CN221415798U - Flexible fixture for blisk - Google Patents
Flexible fixture for blisk Download PDFInfo
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- CN221415798U CN221415798U CN202323256110.8U CN202323256110U CN221415798U CN 221415798 U CN221415798 U CN 221415798U CN 202323256110 U CN202323256110 U CN 202323256110U CN 221415798 U CN221415798 U CN 221415798U
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- step shaft
- hole
- shaft
- positioning
- blisk
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- 238000003825 pressing Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000006748 scratching Methods 0.000 abstract description 2
- 230000002393 scratching effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a flexible fixture for a blisk, which comprises a base, a replaceable mandrel, a cover plate, an opening gasket and a nut, wherein the replaceable mandrel is arranged on the base, the replaceable mandrel is of a stepped columnar structure, the cover plate, the opening gasket and the nut are sequentially arranged on the stepped surface of the replaceable mandrel, and parts are arranged between the replaceable mandrel and the cover plate. The flexible fixture solves the technical problems of unstable clamping, low clamping efficiency and easy scratching of parts in the prior art by the flexible fixture of the blisk.
Description
Technical Field
The utility model relates to the technical field of part clamping, in particular to a flexible fixture for a blisk.
Background
The integral impeller and the integral vane disk of the aero-engine are one of important parts of the aero-engine, and the production and processing processes of the integral impeller and the integral vane disk are complex. The variety of whole impeller and blisk is comparatively many, in the production processing in the past, and different grades, model's product need different special frock clamp, and it is high to change the product frequency, and frock manufacturing and management cost are high and are not down, and the clamping time of part is long moreover. The production efficiency is low, the operation is complex, and meanwhile, some potential quality and safety problems exist.
Most of the tools are pressed by the nut pressing cover, the pressing cover is easy to drive to move when the nut is rotated to press, the surfaces of the parts are easy to scratch, meanwhile, the clamping is unstable, the workpiece is easy to move, the requirement of mass production efficiency cannot be met, and the quality and stability cannot be guaranteed.
Therefore, it is needed to design a general fixture capable of better improving the stability, efficiency and precision of product processing, avoiding the phenomena of scratch, indentation and the like on the surface of a workpiece, and performing milling processing on different equipment for different compressor rotors and stators in milling processing.
Disclosure of utility model
The utility model aims to provide a flexible fixture for a blisk, which solves the technical problems of unstable clamping, low clamping efficiency and easy scratching of parts in the prior art.
In order to achieve the above purpose, the utility model provides a flexible fixture for a blisk, which comprises a base, a replaceable mandrel, a cover plate, an opening gasket and a nut, wherein the replaceable mandrel is arranged on the base, the replaceable mandrel is of a stepped columnar structure, the cover plate, the opening gasket and the nut are sequentially arranged on the stepped surface of the replaceable mandrel, and parts are arranged between the replaceable mandrel and the cover plate.
Further, the base is of an integral cylindrical structure with two open ends, the outer outline of the base is sequentially provided with a first step, a second step and a third step, the outer diameters of the first step and the third step are larger than those of the second step, screw countersinks I are uniformly distributed on the first step, the base passes through the screw countersinks I through the setting screws and is installed on a machine tool workbench, and threaded holes are uniformly distributed on the third step.
Further, a positioning hole is formed in the middle of the third step, a first through hole is formed in the middle of the first step and the second step, the inner diameter of the first through hole is larger than that of the positioning hole, the upper surface of the third step is an axial positioning surface, and a first pin hole is formed in the axial positioning surface.
Further, the outer contour of the replaceable mandrel is sequentially provided with a first step shaft, a second step shaft, a third step shaft, a fourth step shaft and a fifth step shaft, the outer diameters of the first step shaft, the second step shaft, the third step shaft, the fourth step shaft and the fifth step shaft are gradually reduced from top to bottom, the bottom of the fifth step shaft is provided with a sixth step shaft, and the outer diameter of the sixth step shaft is smaller than that of the fifth step shaft; the second countersunk head screw holes are uniformly distributed on the circumference of the fifth step shaft, the replaceable mandrel passes through the second countersunk head screw holes through screws and is installed in the threaded holes of the base, a second pin hole is formed in the bottom surface of the fifth step shaft, a cylindrical pin is installed in the second pin hole, and two ends of the cylindrical pin are arranged in the first pin hole and the second pin hole in a sliding fit manner without gaps; the center of the replaceable mandrel is provided with a second through hole and a third through hole which are communicated.
Further, the outer wall of the first step shaft is provided with external threads, the radial surface of the second step shaft is provided with a cylindrical positioning surface, the radial surface of the third step shaft is provided with a part positioning surface, the third step shaft is sleeved with a part, the lower end surface of the part is abutted to the part positioning surface, and the height of the part is higher than that of the third step shaft; a step positioning plane is arranged between the third step shaft and the fourth step shaft, the radial surface of the sixth step shaft is provided with a mounting positioning surface, the sixth step shaft is mounted in a positioning hole of the base, and the mounting positioning surface is in clearance-free sliding fit with the inner wall of the positioning hole; the installation locating surface is provided with a U-shaped groove along the circumference.
Further, the bottom of the cover plate is a pressing surface, and the pressing surface is abutted and attached with the upper end surface of the part; the bottom of the cover plate is a pressure-bearing surface, the center of the cover plate is provided with a positioning hole III and a through hole IV which are communicated, the cover plate is in clearance fit with the cylindrical positioning surface of the second step shaft through the positioning hole III, and the height of the cover plate is higher than that of the second step shaft.
Further, the nut and the opening gasket are sleeved on the first step shaft of the replaceable mandrel, the nut and the first step shaft are movably connected through external threads, and the lower end face of the opening gasket is abutted to the bearing face of the cover plate.
Further, the outer diameter of the nut is smaller than the inner diameter of the positioning hole III of the cover plate, and the opening width of the opening gasket is not smaller than the outer diameter of the first step shaft.
Based on the technical scheme, the utility model can produce the following beneficial effects:
(1) According to the flexible fixture for the blisk, the outer diameter of the nut is smaller than the inner diameter of the positioning hole III of the cover plate, the opening width of the opening gasket is not smaller than the outer diameter of the first step shaft, the opening gasket can be easily detached from the side, the cover plate and the parts can be detached in sequence without detaching the nut 5, the clamping time is saved, and the clamping efficiency is improved.
(2) The flexible clamping device for the blisk provided by the utility model has the advantages that the clamping of the blisk with more types is realized by replacing the replaceable mandrels with other sizes, the application range is increased, the cost is reduced, the design is simple, the maintenance is simple and convenient, the repeated clamping and positioning precision is high, the efficiency is high, and the flexible clamping device is stable and reliable.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a top view of the structure of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a base of an embodiment of the present utility model;
FIG. 4 is a top plan view of the base of an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of the structure of the replaceable mandrel according to the embodiment of the present utility model;
FIG. 6 is a top view of the structure of a replaceable mandrel in accordance with an embodiment of the present utility model;
FIG. 7 is a schematic view of a cover plate according to an embodiment of the present utility model;
FIG. 8 is a schematic view of the construction of an embodiment of an split washer of the present utility model;
FIG. 9 is a structural cross-sectional view of an embodiment of an split washer of the present utility model;
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, a blisk flexible clip according to the present utility model will be described in further detail with reference to the accompanying drawings.
In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in the figure-figure, the flexible fixture for the blisk is characterized by comprising a base 1, a replaceable mandrel 2, a cover plate 3, an opening gasket 4 and a nut 5, wherein the replaceable mandrel 2 is arranged on the base 1, the replaceable mandrel 2 is of a stepped columnar structure, the cover plate 3, the opening gasket 4 and the nut 5 are sequentially arranged on the stepped surface of the replaceable mandrel 2, and a part 36 is arranged between the replaceable mandrel 2 and the cover plate 3.
The base 1 is of an integral cylindrical structure with two open ends, the outer outline of the base 1 is sequentially provided with a first step 8, a second step 9 and a third step 10, the outer diameters of the first step 8 and the third step 10 are larger than the outer diameter of the second step 9, screw countersinks 37 are uniformly distributed on the first step 8, the base 1 is installed on a machine tool workbench by arranging screws to penetrate through the screw countersinks 37, and threaded holes 15 are uniformly distributed on the third step 10.
The middle position of the third step 10 is provided with a positioning hole 13, the middle positions of the first step 8 and the second step 9 are provided with a first through hole 14, the inner diameter of the first through hole 14 is larger than that of the positioning hole 13, the upper surface of the third step 10 is an axial positioning surface 11, and the axial positioning surface 11 is provided with a first pin hole 12.
The outer contour of the replaceable mandrel 2 is sequentially provided with a first step shaft 16, a second step shaft 17, a third step shaft 18, a fourth step shaft 19 and a fifth step shaft 20, the outer diameters of which are gradually reduced from top to bottom, the bottom of the fifth step shaft 20 is provided with a sixth step shaft 21, and the outer diameter of the sixth step shaft 21 is smaller than that of the fifth step shaft 20; the fifth step shaft 20 is uniformly provided with countersunk screw holes II 38 along the circumference, the replaceable mandrel 2 passes through the countersunk screw holes II 38 through screws to be installed in the threaded hole 15 of the base 1, the bottom surface of the fifth step shaft 20 is provided with a pin hole II 26, a cylindrical pin 7 is installed in the pin hole II 26, and two ends of the cylindrical pin 7 are arranged in the pin hole I12 and the pin hole II 26 in a zero-clearance sliding fit manner; the center of the replaceable mandrel 2 is provided with a second through hole 30 and a third through hole 31 which are communicated.
The outer wall of the first step shaft 16 is provided with an external thread 22, the radial surface of the second step shaft 17 is provided with a cylindrical positioning surface 23, the radial surface of the third step shaft 18 is provided with a part positioning surface 24, the third step shaft 18 is sleeved with a part 36, the lower end surface of the part 36 is abutted to the part positioning surface 24, and the height of the part 36 is higher than that of the third step shaft 18; a step positioning plane 25 is arranged between the third step shaft 18 and the fourth step shaft 19, a mounting positioning surface 29 is arranged on the radial surface of the sixth step shaft 21, the sixth step shaft 21 is mounted in the positioning hole 13 of the base 1, and the mounting positioning surface 29 is in clearance-free sliding fit with the inner wall of the positioning hole 13; the mounting and positioning surface 29 is provided with a U-shaped groove 28 along the circumference.
The U-shaped groove 28 circumferentially arranged on the positioning surface 29 is used for reducing the contact area with the positioning hole 13 of the base 1, so as to facilitate the installation and the disassembly of the replaceable mandrel 2.
The bottom of the cover plate 3 is provided with a pressing surface 32, and the pressing surface 32 is abutted and attached with the upper end surface of the part 36; the bottom of the cover plate 3 is a pressure-bearing surface 33, a positioning hole III 34 and a through hole IV 35 which are communicated are arranged in the center of the cover plate 3, the cover plate 3 is in clearance fit with the cylindrical positioning surface 23 of the second step shaft 17 through the positioning hole III 34, and the height of the cover plate 3 is higher than that of the second step shaft 17.
The nut 5 and the split washer 4 are sleeved on the first step shaft 16 of the replaceable mandrel 2, the nut 5 and the first step shaft 16 are movably connected through the external thread 22, and the lower end face of the split washer 4 is abutted and attached to the pressure bearing face 33 of the cover plate 3.
The outer diameter of the nut 5 is smaller than the inner diameter of the positioning hole III 34 of the cover plate 3, and the opening width of the split washer 4 is not smaller than the outer diameter of the first step shaft 16.
The specific operation principle of the utility model is as follows:
The center positioning hole of the part 36 passes through the first step shaft 16, the second step shaft 17 and the nut 5 of the replaceable mandrel 2 of the clamp, the lower end surface of the part 36 is positioned and installed on the third step shaft 18, the cover plate 3 passes through the first step shaft 16 and the nut 5 of the replaceable mandrel, the positioning and installation are performed on the second step shaft 17, the pressing surface 32 of the cover plate 3 is jointed with the upper end surface of the part 36, the opening washer 4 is installed between the cover plate 3 and the nut 5, and the nut is screwed, so that the positioning and clamping of the part are completed.
After the part 36 is machined, the nut 5 is loosened, the split washer 4 is removed, and the cover plate 3 and the part 36 can be detached sequentially without detaching the nut 5.
The flexible clamping device is suitable for clamping of integral pressure plates of more types by replacing the replaceable mandrels 2 of other sizes, increases the application range, reduces the cost, is simple in design, convenient to maintain, high in repeated clamping positioning accuracy, high in efficiency, stable and reliable.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a blisk flexibility anchor clamps, its characterized in that, includes base (1), interchangeable dabber (2), apron (3), opening packing ring (4) and nut (5), install interchangeable dabber (2) on base (1), interchangeable dabber (2) are ladder columnar structure, install apron (3), opening packing ring (4) and nut (5) on the step face of interchangeable dabber (2) in proper order, set up part (36) between interchangeable dabber (2) and apron (3).
2. The flexible fixture for the blisk according to claim 1, wherein the base (1) is of an integral cylindrical structure with two open ends, the outer contour of the base (1) is sequentially provided with a first step (8), a second step (9) and a third step (10), the outer diameters of the first step (8) and the third step (10) are larger than the outer diameter of the second step (9), screw countersinks (37) are uniformly distributed on the first step (8), the base (1) is installed on a machine tool workbench through the screw countersinks (37) through set screws, and threaded holes (15) are uniformly distributed on the third step (10).
3. The flexible fixture for the blisk according to claim 2, wherein a positioning hole (13) is formed in the middle position of the third step (10), a first through hole (14) is formed in the middle position of the first step (8) and the second step (9), the inner diameter of the first through hole (14) is larger than that of the positioning hole (13), an axial positioning surface (11) is arranged on the upper surface of the third step (10), and a first pin hole (12) is formed in the axial positioning surface (11).
4. The flexible fixture for the blisk according to claim 1, wherein the outer contour of the replaceable mandrel (2) is sequentially provided with a first step shaft (16), a second step shaft (17), a third step shaft (18), a fourth step shaft (19) and a fifth step shaft (20) with the outer diameter gradually decreasing from top to bottom, a sixth step shaft (21) is arranged at the bottom of the fifth step shaft (20), and the outer diameter of the sixth step shaft (21) is smaller than the outer diameter of the fifth step shaft (20); countersunk screw holes II (38) are uniformly distributed on the fifth step shaft (20) along the circumference, the replaceable mandrel (2) passes through the countersunk screw holes II (38) to be installed in a screw hole (15) of the base (1), a pin hole II (26) is formed in the bottom surface of the fifth step shaft (20), a cylindrical pin (7) is installed in the pin hole II (26), and two ends of the cylindrical pin (7) are arranged in the pin hole I (12) and the pin hole II (26) in a zero-clearance sliding fit mode; the center of the replaceable mandrel (2) is provided with a through hole II (30) and a through hole III (31) which are communicated.
5. The flexible fixture for the blisk according to claim 4, wherein the outer wall of the first step shaft (16) is provided with an external thread (22), the radial surface of the second step shaft (17) is provided with a cylindrical positioning surface (23), the radial surface of the third step shaft (18) is provided with a part positioning surface (24), the third step shaft (18) is sleeved with a part (36), the lower end surface of the part (36) is abutted to the part positioning surface (24), and the height of the part (36) is higher than that of the third step shaft (18); a step positioning plane (25) is arranged between the third step shaft (18) and the fourth step shaft (19), a mounting positioning surface (29) is arranged on the radial surface of the sixth step shaft (21), the sixth step shaft (21) is mounted in the positioning hole (13) of the base (1), and the mounting positioning surface (29) is in clearance-free sliding fit with the inner wall of the positioning hole (13); the mounting and positioning surface (29) is provided with a U-shaped groove (28) along the circumference.
6. The blisk flexible clamp according to claim 1, wherein the bottom of the cover plate (3) is a pressing surface (32), and the pressing surface (32) is abutted against the upper end face of the part (36); the bottom of apron (3) is pressure-bearing surface (33), and the center of apron (3) is provided with locating hole three (34) and through-hole four (35) of intercommunication, and apron (3) carry out clearance fit through locating hole three (34) and cylinder locating surface (23) of second step axle (17), and the height of apron (3) is higher than the height of second step axle (17).
7. The flexible fixture for the blisk according to claim 1, wherein the nut (5) and the opening washer (4) are sleeved on a first step shaft (16) of the replaceable mandrel (2), the nut (5) and the first step shaft (16) are movably connected with each other through external threads (22), and the lower end face of the opening washer (4) is abutted to a bearing face (33) of the cover plate (3).
8. A blisk flexing jig as claimed in claim 1, characterised in that the outer diameter of the nut (5) is smaller than the inner diameter of the locating hole three (34) of the cover plate (3), and the opening width of the opening washer (4) is not smaller than the outer diameter of the first step shaft (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323256110.8U CN221415798U (en) | 2023-11-30 | 2023-11-30 | Flexible fixture for blisk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323256110.8U CN221415798U (en) | 2023-11-30 | 2023-11-30 | Flexible fixture for blisk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221415798U true CN221415798U (en) | 2024-07-26 |
Family
ID=91972389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323256110.8U Active CN221415798U (en) | 2023-11-30 | 2023-11-30 | Flexible fixture for blisk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221415798U (en) |
-
2023
- 2023-11-30 CN CN202323256110.8U patent/CN221415798U/en active Active
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