CN114313070A - Power assembly checking method, system, storage medium and equipment - Google Patents
Power assembly checking method, system, storage medium and equipment Download PDFInfo
- Publication number
- CN114313070A CN114313070A CN202111396669.3A CN202111396669A CN114313070A CN 114313070 A CN114313070 A CN 114313070A CN 202111396669 A CN202111396669 A CN 202111396669A CN 114313070 A CN114313070 A CN 114313070A
- Authority
- CN
- China
- Prior art keywords
- assembly
- cabin
- power assembly
- power
- assembly body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention discloses a method, a system, a storage medium and equipment for checking power assembly, wherein the method comprises the following steps: acquiring three-dimensional data of a cabin of a vehicle to be assembled, and generating a cabin assembly body corresponding to the cabin; acquiring three-dimensional data of a power assembly of a vehicle to be assembled, generating a power assembly body corresponding to the power assembly, and placing the power assembly body at an initial position outside an engine room assembly body; according to the hoisting angle, simulating an assembly process of assembling the power assembly body from the initial position to a preset position in the cabin assembly body; and acquiring an assembly gap between any part and the cabin assembly body in the simulation assembly process of the power assembly body, and judging whether the assembly gap meets the assembly requirement. The invention can solve the technical problem that in the process of putting a new vehicle type into production and assembling in the prior art, the power assembly cannot fall, so that one or more parts need to be redesigned to eliminate the problem that the power assembly cannot fall.
Description
Technical Field
The invention relates to the technical field of automobile assembly, in particular to a method, a system, a storage medium and equipment for checking power assembly.
Background
At present, most of trucks (light trucks and medium-heavy trucks) generally adopt a longitudinally-arranged power assembly, the longitudinally-arranged power assembly is hoisted to a chassis in the production process, the hoisting methods are basically consistent, namely when the power assembly is transmitted to a corresponding process, a hoisting device automatically hoists the power assembly to a previous upward elevation angle, and an operator can only control the power assembly to slowly fall into a chassis cabin in the Z direction and the X direction.
However, when a new vehicle model is put on line in a small lot, the power assembly is often interfered with peripheral components in the falling process, so that the power assembly cannot fall to a preset position in the cabin, and one or more components are required to be redesigned to solve the problem that the power assembly cannot fall, which directly affects the development and marketing of the new vehicle model.
Disclosure of Invention
Based on this, the invention aims to provide a method, a system, a storage medium and equipment for checking power assembly, and aims to solve the technical problem that in the process of putting a new vehicle model into production and assembling in the prior art, the power assembly cannot fall, so that one or more parts need to be redesigned to eliminate the problem that the power assembly cannot fall.
The invention provides a power assembly checking method in a first aspect, which comprises the following steps:
acquiring historical assembly data of a power assembly of a historical vehicle type assembled on a general assembly line, wherein the historical assembly data at least comprises a lifting angle of the power assembly before the power assembly is lifted to a chassis, and the lifting angle is an elevation angle between a power line of the power assembly and an XY plane;
acquiring three-dimensional data of a cabin of a vehicle to be assembled, and generating a cabin assembly body corresponding to the cabin according to the three-dimensional data of the cabin;
acquiring three-dimensional data of a power assembly of a vehicle to be assembled, generating a power assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly, and placing the power assembly body at an initial position outside the cabin assembly body in a preset program;
simulating an assembly process of assembling the power assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle;
acquiring an assembly gap between any part and the cabin assembly body in the simulated assembly process of the power assembly body, and judging whether the assembly gap meets the assembly requirement;
and if so, judging that the power assembly can be correctly assembled in the engine room.
According to one aspect of the above technical scheme, according to the hoisting angle, the step of simulating the assembling process of the power assembly body from the initial position to the preset position in the cabin assembly body specifically comprises:
generating a track line for assembling the power assembly body into the cabin assembly body according to the hoisting angle;
simulating the assembly of the powertrain assembly from an initial position to a predetermined position within the nacelle assembly along the trajectory.
According to one aspect of the above technical solution, the step of simulating the assembly of the powertrain assembly from the initial position to the preset position in the nacelle assembly along the trajectory line specifically includes:
controlling the power assembly body to descend from an initial position along a Z axis and move towards the interior of the cabin assembly body along an X axis until a gearbox suspension fastener of the power assembly body corresponds to a connecting hole of a first frame cross beam;
and controlling the power assembly body to rotate downwards along the Y axis until the engine suspension of the power assembly body is attached to the top surface of the second frame cross beam.
According to an aspect of the foregoing technical solution, before the step of simulating an assembly process of the powertrain assembly body from an initial position to a preset position in the nacelle assembly body, the method further includes:
determining a first boundary frame of the power assembly according to the three-dimensional data of the power assembly, and setting a first color corresponding to the first boundary frame;
and determining a second boundary frame of the cabin assembly according to the three-dimensional data of the cabin assembly, and setting a second color corresponding to the second boundary frame, wherein the first color and the second color have visual difference.
According to one aspect of the above technical solution, the step of obtaining an assembly gap between any part and the nacelle assembly body in the simulated assembly process of the powertrain assembly body specifically includes:
judging whether two ends of the first boundary frame are intersected with two ends of the second boundary frame or not and forming a third color in the process of controlling the power assembly body to move along the Z axis and the X axis;
and judging whether two sides of the first boundary frame are intersected with two sides of the second boundary frame or not and forming a third color in the process of controlling the power assembly to rotate downwards along the Y axis.
According to an aspect of the foregoing technical solution, the method further includes:
marking the interference range with the third color to obtain interference information of the power assembly body and the cabin assembly body;
and acquiring a first interference range related to the power assembly in the interference range and acquiring a second interference range related to the cabin assembly in the interference range according to the interference information.
According to an aspect of the foregoing technical solution, the method further includes:
simulating and removing a first interference range of the power assembly body, calculating a first structural characteristic of the power assembly, and judging whether the function of the power assembly is damaged or not after the first interference range is removed according to the first structural characteristic of the power assembly;
and simulating to remove a second interference range of the cabin assembly body, calculating a second structural characteristic of the cabin, and judging whether the function of the cabin is damaged after the second interference range is removed according to the second structural characteristic of the cabin.
A second aspect of the present invention provides a powertrain assembly checking system, comprising:
the system comprises a first data acquisition module, a second data acquisition module and a control module, wherein the first data acquisition module is used for acquiring historical assembly data of assembling a power assembly of a historical vehicle type on a general assembly line, the historical assembly data at least comprises a lifting angle of the power assembly before the power assembly is lifted to a chassis, and the lifting angle is an elevation angle between a power line of the power assembly and an XY plane;
the second data acquisition module is used for acquiring three-dimensional data of a cabin of a vehicle to be assembled and generating a cabin assembly body corresponding to the cabin according to the three-dimensional data of the cabin;
the third data acquisition module is used for acquiring three-dimensional data of a power assembly of a vehicle to be assembled, generating a power assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly, and placing the power assembly body at an initial position outside the cabin assembly body in a preset program;
the simulation assembly module is used for simulating an assembly process of the power assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle;
the assembly judgment module is used for acquiring an assembly gap between any part and the cabin assembly body in the simulated assembly process of the power assembly body and judging whether the assembly gap meets the assembly requirement;
and the result output module is used for judging that the power assembly can be correctly assembled in the engine room when the assembly clearance meets the assembly requirement.
A third aspect of the present invention provides a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method of the above-mentioned solution.
A third aspect of the present invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method described in the above technical solution when executing the program.
Compared with the prior art, the method, the system, the storage medium and the equipment for assembling and checking the power assembly have the advantages that: the power assembly body of the power assembly and the cabin assembly body of the cabin are generated, the power assembly body is assembled from an initial position to a preset position in the cabin assembly body according to historical assembly data, an assembly gap between the power assembly body and any position of the cabin assembly body in the simulation assembly process is obtained, whether the assembly gap meets the assembly requirement is judged, only when the assembly gap meets the assembly requirement, the power assembly body can be assembled into the cabin assembly body, namely, the power assembly of a vehicle to be assembled can be correctly assembled into the cabin. In the embodiment, the assembly of the power assembly is checked through simulated assembly, and whether the power assembly and/or the engine room needs to be modified or not is judged according to the checking result, so that the assembly failure during the later-stage mass production of the new vehicle type is avoided.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a powertrain assembly verification method in a first embodiment of the present invention;
FIG. 2 is a block diagram showing a powertrain mounting checking system in a third embodiment of the present invention;
the following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example one
Referring to fig. 1, a first embodiment of the present invention provides a method for checking a powertrain assembly, the method including steps S10-S60:
step S10, acquiring historical assembly data of the power assembly of a historical vehicle type assembled on a general assembly line, wherein the historical assembly data at least comprises a lifting angle of the power assembly before the power assembly is lifted to a chassis;
it should be noted that, the historical assembly data of the power assembly of the historical vehicle type assembled on the assembly line is the assembly data of the power assembly of the existing vehicle in the assembly link, wherein the assembly data includes a hoisting angle before the power assembly is hoisted to the chassis, the hoisting angle is an elevation angle between a power line (i.e. an extension line of a power output shaft) of the power assembly and an XY plane, and the power assembly is assembled in the cabin of the vehicle by adopting the hoisting angle, so that the assembly interference can be effectively avoided, and the assembly efficiency is improved. The hoisting angle is defined by a general assembly line, and is a correct angle, the hoisting angle preset by each manufacturer has a certain difference, but the difference is not too large.
