[go: up one dir, main page]

TWM358034U - Three-axle grinding equipment - Google Patents

Three-axle grinding equipment Download PDF

Info

Publication number
TWM358034U
TWM358034U TW97220908U TW97220908U TWM358034U TW M358034 U TWM358034 U TW M358034U TW 97220908 U TW97220908 U TW 97220908U TW 97220908 U TW97220908 U TW 97220908U TW M358034 U TWM358034 U TW M358034U
Authority
TW
Taiwan
Prior art keywords
grinding wheel
disposed
base
axis
sliding
Prior art date
Application number
TW97220908U
Other languages
Chinese (zh)
Inventor
yi-cheng Zhu
Original Assignee
Supertec Machinery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Supertec Machinery Inc filed Critical Supertec Machinery Inc
Priority to TW97220908U priority Critical patent/TWM358034U/en
Publication of TWM358034U publication Critical patent/TWM358034U/en

Links

Landscapes

  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Description

M358034 五、新型說明: 【新型所屬之技術領域】 本新型與用於磨削或拋光之機床有關,特別是指一種三 軌式的磨床設備。 【先前技術】 利用砂輪等刀具高速旋轉再對工件進行研磨加工的技 Φ 術,乃是相當習知且常用的技術,不過以往的磨床只有一個 刀具,因此當要使用不同的刀具對工件研磨,就必須更換刀 具,若刀具形式不能安裝在同一個磨床上,就必須將工件拆 下,更換另一個磨床進行加工,頗為不便; 於是本創作人在先前便開發出如中華民國專利申請案 號094208781、專利名稱「圓筒磨床之多功用砂輪主軸頭」 的技術所述,是在磨床上設置一個可旋轉的主軸頭,該主轴 φ 頭上又具有三個砂輪,利用旋轉該主軸頭改變對工件加工的 砂輪,便能分別對工件的外側及内側進行三種不同方式的加 工,可省去更換刀具或是改善磨床的缺點; ^ 由於上述砂輪頭配置有2個外砂輪及1個内孔砂輪,搭 配帶動工件旋轉的主輪台及支撐工件的尾座,適用於較小外 徑,長軸多段差之工件,相對於較大外徑,短且多内孔段差 之工件則顯不足; 本創作人便將工件與不同的砂輪配置在各個獨立的滑 3 M358034 軌上,而開發出 種二軌式的磨床設備 【新型内容】 本新型目的*担你M358034 V. New description: [New technical field] This new type relates to machine tools used for grinding or polishing, especially a three-track grinding machine. [Prior Art] The technique of grinding a workpiece at a high speed by using a tool such as a grinding wheel is a well-known and commonly used technique. However, the conventional grinding machine has only one tool, so when a different tool is used to grind the workpiece, It is necessary to change the tool. If the tool form cannot be installed on the same grinding machine, it is necessary to remove the workpiece and replace it with another grinding machine. This is quite inconvenient; therefore, the creator has previously developed a patent application number such as the Republic of China. 094208781, the patent name "multi-purpose grinding wheel spindle head of a cylindrical grinding machine" is described in the art of setting a rotatable spindle head on a grinding machine. The spindle φ has three grinding wheels on the head, and the workpiece is changed by rotating the spindle head. The machined grinding wheel can process the outer and inner sides of the workpiece in three different ways, which can eliminate the need to replace the tool or improve the disadvantage of the grinding machine. ^ Since the above grinding wheel head is equipped with two outer grinding wheels and one inner hole grinding wheel, With the main wheel table that drives the workpiece rotation and the tailstock that supports the workpiece, it is suitable for smaller outer diameter and long shaft multi-step difference. The workpiece, compared to the larger outer diameter, the workpiece with short and many inner hole steps is insufficient; the creator has placed the workpiece and different grinding wheels on the separate sliding 3 M358034 rails, and developed a two-track type. Grinder equipment [new content] This new purpose * for you

