Laser cutting dust removal device

Abstract

This utility model discloses a laser cutting dust removal device, including a negative pressure hood, a drive mechanism, a mounting plate, a laser cutter, a connecting rod, and a positioning wheel. The mounting plate is fixed to the drive mechanism, which drives the mounting plate to move. The laser cutter is fixed to the mounting plate. The negative pressure hood is slidably connected to the side of the mounting plate. The connecting rod is connected to the side of the negative pressure hood, and the lower end of the connecting rod is connected to the positioning wheel. The laser cutting dust removal device also includes a sliding plate and a connecting bolt. The sliding plate is fixedly connected to the mounting plate, and a sliding groove is formed in the vertical direction on the sliding plate. The connecting bolt passes through the sliding groove and is fixedly connected to the negative pressure hood. In this utility model, the negative pressure hood and the mounting plate are slidably connected, and the positioning wheel contacts the workpiece. Even if the laser cutter moves up and down significantly, the distance between the negative pressure hood and the workpiece remains within a certain range, preventing the negative pressure hood from being too far from the workpiece and thus failing to suck up dust from the workpiece surface, thereby improving the dust removal effect.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, specifically to a laser cutting dust removal device. Background Technology

[0002] When an electron in an atom absorbs energy and jumps from a lower energy level to a higher energy level, and then falls back from the higher energy level to a lower energy level, the released energy is emitted in the form of photons. The resulting photon beam (laser) is induced (excited). Laser technology has been widely used in many fields such as communications, medicine, and materials processing. Based on their operating mode, lasers can be divided into continuous lasers and pulsed lasers. Among them, pulsed lasers, due to their high power and high precision characteristics, have broad application prospects in circuit manufacturing, wafer dicing, laser surgery, and fiber optic communications.

[0003] Laser cutting utilizes a high-power-density laser beam to scan the surface of a material, heating it to thousands to tens of thousands of degrees Celsius in a very short time, causing the material to melt or vaporize. High-pressure gas then blows the molten or vaporized material away from the kerf, achieving the purpose of cutting the material. Because laser cutting uses an invisible laser beam instead of a traditional mechanical blade, and the mechanical parts of the laser head do not contact the workpiece, it does not scratch the work surface during operation. Therefore, it is widely used in various fields of industrial production. However, when using laser cutting machines to cut steel plates or other metal sheets, a large amount of dust is generated. This dust can contaminate related parts and workpieces on the machine tool, affecting normal cutting.

[0004] In existing technologies, dust hoods are generally moved with the laser cutter. If the workpiece surface is uneven, or if the laser cutter needs to be adjusted up and down along the height direction, the distance between the dust hood and the workpiece surface will change. If the distance is too large, the dust removal effect of the dust hood will be poor, which is not conducive to actual production. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a laser cutting dust removal device to solve the problem that the large variation in the distance between the dust removal hood and the workpiece surface affects the dust removal effect in the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows: A laser cutting dust removal device includes a negative pressure hood, a drive mechanism, a mounting plate, a laser cutter, a connecting rod, and a positioning wheel, wherein: the mounting plate is fixed to the drive mechanism, and the drive mechanism is used to drive the mounting plate to move; the laser cutter is fixed to the mounting plate; the negative pressure hood is slidably connected to the side of the mounting plate; the connecting rod is connected to the side of the negative pressure hood, and the lower end of the connecting rod is connected to the positioning wheel.

[0007] Preferably, the laser cutting dust removal device further includes a sliding plate and connecting bolts. The sliding plate is fixedly connected to the mounting plate. The sliding plate has a sliding groove in the vertical direction. The connecting bolts pass through the sliding groove and are fixedly connected to the negative pressure cover.

[0008] Preferably, two sliding plates are arranged in parallel, and two connecting bolts are provided, each corresponding to one of the two sliding plates.

[0009] Preferably, the laser cutting dust removal device further includes connecting nuts, a connecting part is formed on the side of the negative pressure cover, the connecting part has a through hole so that the connecting rod passes through the connecting part, and two connecting nuts are respectively provided on both sides of the connecting part, and the two connecting nuts are threadedly connected to the connecting rod.

[0010] Preferably, two connecting portions are formed on each of the two sides of the negative pressure cover, and two sets of connecting nuts, connecting rods and positioning wheels are provided, corresponding to the two connecting portions respectively.

[0011] Preferably, the laser cutting dust removal device further includes air blowing pipes and connecting blocks, wherein multiple air blowing pipes are provided and the multiple air blowing pipes are fixedly connected to each other by the connecting blocks.

[0012] Preferably, the laser cutting dust removal device further includes a fixing plate, one end of which is fixedly connected to the negative pressure cover, and the other end of which is fixedly connected to the connecting block.

[0013] Preferably, the laser cutting dust removal device further includes a camera, which is fixedly connected to the mounting plate.

[0014] Preferably, the laser cutting dust removal device further includes a counterweight block, which is fixedly connected to the negative pressure hood.

[0015] Compared with the prior art, the beneficial effects of this utility model include: the negative pressure hood and the mounting plate are slidably connected up and down, and the positioning wheel contacts the workpiece. Even if the laser cutter moves up and down significantly, the distance between the negative pressure hood and the workpiece is maintained within a certain range, which avoids the negative pressure hood and the workpiece being too far apart and unable to suck up the dust on the surface of the workpiece, thus improving the dust removal effect. Attached Figure Description

[0016] Figure 1 This is a perspective view of the laser cutting dust removal device provided by this utility model;

[0017] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0018] Reference numerals: 1-Negative pressure cover, 2-Drive mechanism, 3-Mounting plate, 4-Laser cutter, 5-Connecting rod, 6-Positioning wheel, 7-Sliding plate, 8-Connecting bolt, 9-Connecting nut, 10-Blowing pipe, 11-Connecting block, 12-Fixing plate, 13-Camera, 14-Counterweight block, 1a-Connecting part, 7a-Sliding groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Please see Figure 1 and Figure 2 This embodiment provides a laser cutting dust removal device, including a negative pressure hood 1, a drive mechanism 2, a mounting plate 3, a laser cutter 4, a connecting rod 5, and a positioning wheel 6. The negative pressure hood 1 is connected to a negative pressure device via a pipe, continuously extracting gas from the negative pressure hood 1 to achieve negative pressure dust removal. The drive mechanism 2 is used to drive the laser cutter 4 to move within a three-axis range, and the connecting rod 5 is used to connect the positioning wheel 6 and the negative pressure hood 1.

[0021] Mounting plate 3 is fixed to drive mechanism 2. Drive mechanism 2 is used to drive mounting plate 3. Moving drive mechanism 2 is used to drive laser cutter 4 to move within a three-axis range. Since the focal length adjustment range of laser cutter 4 is limited, it is occasionally necessary to move laser cutter 4 up and down along the z-axis to adjust laser cutter 4 to focus it.

[0022] The laser cutter 4 is fixed to the mounting plate 3. Generally, the laser cutter 4 and the mounting plate 3 can be fixedly connected by bolts or other means.

[0023] The negative pressure hood 1 is slidably connected to the side of the mounting plate 3. Specifically, the laser cutting dust removal device also includes a sliding plate 7 and connecting bolts 8. The sliding plate 7 is fixedly connected to the mounting plate 3. The sliding plate 7 has a sliding groove 7a in the vertical direction, and the connecting bolts 8 pass through the sliding groove 7a and are fixedly connected to the negative pressure hood 1. Furthermore, two sliding plates 7 are arranged in parallel, and two connecting bolts 8 are arranged, corresponding to the two sliding plates 7 respectively, so that the negative pressure hood 1 can move up and down more smoothly.

[0024] The connecting rod 5 is connected to the side of the negative pressure cover 1, and the lower end of the connecting rod 5 is connected to the positioning wheel 6. The positioning wheel 6 contacts the workpiece. Therefore, when the drive mechanism 2 drives the laser cutter 4 to move in the horizontal plane, the positioning wheel 6 and the negative pressure cover 1 move accordingly. If the surface of the workpiece is uneven, the positioning wheel 6 will move up and down with the surface of the workpiece. Therefore, the positioning wheel 6 can keep the distance between the negative pressure cover 1 and the workpiece surface as small as possible. To further reduce the distance change between the negative pressure cover 1 and the workpiece, the positioning wheel 6 can generally be installed as close as possible to the center of the laser beam. Preferably, the laser cutting dust removal device also includes a connecting nut 9. A connecting part 1a is formed on the side of the negative pressure cover 1. The connecting part 1a has a through hole so that the connecting rod 5 passes through the connecting part 1a. Two connecting nuts 9 are respectively provided on both sides of the connecting part 1a. The two connecting nuts 9 are threadedly connected to the connecting rod 5. The connecting nuts are used to adjust the relative position of the positioning wheel 6 and the negative pressure cover 1, that is, to adjust the distance between the negative pressure cover 1 and the workpiece. In a further preferred embodiment, two connecting parts 1a are formed on each of the two sides of the negative pressure cover 1. Two sets of connecting nuts 9, connecting rods 5 and positioning wheels 6 are provided, corresponding to the two connecting parts 1a respectively, so that the negative pressure cover 1 is supported by the two sets of positioning wheels 6 and connecting rods 5, making the connection more stable.

