CN110977175A - Steel plate coating removing equipment and method - Google Patents
Steel plate coating removing equipment and method Download PDFInfo
- Publication number
- CN110977175A CN110977175A CN201911306023.4A CN201911306023A CN110977175A CN 110977175 A CN110977175 A CN 110977175A CN 201911306023 A CN201911306023 A CN 201911306023A CN 110977175 A CN110977175 A CN 110977175A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- laser head
- coating
- unit
- face
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
- B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention belongs to the technical field of tailor welding, and particularly relates to a steel plate coating removing device and a method thereof. The device comprises a servo synchronous conveyor, a steel plate end face positioning mechanism, a laser head moving unit, a control unit, a detection system, a laser and a control system thereof, wherein the servo synchronous conveyor is used for conveying a steel plate; the steel plate end face positioning mechanism is arranged on one side of the servo synchronous conveyor and is used for positioning reference of the steel plate; the laser head moving unit is arranged above the servo synchronous conveyor and used for mounting a laser head; the detection system is arranged on the steel plate end face positioning mechanism and used for detecting the moving position of the steel plate and the width and thickness of the removed coating; the control unit is used for controlling the servo synchronous conveyor, the steel plate end face positioning mechanism and the laser head moving unit. The invention achieves continuous light emission of the laser, maximizes the utilization rate of the laser and improves the use efficiency of the whole set of equipment.
Description
Technical Field
The invention belongs to the technical field of tailor welding, and particularly relates to a steel plate coating removing device and a method thereof.
Background
At present, the tailor-welding technology is more and more mature in application, and tailor-welded parts are selected for more vehicle types. The light weight is a mode that the effect is the fastest and the technology is relatively mature when automobile enterprises deal with the standard requirements of fuel automobile emission which are stricter. Of the many technical routes to weight reduction, aluminum body and composite materials are not currently mainstream for cost and technical reasons. Lightweight steel sheet stamped-formed part welded structure vehicle bodies are still the mainstream of vehicle bodies within 5-10 years. The high-strength steel piece is a welding piece mainly selected at present, hot forming and tailor welding are two main forms of the high-strength steel piece, coatings of steel plates are diversified, except galvanized plates, aluminum-silicon coated steel plates are also provided, the aluminum-silicon coating of a welding area of the aluminum-silicon coated steel plates needs to be removed firstly, otherwise aluminum-silicon can be fused into a welding bead to form a brittle and hard metal compound with a steel plate base material, the tensile strength of the metal compound is far lower than that of the base material, and the conditions of fracture and the like occur at the welding seam after the steel plates are subjected to heat treatment forming.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a steel plate coating removing apparatus and a method thereof, so as to solve the problem of fracture of the existing aluminum silicon coating and other steel plates during tailor welding.
In order to achieve the purpose, the invention adopts the following technical scheme:
a steel sheet coating removal apparatus, comprising: the device comprises a laser and a control system thereof, a servo synchronous conveyor, a steel plate end face positioning mechanism, a laser head moving unit, a detection system and a control unit, wherein the servo synchronous conveyor is used for conveying a steel plate; the steel plate end face positioning mechanism is arranged on one side of the servo synchronous conveyor and is used for positioning reference of the steel plate; the laser head moving unit is arranged above the servo synchronous conveyor and used for mounting a laser head, and the laser head moving unit has the freedom degree of linear motion along an X, Y, Z axis and the freedom degree of rotation around a X, Y axis; the laser head is connected with the laser and a control system thereof; the detection system is arranged on the steel plate end face positioning mechanism and is provided with two detection points which are respectively distributed in front of and behind the laser head moving unit along the conveying direction of the servo synchronous conveyor and used for detecting the moving position of the steel plate and the width and thickness of the removed coating; the control unit is used for controlling the servo synchronous conveyor, the steel plate end face positioning mechanism and the laser head moving unit.
The servo synchronous conveyor comprises a main frame, a conveying belt, an unpowered pinch roller, an air cylinder and a magnetic suction mechanism, wherein the conveying belt, the unpowered pinch roller, the air cylinder and the magnetic suction mechanism are arranged on the main frame; the unpowered pressing wheel is controlled to lift through the air cylinder, and the unpowered pressing wheel and the conveying belt clamp the steel plate; the unpowered pinch roller and the steel plate end face positioning mechanism form an included angle of 10-45 degrees, and thrust for enabling the steel plate to be close to the steel plate end face positioning mechanism is generated in the steel plate conveying process; the magnetic attraction mechanism is positioned below the conveying belt and used for attracting the steel plate to enable the steel plate to be attached to the conveying belt tightly.
And an unpowered supporting wheel is arranged on the other side of the servo synchronous conveyor and used for supporting a steel plate with a conveying belt width, and a rubber coating is adopted on the surface of the unpowered supporting wheel.
The steel plate end face positioning mechanism comprises a support frame body, an unpowered bearing and end face small magnets, wherein the support frame body is parallel to the conveying direction of the servo synchronous conveyor, and the unpowered bearing and the end face small magnets are alternately arranged on the support frame body at intervals.
Laser head mobile unit is equipped with the laser head including the servo mobile unit of X axle, the servo mobile unit of Y axle, the servo mobile unit of Z axle, the servo rotary unit of X axle and the servo rotary unit of Y axle that connect gradually, wherein the servo rotary unit of Y axle, the servo rotary unit of X axle and the servo rotary unit's of Y axle rotation angle is 45.
The detection system comprises a correlation sensor and a high-precision distance measuring sensor, wherein the correlation sensor is used for detecting a detection point in front of the laser head so as to detect the position of the moving steel plate, and the high-precision distance measuring sensor is used for detecting a detection point at the rear side of the laser head so as to detect the width and the thickness of the removed coating.
The steel plate coating removing equipment further comprises a dust removing system, a steel plate end face cleaning unit and a protection unit, wherein the dust removing system is arranged below the laser head and is installed on the steel plate end face positioning mechanism, the steel plate end face cleaning unit is located behind the laser head and plays a role in cleaning the coating end face, and the protection unit is arranged on the periphery of the laser head moving unit and is integrally protected.
The steel plate single-side blacking unit is arranged above the front end of the servo synchronous conveyor and used for performing laser blacking on a steel plate coating removing position on the servo synchronous conveyor.
A method for removing a coating layer using the steel sheet coating removing apparatus, the method comprising the steps of:
1) conveying a steel plate to be processed by a servo synchronous conveyor, and positioning the steel plate by a steel plate end face positioning mechanism arranged on one side of the servo synchronous conveyor;
2) performing blackening treatment; conveying the steel plate to a steel plate single-side blackening unit, and carrying out blackening treatment on a region to be welded of the steel plate through the steel plate single-side blackening unit;
3) removing the coating: the steel plate is conveyed to the lower part of the laser head moving unit and is pressed tightly by the unpowered pinch roller; rectangular light spots emitted by a laser head arranged on a laser head moving unit perform coating removal treatment on a region to be welded of the steel plate, wherein the coating comprises an aluminum silicon layer and an alloy layer, and a top welding region and an end face welding region are obtained after the coating is removed;
4) cleaning: and cleaning the end face of the steel plate after coating removal through a steel plate end face cleaning unit.
The speed of servo synchronous conveyor conveying steel plates is 6-12m/min, the laser head and the end face of the steel plate form an included angle of 5-45 degrees, and detection systems are arranged in front of and behind the laser head moving unit and used for detecting the moving position of the steel plate and removing the width and thickness of a coating.
The invention has the advantages and beneficial effects that:
1. the invention adopts the servo synchronous conveyor to convey the steel plates, can continuously place the steel plates and convey the steel plates side by side, achieves the continuous light emitting of the laser and maximizes the utilization rate of the laser, thereby improving the use efficiency of the whole set of equipment and maximizing the use side benefit of the equipment
2. The invention adopts the ink-jet printer to carry out the blacking operation on the coating removing part, and aims to improve the laser absorption rate, thereby improving the removing speed of the equipment and finally improving the efficiency by more than one time.
3. The rectangular light spot adopted by the invention aims to ensure that the unit area of the rectangular light spot is smaller than that of a circular light spot and the energy density is higher than that of the circular light spot under the condition that the diagonal line of the rectangular light spot and the diameter of the circular light spot are the same, so that the energy is more concentrated, and the coating removal speed is improved.
4. The invention adopts the inclined laser beam to remove the coating extruded to B when the steel plate is sheared, so that the coating is removed more cleanly, and the yield of the product is improved.
5. The invention adopts a magnetic conveying belt structure, the permanent magnet is arranged below the synchronous toothed belt, and the distance between the permanent magnet and the synchronous toothed belt is adjustable, so that the magnetic force between the permanent magnet and the workpiece steel plate is adjusted.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a servo synchronous conveyor according to the present invention;
FIG. 3 is a second schematic view of the structure of the servo synchronous conveyor of the present invention;
FIG. 4 is a schematic structural diagram of a steel plate end face positioning mechanism according to the present invention;
FIG. 5 is an enlarged view taken at I in FIG. 4;
FIG. 6 is a schematic structural view of a laser head moving unit according to the present invention;
FIG. 7 is a schematic structural diagram of a protection unit according to the present invention;
FIG. 8 is a schematic view of the laser removal of the Al-Si coating of a steel sheet according to the present invention;
FIG. 9 is an enlarged view taken at II in FIG. 8;
figure 10 is an exploded view of the unpowered puck and plate of the present invention.
In the figure, 1 is a laser and a control system thereof, 2 is a correlation sensor, 3 is a servo synchronous conveyor, 4 is a steel plate end face positioning mechanism, 5 is a steel plate single-edge blacking unit, 6 is a high-precision distance measuring sensor, 7 is a dust removal system, 8 is a laser head moving unit, 9 is a steel plate end face cleaning unit, 10 is a conveyor belt, 11 is an unpowered supporting wheel, 12 is an unpowered pinch roller, 13 is a main frame, 14 is a driven wheel, 15 is a permanent magnet, 16 is a magnetic fixing plate, 17 is a pinch roller supporting frame, 18 is a driving wheel, 19 is a speed reducer, 20 is a servo motor, 21 is a supporting frame body, 22 is an unpowered bearing, 23 is a small end face magnet, 24 is an X-axis servo moving unit, 25 is a Y-axis servo moving unit, 26 is a Z-axis servo moving unit, 27 is a Y-axis servo rotating unit, 28 is an X-axis servo rotating unit, 29 is an X-axis servo rotating unit, 30 is a laser unit, 31 is a laser beam, a is an aluminum silicon layer, B is a steel plate base body, A is a top welding area, B is an end face welding area, M is a coating removing direction, E is a.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the steel plate coating removing apparatus provided by the present invention comprises a servo synchronous conveyor 3, a steel plate end face positioning mechanism 4, a laser head moving unit 8, a detection system, a control unit, a laser and its control system 1, wherein the servo synchronous conveyor 3 is used for conveying a steel plate; the steel plate end face positioning mechanism 4 is arranged on one side of the servo synchronous conveyor 3 and is used for positioning reference of the steel plate; the laser head moving unit 8 is arranged above the servo synchronous conveyor 3 and is used for mounting the laser head 28, and the laser head moving unit 8 has the freedom degree of rectilinear motion along an X, Y, Z shaft and the freedom degree of rotation around a X, Y shaft; the detection system is arranged on the steel plate end face positioning mechanism 4, and is provided with two detection points which are respectively distributed in front of and behind the laser head moving unit 8 and used for detecting the moving position of the steel plate and the width and thickness of the removed coating; the control unit is used for controlling the servo synchronous conveyor 3, the steel plate end face positioning mechanism 4 and the laser head moving unit 8.
As shown in fig. 2-3, the servo synchronous conveyor 3 includes a main frame 13, a conveyor belt 10 disposed on the main frame 13, an unpowered pressing wheel 12, a cylinder and a magnetic attraction mechanism, wherein the unpowered pressing wheel 12 is mounted at an end of the cylinder, the cylinder is hung upside down on a pressing wheel support frame 17 above the conveyor belt 10, and the pressing wheel support frame 17 spans over the main frame 13. The cylinder controls the unpowered pressing wheel 12 to lift, and the unpowered pressing wheel 12 and the conveying belt 10 clamp the steel plate; an included angle of 10-45 degrees is formed between the unpowered pinch roller 12 and the steel plate end face positioning mechanism 4, and thrust for enabling the steel plate to be close to the steel plate end face positioning mechanism 4 is generated in the steel plate conveying process; the magnetic attraction mechanism is located below the conveying belt 10 and used for attracting the steel plate to enable the steel plate to be attached to the conveying belt 10 tightly.
As shown in fig. 10, an included angle a between the unpowered pinch roller 12 and the steel plate end face positioning mechanism 4 is 10 ° to 45 °, in the process of conveying the steel plate, the steel plate drives the unpowered pinch roller 12 to rotate, the unpowered pinch roller 12 generates a reaction force on the steel plate, and the reaction force has a component force perpendicular to the steel plate end face positioning mechanism 4, so that a thrust force for enabling the steel plate to approach the steel plate end face positioning mechanism 4 is generated.
The other side of the conveyer belt 10 is provided with an unpowered supporting wheel 11, the unpowered supporting wheel 11 is used for supporting a steel plate wider than the conveyer belt 10, and the surface of the unpowered supporting wheel 11 is coated with rubber.
The magnetic attraction mechanism comprises a permanent magnet 15 and a magnetic fixing plate 16, wherein the magnetic fixing plate 16 is fixed on the main frame 13, and the permanent magnet 15 is arranged on the magnetic fixing plate 16.
In the embodiment of the invention, the unpowered supporting wheel 11 is arranged at the right side of the conveying direction of the conveying belt 10, the width of the unpowered supporting wheel is 300-500mm, and the unpowered supporting wheel 11 is used for supporting a steel plate wider than the conveying belt 10, and the rubber coating is adopted on the surface of the unpowered supporting wheel 11 to prevent the steel plate from being scratched. The conveying belt 10 is a synchronous toothed belt, the width of the conveying belt is 150-250mm, the conveying belt is arranged in a horizontal position, the driving wheel 18, the driven wheel 14 and the synchronous toothed belt form a belt circulating mechanism and are integrally built on the main frame 13, the driving wheel 18 is located at the blanking end of the conveying belt 10 and is connected with the servo motor 20 through the speed reducer 19, power of the servo motor 20 is transmitted to the synchronous toothed belt, the speed of the conveying belt 10 is enabled to be adjustable and controllable, and the conveying belt runs stably, N10 x 50 x 100 mm-sized permanent magnets 15 are arranged in the synchronous toothed belt circulating mechanism through the magnetic fixing plate 16, and the lower portion of the synchronous toothed belt is used for guaranteeing that a steel plate is tightly adsorbed on the conveying belt 10 to be transported stably, so that. The permanent magnets 15 near the driving wheel 18 and the driven wheel 14 can reduce the magnetic force on the synchronous toothed belt by increasing the distance between the permanent magnets and the synchronous toothed belt, so that an operator can conveniently pick and place the steel plate.
As shown in fig. 4-5, the steel plate end face positioning mechanism 4 includes a support frame 21, an unpowered bearing 22 and an end face small magnet 23, wherein the support frame 21 is parallel to the conveying direction of the servo synchronous conveyor 3, and the unpowered bearing 22 and the end face small magnet 23 are alternately arranged on the support frame 21 at intervals.
In the embodiment of the invention, the steel plate end face positioning mechanism 4 is arranged on the left side of the conveying direction of the servo synchronous conveyor 3, the unpowered bearings 22 are arranged in a straight line to form a positioning surface, the positioning surface formed by the unpowered bearings 22 is ensured to be parallel to the conveying direction of the servo synchronous conveyor 3, the unpowered bearings 22 can roll along with the movement of the steel plate, and the accurate positioning of the plate is ensured. A plurality of small magnets 23 with the end face of 5 multiplied by 5mm are arranged between two adjacent unpowered bearings 22, the magnetic poles face the conveying belt 10, and the end face of the steel plate can be simply adsorbed and positioned, so that the steel plate is ensured to be in tight contact with the bearings.
In the embodiment of the present invention, the small end magnets 23 only attract the steel plate to be in close contact with the unpowered bearing 22, and the attraction force is much smaller than the power of forward conveying of the steel plate, so that the steel plate is not stationary relative to the small end magnets 23, but the steel plate moves forward. Similarly, the permanent magnet 15 disposed below the conveyor belt 10 only adheres the steel plate to the conveyor belt 10, but does not adhere and fix the steel plate, and cannot prevent the steel plate from being conveyed forward.
As shown in fig. 6, the laser head moving unit 8 includes a support frame, an X-axis servo moving unit 24, a Y-axis servo moving unit 25, a Z-axis servo moving unit 26, an X-axis servo rotating unit 29, and a Y-axis servo rotating unit 27, which are disposed on the support frame and sequentially connected, wherein the laser head 28 is disposed on the Y-axis servo rotating unit 27, and the rotation angles of the X-axis servo rotating unit 29 and the Y-axis servo rotating unit 27 are ± 45 °.
In the embodiment of the invention, the laser head 28 is positioned above the middle position of the servo synchronous conveyor 3 and the steel plate end face positioning mechanism 4, the stroke of the X-axis servo moving unit 24 is 400mm, the strokes of the Y-axis servo moving unit 25 and the Z-axis servo moving unit 26 are respectively 250mm and 200mm, the laser focus position is unchanged when the laser head 28 rotates, the rotating angles of the X-axis servo rotating unit 29 and the Y-axis servo rotating unit 27 are +/-45 degrees, and the size of the focus spot of the laser head 28 is 1 multiplied by 2 mm.
The X-axis servo moving unit 24, the Y-axis servo moving unit 25, and the Z-axis servo moving unit 26 each include a servo rotating unit, a lead screw, a linear guide, and the like. The servo rotating unit consists of a servo motor and a turbine worm slewing bearing.
The detection system comprises a correlation sensor 2 and a high-precision distance measuring sensor 6, wherein the correlation sensor 2 is used for detecting a detection point in front of the laser head 28 so as to detect the moving position of the steel plate; the high-precision distance measuring sensor 6 is used to detect a detection point on the rear side of the laser head 28 to detect the width and thickness of the coating removal.
As shown in fig. 1 and 7, the steel plate coating removing device further comprises a dust removing system 7, a steel plate end face cleaning unit 9 and a protection unit 30, wherein the dust removing system 7 is arranged below the laser head 28 and mounted on the steel plate end face positioning mechanism 4, the steel plate end face cleaning unit 9 is located behind the laser head 28 and plays a role in cleaning and removing the coating end face, and the protection unit 30 is arranged on the periphery of the laser head moving unit 8 and integrally protects the laser head moving unit 8.
As shown in fig. 1, a steel plate single-side blacking unit 5 is arranged above the front end of the servo synchronous conveyor 3, and the steel plate single-side blacking unit 5 is used for performing laser blacking on a steel plate coating removing position on the servo synchronous conveyor 3, so that the laser absorption rate is improved by blacking the steel plate.
When the device works, firstly, the coating removing position of the steel plate on the servo synchronous conveyor 3 is blackened, so that the laser absorption rate of the steel plate is improved, and the working beat is accelerated; the coating is then removed by laser. In the embodiment of the invention, the single-side blacking unit 5 adopts an ink-jet printer to blacken the coating removing part.
As shown in fig. 8 to 9, the steel sheet is composed of a steel sheet substrate c, and coating layers covering the upper and lower surfaces of the steel sheet substrate c, the coating layers including an aluminum silicon layer a and an alloy layer b located inside the aluminum silicon layer a. The al-si layer a and the alloy layer b were all removed by the laser beam 31 at the welded area of the top 0.5-1.5mm width of the steel sheet, while the residual coating of 1/2 height was all removed at the welded area of the end face of the steel sheet.
In the embodiment of the invention, the laser head moving unit 8 is arranged above the middle position of the servo synchronous conveyor 3 and the steel plate end face positioning mechanism 4 and has the freedom degree of linear motion along an X, Y, Z axis and the freedom degree of rotation along a X, Y axis, and the detection system is arranged on the steel plate end face positioning mechanism 4 and has two detection points which are respectively distributed in front of and behind the laser head 28 and used for detecting the moving position of the steel plate and the width and the thickness of a removed coating.
The steel plate end face cleaning unit 9 is located behind the laser head 28 along the steel plate conveying direction and located at the front end of the high-precision distance measuring sensor 6, and the steel plate end face cleaning unit 9 is composed of a rotary motor and a rotary brush and plays a cleaning role on the end face of the steel plate with coatings removed.
The laser and the control system 1 thereof comprise a laser, a water cooler, a control console and an electric cabinet, wherein the laser and the water cooler are installed in a counter together to form a standardized unit. The laser is a 1000W pulse laser.
The protection unit 30 is composed of aluminum profiles and aluminum plates, is arranged on the periphery of the laser head moving unit 8, and is integrally protected, so that the damage of laser radiation to operators is reduced.
A method for removing a coating by using a steel plate coating removing device comprises the following steps:
1) conveying a steel plate to be processed by a servo synchronous conveyor 3, and positioning the steel plate by a steel plate end face positioning mechanism 4 arranged on one side of the servo synchronous conveyor 3;
2) performing blackening treatment; the steel plate is conveyed to the steel plate single-side blackening unit 5, and blackening treatment is carried out on the area to be welded of the steel plate through the steel plate single-side blackening unit 5;
3) removing the coating: the steel plate is conveyed to the lower part of the laser head moving unit 8, and the steel plate is pressed tightly by the unpowered pinch roller 12; rectangular light spots emitted by a laser head 28 arranged on a laser head moving unit 8 perform coating removal treatment on a region to be welded of the steel plate, wherein the coating comprises an aluminum silicon layer a and an alloy layer B, and a top welding region A and an end face welding region B are obtained after the coating is removed;
4) cleaning: the uncoated steel sheet end faces are cleaned by a steel sheet end face cleaning unit 9.
The speed of the servo synchronous conveyor 3 for conveying the steel plate is 6-12m/min, and an included angle of 5-45 degrees is formed between the laser head 28 and the end face of the steel plate; detection systems are arranged in front of and behind the laser head moving unit 8 and used for detecting the moving position of the steel plate and the width and thickness of the removed coating. The width of the top welding area is 0.5-1.5mm, and the height of the end surface welding area is 1/2 of the height of the steel plate.
Examples
Coating removal, tailor welding and hot stamping quenching are carried out on the automobile B column steel plate with the aluminum-silicon coating of 1.2mm and 1.8mm, and 5 different coating removal methods are adopted before laser tailor welding:
in the method 1, 200 steel plates are subjected to coating removal through the equipment without blackening the steel plates, the power is 850W, the moving speed of the steel plates is 8m/min, the included angle formed by the laser beam 31 and the end faces of the steel plates is 5 degrees, the aluminum silicon layer a and the alloy layer B with the width of 1-1.2mm at the welding area of the steel plates are removed through the laser beam 31, the top welding area A is obtained, and meanwhile, the residual coatings on the end faces of the steel plates are removed, and the end face welding area B is obtained.
And 2, removing the coating of 200 steel plates by the equipment, blackening the steel plates, using the power of 850W, moving the steel plates at the speed of 12m/min, forming an included angle between the laser beam 31 and the end faces of the steel plates to be 5 degrees, removing the aluminum silicon layer a and the alloy layer B which are 1-1.2mm wide at the welding area of the steel plates by the laser beam 31 to obtain a top welding area A, and simultaneously removing the residual coating on the end faces of the steel plates to obtain an end face welding area B.
And 3, removing the coating of 200 steel plates by the equipment, blackening the steel plates, using the power of 850W, moving the steel plates at the speed of 12m/min, forming an included angle between a laser beam 31 and the end faces of the steel plates to be 30 degrees, removing the aluminum silicon layer a and the alloy layer B which are 1-1.2mm wide at the welding area of the steel plates by the laser beam 31 to obtain a top welding area A, and simultaneously removing the residual coating on the end faces of the steel plates to obtain an end face welding area B.
And 4, removing the coating of 200 steel plates by the equipment, blackening the steel plates, using the power of 850W, moving the steel plates at the speed of 12m/min, forming an included angle between a laser beam 31 and the end faces of the steel plates to be 45 degrees, removing the aluminum silicon layer a and the alloy layer B which are 1-1.2mm wide at the welding area of the steel plates by the laser beam 31 to obtain a top welding area A, and simultaneously removing the residual coating on the end faces of the steel plates to obtain an end face welding area B.
