CN112439745A - Laser preprocessing equipment for area to be welded - Google Patents
Laser preprocessing equipment for area to be welded Download PDFInfo
- Publication number
- CN112439745A CN112439745A CN201910813625.2A CN201910813625A CN112439745A CN 112439745 A CN112439745 A CN 112439745A CN 201910813625 A CN201910813625 A CN 201910813625A CN 112439745 A CN112439745 A CN 112439745A
- Authority
- CN
- China
- Prior art keywords
- laser
- robot
- region
- welded
- welded according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses laser pretreatment equipment for a region to be welded, which relates to the technical field of welding pretreatment and comprises the following steps: the laser cleaning device comprises a laser, a holder, a controller and a robot, wherein the fixed end of the robot is fixedly arranged on a workbench, the movable end of the robot is fixedly connected with the holder, the holder is used for holding the laser, the robot is used for controlling the movement track of the laser, and the laser and the robot are both electrically connected with the controller, so that the technical defects of high labor intensity and poor cleaning effect in the conventional welding pretreatment mode are overcome.
Description
Technical Field
The invention relates to the technical field of welding pretreatment, in particular to laser pretreatment equipment for a region to be welded.
Background
Residual rusty spots, oxide scales, moisture, oil stains and the like on the surface of an area to be welded can cause welding defects such as air holes, slag inclusion, splashing and the like, the mechanical property of a welding joint is seriously influenced, and the quality of a product is reduced, so that the removal of an oxide film and oil stains on the surface of a weldment before welding is very important for guaranteeing the welding quality. Taking the welding of low alloy steel and stainless steel as an example, the corrosion and the water and oil stains on the surface of the groove can not only cause air holes, but also possibly promote hydrogen cracks and carburetion of welding seams, and even reduce the corrosion resistance of a stainless steel welding joint and the mechanical property of the low alloy steel joint. The mode of pretreating the area to be welded in the prior art mainly comprises mechanical polishing and chemical cleaning, wherein the mechanical polishing has the limitations of high labor intensity, poor processing consistency, low cleaning efficiency and the like, and the chemical cleaning has the problems of large environmental damage, poor online processing effect and the like.
Disclosure of Invention
The invention aims to provide laser pretreatment equipment for a to-be-welded area, which solves the problems in the prior art, and can not only reduce labor intensity, but also improve cleaning efficiency and effect.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides laser preprocessing equipment for a region to be welded, which comprises a laser, a clamper, a control device and a robot, wherein the fixed end of the robot is fixedly arranged on a workbench, the movable end of the robot is fixedly connected with one end of the clamper, the other end of the clamper is used for clamping the laser, the robot is used for controlling the movement track of the laser, and the laser and the robot are both electrically connected with the control device.
Preferably, the laser preprocessing device for the area to be welded further comprises a dust collection device, the dust collection device is fixedly arranged on the workbench, and the dust collection device is electrically connected with the control device.
Preferably, the control device is electrically connected with the laser through a fiber optic cable.
Preferably, the laser pretreatment device for the area to be welded further comprises a cantilever crane, the cantilever crane is fixedly arranged on the workbench, and the cantilever crane is close to the robot and is fixedly arranged for hanging the optical fiber cable.
Preferably, dust extraction includes dust absorption pipe and smoke purifier, dust absorption pipe one end with smoke purifier entry fixed connection, the dust absorption pipe other end is fixed on the holder for absorb dust and the oxide film that laser cleaning produced, smoke purifier is fixed to be set up on the workstation, be used for collecting the dust with the oxide film.
Preferably, the laser is a hundred nanosecond pulsed laser.
Preferably, the average power of the hundred nanosecond pulse laser is 30-500W.
Preferably, the adjustable pulse width of the hundred-nanosecond pulse laser is 100-300 ns.
Preferably, the laser repetition frequency of the hundred nanosecond pulse laser is 10-500 kHz.
Preferably, the laser is internally provided with a galvanometer system.
Compared with the prior art, the invention has the following technical effects:
the invention provides laser pretreatment equipment for a region to be welded, wherein one end of a clamp holder is fixed at the movable end of a robot, a laser is fixed on the clamp holder, a control device is used for controlling the movement track of the robot so as to control the position of the laser emitted by the laser to clean the surface of a workpiece, so that the labor intensity is favorably reduced, the control device is also used for controlling whether the laser is started or not, the laser is used for emitting high-energy laser beams to irradiate the surface of the workpiece, so that dirt, rust or a coating on the surface of the workpiece is evaporated or peeled off instantly, the aim of cleaning is fulfilled, the labor intensity is favorably further reduced, the laser cleaning process is quick, and the cleaning effect is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an isometric view of a laser preparation apparatus for a region to be welded according to the present invention.
Wherein: the device comprises a workpiece 1, a gripper 2, a cantilever crane 3, a robot 4, a laser cleaning controller 5, a robot controller 6 and a dust collector 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide laser pretreatment equipment for a to-be-welded area, which is used for solving the problems in the prior art, not only reducing the labor intensity, but also improving the cleaning efficiency and effect.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1: the embodiment provides laser pretreatment equipment for a region to be welded, which comprises a laser, a holder 2, a control device and a robot 4, wherein a fixed end of the robot 4 is fixedly arranged on a workbench, a movable end of the robot 4 is fixedly connected with the holder 2, the holder 2 is used for holding the laser, the robot 4 is used for controlling the movement track of the laser, the arrangement is favorable for reducing the labor intensity of workers, the laser and the robot 4 are electrically connected with the control device, the control device specifically comprises a laser cleaning controller 5 and a robot controller 6 which are fixedly arranged on the workbench, the laser cleaning controller 5 is electrically connected with the laser and used for controlling the opening or closing of the laser, the robot controller 6 is electrically connected with the robot 4 and used for controlling the movement track of the movable end of the robot 4, so that laser is emitted to the surface of a workpiece 1 through the laser, after the zinc coating, oxides, oil stains and other dirt on the surface of the workpiece 1 absorb laser energy, the rapid vaporization evaporation or vibration crushing stripping are carried out, the process is automatically completed under the control of the control device, the cleaning efficiency is improved, and compared with the existing cleaning technology, the laser cleaning technology is favorable for improving the cleaning effect.
The laser preprocessing equipment for the area to be welded further comprises a dust collection device 7, the dust collection device 7 is fixedly arranged on the workbench, the dust collection device 7 is electrically connected with the control device, and the control device is used for controlling whether the dust collection device 7 is started or not.
Specifically, the laser cleaning controller 5 of the control device is electrically connected with the laser through a fiber optic cable.
The laser preprocessing equipment for the area to be welded further comprises a cantilever crane 3, the cantilever crane 3 is fixedly arranged on the workbench, the cantilever crane 3 is fixedly arranged close to the robot 4 and used for suspending the optical fiber cable, and the robot 4 is protected from pulling the optical fiber cable in the moving process.
Dust extraction 7 includes dust absorption pipe and smoke purifier, dust absorption pipe one end and smoke purifier entry fixed connection, the dust absorption pipe other end passes through dust absorption mouth anchor clamps to be fixed on holder 2, smoke purifier is fixed to be set up on the workstation, an oxide film and dust for collecting in the cleaning process, be favorable to improving laser light path air cleanliness factor, and then be favorable to improving the cleaning performance, and discharge the air that purifies after dust extraction 7 filters, can reduce the harm to environment and human body, wherein, the dust absorption pipe is fire prevention dust absorption hose.
The laser is a hundred nanosecond pulse laser and comprises an isolator, a homogenizer, an XY galvanometer and an F lens which are packaged in the laser.
The average power of the hundred-nanosecond pulse laser is 30-500W, the adjustable pulse width of the hundred-nanosecond pulse laser is 100-300 ns, and the laser repetition frequency of the hundred-nanosecond pulse laser is
10-500 kHz, the diameter of a laser spot is 0.03-1 mm, and the single pulse energy is 0.06-50 mJ.
The laser is internally provided with a galvanometer system, and the line spacing is adjusted by adjusting the size and the arrangement of Gaussian spots so as to ensure that the overlapping rate of the spots is 0.5-0.7.
The laser pre-treatment of the areas to be welded comprises the following steps:
(1) the laser cleaning controller 5 controls the laser to be started, sets process parameters, respectively sets the average power to be 80W, the pulse width to be 250ns, the laser repetition frequency to be 90kHz, the laser spot diameter to be 0.07mm and the pulse energy to be 0.9mJ, and enables the laser beam to vertically enter.
(2) Moving the cleaned workpiece 1 and the tool platform thereof to a laser cleaning station;
(3) after the inspection of the equipment in the earlier stage is finished, the position of the laser is adjusted through the robot 4, and the stable length of the focal length is ensured.
(4) And starting the laser cleaning system, starting the laser, emitting laser to the oil stain and part of the zinc layer of the area to be welded, and starting the laser cleaning.
(5) And after the laser cleaning is finished for the preset cleaning times, the laser is turned off, and the laser cleaning work is stopped.
(6) The cleaning effect was observed from the surface state after cleaning.
(7) And (5) repeating the steps (2) to (5) to complete the laser cleaning work of the oil stain and part of the zinc layer of the area to be welded of the continuous workpiece 1.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A laser pre-treatment device for a region to be welded, characterized in that: including laser instrument, holder, controlling means and robot, the fixed end of robot is fixed to be set up on the workstation, the expansion end of robot with holder fixed connection, the holder is used for the centre gripping the laser instrument, the robot is used for control the movement track of laser instrument, the laser instrument with the robot all with controlling means electricity is connected.
2. Laser pre-treatment device of a region to be welded according to claim 1, characterized in that: still include dust extraction, dust extraction is fixed to be set up on the workstation, dust extraction with controlling means electricity is connected.
3. Laser pre-treatment device of a region to be welded according to claim 1, characterized in that: the control device is electrically connected with the laser through a fiber optic cable.
4. Laser pre-treatment device of a region to be welded according to claim 3, characterized in that: the optical fiber cable hanging device is characterized by further comprising a cantilever crane, wherein the cantilever crane is fixedly arranged on the workbench, and is close to the robot and fixedly arranged for hanging the optical fiber cable.
5. Laser pre-treatment device of a region to be welded according to claim 1, characterized in that: dust extraction includes dust absorption pipe and smoke purifier, dust absorption pipe one end with smoke purifier entry fixed connection, the dust absorption pipe other end is fixed on the holder for absorb dust and the oxide film that laser cleaning produced, smoke purifier is fixed to be set up on the workstation, be used for collecting the dust with the oxide film.
6. Laser pre-treatment device of a region to be welded according to claim 1, characterized in that: the laser is a hundred nanosecond pulsed laser.
7. The laser pretreatment apparatus of a region to be welded according to claim 6, characterized in that: the average power of the hundred nanosecond pulse laser is 30-500W.
8. The laser pretreatment apparatus of a region to be welded according to claim 6, characterized in that: the adjustable pulse width of the hundred-nanosecond pulse laser is 100-300 ns.
9. The laser pretreatment apparatus of a region to be welded according to claim 6, characterized in that: the laser repetition frequency of the hundred nanosecond pulse laser is 10-500 kHz.
10. Laser pre-treatment device of a region to be welded according to claim 1, characterized in that: the laser is internally provided with a galvanometer system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813625.2A CN112439745A (en) | 2019-08-30 | 2019-08-30 | Laser preprocessing equipment for area to be welded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813625.2A CN112439745A (en) | 2019-08-30 | 2019-08-30 | Laser preprocessing equipment for area to be welded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112439745A true CN112439745A (en) | 2021-03-05 |
Family
ID=74742231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910813625.2A Pending CN112439745A (en) | 2019-08-30 | 2019-08-30 | Laser preprocessing equipment for area to be welded |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112439745A (en) |
-
2019
- 2019-08-30 CN CN201910813625.2A patent/CN112439745A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110976438A (en) | Aluminum alloy automobile body section bar welds preceding, welds back laser equipment of polishing | |
| CN110976437A (en) | Laser automatic pretreatment equipment for to-be-welded area of aluminum alloy part | |
| CN108436270B (en) | Surface pretreatment method for aluminum alloy laser welding | |
| CN103801835A (en) | Method for remanufacturing cracked and damaged aluminum alloy thin-walled workpiece through laser | |
| CN105081568B (en) | Method for laser welding | |
| CN107639083A (en) | A kind of aluminium alloy anode oxide film dry laser cleaning equipment and cleaning method | |
| CN105750743A (en) | Laser welding device and method based on laser cleaning pretreatment | |
| CN103962734B (en) | Laser cutting fast zoom method for punching | |
| JPH08206869A (en) | Underwater laser beam processing method and device therefor | |
| CN112371653A (en) | Laser cleaning method for removing oxide skin on surface of titanium alloy | |
| CN106862177B (en) | Laser cleaning equipment and method for oil stain on steel wire rope | |
| CN105598587A (en) | Method for removing coating of hot-rolled steel sheet by virtue of ultra-short pulse laser galvanometer | |
| CN110504099A (en) | A kind of method and system of laser ablation inductance copper coil paint layer | |
| CN111103301B (en) | Laser cleaning quality detection method | |
| CN211613662U (en) | Laser preprocessing equipment for area to be welded | |
| CN112439745A (en) | Laser preprocessing equipment for area to be welded | |
| CN208643532U (en) | A kind of aluminium alloy anode oxide film dry laser cleaning equipment | |
| CN112007919A (en) | Method for forming amorphous nanocrystalline modified layer on stainless steel surface through pulse laser cleaning | |
| JP3306291B2 (en) | Rust removal method for metal equipment installed outdoors | |
| CN110480165A (en) | Method for laser welding and laser welding apparatus | |
| CN205798722U (en) | Laser soldering device based on laser cleaning pre-treatment | |
| WO2021013939A1 (en) | Method for the removal of a coating from a metal substrate by laser ablation | |
| CN210676213U (en) | Aluminum alloy anodic oxidation film and surface paint film composite layer laser cleaning device | |
| CN107999959A (en) | A kind of hand-held laser welding apparatus and its welding method | |
| CN215698881U (en) | Laser hybrid welding device for robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |