CN220445772U - Cold working perforating tool for thin-wall end socket of liquid rocket storage tank - Google Patents
Cold working perforating tool for thin-wall end socket of liquid rocket storage tank Download PDFInfo
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- CN220445772U CN220445772U CN202321905056.2U CN202321905056U CN220445772U CN 220445772 U CN220445772 U CN 220445772U CN 202321905056 U CN202321905056 U CN 202321905056U CN 220445772 U CN220445772 U CN 220445772U
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- 238000003860 storage Methods 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 238000005482 strain hardening Methods 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 40
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 238000005056 compaction Methods 0.000 claims description 4
- 201000009240 nasopharyngitis Diseases 0.000 claims 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a cold working and perforating tool for a thin-wall end enclosure of a liquid rocket storage tank, which comprises a ring plate, wherein the top end of the ring plate is fixedly provided with arc-shaped supporting rib plates which are uniformly distributed in a circumference manner, and the outline of the outer edge of each arc-shaped supporting rib plate is attached to the inner wall of the thin-wall end enclosure of the storage tank to be clamped; the top center parts of the arc-shaped support rib plates are fixedly connected through a top plate. The tool can be used for effectively positioning and supporting the thin-wall end socket of the liquid rocket storage tank, further guaranteeing the accuracy of the opening position of the end socket of the rocket storage tank and the precision requirement of the hole, controlling the installation position of each connecting pipe within the tolerance range, enabling various static, dynamic and thermal loads in the rocket body flight to meet the design requirements, and providing beneficial guarantee for normal operation during rocket propulsion.
Description
Technical Field
The utility model relates to a cold working and perforating tool for a thin-wall end socket of a liquid rocket storage tank, and belongs to the technical field of hole machining.
Background
The liquid rocket is mainly used as a propelling part of a space carrier and a missile nuclear weapon and generally comprises a power device, an rocket body structure, a control system and other components. The propellant storage tank in the rocket body structure is used for storing liquid fuel and oxidant and bears various static, dynamic and thermal loads in flight. The rocket tank is formed by welding a head, a cylinder, a manhole, accessories and various pipe joints. The rocket tank end enclosure is a main pressure-bearing member of the body rocket tank, and is designed into an elliptic convex structure for preventing leakage and ensuring the tightness of the rocket tank. The end enclosure is used as a termination section of the tank body of the storage tank, and various pipe connecting nozzles, such as a liquid inlet, a filling port, a manhole, a discharge port, a safety valve port and the like, are often arranged on the end enclosure, and the quality of the end enclosure is directly related to the safety and reliability of the rocket storage tank. In general, the male closure head is formed by punching or spinning, and the pipe hole and the man-hole opening in the closure head are formed after the closure head is formed. For the thin-wall convex elliptical head of the rocket tank, the head is easy to deform in a common hot processing hole forming mode, and the defects of stress concentration, inaccurate hole position, unsatisfied precision and the like influence the stability of the whole rocket system.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide a cold working tapping tool for a thin-wall end socket of a liquid rocket storage tank, which can be used for effectively positioning and supporting the thin-wall end socket of the liquid rocket storage tank, further ensuring the accuracy of the tapping position of the end socket of the rocket storage tank and the precision requirement of a hole, controlling the installation position of each connecting pipe within a tolerance range, enabling various static, dynamic and thermal loads in rocket body flight to meet the design requirement, and providing a favorable guarantee for normal operation during rocket propulsion.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the cold working and perforating tool for the thin-wall end enclosure of the liquid rocket storage tank is characterized by comprising a ring plate, wherein the top end of the ring plate is fixedly provided with arc-shaped supporting rib plates which are uniformly distributed in a circumference manner, and the outline of the outer edge of each arc-shaped supporting rib plate is attached to the inner wall of the thin-wall end enclosure of the storage tank to be clamped; the top center parts of the arc-shaped support rib plates are fixedly connected through a top plate.
The outer circumferential edge of the annular plate is provided with a pressing step.
The inner side wall of the compaction step is provided with an inner arc groove.
The top end of the arc-shaped supporting rib plate is provided with a stepped groove matched with the top plate.
During clamping, the annular plate is fixed at the top of the workbench through the pressing plate assembly in a pressing mode.
The pressing plate assembly comprises a pressing plate, one end of the pressing plate is pressed on the top end of the pressing step, and the other end of the pressing plate is fixed on the top end of the workbench through a long bolt and a pressing nut.
