WO2002071826A1 - Aufsetzkraft-erfassungseinrichtung für bestückvorrichtungen - Google Patents
Aufsetzkraft-erfassungseinrichtung für bestückvorrichtungen Download PDFInfo
- Publication number
- WO2002071826A1 WO2002071826A1 PCT/DE2002/000409 DE0200409W WO02071826A1 WO 2002071826 A1 WO2002071826 A1 WO 2002071826A1 DE 0200409 W DE0200409 W DE 0200409W WO 02071826 A1 WO02071826 A1 WO 02071826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holder
- detection device
- force
- placement
- force sensor
- Prior art date
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
- H05K13/0413—Pick-and-place heads or apparatus, e.g. with jaws with orientation of the component while holding it; Drive mechanisms for gripping tools, e.g. lifting, lowering or turning of gripping 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
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/081—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines
- H05K13/0815—Controlling of component placement on the substrate during or after manufacturing
Definitions
- the invention relates to a placement force detection device for placement devices for placing components on substrates.
- the movable part of the measuring system by means of which the placement force can be determined, has very large masses, which falsify the measurement result and lead to excessive stress on the components.
- the measuring system for detecting the placement force has a large distance from the point at which the component is to be fitted, as a result of which many components are involved in the measurement of the placement force or have to be moved to measure the placement force .
- the invention has for its object a placement force
- Specify detection device by means of which the placement force of a component on a substrate can be specified more reliably and more precisely.
- the invention provides a placement force detection device for placement devices for placing components on substrates, which has a holder, a component gripper held by the holder for gripping the components, and a force sensor coupled to the holder and the component gripper for measuring Has forces that act on the component gripper in an insertion direction.
- the force sensor is arranged between the holder and the component gripper. As a result, the force sensor can detect forces in the fitting direction without disturbing vibrations.
- only the component gripper is moved relative to the force sensor during the detection of the placement force of the component on the substrate.
- the masses which have to be moved in the fitting direction to measure the placement force are therefore very small.
- the component gripper can be held on the holder such that it can move in the fitting direction, and a spring with a progressive spring constant coupled to the force sensor can be arranged before or after the force sensor in the fitting direction between the holder and the component gripper.
- the component gripper arranged on the holder is moved towards the substrate, for example by means of a drive coupled to the holder, until it has been detected by the force sensor that the predetermined placement force has been reached.
- the drive is switched off when the predetermined force is detected by the force sensor.
- the component gripper can, for example, be held on the holder directly by the spring and the force sensor. An additional guidance of the component gripper on the holder is not necessary here. Faults in the measurement result of the placement force detection device, for example due to bearing forces of a mounting of the component gripper on the holder, do not occur.
- the holder can also have a suction channel for conducting a vacuum on the component gripper. This makes it possible to use a vacuum pipette as a component gripper.
- Vacuum pipettes of this type can be designed very easily, as a result of which the masses to be moved when measuring the placement force are very small. This ensures a high level of measurement accuracy. It also prevents components from being damaged due to large moving masses and their inertia.
- the component gripper can be removably arranged on the holder. This ensures that the appropriate component gripper can be used for different components.
- the force sensor can be a strain gauge and / or a piezoceramic force sensor. With such sensors, the application force can be detected directly as the voltage applied to the piezoceramic force sensor or as a change in resistance of the strain gauge.
- the spring constant does not have to be taken into account in order to detect the force, since the force sensor converts the contact force directly into an electrical measurement variable corresponding to the force.
- the spring can, for example, have a rubber-elastic material.
- the holder can be hollow-cylindrical, the component gripper can be a vacuum pipette, and the force sensor and the spring can each be annular.
- the spring has a cross section that tapers toward the component gripper.
- the component gripper can, for example, be plugged onto the hollow cylindrical holder or onto the force sensor or the spring. This enables a compact arrangement of the placement force detection device according to the invention with wrestle with moving masses to determine the contact force.
- FIG. 1 shows a section of a preferred embodiment of the invention.
- a placement force detection device 100 has a component gripper 110 in the form of a vacuum pipette.
- the vacuum pipette 110 is provided with an opening 115 at its end facing the substrate 400. If vacuum is applied to the vacuum pipette 110, a component 300 can be sucked into the opening 115 and held there by vacuum.
- the vacuum pipette 110 is arranged on a holder 130, for example plugged onto the holder, and fastened to the holder 130 by means of a sealing ring 120, which also serves as a damping material.
- the holder 130 is provided with a suction channel 200.
- the holder 130 has a hollow cylindrical shape and the suction channel 200 leads through the hollow cylinder.
- a stop 135 is also provided on the holder 130.
- the stop 135 is designed, for example, as an annular stop which protrudes radially from the hollow cylindrical holder 130.
- a force sensor 140 for example in the form of an annular piezoceramic force transducer, is provided on the surface of the stop 135 facing the vacuum pipette 110.
- a spring 150 is attached to the force sensor 140, which is, for example, an annular elastomer or rubber spring, which has a triangular cross section, which tapers towards the vacuum pipette 110.
- the vacuum pipette 110 is displaceably arranged on the holder 130 relative to the holder 130 in the loading direction B, in the figure the direction perpendicular to the substrate.
- the holder 130 can be displaced in the populating direction, so that the vacuum pipette can be moved in the populating direction B relative to the substrate 400.
- the spring constant of the spring 150 can, for example, be progressive in order to create a large spectrum for possible contact forces with a relatively small total spring travel.
- the detection of the placement force by the force sensor 140 is not dependent on the spring constant of the spring 150, since the force sensor 140 is arranged in the force flow of the placement force in the fitting direction. This enables a direct measurement of the placement force by the force sensor 140.
- the arrangement of the force sensor 140 according to the invention in the flow of force of the placement force of the component 300 onto the substrate 400 ensures that both very low placement forces and very large placement forces can be detected exactly , because the mass to be moved during the measurement, the vacuum pipette 110, is very small.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Operations Research (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Manipulator (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10290890T DE10290890D2 (de) | 2001-03-02 | 2002-02-04 | Aufsetzkraft-Erfassungseinrichtung für Bestückvorrichtungen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10110266.6 | 2001-03-02 | ||
DE10110266A DE10110266C1 (de) | 2001-03-02 | 2001-03-02 | Aufsetzkraft-Erfassungseinrichtung für bestückvorrichtungen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002071826A1 true WO2002071826A1 (de) | 2002-09-12 |
Family
ID=7676190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/000409 WO2002071826A1 (de) | 2001-03-02 | 2002-02-04 | Aufsetzkraft-erfassungseinrichtung für bestückvorrichtungen |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020121789A1 (de) |
DE (2) | DE10110266C1 (de) |
WO (1) | WO2002071826A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1424884A1 (de) * | 2002-11-29 | 2004-06-02 | Leica Geosystems AG | Verfahren zur Montage miniaturisierter Bauteile auf einer Trägerplatte |
CA2551191C (en) * | 2006-06-23 | 2016-04-05 | Keekyoung Kim | Electrothermally-driven mems microgrippers with integrated dual-axis capacitive force sensors |
US10500737B2 (en) * | 2016-06-28 | 2019-12-10 | Akribis Systems Pte Ltd | Pick-and-place device having force measurement capability |
KR102511887B1 (ko) * | 2018-06-07 | 2023-03-21 | 삼성디스플레이 주식회사 | 기판 이송 시스템 |
CN110936352B (zh) * | 2019-12-02 | 2024-05-03 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | 一种具有搓动功能的压电微夹钳 |
DE102020115552A1 (de) | 2020-06-11 | 2021-12-16 | Glaub Automation & Engineering GmbH | Verfahren zum Bestücken einer Platine mit elektronischen Bauteilen und Bestückungsvorrichtung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5285946A (en) * | 1991-10-11 | 1994-02-15 | Sanyo Electric Co., Ltd. | Apparatus for mounting components |
US5422554A (en) * | 1993-03-05 | 1995-06-06 | Motorola, Inc. | Vacuum nozzle capable of adjustable placing force |
US5523642A (en) * | 1992-09-28 | 1996-06-04 | Sanyo Electric Co., Ltd. | External force measuring system and component mounting apparatus equipped with same |
DE10016998C1 (de) * | 2000-04-05 | 2001-09-13 | Siemens Ag | Bestückvorrichtung mit einer Einrichtung zum Messen der Aufsetzkraft |
-
2001
- 2001-03-02 DE DE10110266A patent/DE10110266C1/de not_active Expired - Fee Related
-
2002
- 2002-02-04 WO PCT/DE2002/000409 patent/WO2002071826A1/de not_active Application Discontinuation
- 2002-02-04 DE DE10290890T patent/DE10290890D2/de not_active Expired - Fee Related
- 2002-03-01 US US10/084,996 patent/US20020121789A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5285946A (en) * | 1991-10-11 | 1994-02-15 | Sanyo Electric Co., Ltd. | Apparatus for mounting components |
US5523642A (en) * | 1992-09-28 | 1996-06-04 | Sanyo Electric Co., Ltd. | External force measuring system and component mounting apparatus equipped with same |
US5422554A (en) * | 1993-03-05 | 1995-06-06 | Motorola, Inc. | Vacuum nozzle capable of adjustable placing force |
DE10016998C1 (de) * | 2000-04-05 | 2001-09-13 | Siemens Ag | Bestückvorrichtung mit einer Einrichtung zum Messen der Aufsetzkraft |
Also Published As
Publication number | Publication date |
---|---|
DE10110266C1 (de) | 2002-09-05 |
DE10290890D2 (de) | 2004-04-15 |
US20020121789A1 (en) | 2002-09-05 |
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