One-piece double door knocker made of variable thickness material

Abstract

The utility model discloses an integrated double door ring of variable thickness material, comprising a pair of door rings, wherein the pair of door rings respectively comprises a front door sill beam, a lower section of an A-pillar, an upper section of an A-pillar, a rear door sill beam, a wheel opening, a C-pillar and a B-pillar, wherein the upper section of the A-pillar and the C-pillar are welded on both sides of the upper end of the B-pillar, the rear door sill beam and the front door sill beam are welded on both sides of the lower end of the B-pillar, the wheel opening is welded between the rear door sill beam and the C-pillar, the lower section of the A-pillar is welded between the upper section of the A-pillar and the front door sill beam, and a thickness distribution area is provided on the B-pillar. The utility model relates to the technical field of automobile parts manufacturing, and optimizes the thickness distribution of the door ring by adopting a variable thickness material of a B-pillar partition block, distributes more materials to an effective area, reduces redundant thickness, and realizes overall weight reduction of the integrated double door ring, and cooperates with a linear welding process to weld differential thickness plate materials, because the linear welding process is simple, the production line resources are abundant, and the welding cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to an integrated double door ring made of variable thickness materials. Background Art

[0002] With the continuous development of the automotive industry, OEMs have increasingly higher requirements for the lightweight, economical and safe performance of automotive door ring products. However, the existing products have the following problems:

[0003] 1. The material thickness distribution of the integrated double door ring has partial redundancy, and the lightweight performance is poor, which cannot meet the weight reduction requirements of the OEM;

[0004] 2. The production cost is high, especially the welding cost.

[0005] At present, door rings are mostly spot-welded, which leads to discontinuous structure at the joints. During a collision, stress concentration and local deformation are prone to occur, affecting the collision safety performance. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an integrated double door ring made of variable thickness material, which solves the problems of local redundancy and high manufacturing cost of the existing integrated double door ring.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a variable thickness material integrated double door ring, including a pair of door rings, the pair of door rings respectively include a front sill beam, a lower section of an A-pillar, an upper section of an A-pillar, a rear sill beam, a wheel opening, a C-pillar, and a B-pillar, the upper section of the A-pillar and the C-pillar are welded on both sides of the upper end of the B-pillar, the rear sill beam and the front sill beam are welded on both sides of the lower end of the B-pillar, the wheel opening is welded between the rear sill beam and the C-pillar, the lower section of the A-pillar is welded between the upper section of the A-pillar and the front sill beam, and a thickness distribution area is provided on the B-pillar.

[0008] Preferably, the front sill beam is provided with a first weld and a seventh weld between the lower section of the A-pillar and the B-pillar respectively, the B-pillar is provided with a fifth weld, a sixth weld and an eighth weld between the rear sill beam, the C-pillar and the upper section of the A-pillar respectively, the second weld is provided between the lower section of the A-pillar and the upper section of the A-pillar, and the wheel opening is provided with a third weld and a fourth weld between the rear sill beam and the C-pillar respectively.

[0009] Preferably, the thickness distribution area includes a first thickness area, a second thickness area, a third thickness area and a fourth thickness area arranged on the B-pillar, and the widths of the first thickness area, the second thickness area, the third thickness area and the fourth thickness area are respectively a first width, a second width, a third width and a fourth width.

[0010] Preferably, transition zones are respectively provided between the first thickness zone, the second thickness zone, the third thickness zone and the fourth thickness zone, and the transition zones are the first transition zone, the second transition zone and the third transition zone.

[0011] Preferably, the second thickness zone and the fourth thickness zone have the same thickness, the second width and the fourth width have the same width, and the second transition zone and the third transition zone have the same width.

