CN219766852U - Drilling fixture for movable joint nut of aeroengine - Google Patents
Drilling fixture for movable joint nut of aeroengine Download PDFInfo
- Publication number
- CN219766852U CN219766852U CN202321362962.2U CN202321362962U CN219766852U CN 219766852 U CN219766852 U CN 219766852U CN 202321362962 U CN202321362962 U CN 202321362962U CN 219766852 U CN219766852 U CN 219766852U
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- China
- Prior art keywords
- movable joint
- joint nut
- section
- positioning
- pressing plate
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 238000003754 machining Methods 0.000 abstract description 6
- 238000003801 milling Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model discloses a drilling fixture for a movable joint nut of an aeroengine, and belongs to the technical field of machining fixtures. The clamp comprises a positioning shaft and a pressing plate, wherein the positioning shaft is a stepped shaft, and the pressing plate is detachably connected with one end of the positioning shaft through a connecting piece. The movable joint nut is clamped and fixed on the positioning shaft, and then the positioning shaft is arranged on an indexing rotary clamp head of the numerical control drilling machine and clamped, so that the functions of indexing, automatic rotation, milling and drilling of the numerical control drilling machine can be fully utilized, and the machining of a wire locking hole on the movable joint nut is realized. The clamp has the advantages of simple structure, convenient and quick clamping and the like.
Description
Technical Field
The utility model relates to a drilling fixture for a movable joint nut of an aeroengine, and belongs to the technical field of machining fixtures.
Background
In the field of aeroengines, various nut products are widely used, mainly in some main body and accessory connection positions. After the parts are connected through the nuts, in order to prevent the nuts from loosening, the nuts are provided with wire locking holes which are at a certain angle with the central shaft. As shown in fig. 1 and 2, the movable joint nut 1 has a cylindrical shape, six grooves 10 are uniformly formed at one end of the movable joint nut 1, a wire locking hole 11 on the movable joint nut 1 is 45 degrees with the center line of the movable joint nut 1, and the movable joint nut 1 is difficult to directly clamp and drill the wire locking hole 11.
The Chinese patent document with publication number of CN201618984U discloses a nut inclined hole drilling clamp, which consists of a base, a positioning block with a notch and a drilling jig, a side positioning mechanism, a supporting block, a clamping pushing rod and a cam mechanism. The positioning block consists of a positioning block base and a positioning template. The positioning block is provided with a notch which is formed by regular six sides and matched with the shape of the nut to be processed, and the opening direction of the notch in the positioning block forms 60 degrees with the central axis a of the drilling jig. The side positioning mechanism is positioned at one side of the positioning block mechanism and fixed on the base, the support block is provided with a sliding groove matched with the transverse movement of the clamping pushing rod, the right side of the support block is provided with a cam mechanism, the cam mechanism comprises a cam surface, a handle and a cam seat, the cam surface is contacted with the clamping pushing rod arranged in the sliding groove, and the cam surface is matched with the rotation of the cam surface to clamp or loosen the processed product.
However, the clamp is only suitable for clamping nuts with regular hexagons, cannot be used for clamping movable joint nuts with cylindrical shapes, and can be used for machining 45-degree wire locking holes.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a drilling fixture for an aeroengine movable joint nut.
The utility model is realized by the following technical scheme:
the utility model provides an aeroengine movable joint nut boring grab, includes locating shaft and clamp plate, the locating shaft is the step shaft, the clamp plate passes through the connecting piece and can dismantle with the one end of locating shaft and be connected.
The positioning shaft comprises a clamping section, an axial positioning section and a radial positioning section which are coaxially arranged, and the radial positioning section is connected with the clamping section through the axial positioning section.
The diameter of the axial positioning section is larger than that of the radial positioning section and that of the clamping section.
And one end of the radial positioning section, which is far away from the axial positioning section, is coaxially provided with a threaded hole.
And one end of the radial positioning section, which is far away from the axial positioning section, is provided with a pressing plate clamping groove.
The connecting piece is a set screw.
And a through hole is formed in the pressing plate.
The utility model has the beneficial effects that: the movable joint nut is clamped and fixed on the positioning shaft, and then the positioning shaft is arranged on an indexing rotary clamp head of the numerical control drilling machine and clamped, so that the functions of indexing, automatic rotation, milling and drilling of the numerical control drilling machine can be fully utilized, and the machining of a wire locking hole on the movable joint nut is realized. The clamp has the advantages of simple structure, convenient and quick clamping and the like.
Drawings
FIG. 1 is a perspective view of a movable joint nut to be machined;
FIG. 2 is a longitudinal cross-sectional view of a movable joint nut to be machined;
FIG. 3 is a schematic view of the structure of the present utility model when clamping a movable joint nut;
FIG. 4 is a schematic view of the structure of FIG. 3 along the direction A;
FIG. 5 is a schematic diagram of a front view of a positioning shaft according to the present utility model;
FIG. 6 is a right side view of FIG. 5;
fig. 7 is a schematic structural view of a platen according to the present utility model.
In the figure: 1-movable joint nuts, 10-grooves, 11-wire locking holes, 2-positioning shafts, 20-clamping sections, 21-axial positioning sections, 22-radial positioning sections, 23-pressing plate clamping grooves, 24-threaded holes, 3-connecting pieces, 4-pressing plates and 40-through holes.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
As shown in fig. 1 to 7, the drilling fixture for the movable joint nut of the aeroengine comprises a positioning shaft 2 and a pressing plate 4, wherein the positioning shaft 2 is a stepped shaft, and the pressing plate 4 is detachably connected with one end of the positioning shaft 2 through a connecting piece 3. When the movable joint nut 1 is used, one end of the positioning shaft 2 is clamped on a chuck which can be indexed and rotated on a numerical control drilling machine, the radial direction of the movable joint nut 1 and one end of the movable joint nut 1 are axially positioned through the positioning shaft 2, then the movable joint nut 1 is pressed through the pressing plate 4, and the other end of the movable joint nut 1 is axially positioned, so that the movable joint nut 1 is clamped and fixed, and then the machining of a wire locking hole 11 on the movable joint nut 1 is realized by adopting a method of milling before drilling.
The positioning shaft 2 comprises a clamping section 20, an axial positioning section 21 and a radial positioning section 22 which are coaxially arranged, and the radial positioning section 22 is connected with the clamping section 20 through the axial positioning section 21.
The diameter of the axial positioning section 21 is larger than that of the radial positioning section 22 and that of the clamping section 20. When the movable joint nut 1 is used, the clamping section 20 is used for being connected with an indexing rotary chuck on a numerical control drilling machine, the step surface formed by the axial positioning section 21 and the radial positioning section 22 is used for positioning the axial direction of one end of the movable joint nut 1, and the radial positioning section 22 is used for being matched with an inner hole of the movable joint nut 1 to position the movable joint nut 1 in the radial direction.
The end of the radial positioning section 22 far away from the axial positioning section 21 is coaxially provided with a threaded hole 24.
The radial positioning section 22 is provided with a pressing plate clamping groove 23 at one end far away from the axial positioning section 21. When the movable joint nut is used, the middle part of the pressing plate 4 is clamped into the pressing plate clamping groove 23, two ends of the pressing plate 4 are correspondingly clamped into two grooves 10 on the movable joint nut 1, the pressing plate 4 is in contact with the bottom surface of the grooves 10, one end, far away from the axial positioning section 21, of the movable joint nut 1 is axially limited through the pressing plate 4, and the movable joint nut 1 can be prevented from rotating around the radial positioning section 22 through the pressing plate 4.
The connecting piece 3 is a set screw.
The pressing plate 4 is provided with a through hole 40. One end of the set screw is threaded through the through hole 40 and then into threaded engagement with the threaded bore 24.
The utility model relates to a drilling clamp for an aeroengine movable joint nut, which has the following working principle:
the movable joint nut 1 is sleeved on a radial positioning section 22 of the positioning shaft 2, one end of the movable joint nut 1, which is provided with a groove 10, is far away from the axial positioning section 21, the axial direction of one end of the movable joint nut 1 is positioned through a step formed by the axial positioning section 21 and the radial positioning section 22, and the radial positioning section 22 is matched with an inner hole of the movable joint nut 1 to position the movable joint nut 1 in the radial direction. The pressing plate 4 is placed in the pressing plate clamping groove 23, and two ends of the pressing plate 4 are correspondingly clamped into the two grooves 10 on the movable joint nut 1; one end of the set screw passes through the through hole 40 to be connected with the threaded hole 24, and the set screw is screwed down to fix the pressing plate 4, so that the pressing plate 4 is used for axially limiting one end, far away from the axial positioning section 21, of the movable joint nut 1, and the movable joint nut 1 is locked and fixed on the positioning shaft 2.
The positioning shaft 2 is arranged on an indexing rotary clamp of a numerical control drilling machine and clamped, the indexing head is rotated to 45 degrees, the drilling center of a wire locking hole 11 on a movable joint nut 1 is rotated to be vertical, the center position of the wire locking hole 11 is determined, a milling cutter is firstly used for milling out a plane at the wire locking hole 11 on the outer circular surface of the movable joint nut 1, and then a drill bit is used for drilling through the movable joint nut 1 to finish the drilling of the wire locking hole 11 at 45 degrees. The rotary chuck rotates 180 degrees to realize the processing of the other wire locking hole 11. Because the numerical control drilling machine has the milling and drilling functions, a drill sleeve is not required to guide a drill bit to drill holes. Through the inspection and the authentication of the movable joint nut 1 of trial processing, the product size and the position precision meet the requirements, the clamping is convenient and the efficiency is high, and the processed product has strong quality stability and high reliability.
Claims (5)
1. An aeroengine movable joint nut boring grab, its characterized in that: the positioning device comprises a positioning shaft (2) and a pressing plate (4), wherein the positioning shaft (2) is a stepped shaft, and the pressing plate (4) is detachably connected with one end of the positioning shaft (2) through a connecting piece (3);
the positioning shaft (2) comprises a clamping section (20), an axial positioning section (21) and a radial positioning section (22) which are coaxially arranged, and the radial positioning section (22) is connected with the clamping section (20) through the axial positioning section (21);
one end of the radial positioning section (22) far away from the axial positioning section (21) is provided with a pressing plate clamping groove (23).
2. The aircraft engine union nut drilling jig of claim 1, wherein: the diameter of the axial positioning section (21) is larger than that of the radial positioning section (22) and that of the clamping section (20).
3. The aircraft engine union nut drilling jig of claim 1, wherein: one end of the radial positioning section (22) far away from the axial positioning section (21) is coaxially provided with a threaded hole (24).
4. The aircraft engine union nut drilling jig of claim 1, wherein: the connecting piece (3) is a set screw.
5. The aircraft engine union nut drilling jig of claim 1, wherein: the pressing plate (4) is provided with a through hole (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321362962.2U CN219766852U (en) | 2023-05-31 | 2023-05-31 | Drilling fixture for movable joint nut of aeroengine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321362962.2U CN219766852U (en) | 2023-05-31 | 2023-05-31 | Drilling fixture for movable joint nut of aeroengine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219766852U true CN219766852U (en) | 2023-09-29 |
Family
ID=88104016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321362962.2U Active CN219766852U (en) | 2023-05-31 | 2023-05-31 | Drilling fixture for movable joint nut of aeroengine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219766852U (en) |
-
2023
- 2023-05-31 CN CN202321362962.2U patent/CN219766852U/en active Active
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