Step S20, acquiring three-dimensional data of a cabin of a vehicle to be assembled, and generating a cabin assembly body corresponding to the cabin according to the three-dimensional data of the cabin;
for example, an optical scanning device is used for scanning the cabin of a vehicle to be assembled, namely a small-batch trial production vehicle of a new vehicle type, so as to obtain three-dimensional data of the cabin of the vehicle to be assembled, and thus a cabin assembly body corresponding to the cabin is generated according to the three-dimensional data of the cabin.
The three-dimensional data of the cabin comprises contour data and dimension data of all assembly parts in the cabin, and a cabin assembly body corresponding to the cabin is generated according to the contour data and the dimension data of all the assembly parts in the cabin. And various assembly parts in the engine room, such as a water tank frame, a heat fan, a frame cross beam and the like.
Step S30, acquiring three-dimensional data of a power assembly of a vehicle to be assembled, generating a power assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly, and placing the power assembly body at an initial position outside the cabin assembly body in a preset program;
similarly, the optical scanning device scans the power assembly of the vehicle to be assembled, namely a small-batch trial production vehicle of a new vehicle type, so as to obtain the three-dimensional data of the power assembly of the vehicle to be assembled, and generate the cabin assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly.
The power assembly comprises an engine, a gearbox, a component for connecting the engine and the gearbox, and a suspension device for the engine and the gearbox.
After the cabin assembly body and the power assembly body are obtained, before simulation assembly, the power assembly body is guided into an operation interface of the cabin assembly body, the power assembly is dragged to a position above the cabin assembly body according to a preset hoisting angle, and the simulation assembly of the power assembly and the cabin assembly body is waited, then the method goes to step S40.
Step S40, simulating an assembly process of the power assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle;
based on the outlines of the power assembly and the engine room, a hoisting angle of the power assembly before the power assembly is hoisted to the chassis is preset, and according to the hoisting angle, assembly overload of the power assembly body from an initial position to a preset position in the engine room assembly body is simulated.
In the assembling process of the power assembly body, the descending and the translation of the power assembly body are included, and the power assembly body rotates, so that the power assembly body is assembled to the preset position in the cabin assembling body.
Step S50, obtaining an assembly gap between any part and the cabin assembly body in the simulated assembly process of the power assembly body, and judging whether the assembly gap meets the assembly requirement;
as those skilled in the art will readily understand, in the power assembly of the present automobile, at least three cylinders and four cylinders are provided in the engine, and the power and torque requirements of the large-sized vehicle such as truck are greater, so that the truck is usually of six-cylinder type, which results in a large engine volume of the truck. The power assembly is arranged longitudinally, an input shaft of the gearbox is in transmission connection with an output shaft of the engine, the gearbox extends along the axis of the output shaft of the engine, and the more gears the gearbox has, the more the volume of the gearbox is correspondingly increased. The length of the longitudinal arrangement of the drive train is therefore relatively long, the required longitudinal space of the nacelle is enormous and it is also more difficult to assemble.
After the power assembly is assembled, the engine is completely positioned in the engine room, only part of the gearbox is positioned in the engine room, the rest of the gearbox extends into the chassis and is connected with a transmission shaft of the rear wheel, namely, the end of the gearbox extends into the engine room and further into the chassis, and then the end of the engine is arranged in the engine room.
By way of example and not limitation, when the gearbox passes through the nacelle and extends into the chassis, due to the large size of the engine, it is empirically known that the engine is prone to contact the water box frame at the front of the nacelle, resulting in an incorrect assembly of the powertrain into the nacelle. Therefore, when the power assembly body and the cabin assembly body are assembled in a simulation mode, an assembly gap between an engine model of the power assembly body and a water tank frame model of the cabin assembly body is required to be obtained, so that whether the engine model of the power assembly body interferes with the water tank frame model of the cabin assembly body or not is judged, and the probability of interference between the engine model and the water tank frame model in the next step when the power assembly body is assembled along a track is judged.
In the simulation assembly process, only when any part of the power assembly body cannot interfere with any part of the cabin assembly body, the power assembly body can be correctly assembled in the cabin assembly body, and only then the assembly requirement is met. When the fitting clearance satisfies the fitting requirement, the method proceeds to step S60.
And step S60, judging that the power assembly can be correctly assembled in the engine room.
In the simulation assembly process, when the power assembly body can be correctly assembled in the cabin assembly body, the power assembly can be correctly assembled in the cabin, namely the design of the power assembly and the cabin does not need to be modified, and the mass production can be realized.
On the contrary, in the simulation assembly process, when the power assembly cannot be correctly assembled in the cabin assembly body, it is indicated that the power assembly cannot be correctly assembled in the cabin, that is, the design of the power assembly and/or the cabin needs to be modified, and the vehicle type can be produced in batch only after the modification is carried out through the simulation assembly.
Compared with the prior art, the method for assembling and checking the power assembly has the advantages that: the power assembly body of the power assembly and the cabin assembly body of the cabin are generated, the power assembly body is assembled from an initial position to a preset position in the cabin assembly body according to historical assembly data, an assembly gap between the power assembly body and any position of the cabin assembly body in the simulation assembly process is obtained, whether the assembly gap meets the assembly requirement is judged, only when the assembly gap meets the assembly requirement, the power assembly body can be assembled into the cabin assembly body, namely, the power assembly of a vehicle to be assembled can be correctly assembled into the cabin. In the embodiment, the assembly of the power assembly is checked through simulated assembly, and whether the power assembly and/or the engine room needs to be modified or not is judged according to the checking result, so that the assembly failure during the later-stage mass production of the new vehicle type is avoided.
Example two
A second embodiment of the present invention provides a method for checking assembly of a powertrain, in the method for checking assembly of a powertrain shown in this embodiment:
according to the hoisting angle, simulating the step of assembling the power assembly body from the initial position to the preset position in the cabin assembly body, and specifically comprising the following steps of:
generating a track line for assembling the power assembly body into the cabin assembly body according to the hoisting angle;
simulating the assembly of the powertrain assembly from an initial position to a predetermined position within the nacelle assembly along the trajectory.
In this embodiment, the step of simulating the assembly of the powertrain assembly from the initial position to the preset position in the nacelle assembly along the trajectory line specifically includes:
controlling the power assembly body to descend from an initial position along a Z axis and move towards the interior of the cabin assembly body along an X axis until a gearbox suspension fastener of the power assembly body corresponds to a connecting hole of a first frame cross beam;
and controlling the power assembly body to rotate downwards along the Y axis until the engine suspension of the power assembly body is attached to the top surface of the second frame cross beam.
In this embodiment, before the step of simulating an assembly process of the powertrain assembly from an initial position to a predetermined position in the nacelle assembly, the method further comprises:
determining a first boundary frame of the power assembly according to the three-dimensional data of the power assembly, and setting a first color corresponding to the first boundary frame;
and determining a second boundary frame of the cabin assembly according to the three-dimensional data of the cabin assembly, and setting a second color corresponding to the second boundary frame, wherein the first color and the second color have visual difference.
The step of obtaining the assembly clearance between any part and the cabin assembly body in the simulated assembly process of the power assembly body specifically comprises the following steps:
judging whether two ends of the first boundary frame are intersected with two ends of the second boundary frame or not and forming a third color in the process of controlling the power assembly body to move along the Z axis and the X axis;
and judging whether two sides of the first boundary frame are intersected with two sides of the second boundary frame or not and forming a third color in the process of controlling the power assembly to rotate downwards along the Y axis.
Further, when the power assembly body and the cabin assembly body have a third color in the simulated assembly process, the method further comprises the following steps:
marking the interference range with the third color to obtain interference information of the power assembly body and the cabin assembly body;
and acquiring a first interference range related to the power assembly in the interference range and acquiring a second interference range related to the cabin assembly in the interference range according to the interference information.
Further, simulating to remove a first interference range of the power assembly, calculating a first structural characteristic of the power assembly, and judging whether the function of the power assembly is damaged after the first interference range is removed according to the first structural characteristic of the power assembly;
and simulating to remove a second interference range of the cabin assembly body, calculating a second structural characteristic of the cabin, and judging whether the function of the cabin is damaged after the second interference range is removed according to the second structural characteristic of the cabin.
By way of example and not limitation, after the second interference range of the nacelle assembly is removed in a simulation mode, the structural characteristics of the nacelle are calculated again to obtain second structural characteristics of the nacelle, and whether the function of the nacelle is damaged or not after the second interference range of the nacelle assembly is removed is judged according to the second structural characteristics. For example, a part of the boundary beam of the water tank frame in the engine room is removed, so that the boundary beam of the water tank frame is thinner, whether the thinned boundary beam influences the normal use and the service life of the water tank frame is judged, and when the thinned boundary beam does not influence the normal use of the water tank frame is judged, the boundary beam of the water tank frame can be partially reduced in the actual application, so that the power assembly is assembled in the engine room conveniently.
In the embodiment, in the simulation assembly process of the power assembly body, the first interference range of the power assembly body and the second interference range of the engine room assembly body are calculated, whether the use is influenced after the interference range is removed is judged, and a basis is provided for the arrangement of the power assembly and the engine room, so that the progress of the development of a new vehicle type is accelerated.
Compared with the prior art, the method for assembling and checking the power assembly has the advantages that: the power assembly body of the power assembly and the cabin assembly body of the cabin are generated, the power assembly body is assembled from an initial position to a preset position in the cabin assembly body according to historical assembly data, an assembly gap between the power assembly body and any position of the cabin assembly body in the simulation assembly process is obtained, whether the assembly gap meets the assembly requirement is judged, only when the assembly gap meets the assembly requirement, the power assembly body can be assembled into the cabin assembly body, namely, the power assembly of a vehicle to be assembled can be correctly assembled into the cabin. In the embodiment, the assembly of the power assembly is checked through simulated assembly, and whether the power assembly and/or the engine room needs to be modified or not is judged according to the checking result, so that the assembly failure during the later-stage mass production of the new vehicle type is avoided.
EXAMPLE III
Referring to fig. 2, a third embodiment of the present invention provides a powertrain assembly checking system, including:
the first obtaining module 10 is used for obtaining historical assembly data of a power assembly of a historical vehicle type assembled on a general assembly line, wherein the historical assembly data at least comprises a lifting angle of the power assembly before the power assembly is lifted to a chassis;
it should be noted that, the historical assembly data of the power assembly of the historical vehicle type assembled on the assembly line is the assembly data of the power assembly of the existing vehicle in the assembly link, wherein the assembly data includes a hoisting angle before the power assembly is hoisted to the chassis, the hoisting angle is an elevation angle between a power line (i.e. an extension line of a power output shaft) of the power assembly and an XY plane, and the power assembly is assembled in the cabin of the vehicle by adopting the hoisting angle, so that the assembly interference can be effectively avoided, and the assembly efficiency is improved. The hoisting angle is defined by a general assembly line, and is a correct angle, the hoisting angle preset by each manufacturer has a certain difference, but the difference is not too large.
The second obtaining module 20 is configured to obtain three-dimensional data of a cabin of a vehicle to be assembled, and generate a cabin assembly body corresponding to the cabin according to the three-dimensional data of the cabin;
for example, an optical scanning device is used for scanning the cabin of a vehicle to be assembled, namely a small-batch trial production vehicle of a new vehicle type, so as to obtain three-dimensional data of the cabin of the vehicle to be assembled, and thus a cabin assembly body corresponding to the cabin is generated according to the three-dimensional data of the cabin.
The three-dimensional data of the cabin comprises contour data and dimension data of all assembly parts in the cabin, and a cabin assembly body corresponding to the cabin is generated according to the contour data and the dimension data of all the assembly parts in the cabin. And various assembly parts in the engine room, such as a water tank frame, a heat fan, a frame cross beam and the like.
A third obtaining module 30, configured to obtain three-dimensional data of a powertrain of a vehicle to be assembled, generate a powertrain assembly body corresponding to the powertrain according to the three-dimensional data of the powertrain, and place the powertrain assembly body at an initial position outside the cabin assembly body in a preset program;
similarly, the optical scanning device scans the power assembly of the vehicle to be assembled, namely a small-batch trial production vehicle of a new vehicle type, so as to obtain the three-dimensional data of the power assembly of the vehicle to be assembled, and generate the cabin assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly.
The power assembly comprises an engine, a gearbox, a component for connecting the engine and the gearbox, and a suspension device for the engine and the gearbox.
After the cabin assembly body and the power assembly body are obtained, before simulation assembly, the power assembly body is guided into an operation interface of the cabin assembly body, the power assembly is dragged to a position above the cabin assembly body according to a preset hoisting angle, and the simulation assembly of the power assembly and the cabin assembly body is waited, then the method goes to step S40.
The simulation assembly module 40 is used for simulating an assembly process of the power assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle;
based on the outlines of the power assembly and the engine room, a hoisting angle of the power assembly before the power assembly is hoisted to the chassis is preset, and according to the hoisting angle, assembly overload of the power assembly body from an initial position to a preset position in the engine room assembly body is simulated.
In the assembling process of the power assembly body, the descending and the translation of the power assembly body are included, and the power assembly body rotates, so that the power assembly body is assembled to the preset position in the cabin assembling body.
The assembly judgment module 50 is used for acquiring an assembly gap between any part and the cabin assembly body in the simulated assembly process of the power assembly body and judging whether the assembly gap meets the assembly requirement;
as will be readily understood by those skilled in the art, in the power assembly of the present stage automobile, the engine is at least provided with three cylinders and four cylinders, and the power and torque requirements of the large-sized vehicle such as truck are larger, so that the truck is usually of six-cylinder type, which results in the engine of the truck being huge in volume. The power assemblies are arranged longitudinally, the input shaft of the gearbox is in transmission connection with the output shaft of the engine, the gearbox extends along the axis of the output shaft of the engine, the more gears of the gearbox, and the volume of the gearbox is correspondingly increased. The length of the longitudinal arrangement of the drive train is therefore relatively long, the required longitudinal space of the nacelle is enormous and it is also more difficult to assemble.
After the power assembly is assembled, the engine is completely positioned in the engine room, only part of the gearbox is positioned in the engine room, the rest of the gearbox extends into the chassis and is connected with a transmission shaft of the rear wheel, namely, the end of the gearbox extends into the engine room and further into the chassis, and then the end of the engine is arranged in the engine room.
By way of example and not limitation, when the gearbox passes through the nacelle and extends into the chassis, due to the large size of the engine, it is empirically known that the engine is prone to contact the water box frame at the front of the nacelle, resulting in an incorrect assembly of the powertrain into the nacelle. Therefore, when the power assembly body and the cabin assembly body are assembled in a simulation mode, an assembly gap between an engine model of the power assembly body and a water tank frame model of the cabin assembly body is required to be obtained, so that whether the engine model of the power assembly body interferes with the water tank frame model of the cabin assembly body or not is judged, and the probability of interference between the engine model and the water tank frame model in the next step when the power assembly body is assembled along a track is judged.
In the simulation assembly process, only when any part of the power assembly body cannot interfere with any part of the cabin assembly body, the power assembly body can be correctly assembled in the cabin assembly body, and only then the assembly requirement is met. When the fitting clearance satisfies the fitting requirement, the method proceeds to step S60.
A result output module 60 for enabling the powertrain to be properly assembled into the nacelle.
In the simulation assembly process, when the power assembly body can be correctly assembled in the cabin assembly body, the power assembly can be correctly assembled in the cabin, namely the design of the power assembly and the cabin does not need to be modified, and the mass production can be realized.
On the contrary, in the simulation assembly process, when the power assembly cannot be correctly assembled in the cabin assembly body, it is indicated that the power assembly cannot be correctly assembled in the cabin, that is, the design of the power assembly and/or the cabin needs to be modified, and the vehicle type can be produced in batch only after the modification is carried out through the simulation assembly.
Compared with the prior art, adopt the power assembly check system that shows among this embodiment, beneficial effect lies in: the power assembly body of the power assembly and the cabin assembly body of the cabin are generated, the power assembly body is assembled from an initial position to a preset position in the cabin assembly body according to historical assembly data, an assembly gap between the power assembly body and any position of the cabin assembly body in the simulation assembly process is obtained, whether the assembly gap meets the assembly requirement is judged, only when the assembly gap meets the assembly requirement, the power assembly body can be assembled into the cabin assembly body, namely, the power assembly of a vehicle to be assembled can be correctly assembled into the cabin. In the embodiment, the assembly of the power assembly is checked through simulated assembly, and whether the power assembly and/or the engine room needs to be modified or not is judged according to the checking result, so that the assembly failure during the later-stage mass production of the new vehicle type is avoided.
Example four
A fourth embodiment of the invention provides a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method described in the first or second embodiment.
EXAMPLE five
A fifth embodiment of the invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method described in the first embodiment or the second embodiment when executing the program.
Those of skill in the art will understand that the logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be viewed as implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of checking the assembly of a powertrain, the method comprising:
acquiring historical assembly data of a power assembly of a historical vehicle type assembled on a general assembly line, wherein the historical assembly data at least comprises a lifting angle of the power assembly before the power assembly is lifted to a chassis, and the lifting angle is an elevation angle between a power line of the power assembly and an XY plane;
acquiring three-dimensional data of a cabin of a vehicle to be assembled, and generating a cabin assembly body corresponding to the cabin according to the three-dimensional data of the cabin;
acquiring three-dimensional data of a power assembly of a vehicle to be assembled, generating a power assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly, and placing the power assembly body at an initial position outside the cabin assembly body in a preset program;
simulating an assembly process of assembling the power assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle;
acquiring an assembly gap between any part and the cabin assembly body in the simulated assembly process of the power assembly body, and judging whether the assembly gap meets the assembly requirement;
and if so, judging that the power assembly can be correctly assembled in the engine room.
2. The method for assembling and checking the powertrain according to claim 1, wherein the step of simulating an assembling process of the powertrain assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle specifically comprises:
generating a track line for assembling the power assembly body into the cabin assembly body according to the hoisting angle;
simulating the assembly of the powertrain assembly from an initial position to a predetermined position within the nacelle assembly along the trajectory.
3. The powertrain assembly checking method of claim 3, wherein the step of simulating the assembly of the powertrain assembly from an initial position to a predetermined position within the nacelle assembly along the trajectory line comprises:
controlling the power assembly body to descend from an initial position along a Z axis and move towards the interior of the cabin assembly body along an X axis until a gearbox suspension fastener of the power assembly body corresponds to a connecting hole of a first frame cross beam;
and controlling the power assembly body to rotate downwards along the Y axis until the engine suspension of the power assembly body is attached to the top surface of the second frame cross beam.
4. The powertrain assembly checking method of any one of claims 1-3, wherein prior to the step of simulating an assembly process of the powertrain assembly from an initial position to a predetermined position within the nacelle assembly, the method further comprises:
determining a first boundary frame of the power assembly according to the three-dimensional data of the power assembly, and setting a first color corresponding to the first boundary frame;
and determining a second boundary frame of the cabin assembly according to the three-dimensional data of the cabin assembly, and setting a second color corresponding to the second boundary frame, wherein the first color and the second color have visual difference.
5. The powertrain assembly checking method according to claim 4, wherein the step of obtaining the assembly clearance between any part of the powertrain assembly body and the nacelle assembly body during the simulated assembly process specifically comprises:
judging whether two ends of the first boundary frame are intersected with two ends of the second boundary frame or not and forming a third color in the process of controlling the power assembly body to move along the Z axis and the X axis;
and judging whether two sides of the first boundary frame are intersected with two sides of the second boundary frame or not and forming a third color in the process of controlling the power assembly to rotate downwards along the Y axis.
6. The powertrain assembly verification method of claim 5, further comprising:
marking the interference range with the third color to obtain interference information of the power assembly body and the cabin assembly body;
and acquiring a first interference range related to the power assembly in the interference range and acquiring a second interference range related to the cabin assembly in the interference range according to the interference information.
7. The powertrain assembly verification method of claim 6, further comprising:
simulating and removing a first interference range of the power assembly body, calculating a first structural characteristic of the power assembly, and judging whether the function of the power assembly is damaged or not after the first interference range is removed according to the first structural characteristic of the power assembly;
and simulating to remove a second interference range of the cabin assembly body, calculating a second structural characteristic of the cabin, and judging whether the function of the cabin is damaged after the second interference range is removed according to the second structural characteristic of the cabin.
8. A powertrain assembly verification system, comprising:
the system comprises a first data acquisition module, a second data acquisition module and a control module, wherein the first data acquisition module is used for acquiring historical assembly data of assembling a power assembly of a historical vehicle type on a general assembly line, the historical assembly data at least comprises a lifting angle of the power assembly before the power assembly is lifted to a chassis, and the lifting angle is an elevation angle between a power line of the power assembly and an XY plane;
the second data acquisition module is used for acquiring three-dimensional data of a cabin of a vehicle to be assembled and generating a cabin assembly body corresponding to the cabin according to the three-dimensional data of the cabin;
the third data acquisition module is used for acquiring three-dimensional data of a power assembly of a vehicle to be assembled, generating a power assembly body corresponding to the power assembly according to the three-dimensional data of the power assembly, and placing the power assembly body at an initial position outside the cabin assembly body in a preset program;
the simulation assembly module is used for simulating an assembly process of the power assembly body from an initial position to a preset position in the cabin assembly body according to the hoisting angle;
the assembly judgment module is used for acquiring an assembly gap between any part and the cabin assembly body in the simulated assembly process of the power assembly body and judging whether the assembly gap meets the assembly requirement;
and the result output module is used for judging that the power assembly can be correctly assembled in the engine room when the assembly clearance meets the assembly requirement.
9. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 7.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1-7 when executing the program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111396669.3A CN114313070B (en) | 2021-11-23 | 2021-11-23 | Power assembly assembling and checking method, system, storage medium and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111396669.3A CN114313070B (en) | 2021-11-23 | 2021-11-23 | Power assembly assembling and checking method, system, storage medium and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114313070A true CN114313070A (en) | 2022-04-12 |
| CN114313070B CN114313070B (en) | 2023-09-26 |
Family
ID=81045816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111396669.3A Active CN114313070B (en) | 2021-11-23 | 2021-11-23 | Power assembly assembling and checking method, system, storage medium and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114313070B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024405A (en) * | 2000-09-25 | 2002-03-30 | 이계안 | Body panel assembly-analyzing method by using ccm simulation |
| KR20040031212A (en) * | 2002-10-04 | 2004-04-13 | 현대자동차주식회사 | Linkage design method of wind shield wiper on vehicle |
| CN107490489A (en) * | 2017-06-28 | 2017-12-19 | 奇瑞汽车股份有限公司 | The method that the checking of automobile power assembly attitude angle is checked |
| CN112883486A (en) * | 2021-01-26 | 2021-06-01 | 上海驭瑞汽车科技有限公司 | Intelligent design method for passenger car body based on CATIA knowledge engineering |
-
2021
- 2021-11-23 CN CN202111396669.3A patent/CN114313070B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020024405A (en) * | 2000-09-25 | 2002-03-30 | 이계안 | Body panel assembly-analyzing method by using ccm simulation |
| KR20040031212A (en) * | 2002-10-04 | 2004-04-13 | 현대자동차주식회사 | Linkage design method of wind shield wiper on vehicle |
| CN107490489A (en) * | 2017-06-28 | 2017-12-19 | 奇瑞汽车股份有限公司 | The method that the checking of automobile power assembly attitude angle is checked |
| CN112883486A (en) * | 2021-01-26 | 2021-06-01 | 上海驭瑞汽车科技有限公司 | Intelligent design method for passenger car body based on CATIA knowledge engineering |
Non-Patent Citations (2)
| Title |
|---|
| 孙华连等: "动力总成成车数模搭载之研究", 《海峡科学》 * |
| 罗兴赞等: "基于CATIA的模拟装配应用", 《机械制造》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114313070B (en) | 2023-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Reedy et al. | Model based design accelerates the development of mechanical locomotive controls | |
| CN113291197B (en) | Battery replacement station, battery replacement control method, medium, equipment and charging control device thereof | |
| CN108520133A (en) | Automobile storage battery installing bracket strength analysis method | |
| CN116853073B (en) | New energy electric automobile energy management method and system | |
| CN114313070B (en) | Power assembly assembling and checking method, system, storage medium and equipment | |
| CN112417609A (en) | Steering transmission shaft optimization design method, computer equipment and storage medium | |
| CN105022887A (en) | Evaluation method and apparatus for reinforcing bracket of automobile | |
| CN112764374A (en) | Vehicle control unit configuration flashing method and system | |
| SE536187C2 (en) | Procedure and system for troubleshooting a bodybuilding function in vehicles | |
| CN211652091U (en) | Test equipment of electric power steering system | |
| CN210364132U (en) | Unmanned vehicle body convenient to maintain | |
| CN103049585A (en) | Load extracting method and device for parts of automobile chassis and automobile body under extreme working conditions | |
| CN111209649B (en) | Drive shaft jumping checking method | |
| CN115982888A (en) | Method, system, equipment and storage medium for model selection of construction elevator system | |
| CN112036066B (en) | Method and device for arranging damping pad of vehicle body, electronic equipment and storage medium | |
| CN104828152A (en) | Production method of automobile rear floorboard, automobile rear floorboard and automobile having same | |
| CN113361038A (en) | Converter lightweight method, system, server and computer readable storage medium | |
| CN112883501A (en) | Method for constructing digital research and development platform system architecture of tractor | |
| CN113565952A (en) | Gear shifting force correction control method and system for AMT (automated mechanical transmission) gearbox of new energy automobile | |
| CN116337484B (en) | Drive axle endurance test method, system, computer and readable storage medium | |
| CN111709158A (en) | Automobile power assembly suspension response calculation method and system | |
| JP2011252805A (en) | Vehicle evaluation system | |
| CN115758564A (en) | Standard component modeling method and system, readable storage medium and electronic equipment | |
| CN114580186A (en) | Suspension strength inspection method, device, equipment and storage medium | |
| CN118673742A (en) | Analysis method, system and medium for vibration intensity of automobile power assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |