A laser marking device for wheel hub bearings

Abstract

This application relates to the field of wheel hub bearing marking technology, and in particular to a wheel hub bearing laser marking device. The device includes a worktable with a mounting plate and a support frame fixedly mounted thereon. The support plate is positioned in front of the mounting plate, and the mounting plate has a placement plate with an elongated hole in its center. A moving assembly is positioned between the mounting plate and the placement plate, comprising a drive cylinder, a connecting plate, and a first arc-shaped plate. The first arc-shaped plate is fixedly connected to the connecting plate and slidably connected to the placement plate through the elongated hole. The connecting plate is fixedly connected to the output end of the drive cylinder, which is fixedly mounted on the upper surface of the mounting plate. A limiting structure is provided in front of the first arc-shaped plate, located on the upper surface of the placement plate. A laser marking head is positioned above the placement plate and fixedly connected to the support plate. This device avoids operators directly handling wheel hub bearings in the laser marking area, reducing the health risks posed by laser radiation to operators.

Description

Technical Field

[0001] This application relates to the field of wheel hub bearing marking technology, and in particular to a wheel hub bearing laser marking device. Background Technology

[0002] Wheel bearings are a key component of automobiles, primarily responsible for bearing weight and providing precise guidance for wheel rotation. They can withstand both axial and radial loads. To achieve product quality traceability, brand identification, and compliance with industry regulations, permanent markings are typically required on the outer surface of wheel bearings. Laser marking, which uses a high-energy-density laser to locally irradiate the workpiece, causing the surface material to vaporize or undergo a color-changing chemical reaction, thus leaving a permanent mark, has become the preferred method for marking wheel bearings.

[0003] Currently, laser marking of wheel bearings typically involves frequent manual loading and unloading of the wheel hubs. During this process, the operator's hands repeatedly enter the laser irradiation area. Although the high-energy-density laser beam generated by the laser marking head acts on the workpiece, there is a risk of the laser beam reaching the operator's hands due to misoperation, equipment malfunction, or unexpected reflections in the optical path. Lasers have thermal and photochemical effects on biological tissues; even short-term contact can cause severe skin burns and irreversible damage to the hands, increasing the health risks for operators. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a laser marking device for wheel hub bearings. The technical problem it solves is that in existing laser marking devices for wheel hub bearings, the operator's hands are frequently exposed to the laser irradiation area during the loading and unloading process, posing a safety hazard of irreversible damage to the operator's hands due to accidental laser irradiation. To solve the above-mentioned technical problem, the technical solution adopted by this utility model is: A laser marking device for wheel hub bearings, comprising: A workbench, wherein a mounting plate and a support frame are fixedly mounted on the upper surface of the workbench, and the support frame is located on the front side of the mounting plate; A placement plate is fixedly connected to the upper end face of a mounting plate, and an elongated hole is provided in the middle of the placement plate; A moving component, comprising a driving cylinder, a connecting plate, and a first arc-shaped plate, wherein the lower end face of the first arc-shaped plate is fixedly connected to the upper end face of the connecting plate, the first arc-shaped plate is slidably connected to the placement plate through an elongated hole, the side end face of the connecting plate is fixedly connected to the output end of the driving cylinder, and the driving cylinder is fixedly mounted on the upper end face of the mounting plate. A limiting structure is provided on the upper surface of the placement plate, and the limiting structure is located on the front side of the first arc-shaped plate. A laser marking head is fixedly connected to a support frame and is positioned above a placement plate.

[0005] Furthermore, a support plate is fixedly provided on the inner end face of the first arc-shaped plate, and a guide groove is provided on the lower end face of the placement plate. The guide groove is provided on both sides of the elongated hole, and the support plate is slidably connected to the guide groove.

[0006] Furthermore, a first rubber pad is fixedly provided on the outer end face of the first arc-shaped plate.

