Laser cutting head device with cooling system

Abstract

The utility model discloses a laser cutting head device with a cooling system, which comprises an upper protective mirror component, a collimating mirror component, a focusing mirror component, a lower protective mirror component, a nozzle follow-up component and a spray head, connecting plugs are inserted into water inlets and water outlets in the outer walls of one sides of the upper protective lens assembly, the collimating lens assembly, the focusing lens assembly, the lower protective lens assembly and the nozzle follow-up assembly correspondingly, circulating pipes are connected to the outer walls of the connecting plugs, fixing sleeves are fixed to the outer walls of the circulating pipes, fixing pieces are fixed to the outer walls of the fixing sleeves, and heat dissipation plates are fixed to the outer walls of the fixing pieces. A plurality of heat dissipation strips are fixed to the outer wall of the heat dissipation plate, a set of L-shaped plates are fixed to the outer wall of the heat dissipation plate, and a second supporting plate is fixed to the outer wall of one side of the upper protective mirror assembly. The cooling system can timely dissipate heat of the cooling liquid after absorbing heat, so that the heat absorption cooling effect of the cooling liquid on the interiors of a plurality of assemblies is improved, and the working efficiency of the whole cooling system is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting equipment, in particular to a laser cutting head device with a cooling system. Background Technique

[0002] The laser cutting head is an important part of the laser cutting machine. At present, the laser cutting heads on the market mainly focus on medium and low power. The greater the power of the laser cutting head, the greater the thickness of the metal plate that can be cut accordingly. Therefore, the market demand for high-power laser cutting heads is increasing. However, the greater the power of the laser cutting head, the more serious the heat generation of the lenses inside the laser cutting head. The existing laser cutting heads have poor cooling effect, reducing the service life of the lenses and being unfavorable for the smooth progress of cutting with high-power laser cutting heads.

[0003] After retrieval, the patent with the Chinese patent application number CN201921481934.6 discloses a laser cutting head cooling system and a laser cutting head, including a laser cutting head cooling system. The laser cutting head cooling system includes a main water inlet cooling channel and a main water outlet cooling channel arranged inside the laser cutting head. However, in the above technical solution, since only the internal water cooling pipes of each component are used to cool the inside of each component, the water cooling liquid cannot be quickly dissipated after absorbing heat. Therefore, there is still a problem that the coolant after absorbing heat will flow into the internal water cooling pipes of the next component before being dissipated, resulting in poor cooling and heat dissipation efficiency of the cooling system arranged inside the laser cutting head. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a laser cutting head device with a cooling system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A laser cutting head device with a cooling system includes an upper protective mirror assembly, a collimating mirror assembly, a focusing mirror assembly, a lower protective mirror assembly, a nozzle follow-up assembly and a nozzle. The water inlet and outlet of the outer walls of one side of the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly, the lower protective mirror assembly and the nozzle follow-up assembly are respectively plugged with connecting plugs. The outer wall of the connecting plug is connected with a circulation pipe. The outer wall of the circulation pipe is fixed with a fixing sleeve. The outer wall of the fixing sleeve is fixed with a fixing piece. The outer wall of the fixing piece is fixed with a heat dissipation plate. The outer wall of the heat dissipation plate is fixed with a plurality of heat dissipation strips.

[0007] As a further scheme of the utility model: A group of L-shaped plates are fixed on the outer wall of the heat dissipation plate. A second support plate is fixed on the outer wall of one side of the upper protective mirror assembly. The L-shaped plates are fixed on the outer wall of the second support plate by screws.

[0008] As a further solution of the present utility model: A plurality of mounting plates are fixed on the outer wall of one side of the heat dissipation plate, and heat dissipation fans are fixed on the inner walls of the mounting plates.

[0009] As a further solution of the present utility model: A handle is fixed on the outer wall of the heat dissipation plate.

[0010] As a further solution of the present utility model: A transparent baffle is fixed on the outer wall of one side of the heat dissipation plate.

[0011] As a further solution of the present utility model: A temperature sensor is fixed on the outer wall of one side of the heat dissipation plate.

[0012] As a further solution of the present utility model: A first support plate is fixed on the outer wall of one side of the nozzle follow-up assembly, and a shielding plate is fixed on the outer wall of the bottom of the heat dissipation plate. The shielding plate is slidably connected to the outer wall of the first support plate.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. When the heat-absorbed coolant flows through the circulation pipe, it will dissipate its own heat to the outside through the heat dissipation plate and heat dissipation strips on the outer wall of the circulation pipe, so that the cooled coolant enters the cooling system inside the collimating mirror assembly through the water inlet on the outer wall of the collimating mirror assembly to absorb heat, and then repeat the above steps. Through the multiple circulation pipes installed on one side of the upper protection mirror assembly, collimating mirror assembly, focusing mirror assembly, lower protection mirror assembly and nozzle follow-up assembly, the heat-absorbed coolant can be dissipated in time, so as to improve the heat absorption and cooling effect of the coolant on the inside of multiple components, and effectively improve the working efficiency of the entire cooling system.

[0015] 2. The staff first unscrew the screws fixing the L-shaped plate, and then unscrew the connectors connecting the water inlet and the water outlet one by one, so that the heat dissipation plate and multiple circulation pipes can be removed from one side of the laser cutting head, which is convenient for maintaining and replacing the heat dissipation plate and the circulation pipes.

[0016] 3. The shielding plate can shield and protect the bottom of the heat dissipation plate, improve the overall protection effect of the heat dissipation plate on the circulation pipe and the laser cutting head, and at the same time, the first support plate can support and limit the heat dissipation plate through the shielding plate, improving the overall stability of the heat dissipation plate. Description of the Drawings

[0017] Figure 1 It is the front view structural schematic diagram of a laser cutting head device with a cooling system proposed by the present utility model;

[0018] Figure 2 It is the side view structural schematic diagram of a laser cutting head device with a cooling system proposed by the present utility model;

[0019] Figure 3Schematic diagram of the heat dissipation plate structure of a laser cutting head device with a cooling system proposed by the present utility model.

[0020] In the figure: 1 - upper protective mirror assembly, 2 - collimating mirror assembly, 3 - focusing mirror assembly, 4 - lower protective mirror assembly, 5 - nozzle follow-up assembly, 6 - nozzle, 7 - water outlet, 8 - transparent baffle, 9 - shielding baffle, 10 - first support plate, 11 - heat dissipation plate, 12 - handle, 13 - heat dissipation strip, 14 - second support plate, 15 - L-shaped plate, 16 - water inlet, 17 - mounting plate, 18 - heat dissipation fan, 19 - fixing piece, 20 - fixing sleeve, 21 - connection plug, 22 - circulation pipe. Specific embodiments

[0021] The technical solutions of this patent will be further described in detail below in conjunction with specific embodiments.

[0022] The embodiments of this patent are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0023] Embodiment 1

[0024] A laser cutting head device with a cooling system, as Figures 1 - 3 shown, includes an upper protective mirror assembly 1, a collimating mirror assembly 2, a focusing mirror assembly 3, a lower protective mirror assembly 4, a nozzle follow-up assembly 5 and a nozzle 6. The water inlet 16 and the water outlet 7 on the outer wall of one side of the upper protective mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3, the lower protective mirror assembly 4 and the nozzle follow-up assembly 5 are respectively plugged with a connection plug 21. A circulation pipe 22 is connected to the outer wall of the connection plug 21, and the coolant is conveyed through the pipeline into the water inlet 16 on one side of the upper protective mirror assembly 1. Subsequently, the coolant will enter the cooling system inside the upper protective mirror assembly 1 to absorb heat. After absorbing the heat, the coolant will enter the circulation pipe 22 connected to one side of the upper protective mirror assembly 1 through the water outlet 7 on the outer wall of the upper protective mirror assembly 1;

[0025] Among them, the cooling mechanisms inside the upper protective mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3, the lower protective mirror assembly 4, the nozzle follow-up assembly 5 and the water inlets 16 and water outlets 7 provided on the outer walls are all disclosed in a patent for a laser cutting head cooling system and a laser cutting head with the application number CN201921481934.6, and will not be elaborated here.

[0026] A fixing sleeve 20 is fixed to the outer wall of the circulation pipe 22. A fixing piece 19 is fixed to the outer wall of the fixing sleeve 20. A heat dissipation plate 11 is fixed to the outer wall of the fixing piece 19. A plurality of heat dissipation strips 13 are fixed to the outer wall of the heat dissipation plate 11. When the heat-absorbed coolant flows through the circulation pipe 22, it will dissipate its own heat outward through the heat dissipation plate 11 and the heat dissipation strips 13 on the outer wall of the circulation pipe 22, so that the cooled coolant enters the cooling system inside the collimating mirror assembly 2 through the water inlet 16 on the outer wall of the collimating mirror assembly 2 to absorb heat;

[0027] Repeat the above steps. Through the plurality of circulation pipes 22 installed on one side of the upper protective mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3, the lower protective mirror assembly 4, and the nozzle follower assembly 5, the heat-absorbed coolant can be dissipated in time, thereby improving the heat absorption and cooling effect of the coolant on the inside of the plurality of components, and effectively improving the working efficiency of the entire cooling system.

[0028] As Figures 1 - 3 shown, a set of L-shaped plates 15 are fixed to the outer wall of the heat dissipation plate 11. A second support plate 14 is fixed to the outer wall of one side of the upper protective mirror assembly 1. The L-shaped plates 15 are fixed to the outer wall of the second support plate 14 by screws; The staff first unscrews the screws fixing the L-shaped plates 15, and then unscrews the connectors connected between the water inlet 16 and the water outlet 7 one by one, and the heat dissipation plate 11 and the plurality of circulation pipes 22 can be removed from one side of the laser cutting head, so as to facilitate the maintenance and replacement of the heat dissipation plate 11 and the circulation pipes 22.

[0029] As Figure 2 described, a plurality of mounting plates 17 are fixed to the outer wall of one side of the heat dissipation plate 11. A heat dissipation fan 18 is fixed to the inner wall of the mounting plate 17; When the heat dissipation fan 18 operates, it can quickly dissipate the heat dissipated by the circulation pipe 22, further improving the heat dissipation effect on the coolant inside the circulation pipe 22.

[0030] As Figure 1 shown, a handle 12 is fixed to the outer wall of the heat dissipation plate 11; The staff can conveniently hold the heat dissipation plate 11 and the circulation pipes 22 as a whole through the handle 12, so as to facilitate the loading and unloading of the heat dissipation plate 11 and the circulation pipes 22.

[0031] As Figure 1 shown, a transparent baffle 8 is fixed to the outer wall of one side of the heat dissipation plate 11; The transparent baffle 8 can cooperate with the heat dissipation plate 11 as a whole to shield and protect the circulation pipe 22 and the laser cutting head, improving the service life of the laser cutting head.

[0032] As Figures 1 - 3 shown, a temperature sensor is fixed to the outer wall of one side of the heat dissipation plate 11; The temperature sensor can monitor the temperature on one side of the heat dissipation plate 11 in real time, facilitating the staff to understand the real-time temperature of the laser cutting head during operation.

[0033] Working principle: The coolant is transported through a pipeline into the water inlet 16 on one side of the upper protective mirror assembly 1. Subsequently, the coolant enters the cooling system inside the upper protective mirror assembly 1 to absorb heat. After absorbing the heat, the coolant enters the circulation pipe 22 connected to one side of the upper protective mirror assembly 1 through the water outlet 7 on the outer wall of the upper protective mirror assembly 1. When the heat-absorbed coolant flows through the circulation pipe 22, it dissipates its own heat to the outside through the heat dissipation plate 11 and the heat dissipation strip 13 on the outer wall of the circulation pipe 22, so that the cooled coolant enters the cooling system inside the collimating mirror assembly 2 through the water inlet 16 on the outer wall of the collimating mirror assembly 2 to absorb heat, thus repeating the above steps. Through the multiple circulation pipes 22 installed on one side of the upper protective mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3, the lower protective mirror assembly 4, and the nozzle follow-up assembly 5, the heat-absorbed coolant can be dissipated in time.

[0034] Embodiment 2

[0035] A laser cutting head device with a cooling system, as Figures 2 - 3 shown. The following improvements are made to this embodiment on the basis of Embodiment 1: A first support plate 10 is fixed to the outer wall on one side of the nozzle follow-up assembly 5, and a shielding plate 9 is fixed to the outer wall at the bottom of the heat dissipation plate 11. The shielding plate 9 is slidably connected to the outer wall of the first support plate 10; the shielding plate 9 can shield and protect the bottom of the heat dissipation plate 11, improving the overall protection effect of the heat dissipation plate 11 on the circulation pipe 22 and the laser cutting head. At the same time, the first support plate 10 can support and limit the heat dissipation plate 11 through the shielding plate 9, improving the overall stability of the heat dissipation plate 11.

[0036] Working principle: The shielding plate 9 can shield and protect the bottom of the heat dissipation plate 11, improving the overall protection effect of the heat dissipation plate 11 on the circulation pipe 22 and the laser cutting head. At the same time, the first support plate 10 can support and limit the heat dissipation plate 11 through the shielding plate 9.

[0037] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A laser cutting head device with a cooling system, characterized in that, It includes an upper protective mirror assembly (1), a collimating mirror assembly (2), a focusing mirror assembly (3), a lower protective mirror assembly (4), a nozzle follow-up assembly (5) and a nozzle (6). Water inlets (16) and water outlets (7) on the outer walls of one side of the upper protective mirror assembly (1), the collimating mirror assembly (2), the focusing mirror assembly (3), the lower protective mirror assembly (4) and the nozzle follow-up assembly (5) are respectively plugged with connecting plugs (21). A circulation pipe (22) is connected to the outer wall of the connecting plug (21). A fixing sleeve (20) is fixed on the outer wall of the circulation pipe (22). A fixing piece (19) is fixed on the outer wall of the fixing sleeve (20). A heat dissipation plate (11) is fixed on the outer wall of the fixing piece (19). A plurality of heat dissipation strips (13) are fixed on the outer wall of the heat dissipation plate (11).

2. The laser cutting head device with a cooling system according to claim 1, characterized in that, A group of L-shaped plates (15) are fixed on the outer wall of the heat dissipation plate (11). A second support plate (14) is fixed on the outer wall of one side of the upper protective mirror assembly (1). The L-shaped plates (15) are fixed on the outer wall of the second support plate (14) by screws.

3. The laser cutting head device with a cooling system according to claim 2, characterized in that, A plurality of mounting plates (17) are fixed on the outer wall of one side of the heat dissipation plate (11). A heat dissipation fan (18) is fixed on the inner wall of the mounting plate (17).

4. A laser cutting head device with a cooling system according to claim 3, characterized in that, A handle (12) is fixed on the outer wall of the heat dissipation plate (11).

5. The laser cutting head device with a cooling system according to claim 4, characterized in that, A transparent baffle (8) is fixed on the outer wall of one side of the heat dissipation plate (11).

6. A laser cutting head device with a cooling system according to claim 5, characterized in that, A temperature sensor is fixed on the outer wall of one side of the heat dissipation plate (11).

7. The laser cutting head device with a cooling system according to claim 1, characterized in that, A first support plate (10) is fixed on the outer wall of one side of the nozzle follow-up assembly (5). A shielding plate (9) is fixed on the outer wall of the bottom of the heat dissipation plate (11). The shielding plate (9) is slidably connected to the outer wall of the first support plate (10).

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