Pressing wheel assembly capable of achieving edge rolling operation of high-strength steel plate workpiece

Abstract

The utility model discloses a pinch roller assembly capable of realizing edge rolling operation of a high-strength steel plate workpiece, which comprises a laser heating mirror group for pre-softening a high-strength steel plate to be subjected to edge rolling operation, a rolling device for carrying out edge rolling operation on the pre-softened high-strength steel plate, and a servo articulated arm for connecting the laser heating mirror group and the pre-rolling device, therefore, the laser lens group obtains appropriate heating light spots and orientations relative to the edge rolling head according to the angle and position conditions. According to the pressing wheel assembly, on one hand, laser of the laser heating mirror set is adopted for heating a local area of a high-strength steel plate, then the edge rolling effect is achieved, then the rolling force in the edge rolling process is reduced, and the laser mirror set can adjust the angle and position conditions relative to an edge rolling head so as to obtain appropriate heating light spots and orientation; and on the other hand, the laser heating mirror set and the rolling device can be jointly installed on the mechanical arm by means of the servo articulated arm, and synchronization of laser annealing and rolling operation is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of pressure roller assembly, and in particular relates to a pressure roller assembly that can realize the edge rolling operation of high-strength steel plate workpieces. Background Technology

[0002] Automotive edge banding is a crucial step in automobile manufacturing, primarily used to connect the inner and outer body panels using specific processes. This enhances the overall structural rigidity and strength, while also improving aesthetics and sealing. The process involves placing the inner panel inside the outer panel before edge banding. Pre-flanging inserts adjust the flanging angle of the outer panel, resulting in the pre-edge banding state. Then, pressing inserts bring the flanged portion of the outer panel into contact with the inner panel, completing the final edge banding.

[0003] There are three main types of edge binding processes: press molding edge binding, robot rolling edge binding, and special machine edge binding. Among them, robot rolling edge binding involves placing the outer panel on a mold, and then a robotic arm with rollers folds the outer panel edge onto the inner panel at different angles in several stages.

[0004] However, the development of lightweight design in automotive body-in-white has led to the increasing use of high-strength steel sheets. In the current robotic hemming process, the folding force applied to the hem is ultimately provided by the robotic arm through rollers, with a typical roller pressure of 1500–2000 N. This means that the rolling pressure applied by current hemming tools cannot meet the requirements for hemming high-strength steel sheets.

[0005] Therefore, there is a need for a pressure roller assembly that can perform edge rolling operations on high-strength steel plate workpieces. Utility Model Content

[0006] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a pressure roller assembly that can realize the edge rolling operation of high-strength steel plate workpieces.

[0007] Technical solution: This utility model relates to a pressure roller assembly for edge rolling of high-strength steel plate workpieces, comprising:

[0008] The laser heating mirror assembly is used to pre-soften the high-strength steel plate to be rolled.

[0009] The rolling device performs edge rolling operations on pre-softened high-strength steel plates.

[0010] The servo articulated arm connects the laser heating mirror assembly to the rolling device, allowing the laser heating mirror assembly to adjust its angle and position relative to the rolling device to obtain a suitable heating spot and orientation.

[0011] Furthermore, the servo articulated arm used in the pressure roller assembly is a 3-DOF servo articulated arm, which includes a base connected to the rolling device, an arm one rotatably connected to the base at one end, the other end of the arm one rotatably connected to one end of the arm two, and the other end of the arm two rotatably connected to the laser heating mirror assembly.

[0012] Furthermore, the servo articulated arm's base is connected to Arm 1, Arm 1 to Arm 2, and Arm 2 to the laser heating mirror assembly using servo motors and reducers to form rotational connections, thereby controlling the degrees of freedom in different directions.

[0013] Furthermore, the laser heating mirror assembly used in the pressure roller assembly is equipped with an infrared temperature detection sensor to obtain the temperature of the currently heated area.

[0014] Furthermore, the rolling device used in the pressure roller assembly includes a main shaft, a roller head seat connected to the main shaft, and a pressure roller rotatably disposed on one side of the middle of the roller head seat. The main shaft is connected to the robotic arm via a flange, and the base is fixedly connected to the main shaft.

[0015] Furthermore, the roller head seat of the rolling device is connected to the main shaft via a connecting plate.

[0016] Furthermore, a pressure roller is connected to the roller head seat of the rolling device on the other side of the pressure roller.

[0017] Beneficial effects: Compared with the prior art, the advantages of this utility model are as follows: The pressure roller assembly combines the laser heating mirror group and the rolling device by using a servo articulated arm. On the one hand, the laser heating mirror group first heats a local area of ​​the high-strength steel plate with laser. That is, the laser source transmits the laser beam to the laser mirror group through the optical fiber. The mirror group focuses the beam to the area near the bending line of the outer plate of the edge-sealing part, softening the area before the rolling action is performed, thereby reducing the rolling pressure in the rolling process. Moreover, the laser mirror group can adjust the angle and position relative to the rolling head to obtain a suitable heating spot and orientation. On the other hand, the servo articulated arm can be used to mount the laser heating mirror group and the rolling device together on the robotic arm to achieve the synchronization of laser heat treatment and rolling operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the pressure roller assembly of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the pressure roller assembly of this utility model. Figure 2 ; Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] This utility model's pressure roller assembly, such as Figure 1 and Figure 2 As shown, the system includes a laser heating mirror assembly 1, which employs a structure known in the art and will not be described in detail here, as long as it can heat and soften high-strength steel plates. Based on the pre-softening using the laser heating mirror assembly 1, a rolling device 2 controlled by a robotic arm 12 is used for rolling, thereby realizing the edge rolling operation of the high-strength steel plate workpiece. The rolling device 2 and the laser heating mirror assembly 1 are connected by a servo articulated arm 3, preferably a 3-DOF servo articulated arm, to achieve synchronization between the two. At the same time, the laser heating mirror assembly 1 can be adjusted in angle and position relative to the rolling device 2 to obtain a suitable heating spot and orientation.

[0022] Specifically, the rolling device 2 includes a main shaft 8 connected to the robotic arm 12 via a flange 11, a roller head seat 9 located at the lower end of the main shaft 8 and connected to the main shaft 8 via a connecting plate 13, and a pressure roller 10 and a pressure roller 14 rotatably connected on the roller head seat 9, with both located on opposite sides of the roller head seat 9.

[0023] The 3-DOF servo articulated arm includes a base 4, arm 5, and arm 6, which are rotatably connected in sequence. The base 4 is fixedly connected to the main shaft 8 of the rolling device 2. Arm 6 is connected to the laser heating mirror assembly 1. The other end of the base 4 is rotatably connected to one end of arm 5, the other end of arm 5 is rotatably connected to one end of arm 6, and the other end of arm 6 is rotatably connected to the laser heating mirror assembly 1. Furthermore, the rotatable connections between the base 4 and arm 5, arm 5 and arm 6, and arm 6 and laser heating mirror assembly 1 can all be achieved by a control system composed of servo motors and reducers. This is a well-known technology in the field, and the resulting multiple degrees of freedom can be adjusted and set according to the actual rolling process.

[0024] In addition to the above, the laser heating mirror assembly 1 of this utility model is also equipped with an infrared temperature detection sensor 7 to obtain the temperature of the currently heated area, and feed it back to the control system to adjust the beam power and thus realize closed-loop control of the heating temperature.

Claims

1. A pressure roller assembly capable of performing edge rolling operations on high-strength steel plate workpieces, characterized in that, The pressure roller assembly includes: Laser heating mirror assembly (1) is used to pre-soften the high-strength steel plate to be rolled. Rolling device (2) performs edge rolling operation on pre-softened high-strength steel plate; The servo articulated arm (3) connects the laser heating mirror assembly (1) to the rolling device so that the laser heating mirror assembly (1) relative to the rolling device (2) is adjusted in terms of angle and position to obtain the heating spot and orientation.

2. The pressure roller assembly for achieving edge rolling of high-strength steel plate workpieces according to claim 1, characterized in that, The servo articulated arm (3) is a 3-degree-of-freedom servo articulated arm, which includes a base (4) connected to the rolling device (2), an arm one (5) rotatably connected to the base (4) at one end, the other end of the arm one (5) rotatably connected to one end of the arm two (6), and the other end of the arm two (6) rotatably connected to the laser heating mirror group (1).

3. The pressure roller assembly for achieving edge rolling of high-strength steel plate workpieces according to claim 2, characterized in that, The base (4) and arm one (5), arm one (5) and arm two (6), and arm two (6) and laser heating mirror group (1) are all connected by servo motors and reducers to form rotational connections, so as to control the degrees of freedom in different directions.

4. The pressure roller assembly for achieving edge rolling of high-strength steel plate workpieces according to claim 1, characterized in that, The laser heating mirror assembly (1) is equipped with an infrared temperature detection sensor (7) to obtain the temperature of the currently heated area.

5. The pressure roller assembly for achieving edge rolling of high-strength steel plate workpieces according to claim 2, characterized in that, The rolling device (2) includes a main shaft (8), a roller seat (9) connected to the main shaft (8), and a pressure roller (10) rotatably disposed on one side of the middle part of the roller seat (9). The main shaft (8) is connected to the robotic arm (12) through a flange (11), and the base (4) is fixedly connected to the main shaft (8).

6. The pressure roller assembly for achieving edge rolling of high-strength steel plate workpieces according to claim 5, characterized in that, The roller head seat (9) is connected to the main shaft (8) via a connecting plate (13).

7. The pressure roller assembly for achieving edge rolling of high-strength steel plate workpieces according to claim 5, characterized in that, The roller head seat (9) of the rolling device (2) is connected to a pressure roller (14) on the other side of the pressure roller (10).

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