DE1816887A1 - Method and device for generating and using a program for machine tool control - Google Patents

Description

Applicant, ■ Stmttgar-tj 23 ο December 1968 Horfas Limited P

V / illow Lan ©

Rlitcham ₈

England

Method and device for production "Use of a program for tool machine control

The invention "looks at aiaf the production τοη tax" Programs for such machine tools that are used for a Control by programs with continuous path set up, and in particular on the generation of a Program with a continuous way to control the Relative movement of a tool and a workpiece in a machine tool on a recording medium ?. such as a magnetic bando The V / Erkseugmasshine

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909831/1193

BATH

and the program should execute various Construction operations, such as milling or contouring of a workpiece «or parts of the workpiece allow drilling in predetermined places ».

Bb have been sent "forsehl & ge für den Aufb"%! Of program-controlled tool shafts that open the base sohrittw # ii # f control work, however, is for the control of a continuous way »the Making the required. Programs often a complicated and costly operation because of a Reohner is required for the generation of the prograama « This difficulty can be circumvented by adding digital or coordinated information on the carrier must be recorded, but must be used to control a continuous path on the machine tool A Reohner can be provided in order to convert the recorded information into a form that can be used for control suitable for the machine tool "

For example, if a Reohner is used, can the program be recorded on a magnetic tape for a continuous path and from AC? Signals or derived from such signals pulses be "tehen _t by the run of the workpiece or the IUN) (S Tool the coordinate movements are recorded by Weohselstromsignale or pulse · whose frequency compared to a reference" ·· frequency representing the coordinate movements that aindo

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909831/1190

Accordingly, a portion dee program in which the signal bsi the reference frequency is recorded, no movement ^ while a portion darstelltο an up "drawing at a frequency above or below the reference frequency comprises f is a motion in one or in the other sense, it is apparent _t that a recorded in this manner, the program can easily be used for actuation of the machine tool in directions along represents "and the X-axis and therefore allows ■ dt e outline of a workpiece accurately in accordance to edit the recorded information in the program or specified Ask dee workpiece bores run "in the program normal" must as an additional channel to be recorded, which tracks the movements of a cutting tool in the uiia from the Schneiäst RECOVERY _t which .in the movement of the S-axis represents v / IRDCs in some cases, other signals that represent other coordinates * are also recorded

So far, such programs have been for continuous V / ege created by the fact that the designer creates a map had to provide the information about the reference points of the and the details of this card were then entered into a computer which was programmed to provide the information evaluated and a record on a Magnetic tape produced »the required characteristics and various traces of change« »

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BAD OBiGlNAL

Current signals and pulses derived from them _? whose frequency varied according to the movements on the coordinates? which were given to the workpiece in relation to a metal cutting tool _? if such a workpiece to be processed in the manner described above was ₀ Such programs are as ^{below; l} Progr £ \ mme the way "mentioned beaeichneto There are machine tools of various kinds aur Ver ~ füguag where such programs are useful and that Run allow machining operations on workpieces under the control of magnetic tapes or other recording media for programs of the type mentioned ₀

It can be seen that the creation of programs this requires considerable skill and experience, and programs in general do not can be generated under the supervision of the designer, because the use of a calculator is required? Significant care and skill required in the manufacture of the cards intended for Feeding the calculator is needed, and it is reflected, spring failure in making & <j, r cards in the piece made from the recorded programs o All these considerations demonstrate? that every recorded program a comparatively expensive instrument isto

The present invention is directed _t a novel process for the production of programs of

9 0 9 8 31/119 β

ORIGINAL

to create the type mentioned, which is suitable for use in machine tools "by a program with a continuous path" that is stored, for example, on a magnetic tape _? , can be controlled * Accordingly, programs that have been generated according to the invention can be used in any "machine tool" which is designed for operation on the basis of a continuous path under the control of a program of the type mentioned

The present invention is further based on the object of making it possible to produce such programs without the need to use a computer either when producing the programs or when controlling the machine tool using such programs Easily applicable system for the production of programs for the control of machine tools and can be used both for controlling existing types of belt-controlled machine tools and for controlling machine tools specially designed for the purpose of operating with programs _? manufactured according to the invention ₀

Many proposals have been made on the control of machine tools and the like production equipments by those devices which as a result «or scanning devices in the

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'90883 17

8AD ORIG) NAt

broadest ö: uina bosaiehnet- This expression includes lines following devices for reproduction ä®j? Outline of a drawing _; As for example in British patents Λ 096 0i8 and 1 141 76? Similar devices for following the information on a template or a model have also already been proposed, and a large number of different devices are known in which a tactile touch, the like, of the periphery or contour of an object to be reproduced The present invention is based on the use of the movements of such types of sequences or scanning directions to generate alternating current signals or pulses which are recorded directly on a recording medium in a file : V 'the control of its Werkaeugma "= machine or other similar device tolerates, which can be stexiai'bar ieti by a program of the type mentioned v; r; it becomes possible _? A program suitable for the control of a machine tool by direct scanning or examination of a profile or a Generate drawing without the use of a calculator at any stage e *

In the broadest sense, the invention is therefore to cause a follow-up device _¥ progressively run along the representation of a hersustellenden object by ER of the follow-up device and the representation dea Sagensfcandsa sine relative movement

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9098 = 31 / 1198-

_{ßAD 0RJGlNAL}

allocates istf and Y / echelstrom signals öerQji frequency of the speed of such Relative movement is dependent and these signals aufzuiehneno on a recording medium

The present invention further includes a method of controlling a machine tool; wherein a workpiece and a cutting "= odor mold a relative movement with the aid of a program is issued been generated as stated above ;, the, and preferably for the Operationssteüerung a continuous path such relative motion set up in at least two coordinate axes is ₀ The program can with a further control for a movement can be provided which represents the displacement of the cutting tool into or out of the working position or, for example, controls drilling operations

it

Bsi Anwehdung the present invention, the various lines or profiles following ago · = find directions using, where an S "| _t statift a photosensitive arrangement or the like follower is made? to wander around an outline or a profile »which bswa represents the workpiece to be produced, and with de :? the Tastetift or the photosensitive arrangement the required movements with the aid of the coordinate system be einos © _f rteiit the drive motors for at least two different coordinates comprises bsi which there act the coordinates, for example, the X and Y-Bewegunga ° kanne

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SAD OfHOlNAL

In this case, the "displacement caused by such drive motors" is used To change the frequency of a reference signal and a To create a signal with a frequency deviating from the reference frequency, which corresponds to the meaning of the Coordinate movement above or below the reference frequency ο The signals or pulses derived from it with the resulting frequency are recorded on a recording medium, for example a magnetic tape, recorded, which also sets the reference frequency to » draws and can record further signals, such as the movement of a cutting tool display «in order to move the tool into the vein from the cutting position during the machining operation bring = »

The invention can be applied in various ways depending on the type of follow-up device used In a device of this type, a radially slotted disc can be driven by a motor of constant speed and arranged in extension with the feed spindle or with a shaft ₇ which derives its movement from the feed spindle and it can remove the slotted disc from a light-sensitive »

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SAD ORIGINAL

borrowed "arrangement that are scanned on the Feed screw odor the visile "is attached" if the feed spindle stands still * the light * = · sensitive arrangement receives an alternating current signal an IPrequanz, dio of the frequency of the drive » motors dependent -is * whereas the. Frequency of the Signal to the light-sensitive arrangement of deviates from the reference frequency if the feed = spindle turns in one © that of the other direction, and it is the frequency of the signal at the photosensitive arrangement to a degree above or below-the reference frequency, depending on the speed the feed spindle -dependent,

The output signals of the light-sensitive arrangements? those of the Vorachübspinöeln for the X-A'oiise and the X »Achee sugeo ^ dnet ®ind ₉ can therefore be recorded directly on two tracks of a magnetic tape ο instead köBSUrs, also τοη the alternating current =» sigaalea derived pulse signals-recorded who « den and two spiiresi of the program image. _c Can a third track pick up the Beaugsfrequena? τ / ährand a fourth track © d to record @ r movements can be used which must ausfükcaa a Sshneidwerkzeug the tool "" machine to perform the desired operations to _{$ o}

This fourth track is operated with the help of a control unit for di © 3 ° Achae recorded in the information

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1/1138

8AD OFlKSlMAt

Appropriately entered with the help of DekadeaBohaltsrn will * which the starting position iess Sehneidwerkseuges at a predetermined reference point as well as information regarding the various movements of the cutting tool in di © Schjaaidstellungeii relative sum Work ^ tüßJi indicate"

Further details and developments of the inventions « information can be found in the following description, in which describes the invention with reference to the Auaführungsbeispieles shown in the drawing and is explained in this example recording with the aid of a follower device as described in British Patents 1,096,018 and 1 141 76? is described «. As mentioned above, the invention does not extend to the use of such follow-up devices limited and ea can furthermore the features to be inferred from the description and the drawing in other embodiments individually or multiple applications in any combination find ο show it:

the schematic circuit diagram of a # olgevor ~ direction, v / ie it in a device for Progranna recording according to the invention can find delusion?

