JP6155071B2 - Component mounter - Google Patents

Component mounter Download PDF

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JP6155071B2
JP6155071B2 JP2013069651A JP2013069651A JP6155071B2 JP 6155071 B2 JP6155071 B2 JP 6155071B2 JP 2013069651 A JP2013069651 A JP 2013069651A JP 2013069651 A JP2013069651 A JP 2013069651A JP 6155071 B2 JP6155071 B2 JP 6155071B2
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coil
linear motor
cooling means
gantry
regenerative
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JP2014192508A (en
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纐纈　尚人
尚人 纐纈
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Hanwha Vision Co Ltd
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Hanwha Techwin Co Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/0015—Orientation; Alignment; Positioning

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Linear Motors (AREA)

Description

本発明は、ＩＣチップ等の部品を基板上に実装する部品実装機に関し、特に、実装のために部品を保持する部品保持ヘッドをＸＹガントリに搭載し、当該ＸＹガントリをリニアモータにより駆動させる部品実装機に関する。   The present invention relates to a component mounter that mounts components such as IC chips on a substrate, and in particular, a component that mounts a component holding head that holds components for mounting on an XY gantry and drives the XY gantry with a linear motor. Related to mounting machines.

部品実装機に使用されるＸＹガントリは直交するＸ方向ビームとＹ方向ビームとを備え、例えば、一対のＹ方向ビームを定盤上に固定し、この一対のＹ方向ビームに架け渡すようにＸ方向ビームを配置し、Ｘ方向ビームをＹ方向ビームに沿って移動としている。この場合、部品保持ヘッドはＸ方向ビームにＸ方向に移動可能に搭載される。これによりＸＹガントリは、部品保持ヘッドを水平面内でＸＹ方向に自在に移動させ、特定のＸＹ位置で停止させて位置決めする。   An XY gantry used for a component mounting machine includes an X-direction beam and a Y-direction beam that are orthogonal to each other. For example, a pair of Y-direction beams are fixed on a surface plate and are crossed over the pair of Y-direction beams. A direction beam is arranged, and the X direction beam is moved along the Y direction beam. In this case, the component holding head is mounted on the X direction beam so as to be movable in the X direction. As a result, the XY gantry moves the component holding head freely in the XY direction within the horizontal plane, and stops and positions it at a specific XY position.

かかる部品実装機のＸＹガントリの駆動には、高稼動化及び軽量化を目的とし、リニアモータが多く採用されている。また、ＸＹガントリに採用されるリニアモータとしては、コイルを可動子、マグネットを固定子としたものが一般的である。   For driving the XY gantry of such a component mounting machine, a linear motor is often used for the purpose of high operation and light weight. Further, as a linear motor employed in an XY gantry, a motor having a coil as a mover and a magnet as a stator is generally used.

ところでリニアモータにおいては、そのコイルに電流が流れることによる発熱、及びその発熱による性能劣化の問題があることから、従前よりリニアモータの冷却方法が検討されている。   By the way, in the linear motor, since there is a problem of heat generation due to current flowing through the coil and performance degradation due to the heat generation, a cooling method of the linear motor has been studied.

例えば特許文献１には、リニアモータの固定子（マグネット）側のＹ軸テーブルにエア通路を設けるとともに、そのエア通路にエアを流通させる一対のファン（エア送り出し用ファン及びエア吸い出し用ファン）を設けた部品実装機が提案されている。   For example, Patent Document 1 discloses a pair of fans (an air supply fan and an air suction fan) that provide an air passage in a Y-axis table on the stator (magnet) side of a linear motor and distribute air through the air passage. An installed component mounter has been proposed.

しかし、リニアモータにおいて発熱するのはコイル（可動子）であり、特許文献１のように固定子（マグネット）側を冷却する方法では、十分な冷却効果を得ることができない。部品実装機においてリニアモータのコイルは、部品実装機の構造体に直接取り付けられるため、コイルの冷却が十分でないとその構造体に熱変形が生じ、部品実装精度の低下を招く。また、リニアモータの冷却が十分でないと、発熱による性能劣化を考慮してリニアモータの性能（推力）を大きく設計する必要がある。その結果、リニアモータが大型化し、重量増加や消費電力の増大を招く。リニアモータの重量が大きくなると、ＸＹガントリの駆動時の振動が大きくなる。   However, the coil (movable element) generates heat in the linear motor, and the method of cooling the stator (magnet) side as in Patent Document 1 cannot provide a sufficient cooling effect. In the component mounter, the coil of the linear motor is directly attached to the structure of the component mounter. Therefore, if the coil is not sufficiently cooled, the structure is thermally deformed, resulting in a decrease in component mounting accuracy. Further, if the linear motor is not sufficiently cooled, it is necessary to design the performance (thrust) of the linear motor to be large in consideration of performance degradation due to heat generation. As a result, the linear motor is increased in size, resulting in an increase in weight and power consumption. When the weight of the linear motor increases, vibration during driving of the XY gantry increases.

