CN210878123U - Laser cutting head and laser processing equipment - Google Patents
Laser cutting head and laser processing equipment Download PDFInfo
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- CN210878123U CN210878123U CN201921481932.7U CN201921481932U CN210878123U CN 210878123 U CN210878123 U CN 210878123U CN 201921481932 U CN201921481932 U CN 201921481932U CN 210878123 U CN210878123 U CN 210878123U
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Abstract
The utility model discloses a laser cutting head and laser beam machining equipment belongs to laser cutting technical field. The laser machining apparatus includes a laser cutting head. The laser cutting head comprises a water cooling channel, and the water cooling channel comprises a main water inlet cooling channel, a main water outlet cooling channel and a collimating mirror branch channel. The main water inlet cooling channel is sequentially arranged in the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the lower protective mirror assembly in a penetrating mode. The main water outlet cooling channel sequentially penetrates through the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the lower protective mirror assembly, and the water outlet of the main water inlet cooling channel is connected with the water inlet of the main water outlet cooling channel. The collimating mirror assembly comprises a collimating up-down moving ring, a collimating mirror branch channel is arranged in the collimating up-down moving ring, a water inlet of the collimating mirror branch channel is communicated with the main water inlet cooling channel, and a water outlet of the collimating mirror branch channel is communicated with the main water outlet cooling channel. The utility model discloses make the cooling effect better, can be applied to powerful laser cutting head.
Description
Technical Field
The utility model relates to a laser cutting technical field especially relates to a laser cutting head and laser processing equipment.
Background
The laser cutting machine utilizes laser beams to cut workpieces, the main principle is that the energy of laser is utilized to be concentrated into a high-density beam in a light form, the beam is transmitted to a working surface to generate enough energy to melt materials so as to achieve the purposes of cutting and carving, the laser cutting machine has the characteristics of high precision, high cutting speed, no limitation to cutting patterns, automatic typesetting, material saving, smooth cut, low processing cost and the like, and is widely applied in recent years.
The laser cutting head is the important component part of laser cutting machine, and the laser cutting head on the market is mainly concentrated on medium and low power at present, and the power of laser cutting head is bigger, and the corresponding sheet metal that can cut thickness just is bigger more, consequently, the demand to powerful laser cutting head is bigger and bigger on the market. However, the larger the power of the laser cutting head is, the more serious the heating of the lens in the laser cutting head is, the poor cooling effect of the existing laser cutting head reduces the service life of the lens, and the smooth cutting of the laser cutting head is not facilitated.
Therefore, a laser cutting head is needed to solve the problem of lens cooling.
Disclosure of Invention
An object of the utility model is to provide a laser cutting head, lens cooling effect in it is good to can be applicable to high-power work occasion.
Another object of the present invention is to provide a laser processing apparatus, which can reduce the heat generation of the lens, thereby being used for processing thick parts.
To achieve the purpose, the utility model adopts the following technical proposal:
a laser cutting head comprises an upper protection mirror assembly, a collimating mirror assembly, a focusing mirror assembly, a lower protection mirror assembly and a nozzle follow-up assembly which are sequentially arranged from top to bottom, and further comprises a water cooling channel, wherein the water cooling channel comprises a main water inlet cooling channel, a main water outlet cooling channel and a collimating mirror branch channel;
the primary water inlet cooling channel sequentially penetrates through the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the lower protective mirror assembly, and a primary water inlet communicated with the primary water inlet cooling channel is formed in the upper protective mirror assembly;
the main water outlet cooling channel sequentially penetrates through the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the lower protective mirror assembly, a main water outlet communicated with the main water outlet cooling channel is formed in the upper protective mirror assembly, and a water outlet of the main water inlet cooling channel is connected to a water inlet of the main water outlet cooling channel in the lower protective mirror assembly;
the collimating mirror assembly comprises a collimating up-and-down moving ring, a collimating mirror branch channel is arranged in the collimating up-and-down moving ring, a water inlet of the collimating mirror branch channel is communicated with the primary water inlet cooling channel, and a water outlet of the collimating mirror branch channel is communicated with the primary water outlet cooling channel.
Preferably, the upper collimating mirror branch channel is arranged above the collimating up-and-down moving ring, and the lower collimating mirror straight channel is arranged below the collimating up-and-down moving ring, and the upper collimating mirror branch channel is communicated with the lower collimating mirror branch channel.
Preferably, the focusing mirror assembly comprises a focusing mirror adjusting seat, the water cooling channel further comprises a focusing mirror branch channel wound on the focusing mirror adjusting seat, a water inlet of the focusing mirror branch channel is communicated with the main water inlet cooling channel, and a water outlet of the focusing mirror branch channel is communicated with the main water outlet cooling channel.
Preferably, the focusing mirror adjusting seat comprises a focusing mirror adjusting seat body and a focusing mirror adjusting seat upper cover, the outer surface of the focusing mirror adjusting seat body is provided with a step surface, the focusing mirror adjusting seat upper cover is sleeved on the focusing mirror adjusting seat body, and the focusing mirror adjusting seat upper cover and the step surface form a focusing mirror supporting channel.
Preferably, the upper protective mirror assembly comprises an upper protective mirror mounting seat with a hollow interior, the collimating mirror assembly further comprises a collimating mirror mounting seat with a hollow interior, the focusing mirror assembly further comprises a focusing mirror mounting seat with a hollow interior, the lower protective mirror assembly comprises a lower protective mirror mounting seat with a hollow interior, and the upper protective mirror mounting seat, the collimating mirror mounting seat, the focusing mirror mounting seat and the lower protective mirror mounting seat are sequentially connected;
the collimating up-and-down moving ring is arranged in the collimating lens mounting seat, and the focusing lens adjusting seat body is arranged in the focusing lens mounting seat;
the main cooling water passage that intakes includes around locating last protective glass inlet channel in the last protective glass mount pad, set up in the collimating mirror inlet channel of collimating mirror mount pad, around locating focus mirror inlet channel in the focus mirror mount pad with around locating lower protective glass inlet channel in the lower protective glass mount pad, go up protective glass inlet channel collimating mirror inlet channel focus mirror inlet channel with lower protective glass inlet channel communicates in proper order, main water inlet set up in on the last protective glass mount pad.
Preferably, the main water outlet cooling channel comprises an upper protective mirror water outlet channel arranged in the upper protective mirror mounting seat, a collimating mirror water outlet channel arranged in the collimating mirror mounting seat, a focusing mirror water outlet channel arranged in the focusing mirror mounting seat and a lower protective mirror water outlet channel arranged in the lower protective mirror mounting seat, wherein the upper protective mirror water outlet channel is communicated with the collimating mirror water outlet channel in sequence, and the main water outlet is arranged on the upper protective mirror mounting seat.
Preferably, the main water inlet cooling channel and/or the collimating mirror branch channel and/or the focusing mirror branch channel are/is provided with a flow regulating valve.
Preferably, the nozzle follower assembly comprises a nozzle, the laser cutting head further comprises a gas cooling channel, the gas cooling channel sequentially penetrates through the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly, the lower protective mirror assembly and the nozzle follower assembly, a gas inlet of the gas cooling channel is arranged on the upper protective mirror assembly, a gas outlet of the gas cooling channel is arranged on the nozzle, a plurality of gas outlets of the gas cooling channel are arranged, and the gas outlets of the plurality of gas cooling channels are uniformly distributed on the circumference of the nozzle.
Preferably, temperature sensors are disposed in the upper protective mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the lower protective mirror assembly.
A laser processing device comprises the laser cutting head.
The utility model has the advantages that:
the utility model has the advantages that the upper protection mirror assembly, the collimating mirror assembly, the focusing mirror assembly and the lower protection mirror assembly are internally provided with the main water inlet cooling channel and the main water outlet cooling channel, so that each lens can be cooled, and the main water inlet cooling channel and the main water outlet cooling channel cool simultaneously, so that the cooling effect is better; be provided with the collimating mirror branch passageway in the collimation up-and-down motion intra-annular, can further effectual cooling generate heat the lens of more serious collimating mirror for holistic cooling effect is better, thereby can be applied to powerful laser cutting head.
Drawings
Fig. 1 is a schematic perspective view of a laser cutting head according to an embodiment of the present invention;
fig. 2 is a schematic view of an explosion structure of a laser cutting head according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an explosion structure of a laser cutting head provided by an embodiment of the present invention, with a collimator lens mounting seat and a focusing lens mounting seat removed;
fig. 4 is a schematic perspective view of a lower cover plate of a laser cutting head according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of an upper protective mirror assembly of a laser cutting head according to an embodiment of the present invention;
FIG. 6 is a diagram of the distribution of the upper protective lens water inlet channel and the upper protective lens water outlet channel in the upper protective lens seat of the laser cutting head according to the embodiment of the present invention;
FIG. 7 is a schematic perspective view of a collimated up-and-down moving ring of a laser cutting head according to an embodiment of the present invention;
FIG. 8 is a schematic top view of a collimated upper and lower motion ring of a laser cutting head according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view taken along line A-A of FIG. 8;
fig. 10 is an exploded view of a laser cutting head according to an embodiment of the present invention with the collimator lens mount and the focusing lens mount removed from the head;
fig. 11 is a schematic cross-sectional view of a focusing mirror assembly of a laser cutting head according to an embodiment of the present invention without a focusing mirror mounting seat;
fig. 12 is a schematic cross-sectional view of a laser cutting head according to an embodiment of the present invention;
fig. 13 is an exploded view of a nozzle and a connecting sleeve of a laser cutting head according to an embodiment of the present invention.
In the figure:
1-an upper protective mirror assembly, 11-an upper protective mirror mounting seat, 111-an upper transfer seat, 1111-a main water inlet, 1112-a main water outlet, 1113-an air inlet of an air cooling channel, 112-an upper cover plate, 1121-a branch water outlet, and 1122-a water inlet of an upper protective mirror water outlet channel;
2-collimating mirror assembly, 21-collimating mirror mounting seat, 211-focus position display screen, 22-collimating up-down moving ring, 221-water inlet of collimating mirror branch channel, 222-water outlet of collimating mirror branch channel, 223-upper collimating mirror branch channel, 224-first through hole, 225-second through hole, 23-support, 231-water outlet pipe and 232-water inlet pipe;
3-a focusing lens assembly, 31-a focusing lens mounting seat, 32-a focusing lens adjusting seat, 321-a focusing lens adjusting seat upper cover, 3211-a water inlet of a focusing lens branch channel, 3212-a water outlet of the focusing lens branch channel, 322-a focusing lens adjusting seat body, 323-a lens mounting plug, 324-a lens mounting rack;
4-lower protective mirror assembly, 41-lower protective mirror mounting seat, 411-lower cover plate, 4111-water inlet of lower protective mirror water inlet channel, 4112-water inlet of lower protective mirror water outlet channel, 412-lower adapter;
5-nozzle follow-up component, 51-nozzle, 511-air outlet of air cooling channel, 52-connecting sleeve, 521-air flow groove;
100-gas cooling channel, 200-cutting gas channel.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention will be further explained by the following embodiments with reference to fig. 1 to 13.
The embodiment provides a laser processing apparatus including a laser cutting head. The existing laser cutting head is concentrated in medium and low power, however, the power of the laser cutting head is larger, the thickness of a metal plate capable of being cut correspondingly is larger, and therefore the demand on the laser cutting head with high power on the market is larger and larger, but the power of the laser cutting head is larger, the heating of a lens is more serious, the whole cooling effect of the existing laser cutting head is poor, and the service life of the lens is shortened.
In order to solve the above problem, as shown in fig. 1 to 3, this embodiment provides a laser cutting head with a good cooling effect, which includes an upper protective mirror assembly 1, a collimating mirror assembly 2, a focusing mirror assembly 3, a lower protective mirror assembly 4, and a nozzle follower assembly 5, which are sequentially arranged from top to bottom.
The laser cutting head also comprises a water cooling channel, wherein the water cooling channel comprises a main water inlet cooling channel, a main water outlet cooling channel and a collimating mirror branch channel.
The main water inlet cooling channel sequentially penetrates through the upper protective mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3 and the lower protective mirror assembly 4, and a main water inlet 1111 communicated with the main water inlet cooling channel is formed in the upper protective mirror assembly 1.
The main water outlet cooling channel sequentially penetrates through the upper protection mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3 and the lower protection mirror assembly 4, a main water outlet 1112 communicated with the main water outlet cooling channel is formed in the upper protection mirror assembly 1, and a water outlet of the main water inlet cooling channel is connected to a water inlet of the main water outlet cooling channel in the lower protection mirror assembly 4.
The collimating mirror assembly 2 comprises a collimating up-down moving ring 22, a collimating mirror branch channel is arranged in the collimating up-down moving ring 22, a water inlet 221 of the collimating mirror branch channel is communicated with the primary water inlet cooling channel, and a water outlet 222 of the collimating mirror branch channel is communicated with the primary water outlet cooling channel.
In this embodiment, the upper protective mirror assembly 1, the collimator mirror assembly 2, the focusing mirror assembly 3, the lower protective mirror assembly 4, and the nozzle follower assembly 5 are cooled by the dual cooling of the primary water inlet cooling channel and the primary water outlet cooling channel, so that both lenses in the laser cutting head can be cooled. The collimating mirror branch channel is arranged in the collimating up-down moving ring 22 in the collimating mirror assembly 2, so that the lens in the collimating mirror assembly 2 which generates heat seriously is further cooled, and the whole cooling effect is better.
Specifically, the upper protective mirror assembly 1 comprises an inner hollow upper protective mirror mounting seat 11, the collimating mirror assembly 2 further comprises an inner hollow collimating mirror mounting seat 21, the focusing mirror assembly 3 further comprises an inner hollow focusing mirror mounting seat 31, the lower protective mirror assembly 4 comprises an inner hollow lower protective mirror mounting seat 41, and the upper protective mirror mounting seat 11, the collimating mirror mounting seat 21, the focusing mirror mounting seat 31 and the lower protective mirror mounting seat 41 are sequentially connected. The collimating up-down moving ring 22 is disposed in the collimator mount 21.
In order to make the interior lens of laser cutting head obtain better cooling, main cooling water passageway that intakes includes around locating the last protective glass inlet channel in last protective glass mount pad 11, set up in the collimating mirror inlet channel of collimating mirror mount pad 21, around locating the focusing mirror inlet channel in focusing mirror mount pad 31 and around locating the lower protective glass inlet channel in lower protective glass mount pad 41, go up protective glass inlet channel, the collimating mirror inlet channel, focusing mirror inlet channel and lower protective glass inlet channel communicate in proper order, main water inlet 1111 sets up on last protective glass mount pad 11. The upper protective glass water inlet channel, the focusing glass water inlet channel and the lower protective glass water inlet channel are arranged in a winding mode, so that the cooling effect of the lens is better, and the temperature of the lens is uniform.
Further, the main water outlet cooling channel includes an upper protective mirror water outlet channel disposed in the upper protective mirror mounting seat 11, a collimating mirror water outlet channel disposed in the collimating mirror mounting seat 21, a focusing mirror water outlet channel disposed in the focusing mirror mounting seat 31, and a lower protective mirror water outlet channel disposed in the lower protective mirror mounting seat 41, the upper protective mirror water outlet channel, the collimating mirror water outlet channel, the focusing mirror water outlet channel, and the lower protective mirror water outlet channel are sequentially communicated, and the main water outlet 1112 is disposed on the upper protective mirror mounting seat 11. The lower protective glass assembly 4 includes a lower cover plate 411 and a lower adapter 412 disposed at the bottom of the lower cover plate 411. As shown in fig. 4, the lower protective glass water outlet channel is communicated with the lower protective glass water inlet channel, that is, the water outlet of the lower protective glass water inlet channel is communicated with the water inlet 4112 of the lower protective glass water outlet channel, so as to communicate the water outlet of the main water inlet cooling channel with the water inlet of the main water outlet cooling channel.
As shown in fig. 5 to 7, the upper protective mirror mounting base 11 includes an upper joint base 111 and an upper cover plate 112, the upper protective mirror water inlet channel includes an upper joint base water inlet channel disposed in the upper joint base 111 and an upper cover plate water inlet channel disposed in the upper cover plate 112, and the upper joint base water inlet channel is communicated with the upper cover plate 112 water inlet channel.
Specifically, go up protective glass outlet channel including around establishing the last adapter outlet channel in last adapter 111, the delivery port 222 of collimating mirror branch passageway connects in the water inlet of last adapter outlet channel through upper cover plate 112, optionally, go up the adapter outlet channel around establishing in last adapter 111 to make the delivery port 222 of collimating mirror branch passageway and the water inlet of going up the adapter outlet channel be located the homonymy, be convenient for arranging of pipeline, also can strengthen the cooling effect of the lens in the protective glass subassembly 1 simultaneously. The water inlet 221 of the collimator mirror branch channel is communicated with the upper cover plate water inlet channel, and optionally, a branch water outlet 1121 communicated with the upper cover plate water inlet channel is led out from the upper cover plate 112, and the branch water outlet 1121 is communicated with the water inlet 221 of the collimator mirror branch channel.
As shown in fig. 7 to 9, in order to improve the cooling effect of the lenses in the collimator lens assembly 2, the collimator lens sub-passages include an upper collimator lens sub-passage 223 disposed above the collimating up-down moving ring 22 and a lower collimator lens sub-passage disposed below the collimating up-down moving ring 22, and the upper collimator lens sub-passage 223 is communicated with the lower collimator lens sub-passage. Specifically, a stepped upper groove is formed at the top of the collimating upper and lower moving ring 22, and an upper collimating mirror branch passage 223 is formed with the upper groove through an upper sealing cover plate provided at the top of the upper groove. Similarly, a stepped lower groove is formed in the bottom of the collimating upper and lower moving ring 22, and a lower collimating mirror branch passage is formed by a lower sealing cover plate disposed at the bottom of the lower groove and the lower groove. The water inlet 221 of the collimating mirror branch channel is communicated with the upper collimating mirror branch channel 223, the upper collimating mirror branch channel 223 is communicated with the lower collimating mirror branch channel through a first through hole 224 axially arranged along the collimating up-down moving ring 22, and the lower collimating mirror branch channel is communicated with the water outlet 222 of the collimating mirror branch channel through a second through hole 225 axially arranged along the collimating up-down moving ring 22.
Because the outer wall of the collimator lens mounting seat 21 is thin, it is inconvenient to directly process the collimator lens water inlet channel in the collimator lens mounting seat 21, and in order to solve the above problems, as shown in fig. 3 and 10, the collimator lens mounting seat 21 is connected with a bracket 23, a water inlet pipe 232 penetrating through the bracket 23 forms the collimator lens water inlet channel, and a water outlet pipe 231 penetrating through the bracket 23 forms the collimator lens water outlet channel. Optionally, the water inlet pipe 232 and the water outlet pipe 231 are both copper pipes, so that the heat conduction effect is better.
Further, the focusing lens assembly 3 includes a focusing lens adjusting seat 32, and the focusing lens adjusting seat 32 is disposed in the focusing lens mounting seat 31. The lens in the focusing mirror subassembly 3 generates heat comparatively seriously, and in order to make the cooling effect of the lens in the focusing mirror subassembly 3 better, the water cooling channel still includes around locating the focusing mirror branch passageway on the focusing mirror adjusting seat 32, the water inlet 3211 and the main cooling channel intercommunication of intaking of the branch passageway of focusing mirror, the delivery port 3212 and the main cooling channel intercommunication of intaking of the branch passageway of focusing mirror.
As shown in fig. 11, the focusing lens adjusting seat 32 includes a focusing lens adjusting seat body 322 and a focusing lens adjusting seat upper cover 321, a step surface is disposed on an outer surface of the focusing lens adjusting seat body 322, the focusing lens adjusting seat upper cover 321 is sleeved on the focusing lens adjusting seat body 322, and a focusing lens supporting passage is formed between the focusing lens adjusting seat upper cover 321 and the step surface. The water inlet 3211 of the focusing mirror branch channel is connected to the water inlet pipe 232, and the water outlet 3212 of the focusing mirror branch channel is connected to the water outlet pipe 231. Specifically, a water inlet 3211 of the focusing mirror branch passage is connected to the water inlet pipe 232 through a joint and a pipe, and a water outlet 3212 of the focusing mirror branch passage is connected to the water outlet pipe 231 through a joint and a pipe.
Further, be provided with lens mounting bracket 324 in the focusing lens adjustment seat body 322, the lens is installed in lens mounting bracket 324, adjust the heat conduction effect in the seat body 322 in order to strengthen the focusing lens, still be provided with lens installation stopper 323 in lens mounting bracket 324, lens installation stopper 323 is screwed into lens mounting bracket 324 in through the screw thread from the bottom of lens mounting bracket 324 and is fixed the lens with lens mounting bracket 324 cooperation, in order to make the better conduction of the heat of lens to lens mounting bracket 324, thereby better cooling through the branch passageway of focusing lens, increase one and screw into lens installation stopper 323 of lens mounting bracket 324 by the top screw thread of lens mounting bracket 324.
In order to adjust the water flow of each channel according to the heating conditions of the lenses at different positions, the main water inlet cooling channel and/or the collimating mirror branch channel are/is provided with a flow adjusting valve. For example, a flow control valve may be provided on the water inlet pipe 232, or a flow control valve may be provided between the upper cover plate 112 and the water inlet 221 of the collimator branch passage.
In order to improve the cooling effect of the laser cutting head, as shown in fig. 12 and 13, the nozzle follower assembly 5 comprises a nozzle 51, the laser cutting head further comprises a gas cooling channel 100, the gas cooling channel 100 sequentially passes through the upper protective mirror assembly 1, the collimating mirror assembly 2, the focusing mirror assembly 3, the lower protective mirror assembly 4 and the nozzle follower assembly 5, a gas inlet 1113 of the gas cooling channel is arranged on the upper protective mirror assembly 1, a gas outlet 511 of the gas cooling channel is arranged on the nozzle 51, a plurality of gas outlets 511 of the gas cooling channel are provided, and the gas outlets 511 of the plurality of gas cooling channels are uniformly distributed on the circumference of the nozzle 51, and the cooling effect of the nozzle can be improved by arranging the gas outlets 511 of the plurality of gas cooling channels on the circumference of the. Preferably, a connecting sleeve 52 is connected above the nozzle 51, an air flow groove 521 is arranged on the connecting sleeve, a nozzle air channel is formed between the nozzle 51 and the air flow groove 521, an air outlet 511 of the air cooling channel is communicated with the nozzle air channel, and the nozzle air channel is communicated with the air cooling channel.
In order to facilitate monitoring of the real-time temperature of the lenses in the laser cutting head, temperature sensors are arranged in the upper protective lens assembly 1, the collimating lens assembly 2, the focusing lens assembly 3 and the lower protective lens assembly 4. Specifically, the temperature sensor may be provided in the upper protective mirror mount 11, the collimator lens mount 21, the focusing lens mount 31, or the lower protective mirror mount 41.
In order to obtain the real-time position of the laser focus and guide the worker to correctly use the focus position for processing, a focus position display screen 211 is disposed on the collimator lens mounting base 21. In addition, for the convenience of company understanding the on-site trial condition of customer laser cutting head, be provided with the signal emission antenna on the laser cutting head, regularly send the signal to the thing networking system through the chip in the circuit board to realize the on-site trial condition of accurately knowing the laser cutting head.
This embodiment can the laser cutting head cool off comprehensively through the setting of main water cooling channel and main water cooling channel, and the lens cooling in lens and the focusing mirror subassembly 3 in the comparatively serious collimating mirror subassembly 2 that generates heat can be strengthened to the branch passageway of collimating mirror and focusing mirror, further strengthens the holistic cooling to the laser cutting head through gas cooling channel again simultaneously to make holistic cooling effect better, and then can be applicable to the processing of high-power laser cutting head.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A laser cutting head comprises an upper protection mirror assembly (1), a collimating mirror assembly (2), a focusing mirror assembly (3), a lower protection mirror assembly (4) and a nozzle follow-up assembly (5) which are sequentially arranged from top to bottom, and is characterized by further comprising a water cooling channel, wherein the water cooling channel comprises a main water inlet cooling channel, a main water outlet cooling channel and a collimating mirror branch channel;
the primary water inlet cooling channel sequentially penetrates through the upper protective mirror assembly (1), the collimating mirror assembly (2), the focusing mirror assembly (3) and the lower protective mirror assembly (4), and a primary water inlet (1111) communicated with the primary water inlet cooling channel is formed in the upper protective mirror assembly (1);
the primary water outlet cooling channel sequentially penetrates through the upper protective mirror assembly (1), the collimating mirror assembly (2), the focusing mirror assembly (3) and the lower protective mirror assembly (4), a primary water outlet (1112) communicated with the primary water outlet cooling channel is formed in the upper protective mirror assembly (1), and a water outlet of the primary water inlet cooling channel is connected to a water inlet of the primary water outlet cooling channel in the lower protective mirror assembly (4);
the collimating mirror assembly (2) comprises a collimating up-down moving ring (22), a collimating mirror branch channel is arranged in the collimating up-down moving ring (22), a water inlet (221) of the collimating mirror branch channel is communicated with the main water inlet cooling channel, and a water outlet (222) of the collimating mirror branch channel is communicated with the main water outlet cooling channel.
2. The laser cutting head according to claim 1, wherein the collimator lens branch passage comprises an upper collimator lens branch passage (223) disposed above the collimating up-down moving ring (22) and a lower collimator lens straight passage disposed below the collimating up-down moving ring (22), the upper collimator lens branch passage (223) and the lower collimator lens branch passage communicating.
