Cooling device for laser cutting head

Abstract

The utility model discloses a cooling device for a laser cutting head, which comprises a cutting machine head, a laser head is arranged at one end of the cutting machine head, a cooling assembly is sleeved on the laser head, the cooling assembly comprises a cold water box, a plurality of refrigeration sheets are fixedly arranged on the inner wall of the cold water box, and a cylindrical cooling sleeve is arranged in the middle of the cold water box. A spiral water path is formed in the cooling sleeve, a water inlet and a water outlet which are communicated with the water path are formed in the outer wall of the cooling sleeve, and detachable water joints are arranged on the water inlet and the water outlet; on one hand, the cooling jacket is provided with the water joint which is connected with an external water circulation mechanism, so that external injected water circularly flows through a water path to achieve the effect of cooling the laser head; on the other hand, water is injected into the cold water box, then a plurality of refrigeration sheets arranged in the cold water box are used for cooling the water in the cold water box, and then the cooled water enters a water path arranged in the cooling sleeve through two water openings in the cooling sleeve to cool the laser head.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a cooling device for a laser cutting head. Background Art

[0002] Laser cutting refers to the process of emitting a high-power density laser beam from a laser cutting machine to illuminate the material being cut, so that the material is quickly heated to the vaporization temperature, evaporates to form holes, and as the beam moves across the material, the holes continuously form narrow slits, thereby completing the cutting of the material. The laser cutting head is installed on the laser cutting machine and is its important component.

[0003] The heat of the laser cutting head is extremely high during operation. At present, water cooling is generally used to cool the laser cutting head. During water cooling, the laser cutting head is connected to an external water circulation mechanism through a single water inlet and outlet, and the heat on the laser cutting head is taken away by the water circulation flow. Adding an external water circulation mechanism increases the manufacturing cost on the one hand, and increases the floor space on the other hand. Therefore, a cooling device is needed that can be connected to an external water circulation mechanism and can use its own structure to cool the laser cutting head in the absence of an external water circulation mechanism. Utility Model Content

[0004] The purpose of the present invention is to solve the problems in the above-mentioned background technology and to provide a cooling device which can be connected to an external water circulation mechanism and can use its own structure to cool a laser cutting head in the absence of an external water circulation mechanism.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a cooling device for a laser cutting head is provided, comprising a cutting head, a laser head is arranged at one end of the cutting head, a cooling component is arranged on the laser head, the cooling component comprises a cold water box, a plurality of cooling plates are fixedly mounted on the inner wall of the cold water box, a cylindrical cooling jacket is arranged in the middle position of the cold water box, a spiral water path is arranged in the cooling jacket, a water inlet and a water outlet connected with the water path are respectively arranged on the outer wall of the cooling jacket, and a detachable water joint is arranged on the water inlet and the water outlet.

[0006] Furthermore, four refrigeration fins are evenly and fixedly mounted on the inner surfaces of the four vertical side walls of the cold water box.

[0007] Furthermore, the cooling jacket is fixedly installed at the middle position of the cold water box, a thread is arranged on the top of the cooling jacket, and the cooling jacket is screwed to the bottom of the cutting machine head through the thread.

[0008] Furthermore, the two water connectors respectively penetrate the cold water box and are respectively connected to the water inlet and the water outlet through threads; the two water connectors are respectively connected to an external water circulation mechanism.

[0009] Furthermore, the water joint is not installed on the water inlet and the water outlet.

[0010] Furthermore, a water inlet is provided at the top of the cold water box, and a sealing plug is installed on the water inlet.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides two water cooling methods to cool the laser head. On the one hand, a water joint is installed on the cooling jacket to connect the water joint with an external water circulation mechanism, so that the external water is circulated through the water path to achieve the effect of cooling the laser head; on the other hand, without connecting to the external water circulation mechanism, water is injected into the cold water box, and then the water therein is cooled by using multiple cooling plates arranged in the cold water box. Subsequently, the cooled water enters the water path arranged in the cooling jacket through two water inlets on the cooling jacket to cool the laser head.

[0013] 2. The spiral water channel design inside the cooling jacket ensures that the cooling water fully covers the entire cutting head, effectively dissipates heat, and extends the service life of the equipment; the cooling jacket at the bottom of the cutting head is connected by threads to ensure the stability and sealing of the cooling device, avoiding water leakage and equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0017] Figure 4 It is an exploded view of the utility model;

[0018] Figure 5 It is a schematic diagram of the waterway in the utility model;

[0019] Figure 6 It is an exploded view of the utility model;

[0020] Figure 7 It is a cross-sectional view of the utility model.

[0021] In the figure: 1-cutting head, 2-laser head, 3-cold water box, 4-refrigeration sheet, 5-cooling jacket, 6-water joint, 7-sealing plug;

[0022] 31-water inlet, 51-water channel, 52-water inlet, 53-water outlet. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1:

[0026] Combination Figures 1 to 5 A cooling device for a laser cutting head shown in the figure comprises a cutting head 1, a laser head 2 is arranged at one end of the cutting head 1, a cooling assembly is arranged on the laser head 2, the cooling assembly comprises a cold water box 3, a plurality of cooling fins 4 are fixedly mounted on the inner wall of the cold water box 3, a cylindrical cooling jacket 5 is arranged in the middle position of the cold water box 3, a spiral water channel 51 is arranged in the cooling jacket 5, a water inlet 52 and a water outlet 53 connected with the water channel 51 are respectively arranged on the outer wall of the cooling jacket 5, and a detachable water connector 6 is installed on the water inlet 52 and the water outlet 53; wherein, four cooling fins 4 are fixedly mounted on the inner surfaces of the four vertical side walls of the cold water box 3 on average; the cooling jacket 5 is fixedly mounted in the middle position of the cold water box 3, a thread is arranged on the top of the cooling jacket 5, and the cooling jacket 5 is screwed to the bottom of the cutting head 1 through the thread; two water connectors 6 respectively penetrate the cold water box 3 and are respectively connected to the water inlet 52 and the water outlet 53 through the thread; the two water connectors 6 are respectively connected to the external water circulation mechanism;

[0027] When in use, the external water circulation mechanism is connected to the water inlet 52 and the water outlet 53, and the external cooling water circulates in the cooling jacket 5 through the water path 51, thereby achieving the effect of cooling the laser head.

[0028] Example 2

[0029] Combination Figure 4-Figure 7As shown, a cooling device for a laser cutting head comprises a cutting head 1, a laser head 2 is arranged at one end of the cutting head 1, a cooling assembly is sleeved on the laser head 2, the cooling assembly comprises a cold water box 3, a plurality of cooling fins 4 are fixedly mounted on the inner wall of the cold water box 3, a cylindrical cooling jacket 5 is arranged in the middle of the cold water box 3, a spiral water channel 51 is arranged in the cooling jacket 5, a water inlet 52 and a water outlet 53 connected with the water channel 51 are respectively arranged on the outer wall of the cooling jacket 5, and a detachable water joint 6 is installed on the water inlet 52 and the water outlet 53; wherein, four cooling fins 4 are fixedly mounted on the inner surfaces of the four vertical side walls of the cold water box 3 on average; the water joint 6 is not installed on the water inlet 52 and the water outlet 53, a water injection port 31 is arranged on the top of the cold water box 3, and a sealing plug 7 is installed on the water injection port 31;

[0030] When in use, different from the scheme in Example 1, without connecting to an external water circulation mechanism, water is injected into the cold water box 3 through the water inlet 31, and water enters the water path 51 through the water inlet 52 and the water outlet 53. When the water in the cold water box 3 is full, it is sealed with a sealing plug 7, and then the water in the cold water box 3 is cooled by using multiple cooling plates 4. As the temperature in the cold water box 3 decreases, the water temperature in the water path 51 also decreases, thereby achieving the effect of cooling the laser head.