[0007] Furthermore, the limiting structure includes a second arc-shaped plate, a movable plate, and a locking plate. The lower end face of the locking plate is fixedly connected to the upper end face of the movable plate, and the movable plate is fixedly connected to the outer end face of the second arc-shaped plate. The centers of the second arc-shaped plate and the first arc-shaped plate are always on the same axis.

[0008] Furthermore, the movable plate has a U-shaped hole, and the locking plate has several threaded holes. Each of the several threaded holes is provided with a locking bolt in a threaded engagement manner. The locking bolt is connected to the placement plate, and one of the locking bolts passes through the U-shaped hole.

[0009] Furthermore, a second rubber pad is fixedly provided on the inner end face of the second arc-shaped plate.

[0010] Furthermore, a mobile PC is also provided on the upper surface of the workbench, and the mobile PC is connected to the laser marking head via signal.

[0011] The beneficial effects of this utility model are as follows: By setting a moving component, the arc-shaped plate will drive the hub bearing placed on the upper surface of the placement plate under the drive cylinder, and move it until the outer end face of the hub bearing contacts and is positioned with the second arc-shaped plate, so that the hub bearing is accurately placed directly below the laser marking head. After marking is completed, the drive cylinder will drive the first arc-shaped plate to drive the hub bearing back to the initial position; effectively avoiding the operator from directly picking up and placing the hub bearing in the laser marking area, reducing the probability of laser radiation causing damage to the operator's hands, and reducing the health risks to the staff; By setting a limiting structure, the second arc-shaped plate radially limits the wheel hub bearing. The moving plate can drive the second arc-shaped plate to move to a suitable position on the placement plate. The locking bolt and locking plate cooperate to achieve rigid fixation. This structure ensures that the wheel hub bearing is always coaxial with the laser marking head and is suitable for wheel hub bearings of different models and inner diameters. It ensures the accuracy of the laser marking head marking on the surface of the wheel hub bearing and enhances the practicality of the device. Attached Figure Description

[0012] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention.

[0013] Figure 2This is a two-dimensional structural diagram of the present invention from a second perspective.

[0014] Figure 3 This is the right view of this utility model.

[0015] Figure 4 This is a schematic diagram of the third-view three-dimensional structure of this utility model.

[0016] In the picture: 1. Workbench; 2. Mounting plate; 3. Support frame; 4. Placement plate; 5. Elongated hole; 6. Moving assembly; 61. Drive cylinder; 62. Connecting plate; 63. First arc plate; 7. Limiting structure; 71. Second arc plate; 72. Moving plate; 73. Locking plate; 8. Laser marking head; 9. Support plate; 10. Guide groove; 11. First rubber pad; 12. U-shaped hole; 13. Threaded hole; 14. Locking bolt; 15. Second rubber pad; 16. Moving PC. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows: like Figure 1-3 As shown, a laser marking device for wheel hub bearings includes a worktable 1. A mounting plate 2 and a support frame 3 are fixedly mounted on the upper surface of the worktable 1. The support frame 3 is positioned in front of the mounting plate 2. A placement plate 4 is fixedly mounted on the upper surface of the mounting plate 2. An elongated hole 5 is formed in the middle of the placement plate 4. A moving assembly 6 is disposed between the mounting plate 2 and the placement plate 4. The moving assembly 6 includes a drive cylinder 61, a connecting plate 62, and a first arc-shaped plate 63. The lower surface of the first arc-shaped plate 63 is fixedly connected to the upper surface of the connecting plate 62. The first arc-shaped plate 63 passes through the elongated hole 5 and is slidably connected to the placement plate 4. The side surface of the connecting plate 62 is fixedly connected to the output end of the drive cylinder 61. The drive cylinder 61 is fixedly mounted on the upper surface of the mounting plate 2. A limiting structure 7 is provided on the front side of an arc-shaped plate 63. The limiting structure 7 is located on the upper end face of the placement plate 4. A laser marking head 8 is provided above the placement plate 4 and is fixedly connected to the support frame 3. By setting a moving component 6, the arc-shaped plate will drive the wheel hub bearing placed on the upper end face of the placement plate 4 under the drive cylinder 61, and move it until the outer end face of the wheel hub bearing contacts and is positioned with the second arc-shaped plate 71, so that the wheel hub bearing is accurately placed directly below the laser marking head 8. After marking is completed, the drive cylinder 61 will drive the first arc-shaped plate 63 to drive the wheel hub bearing back to the initial position. This effectively avoids the operator from directly picking up and placing the wheel hub bearing in the laser marking area, reduces the probability of laser radiation causing damage to the operator's hands, and reduces the health risks to the staff.

[0018] like Figure 4 As shown, it should be noted that a support plate 9 is fixedly provided on the inner end face of the first arc-shaped plate 63, and a guide groove 10 is provided on the lower end face of the placement plate 4. The guide groove 10 is provided on both sides of the elongated hole 5, and the support plate 9 is slidably connected to the guide groove 10. The provision of the support plate 9 increases the stability of the first arc-shaped plate 63, and the provision of the guide groove 10 provides further guidance for the movement of the first arc-shaped plate 63.

[0019] like Figure 1 As shown, a first rubber pad 11 is fixedly provided on the outer end face of the first arc plate 63; the main purpose of this structure is to prevent the rigid contact surface from causing frictional damage to the inner diameter surface of the wheel hub bearing, especially during the process of the wheel hub bearing moving under the laser marking head 8.

[0020] like Figure 3 As shown, it should be noted that the limiting structure 7 includes a second arc-shaped plate 71, a movable plate 72, and a locking plate 73. The lower end face of the locking plate 73 is fixedly connected to the upper end face of the movable plate 72. The movable plate 72 is fixedly connected to the outer end face of the second arc-shaped plate 71. The centers of the second arc-shaped plate 71 and the first arc-shaped plate 63 are always on the same axis. The movable plate 72 has a U-shaped hole 12, and the locking plate 73 has several threaded holes 13. Each of the several threaded holes 13 is provided with a locking bolt 14 in a threaded engagement manner. Bolt 14 abuts against and connects to the placement plate 4, with one locking bolt 14 passing through the U-shaped hole 12; the second arc plate 71 radially limits the wheel hub bearing, and the moving plate 72 can drive the second arc plate 71 to move to a suitable position on the placement plate 4. The locking bolt 14 and the locking plate 73 cooperate to achieve rigid fixation. This structure ensures that the wheel hub bearing is always coaxial with the laser marking head 8, and is suitable for wheel hub bearings of different models and inner diameters, ensuring the accuracy of the laser marking head 8 marking on the surface of the wheel hub bearing and enhancing the practicality of the device.

[0021] In use, loosen the locking bolt 14, and move the moving plate 72 linearly towards or away from the first arc plate 63 according to the diameter of the wheel hub bearing. The locking plate 73 and the second arc plate 71 will move together with the moving plate 72 until the outer circumferential surface of the wheel hub bearing contacts the second arc plate 71. At this point, the wheel hub bearing and the laser marking head 8 are coaxial. Then, tighten the locking bolt 14 until the bottom surface of the locking bolt 14 is tightly pressed against the upper end surface of the placement plate 4, thus completing the fixation of the second arc plate 71 and the moving plate 72.

[0022] like Figure 2 As shown, a second rubber pad 15 is further fixedly provided on the inner end face of the second arc-shaped plate 71; this structure is designed to prevent the rigid contact surface from causing frictional damage to the outer circumferential surface of the wheel hub bearing.

[0023] It should be noted that a movable PC16 is also provided on the upper surface of the worktable 1, and the movable PC16 is connected to the laser marking head 8 via a signal; the main purpose of this structure is to control the operation of the laser marking head 8.

[0024] The working principle and process of this utility model are as follows: The wheel hub bearing to be marked is placed on the upper surface of the placement plate 4 by passing it over the first arc-shaped plate 63. The drive cylinder 61 is then activated, extending and moving the drive connecting plate 62. The movement of the connecting plate 62 will cause the first arc-shaped plate 63 to move along the elongated hole 5 towards the laser marking head 8. The movement of the first arc-shaped plate 63 will cause the wheel hub bearing to move along with it until the outer circumferential surface of the wheel hub bearing contacts the inner end face of the second arc-shaped plate 71. At this point, the wheel hub bearing is directly below the laser marking head 8, and the wheel hub bearing and the laser marking head 8 are coaxial. After the mobile PC16 detects that the wheel hub bearing is located at the designated position below the laser marking head 8, it controls the laser marking head 8 to perform laser marking on the wheel hub bearing. After the marking is completed, the drive cylinder 61 retracts, causing the connecting plate 62 to move back. The movement of the connecting plate 62 will cause the first arc plate 63 to move along the long hole 5 towards the laser marking head 8. The movement of the first arc plate 63 will cause the wheel hub bearing to move along with it until the wheel hub bearing moves to the initial position. At this time, the first arc plate 63 is located at the end of the long hole 5, and then the marked wheel hub bearing is removed.

[0025] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A laser marking device for wheel hub bearings, characterized in that, include: A workbench (1) is provided with a mounting plate (2) and a support frame (3) fixedly mounted on its upper surface. The support frame (3) is located on the front side of the mounting plate (2). Placement plate (4), which is fixedly connected to the upper end face of mounting plate (2), and an elongated hole (5) is provided in the middle of the placement plate (4); The moving component (6) includes a driving cylinder (61), a connecting plate (62) and a first arc plate (63). The lower end face of the first arc plate (63) is fixedly connected to the upper end face of the connecting plate (62). The first arc plate (63) passes through the elongated hole (5) and is slidably connected to the placement plate (4). The side end face of the connecting plate (62) is fixedly connected to the output end of the driving cylinder (61). The driving cylinder (61) is fixedly mounted on the upper end face of the mounting plate (2). A limiting structure (7) is provided on the upper end face of the placement plate (4) and the limiting structure (7) is located on the front side of the first arc plate (63); Laser marking head (8), which is fixedly connected to the support frame (3) and is positioned above the placement plate (4).

2. The wheel hub bearing laser marking device according to claim 1, characterized in that: A support plate (9) is fixedly provided on the inner end face of the first arc plate (63), and a guide groove (10) is provided on the lower end face of the placement plate (4). The guide groove (10) is provided on both sides of the elongated hole (5), and the support plate (9) is slidably connected to the guide groove (10).

3. The wheel hub bearing laser marking device according to claim 1, characterized in that: A first rubber pad (11) is fixedly provided on the outer end face of the first arc plate (63).

4. The wheel hub bearing laser marking device according to claim 1, characterized in that: The limiting structure (7) includes a second arc plate (71), a moving plate (72) and a locking plate (73). The lower end face of the locking plate (73) is fixedly connected to the upper end face of the moving plate (72). The moving plate (72) is fixedly connected to the outer end face of the second arc plate (71). The centers of the second arc plate (71) and the first arc plate (63) are always on the same axis.

5. The wheel hub bearing laser marking device according to claim 4, characterized in that: The movable plate (72) has a U-shaped hole (12), and the locking plate (73) has a plurality of threaded holes (13). Each of the plurality of threaded holes (13) is provided with a locking bolt (14) in a threaded engagement manner. The locking bolt (14) is abutted and connected to the placement plate (4), and one of the locking bolts (14) passes through the U-shaped hole (12).

6. The wheel hub bearing laser marking device according to claim 4, characterized in that: A second rubber pad (15) is fixedly provided on the inner end face of the second arc-shaped plate (71).

7. The wheel hub bearing laser marking device according to claim 1, characterized in that: The upper surface of the workbench (1) is also provided with a mobile PC (16), which is connected to the laser marking head (8) via signal.

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