Ultrasonic tip penetrating and welding automobile bumper

Abstract

The utility model relates to the technical field of automobile bumpers, in particular to an ultrasonic tip penetrating and welding automobile bumper. According to the technical scheme, the automobile bumper comprises a main bumper plate, elastic bent plates and side edge plates, the side edge plates are welded to the two ends of the main bumper plate, a plurality of main reinforcing ribs are arranged on the upper surface of the main bumper plate at equal intervals, and a plurality of side edge reinforcing ribs are arranged on the inner sides of the two side edge plates at equal intervals; insertion columns are arranged at the positions, close to the two ends, of the outer surface of the elastic bent plate, side edge fixing insertion holes are formed in the positions, close to the lower surfaces, of the inner sides of the two side edge plates, and main fixing insertion holes are formed in the positions, close to the two ends, of the upper surface of the main bumper plate. The two inserting columns are located in the side edge fixing inserting holes and the main fixing inserting holes correspondingly. According to the utility model, the automobile bumper can be produced in a manner of split injection molding and later welding, so that the development and injection molding difficulty of the mold is greatly reduced, the production cost is reduced, and meanwhile, the defective rate is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bumpers, in particular to an ultrasonic penetration welding automobile bumper. Background Art

[0002] The bumpers installed at the front and rear ends of the car not only have a decorative function, but more importantly, they are safety devices that absorb and mitigate external impact, protect the body and protect the body and occupants. In the past, the front and rear bumpers of cars were mainly made of metal materials. They were stamped into U-shaped channel steel with a thickness of more than 3 mm, and the surface was chrome-plated. They were riveted or welded to the frame longitudinal beams, and there was a large gap between them and the body, as if they were an attached component that looked very unsightly. With the development of the automobile industry and the extensive application of engineering plastics in the automobile industry, automobile bumpers, as an important safety device, have also embarked on the road of innovation. At present, in addition to maintaining the original protection function, the front and rear bumpers of cars also pursue harmony and unity with the body shape and pursue their own lightweight. The front and rear bumpers of cars are made of plastic, which people call plastic bumpers.

[0003] At present, automobile bumpers are usually made of one-piece injection molding and are U-shaped. However, due to the complexity of the cavity surface, unequal forces, and uneven stress distribution, mold development and injection molding are difficult, and the defective rate is also high. For this reason, we propose an ultrasonic piercing welding automobile bumper. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic piercing welding automobile bumper, which has the advantage of being able to produce the automobile bumper in a manner of split injection molding and later welding, thereby greatly reducing the difficulty of mold development and injection molding, reducing production costs, and also reducing the defective rate. It solves the problem that the current automobile bumper is usually made of one-piece injection molding and is U-shaped, but due to its very complex cavity surface, unequal force, and uneven stress distribution, the difficulty of mold development and injection molding is high, and the defective rate is also high.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic penetration welding automobile bumper, comprising a main bumper plate, an elastic bent plate and a side plate, side plates are welded at both ends of the main bumper plate, a plurality of main reinforcing ribs are equidistantly arranged on the upper surface of the main bumper plate, a plurality of side reinforcing ribs are equidistantly arranged on the inner sides of the two side plates, columns are arranged on the outer surface of the elastic bent plate near the two ends, side fixing sockets are arranged on the inner sides of the two side plates near the lower surface, main fixing sockets are arranged on the upper surface of the main bumper plate near the two ends, and the two columns are respectively located inside the side fixing sockets and the main fixing sockets.

[0006] Preferably, the main bumper plate and the side plates are welded by ultrasonic welding.

[0007] Preferably, a plurality of fixing slots are equidistantly provided at both ends of the elastic bent plate, and ends of the side reinforcing ribs and the main reinforcing ribs are respectively located inside the fixing slots at both ends of the elastic bent plate.

[0008] Preferably, a side buffer energy absorption plate is fixedly installed between two adjacent side reinforcement ribs on the inner sides of the two side panels.

[0009] Preferably, a main buffer energy-absorbing plate is fixedly installed between two adjacent main reinforcing ribs on the upper surface of the main bumper plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model achieves the effect of enabling the automobile bumper to be produced by split injection molding and later welding by arranging a main bumper plate, side plates, elastic bent plates, plug posts, side fixing sockets and main fixing sockets, thereby greatly reducing the difficulty of mold development and injection molding, reducing production costs, and also reducing the defective rate. The two side plates and the main bumper plate are combined together by ultrasonic welding to form a U-shaped automobile bumper, and the elastic bent plates fixed by the plug posts, side fixing sockets and main fixing sockets improve the strength of the ultrasonic welding seam between the main bumper plate and the side plates.

[0012] 2. The utility model achieves the effect of improving the overall strength of the side panel and the main bumper panel by arranging side reinforcing ribs, main reinforcing ribs and fixing slots, and also facilitates the fixation of the elastic bent panel. The side reinforcing ribs and the main reinforcing ribs respectively enhance the strength of the side panel and the main bumper panel, and the main reinforcing ribs and the side reinforcing ribs are inserted into the fixing slots, which is also conducive to the fixation of the elastic bent panel.

[0013] 3. The utility model provides the side buffer energy absorption plate and the main buffer energy absorption plate, so that the automobile bumper can play the role of energy absorption and buffering when it is hit, thereby protecting the people in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 3 It is a schematic diagram of the side sectional structure of the utility model.

[0017] Figure numerals: 1. Main bumper plate; 2. Elastic bent plate; 3. Side plate; 4. Side reinforcement ribs; 5. Side buffer energy absorption plate; 6. Main reinforcement ribs; 7. Main buffer energy absorption plate; 8. Side fixing socket; 9. Plug column; 10. Main fixing socket; 11. Fixing slot. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1-Figure 3 As shown, the utility model proposes an ultrasonic penetration welding automobile bumper, including an ultrasonic penetration welding automobile bumper, including a main bumper plate 1, an elastic bent plate 2 and a side plate 3, both ends of the main bumper plate 1 are welded with side plates 3, the main bumper plate 1 and the side plates 3 are ultrasonically welded, the main bumper plate 1 and the side plates 3 are both made of plastic, the two side plates 3 and the main bumper plate 1 are ultrasonically welded together to form a U-shaped automobile bumper, a plurality of main reinforcing ribs 6 are equidistantly arranged on the upper surface of the main bumper plate 1, the main reinforcing ribs 6 and the main bumper plate 1 are integrally injection-molded, a plurality of side reinforcing ribs 4 are equidistantly arranged on the inner sides of the two side plates 3, the side reinforcing ribs 4 and the side plates 3 are integrally injection-molded.

[0020] The outer surface of the elastic bent plate 2 is provided with plug posts 9 near both ends. The elastic bent plate 2 and the plug posts 9 are integrally processed. The inner sides of the two side panels 3 are provided with side fixing holes 8 near the lower surface. The upper surface of the main bumper plate 1 is provided with main fixing holes 10 near both ends, and the two plug posts 9 are respectively located inside the side fixing holes 8 and the main fixing holes 10. The elastic bent plate 2 is fixed at the connection between the side panel 3 and the main bumper plate 1 by fixing the plug posts 9, the side fixing holes 8 and the main fixing holes 10, that is, at the position of the ultrasonic welding seam.

[0021] A plurality of fixed slots 11 are equidistantly arranged at both ends of the elastic curved plate 2, and the ends of the side reinforcing ribs 4 and the main reinforcing ribs 6 are respectively located inside the fixed slots 11 at both ends of the elastic curved plate 2, and the number of the side reinforcing ribs 4 and the main reinforcing ribs 6 is equal to the number at both ends of the elastic curved plate 2, and corresponds one to one. The main reinforcing ribs 6 and the side reinforcing ribs 4 are inserted into the fixed slots 11 at both ends of the elastic curved plate 2, which is also beneficial to the fixation of the elastic curved plate 2. A side buffer energy absorption plate 5 is fixedly installed between two adjacent side reinforcing ribs 4 on the inner sides of the two side plates 3, and a main buffer energy absorption plate 7 is fixedly installed between two adjacent main reinforcing ribs 6 on the upper surface of the main bumper plate 1. The side buffer energy absorption plate 5 and the main buffer energy absorption plate 7 enable the automobile bumper to play an energy absorption and buffering role when it is hit, thereby protecting the people in the car.

[0022] The two side panels 3 and the main bumper plate 1 in the utility model are combined together by ultrasonic welding to form a U-shaped automobile bumper, so that the automobile bumper can be produced by split injection molding and later welding, which greatly reduces the difficulty of mold development and injection molding, reduces production costs, and also reduces the defective rate. The elastic bent plate 2 fixed by the plug column 9, the side fixing socket 8 and the main fixing socket 10 improves the strength of the ultrasonic welding seam between the main bumper plate 1 and the side panel 3.

[0023] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An ultrasonic penetration welding automobile bumper, comprising a main bumper plate (1), an elastic bent plate (2) and a side plate (3), characterized in that: Both ends of the main bumper plate (1) are welded with side plates (3), the upper surface of the main bumper plate (1) is provided with a plurality of main reinforcing ribs (6) at equal intervals, the inner sides of the two side plates (3) are provided with a plurality of side reinforcing ribs (4) at equal intervals, the outer surface of the elastic bent plate (2) is provided with plug posts (9) near the two ends, the inner sides of the two side plates (3) are provided with side fixing sockets (8) near the lower surface, the upper surface of the main bumper plate (1) is provided with main fixing sockets (10) near the two ends, and the two plug posts (9) are respectively located inside the side fixing sockets (8) and the main fixing sockets (10).

2. The ultrasonic penetration welding method for automobile bumper according to claim 1, characterized in that: The main bumper plate (1) and the side plate (3) are welded by ultrasonic welding.

3. The ultrasonic penetration welding method for automobile bumper according to claim 1, characterized in that: A plurality of fixed slots (11) are evenly spaced at both ends of the elastic bent plate (2), and the ends of the side reinforcing ribs (4) and the main reinforcing ribs (6) are respectively located inside the fixed slots (11) at both ends of the elastic bent plate (2).

4. The ultrasonic penetration welding method for automobile bumper according to claim 1, characterized in that: A side buffering energy absorbing plate (5) is fixedly installed between two adjacent side reinforcing ribs (4) on the inner sides of the two side plates (3).

5. The ultrasonic penetration welding method for automobile bumper according to claim 1, characterized in that: A main buffer energy absorption plate (7) is fixedly installed between two adjacent main reinforcement ribs (6) on the upper surface of the main bumper plate (1).

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