Edge rolling tire film device and vehicle production system

Abstract

The utility model provides a rolloff tire mold device and a vehicle production system, the rolloff tire mold device comprises: a tire mold support assembly, which comprises a plurality of tire mold support units, the tire mold support units are provided with support surfaces, the plurality of support surfaces are used for being sequentially arranged along a to-be-rolloff part of a workpiece, and the support surfaces are provided with first detachable connection structures; the forming die assembly comprises a plurality of forming die units, each supporting face is provided with at least one forming die unit, the multiple forming die units are sequentially arranged along the part to be subjected to edge rolling, and the forming die units are provided with second detachable connecting structures detachably connected with the first detachable connecting structures. According to the technical scheme, the multiple sets of tire membrane assemblies can share one tire membrane supporting assembly, and the universality and reusability of the tire membrane supporting assembly are enhanced; the tire film supporting assembly and the tire film assembly are detachably connected, so that the edge rolling tire film device is light in weight; the tire film supporting assembly can be suitable for multiple tire film assemblies, and the development period of the edge rolling tire film device is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle production systems, and more specifically, to a rolled tire membrane device and a vehicle production system. Background Art

[0002] The traditional roll-edge diaphragm device is made of cast steel, which has the following disadvantages for trial production and welding workshops with a low degree of automation: the diaphragm casting process cycle of the roll-edge diaphragm device is long, which reduces the efficiency of the vehicle's roll-edge operation; the diaphragm is heavy, so the ergonomics is poor during manual operation; the diaphragm is a customized structure, and the diaphragm has a low reusability rate, resulting in a short service life of the diaphragm. Utility Model Content

[0003] The utility model aims to provide a rolled tire membrane device and a vehicle production system to solve the technical problems of the rolled tire membrane device in the prior art, such as long processing cycle, poor ergonomics and short service life.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, a rolled fetal membrane device is provided, comprising:

[0006] A fetal membrane support assembly, comprising a plurality of fetal membrane support units, each of which is provided with a support surface, the plurality of support surfaces being used to be sequentially arranged along a portion of a workpiece to be rolled, and a first detachable connection structure being provided on the support surface;

[0007] The fetal membrane assembly includes multiple fetal membrane units, at least one of which is arranged on each supporting surface, and multiple fetal membrane units are arranged in sequence along the part to be rolled of the workpiece. The fetal membrane unit is provided with a second detachable connecting structure that is detachably connected to the first detachable connecting structure.

[0008] By adopting the above technical solution:

[0009] First, in the hemming operation of workpieces of different models, the operator selects membrane units of different shapes to form a membrane assembly according to the actual shape of the workpiece, that is, multiple groups of membrane assemblies can share one membrane support assembly, thus enhancing the versatility of the membrane support assembly and making the hemming membrane device have the advantage of high flexibility;

[0010] Secondly, the fetal membrane support component and the fetal membrane component are detachably connected, which reduces the weight of any component and makes the rolled fetal membrane device lightweight;

[0011] Finally, the fetal membrane support component can be applied to multiple groups of fetal membrane components. For the hemming operation of workpieces of multiple models, the production needs can be met without too many types of fetal membrane support components, which reduces the development cycle of the hemming fetal membrane device.

[0012] In one embodiment, one of the first detachable connecting structure and the second detachable connecting structure is a through-slot structure, and the other of the first detachable connecting structure and the second detachable connecting structure is a boss structure, and the boss structure is inserted into the through-slot structure.

[0013] By adopting the above technical solution, the through groove structure and the boss structure can easily realize the detachable connection between the fetal membrane unit and the fetal membrane support unit, and at the same time make it convenient to disassemble and assemble the fetal membrane unit from the fetal membrane support unit.

[0014] In one embodiment, the through-slot structure is a T-slot, a dovetail slot, a square slot or a circular slot; and the boss structure is adapted to the through-slot structure.

[0015] By adopting the above technical solution, the difficulty of matching the through groove structure and the boss structure is reduced, making it easy to disassemble and assemble the fetal membrane unit and the fetal membrane support unit.

[0016] In one embodiment, a limiting structure is further provided on the support surface, and the limiting structure is located in the disassembly direction of the fetal membrane unit, and the limiting structure is used to limit the fetal membrane unit.

[0017] By adopting the above technical solution, the stability of the fetal membrane unit when fixed to the fetal membrane supporting unit is improved.

[0018] In one embodiment, the limiting structure is retractably arranged on the support surface, and the limiting structure can limit the fetal membrane unit when the limiting structure extends out of the support surface; the limiting structure releases the limitation on the fetal membrane unit when the limiting structure retracts into the support surface;

[0019] Alternatively, the limiting structure can be detachably mounted on the supporting surface, and the limiting structure can limit the fetal membrane unit when installed on the supporting surface; the limiting structure releases the limitation on the fetal membrane unit when being removed from the supporting surface.

[0020] By adopting the above technical solution, the limiting structure can limit the fetal membrane unit.

[0021] In one embodiment, the rolled fetal membrane device further comprises a universal fetal membrane base, and a plurality of the fetal membrane support units are detachably mounted on the universal fetal membrane base.

[0022] By adopting the above technical solution, the applicability of the rolled fetal membrane device is further improved.

[0023] In one embodiment, the tire membrane rolling device further includes a positioning unit disposed on the tire membrane universal base, and the positioning unit is used to position a workpiece to be rolled.

[0024] By adopting the above technical solution, the positioning unit is used to position the workpiece to be rolled, and prevents the workpiece from shifting during the rolling process.

[0025] In one embodiment, the plurality of fetal membrane units are of an integrated structure or a split structure; when the fetal membrane unit is of a split structure, two adjacent fetal membrane units are separated by a preset gap, and the preset gap ranges from 0 mm to 2 mm.

[0026] By adopting the above technical solution, the split design reduces the manufacturing cost of the fetal membrane unit.

[0027] In one embodiment, the rolled fetal membrane device further comprises a plurality of positioning structures, wherein the positioning structures are arranged on the supporting surface and are used to position the fetal membrane unit.

[0028] By adopting the above technical solution, the positioning structure reduces the possibility of displacement of the fetal membrane unit and improves the stability of the fetal membrane unit.

[0029] In the second aspect, a vehicle production system is provided, comprising a workpiece conveying device and the above-mentioned hemming membrane device, wherein the hemming membrane device is used to dock with the workpiece conveying device, the workpiece conveying device is used to convey the workpiece to the hemming membrane device, and the hemming membrane device is used for hemming operations.

[0030] By adopting the above technical solution, on the basis of having the advantages of the rolled tire membrane device of the above embodiment, the vehicle production system of this embodiment also has the advantage of being applicable to workpiece processing of different models and having strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a three-dimensional structural diagram of the rolled fetal membrane device provided in an embodiment of the utility model.

[0033] Figure 2 It is an exploded view of the rolled fetal membrane device provided in an embodiment of the utility model.

[0034] Figure 3 yes Figure 1Magnified view of point “A” in the figure.

[0035] Figure 4 yes Figure 2 Magnified view of point “B” in the figure.

[0036] Figure 5 It is a three-dimensional structural diagram from another perspective of the rolled fetal membrane device provided in an embodiment of the utility model.

[0037] The reference numerals in the figures are:

[0038] 100. Rolling membrane device;

[0039] 1. Fetal membrane support assembly; 2. Fetal membrane assembly; 3. Fetal membrane universal base; 4. Positioning unit; 5. Positioning structure;

[0040] 11. fetal membrane support unit; 12. support surface; 13. first detachable connection structure; 14. limiting structure; 21. fetal membrane unit; 22. second detachable connection structure. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate that a device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The following is a more detailed description of the specific implementation of the present utility model in conjunction with specific embodiments:

[0045] like Figure 1 and Figure 2 As shown, a roll edge membrane device 100 provided by an embodiment of the utility model is applied to the roll edge process of a vehicle. The application of the roll edge membrane device 100 is not limited to battery-swap vehicles, plug-in vehicles, plug-in hybrid vehicles or oil vehicles; in this embodiment, the roll edge process refers to the roll edge of a vehicle workpiece such as a door cover, a front cover or a rear cover, and the edge of the workpiece is made smoother and more beautiful by curling and pressing the part to be rolled of the workpiece (such as the edge of the workpiece), and the structural strength and safety performance are improved; in the embodiment, the roll edge membrane device 100 is used to carry the workpiece and support the part to be rolled of the workpiece, so that the part to be rolled can be rolled; the roll edge membrane device 100 of this embodiment enhances the versatility of multiple components, so that the roll edge membrane device 100 has the advantages of high flexibility, light weight and short development cycle; the following is an explanation through specific implementation methods:

[0046] Please also read Figure 3 and Figure 4 The rolled fetal membrane device 100 of this embodiment includes a fetal membrane support component 1 and a fetal membrane component 2.

[0047] The fetal membrane support assembly 1 includes a plurality of fetal membrane support units 11, each of which is provided with a support surface 12, and the plurality of support surfaces 12 are used to be sequentially arranged along the portion of the workpiece to be rolled, and a first detachable connection structure 13 is provided on the support surface 12;

[0048] The fetal membrane assembly 2 includes multiple fetal membrane units 21, at least one fetal membrane unit 21 is arranged on each supporting surface 12, and multiple fetal membrane units 21 are arranged in sequence along the part to be rolled of the workpiece. The fetal membrane unit 21 is provided with a second detachable connecting structure 22 detachably connected to the first detachable connecting structure 13.

[0049] Here, it can be understood that the fetal membrane support component 1 refers to a component used to support the fetal membrane component 2; specifically, the fetal membrane support component 1 includes a plurality of fetal membrane support units 11, and the plurality of fetal membrane support units 11 are used to be arranged to adapt to the shape of the workpiece, so that each part or most of the workpiece can be supported by the fetal membrane support unit 11; the fetal membrane support unit 11 is provided with a support surface 12, and the support surface 12 refers to the surface used to support the workpiece, and the support surfaces 12 of the plurality of fetal membrane support units 11 are used to be arranged in sequence along the part to be rolled edge of the workpiece, so that the support surface 12 can correspond to the part to be rolled edge of the workpiece; a first detachable connecting structure 13 is provided on the supporting surface 12, and the first detachable connecting structure 13 is used to be detachably connected to the fetal membrane component 2, so as to realize the detachability of the fetal membrane component 2 on the supporting surface 12;

[0050] The membrane assembly 2 refers to a component that is used to directly contact the part of the workpiece to be rolled and play a supporting role; the membrane assembly 2 includes a plurality of membrane units 21, and the membrane unit 21 can be a profiling block, which is made by simulating the target shape of the workpiece rolling. When the part of the workpiece to be rolled is fixed to the membrane unit 21, the rolling device applies pressure to the part to be rolled, so that the part to be rolled is pressed to form the target shape, thereby completing the rolling operation; each support surface 12 is used to support at least one membrane unit 21, that is, one support surface 12 can support one or more membrane units 21. During the hemming operations on different types of workpieces, since the fetal membrane support component 1 is a universal component, the fetal membrane component 2 needs to be replaced to adapt to different workpieces. Therefore, during the process of replacing the fetal membrane component 2, a situation may arise where one support surface 12 needs to support multiple fetal membrane units 21; the fetal membrane unit 21 is provided with a second detachable connecting structure 22, and the second detachable connecting structure 22 is used to be detachably connected to the first detachable connecting structure 13, that is, the fetal membrane unit 21 is detachably connected to the support surface 12 via the second detachable connecting structure 22 and the first detachable connecting structure 13.

[0051] The working principle of the rolled fetal membrane device 100 provided in this embodiment is as follows:

[0052] Provide a target shape for the rolled edge portion of the workpiece, and make a fetal membrane unit 21 that simulates the target shape. At the same time, the fetal membrane unit 21 is fixed to the support surface 12 of the corresponding fetal membrane support unit 11 through the cooperation of the first detachable connecting structure 13 and the second detachable connecting structure 22. In this way, multiple fetal membrane units 21 are arranged in sequence along the part to be rolled edge of the workpiece, and the workpiece can be fixed on the fetal membrane assembly 2 so that the part to be rolled edge corresponds one by one to the multiple fetal membrane units 21, which is convenient for the rolling edge operation of the workpiece.

[0053] By adopting the above technical solution:

[0054] First, in the hemming operation of workpieces of different models, the operator selects fetal membrane units 21 of different shapes to form the fetal membrane assembly 2 according to the actual shape of the workpiece, that is, multiple groups of fetal membrane assemblies 2 can share one fetal membrane support assembly 1, thus enhancing the versatility and reusability of the fetal membrane support assembly 1, so that the hemming fetal membrane device 100 has the advantage of high flexibility;

[0055] Secondly, the fetal membrane support component 1 and the fetal membrane component 2 are detachably connected, which reduces the weight of any component, so that the rolled fetal membrane device 100 has the advantage of being lightweight;

[0056] Finally, the fetal membrane support component 1 can be applied to multiple groups of fetal membrane components 2. For the rolling operations of workpieces of multiple models, the production needs can be met without too many types of fetal membrane support components 1, which reduces the development cycle and development cost of the rolling fetal membrane device 100.

[0057] In one embodiment, one of the first detachable connection structure 13 and the second detachable connection structure 22 is a through-slot structure, and the other of the first detachable connection structure 13 and the second detachable connection structure 22 is a boss structure, and the boss structure is inserted into the through-slot structure.

[0058] Here, it can be understood that the through groove structure and the boss structure realize the detachable connection between the first detachable connecting structure 13 and the second detachable connecting structure 22 through concave-convex cooperation; in this embodiment, the surface of the fetal membrane unit 21 connected to the support surface 12 is provided with a through groove structure, and the support surface 12 is provided with a boss structure.

[0059] By adopting the above technical solution, the through groove structure and the boss structure can easily realize the detachable connection between the fetal membrane unit 21 and the fetal membrane support unit 11, and at the same time make it convenient to disassemble and assemble the fetal membrane unit 21 from the fetal membrane support unit 11.

[0060] In one embodiment, the through slot structure is a T-slot, a dovetail slot, a square slot or a circular slot; the boss structure is adapted to the through slot structure, and the boss structure corresponding to the through slot structure is a T-shaped boss, a dovetail boss, a square boss or a circular boss.

[0061] Here, it can be understood that the shape and size of the through-slot structure match the shape and size of the boss structure, so that the boss structure can just be inserted into the through-slot structure.

[0062] Specifically, the shapes of the through-slot structure and the boss structure are T-shaped, dovetail-shaped, square or circular in cross section; the through-slot structure and the boss structure of the above shapes are easy to match.

[0063] By adopting the above technical solution, the difficulty of matching the through groove structure and the boss structure is reduced, so that the fetal membrane unit 21 and the fetal membrane support unit 11 are easy to disassemble and assemble.

[0064] In other embodiments, the fetal membrane unit 21 and the fetal membrane support unit 11 are detachably connected by threaded connection.

[0065] In one embodiment, a limiting structure 14 is further provided on the support surface 12 . The limiting structure 14 is located in the disassembly direction X of the fetal membrane unit 21 . The limiting structure 14 is used to limit the fetal membrane unit 21 .

[0066] Here, it can be understood that a limiting structure 14 is provided on the supporting surface 12 , and the limiting structure 14 is located in the disassembly direction X of the fetal membrane unit 21 , thereby limiting the fetal membrane unit 21 from being disassembled from the fetal membrane supporting unit 11 .

[0067] By adopting the above technical solution, the stability of the fetal membrane unit 21 when fixed to the fetal membrane supporting unit 11 is improved.

[0068] In one embodiment, the limiting structure 14 is retractably arranged on the support surface 12, and the limiting structure 14 can limit the fetal membrane unit 21 when it extends out of the support surface 12; the limiting structure 14 releases the limitation on the fetal membrane unit 21 when it retracts into the support surface 12; here, it can be understood that the limiting structure 14 is a telescopic structure. In this embodiment, the limiting structure 14 is a telescopic pin, which is elastically connected to the support surface 12. During the installation of the fetal membrane unit 21 on the support surface 12, the fetal membrane unit 21 can apply pressure on the telescopic pin so that the telescopic pin retracts into the support surface 12. After the installation of the fetal membrane unit 21 is completed, the pressure applied to the telescopic pin is cancelled, and the telescopic pin extends out of the support surface 12 and is used to limit the fetal membrane unit 21.

[0069] Alternatively, the limiting structure 14 is detachably mounted on the support surface 12, and the limiting structure 14 can limit the fetal membrane unit 21 when it is mounted on the support surface 12; the limiting structure 14 releases the limit on the fetal membrane unit 21 when it is removed from the support surface 12. Here, it can be understood that the limiting structure 14 is a detachable structure. In this embodiment, the limiting structure 14 is a detachable pin, and the detachable pin is detachably connected to the support surface 12. Before the fetal membrane unit 21 is installed on the support surface 12, the operator removes the detachable pin, and after the fetal membrane unit 21 is installed, the detachable pin is installed on the support surface 12. The detachable pin extends out of the support surface 12 and is used to limit the fetal membrane unit 21.

[0070] By adopting the above technical solution, the limiting structure 14 can limit the fetal membrane unit 21.

[0071] like Figure 5 As shown, in one embodiment, the rolled fetal membrane device 100 further includes a universal fetal membrane base 3, and a plurality of fetal membrane support units 11 are detachably mounted on the universal fetal membrane base 3.

[0072] Here, it can be understood that the universal base 3 of the fetal membrane can be installed on the assembly line in the workshop and docked with the universal mounting components on the assembly line, and multiple fetal membrane support units 11 can be detachably installed on the universal base 3 of the fetal membrane.

[0073] Specifically, the universal base 3 of the fetal membrane is used to support the fetal membrane support component 1 and the fetal membrane component 2, and the universal base 3 of the fetal membrane is universal and can adapt to different workshop assembly lines, which is conducive to the application of the fetal membrane support component 1 and the fetal membrane component 2 in the production or trial production workshops of different vehicle models.

[0074] By adopting the above technical solution, the applicability of the rolled fetal membrane device 100 is further improved.

[0075] In one embodiment, the tire membrane rolling device 100 further includes a positioning unit 4 disposed on the tire membrane universal base 3, and the positioning unit 4 is used to position the workpiece to be rolled.

[0076] Here, it can be understood that when the workpiece is placed on the fetal membrane unit 21, the positioning unit 4 is used to position the workpiece to be rolled. In this embodiment, the positioning unit 4 is a gripper positioning unit 4, which fixes the workpiece through a mechanical gripper structure or a vacuum adsorption structure to achieve positioning of the workpiece.

[0077] By adopting the above technical solution, the positioning unit 4 is used to position the workpiece to be rolled, and prevents the workpiece from shifting during the rolling process.

[0078] In one embodiment, the plurality of fetal membrane units 21 are of an integrated structure or a split structure; when the fetal membrane unit 21 is of a split structure, two adjacent fetal membrane units 21 are separated by a preset gap, and the preset gap ranges from 0 mm to 2 mm.

[0079] Here, it can be understood that the fetal membrane unit 21 can be an integrated structure or a split structure. In order to reduce production costs, multiple fetal membrane units 21 are manufactured separately, and a preset gap can be left between two adjacent fetal membrane units 21, which reduces the production accuracy of the fetal membrane units 21.

[0080] Specifically, the preset gap between two adjacent fetal membrane units 21 ranges from 0 mm to 2 mm, and preferably, the preset gap is 1 mm.

[0081] By adopting the above technical solution, the split design reduces the manufacturing cost of the fetal membrane unit 21.

[0082] In one embodiment, the rolled fetal membrane device 100 further includes a plurality of positioning structures 5 , which are disposed on the support surface 12 and are used to position the fetal membrane unit 21 .

