CN219648719U - Clamp for turning external threads of shaft diameter type stator blade threaded shaft - Google Patents
Clamp for turning external threads of shaft diameter type stator blade threaded shaft Download PDFInfo
- Publication number
- CN219648719U CN219648719U CN202321144454.7U CN202321144454U CN219648719U CN 219648719 U CN219648719 U CN 219648719U CN 202321144454 U CN202321144454 U CN 202321144454U CN 219648719 U CN219648719 U CN 219648719U
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- center
- hollow shaft
- blade
- cavity
- shaft
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- 238000003754 machining Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model belongs to the field of machining, and particularly relates to a clamp for turning external threads on a shaft diameter type stator blade threaded shaft. The technical proposal is as follows: the novel blade type hollow shaft comprises a hollow shaft, a center, a spring, an end cover and a bolt, wherein a flange is arranged at the front end of the hollow shaft, three screw holes are uniformly formed in the flange along the circumferential direction, a blade cavity is formed in the front part of the hollow shaft, a center cavity is formed in the rear part of the hollow shaft, and an annular clamping table is arranged between the blade cavity and the center cavity; the middle part of the center is provided with an annular clamping block, the center is placed in the center cavity, the front end of the center extends into the blade cavity, and the annular clamping block limits the annular clamping block; the center of the end cover is provided with a center through hole, four bolt through holes are uniformly formed in the periphery of the center through hole, the end cover is arranged at the rear end of the hollow shaft through bolts, and the tail part of the center is placed in the center through hole; the spring is installed on top and is located between end cover and the annular fixture block. And clamping the blade in a blade cavity of the hollow shaft, and turning the external thread of the threaded shaft to ensure that the size and form and position tolerance of the part are qualified.
Description
Technical Field
The utility model belongs to the field of machining, and particularly relates to a clamp for turning external threads on a shaft diameter type stator blade threaded shaft.
Background
The shaft diameter type stator blade of the aero-engine compressor has a thinner blade body, and the external thread of the threaded shaft at the front end of the stator blade is required to be machined for preparation. The prior art comprises the following steps: firstly, carrying out fine grinding processing on the blade thread shaft through grinding processing, and then carrying out thread rolling forming processing. Because the middle blade body of the stator blade is thinner, the blade body is deformed due to high-speed rotation during grinding, and the form and position tolerance (coaxiality and circle run-out) of the blade workpiece after grinding is difficult to ensure; after the thread rolling operation is completed, the blade workpiece becomes longer, causing dimensional overrun.
Disclosure of Invention
The utility model provides a clamp for turning external threads of a shaft diameter type stator blade threaded shaft, which is used for clamping a blade to be processed in a blade cavity of a hollow shaft, and turning the external threads of the threaded shaft, so that the size and form and position tolerance of parts can be ensured to be qualified.
The technical scheme of the utility model is as follows:
the fixture comprises a hollow shaft, a center, a spring, an end cover and bolts, wherein the front end of the hollow shaft is provided with a flange, three screw holes are uniformly formed in the flange along the circumferential direction, the front part of the hollow shaft is a blade cavity, the rear part of the hollow shaft is a center cavity, and an annular clamping table is arranged between the blade cavity and the center cavity; an annular clamping block is arranged in the middle of the center, the center is placed in the center cavity, the front end of the center stretches into the blade cavity, and the annular clamping block limits the annular clamping block; the center of the end cover is provided with a center through hole, four bolt through holes are uniformly formed in the periphery of the center through hole, the end cover is arranged at the rear end of the hollow shaft through the bolts, and the tail part of the center is placed in the center through hole; the spring is mounted on the center and located between the end cover and the annular clamping block.
Further, the fixture for turning the external threads of the shaft diameter type stator blade threaded shaft comprises a chuck body and three claws, wherein three screw holes are uniformly formed in the front end face of the chuck body along the circumferential direction, the hollow shaft is placed in a central hole of the chuck body, and a flange of the hollow shaft is fixedly mounted on the front end face of the chuck body through screws.
The tail end of the blade to be processed is provided with a jacking hole, the jacking hole is matched with the center, the blade to be processed is held by hand to press the center, three clamping jaws are screwed to clamp the front shaft diameter of the blade to be processed, and a threaded shaft to be processed is exposed out of the three clamping jaws; and turning the external thread of the threaded shaft.
The beneficial effects of the utility model are as follows: the fixture is fixedly connected with the three-jaw chuck of the lathe, the center tightly pushes the blade to be processed under the action of the spring, and the three jaws clamp the front shaft diameter of the blade to be processed, so that the blade to be processed cannot deform in the process of turning the external threads of the threaded shaft of the blade, and the form and position tolerance of parts is ensured; the external threads of the blade threaded shaft are machined, so that the length of the part is not lengthened, and the size of the part is ensured to be qualified.
Drawings
FIG. 1 is a schematic view of a shaft diameter type stator vane;
FIG. 2 is an exploded view of the three jaw chuck;
FIG. 3 is a schematic diagram of a special fixture blast;
FIG. 4 is a schematic view of a blade to be machined clamped on a special fixture and a three-jaw chuck;
fig. 5 is a cross-sectional view taken along the direction A-A in fig. 4.
In the figure: the novel chuck comprises a blade body 1, a front shaft diameter 2, a threaded shaft 3, a chuck body 4, a clamping jaw 5, a screw hole 6, a hollow shaft 7, a center 8, a spring 9, an end cover 10, a flange 11, an annular clamping block 12, a screw 13 and a bolt 14.
Detailed Description
1-5, a clamp for turning external threads of shaft diameter stator blade threaded shafts comprises a hollow shaft 7, a center 8, a spring 9, an end cover 10 and bolts 14, wherein a flange 11 is arranged at the front end of the hollow shaft 7, three screw holes are uniformly formed in the flange 11 along the circumferential direction, a blade cavity is formed in the front part of the hollow shaft 7, a center cavity is formed in the rear part of the hollow shaft 7, and an annular clamping table is arranged between the blade cavity and the center cavity; an annular clamping block 12 is arranged in the middle of the center 8, the center 8 is placed in the center cavity, the front end of the center stretches into the blade cavity, and the annular clamping block limits the annular clamping block 12; the center of the end cover 10 is provided with a center through hole, four bolt through holes are uniformly formed in the periphery of the center through hole, the end cover 10 is arranged at the rear end of the hollow shaft 7 through the bolts 14, and the tail part of the center 8 is placed in the center through hole; the spring 9 is mounted on the tip 8 and is located between the end cap 10 and the annular clamp block 12.
The three-jaw chuck of the lathe comprises a chuck body 4 and three jaws 5, wherein three screw holes 6 are uniformly formed in the front end face of the chuck body 4 along the circumferential direction, the special fixture is placed in a central hole of the chuck body 4, and a flange 11 of the hollow shaft 7 is fixedly mounted on the front end face of the chuck body 4 through screws 13.
The tail end of the blade to be processed is provided with a jacking hole, the jacking hole is matched with the center 8, the blade to be processed is held by hand to press the center 8, the three clamping jaws 5 are screwed to clamp the front shaft diameter 2 of the blade to be processed, and the threaded shaft 3 to be processed is exposed out of the three clamping jaws 5; the external thread of the threaded shaft 3 is machined.
Claims (2)
1. The fixture for turning the external threads of the shaft diameter type stator blade threaded shaft is characterized by comprising a hollow shaft, a center, a spring, an end cover and bolts, wherein the front end of the hollow shaft is provided with a flange, three screw holes are uniformly formed in the flange along the circumferential direction, the front part of the hollow shaft is a blade cavity, the rear part of the hollow shaft is a center cavity, and an annular clamping table is arranged between the blade cavity and the center cavity; an annular clamping block is arranged in the middle of the center, the center is placed in the center cavity, the front end of the center stretches into the blade cavity, and the annular clamping block limits the annular clamping block; the center of the end cover is provided with a center through hole, four bolt through holes are uniformly formed in the periphery of the center through hole, the end cover is arranged at the rear end of the hollow shaft through the bolts, and the tail part of the center is placed in the center through hole; the spring is mounted on the center and located between the end cover and the annular clamping block.
2. The fixture for turning external threads of a shaft-diameter type stator blade threaded shaft according to claim 1, wherein the three-jaw chuck of the lathe comprises a chuck body and three jaws, three screw holes are uniformly formed in the front end face of the chuck body along the circumferential direction, the hollow shaft is placed in a central hole of the chuck body, and a flange of the hollow shaft is fixedly mounted on the front end face of the chuck body through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321144454.7U CN219648719U (en) | 2023-05-12 | 2023-05-12 | Clamp for turning external threads of shaft diameter type stator blade threaded shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321144454.7U CN219648719U (en) | 2023-05-12 | 2023-05-12 | Clamp for turning external threads of shaft diameter type stator blade threaded shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219648719U true CN219648719U (en) | 2023-09-08 |
Family
ID=87853152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321144454.7U Active CN219648719U (en) | 2023-05-12 | 2023-05-12 | Clamp for turning external threads of shaft diameter type stator blade threaded shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219648719U (en) |
-
2023
- 2023-05-12 CN CN202321144454.7U patent/CN219648719U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |