EP2753984A1 - Procédé d'ajustement en fréquence d'oscillation d'un ensemble balancier-spiral - Google Patents
Procédé d'ajustement en fréquence d'oscillation d'un ensemble balancier-spiralInfo
- Publication number
- EP2753984A1 EP2753984A1 EP12759076.8A EP12759076A EP2753984A1 EP 2753984 A1 EP2753984 A1 EP 2753984A1 EP 12759076 A EP12759076 A EP 12759076A EP 2753984 A1 EP2753984 A1 EP 2753984A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- balance
- inertia
- machining
- spirals
- production
- 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
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
- G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
- G04D7/1271—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork)
- G04D7/1292—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork) whereby the adjustment device works on the balance wheel
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B18/00—Mechanisms for setting frequency
- G04B18/006—Mechanisms for setting frequency by adjusting the devices fixed on the balance
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
- G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
- G04D7/085—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing by removing material from the balance wheel itself
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49579—Watch or clock making
- Y10T29/49581—Watch or clock making having arbor, pinion, or balance
Definitions
- the invention relates to a method for adjusting the oscillation frequency of a pendulum-balance spring assembly randomly formed among the totality of a production of spirals and a production of pendulums.
- the invention relates to the field of the manufacture of watch components, and in particular to the manufacture of regulating assemblies, and the operation of their adjustment of frequency adjustment.
- Frequency adjustment accuracy naturally depends on the magnitude of each of the spirals and pendulum classes, which explains their high number.
- the invention proposes to eliminate these extremely expensive work in progress, and to set up a new process which makes it possible to manufacture, extremely quickly and economically, balance-balance assemblies correctly adjusted to an oscillation frequency. given.
- the invention also proposes to deal at the same time with the balancing problem necessary for the pendulums.
- the invention relates to a method for adjusting the oscillation frequency of a pendulum balance-hairspring assembly randomly selected from the totality of a production of spirals and a production of pendulums, characterized in that, to get rid of any classification of pendulums and spirals:
- the means for producing said spirals are set to a predetermined average value, and these means for producing said spirals are adjusted so as to limit the standard deviation of said spiral production to a predetermined maximum value,
- the production means of said balances are adjusted to a predetermined average value, and these means of production of said balances are adjusted to limit the standard deviation of said rocker production to a predetermined maximum value, and within a given unbalance tolerance for said total population of rockers,
- the manufacturing parameters are determined according to the normal production laws of said balance wheels and said spirals in order to qualify said average of said population of rockers, as a function of said average of said population of spirals, so that there remains a difference corresponding to a maximum permitted inertia decrease value for each said balance, between the extreme values of:
- a balancing adjustment machining operation is performed to bring said balancing beam into a given balancing tolerance, and performing a complementary inertia adjustment operation, as a function of the value of the pair of said balance spring. taken,
- Figure 1 is a single schematic representation of the statistical distribution of the total population of spirals and the total population of rockers in the implementation of the invention.
- the invention relates to a method for adjusting the oscillation frequency of a pendulum-spiral clockwork assembly.
- This pendulum balance-hairspring assembly is randomly constituted among the totality of a production of spirals and a production of pendulums.
- the means for producing the spirals are set to a predetermined mean value ms, and these spiral production means are set to limit the standard deviation a from the production of spirals to a predetermined maximum value asMax,
- the balancing means are adjusted to a predetermined average value mb, and these balancing means are adjusted to limit the standard deviation ab of the rocker production to a predetermined maximum value abMax, and within a tolerance of unbalance given for the total population of pendulums,
- the manufacturing parameters are determined according to the normal production laws of the balances and spirals in order to qualify the average mb of the population of pendulums, as a function of the average ms of the spiral population, so that it remains a difference corresponding to a maximum value of decrease of inertia allowed for each balance, between the extreme values of:
- a balancing adjustment machining of the withdrawn by-balance is carried out to bring it into a given balancing tolerance, and a complementary operation of adjustment of inertia is carried out, as a function of the value of the torque of the spiral Sx taken,
- the advantage of the invention is to take a spiral from the entire spiral population, without having to decompose this total spiral population into classes, as in the prior art. It is the same for the removal of a pendulum, which is performed randomly among the entire production. Work-in-progress is, therefore, limited to a single production of spirals, and to a unique production of pendulums.
- the inertia adjustment operation consists in performing simultaneously or successively: a balancing adjustment machining of the balance taken By to bring it within a given balancing tolerance if the balance of the balance taken By is greater than the given balancing tolerance, and
- the difference corresponding to a permitted decrease of inertia for each pendulum is limited to the maximum value of the unbalance tolerance.
- a machining is carried out by removal of material on the By balance for a first inertia setting without balancing, then, after a measurement of the balance By balance and a calculation of machining definition, a balancing and second inertia machining at a value calculated so that the Sx-By spiral balance assembly oscillates at the oscillation frequency NO.
- Any machining by removal of material can here be performed by laser, milling, turning, or other.
- machining is carried out by removal of material on the balance By by reserving certain first surfaces of the balance beam By this first machining setting inertia, and reserving some second surfaces of the By balance to this balancing machining and second setting of inertia.
- the first surfaces are determined as distinct from the second surfaces of the By balance.
- the first surfaces and the second surfaces of the By balance are defined at least by prohibiting any machining in certain third zones of the By balance reserved for lightening zones or for the reception of balancing weights or reported components.
- the first surfaces and the second surfaces of the balance wheel By are defined at least by prohibiting any machining on the arms of the By balance.
- balancing adjustment machining is carried out symmetrically with respect to a plane passing through the axis of pivoting of the balance beam By and in the vicinity of this plane.
- At least the first inertial machining is carried out symmetrically with respect to the axis of pivoting of the By beam.
- the volume of material to be removed in each machining zone is calculated, and the flow rate of material is distributed over a sufficient area to respect predefined minimum sections in the various zones of the By beam, to prevent any problem of fatigue resistance.
- the volume of material to be removed in each machining zone is calculated so as not to exceed a certain predefined mass flow rate with respect to the total weight of the By balance, and the flow is distributed of matter at sufficiently far away from the axis of pivoting of the balance By to reach the calculated value of inertia for the balance By.
- n-order symmetry machining is performed.
- a primary frequency-related primary amplitude AP corresponding to a relative variation of the reference period VRO, is defined and tolerance:
- the second domain of distribution of the relative period variations of which the pendulums extending beyond the first domain of distribution of the relative period variations of which the spirals are capable with, between second domain and the first domain, a gap which is multiple in a third factor k3 of the primary amplitude AP, and, between the balance and the spiral theoretically the most distant as to their category of relative period variation, a multiple difference in a fourth factor k4 of the primary amplitude AP.
- the fourth factor k4 is defined to be close to double the value of the first factor k1, which is itself close to twice the value of the second factor k2, which is close to four times the value third factor k3.
- the third factor k3 is defined at a value of two.
- the primary amplitude AP corresponding to a relative variation of reference period VRO close to 100 seconds per day is defined.
- the difference between the second domain and the first domain which is multiple in the third factor k3 of the primary amplitude AP, is used to effect a balancing adjustment of the byte beam taken at hazard.
- the balancing adjustment of the By beam taken at random by removal of material is carried out, and in that the inertia adjustment of the By balance is carried out to form a balance spring-spiral Sx assembly.
- the oscillation frequency N0 as a function of the measured torque of the spiral Sx, also by removal of material.
- the invention makes it possible to drastically reduce work in progress. It makes it possible to dispose almost instantaneously of a balance-spiral set tuned to a particular frequency, with a great reliability and a great precision.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
- Springs (AREA)
- Manufacture Of Motors, Generators (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12759076.8A EP2753984B1 (fr) | 2011-09-05 | 2012-09-05 | Procédé d'ajustement en fréquence d'oscillation d'un ensemble balancier-spiral |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11180071A EP2565727A1 (fr) | 2011-09-05 | 2011-09-05 | Procédé de constitution d'un ensemble balancier-spiral d'horlogerie et d'ajustement en fréquence d'oscillation |
| EP12759076.8A EP2753984B1 (fr) | 2011-09-05 | 2012-09-05 | Procédé d'ajustement en fréquence d'oscillation d'un ensemble balancier-spiral |
| PCT/EP2012/067327 WO2013034597A1 (fr) | 2011-09-05 | 2012-09-05 | Procédé d'ajustement en fréquence d'oscillation d'un ensemble balancier-spiral |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2753984A1 true EP2753984A1 (fr) | 2014-07-16 |
| EP2753984B1 EP2753984B1 (fr) | 2017-11-01 |
Family
ID=46851447
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11180071A Withdrawn EP2565727A1 (fr) | 2011-09-05 | 2011-09-05 | Procédé de constitution d'un ensemble balancier-spiral d'horlogerie et d'ajustement en fréquence d'oscillation |
| EP12759076.8A Active EP2753984B1 (fr) | 2011-09-05 | 2012-09-05 | Procédé d'ajustement en fréquence d'oscillation d'un ensemble balancier-spiral |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11180071A Withdrawn EP2565727A1 (fr) | 2011-09-05 | 2011-09-05 | Procédé de constitution d'un ensemble balancier-spiral d'horlogerie et d'ajustement en fréquence d'oscillation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9690260B2 (fr) |
| EP (2) | EP2565727A1 (fr) |
| JP (1) | JP5848450B2 (fr) |
| CN (1) | CN103917925B (fr) |
| IN (1) | IN2014CN02336A (fr) |
| RU (1) | RU2557351C1 (fr) |
| WO (1) | WO2013034597A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6254584B2 (ja) * | 2012-06-26 | 2017-12-27 | ロレックス・ソシエテ・アノニムRolex Sa | 振動体の不釣合い特性の確定方法 |
| WO2015132259A2 (fr) * | 2014-03-03 | 2015-09-11 | Richemont International Sa | Methode d'appairage d'un balancier et d'un spiral dans un organe regulateur |
| JP6549251B2 (ja) * | 2015-06-03 | 2019-07-24 | ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス | 緩急針アセンブリによる微調整を有する共振器 |
| CH711962B1 (fr) | 2015-12-18 | 2017-10-31 | Csem Centre Suisse D'electronique Et De Microtechnique Sa – Rech Et Développement | Procédé de fabrication d'un spiral d'une raideur prédéterminée avec retrait localisé de matière. |
| EP3181938B1 (fr) * | 2015-12-18 | 2019-02-20 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Procede de fabrication d'un spiral d'une raideur predeterminee par retrait de matiere |
| EP3629103B1 (fr) * | 2018-09-28 | 2021-05-12 | The Swatch Group Research and Development Ltd | Pièce d'horlogerie comprenant un mouvement mécanique dont la marche est régulée par un dispositif électronique |
| CH716605A1 (fr) | 2019-09-16 | 2021-03-31 | Richemont Int Sa | Procédé de fabrication d'une pluralité de résonateurs sur une plaquette. |
| EP4030243B1 (fr) * | 2021-01-18 | 2024-09-25 | Richemont International S.A. | Procédé de controle et de fabrication de ressorts spiraux d' horlogerie |
| EP4557020A1 (fr) * | 2023-11-20 | 2025-05-21 | Nivarox-FAR S.A. | Procédé de fabrication d'un oscillateur balancier-spiral pour spiraux à forte variation de couple |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2554033A (en) * | 1949-09-10 | 1951-05-22 | Kohlhagen Walter | Method for balancing oscillating or rotating members |
| US2745287A (en) * | 1951-10-09 | 1956-05-15 | Kohlhagen Walter | Method of balancing rotary members |
| US2698509A (en) * | 1951-11-23 | 1955-01-04 | Rhodes Inc M H | Balance spring for clockwork mechanisms |
| US2770942A (en) * | 1953-03-03 | 1956-11-20 | Elgin Nat Watch Co | Horological balance with adjustable moment of inertia |
| JPS499990B1 (fr) * | 1969-09-05 | 1974-03-07 | ||
| JPS5322863B2 (fr) * | 1972-03-27 | 1978-07-11 | ||
| CH1622773A4 (fr) * | 1973-01-20 | 1977-02-15 | ||
| JP2000125410A (ja) * | 1998-10-15 | 2000-04-28 | Mitsubishi Electric Corp | 電気自動車の制御装置 |
| TW497015B (en) * | 2000-12-07 | 2002-08-01 | Ebauchesfabrik Eta Ag | Method for adjusting the oscillation frequency of a sprung balance for a mechanical timepiece |
| ATE557328T1 (de) * | 2004-10-26 | 2012-05-15 | Lvmh Swiss Mft Sa | Chronographmodul für armbanduhr |
| CH702708B1 (fr) * | 2007-04-27 | 2011-08-31 | Sigatec S A | Ensemble oscillateur balancier-spiral avec éléments détachables et procédé d'ajustement de sa fréquence d'oscillation. |
| EP2423764B1 (fr) * | 2010-08-31 | 2013-03-27 | Rolex S.A. | Dispositif pour la mesure du couple d'un spiral |
-
2011
- 2011-09-05 EP EP11180071A patent/EP2565727A1/fr not_active Withdrawn
-
2012
- 2012-09-05 EP EP12759076.8A patent/EP2753984B1/fr active Active
- 2012-09-05 WO PCT/EP2012/067327 patent/WO2013034597A1/fr not_active Ceased
- 2012-09-05 RU RU2014113313/28A patent/RU2557351C1/ru active
- 2012-09-05 JP JP2014527702A patent/JP5848450B2/ja active Active
- 2012-09-05 IN IN2336CHN2014 patent/IN2014CN02336A/en unknown
- 2012-09-05 US US14/239,965 patent/US9690260B2/en active Active
- 2012-09-05 CN CN201280042913.9A patent/CN103917925B/zh active Active
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2013034597A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014CN02336A (fr) | 2015-06-19 |
| EP2565727A1 (fr) | 2013-03-06 |
| US20140157601A1 (en) | 2014-06-12 |
| JP2014527636A (ja) | 2014-10-16 |
| HK1199503A1 (en) | 2015-07-03 |
| CN103917925A (zh) | 2014-07-09 |
| CN103917925B (zh) | 2016-09-14 |
| EP2753984B1 (fr) | 2017-11-01 |
| RU2557351C1 (ru) | 2015-07-20 |
| US9690260B2 (en) | 2017-06-27 |
| JP5848450B2 (ja) | 2016-01-27 |
| WO2013034597A1 (fr) | 2013-03-14 |
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