CN217858079U - Ammunition cartridge cold extrusion forming die for aluminum bar in annealing state - Google Patents
Ammunition cartridge cold extrusion forming die for aluminum bar in annealing state Download PDFInfo
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- CN217858079U CN217858079U CN202221419034.0U CN202221419034U CN217858079U CN 217858079 U CN217858079 U CN 217858079U CN 202221419034 U CN202221419034 U CN 202221419034U CN 217858079 U CN217858079 U CN 217858079U
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Abstract
A cold extrusion forming die for an ammunition cartridge case of an aluminum bar in an annealing state comprises a lower die assembly and an upper die assembly corresponding to the lower die assembly; the lower die assembly comprises a lower die base, a lower heat insulation plate arranged on the lower die base, a lower padding plate arranged on the lower heat insulation plate and a lower die arranged on the lower padding plate, wherein a mandril is arranged in the middle of the lower die base; go up the mould subassembly and include the punch holder board, set up the upper padding plate in punch holder board below, set up the punch holder fixed plate in punch holder below, set up the blank holder backing plate in punch holder fixed plate below and set up the clamping ring fixed plate in the blank holder backing plate below, be provided with cartridge case model II on the upper padding plate, cartridge case model II one end passes punch holder fixed plate, blank holder backing plate, clamping ring fixed plate in proper order and outwards extends.
Description
Technical Field
The utility model relates to a cartridge case cold extrusion forming die technical field specifically is an ammunition cartridge case cold extrusion forming die of annealing state aluminium bar.
Background
40 the aluminum alloy bar material processed by the T6 cylinder is processed into a product through the procedures of blanking, oxidation saponification, extrusion, annealing treatment, deformation processing, solidification treatment, aging, machining and the like, when a test is carried out, fatal defects such as mouth tearing, shell clamping and the like occur, and the aluminum alloy bar processed by the T6 cylinder is directly processed into the product, so that the phenomena of insufficient strength of parts, shell clamping in the test and the like are overcome; but has the disadvantages of long production period, high cost and unsuitability for mass production. Improvements have been made to the cold extrusion process to solve the above problems.
Wherein, in the mechanical extrusion trade, all through mould spare extrusion, but current extrusion die all is through multichannel extrusion procedure at the extrusion in-process, from this, causes manufacturing cost to be high, and processingquality is relatively poor, and the rejection rate is high, still has the production cycle length simultaneously, does not adapt to mass production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an ammunition cartridge case cold extrusion forming die of annealing state aluminium bar is provided.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a cold extrusion forming die for an ammunition cartridge of an aluminum bar in an annealing state comprises a lower die assembly and an upper die assembly corresponding to the lower die assembly; the lower die assembly comprises a lower die base, a lower heat insulation plate arranged on the lower die base, a lower padding plate arranged on the lower heat insulation plate and a lower die arranged on the lower padding plate, wherein a mandril is arranged in the middle of the lower die base, a cavity is formed in the lower heat insulation plate, the lower padding plate and the mandril, a thimble bottom plate is arranged in the cavity, a groove I is formed in the lower die, a groove II is formed in the groove I, a cartridge model I is arranged in the groove II, a thimble is arranged on the thimble bottom plate, and one end of the thimble extends into the groove II and is positioned on two sides of the cartridge model I;
go up the mould subassembly and include the upper seat board, set up upper padding plate, the setting of upper seat board below are in last fixed plate, the setting of upper padding plate below are in blank holder backing plate and the setting of last fixed plate below are in the blank holder fixed plate of blank holder backing plate below, be provided with cartridge case model II on the upper padding plate, II one ends of cartridge case model pass upper fixed plate, blank holder backing plate, blank holder fixed plate in proper order and outwards extend, be equipped with in II peripheries of cartridge case model, the blank holder fixed plate with II assorted blank holders of cartridge case model, blank holder one end protrusion the blank holder fixed plate forms convex blank holder.
In one embodiment, the groove I and the groove II are both annular grooves, and the diameter of the cartridge model I is smaller than that of the groove II.
In one embodiment, the lower die is provided with a guide sleeve.
In one embodiment, the diameter of the male binder ring is the same as the groove I diameter.
In one embodiment, the upper seat plate is provided with a guide pillar, and one end of the guide pillar sequentially penetrates through the upper die, the upper die fixing plate, the blank holder base plate and the pressing ring fixing plate and is matched with the guide sleeve.
In one embodiment, an upper heat insulation plate is provided on the upper seat plate.
In one embodiment, the lower die base, the lower heat insulation plate, the lower backing plate and the lower die are fixedly connected through screws.
In one embodiment, the upper die fixing plate, the blank holder backing plate and the blank holder fixing plate are fixedly connected through screws.
The utility model has the advantages as follows:
the utility model discloses a cooperation of die holder, lower heat insulating board, lower bolster, lower mould, last mould, punch holder board, blank holder backing plate, clamping ring fixed plate, cartridge case model I, cartridge case model II etc. can directly extrude the cartridge case of annealing state aluminium bar to can effectual reduction in production cost, still guaranteed processingquality, reduction production cycle simultaneously, and adapt to mass production.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of the die assembly in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of the mold assembly according to embodiment 1 of the present invention.
In the figure: 10. a lower die base, 11, a top rod, 15, a lower heat insulation plate, 20, a lower cushion plate, 21, a cavity, 22, a top pin base plate, 23, a top pin, 30, a lower die, 31, grooves I, 32, grooves II, 33, cartridge models I, 35, a guide sleeve, 50, an upper base plate, 55, a guide pillar, 56, an upper heat insulation plate, 60, an upper cushion plate, 80, an upper die fixing plate, 90, a blank holder cushion plate, 100, a clamping ring fixing plate, 110, a blank holder, 115 and a convex blank holder,
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
It is to be noted that; the utility model adopts a blank body with the size phi of 45 multiplied by 30 plus or minus 0.1.
Example 1
As shown in fig. 1, the present embodiment includes a lower die assembly and an upper die assembly corresponding to the lower die assembly, whereby the aluminum alloy rod in an annealed state (50-581 BW 10/1000/30) is subjected to blanking → oxidative saponification → extrusion → quenching, aging → machining in order to obtain a cartridge, wherein the aluminum alloy rod can be better extruded and formed by matching the lower die assembly with the upper die assembly, thereby effectively reducing the production cost, ensuring the processing quality, reducing the production cycle, and adapting to mass production.
As shown in fig. 2, the lower die assembly includes a lower die base 10, a lower heat insulation plate 15 disposed on the lower die base 10, a lower backing plate 20 disposed on the lower heat insulation plate 15, and a lower die 30 disposed on the lower backing plate 20, wherein a top rod 11 is disposed in the middle of the lower die base 10, a cavity 21 is disposed on the lower heat insulation plate 15 and the inner and top rods 11 of the lower backing plate 20, a top pin bottom plate 22 is disposed in the cavity 21, a groove i 31 is disposed on the lower die 30, a groove ii 32 is disposed on the groove i 31, a cartridge model i 33 is disposed in the groove ii 32, a top pin 23 is disposed on the top pin bottom plate 22, and one end of the top pin 23 extends into the groove ii 32 and is located on two sides of the cartridge model i 33;
as shown in fig. 3, the upper die assembly comprises an upper base plate 50, an upper base plate 60 arranged below the upper base plate 50, an upper die fixing plate 80 arranged below the upper base plate 60, a blank holder base plate 90 arranged below the upper die fixing plate 80, and a blank holder fixing plate 100 arranged below the blank holder base plate 90, a cartridge model ii 75 is arranged on the upper base plate 60, one end of the cartridge model ii 75 sequentially penetrates through the upper die fixing plate 80, the blank holder base plate 90 and the blank holder fixing plate 100 and extends outwards, a blank holder 110 matched with the cartridge model ii 75 is arranged on the periphery of the cartridge model ii 75 and the blank holder fixing plate 100, and one end of the blank holder 110 protrudes out the blank holder fixing plate 100 to form a convex blank holder 115.
The groove I31 and the groove II 32 are both annular grooves, and the diameter of the cartridge model I33 is smaller than that of the groove II 32.
The lower die 30 is provided with a guide sleeve 35.
The diameter of the convex binder ring 115 is the same as the diameter of the groove I31.
The upper seat plate 50 is provided with a guide pillar 55, and one end of the guide pillar 55 sequentially penetrates through the upper die 70, the upper die fixing plate 80, the blank holder backing plate 90 and the blank holder fixing plate 100 and is matched with the guide sleeve 35.
The upper seat plate 50 is provided with an upper heat shield plate 56.
The lower die base 10, the lower heat insulation plate 15, the lower backing plate 20 and the lower die 30 are fixedly connected through screws.
The upper die 70, the upper die fixing plate 80, the blank holder backing plate 90 and the blank holder fixing plate 100 are fixedly connected through screws.
The utility model discloses a theory of operation as follows:
taking an aluminum alloy blank with the size phi of 45 multiplied by 30 +/-0.1 in an annealing state (50-581 BW 10/1000/30), putting the blank on a cartridge model I33 in a lower die assembly, then extruding the blank on the cartridge model I33 through a cartridge model II 75 in an upper die assembly, simultaneously, enabling a guide pillar 55 in the upper die assembly to enter a guide sleeve 35, and extruding and attaching the upper die assembly and the lower die assembly to form a cartridge by the blank; and separating the upper die assembly from the lower die assembly, and ejecting the upper die assembly through the ejector rod 11 to enable the top of the ejector pin 23 on the ejector pin bottom plate 22 to define the groove II 32, further ejecting the medicine cartridge from the medicine cartridge model I33, and thus quenching, aging and machining the ejected medicine cartridge to obtain the product.
The quenching and aging are carried out by putting the extruded cartridge case into a product frame, heating the quenching furnace to 350 ℃, preserving heat for 0.5h, heating the quenching furnace to 505 ℃, preserving heat for 2h, opening a furnace door, quickly putting the quenching furnace into water for quenching, putting the quenched product into an aging furnace for aging, heating the quenching furnace to 160 ℃, preserving heat for 2h, and then taking the quenching furnace out of the furnace for air cooling.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced equally; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an ammunition cartridge case cold extrusion forming die of annealing state aluminium bar which characterized in that: the device comprises a lower die assembly and an upper die assembly corresponding to the lower die assembly; the lower die assembly comprises a lower die base (10), a lower heat insulation plate (15) arranged on the lower die base (10), a lower backing plate (20) arranged on the lower heat insulation plate (15) and a lower die (30) arranged on the lower backing plate (20), wherein a push rod (11) is arranged in the middle of the lower die base (10), a cavity (21) is formed in the push rod (11) and in the lower heat insulation plate (15) and the lower backing plate (20), a thimble bottom plate (22) is arranged in the cavity (21), a groove I (31) is formed in the lower die (30), a groove II (32) is formed in the groove I (31), a cartridge model I (33) is arranged in the groove II (32), a thimble (23) is arranged on the thimble bottom plate (22), and one end of the thimble (23) extends into the groove II (32) and is positioned on two sides of the cartridge model I (33);
go up the mould subassembly and include upper base plate (50), set up upper padding plate (60), the setting of upper base plate (50) below are in upper fixing plate (80), the setting of upper padding plate (60) below are in blank holder backing plate (90) and the setting of blank holder backing plate (80) below are in blank holder fixing plate (100) of blank holder backing plate (90) below, be provided with cartridge model II (75) on upper padding plate (60), cartridge model II (75) one end is passed in proper order and is gone up mould fixing plate (80), blank holder backing plate (90), blank holder fixing plate (100) and outwards extend, be equipped with in cartridge model II (75) periphery, the blank holder fixing plate (100) with cartridge model II (75) assorted blank holder (110), blank holder (110) one end protrusion blank holder fixing plate (100) form convex blank holder (115).
2. A cartridge cold extrusion die for annealed aluminum bars according to claim 1 wherein: recess I (31) with recess II (32) are the annular groove, the diameter of cartridge case model I (33) is less than the diameter of recess II (32).
3. A cartridge cold extrusion die for annealed state aluminum bars according to claim 2 wherein: the lower die (30) is provided with a guide sleeve (35).
4. An ammunition cartridge cold extrusion forming die for annealed condition aluminum bars as claimed in claim 3 wherein: the diameter of the convex blank holder (115) is the same as that of the groove I (31).
5. An ammunition cartridge cold extrusion die for annealed condition aluminum bars according to claim 4 wherein: the upper seat plate (50) is provided with a guide pillar (55), and one end of the guide pillar (55) sequentially penetrates through the upper die (70), the upper die fixing plate (80), the blank holder base plate (90) and the blank holder fixing plate (100) and is matched with the guide sleeve (35).
6. An ammunition cartridge cold extrusion die for annealed condition aluminum bars according to claim 5 wherein: an upper heat insulation plate (56) is arranged on the upper seat plate (50).
7. A cartridge cold extrusion die for annealed aluminum bars according to claim 1 wherein: the lower die base (10), the lower heat insulation plate (15), the lower backing plate (20) and the lower die (30) are fixedly connected through screws.
8. An ammunition cartridge cold extrusion forming die for annealed condition aluminum bars as claimed in claim 1 wherein: the upper die (70), the upper die fixing plate (80), the blank holder backing plate (90) and the blank holder fixing plate (100) are fixedly connected through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221419034.0U CN217858079U (en) | 2022-06-09 | 2022-06-09 | Ammunition cartridge cold extrusion forming die for aluminum bar in annealing state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221419034.0U CN217858079U (en) | 2022-06-09 | 2022-06-09 | Ammunition cartridge cold extrusion forming die for aluminum bar in annealing state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217858079U true CN217858079U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221419034.0U Active CN217858079U (en) | 2022-06-09 | 2022-06-09 | Ammunition cartridge cold extrusion forming die for aluminum bar in annealing state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217858079U (en) |
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2022
- 2022-06-09 CN CN202221419034.0U patent/CN217858079U/en active Active
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