CN216178502U - Boring tool for inner barrel of main undercarriage of A320 machine type - Google Patents
Boring tool for inner barrel of main undercarriage of A320 machine type Download PDFInfo
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- CN216178502U CN216178502U CN202122113280.5U CN202122113280U CN216178502U CN 216178502 U CN216178502 U CN 216178502U CN 202122113280 U CN202122113280 U CN 202122113280U CN 216178502 U CN216178502 U CN 216178502U
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Abstract
The utility model discloses an A320 model main undercarriage inner cylinder boring tool, which comprises a main locking component and an auxiliary locking component which are detachably arranged on a boring machine workbench, wherein the main locking component comprises a main bearing seat, the top of the main bearing seat is provided with a main pressure plate capable of lifting and pressurizing, and the bottom of the main pressure plate is provided with a pressure block; the bottom of the pressing block and the top of the main bearing seat are both provided with a V-shaped groove, and the openings of the V-shaped grooves of the pressing block and the main bearing seat are opposite up and down and are matched with each other; the auxiliary locking assembly comprises an auxiliary supporting seat and an auxiliary pressing plate, a liftable bolt ejector rod is arranged on the auxiliary supporting seat, a supporting head is arranged at the top of the bolt ejector rod, and a V-shaped groove is formed in the supporting head; the auxiliary pressure plate is erected above the supporting head in a height-adjustable manner through a connecting piece and is matched with the V-shaped groove in the supporting head up and down; the utility model can reduce the clamping times, shorten the working time and improve the convenience.
Description
Technical Field
The utility model relates to a boring tool for aircraft parts, in particular to a boring tool for an inner barrel of a main landing gear of an A320 model.
Background
The main landing gear is a key component of the aircraft and is used for bearing corresponding loads when the aircraft takes off and lands and is parked on the ground. The connection part of the inner cylinder and the outer cylinder of the main landing gear of the airplane is greatly loaded and influenced by weather environment, so that the inner wall of the hole and the end face of the hole are easily corroded. Referring to fig. 1, the inner barrel of the a320 main landing gear is of a T-shaped structure, the weight is about 115KG, and after corrosion occurs on the inner wall or the end face of the hole at the positions of the inner barrels a, b, c and d, the inner hole or the end face corrosion part needs to be removed by boring or milling, so that the repair requirement specified by a CMM (parts maintenance manual) is met.
The existing boring tool for the A320 main landing gear inner barrel is difficult to find the center and heavy in weight when in use, and can finish the processing operation of the main landing gear inner barrel only by clamping for many times, so that the preparation working time is long, and the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing the boring tool for the inner barrel of the main landing gear of the A320 model, which is convenient to center, can reduce the clamping times, shortens the preparation working time and improves the operation convenience.
The technical scheme adopted by the utility model is as follows:
a boring tool for an inner cylinder of a main landing gear of an A320 model is characterized by comprising a main locking component and an auxiliary locking component which are detachably arranged on a boring machine workbench, wherein,
the main locking assembly comprises a main supporting seat, the top of the main supporting seat is provided with a main pressure plate capable of lifting and pressurizing, and the bottom of the main pressure plate is provided with a pressure block; the bottom of the pressing block and the top of the main bearing block are both provided with a V-shaped groove, and the openings of the V-shaped grooves of the pressing block and the main bearing block are opposite up and down and are matched with each other to position and clamp the outer cylinder connecting end of the inner cylinder of the main landing gear;
the auxiliary locking assembly comprises an auxiliary supporting seat and an auxiliary pressing plate, a liftable bolt ejector rod is arranged on the auxiliary supporting seat, a supporting head is arranged at the top of the bolt ejector rod, and a V-shaped groove is formed in the supporting head; the auxiliary pressure plate is erected above the supporting head in a height-adjustable mode through the connecting piece, and is matched with the V-shaped groove in the supporting head up and down to position and clamp the wheel connecting end of the main undercarriage inner cylinder.
On the basis of the technical scheme, the utility model can be improved as follows:
preferably, vertical screw holes are drilled outside two sides of the V-shaped groove on the main bearing seat and connected with studs, the upper ends of the studs penetrate through corresponding through holes on the main pressing plate and then are screwed with first locking nuts for locking and fixing, and screw holes for locking the studs are arranged on the side surface of the main bearing seat.
Preferably, the auxiliary supporting seat is a cylinder with a downward opening and an open hole at the bottom, two sides of the auxiliary supporting seat are correspondingly provided with vertical elongated holes communicated with the cylinder cavity, and the top of the auxiliary supporting seat is provided with a second lock nut capable of horizontally rotating; after the bolt ejector rod is in threaded connection with the second locking nut, the lower end of the bolt ejector rod penetrates through the through hole in the cylinder bottom of the auxiliary supporting seat, extends into the cylinder cavity, is drilled with a transverse through hole and is inserted with a limiting pin, and two ends of the limiting pin extend into the long hole opposite to the limiting pin and slide along the long hole.
Preferably, the connecting piece comprises a supporting rod and a pressing rod, the upper section of the supporting rod is a threaded section, and a first stop nut is screwed firstly and then penetrates out of a through hole at one end of the auxiliary pressing plate; the upper section of the pressure lever is a threaded section, and is directly threaded through the middle through hole of the auxiliary pressure plate and then is in threaded connection with a second stop nut; the lower ends of the supporting rod and the pressing rod are connected to the boring machine workbench and provided with T-shaped connecting blocks matched with the mounting groove of the boring machine workbench.
Further, the middle through hole on the auxiliary pressure plate is a long through hole which is transversely arranged.
Furthermore, the V-shaped groove on the main bearing seat, the V-shaped groove on the supporting head and the clamping surface of the auxiliary pressure plate are all provided with copper cushion blocks and fixed by countersunk bolts.
Compared with the prior art, the technology of the utility model has the following advantages:
(1) according to the utility model, the main locking component and the auxiliary locking component can fix the inner cylinder of the main landing gear on the boring machine workbench to realize one-time clamping and multi-aperture boring, and meanwhile, the inner cylinder of the main landing gear can be self-centered by utilizing the V-shaped groove, and the clamping heights and positions of the main locking component and the auxiliary locking component can be adjusted according to the size of the main landing gear, so that the requirements of different clamping are met, the clamping times are reduced, the processing time is shortened, and the convenience is improved;
(2) the main landing gear inner barrel anti-scratching device is provided with the cushion blocks, the cushion blocks are copper blocks, the copper blocks have certain ductility, the main landing gear inner barrel can be prevented from being scratched, the compression resistance of the copper blocks is good, the compression deformation is small, and the processing precision is prevented from being influenced.
Drawings
The utility model is described in further detail below with reference to the figures and the specific embodiments
FIG. 1 is a schematic structural view of a main landing gear inner barrel;
FIG. 2 is a schematic structural diagram of an embodiment;
FIG. 3 is a schematic structural view of the main bearing seat in the embodiment;
FIG. 4 is a schematic structural diagram of a secondary support base in an embodiment;
fig. 5 is a schematic structural view of a connector in the embodiment.
Reference numbers on the drawings: 1-a boring machine workbench, 2-a main bearing seat, 3-a main pressing plate, 4-a pressing block, 5-an auxiliary bearing seat, 6-an auxiliary pressing plate, 7-a bolt ejector rod, 8-a supporting head, 9-a stud, 10-a first locking nut, 11-a screw hole, 12-a cylinder cavity, 13-a second locking nut, 14-a limiting pin, 15-a supporting rod, 16-a pressing rod, 17-a first stop nut, 18-a second stop nut, 19-a cushion block, 20-a T-shaped connecting block and 21-a long hole.
Detailed Description
Referring to fig. 2, the boring tool for the inner cylinder of the main landing gear of the a320 model of the embodiment comprises a main locking component and an auxiliary locking component, wherein the main locking component and the auxiliary locking component are installed on a boring machine workbench 1 through bolts; the main locking component comprises a main bearing seat 2, a main pressure plate 3 capable of lifting and pressurizing is arranged at the top of the main bearing seat 2, and a pressure block 4 is arranged at the bottom of the main pressure plate 3; the bottom of the pressing block 4 and the top of the main bearing block 2 are both provided with a V-shaped groove, and the openings of the V-shaped grooves of the pressing block and the main bearing block are opposite up and down and are matched with each other to position and clamp the outer cylinder connecting end of the inner cylinder of the main landing gear; the auxiliary locking component comprises an auxiliary supporting seat 5 and an auxiliary pressure plate 6, a liftable bolt ejector rod 7 is arranged on the auxiliary supporting seat 5, a supporting head 8 is arranged at the top of the bolt ejector rod 7, and a V-shaped groove is formed in the supporting head 8; the auxiliary pressure plate 6 is erected above the supporting head 8 through a connecting piece in a height-adjustable mode, and is matched with the V-shaped groove in the supporting head 8 up and down to position and clamp the wheel connecting end of the main landing gear inner cylinder; therefore, the boring tool for the inner cylinder of the main landing gear of the A320 model in the embodiment can realize one-time clamping and multi-aperture boring, and meanwhile, the inner cylinder of the main landing gear can be self-centered by utilizing the V-shaped groove, and the clamping heights and the positions of the main locking assembly and the auxiliary locking assembly can be adjusted according to the size of the main landing gear, so that the boring tool is suitable for different clamping requirements, the clamping times are reduced, the processing time is shortened, and the convenience is improved.
Referring to fig. 3, in the present embodiment, vertical screw holes are drilled outside two sides of the V-shaped groove on the main supporting seat 2 and are connected with studs 9, and the upper ends of the studs 9 are locked and fixed with first locking nuts 10 screwed after passing through corresponding through holes on the main pressing plate 3; the side surface of the main bearing seat 2 is provided with a screw hole 11 for fastening a stud.
Referring to fig. 4, the auxiliary supporting seat 5 in this embodiment is a cylinder with a downward opening and an opening at the bottom, two sides of the cylinder are provided with vertical long holes 21 communicated with the cylinder cavity 12, and the top of the auxiliary supporting seat 5 is provided with a second lock nut 13 capable of horizontally rotating; the second locking nut 13 is a nut with a locking port at one side, a bolt is connected to the locking port through threads, and the tightening port can be reduced by rotating the bolt, so that the inner diameter of the second locking nut 13 is correspondingly contracted to lock the fixed bolt ejector rod 7; after the bolt mandril 7 is in threaded connection with the second locking nut 13, the lower end of the bolt mandril 7 passes through the through hole at the cylinder bottom of the auxiliary supporting seat 5 and extends into the cylinder cavity 12, then a transverse through hole is drilled and a limit pin 14 is inserted, and two ends of the limit pin 14 extend into the long hole 21 opposite to the limit pin and slide along the long hole 21; by rotating the second lock nut 13, the bolt mandril 7 is vertically lifted relative to the auxiliary supporting seat 5, and meanwhile, the end part of the limit pin 14 is driven to slide in the elongated hole 21, so that the lifting height of the bolt mandril 7 is limited, and the bolt mandril 7 is prevented from being separated from the auxiliary supporting seat 5.
Referring to fig. 5, the connecting member in this embodiment includes a support rod 15 and a press rod 16, an upper section of the support rod 15 is a threaded section, a first stop nut 17 is screwed first and then penetrates upward through a through hole at one end of the auxiliary press plate 6, an upper end of the press rod 16 is a threaded section, and the upper end of the press rod directly penetrates through a middle through hole of the auxiliary press plate 6 and then is connected with a second stop nut 18 through a thread; the middle through hole on the auxiliary pressure plate 6 is a long through hole which is transversely arranged, so that the upper end of the pressure lever 16 can move along the long through hole to adjust the position of the pressure lever 16, and different clamping requirements can be met; the lower ends of the support rod 15 and the pressure rod 16 are connected to the boring machine workbench 1 through bolts and provided with T-shaped connecting blocks 20 matched with the mounting grooves of the boring machine workbench.
The V-arrangement groove on the main bearing seat 2, the V-arrangement groove on the supporting head 8 and the clamping surface of the auxiliary pressure plate 6 in the embodiment are all provided with copper cushion blocks 19 through bolts, the copper cushion blocks 19 have certain ductility, the inner barrel of the main landing gear can be prevented from being scratched, the compression resistance of the copper blocks is good, the compression deformation is small, the processing precision is prevented from being influenced, and the cushion blocks made of other materials can be adopted according to the actual situation.
The above-described embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and various other modifications, substitutions and alterations can be made to the above-described structure of the present invention without departing from the basic technical concept of the present invention as described above, according to the common technical knowledge and conventional means in the field of the present invention.
Claims (6)
1. A boring tool for an inner cylinder of a main landing gear of an A320 model is characterized by comprising a main locking component and an auxiliary locking component which are detachably arranged on a boring machine workbench, wherein,
the main locking assembly comprises a main supporting seat, the top of the main supporting seat is provided with a main pressure plate capable of lifting and pressurizing, and the bottom of the main pressure plate is provided with a pressure block; the bottom of the pressing block and the top of the main bearing block are both provided with a V-shaped groove, and the openings of the V-shaped grooves of the pressing block and the main bearing block are opposite up and down and are matched with each other to position and clamp the outer cylinder connecting end of the inner cylinder of the main landing gear;
the auxiliary locking assembly comprises an auxiliary supporting seat and an auxiliary pressing plate, a liftable bolt ejector rod is arranged on the auxiliary supporting seat, a supporting head is arranged at the top of the bolt ejector rod, and a V-shaped groove is formed in the supporting head; the auxiliary pressure plate is erected above the supporting head in a height-adjustable mode through the connecting piece, and is matched with the V-shaped groove in the supporting head up and down to position and clamp the wheel connecting end of the main undercarriage inner cylinder.
2. The boring tool for the inner cylinder of the main landing gear of the A320 model according to claim 1, wherein vertical screw holes are drilled outside two sides of a V-shaped groove on the main bearing seat and connected with studs, the upper ends of the studs penetrate through corresponding through holes on the main pressure plate and then are screwed with first locking nuts for locking, and screw holes for locking the studs are formed in the side surface of the main bearing seat.
3. The boring tool for the inner cylinder of the main landing gear of the A320 model according to claim 1, wherein the auxiliary supporting seat is a cylinder with a downward opening and an open hole at the bottom of the cylinder, two sides of the auxiliary supporting seat are correspondingly provided with elongated holes which are vertical and communicated with a cylinder cavity, and the top of the auxiliary supporting seat is provided with a second locking nut which can rotate horizontally; after the bolt ejector rod is in threaded connection with the second locking nut, the lower end of the bolt ejector rod penetrates through the through hole in the cylinder bottom of the auxiliary supporting seat, extends into the cylinder cavity, is drilled with a transverse through hole and is inserted with a limiting pin, and two ends of the limiting pin extend into the long hole opposite to the limiting pin and slide along the long hole.
4. The boring tool for the inner cylinder of the main landing gear of the A320 model according to claim 1, wherein the connecting piece comprises a supporting rod and a pressing rod, the upper section of the supporting rod is a threaded section, and a first stop nut is screwed first and then penetrates out of a through hole at one end of the auxiliary pressing plate; the upper section of the pressure lever is a threaded section, and is directly threaded through the middle through hole of the auxiliary pressure plate and then is in threaded connection with a second stop nut; the lower ends of the supporting rod and the pressing rod are connected to the boring machine workbench and provided with T-shaped connecting blocks matched with the mounting groove of the boring machine workbench.
5. The boring tool for the inner barrel of the main landing gear of the A320 model according to claim 4, wherein the middle through hole in the auxiliary pressure plate is a transversely arranged long through hole.
6. The boring tool for the inner cylinder of the main landing gear of the A320 model according to any one of claims 1 to 5, wherein copper cushion blocks are mounted on the clamping surfaces of the V-shaped groove on the main bearing seat, the V-shaped groove on the supporting head and the auxiliary pressure plate and fixed by using countersunk bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122113280.5U CN216178502U (en) | 2021-09-02 | 2021-09-02 | Boring tool for inner barrel of main undercarriage of A320 machine type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122113280.5U CN216178502U (en) | 2021-09-02 | 2021-09-02 | Boring tool for inner barrel of main undercarriage of A320 machine type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216178502U true CN216178502U (en) | 2022-04-05 |
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ID=80917323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122113280.5U Active CN216178502U (en) | 2021-09-02 | 2021-09-02 | Boring tool for inner barrel of main undercarriage of A320 machine type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216178502U (en) |
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2021
- 2021-09-02 CN CN202122113280.5U patent/CN216178502U/en active Active
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