M344932 八、新型說明： 【新型所屬之技術領域】 本新型是關於一種氣罩式集塵裝置，特別是指一種可 以清除雷射加工所產生之粉塵，並利用氣罩來協助粉塵清 除工作之雷射鑽孔機的氣罩式集塵裝置。 【先前技術】 雷射鑽孔機是一種可產生雷射光束，並將雷射光束引 導至工件表面，使該工件因局部熔化而形成鑽孔之專用器 具。由於雷射光束是經過專用光學系統聚焦後成為一個非 常小的光點以熔化工件的局部區域，故加工時不僅具有較 高的能量密度，雷射光束本身對於工件也無機械衝壓力， 因此’很適合用來加工硬度高以及精密複雜之工件。 參閱圖1，習知雷射鑽孔機1係可產生雷射光束，並且 將雷射光束投射到一工件1〇上，以利用光點來熔化工件1〇 局部區域而形成鑽孔。為了達到以上目的，一般雷射鑽孔 機1通常包含：一個與工件10上下間隔並位在該工件1〇 上方的集塵主座11、一個位在該集塵主座n之一光束通孔 ill上方的聚焦鏡12、一個可產生雷射光源的雷射光產生器 13，以及一個氣流產生裝置14。該集塵主座u還具有一個 平仃於工件10之一表面1〇1的通道112，以及一個和光束 通孔U1上下對應的粉塵排出孔113，所述氣流產生裝置14 具有位在通道112相反端之一供氣單元141、一抽氣單元 142 〇 當雷射光源經過聚焦鏡12投射到工件1〇的表面時， 5 M344932 该工件10的表面1〇1被照射的局部區域會產生熔化，此時 被^谷化的材料會因氣化而產生往四周濺射的粉塵，在此同 時’藉由氣流產生裝置14的作用，可以在通道112内形成 一股如圖1箭頭所示的氣流，此股氣流可以將雷射加工所 產生的粉塵先吸入通道112後再帶離集塵主座U，藉此達 到清除雷射加工所產生之粉塵的目的。 習知雷射鑽孔機丨雖然可以利用氣流在進出通道112所 產生的吸力，將粉塵吸進該粉塵排出孔113，然後隨著氣流 一起被排出，但是在集塵的過程中卻發現，雷射光束作用 在工件10之表面10丨時，所產生的粉塵是往四周散佈，亦 即，有些粉塵會因為往上濺而鄰近粉塵排出孔丨丨3，此時通 這112内部產生的吸力就可以將粉塵吸入再一起排出，但往 周圍四濺的粉塵如果離粉塵排出孔113較遠時，通道112内 部的吸力就無法將這些粉塵吸入通道112，此時，散佈的粉 塵就會往四周飄散，影響到工作環境的空氣品質。因此， 如何讓雷射加工產生的粉塵盡可能地藉由通道112排放到預 定位置，乃為雷射鑽孔機丨設計上待改進之課題。 【新型内容】 本新型之目的是在提供一種可以改善工作環境之空氣 品質的雷射鑽孔機之氣罩式集塵裝置。 本新型氣罩式集塵裝置是架設在雷射鑽孔機之一雷射 產生裝置及-工件之間’並可讓一氣流通過，所述雷射產 生裝置可產生一雷射光束，而該工件具有—個表面，本新 型之氣罩式集塵裝置包含：—鄰近該雷射產生裝置之集塵 6 M344932 主座、-個安裝在集塵主座上並朝向工件的喷氣座，以及 個提供该喷氣座氣體的進氣單元。該集塵主座包括一個 界定出一通道的座壁，於座壁上具有一個供雷射光束通過 的粉塵排出孔’而該噴氣座具有數個圍繞雷射光束的喷氣 孔，母個贺氣孔都具有一個朝向工件的噴氣端。 ^本新型的有益功效在於··當進氣單元將氣體送入該喷 氣座，且喷氣孔喷出的氣流喷向工件時，會在喷 及工 件之間形成-個圍繞雷射光束的氣罩，此氣罩可以避免雷 射加工所產生的粉塵往四周擴散，藉此達到改善工作環境 之空氣品質的目的。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配曰參考圖式之較佳實施例的詳細說明中，將可清楚 的呈現。 在本新型被詳細描述之前，要注意的是，在以下的說 明内容中，類似的元件是以相同的編號來表示。 參閱圖2、3、4,本新型氣罩式集塵裝置2〇之第一較 佳實施例為雷射鑽孔機的—個元件，所述雷射鑽孔機可在 -工件21上進行鑽孔加工，上述工件21具有一個朝向集 塵裝置20的表面2U，此表面211具有一個承接雷射光束 的加工區域212。而該雷射鑽孔機還包含：一個產生雷射光 束之雷射產生裝置22，以及—個產生—氣流的氣流產生裝 置23。本實施例之氣罩式集塵裝置2〇包含：一個位在雷射 產生裝置22及工件21之間的集塵主座3、—個位在該集塵 M344932 主座3下方的喷氣座4，以及一個可將氣體導入該噴氣座4 的進氣單元5。 本實施例之集塵主座3包括一個界定出一橫向通道31 之座壁32，該座壁32具有一個位於上方之光束通孔32i， 以及一個位於下方之粉塵排出孔322,其中粉塵排出孔322 對應工件21的加工區域212，該光束通孔321是和粉塵排 出孔322上下對應。而雷射產生裝置22產生的雷射光束是 經過光束通孔321、粉塵排出孔322後，投射到工件21之 表面211上。 本實施例之噴氣座4包括一個中空環形之底座部41、 一個蓋設在該底座部41上並為中空環形結構的蓋板部42， 以及一個夾設在該底座部41及蓋板部42間的防漏環43。 該底座部41具有一個中空環形之底環壁411、一個自該底 環壁411往上延伸的圍繞環壁412、一條環形並由圍繞環壁 412頂面在下凹設的連通道413，以及數個等角度設置並貫 穿底環壁411的噴氣孔414,上述喷氣孔414和雷射光束是 等距離设置’即其係圍繞雷射光束的一個中心線呈圓形排 列’每個喷氣孔414都具有一個與連通道413連通的入氣 端415，以及一個與入氣端415間隔並朝向工件21之表面 211的喷氣端416，上述噴氣孔414之直徑小於該進氣道44 之底面的寬度。 本實施例之進氣單元5包括一個氣體產生器51，以及 ~條連通該氣體產生n 51及喷氣座4之連通道413的連通 管52。 8 M344932 本實施例之氣罩式集塵裝置20在使用時，雷射鑽孔機 之氣μ產生裝置23所產生的氣體源源不斷地通過集塵主座 3之通迢31，而雷射產生裝置22所產生的雷射光束則是通 過粉塵排出孔322後，直接照射在工件21之表面211，藉 7讓件21的加工區域212產生溶化的現象，最後形成 鑽孔而在工件21被加工形成鑽孔的過程中，該進氣單元 5產生的氣體會由連通管52送入噴氣座4之連通道‘η内 ，刖述氣體再由截面積縮小之各個噴氣孔414喷出，由於 前述喷氣孔414之噴氣端416是對應工件21之表面211， 並且圍繞在粉塵排出孔322的周圍，因此，由各個喷氣孔 414喷出的氣體會因此形成一個圍繞雷射光束的氣罩，此氣 罩可以將工件21在雷射加工時所產生的粉塵完整地包圍， 被包圍之粉塵在受到通道31内流體的牵引，會逐漸地被帶 到預疋位置收集，故本實施例該項設計確實可避免粉塵往 周圍擴散，進而達到改善工作環境之空氣品質的目的。 參閲圖5、6，本新型氣罩式集塵裝置2〇之第二較佳實 施例亦包含：一集塵主座3、一噴氣座4，以及一個將氣體 达入該喷氣座4之進氣單元5。該喷氣座4同樣包括一個底 座部41、一個蓋板部42，以及一個防漏環43，於底座部 41上亦具有一個底環壁411、一個圍繞環壁412，以及一條 環形之連通道413。 本實施例與第一實施例的差別在於：該底座部41還具 有一個位在連通道413下方的組裝環槽417，而該喷氣座4 還包括一個固定地安裝在該組裝環槽417内的噴氣環44， 9 M344932 ㈣氣環44是-種多孔性或透氣性材料製成之多孔質中空 ㈣座體’在本實施例中，該多孔性或透氣性材料可選自 •粕末狀之冶金陶瓷、玻璃陶瓷及氧化鋁等等，於喷氣孔 上並-有數個不規則並可讓氣體由連通道413噴向工件（ 圖未不）的噴氣孔441。肖前述多孔質噴氣環44 _組裝，可 以讓形成之乳罩的結構更為密實、完整，&因此達到較佳 的阻隔效果。 +研琢氣罩式M344932 VIII. New description: [New technical field] The present invention relates to a hood type dust collecting device, in particular to a kind of dust which can remove dust generated by laser processing and utilize hood to assist dust removal work. A hood-type dust collecting device for a drilling machine. [Prior Art] A laser drilling machine is a special device that generates a laser beam and directs the laser beam to the surface of the workpiece to form a hole for local melting. Since the laser beam is focused by a dedicated optical system and becomes a very small spot to melt a local area of the workpiece, the machining not only has a high energy density, but the laser beam itself has no mechanical pressure on the workpiece, so It is ideal for machining workpieces with high hardness and precision. Referring to Figure 1, a conventional laser drill 1 is capable of generating a laser beam and projecting a laser beam onto a workpiece 1 to utilize a spot to melt a local region of the workpiece to form a bore. In order to achieve the above objective, the general laser drilling machine 1 generally comprises: a dust collecting main seat 11 spaced above and below the workpiece 10 and positioned above the workpiece 1 、, and a light beam through hole at the dust collecting main seat n A focusing mirror 12 above the ill, a laser light generator 13 that produces a laser source, and an airflow generating device 14. The dust collecting main seat u further has a passage 112 which is flat on one surface 1〇1 of the workpiece 10, and a dust discharge hole 113 corresponding to the upper and lower sides of the light beam through hole U1, and the airflow generating device 14 has a position in the passage 112. At the opposite end, one of the gas supply unit 141 and the pumping unit 142, when the laser light source is projected through the focusing mirror 12 to the surface of the workpiece 1 , 5 M344932 is partially melted by the surface 1 〇 1 of the workpiece 10 At this time, the material which is granulated by the vaporization generates dust which is sputtered around, and at the same time, by the action of the airflow generating device 14, a groove as shown in FIG. 1 can be formed in the passage 112. The air flow, the air flow can take the dust generated by the laser processing into the channel 112 and then away from the dust collecting main U, thereby achieving the purpose of removing the dust generated by the laser processing. Although the conventional laser drilling machine can utilize the suction force generated by the airflow in the inlet and outlet passage 112, the dust is sucked into the dust discharge hole 113, and then discharged together with the airflow, but it is found in the process of collecting dust. When the beam is applied to the surface 10 of the workpiece 10, the generated dust is scattered around, that is, some dust will be discharged from the hole 3 due to the splashing of the dust, and the suction generated inside the 112 is The dust can be sucked in and discharged together, but if the dust splashed around is far away from the dust discharge hole 113, the suction inside the passage 112 cannot suck the dust into the passage 112, and at this time, the scattered dust will be scattered around. , affecting the air quality of the working environment. Therefore, how to discharge the dust generated by the laser processing to the predetermined position by the passage 112 is a problem to be improved in the design of the laser drilling machine. [New content] The purpose of the novel is to provide a hood-type dust collecting device for a laser drilling machine which can improve the air quality of a working environment. The novel hood type dust collecting device is installed between one of the laser generating devices and the workpiece and can pass a gas flow, and the laser generating device can generate a laser beam, and the laser generating device can generate a laser beam. The workpiece has a surface, and the hood type dust collecting device of the present invention comprises: - a dust collecting portion adjacent to the laser generating device 6 M344932 main seat, a jet seat mounted on the dust collecting main seat and facing the workpiece, and An air intake unit for the jet seat gas is provided. The dust collecting main seat includes a seat wall defining a passage, and a dust discharge hole for the laser beam passing through the seat wall, and the jet seat has a plurality of gas jet holes surrounding the laser beam, and the female air hole They all have a jet end facing the workpiece. The beneficial effect of the novel is that when the air intake unit feeds the gas into the jet seat and the airflow from the gas jet hole is sprayed toward the workpiece, a hood surrounding the laser beam is formed between the spray and the workpiece. The hood can prevent the dust generated by the laser processing from spreading around, thereby achieving the purpose of improving the air quality of the working environment. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. Referring to Figures 2, 3 and 4, a first preferred embodiment of the novel hood-type dust collecting device 2 is a component of a laser drilling machine which can be carried out on a workpiece 21. For drilling, the workpiece 21 has a surface 2U facing the dust collecting device 20, the surface 211 having a processing region 212 for receiving a laser beam. The laser drilling machine further comprises: a laser generating device 22 for generating a laser beam, and a gas generating device 23 for generating a gas stream. The hood type dust collecting device 2 of the present embodiment includes: a dust collecting main seat 3 positioned between the laser generating device 22 and the workpiece 21, and a jet seat 4 positioned below the main seat 3 of the dust collecting M344932 And an air intake unit 5 that can introduce a gas into the jet seat 4. The dust collecting main seat 3 of the present embodiment includes a seat wall 32 defining a transverse passage 31 having a light beam through hole 32i located above and a dust discharge hole 322 located below, wherein the dust discharge hole 322 corresponds to the processing region 212 of the workpiece 21, and the light beam through hole 321 is vertically corresponding to the dust discharge hole 322. The laser beam generated by the laser generating device 22 passes through the light beam through hole 321 and the dust discharge hole 322, and is projected onto the surface 211 of the workpiece 21. The air jet seat 4 of the present embodiment includes a hollow annular base portion 41, a cover portion 42 which is disposed on the base portion 41 and has a hollow annular structure, and a base portion 41 and a cover portion 42 are sandwiched therebetween. Leakproof ring 43 between. The base portion 41 has a hollow annular bottom ring wall 411, a surrounding ring wall 412 extending upward from the bottom ring wall 411, a connecting passage 413 which is annularly formed and recessed by a top surface surrounding the annular wall 412, and The air holes 414 are disposed at equal angles and through the bottom ring wall 411. The gas jet holes 414 and the laser beams are equidistantly disposed 'that is, they are arranged