Aluminum material bending device suitable for sunroof guide rails of various models of automobiles

Abstract

The utility model relates to aluminium material press bending technical field, concretely relates to a kind of aluminium material press bending device suitable for multiple model automobile sunroof guide rail, including bottom plate, the bottom plate is equipped with press bending subassembly, the press bending subassembly includes the sliding slot being opened in bottom plate, slidingly connected with moving plate in the sliding slot, the moving plate is installed with air cylinder, the output shaft of air cylinder is connected with telescopic link, and extrusion block is connected in the end of telescopic link away from air cylinder, the end of bottom plate away from sliding slot is equidistantly provided with several insertion slots, the insertion slot is inserted with baffle column, the top of bottom plate one end is equipped with clamping subassembly, the clamping subassembly includes support column, the first motor is installed on the support column, the output shaft of first motor is connected with bidirectional screw rod, the both ends of bidirectional screw rod are threadedly connected with the clamping plate for clamping automobile sunroof guide rail aluminium material. The present application effectively improves the stability of clamping.

Description

Technical Field

[0001] This utility model relates to the field of aluminum bending technology, specifically to an aluminum bending device applicable to various models of automotive sunroof rails. Background Technology

[0002] The guide rail is a key component of a car sunroof, facilitating its opening and closing. During the manufacturing process, the aluminum material of the guide rail needs to be bent using a bending device. Most existing bending devices use customized molds to bend the sunroof guide rail, lacking flexibility in adjusting the bending position. Furthermore, the varying specifications of existing sunroof guide rails result in poor bending performance when used with different sizes, leading to low efficiency in the bending process.

[0003] Chinese Patent Publication No. CN222288576U discloses a bending device for aluminum car sunroof guide rails. During operation, one end of the aluminum car sunroof guide rail to be bent is first inserted into the cavity inside the positioning seat. The cylinder is activated, and its output end drives the clamping plate downwards vertically in the positioning seat until the bottom of the clamping plate abuts against the surface of the aluminum material to fix it. The right hand pulls the moving plate in the first sliding groove to adjust the position of the stop post. After adjustment, the moving plate is fixed to the base plate with bolts. The motor is activated, and its output shaft drives the threaded rod to rotate. Utilizing the threaded connection between the threaded rod and the moving plate in the second sliding groove, the moving plate moves horizontally to adjust the position of the extrusion block. After adjustment, the hydraulic cylinder is activated, and its output shaft drives the extrusion block to bend the aluminum car sunroof guide rail. However, this device applies pressure to the aluminum material placed on the base plate from above for clamping, while the bending process is performed horizontally. The direction of the bending force differs from the direction of the clamping force, causing the aluminum material to easily shift from its original position during the bending process.

[0004] Therefore, the present invention aims to provide an aluminum bending device applicable to various models of automotive sunroof rails to solve the above problems. Utility Model Content

[0005] To address the aforementioned issues, an aluminum bending device applicable to various automotive sunroof rail models is provided. A first motor in the clamping assembly on the base plate drives a bidirectional threaded rod to clamp the aluminum material on both sides. A moving plate in the bending assembly slides within a sliding groove to adjust the position of the cylinder. The cylinder drives the end of the telescopic rod to apply pressure to the pressing block. A stop post is inserted into a slot at the other end of the base plate to form a limiting structure. This solves the problem that the aluminum material easily shifts from its original position during bending due to different force directions.

[0006] To address the problems of existing technologies, this utility model provides an aluminum bending device applicable to various models of automotive sunroof guide rails. The device includes a base plate, on which a bending assembly is provided. The bending assembly includes a sliding groove formed in the base plate, a movable plate slidably connected in the sliding groove, a cylinder mounted on the movable plate, and a telescopic rod connected to the output shaft of the cylinder. A pressing block is connected to the end of the telescopic rod away from the cylinder. Several slots are equidistantly formed at the end of the base plate away from the sliding groove, and stop posts are inserted into the slots. A clamping assembly is provided at the top end of the base plate, including a support column. A first motor is mounted on the support column, and the output shaft of the first motor is connected to a bidirectional threaded rod. Clamping plates for clamping the aluminum material of the automotive sunroof guide rail are threaded to both ends of the bidirectional threaded rod.

[0007] Preferably, a second motor is installed at one end of the base plate, and the output shaft of the second motor is connected to a threaded rod. The threaded rod passes through the base plate and through the entire sliding groove. A threaded through hole adapted to the threaded rod is provided on the movable plate, and the threaded rod is threadedly connected to the threaded through hole.

[0008] Preferably, the inner wall of the sliding groove is provided with limiting blocks on both sides, and the two ends of the moving plate are provided with through holes adapted to the limiting blocks, and the limiting blocks are inserted into the through holes.

[0009] Preferably, the bottom of the stop post is provided with a first locking block, and a second locking block is slidably connected in the slot. When the stop post is inserted into the slot, the first locking block and the second locking block are in a locking state.

[0010] Preferably, a movable groove for moving the second snap-fit ​​block is provided on the base plate near the slot. A guide rod is provided in the movable groove. A guide through hole adapted to the guide rod is provided on the second snap-fit ​​block. A return spring is sleeved on the guide rod. One end of the return spring is fixedly connected to the inner wall of the movable groove, and the other end of the return spring is fixedly connected to the second snap-fit ​​block.

[0011] Preferably, a limiting rod is fixedly connected to the support column, and a limiting through hole is provided on the clamping plate, with the limiting rod inserted into the limiting through hole.

[0012] Preferably, the end of the extrusion block near the stop post is chamfered.

[0013] Preferably, a protective wall is fixedly connected to the end of the base plate away from the second motor.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This utility model achieves horizontal synchronous clamping through a clamping assembly driven by a bidirectional threaded rod. It applies a horizontal clamping force to the aluminum material by using the opposite movement of the clamping plates at both ends, so that the direction of the clamping force is consistent with the direction of the bending force. This effectively avoids the aluminum material from shifting due to the difference in the direction of the force during the bending process, and significantly improves the processing stability and the accuracy of the finished product.

[0016] 2. This utility model adopts a snap-fit ​​adjustable stop column structure. Through the elastic snap-fit ​​cooperation of the first snap-fit ​​block and the second snap-fit ​​block, the stop column can be quickly installed, removed, and securely fixed in the slot. Operators can flexibly adjust the position of the stop column according to the aluminum material type to match different bending length requirements, while ensuring the impact resistance of the stop column during bending, taking into account both the versatility of the device and the ease of operation.

[0017] 3. This utility model integrates a motor-driven automatic positioning system for a moving plate. A second motor drives a threaded rod to rotate, and combined with the guiding constraints of the limiting block within the sliding groove and the through-hole of the moving plate, precise horizontal displacement of the cylinder and the extrusion block is achieved. This design replaces the traditional manual adjustment method, significantly improving position adjustment efficiency and repeatability, and reducing the impact of human error on bending quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an aluminum bending device applicable to sunroof guide rails of various car models according to this utility model.

[0019] Figure 2 This is a front view of an aluminum bending device applicable to sunroof guide rails of various car models according to this utility model.

[0020] Figure 3 This is a partial sectional view of an aluminum bending device applicable to sunroof guide rails of various car models according to this utility model.

[0021] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle.

[0022] Figure 5 yes Figure 3 Enlarged view of section B in the middle.

[0023] Figure 6 This is a three-dimensional schematic diagram of the clamping component of an aluminum bending device applicable to various models of automotive sunroof guide rails according to this utility model.

[0024] The following are the labels in the diagram: 1. Base plate; 2. Bending assembly; 3. Sliding groove; 4. Moving plate; 5. Cylinder; 6. Extrusion block; 7. Slot; 8. Stop post; 9. Clamping assembly; 10. Support post; 11. First motor; 12. Bidirectional threaded rod; 13. Clamping plate; 14. Second motor; 15. Threaded rod; 16. Limiting block; 17. First locking block; 18. Second locking block; 19. Moving groove; 20. Guide rod; 21. Limiting rod body; 22. Protective wall. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-6 As shown: An aluminum bending device applicable to various models of automotive sunroof guide rails includes a base plate 1, a bending assembly 2 on the base plate 1, a sliding groove 3 on the base plate 1, a movable plate 4 slidably connected in the sliding groove 3, a cylinder 5 mounted on the movable plate 4, a telescopic rod connected to the output shaft of the cylinder 5, a pressing block 6 connected to the end of the telescopic rod away from the cylinder 5, a plurality of slots 7 equidistantly opened at the end of the base plate 1 away from the sliding groove 3, a stop post 8 inserted in the slots 7, a clamping assembly 9 on the top end of the base plate 1, the clamping assembly 9 including a support column 10, a first motor 11 mounted on the support column 10, a bidirectional threaded rod 12 connected to the output shaft of the first motor 11, and clamping plates 13 for clamping the aluminum material of the automotive sunroof guide rail threaded at both ends of the bidirectional threaded rod 12.

[0027] In existing technology, aluminum material placed on a base plate 1 is clamped by applying pressure from above. However, during bending, the aluminum material is bent horizontally. The direction of the bending force is different from that of the clamping force, causing the aluminum material to easily shift from its original position during bending. To solve this problem, in this application, the base plate 1 serves as the supporting structure for the entire device, providing a foundation for the installation and operation of other components. The bending assembly 2 achieves position adjustment through a sliding connection between a sliding groove 3 and a moving plate 4. When the moving plate 4 slides within the sliding groove 3, it can change the horizontal position of the cylinder 5. After the cylinder 5 is activated, it drives the telescopic rod to move linearly through the output shaft. The pressing block 6 at the end of the telescopic rod applies pressure or releases pressure on the aluminum material of the car sunroof guide rail as the telescopic rod advances or retracts, thereby completing the bending or resetting action. Multiple slots 7 are provided at the other end of the base plate 1 for flexibly installing stop posts 8. After the stop posts 8 are inserted into slots 7 at different positions, they can form a limiting structure, restricting the range of movement of the aluminum material during bending and ensuring the accuracy of the bending angle.

[0028] The clamping assembly 9 is fixed to one end of the top of the base plate 1 via the support column 10. After the first motor 11 on the support column 10 is started, it drives the bidirectional threaded rod 12 to rotate. The threads at both ends of the bidirectional threaded rod 12 turn in opposite directions, so that the two clamping plates 13 connected by the threads move synchronously towards or in opposite directions when the bidirectional threaded rod 12 rotates. When the two clamping plates 13 move towards each other, they can clamp the two sides of the aluminum material of the car sunroof guide rail to prevent it from sliding and shifting during the bending process; when they move in opposite directions, the clamping state is released, making it easy to take out the finished product or put in the material to be processed.

[0029] In the entire workflow, the operator first adjusts the position of the moving plate 4 within the sliding groove 3 according to the aluminum material type, and inserts the stop post 8 into the corresponding slot 7 to match the bending length requirements. Then, the clamping plate 13 is driven by the bidirectional threaded rod 12 of the clamping assembly 9 to clamp the aluminum material. The cylinder 5 is then activated to push the extrusion block 6 to apply directional pressure to the aluminum material, causing it to form a specific bending angle under the constraint of the stop post 8. After bending is complete, the cylinder 5 retracts, the clamping plate 13 releases, and the operator can remove the formed aluminum material and repeat the above steps for continuous processing.

[0030] Reference Figures 1-5 As shown: A second motor 14 is installed at one end of the base plate 1. The output shaft of the second motor 14 is connected to a threaded rod 15. The threaded rod 15 passes through the base plate 1 and through the entire sliding groove 3. A threaded through hole adapted to the threaded rod 15 is opened on the moving plate 4. The threaded rod 15 is threadedly connected to the threaded through hole.

[0031] A second motor 14 mounted at one end of the base plate 1 drives a threaded rod 15 to rotate via its output shaft. The threaded rod 15 passes through the base plate 1 and extends through the entire sliding groove 3. When the threaded rod 15 rotates under the drive of the second motor 14, the moving plate 4 moves linearly along the sliding groove 3 through the threaded engagement of the threaded through-hole with the threaded rod 15. The forward or reverse rotation of the threaded rod 15 determines the forward or backward direction of the moving plate 4 within the sliding groove 3, thereby achieving automatic adjustment of the horizontal position of the cylinder 5 and the extrusion block 6.

[0032] Reference Figure 5 As shown: Limiting blocks 16 are provided on both sides of the inner wall of the sliding groove 3, and through holes adapted to the limiting blocks 16 are opened at both ends of the moving plate 4, and the limiting blocks 16 are inserted into the through holes.

[0033] The limiting blocks 16 on both sides of the inner wall of the sliding groove 3 form a mating structure with the through holes at both ends of the moving plate 4. After the limiting blocks 16 are inserted into the through holes of the moving plate 4, the limiting blocks 16 physically constrain the lateral movement range of the moving plate 4 through the through holes when the moving plate 4 slides along the sliding groove 3. When the moving plate 4 moves horizontally under the action of the threaded rod 15 driven by the second motor 14, the through holes slide along the surface of the limiting blocks 16, restricting the displacement degree of freedom of the moving plate 4 in the direction perpendicular to the sliding groove 3, and preventing the moving plate 4 from deviating or tilting during the sliding process.

[0034] Reference Figures 1-4 As shown: The bottom of the stop post 8 is provided with a first locking block 17, and the slot 7 is slidably connected with a second locking block 18. When the stop post 8 is inserted into the slot 7, the first locking block 17 and the second locking block 18 are in a locking state.

[0035] The first locking block 17 at the bottom of the stop post 8 and the second locking block 18, which is slidably connected in the slot 7, form a locking state when the stop post 8 is inserted into the slot 7. When the operator vertically inserts the stop post 8 into the slot 7 on the base plate 1, the first locking block 17 and the second locking block 18 come into contact with each other and slide through shape matching or inclined guiding action until the protrusions or grooves of the first locking block 17 and the second locking block 18 are fully engaged, at which point they enter a stable locking state. The locking state is maintained by the friction or mechanical interlocking structure between the first locking block 17 and the second locking block 18, preventing the stop post 8 from dislodging from the slot 7 due to aluminum material compression or vibration during bending.

[0036] Reference Figures 1-6 As shown: A movable groove 19 is provided on the base plate 1 near the slot 7 for the second snap-fit ​​block 18 to move. A guide rod 20 is provided in the movable groove 19. A guide through hole adapted to the guide rod 20 is provided on the second snap-fit ​​block 18. A return spring is sleeved on the guide rod 20. One end of the return spring is fixedly connected to the inner wall of the movable groove 19, and the other end of the return spring is fixedly connected to the second snap-fit ​​block 18.

[0037] A movable groove 19, located near the slot 7 on the base plate 1, provides space for the second locking block 18 to slide horizontally. A guide rod 20 installed in the movable groove 19 passes through the second locking block 18 and limits its sliding direction. When the second locking block 18 moves along the axis of the guide rod 20 within the movable groove 19, one end of the return spring is fixed to the inner wall of the movable groove 19, and the other end is connected to the second locking block 18, so that the second locking block 18 is held in its initial position by the elastic force of the return spring when no external force is applied. When the stop post 8 is inserted into the slot 7, the first locking block 17 at the bottom of the stop post 8 contacts the second locking block 18 and applies pressure, pushing the second locking block 18 to slide along the guide rod 20 toward the inner wall of the movable groove 19, while compressing the return spring until the locking structure of the first locking block 17 and the second locking block 18 is fully engaged.

[0038] When it is necessary to remove the retaining post 8, the operator controls the second locking block 18 to move against the reset spring, so that the first locking block 17 and the second locking block 18 are disengaged. At this time, the retaining post can be pulled out of the slot 7.

[0039] Reference Figure 6 As shown: A limiting rod 21 is fixedly connected to the support column 10, and a limiting through hole is opened on the clamping plate 13, in which the limiting rod 21 is inserted.

[0040] The limiting rod 21 fixedly connected to the support column 10 and the limiting through hole opened on the clamping plate 13 together constitute the linear guide mechanism of the clamping assembly 9. When the first motor 11 drives the bidirectional threaded rod 12 to rotate, the clamping plate 13, which is threaded to both ends of the bidirectional threaded rod 12, tends to move synchronously in opposite directions due to the difference in the direction of the threads. At this time, the limiting rod 21 passes through the limiting through hole of the clamping plate 13 to form a physical constraint structure. As a rigid guide element fixed to the support column 10, the axis of the limiting rod 21 is parallel to the axis of the bidirectional threaded rod 12. When the clamping plate 13 is driven by the bidirectional threaded rod 12, the inner wall of the limiting through hole contacts the outer surface of the limiting rod 21 and generates sliding friction. This friction converts the rotational motion component of the clamping plate 13 into linear motion along the axis of the limiting rod 21, thereby ensuring that the clamping plate 13 can only translate along the preset path, effectively avoiding the clamping plate 13 from deflection or tilting due to the torque generated by the thread engagement.

[0041] The end of the extrusion block 6 near the stop post 8 is chamfered.

[0042] During the bending process, the extrusion block 6, as the component directly applying bending force, first contacts the area of ​​the aluminum material to be bent with its chamfered end structure. The beveled or rounded surface formed by the chamfer replaces the traditional right-angled edge, changing the contact mode between the extrusion block 6 and the aluminum material from sharp line contact or point contact to a gradual surface contact. This change in contact mode can significantly reduce the local stress concentration phenomenon on the aluminum surface during the initial pressure stage, avoiding material tearing or surface indentation caused by sudden stress changes.

[0043] Reference Figure 6 As shown: A protective wall 22 is fixedly connected to the end of the base plate 1 away from the second motor 14.

[0044] The protective barrier 22 and the clamping assembly 9 form a collaborative protection mechanism, creating a safety barrier for operators. Even in the event of abnormal conditions such as aluminum material breakage or clamping failure, the protective barrier 22 can intercept flying debris or out-of-control aluminum material, reducing the risk of personal injury and the probability of equipment damage.

[0045] Working principle: The base plate 1 serves as the support structure for the device, bearing the bending assembly 2 and the clamping assembly 9. The bending assembly 2 adjusts the position of the cylinder 5 by moving the sliding plate 4 horizontally along the sliding groove 3. The output shaft of the cylinder 5 drives the telescopic rod to apply horizontal pressure to the aluminum material by the extrusion block 6, which, in conjunction with the stop post 8, achieves precise bending. The stop post 8 is fixed by the snap-fit ​​structure between the first snap-fit ​​block 17 at the bottom and the second snap-fit ​​block 18 in the slot 7. Disassembly requires manual unlocking of the reset spring.

[0046] The clamping assembly 9 is fixed by the support column 10. The first motor 11 drives the bidirectional threaded rod 12 to rotate, so that the clamping plates 13 at both ends clamp the aluminum material synchronously towards each other along the limiting rod. Reverse rotation will separate them. The second motor 14 drives the moving plate 4 to move along the sliding groove 3 through the threaded rod 15. The limiting block 16 in the sliding groove 3 passes through the hole of the moving plate 4 to prevent displacement and ensure the stability of the movement trajectory of the cylinder 5.

[0047] The contact end of the extrusion block 6 is chamfered to form a bevel or arc surface, transforming point-line contact into progressive surface contact and reducing the risk of stress concentration. The protective wall 22 is fixed to the end of the base plate 1 and together with the clamping assembly 9, forms a safety protection structure to intercept splashes and out-of-control parts. All components work together through threaded connections, snap-fit ​​connections, and guiding mechanisms to ensure bending accuracy and operational safety.

[0048] 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 aluminum bending device applicable to various models of automotive sunroof guide rails, comprising a base plate (1), wherein a bending assembly (2) is provided on the base plate (1), characterized in that, The bending assembly (2) includes a sliding groove (3) on the base plate (1), a movable plate (4) is slidably connected in the sliding groove (3), a cylinder (5) is installed on the movable plate (4), the output shaft of the cylinder (5) is connected to a telescopic rod, and the end of the telescopic rod away from the cylinder (5) is connected to an extrusion block (6). The end of the base plate (1) away from the sliding groove (3) is provided with several slots (7) at equal intervals, and a stop post (8) is inserted in the slot (7). The top end of the base plate (1) is provided with a clamping assembly (9), the clamping assembly (9) includes a support column (10), a first motor (11) is installed on the support column (10), the output shaft of the first motor (11) is connected to a bidirectional threaded rod (12), and the two ends of the bidirectional threaded rod (12) are threadedly connected to clamping plates (13) for clamping aluminum materials for car sunroof guide rails.

2. The aluminum bending device for sunroof guide rails of various car models according to claim 1, characterized in that, A second motor (14) is installed at one end of the base plate (1). The output shaft of the second motor (14) is connected to a threaded rod (15). The threaded rod (15) passes through the base plate (1) and through the entire sliding groove (3). A threaded through hole adapted to the threaded rod (15) is opened on the moving plate (4). The threaded rod (15) is threadedly connected to the threaded through hole.

3. The aluminum bending device for sunroof guide rails of various car models according to claim 2, characterized in that, The sliding groove (3) has limit blocks (16) on both sides of its inner wall, and the moving plate (4) has through holes at both ends that are adapted to the limit blocks (16), and the limit blocks (16) are inserted into the through holes.

4. The aluminum bending device for various types of automotive sunroof guide rails according to claim 1, characterized in that, The bottom of the stop post (8) is provided with a first snap-fit ​​block (17), and a second snap-fit ​​block (18) is slidably connected in the slot (7). When the stop post (8) is inserted into the slot (7), the first snap-fit ​​block (17) and the second snap-fit ​​block (18) are in a snap-fit ​​state.

5. The aluminum bending device for sunroof guide rails of various car models according to claim 4, characterized in that, The base plate (1) has a moving groove (19) near the slot (7) for the second snap-fit ​​block (18) to move. A guide rod (20) is provided in the moving groove (19). The second snap-fit ​​block (18) has a guide through hole that matches the guide rod (20). A return spring is sleeved on the guide rod (20). One end of the return spring is fixedly connected to the inner wall of the moving groove (19), and the other end of the return spring is fixedly connected to the second snap-fit ​​block (18).

6. The aluminum bending device for various types of automotive sunroof guide rails according to claim 1, characterized in that, A limiting rod (21) is fixedly connected to the support column (10), and a limiting through hole is opened on the clamping plate (13). The limiting rod (21) is inserted into the limiting through hole.

7. The aluminum bending device for sunroof guide rails of various car models according to claim 1, characterized in that, The end of the extrusion block (6) near the stop post (8) is chamfered.

8. The aluminum bending device for sunroof guide rails of various car models according to claim 1, characterized in that, A protective wall (22) is fixedly connected to the end of the base plate (1) away from the second motor (14).

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