A laser nozzle having a cooling mechanism

Abstract

The utility model relates to the field of laser nozzle especially relates to a laser nozzle with cooling mechanism, is equipped with cooling cabin in the middle part of nozzle body, has the heat exchange coil pipe in the coiling of cooling cabin, the outer end of heat exchange coil pipe is installed with fin, and the gap is left between heat exchange coil pipe and cooling cabin inner wall to form the air duct. In the utility model, the surface of heat exchange coil pipe is additionally provided with the expansion fin structure, effectively increases the heat dissipation area, forms the air duct structure with the cooling cabin and the air induction fan, forms the high -efficient convection heat exchange environment to assist heat exchange coil pipe, can realize the quick replacement of air inlet filter assembly through screw simultaneously, ensures the air cleanliness in the air duct, avoids the dust accumulation influence heat dissipation efficiency, guarantees the efficient operation of cooling system.

Description

Technical Field

[0001] This utility model relates to the field of laser nozzle technology, and in particular to a laser nozzle with a cooling mechanism. Background Technology

[0002] To cope with the high heat load of laser nozzles during processing, the industry generally adopts an internal circulating water cooling system as the main cooling solution for laser nozzles. The core of this solution is to embed a closed coolant channel inside the nozzle body or nozzle seat, and drive deionized water or special coolant to circulate in it through an external chiller to remove heat by convection heat transfer.

[0003] However, traditional laser nozzles with cooling mechanisms often have relatively closed cooling channels that are isolated from the outside and lack ventilation, which limits the convective heat transfer capacity of the coolant. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laser nozzle with a cooling mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A laser nozzle with a cooling mechanism includes a nozzle body, a cooling chamber in the middle of the nozzle body, a heat exchange coil coiled inside the cooling chamber, fins installed at the outer end of the heat exchange coil, and a gap between the heat exchange coil and the inner wall of the cooling chamber to form an air duct. The cooling chamber has filter boxes installed on both sides of the upper part and an exhaust fan installed at the bottom. A filter screen is installed inside the filter box via a mounting bracket. An air filter element is installed below the filter screen, and one side of the air filter element is pressed by a push plate.

[0006] In addition, a preferred structure is that an exhaust fan is installed at the bottom center of the nozzle body, and the exhaust fan is connected to the air duct inside the cooling chamber.

[0007] Furthermore, in a preferred configuration, the mounting bracket is embedded inside the filter box, and a pair of screws are screwed onto the outside of the filter box, with one end of each screw extending into the filter box and screwed onto the outside of the mounting bracket.

[0008] Furthermore, in a preferred configuration, one end of the screw extends through the mounting bracket and presses against the outer wall of the push plate.

[0009] In addition, a preferred structure is that the inner wall of the mounting frame is provided with sliding grooves on both sides, a push plate is slidably installed in the sliding grooves, and an air filter is assembled between the push plate and the mounting frame.

[0010] In addition, a preferred structure is that the outer wall of the cooling chamber is equipped with a circulation pipe, which is connected to the heat exchange coil.

[0011] In addition, a preferred structure is that an inclined guide plate is provided on one side of the bottom of the filter box.

[0012] The beneficial effects of this utility model are as follows: In this invention, an extended fin structure is added to the surface of the heat exchange coil to effectively increase the heat dissipation area. Together with the cooling chamber and the exhaust fan, they form an air duct structure, creating an efficient convective heat exchange environment to assist the heat exchange coil. At the same time, the intake filter component can be quickly replaced with screws to ensure the cleanliness of the air in the air duct, avoid dust accumulation that affects heat dissipation efficiency, and ensure the efficient operation of the cooling system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of a laser nozzle with a cooling mechanism proposed in this utility model; Figure 2 This is a cross-sectional view of the internal structure of a laser nozzle with a cooling mechanism proposed in this utility model. Figure 3 This is a schematic diagram of the air duct structure proposed in this utility model; Figure 4 Schematic diagram of the filter box structure proposed in this utility model Figure 1 ; Figure 5 Schematic diagram of the filter box structure proposed in this utility model Figure 2 ; Figure 6 Schematic diagram of the filter box structure proposed in this utility model Figure 3 .

[0014] In the diagram: 1. Nozzle body; 2. Cooling chamber; 3. Filter box; 31. Filter screen; 32. Screw; 4. Circulation pipe; 41. Heat exchange coil; 42. Fin; 5. Exhaust fan; 6. Air duct; 7. Air filter; 8. Push plate; 9. Slide rail; 10. Mounting bracket. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-6 A laser nozzle with a cooling mechanism includes a nozzle body 1, a cooling chamber 2 in the middle of the nozzle body 1, a heat exchange coil 41 coiled inside the cooling chamber 2, fins 42 installed at the outer end of the heat exchange coil 41, and a gap between the heat exchange coil 41 and the inner wall of the cooling chamber 2 to form an air duct 6. The upper two sides of the cooling chamber 2 are equipped with filter boxes 3, and the bottom is equipped with an exhaust fan 5. The filter screen 31 is installed inside the filter box 3 by the mounting bracket 10. The air filter element 7 is set below the filter screen 31. One side of the air filter element 7 is pressed by the push plate 8.

[0017] An exhaust fan 5 is installed at the bottom center of the nozzle body 1. The exhaust fan 5 is connected to the air duct 6 inside the cooling chamber 2. The air outlet of the exhaust fan 6 faces downward. During operation, air flows through the air duct 6 and contacts the heat exchange coil 41 and fins 42 for heat exchange.

[0018] The mounting bracket 10 is embedded inside the filter box 3. A pair of screws 32 are screwed onto the outside of the filter box 3. One end of the screws 32 extends into the inside of the filter box 3 and is screwed onto the outside of the mounting bracket 10.

[0019] One end of screw 32 protrudes from mounting bracket 10 and presses against the outer wall of push plate 8.

[0020] The inner wall of the mounting bracket 10 has grooves 9 on both sides, and a push plate 8 is slidably installed in the grooves 9. An air filter element 7 is assembled between the push plate 8 and the mounting bracket 10.

[0021] The outer wall of the cooling chamber 2 is equipped with a circulation pipe 4, which is connected to the heat exchange coil 41.

[0022] An inclined guide plate is installed on one side of the bottom of filter box 3.

[0023] In this embodiment, after the exhaust fan 5 is started, it forms a directional airflow, which drives the air in the air duct 6 to be continuously discharged to the outside. The outside air enters the air duct 6 through the filter boxes 3 on both sides and comes into full contact with the heat exchange coil 41 and the fins 42 extended on its surface to help improve the heat dissipation efficiency.

[0024] The fins 42 effectively increase the heat exchange surface area and enhance the heat exchange capacity, thereby preventing heat accumulation in the system. The fins 42 significantly expand the heat dissipation area, while the forced airflow can efficiently remove the heat accumulated on the surface, thereby improving the convective heat transfer efficiency.

[0025] When outside air passes through the filter box 3, it first passes through the filter screen 31 to intercept larger particles of impurities, and then passes through the air filter element 7 in the mounting bracket 10 for fine filtration. Its filtration principle is common knowledge in this technical field and will not be explained further. When performing filter element maintenance, simply loosen the screw 32 on the outside of the filter box 3. After the screw 32 is removed from the mounting bracket 10, the constraint on the mounting bracket 10 is released.

[0026] At this point, the mounting bracket 10 can be removed as a whole to replace the air filter 7. The replacement process is a conventional technique in this field and will not be explained further.

[0027] During installation, insert the mounting bracket 10 with the new filter element installed into the filter box 3, tighten the fixing screw 32, the screw 32 is screwed into the mounting bracket 10, and push the front end of the push plate 8 so that it moves forward smoothly along the sliding groove 9 on the inner wall of the mounting bracket, thereby evenly pressing the air filter element 7 to ensure that it remains reliably fixed in the working vibration environment.

[0028] The air filter element 7 can be initially installed in the mounting bracket 10, while the push plate 8 further provides a stable clamping guarantee, effectively preventing the filter element from loosening.

[0029] Among them, the nozzle body 1, namely the laser nozzle body, is a standard functional component in the laser processing equipment. Its assembly method and workflow with the laser host are conventional technical means in this field and will not be described in detail here.

[0030] In addition, it should be noted that the circulation pipe 4 is composed of a delivery pipe and a return pipe, which forms a closed circulation loop through the connection with the heat exchange coil 41 to realize the continuous delivery and return of the cooling medium. The circulation pipe 4 is connected to an external chiller unit. The specific operating principle is common knowledge to those skilled in the art and will not be explained further.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser nozzle with a cooling mechanism, comprising a nozzle body (1), characterized in that, The nozzle body (1) is provided with a cooling chamber (2) in the middle. A heat exchange coil (41) is coiled inside the cooling chamber (2). Fins (42) are installed at the outer end of the heat exchange coil (41). A gap is left between the heat exchange coil (41) and the inner wall of the cooling chamber (2) to form an air duct (6). The cooling chamber (2) is equipped with filter boxes (3) on both sides of the upper part and a fan (5) at the bottom. A filter screen (31) is installed inside the filter box (3) by a mounting bracket (10). An air filter element (7) is provided below the filter screen (31). One side of the air filter element (7) is pressed by a push plate (8).

2. The laser nozzle with a cooling mechanism according to claim 1, wherein, A draft fan (5) is installed at the bottom center of the nozzle body (1), and the draft fan (5) is connected to the air duct (6) inside the cooling chamber (2).

3. The laser nozzle with a cooling mechanism according to claim 1, wherein, The mounting bracket (10) is embedded inside the filter box (3). A pair of screws (32) are screwed onto the outside of the filter box (3). One end of the screws (32) extends into the filter box (3) and is screwed onto the outside of the mounting bracket (10).

4. The laser nozzle with a cooling mechanism according to claim 3, wherein, One end of the screw (32) extends out of the mounting bracket (10) and presses against the outer wall of the push plate (8).

5. The laser nozzle with a cooling mechanism according to claim 4, wherein, The mounting bracket (10) has sliding grooves (9) on both sides of its inner wall. A push plate (8) is slidably installed in the sliding groove (9). An air filter (7) is assembled between the push plate (8) and the mounting bracket (10).

6. The laser nozzle with a cooling mechanism according to claim 1, wherein, The outer wall of the cooling chamber (2) is equipped with a circulation pipe (4), which is connected to the heat exchange coil (41).

7. The laser nozzle with a cooling mechanism according to claim 1, wherein, An inclined guide plate is provided on one side of the bottom of the filter box (3).

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