Dustproof mechanism for laser cutting head

Abstract

The utility model relates to the field of laser equipment, and discloses a dustproof mechanism for a laser cutting head, which comprises a mounting plate, the upper end of the front surface of the mounting plate is fixedly connected with a motor, the lower end of the back of the mounting plate is provided with a dust suction device, and the lower end of the front surface of the mounting plate is fixedly connected with a dust blocking device. And the lower end of an output shaft of the motor is fixedly connected with a laser cutting head, the dust blocking device comprises a dust blocking cover, and the lower end of the inner surface of the dust blocking cover is fixedly connected with a limiting plate. According to the laser cutting head protection device, through the dust blocking cover, the limiting plate, the outer shaft, the dust blocking plate and the fixing shaft, after the laser cutting head is not used or used, the cutting head can be shielded and protected through the dust blocking cover on the outer side and the dust blocking plate on the lower side, and therefore the situation that the laser cutting head is damaged due to direct impact of external force is avoided; and meanwhile, the laser cutting head can be isolated from dust and impurities in the external environment, so that the subsequent use efficiency of the laser cutting head is improved.

Description

Technical Field

[0001] The utility model relates to the field of laser equipment, in particular to a dustproof mechanism for a laser cutting head. Background Art

[0002] The laser cutting head is a key component of the laser cutting machine, which is used to accurately focus the laser beam onto the workpiece surface and cut. At the same time, the design and performance of the laser cutting head are crucial to the efficiency and quality of the laser cutting process. A high-quality laser cutting head can provide higher cutting speeds, more precise cutting quality and longer service life, thereby improving production efficiency and reducing costs.

[0003] After searching, Chinese patent announcement number: CN210060141U discloses a dustproof laser cutting device. In this utility model, the cutting head translation mechanism is used to drive the laser cutting head to translate to achieve cutting; the dust cover is installed on the dust cover translation mechanism through the dust cover rotation mechanism and is located below the laser cutting head; the dust cover translation mechanism is used to drive the dust cover to translate with the laser cutting head, and the dust cover rotation mechanism is used to drive the dust cover to rotate following the cutting path of the laser cutting head.

[0004] However, in actual use, since the dust cover needs to be driven by an independent motor and driven close to the laser cutting head to perform dust protection operations, the overall energy consumption during use is relatively high. That is, in the process of driving the laser cutting head to move, the processor needs to analyze its motion trajectory and convert it into a rotation angle signal of the dust cover. Therefore, a dust protection mechanism for a laser cutting head is proposed to solve the above problem. Summary of the invention

[0005] In order to make up for the above shortcomings, the utility model provides a dustproof mechanism for a laser cutting head, aiming to improve the problem of high cost in the prior art of driving the dust cover to cooperate with the movement of the laser cutting head by a motor.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a dustproof mechanism for a laser cutting head, comprising a mounting plate, a motor is fixedly connected to the upper end of the front surface of the mounting plate, a dust suction device is arranged at the lower end of the back of the mounting plate, a dust blocking device is fixedly connected to the lower end of the front surface of the mounting plate, and a laser cutting head is fixedly connected to the lower end of the output shaft of the motor;

[0007] The dust shield device includes a dust shield cover, the lower end of the inner surface of the dust shield cover is fixedly connected to a limiting plate, the lower end of the dust shield cover is rotatably connected to an outer shaft, the outer arc surface of the outer shaft is fixedly connected to a dust shield plate, and the center of the inner surface of the outer shaft is rotatably connected to a fixed shaft.

[0008] As a further description of the above technical solution:

[0009] The dust suction device comprises a vacuum pump, an air inlet end of the vacuum pump is fixedly connected to a connecting pipe, an end of the connecting pipe away from the vacuum pump is fixedly connected to a collecting hood, and an inner surface of the collecting hood is fixedly connected to a filter plate.

[0010] As a further description of the above technical solution:

[0011] The outer arc surface of the motor is fixedly connected to the mounting plate through a mounting frame, and the interior of the dust cover is hollow.

[0012] As a further description of the above technical solution:

[0013] An arc-shaped groove is provided at the lower end of the dust cover, the limiting plate is arranged in an inclined shape as a whole, and a through hole is provided at the center of the inner surface of the outer shaft.

[0014] As a further description of the above technical solution:

[0015] The inner surface of the outer shaft is elastically connected to the fixed shaft through a spiral spring, the end of the dust shield away from the outer shaft is arranged in an arc shape, and the outer surface of the fixed shaft is fixedly connected to the dust shield.

[0016] As a further description of the above technical solution:

[0017] The lower end of the vacuum pump is communicated with the connecting pipe, the outer surface of the vacuum pump is fixedly connected to the mounting plate, and the outer surface of the connecting pipe is fixedly connected to the mounting plate.

[0018] As a further description of the above technical solution:

[0019] The outer surface of the collecting cover is fixedly connected to the dust cover, and a rectangular through hole is opened at one end of the collecting cover close to the dust cover.

[0020] As a further description of the above technical solution:

[0021] A cylindrical through hole is provided at one end of the collecting cover close to the connecting pipe, and the filter plate is arranged in an inclined shape as a whole.

[0022] The utility model has the following beneficial effects:

[0023] 1. The utility model provides a dust cover, a limit plate, an outer shaft, a dust cover plate and a fixed shaft, so that when the laser cutting head is not in use or after use, the outer dust cover and the lower dust cover plate can be used to shield and protect the cutting head, thereby avoiding damage to the laser cutting head caused by direct impact of external force, and at the same time, it can also isolate it from dust and impurities in the external environment, thereby improving the subsequent use efficiency of the laser cutting head.

[0024] 2. The utility model provides a collecting hood, a filter plate, a vacuum pump and a connecting pipe, so that when the laser cutting head is located inside the dust cover, the dust and impurities that may gather inside when the dust shield plate below the dust cover is opened can be adsorbed by vacuum negative pressure adsorption, thereby ensuring that even when there is dust residual inside the dust cover, the laser cutting head can still be maintained in a low dust environment, thereby further improving the subsequent work efficiency of the laser cutting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a dust prevention mechanism for a laser cutting head proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of a cross section of a dust cover of a dust-proof mechanism for a laser cutting head proposed in the utility model;

[0027] Figure 3 This is a schematic diagram of a dust shield plate of a dust prevention mechanism for a laser cutting head proposed by the utility model;

[0028] Figure 4 The utility model is a schematic diagram of the structure of a dust suction device of a dust prevention mechanism for a laser cutting head.

[0029] Legend:

[0030] 1. Mounting plate; 2. Dust shield; 3. Dust suction device; 4. Laser cutting head; 5. Motor; 201. Dust shield; 202. Limit plate; 203. Outer shaft; 204. Dust shield plate; 205. Fixed shaft; 301. Collecting hood; 302. Filter plate; 303. Vacuum pump; 304. Connecting pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: comprising a mounting plate 1, a motor 5 is fixedly connected to the upper end of the front surface of the mounting plate 1, a dust collecting device 3 is arranged at the lower end of the back of the mounting plate 1, a dust blocking device 2 is fixedly connected to the lower end of the front surface of the mounting plate 1, and a laser cutting head 4 is fixedly connected to the lower end of the output shaft of the motor 5;

[0033] The dust shield device 2 includes a dust shield 201, the lower end of the inner surface of the dust shield 201 is fixedly connected to a limiting plate 202, the lower end of the dust shield 201 is rotatably connected to an outer shaft 203, the outer arc surface of the outer shaft 203 is fixedly connected to a dust shield plate 204, and the inner surface center of the outer shaft 203 is rotatably connected to a fixed shaft 205.

[0034] The outer arc surface of the motor 5 is fixedly connected to the mounting plate 1 through a mounting frame, so the position stability of the motor 5 can be guaranteed. The interior of the dust cover 201 is hollow, and an arc-shaped groove is provided at the lower end of the dust cover 201, so that the outer shaft 203 can be accommodated here. The limit plate 202 is arranged in an inclined shape as a whole, and its lower end is arranged in a plane, so that it can limit the movement range of the dust cover 204. A through hole is provided at the center of the inner surface of the outer shaft 203, so that the fixed shaft 205 can be accommodated here. The inner surface of the outer shaft 203 is elastically connected to the fixed shaft 205 through a volute spring, so when the dust cover 204 is not subjected to external force, it will always maintain contact with the limit plate 202. The end of the dust cover 204 away from the outer shaft 203 is arranged in an arc shape, so that the dust covers 204 on both sides are not easy to interfere with each other's movement when rotating, and the outer surface of the fixed shaft 205 is fixedly connected to the dust cover 201.

[0035] Reference Figure 1 as well as Figure 4 The dust collecting device 3 includes a vacuum pump 303 , an air inlet end of the vacuum pump 303 is fixedly connected to a connecting pipe 304 , an end of the connecting pipe 304 away from the vacuum pump 303 is fixedly connected to a collecting hood 301 , and a filter plate 302 is fixedly connected to the inner surface of the collecting hood 301 .

[0036] The lower end of the vacuum pump 303 is connected to the connecting pipe 304, the outer surface of the vacuum pump 303 is fixedly connected to the mounting plate 1, the outer surface of the connecting pipe 304 is fixedly connected to the mounting plate 1, the outer surface of the collecting hood 301 is fixedly connected to the dust cover 201, and a rectangular through hole is provided at one end of the collecting hood 301 close to the dust cover 201, so that it can be connected to the dust cover 201, and a cylindrical through hole is provided at one end of the collecting hood 301 close to the connecting pipe 304, so that it can be connected to the connecting pipe 304, and the filter plate 302 is arranged to be inclined as a whole, so that the contact area between the whole and dust and impurities is increased, thereby reducing the probability of it being blocked.

[0037] Working principle: When the device is in use, the motor 5 needs to drive the laser cutting head 4 below to move downward as a whole. At this time, the laser cutting head 4 will move downward and contact the dust shield 204. At this time, the dust shield 204 will open to both sides due to the extrusion, and expose the internal laser cutting head 4 to perform laser cutting on the workpiece below. At the same time, after the cutting is completed, the motor 5 will drive the laser cutting head 4 to move upward and gradually break away from the contact with the dust shield 204. At this time, due to the elastic force of the spiral spring, the outer shaft 203 will drive the dust shields 204 on both sides to move closer to each other, thereby sealing and covering the lower end of the dust cover 201.

[0038] At the same time, when the laser cutting head 4 is used, the vacuum pump 303 will be started to extract the air inside the collection cover 301 through the connecting pipe 304. Since the collection cover 301 is connected to the dust cover 201, the dust that may exist inside the dust cover 201 will move to the inside of the collection cover 301 and be blocked by the filter plate 302 to prevent it from entering the vacuum pump 303. At the same time, when the collected dust and impurities need to be processed, the fixed connection between the collection cover 301 and the dust cover 201 can be released by unscrewing the bolts and the dust can be collected.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust prevention mechanism for a laser cutting head, comprising a mounting plate (1), characterized in that: The upper end of the front surface of the mounting plate (1) is fixedly connected to a motor (5), the lower end of the back of the mounting plate (1) is provided with a dust suction device (3), the lower end of the front surface of the mounting plate (1) is fixedly connected to a dust blocking device (2), and the lower end of the output shaft of the motor (5) is fixedly connected to a laser cutting head (4); The dust shield device (2) comprises a dust shield (201), the lower end of the inner surface of the dust shield (201) is fixedly connected to a limit plate (202), the lower end of the dust shield (201) is rotatably connected to an outer shaft (203), the outer arc surface of the outer shaft (203) is fixedly connected to a dust shield plate (204), and the inner surface center of the outer shaft (203) is rotatably connected to a fixed shaft (205).

2. The dust-proof mechanism for a laser cutting head according to claim 1, characterized in that: The dust collecting device (3) comprises a vacuum pump (303), an air inlet end of the vacuum pump (303) being fixedly connected to a connecting pipe (304), an end of the connecting pipe (304) away from the vacuum pump (303) being fixedly connected to a collecting hood (301), and an inner surface of the collecting hood (301) being fixedly connected to a filter plate (302).

3. The dust-proof mechanism for a laser cutting head according to claim 1, characterized in that: The outer arc surface of the motor (5) is fixedly connected to the mounting plate (1) via a mounting frame, and the interior of the dust cover (201) is hollow.

4. The dust-proof mechanism for a laser cutting head according to claim 1, characterized in that: An arc-shaped groove is provided at the lower end of the dust shield (201); the limit plate (202) is arranged in an inclined shape as a whole; and a through hole is provided at the center of the inner surface of the outer shaft (203).

5. The dust-proof mechanism for a laser cutting head according to claim 1, characterized in that: The inner surface of the outer shaft (203) is elastically connected to the fixed shaft (205) via a spiral spring, one end of the dust shield (204) away from the outer shaft (203) is arranged in an arc shape, and the outer surface of the fixed shaft (205) is fixedly connected to the dust shield (201).

6. The dust-proof mechanism for a laser cutting head according to claim 2, characterized in that: The lower end of the vacuum pump (303) is connected to the connecting pipe (304), the outer surface of the vacuum pump (303) is fixedly connected to the mounting plate (1), and the outer surface of the connecting pipe (304) is fixedly connected to the mounting plate (1).

7. The dust-proof mechanism for a laser cutting head according to claim 2, characterized in that: The outer surface of the collecting cover (301) is fixedly connected to the dust cover (201), and a rectangular through hole is provided at one end of the collecting cover (301) close to the dust cover (201).

8. The dust-proof mechanism for a laser cutting head according to claim 2, characterized in that: A cylindrical through hole is provided at one end of the collecting cover (301) close to the connecting pipe (304), and the filter plate (302) is arranged in an inclined shape as a whole.

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