And 5, removing the coating of 200 steel plates by the equipment without blackening the steel plates, using 850W of power, moving the steel plates at a speed of 8m/min, forming an included angle between a laser beam 31 and the end faces of the steel plates to be 0 degrees, removing the aluminum silicon layer a and the alloy layer B which are 1.5-2.0mm wide at the welding area of the steel plates by the laser beam 31 to obtain a top welding area A, and removing the end face welding area B.
The five methods respectively obtain 100 tailor-welded parts through laser tailor-welding, then carry out hot stamping quenching on the tailor-welded parts, the heating temperature is 930 ℃, the heating time is 3 minutes, the pressure is maintained in a water-filled mold for 10 seconds, and the evaluation is carried out according to the qualified rate:
therefore, the laser beam 31 is utilized to remove the surface coating of the steel plate, the steel plate with the surface coating of aluminum and aluminum alloy is blackened, the laser head 28 and the end face of the steel plate form an included angle of 5-45 degrees, the qualification rate of the process conditions is high, and the working efficiency is improved.
According to the invention, the servo synchronous conveyor is adopted to convey the steel plates, so that the steel plates can be continuously placed and conveyed side by side, continuous light emission of the laser is achieved, the utilization rate of the laser is maximized, the use efficiency of the whole set of equipment is improved, and the use side benefit of the equipment is maximized.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A steel sheet coating removal apparatus, comprising:
a laser and its control system (1);
a servo synchronous conveyor (3) for conveying the steel plate;
the steel plate end face positioning mechanism (4) is arranged on one side of the servo synchronous conveyor (3) and is used for positioning a steel plate;
the laser head moving unit (8) is arranged above the servo synchronous conveyor (3) and used for mounting a laser head (28), the laser head moving unit (8) has a degree of freedom which does linear motion along an X, Y, Z axis and a degree of freedom which rotates around a X, Y axis, and the laser head (28) is connected with a laser and a control system (1) thereof;
the detection system is arranged on the steel plate end face positioning mechanism (4), is provided with two detection points which are respectively distributed in front of and behind the laser head moving unit (8) along the conveying direction of the servo synchronous conveyor (3), and is used for detecting the moving position of the steel plate and the width and thickness of the removed coating;
and the control unit is used for controlling the servo synchronous conveyor (3), the steel plate end face positioning mechanism (4) and the laser head moving unit (8).
2. The steel plate coating removing equipment according to claim 1, wherein the servo synchronous conveyor (3) comprises a main frame (13), a conveying belt (10) arranged on the main frame (13), an unpowered pinch roller (12), a cylinder and a magnetic suction mechanism, wherein the unpowered pinch roller (12) is arranged at the end of the cylinder, the cylinder is hung upside down on a pinch roller support frame (17) arranged above the conveying belt (10), the pinch roller support frame (17) stretches across the main frame (13), the cylinder controls the unpowered pinch roller (12) to lift, and the unpowered pinch roller (12) and the conveying belt (10) clamp a steel plate; the unpowered pinch roller (12) and the steel plate end face positioning mechanism (4) form an included angle of 10-45 degrees, and thrust for enabling the steel plate to be close to the steel plate end face positioning mechanism (4) is generated in the steel plate conveying process; the magnetic attraction mechanism is positioned below the conveying belt (10), and the steel plate is tightly attached to the conveying belt (10) through the adsorption effect.
3. The steel plate coating removal equipment according to claim 1, wherein the steel plate end face positioning mechanism (4) comprises a support frame body (21), unpowered bearings (22) and end face small magnets (23), wherein the support frame body (21) is parallel to the conveying direction of the servo synchronous conveyor (3), and the unpowered bearings (22) and the end face small magnets (23) are alternately arranged on the support frame body (21) at intervals.
4. The steel plate coating removing equipment according to claim 1, wherein the servo synchronous conveyor (3) is provided with an unpowered supporting wheel (11) at the other side, the unpowered supporting wheel (11) is used for supporting a steel plate wider than the conveying belt (10), and the surface of the unpowered supporting wheel (11) is coated with rubber.
5. The steel plate coating removing equipment according to claim 1, wherein the laser head moving unit (8) comprises an X-axis servo moving unit (24), a Y-axis servo moving unit (25), a Z-axis servo moving unit (26), an X-axis servo rotating unit (29) and a Y-axis servo rotating unit (27) which are connected in sequence, wherein the laser head (8) is arranged on the Y-axis servo rotating unit (27), and the rotating angles of the X-axis servo rotating unit (29) and the Y-axis servo rotating unit (27) are +/-45 degrees.
6. A steel sheet coating removal apparatus according to claim 1, wherein said detection system comprises a correlation sensor (2) for detecting a detection point in front of the laser head (28) to detect the position of the steel sheet movement, and a high precision distance measuring sensor (6) for detecting a detection point at the rear side of the laser head (28) to detect the width and thickness of the coating removal.
7. The steel plate coating removing equipment according to claim 1, further comprising a dust removing system (7), a steel plate end face cleaning unit (9) and a protection unit (30), wherein the dust removing system (7) is arranged below the laser head (28) and mounted on the steel plate end face positioning mechanism (4), the steel plate end face cleaning unit (9) is located behind the laser head (28) and used for cleaning the coating removing end face, and the protection unit (30) is arranged on the periphery of the laser head moving unit (8) and used for integrally protecting the laser head moving unit (8).
8. The steel plate coating removal device according to claim 1, wherein a steel plate single-side blackening unit (5) is arranged above the front end of the servo synchronous conveyor (3), and the steel plate single-side blackening unit (5) is used for performing laser blackening on a steel plate coating removal position on the servo synchronous conveyor (3).
9. A method for removing a coating layer using the steel sheet coating removing apparatus of any one of claims 1 to 8, comprising the steps of:
1) conveying a steel plate to be processed by a servo synchronous conveyor (3), and positioning the steel plate by a steel plate end face positioning mechanism (4) arranged on one side of the servo synchronous conveyor (3);
2) performing blackening treatment; the steel plate is conveyed to a steel plate single-side blackening unit (5), and blackening treatment is carried out on the area to be welded of the steel plate through the steel plate single-side blackening unit (5);
3) removing the coating: the steel plate is conveyed to the lower part of the laser head moving unit (8), and the steel plate is pressed tightly by the unpowered pinch roller (12); rectangular light spots emitted by a laser head (28) arranged on a laser head moving unit (8) perform coating removal treatment on a region to be welded of the steel plate, wherein the coating comprises an aluminum silicon layer (a) and an alloy layer (B), and a top welding region (A) and an end face welding region (B) are obtained after the coating is removed;
4) cleaning: and cleaning the end face of the steel plate after coating removal through a steel plate end face cleaning unit (9).
10. The method for removing the coating of the steel plate coating removing equipment according to the claim 9, characterized in that the servo synchronous conveyor (3) conveys the steel plate at a speed of 6-12m/min, the laser heads (28) form an included angle of 5-45 degrees with the end surface of the steel plate, and detection systems are arranged in front of and behind the laser head moving unit (8) for detecting the moving position of the steel plate and the width and thickness of the removed coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306023.4A CN110977175B (en) | 2019-12-18 | 2019-12-18 | Steel plate coating removing equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306023.4A CN110977175B (en) | 2019-12-18 | 2019-12-18 | Steel plate coating removing equipment and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110977175A true CN110977175A (en) | 2020-04-10 |
| CN110977175B CN110977175B (en) | 2022-05-31 |
Family
ID=70094993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911306023.4A Active CN110977175B (en) | 2019-12-18 | 2019-12-18 | Steel plate coating removing equipment and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110977175B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673622A (en) * | 2020-06-01 | 2020-09-18 | 江苏佰健环保科技有限公司 | Environment-friendly cleaning process and equipment for food utensil non-stick coating |
| CN113787060A (en) * | 2021-09-07 | 2021-12-14 | 高峰 | Steel sheet surface treatment device and steel sheet surface treatment method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02263589A (en) * | 1989-04-03 | 1990-10-26 | Osaka Prefecture | Method and apparatus for laser beam machining surface of metal |
| CN101774144A (en) * | 2010-02-24 | 2010-07-14 | 华中科技大学 | Automatic burnishing and polishing machine for stone sidelines |
| CN203697155U (en) * | 2014-01-18 | 2014-07-09 | 梁建佳 | Automatic plate cutting device |
| CN205341493U (en) * | 2015-11-02 | 2016-06-29 | 吕石君 | Magnetism adsorbs steel sheet cold rolling mill |
| CN106132846A (en) * | 2014-03-31 | 2016-11-16 | 林肯环球股份有限公司 | With circulating ring conveyer and the laser workstation of coordinated maintenance door |
| CN107160044A (en) * | 2017-07-24 | 2017-09-15 | 东莞市盛雄激光设备有限公司 | A kind of large-breadth plates laser etching machine |
| CN108472767A (en) * | 2015-12-22 | 2018-08-31 | 安赛乐米塔尔公司 | With by oblique laser beam go removing coating for manufacturing the method for precoat metal plate and corresponding metallic plate |
| CN208195936U (en) * | 2018-05-21 | 2018-12-07 | 南京先进激光技术研究院 | A kind of laser removes coating procedure coaxial monitoring device |
| CN208304154U (en) * | 2018-03-28 | 2019-01-01 | 东莞市中电爱华电子有限公司 | A kind of laser removes the device of spray coating |
| CN208543082U (en) * | 2018-06-15 | 2019-02-26 | 惠州市诚业家具有限公司 | Laser soldering device |
| CN109465251A (en) * | 2018-11-23 | 2019-03-15 | 惠州锂威新能源科技有限公司 | A kind of technique and device for removing pole coating |
| CN109909619A (en) * | 2019-04-17 | 2019-06-21 | 大族激光科技产业集团股份有限公司 | A kind of laser process equipment removing filter coating |
-
2019
- 2019-12-18 CN CN201911306023.4A patent/CN110977175B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02263589A (en) * | 1989-04-03 | 1990-10-26 | Osaka Prefecture | Method and apparatus for laser beam machining surface of metal |
| CN101774144A (en) * | 2010-02-24 | 2010-07-14 | 华中科技大学 | Automatic burnishing and polishing machine for stone sidelines |
| CN203697155U (en) * | 2014-01-18 | 2014-07-09 | 梁建佳 | Automatic plate cutting device |
| CN106132846A (en) * | 2014-03-31 | 2016-11-16 | 林肯环球股份有限公司 | With circulating ring conveyer and the laser workstation of coordinated maintenance door |
| CN205341493U (en) * | 2015-11-02 | 2016-06-29 | 吕石君 | Magnetism adsorbs steel sheet cold rolling mill |
| CN108472767A (en) * | 2015-12-22 | 2018-08-31 | 安赛乐米塔尔公司 | With by oblique laser beam go removing coating for manufacturing the method for precoat metal plate and corresponding metallic plate |
| CN107160044A (en) * | 2017-07-24 | 2017-09-15 | 东莞市盛雄激光设备有限公司 | A kind of large-breadth plates laser etching machine |
| CN208304154U (en) * | 2018-03-28 | 2019-01-01 | 东莞市中电爱华电子有限公司 | A kind of laser removes the device of spray coating |
| CN208195936U (en) * | 2018-05-21 | 2018-12-07 | 南京先进激光技术研究院 | A kind of laser removes coating procedure coaxial monitoring device |
| CN208543082U (en) * | 2018-06-15 | 2019-02-26 | 惠州市诚业家具有限公司 | Laser soldering device |
| CN109465251A (en) * | 2018-11-23 | 2019-03-15 | 惠州锂威新能源科技有限公司 | A kind of technique and device for removing pole coating |
| CN109909619A (en) * | 2019-04-17 | 2019-06-21 | 大族激光科技产业集团股份有限公司 | A kind of laser process equipment removing filter coating |
Non-Patent Citations (2)
| Title |
|---|
| 中国轻工总会: "《轻工业技术装备手册》", 30 August 1997 * |
| 李志远 钱乙余 张九海等: "《先进连接方法》", 30 June 2000 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673622A (en) * | 2020-06-01 | 2020-09-18 | 江苏佰健环保科技有限公司 | Environment-friendly cleaning process and equipment for food utensil non-stick coating |
| CN113787060A (en) * | 2021-09-07 | 2021-12-14 | 高峰 | Steel sheet surface treatment device and steel sheet surface treatment method |
| CN113787060B (en) * | 2021-09-07 | 2022-11-11 | 高峰 | Steel plate surface treatment device and steel plate surface treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110977175B (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110977175B (en) | Steel plate coating removing equipment and method | |
| CN106903432B (en) | Based on the laser assembly solder device and its control method rolled with weldering | |
| JP2011082184A (en) | Method and device for removing coating from area of glass plate | |
| US20160368084A1 (en) | Working apparatus | |
| CN112090866A (en) | Device and method for cleaning radar finish paint of composite material of airplane by laser | |
| CN113909678B (en) | Welding system and surface treatment method for aluminum alloy laser welding | |
| CN105817781B (en) | A kind of trackless Multifunctional welding welding system | |
| CN111139420A (en) | Intelligent thermal spraying device | |
| CN117983462A (en) | Intelligent coating assembly line and method for lithium battery | |
| CN207413702U (en) | A kind of flush coater for having both cleaning function | |
| CN109065953A (en) | A kind of lithium battery fully-automatic supersonic bonding machine | |
| CN219379344U (en) | Universal laser connecting device for metal product processing | |
| JP4616373B2 (en) | Laser processing machine | |
| CN218514564U (en) | Plasma surface treatment device capable of treating various curved surfaces | |
| CN115229212B (en) | Device and method for processing composite additive by synchronous laser cleaning and polishing of broadband laser cladding | |
| CN103480539A (en) | Anti-oxidation spraying device and method for anode carbon block for aluminum electrolysis | |
| CN110883444A (en) | Building core welding equipment | |
| CN211564956U (en) | Building core board positioning device and building core board welding equipment with same | |
| CN217110829U (en) | Welding seam three-dimensional shape detection system based on single-stripe structure optical vision sensing | |
| CN214443795U (en) | Quartz wafer processing sealing welding machine convenient for cooling and heat dissipation | |
| JP6586025B2 (en) | Thermal spraying equipment | |
| CN212375356U (en) | Thermal spraying equipment for plane products | |
| CN221789823U (en) | Lithium battery surface treatment coating equipment | |
| CN211564891U (en) | Building core welding equipment | |
| CN212370469U (en) | Plane thermal spraying device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |