CN114226538A - Air bag air guide sleeve and forming method thereof - Google Patents
Air bag air guide sleeve and forming method thereof Download PDFInfo
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- CN114226538A CN114226538A CN202111618952.6A CN202111618952A CN114226538A CN 114226538 A CN114226538 A CN 114226538A CN 202111618952 A CN202111618952 A CN 202111618952A CN 114226538 A CN114226538 A CN 114226538A
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- tubular structure
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- air guide
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 238000004080 punching Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
- B60R2021/2612—Gas guiding means, e.g. ducts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
Abstract
The invention relates to the technical field of airbag part processing, in particular to an airbag air guide sleeve and a forming method thereof; the molding method comprises the following steps: stamping the circular metal plate to form a hat-shaped structure; step two: drawing and forming the cap-shaped structure for many times to finally form a tubular structure; step three: processing or cutting off one open end of the tubular structure to form a first end face; step four: punching a positioning groove on the end face; then positioning the tubular structure by clamping the positioning groove, and punching a plurality of through holes on the side surface of one end of the tubular structure seal; step five: cutting off one end of the opening of the tubular structure to form a second end surface, and completely cutting off the positioning groove to finally form a finished product of the air guide sleeve; step six: and (5) shaping treatment and detection by adopting ultrasonic flaw detection. The air bag air guide sleeve and the forming method thereof effectively improve the structural strength and the sealing property of the air guide sleeve.
Description
Technical Field
The invention relates to the technical field of airbag part processing, in particular to an airbag air guide sleeve and a forming method thereof.
Background
Airbags are important devices for protecting occupants in the event of a collision accident in a motor vehicle. The current inflation mode used by the automobile safety air bag is that gas with high temperature and high pressure is generated by igniting gas generating drug ingots, and is mixed with low-temperature high-pressure gas in a gas cylinder and then is guided into the safety air bag, and a flow guide cover is needed to be arranged between the safety air bag and the gas cylinder to guide the gas, so that the gas can quickly enter the air bag.
The existing air guide sleeve structure is shown in figure 1, the air guide sleeve is integrally of a tubular structure with one end sealed and the other end open, a plurality of through holes are formed in the side face of one end of the seal, and gas enters from the opening and then is discharged from the through holes in the side face. Because the kuppe structure is whole longer, consequently current kuppe can part the preparation with seal structure and body structure, and seal structure passes through the machine-shaping, and the body structure passes through pultrusion, and later with two parts through the welding even integrative kuppe that forms wholly. But the sealing performance of the welding part is difficult to guarantee, the strength is poor, the welding part is easy to damage and fall off under the impact of high-pressure gas, the normal work of the flow guide cover is influenced, and finally danger is caused.
In view of the above problems, the present inventors have actively researched and innovated based on practical experience and professional knowledge that are abundant over many years in engineering application of such products and in cooperation with the application of theory, and have provided an airbag dome and a molding method thereof, which effectively improve the structural strength and the sealing property of the dome and ensure the safety of the airbag.
Disclosure of Invention
The invention aims to provide an air bag air guide sleeve and a forming method thereof aiming at the defects in the prior art, and solves the problems that the air guide sleeve in the prior art has poor structural strength and is easy to cause danger due to the existence of a welded and formed connecting part.
In order to achieve the above object, the present invention provides an airbag dome molding method, comprising the steps of:
the method comprises the following steps: cutting the metal plate into a round shape; then, stamping the round metal plate to bend the round metal plate to form a hat-shaped structure;
step two: drawing and forming the cap-shaped structure for many times to finally form a tubular structure with one end sealed and the other end open;
step three: processing or cutting off one end of the opening of the tubular structure to form a first end surface perpendicular to the central axis of the tubular structure;
step four: punching a positioning groove on the end face; then positioning the tubular structure by clamping the positioning groove, and punching a plurality of through holes on the side surface of one end of the tubular structure seal;
step five: cutting off one end of the opening of the tubular structure to form a second end surface perpendicular to the central axis of the tubular structure, and completely cutting off the positioning groove to finally form a finished air guide sleeve product;
step six: and (5) shaping, and performing quality detection on the finished product of the air guide sleeve by adopting ultrasonic flaw detection.
Further, in the first step and the second step, the opening edge of the hat-shaped structure is provided with a folded edge which is folded outwards.
Further, the hem includes straightway and arc line segment, and the straightway forms the contained angle with the central axis of cap shape structure.
Furthermore, in the first step and the second step, a round corner structure is arranged between the side surface of the cap-shaped structure and the sealing end.
Further, in the first step, the ratio of the diameter of the cap-shaped structure to the diameter of the circular metal plate is 0.5-0.6.
Further, in the second step, when the hat-shaped structure is subjected to multiple drawing forming, the ratio of the diameter of the hat-shaped structure after each drawing to the diameter of the hat-shaped structure before drawing is 0.75-0.85.
Further, in the fourth step, the plurality of through holes are divided into a plurality of hole groups, and the through holes in each hole group are uniformly distributed along the circumferential direction of the tubular structure.
Further, the through holes between the plurality of hole groups are arranged to be staggered with each other in the length direction of the tubular structure.
Furthermore, when punching the through holes of each hole group, half of the number of the through holes of each hole group are uniformly punched along the circumferential direction of the tubular structure, and then a through hole is punched between every two adjacent through holes to finally form a complete hole group.
The invention also provides an air bag air guide sleeve which is characterized by being manufactured by the air bag air guide sleeve forming method and comprising a tubular structure with one end sealed and the other end opened, and a plurality of through holes arranged on the side surface of one end of the tubular structure close to the seal.
Through the technical scheme of the invention, the following technical effects can be realized:
the air guide sleeve manufactured by the method is integrally of an integral structure, and no splicing seam is formed on the air guide sleeve, so that the structural strength and the sealing property of the air guide sleeve are effectively improved, and the safety of the safety air bag is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conventional air guide sleeve in the background art of the present invention;
FIG. 2 is a process diagram illustrating a first step of a method of forming an airbag cushion in accordance with an embodiment of the present invention;
FIG. 3 is a schematic process diagram illustrating a second step of the airbag dome forming method according to an embodiment of the present invention;
FIG. 4 is a process diagram illustrating a third step of the airbag dome forming method according to the embodiment of the present invention;
FIG. 5 is a process diagram illustrating a fourth step of the airbag dome forming method according to an embodiment of the present invention;
FIG. 6 is a schematic process diagram illustrating a fifth step of a method of forming an airbag dome according to an embodiment of the present invention;
FIG. 7 is a schematic view illustrating a process of punching a through-hole in the airbag dome molding method according to the embodiment of the present invention;
reference numerals: the structure comprises a circular metal plate 1, a cap-shaped structure 2, a tubular structure 3, a first end face 4, a positioning groove 5, a through hole 6, a second end face 7, a folded edge 8, a straight line segment 81, an arc segment 82 and a fillet structure 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
A method for forming an air bag deflector comprises the following steps:
the method comprises the following steps: cutting the metal plate into a round shape; then, stamping the round metal plate 1 to bend the round metal plate to form a hat-shaped structure 2; because the air guide sleeve is in a shape with longer length and smaller diameter, and the circular metal plate 1 is in a shape with larger diameter, the circular metal plate 1 is subjected to larger shape mutation due to the one-step forming of a die in the traditional manufacturing process, and is easy to wrinkle or damage in the bending process; according to the method, the circular metal plate 1 is firstly punched into the cap-shaped structure 2, the cap-shaped structure 2 is in a transition shape between the circular metal plate 1 and the air guide sleeve, so that the circular metal plate 1 cannot be deformed too much, and wrinkles or cracks of parts are prevented; the ratio between the diameter of the cap-shaped structure 2 and the diameter of the circular metal plate is 0.5-0.6, preferably about 0.5, and the ratio can enable the diameter of the cap-shaped structure 2 to be closer to a finished product of the air guide sleeve under the condition that the parts are not wrinkled or cracked, so that the subsequent processing times are reduced, and the efficiency is improved.
Step two: drawing and forming the cap-shaped structure 2 for multiple times, wherein the ratio of the diameter of the cap-shaped structure 2 after each drawing to the diameter of the cap-shaped structure 2 before drawing is 0.75-0.85, so that the cap-shaped structure 2 gradually forms a tubular structure 3 with one end sealed and the other end open; through multiple times of drawing, the size of the part of the cap-shaped structure 2 can be gradually changed into the size of the tubular structure 3, and the sudden change of the shape and the size is further avoided, so that the drawing yield is effectively improved; the ratio of the diameter of the hat-shaped structure 2 after each drawing to the diameter of the hat-shaped structure 2 before drawing is kept within a certain range, so that the deformation degree of the material of the hat-shaped structure 2 is ensured to be not greatly different during each drawing, and the damage to the hat-shaped structure 2 can be further prevented; the ratio is preferably 0.8, and the optimal yield can be obtained at the ratio.
Step three: machining or cutting off an open end of the tubular structure 3 to form a first end face 4 perpendicular to the central axis of the tubular structure 3; since the steps are all processing the planar circular metal plate 1 into the tubular structure 3, the end face of the opening end inevitably has certain unevenness, and therefore, the flat first end face 4 is processed through the steps, so that the subsequent processing is facilitated.
Step four: punching a positioning groove 5 on the end face; later fix a position tubular structure 3 through blocking constant head tank 5, later seal the side of one end at tubular structure 3 and dash out a plurality of through-hole 6, block behind the constant head tank 5 can prevent effectively that tubular structure 3 from taking place to rotate the position that leads to through-hole 6 and appearing the deviation at the in-process that dashes out through-hole 6.
Step five: and cutting off one open end of the tubular structure 3 to form a second end surface 7 perpendicular to the central axis of the tubular structure 3, and completely cutting off the positioning groove 5 to finally form the finished air guide sleeve.
Step six: and (4) shaping, performing quality detection on the finished air guide sleeve product by adopting ultrasonic flaw detection, and checking whether a gap or a crack exists in the finished air guide sleeve product, so that defective air guide sleeve products are prevented from flowing out.
Preferably, in the first step and the second step, the opening edge of the cap-shaped structure 2 is provided with a folded edge 8 which is folded outwards, and the folded edge 8 can generate a guiding effect on the mold to prevent the mold from crushing the side wall of the cap-shaped structure 2. The fold 8 preferably comprises a straight section 81 and an arc section 82, the straight section 81 forming an angle with the central axis of the cap-shaped structure 2, by means of which the fold 8 is less prone to damage during drawing.
Preferably, in the first step and the second step, a round corner structure 9 is arranged between the side surface of the cap-shaped structure 2 and the sealing end, so that damage to parts caused by abrupt angles in the processes of stamping and drawing is avoided.
Preferably, in the fourth step, the plurality of through holes 6 are divided into a plurality of hole groups, the through holes 6 in each hole group are uniformly distributed along the circumferential direction of the tubular structure 3, so that high-pressure gas in the air guide sleeve can flow out through the plurality of through holes 6 when the air guide sleeve is used, and the rapid inflation of the air bag is ensured. Through holes 6 among the hole groups are arranged in a staggered mode in the length direction of the tubular structure 3, and therefore the high-pressure gas of the air guide sleeve can generate thrust in all directions of the air guide sleeve when flowing out, and therefore the stability of the air guide sleeve is guaranteed.
When punching the through holes 6 of each hole group, preferably, half the number of the through holes 6 of each hole group are uniformly punched along the circumferential direction of the tubular structure 3, and then one through hole 6 is punched between every two adjacent through holes 6 to finally form a complete hole group, so that the tubular structure 3 can be effectively prevented from being skewed in the punching process. However, if the common continuous punching manner is adopted when punching the through holes 6, the distance between two adjacent through holes 6 that are punched first is too small, so that the side wall of the through hole is easily deformed when punching the opposite through hole 6 subsequently, and the shape of the tubular structure 3 is affected.
The invention also relates to an air bag air guide sleeve which is manufactured by using the air bag air guide sleeve forming method and comprises a tubular structure 3 with one end sealed and the other end opened, and a plurality of through holes 6 are arranged on the side surface of one end, close to the seal, of the tubular structure 3, the air guide sleeve is integrally formed, and no splicing seam is formed on the air guide sleeve, so that the structural strength and the sealing property of the air guide sleeve are effectively improved, and the safety of an air bag is ensured.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A method of forming an airbag pod comprising the steps of:
the method comprises the following steps: cutting the metal plate into a round shape; then, stamping the round metal plate (1) to bend the round metal plate to form a hat-shaped structure (2);
step two: drawing and forming the cap-shaped structure (2) for multiple times to finally form a tubular structure (3) with one end sealed and the other end open by the cap-shaped structure (2);
step three: processing or cutting off one open end of the tubular structure (3) to form a first end face (4) perpendicular to the central axis of the tubular structure (3);
step four: punching a positioning groove (5) on the end face; then positioning the tubular structure (3) by clamping the positioning groove (5), and punching a plurality of through holes (6) on the side surface of one sealed end of the tubular structure (3);
step five: cutting off one end of the opening of the tubular structure (3) to form a second end surface (7) perpendicular to the central axis of the tubular structure (3), and completely cutting off the positioning groove (5) to finally form a finished air guide sleeve product;
step six: and (5) shaping, and performing quality detection on the finished product of the air guide sleeve by adopting ultrasonic flaw detection.
2. The airbag pod molding method according to claim 1, wherein in the first and second steps, the opening edge of the hat structure (2) is provided with a folded edge (8) that is folded outward.
3. The method of claim 2, wherein the fold (8) comprises a straight segment (81) and an arc segment (82), the straight segment (81) forming an angle with the central axis of the cap structure (2).
4. The method for forming an airbag dome according to claim 1, wherein in the first step and the second step, a rounded corner structure (9) is provided between the side surface and the closed end of the cap structure (2).
5. The airbag flow guide cover forming method according to claim 1, wherein in the first step, the ratio of the diameter of the cap structure (2) to the diameter of the circular metal plate is 0.5 to 0.6.
6. The method for forming the air bag deflector according to claim 1, wherein in the second step, when the hat-shaped structure (2) is subjected to drawing forming for multiple times, the ratio of the diameter of the hat-shaped structure (2) after each drawing to the diameter of the hat-shaped structure (2) before drawing is 0.75-0.85.
7. The method of claim 1, wherein in the fourth step, the plurality of through holes (6) are divided into a plurality of hole groups, and the through holes (6) in each hole group are uniformly distributed along the circumferential direction of the tubular structure (3).
8. The method of claim 7, wherein the through holes (6) between the plurality of hole groups are arranged to be offset from each other in a longitudinal direction of the tubular structure (3).
9. The method of claim 7, wherein when punching the through holes (6) of each hole group, half of the number of the through holes (6) of each hole group are punched uniformly along the circumference of the tubular structure (3), and then one through hole (6) is punched between every two adjacent through holes (6) to finally form a complete hole group.
