CN211759277U - Laser cutting head - Google Patents
Laser cutting head Download PDFInfo
- Publication number
- CN211759277U CN211759277U CN202020190191.3U CN202020190191U CN211759277U CN 211759277 U CN211759277 U CN 211759277U CN 202020190191 U CN202020190191 U CN 202020190191U CN 211759277 U CN211759277 U CN 211759277U
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- Prior art keywords
- cutting nozzle
- cutting
- head
- light
- nozzle
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 230000000977 initiatory effect Effects 0.000 claims abstract 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000025925 convergent extension Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a laser cutting head, relate to the cutting technology field, it includes the condenser pipe, locate the cutting nozzle of condenser pipe lower extreme, locate the head of cutting nozzle bottom and connect the intake pipe of locating cutting nozzle one side, the cutting nozzle is the tapered tube that the convergent form extends for from top to bottom, the inside of cutting nozzle forms conical light trap, the inner peripheral surface of cutting nozzle is equipped with the guide rib, the guide rib is outstanding in the internal surface setting of cutting nozzle, and be the heliciform extension from top to bottom along cutting nozzle's inner wall, the guide rib is close to the one end on its top in cutting nozzle and is the initiating terminal, the intake pipe corresponds the top of locating the initiating terminal of guide rib, the head forms notched structure for one side of frustum column structure, its plane of cut is the plane, form the through-hole with the light trap intercommunication in the head. This laser cutting head passes through the setting of head structure, can make its incision correspond the anchor clamps part of fibre pad, makes the head can be close to the fibre pad more and carry out cutting work, improves the cutting accuracy.
Description
Technical Field
The utility model relates to a laser cutting technical field, in particular to laser cutting head.
Background
In recent years, laser cutting has been greatly developed in application due to its characteristics of high speed, high quality and the like. Laser cutting is performed by irradiating a workpiece with a focused high-power-density laser beam to melt, vaporize or reach an ignition point at a local part of the workpiece. And the laser cutting head is one of the main parts of the laser cutting device. As shown in fig. 1, the bottom end of the conventional laser cutting head 70 is generally conical, and when the cutting head is used for cutting special materials such as a fiber mat 80, a clamp 90 is generally adopted, so that a belt cutting part is exposed to the outside of the clamp 90, and the bottom end of the cutting head needs to keep a longer distance from a to-be-cut object due to the arrangement of the clamp 90 and the structure of the bottom end of the cutting head, thereby affecting the cutting effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a laser cutting head has solved among the prior art special materials such as fibre pad and has cut and the problem of bringing.
The technical scheme of the utility model is realized like this:
a laser cutting head comprises a light-gathering tube, a cutting nozzle arranged at the lower end of the light-gathering tube, a head arranged at the bottom end of the cutting nozzle and an air inlet pipe connected with one side of the cutting nozzle, the cutting nozzle is a conical tube which extends in a tapered shape from top to bottom, a conical light hole is formed inside the cutting nozzle, the light hole penetrates through the upper end and the lower end of the cutting nozzle, the inner peripheral surface of the cutting nozzle is provided with a guide rib, the guide rib is protruded from the inner surface of the cutting nozzle and extends spirally from top to bottom along the inner wall of the cutting nozzle, one end of the guide rib close to the top end in the cutting nozzle is a starting end, the air inlet pipe is correspondingly arranged above the starting end of the guide rib, the head is in a frustum-shaped structure, one side of the head is provided with a notch structure, the cutting surface of the head is a plane, and a through hole communicated with the light hole is formed in the head.
Preferably, the air intake direction of the air intake pipe corresponds to the direction of the starting end of the guide rib.
Preferably, the cutting nozzle is provided with a guide piece at the inner side of the air inlet pipe for guiding the air flow to enter the cutting nozzle along the direction of the starting end of the guide rib.
Preferably, one end of the guiding sheet is arranged on a shaft body, and the shaft body is rotatably arranged.
Preferably, the extension line of the air inlet direction of the air inlet pipe passes through the circle center of the circle where the cutting nozzle is located.
Preferably, the light-gathering tube is cylindrical, a protruding ring is arranged at the end part of the inner wall of the light-gathering tube, which is close to the cutting nozzle, a light-gathering lens is arranged on the protruding ring, the light-gathering lens is blocked on the inner wall of the light-gathering tube and is supported on the protruding ring, and a sealing ring is arranged on the light-gathering lens in the light-gathering tube.
Preferably, the head is rotatably arranged at the bottom end of the cutting nozzle.
Preferably, the head is rotatably arranged at the bottom end of the cutting nozzle through a bearing.
The utility model has the advantages that:
the utility model discloses a laser cutting head can make its incision correspond the anchor clamps part of fibre pad through the setting of the head structure of cutting nozzle bottom, makes the head can be close to the fibre pad more and waits for the cutting thing to cut work, improves the cutting accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 diagram of a state in which a conventional laser cutting head is used to cut a fiber mat;
FIG. 2 is a schematic structural view of an embodiment of the laser cutting head of the present invention;
FIG. 3 is a cross-sectional view of the nozzle and intake pipe portions of FIG. 2;
FIG. 4 is a bottom view of FIG. 3;
fig. 5 is a schematic cross-sectional structure view of another embodiment of a cutting nozzle portion.
In the figure:
10. a light-gathering tube; 20. 20a, a cutting nozzle; 60. a head portion; 61. cutting; 62. a connecting pipe; 63. a through hole; 30. an air inlet pipe; 11. a projecting ring; 50. a condenser lens; 13. a seal ring; 51. a spare condenser lens; 21. a guide rib; 70. a laser cutting head; 80. a fibrous mat; 90. a clamp; 22. a guide piece; 23. a shaft body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 2, the laser cutting head includes a light-gathering tube 10, a cutting nozzle 20 connected to the lower end of the light-gathering tube 10, a head 60 connected to the bottom end of the cutting nozzle 20, and an air inlet tube 30 connected to one side of the cutting nozzle 20. The air inlet pipe 30 is connected with an air inlet device outside and used for providing air for the laser cutting head.
The light-gathering tube 10 is cylindrical, and a protruding ring 11 is provided at the end of the inner wall of the light-gathering tube adjacent to the cutting nozzle 20. The protruding ring 11 is provided with a condensing lens 50. The condenser lens 50 is disposed on the inner wall of the condenser tube 10 and supported by the protruding ring 11. The condenser tube 10 is provided with a sealing ring 13 on the condenser lens 50. The sealing ring 13 abuts against the outer periphery of the condenser lens 50 and fixes the edge of the condenser lens 50 together with the protruding ring. In this embodiment, the condensing lens 50 is a convex lens with convex upper and lower surfaces. In practical implementation, the condenser lens 50 may also be a convex lens with a convex upper surface and a slightly concave lower surface, and the shape of the lens is suitable for practical application. The condenser lens 50 may be further disposed on the lens mount and assembled to the inner surface of the condenser tube 10 through the lens mount.
The cutting nozzle 20 is a tapered tube extending from top to bottom in a tapered shape, and the top end thereof is connected to the bottom end of the light-gathering tube 10. In specific implementation, the cutting nozzle 20 may also be detachably disposed at the bottom end of the light gathering tube 10, and the two may be detachably connected by a screw thread or a snap fastener. The cutting nozzle 20 is formed with a tapered light hole therein, which penetrates through the upper and lower ends of the cutting nozzle. Referring to fig. 3, the inner circumferential surface of the cutting nozzle 20 is provided with a guide rib 21. The guiding rib 21 protrudes from the inner surface of the cutting nozzle 20 and spirally extends from top to bottom along the inner wall of the cutting nozzle 20, so that the inner wall of the cutting nozzle 20 forms an air flow guiding channel spirally extending from top to bottom. The guide rib 21 starts at an end of the cutting nozzle 20 near the tip thereof.
The head 60 is rotatably mounted to the bottom end of the cutting nozzle 20 by a bearing 22. Referring to fig. 4, the head portion 60 includes a top surface horizontally disposed, a bottom surface opposite to the top surface, a vertical plane connected to one side between the top surface and the bottom surface, and an arc surface connected between the top surface and the bottom surface and connected to two sides of the vertical plane. The top surface has an area greater than the bottom surface. The arc surface is a tapered surface extending in a tapered shape from the top surface to the bottom surface, and the arc surface is a part of the tapered surface. That is, the head portion 60 has a structure in which a cutout 61 is formed on one side of a frustum-shaped structure, and the cut surface thereof is a flat surface. A through hole 63 is formed through the top and bottom surfaces of the head 60, and the inner diameter of the through hole 63 is the same as the diameter of the lowermost end of the light transmitting hole of the cutting nozzle 20. The top surface extends upwardly from the periphery of the through hole to form a connecting tube 62 assembled within the bottom end of the cutting nozzle 20. The air inlet pipe 30 is connected to the outside of the cutting nozzle 20 and is communicated with the light hole of the cutting nozzle 20. The air inlet pipe 30 is correspondingly arranged above the starting end of the guide rib 21, i.e. the air inlet pipe 30 corresponds to the inlet of the air flow guide channel. In the present embodiment, the air intake direction of the air intake pipe 30 corresponds to the direction of the starting end of the guide rib 21, that is, the air intake direction of the air intake pipe 30 is directly opposite to the inlet direction of the airflow guide.
This laser cutting head can make its incision 61 correspond the anchor clamps 90 part of fibre pad 80 through the setting of the head 60 structure of cutting nozzle 20 bottom, makes head 60 can be close to fibre pad 80 more and waits for the cutting thing to carry out cutting work, improves the cutting accuracy. Meanwhile, the inner wall is provided with the protruding guide rib 21, so that an airflow guide channel which extends downwards in a spiral shape is formed on the inner wall of the cutting nozzle 20, when gas enters the cutting nozzle 20 from the gas inlet pipe 30, the gas enters the inside of the cutting nozzle 20 through the guide rib 21 and runs downwards in a spiral shape, the gas pressure is obviously increased, the airflow is more concentrated after flowing out, and the processing effect is improved. In addition, the resistance of gas is reduced, the gas flow is increased, the space of the inner cavity of the cutting nozzle 20 is reduced, the air pressure is indirectly increased, and the laser cutting head saves more energy under the condition of the same gas flow requirement as the traditional laser cutting head.
Fig. 5 is another embodiment of the cutting nozzle part of the laser cutting nozzle of the present invention, and the structure of this embodiment is substantially the same as the previous embodiment, except that: in this embodiment, the air inlet direction of the air inlet pipe 30 is the same as the radius of the connection position of the air inlet pipe 30 corresponding to the circle of the cutting nozzle 20a, that is, the extension line of the air inlet direction passes through the center of the circle of the cutting nozzle 20a, and the cutting nozzle 20a is provided with a guide piece 22 on the inner side of the air inlet pipe 30 for guiding the air flow to enter along the inlet end direction of the air flow guide channel. In this embodiment, one end of the guiding plate 22 is disposed on a shaft 23, and the shaft 23 is rotatably disposed to adjust the direction of the guiding plate 22.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A laser cutting head, its characterized in that: including a light-gathering pipe, locate a cutting nozzle of this light-gathering pipe lower extreme, locate the head of this cutting nozzle bottom and connect the intake pipe of locating this cutting nozzle one side, the cutting nozzle is the taper pipe that is the convergent extension from top to bottom, the inside of cutting nozzle forms a conical light trap, and this light trap runs through the upper and lower both ends of cutting nozzle, the inner peripheral surface of cutting nozzle is equipped with the guide rib, and this guide rib is outstanding in the internal surface setting of cutting nozzle to be the heliciform extension from top to bottom along the inner wall of cutting nozzle, this guide rib is the initiating terminal near the one end on its top in cutting nozzle, and this intake pipe corresponds the top of locating the initiating terminal of guide rib, the head forms a notched structure for one side of frustum column structure, and its cutting surface is a plane, forms the through-hole with the light trap intercommunication in this head.
2. The laser cutting head of claim 1, wherein: the air intake direction of the air intake pipe corresponds to the direction of the starting end of the guide rib.
3. The laser cutting head of claim 1, wherein: the cutting nozzle is provided with a guide sheet on the inner side of the air inlet pipe for guiding airflow to enter the cutting nozzle along the direction of the starting end of the guide rib.
4. A laser cutting head according to claim 3, wherein: one end of the guiding sheet is arranged on a shaft body, and the shaft body can be arranged in a rotating mode.
5. A laser cutting head according to claim 3, wherein: the extension line of the air inlet direction of the air inlet pipe passes through the circle center of the circle where the cutting nozzle is located.
6. A laser cutting head according to any one of claims 1 to 5, wherein: the light-gathering pipe is cylindrical, a protruding ring is arranged at the end part of the inner wall of the light-gathering pipe close to the cutting nozzle, a light-gathering lens is arranged on the protruding ring, the light-gathering lens is arranged on the inner wall of the light-gathering pipe in a blocking mode and supported on the protruding ring, and a sealing ring is arranged on the light-gathering lens in the light-gathering pipe.
7. A laser cutting head according to any one of claims 1 to 5, wherein: the head is rotatably arranged at the bottom end of the cutting nozzle.
8. The laser cutting head of claim 7, wherein: the head is rotatably arranged at the bottom end of the cutting nozzle through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190191.3U CN211759277U (en) | 2020-02-20 | 2020-02-20 | Laser cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190191.3U CN211759277U (en) | 2020-02-20 | 2020-02-20 | Laser cutting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211759277U true CN211759277U (en) | 2020-10-27 |
Family
ID=72908565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020190191.3U Expired - Fee Related CN211759277U (en) | 2020-02-20 | 2020-02-20 | Laser cutting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211759277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116529019A (en) * | 2020-12-18 | 2023-08-01 | 百超激光有限公司 | Laser machining nozzle with ribs inside and laser cutting machine with such nozzle |
-
2020
- 2020-02-20 CN CN202020190191.3U patent/CN211759277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116529019A (en) * | 2020-12-18 | 2023-08-01 | 百超激光有限公司 | Laser machining nozzle with ribs inside and laser cutting machine with such nozzle |
| CN116529019B (en) * | 2020-12-18 | 2024-04-26 | 百超激光有限公司 | Laser machining nozzle with ribs inside and laser cutting machine with such nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 |