CN218910518U

CN218910518U - Laser cladding head and laser processing equipment

Info

Publication number: CN218910518U
Application number: CN202320168884.6U
Authority: CN
Inventors: 蒋修青; 朱小杰; 蒋泽锋
Original assignee: Gangchun Laser Technology Jiangsu Co ltd
Current assignee: Gangchun Laser Technology Jiangsu Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-04-25
Anticipated expiration: 2033-02-09

Abstract

The utility model relates to the technical field of laser processing and manufacturing, and discloses a laser cladding head and laser processing equipment. The laser cladding head comprises a protective lens, a blowing head and a supporting piece. The blowing head is arranged below the protective lens, the blowing head can be communicated with an external compressed air supply device, the blowing head comprises a blowing port, the shape of the blowing port is in a transverse slit shape, and the blowing port is arranged towards the laser beam of the laser cladding head. The support piece is arranged below the protective lens, the blowing head is arranged on the support piece, and the position of the support piece on the laser cladding head is adjustable. The air blowing port of the air blowing head is in a transverse slit shape, and can blow out transverse air flow, so that dust, slag and the like splashed from the laser beam channel are transversely blown away, and the dust, slag and the like are prevented from splashing to the protective lens to damage the protective lens. And the position of the support piece on the laser cladding head is adjustable, so that the distance between the blowing head and the laser beam can be adjusted to fully blow away dust, slag and the like splashed from the laser beam channel.

Description

Laser cladding head and laser processing equipment

Technical Field

The utility model relates to the technical field of laser processing and manufacturing, in particular to a laser cladding head and laser processing equipment.

Background

The laser cladding technology is a technological method for placing a selected coating material on the surface of a coated substrate, enabling the coating material and a thin layer of the surface of the substrate to be melted simultaneously through laser irradiation, and forming a surface coating which is extremely low in dilution and is metallurgically bonded with the substrate material after rapid solidification, so that the wear resistance, corrosion resistance, heat resistance, oxidation resistance, electrical characteristics and the like of the surface of the substrate material are remarkably improved.

The laser cladding head is an important device for laser cladding, and a protective lens is generally arranged in the laser cladding head to prevent dust, slag and the like from splashing to the focusing lens, so that the focusing lens is protected. In the prior art, in order to avoid frequent replacement of the protective lenses, the protective lens area is usually set to be micro-positive pressure, so that dust, slag and the like are prevented from splashing to the protective lenses. However, the protection effect of the micro-positive pressure is limited, dust, slag and the like still can splash to the protective lens, so that the protective lens is damaged.

Therefore, there is a need for a laser cladding head and a laser processing apparatus to solve the above technical problems.

Disclosure of Invention

An object of the present utility model is to provide a laser cladding head capable of laterally blowing away dust, slag, etc. splashed from a laser beam path, thereby preventing the dust, slag, etc. from splashing to a protective lens to damage the protective lens.

Another object of the present utility model is to provide a laser processing apparatus, in which the laser cladding head is provided, so that dust, slag, etc. can be prevented from splashing on the protective lens to damage the protective lens, and the service life of the laser processing apparatus can be prolonged.

To achieve the purpose, the utility model adopts the following technical scheme:

laser cladding head, including the protection lens, laser cladding head still includes:

the blowing head is arranged below the protective lens and can be communicated with an external compressed air supply device, the blowing head comprises a blowing port, the shape of the blowing port is in a transverse slit shape, and the blowing port is arranged towards a laser beam of the laser cladding head;

the support piece is arranged below the protective lens, the blowing head is arranged on the support piece, and the position of the support piece on the laser cladding head is adjustable.

As a preferred scheme, the laser cladding head further comprises a support frame, the support frame is arranged below the protective lens, the support piece is arranged in the support frame, the position of the support piece in the support frame is adjustable, a first through hole and a first fastening piece are arranged on the support frame, a second through hole is arranged on the support piece, and the first fastening piece sequentially penetrates through the first through hole and the second through hole to connect the support frame with the support piece.

As a preferable mode, the second through hole is a long strip through hole arranged along the horizontal direction.

As a preferable scheme, the laser cladding head comprises a laser nozzle assembly, the laser nozzle assembly is arranged below the supporting frame, a third through hole and a second fastening piece are arranged on the supporting frame, a fourth through hole is arranged on the laser nozzle assembly, and the second fastening piece sequentially penetrates through the fourth through hole and the third through hole to connect the laser nozzle assembly and the supporting frame.

As a preferred aspect, the second fastener includes a second nut and a second bolt, and the diameter of the fourth through hole is larger than the diameter of the second bolt shank and smaller than the diameter of the second bolt head.

As a preferable scheme, the laser nozzle assembly comprises a telescopic assembly and a nozzle, one end of the telescopic assembly is connected with the supporting frame, the other end of the telescopic assembly is connected with the nozzle, and the telescopic assembly can be telescopic along the vertical direction.

As a preferred scheme, the flexible subassembly includes connecting cylinder and flexible section of thick bamboo, the connecting cylinder cover is located flexible section of thick bamboo is outside, flexible section of thick bamboo can be in slide along vertical direction in the connecting cylinder, follow the radial direction of connecting cylinder wears to be equipped with a plurality of butt pieces, a plurality of the butt piece can the butt flexible section of thick bamboo is in order to fix flexible section of thick bamboo.

As a preferable scheme, a plurality of clamping pieces are arranged in the connecting cylinder, the plurality of clamping pieces can jointly clamp the telescopic cylinder, and the abutting piece can abut against the clamping pieces so as to fix the telescopic cylinder.

As a preferable mode, the laser cladding head further comprises a second air inlet pipe, one end of the second air inlet pipe can be communicated with an external inert gas supply device, and the other end of the second air inlet pipe is communicated with the laser nozzle assembly.

A laser machining apparatus comprising a laser cladding head as claimed in any one of the preceding claims.

The beneficial effects of the utility model are as follows:

the utility model provides a laser cladding head which comprises a protective lens, a blowing head and a supporting piece. The blowing head is arranged below the protective lens and can be communicated with an external compressed air supply device. The air blowing port of the air blowing head is in a transverse slit shape, so that transverse air flow can be blown out. And the air blowing port of the air blowing head is arranged towards the laser beam of the laser cladding head, so that dust, slag and the like splashed from the laser beam channel can be transversely blown away by transverse air flow, and the dust, slag and the like are prevented from splashing to the protective lens to damage the protective lens. In addition, the blowing head is arranged on the supporting piece, and the position of the supporting piece on the laser cladding head is adjustable, so that the distance between the blowing head and the laser beam can be adjusted, and the coverage range of the transverse airflow can be adjusted, so that dust, slag and the like splashed from the laser beam channel can be fully blown away.

The utility model also provides laser processing equipment, which comprises the laser cladding head, and dust, slag and the like splashed from a laser beam channel can be transversely blown away by arranging the laser cladding head, so that the dust, slag and the like are prevented from splashing to a protective lens to damage the protective lens, the protective lens is prevented from being replaced frequently, and the service life of the laser processing equipment is prolonged.

Drawings

FIG. 1 is a schematic view of a laser cladding head according to an embodiment of the present utility model at a first angle;

FIG. 2 is a schematic view of a structure of a laser cladding head at a second angle according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a laser cladding head at a third angle according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a blowhead and a first air intake pipe provided in an embodiment of the present utility model;

FIG. 5 is a schematic view of a structure of a support member and a support frame with a portion of a first fastener removed according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a telescopic assembly according to an embodiment of the present utility model;

fig. 7 is a schematic cross-sectional view of a laser cladding head according to an embodiment of the present utility model.

In the figure:

1. a blow head; 11. an air blowing port;

2. a support; 21. a second through hole;

3. a support frame; 31. a first through hole; 32. a first fastener; 321. a first nut; 322. a first bolt; 33. a third through hole; 34. a second fastener; 341. a second nut; 342. a second bolt;

4. a laser nozzle assembly; 41. a telescoping assembly; 411. a connecting cylinder; 4111. a fourth through hole; 4112. an abutment; 4113. a clamping piece; 412. a telescopic cylinder; 42. a nozzle; 43. a passage;

5. a first air inlet pipe;

6. a second air inlet pipe;

7. an air intake; 71. an annular cavity;

8. a laser beam;

9. protecting the lens drawer.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides laser processing equipment, which comprises a laser cladding head and can be used in the technical field of laser processing and manufacturing.

As shown in fig. 1-4, the laser cladding head comprises a protective lens (not shown in the figures), a blowing head 1 and a support 2. The blow head 1 is arranged below a protective lens (not shown in the figures), the blow head 1 being able to communicate with an external compressed air supply (not shown in the figures). The blowing head 1 comprises a blowing opening 11, the shape of the blowing opening 11 being arranged in a transverse slit-like manner, the blowing opening 11 being arranged towards the laser beam 8 of the laser cladding head. The support 2 is arranged below a protective lens (not shown in the figure), the blowing head 1 is arranged on the support 2, and the position of the support 2 on the laser cladding head is adjustable.

The blow head 1 can communicate with an external compressed air supply (not shown in the figures) so that the blow head 1 can blow out a rapid air flow. The blow head 1 comprises a blow port 11, the shape of the blow port 11 being arranged in a transverse slit shape, so that the rapid air flow blown out by the blow head 1 is a transverse air flow. The air blowing port 11 is provided toward the laser beam 8 of the laser cladding head so that the lateral air flow can blow away dust, slag, etc. splashed from the laser beam passage laterally, thereby avoiding damage to the protective lens due to the splashing of dust, slag, etc. onto the protective lens.

The blowing head 1 is arranged on the supporting piece 2, the position of the supporting piece 2 on the laser cladding head is adjustable, the position of the blowing head 1 can be adjusted by adjusting the position of the supporting piece 2 on the laser cladding head, and then the distance between the blowing head 1 and the laser beam 8 is adjusted. It will be appreciated that the further from the laser beam 8 the blow head 1 is, the greater the coverage of the lateral air flow blown by the blow head 1. Therefore, by adjusting the distance between the blowhead 1 and the laser beam 8, the lateral air flow can be made to sufficiently blow away dust, slag, etc. splashed from the laser beam passage.

Specifically, as shown in fig. 1, a protective lens (not shown) is provided in the protective lens drawer 9, and the blowing head 1 is provided below the protective lens drawer 9, so that the protective lens can be conveniently installed or replaced by pulling the protective lens drawer 9 open.

Preferably, as shown in fig. 1 and 4, the laser cladding head further comprises a first air inlet pipe 5, one end of the first air inlet pipe 5 is capable of communicating with an external compressed air supply device (not shown in the figures), and the other end is in communication with the blowing head 1, so that the blowing head 1 is capable of communicating with the external compressed air supply device (not shown in the figures).

Preferably, as shown in fig. 1, 2 and 5, the laser cladding head further comprises a support frame 3, and the support frame 3 is disposed below the protective lens (not shown in the drawings). The support 2 is arranged in the support frame 3, and the position of the support 2 in the support frame 3 is adjustable. The position of the blowing head 1 can be adjusted by adjusting the position of the supporting piece 2 in the supporting frame 3, so that the distance between the blowing head 1 and the laser beam 8 is adjusted, and the coverage range of the transverse airflow is adjusted, so that the transverse airflow sufficiently blows away dust, slag and the like splashed from a laser beam channel.

Specifically, as shown in fig. 5, the support 3 is provided with a first through hole 31 and a first fastener 32, the support 2 is provided with a second through hole 21, and the first fastener 32 sequentially penetrates the first through hole 31 and the second through hole 21 to connect the support 3 and the support 2, thereby installing the support 2 in the support 3.

Preferably, as shown in fig. 5, the first fastener 32 includes a first nut 321 and a first bolt 322, and the first bolt 322 is threaded with the first nut 321 after sequentially passing through the first through hole 31 and the second through hole 21 to connect the support frame 3 and the support 2, thereby installing the support 2 in the support frame 3. The engagement of the first nut 321 and the first bolt 322 can facilitate the installation and removal.

Preferably, as shown in fig. 1 and 5, the second through hole 21 is an elongated through hole disposed in the horizontal direction. When the position of the support member 2 is to be adjusted, the first fastener 32 is released and the support member 2 is moved in the longitudinal direction of the second through hole 21. After the position of the support 2 is determined, the first fastener 32 is fastened again to complete the position adjustment of the support 2. The present embodiment does not require processing of the plurality of second through holes 21, and reduces the processing steps, as compared with the case where the plurality of second through holes 21 are provided in the horizontal direction to adjust the position of the support member 2. In addition, when the position of the supporting member 2 is adjusted, the first fastening member 32 is not required to be separated from one second through hole 21 and then inserted into the other second through holes 21, and only the first fastening member 32 is required to be slightly loosened and the supporting member 2 is required to be moved along the length direction of the second through hole 21, so that the operation steps are simpler, and the working efficiency is improved.

Preferably, as shown in fig. 1 and 5, a second through hole 21 is provided on each of opposite sides of the support 2, and correspondingly, a first through hole 31 is provided on each of opposite sides of the support 3, and two first fasteners 32 are provided, so that the support 2 is stably mounted on the support 3.

Preferably, as shown in fig. 2, 3 and 5, the laser cladding head comprises a laser nozzle assembly 4, and the laser nozzle assembly 4 is arranged below the supporting frame 3. The support frame 3 is provided with a third through hole 33 and a second fastening piece 34, the laser nozzle assembly 4 is provided with a fourth through hole 4111, and the second fastening piece 34 sequentially penetrates through the fourth through hole 4111 and the third through hole 33 to connect the laser nozzle assembly 4 and the support frame 3, so that the laser nozzle assembly 4 is installed below the support frame 3.

Preferably, as shown in fig. 1, 2, 3 and 5, the second fastener 34 includes a second nut 341 and a second bolt 342, and the diameter of the fourth through hole 4111 is larger than the diameter of the shaft portion of the second bolt 342 and smaller than the diameter of the head portion of the second bolt 342. Through setting up the diameter of fourth through hole 4111 and being greater than the diameter of second bolt 342 shaft portion for laser nozzle assembly 4 can remove in the certain within range of second bolt 342 shaft portion week side, thereby make laser nozzle assembly 4 can remove in the certain within range of horizontal direction, and then adjust the axiality of laser beam 8 and laser nozzle assembly 4, do not need to set up axiality adjustment mechanism additionally, make laser cladding head overall structure simple compact. And the diameter of the fourth through hole 4111 is smaller than the diameter of the head of the second bolt 342, so that the second fastener 34 can fix the laser nozzle assembly 4, and the laser nozzle assembly 4 is prevented from falling off.

Preferably, as shown in fig. 1 and 2, the laser nozzle assembly 4 includes a telescopic assembly 41 and a nozzle 42, one end of the telescopic assembly 41 is connected with the support frame 3, the other end is connected with the nozzle 42, and the telescopic assembly 41 can be telescopic along a vertical direction, so as to drive the nozzle 42 to move along the vertical direction, and further adjust the position of the nozzle 42.

Further, as shown in fig. 3 and 6, the telescopic assembly 41 includes a connecting barrel 411 and a telescopic barrel 412, the connecting barrel 411 is sleeved outside the telescopic barrel 412, and the telescopic barrel 412 can slide in the vertical direction in the sleeve of the connecting barrel 411. A plurality of abutting pieces 4112 are penetrated along the radial direction of the connecting barrel 411, and the abutting pieces 4112 can abut against the telescopic barrel 412 to fix the telescopic barrel 412. When the telescopic tube 412 is required to be moved, the abutting member 4112 is released, so that the telescopic tube 412 can slide in the sleeve of the connecting tube 411. After the telescopic tube 412 is moved, the abutting member 4112 is abutted against the telescopic tube 412, and the telescopic tube 412 is fixed. And the whole structure of the telescopic component 41 is simple and compact, so that the whole structure of the laser cladding head is simple and compact, and the space is saved. In the present embodiment, four abutting members 4112 are uniformly disposed on the circumferential side of the connecting barrel 411, so that the telescopic barrel 412 is more stable. In other embodiments, two, three, five or other number of the contact members 4112 may be inserted into the circumferential side of the connecting barrel 411, and may be flexibly arranged as needed, which is not limited herein.

Preferably, as shown in fig. 3 and 6, a plurality of clips 4113 are disposed in the connecting barrel 411, the clips 4113 can jointly clamp the telescopic barrel 412, and the abutting piece 4112 can abut against the clips 4113 to fix the telescopic barrel 412. The clamping pieces 4113 are uniformly surrounded on the circumference of the telescopic cylinder 412, and the abutting pieces 4112 are in one-to-one correspondence with the clamping pieces 4113. When it is desired to move the telescopic cylinder 412, the abutting member 4112 is moved away from the clamping piece 4113, so that the telescopic cylinder 412 slides in the connecting cylinder 411. After the telescopic tube 412 is moved, the abutting piece 4112 abuts against the clamping piece 4113, so that the clamping piece 4113 clamps the telescopic tube 412, and then the telescopic tube 412 is fixed. By providing the clamping piece 4113, on one hand, the abutting piece 4112 is prevented from directly contacting the telescopic cylinder 412, and further the abutting piece 4112 is prevented from damaging the telescopic cylinder 412; on the other hand, the contact area between the clamping piece 4113 and the telescopic cylinder 412 is larger, so that the fixing effect on the telescopic cylinder 412 is improved, and the telescopic cylinder 412 is prevented from sliding in the using process.

