JP2013146834A - Suction nozzle and part mounting device - Google Patents

Suction nozzle and part mounting device Download PDF

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JP2013146834A
JP2013146834A JP2012009875A JP2012009875A JP2013146834A JP 2013146834 A JP2013146834 A JP 2013146834A JP 2012009875 A JP2012009875 A JP 2012009875A JP 2012009875 A JP2012009875 A JP 2012009875A JP 2013146834 A JP2013146834 A JP 2013146834A
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nozzle
suction
component
base
nozzle base
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JP5838301B2 (en
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Shinji Yamamoto
慎二 山本
Shuichi Kubota
修一 窪田
Hiroyuki Fujiwara
弘之 藤原
Yasuyuki Ishitani
泰行 石谷
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a suction nozzle configured to hardly cause a suction failure of parts due to leakage, even if a contact area between a suction object part and a suction nozzle is small, and to provide a part mounting device.SOLUTION: A suction nozzle 22 includes a nozzle base 41 attached to a mounting head 14 of a part mounting device 1, and a nozzle tip end 42 detachably attached to the nozzle base 41 and having a suction hole 64 in a lower end. The nozzle tip end 42 is positioned to the nozzle base 41 by inserting a plurality of positioning pins 71, which are provided while being protruded downward from the nozzle base 41, into a plurality of nozzle tip end side pin inserting holes 42j provided while being opened to a contact surface 42s with the nozzle base 41.

Description

本発明は、部品実装装置が備える装着ヘッドに取り付けられ、下端の吸着孔から真空吸引することによって部品を吸着する吸着ノズル及びこの吸着ノズルを備えた部品実装装置に関するものである。   The present invention relates to a suction nozzle that is attached to a mounting head provided in a component mounting apparatus and sucks a component by vacuum suction from a suction hole at a lower end, and a component mounting apparatus including the suction nozzle.

部品実装装置は所定の位置に位置決めした基板に対して電子部品等の部品を装着する装置であり、部品の装着には基板に対して移動自在に設けられた装着ヘッドが用いられる。装着ヘッドには下端に吸着孔を備えた吸着ノズルが取り付けられており、吸着ノズルの吸着孔から真空吸引を行うことによって部品を吸着するようになっている。   The component mounting apparatus is an apparatus for mounting a component such as an electronic component on a substrate positioned at a predetermined position, and a mounting head that is movably provided on the substrate is used for mounting the component. A suction nozzle having a suction hole at the lower end is attached to the mounting head, and parts are sucked by vacuum suction from the suction hole of the suction nozzle.

このような部品実装装置では、部品のサイズや形状等に応じた吸着ノズルを装着ヘッドに選択的に取り付けることができるようにするため、吸着ノズルを、装着ヘッドに取り付けられるノズル基部と、下端に吸着孔を有して部品のサイズや形状等に応じた形状に形成されたノズル先端部とから構成し、ノズル先端部をノズル基部に対して着脱自在に取り付けることができるようにしたものが知られている(例えば、特許文献1)。   In such a component mounting apparatus, in order to be able to selectively attach the suction nozzle according to the size, shape, etc. of the component to the mounting head, the suction nozzle is attached to the nozzle base portion attached to the mounting head and the lower end. It is known that it has a suction tip and a nozzle tip formed in a shape corresponding to the size, shape, etc. of the component, and the nozzle tip can be detachably attached to the nozzle base. (For example, Patent Document 1).

特開2000−141263号公報JP 2000-141263 A

しかしながら、上記従来の吸着ノズルでは、ノズル先端部の上端の嵌合端部をノズル基部に設けられた取り付け孔に嵌合させることによってノズル先端部をノズル基部に取り付けるようになっており、嵌合端部と取り付け孔との間には若干の遊びがあることからノズル基部に対するノズル先端部の位置は厳密には一定しない。特に、吸着対象とする部品が微小部品であったり、枠状に形成された枠状部品(シールド部品など)であったりした場合のように、吸着対象とする部品と吸着ノズルとの接触面積が小さいときには、吸着ノズルの吸着孔を部品との接触面に正確に位置させることができずにリーク(空気漏れ)が発生し、部品の吸着ミスを生じるおそれがあるという問題点があった。   However, in the conventional suction nozzle, the nozzle tip is attached to the nozzle base by fitting the fitting end at the upper end of the nozzle tip into the mounting hole provided in the nozzle base. Since there is some play between the end and the mounting hole, the position of the nozzle tip with respect to the nozzle base is not strictly constant. In particular, the contact area between the suction target component and the suction nozzle is small, such as when the suction target component is a micro component or a frame-shaped component (such as a shield component) formed in a frame shape. When it is small, the suction hole of the suction nozzle cannot be accurately positioned on the contact surface with the component, causing a leak (air leakage), which may cause a component suction error.

そこで本発明は、吸着対象とする部品と吸着ノズルとの接触面積が小さい場合であってもリークによる部品の吸着ミスを生じにくい構成の吸着ノズル及び部品実装装置を提供することを目的とする。   Accordingly, an object of the present invention is to provide a suction nozzle and a component mounting apparatus having a configuration that is unlikely to cause a component suction error due to leakage even when the contact area between the component to be suctioned and the suction nozzle is small.

請求項1に記載の吸着ノズルは、部品実装装置が備える装着ヘッドに取り付けられ、下端の吸着孔から真空吸引することによって部品を吸着する吸着ノズルであって、装着ヘッドに取り付けられるノズル基部と、ノズル基部に着脱自在に取り付けられ、下端に前記吸着孔を有したノズル先端部とを有し、ノズル先端部は、ノズル基部から下方に突出して設けられた複数のピンがノズル基部との接触面に開口して設けられた複数のピン挿入孔に挿入されることによってノズル基部に対する位置決めがなされる。   The suction nozzle according to claim 1 is a suction nozzle that is attached to a mounting head provided in a component mounting apparatus and sucks a component by vacuum suction from a suction hole at a lower end, and a nozzle base that is attached to the mounting head; A nozzle tip detachably attached to the nozzle base and having the suction hole at the lower end, and the nozzle tip has a plurality of pins provided projecting downward from the nozzle base to contact the nozzle base It is positioned with respect to the nozzle base by being inserted into a plurality of pin insertion holes provided to open in the nozzle.

請求項2に記載の吸着ノズルは、請求項1に記載の吸着ノズルであって、ノズル先端部は螺子によりノズル基部に取り付けられる。   A suction nozzle according to a second aspect is the suction nozzle according to the first aspect, wherein the nozzle tip is attached to the nozzle base by a screw.

請求項3に記載の吸着ノズルは、請求項1又は2に記載の吸着ノズルであって、ノズル先端部は、ノズル基部側の前記複数のピンがノズル先端部側の前記複数のピン挿入孔に正規の組み合わせで挿入された場合にのみノズル基部に取り付けることができるようになっている。   The suction nozzle according to claim 3 is the suction nozzle according to claim 1 or 2, wherein the plurality of pins on the nozzle base side are inserted into the plurality of pin insertion holes on the nozzle tip side. It can be attached to the nozzle base only when inserted in a regular combination.

請求項4に記載の吸着ノズルは、請求項1乃至3の何れかに記載の吸着ノズルであって、吸着対象とする部品が枠状に形成された枠状部品から成る。   A suction nozzle according to a fourth aspect of the present invention is the suction nozzle according to any one of the first to third aspects, wherein the suction target component is a frame-shaped component formed in a frame shape.

請求項5に記載の部品実装装置は、請求項1乃至4の何れかに記載の吸着ノズルを備えた装着ヘッドを用いて基板に部品を装着する。   According to a fifth aspect of the present invention, a component mounting apparatus mounts a component on a board using the mounting head including the suction nozzle according to any one of the first to fourth aspects.

本発明では、ノズル基部から突出して延びた複数のピンの端部がノズル先端部に設けられた複数のピン挿入孔に挿入されることによってノズル基部に対するノズル先端部の位置決めがなされようになっており、ノズル先端部はノズル基部にしっかりと位置決めされた状態でノズル基部に取り付けられるので、ノズル基部に対するノズル先端部の位置は常に一定し、吸着の対象とする部品と吸着ノズルとの接触面積が小さい場合であってもリークによる部品の吸着ミスを生じにくい。   In the present invention, the end of the plurality of pins protruding from the nozzle base is inserted into the plurality of pin insertion holes provided in the nozzle tip, thereby positioning the nozzle tip with respect to the nozzle base. Since the nozzle tip is attached to the nozzle base in a state where it is firmly positioned on the nozzle base, the position of the nozzle tip with respect to the nozzle base is always constant, and the contact area between the suction target component and the suction nozzle is constant. Even if it is small, it is difficult to cause component adsorption errors due to leakage.

本発明の一実施の形態における部品実装装置の構成図The block diagram of the component mounting apparatus in one embodiment of this invention 本発明の一実施の形態における吸着ノズルを枠状部品とともに示す上方斜視図The upper perspective view which shows the suction nozzle in one embodiment of this invention with a frame-shaped component (a)(b)本発明の一実施の形態における吸着ノズルを枠状部品とともに示す下方斜視図(A) (b) The lower perspective view which shows the suction nozzle in one embodiment of this invention with a frame-shaped component 本発明の一実施の形態における吸着ノズルの(a)上方斜視図(b)上方分解斜視図(A) Upper perspective view (b) Upper exploded perspective view of a suction nozzle in an embodiment of the present invention (a)(b)本発明の一実施の形態における吸着ノズルの側断面図(A) (b) Side sectional view of a suction nozzle in an embodiment of the present invention (a)(b)本発明の一実施の形態における吸着ノズルにより基板に枠状部品を装着する手順を示す図(A) (b) The figure which shows the procedure which mounts frame-shaped components to a board | substrate with the suction nozzle in one embodiment of this invention. 本発明の一実施の形態における部品実装装置が備える部品カメラにより枠状部品の撮像を行っている状態を示す図The figure which shows the state which is imaging the frame-shaped component with the component camera with which the component mounting apparatus in one embodiment of this invention is provided.

以下、図面を参照して本発明の実施の形態について説明する。図1に示す部品実装装置1は、基板2上の電極3に装着された電子部品4の周囲を取り囲む枠形状に形成された枠状部品(例えばシールド部品)5を基板2に装着する装置であり、図示しない基台上に設けられて基板2の搬送と位置決めを行う基板搬送コンベア11、枠状部品5の供給を行う部品供給部としてのトレイ12、基台上に設けられた直交軸ロボットから成る装着ヘッド移動機構13によって基板搬送コンベア11の上方を移動自在な装着ヘッド14、装着ヘッド14の側方に取り付けられた基板カメラ15、基台上に設けられた部品カメラ16及びこれら各部の作動制御を行う制御装置17を備えている。   Embodiments of the present invention will be described below with reference to the drawings. A component mounting apparatus 1 shown in FIG. 1 is an apparatus for mounting a frame-shaped component (for example, a shield component) 5 formed in a frame shape surrounding a periphery of an electronic component 4 mounted on an electrode 3 on a substrate 2 to the substrate 2. There is a substrate conveyor 11 provided on a base (not shown) for carrying and positioning the substrate 2, a tray 12 as a component supply unit for feeding the frame-like component 5, and an orthogonal axis robot provided on the base. A mounting head 14 that can be moved above the substrate transport conveyor 11 by a mounting head moving mechanism 13, a substrate camera 15 that is attached to the side of the mounting head 14, a component camera 16 that is provided on the base, and each of these parts A control device 17 that performs operation control is provided.

装着ヘッド14には昇降自在及び上下軸回りに回転自在な複数のシャフト部材21が設けられており、これら複数のシャフト部材21のうちの一部の下端には枠状部品5を吸着するための吸着ノズル22が取り付けられている。   The mounting head 14 is provided with a plurality of shaft members 21 that can be moved up and down and rotated about the vertical axis, and a lower end of a part of the plurality of shaft members 21 is used for adsorbing the frame-like component 5. A suction nozzle 22 is attached.

基板カメラ15は撮像視野を下方に向けており、装着ヘッド14とともに移動して基板2上に設けられた基板マーク2m(図1)の撮像を行う。部品カメラ16は撮像視野を上方に向けており、装着ヘッド14が吸着ノズル22を介して吸着した枠状部品5を下方から撮像する。   The substrate camera 15 has an imaging field of view directed downward, and moves with the mounting head 14 to image the substrate mark 2m (FIG. 1) provided on the substrate 2. The component camera 16 has an imaging field of view facing upward, and the mounting head 14 images the frame-shaped component 5 sucked through the suction nozzle 22 from below.

基板搬送コンベア11は制御装置17に制御されて作動し(図1)、基板2の搬送及び所定の作業位置への位置決めを行う。   The substrate transport conveyor 11 operates under the control of the control device 17 (FIG. 1), and transports the substrate 2 and positions it at a predetermined work position.

装着ヘッド移動機構13は制御装置17に制御されて作動し(図1)、装着ヘッド14を水平面内で移動させる。装着ヘッド14が備えるシャフト部材21の昇降動作及び回転動作は制御装置17が図示しないアクチュエータ等から成るシャフト部材駆動機構31の作動制御を行うことによってなされ(図1)、吸着ノズル22を介した枠状部品5の吸着動作は制御装置17が図示しないアクチュエータ等から成る吸着機構32の作動制御を行うことによってなされる(図1)。   The mounting head moving mechanism 13 operates under the control of the control device 17 (FIG. 1), and moves the mounting head 14 in a horizontal plane. The raising / lowering operation and the rotating operation of the shaft member 21 provided in the mounting head 14 are performed by the operation control of the shaft member driving mechanism 31 including an actuator (not shown) by the control device 17 (FIG. 1), and the frame through the suction nozzle 22. The suction operation of the component 5 is performed by the control device 17 controlling the operation of the suction mechanism 32 including an actuator (not shown) (FIG. 1).

図1において、基板カメラ15による撮像動作の制御と部品カメラ16による撮像動作の制御は制御装置17によってなされる。基板カメラ15の撮像動作によって得られた画像データと部品カメラ16の撮像動作によって得られた画像データはそれぞれ制御装置17に送信され、制御装置17の画像認識部17aにおいて画像認識処理がなされる。   In FIG. 1, the control of the imaging operation by the substrate camera 15 and the imaging operation by the component camera 16 are performed by the control device 17. The image data obtained by the imaging operation of the board camera 15 and the image data obtained by the imaging operation of the component camera 16 are respectively transmitted to the control device 17, and image recognition processing is performed in the image recognition unit 17 a of the control device 17.

図2及び図3(a),(b)に示すように、吸着ノズル22は、シャフト部材21の下端に取り付けられるノズル基部41及びノズル基部41に着脱自在に取り付けられるノズル先端部42から成る。   As shown in FIGS. 2, 3 (a), and 3 (b), the suction nozzle 22 includes a nozzle base 41 attached to the lower end of the shaft member 21 and a nozzle tip 42 that is detachably attached to the nozzle base 41.

図4(a),(b)及び図5(a),(b)において、ノズル基部41は、上面に上方に突出する円錐台形状部51a及びその下端に設けられた円盤形状部51bを備えたノズル基部上半体51と、ノズル基部上半体51の円盤形状部51bと上下に合致する大きさの円盤形状部52a及びその下端に設けられた矩形の平板形状部52bを備えたノズル基部下半体52から成る。   4 (a), 4 (b) and 5 (a), 5 (b), the nozzle base 41 includes a truncated cone-shaped portion 51a protruding upward on the upper surface and a disk-shaped portion 51b provided at the lower end thereof. Nozzle base upper half 51, nozzle base 52b having a disk-shaped portion 52a having a size matching the upper and lower sides of disk-shaped portion 51b of nozzle base upper-half 51 and a rectangular flat plate-shaped portion 52b provided at the lower end thereof It consists of a lower half 52.

図5(a),(b)において、ノズル基部上半体51の内部には円錐台形状部51aを上下方向に貫通して延びたノズル基部上半体内真空路53が設けられており、ノズル基部下半体52の内部にはノズル基部上半体内真空路53と連通して上下方向に貫通して延びたノズル基部下半体内真空路54が設けられている。   5A and 5B, the nozzle base upper half body 51 is provided with a nozzle base upper half vacuum passage 53 extending vertically through the frustoconical portion 51a. Inside the lower base half 52, there is provided a nozzle base lower half vacuum path 54 which communicates with the nozzle base upper half vacuum path 53 and extends vertically therethrough.

図3(a),(b)、図4(a),(b)及び図5(a),(b)において、ノズル先端部42は、上面がノズル基部下半体52の平板形状部52bの下面と接触する直方体形状のノズル先端部ベース部61及びノズル先端部ベース部61の下面から下方に突出して延びて吸着対象の枠状部品5と接触するノズル先端部接触部62を有して成る。   3 (a), 3 (b), 4 (a), 4 (b) and 5 (a), 5 (b), the nozzle tip 42 has a flat plate-shaped portion 52b whose upper surface is the nozzle base lower half 52. A rectangular parallelepiped nozzle tip portion base portion 61 that contacts the lower surface of the nozzle, and a nozzle tip portion contact portion 62 that protrudes downward from the lower surface of the nozzle tip portion base portion 61 and contacts the frame-shaped component 5 to be sucked. Become.

図3(a),(b)において、ノズル先端部接触部62の外形形状は、吸着対象とする枠状部品5の外形形状とほぼ同じ形状に形成されており、ノズル先端部接触部62の枠状部品5の枠内の部分に相当する領域R(図5(a))には下方に開口する凹形状に肉抜きされた肉抜き部(空洞部)62aが設けられている(図5(a),(b)も参照)。   3A and 3B, the outer shape of the nozzle tip contact portion 62 is formed to be substantially the same as the outer shape of the frame-like component 5 to be attracted. A region R (FIG. 5 (a)) corresponding to a portion in the frame of the frame-shaped component 5 is provided with a hollow portion (cavity portion) 62a that is hollowed in a concave shape that opens downward (FIG. 5). (See also (a) and (b)).

図5(a),(b)において、ノズル先端部42の内部には、ノズル基部下半体52の内部に設けられたノズル基部下半体内真空路54と連通するノズル先端部内真空路63が設けられている。このノズル先端部内真空路63は分岐してノズル先端部接触部62内を延び、ノズル先端部接触部62の下面(下端)に開口して複数の吸着孔64を形成している(図3も参照)。   5 (a) and 5 (b), the nozzle tip end vacuum passage 63 communicating with the nozzle base lower half vacuum passage 54 provided in the nozzle base lower half 52 is provided in the nozzle tip portion 42. Is provided. The nozzle tip inner vacuum path 63 branches and extends in the nozzle tip contact portion 62, and opens on the lower surface (lower end) of the nozzle tip contact portion 62 to form a plurality of suction holes 64 (also in FIG. 3). reference).

図4(a),(b)及び図5(a),(b)において、ノズル先端部42は、複数の取り付け螺子70によりノズル基部41に着脱自在に取り付けられる。すなわち、ノズル基部上半体51、ノズル基部下半体52及びノズル先端部42(ノズル先端部ベース部61)にはそれぞれ複数の螺子取り付け孔51h,52h,42h(ノズル基部上半体51に設けられた螺子取り付け孔51hとノズル基部下半体52に設けられた螺子取り付け孔52hは取り付け螺子70を挿通させる貫通孔、ノズル先端部42に設けられた螺子取り付け孔42hは取り付け螺子70が螺入される螺子孔)が設けられており、ノズル基部上半体51に設けられた螺子取り付け孔51h及びノズル基部下半体52に設けられた螺子取り付け孔52hに挿通させた取り付け螺子70をノズル先端部42に設けられた螺子取り付け孔42hに螺入することで、ノズル基部上半体51、ノズル基部下半体52及びノズル先端部42を一体に結合してノズル基部41(ノズル基部上半体51、ノズル基部下半体52)にノズル先端部42を取り付けることができる。   4A, 4B, 5A, and 5B, the nozzle tip 42 is detachably attached to the nozzle base 41 by a plurality of attachment screws 70. That is, the nozzle base upper half 51, the nozzle base lower half 52, and the nozzle tip 42 (nozzle tip base 61) are respectively provided with a plurality of screw attachment holes 51h, 52h, 42h (nozzle base upper half 51). The screw mounting hole 51h and the screw mounting hole 52h provided in the nozzle base lower half 52 are through-holes through which the mounting screw 70 is inserted, and the screw mounting hole 42h provided in the nozzle tip 42 is screwed into the mounting screw 70. A screw hole) provided in the nozzle base upper half 51 and a screw 70 inserted through the screw base hole 52h provided in the nozzle base lower half 52. The nozzle base upper half 51, the nozzle base lower half 52, and the nozzle tip are screwed into the screw mounting holes 42h provided in the portion 42. 2 can be attached to the nozzle tip 42 to the nozzle base 41 (nozzle base upper half 51, the lower nozzle base half 52) bonded together.

なお、図4(a),(b)及び図5(a),(b)に示すように、取り付け螺子70は頭部の上面が平らな皿螺子であるので、取り付け螺子70によりノズル先端部42をノズル基部41に取り付けた状態において、ノズル基部41の円盤形状部51bの上面は平らな状態となる。   As shown in FIGS. 4A and 4B and FIGS. 5A and 5B, the mounting screw 70 is a flat head screw having a flat top surface. In a state where 42 is attached to the nozzle base 41, the upper surface of the disk-shaped portion 51b of the nozzle base 41 is flat.

図4(a),(b)及び図5(a),(b)において、ノズル基部下半体52には上下方向に延びた複数(ここでは2つ)の位置決めピン71が設けられている。各位置決めピン71はノズル基部下半体52を厚さ方向に貫通して延びており、その上端部はノズル基部下半体52の上面(円盤形状部52aの上面)から上方に突出し、下端部はノズル基部下半体52の下面(平板形状部52bの下面)から下方に突出している。一方、ノズル基部上半体51にはノズル基部下半体52に設けられた複数の位置決めピン71それぞれの上端部が挿入される複数のノズル基部上半体側ピン挿入孔51jが下方に開口して設けられており、ノズル先端部42のノズル基部41との接触面42s(ノズル先端部ベース部61の上面)には、ノズル基部下半体52に設けられた複数の位置決めピン71それぞれの下端部が挿入される複数のノズル先端部側ピン挿入孔42jが上方に開口して設けられている。   4A, 4B, and 5A, 5B, the nozzle base lower half 52 is provided with a plurality of (here, two) positioning pins 71 extending in the vertical direction. . Each positioning pin 71 extends through the nozzle base lower half 52 in the thickness direction, and its upper end protrudes upward from the upper surface of the nozzle base lower half 52 (the upper surface of the disk-shaped portion 52a), and the lower end. Protrudes downward from the lower surface of the nozzle base lower half 52 (the lower surface of the flat plate-shaped portion 52b). On the other hand, the nozzle base upper half 51 has a plurality of nozzle base upper half side pin insertion holes 51j into which the upper ends of the positioning pins 71 provided in the nozzle base lower half 52 are inserted downward. The lower end of each of the plurality of positioning pins 71 provided on the nozzle base lower half 52 is provided on the contact surface 42s of the nozzle tip 42 with the nozzle base 41 (the upper surface of the nozzle tip base 61). A plurality of nozzle tip side pin insertion holes 42j into which are inserted are opened upward.

ノズル先端部42をノズル基部41に取り付けるときには、ノズル基部下半体52に設けられた複数の位置決めピン71の上端部がノズル基部上半体51の複数のノズル基部上半体側ピン挿入孔51jに挿入されるようにし、また、ノズル基部下半体52に設けられた複数の位置決めピン71の下端部がノズル先端部ベース部61の複数のノズル先端部側ピン挿入孔42jに挿入されるようにしたうえで、前述のように、複数の取り付け螺子70によって、ノズル基部41にノズル先端部42を取り付ける(図3(a),(b))。   When the nozzle tip 42 is attached to the nozzle base 41, the upper ends of the plurality of positioning pins 71 provided on the nozzle base lower half 52 are inserted into the nozzle base upper half side pin insertion holes 51 j of the nozzle base upper half 51. The lower end portions of the plurality of positioning pins 71 provided on the nozzle base lower half 52 are inserted into the plurality of nozzle tip portion side pin insertion holes 42j of the nozzle tip portion base portion 61. After that, as described above, the nozzle tip 42 is attached to the nozzle base 41 by the plurality of attachment screws 70 (FIGS. 3A and 3B).

このように、上記ノズル先端部42のノズル基部41への取り付けでは、ノズル基部41から下方に突出して延びた複数の位置決めピン71の端部(下端部)がノズル先端部42(ノズル先端部ベース部61)のノズル基部41との接触面42sに開口して設けられた複数のノズル先端部側ピン挿入孔42jに挿入されることによってノズル基部41に対するノズル先端部42の位置決めがなされようになっているので、ノズル先端部42はノズル基部41にしっかりと位置決めされた状態でノズル基部41に取り付けられる。   As described above, when the nozzle tip portion 42 is attached to the nozzle base portion 41, the end portions (lower end portions) of the plurality of positioning pins 71 projecting downward from the nozzle base portion 41 are formed into the nozzle tip portion 42 (nozzle tip portion base). The nozzle tip portion 42 is positioned relative to the nozzle base portion 41 by being inserted into a plurality of nozzle tip portion side pin insertion holes 42j provided on the contact surface 42s of the portion 61) with the nozzle base portion 41. Therefore, the nozzle tip 42 is attached to the nozzle base 41 in a state where the nozzle tip 42 is firmly positioned on the nozzle base 41.

ここで、複数の位置決めピン71、ノズル先端部側ピン挿入孔42j、螺子取り付け孔52h及び螺子取り付け孔42hの配置は、複数の位置決めピン71がノズル先端部側ピン挿入孔42jに正規の組み合わせで挿入された場合にのみ螺子取り付け孔52hと螺子取り付け孔42hが上下に一致するようになっている。すなわち、ノズル先端部42は、ノズル基部41側の複数の位置決めピン71が複数のノズル先端部側ピン挿入孔42jに正規の組み合わせで挿入された場合にのみノズル基部41に取り付けることができるようになっている。このため、ノズル先端部42が誤った向きにノズル基部41に取り付けられるおそれがなく、特に、ノズル先端部接触部62の外形が非対称に形成される場合には有効である。   Here, the plurality of positioning pins 71, the nozzle tip portion side pin insertion hole 42j, the screw attachment hole 52h, and the screw attachment hole 42h are arranged in a proper combination with the plurality of positioning pins 71 in the nozzle tip portion side pin insertion hole 42j. Only when the screw is inserted, the screw mounting hole 52h and the screw mounting hole 42h are aligned vertically. That is, the nozzle tip portion 42 can be attached to the nozzle base portion 41 only when the plurality of positioning pins 71 on the nozzle base portion 41 side are inserted into the plurality of nozzle tip portion side pin insertion holes 42j in a proper combination. It has become. For this reason, there is no possibility that the nozzle tip portion 42 is attached to the nozzle base portion 41 in the wrong direction, and this is particularly effective when the outer shape of the nozzle tip portion contact portion 62 is formed asymmetrically.

また、上記のようにノズル基部41にノズル先端部42が取り付けられることによって、ノズル基部上半体内真空路53、ノズル基部下半体内真空路54及びノズル先端部内真空路63が互いに連通した状態となる(図5(a))。   In addition, by attaching the nozzle tip 42 to the nozzle base 41 as described above, the nozzle base upper half vacuum path 53, the nozzle base lower half vacuum path 54, and the nozzle tip inner vacuum path 63 communicate with each other. (FIG. 5A).

ここで、図4(b)から分かるように、ノズル先端部42のノズル基部41との接触面42sにおけるノズル先端部内真空路63の周りの肉厚(ノズル先端部内真空路63の半径方向の肉厚)は非常に厚くなっていることから、ノズル先端部42の接触面42sとノズル基部41の平板形状部52bの下面との密着性は非常に高い。このためノズル先端部42の接触面42sとノズル基部41の平板形状部52bの下面との間に、ノズル基部下半体内真空路54とノズル先端部内真空路63とを空気漏れさせることなく連通させるためのパッキンは不要である。   Here, as can be seen from FIG. 4B, the thickness around the nozzle tip inner vacuum path 63 on the contact surface 42 s of the nozzle tip 42 with the nozzle base 41 (the thickness of the nozzle tip inner vacuum path 63 in the radial direction). (Thickness) is very thick, the adhesion between the contact surface 42s of the nozzle tip 42 and the lower surface of the flat plate-shaped portion 52b of the nozzle base 41 is very high. Therefore, the nozzle base lower half vacuum path 54 and the nozzle tip internal vacuum path 63 are communicated between the contact surface 42s of the nozzle tip 42 and the lower surface of the flat plate-shaped part 52b of the nozzle base 41 without causing air leakage. No packing is required.

図2に示すように、吸着ノズル22は、ノズル基部上半体51に設けられた円錐台形状部51aがシャフト部材21の下端に下方から挿入されてシャフト部材21に取り付けられる。吸着ノズル22がシャフト部材21に取り付けられた状態では、吸着ノズル22のノズル基部上半体内真空路53がシャフト部材21内を延びる装着ヘッド側真空圧供給管路14a(図2)と連通するので、吸着機構32から吸着ノズル22の下端の複数の吸着孔64を通じた真空吸引動作が可能となる。   As shown in FIG. 2, the suction nozzle 22 is attached to the shaft member 21 by inserting a truncated cone-shaped portion 51 a provided in the nozzle base upper half 51 into the lower end of the shaft member 21 from below. In a state where the suction nozzle 22 is attached to the shaft member 21, the nozzle base upper half vacuum passage 53 of the suction nozzle 22 communicates with the mounting head side vacuum pressure supply line 14 a (FIG. 2) extending through the shaft member 21. The vacuum suction operation from the suction mechanism 32 through the plurality of suction holes 64 at the lower end of the suction nozzle 22 becomes possible.

なお、前述のように、取り付け螺子70は頭部の上面が平らな皿螺子であって、取り付け螺子70によりノズル先端部42をノズル基部41に取り付けた状態において、ノズル基部41の円盤形状部51bの上面は平らな状態となるので、ノズル基部41をシャフト部材21に取り付ける際には、シャフト部材21の下端をノズル基部41の円盤形状部51bの上面に当接させることができ、吸着ノズル22を安定した状態でシャフト部材21に取り付けることができる。   As described above, the mounting screw 70 is a countersunk screw having a flat top surface, and the disk-shaped portion 51b of the nozzle base 41 is mounted with the nozzle tip 42 attached to the nozzle base 41 by the mounting screw 70. When the nozzle base 41 is attached to the shaft member 21, the lower end of the shaft member 21 can be brought into contact with the upper surface of the disk-shaped portion 51 b of the nozzle base 41. Can be attached to the shaft member 21 in a stable state.

図6(a),(b)に示すように、枠状部品5は、基板2の電極3上に既に装着されている電子部品4(電子部品群)の周囲を取り囲むように基板2上に装着される。本実施の形態における枠状部品5では、上面に3つの吸着指定箇所P1,P2,P3が設定されており(図2も参照)、ノズル先端部42の下端の吸着孔64は上記3つの吸着指定箇所P1,P2,P3に対応した位置に設けられている(図3(a))。   As shown in FIGS. 6A and 6B, the frame-shaped component 5 is formed on the substrate 2 so as to surround the periphery of the electronic component 4 (electronic component group) already mounted on the electrode 3 of the substrate 2. Installed. In the frame-like component 5 in the present embodiment, three suction designated portions P1, P2, and P3 are set on the upper surface (see also FIG. 2), and the suction hole 64 at the lower end of the nozzle tip portion 42 has the above three suctions. It is provided at a position corresponding to the designated places P1, P2 and P3 (FIG. 3A).

次に、本実施の形態における部品実装装置1による枠状部品5の基板2への装着作業について説明する。   Next, the mounting operation of the frame-shaped component 5 on the substrate 2 by the component mounting apparatus 1 in the present embodiment will be described.

部品実装装置1による枠状部品5の基板2への装着作業では、部品実装装置1の制御装置17は先ず、基板搬送コンベア11を作動させ、部品実装装置1の上流工程側の装置から送られてきた電子部品4の装着済みの基板2を受け取って搬送することにより、基板2を所定の作業位置に位置決めする。制御装置17は、基板2を作業位置に位置決めしたら、装着ヘッド移動機構13の作動制御を行って装着ヘッド14を移動させ、基板カメラ15に基板2上の一対の基板マーク2mの撮像を行わせる。制御装置17は、一対の基板マーク2mの画像データが得られたら、その基板マーク2mの画像認識を行って基板2の基準位置からの位置ずれを求める。   In the mounting operation of the frame-shaped component 5 on the board 2 by the component mounting apparatus 1, the control device 17 of the component mounting apparatus 1 first operates the board transport conveyor 11 and is sent from the apparatus on the upstream process side of the component mounting apparatus 1. By receiving and transporting the board 2 on which the electronic component 4 is already mounted, the board 2 is positioned at a predetermined work position. After positioning the substrate 2 at the work position, the control device 17 controls the operation of the mounting head moving mechanism 13 to move the mounting head 14 and causes the substrate camera 15 to image the pair of substrate marks 2m on the substrate 2. . When the image data of the pair of substrate marks 2m is obtained, the control device 17 performs image recognition of the substrate marks 2m and obtains the positional deviation of the substrate 2 from the reference position.

制御装置17は、基板2の基準位置からの位置ずれを求めたら、装着ヘッド移動機構13の作動制御を行って装着ヘッド14をトレイ12の上方に位置させるとともに、シャフト部材駆動機構31及び吸着機構32の作動制御を行って装着ヘッド14が備える吸着ノズル22に枠状部品5を吸着させる。この枠状部品5の吸着では、吸着ノズル22が備えるノズル先端部接触部62の外形をトレイ12上の枠状部品5の外形に合わせるようにして吸着ノズル22の下端を枠状部品5の上面に接触させたうえで、吸着機構32を作動させて、吸着ノズル22の下端の複数の吸着孔64から真空吸引を行う。これによりトレイ12内の枠状部品5は吸着ノズル22を介して装着ヘッド14に吸着される。   When the control device 17 obtains the positional deviation of the substrate 2 from the reference position, the control device 17 controls the operation of the mounting head moving mechanism 13 so as to position the mounting head 14 above the tray 12, as well as the shaft member driving mechanism 31 and the suction mechanism. The frame-shaped component 5 is sucked by the suction nozzle 22 provided in the mounting head 14 by performing the operation control 32. In the suction of the frame-shaped component 5, the lower end of the suction nozzle 22 is placed on the upper surface of the frame-shaped component 5 such that the outer shape of the nozzle tip contact portion 62 provided in the suction nozzle 22 matches the outer shape of the frame-shaped component 5 on the tray 12. Then, the suction mechanism 32 is operated to perform vacuum suction from the plurality of suction holes 64 at the lower end of the suction nozzle 22. As a result, the frame-like component 5 in the tray 12 is sucked to the mounting head 14 via the suction nozzle 22.

制御装置17は、吸着ノズル22を介して装着ヘッド14に枠状部品5を吸着させたら、装着ヘッド14を移動させて枠状部品5が部品カメラ16の上方を通過するように装着ヘッド14を移動させる。そして、部品カメラ16に枠状部品5の撮像を行わせ(図7)、得られた画像データに基づく画像認識を行って、吸着ノズル22に対する枠状部品5の位置ずれを算出する。   When the controller 17 adsorbs the frame-shaped component 5 to the mounting head 14 via the suction nozzle 22, the controller 17 moves the mounting head 14 so that the frame-shaped component 5 passes over the component camera 16. Move. Then, the frame camera 5 is imaged by the component camera 16 (FIG. 7), image recognition based on the obtained image data is performed, and the positional deviation of the frame component 5 with respect to the suction nozzle 22 is calculated.

この部品カメラ16による枠状部品5の撮像及び画像認識工程では、吸着ノズル22の枠状部品5と接触するノズル先端部接触部62の外形形状が枠状部品5の外形とほぼ等しい形状に形成されるとともに、ノズル先端部接触部62の枠状部品5の枠内の部分に相当する領域Rが下方に開口する凹形状に肉抜きされており、部品カメラ16による枠状部品5の撮像時の焦点F(図7)は枠状部品5の下面の高さの位置に設定されていることから、吸着ノズル22を用いて吸着した枠状部品5を下方から撮像して得られた画像では、ノズル先端部42の枠状部品5の枠内の部分に相当する領域Rの下面42Rは焦点Fの位置よりも高くてぼやけることになる。このため、吸着ノズル22の上記下面42Rに傷や異物が付いていたとしてもその部分が明るく映ずるようなことはなく、枠状部品5の画像認識の際に吸着ノズル22の一部が枠状部品5の一部であると誤認識されることがない。   In the imaging and image recognition process of the frame-shaped component 5 by the component camera 16, the outer shape of the nozzle tip contact portion 62 that comes into contact with the frame-shaped component 5 of the suction nozzle 22 is formed to be substantially equal to the outer shape of the frame-shaped component 5. At the same time, a region R corresponding to a portion of the nozzle tip contact portion 62 in the frame of the frame-shaped component 5 is cut into a concave shape that opens downward, and the component camera 16 captures the frame-shaped component 5. Since the focal point F (FIG. 7) is set at the height of the lower surface of the frame-shaped component 5, in the image obtained by imaging the frame-shaped component 5 sucked using the suction nozzle 22 from below. The lower surface 42R of the region R corresponding to the portion of the nozzle tip 42 in the frame of the frame-shaped part 5 is higher than the position of the focal point F and blurs. For this reason, even if a scratch or a foreign object is attached to the lower surface 42R of the suction nozzle 22, the portion does not appear bright, and a part of the suction nozzle 22 is framed during image recognition of the frame-like component 5. It is not mistakenly recognized as a part of the shaped part 5.

制御装置17は、枠状部品5の撮像及び画像認識を行って吸着ノズル22に対する枠状部品5の位置ずれを算出したら、装着ヘッド移動機構13の作動制御を行って、装着ヘッド14を基板2の上方に位置させる。そして、制御装置17はシャフト部材21を装着ヘッド14に対して下動させて枠状部品5を下降させ(図6(a)中に示す矢印A)、枠状部品5が基板2に接触したところで真空吸着を解除して枠状部品5を基板2上に装着する(図6(b))。   When the control device 17 performs imaging and image recognition of the frame-shaped component 5 and calculates the positional deviation of the frame-shaped component 5 with respect to the suction nozzle 22, the control device 17 controls the operation of the mounting head moving mechanism 13 to place the mounting head 14 on the substrate 2. Located above. Then, the control device 17 moves the shaft member 21 downward with respect to the mounting head 14 to lower the frame-shaped component 5 (arrow A shown in FIG. 6A), and the frame-shaped component 5 comes into contact with the substrate 2. By the way, the vacuum suction is released and the frame-like component 5 is mounted on the substrate 2 (FIG. 6B).

制御装置17は、枠状部品5の基板2への装着作業が終了したら装着ヘッド14に対してシャフト部材21を上動させ、次の枠状部品5の吸着及び基板2への装着を行う。基板2に装着すべき全ての枠状部品5を基板2上に装着したら、制御装置17が基板搬送コンベア11を作動させて、基板2を部品実装装置1の下流工程側の装置に搬出する。   When the mounting operation of the frame-shaped component 5 on the substrate 2 is completed, the control device 17 moves the shaft member 21 upward with respect to the mounting head 14 to suck the next frame-shaped component 5 and mount it on the substrate 2. When all the frame-like components 5 to be mounted on the substrate 2 are mounted on the substrate 2, the control device 17 operates the substrate transport conveyor 11 to carry the substrate 2 out to the device on the downstream process side of the component mounting device 1.

以上説明したように、本実施の形態における吸着ノズル22(及び吸着ノズル22を備えた部品実装装置1)では、ノズル基部41から突出して延びた複数のピン(位置決めピン71)の端部がノズル先端部42に設けられた複数のピン挿入孔(ノズル先端部側ピン挿入孔42j)に挿入されることによってノズル基部41に対するノズル先端部42の位置決めがなされようになっており、ノズル先端部42はノズル基部41にしっかりと位置決めされた状態でノズル基部41に取り付けられるので、ノズル基部41に対するノズル先端部42の位置は常に一定し、吸着の対象とする部品と吸着ノズル22との接触面積が小さい場合であってもリークによる部品の吸着ミスを生じにくい。   As described above, in the suction nozzle 22 (and the component mounting apparatus 1 including the suction nozzle 22) according to the present embodiment, the end portions of the plurality of pins (positioning pins 71) protruding from the nozzle base 41 are nozzles. The nozzle tip 42 is positioned with respect to the nozzle base 41 by being inserted into a plurality of pin insertion holes (nozzle tip side pin insertion holes 42 j) provided in the tip 42. Since the nozzle tip 41 is attached to the nozzle base 41 while being firmly positioned on the nozzle base 41, the position of the nozzle tip 42 with respect to the nozzle base 41 is always constant, and the contact area between the suction target component and the suction nozzle 22 is constant. Even if it is small, it is difficult to cause component adsorption errors due to leakage.

なお、上述の実施の形態では、吸着ノズル22によって吸着される対象部品が枠状に形成された枠状部品5から成っていたが、吸着ノズル22の吸着対象となる部品はこのような枠状部品に限られず、他の部品であってもよい。特に、微小部品であれば、部品が枠状部品である場合と同様に、吸着の対象とする部品と吸着ノズル22との接触面積が小さくなるので、本実施の形態における吸着ノズル22を用いる効果は大きなものとなる。   In the above-described embodiment, the target component sucked by the suction nozzle 22 is composed of the frame-shaped component 5 formed in a frame shape. However, the component to be suctioned by the suction nozzle 22 is such a frame shape. It is not limited to parts, and may be other parts. In particular, in the case of a minute part, the contact area between the part to be sucked and the suction nozzle 22 is reduced as in the case where the part is a frame-like part. Therefore, the effect of using the suction nozzle 22 in the present embodiment. Will be big.

吸着対象とする部品と吸着ノズルとの接触面積が小さい場合であってもリークによる部品の吸着ミスを生じにくい構成の吸着ノズル及び部品実装装置を提供する。   Provided is a suction nozzle and a component mounting apparatus having a configuration in which even if the contact area between a component to be suctioned and a suction nozzle is small, a component suction error due to leakage is unlikely to occur.

1 部品実装装置
2 基板
5 枠状部品(部品)
14 装着ヘッド
22 吸着ノズル
41 ノズル基部
42 ノズル先端部
42s 接触面
42j ノズル先端部側ピン挿入穴(ピン挿入孔)
64 吸着孔
70 取り付け螺子(螺子)
71 位置決めピン(ピン)
1 Component mounting device 2 Substrate 5 Frame-shaped component (component)
14 Mounting head 22 Suction nozzle 41 Nozzle base 42 Nozzle tip 42s Contact surface 42j Nozzle tip pin insertion hole (pin insertion hole)
64 Adsorption hole 70 Mounting screw (screw)
71 Positioning pin (pin)

Claims (5)

部品実装装置が備える装着ヘッドに取り付けられ、下端の吸着孔から真空吸引することによって部品を吸着する吸着ノズルであって、
装着ヘッドに取り付けられるノズル基部と、
ノズル基部に着脱自在に取り付けられ、下端に前記吸着孔を有したノズル先端部とを有し、
ノズル先端部は、ノズル基部から下方に突出して設けられた複数のピンがノズル基部との接触面に開口して設けられた複数のピン挿入孔に挿入されることによってノズル基部に対する位置決めがなされることを特徴とする吸着ノズル。
A suction nozzle that is attached to the mounting head provided in the component mounting apparatus and sucks the component by vacuum suction from the suction hole at the lower end,
A nozzle base attached to the mounting head;
A nozzle base that is detachably attached to the nozzle base and has the suction hole at the lower end;
The nozzle tip portion is positioned with respect to the nozzle base portion by inserting a plurality of pins provided projecting downward from the nozzle base portion into a plurality of pin insertion holes provided on the contact surface with the nozzle base portion. A suction nozzle characterized by that.
ノズル先端部は螺子によりノズル基部に取り付けられることを特徴とする請求項1に記載の吸着ノズル。   The suction nozzle according to claim 1, wherein the nozzle tip is attached to the nozzle base by a screw. ノズル先端部は、ノズル基部側の前記複数のピンがノズル先端部側の前記複数のピン挿入孔に正規の組み合わせで挿入された場合にのみノズル基部に取り付けることができるようになっていることを特徴とする請求項1又は2に記載の吸着ノズル。   The nozzle tip can be attached to the nozzle base only when the plurality of pins on the nozzle base side are inserted into the plurality of pin insertion holes on the nozzle tip side in a proper combination. The suction nozzle according to claim 1 or 2, characterized in that 吸着対象とする部品が枠状に形成された枠状部品から成ることを特徴とする請求項1乃至3の何れかに記載の吸着ノズル。   4. The suction nozzle according to claim 1, wherein the part to be suctioned is a frame-like part formed in a frame shape. 請求項1乃至4の何れかに記載の吸着ノズルを備えた装着ヘッドを用いて基板に部品を装着することを特徴とする部品実装装置。   A component mounting apparatus, wherein a component is mounted on a substrate using the mounting head including the suction nozzle according to claim 1.
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