CN206824817U - Laser welding head - Google Patents
Laser welding head Download PDFInfo
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- CN206824817U CN206824817U CN201720595438.8U CN201720595438U CN206824817U CN 206824817 U CN206824817 U CN 206824817U CN 201720595438 U CN201720595438 U CN 201720595438U CN 206824817 U CN206824817 U CN 206824817U
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- collimation
- laser welding
- welding head
- microscope base
- lens
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Abstract
It the utility model is related to a kind of laser welding head.Laser welding head includes fibre-optical splice, collimator assembly, reflection subassembly, focus pack, protection mirror assembly and the air blowing component being sequentially connected.Collimator assembly includes collimation microscope base and collimation lens, the one end for collimating microscope base are connected with fibre-optical splice, and the other end is connected with reflection subassembly.Collimate and offer the first mounting hole in the axial direction of microscope base, collimation lens are placed in the first mounting hole, and can be relative to axial movement of the collimation microscope base along collimation microscope base, with closer or far from the light source being connected with fibre-optical splice.When the distance between collimation lens and light source is less than collimation focal length, the area of the hot spot of workpiece surface can increase, and when the distance between collimation lens and light source is more than collimation focal length, the area of the hot spot of workpiece surface can reduce.Therefore, the size that the laser welding head can adjust hot spot reduces the production cost of laser welding head to meet different welding requirements.
Description
Technical field
Laser welding technology field is the utility model is related to, more particularly to a kind of laser welding head.
Background technology
With flourishing for laser processing technology, the demand of welding thicker plate material is more and more, and traditional Laser Welding
Joint uses integral structure more, and the size formed in the hot spot of workpiece surface is certain value.And the sheet material of different-thickness is corresponding
Different size of hot spot, when welding the sheet material of different-thickness, it is necessary to change whole laser welding head.Not only bother, it is also big
The big production cost for adding laser welding head.
Utility model content
Based on this, it is necessary to for traditional laser welding head production cost it is higher the problem of, there is provided a kind of spot size
Adjustable laser welding head.
A kind of laser welding head, including be sequentially connected fibre-optical splice, collimator assembly, reflection subassembly, focus pack, protection
Mirror assembly and air blowing component, the collimator assembly include collimation microscope base and collimation lens, one end of the collimation microscope base with it is described
Fibre-optical splice is connected, and the other end is connected with the reflection subassembly, and the first mounting hole, institute are offered in the axial direction of the collimation microscope base
State collimation lens to be placed in first mounting hole, and can be moved relative to axial direction of the collimation microscope base along the collimation microscope base
It is dynamic.
In one of the embodiments, the collimator assembly also includes slide cartridge and cam, in the circumference of the collimation microscope base
The first adjustment hole is offered, first adjustment hole connects with first mounting hole, and the slide cartridge is arranged in first peace
Hole is filled, the slide cartridge can be set in the axial direction of the slide cartridge relative to axial movement of the collimation microscope base along the collimation microscope base
There is the second mounting hole, the collimation lens offer groove in second mounting hole in the circumference of the slide cartridge, described
Groove is right against first adjustment hole, and the cam is arranged in first adjustment hole and the groove, the cam energy phase
For the collimation microscope base rotation, and during cam rotation, the cam can drive the slide cartridge relative to the collimating mirror
Seat is mobile.
In one of the embodiments, the cam includes adjustment portion and the boss located at described adjustment portion one end, described
Adjustment portion is arranged in first adjustment hole, and the boss is arranged in the groove, the axis of the adjustment portion and the boss
Diameter parallel, during cam rotation, the boss can drive the slide cartridge relative to the collimation microscope base movement.
In one of the embodiments, projection and the end of the adjustment portion of the boss on the end face of the adjustment portion
Face inscribe, and the distance between the axis of the axis of the adjustment portion and the boss is 3mm.
In one of the embodiments, the collimator assembly also includes locking member, is opened up in the circumference of the collimation microscope base
There is the second adjustment hole, second adjustment hole is connected with first adjustment hole, and annular is offered in the circumference of the adjustment portion
Groove, the annular groove are right against second adjustment hole, and the locking member is arranged in second adjustment hole and the annular groove,
And it can be abutted with the bottom wall of the annular groove.
In one of the embodiments, the collimation lens include first to be arranged successively along the axial direction of the collimation microscope base
Lens, spacer ring and the second lens.
In one of the embodiments, first lens are biconvex lens, and second lens are meniscus lens.
In one of the embodiments, the collimator assembly is detachable with the fibre-optical splice and the reflection subassembly respectively
Connection, the focus pack respectively with the reflection subassembly and it is described protection mirror assembly be detachably connected, the air blowing component with
The protection mirror assembly is detachably connected.
In one of the embodiments, the laser welding head also includes water-cooled block, and the water-cooled block is provided with two, one
The water-cooled block is connected with the collimator assembly, and another described water-cooled block is connected with the reflection subassembly.
In one of the embodiments, the laser welding head also includes visual organ, the visual organ and the reflection group
Part connects, and for observing the processing situation of workpiece.
Above-mentioned laser welding head, collimation lens can relative to axial movement of the collimation microscope base along collimation microscope base with close or
The remote light source being connected with fibre-optical splice.When the distance between collimation lens and light source is less than collimation focal length, the light of workpiece surface
The area of spot can increase, when the distance between collimation lens and light source is more than collimation focal length, the area meeting of the hot spot of workpiece surface
Reduce.Therefore, the size that the laser welding head can adjust hot spot reduces laser welding head to meet different welding requirements
Production cost.
Brief description of the drawings
Fig. 1 is the structural representation of the laser welding head of an embodiment；
Fig. 2 is the structural representation of Optical fiber plug；
Fig. 3 be Fig. 1 shown in laser welding head in collimator assembly structural representation；
Fig. 4 is the sectional view of the collimator assembly shown in Fig. 3；
Fig. 5 is the structural representation of the collimator assembly cam shown in Fig. 3；
Fig. 6 is the front view of the cam shown in Fig. 5；
Fig. 7 is the partial structural diagram of the collimator assembly shown in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described further to laser welding head.
Fig. 1 and Fig. 2 is refer to, the laser welding head 10 of an embodiment includes fibre-optical splice 100, the collimation being sequentially connected
Component 200, reflection subassembly 300, focus pack 400, protection mirror assembly 500 and air blowing component 600, wherein, fibre-optical splice 100 is
QBH joints, for connecting Optical fiber plug 20, to provide light source for laser welding head 10.Collimator assembly 200 is used to send light source
Divergent beams be changed into collimated light beam, the direction of the launch of collimated light beam and the diameter parallel of laser welding head 10.Reflection subassembly 300
Interior to be provided with reflecting optics, the angle between the axis of reflecting optics and the axis of laser welding head 10 is 45 °, is set on reflecting optics
Have anti-reflection film, therefore, when collimated light beam is mapped on reflecting optics, only few part can be reflected, collimated light beam it is big
Part can be directed through reflecting optics and be mapped on focus pack 400.Focus pack 400 has the function that optically focused, can gather parallel
Light beam, and form a certain size hot spot in workpiece surface.Protect and protection eyeglass is provided with mirror assembly 500, main function is to protect
Protect focus pack 400.Air blowing component 600 is except that can protect protection mirror assembly 500, additionally it is possible to ensure the welding effect of workpiece.
It is noted that collimator assembly 200 is detachably connected with fibre-optical splice 100 and reflection subassembly 300 respectively, focus on
Component 400 is detachably connected with reflection subassembly 300 and protection mirror assembly 500 respectively, air blowing component 600 and protection mirror assembly 500
It is detachably connected, that is, fibre-optical splice 100, collimator assembly 200, reflection subassembly 300, focus pack 400, protection mirror assembly 500
And air blowing component 600 is detachable.When a certain component goes wrong, corresponding component can be only changed, and it is whole without replacing
Individual laser welding head 10, not only facilitates, moreover it is possible to save processing cost.Similarly, if desired change collimation focal length, focus on focal length or
Blowing method, original component can be directly replaced with satisfactory component.
In the present embodiment, laser welding head 10 also includes visual organ 700, and visual organ 700 connects with reflection subassembly 300
Connect, it is seen that light, through protection mirror assembly 500 and focus pack 400, visual organ 700 is reflexed to through reflecting optics by welding region
It is interior, then be imaged on by visual organ 700 on externally connected with display screen, staff can be by observing display screen, to instruct welding to operate.
At work, collimator assembly 200 easily generates heat laser welding head 10 with reflection subassembly 300, in order to cool down collimation group
Part 200 and reflection subassembly 300, laser welding head are also provided with water-cooled block 800, and water-cooled block 800 is provided with two altogether, a water-cooled block
800 are connected with collimator assembly 200, and another water-cooled block 800 is connected with reflection subassembly 300.In other embodiments, water-cooled block
800 can also set three, and the 3rd water-cooled block 800 is used to cool down focus pack 400.Or water-cooled block can also only be set
One, it is connected with collimator assembly 200, reflection subassembly 300 or focus pack 400, other two component can be set by inside
Water-cooling channel is cooled down.
Traditional laser welding head uses integral structure more, and the size formed in the hot spot of workpiece surface is certain value.
And the sheet material of different-thickness corresponds to different size of hot spot, when welding the sheet material of different-thickness, it is necessary to change whole laser
Plumb joint.Not only bother, also greatly increases the production cost of laser welding head.And in the present embodiment, laser welding head
10 by way of changing component in addition to it can change spot size, can also be by way of adjusting collimator assembly 200
To change spot size.
Specifically, Fig. 3 to Fig. 5 is refer to, collimator assembly 200 includes collimation microscope base 210 and collimation lens 220, collimating mirror
One end of seat 210 is connected with fibre-optical splice 100, and the other end is connected with reflection subassembly 300.Collimate and opened up in the axial direction of microscope base 210
There is the first mounting hole 212, collimation lens 220 are placed in the first mounting hole 212, and can be relative to collimation microscope base 210 along collimating mirror
The axial movement of seat 210 is with closer or far from the Optical fiber plug 20 being connected with fibre-optical splice 100.When collimation lens 220 and optical fiber
When distance between plug 20 is less than collimation focal length, the area of the hot spot of workpiece surface can increase, when collimation lens 220 are inserted with optical fiber
When distance between first 20 is more than collimation focal length, the area of the hot spot of workpiece surface can reduce.Therefore, the laser welding head 10 can
The size of hot spot is adjusted to meet different welding requirements, reduces the production cost of laser welding head 10.
In the present embodiment, collimation lens 220 include the first lens 222, the lens 226 of spacer ring 224 and second, first
Arrange successively the axial direction of lens 222, the lens 226 of spacer ring 224 and second along collimation microscope base 210.Wherein, the first lens 222 are
Biconvex lens, the second lens 226 are meniscus lens.
Collimator assembly 200 also includes slide cartridge 230, and slide cartridge 230 is arranged in the first mounting hole 212, and slide cartridge 230 can be relative to standard
Axial movement of the straight microscope base 210 along collimation microscope base 210.The axial direction of slide cartridge 230 is provided with the second mounting hole 232, collimation lens 220
In the second mounting hole 232, so as to axial movement of the slide cartridge 230 along collimation microscope base 210.
Collimator assembly 200 also includes cam 240, collimates and the first adjustment hole 214 is offered in the circumference of microscope base 210, and first
Adjustment hole 214 connects with the first mounting hole 212.Groove 234 is offered in the circumference of slide cartridge 230, groove 234 is right against the first tune
Knothole 214, cam 240 are arranged in the first adjustment hole 214 and groove 234.Cam 240 can rotate relative to collimation microscope base 210, and
When cam 240 rotates, cam 240 can drive slide cartridge 230 to be moved relative to collimation microscope base 210, and then drive the edge of collimation lens 220
Collimate the axial movement of microscope base 210.
Specifically, cam 240 includes adjustment portion 242 and the boss 244 located at the one end of adjustment portion 242, and adjustment portion 242 is worn
In the first adjustment hole 214, boss 244 is arranged in groove 224, the axis of adjustment portion 242 and the diameter parallel of boss 244, that is,
Boss 244 deviates from adjustment portion 242.Cam 240 can rotate relative to collimation microscope base 210, and during the rotation of cam 240, boss 244
Slide cartridge 220 can be driven to be moved relative to collimation microscope base 210.The one end of adjustment portion 242 away from boss 244 is provided with regulating tank 246, work
The instrument insertion inward turning rotating cam 240 of regulating tank 246 can be utilized by making personnel.
Observation visual angle is shown with Fig. 3, when collimation lens 220 move up, between collimation lens 220 and Optical fiber plug 20
Distance can be less than collimation focal length, the area of the hot spot of workpiece surface can increase；When collimation lens 220 move down, collimation
Distance between eyeglass 220 and Optical fiber plug 20 can be more than collimation focal length, and the area of the hot spot of workpiece surface can reduce.Therefore, revolve
Rotating cam 240, position of the collimation lens 220 relative to collimation microscope base 210 can be changed, so as to change the light of workpiece surface
The size of spot.So, the laser welding head equipped with the collimator assembly 200 just disclosure satisfy that a variety of welding requirements, further reduce
The production cost of laser welding head.
Further, as shown in FIG. 6 and 7, groove 234 includes the first side wall 236 and the second sidewall 238 being oppositely arranged,
The first side wall 236 is axially in parallel to the direction of second sidewall 238 and slide cartridge 230, and the first side wall 236 and second sidewall 238 are equal
Abutted with the side wall of boss 244.
Moreover, projection of the boss 244 on the end face of adjustment portion 242 and the end face inscribe of adjustment portion 242, and adjustment portion
Distance between 242 axis and the axis of boss 244 is 3mm.Therefore, when rotating cam 240, collimation lens 220 can be to moving up
Dynamic 0-3mm, can also move down 0-3mm.Certainly, in other embodiments, boss 244 is on the end face of adjustment portion 242
Projection can also only a fraction fall in the end face of adjustment portion 242, and the axis of the axis of adjustment portion 242 and boss 244
Between distance can also be other values, to obtain different adjustable ranges.
It refer to Fig. 3 and Fig. 7, collimator assembly 200 also includes locking member 250, collimates and the is offered in the circumference of microscope base 210
Two adjustment holes 216, the second adjustment hole 216 connect with the first adjustment hole 214.Annular groove is offered in the circumference of adjustment portion 242
248, annular groove 248 is right against the second adjustment hole 216, and locking member 250 is arranged in the second adjustment hole 216 and annular groove 248, and energy
Abutted with the bottom wall of annular groove 248.
In the present embodiment, the number of the second adjustment hole 216 is two, is oppositely arranged on collimation microscope base 210, locking
The number of part 250 is two, and a locking member 250 is arranged in second adjustment hole 216.Regulating collimation lens 220
Position after, staff can screw locking member 250 by instrument so that two locking members 250 tightly clamp adjustment portion
242, prevent cam 240 from turning round.It is appreciated that in other embodiments, can also only set a locking member 250, lock
Adjustment portion 242 is tightly against on the first adjustment hole 214 inwall relative with locking member 250 by part 250.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
- A kind of 1. laser welding head, it is characterised in that including be sequentially connected fibre-optical splice, collimator assembly, reflection subassembly, focusing Component, protection mirror assembly and air blowing component, the collimator assembly includes collimation microscope base and collimation lens, described to collimate the one of microscope base End is connected with the fibre-optical splice, and the other end is connected with the reflection subassembly, and first is offered in the axial direction of the collimation microscope base Mounting hole, the collimation lens are placed in first mounting hole, and can be relative to the microscope base that collimates along the collimating mirror The axial movement of seat.
- 2. laser welding head according to claim 1, it is characterised in that the collimator assembly also includes slide cartridge and cam, The first adjustment hole is offered in the circumference of the collimation microscope base, first adjustment hole connects with first mounting hole, described Slide cartridge is arranged in first mounting hole, and the slide cartridge can move relative to axial direction of the collimation microscope base along the collimation microscope base Dynamic, the axial direction of the slide cartridge is provided with the second mounting hole, and the collimation lens are located in second mounting hole, the slide cartridge Offer groove in circumference, the groove is right against first adjustment hole, the cam be arranged in first adjustment hole and The groove, the cam can be relative to the collimation microscope base rotation, and during cam rotation, the cam can drive described Slide cartridge is relative to the collimation microscope base movement.
- 3. laser welding head according to claim 2, it is characterised in that the cam includes adjustment portion and located at the tune The boss of section portion one end, the adjustment portion are arranged in first adjustment hole, and the boss is arranged in the groove, the regulation The diameter parallel of the axis in portion and the boss, when the cam rotates, the boss can drive the slide cartridge relative to described Collimate microscope base movement.
- 4. laser welding head according to claim 3, it is characterised in that the boss is on the end face of the adjustment portion Projection and the end face inscribe of the adjustment portion, and the distance between the axis of the axis of the adjustment portion and the boss is 3mm.
- 5. laser welding head according to claim 3, it is characterised in that the collimator assembly also includes locking member, described Collimate and offer the second adjustment hole in the circumference of microscope base, second adjustment hole connects with first adjustment hole, the regulation Annular groove is offered in the circumference in portion, the annular groove is right against second adjustment hole, and the locking member is arranged in described Two adjustment holes and the annular groove, and can be abutted with the bottom wall of the annular groove.
- 6. laser welding head according to claim 1, it is characterised in that the collimation lens are included along the collimation microscope base Axial direction the first lens, spacer ring and the second lens arranged successively.
- 7. laser welding head according to claim 6, it is characterised in that first lens are biconvex lens, described Two lens are meniscus lens.
- 8. laser welding head according to claim 1, it is characterised in that the collimator assembly respectively with the fibre-optical splice And the reflection subassembly is detachably connected, the focus pack is detachable with the reflection subassembly and the protection mirror assembly respectively Connection, the air blowing component are detachably connected with the protection mirror assembly.
- 9. laser welding head according to claim 1, it is characterised in that the laser welding head also includes water-cooled block, institute Water-cooled block is stated provided with two, a water-cooled block is connected with the collimator assembly, another described water-cooled block and the reflection Component connects.
- 10. laser welding head according to claim 1, it is characterised in that the laser welding head also includes visual organ, institute Visual organ is stated to be connected with the reflection subassembly, and for observing the processing situation of workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595438.8U CN206824817U (en) | 2017-05-25 | 2017-05-25 | Laser welding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595438.8U CN206824817U (en) | 2017-05-25 | 2017-05-25 | Laser welding head |
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| Publication Number | Publication Date |
|---|---|
| CN206824817U true CN206824817U (en) | 2018-01-02 |
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ID=60772938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720595438.8U Active CN206824817U (en) | 2017-05-25 | 2017-05-25 | Laser welding head |
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| CN (1) | CN206824817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848555A (en) * | 2019-03-20 | 2019-06-07 | 苏州市镭极激光技术有限公司 | Portable laser welder |
| CN111673272A (en) * | 2020-05-21 | 2020-09-18 | 哈尔滨工业大学 | Swing laser-ultrasonic composite welding method |
| CN116009267A (en) * | 2022-12-09 | 2023-04-25 | 西安炬光科技股份有限公司 | Light spot shaping device and laser processing equipment |
-
2017
- 2017-05-25 CN CN201720595438.8U patent/CN206824817U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848555A (en) * | 2019-03-20 | 2019-06-07 | 苏州市镭极激光技术有限公司 | Portable laser welder |
| CN109848555B (en) * | 2019-03-20 | 2023-09-22 | 苏州市镭极激光技术有限公司 | Portable laser welding device |
| CN111673272A (en) * | 2020-05-21 | 2020-09-18 | 哈尔滨工业大学 | Swing laser-ultrasonic composite welding method |
| CN111673272B (en) * | 2020-05-21 | 2022-03-01 | 哈尔滨工业大学 | Swing laser-ultrasonic composite welding method |
| CN116009267A (en) * | 2022-12-09 | 2023-04-25 | 西安炬光科技股份有限公司 | Light spot shaping device and laser processing equipment |
| CN116009267B (en) * | 2022-12-09 | 2024-04-26 | 西安炬光科技股份有限公司 | Light spot shaping device and laser processing equipment |
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