Preferably, as shown in fig. 2, the laser cladding head further includes a second air inlet pipe 6, one end of the second air inlet pipe 6 can be communicated with an external inert gas supply device (not shown in the figure), and the other end of the second air inlet pipe is communicated with the laser nozzle assembly 4, so that the laser nozzle assembly 4 can blow out inert gas, thereby protecting a molten pool, preventing oxidation of the molten pool, and further improving the laser cladding effect.

Preferably, as shown in fig. 2 and 7, the laser nozzle assembly 4 is provided with an air inlet member 7, an annular cavity 71 is provided in the air inlet member 7, and the annular cavity 71 is respectively communicated with an external inert gas supply device (not shown in the drawings) and a passage 43 in the laser nozzle assembly 4, so that inert gas advances along the annular cavity 71 and the passage 43, and is blown out from the laser nozzle assembly 4 to protect a molten pool.

It is to be understood that the foregoing examples of the utility model are provided for the purpose of illustration only and are not intended to limit the scope of the utility model, which is defined by the claims, since modifications in both the detailed description and the application scope of the utility model will become apparent to those skilled in the art upon consideration of the teachings of the utility model. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Laser cladding head, including protection lens, its characterized in that, laser cladding head still includes:

the blowing head (1) is arranged below the protective lens, the blowing head (1) can be communicated with an external compressed air supply device, the blowing head (1) comprises a blowing port (11), the shape of the blowing port (11) is in a transverse slit shape, and the blowing port (11) is arranged towards a laser beam (8) of the laser cladding head;

the support piece (2), support piece (2) are located the below of protection lens, blow head (1) are located on support piece (2), support piece (2) are in the last position of laser cladding head is adjustable.

2. The laser cladding head according to claim 1, further comprising a support frame (3), wherein the support frame (3) is arranged below the protective lens, the support member (2) is arranged in the support frame (3), the position of the support member (2) in the support frame (3) is adjustable, a first through hole (31) and a first fastening member (32) are arranged on the support frame (3), a second through hole (21) is arranged on the support member (2), and the first fastening member (32) sequentially penetrates through the first through hole (31) and the second through hole (21) to connect the support frame (3) and the support member (2).

3. The laser cladding head according to claim 2, wherein the second through hole (21) is an elongated through hole provided in a horizontal direction.

4. The laser cladding head according to claim 2, wherein the laser cladding head comprises a laser nozzle assembly (4), the laser nozzle assembly (4) is arranged below the support frame (3), a third through hole (33) and a second fastening piece (34) are arranged on the support frame (3), a fourth through hole (4111) is arranged on the laser nozzle assembly (4), and the second fastening piece (34) sequentially penetrates through the fourth through hole (4111) and the third through hole (33) to connect the laser nozzle assembly (4) and the support frame (3).

5. The laser cladding head according to claim 4, wherein the second fastener (34) comprises a second nut (341) and a second bolt (342), the fourth through hole (4111) having a diameter larger than a diameter of a shank of the second bolt (342) and smaller than a diameter of a head of the second bolt (342).

6. The laser cladding head according to claim 4, wherein the laser nozzle assembly (4) comprises a telescopic assembly (41) and a nozzle (42), one end of the telescopic assembly (41) is connected with the support frame (3), the other end is connected with the nozzle (42), and the telescopic assembly (41) can be telescopic along the vertical direction.

7. The laser cladding head according to claim 6, wherein the telescopic assembly (41) comprises a connecting barrel (411) and a telescopic barrel (412), the connecting barrel (411) is sleeved outside the telescopic barrel (412), the telescopic barrel (412) can slide in the connecting barrel (411) along a vertical direction, a plurality of abutting pieces (4112) are arranged along a radial direction of the connecting barrel (411) in a penetrating manner, and the abutting pieces (4112) can abut against the telescopic barrel (412) to fix the telescopic barrel (412).

8. The laser cladding head according to claim 7, wherein a plurality of clamping pieces (4113) are provided in the connecting barrel (411), the plurality of clamping pieces (4113) can jointly clamp the telescopic barrel (412), and the abutting piece (4112) can abut against the clamping pieces (4113) to fix the telescopic barrel (412).

9. The laser cladding head according to claim 4, further comprising a second air inlet pipe (6), one end of the second air inlet pipe (6) being communicable with an external inert gas supply, the other end being communicable with the laser nozzle assembly (4).

10. Laser processing apparatus, characterized in that it comprises a laser cladding head according to any one of claims 1-9.