Dustproof laser cutting head

Abstract

The invention discloses a dustproof laser cutting head, and particularly relates to the field of laser cutting heads, the dustproof laser cutting head comprises a bottom plate, a servo driving motor, a moving module, a fixed plate and a laser cutting head body, the servo driving motor is mounted on one side of the bottom plate, the moving module is arranged on the side end face of the bottom plate, and the fixed plate is arranged at the moving end of the moving module; a laser cutting head body is arranged on the bottom end face of the fixing plate, the laser cutting head body is in bolt limiting connection with the fixing plate through a limiting disc, and the laser cutting head body comprises a shell, a dust discharging assembly and a self-cleaning assembly. According to the laser cutting head, the dust discharging assembly and the self-cleaning assembly are used in cooperation, the self-cleaning effect can be achieved through a spray head and a dust sensor while dust is prevented from entering an inner cavity of a shell in the laser cutting head body, the dustproof effect is achieved through the structure, and dust on the two sides of a laser irradiation path is subjected to dust falling work through the dust falling assembly; by means of the structure, the effect of preventing dust from affecting laser cutting is jointly achieved.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting heads, and more particularly to a dustproof laser cutting head. Background Art

[0002] Laser cutting heads are widely used in laser cutting, laser welding, laser marking and other fields. In laser cutting, by adjusting the focus position of the laser processing head, cutting of different depths can be achieved. In laser welding, by adjusting the focus position and laser power of the laser processing head, welding of different depths and widths can be achieved. In laser marking, by adjusting the position of the laser processing head, accurate marking can be achieved. For example, application number CN202022082989.9 discloses a dust-proof laser cutting head structure, in which a dust-proof lens can be placed inside the placement plate through a pull-out plate arranged on one side inside the collimator, and the first sealing ring provides sealing between it and the placement plate, and the handle can drive the pull-out plate to be inserted into the placement groove, and the second sealing ring can ensure the sealing effect between the pull-out plate and the collimator, so that the light beam is dust-free during the output process, thereby improving the convergence rate of the light beam and preventing dust from entering the laser cutting head and causing pollution and damage to the optical lens; the above device solves the problem of preventing dust from polluting the inside of the laser cutting head, but the dust will not only affect the laser cutting head body, but also affect the irradiation and cutting path of the laser cutting head, thereby affecting the cutting effect; Therefore, a dustproof laser cutting head is proposed to solve the above problems. Summary of the invention

[0003] In order to overcome the above defects of the prior art, the present invention provides a dustproof laser cutting head to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dust-proof laser cutting head, comprising a base plate, a servo drive motor, a moving module, a fixed plate and a laser cutting head body, the servo drive motor being installed on one side of the base plate, and the side end face of the base plate being provided with a moving module, the moving end of the moving module being provided with a fixed plate, and the bottom end face of the fixed plate being provided with a laser cutting head body, the laser cutting head body being connected to the fixed plate bolts through a limiting plate, the laser cutting head body comprising a shell, a dust removal assembly and a self-cleaning assembly, the shell being installed on the bottom end face of the limiting plate, and the side wall of the shell being provided with a dust removal assembly, the inner cavity of the shell being provided with a self-cleaning assembly, and the bottom end face of the inner cavity of the shell being provided with a focusing lens group, a laser generator being provided directly above the focusing lens group, and the side end face of the shell being connected with a dust reduction assembly through a limiting plate.

[0005] Preferably, the dust exhaust component includes a one-way air inlet and a one-way dust exhaust port, the side end surface of the shell is penetrated by a one-way air inlet, and a one-way dust exhaust port is arranged below the one-way air inlet, filters are arranged on the inner sides of the one-way air inlet and the one-way dust exhaust port, and a miniature centrifugal dust exhaust fan is arranged on the inner side of the one-way dust exhaust port.

[0006] Preferably, the self-cleaning component includes a jet connecting tube and a nozzle, the jet connecting tube is installed on both sides above the focusing lens group, and the jet end of the jet connecting tube is provided with a nozzle, a dust sensor is provided on one side of the nozzle, and the jet connecting tube is connected to an air supply head.

[0007] Preferably, the dust reduction assembly includes an L-shaped protective cover and a joint, the L-shaped protective cover is installed on the side of the limit plate away from the shell, the side end face of the L-shaped protective cover is provided with a joint, and the joint is connected to a water pipe, the water pipe is L-shaped, and there are two groups of water pipes, and an electromagnetic valve is provided on the outer diameter surface of the water pipe, and a spray head is provided at the end of the water pipe away from the joint.

[0008] Preferably, the one-way air inlet forms a connecting structure with the one-way dust exhaust port through the shell, and the air inlet direction of the one-way air inlet is toward the inner cavity of the shell on one side of the one-way air inlet, and the flow directions of the one-way air inlet and the one-way dust exhaust port are opposite.

[0009] Preferably, the jet connecting pipe and the nozzle form a connecting structure, the jet connecting pipe and the air supply head form a connecting structure, the self-cleaning component is provided in two groups, and the nozzle is arranged at an angle, and the ejection end of the nozzle faces the center of the upper end surface of the focusing lens group.

[0010] Preferably, the joint and the water pipe form a communicating connection structure, the water pipe and the spray head form a communicating connection structure, the spray head is arranged obliquely, and two groups of water pipes, solenoid valves and spray heads are provided.

[0011] Preferably, two groups of the one-way air inlet and the one-way dust exhaust port are provided, and the one-way air inlet and the one-way dust exhaust port are arranged symmetrically, and the miniature centrifugal dust exhaust fan in the dust exhaust component is electrically connected to the PLC controller.

[0012] Preferably, the nozzle is connected to an external nitrogen supply pipe through an air jet connecting pipe and an air supply head, and the dust sensor is electrically connected to a PLC controller.

[0013] Preferably, the L-shaped protective cover in the dust reduction assembly forms a bolt connection structure with the limit plate through bolts, the spray head is connected to an external water supply pipe through a water pipe and a joint, and the solenoid valve is electrically connected to the PLC controller.

[0014] Technical effects and advantages of the present invention: Compared with the prior art, when this dust-proof laser cutting head is in use, the dust exhaust component and the self-cleaning component are used together to prevent dust from entering the inner cavity of the shell of the laser cutting head body. At the same time, the nozzle and the dust sensor can achieve a self-cleaning effect. The dust-proof effect is achieved through the above structure, and the dust reduction component is used to reduce the dust on both sides of the laser irradiation path. Through the above structure, the effect of preventing dust from affecting laser cutting is achieved.

[0015] Compared with the prior art, when the dust-proof laser cutting head is in use, dust exhaust components and self-cleaning components are arranged on both sides of the shell and the inner cavity of the laser cutting head body, wherein air is infused into the inner cavity of the shell through a one-way air inlet, and the air in the inner cavity of the shell is discharged through the one-way dust exhaust port, and a micro centrifugal dust exhaust fan is started, and the air in the inner cavity of the shell is replaced with the assistance of the micro centrifugal dust exhaust fan, and filter screens are arranged on the inner sides of the one-way air inlet and the one-way dust exhaust port, thereby preventing dust from entering the inner cavity of the shell during the air replacement process, and the above structure is also conducive to the inner cavity of the shell The heat is discharged, and the upper end surface of the focusing lens group can be automatically cleaned by using the self-cleaning component to prevent dust from contaminating the upper end surface of the focusing lens group, wherein the air supply head is connected to the nozzle through the jet connecting pipe, and the air supply head is connected to the external nitrogen supply pipe, wherein the dust in the inner cavity of the shell is detected by the dust sensor, and then when there is dust in the inner cavity of the shell, nitrogen is sprayed through the nozzle to flush the surface of the focusing lens group. The above structure prevents dust from entering the inner cavity of the shell, and can also automatically clean the surface of the focusing lens group, which is beneficial to the propagation of the laser generated by the laser generator.

[0016] Compared with the prior art, this dust-proof laser cutting head is in use, wherein the laser generator in the inner cavity of the shell in the laser cutting head body is working, and the laser is emitted through the focusing lens group, wherein the dust reduction component is used to reduce dust on both sides of the laser irradiation path, wherein the spray head is connected to the connecting joint through a water pipe, and the joint is connected to an external water pump, wherein water mist is sprayed on both sides of the laser irradiation path through the joint to reduce dust, thereby achieving the effect of reducing dust on both sides of the laser irradiation path, and the water mist spraying is controlled by an electromagnetic valve, wherein the L-shaped protective cover is limitedly connected to the outer diameter surface of the shell through a limiting plate, thereby facilitating the fixing of the dust reduction component, and through the above structure, the dust on both sides of the laser irradiation path is reduced to prevent dust from affecting the laser cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the top view structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the front cross-section structure of the laser cutting head body of the present invention.

[0020] Figure 4 It is a schematic diagram of the front cross-section structure of the dust reduction component of the present invention.

[0021] The accompanying drawings are marked as follows: 1. base plate; 2. servo drive motor; 3. moving module; 4. fixed plate; 5. laser cutting head body; 51. shell; 52. dust exhaust assembly; 521. one-way air inlet; 522. one-way dust exhaust port; 523. micro centrifugal dust exhaust fan; 53. self-cleaning assembly; 531. jet connecting pipe; 532. nozzle; 533. dust sensor; 534. air supply head; 54. focusing lens group; 55. laser generator; 56. limit plate; 57. dust reduction assembly; 571. L-shaped protective cover; 572. joint; 573. water guide pipe; 754. solenoid valve; 755. spray head; 6. limit plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] As attached Figures 1 to 3 A dust-proof laser cutting head shown in the figure includes a base plate 1, a servo drive motor 2, a moving module 3, a fixed plate 4 and a laser cutting head body 5. The servo drive motor 2 is installed on one side of the base plate 1, and the side end face of the base plate 1 is provided with a moving module 3, the moving end of the moving module 3 is provided with a fixed plate 4, and the bottom end face of the fixed plate 4 is provided with a laser cutting head body 5, the laser cutting head body 5 is connected to the fixed plate 4 by bolts through a limiting plate 6, the laser cutting head body 5 includes a shell 51, a dust removal component 52 and a self-cleaning component 53, the shell 51 is installed on the bottom end face of the limiting plate 6, and the side wall of the shell 51 is provided with a dust removal component 52, the inner cavity of the shell 51 is provided with a self-cleaning component 53, and the bottom end face of the inner cavity of the shell 51 is provided with a focusing lens group 54, a laser generator 55 is provided directly above the focusing lens group 54, and the side end face of the shell 51 is connected with a dust reduction component 57 through a limiting plate 56.

[0024] The dust exhaust component 52 includes a one-way air inlet 521 and a one-way dust exhaust port 522. The side end surface of the shell 51 is provided with a one-way air inlet 521, and the one-way dust exhaust port 522 is provided below the one-way air inlet 521. The inner sides of the one-way air inlet 521 and the one-way dust exhaust port 522 are both provided with filter screens, and the inner side of the one-way dust exhaust port 522 is provided with a micro centrifugal dust exhaust fan 523. The self-cleaning component 53 includes an air jet connecting pipe 531 and a nozzle 532. The air jet connecting pipe 531 is installed on both sides above the focusing lens group 54, and the jet end of the air jet connecting pipe 531 is provided with a nozzle 532. A dust sensor 533 is provided on one side of the head 532, and the jet connecting pipe 531 is connected to the air supply head 534. The dust reduction component 57 includes an L-shaped protective cover 571 and a joint 572. The L-shaped protective cover 571 is installed on the side of the limiting plate 56 away from the shell 51. The side end face of the L-shaped protective cover 571 is provided with a joint 572, and the joint 572 is connected to a water pipe 573. The water pipe 573 is L-shaped, and there are two groups of water pipes 573, and an electromagnetic valve 754 is provided on the outer diameter surface of the water pipe 573, and a spray head 755 is provided at the end of the water pipe 573 away from the joint 572.

[0025] Wherein: the dust exhaust assembly 52 and the self-cleaning assembly 53 are arranged on both sides and the inner cavity of the shell 51 in the laser cutting head body 5, the one-way air inlet 521 is used to infuse air into the inner cavity of the shell 51, and the air in the inner cavity of the shell 51 is discharged through the one-way dust exhaust port 522, and the micro centrifugal dust exhaust fan 523 is started, and the air in the inner cavity of the shell 51 is replaced with the assistance of the micro centrifugal dust exhaust fan 523, and at the same time, the inner sides of the one-way air inlet 521 and the one-way dust exhaust port 522 are both arranged The filter screen is provided to prevent dust from entering the inner cavity of the shell 51 during the air replacement process, and is also conducive to discharging the heat of the inner cavity of the shell 51. The self-cleaning component 53 can automatically clean the upper end surface of the focusing lens group 54 to prevent dust from contaminating the upper end surface of the focusing lens group 54. The air supply head 534 is connected to the nozzle 532 through the jet connecting pipe 531, and the air supply head 534 is connected to an external nitrogen supply pipe. The dust sensor 533 is used to detect dust in the inner cavity of the shell 51. When there is dust in the inner cavity of the shell 51, the dust sensor 533 is used to detect dust in the inner cavity of the shell 51. When there is dust, nitrogen is sprayed through the nozzle 532 to flush the surface of the focusing lens group 54, so as to prevent dust from entering the inner cavity of the shell 51, and at the same time, the surface of the focusing lens group 54 is automatically cleaned, which is beneficial to the propagation of the laser generated by the laser generator 55. When the laser generator 55 in the inner cavity of the shell 51 in the laser cutting head body 5 is working, the laser is emitted by the focusing lens group 54, and the dust is reduced on both sides of the laser irradiation path through the dust reduction component 57, wherein the spray head 755 is connected to the connecting joint 572 through the water pipe 573, and the joint 572 is connected to the external water pump, and the joint 572 is used to spray water mist on both sides of the laser irradiation path to reduce dust, so as to achieve the effect of reducing dust on both sides of the laser irradiation path, and the solenoid valve 754 is used to control the spraying of water mist, wherein the L-shaped protective cover 571 is limitedly connected to the outer diameter surface of the shell 51 through the limiting plate 56, so as to fix the dust reduction component 57, and the dust on both sides of the laser irradiation path is reduced to prevent dust from affecting the laser cutting effect. Example

[0026] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working method. Figures 1 to 4 As shown, see the following description for details: As a preferred embodiment, the one-way air inlet 521 forms a connecting structure with the one-way dust exhaust port 522 through the shell 51, and the air intake direction of the one-way air inlet 521 is the inner cavity of the shell 51 on one side of the one-way air inlet 521, and the flow directions of the one-way air inlet 521 and the one-way dust exhaust port 522 are opposite.

[0027] As a preferred embodiment, the jet connecting tube 531 and the nozzle 532 form a connecting structure, the jet connecting tube 531 and the air supply head 534 form a connecting structure, the self-cleaning component 53 is provided with two groups, and the nozzle 532 is arranged at an angle, and the ejection end of the nozzle 532 faces the center of the upper end surface of the focusing lens group 54.

[0028] As a preferred embodiment, the joint 572 and the water pipe 573 form a communicating connection structure, the water pipe 573 and the spray head 755 form a communicating connection structure, the spray head 755 is arranged at an angle, and the water pipe 573, the solenoid valve 754 and the spray head 755 are each provided in two groups.

[0029] As a preferred embodiment, two groups of one-way air inlet 521 and one-way dust exhaust port 522 are provided, and the one-way air inlet 521 and the one-way dust exhaust port 522 are arranged symmetrically, and the miniature centrifugal dust exhaust fan 523 in the dust exhaust component 52 is electrically connected to the PLC controller.

[0030] As a preferred embodiment, the nozzle 532 is connected to an external nitrogen supply pipe through the jet connecting pipe 531 and the gas supply head 534, and the dust sensor 533 is electrically connected to the PLC controller.

[0031] As a preferred embodiment, the L-shaped protective cover 571 in the dust reduction assembly 57 forms a bolted connection structure with the limit plate 6 through bolts, the spray head 755 is connected to an external water supply pipe through the water pipe 573 and the joint 572, and the solenoid valve 754 is electrically connected to the plc controller.

[0032] The working process of the present invention is as follows: a one-way air inlet 521 is used to infuse air into the inner cavity of the shell 51, and a one-way dust exhaust port 522 is used to exhaust the air in the inner cavity of the shell 51, and a micro centrifugal dust exhaust fan 523 is started, and the micro centrifugal dust exhaust fan 523 is used to assist in replacing the air in the inner cavity of the shell 51. At the same time, filter screens are provided on the inner sides of the one-way air inlet 521 and the one-way dust exhaust port 522, which is also beneficial for discharging the heat from the inner cavity of the shell 51, and the self-cleaning component 53 can automatically clean the upper end surface of the focusing lens group 54, wherein an air supply head 534 is connected to a nozzle 532 through an air jet connecting pipe 531, and the air supply head 534 is connected to an external nitrogen supply pipe, and a dust sensor 533 is used to detect dust in the inner cavity of the shell 51. When the shell When dust exists in the inner cavity of the body 51, nitrogen is sprayed by the nozzle 532 to flush the surface of the focusing lens group 54. When the laser generator 55 in the inner cavity of the shell 51 in the laser cutting head body 5 is working, the laser is emitted through the focusing lens group 54, and the dust reduction component 57 is used to reduce dust on both sides of the laser irradiation path. The spray head 755 is connected to the connecting joint 572 by the water pipe 573, and the joint 572 is connected to the external water pump, and the joint 572 is used to spray water mist on both sides of the laser irradiation path to reduce dust, so as to achieve the effect of reducing dust on both sides of the laser irradiation path, and the solenoid valve 754 is used to control the spraying of water mist, wherein the L-shaped protective cover 571 is limitedly connected to the outer diameter surface of the shell 51 by the limiting plate 56, so as to fix the dust reduction component 57.

Claims

1. A dustproof laser cutting head, comprising a base plate (1), a servo drive motor (2), a moving module (3), a fixing plate (4) and a laser cutting head body (5), characterized in that: The servo drive motor (2) is mounted on one side of the base plate (1), and a moving module (3) is provided on the side end surface of the base plate (1); a fixed plate (4) is provided on the moving end of the moving module (3), and a laser cutting head body (5) is provided on the bottom end surface of the fixed plate (4); the laser cutting head body (5) is connected to the fixed plate (4) by bolts through a limiting plate (6); the laser cutting head body (5) comprises a shell (51), a dust removal component (52) and a self-cleaning component (53); the shell (51) is mounted on the bottom end surface of the limiting plate (6), and the side wall of the shell (51) is provided with the dust removal component (52); the inner cavity of the shell (51) is provided with the self-cleaning component (53), and the bottom end surface of the inner cavity of the shell (51) is provided with a focusing lens group (54); a laser generator (55) is provided directly above the focusing lens group (54); and the side end surface of the shell (51) is connected to the dust reduction component (57) through the limiting plate (56).

2. The dustproof laser cutting head according to claim 1, characterized in that: The dust exhaust component (52) comprises a one-way air inlet (521) and a one-way dust exhaust port (522); the one-way air inlet (521) is provided through the side end surface of the housing (51); a one-way dust exhaust port (522) is provided below the one-way air inlet (521); filters are provided on the inner sides of the one-way air inlet (521) and the one-way dust exhaust port (522); and a micro centrifugal dust exhaust fan (523) is provided on the inner side of the one-way dust exhaust port (522).

3. The dustproof laser cutting head according to claim 1, characterized in that: The self-cleaning component (53) comprises an air jet connecting pipe (531) and a nozzle (532); the air jet connecting pipe (531) is installed on both sides above the focusing lens group (54); the air jet end of the air jet connecting pipe (531) is provided with a nozzle (532); a dust sensor (533) is provided on one side of the nozzle (532); and the air jet connecting pipe (531) is connected to an air supply head (534).

4. The dustproof laser cutting head according to claim 1, characterized in that: The dust suppression assembly (57) comprises an L-shaped protective cover (571) and a joint (572); the L-shaped protective cover (571) is mounted on a side of the limiting plate (56) away from the housing (51); a joint (572) is provided on a side end surface of the L-shaped protective cover (571); and the joint (572) is connected to a water pipe (573); the water pipe (573) is L-shaped, and two groups of water pipes (573) are provided. An electromagnetic valve (754) is provided on the outer diameter surface of the water pipe (573); and a spray head (755) is provided on one end of the water pipe (573) away from the joint (572).

5. The dustproof laser cutting head according to claim 2, characterized in that: The one-way air inlet (521) forms a communicating connection structure with the one-way dust exhaust port (522) through the shell (51), and the air intake direction of the one-way air inlet (521) is one side of the one-way air inlet (521) facing the inner cavity of the shell (51), and the one-way air inlet (521) and the one-way dust exhaust port (522) have opposite flow directions.

6. The dustproof laser cutting head according to claim 3, characterized in that: The jet connecting pipe (531) and the nozzle (532) form a connecting structure, and the jet connecting pipe (531) and the air supply head (534) form a connecting structure. The self-cleaning assembly (53) is provided with two groups, and the nozzle (532) is arranged at an angle, and the ejection end of the nozzle (532) faces the center of the upper end surface of the focusing lens group (54).

7. The dustproof laser cutting head according to claim 4, characterized in that: The joint (572) and the water pipe (573) form a communicating connection structure, and the water pipe (573) and the spray head (755) form a communicating connection structure. The spray head (755) is arranged obliquely, and two groups of the water pipe (573), the solenoid valve (754) and the spray head (755) are provided.

8. The dustproof laser cutting head according to claim 5, characterized in that: Two groups of the one-way air inlet (521) and the one-way dust exhaust port (522) are provided, and the one-way air inlet (521) and the one-way dust exhaust port (522) are symmetrically arranged, and the micro centrifugal dust exhaust fan (523) in the dust exhaust component (52) is electrically connected to the PLC controller.

9. The dustproof laser cutting head according to claim 6, characterized in that: The nozzle (532) is connected to an external nitrogen supply pipe via an air jet connecting pipe (531) and an air supply head (534), and the dust sensor (533) is electrically connected to a PLC controller.

10. The dustproof laser cutting head according to claim 7, characterized in that: The L-shaped protective cover (571) in the dust suppression component (57) is connected to the limit plate (6) via bolts to form a bolt connection structure; the spray head (755) is connected to an external water supply pipe via a water pipe (573) and a joint (572); and the solenoid valve (754) is electrically connected to a PLC controller.

Images