CN111790987A - Laser welding equipment and welding control method thereof - Google Patents

Laser welding equipment and welding control method thereof Download PDF

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Publication number
CN111790987A
CN111790987A CN202010768776.3A CN202010768776A CN111790987A CN 111790987 A CN111790987 A CN 111790987A CN 202010768776 A CN202010768776 A CN 202010768776A CN 111790987 A CN111790987 A CN 111790987A
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motor
linear sliding
sliding table
plc
laser welding
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CN202010768776.3A
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CN111790987B (en
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郭凤双
张帅
郭峙江
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Hengshi Langfang Precision Machinery Manufacturing Co ltd
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Hengshi Langfang Precision Machinery Manufacturing Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses laser welding equipment and a welding control method thereof, wherein the laser welding equipment comprises a laser assembly, a PLC (programmable logic controller) and a tool assembly matched with the laser assembly, wherein the tool assembly comprises a base, a first linear sliding table is arranged on the base, a clamping mechanism is connected onto the first linear sliding table, a second linear sliding table is also arranged on the base, the first linear sliding table is parallel to the second linear sliding table, and a feeding mechanism matched with the clamping mechanism is arranged on the second linear sliding table; a first signal output end of the PLC is connected with a signal input end of the first linear sliding table, and a second signal output end of the PLC is connected with a signal input end of the second linear sliding table. The automatic laser welding machine can automatically and accurately weld, improves the welding efficiency, ensures the welding quality, reduces the labor amount, reduces the dust suction and reduces the personal injury to welding personnel through automatic laser welding.

Description

Laser welding equipment and welding control method thereof
Technical Field
The invention relates to the technical field of laser welding, in particular to laser welding equipment and a welding control method thereof.
Background
Generally adopt manual welding mode to weld each part that will need the welded together in the existing market, this kind of welding mode has a lot of problems, and manual welding is efficient firstly, and second the quality is not well controlled, and third manual welding can produce the dust and inhale internally, influences that the welder is healthy. Although there are some laser welding devices at present, these laser welding devices are inaccurate in welding precision, cannot realize automatic welding, and are low in welding efficiency.
Disclosure of Invention
In order to overcome the above problems or at least partially solve the above problems, embodiments of the present invention provide a laser welding apparatus and a welding control method thereof, which can perform automatic and precise welding, improve welding efficiency, ensure welding quality, reduce labor amount, reduce dust inhalation, and reduce personal injury to welding personnel through laser welding.
The embodiment of the invention is realized by the following steps:
a laser welding device comprises a laser assembly, a PLC (programmable logic controller) and a tool assembly matched with the laser assembly, wherein the tool assembly comprises a base, a first linear sliding table is arranged on the base, a clamping mechanism is connected onto the first linear sliding table, a second linear sliding table is also arranged on the base, the first linear sliding table is parallel to the second linear sliding table, and a feeding mechanism matched with the clamping mechanism is arranged on the second linear sliding table;
a first signal output end of the PLC is connected with a signal input end of the first linear sliding table, and a second signal output end of the PLC is connected with a signal input end of the second linear sliding table.
The working principle of the laser welding equipment is as follows:
the laser component of the equipment adopts laser equipment with the model number of FW300, when materials need to be welded, firstly, manually placing the material to be welded on a feeding mechanism, after the material is placed, a starting signal is sent to a motor of the second linear sliding table through the PLC controller, the second linear sliding table is controlled to drive the feeding mechanism to move leftwards, so that the feeding mechanism is aligned with the clamping mechanism, the material to be welded on the feeding mechanism is clamped through the matching of the clamping mechanism and the feeding mechanism, then a starting signal is sent to the first linear sliding table through the PLC, the first linear sliding table is controlled to drive the clamping mechanism and the feeding mechanism to translate rightwards to a laser welding position to weld the material, and after welding is completed, the PLC controls the first linear sliding table to drive the clamping mechanism and the feeding mechanism to translate leftwards and return to 10-15mm to make a previous steel strip distance; this process is repeated until the weld reaches the desired size. This equipment cooperates through frock subassembly and laser equipment and can carry out automatic accurate welding, improves welding efficiency, guarantees welding quality, and through the cooperation of PLC controller, first straight line slip table, second straight line slip table, clamping mechanism, feed mechanism in the frock subassembly, can improve automatic effect, reduces the work load, and reduction personnel dust inhales, reduces the bodily injury to welding personnel.
In some embodiments of the invention, the clamping mechanism includes a bottom plate, wherein both side edges of the bottom plate are provided with third linear sliding tables, the third linear sliding tables are perpendicular to the first linear sliding table, a first clamping plate is arranged between the third linear sliding tables, both ends of the first clamping plate are respectively provided with a support frame, the two support frames are connected with the third linear sliding tables, and the bottom plate is further provided with a second clamping plate matched with the first clamping plate.
In some embodiments of the present invention, a laser welding apparatus includes a first linear sliding table including a first motor and a first guide rail, the first guide rail having a first lead screw provided thereon, the first lead screw having a first slider provided thereon, an output shaft of the first motor being connected to the first lead screw, the first slider being connected to a base plate; the second linear sliding table comprises a second motor and a second guide rail, a second screw rod is arranged on the second guide rail, a second sliding block is arranged on the second screw rod, an output shaft of the second motor is connected with the second screw rod, and the second sliding block is connected with the feeding mechanism; the third linear sliding table comprises a third motor and a third guide rail, a third lead screw is arranged on the third guide rail, a third sliding block is arranged on the third lead screw, an output shaft of the third motor is connected with the third lead screw, and the third sliding block is connected with the supporting frame.
In some embodiments of the present invention, a laser welding apparatus further comprises a PLC controller, a first signal output terminal of the PLC controller is connected with a signal input terminal of the first motor, a second signal output terminal of the PLC controller is connected with a signal input terminal of the second motor, and a third signal output terminal of the PLC controller is connected with a signal input terminal of the third motor.
In some embodiments of the present invention, a laser welding apparatus includes a spring coupled between a first clamp plate and a second clamp plate.
In some embodiments of the present invention, a laser welding apparatus includes a guard plate disposed on a side of a second clamping plate remote from a first clamping plate.
In some embodiments of the present invention, the feeding mechanism includes a material supporting plate, a first blocking plate cooperating with the second clamping plate is disposed on one side of the material supporting plate, and the material supporting plate is connected to the second sliding block.
A welding control method of a laser welding apparatus includes the steps of:
presetting control parameters of a PLC (programmable logic controller);
after the feeding is finished, a starting signal is sent to the second motor through the PLC, the second motor is controlled to be started, and the feeding mechanism is driven to move to a position flush with the clamping mechanism;
after the preset time is reached, a starting signal is sent to a third motor through a PLC controller, the third motor is controlled to be started, and the first clamping plate and the second clamping plate are driven to move to positions attached to the materials;
and acquiring an in-place signal, sending a starting signal to the first motor through the PLC, controlling the first motor to start, and driving the clamping mechanism and the feeding mechanism to move to a laser welding position.
When laser welding is required, firstly, setting control parameters of a PLC (programmable logic controller) for each motor, manually placing materials to be welded on a feeding mechanism, after the feeding is finished, sending a starting signal to a second motor of a second sliding table through the PLC, controlling the second motor to start, driving a second linear sliding table to drive the feeding mechanism to move leftwards, aligning the feeding mechanism with a clamping mechanism, after the feeding mechanism is aligned with the clamping mechanism after a preset time is reached, sending a starting signal to a third motor of a third sliding table of the clamping mechanism through the PLC, controlling the third motor to start, driving a first clamping plate and a second clamping plate to move to positions attached to the materials, clamping the materials on the feeding mechanism through the first clamping plate and the second clamping plate, and acquiring in-place signals (after the materials are clamped, the preset time is reached, acquiring in-place signals namely time in-place signals), then a starting signal is sent to a first motor of the first linear sliding table through the PLC, and the first linear sliding table is controlled to drive the clamping mechanism and the feeding mechanism to move rightwards to the laser welding position to weld the materials. Carry out automated control through the PLC controller, can improve automatic effect, reduce the work load, reduce personnel's dust and inhale, reduce the bodily injury to welding personnel, improve welding efficiency.
In some embodiments of the present invention, a welding control method of a laser welding apparatus, further includes:
and acquiring a welding completion signal, sending a reverse signal to the first motor through the PLC, controlling the first motor to rotate reversely, and driving the clamping mechanism and the feeding mechanism to move reversely and return.
In some embodiments of the present invention, a welding control method of a laser welding apparatus, the control parameters include rotation speeds, operation times, and rotation directions of a first motor, a second motor, and a third motor, a start interval time between the second motor and the third motor, and a start interval time between the third motor and the first motor.
The embodiment of the invention at least has the following advantages or beneficial effects:
the laser component of the equipment adopts laser equipment with the model number of FW300, when materials need to be welded, firstly, manually placing the material to be welded on a feeding mechanism, after the material is placed, a starting signal is sent to a motor of the second linear sliding table through the PLC controller, the second linear sliding table is controlled to drive the feeding mechanism to move leftwards, so that the feeding mechanism is aligned with the clamping mechanism, the material to be welded on the feeding mechanism is clamped through the matching of the clamping mechanism and the feeding mechanism, then a starting signal is sent to the first linear sliding table through the PLC, the first linear sliding table is controlled to drive the clamping mechanism and the feeding mechanism to translate rightwards to a laser welding position to weld the material, and after welding is completed, the PLC controls the first linear sliding table to drive the clamping mechanism and the feeding mechanism to translate leftwards and return to 10-15mm to make a previous steel strip distance; this process is repeated until the weld reaches the desired size. This equipment cooperates through frock subassembly and laser equipment and can carry out automatic accurate welding, improves welding efficiency, guarantees welding quality, and through the cooperation of first straight line slip table, second straight line slip table, clamping mechanism, feed mechanism among PLC controller and the frock subassembly, can improve automatic effect, reduces the work load, and reduction personnel dust inhales, reduces the bodily injury to welding personnel.
The welding control method comprises setting control parameters of a PLC controller for each motor, manually placing materials to be welded on a feeding mechanism, sending start signal to a second motor of a second sliding table through the PLC controller after feeding is completed, controlling the second motor to start, driving a second linear sliding table to drive the feeding mechanism to move leftwards, aligning the feeding mechanism with a clamping mechanism, sending start signal to a third motor of a third sliding table of the clamping mechanism through the PLC controller after preset time is reached, controlling the third motor to start, driving a first clamping plate and a second clamping plate to move to positions attached to the materials, clamping the materials on the feeding mechanism through the first clamping plate and the second clamping plate, and obtaining in-place signals (after the materials are clamped, reaching the preset time, obtaining in-place signals namely time in-place signals), then a starting signal is sent to a first motor of the first linear sliding table through the PLC, and the first linear sliding table is controlled to drive the clamping mechanism and the feeding mechanism to move rightwards to the laser welding position to weld the materials. Carry out automated control through the PLC controller, can improve automatic effect, reduce the work load, reduce personnel's dust and inhale, reduce the bodily injury to welding personnel, improve welding efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a perspective structural view of a laser welding apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a laser welding apparatus according to an embodiment of the present invention;
fig. 3 is a flowchart of a welding control method of a laser welding apparatus according to an embodiment of the present invention.
