Coating-free heavy truck cab body assembly

Abstract

The invention discloses a coating-free heavy truck cab body assembly, which belongs to the technical field of automobile accessories and comprises a framework assembly made of aluminum alloy, and a skin component is arranged outside the framework assembly. The framework assembly comprises a front wall assembly, a floor assembly, a rear wall framework assembly, an air window framework assembly, a left side wall framework assembly, a right side wall framework assembly and a top cover framework assembly. The whole top cover framework assembly is of a criss-cross latticed structure, an L-shaped notch is formed in the end of the top cover framework assembly, and the L-shaped notch abuts against the inner side of the air window framework assembly, the inner side of the left side wall framework assembly and the inner side of the right side wall framework assembly respectively. The framework assembly made of aluminum alloy has the advantages of being light in weight, low in manufacturing cost, high in corrosion resistance and easy to machine, the stress capacity is optimized through the latticed structure of the top cover framework assembly, the structural stability of the whole framework assembly is improved through matching of the L-shaped notches and the inner sides of peripheral components, and the service life of the framework assembly is prolonged. And the risk that the top cover framework assembly and peripheral parts are broken due to external force collision is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile accessories, in particular to a painting-free heavy truck cab body assembly. Background Art

[0002] Car body painting refers to the process of applying paint on the treated car body (substrate surface) and drying it to form a film. Cars are widely used, have a large range of activities, and operate in a complex environment. They are often corroded by moisture, microorganisms, ultraviolet rays, and other acidic and alkaline gases and liquids, and sometimes they are damaged by grinding and scraping. After painting, the paint film (film) covering the surface of the car body can isolate the basic materials of the parts from the atmospheric environment, play a "shielding" role, and prevent rust. In addition, some coatings can also inhibit corrosion of metals. For example, phosphating primers can react with metals with the help of the chemical components inside the coating to passivate the metal surface.

[0003] The cab painting of heavy trucks is an important part of the manufacturing process, which can achieve the functions of anti-corrosion and appearance guarantee of the white body. However, the painting process is complicated, the painting cost is high, the chemical management and transportation process is difficult, the risk factor is high, and the chemicals and waste generated in the painting production process are very likely to cause harm to the human body and the surrounding environment.

[0004] The existing heavy truck cab body-in-white mostly uses steel plates or other alloy skin covering parts, which must be processed by electrophoretic coating and other processes to achieve the functional requirements of rust prevention and appearance. However, the steel plates or other alloy skeletons and skins made of the above materials will increase their own weight; currently, paint-free steel plate materials continue to appear, but they are limited by the thickness, price, material performance or appearance requirements of the plate, and have the problems of high weight, high price and difficulty in processing, resulting in poor structural stability. Summary of the invention

[0005] In order to solve the problem that the paint-free skeleton and skin in the prior art have high weight, high price and great processing difficulty, resulting in poor structural stability, the present invention provides a paint-free heavy-duty truck cab body assembly.

[0006] The present invention is achieved through the following technical solutions: A paint-free heavy-duty truck cab body assembly comprises a frame assembly made of aluminum alloy, a skin component is arranged on the outside of the frame assembly, and the frame assembly comprises a front enclosure assembly, a floor assembly, a rear enclosure frame assembly, a windshield frame assembly, a left enclosure frame assembly, a right enclosure frame assembly and a top cover frame assembly; the top cover frame assembly is in a criss-cross grid structure as a whole, and an L-shaped notch is arranged at the end of the top cover frame assembly, and the L-shaped notch is respectively abutted against the inner sides of the windshield frame assembly, the left enclosure frame assembly and the right enclosure frame assembly.

[0007] The frame assembly made of aluminum alloy has the advantages of light weight, low cost, strong corrosion resistance and easy processing. In addition, the grid structure of the top cover frame assembly optimizes the force-bearing capacity, and through the L-shaped notch and the inner side of the surrounding components, it improves the structural stability of the entire frame assembly and effectively reduces the risk of breakage of the top cover frame assembly and surrounding components due to external force collision.

[0008] A further improvement of the present invention is that L-shaped notches are provided at the lower parts of both ends of the windshield frame assembly, and the L-shaped notches are respectively engaged with the left side frame assembly and the right side frame assembly.

[0009] A further improvement of the present invention is that both the left side frame assembly and the right side frame assembly are provided with L-shaped notches that match the windshield frame assembly.

[0010] A further improvement of the present invention is that the above-mentioned left side enclosure frame assembly is symmetrically structured with the right side enclosure frame assembly, and the left side enclosure frame assembly includes an A-pillar vertical beam, a side enclosure upper frame cross beam, a side enclosure lower frame cross beam and a rear vertical beam, and the side enclosure upper frame cross beam and the side enclosure lower frame cross beam are connected between the A-pillar vertical beam and the rear vertical beam.

[0011] A further improvement of the present invention is that the front enclosure assembly, floor assembly, rear enclosure frame assembly, windshield frame assembly, left enclosure frame assembly, right enclosure frame assembly and top cover frame assembly are welded to each other.

[0012] A further improvement of the present invention is that the above-mentioned skin assembly includes a left side surrounding skin, a right side surrounding skin, a rear surrounding skin and a top cover skin; the left side surrounding skin corresponds to the left side surrounding frame assembly, the right side surrounding skin corresponds to the right side surrounding frame assembly, the rear surrounding skin corresponds to the rear surrounding frame assembly, and the top cover skin corresponds to the top cover frame assembly.

[0013] A further improvement of the present invention is that the left side surrounding skin, the right side surrounding skin, the rear surrounding skin and the top cover skin are all made of glass fiber reinforced plastic.

[0014] A further improvement of the present invention is that the junction areas of the left side surrounding skin and the right side surrounding skin with the rear surrounding skin and the top cover skin are respectively reserved with mutually matching bonding flanges, and the width of the bonding flanges is 20 mm.

[0015] A further improvement of the present invention is that a 3 mm gluing gap and a 20 mm wide bonding surface are reserved in the bonding areas between the left side surrounding skin, the right side surrounding skin, the rear surrounding skin and the top cover skin and the skeleton assembly respectively.

[0016] A further improvement of the present invention is that a pre-embedded nut is respectively provided on the left side surrounding skin, the right side surrounding skin, the rear surrounding skin and the top cover skin, and a transition bracket matching the pre-embedded nut is respectively installed on the left side surrounding frame assembly, the right side surrounding frame assembly, the top cover frame assembly and the rear surrounding frame assembly, and a locking bolt matching the pre-embedded nut passes through the transition bracket.

[0017] It can be seen from the above technical scheme that the beneficial effects of the present invention are: the skeleton assembly made of aluminum alloy has the advantages of light weight, low cost, strong corrosion resistance and easy processing, and the grid structure of the top cover skeleton assembly optimizes the force-bearing capacity, and through the L-shaped notch and the inner side of the surrounding components, the structural stability of the entire skeleton assembly is improved, and the risk of breakage of the top cover skeleton assembly and the surrounding components due to external force collision is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the cab body assembly of the present invention.

[0020] Figure 2 It is an exploded view of the cab body assembly structure of the present invention.

[0021] Figure 3 It is an exploded view of the skeleton assembly structure of the present invention.

[0022] Figure 4 It is a staggered structure diagram of the present invention.

[0023] Figure 5 This is a layout diagram of the lower portion of the A-pillar upright beam of the present invention.

[0024] Figure 6 It is a schematic diagram of the layout structure of the top cover frame assembly of the present invention.

[0025] Figure 7 for Figure 6 Schematic diagram of the connection point between the windshield frame assembly and the top cover frame assembly at D in the middle.

[0026] Figure 8 for Figure 6 Schematic diagram of the connection point between the top cover frame assembly and the left side panel frame assembly at E in the middle.

[0027] Fig. 9 This is a schematic diagram of the embedded bolt structure of the skin.

[0028] Fig.10 The figure is a schematic diagram of the embedded bolts and their matching.

[0029] Fig.11 This is a schematic diagram of the transition bracket structure and skin installation.

[0030] Fig.12 For the present invention Figure 1 Sectional view at AA.

[0031] Fig.13 For the present invention Figure 1 Cross-sectional view at BB in the middle.

[0032] In the attached figure: 1. cab body assembly; 2. frame assembly; 3. left side enclosure skin; 4. right side enclosure skin; 5. rear enclosure skin; 6. roof skin; 7. front enclosure assembly; 8. floor assembly; 9. rear enclosure frame assembly; 10. windshield frame assembly; 11. left side enclosure frame assembly; 12. right side enclosure frame assembly; 13. roof frame assembly; 14. A-pillar vertical beam; 15. side enclosure upper frame cross beam; 16. side enclosure lower frame cross beam; 17. transition bracket; 18. embedded bolts; 19. embedded nuts; 20. locking bolts; 21. rivets. DETAILED DESCRIPTION

[0033] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0034] like Figure 1-3 As shown, a painting-free heavy truck cab body assembly includes a frame assembly 2 made of aluminum alloy, wherein the frame assembly 2 includes a front enclosure assembly 7, a floor assembly 8, a rear enclosure frame assembly 9, a windshield frame assembly 10, a left enclosure frame assembly 11, a right enclosure frame assembly 12, and a top cover frame assembly 13; the front enclosure assembly 7, the floor assembly 8, the rear enclosure frame assembly 9, the windshield frame assembly 10, the left enclosure frame assembly 11, the right enclosure frame assembly 12, and the top cover frame assembly 13 are welded to each other. The frame assembly made of aluminum alloy has the advantages of being lightweight, low in cost, strong in corrosion resistance, and easy to process. Due to the corrosion resistance, the frame assembly 2 is free from painting.

[0035] like Figure 1-2As shown, the exterior of the frame assembly 2 is provided with a skin assembly, which includes a left side surrounding skin 3 corresponding to the left side surrounding frame assembly 11, a right side surrounding skin 4 corresponding to the right side surrounding frame assembly 12, a rear surrounding skin 5 corresponding to the rear surrounding frame assembly 9, and a top cover skin 6 corresponding to the top cover frame assembly 13. The left side surrounding skin 3, the right side surrounding skin 4, the rear surrounding skin 5, and the top cover skin 6 are all made of glass fiber reinforced plastic, ensuring the appearance effect and strength requirements of the cab.

[0036] like Figure 6 As shown, the roof frame assembly 13 is an overall grid structure that is crisscrossed; the roof frame assembly 13 includes at least two longitudinal ribs and at least three transverse ribs, and the at least two longitudinal ribs and at least three transverse ribs are arranged in a crisscross pattern; the front end of the longitudinal rib extends to the front of the transverse rib at the front end, and the rear end is connected to the transverse rib at the rear end; the two ends of the transverse rib extend to the outside of the longitudinal rib at the side. The longitudinal rib or the transverse rib is provided with an embedding opening that can accommodate the transverse rib or the vertical rib, and the longitudinal rib and the transverse rib are matched through the embedding opening and welded to each other. This helps to improve the structural strength of the overall roof frame assembly 13.

[0037] like Figure 6-8 As shown, the end of the top cover frame assembly 13 is provided with an L-shaped notch, and the L-shaped notch is respectively abutted against the inner side of the windshield frame assembly 10, the left side frame assembly 11 and the right side frame assembly 12 and then connected by welding. Specifically, the front end of the longitudinal rib beam is in an arc shape bent downward, and the two ends of the transverse rib beam are in an arc shape bent downward. The front end of the longitudinal rib beam and the two ends of the transverse rib beam are provided with an L-shaped notch, and the L-shaped notch is set close to the outermost side of the component. The L-shaped notch of the longitudinal rib beam abuts against the rear of the window sealing frame assembly 10 (as shown at D in the figure), and the L-shaped notches at both ends of the transverse rib beam abut against the inner side of the left side frame assembly 11 and the inner side of the right side frame assembly 12 (as shown at E in the figure). The grid structure of the top cover frame assembly 13 optimizes the force bearing capacity, and through the L-shaped notch, cooperates with the inner side of the surrounding components, thereby improving the structural stability of the entire frame assembly 2, and effectively reducing the risk of fracture of the top cover frame assembly 13 and the surrounding components due to external force collision.

[0038] like Figure 4-5As shown, L-shaped notches are provided at the lower parts of both ends of the windshield frame assembly 10, and the L-shaped notches are respectively engaged with the left side frame assembly 11 and the right side frame assembly 12. The upper ends of the left side frame assembly 11 and the right side frame assembly 12 are both provided with L-shaped notches that match the windshield frame assembly 10, and two adjacent L-shaped notches are matched and connected (as shown at C in the figure). The left side frame assembly 11 and the right side frame assembly 12 are symmetrical structures. The left side frame assembly 11 includes an A-pillar vertical beam 14, a side frame upper frame cross beam 15, a side frame lower frame cross beam 16 and a rear vertical beam. The side frame upper frame cross beam 15 and the side frame lower frame cross beam 16 are connected between the A-pillar vertical beam 14 and the rear vertical beam. The upper part of the A-pillar cross beam is provided with an L-shaped notch that matches the windshield frame assembly 10 (as shown at C in the figure).

[0039] like Figure 12-13 As shown, the left and right surrounding skins 3 and 4 are respectively provided with mating flanges for mutual cooperation at the junction with the rear surrounding skin 5 and the top cover skin 6, and the width of the bonding flanges is 20 mm. The left and right surrounding skins 3, 4, rear surrounding skins 5 and top cover skins 6 are respectively provided with a 3 mm gluing gap and a 20 mm wide bonding surface at the mating area with the skeleton assembly 2. The strength of the skin covering parts is enhanced and the cab sealing is better.

[0040] like Fig. 9 and 11 As shown, an embedded nut 19 is respectively provided on the left side surrounding skin 3, the right side surrounding skin 4, the rear side surrounding skin 5 and the top cover skin 6, and a transition bracket 17 matched with the embedded nut 19 is respectively installed on the left side surrounding frame assembly 11, the right side surrounding frame assembly 12, the top cover frame assembly 13 and the rear side surrounding frame assembly 9, and a locking bolt 20 matched with the embedded nut 19 runs through the transition bracket 17. The transition bracket 17 is an integrally bent structure, one side of the transition bracket 17 is installed on the frame by a rivet 21, and a slot matched with the embedded nut 19 is opened on the other side to facilitate the adaptive adjustment installation of the locking bolt 20 and the embedded nut 19.

[0041] like Fig.10 As shown, the left side surrounding skin 3, the right side surrounding skin 4, the rear surrounding skin 5 and the top cover skin 6 are respectively provided with two embedded bolts 18, and the left side surrounding frame assembly 11, the right side surrounding frame assembly 12, the top cover frame assembly 13 and the rear surrounding frame assembly 9 are respectively installed with two through holes matching with the two embedded bolts 18, and the two through holes on the same component are one circular hole and the other slotted hole, so as to facilitate the accurate positioning operation of pre-installing the skin on the frame, realize assembly positioning and guiding, improve installation accuracy and reduce work intensity.

[0042] The paint-free heavy-duty truck cab body assembly described in the present invention has an aluminum alloy skeleton assembly which has the advantages of light weight, low cost, strong corrosion resistance and easy processing. The grid structure of the top cover skeleton assembly optimizes the force-bearing capacity, and cooperates with the inner side of the surrounding components through the L-shaped notch, thereby improving the structural stability of the entire skeleton assembly and effectively reducing the risk of fracture of the top cover skeleton assembly and the surrounding components due to external force collision.

[0043] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0044] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A paint-free heavy truck cab body assembly, comprising a frame assembly (2) made of aluminum alloy, wherein a skin component is provided on the outside of the frame assembly (2), characterized in that: The frame assembly (2) comprises a front enclosure frame assembly (7), a floor assembly (8), a rear enclosure frame assembly (9), a windshield frame assembly (10), a left enclosure frame assembly (11), a right enclosure frame assembly (12) and a top cover frame assembly (13); the top cover frame assembly (13) as a whole presents a crisscross grid-like structure, and an L-shaped notch is provided at the end of the top cover frame assembly (13), and the L-shaped notch is respectively abutted against the inner sides of the windshield frame assembly (10), the left enclosure frame assembly (11) and the right enclosure frame assembly (12).

2. The paint-free heavy truck cab body assembly according to claim 1, characterized in that: L-shaped notches are provided at the lower parts of both ends of the windshield frame assembly (10), and the L-shaped notches are respectively engaged with the left side frame assembly (11) and the right side frame assembly (12).

3. The paint-free heavy truck cab body assembly according to claim 2, characterized in that: The left side frame assembly (11) and the right side frame assembly (12) are both provided with L-shaped notches that match the windshield frame assembly (10).

4. The paint-free heavy truck cab body assembly according to claim 3 is characterized in that: The left side frame assembly (11) and the right side frame assembly (12) are symmetrical in structure. The left side frame assembly (11) comprises an A-pillar vertical beam (14), a side panel upper frame cross beam (15), a side panel lower frame cross beam (16) and a rear vertical beam. The side panel upper frame cross beam (15) and the side panel lower frame cross beam (16) are connected between the A-pillar vertical beam (14) and the rear vertical beam.

5. A paint-free heavy truck cab body assembly according to any one of claims 1 to 4, characterized in that: The front enclosure assembly (7), the floor assembly (8), the rear enclosure frame assembly (9), the windshield frame assembly (10), the left enclosure frame assembly (11), the right enclosure frame assembly (12), and the top cover frame assembly (13) are welded to one another.

6. The paint-free heavy truck cab body assembly according to claim 5, characterized in that: The skin assembly comprises a left side surrounding skin (3), a right side surrounding skin (4), a rear surrounding skin (5) and a top cover skin (6); the left side surrounding skin (3) corresponds to the left side surrounding frame assembly (11), the right side surrounding skin (4) corresponds to the right side surrounding frame assembly (12), the rear surrounding skin (5) corresponds to the rear surrounding frame assembly (9), and the top cover skin (6) corresponds to the top cover frame assembly (13).

7. The paint-free heavy truck cab body assembly according to claim 6, characterized in that: The left side surrounding skin (3), the right side surrounding skin (4), the rear surrounding skin (5) and the top cover skin (6) are all made of glass fiber reinforced plastic.

8. The paint-free heavy truck cab body assembly according to claim 7, characterized in that: The left surrounding skin (3) and the right surrounding skin (4) are respectively provided with mating flanges that match each other at the junction areas with the rear surrounding skin (5) and the top cover skin (6), and the width of the bonding flanges is 20 mm.

9. The paint-free heavy truck cab body assembly according to claim 8, characterized in that: The left side surrounding skin (3), the right side surrounding skin (4), the rear surrounding skin (5) and the top cover skin (6) are respectively provided with a 3 mm gluing gap and a 20 mm wide bonding surface in the bonding area with the skeleton assembly (2).

10. The paint-free heavy truck cab body assembly according to claim 9, characterized in that: The left side surrounding skin (3), the right side surrounding skin (4), the rear side surrounding skin (5) and the top cover skin (6) are respectively provided with an embedded nut (19); the left side surrounding frame assembly (11), the right side surrounding frame assembly (12), the top cover frame assembly (13) and the rear side surrounding frame assembly (9) are respectively provided with a transition bracket (17) matching the embedded nut (19); and the transition bracket (17) is penetrated by a locking bolt (20) matching the embedded nut (19).

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