EP2671676B1 - System zur Fertigbearbeitung eines aus mehreren Materialien geformten Werkstücks - Google Patents

System zur Fertigbearbeitung eines aus mehreren Materialien geformten Werkstücks Download PDF

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Publication number
EP2671676B1
EP2671676B1 EP13166881.6A EP13166881A EP2671676B1 EP 2671676 B1 EP2671676 B1 EP 2671676B1 EP 13166881 A EP13166881 A EP 13166881A EP 2671676 B1 EP2671676 B1 EP 2671676B1
Authority
EP
European Patent Office
Prior art keywords
satin
abrasive
abrasive means
tank
approximation
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.)
Active
Application number
EP13166881.6A
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English (en)
French (fr)
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EP2671676A1 (de
Inventor
Jean-Mary Hawrylko
Hubert Gauthier
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.)
Comadur SA
Original Assignee
Comadur SA
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 Comadur SA filed Critical Comadur SA
Priority to EP13166881.6A priority Critical patent/EP2671676B1/de
Publication of EP2671676A1 publication Critical patent/EP2671676A1/de
Application granted granted Critical
Publication of EP2671676B1 publication Critical patent/EP2671676B1/de
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Classifications

    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B24B31/064—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers the workpieces being fitted on a support
    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
    • B24B31/116—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/02—Frames; Beds; Carriages

Definitions

  • the invention relates to a system for finishing a part formed from several materials and, more particularly, such a part in which each material has a different hardness.
  • a system is for example known from the document EP 0073536-A2 , representing the preamble of claim 1.
  • the aim of the present invention is to overcome all or part of the drawbacks mentioned above by providing a system for finishing a part formed from several materials which allows the selective satin-finishing of one or more of the materials with great homogeneity.
  • the invention relates to a system for satin-finishing a part comprising at least two materials of different hardnesses, the system comprising at least one receiving device serving as a container for abrasive means comprising a hardness between those of said at least two materials of different hardnesses, a support device comprising means for fixing the part, means for bringing the part closer to the abrasive means and means for relative movement of the part with respect to the receiving device, said relative displacement forming the directions of the satin lines characterized in that each receiving device comprises a tank containing said abrasive means in powder form and in that the tank is elastic in order to block said abrasive means in powder form between the tank and the part even under the constraint of the approximation means while guaranteeing optimum satin finish of said at least one material having the lowest hardness without modifying the appearance of said at least one material having the greatest hardness.
  • the part formed from several materials according to the invention can in particular be integrated into or form all or part of the covering of a timepiece without distinction.
  • it could form all or part of a case, a bracelet, a bezel, a dial, a crystal, a push-piece and / or a crown.
  • the bezel 1 comprises a body 3 in a first material which is inlaid by at least one decoration 5, 7, 9, 11, 13 in one or more other materials.
  • the bezel 1 is intended to form a part which is very resistant to wear, the visual quality of which is improved, in particular in terms of contrast.
  • each decoration can, advantageously according to the invention, be of any shape, such as, for example, a geometric figure 7, 9, 11, an alphanumeric character 5 or even a phosphorescent indicator 13.
  • the body 3 is preferably made of a first hard material, that is to say of a hardness greater than 800 Hv, such as for example a ceramic.
  • the first material can, by way of example, comprise an oxide, a carbide or a nitride based on aluminum, titanium, zirconium or silicon to form all or part of the body 3. Of course, other materials hard are possible.
  • the second material or the other materials used for the decorations 5, 7, 9, 11, 13 are of lower hardness than the first material.
  • the invention relates to a finishing system 21 of such a part 1, each material of which has a different hardness.
  • the system 21 advantageously makes it possible to satinize the material or materials having the lowest hardness without modifying the appearance of the material having the highest hardness.
  • the other less hard materials can be a composite ceramic, a glass, an enamel, a metal or a metal alloy.
  • the finishing system 21 comprises at least one receiving device 23, 23 'serving as a container for abrasive means 20 and a support device 25 comprising means 22 for fixing the part 1.
  • the system 21 further comprises means 27 for bringing the part 1 closer to said abrasive means 20 and means 29 for relative displacement of the part 1 with respect to the receiving device 23 along the lines desired satin finish.
  • the approximation means 27 and the relative displacement means 29 can be mounted either on the support device 25 or on the receiving device 23.
  • the approximation means 27 and the relative displacement means 29 are mounted on the support device 25.
  • Each receiving device 23, 23 ' comprises a tank 24, 24' containing said abrasive means 20 in powder form in which the approximation means 27 at least partially immerse the part 1.
  • the powder of abrasive means 20 is formed by particles whose hardness is greater than the material (s) to be satin-finished but less than the material (s) to be left intact.
  • part 1 will therefore be polished prior to its finishing using the system 21. It will be understood that only part of part 1 will have its surface condition modified, that is to say that at least one of the materials used will not be altered on the surface.
  • the particles the diameter of which may be between 0.3 mm and 1 mm, may be formed from silica and / or corundum and / or pumice and / or diamond and / or nitrides and / or carbides and / or alumina.
  • the approximation means 27 exerts a force sufficient to immerse a part of the part 1 in the powder of abrasive means 20.
  • the tank 24, 24 ' is elastic in order to adapt to the level of powder in the tank 24, 24 'relative to the force imposed by the means 27 of approximation.
  • the tank 24, 24 'thus exerts a counter-force B intended to press the powder 20 between the tank 24, 24' and the part 1.
  • a rigid tank allowed the powder to move and cover the part 1, making the finishing imperfect. It is therefore understood that, thanks to the elastic tank 24, 24 ′, the powder 20, advantageously, does not cover the whole of the part 1 even under the stress of the means 27 for bringing together while guaranteeing optimum finishing.
  • each receiving device 23, 23 'further comprises means 26, 26' for vibrating the tank 24, 24 'making it possible to renew the upper layer of the powder when the means 27 of approach separate the part 1 from the abrasive means 20.
  • the upper layers of particles present in the tank 24, 24 'having participated in the finishing have seen their diameter decrease. Consequently, during the vibrations C, these smaller particles are mechanically displaced towards the bottom of the tank 24, 24 '.
  • the powder at the surface is renewed by particles of larger diameters, that is to say not blunt.
  • the fixing means 22 of the support device 25 comprise a fastener 30 formed of three movable fingers approaching to hold a part 1.
  • This fastener 30 is mechanically connected to the approximation means 27.
  • the approximation means 27 comprise an actuator 28 making it possible to press the part 1 against the abrasive means 20 in the direction D in order to provide a force A against the abrasive means 20 necessary for the finishing.
  • the actuator 28 exerts a force of between 1 and 5 kg.
  • the relative displacement means 29 comprise a motor 31, which may belong to the actuator 28 of the approximation means 27, allowing the part to impart a back and forth movement E against the abrasive means 20 along said desired satin lines.
  • the satin lines will be concentric.
  • the back-and-forth movement E will then be an alternation of trigonometric and retrograde rotations.
  • a simple rotation made the finishing less homogeneous.
  • Such a back and forth movement E can be exerted over an amplitude of between 5 and 20 mm depending on the size of the part 1.
  • the motor of the relative displacement means will induce a back-and-forth movement E in translation.
  • a finishing process according to the invention therefore follows the following steps. First, a part 1 comprising at least two materials of different hardnesses is manufactured and then at least one of the faces is polished. Secondly, the part 1 is mounted on the fastener 30 of the fixing means 22, the polished surface being intended to come into contact with the abrasive means 20. Thirdly, the approximation means 27 are activated according to the movement D until part 1 touches the abrasive means 20.
  • the approximation means 27 exert a force between the part 1 and the abrasive means 20 necessary for the satin finish.
  • the abrasive means 20 in powder form are blocked by this force and the elastic counter-force B of the tank 24.
  • the relative displacement means 29 are also activated according to the invention.
  • the fourth beat may take a few seconds to obtain a satisfactory satin finish.
  • the approximation means 27 and the relative displacement means 29 are deactivated in order to move the part 1 away from the abrasive means 20.
  • the vibration means 26 are activated in order to renew the upper layer of the abrasive means. abrasive means 20 in powder form.
  • the fifth beat may take a few seconds to obtain a satisfactory renewal.
  • a new cycle is started with a new part or with the same part, i.e. starting from the first beat or from the third beat.
  • the finishing system 21 comprises two reception devices 23, 23 '.
  • This embodiment is preferred in order to gain in productivity. Indeed, as visible at the figure 3 , while a part 1 is worked using a first receiving device 23, the second receiving device 23 'can be renewed by abrasive means. Thus, the new cycle explained above is initiated with the aid of the carriage 33 which will move the plate 32 so that the second device 23 'is positioned opposite the support device 25.
  • the time necessary to satin-finish the zones is always the same regardless of the number of zones to be satin-finish on the same part.
  • the lines are perfectly homogeneous with respect to each other whether they are curved or linear.
  • each system 21 can include more or less reception devices 23, 23 'and / or more or less support devices 25 without these embodiments going beyond the scope of the invention.
  • the same finishing system 21 could comprise two support devices 25 making it possible to finish two pieces simultaneously and six receiving devices 23, 23 'with three different types of abrasive means 20 used mounted on a single movable plate 32. by a trolley 33.
  • the abrasive means must be adapted. They cannot be limited to the materials mentioned in the present description.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (10)

  1. System (21) zum Satinieren eines Werkstücks (1) aus mindestens zwei Materialien unterschiedlicher Härten, wobei das System (21) umfasst:
    - mindestens eine Aufnahmevorrichtung (23, 23'), die Schleifmittel (20) enthält mit einer Härte, die höher ist als jene des mindestens einen zu satinierenden Materials, jedoch niedriger ist als jene des mindestens einen anderen unverändert zu belassenden Materials der mindestens zwei Materialien mit unterschiedlicher Härte,
    - eine Haltevorrichtung (25), die Mittel (22) zum Befestigen des Werkstücks (1) umfasst,
    - Mittel (27) zum Heranführen des Werkstücks (1) an das Schleifmittel (20) und
    - Mittel (29) zum relativen Versetzen des Werkstücks (1) in Bezug auf die Aufnahmevorrichtung (23), wobei das relative Versetzen die Richtungen der Satinierungslinien bildet,
    - wobei jede Aufnahmevorrichtung (23, 23') eine Wanne (24, 24') umfasst, die das Schleifmittel (20) in Form von Pulver enthält, dadurch gekennzeichnet, dass
    die Wanne (24, 24') federnd ist, damit das Schleifmittel (20) in Form von Pulver selbst dann zwischen der Wanne (24, 24') und dem Werkstück (1) zu finden ist, wenn das Schleifmittel durch die Heranführungsmittel (27) einer Beanspruchung ausgesetzt wird, wobei ein optimales Satinieren des mindestens einen zu satinierenden Materials gewährleistet wird, ohne das Erscheinungsbild des mindestens einen anderen unverändert zu belassenden Materials abzuändern, und
    - das Mittel (29) zum relativen Versetzen so konfiguriert ist, dass es die Richtungen der Satinierungslinien, die geradlinig oder konzentrisch sind, ausbildet.
  2. System (21) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Partikel einen Durchmesser im Bereich von 0,3 mm bis 1 mm besitzen.
  3. System (21) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Schleifmittel (20) aus Kieselsäure und/oder Korund und/oder Bimsstein und/oder Diamant und/oder Nitriden und/oder Carbiden und/oder Aluminiumoxid gebildet ist.
  4. System (21) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jede Aufnahmevorrichtung (23, 23') ferner Mittel (26, 26') zum Versetzen der Wanne (24, 24') in Schwingungen umfasst, was ermöglicht, die obere Schicht des Schleifmittels (20) durchzuwechseln, wenn die Heranführungsmittel (27) das Werkstück (1) vom Schleifmittel (20) beabstanden.
  5. System (21) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Heranführungsmittel (27) einen Aktuator (28) umfassen, der ermöglicht, das Werkstück (1) gegen das Schleifmittel (20) zu drücken.
  6. System (21) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Aktuator (28) der Heranführungsmittel (27) so konfiguriert ist, dass er eine Kraft im Bereich von 1 kgf [9,8 N] bis 5 kgf [49,1 N] ausübt.
  7. System (21) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel (29) zum relativen Versetzen einen Motor (31) umfassen, der so konfiguriert ist, dass er eine Beaufschlagung des Werkstücks (1) mit einer hin und her gehenden Bewegung (E) gegen das Schleifmittel (20) in den Richtungen der Satinierungslinien ermöglicht, um die Satinierung homogener zu machen.
  8. System (21) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es mindestens zwei Aufnahmevorrichtungen (23, 23') umfasst, um das Schleifmittel einer Aufnahmevorrichtung zu erneuern, während die andere Vorrichtung verwendet wird, um an dem Werkstück eine Endbearbeitung vorzunehmen.
  9. System (21) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die mindestens zwei Vorrichtungen (23, 23') auf einer Platte (32) montiert sind, die mithilfe eines Schlittens (33) versetzbar sind, um wahlweise eine der mindestens zwei Vorrichtungen gegenüber der Haltevorrichtung (25) zu positionieren.
  10. System (21) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Werkstück (1) ein Verkleidungselement einer Uhr ist.
EP13166881.6A 2012-06-07 2013-05-07 System zur Fertigbearbeitung eines aus mehreren Materialien geformten Werkstücks Active EP2671676B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13166881.6A EP2671676B1 (de) 2012-06-07 2013-05-07 System zur Fertigbearbeitung eines aus mehreren Materialien geformten Werkstücks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12171178 2012-06-07
EP13166881.6A EP2671676B1 (de) 2012-06-07 2013-05-07 System zur Fertigbearbeitung eines aus mehreren Materialien geformten Werkstücks

Publications (2)

Publication Number Publication Date
EP2671676A1 EP2671676A1 (de) 2013-12-11
EP2671676B1 true EP2671676B1 (de) 2021-04-28

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EP13166881.6A Active EP2671676B1 (de) 2012-06-07 2013-05-07 System zur Fertigbearbeitung eines aus mehreren Materialien geformten Werkstücks

Country Status (5)

Country Link
US (1) US9227292B2 (de)
EP (1) EP2671676B1 (de)
JP (1) JP5628970B2 (de)
CN (1) CN103481177B (de)
RU (1) RU2663658C2 (de)

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Publication number Priority date Publication date Assignee Title
JP2019171541A (ja) * 2018-03-29 2019-10-10 本田技研工業株式会社 ワーク研磨装置およびこの装置を用いたワーク研磨方法

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Also Published As

Publication number Publication date
RU2663658C2 (ru) 2018-08-08
US20130331007A1 (en) 2013-12-12
CN103481177B (zh) 2016-10-12
JP5628970B2 (ja) 2014-11-19
US9227292B2 (en) 2016-01-05
EP2671676A1 (de) 2013-12-11
JP2013252606A (ja) 2013-12-19
RU2013126142A (ru) 2014-12-20
CN103481177A (zh) 2014-01-01

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