Laser cutting device with cooling function

Abstract

The utility model belongs to the technical field of laser cutting, and discloses a laser cutting device with a cooling function, which comprises a laser cutting head. The laser cutting head is fixedly sleeved with a plurality of annular discs, and gaps are reserved between the adjacent annular discs. A sleeve coaxially arranged is arranged on the outer side of the laser cutting head, the outer side peripheral walls of the annular discs are fixed to the inner side peripheral wall of the sleeve, and an annular cavity is formed between every two adjacent annular discs and the inner side peripheral wall of the sleeve. A pair of symmetrically placed partition plates is fixed between every two adjacent circular ring discs, and the annular cavity is divided into two symmetrically placed cooling cavity channels by the pair of partition plates between every two adjacent circular ring discs; a plurality of layers of cooling cavity channels are formed through the arrangement of the annular discs, the height difference between the upper end face and the lower end face of each cooling cavity channel is effectively reduced, the temperature difference between cooling media at the upper ends and the lower ends of the cooling cavity channels is effectively reduced, cooling and heat dissipation uniformity is improved, meanwhile, the flow speed of the cooling media in the cooling cavity channels can be increased, and the cooling and heat dissipation effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser cutting technical field, concretely relates to a laser cutting device with cooling function. BACKGROUND

[0002] Laser cutting machine is the laser that emits from laser, focus into high power density laser beam through optical path system, laser beam irradiation to workpiece surface, make the workpiece material of irradiation rapid melt, vaporization, burn and scorch or reach the point, simultaneously with the high -speed airflow of the same axis of light beam and blow off molten material, thereby realize the workpiece is cut, laser cutting machine has cutting speed high, cutting precision is high, cutting quality is good, avoids the tool wear and tear, safe and pollution-free and so on The advantage, but because the machine head of laser cutting head is easy to produce a large amount of heat when working, if the heat dissipation of laser cutting head is not timely, it is easy to cause the damage of spare part, reduce the service life of laser cutting equipment;

[0003] Such as the patent number CN202220029129.5, specifically a kind of heat sink of laser cutting machine, including laser cutting head and the cooling mechanism installed in the outside of laser cutting head, the top end side of cooling mechanism is fixedly connected with water outlet pipe, the bottom of cooling mechanism is fixedly connected with water inlet pipe, the end of water outlet pipe away from cooling mechanism is communicated with heat exchange mechanism, the end of water inlet pipe away from cooling mechanism is fixed with circulating pump, the water outlet end of circulating pump is fixed with the water guide pipe fixedly communicated with the bottom of heat exchange mechanism, the heat exchange mechanism includes liquid storage box, one side of liquid storage box is installed with refrigeration piece, the utility model can absorb the heat dissipated by laser cutting head, then realize the heat dissipation cooling purpose of laser cutting head, circulating pump re-outputs cooling liquid after cooling to cooling mechanism to carry out circulating cooling cooling work purpose.

[0004] The above-mentioned patent injects cooling liquid into the sleeve through the circulating pump and the water inlet pipe, and the cooling liquid is discharged from the sleeve through the water outlet pipe at the upper end of the sleeve to realize the cooling of the laser cutting head. However, during the upward movement of the cooling liquid from the bottom of the sleeve, the cooling liquid will absorb heat and increase in temperature, resulting in a large temperature difference between the upper and lower ends of the sleeve, which can easily cause poor cooling effect on the upper end of the laser cutting head. In addition, due to the volume of the sleeve and the arrangement of the spiral blades, the flow rate of the cooling liquid in the sleeve is reduced, which weakens the cooling effect and cannot effectively remove heat, thereby affecting the heat dissipation efficiency of the equipment. Therefore, the existing technology has the problem of poor cooling and heat dissipation effect of the laser cutting head. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a laser cutting device with cooling function, which solves the problem of poor cooling and heat dissipation effect of the laser cutting head in the prior art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A laser cutting device with cooling function, including a laser cutting head;

[0008] Multiple annular discs are fixedly mounted on the laser cutting head, with gaps between adjacent annular discs;

[0009] The laser cutting head is provided with a sleeve placed on the same axis on the outside. The outer peripheral wall of the annular disk is fixed to the inner peripheral wall of the sleeve. An annular cavity is formed between two adjacent annular disks and the inner peripheral wall of the sleeve.

[0010] A pair of symmetrically placed partitions are fixed between each pair of adjacent annular disks, and the pair of partitions between the two adjacent annular disks divides the annular cavity into two symmetrically placed cooling channels.

[0011] The cooling ducts are each connected to an inlet pipe for the flow of cooling medium and an outlet pipe for the flow of cooling medium, and both the inlet and outlet pipes are connected to the cooling ducts.

[0012] The principle and effect of the above technical solution are as follows:

[0013] When the laser cutting head is working, cooling medium is continuously injected into the cooling cavity through the water inlet pipe. After the cooling medium enters the cooling cavity and comes into contact with the outer peripheral wall of the laser cutting head, it absorbs the heat emitted by the laser cutting head. Then the cooling medium flows out from the water outlet pipe, thereby dissipating heat and cooling the laser cutting head. At the same time, through the arrangement of multiple annular disks and sleeves, multiple layers of cooling cavities are formed on the outer side of the laser cutting head, effectively reducing the height difference between the upper and lower end faces of each cooling cavity. This not only effectively reduces the temperature difference of the cooling medium at the upper and lower ends of the cooling cavity, improving the uniformity of cooling and heat dissipation, but also increases the flow rate of the cooling medium in the cooling cavity, effectively improving the cooling and heat dissipation effect.

[0014] The inlet and outlet pipes on any cooling chamber are located near the two partitions, with the inlet pipe located near the lower end of the cooling chamber and the outlet pipe located near the upper end of the cooling chamber.

[0015] Two liquid storage tanks are symmetrically placed on the outside of the sleeve with respect to the partition. The inlet and outlet pipes on the cooling cavity on either side of the partition extend into the corresponding liquid storage tank. The liquid storage tanks are filled with cooling medium. A water pump is placed in the cooling medium of each liquid storage tank. The output end of the water pump is connected to an output pipe. The output pipe is connected to a multi-port connector. The output pipe is connected to each inlet pipe in the corresponding liquid storage tank through the multi-port connector.

[0016] The end of the water outlet pipe away from the cooling cavity is located above the liquid level of the cooling medium in the storage tank;

[0017] A filter screen is fixedly connected to the end of the water outlet pipe away from the cooling cavity.

[0018] Each liquid storage tank is equipped with a drain hole, and each drain hole is detachably connected with a plug.

[0019] Both the partition and the circular disc are made of copper.

[0020] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0021] Fixed connection: refers to a connection method in which two or more components are tightly connected together by welding, gluing or other methods, and cannot be easily separated.

[0022] Detachable connection: refers to a well-designed connection method between two or more components, which allows them to be quickly and easily connected and disassembled.

[0023] The beneficial effects of this utility model are:

[0024] 1. When the laser cutting head is working, cooling medium can be continuously injected into the cooling cavity through the water inlet pipe. After the cooling medium enters the cooling cavity and comes into contact with the outer peripheral wall of the laser cutting head, it absorbs the heat emitted by the laser cutting head. Then the cooling medium flows out from the water outlet pipe, thereby dissipating heat and cooling the laser cutting head.

[0025] Meanwhile, by setting up multiple annular disks and using a sleeve, a multi-layer cooling cavity is formed on the outside of the laser cutting head, which effectively reduces the height difference between the upper and lower ends of each cooling cavity. This not only effectively reduces the temperature difference of the cooling medium at the upper and lower ends of the cooling cavity and improves the uniformity of cooling and heat dissipation, but also increases the flow rate of the cooling medium in the cooling cavity, effectively improving the cooling and heat dissipation effect.

[0026] 2. The combination of the liquid storage tank, water pump, output pipe, multi-port connector, and inlet pipe facilitates the injection of cooling medium into the cooling cavity. In conjunction with the outlet pipe, the cooling medium can be returned to achieve a circulating cooling effect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of part of the structure of the water pump and sleeve of this utility model;

[0030] Figure 3 This is a schematic diagram of a portion of the water outlet pipe of this utility model;

[0031] Figure 4 This is a partial structural diagram of the partition of this utility model. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] This combination Figures 1 to 4 This describes an embodiment of a laser cutting device with a cooling function; specifically, the laser cutting device with a cooling function is constructed as a split structure, which includes components such as a laser cutting head 100, an annular disk 200, a sleeve 300, a partition 400, a cooling cavity 500, a water inlet pipe 600, and a water outlet pipe 601. When the laser cutting head 100 is working, cooling medium can be continuously injected into the cooling cavity 500 through the water inlet pipe 600. After the cooling medium enters the cooling cavity 500 and contacts the outer peripheral wall of the laser cutting head 100, it dissipates heat from the laser cutting head 100. The heat generated is absorbed, and then the cooling medium flows out from the outlet pipe 601 to dissipate heat and cool the laser cutting head 100. At the same time, through the arrangement of multiple annular disks 200 and the sleeve 300, a multi-layer cooling cavity 500 is formed on the outside of the laser cutting head 100, and the height difference between the upper and lower end faces of each cooling cavity 500 is effectively reduced. This not only effectively reduces the temperature difference of the cooling medium at the upper and lower ends of the cooling cavity 500 and improves the uniformity of cooling heat dissipation, but also increases the flow rate of the cooling medium in the cooling cavity 500, effectively improving the cooling heat dissipation effect.

[0034] Please refer to Figures 1 to 4 A laser cutting device with cooling function, including a laser cutting head 100;

[0035] Multiple annular disks 200 are fixedly sleeved on the laser cutting head 100, with gaps between adjacent annular disks 200;

[0036] A sleeve 300 is placed coaxially on the outside of the laser cutting head 100. The outer peripheral wall of the annular disk 200 is fixed to the inner peripheral wall of the sleeve 300. An annular cavity is formed between two adjacent annular disks 200 and the inner peripheral wall of the sleeve 300.

[0037] A pair of symmetrically placed partitions 400 are fixed between each of the two adjacent annular disks 200. The pair of partitions 400 between the two adjacent annular disks 200 divides the annular cavity into two symmetrically placed cooling channels 500.

[0038] The cooling cavity 500 is connected to an inlet pipe 600 for the inflow of cooling medium and an outlet pipe 601 for the outflow of cooling medium. The inlet pipe 600 and the outlet pipe 601 are both connected to the cooling cavity 500.

[0039] When the laser cutting head 100 is working, cooling medium can be continuously injected into the cooling cavity 500 through the water inlet pipe 600. After the cooling medium enters the cooling cavity 500 and comes into contact with the outer peripheral wall of the laser cutting head 100, it absorbs the heat emitted by the laser cutting head 100. Then the cooling medium flows out from the water outlet pipe 601, thereby dissipating heat and cooling the laser cutting head 100.

[0040] Meanwhile, by setting up multiple annular disks 200 and cooperating with the sleeve 300, a multi-layer cooling cavity 500 is formed on the outside of the laser cutting head 100, and the height difference between the upper and lower end faces of each cooling cavity 500 is effectively reduced. This not only effectively reduces the temperature difference of the cooling medium at the upper and lower ends of the cooling cavity 500 and improves the uniformity of cooling and heat dissipation, but also increases the flow rate of the cooling medium in the cooling cavity 500, effectively improving the cooling and heat dissipation effect.

[0041] Preferably, the cooling medium can be water or coolant.

[0042] The inlet pipe 600 and outlet pipe 601 on any cooling cavity 500 are located near the two partitions 400 respectively. The inlet pipe 600 is located near the lower end of the cooling cavity 500, and the outlet pipe 601 is located near the upper end of the cooling cavity 500. This allows the cooling medium to flow through the cooling cavity 500 better and improves the cooling and heat dissipation effect.

[0043] To facilitate the injection of cooling medium, two liquid storage tanks 700 are symmetrically placed on the outside of the sleeve 300 with respect to the partition 400. The inlet pipe 600 and outlet pipe 601 on the cooling cavity 500 on either side of the partition 400 extend into the corresponding liquid storage tank 700. Each liquid storage tank 700 is filled with cooling medium, and a water pump 800 is placed inside the cooling medium in each liquid storage tank 700. The output end of the water pump 800 is connected to an output pipe 801, which is connected to a multi-port connector 802. The output pipe 801 is connected to each inlet pipe 600 in the corresponding liquid storage tank 700 through the multi-port connector 802. By turning on the water pump 800, the water pump 800 can draw out the cooling medium and inject it into the cooling cavity 500 through the output pipe 801, the multi-port connector, and the inlet pipe 600. With the help of the outlet pipe 601, the cooling medium can be refluxed to achieve a circulating cooling effect.

[0044] To ensure the effective discharge of cooling medium from the outlet pipe 601, the end of the outlet pipe 601 away from the cooling cavity 500 is positioned above the liquid surface of the cooling medium in the storage tank 700; this prevents the cooling medium in the storage tank 700 from submerging the outlet pipe 601 and causing the cooling medium in the cooling cavity 500 to flow out.

[0045] A filter screen 6011 is fixedly connected to the end of the water outlet pipe 601 away from the cooling cavity 500. When the cooling medium drained from the water outlet pipe 601 passes through the filter screen 6011, it can be divided into multiple fine streams, which effectively increases the contact area between the cooling medium discharged from the water outlet pipe 601 and the air, and can dissipate heat on the cooling medium before it flows into the liquid storage tank 700.

[0046] Each liquid storage tank 700 is provided with a drain hole, and each drain hole is detachably connected with a plug 701; the cooling medium in the liquid storage tank 700 can be replenished or replaced by opening the plug 701.

[0047] Preferably, the plug 701 is threadedly connected to the drain hole.

[0048] Both the partition 400 and the annular disk 200 are made of copper. Copper has good thermal conductivity, and the heat on the laser cutting head 100 can be released to the outside through the partition 400 and the annular disk 200. Through the contact between the partition 400 and the annular disk 200 and the cooling medium, the effective heat dissipation area can be increased, and the heat dissipation and cooling effect can be improved.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A laser cutting device with a cooling function, comprising a laser cutting head (100), characterized in that: Multiple annular discs (200) are fixedly sleeved on the laser cutting head (100), with gaps between adjacent annular discs (200); A sleeve (300) is placed coaxially on the outside of the laser cutting head (100). The outer peripheral wall of the annular disk (200) is fixed to the inner peripheral wall of the sleeve (300). An annular cavity is formed between two adjacent annular disks (200) and the inner peripheral wall of the sleeve (300). A pair of symmetrically placed partitions (400) are fixed between each of the two adjacent annular disks (200). The pair of partitions (400) between the two adjacent annular disks (200) divides the annular cavity into two symmetrically placed cooling channels (500). The cooling cavity (500) is connected to an inlet pipe (600) for the inflow of cooling medium and an outlet pipe (601) for the outflow of cooling medium. The inlet pipe (600) and the outlet pipe (601) are both connected to the cooling cavity (500).

2. The laser cutting device with cooling function according to claim 1, characterized in that, The inlet pipe (600) and outlet pipe (601) on any cooling chamber (500) are located near the two partitions (400), respectively. The inlet pipe (600) is located near the lower end of the cooling chamber (500), and the outlet pipe (601) is located near the upper end of the cooling chamber (500).

3. The laser cutting device with cooling function according to claim 2, characterized in that, Two liquid storage tanks (700) are symmetrically placed on the outside of the sleeve (300) with respect to the partition (400). The inlet pipe (600) and outlet pipe (601) on the cooling cavity (500) on either side of the partition (400) extend into the corresponding liquid storage tank (700). The liquid storage tanks (700) are filled with cooling medium. A water pump (800) is placed in the cooling medium of each liquid storage tank (700). The output end of the water pump (800) is connected to an output pipe (801). The output pipe (801) is connected to a multi-port connector (802). The output pipe (801) is connected to each inlet pipe (600) in the corresponding liquid storage tank (700) through the multi-port connector (802).

4. The laser cutting device with cooling function according to claim 3, characterized in that, The end of the water outlet pipe (601) away from the cooling cavity (500) is located above the liquid surface of the cooling medium in the liquid storage tank (700).

5. The laser cutting device with cooling function according to claim 4, characterized in that, A filter screen (6011) is fixedly connected to the end of the water outlet pipe (601) away from the cooling cavity (500).

6. The laser cutting device with cooling function according to claim 5, characterized in that, Each liquid storage tank (700) is provided with a drain hole, and each drain hole is detachably connected with a plug (701).

7. The laser cutting device with cooling function according to claim 6, characterized in that, Both the partition (400) and the annular disk (200) are made of copper.

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