DE4136526A1 - Storage of drill bits for printed circuit board machining - involves contactless measurement of drill size during transfer from holder to allocated position in labelled magazine - Google Patents

Abstract

Drill-holders (20) contg. individually arranged drill bits (25) are placed in storage (1) in accordance with spatial coordinates and drill bit data held in the memory of a computer (7). A selected drill is extracted by a computer-controlled handling device movable in three dimensions (X,Y,Z), and transferred to a measurement station (10) where its effective dia. (35) and/or length (39) is measured using a laser beam and the drill is automatically inserted into the correct place in an encoded magazine (22). ADVANTAGE - Subjective sources of error in high-capacity storage are excluded, and reject rate is reduced drastically.

Description

The present invention relates to a method and a Device for magazining PCB drills in Drill magazines for use in PCB drilling machines.

In the process of PCB manufacturing PCB stack drilled automatically, the Loading the PCB drilling machines with drills or Milling to carry out the drilling or milling process in shape from magazines into which the drills or milling cutters are made according to one derived from a drilling plan Assembly plan are used to after the use of the Drill magazine in the PCB drilling machine in automatic tool changing processes for drilling the PCB stack to be used. Usually become drills or milling cutters with a diameter of 0.2 mm used up to 6 mm. An analysis of the PCB manufacturing committee has as The dominant cause of the committee is faulty drilling due to incorrect loading of the drill magazines, d. H. Use of drills or milling cutters with the wrong one Diameter.

The magazines are loaded manually so that subjective errors in the selection and placement of the PCB drills or milling cutters in the drill magazine for are responsible for the emerging committee. Because of the mostly drilling the PCB in batches Use of drills or milling cutters with the wrong one Diameter for a certain borehole is also slightly too  multiplying the errors in a drilling operation drilled or milled circuit boards and significant economic losses.

The provision of circuit board drills or milling cutters is carried out by the manufacturer in drill containers (Drill boxes) from which the PCB drills or milling cutters for equipping the Drill magazines are removed. Before the PCB drills or milling cutters in the drill magazines can generally be used with be fitted with a stop ring on the drill shaft, by the in the tool change process of the drill Clamping position is determined. To do this, either simple mechanical aids or special Ring winding machines for pulling a stop ring used on the drill or milling shank. This too Process before magazining the PCB drill or milling cutter is relatively labor intensive and one Error source when selecting the drill. Moreover, it is related disadvantageous on the ring winding machines that these without Touching the drill tip essentially only for Shank diameters up to 3.15 mm can be used. The shaft diameter is independent of Drill diameter the same in each case.

Based on the previously explained difficulties with both ringing circuit board drills or milling cutters all also the use of the correct drill or Milling cutter diameter according to a predefined drilling plan for the magazine of the in the PCB drilling machines used drill magazines, the object of the invention based on a method and a device for Storage of PCB drills in drill magazines for Specify use in PCB drilling machines by  that or through which it is possible to make subjective sources of error when magazining the PCB drills Assembly of the drill magazines with high magazine performance exclude and thereby the share of the committee at To dramatically reduce PCB manufacturing.

In an advantageous embodiment of the invention, it should also be possible, at the same time errors in the ringing to avoid PCB drills and efficiency an overall process of loading drill magazines including the ringing of PCB drills to increase considerably.

This object is achieved according to the invention in relation to the method of the type mentioned at the outset by the method steps:
Inserting drill containers with circuit board drills individually arranged in them into a drill magazine device with assignment of spatial coordinates and drill data,
Removing the PCB drill by a three-axis movable, computer-controlled XYZ handling device and transferring each PCB drill to a measuring station with a diameter detection device to determine the respective effective drill diameter and
Inserting the PCB drills into drill magazines.

According to an advantageous embodiment of the The method according to the invention is the circuit board drill from the measuring station into a Bering station in which a drill ring device is located, transferred and with a stop ring with detection of a ring length as well  provided with a ringing force.

To ensure an integral process control for the Drill magazines are used after another Embodiment of the method according to the invention Drill data including the spatial coordinates of the stationary recorded in the drill magazine PCB drills and drill-related operation data, such as B. wear data, in a memory Operating computer saved and constantly updated. For precise, automatic handling of the Circuit board drill is preferred in another Design of the method according to the invention Removing a PCB drill from a Drill container and before transfer to the measuring station with the Diameter detection device in which the Diameter detection device is located Reference position of the XYZ handling device is detected.

In a further advantageous embodiment of the inventive method is after delivery of the PCB drill to the Diameter detection device of the measuring station already previously measured and preferably also ringed PCB drill in a transfer position arranged pivotably between measuring and ringing station Transfer device by the XYZ handling device taken over and into a drill magazine in the Drill storage part of the drill magazine device transferred.

A high productivity in drill magazine storage according to a further preferred embodiment of the achieved method in that the XYZ handling device and the between measuring and  Beringstation working transfer device coordinated work at the same time and a plurality of PCB bores in at a certain time different phases of a magazine process located.

According to further advantageous aspects of the The method according to the invention is used to record the effective drill diameter of each PCB drill with simultaneous type determination while rotating the drill and use of a cutting geometry (drill type) taking into account the correction factor in the Diameter detection device of the measuring station by a Laser scan diameter detection in the cutting area of the PCB drill while the Bering length measurement in the neighboring Beringstation in connection with a Laser drill tip detection is done in conjunction with a predetermined position correlation between one Laser beam detector field and an assembly position of one Stop ring the PCB drill with your Drill shank in advance taking the ringing force into account in the respective, in the assembly position Stop ring are inserted until a detector signal from the Laser beam detector field reaching a target position the drill tip of the respective PCB drill indicated.

The above task is related to the facility for magazining PCB drills in drill magazines for use in PCB drilling machines solved according to the invention in that a computer-controlled Drill magazine device is provided with a Drill stock part to hold at least Drill containers with individual ones arranged in them PCB drills and to accommodate  Drill magazines, with at least one Diameter detection device in a measuring station for the circuit board drills and with a computer controlled XYZ handling device to promote PCB drill at least between the Drill storage part and the measuring station.

According to a preferred embodiment of the Drill magazine device is adjacent to the die Measuring station forming a diameter detection device Beringstation provided by a Drill ring device is formed, and between the Diameter detection device and the Drill ring device is a pivotable Transfer device arranged.

Preferably, for process control Drill magazine an operating and control computer for Operation of the drill magazine device provided, wherein the operating computer has a storage device, in which derives the data from a drill plan Drill assembly plan, drill data including the Spatial coordinates of the stationary in the Drill magazine device recorded PCB drills, as well as drill-related operation data, such as B. wear data, grinding cycles etc., saved are.

According to a further preferred embodiment of the drill magazine device according to the invention is in an integral cabinet unit and the Drill storage part in a side-by-side arrangement to an operating and control computer containing Control section as well as to the vertical with respect to the Control part arranged measuring station provided.  

Preferably, the measuring and ringing station with this operationally connecting transfer facility in essentially side by side and below the Control part of the drill magazine arranged.

For a particularly cheap handling of the PCB drill within the as an integral Cabinet unit trained drill magazine device is between the drill stock part on the one hand and the Control part with measuring and arranged below the same Bering station and transfer device on the other hand leave the vertical working shaft and insert it into this horizontal working arm of the XYZ handling device vertically movable.

