CN114779602B - Manufacturing process of precious metal solid watch case - Google Patents

Manufacturing process of precious metal solid watch case Download PDF

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Publication number
CN114779602B
CN114779602B CN202210481175.3A CN202210481175A CN114779602B CN 114779602 B CN114779602 B CN 114779602B CN 202210481175 A CN202210481175 A CN 202210481175A CN 114779602 B CN114779602 B CN 114779602B
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China
Prior art keywords
rough blank
driving
blank
rough
die
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CN202210481175.3A
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Chinese (zh)
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CN114779602A (en
Inventor
毛笑韩
洪巨亚
杨强
叶国光
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Dongguan Tangxia Taixing Watch Manufacturing Co ltd
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Dongguan Tangxia Taixing Watch Manufacturing Co ltd
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Priority to CN202210481175.3A priority Critical patent/CN114779602B/en
Publication of CN114779602A publication Critical patent/CN114779602A/en
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Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/22Materials or processes of manufacturing pocket watch or wrist watch cases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06Melting-down metal, e.g. metal particles, in the mould
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/14Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • C23C14/16Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • C23C14/165Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon by cathodic sputtering
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/35Sputtering by application of a magnetic field, e.g. magnetron sputtering

Abstract

The application relates to the technical field of watch case processing, in particular to a precious metal solid watch case manufacturing process, which has the technical scheme that: 1. designing a blank diagram of a product to be processed, and designing a die according to the blank diagram; 2. cutting noble metal into metal particles, mounting a die on a rough blank machine, mechanically connecting the die with the rough blank, and delivering the metal particles into the die; 3. heating metal particles in a die to form molten metal; 4. filling inert gas into the cavity until the molten metal is cooled to normal temperature; 5. taking the rough blank out of the die cavity, and polishing the rough blank; 6. forming inlay holes on the rough blank by using a perforating machine; 7. plating a layer of titanium film on the outer surface of the rough blank; 8. pressing jade into the rough blank, and then engraving the rough blank; 9. and (5) putting the rough blank into a centrifugal polishing machine for polishing to obtain the finished watch case. The application has the effect of meeting the manufacturing requirement of the watch case made of precious metal and jade.

Description

Manufacturing process of precious metal solid watch case
Technical Field
The application relates to the technical field of watch case processing, in particular to a manufacturing process of a precious metal solid watch case.
Background
The case is generally a casing part of the watch body, which serves to house and protect the internal parts of the watch, divided according to the material, and can be divided into: stainless steel watch case, tungsten steel watch case, ceramic watch case, aluminum watch case, copper watch case, plastic watch case, etc.
In the related art, a reverse mold is generally adopted to produce a noble metal watch case, a mold which is suitable for the noble metal watch case is required to be manufactured by using gypsum, then the metal is heated to be solid, then the metal is injected into the mold by using an injection mode, after the metal is cooled, the formed metal is taken out of the mold, and then polishing is carried out, so that the production of a finished product is realized.
With respect to the related art in the above, the inventors considered that the above production method has a good productivity for a case made of a single metal, however, the above method is difficult to be applied to the manufacture of a case made of a noble metal together with jade.
Disclosure of Invention
In order to meet the manufacturing requirement of a watch case made of precious metal and jade, the application provides a manufacturing process of a precious metal solid watch case.
The application provides a noble metal solid watch case manufacturing process which adopts the following technical scheme:
a manufacturing process of a precious metal solid watch case is implemented according to the following steps:
step one: designing a blank diagram of a product to be processed, designing a die according to the blank diagram, and calculating the quality M of the product blank;
Step two: cutting noble metal into metal particles, mounting a die on a rough blank machine, electrically connecting the die with the rough blank, and delivering the metal particles into a cavity in the die from a feed opening of the die according to the mass M;
Step three: heating the metal particles in the die into molten metal, and keeping the air pressure in the cavity to be 0.5atm-0.8atm in the heating process;
step four: after stopping heating, filling inert gas into the cavity until the molten metal is cooled to normal temperature, so that the metal particles form a rough blank in the cavity;
Step five: taking the rough blank out of the die cavity, primarily polishing the rough blank, and then annealing the rough blank; cutting jade into proper size, and then carrying out rough engraving on the jade;
Step six: forming inlay holes on the rough blank by using a perforating machine, and then annealing the rough blank;
step seven: plating a layer of titanium film on the outer surface of the rough blank by a magnetron sputtering method;
Step eight: pressing jade into the rough blank, and then engraving the rough blank;
Step nine: and (5) putting the rough blank into a centrifugal polishing machine for polishing to obtain the finished watch case.
By adopting the technical scheme, the noble metal is placed in the mould in a solid state, and is heated in the mould to be in a liquid state, so that the forming time of the noble metal is reduced, the forming speed of the noble metal is accelerated, the forming volume of the noble metal at a water gap of the mould is reduced, and the subsequent loss of the noble metal caused by processing the water gap of the noble metal is reduced; by keeping the air pressure in the cavity between 0.5atm and 0.8atm, the bubbles in the liquid noble metal can escape, which is beneficial to reducing the bubbles in the rough blank formed later; by filling inert gas into the cavity, the solidification of the liquid noble metal is accelerated, and the contact between the liquid noble metal and air in the cooling process is reduced, so that the possibility of oxidizing the liquid noble metal at high temperature is reduced; the precious metal is perforated, and the jade is pressed into the precious metal, so that the manufacturing requirement of the watch case made of the precious metal and the jade together is met; the precious metal and the watchcase are polished by using the polishing machine, so that the requirement of the surface flatness of the watchcase can be met.
Preferably, the seventh step includes the steps of:
A: coating fire paint on the open holes of the rough blank, and shielding the open holes of the rough blank by using the fire paint;
B: placing the rough blank into a coating chamber, and coating the rough blank for the first time;
C: and detecting the thickness of the rough blank after the first coating, polishing the rough blank with the thickness larger than the design standard again, and performing the second coating on the rough blank with the thickness smaller than the design standard, so as to remove the fire paint on the rough blank meeting the design standard.
By adopting the technical scheme, the surface of the rough blank is plated with titanium, so that the contact between the noble metal watchcase and the air is reduced, the oxidation of noble metal is reduced, the surface hardness of the noble metal watchcase is improved, and the occurrence of scratching of the noble metal watchcase in daily use is reduced; shielding the open hole of the rough blank by using fire paint, and reducing hardening of the open hole of the rough blank caused by covering of a titanium film, so that the jade is inconvenient to press and mount on the rough blank; in addition, the rough blank is treated in a mode of repeated film coating and repeated polishing, so that the surface flatness of the rough blank is improved.
Preferably, the step nine includes the steps of:
A: placing the rough blank into a small barrel of a centrifugal finishing machine, and adding polishing solution into the small barrel of the centrifugal finishing machine;
B: adjusting the rotating speed of the centrifugal polishing machine to 200-300 rad/min;
C: and (3) putting the finished rough blank into absolute ethyl alcohol to be soaked for 3-5 hours, and finally taking out and drying.
By adopting the technical scheme, because the noble metal and the jade have different surface finishes, the rotating speed of the centrifugal polishing machine is required to be 200rad/min-300rad/min so as to reduce the occurrence of jade breakage caused by excessive polishing, and then polishing liquid is required to be added into the centrifugal polishing to improve the polishing degree of the metal, so that the polishing requirements of the noble metal and the jade are met simultaneously.
Preferably, the tapping machine comprises a tapping device, a fixing device and a frame, the tapping device comprises a driving mechanism and a tapping mechanism, the tapping mechanism is arranged on the driving mechanism, the driving mechanism is arranged on the frame, the driving mechanism is used for driving the tapping mechanism to move, the fixing device comprises a conveying mechanism and a bearing mechanism, the bearing mechanism is arranged on the conveying mechanism, the conveying mechanism is arranged on the frame, and the conveying mechanism is used for driving the bearing mechanism to move.
By adopting the technical scheme, the support mechanism is used for bearing the rough blank, so that the stability of the rough blank when being perforated is improved, and the conveying mechanism is used for driving the support mechanism to move, so that the rough blank is conveyed from one side close to an operator to one side close to the perforating mechanism; the driving mechanism is used for driving the perforating mechanism to move, so that perforating is performed on different positions of the rough blank, the perforating of different positions of different rough blanks is met, and the perforating mechanism is used for perforating the rough blank.
Preferably, the driving mechanism comprises a first linear module and a second linear module, the moving direction of the sliding table of the first linear module is perpendicular to the moving direction of the sliding table of the second linear module, the second linear module is fixedly arranged on the sliding table of the first linear module, and the hole opening mechanism is fixedly arranged on the sliding table of the second linear module.
Through adopting above-mentioned technical scheme, because the direction of motion of the slip table of first straight line module is perpendicular with the direction of motion of the slip table of second straight line module, be favorable to realizing the removal of trompil mechanism in a plane to make trompil mechanism can be to the trompil of different positions department on the rough blank.
Preferably, the tapping mechanism comprises a supporting frame, a starting piece, a connecting rod and a drill bit, wherein the supporting frame is fixedly connected with the driving mechanism, the starting piece is fixedly connected with the supporting frame, the connecting rod is rotationally connected with the supporting frame, the drill bit is detachably connected with the connecting rod, and the starting piece is used for driving the connecting rod to rotate.
Through adopting above-mentioned technical scheme, utilize the support frame to provide the support for starter and connecting rod, utilize starter drive connecting rod to rotate, the rotation of connecting rod drives the rotation of drill bit to the realization is to noble metal's trompil.
Preferably, the conveying mechanism comprises an adjusting assembly, a first conveying assembly and a second conveying assembly, the adjusting assembly comprises a driving shaft, a driven shaft and a shaft sleeve, the driven shaft is sleeved on the driving shaft, the shaft sleeve is sleeved on the driven shaft, the shaft sleeve is connected with the rack in a sliding mode, the driven shaft is connected with the shaft sleeve in a rotating mode, the driving shaft is connected with the driven shaft in a sliding mode, the driving shaft is connected with the rack in a rotating mode, the first conveying assembly is used for driving the shaft sleeve to move, and the second conveying assembly is used for driving the driving shaft to rotate.
Through adopting above-mentioned technical scheme, utilize the rotation of second conveying assembly drive driving shaft to rotate, the rotation of driving shaft drives the rotation of driven shaft, the rotation of driven shaft drives the rotation of supporting mechanism to realize the adjustment of supporting mechanism rotation angle, because driven shaft and axle sleeve rotate to be connected, and the axle sleeve slides with the frame and be connected so that the axle sleeve can not follow the rotation of driven shaft and rotate, but the translation of axle sleeve can drive the translation of driven shaft, thereby make first conveying assembly can move through the drive axle sleeve and drive the driven shaft translation.
Preferably, the first conveying component comprises a first conveying member, a gear and a rack, the rack is fixedly connected with the shaft sleeve, the gear is meshed with the rack, the first conveying member is fixedly connected with the frame, and the first conveying member is used for driving the gear to rotate.
Through adopting above-mentioned technical scheme, utilize first transport piece drive gear to rotate, the rotation of gear drives the removal of rack to drive the removal of axle sleeve, thereby drive the driven shaft and remove along the length direction of driving shaft, thereby realize carrying the rough blank to be close to one side of trompil mechanism from one side that is close to the operator when keeping the rotation of second axis of rotation.
Preferably, the bearing mechanism comprises a bearing assembly and a power assembly, the bearing assembly comprises a bearing plate, a rotary table and a template, the bearing plate is fixedly connected with the conveying mechanism, the rotary table is rotationally connected with the bearing plate, the template is detachably connected with the rotary table, a containing groove is formed in one side, away from the rotary table, of the template, and the power assembly is used for driving the rotary table to rotate.
By adopting the technical scheme, the rough blank is fixed by using the template to improve the stability of the rough blank during punching, and the power assembly is used for driving the rotary table to rotate, so that the punching mechanism is convenient for punching holes with different angles; by fixedly connecting the bearing plate with the conveying mechanism, the conveying mechanism can drive the bearing plate to rotate and translate.
Preferably, the power assembly comprises a worm, a side gear ring and a power piece, wherein the side gear ring is fixedly installed on one side, away from the bearing plate, of the rotary table, an avoidance hole for the side gear ring to penetrate is formed in the bearing plate, the worm is in meshed connection with the side gear ring, the worm is in rotary connection with the bearing plate, the power piece is fixedly connected with the bearing plate, and the power piece is used for driving the worm to rotate.
By adopting the technical scheme, the worm is driven to rotate by the power piece, the rotation of the worm drives the rotation of the side gear ring belt, and the rotation of the side gear ring drives the rotation of the rotary table, so that the rotation of the template is realized; the self-locking of the worm and the side gear ring ensures that the rotation of the side gear ring does not drive the worm to rotate, thereby improving the stability of the rough blank during processing; the worm wheel rotates for a circle, and only the side gear ring rotates by one tooth, so that the rotation angle of the rotary table can be adjusted by the rotation of the worm wheel in a small range, and the fine adjustment of the angle of the hole is facilitated.
In summary, the present application includes at least one of the following beneficial technical effects:
1. By filling inert gas into the cavity, the solidification of the liquid noble metal is accelerated, and the contact between the liquid noble metal and air in the cooling process is reduced, so that the possibility of oxidizing the liquid noble metal at high temperature is reduced; the precious metal is perforated, and the jade is pressed into the precious metal, so that the manufacturing requirement of the watch case made of the precious metal and the jade together is met; the precious metal and the watchcase are polished by using a polishing machine, so that the requirement of the surface flatness of the watchcase can be met;
2. The bearing mechanism is used for bearing the rough blank, so that the stability of the rough blank when the rough blank is perforated is improved, and the conveying mechanism is used for driving the bearing mechanism to move, so that the rough blank is conveyed from one side close to an operator to one side close to the perforating mechanism; the driving mechanism is used for driving the perforating mechanism to move, so that perforating is facilitated at different positions of the rough blank, perforating at different positions of different rough blanks is facilitated, and the perforating mechanism is used for perforating the rough blank;
3. The second conveying assembly is used for driving the driving shaft to rotate, the rotation of the driving shaft drives the rotation of the driven shaft, the rotation of the driven shaft drives the rotation of the bearing mechanism, and therefore the adjustment of the rotation angle of the bearing mechanism is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.
Fig. 2 is a partial cross-sectional view of an opening mechanism in an embodiment of the application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
FIG. 4 is a schematic diagram showing the assembly relationship of the support mechanism according to the embodiment of the present application.
Fig. 5 is an enlarged view of part B of fig. 4.
Fig. 6 is a schematic structural view of a conveying mechanism in an embodiment of the present application.
Reference numerals illustrate: 1. a frame; 2. a driving mechanism; 21. a first linear module; 22. a second linear module; 3. a hole opening mechanism; 31. a support frame; 32. a drilling assembly; 321. a start-up member; 322. a connecting rod; 323. a drill bit; 33. a recovery assembly; 331. a recovery box; 332. an exhaust tube; 333. a dust shield; 3331. an upper shield; 3332. a lower shield; 3333. an upper flange; 3334. a lower flange; 3335. a guide post; 3336. a guide spring; 4. a conveying mechanism; 41. an adjustment assembly; 411. a driving shaft; 412. a driven shaft; 413. a shaft sleeve; 42. a first transport assembly; 421. a first conveying member; 422. a fixed block; 423. a gear; 424. a rack; 43. a second transport assembly; 431. a second conveying member; 432. a first synchronizing wheel; 434. a second synchronizing wheel; 435. a synchronous belt; 5. a bearing mechanism; 51. a support assembly; 511. a bearing plate; 5111. a storage groove; 5112. avoidance holes; 512. a rotary table; 5121. a locking groove; 5122. a notch; 513. a template; 5131. a receiving groove; 5132. a receiving groove; 514. a locking member; 5141. a locking lever; 5142. a locking spring; 5143. a locking block; 5144. a handle; 52. a power assembly; 521. a worm; 522. a side ring gear; 523. a power piece.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 6.
The embodiment of the application discloses a manufacturing process of a precious metal solid watch case. The manufacturing process of the precious metal solid watch case is implemented according to the following steps:
step one: designing a blank diagram of a product to be processed, designing a die according to the blank diagram, and calculating the quality M of the product blank;
Step two: cutting noble metal into metal particles, mounting a die on a rough blank machine, electrically connecting the die with the rough blank, and delivering the metal particles into a cavity in the die from a feed opening of the die according to the mass M;
Step three: heating the metal particles in the die into molten metal, and keeping the air pressure in the cavity to be 0.5atm-0.8atm in the heating process;
step four: after stopping heating, filling inert gas into the cavity until the molten metal is cooled to normal temperature, so that the metal particles form a rough blank in the cavity;
Step five: taking the rough blank out of the die cavity, primarily polishing the rough blank, and then annealing the rough blank; cutting jade into proper size, and then carrying out rough engraving on the jade;
Step six: forming inlay holes on the rough blank by using a perforating machine, and then annealing the rough blank;
step seven: plating a layer of titanium film on the outer surface of the rough blank by a magnetron sputtering method;
Step eight: pressing jade into the rough blank, and then engraving the rough blank;
Step nine: and (5) putting the rough blank into a centrifugal polishing machine for polishing to obtain the finished watch case.
In the first step and the second step, the noble metal is placed in the mold in a solid state, and the noble metal is heated in the mold to be in a liquid state, so that the forming time of the noble metal is reduced, the forming speed of the noble metal is increased, the forming volume of the noble metal at a water gap of the mold is reduced, and the loss of the noble metal caused by the subsequent processing of the water gap of the noble metal is reduced;
In the second and third steps, the mold is made of ceramic material, a cavity for molding noble metal is formed in the mold, and a coil is buried in the mold with the opening of the cavity as the center, so that the coil can generate a continuously changing magnetic field in a mode of applying high-frequency changing voltage to the coil, the continuously changing magnetic field generates eddy current in the metal particles, and the metal particles are overheated and melted.
In the third step, during the heating of the molten metal, air in the cavity is required to be continuously extracted so that the air pressure in the cavity is less than the atmospheric pressure, in this embodiment, the atmospheric pressure in the cavity is 0.5atm, and in other embodiments, the atmospheric pressure in the cavity may be 0.6atm, 0.7atm, and 0.8atm. By making the air pressure in the cavity less than the atmospheric pressure, the bubbles in the liquid noble metal can escape, which is beneficial to reducing the bubbles in the rough blank formed later.
In the fourth step, inert gas is filled into the cavity, so that the solidification of the liquid noble metal is accelerated, the contact between the liquid noble metal and air in the cooling process is reduced, and the possibility of oxidizing the liquid noble metal at high temperature is reduced.
In the seventh step, the method further comprises the following steps:
A: coating fire paint on the open holes of the rough blank, and shielding the open holes of the rough blank by using the fire paint;
B: placing the rough blank into a coating chamber, and coating the rough blank for the first time;
C: and detecting the thickness of the rough blank after the first coating, polishing the rough blank with the thickness larger than the design standard again, and performing the second coating on the rough blank with the thickness smaller than the design standard, so as to remove the fire paint on the rough blank meeting the design standard.
The surface of the rough blank is plated with titanium, so that the contact between the noble metal watch case and the air is reduced, the oxidation of the noble metal is reduced, the surface hardness of the noble metal watch case is improved, and the scratch of the noble metal watch case in daily use is reduced; shielding the open hole of the rough blank by using fire paint, and reducing hardening of the open hole of the rough blank caused by covering of a titanium film, so that the jade is inconvenient to press and mount on the rough blank; in addition, the rough blank is treated in a mode of repeated film coating and repeated polishing, so that the surface flatness of the rough blank is improved.
In the eighth step, the precious metal is perforated, and the jade is pressed into the precious metal, so that the manufacturing requirement of the watch case made of the precious metal and the jade together is met.
In step nine, the method further comprises the following steps:
A: placing the rough blank into a small barrel of a centrifugal finishing machine, and adding polishing solution into the small barrel of the centrifugal finishing machine;
B: adjusting the rotating speed of the centrifugal polishing machine to 200-300 rad/min;
C: and (3) putting the finished rough blank into absolute ethyl alcohol to be soaked for 3-5 hours, and finally taking out and drying.
Because noble metal and jade need the surface finish's difference, consequently need to be with centrifugal polishing machine's rotational speed to 200rad/min-300rad/min to reduce the excessive broken emergence that leads to of jade that appears polishing, then need to increase the degree of polishing to the metal through adding polishing solution in centrifugal polishing, thereby satisfy simultaneously to noble metal and jade's demand of polishing.
Referring to fig. 1, in step six, a tapping machine for tapping a rough blank includes a tapping device, a fixing device and a frame 1, the tapping device includes a driving mechanism 2 and a tapping mechanism 3, the tapping mechanism 3 is disposed on the driving mechanism 2, the driving mechanism 2 is disposed on the frame 1, the fixing device includes a conveying mechanism 4 and a supporting mechanism 5, the supporting mechanism 5 is disposed on the conveying mechanism 4, and the conveying mechanism 4 is disposed on the frame 1.
Referring to fig. 1, the driving mechanism 2 is used for driving the hole opening mechanism 3 to move, and the driving mechanism 2 includes a first linear module 21 and a second linear module 22, and in this embodiment, the first linear module 21 and the second linear module 22 are all screw-type linear modules driven by a motor. The screw rod type linear module is used as the prior art, and the structure of the screw rod type linear module is not repeated here. The base of the first linear module 21 is fixedly mounted on the frame 1, and the screw rod of the first linear module 21 is arranged along the vertical direction, so that the sliding table of the first linear module 21 can move along the vertical direction. The base of the second linear module 22 is fixedly mounted on the sliding table of the first linear module 21, and the screw rod of the second linear module 22 is arranged along the length direction of the frame 1, so that the sliding table of the second linear module 22 can move along the vertical direction. The perforating device is fixedly arranged on the sliding table of the second linear module 22, and the perforating device can move in a vertical plane through the movement of the first linear module 21 and the second linear module 22, so that the perforating device can conveniently perforate at different positions of the rough blank.
Referring to fig. 1 and 2, the tapping mechanism 3 includes a support frame 31, a drilling assembly 32, and a recovery assembly 33, wherein the support frame 31 is fixedly connected with the sliding table of the second linear module 22, the drilling assembly 32 is used for tapping the rough blank, and the recovery assembly 33 is used for recovering precious metal chips drilled in the tapping process. Drilling subassembly 32 includes starter 321, connecting rod 322 and drill bit 323, and support frame 31 level sets up and the slip table fixed connection of support frame 31's one end and second straight line module 22, and connecting rod 322 runs through support frame 31 along vertical direction to connecting rod 322 is connected with support frame 31 bearing, and connecting rod 322 rotates with support frame 31 to be connected, and drill bit 323 can dismantle the bottom of being connected in connecting rod 322. The starting piece 321 is used for driving the connecting rod 322 to rotate, the starting piece 321 is fixedly mounted on the supporting frame 31, in the embodiment, the starting piece 321 is a servo motor, and an output shaft of the starting piece 321 is fixedly connected with one end, far away from the drill bit 323, of the connecting rod 322 in a coaxial mode. The starting piece 321 is utilized to drive the connecting rod 322 to rotate, and the rotation of the connecting rod 322 drives the drill bit 323 to rotate, so that the noble metal is perforated.
Referring to fig. 1 and 2, the recovery assembly 33 includes a recovery box 331, a recovery bag, an exhaust fan, an exhaust pipe 332 and a dust shielding cover 333, the recovery box 331 is fixedly mounted on a base of the second linear module 22, the dust shielding cover 333 is fixedly mounted on the support frame 31, one end of the exhaust pipe 332 extends into the recovery box 331, the other end is fixedly connected with the dust shielding cover 333, the exhaust pipe 332 is a hose, the exhaust fan and the recovery bag are both accommodated in the recovery box 331, and the recovery bag is fixedly connected with an end part of the end of the exhaust pipe 332 extending into the recovery box 331, and the exhaust fan is fixedly mounted on the exhaust pipe 332. When the rough blank is drilled, precious metal scraps in the dust shield 333 are pumped into the dust removal bag by the exhaust fan, so that the recovery of the precious metal scraps is facilitated.
Referring to fig. 2 and 3, the dust shield 333 includes an upper shield 3331 and a lower shield 3332, the upper shield 3331 and the lower shield 3332 enclose together to form a shielding space, the connecting rod 322 and the drill bit 323 are all accommodated in the shielding space, the lower shield 3332 is arranged at the bottom of the upper shield 3331, the top of the upper shield 3331 is fixedly connected with the support frame 31, the bottom of the upper shield 3331 is integrally formed with an upper flange 3333, the top of the lower shield 3332 is integrally formed with a lower flange 3334, four guide posts 3335 are also accommodated in the upper shield 3331, the four guide posts 3335 are respectively arranged at four corners of the upper shield 3331, the four guide posts 3335 are all arranged along the vertical direction, and the four guide posts 3335 all penetrate through the lower flange 3334 and enable the lower flange 3334 to be in sliding connection with the four guide posts 3335. Each guide post 3335 is sleeved with a guide spring 3336, one end of the guide spring 3336 is fixedly connected with the upper baffle cover 3331, and the other end of the guide spring 3336 is abutted with the lower flange 3334. When the rough blank is drilled, the lower baffle cover 3332 can move relative to the upper baffle cover 3331 along with the deepening of the hole depth, so that metal scraps can be shielded.
