CN115041727A - Coaxiality adjusting device for outer barrel of aircraft landing gear - Google Patents
Coaxiality adjusting device for outer barrel of aircraft landing gear Download PDFInfo
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- CN115041727A CN115041727A CN202210890818.XA CN202210890818A CN115041727A CN 115041727 A CN115041727 A CN 115041727A CN 202210890818 A CN202210890818 A CN 202210890818A CN 115041727 A CN115041727 A CN 115041727A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The invention belongs to the technical field of boring device preparation, in particular to an outer cylinder coaxiality adjusting device of an aircraft landing gear, and aims at solving the problem that the existing boring device needs to readjust coaxiality when reaming, which causes trouble and labor consumption, the following scheme is provided. According to the invention, after one hole is formed, the detection rod extends into the hole, the axial degree adjusting sliding chute and the boring mechanism above the axial degree adjusting sliding chute are integrally moved along the strip-shaped sliding hole, so that coaxial holes can be formed, and when hole expansion is required, the eccentric distance between the boring cutter rod fixing block and the boring cutter rotating rod is adjusted.
Description
Technical Field
The invention relates to the technical field of boring device preparation, in particular to an outer cylinder coaxiality adjusting device of an aircraft landing gear.
Background
At present, in the mechanical finish machining process, a plurality of groups of holes with higher coaxiality requirements are often drilled on a large workpiece, such as an outer cylinder of an aircraft landing gear, the distance between the holes is longer, the machining length of a common boring machine cannot exceed the effective feeding distance, namely, the common boring machine cannot realize long distance and hole machining with higher coaxiality requirements, if special equipment is purchased for the machining, the special equipment does not accord with market benefits and enterprise operation concepts, the cost is higher, and the special equipment cannot be popularized and applied.
Through search, the patent with the Chinese patent publication number of CN105728791A discloses a device for multi-group long-distance coaxial boring. It includes: the device comprises a three-phase asynchronous motor, a cycloidal pin gear reducer, a movable carriage, a fixed carriage, a T-shaped lead screw, a T-shaped copper nut, an axial thrust bearing, a longitudinal movement adjusting nut, a boring bar fixing seat A, a boring bar fixing seat B, a thrust bearing, a pinion, a bull gear, a radial bearing, a boring bar, a boring machine fixing rod and the like; although the device can be used for processing two holes at a certain distance in a coaxial manner, once the hole diameter is changed, the device needs to be readjusted, which is time-consuming and labor-consuming.
Disclosure of Invention
The invention provides an aircraft landing gear outer barrel coaxiality adjusting device, which comprises a workbench, wherein the upper surface of the workbench is integrally in a long strip-shaped structure, a side baffle is fixed on one end, close to the upper surface, of the workbench, a triangular hole matched with the inner diameter of the outer barrel is formed in the middle of the side baffle, an anti-deviation positioning device is arranged in the triangular hole, a movable clamping mechanism is fixed on one end, far away from the side baffle, of the workbench, the outer barrel is fixed between the movable clamping mechanism and the anti-deviation positioning device, the extension direction of the outer barrel is parallel to the length direction of the workbench, a strip-shaped sliding hole parallel to the long edge is formed in one side, close to the long edge, of the upper surface of the workbench, a sliding seat is connected in the strip-shaped sliding hole in a sliding mode, an axial degree adjusting sliding groove with an upward opening is fixed at the top end of the sliding seat, a bearing sliding block is connected in the sliding groove of the axial degree adjusting sliding groove in a sliding mode, and a boring hole mechanism is arranged at the top end of the bearing sliding block, the boring mechanism comprises a bearing seat which is fixed on the side surface of the bearing slide block and close to the top end, the middle of the bearing seat is rotatably connected with a horizontally arranged transmission rod, a boring cutter bar fixing block and a detection rod are respectively fixed at two ends of the transmission rod, a boring cutter rotating rod is inserted at one end, far away from the transmission rod, of the boring cutter bar fixing block, an extension screw rod is inserted at one end, far away from the transmission rod, of the detection rod, and a detection conical block is sleeved on the outer wall of the extension screw rod; through the arrangement of the detection rod and the boring cutter rotating rod which are arranged at the two ends of the transmission rod, when two workpieces far away from each other are required to be provided with the coaxial hole, the detection rod is stretched into the hole only after one hole is formed, and then the axial degree adjusting sliding groove and the boring hole mechanism above the sliding groove are moved along the strip-shaped sliding hole integrally, so that the coaxial hole can be formed, and the eccentric distance between the boring cutter rod fixing block and the boring cutter rotating rod is required to be adjusted when hole expansion is required.
