A lightweight thermoforming integrated door ring processing system and door ring thereof

Abstract

This invention discloses a lightweight thermoformed integrated door ring processing system and its door ring, relating to the field of automotive door ring processing technology. It involves a pre-grinding process for automotive door rings, resulting in a more closely fitting welded surface. Existing grinding processes only grind the outer surface of the door ring, failing to address grooves. Since numerous grooves exist on automotive door rings, neglecting these grooves directly impacts the ring's strength. This invention changes the shape of the grinding belt, altering its contact surface with the door ring body and grooves, thus changing the grinding range. By controlling the shape of the grinding belt, it can be adapted to grind different curved surfaces. Furthermore, the rotation of the grinding belt switches the grinding surface, improving grinding efficiency and making the grinding of automotive door rings more targeted.

Description

Technical Field

[0001] This invention relates to the field of automotive door ring processing technology, specifically to a lightweight thermoforming integrated door ring processing system and its door ring. Background Technology

[0002] The car door ring is designed as an integrated door ring structure, combining the traditional separate components of the A-pillar upper reinforcement plate, A-pillar lower reinforcement plate, B-pillar reinforcement plate, and sill reinforcement plate. However, the car door ring is one of the most difficult parts to manufacture in the car body. The processing of the car door ring involves a variety of processing techniques, and the entire process is difficult and complex.

[0003] In response, Chinese patent application number CN113276954A discloses a thermoformed laser-welded integrated door ring and its processing method, relating to the automotive manufacturing field. The door ring includes a roof side beam, an A-pillar, a door sill, a lower B-pillar, and an upper B-pillar. These components are sequentially laser-welded together. An A-pillar patch plate is provided on the roof side beam, and a B-pillar patch plate is provided on the upper B-pillar. The A-pillar patch plate is spot-welded to the roof side beam, and the B-pillar patch plate is spot-welded to the upper B-pillar. This invention saves raw materials while ensuring the thickness of each component according to preset thickness requirements through individual material cutting, meeting the safety strength requirements of different positions on the door ring, ensuring vehicle safety, and reducing vehicle weight.

[0004] In the aforementioned comparative documents, the door ring manufacturing process requires laser welding to produce standard-compliant automotive door rings. However, the safety and quality of the door ring are affected by the welding process. To enhance the welding process, the automotive door ring needs to undergo a pre-grinding process. After grinding, the welded surface of the door ring fits better. In the existing grinding process, door ring grinding can only be designed to grind the outer surface, and grinding of some grooves cannot be completed. However, there are many grooves on the door ring, so not treating the door ring grooves will directly affect the strength of the door ring.

[0005] To address the aforementioned issues, a lightweight thermoforming integrated door ring processing system and its door ring are proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a lightweight thermoforming integrated door ring processing system and its door ring, which solves the problem in the prior art that the door ring groove cannot be processed.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a lightweight thermoforming integrated door ring processing system, including a processing base, the door ring system including the processing base and a processing robotic arm for processing the door ring, a feeding device is installed on the upper surface of the processing base, an automotive door ring body is placed on the upper surface of the feeding device, the feeding device is used to transport the automotive door ring body, and a door ring groove is formed on the inner side of the automotive door ring body;

[0008] The top of the processing robot arm is equipped with a clamping arm, and a limiting arm is connected to one side of the clamping arm. A processing component is provided on the inner wall of the clamping arm and the limiting arm. The processing component includes a positioning frame. The positioning frame is connected to the inner wall of the clamping arm and the limiting arm. The positioning frame is divided into two sections. One section is fixedly connected to the inner wall of the clamping arm and the limiting arm, and the other section is attached to the inner wall of the clamping arm and the limiting arm. The two sections of the positioning frame are connected by a hinge shaft.

[0009] A transmission roller is installed on the inner side of the positioning frame. The surface of the transmission roller is wrapped with a grinding belt. A grinding strip is provided on the outer surface of the grinding belt. A progressive component is also provided on the inner wall of the clamping arm and the limiting arm. The progressive component includes a servo motor. The output end of the servo motor is connected to a mounting shaft. A lifting frame is fixedly connected to the outer surface of the mounting shaft. A transmission rod is fixedly connected to one side of the lifting frame. A lifting cover is connected to the end of the transmission rod. A roller rod is embedded inside the transmission roller. The lifting cover is wrapped around both ends of the roller rod.

[0010] Preferably, the feeding device includes a drive motor and a conveyor belt with an infrared sensor. The drive motor drives the conveyor belt to rotate, thereby transporting the car door ring body. After the material is transported to the processing area and monitored by the infrared sensor, the transport stops.

[0011] Preferably, the transmission roller is driven by a hub motor. After the transmission roller rotates, the inner embedded roller rod also rotates. The grinding strip is sleeved on the surface of the grinding belt, and the contact surfaces of the two are attracted and adhered together by a magnet.

[0012] Preferably, a dust removal assembly is fixedly connected to the top of the lifting frame. The dust removal assembly includes a movable groove. The top of the lifting frame is fixedly connected to the movable groove. A set of through slots is opened inside the movable groove. A movable brush is embedded in the through slot. The movable groove and the movable brush are longitudinally slidably connected through the through slot.

[0013] Preferably, the top of the movable brush is covered with a collection cover, the movable brushes are assembled by interlocking with each other through grooves and sliders, and the bottom of the movable brush is attached to the surface of the grinding belt and the surface of the grinding strip. The movable brush is made of flexible material.

[0014] Preferably, a drive assembly is fixedly connected to the inner side of the clamping arm. The drive assembly includes a track groove. The track groove is fixedly connected to the inner side of the clamping arm. The track groove is arc-shaped, and the center of the arc of the track groove and the center of the mounting shaft are concentric circles in different planes.

[0015] Preferably, a traction rod is embedded inside the track groove, the traction rod is embedded inside the adjusting column, and the adjusting column is fixedly connected to the top of the lifting frame.

[0016] Preferably, a positioning post is fixedly connected to the outer side of the positioning frame, and a pressing post is fixedly connected to the other end of the positioning post. The pressing post presses against the upper surface of the grinding belt and the grinding strip.

[0017] Preferably, when the lifting frame deflects upward along the mounting shaft, the lifting cover pulls the roller, causing the roller to rise. The height of the transmission roller on one side of the lifting frame increases, which in turn causes the grinding strip to rise. The lower pressure column remains pressed against the upper surface of the grinding strip. The mounting shaft and servo motor are located directly below the lower pressure column. The lower pressure column and the positioning column are rotatably connected.

[0018] A lightweight thermoformed integrated door ring processing system includes an automotive door ring body, a door ring groove, an outer edge, an inner edge, and a connecting part. The outer edge is welded to the outer surface of the automotive door ring body, and the inner wall of the automotive door ring body is provided with an inner edge. A connecting part is welded at the bend of the inner edge. The automotive door ring body, outer edge, inner edge, and connecting part are all connected by laser welding.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] This invention provides a lightweight thermoformed integrated door ring processing system and its door ring. When grinding small arc surfaces, a straight grinding belt is unsuitable for grinding such surfaces. Therefore, during grinding, the grinding belt and grinding strip are bent along the axis. This bending changes the state of the grinding belt, altering its shape and the contact surface with the door ring body and groove. Consequently, the grinding range changes. By controlling the shape change of the grinding belt, it can be adapted to grinding different arc surfaces. Furthermore, the grinding surface is switched by rotating the grinding belt, improving grinding efficiency and making the grinding of the car door ring more targeted. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the automotive door ring body and the door ring groove of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the processing component and the chip removal component of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure for mounting the shaft and lifting frame of the present invention;

[0026] Figure 6 This is a schematic diagram of the lifting frame and transmission rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the movable groove and the collection cover of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the pressure column of the present invention;

[0029] Figure 9 This is a schematic diagram of the lifting frame and positioning column of the present invention;

[0030] Figure 10 This is a schematic diagram of the positioning frame and grinding belt of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of the grinding belt of the present invention in the state of being bent upwards.

[0032] In the diagram: 11. Machining base; 12. Machining robotic arm; 13. Feeding equipment; 14. Car door ring body; 15. Door ring groove; 21. Clamping arm; 22. Limiting arm; 3. Processing assembly; 31. Transmission roller; 32. Grinding belt; 33. Grinding strip; 34. Positioning frame; 4. Chip removal assembly; 41. Movable groove; 42. Movable brush; 43. Collection cover; 5. Progression assembly; 51. Mounting shaft; 52. Drive motor; 53. Lifting frame; 54. Transmission rod; 55. Positioning column; 56. Lifting cover; 57. Roller; 58. Pressing column; 6. Drive assembly; 61. Adjusting column; 62. Track groove; 63. Traction rod; 7. Inner edging; 8. Connecting part; 9. Outer edging. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0035] Combination Figures 1-11 This invention discloses a lightweight thermoforming integrated door ring processing system, including a processing base 11 and a processing robot arm 12 for processing the door ring. A feeding device 13 is installed on the upper surface of the processing base 11, and an automotive door ring body 14 is placed on the upper surface of the feeding device 13. The feeding device 13 is used to transport the automotive door ring body 14. The feeding device 13 includes a drive motor, a conveyor belt, and an infrared sensor. The drive motor drives the conveyor belt to rotate, thereby transporting the automotive door ring body 14. After being transported to the processing area and monitored by the infrared sensor, the transport stops. A door ring groove 15 is opened on the inner side of the automotive door ring body 14. During the processing of the automotive door ring, the processing robot arm 12 can perform grinding on the door ring. The grinding of its surface can be achieved by continuously changing the grinding position. However, the door ring groove 15 opened on the inner side of the automotive door ring body 14 cannot be processed by conventional means.

[0036] Conventional polishing methods, performed manually, are extremely time-consuming and labor-intensive. Mechanical polishing, on the other hand, is hampered by the shape of the door ring and cannot be completed effectively. Therefore, this design addresses these shortcomings, making the processing of car door rings more convenient. The specific operation is as follows:

[0037] The outer shell of the car door ring is made of high-strength steel. High-strength steel provides sufficient strength and rigidity to ensure that the door ring will not deform or break during vehicle operation. To improve ride comfort and safety, the inside of the car door ring is usually covered with a soft material. To increase the rigidity and strength of the car door ring, reinforcements are added to its structure. To protect the door ring from corrosion and the effects of the external environment, its surface is coated.

[0038] A clamping arm 21 is installed at the top of the processing robotic arm 12. A limiting arm 22 is connected to one side of the clamping arm 21. A processing component 3 is provided on the inner wall of the clamping arm 21 and the limiting arm 22. The processing component 3 includes a positioning frame 34. The positioning frame 34 is connected to the inner wall of the clamping arm 21 and the limiting arm 22. The positioning frame 34 is divided into two sections. One section is fixedly connected to the inner wall of the clamping arm 21 and the limiting arm 22, and the other section is attached to the inner wall of the clamping arm 21 and the limiting arm 22. The two sections of the positioning frame 34 are connected by a hinge shaft. In the processing of the car door ring body 14, the position of the car door ring body 14 needs to be defined first. The car door ring body 14 is placed on the feeding device 13, and the feeding device 13 supports the bottom end of the car door ring body 14. Then, the position of the two sides of the car door ring body 14 is limited by the clamping arm 21 and the limiting arm 22. After the position is defined, the subsequent processing operation begins.

[0039] During the processing, the door ring groove 15 on the inner side of the car door ring body 14 is polished. After polishing, the inner wall of the door ring groove 15 becomes smoother, which makes it more suitable for subsequent laser welding work.

[0040] A drive roller 31 is installed on the inner side of the positioning frame 34. The surface of the drive roller 31 is covered with a grinding belt 32. The drive roller 31 is driven by a hub motor. After being driven, the rotation of the drive roller 31 and the inner embedded roller 57 rotate accordingly. The grinding strip 33 is sleeved on the surface of the grinding belt 32, and the contact surfaces of the two are attracted and adhered together by a magnet. The outer surface of the grinding belt 32 is provided with the grinding strip 33. When grinding the inner wall of the door ring groove 15, the grinding strip 33 is first embedded into the inside of the door ring groove 15, and the grinding belt 32 is attached to the inner side of the car door ring body 14. When the grinding strip 33 and grinding belt 32 begin to rotate, the car door ring body 14 and door ring groove 15 are ground. Flat surface grinding is relatively simple, achieved solely through the rotation of the grinding belt 32 and grinding strip 33. However, the car door ring itself has a complex structure, resulting in numerous curved surfaces. Furthermore, the car door ring has a frame structure, requiring grinding of all four sides. Conventional grinding devices cannot simultaneously handle curved surface grinding and seamless switching between grinding surfaces. To address this issue, the following design is implemented:

[0041] The inner walls of the clamping arm 21 and the limiting arm 22 are also provided with a progressive component 5. The progressive component 5 includes a servo motor 52. The output end of the servo motor 52 is connected to a mounting shaft 51. A lifting frame 53 is fixedly connected to the outer surface of the mounting shaft 51. A transmission rod 54 is fixedly connected to one side of the lifting frame 53. A lifting cover 56 is connected to the end of the transmission rod 54. A roller 57 is embedded inside the transmission roller 31. The lifting cover 56 wraps around both ends of the roller 57.

[0042] To address the grinding of small curved surfaces, simply forming the grinding belt 32 into a straight line would not be suitable. Therefore, during grinding, the grinding belt 32 and the grinding strip 33 are bent along the axis. This bending causes a change in the state of the grinding belt 32, which in turn changes the contact surface between the grinding belt 32 and the car door ring body 14 and the door ring groove 15. Consequently, the grinding range changes. By controlling the change in the shape of the grinding belt 32, it can be adapted to grinding different curved surfaces.

[0043] As shown in the processing seat 11, when the grinding belt 32 is bent, the outer side of the bent grinding belt 32 can fit more closely to the inner wall of the car door ring body 14. The shaded area of ​​the processing seat 11 is the car door ring. In order to be suitable for the design of car door rings with different curved surfaces, grinding is performed by changing the shape of the grinding belt 32. This grinding device is only suitable for the processing of car door rings and can effectively solve the problem of uneven grinding of car door rings.

[0044] In the grinding of the car door ring body 14 and the door ring groove 15, the shape is adjusted for matching. After matching, the curved surface can be ground. This type of curved surface is mainly located at the connection between the edges of the car door ring body 14. Therefore, when the grinding belt 32 grinds the curved surface, it is considered that the edge has been ground. To make the grinding work more convenient, the grinding surface can be switched, as follows:

[0045] A positioning column 55 is fixedly connected to the outer side of the positioning frame 34. A pressing column 58 is fixedly connected to the other end of the positioning column 55. The pressing column 58 presses against the upper surface of the grinding belt 32 and the grinding strip 33. When the lifting frame 53 deflects upward along the mounting shaft 51, it pulls the roller 57 through the lifting cover 56, driving the roller 57 to rise. The height of the transmission roller 31 on one side of the lifting frame 53 rises, which drives the grinding strip 33 to rise. The pressing column 58 remains pressed against the upper surface of the grinding strip 33. The mounting shaft 51 and the servo motor 52 are located directly below the pressing column 58. The pressing column 58 and the positioning column 55 are rotatably connected.

[0046] When the curved surface is polished by bending the polishing belt 32, and the metal debris is cleaned by rotating the polishing belt 32, the polishing belt 32 can change from an upward state to a straight state when switching the polishing surface.

[0047] As shown in the machining base 11, when the grinding belt 32 is bent, the surface of the grinding belt 32 can grind the arc surface of the car door ring body 14 and the door ring groove 15. After grinding, the grinding belt 32 is pressed down, and the front end of the grinding belt 32 just contacts the other side of the car door ring body 14. By pressing down on the other side, and by the rotation of the grinding belt 32 and the rotation of the matching feeding device 13, the thrust after rotation pushes the car door ring body 14 to move. During the movement, the grinding belt 32 presses down on the other side of the car door ring body 14, and the grinding edge changes after pressing down.

[0048] When grinding the first edge of the car door ring body 14 and the door ring groove 15, the transmission roller 31 and the grinding belt 32 are rotated by the motor to grind the first edge of the car door ring body 14 and the door ring groove 15. When the first edge is ground to the end, the area between the first edge and the second edge is an arc surface. At this time, the lifting frame 53 is driven by the servo motor 52 to rotate along the mounting shaft 51. The rotated lifting frame 53 pulls the transmission rod 54, and then the transmission rod 54 drives the lifting cover 56. Finally, under the wrap of the lifting cover 56, the roller 57 is pulled upward. After being lifted, the grinding belt 32 bends. In order to keep the grinding belt 32 and the grinding strip 33 in a taut state, the grinding belt 32... After one side is lifted, the lower pressure column 58 presses against the upper surface of the polishing belt 32, ensuring that the polishing belt 32 is always taut. By lifting one side of the polishing belt 32, its shape is changed, making it suitable for polishing curved surfaces. After polishing the curved surface, the polishing belt 32 returns to a straight shape by descending. At this time, the front end of the polishing belt 32 presses against the second edge of the car door ring body 14 and the door ring groove 15, causing the car door ring body 14 and the door ring groove 15 to tumble. After pressing, the car door ring body 14 and the door ring groove 15 tumble, thus switching to the second surface for polishing. By switching the polishing surface, the efficiency of the polishing work is improved, and the polishing of the car door ring is made more targeted.

[0049] A chip removal assembly 4 is fixedly connected to the top of the lifting frame 53. The chip removal assembly 4 includes a movable groove 41. The top of the lifting frame 53 is fixedly connected to the movable groove 41. A set of through slots is opened inside the movable groove 41. A movable brush 42 is embedded in the through slot. The movable groove 41 and the movable brush 42 are longitudinally slidably connected through the through slot. The top of the movable brush 42 is covered by a collection cover 43. The movable brush 42 is assembled by interlocking with each other through a sliding groove and a slider. The bottom end of the movable brush 42 is attached to the surface of the polishing belt 32 and the surface of the polishing strip 33. The movable brush 42 is made of flexible material. In order to bring more effects on the original basis, the movable brush 42 and the collection cover 43 can remove metal debris from the surface of the grinding belt 32 and the grinding strip 33 and prevent it from adhering to their surface. When the lifting frame 53 deflects along the mounting shaft 51, the movable connection between the movable brush 42 and the movable groove 41 ensures that the bottom surface of the movable brush 42 is always in contact with the surface of the grinding belt 32 and the grinding strip 33, so as to keep the surface of the grinding belt 32 and the grinding strip 33 clean at all times.

[0050] A drive assembly 6 is fixedly connected to the inner side of the clamping arm 21. The drive assembly 6 includes a track groove 62. The track groove 62 is set in an arc shape. The center of the arc of the track groove 62 and the center of the mounting shaft 51 are concentric circles in different planes. A traction rod 63 is embedded inside the track groove 62. The traction rod 63 is embedded inside the adjusting column 61. The adjusting column 61 is fixedly connected to the top of the lifting frame 53. In addition, in order to limit the trajectory of the lifting frame 53, the movement range of the traction rod 63 is controlled by the track groove 62, which further limits the deflection angle of the lifting frame 53. By controlling the angle, overlapping contact can be avoided when the grinding belt 32 changes shape. At the same time, the traction rod 63 restricts the position of the adjusting column 61, and the stability of the traction rod 63 in the track groove 62 is also better.

[0051] A lightweight thermoformed integrated door ring processing system includes a door ring body 14, a door ring groove 15, an outer edge 9, an inner edge 7, and a connecting part 8. The outer edge 9 is welded to the outer surface of the door ring body 14, and the inner edge 7 is provided on the inner wall of the door ring body 14. The connecting part 8 is welded at the bend of the inner edge 7. The door ring body 14, the outer edge 9, the inner edge 7, and the connecting part 8 are all connected by laser welding.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight thermoforming integrated door ring processing system, comprising a processing base (11), characterized in that: The door ring system includes a processing base (11) and a processing robot arm (12) for processing the door ring. A feeding device (13) is installed on the upper surface of the processing base (11). The upper surface of the feeding device (13) is on which the car door ring body (14) is placed. The feeding device (13) is used to transport the car door ring body (14). A door ring groove (15) is opened on the inner side of the car door ring body (14). The top of the processing robot arm (12) is equipped with a clamping arm (21), and a limiting arm (22) is connected to one side of the clamping arm (21). A processing component (3) is provided on the inner wall of the clamping arm (21) and the limiting arm (22). The processing component (3) includes a positioning frame (34). The positioning frame (34) is connected to the inner wall of the clamping arm (21) and the limiting arm (22). The positioning frame (34) is divided into two sections. One section is fixedly connected to the inner wall of the clamping arm (21) and the limiting arm (22), and the other section is attached to the inner wall of the clamping arm (21) and the limiting arm (22). The two sections of the positioning frame (34) are connected by a hinge shaft. A transmission roller (31) is installed on the inner side of the positioning frame (34). A grinding belt (32) is wrapped around the surface of the transmission roller (31). A grinding strip (33) is provided on the outer surface of the grinding belt (32). A progressive component (5) is also provided on the inner wall of the clamping arm (21) and the limiting arm (22). The progressive component (5) includes a servo motor (52). The output end of the servo motor (52) is connected to a mounting shaft (51). A lifting frame (53) is fixedly connected to the outer surface of the mounting shaft (51). A transmission rod (54) is fixedly connected to one side of the lifting frame (53), and a lifting cover (56) is connected to the end of the transmission rod (54). A roller rod (57) is embedded inside the transmission roller (31), and the lifting cover (56) wraps around both ends of the roller rod (57). A positioning column (55) is fixedly connected to the outside of the positioning frame (34), and a pressing column (58) is fixedly connected to the other end of the positioning column (55). The pressing column (58) is pressed against the upper surface of the grinding belt (32) and the grinding strip (33).

2. The lightweight thermoforming integrated door ring processing system according to claim 1, characterized in that: The feeding device (13) includes a drive motor, a conveyor belt, and an infrared sensor. The drive motor drives the conveyor belt to rotate, thereby transporting the car door ring body (14). After being transported to the processing area and monitored by the infrared sensor, the transport stops.

3. The lightweight thermoforming integrated door ring processing system according to claim 1, characterized in that: The transmission roller (31) is driven by a hub motor, which drives the transmission roller (31) to rotate and the inner embedded roller (57) to rotate accordingly. The grinding strip (33) is sleeved on the surface of the grinding belt (32), and the two contact surfaces are attracted and adhered together by a magnet.

4. The lightweight thermoforming integrated door ring processing system according to claim 1, characterized in that: The top end of the lifting frame (53) is fixedly connected to a chip removal assembly (4). The chip removal assembly (4) includes a movable groove (41). The top end of the lifting frame (53) is fixedly connected to the movable groove (41). A set of through slots is opened inside the movable groove (41). A movable brush (42) is embedded in the through slot. The movable groove (41) and the movable brush (42) are longitudinally slidably connected through the through slot.

5. The lightweight thermoforming integrated door ring processing system according to claim 4, characterized in that: The top of the movable brush (42) is covered with a collection cover (43). The movable brush (42) is assembled by interlocking with each other through grooves and sliders. The bottom of the movable brush (42) is attached to the surface of the grinding belt (32) and the surface of the grinding strip (33). The movable brush (42) is made of flexible material.

6. The lightweight thermoforming integrated door ring processing system according to claim 1, characterized in that: The inner side of the clamping arm (21) is fixedly connected to a drive assembly (6), the drive assembly (6) includes a track groove (62), the inner side of the clamping arm (21) is fixedly connected to a track groove (62), the track groove (62) is set in an arc shape, and the center of the arc shape of the track groove (62) and the center of the mounting shaft (51) are concentric circles in different planes.

7. A lightweight thermoforming integrated door ring processing system according to claim 6, characterized in that: The track groove (62) has a traction rod (63) embedded inside, the traction rod (63) is embedded inside the adjusting column (61), and the adjusting column (61) is fixedly connected to the top of the lifting frame (53).

8. The lightweight thermoforming integrated door ring processing system according to claim 1, characterized in that: When the lifting frame (53) deflects upward along the mounting shaft (51), the lifting cover (56) pulls the roller (57), causing the roller (57) to rise. The height of the transmission roller (31) on one side of the lifting frame (53) rises, which in turn drives the grinding strip (33) to rise. The lower pressure column (58) remains pressed against the upper surface of the grinding strip (33). The mounting shaft (51) and the servo motor (52) are located directly below the lower pressure column (58). The lower pressure column (58) and the positioning column (55) are rotatably connected.

9. The door ring of the lightweight thermoforming integrated door ring processing system according to any one of claims 1-8, characterized in that: The system includes a car door ring body (14), a door ring groove (15), an outer edge (9), an inner edge (7), and a connecting part (8). The outer edge (9) is welded to the outer surface of the car door ring body (14), and the inner wall of the car door ring body (14) is provided with an inner edge (7). A connecting part (8) is welded at the bend of the inner edge (7). The car door ring body (14), the outer edge (9), the inner edge (7), and the connecting part (8) are all connected by laser welding.

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