Figo 2 shows the schematic representation of the arrangement

• for generating Wecshsslstromsienalen _f the frequency of the Umdrehm-g ^ cordinaten the "engines depends,

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908831/1199

SAD ORIGINAL

3 and 4 are schematic circuit diagrams of the facilities, for recording the programs on magnetic tapes and

a block diagram of the device for Controlling the machine tool according to the records on a magnetic tape «)

In the embodiment of the invention shown in the drawing, use is made of a line-responsive follower device as described in the above-mentioned British patents Help from feed ^{spindles 11 Λ} moved, di © from ikutriebsmotoren 1? and 20 for the X- bswo X-axis, which are shown in Figo 1, are set in rotation *

The "follower head contains a rotatable member, the light-sensitive imord-iuagen \ G1 and 102 tra ^ t, which are guided on an elliptical path over the following contour D hiB- \ md- A carrier 42 for the light-sensitive arrangements is from an eccentric pin 48 on the shaft of a synchronous motor 45, which can be a three-phase motor * which can be fed from a single-phase network via a capacitor O used for phase shifting _a

1/11

bath

The output signal of the light-sensitive arrangement 101 is fed to a servomotor M via an amplifier FSA and drives this servomotor and a tachometer generator Φ ο The amplifier FSA contains filters through which components with twice the oscillation frequency of the (stamp 4-2 are suppressed <the servomotor M is connected to the rotatable member of the following head, so that this member is "steered" in such a manner that it follows the contour of D when the follower head is moved around this contour _0. the rotational movement of a öinus-cosine potentiometer meter 59 operated, which delivered drive signals for the drive motors 17 and 12 for the X-axis and the Y-axis or ₀ TY received »

These arrangements ensure that the drive motors for the X ”and Y axes move the follower head over and along the line to be followed when the X and Y drive motors Λ7 and 12 in one or the other direction at changing speeds according to the course of the line D and depending on the longitudinal movement imparted to the rotating member by the servo motor M ".

From Figure 1 · other significant features can be the follower out ₀ The photosensitive array 102 serves as a preemptive search arrangement

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831/1198

8AD OBIOiNAL

and feeds an amplifier A and a Beiais EL · which is connected to a delay circuit BL ₀ A contact RL1 of the relay RL causes a deceleration) when the relay RL is triggered as a result of a sudden change of direction detected by the arrangement 102. From the relay contact RLI is on 7er slowing resistor SR switched on, which changes the input voltage for the sine = sosine - = »potentiometer 59« fed to terminals T * and 2p) to which the voltage from the potentiometer SG used for speed control is fed »

2 shows a control unit that is assigned to the feed spindles 111 of the drive systems for the X and Y axes, which drive spindles are used by the drive motors 1? and 12 are operated «. Concentrically to the feed spindle 111 or concentrically on an intermediate _{shaft 112 1} which is driven by the feed spindle 111 with the aid of a toothed belt 113, a further shaft 114 is supported, which carries a radially slotted disk 115 and is driven by a constant speed motor 116 which is fed by a source 142 (FIG. 4) providing ain @ reference frequency. In the embodiment shown in FIG. 2, the further shaft -114 is driven by a toothed belt 11? driven The end of the * intermediate shaft '! 12 or, if the further shaft 114 is arranged concentrically to the feed screw, the end of the feed screw 111 carries an arm 118, which is connected to a light source 119 and a bracket ", 121, the

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909831/1198

calibrating extends around the hand of the slotted disc 11 *> around and facing away from the dor light source side of the disc, a photosensitive member 141 trägtο Power * ^{ÜR d} * ^e light source 119 and connections to the photosensitive member 141 of a disc are made 122 with the aid of "the nisht nahai »shown slip rings with which a stationary office unit 12? is in Kingriff »

It can be seen that, when the feed screw 11 ″ is at a standstill, the light-sensitive element in the bracket 121 © is supplied in an alternating current signal, which depends on the rotational speed of the slotted disk 115 and is equivalent to the reference frequency, whereas when the feed screw 111 is in rotates in one direction or the other, the photosensitive element 141 generates an AC signal having a frequency greater than or less than the reference frequency; This structure is substantially the same in the control units for the X and the Y 'axis _c

If a control unit is provided for the Z-axis, a device similar to that shown in the drawing is used, apart from from the Voz feed screw 111, and ea becomes the wool 112 of the control unit for di3 Z »axis here from one Motor varie.bler speed driven by the control unit 124 shown in FIG. 3 of the drawing for which Z = Axis8 is operated »Y / eitarfein

309831/1196

ϋ, -Φ

-On the Z-wischemreXle 112 a perforated disk 128 "is attached and there is a light-sensitive element 141 on one side and a light source on the other side of the shelves Control unit 124 and the start of the motor is caused by a suitable switch-on button, while the run is ended * when a number set by means of the decade switch 126 has been counted back to zero in both directionsa, which make it easier for the surgeon to adjust the device and allow him to recognizea _? when the movement ends in alignment with the teeth

In general, oil / drive charging is swisclien to the follower head and the drive motor for the X «» and the ϊ-axis is interrupted. the control unit for the 2-axis is in operation ^: and © s kajm the 3C = land X-drive automafeisek or with the help of an additional switch button © @ meder tu G-ong set ^ when the control unit for the S-axis the movement finished ■ has entered _t _di® diareh di © Bekaclsnschaltar 126 where “Wi © b @ 2? © its is mentioned _f - can the follower head *” device be designed in such a way that the following of the contour is undermined ^ -w © in the on odor aeben the ■ traced line ® ± n® S-fcopmarke appears ο In some cases © s' desiresche.nswert _f these substances? a? ke ssu

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BAO ORIGINAL

«16 -

run over * and it can for this purpose on the control panel; which also contains the control for the Z-axis, a corresponding stop button must be provided ₀

Other elements of the invention are shown by way of example in FIG. 3 of the drawing. Tape device and associated amplifiers are indicated in generalized form at 131 together with the input line 132 _t which is supplied by the photosensitive member 141, which is adjacent to the slotted constant of the motor 116 speed driven disc 115 ", as already described with reference Figo explained _f is the Light-sensitive element 14-1 carried by the intermediate shaft 112. The perforated disc 128 controls the supply of pulses to the counting unit 124, which in turn supplies an output signal for controlling the speed and direction of the drive motor 125 a coincidence circuit 133 and a speed and direction control arrangement 1;> 4, which feeds a DC drive actuator 135 which supplies the drive signal for the motor 125 and receives a feedback signal from a tachometer generator 136 which is supplied by the motor 125 narrow = driven willo

Figo 4 apparently illustrates the essentials Merlcmale for recording the X «= and Y ~ signals, the already mentioned according to Fig. 2 are the feed spindle 111 is driven by a drive motor 138

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BATH ORIGINAL

driven, which receives its drive signals from the system for line tracking indicated in general at 139 o It ssi »» assumed that it is in Fig. 4 · at dom Mot02? "^ B ^ ö-βη drive motor for the X ~ axis acts _o The feed _{spindle 111 or 0} the equivalent intermediate shaft 112 according to Pig * 2 carries a bracket 121 with a light source 119 and the light-sensitive element 14-1 _o These parts are from the Feed spindle 111 moved on a circular path around the slotted disc 115 -which is driven by a motor of constant speed 116- This motor receives its drive signal from a reference frequency source 14-2, which sends a signal to the tape recorder via line 14-3 131 so that it is recorded on a track of the tape. An output signal from the reference frequency source 142 operates the motor 116 after it has passed through an amplifier 144. The tape recorder 131 is connected to the tape recorder 131 via the line 14-5 via the line 14-5 X = »axis assigned signals _t while the signals for the Y-axis are supplied via a similar line 14-6 ₀ The signals for the Y-axis are supplied by a second unit, This is essentially identical to the unit according to Fig. 4- and the "ropes 139 _? 13Ö, 111, 121, 119, 1 ² Mt W and 116! Touches ο

It goes without saying that in a simple embodiment = form of invention? as indicated in the drawing Schmilicht is, a total of four Spufön on the belt

909831 / 119Θ

8AOORJGlNAt

13 ~

shaped {embossers, namely the reference channel, which pulls the X-axis and the X-axis * · assigned signals _t which are derived from the feed spindles for the X-axis and the X-axis, and a signal for the Z axis, which is recorded in the manner illustrated in FIG. 3 of the drawing

A magnetic tape ₂ that has been recorded in the dsm tape device 131? Any machine tool can be used for operation if it is set up to be controlled by recorded programs from signals of the type described hydraulic drives or in another suitable way «

The present invention also extends to the control unit of a machine tool with the aid of a control unit, one embodiment of which is shown schematically in the form of a block diagram in FIG. 5 of the drawing o Pie control unit according to FIGS. which includes a 2a work table for receiving the workpiece, the aiii; With the help of feed spindles for d5, e X = and the Y-axis can be moved ο E. One of the feed spindles 111 is indicated in Figo 5 ο This feed ^ indole carries eiium BÜ £ 3l

909831 / 119Θ

BAD OBJGINAL

both a light source 119 and a photosensitive element 14-1 are attached thereto Both elements comprise a slotted disc driven by a constant speed motor 116 is driven, which in turn via an amplifier 244 from the reference frequency track the tape program "is operated that the tape ~ playback" device 231 runs through

Do you get signals from the tracks for the X and Y axes to an amplifier 151? then a trigger circuit 152 and finally a frequency and phase comparator = "supplied 153 The frequency and phase comparator = · 153 also receives signals from the photosensitive member 141, an amplifier" and shaper circuit 15 ^? a variable phase shifter 155 for zero adjustment and a trigger circuit 157

Eae output signa! the Eomparators 153 is a Dekociierer 158 thereafter _t an integrator 159, "and a DC amplifier 161 is supplied, which provides a return Kopp · = lung signal which is fed via a 3? EHL" rkreis 162 to the decoder 153 and also the drive motor 163 for the feed screw 111 actuated and thereby causes the displacement of the workpiece with respect to the cutting tool ο It is evident that the motor 163 is a direct current motor or a hydraulic control device

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909831/1196

can _β either to drive the feed spindle 111 or to effect a direct displacement of the workpiece or the tool Z-Aohee assigned track is used to provide the cutting tool with the necessary pre-stroke movements in order to move it in the direction of the workpiece being machined or away from the workpiece ο

In all cases the control of the movements in the direction of the X ”and the Y axis given to the workbench and in the direction of the Z” axis which the cutting tool is to carry out towards and away from the son's position is controlled by the output signal the comparator s causes 153 _t which the respective drive motor 162 steuertο the comparator 153 compares the respective driving frequencies that are received from the tape «« reproducing apparatus 231 through the amplifier 151, with the signal which is received by the photosensitive element 14-1 and the actual movement of the corresponding feed spindle 111 reproduces the output signal of the comparator 153 actually provides an error signal which ensures that the corresponding drive motor 163 reproduces exactly the signal of the corresponding track of the magnetic tape which is played in the tape playback device 231

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8AD ORIGINAL

1815887

The slotted Ssheib® 115 is made by the S; ynchron ~ met ©.? 116 adb one? Speed driven _t which is determined by the recorded reference signal, the sound is reproduced to the BaricWV / ieclergabagerät 221 ο

In all cases, control of the movement given to the door is obtained by comparing the recorded signals with the recorded signal that is used, a member like the slotted disc 115 with the aid of the S ^ / nchroniuotors 116 to drive ^ _t

The invention is deiBjaaah based on the method sinam in ζ recordable? an ongoing informa « recording track, in which a shift in one or the other? other direction by © in up = The same signal is reproduced at the frequency above or below a reference frequency, Bas was at = The signal to be redrawn does not need to be τοη To be derived from movement that see on; the rotation d @ r feed screw 111 results, and © s is also not necessary that the signal through the combination a slotted disc 115 »a light source 119 and a light-sensitive element 141 generated willo A linear movement produced by hydraulic or Pneumatic equipment is given to a carriage that carries the follower head, can with the help of a combination of rack and pinion in a rotary motion

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909831 / JtSf

reacted call and it can then this rotational movement be used to anzutrei a rotating member · = "ben _t a light source and a light sensitive element bears, similarly to the light source 119 and the photosensitive member W" In all arrangements, the photoelectric system can be accomplished by Another equivalent system for signal generation can be replaced, for example by a toothed wheel made of magnetic material, which is carried by the feed screw or an equivalent shaft and to which an induction coil is assigned, which is rotated by a motor 116 of constant speed slide for example by means of a hydraulic or pneumatic control device issued linear movement not notwen & are ig converted into a rotary movement, since signals can also be removed by linearly extending signal-generating elements? * game, in = * con a toothed member _t extending longitudinally of the V / e of linear motion and generates signals by photoelectric or inductive means driven by a constant speed motor 116 and arranged to generate an output signal at the reference frequency when the carriage is stationary and at a frequency equal to above or below the reference frequency when the carriage was moving in one direction or the other

Other alternatives to using photoelectric or inductive means of signal generation are devices,

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BADORiGlNAU

which are based on the Hall effect, or there can be such Signals generated with the help of resolvers or synchros will"

In all embodiments of the invention it is easy possible to create a mirror-image reproduction of the scanned object by adding the » drawing circuit set up in such a way is that there is a reversal in the direction of rotation of the drive means of the machine tool that of the recorded Should be program controlled

A program for reproducing the contours of a drawing showing a to be reproduced object is _r is generated as follows: It is assumed "that the drawing has been, made taking into account the dimensions of the cutting tool to be used in the machining operation, Doho that the outlines of the drawing, in the event that it is an outer contour, is larger in all directions by the radius of the cutting tool to be used o Furthermore, the drawing contains a reference mark which was normally outside the contour to be reproduced connected to a certain section of the outline, for example with a corner, in which case the guideline is expediently aligned with a leg of the angle formed by the corner and merges into this leg o If necessary, additional guide lines can be attached,

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90983T / 1198

ßAO ORIGINAL

serve "for example, load _f the follower star. Überqueran the ICcntrx · au cause _f so that a & To :: ^ä l7est'immtö5i points aee workpiece other notwen = ended Eearbeitungscpe2? ati © nen lists tmd DARR ultimately su represents · Bessugsiaarke s

Eic. " such a good idea \ vird duan. in the lines, according to the right order, it will be the following header :? brought over aie beaugsmarke ₀ In a typieeliea Es.beispiel are in the decade switches äöi _; 3I «eue3. ⁿ ei3ilieii5 respect for Z = AeIiSe information = "borrowed the © rforderlichan Anfangsbewögung of Schneidwerlraeuges entered and it will be the gevninachten Toracfoubgesohwindigkeit ©" gewälxlt _t after which the band '='aui'Eiwichnunijijgerät turned on so that the _p Inforniat: .oi3.e ; i "bssüalicb. the S» axis © entered into the Z * Spia7

What if the one from the Dskadenechaltes? controlled counter have finished their © "2-ählung" »the drive motor for the 2i» Acb.s® stops and the subsequent mechanics in iaag gßsöi; st _? thus ax the guideline from the Beaugamar; i3 to dsi.? 53eie!?. Nung- "to ku the Kon'iro ^ to be worked out: followed The movements of the follower head along dcj; (? .Χ - == and the Y« A <5bss are «as signals or impulses with frequencies registx ' i ^ rt ^ mn is the "the Bewogi ^ gs-gs Isx the X axis IMD d sr Y" axis © hangers · .. Just before the Kont'.jr e: i: eio>^r;;.? v / i; cd _7. can be a HaXteiaa on the guideline: "ke _? ";ie; LsiiielS7 / eise a transverse line _? angsbracht soin. dw? oh ilie .itoi * follow-up mechanism stopped v / irdc if the recording device continues to run

909831/1198

8AD ORIGINAL

now register the Z = mid. Y ^ Sptsren the reference frequency ₀ Nuss, usi'bere information for the Z-Ashssj. for example, with respect to the feed motion speed * · ιηα the cutting unit in dia = gouges- Schneidstellüng -eingegeben be _o Disse input is _f τ / ie already explained j with the auxiliary. Dekadensshalter., Barm, if the follow-up device "direction -" - arceut is set in motion, the outline "ntlangziilaufeno V / o eriordsrliöh ₉ is aie through the attachment of cross marks * above all the outline = line j) d © r at entrances = · Suspended or Austrittss'isllungen the stop brands 3ind "provided so that the required movements are eingegebeai in the record of the Z-axis könneny" van moving the Schneidv? erkzeugas au bestimBieno in some cases, movements along the three "axis of the B8 = · are movements 3 slugs dor X '= and Y EARBY © superimposed sain = Optionally, the sequence returns device aur Beaugsmarke back and it is then the recorded program completely ο it' then tismxi to sine tool "maschin © passed, in ae: ? Location iat, from öiiiar tape drawing of the type described, controlled to be lie needed Inf ormations are available in a form »which is suitable for direct control of the machine tool without the need to use a computer.

0 9831/1196

SADORlGiNAl.

According to eier Erf
Program can be found in all sesr.snatoii Werkseüg = machines Α, ηπδηαν.ηβ, ctie: iir; .an Werl>: 1; iacl ?. anifv / eisenj dor for a Veraohiobuns littleatena_ in Eichtimg des * ^ Aehsa imd doj, · X «=» Ashse aiii; Hilio von ßer-voiiiütoran 3i: asericii.to "i;: ua ^- _{!; F} v; io d'äm in * 5 angodeivfeeten servo motor 163?

909831/1190

BATH ORIGINAL

Claims (1)

ζ ¹ ? 'i? ai; e ' ic procedure for- E:? seugttn.ß an a'afgeseiehneten P;? c gramme a am? tfartXauienden feed control a :? Werks-eggigruarichine, characterized in that a follow-up device is guided around öIaä © reproduction (D) ■ an an-ip. ^ Fex-tiigeraasa object, ί, η & Θία moves the follow-up device with the help of a ■ feed spindle (111) or the like drive device is, and clie rim operates a device * Sig ialgeber (115? 116, 14-1) which generates a V / _t echselstrOrasigne.l the frequency of the movement direction and the speed of the feed device depends ₇ and that the alternating-current signal aufgeaeiohnet v / irdo 2ο method according to claim 1, characterized in _t that the follow-up device in the direction of an X 'Achße and © iner Ϊ-axis by means of servo motors (17 ^ nd. 12) is moved, controlled by a longitudinal movement, a rotatable assembly the follow-up device is issued by another servomotor (M) _? of the signals from a light-sensitive arrangement (101) it receives the transversely on an outline (3). and is moved so that alternating current signals _t, which are derived from rotary movements of the feed screw, generate alternating current signals with respect to the X = and X «= axis, the lsi dependence on the sense and O / O 909831/1196 SAD OBiQiNAL the speed of the rotary movements are above or below a reference frequency "and that an ire" frequency characterizing the reference frequency is recorded ο Method according to claim 1 or 2, characterized in that that an additional signal is recorded for the Z-Achee, from a control panel (124), the decade holder (126) and counter (127) contains «from is entered and is used to control a variable speed motor (125), characterizes the movements of a tool towards and away from the cutting position " so that the recorded signals characterize intended movements of the tool O Method according to claim 2 or 3 »characterized by» indicates that the movement of the follower is in the directions of the X-axis and the Y-axis and any necessary movements of the tool in the direction of the Z-axis with the help of a first rotating member (121) which together with a driven shaft such as a feed screw (111) or an intermediate shaft (112) revolves, and a second rotating member (115) » which is driven by a synchronous motor (115) operated at the reference frequency is recorded becomes, which rotating members (121 and 115) photoelectric Medium (141) or equivalent inductive 9 0 98Π / 119β 8AD ORIGINAL Have means that respond to relative movements between the rotating members and generate suitable V / echselstromsignale for recording, the frequency of which, depending on the sighting and the speed of the feed screw ('Hi) or the intermediate shaft (121) is above or below the reference frequency, _etc. 5ο Method for controlling a machine tool with the aid of a recorded program which has been generated according to the method according to one of the preceding claims, characterized in that the AC signals recorded on several tracks of a recording medium are reproduced and compared with a reference frequency and control signals are compared be generated? with the help of which the machine tool is given the desired movements by means of servomotors (163) ₀ 6ο method according to claim 5 t characterized that an alternating current »reference signal is reproduced from the recording medium and used to a first rotating member (115) by means of a Servomotorss drive at constant speed and this rotating member is arranged adjacent to another rotating member (112) which is driven in synchronism with the movement of the machine tool caused by the motor assembly (163) is, whereby a control signal for the motor » OAS ßAD arrangement (163) or an equivalent device is generated which the movement of the Workpiece or slide movement in the direction of the Z = axis of a cutting tool caused A process for Baarbeitung of workpieces with the aid of recorded programs _t which have been produced by the method according to any one of claims 1 to 4, characterized in 'that a reproduction of the object being constructed in the form produced a the Unrißlinien (D) reproducing drawing and this drawing using a light follower which is movable in the direction of X and Y coordinate axes and is caused to move along the contour line so that the movements of the saw device are recorded as signals of variable frequency, the frequencies of which are above or below a reference frequency that the reference frequency is also recorded on the recording medium and that signals derived from the reference frequency and the signals of variable frequency for the movement in the direction of the X and Y axes are compared with one another in order to generate control signals for drive devices (163) derive from the machine tool and thereby d ie movements of the workpiece in relation to a cutting tool 909Θ3Τ / 119Θ BATH ORIGINAL to effect that are required to be in the Workpiece reproduce the contour taken by the follow-up device during the recording has been pursued o 8ο device for generating a recorded Program for the continuous feed control of a machine tool, characterized in that « that the follow-up device with the aid of drive motors (17 and 12) assigned to coordinate axes, which are under the control of a steering movement caused by a rotating member of the follower head of a servomotor (M) is caused to move along the contour of a reproduction of the her » to run along and around the contour of the object to be delivered, and that the rotation of the Motors associated with coordinate axes are used to generate alternating current signals at frequencies that are to a degree above or below a Reference frequency lie, dal <through the direction and the speed of the motors assigned to the coordinate axes is determined, and that the signals recorded at a variable frequency on a recording medium for use in the continuous feed control of a machine tool will· 9ο device according to claim 8, characterized <? that the tilting device of drive motors (17 and 12) is driven for the X-axis and the Y-axis, .Λ 909831/1196 ORIGINAL each of which drive a first rotating member (121), each in addition to a further rotating member Member (115) is arranged, which is driven by a reference frequency at constant speed « ben is, and that by, the relative movement of the rotating members (121 and 115) alternating current « Signals of variable frequency are generated, depending on the direction and speed of travel the drive motors (17 and 12) depend Device according to claim 8 or 9, characterized in that the drive motors (17, 12, 128) for the X «and the Y axis under the control of a Steering movement given to a rotating member that forms part of the follower device, that the follower device is continuous runs along the contour (D) of the workpiece to be produced, that the signal generation is used Arrangement (141), which depends on the drive motors for the X and Y axes derived movement works, generates signals with a frequency that is above or below a reference frequency, depending on the sense and the speed » speed of movement of the motors for the X and Y axes, and that the signals and a signal of constant frequency representing the reference frequency, are stored independently of each other on a magnetic tape « 808131 BAO OHIQiNAL 181 ^ 87 11o device according to one of claims 8 to 10, characterized in that it has a first rotatable member (121) which, with the displacement of the Follow-up device is coupled to the reproduction of the object and is characteristic of this shift? an adjacent second rotatable member (115) which is of a Motor (116) is driven at constant speed, and comprises a signal-generating device associated with the rotating members, which Signals of variable frequency generated * whose frequencies » Must be above or below a reference frequency that of the stationary position of the first rotatable Member (121) corresponds, and that the signals of variable frequency on a record carrier recorded ο 12o device nach.Anspruch 11, characterized in that the second rotatable member (11?) A is slotted disc and the first rotatable member (121) is a photosensitive element (14-1) and a light source (119) which, depending on the helative speed of the both rotatable members generate the signal of variable frequency «, ο device according to one of claims 8 to 12, characterized in that a manually operable control device (124) for recording additional information on the record 90983 ^ / 1198 J.; _f V j > ι SAD ORIGINAL medium intended eats? which represents the tool feed or the axial © shift ο $ a cutting tool in base * on the Y / plate ο 14 ·· _e device according to claim. 13? characterized in that the manually operated stevedore device (124) has a control panel, fiaa a number of digital mounts (126), with the aid of the desired displacement of the Y / s tool _s is adjustable md \ a of the control panel of the desired cut "or AxLalvorachub controlled motor variable in accordance with speed = points _f and that a noläuft by the motor (116) IIIT a constant, the reference frequency entoprechenden speed driven flignalerzeußßnde device (115)? which serves for the detection and recording of the signals representing the cutting feed, and counter elements (127) which are actuated by the variable speed motor according to the preselection by the Y / ählsohalter (126), enable the recording of a sequence of signals, which represent the required cutting feed or the axial movement of the cutting tool and the workpiece 15o Device according to one of claims 8 to 14 for controlling a machine tool with the aid of a recorded program _t in which the various 9 0 98 31/1198 BATH ORIGINAL Movements of the machine tool, including a lateral relative movement of a cutting unit for the workpiece to generate the Y / ErkBtüelrkQnttt ;? * md weJalwoisen axial movements cLeo T / erirnQiigefj hia-su and away from the son's oath = »position? ctaffch signals of variable frequency ge ~ controls Werdan _p de ?? e: a frequency above or below © iner reference frequency, thereby the movements in the sense and the speed of displacement with respect & v £ Tersolxiedene Koo ^^ dinatenaclisen and Be "of the tool hlnsu and characterize v / eg of the cutting pitch, thus identified? that the machine tool has a motor drive (163) of the variable on the recorded signals frequency to = "speaks and operated by these signals \ vill _t and that operated by the reproduction of these drawn on = signals assembly ic the workpiece and the cutting tool. Dependency t »n the recorded. Signals relative movement arteiien _t to the displacements of the work "= ixnä piece of V / erkaeugas on the respective axes sa bov? _T irken wherein the sense and the speed of movement of the stored program depending β 16c device according to claim 15t, characterized in that that the recorded program contains a record of the reference frequency and that a reference frequency ο / ο 909831/1196 8AO OBJGiNAL serves there _? Motown (116) to drive constant speed, * m & which $ e e5.ner is assigned to one of the motorized characteristics (163) ^f 3ov machine tool provided for each coordinate axis and generates a feedback signal because the drive ( 165) depending on the variable frequency recorded in the program 17 ο device according to claim 16, characterized in 'that dor each coordinate axis associated motori "see drive (165) a first rotatable member (121) drives and the motor (116) of constant Speed for # ~ speed a zweiteβ rotatable member (115) drives, daa associated with the first rotatable member (121) isfc _? that a signal-generating arrangement is coupled to one of the two rotatable members _? which represents a control signal srzeug1i _for the movement of the motor "see the drive as a feedback signal and that the control signal operated by the dsm recorded program and the feedback signal operate the motor drive (165) as a function of the recorded program" 909831/1198 BADOHiGINAL -si - Blank page