Heat dissipation nozzle for laser cutting head

Abstract

The utility model relates to the field of laser cutting machines, and discloses a radiating nozzle for a laser cutting head, which comprises a nozzle body, a plurality of radiating fins are uniformly arranged on the outer wall of the nozzle body in the circumferential direction, and a containing groove for placing the radiating fins is arranged on the outer wall of the nozzle body. A protection part used for reducing the probability that dust is attached to the cooling fins is arranged on the outer wall of the nozzle body and comprises a protection cover arranged on the nozzle body. A sliding component and a limiting component are arranged between the protective cover and the nozzle body, the sliding component facilitates sliding of the protective cover on the nozzle body to be away from the cooling fins or covers the cooling fins, and the limiting component limits the position of the protective cover when the cooling fins are covered with the protective cover. And the arranged limiting component can limit the position of the protective cover when the protective cover covers the cooling fins, so that the protective cover keeps a state of covering the cooling fins, and the probability that dust is attached to the cooling fins is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting machine field especially relates to a heat dissipation nozzle for laser cutting head. BACKGROUND

[0002] The patent with the announcement number CN221064809U discloses an auxiliary airflow nozzle of sheet metal laser cutting machine, including nozzle core, the sidewall of nozzle core is fixedly provided with heat dissipation ring, the bottom of nozzle core is equipped with the protection board, the heat dissipation ring and the protection board between annularly are equipped with multiple heat dissipation plates, the heat dissipation plate is right-angled triangle structure, the nozzle core is equipped with airflow cavity, the upper portion of airflow cavity is cylindrical, the lower portion of airflow cavity is conical.

[0003] The heat dissipation ring and the heat dissipation plate arranged on the outer wall of the nozzle core in the above structure can reduce the temperature of the nozzle core during use, thereby reducing the probability of overheating of the nozzle core during use, but the heat dissipation plate and the heat dissipation ring are exposed to the outer wall of the nozzle core for a long time, and after long-term use of the nozzle core, dust and other substances are easily attached to the surface of the heat dissipation plate and the heat dissipation ring arranged on the outer wall, thereby affecting the heat dissipation effect of the two. UTILITY MODEL CONTENT

[0004] The utility model discloses to the surface of the heat dissipation plate of prior art is easily attached to a large amount of dust and other substances after long-term use of the nozzle core, leading to the heat dissipation effect of the heat dissipation plate reduces the shortcoming, provides a heat dissipation nozzle for laser cutting head.

[0005] In order to solve the above technical problems, the utility model solves through the following technical schemes:

[0006] A heat dissipation nozzle for laser cutting head, including nozzle body, the outer wall of nozzle body is circumferentially equipped with a plurality of heat dissipation fins, the outer wall of nozzle body is provided with the accommodation groove of placing heat dissipation fin, the outer wall of nozzle body is provided with the protection component for reducing the probability of dust attached on heat dissipation fin, the protection component includes the protection cover set up on nozzle body, the sliding component that the protection cover and nozzle body between are provided with convenient protection cover on nozzle body and slide away from heat dissipation fin or cover on heat dissipation fin and when the position of protection cover is limited when the limiting component of protection cover cover outside heat dissipation fin.

[0007] The protective cover arranged on the nozzle body can be moved on the nozzle body through the sliding component, so that the protective cover can be moved to a state of covering outside the heat dissipation fin, thereby protecting the heat dissipation fin, reducing the probability of dust adhering to the heat dissipation fin, and making the heat dissipation effect of the heat dissipation fin on the nozzle body more stable. The limiting component can limit the position of the protective cover when the protective cover is moved to cover outside the heat dissipation fin, so that the protective cover remains in the state of covering outside the heat dissipation fin. When the heat dissipation fin needs to be replaced after long-term use, the protective cover can also be moved after the limiting component is released, so that the protective cover is away from the heat dissipation fin, and at this time, the heat dissipation fin can be detached from the nozzle body for replacement.

