A kind of energy absorption box lining plate riveting device capable of improving docking accuracy

Abstract

The utility model discloses a kind of energy-absorbing box lining plate riveting devices that can improve butt joint accuracy, connecting hole one is provided on the energy-absorbing box, riveting hole one;Connecting hole two is provided on lining plate, and riveting hole two matched with riveting hole one. The riveting device includes pedestal, pedestal is provided with bracket group, pre-positioning part, accurate positioning part and riveting assembly;The bracket group is made of 2 L-shaped brackets, and 2 brackets are connected on the pedestal, and the bracket is provided with supporting plate, and the supporting plate is supported on the lower part of energy-absorbing box;The pre-positioning part is made of 2 pre-positioning frames, positioning pin one and cylinder one;Positioning pin one is matched with connecting hole one on energy-absorbing box, and pre-positioning frame is provided with guide hole matched with positioning pin one, and after positioning pin one end passes through guide hole, it is from connecting hole one to connecting hole two. The utility model has the characteristics of accurate positioning, reliable riveting, safe and efficient.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a riveting device for the inner lining plate of an energy-absorbing box that can improve docking accuracy. Background Technology

[0002] The energy-absorbing box and the crash beam can be assembled by welding or bolting. For bolted connections, a groove is typically created on the energy-absorbing box, a portion of the crash beam is embedded into this groove, and matching through-holes are then created on both the energy-absorbing box and the crash beam. Bolts are then used to connect the energy-absorbing box and the crash beam. Since the material strength of the energy-absorbing box is generally lower than that of the crash beam, a reinforcing liner is required inside the energy-absorbing box. This reinforcing liner can be welded, but this can lead to issues such as misalignment of the liner, insufficient weld strength, deformation, or burn-through. Alternatively, the reinforcing liner can be riveted into the energy-absorbing box. However, this method has the problem of inaccurate positioning of the liner during riveting, resulting in misalignment between the connecting holes on the energy-absorbing box and the liner. This prevents the bolts from passing smoothly through the connecting holes when connecting the crash beam and the energy-absorbing box. Utility Model Content

[0003] This invention aims to overcome the deficiencies of existing technologies and provide a riveting device for the inner lining plate of an energy-absorbing box that can improve docking accuracy, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A riveting device for the inner lining plate of an energy-absorbing box that can improve docking accuracy is disclosed. The energy-absorbing box is provided with a first connecting hole and a first riveting hole. The inner lining plate is provided with a second connecting hole and a second riveting hole that matches the first riveting hole. The inner diameter of the first connecting hole is smaller than that of the second connecting hole. The riveting device includes a base, on which a bracket assembly, a pre-positioning part, a precision positioning part, and a riveting component are provided. The bracket assembly consists of two L-shaped brackets connected to the base. A support plate is provided on the bracket, and the support plate supports the lower part of the energy-absorbing box. The pre-positioning unit consists of two pre-positioning frames, a positioning pin, and a cylinder. The positioning pin matches the connection hole on the energy-absorbing box. The pre-positioning frame is provided with a guide hole that matches the positioning pin. One end of the positioning pin passes through the guide hole and then through the connection hole to the connection hole. The other end of the positioning pin is connected to the piston rod of the cylinder. The cylinder is mounted on the base through a bracket.

[0005] The precision positioning unit precisely positions the concentricity of connecting hole one and connecting hole two.

[0006] The aforementioned precise positioning energy-absorbing box inner liner riveting device comprises a precision positioning frame and a second positioning pin mounted thereon. The precision positioning frame is movably mounted on the base. The second positioning pin passes through the second connecting hole to the first connecting hole. The second positioning pin has a two-section structure, consisting of a first section and a second section. The outer diameter of the first section matches the inner diameter of the first connecting hole, and the outer diameter of the second section matches the inner diameter of the second connecting hole.

[0007] The aforementioned energy-absorbing box liner riveting device with precise positioning has an arc-shaped head on the first section of the second positioning pin and a chamfered head on the second section.

[0008] The aforementioned energy-absorbing box liner riveting device with precise positioning, wherein the precision positioning frame is mounted on the lifting assembly, and the lifting assembly includes a lifting frame, a second bracket, and a second cylinder; The second support is equipped with a vertical slide rail, and the lifting frame is equipped with a slider two that matches the vertical slide rail. The second cylinder is vertically installed on the base, and its piston rod is connected to the lifting frame. Driven by the second cylinder, the lifting frame can move up and down along the second support. The lifting frame is equipped with a cylinder three and a horizontal slide rail, and the precision positioning frame is equipped with a slider three that matches the horizontal slide rail. The precision positioning frame is connected to the piston rod of the cylinder three. Under the drive of the cylinder three, the precision positioning frame can slide horizontally on the lifting frame.

[0009] The aforementioned energy-absorbing box liner riveting device with precise positioning consists of a riveting frame and a riveting gun mounted thereon, with the riveting frame suspended above the base.

[0010] The aforementioned energy-absorbing box inner liner riveting device with precise positioning also has a detection component on its base. The detection component includes a detection frame and an inductive proximity switch mounted thereon, with one end of the detection frame hinged to the base. Beneficial effects

[0011] Compared with the prior art, this utility model has the following advantages: First, the pre-positioning part set on the base can roughly position the connecting hole one on the energy-absorbing box and the connecting hole two on the inner liner plate. The positioning pin one in the pre-positioning part passes through the connecting hole one on both sides of the energy-absorbing box 4 into the interior of the energy-absorbing box 4, passing through the connecting hole one and the connecting hole two in sequence, thus performing a preliminary rough positioning of the connecting hole one and the connecting hole two. Second, the positioning of the precise positioning part is from the inside of the energy-absorbing box. The positioning pin two passes through the connecting hole two on the inner liner plate and the connecting hole one on the energy-absorbing box in sequence. The two-section structure of the positioning pin two has different outer diameters. The first section matches the connecting hole one, and the second section matches the connecting hole two. As the positioning pin two passes into the connecting hole two and the connecting hole one, the positioning pin one gradually withdraws, achieving precise positioning of the concentricity of the connecting hole one and the connecting hole two. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is another partial structural schematic diagram of this utility model; Figure 4 This is a schematic diagram of the pre-positioning and precision positioning structure of this utility model; Figure 5 This is another structural schematic diagram of the precise positioning of this utility model; Figure 6 This is another partial structural schematic diagram of the present invention; Figure 7 This is a schematic diagram of the energy-absorbing box and inner lining plate of this utility model; The labels in the diagram represent: 1. Base; 2. Pre-positioning frame; 2-1. Positioning pin one; 2-2. Cylinder one; 2-3. Bracket one; 3. Bracket; 3-1. Support plate; 4. Energy absorption box; 4-1. Connecting hole one; 4-2. Riveting hole one; 5. Inner liner plate; 5-1. Connecting hole two; 6. Precision positioning frame; 6-1. Positioning pin two; 6-1-1. First section; 6-1-2. Second section; 7. Lifting frame; 7-2. Bracket two; 7-3. Cylinder three; 8. Riveting frame; 8-1. Riveting gun; 9. Detection frame; 9. Inductive proximity switch. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] When the energy-absorbing box 4 is bolted to the anti-collision beam, since the material strength of the energy-absorbing box is lower than that of the anti-collision beam, an inner lining plate is generally added inside the energy-absorbing box to prevent the energy-absorbing box from tearing at the connection hole during a collision, thus affecting the anti-collision effect of the anti-collision beam and the energy-absorbing effect of the energy-absorbing box. The energy-absorbing box 4 is provided with connection hole 4-1 and riveting hole 4-2; the inner lining plate 5 is provided with connection hole 5-1 and a riveting hole 2 that matches riveting hole 4-2. The inner diameter of connection hole 4-1 is smaller than that of connection hole 5-1, and the inner diameters of riveting hole 4-2 and riveting hole 2 are the same. When the energy-absorbing box 4 is connected to the anti-collision beam, the connecting bolts pass through the connecting holes on the anti-collision beam, the connecting hole 4-1 on the energy-absorbing box 4, and the connecting hole 2 on the inner liner plate 5 in sequence. Therefore, the connecting hole 4-1 and the connecting hole 2 on the inner liner plate 5 are required to be concentric, that is, the center lines of the two holes overlap. This requires that the inner liner plate and the energy-absorbing box be accurately positioned during riveting.

[0016] The riveting device for the inner lining of the energy-absorbing box includes a base 1, on which a bracket assembly, a pre-positioning part, a precision positioning part, and a riveting component are provided.

[0017] The bracket assembly consists of two L-shaped brackets 3, which are connected to the base 1. The distance between the two brackets 3 matches the width of the energy-absorbing box. Figure 3 As shown, the displacement of the energy-absorbing box 4 in the left and right directions is constrained. A support plate 3-1 is provided on the bracket 3, which supports the lower part of the energy-absorbing box 4. When the energy-absorbing box 4 is long, two sets of brackets can be provided to support it. The connection between the bracket 3 and the base 1 can be achieved in one of two ways: one is a fixed connection, i.e., using bolts or welding to connect the bracket 3 and the base 1; the other is that a dovetail-shaped slide rail is provided on the base 1, and a slider matching the dovetail-shaped slide rail is provided at the bottom of the bracket 3, allowing the bracket 3 to slide on the dovetail-shaped slide rail. A locking screw is provided on the bracket 3; by tightening the locking screw, the screw head can abut against or separate from the dovetail-shaped slide rail, realizing the locking and loosening of the bracket 3 on the dovetail-shaped slide rail. The advantage of the second method is that it is applicable to energy-absorbing boxes of different widths.

[0018] The pre-positioning unit consists of two pre-positioning frames 2, a positioning pin 2-1, and a cylinder 2-2. The positioning pin 2-1 matches the connecting hole 4-1 on the energy-absorbing box 4. The pre-positioning frame 2 has a guide hole matching the positioning pin 2-1. One end of the positioning pin 2-1 passes through the guide hole and then through the connecting hole 4-1 to the connecting hole 2-2. The other end of the positioning pin 2-1 is connected to the piston rod of the cylinder 2-2. The cylinder 2-2 is mounted on the base 1 via a bracket 2-3. The two pre-positioning frames 2 are respectively located on the left and right sides of the energy-absorbing box 4. Figure 1 As shown. The other end of the positioning pin 2-1 is connected to the piston rod of the cylinder 2-2. The positioning pin 2-1 can be directly connected to the piston rod of the cylinder 2-2, or it can be connected to the piston rod of the cylinder 2-2 through the connecting plate 2-4. That is, the positioning pin 2-1 is connected to the connecting plate 2-4, and the connecting plate 2-4 is connected to the piston rod of the cylinder 2-2. When the length of the energy-absorbing box is large, two sets of pre-positioning parts can be set.

[0019] The precision positioning unit precisely positions the concentricity of connecting hole 4-1 and connecting hole 2.

[0020] The positioning pin 2-1 of the pre-positioning unit penetrates into the energy-absorbing box 4 through the connecting holes on both sides, passing through connecting hole one and connecting hole two in sequence. Since the inner diameter of connecting hole two is larger than that of connecting hole one, positioning pin 2-1 can only roughly position the concentricity of connecting holes one and two, and cannot achieve precise positioning. Therefore, riveting hole one and riveting hole two cannot be precisely aligned. This necessitates a precision positioning unit for positioning.

[0021] The precision positioning unit can be designed as follows: The precision positioning unit consists of a precision positioning frame 6 and a second positioning pin 6-1 mounted on it. The precision positioning frame 6 is movably mounted on the base 1. The second positioning pin 6-1 passes through the second connecting hole 5-1 and the first connecting hole 4-1. The second positioning pin 6-1 has a two-section structure, consisting of a first section 6-1-1 and a second section 6-1-2. The outer diameter of the first section 6-1-1 matches the inner diameter of the first connecting hole 4-1, and the outer diameter of the second section 6-1-2 matches the inner diameter of the second connecting hole 5-1. Two precision positioning frames 6 are provided, and the second positioning pins 6-1 on them pass out of the energy-absorbing box 4 from the inside of the energy-absorbing box 4, sequentially passing through the second connecting hole and the first connecting hole. As the second positioning pin 6-1 sequentially enters the second connecting hole and the first connecting hole, the first positioning pin 2-1 gradually exits from the second connecting hole and the first connecting hole.

[0022] To facilitate the insertion and positioning of the second positioning pin 6-1: the head of the first segment 6-1-1 of the second positioning pin 6-1 is set with an arc shape, and the head of the second segment 6-1-2 is set with a chamfer or set with an arc shape. The arc shape of the head of the first segment 6-1-1 facilitates its sequential insertion into the second connecting hole 5-1 and the first connecting hole 4-1, while the chamfer of the head of the second segment 6-1-2 facilitates its passage through the second connecting hole 5-1.

[0023] The precision positioning frame 6 can be mounted on the base 1 in the following manner: The precision positioning frame 6 is mounted on a lifting assembly, which includes a lifting frame 7, a second support 7-1, and a second cylinder 7-2. The second support 7-1 is mounted on the base 1 and has a vertical slide rail. The lifting frame 7 has a second slider that matches the vertical slide rail. The second cylinder 7-2 is vertically mounted on the base 1, and its piston rod is connected to the lifting frame 7. Driven by the second cylinder 7-2, the lifting frame 7 can move up and down along the second support 7-1. The lifting frame 7 has a third cylinder 7-3 and a horizontal slide rail. The precision positioning frame 6 has a third slider that matches the horizontal slide rail. The precision positioning frame 6 is connected to the piston rod of the third cylinder 7-3. Driven by the third cylinder 7-3, the precision positioning frame 6 can slide horizontally on the lifting frame 7.

[0024] The riveting assembly can be configured as follows: The riveting assembly consists of a riveting frame 8 and riveting guns 8-1 mounted on it. The riveting frame 8 is suspended above the base 1, and the number and position of the riveting guns 8-1 match the riveting holes. When riveting is required, the riveting frame 8 is manually dragged to the riveting position for riveting. Alternatively, the riveting frame 8 can be connected to a robot's robotic arm, allowing the robot to control the riveting frame 8 to enter and exit the riveting position, thus achieving automated riveting.

[0025] A detection component can also be installed to detect the riveting process: a detection component is installed on the base 1, comprising a detection frame 9 and an inductive proximity switch 9-1 mounted thereon, with one end of the detection frame 9 hinged to the base 1. The inductive proximity switch 9-1 can be a KERI BD1.5-S3S2-M8S8 model. After riveting is completed, the detection frame 9 can be rotated to the top of the rivet, and the inductive proximity switch 9-1 will detect the rivet.

Claims

1. A riveting device for an energy-absorbing box liner plate that can improve docking accuracy, wherein the energy-absorbing box (4) is provided with a first connecting hole (4-1) and a first riveting hole (4-2); the liner plate (5) is provided with a second connecting hole (5-1) and a second riveting hole that matches the first riveting hole (4-2), wherein the inner diameter of the first connecting hole (4-1) is smaller than that of the second connecting hole (5-1); characterized in that, The riveting device includes a base (1), on which a bracket assembly, a pre-positioning part, a precision positioning part and a riveting component are provided; the bracket assembly consists of two L-shaped brackets (3), the two brackets (3) are connected to the base (1), and a support plate (3-1) is provided on the bracket (3), the support plate (3-1) is supported on the lower part of the energy-absorbing box (4); The prepositioning unit consists of two prepositioning frames (2), a positioning pin (2-1), and a cylinder (2-2). The positioning pin (2-1) matches the connection hole (4-1) on the energy absorption box (4). The prepositioning frame (2) is provided with a guide hole that matches the positioning pin (2-1). One end of the positioning pin (2-1) passes through the guide hole and then passes through the connection hole (4-1) to the connection hole (5-1). The other end of the positioning pin (2-1) is connected to the piston rod of the cylinder (2-2). The cylinder (2-2) is mounted on the base (1) through the bracket (2-3). The precision positioning unit precisely positions the concentricity of connecting hole one (4-1) and connecting hole two.

2. The riveting device for the inner liner of the energy-absorbing box that improves docking accuracy according to claim 1, characterized in that, The precision positioning unit consists of a precision positioning frame (6) and a second positioning pin (6-1) disposed thereon. The precision positioning frame (6) is movably disposed on the base (1). The second positioning pin (6-1) passes through the second connecting hole (5-1) to the first connecting hole (4-1). The second positioning pin (6-1) has a two-section structure, consisting of a first section (6-1-1) and a second section (6-1-2). The outer diameter of the first section (6-1-1) matches the inner diameter of the first connecting hole (4-1), and the outer diameter of the second section (6-1-2) matches the inner diameter of the second connecting hole (5-1).

3. The riveting device for the inner liner of the energy-absorbing box, which improves docking accuracy, according to claim 2, is characterized in that... The head of the first segment (6-1-1) of the second positioning pin (6-1) is set to be arc-shaped, and the head of the second segment (6-1-2) is set with a chamfer.

4. The riveting device for the inner liner of the energy-absorbing box, which improves docking accuracy, according to claim 2, is characterized in that... The precision positioning frame (6) is mounted on the lifting assembly, which includes a lifting frame (7), a second bracket (7-1), and a second cylinder (7-2). A vertical slide rail is provided on the second bracket (7-1), and a slider two matching the vertical slide rail is provided on the lifting frame (7). The second cylinder (7-2) is vertically installed on the base (1), and its piston rod is connected to the lifting frame (7). Under the drive of the second cylinder (7-2), the lifting frame (7) can be raised and lowered along the second bracket (7-1). The lifting frame (7) is equipped with a cylinder three (7-3) and a horizontal slide rail. The precision positioning frame (6) is equipped with a slider three that matches the horizontal slide rail. The precision positioning frame (6) is connected to the piston rod of the cylinder three (7-3). Under the drive of the cylinder three (7-3), the precision positioning frame (6) can slide horizontally on the lifting frame (7).

5. The riveting device for the inner liner of the energy-absorbing box that improves docking accuracy according to claim 1, characterized in that, The riveting assembly consists of a riveting frame (8) and a riveting gun (8-1) mounted thereon, with the riveting frame (8) suspended above the base (1).

6. The riveting device for the inner liner of the energy-absorbing box that improves docking accuracy according to claim 1, characterized in that, The base (1) is also provided with a detection component, which includes a detection frame (9) and an inductive proximity switch (9-1) disposed thereon. One end of the detection frame (9) is hinged to the base (1).

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