CN103447701A - Laser high-frequency composite welding device and welding method of laser high-frequency composite welding device - Google Patents
Laser high-frequency composite welding device and welding method of laser high-frequency composite welding device Download PDFInfo
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- CN103447701A CN103447701A CN2013103851059A CN201310385105A CN103447701A CN 103447701 A CN103447701 A CN 103447701A CN 2013103851059 A CN2013103851059 A CN 2013103851059A CN 201310385105 A CN201310385105 A CN 201310385105A CN 103447701 A CN103447701 A CN 103447701A
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Abstract
The invention discloses a laser composite welding device, which comprises a conveying device, a control device, a clamping device, a high-frequency induction heater and a laser, wherein the conveying device carries workpieces and drives the workpieces to move, the control device is connected with the conveying device and controls the speed of the conveying device, the clamping device fixes the workpieces, the high-frequency induction heater heats the workpieces, the laser provides laser beams required by the laser welding, and the positions of the workpieces heated by the high-frequency induction heater are subjected to laser welding. The invention also discloses a welding method. The laser composite welding device solves the problem that in the prior art, the simple laser welding cannot reach the welding temperature, meanwhile, through the addition of a transmission device, the welding effect can be artificially controlled and regulated, the intelligent manufacturing is realized, and the work intensity of workers is reduced.
Description
Technical field
The invention belongs to the advanced manufacturing set field, relate in particular to a kind of laser high frequency Combined Welding device and welding method thereof.
Background technology
Laser processing technology belongs to advanced manufacturing technology, utilizing laser technology to weld is a new breakthrough, have and easily realize Automation of Welding with respect to common welding manner, convenient welding complicated shape, material temperature after Ear Mucosa Treated by He Ne Laser Irradiation can raise, and cools down at short notice, is equivalent to carry out heat treatment simultaneously, be conducive to improve the microstructure of weld zone, the intensity of welding point is greater than the intensity of mother metal.
But, because existing laser power is large not enough, do not reach the temperature requirement of welding.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, a kind of laser high frequency Combined Welding device and welding method thereof are provided, in the solution prior art, simple laser weld does not reach the problem of welding temperature, simultaneously by increasing transmission device, make the welding effect can manual control and adjustment, realize intelligent the manufacture, reduce workman's labour intensity.
The technical solution adopted for the present invention to solve the technical problems is: a kind of laser Combined Welding device comprises:
Conveyer, the carrying workpiece also drives workpiece movable;
Control device, be connected in described conveyer and control its speed;
Clamping device, be fixed workpiece;
High frequency induction heater, heated workpiece;
Laser instrument, provide laser weld required laser beam, and laser weld is carried out at the position that workpiece is heated by described high frequency induction heater.
Preferably, in above-mentioned laser Combined Welding device, described laser instrument is the YAG laser instrument.
Preferably, in above-mentioned laser Combined Welding device, the power of described YAG laser instrument is 800W.
Preferably, in above-mentioned laser Combined Welding device, the model of described high frequency induction heater is JL-15kw.
Preferably, in above-mentioned laser Combined Welding device, the concussion frequency of described high frequency induction heater is 30～100KHz.
Preferably, in above-mentioned laser Combined Welding device, described conveyer comprises a plurality of roll shafts that be arranged in parallel and the motor that is connected in described roll shaft.
Correspondingly, the invention also discloses a kind of welding method of laser Combined Welding device, comprising:
(1) workpiece to be processed is installed on conveyer, and by clamping device, workpiece is fixed;
(2) the concussion frequency of setting high frequency induction heater is 30-100KHz;
(3) set the speed of conveyer, the part heated by high frequency induction heater when workpiece is sent to laser instrument, opens laser instrument, carries out laser weld.
The invention also discloses the welding method of a kind of laser Combined Welding device to galvanized pipe, comprising:
(1) galvanized pipe is installed on conveyer, and by clamping device, galvanized pipe is fixed;
(2) the concussion frequency of setting high frequency induction heater is 50KHz, by high frequency induction heater, galvanized pipe position to be welded is heated to 650 ℃;
(3) set the speed of conveyer, the part heated by high frequency induction heater when workpiece is sent to laser instrument, opens laser instrument, carries out laser weld, and laser spot diameter is 6mm, and power is 650W.
The invention has the beneficial effects as follows:
(1) laser instrument is used to provide the required laser beam of laser weld, the laser instrument of selecting be the YAG laser instrument of 800W, the pulse laser that this kind laser instrument produces, less with respect to the heat affected area of common laser instrument, reduce the performance impact to non-weld zone.
(2) model of high frequency induction heater is JL-15kw, its principle is after induction heating equipment is exported strong alternation frequency electric current, produce strong alternating magnetic field by induction coil, under the effect in magnetic field, be heated surface of the work and form vortex current, thereby make rapidly the workpiece heating, can change the temperature of heating by the frequency that changes electric current, by control and conditional frequency, can effectively control the workpiece heating-up temperature.Be to be directly heat energy by electric energy conversion due to this equipment, so the thermal efficiency is higher, there is good economy, good industrial applicability is arranged.
(3) by increasing transmission device, make the welding effect can manual control and adjustment, realize intelligent the manufacture, reduce workman's labour intensity.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of laser high frequency Combined Welding device in the specific embodiment of the invention;
In figure:
1 laser instrument 2 high frequency induction heaters
3 conveyer 4 workpiece
The specific embodiment
Existing laser power is large not enough, do not reach the temperature requirement of welding, therefore need to carry out heat treatment in advance to wlding, what the present invention adopted is high frequency induction heater, its principle is to utilize the fuel factor of current vortex, is non-contact heating, and the efficiency of heating surface is high, the temperature of wlding can be brought up to the temperature needed, the high frequency induction heater of selecting has temperature controlled function.
Utilize the high-frequency induction thermal source to carry out preheating to workpiece, after workpiece reaches uniform temperature, then with laser, workpiece is welded.Laser high frequency Combined Welding is compared with simple laser weld, can play the effect of improving joint microstructure performance, reduction crackle and pore tendency and further improving welding efficiency.In addition, high-frequency induction thermal source and laser have the characteristics of noncontact environment-friendly type heating.
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Shown in ginseng Fig. 1, the laser compound welding device comprises laser instrument 1, and laser instrument 1 is preferably the YAG laser instrument that power is 800W.Laser instrument provides laser weld required laser beam, in order to workpiece 4 is carried out to laser weld.
The laser compound welding device also comprises high frequency induction heater 2, and the model of high frequency induction heater 2 is JL-15kw, and the concussion calibration is 30～100KHz.High frequency induction heater 2 is in order to be preheated workpiece.
The laser compound welding device also comprises conveyer 3, and conveyer 3 comprises a plurality of roll shafts that be arranged in parallel and the motor (not shown) that is connected in roll shaft, and motor is rotated in order to drive roller shaft.Workpiece is installed on roll shaft, and roll shaft rotates and then drives workpiece and moved.In order to prevent that workpiece 4 from rotating or departing from original route and affect welding quality, the present embodiment also provides a clamping device (not shown) in order to realize fixing to workpiece.
Motor is electrically connected with a control device (not shown), the speed by control device with the control motor.
As well known to those of ordinary skill in the art, control device can comprise microprocessor (MCU), this MCU can comprise CPU (Central Processing Unit, CPU), read-only memory module (read-only memory, ROM), random memory module (random access memory, RAM), time block, digital-to-analogue conversion module (A/D converter) and plural I/O port.Certainly, control device also can adopt the integrated circuit of other form, as: application-specific IC (Application Specific Integrated Circuit, ASIC) or on-the-spot programmable gate array (Field Programmable Gate Array, FPGA) etc.
Below for the welding of galvanized pipe, welding method and the effect to above-mentioned laser compound welding device describes, welded tube specification Φ 4.76 * 0.65mm, welding method comprises:
(1) galvanized pipe is installed on conveyer, and by clamping device, galvanized pipe is fixed;
(2) the concussion frequency of setting high frequency induction heater is 50KHz, by high frequency induction heater, galvanized pipe position to be welded is heated to 650 ℃;
(3) set the speed of conveyer, the part heated by high frequency induction heater when workpiece is sent to laser instrument, opens laser instrument, carries out laser weld, and laser spot diameter is 6mm, and power is 650W.
Steel pipe after welding is carried out to quality testing, and the data that draw are as table 1:
Testing result after table 1. welding
Surface quality, chemical composition, enlarging experiment, to flatten experiment, crooked experiment, airtight experiment all qualified, do not occur the phenomenons such as crackle in its working life.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (8)
1. a laser Combined Welding device, is characterized in that, comprising:
Conveyer, the carrying workpiece also drives workpiece movable;
Control device, be connected in described conveyer and control its speed;
Clamping device, be fixed workpiece;
High frequency induction heater, heated workpiece;
Laser instrument, provide laser weld required laser beam, and laser weld is carried out at the position that workpiece is heated by described high frequency induction heater.
2. laser Combined Welding device according to claim 1, it is characterized in that: described laser instrument is the YAG laser instrument.
3. laser Combined Welding device according to claim 2, it is characterized in that: the power of described YAG laser instrument is 800W.
4. laser Combined Welding device according to claim 1, it is characterized in that: the model of described high frequency induction heater is JL-15kw.
5. laser Combined Welding device according to claim 4, it is characterized in that: the concussion frequency of described high frequency induction heater is 30～100KHz.
6. laser Combined Welding device according to claim 1, it is characterized in that: described conveyer comprises a plurality of roll shafts that be arranged in parallel and the motor that is connected in described roll shaft.
7. the welding method of the arbitrary described laser Combined Welding device of claim 1 to 6, is characterized in that, comprising:
(1) workpiece to be processed is installed on conveyer, and by clamping device, workpiece is fixed;
(2) the concussion frequency of setting high frequency induction heater is 30-100KHz;
(3) set the speed of conveyer, the part heated by high frequency induction heater when workpiece is sent to laser instrument, opens laser instrument, carries out laser weld.
8. the welding method of the arbitrary described laser Combined Welding device of claim 1 to 6 to galvanized pipe, is characterized in that, comprising:
(1) galvanized pipe is installed on conveyer, and by clamping device, galvanized pipe is fixed;
(2) the concussion frequency of setting high frequency induction heater is 50KHz, by high frequency induction heater, galvanized pipe position to be welded is heated to 650 ℃;
(3) set the speed of conveyer, the part heated by high frequency induction heater when workpiece is sent to laser instrument, opens laser instrument, carries out laser weld, and laser spot diameter is 6mm, and power is 650W.
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| CN2013103851059A CN103447701A (en) | 2013-08-29 | 2013-08-29 | Laser high-frequency composite welding device and welding method of laser high-frequency composite welding device |
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| CN2013103851059A CN103447701A (en) | 2013-08-29 | 2013-08-29 | Laser high-frequency composite welding device and welding method of laser high-frequency composite welding device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081569A (en) * | 2014-05-20 | 2015-11-25 | 中国第一汽车股份有限公司 | Hollow brake cam shaft and machining method |
| CN106493575A (en) * | 2017-01-10 | 2017-03-15 | 温州职业技术学院 | A kind of high-frequency induction laser compound welding method and device of socket hollow copper tubing |
| CN110640315A (en) * | 2019-08-26 | 2020-01-03 | 江苏大学 | Laser welding method and device with additional variable frequency magnetic field |
| CN110860786A (en) * | 2019-12-06 | 2020-03-06 | 大连理工大学 | Inductance auxiliary pulse laser swing welding device and method |
| CN117283141A (en) * | 2023-11-15 | 2023-12-26 | 江苏优美特工程技术有限公司 | High-frequency induction laser composite welding process and welding equipment for steel pipes |
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| JPS5816781A (en) * | 1981-07-24 | 1983-01-31 | Sumitomo Metal Ind Ltd | Production of welded pipe |
| JPH03291176A (en) * | 1990-04-04 | 1991-12-20 | Sumitomo Metal Ind Ltd | Multiple heat source pipe-making welding method |
| CN1140116A (en) * | 1995-04-28 | 1997-01-15 | 日本钢管株式会社 | Method for producing electric-resistance-welded steel pipe |
| CN102825388A (en) * | 2012-07-17 | 2012-12-19 | 马钢(集团)控股有限公司 | Butt-welding method and welding device for phosphorus-containing high-strength steel strips with tensile strength of at least 450MPa |
-
2013
- 2013-08-29 CN CN2013103851059A patent/CN103447701A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816781A (en) * | 1981-07-24 | 1983-01-31 | Sumitomo Metal Ind Ltd | Production of welded pipe |
| JPH03291176A (en) * | 1990-04-04 | 1991-12-20 | Sumitomo Metal Ind Ltd | Multiple heat source pipe-making welding method |
| CN1140116A (en) * | 1995-04-28 | 1997-01-15 | 日本钢管株式会社 | Method for producing electric-resistance-welded steel pipe |
| CN102825388A (en) * | 2012-07-17 | 2012-12-19 | 马钢(集团)控股有限公司 | Butt-welding method and welding device for phosphorus-containing high-strength steel strips with tensile strength of at least 450MPa |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081569A (en) * | 2014-05-20 | 2015-11-25 | 中国第一汽车股份有限公司 | Hollow brake cam shaft and machining method |
| CN105081569B (en) * | 2014-05-20 | 2017-08-25 | 中国第一汽车股份有限公司 | A kind of hollow brake camshaft and processing method |
| CN106493575A (en) * | 2017-01-10 | 2017-03-15 | 温州职业技术学院 | A kind of high-frequency induction laser compound welding method and device of socket hollow copper tubing |
| CN106493575B (en) * | 2017-01-10 | 2018-08-28 | 温州职业技术学院 | A kind of high-frequency induction laser compound welding method and device of socket hollow copper tubing |
| CN110640315A (en) * | 2019-08-26 | 2020-01-03 | 江苏大学 | Laser welding method and device with additional variable frequency magnetic field |
| CN110860786A (en) * | 2019-12-06 | 2020-03-06 | 大连理工大学 | Inductance auxiliary pulse laser swing welding device and method |
| CN117283141A (en) * | 2023-11-15 | 2023-12-26 | 江苏优美特工程技术有限公司 | High-frequency induction laser composite welding process and welding equipment for steel pipes |
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Application publication date: 20131218 |