CN107552955A - A kind of method and laser welding apparatus of laser welding opaque-plastic product - Google Patents
A kind of method and laser welding apparatus of laser welding opaque-plastic product Download PDFInfo
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- CN107552955A CN107552955A CN201710944031.6A CN201710944031A CN107552955A CN 107552955 A CN107552955 A CN 107552955A CN 201710944031 A CN201710944031 A CN 201710944031A CN 107552955 A CN107552955 A CN 107552955A
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- plastic module
- module
- contact surface
- plastic
- laser welding
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- 239000004033 plastic Substances 0.000 title claims abstract description 212
- 229920003023 plastic Polymers 0.000 title claims abstract description 212
- 238000003466 welding Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004093 laser heating Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004023 plastic welding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 230000035882 stress Effects 0.000 abstract description 4
- 230000008646 thermal stress Effects 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of method and laser welding apparatus of laser welding opaque-plastic product, by carrying out non-contact type heating respectively to upper plastic module and lower plastic module, again by the bonding of upper plastic module and lower plastic module, the laser welding to light tight product is realized.Laser does not contact with product, resin less degradation, and it is few to produce chip.This method technique is simple, and uniformity is good, easily realizes automated production.Any additive, which need not be added, to be polluted；Mechanical stress and thermal stress are not produced, improves the quality of product；Do not influenceed by the translucency of upper layer of material, product structure and color diversified can select, and improve the appearance property of product.
Description
Technical field
The present invention relates to laser welding field, the particularly a kind of method and Laser Welding of laser welding opaque-plastic product
Connect equipment.
Background technology
Because the advantages of laser plastic welding is resin less degradation, generation chip is few, and welding process is untouchable to produce
Raw pollution, laser welding are small compared to mechanical stress and thermal stress caused by other connected modes, so plastics welding now is
The mode of widely used laser welding.The laser welding of thermoplastic uses transmission welding principle at present, i.e., to be welded
Two parts are overlapping to be put together, and one of two parts can pass through laser and another part must absorb laser, such laser
Can reaches the contact surface with two layer materials through the first layer material, and heat is then produced at contact surface, so as to melt contact
Plane materiel material, connection is completed after cooling.Just because of conventional plastics laser welding needs the first layer material to have certain light transmittance, institute
Many limitations are connected to the plastics Laser Welding of routine, such as：1. limiting the color of upper layer of material, light color is usually applicable only to
Material；2. limiting the structure of upper layer of material, there can not be fillet corner angle etc. to influence light transmissive structure at welding printing opacity；3.
The thickness of upper layer of material is limited, the excessive light transmittance of material thickness can reduce.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of method and laser of laser welding opaque-plastic product
Welding equipment, opaque-plastic product can be welded, solve the confinement problems of plastics laser welding.
The technical solution adopted for the present invention to solve the technical problems is：A kind of laser welding opaque-plastic product is provided
Method, the opaque-plastic product include cooperate upper plastic module and lower plastic module, comprise the following steps：
S1：Upper plastic module and lower plastic module are clamped respectively；
S2：Laser heating is carried out to the contact surface of upper plastic module, while laser is carried out to the contact surface of lower plastic module
Heating；
S3：After the contact surface of upper plastic module and the contact surface of lower plastic module melt, quickly by upper plastic module
The contact surface of contact surface and lower plastic module is aligned and pressed；
S4：To upper plastic module and lower plastic module pressurize, upper plastic module and lower plastic module are bonded in one after cooling
Rise, complete the welding of plastic product.
Further, the contact of the upper plastic module is face-down, and the contact of the lower plastic module is face-up.
Further, the contact surface of the contact surface of the upper plastic module and lower plastic module shifts to install.
Further, the contact surface of the contact surface of the upper plastic module and lower plastic module is ring surface.
Further, the specific following steps of the step 3：It is quick mobile after the contact surface fusing of the upper plastic module
Aligned to the top of lower plastic module, and with lower plastic module；The lower plastic module moves up and upper plastic module
Pressing.
Further, the specific following steps of the step 3：It is quick mobile after the contact surface fusing of the upper plastic module
Aligned to the top of lower plastic module, and with lower plastic module；The upper plastic module moves down and lower plastic module
Pressing.
Further, the specific following steps of the step 3：It is quick mobile after the contact surface fusing of the lower plastic module
Aligned to the lower section of upper plastic module, and with upper plastic module；The lower plastic module moves up and upper plastic module
Pressing.
Further, the specific following steps of the step 3：It is quick mobile after the contact surface fusing of the lower plastic module
Aligned to the lower section of upper plastic module, and with upper plastic module；The upper plastic module moves down and lower plastic module
Pressing.
The present invention also provides a kind of laser welding apparatus, including：
Laser and two plumb joints, the laser are connected with two plumb joint light paths, and the laser includes two
Plumb joint, laser heating is carried out to the contact surface of upper plastic module and lower plastic module respectively；
Upper clamp mechanism, the upper clamp mechanism clamp upper plastic module and plastic module can be driven to move；
Lower clamp mechanism, the lower clamp mechanism clamp lower plastic module and lower plastic module can be driven to move；
Control unit, described control unit control two plumb joints to be contacted respectively to upper plastic module with lower plastic module
Face carries out laser heating, then by controlling the upper clamp mechanism and lower clamp mechanism to move the contact surface for making upper plastic module and lower modeling
The contact surface of material module is aligned and pressed.
Relative to prior art, a kind of method of laser welding opaque-plastic product provided by the invention, by upper
Plastic module and lower plastic module carry out non-contact type heating, then the bonding by upper plastic module and lower plastic module respectively, real
Now to the laser welding of light tight product.Laser does not contact with product, resin less degradation, and it is few to produce chip.The letter of this method technique
Single, uniformity is good, easily realizes automated production.Any additive, which need not be added, to be polluted；Do not produce mechanical stress
And thermal stress, improve the quality of product；Do not influenceed by the translucency of upper layer of material, product structure and color diversified can be selected
Select, improve the appearance property of product.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the upper plastic module of plastic product of the present invention and the structural representation of lower plastic module；
The method schematic diagram of laser welding opaque-plastic product provided by the invention in Fig. 2；
Fig. 3 is the schematic perspective view of plastic product after bonding.
Embodiment
In conjunction with accompanying drawing, presently preferred embodiments of the present invention is elaborated.
As shown in figure 1, the present invention provides a kind of method of laser welding opaque-plastic product, the opaque-plastic production
Product 10 include the upper plastic module 11 to cooperate and lower plastic module 12, comprise the following steps：
S1：Upper plastic module 11 and lower plastic module 12 are clamped respectively；
S2：Laser heating is carried out to the contact surface of upper plastic module 11, while the contact surface of lower plastic module 12 is carried out
Laser heats (as shown in Figure 2)；
S3：After the contact surface of upper plastic module 11 and the contact surface of lower plastic module 12 melt, quickly by upper the modern designs of plastics
The contact surface of the contact surface of block 11 and lower plastic module 12 is aligned and pressed；
S4：To upper plastic module 11 and the lower pressurize of plastic module 12, upper plastic module 11 and lower plastic module 12 after cooling
It is bonded together, completes the welding (as shown in Figure 3) of plastic product 10.Laser welding opaque-plastic product provided by the invention
Method, by carrying out non-contact type heating respectively to upper plastic module 11 and lower plastic module 12, then by upper plastic module 11
With the bonding of lower plastic module 12, the laser welding to light tight product 10 is realized.
In the present embodiment, the contact of upper plastic module 11 is face-down, and the contact of lower plastic module 12 is face-up.So have
After the contact surface of contact surface and lower plastic module 12 beneficial to upper plastic module 11 melts, quickly by the contact of upper plastic module 11
The contact surface of face and lower plastic module 12 is aligned and pressed.In addition, the contact surface of upper plastic module 11 and lower plastic module 12
Contact surface shifts to install, and is so easy to laser to synchronize heating to two contact surfaces, avoids two lasers from interfering.
Specifically, the contact surface of the contact surface of upper plastic module 11 and lower plastic module 12 is ring surface, and laser is ring
Shape laser beam.The specific following steps of step 3：After the contact surface fusing of upper plastic module 11, lower plastic module 12 is moved quickly into
Top, and aligned with lower plastic module 12；Then descend plastic module 12 to move up to press with upper plastic module 11.
During actual processing, upper plastic module 11 and lower plastic module 12 can be clamped by two manipulators, in matching somebody with somebody for servicing unit
Under conjunction, the accurate movement of plastic module 11 and lower plastic module 12 in realization.
Certainly, the move mode of upper plastic module 11 and lower plastic module 12 not only above-mentioned one kind, it can also be other
Move mode.
In other embodiments, the specific following steps of step 3：It is quick mobile after the contact surface fusing of upper plastic module 11
Aligned to the top of lower plastic module 12, and with lower plastic module 12；Upper plastic module 11 moves down and lower the modern designs of plastics
Block 12 presses.The bonding of plastic module 11 and lower plastic module 12 can also so be realized.
In other embodiments, the specific following steps of step 3：It is quick mobile after the contact surface fusing of lower plastic module 12
Aligned to the lower section of upper plastic module 11, and with upper plastic module 11；Lower plastic module 12 moves up and upper the modern designs of plastics
Block 11 presses.The bonding of plastic module 11 and lower plastic module 12 can also so be realized.
In other embodiments, the specific following steps of step 3：It is quick mobile after the contact surface fusing of lower plastic module 12
Aligned to the lower section of upper plastic module 11, and with upper plastic module 11；Upper plastic module 11 moves down and lower the modern designs of plastics
Block 12 presses.The bonding of plastic module 11 and lower plastic module 12 can also equally be realized.
The present invention also provides a kind of laser welding apparatus, including：
Laser and two plumb joints 1, the laser are connected with two plumb joint light paths, and two plumb joints 1 are right respectively
The contact surface of upper plastic module 11 and lower plastic module 12 carries out laser heating；
Upper clamp mechanism (not shown), upper clamp mechanism clamp upper plastic module 11 and plastic module 11 can be driven to move；
Lower clamp mechanism, lower clamp mechanism clamp lower plastic module 12 and lower plastic module 12 can be driven to move；
Control unit, control unit control two plumb joints 1 connecing to upper plastic module 11 and lower plastic module 12 respectively
Contacting surface carries out laser heating, then by controlling upper clamp mechanism and the movement of lower clamp mechanism to make the contact surface of upper plastic module 11 and lower modeling
The contact surface of material module 12 is aligned and pressed.
Relative to prior art, a kind of method of laser welding opaque-plastic product provided by the invention, by upper
Plastic module and lower plastic module carry out non-contact type heating, then the bonding by upper plastic module and lower plastic module respectively, real
Now to the laser welding of light tight product.Laser does not contact with product, resin less degradation, and it is few to produce chip.The letter of this method technique
Single, uniformity is good, easily realizes automated production.Any additive, which need not be added, to be polluted；Do not produce mechanical stress
And thermal stress, improve the quality of product；Do not influenceed by the translucency of upper layer of material, product structure and color diversified can be selected
Select, improve the appearance property of product.
It should be appreciated that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, to ability
For field technique personnel, the technical scheme described in above-described embodiment can be modified, or it is special to which part technology
Sign carries out equivalent substitution；And all such modifications and replacement, it should all belong to the protection domains of appended claims of the present invention.
Claims (9)
1. a kind of method of laser welding opaque-plastic product, the opaque-plastic product includes the upper plastics to cooperate
Module and lower plastic module, it is characterised in that comprise the following steps：
S1：Upper plastic module and lower plastic module are clamped respectively；
S2：Laser heating is carried out to the contact surface of upper plastic module, while laser heating is carried out to the contact surface of lower plastic module；
S3：After the contact surface of upper plastic module and the contact surface of lower plastic module melt, quickly by the contact of upper plastic module
The contact surface of face and lower plastic module is aligned and pressed；
S4：To upper plastic module and lower plastic module pressurize, upper plastic module and lower plastic module are bonded together after cooling, complete
Into the welding of plastic product.
2. the method for laser welding opaque-plastic product according to claim 1, it is characterised in that the upper the modern designs of plastics
The contact of block is face-down, and the contact of the lower plastic module is face-up.
3. the method for laser welding opaque-plastic product according to claim 2, it is characterised in that the upper the modern designs of plastics
The contact surface of the contact surface of block and lower plastic module shifts to install.
4. the method for laser welding opaque-plastic product according to claim 3, it is characterised in that the upper the modern designs of plastics
The contact surface of the contact surface of block and lower plastic module is ring surface.
5. the method for laser welding opaque-plastic product as claimed in any of claims 1 to 4, its feature exist
In the specific following steps of step 3：After the contact surface fusing of the upper plastic module, lower plastic module is moved quickly into
Top, and aligned with lower plastic module；The lower plastic module moves up to be pressed with upper plastic module.
6. the method for laser welding opaque-plastic product as claimed in any of claims 1 to 4, its feature exist
In the specific following steps of step 3：After the contact surface fusing of the upper plastic module, lower plastic module is moved quickly into
Top, and aligned with lower plastic module；The upper plastic module moves down to be pressed with lower plastic module.
7. the method for laser welding opaque-plastic product as claimed in any of claims 1 to 4, its feature exist
In the specific following steps of step 3：After the contact surface fusing of the lower plastic module, plastic module is moved quickly into
Lower section, and aligned with upper plastic module；The lower plastic module moves up to be pressed with upper plastic module.
8. the method for laser welding opaque-plastic product as claimed in any of claims 1 to 4, its feature exist
In the specific following steps of step 3：After the contact surface fusing of the lower plastic module, plastic module is moved quickly into
Lower section, and aligned with upper plastic module；The upper plastic module moves down to be pressed with lower plastic module.
A kind of 9. laser welding apparatus, it is characterised in that including：
Laser and two plumb joints, the laser are connected with two plumb joint light paths, and described two plumb joints are respectively to upper
The contact surface of plastic module and lower plastic module carries out laser heating；
Upper clamp mechanism, the upper clamp mechanism clamp upper plastic module and plastic module can be driven to move；
Lower clamp mechanism, the lower clamp mechanism clamp lower plastic module and lower plastic module can be driven to move；
Control unit, described control unit control two plumb joints to enter respectively to the contact surface of upper plastic module and lower plastic module
Row laser heats, then by controlling the upper clamp mechanism and lower clamp mechanism to move the contact surface for making upper plastic module and lower the modern designs of plastics
The contact surface of block is aligned and pressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944031.6A CN107552955A (en) | 2017-09-30 | 2017-09-30 | A kind of method and laser welding apparatus of laser welding opaque-plastic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944031.6A CN107552955A (en) | 2017-09-30 | 2017-09-30 | A kind of method and laser welding apparatus of laser welding opaque-plastic product |
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| Publication Number | Publication Date |
|---|---|
| CN107552955A true CN107552955A (en) | 2018-01-09 |
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|---|---|---|---|
| CN201710944031.6A Pending CN107552955A (en) | 2017-09-30 | 2017-09-30 | A kind of method and laser welding apparatus of laser welding opaque-plastic product |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035045A (en) * | 1990-09-10 | 1991-07-30 | Globe-Union Inc. | Method of joining bipolar battery frames |
| CN1951674A (en) * | 2005-10-19 | 2007-04-25 | 丰田自动车株式会社 | Method and apparatus for laser welding thermoplastic resin members |
| CN102205640A (en) * | 2010-02-02 | 2011-10-05 | Zf腓德烈斯哈芬股份公司 | Method for fixing component in casing and assembly hereof |
| DE102011107537A1 (en) * | 2010-07-27 | 2012-02-02 | Marquardt Gmbh | Method for welding two parts of housing element with joint surface using laser radiation in region of motor car, involves pressing parts at joint surface opposite to each other until joint surface is cooled |
-
2017
- 2017-09-30 CN CN201710944031.6A patent/CN107552955A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035045A (en) * | 1990-09-10 | 1991-07-30 | Globe-Union Inc. | Method of joining bipolar battery frames |
| CN1951674A (en) * | 2005-10-19 | 2007-04-25 | 丰田自动车株式会社 | Method and apparatus for laser welding thermoplastic resin members |
| CN102205640A (en) * | 2010-02-02 | 2011-10-05 | Zf腓德烈斯哈芬股份公司 | Method for fixing component in casing and assembly hereof |
| DE102011107537A1 (en) * | 2010-07-27 | 2012-02-02 | Marquardt Gmbh | Method for welding two parts of housing element with joint surface using laser radiation in region of motor car, involves pressing parts at joint surface opposite to each other until joint surface is cooled |
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Application publication date: 20180109 |
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