A rotary axis of a laser marking machine

Abstract

The utility model relates to laser marking machine technical field discloses a kind of laser marking machine rotating shaft, including fixed frame, the drive assembly is arranged in the fixed frame, the connecting rod is rotatably connected in the outer wall of the drive assembly, the quick-release assembly is arranged in the connecting rod, the fixed block is arranged in the one end of the connecting rod, the chuck is fixedly connected with the outer wall of the fixed block, the chuck is arranged with the clamping assembly inside, the clamping assembly includes inner block and rotating block, the inner block is rotatably connected in the chuck, the rotating block is rotatably in the inner block, the sliding axle is rotatably connected in the rotating block. In the utility model, by moving lever, the inner block is rotated, the rotating block is rotated along with the inner block at this time, the sliding axle is slid in the chuck inside by the rotating block, the clamping block is soft rubber material, to reach the effect of clamping object, solve the problem that traditional clamping block is easy to cause damage to object, lead to object damage, improve stability.

Description

Technical Field

[0001] This utility model relates to the field of laser marking machine technology, and in particular to a rotating shaft for a laser marking machine. Background Technology

[0002] Laser marking machines, as high-precision processing equipment, are widely used in marking and engraving of materials such as metals, plastics, and ceramics. The rotary axis is one of the core components of a laser marking machine. Its function is to achieve multi-angle marking by rotating the workpiece, thereby improving processing efficiency and marking accuracy. With the improvement of industrial automation, higher requirements are placed on the stability, flexibility, and adaptability of the rotary axis. Traditional rotary axes mostly adopt a fixed clamping structure, which is difficult to adapt to workpieces of different shapes and sizes. Especially in precision machining, improper clamping force control can easily lead to workpiece damage. Therefore, developing a laser marking machine rotary axis that combines high stability and flexible clamping capability has become a technical problem that the industry urgently needs to solve.

[0003] Existing laser marking machines typically use mechanical grippers or pneumatic clamps as clamping mechanisms for their rotating shafts. The technical principle is that the grippers are driven to close by a motor or cylinder, and the workpiece is fixed by a rigid contact surface. Mechanical grippers rely on gears or lead screws to open and close, while pneumatic clamps use compressed air to drive a piston. This type of structure has high clamping force and repeatability, which can meet most conventional processing needs. In addition, some high-end equipment uses electromagnetic clamping technology, which uses a magnetic field to attract and fix metal workpieces, but its applicability is limited and its cost is high. Existing technologies generally emphasize clamping rigidity and durability, but lack optimized design for workpiece surface protection during the clamping process.

[0004] The main problem with existing technologies is that clamping mechanisms are prone to damaging the workpiece surface. Since the clamping blocks are mostly made of metal or hard plastic, when clamping brittle materials or high-precision workpieces, the rigid contact surface can cause scratches, indentations, or even structural deformation, which seriously affects product quality. Especially in long-term processing or high-frequency clamping scenarios, the risk of workpiece damage is further aggravated. This problem not only increases the scrap rate but also limits the application of rotary axes in the field of precision machining. Therefore, a flexible clamping solution that can balance stable clamping and workpiece protection is needed to improve the processing adaptability and reliability of laser marking machines. To this end, a rotary axis for laser marking machines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rotating shaft for a laser marking machine, which aims to improve the problem that traditional clamping blocks in the prior art are prone to damaging objects and causing them to break.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rotating shaft for a laser marking machine, including a fixed frame, a driving component is provided inside the fixed frame, a connecting rod is rotatably connected to the outer wall of the driving component, a quick-release component is provided inside the connecting rod, a fixed block is provided at one end of the connecting rod, a clamping plate is fixedly connected to the outer wall of the fixed block, and a clamping component is provided inside the clamping plate;

[0007] The clamping assembly includes an inner block and a rotating block. The inner block is rotatably connected inside the clamping disc. The outer wall of the rotating block rotates inside the inner block. A sliding shaft is rotatably connected inside the rotating block. The outer wall of the sliding shaft is slidably connected inside the clamping disc. A clamping block is fixedly connected to the outer wall of the rotating block. A moving rod is fixedly connected to the outer wall of the inner block. The outer wall of the moving rod is slidably connected inside the clamping disc. A fixing post is fixedly connected inside the clamping disc. A screw is fixedly connected inside the inner block. The outer wall of the screw is slidably connected inside the clamping disc. A tension spring is provided inside the clamping disc.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a coupling and a motor. The coupling is fixedly connected to the outer wall of the fixed frame. One end of the motor is fixedly connected to the outer wall of the fixed frame. The output end of the motor is fixedly connected to the inside of the coupling. One end of the tension spring is fixedly connected to the outer wall of the fixed column. The other end of the tension spring is fixedly connected to the outer wall of the screw.

[0010] As a further description of the above technical solution:

[0011] The quick-release assembly includes a hollow column and a sliding rod. The outer wall of the hollow column is fixedly connected to the inside of the connecting rod, and the outer wall of the sliding rod is rotatably connected to the inside of the hollow column.

[0012] As a further description of the above technical solution:

[0013] A pull block is fixedly connected to one end of the sliding rod, and a limiting block is fixedly connected to the outer wall of the sliding rod;

[0014] As a further description of the above technical solution:

[0015] The fixed block is fixedly connected to a limiting block inside, and the limiting block has a sliding groove inside, so that the limiting block and the limiting block are engaged.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the limiting block is slidably connected to the inside of the slide groove, and the outer wall of the sliding rod is slidably connected to the inside of the fixed block;

[0018] As a further description of the above technical solution:

[0019] The outer wall of the sliding rod is fixedly connected to a limiting ring, and the outer wall of the limiting ring is slidably connected to the inner wall of the hollow column;

[0020] As a further description of the above technical solution:

[0021] A spring is installed inside the hollow column. One end of the spring is fixedly connected to the inside of the hollow column, and the other end of the spring is fixedly connected to the outer wall of the limiting ring.

[0022] This utility model has the following beneficial effects:

[0023] In this invention, the inner block is rotated by moving the movable rod. At this time, the rotating block rotates with the inner block, and the rotating block drives the sliding shaft to slide inside the clamping plate. The clamping block is made of soft rubber, thereby achieving the effect of clamping the object. This solves the problem that traditional clamping blocks are prone to damaging the object, thus improving stability.

[0024] In this invention, rotating the pull block causes the sliding rod to rotate the limiting block. As the limiting block rotates, it aligns with the slide groove. At this point, pulling the pull block causes the limiting block to disengage from the limiting block, thereby achieving the effect of quick disassembly of the clamping plate. This solves the problem that traditional clamping block disassembly requires multiple tools, which makes disassembly inconvenient and improves convenience. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the rotating shaft of a laser marking machine proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the clamping disc structure of the rotating shaft of a laser marking machine proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the connecting rod structure of the rotating shaft of a laser marking machine proposed in this utility model.

[0028] Legend:

[0029] 1. Fixed frame; 2. Coupling; 3. Motor; 4. Connecting rod; 5. Fixed block; 6. Clamping plate; 7. Inner block; 8. Moving rod; 9. Rotating block; 10. Sliding shaft; 11. Clamping block; 12. Fixed column; 13. Tension spring; 14. Screw; 15. Hollow column; 16. Sliding rod; 17. Pull block; 18. Limiting block; 19. Limiting block; 20. Slide groove; 21. Spring; 22. Limiting ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-2 The present invention provides an embodiment of a laser marking machine rotary shaft, including a fixed frame 1, which is used to support and position various components. A drive assembly is provided inside the fixed frame 1 to provide rotational power. A connecting rod 4 is rotatably connected to the outer wall of the drive assembly. The connecting rod 4 is used to transmit torque and connect to the clamping mechanism. A quick-release assembly is provided inside the connecting rod 4 to realize the quick assembly and disassembly of the connecting rod 4. A fixing block 5 is provided at one end of the connecting rod 4 to connect and fix a clamping plate 6. The clamping plate 6 is fixedly connected to the outer wall of the fixing block 5. The clamping plate 6 is used to install and drive the clamping assembly. The clamping assembly is provided inside the clamping plate 6.

[0032] The clamping assembly includes an inner block 7 and a rotating block 9. The inner block 7 drives the rotating block 9 to rotate synchronously. The inner block 7 is rotatably connected inside the clamping plate 6. The rotating block 9 is used to adjust the clamping position of the clamping block 11. The outer wall of the rotating block 9 rotates inside the inner block 7. A sliding shaft 10 is rotatably connected inside the rotating block 9, guiding the rotating block 9 to move radially. The outer wall of the sliding shaft 10 is slidably connected inside the clamping plate 6. The clamping block 11 is fixedly connected to the outer wall of the rotating block 9, directly clamping the workpiece. A moving rod 8 is fixedly connected to the outer wall of the inner block 7, controlling the axial displacement of the inner block 7. The outer wall of the moving rod 8 is slidably connected inside the clamping plate 6. A fixing post 12 is fixedly connected inside the clamping plate 6, fixing the tension spring 13. At the mounting end, a screw 14 is fixedly connected inside the inner block 7. The screw 14 is used to connect the movable end of the tension spring 13. The outer wall of the screw 14 is slidably connected inside the clamping plate 6. One end of the tension spring 13 is fixedly connected to the outer wall of the fixing column 12, and the other end of the tension spring 13 is fixedly connected to the outer wall of the screw 14. The clamping plate 6 is provided with a tension spring 13, which is used to provide clamping force to the clamping block 11 and keep it reset. The drive assembly includes a coupling 2 and a motor 3. The coupling 2 is used to transmit the torque of the motor 3 and compensate for installation deviations. The coupling 2 is fixedly connected inside the outer wall of the fixing frame 1. The motor 3 is used to drive the rotating shaft to rotate. One end of the motor 3 is fixedly connected to the outer wall of the fixing frame 1, and the output end of the motor 3 is fixedly connected inside the coupling 2.

[0033] Reference Figure 3The quick-release assembly includes a hollow column 15 and a sliding rod 16. The hollow column 15 provides the mounting base for the sliding rod 16, and its outer wall is fixedly connected to the inside of the connecting rod 4. The sliding rod 16 enables quick assembly and disassembly, and its outer wall is rotatably connected to the inside of the hollow column 15. A pull block 17 is fixedly connected to one end of the sliding rod 16, which is used for manual operation of the sliding rod 16. A limiting block 18 is fixedly connected to the outer wall of the sliding rod 16, which is used to cooperate with a limiting block 19 to achieve locking. A limiting block 19 is fixedly connected inside the fixing block 5, which limits the range of movement of the sliding rod 16. The part is provided with a sliding groove 20, which is used to guide the sliding trajectory of the limiting block 18. The limiting block 18 and the limiting block 19 are engaged. The outer wall of the limiting block 18 is slidably connected to the inside of the sliding groove 20. The outer wall of the sliding rod 16 is slidably connected to the inside of the fixed block 5. The outer wall of the sliding rod 16 is fixedly connected to the limiting ring 22, which is used to limit the movement stroke of the sliding rod 16. The outer wall of the limiting ring 22 is slidably connected to the inner wall of the hollow column 15. A spring 21 is provided inside the hollow column 15. The spring 21 is used to provide the restoring force of the sliding rod 16. One end of the spring 21 is fixedly connected to the inside of the hollow column 15, and the other end of the spring 21 is fixedly connected to the outer wall of the limiting ring 22.

[0034] Working principle: When clamping an object, by moving the movable rod 8, the rod slides inside the clamping plate 6, causing the inner block 7 to rotate within the clamping plate 6. Simultaneously, the inner block 7 drives the rotating block 9 to rotate, with one end of the rotating block 9 sliding within the clamping plate 6. The object is then placed on the outer wall of the multiple clamping blocks 11. After releasing the movable rod 8, the screw 14 drives the tension spring 13 to reset and lock the object in place. Because the clamping blocks 11 are made of rubber, damage to thin-walled objects during clamping is prevented.

[0035] When disassembling and cleaning the clamping plate 6, rotating the pull block 17 causes the sliding rod 16 to rotate the limiting block 18 inside the hollow column 15 and the fixed block 5, so that the limiting block 18 is released from the restriction of the limiting block 19. Then, after the limiting block 18 and the slide groove 20 are aligned, pulling the pull block 17 causes the sliding rod 16 to slide the limiting ring 22 and the spring 21 inside the hollow column 15, so that the sliding rod 16 and the limiting block 18 are released from the fixed block 5. Then, the fixed block 5 can be pulled out to separate the clamping plate 6 and the connecting rod 4. During installation, the pull block 17 is released, the spring 21 releases its elastic potential energy, so that the limiting ring 22 drives the sliding rod 16 into the fixed block 5. Rotating the pull block 17 causes the limiting block 18 to engage with the limiting block 19, and the installation is completed.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotating shaft for a laser marking machine, comprising a fixed frame (1), characterized in that: The fixed frame (1) is provided with a drive assembly inside. A connecting rod (4) is rotatably connected to the outer wall of the drive assembly. A quick-release assembly is provided inside the connecting rod (4). A fixing block (5) is provided at one end of the connecting rod (4). A clamping plate (6) is fixedly connected to the outer wall of the fixing block (5). A clamping assembly is provided inside the clamping plate (6). The clamping assembly includes an inner block (7) and a rotating block (9). The inner block (7) is rotatably connected inside the clamping plate (6). The outer wall of the rotating block (9) rotates inside the inner block (7). A sliding shaft (10) is rotatably connected inside the rotating block (9). The outer wall of the sliding shaft (10) is slidably connected inside the clamping plate (6). A clamping block (11) is fixedly connected to the outer wall of the rotating block (9). A moving rod (8) is fixedly connected to the outer wall of the inner block (7). The outer wall of the moving rod (8) is slidably connected inside the clamping plate (6). A fixing post (12) is fixedly connected inside the clamping plate (6). A screw (14) is fixedly connected inside the inner block (7). The outer wall of the screw (14) is slidably connected inside the clamping plate (6). A tension spring (13) is provided inside the clamping plate (6).

2. The rotary shaft of a laser marking machine according to claim 1, characterized in that: The drive assembly includes a coupling (2) and a motor (3). The coupling (2) is fixedly connected to the outer wall of the fixed frame (1). One end of the motor (3) is fixedly connected to the outer wall of the fixed frame (1). The output end of the motor (3) is fixedly connected to the inside of the coupling (2). One end of the tension spring (13) is fixedly connected to the outer wall of the fixed column (12). The other end of the tension spring (13) is fixedly connected to the outer wall of the screw (14).

3. The rotary shaft of a laser marking machine according to claim 1, characterized in that: The quick-release assembly includes a hollow column (15) and a sliding rod (16). The outer wall of the hollow column (15) is fixedly connected to the inside of the connecting rod (4), and the outer wall of the sliding rod (16) is rotatably connected to the inside of the hollow column (15).

4. The rotary shaft of a laser marking machine according to claim 3, characterized in that: One end of the sliding rod (16) is fixedly connected to a pull block (17), and a limiting block (18) is fixedly connected to the outer wall of the sliding rod (16).

5. The rotary shaft of a laser marking machine according to claim 4, characterized in that: The fixed block (5) is fixedly connected to the limiting block (19), and the limiting block (19) has a sliding groove (20) inside. The limiting block (18) and the limiting block (19) are engaged.

6. The rotary shaft of a laser marking machine according to claim 4, characterized in that: The outer wall of the limiting block (18) is slidably connected to the inside of the slide groove (20), and the outer wall of the sliding rod (16) is slidably connected to the inside of the fixed block (5).

7. The rotary shaft of a laser marking machine according to claim 3, characterized in that: The outer wall of the sliding rod (16) is fixedly connected to a limiting ring (22), and the outer wall of the limiting ring (22) is slidably connected to the inner wall of the hollow column (15).

8. The rotary shaft of a laser marking machine according to claim 3, characterized in that: A spring (21) is provided inside the hollow column (15). One end of the spring (21) is fixedly connected inside the hollow column (15), and the other end of the spring (21) is fixedly connected to the outer wall of the limiting ring (22).

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