Cooling mechanism for laser cutting

Abstract

The utility model discloses a laser cutting cooling mechanism which comprises a laser head, a laser head protection sleeve is arranged on the laser head, a laser head fixing piece is arranged at the upper end of the laser head protection sleeve, a Z-direction moving device is fixedly connected behind the laser head fixing piece, and the laser head protection sleeve comprises a sleeve body. A plurality of annular cavities are uniformly and equidistantly arranged on the cylinder body up and down, a liquid inlet is formed in one side end of each annular cavity, a liquid outlet is formed in the other side end of each annular cavity, and air outlet holes are symmetrically formed in the cylinder body and penetrate through the annular cavities; the cooling mechanism has the advantages that by arranging the multiple evenly-distributed annular cavities, the cooling mechanism can achieve rapid circulation of liquid in the laser cutting process, and it is guaranteed that the laser head is always kept within the optimal working temperature range. The efficient cooling mode effectively prevents the laser head from being overheated, so that the risks of performance reduction and potential damage are reduced, and the service life of the laser head is prolonged.

Description

Technical Field

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

[0002] Laser cutting technology, an advanced processing method in modern manufacturing, is widely used for cutting and processing a variety of materials, including metals, plastics, wood, and composite materials, due to its high efficiency, precision, and flexibility. With the continuous advancement of laser technology, the performance and application range of laser cutting equipment are also continuously improving. However, the high temperatures generated during the laser cutting process pose a severe challenge to the performance and lifespan of the laser head and its surrounding components. Therefore, the design and application of cooling systems have become a key factor in improving the stability and lifespan of laser cutting equipment. During the laser cutting process, the laser head and its accessories generate a large amount of heat due to the continuous high energy output. Excessive operating temperatures not only lead to reduced laser head performance, such as poor beam quality and reduced cutting accuracy, but can also cause equipment failure and damage. Furthermore, overheating can affect the stability and lifespan of the laser's optical elements and other components. Therefore, a reasonable and effective cooling system is an important component to ensure the proper operation of laser cutting equipment. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that the traditional method of removing heat by air flow through devices such as fans is simple, but the cooling effect is limited and it is difficult to meet the requirements of high-power laser cutting.

[0004] The present invention achieves the above-mentioned object through the following technical solutions: a cooling mechanism for laser cutting, comprising a laser head, a laser head protective sleeve disposed on the laser head, a laser head fixing member disposed at the upper end of the laser protective sleeve, a Z-axis moving device fixedly connected to the rear of the laser head fixing member, the laser head protective sleeve comprising a cylinder, a plurality of annular cavities evenly and equidistantly arranged above and below the cylinder, a liquid inlet disposed at one end of the annular cavity, a liquid outlet disposed at the other end of the annular cavity, and air outlets symmetrically disposed on the cylinder through the annular cavity. The laser head protective sleeve can effectively prevent direct damage to the laser head from the external environment, such as dust, moisture, or mechanical impact, thereby extending the service life of the laser head. The annular cavity is designed as a plurality of evenly distributed cavities, and liquid can circulate through the liquid inlet and outlet during laser operation to help control the operating temperature of the laser head. This cooling system adopts a multiple cavity circulation system, which can ensure that the liquid in the cavity is replaced quickly, thereby achieving a better cooling effect, and can also prevent the performance degradation or damage of the laser head due to overheating.

[0005] Furthermore, the Z-direction movement device includes a locking base plate, a motor fixture disposed at the upper end of which is fixedly connected to a rotary motor, a screw disposed at the output end of the rotary motor, a laser head fixing block fixedly connected to the screw, and a laser head protection block disposed on the laser head fixing block. Slide rails are fixedly connected to both ends of one side of the locking base plate. The rotary motor drives the screw to rotate, and the screw's threaded structure converts rotational motion into linear motion, enabling precise and smooth movement of the laser head fixing block in the Z direction. This design facilitates high-precision laser processing tasks.

[0006] Furthermore, the slide rail is assembled and connected to the laser head fixing block, and the laser head fixing block is fixedly connected to the laser head protection sleeve.

[0007] Furthermore, the laser protection block is designed with a curved surface to support the laser head fixing part.

[0008] Furthermore, an air valve is provided on the top of each of the air outlet holes.

[0009] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0010] 1. By setting up multiple evenly distributed annular cavities, the cooling mechanism can achieve rapid circulation of liquid during the laser cutting process, ensuring that the laser head always remains in the optimal operating temperature range. This efficient cooling method effectively prevents the laser head from overheating, thereby reducing the risk of performance degradation and potential damage, and extending the service life of the laser head;

[0011] 2. The Z-axis moving device achieves precise linear motion through a motor-driven screw rod. Combined with the guide rail design, the laser head fixed block can move up and down smoothly and accurately. This design improves the accuracy and flexibility of laser processing, can meet various complex cutting requirements, and improves production efficiency and processing quality.

[0012] 3. The laser head protection sleeve and protection block provide multi-level protection, which not only prevents the laser head from being damaged by the external environment (such as dust and mechanical shock), but also the air valve design on the top of the air outlet ensures the safe discharge of gas. This safety design effectively reduces the probability of equipment failure during long-term operation and improves the reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the present utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the laser head protection sleeve of the present utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of another angle A of the laser head protection sleeve of the present invention;

[0016] Figure 4 This is a schematic diagram of the Z-direction moving device of the present invention.

[0017] In the figure: 1-laser head, 2-laser head protection sleeve, 3-laser head fixing part, 4-Z-moving device, 21-cylinder, 22-annular cavity, 23-liquid inlet, 24-liquid outlet, 25-air outlet, 41-locking base plate, 42-motor fixing part, 43-rotating motor, 44-screw, 45-laser head fixing block, 46-laser head protection block, 47-slide rail. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Combine Figures 1 to 4 As shown, a cooling mechanism for laser cutting includes a laser head 1, a laser head protection sleeve 2 is provided on the laser head 1, a laser head fixing part 3 is provided on the upper end of the laser head protection sleeve 2, a Z-direction moving device 4 is fixedly connected to the rear of the laser head fixing part 3, and the laser head protection sleeve 2 includes a cylinder 21, and a plurality of annular cavities 22 are evenly and equidistantly arranged on the upper and lower parts of the cylinder 21, a liquid inlet 23 is provided on one side end of the annular cavity 22, and a liquid outlet 24 is provided on the other side end of the annular cavity 22, and air outlet holes 25 are symmetrically provided on the cylinder 21 and through the annular cavity 22. The laser head protection sleeve can effectively prevent direct damage to the laser head by the external environment, such as dust, moisture or mechanical impact, thereby extending the service life of the laser head. The annular cavity is designed as a plurality of evenly distributed cavities, and liquid can be circulated through the liquid inlet and outlet during laser operation to help control the working temperature of the laser head. This cooling system uses multiple cavity circulations to ensure fast cavity liquid replacement, thereby achieving better cooling effects. It can also prevent the laser head from performance degradation or damage due to overheating.

[0020] The Z-direction moving device 4 includes a locking base plate 41, a motor fixing part 42 is provided at the upper end of the locking base plate 41, a rotating motor 43 is fixedly connected to the upper end of the motor fixing part 42, a screw 44 is provided at the output end of the rotating motor 43, a laser head fixing block 45 is fixedly connected to the screw 44, and a laser head protection block 46 is provided on the laser head fixing block 45. Slide rails 47 are fixedly connected to both ends of one side of the locking base plate 41. The rotating motor drives the screw to rotate, and the screw thread structure can convert the rotational motion into linear motion, so that the laser head fixing block can achieve precise and smooth movement in the Z direction. This design facilitates high-precision laser processing tasks; the slide rail 47 is assembled and connected to the laser head fixing block 45, and the laser head fixing block 45 is fixedly connected to the laser head protection sleeve 2; the laser head protection block 46 is designed with an arc surface to support the laser head fixing part 3; and the top of each of the air outlets 25 is provided with an air valve.

[0021] Working principle: The laser head 1 is arranged inside the laser head protection sleeve 2. The protection tube is composed of a cylinder 21, and a plurality of annular cavities 22 are evenly arranged inside the cylinder. These cavities are arranged up and down to form a plurality of independent cooling areas. During the laser cutting process, the heat generated by the laser head needs to be quickly dissipated to prevent overheating. Through the liquid inlet 23, a coolant such as water or a special coolant is introduced into the annular cavity 22. The coolant circulates in the cavity and is discharged through the liquid outlet 24. This design allows the coolant to be evenly distributed in multiple cavities, thereby providing efficient heat transfer. During the cutting process, the design of the annular cavity ensures a fast liquid replacement speed, so that the coolant can quickly absorb the heat of the laser head and keep the operating temperature of the laser head within a safe range. The air pressure inside the cavity can be adjusted by the air valve on the air outlet 25 to ensure smooth liquid circulation and prevent the formation of bubbles. The Z-axis moving device 4 consists of a locking base plate 41, a motor fixing part 42, a rotating motor 43 and a screw 44. The rotary motor converts rotational motion into linear motion via a lead screw, thereby driving the laser head fixing block 45 in the Z direction. The laser head fixing block 45, in conjunction with the slide rail 47, enables smooth and precise movement along the Z axis. The laser head protection block 46 provides support for the laser head fixing member 3, ensuring the laser head remains stable during movement and preventing loss of accuracy due to vibration or displacement.

[0022] It will be apparent 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 embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cooling mechanism for laser cutting, comprising a laser head (1), characterized in that: The laser head (1) is provided with a laser head protection sleeve (2), the upper end of the laser head protection sleeve (2) is provided with a laser head fixing part (3), the rear of the laser head fixing part (3) is fixedly connected with a Z-direction moving device (4), the laser head protection sleeve (2) comprises a cylinder (21), a plurality of annular cavities (22) are arranged evenly and equidistantly above and below the cylinder (21), a liquid inlet (23) is provided at one end of the annular cavity (22), a liquid outlet (24) is provided at the other end of the annular cavity (22), and air outlet holes (25) are symmetrically provided on the cylinder (21) and pass through the annular cavity (22).

2. A cooling mechanism for laser cutting according to claim 1, characterized in that: The Z-direction moving device (4) comprises a locking base plate (41), a motor fixing member (42) is provided at the upper end of the locking base plate (41), a rotating motor (43) is fixedly connected to the upper end of the motor fixing member (42), a screw rod (44) is provided at the output end of the rotating motor (43), a laser head fixing block (45) is fixedly connected to the screw rod (44), a laser head protection block (46) is provided on the laser head fixing block (45), and a slide rail (47) is fixedly connected to both ends of one side of the locking base plate (41).

3. The cooling mechanism for laser cutting according to claim 2, characterized in that: The slide rail (47) is assembled and connected to the laser head fixing block (45), and the laser head fixing block (45) is fixedly connected to the laser head protection sleeve (2).

4. The cooling mechanism for laser cutting according to claim 3, characterized in that: The laser head protection block (46) is designed as a curved surface and is used to support the laser head fixing part (3).

5. The cooling mechanism for laser cutting according to claim 4, characterized in that: The top of each of the air outlet holes (25) is provided with an air valve.

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