200950929 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種用於吸取圓形工件之吸取裝置。 【先前技術】 目前所使用之吸取裝置包括一管體，一與所述管體之 一端連通之吸力源，一與所述管體之另一端連通且與該管 體同軸之吸取部。在進行吸取圓形工件中心之作業時，往 ❹往需要操作人員人為地判定該吸取部是否已經對準圓形工 件之中心，不但費時費力，且人為判定存在極大之誤差， 無法確保吸取裝置可以準確地吸取該圓形工件中心。 【發明内容】 有鑒於此，有必要提供一種能夠準確吸取圓形工件中 心之吸取裝置。 一種吸取裝置，用於吸取圓形工件，其包括一管體， 一與所述管體之一端連通之吸力源，一與所述管體之另一 ❹端連通且與該管體同軸之吸取部及套設於該管體上之至少 兩個，對之導正部。每個導正部活動地套設於所述管體 上每個導正部分別具有一用於推動並導正所述圓形工件 之挾持端。當所述至少兩個導正部挾合時，至少一導正部 之挾持知推動6亥圓形工件邊緣。當該至少一導正部與其餘 導正。卩之挾持端挾合時，所述至少兩個導正部之挾持端形 成與所述圓形工件外徑相同並與該吸取部同轴之收容空 間迫使該圓形工件之軸心與該吸取部之軸心重合，從而 確保吸取部能夠吸取該圓形工件之中心。 200950929 相對於先前技術，該吸取裝置通過套設於該管體上之 .至乂兩個導正部之挾持端形成一與所述圓形工件外徑相同 並與該吸取部同轴之收容空間，迫使圓形工件與該吸取部 .同軸。實現該吸取部準確地吸取該圓形工件之中心。 【實施方式】 下面將結合附圖，舉以下較佳實施方式並配合圖式詳 細描述如下。 ❹ 請一併參見圖1至圖4,本發明第一實施方式提供之 一種吸取裝置100，用於吸取圓形工件6〇，其包括一管體 3〇，一與所述管體30之一端連通之吸力源2〇，一與該管 體30之另一端連通且與該管體3〇同軸之吸取部％及兩個 相對設置之導正部40。每個導正部4〇具有一挾持端42。 所述管體30具有一套設端32。所述吸取部5〇包括一安裝 端52。該套設端32通過與該安裝端52之過盈配合，將該 吸取部50安裝於所述管體3〇上，用以吸取一圓形工件 ❹60。所述管體30還包括兩個相對設置之凸出部％。每個 導正部40上分別開設與所述凸出部34相配合之安裝通孔 44 ’使每個導正部40可活動之套設在所述管體川上。結 合圖3及圖4，說明該吸取裝置100之求心原理：當吸取 裝置100之吸取部50吸取所述圓形工件6〇，且該圓形工 件60之軸心70偏離該吸取部50之軸心80時，使所述兩 個導正部40挾合。其中一導正部40之挾持端42推動該圓 形工件60邊緣，當與另一導正部40之挾持端42挾合時， 所述兩個導正部40之挾持端42形成一與所述圓形工件6〇 200950929 外徑相同並與該吸取部5G同軸之圓形收容空間，迫使該偏 〜之圓形工件6〇之軸心7〇與該吸取部％之軸心8〇重合， •從而確保吸取部5〇能夠吸取該圓形工件⑽之中心。口 •、可以理解，所述安裝通孔44可開設為圓孔，擴圓孔及 /或方孔等形狀，所述凸出部34對應地設置成圓柱，梅圓 柱及/或方柱等形狀。所述凸出部34至少為兩個，且安裝 通孔44對應凸出部34之數目與位置相應開設。所形成之 ❹收容空間還可採用圓心角大於18〇。之扇形收容空間。 參見圖5,本發明第二實施方式提供之吸取裝置 100a，其與第一實施方式提供之吸取裝置100之不同之處 在於，所述安裝端52a具有一外螺紋54a，所述套設端 具有與所述安裝端52&之外螺紋54a相配合之内螺紋（圖 未示）。通過該套設端32a與該安裝端52a之間之螺紋配 合，從而將該吸取部50a安裝於該管體3〇a上。 參見圖6，本發明第三實施方式提供之吸取裝置 ❹100b，其與第一實施方式提供之吸取裝置1〇〇之不同:處 在於，每個凸出部34b套設一自然長度小於該凸出部3仆 之長度之彈簧36b。所述導正部40b挾合時，將會使所述 彈簧36b受壓形變，當挾合所述導正部4〇b之外力撤銷後， 所述彈簧36b回覆形變而產生彈力使兩個導正部4〇&張開。 參見圖7’本發明第四實施方式提供之吸取裝置 100c’其與第三實施方式提供之吸取裝置1〇〇b之不同之處 在於’每個凸出部34c遠離管體30c之一端具有外螺紋 38c，所述吸取裝置100c還包括與所述外螺紋38c相配合 200950929 之螺母39c。該螺母39c通過所述外螺紋38c之配合，與 所述凸出部34c緊配後’使所述導正部咖保持在該螺母 39c與該管體3Ge之間，可防止所述導正部偷因為所述 彈簧36c之受壓撤銷後之反向彈力而彈出。可以理解本 實施方式中，所述彈簧細之自然長度可以長於所述凸出 部34c之長度。200950929 IX. Description of the Invention: [Technical Field] The present invention relates to a suction device for sucking a circular workpiece. [Prior Art] The suction device currently used includes a tube body, a suction source that communicates with one end of the tube body, and a suction portion that communicates with the other end of the tube body and is coaxial with the tube body. When the operation of sucking the center of the circular workpiece is performed, it is not only time-consuming and laborious to manually determine whether the suction portion has been aligned with the center of the circular workpiece, but also the human error is determined, and the suction device cannot be ensured. Accurately draw the center of the circular workpiece. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a suction device capable of accurately sucking a center of a circular workpiece. A suction device for sucking a circular workpiece, comprising a tube body, a suction source communicating with one end of the tube body, and a suction tube communicating with the other end of the tube body and coaxial with the tube body And at least two sleeves disposed on the tube body, opposite to the guide portion. Each of the guiding portions is movably sleeved on the tubular body, and each of the guiding portions has a holding end for pushing and guiding the circular workpiece. When the at least two guiding portions are twisted, at least one of the guiding portions is held to push the edge of the 6-foot circular workpiece. When the at least one guiding portion is aligned with the rest. The clamping end of the at least two guiding portions forms a receiving space which is the same as the outer diameter of the circular workpiece and coaxial with the suction portion, forcing the axis of the circular workpiece and the suction The axes of the sections coincide to ensure that the suction section can absorb the center of the circular workpiece. 200950929 Compared with the prior art, the suction device forms a receiving space which is identical to the outer diameter of the circular workpiece and coaxial with the suction portion by the clamping end of the two guiding portions which are sleeved on the tubular body. , forcing the circular workpiece to be coaxial with the suction portion. The suction portion is realized to accurately absorb the center of the circular workpiece. [Embodiment] Hereinafter, the following preferred embodiments will be described in detail with reference to the accompanying drawings. Referring to FIG. 1 to FIG. 4 together, a first embodiment of the present invention provides a suction device 100 for sucking a circular workpiece 6〇, which includes a tube body 3〇, and one end of the tube body 30. The connected suction source 2 is a suction portion % that communicates with the other end of the tube body 30 and is coaxial with the tube body 3, and two oppositely disposed guide portions 40. Each of the guiding portions 4 has a holding end 42. The tubular body 30 has a set of ends 32. The suction portion 5A includes a mounting end 52. The sleeve end 32 is mounted on the tubular body 3 by an interference fit with the mounting end 52 for sucking a circular workpiece 60. The tube body 30 further includes two oppositely disposed projections %. Each of the guiding portions 40 defines a mounting through hole 44 ′ that cooperates with the protruding portion 34 to make each guiding portion 40 movably sleeved on the tubular body. 3 and FIG. 4, the principle of the centering of the suction device 100 is described: when the suction portion 50 of the suction device 100 sucks the circular workpiece 6〇, and the axis 70 of the circular workpiece 60 is offset from the axis of the suction portion 50. At the heart of 80, the two guiding portions 40 are twisted together. The clamping end 42 of one of the guiding portions 40 pushes the edge of the circular workpiece 60. When the clamping end 42 of the guiding portion 40 is engaged with the clamping end 42 of the other guiding portion 40, the clamping end 42 of the two guiding portions 40 form a joint The circular workpiece 6〇200950929 has a circular receiving space having the same outer diameter and coaxial with the suction portion 5G, forcing the axis 7〇 of the circular workpiece 6〇 to coincide with the axis 8〇 of the suction portion %, • thereby ensuring that the suction portion 5〇 can absorb the center of the circular workpiece (10). It is understood that the mounting through hole 44 can be formed into a circular hole, a round hole and/or a square hole, and the convex portion 34 is correspondingly arranged in a shape of a cylinder, a plum cylinder and/or a square column. . The protrusions 34 are at least two, and the number of the mounting through holes 44 corresponding to the protrusions 34 is corresponding to the position. The resulting accommodating space may also have a central angle greater than 18 〇. The fan-shaped receiving space. Referring to FIG. 5, a suction device 100a according to a second embodiment of the present invention is different from the suction device 100 provided in the first embodiment in that the mounting end 52a has an external thread 54a, and the sleeve end has An internal thread (not shown) that cooperates with the mounting end 52& outer thread 54a. The suction portion 50a is attached to the tubular body 3a by the screw engagement between the sleeve end 32a and the attachment end 52a. Referring to FIG. 6 , a suction device ❹ 100b according to a third embodiment of the present invention is different from the suction device 1 提供 provided by the first embodiment in that each protruding portion 34 b is sleeved with a natural length smaller than the protruding portion. The spring 36b of the length of the servant. When the guiding portion 40b is twisted, the spring 36b will be deformed by pressure. When the force is removed after the guiding portion 4b is folded, the spring 36b is deformed and deformed to generate an elastic force to make two guides. The main part 4〇 & open. Referring to FIG. 7 'the suction device 100c' provided by the fourth embodiment of the present invention is different from the suction device 1b provided by the third embodiment in that each of the projections 34c has an outer side away from one end of the tubular body 30c. Thread 38c, the suction device 100c further includes a nut 39c that cooperates with the external thread 38c 200950929. The nut 39c is engaged with the protruding portion 34c by the engagement of the external thread 38c, and then the guide portion is held between the nut 39c and the tube body 3Ge to prevent the guiding portion. The stealing is caused by the reverse elastic force of the spring 36c after the pressure is cancelled. It can be understood that in the embodiment, the natural length of the spring may be longer than the length of the protruding portion 34c.
參見圖8,本#明第五實施方式提供之吸取裝置 謂’其與第三實施方式提供之吸取裝置嶋之不同之處 在於’該吸取裝置刪還包括銷釘綱，每個凸出部㈣ 具有-與該銷冑39M目配合之且深度小於所述銷釘長 度之裝配孔38d。所述銷釘_與所述裝配孔咖配合後， 使所述導正部_保持在該鎖針39d與該管體_之間。 該銷釘观突出該裝配孔遍之部分可防止所述導正部 40d因為所述彈簧遍之受壓撤銷後之反向Referring to FIG. 8, the suction device provided by the fifth embodiment of the present invention is different from the suction device provided by the third embodiment in that the suction device includes a pin assembly, and each projection (four) has - a fitting hole 38d that is fitted to the pin 39M and has a depth smaller than the length of the pin. After the pin _ is engaged with the assembly hole, the guide portion _ is held between the lock pin 39d and the tube body_. The pin view protrudes over the portion of the fitting hole to prevent the guide portion 40d from being reversed after the spring is undone
=二實施方式中，所述彈㈣之自然長二 長於所述凸出部34d之長度。 (圖未示），如 至第五實施方 可以理解，本發明還具有其他實施方式 兩凸出部結構可不對稱’分别採用上述第一 式之組合。 乡示上所述， 利申請。惟，以 本發明符合發明專利要件，爰依法提出專 上所述者僅為本發明之較佳實施方式，本 200950929 發明之範®並不以上述實施方式為限，舉凡熟悉本案技藝 •之人士援依本發明之精神所作之等效修飾或變化，皆應涵 蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1為本發明第一實施方式提供之吸取裝置之立體裝 配圖。 圖2為圖1中吸取裝置之吸取部與管體配合方式之示 意圖。 圖3為圖1中之吸取裝置求心前之狀態示意圖。 圖4為圖1中之吸取裝置求心之狀態示意圖。 圖5為本發明第二實施方式提供之吸取裝置之部分分 解圖。 圖6為本發明第三實施方式提供之吸取裝置之部分分 解圖。 圖7為本發明弟四實施方式提供之吸取裝置之部分分 解圖。 圖8為本發明第五實施方式提供之吸取裝置之部分分 解圖。 【主要元件符號說明】 吸取裴置 100，100a，100b，100c，100d 吸力源 20 管體 30,30a，30b，30c，30d 套設端 32,32a 凸出部 34,34b，34c，34d 11 200950929 彈簣 36b,36c,36d 外螺紋 38c 螺母 39c 裝配孔 38d 銷釘 39d 導正部 40,40b,40c，40d 挾持端 42 安裝通孔 44 吸取部 50,50a 安裝端 52,52a 外螺紋 54a 圓形工件 60 圓形工件之軸心 70 吸取部之軸心 80 ❹In the second embodiment, the natural length of the bullet (four) is longer than the length of the projection 34d. (not shown), as can be understood by the fifth embodiment, the present invention has other embodiments. The two projection structures can be asymmetrically employed by a combination of the above first formulas. According to the township, the application is made. However, the present invention meets the requirements of the invention patents, and the above-mentioned ones are only the preferred embodiments of the present invention. The invention of the 200950929 invention is not limited to the above embodiments, and those who are familiar with the skill of the present invention Equivalent modifications or variations made in accordance with the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a suction device according to a first embodiment of the present invention. Fig. 2 is a schematic view showing the manner in which the suction portion of the suction device of Fig. 1 is engaged with the tubular body. Fig. 3 is a schematic view showing the state of the suction device of Fig. 1 before centering. Fig. 4 is a schematic view showing the state of the suction device of Fig. 1 for centering. Fig. 5 is a partial exploded view of a suction device according to a second embodiment of the present invention. Fig. 6 is a partial exploded view of a suction device according to a third embodiment of the present invention. Fig. 7 is a partial exploded view of the suction device provided by the fourth embodiment of the present invention. Fig. 8 is a partial exploded view of a suction device according to a fifth embodiment of the present invention. [Main component symbol description] Suction device 100, 100a, 100b, 100c, 100d Suction source 20 Tube 30, 30a, 30b, 30c, 30d Sleeve end 32, 32a Projection 34, 34b, 34c, 34d 11 200950929 Magazine 36b, 36c, 36d External thread 38c Nut 39c Mounting hole 38d Pin 39d Guide part 40, 40b, 40c, 40d Hold end 42 Mounting through hole 44 Suction part 50, 50a Mounting end 52, 52a External thread 54a Round workpiece 60 Axis of a circular workpiece 70 Axis of the suction part 80 ❹
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