DE3318110C2 - Device for assembling printed circuit boards - Google Patents

Abstract

The invention relates to a device for populating printed circuit boards with electronic components. Here, the connection feet of the components are inserted into connection openings of the printed circuit board resting on an anvil. A monitoring device checks the passage of the connection feet through the connection openings in that spring-loaded plungers are moved by a certain amount for each connection foot and thereby close off outlet openings of fiber optic cables and thus cause a reflection. This reflection is evaluated. Depending on this, the cutting to length and bending of the connection feet on the side of the circuit board facing away from the components is released.

Claims (2)

1 2 F i g. 1 shows a perspective view of the sub-patent claims: Tool for a determination device, such as that made by Universal Instruments, for example 1. Apparatus for assembling printed circuit boards Corporation Subsiduary of Dover Corporation without the with electronic components, the connection and monitoring device of which is 5 supplied, feet in connection openings of the on an anvil F i g. 2 is an exploded view of the individual parts of the printed circuit board are inserted, and to the lower tool, Cutting to length and bending the connection feet above Fig. 3 is a sectional view of the from the bottom Anvil, the anvil with a monitoring device removed with an optical tool 10 devices operated via fiber optic cable Monitoring device for the on the component F i g. 4 and 5 are sectional views along the line the opposite side of the circuit board IV-IV or V-V by the monitoring device An according to Fig. 3 protruding from the connection openings. The bottom tool shown in the drawing is provided draws that each connecting foot (22) consists of a spring-loaded 15 on the frame 1 displaceably guided The plunger (12) is assigned to each of which th jaws 2 and 3, each as shown in FIG. 2 shows about a lug (17) is integrally formed, each of which has an intermediate plate 4 in which springs 5 are used for resetting opening (18) of the fiber optic cable (19) are held in the cutting and bending knife 6. The Abeiner Position of the plunger covering cover 7 is used to hold the cutting knife 6. 2. Device according to claim 1, characterized in that the cutting knife 6 is actuated by a tilting device, that the monitoring device the Ab- at 8, which engages in a groove 9 of the cutting knife 6 The bending process of the connecting feet (22) blocked. The monitoring device is on the jaws 2 or 3 10 held by tabs 11. In the monitoring input direction are plungers 12 against the force of a spring 25 13 slidably guided They are arranged in such a way that they are connected to the openings 14 via cutting blades 6 and The invention relates to a device for connecting openings 15 in circuit board 16 Equipping printed circuit boards with electronic component lights. The tappets 12 are equipped with lugs 17, elements whose connection feet in connection openings of the with outlet openings 18 of fiber optic cable inserted on an anvil lying circuit board 30 leg 19 can be brought into correspondence, are, and for cutting to length and bending the connection foot- To assemble, the circuit board 16 lies on the am- ße above the anvil, opening the anvil with an anvil 20. The electronic component 21 is with optical via fiber optic cable operated the connection feet 22 from the not shown Monitoring device for the on the component upper tool in the connection openings 5 of the conductor menten opposite side of the circuit board from 35 plate 16 inserted and, since this with the plungers 12 the connection foot alignments protruding from the connection openings, the connection foot ends 23 shift the interference ends is provided. ßel 12 by about 1 mm, so that the lugs 17 the exit With a device of the type mentioned above (close older openings of fiber optic cables. Patent application 33 29 062.8) the fiber optic effect. This light reflection is evaluated electrically. A Measuring sensor with the connection feet of the component 40 actual-target-value comparison represents the presence of the erdirekt together. Here, especially with ICs, the required number of connection feet can be fixed. Unless it is Plate-shaped connecting legs, which are pre-rotated in their position ne correspondence between the actual and nominal value false tripping occurs, d. H. the finished hand can be moved by the rocker arm 8 transmission process is interrupted. Such false triggering of the bending and cutting knife 6 take place so that the Solutions can also be achieved by means of different reflection legs on the one facing away from the components 21 just occur on the connection surface, cut off on one side of the printed circuit board 16 and so far off known device (US-PS 42 86 379) are bent that they are no longer from the circuit board pivotable levers associated with the connecting legs can fall out. The target / actual value monitoring net, which means practically no significant expenditure of time with the same position via corresponding through-, so opening an optical axis released, d. H. 50 that the assembly can be done relatively quickly. Of the here there is no selective recording of every single attachment intended. In addition, this must be taken to ensure that it is easy to set up in front of the test result only after the existing placement machine has expired without great effort Bending process, so that the can be used in the event of an error message. Connection feet bent up again and the circuit board 55 must be re-equipped. For this purpose 3 sheets of drawings The present invention aims to reasons to create a simple device, the one
real push-through check of the connecting legs before the
Turning and cutting off allows. This is easy to 60
before way achieved by the fact that each connection foot a
is assigned a spring-loaded plunger, each of which a flag is formed, each having an outlet opening of the fiber optic cable in a position of the
Tappet covers. 65 An exemplary embodiment is shown on the basis of the drawing
described according to the invention and the mode of operation explained in more detail. It shows