CN220805139U - Hot gas expansion forming die for aluminum alloy pipe fitting - Google Patents
Hot gas expansion forming die for aluminum alloy pipe fitting Download PDFInfo
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- CN220805139U CN220805139U CN202322575935.XU CN202322575935U CN220805139U CN 220805139 U CN220805139 U CN 220805139U CN 202322575935 U CN202322575935 U CN 202322575935U CN 220805139 U CN220805139 U CN 220805139U
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 55
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The application relates to the technical field of pipe fitting forming, in particular to an aluminum alloy pipe fitting hot air expansion forming die which comprises a lower die body and an upper die body, wherein a lower die body half die cavity is arranged on the die body, an upper die body half die cavity is arranged on the upper die body, the lower die body half die cavity and the upper die body half die cavity form a pipe fitting die cavity for placing an aluminum alloy pipe fitting to be processed, push head inserts are arranged at two ends of the pipe fitting die cavity, an insert cavity is arranged in the push head insert, the insert cavity is used for accommodating a movable push head, and one end of the push head is connected with a power device. According to the aluminum alloy pipe fitting hot air expansion forming die, through the arrangement of the two push heads, heating and forming of the aluminum alloy pipe fitting to be processed in a pipe fitting die cavity are realized, and the pipe fitting forming quality is ensured; the recycling of heating source gas is realized; the heat insulation layer prevents the lower die body and the upper die body from absorbing heat of the aluminum alloy pipe fitting to be processed, and shortens the time from heating to forming of the aluminum alloy pipe fitting to be processed.
Description
Technical Field
The application belongs to the technical field of pipe fitting forming, and particularly relates to a hot gas expansion forming die for an aluminum alloy pipe fitting.
Background
At present, a heating die is generally adopted for processing and forming a pipe fitting on the market, and the pipe fitting to be processed is heated to a forming temperature through the temperature of the die and then is formed. However, this processing method has the following problems: firstly, the heating energy consumption of the die is high, the heat dissipation of the die is serious in a high-temperature state, the waste is high, and meanwhile, the heat dissipation of the die is reduced by heat insulation of the die, so that the influence of the high temperature of the die on equipment, other devices and working environments is reduced; secondly, the heating mode of the pipe body mainly comprises heat radiation, the heating time is long, and the efficiency is low; thirdly, when the blank pipes are unevenly distributed in the die cavity, the temperature of the different positions of the blank pipes is different due to the fact that the distances between the different positions and the die cavity are inconsistent, and finally poor forming is caused; fourth, after the pipe is formed, the pipe wall can be attached to the mold cavity, and because adhesion can occur at high temperature, the pipe can be damaged and the service life of the mold can be reduced.
Disclosure of Invention
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides an aluminum alloy pipe fitting steam expands forming die, including lower die body and last die body, be provided with the half die cavity of lower die body on the die body, be provided with the half die cavity of last die body on the last die body, the half die cavity of lower die body and last die body constitutes pipe fitting mould chamber for place the aluminum alloy pipe fitting that waits to process, the both ends in pipe fitting mould chamber are provided with all are provided with the push head mold insert, be provided with the mold insert inner chamber in the push head mold insert, the mold insert inner chamber is used for splendid attire mobilizable push head, power device is connected to the one end of push head.
Optionally, an insulating layer is arranged on the inner wall of the pipe fitting die cavity.
Optionally, the push head comprises a push head body, a flow cavity is arranged in the push head body, one end of the flow cavity is communicated with an aluminum alloy pipe fitting to be processed, the other end of the flow cavity is respectively communicated with a heating source inlet and a high-pressure air source inlet, the heating source inlet is communicated with a heating source, and the high-pressure air source inlet is communicated with a high-pressure air source.
Optionally, the aperture of the heating source inlet is set larger than the aperture of the high-pressure air source inlet.
Optionally, the heating source inlet is communicated with a heating source through a heating source pipeline, and a control valve is arranged on the heating source pipeline; the high-pressure air source inlet is communicated with a high-pressure air source through a high-pressure air source pipeline, and a valve is arranged on the high-pressure air source pipeline.
Optionally, the heating source inlet and the high-pressure air source inlet are symmetrically distributed on two sides of the central axis of the push head.
Optionally, the head of the push head body is in a frustum shape.
Optionally, in the working state, the tube heads at the two ends of the aluminum alloy tube to be processed are inserted into the inner cavity of the insert of the push head insert; the two push heads respectively enter the inner cavities of the corresponding inserts, and the heads of the push heads are abutted against the inner wall of the pipe head of the aluminum alloy pipe fitting to be processed.
Optionally, a forming insert is disposed within the pipe die cavity, the forming insert being removable.
Optionally, the power device is an oil cylinder.
The application provides a hot gas expansion forming die for an aluminum alloy pipe fitting, which is used for realizing heating and forming of the aluminum alloy pipe fitting to be processed in a pipe fitting die cavity and ensuring the forming quality of the pipe fitting through the arrangement of two push heads; not only realizing the rapid heating treatment of the aluminum alloy pipe fitting to be processed, but also avoiding the problem of heat loss caused by transfer of the aluminum alloy pipe fitting to be processed, and realizing the recovery of a heating source; the rapid forming treatment of the aluminum alloy pipe fitting to be processed is realized, and the recovery of a high-pressure air source is realized; the heat insulation layer prevents the lower die body and the upper die body from absorbing heat of the aluminum alloy pipe fitting to be processed, ensures that the temperature of the aluminum alloy pipe fitting to be processed is kept within a forming temperature range, and greatly shortens the time from heating to forming of the aluminum alloy pipe fitting to be processed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a thermal expansion forming die for an aluminum alloy pipe fitting of the application;
FIG. 2 is a schematic view of the structure of the lower mold body;
FIG. 3 is an enlarged view of M in FIG. 2;
FIG. 4 is a schematic diagram of the structure of a pusher;
FIG. 5 is a cross-sectional view of a pusher;
Fig. 6 is a schematic diagram showing the positional relationship between the aluminum alloy pipe fitting to be processed and the inner cavity of the insert and the head of the push head in the working state.
The symbols in the drawings illustrate:
1-a lower die base; 2-lower die body; 21-a push head insert; 22-forming inserts; 23-guiding protrusions; 24-guiding grooves; 3-a lower die body half die cavity; 4-pushing heads; 41-heating source inlet; 411-heating source line; 42-a high pressure gas source inlet; 421-high pressure gas supply line; 43-flow chamber; 44-head; 5-power means; 6-hanging rings; 7-an aluminum alloy pipe fitting to be processed; 8-upper die base; 9-an upper die body; 10-heat insulation layer.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The hot air forming die for the aluminum alloy pipe fitting provided by the embodiment of the application is explained. Referring to fig. 1 and 2, an aluminum alloy pipe fitting hot air expansion forming die comprises a lower die body 2 and an upper die body 9 which are matched. The lower die body 2 is arranged on the lower die base 1, the upper die body 9 is arranged on the upper die base 8, and a hanging ring 6 can be arranged on the lower die base 1 for convenient hanging and moving.
Referring to fig. 2 and 3, a lower die body half cavity 3 is provided on the lower die body 2, an upper die body half cavity (not shown in the drawings) is provided on the upper die body 9, and the lower die body half cavity 3 and the upper die body half cavity form a pipe die cavity for placing an aluminum alloy pipe 7 to be processed.
The heat insulation layer 10 is arranged on the inner wall of the pipe fitting die cavity, and the heat insulation layer 10 prevents the heated aluminum alloy pipe fitting 7 to be processed from being absorbed by the lower die body 2 and the upper die body 9, so that the temperature of the aluminum alloy pipe fitting 7 to be processed cannot reach the forming temperature. Preferably, the insulating layer 10 is a ceramic insulating layer.
Both ends of the pipe fitting die cavity are provided with push head inserts 21, insert inner cavities are arranged in the push head inserts 21 and used for accommodating movable push heads 4, and the insert inner cavities play a role in guiding the push heads 4 in moving and sealing the aluminum alloy pipe fitting 7 to be processed; one end of the push head 4 is connected with a power device 5. When in operation, the power device 5 drives the push head 4 to move left and right (taking the left side as the left side in fig. 2), so as to realize the sealing of the two ends of the aluminum alloy pipe fitting 7 to be processed.
Preferably, the power device 5 is an oil cylinder, and of course, other power devices capable of realizing the left-right movement of the push head 4 can be selected by using an air cylinder.
Referring to fig. 4 and 5, the pusher 4 includes a pusher body having a tapered head 44 for facilitating access to the port of the aluminum alloy tube 7 to be processed through the insert cavity.
A flow cavity 43 is arranged in the push head body, one end of the flow cavity 43 is communicated with the aluminum alloy pipe fitting 7 to be processed, and the other end of the flow cavity is respectively communicated with the heating source inlet 41 and the high-pressure air source inlet 42. The heating source inlet 41 is communicated with a heating source through a heating source pipeline 411, and a control valve is arranged on the heating source pipeline 411; the high-pressure air source inlet 42 is communicated with a high-pressure air source through a high-pressure air source pipeline 421, and a valve is arranged on the high-pressure air source pipeline 421.
In operation, the lower die body 2 and the upper die body 9 are separated, and the upper die body 9 is generally moved away; then placing the aluminum alloy pipe fitting 7 to be processed in the lower die body half die cavity 3, buckling the upper die body 9 on the lower die body 2, enabling the aluminum alloy pipe fitting 7 to be processed to be positioned in a pipe fitting die cavity formed by the lower die body half die cavity 3 and the upper die body half die cavity, and enabling pipe heads at two ends of the aluminum alloy pipe fitting 7 to be processed to extend into an insert cavity of the push head insert 21; the two power devices 5 drive the corresponding push heads 4 to enter the corresponding insert inner cavities respectively, and then enter the ports of the aluminum alloy pipe fitting 7 to be processed, so that the head 44 of the push head 4 is abutted against the inner wall of the pipe head of the aluminum alloy pipe fitting 7 to be processed (see fig. 6), and when the flow cavities 43 of the push heads 4 at the two ends of the aluminum alloy pipe fitting 7 to be processed are closed, the inner cavities of the aluminum alloy pipe fitting 7 to be processed are also closed, and the heating and high-pressure inflation deformation effects of the aluminum alloy pipe fitting 7 to be processed can be ensured.
When the pushing heads 4 at two ends of the aluminum alloy pipe fitting 7 to be processed are in place, valves on the heating source pipelines 411 of the pushing heads 4 at two ends are opened, valves on the high-pressure air source pipelines 421 of the pushing heads 4 at two ends are closed, at the moment, a heating source enters the flow cavity 43 of the pushing head 4 through the heating source pipeline 411 connected with one pushing head 4, then enters the aluminum alloy pipe fitting 7 to be processed through the flow cavity 43, the aluminum alloy pipe fitting 7 to be processed is rapidly heated, and the heating source is discharged and recycled to the heating source through the heating source pipeline 411 connected with the other pushing head 4; after the aluminum alloy pipe fitting 7 to be processed is heated, valves on the high-pressure air source pipelines 421 of the push heads 4 at two ends are opened, valves on the heating source pipelines 411 of the push heads 4 at two ends are closed, at this time, the high-pressure air source enters the flow cavity 43 of one push head 4 through the high-pressure air source pipeline 421 connected with the push head 4, then enters the aluminum alloy pipe fitting 7 to be processed through the flow cavity 43, high-pressure forming is carried out on the aluminum alloy pipe fitting 7 to be processed, and the high-pressure air source is discharged and recycled to the high-pressure air source through the high-pressure air source pipeline 421 connected with the other push head 4. At this time, the aluminum alloy pipe fitting 7 to be processed is processed into a desired formed piece, and then the next processing process is performed.
In practical applications, the heating source inlet 41 and the high-pressure air source inlet 42 are preferably symmetrically disposed on both sides of the central axis of the push head 4, but only if the heating source and the high-pressure air source enter the flow chamber 43 of the push head 4. When the heating source inlet 41 and the high-pressure air source inlet 42 are symmetrically distributed on two sides of the central axis of the push head 4, a groove needs to be formed on the lower die body 2, so as to place the heating source pipeline 411 connected with the heating source inlet 41 and the high-pressure air source pipeline 421 connected with the high-pressure air source inlet 42.
Referring to fig. 5, in order to realize that both the heating source and the high-pressure air source can rapidly fill the inner cavity of the aluminum alloy pipe fitting 7 to be processed, the caliber of the heating source inlet 41 is larger than that of the high-pressure air source inlet 42.
The aluminum alloy pipe 7 to be processed is usually pre-set to be processed into a corresponding shape before processing, for example, a certain position of the aluminum alloy pipe 7 to be processed is processed into a corresponding shape, if the corresponding position inside the pipe mold cavity is directly set into the corresponding shape, the application range of the mold is greatly limited, based on the fact that the detachable forming insert 22 is arranged inside the pipe mold cavity, the corresponding forming insert 22 can be placed at a position required inside the pipe mold cavity according to the forming requirement of the aluminum alloy pipe 7 not to be processed, and see fig. 2.
Referring to fig. 2, in the process of mounting and fastening the lower mold body 2 and the upper mold body 9, for more accurate fastening positions, mold guiding devices including a guiding groove 24 and a guiding protrusion 23 are provided on the lower mold body 2 and the upper mold body 9.
The application provides a hot gas expansion forming die for an aluminum alloy pipe fitting, which is used for realizing heating and forming of the aluminum alloy pipe fitting to be processed in a pipe fitting die cavity and ensuring the forming quality of the pipe fitting through the arrangement of two push heads; not only realizing the rapid heating treatment of the aluminum alloy pipe fitting to be processed, but also avoiding the problem of heat loss caused by transfer of the aluminum alloy pipe fitting to be processed, and realizing the recovery of a heating source; the rapid forming treatment of the aluminum alloy pipe fitting to be processed is realized, and the recovery of a high-pressure air source is realized; the heat insulation layer prevents the lower die body and the upper die body from absorbing heat of the aluminum alloy pipe fitting to be processed, ensures that the temperature of the aluminum alloy pipe fitting to be processed is kept within a forming temperature range, and greatly shortens the time from heating to forming of the aluminum alloy pipe fitting to be processed.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
1. The utility model provides an aluminum alloy pipe fitting steam expands forming die, includes die body and last die body down, be provided with the half die cavity of die body down on the die body, be provided with the half die cavity of die body on the last die body, the half die cavity of die body and last die body constitutes pipe fitting mould chamber down for place to wait to process aluminum alloy pipe fitting, its characterized in that: the pipe fitting die cavity is characterized in that push head inserts are arranged at two ends of the pipe fitting die cavity, an insert inner cavity is arranged in the push head inserts, the insert inner cavity is used for containing a movable push head, and one end of the push head is connected with a power device.
2. The hot air expansion forming die for aluminum alloy pipe fittings as claimed in claim 1, wherein: and a heat insulation layer is arranged on the inner wall of the pipe fitting mold cavity.
3. An aluminum alloy pipe fitting hot air expansion forming die as claimed in claim 1 or 2, wherein: the push head comprises a push head body, a flow cavity is formed in the push head body, one end of the flow cavity is communicated with an aluminum alloy pipe fitting to be processed, the other end of the flow cavity is respectively communicated with a heating source inlet and a high-pressure air source inlet, the heating source inlet is communicated with a heating source, and the high-pressure air source inlet is communicated with a high-pressure air source.
4. A hot gas expansion die for aluminum alloy pipe fittings as defined in claim 3, wherein: the caliber of the heating source inlet is larger than that of the high-pressure air source inlet.
5. A hot gas expansion die for aluminum alloy pipe fittings as defined in claim 3, wherein: the heating source inlet is communicated with a heating source through a heating source pipeline, and a control valve is arranged on the heating source pipeline; the high-pressure air source inlet is communicated with a high-pressure air source through a high-pressure air source pipeline, and a valve is arranged on the high-pressure air source pipeline.
6. A hot gas expansion die for aluminum alloy pipe fittings as defined in claim 3, wherein: the heating source inlets and the high-pressure air source inlets are symmetrically distributed on two sides of the central axis of the push head.
7. A hot gas expansion die for aluminum alloy pipe fittings as defined in claim 3, wherein: the head of the push head body is in a frustum shape.
8. A hot gas expansion die for aluminum alloy pipe fittings as defined in claim 3, wherein: when in a working state, the tube heads at the two ends of the aluminum alloy pipe fitting to be processed are inserted into the inner cavity of the insert of the push head; the two push heads respectively enter the inner cavities of the corresponding inserts, and the heads of the push heads are abutted against the inner wall of the pipe head of the aluminum alloy pipe fitting to be processed.
9. The hot air expansion forming die for aluminum alloy pipe fittings as claimed in claim 1, wherein: and a forming insert is arranged in the pipe fitting die cavity and is detachable.
10. The hot air expansion forming die for aluminum alloy pipe fittings as claimed in claim 1, wherein: the power device is an oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322575935.XU CN220805139U (en) | 2023-09-21 | 2023-09-21 | Hot gas expansion forming die for aluminum alloy pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322575935.XU CN220805139U (en) | 2023-09-21 | 2023-09-21 | Hot gas expansion forming die for aluminum alloy pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220805139U true CN220805139U (en) | 2024-04-19 |
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ID=90673324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322575935.XU Active CN220805139U (en) | 2023-09-21 | 2023-09-21 | Hot gas expansion forming die for aluminum alloy pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220805139U (en) |
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2023
- 2023-09-21 CN CN202322575935.XU patent/CN220805139U/en active Active
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