CN109099760A - A kind of air guide foresight unit and its manufacture craft - Google Patents
A kind of air guide foresight unit and its manufacture craft Download PDFInfo
- Publication number
- CN109099760A CN109099760A CN201811060064.5A CN201811060064A CN109099760A CN 109099760 A CN109099760 A CN 109099760A CN 201811060064 A CN201811060064 A CN 201811060064A CN 109099760 A CN109099760 A CN 109099760A
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- Prior art keywords
- foresight
- hole
- air guide
- mobile
- gun barrel
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000003754 machining Methods 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 14
- 238000007254 oxidation reaction Methods 0.000 claims description 14
- 238000005554 pickling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 244000144985 peep Species 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000009411 base construction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/32—Muzzle attachments or glands
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/02—Foresights
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/02—Foresights
- F41G1/033—Foresights adjustable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G11/00—Details of sighting or aiming apparatus; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling And Boring (AREA)
Abstract
A kind of air guide foresight unit, it is characterized by, it is by pedestal, Mobile base, foresight composition, pedestal bottom is gun barrel hole, the rear end on top is air guide room, connect the gas port between gun barrel hole and air guide room with both perforations, it is foresight fixing seat in the front end of pedestal, mobile bore is provided in foresight fixing seat, it is foresight relief hole above mobile bore, diameter is greater than foresight, it is topmost front sight ring, there is decrement hole in the envisaged underneath of mobile bore, Mobile base is integrally cylindrical, it is fixed on the base with mobile bore interference fit, there is radial tapped through hole at middle part, foresight is fixed on tapped through hole, there are two positioning pin pilot holes for envisaged underneath in gun barrel hole.The configuration of the present invention is simple, small in size, light weight, two components of original are integrated by good reliability, make new components air guide foresight unit while having the function of former two components, the cost of raw material, processing cost have been saved by improving, and has improved production efficiency.
Description
Technical field
The present invention relates to the designs of firearms structure, more particularly, to air guide and foresight unit.
Background technique
As shown in Figure 1, it is two individual parts that the gas block 5 and foresight bed of traditional firearms, which combine 6, there is different function
Can, it is respectively assembled at the front end and middle part of gun barrel.As shown in Fig. 2, gas block 5 is by gun barrel hole 11, air guide room 12,13 structure of gas port
At, air guide room 12 is flowed to by the powder gases in guidance gun barrel, and as power, automatic machine is pushed to complete recoil movement,
And it is finally reached the purpose that automatic hull withdraw loads.As shown in figure 3, foresight bed is in conjunction with 6 by foresight 3, Mobile base 2 and 61 groups of foresight bed
At design has front sight ring, mobile bore, foresight relief hole, foresight bed gun barrel fixation hole etc. on foresight bed, reaches fixed and adjusts
Save the effect of foresight.Both parts are fixed on gun barrel by respective positioning pin pilot hole 51.Since both parts lack one
Can not, when designing the compact firearms of short arm pipe, there may be the normal performances of interference effect function for both parts position, if
Shorten gun barrel, foresight bed is bound to follow and move back, and gas block then influences moving back for foresight bed, they limit firearms to tight
The trend of the type that gathers development.
The manufacturing procedure of former gas block are as follows: two holes are processed in essence casting molding --- removing cast gate ---, and (gun barrel hole leads plenum openings, adds
Work rear end face (positioning surface)) --- boring dowel hole pilot hole, --- amendment T-slot --- remove chamfering --- drill and ream gas port --- by borehole cleaning
Burr --- --- --- finish ream and lead plenum openings and --- finish ream inclined-plane --- polishing --- liquid tumbling --- Surface Oxygen in hinge gun barrel hole by heat treatment
Change.Wherein there are 12 machining sequences.
The manufacturing procedure of former foresight bed are as follows: essence casting forms --- removing cast gate --- processing each portion in end face (processing front end facial plane
(positioning surface), foresight upper through-hole, gun barrel hole, foresight relief hole, observation slot, peep hole, lower part locating slot) --- drill and ream positioning
--- processing mobile bore, --- drawing mobile bore, --- removing each portion's burr, --- finish draw moves pin pilot hole for heat treatment --- hinge gun barrel hole ---
Dynamic bore --- Mobile base Hole chamfering -- polishing --- liquid tumbling --- surface oxidation.Share 11 machining sequences.
