CN218926612U

CN218926612U - Cutting head cooling device for laser cutting machine

Info

Publication number: CN218926612U
Application number: CN202223013421.7U
Authority: CN
Inventors: 王云; 王宇; 陶新谷
Original assignee: Hunan Dachuan Automation Technology Co ltd
Current assignee: Hunan Dachuan Automation Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-28
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a cutting head cooling device for a laser cutting machine, which comprises a laser cutting head, wherein a fixer is movably arranged on the outer ring of the laser cutting head, a radiator for radiating the bottom of the laser cutting head is arranged at the bottom of the fixer, an oil filter which is convenient for dismounting a filter element is used for a refrigerating system, silicone oil positioned in a liquid storage bin is introduced onto a contact piece head from a first flow pipe and an inclined cavity through a gas pressurizing technology, heat on the contact piece head and the laser cutting head is quickly exchanged onto a heat exchange copper sheet which is arranged on a movable cavity along a guide pipe, an upper air valve of an air cooling pipe is opened for exchanging heat on the laser cutting head, and the liquid storage bin is closed, and the air pressure output ensures that the flow speed of liquid in the refrigerating system is stable and quick, thereby being beneficial to heat exchange; the fixer rotates through manual rotation turning, can make radiator and laser cutting head contact, puts just and takes the dismantlement on the laser cutting head, does benefit to the later maintenance alone to the device, and is convenient save trouble.

Description

Cutting head cooling device for laser cutting machine

Technical Field

The utility model relates to the technical field of cooling equipment of laser cooling heads, in particular to a cutting head cooling device for a laser cutting machine.

Background

The increased temperature of the laser cutting head can lead to the cutting protection lens to work in a high-temperature environment for a long time, thereby shortening the service life of the protection lens. Cutting bright panels can also result in excessive nozzle temperatures on the cutting head, which can accelerate nozzle wear. The protection lens and the nozzle of the laser cutting head belong to cutting consumable materials, the service life is shortened, the cutting cost is increased, and the main reason for shortening the service life of the protection lens and the nozzle is that the laser cutting head works in a high-temperature state for a long time. However, in the prior art, the laser cutting head mainly radiates heat by virtue of the housing of the cutting head or by virtue of the radiating block arranged outside the cutting head, so that the radiating efficiency is low, and the laser cutting head is not suitable for radiating heat when the cutting head of the laser cutting machine with higher and higher power operates. For this purpose, we propose a cutting head cooling device for a laser cutting machine.

Disclosure of Invention

The utility model aims to provide a cutting head cooling device for a laser cutting machine, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the cutting head cooling device for the laser cutting machine comprises a laser cutting head, wherein a fixer is movably arranged on the outer ring of the laser cutting head, and a radiator for radiating heat at the bottom of the laser cutting head is arranged at the bottom of the fixer; the fixer comprises a box cover, a driving disc rotationally connected to the box cover, a plurality of sliding grooves formed in the driving disc, a plurality of fixing discs slidingly connected to the sliding grooves, a driving rod arranged on each fixing disc, and a driving limiting assembly arranged on the outer ring of the driving disc and used for driving the plurality of fixing discs to be spread in a fan shape, wherein the driving rods are fixedly connected with the radiator; the radiator comprises a pair of vertically stacked movable cavities which are mutually communicated at the bottom of the driving rod, a cold air pipe arranged between the two movable cavities, a heat exchange copper sheet arranged in the movable cavities and communicated with the cold air pipe, a guide pipe sliding on each movable cavity, a piston arranged at the other end of the guide pipe, a contact piece head arranged at one end of the guide pipe and communicated with the inside of the movable cavities, and a contact piece arranged at one side of the contact piece head and contacted with the laser cutting head.

Preferably, the radiator further comprises an inclined cavity which is obliquely arranged inside each movable cavity and is communicated with the first flow pipe at one end, a spring which is arranged on one side of the piston and is abutted to the inside of the movable cavity, a liquid storage bin which is arranged on the outer ring of the bottom of the box cover, the first flow pipe which is connected between the inner ring of the liquid storage bin and the movable cavity, and the second flow pipe which is connected between the bottom of the liquid storage bin and the movable cavity, a liquid inlet pipe is arranged at the bottom of the liquid storage bin, an air inlet pipe is arranged at the position far away from the liquid inlet pipe, a leak hole is formed in the inside of the movable cavity, and a connecting pipeline at the bottom of the leak hole extends to the inside of the movable cavity.

Preferably, the drive limiting assembly comprises a plurality of guide cavities arranged at the top of the box cover, limiting rods arranged on each fixed disc and sliding on the guide cavities, rotating hands arranged on the outer ring of the drive disc, limiting teeth arranged on the outer ring of the box cover, clamping teeth inserted into the rotating hands and meshed with the limiting teeth, two adjacent guide cavities form a channel, a plurality of guide grooves matched with the drive rods are formed in the drive disc, and the drive rods move along the fixed disc to penetrate through the guide grooves.

Preferably, a plurality of sliding grooves form a closed polygon, a sliding block is arranged at the bottom of the fixed disc, and the fixed disc is in sliding connection with the sliding grooves through the sliding block.

Preferably, a fixed seat is arranged between the two movable cavities.

Preferably, the liquid storage bin and the box cover are integrally formed.

Preferably, the side surface material of each fixing disc is made of soft anti-skid high-temperature-resistant rubber.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through a gas pressurizing technology, silicone oil positioned in the liquid storage bin is introduced onto the contact sheet head from the first flow pipe and the inclined cavity, heat on the contact sheet head and the laser cutting head is quickly exchanged onto the heat exchange copper sheet which is arranged on the movable cavity and enters the guide pipe, then the air valve on the cold air pipe is opened to exchange heat on the laser cutting head, and the liquid storage bin is closed, and the air pressure output is added, so that the flow rate of liquid in the liquid storage bin is stable and quick, and the heat exchange is facilitated;

2. the liquid storage bin is closed, and the liquid in the liquid storage bin can be recycled, so that waste is avoided;

3. the fixer rotates through manual rotation turning, can make radiator and laser cutting head contact, puts just and takes the dismantlement on the laser cutting head, does benefit to the later maintenance alone to the device, and is convenient save trouble.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall bottom view structure of the present utility model;

FIG. 3 is a schematic view showing the internal structure of the holder according to the present utility model;

FIG. 4 is a schematic view of a driving disk structure according to the present utility model;

FIG. 5 is a schematic view of a structure of a fixed disk of the present utility model;

FIG. 6 is a schematic diagram of the overall front view structure of the present utility model;

FIG. 7 is a schematic diagram of a heat sink according to the present utility model;

FIG. 8 is a schematic diagram of a heat sink according to the present utility model in full section;

fig. 9 is an enlarged schematic view of the point a in fig. 8 according to the present utility model.

In the figure: 1-a laser cutting head; 2-a holder; 3-a heat sink; 4-driving a disc; 5-guiding the cavity; 6-a guide groove; 7-a limiting rod; 8-fixing a disc; 9-limiting teeth; 10-clamping teeth; 11-turning hands; 12-a drive rod; 13, a liquid storage bin; 14-a liquid inlet pipe; 15-an air inlet pipe; 16-a first flow tube; 17-a second flow tube; 18-fixing base; 19-an active cavity; 20-a catheter; 21-contact pieces; 22-heat exchange copper sheets; 23-springs; 24-cold air pipe; 25-contact tab heads; 26-inclined cavity; 27-a piston; 28-leak hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-9, the present utility model provides a technical solution: a cutting head cooling device for a laser cutting machine comprises a laser cutting head 1, wherein a fixing device 2 (the fixing device and the fixing device are in sleeved connection) is movably arranged on the outer ring of the laser cutting head 1, a radiator 3 used for radiating heat at the bottom of the laser cutting head 1 is arranged at the bottom of the fixing device 2, the fixing device 2 comprises a box cover, a driving disc 4 rotatably connected to the box cover, a plurality of sliding grooves formed in the driving disc 4, a plurality of fixing discs 8 (the side surface material of each fixing disc 8 is made of soft anti-skid high-temperature-resistant rubber and is prevented from sliding downwards due to thermal expansion) connected to the fixing discs 8, a driving rod 12 arranged on each fixing disc 8, a driving limiting component arranged on the outer ring of the driving disc 4 and used for driving the plurality of fixing discs 8 to be in a fan-shaped expansion mode, the driving rod 12 and the radiator 3 are fixedly connected together, the radiator 3 comprises a pair of movable cavities 19 vertically stacked together and mutually communicated with each other and arranged at the bottom of the driving rod 12, a cold air pipe 24 arranged between the two movable cavities 19, a heat exchange 22 arranged in the movable cavities 19 and communicated with the cold air pipe 24, a plurality of copper sheet guide tubes 20 are slidably connected to each other, when the copper sheet 20 are slidably connected to the copper sheet 8, a plurality of the copper sheet 20 are further contacted with the inner side of the driving discs 21 and the inner side of the fixing discs 21, and the piston head 21 are further contacted with the inner side of the fixing discs 21 and the fixing discs and the sealing discs are arranged in a contact hole, and the sealing device is in contact with the sealing device, and the sealing device is arranged in the sealing device, and has a sealing device, and the sealing device is arranged in the sealing device, and the sealing device is in a sealing device, and the sealing device is and the cooling device is and the device. The heat on the piston 27 is conducted to the heat exchanging copper sheet 22, and at the moment, the valve of the cold air pipe 24 is opened to perform heat exchange refrigeration on the heat exchanging copper sheet 22.

In order to further achieve rapid heat transfer and heat dissipation, the following components are also adopted to support the work piece operation, and the specific flow is described in the following working principles:

the radiator 3 further comprises an inclined cavity 26 obliquely arranged in each movable cavity 19 and one end of which is communicated with the first flow pipe 16, a contact blade head 25 arranged at one end of the guide pipe 20 and communicated with the inside of the movable cavity 19, a spring 23 arranged at one side of the piston 27 and abutted against the inside of the movable cavity 19, a liquid storage bin 13 (the liquid storage bin 13 and the box cover are integrally formed) arranged at the bottom outer ring of the box cover, a first flow pipe 16 connected between the inner ring of the liquid storage bin 13 and the movable cavity 19, and a second flow pipe 17 connected between the bottom of the liquid storage bin 13 and the movable cavity 19, wherein the bottom of the liquid storage bin 13 is provided with a liquid inlet pipe 14, the bottom of the liquid storage bin 13 is provided with an air inlet pipe 15 at a position far away from the liquid inlet pipe 14, the position, and the bottom of the liquid storage bin 13 is provided with the liquid storage bin 13 below the fixing device as shown in fig. 1 and 2, wherein the inner ring of the liquid storage bin 13 does not exceed one end of a guide groove in the fixing device to ensure that the movable cavity 19 is moved, the first flow pipe 16 and the second flow pipe 17 are flexible, the first flow pipe 16 and the second flow pipe 17 are ensured to be slightly moved when the movable cavity 19 is moved, the first flow pipe 16 is slightly takes a shape and the liquid storage bin 16 is slightly to be a shape, a small enough to be a liquid flowing into the guide pipe 13 and is communicated with the guide pipe 20, and then the guide pipe 20 is enabled to flow into the inside the moving cavity 20, and is enabled to flow channel 20 to be contacted with the top part and has high quality 20;

in addition, one end of the second flow pipe 17 is inserted into the liquid storage bin 13, and the end is far higher than the liquid level in the liquid storage bin 13, so that the silicone oil can not be pressed up due to the influence of pressure gas;

as can be seen from fig. 7-8, sealing rings are installed between the movable cavity 19 of the upper stage and the lower stage and the contact piece 25 head of each stage, so that the contact piece 25 head and the movable cavity 19 can be conveniently prevented from leaking when in butt joint.

The drive limiting assembly comprises a plurality of guide cavities 5 arranged at the top of the box cover, limiting rods 7 arranged on each fixed disc 8 and sliding on the guide cavities 5, rotating hands 11 arranged on the outer ring of the drive disc 4, limiting teeth 9 arranged on the outer ring of the box cover, clamping teeth 10 which are inserted into the rotating hands 11 and meshed with the limiting teeth 9 together, two adjacent guide cavities 5 form a channel, a plurality of guide grooves 6 matched with the driving rods 12 are formed in the drive disc 4, and the driving rods 12 move along the fixed disc 8 to pass through the guide grooves 6.

The sliding grooves form a closed polygon, a sliding block is arranged at the bottom of the fixed disc 8, and the fixed disc 8 is in sliding connection with the sliding grooves through the sliding block.

The bottom of the liquid storage bin 13 is provided with an upper movable cavity 19 and a lower movable cavity 19, the driving rod 12 drives the movable cavity 19 to move, and the upper movable cavity 19 and the lower movable cavity 19 are clamped together by the fixing seat 18.

Working principle: a fixing portion: as can be seen from fig. 1 to 6, when the turning hand 11 rotates to the left, the limit rod slides on the guide cavity 5, then, when the limit rod slides on the guide cavity 5, the sliding groove on the driving disc 4 drives the sliding block at the bottom of the fixed disc 8 to slide, so as to drive the sliding block to change the rotation angle, and the opening angle between the fixed discs 8 is changed, so that a gap is formed between the fixed discs 8, and the cutting head is convenient to insert, wherein the latch 10 and the turning hand 11 are magnetically linked together, the latch 10 and the turning hand 11 are in sliding connection, and the sliding groove on the turning hand 11 enables the latch 10 to be clamped and slide, thereby achieving the stabilizing effect.

Heat dissipation part: firstly, injecting a certain amount of silicone oil through a liquid inlet pipe 14 positioned at the bottom of a liquid storage bin 13, stopping injection after waiting for a period of time, then fixing the silicone oil by using a fixer 2 and a laser cutting head 1, connecting a cold air pipe 24 with a cooling liquid pipe at the moment, driving a movable cavity 19 to move by a driving rod 12 during the use of the fixer 2, moving the movable cavity 19 towards the laser cutting head 1, abutting against the laser cutting head 1 after a contact piece 25, driving a guide pipe 20 of the contact piece 25 to retract into a piston 27 in the movable cavity 19 to compress a spring 23 (positioned at the right end of the movable cavity 19), aligning the rear end of the contact piece 25 with the movable cavity 19, respectively communicating an inclined cavity 26 with an internal channel of the contact piece head 25 and the guide pipe 20, and inputting gas with a certain pressure into the liquid inlet pipe 15 positioned at the bottom of the liquid storage bin 13 during the operation of the laser cutting head 1, at this time, the silicone oil in the liquid storage bin 13 is firstly subjected to air pressure, enters the first flow pipe 16, then flows into the inclined cavity 26 in the movable cavity 19 from the first flow pipe 16, the liquid enters the contact blade head 25 along with the inclined cavity 26 and then flows into the guide pipe 20, the silicone oil is extruded between the heat exchange copper sheet 22 and the piston 27 due to the existence of the internal pressure, part of the silicone oil flows into the cavity of the piston 27 at the side far away from the heat exchange copper sheet 22 (the piston 27 is provided with a hole), then the heat transferred by the silicone oil is exchanged by the contact of the cooling liquid and the heat exchange copper sheet 22, the surface of the cutting head is cooled, the silicone oil conduction effect is better because the distance between the heat exchange copper sheet 22 and the piston 27 is small, then the silicone oil flows into the leak hole 28 in the movable cavity 19 at the bottom of the movable cavity 19, the silicone oil flows into the movable cavity 19 of the next stage along with the leak hole 28, (the internal layout of the two movable cavities 19 is the same), between the first flow pipe 16 and the second flow pipe 17, pressure gas exists between the first flow pipe 16 and the second flow pipe 17 due to the sealing state between the two movable cavities 19, the silicone oil pressure flows back to the inside of the liquid storage bin 13 along with the second flow pipe 17 under the action of the pressure gas, and then the next round of cooling is carried out from the first flow pipe 16 again due to the pressure;

waiting until the end of the operation of the laser cutting head 1. Since the inside of the movable cavity 19 is still provided with a certain amount of heat which is not taken away, if the movable cavity is used for a long time, the service life of equipment is reduced, so that the spring 23 is connected between the heat exchange copper sheet 22 and the piston 27 for use when the piston 27 is reset, after the laser cutting head 1 is finished in operation, a certain amount of silicone oil is still present between the heat exchange copper sheet 22 and the piston 27 after the fixture is evacuated, so that the spring 23 needs to be reset to be normal after the laser cutting head 1 is finished in operation, the piston 27 is driven to reset in a reverse direction, the silicone oil in a cavity on one side of the piston 27 is compressed between the heat exchange copper sheet 22 and the piston 27, and then the heat exchange copper sheet 22 is used for heat exchange.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Cutting head cooling device for laser cutting machine, including laser cutting head (1), its characterized in that: the outer ring of the laser cutting head (1) is movably provided with a fixer (2), and the bottom of the fixer (2) is provided with a radiator (3) for radiating heat at the bottom of the laser cutting head (1);

the fixer (2) comprises a box cover, a driving disc (4) rotationally connected to the box cover, a plurality of sliding grooves formed in the driving disc (4), a plurality of fixing discs (8) slidingly connected to the sliding grooves, driving rods (12) arranged on each fixing disc (8), and driving limiting components arranged on the outer ring of the driving disc (4) and used for driving the plurality of fixing discs (8) to be in fan-shaped expansion, wherein the driving rods (12) are fixedly connected with the radiator (3);

the radiator (3) comprises a pair of movable cavities (19) which are vertically stacked together and are mutually communicated at the bottom of the driving rod (12), a cold air pipe (24) arranged between the two movable cavities (19), a heat exchange copper sheet (22) arranged inside the movable cavities (19) and communicated with the cold air pipe (24), a guide pipe (20) sliding on each movable cavity (19), a piston (27) arranged at the other end of the guide pipe (20), a contact blade head (25) arranged at one end of the guide pipe (20) and communicated with the inside of the movable cavities (19), and a contact blade (21) arranged at one side of the contact blade head (25) and contacted with the laser cutting head (1).

2. A cutting head cooling device for a laser cutting machine according to claim 1, wherein: radiator (3) still including the slope set up in every activity chamber (19) inside and one end and inclined cavity (26) of first runner pipe (16) intercommunication, locate piston (27) one side and contradict in inside spring (23) of activity chamber (19), install liquid storage bin (13) of lid bottom outer lane, connect first runner pipe (16) between liquid storage bin (13) inner circle and activity chamber (19), and connect second runner pipe (17) between liquid storage bin (13) bottom and activity chamber (19), liquid storage bin (13) bottom is equipped with feed liquor pipe (14), liquid storage bin (13) bottom is in keeping away from feed liquor pipe (14) department and installs intake pipe (15), leak (28) have been seted up to activity chamber (19) inside, leak (28) bottom connecting tube extends to inside activity chamber (19).

3. A cutting head cooling device for a laser cutting machine according to claim 1, wherein: the driving limiting assembly comprises a plurality of guide cavities (5) arranged at the top of the box cover, limiting rods (7) arranged on each fixed disc (8) and sliding on the guide cavities (5), rotating hands (11) arranged on the outer ring of the driving disc (4), limiting teeth (9) arranged on the outer ring of the box cover, clamping teeth (10) meshed with the limiting teeth (9) on the rotating hands (11) are inserted into the adjacent two guide cavities (5), a channel is formed between the adjacent two guide cavities (5), a plurality of guide grooves (6) matched with the driving rods (12) are formed in the driving disc (4), and the driving rods (12) movably penetrate through the guide grooves (6) along with the fixed disc (8).

4. A cutting head cooling device for a laser cutting machine according to claim 1, wherein: the sliding grooves form a closed polygon, the bottom of the fixed disc (8) is provided with a sliding block, and the fixed disc (8) is in sliding connection with the sliding grooves through the sliding block.

5. A cutting head cooling device for a laser cutting machine according to claim 1, wherein: a fixed seat (18) is arranged between the two movable cavities (19).

6. A cutting head cooling device for a laser cutting machine according to claim 2, wherein: the liquid storage bin (13) and the box cover are integrally formed.

7. A cutting head cooling device for a laser cutting machine according to claim 1, wherein: the side surface material of each fixed disc (8) is made of soft anti-skid high-temperature-resistant rubber.