DE1563766A1 - Arrangement for cutting threads on a numerically controlled machine tool - Google Patents

Arrangement for cutting threads on a numerically controlled machine tool

Info

Publication number
DE1563766A1
DE1563766A1 DE19661563766 DE1563766A DE1563766A1 DE 1563766 A1 DE1563766 A1 DE 1563766A1 DE 19661563766 DE19661563766 DE 19661563766 DE 1563766 A DE1563766 A DE 1563766A DE 1563766 A1 DE1563766 A1 DE 1563766A1
Authority
DE
Germany
Prior art keywords
spindle
machine tool
arrangement
numerically controlled
controlled machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19661563766
Other languages
German (de)
Other versions
DE1563766B2 (en
DE1563766C3 (en
Inventor
Hubert Dipl-Ing Helmut
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of DE1563766A1 publication Critical patent/DE1563766A1/en
Publication of DE1563766B2 publication Critical patent/DE1563766B2/en
Application granted granted Critical
Publication of DE1563766C3 publication Critical patent/DE1563766C3/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/182Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
    • G05B19/186Generation of screw- or gearlike surfaces
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)

Description

Anordnung zum Schneiden von.,GewInden bei einer numerisch gesteuerten Werkzeugmaschine Die 2,rfinduna betrifft eine Anordnung zum Schneiden von Gewinden bei einer numerisch gesteuerten Werkzeugmaschine mit-Synchroni sation zwischen Vorschub und Spindeldrehzahl mittels eines von der Spindel angetriebenen digitalen Impulsgebersp der an einen, entsprc#c#iend der gewünschten Gewindesteigung programmierten, I dual organisierte n Rechner oder Frequenzteller angeachloesen ist, dessen Ausgangspulse dieFührungsgröße für den.Vorschub bilden. Beim Gewindeschneiden auf einer Werkzeugmaachine m143 der Werk- stückvorschub In Richtung der Spindelaohne mit der Spindeldreh- 2ahl synchronisiert sein. Wird der Vorechub direkt durch Getriebe vom Spindelantrieb abgenommen, sind beide Tolle von selbst syn- ehronisiert. Sind für Spindel und Vorschub unab hängige,Antriebe vorgesehen, was z.B. häufig bei mit numerischen Steuerungen ver- sehenen Werkzeugmaachinen der Fall istg so muß durch zusätzliche Geräte 'für den relativen Gleichlauf gesorgt werden. So hat man z.B. schon vorgeschlagen, mit der Spindel eine Taihomaschine zu kuppeln und deren, je nach.der gewünschten Gewindesteigung abetuf- bares Ausgangssignal als Führungegröße für den Vorschüb zu be. nutzen. Für numerische Steuerungen, vor allem für Bahneteuerungen, ist jedoch dieses analoge Verfahren meist zu ungenau. *an hat daher auch bereits vorgeschlagen, einen digitalen Impulegeber mit der Spindel zu kuppeln und die Impulse über einen entsprechend der gewünschten Steigung einstellbaren Prequenzteiler oder Rechner zu fUhren und diesen Wort dann als Führungsgröße für den Vorschub zu b:,3riutzen. Bei Bahnsteuerungen, bei denen der dual organisierte Interpolator n,i,3h den DDA-Verfahren arbeitetg werden die Impulse dieses Im- pulsgebera dabei jeweils zum Auslösen eines Additionstaktes b enu ). z t Die Aufgabe 13r Erfindung besteht darinp eine rein dual organi- sia-te Steuerung-oo aunzubilden, daß sich Gewindelinge und Stel-. .q-,irijz Jir,!kt programmieren -la-.leert, Dieue Lufgabe wird erfintlunge- zy,en;iß lidtii,#jli geläst, daß der Impulegeber derart mit Impuls- marken versehen-Ist, daß bei je&er.Bpindelumdrohun«,2n Im-Pulse. zum -Bechn*r oder Prequengteiler gelangen#- U*L-,t ist die Steigung direkt programmierbar, Anhand eiftär ZeichnUng s# -dt* Zrfin44", nähst erlittitert t Mit der Spindel 1 ist *tu MNM@tiubhor Win-- - kelschrittgebee 2 gekuppelti di r tut beinen'Ümr*ng mit 2-10 1024 Impulemerken versehen ist. Pro Opindelundreküht gelegen dann 1024 -Impuleä"tem AU:rnäh»kopf, 3 zu einen tttn.du-al #organi- sier#en Prequeniteiler.4. Eine der 1* 0 Obe-r 6 ra:umlärten Steigung entsprechende -Zahl von Impulnen.t*IM&t dann, Uber den Freque nst#Iler 4 zum Speteher 7 unddient ali--Pühruffle&r81le für den Vorschub In Richtung dir ßpindelabhoeo*Zwocke Üminetzung det deZimalverechlüsselten progra»terten ßteigun4**prte in Daalwerte Ist dem Frequenzteiler 4 nooh-.ein Desixal-Dual-Wandler vorge- schaltet. Sei beiepielsweise angenomen, daß- 1024 Impulse pflo Spindelun- drehule, abgegeben worden und.daß ein Aungangetzpule des Prequens- teilere einem VorschUb von 6.01, um entspriobt# _so UM sich maxi--. -mal eine Steirubg von 10.23#ng- progrmwiere.iii Soll z.B* die Steigung 8,#53 » ptrogra»iört wardeng so wird die Zahl 853 dezimal-verschlUnaolt in Gebar 6 eingestellt#, dezi Pro- quentteller 4 läßt dann von 1024 ankommenden Impution 853 durch.' Wären Vom Impulsgeber 1000 Impulse pro Umdrehung der Spindel abgegeben worden. so ließe sich diese Steigung nicht mehr direkt programmieren, sondern es mUßte statt der Steigung 853 die Steigung 853 - 1000 im Gebot 6 eingestellt werden, da 1000 1024 keine Potenz von 2 ist. An J-J-e Stelle des Prequenzteilers tritt bei Bahneteuerungen der dual organigierte Rechner, der z.B. nach dem DDA-Verfahren ar- beitet. Ei(3r wird bei jedem vom Impulageber gesteuerten Addi- tioii,-i.,-ikt der Inhalt des ":obere- 6 dem Inhalt eines Registers man dividiert die Steigung durch die 1024 Ein- heiten und summiert bei jedem Additionstakt eine Einheit auf; Jer '-I#wellige Ubertrag gelangt dann in den Sollwertspeicher 7 und b'.ldet mit den übrigen Überträgen die Führungsgröße fUr den Vorrciiu*-#. Arrangement for cutting., Threads in a numerically controlled machine tool The 2, rfinduna relates to an arrangement for cutting threads with a numerically controlled machine tool with synchron sation between feed rate and spindle speed by means of one of the spindle driven digital pulse generator to a, programmed according to the desired thread pitch, I. dual organized n computers or frequency plates are attached, whose output pulses form the command variable for the feed. When thread cutting on a machine tool m143 of the factory piece feed In the direction of the spindle without using the spindle 2 be synchronized. Is the feed directly through gear removed from the spindle drive, both greats are self-syn- honored. Are independent drives for spindle and feed provided, which is often the case with numerical controls, for example. see machine tools is the case, so must by additional Devices' for relative synchronization. So one has For example, it has already been suggested to use the spindle for a Taiho machine coupling and their, depending on the desired thread pitch, output signal to be used as a guide variable for the feed. to use. For numerical controls, especially for path control, however, this analog method is usually too imprecise. * has on therefore already proposed to use a digital pulse generator to couple the spindle and the impulses via a corresponding the desired slope adjustable frequency divider or computer and then use this word as a reference variable for the feed rate to b:, 3riutz. With path controls where the dual organized interpolator n, i, 3h the DDA method worksg the impulses of this im- pulsgebera in each case to trigger an addition cycle b enu ). nt The object of the invention is to create a purely dual sia te control-oo aunzubilden that thread pieces and STEL. .q-, irijz Jir,! kt program -la-.leert, the new air delivery is invented- zy, en; iß lidtii, # jli relieved that the impulse generator with impulse Marks are provided that with each & er. Spindelumdrohun «, 2n impulses. get to the -Bechn * r or Prequengteiler # - U * L-, t is the slope directly programmable, Based on a drawing s # -dt * Zrfin44 ", sewing suffered t With spindle 1 , * tu MNM @ tiubhor Win-- - kelstepgebee 2 coupled di r do beinen'Ümr * ng with 2-10 1024 impulse notes is provided. Located per Opindelundrekühlt then 1024 -impulses AU: sewing head, 3 to one tttn.du-al # organizing You # en Prequeni divider. 4. One of the 1 * 0 upper 6 ra: umliegen Slope corresponding number of pulses. T * IM & t then, over the Freque nst # Iler 4 to Speteher 7 and serves ali - Pühruffle & r81le for the feed in the direction of you ßpindelabhoeo * Zwocke Üminetzung det Decimal-coded programmed values in Daal values If the frequency divider 4 is nooh - a Desixal dual converter switches. Let us assume, for example, that 1024 pulses pflo spindle rotating coil, has been handed in and that an Aungangetzpule of the Prequens- divide a feed rate of 6.01 to get # _so UM maxi--. -time a Steirubg of 10.23 # ng- progrmwiere.iii If, for example, * the slope is 8, # 53 » ptrogra» iört wardeng then the Number 853 decimal-encrypted set in Gebar 6 #, decimal Pro- quentteller 4 can then be carried by 1,024 incoming Impution 853rd ' If the pulse generator were 1000 pulses per revolution of the spindle been delivered. so this slope could no longer be made direct program, but instead of the slope 853 it had to be the Incline 853 - 1000 can be set in command 6 , since 1000 1024 is not a power of 2. In the case of path controls, the dual organized computer, which works e.g. according to the DDA process works. Ei (3r is used for every addi- tioii, -i., - icts the content of the ": upper- 6 the content of a register one divides the slope by the 1024 inputs units and sums up a unit with each addition cycle; Jer '-I # wavy transfer then reaches the setpoint memory 7 and b'.ldet with the other transfers the reference variable for the Vorrciiu * - #.

Claims (1)

.Patentanspruch Anordnung zum Schneiden von Gäwinden bei einer numerisch gesteuerten Werkzeugmaschine mit Synchronisation zwischen Vorschub und Spindeldrehzahl mittels eines von der-Spindel angetrieMnen digitalen Impulsgebers, der an einem entsprechend der gewünschten Gewindesteigung programmierten dual organisierten Rechner oder Frecluenzteiler angeschlossen ist, dessen Ausgangspulse die Führungsgröße für d'en Vorschub bilden, dadurch gekennzeichnet, daß der Impulageber (2) derart mit Impulsmarken versehen ist, daß bei jeder Spindelumdrehung 2n Impulse zum Rechner oder Frequenzteiler (4) gelangen. .Patent claim arrangement for cutting gas winds in a numerically controlled machine tool with synchronization between feed and spindle speed by means of a digital pulse generator driven by the spindle, which is connected to a dual-organized computer or frequency divider programmed according to the desired thread pitch, whose output pulses the reference variable for the Form a feed, characterized in that the pulse transmitter (2) is provided with pulse marks in such a way that 2n pulses are sent to the computer or frequency divider (4) for each spindle revolution.
DE19661563766 1966-10-20 1966-10-20 Arrangement for cutting threads in a numerically controlled machine tool Expired DE1563766C3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0106592 1966-10-20

Publications (3)

Publication Number Publication Date
DE1563766A1 true DE1563766A1 (en) 1970-11-26
DE1563766B2 DE1563766B2 (en) 1973-08-30
DE1563766C3 DE1563766C3 (en) 1974-03-21

Family

ID=7527530

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661563766 Expired DE1563766C3 (en) 1966-10-20 1966-10-20 Arrangement for cutting threads in a numerically controlled machine tool

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DE (1) DE1563766C3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2224918A1 (en) * 1971-05-18 1972-12-07 Olivetti & Co Spa Numerical control system for lathes
EP0025652A1 (en) * 1979-08-24 1981-03-25 Fanuc Ltd. Control system for synchronising machine tool motors for tapping operations
EP0086234A1 (en) * 1981-05-14 1983-08-24 Fanuc Ltd. Synchronous operation device
NL8203673A (en) * 1982-09-22 1984-04-16 Tevopharm Schiedam Bv Control using constant-speed motor to control speed of second motor - by digitally converting angular-position signal into speed control signal using comparator and differential amplifier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096770A (en) * 1977-06-06 1978-06-27 Cincinnati Milacron Inc. Method and apparatus for modifying the position of a machine slide to compensate for different following errors
JPH0757444B2 (en) * 1985-06-28 1995-06-21 ブラザー工業株式会社 Screw processing equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2224918A1 (en) * 1971-05-18 1972-12-07 Olivetti & Co Spa Numerical control system for lathes
EP0025652A1 (en) * 1979-08-24 1981-03-25 Fanuc Ltd. Control system for synchronising machine tool motors for tapping operations
EP0086234A1 (en) * 1981-05-14 1983-08-24 Fanuc Ltd. Synchronous operation device
EP0086234A4 (en) * 1981-05-14 1985-12-11 Fanuc Ltd Synchronous operation device.
NL8203673A (en) * 1982-09-22 1984-04-16 Tevopharm Schiedam Bv Control using constant-speed motor to control speed of second motor - by digitally converting angular-position signal into speed control signal using comparator and differential amplifier

Also Published As

Publication number Publication date
DE1563766B2 (en) 1973-08-30
DE1563766C3 (en) 1974-03-21

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EF Willingness to grant licences