Two parts add up have 23 machining sequences in total, and the production time is long, at high cost, equipment and personnel occupancy is high.
Summary of the invention
It is an object of the invention to be designed as compact-sized, a good reliability, light-weight air guide foresight unit, it is same
When have the function of air guiding function and fixation and adjust foresight, with reach reduce mechanical part, mitigate firearms weight, shorten rifle
Tool length, the purpose being convenient for carrying.
The technical scheme adopted by the invention is that: a kind of air guide foresight unit is characterized by, it is by pedestal, movement
Seat, foresight composition, pedestal bottom are gun barrel holes, and the rear end on top is air guide room, and connecting has between gun barrel hole and air guide room
The gas port for penetrating through the two is foresight fixing seat in the front end of pedestal, and mobile bore, mobile bore are provided in foresight fixing seat
Top is foresight relief hole, and it is topmost front sight ring that diameter, which is greater than foresight, has decrement hole in the envisaged underneath of mobile bore,
Mobile base is integrally cylindrical, fixed on the base with mobile bore interference fit, there is radial tapped through hole, foresight at middle part
It is fixed on tapped through hole, there are two positioning pin pilot holes for the envisaged underneath in gun barrel hole.
The present invention is improved on the basis of existing gas block and foresight bed combine, and gas block and foresight bed are combined
It is combined into one, foresight bed is directly produced on gas block, at least can be shortened 83.4 to 126 millimeters of barrel length, improve firearms
Mobility, under the premise of not reducing firearms unfailing performance, reduce firearms components, mitigate firearms weight, reduce standard
The processing of constellation gun barrel fixation hole and fixed pin holes, and production cost can be reduced and improve the production efficiency of factory.
The foresight is integrally cylindrical, and lower part is stud, and it is topmost the column of diameter very little that middle part, which has platform,
Apex of front sight.
The stud of the foresight lower part has opening.
The opening of the foresight lower part stud is in " eight " fonts.
The manufacture craft route of pedestal of the invention are as follows:
A) essence casting forms, and produces monnolithic case and decrement hole;
B) cast gate is removed;
C) on the basis of the front end face A in gun barrel hole 11, positioning surface B is processed；
D) it is positioning with shape, gun barrel hole shape and the face B outside air guide room, mills flat pedestal front end face, makes it at a distance from mobile bore
Position is design value, then successively plenum openings, air guide room rear end face and oblique angle, gun barrel hole, gun barrel hole rear end surface chamfer, standard are led in processing
Star guard ring hole, foresight relief hole, observation slot, peep hole, lower end circular arc platform, two platform of lower end;
E) mobile bore and pin pilot hole are processed;
F) it bores and twists gas port;
G) each portion's burr is removed；
H) it is heat-treated；
I) it finish reams and leads plenum openings, finish reams gun barrel hole;
J) mobile bore is finish reamed
K) it polishes;
L) liquid tumbling;
M) surface black oxidation processes.
The machining sequence Zhong You 12 of former gas block machines sequence, and the machining Xu You 11 of former foresight bed machines sequence,
Two parts add up have 23 machining sequences in total, and air guide foresight unit of the present invention has only 10 machinings in machining sequence
Sequence saves machining sequence 13 compared to traditional structure, and machine adds about 1 times of improved efficiency.Machining equipment and personnel about reduce 1 times.
The e) processes mobile bore described in step and sells pilot hole and refer to and mill mobile bore, two end chamfers, bore two pin holes
Pilot hole.
H) heat treatment described in step refer to quenching, deoil, be tempered, pickling, sandblasting, polishing, inspection, correction, destressing,
Pickling, cleaning；Reach Rockwell hardness 38HRC-43HRC.
M) surface black oxidation processes described in step refer to oil removing twice, cleaning, pickling, cleaning twice, pre-oxidation,
Cleaning, alkaline oxygenated, amendment oxidation, cleaning, alkaline oxygenated, amendment oxidation, cleaning, flushing, hot water treatment, tar.
The beneficial effects of the present invention are: structure is simple, and small in size, light weight, good reliability, with the function of a components
While having reached the function of traditional two components, i.e. realization air guiding function, foresight position, and two kinds are also capable of fixing and adjusted
Function is not interfere with each other.By adjusting fit dimension, the present invention can adapt to the gas operated firearms of various bores and type.Compared to biography
Structure of uniting saves machining sequence 13, and machine adds about 1 times of improved efficiency.Machining equipment and personnel about reduce 1 times.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional firearms
Fig. 2 is traditional gas block structural schematic diagram
Traditional foresight bed integrated structure schematic diagram that Fig. 3 is
Fig. 4 is usage state diagram of the invention
Fig. 5 is structural schematic diagram of the invention
Fig. 6 is base construction schematic diagram of the invention
Fig. 7 is Mobile base structural schematic diagram
Fig. 8 is foresight structural schematic diagram
Wherein mobile 15 foresight relief hole of bore, 16 front sight ring 17 of 1 pedestal, 11 gun barrel hole, 12 air guide room, 13 gas port 14 subtracts
3 foresight of metering-orifice 2 Mobile base, 21 tapped through hole, 31 stud 311 opening 32 platform, 33 apex of front sight, 5 gas block, 51 positioning pin pilot hole
6 foresight beds combine 61 foresight bed, 7 air guide foresight unit.
Specific embodiment
The present invention is described in detail below with reference to view, cited embodiment can make the technology people of this profession
Member more understands the present invention, but the invention is not limited in any way.
As shown in Figure 4-8, a kind of air guide foresight unit 7 is that traditional gas block and foresight bed are combined two kinds to have difference
The parts design of function is integrated, and makes it while having the function of two kinds of original two components.
Specifically, a kind of air guide foresight unit, it is made of pedestal 1, Mobile base 2, foresight 3.Pedestal is the present apparatus
Core, latter half shape is roughly the same with traditional gas block, is made of gun barrel hole 11, air guide room 12 and gas port 13；First half
Part is the matrix for fixing foresight, and shape is similar to traditional foresight bed, is stepped down from top to bottom by foresight guard circle 16, foresight
Hole 15, mobile bore 14, decrement hole 17 are constituted.Mobile base 2 used by the present apparatus with it is existing identical, 1 bottom of pedestal is
Gun barrel hole 11, the hole are used to air guide foresight unit being fixed on gun barrel, are interference fits with gun barrel；There is air guide room 12 in rear end,
For accommodating automatic machine piston head and powder gases, the inclined hole for being connected to gun barrel hole 11 and air guide room 12 is gas port 13, for from
Powder gases are derived in gun barrel, provide the power of automatic machine recoil movement with this.There is mobile bore in air guide foresight unit front end
14, columned Mobile base 2 is installed on this with small magnitude of interference, and both ends protrusion stand or so end face, by the left or
The certain pressure of person to the right, can be such that Mobile base moves left and right.Mobile base first passes through interference fit in mobile bore, spiral shell
Pit is upward, then foresight 3 is pushed and is screwed in Mobile base.There is radial tapped through hole 21 in the middle part of Mobile base, foresight 3 is fixed
In tapped through hole 21, there are two positioning pin pilot holes 51 for the envisaged underneath in connection gun barrel hole.It is that foresight allows above mobile bore 14
Position hole 15, diameter is greater than foresight stud portion, and it is made to have certain gap, can get out of the way the shifting of foresight of Mobile base drive or so
It is dynamic.It is topmost front sight ring 16, effect is to protect foresight not by external collision deformation or damage.Bottom is decrement hole
17, to mitigate weight.
Foresight 3 is whole cylindrical, is two sections of size cylindric, lower part is stud 31, and middle part has platform 32, such as AK47
Type assault rifle: the high 4mm of step, is topmost the column apex of front sight 33 of diameter very little, foresight tip diameter 1.8mm, high 4mm,
Lower part stud has external screw thread, matches with the threaded hole of Mobile base, while lower part cuts with axially open 311, specifically such as: foresight lower part
The diameter of thread of stud 31 is 6mm, and the high 19mm in threaded portion, axially open is width 1mm, and deep 12 ~ 13mm expands opening,
Base diameter is expanded by 6mm to 7mm, is separately in "eight" shape, and in heat treatment (quenching), this position has very strong hardness and opens afterwards
Power after being screwed into Mobile base, due to there is very strong outer tension, is not easy to loosen in shooting course.Tiny cylinder at the top of foresight is
The reference that shooter aims at, the flat step surface of cylinder position lower end is the bayonet face that spanner turns foresight.
Two functions of the present apparatus, first is that realizing air guiding function, mode is that powder gases are overflowed from gun barrel, passes through air guide
Hole enters air guide room, expands and push gunlock recoil herein, completes automatic hull withdraw and function of loading；Second is that realizing fixed foresight function
Can, foresight is by being screwed on Mobile base, while Mobile base is that interference fit is fixed in the present apparatus, is to be not easy pine in shooting
Dynamic and mobile, Mobile base can also can be pressed by tool or so to adjust with the height of up and down adjustment foresight by screw thread
The left-right position of foresight.
The machining process route of the core of the present apparatus --- pedestal are as follows:
A) essence casting forms, and produces monnolithic case and decrement hole;
B) cast gate is removed;
C) on the basis of the front end face A in gun barrel hole 11, positioning surface B is processed.
D) it is positioning with shape, gun barrel hole shape and the face B outside air guide room, mills flat pedestal front end face, makes itself and mobile bore
Distance and position is design value, then successively plenum openings, air guide room rear end face and oblique angle are led in processing, gun barrel hole, gun barrel hole rear end face fall
Angle, front sight ring hole, foresight relief hole, observation slot, peep hole, lower end circular arc platform, two platform of lower end;
E) it processes mobile bore and sells pilot hole: including milling mobile bore, two end chamfers, the pilot hole for boring two pin holes;
F) it bores and twists gas port: including milling platform, boring gas port, hinge gas port;
G) each portion's burr is removed；
H) it is heat-treated: including quenching, deoiling, be tempered, pickling, sandblasting, polishing, inspection, correction, destressing, pickling, cleaning；It reaches
To Rockwell hardness 38HRC-43HRC；
I) it finish reams and leads plenum openings, finish reams gun barrel hole;
J) mobile bore is finish reamed；
K) it polishes;
L) liquid tumbling: blunt and deburring is fallen including corner angle;
M) surface black oxidation processes: including oil removing twice, cleaning, pickling, twice cleaning, pre-oxidation, cleaning, alkaline oxygen
Change, amendment oxidation, cleaning, alkaline oxygenated, amendment oxidation, cleaning, flushing, hot water treatment, tar.
Deduction step a, h, m, only 10 machining sequences.
Remaining not described Mobile base with it is existing identical, foresight except be open processing in addition to it is also same as the prior art.
1 AK47 type assault rifle of embodiment, 58 millimeters of former gas block length, 30 millimeters of former foresight bed length, between the two
Away from 61.4 millimeters, 876 millimeters of whole rifle raw footage, 3.5 kilograms of weight.
Existing 66 millimeters of air guide foresight unit length, whole rifle length can foreshorten to 750 to 800 millimeters, and weight is less than 3.3 kilograms.
If being equipped with the foldable gun stock of currently popular engineering plastics, 535mm can be foreshortened to after full rifle folded lengthwise, greatly
Facilitate the portable of shooter.
Claims (8)
1. a kind of air guide foresight unit, which is characterized in that it is made of pedestal (1), Mobile base (2), foresight (3), pedestal
(1) bottom is gun barrel hole (11), and the rear end on top is air guide room (12), is had between connection gun barrel hole (11) and air guide room (12)
There is the gas port (13) of both perforations, is foresight fixing seat in the front end of pedestal, is provided with mobile bore in foresight fixing seat
It (14), is foresight relief hole (15) above mobile bore (14), it is topmost front sight ring (16) that diameter, which is greater than foresight (3),
The envisaged underneath of mobile bore has decrement hole (17), and Mobile base (2) is whole cylindrical, solid with mobile bore (14) interference fit
Determine on the base, to have radial tapped through hole (21) at middle part, foresight (3) is fixed on tapped through hole (21), in gun barrel hole (11)
Envisaged underneath there are two positioning pin pilot hole (51).
2. a kind of air guide foresight unit according to claim 1, which is characterized in that the foresight (3) is whole cylindrical,
Lower part is stud (31), and it is topmost the column apex of front sight (33) of diameter very little that middle part, which has platform (32),.
3. a kind of air guide foresight unit according to claim 2, which is characterized in that the stud of described foresight (3) lower part
(31) there is opening (311).
4. a kind of air guide foresight unit according to claim 3, which is characterized in that foresight (3) the lower part stud is opened
Mouthful (311) are in " eight " fonts.
5. a kind of manufacture craft of air guide foresight unit as described in claim 1, which is characterized in that the machining process route of pedestal
Are as follows:
A) essence casting forms, and produces monnolithic case and decrement hole;
B) cast gate is removed;
C) on the basis of the front end face A in gun barrel hole 11, positioning surface B is processed；
D) it is positioning with shape, gun barrel hole shape and the face B outside air guide room, mills flat pedestal front end face, makes it at a distance from mobile bore
Position is design value, then successively plenum openings, air guide room rear end face and oblique angle, gun barrel hole, gun barrel hole rear end surface chamfer, standard are led in processing
Star guard ring hole, foresight relief hole, observation slot, peep hole, lower end circular arc platform, two platform of lower end;
E) mobile bore and pin pilot hole are processed;
F) it bores and twists gas port;
G) each portion's burr is removed；
H) it is heat-treated；
I) it finish reams and leads plenum openings, finish reams gun barrel hole;
J) mobile bore is finish reamed；
K) it polishes;
L) liquid tumbling;
M) surface black oxidation processes.
6. the manufacture craft of pedestal according to claim 5, which is characterized in that the e) the mobile bore of processing described in step and
Pin pilot hole, which refers to, mills mobile bore, two end chamfers, the pilot hole for boring two pin holes.
7. the manufacture craft of pedestal according to claim 5, which is characterized in that h) heat treatment described in step refer to and quench
Fire deoils, is tempered, pickling, sandblasting, polishing, inspection, correction, destressing, pickling, cleaning；Reach Rockwell hardness 38HRC-
43HRC。
8. the manufacture craft of pedestal according to claim 5, which is characterized in that m) at surface black oxidation described in step
Reason refers to oil removing twice, cleaning, pickling, twice cleaning, pre-oxidation, cleaning, alkaline oxygenated, amendment oxidation, cleaning, alkaline oxygen
Change, amendment oxidation, cleaning, flushing, hot water treatment, tar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060064.5A CN109099760A (en) | 2018-09-12 | 2018-09-12 | A kind of air guide foresight unit and its manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060064.5A CN109099760A (en) | 2018-09-12 | 2018-09-12 | A kind of air guide foresight unit and its manufacture craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099760A true CN109099760A (en) | 2018-12-28 |
Family
ID=64866029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060064.5A Pending CN109099760A (en) | 2018-09-12 | 2018-09-12 | A kind of air guide foresight unit and its manufacture craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894289A (en) * | 2021-03-11 | 2021-06-04 | 重庆互久机械制造有限责任公司 | Processing technology of rifle piston seat |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140075800A1 (en) * | 2012-08-20 | 2014-03-20 | James Morris, JR. | Flash Redirecting Recoil Compensator |
| CN104406455A (en) * | 2014-11-24 | 2015-03-11 | 重庆建设工业(集团)有限责任公司 | Emitted gas adjusting mechanism of semi-automatic shotgun |
| CN204535554U (en) * | 2015-03-18 | 2015-08-05 | 无锡贝宁机械有限公司 | Monoblock type launching seat |
| CN105171361A (en) * | 2015-10-30 | 2015-12-23 | 福建兵工装备有限公司 | Machining process and machining clamp for machining bolt carrier by means of three-axis machining center |
| CN208968357U (en) * | 2018-09-12 | 2019-06-11 | 福建兵工装备有限公司 | A kind of air guide foresight unit |
-
2018
- 2018-09-12 CN CN201811060064.5A patent/CN109099760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140075800A1 (en) * | 2012-08-20 | 2014-03-20 | James Morris, JR. | Flash Redirecting Recoil Compensator |
| CN104406455A (en) * | 2014-11-24 | 2015-03-11 | 重庆建设工业(集团)有限责任公司 | Emitted gas adjusting mechanism of semi-automatic shotgun |
| CN204535554U (en) * | 2015-03-18 | 2015-08-05 | 无锡贝宁机械有限公司 | Monoblock type launching seat |
| CN105171361A (en) * | 2015-10-30 | 2015-12-23 | 福建兵工装备有限公司 | Machining process and machining clamp for machining bolt carrier by means of three-axis machining center |
| CN208968357U (en) * | 2018-09-12 | 2019-06-11 | 福建兵工装备有限公司 | A kind of air guide foresight unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894289A (en) * | 2021-03-11 | 2021-06-04 | 重庆互久机械制造有限责任公司 | Processing technology of rifle piston seat |
| CN112894289B (en) * | 2021-03-11 | 2022-10-18 | 重庆互久机械制造有限责任公司 | Processing technology of rifle piston seat |
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Application publication date: 20181228 |
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