[0031] Embodiment 3:

[0032] Combination Figure 1-Figure 5 As shown, a cooling device for a laser cutting head comprises a cutting head 1, a laser head 2 is arranged at one end of the cutting head 1, a cooling assembly is arranged on the laser head 2, the cooling assembly comprises a cold water box 3, a plurality of cooling fins 4 are fixedly mounted on the inner wall of the cold water box 3, a cylindrical cooling jacket 5 is arranged in the middle of the cold water box 3, a spiral water channel 51 is arranged in the cooling jacket 5, a water inlet 52 and a water outlet 53 connected with the water channel 51 are arranged on the outer wall of the cooling jacket 5, and a detachable water connection is arranged on the water inlet 52 and the water outlet 53 Head 6; wherein, four cooling fins 4 are evenly fixedly installed on the inner surfaces of the four vertical side walls of the cold water box 3; the cooling jacket 5 is fixedly installed in the middle position of the cold water box 3, and a thread is set on the top of the cooling jacket 5, and the cooling jacket 5 is screwed to the bottom of the cutting machine head 1 through the thread; two water joints 6 respectively penetrate the cold water box 3 and are respectively connected to the water inlet 52 and the water outlet 53 through the thread; the two water joints 6 are respectively connected to the external water circulation mechanism; a water injection port 31 is opened on the top of the cold water box 3, and a sealing plug 7 is installed on the water injection port 31;

[0033] When in use, water connectors 6 are installed on the water inlet 52 and the water outlet 53, and the external water circulation mechanism is connected to the water inlet 52 and the water outlet 53 through the water connector 6, so that the external cooling water circulates in the cooling jacket 5 through the water path 51, and then the cold water box 3 is filled with water through the water filling port 31. When the water in the cold water box 3 is full, it is sealed with a sealing plug 7, and then the water in the cold water box 3 is cooled by using multiple refrigeration plates 4. As the temperature in the cold water box 3 decreases, on the one hand, the water entering the cold water box 3 can be protected from cold temperature when the external water circulation mechanism transports cold water. On the other hand, when the temperature of the cold water transported by the external water circulation mechanism is higher than the water temperature in the cold water box 3, the cold water in the cold water box 3 can level the water temperature in the water path 51 in the cooling jacket 5.

[0034] The cooling sheet 4 is a semiconductor cooling sheet, which is usually composed of multiple semiconductor material sheets, which are staggered and connected by electric current. When the current passes through the cooling sheet, one side absorbs heat to cool it, while the other side releases heat to heat it up. By controlling the direction and size of the current, the cooling effect of the cooling sheet can be adjusted. Semiconductor cooling sheets have the advantages of fast response, small size, no vibration, no noise, etc., and are therefore widely used in the cooling needs of electronic equipment, medical equipment, lasers, optoelectronic devices and other fields.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cooling device for a laser cutting head, comprising a cutting head (1), wherein one end of the cutting head (1) is provided with a laser head (2), characterized in that: A cooling assembly is sleeved on the laser head (2), the cooling assembly comprising a cold water box (3), a plurality of cooling fins (4) are fixedly mounted on the inner wall of the cold water box (3), a cylindrical cooling jacket (5) is arranged in the middle of the cold water box (3), a spiral water path (51) is arranged in the cooling jacket (5), a water inlet (52) and a water outlet (53) which are in communication with the water path (51) are respectively arranged on the outer wall of the cooling jacket (5), and a detachable water joint (6) is arranged on the water inlet (52) and the water outlet (53).

2. The cooling device for a laser cutting head according to claim 1, characterized in that: Four refrigeration fins (4) are evenly and fixedly mounted on the inner surfaces of the four vertical side walls of the cold water box (3).

3. The cooling device for a laser cutting head according to claim 2, characterized in that: The cooling jacket (5) is fixedly mounted at the middle position of the cold water box (3); a thread is arranged on the top of the cooling jacket (5); and the cooling jacket (5) is screwed to the bottom of the cutting machine head (1) via the thread.

4. The cooling device for a laser cutting head according to claim 3, characterized in that: The two water connectors (6) respectively penetrate the cold water box (3) and are respectively connected to the water inlet (52) and the water outlet (53) via threads; the two water connectors (6) are respectively connected to an external water circulation mechanism.

5. The cooling device for a laser cutting head according to claim 4, characterized in that: The water joint (6) is not installed on the water inlet (52) and the water outlet (53).

6. The cooling device for a laser cutting head according to claim 5, characterized in that: A water inlet (31) is provided at the top of the cold water box (3), and a sealing plug (7) is installed on the water inlet (31).

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