DE8109369U1 - COMPUTER-CONTROLLED DRAWING DEVICE - Google Patents

Description

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STELLRECtfT '& PARTNER

PÄfgNFÄNWELfE

f4 c '6 7000 STUffüAfiT

A 44 420 in the applicant BZ Plähkerihör-n KÖ k = 176 Mühl ^ asse 22

2nd March! 1981 7208 äpäiöhihgen

Computer controlled drawing device

The invention relates to a computer-controlled drawing device with X-Y drawing facilities.

Such computer-controlled drawing devices are in shape known from so-called plotters, as they are, for example, in the magazine "Draw", 18 * Jg,> 1980, No. 4, pages 150-153 are described. Acts in detail it is electronically controlled, äüflegbären Drawing potters, in particular, are intended beforehand For example, to label drawings made on a drawing machine, if necessary to measure them and by drawing in standard parts, repetitive parts, etc. for which special programs are stored, to complete.

The disadvantage of such plotters is that they only have a relatively limited drawing area (current format about DIN A3) and that yours during processing a larger drawing format required multiple positioning in a defined position with respect to the prepared drawing is relatively time-consuming and difficult, and there is a significant risk of errors brings with it. It is also disadvantageous that either the plotter to the drawing station, in particular to a -

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A 44 420 aiii - 176 - 4
2T * March 1981

Drawing machine must be transported * if the preparatory Work is complete / or that the prepared drawing for the workplace for the plotter " must be transported and fixed there again *

There are also already digitally displaying drawing machines known in which a digital Ko- | ördinatenrechner And also a digital angle display is obtained on the drawing head * The digital X- and Ϋ- ι Coordinates are displayed - based on the axis of rotation of the drawing head taking into account the zero point of the drawing rulers * The advantage of such digital displaying drawing machines consists in the fact that when appropriate control commands are entered for this purpose provided keyboard also displays the distances between points and a common zero

larkoordinaten besides the X ^ and Y-distances also the Angles and radii can be determined or displayed.

These possibilities facilitate in particular in connection _R

with the possibility of certain drawing scales select the work of the designer, in terms of the accuracy with which the drawings are created and with regard to the avoidance of calculation errors. On the other hand, the signing activity changes of the designer when working with a digitally displaying drawing machine so far nothing Essentials than the individual lines of the drawing must be drawn on the drawing lines in the usual way with the drawing head fixed and there the aiizeige of the drawing machine for numerous

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30 03

Ä 44 420 m

k "176

March 27, 1981

Drawing work / like drawing in circles or däö Drawing in curved lines with the help of curve rulers / offers little additional help.

Based on the state of the art and that shown above Problem is the task of the invention based on / to specify an improved / computer-controlled drawing device / which is based on a conventional one Carriage drawing machine a direct storage of the digitized data with the help of the drawing machine created or on this scanned drawing allows.

This object is achieved in a computer-controlled drawing device of the type described in the introduction according to the invention solved by / that there is a carriage drawing machine with one with the drawing head carrier of the same directly connected pen / pen carrier has / that position detection devices for capturing the respective X-Y coordinates of the drawing head carrier opposite the drawing surface are provided that storage devices are provided which are associated with the position detection devices are connected, and that control devices are provided by the movements brought about by hand of the pen / pen holder opposite the drawing surface can be digitally recorded in the form of the X-Y coordinates passed through and through which the writing / Reading pen carrier as a function of stored digital X-Y coordinate data and / or input via a keyboard is free to move relative to the drawing surface.

