DE2259618A1 - PROCESS TO REDUCE THE INFLUENCE OF VIBRATIONS ON THE QUALITY OF THE WORKPIECE DURING CIRCULAR GRINDING - Google Patents
PROCESS TO REDUCE THE INFLUENCE OF VIBRATIONS ON THE QUALITY OF THE WORKPIECE DURING CIRCULAR GRINDINGInfo
- Publication number
- DE2259618A1 DE2259618A1 DE19722259618 DE2259618A DE2259618A1 DE 2259618 A1 DE2259618 A1 DE 2259618A1 DE 19722259618 DE19722259618 DE 19722259618 DE 2259618 A DE2259618 A DE 2259618A DE 2259618 A1 DE2259618 A1 DE 2259618A1
- Authority
- DE
- Germany
- Prior art keywords
- vibrations
- influence
- reduce
- quality
- workpiece
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H11/00—Non-woven pile fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
- B23Q11/0039—Arrangements for preventing or isolating vibrations in parts of the machine by changing the natural frequency of the system or by continuously changing the frequency of the force which causes the vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H11/00—Non-woven pile fabrics
- D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
Anmelder: ' Berlin, den 13.1.1972Applicant: 'Berlin, January 13, 1972
VEB w'erkzeugmaschinenkorabinat 2259618VEB machine tool cabinet 2259618
"T.Oktober" Berlin"T.October" Berlin
g
"T.Oktober" BerlinG
"T.October" Berlin
Berlin-WeißenseeBerlin-Weissensee
Verfahren zur Minderung des Einflusses von Schwingungen auf die Qualität des Werkstückes beim Rundschleifen.Method for reducing the influence of vibrations on the quality of the workpiece during cylindrical grinding.
Die Erfindung betrifft ein Verfahren zur Minderung des Einflusses von Schwingungen auf die Qualität der Werkstücke beim Rundschleifen mit dem besonders die Parameter Wellentiefe Wt, Rauhtiefe Ra und R^. sowie die Formgenauiglceit und Mehrhäufigkeit positiv beeinflußt werden.The invention relates to a method for reducing the influence of vibrations on the quality of the workpieces during cylindrical grinding with the parameters in particular Wave depth Wt, surface roughness Ra and R ^. as well as the form accuracy and multiple frequencies are positively influenced.
Es ist bekannt, Schwingungen beim Schleifen durch einen zweckentsprechenden konstruktiven Aufbau der Schleifmaschinen zu verringern. Dies bedingt jedoch stets einen erhöhten Fertigungsaufwand dieser Maschinen und führt durch die schwierige Beherrschung der Dynamik nicht immer bereits in der Konstrufctionsphase der Maschinen zum gewünschten Erfolg. Oftmals ergibt sich der endgültige Aufbau dieser Maschinen erst nach langjähriger kostenintensiven Erprobung. It is known to reduce vibrations during grinding by means of an appropriate structural design of the grinding machine. However, this always requires an increased production effort for these machines and, due to the difficult control of the dynamics, does not always lead to the desired success in the construction phase of the machines. Often the final structure of these machines only results after many years of cost-intensive testing.
Es ist weiterhin bekannt, den Einfluß von Schwingungen beim Schleifen durch geeignete fertigungstechnische Maßnahmen, wie geeignete Wahl der Zerspanungsbedingungen und Bearbeitungsparameter, zu verringern· Diese Verfahren haben jedoch in der Regel eine Verlängerung der Bearbeitungszeit aur Folge.It is also known to reduce the influence of vibrations during grinding by means of suitable manufacturing measures, such as suitable choice of machining conditions and machining parameters, to reduce · These processes however, they usually result in an extension of the processing time.
Außerdem wurde bereits vorgeschlagen, während des gesamten Bearbeitungsprozesses eine ständige Änderung des Frequenz-Verhältnisses von Werkstück und Werkzeug durch eine konti-It has also been suggested throughout Machining process a constant change in the frequency ratio of workpiece and tool through a continuous
309830/0815- bad original309830 / 0815- bad original
nuierliehe Änderung der Werkstück- und/oder Werkzeugdreh· zahl herbeizuführen, wobei die Einhaltung eines vorbestimmbaren Frequenzverhältnisses vorteilhaft ist, um damit die Nachteile harmonischer Schwingungen, welche sich durch die Ausbildung regelmäßiger Wenigkeiten auf der geschliffenen Fläche abzeichnen, zu unterdrücken.minor change in workpiece and / or tool rotation to bring about number, the maintenance of a predeterminable frequency ratio is advantageous in order to do so the disadvantages of harmonic vibrations, which result from the formation of regular minorities on the Mark the ground surface, suppress it.
Dieses Verfahren ist nur zur Abschwächung harmonischer Störschwingungen geeignet. Außerdem bedarf es zur Durchführung dieses Verfahrens eines komplizierten Regelsystems, welches den Fertigungsaufwand der Schleifmaschinen stark erhöht.This method is only suitable for attenuating harmonic interfering oscillations. It also needs to be carried out this method of a complicated control system, which greatly reduces the production costs of the grinding machines elevated.
Zweck der Erfindung Ist es, die angeführten Nachteile der bekannten Verfahren und des Vorschlages zu vermeiden.The purpose of the invention is to avoid the stated disadvantages of the known methods and the proposal.
Der Erfindung liegt die Aufgabe zugrunde ein Verfahren zu schaffen, welches geeignet ist, störende Einflüsse von Schwingungen beim Rundschleifen ohne fertigungstechnisch hohen Aufwand und gleichbleibender "bzw. verkürzter Bearbeitungszeit zu vermeiden bzw. zu beseitigen.The invention is based on the object of creating a method which is suitable for eliminating disruptive influences from Vibrations during cylindrical grinding without production engineering high effort and constant or reduced processing time to be avoided or eliminated.
ürfindungsgemäß wird die Aufgabe dadurch gelöst, daß kurz vor Bearbeitungsende, vorzugsweise innerhalb des sogenannten Ausfeuerzyklus, die Werkstückdrehbewegung, ausgelöst durch ein Signal, eine hohe Beschleunigung erfährt und diese Beschleunigung bis zur Beendigung der Berührung zwischen Werkstück und Werkzeug beibehalten wird. Damit v/ird erreicht, daß sich die Spantiefe im Ausfeuerzyklus schnell auf minimalste Werte verringert, welche nur einen Teil der doppelten Amplitude, der durch Schwingungen hervorgerufe-i nen Relativbewegung zwischen Werkstück und Werkzeug be. tragen. Die Relativbewegungen wirken sich dadurch pro Werk· stüokumdrehung nur jeweils um den Betrag der SpantiefeAccording to the invention, the object is achieved in that briefly before the end of machining, preferably within the so-called spark-out cycle, the workpiece rotation is triggered by a signal that experiences a high acceleration and this acceleration until the end of the contact between Workpiece and tool is retained. This means that the depth of cut in the spark-out cycle increases quickly reduced to minimum values, which are only part of the double amplitude caused by vibrations-i relative movement between workpiece and tool. wear. The relative movements have an effect per work piece rotation only by the amount of the depth of cut
309830/081& BAD ORIGINAL309830/081 & BAD ORIGINAL
auf aie Werkstückenerflache aus. Weiterhin findet während der Beschleunigung eine ständige Änderung der Frequenz und der Wellenlänge der Relativbewegung statt. Damit wird das Entstehen von Wellen mit relativ großen Amplituden auf der Werkstückoberfläche verhindert und durch die sich von Werkstückumdrehung zu Werkstückumdrehung ergebende Phasenverschiebung ein kontinuierliches Abtragen der Wellenspitzen von der Werkstückoberfläche erreicht. Insgesamt ergibt sich dadurch eine wesentliche Verbesserung der Oberflächengestalt der Werkstückoberfläche bei gleichbleibender bzw, verkürzter Bearbeitungszeit. on the workpiece surface. Continue to take place during the acceleration a constant change of the frequency and the wavelength of the relative movement takes place. This prevents the creation of waves with relatively large amplitudes on the workpiece surface and a continuous phase shift due to the phase shift resulting from workpiece rotation to workpiece rotation Removal of the shaft tips from the workpiece surface achieved. Overall, this results in a significant improvement in the surface shape of the workpiece surface with the same or reduced processing time.
Die Erfindung soll nachstehend am Beispiel eines Schleifautomaten näher erläutert werden,The invention will be explained in more detail below using the example of an automatic grinding machine,
Dieser Schleifautomat ist mit einer das Werkzeug 4 tragenden Schleifspindel 5 und mit einer das Werkstück 1 mittels Haltevorrichtung tragenden Werkstückspindel 2 ausgerüstet. Der Antrieb der Werkstückspindel 2 erfolgt über Riementrieb durch einen stufenlos regelbaren Gleichstrommotor 3· Während des Bearbeitungsprozesses wird das Istmaß des Werkstückes 1 ständig durch den Heßtaster 6 und das Meßsteuergerät 7 überwacht, liähert sich das Istmaß dem Sollmaß, wird an einem vorbestimmten Lleßsteuerpunkt 8 die Zustellbewegung beendet und der Ausfeuerzyklus beginnt. Unmittelbar danach durchläuft der Meß taster 6 den vorbestimmbaren Ließsteuerpunkt 9 und bewirkt über ein an sich bekanntes Stellsystem 11 eine hohe Beschleunigung der Drehbewegung des Gleichstrommotors 3 und damit eine hohe Beschleunigung der Drehbewegung des Yierkstückes 1 . Diese Beschleunigung wird erst zeitlich nach dem Erreichen des Sollmaßes unterbrochen und die erreichte hohe Drehzahl de^ Gleichstrommotors 3t zweckmäßigerweise während des Werkstückladeprozesses, auf die Ausgangsdrehzahl zurückgestellt.This automatic grinding machine is equipped with a grinding spindle 5 carrying the tool 4 and with a workpiece 1 by means of Holding device carrying workpiece spindle 2 equipped. The work piece spindle 2 is driven by a belt drive by an infinitely variable DC motor 3 · The actual size of the workpiece is determined during the machining process 1 constantly monitored by the push button 6 and the measuring control device 7, the actual dimension approximates the nominal dimension, the feed movement is at a predetermined Lleßsteuerpunkt 8 ends and the spark-out cycle begins. Immediately thereafter, the measuring button 6 passes through the predeterminable Ließsteuerpunkt 9 and causes a known per se Control system 11 a high acceleration of the rotary movement of the direct current motor 3 and thus a high acceleration the turning movement of the Yierkstückes 1. This acceleration is only interrupted after the target dimension has been reached and the high speed achieved by the DC motor 3t expediently during the workpiece loading process, reset to the initial speed.
ORfGiNALORfGiNAL
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD16045172A DD95519A1 (en) | 1972-01-21 | 1972-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2259618A1 true DE2259618A1 (en) | 1973-07-26 |
Family
ID=5485118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722259618 Pending DE2259618A1 (en) | 1972-01-21 | 1972-12-06 | PROCESS TO REDUCE THE INFLUENCE OF VIBRATIONS ON THE QUALITY OF THE WORKPIECE DURING CIRCULAR GRINDING |
Country Status (8)
Country | Link |
---|---|
CH (1) | CH565010A5 (en) |
CS (1) | CS170220B1 (en) |
DD (1) | DD95519A1 (en) |
DE (1) | DE2259618A1 (en) |
FR (1) | FR2174550A5 (en) |
PL (1) | PL78983B1 (en) |
RO (1) | RO60990A (en) |
SU (1) | SU644616A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007113050A1 (en) * | 2006-03-31 | 2007-10-11 | Siemens Aktiengesellschaft | Method of machining a workpiece with alternating spindle speed |
EP2610030A1 (en) * | 2011-12-29 | 2013-07-03 | Ideko, S. Coop | Method of grinding |
CN113878156A (en) * | 2021-10-26 | 2022-01-04 | 衢州职业技术学院 | Safety protection type anti-seismic noise-reducing electromechanical engineering equipment for building construction |
-
1972
- 1972-01-21 DD DD16045172A patent/DD95519A1/xx unknown
- 1972-12-06 DE DE19722259618 patent/DE2259618A1/en active Pending
- 1972-12-29 PL PL15998072A patent/PL78983B1/xx unknown
-
1973
- 1973-01-18 FR FR7301760A patent/FR2174550A5/fr not_active Expired
- 1973-01-19 CH CH79273A patent/CH565010A5/xx not_active IP Right Cessation
- 1973-01-19 CS CS44773A patent/CS170220B1/cs unknown
- 1973-01-19 SU SU731872699A patent/SU644616A1/en active
- 1973-01-20 RO RO7356673A patent/RO60990A/ro unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007113050A1 (en) * | 2006-03-31 | 2007-10-11 | Siemens Aktiengesellschaft | Method of machining a workpiece with alternating spindle speed |
EP2610030A1 (en) * | 2011-12-29 | 2013-07-03 | Ideko, S. Coop | Method of grinding |
CN113878156A (en) * | 2021-10-26 | 2022-01-04 | 衢州职业技术学院 | Safety protection type anti-seismic noise-reducing electromechanical engineering equipment for building construction |
CN113878156B (en) * | 2021-10-26 | 2022-07-19 | 衢州职业技术学院 | Safety protection type antidetonation falls electromechanical engineering equipment of making an uproar for construction |
Also Published As
Publication number | Publication date |
---|---|
FR2174550A5 (en) | 1973-10-12 |
RO60990A (en) | 1976-09-15 |
PL78983B1 (en) | 1975-06-30 |
CS170220B1 (en) | 1976-08-27 |
CH565010A5 (en) | 1975-08-15 |
SU644616A1 (en) | 1979-01-30 |
DD95519A1 (en) | 1973-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |