Automobile assembly line and automobile assembly method

Abstract

The invention discloses an automobile assembly line and an automobile assembly method.The automobile assembly line comprises a first overturning station, a second overturning station, a third overturning station and a fourth overturning station, the production conveying device is located on the ground and used for receiving and transporting the overturned chassis; the second overturning station is located on the production conveying device and located behind the first overturning station along the conveying path of the production conveying device, and the chassis is overturned for the second time in the second overturning station; a rear axle assembly station and a front axle assembly station. Before the front axle component and the rear axle component are assembled to the chassis, the chassis is turned over for the first time, the chassis can enter the inverted state, the chassis does not need to be hoisted when the front axle component and the rear axle component are assembled, and therefore an air conveying line can be omitted, the construction period of an automobile assembly line can be shortened, and the cost can be reduced; and the device is suitable for quickly guiding chassis products.

Description

Technical Field

[0001] The present application belongs to the field of automobile production, and specifically relates to an automobile assembly line and an automobile assembly method. Background Art

[0002] With the development of science and technology, the assembly of automobiles, especially electric vehicles, is becoming more and more intelligent, and can often be completed on a single production line. However, in the existing automobile assembly process, ground conveyor lines and aerial conveyor lines are required to cooperate to complete the assembly of the automobile.

[0003] However, the construction period of the overhead conveyor line is long and the investment cost is high. Summary of the invention

[0004] The present application provides an automobile assembly line and an automobile assembly method, which can solve the problems of long construction period and high investment cost of overhead conveyor lines.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an automobile assembly line, which includes: a first flipping station, where the chassis is flipped for the first time; a production conveying device, located on the ground, receiving the flipped chassis and transporting it; a second flipping station, located on the production conveying device, along the transportation path of the production conveying device, the second flipping station is located behind the first flipping station, where the chassis is flipped for the second time; a rear axle assembly station, located on the production conveying device, arranged between the first flipping station and the second flipping station, where the rear axle components are assembled on the chassis; a front axle assembly station, located on the production conveying device, arranged between the first flipping station and the second flipping station, where the front axle components are assembled on the chassis.

[0006] By flipping the chassis for the first time before assembling the front axle components and the rear axle components to the chassis, the chassis can be put into an inverted state. When assembling the front axle components and the rear axle components, there is no need to lift the chassis. Therefore, the overhead conveyor line can be eliminated, shortening the construction period of the automobile assembly line, reducing costs, and being suitable for the rapid introduction of chassis products.

[0007] In some embodiments, the automobile assembly line also includes a first assembly station located on the production conveyor device, and along the transportation path of the production conveyor device, the rear axle assembly station and the front axle assembly station are located between the first assembly station and the second flipping station.

[0008] Some other front components can be configured in the first assembly station, further avoiding the use of overhead conveyor lines and ensuring that the chassis can be assembled through ground transportation.

[0009] In some embodiments, the automobile assembly line further includes a second assembly station located on the production conveyor device, and along the transport path of the production conveyor device, the rear axle assembly station and the front axle assembly station are located between the second assembly station and the first assembly station.

[0010] After the front axle components and the rear axle components are assembled, other components that are more convenient to assemble by turning the chassis over can be assembled on the chassis, further avoiding the use of overhead conveyor lines and ensuring that the chassis can be assembled by ground transportation.

[0011] In some embodiments, the automobile assembly line further includes a third assembly station located on the production conveyor device, along a transportation path of the production conveyor device, and the third assembly station is located behind the second flipping station.

[0012] Some parts that are suitable for assembly when the chassis is placed in the forward direction can be assembled after the chassis is turned over a second time, thereby reducing the complexity of assembly.

[0013] In some embodiments, the production conveyor is a circulation line.

[0014] This arrangement allows the production conveying device to operate all the time, making management easier.

[0015] In some embodiments, the automobile assembly line further includes a chassis storage line, the first flipping station is located on the chassis storage line, and the chassis storage line is connected to a starting point of the production conveying device; wherein the chassis storage line is used to store and convey the chassis.

[0016] This arrangement can facilitate control of the time and frequency of chassis entering the production conveying device, thereby preventing chassis from piling up and jamming on the production conveying device.

