CN210237781U - Coaxial powder feeding laser cladding head with replaceable nozzle - Google Patents
Coaxial powder feeding laser cladding head with replaceable nozzle Download PDFInfo
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- CN210237781U CN210237781U CN201920851742.3U CN201920851742U CN210237781U CN 210237781 U CN210237781 U CN 210237781U CN 201920851742 U CN201920851742 U CN 201920851742U CN 210237781 U CN210237781 U CN 210237781U
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- main body
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- metal powder
- cladding head
- channel
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- 239000000843 powder Substances 0.000 title claims abstract description 112
- 238000004372 laser cladding Methods 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 abstract description 13
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Laser Beam Processing (AREA)
Abstract
本实用新型涉及一种具有可置换喷嘴的同轴送粉激光熔覆头，用于解决同轴送粉激光熔覆头送粉口易出现堵粉现象和粉末出粉口因金属粉摩擦使内径变大，导致熔覆头使用周期较短、更换成本高的问题。该具有可置换喷嘴的同轴送粉激光熔覆头，包括主体件和设置在主体件上的喷嘴；主体件和喷嘴均为锥台状结构，主体件小端与喷嘴大端结构相适配，主体件和喷嘴为可拆卸连接；主体件和喷嘴中心设有激光通道；激光通道从主体件的大端贯穿至喷嘴的小端；主体件的侧壁周向均布至少两个金属粉输入通道，所述金属粉输入通道从主体件的大端贯穿至小端；喷嘴的侧壁周向均布与主体件金属粉输入通道一一对应且中心轴共轴的金属粉输出通道。
The utility model relates to a coaxial powder feeding laser cladding head with a replaceable nozzle, which is used to solve the problem that the powder feeding port of the coaxial powder feeding laser cladding head is prone to powder blocking and the inner diameter of the powder powder outlet due to metal powder friction. becomes larger, resulting in a short service life of the cladding head and a high replacement cost. The coaxial powder feeding laser cladding head with replaceable nozzle includes a main body and a nozzle arranged on the main body; the main body and the nozzle are both frustum-shaped structures, and the small end of the main body is matched with the large end of the nozzle. , the main body part and the nozzle are detachably connected; the center of the main body part and the nozzle is provided with a laser channel; the laser channel runs from the large end of the main body part to the small end of the nozzle; the side wall of the main body part is circumferentially distributed at least two metal powder input channels, The metal powder input channel penetrates from the large end to the small end of the main body; the side wall of the nozzle is evenly distributed with metal powder output channels corresponding to the metal powder input channel of the main body one-to-one and the central axis is coaxial.
Description
Technical Field
The invention belongs to the technical field of laser processing equipment, and relates to a coaxial powder feeding laser cladding head with a replaceable nozzle.
Background
Laser cladding is a laser surface modification technique which uses laser to irradiate cladding material (metal powder) to melt a thin layer on the surface of a substrate at the same time, and forms a surface coating which is metallurgically bonded with the substrate after rapid solidification. Laser cladding can be divided into a preset powder feeding mode and a coaxial powder feeding mode according to the powder feeding mode, wherein the preset powder feeding mode is to lay metal powder on the surface of a substrate in advance and then use laser irradiation to melt the metal powder. The coaxial powder feeding mode is also called as a synchronous powder feeding mode, laser and metal powder need to be synchronously fed to the surface of the substrate, and compared with a preset powder feeding mode, the coaxial powder feeding mode has the advantages of high powder utilization rate and smooth and uniform cladding layer.
In industrial production, the coaxial powder feeding laser cladding head is widely applied. The coaxial powder-feeding laser cladding head generally adopts a multi-channel powder feeding mode, the center of the cladding head is a laser beam channel, and metal powder channels are circumferentially distributed around the laser beam and are fed out along a set direction under the action of high-pressure gas. The above-mentioned techniques have mainly the following problems in industrial use:
(1) the powder feeding port of the coaxial powder feeding laser cladding head is easily affected by metal powder sputtering, so that the powder feeding port is easy to hang slag and has a powder blocking phenomenon, and the cladding head needs to be replaced when the powder feeding port is serious;
(2) the powder outlet of the cladding head is washed by the high-speed metal powder for a long time, the powder caliber of the cladding head is gradually increased, and the thickness and the performance of a cladding layer are affected.
The laser cladding head needs to be replaced periodically due to the problems, the processing cost of the cladding head is high, the production efficiency is reduced, and the maintenance cost of equipment is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems that the powder feeding port of the coaxial powder feeding laser cladding head is easy to have the powder blocking phenomenon and the powder discharging port causes the inner diameter to become large due to the scouring of the metal powder, the service cycle of the cladding head is short, and the cost of replacement is high, and providing the coaxial powder feeding laser cladding head with a replaceable nozzle.
The technical solution of the utility model is that:
a coaxial powder feeding laser cladding head with a replaceable nozzle comprises a main body part and is characterized in that: the nozzle is arranged on the main body piece;
the main body piece and the nozzle are both in frustum-shaped structures, the small end of the main body piece is matched with the large end structure of the nozzle, and the main body piece and the nozzle are detachably connected;
the main body piece and the center of the nozzle are provided with a laser channel; the laser channel penetrates from the large end of the main body part to the small end of the nozzle;
2-4 metal powder input channels are uniformly distributed on the side wall of the main body piece in the circumferential direction, and penetrate from the large end to the small end of the main body piece;
metal powder output channels which are in one-to-one correspondence with the metal powder input channels of the main body part and have coaxial central shafts are uniformly distributed on the side wall of the nozzle in the circumferential direction, and the metal powder output channels penetrate from the large end to the small end of the nozzle;
the inner diameter of the metal powder input channel at the small end face of the main body piece is larger than that of the metal powder output channel.
Further, the main body piece and the nozzle are detachably connected through screws.
Furthermore, the nozzle is circumferentially and evenly provided with 2-5 screw fixing holes, and the main body part is provided with a threaded hole matched with the screw fixing holes.
Furthermore, the inner diameter of a laser channel on the main body part is 2-10mm, the inner diameter of a laser channel on the nozzle is 1-5mm, the inner diameter of a metal powder input channel is 1-5mm, and the inner diameter of a metal powder output channel can be 0.6-2 mm.
Further, the laser channel may be configured as a frustum-shaped structure.
Further, the laser channel may also be provided as a cylindrical structure.
Further, the metal powder input channel can be arranged into a frustum shape or a frustum-like structure.
Further, the metal powder input channel can also be arranged into a cylindrical structure.
Further, the metal powder output channel is of a cylindrical structure.
Further, still including setting up the water-cooling passageway of U-shaped structure on the main part, water-cooling passageway one end is the water inlet, and the other end is the delivery port, and cooling water can circulate in the water-cooling passageway.
The utility model has the advantages that:
(1) the main body part and the nozzle of the coaxial powder feeding laser cladding head with the replaceable nozzle are detachably connected, if the condition that the powder feeding port is seriously hung with slag or the powder feeding channel is internally blocked is generated, the slag hanging of the powder feeding port and the metal powder in the powder feeding channel can be removed by replacing the nozzle, and the nozzle can normally work after maintenance in-situ installation; the nozzle is convenient to maintain and operate, and the time for maintaining the nozzle can be shortened by disassembling the main body part and the nozzle.
(2) The utility model discloses coaxial powder feeding laser cladding head medium nozzle with displaceable nozzle is for dismantling the connection, when powder outlet is by the metal powder friction lead to the internal diameter grow, only needs to change the nozzle and just can solve the problem that the internal diameter becomes big in the powder outlet, the change easy operation of nozzle, and the nozzle cost is lower.
(3) The utility model discloses coaxial powder feeding laser cladding head with displaceable nozzle in the nozzle need not to change whole cladding head for can dismantling the connection when the problem appears, only need dismantle the nozzle and maintain or change, not only easy operation, the time is short, and is with low costs moreover.
Drawings
FIG. 1 is a front view of the coaxial powder feeding laser cladding head with replaceable nozzle of the present invention;
FIG. 2 is a view B-B of FIG. 1;
fig. 3 is a view a-a of fig. 2.
The reference numbers are as follows:
1-main body part, 2-nozzle, 21-laser channel, 22-metal powder input channel, 23-metal powder output channel, 24-screw fixing hole and 25-threaded hole.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
as shown in fig. 1 and 2, the coaxial powder feeding laser cladding head with replaceable nozzle comprises a main body part 1 and a nozzle 2 arranged on the main body part 1;
As shown in fig. 2 and 3, the main body piece 1 and the nozzle 2 are provided with a laser channel 21 in the center; the laser channel 21 penetrates from the large end of the main body piece 1 to the small end of the nozzle 2; the laser channel 21 is in a frustum-shaped or cylindrical structure, and the diameter of the laser channel 21 on the end face of the large end of the main body part 1 is larger than or equal to that of the end face of the small end of the nozzle 2. The inner diameter of the laser channel on the main body part 1 is 2-10mm, and the inner diameter of the laser channel on the nozzle 2 is 1-5 mm.
Four metal powder input channels 22 are uniformly distributed on the side wall of the main body piece 1 in the circumferential direction, and the metal powder input channels 22 penetrate from the large end to the small end of the main body piece 1; the metal powder input channel 22 is of a frustum-like cylindrical structure, and the diameter of the metal powder input channel 22 on the end face of the large end of the main body piece 1 is larger than or equal to that of the end face of the small end of the main body piece 1.
Metal powder output channels 23 which correspond to the metal powder input channels 22 of the main body part 1 one by one and have coaxial central shafts are uniformly distributed on the side wall of the nozzle 2 in the circumferential direction, and the metal powder output channels 23 penetrate from the large end to the small end of the nozzle 2; the metal powder discharge passage 23 has a cylindrical structure.
The inner diameter of the metal powder input channel 22 is 1-5mm, and the inner diameter of the metal powder output channel 23 is 0.6-2 mm.
The inner diameter of the metal powder input channel 22 at the small end face of the main body piece 1 is larger than that of the metal powder output channel 23. The metal powder enters from the metal powder input channel 22 under the pneumatic action and forms a metal powder fluid with higher continuity after being gathered by the metal powder output channel 23 with smaller inner diameter, so that the quality of the metal powder is improved, and the cladding efficiency and the quality of a cladding layer are improved.
Along main part 1 with can also set up the water-cooling passageway of U-shaped structure, water-cooling passageway one end is the water inlet, and the other end is the delivery port, and cooling water gets into from the water inlet, flows out from the delivery port after the circulation in the water-cooling passageway to the cooling laser melts and covers the head.
The above is only the embodiment of the present invention, and is not the limitation of the protection scope of the present invention, all the equivalent structure changes made in the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A coaxial powder feeding laser cladding head with a replaceable nozzle comprises a main body part (1), and is characterized in that: the device also comprises a nozzle (2) arranged on the main body piece (1);
the main body piece (1) and the nozzle (2) are both in frustum-shaped structures, the small end of the main body piece (1) is matched with the large end structure of the nozzle (2), and the main body piece (1) and the nozzle (2) are detachably connected;
the centers of the main body piece (1) and the nozzle (2) are provided with a laser channel (21); the laser channel (21) penetrates from the large end of the main body piece (1) to the small end of the nozzle (2);
2-4 metal powder input channels (22) are uniformly distributed on the side wall of the main body piece (1) in the circumferential direction, and the metal powder input channels (22) penetrate from the large end to the small end of the main body piece (1);
metal powder output channels (23) which correspond to the metal powder input channels (22) of the main body piece (1) one by one and have coaxial central shafts are uniformly distributed on the side wall of the nozzle (2) in the circumferential direction, and the metal powder output channels (23) penetrate from the large end to the small end of the nozzle (2);
the inner diameter of the metal powder input channel (22) on the small end face of the main body piece (1) is larger than that of the metal powder output channel (23).
2. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 1, characterized in that: the main body piece (1) and the nozzle (2) are detachably connected through screws.
3. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 2, characterized in that: nozzle (2) circumference equipartition has 2-5 screw fixation hole (24), main part (1) be provided with screw hole (25) of screw fixation hole (24) looks adaptation.
4. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 2, characterized in that: the inner diameter of a laser channel on the main body part (1) is 2-10mm, the inner diameter of a laser channel on the nozzle (2) is 1-5mm, the inner diameter of the metal powder input channel (22) is 1-5mm, and the inner diameter of the metal powder output channel (23) can be 0.6-2 mm.
5. The coaxial powder feeding laser cladding head with the replaceable nozzle according to any one of claims 1 to 4, characterized in that: the laser channel (21) is of a frustum-shaped structure.
6. The coaxial powder feeding laser cladding head with the replaceable nozzle according to any one of claims 1 to 4, characterized in that: the laser channel (21) is of a cylindrical structure.
7. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 5, characterized in that: the metal powder input channel (22) is of a frustum-shaped or frustum-like structure.
8. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 6, characterized in that: the metal powder input channel (22) is of a cylindrical structure.
9. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 7, characterized in that: the metal powder output channel (23) is of a cylindrical structure.
10. The coaxial powder feeding laser cladding head with the replaceable nozzle according to claim 9, characterized in that: still including setting up the water-cooling passageway of U-shaped structure on main part spare (1), water-cooling passageway one end is the water inlet, and the other end is the delivery port, and the cooling water can circulate in the water-cooling passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920851742.3U CN210237781U (en) | 2019-06-06 | 2019-06-06 | Coaxial powder feeding laser cladding head with replaceable nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920851742.3U CN210237781U (en) | 2019-06-06 | 2019-06-06 | Coaxial powder feeding laser cladding head with replaceable nozzle |
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| CN210237781U true CN210237781U (en) | 2020-04-03 |
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| CN201920851742.3U Active CN210237781U (en) | 2019-06-06 | 2019-06-06 | Coaxial powder feeding laser cladding head with replaceable nozzle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690929A (en) * | 2020-07-01 | 2020-09-22 | 齐鲁工业大学 | A laser cladding head |
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2019
- 2019-06-06 CN CN201920851742.3U patent/CN210237781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690929A (en) * | 2020-07-01 | 2020-09-22 | 齐鲁工业大学 | A laser cladding head |
| CN111690929B (en) * | 2020-07-01 | 2022-03-29 | 齐鲁工业大学 | Laser cladding head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211018 Address after: 710100 No. 3000, Biyuan Second Road, Chang'an District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Zhongke Zhongmei Laser Technology Co.,Ltd. Address before: 710119 No.26, Fazhan Avenue, Chang'an District, Xi'an City, Shaanxi Province Patentee before: XI'AN ZHONGKE ZHONGMEI LASER TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20250115 Address after: Room 668-670, Building D-1, Service Outsourcing Industrial Park, Zone D, No. 8 Xinfeng Road, High tech Zone, Daqing City, Heilongjiang Province, 163000 Patentee after: Daqing Jushengde Laser Co.,Ltd. Country or region after: China Address before: 710100 No. 3000, Biyuan Second Road, Chang'an District, Xi'an City, Shaanxi Province Patentee before: Shaanxi Zhongke Zhongmei Laser Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |