Automobile rear bumper beam transport mechanism

Abstract

The utility model discloses a kind of automobile rear bumper cross beam transport mechanism, including mobile base, the top of mobile base is equipped with rotary seat, the inside of rotary seat is equipped with first clutch motor, the output end of first clutch motor is connected with L-shaped machine base, the horizontal plane of L-shaped machine base is equipped with second clutch motor, the output end of second clutch motor is connected with swing arm by passing the vertical plane of L-shaped machine base, the side of the top of swing arm is equipped with third clutch motor, the output end of third clutch motor is connected with telescopic arm by passing swing arm, the end of telescopic arm is connected with clamp, and the present scheme can adapt to the carrying demand of different stations.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts transportation technology, specifically relating to a transportation mechanism for a rear bumper beam of an automobile. Background Technology

[0002] The rear bumper crossbeam is a crucial component of a vehicle's structural system. It acts as a buffer and absorbs energy during collisions, playing a vital role in ensuring driving safety. During the manufacturing and assembly of the crossbeam, multiple transfer processes typically occur within the workshop; therefore, the performance of the transport mechanism directly impacts production efficiency and assembly quality.

[0003] Currently, the handling of rear bumper crossbeams in automobiles mainly relies on manual labor, forklifts, or simple lifting tools. For example, a front and rear bumper placement and transfer fixture disclosed in application number 201621090437X includes two symmetrically distributed horizontal plates and two symmetrically distributed vertical plates, with the horizontal and vertical plates connected by welding at their intersections. A crossbeam is welded between the two vertical plates, and a vertical column is vertically positioned between the front and rear horizontal plates. The top of the column is welded to the vertical beam, and a reinforcing column is provided between the vertical beam and the horizontal beam. An upwardly inclined base plate is provided near the horizontal plate of the column, and a connecting plate is welded between the base plate and the horizontal plate. Several load-bearing plates are also provided above the column.

[0004] The above solution involves using forklifts for further transfer and placement. However, forklift operation is not flexible enough and inefficient when workshop space is limited. Therefore, there is a need to provide a car rear bumper crossbeam transport mechanism with a reasonable structure, reliable clamping, and flexible movement to solve the above-mentioned problems in the existing technology. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a vehicle rear bumper crossbeam transport mechanism, comprising a movable base, a rotating seat above the movable base, a first brake motor inside the rotating seat, an L-shaped base connected to the output end of the first brake motor, a second brake motor on the horizontal surface of the L-shaped base, a swing arm connected to the output end of the second brake motor passing through the vertical surface of the L-shaped base, a third brake motor on one side above the swing arm, a telescopic arm connected to the output end of the third brake motor passing through the swing arm, and a clamp connected to the end of the telescopic arm.

[0006] Preferably, the clamp includes a connecting column, the upper part of which is connected to the end of the telescopic arm, a connecting plate is provided below the connecting column, a transverse support beam is connected to the bottom of the connecting plate, longitudinal support beams are symmetrically provided on both sides of the transverse support beams, and double-rod cylinders are symmetrically connected to the bottom of both ends of the longitudinal support beams, with zigzag clamps connected to the output ends on both sides of the double-rod cylinders.

[0007] Preferably, the end of the telescopic arm is provided with a groove, and a fourth brake motor is provided on the side of the groove. The output end of the fourth brake motor passes through the groove and is connected to the connecting column. The fourth brake motor drives the connecting column to rotate.

[0008] Preferably, the bottom outer side of the zigzag clamp is provided with a friction plate, and the friction plate is provided with a number of rubber protrusions.

[0009] Preferably, a track platform is provided below the movable base, and the movable base is slidably connected to the track platform. A first base and a second base are respectively provided on both sides of the track platform. A drive motor is provided on the first base, and a threaded rod is connected to the output end of the drive motor. The other end of the threaded rod is rotatably connected to the second base, and the movable base is threadedly connected to the threaded rod.

[0010] The advantages of this utility model are: 1. This solution achieves the rotation, pitch, extension and retraction of the crossbeam in space and attitude adjustment through the multi-degree-of-freedom coordination of the rotating seat, swing arm, telescopic arm and fourth brake motor, which can adapt to the handling needs of different workstations.

[0011] 2. This design employs a zigzag clamping structure driven by a dual-rod cylinder, combined with friction plates and rubber protrusions, to clamp the crossbeam at multiple points, ensuring even force distribution and preventing wobbling or slippage, thus guaranteeing safety during transportation. 3. The fixtures in this solution are compatible with rear bumper crossbeams of different specifications and models, reducing the frequency of fixture replacement. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present utility model.

[0013] Figure 2 This is a structural diagram of the clamping state of this utility model.

[0014] Figure 3 This is a diagram of the retractable structure of the clamp of this utility model.

[0015] Figure 4 This is a diagram showing the extended structure of the clamp of this utility model.

