CN213624385U

CN213624385U - High-efficient laser powder feeding head

Info

Publication number: CN213624385U
Application number: CN202022765891.3U
Authority: CN
Inventors: 邹斌华
Original assignee: Ningbo Leisu Laser Industry Co ltd
Current assignee: Ningbo Leisu Laser Industry Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-06
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a high-efficient laser powder feeding head, including the nozzle body, this internal axial runs through the trompil and forms out the light center pore, the cover has the protective sheath on the toper tail end outer wall of body, toper ring track between protective sheath internal perisporium and the body tail end periphery wall forms and send powder compression chamber to say, the powder compression chamber that send that light-emitting centre bore says outlet department says and says for conical sharp end, match on the protective sheath and open into powder mouth and with send powder compression chamber to say the intercommunication, this send the powder head to simplify the structure to form the toper between protective sheath internal perisporium and the body tail end toper outer wall and send powder compression chamber to say, send the powder in-process pressurization, thereby concentrate on carrying to the laser facula, improve the powder utilization ratio.

Description

High-efficient laser powder feeding head

Technical Field

The utility model relates to the field of welding technique, concretely relates to high-efficient laser send whitewashed head.

Background

The laser cladding or laser cladding is a new surface modification technology, and a cladding material is added on the surface of a base material, and a laser beam with high energy density is utilized to fuse the cladding material and a thin layer on the surface of the base material together, so that a metallurgically bonded cladding layer is formed on the surface of a base layer, the product performance is greatly improved, the application fields of laser cladding equipment are more, generally, a plurality of powder feeders are arranged on the outer wall of a laser nozzle, and a through type pore canal is used for feeding powder to a laser spot, and the defects that the installation structure is more complex, the powder utilization rate is low, the service life is short due to the lack of a cooling mechanism, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical defect, the utility model provides a following technical scheme:

the utility model provides a high-efficient laser powder feeding head, includes the nozzle body, and the body is internal to run through the trompil and is formed light-emitting central pore, and the cover has the protective sheath on the toper tail end outer wall of body, and the toper circuit between protective sheath internal perisporium and the body tail end periphery wall forms and send powder compression chamber to say, and the powder that send that light-emitting central pore says that the export department is sent powder compression chamber to be conical sharp end, and the powder mouth is advanced and is said intercommunication with sending powder compression chamber to the cooperation on the protective sheath.

This send whitewashed head to simplify the structure to form toper between protective sheath internal perisporium and the body tail end toper outer wall and send whitewashed compression chamber way, pressurize at the powder feeding in-process, thereby concentrate on carrying to the laser facula, improve the powder utilization ratio.

Furthermore, a cooling water channel is arranged in the cavity wall of the middle area of the body, and a water inlet and a water outlet are arranged on the corresponding outer wall, so that heat dissipation is improved, and the working period is prolonged.

Further, set up the air inlet of protective gas on the outer wall of body, with light-emitting centre bore way intercommunication, the work piece surface improves the fusion welding quality with protective gas, like argon protection.

Furthermore, the powder inlet is provided with a powder joint to be butted with an external powder feeding device, so that the use is convenient.

Furthermore, the protective sleeve is conical, so that the weight is reduced, and the use is convenient.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the nozzle has the advantages of simplified structure, high powder utilization rate, long service life and the like.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a sectional view of the present invention;

wherein the reference numerals are:

1. a body; 2. cooling the collar; 3. a protective sleeve; 4. powder feeding and cavity compressing; 5. powder joint; 6. an air inlet; 7. a light-emitting central pore passage; 21. a water outlet joint; 22. a water inlet joint; 23. and a cooling water channel.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

Referring to fig. 1, the high efficiency laser powder feeding head includes a nozzle body 1, in this embodiment, a conventional cylinder is used, the cylinder penetrates through a hole from a head end to a tail end along an axial center line to form a light-emitting central duct 7, the tail end of the body is conical, a protective sleeve 3 is also used to be a conical body and is sleeved on the tail end of the body, the top end of the protective sleeve is welded, screwed or embedded and fixed with the body, a conical ring is formed between the inner peripheral wall of the protective sleeve and the outer peripheral wall of the tail end of the body to form a powder-feeding compression duct 4, the powder-feeding compression duct at the light-emitting central duct outlet is a conical sharp end, namely an inverted cone, a powder inlet is formed on the protective sleeve and is communicated with the powder-feeding compression duct, powder enters from the powder inlet, is pressurized by the conical ring, then comes out from the duct opening at the peripheral side of the light-emitting central duct and converges to a laser, to be butted with peripheral powder feeding equipment.

In this embodiment, a cooling water channel 23 is formed in the cavity wall of the middle region of the body, and spirally surrounds the cavity, a water inlet and a water outlet are formed in the outer wall, and a water inlet joint 22 and a water outlet joint 21 are correspondingly installed to facilitate butt joint of the external water supply pipeline, as shown in fig. 1, the cooling water channel can be directly formed during body forming, or a split structure is adopted, so that the cooling lantern ring 2 is sleeved in the middle of the body, and the cooling water channel is formed in the cooling lantern ring.

In addition, the upper part of the body is used as a joint to facilitate butt joint, the outer wall is provided with a shielding gas inlet 6 which is communicated with the light-emitting central channel, and the shielding gas channel and the light-emitting central channel are integrated to improve fusion welding quality if argon is input for protection.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient laser powder feeding head, includes the nozzle body, and the trompil is run through to the axial in the body and light-emitting central pore, its characterized in that: the outer wall of the conical tail end of the body is sleeved with a protective sleeve, a conical ring channel between the inner peripheral wall of the protective sleeve and the outer peripheral wall of the tail end of the body forms a powder feeding compression cavity channel, the powder feeding compression cavity channel at the outlet of the light outlet central hole channel is a conical sharp end, and a powder inlet is formed in the protective sleeve in a matched mode and communicated with the powder feeding compression cavity channel.

2. The powder feeding head as set forth in claim 1, wherein: the cavity wall of the middle area of the body is internally provided with a cooling water channel, and a water inlet and a water outlet are arranged on the corresponding outer wall.

3. The powder feeding head as set forth in claim 1, wherein: the outer wall of the body is provided with a gas inlet of protective gas, and the gas inlet is communicated with the light-emitting central channel.

4. The powder feeding head as set forth in claim 1, wherein: the powder inlet is provided with a powder joint to be butted with an external powder feeding device.

5. The powder feeding head as set forth in claim 1, wherein: the protective sleeve is conical.