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Ä 44 420 in

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ti. Maifz 1981

The decisive advantage of the reöhneiiges-beüeif-ben drawing device according to the invention is that when creating a new drawing, the exact position of the writing or drawing pen itself can be recorded exactly and stored in digital form at any moment, while with the can be digitally mentioned initially anzei- ¹ genderi drawing machines basically lediglidh the position of the mark auxiliary means (rulers and rotatable head mark) is displayed without the movement would be stored for later reconstruction of the drawing of this character auxiliary equipment. In this way, the possibility is opened up while drawing, by keying in appropriate marking signals, to mark the places where the drawing must later be supplemented by labeling symbols, special curves or certain drawing elements whose data are stored. The loss of the auxiliary drawing facilities, in particular the rulers, does not cause any problems with the precise creation of the drawings, since, depending on the stored or keyed in data, a type of electronic link guide for the drawing pen can be achieved, which makes it possible to dispense with auxiliary drawing facilities.

Such an electronic link guide is in advantageous embodiment of the invention achieved that in a conventional drawing machine intended weight compensation through assigned drive devices, like stepper motors and the like, depending on the stored; or keyed in Data is automatically operated so that

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A 44 420 m

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March 27, 1981

a defined one for the pen / pen holder Curve path or line results in / along which this can be moved and which when the control devices are activated could only be left by force.

On the other hand, with a drawing device according to the invention there is also the possibility of a free one Draw like you would on a conventional drawing machine, if you use the controls in this way sets that the drive motors work as servomotors and a movement initiated by the draftsman of the Support character head carrier, being in development According to the invention, there is also the possibility of releasably attaching the pen / pen carrier to the character head carrier in this way attach it for the production of drawings in a conventional manner through the usual drawing head-ruler arrangement can be replaced.

A particular advantage of the drawing device according to the invention is, in an embodiment of the invention, that the coordinate data stored during the creation of the drawing, including the keyed-in data on the symbols, partial constructions, etc. to be drawn at certain coordinates, provides excellent preparation for a subsequent use of a plotter / which in this case is designed in such a way that at least one arm of the plotter guide * is mounted on an additional carriage of the carriage drawing machine , so that the positioning of the plotter does not present any difficulties and there is also the possibility of * / depending on the "circumstances"

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units to work alternately with the drawing machine designed according to the invention and with the plotter.

More details and. Advantages of the invention are explained in more detail below with reference to drawings and / or are the subject of subclaims. Show it:

1 shows a schematic perspective illustration of a first preferred embodiment of a Drawing device according to the invention and

Fig. 2 is a schematic perspective illustration of an embodiment of the invention a plotter supplemented drawing device according to FIG. 1.

1 shows a work station with a drawing device according to the invention / with a carriage drawing machine 10 modified according to the invention and a computer 12 / for example a microcomputer with floppy disk drives being provided as the basic elements of the drawing device. In addition, a keyboard 14 which can be moved in the horizontal direction or in the X direction is provided on the drawing machine and is connected to the drawing machine 10 and to the computer 12 via corresponding lines (not shown). Furthermore, a work table 16 is provided at right angles to the drawing machine 10, on which there are peripheral devices connected to the computer 12, namely a pivotable data monitor 18 and a printer / typewriter device 20.

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March 27, 1981

Purely externally, what is noticeable about the drawing machine 10 is that the one that can be moved in the X direction is in its extreme left position shown guide 22 with the Sign head carrier'24 not with the usual sign auxiliary equipment, i.e. is provided with a rotatable drawing head and rulers attached to it, but according to the invention with a read / write pen carrier 26, which in principle as a simple holder for a writing or drawing pen and a reading pen can be formed, but in the exemplary embodiment According to a preferred embodiment of the invention as a turret head with several - in Fig. 1 three - pins is designed and is therefore referred to below as SMftrevolver 26 for the sake of simplicity. In the end is located, at the upper end of the guide 22 is the housing 28, which is part of the X-Y ~ guide and the required servo electronics with at least one positioning motor and equipment for wine measurement contains.

In the work station shown in FIG. 1, there is then, when the pen turret 26 against a normal drawing head replaces with rulers, first of all the possibility to draw "quite normally", whereby it is for the work of the draftsman is of no particular interest that the carriage drawing machine 10 of the invention The drawing device no longer works with the conventional counterbalance / instead it works electronically Has weight and friction compensation devices, namely in the housing 28 ,, which also have a easy mobility of the Mesi characters,

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and also when the drawing board 30 is set up - this corresponds the situation shown in Fig. 1 - ensure that the character head remains in a position in the it was moved by hand. On the other hand, the computer 12 and the data monitor 18 also open with this normal Drawing operation the possibility of displaying <?. er X coordinates, which has already been implemented in newer drawing machines, the Y coordinates and, if applicable, the angular position of the drawing head.

I If instead of the normal! Seichen facilities with

I connected to the drawing head carrier 24 of the pen turret 26

I den, then, however, according to the invention is different

I than with the previously common drawing devices on the

■ sis of carriage drawing machines the possibility of

I- by moving the pin turret 26 compared to the

] Drawing board 30 directly to the one in the drawing

I position pen 27 to draw.

ι Furthermore, it is now possible to use the

I machine 10 and your computer 12 existing wiring

1 bindings an immediate storage of the coordinates

t data for the one drawn with the pen 27

l · line made. Be this way first of all

! the data will be collected later at an automatic

! Control of the pen 27 by the computer 12

an exact reconstruction of an earlier one

i Allow drawing / where necessary Supplements and corrections can be taken into account. In this "free drawing" with the je-L Weil's selected ones carried by the pen revolver 26

1 . Show if-fc 27 ariseitetsiderverfindurvgsgemän κ provided

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elektifönisöhe dewichtsäüsgleieh äö t that the movements of the pen turret initiated by the draftsman are supported by the servo electronics / so that the pen revoiveii can be moved just like the drawing head of a normal drawing machine *

There is also a further embodiment of the invention the possibility / when drawing with the pen to follow a fixed line * With this one The data for the relevant line / for example in the form of the coordinates of the end points are used a straight line or in the form of data about the center and radius of a circle to be drawn, previously keyed in on the keyboard 14, with the possibility exists / also to call up assigned subroutines from the computer 12 via the inputs on the keyboard. On the basis of the data given in this way, the servo electronics devices are then controlled in such a way that that practically an electronic link guide results for the movement of the pin turret 26, which forces the drawing of a specific, fixed line.

During the movement of the pin turret 26 along the ■■ predetermined by the electronic Kuiissenführung. On the line, the draftsman then has the opportunity to enter additional data into the computer 12 via the keyboard 14 when certain points on the line are reached given partial figures

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A 44 420 m

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27, Mali »1Ö81

Points for the attachment of ⁴ ön Beärbeitüngöaeiöhen üäw "can affect "

A particular advantage of the drawing device according to the invention is furthermore / that it can also work in the "copier mode" · In this case, a prepared drawing is stretched on the drawing board 30 - the individual lines of which are then scanned with a reading pen carried by the pen turret, whereby this " reading pen ", which can for example be a simple, non-writing steel pin with a rounded tip, is guided along the interest Zeichnüiigslinien to their Köordinatendaten in memory ¹ ^ part of the computer 12 to take over _t where tremors or üngenauigkeiten in Linienabtästünf with free, manually operated pen turret 26 can be corrected by appropriate electronic correction circuits of the computer, but also the possibility of equipping the pen turret with the scanning devices known, for example, from fabric cutting machines, so that the drawing can be scanned can be done more or less fully automatically.

The particular advantage of the drawing device according to the invention when Create a drawing of space information Being able to enter given coordinate points comes into play when the drawing device 1 is supplemented by a plotter, as shown in FIG.

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In detail, Fig * 2 plays a! Drawing machine 1.0 / bei the aiii right edge of the drawing board a plotter 32 is provided / the one with an additional carriage the drawing machine 10 is connected and its guide 34 can be moved in the X ^ direction of the drawing board 30. By! Supplementing the drawing device with the plotter 32 it is now possible / after the creation of a drawing with the drawing pens 27 and after the input the additional data via the keyboard 14 the final Completion of the drawing with the help of the plot- ^ ters 32 to make its positioning due to its connection with the running rail of the drawing board No more problems with it and now the addition of the drawing due to the small amount Inertia of his pen holder 36 draws at the high speed typical of plotters can make »40 different pens are kept ready for the plotter in a pen magazine. Additional work facilitation results in the workplace according to FIG. 2 also by the fact that specifically for the input of the plotter data also the printer / Typewriter arrangement 20 is available, on which, for example, complete parts lists can be written to supplement drawings and a corresponding one Enable control of the plotter 32. In addition, at the work station according to FIG. 2 there is another Data input unit also high a so-called Graphics-ι Tray 21 available.

Finally it should be noted that the Read / write pen carrier 26 for the "copy mode"

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Instead of deö Read st if-be s ödeii z: Usual to dieäem may have a measuring hatch or a crosshair, soft making it easier to trace the lines to be scanned and enables a more precise sampling of the same *

Overall, the workplace shown in Fig * 2 is with a drawing device according to the Eirfindüng extraordinarily versatile and enables the following applications:

1 * electronic display of the coordinates on the screen of the data monitor.

2. Working with an electronic ruler (distances and lengths are programmable).

3. Additional true-to-scale displays or conversions in other units of measurement.

4. Revise existing drawings (scale adoption) *

5. Working with the graphics tablet (drawings or Symbols can be captured, digitized and saved up to the full size of the work surface)

6. Curve analysis.

Since the railway guide for de: ri. Pen holder. 26 also allows complicated shapes, depending on the computer program, this can be done manually along the released Lines, for example for drawing circular paths, symbols, signs and mathematical functions

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be turned. This eliminates the need to use compasses, templates and curve rulers etc. Furthermore, curves can be approximated by approaching the most important points with the help of the computer calculated and then drawn. Finally, the drawing device according to the invention can also be used for drawing Dashed or dash-dotted lines are used, the read / write pen carrier to this Purpose equipped with a controllable pin attachment mechanism is, which can be controlled via the computer, which can also be achieved, for example, that when drawing broken lines, not straight gaps of the same on the intersection points with other lines fall.

Claims (4)

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• · HOEGER, STELLR'fecfrT'a PARTNER PATENTANWÄLTE UHLANPSTPASSE 14 c'P 7000 STUTTGART 1 A 44 420 xn Applicant: BZ Plankenhorn KG k - 176 Mühlgasse 22 March 27, 1981 7208 Spaichingen Ά- claims Computer-controlled drawing device with XY-Zeicheneinrichtxingen, characterized in that it has a carriage drawing machine (10) with a pen holder (26) directly connected to the drawing head holder (24) XY coordinates of the character head carrier (24) are provided, that storage devices (computer 12) are provided which are connected to the position detection devices ^ and that control devices (computer 12, keyboard 14) are provided through the manually induced movements of the pen / read pen -Carrier (26) opposite the drawing surface (drawing board 30) can be digitally recorded in the form of the XY coordinates passed through and through which the Sshreib / reading pen carrier (26) depending on stored and / or a keyboard (14) entered digital XY Coordinate data from relative movements with respect to the drawing surface i drawing board 30) can be released. -2- , '·. . «. UIj ii
«J« '). <j "i f P- 1 mm • a · "S rr .. A 44 420 m k - 176 March 27, 1981 - 2nd 2. Drawing device according to claim 1, characterized in that a servo electronics with devices for distance measurement and at least one positioning motor for the read / write pen carrier (26) for bringing about an electronic weight compensation
is provided. 3. Drawing device according to claim 1 or 2, characterized in that the servo electronics can be controlled in this way is that is responsible for the movements of the pen wearer . (26) results in an electronic link guide. 4. Drawing device according to one of claims 1 to 3, characterized characterized in that programming devices (keyboard 14) for specifying at least one starting point for a plotter (32) combined with the drawing machine (10) to form a structural unit are provided. . ' ¹ Il '..'