Preferably, a hexagonal sliding hole is formed in one end, close to the boring cutter rotating rod, of the boring cutter rod fixing block, a hexagonal prism head and a cutter head clamping groove which are matched with the hexagonal sliding hole are reserved at two ends of the boring cutter rotating rod respectively, a first screw hole penetrating through an axis is formed in the outer wall of the hexagonal prism head, a anti-channeling through hole penetrating through the hexagonal sliding hole is formed in the side surface of the boring cutter rod fixing block, a double-head screw is rotatably connected in the anti-channeling through hole, the middle of the double-head screw penetrates through the first screw hole, and a hexagonal sinking groove is formed in one end, far away from the outer cylinder, of the double-head screw; through the setting of the hexagonal column cap that can sliding connection in the hexagonal slide opening to and double-threaded screw's regulation, boring cutter bull stick and transfer line coaxial distribution under normal conditions, when boring cutter bull stick along hexagonal slide opening radial movement, the tool bit radius of rotation of boring cutter bull stick tip increases promptly, can carry out the reaming.
Preferably, the upper surface and the lower surface of the hexagonal column head are both reserved with a rib strip parallel to the screw hole I, and a clamping groove matched with the rib strip is formed in the hexagonal sliding hole; the phenomenon that the boring cutter rotating rod cannot rotate when the position of the cutter head is stressed is ensured, and the stability of the boring cutter rotating rod during boring is ensured.
Preferably, a driven gear is fixed at one end, away from the boring cutter bar fixing block, of the circumferential outer wall of the transmission rod, a driving motor is fixed at one side, away from the bearing block, of the upper surface of the bearing slider, a driving gear is fixed at the top end of an output shaft of the driving motor, an intermediate gear is arranged between the driving gear and the driven gear on the side surface of the bearing slider, the intermediate gear is meshed with the driven gear and the driving gear respectively, symmetrical tapered roller bearings are embedded at two ends of the bearing block respectively, and the inner diameter of an inner ring of each tapered roller bearing is matched with the diameter of the transmission rod; through the arrangement of the double bearings, the radial force bearing capacity of the transmission rod can be improved, so that the boring cutter rotating rod is more stable in propelling, the phenomenon of rod body shaking cannot be caused, and the hole drilling precision is improved.
Preferably, the whole detection rod is of a tubular structure with threads formed inside, a detection conical block is screwed on the outer wall of the extension screw, and the maximum outer diameter of the detection conical block is larger than the target aperture; through the setting of the detection taper block, when another hole is bored, the detection taper block is moved to the position close to the orifice of the previous hole in a spiral mode, and then the bearing slide block and the boring mechanism at the top end of the bearing slide block are adjusted until the outer wall of the circumference of the detection taper block is fully contacted with the edge of the orifice, so that the target punching position and the previous hole are coaxial.
Preferably, the lower surface of the bearing slider is provided with a mounting groove, an internal thread pipe is clamped in the mounting groove, the axial lead of the internal thread pipe is parallel to the extending direction of the axial degree adjusting chute, the middle of the internal thread pipe is rotatably connected with a self-locking screw rod, a positioning baffle is fixed at one end, away from the outer barrel, of the bottom of the axial degree adjusting chute, annular check rings are fixed at two sides, away from the positioning baffle, of the circumferential outer wall of the self-locking screw rod, an adjusting rod II is arranged at one end, away from the bearing slider, of the self-locking screw rod, a first adjusting rod is inserted in the hexagonal sinking groove, an outer cover is fixed at the top end of the axial degree adjusting chute, and an adjusting hole matched with the first adjusting rod and the second adjusting rod is formed in the outer cover; through the setting of two regulation holes, the target hole that needs to be seted up that can be convenient carries out the regulation of axiality regulation and aperture for it is more convenient to adjust, so that carry out better the accuse to the precision.
Preferably, an internal thread block I is fixed on the lower surface of the sliding seat, a transmission screw rod II is rotatably connected in the middle of the internal thread block I, a servo motor is fixed on the lower surface of the workbench at the end part of the transmission screw rod II, and the end part of an output shaft of the servo motor is fixed on the end part of the transmission screw rod II through a coupler; balls are arranged on the contact surfaces of the sliding seat and the workbench; the stability of sliding seat removal has been improved.
Preferably, the movable clamping mechanism comprises a groove-shaped slide rail embedded on the upper surface of the workbench near the end, the opening of the groove-shaped slide rail is upward, a rectangular hole is formed at the bottom of the groove-shaped slide rail, a boss slide block is connected in a slide groove of the groove-shaped slide rail in a sliding manner, a stop block is fixed at the top end of the boss slide block, a conical top block is fixed at one end of the stop block close to the outer cylinder, the axial lead of the conical top block coincides with the axial lead of the outer cylinder, and the moving direction of the boss slide block is parallel to the axial lead of the outer cylinder; the lower surface of the boss sliding block is fixedly provided with a second internal thread block penetrating through the rectangular hole, the middle of the second internal thread block is rotatably connected with a first transmission screw hole, the lower surface of the groove-shaped sliding rail is fixedly provided with baffle blocks at two ends of the first transmission screw hole, and the first transmission screw hole penetrates through one of the baffle blocks and is fixedly provided with a poking wheel; through the comprehensive setting of the poking wheel and the conical top block, the outer barrel can be tightly fixed above the workbench and can rotate around the axial center, so that the most suitable boring position is reserved.
Preferably, the anti-deviation positioning device comprises an L-shaped supporting seat fixed at one end of the workbench close to the side baffle, an electric push rod is fixed at the top end of the L-shaped supporting seat through a bolt, a supporting rod is fixed at the end part of an extension rod of the electric push rod, three pull ropes are fixed at the end part of the supporting rod, a conical reaming hole is formed at an opening part of one end of a triangular hole close to the electric push rod, three inner walls of three sides of the triangular hole are rotatably connected with positioning rods which are symmetrically distributed with each other in a central manner, the whole positioning rod is of an L-shaped structure, supporting blocks and rope fixing holes are respectively reserved at two ends of the positioning rod, the rope fixing holes are respectively fixed with the end parts of the three pull ropes, a shaft rod is arranged in the middle of each positioning rod, shaft rod fixing blocks are respectively arranged at two ends of the shaft rod, three spring stop blocks symmetrically distributed with the centers are fixed at the circumferential edge of the side baffle close to the conical reaming hole on the surface of the side baffle, and tension spring springs are arranged between the spring stop blocks and the rod bodies of the corresponding positioning rods; through the setting of three locating lever cooperation stay cord, can expand when fixed to the urceolus, only need control electric putter's extension rod to stretch out, can let the one end perk simultaneously that three locating lever is close to the urceolus, support the urceolus tightly then.
Preferably, the aperture of the triangular hole is smaller than the inner diameter of the outer cylinder, a rubber ball is arranged at one end of the positioning rod close to the outer cylinder, and a strip-shaped through hole matched with the position of the extension screw is formed in the side baffle; the fixing effect of the positioning rod is better, and the anti-slip and anti-drop effects are achieved.
The beneficial effects of the invention are as follows:
1. through setting up the setting at the measuring bar and the boring cutter arbor fixed block at transfer line both ends, when need to open coaxial hole to two work pieces far away from, only need after seting up a hole, stretch into the measuring bar in this hole, if the measuring bar is just being in the central point in this hole and puts, then the hole that the other end need be seted up then with this hole coaxial, later along the bar slide opening bulk motion axiality adjust spout and the boring mechanism above that, can carry out seting up coaxial hole, and need adjust the eccentric distance of boring cutter arbor fixed block and boring cutter bull stick when needing to carry out reaming can.
2. Through the setting of the hexagonal column cap that can sliding connection in the hexagonal slide opening to and double-threaded screw's regulation, boring cutter bull stick and transfer line coaxial distribution under normal conditions, when boring cutter bull stick along hexagonal slide opening radial movement, the tool bit radius of rotation of boring cutter bull stick tip increases promptly, can carry out the reaming.
3. The bearing seat is connected with two symmetrical tapered roller bearings in a clamped manner, so that the capability of the transmission rod for bearing radial force can be improved, the boring cutter rotating rod is more stable in propelling, the phenomenon of rod body shaking cannot be caused, and the accuracy of hole forming is improved.
4. Through the setting of the detection taper block, when another hole is bored, the detection taper block is moved to the position close to the orifice of the previous hole in a spiral mode, and then the bearing slide block and the boring mechanism at the top end of the bearing slide block are adjusted until the outer wall of the circumference of the detection taper block is fully contacted with the edge of the orifice, so that the target punching position and the previous hole are coaxial.
5. Through the setting of three locating lever cooperation stay cord, can expand when fixed to the urceolus, only need control electric putter's extension rod to stretch out, can let the one end perk simultaneously that three locating lever is close to the urceolus, support the urceolus tightly then.
