A protective device that is easy to disassemble and assemble

Abstract

This utility model discloses a protective device that is easy to assemble and disassemble, including a laser cutting machine body, an exhaust assembly, a heat dissipation assembly, and a protective cover. The laser head is located on the lower end face of the laser cutting machine body. The exhaust assembly is located in front of the outer surface of the laser cutting machine body, and the heat dissipation assembly is located behind the outer surface of the laser cutting machine body. An internal thread is formed on the inner surface of a fixing ring, and a protective cover is located on the lower end face of the fixing ring. This easy-to-assemble and disassemble protective device effectively improves heat dissipation efficiency through the air-cooled flow heat dissipation structure formed by the exhaust assembly and the heat dissipation assembly. This allows the laser cutting machine body to quickly dissipate heat during operation and facilitates disassembly, making it easier for maintenance personnel to clean, maintain, and replace parts. The protective cover encloses the cutting head to prevent sparks, debris, and smoke from splashing into the surrounding environment. The threaded connection facilitates disassembly, allowing operators to easily clean the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a protective device which is easy to disassemble and assemble. Background Art

[0002] Laser cutting machine is to focus the laser emitted from the laser into a high power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point, and at the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal.

[0003] For example, the patent document with application number 202220848686.X discloses a protective device for a laser cutting head, including a laser cutting head body, a protective shell is mounted on the outside of the laser cutting head body, and the two ends of the protective shell are respectively provided with a first through groove and a second through groove, and the two ends of the laser cutting head body extend to the outside of the protective shell through the first through groove and the second through groove respectively, and a shock absorbing ring is mounted on the outside of the protective shell, and the inner wall of the shock absorbing ring is evenly provided with shock absorbing springs, and the other end of the shock absorbing spring is fixedly connected to the outer wall of the protective shell. This kind of protective device for a laser cutting head can protect the laser cutting head body through the protective shell when the laser cutting head body is cutting, and at the same time, the elasticity of the shock absorbing spring is utilized to absorb the resistance generated by the shock absorbing ring when it collides with debris, so that the laser cutting head body can be fully protected, and the protective shell can be firmly fixed to the outside of the laser cutting head body by turning the knob.

[0004] Similar protective devices, a large amount of heat will be generated during the cutting process. If the heat is not dissipated in time, the high temperature of the machine body will affect the cutting quality and even cause equipment damage. When the cutting head is cutting at close range with the workpiece, a large amount of smoke, debris and sputtering sparks will be generated, causing personal injury and equipment damage.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a protective device that is easy to disassemble and assemble is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a protective device that is easy to disassemble and assemble. A large amount of heat will be generated during the cutting process. If the heat is not dissipated in time, the temperature of the machine body will be too high, which will affect the cutting quality and even cause equipment damage. In addition, when the cutting head is cutting at a close distance with the workpiece, a large amount of smoke, debris and sputtering sparks will be generated, leading to personal injury and equipment damage.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device that is easy to disassemble and assemble, comprising a laser cutting body, an exhaust assembly, a heat dissipation assembly and a protective cover, the lower end face of the laser cutting body is provided with a laser head, the outer surface of the upper end of the laser head is provided with an external thread, the exhaust assembly is provided in front of the outer surface of the laser cutting body, the heat dissipation assembly is provided behind the outer surface of the laser cutting body, the outer surface of the external thread is provided with a fixing ring, the inner surface of the fixing ring is provided with an internal thread, and the lower end face of the fixing ring is provided with a protective cover.

[0008] Furthermore, the exhaust assembly includes a front half shell, a DC fan, a first connecting ear and bolts. The front half shell is arranged on the front end face of the laser cutting body, a DC fan is arranged at the center of the front half shell, first connecting ears are arranged on both sides of the front half shell, bolts are arranged on the surface of the first connecting ear, and four groups of bolts are arranged.

[0009] Furthermore, the heat dissipation assembly includes a rear half shell, a heat dissipation port, a second connecting ear and a threaded hole. The rear half shell is arranged on the rear end face of the laser cutting body. A heat dissipation port is opened at the center of the rear half shell. Second connecting ears are arranged on both sides of the rear half shell. Threaded holes are opened on the surface of the second connecting ear. Four groups of threaded holes are arranged.

[0010] Furthermore, the external thread and the internal thread are meshed with each other, and the protective cover is in the shape of a trumpet structure.

[0011] Furthermore, the exhaust assembly and the heat dissipation assembly form a complete heat dissipation structure, and the two groups of bolts penetrate through the first connecting ears and engage with the threaded holes.

[0012] Furthermore, the positions of the two groups of the first connecting ears and the two groups of the second connecting ears correspond to each other, and the first connecting ears and the second connecting ears abut against each other.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the air-cooled flow heat dissipation structure composed of the exhaust assembly and the heat dissipation assembly effectively improves the heat dissipation efficiency, enables the laser cutting machine body to quickly dissipate heat during operation, and is convenient to disassemble, making it easier for maintenance personnel to clean, maintain and replace parts. The cutting head is wrapped with a protective cover to prevent sparks, debris and smoke from splashing into the surrounding environment. The threaded connection facilitates disassembly so that the operator can easily clean the protective cover. The specific contents are as follows:

[0014] A laser cutting body, an exhaust assembly and a heat dissipation assembly are provided, and a complete air-cooling heat dissipation structure is formed by the exhaust assembly and the heat dissipation assembly. A DC fan is used to rotate the blades in the inner cavity of the structure so that the surrounding air is forced to rotate with it, thereby forming an airflow, thereby generating wind force, and the wind force passes through the surface of the laser cutting body and is discharged from the heat dissipation port in the heat dissipation assembly, thereby performing air-cooling heat dissipation. The first connecting ear is engaged with the threaded hole of the second connecting ear by a bolt, thereby connecting and fixing the exhaust assembly and the heat dissipation assembly. When disassembly is required, it can be disassembled and cleaned by simply rotating the bolt, thereby facilitating maintenance by the operator.

[0015] A laser machine head, an external thread, a fixing ring, an internal thread and a protective cover are provided. On the surface of the laser machine head, since the fixing ring is connected to the protective cover, the internal thread of the fixing ring engages with the external thread of the laser machine head, so that the protective cover can be easily removed from the laser machine head by a rotating operation, and it is convenient for the operator to clean impurities splashed on the surface when cutting the workpiece. The protective cover is arranged when the cutting machine head is close to the workpiece for cutting to generate splashing sparks and impurities, which can reduce the splashing of sparks and debris to the surrounding area through cutting. The shielding plate can effectively isolate the cutting area, reduce the splashing of debris, and avoid affecting the surrounding environment and the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a protective device that is easy to disassemble and assemble according to the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of a heat dissipation component of a protective device that is easy to disassemble and assemble according to the utility model;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of a laser machine head with a protective device that is easy to disassemble and assemble according to the utility model;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of a protective cover of a protective device that is easy to disassemble and assemble according to the utility model;

[0020] Figure 5 The utility model is a three-dimensional structural schematic diagram of a fixing ring of a protective device which is easy to disassemble and assemble.

[0021] In the figure: 1. Laser cutting body; 2. Laser head; 3. External thread; 4. Exhaust assembly; 401. Front half shell; 402. DC fan; 403. First connecting ear; 404. Bolt; 5. Heat dissipation assembly; 501. Rear half shell; 502. Heat dissipation port; 503. Second connecting ear; 504. Threaded hole; 6. Fixing ring; 7. Internal thread; 8. Protective cover. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figures 1 to 5 As shown, a protective device that is easy to disassemble and assemble includes a laser cutting body 1, an exhaust component 4, a heat dissipation component 5 and a protective cover 8. A laser head 2 is arranged on the lower end surface of the laser cutting body 1. The laser cutting body 1 and the laser head 2 form a laser cutting mechanism for cutting workpieces. An external thread 3 is arranged on the outer surface of the upper end of the laser head 2. The external thread 3 provides a connection function. A fixing ring 6 is arranged on the outer surface of the external thread 3. An internal thread 7 is provided on the inner surface of the fixing ring 6. The external thread 3 and the internal thread 7 are meshed with each other. The fixing ring 6 is meshed with the outer surface of the upper end of the laser head 2 through the internal thread 7, so as to be fixedly installed. When disassembly is required, the fixing ring 6 only needs to be rotated to complete the disassembly. A protective cover 8 is arranged on the lower end surface of the fixing ring 6. The shape of the protective cover 8 is a horn structure. The protective cover 8 blocks the sparks and debris generated by the laser head 2 when cutting close to the workpiece to avoid affecting the surrounding environment.

[0024] The exhaust assembly 4 is arranged in front of the outer surface of the laser cutting body 1. The exhaust assembly 4 generates wind to cool the surface of the laser cutting body 1. The exhaust assembly 4 includes a front half shell 401, a DC fan 402, a first connecting ear 403 and a bolt 404. The front half shell 401 is arranged on the front end surface of the laser cutting body 1. The front half shell 401 is fixed on the surface of the laser cutting body 1 and provides support for the DC fan 402. The DC fan 402 is arranged at the center of the front half shell 401. The DC fan 402 uses the rotation of the blades in the inner cavity of the structure to force the surrounding air to follow the rotation to form an airflow, thereby generating wind force. By setting the direction of the blades, the wind force is blown on the surface of the laser cutting body 1. First connecting ears 403 are arranged on both sides of the front half shell 401. Bolts 404 are arranged on the surface of the first connecting ears 403. Four groups of bolts 404 are arranged. Two groups of first connecting ears 403 provide a penetration limit function for the bolts 404 to ensure that the bolts 404 penetrate therethrough.

[0025] The heat dissipation component 5 is arranged at the rear of the outer surface of the laser cutting body 1. The heat dissipation component 5 is used to discharge the hot air generated by the exhaust component 4 after flowing to the surface of the laser cutting body 1 to dissipate heat. The heat dissipation component 5 includes a rear half shell 501, a heat dissipation port 502, a second connecting ear 503 and a threaded hole 504. The rear half shell 501 is arranged on the rear end surface of the laser cutting body 1. The rear half shell 501 is used to be installed in the laser cutting body 1 and abut against the front half shell 401. A heat dissipation port 502 is opened at the center of the rear half shell 501, and the rear heat dissipation port 502 discharges the flowing hot air.

[0026] Second connecting ears 503 are provided on both sides of the rear half shell 501. Threaded holes 504 are opened on the surface of the second connecting ears 503. Four groups of threaded holes 504 are provided. The second connecting ears 503 abut against the first connecting ears 403, and threaded holes 504 correspondingly connected and engaged with bolts 404 are provided. The exhaust component 4 and the heat dissipation component 5 form a complete heat dissipation structure. The exhaust component 4 generates wind force, and the heat dissipation component 5 discharges wind force to form a flowing air-cooled structure. The two groups of bolts 404 penetrate the first connecting ears 403 and engage with the threaded holes 504. The positions of the two groups of first connecting ears 403 and the two groups of second connecting ears 503 correspond to each other. The first connecting ears 403 and the second connecting ears 503 abut against each other. The exhaust component 4 abuts against the second connecting ear 503 of the heat dissipation component 5 through the first connecting ear 403, and is installed and fixed by the bolt 404 penetrating the first connecting ear 403 and engaging with the internal thread 7 of the second connecting ear 503, and is combined into a whole.

[0027] In summary, if Figures 1 to 5 As shown, the protective device which is easy to disassemble and assemble, the laser cutting body 1 and the laser head 2 form a laser cutting mechanism to cut the workpiece, the exhaust component 4 and the heat dissipation component 5 form a group of air-cooled heat dissipation structures, and the DC fan 402 at the front half shell 401 is started, and the surrounding air is forced to rotate with the rotation of the blades in the inner cavity of the structure to form an airflow, thereby generating wind force, and the direction of the blades is set so that the wind force blows on the surface of the laser cutting body 1, and then the wind force flows to the surface and then flows to the heat dissipation port 502 of the rear half shell 501 for discharge.

[0028] The exhaust assembly 4 is connected and fixed to the heat dissipation assembly 5 by means of a bolt 404 that penetrates through the first connecting ear 403 and engages with the threaded hole 504 of the second connecting ear 503. When disassembly is required, the bolt 404 can be disassembled and maintained by simply rotating it out. The fixing ring 6 is engaged with the external thread 3 of the laser head 2 through the internal thread 7. Since the protective cover 8 is connected to the fixing ring 6, it can be rotated out along the external thread 3 by rotating the fixing ring 6.

Claims

1. A protective device that is easy to assemble and disassemble, comprising a laser cutting body (1), an exhaust assembly (4), a heat dissipation assembly (5) and a protective cover (8), characterized in that: The lower end surface of the laser cutting machine body (1) is provided with a laser head (2), the outer surface of the upper end of the laser head (2) is provided with an external thread (3), the exhaust assembly (4) is provided in front of the outer surface of the laser cutting machine body (1), the heat dissipation assembly (5) is provided behind the outer surface of the laser cutting machine body (1), the outer surface of the external thread (3) is provided with a fixing ring (6), the inner surface of the fixing ring (6) is provided with an internal thread (7), and the lower end surface of the fixing ring (6) is provided with a protective cover (8).

2. The protective device that is easy to assemble and disassemble according to claim 1, characterized in that: The exhaust assembly (4) comprises a front half shell (401), a DC fan (402), a first connecting ear (403) and a bolt (404); the front half shell (401) is arranged on the front end surface of the laser cutting machine body (1); the DC fan (402) is arranged at the center of the front half shell (401); the first connecting ears (403) are arranged on both sides of the front half shell (401); the surface of the first connecting ear (403) is provided with a bolt (404); and the bolt (404) is provided in four groups.

3. The protective device that is easy to assemble and disassemble according to claim 2, characterized in that: The heat dissipation assembly (5) comprises a rear half shell (501), a heat dissipation port (502), a second connecting ear (503) and a threaded hole (504); the rear half shell (501) is arranged on the rear end face of the laser cutting machine body (1); a heat dissipation port (502) is provided at the center of the rear half shell (501); second connecting ears (503) are provided on both sides of the rear half shell (501); a threaded hole (504) is provided on the surface of the second connecting ear (503); and four groups of threaded holes (504) are provided.

4. The protective device that is easy to assemble and disassemble according to claim 3, characterized in that: The external thread (3) and the internal thread (7) are engaged with each other, and the protective cover (8) is shaped like a trumpet structure.

5. The protective device that is easy to assemble and disassemble according to claim 4, characterized in that: The exhaust assembly (4) and the heat dissipation assembly (5) form a complete heat dissipation structure, and the two groups of bolts (404) penetrate the first connecting ear (403) and engage with the threaded hole (504).

6. The protective device that is easy to assemble and disassemble according to claim 5, characterized in that: The positions of the two groups of the first connecting ears (403) and the two groups of the second connecting ears (503) correspond to each other, and the first connecting ears (403) and the second connecting ears (503) abut against each other.

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