A support structure for a combined coating of a cargo box component
Patent Information
- Application Number
- CN202522283669.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-29
AI Technical Summary
但是该电泳支架只能支持电泳工艺，还需要额外设计制作一套喷漆支架，两套支架占用场地大
[0011]本实用新型针对货箱部件提供支撑结构，实现仅需1个支撑结构即可满足货箱部件组合涂装（含电泳、打胶、喷漆）的功能，节约支撑架数量，降低成本。具有结构简单，不易积漆，提高涂装质量；强度高，不易变形等优点。
Smart Images
Figure CN224778327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing, specifically to a support structure for the combined painting of cargo box components. Background Technology
[0002] The development of lightweighting in the automotive industry has driven the rapid advancement of new materials. SMC (Sheet Molding Compound) is a composite material composed of unsaturated polyester resin, glass fiber, fillers, and additives. It possesses properties such as lightweight, high strength, corrosion resistance, and electrical insulation, and is widely used in the automotive industry. SMC cargo boxes are a prime example; they not only help reduce weight but also minimize most molding processes such as welding, cutting, and assembly. Compared to metal cargo boxes, SMC cargo boxes offer comparable mechanical properties but are lighter and more environmentally friendly. They are manufactured using a single sheet molding process, simplifying the manufacturing process and allowing for the creation of more complex shapes.
[0003] The SMC cargo box is assembled from the SMC cargo bed and other cargo box components. These other components include the left side panel, the right side panel, and the tailgate assembly, all of which are made of metal and require electrophoresis, adhesive application, and painting processes.
[0004] CN116651658A proposes a paint spraying bracket for automotive parts. This bracket facilitates the installation of parts, saves time and labor, and improves installation efficiency. However, the bracket supports manual painting of the parts and does not support robotic painting; the structural design is complex and the manufacturing cost is high; it also requires the design and manufacture of an additional electrophoresis bracket, and the two brackets occupy a large amount of space.
[0005] CN220907694U proposes an electrophoresis frame for automotive component painting processes. This frame can be adaptively adjusted according to the structure and size of different automotive components, making it suitable for most vehicle models. This improves the scope and utilization rate of the electrophoresis frame, eliminating the need for repeated production of different models and saving significant manpower and material resources, while also meeting environmental and renewable requirements. However, this frame only supports the electrophoresis process and requires an additional paint spraying frame to be designed and manufactured, resulting in a large footprint for both sets of frames.
[0006] The existing body component painting support structure (1) requires the design and manufacture of two sets of support structures, one for electrophoresis of the component and the other for applying glue and painting. The component needs to be disassembled and reassembled multiple times during the process, which can easily cause sheet metal damage and affect the painting quality. In addition, the number of support frames is large, occupying a large area and making it inconvenient for efficient management. (2) It can only support manual painting and cannot support automatic painting by robots, resulting in poor paint consistency. Utility Model Content
[0007] To solve the above problems, this utility model proposes a support structure for the combined painting of cargo box components. The cargo box components are assembled and installed on this support structure, which can achieve the following: (1) The external dimensions are consistent with ordinary metal cargo boxes. After being placed on the skid, the position relative to the skid is consistent with that of ordinary metal cargo boxes. The automatic painting program of ordinary metal cargo box robots can be directly used without developing a new program, and manual painting is avoided, thus improving the consistency of painting and ensuring the quality of painting; (2) One set of support structure can be used to realize coating processes such as electrophoresis, glue application, and painting, saving energy, occupying a small area, improving management efficiency, reducing the number of support frames, and saving costs; (3) The number of disassembly and assembly of components during the process is reduced, avoiding the risk of sheet metal collision. The specific technical solution is as follows: A support structure for painting cargo box components includes a first bottom beam, a second bottom beam, and a third bottom beam. The first and second bottom beams are fixedly connected to a painting skid. The third bottom beam supports the cargo box tailgate assembly. First brackets are symmetrically arranged on the third bottom beam and connected to the cargo box tailgate hinges via these brackets. The second and third bottom beams are connected by symmetrically arranged first support beams. A second bracket is arranged on the first support beam near the third bottom beam, connecting the cargo box tailgate with a vehicle attachment and allowing the tailgate to be fixedly opened at a certain angle for automatic robotic painting. A third bracket is arranged on the other side of the first support beam, used for positioning and installing the left and right side panels of the cargo box. The second support beam is parallel to the first support beam and connected to it via the third support beam. Four limiting blocks are symmetrically arranged on the second support beam, used to limit movement on the lifting device when hoisting the support structure. Four symmetrical locating pins are installed on the second support beam to position and install the left and right side panels of the cargo box. The third support beam is perpendicular to the first support beam and symmetrically arranged. The first reinforcing beam is perpendicular to the third support beam and parallel to it, used to strengthen the support structure and prevent deformation. Four fourth brackets are symmetrically installed on the first reinforcing beam, used to position and install the left and right side panels of the cargo box. The second reinforcing beam is diagonally braced against the first and second support beams, symmetrically arranged, to avoid interference with the production line's conveyor equipment. Extension seats are symmetrically arranged on both sides of the first bottom beam and perpendicular to it, used for the transfer of this support structure through welding and painting.
[0008] Furthermore, the limiting block is located on the upper part of the second support beam, and the positioning pin is located on the lower part of the second support beam.
[0009] Furthermore, the support structure is made of stainless steel, which can be recycled after cleaning and paint removal.
[0010] In practical use, the left and right side panels of the cargo box are installed into the locating pins, and then the left and right side panels are fixed with bolts using the third and fourth brackets, thus completing the assembly of the left and right side panels. The hinge of the tailgate assembly is installed on the first bracket, and the tailgate is connected to the tailgate assembly via the second bracket, fixing the tailgate open at a certain angle, thus completing the assembly of the tailgate assembly. After the left and right side panels and the tailgate assembly are installed on this support structure, their external dimensions are the same as a regular metal cargo box. The lifting hook is hooked onto the second support beam and confined within the limiting block. The support structure is then lifted and placed on the skid, in the same position as a regular metal cargo box. It then enters the painting workshop for painting processes, including applying adhesive and robotic painting. After the painting process is completed, the cargo box components are disassembled and placed on a transfer rack, then transferred to the final assembly workshop for assembly with the SMC cargo box.
[0011] This utility model provides a support structure for cargo box components, enabling the combined coating (including electrophoresis, glue application, and spraying) of cargo box components to be completed with only one support structure, saving on the number of support frames and reducing costs. It has advantages such as simple structure, less paint accumulation, improved coating quality, high strength, and resistance to deformation. Attached Figure Description
[0012] Figure 1 A schematic diagram of the support structure provided in an embodiment of this utility model; Figure 2 Left view of the support structure provided in an embodiment of this utility model; Figure label: 21-First bottom beam; 22-Second bottom beam; 23-Third bottom beam; 231-First bracket; 24-First support beam; 241-Second bracket; 242-Third bracket; 25-Second support beam; 251-Limiting block; 252-Positioning pin; 26-Third support beam; 27-First reinforcing beam; 271-Fourth bracket; 28-Second reinforcing beam; 29-Extension seat. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] like Figure 1-2As shown, this utility model embodiment provides a support structure for painting cargo box components, including a first bottom beam 21, a second bottom beam 22, and a third bottom beam 23. The first bottom beam 21 and the second bottom beam 22 are fixedly connected to the painting skid. The third bottom beam 23 supports the cargo box tailgate assembly, and a first bracket 231 is symmetrically arranged on the third bottom beam 23, which is connected to the cargo box tailgate hinge. The second bottom beam 22 and the third bottom beam 23 are connected by a symmetrically arranged first support beam 24. A second bracket 241 is arranged on the first support beam 24 near the third bottom beam 23, and the second bracket 241 is used to connect the cargo box tailgate accessory 14 to the cargo box tailgate, so that the cargo box tailgate is fixedly opened at a certain angle for automatic painting by the robot. A third bracket 242 is arranged on the other side of the first support beam 24, and the third bracket 242 is used to position and install the left side outer panel 12 and the right side outer panel 13 of the cargo box. The second support beam 25 is arranged parallel to the first support beam 24, and is connected to the first support beam 24 by the third support beam 26. Four limiting blocks 251 are symmetrically arranged on the second support beam 25, used to limit the movement of the support structure on the lifting device. Four positioning pins 252 are symmetrically arranged on the second support beam 25, used to position and install the left side outer panel 12 and the right side outer panel 13 of the cargo box. The third support beam 26 is perpendicular to the first support beam 24 and is symmetrically arranged. The first reinforcing beam 27 is perpendicular to the third support beam 26 and is arranged parallel to it, used to strengthen the support structure and prevent deformation. Four fourth brackets 271 are symmetrically arranged on the first reinforcing beam 27, used to position and install the left side outer panel 12 and the right side outer panel 13 of the cargo box. The second reinforcing beam 28 is diagonally braced against the first support beam 24 and the second support beam 25, symmetrically arranged, used to avoid interference with the conveyor equipment of the production line. The extension seats 29 are symmetrically arranged on both sides of the first bottom beam 21 and perpendicular to the first bottom beam 21, so as to allow this support structure to be transferred by welding and painting.
[0015] In the specific implementation process, the left side outer panel 12 and the right side outer panel 13 of the cargo box are installed in the positioning pin 252, and then the left side outer panel 12 and the right side outer panel 13 of the cargo box are fixed by bolts through the third bracket 242 and the fourth bracket 217, thus completing the assembly of the left side outer panel 12 and the right side outer panel 13 of the cargo box. The hinge of the cargo box tailgate assembly 11 is installed on the first bracket 231, and the cargo box tailgate is connected to the cargo box tailgate assembly 11 through the second bracket 241, so that the cargo box tailgate is fixedly opened at a certain angle, thus completing the assembly of the cargo box tailgate assembly 11. After the left side outer panel 12, the right side outer panel 13 of the cargo box and the cargo box tailgate assembly 11 are installed on this support structure, the external dimensions are the same as those of an ordinary metal cargo box. The lifting hook is hooked onto the second support beam 25 and confined within the limiting block 251. The support structure is then lifted and placed on a skid, in the same position as a regular metal cargo box. It then proceeds to the painting workshop for painting processes, including applying adhesive and robotic spraying. After painting, the cargo box components are disassembled and placed on a transfer rack before being transferred to the final assembly workshop for assembly with the SMC cargo box.
[0016] The support structures provided in this embodiment of the utility model are all made of stainless steel and can be reused after cleaning and paint removal.
[0017] The support structure provided in this utility model embodiment can realize the combined painting of cargo box components. Obviously, compared with the traditional technology, the above technical solution solves the problems of needing to design and manufacture two sets of support structures, one for electrophoresis of the components and the other for gluing and painting of the components. The components need to be disassembled and assembled multiple times during the process, which can easily cause sheet metal collisions and affect the painting quality; it solves the problems of having a large number of support frames, occupying a large area, and being inconvenient for efficient management; it solves the problems of only supporting manual painting and not supporting automatic painting by robots, resulting in poor painting consistency. Thus, it achieves (1) the external dimensions are consistent with ordinary metal cargo boxes. After being placed on the skid, the position relative to the skid is consistent with ordinary metal cargo boxes. The robot automatic painting program of ordinary metal cargo boxes can be directly used without developing a new program, and manual painting is avoided, improving painting consistency and ensuring painting quality. (2) One set of support structure can be used to realize electrophoresis, gluing, painting and other painting processes, saving energy, occupying a small area, improving management efficiency, reducing the number of support frames, and saving costs. (3) It reduces the number of disassembly and assembly of components during the process and avoids the risk of sheet metal collisions.
[0018] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A support structure for painting assembled cargo box components, characterized in that: It includes a first bottom beam, a second bottom beam, and a third bottom beam. A first bracket is symmetrically arranged on the third bottom beam, connecting to the tailgate hinge of the cargo box via the first bracket. The second and third bottom beams are connected by symmetrically arranged first support beams, with a second bracket on the first support beam near the third bottom beam. A third bracket is arranged on the other side of the first support beam. The second support beam is parallel to the first support beam and connects the first and second support beams via the third support beam. Four limiting blocks and four positioning pins are symmetrically arranged on the second support beam. The third support beam is perpendicular to the first support beam and symmetrically arranged. A first reinforcing beam is perpendicular to the third support beam and parallel to it. Four fourth brackets are symmetrically arranged on the first reinforcing beam, and a second reinforcing beam is diagonally braced against the first and second support beams, symmetrically arranged. Extension seats are symmetrically arranged on both sides of the first bottom beam and perpendicular to it.
2. The support structure for assembling and painting cargo box components according to claim 1, characterized in that: The limiting block is located on the upper part of the second support beam, and the positioning pin is located on the lower part of the second support beam.
3. The support structure for assembling and painting cargo box components according to claim 1, characterized in that: The support structure is made of stainless steel.