CN114291288A - Production line system suitable for fuselage assembly - Google Patents
Production line system suitable for fuselage assembly Download PDFInfo
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- CN114291288A CN114291288A CN202210011295.7A CN202210011295A CN114291288A CN 114291288 A CN114291288 A CN 114291288A CN 202210011295 A CN202210011295 A CN 202210011295A CN 114291288 A CN114291288 A CN 114291288A
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Abstract
The invention relates to a production line system suitable for assembling a machine body, which comprises a pit with a track, wherein a measuring pre-installation station, an automatic hole-making station and a manual assembly station are sequentially arranged above the pit along the length direction of the pit; the manual assembly station comprises a second numerical control mobile platform arranged on the pit in a sliding mode, a third positioner assembly arranged on the second numerical control mobile platform and used for being movably connected with the model protection frame, and manual operation platforms arranged on two sides of the pit along the motion direction of the second numerical control mobile platform. The assembly stress of the machine body is reduced, the machine body is suitable for assembly of machine bodies of different types, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of airplane digital assembly, in particular to a production line system suitable for airplane body assembly.
Background
The aircraft product has complex structure, a large number of parts and complex coordination relationship, and the assembly of the aircraft body occupies a large amount of workload of aircraft manufacturing, so that the assembly quality, the manufacturing cost and the period of the aircraft are greatly influenced. With the introduction of a large number of advanced numerical control machines in China aviation factories in recent years, the numerical control machining capacity of airplane parts is greatly enhanced, the manufacturing period of the airplane parts is greatly shortened, and the machining quality is also greatly improved. However, the original traditional fixing frame method is still adopted in the assembly of parts and the assembly of the airplane body, the preparation period is long, the flexibility degree is low, the quality is unstable, and the method forms a strong contrast with the advanced numerical control processing method. With the improvement of the performance requirement of the airplane, the shortening of the delivery cycle, the more frequent updating and the like, higher requirements are put forward on the assembly technology of the airplane. The assembly technology of the airplane becomes a great obstacle for restricting the rapid development of the airplane in China. The research on the flexible assembly technology of the airframe at home and abroad obtains certain achievements, most of the manual connection pin holes for hoisting products are adopted, the assembly stress received by the products is large, and the assembly quality defect is easy to generate, for example, the patent application number (CN201010136782.3) is named as a digital assembly layout method for the airframe in a large airplane, a set of digital assembly system for the airframe is designed, a plurality of groups of posture adjusting components are arranged along the two sides and the bottom of the airframe in the system, the postures are adjusted according to a group of 4 positioners, a protective frame and the products are manually connected in a hoisting mode, and the processing of a main starting intersection point hole, an end face and a measuring hole is realized by arranging two processing devices of horizontal processing devices at the two sides of the airframe and an end face. The system product needs to be preassembled and positioned in a manual and mechanical connection mode through hoisting and shape-preserving frames, the preparation time is long, the assembly stress is easy to generate, meanwhile, the layout of the processing equipment is only suitable for processing and processing the main starting point hole, the end face and the measuring hole, and the application range is small.
Disclosure of Invention
(1) Technical problem to be solved
The invention provides a production line system suitable for fuselage assembly, which realizes that a shape-preserving frame has a plurality of freedom degrees of movement directions by adopting a ball head connection mode between a positioner assembly with a plurality of freedom degree movement functions and the shape-preserving frame, thereby being capable of adjusting the posture of the shape-preserving frame according to the butt joint condition of the front section of the fuselage and the rear section of the fuselage to adapt to the butt joint installation of the front section of the fuselage and the rear section of the fuselage, reducing the connection stress of the fuselage assembly, flexibly adapting to the stable support and positioning switching in the processes of different types of fuselage investment allocation positioning and automatic hole making, and improving the production efficiency of airplanes.
(2) Technical scheme
In a first aspect, an embodiment of the present invention provides a production line system suitable for fuselage assembly, where the fuselage includes a front fuselage section and a rear fuselage section to be assembled and connected, the production line system includes a pit with a track, a measurement pre-assembly station, an automatic hole-making station, and a manual assembly station are sequentially disposed above the pit along a length direction of the pit, the measurement pre-assembly station is configured to complete automatic docking of the front fuselage section and the rear fuselage section, the production line system includes a first numerically controlled mobile platform slidably disposed on the pit, the first numerically controlled mobile platform is capable of reciprocating between the measurement pre-assembly station and the automatic hole-making station, a shape-preserving rack disposed on the first numerically controlled mobile platform and configured to adjust a posture of the fuselage, and a positioner assembly having a plurality of degrees of freedom motions, one end of the shape-preserving rack is movably connected to the first positioner assembly, the other end is used for connecting the machine body; the automatic hole making station comprises a second positioner assembly used for connecting the shape-keeping frame and hole making equipment used for completing hole making of the machine body; the manual assembly station is used for completing manual connection and assembly of the front fuselage section and the rear fuselage section and comprises a second numerical control mobile platform, wherein the second numerical control mobile platform is slidably arranged on the pit, can reciprocate and is connected with the automatic hole making station and between the manual assembly station and the second numerical control mobile platform, and is arranged on the second numerical control mobile platform and is used for connecting a third positioner component of the protective frame and a manual operation platform arranged on two sides of the pit along the motion direction of the second numerical control mobile platform.
Further, first locator subassembly is including locating on a numerical control moving platform and being located fuselage anterior segment below first locator and second locator, and be located fuselage back end below third locator and fourth locator, the second locator is located first locator with between the third locator, the third locator is located the second locator with between the fourth locator, first locator and second locator are used for adjusting jointly the gesture of fuselage anterior segment, third locator and fourth locator are used for adjusting jointly the gesture of fuselage back end.
Further, the number of the first positioners is three, one of the first positioners is located on an axis of the first numerically-controlled mobile platform along the length direction of the pit, the other two of the first positioners are symmetrically arranged along the axis, and the three first positioners are arranged on the first numerically-controlled mobile platform in a triangular shape; the number of the second positioners is four, and the four second positioners are arranged on the first numerical control mobile platform in a rectangular shape; the number of the third positioners is four, and the four third positioners are arranged on the first numerical control mobile platform in a rectangular shape; the number of the fourth positioners is three, one of the fourth positioners is positioned on an axis of the first numerical control moving platform along the length direction of the pit, the other two of the fourth positioners are symmetrically arranged along the axis, and the three fourth positioners are arranged on the first numerical control moving platform in a triangular shape.
Furthermore, a fifth positioner used for installing the fuselage system component and a sixth positioner used for assisting in supporting the bottom profile of the rear section of the fuselage are further arranged on the first numerical control mobile platform along the axis, the fifth positioner is located between the sixth positioner and the first positioner, and the sixth positioner is located between the fifth positioner and the fourth positioner.
Furthermore, the measurement preassembly station is further provided with a first laser tracker used for measuring the posture adjusting position of the front section of the machine body and a second laser tracker used for measuring the posture adjusting position of the rear section of the machine body, the first laser tracker is located on one side, away from the second positioner, of the first positioner, the second laser tracker is located on one side, close to the automatic hole making station, and working platforms are symmetrically arranged on the measurement preassembly station along two sides of the pit in the length direction.
Further, the first laser tracker and the second laser tracker are respectively provided with two laser trackers, and the first laser tracker and the second laser tracker are respectively symmetrically arranged along two sides of the length direction of the pit.
Furthermore, a first gantry movement mechanism is arranged above the machine body on the automatic hole-making station, a second gantry movement mechanism is arranged below the machine body, the first gantry movement mechanism comprises a plurality of stand columns symmetrically arranged along the length direction of the pit, the stand columns are arranged on two sides of the pit in rows, first slide rails are arranged on the stand columns in each row, first trusses and third trusses are arranged on the two slide rails in a sliding mode, the second positioner assembly comprises an upper positioner arranged on the third truss and used for connecting the top of the shape-preserving frame, a lower positioner arranged in the pit and used for connecting the bottom of the shape-preserving frame, and a lateral positioner arranged on the stand columns and used for connecting the lateral parts of the shape-preserving frame and an auxiliary positioner used for supporting the machine body.
Further, follow on the automatic system hole station the length direction symmetry of pit is provided with two at least pillars and connects two of symmetrical arrangement the pillar just locates the second truss of pillar top, the second truss is located the below of first truss, two symmetrical arrangement the pillar is located two symmetrical arrangement between the stand, system hole equipment is including locating on the first truss and be used for right the upper portion puncher that the cover on fuselage upper portion made the hole and locate on the second truss and be used for right the cover of fuselage bottom carries out the bottom puncher that makes the hole.
Furthermore, the third positioner assembly comprises a seventh positioner and an eighth positioner which are arranged on the second numerically-controlled mobile platform and are used for connecting the model-keeping frame, and the eighth positioner is positioned on one side of the seventh positioner far away from the automatic hole-making station.
Further, the number of the seventh locators is four, four of the seventh locators are arranged on the second numerically controlled mobile platform in a rectangular shape, the number of the eighth locators is three, and three of the eighth locators are arranged on the second numerically controlled mobile platform in a triangular shape.
(3) Advantageous effects
In summary, the invention realizes the movement direction of the shape-preserving frame with multiple degrees of freedom by adopting the ball head connection mode between the positioner assembly with the motion function with multiple degrees of freedom (specifically six degrees of freedom) and the shape-preserving frame, so that the posture (namely the angle in a three-dimensional space) of the shape-preserving frame can be adjusted according to the butt joint condition of the front section of the fuselage and the rear section of the fuselage to adapt to the butt joint installation of the front section of the fuselage and the rear section of the fuselage, and the connection stress of the fuselage assembly is reduced.
According to the invention, three first positioners positioned below the front section of the machine body are arranged on the first numerical control mobile platform to form a group of supports, four second positioners positioned below the front section of the machine body are arranged to form a group of supports, and three fourth positioners and four third positioners positioned below the rear section of the machine body are arranged to form a group of supports, so that each group of positioners can realize six-degree-of-freedom directional movement to adjust the posture of the machine body, the high adaptability of the posture adjustment is ensured, and the requirements of different modified machine bodies on six-degree-of-freedom posture adjustment are met.
According to the invention, the first numerical control mobile platform capable of reciprocating between the measuring pre-installation station and the automatic hole making station is arranged on the measuring pre-installation station, and the second numerical control mobile platform capable of reciprocating between the automatic hole making station and the manual assembly station is arranged on the manual assembly station, so that all groups of positioners, the shape-preserving frames and the machine body are transported integrally through the numerical control mobile platform, the stress risk of split cooperative transportation is reduced, and meanwhile, the control is simple and reliable.
According to the automatic hole making machine, the lower positioner and the side positioner which move with three degrees of freedom are arranged on the automatic hole making station, and the side positioner can move in the vertical direction and the left-right direction to realize automatic avoidance so as to meet the requirement that the bottom hole punching machine does not move and interfere with the side positioner in the hole making process, so that the working efficiency is improved, and the hole making rate is increased.
According to the invention, the measuring pre-installation station, the automatic hole making station and the manual assembly station which work independently are sequentially arranged along the length direction of the pit, and the working stations are divided according to the production assembly function, so that independent work is not influenced, simultaneous assembly of multiple machine bodies is met, the utilization rate of equipment is improved, the use cost is reduced, and the yield is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall plan structure of the production line system of the present invention.
Fig. 2 is a schematic plan view of a pre-assembled station according to the present invention.
FIG. 3 is a schematic side view of a pre-assembled station according to the present invention.
Fig. 4 is a schematic plan view of an automated hole station according to the present invention.
Fig. 5 is a schematic side view of an automated hole station according to the present invention.
Fig. 6 is a schematic plan view of the manual assembly station of the present invention.
Fig. 7 is a side view of the manual assembly station of the present invention.
In the figure:
1-pit; 11-a first slide rail; 12-a second slide rail;
2-measuring a pre-installed station; 21-a first numerically controlled mobile platform; 22-a shape-keeping frame; 23-a first locator; 24-a second locator; 25-a third locator; 26-a fourth locator; 27-a fifth locator; 28-a sixth locator; 29-a working platform;
3-automatic hole making station; 31-upright post; 32-a first truss; 33-an upper locator; 34-a lower locator; 35-a lateral locator; 36-an auxiliary locator; 37-upper punch; 38-bottom punch; 311-a pillar; 312-a second truss; 321-a third truss;
4-manual assembly station; 41-a second numerically controlled mobile platform; 42-a manual operation platform; 43-a seventh locator; 44-an eighth locator;
5-a first laser tracker;
6-second laser tracker.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
FIG. 1 is a schematic diagram of the overall plane structure of the production line system of the present invention, as shown in FIGS. 1-7, the production line system suitable for assembling the fuselage comprises a pit 1 with a track, a measuring pre-assembly station 2, an automatic hole-making station 3 and a manual assembly station 4 are sequentially arranged above the pit 1 along the length direction of the pit 1, the fuselage comprises a front fuselage section and a rear fuselage section to be assembled and connected, the measuring pre-assembly station 2 is used for completing the automatic butt joint and simple assembly of the front fuselage section and the fuselage, and comprises a first numerically controlled mobile platform 21 slidably arranged on the pit 1, the first numerically controlled mobile platform 21 can reciprocate between the measuring pre-assembly station 2 and the automatic hole-making station 3, a shape-keeping frame 22 arranged on the first numerically controlled mobile platform 21 and used for adjusting the posture of the fuselage (comprising the front fuselage section and the rear fuselage section) and a positioner assembly with multiple degrees of freedom motion function, one end of the shape-preserving frame 22 is movably connected with the first positioner component, and the other end is used for connecting the machine body (comprising a machine body front section and a machine body rear section); the automatic hole-making station 3 comprises a second locator component used for connecting the shape-keeping frame 22 and hole-making equipment used for completing hole making of a machine body (comprising a machine body front section and a machine body rear section); the manual assembly station 4 is used for completing manual connection and assembly of the front section and the rear section of the fuselage, and comprises a second numerical control mobile platform 41 which is slidably arranged on the pit 1, wherein the second numerical control mobile platform 41 can reciprocate between the automatic hole making station 3 and the manual assembly station 4, a third positioner component which is arranged on the second numerical control mobile platform 41 and is used for connecting the model protection frame 22, and manual operation platforms 42 which are arranged on two sides of the pit 1 along the movement direction of the second numerical control mobile platform 41. The shape-preserving frame 22 can be connected with the first positioner component in a ball head connection mode, namely, the connecting end of the shape-preserving frame 22 and the first positioner component is set to be a first spherical structure, the shape-preserving frame 22 is also provided with a second spherical structure connected with the second positioner component, the first spherical structure is positioned on the inner side of the end part of the second spherical structure, namely, the first spherical structure is closer to the axis of the pit in the length direction than the second spherical structure, and in order to be suitable for butt joint of the machine body, the shape-preserving frame 22 is also divided into a shape-preserving frame front section for connecting the machine body front section and a shape-preserving frame rear section for connecting the machine body rear section. It should be noted here that the six-degree-of-freedom motion function means that one end of the positioner component connected with the shape-preserving frame is connected with a spherical joint on the shape-preserving frame in a matching manner by adopting a spherical structure, three linear motion translations are realized by synchronous translation of the positioner component, and the shape-preserving frame can realize three-degree-of-freedom rotary motion under the structure of the spherical joint by differential motion of the positioner component, so that the positioner component has the six-degree-of-freedom motion function, namely, the shape-preserving frame is adjusted in the six-degree-of-freedom motion direction to adjust the posture of the body.
The invention realizes the adjustment of the movement direction of six degrees of freedom of the shape-preserving frame by matching a ball head connection mode between the positioner component and the shape-preserving frame with the movement of an electric servo drive positioner so that the positioner component has the movement function of six degrees of freedom, thereby being capable of adjusting the posture (namely any angle in a three-dimensional space, XYZ axes and rotation angle in the space) of the shape-preserving frame according to the butt joint condition of the front section of the machine body and the rear section of the machine body to adapt to the butt joint installation of the front section of the machine body and the rear section of the machine body The automatic hole-making station and the manual assembly station realize independent work without influencing each other by dividing the work stations according to the production assembly function, meet the requirement of simultaneously assembling a plurality of machine bodies, improve the utilization rate of equipment, reduce the use cost and improve the yield; the numerical control mobile platform is used for integrally transporting each group of the positioner, the shape-preserving frame and the machine body, the stress risk of split cooperative transportation is reduced, and meanwhile, the control is simple and reliable.
As a preferred embodiment, as shown in fig. 2, the first positioner assembly includes a first positioner 23 and a second positioner 24 which are arranged on the first numerically controlled mobile platform 21 and located below the front section of the fuselage, and a third positioner 25 and a fourth positioner 26 which are located below the rear section of the fuselage, the second positioner 24 is located between the first positioner 23 and the third positioner 25, the third positioner 25 is located between the second positioner 24 and the fourth positioner 26, the first positioner 23 and the second positioner 24 are used for jointly adjusting the posture of the front section of the fuselage, the third positioner 25 and the fourth positioner 26 are used for jointly adjusting the posture of the rear section of the fuselage, the first positioners 23 have three, one of the first positioners 23 is located on the first numerically controlled mobile platform 21 along an axis along the length direction of the pit 1, and the other two first positioners 23 are symmetrically arranged along the axis, the three first positioners 23 are arranged on the first numerical control mobile platform 21 in a triangular shape; the number of the second positioners 24 is four, and the four second positioners 24 are arranged on the first numerical control moving platform 21 in a rectangular shape; the number of the third positioners 25 is four, and the four third positioners 25 are arranged on the first numerical control moving platform 21 in a rectangular shape; the number of the fourth locators 26 is three, one of the fourth locators 26 is located on an axis of the first numerically controlled moving platform 21 in the length direction of the pit 1, the other two fourth locators 26 are symmetrically arranged on two sides of the axis along the axis, and the three fourth locators 26 are arranged on the first numerically controlled moving platform 21 in a triangular shape. The three first positioners located below the front section of the machine body are arranged on the first numerical control mobile platform and are used as a group of supports, the four second positioners located below the front section of the machine body are used as a group of supports, the three fourth positioners and the four third positioners are arranged below the rear section of the machine body and are used as a group of supports, and the positioners in each group can realize six-freedom-degree direction movement to adjust the posture of the machine body, so that the high adaptability of the posture adjustment is guaranteed, and the requirements of different modified machine bodies on six-freedom-degree posture adjustment are met. Specifically, each of the first positioner, the second positioner, the third positioner and the fourth positioner is connected with the shape-preserving frame through a ball head, and the other end of each of the first positioner, the second positioner, the third positioner and the fourth positioner is in driving connection with a corresponding servo motor, so that each positioner has a motion function in six freedom directions.
As another preferred embodiment, as shown in fig. 2, a fifth locator 27 for mounting the fuselage system components and a sixth locator 28 for assisting in supporting the bottom profile of the rear fuselage section are further provided on the first numerically controlled mobile platform 21 along the axis, the sixth locator 28 does not participate in adjusting the posture of the rear fuselage section and only plays a role of assisting in supporting, the fifth locator 27 is located between the sixth locator 28 and the first locator 23, and the sixth locator 28 is located between the fifth locator 27 and the fourth locator 26. The fifth positioner and the sixth positioner are also in driving connection through corresponding lifting oil cylinders.
As other alternative embodiments.
Preferably, as shown in fig. 2, the measurement preassembly station 2 is further provided with a first laser tracker 5 for measuring the posture adjustment position of the front section of the fuselage and a second laser tracker 6 for measuring the posture adjustment position of the rear section of the fuselage, the first laser tracker 5 is located on one side of the first positioner 23 away from the second positioner 24, the second laser tracker 6 is located on one side close to the automatic hole-making station 3, the first laser tracker 5 and the second laser tracker 6 are both provided with two, and the first laser tracker 5 and the second laser tracker 6 are respectively and symmetrically arranged along the length direction of the pit 1. The front section and the rear section of the machine body are respectively measured by the two first laser trackers and the two second laser trackers, and the measurement results are fed back to a production line control system (not shown in the figure) to control the driving sources of the first positioner, the second positioner, the third positioner and the fourth positioner to drive the corresponding positioners to move, so that the posture adjustment meeting the requirements is completed.
Preferably, as shown in fig. 3, working platforms 29 are symmetrically arranged on the measurement preassembly station 2 along both sides of the length direction of the pit 1, and are used for completing preassembly of the fuselage.
Preferably, as shown in fig. 4 and 5, a first gantry movement mechanism is arranged above the machine body on the automatic hole making station 3 and a second gantry movement mechanism is arranged below the machine body, the first gantry movement mechanism comprises a plurality of columns 31 symmetrically arranged on both sides of the length direction of the pit 1, the plurality of columns 31 are arranged on both sides of the pit 1 in rows, each row of columns at least comprises two columns 31, each row of columns is provided with a first slide rail 11, the first slide rails 11 are arranged in parallel, the first slide rails 11 are slidably provided with a first truss 32 and a third truss 321, the second positioner assembly comprises an upper positioner 33 arranged on the third truss 321 and used for connecting the top of the shape-keeping frame 22, a lower positioner 34 arranged in the pit 1 and used for connecting the bottom of the shape-keeping frame 22, and a side positioner 35 arranged on the column 31 and used for connecting the side of the shape-keeping frame 22 and an auxiliary positioner 36 used for supporting the machine body, the side positioner 35 has a three-dimensional linear motion function (i.e. moving along XYZ axes) and is connected with the shape-preserving frame 22 by a ball head, the auxiliary positioner 36 has a three-dimensional linear motion function and is attached to the outer surface of the side of the body by a V-shaped pressing plate for supporting the body, the upper positioner 33 has a three-dimensional linear motion function and is connected with the shape-preserving frame 22 by a ball head, the lower positioner 34 has a three-dimensional linear motion function and is connected with the upper part of the front part of the shape-preserving frame 22 by a shape-adapting lap joint for supporting the front part of the shape-preserving frame 22, the second gantry motion mechanism comprises a plurality of support columns 311 symmetrically arranged along the length direction of the pit 1, the support columns 311 are arranged at two sides of the pit 1 in rows, each row of support columns at least comprises two support columns 311, the two rows of support columns are respectively provided with a second slide rail 12, the second slide rails 12 are arranged in parallel, and a second truss 312 is slidably arranged on the two slide rails 12, the second girder 312 is located below the first girder 31 and the third girder 321, and the two symmetrically arranged struts 311 are located between the two symmetrically arranged uprights 31 (i.e. where the struts 311 are closer to the pit 1 than the uprights 31), and the hole-making device comprises an upper hole-punch 37 provided on the first girder 31 for making a hole in the skin of the upper part of the fuselage, and a bottom hole-punch 38 provided on the second girder 312 for making a hole in the skin of the bottom of the fuselage. The upper punch 37 is disposed on the first truss by a five-axis linkage (i.e., five-axis linkage NC machine tool or rotary table), and the lower punch 38 is disposed on the second truss by a five-axis linkage (i.e., five-axis linkage NC machine tool or rotary table), which are common devices in the prior art and therefore will not be described herein.
As shown in fig. 6 and 7, the third positioner assembly is a manual positioner assembly, and includes a seventh positioner 43 and an eighth positioner 44, which are disposed on the second numerically-controlled moving platform 41 and are used for connecting the retaining frame 22, the eighth positioner 44 is located on a side of the seventh positioner 43 away from the automatic hole-making station 3, the seventh positioner 43 has four, four seventh positioners 43 are arranged on the second numerically-controlled moving platform 41 in a rectangular shape, the eighth positioner 44 has three, and three eighth positioners 44 are arranged on the second numerically-controlled moving platform 41 in a triangular shape. The seventh positioner 43 and the eighth positioner 44 both have a three-dimensional linear motion function (i.e. moving along the directions of the XYZ axes) and are connected with the shape-preserving frame by adopting a ball head.
The invention is further explained by combining the working principle of the invention, as shown in fig. 1-7, when the measuring pre-assembly station works, the first numerical control moving platform 21 is glidingly arranged on the track of the pit 1, three first locators 23 and three fourth locators 26 which are arranged in a triangular shape, four second locators 24 and four third locators 25 which are arranged in a rectangular shape are arranged on the first numerical control moving platform 2, and the shape-retaining frame 22 is hoisted to fall into the measuring station and is connected with the 14 locators through the ball heads. The hoisting of the fuselage section respectively falls into a supporting area and a sixth positioner 28 of a shape-preserving frame 22 connected with four second positioners 24 and third positioners 25 which are arranged in a rectangular shape, and the fuselage shape-preserving frame 22 rapidly and coarsely positions the front section of the fuselage through a bottom support block and a side press block. The sixth locator 28 supports the fuselage by adapting to the profile tray at the bottom of the rear section of the fuselage. The first positioner 23 with six freedom degree direction movement firstly drives the front end of the model-keeping frame to adjust to the hoisting gesture of the front end of the machine body, then the synchronous translation of the first positioner 23 is butted with the front end of the model-keeping frame 22 and the end surface of the front end of the machine body, then the second positioner 24 is linked together to drive the model-keeping frame 22 to adjust the gesture of the front end of the machine body, the fourth positioner 26 with six freedom degree direction movement firstly drives the rear end of the model-keeping frame to adjust to the hoisting gesture of the rear end of the machine body, then the synchronous translation of the fourth positioner 26 is butted with the rear end of the model-keeping frame 22 and the end surface of the rear end of the machine body, then the third positioner 25 is linked together to drive the model-keeping frame 22 to adjust the gesture of the rear end of the machine body with six freedom degrees, the gesture data of the machine body is measured by four laser trackers, the movement of each positioner in six freedom degree directions is controlled to meet the adjustment of the target gesture, the front section of the machine body is butted with the rear section of the machine body, then the fifth positioner 27 is driven by the jacking servo motor to ascend to a positioning position to complete the installation of the system components of the machine body, and the fifth positioner is descended to the positioning position to realize the separation after the installation is completed. And controlling the sixth positioner 28 to move downwards to be separated from the bottom of the machine body through the drive of the servo motor. Finally, the working platform 29 is used for completing manual pre-assembly of the machine body, the first numerical control moving platform 21 is controlled to drive all the positioners, the shape-preserving frame 22 and the pre-assembled and connected machine body to move to the automatic hole-making station 3 together, and then the side positioner 35 of the automatic hole-making station 3 is driven to be sequentially connected with the shape-preserving frame 22 along the length direction of the machine body, namely the length direction of the pit 1, through electric lead screw assemblies (namely X, Y, Z three directions) moving in three dimensional directions, wherein the connection form is a ball head connection structure, namely a second ball head structure connected with the shape-preserving frame 22. The auxiliary positioner 36 moves through an electric lead screw assembly (i.e. X, Y, Z three directions) with three dimensional directions to sequentially support the outer surface of the side part of the body along the length direction of the body, in a specific manner, a V-shaped pressing plate structure attached to the outer surface of the side part of the body is adopted on the auxiliary positioner 36. The upper positioner 33 moves to be connected with the upper part of the shape-preserving frame 22 through an electric lead screw assembly (namely X, Y, Z in three directions) with three-dimensional direction movement, and a ball head connecting structure is adopted. And then all the positioners on the first numerical control mobile platform 21 move towards one end far away from the machine body so as to be separated from the first ball head structure of the shape-keeping frame until the positioners move to a safety position, and the first numerical control mobile platform 21 drives all the positioners to return to the measurement preassembly station 2 for resetting. The lower positioner 34 is then moved into connection with the lower portion of the shape retaining frame 22 by a motorized lead screw assembly having three dimensional directions of movement (i.e., X, Y, Z in three directions). The upper punch 37 is provided on the first truss 32 by a five-axis numerically controlled machine tool at a position where the upper skin of the target body is moved to make a hole. The lower punching machine 38 moves to the positions of the lower part of the target machine body and the side skin through a five-axis linkage numerical control machine tool to perform hole making, in the hole making process of the lower part of the machine body in the bottom shielding area, the side positioner 35 connected with the bottom support of the shape protection frame 9 can move downwards along the Z axis, sequential avoiding of the shielding areas of the shape protection frame 9 is realized through movement in the Y direction, and hole making operation of the shielding areas of the lower punching machine 38 is realized. After the automatic hole making is completed, the second numerical control mobile platform 41 of the manual assembly station 4 drives the third positioner assembly arranged on the manual assembly station to integrally move to the automatic hole making station 3, the manual lead screw assemblies (namely X, Y, Z in three directions) with three dimensional directions of movement of the seventh positioner 43 and the eighth positioner 44 of the manual assembly station 4 move to be connected with the shape-preserving frame 22 by adopting ball heads, after the shape-preserving frame 22 is connected, the connection between the front section of the shape-preserving frame 22 and the machine body is released, and the lower positioner 34 of the automatic hole making station 3 moves in the Y direction under the drive of the electric lead screw in the Y direction to enable the front end of the shape-preserving frame 22 and the lower positioner 34 to move together to be separated from the front end of the machine body. And manually removing the shape-preserving frame supported by the seventh positioner 43 and the eighth positioner 44, and then controlling the second numerically-controlled movable working platform 41 to drive the seventh positioner 43, the eighth positioner 44, the shape-preserving frame 22 and the machine body arranged on the second numerically-controlled movable working platform to integrally move to the manual assembly station 4. The manual connection work is performed at the manual assembly station 4 by means of the working platform 42.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A production line system suitable for fuselage assembly is provided, wherein the fuselage comprises a fuselage front section and a fuselage rear section to be assembled and connected, the production line system comprises a pit (1) with a track, and a measuring pre-assembly station (2), an automatic hole-making station (3) and a manual assembly station (4) are sequentially arranged above the pit (1) along the length direction of the pit (1), and the production line system is characterized in that the measuring pre-assembly station (2) is used for completing the automatic butt joint of the fuselage front section and the fuselage rear section and comprises a first numerical control mobile platform (21) arranged on the pit (1) in a sliding manner, the first numerical control mobile platform (21) can reciprocate between the measuring pre-assembly station (2) and the automatic hole-making station (3), is arranged on the first numerical control mobile platform (21) and is used for adjusting a shape-keeping frame (22) of the fuselage and a positioner assembly with six-degree-of-freedom motion functions, one end of the shape-keeping frame (22) is movably connected with the first positioner component, and the other end of the shape-keeping frame is used for connecting the machine body;
the automatic hole making station (3) comprises a second locator component used for movably connecting the shape-keeping frame (22) and hole making equipment used for completing hole making of the machine body;
the manual assembly station (4) is used for completing manual connection assembly of the front fuselage section and the rear fuselage section, and comprises a second numerical control mobile platform (41) which is slidably arranged on the pit (1), wherein the second numerical control mobile platform (41) can reciprocate between the automatic hole making station (3) and the manual assembly station (4), and is arranged on the second numerical control mobile platform (41) and used for being connected with a third positioner component of the model protection frame (22), and is arranged on manual operation platforms (42) on two sides of the pit (1) along the motion direction of the second numerical control mobile platform (41).
2. The production line system for fuselage assembly as defined in claim 1, the first positioner component comprises a first positioner (23) and a second positioner (24) which are arranged on the first numerical control mobile platform (21) and are positioned below the front section of the machine body, and a third locator (25) and a fourth locator (26) located below the rear section of the fuselage, the second locator (24) is located between the first locator (23) and the third locator (25), the third locator (25) is located between the second locator (24) and the fourth locator (26), the first positioner (23) and the second positioner (24) are used for jointly adjusting the posture of the front section of the fuselage, the third positioner (25) and the fourth positioner (26) are used for jointly adjusting the posture of the rear section of the machine body.
3. The production line system suitable for fuselage assembly as defined in claim 2, wherein the first locators (23) are three, one of the first locators (23) is located on the first numerically controlled moving platform (21) on an axis along the length direction of the pit (1), the other two first locators (23) are symmetrically arranged along the axis, and the three first locators (23) are arranged on the first numerically controlled moving platform (21) in a triangular shape; the number of the second positioners (24) is four, and the four second positioners (24) are arranged on the first numerical control mobile platform (21) in a rectangular shape; the number of the third positioners (25) is four, and the four third positioners (25) are arranged on the first numerical control mobile platform (21) in a rectangular shape; the number of the fourth locators (26) is three, one of the fourth locators (26) is located on an axis of the first numerically-controlled moving platform (21) in the length direction of the pit (1), the other two of the fourth locators (26) are symmetrically arranged along the axis, and the three fourth locators (26) are arranged on the first numerically-controlled moving platform (21) in a triangular shape.
4. The production line system suitable for fuselage assembly according to claim 2, characterized in that a fifth locator (27) for mounting fuselage system components and a sixth locator (28) for assisting in supporting the bottom profile of the rear fuselage section are further provided on the first numerically controlled mobile platform (21) along the axis, the fifth locator (27) being located between the sixth locator (28) and the first locator (23), and the sixth locator (28) being located between the fifth locator (27) and the fourth locator (26).
5. The production line system suitable for fuselage assembly according to claim 2, characterized in that the measurement pre-assembly station (2) is further provided with a first laser tracker (5) for measuring the posture adjustment position of the front fuselage section and a second laser tracker (6) for measuring the posture adjustment position of the rear fuselage section, the first laser tracker (5) is located on one side of the first locator (23) far away from the second locator (24), the second laser tracker (6) is located on one side close to the automatic hole-making station (3), and the measurement pre-assembly station (2) is symmetrically provided with work platforms (29) along two sides of the length direction of the pit (1).
6. The production line system suitable for fuselage assembly according to claim 5, characterized in that the first laser tracker (5) and the second laser tracker (6) are two in number, and the first laser tracker (5) and the second laser tracker (6) are symmetrically arranged along two sides of the length direction of the pit (1).
7. The production line system suitable for fuselage assembly according to claim 1, wherein a first gantry movement mechanism is arranged above the fuselage and a second gantry movement mechanism is arranged below the fuselage on the automatic hole-making station (3), the first gantry movement mechanism comprises a plurality of upright columns (31) symmetrically arranged along the length direction of the pit (1), the upright columns (31) are arranged at two sides of the pit (1) in rows, first sliding rails (11) are arranged on the upright columns (31) in each row, a first truss (32) and a third truss (321) are arranged on the two sliding rails (11) in a sliding manner, the second positioner assembly comprises an upper positioner (33) arranged on the third truss (321) and used for connecting the top of the model-keeping frame (22), a lower positioner (34) arranged in the pit (1) and used for connecting the bottom of the model-keeping frame (22), and a lower positioner arranged on the upright columns (31) A side positioner (35) for connecting the side part of the shape-keeping frame (22) and an auxiliary positioner (36) for supporting the machine body.
8. Production line system for fuselage assembly according to claim 7, characterized in that two rows of struts (311) are symmetrically arranged along the length of the pit (1), each row of struts (311) comprising at least two struts (311), and a second truss (312) connecting the two symmetrically arranged pillars (311) and provided above the pillars (311), the second truss (312) is positioned below the first truss (32), the two symmetrically arranged struts (311) are positioned between the two symmetrically arranged uprights (31), the hole forming equipment comprises an upper hole forming machine (37) arranged on the first truss (31) and used for forming holes in the skin on the upper part of the fuselage, and a bottom hole forming machine (38) arranged on the second truss (312) and used for forming holes in the skin on the bottom of the fuselage.
9. The production line system suitable for fuselage assembly according to claim 1, characterized in that the third locator assembly comprises a seventh locator (43) and an eighth locator (44) provided on the second numerically controlled mobile platform (41) and used for connecting the holding fixture (22), the eighth locator (44) being located on the side of the seventh locator (43) remote from the automated hole-making station (3).
10. The production line system for fuselage assembly according to claim 9, characterized in that the seventh locators (43) have four, four of the seventh locators (43) are arranged on the second numerically controlled mobile platform (41) in a rectangular shape, the eighth locators (44) have three, and three of the eighth locators (44) are arranged on the second numerically controlled mobile platform (41) in a triangular shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210011295.7A CN114291288A (en) | 2022-01-05 | 2022-01-05 | Production line system suitable for fuselage assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210011295.7A CN114291288A (en) | 2022-01-05 | 2022-01-05 | Production line system suitable for fuselage assembly |
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| CN202210011295.7A Pending CN114291288A (en) | 2022-01-05 | 2022-01-05 | Production line system suitable for fuselage assembly |
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