10. An airbag fairing produced by the method according to any of claims 1-9, comprising a tubular structure (3) closed at one end and open at the other end, and a plurality of through holes (6) arranged in the tubular structure (3) on the side of the end close to the closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618952.6A CN114226538B (en) | 2021-12-27 | 2021-12-27 | Air bag guide sleeve and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111618952.6A CN114226538B (en) | 2021-12-27 | 2021-12-27 | Air bag guide sleeve and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114226538A true CN114226538A (en) | 2022-03-25 |
| CN114226538B CN114226538B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111618952.6A Active CN114226538B (en) | 2021-12-27 | 2021-12-27 | Air bag guide sleeve and forming method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114226538B (en) |
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|---|---|---|---|---|
| CN1603023A (en) * | 2004-11-02 | 2005-04-06 | 李会银 | Impact forming method for hydraulic valve end shield |
| JP2010143562A (en) * | 2009-04-02 | 2010-07-01 | Miyata:Kk | Inflator for airbag, its case, and method of manufacturing inflator for airbag |
| CN101767139A (en) * | 2010-03-04 | 2010-07-07 | 刘江 | Stroke processing method of ultrathin cylinder stainless steel tube film for printer and duplicator |
| WO2012050274A1 (en) * | 2010-10-13 | 2012-04-19 | (주)디에이치메탈코리아 | Method for manufacturing an air tank, and air tank manufactured by the method |
| CN103978101A (en) * | 2014-05-30 | 2014-08-13 | 贵州航天精工制造有限公司 | Machining method for protection cover part |
| CN206373219U (en) * | 2016-11-23 | 2017-08-04 | 常州工利精机科技有限公司 | Gas generator kuppe side opening diel |
| KR101790768B1 (en) * | 2016-08-12 | 2017-10-26 | 주식회사 일광엠씨티 | Inflator cap for the air bag and manufacturing method thereof |
| CN207787406U (en) * | 2018-01-08 | 2018-08-31 | 伟业精密科技（惠州）有限公司 | Air-cushion inflator shell one is into having more reverse-drawing stamping system |
| CN109604472A (en) * | 2018-12-09 | 2019-04-12 | 中国航发南方工业有限公司 | A kind of sleeve manufacturing process |
| CN112658117A (en) * | 2020-12-25 | 2021-04-16 | 江苏浩峰汽车附件有限公司 | Processing technology of air guide sleeve for safety airbag |
-
2021
- 2021-12-27 CN CN202111618952.6A patent/CN114226538B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603023A (en) * | 2004-11-02 | 2005-04-06 | 李会银 | Impact forming method for hydraulic valve end shield |
| JP2010143562A (en) * | 2009-04-02 | 2010-07-01 | Miyata:Kk | Inflator for airbag, its case, and method of manufacturing inflator for airbag |
| CN101767139A (en) * | 2010-03-04 | 2010-07-07 | 刘江 | Stroke processing method of ultrathin cylinder stainless steel tube film for printer and duplicator |
| WO2012050274A1 (en) * | 2010-10-13 | 2012-04-19 | (주)디에이치메탈코리아 | Method for manufacturing an air tank, and air tank manufactured by the method |
| CN103978101A (en) * | 2014-05-30 | 2014-08-13 | 贵州航天精工制造有限公司 | Machining method for protection cover part |
| KR101790768B1 (en) * | 2016-08-12 | 2017-10-26 | 주식회사 일광엠씨티 | Inflator cap for the air bag and manufacturing method thereof |
| CN206373219U (en) * | 2016-11-23 | 2017-08-04 | 常州工利精机科技有限公司 | Gas generator kuppe side opening diel |
| CN207787406U (en) * | 2018-01-08 | 2018-08-31 | 伟业精密科技（惠州）有限公司 | Air-cushion inflator shell one is into having more reverse-drawing stamping system |
| CN109604472A (en) * | 2018-12-09 | 2019-04-12 | 中国航发南方工业有限公司 | A kind of sleeve manufacturing process |
| CN112658117A (en) * | 2020-12-25 | 2021-04-16 | 江苏浩峰汽车附件有限公司 | Processing technology of air guide sleeve for safety airbag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114226538B (en) | 2024-04-26 |
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