CH377218A - Method of finishing the surface of timepieces - Google Patents
Method of finishing the surface of timepiecesInfo
- Publication number
- CH377218A CH377218A CH509362A CH509362A CH377218A CH 377218 A CH377218 A CH 377218A CH 509362 A CH509362 A CH 509362A CH 509362 A CH509362 A CH 509362A CH 377218 A CH377218 A CH 377218A
- Authority
- CH
- Switzerland
- Prior art keywords
- finishing
- zones
- moved
- abrasive
- timepieces
- Prior art date
Links
Classifications
-
- 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
- G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/04—Zonally-graded surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Procédé de terminaison de la surface de pièces d'horlogerie La terminaison de la surface de pièces d'horloge rie, notamment le finissage, l'adoucissage ou le po lissage, par exemple de platines et de ponts, est gé néralement réalisée par -passages successifs sur des meules de grains différents. Ces meules sont consti tuées entièrement en matière abrasive ou sont for mées de disques recouverts de papier d'émeri. Ce procédé présente l'inconvénient d'exiger plu sieurs meules sur chacune desquelles l'ouvrier doit faire passer la pièce ce qui entraîne des pertes de temps dues à la manutention.
La présente invention a précisément pour objet un procédé de finissage, d'adoucissage et de polis sage de pièces d'horlogerie, notamment de platines et de ponts, ne présentant pas ces inconvénients. Ce procédé est caractérisé par le fait que l'on passe une même pièce sur un seul disque ou une seule bande de papier abrasif présentant au moins deux zones de grains différents et que l'on soumet cette pièce successivement à l'action de chacune de ces zones.
Les disques de papiers abrasifs permettant la mise en aeuvre de ce procédé présentent de préfé rence des zones concentriques de grains différents. On déplace alors la pièce depuis le centre du disque vers sa périphérie le long de l'un de ses rayons. Les bandes de papiers abrasifs présentent, elles, des zo nes longitudinales disposées côte à côte et en travers desquelles on déplace la pièce.
Ces zones peuvent être de différentes largeurs de manière à permettre à l'ouvrier de passer .sa pièce avec une vitesse uniforme tout en la soumettant à l'action de chaque zone -pendant des durées dif férentes. Ces disques et ces bandes peuvent bien entendu présenter, suivant les cas, des nombres différents de zones. A titre d'exemple on pourrait prévoir pour un poli-miroir une première zone ayant un grain de 320, une seconde de 0, une troisième de 3/0 et une quatrième de grain 4/0 Américain.
Pour un adouci- mat-fin on pourrait prévoir trois zones de grains 1G, 1F, et 320 2/0. Enfin pour un adouci-doux on pourrait prévoir seulement deux zones de grains 0 et 3/0.
Ce procédé permet de n'utiliser qu'une seule meule pour un travail qui en exigeait auparavant plusieurs ; il facilite en outre le travail de l'ouvrier puisque ce dernier n'a plus besoin de choisir lui- même chaque passage mais peut se fier à la disposi- sition des zones sur les disques ou sur les bandes. Enfin ce procédé diminue dans une large mesure les pertes de -temps dues aux manutentions des pièces à usiner.
Method of finishing the surface of timepieces The finishing of the surface of clock parts, in particular the finishing, softening or polishing, for example of plates and bridges, is generally carried out by passing successive on wheels of different grains. These grinding wheels are made entirely of abrasive material or are formed from discs covered with emery paper. This method has the drawback of requiring several grinding wheels over each of which the worker must pass the part, which results in loss of time due to handling.
A specific subject of the present invention is a process for the finishing, softening and polishing of timepieces, in particular plates and bridges, which does not have these drawbacks. This process is characterized by the fact that one passes the same part on a single disc or a single strip of abrasive paper having at least two zones of different grains and that this part is successively subjected to the action of each of these areas.
The abrasive paper discs allowing the implementation of this process preferably have concentric zones of different grains. The part is then moved from the center of the disc to its periphery along one of its radii. The strips of abrasive paper, for their part, have longitudinal zones arranged side by side and through which the part is moved.
These zones can be of different widths so as to allow the worker to pass his workpiece with a uniform speed while subjecting it to the action of each zone -for different durations. These discs and these tapes can of course have, depending on the case, different numbers of zones. By way of example, a first zone with a grain of 320, a second of 0, a third of 3/0 and a fourth of American 4/0 grain could be provided for a mirror polish.
For a fine-softening, three zones of grains 1G, 1F, and 320 2/0 could be provided. Finally, for a sweetness, only two areas of 0 and 3/0 grains could be provided.
This process makes it possible to use only one grinding wheel for a job which previously required several; it also facilitates the work of the worker since he no longer needs to choose each passage himself but can rely on the layout of the zones on the discs or on the tapes. Finally, this process reduces to a large extent the losses of time due to the handling of the parts to be machined.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH509362A CH377218A (en) | 1962-04-29 | 1962-04-29 | Method of finishing the surface of timepieces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH509362A CH377218A (en) | 1962-04-29 | 1962-04-29 | Method of finishing the surface of timepieces |
Publications (1)
Publication Number | Publication Date |
---|---|
CH377218A true CH377218A (en) | 1964-04-30 |
Family
ID=4287805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH509362A CH377218A (en) | 1962-04-29 | 1962-04-29 | Method of finishing the surface of timepieces |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH377218A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997006928A1 (en) * | 1995-08-11 | 1997-02-27 | Minnesota Mining And Manufacturing Company | Abrasive article and method of making such article |
WO1997006927A1 (en) * | 1995-08-11 | 1997-02-27 | Minnesota Mining And Manufacturing Company | Method of texturing a substrate using an abrasive article having multiple grit particles |
US6080215A (en) * | 1996-08-12 | 2000-06-27 | 3M Innovative Properties Company | Abrasive article and method of making such article |
-
1962
- 1962-04-29 CH CH509362A patent/CH377218A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997006928A1 (en) * | 1995-08-11 | 1997-02-27 | Minnesota Mining And Manufacturing Company | Abrasive article and method of making such article |
WO1997006926A1 (en) * | 1995-08-11 | 1997-02-27 | Minnesota Mining And Manufacturing Company | Method of making a coated abrasive article having multiple abrasive natures |
WO1997006927A1 (en) * | 1995-08-11 | 1997-02-27 | Minnesota Mining And Manufacturing Company | Method of texturing a substrate using an abrasive article having multiple grit particles |
US6277160B1 (en) | 1995-08-11 | 2001-08-21 | 3M Innovative Properties Company | Abrasive article and method of making such article |
US6080215A (en) * | 1996-08-12 | 2000-06-27 | 3M Innovative Properties Company | Abrasive article and method of making such article |
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