Intelligent laser cutting device and technology for automobile sheet metal part machining

Abstract

The invention relates to the technical field of laser cutting, and discloses an intelligent laser cutting device and technology for automobile sheet metal part machining, the intelligent laser cutting device for automobile sheet metal part machining comprises a main body, a transmission mechanism is arranged at the top of the main body, and a laser cutter is arranged at the top of the transmission mechanism; a rack is arranged on one side of the body, a plurality of sword grids are slidably connected to the top of the rack, and a linkage mechanism is arranged at the bottom of the transmission mechanism. When the laser cutter carries out cutting operation in the longitudinal direction, the laser cutter moves to synchronously drive the linkage mechanism below through the transmission mechanism, the linkage mechanism immediately drives the sword grid located under a laser cutting point to move downwards so that the sword grid can be disengaged from the surface of the sheet metal part, and through the linkage mode, the laser beam can cut the automobile sheet metal part at the moment of cutting the automobile sheet metal part. And the sword grid at the corresponding position descends in advance, so that direct contact with the slag in a high-temperature molten state is effectively avoided, and the problem of slag adhesion is fundamentally prevented.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to an intelligent laser cutting device and process for processing automotive sheet metal parts. Background Technology

[0002] Automotive sheet metal parts are core components that make up the car body and frame, including doors, hoods, and fenders. They collectively determine the vehicle's appearance, structural strength, and safety performance. With the automotive industry's increasing demands for lightweight, high-strength, and personalized designs, the manufacturing precision and efficiency of sheet metal parts have become crucial.

[0003] In this production system, intelligent laser cutting equipment has become a key processing tool. This equipment integrates a high-precision laser cutting head, an automated loading and unloading system, and an intelligent CNC center. It can perform high-speed, high-precision contour cutting and hole processing on sheet metal based on digital 3D models. Its advantages are that not only is the cut surface smooth and the deformation small, significantly improving workpiece quality and material utilization, but it can also quickly switch programs to adapt to the flexible production needs of multiple varieties and small batches. At the same time, combined with visual positioning and real-time monitoring technology, the system realizes intelligent control and error compensation of the processing process, effectively ensuring production cycle and product consistency, and providing reliable support for efficient and precise processing in the modern automotive manufacturing industry.

[0004] The automotive sheet metal parts are placed on the cutting table of the laser cutting device. A grating is set on the top of the cutting table to support the automotive sheet metal parts. The laser then cuts the automotive sheet metal parts. When the high-energy laser beam completes the cutting, the high-temperature molten metal produced will inevitably splash and drip onto the surface of the grating and into its gaps. Since the grating is usually in direct contact with the automotive sheet metal parts, the molten metal droplets will cool and solidify rapidly after contact, thus adhering firmly to the grating strips. This adhesion not only affects the flat positioning of the workpiece in the next processing, but also makes cleaning extremely difficult. Summary of the Invention

[0005] Given the difficulty in solving the problem of waste and slag adhering to the laser cutting grid in existing technologies, an intelligent laser cutting device for processing automotive sheet metal parts is proposed.

[0006] One aspect of this application provides an intelligent laser cutting device for processing automotive sheet metal parts, the purpose of which is to prevent waste and slag generated during laser cutting from sticking to the laser cutter.

[0007] The technical solution of the present invention is as follows: an intelligent laser cutting device for processing automotive sheet metal parts, comprising a main body, a transmission mechanism provided on the top of the main body, a laser cutter provided on the top of the transmission mechanism, a frame provided on one side of the main body, a plurality of sword grids slidably connected on the top of the frame, and a linkage mechanism provided at the bottom of the transmission mechanism, the linkage mechanism including a storage component fixedly connected to the bottom of the transmission mechanism. The storage component includes a mounting block fixedly connected to the bottom of the transmission mechanism. A rigid chain is fixedly connected to the bottom of the mounting block, and chain teeth mesh on one side of the rigid chain. The linkage mechanism also includes an output component located at the bottom of the storage component. The output component includes an output rod fixedly connected to the bottom of the chain teeth. A first bevel gear is fixedly connected to the bottom surface of the output rod. A second bevel gear meshes on one side of the first bevel gear. A threaded rod is fixedly connected to one side of the second bevel gear. An output block is threadedly connected to the threaded surface of the threaded rod. A connecting block is fixedly fixed at the bottom of the sword grating corresponding to the position of the output block. A movable sleeve is provided on the outer periphery of the threaded rod. The output block is slidably connected to the movable sleeve. An output arm is fixedly connected to the top of the output block. A mounting ring is fixedly connected to one side of the top of the output arm. An output ring is provided on one side of the mounting ring. A rotating locking block is fixedly connected to one side of the mounting ring corresponding to the output ring. A locking groove is opened on one side of the output ring corresponding to the rotating locking block. The rotating locking block is rotatably connected to the locking groove. A contact is fixedly connected to the bottom of each connecting block, and the output ring rests on the contact. When the main body drives the transmission mechanism to move longitudinally, the transmission mechanism drives the linkage mechanism to move, and the sword gate is driven to descend through the output component at the bottom of the linkage mechanism.

[0008] Furthermore, the storage component includes a mounting sleeve fixedly connected to one side of the frame, a storage box fixedly connected inside the mounting sleeve, one end of the rigid chain being stored in the storage box, a guide rail fixedly connected to one side of the mounting sleeve corresponding to the rigid chain, a groove being provided on the guide rail corresponding to the position of the rigid chain, the rigid chain being slidably connected in the groove, and a mounting bracket fixedly connected to the bottom of the mounting sleeve, the mounting bracket being fixedly connected to the frame.

[0009] Furthermore, the snap-fit ​​groove is shaped like a half-circular pin, and the rotating snap block is shaped like a quarter-circular pin.

[0010] Furthermore, elastic sheets are fixedly connected to the bottom of both sides of the sword grid, and the two ends of the elastic sheets are fixedly connected to the frame. Elastic rods are fixedly connected to both sides of the sword grid corresponding to the elastic sheets, and the two ends of the elastic rods are fixedly connected to the frame.

[0011] Furthermore, the frame has an installation groove at the position corresponding to the sword guard, the sword guard is slidably connected in the installation groove, and multiple clamping workpieces are provided on the top of the frame.

[0012] Furthermore, the top of the contact is arc-shaped, and the two sides are beveled.

[0013] Furthermore, the present invention also provides an intelligent laser cutting process for automotive sheet metal parts processing, employing an intelligent laser cutting device for automotive sheet metal parts processing, including the following steps: Step 1: The robot places the sheet metal part on the sword grid, and the positioning module on the sword grid quickly clamps the workpiece to ensure processing accuracy; Step 2: Retrieve the processing program from the digital process library, automatically set parameters such as laser power and cutting speed, and realize one-click access to laser cutting settings through the program; Step 3: The laser cutter cuts along the path, and the sensor monitors the cutting status in real time to ensure stable cut quality; Step 4: Cutting complete. After cutting, the waste material automatically falls into the collection box, and the robot or unloading mechanism takes out the shaped parts and sorts and places them.

[0014] The beneficial effects of this invention are: When the laser cutter performs a longitudinal cutting operation, its movement is synchronously driven by the transmission mechanism to the linkage mechanism below. The linkage mechanism then drives the sword grid located directly below the laser cutting point to move downward, causing it to disengage from the surface of the sheet metal part. Through this linkage method, the sword grid at the corresponding position has already descended in advance at the moment the laser beam cuts the automotive sheet metal part, thereby effectively avoiding direct contact with the molten slag in a high-temperature molten state and fundamentally preventing the problem of slag adhesion.

[0015] As the blade descends synchronously with the laser cutter's position, a local unobstructed area is formed directly below the processing point, allowing slag and dust generated during the cutting process to fall directly downwards. As the cutting head continues to move, the descending blade forms a continuous and unobstructed longitudinal chip removal channel behind it. Through this channel, waste is efficiently and centrally transported to the collection system along a fixed path. Attached Figure Description

[0016] Figure 1 This is a perspective view of the intelligent laser cutting device for automotive sheet metal processing based on the present invention; Figure 2 This is a schematic diagram of the back of the main body of the invention; Figure 3 This is a cross-sectional view of the frame of the present invention; Figure 4 This is a bottom view schematic diagram of the transmission mechanism of the present invention; Figure 5 This is a schematic diagram of the installation of the storage component of the present invention; Figure 6 This is a schematic diagram of the sword-grid connection structure of the present invention; Figure 7 This is a schematic diagram of the linkage mechanism structure of the present invention; Figure 8This is a schematic diagram of the installation of the storage component of the present invention; Figure 9 This is a schematic diagram of the installation of the output components of the present invention; Figure 10 This is a schematic diagram of the installation ring split structure of the present invention; Figure 11 This is a schematic diagram showing the positions of the output rod and the sword grating of the present invention; Figure 12 This is a schematic diagram of the contact of the present invention; In the picture: 1. Main body; 2. Transmission mechanism; 3. Linkage mechanism; 4. Storage assembly; 401. Mounting block; 402. Rigid chain; 403. Storage box; 404. Guide rail; 405. Slide groove; 406. Chain tooth; 407. Mounting bracket; 408. Mounting sleeve; 5. Output assembly; 501. Output rod; 502. First bevel gear; 503. Second bevel gear; 504. Movable sleeve; 505. Threaded rod; 506. Output block; 507. Output arm; 508. Mounting ring; 509. Rotating locking block; 510. Output ring; 511. Snap-fit ​​groove; 6. Frame; 7. Sword grid; 8. Elastic rod; 9. Elastic sheet; 10. Connecting block; 11. Contact; 12. Laser cutter; 13. Clamping workpiece; 14. Mounting groove. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Example 1, referring to Figures 1-7 The first embodiment of the present invention provides an intelligent laser cutting device for processing automotive sheet metal parts, including a main body 1. A transmission mechanism 2 is provided on the top of the main body 1. The transmission mechanism 2 can drive the laser cutter 12 to move longitudinally and can also synchronously drive the linkage mechanism 3 to work.

[0019] A laser cutter 12 is installed on the top of the transmission mechanism 2, and a frame 6 is installed on one side of the main body 1. Multiple sword grids 7 are slidably connected to the top of the frame 6. A linkage mechanism 3 is installed at the bottom of the transmission mechanism 2. The linkage mechanism 3 includes a storage component 4 fixedly connected to the bottom of the transmission mechanism 2. The sword grids 7 can support the automotive sheet metal parts. At the same time, there is a certain gap between the sword grids 7, which makes it convenient for some cut waste materials to enter the bottom of the laser cutting device for collection through the sword grids 7.

[0020] The storage component 4 includes a mounting block 401 fixedly connected to the bottom of the transmission mechanism 2. A rigid chain 402 is fixedly connected to the bottom of the mounting block 401. One side of the rigid chain 402 is engaged with chain teeth 406. The storage component 4 is connected to the transmission mechanism 2. When the transmission mechanism 2 moves, the power generated by the longitudinal movement of the transmission mechanism 2 can be converted into usable power for the output component 5 to control the descent of the sword grid 7. At the same time, it ensures that the descent of the sword grid 7 is always synchronized with the position of the laser cutting point.

[0021] The linkage mechanism 3 also includes an output component 5 located at the bottom of the storage component 4. The output component 5 includes an output rod 501 fixedly connected to the bottom of the chain teeth 406. A first bevel gear 502 is fixedly connected to the bottom surface of the output rod 501. A second bevel gear 503 meshes with one side of the first bevel gear 502. A threaded rod 505 is fixedly connected to one side of the second bevel gear 503. An output block 506 is threadedly connected to the threaded surface of the threaded rod 505. A connecting block 10 is fixedly located at the bottom of the sword gate 7 corresponding to the position of the output block 506. The motion transmitted from the storage component 4 is converted into a linear descending force of the sword gate 7 through the output component 5, ensuring that the sword gate 7 can descend accurately.

[0022] When the main body 1 drives the transmission mechanism 2 to move longitudinally, the transmission mechanism 2 drives the linkage mechanism 3 to move. The output component 5 at the bottom of the linkage mechanism 3 drives the sword grid 7 to descend. When the laser cutter 12 cuts, the sword grid 7 directly below it can descend synchronously with the output component 5 through the storage component 4, thereby making the sword grid 7 separate from the processing part of the automotive sheet metal parts and effectively avoiding the adhesion of high temperature molten slag.

[0023] Reference Figure 8 The storage component 4 includes a mounting sleeve 408 fixedly connected to one side of the frame 6. A storage box 403 is fixedly connected inside the mounting sleeve 408. One end of the rigid chain 402 is stored in the storage box 403. With the storage box 403, when the mounting block 401 drives the rigid chain 402 to move towards the storage box 403, the other end of the rigid chain 402 will be stored in the storage box 403. This prevents the other end of the rigid chain 402 from getting tangled when stored, which would cause the mounting block 401 to drive the rigid chain 402 to move in the opposite direction towards the storage box 403 and get stuck.

[0024] A guide rail 404 is fixedly connected to one side of the mounting sleeve 408 corresponding to the rigid chain 402. A groove 405 is provided on the guide rail 404 corresponding to the position of the rigid chain 402. Through the setting of the guide rail 404 and the groove 405, when the rigid chain 402 moves, the guide rail 404 and the groove 405 can ensure that the rigid chain 402 always maintains a straight movement. At the same time, the rigidity of the rigid chain 402 is utilized to prevent deviation when the rigid chain 402 moves towards the storage box 403.

[0025] The rigid chain 402 is slidably connected in the slide groove 405. The bottom of the mounting sleeve 408 is fixedly connected to the mounting bracket 407, which is fixedly connected to the frame 6. The mounting bracket 407 facilitates the internal installation of the structure.

[0026] Reference Figure 9 The output component 5 includes a movable sleeve 504 fixedly connected to one side of the bottom of the mounting bracket 407 and disposed on the outer periphery of the threaded rod 505. The threaded rod 505 is rotatably connected to the movable sleeve 504. The output block 506 is slidably connected to the movable sleeve 504. An output arm 507 is fixedly connected to the top of the output block 506. Through the meshing between the first bevel gear 502 and the second bevel gear 503, the vertical rotational force can be converted into a horizontal force, which drives the threaded rod 505 to rotate, thereby driving the output block 506 to move, so that the output block 506 and the output ring 510 drive the sword grid 7 to descend.

[0027] Reference Figure 10 An installation ring 508 is fixedly connected to one side of the top of the output arm 507. An output ring 510 is provided on one side of the installation ring 508. A rotating block 509 is fixedly connected to the side of the installation ring 508 corresponding to the side of the output ring 510. A snap-fit ​​groove 511 is provided on the side of the output ring 510 corresponding to the side of the rotating block 509. The rotating block 509 is rotatably connected in the snap-fit ​​groove 511. The output ring 510 has an inclined elliptical design. The elliptical inclined arc surface contacts the contact 11. The inclined ellipse is used to squeeze the contact 11, so that the contact 11, the connecting block 10 and the sword grid 7 can descend.

[0028] Reference Figure 10 The locking groove 511 is shaped like a half-circular pin, and the rotating locking block 509 is shaped like a quarter-circular pin. Because the output ring 510 moves back and forth, when the output ring 510 moves in the opposite direction, the friction between the output ring 510 and the contact 11 is used to make the output ring 510 rotate 90 degrees, ensuring that the arc surface of the output ring 510 is always tilted along the direction of movement.

[0029] Reference Figure 11 Elastic plates 9 are fixedly connected to the bottom of both sides of the sword grid 7. The two ends of the elastic plates 9 are fixedly connected to the frame 6. Elastic rods 8 are fixedly connected to both sides of the sword grid 7 corresponding to the elastic plates 9. The two ends of the elastic rods 8 are fixedly connected to the frame 6. Both the elastic plates 9 and the elastic rods 8 are made of elastic metal. When one of the sword grids 7 descends, the elastic plates 9 and the elastic rods 8 simultaneously drive the sword grids 7 on both sides to descend, forming a certain arc surface, thereby avoiding direct contact with the molten slag. At the same time, when the sword grid 7 finishes descending, the elastic force of the elastic plates 9 and the elastic rods 8 drives the sword grid 7 to reset.

[0030] Reference Figure 6 The frame 6 has a mounting groove 14 at the position corresponding to the sword grating 7. The sword grating 7 is slidably connected in the mounting groove 14. The top of the frame 6 is provided with multiple clamping workpieces 13. When the sword grating 7 is lowered, the two sides of the sword grating 7 slide in the mounting groove 14. The mounting groove 14 ensures that the sword grating 7 is always in a straight line when it is lowered.

[0031] Reference Figure 12 The bottom of the connecting block 10 is fixedly connected to the contact 11 at the position corresponding to the output ring 510. The top of the contact 11 is arc-shaped and the two sides are beveled. When the output ring 510 contacts the contact 11, the two beveled sides are for better contact with the arc surface of the output ring 510, so that the output ring 510 can press down the contact 11 and prevent the output ring 510 from getting stuck.

[0032] The working principle of this invention is as follows: First, the automotive sheet metal part is placed on the surface of the grating 7 and firmly fixed by clamping the workpiece 13. Then, the laser cutter 12 is started to perform cutting operations according to a preset trajectory. When the laser cutter 12 moves longitudinally, the transmission mechanism 2 synchronously drives the mounting block 401 to move. The mounting block 401 drives the chain teeth 406 meshing with it to rotate, thereby driving the output rod 501 to rotate. The rotational motion of the output rod 501 is transmitted through the meshing of the first bevel gear 502 and the second bevel gear 503, changing the vertical rotational force into a horizontal rotational force, driving the threaded rod 505 to rotate. The rotating drive moves the output block 506, output arm 507, mounting ring 508, and output ring 510 as a whole. During the movement, the inclined elliptical arc surface on the output ring 510 contacts the contact 11 and squeezes it, causing the contact 11 to drive the connecting block 10 and the corresponding sword grid 7 to descend. During the descent of the sword grid 7, the linkage between the elastic sheet 9 and the elastic rod 8 drives the adjacent sword grid 7 to descend in tandem, forming an arc-shaped descent area adapted to the cutting path. By making the sword grid 7 descend synchronously with the laser cutting position, direct contact between the sword grid 7 and the high-temperature molten slag is effectively avoided, fundamentally preventing the problem of slag adhesion.

[0033] Example 2, a second embodiment of the present invention, provides: an intelligent laser cutting process for processing automotive sheet metal parts, employing an intelligent laser cutting device for processing automotive sheet metal parts, including the following steps: Step 1: The robot places the sheet metal part on the sword grid 7, and the positioning module on the sword grid 7 quickly clamps the workpiece 13 to ensure processing accuracy; Step 2: Retrieve the processing program from the digital process library, automatically set parameters such as laser power and cutting speed, and realize one-click access to laser cutting settings through the program; Step 3: The laser cutter 12 cuts along the path, and the sensor monitors the cutting status in real time to ensure stable cut quality; Step 4: Cutting complete. After cutting, the waste material automatically falls into the collection box, and the robot or unloading mechanism takes out the shaped parts and sorts and places them.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An intelligent laser cutting device for processing automotive sheet metal parts, comprising a main body (1), characterized in that: The main body (1) is provided with a transmission mechanism (2) at the top, a laser cutter (12) is provided at the top of the transmission mechanism (2), a frame (6) is provided on one side of the main body (1), a plurality of sword grids (7) are slidably connected to the top of the frame (6), and a linkage mechanism (3) is provided at the bottom of the transmission mechanism (2). The linkage mechanism (3) includes a storage component (4) fixedly connected to the bottom of the transmission mechanism (2). The storage component (4) includes a mounting block (401) fixedly connected to the bottom of the transmission mechanism (2). A rigid chain (402) is fixedly connected to the bottom of the mounting block (401). A chain tooth (406) meshes with one side of the rigid chain (402). The linkage mechanism (3) also includes an output component (5) located at the bottom of the storage component (4). The output component (5) includes an output rod (501) fixedly connected to the bottom of the chain tooth (406). A first bevel gear (502) is fixedly connected to the bottom surface of the output rod (501). A second bevel gear (503) meshes with one side of the first bevel gear (502). A threaded rod (505) is fixedly connected to one side of the second bevel gear (503). An output block (506) is threadedly connected to the threaded surface of the threaded rod (505). The bottom of the sword guard (7) corresponds to the output block (506). A connecting block (10) is fixed at the position of the threaded rod (505), and a movable sleeve (504) is provided on the outer periphery of the threaded rod (505). The output block (506) is slidably connected in the movable sleeve (504). An output arm (507) is fixedly connected to the top of the output block (506). An installation ring (508) is fixedly connected to one side of the top of the output arm (507). An output ring (510) is provided on one side of the installation ring (508). A rotating block (509) is fixedly connected to one side of the installation ring (508) corresponding to the output ring (510). A snap-fit ​​groove (511) is opened on one side of the output ring (510) corresponding to the rotating block (509). The rotating block (509) is rotatably connected in the snap-fit ​​groove (511). A contact (11) is fixedly connected to the bottom of each connecting block (10). The output ring (510) is mounted on the contact (11). When the main body (1) drives the transmission mechanism (2) to move longitudinally, the transmission mechanism (2) drives the linkage mechanism (3) to move, and the bottom output component (5) of the linkage mechanism (3) drives the sword gate (7) to descend.

2. The intelligent laser cutting device for processing automotive sheet metal parts according to claim 1, characterized in that: The storage component (4) includes a mounting sleeve (408) fixedly connected to one side of the frame (6). A storage box (403) is fixedly connected inside the mounting sleeve (408). One end of the rigid chain (402) is stored in the storage box (403). A guide rail (404) is fixedly connected to one side of the mounting sleeve (408) corresponding to the rigid chain (402). A groove (405) is provided on the guide rail (404) corresponding to the position of the rigid chain (402). The rigid chain (402) is slidably connected in the groove (405). A mounting bracket (407) is fixedly connected to the bottom of the mounting sleeve (408). The mounting bracket (407) is fixedly connected to the frame (6).

3. The intelligent laser cutting device for processing automotive sheet metal parts according to claim 1, characterized in that: The snap-fit ​​groove (511) is shaped like a half-circular pin, and the rotating snap block (509) is shaped like a quarter-circular pin.

4. The intelligent laser cutting device for processing automotive sheet metal parts according to claim 1, characterized in that: The bottom sides of the sword grid (7) are respectively fixedly connected to elastic plates (9), and the two ends of the elastic plates (9) are fixedly connected to the frame (6). The two sides of the sword grid (7) corresponding to the elastic plates (9) are respectively fixedly connected to elastic rods (8), and the two ends of the elastic rods (8) are fixedly connected to the frame (6).

5. The intelligent laser cutting device for processing automotive sheet metal parts according to claim 1, characterized in that: The frame (6) has an installation groove (14) at the position corresponding to the sword grid (7), the sword grid (7) is slidably connected in the installation groove (14), and multiple clamping workpieces (13) are provided on the top of the frame (6).

6. The intelligent laser cutting device for processing automotive sheet metal parts according to claim 1, characterized in that: The top of the contact (11) is arc-shaped, and the two sides are designed with bevels.

7. An intelligent laser cutting process for processing automotive sheet metal parts, employing the intelligent laser cutting device for processing automotive sheet metal parts as described in claim 5, characterized in that, Includes the following steps: Step 1: The robot places the sheet metal part on the sword grid (7), and the positioning module on the sword grid (7) quickly clamps the workpiece (13) to ensure accurate processing; Step 2: Retrieve the processing program from the digital process library, automatically set parameters such as laser power and cutting speed, and realize one-click access to laser cutting settings through the program; Step 3: The laser cutter (12) cuts along the path, and the sensor monitors the cutting status in real time to ensure stable cut quality; Step 4: Cutting complete. After cutting, the waste material automatically falls into the collection box, and the robot or unloading mechanism takes out the shaped parts and sorts and places them.

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