A laser cutting device based on an intelligent manufacturing platform

Abstract

The application provides a laser cutting device based on an intelligent manufacturing platform, which comprises a mounting frame, a top plate, a driving mechanism, a rotatable cantilever guide rail, an annular guide rail, a laser head pitching driving assembly and a locking assembly. The cantilever guide rail is driven to rotate by the driving mechanism through a gear and a rotating shaft, and the distal end thereof is slidably attached to the annular guide rail to assist in supporting. The laser head pitching driving assembly is installed on a radially movable sliding block, and drives the laser head to pitch and swing through gear transmission. The locking assembly comprises a limiting block controlled by an electric telescopic rod through a connecting rope, and can be rigidly locked by being inserted into a limiting hole on the annular rail. Through the above structure, the application realizes efficient rotary sweeping processing of large annular workpieces, five-axis linkage tracking cutting of three-dimensional curved surfaces, and rigid and flexible dual-mode processing and active safety locking through intelligent control.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device based on an intelligent manufacturing platform. Background Technology

[0002] In the field of laser processing, although traditional gantry and cantilever laser cutting machines are widely used, their linear motion mode has inherent defects when dealing with large ring, fan-shaped or circumferentially distributed workpieces. The huge linear stroke required by the equipment to cover the rectangular working area has extremely low utilization when actually processing circular contours, resulting in large footprint, high cost and insufficient efficiency. For complex workpieces with inclined surfaces or three-dimensional curved surfaces, expensive multi-axis linkage special machine tools are usually required. These types of equipment not only have limited processing range, but also make it difficult to achieve synchronous and efficient processing of symmetrical parts.

[0003] In addition, the existing equipment generally has a low level of intelligence and lacks the ability to be deeply integrated with the upper-level manufacturing platform. Its process monitoring, adaptive process adjustment and predictive maintenance functions are weak. In terms of safety, it relies more on electrical systems and external protection and lacks an active mechanical safety redundancy mechanism integrated into the equipment. Therefore, the market needs a new type of laser processing equipment that can efficiently cover circular areas, has multi-dimensional processing flexibility, and can be deeply integrated with intelligent manufacturing systems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a laser cutting device based on an intelligent manufacturing platform, which solves the problems of low processing efficiency for large-size ring-shaped workpieces, difficulty in one-time forming of complex three-dimensional curved surfaces, and insufficient equipment intelligence and safety redundancy.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a laser cutting device based on an intelligent manufacturing platform, comprising: a mounting frame, a top plate fixedly connected to the upper end of the mounting frame, a first bracket fixedly connected to the upper end of the top plate, a second large gear disposed below the first bracket, a rotating shaft fixedly connected to the lower end of the second large gear, the lower end of the rotating shaft penetrating the top plate, the outer surface of the rotating shaft rotatably connected to the inner wall of the top plate, a guide rail fixedly connected to the lower end of the rotating shaft, a fixing ring fixedly connected to the lower end of the top plate, a limit hole disposed on the side of the fixing ring, a limit ring fixedly connected to the lower end of the fixing ring, the upper surface of the guide rail slidingly fitting against the lower surface of the limit ring, a first slider slidably connected inside the guide rail, a laser head pitch drive assembly disposed at the lower end of the first slider, and locking assemblies disposed near both sides of the upper end of the guide rail; The laser head pitch drive assembly includes: The third support is located at the lower end of the first slider; The third drive motor is located on the rear surface of the third bracket near the upper end, and its output end extends into the interior of the third bracket and is fixedly connected to a small gear. The laser cutting head is located at the bottom of the third bracket and is rotatably connected to the inside of the third bracket. A semi-circular gear is fixedly connected to its upper end. The locking component includes: A support block is located at the upper end of the guide rail, and a second slider is fixedly connected to its front end. The second slider has an installation groove inside, and the lower end of the second slider slides against the upper surface of the limiting ring. The third slider is located inside the mounting groove and is slidably connected to the inner wall of the mounting groove. A limit block is fixedly connected to the front end of the third slider, and the front end of the limit block extends to the outside of the second slider and is inserted into the limit hole. A connecting rope is located at the rear end of the third slider. A spring is sleeved on its outer side. Its rear end passes through the support block and is fixedly connected to a connecting plate. An electric telescopic rod is fixedly connected to the rear end of the connecting plate.

[0006] Preferably, a first drive motor is fixedly connected to the upper end of the first bracket, the output end of the first drive motor extends to the lower part of the first bracket and is fixedly connected to a first large gear, and the outer surface of the first large gear meshes with a second large gear.

[0007] Preferably, a visual recognition module is provided on both sides of the lower surface of the top plate, and a control device is fixedly connected to the upper surface of the top plate near the front end.

[0008] Preferably, a second drive motor is fixedly connected to the left end of the guide rail, the output end of the second drive motor extends into the interior of the guide rail and is fixedly connected to a positive and negative threaded rod, and the outer surface of the positive and negative threaded rod is threadedly connected to the first slider.

[0009] Preferably, there are two first sliders, which are located at both ends inside the guide rail, and there are two laser head pitch drive components, which correspond one-to-one with the first sliders.

[0010] Preferably, a third large gear is provided between the pinion and the semi-circular gear, and the third large gear meshes with both the pinion and the semi-circular gear.

[0011] Preferably, the number of limiting holes is multiple and they are distributed in a ring around the side of the fixing ring.

[0012] Preferably, the spring is located between the rear surface of the third slider and the rear inner wall of the mounting groove.

[0013] Preferably, an L-shaped second bracket is fixedly connected to the rear surface of the support block, the front end of the second bracket is fixedly connected to the electric telescopic rod, and guide rods are fixedly connected to both sides of the front end of the second bracket near the electric telescopic rod, and the front end of the guide rods is fixedly connected to the connecting plate.

[0014] (III) Beneficial Effects This invention provides a laser cutting device based on an intelligent manufacturing platform. It has the following beneficial effects: This laser cutting device based on an intelligent manufacturing platform is equipped with a laser head pitch drive assembly and a locking assembly. The laser head pitch drive assembly, through a compact gear transmission structure, gives the laser cutting head independent pitch and oscillation capabilities, enabling real-time normal tracking of the beam onto a three-dimensional curved surface. This ensures that a vertical and smooth cross-section can be obtained when cutting any inclined surface, fundamentally solving the problem of one-time forming accuracy for complex workpieces.

[0015] The locking assembly adopts a purely mechanical design with spring self-locking and electronic disengagement, which provides a fail-safe, absolutely rigid locking mechanism. This ensures inherent safety during power outages and maintenance, and transforms the massive cantilever mechanism into a perfectly stationary static platform during high-precision machining, eliminating all backlash and vibration.

[0016] When the locking assembly is released, the pitch drive assembly can work with full degrees of freedom, and the equipment can perform high-speed dynamic surface cutting like a five-axis robot. When the locking assembly is activated and the cantilever is rigidly locked, the pitch drive assembly can be precisely adjusted within the range, turning the equipment into a rigid fixed-axis precision machine tool. This allows the same equipment to unprecedentedly combine the range of a large five-axis machining center with the static accuracy of a small precision machine tool. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the dual laser cutting head spacing adjustment mechanism of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This is a schematic diagram of the rotating mechanism of the present invention.

[0018] The components are as follows: 1. Mounting bracket; 2. Top plate; 3. Control device; 4. First drive motor; 5. Vision recognition module; 6. Guide rail; 7. First bracket; 8. First large gear; 9. Second large gear; 10. Rotating shaft; 11. Laser cutting head; 12. Positive and negative threaded rods; 13. Second drive motor; 14. First slider; 15. Support block; 16. Second slider; 17. Limiting hole; 18. Limiting block; 19. Mounting groove; 20. Connecting rope; 21. Third slider; 22. Connecting plate; 23. Second bracket; 24. Electric telescopic rod; 25. Guide rod; 26. Fixing ring; 27. Limiting ring; 28. Third bracket; 29. ​​Third drive motor; 30. Small gear; 31. Third large gear; 32. Semi-circular gear; 33. Spring. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 like Figure 1-6 As shown, this embodiment of the invention provides a laser cutting device based on an intelligent manufacturing platform, including a mounting frame 1. A top plate 2 is fixedly connected to the upper end of the mounting frame 1. A first bracket 7 is fixedly connected to the upper end of the top plate 2. A second large gear 9 is arranged below the first bracket 7. A rotating shaft 10 is fixedly connected to the lower end of the second large gear 9. The lower end of the rotating shaft 10 passes through the top plate 2. The outer surface of the rotating shaft 10 is rotatably connected to the inner wall of the top plate 2. A guide rail 6 is fixedly connected to the lower end of the rotating shaft 10. A fixing ring 26 is fixedly connected to the lower end of the top plate 2. A limit hole 17 is provided on the side of the fixing ring 26. A limit ring 27 is fixedly connected to the lower end of the fixing ring 26. The upper surface of the guide rail 6 slides against the lower surface of the limit ring 27. A first slider 14 is slidably connected inside the guide rail 6. A laser head pitch drive assembly is arranged at the lower end of the first slider 14. Locking assemblies are arranged near both sides of the upper end of the guide rail 6.

[0021] The upper end of the first bracket 7 is fixedly connected to the first drive motor 4. The output end of the first drive motor 4 extends to the lower part of the first bracket 7 and is fixedly connected to the first large gear 8. The outer surface of the first large gear 8 meshes with the second large gear 9. The sweeping motion of the rotating cantilever guide rail 6 replaces the traditional linear motion. The first drive motor 4 meshes with the second large gear 9 through the first large gear 8, driving the rotating shaft 10 to drive the guide rail 6 to rotate at multiple angles.

[0022] Visual recognition modules 5 are provided on both sides of the lower surface of the top plate 2. A control device 3 is fixedly connected to the upper surface of the top plate 2 near the front end. A second drive motor 13 is fixedly connected to the left end of the guide rail 6. The output end of the second drive motor 13 extends into the interior of the guide rail 6 and is fixedly connected to a positive and negative threaded rod 12. The outer surface of the positive and negative threaded rod 12 is threadedly connected to the first slider 14.

[0023] There are two first sliders 14, which are located at both ends inside the guide rail 6. There are two laser head pitch drive components, which correspond one-to-one with the first sliders 14.

[0024] The laser head pitch drive assembly includes: The third support 28 is located at the lower end of the first slider 14.

[0025] The third drive motor 29 is located on the rear surface of the third bracket 28 near the upper end, and its output end extends into the interior of the third bracket 28 and is fixedly connected to a pinion 30.

[0026] The laser cutting head 11 is located at the bottom of the third support 28 and is rotatably connected to the inside of the third support 28. A semi-circular gear 32 is fixedly connected to its upper end.

[0027] A third large gear 31 is provided between the pinion 30 and the semi-circular gear 32, and the third large gear 31 is meshed with the pinion 30 and the semi-circular gear 32 respectively.

[0028] The locking components include: The support block 15 is located at the upper end of the guide rail 6, and a second slider 16 is fixedly connected to its front end. The second slider 16 has an installation groove 19 inside, and the lower end of the second slider 16 slides and fits against the upper surface of the limiting ring 27.

[0029] The third slider 21 is located inside the mounting groove 19 and is slidably connected to the inner wall of the mounting groove 19. The front end of the third slider 21 is fixedly connected to the limiting block 18, and the front end of the limiting block 18 extends to the outside of the second slider 16 and is inserted into the limiting hole 17.

[0030] The connecting rope 20 is located at the rear end of the third slider 21. A spring 33 is sleeved on its outer side. Its rear end passes through the support block 15 and is fixedly connected to the connecting plate 22. An electric telescopic rod 24 is fixedly connected to the rear end of the connecting plate 22.

[0031] Example 2 like Figure 1-6As shown, this embodiment of the invention provides a laser cutting device based on an intelligent manufacturing platform, including a mounting frame 1. A top plate 2 is fixedly connected to the upper end of the mounting frame 1. A first bracket 7 is fixedly connected to the upper end of the top plate 2. A second large gear 9 is arranged below the first bracket 7. A rotating shaft 10 is fixedly connected to the lower end of the second large gear 9. The lower end of the rotating shaft 10 passes through the top plate 2. The outer surface of the rotating shaft 10 is rotatably connected to the inner wall of the top plate 2. A guide rail 6 is fixedly connected to the lower end of the rotating shaft 10. A fixing ring 26 is fixedly connected to the lower end of the top plate 2. A limit hole 17 is provided on the side of the fixing ring 26. A limit ring 27 is fixedly connected to the lower end of the fixing ring 26. The upper surface of the guide rail 6 slides against the lower surface of the limit ring 27. A first slider 14 is slidably connected inside the guide rail 6. A laser head pitch drive assembly is arranged at the lower end of the first slider 14. Locking assemblies are arranged near both sides of the upper end of the guide rail 6.

[0032] The upper end of the first bracket 7 is fixedly connected to the first drive motor 4. The output end of the first drive motor 4 extends to the lower part of the first bracket 7 and is fixedly connected to the first large gear 8. The outer surface of the first large gear 8 meshes with the second large gear 9. The sweeping motion of the rotating cantilever guide rail 6 replaces the traditional linear motion. The first drive motor 4 meshes with the second large gear 9 through the first large gear 8, driving the rotating shaft 10 to drive the guide rail 6 to rotate at multiple angles.

[0033] Visual recognition modules 5 are provided on both sides of the lower surface of the top plate 2. A control device 3 is fixedly connected to the upper surface of the top plate 2 near the front end. A second drive motor 13 is fixedly connected to the left end of the guide rail 6. The output end of the second drive motor 13 extends into the interior of the guide rail 6 and is fixedly connected to a positive and negative threaded rod 12. The outer surface of the positive and negative threaded rod 12 is threadedly connected to the first slider 14.

[0034] The laser head pitch drive assembly includes: The third support 28 is located at the lower end of the first slider 14.

[0035] The third drive motor 29 is located on the rear surface of the third bracket 28 near the upper end, and its output end extends into the interior of the third bracket 28 and is fixedly connected to a pinion 30.

[0036] The laser cutting head 11 is located at the bottom of the third support 28 and is rotatably connected to the inside of the third support 28. A semi-circular gear 32 is fixedly connected to its upper end.

[0037] The locking components include: The support block 15 is located at the upper end of the guide rail 6. The front end of the support block 15 is fixedly connected to the second slider 16. The second slider 16 has an installation groove 19 inside. The lower end of the second slider 16 slides and fits against the upper surface of the limiting ring 27. The far end of the guide rail 6 slides and fits against the limiting ring 27 fixed under the top plate 2 through the second slider 16, forming a structure with central drive plus far-end auxiliary support, which solves the problem of rigidity of long cantilever.

[0038] The third slider 21 is located inside the mounting groove 19 and is slidably connected to the inner wall of the mounting groove 19. The front end of the third slider 21 is fixedly connected to the limiting block 18, and the front end of the limiting block 18 extends to the outside of the second slider 16 and is inserted into the limiting hole 17.

[0039] The connecting rope 20 is located at the rear end of the third slider 21. A spring 33 is sleeved on its outer side. Its rear end passes through the support block 15 and is fixedly connected to the connecting plate 22. An electric telescopic rod 24 is fixedly connected to the rear end of the connecting plate 22.

[0040] The number of limiting holes 17 is multiple and they are distributed in a ring around the side of the fixing ring 26. The spring 33 is located between the rear surface of the third slider 21 and the rear inner wall of the mounting groove 19. The rear surface of the support block 15 is fixedly connected to an L-shaped second bracket 23. The front end of the second bracket 23 is fixedly connected to the electric telescopic rod 24. The front end of the second bracket 23 is fixedly connected to the two sides near the electric telescopic rod 24. The front end of the guide rod 25 is fixedly connected to the connecting plate 22.

[0041] Under normal conditions, the locking assembly is rigidly locked by spring 33 pushing the third slider 21 to insert the limit block 18 into the limit hole 17 of the fixed ring 26. During operation, the electric telescopic rod 24 pulls the connecting plate 22 through the connecting rope 20 to overcome the force of spring 33 and disengage the limit block 18. The locking logic is linked with the control system and can actively trigger mechanical braking in case of failure. The entire device achieves a fully closed-loop coordinated operation from rotation positioning, radial distance adjustment, pitch tracking to intelligent locking.

[0042] Working principle: The sweeping motion of the rotating cantilever guide rail 6 replaces the traditional linear motion. The first drive motor 4 meshes with the first large gear 8 and the second large gear 9 to drive the rotating shaft 10 to rotate the guide rail 6 at multiple angles. The far end of the guide rail 6 slides against the limiting ring 27 fixed under the top plate 2 through the second slider 16, forming a structure with a central drive plus a far-end auxiliary support, which solves the problem of rigidity of long cantilever. The guide rail 6 is equipped with two sets of first sliders 14 whose radial positions are synchronously adjusted by the positive and negative threaded rods 12 driven by the second drive motor 13.

[0043] Each slider is connected to a laser head pitch drive assembly. The third drive motor 29 drives the pinion 30, which is then transmitted to the semi-circular gear 32 fixed to the laser cutting head 11 via the third large gear 31, enabling the laser beam to vertically track the curved surface. The control device 3 and vision recognition module 5 on the top plate 2 receive platform instructions and coordinate to control all motors.

[0044] Under normal conditions, the locking assembly is rigidly locked by spring 33 pushing the third slider 21 to insert the limit block 18 into the limit hole 17 of the fixed ring 26. During operation, the electric telescopic rod 24 pulls the connecting plate 22 through the connecting rope 20 to overcome the force of spring 33 and disengage the limit block 18. The locking logic is linked with the control system and can actively trigger mechanical braking in case of failure. The entire device achieves a fully closed-loop coordinated operation from rotation positioning, radial distance adjustment, pitch tracking to intelligent locking.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device based on an intelligent manufacturing platform, characterized in that, include: Mounting bracket (1), the upper end of which is fixedly connected to a top plate (2), the upper end of which is fixedly connected to a first bracket (7), a second large gear (9) is provided below the first bracket (7), the lower end of which is fixedly connected to a rotating shaft (10), the lower end of which penetrates the top plate (2), the outer surface of which is rotatably connected to the inner wall of the top plate (2), and the lower end of which is fixedly connected to a guide rail (6). The top plate (2) is fixedly connected to a fixing ring (26) at its lower end. The fixing ring (26) has a limit hole (17) on its side. The fixing ring (26) is fixedly connected to a limit ring (27) at its lower end. The upper surface of the guide rail (6) is slidably attached to the lower surface of the limit ring (27). The guide rail (6) is slidably connected to a first slider (14). The lower end of the first slider (14) is provided with a laser head pitch drive assembly. The upper end of the guide rail (6) is provided with locking assemblies near both sides. The laser head pitch drive assembly includes: The third support (28) is located at the lower end of the first slider (14); The third drive motor (29) is located on the rear surface of the third bracket (28) near the upper end, and its output end extends into the interior of the third bracket (28) and is fixedly connected to a small gear (30). A laser cutting head (11) is located at the bottom of the third bracket (28) and is rotatably connected to the inside of the third bracket (28), and a semi-circular gear (32) is fixedly connected to its upper end. The locking component includes: The support block (15) is located at the upper end of the guide rail (6), and a second slider (16) is fixedly connected to its front end. The second slider (16) has an installation groove (19) inside, and the lower end of the second slider (16) slides against the upper surface of the limiting ring (27). The third slider (21) is located inside the mounting groove (19) and is slidably connected to the inner wall of the mounting groove (19). The front end of the third slider (21) is fixedly connected to a limiting block (18). The front end of the limiting block (18) extends to the outside of the second slider (16) and is inserted into the limiting hole (17). The connecting rope (20) is located at the rear end of the third slider (21), and a spring (33) is sleeved on its outer side. Its rear end passes through the support block (15) and is fixedly connected to the connecting plate (22). The rear end of the connecting plate (22) is fixedly connected to the electric telescopic rod (24).

2. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: The upper end of the first bracket (7) is fixedly connected to the first drive motor (4), the output end of the first drive motor (4) extends to the bottom of the first bracket (7) and is fixedly connected to the first large gear (8), and the outer surface of the first large gear (8) meshes with the second large gear (9).

3. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: The lower surface of the top plate (2) is provided with visual recognition modules (5) near both sides, and the upper surface of the top plate (2) is fixedly connected with a control device (3) near the front end.

4. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: The left end of the guide rail (6) is fixedly connected to a second drive motor (13). The output end of the second drive motor (13) extends into the interior of the guide rail (6) and is fixedly connected to a positive and negative threaded rod (12). The outer surface of the positive and negative threaded rod (12) is threadedly connected to the first slider (14).

5. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: There are two first sliders (14) located at both ends inside the guide rail (6), and there are two laser head pitch drive components that correspond one-to-one with the first sliders (14).

6. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: A third large gear (31) is provided between the small gear (30) and the semi-circular gear (32), and the third large gear (31) meshes with the small gear (30) and the semi-circular gear (32) respectively.

7. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: The number of limiting holes (17) is multiple and they are distributed in a ring around the side of the fixing ring (26).

8. The laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: The spring (33) is located between the rear surface of the third slider (21) and the rear inner wall of the mounting groove (19).

9. A laser cutting device based on an intelligent manufacturing platform according to claim 1, characterized in that: The rear surface of the support block (15) is fixedly connected to an L-shaped second bracket (23). The front end of the second bracket (23) is fixedly connected to the electric telescopic rod (24). Guide rods (25) are fixedly connected to both sides of the front end of the second bracket (23) near the electric telescopic rod (24). The front end of the guide rods (25) is fixedly connected to the connecting plate (22).

Images