The utility model has the following beneficial effects:
1. by adopting the tool and the method, the accuracy of the opening position of the thin-wall end socket of the liquid rocket storage tank and the precision requirement of the hole are ensured by designing a set of arc-shaped supporting rib plates for the opening of the thin-wall end socket of the liquid rocket storage tank. The welding device provides effective guarantee for the welding and position degree of each interface of the rocket tank thin-wall sealing head, and solves the difficult problem of irregular rocket tank thin-wall sealing head and deformation of the conventional hot-working perforated sealing head.
2. The arc-shaped supporting rib plate used in the tool and the method for cold working and perforating the thin-wall end enclosure of the liquid rocket storage tank has the advantages of reasonable structure, rapid manufacturing, simple and safe construction process and convenient operation.
3. The method can effectively control the deformation of the rocket tank when the thin-wall end socket is perforated, ensure the precision of each hole, is a necessary premise for the smooth welding of each pipe, and provides favorable guarantee for the normal operation of the rocket during the propulsion and the flight.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is an overall construction diagram of the present utility model.
FIG. 2 is a three-dimensional view of the tooling of the present utility model.
FIG. 3 is a block diagram of a thin wall head of a tank of the present utility model.
Fig. 4 is a front view of the tool of the present utility model in supporting engagement with a thin-walled head of a tank.
In the figure: the device comprises a workbench 1, a compaction step 2, a storage tank thin-wall seal head 3, a hole to be processed 4, a ring plate 5, a top plate 6, an arc-shaped supporting rib plate 7, an inner arc-shaped groove 8, a step groove 9, a long bolt 10, a compaction nut 11 and a pressing plate 12.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-4, a cold working and perforating tool for a thin-wall end enclosure of a liquid rocket storage tank is characterized by comprising a ring plate 5, wherein an arc-shaped supporting rib plate 7 which is uniformly arranged in a circumference is fixed at the top end of the ring plate 5, and the outline of the outer edge of the arc-shaped supporting rib plate 7 is attached to the inner wall of the thin-wall end enclosure 3 of the storage tank to be clamped; the top center parts of the arc-shaped supporting rib plates 7 are fixedly connected through the top plate 6. The tool can be used for effectively positioning and supporting the thin-wall end socket of the liquid rocket storage tank, further guaranteeing the accuracy of the opening position of the end socket of the rocket storage tank and the precision requirement of the hole, controlling the installation position of each connecting pipe within the tolerance range, enabling various static, dynamic and thermal loads in the rocket body flight to meet the design requirements, and providing beneficial guarantee for normal operation during rocket propulsion. In the specific use process, the storage box thin-wall sealing head 3 is supported at the top end of the arc-shaped supporting rib plate 7, and the inner arc-shaped surfaces of the storage box thin-wall sealing head 3 are attached to each other through the top arc-shaped surface of the arc-shaped supporting rib plate 7, so that the storage box thin-wall sealing head 3 is reliably and stably supported, and deformation of the storage box thin-wall sealing head 3 in the subsequent processing process is effectively prevented.
Further, the outer circumferential edge of the annular plate 5 is provided with a pressing step 2. The pressing step 2 can be used for being matched with a pressing plate assembly, so that the pressing fixation of the annular plate 5 is realized, and the pressing fixation of the whole tool is realized.
Further, an inner arc-shaped groove 8 is formed in the inner side wall of the pressing step 2. The internal arc groove 8 facilitates subsequent position adjustment of the supported thin-wall seal head 3 of the storage tank, so that the positioning precision of the thin-wall seal head is ensured, and the hole position precision in the subsequent hole machining process is ensured.
Further, a stepped groove 9 matched with the top plate 6 is formed in the top end of the arc-shaped supporting rib plate 7. The step groove 9 is convenient for positioning and fixing the top plate 6, and further limiting and connecting the top ends of the multi-petal arc-shaped supporting rib plates 7.
Further, during clamping, the annular plate 5 is fixed on the top of the workbench 1 through the pressing plate assembly in a pressing mode. The pressing plate assembly can reliably press and fix the annular plate 5.
Further, the pressing plate assembly comprises a pressing plate 12, one end of the pressing plate 12 is pressed on the top end of the pressing step 2, and the other end of the pressing plate 12 is fixed on the top end of the workbench 1 through a long bolt 10 and a pressing nut 11. The pressing plate assembly can be used for reliably fixing and clamping the tool and the workbench, and meanwhile, the thin-wall sealing head 3 of the storage tank can be reliably fixed. In a specific fixing process, the end of the pressing plate 12 is pressed on the top end of the pressing step 2 of the annular plate 5, and then the pressing plate 12 is fixed on the top end of the workbench 1 through the long bolt 10 and the pressing nut 11.
Example 2:
a method for perforating by adopting a liquid rocket storage tank thin-wall end socket cold-working perforating tool comprises the following steps:
step one, assembling and welding a tool:
according to the size of the thin-wall end socket 3 of the storage tank, which is required to be perforated, blanking is carried out on a ring plate 5, an arc-shaped supporting rib plate 7 and a top plate 6 of the tool; then scribing, positioning and welding the blanked tooling parts into a whole;
step two, processing the outer circumference of the annular plate 5:
placing the assembled and welded tool bottom plane on a machine tool vertical lathe workbench, correcting and adjusting the tool, machining the outer circle of the annular plate 5, the compression step 2 and the inner arc groove 8, and machining the joint surface of the arc-shaped support rib plate 7 and the storage box thin-wall seal head 3;
step three, preliminary installation of the thin-wall end socket 3 of the storage tank and the tool:
placing the processed tool in the second step on the table surface of a workbench 1 of a numerical control planer type milling machine, buckling the formed storage box thin-wall sealing head 3 on the top of an arc-shaped supporting rib plate 7 of the tool, and adjusting the position of the storage box thin-wall sealing head 3 to enable the storage box thin-wall sealing head 3 to be attached to the outer wall of the top of the arc-shaped supporting rib plate 7;
step four, fixing the thin-wall end socket 3 of the storage tank and a tool:
the thin-wall end socket 3 of the storage tank and the arc-shaped supporting rib plate 7 are aligned and adjusted to a proper position by using a pressing plate 12, a long bolt 10 and a compression nut 11, and then the thin-wall end socket 3 of the storage tank and the tooling are firmly installed with the workbench 1;
fifthly, perforating the thin-wall sealing head 3 of the storage tank:
according to the position of the holes 4 to be processed on the thin-wall sealing head 3 of the storage tank, programming a processing program for a numerical control planer milling machine, processing each hole 4 to be processed in the thin-wall sealing head 3 of the storage tank to the required tolerance size requirement, lifting the thin-wall sealing head 3 of the storage tank after processing, and then carrying out subsequent corresponding procedures.
Claims (6)
1. The cold working and perforating tool for the thin-wall end enclosure of the liquid rocket storage tank is characterized by comprising a ring plate (5), wherein arc-shaped supporting rib plates (7) which are uniformly arranged in a circumference manner are fixed at the top end of the ring plate (5), and the outline of the outer edge of each arc-shaped supporting rib plate (7) is attached to the inner wall of the thin-wall end enclosure (3) of the storage tank to be clamped; the top center parts of the arc-shaped supporting rib plates (7) are fixedly connected through the top plate (6).
2. The liquid rocket tank thin-wall head cold working tapping tool according to claim 1, wherein: the outer circumferential edge of the annular plate (5) is provided with a pressing step (2).
3. The liquid rocket tank thin-wall head cold working tapping tool according to claim 2, wherein: the inner side wall of the compaction step (2) is provided with an inner arc groove (8).
4. The liquid rocket tank thin-wall head cold working tapping tool according to claim 1, wherein: the top end of the arc-shaped supporting rib plate (7) is provided with a stepped groove (9) matched with the top plate (6).
5. The liquid rocket tank thin-wall head cold working tapping tool according to claim 2, wherein: during clamping, the annular plate (5) is fixed at the top of the workbench (1) through pressing of the pressing plate assembly.
6. The liquid rocket tank thin-wall head cold working tapping tool according to claim 5, wherein: the pressing plate assembly comprises a pressing plate (12), one end of the pressing plate (12) is pressed on the top end of the pressing step (2), and the other end of the pressing plate (12) is fixed on the top end of the workbench (1) through a long bolt (10) and a pressing nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321905056.2U CN220445772U (en) | 2023-07-19 | 2023-07-19 | Cold working perforating tool for thin-wall end socket of liquid rocket storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321905056.2U CN220445772U (en) | 2023-07-19 | 2023-07-19 | Cold working perforating tool for thin-wall end socket of liquid rocket storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220445772U true CN220445772U (en) | 2024-02-06 |
Family
ID=89732134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321905056.2U Active CN220445772U (en) | 2023-07-19 | 2023-07-19 | Cold working perforating tool for thin-wall end socket of liquid rocket storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220445772U (en) |
-
2023
- 2023-07-19 CN CN202321905056.2U patent/CN220445772U/en active Active
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