CN106270279A - A kind of gas generator shaped device and forming method - Google Patents
A kind of gas generator shaped device and forming method Download PDFInfo
- Publication number
- CN106270279A CN106270279A CN201610687208.4A CN201610687208A CN106270279A CN 106270279 A CN106270279 A CN 106270279A CN 201610687208 A CN201610687208 A CN 201610687208A CN 106270279 A CN106270279 A CN 106270279A
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- Prior art keywords
- positioning seat
- shaped device
- closing
- igniter
- base
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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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a kind of gas generator shaped device, including igniter shaped device and finished product shaped device；Igniter shaped device and finished product shaped device are used to mould and the positioning seat closed up, positioning seat is used for firm banking or semi-finished product, mould has the tubular construction of hollow structure and one end open, can move up and down relative to positioning seat, it is provided with loop concave at mould openings, closes up for base or product are extruded.The invention also discloses its forming method, squib or igniter are fixed on base, start press, mould relative localization seat moves up and down, and utilizes the loop concave of mould to extrude base or product, pressurize certain time, takes out the product assembled.Automaticity of the present invention is high, simple in construction, can carry out the molding of gas generator high-effect high-quality, alleviate the burden of manpower.Apparatus of the present invention also elastic force further with elastomeric element realizes automatically taking out of product.
Description
Technical field
The invention belongs to gas generator technology field, be specifically related to a kind of gas generator shaped device, and relate to
The forming method of this shaped device.
Background technology
Seat belt is known as " life zone " of automobile, and it plays important protective effect to the personal safety of driver and crew,
Its major function is experience accident limit driver or the displacement of passenger, it is to avoid the collision of occupant and other positions of car body occurs
Injury, the reduction accident extent of injury to occupant.Belt with pre-load device is one of the most a wide range of currently used seat belt, pretension
The feature of formula seat belt be when collision scenario accident in a flash, when occupant not yet moves forward, first it can strain safety
Band, " ties up " on the seat tightly by occupant immediately, and then locking seat belt prevents occupant from leaning forward, and effectively protects occupant's
Safety.
Gas generator (being called for short MGG) is mainly used in belt with pre-load device, and when automobile generation strong collision, gas is sent out
Raw device point is fought and is produced a large amount of high temperature and high pressure gas, thus drives seat belt driving wheel to rotate, and makes seat belt be rolled up on reel,
Last lock in emergency coiler locking seat belt so that the Distance Shortened that driver and crew move forward, reaches the effect of protection.Gas
Body generator is the core component of belt with pre-load device, and the MGG product that the quality of production is qualified just seems extremely crucial.
Gas generator includes igniter, the part such as shell equipped with gas generant composition in accordance, as it is shown in figure 1, base has for will
Squib and base close up and form the closing in end I of igniter, and for the closing in end II that igniter and shell are closed up.Receive
During mouth, closing in end I curves inwardly, and wraps squib, completes igniter and closes up；Then closing in end II curves inwardly, with pipe
Faucal portion hooks together, completes finished product and closes up.Existing closing device automaticity is low, often needs human assistance to complete；And
After closing in, igniter and product take out more difficult from closing device, reduce shaping efficiency.Accordingly, it would be desirable to work out one
Can quickly, high-quality complete the device of MGG formed product.
Summary of the invention
It is an object of the invention to provide a kind of gas generator shaped device, solve existing shaped device automaticity
The problem that low and product takes out difficulty.
It is a further object of the present invention to provide the method utilizing above-mentioned shaped device forming gas generator.
The technical solution adopted in the present invention is, a kind of gas generator shaped device, including igniter shaped device and
Finished product shaped device；
Igniter shaped device is used for squib and the closing in of base, forms igniter, including upper mold and positioning seat I,
Positioning seat I is used for firm banking；Upper mold is positioned at above positioning seat I, for having the tubular construction of hollow structure and lower openings, with
Press is connected, and moves up and down under the control of press above positioning seat I；At upper mold lower ending opening, internal diameter closes up slightly larger than base
Holding the width before I closing in, and its opening part is provided with loop concave I, the shape of loop concave I is kissed with squib outer wall shape
Close.
Finished product shaped device is for the closing in of igniter with shell, and including positioning seat II and lower mold, positioning seat II is inverted, and uses
In fixing igniter, and it is connected with press, moves up and down under the control of press；Lower mold is positioned at below positioning seat II, for having
Hollow structure and the tubular construction of upper opening, its cavity inner wall matches with shell outer wall, and lower mold upper opening has annular
Concave surface II, the shape after the shape of loop concave II closes up with base closing in end II is coincide.
The feature of this device also resides in:
The loop concave I of upper mold is by being arranged at the annular protrusion of bottom in upper cavity body and coupled cavity inner wall shape
Become.
Further, being from top to bottom provided with elastomeric element I and push rod I in upper cavity body, push rod I is positioned at annular protrusion
Top, is matched in clearance with upper mold cavity inner wall, and its width is more than annular protrusion internal diameter；Elastomeric element I is placed on push rod I
Surface.
Further, being provided with elastomeric element II and push rod II in lower mode cavity body from the bottom to top, elastomeric element II lays
In lower mode cavity body, push rod II is placed in above elastomeric element II, and is in matched in clearance, and push rod II with lower mold cavity inner wall
End face is less than shell height to the distance of lower mold upper opening.
Further, the shape of loop concave I is coincide with 88 °～110 ° angle faces shapes of squib；Described annular is recessed
Face II is shaped as annular circular arc concave surface, and radian is R1～R1.5, and cambered surface half-angle angle is 15 °～25 °.
Further, positioning seat I and positioning seat II is provided centrally with positioning hole or locating slot, is used for positioning squib.
Another technical scheme of the present invention is, uses the forming method of aforesaid gas generator shaped device,
Comprise the following steps:
S1, igniter closes up: is fixed on by base on the positioning seat I of finished product shaped device, and is fixed on by squib
On base, starting press, upper mold moves downward, and utilizes the loop concave I of upper mold to extrude base closing in end I, pressurize one
Fixing time, shed pressure, upper mold moves upward, and takes out the igniter assembled；
S2, finished product closes up: will be equipped with the shell opening up embedding lower mold cavity of gas generant composition in accordance, and step 1 is assembled
Igniter is fixed on positioning seat II, is inverted in lower mold by positioning seat II, makes shell opening embed in the closing in end II of base；
Starting press, positioning seat II moves down, and utilizes the loop concave II of lower mold to extrude the closing in end II of base, pressurize one
Fix time, shed pressure, remove positioning seat II, take out finished product.
Further, when be provided with in the upper cavity body of gas generator shaped device elastomeric element I as above and
Push rod I, when being provided with elastomeric element II as above and push rod II in lower mode cavity body, when igniter closes up, in upper mold
While the closing in end I of base is extruded by loop concave I, push rod I makes spring I produce deformation downwardly against squib；
After pressurize certain time sheds pressure, upper mold moves upward, and spring I restores to the original state, and ejects downwards the igniter assembled；Finished product
During closing in, while the closing in end II of base is extruded by the loop concave II of lower mold, shell makes downwardly against push rod II
Spring II produces deformation；After pressurize certain time sheds pressure, remove positioning seat II, spring II and restore to the original state, upwards ejected
Become the finished product closed up.
The pressure that said method is used when igniter closes up is 350kg～500kg, the pressure that finished product is used when closing up
Power is 700kg～1000kg.
Further, after fixing squib and base in the above-mentioned methods, squib and base closing in end I it
Between place sealing ring, then close up.
The invention has the beneficial effects as follows, the parts that assembly of the invention promotes loop concave to treat closing in by pressure are carried out
Extruding, completes the closing in of ideal form, and automaticity is high, can carry out the molding of gas generator high-effect high-quality, alleviate
The burden of manpower；And this apparatus structure is simple, the press apparatus of use is cheap, and processing charges is low, easy to operate, significantly
Improve shaping speed.Apparatus of the present invention also utilize the elastic force of elastomeric element to be ejected in mould by cuff products, it is achieved product
Automatically take out, simple in construction, it is easy to operation, solve existing closing device product take out difficulty problem.