3. The laser cutting head according to claim 1, characterized in that the focusing mirror assembly (3) comprises a focusing mirror adjusting seat (32), the water cooling channel further comprises a focusing mirror branch channel wound around the focusing mirror adjusting seat (32), a water inlet (3211) of the focusing mirror branch channel is communicated with the primary water inlet cooling channel, and a water outlet (3212) of the focusing mirror branch channel is communicated with the primary water outlet cooling channel.
4. The laser cutting head according to claim 3, wherein the focusing lens adjusting seat (32) comprises a focusing lens adjusting seat body (322) and a focusing lens adjusting seat upper cover (321), a step surface is arranged on the outer surface of the focusing lens adjusting seat body (322), the focusing lens adjusting seat upper cover (321) is sleeved on the focusing lens adjusting seat body (322), and the focusing lens supporting channel is formed between the focusing lens adjusting seat upper cover (321) and the step surface.
5. The laser cutting head according to claim 4, characterized in that the upper protective mirror assembly (1) comprises an upper protective mirror mounting seat (11) with a hollow interior, the collimator mirror assembly (2) further comprises a collimator mirror mounting seat (21) with a hollow interior, the focusing mirror assembly (3) further comprises a focusing mirror mounting seat (31) with a hollow interior, the lower protective mirror assembly (4) comprises a lower protective mirror mounting seat (41) with a hollow interior, the upper protective mirror mounting seat (11), the collimator mirror mounting seat (21), the focusing mirror mounting seat (31) and the lower protective mirror mounting seat (41) are connected in sequence;
the collimating up-down moving ring (22) is arranged in the collimating lens mounting seat (21), and the focusing lens adjusting seat body (322) is arranged in the focusing lens mounting seat (31);
main cooling channel that intakes includes around locating go up protective glass inlet channel in protective glass mount pad (11), set up in the collimating mirror inlet channel of collimating mirror mount pad (21), around locating focus mirror inlet channel in focus mirror mount pad (31) with around locating lower protective glass inlet channel in protective glass mount pad (41), go up protective glass inlet channel the collimating mirror inlet channel focus mirror inlet channel with lower protective glass inlet channel communicates in proper order, main water inlet (1111) set up in on last protective glass mount pad (11).
6. The laser cutting head according to claim 5, wherein the main water outlet cooling channel comprises an upper protective lens water outlet channel arranged in the upper protective lens mounting seat (11), a collimating lens water outlet channel arranged in the collimating lens mounting seat (21), a focusing lens water outlet channel arranged in the focusing lens mounting seat (31), and a lower protective lens water outlet channel arranged in the lower protective lens mounting seat (41), wherein the upper protective lens water outlet channel, the collimating lens water outlet channel, the focusing lens water outlet channel and the lower protective lens water outlet channel are sequentially communicated, and the main water outlet (1112) is arranged on the upper protective lens mounting seat (11).
7. The laser cutting head of claim 3, wherein a flow regulating valve is arranged on the main water inlet cooling channel and/or the collimating mirror branch channel.
8. The laser cutting head according to claim 1, characterized in that the nozzle follower assembly comprises a nozzle (51), the laser cutting head further comprises a gas cooling channel (100), the gas cooling channel (100) passes through the upper shield mirror assembly (1), the collimator mirror assembly (2), the focusing mirror assembly (3), the lower shield mirror assembly (4) and the nozzle follower assembly (5) in sequence, a gas inlet (1113) of the gas cooling channel is arranged on the upper shield mirror assembly (1), a gas outlet (511) of the gas cooling channel is arranged on the nozzle (51), a plurality of gas outlets (511) of the gas cooling channel are provided, and the gas outlets (511) of the plurality of gas cooling channels are evenly distributed on the circumference of the nozzle (51).
9. The laser cutting head according to claim 1, characterized in that temperature sensors are provided in the upper protective mirror assembly (1), the collimator mirror assembly (2), the focusing mirror assembly (3) and the lower protective mirror assembly (4).
10. A laser machining apparatus comprising a laser cutting head as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110508942A (en) * | 2019-09-06 | 2019-11-29 | 岗春激光科技（江苏）有限公司 | Laser cutting head and laser process equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508942A (en) * | 2019-09-06 | 2019-11-29 | 岗春激光科技（江苏）有限公司 | Laser cutting head and laser process equipment |
| CN110508942B (en) * | 2019-09-06 | 2024-04-30 | 岗春激光科技（江苏）有限公司 | Laser cutting head and laser processing equipment |
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