A laser cutting and servo edge cutting linkage device

Abstract

The utility model provides a kind of laser cutting resistance and servo edge cutting linkage device, it is related to laser cutting technical field, including support, the outer wall of support is equipped with controller, the top of support is fixed with fixed frame, the fixed frame is equipped with moving frame, the moving frame is equipped with moving block, the laser cutting resistance mechanism is installed in the moving block, the cutting head part of the laser cutting resistance mechanism is equipped with displacement sensor and pressure sensor. In the cutting head part of laser cutting resistance mechanism, high-precision pressure sensor and displacement sensor are integrated. Pressure sensor monitors the resistance change of material to laser head in cutting process in real time, and displacement sensor accurately measures the position change of laser head. When the pressure sensor detects that the resistance exceeds the preset range, the signal is quickly transmitted to the central controller, and the system automatically adjusts the output power, spot size and cutting speed and other parameters of the laser according to the preset algorithm, which is more practical.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular to a laser cutting resistance and servo cutting edge linkage device. Background Technology

[0002] In the wave of rapid development of modern manufacturing, many fields such as electronics, automobiles, and aerospace have placed extremely stringent demands on the processing precision and production efficiency of components. Laser resistive cutting technology, with its high-energy-density laser beam, can precisely change resistance values ​​or complete cutting tasks, playing a crucial role in the manufacturing of electronic components and enabling precise processing of components such as resistors. Meanwhile, servo edge cutting technology, using a servo motor to drive the edge cutting die, can perform high-precision cutting of product edges according to preset paths and parameters, making it indispensable in the edge processing of many products, such as the edge cutting of metal sheets and plastic parts.

[0003] In existing technologies, the laser cutting resistance and servo edge cutting linkage device often operates independently, lacking an effective linkage mechanism. During laser cutting resistance, precise control of cutting resistance is difficult, frequently leading to unstable cutting quality. Regarding edge cutting, taking common gypsum board production as an example, traditional cutters rely on mechanical gear transmission, which suffers from short transmission distances, high mechanical losses, and limited transmission ratios. This is detrimental to three-control feed saw edge cutting, easily causing malfunctions and increasing scrap rates. Furthermore, cutting length errors result in material waste. Utility Model Content

[0004] This utility model mainly provides a laser cutting resistance and servo cutting linkage device that can accurately control cutting resistance, improve cutting quality, and greatly reduce the impact of speed changes on mechanical equipment in terms of edge cutting, making the edge cutting process more stable and efficient, and can adapt to the edge cutting needs of different plate thicknesses and materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a laser cutting and servo cutting linkage device, comprising a bracket, a controller mounted on the outer wall of the bracket, a fixed frame fixed at the top of the bracket, a movable frame inside the fixed frame, a movable block inside the movable frame, a laser cutting mechanism mounted inside the movable block, a displacement sensor and a pressure sensor mounted on the cutting head of the laser cutting mechanism, a displacement structure for driving the laser cutting mechanism to move in multiple directions inside the fixed frame, a third electric telescopic rod mounted at one end of the bracket, a support plate at the output end of the third electric telescopic rod, electric push rods mounted on both sides of one end of the support plate, clamps fixed at opposite ends of the two electric push rods, a fourth electric telescopic rod mounted at both ends of the bracket, a second motor at the output end of each of the two fourth electric telescopic rods, an external encoder mounted at the output end of each of the two second motors, and a cutter mounted at the output end of each of the two external encoders.

[0006] Preferably, the displacement structure includes a first electric telescopic rod installed on the inner wall of the fixed frame. The output end of the first electric telescopic rod is fixed to the moving frame. A second electric telescopic rod is installed on the inner wall of the moving frame. The output end of the second electric telescopic rod is fixed to the moving block. By operating the first electric telescopic rod, the moving frame as a whole can move laterally. Then, by operating the second electric telescopic rod, the moving block as a whole can move vertically. Based on the lateral movement of the moving frame as a whole, the moving block inside the device can move vertically, thereby enabling the laser cutting mechanism installed inside the moving block to move in multiple directions according to actual needs, making it more practical.

[0007] Preferably, both ends of the movable block and the movable frame are fixed with stabilizing blocks, and both ends of the inner walls of the movable frame and the fixed frame are provided with stabilizing grooves that match the stabilizing blocks. By setting the stabilizing blocks and stabilizing grooves, they can provide auxiliary support to the movable frame and the movable block respectively, avoiding the risk of damage to the first electric telescopic rod and the second electric telescopic rod when supported alone, thus improving stability.

[0008] Preferably, the output end of the third electric telescopic rod is fixed with a first connecting plate, and a first motor is installed at one end of the first connecting plate. The output end of the first motor is fixed to the support plate. By running the first motor, the angle of the plate to be processed, held by the clamping plate, can be adjusted to facilitate subsequent processing.

[0009] Preferably, a stabilizing plate is rotatably connected between the support plate and the first connecting plate on the outside of the first motor. With the stabilizing plate, when the first motor supports the support plate and the clamped plate alone, the stabilizing plate can provide auxiliary support for the support plate and avoid damage to the first motor.

[0010] Preferably, the output end of the fourth electric telescopic rod is fixed with a second connecting plate, the second motor is installed on the end of the second connecting plate facing away from the fourth electric telescopic rod, and the bottom of the bracket is fixed with support legs at all four corners. By setting the second connecting plate, the second motor has a force point, making its operation more stable.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, a high-precision pressure sensor and a displacement sensor are integrated into the cutting head of the laser cutting mechanism. The pressure sensor monitors the changes in the resistance of the material to the laser head in real time during the cutting process, while the displacement sensor accurately measures the positional changes of the laser head. When the pressure sensor detects that the resistance exceeds a preset range, the signal is quickly transmitted to the central controller. The system automatically adjusts parameters such as the laser output power, spot size, and cutting speed according to a preset algorithm. For example, when cutting harder materials causes increased resistance, the system automatically increases the laser power while appropriately reducing the cutting speed to ensure the stability of the cutting process and reduce kerf defects. Furthermore, this device uses an independent second motor to drive the two cutters separately, abandoning the traditional mechanical gear synchronous transmission method. Through advanced motion control algorithms, the movement trajectories of the upper and lower cutters can be precisely coordinated. During the cutting process, the movement of the cutter and its rotating shaft is divided into an acceleration phase, a synchronization phase, and a deceleration phase. During the acceleration phase, the cutter rapidly accelerates from a standstill to match the speed of the sheet material, ensuring a smooth cut. In the synchronization phase, the horizontal component of the cutter's linear velocity strictly matches the sheet material's speed, effectively guaranteeing the quality of the sheared section and preventing scratches on the sheet surface. The deceleration phase brings the cutter to a smooth stop. Simultaneously, an external encoder is introduced to control the spindle of the second motor. Through a carefully designed CAM curve, the speed and position relationship between the second motor's spindle and the cutter's driven shaft are precisely defined. This method significantly reduces the impact of speed changes on the machinery, making the trimming process more stable and efficient, and adaptable to trimming requirements of different sheet thicknesses and materials. Attached Figure Description

[0012] Figure 1 A perspective view of a laser cutting and servo cutting linkage device is provided for this utility model; Figure 2 This utility model provides a schematic diagram of the displacement structure of a laser cutting and servo cutting linkage device; Figure 3 This utility model provides a schematic diagram of the external structure of the clamping plate of a laser cutting and servo cutting linkage device; Figure 4 This invention presents a schematic diagram of the external structure of the cutter in a laser cutting and servo cutting linkage device.

[0013] Legend: 1. Bracket; 2. Controller; 3. Fixed frame; 4. Moving frame; 5. Moving block; 6. Laser cutting mechanism; 7. Displacement sensor; 8. Pressure sensor; 9. Displacement structure; 901. First electric telescopic rod; 902. Second electric telescopic rod; 10. Stabilizing block; 11. Stabilizing groove; 12. Third electric telescopic rod; 13. First connecting plate; 14. First motor; 15. Support plate; 16. Electric push rod; 17. Clamping plate; 18. Stabilizing plate; 19. Fourth electric telescopic rod; 20. Second connecting plate; 21. Second motor; 22. External encoder; 23. Cutter; 24. Support leg. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Please see Figures 1-4This utility model provides a technical solution: a laser cutting and servo cutting linkage device, including a bracket 1, a controller 2 installed on the outer wall of the bracket 1, a fixed frame 3 fixed at the top of the bracket 1, a movable frame 4 inside the fixed frame 3, a movable block 5 inside the movable frame 4, a laser cutting mechanism 6 installed inside the movable block 5, a displacement sensor 7 and a pressure sensor 8 installed at the cutting head of the laser cutting mechanism 6, a displacement structure 9 inside the fixed frame 3 for driving the laser cutting mechanism 6 to move in multiple directions, and a third electric telescopic rod 12 installed at one end of the bracket 1. The output end of the telescopic rod 12 is equipped with a support plate 15. Electric push rods 16 are installed on both sides of one end of the support plate 15. Clamping plates 17 are fixed to the opposite ends of the two electric push rods 16. Fourth electric telescopic rods 19 are installed at both ends of the bracket 1. Second motors 21 are installed at the output ends of the two fourth electric telescopic rods 19. External encoders 22 are installed at the output ends of the two second motors 21. Cutting blades 23 are installed at the output ends of the two external encoders 22. This device integrates a high-precision pressure sensor 8 and a displacement sensor 7 at the cutting head of the laser cutting mechanism 6. The pressure sensor 8 monitors the change in resistance of the material to the laser head in real time during the cutting process, while the displacement sensor 7 accurately measures the positional changes of the laser head. When the pressure sensor 8 detects that the resistance exceeds the preset range, the signal is quickly transmitted to the central controller 2. The system automatically adjusts parameters such as the laser output power, spot size, and cutting speed according to a preset algorithm. For example, when cutting harder materials increases resistance, the system automatically increases the laser power while appropriately reducing the cutting speed to ensure the stability of the cutting process and reduce cut defects. Furthermore, the device uses an independent second motor 21 to drive the two cutters 23, abandoning the traditional mechanical gear synchronous transmission method. Through advanced motion control algorithms, the movement trajectories of the upper and lower cutters 23 can be precisely coordinated. During the cutting process, the movement of the cutter 23 and its rotating shaft is divided into acceleration, synchronization, and deceleration phases. In the acceleration phase, the cutter 23 rapidly accelerates from rest to the same speed as the material, ensuring the blade can smoothly cut into the material. In the synchronization phase, the horizontal component of the blade's linear velocity is strictly consistent with the material's speed, effectively ensuring the quality of the sheared section and avoiding scratches on the material surface. The deceleration phase brings the cutter 23 to a smooth stop. Meanwhile, an external encoder 22 is introduced as the main shaft for controlling the second motor 21. Through a carefully designed CAM curve, the speed and position relationship between the main shaft of the second motor 21 and the driven shaft of the cutter 23 is precisely defined. This method greatly reduces the impact of speed changes on the mechanical equipment, making the cutting process more stable and efficient, and can adapt to the cutting requirements of different plate thicknesses and materials. Through the operation of the displacement structure 9, the position of the laser cutting mechanism 6 can be adjusted.

[0017] like Figure 1-4As shown, the displacement structure 9 includes a first electric telescopic rod 901 installed on the inner wall of the fixed frame 3. The output end of the first electric telescopic rod 901 is fixed to the movable frame 4. A second electric telescopic rod 902 is installed on the inner wall of the movable frame 4. The output end of the second electric telescopic rod 902 is fixed to the movable block 5. By operating the first electric telescopic rod 901, the movable frame 4 can be moved laterally as a whole. Then, by operating the second electric telescopic rod 902, the movable block 5 can be moved vertically as a whole. Based on the lateral movement of the movable frame 4, the movable block 5 inside the device can move vertically as a whole. This allows the laser cutting mechanism 6 installed inside the movable block 5 to move in multiple directions according to actual needs, making it more practical.

[0018] like Figure 1-4 As shown, both ends of the movable block 5 and the movable frame 4 are fixed with stabilizing blocks 10. Both ends of the inner walls of the movable frame 4 and the fixed frame 3 are provided with stabilizing grooves 11 that match the stabilizing blocks 10. By setting the stabilizing blocks 10 and stabilizing grooves 11, they can provide auxiliary support to the movable frame 4 and the movable block 5 respectively, avoiding the risk of damage to the first electric telescopic rod 901 and the second electric telescopic rod 902 when supported alone, thus making the stability stronger.

[0019] like Figure 1-4 As shown, the output end of the third electric telescopic rod 12 is fixed with a first connecting plate 13, and a first motor 14 is installed at one end of the first connecting plate 13. The output end of the first motor 14 is fixed with the support plate 15. Through the operation of the first motor 14, the angle of the plate to be processed held by the clamping plate 17 can be adjusted, which is convenient for subsequent processing.

[0020] like Figure 1-4 As shown, a stabilizing plate 18 is rotatably connected between the support plate 15 and the first connecting plate 13 on the outside of the first motor 14. With the stabilizing plate 18, when the first motor 14 supports the support plate 15 and the clamped plate alone, the stabilizing plate 18 can provide auxiliary support for the support plate 15, so as to avoid damage to the first motor 14.

[0021] like Figure 1-4 As shown, the output end of the fourth electric telescopic rod 19 is fixed with a second connecting plate 20, and the second motor 21 is installed on the end of the second connecting plate 20 facing away from the fourth electric telescopic rod 19. The four corners of the bottom end of the bracket 1 are all fixed with support legs 24. Through the setting of the second connecting plate 20, the second motor 21 has a force point, making its operation more stable.

[0022] The device's operation and working principle are as follows: A high-precision pressure sensor 8 and displacement sensor 7 are integrated into the cutting head of the laser cutting mechanism 6. The pressure sensor 8 monitors the changes in material resistance to the laser head in real time during the cutting process, while the displacement sensor 7 accurately measures the positional changes of the laser head. When the pressure sensor 8 detects resistance exceeding a preset range, the signal is rapidly transmitted to the central controller 2. The system automatically adjusts parameters such as laser output power, spot size, and cutting speed according to a preset algorithm. For example, when cutting harder materials increases resistance, the system automatically increases the laser power while appropriately reducing the cutting speed to ensure the stability of the cutting process and reduce kerf defects. Furthermore, the device uses an independent second motor 21 to drive the two cutting blades 23, abandoning the traditional mechanical gear synchronous transmission method. Through advanced motion control algorithms, the movement trajectories of the upper and lower cutting blades 23 can be precisely coordinated. During the cutting process, the movement of the cutting blades 23 and their rotating shaft is divided into acceleration, synchronization, and deceleration phases. During the acceleration phase, the cutter 23 rapidly accelerates from a standstill to match the speed of the sheet material, ensuring a smooth cut. During the synchronization phase, the horizontal component of the cutter's linear velocity strictly matches the sheet material's speed, effectively guaranteeing the quality of the sheared section and preventing scratches on the sheet surface. The deceleration phase brings the cutter 23 to a smooth stop. Simultaneously, an external encoder 22 is introduced to control the spindle of the second motor 21. Through a carefully designed CAM curve, the speed and position relationship between the spindle of the second motor 21 and the driven shaft of the cutter 23 is precisely defined. This method significantly reduces the impact of speed changes on the mechanical equipment, making the trimming process more stable and efficient, and adaptable to trimming requirements of different sheet thicknesses and materials.

[0023] The wiring diagrams for the controller 2, laser cutting mechanism 6, displacement sensor 7, pressure sensor 8, first electric telescopic rod 901, second electric telescopic rod 902, third electric telescopic rod 12, fourth electric telescopic rod 19, electric push rod 16, first motor 14, second motor 21, and external encoder 22 in this utility model are common knowledge in the field. Their working principles are well-known technologies, and the appropriate models are selected according to actual use. Therefore, the control methods and wiring layouts of the controller 2, laser cutting mechanism 6, displacement sensor 7, pressure sensor 8, first electric telescopic rod 901, second electric telescopic rod 902, third electric telescopic rod 12, fourth electric telescopic rod 19, electric push rod 16, first motor 14, second motor 21, and external encoder 22 will not be explained in detail.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A laser cutting and servo cutting linkage device, comprising a support (1), characterized in that: A controller (2) is installed on the outer wall of the bracket (1). A fixed frame (3) is fixed at the top of the bracket (1). A movable frame (4) is provided inside the fixed frame (3). A movable block (5) is provided inside the movable frame (4). A laser cutting mechanism (6) is installed inside the movable block (5). A displacement sensor (7) and a pressure sensor (8) are installed at the cutting head of the laser cutting mechanism (6). A displacement structure (9) for driving the laser cutting mechanism (6) to move in multiple directions is provided inside the fixed frame (3). A third electric telescopic rod (12) is installed at one end of the bracket (1). The output end of the third electric telescopic rod (12) is provided with a support plate (15). Electric push rods (16) are installed on both sides of one end of the support plate (15). Clamping plates (17) are fixed at the opposite ends of the two electric push rods (16). The two ends of the bracket (1) are provided with fourth electric telescopic rods (19). The output ends of the two fourth electric telescopic rods (19) are provided with second motors (21). The output ends of the two second motors (21) are provided with external encoders (22). The output ends of the two external encoders (22) are provided with cutters (23).

2. The laser cutting and servo cutting linkage device according to claim 1, characterized in that: The displacement structure (9) includes a first electric telescopic rod (901) installed on the inner wall of the fixed frame (3), the output end of the first electric telescopic rod (901) being fixed to the movable frame (4), and a second electric telescopic rod (902) installed on the inner wall of the movable frame (4), the output end of the second electric telescopic rod (902) being fixed to the movable block (5).

3. The laser cutting and servo cutting linkage device according to claim 2, characterized in that: Both ends of the movable block (5) and the movable frame (4) are fixed with stabilizing blocks (10), and both ends of the inner walls of the movable frame (4) and the fixed frame (3) are provided with stabilizing grooves (11) that match the stabilizing blocks (10).

4. The laser cutting and servo cutting linkage device according to claim 1, characterized in that: The output end of the third electric telescopic rod (12) is fixed with a first connecting plate (13), and a first motor (14) is installed at one end of the first connecting plate (13). The output end of the first motor (14) is fixed with the support plate (15).

5. The laser cutting and servo cutting linkage device according to claim 4, characterized in that: A stabilizing plate (18) is rotatably connected between the support plate (15) and the first connecting plate (13) on the outside of the first motor (14).

6. The laser cutting and servo cutting linkage device according to claim 1, characterized in that: The output end of the fourth electric telescopic rod (19) is fixed with a second connecting plate (20), and the second motor (21) is installed on the end of the second connecting plate (20) facing away from the fourth electric telescopic rod (19). The four corners of the bottom end of the bracket (1) are all fixed with support legs (24).

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