CN206614147U - The adjustable laser cladding apparatus of cladding track - Google Patents
The adjustable laser cladding apparatus of cladding track Download PDFInfo
- Publication number
- CN206614147U CN206614147U CN201720228735.9U CN201720228735U CN206614147U CN 206614147 U CN206614147 U CN 206614147U CN 201720228735 U CN201720228735 U CN 201720228735U CN 206614147 U CN206614147 U CN 206614147U
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- Prior art keywords
- cladding
- laser
- powder feeding
- powder
- head
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Abstract
A kind of adjustable laser cladding apparatus of cladding track, including laser melting coating head component, laser, powder feeder and central controller;Cladding head is arranged in the vertical adjusting means that cladding head can be driven vertically to move up and down, and lens are provided with cladding head;Powder feeding pipe is arranged on cladding head by the angle regulator of adjustable corner dimension between powder feeding pipe and cladding head;There is signal transmitting device, powder feeding controller and calculator in the central controller.The utility model can both adjust the width of cladding track, can also be while spot size changes according to the change of cladding width adjustment powder conveying capacity and powder feeding angle, do not result in cladding track height fluctuating and cross sectional shape it is unstable, and laser power density keeps constant, so that the thickness of cladding layer keeps constant, it is ensured that cladding effect.
Description
Technical field
The utility model is related to a kind of adjustable laser cladding apparatus of cladding track.
Background technology
Coaxial cladding head is a kind of conventional laser melting coating machining tool, and the structure of traditional coaxial cladding head is:With logical
The fixed lens group convergence laser beam of axis is crossed, to realize the remittance of powder stream along the symmetrical powder feeding runner in same axis
Poly-, laser beam and powder stream are all converged on same axis.The laser convergence focus and powder of this traditional coaxial cladding head
Convergent point is all fixed, it is thus impossible to realize the adjustment and change of cross-sectional width at diverse location on a cladding track.
The thin-wall complicated part such as blade has the characteristics of thin wall, section track complexity, cross-sectional width are with trail change, uses
When conventional coaxial cladding head carries out the cladding manufacture of such part and remanufactures reparation, because the width of cladding track can not be adjusted
It is whole, generally require repeatedly to overlap in same aspect, so add the processing number of times of thermal cycle, be not only unfavorable for quality control but also
Reduce efficiency.In order to realize the regulation of spot size in laser cladding process, the not bright Hough laser research institute (ILT) of Germany sets
The cladding head of mobile lens group structure is counted, its operation principle is as shown in Figure 1:In process, cladding head 2, laser go out
Mouthful distance processing plane distance (H) do not change, powder conveying device 3, angled conveyor α, also do not change;But, in processing
At the diverse location of movement locus, driven by using the straight-line displacement adjusting apparatus by spindle motor 7, and nut 6, composition saturating
Mirror 4, is moved up and down along its axis, to change lens 4, and cladding head 2, laser exit distance (L) so that change plus
Laser beam 1 during work, the focus of convergence converges hot spot 5 at diverse location to realize in same processing plane, diameter (D)
The regulation of size.
Although the above method of not bright Hough laser research institute of Germany can be by changing the hot spot of diverse location on track
Size realizes the change of cladding track width, but is not adjusted while spot size is changed according to the change of cladding width
Powder conveying capacity and the position of powder conveying, this fluctuating that can cause cladding track height and cross sectional shape it is unstable;In addition,
Because high-power laser beam can be caused gathering for heat on lens by lens, the program is moved using servomotor drive lens
Scheme, be unfavorable for inside cladding head arranging heat abstractor in less space, therefore the laser light by lens can be limited
The power of beam.
The content of the invention
To overcome defect present in background technology, the utility model aims to provide cladding rail in a kind of laser cladding process
Stitch width is adjustable and does not result in the fluctuating of cladding layer height and the unstable laser cladding apparatus of cross sectional shape.
The utility model is during laser melting coating track scanning, on the one hand, is driven and adjusted by vertical adjusting means
The distance of the laser exit of lens and cladding head, forms hot spot convergent point and the defocusing amount of cladding plane changes, so as to adjust light
The size of spot size is to realize the change of cladding track width;On the other hand, powder is adjusted while cladding change width defeated
The angle amount of sending and that powder is converged, so that the height and cross sectional shape of the cladding track of change width are stable, is improved molten
Cover quality.
The technical scheme that the utility model solves the above problems is:
The adjustable laser cladding apparatus of cladding track, including laser melting coating head component, laser, powder feeder and center control
Device, laser and powder feeder are connected with laser melting coating head component, laser melting coating head component, laser and powder feeder with center
Controller is connected;
The laser melting coating head component include cladding head, the cladding head be arranged on can drive cladding head vertically on
In the vertical adjusting means of lower movement, the top of the cladding head vertically is provided with laser entrance, and the cladding head edge is perpendicular
Nogata to lower section be provided with laser exit;Lens are provided with cladding head, and lens are coaxially disposed with the cladding head;
The cladding head is externally provided with powder feeding pipe, and powder feeding pipe passes through adjustable corner dimension between powder feeding pipe and cladding head
Angle regulator is arranged on cladding head;The outlet of powder feeding pipe is downward, and the extended line and cladding head of the axis of powder feeding pipe
The extended line of axis intersect, to ensure that laser beam from laser exit and the powder of the outlet from powder feeding pipe are met;
The vertical adjusting means includes the first spindle motor being fixedly installed, the first output of first spindle motor
Vertically downward, the outer wall of cladding head is provided with the first nut being engaged with first output shaft, first output shaft to axle
It is meshed with first nut, to drive cladding head to move up and down;
The angle regulator include the second spindle motor and the second nut, the powder feeding pipe close to outlet one end with
The outer wall of cladding head is hinged, and the powder feeding pipe is hinged close to one end of import and the outer wall of the second nut, second nut with
Second output shaft of the second spindle motor is meshed, and second output shaft is horizontally disposed;Central controller and the first leading screw
Motor and the second spindle motor are connected;
Laser is connected by laser transfer passage with laser entrance, and powder feeder passes through powder feeding passage and the entrance of powder feeding pipe
It is connected;
There is the signal transmitting device for the power output for being used to adjust laser, the center control in the central controller
Device is connected by signal transmitting device with laser;There is the powder feeding for the powder sending quantity for being used to adjust powder feeder in the central controller
Controller, the central controller is connected by powder feeding controller with powder feeder;
Angle between the tangent line for the outside wall surface for defining the axis of powder feeding pipe and the cladding head of powder feeding pipe installation place is to send
Powder angle;
Having in the central controller is used for the first motor driver of the first spindle motor of control, for controlling second
Second motor driver of spindle motor;Also have in the central controller and central control is fed back to according to the first motor driver
The calculator of the positional information calculation powder sending quantity of first spindle motor of device processed, powder feeding angle and required laser power, it is described in
Centre controller drives powder feeding respectively according to what calculator was exported with powder amount information, powder feeding angle information and required laser power information
Device, the second spindle motor and laser action.
A kind of regulation cladding track implemented using the adjustable laser cladding apparatus of cladding track described in the utility model
The method of width, comprises the following steps:
(1) central controller sends control instruction to the first motor driver, and the first motor driver is according to from center
Rotation direction, velocity of rotation, the control instruction of rotation time of controller drive the first spindle motor to rotate, to drive cladding head
Vertical motion, makes laser beam defocus in processing plane, the hot spot of diameter change is produced, so that it is wide to adjust cladding track
Degree;
(2) to ensure that cladding effect is constant while cladding track change width, the calculator of central controller according to
The real-time position information of first spindle motor calculates the powder sending quantity that should be matched to adapt to the hot spot of size real-time change, powder feeding
Angle and laser power, to ensure that the laser power density that hot spot is obtained keeps constant and cladding layer thickness to keep constant;
(3) the required laser power delivering control instruction that central controller is exported according to calculator is to signal transmitting
Device, laser starts, and signal transmitting device adjusts the power output of laser in real time so that the hot spot of diameter change is obtained
Laser power density keep it is constant;
(4) the powder feeding angle information that central controller is exported according to calculator sends control instruction to the second motor and driven
Device, the second motor driver adjusts the powder feeding angle of powder feeding pipe in real time, powder beam is converged in the treatment of surfaces of components all the time;
(5) the powder sending quantity information that central controller is exported according to calculator sends control instruction to powder feeding controller in real time,
Powder feeder starts, and powder feeding controller adjusts the powder sending quantity of powder feeder in real time, to adapt to the hot spot of diameter change, makes cladding
The thickness of layer keeps constant.
The beneficial effects of the utility model are mainly manifested in:
1st, the utility model can both adjust the width of cladding track, can also be while spot size changes according to molten
Cover the change adjustment powder conveying capacity and powder feeding angle of width, do not result in cladding track height fluctuating and cross sectional shape not
It is stable, and laser power density keeps constant so that the thickness of cladding layer keeps constant, it is ensured that cladding effect.
2nd, lens are arranged in cladding head, are swashed by changing the vertical position of cladding head to adjust lens indirectly with cladding head
The distance between light exit, solves the problem of laser power present in background technology is limited.
Brief description of the drawings
Fig. 1 is the structural representation of existing laser melting coating head component.
Fig. 2 is the structural representation of laser melting coating head component of the present utility model.
Fig. 3 is structural representation of the present utility model.
Hollow arrow represents the direction of motion of corresponding component in Fig. 1, Fig. 2 and Fig. 3;Solid arc arrow in Fig. 2 and Fig. 3
Head represents the direction of rotation of corresponding component.
Embodiment
Referring to the drawings, the adjustable laser cladding apparatus of cladding track, including laser melting coating head component, laser 10, powder feeding
Device 12 and central controller 11, laser 10 and powder feeder 12 are connected with laser melting coating head component, laser melting coating head component, swash
Light device 10 and powder feeder 12 are connected with central controller 11;
The laser melting coating head component includes cladding head 2, and the cladding head 2, which is arranged on, can drive cladding head 2 along vertical side
To in the vertical adjusting means moved up and down, the top of the cladding head 2 vertically is provided with laser entrance, the cladding head
2 lower section vertically is provided with laser exit;Be provided with lens 4 in cladding head 2, and lens 4 with the cladding head 2 is coaxial sets
Put;
The cladding head 2 is externally provided with powder feeding pipe 3, and powder feeding pipe 3 passes through adjustable angle between powder feeding pipe 3 and cladding head 2
The angle regulator of size is arranged on cladding head 2;The outlet of powder feeding pipe 3 is downward, and the extended line of the axis of powder feeding pipe 2
Intersect with the extended line of the axis of cladding head 2, to ensure the laser beam 1 from laser exit and the outlet from powder feeding pipe 2
Powder meet;
The vertical adjusting means includes the first spindle motor 7 being fixedly installed, and the first of first spindle motor 7 is defeated
Vertically downward, the outer wall of cladding head 2 is provided with the first nut 6 being engaged with first output shaft to shaft, and described first is defeated
Shaft is meshed with first nut 6, to drive cladding head 2 to move up and down;
The angle regulator includes the second spindle motor 9 and the second nut 8, and the powder feeding pipe 3 is close to one exported
The outer wall with cladding head 2 is held to be hinged, the powder feeding pipe 3 is hinged close to one end of import and the outer wall of the second nut 8, described second
Nut 8 is meshed with the second output shaft of the second spindle motor 9, and second output shaft is horizontally disposed;Central controller with
First spindle motor and the second spindle motor are connected, and the first spindle motor and the second spindle motor are stepper motor, center control
Device processed controls the rotating of the first spindle motor and the second spindle motor, is leaned on driving cladding head to move up and down with powder feeding pipe
One end of nearly import moves horizontally that (powder feeding pipe is moved horizontally close to one end of import, can adjust between powder feeding pipe and cladding head
Angle).
Laser 10 is connected by laser transfer passage with laser entrance, and powder feeder 12 passes through powder feeding passage and powder feeding pipe 3
Entrance be connected;
There is in the central controller 11 the signal transmitting device 13 for the power output for being used to adjust laser 10, it is described in
Centre controller 11 is connected by signal transmitting device 13 with laser 10;Having in the central controller 11 is used to adjust powder feeder
The powder feeding controller 15 of 12 powder sending quantity, the central controller 11 is connected by powder feeding controller 15 with powder feeder 12;
Define powder feeding pipe 3 axis and the installation place of powder feeding pipe 3 cladding head 2 outside wall surface tangent line between angle be
Powder feeding angle [alpha];
Having in the central controller 11 is used for the first motor driver 14 of the first spindle motor 7 of control, for controlling
Make the second motor driver 16 of the second spindle motor 9;Also have in the central controller according to the first motor driver 14
Feed back to positional information calculation powder sending quantity, powder feeding angle [alpha] and the required laser power of the first spindle motor 7 of central controller 11
Calculator, the central controller 11 according to calculator export with powder amount information, powder feeding angle information and required laser work(
Rate information drives powder feeder 12, the second spindle motor 9 and laser 10 to act respectively.
A kind of regulation cladding track implemented using the adjustable laser cladding apparatus of cladding track described in the utility model
The method of width, comprises the following steps:
(1) central controller 11 sends control instruction to the first motor driver 14, and the first motor driver 14 is according to next
The first spindle motor 7 is driven to rotate from the control instruction of the rotation direction, velocity of rotation, rotation time of central controller 11, with
Drive cladding head 2 vertically movable, make the defocus in processing plane of laser beam 1, the hot spot 5 of diameter change is produced, so as to adjust
Save cladding track width;
(2) to ensure that cladding effect is constant while cladding track change width, the calculator root of central controller 11
According to the real-time position information of the first spindle motor 7 calculate for adapt to size real-time change hot spot 5 and should match powder sending quantity,
Powder feeding angle [alpha] and laser power, to ensure that the laser power density that hot spot 5 is obtained keeps constant and cladding layer thickness to keep not
Become;
(3) the required laser power delivering control instruction that central controller 11 is exported according to calculator is to signal transmitting
Device 13, laser 10 starts, and signal transmitting device 13 adjusts the power output of laser 10 in real time so that diameter change
The laser power density that hot spot 5 is obtained keeps constant;
(4) powder feeding angle [alpha] delivering control instruction to the second motor that central controller 11 is exported according to calculator drives
Dynamic device 16, the second motor driver 16 adjusts the powder feeding angle [alpha] of powder feeding pipe 3 in real time, powder beam is converged in processing part all the time
Surface;
(5) the powder sending quantity information that central controller 11 is exported according to calculator sends control instruction to powder feeding controller in real time
15, powder feeder 12 starts, and powder feeding controller 15 adjusts the powder sending quantity of powder feeder 12 in real time, to adapt to diameter D size variations
Hot spot, makes the thickness of cladding layer keep constant.
The vertical position of cladding head 2 is adjusted, lens 4 are with the laser exit of cladding head 2 apart from L so as to change process
Middle laser convergence focus is relative to the defocusing amount for processing plane, to realize that convergence hot spot is big at diverse location in same processing plane
The regulation of small (D), then cladding track width change.But because light exit is with processing also changing apart from H for plane, cause
Powder convergent point deviates processing plane makes powder converge in processing plane, it is necessary to adjust powder feeding angle [alpha].
The utility model can both realize the change of cladding track width by changing the spot size of diverse location on track
Change, can also be while spot size be changed according to the change of cladding width adjustment powder conveying capacity and powder feeding angle [alpha], will not
Cause cladding track height fluctuating and cross sectional shape it is unstable, and laser power density keep it is constant so that cladding layer
Thickness keeps constant, it is ensured that cladding effect.
In addition, the lens 4 described in background technology, are arranged on cladding head 2, outside, when high-power laser beam 1, pass through lens
2, when can cause lens 2, upper heat gathers, but causes because of no heat abstractor in cladding head what laser power must be limited to ask
Inscribe, but lens of the present utility model 4 are fixedly installed in cladding head 2, efficiently solve the problem.
Content described in this specification embodiment is only enumerating to the way of realization of utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model is also wrapped
Include those skilled in the art according to the utility model conceive it is conceivable that equivalent technologies mean.
Claims (1)
1. the adjustable laser cladding apparatus of cladding track, it is characterised in that:Including laser melting coating head component, laser, powder feeder
And central controller, laser and powder feeder be connected with laser melting coating head component, laser melting coating head component, laser and powder feeding
Device is connected with central controller;
The laser melting coating head component includes cladding head, and the cladding head, which is arranged on, can drive cladding head to be moved down on vertically
In dynamic vertical adjusting means, the top of the cladding head vertically is provided with laser entrance, the vertical side in cladding head edge
To lower section be provided with laser exit;Lens are provided with cladding head, and lens are coaxially disposed with the cladding head;
The cladding head is externally provided with powder feeding pipe, the angle that powder feeding pipe passes through adjustable corner dimension between powder feeding pipe and cladding head
Adjusting means is arranged on cladding head;The outlet of powder feeding pipe is downward, and in the extended line and cladding head of the axis of powder feeding pipe
The extended line of axis intersects, to ensure that the laser beam from laser exit and the powder of the outlet from powder feeding pipe are met;
The vertical adjusting means includes the first spindle motor being fixedly installed, and the first output shaft of first spindle motor hangs down
Straight downward, the outer wall of cladding head is provided with the first nut being engaged with first output shaft, first output shaft and institute
State the first nut to be meshed, to drive cladding head to move up and down;
The angle regulator includes the second spindle motor and the second nut, the one end and cladding of the powder feeding pipe close to outlet
The outer wall of head is hinged, and the powder feeding pipe is hinged close to one end of import and the outer wall of the second nut, second nut and second
Second output shaft of spindle motor is meshed, and second output shaft is horizontally disposed;Central controller and the first spindle motor
It is connected with the second spindle motor;
Laser is connected by laser transfer passage with laser entrance, and powder feeder passes through powder feeding passage and the entrance phase of powder feeding pipe
Even;
There is the signal transmitting device for the power output for being used to adjust laser, the central controller leads in the central controller
Signal transmitting device is crossed with laser to be connected;There is the powder feeding control for the powder sending quantity for being used to adjust powder feeder in the central controller
Device, the central controller is connected by powder feeding controller with powder feeder;
Angle between the tangent line for the outside wall surface for defining the axis of powder feeding pipe and the cladding head of powder feeding pipe installation place is powder feeding angle
Degree;
Having in the central controller is used for the first motor driver of the first spindle motor of control, for controlling the second leading screw
Second motor driver of motor;Also have in the central controller and central controller is fed back to according to the first motor driver
The positional information calculation powder sending quantity of the first spindle motor, the calculator of powder feeding angle and required laser power, the center control
Device processed according to calculator export driven respectively with powder amount information, powder feeding angle information and required laser power information powder feeder,
Second spindle motor and laser action.
Priority Applications (1)
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CN201720228735.9U CN206614147U (en) | 2017-03-10 | 2017-03-10 | The adjustable laser cladding apparatus of cladding track |
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CN201720228735.9U CN206614147U (en) | 2017-03-10 | 2017-03-10 | The adjustable laser cladding apparatus of cladding track |
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ID=60232318
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CN201720228735.9U Withdrawn - After Issue CN206614147U (en) | 2017-03-10 | 2017-03-10 | The adjustable laser cladding apparatus of cladding track |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106862769A (en) * | 2017-03-10 | 2017-06-20 | 浙江工业大学 | The method of the adjustable laser cladding apparatus of cladding track and regulation cladding track width |
CN109207994A (en) * | 2018-09-21 | 2019-01-15 | 湖南工业大学 | Three sections of reciprocating laser cladding apparatus of one kind and method |
CN110863198A (en) * | 2019-12-16 | 2020-03-06 | 芜湖点金机电科技有限公司 | Metal powder feeding device for part repair based on laser cladding technology |
-
2017
- 2017-03-10 CN CN201720228735.9U patent/CN206614147U/en not_active Withdrawn - After Issue
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106862769A (en) * | 2017-03-10 | 2017-06-20 | 浙江工业大学 | The method of the adjustable laser cladding apparatus of cladding track and regulation cladding track width |
CN106862769B (en) * | 2017-03-10 | 2018-11-13 | 浙江工业大学 | The method of the adjustable laser cladding apparatus of cladding track and adjusting cladding track width |
CN109207994A (en) * | 2018-09-21 | 2019-01-15 | 湖南工业大学 | Three sections of reciprocating laser cladding apparatus of one kind and method |
CN110863198A (en) * | 2019-12-16 | 2020-03-06 | 芜湖点金机电科技有限公司 | Metal powder feeding device for part repair based on laser cladding technology |
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Legal Events
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GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20171107 Effective date of abandoning: 20181113 |
|
AV01 | Patent right actively abandoned |