[0017] In some embodiments, the chassis is integrated with a battery.

[0018] By integrating the battery into the chassis, the operation process is simplified.

[0019] In some embodiments, the battery is integrated onto the chassis at the first assembly station or the second assembly station.

[0020] By integrating the battery on the chassis at the first assembly station or the second assembly station, the station utilization rate is improved.

[0021] In some embodiments, the automobile assembly line also includes: a rear axle assembly line, which is arranged on the ground, to assemble rear axle components; a front axle assembly line, which is arranged on the ground, to assemble front axle components; wherein the production conveying device, and / or between the rear axle assembly line and the rear axle assembly station, and / or between the front axle assembly line and the front axle assembly station, transports components via an intelligent trolley and / or a ground conveyor line.

[0022] By using intelligent trolleys and / or ground conveyor lines, the conveying process can be simplified.

[0023] In order to solve the above technical problems, another technical solution adopted by the present application is: to provide an automobile assembly method, which includes the following steps: flipping the chassis for the first time; assembling the front axle components; assembling the rear axle components; assembling the integrated front axle components on the chassis; assembling the integrated rear axle components on the chassis; flipping the chassis assembled with the front axle components and the rear axle components for the second time.

[0024] By flipping the chassis for the first time before assembling the front axle components and the rear axle components to the chassis, the chassis can be put into an inverted state. When assembling the front axle components and the rear axle components, there is no need to lift the chassis. Therefore, the overhead conveyor line can be eliminated, shortening the construction period of the automobile assembly line, reducing costs, and being suitable for the rapid introduction of chassis products.

[0025] In some embodiments, after the step of flipping the chassis for the first time, the method further includes: installing a bottom oil pipe, a wiring harness or a front cabin bracket of the chassis to the chassis.

[0026] After the chassis is turned over, the bottom oil pipe, wiring harness and front cabin bracket can be directly installed, which is convenient and quick and does not require overhead conveyor lines.

[0027] In some embodiments, before the step of flipping the chassis equipped with the front axle component and the rear axle component for a second time, it also includes: installing a bottom guard plate, a front end module or a heat pump module to the chassis equipped with the front axle component and the rear axle component.

[0028] After the chassis is turned over, the bottom guard plate, front-end module and heat pump module can be directly installed, which is convenient and quick and does not require overhead conveyor lines.

[0029] In some embodiments, after the step of flipping the chassis equipped with the front axle component and the rear axle component for a second time, the method further includes: installing a control module and tires on the chassis after the second flip.

[0030] The control module and the tires are not easy to install after the chassis is flipped for the first time, but are easy to install after the chassis is flipped for the second time.

[0031] In some embodiments, after the chassis is turned over for the first time, the chassis is transported by a circulating production conveyor device, and the production conveyor device is located on the ground.

[0032] According to this implementation mode, the production conveying device can be kept working, which is convenient for management.

[0033] In some embodiments, after the step of flipping the chassis for the first time, the method further includes: transporting the flipped chassis to the production conveying device.

[0034] This implementation can facilitate control of the time and frequency of chassis entering the production conveying device, thereby preventing chassis from piling up and clogging on the production conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0036] Figure 1 is a schematic structural diagram of a vehicle according to some embodiments;

[0037] Figure 2 is an exploded schematic diagram of a battery according to some embodiments;

[0038] Figure 3 is an exploded schematic diagram of a battery according to some embodiments;

[0039] Figure 4 is a schematic structural diagram of an automobile assembly line according to some embodiments;

[0040] Figure 5 is a flow chart of a method of assembling a vehicle according to some embodiments.

[0041] Marking Description:

[0042] Vehicle 1, battery 10, battery cell 20, controller 30, motor 40;

[0043] Box body 11, cover body 111, box shell 112, bottom plate 112a, electrical cavity 11a, converging component 12, support beam 114;

[0044] The first flipping station 611, the production conveying device 612, the rear axle assembly line 613, the front axle assembly line 614, the first assembly station 615, the rear axle assembly station 616, the front axle assembly station 617, the second assembly station 618, the second flipping station 619, the third assembly station 620, and the chassis storage line 621. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without spending creative work will fall within the scope of protection of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those generally understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific implementation methods, and are not intended to limit this application; the terms "including", "comprising", "having", "having", "containing", "including", etc. in the specification and claims of this application and the above-mentioned figure description are open-ended words. Therefore, "including", "comprising", "having" is a method or device with one or more steps or elements, for example, which has one or more steps or elements, but is not limited to having only these one or more elements. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "multiple" is two or more.

[0047] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0050] As mentioned above, it should be emphasized that when the term "includes / comprising" is used in this specification, it is used to clearly indicate the presence of the features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups of features, integers, steps, components. As used in this application, the singular forms "a", "an" and "the" also include plural forms, unless the context clearly indicates otherwise.

[0051] The words "a" and "an" in this specification may mean one, but may also be consistent with the meaning of "at least one" or "one or more". The term "about" generally means plus or minus 10% of the mentioned value, or more specifically plus or minus 5%. The term "or" used in the claims means "and / or" unless it is clearly stated that it refers to only alternative solutions.

[0052] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0053] Batteries mentioned in this field can be divided into disposable batteries and rechargeable batteries according to whether they are rechargeable. Disposable batteries (Primary Battery) are also called "disposable" batteries and original batteries, because after they are exhausted, they can no longer be recharged and can only be discarded. Rechargeable batteries are also called secondary batteries (Secondary Battery) or secondary batteries, storage batteries. The manufacturing materials and processes of rechargeable batteries are different from those of primary batteries. Its advantage is that it can be recycled many times after charging, and the output current load capacity of rechargeable batteries is higher than that of most disposable batteries. The common types of rechargeable batteries at present are: lead-acid batteries, nickel-metal hydride batteries, sodium-ion batteries and lithium-ion batteries. Lithium-ion batteries have the advantages of light weight, large capacity (the capacity is 1.5 to 2 times that of nickel-metal hydride batteries of the same weight), no memory effect, and have a very low self-discharge rate. Therefore, even though the price is relatively high, they are still widely used. Lithium-ion batteries are currently also widely used in pure electric vehicles and hybrid vehicles. The capacity of lithium-ion batteries used for this purpose is relatively low, but they have a larger output and charging current, and also have a longer service life, but the cost is higher.

[0054] The battery described in the embodiments of the present application refers to a rechargeable battery or a disposable battery. The embodiments disclosed in the present application will be described below mainly by taking a lithium-ion battery as an example. It should be understood that the embodiments disclosed in the present application are applicable to any other appropriate type of rechargeable battery. The battery mentioned in the embodiments disclosed in the present application can be directly or indirectly applied to an appropriate device to power the device.

[0055] The battery mentioned in the embodiments disclosed in this application refers to a single physical module including one or more battery cells to provide a predetermined voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack, etc. The battery cell is the basic unit in the battery, and can generally be divided into: cylindrical battery cells, square battery cells and soft-pack battery cells according to the packaging method. The following will mainly focus on square battery cells. It should be understood that the embodiments described below are also applicable to cylindrical battery cells or soft-pack battery cells in some aspects.

[0056] In existing automobile assembly lines, especially in assembly lines for automobiles using chassis, in order to assemble the chassis, it is often necessary to lift the chassis into the air and then assemble it. Especially for the front axle components and the rear axle components, when the front axle components and the rear axle components are assembled on the chassis, the chassis needs to be lifted before assembly can be performed. However, to lift the chassis, some aerial conveyor lines are required, such as some aerial grips and related conveyor lines. These devices need to be set up in the air, so when building an automobile assembly line, they will have higher construction requirements, and will also increase the investment funds and construction period of the construction. In addition, when operating, these aerial grips, etc., also need to be more careful, and safety problems are prone to occur.

[0057] In order to solve the problem of long construction period, high investment cost and unsuitability for rapid introduction of chassis products, the chassis can be turned over in advance so that the bottom of the chassis faces upwards, which is convenient for assembling most of the components installed at the bottom of the chassis. For example, the front axle components and the rear axle components can be directly assembled without lifting the chassis to expose the bottom. Therefore, before assembling the front axle components and the rear axle components, the chassis is turned over, which can eliminate the aerial conveyor line, shorten the construction period of the automobile assembly line, reduce costs, and be suitable for the rapid introduction of chassis products.

[0058] Based on the above considerations, in order to solve the problems of long construction period, high investment cost and unsuitability for rapid introduction of chassis products in existing overhead conveyor lines, an automobile assembly line and an automobile assembly method are designed.

[0059] For example, Figure 1 As shown, the figure is a simple schematic diagram of a vehicle 1 according to some embodiments. The vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 10 can be set inside the vehicle 1, for example, a battery 10 can be set at the bottom or the front or rear of the vehicle 1. The battery 10 can be used to power the vehicle 1, for example, the battery 10 can be used as an operating power source for the vehicle 1. And the vehicle 1 can also include a controller 30 and a motor 40. The controller 30 is used to control the battery 10 to power the motor 40, for example, for the working power demand of the vehicle 1 during starting, navigation and driving. In another embodiment of the present application, the battery 10 can not only be used as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1. The battery 10 referred to below can also be understood as a battery pack including a plurality of battery cells 20.

[0060] Figure 2 and Figure 3 1 and 2 show exploded views of a battery 10 according to some embodiments. Figure 2 and Figure 3 As shown, the battery 10 includes a plurality of battery cells 20 and a busbar 12 for electrically connecting the plurality of battery cells 20. In order to protect the battery cells 20 from being invaded or corroded by external liquids or foreign objects, the battery 10 includes a housing 11, which is used to encapsulate the plurality of battery cells and other necessary components, such as Figure 2 and Figure 3 As shown. In some embodiments, the box body 11 may include a cover 111 and a box shell 112, and the battery 10 may further include a support beam 114 extending between the cover 111 and the box shell 112, and the support beam 114 may extend from the bottom plate 112a of the box shell 112 toward the cover 111 in a direction perpendicular to the bottom plate 112a. The cover 111 and the box shell 112 are sealed together to jointly surround and form an electrical cavity 11a for accommodating a plurality of battery cells 20. In some other embodiments, the cover 111 and the box shell 112 may also be combined with each other without being sealed.

[0061] like Figure 4 As shown, Figure 4 It is a structural schematic diagram of an automobile assembly line according to some embodiments. In some embodiments, the automobile assembly line includes a first flipping station 611, a production conveying device 612, a rear axle subassembly line 613, a front axle subassembly line 614, a rear axle assembly station 616, a front axle assembly station 617 and a second flipping station 619. The chassis is flipped for the first time at the first flipping station 611. The production conveying device 612 is located on the ground, receives the flipped chassis and transports it. The rear axle subassembly line 613 is set on the ground to assemble the rear axle components. The front axle subassembly line 614 is set on the ground to assemble the front axle components. The rear axle subassembly line 613 and the front axle subassembly line 614 are both adjacent to or connected to the production conveying device 612. The rear axle subassembly line 613 and the front axle subassembly line 614 can also be independent of the production conveying device 612. After the rear axle components and the front axle components are assembled, they are transported to the production conveying device 612 by mechanical or manual means. The second flipping station 619 is located on the production conveying device 612. Along the transportation path of the production conveying device 612, the second flipping station 619 is located behind the first flipping station 611, where the chassis is flipped for the second time. The rear axle assembly station 616 is located on the production conveying device 612, and is arranged between the first flipping station 611 and the second flipping station 619, and is adjacent to the rear axle subassembly line 613, where the rear axle components are assembled on the chassis. The front axle assembly station 617 is located on the production conveying device 612, and is arranged between the first flipping station 611 and the second flipping station 619, and is adjacent to the front axle subassembly line 614, where the front axle components are assembled on the chassis.

[0062] The chassis is preferably a chassis integrated with a battery. The battery is, for example, the battery described in the above embodiment. When the battery is integrated into the chassis, a chassis is formed, or it is called an integrated pure electric intelligent chassis. This battery will serve as a power battery to provide power for other components on the car. The first flipping station 611 is used to flip the chassis for the first time so that its bottom faces upward. The bottom of the chassis can be understood as the side of the chassis facing the ground when the car is assembled and driving. In some embodiments, a flipping machine can be used to flip the chassis. The production conveying device 612 is a transport line capable of transporting equipment such as the chassis, driving the chassis and other equipment to move along a preset path, thereby realizing the assembly of the chassis at various different positions. In the rear axle subassembly line 613, for example, the rear subframe, connecting rod, shock absorber, motor, gearbox, steering components, and brake components are assembled, corresponding to some components of the rear half of the car, collectively referred to as rear axle components. In the front axle subassembly line 614, for example, the front subframe, connecting rod, shock absorber, motor, gearbox, steering component, and brake component are assembled, which correspond to some parts of the front half of the car, collectively referred to as the front axle component. Assembling the rear axle component and the front axle component first can save the time of assembling the rear axle component and the front axle component to the chassis. The rear axle assembly station 616 is used to assemble the rear axle component to the chassis, and the front axle assembly station 617 is used to assemble the front axle component to the chassis. The assembly can be performed manually, or by machinery or robots. The rear axle assembly station 616 and the front axle assembly station 617 can be a common fixed position, and the part of the production conveying device 612 running to this position is the rear axle assembly station 616 or the front axle assembly station 617. Alternatively, the rear axle assembly station 616 and the front axle assembly station 617 are fixed stations, and the production conveying device 612 passes through the rear axle assembly station 616 or the front axle assembly station 617. There may be one or more rear axle assembly station 616 and / or front axle assembly station 617. The transport path of the production conveyor 612 is the transport path of the chassis on the production conveyor 612.

[0063] By flipping the chassis for the first time before assembling the front axle components and the rear axle components to the chassis, the chassis can be put into an inverted state. When assembling the front axle components and the rear axle components, there is no need to lift the chassis. Therefore, the overhead conveyor line can be eliminated, shortening the construction period of the automobile assembly line, reducing costs, and being suitable for the rapid introduction of chassis products.

[0064] In some embodiments, the automobile assembly line also includes a first assembly station 615 located on the production conveyor 612. Along the transportation path of the production conveyor 612, the rear axle assembly line 613 and the front axle assembly line 614 are located between the first assembly station 615 and the second flipping station 619.

[0065] The first assembly station 615 can be used to assemble components such as the bottom oil pipe, the wiring harness, and the front cabin bracket. The first assembly station 615 is a station that the chassis passes through after being transported by the production conveyor 612. Similarly, there can be one or more first assembly stations 615, which respectively assemble the bottom oil pipe, the wiring harness, the front cabin bracket, and other components.

[0066] Some other front components can be configured in the first assembly station 615, further avoiding the use of an overhead conveyor line and ensuring that the chassis can be assembled by ground transportation.

[0067] In some embodiments, the automobile assembly line also includes a second assembly station 618 located on the production conveyor 612. Along the transportation path of the production conveyor 612, the rear axle assembly line 613 and the front axle assembly line 614 are located between the second assembly station 618 and the first assembly station 615.

[0068] The second assembly station 618 can be used to assemble components such as the bottom guard plate, the front-end module, and the heat pump module. After being transported by the production conveyor 612, the chassis first passes through the first assembly station 615, then passes through the rear axle assembly station 616 and the front axle assembly station 617, and then passes through the second assembly station 618. Because the components assembled at the second assembly station 618 require the rear axle components and the front axle components to be assembled before they can be assembled. Similarly, there can be one or more second assembly stations 618, which respectively assemble different components such as the bottom guard plate, the front-end module, and the heat pump module. After passing through the second assembly station 618, it will enter the second flipping station 619 to flip the chassis a second time so that its bottom surface faces the ground.

[0069] After the front axle components and the rear axle components are assembled, other components that are more convenient to assemble by turning the chassis over can be assembled on the chassis, further avoiding the use of overhead conveyor lines and ensuring that the chassis can be assembled by ground transportation.

[0070] In some embodiments, the automobile assembly line further includes a third assembly station 620 located on the production conveyor 612 . The third assembly station 620 is located behind the second flipping station 619 along the transportation path of the production conveyor 612 .

[0071] After the chassis passes through the second flipping station 619, it will enter the third assembly station 620. At the third assembly station 620, for example, the control module, tires and other components can be assembled, and related tests can also be performed. After passing through the third assembly station 620, the components that need to be assembled on the chassis are assembled with the outer wall, and after testing, they can be separated from the production conveying device 612. There can be one or more third assembly stations 620, which respectively perform the assembly of the control module and tires, related tests, etc.

[0072] Some parts that are suitable for assembly when the chassis is placed in the forward direction can be assembled after the chassis is turned over a second time, thereby reducing the complexity of assembly.

[0073] In some embodiments, production conveyor 612 is a loop circuit.

[0074] The circulation route is the path of the production conveying device 612, which is connected end to end to form a loop.

[0075] This arrangement allows the production conveying device 612 to operate all the time, making management easier.

[0076] In some embodiments, the automobile assembly line further includes a chassis storage line 621, which is a transportation line for storing chassis, and the first flipping station 611 is located on the chassis storage line 621, and the chassis storage line 621 is connected to the starting point of the production conveying device 612. After the battery is integrated into the chassis to form a chassis, it can be placed on the chassis storage line 621. When needed, the chassis is transported from the chassis storage line 621 to the production conveying device 612.

[0077] This arrangement can facilitate control of the time and frequency of chassis entering the production conveying device 612 , thereby preventing chassis from piling up and jamming on the production conveying device 612 .

[0078] In some embodiments, a battery is integrated into the chassis.

[0079] A battery is a single physical module that includes one or more battery cells to provide a predetermined voltage and capacity. It can include a battery module or a battery pack, etc.

[0080] By integrating the battery into the chassis early, the assembly process is simplified.

[0081] In some embodiments, the assembly of the battery integrated into the chassis may also be arranged at the first assembly station 615 or the second assembly station 618 .

[0082] By integrating the battery on the chassis at the first assembly station or the second assembly station, the station utilization rate is improved and the need to add an additional station to assemble the battery is eliminated.

[0083] In some embodiments, the production conveying device 612, and / or the rear axle subassembly line 613 and the rear axle assembly station 616, and / or the front axle subassembly line 614 and the front axle assembly station 617 are connected by an intelligent vehicle and / or a ground conveying line.

[0084] The smart car is a car capable of intelligent navigation. After setting the route, it can travel along the route and transport the chassis or other parts to the designated location. For example, the smart car can transport the rear axle components from the rear axle subassembly line 613 to the rear axle assembly station 616, the front axle components from the front axle subassembly line 614 to the front axle assembly station 617, and the chassis from the chassis storage line 621 to the production conveyor 612. Alternatively, the production conveyor 612 includes a plurality of smart cars, and the chassis is transported by the smart car. The ground conveyor line is a conveyor line laid on the ground, which can be a conveyor belt, a conveyor roller, etc. For example, it can be a plate chain sled conveyor line, a skateboard conveyor line, a roller conveyor line or a roller conveyor line. The roller conveyor line is mainly composed of standard rollers arranged continuously to form a roller conveyor line. The roller conveyor line generally transports a sled, and the sled carries the product to be transported. The roller conveyor is composed of individual rollers, which are generally continuous and can directly transport products or pallets.

[0085] By using intelligent trolleys and / or ground conveyor lines, the conveying process can be simplified.

[0086] like Figure 5 As shown, Figure 5 is a flow chart of an automobile assembly method according to some embodiments. In some embodiments, the automobile assembly method includes: in S11, the chassis is flipped for the first time. In S12, the front axle components are assembled. In S13, the rear axle components are assembled. In S14, the integrated front axle components are assembled on the chassis. In S15, the integrated rear axle components are assembled on the chassis. In S16, the chassis assembled with the front axle components and the rear axle components is flipped for the second time.

[0087] As can be seen from the figure, the three steps S11, S12 and S13 are independent of each other, and there is no interference between them, and there is no problem of sequence. In addition, in some embodiments, the order of the two steps S14 and S15 can be swapped, and it does not affect the implementation of this application. In addition, in some embodiments, before S11, the step of manufacturing the chassis can also be included.

[0088] By flipping the chassis for the first time before assembling the front axle components and the rear axle components to the chassis, the chassis can be put into an inverted state. When assembling the front axle components and the rear axle components, there is no need to lift the chassis. Therefore, the overhead conveyor line can be eliminated, shortening the construction period of the automobile assembly line, reducing costs, and being suitable for the rapid introduction of chassis products.

[0089] In some embodiments, after the step of turning over the chassis for the first time in S11, the method further includes installing the bottom oil pipe, wiring harness, and front cabin bracket on the chassis. This step is preferably performed before S14 and S15.

[0090] After the chassis is turned over, the bottom oil pipe, wiring harness and front cabin bracket can be directly installed, which is convenient and quick and does not require overhead conveyor lines.

[0091] In some embodiments, before the step of S16: performing a second flip of the chassis equipped with the front axle component and the rear axle component, the step further includes: installing a bottom guard plate, a front end module, and a heat pump module on the chassis equipped with the front axle component and the rear axle component. This step is preferably performed after S14 and S15, because the bottom guard plate, the front end module, and the heat pump module can be installed only after the front axle component and the rear axle component are assembled.

[0092] After the chassis is turned over, the bottom guard plate, front-end module and heat pump module can be directly installed, which is convenient and quick and does not require overhead conveyor lines.

[0093] In some embodiments, after the step S16: flipping the chassis equipped with the front axle components and the rear axle components for the second time, the method further includes: installing a control module and tires on the chassis after the second flipping.

[0094] The control module and the tires are not easy to install after the chassis is flipped for the first time, but are easy to install after the chassis is flipped for the second time.

[0095] In some embodiments, after the chassis is turned over for the first time, a circulating production conveying device is used to transport the chassis, and the production conveying device is located on the ground. The production conveying device is, for example, the production conveying device in the above-mentioned embodiment.

[0096] According to this implementation mode, the production conveying device can be kept working, which is convenient for management.

[0097] In some embodiments, after the step of flipping the chassis for the first time, the method further includes: transporting the flipped chassis to a production conveying device.

[0098] This implementation can facilitate control of the time and frequency of chassis entering the production conveying device, thereby preventing chassis from piling up and clogging on the production conveying device.

[0099] In some specific application scenarios, in order to solve the problems of long construction period and high investment cost of the aerial conveyor line, the automobile assembly line of the present application includes a first flipping station, a production conveying device, a first assembly station, a rear axle subassembly line, a front axle subassembly line, a rear axle assembly station, a front axle assembly station, a second assembly station, a second flipping station and a third assembly station. The chassis is flipped for the first time at the first flipping station. The production conveying device is located on the ground, receives the flipped chassis and transports it. The first assembly station is located on the production conveying device, and along the transportation path of the production conveying device, the rear axle subassembly line and the front axle subassembly line are located between the first assembly station and the second flipping station. The rear axle subassembly line is set on the ground to assemble the rear axle components. The front axle subassembly line is set on the ground to assemble the front axle components. The rear axle subassembly line and the front axle subassembly line are both adjacent to or connected to the production conveying device. The rear axle subassembly line and the front axle subassembly line can be independent of the production conveying device. After the rear axle components and the front axle components are assembled, they are transported to the production conveying device by mechanical or manual means. The second assembly station is located on the production conveying device. Along the transportation path of the production conveying device, the rear axle subassembly line and the front axle subassembly line are located between the second assembly station and the first assembly station. The rear axle assembly station is located on the production conveying device, arranged between the first flipping station and the second flipping station, adjacent to the rear axle subassembly line, where the rear axle components are assembled on the chassis. The front axle assembly station is located on the production conveying device, arranged between the first flipping station and the second flipping station, adjacent to the front axle subassembly line, where the front axle components are assembled on the chassis. The second flipping station is located on the production conveying device. Along the transportation path of the production conveying device, the second flipping station is located behind the first flipping station, where the chassis is flipped for the second time. The third assembly station is located on the production conveying device. Along the transportation path of the production conveying device, the third assembly station is located behind the second flipping station.

[0100] By flipping the chassis for the first time before assembling the front axle components and the rear axle components to the chassis, the chassis can be put into an inverted state. When assembling the front axle components and the rear axle components, there is no need to lift the chassis. Therefore, the overhead conveyor line can be eliminated, shortening the construction period of the automobile assembly line, reducing costs, and being suitable for the rapid introduction of chassis products.

[0101] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An automobile assembly line, characterized in that: The automobile assembly line comprises: The first turning station, where the chassis is turned over for the first time; A production conveying device, located on the ground, receives the flipped chassis and transports it; A second flipping station is located on the production conveying device and along the transportation path of the production conveying device. The second flipping station is located behind the first flipping station, where the chassis is flipped for the second time; A rear axle assembly station, located on the production conveyor device, disposed between the first flipping station and the second flipping station, where the rear axle components are assembled on the chassis; The front axle assembly station is located on the production conveying device and is arranged between the first flipping station and the second flipping station, where the front axle components are assembled on the chassis.

2. The automobile assembly line according to claim 1, characterized in that: The automobile assembly line also includes a first assembly station located on the production conveying device. Along the transportation path of the production conveying device, the rear axle assembly station and the front axle assembly station are located between the first assembly station and the second flipping station.

3. The automobile assembly line according to claim 2, characterized in that: The automobile assembly line also includes a second assembly station located on the production conveyor device. Along the transportation path of the production conveyor device, the rear axle assembly station and the front axle assembly station are located between the second assembly station and the first assembly station.

4. The automobile assembly line according to any one of claims 1 to 3, characterized in that: The automobile assembly line also includes a third assembly station located on the production conveying device and behind the second flipping station along the transportation path of the production conveying device.

5. The automobile assembly line according to any one of claims 1 to 4, characterized in that: The production and conveying device is a circulation line.

6. The automobile assembly line according to any one of claims 1 to 5, characterized in that: The automobile assembly line also includes a chassis storage line, the first flipping station is located on the chassis storage line, and the chassis storage line is connected to the starting point of the production conveying device; wherein, the chassis storage line is used to store and convey the chassis.

7. The automobile assembly line according to any one of claims 1 to 6, characterized in that: The chassis is integrated with a battery.

8. The automobile assembly line according to claim 3, characterized in that: The battery is integrated into the chassis at the first assembly station or the second assembly station.

9. The automobile assembly line according to any one of claims 1 to 8, characterized in that: The automobile assembly line also includes: The rear axle sub-assembly line is set up on the ground to assemble the rear axle components; The front axle subassembly line is set up on the ground to assemble the front axle components; Among them, the production conveying device, and / or, between the rear axle subassembly line and the rear axle assembly station, and / or, between the front axle subassembly line and the front axle assembly station, transports parts through intelligent vehicles and / or ground conveyor lines.

10. A method for assembling an automobile, characterized in that: The automobile assembly method comprises the following steps: Flip the chassis for the first time; Assemble the front axle components; Assemble the rear axle components; Assembling the integrated front axle components on the chassis; Assembling the integrated rear axle components on the chassis; The chassis assembled with the front axle component and the rear axle component is turned over for a second time.

11. The automobile assembly method according to claim 10, characterized in that: After the step of turning over the chassis for the first time, the method further comprises: Install the bottom fuel line, wiring harness, or front compartment bracket to the chassis.

12. The automobile assembly method according to claim 10 or 11, characterized in that: Before the step of flipping the chassis equipped with the front axle component and the rear axle component for the second time, the method further includes: An underbody guard, a front end module or a heat pump module is mounted to a chassis equipped with the front axle component and the rear axle component.

13. The automobile assembly method according to any one of claims 10 to 12, characterized in that: After the step of flipping the chassis equipped with the front axle component and the rear axle component for the second time, the method further includes: Install the control module and tires onto the chassis after the second flip.

14. The automobile assembly method according to any one of claims 10 to 13, characterized in that: After the chassis has been turned over for the first time, the chassis is transported using a circulating production conveyor device, which is located on the ground.

15. The automobile assembly method according to claim 14, characterized in that: After the first step of turning the chassis over, it also includes: The turned-over chassis is transported to the production conveying device.

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