Drawings
FIG. 1 is a schematic overall structure diagram of an aircraft landing gear outer cylinder coaxiality adjusting device provided by the invention;
FIG. 2 is a schematic view of a bottom view of the coaxiality adjusting device of the outer cylinder of the landing gear of the airplane provided by the invention;
FIG. 3 is a top view of the outer cylinder coaxiality adjusting device of the landing gear of the airplane provided by the invention with the outer cylinder removed;
FIG. 4 is an assembly structure diagram of a boring mechanism in the coaxiality adjusting device of the outer cylinder of the landing gear of the airplane;
FIG. 5 is an assembly view of a detection rod in the coaxiality adjusting device of the outer cylinder of the landing gear of the airplane provided by the invention;
FIG. 6 is a front structural view of an anti-deviation positioning device of an aircraft landing gear outer cylinder coaxiality adjusting device provided by the invention before installation;
FIG. 7 is a back structure view of the anti-deviation positioning device of the outer cylinder coaxiality adjusting device of the aircraft landing gear, which is provided by the invention, before installation;
fig. 8 is an assembly view of a single positioning rod in the coaxiality adjusting device of the outer cylinder of the landing gear of the airplane.
In the figure: 1. a work table; 2. a side dam; 201. a triangular hole; 202. carrying out taper hole expansion; 3. perforating in a strip shape; 4. an L-shaped support seat; 5. an anti-deviation positioning device; 51. an electric push rod; 52. pulling a rope; 53. positioning a rod; 54. a tension spring; 55. a spring stop; 56. a shaft lever fixing block; 6. a detection lever; 7. a transmission rod; 8. a driven gear; 9. a boring cutter rotating rod; 10. an outer cylinder; 11. moving the clamping mechanism; 111. a groove-shaped sliding rail; 112. a conical top block; 113. a stopper; 114. a first transmission screw hole; 115. a boss slider; 12. a strip-shaped slide hole; 13. adjusting a rod I; 14. a housing; 15. a second adjusting rod; 16. an axial degree adjusting chute; 17. a sliding seat; 18. a second transmission screw; 19. an extension screw; 20. detecting a conical block; 21. anti-channeling perforation; 22. a boring cutter bar fixing block; 23. a bearing seat; 24. a load bearing slider; 25. an active motor; 26. a self-locking screw; 27. an internally threaded tube; 28. a double-ended screw; 29. a first screw hole; 30. six smooth holes of arris.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-8, the coaxiality adjusting device of the outer cylinder of the aircraft landing gear comprises a workbench 1, wherein the whole upper surface of the workbench 1 is of a long strip-shaped structure, a side baffle 2 is fixed on the upper surface of the workbench 1 close to one end of the workbench, a triangular hole 201 matched with the inner diameter of the outer cylinder 10 is formed in the middle of the side baffle 2, an anti-deviation positioning device 5 is arranged in the triangular hole 201, and a movable clamping mechanism 11 is fixed on one end, far away from the side baffle 2, of the workbench 1; the outer cylinder 10 is suspended and fixed above the workbench 1; an outer cylinder 10 is fixed between a movable clamping mechanism 11 and an anti-deviation positioning device 5, the extension direction of the outer cylinder 10 is parallel to the length direction of a workbench 1, one side of the upper surface of the workbench 1, which is close to the edge of a long edge, is provided with a strip-shaped sliding hole 12 parallel to the long edge, a sliding seat 17 is connected in the strip-shaped sliding hole 12 in a sliding manner, the top end of the sliding seat 17 is fixed with an axial degree adjusting sliding groove 16 with an upward opening, a bearing slider 24 is connected in the sliding groove of the axial degree adjusting sliding groove 16 in a sliding manner, the top end of the bearing slider 24 is provided with a boring mechanism, the boring mechanism comprises a bearing seat 23 fixed on the side surface of the bearing slider 24, which is close to the top end, the middle of the bearing seat 23 is rotatably connected with a horizontally arranged transmission rod 7, two ends of the transmission rod 7 are respectively fixed with a boring cutter rod fixing block 22 and a detection rod 6, one end of the boring cutter rod fixing block 22, which is far away from the transmission rod 7, is inserted with a boring cutter rotating rod 9, an extension screw rod 19 is inserted into one end, far away from the transmission rod 7, of the detection rod 6, and a detection conical block 20 is sleeved on the outer wall of the extension screw rod 19; through the arrangement of the detection rod 6 and the boring cutter rotating rod 9 which are arranged at the two ends of the transmission rod 7, when two workpieces which are far away from each other are required to be drilled with a same shaft hole, the detection rod 6 is stretched into the hole only after one hole is drilled, the shaft degree adjusting sliding groove 16 and the boring hole mechanism above the sliding groove are integrally moved along the strip-shaped sliding hole 12, the coaxial hole can be drilled, and only the eccentric distance between the boring cutter rod fixing block 22 and the boring cutter rotating rod 9 needs to be adjusted when hole expansion is required.
A hexagonal sliding hole 30 is formed in one end, close to the boring cutter rotating rod 9, of the boring cutter rod fixing block 22, hexagonal prism heads and cutter head clamping grooves matched with the hexagonal sliding hole 30 are reserved at two ends of the boring cutter rotating rod 9 respectively, a first screw hole 29 penetrating through an axis is formed in the outer wall of the hexagonal prism head, a fleeing-proof through hole 21 penetrating through the hexagonal sliding hole 30 is formed in the side face of the boring cutter rod fixing block 22, a double-threaded screw 28 is rotatably connected in the fleeing-proof through hole 21, the middle of the double-threaded screw 28 penetrates through the first screw hole 29, and a hexagonal sunk groove is formed in one end, far away from the outer barrel 10, of the double-threaded screw 28; through the arrangement of the hexagonal column heads which can be connected in the hexagonal slide holes 30 in a sliding manner and the adjustment of the double-threaded screw 27, the boring cutter rotating rod 9 and the transmission rod 7 are distributed coaxially under normal conditions, and when the boring cutter rotating rod 9 moves along the hexagonal slide holes 30 in the radial direction, namely the rotating radius of the cutter head at the end part of the boring cutter rotating rod 9 is increased, reaming can be carried out.
Referring to fig. 4, rib strips parallel to the screw holes 29 are reserved on the upper and lower surfaces of the hexagonal column head, and clamping grooves matched with the rib strips are formed in the hexagonal sliding holes 30; the phenomenon that the boring cutter rotating rod 9 cannot rotate when the position of a cutter head is stressed is ensured, and the stability of the boring cutter rotating rod 9 in boring is ensured.
Referring to fig. 4, a driven gear 8 is fixed at one end of the circumferential outer wall of the transmission rod 7, which is far away from the boring cutter bar fixing block 22, a driving motor 25 is fixed at one side of the upper surface of the bearing slider 24, which is far away from the bearing seat 23, a driving gear is fixed at the top end of an output shaft of the driving motor 25, an intermediate gear is arranged between the driving gear and the driven gear 8 at the side surface of the bearing slider 24, the intermediate gear is respectively meshed with the driven gear 8 and the driving gear, symmetrical tapered roller bearings are respectively embedded at two ends of the bearing seat 23, and the inner diameter of the inner ring of each tapered roller bearing is matched with the diameter of the transmission rod 7; through the arrangement of the double bearings, the capability of the transmission rod 7 for bearing radial force can be improved, the boring cutter rotating rod 9 is more stable in propelling, the phenomenon of rod body shaking cannot be caused, and the hole drilling precision is improved.
Referring to fig. 4-5, the whole detection rod 6 is of a tubular structure with threads formed inside, a detection conical block 20 is screwed on the outer wall of the extension screw 19, and the maximum outer diameter of the detection conical block 20 is larger than the target aperture; through the arrangement of the detection taper block 20, when another hole is bored, the detection taper block 20 is firstly moved to the position close to the orifice of the previous hole in a spiral manner, and then the bearing slide block 24 and the boring mechanism at the top end of the bearing slide block are adjusted until the circumferential outer wall of the detection taper block 20 is fully contacted with the edge of the orifice, so that the target boring position is coaxial with the previous hole.
Referring to fig. 4, the lower surface of the bearing slider 24 is provided with a mounting groove, an internal threaded pipe 27 is clamped in the mounting groove, the axial lead of the internal threaded pipe 27 is parallel to the extending direction of the axial adjusting chute 16, the middle of the internal threaded pipe 27 is rotatably connected with a self-locking screw 26, a positioning baffle is fixed at one end, away from the outer cylinder 10, of the bottom of the axial adjusting chute 16, annular check rings are fixed at two sides of the positioning baffle on the circumferential outer wall of the self-locking screw 26, an adjusting rod II 15 is arranged at one end, away from the bearing slider 24, of the self-locking screw 26, a adjusting rod I13 is inserted in the hexagonal sinking groove, an outer cover 14 is fixed at the top of the axial adjusting chute 16, and an adjusting hole matched with the adjusting rod I13 and the adjusting rod II 15 is formed in the outer cover 14; through the setting of two regulation holes, the target hole that needs to be seted up that can be convenient carries out the regulation of axiality regulation and aperture for it is more convenient to adjust, so that carry out better the accuse to the precision.
Referring to fig. 2, an internal thread block i is fixed on the lower surface of the sliding seat 17, a transmission screw rod ii 18 is rotatably connected in the middle of the internal thread block i, a servo motor is fixed on the end portion, located on the transmission screw rod ii 18, of the lower surface of the workbench 1, and the end portion of an output shaft of the servo motor is fixed on the end portion of the transmission screw rod ii 18 through a coupler; the contact surface of the sliding seat 17 and the workbench 1 is provided with a ball; the stability of the movement of the sliding seat 17 is improved.
Referring to fig. 1-3, the movable clamping mechanism 11 includes a groove-shaped slide rail 111 embedded on the upper surface of the worktable 1 near the end, the opening of the groove-shaped slide rail 111 is upward, a rectangular hole is opened at the bottom of the groove-shaped slide rail 111, a boss slider 115 is connected in the sliding groove of the groove-shaped slide rail 111 in a sliding manner, a stopper 113 is fixed at the top end of the boss slider 115, a conical top block 112 is fixed at one end of the stopper 113 near the outer cylinder 10, the axial lead of the conical top block 112 coincides with the axial lead of the outer cylinder 10, and the moving direction of the boss slider 115 is parallel to the axial lead of the outer cylinder 10; the lower surface of the boss sliding block 115 is fixedly provided with a second internal thread block penetrating through the rectangular hole, the middle of the second internal thread block is rotatably connected with a first transmission screw hole 114, the two ends of the lower surface of the groove-shaped sliding rail 111, which are positioned at the first transmission screw hole 114, are respectively fixedly provided with a baffle block, and the first transmission screw hole 114 penetrates through one of the baffle blocks to be fixedly provided with a poking wheel; through the comprehensive arrangement of the toggle wheel and the conical top block 112, the outer cylinder 10 can be tightly fixed above the worktable 1, and the outer cylinder 10 can rotate around the axis, so that the optimum boring position is reserved.
Referring to fig. 6-8, the anti-deviation positioning device 5 includes an L-shaped support seat 4 fixed at one end of the worktable 1 near the side baffle 2, an electric push rod 51 is fixed at the top end of the L-shaped support seat 4 through a bolt, a resisting rod is fixed at the end of the extension rod of the electric push rod 51, three pull ropes 52 are fixed at the end of the resisting rod, a tapered expanding hole 202 is opened at an opening at one end of the triangular hole 201 near the electric push rod 51, positioning rods 53 are rotatably connected to three inner side walls of the triangular hole 201 and are centrally and symmetrically distributed with each other, the whole positioning rod 53 is in an L-shaped structure, a resisting block and a rope fixing hole are respectively reserved at two ends of the positioning rod 53, the rope fixing holes are respectively fixed with the ends of the three pull ropes 52, a shaft rod is arranged at the middle of each positioning rod 53, fixing blocks 56 are arranged at two ends of the shaft rod, three spring blocks 55 are fixed at the circumferential edge of the surface of the side baffle 2 near the tapered expanding hole 202, and a tension spring 54 is arranged between the spring stop 55 and the rod body of the corresponding positioning rod 53; through the setting of three locating lever 53 cooperation stay cord 52, can expand when fixed to urceolus 10, only need control electric putter 51's extension rod to stretch out, can let three locating lever 53 be close to the one end of urceolus 10 and stick up simultaneously, support the urceolus 10 tight then.
Referring to fig. 8, the aperture of the triangular hole 201 is smaller than the inner diameter of the outer cylinder 10, a rubber ball is arranged at one end of the positioning rod 53 close to the outer cylinder 10, and a strip-shaped through hole 3 matched with the position of the extension screw 19 is formed in the side baffle 2; the fixing effect of the positioning rod 53 is better, and the anti-skidding and anti-falling effects are achieved.
Before use, the outer barrel 10 to be perforated is fixed on the workbench 1, one end of the outer barrel 10 is sleeved with the three positioning rods 53, then the extension rods of the electric push rods 51 are controlled to extend out, so that one ends of the three positioning rods 53 close to the outer barrel 10 can be tilted at the same time, and then the outer barrel 10 is abutted tightly; then fixing the other end of the outer cylinder 10 at the end of the conical top block 112 of the movable clamping mechanism 11; when coaxial holes are required to be drilled on two workpieces which are far away from each other, the coaxial holes can be drilled only by extending the detection rod 6 into one hole after the hole is drilled, integrally moving the axial degree adjusting sliding chute 16 and the boring mechanism above the axial degree adjusting sliding chute along the strip-shaped sliding hole 12, and adjusting the eccentric distance between the boring cutter rod fixing block 22 and the boring cutter rotating rod 9 when hole expansion is required; when the boring cutter bar fixing block 22 is adjusted, the double-end screw 28 can be rotated only by screwing the adjusting rod I13, and at the moment, the boring cutter rotating rod 9 moves along the six-edge sliding hole 30 in the radial direction, namely, the rotating radius of a cutter head at the end part of the boring cutter rotating rod 9 is increased.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The coaxiality adjusting device of the outer barrel of the aircraft landing gear comprises a workbench (1), the whole upper surface of the workbench (1) is of a long strip-shaped structure, the upper surface of the workbench (1) is close to one end of the workbench (1) and is fixed with a side baffle (2), a triangular hole (201) matched with the inner diameter of the outer barrel (10) is formed in the middle of the side baffle (2), an anti-deviation positioning device (5) is arranged in the triangular hole (201), a movable clamping mechanism (11) is fixed at one end, far away from the side baffle (2), of the workbench (1), the outer barrel (10) is fixed between the movable clamping mechanism (11) and the anti-deviation positioning device (5), the extending direction of the outer barrel (10) is parallel to the length direction of the workbench (1), the coaxiality adjusting device is characterized in that a strip-shaped sliding hole (12) parallel to a long edge is formed in one side, close to the long edge, of the upper surface of the workbench (1), a sliding seat (17) is connected in the strip-shaped sliding hole (12) in a sliding way, an axial degree adjusting sliding groove (16) with an upward opening is fixed at the top end of the sliding seat (17), a bearing sliding block (24) is connected in the sliding groove of the axial degree adjusting sliding groove (16) in a sliding way, and the top end of the bearing slide block (24) is provided with a boring mechanism which comprises a bearing seat (23) fixed on the side surface of the bearing slide block (24) close to the top end, and the middle of the bearing seat (23) is rotationally connected with a horizontally arranged transmission rod (7), the boring cutter bar rotating rod structure is characterized in that a boring cutter bar fixing block (22) and a detection rod (6) are fixed at two ends of the transmission rod (7) respectively, a boring cutter rotating rod (9) is inserted into one end, away from the transmission rod (7), of the boring cutter bar fixing block (22), an extension screw rod (19) is inserted into one end, away from the transmission rod (7), of the detection rod (6), and a detection conical block (20) is sleeved on the outer wall of the extension screw rod (19).
2. The aircraft landing gear outer cylinder coaxiality adjusting device according to claim 1, wherein a hexagonal sliding hole (30) is formed in one end, close to the boring cutter rotating rod (9), of the boring cutter rod fixing block (22), a hexagonal prism head and a cutter head clamping groove matched with the hexagonal sliding hole (30) are reserved at two ends of the boring cutter rotating rod (9), a first screw hole (29) penetrating through an axis is formed in the outer wall of a hexagonal prism head, a channeling-preventing through hole (21) penetrating through the hexagonal sliding hole (30) is formed in the side face of the boring cutter rod fixing block (22), a double-threaded screw (28) is rotatably connected in the channeling-preventing through hole (21), the first screw hole (29) penetrates through the middle of the double-threaded screw (28), and a hexagonal sinking groove is formed in one end, far away from the outer cylinder (10), of the double-threaded screw (28).
3. The aircraft landing gear outer barrel coaxiality adjusting device according to claim 2, wherein rib strips parallel to the screw holes I (29) are reserved on the upper surface and the lower surface of the hexagonal column head, and clamping grooves matched with the rib strips are formed in the hexagonal sliding holes (30).
4. The aircraft landing gear outer cylinder coaxiality adjusting device according to claim 2, wherein a driven gear (8) is fixed at one end, away from the boring cutter bar fixing block (22), of the circumferential outer wall of the transmission rod (7), a driving motor (25) is fixed at one side, away from the bearing seat (23), of the upper surface of the bearing slider (24), a driving gear is fixed at the top end of an output shaft of the driving motor (25), an intermediate gear is arranged between the driving gear and the driven gear (8) on the side surface of the bearing slider (24), the intermediate gear is meshed with the driven gear (8) and the driving gear respectively, symmetrical conical roller bearings are embedded at two ends of the bearing seat (23) respectively, and the inner diameters of inner rings of the conical roller bearings are matched with the diameters of the transmission rod (7).
5. The aircraft landing gear outer cylinder coaxiality adjusting device according to claim 1, wherein the whole detecting rod (6) is of a tubular structure with threads formed inside, a detecting conical block (20) is screwed on the outer wall of the extending screw rod (19), and the maximum outer diameter of the detecting conical block (20) is larger than a target aperture.
6. The aircraft landing gear outer barrel coaxiality adjusting device according to claim 4, wherein the lower surface of the bearing slider (24) is provided with a mounting groove, an internal threaded pipe (27) is clamped in the mounting groove, the axial lead of the internal threaded pipe (27) is parallel to the extending direction of the axial degree adjusting chute (16), and the middle of the internal thread pipe (27) is rotationally connected with a self-locking screw rod (26), a positioning baffle is fixed at one end of the bottom of the axial degree adjusting chute (16) far away from the outer cylinder (10), and the circumferential outer wall of the self-locking screw (26) is positioned at both sides of the positioning baffle and is fixed with an annular retainer ring, one end of the self-locking screw (26) far away from the bearing slide block (24) is provided with a second adjusting rod (15), the hexagonal sinking groove is inserted with a first adjusting rod (13), and the top end of the axial degree adjusting sliding groove (16) is fixed with an outer cover (14), and the outer cover (14) is provided with an adjusting hole matched with the adjusting rod I (13) and the adjusting rod II (15).
7. The aircraft landing gear outer cylinder coaxiality adjusting device according to claim 1, is characterized in that a first internal thread block is fixed on the lower surface of the sliding seat (17), a second transmission screw (18) is rotatably connected to the middle of the first internal thread block, a servo motor is fixed on the end, located on the second transmission screw (18), of the lower surface of the workbench (1), and the end of an output shaft of the servo motor is fixed on the end of the second transmission screw (18) through a coupler; balls are arranged on the contact surfaces of the sliding seat (17) and the workbench (1); the stability of the movement of the sliding seat 17 is improved.
8. The aircraft landing gear outer barrel coaxiality adjusting device is characterized in that the movable clamping mechanism (11) comprises a groove-shaped sliding rail (111) which is embedded on the upper surface of the workbench (1) and close to the end, the opening of the groove-shaped sliding rail (111) faces upwards, a rectangular hole is formed in the bottom of the groove-shaped sliding rail (111), a boss sliding block (115) is connected in a sliding groove of the groove-shaped sliding rail (111) in a sliding mode, a stop block (113) is fixed to the top end of the boss sliding block (115), a conical top block (112) is fixed to one end, close to the outer barrel (10), of the stop block (113), the axial lead of the conical top block (112) coincides with the axial lead of the outer barrel (10), and the moving direction of the boss sliding block (115) is parallel to the axial lead of the outer barrel (10); the lower surface of the boss sliding block (115) is fixedly provided with a second internal thread block penetrating through the rectangular hole, the middle of the second internal thread block is rotatably connected with a first transmission screw hole (114), the two ends, located at the first transmission screw hole (114), of the lower surface of the groove-shaped sliding rail (111) are respectively fixedly provided with a baffle block, and the first transmission screw hole (114) penetrates through one of the baffle blocks to be fixedly provided with a poking wheel.
9. The aircraft landing gear outer cylinder coaxiality adjusting device according to claim 1, wherein the deviation-preventing positioning device (5) comprises an L-shaped support seat (4) fixed at one end of the workbench (1) close to the side baffle (2), an electric push rod (51) is fixed at the top end of the L-shaped support seat (4) through a bolt, a resisting rod is fixed at the end of an extension rod of the electric push rod (51), three pulling ropes (52) are fixed at the end of the resisting rod, a conical reaming hole (202) is formed at an opening of one end of a triangular hole (201) close to the electric push rod (51), positioning rods (53) which are mutually and symmetrically distributed are rotatably connected on the inner walls of three sides of the triangular hole (201), the whole positioning rod (53) is of an L-shaped structure, a resisting block and a rope fixing hole are reserved at two ends of the positioning rod (53), and the rope fixing holes are respectively fixed with the ends of the three pulling ropes (52), and the middle part of every locating lever (53) all is provided with the axostylus axostyle, and the both ends of axostylus axostyle all are provided with axostylus axostyle fixed block (56), the surface of side shield (2) is located the circumference edge that is close to toper reaming (202) and is fixed with three spring dog (55) that are central symmetry and distribute, and all is provided with extension spring (54) between the pole body of spring dog (55) and the locating lever (53) that corresponds.
10. The aircraft landing gear outer cylinder coaxiality adjusting device according to claim 9, wherein the diameter of the triangular hole (201) is smaller than the inner diameter of the outer cylinder (10), a rubber ball is arranged at one end, close to the outer cylinder (10), of the positioning rod (53), and a strip-shaped through hole (3) matched with the position of the extension screw (19) is formed in the side baffle (2).
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| CN202210890818.XA CN115041727B (en) | 2022-07-27 | 2022-07-27 | Coaxiality adjusting device for outer barrel of aircraft landing gear |
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| CN202210890818.XA CN115041727B (en) | 2022-07-27 | 2022-07-27 | Coaxiality adjusting device for outer barrel of aircraft landing gear |
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| CN115041727B CN115041727B (en) | 2023-02-28 |
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| CN116372617A (en) * | 2023-06-07 | 2023-07-04 | 辽宁华天航空科技股份有限公司 | Work fixture for reducing machining error of notch structure |
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| CN116871931A (en) * | 2023-09-07 | 2023-10-13 | 兴化市通舟船舶设备有限公司 | Gear drilling processing stop gear |
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