Accurate positioning device for laser cutting

Abstract

The utility model discloses an accurate positioning device for laser cutting, which relates to the field of laser processing equipment and comprises a base, adjusting frames are symmetrically mounted on the top of the base, a second lead screw is mounted in the adjusting frame on one side, an adjusting frame is in threaded connection with the second lead screw, and the output end of a second driving motor is fixedly connected with the second lead screw. A first lead screw is installed on the adjusting frame, a mounting base is in threaded connection with the first lead screw, a laser cutting head is fixedly connected to the mounting base, the output end of the first driving motor is fixedly connected with the first lead screw, and a vacuum adsorption platform used for containing plates is fixedly connected to the middle of the base. A plate is firmly adsorbed through the vacuum adsorption platform, even if the plate is slightly warped, the plate can be adsorbed to be flat, so that the cutting precision is guaranteed, the plate is adsorbed through the vacuum adsorption platform, the plate can be tightly attached to the table top of the vacuum adsorption platform, chippings cannot enter the bottom of a workpiece, the flatness of the workpiece is guaranteed, and the production efficiency is improved. And the cutting precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment, and more specifically, to a device for precise positioning in laser cutting. Background Technology

[0002] In modern industrial production, laser cutting is widely used in metal processing, sheet metal cutting, precision parts manufacturing and other fields due to its advantages such as high cutting precision, high efficiency and small heat-affected zone. As industrial products develop towards higher precision and complexity, the requirements for positioning accuracy of laser cutting are becoming increasingly stringent. Positioning errors directly affect the dimensional accuracy and assembly quality of products. Especially in high-end manufacturing fields such as aerospace, electronic equipment and precision machinery, even small positioning deviations can lead to product scrapping and cause serious economic losses.

[0003] Existing laser cutting positioning devices typically clamp the sheet metal for positioning once it has moved to the cutting position. This often has the following drawbacks: First, the sheet metal usually has slight warping, causing the actual cutting point to deviate from the preset vertical path of the laser head, resulting in decreased cutting accuracy. Second, laser cutting generates a lot of debris; if this debris accumulates on the bottom surface of the sheet metal, it will cause unevenness, further affecting cutting accuracy. Third, the positioning adjustment method of the laser cutting head is relatively simple, mostly only allowing for movement adjustment in a single direction, making it difficult to meet the multi-dimensional, high-precision positioning requirements of complex workpieces, and resulting in poor adjustment flexibility. Fourth, some devices use manual positioning adjustment, which is not only cumbersome and time-consuming, but also susceptible to subjective factors, making it difficult to guarantee consistent positioning accuracy and failing to meet the requirements of large-scale, automated production.

[0004] To address the aforementioned issues, a device for precise positioning in laser cutting is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, a device for precise positioning in laser cutting is provided.

[0006] To achieve the above objectives, the present invention can be implemented using the following technical solutions:

[0007] This utility model provides a device for precise positioning in laser cutting, comprising: a base, two adjusting frames symmetrically fixedly mounted on the top of the base, a second lead screw rotatably mounted on one adjusting frame, and a positioning rod fixedly mounted on the other adjusting frame, an adjusting bracket threadedly connected to the second lead screw, the side of the adjusting bracket away from the second lead screw slidably connected to the positioning rod, a second drive motor fixedly mounted on the outer wall of the adjusting frame closer to the second lead screw, the output end of the second drive motor fixedly connected to the second lead screw, a first lead screw mounted on the adjusting frame, symmetrically provided sliding grooves on both sides of the adjusting frame, a mounting seat threadedly connected to the first lead screw, a laser cutting head fixedly connected to the mounting seat, the mounting seat slidably connected to the sliding groove, a first drive motor fixedly mounted on one side of the adjusting frame, the output end of the first drive motor fixedly connected to one end of the first lead screw, and a vacuum adsorption platform for placing the plate fixedly connected in the middle of the base.

[0008] Preferably, a mounting plate is installed on one side of the laser cutting head, and a distance measuring sensor is installed on the mounting plate.

[0009] Preferably, the vacuum adsorption platform is rectangular, and multiple uniformly arranged vacuum adsorption ports are provided on the vacuum adsorption platform.

[0010] Preferably, the base is equipped with adjustable feet on all four sides of its bottom.

[0011] Preferably, an operation panel is fixedly mounted on the outer surface of the adjustment frame.

[0012] As described above, the beneficial effects of the device for precise positioning in laser cutting according to this utility model are:

[0013] This invention uses a vacuum adsorption platform to firmly adsorb and position the sheet material. Even if the sheet material is slightly warped, it can be adsorbed and flattened, thus ensuring cutting accuracy. Moreover, by adsorbing the sheet material by the vacuum adsorption platform, the sheet material can be tightly attached to the platform surface, preventing debris from entering the bottom of the workpiece, thereby ensuring the flatness of the workpiece and thus ensuring cutting accuracy. Furthermore, with the assistance of a distance measuring sensor, it can further prevent low cutting accuracy caused by sheet material warping.

[0014] This invention achieves bidirectional horizontal movement adjustment of the laser cutting head through the coordinated operation of dual drive motors and dual lead screws. Drive motor two rotates lead screw two, which drives the adjustment frame to slide smoothly along the positioning rod, achieving lateral positioning in the cutting direction. Drive motor one rotates lead screw one, which drives the laser cutting head to slide precisely along the slide groove on the adjustment frame, completing longitudinal positioning. The bidirectional adjustment structure is reasonably designed, with smooth transmission and high precision, effectively solving the problems of single positioning dimension and insufficient precision in existing devices, and can meet the high-precision cutting and positioning requirements of complex workpieces.

[0015] The device uses a motor drive to replace the traditional manual adjustment, thereby achieving automated positioning of the laser cutting head. This not only significantly reduces the intensity of manual operation and avoids positioning errors caused by human factors, but also significantly improves positioning efficiency, making it suitable for large-scale and automated production scenarios and effectively increasing overall processing capacity. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model from a first perspective;

[0017] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from a second perspective;

[0018] Figure 3 This is a structural schematic diagram of the lead screw, positioning rod, and other components of this utility model.

[0019] The reference numerals in the accompanying drawings of this utility model are as follows: 1. Base; 2. Vacuum adsorption platform; 3. Adjustment frame; 4. Drive motor one; 5. Lead screw one; 6. Mounting plate; 7. Laser cutting head; 8. Slide groove; 9. Adjustment foot; 10. Drive motor two; 11. Operation panel; 12. Adjustment frame; 13. Lead screw two; 14. Positioning rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] See Figures 1-3 The apparatus for precise positioning in laser cutting, as shown in this embodiment, will be described in detail below:

[0022] A device for precise positioning in laser cutting, such as Figures 1-3 As shown, the system includes: a base 1, with two symmetrically fixedly mounted adjusting frames 3 on the top of the base 1. A lead screw 13 is rotatably mounted inside one adjusting frame 3, and a positioning rod 14 is fixedly mounted inside the other adjusting frame 3. An adjusting bracket 12 is threadedly connected to the outer circumference of the lead screw 13. The side of the adjusting bracket 12 away from the lead screw 13 is slidably connected to the outer circumference of the positioning rod 14. Slots are provided on opposite sides of the adjusting frames 3, through which the adjusting bracket 12 extends into the adjusting frame 3 and connects to the lead screw 13 and the positioning rod 14. A drive motor 10 is fixedly mounted on the outer wall of the adjusting frame 3 near the lead screw 13, and the output end of the drive motor 10 is fixedly connected to the lead screw 13.

[0023] A lead screw 5 is rotatably mounted on the adjusting frame 12. Slide grooves 8 are symmetrically formed on both sides of the adjusting frame 12, with the length direction of the slide grooves 8 parallel to the length direction of the lead screw 5. A mounting base is threaded onto the outer circumference of the lead screw 5, and a laser cutting head 7 is fixedly connected to the mounting base. The mounting base is slidably connected to the slide grooves 8. A drive motor 4 is fixedly mounted on one side of the adjusting frame 12, and the output end of the drive motor 4 is fixedly connected to one end of the lead screw 5.

[0024] A vacuum adsorption platform 2 is fixedly connected to the middle of the base 1. The vacuum adsorption platform 2 is rectangular and has multiple evenly arranged vacuum adsorption ports. The vacuum adsorption platform 2 is used to place the board to be cut and to position the board.

[0025] The workpiece to be cut is placed on the vacuum adsorption platform 2 at the top center of the base 1. The vacuum adsorption platform 2 is a flat table surface. It firmly adsorbs the workpiece through negative pressure, and even if the workpiece is slightly warped, it can be adsorbed flat, thus ensuring cutting accuracy. Moreover, by adsorbing the workpiece by the vacuum adsorption platform 2, the workpiece can be tightly attached to the table surface of the vacuum adsorption platform 2, firmly positioning the workpiece and ensuring that the workpiece remains in a stable position throughout the cutting process, preventing debris from entering the bottom of the workpiece, thus ensuring the flatness of the workpiece and thus ensuring cutting accuracy. After the workpiece is positioned, the output end of the drive motor 10 drives the lead screw 13 to rotate. Since the adjusting frame 12 is connected to the outer circumference of the lead screw 13, and the side of the adjusting frame 12 away from the lead screw 13 is slidably engaged with the positioning rod 14, the rotation of the lead screw 13 will be converted into the smooth linear movement of the adjusting frame 12 along the positioning rod 14, thereby driving the lead screw 5 on the adjusting frame 12 and the laser cutting head 7 to complete the lateral position adjustment, realizing the lateral positioning of the laser cutting head 7. After the lateral positioning is completed, drive motor 4 is started. The output end of drive motor 4 drives the lead screw 5 on the adjustment frame 12 to rotate. The laser cutting head 7 is threadedly connected to the outer circumference of the lead screw 5 and slidably connected to the sliding grooves 8 opened on both sides of the adjustment frame 12. The rotation of the lead screw 5 will drive the laser cutting head 7 to move smoothly in a longitudinal straight line along the sliding groove 8, accurately adjusting the position of the laser cutting head 7 in the longitudinal direction until it reaches the preset cutting start position.

[0026] Furthermore, adjustable feet 9 are installed around the bottom of the base 1. Before starting the device, the height of each adjustable foot 9 is adjusted according to the actual flatness of the working surface to ensure that the base 1 and all installed components are in a horizontal state, thus avoiding deviations in subsequent positioning and cutting accuracy due to device tilt, and laying the foundation for accurate positioning.

[0027] An operation panel 11 is fixedly installed on the outer surface of the adjustment frame 3 on one side. The device can be started and stopped through the operation panel 11.

[0028] A mounting plate 6 is provided on one side of the laser cutting head 7, and a distance sensor is installed on the mounting plate 6. The distance sensor detects the height of the material in real time. If the vacuum adsorption platform 2 fails or the adsorption of the material is not in place, causing the material to warp, or if there are abnormal protrusions on the material, the distance sensor will detect the abnormal height of the material, send a "stop" signal to the device, and display a prompt on the operation panel 11. The device will then immediately stop the cutting operation.

[0029] The working principle of this embodiment is as follows:

[0030] Before starting the device, adjust the height of each adjusting foot 9 according to the actual flatness of the working surface to ensure that the base 1 and all installed components are in a horizontal state. This avoids deviations in subsequent positioning and cutting accuracy due to device tilt, laying the foundation for precise positioning. Then, place the workpiece to be cut on the vacuum adsorption platform 2 on the base 1 and start the vacuum adsorption platform 2. The vacuum adsorption platform 2 firmly adsorbs the workpiece. Then, start the drive motor 10. The output end of the drive motor 10 drives the lead screw 13 to rotate. Since the adjusting frame 12 is connected to the outer circumference of the lead screw 13, and the side of the adjusting frame 12 away from the lead screw 13 slides with the positioning rod 14, the rotation of the lead screw 13 will be converted into a smooth linear movement of the adjusting frame 12 along the positioning rod 14. This will drive the lead screw 5 on the adjusting frame 12 and the laser cutting head 7 to complete the lateral position adjustment, realizing the lateral positioning of the cutting area. After the lateral positioning is completed, drive motor 4 is started. The output end of drive motor 4 drives the lead screw 5 on the adjustment frame 12 to rotate. The laser cutting head 7 is connected to the outer circumference of the lead screw 5 and is slidably connected to the sliding grooves 8 opened on both sides of the adjustment frame 12. The rotation of the lead screw 5 will drive the laser cutting head 7 to move smoothly in a longitudinal straight line along the sliding groove 8, accurately adjusting the position of the laser cutting head 7 in the longitudinal direction until it reaches the preset cutting start position.

[0031] Once the laser cutting head 7 reaches the target positioning position through horizontal and vertical adjustments, the distance sensor detects the height of the plate in real time. If an abnormal height of the plate is detected, a "stop" signal is sent to the device, and the device immediately stops the cutting operation and displays a prompt on the operation panel 11. If the height of the plate is normal, the laser cutting head 7 starts and performs the cutting operation according to the preset program. Throughout the cutting process, the cooperation structure between the adjustment frame 12, the lead screw 13, and the positioning rod 14, as well as the cooperation structure between the laser cutting head 7, the lead screw 5, and the slide 8, will continuously ensure the accuracy of the laser cutting head 7's movement trajectory, ultimately completing a high-precision laser cutting operation.

[0032] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for precise positioning in laser cutting, characterized in that, include: The base (1) has two symmetrically fixed adjustment frames (3) on its top. A second lead screw (13) is rotatably mounted on one adjustment frame (3), and a positioning rod (14) is fixedly mounted on the other adjustment frame (3). An adjustment bracket (12) is threaded onto the second lead screw (13). The side of the adjustment bracket (12) away from the second lead screw (13) is slidably connected to the positioning rod (14). A second drive motor (10) is fixedly mounted on the outer wall of the adjustment frame (3) on the side closer to the second lead screw (13). The output end of the second drive motor (10) The adjustment frame (12) is fixedly connected to the lead screw (2) (13), and the lead screw (5) is installed on the adjustment frame (12). The adjustment frame (12) is symmetrically provided with sliding grooves (8) on both sides. The lead screw (5) is threadedly connected to the mounting seat, and the laser cutting head (7) is fixedly connected to the mounting seat. The mounting seat is slidably connected to the sliding groove (8). The drive motor (4) is fixedly installed on one side of the adjustment frame (12). The output end of the drive motor (4) is fixedly connected to one end of the lead screw (5). The base (1) is fixedly connected to the middle of the base (1) with a vacuum adsorption platform (2) for placing the plate.

2. The device for precise positioning in laser cutting according to claim 1, characterized in that, A mounting plate (6) is installed on one side of the laser cutting head (7), and a distance measuring sensor is installed on the mounting plate (6).

3. The device for precise positioning in laser cutting according to claim 1, characterized in that, The vacuum adsorption platform (2) is rectangular, and multiple uniformly arranged vacuum adsorption ports are provided on the vacuum adsorption platform (2).

4. The device for precise positioning in laser cutting according to claim 1, characterized in that, Adjustable feet (9) are installed around the bottom of the base (1).

5. The device for precise positioning in laser cutting according to claim 1, characterized in that, An operation panel (11) is fixedly installed on the outer surface of the adjustment frame (3).

Images