[0030] Example one:
[0031] See Figure 1 to Figure 5 , The embodiment of the present invention provides a reinforcing structure between the front wheel cover and the longitudinal beam of an automobile, including a front wheel cover assembly and a longitudinal beam. The front wheel cover assembly 1 includes a front wheel cover body 12 connected to the The front wheel house front plate 11 and the front wheel house rear plate 13 on both sides of the front wheel house body 12, and the front suspension support plate 14 installed at the upper end of the front wheel house body 12, the longitudinal beam 2 has a longitudinal beam sealing plate 21 The front panel 11 of the front wheel house includes a main plate 111 and a side plate 112. The side of the main plate 111 facing the outside of the vehicle body is the front side 1111. The side plate 112 is fixedly connected to the longitudinal beam sealing plate 21. The reinforcement structure further includes a support reinforcement board 3, the support reinforcement board 3 has adjacent first connecting edges 31 and second connecting edges 32, the first connecting edges 31 are connected to the front side 111, the The second connecting edge 32 is connected to the longitudinal beam sealing plate 21.
[0032] There are always two front wheel covers of an automobile, which are arranged symmetrically. Therefore, the above reinforcement structure is arranged symmetrically. For the convenience of description, the present invention is described with the reinforcement structure between the right front wheel cover and the side member. The present invention connects the front wheel cover front plate 11 with the side beam sealing plate 21 through the support reinforcement plate 3. The contact surface of the combination formed by the support reinforcement plate 3 and the side beam sealing plate 21 and the front wheel cover 1 is increased to disperse the front wheels. The force of the cover 1 reduces the stress concentration of the front panel 11 of the front wheel cover, and prevents the front panel 11 of the front wheel cover from cracking; the first connecting edge 31 is connected to the front side 1111 of the main board 111 on the front panel 11 of the front wheel cover , The second connecting side 32 is connected to the side beam sealing plate 21, so that the first connecting side 31, the second connecting side 32 and the outer ends of the two connecting sides form a triangular stable structure, which improves the torsional rigidity of the front structure of the vehicle body And stability.
[0033] Therefore, compared with the prior art, the present invention has the beneficial effect of improving the torsional rigidity and stability of the entire vehicle.
[0034] Specifically, the first connecting edge 31 of the supporting reinforcement plate 3 in this embodiment is connected to the front side 1111 by resistance welding; the second connecting edge 32 and the longitudinal beam sealing plate 21 are connected by resistance welding connection. The embodiment of the present invention is welded by resistance welding, and does not require filler metals such as welding wires and electrodes, and welding materials such as oxygen, acetylene, and hydrogen, and the welding cost is low. The operation is simple, easy to realize mechanization and automation, improved working conditions, high productivity, and no noise and harmful gases. In mass production, it can be integrated with other manufacturing processes on the assembly line.
[0035] In practical applications, the length of the connection between the first connecting side 31 and the front side 1111 of the main board 111 on the front wheel cover front plate 11 is 1/2 of the length of the front side 1111; the second connecting side The length of 32 connected to the longitudinal beam sealing plate 21 is 1/2 of the width of the longitudinal beam sealing plate 21. In this way, the rigidity requirements of the front structure of the vehicle body can be met, and the maximum stress of the front plate 11 of the front wheel cover can be reduced, so that the material for supporting the reinforced plate can be saved and the cost can be reduced.
[0036] Specifically, the front side 1111 has an inward fold 1112, the fold 1112 and the front side 1111 are rounded transitional connection, and the fold 1111 is close to the end of the side plate 112 and the The side plate 112 is a rounded transition connection, and the first connecting edge 31 is welded to the folded edge 1112. In the prior art, the front side 12 of the main board on the front wheel house front plate 11 has an outer flange, which is prone to stress concentration at the place where the front wheel house front plate 11 and the longitudinal beam sealing plate 21 are connected, and This is where the three rounded corners meet, which is prone to wrinkling and thinning. The embodiment of the present invention cancels the outward flanging in the prior art, makes the front side 1111 and the folded edge 1112 rounded transition, and after optimization, a rounded smooth transition is adopted to eliminate the phenomenon of thinning and wrinkling, and at the same time, it can support the reinforcing plate conveniently 3 Connection with the front plate 11 of the front wheel housing.
[0037] Specifically, a reinforcing rib 311 is provided on the surface of the supporting and reinforcing plate 3 adjacent to the first connecting edge 31. The reinforcing ribs 311 and the first connecting side 31 are arranged approximately perpendicularly. By forming a reinforcing rib structure on the supporting reinforcement plate, the first connecting side 31 is only connected to half the length of the front side 1111, and the maximum stress is reduced. The 50% effect improves the torsional rigidity of the front structure of the car body.
[0038] Specifically, the second connecting edge 32 has a connecting plate 321 parallel to the longitudinal beam sealing plate 21, and the connecting plate 321 is welded to the longitudinal beam sealing plate 21. The connecting plate 321 can increase the contact area between the support reinforcement plate 3 and the longitudinal beam sealing plate 21, facilitate welding, and ensure structural rigidity after welding. Specifically, the connecting plate 321 is provided with reinforcing ribs 322. The reinforcing ribs 322 can strengthen the torsional rigidity between the supporting reinforcing plate 3 and the longitudinal beam sealing plate 21. In turn, the torsional stiffness of the front structure of the vehicle body is improved.
[0039] Further, see Figure 6 to Figure 9 The reinforcement structure further includes a front fender 4 connected to the front wheel cover assembly 1, the front fender 4 is a circular arc surface 41 adjacent to the longitudinal beam sealing plate 21, and the supporting reinforcement plate 3 has A circular arc plate 33 matching the circular arc surface 41, and the circular arc surface 41 is fixedly connected to the circular arc plate 33. See Image 6 with Figure 8 In the prior art, the front fender 5 has a protruding portion 51 at a position adjacent to the longitudinal beam sealing plate 21. The back of the protruding portion 51 is a half enclosed space 52, and the protruding portion 51 is provided with a longitudinal beam The connecting plate 53 of the sealing plate 21 is parallel, and then the connecting plate 53 is connected with the longitudinal beam sealing plate 21 through the rubber nail 54 in the semi-closed space 52 on the back of the protrusion 51, so that the front fender 5 and the longitudinal beam 2 Connection, the rubber nail 54 is installed perpendicular to the longitudinal beam sealing plate 21. This installation method is operated in the semi-enclosed space 52 in the protrusion 51 of the front fender. The operation space is very narrow and the assembly is very inconvenient. . See Figure 7 with Picture 9 , And the present invention cancels the protruding part on the front fender, so that the part of the front fender 4 that contacts the support reinforcement plate 3 is an arc surface 41, and the support reinforcement plate 3 has an arc surface The circular arc plate 33 matched with 41, the circular arc surface 41 and the circular arc plate 33 are fixedly connected by rubber nails 42. The rubber nails 42 are installed parallel to the longitudinal beam sealing plate, which has a large operating space and reduces the difficulty of assembly. The operation time is saved, and the manufacturing materials and cost of the front fender 4 are also saved.
[0040] In practical applications, the number of welding points between the first connecting edge 31 and the front plate 11 of the front wheel housing is 4, and the number of welding points between the second connecting edge 32 and the side beam sealing plate 21 is 3, which can satisfy the support The connection rigidity of the reinforcing plate 3 and the front wheel house front plate 11 and the supporting reinforcing plate 3 and the side beam sealing plate 21. This can reduce processing costs. The solder joints are evenly distributed on the welding edge, so that the structure of the solder joints is uniformly stressed and avoids stress concentration in the connecting parts.
[0041] Through the above structure, compared with the prior art, the present invention further improves the torsional rigidity and stability of the front structure of the vehicle body, and is simple to assemble and reduces the processing cost.
