CN213457551U - Diaphragm assembly - Google Patents
Diaphragm assembly Download PDFInfo
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- CN213457551U CN213457551U CN202022312215.0U CN202022312215U CN213457551U CN 213457551 U CN213457551 U CN 213457551U CN 202022312215 U CN202022312215 U CN 202022312215U CN 213457551 U CN213457551 U CN 213457551U
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- wall surface
- laser
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- wall
- diaphragm assembly
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Abstract
An embodiment of the utility model provides a diaphragm assembly, include: an inner ring, an inner wall of the inner ring comprising: the laser beam splitter comprises a first wall surface and a second wall surface which are connected with each other, wherein the first wall surface is in a conical surface structure so as to reflect laser incident to the first wall surface to the second wall surface, and the second wall surface is in a tooth-shaped structure so as to absorb the laser reflected to the second wall surface. The embodiment of the utility model provides a diaphragm subassembly reflects laser beam through setting the inner circle with the diaphragm to the circular cone, sets the profile of tooth structure to the face that will absorb to increase laser absorption effect, solved reflection laser and spilled over outside the diaphragm, to the harm that other objects caused the influence, strengthened the suitability of laser instrument.
Description
Technical Field
The utility model relates to a laser diaphragm technical field especially relates to a diaphragm subassembly.
Background
In the field of laser physics, a diaphragm is an aperture device used to limit the diameter of a beam.
With the rapid development of the laser industry and the application, the applications of laser cutting, welding, marking, carving and the like are widely developed in various industries. At present, the power of a high-power laser reaches more than 3 ten thousand watts, and if a traditional single-chip type or variable diaphragm is adopted, when laser blocked by the diaphragm reaches thousands of watts, the physical structure of the diaphragm is irreversibly damaged due to the absorption effect of the diaphragm on the laser. And the diaphragm can not absorb the laser completely, the laser that reflects out also can have several hundred watts even kilowatts, can cause the damage to the object of diaphragm periphery, if there are other laser detection class instruments in the periphery, can cause the detection error because of the laser that overflows from the diaphragm. Therefore, the problem to be solved is to improve the structure of the diaphragm and improve the absorption of the reflected laser.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a diaphragm subassembly for solve among the prior art diaphragm to the unable all absorptive defects of laser after the reflection.
An embodiment of the utility model provides a diaphragm assembly, include: an inner ring, an inner wall of the inner ring comprising: the laser beam splitter comprises a first wall surface and a second wall surface which are connected with each other, wherein the first wall surface is in a conical surface structure so as to reflect laser incident to the first wall surface to the second wall surface, and the second wall surface is in a tooth-shaped structure so as to absorb the laser reflected to the second wall surface.
According to an embodiment of the present invention, the aperture assembly, the angle of the conical surface is 100 °.
According to the utility model discloses a diaphragm subassembly, the top surface of every tooth of profile of tooth structure is formed with the chamfer.
According to the utility model discloses a diaphragm subassembly, adjacent two interval between the tooth is 3 mm.
According to the utility model discloses a diaphragm subassembly, the height of tooth is 5mm, and the width is 3 mm.
According to the utility model discloses a diaphragm subassembly still includes the outer lane, the outer lane cover is established the outside of inner circle, and with the inner circle is connected.
According to the utility model discloses a diaphragm subassembly, the outer wall of inner circle is formed with the spiral groove, the spiral groove with the inner wall of outer lane constitutes spiral water course.
According to the utility model discloses a diaphragm assembly, the lateral wall of outer lane is formed with water inlet and delivery port, the water inlet with the delivery port respectively with spiral water course intercommunication.
According to the utility model discloses a diaphragm subassembly still includes the sealing washer, the sealing washer sets up the outer lane with between the inner circle.
According to the utility model discloses a diaphragm subassembly, the surface of outer lane with the second wall is through black oxidation treatment.
The embodiment of the utility model provides a diaphragm subassembly reflects laser beam through setting the inner circle with the diaphragm to the circular cone, sets the profile of tooth structure to the face that will absorb to increase laser absorption effect, solved reflection laser and spilled over outside the diaphragm, to the harm that other objects caused the influence, strengthened the suitability of laser instrument.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic mechanical diagram of a diaphragm assembly according to an embodiment of the present invention;
fig. 2 is a perspective view of the diaphragm assembly shown in fig. 1.
Reference numerals:
1: an inner ring; 2: an outer ring; 3: a seal ring; 11: a first wall surface; 12: a second wall surface; 13: the diameter of the hole; 14: a spiral water channel; 21: a water inlet; 22: a water outlet; a reflects light.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A diaphragm assembly according to an embodiment of the present invention is described below with reference to fig. 1 to 2.
As shown in fig. 1 and 2, in an embodiment of the present invention, the diaphragm assembly includes an inner ring 1, and an inner wall of the inner ring 1 includes a first wall surface 11 and a second wall surface 12 connected to each other. The first wall 11 extends in the direction of the inner wall along the aperture 13 of the inner ring 1, forming a conical inner wall which reflects the laser beam incident thereon onto the second wall 12. The second wall surface 12 is formed with a tooth-shaped structure capable of absorbing all the laser light reflected thereon.
Specifically, after the laser beam enters the diaphragm, a part of the beam exits through the aperture 13, and the diverging beam enters the first wall surface 11, and the first wall surface 11 is disposed in a conical surface, so that the laser beam entering the first wall surface 11 can be reflected to the second wall surface 12.
As shown in fig. 1, a represents the process of the reflected light rays being absorbed by the second wall 12 after being reflected continuously. Specifically, the second wall surface 12 is formed with a tooth structure, and a groove is formed between two adjacent teeth. The laser is reflected by the first wall surface 11 and then enters the groove of the tooth-shaped structure of the second wall surface 12, and then is continuously reflected on the tooth walls at the two sides until being completely absorbed.
Further, in an embodiment of the present invention, the inner ring 1 is made of an aluminum alloy material with good thermal conductivity, and the surface and the second wall surface 12 are treated by black oxidation to facilitate the absorption of laser. The first wall surface 11 is a reflection surface, and mirror finishing is adopted to maintain the natural color of the aluminum alloy so as to enhance the reflection effect.
The embodiment of the utility model provides a diaphragm subassembly reflects laser beam through setting the inner circle with the diaphragm to the circular cone, sets the profile of tooth structure to the face that will absorb to increase laser absorption effect, solved reflection laser and spilled over outside the diaphragm, to the harm that other objects caused the influence, strengthened the suitability of laser instrument.
As shown in fig. 1, the specific angle of the conical surface formed by the first wall surface 11 can be set according to the divergence angle of the incident light beam. When the divergence angle of the incident beam is relatively large, the angle of the conical surface should also be relatively large, so that the blocked incident beam can be totally incident on the conical surface. Further, in one embodiment of the present invention, the incident beam has a divergence angle of about 12 ° and the conical surface thereof has an angle set to 100 °.
As shown in fig. 1, in an embodiment of the present invention, optionally, the second wall 12 forms a tooth-shaped structure, each tooth has a height of 5mm and a width of 3mm, and the distance between every two adjacent teeth is 3 mm. Meanwhile, the top surface of each tooth is formed with a chamfer, specifically, in one embodiment of the present invention, optionally, the chamfer is 45 °.
Specifically, the laser light incident on the first wall surface 11 is totally reflected into a groove formed by two adjacent teeth of the tooth-shaped structure, and in the groove, the laser light is incident on the tooth wall, reflected to the adjacent tooth wall, and repeatedly reflected until the laser light is totally absorbed.
It should be noted that: the tooth height, width, interval and the chamfer of the addendum face of profile of tooth structure can set up according to specific operating mode, and not only confine the size that an embodiment of the utility model lists.
As shown in fig. 1 and fig. 2, in an embodiment of the present invention, the diaphragm assembly further includes an outer ring 2, and the outer ring 2 is sleeved on the inner ring 1 and connected to the inner ring 1.
Specifically, in one embodiment of the present invention, the inner ring 1 is a cylindrical member with a flange, and a threaded hole is formed in the flange. The outer ring 2 is also a cylindrical member with a flange, and a threaded hole is formed in the flange, and the outer ring 2 and the inner ring 1 are fixedly connected by a screw passing through the threaded hole.
Further, the inner ring 1 and the outer ring 2 may also be straight cylindrical members without flanges, which may be fixedly connected by interference fit or welding.
Further, the outer ring 2 is made of aluminum alloy with good heat conductivity, and the surface of the outer ring is subjected to black oxidation treatment so as to facilitate absorption of laser.
Further, in an embodiment of the present invention, the diaphragm assembly further includes a sealing ring 3, the sealing ring 3 is disposed between the inner ring 1 and the outer ring 2, specifically, the sealing ring 3 is disposed between two flanges of the inner ring 1 and the outer ring 2, and between end surfaces of the inner ring 1 and the outer ring 2, so as to enhance the sealing performance between the inner ring 1 and the outer ring 2. Optionally, in an embodiment of the present invention, the sealing ring 3 is an O-ring.
As shown in fig. 1 and 2, in an embodiment of the present invention, the outer wall of the inner ring 1 is formed with a spiral groove, which is configured with the inner wall of the outer ring 1 as a spiral water channel 14. The side wall of the outer ring 2 is formed with a water inlet 21 and a water outlet 22, and both the water inlet 21 and the water outlet 22 are communicated with the spiral water channel 14.
Specifically, cooling water enters the spiral water channel 14 from the water inlet 21, heat generated after the second wall surface 12 absorbs laser is taken away, and the heated cooling water flows out through the water outlet 22, so that the diaphragm assembly is cooled.
The embodiment of the utility model provides a diaphragm subassembly through forming the spiral water course between inner circle and outer lane, cools down to the second wall, has avoided the diaphragm high temperature and has leaded to the problem appearance that the laser instrument damaged.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A diaphragm assembly, comprising: an inner ring, an inner wall of the inner ring comprising: the laser beam splitter comprises a first wall surface and a second wall surface which are connected with each other, wherein the first wall surface is in a conical surface structure so as to reflect laser incident to the first wall surface to the second wall surface, and the second wall surface is in a tooth-shaped structure so as to absorb the laser reflected to the second wall surface.
2. The diaphragm assembly of claim 1 wherein the angle of the conical surface is 100 °.
3. The diaphragm assembly of claim 1 wherein the top surface of each tooth of the tooth-like structure is formed with a chamfer.
4. The diaphragm assembly of claim 3 wherein the spacing between adjacent teeth is 3 mm.
5. The diaphragm assembly of claim 3 wherein the teeth are 5mm in height and 3mm in width.
6. The diaphragm assembly of claim 1 further comprising an outer ring disposed about the inner ring and coupled to the inner ring.
7. The diaphragm assembly of claim 6, wherein an outer wall of the inner ring is formed with a helical groove configured with a helical waterway with an inner wall of the outer ring.
8. The diaphragm assembly of claim 7, wherein a side wall of the outer ring is formed with a water inlet and a water outlet, the water inlet and the water outlet being in communication with the spiral water channel, respectively.
9. The diaphragm assembly of claim 6 further comprising a seal ring disposed between the outer ring and the inner ring.
10. The diaphragm assembly of any of claims 6 to 9 wherein the surface of the outer ring and the second wall surface are black oxidised.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022312215.0U CN213457551U (en) | 2020-10-16 | 2020-10-16 | Diaphragm assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022312215.0U CN213457551U (en) | 2020-10-16 | 2020-10-16 | Diaphragm assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213457551U true CN213457551U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022312215.0U Active CN213457551U (en) | 2020-10-16 | 2020-10-16 | Diaphragm assembly |
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| CN (1) | CN213457551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458626A (en) * | 2021-08-02 | 2021-10-01 | 上海波刺自动化科技有限公司 | Stray light absorbing device |
| CN113885111A (en) * | 2021-09-29 | 2022-01-04 | 深圳市先地图像科技有限公司 | Diaphragm and laser |
-
2020
- 2020-10-16 CN CN202022312215.0U patent/CN213457551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458626A (en) * | 2021-08-02 | 2021-10-01 | 上海波刺自动化科技有限公司 | Stray light absorbing device |
| CN113885111A (en) * | 2021-09-29 | 2022-01-04 | 深圳市先地图像科技有限公司 | Diaphragm and laser |
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