CN108229615B - Digital assembly support system and method for aero-engine parts - Google Patents
Digital assembly support system and method for aero-engine parts Download PDFInfo
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Abstract
The invention discloses a digital assembly support system and a digital assembly support method for aeroengine parts, wherein the system comprises a central computer control unit, a part assembly process database, an assembly station laser auxiliary orientation device, an assembly station digital display platform and an approach part code scanning system; after reading the coding information of the approach parts identified by the code scanning system, the central computer control unit extracts corresponding part assembly data from a part assembly process database and respectively transmits the part assembly data to the laser auxiliary orientation system and the digital display platform; repeatedly playing assembly process rules and assembly process simulation animations of the parts to be assembled on the digital display platform to prompt a field engineer; the laser projector projects a pointing laser beam to the mounting position of the part to be assembled on the engine assembly; performing a field assembly task of the parts by a field engineer; the invention can rapidly and accurately position the installation position of the part and obviously improve the whole assembly efficiency of the aero-engine.
Description
Technical Field
The invention relates to the technical field of digital assembly of an aircraft engine, in particular to a digital assembly support system and method for aircraft engine parts.
Background
The aircraft engine is a core power component of an aircraft, and the manufacturing and assembling technical level of the aircraft engine is an important symbol of national science and technology strength, industrial strength and national defense strength. Modern large turbofan aircraft engines have high structural complexity and technical precision, and are usually formed by precisely assembling hundreds of thousands of various parts through complex process technical flows.
In general, large aircraft engines include various types of pipes, brackets, and other small and medium-sized parts. They are numerous in number, numerous in type, and different in form, and are difficult to identify quickly in an actual assembly line. At present, in the assembly production of large-scale aircraft engines in China, the assembly process of the parts is long in preparation time and low in assembly operation efficiency, the total assembly time of the parts accounts for a high proportion in the assembly cycle of the whole engine, and meanwhile, the problems of installation errors and installation consistency of small-scale parts exist. The method becomes an important factor for restricting the improvement of the production technology level and the quality of the aeroengine in China.
Disclosure of Invention
The invention provides a digital assembly support system and a digital assembly support method for parts of an aero-engine, aiming at solving the problems of assembly efficiency and assembly quality of various small parts in large-scale aero-engine assembly.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a digital assembly support system for aeroengine parts comprises a central computer control unit 1, a part assembly process database 2, an assembly station laser auxiliary orientation device 3, an assembly station digital display platform 4 and an approach part code scanning system 5;
after reading the entering-field part coding information identified by the entering-field part code scanning system 5, the central computer control unit 1 extracts corresponding part assembly data from the part assembly process database 2, wherein the part assembly data comprises a space installation coordinate position, an assembly process rule file and an assembly process simulation animation file, and the part assembly data and the assembly process simulation animation file are respectively transmitted to the assembly station laser auxiliary orientation system 3 and the assembly station digital display platform 4.
The part assembly process database 2 comprises two-dimensional codes of parts, space installation coordinate positions of the parts, assembly process procedure files of the parts and part assembly process simulation animation files; the two-dimensional code of the part is used as identification information of the part, the space installation coordinate position of the part is used for positioning the position of the engine part by the laser auxiliary orienting device 3 of the assembly station, and the assembly process rule file of the part and the assembly process simulation animation file of the part are used for playing by the digital display platform 4 of the assembly station, so as to prompt a field engineer about the assembly method and technical requirements of the part.
The assembly station laser auxiliary orientation device 3 consists of two laser projectors 6 with two-degree-of-freedom precise rotation control function, a projector mounting frame 7 and a measurement coordinate system calibration module 8, is used for establishing a space coordinate system of an aircraft engine assembly in the assembly station and projecting a pointing laser beam to a target assembly position of a part to be assembled on an engine; the laser projector 6 is installed on the projector installation frame 7, the projector installation frame 7 is symmetrically and fixedly installed in the middle of the left side and the right side of the tooling on the upper portion of the aircraft engine assembly station, and high position accuracy is kept between the projector installation frame 7 and the installation reference of the aircraft engine on the assembly station. The measurement coordinate system calibration module 8 comprises four small positioning modules which are respectively arranged on the projector mounting frame 7 and an installation reference of the aircraft engine on the assembly station, keep higher mutual position precision and are used for establishing a space measurement coordinate system based on the laser projector 6.
The assembly station digital display platform 4 is used for displaying an assembly process procedure file of a part to be assembled, playing an assembly process simulation animation of the part, and guiding and prompting a field engineer about an assembly method and technical requirements of the part in a visual mode.
The approach part code scanning system 5 is used for identifying two-dimensional code information of the approach part and sending the information to the central computer control unit 1.
The method for assembling the aero-engine parts based on the digital assembly support system of the aero-engine parts comprises the following specific steps:
step 1: establishing a three-dimensional space coordinate system in the engine assembly station by utilizing the positioning modules of the measurement coordinate system calibration module 8, accurately calibrating the position posture relation between the laser projector 6 and the engine assembly reference, and establishing a space measurement coordinate system taking the laser projector 6 as a core;
step 2: after a part to be assembled is input in an assembly site, firstly, scanning a two-dimensional code of the engine part, and inputting information into a central computer control unit 1;
and step 3: the central computer control unit 1 extracts the space installation coordinate position, the assembly process rule and the assembly process simulation animation file of the part to be assembled from the part assembly process database 2 according to the part two-dimension code information;
and 4, step 4: repeatedly playing the assembly process rules and the assembly process simulation animations of the parts to be assembled on the assembly station digital display platform 4, and prompting field engineers of the assembly method and technical requirements of the parts to be assembled; meanwhile, the laser projector 6 projects the directional laser beam to the mounting position of the assembly body to be assembled on the engine assembly body;
and 5: and the field engineer executes the field assembly task of the parts according to the prompted space installation coordinate position of the parts to be assembled, the assembly process procedure and the assembly process simulation animation.
The invention has the beneficial effects that: during the assembly process of various parts of an aeroengine, particularly a plurality of small parts, the installation position of the part can be quickly and accurately positioned through the cooperative work of virtual assembly simulation and laser-assisted orientation, and simultaneously, an engineer is assisted to complete the installation task of the part in a digital and visual mode according to the process requirements. The method can greatly reduce the workload of engine assembly engineers, reduce the probability of misloading and neglected loading, improve the installation consistency of similar parts and improve the efficiency of the whole engine assembly.
Drawings
Fig. 1 is a schematic configuration diagram of the assembly support system of the present invention.
FIG. 2 is a layout view of the laser-assisted orientation system of the assembly station of the present invention.
Fig. 3 is a schematic view of the structure of the laser projector of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the digital assembly support system for the aircraft engine component is a digital assembly support system for the aircraft engine component, and can be directly embedded into a typical aircraft engine assembly station. The system comprises a central computer control unit 1, a component assembly process database 2, an assembly station laser auxiliary orientation device 3, an assembly station digital display platform 4, an approach component code scanning system 5 and the like.
A digital assembly support system for aeroengine parts comprises a central computer control unit 1, a part assembly process database 2, an assembly station laser auxiliary orientation device 3, an assembly station digital display platform 4, an approach part code scanning system 5 and the like.
After reading the entering-field part coding information identified by the entering-field part code scanning system 5, the central computer control unit 1 extracts corresponding part assembly data from the part assembly process database 2, wherein the part assembly data comprises a space installation coordinate position, an assembly process rule file, an assembly process simulation animation file and the like, and the part assembly data and the assembly process simulation animation file are respectively transmitted to the laser auxiliary orienting device 3 and the assembly station digital display platform 4.
The part assembly process database 2 comprises two-dimensional codes of parts, space installation coordinate positions of the parts, assembly process procedure files of the parts and part assembly process simulation animation files. The two-dimensional code of the part is used as identification information of the part, the space installation coordinate position of the part is used for positioning the position of the engine part by the laser auxiliary orientation device 3 of the assembly station, the assembly process rule of the part and the assembly process simulation animation of the part are used for playing by the digital display platform 4 of the assembly station, and a field engineer is prompted about the assembly method and technical requirements of the part.
As shown in fig. 2 and 3, the laser auxiliary orientation device 3 of the assembly station is composed of two laser projectors 6 with two-degree-of-freedom precise rotation control function, a projector mounting frame 7 and a measurement coordinate system calibration module 8, and is used for establishing a spatial coordinate system of an aircraft engine assembly in the assembly station and projecting a pointing laser beam to a target assembly position of a component to be assembled on an engine. The laser projector 6 is installed on the projector installation frame 7, the projector installation frame 7 is symmetrically and fixedly installed in the middle of the left side and the right side of the tooling on the upper portion of the aircraft engine assembly station, and high position accuracy is kept between the projector installation frame 7 and the installation reference of the aircraft engine on the assembly station. The measurement coordinate system calibration module 8 comprises four small positioning modules which are respectively arranged on the projector mounting frame 7 and an installation reference of the aircraft engine on the assembly station, keep higher mutual position precision and are used for establishing a space measurement coordinate system based on the laser projector 6.
The assembly station digital display platform 4 is used for displaying an assembly process procedure file of a part to be assembled, playing an assembly process simulation animation of the part, and guiding and prompting a field engineer about an assembly method and technical requirements of the part in a visual mode.
The approach part code scanning system 5 is used for identifying two-dimensional code information of the approach part and sending the information to the central computer control unit 1.
The digital assembly support system based on the aero-engine parts comprises the following specific steps:
step 1: a three-dimensional space coordinate system in the engine assembly station is established by utilizing the positioning modules of the measurement coordinate system calibration module 8, the position posture relation between the laser projector 6 and the engine assembly reference is precisely calibrated, and a space measurement coordinate system taking the laser projector 6 as a core is established.
Step 2: after a part to be assembled is input in an assembly field, the two-dimensional code of the engine part is scanned first, and information is recorded into the central computer control unit 1.
And step 3: the central computer control unit 1 extracts the space installation coordinate position, the assembly process rule and the assembly process simulation animation file of the part to be assembled from the part assembly process database 2 according to the part two-dimension code information.
And 4, step 4: repeatedly playing the assembly process rules and the assembly process simulation animations of the engine parts on the digital display platform 4 of the assembly station; meanwhile, the laser projector 6 can project the pointing laser beam to the projector at the mounting position of the part to be assembled on the aircraft engine assembly body, the axial rotation angle and the pitch angle are adjusted according to the spatial mounting coordinate position data of the part, and the pointing laser is projected to the mounting position of the part to be assembled on the engine.
And 5: and the field engineer executes the field assembly task of the parts according to the prompted space installation coordinate position of the parts to be assembled, the assembly process procedures, the assembly process simulation animation and the like.
Claims (5)
1. A digital assembly support system for aircraft engine components, comprising:
the system comprises a central computer control unit (1), a component assembly process database (2), an assembly station laser auxiliary orientation device (3), an assembly station digital display platform (4) and an approach component code scanning system (5);
after reading the coding information of the approach parts identified by the approach part code scanning system (5), the central computer control unit (1) extracts corresponding part assembly data from the part assembly process database (2), wherein the part assembly data comprises a space installation coordinate position, an assembly process rule file and an assembly process simulation animation file, and the part assembly data and the assembly process simulation animation file are respectively transmitted to the laser auxiliary orienting device (3) of the assembly station and the digital display platform (4) of the assembly station;
the assembly station laser auxiliary orientation device (3) consists of two laser projectors (6) with two-degree-of-freedom precise rotation control function, a projector mounting frame (7) and a measurement coordinate system calibration module (8), and is used for establishing a space coordinate system of an aircraft engine assembly in the assembly station and projecting a pointing laser beam to a target assembly position of a part to be assembled on an engine; the laser projector (6) is arranged on a projector mounting frame (7), the projector mounting frame (7) is symmetrically and fixedly arranged in the middle positions of the left side and the right side of the upper tool of the aircraft engine assembly station, and the laser projector mounting frame and the aircraft engine are kept at high position accuracy with the installation reference of the aircraft engine on the assembly station; the measurement coordinate system calibration module (8) comprises four small positioning modules which are respectively arranged on the projector mounting frame (7) and an installation reference of the aircraft engine on an assembly station, keep higher mutual position precision and are used for establishing a space measurement coordinate system based on the laser projector (6).
2. The digital assembly support system for aircraft engine parts according to claim 1, wherein the parts assembly process database (2) includes two-dimensional codes of parts, spatial installation coordinate positions of parts, assembly process procedure files of parts, and parts assembly process simulation animation files; the two-dimensional code of the part is used as identification information of the part, the space installation coordinate position of the part is used for positioning the position of the engine part by the laser auxiliary orientation device (3) of the assembly station, and the assembly process rule file of the part and the assembly process simulation animation file of the part are used for playing by the digital display platform (4) of the assembly station, so that a field engineer is prompted about the assembly method and technical requirements of the part.
3. The digital assembly support system for aircraft engine parts according to claim 1, wherein the assembly station digital display platform (4) is used for displaying assembly process rule files of parts to be assembled and playing assembly process simulation animations of the parts, so as to guide and prompt field engineers about assembly methods and technical requirements of the parts in a visual manner.
4. The digital assembly support system for aircraft engine parts according to claim 1, wherein the approach part code scanning system (5) is configured to identify two-dimensional code information of the approach part and transmit the information to the central computer control unit (1).
5. A method for assembling aircraft engine parts based on the digital assembly support system for aircraft engine parts as claimed in any one of claims 1 to 4, comprising the following specific steps:
step 1: establishing a three-dimensional space coordinate system in an engine assembly station by utilizing positioning modules of a measurement coordinate system calibration module (8), accurately calibrating the position and posture relation between a laser projector (6) and an engine assembly reference, and establishing a space measurement coordinate system taking the laser projector (6) as a core;
step 2: after a part to be assembled is input in an assembly field, firstly, scanning a two-dimensional code of the engine part, and inputting information into a central computer control unit (1);
and step 3: the central computer control unit (1) extracts a space installation coordinate position, an assembly process procedure and an assembly process simulation animation file of the part to be assembled from the part assembly process database (2) according to the part two-dimension code information;
and 4, step 4: repeatedly playing an assembly process rule and an assembly process simulation animation of the part to be assembled on the assembly station digital display platform (4) to prompt a field engineer of an assembly method and technical requirements of the part to be assembled; meanwhile, the laser projector (6) projects a pointing laser beam to the mounting position of the part to be assembled on the engine assembly body;
and 5: and the field engineer executes the field assembly task of the parts according to the given space installation coordinate position of the parts to be assembled, the assembly process procedure and the assembly process simulation animation.
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