Production line for batch production of steel-plastic vehicle doors

By adopting a door design with low-density PP plastic material and metal frame structure, combined with the production process of flame treatment and glue system, the problem of heavy doors and single appearance in the existing door production process is solved, and the doors are lightweight and diversified, meeting customers' customized needs.

CN222552409UActive Publication Date: 2025-03-04SHANDONG KINGOLD AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202323468764.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-19
Publication Date
2025-03-04
Estimated Expiration
2033-12-19

AI Technical Summary

Technical Problem

The existing automobile door production process has a heavier overall door, which is difficult to meet the lightweight requirements of the car body, and the appearance of all-steel doors is single, which cannot meet customers' needs for diversified appearance styles.

Method used

The door exterior panel is made of low-density PP plastic material, combined with the metal frame structure, and the door mass production is achieved through flame treatment and gluing system.

Benefits of technology

The doors are lightweight and diversified in appearance. The single-sided doors are weight-saving about 2.5kg, and the appearance colors are diversified to meet customer customization needs and improve production efficiency and cost-effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a production line for batch production of steel-plastic automobile doors, a flame treatment system comprises a first main control cabinet, a flame control cabinet, a first robot control cabinet, a blowtorch robot, a left automobile door outer plate tool table, a right automobile door outer plate tool table and a back door outer plate / spoiler tool table; the gluing system comprises a second main control cabinet, a second robot control cabinet, a side door carrying robot, a rear door carrying robot, a left vehicle door upper / lower tool table, a right vehicle door upper / lower tool table, a reserved tool table, a back door upper / lower tool table, a heating fan and a glue supply system. The device has the advantages of being easy, safe and efficient to operate by staff, and programmed operation can be achieved after simple training; and compared with an all-steel vehicle door, the weight is reduced by 13%-15%, and the light weight effect is remarkable. The production requirements of different vehicle types are met by replacing the outer plate tool table of the flame treatment system and the upper / lower tool table of the gluing system.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a production line for batch producing steel-plastic vehicle doors. Background Art

[0002] The existing production process of side doors and back doors mainly uses the hemming process to combine the inner and outer panels of the door. The hemming process refers to the method of connecting two sheet metal parts by wrapping the folded edge of one part around the periphery of another part when assembling them. In order to prevent water, moisture, foreign matter, etc. from entering the gap after the hemming and causing rust, and to prevent the misalignment of the plates, it is also necessary to apply hemming glue at the pressing point of the inner and outer panels. This production process has the problem that the door is heavy as a whole, which is difficult to meet the requirements of lightweight body; the all-steel door is electrophoretically painted together with the body, and the door color is the same as the body color, which cannot meet customers' pursuit of diversified appearance styles.

[0003] In response to the above-mentioned needs of lightweight and diversified car doors, a low-carbon lightweight steel-plastic door technology solution is studied. The door outer panel is made of low-density PP plastic material, and the density of PP plastic is only 1 / 7 of that of steel. Under the condition of ensuring the same performance, the same component can reduce weight by 40% to 50%. The inner panel frame is designed as a metal frame structure. With the emergence of composite material doors, the inner and outer panels of the door are mostly connected by bonding the door outer panel to strengthen the plate, which is fixed by fasteners and buckles or the outer panel is directly fixed to the metal of the inner door panel. This manufacturing technology has the problems of slow production cycle, high cost, many processes and complex structural coordination. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a production line for mass producing steel-plastic vehicle doors.

[0005] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0006] A production line for mass-producing steel-plastic vehicle doors, comprising:

[0007] Flame treatment system, used to flame treat the left door outer panel, rear door outer panel, spoiler, and right door outer panel;

[0008] It includes: a first main control cabinet, a flame control cabinet, a first robot control cabinet, a blowtorch robot, a left door outer panel tooling station located on the left side of the blowtorch robot, a right door outer panel tooling station located on the right side of the blowtorch robot, and a rear door outer panel / spoiler tooling station located on the rear side of the blowtorch robot;

[0009] The gluing system is located at the rear side of the flame treatment system and is used to glue and press the door panels after flame treatment to form a door assembly;

[0010] It includes: a second main control cabinet, a second robot control cabinet, a side door handling robot and a rear door handling robot arranged side by side, a left door upper / lower workbench located on the left side of the side door handling robot and arranged front and back, a right door upper / lower workbench located on the right side of the rear door handling robot and arranged front and back, a reserved workbench located on the right side of the rear door handling robot and arranged front and back, a rear door upper / lower workbench, a heating fan located on the right side of the right door upper / lower workbench, and a glue supply system located on the rear side of the rear door upper / lower workbench.

[0011] Preferably, the flame treatment system further comprises a first grating / fence arranged at the periphery of the equipment.

[0012] Preferably, the gluing system further comprises a second grating / fence arranged at the periphery of the device.

[0013] Preferably, a vehicle door outer panel conveying station is provided on the gluing system, and the vehicle door outer panel conveying station faces the rear door outer panel / spoiler workbench.

[0014] Preferably, the glue supply system is connected to a rubber hose lifting cantilever, and a glue measuring and tube changing platform is provided on the rubber hose lifting cantilever.

[0015] Preferably, the total floor space of the flame treatment system and the gluing system is 8500 mm*19000 mm.

[0016] Preferably, the flame treatment system has a floor space of 4484 mm*4901 mm.

[0017] Preferably, the gluing system has a floor space of 9290 mm*7380 mm.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a production line for mass production of steel-plastic car doors, which has the advantages of easy, safe and efficient operation for employees, and can be operated in a programmed manner after simple training; the steel-plastic car doors produced by this production line have a single-side weight reduction of about 2.5kg, which is 13% to 15% lighter than all-steel car doors, and the lightweight effect is significant. At the same time, the outer panels of the plastic car doors are separately painted, and the appearance colors are diversified to meet the customization needs of customers. The production needs of different models can be achieved by replacing the outer panel tooling table of the flame treatment system and the upper / lower tooling table of the gluing system; the steel-plastic car doors can be mass-produced with a beat of up to 10JPH, which meets the production needs of most automobile OEMs, and the beat can be controlled according to the number of tooling tables and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1It is a schematic diagram of the overall layout of the utility model;

[0022] Figure 2 It is a schematic diagram of the layout of the flame treatment system of the utility model;

[0023] Figure 3 It is a schematic diagram of the layout of the gluing system of the utility model.

[0024] In the figure: 1. Flame treatment system; 11. First main control cabinet; 12. Flame control cabinet; 13. First robot control cabinet; 14. Blowtorch robot; 15. Left door outer panel workbench; 16. Right door outer panel workbench; 17. Back door outer panel / spoiler workbench; 18. First grating / fence; 2. Gluing system; 21. Second main control cabinet; 22. Second robot control cabinet; 23. Side door handling robot; 24. Back door handling robot; 25. Left door upper / lower workbench; 26. Right door upper / lower workbench; 27. Reserved workbench; 28. Back door upper / lower workbench; 29. ​​Heating fan; 210. Glue supply system; 2101. Hose lifting cantilever; 2102. Glue measuring and tube changing platform; 211. Second grating / fence; 212. Door outer panel handling area. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1 to 3 As shown, a production line for mass production of steel-plastic vehicle doors includes a flame treatment system 1 and a gluing system 2.

[0027] The flame treatment system 1 is composed of a first main control cabinet 11, a flame control cabinet 12, a first robot control cabinet 13, a blowtorch robot 14, a left door outer panel tooling station 15, a right door outer panel tooling station 16, a rear door outer panel / spoiler tooling station 17, and a first grating / fence 18.

[0028] The gluing system 2 is composed of a second main control cabinet 21, a second robot control cabinet 22, a side door handling robot 23, a rear door handling robot 24, a left door upper / lower workbench 25, a right door upper / lower workbench 26, a reserved workbench 27, a rear door upper / lower workbench 28, a heating fan 29, a glue supply system 210, and a second grating / fence 211.

[0029] The gluing system 2 is provided with a door outer panel conveying station 212, and the manual transportation path of the products processed by the flame treatment system 1 is as straight as possible close to the door outer panel conveying station 212. In the present embodiment, the door outer panel conveying station 212 faces the rear door outer panel / spoiler workbench 17.

[0030] Furthermore, the first main control cabinet 11 is used for overall control of the flame treatment system 1; the flame control cabinet 12 is used for controlling the flame in the flame treatment; the first robot control cabinet 13 is used for controlling the torch robot 14. The second main control cabinet 21 is used for overall control of the gluing system 2; the second robot control cabinet 22 is used for controlling the side door handling robot 23 and the rear door handling robot 24.

[0031] The blowtorch robot 14 is used to process the plastic outer panel of the vehicle door; the side door handling robot 23 and the rear door handling robot 24 are used to carry the corresponding vehicle door outer panel that has been flame-treated to the corresponding vehicle door outer panel workbench.

[0032] The left door upper / lower workbench 25, the right door upper / lower workbench 26, the reserved workbench 27, and the tailgate upper / lower workbench 28 all include an upper workbench and a lower workbench, wherein the upper workbench is used to place the corresponding door outer panel, and the lower workbench is used to place the corresponding frame assembly or the corresponding inner panel.

[0033] The heating fan 29 is used for producing and transporting heat energy for the lower tooling in the gluing system; the first grating / fence 18 and the second grating / fence 211 are used to ensure the safety of personnel. It is not necessary to set up fences in the area where entry is required, but gratings are set up in safe or dangerous places according to the production progress.

[0034] The glue supply system 210 includes a glue supply control cabinet, a hose heating control cabinet, a glue shaker, a glue pump, a hose lifting cantilever 2101, a glue measuring and hose changing platform 2102, and a constant temperature room. It is used to mix glue and transport it to the door outer panel. Note that different types of glue should match the corresponding glue supply system.

[0035] The total area of ​​the entire production line is 8500mm*19000mm, of which the flame treatment system 1 occupies about 4484mm*4901mm, and the gluing system 2 occupies about 9290mm*7380mm. The size of the tire mold to be replaced according to the production product is recommended to be no larger than 1380mm*1510mm.

[0036] By replacing the upper / lower workbench that matches the size of the processing area, any steel-plastic bonding product that matches the workbench can be produced, not limited to car doors or models. The number of workbench and operators can be adjusted according to the product quantity requirements to control the production rhythm, and the rhythm is mainly affected by the number of operators. The number of personnel can be increased or decreased according to production needs, so that the rhythm is increased or decreased within 10JPH (this rhythm data is the highest rhythm of three workbench, and theoretically, it can reach up to 12JPH by adding workbench and operators).

[0037] This production line can produce in parallel:

[0038] a. Production of the first set of products:

[0039] a1. Production of left door: ① Place the left door frame on the workbench - ② The robot grabs the door outer panel and moves it to the gluing position - ③ Gluing - ④ The robot places the glued door outer panel on the door inner panel and presses and holds the pressure for a certain period of time - ⑤ Take out the product after the pressure holding is completed.

[0040] a2. Production of rear doors: Start after a1. Step 4, and follow Step 1 to start operations.

[0041] a3. Production of right door: Start after a2. starts process ④, and start operation according to process ①.

[0042] b. Production of the second set of products:

[0043] b1. Production of left door: Start after a1 completes step ⑤ and start operations according to step ①.

[0044] …

[0045] This production line can produce four different products at the same time. According to the product life cycle, the upper and lower tire molds can be replaced to produce new products without changing the overall production line.

[0046] The working principle and use process of this utility model:

[0047] 1. Place the left door outer panel on the left door outer panel workbench 15, clean the glue coating area, press the finish button, and the blowtorch robot 14 starts flame treatment.

[0048] 2. Place the rear door outer panel and spoiler on the workbench rear door outer panel / spoiler workbench 17, clean the glue coating area, press the finish button, and wait for the blowtorch robot 14 to complete step 1 before performing flame treatment.

[0049] 3. Place the right door outer panel on the right door outer panel workbench 16, clean the glue coating area, press the finish button, and wait for the blowtorch robot 14 to complete step 2 before performing flame treatment.

[0050] 4. Place the above completed products on the transfer device for storage in sequence and transport them to the gluing system 2.

[0051] 5. Press the start button, and the side door transport robot 23 takes the upper workbench of the left door upper / lower workbench 25 to the door outer panel transporting position 212.

[0052] 6. Place the left door outer panel on the upper workbench of the left door upper / lower workbench 25, and at the same time take the left door frame assembly and place it on the lower workbench of the left door upper / lower workbench 25, and clean the glue application area.

[0053] 7. Press the reset button, then press the finish button, the side door transport robot 23 transports the left door outer panel and the left door frame assembly to the hose lifting cantilever 2101 to perform the gluing procedure; after the gluing is completed, the upper and lower workbenches in the left door upper / lower workbench 25 are buckled together and pressure maintenance begins.

[0054] 8. After the pressure maintenance is completed, the side door handling robot 23 lifts the upper tooling platform of the left door upper / lower tooling platform 25 and takes out the left door assembly.

[0055] 9. Press the start button, and the rear door transport robot 24 takes the upper workbench of the upper / lower workbench 28 of the rear door to the door outer panel transporting position 212 .

[0056] 10. Place the rear door outer panel / spoiler on the upper workbench of the rear door upper / lower workbench 28, and at the same time, place the rear door inner panel on the lower workbench of the rear door upper / lower workbench 28, and clean the glue-coated area.

[0057] 11. Press the reset button, then press the finish button, the rear door transport robot 24 transports the rear door outer panel / spoiler and rear door inner panel to the hose lifting cantilever 2101 to perform the gluing procedure; after the gluing is completed, the upper and lower workbenches in the upper / lower workbench 28 of the rear door are buckled together and pressure maintenance begins.

[0058] 12. After the pressure maintenance is completed, the rear door handling robot 24 lifts the upper workbench of the upper / lower workbench 28 for the rear door and takes out the rear door assembly.

[0059] 13. Press the start button, and the side door transport robot 23 takes the upper workbench of the right door upper / lower workbench 26 to the door outer panel transporting position 212.

[0060] 14. Place the right door outer panel on the upper workbench of the right door upper / lower workbench 26, and at the same time, take the right door frame assembly and place it on the upper workbench of the right door upper / lower workbench 26, and clean the glue application area.

[0061] 15. Press the reset button, then press the finish button, the side door transport robot 23 will transport the right door outer panel and the right door frame assembly to the hose lifting cantilever 2101 to perform the gluing procedure; after the gluing is completed, the upper and lower workbenches in the right door upper / lower workbench 26 are buckled together and pressure maintenance begins.

[0062] 16. After the pressure maintenance is completed, the side door handling robot 23 lifts the upper workbench of the right door upper / lower workbench 26 and takes out the right door assembly.

[0063] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A production line for mass production of steel-plastic vehicle doors, characterized by: include: A flame treatment system (1) is used to flame treat a left door outer panel, a rear door outer panel, a spoiler, and a right door outer panel; The invention comprises: a first main control cabinet (11), a flame control cabinet (12), a first robot control cabinet (13), a blowtorch robot (14), a left vehicle door outer panel tooling platform (15) located on the left side of the blowtorch robot (14), a right vehicle door outer panel tooling platform (16) located on the right side of the blowtorch robot (14), and a rear door outer panel / spoiler tooling platform (17) located on the rear side of the blowtorch robot (14); The gluing system (2) is located at the rear side of the flame treatment system (1) and is used to glue and press the door panels after the flame treatment to form a door assembly; The invention comprises: a second main control cabinet (21), a second robot control cabinet (22), a side door handling robot (23) and a rear door handling robot (24) arranged side by side, a left door upper / lower tooling platform (25) and a right door upper / lower tooling platform (26) located on the left side of the side door handling robot (23) and arranged front and back, a reserved tooling platform (27) and a rear door upper / lower tooling platform (28) located on the right side of the rear door handling robot (24) and arranged front and back, a heating fan (29) located on the right side of the right door upper / lower tooling platform (26), and a glue supply system (210) located on the rear side of the rear door upper / lower tooling platform (28).

2. The production line for mass production of steel-plastic vehicle doors according to claim 1, characterized in that: The flame treatment system (1) also includes a first grating / fence (18) arranged on the periphery of the device.

3. The production line for mass production of steel-plastic vehicle doors according to claim 1, characterized in that: The gluing system (2) also includes a second grating / fence (211) arranged on the periphery of the device.

4. The production line for mass production of steel-plastic vehicle doors according to claim 1, characterized in that: The gluing system (2) is provided with a vehicle door outer panel transporting position (212), and the vehicle door outer panel transporting position (212) faces the rear door outer panel / spoiler tooling platform (17).

5. The production line for mass production of steel-plastic vehicle doors according to claim 1, characterized in that: The glue supply system (210) is connected to a glue hose lifting cantilever (2101), and a glue measuring and tube changing platform (2102) is provided on the glue hose lifting cantilever (2101).

6. The production line for mass production of steel-plastic vehicle doors according to claim 1, characterized in that: The total floor space occupied by the flame treatment system (1) and the gluing system (2) is 8500 mm*19000 mm.

7. The production line for mass production of steel-plastic vehicle doors according to claim 6, characterized in that: The flame treatment system (1) has a floor space of 4484 mm*4901 mm.

8. The production line for mass production of steel-plastic vehicle doors according to claim 6, characterized in that: The gluing system (2) has a floor space of 9290 mm*7380 mm.