CN111891259A - Small-batch trial production system and method in automobile assembly - Google Patents
Small-batch trial production system and method in automobile assembly Download PDFInfo
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- CN111891259A CN111891259A CN201910372924.7A CN201910372924A CN111891259A CN 111891259 A CN111891259 A CN 111891259A CN 201910372924 A CN201910372924 A CN 201910372924A CN 111891259 A CN111891259 A CN 111891259A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/14—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being passenger compartment fittings, e.g. seats, linings, trim, instrument panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
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- Automatic Assembly (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention discloses a small-batch trial production system in automobile assembly, which comprises a sliding plate line and a chassis line, wherein the sliding plate line is annular and is used for installing a front interior trim and a rear interior trim, the chassis line is annular and is used for assembling a chassis, the chassis line is positioned above the sliding plate line, and the chassis line is connected with the sliding plate line through a lifting device. The invention also discloses a small and medium batch trial production method of the automobile assembly, which is applied to the small batch trial production system of the automobile assembly. The small-batch trial production system and the small-batch trial production method in the automobile assembly adopt an annular structure through the overall layout, the front and rear inner decorations share the sliding plate line, the chassis line is arranged above the sliding plate line, the assembly can be met, the aerial cache effect can be realized, the requirement on the quantity of mass production stations can be met through the turn, and more assembly stations can be realized in a limited space.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a small and medium batch trial production system and method for automobile assembly.
Background
Along with the increasing competition of the domestic automobile industry, the development cycle of domestic automobile products is shorter and shorter, the parallel trial production work of multiple platforms, multiple varieties and multiple projects is more and more, and the competition is more and more intense. In order to shorten the production period of the sample vehicle trial production, reduce the production cost and improve the quality stability, various large automobile enterprises continuously improve the sample vehicle trial production capacity by measures of enlarging the sample vehicle trial production scale, increasing the sample vehicle trial production personnel, optimizing the sample vehicle trial production flow and the like.
Because of the limitation of the factors such as the site and the equipment investment cost, the traditional trial production line generally adopts a simple line body. The simple line body is assembled by a front inner decoration line, a chassis line and a rear inner decoration line, and the front inner decoration line manually pushes the car body forwards by a handcart or a flat car according to a streamline mode; the chassis line is used for completing the assembly of the chassis parts by using a lifting machine or an aerial conveyor line; and the rear inner decoration line manually pushes the vehicle to a subsequent station because the tire is installed.
The existing trial-manufacturing line has simple process layout and low manufacturing cost, and has obvious advantages in production efficiency compared with the traditional workstation mode. However, the number of assembly stations is limited, the automation degree of equipment is low, and the defects of insufficient process verification, low trial production efficiency and the like still exist, so that the conventional trial production line can only meet the trial production tasks of small batches and does not have the capability of mass production process verification.
Disclosure of Invention
The invention aims to provide a small-batch trial production system and method in automobile assembly, which can realize more assembly stations in a limited space.
In order to achieve the purpose, the invention provides a small-batch trial production system in automobile assembly, which comprises a sliding plate line and a chassis line, wherein the sliding plate line is annular and is used for mounting a front interior trim and a rear interior trim, the chassis line is annular and is used for assembling a chassis, the chassis line is positioned above the sliding plate line, and the chassis line is connected with the sliding plate line through a lifting device.
In one embodiment, the slide plate line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side, far away from the chassis assembly station, of the lifting device.
In one embodiment, the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines.
In one embodiment, the chassis line is an EMS line.
The invention also provides a medium and small batch trial production method for the automobile assembly, which adopts the medium and small batch trial production system for the automobile assembly and comprises the following steps: the vehicle body is provided with a front inner decoration on the sliding plate line; lifting the vehicle body to the chassis line, and performing chassis assembly on the chassis line; and lowering the vehicle body to the sliding plate line, and installing a rear inner decoration on the sliding plate line.
In one embodiment, the slide plate line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the vehicle body includes in the slide line installation front trim: the vehicle body is loaded from a loading station, and a front interior trim is installed at a first row of interior trim assembly stations; the lifting of the vehicle body to the chassis line, chassis assembly at the chassis line includes: lifting the vehicle body to the chassis line by using the lifting device, and performing chassis assembly at the chassis assembly station; the lowering of the vehicle body to the skateboard line at which the interior trim is installed includes: and lowering the vehicle body to the slide plate line by using the lifting device, and installing the rear interior trim at the second row of interior trim assembling stations.
In one embodiment, the slide plate line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines; the vehicle body is in before slide line installation interior trim includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; the lifting of the vehicle body to the chassis line, chassis assembly at the chassis line includes: lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; the lowering of the vehicle body to the skateboard line, the interior trim installed at the skateboard line, comprising: lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing the rear interior trim at the two rows of interior trim assembling stations, and simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device to assemble the chassis at the chassis assembling stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the sliding plate line, and the rear trim is installed on the sliding plate line.
In one embodiment, the slide plate line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines; the vehicle body is in before slide line installation interior trim includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; raising a vehicle body to the chassis line where chassis assembly is performed includes: the first batch of vehicle bodies are lifted to the chassis line by using the lifting device, chassis assembly is carried out at the chassis assembly station, and meanwhile, the second batch of vehicle bodies are loaded from the loading station, and front interior trim is installed at the two rows of interior trim assembly stations; the lowering of the vehicle body to the skateboard line, the interior trim installed at the skateboard line, comprising: lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing rear interior trim at the two rows of interior trim assembly stations, simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device, assembling a chassis at the chassis assembly stations, loading a third batch of vehicle bodies from a loading station, and installing front interior trim at the two rows of interior trim assembly stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the slide plate line, the slide plate line is installed for rear interior decoration, and meanwhile, the third batch of vehicle bodies are lifted to the chassis line for chassis assembly.
The invention also provides a medium-small batch trial-manufacturing method for automobile assembly, which is applied to the medium-small batch trial-manufacturing system for automobile assembly, wherein the slide plate line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines;
the method comprises selecting one of a plurality of modes, and operating according to the selected mode; the plurality of modes comprise a first mode, a second mode and a third mode;
wherein the first mode includes: the vehicle body is loaded from a loading station, and a front interior trim is installed at a first row of interior trim assembly stations; lifting the vehicle body to the chassis line by using the lifting device, and performing chassis assembly at the chassis assembly station; lowering the vehicle body to the slide plate line by using the lifting device, and installing a rear interior trim at the second row of interior trim assembly stations;
the second mode includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; lifting the first batch of vehicle bodies to the chassis line by using the lifting device, assembling the chassis at the chassis assembling station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembling stations; lowering a first batch of vehicle bodies to the slide plate line by using the lifting device, installing the rear interior trim at the two rows of interior trim assembling stations, and simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device, and assembling a chassis at the chassis assembling station; then, the method further comprises the following steps: after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the sliding plate line, and a rear trim is installed on the sliding plate line;
the third mode includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; lowering a first batch of vehicle bodies to the slide plate line by using the lifting device, installing rear interior trim at the two rows of interior trim assembling stations, simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device, assembling a chassis at the chassis assembling station, loading a third batch of vehicle bodies from the loading station, and installing front interior trim at the two rows of interior trim assembling stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the slide plate line, the rear trim is installed on the slide plate line, meanwhile, the third batch of vehicle bodies are lifted to the chassis line, and chassis assembly is carried out on the chassis line.
The small-batch trial production system and the small-batch trial production method for the automobile assembly adopt an annular structure through the overall layout, the front and rear inner decorations share the sliding plate line, the chassis line is arranged above the sliding plate line, the assembly can be met, the aerial cache effect can be achieved, the requirement on the quantity of mass production stations can be met through the turn, and more assembly stations can be realized in a limited space.
Drawings
Fig. 1 is a flow chart of a small-lot trial production process in an automobile assembly, which is applied to the small-lot trial production system in the automobile assembly according to the embodiment of the invention.
Fig. 2 is a schematic layout diagram of a small-lot trial-manufacturing system in an automobile assembly according to an embodiment of the present invention.
Fig. 3 is a path diagram of a first mode of a trial run method for small lots in an automobile assembly according to an embodiment of the present invention.
Fig. 4 is a logic diagram of a second mode of a trial run method for small lots in an automobile assembly according to an embodiment of the present invention.
Fig. 5 is a logic diagram of a third mode of a trial run method for small lots in an automobile assembly according to the embodiment of the present invention.
Detailed Description
The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. The present invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 is a flow chart of a small-lot trial production process in an automobile assembly, which is applied to the small-lot trial production system in the automobile assembly according to the embodiment of the invention. As shown in fig. 1, the trial-manufacture process of the automobile assembly includes a front trim line, a chassis line, and a rear trim line. The front interior trim line needs to be subjected to vehicle door disassembly, panoramic sunroof installation, ceiling installation, instrument assembly installation and the like, and the chassis line needs to be subjected to chassis combination, engine suspension fastening, air suspension filling and the like; the rear trim line needs to be provided with an auxiliary instrument desk, front and rear seat installation, front and rear protection installation, wheel installation, car door combination and the like.
As shown in fig. 2, the small lot trial system in the automobile assembly of the present embodiment includes a slider line and a chassis line. The sliding plate line is annular and is used for mounting a front interior trim and a rear interior trim. The chassis line is annular and is used for assembling the chassis. The chassis line is positioned above the sliding plate line, and the chassis line is connected with the sliding plate line through a lifting device.
In this embodiment, the slide plate line is provided with 12 trim assembling stations in two rows, namely, a first row of trim assembling stations T1-T6 and a second row of trim assembling stations F1-F6. The left sides of the two rows of interior trim assembly stations are provided with the two lifting devices (namely, the lower part 1 and the upper part 2 in the figure 2), the left sides of the two lifting devices are provided with two rotating tables, and a passageway is arranged between the two rotating tables. The first row of interior trim assembling stations on the right side of the two rows of interior trim assembling stations are provided with an upper part station (namely, an upper part 1 position in fig. 2), and the second row of interior trim assembling stations are provided with a lower part station (namely, a lower part 2 position in fig. 2).
In this embodiment, the chassis line is provided with a chassis assembly station, and the chassis assembly stations M01-M08 are located on the other side (i.e., the left side in fig. 2) of the lifting device away from the chassis assembly station. The chassis line comprises an outer ring and an inner ring, wherein the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines. In this embodiment, the chassis line is an EMS line, and the vehicle body is moved by the EMS self-propelled trolley.
The lifting device is positioned at the 1 position and the 2 position of the lower part of the slide plate line and the EMS upper part station and the EMS lower part station of the chassis line.
According to the standard procedures, 4.5 turns (54 stations) of the front interior trim assembly need to be rotated on a sliding plate line, 2.5 turns of the chassis assembly need to be rotated on an EMS line, and 3.5 turns (42 stations) of the rear interior trim assembly need to be rotated on the sliding plate.
The small-batch and medium-batch trial production method for the automobile assembly adopted by the small-batch and medium-batch trial production system for the automobile assembly comprises the following steps: one of the modes is selected, and then the operation is performed according to the selected mode. Of course, in other embodiments, one of the modes may be fixedly adopted.
Each mode includes the steps of: the vehicle body is provided with a front inner decoration on the sliding plate line; lifting the vehicle body to the chassis line, and performing chassis assembly on the chassis line; and lowering the vehicle body to the slide plate line, and installing a rear trim on the slide plate line.
In this embodiment, the first mode, the second mode, and the third mode are included. Other modes may also be included in other embodiments.
The first mode is a slow beat mode comprising: the vehicle body is loaded from a loading station, and a front trim is installed at a first row of trim assembly stations; lifting the vehicle body to the chassis line by using the lifting device, and performing chassis assembly at the chassis assembly station; and lowering the vehicle body to the slide plate line by using the lifting device, and installing the rear interior trim at the second row of interior trim assembling stations.
In the concrete implementation, as shown in fig. 3, the vehicle bodies are loaded from the sliding plate loading 1-position transfer machine, the number of the continuously loaded vehicle bodies is less than or equal to 10, the continuously loaded vehicle bodies pass through T1-T6 and then reach the sliding plate unloading 1 position, the sliding plate unloading 1 position corresponds to an EMS self-propelled trolley, the EMS self-propelled trolley hooks the vehicle bodies at the sliding plate unloading 1 position, the vehicle bodies pass through M01-M08 stations in the air and then reach the EMS unloading position, and a lifting appliance at the EMS unloading position drops the vehicle bodies with the tires on the sliding plate loading 2 positions, and finally the vehicle bodies leave from the rotating table 3 after passing through F1-F6.
This pattern is the shortest path, passing through a total of 18 active workstations.
The second mode is a fast beat mode, comprising: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing the rear interior trim at the two rows of interior trim assembling stations, and simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device to assemble the chassis at the chassis assembling stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the sliding plate line, and the rear trim is installed on the sliding plate line.
Referring to fig. 4, two key points for implementing this mode are: (1) firstly, all the components are hung in a rotating way and then are combined in a combining way; (2) the hanging is carried out twice. 20 vehicles are arranged on the EMS line, and the exchange transfer of 20 vehicles is divided into two times of transfer on the sliding plate line. The total time from the first batch of bodies to the second batch of bodies is about 11 hours, wherein 4.5 circles (54 stations) are rotated on the slide plate line, 2.5 circles are rotated on the EMS line when the chassis is assembled, and 3.5 circles (42 stations) are rotated on the slide plate by the rear trim. The operating logic is as follows:
(1) starting getting on: the first 20 cars are scanned and loaded at the loading position, the sliding plates start to rotate, the number of the circles is determined by numerical values issued by an MES, whether the cars are right or not is manually confirmed on the HMI, and the loading is stopped after 20 cars are loaded (the number of the empty sliding plates can be increased in the middle, and is less than 20 cars), so that two continuous sliding plates are left empty;
(2) a sliding plate is turned (determined by MES, generally 4 circles and a half) to be used as a front inner decoration (the number of the front inner decoration is 12), the front inner decoration is hung on an EMS hanger after the front inner decoration is finished, and the hanging time is 1.5 minutes to finish one vehicle;
(3) when the first batch of cars is hung and the skateboards are turned to the fork-type parking spaces again, the second batch of cars (the first) is loaded, and two continuous skateboards are required to be emptied finally (the number of empty skateboards can be increased in the middle, and is less than 20);
(4) after the EMS lifting appliance is connected to the automobile, the first circle (including a rotary hanger) performs preparation work before combination, the second circle performs combination and chassis work, and the work is required to be evenly distributed to each station to improve the efficiency;
(5) after the EMS lifting appliance rotates for two circles (the last vehicle is assembled completely), the first vehicle is behind the vehicle just assembled completely, and when the first vehicle reaches the position for hanging under the EMS, whether hanging down or waiting is determined according to the state of the sliding plate rotating circle (automatically determined by a PLC); the key here is that the second batch of upholstery must be completed and the first batch of packages completed;
(6) after the first batch of the finished interior decorations are hung down and made into the rear interior decorations (generally, the finished interior decorations are turned by 3 circles and a half) by the MES, the finished interior decorations (the rear interior decorations are also 12 stations) are off-line at a turntable, the off-line time is 1.5 minutes, one vehicle is needed, and the equipment automatically closes the fence after the vehicle is separated from the fence and a confirmation key is pressed;
(7) after the first batch is off-line, the EMS automatically hangs a second batch of cars down to be used as a back trim;
(8) and (4) after finishing the second batch of interior trim, inserting the line, starting to connect a third batch of vehicles, and making front interior trim, wherein the principle is the same as that of the first batch, and the process is carried out circularly.
The third mode is also a fast beat mode, comprising: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing rear interior trim at the two rows of interior trim assembly stations, simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device, assembling a chassis at the chassis assembly stations, loading a third batch of vehicle bodies from a loading station, and installing front interior trim at the two rows of interior trim assembly stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the sliding plate line, the sliding plate line is installed on the rear inner decoration, and simultaneously, the third batch of vehicle bodies are lifted to the chassis line, and chassis assembly is carried out on the chassis line.
Referring to fig. 5, the third mode is optimized based on the second mode, and the difference is that the first batch of vehicle bodies with tires rotate 3.5 circles on the slide plate line, and the interior trim assembly is directly off-line after the completion, and the second mode is that the third batch of vehicle bodies are not directly mounted on the slide plate, but the second batch of vehicle bodies on the EMS line are waited until the second batch of vehicle bodies all fall on the slide plate from the air, and the interior trim assembly is started to be off-line after the rotation of 3.5 circles is completed. And in the third mode, a third batch of vehicle bodies are directly arranged on the sliding plate line and rotate for 4.5 circles to carry out front interior trim assembly, after the front interior trim is assembled, the third batch of vehicle bodies are hung on the EMS line, the second batch of vehicle bodies fall on the sliding plate line, the assembly of the rear interior trim for 3.5 circles is completed, and then the cycle is carried out according to the flow.
The first mode is suitable for trial production in small batches, and the number of continuous vehicles is less than or equal to 10; the operation logics of the second mode and the third mode are suitable for medium-batch trial production, the on-line logic operation efficiency of the second mode is slightly lower than that of the third mode, the second mode is suitable for continuous on-line 2 batches of vehicle bodies, and the third mode is suitable for continuous on-line 3 batches and above.
Compared with the prior art, the embodiment has the following characteristics:
1) efficiency is improved by equipping advanced automation equipment: the front and rear inner decoration lines are assembled by adopting slide plate line equipment, the chassis line adopts EMS self-propelled trolley equipment, and the equipment automatically runs according to the established running logic and production rhythm, so that the problem of low trial production efficiency is effectively solved;
2) the verification of mass production is realized by adopting an annular layout form, sharing a slide plate line for assembling front and rear interior trims and utilizing an EMS line to cache the automobile body. Through process analysis and process route arrangement, three operation strategies of the equipment are determined: the slow-beat mode, the fast-beat mode I and the fast-beat mode II realize various modes in different trial production stages, and effectively solve the problem of insufficient process verification.
Compared with the prior art, the embodiment has the following advantages:
1) possess the ability of getting online in batches: the number of the vehicle bodies continuously on-line on the original trial production line is a unit number, and the flexible pilot production line can realize the capability of continuously on-line 20 vehicle bodies;
2) production efficiency is improved by 6 times compared with the original mode: the original trial-manufacturing line can only finish 4 cars at most every day, and the flexible pilot-manufacturing line can finish the trial-manufacturing tasks of 24 cars every day, so that the bottleneck of trial-manufacturing multiple car types in the automobile research and development stage and the annual trial-manufacturing productivity task are solved;
3) the assembly process is fully verified: and each project commissioning personnel can intervene in early-stage trial production and carry out work such as procedure optimization, man-machine analysis, process training and the like on a pilot line according to a mass production line mode, so that the production commissioning period of the product is effectively shortened.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the present specification and drawings, or used directly or indirectly in other related fields, are included in the scope of the present invention.
Claims (9)
1. The small-batch trial production system in the automobile assembly is characterized by comprising a sliding plate line and a chassis line, wherein the sliding plate line is annular and used for installing a front interior trim and a rear interior trim, the chassis line is annular and used for assembling a chassis, the chassis line is located above the sliding plate line, and the chassis line is connected with the sliding plate line through a lifting device.
2. The medium and small lot trial production system for automobile assembly according to claim 1, wherein the slider line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side, far away from the chassis assembly station, of the lifting device.
3. The medium-small batch trial system for automobile assembly according to claim 1 or 2, wherein the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines.
4. The small-lot trial production system in the automobile assembly as claimed in claim 1, wherein the chassis line is an EMS line.
5. A medium-small batch trial production method for automobile assembly, which is applied to the medium-small batch trial production system for automobile assembly according to claim 1, and comprises the following steps: the vehicle body is provided with a front inner decoration on the sliding plate line; lifting the vehicle body to the chassis line, and performing chassis assembly on the chassis line; and lowering the vehicle body to the sliding plate line, and installing a rear inner decoration on the sliding plate line.
6. The small-lot trial production method in the automobile assembly according to claim 5, wherein the slider line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the vehicle body is in before slide line installation interior trim includes: the vehicle body is loaded from a loading station, and a front interior trim is installed at a first row of interior trim assembly stations; the lifting of the vehicle body to the chassis line, chassis assembly at the chassis line includes: lifting the vehicle body to the chassis line by using the lifting device, and performing chassis assembly at the chassis assembly station; the lowering of the vehicle body to the skateboard line at which the interior trim is installed includes: and lowering the vehicle body to the slide plate line by using the lifting device, and installing the rear interior trim at the second row of interior trim assembling stations.
7. The small-lot trial production method in the automobile assembly according to claim 5, wherein the slider line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines; the vehicle body is in before slide line installation interior trim includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; the lifting of the vehicle body to the chassis line, chassis assembly at the chassis line includes: lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; the lowering of the vehicle body to the skateboard line at which the interior trim is installed includes: lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing the rear interior trim at the two rows of interior trim assembling stations, and simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device to assemble the chassis at the chassis assembling stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the sliding plate line, and the rear trim is installed on the sliding plate line.
8. The small-lot trial production method in the automobile assembly according to claim 5, wherein the slider line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines; the vehicle body is in before slide line installation interior trim includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; raising a vehicle body to the chassis line where chassis assembly is performed includes: the first batch of vehicle bodies are lifted to the chassis line by using the lifting device, chassis assembly is carried out at the chassis assembly station, meanwhile, the second batch of vehicle bodies are loaded from the loading station, and front interior trim is installed at the two rows of interior trim assembly stations; the lowering of the vehicle body to the skateboard line at which the interior trim is installed includes: lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing rear interior trim at the two rows of interior trim assembly stations, simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device, assembling a chassis at the chassis assembly stations, loading a third batch of vehicle bodies from a loading station, and installing front interior trim at the two rows of interior trim assembly stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the slide plate line, the slide plate line is installed for rear interior decoration, and meanwhile, the third batch of vehicle bodies are lifted to the chassis line for chassis assembly.
9. A medium-small batch trial production method for automobile assembly is characterized in that the medium-small batch trial production system for automobile assembly according to claim 1 is adopted, the slide plate line is provided with two rows of interior trim assembling stations, the two rows of interior trim assembling stations are respectively a first row of interior trim assembling stations and a second row of interior trim assembling stations, one side of the two rows of interior trim assembling stations is provided with the two lifting devices, the first row of interior trim assembling stations on the opposite side is provided with a workpiece loading station, and the second row of interior trim assembling stations is provided with a workpiece unloading station; the chassis line is provided with a chassis assembly station, and the chassis assembly station is positioned on the other side of the lifting device away from the chassis assembly station; the chassis line comprises an outer ring and an inner ring, and the outer ring and the inner ring are connected through turnouts to form a plurality of loop lines;
the method comprises selecting one of a plurality of modes, and operating according to the selected mode; the plurality of modes comprise a first mode, a second mode and a third mode;
wherein the first mode includes: the vehicle body is loaded from a loading station, and a front interior trim is installed at a first row of interior trim assembly stations; lifting the vehicle body to the chassis line by using the lifting device, and performing chassis assembly at the chassis assembly station; lowering the vehicle body to the slide plate line by using the lifting device, and installing a rear trim at the second row of trim assembling stations;
the second mode includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing the rear interior trim at the two rows of interior trim assembling stations, and simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device to assemble the chassis at the chassis assembling stations; then, the method further comprises the following steps: after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are taken off line, the second batch of vehicle bodies are lowered to the slide plate line, and the rear trim is installed on the slide plate line;
the third mode includes: a first batch of vehicle bodies are loaded from a loading station, and front interior trim is installed at two rows of interior trim assembly stations; lifting the first batch of vehicle bodies to the chassis line by using the lifting device, carrying out chassis assembly at the chassis assembly station, and simultaneously, loading the second batch of vehicle bodies from the workpiece loading station and installing front interior trim at the two rows of interior trim assembly stations; lowering a first batch of vehicle bodies to the sliding plate line by using the lifting device, installing rear interior trim at the two rows of interior trim assembly stations, simultaneously lifting a second batch of vehicle bodies to the chassis line by using the lifting device, assembling a chassis at the chassis assembly stations, loading a third batch of vehicle bodies from a loading station, and installing front interior trim at the two rows of interior trim assembly stations; then, the method further comprises the following steps: and after the first batch of vehicle bodies are finished, the second batch of vehicle bodies are lowered to the slide plate line, the slide plate line is installed for rear interior decoration, and meanwhile, the third batch of vehicle bodies are lifted to the chassis line for chassis assembly.
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| CN113184083A (en) * | 2021-05-31 | 2021-07-30 | 上海布兰汀机电工程有限公司 | Discrete layout assembling method for automobile assembly line |
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| CN113184083A (en) * | 2021-05-31 | 2021-07-30 | 上海布兰汀机电工程有限公司 | Discrete layout assembling method for automobile assembly line |
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