A sunroof guide rail top bend device capable of adjusting the top bend curvature

Abstract

The utility model discloses a kind of automobile sunroof guide rail top bending device with adjustable top bending radian, it is related to automobile sunroof guide rail technical field, including workbench, the top of workbench is provided with bending column, the top of workbench is provided with arc slot, guide wheel that can be moved along arc slot is arranged on the workbench, top bending driving component for driving guide wheel to move along arc slot to be used to top bending guide rail is further provided on the workbench, the top bending radian of guide rail is defined, and radian adjusting component is provided on the workbench, the side of bending column is provided with side plate, by starting second motor, the output end of second motor drives first gear to rotate, the rotation of first gear will drive arc rack to slide in arc seat. With the sliding of arc rack in arc seat, the abutment portion of arc rack side will change position accordingly. By changing the position of abutment portion, the accurate adjustment and control to guide rail top bending radian are realized.

Description

Technical Field

[0001] This utility model relates to the field of automotive sunroof guide rail technology, specifically to an adjustable sunroof guide rail top bending device. Background Technology

[0002] As a core load-bearing component of the sunroof system, the sunroof guide rail plays a crucial role in supporting the sunroof's sliding, sealing, and positioning. The shape accuracy of the guide rail directly determines the sunroof system's sealing performance, waterproofing performance, and service life. During use, the guide rail must withstand the combined effects of repeated sliding friction loads, wind pressure loads, and dynamic vibration loads. Its bending forming accuracy (including bending radius tolerance, straightness error, and cross-sectional distortion rate) is a core technical indicator affecting the sunroof's sealing performance (such as dynamic anti-leakage capability) and structural fatigue life.

[0003] Chinese patent publication number CN212264239U discloses a sunroof guide rail bending device, including a worktable, a bending assembly, and a clamp assembly. Through the coordinated use of the first fixing assembly, the second fixing assembly, and the bending assembly, it can not only process the head of the sunroof guide rail, but also process the head of the sunroof guide rail from a vertical shape to an arc-shaped bend of a specified curvature according to the arc requirements of the guide rail, thereby better meeting the bending requirements of the sunroof guide rail.

[0004] In use, the aforementioned patent document describes a method where an external control button extends a cylinder, causing one side of the fixed plate to move to the right. The sliding rod, fastening nut, sliding groove, and sliding plate then cause the fixed plate to rotate counter-clockwise, which in turn causes the chuck assembly to rotate the guide rail head counter-clockwise, thus achieving the bending of the sunroof guide rail head. However, during processing, the curvature adjustment relies on the coordination of the sliding column, sliding plate, and angle markings. Because there is no rigid locking mechanism between the sliding plate and the sliding column, displacement or rebound can easily occur due to external forces during adjustment, causing the actual processing accuracy of the bending curvature to deviate from the set value. Utility Model Content

[0005] To address the aforementioned issues, an adjustable top curvature automotive sunroof guide rail bending device is provided. By incorporating a curvature adjustment component to limit the top curvature of the guide rail, the technical problem of easy deviation from the machining accuracy setting during adjustment is solved.

[0006] To address the problems of existing technologies, this utility model provides an adjustable top-bending device for automotive sunroof guide rails, comprising a worktable, a bending column at the top of the worktable, an arc-shaped groove at the top of the worktable, a guide wheel movable along the arc-shaped groove on the worktable, a top-bending drive component for driving the guide wheel to move along the arc-shaped groove to bend the guide rail, an arc adjustment component for limiting the top-bending arc of the guide rail on the worktable, a side plate on one side of the bending column, a first threaded rod threadedly connected to the side plate, a first turntable at one end of the first threaded rod, a first pressure plate at the other end of the first threaded rod, a movable plate movably mounted on the worktable, a lateral drive component for driving the movable plate to move laterally, and a clamping assembly for clamping the guide rail on the movable plate.

[0007] Preferably, the arc adjustment component includes an arc-shaped seat, an arc-shaped rack, a second motor, and a first gear; the arc-shaped seat is disposed on the worktable and located on the side away from the guide wheel; the arc-shaped rack is slidably disposed in the arc-shaped seat, and an abutment portion is provided on one side of the arc-shaped rack; the second motor is disposed at the bottom of the worktable; the first gear is disposed at the output end of the second motor, and the first gear meshes with the arc-shaped rack.

[0008] Preferably, the top bending drive component includes a base frame, an arc-shaped slider, and a mounting block; the base frame is disposed at the bottom of the workbench, a first motor is disposed at the bottom of the base frame, a rotating rod is disposed at the output end of the first motor, and a connecting column is disposed at the top of the rotating rod; the arc-shaped slider is slidably disposed in an arc-shaped groove, and the bottom of the arc-shaped slider is connected to the top of the connecting column; the mounting block is disposed at the bottom of the arc-shaped slider, the bottom of the guide wheel is connected to the top of the mounting block, and one side of the mounting block is also provided with an abutment side for abutting with the abutment part.

[0009] Preferably, the clamping assembly includes a clamping seat, a horizontal plate, a third threaded rod, and a guide post; the clamping seat is disposed on the top of the movable plate; the horizontal plate is disposed on the top of the movable plate and located on one side of the clamping seat; the third threaded rod is threaded onto the horizontal plate, one end of the third threaded rod is provided with a second pressure plate, and the other end of the third threaded rod is provided with a second turntable; the guide post is movably disposed on the horizontal plate, and one end of the guide post is connected to one side of the horizontal plate.

[0010] Preferably, the transverse driving component includes a second threaded rod, a third motor, and a driving block; a fixing groove is provided on the worktable, and the second threaded rod is transversely disposed in the fixing groove; the third motor is disposed on one side of the worktable, and the output end of the third motor is connected to one end of the second threaded rod; the driving block is threaded onto the second threaded rod, and the top of the driving block is connected to the bottom of the moving plate.

[0011] Preferably, a limiting slider is provided at the bottom of the first pressure plate, and a limiting groove is provided on the worktable for the limiting slider to move.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. By starting the second motor, the output of the second motor drives the first gear to rotate. Since the first gear meshes with the arc-shaped rack, the rotation of the first gear drives the arc-shaped rack to slide within the arc-shaped seat. As the arc-shaped rack slides within the arc-shaped seat, the position of the contact part on one side of the arc-shaped rack changes accordingly. The position of the contact part determines the maximum degree of bending that the guide rail can achieve during the bending process. By changing the position of the contact part, precise adjustment and control of the bending curvature of the guide rail can be achieved, meeting the processing requirements of different bending curvatures for automotive sunroof guide rails.

[0014] 2. By rotating the second turntable, the second turntable drives the third threaded rod to move along its own axis. As the third threaded rod moves, the second pressure plate connected to one end of the third threaded rod also moves towards the clamping seat. As the second turntable continues to rotate, the second pressure plate gradually approaches and presses against the guide rail, thereby fixing the guide rail and preventing it from slipping or deforming during bending. Attached Figure Description

[0015] Figure 1 A three-dimensional diagram of an adjustable sunroof guide rail with adjustable top curvature. Figure 1 .

[0016] Figure 2 A three-dimensional diagram of an adjustable sunroof guide rail with adjustable top curvature. Figure 2 .

[0017] Figure 3 This is a three-dimensional view of the worktable, base frame, first motor, and rotating rod in an adjustable sunroof guide rail bending device.

[0018] Figure 4 This is a three-dimensional diagram of the guide wheel, arc-shaped seat, and arc-shaped rack in an adjustable sunroof guide rail bending device.

[0019] Figure 5This is a three-dimensional diagram of the arc-shaped seat and arc-shaped rack in an adjustable sunroof guide rail bending device.

[0020] Figure 6 This is a three-dimensional view of a movable plate, clamping seat, horizontal plate, and second pressure plate in an adjustable sunroof guide rail bending device.

[0021] The following are the labels in the diagram: 1. Workbench; 2. Bending column; 3. Guide wheel; 31. Base frame; 32. First motor; 33. Rotating rod; 34. Connecting column; 35. Arc-shaped slider; 36. Mounting block; 37. Arc-shaped seat; 38. Arc-shaped rack; 39. Second motor; 310. First gear; 4. Side plate; 5. First threaded rod; 6. First turntable; 7. First pressure plate; 8. Moving plate; 81. Second threaded rod; 82. Third motor; 83. Drive block; 9. Clamping assembly; 91. Clamping seat; 92. Horizontal plate; 93. Third threaded rod; 94. Second turntable; 95. Second pressure plate; 96. Guide column. Detailed Implementation

[0022] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0023] See Figures 1 to 6 As shown, this utility model provides an adjustable top-bending device for a car sunroof guide rail, including a worktable 1. A bending column 2 is provided on the top of the worktable 1. An arc-shaped groove is opened on the top of the worktable 1. A guide wheel 3 that can move along the arc-shaped groove is provided on the worktable 1. A top-bending drive component is also provided on the worktable 1 for driving the guide wheel 3 to move along the arc-shaped groove to bend the guide rail. An arc adjustment component is provided on the worktable 1 for limiting the top-bending arc of the guide rail. A side plate 4 is provided on one side of the bending column 2. A first threaded rod 5 is threadedly connected to the side plate 4. A first turntable 6 is provided at one end of the first threaded rod 5. A first pressure plate 7 is provided at the other end of the first threaded rod 5. A movable plate 8 is also movably provided on the worktable 1. A lateral drive component is also provided on the worktable 1 for driving the movable plate 8 to move laterally. A clamping assembly 9 for clamping the guide rail is provided on the movable plate 8.

[0024] The guide rail to be processed is placed on the workbench 1, with one end of the guide rail abutting against the side of the bending column 2. The operator rotates the first turntable 6, causing the first threaded rod 5 to rotate, which moves the first pressure plate 7 towards the guide rail, pressing the guide rail firmly against the bending column 2 to ensure no deviation during bending. The other end of the guide rail is fixed by the clamping assembly 9 to prevent the guide rail from sliding or deforming during bending. Subsequently, the top-bending drive component is activated, driving the guide wheel 3 to move along the arc-shaped groove. As the guide wheel 3 moves along the arc-shaped groove, it gradually applies pressure to the guide rail. Since the movement trajectory of the guide wheel 3 is along the arc-shaped groove, the guide rail will bend and deform under the pressure of the guide wheel 3, thereby achieving the top-bending operation. By setting the curvature adjustment component, the guide rail is bent into a set curvature. By adjusting the curvature adjustment component, it can adapt to the curvature requirements of sunroof guide rails of different vehicle models, improving practicality.

[0025] See Figures 3 to 5 As shown, the curvature adjustment component includes an arc-shaped seat 37, an arc-shaped rack 38, a second motor 39, and a first gear 310; the arc-shaped seat 37 is disposed on the worktable 1 and located on the side away from the guide wheel 3; the arc-shaped rack 38 is slidably disposed in the arc-shaped seat 37, and an abutment part is provided on one side of the arc-shaped rack 38; the second motor 39 is disposed at the bottom of the worktable 1; the first gear 310 is disposed at the output end of the second motor 39, and the first gear 310 meshes with the arc-shaped rack 38.

[0026] When the top curvature of the guide rail needs adjustment, the second motor 39 is activated, and its output drives the first gear 310 to rotate. Since the first gear 310 meshes with the arc-shaped rack 38, its rotation drives the rack 38 to slide within the arc-shaped seat 37. As the rack 38 slides within the seat 37, the abutment portion on one side of the rack 38 changes position accordingly. By controlling the rotation direction and number of rotations of the second motor 39, the position of the abutment portion can be precisely adjusted. The position of the abutment portion determines the maximum curvature the guide rail can achieve during the top curvature process. By changing the position of the abutment portion, precise adjustment and control of the top curvature of the guide rail can be achieved, meeting the processing requirements for the top curvature of different automotive sunroof guide rails.

[0027] See Figures 2 to 5As shown, the top bending drive component includes a base frame 31, an arc-shaped slider 35, and a mounting block 36. The base frame 31 is located at the bottom of the workbench 1, and a first motor 32 is located at the bottom of the base frame 31. A rotating rod 33 is located at the output end of the first motor 32, and a connecting column 34 is located at the top of the rotating rod 33. The arc-shaped slider 35 is slidably disposed in an arc-shaped groove, and the bottom of the arc-shaped slider 35 is connected to the top of the connecting column 34. The mounting block 36 is located at the bottom of the arc-shaped slider 35, and the bottom of the guide wheel 3 is connected to the top of the mounting block 36. One side of the mounting block 36 is also provided with an abutment side for abutting with the abutment part.

[0028] When the guide rail needs to be bent, the first motor 32 is started. The output of the first motor 32 drives the rotating rod 33 to rotate. Since the top of the rotating rod 33 is provided with a connecting post 34, and the top of the connecting post 34 is connected to the bottom of the arc-shaped slider 35, the rotation of the rotating rod 33 will cause the connecting post 34 to make a circular motion. The circular motion of the connecting post 34 causes the arc-shaped slider 35 connected to it to slide in the arc-shaped groove on the top of the worktable 1. As the arc-shaped slider 35 slides in the arc-shaped groove, the mounting block 36 and the guide wheel 3 will also move accordingly. During the movement, the guide wheel 3 gradually approaches the guide rail and applies top pressure to the guide rail, causing the guide rail to begin to bend at the bending post 2. During the process of the guide wheel 3 pushing the guide rail to bend, the abutting side of the mounting block 36 will gradually approach the abutting part of the arc-shaped rack 38. When the abutting side of the mounting block 36 abuts against the abutting part of the arc-shaped rack 38, the guide wheel 3 stops pushing the guide rail, and the curvature of the guide rail reaches the preset arc, thus achieving precise control of the top curvature of the guide rail.

[0029] See Figure 6 As shown, the clamping assembly 9 includes a clamping seat 91, a horizontal plate 92, a third threaded rod 93, and a guide post 96; the clamping seat 91 is disposed on the top of the movable plate 8; the horizontal plate 92 is disposed on the top of the movable plate 8 and located on one side of the clamping seat 91; the third threaded rod 93 is threaded onto the horizontal plate 92, one end of the third threaded rod 93 is provided with a second pressure plate 95, and the other end of the third threaded rod 93 is provided with a second turntable 94; the guide post 96 is movably disposed on the horizontal plate 92, and one end of the guide post 96 is connected to one side of the horizontal plate 92.

[0030] By placing one end of the guide rail on the clamping seat 91, rotating the second turntable 94 causes the third threaded rod 93 to move along its own axis. As the third threaded rod 93 moves, the second pressure plate 95, connected to one end of the third threaded rod 93, also moves towards the clamping seat 91. During the movement of the second pressure plate 95, the guide post 96 acts as a guide, ensuring the stability of the second pressure plate 95 during movement. As the second turntable 94 continues to rotate, the second pressure plate 95 gradually approaches and presses against the guide rail, thereby fixing the guide rail and preventing it from slipping or deforming during bending.

[0031] See Figure 6 As shown, the transverse drive component includes a second threaded rod 81, a third motor 82, and a drive block 83; a fixing groove is provided on the worktable 1, and the second threaded rod 81 is transversely arranged in the fixing groove; the third motor 82 is arranged on one side of the worktable 1, and the output end of the third motor 82 is connected to one end of the second threaded rod 81; the drive block 83 is threaded onto the second threaded rod 81, and the top of the drive block 83 is connected to the bottom of the moving plate 8.

[0032] By activating the third motor 82, the second threaded rod 81 is rotated. The rotation of the second threaded rod 81 causes the drive block 83 to move, which in turn moves the moving plate 8, thereby allowing the position of the moving plate 8 to be adjusted according to the size of the guide rail.

[0033] See Figure 1 and Figure 2 As shown, the bottom of the first pressure plate 7 is provided with a limit slider, and the worktable 1 is provided with a limit groove for the limit slider to move.

[0034] When the first pressure plate 7 moves in the direction of the guide rail, the limiting slider at the bottom of the first pressure plate 7 will move on the limiting groove, thereby improving the stability of the movement of the first pressure plate 7.

[0035] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An adjustable top-bending device for a car sunroof guide rail, characterized in that, Includes a workbench (1), a bending column (2) is provided on the top of the workbench (1), an arc-shaped groove is provided on the top of the workbench (1), a guide wheel (3) that can move along the arc-shaped groove is provided on the workbench (1), a bending drive component for driving the guide wheel (3) to move along the arc-shaped groove for bending the guide rail is also provided on the workbench (1), an arc adjustment component for limiting the bending arc of the guide rail is provided on the workbench (1), and one side of the bending column (2) is provided with A side plate (4) is provided, and a first threaded rod (5) is threadedly connected to the side plate (4). A first turntable (6) is provided at one end of the first threaded rod (5), and a first pressure plate (7) is provided at the other end of the first threaded rod (5). A movable plate (8) is also movably provided on the worktable (1). A transverse driving component for driving the movable plate (8) to move laterally is also provided on the worktable (1). A clamping assembly (9) for clamping the guide rail is provided on the movable plate (8).

2. The adjustable top curvature automotive sunroof guide rail bending device according to claim 1, characterized in that, The arc adjustment component includes an arc-shaped seat (37), an arc-shaped rack (38), a second motor (39), and a first gear (310); The arc-shaped seat (37) is disposed on the workbench (1) and located on the side away from the guide wheel (3); The arc-shaped rack (38) is slidably disposed in the arc-shaped seat (37), and an abutment part is provided on one side of the arc-shaped rack (38); The second motor (39) is located at the bottom of the worktable (1); The first gear (310) is located at the output end of the second motor (39), and the first gear (310) meshes with the arc-shaped rack (38).

3. The adjustable top curvature automotive sunroof guide rail bending device according to claim 1, characterized in that, The top bending drive component includes a base frame (31), an arc-shaped slider (35), and a mounting block (36); The base frame (31) is located at the bottom of the workbench (1). A first motor (32) is located at the bottom of the base frame (31). A rotating rod (33) is located at the output end of the first motor (32). A connecting column (34) is located at the top of the rotating rod (33). The arc-shaped slider (35) is slidably disposed in the arc-shaped groove, and the bottom of the arc-shaped slider (35) is connected to the top of the connecting column (34); The mounting block (36) is located at the bottom of the arc-shaped slider (35), the bottom of the guide wheel (3) is connected to the top of the mounting block (36), and one side of the mounting block (36) is also provided with an abutting side for abutting with the abutting part.

4. The adjustable top curvature automotive sunroof guide rail bending device according to claim 1, characterized in that, The clamping assembly (9) includes a clamping seat (91), a horizontal plate (92), a third threaded rod (93), and a guide post (96); The clamping seat (91) is disposed on the top of the movable plate (8); The horizontal plate (92) is located on the top of the movable plate (8) and on one side of the clamping seat (91); The third threaded rod (93) is threaded on the horizontal plate (92), one end of the third threaded rod (93) is provided with a second pressure plate (95), and the other end of the third threaded rod (93) is provided with a second turntable (94); The guide post (96) is movably mounted on the horizontal plate (92), and one end of the guide post (96) is connected to one side of the horizontal plate (92).

5. The adjustable top curvature automotive sunroof guide rail bending device according to claim 1, characterized in that, The lateral drive component includes a second threaded rod (81), a third motor (82), and a drive block (83); The workbench (1) is provided with a fixing groove, and the second threaded rod (81) is arranged horizontally in the fixing groove; The third motor (82) is located on one side of the workbench (1), and the output end of the third motor (82) is connected to one end of the second threaded rod (81). The drive block (83) is threaded onto the second threaded rod (81), and the top of the drive block (83) is connected to the bottom of the moving plate (8).

6. The adjustable top curvature automotive sunroof guide rail bending device according to claim 1, characterized in that, The bottom of the first pressure plate (7) is provided with a limit slider, and the worktable (1) is provided with a limit groove for the limit slider to move.

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