[0012] Beneficial Effects

[0013] The utility model provides an integrated double door ring made of variable thickness material, which has the following beneficial effects: by adopting variable thickness material divided into zones and blocks on the B-pillar, the thickness distribution of the door ring is optimized, more material is distributed to the effective area, redundant thickness is reduced, and the overall weight reduction of the integrated double door ring is achieved; at the same time, a plurality of sheets of a pair of door rings are designed in an all-in-one symmetrical layout, which effectively improves the integration of parts, reduces the tooling and fixtures required for the production and welding processes of each sheet, saves the cost of tooling and fixtures, reduces the production processes, and improves the utilization rate of materials, thereby reducing the production cost and meeting the lightweight and cost reduction requirements of the main engine manufacturer; at the same time, the linear welding process is used to weld the differential thickness plate materials. Since the linear welding process is simple, the production line resources are abundant, and the welding cost is low, the welding cost of the integrated double door ring can be reduced; such an integrated double door ring product can achieve a continuous structure of the plate material, reduce the distribution of welds, and thus improve safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model.

[0015] Figure 2 It is a schematic diagram of the welding process of the utility model.

[0016] Figure 3 Schematic diagram of the thickness distribution of the B-pillar of the utility model.

[0017] In the figure:

[0018] A1, front door sill beam; A2, lower section of A-pillar; A3, upper section of A-pillar; A4, rear door sill beam; A5, wheel opening; A6, C-pillar; A7, B-pillar;

[0019] B1, first width; B2, second width; B3, third width; B4, fourth width;

[0020] L1, first weld; L2, second weld; L3, third weld; L4, fourth weld; L5, fifth weld; L6, sixth weld; L7, seventh weld; L8, eighth weld;

[0021] T1, first thickness zone; T2, second thickness zone; T3, third thickness zone; T4, fourth thickness zone;

[0022] C1, first transition zone; C2, second transition zone; C3, third transition zone;

[0023] X. Transition zone. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 The utility model provides a technical solution: a variable thickness material integrated double door ring, including a pair of door rings, the pair of door rings respectively include a front door sill beam A1, an A-pillar lower section A2, an A-pillar upper section A3, a rear door sill beam A4, a wheel opening A5, a C-pillar A6, and a B-pillar A7, the A-pillar upper section A3 and the C-pillar A6 are welded on both sides of the upper end of the B-pillar A7, the rear door sill beam A4 and the front door sill beam A1 are welded on both sides of the lower end of the B-pillar A7, the wheel opening A5 is welded between the rear door sill beam A4 and the C-pillar A6, the A-pillar lower section A2 is welded on the A-pillar upper section A 3 and the front door sill beam A1, a thickness distribution area is provided on the B pillar A7; the front door sill beam A1, the lower section of the A pillar A2, the upper section of the A pillar A3, the rear door sill beam A4, the wheel opening A5, the C pillar A6 and the B pillar A7 are made of two materials, namely, high-strength steel containing aluminum-silicon coating and high-strength steel without aluminum-silicon coating, and both materials can be directly subjected to the linear welding process; after the high-strength steel containing aluminum-silicon coating is subjected to variable thickness flexible rolling, the sheet is stretched, the coating becomes thinner, and the aluminum content per unit area is reduced, thereby meeting the aluminum content requirement in the linear welding process, and therefore the aluminum-silicon coating need not be peeled off.

[0026] Furthermore, a first weld L1 and a seventh weld L7 are respectively provided between the front sill beam A1 and the lower section A2 of the A-pillar and the B-pillar A7, a fifth weld L5, a sixth weld L6 and an eighth weld L8 are respectively provided between the B-pillar A7 and the rear sill beam A4, the C-pillar A6 and the upper section A3 of the A-pillar, a second weld L2 is provided between the lower section A2 of the A-pillar and the upper section A3 of the A-pillar, and a third weld L3 and a fourth weld L4 are respectively provided between the wheel opening A5 and the rear sill beam A4 and the C-pillar A6; L1, the first weld; L2, the second weld; L3, the third weld; L4, the fourth weld; L5, the fifth weld; L6, the sixth weld; L7, the seventh weld; L8, the eighth weld are all welded by a linear welding machine, with a simple process, abundant production line resources, and low welding cost. The use steps and welding method of the linear welding machine belong to common technical knowledge, so there is no need to describe the welding process in detail.

[0027] Furthermore, the thickness distribution area includes a first thickness area T1, a second thickness area T2, a third thickness area T3 and a fourth thickness area T4 arranged on the B-pillar A7, and the widths of the first thickness area T1, the second thickness area T2, the third thickness area T3 and the fourth thickness area T4 are respectively a first width B1, a second width B2, a third width B3 and a fourth width B4.

[0028] Furthermore, transition zones X are respectively provided between the first thickness zone T1 , the second thickness zone T2 , the third thickness zone T3 and the fourth thickness zone T4 , and the transition zones X are the first transition zone C1 , the second transition zone C2 and the third transition zone C3 .

[0029] Further, the second thickness zone T2 and the fourth thickness zone T4 have the same thickness, the second width B2 and the fourth width B4 have the same width, and the second transition zone C2 and the third transition zone C3 have the same width.

[0030] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0031] Embodiment: During production, firstly, the front sill beam A1 is welded to the side wall at the lower end of the A-pillar lower section A2 to form A12, the lower end side wall of the wheel opening A5 and the side wall of the rear sill beam A4 are welded together to form A45, then the A-pillar upper section A3 is welded to the side wall at the upper end of the A-pillar lower section A2 to form A13, the C-pillar A6 is welded to the upper end of the wheel opening A5 to form A46, then the C-pillar A6 and the wheel opening A5 are welded to the side walls of the first thickness zone T1 and the second thickness zone T2 of the B-pillar A7, and finally the A-pillar upper section A3 and the front sill beam A1 are welded to the other side wall of the first thickness zone T1 and the second thickness zone T2 of the B-pillar A7.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable thickness material integrated double door knocker, comprising a pair of door knockers, characterized in that: A pair of door knockers respectively comprises a front sill beam (A1), a lower section of an A-pillar (A2), an upper section of an A-pillar (A3), a rear sill beam (A4), a wheel opening (A5), a C-pillar (A6), and a B-pillar (A7); the upper section of the A-pillar (A3) and the C-pillar (A6) are welded to both sides of the upper end of the B-pillar (A7); the rear sill beam (A4) and the front sill beam (A1) are welded to both sides of the lower end of the B-pillar (A7); the wheel opening (A5) is welded between the rear sill beam (A4) and the C-pillar (A6); the lower section of the A-pillar (A2) is welded between the upper section of the A-pillar (A3) and the front sill beam (A1); and a thickness distribution area is provided on the B-pillar (A7).

2. The variable thickness material integrated double door knocker according to claim 1, characterized in that: A first weld (L1) and a seventh weld (L7) are respectively arranged between the front sill beam (A1) and the lower section of the A-pillar (A2) and the B-pillar (A7); a fifth weld (L5), a sixth weld (L6) and an eighth weld (L8) are respectively arranged between the B-pillar (A7) and the rear sill beam (A4), the C-pillar (A6) and the upper section of the A-pillar (A3); a second weld (L2) is arranged between the lower section of the A-pillar (A2) and the upper section of the A-pillar (A3); and a third weld (L3) and a fourth weld (L4) are respectively arranged between the wheel opening (A5) and the rear sill beam (A4) and the C-pillar (A6).

3. The variable thickness material integrated double door knocker according to claim 1, characterized in that: The thickness distribution area includes a first thickness area (T1), a second thickness area (T2), a third thickness area (T3) and a fourth thickness area (T4) arranged on the B-pillar (A7), and the widths of the first thickness area (T1), the second thickness area (T2), the third thickness area (T3) and the fourth thickness area (T4) are respectively a first width (B1), a second width (B2), a third width (B3) and a fourth width (B4).

4. The variable thickness material integrated double door knocker according to claim 3, characterized in that: Transition zones (X) are respectively provided between the first thickness zone (T1), the second thickness zone (T2), the third thickness zone (T3) and the fourth thickness zone (T4), and the transition zones (X) are the first transition zone (C1), the second transition zone (C2) and the third transition zone (C3).

5. The variable thickness material integrated double door knocker according to claim 4, characterized in that: The second thickness zone (T2) and the fourth thickness zone (T4) have the same thickness, the second width (B2) and the fourth width (B4) have the same width, and the second transition zone (C2) and the third transition zone (C3) have the same width.

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