A space-saving configuration for the inclusion of the PCB drill bit as well as a control technically favorable Positioning of the PCB drill is done after a thereby further preferred embodiment of the invention achieved that the drill stock part a plurality parallel, vertically sequential application levels has, which in connection with the XYZ handling device on by the control computer detectable spatial coordinate system is impressed. The Use levels are preferably by on one side of one side wall of the cabinet unit Projecting shelf panels formed, which in turn a plurality on their top have vertical guide rails, the distance between the upper edges of the guide rails Shelf panels to an underside of an overlying one Regalpaneeles is dimensioned such that the working arm of the XYZ handling device between vertically adjacent Shelf panels for removing or using a  PCB drill is movable.

The XYZ handling device is according to another preferred embodiment of the invention at least along a back of the drill stock part of the Cabinet unit movable and shows by an X-slide a vertical rail connected to the X-slide which a Z-slide is movably mounted, which in the essentially horizontal to the front of the cabinet unit projecting working arm, which in turn slidably a Y-carriage with one of a pair spaced gripper supports existing gripping device, each gripper is oppositely movable from a pair Gripper jaws exist.

For precise diameter determination or control of the Diameter one from a drill container through the XYZ handling device taken from PCB drill has the diameter detection device, the Forms measuring station, and the adjacent to the working shaft is arranged, a vertically movable, rotatable Clamping fixture for the shaft of the PCB drill bit as well a horizontally aligned laser scan micrometer, wherein a measurement window of the laser scan micrometer Passage of a gripper of the XYZ handling device in vertical direction for inserting a drill shaft in the clamping fixture allowed. This can be done vertically in an upper transfer / transfer position moves and then in a lower measuring position, in which the Cutting part of the PCB drill in the laser beam of the Laserscan micrometer located, are lowered. To the Drill shank of a diameter measured PCB drill bit with a stop ring for fixing the clamping position of the PCB drill in the Providing a drill is to hand over a  PCB drill from the measuring station in the Bering station in which the drill ring device is located in one between the measuring and Bering station Transfer device that can be swiveled horizontally provided by a toothed belt gear by about 100 ° is pivotable between the measuring and ringing station and one at its front end, with its gripper jaws in the Horizontal level grabs gripper that carries around its longitudinal axis through a pneumatic drive through 180 ° can be rotated.

According to a further preferred embodiment of the present invention exhibits that in the bering station located drill ring device through which the Stop ring is applied to the drill shaft, one Ring receptacle with a hole on the top one Mounting position for the stop ring is formed. Further a ring conveyor is provided for the stop rings, the via an opening into the assembly position Isolation channel is connected to the ring holder, and with a vertically movable one above the mounting position Gripper device and perpendicular to the Gripper device a ring length measuring device is arranged.

The ring length measuring device is preferably such designed that one opposite to the Gripper device arranged on one side of the same Laser beam source and one on the other side of the Gripper device arranged laser optics in connection with a slit diaphragm and a laser beam detector field are provided. By laser optics, preferably one Cylindrical lens, the laser beam is advantageous in only one plane according to the orientation of the Slit diaphragm and the detector field, preferably one  Photo diode line, spread.

Further, preferred embodiments of the Subject of the invention are in the remaining subclaims spelled out.

The invention is based on a Embodiment and associated drawings closer explained. In these show:

Fig. 1 (a) and Fig. 1 (b) is a perspective overall presentation position of a Bohrermagaziniereinrichtung, according to one embodiment of the invention in a schematic representation;

Fig. 2 (a) part of an XYZ-handling device of Bohrermagaziniereinrichtung of FIG. 1 during the removal of a printed circuit board drill from a drill container in a perspective and schematic representation,

Fig. 2 (b) is an enlarged, schematic representation of the clamping portions of a gripper of the XYZ-handling device according to Fig. 2 (a),

Fig. 3 shows a gripper of the XYZ-handling device according to Fig. 2 in the magazining of a printed circuit board drill in a drill bit magazine within the Bohrermagaziniereinrichtung of FIG. 1 in a perspective schematic representation,

Fig. 4 shows a transfer device with a printed circuit board drill in a schematic, perspective view,

Fig. 5 shows a transfer device of the Bohrermagaziniereinrichtung of Fig. 1 in different pivot positions with a gripper of the XYZ-handling device in a transfer position in a perspective schematic representation,

Fig. 6 is a schematic principle illustration of a diameter detecting device for PCB drills in perspective view,

Fig. 7, the diameter detecting device according to Fig. 5 in schematic diagram in plan view of a three-edged drill printed circuit board,

Fig. 8 is a view corresponding to that in Fig. 7 for a double-edged PCB drills,

Fig. 9 is a schematic basic illustration of a drill Bering device in perspective view;

Fig. 10 is a schematic view of the drill Bering apparatus of FIG. 9 in side view,

Fig. 11 is a schematic view of the drill Bering apparatus of FIG. 9 with respect to a detection of the cutting edge geometry of different directing insert drills or milling cutters, in plan view,

Fig. 12 is a schematic representation of the combination of the XYZ-handling device of Bohrermagaziniereinrichtung according to the present invention with various parts of the Bohrermagaziniereinrichtung and interaction of the various departments of the Bohrermagaziniereinrichtung with each other,

Fig. 13 is a timing chart for the operation of the Magazinierzyklen Bohrermagaziniereinrichtung for a specific Magazinierproblem.

With reference to FIGS. 1 (a) and 1 (b), an overall construction of a drill magazine device 1 according to the present invention will first be briefly explained, after which the main components of the drill magazine device 1 will be explained with reference to the associated further figures. An embodiment of the magazine method according to the present invention is finally shown in more detail in particular with reference to FIGS. 12 and 13.

It is pointed out that in the context of this application the term "drill" or "circuit board drill" always others, for PCB manufacturing and for "drilling" the PCB cutting tools used, in particular Milling tools, included, even if not on everyone It is pointed out in individual cases. In addition, the Invention does not apply to the magazine PCB drills, milling cutters or similar tools for PCB manufacturing limited; rather can too other cutting tools, in particular drills, milling cutters, Reamers etc. by a drill magazine device type described here z. B. for one or Multi-spindle NC machines in a corresponding manner be magazineed. The terms "PCB drills", "Drill magazine device", "Drill storage part" etc. are therefore in a corresponding, broad sense understand.  

Fig. 1 (a) shows the basic structure of the drill magazine device and the distribution of the main components within the drill magazine device. As shown in FIGS. 1 (a) and 1 (b), the drill magazine device forms an integral cabinet unit.

Fig. 1 (b) shows an overall view of the Bohrermagaziniereinrichtung for the magazining of PCB drills in a schematic view with the omission of the outer side walls, the rear wall and the front, the Bohrermagaziniereinrichtung front closing folding door and other trim elements to emerge as the interior design of the Bohrermagaziniereinrichtung 1 more clearly to let.

The drill magazine device 1 has, on the one hand, a drill storage part 3 formed by a shelf device 2 , which can be closed at the front by a folding door arrangement 4 , the folding doors of which are connected by hinges and whose left door in FIG. 1 (a) has front upper and lower engaging elements in an upper and lower door guide is laterally displaceable to the right to allow access to the rack device 2 of the drill storage part 3 . Separated by a housing cover 5 from the drill storage part 3 with the shelf device 2 , in FIGS . 1 (a) and 1 (b) there is a cabinet part with a control part 6 in the left part of the drill magazine device 1 , which has an operating computer 7 (PC) and contains a control computer 8 in the upper area, while under the control part 6 behind a door 9 there is a measuring station 10, which will be explained in detail below, and a ringing station 11 , operatively connected by a transfer device 12 .

As can be seen more clearly from FIG. 1 (b), there is a working shaft 13 for a vertical movement of a working arm 15 of an XYZ handling device 14 behind the housing cover 5 between the drill storage part 3 on the one hand and the control part 6 with the measuring and ringing station 10 , 11 underneath.

Further details of the internal structure of the drill magazine device 1 will first be explained with reference to FIG. 1 (b). Shelf panels 17 are provided within a base frame 16 of the drill magazine device 1, which are arranged on one side projecting inwards and freely cantilevering from the right side of the base frame in FIG. 1 (b) in a plurality of use planes. In Fig. 1, six insert levels are formed by shelf panels 17 , one of the use levels forming a working level 18 , provided by the penultimate shelf panel 17 . Under the last shelf panel 17 at the bottom there is space for accommodating supply units (not shown here) of the drill magazine device 1 .

As is apparent also from FIG. 1 (b), each Regalpaneel 17 upwardly projecting guide rails 19, which are formed in this embodiment, in all operating levels, with the exception of the working plane 18, in a uniform spacing on the top side of each shelf Paneeles 17 and the serve to securely accommodate drill containers 20 , which are shown in FIG. 1 (b) only in relation to their accommodation in the upper shelf panel 17 . Such a conventional drill container (drill box) can be seen in FIG. 2.

In the working level 18 , on the one hand, drill magazines 22 and drill disposal containers 23 and a drill reuse magazine 24 are arranged on pallets 21 between adjacent guide rails 19 . As a drill disposal container 23 as shown in FIG. 12, a drill containers are used 20, inserted into the associated working plane 18. The construction of the drill reuse magazine 24 corresponds essentially to that of a drill magazine 22 , but has a larger holding capacity.

Sufficient space is left between all the shelf panels 17 or the respective upper edge of the guide rails 19 and an underside of the overlying shelf panel 17 for the engagement of the working arm 15 of the XYZ handling device 14 , as will be explained below.

As can be seen from FIG. 1 (b), a space is left between a rear side of the drill magazine device 1 and the rear ends of the shelf panels 17 , into which the XYZ handling device 14 can move between the shelf panels 17 .

As particularly shown in FIGS. 1 (b) and 12, the XYZ handling device is the central conveying device for the movement of the circuit board drills 25 during a magazine operation. The XYZ handling device 14 has an X slide 26 which can be moved in an X coordinate direction along an upper and lower rail 27 of the base frame. With the X-carriage 26 a vertical rail 28 is preferably integrally in one piece, connected to which a bearing in the Z-coordinate direction along the vertical rail 28. Z-slide is displaceably mounted 29th Fig. 1 (b) schematically shows a mounted in the base frame 16 vertical drive shaft 50 for movement of the XYZ manipulator 14 in X direction. For movement of the circuit board drills 25 in the Y coordinate direction, a Z-slide 29 is connected to a working arm 15 which projects essentially horizontally from the latter to the front of the drill magazine device and on which a Y-slide 31 is mounted.

In this way, a three-axis movable handling device is created in order to move the circuit board drills 25 back and forth between the drill storage part 3 and the measuring station 10 and between the transfer device 12 and the drill magazines 22 or other working containers in the working plane 18 .

The Y slide 31 of the XYZ handling device 14 carries a gripper device 32 , which in the present case consists of a pair of grippers 33 spaced in the Y direction, which in turn each have a pair of oppositely movable and tension-actuatable gripper jaws 34 as organs for holding and Convey the circuit board drill 25 have. Such an arrangement enables the required movement paths of the Y slide to be subdivided in the Y direction, so that circuit board drills located in the rear region of the drill storage part are handled by the rear gripper 33 and circuit board drills 25 arranged towards the front of the drill magazine device 1 are handled by the front gripper 33 .

As also shown in FIGS. 2 (a) and 3, which show the different embodiments of the mounting of the circuit board drills 25 in the drill containers 20 ( FIG. 2 (a)) or in the drill magazines 22 ( FIG. 3), the gripper jaws have 34 in the clamped state, ie when a circuit board drill 25 is gripped, essentially has a U-profile shape.

As shown in FIG. 2 (b) shows in detail, the gripper jaws are a provided 34 of each gripper for holding the drill shank 25 a of the printed circuit board drill 25 with inwardly projecting each clamping portions 34, 34 b, such that the two gripper jaws 34 of a gripper 33 a mutually have different clamping geometries.

On the one hand, the circuit board drills 25 must be held reliably and with a high clamping force by the gripper jaw pair 34 of each gripper 33 , on the other hand, each gripper should also compensate for tolerance in the centering of the respective drill position, i.e. both tolerance compensation with respect to the circuit board drill 25 in the drill container 20 and with respect to it allow the position of the drill container 20 within the drill storage part 3 , since the position of the gripper 33 fixed by the control program determines the receiving or dispensing position of the circuit board drill 25 in question.

For this purpose, the clamping section 34 a of the one gripper jaw 34 of each gripper 33 is provided with a conical clamping free cut, formed by opposing clamping surfaces 34 c which converge at an angle of inclination α, the angle of inclination α preferably being about 9 in order to achieve a high holding force ° is.

On the other hand, the centering of the circuit board drill 25 with respect to an associated takeover or transfer position of the gripper 33 , that is to say a tolerance compensation between the longitudinal central axis of the printed circuit board drill 25 and the longitudinal central axis of the gripper 33 in a specific takeover or transfer position with simultaneous tolerance compensation in relation to the position of inclined to allow the printed circuit board drill 25 carrying container within the Bohrermagaziniereinrichtung 1, the associated opposing clamping section 34 b of the other gripper jaw 34 of the respective gripper 33 has a centering free section, formed by two against each other at an angle β of about 150 ° extending Centering surfaces 34 d. In this way, a reliable mounting of each circuit board drill 25 is made possible by the gripper 33 of the XYZ handling device 14 with simultaneous compensation of positional tolerances. The tolerance compensation relates in a corresponding manner to the correspondence between a transfer position B, which will be explained in more detail below, of a transfer device 12 and the associated position of the gripper 33 in question .

For handling the PCB drill 25 , z. B. their removal from a drill container 20 , the distance between adjacent shelf panels 17 offers enough space for the insertion of the working arm 15 in the horizontal direction between the shelf panels 17 and for vertical movement of the Z-slide 29 with the working arm 15 such that with appropriate clamping or release actuation of the gripper jaws 34 of a gripper 33, a circuit board drill 25 removed or z. B. can be used in a drill magazine 22 .

As shown in FIGS. 2 (a) and 3, the printed circuit board drills are located in the upright position in the drill containers 20 , the drills with the drill shank being generally inserted into the drill containers 20 . In FIG. 2 (a) a drill container 20 is shown with printed circuit board drill bits on the left side, while shown to the right of a drill tank 20 are accommodated in the printed circuit board cutter. In Fig. 3, the end of a Magaziniervorganges, namely the insertion of a printed circuit board drill is shown in a drill magazine 22 25, being employed in dependence on the configuration of the associated printed circuit board drilling machines and their receiver for the drill magazine 22, the printed circuit board drill with its drill shank in the drill magazine 22 (in Fig. 3 left) or inserted with its cutting part ahead continuously in the drill magazine 22 is (right side in Fig. 3). The drill magazines 22 are correspondingly designed differently, as shown in FIG. 3 for both applications.

Outside the drill storage part 3 , the working arm 15 of the XYZ handling device 14 moves vertically in the working shaft 13 for transferring a circuit board drill to the measuring station 10 on the other side of the working shaft 13 with respect to the shelf panels 17 or for receiving circuit board drills from the transfer device 12 between measuring and ringing stations 10 , 11 for inserting a circuit board drill into a drill magazine 22 .

As shown in FIG. 1 (b), the arrangement of the transfer device 12 and also the measuring station 10 is preferably such that they are arranged essentially horizontally on the working plane 18 , so that when a circuit board drill 25 is taken over by a gripper 33 the Working arm 15 and inserting the circuit board drill into a drill magazine 22 only slight vertical movements of the working arm 15 are required.

Although the measuring station 10 , the transfer device 12 and the ringing station 11 are explained in more detail below, Fig. 1 (b) already illustrates the main assemblies of each of these devices and their mutual position correlation. The measuring station 10 , which is used to determine the type and the diameter of the circuit board drill 25 , which has been removed from a drill box 20 and is intended for magazining, is formed by a diameter detection device 35 which, vertically movable, has a rotatable clamping receptacle 37 for the drill shaft 25 by means of a stepper motor 36 a of the circuit board drill 25 and a laser scan micrometer 38 for determining the drill diameter.

The ringing station 11 is formed by a drill ring device 39 , stop rings 40 being fed from a ring conveyor 41 into an assembly position via a separating channel 42 and a gripper device 44 , vertically driven by a motor 45 via a spindle 46 , being provided with a gripper 47 . The Bering length measuring device 48, which is explained in more detail below with reference to FIGS . 6 to 8, is not shown in FIG. 1 (b). The transfer device 12 is pivotably arranged between the measuring and ringing stations 10 , 11 , which will be explained in more detail below with reference to FIGS. 4 and 5.

Control part 3 with operating and control computer 7 and 8 is located above measuring station 10 , ringing station 11 and transfer device 12 .

The operating computer 7 (PC) connected to the control computer 8 is used to operate the drill magazine device 1 and has a storage device in which the data of a drill assembly plan derived from a drill plan include drill data including the spatial coordinates of the circuit board drills 25 stationary in the drill magazine device and drill-related operation data, such as B. number of regrinds etc., are saved and continuously updated. On the basis of this data, the stepper motors of the XYZ handling device 14 or the measuring station 10 , the ringing station 11 and the transfer device 12 are given the corresponding control commands for controlling the drill magazine device 1 . At the same time process data from the corresponding sensor signals z. B. in relation to the path control of the gripper or in relation to the further handling of drills, which are put back with their magazines after completion of the PCB drilling process in the working level 18 .

Fig. 4 shows schematically and in a perspective schematic diagram of the transfer device 12, between the measurement and Bering station 10, 11 is provided to a extracted by the XYZ-handling device 14 of a drill container 20 and inserted into the diameter detector 35 circuit board drill 25 from the measuring station 10 (Position A in FIG. 5) after the drill diameter has been recorded and transferred to the ring ring device 39 of the ringing station 11 (position C in FIG. 5) and after completion of a ringing process, which will be explained in more detail below, in the ringing station 11 again from the ringing station 11 there To take over gripper device 44 and keep it in a central transfer position B located between measuring and ringing stations 10 , 11 for transfer to a gripper 33 of the XYZ handling device 14 (see FIG. 5). The transfer device 12 has a toothed belt gear 30 , by means of which a gripper 48 is pivoted about a pivot axis S by a bearing block 49 coupled to the output gear of the toothed belt gear 30 in a horizontal plane. The gripper 48 is rotatably supported in the bearing block 49 by a pivot shaft 51 and can be rotated by 180 ° about its longitudinal axis by means of a pneumatic drive 52 , so that in this way depending on the desired direction of use for receiving the circuit board drill 25 in the drill magazine 22 the circuit board drill can either be transferred to the gripper 33 of the Y-slide 31 with the cutting part pointing upwards or, turned through 180 °, with the drill tip pointing downwards in the transfer position B (see also FIG. 5). For this purpose, the gripper 48 has a pair of gripper jaws 48 a, 48 b that can be actuated in the horizontal plane. In FIG. 4, the transfer device 12 is in a state after completion of ringing of the drill shank 25 a with the stop ring 40, that shortly before reaching the transfer position or in this (see. Fig. 5) is shown.

FIG. 5 illustrates the marked positions A (measuring station 10 ), B (transfer position), C (ring station 11 ) of the transfer device 12 in a schematic, perspective representation. From the measuring station 10 (position A), the circuit board drill 25 is pivoted horizontally about the vertical pivot axis S by the transfer device 12 after being released from the clamping receptacle 37 there and transferred to the ringing station 11 (position C), in which the circuit board drill 25 is gripped by the gripper device 44 the drilling ring device 39 is taken over. During the ringing process, the transfer device with the gripper 48 remains in this position.

After completion of the ringing process, the gripper 48 of the transfer device 12 again takes over the ringed circuit board drill 25 from the gripper device 44 and pivots it horizontally into the transfer position B, which is located between the measuring station 10 and the ringing station 11 . In this transfer position, the circuit board drill can be gripped by the gripper 33 of the XYZ handling device 14 and then, after vertical movement, moved in the direction of the X coordinate axis to a drill magazine 22 in the working plane 18 and the circuit board drill 25 can be inserted into the drill magazine (see FIG. 3 ).

In the event that ringed circuit board drills 25 already provided with stop rings 40 by the manufacturer are provided in the drill containers 20 , the ringing process and an associated pivoting of the circuit board drill can be omitted.

The diameter detection device 35 for determining or checking the diameter of the circuit board drill 25 (or milling cutter) is explained in detail below with reference to FIGS . 6 to 8.

Fig. 6, the diameter detecting device 35 displays the measuring station 10 in a schematic principle view and in a perspective view. The diameter detection device 35 is based on the principle of contactless determination or control of the respective drill diameter, the circuit board drill 25 with its drill shank being removed from the gripper 33 of the Y-slide 31 of the working arm 15 of the XYZ handling device 14 after the circuit board drill 25 has been removed from a drill container 20 in a clamping receptacle 37 is used, which is driven by a stepper motor 36 via a spindle 36 a to a vertical lifting or lowering movement.

A bearing block 36 b also serves the rotary mounting of the clamping receptacle 37 , which is driven in a lowered measuring position at a low rotational speed. In connection with the circuit board drill mounting arrangement thus created, a laser scanning micrometer 53 is arranged above it, such that the cutting part of the circuit board drill 25 is located in a horizontal laser beam 54 and is arranged within a measuring window 55 of the laser scanning micrometer 53 . The measuring window 55 has a U-shaped shape, so that after the completion of the diameter detection, a lateral removal of the circuit board drill 25 by the transfer device 12 , as explained above, is possible. At the same time, the configuration of the gripper 33 in relation to the measuring window 55 of the XYZ handling device 14 is such that the gripper 33 can reach through the measuring window 55 when the circuit board drill 25 is inserted into the clamping receptacle 37 .

A laser beam detector device in the form of a photodiode line 56 is located on a surface opposite the laser beam emission side. As illustrated in FIG. 7, the shading area d * is detected by the photodiode line 56 , which is caused by the rotatingly moving cutting part of the circuit board drill 25 located in the beam path of the laser beam 54 . The diameter of the circuit board drill 25 can be inferred from the signal of the photodiode line 56 representing the degree of shading.

However, it should be noted that for a number of PCB drills due to the cutting edge geometry, e.g. B. in single- or three-edged circuit board drills, contour milling cutters, etc., the effective diameter d can only be determined from the detector signal by taking into account the cutting-geometric characteristics of these tools. Therefore, in order to determine the type of drill during one or more revolutions of the circuit board drill 25, the number and the size of the maxima occurring in relation to the shading area are recorded and from this, by determining the drill or milling cutter type by means of type-dependent correction values from the shading size d *, the respective drill diameter d determined.

FIGS. 7 and 8 schematically show the determination of the type and the effective drill diameter d with the aid of the laser scanning micrometer 53 for a three-edged circuit board drill 25 ( FIG. 7) and for a double-edged drill ( FIG. 8).

As shown in FIGS. 7 and 8 illustrate, is z. B. in a double-edged circuit board drill 25 ( Fig. 8) the diameter d from the value of the maximum shading d * in the plane of the laser beam 54 directly detected by the photodiode line 56 , while in a three-edged drill (see Fig. 7) the detected Values d * is smaller than the actual diameter d. The recorded value d * must therefore be corrected according to the type of drill with a stored correction value in order to determine the effective drill diameter d. While there are only two maxima during a drill revolution in the double-edged drill according to FIG. 8 and this results in both the type determination and the correction factor 1 (d = d *), in the three-edged drill according to FIG. 7 there are several maxima for the shading area received d *. From this, the type of drill is deduced and the corresponding correction factor k is used for multiplication with a detected maximum of the shading size d * for determining the effective cutting diameter d (d = kxd *).

As already mentioned set forth magazining a Beringen requires the printed circuit board drill 25 generally of the drill shank 25 a thereof with the stop ring 40th The precise, captive attachment of the stop ring while determining the ring length L (distance between the cutting tip of the circuit board drill and stop ring 40 ) is therefore of particular importance for the quality of the circuit board drilling process in addition to the use of the drill with the correct diameter.

Through the drill magazine device 1 , a circuit board drill determined in terms of its diameter is subjected to a ringing process in the ringing station 11 following the diameter detection, the drill ringing device located in the ringing station being explained below with reference to FIGS . 9, 10 and 11.

The drill ring device 39 is shown in a schematic basic illustration in perspective in FIG. 9, with only the gripper 47 and also the ring conveyor 41 , in which the conveyor is shown, being shown with respect to the gripper device 44 and associated drive elements (see FIG. 1 (b)) Ring stock is located on stop rings 40 , which are occasionally guided into an assembly position shown in FIG. 9, is not shown.

As shown schematically in Fig. 9, the drill shaft is to clamp frame 25 is vertically movable a of the printed circuit board drill bit 25 by the gripper 47, in addition to its clamping operation by the gripper device 44 (see Fig. Fig. 1), the printed circuit board drill 25 with a given depressing force through the stop ring 40 resting in a mounting position on a ring holder 57 into a bore 58 of the ring holder 57 with vertical downward movement of the gripper 47 through the open gripper 48 of the transfer device 12 through to the stop ring 40 in a tight fit on the drill shaft 25 a a predetermined position, as is also shown schematically in FIG. 10. The ring receptacle 57 is supported by a load cell as a force sensor 59 in order to detect the ring force, that is to say the required push-through force, and in connection therewith detects the exceeding of an upper limit value or the undershoot of a lower limit value in order in each case to obtain an appropriate pressing Secure tightness of the stop ring 40 on the drill shaft 25 a.

While the drill shaft 25 a is being pushed through the stop ring 40 for fastening the stop ring 40 , the ring length L is continuously monitored without contact by a ring length measuring device 60 in order to stop the feed actuation for the gripper 47 when a predetermined ring length is reached and to precisely maintain the desired ring length dimension. The Beringlängenmeßeinrichtung 60 is arranged at right angles to the clamping plane of the gripper actuator 47, so that a laser beam 61 emitted from a laser beam source 62, extends in a direction perpendicular to the direction of the clamping actuation of the gripper 47 horizontal plane. Due to the configuration of the jaws 47 a, 47 b of the gripper, between which a substantially U-shaped limited window remains free in the clamping state, in which the cutting part of the circuit board drill is arranged, the laser beam 61 can be aligned so that it is with it central axis is in line with a longitudinal center axis of the gripper 47 and U-shaped, limited by the window between the gripper jaws 47 a and 47 b extending therethrough.

On the other side of the gripper 47 , a cylindrical lens 63 and a photodiode line 65 arranged in the direction of the gap of a slit diaphragm 64 are provided as a laser beam detector arrangement, as is also shown schematically in FIG. 11. In this way, the drilling length measuring device 60 forms a miniature laser module, which both enables a precise length measurement of the ring length L, but at the same time also takes into account different cutting geometries of the circuit board drills 25 or milling cutters, e.g. B. drills with flat or concave ground drill bit, in which a drill tip detection, z. B. on the circumference of the drill tip, and accordingly the detection of the drill tip alone in the longitudinal central axis of the circuit board drill 25 would be insufficient. The detection of the tip cutting geometry of the circuit board drill 25 , delimited by the slit diaphragm 64 and with the photodiode line 65 behind it, is achieved by spreading the laser beam 61 in the plane of the slit diaphragm 64 and the photodiode line 65 , as is particularly illustrated by the top view according to FIG. 11, so that peaks of the cutting geometry lying on the circumference can also be detected by the laser beam 61 or the photodiode line 65 . Therefore, the line of photodiodes 65 detects the by the stop ring 40 with its drill shank 25 a inserted printed circuit board drill 25 so that can be done independently of the tip geometry and the type of printed circuit board drill an extremely precise Bering length measurement, the cutting geometry.

FIGS. 10 and 11 show the drill Bering device 39, in particular the Beringlängenmeßeinrichtung 60 in side view and plan view, respectively in a schematic representation. To adjust the position of the ring length measuring device 60 with respect to the position of the drill shaft holder 57 or of the stop ring 40 resting on the top of the same over the receiving bore 58 in an assembly position, tuning rings 66 are provided, by means of which a position correlation of the ring length measuring device 60 with the drill shaft holder 57 is achieved can.

A further optimization with regard to the signal acquisition on the one hand and the energy utilization of the laser beam on the other hand can be done in a modification of the ring length measuring device - not shown here - in that instead of using laser optics (cylindrical lens 63 ) downstream of the circuit board drill 25 (between gripper 47 and photodiode array 65 ) such laser optics is arranged upstream of the circuit board drill 25 , ie between the laser beam source 62 and the gripper 47 . Through the use of optical links, such as. B. a cylindrical lens in this area, the laser light can be concentrated on the circuit board drill 25 and the laser light emitted by the laser beam source 62 can be focused in a focal line that preferably crosses the longitudinal center line of the circuit board drill 25 .

An exemplary embodiment of the magazine method is explained below with reference to FIG. 12 and a time diagram for the magazine of four circuit board drills according to FIG. 13.

Printed circuit board drills, used in drill magazines 22 , are used for drilling printed circuit board stacks in printed circuit board drilling machines in accordance with the drilling plan. It is therefore necessary to remove the printed circuit board drills 25 supplied by the manufacturer in drill containers 20 (drill boxes) sorted according to the assembly plan derived from a drilling plan and to insert them with the correct diameter into the correct position in the drill magazine 22 , generally those without a stop ring on their must be drill shank 25 is still supplied ringed a printed circuit board drill 25 before insertion into the drill magazine 22nd

The drill containers 20 are inserted into the slot-like shelf panels 17 of a shelf device 2 forming container storage portion 3 of the Bohrermagaziniereinrichtung 1 (step a in Fig. 12).

An XYZ spatial coordinate system is stamped on the drill storage part 3 in such a way that reference points are formed for individual, selected drills or positions above and below within the drill magazine device 1, which are stored in the memory device of the operating computer 7 . The positioning of the drill containers 20 with circuit board drills 25 , each of which has the same diameter within a drill container 20 , ie the diameter-oriented distribution of the drill containers 20 in the different levels of use of the drill storage part 3 is taken into account by entering the corresponding data in the operating computer 7 . A number of drill magazines 22 as well as a reuse magazine 24 and a drill disposal container 23 are located in the working level 18 . Of course, it is also possible to design several application levels as working levels, depending on the use of the drill magazine device 1 . In one embodiment, the drill storage part 3 of the drill magazine z. B. stock approx. 7000 PCB drills. The drill magazine device 1 can therefore accommodate all of the circuit board drills required for the circuit board lots to be processed at the same time. After creating the assembly plan from the drilling plan and inputting it into the operating computer for automatic control of the drill magazine, a control command from the control computer moves the working arm 15 of the XYZ handling device 14 and one of the grippers 33 to remove an intended circuit board drill 25 from the container 20 , step b in Fig. 12 (see also Fig. 2). The XYZ handling device 14 is then moved by a control command to its positioning servomotors with the aid of the X-slide 26 into the region of the working shaft 13 in which the corresponding gripper 33 is moved with the circuit board drill 25 into a reference position with predetermined spatial coordinates from this reference position to enable exact path control for the circuit board drill 25 or the associated grippers and gripper devices. After detection of the reference position and feedback to the control computer 7 of the working arm 15 with the gripper 33 and the vertically therethrough taken circuit board drill 25 in the work shaft, and upon reaching the corresponding coordinate values of the affected circuit board drill by moving the X-slide 26 in a position for insertion is 25 brought into the diameter detection device 35 of the measuring station 10 ( step c in Fig. 12). Here, the gripper jaws 34 reach through the measurement window 55 of the laser scan micrometer 53 therethrough, the chip receiver 37 of the measuring station 10 is raised, and after ingestion of the drill shank 25 a in the clamping receptacle 37 and opening of the gripper jaws 34 and retraction of the work arm 15 of the printed circuit board drill 25 is in hand over the measuring station for checking the diameter and the detection of the type (cutting edge geometry) of the circuit board drill 25 . Then, if the above-described process involves the first drill within a magazine cycle, the XYZ handling device 14 returns to the container supply part 3 and grips the next circuit board drill 25 from a drill container 20 in accordance with the assembly plan. In the event that it is not the first drill within a magazine cycle, a gripper 33 of the working arm 15 of the XYZ handling device 14 is moved into the position of a transfer position B of the transfer device 12 after transfer of the circuit board drill 25 to the measuring station 10 from this take up an already ringed circuit board drill 25 and convey it to one of the drill magazines 22 in the working plane 18 and insert it into it (steps g and h in FIG. 12; cf. also FIGS. 3 and 5).

Returning to the case that it is in the initially-described step of selecting and supplying a printed circuit board drill 25 in the measuring station to the first drill a Magazinierzyklus, the printed circuit board drill is this lowered 25 in the chip receiver 37 by the stepping motor 36 in its measurement position on the shooting , in which the cutting part of the circuit board drill 25 is located in the laser light beam of the diameter detection device 35 , as shown in FIG. 6, and is driven in rotation. After determining the effective diameter of the circuit board drill 25 in the diameter detection device 35 , the transfer device 12 is pivoted into the measuring station 10 , with its gripper jaws 48 a, 48 b the shaft 25 a of the circuit board drill 25 , which is again in its transfer position by the clamping receptacle 37 was raised to take. The clamping receptacle 37 of the diameter detection device 35 is then released and lowered again vertically in order to allow the horizontal pivoting of the gripper 48 of the transfer device 12 with the detected circuit board drill 25 (step d in FIG. 12).

While the XYZ handling device 14 is already feeding the next circuit board drill 25 to the measuring station 10 , the transfer device 12 transfers the circuit board drill 25 to the gripper 47 of the vertically movable gripper device 44 after swiveling out of the measuring station 10 via a transfer position B into the ringing station 11 the drill shaft 25 a of the circuit board 25 with a drill bit stop ring 40 to be provided (step e in Fig. 12). This is done by opening the gripper jaws 48 a, 48 b after gripping the drill shaft 25 a by the gripper device 44 and, in this position, allowing the gripper 47 to pass through with the printed circuit board drills 25 in the vertical direction.

The method for determining the effective cutting diameter of the circuit board drill 25 in the diameter detection device 35 provides that the cutting part of the circuit board drill, as shown in FIGS. 6 to 8, is rotated in the beam path of the laser beam and the maxima of the shading area d * from the detector signal of the photodiode array 56 detects, the type of PCB drill 25 used (number of cutting edges) is determined and, depending on this determination, a correction factor is taken into account in order to determine the actual cutting diameter d of the PCB drill 25 .

In the Bering station 11 with the drill Bering device 39 of the stop rings are by the shaker 41 to the isolated supply, housed 40 via a separation channel 42, the stop rings 40 successively in a mounting position, ie in a position above the bore 58 of the ring holder 57, as shown in Fig. 1 (b) and FIGS. 9 and 10 is shown. By the gripper 7 of the printed circuit board drill inherited is 25 a pushed through under the vertical downward movement of the gripper device 44 of the drill shank 25 by the aufzuziehenden in an interference fit, located in the mounting position of the stop ring 40 under the supervision of the depressing force (Bering force) by the force sensor 59 as well as the simultaneous detection of the cutting tip of the circuit board drill 25 by the laser beam 61 . When the predetermined ring length L (which corresponds to the desired drilling depth) is reached, the vertical drive 45 , 46 of the gripper device 44 is stopped, so that the ringing process is ended.

For the non-contact ring length measurement, which due to the different cutting tip configurations of the circuit board drills 25 (or milling cutters) used, it is not only possible to concentrate on monitoring a cutting tip area lying in the extension of the longitudinal central axis of the circuit board drill 25 , the use of laser optics (cylindrical lens 63 ) leads to the spreading of the Laser beam 61 in the detection plane, which is determined by the slit aperture 64 and the photodiode line 65 , so that peripheral cutting maxima at the cutting tip, z. B. in drills with a concave V-shaped cutting edge, reliably detected by the individual elements of the photodiode line 65 and a precise positioning of the stop rings 40 on the corresponding drill shaft 25 a can be achieved.

After completion of the ringing process, the gripper device 44 is moved upward again in order to transfer the now ringed circuit board drill 25 back to the gripper 48 in the ringing station 11 of the transfer device 12 , which then brings the circuit board drill 25 into a transfer position B for transfer to the gripper 33 of the XYZ handling device 14 (step f in FIG. 12, see also FIGS. 4 and 5). Depending on whether the ringed PCB drill is to be used 25 with its cutting part or to the drill shank 25 a forward continuously in the drill magazine 22, the printed circuit board drill 25 is transferred either in the same position as in the Bering station 11, ie with the cutting edge facing up, Transfer to the gripper 33 of the XYZ handling device 14 or turned by 180 ° before the transfer by the gripper 48 and then kept ready for transfer to the gripper 33 of the XYZ handling device 14 .

After transfer to the gripper 33 with appropriate actuating movements in the direction of the Z-axis, the X-slide 26 of the XYZ handling device in FIG. 1 (b) is moved to the right to move the working arm 15 with the grippers 33 and the one held by one Printed circuit board drill 25 is moved to one of the drill magazines 22 in the working plane 18 in order to insert the printed circuit board drill 25 at the corresponding location of the drill magazine 22 . In this way, the magazining process for the circuit board drill 25 is ended (steps g and h in FIG. 12).

As shown in FIG. 13, the next circuit board drill 25 has already been taken over by the transfer device 12 from the measuring station 10 and is transferred to the ringing station 11 .

After one or more drill magazines in this manner according to the drilling or assembly plan, of which, as shown in Fig. 1 (b), z. B. three pieces each with a capacity of 200 drills are located on a common pallet 21 , the pallet 21 can be removed from the working level 18 and removed to a circuit board drilling machine for inserting the drill magazines 22 (step 1 in FIG. 12) .

By the drill magazine device 1 , however, not only the above-described magazine process is carried out, by which it is ensured that the correct circuit board drill 25 with the correct diameter and the prescribed ring length reaches the correct location in the drill magazine 22 , so that it is also safe for circuit board drilling the right tools are used in the right place, but also enables the execution of additional tasks on an automated basis. Thus, the gripper 33 may be the XYZ manipulator 14, the printed circuit board drill 25 of the drill Magazine used again to the working level 18 of the Bohrermagaziniereinrichtung 1 after completion of the drilling of the printed circuit board drilling machine 22 again operate to automatically check the drill life, and thereby the full utilization of the service life of a printed circuit board drill to enable (step m in Fig. 12).

On the basis of the drill data programmed in the control unit regarding the service life, the number of possible regrinds etc., the XYZ handling device 14 can automatically remove the drills used from the drill magazine 22 (step h in FIG. 12) and either the corresponding circuit board drill into an adjacent drill disposal container 22 (step k in FIG. 12), in which the circuit board drills to be discarded are collected, or can transport the circuit board drills 25 into a reuse magazine 24 in the working plane (step i in FIG. 12), out of the circuit board drill for reuse and insertion in a drill magazine can later be removed again in the same way according to an assembly plan, as from a drill container 20 , without ringing being required. The circuit board drill in question can be transferred to a collecting container 20 in which circuit board drills 25 are collected which are intended for regrinding (step k in FIG. 12).

FIG. 13 shows the start of a regular magazine cycle for four circuit board drills. Here, the path of movement of the XYZ manipulator 14, in a solid line is referred to as in a dash-dotted representation of the respective path of movement of the first, second, third and fourth printed circuit board drill is specified within the Bohrermagaziniereinrichtung. 1 The actuation of the transfer device 12 is illustrated in a broken line.

By superimposing the individual drill handling operations between the drill storage part and the measuring or ringing station 10 , 11 , extremely efficient and precise drill magazine storage is possible.

In the event that z. B. a wrong-diameter drill has been inserted into a drill box 20 by the manufacturer and the diameter determination by the diameter detection device 35 thus results in an incorrect removal indicator, since the correct, provided drill cannot be stored, this drill is also temporarily stored at a reuse location in the reuse magazine 24 , to use this PCB drill later depending on a different assembly plan. Since it is important in relation to the correlation of the drill stock data in the operating computer 7 to the drill magazines 22 which, like the drill containers 20, are manually inserted into or removed from the drill magazine device 1 , the position of a particular magazine within the working level 18 of the drill magazine device is important 1 to be determined precisely, the drill magazines 22 , the magazine locations on the pallets 21 and the pallets 21 are preferably provided with a bar code which is detected by a corresponding bar code reader.

In the drill magazine device 1 , circuit board drills from different manufacturers with different cutting edge geometries and different numbers of cutting edges can be handled, measured, ringed and stored. At the same time, important drill data are saved in connection with the automatic loading of the drill magazines.

The drill magazine device leads to considerable Committee minimization, both from economic as also from an environmental perspective with regard to printed circuit boards (Hazardous waste) is of great importance. A Drill magazine device of the type described here therefore a particularly important element in connection with the Provision of properly magazine drilled magazines for  one or a plurality of working in parallel PCB drilling machines and leads to an essential one Reduction of manual handling that was previously related on the drill magazine and ringing in connection with drilling circuit boards was required.

Claims (39)

1. Method for magazining circuit board drills in drill magazines for use in circuit board drilling machines, characterized by the process steps:

• - inserting drill containers ( 20 ) with circuit board drills ( 25 ) arranged individually in them into a drill magazine device ( 1 ) with assignment of spatial coordinates and drill data,
• - Removing the circuit board drill ( 25 ) by a three-axis movable, computer-controlled XYZ handling device and transferring each circuit board drill ( 25 ) to a measuring station ( 10 ) with a diameter detection device ( 35 ) for determining the respective effective drill diameter (d) and
• - Insert the circuit board drill ( 25 ) in drill magazines ( 22 ).

2. The method according to claim 1, characterized in that the circuit board drill ( 25 ) from the measuring station ( 10 ) in a ring station ( 11 ) with a drill ring device ( 39 ) and transferred with a stop ring ( 40 ) while detecting a ring length (L) and a ringing force. 3. The method according to claim 1 or 2, characterized in that drill data including the spatial coordinates of the stationary recorded in the drill magazine circuit board drill ( 25 ) and drill-related operation data, such as. B. wear data, stored in a memory of an operating computer ( 7 ) and constantly updated. 4. The method according to at least one of the preceding claims 1 to 3, characterized in that after removal of a circuit board drill ( 25 ) from a drill container ( 20 ) and before transfer to the measuring station ( 10 ), a reference position of the XYZ handling device ( 14 ) is detected . 5. The method according to claim 4, characterized in that after transfer of the circuit board drill ( 25 ) to the diameter detection device ( 35 ) of the measuring station ( 10 ), the XYZ handling device ( 14 ) a circuit board drill ( 25 ) in a transfer position (B) from one between Measuring and ringing station ( 10 , 11 ) pivotally arranged transfer device ( 12 ) takes over and transferred into a drill magazine ( 22 ) in the drill storage part ( 3 ). 6. The method according to at least one of the preceding claims 1 to 5, characterized in that the XYZ handling device ( 14 ) and the transfer device ( 12 ) work simultaneously and a plurality of PCB drills ( 25 ) at a given time in different phases of one Magazine process. 7. The method according to at least one of the preceding claims 1 to 6, characterized in that the circuit board drill ( 25 ) in the diameter detection device ( 35 ) of the measuring station ( 10 ) are subjected to a laser scan diameter detection in the cutting area with rotation of the circuit board drill ( 25 ) and from the detection of a laser beam shading area (d *) of a detector field ( 56 ) of the diameter detection device ( 35 ) determines the drill type and the effective drill diameter (d) of each circuit board drill ( 25 ) is determined using a correction factor that takes the drill type into account. 8. The method according to at least one of the preceding claims 1 to 7, characterized in that the ring length measurement of the circuit board drill ( 25 ) in the ring device ( 39 ) of the ring station ( 11 ) by means of a laser drill tip detection and in connection with a predetermined position correlation between one Laser beam detector field ( 65 ) and a mounting position of a stop ring ( 40 ), the circuit board drills ( 25 ) with their drill shank ( 25 a) are inserted in advance in the respective stop ring ( 40 ) in the respective mounting position until the detector signal is detected Laser beam detector field ( 65 ) indicates reaching a desired position of the drill tip of the respective circuit board drill ( 25 ). 9. The method according to at least one of the preceding claims 1 to 8, characterized in that the circuit board drill ( 25 ) through the transfer device ( 12 ) in the transfer position between the measuring and Bering station ( 13 ) into which the XYZ handling device ( 14 ) is movable, pivoted and, depending on a magazine position, the circuit board drill ( 25 ) in the transfer position (B) can be turned through 180 °. 10. Device for magazining circuit board drills in drill magazines for use in circuit board drilling machines, in particular for carrying out the method according to claim 1, characterized in that a computer-controlled drill magazine device ( 1 ) is provided with a drill storage part ( 3 ) for receiving at least drill containers ( 20 ) with arranged therein, separated PCB drills (25) as well as drill magazines (22), with at least one diameter sensing device (35) in a measuring station (10) for the printed circuit board drill (25) and with a computer controlled XYZ manipulator (14) for conveying the printed circuit board drill ( 25 ). 11. The device according to claim 10, characterized in that a drill ring device ( 39 ) in a ring station ( 11 ) is provided adjacent to the diameter detection device ( 35 ) in the measuring station ( 10 ) and between these a pivotable transfer device ( 12 ) is arranged. 12. The device according to claim 10 or 11, characterized in that an operating and a control computer ( 7 , 8 ) for operating the drill magazine device ( 1 ) are provided. 13. The device according to at least one of the preceding claims 10 to 12, characterized in that the operating computer ( 7 ) has a memory device in which the data of a drill assembly plan derived from a drill plan, drill data including the spatial coordinates of the circuit board drills received stationary in the drill magazine device ( 25 ), as well as drill-related operation data, such as. B. wear data, grinding cycles etc. are stored. 14. Device according to at least one of the preceding claims 10 to 13, characterized in that the drill magazine device ( 1 ) forms an integral cabinet unit. 15. Device according to at least one of the preceding claims 10 to 14, characterized in that the drill storage part ( 3 ) in a side-by-side arrangement to a control and control computer ( 7 , 8 ) containing control part ( 6 ) and the vertical with respect to the control part ( 6 ) arranged measuring station ( 10 ) is provided. 16. The device according to claim 15, characterized in that the measuring and ringing station ( 10 , 11 ) with the operationally connecting transfer device ( 12 ) are arranged side by side and below the control part ( 6 ) of the drill magazine device ( 1 ). 17. Device according to at least one of the preceding claims 10 to 16, characterized in that between the drill storage part ( 3 ) on the one hand and the control part ( 6 ) with the measuring and ringing station ( 10 , 11 ) and transfer device ( 12 ) arranged below it leave a vertical working shaft ( 13 ) and a working arm ( 15 ) of the XYZ handling device ( 14 ) can be moved vertically therein. 18. Device according to at least one of the preceding claims 10 to 17, characterized in that the drill storage part ( 3 ) has a plurality of parallel, vertically successively arranged insert planes, and the drill storage part ( 3 ) in conjunction with the XYZ handling device ( 14 ) through the control computer ( 8 ) detectable spatial coordinate system is impressed. 19. The device according to claim 18, characterized in that the insert planes form a shelf device ( 2 ) for receiving at least drill containers ( 20 ) with the circuit board drills ( 25 ) and drill magazines ( 22 ) for receiving magazine-printed circuit board drills ( 25 ). 20. Device according to claim 18 or 19, characterized in that at least one of the application planes forms a working plane ( 18 ) and the drill magazines ( 22 ) are arranged in the working plane ( 18 ). 21. The device according to claim 20, characterized in that the working plane ( 18 ) is arranged substantially horizontally to the measuring station ( 10 ). 22. Device according to at least one of the preceding claims 18 to 21, characterized in that in the upper region of the drill storage part ( 3 ) laterally opposite to the control unit ( 6 ) a plurality of insert planes for receiving drill containers ( 20 ) are provided. 23. Device according to at least one of the preceding claims 20 to 22, characterized in that in the working level ( 18 ) drill magazines ( 22 ) and at least one reuse magazine ( 24 ) and / or a drill disposal container ( 23 ) are arranged. 24. Device according to at least one of the preceding claims 10 to 23, characterized in that the drill magazines are arranged (22) on pallet magazine (21), which are useful as inserts in the working plane (18). 25. Device according to at least one of the preceding claims 18 to 24, characterized in that the insert planes are formed by one side of a side wall of the cabinet unit of the drill magazine device ( 1 ) projecting shelf panels ( 17 ) and the shelf panels ( 17 ) on their top a plurality of Have guide rails ( 19 ). 26. Device according to at least one of the preceding claims 10 to 25, characterized in that the XYZ handling device ( 14 ) is movable at least along the back of the drill storage part ( 1 ) by an X-slide ( 26 ). 27. The device according to claim 26, characterized in that the XYZ handling device ( 14 ) has a vertical rail ( 27 ) connected to the X-slide ( 26 ), on which a Z-slide ( 29 ) is movably mounted, which in turn supports the has working arm ( 15 ) projecting essentially horizontally in the direction of the front of the cabinet unit, and the working arm in turn movably supports a Y-slide ( 31 ) with a gripper device ( 32 ). 28. The device according to claim 27, characterized in that the gripper device ( 32 ) consists of a pair of grippers ( 33 ) spaced in the Y direction and each gripper ( 33 ) has a pair of oppositely movable gripper jaws ( 34 ). 29. The device according to claim 28, characterized in that the grippers ( 33 ) have a U-profile shape in the tensioned or closed state substantially. 30. Device according to claim 28 or 29, characterized in that the gripper jaws ( 34 ) have inwardly projecting clamping sections ( 34 a, 34 b) and the clamping sections ( 34 a, 34 b) of the gripper jaws ( 34 ) of a gripper ( 33 ) have different clamping geometry. 31. The device according to claim 30, characterized in that the clamping section ( 34 a) of a gripper jaw ( 34 ) of a gripper ( 33 ) has a conical clamping free cut with converging clamping surfaces ( 34 c) and the clamping surfaces ( 34 c) below run at an angle (α) of approx. 9 ° to each other. 32. Apparatus according to claim 31, characterized in that the clamping portion (34 b) of the other gripper jaw (34) of the gripper (33) has a centering cut-out with an angle (β) of approximately 150 ° with respect to one another extending centering surfaces (34 d) has. 33. Device according to at least one of the preceding claims 10 to 32, characterized in that the diameter detection device ( 35 ) in the measuring station ( 10 ), arranged adjacent to the working shaft ( 13 ), a vertically movable and vertically rotatable clamping receptacle ( 37 ) by a stepper motor. for the shaft ( 25 a) of the circuit board drill ( 25 ) and a horizontal laser scan micrometer ( 53 ) and a measuring window ( 55 ) of the laser scan micrometer ( 53 ) the passage of the gripper ( 33 ) of the XYZ handling device ( 14 ) in vertical direction allowed. 34. Device according to at least one of the preceding claims 10 to 33, characterized in that the transfer device ( 12 ) by a toothed belt gear ( 30 ) in a horizontal plane by about 100 ° between the measuring and ringing station ( 10 , 11 ) is pivotable and a gripper ( 48 ) which can be actuated in the horizontal plane can be pivoted about its longitudinal axis by 180 ° by means of a pneumatic drive. 35. Device according to claim 34, characterized in that the gripper ( 48 ) of the transfer device ( 12 ) cyclically between the measuring station ( 10 ), the ringing station ( 11 ) and the transfer position ( 13 ) for transferring a circuit board drill ( 25 ) to the gripper device ( 32 ) of the XYZ handling device ( 14 ) can be pivoted. 36. Device according to at least one of the preceding claims 10 to 35, characterized in that the drill ring device ( 39 ) in the ring station ( 11 ) has a ring receptacle ( 57 ) with a bore ( 58 ), on the top of which a mounting position for a stop ring ( 40 ), a ring conveyor ( 41 ) for the stop rings ( 40 ) is provided, which is connected to the ring receptacle ( 57 ) via a separating channel ( 42 ) opening into the assembly position, and that a vertically movable gripper device ( 44 ) and a ring length measuring device ( 60 ) is arranged perpendicular to the gripper device ( 44 ). 37. A device according to claim 36, characterized in that the Beringlängenmeßeinrichtung (60) arranged on the one hand of a gripper (47) laser beam source (62) and an other part of the gripper (47) arranged laser optics (63) in conjunction with a slit diaphragm (64) and has a laser beam detector field ( 65 ). 38. A device according to claim 37, characterized in that the laser optical system, a cylindrical lens (63) and the laser-detector array (65) extending in the direction of the slit aperture (64) row of photodiodes (65). 39. Device according to at least one of the preceding claims 36 to 38, characterized in that the ring receptacle ( 57 ) is supported on the bottom side by a ring force measuring device ( 59 ).