CN207713821U - A kind of expansible multiple laser cladding head of center powder feeding - Google Patents
A kind of expansible multiple laser cladding head of center powder feeding Download PDFInfo
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- CN207713821U CN207713821U CN201721582287.9U CN201721582287U CN207713821U CN 207713821 U CN207713821 U CN 207713821U CN 201721582287 U CN201721582287 U CN 201721582287U CN 207713821 U CN207713821 U CN 207713821U
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Abstract
The utility model belongs to the corollary apparatus of laser process equipment, is related to a kind of laser melting coating head more particularly to a kind of expansible multiple laser cladding head of center powder feeding, includes mainly main frame, powder feeding pipe and at least two laser export heads；The central through hole vertically through main frame top and bottom is offered on main frame；Powder feeding pipe passes through central through hole and is fixed on main frame；Laser export head is circumferentially arranged centered on powder feeding pipe at the top of main frame；The inside of main frame is also equipped with the laser channeling with laser beams coaxial along laser beam direction, the central shaft of laser channeling and the central shaft of central through hole are coplanar, and two angles between axis is acute angle, ensure that powder feeding pipe is not located in laser optical path, it is complicated to solve existing center powder feeding laser cladding head, the low problem of utilization ratio of laser energy.It can be used for general laser metal surface cladding, laser repairing, laser welding and the laser metal quickly fields such as manufacture.
Description
Technical field
The utility model belongs to the corollary apparatus of laser process equipment, is related to a kind of laser melting coating head, more particularly to a kind of
The expansible multiple laser cladding head of center powder feeding.
Background technology
Laser melting coating is also referred to as laser cladding or laser cladding, is a kind of Laser Surface Modification Technology.It is to be added with different
Material mode is placed on by cladding matrix surface to be allowed to and matrix surface a thin layer by cladding material (metal powder) through laser irradiation
It melts simultaneously, and quickly formation dilution is extremely low after solidification, with matrix at the face coat of metallurgical binding, significantly improves base's table
Wear-resisting, anti-corrosion, heat-resisting, anti-oxidant and electrical characteristic the process in face, to achieve the purpose that surface is modified or repairs, both
The requirement to material surface particular characteristic is met, and has saved a large amount of noble element.
According to by the relative motion path of cladding material and laser beam, laser melting coating can be divided into central light beam cladding and
Center powder feeding cladding.Central light beam cladding application is more universal, centered on laser beam, metal powder around the light beam with light
Beam is synchronous or is preset to substrate surface, and metal powder is irradiated with matrix surface a thin layer simultaneously in matrix surface by laser beam
Melt, quickly forms the face coat of metallurgical binding after solidification.
Central light beam cladding scheme has the following problems：
(1) metal powder utilization rate is low, and undosed metal powder splashes to outside processing district；(2) dust pollution is serious, seriously
Influence operating personnel's health；(3) utilization ratio of laser energy is low, and portion of energy is by base material absorption loss.
Central light beam cladding is compared in center powder feeding cladding can solve its existing above problem in the application, but due to its work
Skill realizes that difficulty is big, cladding head complex structural designs, and market application is less.
Chinese patent CN201710059713.9 discloses a kind of center powder feeding cladding apparatus, i.e., a kind of center powder feeding cladding
Head design converts incident beam to annular cone by building taper reflection diffusion mirror and reflection focus pack in cladding head inner cavity
Incident beam is expanded and is reflected along the taper anti-along the circumferencial direction for spreading border by shape hollow beam, wherein taper reflection diffusion mirror
It penetrates to form the reflected beams；It includes reflection focusing surface and reflecting surface to reflect focus pack, and wherein transmitting focusing face receives transmitting light
Beam emits to form focus on light beam again, until base material forms focal beam spot, with melt be located in the focal beam spot by cladding material,
And then molten bath is formed on the substrate；The reflecting surface receiving portion the reflected beams reflect to form preheating light beam again, preheat light
Beam above base material to, by cladding material preheater, preheating and slow cooling being carried out to base material.Metal powder passes through powder feeding in this scheme
Channel is sent to hollow no light zone, realizes center powder feeding cladding, solves the problems, such as that above-mentioned center light beam cladding exists.But it still deposits
In following problem：(1) bearing rib inside the cladding head is located in beam path, influences beam Propagation, causes fraction of laser light
Energy loss；(2) powder feeding channel passes through laser beam to enter hollow no light zone, influences beam Propagation, causes fraction of laser light energy
Loss；(3) reflection diffusion mirror and reflection focus pack difficulty of processing are big, and are influenced by itself reflectivity, and fraction of laser light can be lost
Energy；(4) this kind of structure cladding head cannot be used for superpower (myriawatt grade) laser melting coating due to the above reasons,.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, and the high center powder feeding of utilization ratio of laser energy is expansible more
Beam laser melting coating head closes beam by multiple laser space, realizes center powder feeding cladding, it is molten to can be used for general laser metal surface
It covers, the quickly manufacture etc. of laser repairing, laser welding and laser metal.
The technical solution of the utility model is to provide a kind of expansible multiple laser cladding head of center powder feeding, especially
Place is：Including main frame, powder feeding pipe and at least two laser export heads；
The central through hole vertically through main frame top and bottom is offered on aforementioned body frame；
Above-mentioned powder feeding pipe passes through central through hole and is fixed on main frame；
Above-mentioned laser export head is circumferentially arranged centered on powder feeding pipe at the top of main frame；The inside of aforementioned body frame also edge
Laser beam direction is equipped with the laser channeling with laser beams coaxial, the central shaft of above-mentioned laser channeling and the center of central through hole
Axis is coplanar, and the angle between two axis is acute angle, it is ensured that powder feeding pipe is not located in laser optical path, does not influence the transmission of light beam.
Preferably, light path pollutes in order to prevent, and the utility model laser melting coating head further includes guarantor corresponding with laser channeling
Goggle seat and protection eyeglass, above-mentioned protection microscope base are removably embedded in inside main frame；Above-mentioned protection eyeglass installation
In on protection microscope base, and protect eyeglass central shaft and laser beam center overlapping of axles.It, can in time more when protecting eyeglass contaminated
It changes.
Preferably, in order to preferably fix powder feeding pipe, the utility model laser melting coating head further includes locator, above-mentioned fixed
Position device is detachably secured to the bottom of main frame, have locating slot, above-mentioned locating slot and central through hole inside above-mentioned locator
It communicates；Above-mentioned powder feeding pipe is fixed on across central through hole in locating slot, in the central shaft and central through hole of above-mentioned laser channeling
Corner dimension between mandrel ensures that powder feeding pipe and locator are not located in laser optical path.
Preferably, the utility model laser melting coating head further includes connector, and above-mentioned connector is hollow, class cone structure,
Including big end and small end, big end is detachably connected with main frame bottom, locator, powder feeding pipe, and laser beam is located at connector
In taper cavity.
Preferably, laser export head is circumferentially evenly spaced on main frame centered on powder feeding pipe；Laser beam point of intersection
The diameter of laser beam is more than the cross section of metal powder in powder feeding pipe, and distance of the laser beam intersection point away from matrix goes out less than powder feeding pipe
Mouthful the distance between with matrix, it is ensured that locator and powder feeding pipe do not influence the transmission of laser beam.
Preferably, air impacts laser processing zone in order to prevent, and the utility model laser melting coating head further includes tool
The gas nozzle for having gas access further includes the water cooling mouth with water inlet further for cooling gas nozzle；
Above-mentioned gas nozzle is hollow, class cone structure, including big end and small end, big end be detachably connected with connector,
Toroidal cavity is formed with connector outer wall, there is annular pyramidal space between small end and connector outer wall；
Above-mentioned water cooling mouth is hollow, class cone structure, including big end and small end, big end be detachably connected with gas nozzle,
Water cooling mouth forms class tapering annular cavity with gas nozzle outer wall.
Preferably, the big end of connector, gas nozzle and water cooling mouth is hollow cylinder, and small end is the frustum of a cone, respectively
The tapering end face of the frustum of a cone is generally aligned in the same plane.
Preferably, above-mentioned laser export head is fixed on by flange on main frame；Above-mentioned gas nozzle and connector screw thread
Connection, above-mentioned water cooling mouth are threadedly coupled with gas nozzle；
Above-mentioned locator is class cone structure, and cone bottom is connect with main frame bottom thread；
Aforementioned body frame bottom is equipped with tubular fixing piece, and above-mentioned connector is connected through a screw thread with fixing piece；
Above-mentioned protection microscope base is screwed in inside main frame；
Above-mentioned powder feeding pipe is fixed on by jackscrew in locating slot.
Preferably, above-mentioned protection microscope base includes pedestal, and protection eyeglass mounting hole, above-mentioned protective glass are offered on above-mentioned pedestal
Piece is mounted in the protection eyeglass mounting hole.
The utility model also provide the expansible multiple laser cladding head of above-mentioned center powder feeding laser metal surface cladding,
The application of laser repairing, laser welding and the quick manufacturing field of laser metal.
The utility model has the beneficial effects that：
1, the utility model includes multiple laser export heads, and multiple laser light beam carries out space and closes beam, and laser energy utilizes
Rate is high and is lost without laser energy along beam path；
2, laser output stability is the important parameter index of laser melting and coating process, and multiple beam, which closes binding structure, can realize superelevation
Power (myriawatt grade) laser exports, compared to traditional single beam laser, when same ultra high power laser (myriawatt grade) exports, this
Utility model stability is higher；
3, the utility model further includes protective glass, protects laser optical path not contaminated, easy to maintain, occur pollution after can and
Shi Genghuan protects eyeglass；
4, multi-beam laser, which closes beam technical solution, reduces equipment fault risk, long lasting for going out ray laser in commercial Application
Device failure rate is higher, each laser generator independence light extraction of the program, certain all the way light beam break down under the premise of, other light paths can be just
Normal light extraction avoids equipment downtime can not normal use；
5, the utility model is simple in structure, processing easy to produce, low manufacture cost, is easy to promote in the industry.
Description of the drawings
Fig. 1 is the expansible multiple laser cladding head structural schematic diagram of embodiment center powder feeding；
Fig. 2 is the expansible multiple laser cladding head vertical view of center powder feeding with four groups of laser export heads；
Fig. 3 is protection mirror-seat structure schematic diagram；
Fig. 4 is the present embodiment operation principle schematic diagram.
Reference numeral is in figure：1- laser export heads, 2- main frames, 3- locators, 4- gas nozzles, 5- water cooling mouths, 6-
Connector, 9- locating slots；
22- powder feeding pipes, 24- laser channelings, 25- central through holes, 215- protect microscope base, 35- to protect eyeglass, 41- laser lights
Beam, 42- metal powders, 45- laser beam intersection points, 51- matrixes.
Specific implementation mode
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The utility model provides a kind of center powder feeding laser cladding head, and Shu Shixian center powder feedings are closed by multiple laser space
Laser melting coating.It will be seen from figure 1 that the present embodiment mainly include laser export head 1, main frame 2, locator 3, gas nozzle 4,
Water cooling mouth 5, connector 6, powder feeding pipe 22, protection microscope base 215, protection eyeglass 35；
Laser export head 1 is 2 or 2 or more, is illustrated by taking 4 laser export heads as an example in the present embodiment；Main body
2 upper edge beam direction of frame is equipped with 4 road laser channelings 24, and laser channeling 24 is corresponding with laser export head 1 coaxial；2 center of main frame
There is central through hole 25 in position；Upper and lower surface of the central through hole 25 vertically through main frame 2；All laser export heads 1 are with center
It is circumferentially uniform centered on through-hole 25 to be arranged on main frame 2；The laser export head 1 is respectively with respect to central through hole 25 with certain
Angle tilt, angle are acute angle, it is ensured that locator is not located in light path, and makes distance of the intersection point away from matrix of laser beam small
In the distance between powder feeding pipe and matrix；Laser export head 1 is fixed on by flange screw on main frame 2；Protect microscope base 215 with
Dismountable mode is embedded in 2 inside (being screwed in the present embodiment) of main frame and is corresponded with laser channeling 24,
Protection eyeglass 35 is installed on protection microscope base 215, and central shaft and laser beam center overlapping of axles, prevents molten metal powder from spouting
It splashes to laser export head, light path is caused to pollute.It needs to inspect periodically protection eyeglass 35 in practical application, occurring can be timely after polluting
Replace protection eyeglass 35.Locator 3 is threadably secured in 2 bottom of main frame；There is locating slot 9 inside locator 3, locating slot 9,
Locator 3 and 25 three of central through hole are coaxial；Powder feeding pipe 22 is built in central through hole 25, and locating slot is fixed in its underpart
In 9；Connector 6 is class taper thin-walled hollow structure, including big end and small end, and big end is connect by screw thread with main frame 2, at this
In embodiment, the bottom of main frame is equipped with tubular fixing piece, and big end and the fixing piece of connector are connected through a screw thread；Gas nozzle
4 be class taper thin-walled hollow structure, including big end and small end, big end connect by screw thread with connector 6, and outside connector 6
Wall forms toroidal cavity, and annular pyramidal space is formed between 6 outer wall of small end and connector；Water cooling mouth 5 is class taper thin-walled hollow
Structure, including big end and small end, big end are connect by screw thread with gas nozzle 4, and water cooling mouth 5 forms class with 4 outer wall of gas nozzle
Tapering annular cavity；In the present embodiment by taking one group of gas circuit and water route as an example, protective gas generally selects the inertia such as nitrogen or oxygen
Gas prevents air from being impacted to laser processing zone, and water route can cool down gas nozzle.It can be set in this structure in practical application
Meter inwardly carries out gas circuit and is extended with water route.
The further principle of the utility model is illustrated in conjunction with Fig. 3, when equipment works, Shu Yu is closed in 4 beam laser beam, 41 space
Disperse after laser beam intersection point 45, matrix 51 is located at nearly point of intersection below point of intersection, and point of intersection laser beam spot sizes are more than gold
Belong to 42 cross section of powder, it is ensured that laser beam central part carries out preheating to metal powder and forms molten bath, laser in matrix surface
It is slow that light beam peripheral part carries out pre- hot and cold to matrix.
What the utility model was proposed closes Shu Shixian center powder feedings centered on powder feeding pipe by multiple beam around progress space
Design philosophy be protection core.Without departing from the concept of the premise utility, the several modifications and improvements made, all belong to
In the scope of protection of the utility model.Meanwhile the utility model will not be restricted to embodiment illustrated herein, and be to fit to
Widest range consistent with the principles and novel features disclosed in this article.
Claims (9)
1. a kind of expansible multiple laser cladding head of center powder feeding, it is characterised in that：Including main frame (2), powder feeding pipe (22) and
At least two laser export heads (1)；
The central through hole (25) vertically through main frame (2) top and bottom is offered on the main frame (2)；
The powder feeding pipe (22) passes through central through hole (25) and is fixed on main frame (2)；
The laser export head (1) is circumferentially arranged centered on powder feeding pipe (22) at the top of main frame (2)；The main frame (2)
Inside be also equipped with laser channeling (24) with laser beams coaxial, the center of the laser channeling (24) along laser beam direction
Axis and the central shaft of central through hole (25) are coplanar, and the angle between two axis is acute angle, it is ensured that powder feeding pipe (22) is not located at laser
In light path.
2. powder feeding expansible multiple laser cladding head in center according to claim 1, it is characterised in that：Further include and laser
The corresponding protection microscope base (215) in channel (24) and protection eyeglass (35), the protection microscope base (215) removably embed
It is internal in main frame (2)；The protection eyeglass (35) is installed in protection microscope base (215), and protect eyeglass (35) central shaft with
Laser beam center overlapping of axles.
3. powder feeding expansible multiple laser cladding head in center according to claim 2, it is characterised in that：It further include locator
(3), the locator (3) is detachably secured to the bottom of main frame (2), have locating slot inside the locator (3)
(9), the locating slot (9) communicates with central through hole (25)；The powder feeding pipe (22) is fixed on positioning across central through hole (25)
In slot (9), the corner dimension between the central shaft and the central shaft of central through hole (25) of the laser channeling (24) ensures powder feeding
(22) and locator (3) is managed not to be located in laser optical path.
4. powder feeding expansible multiple laser cladding head in center according to claim 3, it is characterised in that：It further include connector
(6), the connector (6) is hollow, class cone structure, including big end and small end, big end detachably connect with main frame (2) bottom
It connects, locator (3), powder feeding pipe (22), laser beam is located in the taper cavity of connector (6).
5. powder feeding expansible multiple laser cladding head in center according to claim 4, it is characterised in that：Laser export head
(1) it is circumferentially evenly spaced in centered on powder feeding pipe (22) on main frame (2)；Laser beam is straight at laser beam intersection point (45)
Diameter is more than the cross section of powder feeding pipe (22) interior metal powder (42), and distance of the laser beam intersection point (45) away from matrix (51) is less than powder feeding
Manage the distance between (22) outlet and matrix (51).
6. powder feeding expansible multiple laser cladding head in center according to claim 5, it is characterised in that：Further include with gas
The gas nozzle (4) of body entrance and the water cooling mouth (5) with water inlet；
The gas nozzle (4) is hollow, class cone structure, including big end and small end, big end detachably connect with connector (6)
It connects, toroidal cavity is formed with connector (6) outer wall, there is annular pyramidal space between small end and connector (6) outer wall；
The water cooling mouth (5) is hollow, class cone structure, including big end and small end, big end detachably connect with gas nozzle (4)
It connects, water cooling mouth (5) forms class tapering annular cavity with gas nozzle (4) outer wall.
7. powder feeding expansible multiple laser cladding head in center according to claim 6, it is characterised in that：Connector (6), gas
The big end of body nozzle (4) and water cooling mouth (5) is hollow cylinder, and small end is the frustum of a cone, the tapering end face position of each frustum of a cone
In same plane.
8. powder feeding expansible multiple laser cladding head in center according to claim 7, it is characterised in that：The laser output
Head (1) is fixed on by flange on main frame (2)；The gas nozzle (4) is threadedly coupled with connector (6), the water cooling mouth
(5) it is threadedly coupled with gas nozzle (4)；
The locator (3) is class cone structure, and cone bottom is connect with main frame (2) bottom thread；
Main frame (2) bottom is equipped with tubular fixing piece, and the connector (6) is connected through a screw thread with fixing piece；
It is internal that the protection microscope base (215) is screwed in main frame (2)；
The powder feeding pipe (22) is fixed on by jackscrew in locating slot (9).
9. according to any expansible multiple laser cladding heads of center powder feeding of claim 2-8, it is characterised in that：The guarantor
Goggle seat (215) includes pedestal, and protection eyeglass mounting hole is offered on the pedestal, and the protection eyeglass (35) is mounted on described
It protects in eyeglass mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582287.9U CN207713821U (en) | 2017-11-23 | 2017-11-23 | A kind of expansible multiple laser cladding head of center powder feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582287.9U CN207713821U (en) | 2017-11-23 | 2017-11-23 | A kind of expansible multiple laser cladding head of center powder feeding |
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| Publication Number | Publication Date |
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| CN207713821U true CN207713821U (en) | 2018-08-10 |
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| CN201721582287.9U Active CN207713821U (en) | 2017-11-23 | 2017-11-23 | A kind of expansible multiple laser cladding head of center powder feeding |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455377A (en) * | 2020-05-19 | 2020-07-28 | 宝宇(武汉)激光技术有限公司 | Laser cladding device and method |
| CN112159978A (en) * | 2020-08-27 | 2021-01-01 | 东南大学 | Center powder feeding type cladding head capable of preheating and tempering |
| CN113308691A (en) * | 2021-05-24 | 2021-08-27 | 安徽淮海奥可装备再制造有限公司 | Laser cladding head for plane remanufacturing and manufacturing method thereof |
| CN113637969A (en) * | 2021-08-17 | 2021-11-12 | 杭州智钒激光科技有限公司 | Laser cladding processing method with multidirectional light beam synchronization effect |
-
2017
- 2017-11-23 CN CN201721582287.9U patent/CN207713821U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455377A (en) * | 2020-05-19 | 2020-07-28 | 宝宇(武汉)激光技术有限公司 | Laser cladding device and method |
| CN111455377B (en) * | 2020-05-19 | 2024-03-26 | 宝宇(武汉)激光技术有限公司 | Laser cladding device and method |
| CN112159978A (en) * | 2020-08-27 | 2021-01-01 | 东南大学 | Center powder feeding type cladding head capable of preheating and tempering |
| CN112159978B (en) * | 2020-08-27 | 2022-09-02 | 东南大学 | Center powder feeding type cladding head capable of preheating and tempering |
| CN113308691A (en) * | 2021-05-24 | 2021-08-27 | 安徽淮海奥可装备再制造有限公司 | Laser cladding head for plane remanufacturing and manufacturing method thereof |
| CN113637969A (en) * | 2021-08-17 | 2021-11-12 | 杭州智钒激光科技有限公司 | Laser cladding processing method with multidirectional light beam synchronization effect |
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Effective date of registration: 20201026 Address after: 272000 Chengxiang Avenue and Jiamei Road Intersection of Jining Economic Development Zone, Shandong Province, Lunan New Energy Automobile Industrial Park Patentee after: Shandong Zhongke Meimei Laser Technology Co.,Ltd. Address before: 1 building, No. 710119, information Avenue, hi tech Zone, Shaanxi, Xi'an, 17 Patentee before: XI'AN ZHONGKE ZHONGMEI LASER TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |