CN219966558U - Milling tool for adjustable bleed valve of aero-engine - Google Patents
Milling tool for adjustable bleed valve of aero-engine Download PDFInfo
- Publication number
- CN219966558U CN219966558U CN202321354488.9U CN202321354488U CN219966558U CN 219966558 U CN219966558 U CN 219966558U CN 202321354488 U CN202321354488 U CN 202321354488U CN 219966558 U CN219966558 U CN 219966558U
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- Prior art keywords
- supporting
- adjustable
- bleed valve
- air release
- release valve
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- 238000003801 milling Methods 0.000 title claims abstract description 13
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model provides a milling tool for an adjustable bleed valve of an aeroengine, which can be used for stably clamping various adjustable bleed valves of aeroengines with different curved surfaces during milling. The adjustable air release valve comprises a tool base, wherein a pressing mechanism, a positioning mechanism and a supporting mechanism are arranged on the tool base, the pressing mechanism comprises a pressing plate which presses and covers the periphery of the adjustable air release valve, the positioning mechanism comprises a positioning column which is arranged on the periphery of the adjustable air release valve, the supporting mechanism comprises a supporting thimble which is arranged at the bottom of the adjustable air release valve, the supporting thimble comprises a supporting block and a supporting rod, the top of the supporting block is in contact with the bottom of the adjustable air release valve, a spherical concave cambered surface is arranged at the bottom of the supporting block, a spherical head matched with the spherical concave cambered surface is arranged at the top end of the supporting rod, and the supporting rod is in threaded connection with the tool base and penetrates through the tool base to form a screwing end.
Description
Technical Field
The utility model relates to the technical field of milling tools, in particular to a milling tool for an adjustable bleed valve of an aero-engine.
Background
In the field of aeroengine manufacturing, an adjustable bleed valve part is one of important parts on an intermediate casing assembly, a flow passage window of the intermediate casing plays a sealing role, so that the precision requirement of the part is high, as shown in fig. 1, the rear part structure diagram of the adjustable bleed valve is shown, because the structure of the adjustable bleed valve is a special-shaped part, the clamping surface is in an arc-shaped curved surface shape, the appearance profile is also in a thin-wall curved surface shape, the clamping and limiting of the part are difficult, the bottom surface A without a complex structure is generally selected as a supporting surface when the adjustable bleed valve is clamped by a conventional tool, but the bottom surface is curved, and the supporting surface of the supporting part needs to be closely attached to the supporting surface of a workpiece in order to effectively support the adjustable bleed valve, so that each adjustable bleed valve is often corresponding to one tool, the processing cost is high, and if the adjustable bleed valve is used on tools of different types, the supporting surface of the supporting part may only have a part of peripheral area to be contacted with the workpiece, so that the clamping is unstable, the milling is large, and the quality of the product is unstable.
Disclosure of Invention
Aiming at the problems of poor rigidity, poor adjustability, large vibration during milling and unstable product quality of the existing tool, the utility model provides the milling tool for the adjustable air release fire door of the aero-engine, which can improve the problem of poor rigidity of the tool, improve the stability of processing and improve the processing quality of products.
The technical scheme is as follows: the utility model provides an aeroengine adjustable bleed valve mills processing frock, its includes the frock base, install hold-down mechanism, positioning mechanism, supporting mechanism on the frock base, hold-down mechanism includes to press the adjustable bleed valve to cover clamp plate on the supporting mechanism, positioning mechanism is including locating adjustable bleed valve week portion's reference column, its characterized in that: the supporting mechanism comprises a supporting thimble arranged at the bottom of the adjustable air release valve, the supporting thimble comprises a supporting block and a supporting rod, the top of the supporting block is in contact with the bottom of the adjustable air release valve, a spherical concave cambered surface is arranged at the bottom of the supporting block, a spherical head matched with the spherical concave cambered surface is arranged at the top end of the supporting rod, and the supporting rod is in threaded connection with the tool base and penetrates through the tool base to form a screwing end.
It is further characterized by:
the pressing mechanism further comprises a mounting bolt for mounting the pressing plate;
the supporting mechanism also comprises a supporting table arranged on the periphery of the bottom end of the adjustable air release valve;
the bottom of the tool base is provided with a cavity, the tightening end is positioned in the cavity, and the part of the supporting rod positioned in the cavity is also connected with a locking nut.
After the structure is adopted, the supporting rod can be enabled to move upwards by screwing the supporting rod, the supporting block connected with the supporting rod is enabled to rotate to be attached to the curved surface of the bottom of the adjustable air release valve, so that the supporting mechanism is realized, the adjustable air release valve can be applicable to various aero-engine adjustable air release valves with different curved surfaces, and then the adjustable air release valve is tightly pressed on the supporting mechanism through the pressing plate, so that stable clamping can be completed.
Drawings
FIG. 1 is a schematic view of an aircraft engine adjustable bleed valve construction;
FIG. 2 is a schematic diagram of a clamping;
FIG. 3 is a schematic diagram of the structure of the present utility model;
FIG. 4 is a schematic view of a support spike in contact with an adjustable bleed valve;
FIG. 5 is a schematic view of a supporting thimble structure.
Detailed Description
The milling tool for the adjustable bleed valve of the aeroengine comprises a tool base 1, wherein a pressing mechanism, a positioning mechanism and a supporting mechanism are arranged on the tool base 1, the pressing mechanism comprises a pressing plate 2 (3 in number, 1 in the top of the front end of a workpiece and 2 in the top of the rear end) and a mounting bolt, the pressing mechanism comprises positioning columns 3 (3 in number, two in the front end of the workpiece and one in the left side) arranged on the periphery of the adjustable bleed valve, the supporting mechanism comprises supporting thimbles 4 (5 in number, two in the bottom of the left side and two in the bottom of the right side) and supporting tables 8, the supporting thimbles 4 comprise supporting blocks 5 and supporting rods 6, the tops of the supporting blocks 5 are contacted with the bottoms of the adjustable bleed valve, the bottoms of the supporting blocks 5 are provided with spherical concave cambered surfaces, the tops of the supporting rods 6 are provided with spherical heads matched with the spherical concave cambered surfaces, and the supporting rods 6 are connected with the tool base 1 in a threaded mode and penetrate through the tool base to form a screwing end 7.
For convenient operation, the bottom of the tool base 1 is provided with a cavity 100, the screwing end 7 is positioned in the cavity 100, and the part of the supporting rod 6 positioned in the cavity 100 is also connected with a locking nut 9. In order to reduce the cost, the supporting rod 6 can be modified by adopting a standard bolt, and only the spherical cambered surface at the front end needs to be processed, and the locking nut 9 can also be a standard product, but in a special design, according to the design requirement of a part clamp, a nonstandard design can be adopted, the tightening end 7 can be designed into a knurled texture, so that the friction force during manual tightening is increased, and the manual operation is convenient.
The tool is characterized in that: the rectangular tool base 1 is of a hollow structure, the rectangular design can be randomly arranged on a workbench of a machine tool, the hollow design is used for conveniently arranging a reverse supporting thimble 4, three supporting tables 8 with round bosses are designed on the surface of the tool base 1, the surface of each boss is preferably of a curved surface structure, the curved surface structure is mainly designed for being capable of being attached to a curved surface of a part, attaching degree and friction force are increased, meanwhile, three positioning columns 3 are designed on the outer contour edge of the part, two positioning columns 3 are arranged on a straight line, when the positioning columns are contacted with the outer contour of the front end of the part, the part can be straightened, one positioning column 3 is arranged on the side edge of the part, the three positioning columns 3 can be used for aligning the position of the part, and the three bosses play a role in positioning the outer contour of the part; the five designed support thimbles 4 are screwed from the hollow part of the rectangular tool base 1 from bottom to top through the threaded holes, the end part of the support rod 6 is in a spherical design, the support block 5 is arranged at the end part of the support rod 6, the inside of the support block is in a concave cambered surface design, when the support rod 6 is tightly propped upwards by applying a rotating force, the support block 5 is in contact with the curved surface of a part, the spherical shape can automatically rotate along with the normal direction of the curved surface, and the purpose that the support block 5 is tightly attached to the curved surface of the part is achieved, so that the stable support is realized.
During installation, the workpiece is positioned by propping against the positioning column 3, the supporting table 8 can play a primary supporting role, the pressing plate is pressed on the workpiece by screwing the mounting bolt, the spherical cambered surface at the top of the supporting rod 6 and the spherical cambered surface of the supporting block 5 are propped up tightly by screwing the screwing end 7 at the bottom of the workpiece, the supporting block 5 props against the part by the surface contacted with the part and is in reversing proximity with the surface of the part, the propping force of the supporting rod 6 in the straight line direction is converted into the direction of the surface of the part by steering, the free universal propping support is formed, and then the locking nut 9 on the supporting rod 6 is locked, so that the purpose of workpiece support is realized.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides an aeroengine adjustable bleed valve mills processing frock, its includes the frock base, install hold-down mechanism, positioning mechanism, supporting mechanism on the frock base, hold-down mechanism includes to press the adjustable bleed valve to cover clamp plate on the supporting mechanism, positioning mechanism is including locating adjustable bleed valve week portion's reference column, its characterized in that: the supporting mechanism comprises a supporting thimble arranged at the bottom of the adjustable air release valve, the supporting thimble comprises a supporting block and a supporting rod, the top of the supporting block is in contact with the bottom of the adjustable air release valve, a spherical concave cambered surface is arranged at the bottom of the supporting block, a spherical head matched with the spherical concave cambered surface is arranged at the top end of the supporting rod, and the supporting rod is in threaded connection with the tool base and penetrates through the tool base to form a screwing end.
2. The milling tooling of the adjustable bleed valve of the aeroengine of claim 1, wherein: the pressing mechanism further comprises a mounting bolt for mounting the pressing plate.
3. The milling tooling of the adjustable bleed valve of the aeroengine of claim 1, wherein: the supporting mechanism also comprises a supporting table arranged on the periphery of the bottom end of the adjustable air release valve.
4. A milling tooling for an aircraft engine adjustable bleed valve according to any one of claims 1-3, characterized in that: the bottom of the tool base is provided with a cavity, the tightening end is positioned in the cavity, and the part of the supporting rod positioned in the cavity is also connected with a locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321354488.9U CN219966558U (en) | 2023-05-31 | 2023-05-31 | Milling tool for adjustable bleed valve of aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321354488.9U CN219966558U (en) | 2023-05-31 | 2023-05-31 | Milling tool for adjustable bleed valve of aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219966558U true CN219966558U (en) | 2023-11-07 |
Family
ID=88594615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321354488.9U Active CN219966558U (en) | 2023-05-31 | 2023-05-31 | Milling tool for adjustable bleed valve of aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219966558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117300688A (en) * | 2023-11-30 | 2023-12-29 | 四川卡雷亚数控机床有限公司 | Workpiece positioning device and method for machine tool machining platform |
-
2023
- 2023-05-31 CN CN202321354488.9U patent/CN219966558U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117300688A (en) * | 2023-11-30 | 2023-12-29 | 四川卡雷亚数控机床有限公司 | Workpiece positioning device and method for machine tool machining platform |
| CN117300688B (en) * | 2023-11-30 | 2024-01-30 | 四川卡雷亚数控机床有限公司 | Workpiece positioning device and method for machine tool machining platform |
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