WO2000019795A1 - Dispositif pour mettre en place des composants electriques sur des supports - Google Patents

Dispositif pour mettre en place des composants electriques sur des supports Download PDF

Info

Publication number
WO2000019795A1
WO2000019795A1 PCT/DE1999/001391 DE9901391W WO0019795A1 WO 2000019795 A1 WO2000019795 A1 WO 2000019795A1 DE 9901391 W DE9901391 W DE 9901391W WO 0019795 A1 WO0019795 A1 WO 0019795A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning arm
rotor
placement head
stator
guided
Prior art date
Application number
PCT/DE1999/001391
Other languages
German (de)
English (en)
Inventor
Mohammad Mehdianpour
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2000019795A1 publication Critical patent/WO2000019795A1/fr

Links

Classifications

    • 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
    • H05K13/0408—Incorporating a pick-up tool
    • H05K13/041—Incorporating a pick-up tool having multiple pick-up tools
    • 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
    • H05K13/0406—Drive mechanisms for pick-and-place heads, e.g. details relating to power transmission, motors or vibration damping

Definitions

  • the invention relates to a device for equipping component carriers with electrical components by means of a revolver-type placement head which can be moved linearly on an elongated positioning arm, the placement head having a stator guided on the positioning arm and a rotor with star-shaped projecting grippers for the components.
  • Such a placement head is e.g. by Siemens, SMD-Speed Placer SP-120, order no. A19100-E0-A465, page 4.
  • the axis of rotation of the rotor is then parallel to the travel plane and perpendicular to the positioning arm.
  • the placement head is arranged essentially to the side and below the positioning arm.
  • the positioning arm can be moved perpendicular to its longitudinal direction in a linear guide of the device. Since the center of gravity of the placement head is located below the positioning arm, a torque is generated when the positioning arm is braked into a working position, which twists the positioning arm.
  • the positioning arm must therefore be designed to be correspondingly more stable and heavier. The resulting torsional vibrations delay the positioning process.
  • the invention has for its object to reduce the torsional effect.
  • the rotating plane of the rotor can be perpendicular or oblique to the longitudinal direction of the positioning arm.
  • the center of gravity of the placement head is in the area of the neutral fiber of the positioning arm.
  • the placement head Since the placement head is essentially built around the positioning arm, it can become more compact and lighter, which also reduces the inertial forces acting on the positioning arm and the bending moments.
  • a placement head can be used particularly advantageously in a positioning arm which is provided with an actuator at both ends.
  • Such a positioning arm is fixed at both ends when braking into a working position, so that the resulting bending vibrations are largely avoided.
  • the positioning arm can then be made considerably slimmer than a one-sided drive with constant cross-sectional dimensions, so that the placement head diameter can be kept correspondingly small.
  • the same effects can also be achieved with a pivotable positioning arm, in which the actuator engages at its outer end, so that the braked positioning arm is fixed at both ends.
  • the placement head can be formed essentially concentrically around the positioning arm in a simple and lightweight construction.
  • Axle and housing parts require what the mass of the placement head fes further reduced.
  • the assignment of the moving coil parts to the stator facilitates their power supply.
  • the longitudinal guide according to claim 5 requires small dimensions and is approximated in its center of gravity to the positioning arm center, which enables a compact and low-mass design.
  • the longitudinal drive according to claim 6 also acts in the vicinity of the center of gravity of the placement head, whereby the resulting moments of mass are reduced when moving the placement head.
  • the linear motor according to claim 7 can be designed to be space-saving, the magnetic parts with a small thickness being applied to the positioning arm.
  • the development according to claim 8 distributes the drive parts and guide parts evenly on both sides of the positioning arm.
  • Figures 1 and 2 show two different, partially sectioned side views of a placement head with a positioning arm and a circuit board.
  • a placement head 1 can be moved linearly along an elongated positioning arm 2 by means of a linear motor 3, 4.
  • the turret-like placement head 1 has a stator 5 and a rotor 6, on which a plurality of grippers 7, designed as pipettes, for electrical components 8 are arranged all around.
  • the placement head with one of the grippers 7 is located just above a component carrier 9.
  • the corresponding component 8 can be moved onto the component carrier by a lifting movement of the gripper 7 specified arrow direction. By gradually rotating the rotor 6, all the grippers 7 can be brought into their placement position little by little.
  • the stator 5 In the area of the central axis, the stator 5 has an essentially rectangular opening 14 through which the positioning arm 2 with magnetic parts 3 of the linear motor is passed perpendicular to the plane of rotation of the grippers 7.
  • a longitudinal guide rail 10 On the underside of the positioning arm 2, a longitudinal guide rail 10 is attached, which together with a linear guide part
  • the stator 5 forms a longitudinal guide for the placement head 1.
  • the positioning arm 2 has a constant cross-section of a small extent over the entire travel range. Such a positioning arm can be used particularly cheaply in automatic placement machines in which the positioning arm can be fixed at both ends in the respective working position, which e.g. with a positioning arm provided on both sides with an actuator.
  • the rotary drive of the rotor is realized by means of electromagnetic drive elements 12, 13, which are arranged circumferentially between the rotor 6 and the stator 5, with moving coil parts 12 being attached to the stator 5 and rotating magnet parts 13 to the rotor 6.
  • electromagnetic drive elements 12, 13, which are arranged circumferentially between the rotor 6 and the stator 5, with moving coil parts 12 being attached to the stator 5 and rotating magnet parts 13 to the rotor 6.
  • Such a placement head can be made particularly compact and low in mass, with forces and moments acting inwards and outwards being reduced to a low level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

Selon l'invention, un tête de mise en place de composants (1), en forme de revolver, servant à saisir et à déposer une pluralité de composants électriques (8) sur un support (9), présente un passage central, à travers lequel est introduit un bras de positionnement mobile, allongé, sur lequel la tête (1) est maintenue de manière à pouvoir coulisser dans le sens longitudinal. Il est ainsi possible d'obtenir une tête compacte et légère, dont le centre de gravité se situe au niveau de l'axe neutre du bras de positionnement, ce qui permet d'éviter dans une large mesure une torsion de ce dernier, par exemple lors d'un freinage.
PCT/DE1999/001391 1998-09-25 1999-05-07 Dispositif pour mettre en place des composants electriques sur des supports WO2000019795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19844134.7 1998-09-25
DE19844134 1998-09-25

Publications (1)

Publication Number Publication Date
WO2000019795A1 true WO2000019795A1 (fr) 2000-04-06

Family

ID=7882301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/001391 WO2000019795A1 (fr) 1998-09-25 1999-05-07 Dispositif pour mettre en place des composants electriques sur des supports

Country Status (1)

Country Link
WO (1) WO2000019795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005032232A1 (fr) * 2003-09-26 2005-04-07 Siemens Aktiengesellschaft Tete d'insertion pour l'assemblage de substrats avec des composants electriques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875285A (en) * 1987-11-10 1989-10-24 Siemens Aktiengesellschaft Apparatus and method for equipping printed circuit boards with components
US5694219A (en) * 1995-10-10 1997-12-02 Lg Industrial System Co., Ltd. Device recognizing method and apparatus for surface mounting device mounter
DE19707267A1 (de) * 1997-02-24 1998-08-27 Siemens Ag Vorrichtung zum Herstellen von elektrischen Baugruppen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875285A (en) * 1987-11-10 1989-10-24 Siemens Aktiengesellschaft Apparatus and method for equipping printed circuit boards with components
US5694219A (en) * 1995-10-10 1997-12-02 Lg Industrial System Co., Ltd. Device recognizing method and apparatus for surface mounting device mounter
DE19707267A1 (de) * 1997-02-24 1998-08-27 Siemens Ag Vorrichtung zum Herstellen von elektrischen Baugruppen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005032232A1 (fr) * 2003-09-26 2005-04-07 Siemens Aktiengesellschaft Tete d'insertion pour l'assemblage de substrats avec des composants electriques

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