CN118272804A - Double-flow-passage converging type paraxial powder feeding nozzle - Google Patents
Double-flow-passage converging type paraxial powder feeding nozzle Download PDFInfo
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- CN118272804A CN118272804A CN202410552076.9A CN202410552076A CN118272804A CN 118272804 A CN118272804 A CN 118272804A CN 202410552076 A CN202410552076 A CN 202410552076A CN 118272804 A CN118272804 A CN 118272804A
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- plate
- channel
- wedge
- runner
- powder feeding
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- 239000000843 powder Substances 0.000 title claims abstract description 73
- 238000007789 sealing Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000004372 laser cladding Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a double-channel converging type paraxial powder feeding nozzle, which relates to the technical field of powder feeding nozzles and comprises a wedge-shaped plate, wherein connecting assemblies are fixedly arranged on the upper surface and the lower surface of the wedge-shaped plate, a main channel is arranged on the right side of the wedge-shaped plate, a sub-channel II and a sub-channel I are arranged on the right side of the wedge-shaped plate at the left side of the main channel, the sub-channel II is arranged above the sub-channel I, and a top plate and a bottom plate are respectively lapped on the upper surface and the lower surface of the wedge-shaped plate. According to the invention, the connecting plate is rotated by 90 degrees in the clockwise direction, so that the connecting plate is rotated from a horizontal state to a vertical state, the top plate and the bottom plate are locked by the connecting plate, the connecting plate is limited by the limiting plate, the adjusting stud penetrates through the connecting plate and is screwed into the top plate and the bottom plate to limit the connecting plate, the disassembly and assembly among the top plate, the wedge plate and the bottom plate are simplified, the powder feeding nozzle is more flexible to disassemble, the operation is simple and convenient, and a special tool is not required to be used for installing the powder feeding nozzle.
Description
Technical Field
The invention relates to the technical field of powder feeding nozzles, in particular to a double-channel converging type paraxial powder feeding nozzle.
Background
As a green and frontier technology, the laser remanufacturing has obvious economic benefit and good social benefit in the aspects of large-scale engineering equipment repair and important component remanufacturing. At present, a synchronous powder feeding laser cladding mode is widely adopted in the laser remanufacturing process, and the synchronous powder feeding mode is divided into coaxial powder feeding and side-axis side powder feeding according to different nozzle structures and different relative positions of the nozzle and the laser beam, wherein the corresponding nozzle structures are respectively called a coaxial powder feeding nozzle and a side powder feeding nozzle. The coaxial powder feeding can meet the requirements of manufacturing complex parts, the adaptability is high, the research of students at home and abroad on the coaxial powder feeding is more, the forming efficiency is lower, and particularly, the coaxial powder feeding is particularly suitable for occasions such as large-scale shaft part surfaces, large-area plane laser cladding and the like, the cladding efficiency can be greatly improved by utilizing broadband laser cladding at the moment, and the lap times and heat input can be reduced by the broadband cladding so as to obtain cladding layers with better quality. The broadband laser cladding generally adopts a side-axis lateral powder feeding mode, a double-channel converging type side-axis powder feeding nozzle is generally used, when powder is fed, the outlet of the side-axis powder feeding nozzle is generally about 20mm away from a molten pool, the nozzle feeds powder into a laser focusing light spot at an angle of about 45 degrees with the horizontal direction, and the laser cladding is completed by combining the directional movement of a machine tool.
The following problems exist in the prior art:
The main problems of the existing paraxial powder feeding are that the concentration degree of powder output is poor, particularly the problem that the lateral divergence of a narrow side of a powder beam is large when broadband powder is output, so that the coupling degree of light powder is poor and the utilization rate of powder is low is solved.
Disclosure of Invention
The invention provides a double-channel convergent type paraxial powder feeding nozzle, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a double-channel convergent type paraxial powder feeding nozzle, includes the wedge plate, the equal fixed mounting of upper and lower surface of wedge plate has coupling assembling, the sprue has been seted up on the right side of wedge plate, the sprue second and sprue first have been seted up to the position department that the wedge plate right side is located the sprue left side, and sprue second is located the top of sprue first, the upper and lower surface overlap joint of wedge plate has roof, bottom plate respectively, upper and lower recess has been seted up respectively to the upper and lower surface of wedge plate, the lower surface of roof constitutes the runner with the upper surface of wedge plate, the upper surface of bottom plate constitutes the runner with the lower surface of wedge plate, the right-hand member of runner and runner communicates with the exit end of sprue second and sprue first respectively, coupling assembling includes four straight channel blocks's lower surface respectively with the front and back side fixed mounting of wedge plate upper surface, the spliced pole has been cup jointed to the surface of straight channel block, and the upper end of spliced pole and wedge plate fixed mounting's upper surface, the upper end of spliced pole has the spliced pole.
Preferably, the first and second flow dividing channels are symmetrically and obliquely arranged by taking the central axis of the main flow channel as a symmetrical axis, the first and second flow dividing channels are identical in size and shape, and one ends, close to the main flow channel, of the second and first flow dividing channels are communicated with the main flow channel.
Preferably, the inner surfaces of the upper groove and the lower groove are coated with a release coating.
Preferably, the upper surface and the lower surface of the wedge plate are respectively provided with a third slot and a fourth slot, the third slot and the fourth slot are respectively positioned at the outer sides of the upper groove and the lower groove, the inner cavities of the third slot and the fourth slot are respectively provided with an upper sealing sleeve and a lower sealing sleeve in an embedded manner, and the lower sealing sleeve and the upper sealing sleeve are made of rubber materials.
Preferably, the lower surface of the top plate is provided with a first slot, the upper surface of the bottom plate is provided with a second slot, and one side of the upper sealing sleeve, which is separated from the lower sealing sleeve, is respectively spliced with the inner surfaces of the first slot and the second slot.
Preferably, the front side and the rear side of the upper surfaces of the top plate and the bottom plate are respectively provided with a straight slot in a penetrating way, and the inner surface of the straight slot is spliced with the outer surface of the straight slot block.
Preferably, an adjusting stud penetrating through the connecting plate is connected to one side of the top plate away from the wedge-shaped plate in a threaded manner.
Preferably, the adjusting stud is fixedly provided with a plurality of anti-slip raised strips on the outer surface far away from one end of the top plate, and the anti-slip raised strips are made of silica gel materials.
Preferably, the front side and the rear side of the upper surface of the top plate and the lower surface of the bottom plate are fixedly provided with limiting plates, and the limiting plates are positioned on the right sides of the limiting plates.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. The invention provides a double-channel converging type paraxial powder feeding nozzle, which is used for conveying powder through an upper channel formed by the lower surface of a top plate and an upper groove, a lower channel formed by the upper surface of a bottom plate and a lower groove, a second split channel, a first split channel and a main channel, wherein upper and lower gas powder bundles are mutually attracted and converged, the two bundles of powder can reach higher concentration in the converged center, the concentration of powder output is improved, the problem of poor coupling degree of light powder caused by aggravation of powder divergence due to diffusion of carrier gas to the periphery in the existing single-channel conveying of the gas powder is solved, the powder utilization rate is improved, and the anti-sticking effect of an anti-sticking coating on the channels is realized, so that the powder can be conveyed to a molten pool.
2. The invention provides a double-channel converging type paraxial powder feeding nozzle, which has a sealing effect on the contact position of a wedge-shaped plate, a top plate and a bottom plate through an upper sealing sleeve and a lower sealing sleeve which are made of rubber materials, and solves the problem of powder waste caused by powder entering the contact position of the plate.
3. The invention provides a double-channel converging type paraxial powder feeding nozzle, which rotates 90 degrees along the clockwise direction, so that a connecting plate rotates from a horizontal state to a vertical state, the connecting plate locks a top plate and a bottom plate, a limiting plate is used for limiting the connecting plate, an adjusting stud penetrates through the connecting plate and is screwed into the top plate and the bottom plate to limit the connecting plate, the disassembly and assembly among the top plate, a wedge-shaped plate and the bottom plate are simplified, the powder feeding nozzle is more flexible to disassemble, the operation is simple and convenient, and a special tool is not required to be used for installing the powder feeding nozzle.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic illustration of the connection of the lower and upper seal sleeves to the bottom and top plates of the present invention;
FIG. 4 is a schematic view of a wedge plate structure of the present invention;
FIG. 5 is a schematic illustration of the attachment of the anti-stiction coating of the present invention to a wedge plate;
FIG. 6 is a schematic view of the connection plate of the present invention rotated to 90;
FIG. 7 is a schematic view of a top plate structure of the present invention;
FIG. 8 is a schematic view of the bottom structure of the top plate of the present invention;
FIG. 9 is a schematic view of the structure of the base plate of the present invention;
Fig. 10 is a schematic structural view of a connection assembly according to the present invention.
