An automated laser cutting device

Abstract

The utility model discloses an automatic laser cutting device belongs to laser processing equipment technical field, the device includes the placement platform, cutting mechanism and moving mechanism. Cutting mechanism includes laser nozzle, and the periphery of laser nozzle is surrounded with the cleaning brush and is covered with the gas resistance cover, and the air suction machine is communicated with the gas resistance cover through the air suction pipe. The rubber block is arranged on the moving mechanism and is used for absorbing the motion impact. The moving mechanism includes the first reciprocating screw rod of driving cutting mechanism forward and backward movement, the first slide rail of supporting its left and right movement and the second reciprocating screw rod of driving laser nozzle up and down movement, and constitutes three -dimensional motion platform. The utility model discloses through setting rubber block has promoted the cutting accuracy, through the cleaning brush and fume extraction system, has realized the automatic cleaning and fume purification, has improved the working environment and has guaranteed personnel health, and the structure is ingenious, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to an automated laser cutting device. Background Technology

[0002] Automated laser cutting equipment, with its advantages of high cutting speed, high precision, and high flexibility, has been widely used in many industrial production fields such as metal sheet processing, advertising production, and model making. It uses a high-energy-density laser beam to locally irradiate the workpiece, causing the irradiated material to melt, vaporize, or reach its ignition point rapidly. At the same time, a high-speed airflow coaxial with the laser beam blows away the molten material, thereby achieving the cutting of the workpiece.

[0003] As modern manufacturing demands ever higher production efficiency, automated laser cutting equipment is operating at increasingly faster speeds. To complete complex contour cuts at high speeds, the equipment's moving mechanism needs to frequently and rapidly start, stop, and change direction. This highly dynamic movement inevitably generates severe mechanical shocks and vibrations.

[0004] This vibration is transmitted along the mechanical structure of the equipment to the cutting mechanism at the end, directly causing minute vibrations in the laser nozzle. In processing applications with extremely high precision requirements, even minute vibrations can cause the actual cutting trajectory to deviate from the preset path, severely affecting the smoothness of the cutting edge and the dimensional accuracy of the final product, thereby reducing the product yield.

[0005] Meanwhile, the instantaneous application of high-temperature laser light to materials generates a large amount of dust, debris, and harmful fumes. These byproducts of the cutting process contaminate the surface of the cutting table, and if not cleaned promptly, may lead to uneven placement of subsequent materials, causing errors in the cutting focus. Furthermore, the diffused fumes not only contaminate the optical lenses of the equipment, affecting the stable transmission of laser energy, but also pose a potential threat to the health of operators, failing to meet the requirements of modern green manufacturing. While some existing equipment incorporates dust removal and vibration reduction measures, these solutions are often simplistic and struggle to simultaneously address the interrelated issues of mechanical vibration and cutting contamination under high-speed operating conditions. This has become a technical bottleneck restricting further improvements in the performance of automated laser cutting.

[0006] Therefore, this utility model proposes an automated laser cutting device to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides an automated laser cutting device, which aims to improve the problems of decreased cutting accuracy due to mechanical vibration during high-speed operation and the pollution of the worktable and harm to the health of operators caused by debris and smoke generated during the cutting process in existing automated laser cutting devices.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an automated laser cutting device, comprising: a placement table, a cutting mechanism including a laser nozzle, and a moving mechanism for driving the cutting mechanism to move; the automated laser cutting device also includes a cleaning brush, an air barrier, a fan, an air suction pipe, and a rubber block.

[0009] A cleaning brush is positioned around the laser nozzle, and an air baffle is positioned around the laser nozzle.

[0010] The exhaust fan is combined with the air intake pipe and the air baffle, while the rubber block is set on the moving mechanism to absorb the impact force generated by the moving mechanism during movement.

[0011] Preferably, the moving mechanism includes a first reciprocating screw, a first slide rail, a mounting post, and a sleeve; the mounting post is threaded to the first reciprocating screw, the sleeve is slidably connected to the first slide rail and fixedly connected to the mounting post, and the cutting mechanism is mounted on the sleeve.

[0012] Preferably, the moving mechanism further includes a second reciprocating screw, which is installed inside the housing and used to drive the laser nozzle to move up and down.

[0013] Preferably, the device further includes a sleeve that is fitted over the outside of the second reciprocating screw to protect the second reciprocating screw.

[0014] Preferably, the moving mechanism further includes a second slide rail, with rubber blocks respectively disposed at both ends of the first slide rail and below the second slide rail.

[0015] Preferably, the device further includes a filter box, and the outlet of the exhaust fan is connected to the filter box for filtering the drawn-in gas.

[0016] Preferably, the device further includes a motor, the output shaft of which is connected to a first reciprocating lead screw to provide power to the moving mechanism.

[0017] Preferably, the device also includes a base plate and a waste box. The placement platform, the moving mechanism, and the cutting mechanism are all mounted on the base plate, and the waste box is located below the placement platform for collecting cutting waste.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by first setting a rubber block for buffering and vibration reduction on the moving mechanism, the problem of unstable cutting head caused by mechanical impact and vibration during high-speed movement of existing laser cutting devices is solved, which affects the processing accuracy. This achieves the technical effect of significantly improving the smoothness of equipment operation and the stability of laser nozzle posture, thereby effectively ensuring cutting quality and accuracy.

[0019] 2. In this utility model, by setting a cleaning brush around the laser nozzle that moves synchronously with it, the problem of manual cleaning of the table surface before cutting or the cutting deviation caused by uneven material placement due to residual debris on the table surface is solved. This achieves the technical effect of automated pre-cleaning and keeping the placement table clean at all times, thereby improving the accuracy of processing. Attached Figure Description

[0020] Figure 1 This is a perspective view of an automated laser cutting device proposed in this utility model; Figure 2 This is a schematic diagram of the placement stage structure of an automated laser cutting device proposed in this utility model; Figure 3 This is a schematic diagram of the mounting column structure of an automated laser cutting device proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the cleaning brush structure of an automated laser cutting device proposed in this utility model.

[0021] Legend: 1. Base plate; 2. Motor; 3. Moving mechanism; 301. First reciprocating screw; 302. First slide rail; 303. Rubber block; 304. Mounting column; 305. Sleeve box; 306. Second slide rail; 307. Second reciprocating screw; 4. Cutting mechanism; 401. Air baffle; 402. Cleaning brush; 403. Exhaust fan; 404. Suction pipe; 405. Laser nozzle; 406. Sleeve; 407. Filter box; 5. Waste box; 6. Placement platform. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-5The present invention provides an embodiment of an automated laser cutting device, which aims to solve the problems of decreased cutting accuracy caused by high-speed vibration in existing automated laser cutting devices, as well as secondary pollution and safety hazards caused by untimely handling of cutting debris and fumes.

[0024] The automated laser cutting device includes a base plate 1, a placement platform 6, a moving mechanism 3, and a cutting mechanism 4 mounted on the base plate 1. The base plate 1 provides the mounting foundation for the entire device. A waste box 5 is located below the placement platform 6 to collect waste. The moving mechanism 3 is used to drive the cutting mechanism 4 to move in three dimensions above the placement platform 6. The cutting mechanism 4 is used to perform laser cutting on the material on the placement platform 6. Specifically, the cutting mechanism 4 includes a laser nozzle 405 for emitting laser light. A cleaning brush 402 is arranged around the laser nozzle 405. This cleaning brush 402 cleans the surface of the placement table 6 before the cutting operation begins, as the cutting mechanism 4 moves, thereby removing debris and ensuring the flatness of the material placement. Simultaneously, a gas shield 401 is installed around the laser nozzle 405 to collect smoke and dust generated during the cutting process. An exhaust fan 403 is connected to the gas shield 401 via a suction pipe 404. During operation, suction is generated, which draws away the smoke collected by the air baffle 401 through the suction pipe 404. In order to purify the gas, the filter box 407 is connected to the air outlet of the exhaust fan 403. The gas that is drawn away is discharged after being filtered by the filter box 407. In addition, in order to improve the stability of the device under high-speed operation, rubber blocks 303 are set at key positions of the moving mechanism 3. The rubber blocks 303 can effectively absorb and buffer the impact force generated by the moving mechanism 3 when starting, stopping and changing direction, significantly reducing vibration, thereby ensuring the cutting accuracy of the laser nozzle 405.

[0025] The moving mechanism 3 includes a first reciprocating screw 301 for forward and backward movement, a first slide rail 302 for left and right movement, and a mounting post 304 and a sleeve 305 connecting the two. Specifically, the output shaft of a motor 2 is connected to the first reciprocating screw 301 for driving the first reciprocating screw 301 to rotate in both directions. The mounting post 304 is threaded into the first reciprocating screw 301, so when the first reciprocating screw 301 rotates, the mounting post 304 will reciprocate linearly along the axial direction of the first reciprocating screw 301, i.e., move forward and backward. The sleeve 305 is fixedly connected to... Mounting column 304, and sleeve 305 is slidably connected to first slide rail 302. The layout direction of first slide rail 302 is perpendicular to the axis of first reciprocating screw 301. Cutting mechanism 4 is mounted on sleeve 305. With this structural combination, when motor 2 drives first reciprocating screw 301 to rotate, the mounting column 304 drives sleeve 305 to achieve translation in the front-back direction, while sleeve 305 itself can slide in the left-right direction on first slide rail 302, thereby driving the entire cutting mechanism 4 to perform precise two-dimensional positioning and movement in the horizontal plane above the placement table 6.

[0026] In order to realize the vertical movement adjustment of the cutting mechanism 4, the moving mechanism 3 also includes a second reciprocating lead screw 307. The second reciprocating lead screw 307 is installed inside the housing 305 and is connected to the laser nozzle 405. By driving the rotation of the second reciprocating lead screw 307, the laser nozzle 405 can be precisely controlled to move up and down to adapt to the cutting of materials of different thicknesses or to achieve the needs of three-dimensional cutting.

[0027] In order to protect the second reciprocating screw 307 from dust and debris and ensure its transmission accuracy and service life, the sleeve 406 is fitted on the outside of the second reciprocating screw 307 to form an effective closed protection for the second reciprocating screw 307.

[0028] The moving mechanism 3 also includes a second slide rail 306, which is used to assist and stabilize the movement of the cutting mechanism 4. In order to achieve an all-round vibration reduction effect, the rubber block 303 is not only set at both ends of the first slide rail 302, but also set below the second slide rail 306. This layout allows the device to effectively absorb the impact of movement in the X, Y and Z directions, thereby maximizing the stability of the laser head under high-speed movement on complex trajectories.

[0029] Working principle: When performing the cutting operation, the material to be processed is first placed flat on the placement table 6, and the preset cutting program is started by the controller. After the program is started, the cleaning brush 402 attached to the cutting mechanism 4 will move with the initial positioning of the moving mechanism 3 to clean the surface of the placement table 6 on the cutting path and remove debris that may affect the cutting accuracy.

[0030] Subsequently, the moving mechanism 3 begins to precisely drive the cutting mechanism 4 to move; the motor 2 drives the first reciprocating screw 301 to rotate forward and backward, and through the threaded engagement with the mounting post 304 of the first reciprocating screw 301, drives the fixedly connected sleeve 305 to achieve forward and backward movement; at the same time, the sleeve 305 can slide on the first slide rail 302 to achieve left and right movement; when it is necessary to adjust the cutting focal length or perform Z-axis cutting, the second reciprocating screw 307 installed in the sleeve 305 rotates, driving the laser nozzle 405 to move up and down; through the coordinated movement of the X, Y, and Z axes, the laser nozzle 405 can reach any predetermined point in space and move along a complex trajectory.

[0031] Throughout the laser cutting process, the exhaust fan 403 operates continuously. The air barrier 401 surrounding the laser nozzle 405 effectively collects the upward-drifting cutting fumes and dust, and draws these pollutants into the filter box 407 for filtration and purification through the suction pipe 404, thereby maintaining a clean working environment and protecting the health of the operators. During the high-speed movement and frequent reversals of the moving mechanism 3, the rubber blocks 303 located at both ends of the first slide rail 302 and below the second slide rail 306 continuously absorb and buffer the resulting impact and vibration. This vibration reduction effect ensures that the laser nozzle 405 maintains a high degree of posture stability, ultimately guaranteeing the high precision and high quality of the cut product. The waste generated during cutting falls into the waste box 5 below for centralized disposal.

Claims

1. An automated laser cutting device, comprising: Placement platform (6); The cutting mechanism (4) includes a laser nozzle (405); The moving mechanism (3), which drives the cutting mechanism (4) to move above the placement table (6), is characterized in that: The cutting mechanism (4) further includes a cleaning brush (402) disposed around the laser nozzle (405); and further includes: A gas shield (401) is provided around the laser nozzle (405); An exhaust fan (403) is connected to the air-blocking cover (401) via an air intake pipe (404); A rubber block (303) is disposed on the moving mechanism (3) to absorb the impact generated when the moving mechanism (3) moves.

2. The automated laser cutting device according to claim 1, characterized in that, The moving mechanism (3) includes: The first reciprocating screw (301) is used to drive the cutting mechanism (4) to move back and forth. The first slide rail (302) is used to support the cutting mechanism (4) to move left and right; the mounting column (304) is threaded into the first reciprocating screw (301). The sleeve (305) is slidably connected to the first slide rail (302) and fixedly connected to the mounting post (304), and the cutting mechanism (4) is mounted on the sleeve (305).

3. The automated laser cutting device according to claim 2, characterized in that, The moving mechanism (3) also includes a second reciprocating screw (307), which is installed in the housing (305) and is used to drive the laser nozzle (405) to move up and down.

4. The automated laser cutting device according to claim 3, characterized in that, The automated laser cutting device also includes a sleeve (406), which is sleeved on the outside of the second reciprocating lead screw (307).

5. The automated laser cutting device according to claim 3, characterized in that, The moving mechanism (3) further includes a second slide rail (306), and the rubber blocks (303) are respectively disposed at both ends of the first slide rail (302) and below the second slide rail (306).

6. The automated laser cutting device according to claim 1, characterized in that, The automated laser cutting device also includes a filter box (407), and the air outlet of the exhaust fan (403) is connected to the filter box (407).

7. The automated laser cutting device according to claim 2, characterized in that, The automated laser cutting device also includes a motor (2), the output shaft of which is connected to the first reciprocating lead screw (301) for transmission.

8. The automated laser cutting device according to claim 1, characterized in that, The automated laser cutting device also includes a base plate (1) and a waste box (5). The placement platform (6), the moving mechanism (3) and the cutting mechanism (4) are all installed on the base plate (1), and the waste box (5) is located below the placement platform (6).

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