EP1701827A1 - Cutting device and control of the cutting device - Google Patents

Cutting device and control of the cutting device

Info

Publication number
EP1701827A1
EP1701827A1 EP04803474A EP04803474A EP1701827A1 EP 1701827 A1 EP1701827 A1 EP 1701827A1 EP 04803474 A EP04803474 A EP 04803474A EP 04803474 A EP04803474 A EP 04803474A EP 1701827 A1 EP1701827 A1 EP 1701827A1
Authority
EP
European Patent Office
Prior art keywords
cutting
force
cutting knife
wire
knife
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP04803474A
Other languages
German (de)
French (fr)
Inventor
Hans Jürgen HESSE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hesse and Knipps GmbH
Original Assignee
Hesse and Knipps GmbH
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 Hesse and Knipps GmbH filed Critical Hesse and Knipps GmbH
Publication of EP1701827A1 publication Critical patent/EP1701827A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005—Apparatus not specifically provided for elsewhere
    • H01L21/67011—Apparatus for manufacture or treatment
    • H01L21/67138—Apparatus for wiring semiconductor or solid state device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
    • H01L24/78—Apparatus for connecting with wire connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
    • H01L2224/78—Apparatus for connecting with wire connectors
    • H01L2224/7855—Mechanical means, e.g. for severing, pressing, stamping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details

Definitions

  • the invention relates to a cutting device for a bonding machine with a cutting knife for severing a bonding wire, the cutting knife being directly or indirectly movably attached to a main movement device of a bonding machine in the vertical feed direction.
  • the invention further relates to a method for controlling the cutting movement of a cutting knife in bonding machines for at least partially cutting a bonding wire.
  • Cutting devices in bonding machines are known and are used for at least partially severing a bonding wire. It is known to provide cutting knives with separate drives in order to be able to move a cutting knife independently of a main movement device or to move the cutting knife directly with a main movement device.
  • the object of the invention is to provide a device and a method with which reliable control / regulation of the bonding force is achieved and which preferably also provide information about the degree of knife wear, that is to say about its current sharpness.
  • This object is achieved in that the cutting knife when placed on an at least partially cut wire by moving the Main movement device can be acted upon by a spring element with a cutting force to be exerted on the wire.
  • the cutting force results essentially from the static force effect which is achieved by means of the spring element.
  • a spring element e.g. a compression spring, leaf spring or the corpse
  • the spring element is preferably arranged between a cutting knife holder and an element of the main movement device, the cutting knife holder being movably mounted on the main movement device, in particular by means of a swivel joint, a linear guide or solid-state joints.
  • the range of motion of the cutting knife relative to the main movement device in particular with respect to a zero point position, can be determined by means of a sensor.
  • the speed of the knife with respect to the bonding wire can be known or can be determined.
  • the cutting force can thus be determined from the relative position of the cutting knife to its zero point position.
  • the force applied by the cutting knife to the wire can be determined from the position of the cutting knife in relation to a zero point position and a force characteristic of the spring element which can be tensioned by the movement of the cutting knife and by means of which a force is exerted on the wire via the cutting knife.
  • the speed of the cutting knife can also be incorporated into the force control.
  • the actual force can then be regulated, for example, by changing the position of the cutting knife relative to the zero point position and / or the speed of the cutting knife. This changes the deflection of the spring element and, depending on the force characteristic of this spring element, the force applied.
  • the force is also a function of the speed at which the knife moves relative to the bond wire. This speed can be determined on the basis of the speed of movement of the main movement device before it is placed on the bonding wire. After placement, the wire cuts into the wire due to the spring force, the main movement device being moved up to a set depth of cut in the Z direction. The cutting force can be permanently monitored during the cutting process. If this exceeds a maximum permitted value, the movement parameters of the main movement device must be adapted, in particular the speed can be reduced for this.
  • the cutting process and in particular a desired cutting force can be controlled and / or readjusted very precisely within wide limits.
  • a degree of cutting knife wear can be obtained.
  • a predetermined maximum cutting force is exceeded at or below a predetermined minimum cutting speed, it can be assumed that the knife is no longer sufficiently sharp and must be replaced due to wear.
  • this method offers the advantage, in addition to force control, that a knife can be replaced as required.
  • Figure 1 shows at least part of the main movement device 1 of a bonding machine.
  • the transducer 2 is attached to this (not shown here) with an ultrasound tool 3.
  • a cutting knife holder 5 is connected to the main movement device 1 via a swivel joint 4, so that they can move relative to one another.
  • a cutting knife 6, whose lower knife tip is cranked here, is attached to the cutting knife holder and points vertically downward to a bond point.
  • the cutting knife 6 is placed on the bonding wire, not shown.
  • the initial force essentially results from an overstroke of the main movement device 1 beyond this zero point position.
  • the spring 7 located between the cutting knife holder 5 and the main movement device 1 is compressed, so that a force which corresponds to the spring force acts on the wire 6 via the knife and cuts it.
  • the decisive factor for the effective force is the degree of compression of the spring, which is influenced by the speed of the main movement device and the sharpness of the knife.
  • Force or deflection can be measured by a position sensor 8, which determines the position of the knife 6 relative to the zero point position.
  • the current force can then be determined based on the force characteristic and e.g. in the event of a deviation from a desired force, the influencing variables, e.g. the cutting speed to be recalculated.
  • Figure 2 shows a section of the arrangement in an alternative construction from the front, where instead of a swivel joint, a spring steel connection was chosen in order to flexibly couple the knife holder and the main movement device with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Wire Bonding (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Sawing (AREA)

Abstract

The invention relates to a cutting device, for a bonding machine, with a cutting blade for separating a bonding wire, whereby the cutting blade is directly or indirectly mounted on a main displacement device of a bonding machine, such as to be displaced in a vertical projection direction. On placing the cutting blade on a wire for at least partial cutting, by displacement of the main displacement device the cutting blade may be applied with a cutting force for application to the wire, by means of a spring element. The invention further relates to a method for control of the cutting process.

Description

SCHNEIDEVORRICHTUNG UND STEUERUNG DER SCHNEIDEVORRICHTUNG CUTTER AND CONTROL OF THE CUTTER
Schneidvorrichtungcutter
Die Erfindung betrifft eine Schneidvorrichtung für eine Bondmaschine mit einem Schneidmesser zum Durchtrennen eines Bonddrahtes wobei das Schneidmesser direkt oder indirekt an einer Hauptbewegungseinrichtung einer Bondmaschine in vertikaler Vorschubrichtung beweglich befestigt ist. Die Erfindung betrifft weiterhin ein Verfahren zur Steuerung der Schnittbewegung eines Schneidmessers in Bondmaschinen zum wenigstens teilweisen Schneiden eines Bonddrahtes.The invention relates to a cutting device for a bonding machine with a cutting knife for severing a bonding wire, the cutting knife being directly or indirectly movably attached to a main movement device of a bonding machine in the vertical feed direction. The invention further relates to a method for controlling the cutting movement of a cutting knife in bonding machines for at least partially cutting a bonding wire.
Schneidvorrichtung bei Bondmaschinen sind bekannt und dienen zum zumindest teilweisen Durchtrennen eines Bonddrahtes. Hierbei ist es bekannt, Schneidmesser mit separaten Antrieben zu versehen, um unabhängig von einer Hauptbewegungseinrichtung ein Schneidmesser bewegen zu können oder das Schneidmesser direkt mit einer Hauptbewegungseinrichtung zu bewegen.Cutting devices in bonding machines are known and are used for at least partially severing a bonding wire. It is known to provide cutting knives with separate drives in order to be able to move a cutting knife independently of a main movement device or to move the cutting knife directly with a main movement device.
Beide Methoden geben keine genaue Auskunft über die tatsächlich am Bonddraht wirkenden Kräfte und erlauben daher nur eine unzureichende Steuerung bzw. Regelung der Schneidkraft.Both methods do not provide precise information about the forces actually acting on the bond wire and therefore only allow inadequate control or regulation of the cutting force.
Aufgabe der Erfindung ist es eine Vorrichtung und ein Verfahren bereit zu stellen, mit denen eine zuverlässige Steuerung / Regelung der Bondkraft erreicht wird und welche bevorzugt noch eine Auskunft geben über den Grad der Messerabnutzung, also über dessen aktuelle Schärfe.The object of the invention is to provide a device and a method with which reliable control / regulation of the bonding force is achieved and which preferably also provide information about the degree of knife wear, that is to say about its current sharpness.
Diese Aufgabe wird dadurch gelöst, dass das Schneidmesser beim Aufsetzen auf einen zumindest teilweise zu schneidenden Draht durch Bewegung der Hauptbewegungseinrichtung mittels eines Federelementes mit einer auf den Draht auzuübenden Schneidkraft beaufschlagbar ist.This object is achieved in that the cutting knife when placed on an at least partially cut wire by moving the Main movement device can be acted upon by a spring element with a cutting force to be exerted on the wire.
