CN211638704U

CN211638704U - Laser cutting head

Info

Publication number: CN211638704U
Application number: CN201922280931.2U
Authority: CN
Inventors: 张广业; 张伟; 郭忠喜
Original assignee: Henan Huawei Laser Technology Co ltd
Current assignee: Henan Huawei Laser Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-09
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a laser cutting head, which comprises a housin, there is the top cap through the screw connection on the top outer wall of casing, the central department threaded connection of top cap top outer wall has laser emitter, threaded connection has ceramic ring on the bottom outer wall of casing, and ceramic ring's bottom threaded connection has the shower nozzle, threaded connection has the cooling tube on ceramic ring's the side outer wall, it has the cooling bath to open on the top outer wall of cooling tube, open the bottom of one side outer wall of cooling tube has the water inlet, and one side outer wall top that the water inlet was kept away from to the cooling tube has the delivery port, water inlet and delivery port all run through to the inside of cooling bath. The utility model discloses a direct threaded connection of cooling tube is on the side outer wall of ceramic ring, and the heat that produces on the shower nozzle can transmit for the cooling tube through ceramic ring to take away through the inside flowing coolant liquid of cooling tube, thereby reduced the temperature of shower nozzle, prevent to damage because of the shower nozzle causes inside optical component to damage, saved the maintenance cost.

Description

Laser cutting head

Technical Field

The utility model relates to a laser cutting technical field especially relates to a laser cutting head.

Background

The laser cutting machine uses laser emitted from a laser device, and the laser is focused into a laser beam with high power density through a light path system, and the laser beam irradiates the surface of a workpiece, so that the workpiece reaches a melting point or a boiling point, a material starts to be vaporized and forms a hole, and the material forms a kerf along with the movement of the relative position of the beam and the workpiece along with high-pressure airflow.

Laser cutting machine's shower nozzle also can receive the radiation of laser at the in-process that uses, and the radiation converts the heat into on the shower nozzle, and the heat is constantly accumulated when using for a long time, and traditional laser cutting head does not have heat abstractor usually for the shower nozzle is damaged because of high temperature easily in the in-process of using for a long time, thereby can't protect inside expensive optical component. Therefore, there is a need to design a laser cutting head to solve the above problems.

Disclosure of Invention

The utility model aims at solving the heat abstractor that does not exist among the prior art for the shower nozzle damages because of high temperature easily at the in-process of long-term use, thereby can't protect inside expensive optical component's shortcoming, and the laser cutting head who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a laser cutting head, includes the casing, there is the top cap through the screw connection on the top outer wall of casing, the center department threaded connection of top cap top outer wall has laser emitter, threaded connection has ceramic ring on the bottom outer wall of casing, and ceramic ring's bottom threaded connection has the shower nozzle, threaded connection has the cooling tube on ceramic ring's the side outer wall.

The key concept of the technical scheme is as follows: through the cooling tube that sets up, the direct threaded connection of cooling tube is on the side outer wall of ceramic ring, and the heat that produces on the shower nozzle can be transmitted for the cooling tube through ceramic ring to take away through the inside coolant liquid that flows of cooling tube, thereby reduced the temperature of shower nozzle, prevent to damage because of the shower nozzle leads to the fact inside optical component to damage, saved the maintenance cost.

Furthermore, a cooling groove is formed in the outer wall of the top of the cooling pipe, a water inlet is formed in the bottom of the outer wall of one side of the cooling pipe, a water outlet is formed in the top of the outer wall of one side, away from the water inlet, of the cooling pipe, and the water inlet and the water outlet penetrate through the cooling groove.

Further, it has the draw-in groove to open on one side outer wall of casing, and the inside joint of draw-in groove has the end plate, there is the mounting bracket through bolted connection on one side outer wall of end plate, and the central department joint of mounting bracket top outer wall has the protection lens, mounting bracket and protection lens are all pegged graft in the inside of casing.

Furthermore, a fixing groove is formed in the outer wall of the top of the cooling pipe, a sealing ring is clamped inside the fixing groove, and the sealing ring is located between the inner wall of the bottom of the fixing groove and the outer wall of the bottom of the shell.

Furthermore, the bottom end of the cooling pipe is in threaded connection with a protective shell, a spray hole is formed in the center of the outer wall of the bottom of the protective shell, and the spray head is inserted into the protective shell.

Furthermore, the outer wall of one side of the shell is connected with a connecting plate through a bolt, and the outer wall of one side of the connecting plate is provided with connecting holes distributed in a rectangular structure at equal intervals.

The utility model has the advantages that:

1. through the cooling tube that sets up, the direct threaded connection of cooling tube is on the side outer wall of ceramic ring, and the heat that produces on the shower nozzle can be transmitted for the cooling tube through ceramic ring to take away through the inside coolant liquid that flows of cooling tube, thereby reduced the temperature of shower nozzle, prevent to damage because of the shower nozzle leads to the fact inside optical component to damage, saved the maintenance cost.

2. Through the protecting crust that sets up, when cutting soft and surperficial unevenness material with man-hour, the protecting crust can directly contact with the material, and the part that will wait to cut flattens to make the processing effect better, and can prevent that the laser cutting head from descending excessively when processing hard material, make the thing of shower nozzle and material collision take place, protected the shower nozzle effectively.

3. Through the mounting bracket and the end plate that set up, the protection lens can play the guard action for the inside optical component of laser cutting head, and for vulnerable part, the protection lens of this device passes through the mounting bracket and pegs graft in the inside of casing, and the mounting bracket passes through the inside of end plate joint at the draw-in groove to make the change and the maintenance to the protection lens become very convenient, make the time cost greatly reduced of maintaining.

Drawings

Fig. 1 is a schematic structural view of a laser cutting head according to the present invention;

fig. 2 is a schematic structural view of a mounting frame and a spray head of a laser cutting head according to the present invention;

fig. 3 is a sectional view of the cooling tube and the protective shell structure of the laser cutting head provided by the utility model.

In the figure: the device comprises a shell 1, a top cover 2, a laser emitter 3, a connecting plate 4, a connecting hole 5, a cooling pipe 6, a clamping groove 7, an end plate 8, a mounting rack 9, a protective lens 10, a ceramic ring 11, a spray head 12, a cooling groove 13, a fixing groove 14, a sealing ring 15, a water inlet 16, a water outlet 17, a protective shell 18 and a spray hole 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 3 simultaneously, a laser cutting head, which comprises a housing 1, a top cover 2 is connected to the outer wall of the top of the housing 1 through a screw, the top cover 2 and the housing 1 are both used for protecting the optical components inside from being damaged, a laser emitter 3 is connected to the center of the outer wall of the top cover 2 through a screw, the type of the laser emitter 3 is F3015BE, which is used for generating a laser light source, a ceramic ring 11 is connected to the outer wall of the bottom of the housing 1 through a screw, a nozzle 12 is connected to the bottom end of the ceramic ring 11 through a screw, which guides the laser beam to irradiate at a required position, a cooling pipe 6 is connected to the outer wall of the side of the ceramic ring 11 through a.

As can be seen from the above description, the present invention has the following advantages: through the cooling tube 6 that sets up, the direct threaded connection of cooling tube 6 is on the side outer wall of ceramic ring 11, and the heat that produces on shower nozzle 12 can pass through ceramic ring 11 and transmit for cooling tube 6 to take away through the inside coolant liquid that flows of cooling tube 6, thereby reduced shower nozzle 12's temperature, prevented to damage because of shower nozzle 12 causes inside optical component to damage, saved the maintenance cost.

Further, it has opened cooling bath 13 to open on the top outer wall of cooling tube 6, and cooling bath 13 is compared and is changeed processing in the cooling chamber, can save the processing cost, and open the bottom of one side outer wall of cooling tube 6 has water inlet 16, and one side outer wall top that cooling tube 6 kept away from water inlet 16 is opened there is delivery port 17, and water inlet 16 and delivery port 17 all run through to the inside of cooling bath 13.

Further, it has draw-in groove 7 to open on one side outer wall of casing 1, and the inside joint of draw-in groove 7 has end plate 8, has mounting bracket 9 through bolted connection on one side outer wall of end plate 8, and the central department joint of mounting bracket 9 top outer wall has protective glass piece 10 for protect other optical component, mounting bracket 9 and protective glass piece 10 are all pegged graft in the inside of casing 1, make the change and the maintenance to protective glass piece 10 become more convenient.

Further, open on the top outer wall of cooling tube 6 has fixed slot 14, and the inside joint of fixed slot 14 has sealing ring 15, and sealing ring 15 is located between the bottom inner wall of fixed slot and the bottom outer wall of casing 1 for the top of sealed cooling bath 13 prevents that the coolant liquid from flowing out from top 1.

Further, the bottom threaded connection of cooling tube 6 has protecting crust 18, and when cutting soft and surperficial unevenness material and processing, protecting crust 18 can directly contact with the material, and the part that will wait to cut flattens to make the material change processing, and the center department of protecting crust 18 bottom outer wall opens there is orifice 19, the export of laser, shower nozzle 12 peg graft in protecting crust 18's inside, can form the protection to shower nozzle 12, prevents that shower nozzle 12 from damaging.

Furthermore, the outer wall of one side of the shell 1 is connected with a connecting plate 4 through a bolt, and connecting holes 5 which are distributed in a rectangular structure and are formed at equal intervals are formed in the outer wall of one side of the connecting plate 4, so that the connecting plate can be conveniently installed on laser cutting machines of different models.

By adopting the protective shell 18, when soft materials with uneven surfaces are cut and processed, the protective shell 18 can directly contact with the materials to flatten the part to be cut, so that the processing effect is better, the laser cutting head can be prevented from excessively descending when hard materials are processed, the spray head 12 is prevented from colliding with the materials, and the spray head 12 is effectively protected; mounting bracket 9 and the end plate 8 that set up, protective glass piece 10 can play the guard action for the inside optical component of laser cutting head, and for vulnerable part, protective glass piece 10 of this device passes through mounting bracket 9 and pegs graft in the inside of casing 1, and mounting bracket 9 passes through the inside of end plate 8 joint at draw-in groove 7 to make protective glass piece 10's change and maintenance become very convenient, make the time cost greatly reduced who maintains.

In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:

example 1

The utility model provides a laser cutting head, which comprises a housin 1, there is top cap 2 through screwed connection on the top outer wall of casing 1, top cap 2 and casing 1 all are used for protecting inside optical component not to receive the damage, the center department threaded connection of top cap 2 top outer wall has laser emitter 3, laser emitter 3's model is F3015BE, be used for producing laser source, threaded connection has ceramic ring 11 on the bottom outer wall of casing 1, and ceramic ring 11's bottom threaded connection has shower nozzle 12, the guide laser beam shines in the position that needs, threaded connection has cooling tube 6 on ceramic ring 11's the side outer wall, be used for cooling down for shower nozzle 12, prevent shower nozzle 12 overheat damage.

The cooling pipe 6 is provided with a cooling groove 13 on the outer wall of the top, the cooling groove 13 is easier to process compared with a cooling cavity, the processing cost can be saved, the bottom of the outer wall of one side of the cooling pipe 6 is provided with a water inlet 16, the top of the outer wall of one side of the cooling pipe 6 far away from the water inlet 16 is provided with a water outlet 17, and the water inlet 16 and the water outlet 17 both penetrate through the cooling groove 13; a clamping groove 7 is formed in the outer wall of one side of the shell 1, an end plate 8 is clamped in the clamping groove 7, an installation frame 9 is connected to the outer wall of one side of the end plate 8 through a screw, a protective lens 10 is clamped in the center of the outer wall of the top of the installation frame 9 and used for protecting other optical components, the installation frame 9 and the protective lens 10 are inserted in the shell 1, and therefore the protective lens 10 is more convenient to replace and maintain; a fixed groove 14 is formed in the outer wall of the top of the cooling pipe 6, a sealing ring 15 is clamped inside the fixed groove 14, and the sealing ring 15 is located between the inner wall of the bottom of the fixed groove and the outer wall of the bottom of the shell 1 and used for sealing the top of the cooling groove 13 and preventing cooling liquid from flowing out of the top 1; the bottom end of the cooling pipe 6 is in threaded connection with a protective shell 18, when soft materials with uneven surfaces are cut and machined, the protective shell 18 can be directly contacted with the materials, the parts to be cut are flattened, the materials are easier to machine, a spray hole 19 is formed in the center of the outer wall of the bottom of the protective shell 18, a laser outlet is formed, the spray head 12 is inserted into the protective shell 18, the spray head 12 can be protected, and the spray head 12 is prevented from being damaged; the outer wall of one side of the shell 1 is connected with a connecting plate 4 through a bolt, and connecting holes 5 which are distributed in a rectangular structure and are formed at equal intervals are formed in the outer wall of one side of the connecting plate 4, so that the connecting plate can be conveniently installed on laser cutting machines of different models.

The working principle is as follows: when the laser cutting head is used, an operator firstly fixedly installs the laser cutting head on the laser cutting machine through the connecting plate 4 and the connecting hole 5, and the required optical component is installed inside the shell 1, then the top cover 2 is fixedly connected to the top end of the shell 1 through screws, then the laser emitter 3 is in threaded connection with the top of the top cover 2, then the cooling pipe 6 is in threaded connection with the outer wall of the side surface of the ceramic ring 11, the water outlet pipe for conveying cooling liquid is inserted inside the water inlet 16, the water inlet pipe for conveying cooling liquid is inserted inside the water outlet 17, and finally the protective shell 18 is in threaded connection with the bottom end of the cooling pipe 6, so that the spray head 12 is protected inside the protective shell 18; the during operation, laser cutting machine drives the motion of laser cutting head, when the soft and surperficial unevenness material of processing, protecting crust 18 is direct to contact with the material, along with the continuous motion of material, the part that will wait to cut of the bottom surface of protecting crust 18 flattens, thereby make the material change the cutting, laser emitter 3 sends laser and is focused by optical component this moment, loop through protective glass 10, shower nozzle 12 and orifice 19 shine on the surface of waiting to process the material, make the material surface by the material evaporation of focus department, the inside of water inlet 16 entering cooling bath 13 is passed through to the coolant liquid simultaneously, flow out by delivery port 17 after waiting to be full of cooling bath 13, thereby cool off shower nozzle 12.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a laser cutting head, includes casing (1), its characterized in that, there is top cap (2) through screwed connection on the top outer wall of casing (1), the center department threaded connection of top cap (2) top outer wall has laser emitter (3), threaded connection has ceramic ring (11) on the bottom outer wall of casing (1), and the bottom threaded connection of ceramic ring (11) has shower nozzle (12), threaded connection has cooling tube (6) on the side outer wall of ceramic ring (11).

2. The laser cutting head according to claim 1, characterized in that a cooling tank (13) is formed on the outer wall of the top of the cooling pipe (6), a water inlet (16) is formed at the bottom of the outer wall of one side of the cooling pipe (6), a water outlet (17) is formed at the top of the outer wall of one side of the cooling pipe (6) far away from the water inlet (16), and the water inlet (16) and the water outlet (17) both penetrate through the cooling tank (13).

3. The laser cutting head according to claim 1, characterized in that a clamping groove (7) is formed in an outer wall of one side of the housing (1), an end plate (8) is clamped inside the clamping groove (7), a mounting frame (9) is connected to the outer wall of one side of the end plate (8) through a screw, a protective lens (10) is clamped at a center of an outer wall of the top of the mounting frame (9), and the mounting frame (9) and the protective lens (10) are inserted into the housing (1).

4. The laser cutting head according to claim 1, characterized in that the cooling tube (6) has a fixing groove (14) formed on the top outer wall thereof, the fixing groove (14) has a sealing ring (15) clamped therein, and the sealing ring (15) is located between the bottom inner wall of the fixing groove and the bottom outer wall of the housing (1).

5. The laser cutting head according to claim 1, wherein a protective shell (18) is connected to the bottom end of the cooling pipe (6) in a threaded manner, a nozzle hole (19) is formed in the center of the outer wall of the bottom of the protective shell (18), and the spray head (12) is inserted into the protective shell (18).

6. The laser cutting head according to claim 1, characterized in that the outer wall of one side of the housing (1) is connected with a connecting plate (4) through bolts, and the outer wall of one side of the connecting plate (4) is provided with connecting holes (5) distributed in a rectangular structure at equal intervals.