[0083] Here, it can be understood that the positioning structure 5 is used to position the fetal membrane unit 21. In the present embodiment, the positioning structure 5 is a positioning block, and the number and position of the positioning block are determined according to the tooling design principle.

[0084] By adopting the above technical solution, the positioning structure 5 reduces the possibility of displacement of the fetal membrane unit 21 and improves the stability of the fetal membrane unit 21.

[0085] In the second aspect, a vehicle production system is provided, including a workpiece conveying device and the above-mentioned hemming membrane device 100, the hemming membrane device 100 is used to dock with the workpiece conveying device, the workpiece conveying device is used to convey the workpiece to the hemming membrane device 100, and the hemming membrane device 100 is used for hemming operations.

[0086] By adopting the above technical solution, on the basis of having the advantages of the rolled tire membrane device 100 of the above embodiment, the vehicle production system of this embodiment also has the advantage of being applicable to workpiece processing of different models and having strong applicability.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rolled fetal membrane device, characterized in that: include: A fetal membrane support assembly, comprising a plurality of fetal membrane support units, each of which is provided with a support surface, the plurality of support surfaces being used to be sequentially arranged along a portion of a workpiece to be rolled, and a first detachable connection structure being provided on the support surface; The fetal membrane assembly includes multiple fetal membrane units, at least one of which is arranged on each supporting surface, and multiple fetal membrane units are arranged in sequence along the part to be rolled of the workpiece. The fetal membrane unit is provided with a second detachable connecting structure that is detachably connected to the first detachable connecting structure.

2. The rolled fetal membrane device according to claim 1, characterized in that: One of the first detachable connection structure and the second detachable connection structure is a through-slot structure, and the other of the first detachable connection structure and the second detachable connection structure is a boss structure, and the boss structure is inserted into the through-slot structure.

3. The rolled fetal membrane device according to claim 2, characterized in that: The through-slot structure is a T-slot, a dovetail slot, a square slot or a circular slot; and the boss structure is adapted to the through-slot structure.

4. The rolled fetal membrane device according to claim 2, characterized in that: A limiting structure is also provided on the support surface. The limiting structure is located in the disassembly direction of the fetal membrane unit and is used to limit the fetal membrane unit.

5. The rolled fetal membrane device according to claim 4, characterized in that: The limiting structure is retractably arranged on the support surface, and the limiting structure can limit the fetal membrane unit when the limiting structure extends out of the support surface; the limiting structure releases the limitation on the fetal membrane unit when the limiting structure retracts into the support surface; Alternatively, the limiting structure can be detachably mounted on the supporting surface, and the limiting structure can limit the fetal membrane unit when installed on the supporting surface; the limiting structure releases the limitation on the fetal membrane unit when being removed from the supporting surface.

6. The rolled fetal membrane device according to any one of claims 1 to 5, characterized in that: The rolled fetal membrane device also includes a universal fetal membrane base, and a plurality of the fetal membrane support units are detachably mounted on the universal fetal membrane base.

7. The rolled fetal membrane device according to claim 6, characterized in that: The rolled fetal membrane device also includes a positioning unit arranged on the universal base of the fetal membrane, and the positioning unit is used to position the workpiece to be rolled.

8. The rolled fetal membrane device according to any one of claims 1 to 5, characterized in that: The plurality of fetal membrane units are of an integrated structure or a split structure; when the fetal membrane unit is of a split structure, two adjacent fetal membrane units are separated by a preset gap, and the preset gap ranges from 0 mm to 2 mm.

9. The rolled fetal membrane device according to any one of claims 1 to 5, characterized in that: The rolled fetal membrane device also includes a plurality of positioning structures, which are arranged on the support surface and are used to position the fetal membrane unit.

10. A vehicle production system, characterized in that: It comprises a workpiece conveying device and the hemming membrane device according to any one of claims 1 to 9, wherein the hemming membrane device is used to dock with the workpiece conveying device, the workpiece conveying device is used to convey the workpiece to the hemming membrane device, and the hemming membrane device is used for hemming operations.

Images