Dadurch dass die Kraft nicht direkt durch die Hauptbewegungseinrichtung sondern über ein Federelement, z.B. eine Druckfeder, Blatttfeder oder der leichen ausgeübt wird, ergibt sich die Schneidkraft im wesentlichen aus der statischen Kraftwirkung die mittels des Federelementes erzielt wird. Je nach Weite der Bewegung des Schneidmessers gegenüber der Hauptbewegungseinrichtung bzw. einer gegenüber der Hauptbewegungseinrichtung ortsfesten Nullpunktsposition und einer damit verbundenen mehr oder weniger starken Stauchung oder Streckung des Federelementes kann die wirkende Kraft geändert werden.Because the force is not directly through the main movement device but via a spring element, e.g. a compression spring, leaf spring or the corpse is exerted, the cutting force results essentially from the static force effect which is achieved by means of the spring element. Depending on the width of the movement of the cutting knife with respect to the main movement device or a zero point position which is stationary with respect to the main movement device and a more or less severe compression or extension of the spring element connected therewith, the acting force can be changed.
Um dies zu erreichen, ist bevorzugt das Federelement zwischen einer Schneidmesserhalterung und einem Element der Hauptbewegungseinrichtung angeordnet, wobei die Schneidmesserhalterung an der Hauptbewegungseinrichtung beweglich gelagert ist, insbesondere mittels eines Drehgelenkes, einer Linearführung oder Festkörpergelenken.In order to achieve this, the spring element is preferably arranged between a cutting knife holder and an element of the main movement device, the cutting knife holder being movably mounted on the main movement device, in particular by means of a swivel joint, a linear guide or solid-state joints.
In vorteilhafter Ausgestaltung kann die Bewegungsweite des Schneidmessers relativ zur Hauptbewegungseinrichtung, insbesondere bezogen auf eine Nullpunktsposition, mittels eines Sensors ermittelbar sein. Ebenso kann die Geschwindigkeit des Messers bzgl. des Bonddrahtes bekannt sein oder ermittelbar sein .In an advantageous embodiment, the range of motion of the cutting knife relative to the main movement device, in particular with respect to a zero point position, can be determined by means of a sensor. Likewise, the speed of the knife with respect to the bonding wire can be known or can be determined.
Mittels der erfindungsgemäßen Vorrichtung kann so die Schneidkraft aus der relativen Lage des Schneidmessers zu seiner Nullpunktsposition bestimmt werden. Hierzu kann die von dem Schneidmesser auf den Draht aufgebrachte Kraft ermittelt werden aus der Position des Schneidmessers gegenüber einer Nullpunktsposition und einer Kraftkennlinie des durch die Bewegung des Schneidmessers spannbaren Federelementes, mittels dem eine Kraft über das Schneidmesser auf den Draht ausgeübt wird.With the device according to the invention, the cutting force can thus be determined from the relative position of the cutting knife to its zero point position. For this purpose, the force applied by the cutting knife to the wire can be determined from the position of the cutting knife in relation to a zero point position and a force characteristic of the spring element which can be tensioned by the movement of the cutting knife and by means of which a force is exerted on the wire via the cutting knife.
Ergänzend zu der Ermittlung der Kraft anhand der Position des Schneidmessers kann noch die Geschwindigkeit des Schneidmessers mit in die Kraftregelung einfließen. Anhand eines Vergleiches einer ermittelten Ist-Kraft gegenüber einer Soll-Kraft oder einem Soll-Kraftintervall kann sodann die Ist-Kraft z.B. dadurch geregelt werden, dass die Position des Schneidmessers relativ zur Nullpunktsposition und/oder die Geschwindigkeit des Schneidmessers geändert wird. Hierdurch ändert sich die Auslenkung des Federelementes und in Abhängigkeit der Kraft-Kennlinie dieses Federelementes die aufgebrachte Kraft.In addition to determining the force based on the position of the cutting knife, the speed of the cutting knife can also be incorporated into the force control. On the basis of a comparison of a determined actual force against a target force or a target force interval, the actual force can then be regulated, for example, by changing the position of the cutting knife relative to the zero point position and / or the speed of the cutting knife. This changes the deflection of the spring element and, depending on the force characteristic of this spring element, the force applied.
Die Kraft ist ebenso eine Funktion der Geschwindigkeit mit der sich das Messer gegenüber dem Bonddraht bewegt. Diese Geschwindigkeit kann vor dem Aufsetzen auf den Bonddraht anhand der Bewegungsgeschwindigkeit der Hauptbewegungseinrichtung ermittelt werden. Nach dem Aufsetzen schneidet der Draht aufgrund der wirkenden Federkraft in den Draht ein, wobei die Hauptbewegungseinrichtung bis zu einer eingestellten Schnitttiefe in Z-Richtung verfahren wird. Hierbei kann während des Schneidvorganges die Schnittkraft permanent überwacht werden. Sollte diese einen maximal erlaubten Wert überschreiten, so müssen die Bewegungsparameter der Hauptbewegungseinrichtung angepasst werden, insbesondere kann die Geschwindigkeit hierzu reduziert werden.The force is also a function of the speed at which the knife moves relative to the bond wire. This speed can be determined on the basis of the speed of movement of the main movement device before it is placed on the bonding wire. After placement, the wire cuts into the wire due to the spring force, the main movement device being moved up to a set depth of cut in the Z direction. The cutting force can be permanently monitored during the cutting process. If this exceeds a maximum permitted value, the movement parameters of the main movement device must be adapted, in particular the speed can be reduced for this.
Gemäß der Erfindung kann der Schneidvorgang und insbesondere eine gewünschte Schneidkraft in weiten Grenzen sehr genau gesteuert und/oder nachgeregelt werden.According to the invention, the cutting process and in particular a desired cutting force can be controlled and / or readjusted very precisely within wide limits.
Durch Vergleich der ermittelten Schneidkräfte und Schneidgeschwindigkeiten mit vorgegebenen maximalen und minimalen Schneidkräften bzw. Schneidgeschwindigkeiten kann ein Grad der Schneid messerabnutzung gewonnen werden. Insbesondere bei Überschreiten einer vorgegebenen maximalen Schneidkraft bei oder unter einer vorgegebenen minimalen Schneidgeschwindigkeit ist davon auszugehen, dass das Messer keine ausreichende Schärfe mehr aufweist und aufgrund der Abnutzung ausgetauscht werden muss.By comparing the determined cutting forces and cutting speeds with predetermined maximum and minimum cutting forces or cutting speeds, a degree of cutting knife wear can be obtained. In particular when a predetermined maximum cutting force is exceeded at or below a predetermined minimum cutting speed, it can be assumed that the knife is no longer sufficiently sharp and must be replaced due to wear.
Gegenüber bisherigen Verfahren, wo Messer lediglich nach einer bestimmten Anzahl von Schneidvorgängen ausgetauscht wurden bietet dieses Verfahren neben der Kraftsteuerung/-regelung den Vorteil, dass ein Messer bedarfsgerecht ausgetauscht werden kann.Compared to previous methods, where knives were only exchanged after a certain number of cutting processes, this method offers the advantage, in addition to force control, that a knife can be replaced as required.
Dir Figuren 1 und 2 verdeutlichen Verfahren und Vorrichtung. Figur 1 zeigt zumindest einen Teil der Hauptbewegungseinrichtung 1 einer Bondmaschine. An dieses ist (hier nicht dargestellt) der Transducer 2 mit einem Ultraschallwerkzeug 3 befestigt.The figures 1 and 2 illustrate the method and device. Figure 1 shows at least part of the main movement device 1 of a bonding machine. The transducer 2 is attached to this (not shown here) with an ultrasound tool 3.
Über ein Drehgelenk 4 ist eine Schneidmesserhalterung 5 mit der Hauptbewegungseinrichtung 1 verbunden, so dass sich diese relativ zueinander bewegen können. An der Schneidmesserhalterung ist ein senkrecht nach unten auf eine Bondstelle weisendes Schneidmesser 6 befestigt, dessen untere Messerspitze hier gekröpft ist.A cutting knife holder 5 is connected to the main movement device 1 via a swivel joint 4, so that they can move relative to one another. A cutting knife 6, whose lower knife tip is cranked here, is attached to the cutting knife holder and points vertically downward to a bond point.
Wird die Hauptbewegungseinrichtung nach unten in Z-Richtung bewegt, so setzt das Schneidmesser 6 auf den nicht dargestellten Bonddraht auf. Die Initial-Kraft ergibt sich im wesentlichen durch einen Überhub der Hauptbewegungseinrichtung 1 über diese Nullpunktsposition hinaus. Hierdurch wird die zwischen Schneidmesserhalterung 5 und Hauptbewegungseinrichtung 1 befindliche Feder 7 gestaucht, so dass eine Kraft, die der Federkraft entspricht über das Messer 6 auf den Draht einwirkt und diesen schneidet. Maßgeblich für die wirkende Kraft ist der Stauchungsgrad der Feder, welcher durch die Geschwindigkeit der Hauptbewegungseinrichtung sowie die Schärfe des Messers beeinflusst wird.If the main movement device is moved downward in the Z direction, the cutting knife 6 is placed on the bonding wire, not shown. The initial force essentially results from an overstroke of the main movement device 1 beyond this zero point position. As a result, the spring 7 located between the cutting knife holder 5 and the main movement device 1 is compressed, so that a force which corresponds to the spring force acts on the wire 6 via the knife and cuts it. The decisive factor for the effective force is the degree of compression of the spring, which is influenced by the speed of the main movement device and the sharpness of the knife.
Kraft bzw. Auslenkung können durch einen Positionssensor 8 gemessen werden, der die Position des Messers 6 gegenüber der Nullpunktsposition bestimmt. Anhand der Kraftkennlinie kann sodann die aktuelle Kraft bestimmt und z.B. bei Abweichung von einer gewünschten Kraft können für den nächsten Schneidvorgang die Einflußgrößen, wie z.B. die Schnittgeschwindigkeit, neu berechnet werden.Force or deflection can be measured by a position sensor 8, which determines the position of the knife 6 relative to the zero point position. The current force can then be determined based on the force characteristic and e.g. in the event of a deviation from a desired force, the influencing variables, e.g. the cutting speed to be recalculated.
Unterschreitet die Geschwindigkeit der Hauptbewegungseinrichtung eine Mindestgeschwindigkeit und überschreitet dabei die Kraft eine Maximalkraft, so ist dies insbesondere ein Zeichen für ein stumpfes Messer 6, welches sodann ausgewechselt werden sollte.If the speed of the main movement device falls below a minimum speed and the force exceeds a maximum force, this is in particular a sign of a blunt knife 6, which should then be replaced.
Figur 2 zeigt im Schnitt die Anordnung in alternativer Bauweise von vorne, wo statt einer Drehgelenkverbindung eine Federstahlverbindung gewählt wurde, um Messerhalterung und Hauptbewegungseinrichtung miteinander flexibel zu koppeln. Figure 2 shows a section of the arrangement in an alternative construction from the front, where instead of a swivel joint, a spring steel connection was chosen in order to flexibly couple the knife holder and the main movement device with one another.

Claims

Patentansprüche claims
1. Schneidvorrichtung für eine Bondmaschine mit einem Schneidmesser zum Durchtrennen eines Bonddrahtes wobei das Schneidmesser direkt oder indirekt an einer Hauptbewegungseinrichtung einer Bondmaschine in vertikaler Vorschubrichtung beweglich befestigt ist, dadurch gekennzeichnet, dass das Schneidmesser beim Aufsetzen auf einen zumindest teilweise zu schneidenden Draht durch Bewegung der Hauptbewegungseinrichtung mittels eines Federelementes mit einer auf den Draht auzuübenden Schneidkraft beaufschlag bar ist.1. Cutting device for a bonding machine with a cutting knife for severing a bonding wire, the cutting knife being directly or indirectly movably attached to a main movement device of a bonding machine in the vertical feed direction, characterized in that the cutting knife when placed on an at least partially cut wire by moving the main movement device is acted upon by a spring element with a cutting force to be exerted on the wire.
2. Schneidvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das Federelement zwischen einer Schneidmesserhalterung und einem Element der Hauptbewegungseinrichtung angeordnet ist, wobei die Schneidmesserhalterung an der Hauptbewegungseinrichtung beweglich gelagert ist, insbesondere mittels eines Drehgelenkes, einer Linearführung oder Festkörpergelenken.2. Cutting device according to claim 1, characterized in that the spring element is arranged between a cutting knife holder and an element of the main movement device, the cutting knife holder being movably mounted on the main movement device, in particular by means of a rotary joint, a linear guide or solid-state joints.
3. Schneidvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Bewegungsweite relativ zur Hauptbewegungseinrichtung, insbesondere bezogen auf eine Nullpunktsposition, mittels eines Sensors ermittelbar ist.3. Cutting device according to one of the preceding claims, characterized in that the range of motion relative to the main movement device, in particular with respect to a zero point position, can be determined by means of a sensor.
4. Schneidvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Schneidkraft ermittelbar ist aus der relativen Lage des Schneidmessers zu seiner Nullpunktsposition.4. Cutting device according to one of the preceding claims, characterized in that the cutting force can be determined from the relative position of the cutting knife to its zero point position.
5. Verfahren zur Steuerung der Schnittbewegung eines Schneidmessers in Bondmaschinen zum wenigstens teilweisen Schneiden eines Bonddrahtes, insbesondere mittels einer Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die von dem Schneidmesser auf den Draht aufgebrachte Kraft ermittelt wird aus der Position des Schneidmessers gegenüber einer Nullpunktsposition und einer Kraftkennlinie eines durch die Bewegung des Schneidmessers spannbaren Federelementes, mittels dem eine Kraft über das Schneidmesser auf den Draht ausgeübt wird.5. A method for controlling the cutting movement of a cutting knife in bonding machines for at least partially cutting a bonding wire, in particular by means of a device according to one of the preceding claims, characterized in that the force applied by the cutting knife to the wire is determined from the position of the cutting knife in relation to one Zero point position and a force characteristic curve by the movement of the Cutting knife tensionable spring element, by means of which a force is exerted on the wire via the cutting knife.
6. Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass anhand eines Vergleiches einer ermittelten Ist-Kraft gegenüber einer Soll- Kraft oder einem Soll-Kraftintervall die Ist-Kraft für den nächsten Schneidvorgang durch Neufestlegung der Geschwindigkeit der Hauptbewegungseinrichtung so eingestellt wird, dass sich sich im erlaubten Kraftintervall befindet.6. The method according to any one of the preceding claims, characterized in that the actual force for the next cutting process is set by redefining the speed of the main movement device on the basis of a comparison of a determined actual force against a target force or a target force interval is within the permitted force interval.
7. Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass aus der ermittelten Schneidkraft, insbesondere bei Überschreiten einer vorgegebenen maximalen Schneidkraft bei einer vorgegebenen minimalen Schneidgeschwindigkeit, ein Grad der Schneidmesserabnutzung gewonnen wird, insbesondere wobei durch die Bondmaschine ein Messerwechsel angefordert wird. 7. The method according to any one of the preceding claims, characterized in that from the determined cutting force, in particular when a predetermined maximum cutting force is exceeded at a predetermined minimum cutting speed, a degree of cutting knife wear is obtained, in particular wherein a knife change is requested by the bonding machine.
EP04803474A 2003-12-09 2004-12-03 Cutting device and control of the cutting device Withdrawn EP1701827A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10357822A DE10357822A1 (en) 2003-12-09 2003-12-09 cutter
PCT/EP2004/013745 WO2005058562A1 (en) 2003-12-09 2004-12-03 Cutting device and control of the cutting device

Publications (1)

Publication Number Publication Date
EP1701827A1 true EP1701827A1 (en) 2006-09-20

Family

ID=34638585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04803474A Withdrawn EP1701827A1 (en) 2003-12-09 2004-12-03 Cutting device and control of the cutting device

Country Status (4)

Country Link
EP (1) EP1701827A1 (en)
CN (1) CN1890068A (en)
DE (1) DE10357822A1 (en)
WO (1) WO2005058562A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006049625A1 (en) * 2006-10-20 2008-04-24 Hesse & Knipps Gmbh ultrasonic Bonder
CN102320052B (en) * 2011-09-19 2013-10-02 中国大冢制药有限公司 Combination cover cutting device
EP3046738A1 (en) * 2013-09-20 2016-07-27 Gerber Technology, Inc. Knife sensor apparatus for cutting sheet material
CN111590678B (en) * 2020-05-22 2021-11-05 广东博智林机器人有限公司 Wall paper cutting device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048690A (en) * 1960-11-02 1962-08-07 Bell Telephone Labor Inc Bonding apparatus
US4976392A (en) * 1989-08-11 1990-12-11 Orthodyne Electronics Corporation Ultrasonic wire bonder wire formation and cutter system
US6295729B1 (en) * 1992-10-19 2001-10-02 International Business Machines Corporation Angled flying lead wire bonding process
US5365657A (en) * 1993-02-01 1994-11-22 Advanced Interconnection Technology Method and apparatus for cutting wire
US5894981A (en) * 1996-11-27 1999-04-20 Orthodyne Electronics Corporation Integrated pull tester with an ultrasonic wire bonder
US6439448B1 (en) * 1999-11-05 2002-08-27 Orthodyne Electronics Corporation Large wire bonder head
US6301777B1 (en) * 1999-11-16 2001-10-16 Autoliv Asp, Inc. Applicator die for wire-to-terminal assembly
CN1516913A (en) * 2001-06-15 2004-07-28 施洛伊尼格控股有限公司 Processing device for cables or wires
DE50211351D1 (en) * 2002-04-12 2008-01-24 F & K Delvotek Bondtechnik Bonding wire cutter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005058562A1 *

Also Published As

Publication number Publication date
CN1890068A (en) 2007-01-03
DE10357822A1 (en) 2005-07-07
WO2005058562A1 (en) 2005-06-30

Similar Documents

Publication Publication Date Title
EP1760562B1 (en) Method for adaptive feed control on numerically controlled machine tools
EP2826572B1 (en) Spring coiling machine with adjustable cutting device
EP1849569B1 (en) Device for machining workpieces using ultrasound and method for operating such a device
DE2141521C3 (en) Setting device for a target stroke position of the movable tool part of a punching or nibbling machine
EP1426499A1 (en) Method and apparatus for end stroke dampening in hydraulic actuators of mobile working machines
EP2624990B1 (en) Method for cutting block materials and cutting machine for cutting block materials
DE2858367C2 (en)
DE102006023798B3 (en) Device for controlling a paper cutting machine
DE102006020429A1 (en) Ultrasonic guillotine has fixed anvil surface and cutting tool linked to energy source
EP1432556A2 (en) Device for slicing food products
EP1701827A1 (en) Cutting device and control of the cutting device
EP3589459A1 (en) Articulated-arm robot and method for machining a workpiece by means of the articulated-arm robot
EP3487647B1 (en) Process and device to shear a bar material
EP3585551A1 (en) Method for operating a workpiece machining system, and workpiece machining system
DE102019108452A1 (en) Cheese divider and method of separating a cheese product
WO2011083102A2 (en) Device for partially severing a workpiece
EP0389897B1 (en) Equipment for welding of bands
EP1492640B1 (en) Method for applying a working force to a workpiece
DE102007041977B4 (en) Method and device for pressing sheet-like material stacks when trimming in a cutting machine
DE60121721T2 (en) Cutting machine for tubular elements
DE4013906C2 (en) Method for cutting quality detection of a cutting machine for paper, cardboard or the like, and cutting machine
EP1704952B1 (en) Method of operating a slitting apparatus and slitting apparatus
DE2636451C3 (en) Control device for removing burrs on a butt welding machine
EP1762351A2 (en) Stapling device
DE308380C (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060516

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070703