Automatic carving machine for automobile hub

Abstract

The utility model discloses an automatic carving machine for an automobile hub, and belongs to the technical field of vehicle part machining, the automatic carving machine comprises a workbench, an upper clamping assembly is arranged on the outer surface of a clamping rod, the upper clamping assembly is connected through a connecting assembly, a limiting assembly is arranged on the outer surface of a supporting frame, and protection boxes are fixedly mounted on the front side and the rear side of the workbench; moving assemblies are arranged in the protection boxes, lower clamping assemblies are arranged on the outer surfaces of the sides, approaching each other, of the two moving assemblies, the lower clamping assemblies are connected through clamping assemblies, a second pushing air cylinder downwards pushes a column body, and two upper stabilizing plates can clamp the upper portion of an automobile hub body after two clamping rods are oppositely unfolded under the action of a connecting rod; and a lower stabilizing plate is installed on the movable plate to stably clamp the lower portion of the automobile hub, and stable clamping of the automobile hub body can be achieved by clamping the upper portion and the lower portion of the automobile hub body, so that the automobile hub body does not deviate in the carving process, and the carving quality of the automobile hub body is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts processing technology, and more specifically, to an automatic engraving machine for automobile wheel hubs. Background Technology

[0002] A car wheel rim is a cylindrical metal component inside a car tire, centered on an axle, used to support the tire. Simply put, it's the part in the center of the wheel where the axle is mounted. It's an important component connecting the brake drum (brake disc), wheel disc, and half-shaft. During the manufacturing process, car wheel rims need to be engraved. The main purpose of engraving is to improve the readability and recognizability of the wheel rim, increase its brand recognition, and also help prevent counterfeiting, giving consumers more confidence when purchasing.

[0003] The prior art, disclosed in CN116001479A, describes a semi-automatic wheel hub engraving machine, belonging to the field of engraving machine technology. It includes a base plate, an automatic clamping assembly installed inside the base plate, side plates installed on the sides of the base plate, a top plate installed on the upper side of the side plates, and an engraver displacement adjustment assembly installed inside the top plate. An electric telescopic rod is installed at the lower end of the engraver displacement adjustment assembly. This invention, by incorporating the automatic clamping assembly, facilitates the clamping and fixing of the wheel hub, enabling the engraver to mark the wheel hub. Simultaneously, this assembly prevents the wheel hub from shifting during engraving, thus avoiding any impact on the engraving effect. The assembly utilizes opposite external threads on the surfaces of screws one and two, causing screws one and two to rotate, thereby moving four sets of clamping plates closer together or further apart, achieving automatic clamping and fixing of the wheel hub.

[0004] Although the device has many beneficial effects, it still has the following problems: Although the semi-automatic car wheel rim engraving machine can automatically clamp and fix the wheel rim, the clamping force is insufficient during the engraving process, which easily leads to engraving deviation and thus affects the engraving quality. In addition, it cannot be adapted to various car wheel rim models, which reduces its adaptability. Summary of the Invention

[0005] (1) Technical problems solved

[0006] To address the shortcomings of existing technologies, this invention provides an automatic engraving machine for automobile wheel hubs, which solves the aforementioned problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: an automatic car wheel hub engraving machine, comprising a worktable, two support plates fixedly connected to the top of the worktable, the two support plates being symmetrically distributed, a conveying component being provided on the outer surface of the side where the two support plates meet, a plurality of equidistantly distributed car wheel hub bodies being provided above the conveying component, a movable plate being provided on the outer side of each of the two support plates, a plurality of equidistantly distributed support frames being fixedly connected to the top of the worktable, a connecting plate being fixedly connected to the outer surface of each of the support frames, two clamping rods being provided below the support frames, the two clamping rods being symmetrically distributed, an upper clamping component being provided on the outer surface of the clamping rods, the upper clamping component being connected by a connecting component, a limiting component being provided on the outer surface of the support frame, protective boxes being fixedly installed on both the front and rear sides of the worktable, a movable component being provided inside each of the protective boxes, the movable component being fixedly connected to a corresponding movable plate, a lower clamping component being provided on the outer surface of the side where the two movable components meet, the lower clamping component being connected by a snap-fit ​​component.

[0009] Preferably, the upper clamping assembly includes a second push cylinder, an upper stabilizing plate, connecting rods, and a column. The second push cylinder is fixedly installed on the top of the support frame. The output end of the second push cylinder passes through the support frame and is fixedly connected to the column. Two connecting rods are rotatably connected to the outer surface of the column. The two connecting rods are arranged vertically. The other end of the two connecting rods is rotatably connected to the corresponding clamping rod. The bottom of each of the two clamping rods is movably connected to an upper stabilizing plate. The upper stabilizing plate has an arc-shaped structure. The two upper stabilizing plates are movably engaged with the outer surface of the automobile wheel hub body.

[0010] Preferably, the limiting component includes a first limiting block and a limiting post. The first limiting block is fixedly connected to the outer surface of the connecting plate. The top of the first limiting block has a movable hole, which is movably connected to the post. The bottom of the post is fixedly connected to the limiting post, which is located below the first limiting block.

[0011] Preferably, four connecting frames are fixedly connected to the bottom of both sides of the first limiting block. The four connecting frames are symmetrically distributed. Rollers are rotatably connected to the outer surfaces of the two corresponding connecting frames. The limiting post is located between the two rollers. First telescopic springs are fixedly connected to the outer surfaces of the two adjacent connecting frames. The limiting post is movably connected to the two first telescopic springs.

[0012] Preferably, the connecting assembly includes a through hole, a telescopic column, a connecting column, a ball, and a second telescopic spring. The top of the upper stabilizing plate is fixedly connected to the connecting column, and two telescopic columns are fixedly connected to the outer surfaces of both sides of the connecting column. The interior of each of the two telescopic columns is fixedly connected to a second telescopic spring, and the top of each of the two telescopic columns is fixedly connected to a ball. The bottom of the clamping rod has an installation hole, and the outer surfaces of both sides of the clamping rod have through holes. The installation hole is movably connected to the connecting column, and the ball is movably engaged with the corresponding through hole.

[0013] Preferably, the conveying assembly includes conveying rollers and a drive motor. The drive motor is fixedly installed on the outer surface of the support plate. Multiple equidistant conveying rollers are rotatably connected to the outer surfaces of the two support plates on their adjacent sides. The output end of the drive motor is fixedly connected to the conveying rollers. Multiple car wheel hub bodies are located on top of the conveying rollers.

[0014] Preferably, the moving component includes a gear, a rack, a rectangular slot, and a first slider. The top of the worktable is rotatably connected to the gear, and the outer surfaces of both sides of the gear are meshed with the rack. The top of the worktable has two rectangular slots, and two first sliders are slidably connected inside each of the two rectangular slots. The tops of the two first sliders are fixedly connected to the corresponding racks. The racks are slidably connected to the top of the worktable, and the two racks are fixedly connected to the outer surfaces of the corresponding moving plates.

[0015] Preferably, two first push cylinders are fixedly installed on the outer surface of the movable plate, and the output ends of the two first push cylinders are fixedly connected to the outer surface of the movable plate. A guide rail is fixedly connected to the top of the worktable, and two second sliders are slidably connected to the top two sides of the guide rail. The two second sliders are fixedly connected to the corresponding interior of the movable plate.

[0016] Preferably, the lower clamping assembly includes a lower stabilizing plate, a clamping block, and a transition block. Multiple lower clamping assemblies are provided on the outer surface of one side of the two moving plates that are facing each other. Two transition blocks are fixedly connected to the outer surface of the moving plates. The outer surfaces of the two transition blocks are rotatably connected to the clamping blocks. The lower stabilizing plates are clamped in the two clamping blocks. The lower stabilizing plates are arranged in an arc shape. The two corresponding lower stabilizing plates are movably clamped to the outer surface of the automobile wheel hub body.

[0017] Preferably, the snap-fit ​​assembly includes a fastening post, a second limiting block, a slot, a connecting hole, and threads. The top of the adapter block has a connecting hole, the internal thread of which is connected to the fastening post. The lower outer surface of the fastening post is fixedly connected to the threads, and the outer surface of the fastening post is fixedly connected to the second limiting block. The top of the clamping block has a slot, and the second limiting block is located above the slot.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides an automatic engraving machine for automobile wheel hubs, which has the following advantages:

[0020] 1. This automatic car wheel hub engraving machine, through the cooperation of an upper clamping assembly and a lower clamping assembly, uses a second push cylinder to push the column downward. Under the action of the connecting rod, the two clamping rods are relatively unfolded, and the two upper stabilizing plates can clamp the upper part of the car wheel hub body. The lower stabilizing plate installed on the moving plate clamps and stabilizes the lower part of the car wheel hub. By clamping the upper and lower parts of the car wheel hub body, the car wheel hub body can be stably clamped, so that the car wheel hub body does not deviate during the engraving process, thus improving the engraving quality of the car wheel hub body.

[0021] 2. This automatic car wheel hub engraving machine uses a connecting assembly. Pressing the ball on the through hole causes the telescopic column to extend into the mounting hole under the action of the second telescopic spring, causing the connecting column to disengage from the mounting hole. Then, a suitable upper stabilizing plate is re-clamped onto the clamping rod, which facilitates the installation and replacement of the upper mounting plate. This allows it to be suitable for more car wheel hubs, further improving the adaptability of the device.

[0022] 3. This automatic car wheel hub engraving machine uses a snap-fit ​​assembly. By rotating the fastening column, the second limiting block is aligned with the groove direction, and the clamping block is lifted, thus not clamping the lower stabilizing plate. After replacing the suitable lower stabilizing plate, rotating the fastening column, the clamping block is connected to the adapter block by the threads and connecting holes. The second limiting block can limit the movement. After the two clamping blocks snap the lower stabilizing plate, the replacement is completed. The easy replacement of the upper and lower stabilizing plates allows it to be suitable for more car wheel hubs, further improving the adaptability of the device.

[0023] 4. This automatic car wheel hub engraving machine, through the conveying component, after starting the drive motor, places multiple car wheel hub bodies on multiple conveying rollers, thereby realizing the conveying of car wheel hub bodies, thus saving manpower and improving labor efficiency.

[0024] 5. This automatic car wheel hub engraving machine uses a limiting component. During the up-and-down pushing process of the column, the bottom limiting column contacts the rollers on both sides. Two first telescopic springs can prevent the column from falling off, and the first limiting block can prevent the movement trajectory of the column from deviating, thereby improving the stable clamping effect of the upper stabilizing plate on the upper part of the car wheel hub body and improving the engraving quality of the car wheel hub body.

[0025] 6. This automatic car wheel hub engraving machine uses a moving component. After activating the first push cylinder, the moving plate moves towards the center of the worktable. The cooperation between the second slider and the guide rail ensures that the two moving plates do not shift during movement. Under the sliding cooperation of the rectangular groove and the first slider, the rack moves with the moving plate, thereby driving the gear to rotate. As a result, the rack on the other side drives the symmetrical moving plate to move towards the center of the worktable. The lower stabilizing plates on both sides move synchronously, further improving the stable clamping effect on the upper and lower parts of the car wheel hub body and improving the engraving quality of the car wheel hub body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the clamping component structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0029] Figure 4 This is a schematic diagram of the connection component structure of the present invention;

[0030] Figure 5 This is a cross-sectional view of the structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the moving component of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle;

[0033] Figure 8 This is a schematic diagram of the clamping component structure of the present invention;

[0034] Figure 9 This is a schematic diagram of the snap-fit ​​assembly structure of the present invention;

[0035] Figure 10 This is a cross-sectional view of the structure of the present invention.

[0036] In the diagram: 1. Workbench; 2. Support plate; 3. Conveyor roller; 4. Support frame; 5. First push cylinder; 6. Second push cylinder; 7. Car wheel hub body; 8. Protective box; 9. Clamping rod; 10. Upper stabilizing plate; 11. Connecting plate; 12. Connecting rod; 13. First limiting block; 14. Column; 15. Through hole; 16. Roller; 17. Limiting post; 18. First telescopic spring; 19. Connecting frame; 20. Telescopic post; 21. Connecting post; 22. Ball; 23. Second telescopic spring; 24. Gear; 25. Rack; 26. Guide rail; 27. Moving plate; 28. Lower stabilizing plate; 29. ​​Rectangular groove; 30. First slider; 31. Second slider; 32. Clamping block; 33. Fastening post; 34. Second limiting block; 35. Groove; 36. Adapter block; 37. Connecting hole; 38. Thread; 39. Drive motor. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-10 , the present invention provides a technical solution:

[0039] An automatic car wheel hub engraving machine includes a worktable 1. Two support plates 2 are fixedly connected to the top of the worktable 1, and the two support plates 2 are symmetrically distributed. A conveying assembly is provided on the outer surface of one side of the two support plates 2 that faces each other. Above the conveying assembly are multiple equidistantly distributed car wheel hub bodies 7. Movable plates 27 are provided on the outer sides of both support plates 2. Multiple equidistantly distributed support frames 4 are fixedly connected to the top of the worktable 1. Connecting plates 11 are fixedly connected to the outer surfaces of the multiple support frames 4. Two clamping rods 9 are provided below the support frames 4, and the two clamping rods 9 are symmetrically distributed. The outer surfaces of the clamping rods 9 are provided with upper... The clamping assembly consists of an upper clamping assembly connected by a connecting assembly, a limiting assembly on the outer surface of the support frame 4, and protective boxes 8 fixedly installed on both the front and rear sides of the worktable 1. Each protective box 8 contains a movable assembly, which is fixedly connected to a corresponding movable plate 27. A lower clamping assembly is provided on the outer surface of the side where the two movable assemblies meet. The lower clamping assembly is connected by a snap-fit ​​assembly. The cooperation of the upper and lower clamping assemblies allows for more stable clamping of the car wheel hub body 7. The cooperation of the connecting assembly and the snap-fit ​​assembly facilitates adaptation to different car wheel hub bodies 7. The protective box 8 protects the movable assembly.

[0040] Furthermore, the upper clamping assembly includes a second push cylinder 6, an upper stabilizing plate 10, a connecting rod 12, and a column 14. The second push cylinder 6 is fixedly installed on the top of the support frame 4. The output end of the second push cylinder 6 passes through the support frame 4 and is fixedly connected to the column 14. Two connecting rods 12 are rotatably connected to the outer surface of the column 14. The two connecting rods 12 are arranged vertically. The other end of the two connecting rods 12 is rotatably connected to the corresponding clamping rod 9. The bottom of the two clamping rods 9 is movably connected to the upper stabilizing plate 10. The upper stabilizing plate 10 is arranged in an arc shape. The two upper stabilizing plates 10 are movably engaged with the outer surface of the car wheel hub body 7. The second push cylinder 6 pushes the column 14 downward. Under the action of the connecting rod 12, the two clamping rods 9 are relatively unfolded, and the two upper stabilizing plates 10 can clamp the upper part of the car wheel hub.

[0041] Furthermore, the limiting component includes a first limiting block 13 and a limiting post 17. The first limiting block 13 is fixedly connected to the outer surface of the connecting plate 11. The top of the first limiting block 13 is provided with a movable hole, which is movably connected to the post 14. The bottom of the post 14 is fixedly connected to the limiting post 17, which is located below the first limiting block 13. The first limiting block 13 can prevent the movement trajectory of the post 14 from deviating.

[0042] Furthermore, four connecting frames 19 are fixedly connected to the bottom of both sides of the first limiting block 13. The four connecting frames 19 are symmetrically distributed. Rollers 16 are rotatably connected to the outer surface of the two corresponding connecting frames 19 on the same side. The limiting post 17 is located between the two rollers 16. The outer surface of the two adjacent connecting frames 19 is fixedly connected to the first telescopic springs 18. The limiting post 17 is movably connected to the two first telescopic springs 18. During the up-and-down pushing process of the column 14, the limiting post 17 at the bottom contacts the rollers 16 on both sides. The two first telescopic springs 18 can prevent the column 14 from falling off.

[0043] Furthermore, the connecting assembly includes a through hole 15, a telescopic column 20, a connecting column 21, a ball 22, and a second telescopic spring 23. The top of the upper stabilizing plate 10 is fixedly connected to the connecting column 21, and two telescopic columns 20 are fixedly connected to the outer surfaces of both sides of the connecting column 21. The inner surfaces of the two telescopic columns 20 are fixedly connected to the second telescopic spring 23, and the top of the two telescopic columns 20 are fixedly connected to the ball 22. The bottom of the clamping rod 9 has an installation hole, and the outer surfaces of both sides of the clamping rod 9 have through holes 15. The installation hole is movably connected to the connecting column 21, and the ball 22 is movably engaged with the corresponding through hole 15. When the ball 22 is pressed on the through hole 15, the telescopic column 20 extends into the installation hole under the action of the second telescopic spring 23, causing the connecting column 21 to disengage from the installation hole. Then, the suitable upper stabilizing plate 10 is re-engaged and installed on the clamping rod 9.

[0044] Furthermore, the conveying assembly includes conveying rollers 3 and drive motors 39. The drive motor 39 is fixedly installed on the outer surface of the support plate 2. Multiple equidistantly distributed conveying rollers 3 are rotatably connected to the outer surface of the two support plates 2 on their adjacent sides. The output end of the drive motor 39 is fixedly connected to the conveying rollers 3. Multiple car wheel hub bodies 7 are located on top of the conveying rollers 3. After placing multiple car wheel hub bodies 7 on multiple conveying rollers 3, the drive motor 39 can be started to drive the car wheel hubs to be conveyed.

[0045] Furthermore, the moving assembly includes a gear 24, a rack 25, a rectangular groove 29, and a first slider 30. The top of the worktable 1 is rotatably connected to the gear 24, and the outer surfaces of both sides of the gear 24 are meshed with the rack 25. The top of the worktable 1 has two rectangular grooves 29, and the interior of each of the two rectangular grooves 29 is slidably connected to two first sliders 30. The tops of the two first sliders 30 are fixedly connected to the corresponding racks 25. The racks 25 are slidably connected to the top of the worktable 1. The two racks 25 are fixedly connected to the outer surfaces of the corresponding moving plates 27. The cooperation between the second slider 31 and the guide rail 26 can prevent the two moving plates 27 from shifting during movement. Under the sliding cooperation of the rectangular grooves 29 and the first sliders 30, the rack 25 moves with the moving plates 27, thereby driving the gear 24 to rotate. As a result, the rack 25 on the other side drives the symmetrical moving plates 27 to move towards the center of the worktable 1, so that the lower stabilizing plate 28 is installed on the moving plate 27 to clamp and stabilize the area below the car wheel hub.

[0046] Furthermore, two first push cylinders 5 are fixedly installed on the outer surface of the movable plate 27. The output ends of the two first push cylinders 5 are fixedly connected to the outer surface of the movable plate 27. A guide rail 26 is fixedly connected to the top of the worktable 1. Two second sliders 31 are slidably connected to the top two sides of the guide rail 26. The two second sliders 31 are fixedly connected to the corresponding interior of the movable plate 27. After the first push cylinders 5 are activated, the movable plate 27 moves towards the center of the worktable 1.

[0047] Furthermore, the lower clamping assembly includes a lower stabilizing plate 28, a clamping block 32, and a transition block 36. Multiple lower clamping assemblies are provided on the outer surface of the two moving plates 27 facing each other. Two transition blocks 36 are fixedly connected to the outer surface of the moving plate 27. The clamping blocks 32 are rotatably connected to the outer surface of the two transition blocks 36. The lower stabilizing plate 28 is clamped in the two clamping blocks 32. The lower stabilizing plate 28 is arranged in an arc-shaped structure. The two corresponding lower stabilizing plates 28 are movably clamped to the outer surface of the car wheel hub body 7. The installation of the lower stabilizing plate 28 clamps and stabilizes the bottom of the car wheel hub.

[0048] Furthermore, the snap-fit ​​assembly includes a fastening post 33, a second limiting block 34, a slot 35, a connecting hole 37, and a thread 38. The top of the adapter block 36 has a connecting hole 37, and the fastening post 33 is threadedly connected to the inside of the connecting hole 37. The thread 38 is fixedly connected to the lower outer surface of the fastening post 33, and the second limiting block 34 is fixedly connected to the outer surface of the fastening post 33. The top of the clamping block 32 has a slot 35, and the second limiting block 34 is located above the slot 35. By rotating the fastening post 33 so that the direction of the second limiting block 34 is aligned with that of the slot 35, the clamping block 32 is lifted, thus not clamping the lower stabilizing plate 28. After replacing the suitable lower stabilizing plate 28, rotating the fastening post 33 causes the clamping block 32 to connect with the adapter block 36 under the action of the thread 38 and the connecting hole 37. The second limiting block 34 can be limited. After the two clamping blocks 32 snap the lower stabilizing plate 28, the replacement can be completed.

[0049] Working principle: When the operator needs to use the automatic car wheel hub engraving machine, firstly, multiple car wheel hub bodies 7 are placed on multiple conveyor rollers 3, and then the drive motor 39 is started to drive the car wheel hub bodies 7 to be conveyed. When it is necessary to engrave the car wheel hub body 7, the second push cylinder 6 is started. The second push cylinder 6 pushes the column 14 downward. Under the action of the connecting rod 12, the two clamping rods 9 are relatively unfolded, and the two upper stabilizing plates 10 can clamp the upper part of the car wheel hub body 7. During the up and down pushing process, the bottom limiting post 17 of the column 14 contacts the rollers 16 on both sides. The two first telescopic springs 18 can prevent the column 14 from falling off. The first limiting block 13 can prevent the movement trajectory of the column 14 from deviating. The protective box 8 can protect the moving components. After starting the first push cylinder 5, the moving plate 27 moves towards the center of the worktable 1. The cooperation of the second slider 31 and the guide rail 26 can keep the two moving plates 27 from deviating during the movement. Under the sliding cooperation of the rectangular groove 29 and the first slider 30, the rack 2 5. As the movable plate 27 moves, it drives the gear 24 to rotate, causing the rack 25 on the other side to move the symmetrical movable plate 27 towards the center of the worktable 1. This allows the lower stabilizing plate 28 mounted on the movable plate 27 to clamp and stabilize the underside of the car wheel hub. When different sizes of the car wheel hub body 7 are encountered and the upper and lower clamping components need to be replaced, pressing the ball 22 on the through hole 15, under the action of the second telescopic spring 23, causes the telescopic column 20 to extend into the mounting hole, causing the connecting column 21 to disengage from the mounting hole. After removing the upper stabilizing plate 10, re-attach it to the clamping rod 9. Rotate the fastening post 33 so that the second limiting block 34 is aligned with the slot 35. Then lift the clamping block 32 so that the lower stabilizing plate 28 is not clamped. After replacing the lower stabilizing plate 28, rotate the fastening post 33. Under the action of the thread 38 and the connecting hole 37, the clamping block 32 is connected to the adapter block 36. The second limiting block 34 can be limited. After the two clamping blocks 32 clamp the lower stabilizing plate 28, the replacement is completed.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic engraving machine for automobile wheel hubs, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to two support plates (2), which are symmetrically distributed. A conveying assembly is provided on the outer surface of the side of the two support plates (2) that are facing each other. Above the conveying assembly are multiple equidistantly distributed automobile wheel hub bodies (7). Movable plates (27) are provided on the outer sides of both support plates (2). The top of the workbench (1) is fixedly connected to multiple equidistantly distributed support frames (4), and a connecting plate (11) is fixedly connected to the outer surface of each of the multiple support frames (4). Below the support frames (4) is a... There are two clamping rods (9) arranged symmetrically. The outer surface of the clamping rods (9) is provided with an upper clamping component, which is connected by a connecting component. The outer surface of the support frame (4) is provided with a limiting component. Protective boxes (8) are fixedly installed on both the front and rear sides of the worktable (1). The interior of each protective box (8) is provided with a moving component, which is fixedly connected to the corresponding moving plate (27). The outer surface of the two moving components facing each other is provided with a lower clamping component, which is connected by a snap-fit ​​component.

2. The automatic engraving machine for automobile wheel hubs according to claim 1, characterized in that: The upper clamping assembly includes a second push cylinder (6), an upper stabilizing plate (10), a connecting rod (12), and a column (14). The second push cylinder (6) is fixedly installed on the top of the support frame (4). The output end of the second push cylinder (6) passes through the support frame (4) and is fixedly connected to the column (14). Two connecting rods (12) are rotatably connected to the outer surface of the column (14). The two connecting rods (12) are arranged vertically. The other end of the two connecting rods (12) is rotatably connected to the corresponding clamping rod (9). The bottom of the two clamping rods (9) is movably connected to the upper stabilizing plate (10). The upper stabilizing plate (10) is arranged in an arc shape. The two upper stabilizing plates (10) are movably engaged with the outer surface of the car wheel hub body (7).

3. The automatic engraving machine for automobile wheel hubs according to claim 1, characterized in that: The limiting component includes a first limiting block (13) and a limiting post (17). The first limiting block (13) is fixedly connected to the outer surface of the connecting plate (11). The top of the first limiting block (13) is provided with a movable hole, which is movably connected to the post (14). The bottom of the post (14) is fixedly connected to the limiting post (17), which is located below the first limiting block (13).

4. The automatic engraving machine for automobile wheel hubs according to claim 3, characterized in that: Four connecting frames (19) are fixedly connected to the bottom of both sides of the first limiting block (13). The four connecting frames (19) are arranged symmetrically. Rollers (16) are rotatably connected to the outer surface of the two corresponding connecting frames (19) facing each other. The limiting post (17) is located between the two rollers (16). The outer surface of the two adjacent connecting frames (19) is fixedly connected to the first telescopic springs (18). The limiting post (17) is movably connected to the two first telescopic springs (18).

5. The automatic engraving machine for automobile wheel hubs according to claim 2, characterized in that: The connecting assembly includes a through hole (15), a telescopic column (20), a connecting column (21), a ball (22), and a second telescopic spring (23). The top of the upper stabilizing plate (10) is fixedly connected to the connecting column (21). Two telescopic columns (20) are fixedly connected to the outer surfaces of both sides of the connecting column (21). The inner surfaces of the two telescopic columns (20) are fixedly connected to the second telescopic spring (23). The top of the two telescopic columns (20) is fixedly connected to the ball (22). The bottom of the clamping rod (9) is provided with an installation hole. The outer surfaces of both sides of the clamping rod (9) are provided with a through hole (15). The installation hole is movably connected to the connecting column (21). The ball (22) is movably engaged with the corresponding through hole (15).

6. The automatic engraving machine for automobile wheel hubs according to claim 1, characterized in that: The conveying assembly includes a conveying roller (3) and a drive motor (39). The drive motor (39) is fixedly installed on the outer surface of the support plate (2). Multiple equidistant conveying rollers (3) are rotatably connected to the outer surface of the two support plates (2) facing each other. The output end of the drive motor (39) is fixedly connected to the conveying roller (3). Multiple car wheel hub bodies (7) are located on top of the conveying roller (3).

7. The automatic engraving machine for automobile wheel hubs according to claim 1, characterized in that: The moving component includes a gear (24), a rack (25), a rectangular groove (29), and a first slider (30). The top of the worktable (1) is rotatably connected to the gear (24), and the outer surfaces of both sides of the gear (24) are meshed with the rack (25). The top of the worktable (1) has two rectangular grooves (29), and the interior of each of the two rectangular grooves (29) is slidably connected to two first sliders (30). The tops of the two first sliders (30) are fixedly connected to the corresponding racks (25). The racks (25) are slidably connected to the top of the worktable (1), and the two racks (25) are fixedly connected to the outer surfaces of the corresponding moving plates (27).

8. The automatic engraving machine for automobile wheel hubs according to claim 1, characterized in that: Two first push cylinders (5) are fixedly installed on the outer surface of the movable plate (27). The output ends of the two first push cylinders (5) are fixedly connected to the outer surface of the movable plate (27). A guide rail (26) is fixedly connected to the top of the worktable (1). Two second sliders (31) are slidably connected to the top two sides of the guide rail (26). The two second sliders (31) are fixedly connected to the interior of the corresponding movable plate (27).

9. An automatic engraving machine for automobile wheel hubs according to claim 1, characterized in that: The lower clamping assembly includes a lower stabilizing plate (28), a clamping block (32), and a transition block (36). Multiple lower clamping assemblies are provided on the outer surface of the two moving plates (27) facing each other. Two transition blocks (36) are fixedly connected to the outer surface of the moving plate (27). The clamping block (32) is rotatably connected to the outer surface of the two transition blocks (36). The lower stabilizing plate (28) is clamped in the two clamping blocks (32). The lower stabilizing plate (28) is arranged in an arc shape. The two corresponding lower stabilizing plates (28) are movably clamped to the outer surface of the car wheel hub body (7).

10. An automatic engraving machine for automobile wheel hubs according to claim 9, characterized in that: The snap-fit ​​assembly includes a fastening post (33), a second limiting block (34), a slot (35), a connecting hole (37), and a thread (38). The top of the adapter block (36) is provided with a connecting hole (37). The fastening post (33) is threadedly connected to the inside of the connecting hole (37). The thread (38) is fixedly connected to the lower outer surface of the fastening post (33). The second limiting block (34) is fixedly connected to the outer surface of the fastening post (33). The top of the clamping block (32) is provided with a slot (35). The second limiting block (34) is located above the slot (35).

Images