Referring to fig. 1 and 4, the supporting mechanism 5 is used for supporting and fixing the rough blank, the supporting mechanism 5 includes a supporting component 51 and a power component 52, the supporting component 51 includes a supporting plate 511, a rotating platform 512 and a template 513, the supporting plate 511 and the template 513 are all rectangular plate-shaped, the rotating platform 512 is circular plate-shaped, the supporting plate 511 is fixedly connected with the conveying mechanism 4, a storage groove 5111 for accommodating the rotating platform 512 is formed in the supporting plate 511, and a storage groove 5131 for supporting and fixing the rough blank is formed in one side, far away from the rotating platform 512, of the template 513.
Referring to fig. 4 and 5, the mold 513 is detachably connected to the rotary table 512, specifically, a plurality of locking elements 514 are disposed on the mold 513, a plurality of accommodating grooves 5132 are formed on a side, close to the rotary table 512, of the mold 513, and each locking element 514 is respectively accommodated in one accommodating groove 5132. The locking piece 514 comprises a locking rod 5141, a locking spring 5142 and a locking block 5143, wherein the locking rod 5141 is arranged along the horizontal direction, the locking rod 5141 is fixedly connected with the groove wall of the accommodating groove 5132, the locking spring 5142 and the locking block 5143 are movably sleeved on the locking rod 5141, one end of the locking spring 5142 is abutted with the groove wall of the accommodating groove 5132, the other end of the locking spring 5142 is abutted with one side of the locking block 5143, the locking block 5143 is arranged in a T shape, a handle 5144 is fixedly arranged on the locking block 5143, the handle 5144 penetrates through one side of the template 513 along the horizontal direction, a user can dial the handle 5144 to adjust the position of the locking block 5143, a locking groove 5121 which is in sliding fit with the locking block 5143 is formed in one side of the rotary table 512, which is close to the template 513, the locking groove 5121 is a T-shaped groove, and one end of the locking groove 5121, which is connected with the spring, is provided with the template 513 with a notch 5122 for the locking block 5143 to extend in or out.
Referring to fig. 4, the power assembly 52 is configured to drive the rotary table 512 to rotate, the power assembly 52 includes a worm 521, a side gear ring 522 and a power element 523, the side gear ring 522 is fixedly mounted on one side of the rotary table 512 far away from the support plate 511, a dodging hole 5112 through which the side gear ring 522 passes is formed in the support plate 511, the worm 521 is engaged with the side gear ring 522, the worm 521 is in bearing connection with the support plate 511, the power element 523 is fixedly connected with the support plate 511, the power element 523 is configured to drive the worm 521 to rotate, in this embodiment, the power element 523 is a servo motor, and an output shaft of the power element 523 is coaxially and fixedly connected with the worm 521.
The power piece 523 is utilized to drive the worm 521 to rotate, the rotation of the worm 521 drives the side gear ring 522 to rotate, and the rotation of the side gear ring 522 drives the rotation table 512 to rotate, so that the rotation of the template 513 is realized; the self-locking of the worm 521 and the side gear ring 522 ensures that the rotation of the side gear ring 522 does not drive the rotation of the worm 521, thereby improving the stability of rough blank processing; the rotation of the worm wheel is one turn, only the side gear ring 522 is rotated by one tooth, so that the rotation angle of the rotary table 512 can be adjusted by a small extent by the rotation of the worm wheel, which is beneficial to finely adjusting the angle of the opening.
Referring to fig. 6, the conveying mechanism 4 is used for driving the supporting mechanism 5 to move, the conveying mechanism 4 comprises an adjusting assembly 41, a first conveying assembly 42 and a second conveying assembly 43, and the adjusting assembly 41 comprises a driving shaft 411, a driven shaft 412 and a shaft sleeve 413. The driving shaft 411, the driven shaft 412 and the shaft sleeve 413 are all arranged along the length direction of the frame 1, the driving shaft 411 is in a cuboid column shape, the driven shaft 412 is in a column shape, the shaft sleeve 413 is in a column shape, a containing hole for containing the driving shaft 411 is formed in the driven shaft 412, the containing hole penetrates through the driven shaft 412 along the axial direction of the driven shaft 412, the driving shaft 411 is contained in the containing hole, and the side wall of the driving shaft 411 and the hole wall of the containing hole can slide relatively. The driven shaft 412 is fixedly connected to the bearing plate 511 such that the bearing plate 511 is inclined with the rotation of the driven shaft 412 when the driven shaft 412 rotates.
Referring to fig. 6, a sleeve 413 is sleeved on the driven shaft 412, specifically, a bearing is sleeved on the driven shaft 412, an inner ring of the bearing is fixedly connected with the driven shaft 412, and an outer ring of the bearing is fixedly connected with the sleeve 413, so that the sleeve 413 can rotate relative to the driven shaft 412. The shaft sleeve 413 is slidably connected with the frame 1 through a sliding block and a sliding groove, and the driving shaft 411 is in bearing connection with the frame 1.
The second conveying component 43 is utilized to drive the driving shaft 411 to rotate, the rotation of the driving shaft 411 drives the rotation of the driven shaft 412, the rotation of the driven shaft 412 drives the inclination of the bearing plate 511, and therefore the inclination angle of the bearing plate 511 is adjusted.
Referring to fig. 6, the first conveying component 42 is configured to drive the shaft sleeve 413 to move, where the first conveying component 42 includes a first conveying member 421, a fixed block 422, a gear 423 and a rack 424, where the fixed block 422 is fixedly installed on the shaft sleeve 413, the rack 424 is fixedly installed on the shaft sleeve 413, the gear 423 is engaged with the rack 424, the first conveying member 421 is fixedly connected with the frame 1, the first conveying member 421 is configured to drive the gear 423 to rotate, in this embodiment, the first conveying member 421 is a servo motor, and the gear 423 is fixedly sleeved on an output shaft of the first conveying member 421.
Referring to fig. 6, the second conveying assembly 43 is configured to drive the driving shaft 411 to rotate, the second conveying assembly 43 includes a second conveying member 431, a first synchronizing wheel 432, a second synchronizing wheel 434 and a synchronous belt 435, the first synchronizing wheel 432 is fixedly sleeved on the driven shaft 412, the second conveying member 431 is fixedly connected with the frame 1, the second conveying member 431 is configured to drive the second synchronizing wheel 434 to rotate, in this embodiment, the second conveying member 431 is a servo motor, the second synchronizing wheel 434 is fixedly sleeved on an output shaft of the servo motor, and the synchronous belt 435 is in transmission connection with the first synchronizing wheel 432 and the second synchronizing wheel 434.
The above is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (7)

1. The manufacturing process of the precious metal solid watch case is characterized by comprising the following steps of:
step one: designing a blank diagram of a product to be processed, designing a die according to the blank diagram, and calculating the quality M of the product blank;
Step two: cutting noble metal into metal particles, mounting a die on a rough blank machine, electrically connecting the die with the rough blank, and delivering the metal particles into a cavity in the die from a feed opening of the die according to the mass M;
Step three: heating the metal particles in the die into molten metal, and keeping the air pressure in the cavity to be 0.5atm-0.8atm in the heating process;
step four: after stopping heating, filling inert gas into the cavity until the molten metal is cooled to normal temperature, so that the metal particles form a rough blank in the cavity;
Step five: taking the rough blank out of the die cavity, primarily polishing the rough blank, and then annealing the rough blank; cutting jade into proper size, and then carrying out rough engraving on the jade;
Step six: forming inlay holes on the rough blank by using a perforating machine, and then annealing the rough blank;
step seven: plating a layer of titanium film on the outer surface of the rough blank by a magnetron sputtering method;
Step eight: pressing jade into the rough blank, and then engraving the rough blank;
step nine: the rough blank is put into a centrifugal polishing machine for polishing, and a finished watch case is obtained;
The tapping machine comprises a tapping device, a fixing device and a frame (1), wherein the tapping device comprises a driving mechanism (2) and a tapping mechanism (3), the tapping mechanism (3) is arranged on the driving mechanism (2), the driving mechanism (2) is arranged on the frame (1), the driving mechanism (2) is used for driving the tapping mechanism (3) to move, the fixing device comprises a conveying mechanism (4) and a bearing mechanism (5), the bearing mechanism (5) is arranged on the conveying mechanism (4), the conveying mechanism (4) is arranged on the frame (1), and the conveying mechanism (4) is used for driving the bearing mechanism (5) to move;
The conveying mechanism (4) comprises an adjusting assembly (41), a first conveying assembly (42) and a second conveying assembly (43), the adjusting assembly (41) comprises a driving shaft (411), a driven shaft (412) and a shaft sleeve (413), the driven shaft (412) is sleeved on the driving shaft (411), the shaft sleeve (413) is sleeved on the driven shaft (412), the shaft sleeve (413) is in sliding connection with the frame (1), the driven shaft (412) is in rotary connection with the shaft sleeve (413), the driving shaft (411) is in sliding connection with the driven shaft (412), the driving shaft (411) is in rotary connection with the frame (1), the first conveying assembly (42) is used for driving the shaft sleeve (413) to move, and the second conveying assembly (43) is used for driving the driving shaft (411) to rotate.
The first conveying assembly (42) comprises a first conveying piece (421), a gear (423) and a rack (424), the rack (424) is fixedly connected with the shaft sleeve (413), the gear (423) is meshed with the rack (424), the first conveying piece (421) is fixedly connected with the frame (1), and the first conveying piece (421) is used for driving the gear (423) to rotate.
2. The process for manufacturing a solid precious metal wristwatch case of claim 1, wherein the seventh step comprises the following steps:
A: coating fire paint on the open holes of the rough blank, and shielding the open holes of the rough blank by using the fire paint;
B: placing the rough blank into a coating chamber, and coating the rough blank for the first time;
C: and detecting the thickness of the rough blank after the first coating, polishing the rough blank with the thickness larger than the design standard again, and performing the second coating on the rough blank with the thickness smaller than the design standard, so as to remove the fire paint on the rough blank meeting the design standard.
3. The process for manufacturing a solid precious metal wristwatch case of claim 1, wherein the step nine comprises the steps of:
A: placing the rough blank into a small barrel of a centrifugal finishing machine, and adding polishing solution into the small barrel of the centrifugal finishing machine;
B: adjusting the rotating speed of the centrifugal polishing machine to 200-300 rad/min;
C: and (3) putting the finished rough blank into absolute ethyl alcohol to be soaked for 3-5 hours, and finally taking out and drying.
4. The process for manufacturing a solid precious metal watch case according to claim 1, wherein: the driving mechanism (2) comprises a first linear module (21) and a second linear module (22), the moving direction of the sliding table of the first linear module (21) is perpendicular to the moving direction of the sliding table of the second linear module (22), the second linear module (22) is fixedly arranged on the sliding table of the first linear module (21), and the hole opening mechanism (3) is fixedly arranged on the sliding table of the second linear module (22).
5. The process for manufacturing a solid precious metal watch case according to claim 1, wherein: the tapping mechanism (3) comprises a supporting frame (31), a starting piece (321), a connecting rod (322) and a drill bit (323), wherein the supporting frame (31) is fixedly connected with the driving mechanism (2), the starting piece (321) is fixedly connected with the supporting frame (31), the connecting rod (322) is rotatably connected with the supporting frame (31), the drill bit (323) is detachably connected with the connecting rod (322), and the starting piece (321) is used for driving the connecting rod (322) to rotate.
6. The process for manufacturing a solid precious metal watch case according to claim 1, wherein: the bearing mechanism (5) comprises a bearing component (51) and a power component (52), the bearing component (51) comprises a bearing plate (511), a rotary table (512) and a template (513), the bearing plate (511) is fixedly connected with the conveying mechanism (4), the rotary table (512) is rotationally connected with the bearing plate (511), the template (513) is detachably connected with the rotary table (512), the template (513) is far away from one side of the rotary table (512) and provided with a containing groove (5131), and the power component (52) is used for driving the rotary table (512) to rotate.
7. The process for manufacturing a solid precious metal watch case according to claim 6, wherein: the power assembly (52) comprises a worm (521), a side gear ring (522) and a power piece (523), wherein the side gear ring (522) is fixedly installed on one side, far away from the bearing plate (511), of the rotary table (512), an avoidance hole (5112) for the side gear ring (522) to penetrate is formed in the bearing plate (511), the worm (521) is connected with the side gear ring (522) in a meshed mode, the worm (521) is connected with the bearing plate (511) in a rotary mode, the power piece (523) is fixedly connected with the bearing plate (511), and the power piece (523) is used for driving the worm (521) to rotate.
CN202210481175.3A 2022-05-05 2022-05-05 Manufacturing process of precious metal solid watch case Active CN114779602B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929668A (en) * 2016-04-25 2016-09-07 尊尚(深圳)穿金戴银技术股份有限公司 Pure gold watchcase, manufacturing method thereof and dial plate comprising pure gold watchcase
CN207414404U (en) * 2017-10-31 2018-05-29 江苏苏源杰瑞科技有限公司 A kind of electric meter case perforating device easy to use
CN108838340A (en) * 2018-06-28 2018-11-20 浙江银拓文化有限公司 A kind of method for processing noble metal
CN208791716U (en) * 2018-08-30 2019-04-26 青岛蓝光晶科新材料有限公司 Prepare the device of refractory metal target
WO2020246872A1 (en) * 2019-06-05 2020-12-10 Van Coolen Corstiaan Johannes Piece of jewellery
CN113749363A (en) * 2021-10-09 2021-12-07 郑伟 Simplified and series standardized operation preparation method for jewelry jade and precious metal
CN113917827A (en) * 2021-10-14 2022-01-11 深圳市慧芯科技有限公司 Processing equipment for intelligent watch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929668A (en) * 2016-04-25 2016-09-07 尊尚(深圳)穿金戴银技术股份有限公司 Pure gold watchcase, manufacturing method thereof and dial plate comprising pure gold watchcase
CN207414404U (en) * 2017-10-31 2018-05-29 江苏苏源杰瑞科技有限公司 A kind of electric meter case perforating device easy to use
CN108838340A (en) * 2018-06-28 2018-11-20 浙江银拓文化有限公司 A kind of method for processing noble metal
CN208791716U (en) * 2018-08-30 2019-04-26 青岛蓝光晶科新材料有限公司 Prepare the device of refractory metal target
WO2020246872A1 (en) * 2019-06-05 2020-12-10 Van Coolen Corstiaan Johannes Piece of jewellery
CN113749363A (en) * 2021-10-09 2021-12-07 郑伟 Simplified and series standardized operation preparation method for jewelry jade and precious metal
CN113917827A (en) * 2021-10-14 2022-01-11 深圳市慧芯科技有限公司 Processing equipment for intelligent watch

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