In the figure: 1. a top plate; 11. slotting I; 2. wedge plate; 21. grooving III; 22. slotting fourth; 23. a main flow channel; 24. a first sub-runner; 25. a second sub-runner; 26. an upper groove; 27. a lower groove; 3. a bottom plate; 31. slotting II; 4. a connection assembly; 41. a straight groove block; 42. a connecting column; 43. a connecting plate; 44. adjusting the stud; 45. an anti-slip raised line; 46. a limiting plate; 5. a lower sealing sleeve; 6. a release coating; 7. an upper sealing sleeve; 8. a straight slot; 9. an upper flow passage; 10. and a lower flow channel.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-10, a dual-channel convergent type paraxial powder feeding nozzle comprises a wedge plate 2, wherein a connecting component 4 is fixedly installed on the upper surface and the lower surface of the wedge plate 2, a main channel 23 is formed on the right side of the wedge plate 2, a sub-channel second 25 and a sub-channel first 24 are formed on the right side of the wedge plate 2 at the left side of the main channel 23, the sub-channel second 25 is located above the sub-channel first 24, a top plate 1 and a bottom plate 3 are respectively lapped on the upper surface and the lower surface of the wedge plate 2, an upper groove 26 and a lower groove 27 are respectively formed on the upper surface and the lower surface of the wedge plate 2, an upper channel 9 is formed on the lower surface of the top plate 1 and the upper surface of the wedge plate 2, a lower channel 10 is formed on the upper surface of the bottom plate 3, the right ends of the upper channel 9 and the lower channel 10 are respectively communicated with the outlet ends of the sub-channel second 25 and the sub-channel first 24, the connecting component 4 comprises four straight groove blocks 41, the lower surfaces of the four straight groove blocks 41 are respectively fixedly installed on the front side and the rear side of the upper surface of the wedge plate 2 in a sleeved mode, the outer surfaces of the straight groove blocks 41 are respectively, the upper surfaces of the straight groove blocks 42 are connected with the upper ends 42, and the upper ends of the wedge plate 42 are fixedly connected with the upper ends of the wedge plate 43.
The powder is conveyed through an upper runner 9 formed by the lower surface of the top plate 1 and an upper groove 26, a lower runner 10 formed by the upper surface of the bottom plate 3 and a lower groove 27, a second split runner 25, a first split runner 24 and a main runner 23, upper and lower gas powder bundles are mutually attracted and converged, the two bundles of powder can reach higher concentration at the converged center, the concentration of powder output is improved, and the top plate 1, the wedge plate 2 and the bottom plate 3 are more convenient and flexible to install through the connecting component 4.
As shown in fig. 2 and fig. 4-6, the first split runner 24 and the second split runner 25 are symmetrically and obliquely arranged with the central axis of the main runner 23 as a symmetrical axis, and the sizes and shapes of the first split runner 24 and the second split runner 25 are identical, and one end, close to the main runner 23, of the first split runner 25 and the second split runner 24 is communicated with the main runner 23.
Powder is conveyed through the second split runner 25, the first split runner 24 and the main runner 23, the upper air powder beam and the lower air powder beam are mutually attracted and converged, the two powder beams can reach higher concentration in the converged center, and the concentration degree of powder output is improved.
As shown in fig. 1-6, the inner surfaces of both the upper groove 26 and the lower groove 27 are coated with a release coating 6.
The passage is made to be resistant to the passage by a release coating 6 so that the powder can be delivered to the bath.
As shown in fig. 2-9, the upper surface and the lower surface of the wedge plate 2 are respectively provided with a third slot 21 and a fourth slot 22, the third slot 21 and the fourth slot 22 are respectively positioned at the outer sides of the upper groove 26 and the lower groove 27, the inner cavities of the third slot 21 and the fourth slot 22 are respectively embedded and provided with an upper sealing sleeve 7 and a lower sealing sleeve 5, and the lower sealing sleeve 5 and the upper sealing sleeve 7 are made of rubber materials.
The upper sealing sleeve 7 and the lower sealing sleeve 5 which are made of rubber material have sealing effect on the contact positions of the wedge-shaped plate 2 and the top plate 1 and the bottom plate 3, and the problem that powder is wasted due to the fact that powder enters the contact position of the plate is solved.
As shown in fig. 2-9, a first slot 11 is formed in the lower surface of the top plate 1, a second slot 31 is formed in the upper surface of the bottom plate 3, and one side, away from the upper sealing sleeve 7 and the lower sealing sleeve 5, of the bottom plate is respectively inserted into the inner surfaces of the first slot 11 and the second slot 31.
The lower sealing sleeve 5 and the upper sealing sleeve 7 are respectively inserted into the inner cavities of the second slot 31 and the first slot 11, so that positioning is realized, and the sealing performance of the contact part of the wedge plate 2, the wedge plate 2 and the bottom plate 3 is improved.
As shown in fig. 5-10, the front and rear sides of the upper surfaces of the top plate 1 and the bottom plate 3 are respectively provided with a straight notch 8 in a penetrating way, the inner surfaces of the straight notches 8 are spliced with the outer surfaces of the straight groove blocks 41, one side of the top plate 1, which is far away from the wedge-shaped plate 2, is in threaded connection with an adjusting stud 44 penetrating through the connecting plate 43, a plurality of anti-slip raised strips 45 are fixedly arranged on the outer surfaces of one ends of the adjusting studs 44, which are far away from the top plate 1, and the anti-slip raised strips 45 are made of silica gel materials.
The connecting plate 43 is in the horizontal state in the initial stage, place roof 1 and bottom plate 3 at wedge plate 2 upper and lower surface respectively, make straight flute piece 41, connecting plate 43 pass straight notch 8 and expose in roof 1 and bottom plate 3 outside, rotate 90 along clockwise, make connecting plate 43 by horizontal state rotation to vertical state, make connecting plate 43 lock roof 1 and bottom plate 3, pass connecting plate 43 screw in roof 1 and bottom plate 3 with adjusting stud 44 and carry out spacing to connecting plate 43, simplify the dismouting between roof 1, wedge plate 2, the bottom plate 3, easy operation, it is convenient to need not to use specialized tool to install it, utilize anti-skidding sand grip 45 of silica gel material to play anti-skidding effect to adjusting stud 44.
As shown in fig. 10, the limiting plate 46 is fixedly installed on the front and rear sides of the upper surface of the top plate 1 and the lower surface of the bottom plate 3, and the limiting plate 46 is positioned on the right side of the limiting plate 46.
The connection plate 43 is limited by a limiting plate 46.
The working principle of the invention is as follows: the connecting plate 43 is in a horizontal state at first, the top plate 1 and the bottom plate 3 are respectively placed on the upper surface and the lower surface of the wedge-shaped plate 2, the straight groove blocks 41 and the connecting plate 43 penetrate through the straight groove openings 8 to be exposed out of the top plate 1 and the bottom plate 3, the connecting plate 43 is rotated 90 degrees in the clockwise direction, the connecting plate 43 is rotated to be in a vertical state from the horizontal state, the top plate 1 and the bottom plate 3 are locked by the connecting plate 43, the adjusting studs 44 penetrate through the connecting plate 43 and are screwed into the top plate 1 and the bottom plate 3 to limit the connecting plate 43, the installation of the top plate 1, the wedge-shaped plate 2 and the bottom plate 3 can be completed, powder is conveyed through the upper runner 9 formed by the lower surface of the top plate 1 and the upper groove 26, the lower runner 10 formed by the upper surface of the bottom plate 3 and the lower groove 27, the first runner 25, the first runner 24 and the total runner 23, the upper and the lower air-powder bundles are mutually attracted and converged at the converged center, the concentration of the two bundles of powder can reach higher concentration at the converged center, the concentration of the powder output is improved, the anti-sticking effect is achieved by the anti-sticking effect of the anti-sticking coating 6 on the channels, the powder can be conveyed to a molten pool, and the sealing effect is achieved through the upper sealing sleeve 7 made of rubber material and the sealing effect and the positions of the sealing sleeve 2 and the top sealing plate and the top plate 2 and the top plate 3.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (9)
