DE102008047810A1 - Device for fastening electric, preassembled connection part such as soldering lug, solder contacts and/or plug connection at plane or arched disc, comprises a position detection device, and a disc receiving table with stops - Google Patents

Abstract

The device for fastening electric, preassembled connection part such as soldering lug, solder contacts and/or plug connection at plain or arched disc (1), which consists of a contact surface subjected by screen printing in thick-layer technology for contacting, comprises a position detection device, a disc receiving table with stops, means for moving the disc in x- and y-direction of a coordination system (2) lying in the disc plane, and/or means for the reception of the connection part to be fastened. The device for fastening electric, preassembled connection part such as soldering lug, solder contacts and/or plug connection at plain or arched disc (1), which consists of a contact surface subjected by screen printing in thick-layer technology for contacting, comprises a position detection device, a disc receiving table with stops, means for moving the disc in x- and y-direction of a coordination system (2) lying in the disc plane, and/or means for the reception of the connection part to be fastened. The means for the reception of the connection part to be fastened are freely fixable in the x-y-plane at or over the disc reception area. The reception means are assigned an adjustable laser solder head (4) and allow access of laser light in the area of the solder connection for the connection part to be fastened and/or suction cups (8) adjustable in z-direction are equipped at the receiving table for holding the disc during the soldering process. A carrier disc is equipped with interchangeable base frame as disc carrier means. The base frame forms the disc receiving table. The carrier disc is guidable from an assembled position into soldering position and then into a removal position. A stand receives guidable carrier plate with base frame. In a given stand position, soldering station is present. The receiving station and/or removal station are equipped to a fitting station. The soldering station comprises a roller-like fastener for the protection from emerging laser light. The position detection device is mounted on the base frame and scans the position of the bearing contact area or suitable marking points in contact-less manner. The suction cups adjustable in z-direction are arranged at a coordination table adjustable in x-y-direction. The disc supports itself over mold bearings that are formed as mold nest, against the base frame. The stops are adjustable in x or y-direction in order to ensures a fine positioning of the disc.

Description

The invention relates to a device for attaching electrical, also prefabricated connection parts such as solder tags, solder contacts, connectors or the like elements on flat or curved windows, z. B. vehicle windows, which for contacting at least one, for example by screen printing in thick-film technology applied contact surface comprising a position detection device, a disc receiving table with stops, means for moving the discs in the x and y direction of a lying in the disc plane coordinate system and means for receiving the fasteners to be fastened according to the preamble of claim 1 as an addition to DE 10 2007 026 323.8-34 ,

From the DE 10 2004 057 630 B3 For example, a method and apparatus for soldering induction heat terminals is previously known. In this solution, contact elements are soldered to solder pads disposed on a non-metallic disk using a soldering tool to radiate a magnetic field to the solder joints to heat them by induction. According to the invention, the size and the shape of the soldering tool are dimensioned as a function of the area on which a plurality of solder joints to be heated simultaneously in a soldering process are arranged. At the same time, the frequency used is adapted to the respective connection geometries and set as low as possible. With such a solution, a high operating speed with improved heating of the components to be soldered to be achieved.

It However, it has been shown that during induction heat-melting in many cases not the actual contact surfaces, but other coatings and screen printing elements, eg. B. ladder heated for a disk heater or dipoles of an antenna structure and possibly damaged.

The not pre-published, attributed to the applicant DE 10 2006 019 998.7 shows an apparatus and a method for soldering solder contacts on screen prints of car glass panes, wherein a base to be placed on a base frame is provided with a relative to this in an xy plane movable coordinate from an extended pre-station for loading and unloading the car glass into a retracted Processing plant can be brought. Furthermore, a fixable on the coordinate table, adapted to the mass and curvature of the respective car glass pane disc support available. About this disc support is a fixed to a head piece of the base frame removable disk with adapted to the number and arrangement of solder contacts on the screen printing of the individual car glass sheets soldering heads. The interchangeable plate for arranging and aligning the soldering heads has flanges, consoles and intermediate plates as well as a coding in the form of a hole pattern for identification. Furthermore, the disc support has at least one centering stop for the glass pane.

the method, First, the car glass panel in the mass and curvature adjusted disc support inserted, followed by a centering of the disc takes place. In the next step will be the car glass panel clamped against a front centering stop. Subsequently, the disc support with disc is retracted into the processing system, and up to a further stop located there. In the next Step is carried out with a fine positioning of the disc support the clamped car glass with the help of a controlled adjustment a coordinate table, with recourse to an optical detection of the respective contact strips or contact surfaces on the disc. After the fine positioning took place the soldering heads in the direction of the imprints, d. H. lowered the contact surfaces of the car glass panel. After that The individual solder contacts are in the recording of the soldering head inserted and there is a lowering of the soldering head for inductive soldering. Due to the special design of the Lötkopfes is the inductive heating only in the area of the opposite in the soldering process Surfaces while avoiding the heating of other screen-printed structural elements.

The Applicant's apparatus according to the above Describing should be in terms of their productivity and reproducibility further developed when performing the solder joints become.

Accordingly It is an object of the invention to provide a further developed device for fastening of electrical, also prefabricated connection parts such as soldering tags, Solder contacts, connectors or the like elements flat or curved discs, which for contacting at least one, for example by screen printing in thick film technology have applied contact surface indicate which automatic handling and thus high productivity guaranteed.

The Solution of the object of the invention is carried out with a device according to combination of features of the claim 1.

The device for attaching electrical, even prefabricated connection parts such as solder tags, solder contacts, connectors or the like elements on flat or curved windows according to parent application assumes that the Contacting at least one, for example, by means of screen printing thick-film applied contact surface on the disc is present. Furthermore, the device comprises a position detection device, a disc receiving table with stops, means for moving the disc in the x- and y-direction of a lying in the disc plane coordinate system and means for receiving the connecting parts to be fastened.

The Means for receiving the fasteners to be fastened are free in the xy plane on or above the disk receiving area fixable, with each receiving means an adjustable laser soldering or a soldering head are associated with a plurality of receiving means.

The Receiving means are designed so that at least in the area the solder joint a free access to the laser light allows to be fastened connection part.

Farther are on the shooting table several, adjustable in the z direction vacuum cleaner to hold the discs during the soldering process intended.

Ausgestaltend there is the possibility of a first variant of the invention Device with a roller shutter-like closure for protection To provide exiting laser light.

The Position detection device may be attached to the receiving table and serves to the location of the contact surfaces or others suitable marking points, which are located on the disc, contactless scan. This position detection device can be used as a laser scanner or as an optical detector using a CCD or CMOS camera, be formed.

The In the z-direction adjustable suckers are in one embodiment of the invention on a coordinate table which can be adjusted in the x and y directions arranged, which in turn is located on the receiving table.

at this first embodiment is based Slice over the shooting table on height adjustable Ballmounts off.

at a further embodiment of the device according to the parent application the stops are adjustable in at least the x or y direction, to ensure a fine positioning of the disc.

In In this case, in this embodiment of the invention the disc against two spaced x-stops and over a z. B. hydraulically actuated adjusting against pressed at least one y-stop.

The Adjustment for fine positioning of the disc then takes place with Aid of an optical measurement of markings and / or the contact surfaces, which are on the disk. Also in this embodiment The invention may use a camera for position detection use.

at the second variant of the device according to the parent application is adjacent to the transport means or otherwise at least one device for recording and placing the respective Connecting parts located. This device can be used as a pick and Place station or robots are running and over an independent location detection of the male and female to be placed connecting parts.

The Device for picking up and placing the respective connecting parts is able to mount the connecting parts either in the means or directly on the disc and the contact surfaces located there store. If the device for recording and placement the connecting parts this stores directly on the disc can either a holding finger to the final Solder the connection part remain fixed or it exists the possibility of fixing a pasty soldering agent to use.

The second embodiment of the device includes about In addition, several adjustable in z-direction stops to to lift the disc or to put on.

These Attacks interact with those also in z-direction adjustable suckers, so that the disc against the Stops can be fixed.

The Laser solder heads can also be used at the second Embodiment of the device arranged on the receiving table become.

alternative consists in a third embodiment of the device the possibility of using the laser soldering heads above to arrange the disc fixable on the receiving table.

In order to spend the disk of the transport in such a position that the contact surfaces are accessible to the disc depending on the arrangement of the laser solder heads, a device for receiving and turning the disc is provided in one embodiment of the invention. This device comprises gripping elements which are adjustable in height, wherein the gripping elements allow by rotation a turning of the recorded disc. For the purpose of turning the gripper on the Wheel side edges moved to. In the next step, a lifting of the gripper takes place until a sufficient distance has been reached by the transport means, and a subsequent execution of the pivoting movement for the purpose of turning. By lowering the height-adjustable gripper then the disc can be placed back on the transport.

The Means for picking up and turning the disc can at least a camera as a position detection device, which both the position of the disc as well as the arrangement of the contact surfaces detected on the disc or similar markings.

The teaching according to the invention now assumes that the means of transport is subject to further development by a transport plate is provided which is movable in displacement can be moved between several stations. These several stations can be arranged on a common frame and in the immediate vicinity of the actual soldering station be located.

The virtually standard transport plate takes on a base frame, which is adapted to the respective disc dimensions. At the base frame are mold pads as mold nests for the disk as well Fixed stops.

The Mold pads can be controlled by a linear guide movably mounted in z-direction and via an adjustable Be supported compression spring.

In a first and / or second station becomes the disc to be processed placed on the base frame, here the disc in lateral Positive fit with the mold supports or mold cavities passes. The transport plate with base frame and disc is then moved to a third station, where the soldering operations are carried out. This third station is the aforementioned soldering station.

in the Connection is the transport plate with base frame and disc too a fourth, the removal station transferred. After removal of the disc is the relevant transport plate available for refitting. In the meantime, However, it was already another transport plate with base frame equipped and spent from the second to the third station, so that in turn the soldering process can take place.

The Invention will be described below with reference to an embodiment and explained in more detail with the aid of figures become.

in this connection demonstrate:

1 Side views of a first device;

2 a plan view of the representations according to 1 the first device;

3 Side view and top view of a second variant of the device with automatic assembly;

4 Side view and top view of a third variant of the device with located above the disc Laserlötköpfen and also provided automatic assembly;

5 Front view and side view of a turning device for use in the devices according to 3 and 4 ;

6 a perspective view of the machine station;

7 a detailed representation of a mold nest and

8th a plan view of an exemplary machine station similar to the 6 ,

In the device according to the 1 and 2 is located on a disc receiving table in an x and y direction adjustable coordinate table 2 , The coordinate table 2 takes several suckers 8th on, with the help of which to be fitted disc 1 raised on the one hand, but on the other hand against the ball shots 5 can be fixed.

In addition, at least one y-hard stop 6 and at least two x-hard stops 7 available. Means for admission 9 the fasteners to be fastened are adjustably located on the receiving table, wherein each receiving means 9 an adjustable laser soldering head 4 or a soldering head are assigned a plurality of receiving means. These laser soldering heads 4 are also adjustable on a slide, in particular slidably guided.

As position detection or recognition device finds z. B. a laser scanner 3 Application. This scanner is capable, for. B. applied by screen printing contact surfaces which are located on the disc, so that a corresponding positional positioning of the disc 1 can be done.

The device according to the 1 and 2 is still with a housing 10 provided in the form of a shutter-like closure.

The procedure with reference to the device according to 1 and 2 and their operation is as follows.

First, the shutter is opened in the form of the shutter. Subsequently, the connecting parts to be soldered, z. B. solder terminals, in the receiving means 9 inserted.

After that, the disc becomes 1 from the operator to the ball pads 5 placed. The next step is the disc 1 then by hand to the fixed stops in the x direction 7 and y direction 6 moved and closed the shutter shutter.

Cylinders with suckers 8th then drive up and fix the disc 1 by a vacuum suction process.

The one on the disc 1 Contact surface imprint is due to movement of the coordinate table 2 in the x and y directions by means of scanning by the position detection device 3 opposite to the location of the receiving means 9 aligned.

In the next step, the cylinders go with the suckers 8th down and pull the disc 1 against in the receiving means 9 located solder terminals.

After that the laser soldering heads become 4 activated and there is a soldering of the solder contacts to the respective contact surfaces of the disc.

The suckers 8th then get off the disk 1 disconnected by switching off a vacuum connection, not shown in the drawing. After opening the closure, the disc can be removed.

The actual soldering process runs in the device according to the 1 and 2 automatically, but still a manual insertion of the solder contacts in the receiving means is required.

Another automation can with the devices according to the representations of the 3 to 5 respectively.

For further automation is a turning device 16 present, which is capable of slicing 1 by means of a height-adjustable turning unit, which gripper 19 includes, record and rotate. The turning device 16 has one or more cameras 15 on that the location of the disc 1 and thus also optically detect the position of the contact surfaces on the disc. The acquired data can be forwarded to a higher-level control unit.

On the basic frame as shown 3 are height adjustable stops 17 , Pneumatic cylinder with attached suction cups 8th , at least one movable y-stop 12 and at least one movable x-stop 11 is attached.

Furthermore, laser heads 4 on corresponding slide in appropriate number and position and the receiving means 9 available for solder contacts.

Laterally from the base frame are pick and place stations or robots 14 mounted for receiving and placing the solder contacts.

The robots 14 take over the solder contacts of lateral bands 13 and place them in the receiving means 9 ,

The respective position was previously from the data of the cameras 15 that are above the conveyor belts 13 are calculated.

The disc 1 self is about a means of transport 18 moved into the device.

Depending on the position of the disc 1 on the means of transport 18 If necessary, a turning with the help of the turning device 16 necessary. The turning device is capable of using the height-adjustable turning unit and the grippers 19 fix the disc, lift it and rotate it by 180 ° and put it back on the means of transport. This is done simultaneously via the cameras 15 the turning device 16 measure the position of the contact surfaces and thus also the disk itself.

After the measured data, the x- 11 and y- 12 Move stops. The travel and correction amount is determined on the basis of the measurement data obtained from the cameras.

With the help of the robot 14 The solder contacts are from the conveyor belt 13 taken and in the shots 9 used.

After that, the disc becomes 1 with the help of the means of transport 18 against the x-stops 11 drove and there is a pressing of the disc 1 with the help of the cylinder 20 against the Y-stop 12 ,

The height-adjustable stops 17 lift the disc 1 from the means of transport 18 off, taking with the help of the sucker 8th the disc 1 is fixed by suction.

The suckers which can be moved in the z-direction 8th pull the disc 1 against the likewise height-adjustable stops 17 , It then comes in a z-direction moving the recording 9 with the solder contacts, in the direction of the underside of the disc.

The pictures 9 have a template-like opening, z. B. in the form of a bore, so that the laser light of the laser heads 4 to the solder joint ge reached.

After activating the laser heads 4 The soldering process has been completed, the suckers 8th released by switching off the vacuum from the disc, it drive then the height-adjustable stops 17 down and there is a settling of the disc 1 on the means of transport 18 , About the means of transport 18 then the disc can be moved out of the device.

In the embodiment according to 4 are the laser heads 4 above the base plate and thus above the disc 1 ,

With the help of the robot 14 become the ones of the conveyor belts 13 each removed solder contacts 21 placed directly on the disc and the existing contact surfaces there and at least temporarily, ie fixed until the end of the soldering process.

Also in this variant of the invention, the recording means allow free access of the laser light, starting from the laser heads 4 to the soldering area.

In the variant after 4 becomes the disc 1 in the described turning device 16 with the help of the local cameras 15 optically measured with respect to the position of the contact surfaces. After this measurement process, the disc 1 about the means of transport 18 moved into the device.

During the transport of the disc into the device, the x-stops become 11 and the y-stops 12 method and thus the subsequent position of the disc 1 corrected. The correction amount was calculated by evaluating the signals from the cameras 15 that are in the turning device 16 are determined.

The disk is then moved by moving the transport 18 against the two x-stops 11 drove and there is a pressing of the disc 1 against the Y-stop 12 with the help of the cylinder 20 ,

The next step is to drive the height-adjustable stops 17 up and lift the disc 1 from the means of transport 18 from. After that, the cylinders suck 8th the disc and pull it down against the height-adjustable stops 17 ,

With the help of cameras 15 The location of the solder contacts on the conveyor belts 13 determined and about the robot 14 a corresponding solder contact selected and recorded and transferred to a positionally correct position and so on the disc 1 and the contact surface located there stored.

The robots 14 Press the solder contacts slightly against the disc 1 ,

The next step will be the laser heads 4 activated and there is the triggering of the soldering process.

After the robots 14 were moved back, takes place a release of the disc by switching off the vacuum of the suckers 8th , drive the height-adjustable stops 17 in -z direction down, leaving the disc 1 again on the means of transport 18 discontinued and removed from the treatment area.

The 6 shows a perspective view of the machine station according to the invention.

The soldering station 30 is referred to here as the third station (see also 8th ). The soldering station 30 is executed as explained above.

The soldering station 30 adjacent are further stations with station 1 . 2 and 4 according to 8th are designated.

In the stations 1 and or 2 the equipment will be in the station 3 the soldering process and in the station 4 the removal of the disc 1 realized. The individual stations are on a rack 31 Arranged over a rail guide 32 features.

The rail guide takes different transport plates 33 on. These quasi standard transport plates 33 in turn, each carry a base frame 34 whose configuration is roughly adapted to the disc dimensions.

At the base frame are sufficient stops 35 as well as mold pads 36 attached. The mold pads 36 form a mold nest for safe picking up the pane 1 ,

Like in the 7 recognizable, there is a mold nest on the base frame 34 can be fixed, from a mold support 37 , a linear guide 38 and a spring-biased bearing 39 ,

The top view 8th shows how in the station 3 the disc 1 is held for the soldering process. In the stations 1 and 4 are empty base frames 34 shown. In the station 4 was the previously in the station 3 taken soldered disc. The in the station 1 and 4 located base frame 34 can be re-equipped. After z. B. in the station 1 the assembly of the base frame was done with a disc, the arrangement thus populated about the station 2 in the soldering station (station 3 ) to realize the desired soldering operations. To avoid dead times, both in the station 1 as well as in the station 2 be fitted. The station 4 can connect another station to z. B. a soldered disc together Move the transport plate and base frame to a parking position in order to carry out a quality control.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102007026323 [0001]
• DE 102004057630 B3 [0002]
• - DE 102006019998 [0004]

Claims (7)

Device for fastening electrical, also prefabricated connection parts such as soldering tags, soldering contacts, plug connectors or similar elements on flat or curved disks, which for contacting at least one, for example by screen printing in thick film applied contact surface, comprising a position detection device, a disk receiving table with stops, means for Moving the disks in the x- and y-direction of a coordinate system lying in the disk plane and means for receiving the connecting parts to be fastened, wherein the means for receiving the connecting parts to be fastened are freely fixable in the xy plane on or above the disk receiving region, each or a plurality of receiving means is associated with an adjustable laser soldering and the receiving means at least in the region of the solder joint allow access of the laser light to be fastened to the connection part and several more on the receiving table In the z-direction adjustable suction for holding the discs are provided during the soldering process, characterized in that as a disc transport means at least one transport plate is provided with interchangeable base frame, the base frame forms the disc receiving table, further the transport plate from a loading position in the soldering position and from there into a removal position is movable. Device according to claim 1, characterized in that a frame has a plurality of movable transport plates receives with base frame, wherein in a predetermined frame position the Soldering station located as well as this adjacent at least a loading station and a removal station provided is. Device according to Claim 1 or 2, characterized that the soldering station a shutter-like closure for Has protection against leaking laser light. Device according to one of the preceding claims, characterized in that the position detection means attached to the base frame and the location of the contact surfaces or suitable marking points scans without contact. Device according to one of the preceding claims, characterized in that the adjustable in the z-direction suction arranged on a coordinate table which can be adjusted in the x-y direction are. Device according to one of the preceding claims, characterized in that the disc over several Mold pads, which are designed as a mold cavity opposite supported the base frame. Device according to one of the preceding claims, characterized in that the stops in at least x or y direction are adjustable to a fine positioning to ensure the disc.