CN210817960U - Laser processing gas circuit homogenizing device and laser processing equipment - Google Patents
Laser processing gas circuit homogenizing device and laser processing equipment Download PDFInfo
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- CN210817960U CN210817960U CN201921892269.XU CN201921892269U CN210817960U CN 210817960 U CN210817960 U CN 210817960U CN 201921892269 U CN201921892269 U CN 201921892269U CN 210817960 U CN210817960 U CN 210817960U
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Abstract
The utility model discloses a laser beam machining gas circuit homogenizing device and laser beam machining equipment belongs to laser beam machining technical field. The laser processing equipment comprises a laser processing gas circuit homogenizing device which comprises a focusing protective mirror assembly and a gas circuit homogenizing assembly. The focusing protective lens assembly comprises an upper connecting seat and a lower connecting seat which are arranged up and down, the upper connecting seat and the lower connecting seat are both of hollow structures, a protective lens is horizontally arranged in the upper connecting seat, and the edge of the protective lens is connected with the inner wall of the upper connecting seat in a sealing mode. The gas path homogenizing assembly can homogenize gas flow in the lower connecting seat, blow the homogenized gas flow to the protective mirror, and blow the homogenized gas flow out of the bottom of the lower connecting seat after being reflected by the protective mirror. The utility model discloses a molten metal is blown away rapidly to even steady high velocity air, can improve the laser cutting quality.
Description
Technical Field
The utility model relates to a laser beam machining technical field especially relates to a laser beam machining gas circuit homogenizing device and laser beam machining equipment.
Background
In the laser cutting process, the laser is used for instantly melting steel by utilizing high energy and rapidly blowing away the molten metal by utilizing high-speed airflow, so that a fine slot is formed on the surface of the metal plate, and the plate is cut. Therefore, the uniformity and smoothness of the air flow during the cutting process have great influence on the size of the cutting seam, the shape of the cross section, the roughness and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a laser beam machining gas circuit homogenizing device can improve the stationarity of air current to the air current homogenization to can improve laser cutting's quality.
Another object of the utility model is to provide a laser beam machining equipment can improve the stationarity of air current to the air current homogenization to can improve laser cutting's quality.
To achieve the purpose, the utility model adopts the following technical proposal:
a laser processing gas circuit homogenizing device comprises:
the focusing protection mirror assembly comprises an upper connecting seat and a lower connecting seat which are arranged up and down, the upper connecting seat and the lower connecting seat are both of hollow structures, a protection mirror is horizontally arranged in the upper connecting seat, and the edge of the protection mirror is hermetically connected with the inner wall of the upper connecting seat;
the gas path homogenizing assembly can homogenize gas flow in the lower connecting seat, blow the homogenized gas flow to the protective mirror and blow the homogenized gas flow out of the bottom of the lower connecting seat after being reflected by the protective mirror.
Preferably, the gas path homogenizing assembly comprises a gas inner ring, outer walls at two ends of the gas inner ring are hermetically connected with the inner wall of the lower connecting seat, an annular gas flow groove is formed between the outer wall of the middle section and the inner wall of the lower connecting seat, a plurality of gas holes which incline upwards to the protective mirror are arranged on the gas inner ring wall, and the plurality of gas holes are uniformly distributed along the circumferential direction of the gas inner ring and are communicated with the gas flow groove; the airflow groove is communicated with an external airflow source.
Preferably, the inclination angle of the air holes is 45 degrees.
Preferably, the gas path homogenizing assembly further comprises a gas homogenizing block, the gas homogenizing block comprises an air inlet channel and at least two air outlet channels communicated with the air inlet channel, and the air outlet channels are respectively communicated with the airflow grooves.
Preferably, the outer walls at the two ends of the gas inner ring are respectively provided with a first sealing groove and a second sealing groove, so that the outer walls at the two ends of the gas inner ring are in sealing connection with the lower connecting seats.
Preferably, the focusing protective lens assembly further comprises a support frame, the support frame is provided with a through hole, the protective lens is arranged in the through hole, and the support frame is detachably arranged in the upper connecting seat.
Preferably, the side part of the upper connecting seat is provided with a sliding groove communicated with the interior of the upper connecting seat, and the support frame is arranged in the upper connecting seat through the sliding groove.
Preferably, a pressing ring and a sealing ring are arranged in the supporting frame, the pressing ring is located above the protective glasses, the sealing ring is located below the protective glasses, and the pressing ring, the sealing ring and the protective glasses can pass through the supporting frame and slide out of the sliding groove.
Preferably, an exhaust passage is formed in the upper connecting seat, one end of the exhaust passage is communicated with the joint of the pressing ring and the protective glasses, a one-way valve communicated with the outside is arranged at the other end of the exhaust passage, and the one-way valve is used for discharging airflow flowing out of the joint of the pressing ring and the protective glasses.
A laser processing device comprises the laser processing gas path homogenizing device.
The utility model has the advantages that:
the utility model discloses laser beam machining gas circuit homogenizing device includes focus protection mirror subassembly and gas circuit homogenization subassembly, focus protection mirror subassembly includes upper connecting seat and the lower connecting seat that sets up from top to bottom, the level is provided with the protective glass in the upper connecting seat, gas circuit homogenization subassembly can blow the air current to the protective glass after the homogenization in the lower connecting seat, and blow off from the bottom in the lower connecting seat after the protective glass reflection, the air current can be evenly steady flow through the protective glass reflection after the homogenization, blow away the molten metal rapidly through even steady high-speed air current, can improve the laser cutting quality; meanwhile, when the airflow blows to the protective glasses, the protective glasses can be prevented from being polluted by dust deposited on the protective glasses, heat generated by the protective glasses can be taken away, and the service life of the protective glasses is prolonged.
Drawings
Fig. 1 is a schematic perspective view of a laser processing gas path homogenizing device according to an embodiment of the present invention;
fig. 2 is a schematic top view of a laser processing gas path homogenizing device according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view of the upper connecting seat at B-B in FIG. 2;
fig. 5 is an exploded schematic view of an upper connecting seat of a laser processing gas path homogenizing device according to an embodiment of the present invention.
In the figure: 1-a lower connecting seat, 2-an upper connecting seat, 3-a one-way valve, 4-an air homogenizing block, 5-a support frame, 6-a pressing ring, 7-a protective mirror, 8-a sealing ring, 9-an airflow groove, 10-an air inner ring, 101-an air hole, 102-a first sealing groove, 103-a second sealing groove and 11-an exhaust channel.
Detailed Description
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 5.
The laser processing equipment in the embodiment comprises a laser processing gas path homogenizing device. As shown in fig. 1 to 3, the laser processing gas path homogenizing device comprises a focusing protective mirror assembly and a gas path homogenizing assembly. The focusing protection mirror assembly in the embodiment is used for protecting a focusing mirror of the laser cutting head, is arranged below the focusing mirror and is positioned above the nozzle.
The focusing protective glass assembly comprises an upper connecting seat 2 and a lower connecting seat 1 which are arranged from top to bottom, the upper connecting seat 2 and the lower connecting seat 1 are of a hollow structure, a protective glass 7 is horizontally arranged in the upper connecting seat 2, and the edge of the protective glass 7 is connected with the inner wall of the upper connecting seat 2 in a sealing mode.
The air path homogenizing assembly can homogenize air flow in the lower connecting seat 1, blow the air flow to the protective mirror 7, and blow the air flow out of the bottom in the lower connecting seat 1 after being reflected by the protective mirror 7.
The gas circuit homogenizing assembly of this embodiment can blow the air current to the protective glass after the homogenization in lower connecting seat 1 to blow off from the bottom in lower connecting seat 1 after the protective glass reflection, the air current can even steady outflow through the reflection of protective glass 7 after the homogenization, blows away fused metal rapidly through even steady high-speed air current, can improve laser cutting quality. Meanwhile, the airflow blows to the protective glasses 7, so that the protective glasses 7 can be prevented from being polluted by dust deposited on the protective glasses, heat generated by the protective glasses can be taken away, and the service life of the protective glasses is prolonged.
As shown in fig. 3, in order to realize the homogenization of the air flow, the air passage homogenization assembly includes an air inner ring 10, the air inner ring 10 is disposed in the lower connecting seat 1, the outer walls of both ends of the air inner ring 10 are hermetically connected with the inner wall of the lower connecting seat 1, an annular air flow groove 9 is formed between the outer wall of the middle section and the inner wall of the lower connecting seat 1, a plurality of air holes 101 are disposed on the wall of the air inner ring 10, and are inclined upward toward the protective mirror 7, and the plurality of air holes 101 are uniformly distributed along the circumferential direction of the air inner ring 10 and are communicated with the air flow; the airflow groove 9 is communicated with an external airflow source. After the airflow is uniformly dispersed in the airflow groove 9, the airflow is further homogenized through the air holes 101, and the stability of the airflow is ensured.
In order to improve the homogenization effect of the gas flow, the inclination angle of the gas holes 101 is optionally 45 degrees. Tests show that when the inclination angle of the air holes 101 is 45 degrees, the homogenization effect of the air flow is relatively good. Further, the number of the air holes 101 is set to 4.
In order to further improve the homogenization effect of the air flow, the air path homogenization assembly further comprises an air homogenizing block 4, the air homogenizing block 4 comprises an air inlet channel and at least two air outlet channels communicated with the air inlet channel, and the air outlet channels are respectively communicated with the air flow grooves 9. The air homogenizing block 4 divides one path of air flow into two paths, can ensure that the air flow is not blocked, blows the air flow into the air flow groove 9 through two paths of air outlet channels, and can enable the air flow to uniformly surround the air flow groove 9.
The diameter of the air hole 101 is related to the diameter of the air inlet channel, and optionally, the diameter of the air inlet channel is set to be 8mm, and the diameter of the air hole 101 is set to be 2 mm. It is understood that the diameters of the intake passage and the air hole 101 are not limited thereto.
In order to make the air flow in the air flow groove 9 only flow out of the air holes 101 and prevent the air flow in the air flow groove 9 from leaking and affecting the homogenization effect of the air flow, the outer walls at the two ends of the air inner ring 10 are respectively provided with a first sealing groove 102 and a second sealing groove 103, so that the outer walls at the two ends of the air inner ring 10 are in sealing connection with the lower connecting seat 1. Specifically, a seal is disposed within the first seal groove 102.
As shown in fig. 4 and 5, in order to facilitate the cleaning and replacement of the protective glasses 7, the focusing protective glasses 7 assembly further comprises a support frame 5, the support frame 5 is provided with a through hole, the protective glasses 7 are arranged in the through hole, and the support frame 5 is detachably arranged in the upper connecting seat 2.
Specifically, the side portion of the upper connecting seat 2 is provided with a chute communicated with the inside of the upper connecting seat, and the support frame 5 is arranged in the upper connecting seat 2 through the chute. The protective glasses 7 can be more conveniently mounted and dismounted by mounting and dismounting the support frame 5 from the side part.
In order to improve sealed effect, prevent that the air current from upwards through the junction of protective glass 7 with last connecting seat 2, pollute other lenses, be provided with clamping ring 6 and sealing washer 8 in the support frame 5, clamping ring 6 is located protective glass 7 top, and the third seal groove has been seted up at the top of clamping ring 6, can further improve sealed effect, prevents that the air current from getting into other positions of laser cutting head. The sealing ring 8 is located the protective glass 7 below, and clamping ring 6, sealing ring 8 and protective glass 7 homoenergetic are passed through support frame 5 and are slided out by the spout. When the lens is required to be disassembled, the support frame 5 slides out of the upper connecting seat 2, the pressing ring 6 is taken down, the lens can be taken out, frequent disassembly of the sealing ring 8 is avoided, and the service life is prolonged.
If the air current flows out from the joint of the pressing ring 6 and the protective mirror 7, in order to discharge the air current, an exhaust channel 11 is arranged in the upper connecting seat 2, one end of the exhaust channel 11 is communicated with the joint of the pressing ring 6 and the protective mirror 7, the other end of the exhaust channel is provided with a one-way valve 3 communicated with the outside, and the one-way valve 3 is used for discharging the air current flowing out from the joint of the pressing ring 6 and the protective mirror 7. The arrangement of the one-way valve 3 can prevent external dust from entering the focusing protective lens 7 assembly, leaked air flow can be discharged through the exhaust channel 11, the pressure inside the laser cutting head cannot rise, and other lenses are prevented from being damaged.
The utility model discloses laser beam machining gas circuit homogenizing device includes focus protective glass 7 subassembly and gas circuit homogenizing assembly, focus protective glass subassembly includes upper connecting seat 2 and lower connecting seat 1 that sets up from top to bottom, the level is provided with protective glass 7 in the upper connecting seat 2, gas circuit homogenizing assembly can blow the air current to the protective glass after homogenizing in lower connecting seat 1, and blow off from the bottom in lower connecting seat 1 after the protective glass reflection, and through the setting of air current groove 9 and even gas piece 4, make the air current homogenizing effect better, the air current can be even steady outflow through the reflection of protective glass 7 after homogenizing, blow away fused metal rapidly through even steady high-speed air current, can improve laser cutting quality; meanwhile, when the airflow blows to the protective glasses 7, the protective glasses 7 can be prevented from depositing dust to pollute the lenses, heat generated by the lenses can be taken away, and the service lives of the lenses are prolonged. In addition, the protective glasses 7 are detached through the supporting frames 5, so that the detachment is more convenient.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A laser processing gas circuit homogenizing device is characterized by comprising:
the focusing protection mirror assembly comprises an upper connecting seat (2) and a lower connecting seat (1) which are arranged up and down, the upper connecting seat (2) and the lower connecting seat (1) are both of hollow structures, a protection mirror (7) is horizontally arranged in the upper connecting seat (2), and the edge of the protection mirror (7) is hermetically connected with the inner wall of the upper connecting seat (2);
the air path homogenizing assembly can homogenize air flow in the lower connecting seat (1), blow the air flow to the protective mirror (7), and blow the air flow out of the bottom in the lower connecting seat (1) after being reflected by the protective mirror (7).
2. The laser processing gas path homogenizing device according to claim 1, wherein the gas path homogenizing assembly comprises a gas inner ring (10), the gas inner ring (10) is disposed in the lower connecting seat (1), outer walls of two ends of the gas inner ring (10) are hermetically connected with an inner wall of the lower connecting seat (1), an annular gas flow groove (9) is formed between an outer wall of a middle section and the inner wall of the lower connecting seat (1), a plurality of gas holes (101) which are inclined upwards towards the protective mirror (7) are disposed on the wall of the gas inner ring (10), and a plurality of the gas holes (101) are uniformly distributed along the circumferential direction of the gas inner ring (10) and are communicated with the gas flow groove (9); the airflow groove (9) is communicated with an external airflow source.
3. The gas path homogenizing device for laser processing according to claim 2, wherein the inclination angle of the gas hole (101) is 45 degrees.
4. The gas path homogenizing device for laser processing according to claim 2, wherein the gas path homogenizing assembly further comprises a gas homogenizing block (4), the gas homogenizing block (4) comprises an inlet channel and at least two outlet channels communicated with the inlet channel, and the outlet channels are respectively communicated with the gas flow grooves (9).
5. The gas path homogenizing device for laser processing according to claim 2, wherein the outer walls at two ends of the gas inner ring (10) are respectively provided with a first sealing groove (102) and a second sealing groove (103) so that the outer walls at two ends of the gas inner ring (10) are in sealing connection with the lower connecting base (1).
6. The gas path homogenizing device for laser processing according to any one of claims 1 to 5, wherein the focusing protective mirror assembly further comprises a support frame (5), the support frame (5) is provided with a through hole, the protective mirror (7) is arranged in the through hole, and the support frame (5) is detachably arranged in the upper connecting seat (2).
7. The gas path homogenizing device for laser processing according to claim 6, wherein the side of the upper connecting seat (2) is provided with a sliding groove communicated with the inside thereof, and the supporting frame (5) is arranged in the upper connecting seat (2) through the sliding groove.
8. The laser processing gas circuit homogenizing device according to claim 7, wherein a pressing ring (6) and a sealing ring (8) are arranged in the support frame (5), the pressing ring (6) is located above the protective mirror (7), the sealing ring (8) is located below the protective mirror (7), and the pressing ring (6), the sealing ring (8) and the protective mirror (7) can slide out of the chute through the support frame (5).
9. The gas path homogenizing device for laser processing according to claim 8, wherein an exhaust channel (11) is formed in the upper connecting seat (2), one end of the exhaust channel (11) is communicated with a joint of the pressing ring (6) and the protective mirror (7), and the other end of the exhaust channel is provided with a check valve (3) communicated with the outside, and the check valve (3) is used for exhausting gas flow flowing out of the joint of the pressing ring (6) and the protective mirror (7).
10. A laser processing apparatus comprising the laser processing gas path homogenizing device of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921892269.XU CN210817960U (en) | 2019-11-05 | 2019-11-05 | Laser processing gas circuit homogenizing device and laser processing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921892269.XU CN210817960U (en) | 2019-11-05 | 2019-11-05 | Laser processing gas circuit homogenizing device and laser processing equipment |
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| CN210817960U true CN210817960U (en) | 2020-06-23 |
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| CN201921892269.XU Active CN210817960U (en) | 2019-11-05 | 2019-11-05 | Laser processing gas circuit homogenizing device and laser processing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535843A (en) * | 2022-03-22 | 2022-05-27 | 北京航空航天大学 | Laser processing auxiliary device based on focusing objective lens |
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2019
- 2019-11-05 CN CN201921892269.XU patent/CN210817960U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535843A (en) * | 2022-03-22 | 2022-05-27 | 北京航空航天大学 | Laser processing auxiliary device based on focusing objective lens |
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