CN108817643B - Device and method for controlling course position of large airplane floor before welding - Google Patents
Device and method for controlling course position of large airplane floor before welding Download PDFInfo
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- CN108817643B CN108817643B CN201810678136.6A CN201810678136A CN108817643B CN 108817643 B CN108817643 B CN 108817643B CN 201810678136 A CN201810678136 A CN 201810678136A CN 108817643 B CN108817643 B CN 108817643B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/123—Controlling or monitoring the welding process
- B23K20/124—Controlling or monitoring the welding process at the beginning or at the end of a weld
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/126—Workpiece support, i.e. backing or clamping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Connection Of Plates (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The application discloses a device and a method for controlling the course position of a large airplane floor before welding, which mainly comprise a welding platform, a positioning assembly and a pressing assembly; the two ends of the airplane floor are provided with process ends, a push plate and a positioning angle plate of the positioning assembly are connected through an adjusting screw and a guide pin, the adjusting screw stretches and retracts to drive the push plate to push the process ends so as to adjust the position of the airplane floor in the sailing direction, a mooring annular hole in the airplane floor is accurately positioned through a positioning pin and a fine adjustment pin, the airplane floor with the determined position is compressed by a compressing assembly at the other end, and welding is carried out after compression.
Description
Technical Field
The application relates to course accurate positioning of a large aircraft cargo compartment floor in friction stir welding clamping.
Background
The aircraft cargo compartment floor mainly refers to a flat plate structure used for cargo transportation in a cabin, and is installed on the upper surface of a lower wall plate frame in an aircraft body, the frame position is about 300 mm and about 700mm, and for large cargo aircraft or transport aircraft and the like, the floor is often dozens of meters and twenty meters, the frame position can be dozens, connecting holes between the frame and the floor are called mooring ring holes, because the frames are installed on the lower wall plate part of the aircraft body, the mooring ring holes are respectively provided with initial holes in advance on the frame and the floor, the allowance from the initial holes to the final holes is very small, so many mooring ring holes on the floor are required to be accurately connected with the mooring ring holes on the lower wall plate frame, and the assembly positioning precision of the positions of the mooring ring holes of the frame and the position precision of the mooring ring holes on the floor are very important.
The large-scale airplane floor is generally divided into a plurality of large floors along the width direction under the influence of the structure and the processing capacity/process level of a cylinder section of an airplane body, each large floor is integrally machined or combined into two types in a partitioning mode, the combined floors are assembled and combined under a frame, integrally welded and the like, and the large-scale single floor integrally welded by friction stir welding is mainly explained in the application. Due to the welding characteristics of friction stir welding, when a single floor integrally welded by friction stir welding is welded, the expansion shrinkage is about 0-0.2mm, the floor is very uniform, the welded floor completely meets the requirement of the precision of the expansion, the influence is critically important to concentrate on the course position precision of floor blocks, the machining error of the blocks is often superposed due to the dislocation error of the two blocks, the course relative position precision of mooring annular holes on the combined floor blocks is difficult to guarantee, and the deformation caused by the traditional welding and positioning mode of the airplane floor causes quality problems and even product scrapping. Therefore, when friction stir welding is carried out, the positioning accuracy of the large airplane floor blocks in the course direction is very important and urgent, and the accurate positioning mode directly influences the positioning accuracy, so that the method is worthy of vigorous and intensive key research.
Disclosure of Invention
The method can be suitable for controlling the position precision of the mooring annular hole of the friction stir welding combined airplane floor in the heading direction.
In order to achieve the above purpose, the following technical scheme is adopted to realize the purpose:
a course position control device before welding of a large airplane floor comprises a welding platform, a positioning assembly and a pressing assembly, wherein two ends of the airplane floor to be welded are provided with process ends, the position precision of the outer end face of each process end and a mooring ring hole of an airplane reference frame is guaranteed to be within +/-0.1 mm, the positioning assembly comprises a positioning angle plate, a push plate, a guide pin, an adjusting screw rod, a positioning pin and a fine adjustment pin, the positioning angle plate is fixed at one end of the airplane floor process end on the welding platform, the push plate is arranged between the process ends and the positioning angle plate and is connected with the positioning angle plate through the adjusting screw rod and the guide pin, the length of the adjusting screw rod drives the push plate to push the process ends so as to adjust the position of the airplane floor in the sailing direction, the fine adjustment pin is a series of high-precision pins which are arranged step by step according to the diameter step of 0.1mm, and the maximum step difference, and the positioning pin and the fine adjustment pin are used for accurately positioning the mooring ring hole on the airplane floor, and the airplane floor with the determined position is welded after being compressed by a compressing assembly arranged at the other end of the process end.
A method for controlling the course position of a large airplane before floor welding comprises the following steps:
1, placing an airplane floor between a positioning component and a pressing component on a welding platform along the length direction, and performing primary positioning according to the end face position of a process end head;
2, selecting a frame position of the airplane floor close to the middle position as a reference frame position through the tightness of the pressing assembly and the extension of the positioning assembly, adjusting the course position of the airplane floor according to the position of a mooring annular hole of the reference frame on the welding platform, and inserting a positioning pin;
3 dividing the whole length of the airplane floor into a plurality of sections according to the slenderness ratio of about 50, selecting a frame position at the nearby position of each section as a positioning frame, observing the position deviation of the mooring annular holes of each positioning frame, and inserting fine adjusting pins with different diameters;
and 4, pulling out the positioning pin, adjusting the specific position of the airplane floor through the pressing assembly and the positioning assembly according to the maximum difference value of the diameters of the fine adjustment pin and the positioning pin, and gradually reducing the difference value until the difference value can not be reduced.
And 5, inserting all the inserted fine adjusting pins to fix the position of the airplane floor to complete positioning and pressing.
The method has the advantages that the basic principle of pin hole secondary positioning is utilized, the initial positioning and continuous adjustment of the positioning pin are realized, the control of the position precision of the mooring ring hole in the aircraft floor of the friction stir welding combination in the sailing direction is realized, and the method has universal applicability to the positioning of the aircraft floor of the friction stir welding.
The present application will be described in further detail with reference to the following drawings and examples.
Drawings
FIG. 1 is a diagram of a method for controlling the accuracy of the course position of a mooring ring hole of a friction stir welding airplane floor;
FIG. 2 is a schematic diagram of a method for controlling the accuracy of the course position of a mooring ring hole of a friction stir welding airplane floor;
FIG. 3 is a schematic view of a compaction and course alignment adjustment configuration;
fig. 4 is a schematic view of a compact structure.
The numbering in the figures illustrates: 1. welding a platform; 2. a positioning assembly; 3. a compression assembly; 4. an aircraft floor; 5. a process end; 6. a reference frame; 7. mooring a ring hole; 8. positioning the angle plate; 9. pushing the plate; 10. a guide pin; 11. adjusting the screw rod; 12. positioning pins; 13. fine adjustment and pin adjustment; 14. and (5) positioning the frame.
Detailed Description
Referring to fig. 1 to 4, a large airplane floor pre-welding course position control device mainly comprises a welding platform 1, a positioning assembly 2 and a pressing assembly 3; the method comprises the steps that process ends 5 are arranged at two ends of an airplane floor 4 to be welded, the position accuracy of the outer end face of each process end 5 and a mooring ring hole 7 of an airplane reference frame 6 is guaranteed to be within +/-0.1 mm, a positioning assembly 2 comprises a positioning angle plate 8, a push plate 9, a guide pin 10, an adjusting screw 11, a positioning pin 12 and a fine adjustment pin 13, the positioning angle plate 8 is used for fixing one end of a welding platform 1 at the process end 5 of the airplane floor 4, the push plate 9 is arranged between the process end 5 and the positioning angle plate 8 of the airplane floor 4 and is connected with the positioning angle plate 8 through the adjusting screw 11 and the guide pin 10, the adjusting screw 11 stretches and retracts to drive the push plate 9 to push the process end 5 so as to adjust the upward sailing position of the airplane floor 4, the fine adjustment pin 13 is a series of small positioning pins 12 arranged according to the step-by-step diameter step difference of 0.1mm, the positioning pins 12, the positioning pin 12 and the fine adjustment pin 13 are used for accurately positioning the mooring ring hole 7 on the airplane floor 4, the airplane floor 4 with the determined position is pressed by the pressing component 3 at the other end, and welding is carried out after pressing.
The method for controlling the course position before the welding of the airplane floor by using the device comprises the following steps:
a. placing the airplane floor 4 between the positioning component 2 and the pressing component 3 on the welding platform 1 along the length direction, and performing primary positioning according to the end face position of the process end 5;
b. selecting a frame position of the airplane floor 4 close to the middle position as a reference frame 6 through the tightness of the pressing assembly 3 and the extension of the positioning assembly 2, adjusting the course position of the airplane floor 4 according to the position of a mooring ring hole 7 of the reference frame 6 on the welding platform 1, and inserting a positioning pin 12;
c. dividing the whole length of the airplane floor 4 into a plurality of sections according to the slenderness ratio of about 50, selecting a frame position at the nearby position of each section as a positioning frame 14, observing the position deviation of a mooring annular hole 7 of each positioning frame 14, and inserting fine adjusting pins 13 with different diameters;
d. and pulling out the positioning pin 12, adjusting the specific position of the airplane floor 4 through the pressing assembly 3 and the positioning assembly 2 according to the maximum difference value of the diameters of the fine adjustment pin 13 and the positioning pin 12, and gradually reducing the difference value until the difference value can not be reduced.
e. All the inserted fine adjustment pins 13 are inserted, the positioning component 2 is fixed according to the position of the airplane floor 4 positioned by the fine adjustment pins 13, the pressing component 3 presses the airplane floor 4 towards the direction of the positioning component 2, the airplane floor 4 is fixed, and positioning and pressing are completed.
Claims (2)
1. A course position control device before welding of a large airplane floor comprises a welding platform, a positioning assembly and a pressing assembly, and is characterized in that process ends are arranged at two ends of the airplane floor to be welded, the position precision of the outer end face of each process end and a mooring ring hole of an airplane reference frame is guaranteed to be within +/-0.1 mm, the positioning assembly comprises a positioning angle plate, a push plate, a guide pin, an adjusting screw rod, a positioning pin and a fine adjustment pin, the positioning angle plate is fixed at one end of the airplane floor process end on the welding platform, the push plate is arranged between the process ends and the positioning angle plate and connected with the positioning angle plate through the adjusting screw rod and the guide pin, the length of the adjusting screw rod drives the push plate to push the process ends so as to adjust the position of the airplane floor in the sailing direction, the fine adjustment pin is a series of high-precision pins which are arranged step by step according to the diameter step of 0.1mm, and the maximum step of, and the positioning pin and the fine adjustment pin are used for accurately positioning the mooring ring hole on the airplane floor, and the airplane floor with the determined position is welded after being compressed by a compressing assembly arranged at the other end of the process end.
2. A method for controlling the course position of a large airplane before floor welding is characterized by comprising the following steps:
2-1, placing the airplane floor between a positioning component and a pressing component on a welding platform along the length direction, and performing primary positioning according to the end face position of a process end head;
2-2, selecting a frame position of the airplane floor close to the middle position as a reference frame position through the tightness of the pressing assembly and the extension of the positioning assembly, adjusting the course position of the airplane floor according to the position of a mooring annular hole of the reference frame on the welding platform, and inserting a positioning pin;
2-3, dividing the whole length of the airplane floor into a plurality of sections according to the slenderness ratio of 50, selecting a frame position at the nearby position of each section as a positioning frame, observing the position deviation of a mooring annular hole of each positioning frame, and inserting fine adjusting pins with different diameters;
2-4, pulling out the positioning pin, adjusting the specific position of the airplane floor through the pressing assembly and the positioning assembly according to the maximum difference value of the diameters of the fine adjustment pin and the positioning pin, and gradually reducing the difference value until the difference value can not be reduced;
2-5 inserting all the inserted fine adjusting pins to fix the position of the airplane floor and finish positioning and pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810678136.6A CN108817643B (en) | 2018-06-27 | 2018-06-27 | Device and method for controlling course position of large airplane floor before welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810678136.6A CN108817643B (en) | 2018-06-27 | 2018-06-27 | Device and method for controlling course position of large airplane floor before welding |
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| Publication Number | Publication Date |
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| CN108817643A CN108817643A (en) | 2018-11-16 |
| CN108817643B true CN108817643B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810678136.6A Active CN108817643B (en) | 2018-06-27 | 2018-06-27 | Device and method for controlling course position of large airplane floor before welding |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745338A (en) * | 2012-07-05 | 2012-10-24 | 浙江大学 | Digitalized assembly system for bodies of large planes |
| CN104925258A (en) * | 2015-06-02 | 2015-09-23 | 中航飞机股份有限公司西安飞机分公司 | Method for mounting mooring structure on composite-material floor of aeroplane |
| BR102015016336A2 (en) * | 2014-07-09 | 2016-06-14 | Boeing Co | method for performing an assembly operation, and apparatus |
| CN105905313A (en) * | 2016-04-01 | 2016-08-31 | 中航飞机股份有限公司西安飞机分公司 | Installation platform and installation method for overall floor of large transport aircraft |
| CN106002779A (en) * | 2016-07-01 | 2016-10-12 | 中航飞机股份有限公司西安飞机分公司 | Flexible positioning unit for airplane skin and positioning method of positioning unit |
| CN107117284A (en) * | 2016-02-25 | 2017-09-01 | 空中客车运营简化股份公司 | Integral floor and aircraft forward and this anterior packaging method with this floor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9737967B2 (en) * | 2014-12-17 | 2017-08-22 | Embraer S.A. | Universal magnetic table jig assemblies and methods for positioning a workpiece, especially for the fabrication of aircraft structural components |
-
2018
- 2018-06-27 CN CN201810678136.6A patent/CN108817643B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745338A (en) * | 2012-07-05 | 2012-10-24 | 浙江大学 | Digitalized assembly system for bodies of large planes |
| BR102015016336A2 (en) * | 2014-07-09 | 2016-06-14 | Boeing Co | method for performing an assembly operation, and apparatus |
| CN104925258A (en) * | 2015-06-02 | 2015-09-23 | 中航飞机股份有限公司西安飞机分公司 | Method for mounting mooring structure on composite-material floor of aeroplane |
| CN107117284A (en) * | 2016-02-25 | 2017-09-01 | 空中客车运营简化股份公司 | Integral floor and aircraft forward and this anterior packaging method with this floor |
| CN105905313A (en) * | 2016-04-01 | 2016-08-31 | 中航飞机股份有限公司西安飞机分公司 | Installation platform and installation method for overall floor of large transport aircraft |
| CN106002779A (en) * | 2016-07-01 | 2016-10-12 | 中航飞机股份有限公司西安飞机分公司 | Flexible positioning unit for airplane skin and positioning method of positioning unit |
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| CN108817643A (en) | 2018-11-16 |
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