in a circle around a center line of the laser beam'. Each of the gas jet holes 414 There is an inlet end 415 that communicates with the passage 413, and a jet end 416 that is spaced from the inlet end 415 and faces the surface 211 of the workpiece 21. The diameter of the gas injection orifice 414 is smaller than the width of the bottom surface of the inlet passage 44. The air intake unit 5 of the present embodiment includes a gas generator 51, and a communication tube 52 that communicates with the gas to generate n 51 and the connecting passage 413 of the jet seat 4. 8 M344932 In the use of the hood type dust collecting device 20 of the present embodiment, the gas generated by the gas generating device 23 of the laser drilling machine continuously passes through the venting 31 of the dust collecting main seat 3, and the laser is generated. The laser beam generated by the device 22 passes through the dust discharge hole 322 and directly illuminates the surface 211 of the workpiece 21, thereby causing a melting phenomenon in the processing region 212 of the workpiece 21, and finally forming a drill hole to be processed in the workpiece 21. During the formation of the borehole, the gas generated by the intake unit 5 is sent from the communication pipe 52 into the connecting passage 'n of the jet seat 4, and the gas is again ejected by the respective gas injection holes 414 whose cross-sectional area is reduced. The gas jet end 416 of the gas injection hole 414 is a surface 211 corresponding to the workpiece 21, and surrounds the dust discharge hole 322. Therefore, the gas ejected from each of the gas injection holes 414 thus forms a gas hood surrounding the laser beam. The cover can completely surround the dust generated by the workpiece 21 during the laser processing, and the surrounded dust is gradually drawn by the fluid in the channel 31, and is gradually collected to the pre-position position, so the design of the embodiment is indeed can Free of dust to the surrounding diffuse, and thus achieve the air quality improve the working environment of purpose. Referring to Figures 5 and 6, the second preferred embodiment of the present hood-type dust collecting device 2 includes a dust collecting main seat 3, a jet seat 4, and a gas entering the jet seat 4. Air intake unit 5. The jet seat 4 also includes a base portion 41, a cover portion 42, and a leakage preventing ring 43. The base portion 41 also has a bottom ring wall 411, a surrounding ring wall 412, and an annular connecting passage 413. . The difference between this embodiment and the first embodiment is that the base portion 41 further has an assembly ring groove 417 located below the connecting passage 413, and the jet seat 4 further includes a fixedly mounted in the assembly ring groove 417. Jet ring 44, 9 M344932 (4) Air ring 44 is a porous hollow (four) seat body made of a porous or gas permeable material. In this embodiment, the porous or gas permeable material may be selected from the group consisting of Metallurgical ceramics, glass ceramics, alumina, etc., are placed on the gas venting holes and there are a plurality of irregularities and gas jets 441 which are sprayed by the connecting passages 413 toward the workpiece (not shown). The aforementioned porous jet ring 44 _ assembly can make the structure of the formed bra more dense and complete, thus achieving a better barrier effect. + mortar hood
々 小王取五一—人目丨丄，田軋流形成之 虱罩為但就本新型之創作目的而言，產生的氣罩並 不以圓形為限，即只要能夠界定出—個封閉的區間，且气 區間是圍繞雷射光束即可，因此，本新型第—較佳實施;; 之噴乳孔414的排列方式，以及第二較佳實施例之喷氣環 44的截面形狀，皆不以實施例所揭露之圓形為限。此夕卜，< 本新型之進氣單元5的氣體產生器51亦可和氣流產生裝置 23的氣體產生器（圖未示）共用，即本新型可利用管路的連接 ’讓氣體產生器51可以同時提供通道31及噴氣座4所需 流體。 惟以上所述者，僅為本新型之較佳實施例而已， ，以此限定本新型實施之範圍，即大凡依本新型中言主二 範圍及新型說明内容所作之简置 分W 乏間早的荨效變化與修飾， 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖！是-種習知具有集塵裝置之雷射鐵孔機的側視示 10 M344932 較佳實施例的使 置與一雷射鑽孔 ® 2是本新型氣罩式集塵裝置之宽― 用狀能# & "參考示意圖，顯示該氣罩式集塵農 機1上其他裝置的配合關係； & 立體分解圖，單獨顯示 圖3是該第一較佳實施例之一 该氣罩式集塵裝置之一喷氣座； y是該第-較佳實施例之-側視局部放大圖； 固5疋一類似圖4的側視局部放大圖，顯示本新型集 塵裝置之第二較佳實施例；及 圖6是該第二較佳實施例之一立體分解圖，單獨顯示 ^氣罩式集塵裝置之嘴氣座。 11 M344932 【主要元件符號說明】々小王取五一—人目丨丄, the field rolling flow is formed by the cover, but for the purpose of this new creation, the hood produced is not limited to a circle, that is, as long as it can define a closed The interval and the gas interval are around the laser beam. Therefore, the arrangement of the spray holes 414 of the present preferred embodiment; and the cross-sectional shape of the jet ring 44 of the second preferred embodiment are not The circular shape disclosed in the embodiment is limited. Further, the gas generator 51 of the air intake unit 5 of the present invention can also be shared with the gas generator (not shown) of the airflow generating device 23, that is, the novel can utilize the connection of the pipeline to make the gas generator 51 can provide both the passage 31 and the fluid required for the jet seat 4. However, the above description is only the preferred embodiment of the present invention, so as to limit the scope of the implementation of the present invention, that is, the simple set of the content of the main body of the present invention and the new description content is short. The changes and modifications of the effects are within the scope of this new patent. [Simple diagram of the diagram] Figure! It is a side view of a conventional laser iron machine with a dust collecting device. 10 M344932 The preferred embodiment of the laser drilling device 2 is the width of the novel hood type dust collecting device. Can refer to the schematic diagram showing the cooperation relationship of other devices on the hood type dust collecting agricultural machine 1; & stereo exploded view, separately shown in Fig. 3 is a hood type set of one of the first preferred embodiments a jet seat; y is a partial enlarged view of the first preferred embodiment - a side view, a partial enlarged view similar to that of FIG. 4, showing a second preferred embodiment of the present dust collecting device And FIG. 6 is an exploded perspective view of the second preferred embodiment, showing the mouth air seat of the air hood type dust collecting device separately. 11 M344932 [Main component symbol description]
20 集塵裝置 412 圍繞環壁 21 工件 413 連通道 211 表面 414 喷氣孔 212 加工區域 415 入氣端 22 雷射產生裝置 416 喷氣端 23 氣流產生裝置 417 組裝環槽 3 集塵主座 42 蓋板部 31 通道 43 防漏環 32 座壁 44 喷氣壞 321 光束通孔 441 喷氣孔 322 粉塵排出孔 5 進氣單元 4 喷氣座 51 氣體產生器 41 底座部 52 連通管 411 底環壁20 Dust collecting device 412 around the ring wall 21 Work piece 413 Connecting channel 211 Surface 414 Jet hole 212 Processing area 415 Inlet end 22 Laser generating device 416 Jet end 23 Air flow generating device 417 Assembly ring groove 3 Dust main seat 42 Cover portion 31 Channel 43 Leakproof ring 32 Seat wall 44 Jet 321 Beam through hole 441 Jet hole 322 Dust discharge hole 5 Intake unit 4 Jet seat 51 Gas generator 41 Base portion 52 Connecting tube 411 Bottom ring wall
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