[0008] Preferably, the sliding component comprises a sliding groove with an open end arranged on the outer wall of the nozzle body and a sliding block arranged on the inner wall of the protective cover and capable of being inserted into the sliding groove from the open end of the sliding groove and sliding in the sliding groove. The open end of the sliding groove is provided with an anti-extraction component for preventing the sliding block inserted into the sliding groove from being extracted from the opening of the sliding groove.

[0009] The sliding block arranged on the inner wall of the protective cover can be inserted into the nozzle body from the open end of the nozzle body, thereby realizing the sliding of the protective cover on the nozzle body, so that the protective cover can cover the heat dissipation fin to protect the heat dissipation fin or be away from the heat dissipation fin to facilitate the subsequent replacement of the heat dissipation fin. The anti-extraction component arranged at the open end of the sliding groove can prevent the sliding block from being extracted from the sliding groove, thereby reducing the probability of the protective cover being extracted from the nozzle body.

[0010] Preferably, the protective component comprises a mounting groove circumferentially arranged near the opening of the sliding groove on the outer wall of the nozzle body and a circlip capable of being inserted into the mounting groove in interference and closing the open end of the sliding groove.

[0011] The circlip arranged can be inserted into the mounting groove after the sliding block is inserted into the sliding groove, thereby closing the opening of the sliding groove and preventing the sliding block from being extracted from the sliding groove, thereby preventing the protective cover from falling off the nozzle body.

[0012] Preferably, the limiting component comprises a plurality of extension sleeves circumferentially arranged on the outer wall of the protective cover, a through hole extending through the extension sleeve and the protective cover is arranged in the middle of the extension sleeve, a insertion hole opposite to the through hole is arranged on the nozzle body when the protective cover covers outside the heat dissipation fin, and a limiting pin is arranged in the extension sleeve and capable of being inserted into the insertion hole after passing through the through hole.

[0013] The limiting pin arranged in the extension sleeve can be inserted into the insertion hole on the nozzle body when the protective cover covers outside the heat dissipation fin, thereby limiting the movement of the protective cover on the nozzle body and keeping the protective cover in the state of covering outside the heat dissipation fin.

[0014] Preferably, the through hole is provided with a driving member for driving the limiting pin to automatically insert into the insertion hole when the through hole is opposite to the insertion hole.

[0015] Preferably, the driving member comprises a reset spring sleeved on the outer wall of the limiting pin, the through hole is provided with a receiving groove near one end of the nozzle body for accommodating the reset spring, and the limiting pin is provided with a protruding ring at one end near the reset spring.

[0016] With the above arrangement, the reset spring arranged between the protruding ring and the receiving groove can push the protruding ring to move when the through hole is opposite to the insertion hole on the nozzle body, and at this time the protruding ring will drive the limiting pin to automatically insert into the insertion hole on the nozzle body, thereby limiting the movement of the protective cover and keeping it covering the outer wall of the heat sink.

[0017] Preferably, the end of the limiting pin away from the nozzle body extends out of the extension sleeve, and a blocking ring is connected to the limiting pin at the position where the limiting pin extends out of the extension sleeve for preventing the limiting pin from being completely retracted into the through hole.

[0018] With the above arrangement, the blocking ring arranged at the position where the limiting pin extends out of the extension sleeve can prevent the limiting pin from being completely retracted into the extension sleeve, thereby facilitating the operator to pull the extension sleeve, and the blocking ring can also facilitate the operator to pull the limiting pin out of the outer wall of the extension sleeve.

[0019] Preferably, the protective cover is provided with a heat dissipation groove for facilitating the heat sink to dissipate its temperature to the outside of the protective cover, and the heat dissipation groove is provided with a filter screen at the end away from the heat sink for reducing the probability of dust entering the heat sink from the heat dissipation groove.

[0020] With the above arrangement, the heat dissipation groove arranged on the protective cover can facilitate the heat sink to dissipate its heat to the outside of the protective cover, thereby improving the heat dissipation effect of the heat sink, allowing it to better absorb the heat of the nozzle body and prolong the service life of the nozzle body, and the filter screen arranged in the heat dissipation groove can reduce the probability of dust entering the heat sink from the heat dissipation groove, thereby allowing the heat sink to more stably absorb the heat of the nozzle body.

[0021] Preferably, when the protective cover covers the outer wall of the heat sink, the inner wall of the protective cover is attached to the surface of the heat sink, and the size of the heat dissipation groove is smaller than the size of the heat sink.

[0022] With the above arrangement, when the protective cover moves to cover the heat sink and the inner wall of the protective cover is attached to the surface of the heat sink, the probability of the heat sink being detached from the accommodating groove can be reduced, and the heat sink can be kept in contact with the bottom of the accommodating groove, thereby allowing the heat sink to more stably absorb the heat of the nozzle body.

[0023] The utility model discloses a protective cover is set up on the nozzle body, and the protective cover is movable on the nozzle body through the sliding component, and the protective cover can be moved to the state of covering outside the radiating fin, thereby protecting the radiating fin and reducing the probability of dust adhering to the radiating fin, and the radiating fin is more stable to the heat dissipation effect of the nozzle body, and the limiting component is set up and can limit the position of the protective cover when the protective cover is moved to cover outside the radiating fin, so that the protective cover keeps the state of covering outside the radiating fin, and when the radiating fin needs to be replaced after long -term use, the protective cover can also be moved after the limiting component removes the limiting of the protective cover, so that the protective cover is away from the radiating fin, and the radiating fin can be detached from the nozzle body to replace. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the axonometric view of a heat dissipation nozzle for a laser cutting head in the embodiment;

[0025] Figure 2 is the enlarged view of A in Figure 1

[0026] Figure 3 is the axonometric view of the nozzle body in the embodiment;

[0027] Figure 4 is the axonometric view of the protective cover in the embodiment;

[0028] Figure 5 is the sectional view of a heat dissipation nozzle for a laser cutting head in the embodiment;

[0029] Figure 6 is the enlarged view of B in Figure 5

[0030] The part names referred to by the numbers in the above drawings are as follows: 1, nozzle body; 2, radiating fin; 3, accommodating groove; 4, protective cover; 5, sliding groove; 6, sliding block; 7, mounting groove; 8, clamping spring; 9, extension sleeve; 10, through hole; 11, insertion hole; 12, return spring; 13, storage groove; 14, protruding ring; 15, blocking ring; 16, radiating groove; 17, filter screen; 18, limiting bolt. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in combination with the drawings and the embodiments.

[0032] A heat dissipation nozzle for a laser cutting head, referring to Figures 1-3 ​​, including nozzle body 1, nozzle body 1 outer wall on the circumference of a plurality of fins 2, nozzle body 1 outer wall is provided with the accommodation groove 3 of placing fins 2, the outer wall of nozzle body 1 is provided with the protective component for reducing the probability of dust adhering to fins 2, the protective component includes the protective cover 4 provided on the nozzle body 1, the protective cover 4 and the nozzle body 1 between the sliding component for facilitating the protective cover 4 on the nozzle body 1 away from the fins 2 or cover on the fins 2 sliding and when the protective cover 4 cover on the fins 2 outside the position limiting component of the protective cover 4.

[0033] Reference Figures 1-4 , the sliding component includes the sliding groove 5 provided on the outer wall of the nozzle body 1 and the opening at one end and the sliding block 6 provided on the inner wall of the protective cover 4, which can be inserted into the sliding groove 5 and slide in the sliding groove 5, the opening end of the sliding groove 5 is provided with the anti-extraction component for preventing the sliding block 6 inserted into the sliding groove 5 from escaping from the opening of the sliding groove 5, the protective component includes the mounting groove 7 circumferentially around the nozzle body 1 near the opening of the sliding groove 5 and the snap spring 8 which can be inserted into the mounting groove 7 and close the opening end of the sliding groove 5.

[0034] Reference Figures 3-6 , the limiting component includes a plurality of extension sleeves 9 circumferentially provided on the outer wall of the protective cover 4, the extension sleeve 9 is provided with a through hole 10 extending through the extension sleeve 9 and the protective cover 4, the nozzle body 1 is provided with a insertion hole 11 opposite to the through hole 10 when the protective cover 4 covers the fins 2 outside, the extension sleeve 9 is provided with a limiting pin 18 which can be inserted into the insertion hole 11 after passing through the through hole 10, the limiting component in the embodiment is symmetrically arranged on both sides of the protective cover 4 and the nozzle body 1, the through hole 10 is provided with a driving member which can drive the limiting pin 18 to automatically insert into the insertion hole 11 when the through hole 10 is opposite to the insertion hole 11, the driving member includes the reset spring 12 sleeved on the outer wall of the limiting pin 18, one end of the through hole 10 close to the nozzle body 1 is provided with a storage groove 13 for storing the reset spring 12, one end of the limiting pin 18 close to the reset spring 12 is provided with a convex ring 14, and the both ends of the reset spring 12 are respectively abutted with the surface of the convex ring 14 and the groove bottom of the storage groove 13.

[0035] The end of the limiting pin 18 away from the nozzle body 1 extends to the outside of the extension sleeve 9, and a blocking ring 15 is connected to the end of the limiting pin 18 extending out of the extension sleeve 9 for preventing the limiting pin 18 from completely retracting into the through hole 10, and the blocking ring 15 and the limiting pin 18 are detachably connected by thread connection or other means.

[0036] The protective cover 4 is provided with a heat dissipation groove 16 for facilitating the heat dissipation fin 2 to dissipate its temperature to the outside of the protective cover 4, and the heat dissipation groove 16 is provided at the end away from the heat dissipation fin 2 with a filter screen 17 for reducing the probability of dust entering the heat dissipation groove 16 and adhering to the heat dissipation fin 2, and the inner wall of the protective cover 4 is attached to the surface of the heat dissipation fin 2 when the protective cover 4 covers the outer wall of the heat dissipation fin 2, and the size of the heat dissipation groove 16 is smaller than that of the heat dissipation fin 2.

[0037] Specific process: when the protective cover 4 needs to protect the heat dissipation fin 2, first, the sliding block 6 on the protective cover 4 is inserted into the sliding groove 5 on the nozzle body 1, and then the snap spring 8 is inserted into the installation groove 7, and then the protective cover 4 is moved to cover the heat dissipation fin 2, and in the process of installing the protective cover 4 on the nozzle body 1, the limiting pin 18 arranged in the extension sleeve 9 is first completely retracted into the extension sleeve 9, at which time the return spring 12 is compressed under force, and when the protective cover 4 moves to cover the heat dissipation fin 2, the through hole 10 on the protective cover 4 is opposite to the insertion hole 11 on the nozzle body 1, at which time the return spring 12 compressed under force is restored, thereby pushing the limiting pin 18 to partially insert into the insertion hole 11, at which time the movement of the protective cover 4 is limited, and the protective cover 4 can remain in the state of covering the heat dissipation fin 2, thereby protecting the heat dissipation fin 2, reducing the probability of dust adhering to the heat dissipation fin 2, making the heat dissipation effect of the heat dissipation fin 2 on the nozzle body 1 more stable, and improving the service life of the nozzle body 1, and the heat dissipation groove 16 arranged on the protective cover 4 can facilitate the heat dissipation fin 2 to dissipate its temperature to the outside of the protective cover 4, and the filter screen 17 arranged in the heat dissipation groove 16 can reduce the probability of dust adhering to the heat dissipation fin 2; when the heat dissipation fin 2 needs to be removed for replacement, the limiting pin 18 can be pulled outwards to make the limiting pin 18 come out of the insertion hole 11, at which time the protective cover 4 can be moved on the nozzle body 1 to move away from the heat dissipation fin 2, and when the protective cover 4 completely separates from the heat dissipation fin 2, the heat dissipation fin 2 can be removed from the accommodating groove 3 for replacement, thereby further improving the service life of the nozzle body 1.

[0038] The preferred embodiments of the present application are described above, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A heat dissipating nozzle for a laser cutting head, comprising a nozzle body (1), characterized in that: The outer wall of the nozzle body (1) is circumferentially provided with a plurality of fins (2), and the outer wall of the nozzle body (1) is provided with a containing groove (3) for placing the fins (2). The outer wall of the nozzle body (1) is provided with a protective component for reducing the probability of dust adhering to the fins (2). The protective component includes a protective cover (4) provided on the nozzle body (1). The protective cover (4) and the nozzle body (1) are provided with a sliding component for facilitating the sliding of the protective cover (4) away from the fins (2) or covering the fins (2), and a limiting component for limiting the position of the protective cover (4) when the protective cover (4) covers the fins (2).

2. A heat dissipating nozzle for a laser cutting head according to claim 1, characterized in that: The sliding component includes an open-ended sliding groove (5) provided on the outer wall of the nozzle body (1) and a sliding block (6) provided on the inner wall of the protective cover (4) and capable of being inserted into the sliding groove (5) and sliding in the sliding groove (5). The open end of the sliding groove (5) is provided with a anti-extraction component to prevent the sliding block (6) inserted into the sliding groove (5) from being extracted from the opening of the sliding groove (5).

3. A heat dissipating nozzle for a laser cutting head according to claim 2, characterized in that: The protective component includes a mounting groove (7) circumferentially provided on the outer wall of the nozzle body (1) near the opening of the sliding groove (5) and a circlip (8) that can be inserted into the mounting groove (7) with interference and close the open end of the sliding groove (5).

4. A heat dissipating nozzle for a laser cutting head according to claim 1, characterized in that: The limiting component includes a plurality of extension sleeves (9) circumferentially provided on the outer wall of the protective cover (4). The extension sleeves (9) are provided with through holes (10) extending through the extension sleeves (9) and the protective cover (4). The nozzle body (1) is provided with a insertion hole (11) opposite to the through hole (10) when the protective cover (4) covers the fins (2). The extension sleeves (9) are provided with a limiting pin (18) that can be inserted into the insertion hole (11) after passing through the through hole (10).

5. A heat dissipating nozzle for a laser cutting head according to claim 4, characterized in that: The through hole (10) is provided with a driving member that drives the limiting pin (18) to automatically insert into the insertion hole (11) when the through hole (10) is opposite to the insertion hole (11).

6. A heat dissipating nozzle for a laser cutting head according to claim 5, characterized in that: The driving member includes a return spring (12) sleeved on the outer wall of the limiting pin (18). The through hole (10) is provided with a receiving groove (13) near one end of the nozzle body (1) for receiving the return spring (12). The end of the limiting pin (18) near the return spring (12) is provided with a protruding ring (14). The two ends of the return spring (12) respectively abut the surface of the protruding ring (14) and the bottom of the receiving groove (13).

7. A heat dissipating nozzle for a laser cutting head according to claim 4, characterized in that: The end of the limiting pin (18) away from the nozzle body (1) extends out of the extension sleeve (9), and a blocking ring (15) is connected to the end of the limiting pin (18) that extends out of the extension sleeve (9) to prevent the limiting pin (18) from being completely retracted into the through hole (10).

8. A heat dissipating nozzle for a laser cutting head according to claim 1, characterized in that: The protective cover (4) is provided with a heat dissipation groove (16) for facilitating the fins (2) to dissipate their temperature to the outside of the protective cover (4). The end of the heat dissipation groove (16) away from the fins (2) is provided with a filter screen (17) for reducing the probability of dust entering the heat dissipation groove (16) and adhering to the fins (2).

9. A heat dissipating nozzle for a laser cutting head according to claim 8, characterized in that: When the protective cover (4) covers the outer wall of the heat dissipation fin (2), the inner wall of the protective cover (4) is attached to the surface of the heat dissipation fin (2), and the size of the heat dissipation groove (16) is smaller than the size of the heat dissipation fin (2).

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