1. The utility model provides a double-flow-passage convergent type paraxial powder feeding nozzle, includes wedge plate (2), its characterized in that: the upper surface and the lower surface of the wedge plate (2) are fixedly provided with a connecting component (4), the right side of the wedge plate (2) is provided with a main runner (23), the right side of the wedge plate (2) is provided with a sub-runner II (25) and a sub-runner I (24) which are positioned at the left side of the main runner (23), the sub-runner II (25) is positioned above the sub-runner I (24), the upper surface and the lower surface of the wedge plate (2) are respectively lapped with a top plate (1) and a bottom plate (3), the upper surface and the lower surface of the wedge plate (2) are respectively provided with an upper groove (26) and a lower groove (27), the lower surface of the top plate (1) and the upper surface of the wedge plate (2) form an upper runner (9), the upper surface of the bottom plate (3) and the lower surface of the wedge-shaped plate (2) form a lower runner (10), the right ends of the upper runner (9) and the lower runner (10) are respectively communicated with the outlet ends of the second flow dividing runner (25) and the first flow dividing runner (24), the connecting component (4) comprises four straight groove blocks (41), the lower surfaces of the four straight groove blocks (41) are respectively fixedly arranged on the front side and the rear side of the upper surface of the wedge-shaped plate (2), the outer surfaces of the straight groove blocks (41) are sleeved with connecting columns (42), and the lower ends of the connecting columns (42) are fixedly arranged on the upper surface of the wedge-shaped plate (2), the upper end of the connecting column (42) is rotatably connected with a connecting plate (43).
2. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 1, wherein: the first flow dividing channel (24) and the second flow dividing channel (25) are symmetrically and obliquely arranged by taking the central axis of the main flow channel (23) as a symmetrical axis, the first flow dividing channel (24) and the second flow dividing channel (25) are identical in size and shape, and one ends, close to the main flow channel (23), of the first flow dividing channel (25) and the second flow dividing channel (24) are communicated with the main flow channel (23).
3. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 1, wherein: the inner surfaces of the upper groove (26) and the lower groove (27) are coated with a release coating (6).
4. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 1, wherein: the upper surface and the lower surface of wedge plate (2) have seted up fluting third (21) and fluting fourth (22) respectively, and fluting third (21) and fluting fourth (22) are located the outside of upper groove (26) and lower groove (27) respectively, the inner chamber of fluting third (21) and fluting fourth (22) is embedded respectively and is installed seal cover (7) and seal cover (5) down, the material of seal cover (5) down and seal cover (7) is rubber material.
5. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 4, wherein: the upper sealing sleeve is characterized in that a first grooving (11) is formed in the lower surface of the top plate (1), a second grooving (31) is formed in the upper surface of the bottom plate (3), and one side, away from the upper sealing sleeve (7) and the lower sealing sleeve (5), of the upper sealing sleeve is respectively spliced with the inner surfaces of the first grooving (11) and the second grooving (31).
6. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 1, wherein: straight notch (8) have all been run through to front and back side of roof (1) and bottom plate (3) upper surface, the internal surface of straight notch (8) is pegged graft with the surface of straight groove piece (41).
7. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 1, wherein: one side of the top plate (1) far away from the wedge-shaped plate (2) is in threaded connection with an adjusting stud (44) penetrating through the connecting plate (43).
8. The dual-channel convergent bypass powder delivery nozzle set forth in claim 7, wherein: the outer surface of one end, far away from the top plate (1), of the adjusting stud (44) is fixedly provided with a plurality of anti-slip raised strips (45), and the anti-slip raised strips (45) are made of silica gel materials.
9. The dual-channel convergent type paraxial powder feeding nozzle as defined in claim 1, wherein: limiting plates (46) are fixedly arranged on the front side and the rear side of the upper surface of the top plate (1) and the lower surface of the bottom plate (3), and the limiting plates (46) are positioned on the right side of the limiting plates (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410552076.9A CN118272804A (en) | 2024-05-06 | 2024-05-06 | Double-flow-passage converging type paraxial powder feeding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410552076.9A CN118272804A (en) | 2024-05-06 | 2024-05-06 | Double-flow-passage converging type paraxial powder feeding nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118272804A true CN118272804A (en) | 2024-07-02 |
Family
ID=91648231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410552076.9A Pending CN118272804A (en) | 2024-05-06 | 2024-05-06 | Double-flow-passage converging type paraxial powder feeding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118272804A (en) |
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2024
- 2024-05-06 CN CN202410552076.9A patent/CN118272804A/en active Pending
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