showing the groove processing mode of the present invention. Fig. 6 is a schematic view showing another groove processing mode of the present invention. Figure 7 is a schematic view of another groove processing tool of the present invention. Figure 8 is a schematic view of another groove processing method of the present invention. Figure 9 is a schematic view showing the design of the radial pre-cracking groove of the present invention. Figure 10 is a schematic view of a groove processing tool of the present invention. Eleventh drawing: A schematic view of another groove processing method of the present invention. [Main component symbol description] 10 ----- Bushing 11 -----bearing aperture 12 -----Rotary shaft 15-----sleeve oil chamber 21-----upper groove 23 -----Lower groove 30----- Radial force 35-----Gas/oil house source 50 -----Intergroove processing tool 51 -----Tool 521 ---- Axial pre-cracking (cutting) groove 522 ---- radial pre-cracking (cutting) groove 53 ----- center hole 54 ----- center hole ejector pin 55 ----- fixing seat 1331191 56 -- ---Outer diameter sleeve 57 -----Drill 58 -----Gas/Hydraulic fluid 59 -----Tool second diameter 60 -----Tool processing diameter 61 --- --The first diameter of the tool 62 -----The diameter of the tool after the tool is moved out 63 ----- The outer diameter sleeve rotates the action mode 64 -----The outer diameter sleeve is operated before and after 65 --- -- Manufacturing tool rotation mode 66 ----- Manufacturing tool before and after actuation mode 67 ----- thimble rotation actuation mode 68 ----- thimble before and after actuation mode 11