长供―種三軌式的磨床設備,是利用三組 執道分別帶動—個分A 似灭碩、—個内孔砂輪及一個外砂輪,使該 7頁良平/α Χ轴移動,該内孔砂輪水平沿Υ軸移動,該外砂 '平σ Υ軸移動’如此以該外砂輪及該内孔砂輪分別對固 疋在°亥爽頭的卫件的外側及内側進行研磨,能提升加工速度 與減少加工誤差。 為達刖述目的,該磨床設備包含一個基座、一個夾頭、 —個内孔砂輪及一個外砂輪,該基座上具有三組滑軌,其中 该第一滑軌沿X軸延伸,該第二滑軌及該第三滑軌沿γ軸延 伸,該夾頭設置在該基座的第一滑軌上,該内孔砂輪設置在 #該基座的第二滑軌上,該外砂輪設置在第三滑軌上; 當該夾頭上固定有工件,以第二滑軌之該内孔砂輪及 第三滑軌之該外砂輪便能直接對該工件的外侧、内側及端面 進行研磨,該内孔砂輪及該外砂輪位於同一磨床設備,免去 拆卸更換刀具的時間,減少加工上的誤差。 本新型另一目的在提供一種三執式的磨床設備,是增設 —個内砂輪’且該外砂輪與該内砂輪能以Ζ軸為中心轉動而 4 M358034 交互使用’便能使用該外砂輪對工件外側加工,以該内孔砂 輪及該内砂輪對工件内側加工,能配合不同轉速與孔徑使 用。 【實施方式] 本新型三軌式的磨床設備,實施例如第1及2圖所 包含:The long-supply three-track type grinder equipment is driven by three groups of obstructions - a sub-A like a destroyer, an inner hole grinding wheel and an outer grinding wheel, so that the 7-page flat/α axis moves, the inside The hole grinding wheel moves horizontally along the boring axis, and the outer sand 'flat σ Υ axis moves' so that the outer grinding wheel and the inner hole grinding wheel respectively grind the outer side and the inner side of the sturdy piece of the sturdy head, and can be lifted and processed Speed and reduce machining errors. For the purpose of the present invention, the grinder apparatus comprises a base, a collet, an inner bore grinding wheel and an outer grinding wheel, the base having three sets of slide rails, wherein the first slide rail extends along the X axis, The second slide rail and the third slide rail extend along the γ axis, the chuck is disposed on the first slide rail of the base, and the inner hole grinding wheel is disposed on the second slide rail of the base, the outer grinding wheel Provided on the third sliding rail; when the workpiece is fixed on the chuck, the outer grinding wheel of the second sliding rail and the outer grinding wheel of the third sliding rail can directly grind the outer side, the inner side and the end surface of the workpiece, The inner hole grinding wheel and the outer grinding wheel are located in the same grinding machine, eliminating the need to disassemble and replace the tool, and reducing the processing error. Another object of the present invention is to provide a three-stand type grinder device, which is to add an inner grinding wheel and the outer grinding wheel and the inner grinding wheel can rotate around the Ζ axis and 4 M358034 can be used interchangeably to use the outer grinding wheel pair. The outer side of the workpiece is machined, and the inner hole grinding wheel and the inner grinding wheel are processed on the inner side of the workpiece, and can be used with different rotation speeds and apertures. [Embodiment] The novel three-track type grinder device is embodied in, for example, Figures 1 and 2:

-個基座1G,具有第_、第二、第三等三組滑執^、 12、13’該各滑軌n、12、13具有—個執道⑴、Hu 及-個位移座112、122、132,該各執道ul、i2i、i3U 定在該基座10 ’該各㈣座112、122、132滑設在該各軌 道111、121、m,該第一滑執11沿X軸延伸,該第二滑 軌12及第三滑執13分別沿γ轴延伸; 一個夾頭20,具有一個容納孔2〇1及三個夹臂2〇2,該 三夾臂202排列在該容減2〇1周圍,將工件插入該容納孔 2〇1 ’再操作該三夾臂2〇2向該容納孔2〇1位移便能以該 三夾臂202夾住且固定工件,且該夾頭2〇設置在該基座1〇 的第-滑軌11的位移座112,驅動該第一滑軌u的位移座 112在邊第,滑軌u的軌道⑴上滑動,便能使該爽頭2〇 相對該基座1G沿X軸位移,另外,該失頭2()與該位移座 U2之間還能設置一個滑台21,使該夾頭2〇滑設在該滑台 21且沿Y軸位移,該滑台21設置在該位移座112上,由於 M358034 該滑台21及該夾頭20滑設在該滑台21的技術乃屬習知技 術,故於此不再加以贅述; 一個内孔砂輪30,呈圓柱狀且受一個馬達301驅動而 轉動,該内孔砂輪30設置在該基座10的第二滑軌12的位 移座122,驅動該第二滑軌12的位移座122在該第二滑軌 12的軌道121上滑動,便能使該内孔砂輪30相對該基座10 沿Y軸位移,另外,該内孔砂輪30與該位移座122之間還 φ 能設置一個滑台31,使該内孔砂輪30滑設在該滑台31且 沿X軸位移,該滑台31設置在該位移座122上,由於該滑 台31及該内孔砂輪30滑設在該滑台31的技術乃屬習知技 術,故於此不再加以贅述;以及 一個外砂輪40,呈圓盤狀且受一個馬達401驅動而轉 動,該外砂輪40具有相互垂直的一個側面402及一個切面 403,該外砂輪40設置在該基座10的第三滑執13的位移座 φ 132,驅動該第三滑軌13的位移座132在該第三滑軌13的 軌道131上滑動,便能使該外砂輪40相對該基座10沿Y '軸位移,該外砂輪40設在該位移座132的技術乃屬習知技 術,故於此不再加以贅述。 當該夾頭20上固定有工件A,以該第一滑執11或該夾 頭20的滑台21帶動該夾頭20沿X軸或Y轴位移,便能將 該工件A移動至預設的加工位置; 6 M358034 以该第三滑軌13帶動固定角度設置的該外砂輪m 軸位移,便能如第3及4圖所示,該外砂輪4〇呈傾斜且口以 該侧面402由該工件A的徑向對該工件A進行研磨加工,也 能如第5圖所示,該外砂輪4〇以該切面由該工件a的 軸向對該工件A進行研磨加工; 以該第二滑執12或該内孔砂輪30的滑台31帶動該内 孔砂輪30沿γ轴或X軸位移,便能如第6圖所示,該内孔 •砂輪30由該工件A的内側對該工件A進行研磨加工; 可知利用該第二滑執12及該第三滑執13分別帶動該内 孔砂輪30及該外砂輪40位移,便能分別使用該内孔砂輪 30及忒外輪4〇對§亥工件a進行研磨加工,具有在該磨床 設備上不需拆卸更換刀具,便能對1件的内側及外侧加工的 優點。 另外,該磨床設備還可如第7圖所示,將該外砂輪40 設置於一旋轉座41上,該旋轉座41上相對該外砂輪4〇的 一側設置一個内砂輪50,藉由旋轉座41旋轉便能改變使用 的為該内砂輪50或是該外砂輪40,如第8圖所示,讓該内 砂輪50能由該工件a的内側對該工件A進行研磨加工,且 °亥内砂輪50為低轉速大直徑,適合研磨大孔徑内孔,而該 内孔砂輪40為高轉速小直徑,適合研磨小孔徑内孔,能讓 加工領域更廣。 M358034 【圖式簡單說明】 第1圖本新型實施例的第一立體圖。 第2圖本新型實施例的第二立體圖。 第3圖本新型實施例外砂輪以側面研磨的示意圖。 第4圖本新型實施例外砂輪以側面研磨的另一示意圖。 第5圖本新型實施例外砂輪以切面研磨的示意圖。 第6圖本新型實施例内孔砂輪研磨的示意圖。 第7圖本新型實施例旋轉座上增設内砂輪的示意圖。 第8圖本新型實施例内砂輪研磨的示意圖。a pedestal 1G having three sets of slides _, second, third, etc., 12, 13 ′, each of the slide rails n, 12, 13 having one lane (1), Hu and one displacement seat 112, 122, 132, the respective lanes ul, i2i, i3U are set in the base 10'. The four (four) seats 112, 122, 132 are slidably disposed on the rails 111, 121, m, and the first slipper 11 is along the X axis. Extendingly, the second slide rail 12 and the third slide 13 respectively extend along the γ axis; a chuck 20 has a receiving hole 2〇1 and three clamping arms 2〇2, and the three clamping arms 202 are arranged in the capacity By subtracting 2〇1, inserting the workpiece into the receiving hole 2〇1' and then operating the three-clamping arm 2〇2 to the receiving hole 2〇1 can clamp and fix the workpiece with the three-clamping arm 202, and the clip The head 2 is disposed on the displacement seat 112 of the first slide rail 11 of the base 1 , and the displacement seat 112 driving the first slide rail u slides on the track (1) of the side rail and the slide rail u, so that the cool The head 2 is displaced along the X axis relative to the base 1G. In addition, a slide table 21 can be disposed between the head 2 () and the displacement seat U2, so that the chuck 2 is slidably disposed on the slide table 21 and Displaced along the Y axis, the slide table 21 is disposed on the displacement seat 112 due to M 358034 The technique of sliding the slide table 21 and the chuck 20 on the slide table 21 is a conventional technique, and therefore will not be described herein. A bore grinding wheel 30 is cylindrical and is driven by a motor 301 to rotate. The inner hole grinding wheel 30 is disposed on the displacement seat 122 of the second sliding rail 12 of the base 10, and the displacement seat 122 driving the second sliding rail 12 slides on the track 121 of the second sliding rail 12, so that The inner hole grinding wheel 30 is displaced along the Y axis relative to the base 10. In addition, a sliding table 31 can be disposed between the inner hole grinding wheel 30 and the displacement seat 122 to slide the inner hole grinding wheel 30 on the sliding table. And the sliding table 31 is disposed on the displacement base 122. Since the sliding table 31 and the inner hole grinding wheel 30 are slid on the sliding table 31, the technique is a conventional technique, and thus no longer And an outer grinding wheel 40 which is in the shape of a disk and is driven to rotate by a motor 401 having a side surface 402 and a cutting surface 403 which are perpendicular to each other, and the outer grinding wheel 40 is disposed on the base 10 The displacement seat φ 132 of the third slide 13 drives the displacement seat 132 of the third slide rail 13 on the track 13 of the third slide rail 13 The sliding of the upper grinding wheel 40 relative to the base 10 along the Y' axis, the technique of the outer grinding wheel 40 being disposed on the displacement seat 132 is a conventional technique and will not be described herein. When the workpiece A is fixed to the chuck 20, the workpiece A can be moved to the preset by the first slide 11 or the slide 21 of the chuck 20 driving the chuck 20 along the X-axis or the Y-axis. Processing position; 6 M358034 The third sliding rail 13 drives the m-axis displacement of the outer grinding wheel set at a fixed angle, as shown in Figures 3 and 4, the outer grinding wheel 4〇 is inclined and the mouth is closed by the side 402 The workpiece A is ground in the radial direction of the workpiece A, and as shown in Fig. 5, the outer grinding wheel 4 is ground by the cutting surface from the axial direction of the workpiece a; The sliding plate 12 or the sliding table 31 of the inner hole grinding wheel 30 drives the inner hole grinding wheel 30 to move along the γ axis or the X axis. As shown in Fig. 6, the inner hole grinding wheel 30 is covered by the inner side of the workpiece A. The workpiece A is subjected to a grinding process; it can be seen that the inner hole grinding wheel 30 and the outer grinding wheel 40 are respectively driven by the second sliding shoe 12 and the third sliding shoe 13 to respectively use the inner hole grinding wheel 30 and the outer wheel 4 §Hai workpiece a is ground and has the advantage of being able to machine the inside and outside of one piece without removing the tool at the grinding machine. . In addition, the grinding machine can also be disposed on a rotating base 41 on the rotating seat 41, and an inner grinding wheel 50 is disposed on a side of the rotating base 41 opposite to the outer grinding wheel 4, as shown in FIG. The rotation of the seat 41 can change whether the inner grinding wheel 50 or the outer grinding wheel 40 is used. As shown in Fig. 8, the inner grinding wheel 50 can be used to grind the workpiece A from the inner side of the workpiece a, and The inner grinding wheel 50 has a low rotation speed and a large diameter, and is suitable for grinding a large-aperture inner hole, and the inner-hole grinding wheel 40 has a high rotation speed and a small diameter, and is suitable for grinding a small-aperture inner hole, which can make the processing field wider. M358034 [Simplified description of the drawings] Fig. 1 is a first perspective view of the novel embodiment. Figure 2 is a second perspective view of the novel embodiment. Fig. 3 is a schematic view showing the side grinding of the exception grinding wheel. Fig. 4 is a schematic view showing another embodiment of the present invention in which the grinding wheel is side-grinded. Fig. 5 is a schematic view showing the grinding of the exception grinding wheel in a face-to-face manner. Fig. 6 is a schematic view showing the grinding of the inner hole grinding wheel of the novel embodiment. Fig. 7 is a schematic view showing the addition of an inner grinding wheel to the rotating base of the novel embodiment. Figure 8 is a schematic view of the grinding of the grinding wheel in the novel embodiment.

【主要元件符號說明】 《本新型》 基座10 第一滑軌11 第二滑軌12 第三滑軌13 軌道 111、121、131 位移座 112、122、132 夾頭20 容納孔201 夹臂202 滑台21 内孔砂輪30 馬達301 滑台31 外砂輪40 馬達401 側面402 切面403 旋轉座41 内砂輪50[Main component symbol description] "The present invention" Base 10 First slide rail 11 Second slide rail 12 Third slide rail 13 Tracks 111, 121, 131 Displacement seats 112, 122, 132 Chuck 20 Housing hole 201 Grip arm 202 Slide table 21 Inner hole grinding wheel 30 Motor 301 Slide table 31 Outer grinding wheel 40 Motor 401 Side 402 Cut surface 403 Rotary seat 41 Inner grinding wheel 50

Claims (1)

M358034 六、申請專利範圍: 1. 一種三軌式的磨床設備,包含: 一個基座,具有三組滑軌,該第一滑軌沿X轴延伸,該 第二滑執及該第三滑軌沿γ軸延伸; 一個夾頭,設置在該基座的第一滑軌上,該夾頭供夾住 且固定工件,該夾頭並受該第一滑軌帶動而相對該基座沿X 轴位移; 一個内孔砂輪,呈圓柱狀且受一個馬達驅動而轉動,該 内孔砂輪設置在該基座的第二滑軌上,該内孔砂輪並受該第 二滑軌帶動而相對該基座沿Y轴位移;以及 一個外砂輪,呈圓盤狀且受一個馬達驅動而轉動,該外 砂輪具有相互垂直的一個側面及一個切面,該外砂輪設置第 三滑軌上,該外砂輪並受該第三滑軌帶動而相對該基座沿Y 轴位移。 2. 如申請專利範圍第1項所述三軌式的磨床設備,其中該 基座的三滑軌各具有一個軌道及一個位移座,該各軌道固定 在該基座’該各位移座滑設在該各軌道’該失頭設置在該第 一滑軌的位移座,該内孔砂輪設置在該第二滑軌的位移座, 該外砂輪設置在該第三滑軌的位移座。 3. 如申請專利範圍第1項所述三軌式的磨床設備,其中該 M358034 夾頭具有一個容納孔及三個夾臂,該三夾臂排列在該容納孔 周圍且供夾住固定工件。 4. 如申請專利範圍第1項所述三轨式的磨床設備,其中該 夾頭與該第一滑執之間設置一個滑台,使該夹頭滑設在該滑 台且沿Y軸位移,該滑台設置在該第一滑軌上。 φ 5. 如申請專利範圍第1項所述三軌式的磨床設備,其中該 内孔砂輪與該第二滑執之間設置一個滑台,使該内孔砂輪滑 設在該滑台且沿X軸位移,該滑台設置在該第二滑軌上。 6. 如申請專利範圍第1項所述三軌式的磨床設備,其中該 外砂輪設置在一個旋轉座,該旋轉座以Z軸為中心樞設在該 基座的第三滑軌上,該旋轉座上並設置一個内砂輪,旋轉該 φ 旋轉座便能改變使用的為該内砂輪或是該外砂輪。 10M358034 VI. Scope of Application: 1. A three-track grinding machine comprising: a base having three sets of slide rails, the first slide rail extending along the X axis, the second slide and the third slide rail Extending along the gamma axis; a collet disposed on the first slide rail of the base, the collet for clamping and fixing the workpiece, the collet being driven by the first slide rail relative to the base along the X axis Displacement; an inner bore grinding wheel that is cylindrical and is driven to rotate by a motor. The inner bore grinding wheel is disposed on a second sliding rail of the base, and the inner bore grinding wheel is driven by the second sliding rail relative to the base The seat is displaced along the Y-axis; and an outer grinding wheel is in the shape of a disk and is driven to rotate by a motor. The outer grinding wheel has a side surface and a cutting plane perpendicular to each other, and the outer grinding wheel is disposed on the third sliding rail, and the outer grinding wheel is Driven by the third slide rail and displaced relative to the base along the Y axis. 2. The three-track type grinder device according to claim 1, wherein the three slide rails of the base each have a track and a displacement seat, and the tracks are fixed to the base. In the respective tracks, the lost head is disposed on the displacement seat of the first sliding rail, the inner grinding wheel is disposed on the displacement seat of the second sliding rail, and the outer grinding wheel is disposed on the displacement seat of the third sliding rail. 3. The three-track type grinder apparatus according to claim 1, wherein the M358034 collet has a receiving hole and three clamping arms, and the three clamping arms are arranged around the receiving hole for clamping the fixed workpiece. 4. The three-track type grinder apparatus according to claim 1, wherein a sliding table is disposed between the chuck and the first sliding handle, so that the chuck slides on the sliding table and is displaced along the Y-axis. The slide is disposed on the first slide rail. Φ 5. The three-track type grinder device according to claim 1, wherein a sliding table is disposed between the inner hole grinding wheel and the second sliding plate, so that the inner hole grinding wheel is slid on the sliding table and along the same The X-axis is displaced, and the sliding table is disposed on the second sliding rail. 6. The three-track type grinder device according to claim 1, wherein the outer grinding wheel is disposed on a rotating seat, and the rotating seat is pivotally disposed on a third sliding rail of the base with the Z axis as a center. Rotate the seat and set an inner grinding wheel. Rotate the φ rotating seat to change whether the inner grinding wheel or the outer grinding wheel is used. 10
TW97220908U 2008-11-21 2008-11-21 Three-axle grinding equipment TWM358034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97220908U TWM358034U (en) 2008-11-21 2008-11-21 Three-axle grinding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97220908U TWM358034U (en) 2008-11-21 2008-11-21 Three-axle grinding equipment

Publications (1)

Publication Number Publication Date
TWM358034U true TWM358034U (en) 2009-06-01

Family

ID=44380311

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97220908U TWM358034U (en) 2008-11-21 2008-11-21 Three-axle grinding equipment

Country Status (1)

Country Link
TW (1) TWM358034U (en)

Similar Documents

Publication Publication Date Title
CN201361814Y (en) Three-track grinding machine equipment
JP5576868B2 (en) Gear cutting grinder and method for dressing grinding tools
TWI381905B (en) Three-track grinding machine
CN101541473B (en) Method for grinding a machine part, and grinding machine for carrying out said method
CN103878656B (en) Double-faced forming grinding machine
CN103264325A (en) Grinding machine tool for grinding dry screw rotor
CN101326032B (en) Neck grinding device, grinding device used in the neck grinding device, and neck grinding method
JP6858539B2 (en) Grinding device
US9011208B2 (en) Dual-spindle grinder
CN106141868A (en) A Double Wheelhead Grinding Machine with Automatic Grinding Function
JP4466142B2 (en) Machine tool with steady rest
CN205394010U (en) Turning and grinding compound machine
JP5475343B2 (en) Rotary saw grinding equipment
JP2004174627A (en) Cutting and grinding method and device for it
TWM358034U (en) Three-axle grinding equipment
JP6197567B2 (en) Truing method and truing device
JP6151529B2 (en) Grinding method of sapphire wafer
CN106541457A (en) A kind of beads lathe
CN205968560U (en) A Double Wheelhead Grinding Machine with Automatic Grinding Function
CN216883179U (en) Head walking type follow-up grinding machine suitable for processing inner and outer curves
US20070161344A1 (en) Tool independent dust protection apparatus and associated dust protection methods
CN114074278A (en) A deweight machine based on the dynamic balance mechanism of the turbocharger rotor shaft
KR101197390B1 (en) Drill Grinder
CN102672566A (en) Horizontal high-speed spindle centre hole grinding machine
CN112548681A (en) Multi-cutter multi-angle combined machining machine tool