Accompanying drawing explanation
Fig. 1 is gas generator design of part schematic diagram；Wherein a is squib, and b is base, and c is shell；
Fig. 2 is the structural representation of positioning seat I in igniter shaped device of the present invention；
Fig. 3 is the structural representation of igniter shaped device of the present invention；
Fig. 4 is the enlarged diagram in A portion in Fig. 3；
Fig. 5 is the structural representation of positioning seat II in finished product shaped device of the present invention；
Fig. 6 is the structural representation of finished product shaped device of the present invention；
Fig. 7 is the enlarged diagram in B portion in Fig. 6.
In figure, 1. squib, 2. base, 3. base closing in end I, 4. base closing in end II, 5. shell；
6. positioning seat I, 61. square projections, 62. blind holes；
7. upper mold, 71. annular protrusions, 72. loop concave I, 73. glands, 74. elastomeric element I, 75. push rod I；
8. positioning seat II, 81. rectangular recess；
9. lower mold, 91. loop concave II, 92. cover plates, 93. plugs, 94. elastomeric element II, 95. push rod II；
10. sealing ring.
Detailed description of the invention
The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings, but the present invention is not limited to
These embodiments.
The gas generator shaped device of the present invention includes igniter shaped device and finished product shaped device, and stream oriented device is supporting
Use.The structure of the gas generator shaped by this device includes squib 1, base 2, shell 5, respectively as Fig. 1 a, 1b,
Shown in 1c.
Igniter shaped device is used for being assembled together squib 1 and base 2, forms igniter, including upper mold 7 He
Positioning seat I 6.The structure of positioning seat I 6 as in figure 2 it is shown, its upper surface is provided with square protruding 61, its with base 2 on groove
Mating shapes, can be fixed on base 2 on positioning seat I 6, play the effect of positioning base 2.Meanwhile, in positioning seat I 6
The heart is designed with two blind holes 62, matches with two electrode needle of squib 1, the electrode needle inserted base 2 of squib 1
After, location squib just downwards in the corresponding blind hole 62 inserting positioning seat I 6, can be played in the electrode needle end that it exposes
The effect of 1.Upper mold 7 is positioned at the top of positioning seat I 6, as it is shown on figure 3, be the cylindrical shape knot with hollow structure and upper and lower opening
Structure, it is connected with press, can move up and down under the control of press above positioning seat I 6.At upper mold 7 cavity lower ending opening
Large diameter is slightly larger than the Breadth Maximum before base closing in end I 3 closing in, and base closing in end I 3 can be contained in cavity.Upper mold 7 chamber
Internal bottom is provided with the annular protrusion 71 for closing up, the lower surface of annular protrusion 71 and coupled cavity inner wall and is formed
Loop concave I 72, the shape of loop concave I 72 matches with squib 1 outer wall shape, and as shown in Figure 4, upper mold 7 is downward
During motion, loop concave I 72 extrudes base closing in end I 3, utilizes the shape of loop concave I 72 to make base closing in end I 3 tight
Hard-pressed bale wraps squib 1 (88 °～110 °) angle faces (full-shape), completes to close up.Owing to the shape at squib 1 closing in is many
Based on angle, being aided with the circular arc R 1.5～R2.5 (mm) of transition, therefore, upper mold 7 shape that closes up matches therewith, with angle is
Main, it is auxiliary with arc transition.
Igniter is taken out, as it is shown on figure 3, be provided with gland 73, elastomeric element I in upper mold 7 cavity after closing up for convenience
74 and push rod I 75.Upper mold 7 is threaded connection be connected fixing with gland 73, makes upper mold 7 top form enclosed construction.Push rod I
75 are positioned in the middle of gland 73 and annular protrusion 71, are matched in clearance with upper mold 7 cavity inner wall, and its width is more than annular protrusion 71
Internal diameter, elastomeric element I 74 is arranged between gland 73 and push rod I 75, and is connected with push rod I 75 upper surface.Gland 73 along with
Upper mold 7 moves downward, and transfers force to push rod I 75 by spring, makes push rod that squib 1 is produced downward pressure, elastic
Parts I 74 is squeezed deformation；Upper mold 7 completes closing in when moving upward, and elastomeric element I 74 restores to the original state and push rod I relatively
75 apply downward elastic force, make push rod I 75 that igniter to eject downwards upper mold 7, it is achieved Automatic-falling.
Finished product shaped device is used for being assembled together the igniter assembled with shell 5, including positioning seat II 8 with under
Mould 9.Structure and the shape of positioning seat II 8 are essentially the same with positioning seat I 6, and its structure is as it is shown in figure 5, have for fixing the end
Square protruding the 61 of seat 2, difference is, during use, positioning seat II 8 is inversion relative to positioning seat I 6, and its centralized positioning
Be shaped as rectangular recess 81, i.e. its rectangular recess 81 times to, the igniter assembled inverted can be fixed on positioning seat II 8
On.It addition, positioning seat II 8 is connected with press, under the control of press, positioning seat II 8 moves up and down above lower mold 9.Lower mold
9 lower sections being positioned at positioning seat II 8, as shown in Figure 6, lower mold 9 for having the columnar structured of hollow structure and upper and lower opening, under
Mould 9 upper opening edge indent, forms loop concave II 91, and the shape of this loop concave II 91 is intended with base closing in end II 4
After the closing in formed, shape is consistent, and after generally closing up, outer wall is shaped as circular arc, and radian is R1～R1.5 (mm), therefore loop concave
II 91 is shaped as circular arc R 1～R1.5, and tighter in order to close up, the half-angle angle design of cambered surface is 15 °～25 °, such as Fig. 7 institute
Show.Lower mold 9 cavity inner wall mates with shell 5 outer wall, and shell 5 is contained in lower mold 9 cavity just.Positioning seat II 8 drives ignition
When body moves downward, when base closing in end II 4 runs into lower mold 9 loop concave, bend under the extruding of loop concave II, and with
Shell 5 opening tightens up, and completes to close up.
Being provided with cover plate 92 at lower mold 9 lower ending opening, and connect with screw, as shown in Figure 6, cover plate 92 is threaded connection
There is plug 93, make lower mold 9 bottom form enclosed construction.Plug 93 upper surface is placed or is fixed with elastomeric element II 94, elastic
Part II 94 upper ends or be fixed with push rod II 95, push rod II 95 and lower mold 9 cavity inner wall are matched in clearance, and push rod II
95 upper surfaces are less than shell 5 height, when shell 5 puts into lower mold 9, with push rod II 95 bottom it to the distance of lower mold 9 upper opening
Contact, open top is higher than lower mold 9 upper opening.When press applies downward active force to positioning seat II 8, positioning seat II
8 downward active forces pass to assemble the igniter put in place and shell 5, drive shell 5 also to move downward, shell 5 contact top
Bar II 95 also applies down force to it, and this active force makes elastomeric element II 94 produce compression, when having closed up, unloads
Remove press pressure, remove positioning seat II 8, elastomeric element II 94 and restore to the original state, push rod II 95 is produced upwards active force, should
Active force is delivered to shell 5, and the finished product closed up, under the effect of elastomeric element II 94 elastic force, pops up lower mold automatically
9, so far complete closing in and the assembling of whole product.
The elastic parameter of the elastomeric element I 74 and elastomeric element II 94 of the present invention is to affect product to remove and product quality
With the key factor of safety, elastomeric element of the present invention uses spring, such as igniter, if the diameter dimension mistake of spring
Big and pitch is too small, then gland vertical adjustment amount is little, and the lower surface of closing in after-fire body there will be deformation, swollen footpath problem, and
Fire cognition drops suddenly from upper mold cavity, directly influences safety and the presentation quality of product.If the diameter dimension mistake of spring
Little and pitch is excessive, then gland vertical adjustment amount is big, and the active force that push rod is transmitted by closing in rear spring is the least, and igniter is not enough to
Overcome the frictional force between itself and upper mold cavity, it is difficult to Automatic-falling, reduce the efficiency closed up.Therefore, suitably elasticity is selected
Parts are most important.The pitch of spring I of the present invention and spring II is preferably 3mm～4mm, the diameter of spring be preferably 1mm～
1.5mm, the spring of this size can realize igniter automatic spring products quality guarantee.
Use assembly of the invention forming gas generator, specifically follow the steps below:
S1, igniter closes up: is fixed on the positioning seat I 6 of finished product shaped device by base 2, and is led to by squib 1
Crossing blind hole 62 to be accurately fixed on base 2, start press, upper mold 7 moves downward, and utilizes upper mold inwall annular protrusion 71 and die cavity
Base closing in end I 3 is extruded by the shape of the loop concave I of inwall, and by push rod I 75 downwardly against squib 1
Making spring I produce deformation, pressurize certain time, complete to close up, shed pressure, upper mold 7 moves upward, and spring I restores to the original state, to
Under eject the igniter assembled.
S2, finished product closes up: will be equipped with shell 5 opening up embedding lower mold 9 cavity of gas generant composition in accordance, and the ignition that will assemble
Body is accurately fixed on the positioning seat II 8 of finished product shaped device by rectangular recess 81, and positioning seat II 8 is inverted in lower mold 9
On, in making the annular groove of closing in end I and closing in end II of shell 5 opening embedding base.Starting press, positioning seat II 8 drives
Igniter, shell 5 move down, and utilize the loop concave shape at lower mold upper opening to extrude the closing in end II of base 2, make
Closing in end II and shell 5 complete to close up；Shell 5 contacts push rod II 95 and applies pressure to spring II simultaneously, makes spring II produce
Deformation, pressurize sheds pressure after certain time, removes positioning seat II 8, spring II and restores to the original state, has upwards ejected closing in
Finished product.
The pressure that this method utilizes upper mold 7 to be used when closing up igniter is 350kg～500kg, utilizes lower mold 9 to close up
The pressure used during finished product is 700kg～1000kg.At this pressure, the sealing of guarantee semi-finished product, finished product；Ensure
The quality of cuff products.
Further, between squib 1 and base closing in end I 3, it is provided with sealing ring 10, igniter can be strengthened and receive
Sealing effectiveness after Kou, makes the better tightness of closing in after-fire body.
Apparatus of the present invention compare the advantage of traditional method with method: good airproof performance after closing in, and end product quality is guaranteed, raw
Product efficiency is high.
Above description of the present invention is section Example, but the invention is not limited in above-mentioned detailed description of the invention.
Above-mentioned detailed description of the invention is schematic, is not restrictive.Every employing apparatus and method of the present invention, is not taking off
In the case of present inventive concept and scope of the claimed protection, all concrete expansions all belong to protection scope of the present invention it
In.
Claims (10)
1. a gas generator shaped device, it is characterised in that include igniter shaped device and finished product shaped device；
Igniter shaped device is used for squib and the closing in of base, forms igniter, including upper mold and positioning seat I, location
Seat I is for firm banking；Upper mold is positioned at above positioning seat I, for having the tubular construction of hollow structure and lower openings, with press
It is connected, moves up and down above positioning seat I under the control of press；At upper mold lower ending opening, internal diameter is slightly larger than base closing in end I
Width before closing in, and its opening part is provided with loop concave I, the shape of loop concave I is coincide with squib outer wall shape；
Finished product shaped device is for the closing in of igniter with shell, and including positioning seat II and lower mold, positioning seat II is inverted, for solid
Determine igniter, and be connected with press, move up and down above lower mold under the control of press；Lower mold is positioned at below positioning seat II,
For having the tubular construction of hollow structure and upper opening, its cavity inner wall matches with shell outer wall, and lower mold upper opening has
Shape after having loop concave II, the shape of loop concave II to close up with base closing in end II is coincide.
Gas generator shaped device the most according to claim 1, it is characterised in that the loop concave I of described upper mold by
The annular protrusion and the coupled cavity inner wall that are arranged at bottom in upper cavity body are formed.
Gas generator shaped device the most according to claim 2, it is characterised in that in described upper cavity body from top to bottom
Being provided with elastomeric element I and push rod I, push rod I is positioned at above annular protrusion, is matched in clearance with upper mold cavity inner wall, and it is wide
Degree is more than annular protrusion internal diameter；Elastomeric element I is placed in push rod I upper surface.
Gas generator shaped device the most according to claim 1, it is characterised in that in described lower mode cavity body from the bottom to top
Being provided with elastomeric element II and push rod II, elastomeric element II is placed in lower mode cavity body, and push rod II is placed on elastomeric element II
Side, and is matched in clearance with lower mold cavity inner wall, and push rod II upper surface is less than shell height to the distance of lower mold upper opening.
5. according to the gas generator shaped device according to any one of claim 1-4, it is characterised in that described loop concave
The shape of I is coincide with 88 °～110 ° angle faces shapes of squib；Described loop concave II is shaped as annular circular arc concave surface,
Radian is R1～R1.5, and cambered surface half-angle angle is 15 °～25 °.
6. according to the gas generator shaped device according to any one of claim 1-4, it is characterised in that described positioning seat I
It is provided centrally with positioning hole or locating slot with positioning seat II, is used for positioning squib.
7. the forming method using claim 1 or 2 gas generator shaped device, it is characterised in that include following step
Rapid:
S1, igniter closes up: be fixed on by base on the positioning seat I of finished product shaped device, and squib is fixed on base
On, starting press, upper mold moves downward, and utilizes the loop concave I of upper mold to extrude base closing in end I, pressurize one timing
Between, shedding pressure, upper mold moves upward, and takes out the igniter assembled；
S2, finished product closes up: will be equipped with the shell opening up embedding lower mold cavity of gas generant composition in accordance, and ignition step 1 assembled
Body is fixed on positioning seat II, is inverted in lower mold by positioning seat II, makes shell opening embed in the closing in end II of base；Start
Press, positioning seat II moves down, and utilizes the loop concave II of lower mold to extrude the closing in end II of base, pressurize one timing
Between, shed pressure, remove positioning seat II, take out finished product.
Forming method the most according to claim 7, it is characterised in that the upper mold cavity of described gas generator shaped device
Inside it is provided with elastomeric element I as claimed in claim 3 and push rod I, in lower mode cavity body, is provided with bullet as claimed in claim 4
Property parts II and push rod II；
Igniter close up time, while the closing in end I of base is extruded by the loop concave I of upper mold, push rod I downwardly against
Squib makes spring I produce deformation；After pressurize certain time sheds pressure, upper mold moves upward, and spring I restores to the original state, to
Under eject the igniter assembled；
Finished product close up time, while the closing in end II of base is extruded by the loop concave II of lower mold, shell downwardly against
Push rod II makes spring II produce deformation；After pressurize certain time sheds pressure, remove positioning seat II, spring II and restore to the original state, to
On ejected close up finished product.
9. according to the forming method described in claim 7 or 8, it is characterised in that the pressure that igniter is used when closing up is
350kg～500kg, the pressure that finished product is used when closing up is 700kg～1000kg.
10. according to the forming method described in claim 7 or 8, it is characterised in that after fixing squib and base, at electricity
Place sealing ring between ignitron and base closing in end I, then close up.
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| CN201610687208.4A CN106270279B (en) | 2016-08-18 | 2016-08-18 | A kind of gas generator shaped device and forming method |
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| CN201610687208.4A CN106270279B (en) | 2016-08-18 | 2016-08-18 | A kind of gas generator shaped device and forming method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188232A (en) * | 2018-01-09 | 2018-06-22 | 伟业精密科技（惠州）有限公司 | Air-cushion inflator drawing closing in moulding process |
| CN110270614A (en) * | 2018-03-13 | 2019-09-24 | 湖北航鹏化学动力科技有限责任公司 | A kind of metal stamping flanging device |
| CN110814195A (en) * | 2019-10-31 | 2020-02-21 | 中航飞机起落架有限责任公司 | RWG bearing necking tool and necking method |
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| CN110814195A (en) * | 2019-10-31 | 2020-02-21 | 中航飞机起落架有限责任公司 | RWG bearing necking tool and necking method |
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