CN113427209A - Production process of stainless steel watch case - Google Patents
Production process of stainless steel watch case Download PDFInfo
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- CN113427209A CN113427209A CN202110687230.XA CN202110687230A CN113427209A CN 113427209 A CN113427209 A CN 113427209A CN 202110687230 A CN202110687230 A CN 202110687230A CN 113427209 A CN113427209 A CN 113427209A
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- stainless steel
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- watch case
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention relates to a production process of a stainless steel watchcase, which comprises the following steps: step S1: providing a cylindrical stainless steel blank, wherein the cross section of the stainless steel blank is annular; step S2: cutting the stainless steel blank into a plurality of ring bodies; step S3: the ring body is processed through two forging and pressing procedures to form a first watch shell; step S4: and processing the first watch shell by two stamping processes to form the stainless steel watch shell. The production process of the stainless steel watchcase improves the production efficiency and saves materials and cost in the process.
Description
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a production process of a stainless steel watch case.
Background
The watch is widely used in daily life of people, the appearance and the quality of the watch made of stainless steel are good, the watch shell made of the stainless steel is complex in processing technology, and the watch can be formed by forging and pressing for many times.
In the existing production process, a plate-shaped structure is usually provided, and is processed into a plurality of solid plate-shaped bodies with the shape of the watch case through a numerical control stamping process, then each solid plate-shaped body with the shape of the watch case is stamped to form a hollow plate-shaped body with the shape of the watch case, and then the hollow plate-shaped body is processed through a plurality of stamping and stamping processes, usually about six times of stamping and more than ten times of stamping, so as to form the watch case with the annular structure. Such conventional production processes are not only more costly but also inefficient.
Disclosure of Invention
The invention provides a production process of a stainless steel watchcase, which aims to solve the problems that the production process of the existing stainless steel watchcase needs more cost and is low in efficiency.
In order to solve the technical problem, the invention provides a production process of a stainless steel watchcase, which comprises the following steps: step S1: providing a cylindrical stainless steel blank, wherein the cross section of the stainless steel blank is annular; step S2: cutting the stainless steel blank into a plurality of ring bodies; step S3: the ring body is processed through two forging and pressing procedures to form a first watch shell; step S4: and processing the first watch shell by two stamping processes to form the stainless steel watch shell.
Preferably, the ring body and the stainless steel watch case each comprise an upper surface, a lower surface and a middle hole, the middle hole penetrates through the upper surface and the lower surface, and the height between the upper surface and the lower surface of the stainless steel watch case is smaller than the height between the upper surface and the lower surface of the ring body.
Preferably, in step S3, the two forging processes respectively forge the upper and lower surfaces of the ring body.
Preferably, in step S4, the first watch case includes an outer side wall and an inner side wall, the first watch case is sequentially subjected to a first stamping and a second stamping, the first stamping stamps the outer side wall and the inner side wall, and the second stamping stamps the outer side wall with a fine cut.
Preferably, the ring body is subjected to vibration grinding before the first forging, the ring body subjected to vibration grinding is subjected to acid pickling, rough polishing and cleaning in sequence after the first forging, then the second forging is performed, and the first watch case subjected to the second forging is subjected to rough edge cutting, punching, fine edge cutting, acid pickling, tempering and full inspection in sequence.
Preferably, in step S2, the height between the upper and lower surfaces of the ring body is between 16-19 mm.
Preferably, the ring body comprises an outer ring surface and an inner ring surface, the width between the outer ring surface and the inner ring surface being between 5 and 8 mm.
Preferably, the thickness of the stainless steel watchcase is between 9-12 mm.
Preferably, the height between the upper and lower surfaces of the ring body is 17.5 mm.
Preferably, the height between the upper surface and the lower surface of the stainless steel watch case is 10.7 mm.
Compared with the prior art, the tubular embryo compares traditional plate embryo forging and pressing in-process mobility better, realizes the product structure more easily to forging and pressing number of times has been reduced: 4 times of forging and 11 times of stamping are reduced; the middle of the tubular blank is hollow, and compared with the traditional plate blank, the material cost and the resource waste are saved: the weight of the raw material of the traditional process is 0.135KG, the weight of the raw material of the process is 0.11KG, and the raw material is saved by 0.025KG for a single product. The process saves and reduces manpower, and the raw material saving achieves the original purposes of cost reduction, efficiency improvement and environmental protection.
The invention relates to a production process of a stainless steel watchcase, which comprises the steps of cutting a cylindrical stainless steel blank into a plurality of circular stainless steel ring bodies, sequentially forging and stamping the circular stainless steel ring bodies twice to form the stainless steel watchcase, wherein the middle of each ring body is hollow, so that compared with a solid plate-shaped body in the prior art, the material is saved, the thickness of each ring body is generally not required to be cut to be thinner in the process, the thickness between the upper surface and the lower surface of each ring body in the process is 17.5mm and is larger than the thickness between the upper surface and the lower surface of the watchcase by 10.7mm, the thickness of each ring body is reduced through forging and stamping processes, the ring body is forged in the direction between the upper surface and the lower surface in the forging process, compared with the forging process in the traditional process, the ring-shaped body plate extends to the required thickness of 10.7mm in the direction of the upper surface and the lower surface, and the production process can be realized only by twice forging, the production efficiency is improved, and the material and the cost are saved in the process.
Drawings
FIG. 1 is a perspective view of a stainless steel watch case in a process for producing the same according to the present invention;
FIG. 2 is a cylindrical stainless steel blank for a process for manufacturing a stainless steel watch case according to the present invention;
FIG. 3 is a ring body cut from a cylindrical stainless steel blank in a process for manufacturing a stainless steel watch case according to the present invention;
FIG. 4 shows a watch case formed by a first forging in a process for manufacturing a stainless steel watch case according to the present invention;
FIG. 5 is a first watch case formed after a second forging in a process for manufacturing a stainless steel watch case according to the present invention;
FIG. 6 shows a watch case formed by a first punching in a process for manufacturing a stainless steel watch case according to the present invention;
FIG. 7 shows a stainless steel wristwatch case formed by a second punching in a manufacturing process of a stainless steel wristwatch case according to the present invention;
FIG. 8 is a production flow chart of a production process of a stainless steel wristwatch case of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, fig. 2 and fig. 3, the process for manufacturing a stainless steel watchcase according to the present invention is used for manufacturing a stainless steel watchcase 105, wherein the stainless steel watchcase 105 is an annular body, the stainless steel watchcase 105 is formed by forging and stamping a circular ring-shaped stainless steel ring 101, and the circular ring-shaped stainless steel ring 101 is formed by cutting a cylindrical blank 10 along a cross section. The invention relates to an improved process of a stainless steel watchcase production process, which forms a required stainless steel watchcase by forging and pressing a cylindrical tubular blank, and the improved process has the advantages of high production efficiency and cost saving. Cylindrical embryo 10 is the tubular embryo, compares traditional panel embryo forging and pressing in-process mobility better, realizes the product structure more easily to forging and pressing number of times has been reduced: 4 times of forging and 11 times of stamping are reduced; the middle of the tubular blank is hollow, so that compared with the traditional plate blank, the material cost and the resource waste are saved.
The stainless steel watch case 105 and the circular ring-shaped stainless steel ring body 101 each include an upper surface, a lower surface, and a middle hole penetrating the upper surface and the lower surface, and a height between the upper surface and the lower surface of the stainless steel watch case 105 is smaller than a height between the upper surface and the lower surface of the circular ring-shaped stainless steel ring body 101. In particular, said stainless steel watch case 105 comprises a first upper surface 1051, a first lower surface 1052 and a first intermediate aperture 1053, said first upper surface 1051 and first lower surface 1052 having a thickness comprised between 9 and 12mm, preferably 10.7 mm; the stainless steel ring 101 in the shape of a circular ring comprises a second upper surface 1011 and a second lower surface 1012, and the thickness between the second upper surface 1011 and the second lower surface 1012 is 16-19mm, preferably 17.5 mm.
The stainless steel watch case 105 comprises a circular ring and a first protrusion, a second protrusion and a third protrusion, wherein the circular ring comprises an outer ring and an inner ring, the thickness between the outer ring and the inner ring is between 5-8mm, the first protrusion, the second protrusion and the third protrusion are respectively positioned on the outer ring of the circular ring, the first protrusion, the second protrusion and the third protrusion are integrally connected with the circular ring, one end of the first protrusion is connected with one end of the second protrusion, the first protrusion and the second protrusion are arranged on a straight line, the line segment formed by connecting the first protrusion and the second protrusion is tangent to the circular ring, and the joint of the first protrusion and the second protrusion is connected with the outer ring of the circular ring. The third protrusion is located beside the first protrusion, a circumferential angle between the third protrusion and the first protrusion is between 50 and 70 degrees, the third protrusion is tangent to the outer ring of the circular ring, one end of the third protrusion is tangent to the outer ring of the circular ring, and the other end of the third protrusion extends outwards, and the extending direction of the third protrusion is opposite to the extending direction of the first protrusion and the extending direction of the second protrusion. In the production process of the stainless steel watchcase, the shape and the structure of the stainless steel watchcase 105 are not limited, and the watchcase is formed by performing forging and stamping twice through the ring body 101.
In the production process of the stainless steel watchcase, the stainless steel watchcase 105 is formed by sequentially carrying out two times of forging and two times of stamping on the circular ring-shaped stainless steel ring body 101, the thickness between the upper surface and the lower surface of the ring body 101 is 17.5mm, the thickness between the upper surface and the lower surface of the watchcase 105 is 10.7mm, and the thickness of the ring body 101 is reduced through the working procedures of forging and stamping. In the existing production process, a plurality of near-circular plate-shaped bodies in the shape of watchcases are formed through a numerical control stamping process, because the plate-shaped bodies are solid, the solid plate-shaped bodies need to be punched into hollow plate-shaped bodies through the stamping process, materials are wasted, the thickness of the solid plate-shaped bodies is generally 6.5mm in the production process, the thickness of the annular plate-shaped bodies after punching is generally 6.5mm, the annular plate-shaped bodies extend to the required thickness of 10.7mm in the direction of the upper surface and the lower surface of the annular plate-shaped bodies through multiple stamping processes, the thinner annular plate-shaped bodies are extended into thicker watchcases in the stamping process, about six times of stamping and about 14 times of stamping are generally needed, the efficiency is low, and more cost is needed.
Fig. 2 shows a cylindrical stainless steel blank 10 provided in the production process, wherein the cross section of the cylindrical stainless steel blank 10 is circular, and as a modification, the shape of the cross section is not limited, and may be square or other rectangle, as long as the cross section of the stainless steel blank is circular. The cylindrical stainless steel blank 10 comprises an inner wall and an outer wall, the thickness between the inner wall and the outer wall is 5-8mm, and preferably, the thickness between the inner wall and the outer wall is 6.5 mm.
In fig. 3, a circular ring-shaped stainless steel ring body 101 is cut from the cylindrical stainless steel blank 10, and the circular ring-shaped stainless steel ring body 101 includes an inner wall and an outer wall, the thickness between the inner wall and the outer wall is between 5mm and 8mm, and preferably, the thickness between the inner wall and the outer wall is 6.5 mm.
Referring to fig. 4, after the circular stainless steel ring 101 is subjected to a first forging process, a watch case 102 after first forging is formed, where the first forging is to forge a second upper surface 1011 of the circular stainless steel ring 101, and a watch case upper surface required in the process is formed on the second upper surface 1011.
Referring to fig. 5, the watch case 102 after the first forging is subjected to a second forging process to form a second forged watch case 103, in the second forging, a second lower surface 1012 of the stainless steel ring 101 in a circular ring shape is forged, and a watch case lower surface required in the process is formed on the second lower surface 1012. As a modification, the order of the first forging and the second forging is not limited, and the second lower surface 1012 of the stainless steel ring body 101 may be forged in the first forging and the second upper surface 1011 of the stainless steel ring body 101 may be forged in the second forging. After the first forging and the second forging, a first watch case, that is, the second forged wristwatch case 103 was formed, in which the thickness between the forged upper surface and the forged lower surface was 10.7 mm.
Referring to fig. 6, the watchcase 103 after the second forging is subjected to a first stamping to form a first stamped watchcase 104, the first stamping is a rough trimming and punching process, the first watchcase includes an outer side wall 1041 and an inner side wall 1042, and the outer side wall 1041 and the inner side wall 1042 are stamped in the first stamping process to form a watchcase outer side wall and a watchcase inner side wall required in the process.
Referring to fig. 7, the watchcase 104 after the first stamping is stamped for the second time, where the second stamping is a finish trimming process, and the outer side wall 1041 is stamped for the finish trimming, and since the outer side wall 1041 of the stainless steel watchcase needs to be smoother, in the second stamping process, it is only necessary to stamp the finish trimming of the outer side wall 1041, and it is not limited whether the inner side wall 1042 is stamped for the second time.
Referring to fig. 8, the process for manufacturing a stainless steel watch case according to the present invention comprises the following steps:
step S1: providing a cylindrical stainless steel blank 10, wherein the cross section of the stainless steel blank 10 is annular;
step S2: cutting the stainless steel blank 10 into a plurality of ring bodies 101, wherein the ring bodies 101 comprise an outer ring surface and an inner ring surface, the width between the outer ring surface and the inner ring surface is between 5 and 8mm, and preferably, the width between the outer ring surface and the inner ring surface is 6.5 mm.
Step S3: the ring body 101 is processed through two forging processes, wherein the two forging processes sequentially comprise first forging and second forging, and the first forging and the second forging respectively forge the upper surface and the lower surface of the ring body 101 to form a first watch case, namely the watch case 103 after the second forging.
As a modification, the upper surface and the lower surface of the ring body 101 are forged in succession without limitation, and the second lower surface 1012 of the stainless steel ring body 101 may be forged in the first forging and the second upper surface 1011 of the stainless steel ring body 101 may be forged in the second forging.
Step S4: and processing the first watch shell by two stamping processes to form the stainless steel watch shell. First table casing includes lateral wall and inside wall, first table casing is in proper order through first punching press and secondary punching press, the punching press of first time is with lateral wall and inside wall punching press, the secondary punching press carries out the finish trimming punching press with the lateral wall.
In the above steps, the first forging and pressing and the second forging and pressing are hot pressing, the ring body 101 is subjected to vibration grinding before the first forging and pressing, after the ring body 101 subjected to vibration grinding is subjected to first forging and pressing, pickling, rough polishing and cleaning are sequentially performed, then the second forging and pressing is performed, and the watchcase 103 subjected to the second forging and pressing is subjected to rough trimming and punching, fine trimming, pickling, tempering and full inspection sequentially.
The stainless steel watchcase produced in the production process of the stainless steel watchcase is made of stainless steel metal, preferably made of SUS316L, and is not limited to be made of stainless steel watchcases and SUS316L as a variant, and other metal materials can be selected in the process. The first forging and the second forging in the production process of the stainless steel watchcase are hot forging, the used equipment is the same as the cold forging process, the tonnage of the equipment is 500T, the used die is preheated before production, the material of the die is H13(H13 belongs to hot die steel, and is a steel grade formed by adding alloy elements on the basis of carbon steel), the hardness of the die is 55-57, and the temperature of the die is 450-.
The invention solves the problem that in the traditional process for producing stainless steel watchcases, the process of forging and pressing by using a common plate needs 6 times of forging and pressing and 14 times of stamping to form a watchcase blank, the traditional process flow is usually complicated, a rectangular plate is usually provided, the production flow comprises the steps of blanking the plate, punching for the first time, edging for the second time, cleaning and tempering, hot forging forming for the first time, trimming for the first time, punching for the second time, cleaning and tempering, hot forging forming for the second time, trimming for the second time, pickling, grinding, tempering, coarse grinding for the second time, cleaning and oil immersion, cold press forming for the first time, punching for the third time, cleaning again, oil immersion and cold press forming for the second time, And (3) trimming for the third time, then cleaning and tempering, performing coarse grinding for the third time after cleaning and tempering, then cleaning and oil immersion, performing cold press molding for the third time after cleaning and oil immersion, then cleaning, performing cold press molding for the fourth time after cleaning, performing tempering and oil immersion, performing fine punching, performing rough cutting on the outer side wall, performing rough cutting on the inner side wall for the first time, performing rough cutting on the inner side wall for the second time, performing fine trimming, cleaning and tempering, and performing full inspection after cleaning and tempering. The traditional process needs more labor cost and is low in production efficiency, in the production process of the improved stainless steel watch case, the production process comprises the steps of blanking of a cylindrical tubular blank, carrying out primary hot pressing after vibration grinding, carrying out acid washing and rough polishing after the primary hot pressing, then carrying out cleaning, carrying out secondary hot pressing after cleaning, carrying out rough trimming and punching after the secondary hot pressing, carrying out fine trimming, then carrying out cleaning and tempering, carrying out full inspection after tempering, carrying out forging and pressing by using the cylindrical tubular blank in the improved production process only for 2 times of forging and pressing and 3 times of pressing, reducing 4 times of forging and pressing and 11 times of pressing compared with the traditional process, improving the efficiency and saving the cost.
Compared with the prior art, the tubular embryo compares traditional plate embryo forging and pressing in-process mobility better, realizes the product structure more easily to forging and pressing number of times has been reduced: 4 times of forging and 11 times of stamping are reduced; the middle of the tubular blank is hollow, and compared with the traditional plate blank, the material cost and the resource waste are saved: the weight of the raw material of the traditional process is 0.135KG, the weight of the raw material of the process is 0.11KG, and the raw material is saved by 0.025KG for a single product. The process saves and reduces manpower, and the raw material saving achieves the original purposes of cost reduction, efficiency improvement and environmental protection.
The invention relates to a production process of a stainless steel watchcase, which comprises the steps of cutting a cylindrical stainless steel blank into a plurality of circular stainless steel ring bodies, sequentially forging and stamping the circular stainless steel ring bodies twice to form the stainless steel watchcase, wherein the middle of each ring body is hollow, so that compared with a solid plate-shaped body in the prior art, the material is saved, the thickness of each ring body is generally not required to be cut to be thinner in the process, the thickness between the upper surface and the lower surface of each ring body in the process is 17.5mm and is larger than the thickness between the upper surface and the lower surface of the watchcase by 10.7mm, the thickness of each ring body is reduced through forging and stamping processes, the ring body is forged in the direction between the upper surface and the lower surface in the forging process, compared with the forging process in the traditional process, the ring-shaped body plate extends to the required thickness of 10.7mm in the direction of the upper surface and the lower surface, and the production process can be realized only by twice forging, the production efficiency is improved, and the material and the cost are saved in the process.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A production process of a stainless steel watchcase is characterized by comprising the following steps: the method comprises the following steps:
step S1: providing a cylindrical stainless steel blank, wherein the cross section of the stainless steel blank is annular;
step S2: cutting the stainless steel blank into a plurality of ring bodies;
step S3: the ring body is processed through two forging and pressing procedures to form a first watch shell;
step S4: and processing the first watch shell by two stamping processes to form the stainless steel watch shell.
2. A process for manufacturing a stainless steel watch case according to claim 1 wherein: the ring body and the stainless steel watchcase both comprise an upper surface, a lower surface and a middle hole, the middle hole penetrates through the upper surface and the lower surface, and the height between the upper surface and the lower surface of the stainless steel watchcase is smaller than the height between the upper surface and the lower surface of the ring body.
3. A process for manufacturing a stainless steel watch case according to claim 2 wherein: in step S3, the two forging processes respectively forge the upper surface and the lower surface of the ring body.
4. A process for manufacturing a stainless steel watch case according to claim 1 wherein: in step S4, the first meter case includes an outer side wall and an inner side wall, and the first meter case is sequentially subjected to first stamping and second stamping, wherein the outer side wall and the inner side wall are stamped by the first stamping, and the outer side wall is subjected to finish trimming stamping by the second stamping.
5. A process for manufacturing a stainless steel watch case according to claim 1 wherein: the ring body is subjected to vibration grinding before the first forging, after the ring body subjected to vibration grinding is subjected to first forging, pickling, rough polishing and cleaning are sequentially performed, then secondary forging is performed, and the first meter shell subjected to secondary forging is subjected to rough edge cutting, punching, fine edge cutting, pickling, tempering and full inspection sequentially.
6. A process for manufacturing a stainless steel watch case according to claim 1 wherein: in step S2, the height between the upper and lower surfaces of the ring body is between 16-19 mm.
7. A process for manufacturing a stainless steel watch case according to claim 1 wherein: the ring body comprises an outer ring surface and an inner ring surface, and the width between the outer ring surface and the inner ring surface is 5-8 mm.
8. A process for manufacturing a stainless steel watch case according to claim 1 wherein: the thickness of the stainless steel watchcase is between 9 and 12 mm.
9. A process for manufacturing a stainless steel watch case according to claim 6 wherein: the height between the upper surface and the lower surface of the ring body is 17.5 mm.
10. A process for manufacturing a stainless steel watch case according to claim 2 wherein: the height between the upper surface and the lower surface of the stainless steel watch case is 10.7 mm.
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| CN108213878A (en) * | 2018-03-27 | 2018-06-29 | 深圳市帕玛精品制造有限公司 | The production method of wrist-watch watch rim and wrist-watch watch rim |
| CN110976748A (en) * | 2019-11-22 | 2020-04-10 | 广东长盈精密技术有限公司 | Forging method and manufacturing method of stainless steel watch case and stainless steel watch case |
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2021
- 2021-06-21 CN CN202110687230.XA patent/CN113427209A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685572A (en) * | 1969-10-25 | 1972-08-22 | Gkn Group Services Ltd | Apparatus for die-casting metals |
| CN102527895A (en) * | 2012-02-27 | 2012-07-04 | 广西大学 | Process and die for forging big circular ring with rectangular section |
| JP2013240819A (en) * | 2012-05-22 | 2013-12-05 | Kotani:Kk | Method and device for manufacturing bearing material |
| TW201422413A (en) * | 2012-12-14 | 2014-06-16 | Pard Hardware Ind Co Ltd | Tool molding method |
| CN105269270A (en) * | 2015-11-27 | 2016-01-27 | 吉林省维尔特隧道装备有限公司 | Production process for disc cutter ring of tunnel boring machine (TBM) |
| CN105598351A (en) * | 2015-12-25 | 2016-05-25 | 广东长盈精密技术有限公司 | Manufacturing method of aluminum alloy shell |
| CN108213878A (en) * | 2018-03-27 | 2018-06-29 | 深圳市帕玛精品制造有限公司 | The production method of wrist-watch watch rim and wrist-watch watch rim |
| CN110976748A (en) * | 2019-11-22 | 2020-04-10 | 广东长盈精密技术有限公司 | Forging method and manufacturing method of stainless steel watch case and stainless steel watch case |
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Application publication date: 20210924 |