Icon: 100-a base; 200-a first linear slide; 201-a first motor; 300-a second linear slide; 301-a second motor; 400-a third linear slide table; 401-a third electric machine; 500-a base plate; 600-a first splint; 700-a second splint; 701-a guard plate; 800-a support frame; 900-a feeding mechanism; 110-a PLC controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "left", "right", "horizontal", etc. are used for indicating the orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships which the products of the present invention are usually placed in when the products of the present invention are used, the orientations or positional relationships are only used for facilitating the description of the present invention and simplifying the description, and the terms do not indicate or imply that the devices or the elements which are referred to must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the appearance of the term "horizontal" or the like does not require that the components be absolutely horizontal or vertical, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
As shown in fig. 1-2, the embodiment provides a laser welding apparatus, which includes a laser assembly, a PLC controller 110, and a tooling assembly cooperating with the laser assembly, where the tooling assembly includes a base 100, the base 100 is provided with a first linear sliding table 200, the first linear sliding table 200 is connected with a clamping mechanism, the base 100 is further provided with a second linear sliding table 300, the first linear sliding table 200 is parallel to the second linear sliding table 300, and the second linear sliding table 300 is provided with a feeding mechanism 900 cooperating with the clamping mechanism;
a first signal output end of the PLC controller 110 is connected to a signal input end of the first linear sliding table 200, and a second signal output end of the PLC controller 110 is connected to a signal input end of the second linear sliding table 300.
The working principle of the laser welding equipment is as follows:
the laser assembly of the device adopts laser equipment with the model of FW300, the PLC controller 110 can adopt a controller with the model of ASD-A2-3043-M, when materials need to be welded, firstly, the materials to be welded are placed on the feeding mechanism 900 manually, after the materials are placed, a starting signal is sent to a motor of the second linear sliding table 300 through the PLC controller 110, the second linear sliding table 300 is controlled to drive the feeding mechanism 900 to move leftwards, so that the feeding mechanism 900 is aligned with the clamping mechanism, the materials to be welded on the feeding mechanism 900 are clamped through the matching of the clamping mechanism and the feeding mechanism 900, then, a starting signal is sent to the first linear sliding table 200 through the PLC controller 110, the first linear sliding table 200 is controlled to drive the clamping mechanism and the feeding mechanism 900 to move rightwards to the laser welding position to weld the materials, and after the welding is finished, the first linear sliding table 200 is controlled through the PLC controller 110 to drive the clamping mechanism and the feeding mechanism to move leftwards 900 to move horizontally Returning to 10-15mm to make the last steel strip distance; this process is repeated until the weld reaches the desired size. This equipment cooperates through frock subassembly and laser equipment and can carry out automatic accurate welding, improves welding efficiency, guarantees welding quality, and through the cooperation of PLC controller 110, first straight line slip table 200, second straight line slip table 300, clamping mechanism, feed mechanism 900 in the frock subassembly, can improve automatic effect, reduces the work load, and the reduction personnel dust inhales, reduces the bodily injury to welding personnel.
In some embodiments of the present invention, the clamping mechanism includes a bottom plate 500, third linear sliding tables 400 are respectively disposed on two sides of the bottom plate 500, the third linear sliding tables 400 are perpendicular to the first linear sliding table 200, a first clamping plate 600 is disposed between the third linear sliding tables 400, two ends of the first clamping plate 600 are respectively provided with a supporting frame 800, the two supporting frames 800 are connected with the third linear sliding tables 400, and a second clamping plate 700 matched with the first clamping plate 600 is further disposed on the bottom plate 500.
When the material is welded and clamped, the third linear sliding table 400 arranged on the left side and the right side of the bottom plate 500 of the clamping mechanism pushes the support frame 800 arranged on the bottom plate to move horizontally forward (to the direction close to the material), and then pushes the first clamping plate 600, the first clamping plate 600 and the second clamping plate 700 are fixed through a harness cord, the second clamping plate 700 is pushed to be attached to the material on the feeding mechanism 900, the material to be welded on the feeding mechanism 900 is clamped tightly through the first clamping plate 600 and the second clamping plate 700, the material is prevented from shifting in the welding process, and the welding effect is improved.
In some embodiments of the present invention, the first linear sliding table 200 includes a first motor 201 and a first guide rail, a first lead screw is disposed on the first guide rail, a first slide block is disposed on the first lead screw, an output shaft of the first motor 201 is connected to the first lead screw, and the first slide block is connected to the bottom plate 500; the second linear sliding table 300 comprises a second motor 301 and a second guide rail, a second lead screw is arranged on the second guide rail, a second sliding block is arranged on the second lead screw, an output shaft of the second motor 301 is connected with the second lead screw, and the second sliding block is connected with the feeding mechanism 900; the third linear sliding table 400 comprises a third motor 401 and a third guide rail, a third lead screw is arranged on the third guide rail, a third sliding block is arranged on the third lead screw, an output shaft of the third motor 401 is connected with the third lead screw, and the third sliding block is connected with the supporting frame 800.
The second motor 301 of the second sliding table drives the second lead screw to rotate, and then drives the second slider to move along the length direction of the second guide rail, so that the second slider drives the feeding mechanism 900 to move to be flush with the clamping mechanism, then two third motors 401 of the third linear sliding table 400 simultaneously rotate in the same direction and further drive two third lead screws to rotate, drive two third sliders to push the support frame 800 to move close to the feeding mechanism 900, the material on the feeding mechanism 900 is clamped through a first clamp plate 600 connected between the two support frames 800 and a second clamp plate 700 matched with the first clamp plate 600, after the material is clamped, the first motor 201 of the first sliding table drives the first lead screw to rotate, so that the slider on the first lead screw slides rightwards along the length direction of the guide rail, and further drives the clamping mechanism and the feeding mechanism 900 to slide rightwards to the laser welding position, after welding is completed, the first motor 201 rotates reversely to drive the clamping mechanism and the feeding mechanism 900 to move leftwards and move backwards to move backwards And (6) returning.
In some embodiments of the present invention, as shown in fig. 2, a first signal output terminal of the PLC controller 110 is connected to a signal input terminal of the first motor 201, a second signal output terminal of the PLC controller 110 is connected to a signal input terminal of the second motor 301, and a third signal output terminal of the PLC controller 110 is connected to a signal input terminal of the third motor 401.
The PLC controller 110 may adopt a controller with model ASD-a2-3043-M, and a control program for the first motor 201, the second motor 301, and the two third motors 401 is preset inside the PLC controller 110, when a material needs to be conveyed, the PLC controller 110 sends a start signal to the second motor 301, the second motor 301 starts to operate immediately after receiving the signal, the PLC controller 110 sends a control signal to the two third motors 401, the two third motors 401 start to operate immediately after receiving the signal, and further drive the first clamping plate 600 and the second clamping plate 700 to move to the material position, clamp the material, and then send a start signal to the first motor 201 through the PLC controller 110, the first motor 201 starts to operate immediately after receiving the signal, and drive the clamping mechanism and the feeding mechanism 900 on the bottom plate 500 to move to the laser welding position to weld the material, after welding, a reverse rotation signal is sent to the first motor 201 through the PLC 110, the first motor 201 is controlled to rotate reversely, and the clamping mechanism and the feeding mechanism 900 are driven to move back by 10-15mm to make the distance of the previous steel strip; this process is repeated until the weld reaches the desired size. Control through PLC controller 110, improve automatic effect, and then improve laser welding's work efficiency, guarantee welding quality simultaneously.
In some embodiments of the present invention, a spring is connected between the first clamping plate 600 and the second clamping plate 700.
A spring is connected between the first clamping plate 600 and the second clamping plate 700, so that the feeding mechanism 900 on the right side can be effectively prevented from being impacted by improper advancing positions of the first clamping plate 600 and the second clamping plate 700, and a force unloading effect can be achieved through the spring; meanwhile, the aligning and leveling function can be achieved through the springs, so that the first clamping plate 600 and the second clamping plate 700 are attached to the feeding mechanism 900 to be flush.
In some embodiments of the present invention, a guard plate 701 is disposed on the second clamping plate 700 on a side away from the first clamping plate 600.
The second clamping plate is protected through the protection plate 701, the second clamping plate 700 is prevented from being affected during welding, and the service life of the second clamping plate 700 is prolonged.
In some embodiments of the present invention, the feeding mechanism 900 includes a retainer plate, a first baffle plate is disposed on one side of the retainer plate and is engaged with the second clamping plate 700, and the retainer plate is connected with the second sliding block.
The material is consigned through the material supporting plate, and the material is prevented from shifting through the first baffle.
As shown in fig. 3, a welding control method of a laser welding apparatus includes the steps of:
presetting control parameters of the PLC 110;
after the feeding is finished, a starting signal is sent to the second motor 301 through the PLC 110, the second motor 301 is controlled to be started, and the feeding mechanism 900 is driven to move to a position flush with the clamping mechanism;
after the preset time is reached, a starting signal is sent to the third motor 401 through the PLC 110, the third motor 401 is controlled to be started, and the first clamping plate 600 and the second clamping plate 700 are driven to move to positions where the first clamping plate and the second clamping plate are attached to the material;
and acquiring a position signal, sending a starting signal to the first motor 201 through the PLC 110, controlling the first motor 201 to start, and driving the clamping mechanism and the feeding mechanism 900 to move to a laser welding position.
When laser welding is required, firstly, the control parameters of the PLC 110 for each motor are set, materials to be welded are manually placed on the feeding mechanism 900, after the feeding is finished, a starting signal is sent to the second motor 301 of the second sliding table through the PLC 110, the second motor 301 is controlled to be started, the second linear sliding table 300 is driven to drive the feeding mechanism 900 to move leftwards, the feeding mechanism 900 is aligned with the clamping mechanism, after the preset time is reached, namely the feeding mechanism 900 is aligned with the clamping mechanism, a starting signal is sent to the third motor 401 of the third sliding table of the clamping mechanism through the PLC 110, the third motor 401 is controlled to be started, the first clamping plate 600 and the second clamping plate 700 are driven to move to the position where the materials are attached, the materials on the feeding mechanism 900 are clamped through the first clamping plate 600 and the second clamping plate 700, and an in-place signal is obtained (after the materials are clamped, when the preset time is reached, the in-place signal, that is, the time in-place signal, is obtained), and then a start signal is sent to the first motor 201 of the first linear sliding table 200 through the PLC controller 110, so that the first linear sliding table 200 is controlled to drive the clamping mechanism and the feeding mechanism 900 to move rightward to a laser welding position to weld the material. Carry out automated control through PLC controller 110, can improve automatic effect, reduce the work load, reduce personnel's dust and inhale, reduce the bodily injury to welding personnel, improve welding efficiency.
In some embodiments of the present invention, the welding control method of the laser welding apparatus further includes the steps of:
and acquiring a welding completion signal, sending a reverse signal to the first motor 201 through the PLC 110, controlling the first motor 201 to rotate reversely, and driving the clamping mechanism and the feeding mechanism 900 to move reversely and return.
After welding, a reverse rotation signal is sent to the first motor 201 through the PLC 110, the first motor 201 is controlled to rotate reversely, and the clamping mechanism and the feeding mechanism 900 are driven to move back by 10-15mm to make the distance of the previous steel strip; this process is repeated until the weld reaches the desired size.
In some embodiments of the present invention, the control parameters include the rotational speed, running time and rotational direction of the first motor 201, the second motor 301, the third motor 401, the start-up interval between the second motor 301 and the third motor 401, and the start-up interval between the third motor 401 and the first motor 201.
In summary, the embodiment of the present invention provides a laser welding apparatus and a welding control method thereof, a laser assembly of the apparatus adopts a laser apparatus with model FW300, when a material needs to be welded, the material to be welded is firstly placed on a feeding mechanism 900 by a person, after the material is placed, a start signal is sent to a motor of a second linear sliding table 300 through a PLC controller 110, the second linear sliding table 300 is controlled to drive the feeding mechanism 900 to move leftward, so that the feeding mechanism 900 is aligned with a clamping mechanism, the material to be welded on the feeding mechanism 900 is clamped through the cooperation of the clamping mechanism and the feeding mechanism 900, then a start signal is sent to a first linear sliding table 200 through the PLC controller 110, the first linear sliding table 200 is controlled to drive the clamping mechanism and the feeding mechanism 900 to translate rightward to a laser welding position to weld the material, and after the welding is completed, the first linear sliding table 200 is controlled by the PLC controller 110 to drive the clamping mechanism and the feeding mechanism 900 to translate leftward Returning to 10-15mm to make the last steel strip distance; this process is repeated until the weld reaches the desired size. This equipment cooperates through frock subassembly and laser equipment and can carry out automatic accurate welding, improves welding efficiency, guarantees welding quality, and through the cooperation of first straight line slip table 200, second straight line slip table 300, clamping mechanism, feed mechanism 900 among PLC controller 110 and the frock subassembly, can improve automatic effect, reduces the work load, and the reduction personnel dust inhales, reduces the bodily injury to welding personnel. The welding control method comprises the steps of firstly setting control parameters of the PLC 110 for each motor, manually placing materials to be welded on the feeding mechanism 900, after the feeding is finished, sending a starting signal to the second motor 301 of the second sliding table through the PLC 110, controlling the second motor 301 to start, driving the second linear sliding table 300 to drive the feeding mechanism 900 to move leftwards, enabling the feeding mechanism 900 to be aligned with the clamping mechanism, after the preset time is reached, namely after the feeding mechanism 900 is aligned with the clamping mechanism, sending a starting signal to the third motor 401 of the third sliding table of the clamping mechanism through the PLC 110, controlling the third motor 401 to start, driving the first clamping plate 600, fixing the first clamping plate 600 and the second clamping plate 700 through a through wire, pushing the second clamping plate 700 to a material attaching position on the feeding mechanism 900, and clamping the materials on the feeding mechanism 900 through the first clamping plate 600 and the second clamping plate 700, the signal that targets in place is obtained (after the material is clamped, the preset time is reached, the signal that targets in place, that is, the signal that the time targets in place is obtained), then a starting signal is sent to the first motor 201 of the first linear sliding table 200 through the PLC 110, and the first linear sliding table 200 is controlled to drive the clamping mechanism and the feeding mechanism 900 to move rightwards to the laser welding position to weld the material. Carry out automated control through PLC controller 110, can improve automatic effect, reduce the work load, reduce personnel's dust and inhale, reduce the bodily injury to welding personnel, improve welding efficiency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A laser welding device comprises a laser assembly and is characterized by further comprising a PLC (programmable logic controller) and a tool assembly matched with the laser assembly, wherein the tool assembly comprises a base, a first linear sliding table is arranged on the base, a clamping mechanism is connected onto the first linear sliding table, a second linear sliding table is further arranged on the base, the first linear sliding table is parallel to the second linear sliding table, and a feeding mechanism matched with the clamping mechanism is arranged on the second linear sliding table;
and a first signal output end of the PLC is connected with a signal input end of the first linear sliding table, and a second signal output end of the PLC is connected with a signal input end of the second linear sliding table.
2. The laser welding device according to claim 1, wherein the clamping mechanism comprises a bottom plate, wherein third linear sliding tables are arranged on two side edges of the bottom plate, the third linear sliding tables are perpendicular to the first linear sliding tables, a first clamping plate is arranged between the third linear sliding tables, two ends of the first clamping plate are respectively provided with a supporting frame, the two supporting frames are connected with the third linear sliding tables, and a second clamping plate matched with the first clamping plate is further arranged on the bottom plate.
3. The laser welding device according to claim 2, wherein the first linear sliding table comprises a first motor and a first guide rail, a first lead screw is arranged on the first guide rail, a first slide block is arranged on the first lead screw, an output shaft of the first motor is connected with the first lead screw, and the first slide block is connected with the bottom plate; the second linear sliding table comprises a second motor and a second guide rail, a second lead screw is arranged on the second guide rail, a second sliding block is arranged on the second lead screw, an output shaft of the second motor is connected with the second lead screw, and the second sliding block is connected with the feeding mechanism; the third linear sliding table comprises a third motor and a third guide rail, a third lead screw is arranged on the third guide rail, a third sliding block is arranged on the third lead screw, an output shaft of the third motor is connected with the third lead screw, and the third sliding block is connected with the supporting frame.
4. A laser welding apparatus as recited in claim 3, wherein a first signal output of the PLC controller is connected to a signal input of the first motor, a second signal output of the PLC controller is connected to a signal input of the second motor, and a third signal output of the PLC controller is connected to a signal input of the third motor.
5. A laser welding apparatus as recited in claim 2, wherein a spring is connected between said first clamping plate and said second clamping plate.
6. The laser welding apparatus according to claim 2, wherein a guard plate is provided on a side of the second clamping plate remote from the first clamping plate.
7. The laser welding device according to claim 3, wherein the feeding mechanism comprises a retainer plate, a first baffle plate matched with the second clamping plate is arranged on one side of the retainer plate, and the retainer plate is connected with the second sliding block.
8. A welding control method of a laser welding apparatus according to any one of claims 1 to 7, characterized by comprising the steps of:
presetting control parameters of a PLC (programmable logic controller);
after the feeding is finished, a starting signal is sent to the second motor through the PLC, the second motor is controlled to be started, and the feeding mechanism is driven to move to a position flush with the clamping mechanism;
after the preset time is reached, a starting signal is sent to a third motor through a PLC controller, the third motor is controlled to be started, and the first clamping plate and the second clamping plate are driven to move to positions attached to the materials;
and acquiring an in-place signal, sending a starting signal to the first motor through the PLC, controlling the first motor to start, and driving the clamping mechanism and the feeding mechanism to move to a laser welding position.
9. The welding control method of a laser welding apparatus according to claim 8, characterized by further comprising the steps of:
and acquiring a welding completion signal, sending a reverse signal to the first motor through the PLC, controlling the first motor to rotate reversely, and driving the clamping mechanism and the feeding mechanism to move reversely and return.
10. The welding control method of a laser welding apparatus according to claim 8, wherein the control parameters include a rotation speed, an operation time, and a rotation direction of the first motor, the second motor, and the third motor, a start interval time between the second motor and the third motor, and a start interval time between the third motor and the first motor.
CN202010768776.3A 2020-08-03 2020-08-03 Laser welding equipment and welding control method thereof Active CN111790987B (en)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
CN104148857A (en) * 2014-08-06 2014-11-19 安徽省芜湖仪器仪表研究所 Positioning mechanism for welding of cellular board capable of guaranteeing uniformity of forced convection flow field
CN104191114A (en) * 2014-08-06 2014-12-10 安徽省芜湖仪器仪表研究所 Automatic cellular board spot welding machine for guaranteeing uniformity of forced convection flow field
CN206139985U (en) * 2016-10-18 2017-05-03 珠海市粤茂激光设备工程有限公司 Laser -beam welding machine of welding electric toothbrush motor
CN109014762A (en) * 2018-10-22 2018-12-18 刘海峰 A kind of metal pipe material welding equipment
CN209647885U (en) * 2018-11-26 2019-11-19 绍兴创新激光科技有限公司 A kind of sensor laser-beam welding machine
CN210937682U (en) * 2019-12-03 2020-07-07 山东轴研精密轴承有限公司 Automatic feeding and discharging laser marking device for bearing ring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104148857A (en) * 2014-08-06 2014-11-19 安徽省芜湖仪器仪表研究所 Positioning mechanism for welding of cellular board capable of guaranteeing uniformity of forced convection flow field
CN104191114A (en) * 2014-08-06 2014-12-10 安徽省芜湖仪器仪表研究所 Automatic cellular board spot welding machine for guaranteeing uniformity of forced convection flow field
CN206139985U (en) * 2016-10-18 2017-05-03 珠海市粤茂激光设备工程有限公司 Laser -beam welding machine of welding electric toothbrush motor
CN109014762A (en) * 2018-10-22 2018-12-18 刘海峰 A kind of metal pipe material welding equipment
CN209647885U (en) * 2018-11-26 2019-11-19 绍兴创新激光科技有限公司 A kind of sensor laser-beam welding machine
CN210937682U (en) * 2019-12-03 2020-07-07 山东轴研精密轴承有限公司 Automatic feeding and discharging laser marking device for bearing ring

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