[0016] In the diagram: 1. Moving base, 2. Rotating seat, 3. First brake motor, 4. L-shaped base, 5. Second brake motor, 6. Swing arm, 7. Third brake motor, 8. Telescopic arm, 9. Connecting column, 10. Connecting plate, 11. Horizontal support beam, 12. Longitudinal support beam, 13. Double-outlet cylinder, 14. Zigzag clamp, 15. Groove, 16. Fourth brake motor, 17. Friction plate, 18. Rubber protrusion, 19. Track platform, 20. First base, 21. Second base, 22. Drive motor, 23. Threaded rod, 24. Rear bumper crossbeam. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Simultaneously, when an component is referred to as "fixed to" or "equipped on" another component, it can be directly on the other component or may have an intervening component present. When an component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present. When an component is referred to as "fixedly connected to" another component, it can be a common fixed connection method such as welding, bolting, or gluing. In short, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example 1, as Figure 1-2 As shown, a car rear bumper crossbeam transport mechanism includes a movable base 1, which is slidably connected to a track platform 19 below. The track platform 19 is fixed on the workshop floor or within the production line workstation area to provide a stable running trajectory for the transport mechanism. A first base 20 and a second base 21 are respectively installed on both sides of the track platform 19. A drive motor 22 is mounted on the first base 20, and the output end of the drive motor 22 is connected to a threaded rod 23 via a coupling. The other end of the threaded rod 23 is rotatably connected to the second base 21, forming a stable transmission support structure. The movable base 1 achieves precise movement along the track platform 19 through threaded engagement with the threaded rod 23. When the drive motor 22 rotates forward or reverse, the threaded rod 23 drives the movable base 1 to move linearly, thereby realizing the overall movement of the transport mechanism along the production line workstation. This movement method enables automated control and high positioning accuracy.

[0021] A rotating base 2 is positioned above the movable base 1. The rotating base 2 can rotate 360 ​​degrees relative to the base and houses a first brake motor 3. This brake motor is a type of motor that incorporates electromagnetic braking functionality into a standard motor. Its main structure includes the motor body and the connected electromagnetic brake. The working principle is as follows: when the motor is powered on, the electromagnetic brake releases, allowing the motor to rotate normally; when the motor is powered off or stops, the electromagnetic brake immediately activates, using friction plates to lock the motor shaft, achieving rapid braking and position holding. Since this is a well-known technology in the field, the specific structure will not be described in detail in this embodiment. The arrangement of the rotating base 2 allows the transport mechanism to flexibly adjust its direction within the narrow space of the workshop, facilitating the transfer of the rear bumper beam 24 between different workstations.

[0022] The output end of the first brake motor 3 is connected to an L-shaped base 4. The base has an L-shaped structure, and a second brake motor 5 is installed on its horizontal surface. The output end of the second brake motor 5 passes through the vertical surface of the base and is connected to the swing arm 6. The swing arm 6 can perform pitching motion in the vertical plane, thereby adjusting the height and angle of the telescopic arm 8 to achieve transport docking between workstations at different heights. Because a brake motor is used as the drive source, the motor has a brake function after positioning, which can firmly lock the angle of the swing arm 6 and prevent the crossbeam from swaying due to inertia or gravity.

[0023] A third brake motor 7 is located above one side of the swing arm 6. The output end of the third brake motor 7 passes through the swing arm 6 and connects to the telescopic arm 8. The third brake motor 7 rotates the telescopic arm 8, which is a telescopic structure. Driven by an internal telescopic motor, it can extend and retract forward and backward, thereby adjusting the distance between the clamp and the rear bumper crossbeam 24 to meet the needs of picking up and placing the crossbeam at different work positions. A groove 15 is provided at the front end of the telescopic arm 8. A fourth brake motor 16 is installed on the side wall of the groove 15. The output end of the fourth brake motor 16 passes through the groove 15 and connects to the connecting column 9. Driven by this motor, the connecting column 9 can rotate around the front end of the telescopic arm 8, allowing the clamp to be adjusted at the required angle during transportation, thereby ensuring that the rear bumper crossbeam 24 is placed in the designated position with the correct posture.

[0024] Combination Figure 3 and Figure 4The end of the telescopic arm 8 is connected to the clamp via a connecting column 9. The clamp consists of a frame structure formed by the connecting column 9, connecting plate 10, transverse support beam 11, and longitudinal support beam 12. A double-acting cylinder 13 is installed at the lower end of the longitudinal support beam 12. Both output ends of the double-acting cylinder 13 are connected to zigzag clamping plates 14. Friction plates 17 are provided on the outer bottom of the clamping plates, and several rubber protrusions 18 are arranged on the surface of the friction plates 17. This clamping structure can provide multi-point contact during clamping, which can increase the friction force and also play a buffering role, effectively avoiding scratches on the surface of the rear bumper crossbeam 24. The double-acting cylinder 13 moves symmetrically during clamping and releasing, ensuring that the rear bumper crossbeam 24 is always subjected to balanced force during clamping, thereby improving clamping stability and safety.

[0025] In practical application, the workflow of this transport mechanism is as follows: First, the drive motor 22 starts, and the threaded rod 23 drives the moving base 1 to move along the track platform 19, moving the mechanism to the target workstation. After reaching the workstation, the first brake motor 3 controls the rotating seat 2 to rotate, thereby adjusting the orientation of the transport mechanism so that the telescopic arm 8 can accurately align with the rear bumper beam 24 to be transported. Subsequently, the second brake motor 5 drives the swing arm 6 on the L-shaped base 4 to rotate, adjusting the height and angle of the telescopic arm 8 so that the clamp is in a suitable clamping position. The telescopic arm 8 extends forward, bringing the clamp closer to the rear bumper beam 24. When the clamp reaches the appropriate position, the fourth brake motor 16 drives the connecting column 9 to rotate, so that the clamping plate of the clamp matches the shape of the bumper beam 24. Finally, the double-outlet cylinder 13 actuates, driving the zigzag clamping plate 14 to clamp the bumper beam 24 from both sides inside. The rubber protrusions 18 on the friction plate 17 further improve the clamping stability and prevent the bumper beam 24 from slipping or shaking during transport.

[0026] After clamping, the mechanism can transport the crossbeam to the target workstation via a reverse control process. For example, the third brake motor 7 controls the telescopic arm 8 to retract, bringing the bumper crossbeam 24 away from its original position; the second brake motor 5 controls the swing arm 6 to adjust its angle, keeping the bumper crossbeam 24 at a suitable height; the first brake motor 3 controls the rotating seat 2 to rotate, adjusting the transport direction; and the drive motor 22 moves the movable base 1 along the track 19 to the target position. At the target workstation, the double-acting cylinder 13 releases the clamping plate, and the fixture releases the bumper crossbeam 24, completing one transport cycle. The entire process is highly automated, with smooth movements, and can match the production line cycle time, significantly improving the handling efficiency of the bumper crossbeam 24.

[0027] The transport mechanism in this embodiment features a multi-degree-of-freedom motion design, enabling the crossbeam to move flexibly in confined workshop environments. It can perform rotation, pitch, and extension movements, adapting to various complex workstation requirements. Simultaneously, the clamp uses a zigzag clamping plate 14 driven by a double-rod cylinder 13, in conjunction with a friction plate 17 and rubber protrusions 18, ensuring uniform and reliable clamping force and preventing the crossbeam from swaying or falling off during transport. The clamp in this solution has excellent adaptability, compatible with different models and specifications of automotive rear bumper crossbeams, eliminating the need for frequent replacement or adjustment of the clamping device and improving the flexibility of the production line.

[0028] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle bumper beam transport mechanism, characterized by: The device includes a movable base (1), a rotating base (2) above the movable base (1), a first brake motor (3) inside the rotating base (2), an L-shaped base (4) connected to the output end of the first brake motor (3), a second brake motor (5) on the horizontal surface of the L-shaped base (4), a swing arm (6) connected to the output end of the second brake motor (5) through the vertical surface of the L-shaped base (4), a third brake motor (7) on one side above the swing arm (6), a telescopic arm (8) connected to the output end of the third brake motor (7) through the swing arm (6), and a clamp connected to the end of the telescopic arm (8).

2. The automotive rear bumper beam transport mechanism of claim 1, wherein: The clamp includes a connecting column (9), the upper part of which is connected to the end of the telescopic arm (8), a connecting plate (10) is provided below the connecting column (9), a transverse support beam (11) is connected to the bottom of the connecting plate (10), a longitudinal support beam (12) is symmetrically provided on both sides of the transverse support beam (11), a double rod cylinder (13) is symmetrically connected to the bottom of both ends of the longitudinal support beam (12), and a zigzag clamp (14) is connected to the output ends on both sides of the double rod cylinder (13).

3. The automotive rear bumper beam transport mechanism of claim 2, wherein: The telescopic arm (8) has a groove (15) at its end, and a fourth brake motor (16) is provided on the side of the groove (15). The output end of the fourth brake motor (16) passes through the groove (15) and is connected to the connecting column (9). The fourth brake motor (16) drives the connecting column (9) to rotate.

4. The automotive rear bumper beam transport mechanism of claim 3, wherein: The zigzag clamp (14) has a friction plate (17) on its bottom outer side, and the friction plate (17) has several rubber protrusions (18).

5. The automotive rear bumper beam transport mechanism of claim 4, wherein: The movable base (1) is provided with a track platform (19) below it. The movable base (1) is slidably connected to the track platform (19). The track platform (19) is provided with a first base (20) and a second base (21) on both sides respectively. The first base (20) is provided with a drive motor (22). The output end of the drive motor (22) is connected to a threaded rod (23). The other end of the threaded rod (23) is rotatably connected to the second base (21). The movable base (1) is threadedly connected to the threaded rod (23).

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