[0025] Preferably, the laser cutting dust removal device further includes air blowing pipes 10 and connecting blocks 11. Multiple air blowing pipes 10 are provided and fixedly connected to each other by connecting blocks 11. The air blowing pipes 10 are used to blow air towards one side of the negative pressure hood 1, blowing dust from the workpiece surface into the negative pressure hood 1. Specifically, the laser cutting dust removal device also includes a fixing plate 12. One end of the fixing plate 12 is fixedly connected to the negative pressure hood 1, and the other end is fixedly connected to the connecting block 11. Here, welding, bolting, or other connection methods can generally be used.

[0026] Preferably, the laser cutting dust removal device also includes a camera 13, which is fixedly connected to the mounting plate 3 and is used to detect the situation during laser beam cutting.

[0027] Preferably, the laser cutting dust removal device also includes a counterweight 14, which is fixedly connected to the negative pressure cover 1 to increase the downward pressure of the negative pressure cover 1 and make the positioning wheel 6 contact the workpiece more closely.

[0028] In summary, the laser cutting dust removal device provided by this utility model features a negative pressure hood 1 that is slidably connected to the mounting plate 3, with the positioning wheel 6 in contact with the workpiece. Even if the laser cutter 4 moves up and down significantly, the distance between the negative pressure hood 1 and the workpiece remains within a certain range, preventing the negative pressure hood 1 from being too far from the workpiece and thus failing to suck up dust from the workpiece surface, thereby improving the dust removal effect. It also prevents the workpiece from colliding with the negative pressure hood due to excessive proximity, thus avoiding accidents.

[0029] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A laser cutting dust removal device, characterized in that, Includes a negative pressure hood, drive mechanism, mounting plate, laser cutter, connecting rod, and positioning wheels, among which: The mounting plate is fixed to the driving mechanism, and the driving mechanism is used to drive the mounting plate to move. The laser cutter is fixed to the mounting plate; The negative pressure cover is slidably connected to the side of the mounting plate. The connecting rod is connected to the side of the negative pressure cover, and the lower end of the connecting rod is connected to the positioning wheel.

2. The laser cutting dust removal device according to claim 1, characterized in that, The laser cutting dust removal device also includes a sliding plate and connecting bolts. The sliding plate is fixedly connected to the mounting plate. The sliding plate has a sliding groove in the vertical direction. The connecting bolts pass through the sliding groove and are fixedly connected to the negative pressure cover.

3. The laser cutting dust removal device according to claim 2, characterized in that, Two sliding plates are arranged in parallel, and two connecting bolts are provided, each corresponding to one of the two sliding plates.

4. The laser cutting dust removal device according to claim 1, characterized in that, The laser cutting dust removal device also includes connecting nuts. A connecting part is formed on the side of the negative pressure cover. The connecting part has a through hole so that the connecting rod passes through the connecting part. Two connecting nuts are respectively provided on both sides of the connecting part, and the two connecting nuts are threadedly connected to the connecting rod.

5. The laser cutting dust removal device according to claim 4, characterized in that, The negative pressure cover has two connecting parts formed on its two sides, and two sets of connecting nuts, connecting rods and positioning wheels are provided, corresponding to the two connecting parts respectively.

6. The laser cutting dust removal device according to claim 1, characterized in that, The laser cutting dust removal device also includes air blowing pipes and connecting blocks. Multiple air blowing pipes are provided, and the multiple air blowing pipes are fixedly connected to each other by the connecting blocks.

7. A laser cutting dust removal device according to claim 6, characterized in that, The laser cutting dust removal device also includes a fixing plate, one end of which is fixedly connected to the negative pressure cover, and the other end of which is fixedly connected to the connecting block.

8. The laser cutting dust removal device according to claim 1, characterized in that, The laser cutting dust removal device also includes a camera, which is fixedly connected to the mounting plate.

9. A laser cutting dust removal device according to claim 1, characterized in that, The laser cutting dust removal device also includes a counterweight, which is fixedly connected to the negative pressure hood.

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