一方、コイルを直接冷却するために、例えば特許文献１の冷却手段であるファンをコイル側に設けようとすると、ファンに電力を供給するために外部からの配線が必要となり、構造が複雑になる。   On the other hand, in order to directly cool the coil, for example, if a fan as a cooling means of Patent Document 1 is provided on the coil side, wiring from the outside is required to supply power to the fan, and the structure becomes complicated. .

特開２０１１−２６３３５６号公報JP 2011-263356 A

本発明が解決しようとする課題は、部品保持ヘッドを搭載するＸＹガントリの駆動をリニアモータにより行う部品実装機において、リニアモータの可動子であるコイルの冷却効果を簡単な構造で高めることができるようにすることにある。   The problem to be solved by the present invention is that in a component mounter that drives a XY gantry mounted with a component holding head by a linear motor, the cooling effect of a coil that is a mover of the linear motor can be enhanced with a simple structure. There is in doing so.

本発明の一観点によれば、部品保持ヘッドをＸＹガントリに搭載し、当該ＸＹガントリを、コイルを可動子とするリニアモータにより駆動させる部品実装機において、前記コイル側に、前記リニアモータの回生電力を蓄電する回生ユニットと、この回生ユニットから供給される電力により駆動するコイル冷却手段とを配置し、前記コイル、前記回生ユニット及び前記コイル冷却手段を一体化し、前記コイルの移動方向の一端側に前記回生ユニットを配置し、前記コイルの移動方向の他端側に前記コイル冷却手段を配置し、前記冷却手段は送風ファンからなり、前記コイルに前記送風ファンから送風されるエアを通過させるエア通路を設けたことを特徴とする部品実装機が提供される。 According to one aspect of the present invention, in a component mounter in which a component holding head is mounted on an XY gantry and the XY gantry is driven by a linear motor having a coil as a mover, the linear motor is regenerated on the coil side. A regenerative unit that stores electric power and a coil cooling means that is driven by the electric power supplied from the regenerative unit are arranged, and the coil, the regenerative unit, and the coil cooling means are integrated, and one end side in the moving direction of the coil The regenerative unit is disposed in the coil, the coil cooling means is disposed on the other end side in the moving direction of the coil, the cooling means includes a blower fan, and the air that is blown from the blower fan passes through the coil. A component mounting machine characterized by providing a passage is provided .

本発明によれば、リニアモータのコイル側にコイル冷却手段を配置しているので、コイルを直接冷却することができ、その冷却効果を高めることができる。また、コイル冷却手段の駆動電力にはリニアモータの回生電力を使用し、更にその回生電力を蓄電する回生ユニットをコイル側に配置して一体化しているので、コイル冷却手段を駆動するために可動子（コイル）側のユニット外との間で配線や配管を設けることが不要となり、構造を簡略化できる。   According to the present invention, since the coil cooling means is arranged on the coil side of the linear motor, the coil can be directly cooled, and the cooling effect can be enhanced. In addition, the regenerative power of the linear motor is used as the driving power for the coil cooling means, and the regenerative unit for storing the regenerative power is arranged on the coil side and integrated, so it can be moved to drive the coil cooling means. It is not necessary to provide wiring and piping between the outside of the unit on the child (coil) side, and the structure can be simplified.

また、リニアモータのコイルの冷却効果が高まることで、発熱によるリニアモータの性能劣化を抑えることができ、その分、リニアモータの推力を小さく設計できる。その結果、リニアモータを小型化することができ、重量及び消費電力を削減でき、装置振動も軽減できる。   Further, since the cooling effect of the coil of the linear motor is enhanced, the performance deterioration of the linear motor due to heat generation can be suppressed, and accordingly, the thrust of the linear motor can be designed to be small. As a result, the linear motor can be reduced in size, the weight and power consumption can be reduced, and the apparatus vibration can be reduced.

本発明の一実施例による部品実装機の要部を示す概略断面図である。It is a schematic sectional drawing which shows the principal part of the component mounting machine by one Example of this invention. 図１の部品実装機のリニアモータ部分の構成を概念的に示す分解斜視図である。It is a disassembled perspective view which shows notionally the structure of the linear motor part of the component mounting machine of FIG.

以下、図面に示す実施例に基づき本発明の実施の形態を説明する。   Embodiments of the present invention will be described below based on examples shown in the drawings.

図１は本発明の一実施例による部品実装機の要部を示す概略断面図である。同図を参照すると、水平面内においてＹ方向に伸びる一対のＹ方向ビーム１０が図示しない定盤に固定され、水平面内においてＹ方向と直交するＸ方向に伸びるＸ方向ビーム２０が一対のＹ方向ビーム１０間に架け渡されており、Ｘ方向ビーム２０はＹ方向ビーム１０に沿ってＹ方向に移動可能である。また、Ｘ方向ビーム２０には部品保持ヘッド３０がＸ方向に移動可能に支持されており、部品保持ヘッド３０はＸ方向ビーム２０に支持されつつＸ方向に移動する。部品保持ヘッド３０は、部品を保持するために吸着ノズル等からなる部品保持具３１を有する。なお、図１中符号４０は、Ｘ方向ビーム２０をＹ方向に案内するリニアガイドである。   FIG. 1 is a schematic sectional view showing a main part of a component mounter according to an embodiment of the present invention. Referring to the figure, a pair of Y direction beams 10 extending in the Y direction in the horizontal plane are fixed to a surface plate (not shown), and an X direction beam 20 extending in the X direction perpendicular to the Y direction in the horizontal plane is a pair of Y direction beams. The X direction beam 20 is movable along the Y direction beam 10 in the Y direction. A component holding head 30 is supported by the X direction beam 20 so as to be movable in the X direction, and the component holding head 30 moves in the X direction while being supported by the X direction beam 20. The component holding head 30 has a component holder 31 composed of a suction nozzle or the like for holding components. In addition, the code | symbol 40 in FIG. 1 is a linear guide which guides the X direction beam 20 to a Y direction.

このようにＸ方向ビーム２０及びＹ方向ビーム１０によりＸＹガントリが構成され、このＸＹガントリが部品保持ヘッド３０を水平面内でＸＹ方向に自在に移動させ、特定のＸＹ位置で停止させて位置決めする。本実施例では、このＸＹガントリにおいて、Ｘ方向ビーム２０をＹ方向ビーム１０に沿って移動させる駆動源としてリニアモータを使用している。   Thus, the XY gantry is constituted by the X direction beam 20 and the Y direction beam 10, and the XY gantry moves the component holding head 30 freely in the XY direction within the horizontal plane, and stops and positions it at a specific XY position. In this embodiment, in this XY gantry, a linear motor is used as a drive source for moving the X direction beam 20 along the Y direction beam 10.

図２は、このリニアモータ５０部分の構成を概念的に示す分解斜視図である。図１及び図２を参照すると、リニアモータ５０は、コイル５１を可動子、マグネット５２を固定子とする相殺型のリニアモータであり、コイル５１はＸ方向ビーム２０側に配置され、マグネット５２はＹ方向ビーム１０に沿ってコイル５１を挟むように配置されている。コイル５１には、ＸＹガントリ外に配置された駆動アンプ６０より駆動電流が供給され、その駆動電流によりリニアモータ５０が駆動する。   FIG. 2 is an exploded perspective view conceptually showing the configuration of the linear motor 50 portion. Referring to FIGS. 1 and 2, the linear motor 50 is a canceling linear motor having a coil 51 as a mover and a magnet 52 as a stator. The coil 51 is disposed on the X-direction beam 20 side. It arrange | positions so that the coil 51 may be pinched | interposed along the Y direction beam 10. FIG. A drive current is supplied to the coil 51 from a drive amplifier 60 arranged outside the XY gantry, and the linear motor 50 is driven by the drive current.

図２に示すように、コイル５１の移動方向（Ｙ方向）の一端側に回生ユニット７０が配置され、コイル５１の移動方向の他端側にコイル冷却手段として送風ファン８０が配置されている。すなわち、回生ユニット７０及び送風ファン８０は、コイル５１の移動方向両側にコイル５１を挟むように配置され、コイル５１、回生ユニット７０及び送風ファン８０は、一つのユニットとして一体化されている。   As shown in FIG. 2, the regenerative unit 70 is disposed on one end side in the moving direction (Y direction) of the coil 51, and the blower fan 80 is disposed on the other end side in the moving direction of the coil 51 as coil cooling means. That is, the regenerative unit 70 and the blower fan 80 are disposed so as to sandwich the coil 51 on both sides in the moving direction of the coil 51, and the coil 51, the regenerative unit 70, and the blower fan 80 are integrated as one unit.

回生ユニット７０は、リニアモータ５０が減速するときに生じる回生電力を蓄電し、送風ファン８０は、回生ユニット７０から供給される電力により駆動する。コイル５１には、送風ファン８０から送風されるエアを通過させるために移動方向（Ｙ方向）に貫通するエア通路５１ａが設けられている。   The regenerative unit 70 stores regenerative power generated when the linear motor 50 decelerates, and the blower fan 80 is driven by the power supplied from the regenerative unit 70. The coil 51 is provided with an air passage 51a penetrating in the moving direction (Y direction) in order to allow the air blown from the blower fan 80 to pass therethrough.

このように本実施例では、送風ファン８０から送風されるエアによってコイル５１自体を直接冷却するので、その冷却効果を高めることができる。また、送風ファン８０の駆動電力にはリニアモータ５０の回生電力を使用し、更にその回生電力を蓄電する回生ユニット７０をコイル５１側に配置して一体化しているので、送風ファン８０を駆動するために可動子（コイル５１）側のユニット外との間で配線や配管を設けることが不要となり、構造を簡略化できる。また、回生ユニット７０は、送風ファン８０を駆動するに足りる電力を蓄電すれば済むので、大型化することはない。   Thus, in the present embodiment, the coil 51 itself is directly cooled by the air blown from the blower fan 80, so that the cooling effect can be enhanced. Further, the regenerative power of the linear motor 50 is used as the drive power for the blower fan 80, and the regenerative unit 70 for storing the regenerative power is arranged and integrated on the coil 51 side, so the blower fan 80 is driven. Therefore, it is not necessary to provide wiring and piping between the movable unit (coil 51) side and the outside of the unit, and the structure can be simplified. Further, the regenerative unit 70 does not increase in size because it only needs to store electric power sufficient to drive the blower fan 80.

なお、本実施例では、コイル冷却手段として送風ファン８０を使用したが、コイル冷却手段はこれに限定されず、例えば熱電素子をコイル冷却手段として使用してもよい。また、本実施例では、ＸＹガントリにおいてＸ方向ビーム２０をＹ方向ビーム１０に沿って移動させるリニアモータを例として説明したが、本発明は、部品保持ヘッド３０をＸ方向ビーム２０に沿って移動させるリニアモータにも適用可能である。リニアモータは相殺型でも対向型でもよい。   In the present embodiment, the blower fan 80 is used as the coil cooling means, but the coil cooling means is not limited to this, and for example, a thermoelectric element may be used as the coil cooling means. In this embodiment, the linear motor that moves the X direction beam 20 along the Y direction beam 10 in the XY gantry has been described as an example. However, the present invention moves the component holding head 30 along the X direction beam 20. It can also be applied to linear motors. The linear motor may be a canceling type or an opposing type.

１０ Ｙ方向ビーム
２０ Ｘ方向ビーム
３０ 部品保持ヘッド
３１ 部品保持具
４０ リニアガイド
５０ リニアモータ
５１ コイル
５１ａ エア通路
５２ マグネット
６０ 駆動アンプ
７０ 回生ユニット
８０ 送風ファン（コイル冷却手段） DESCRIPTION OF SYMBOLS 10 Y direction beam 20 X direction beam 30 Component holding head 31 Component holder 40 Linear guide 50 Linear motor 51 Coil 51a Air passage 52 Magnet 60 Drive amplifier 70 Regenerative unit 80 Blower fan (coil cooling means)

Claims (1)

部品保持ヘッドをＸＹガントリに搭載し、当該ＸＹガントリを、コイルを可動子とするリニアモータにより駆動させる部品実装機において、
前記コイル側に、前記リニアモータの回生電力を蓄電する回生ユニットと、この回生ユニットから供給される電力により駆動するコイル冷却手段とを配置し、前記コイル、前記回生ユニット及び前記コイル冷却手段を一体化し、
前記コイルの移動方向の一端側に前記回生ユニットを配置し、前記コイルの移動方向の他端側に前記コイル冷却手段を配置し、
前記冷却手段は送風ファンからなり、前記コイルに前記送風ファンから送風されるエアを通過させるエア通路を設けたことを特徴とする部品実装機。 In a component mounting machine in which a component holding head is mounted on an XY gantry and the XY gantry is driven by a linear motor having a coil as a mover.
A regenerative unit that stores regenerative power of the linear motor and coil cooling means that is driven by the power supplied from the regenerative unit are arranged on the coil side, and the coil, the regenerative unit, and the coil cooling means are integrated. However,
The regenerative unit is arranged on one end side in the moving direction of the coil, the coil cooling means is arranged on the other end side in the moving direction of the coil,
The component mounting machine according to claim 1, wherein the cooling means includes a blower fan, and an air passage through which air blown from the blower fan passes is provided in the coil .
JP2013069651A 2013-03-28 2013-03-28 Component mounter Active JP6155071B2 (en)

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KR1020130056608A KR101828541B1 (en) 2013-03-28 2013-05-20 Apparatus for mounting a device

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JP2003309963A (en) * 2002-04-11 2003-10-31 Yaskawa Electric Corp Cooling apparatus for linear slider
WO2006040913A1 (en) * 2004-10-14 2006-04-20 Fuji Machine Mfg. Co., Ltd. Linear motor cooling device
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