CN118951401B - Laser cutting and welding integrated machine for stainless steel thick plate - Google Patents
Laser cutting and welding integrated machine for stainless steel thick plate Download PDFInfo
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- CN118951401B CN118951401B CN202411433555.5A CN202411433555A CN118951401B CN 118951401 B CN118951401 B CN 118951401B CN 202411433555 A CN202411433555 A CN 202411433555A CN 118951401 B CN118951401 B CN 118951401B
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- 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
- B23K26/38—Removing material by boring or cutting
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- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
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- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
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- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure in an atmosphere of particular gases
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- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser cutting and welding integrated machine for a stainless steel thick plate, which relates to the technical field of stainless steel thick plate processing and comprises a control cabinet, an auxiliary cabinet fixedly arranged on the side edge of the control cabinet, and a control part arranged on the upper part and the inside of the control cabinet and used for controlling the operation of all electric elements on the integrated machine. The invention has the advantages that the focal position is changed by adopting a mode of simultaneously carrying out two-stage zooming operation, the focal position change amount of the convex lens on the lens mounting frame II is more in the displacement travel range of the lens mounting frame II, thereby cutting and welding the stainless steel thick plate with the thickness larger than the displacement travel range of the lens mounting frame II, simultaneously, the angle of the jet head and the pressure of the ejected gas can be automatically regulated in the process of regulating the focal point, the intersection point of the focal point and the ejected gas of the jet head is ensured to be positioned at the position to be cut and welded, and the protection efficiency of inert gas is improved.
Description
Technical Field
The invention relates to the technical field of stainless steel thick plate processing, in particular to a laser cutting and welding integrated machine for a stainless steel thick plate.
Background
Stainless steel is a common metal alloy, has the characteristics of corrosion resistance, high temperature resistance and attractive appearance, is widely applied to a plurality of fields, and is formed by cutting and welding stainless steel thick plates in various shapes due to different requirements on the shapes of the stainless steel due to different use scenes when being used in various fields.
Along with development of science and technology, welding and cutting of stainless steel have now been realized in the integration, can accomplish two kinds of operations on same cutting welding all-in-one, have improved the machining efficiency of stainless steel, and this kind of equipment mostly adopts laser cutting and welding, and as bulletin number CN111590213B discloses an automatic focusing high-efficient laser cutting device, it includes the casing, casing top fixedly connected with laser transmission equipment, laser transmission equipment bottom fixedly connected with flexible hose, flexible hose bottom fixedly connected with laser coupling equipment, laser coupling equipment bottom fixedly connected with cutting head, laser coupling equipment outside is fixed and is equipped with adjustment mechanism.
This high-efficient laser cutting device of automatic focusing moves through detecting the ball, then drives the trigger piece and moves up to make the trigger piece can trigger and dab the switch, thereby utilize the distance that moves up to trigger every and dab the switch, realize utilizing a plurality of dab the switch to control the power of cutting head, thereby carry out the regulation of cutting degree, can detect the thickness of work piece and the local height of work piece through detecting the ball, thereby can make the cutting more regular.
However, when the automatic focusing high-efficiency laser cutting device is specifically used, the displacement amount of the optical lens is controlled during switching, so that the focus of the optical lens is changed, and therefore, the optical lens can only move in the stroke of the displacement amount of the detection ball because the displacement amount of the detection ball is fixed, the change amount of the focus of the optical lens is consistent with the displacement amount of the detection ball, a certain limitation exists, the cutting operation cannot be performed on a stainless steel thick plate with the thickness exceeding the displacement amount of the detection ball, meanwhile, the angle and the pressure of inert gas in the automatic focusing high-efficiency laser cutting device are not changed because the focus of the optical lens is changed, and the protection effect on the welded cutting part is poor.
Therefore, the novel stainless steel thick plate laser cutting and welding integrated machine can be adopted to solve the defects in the prior art.
Disclosure of Invention
The invention aims to solve the problems of limited zoom range and poor inert gas protection effect in the prior art, and provides a laser cutting and welding integrated machine for a stainless steel thick plate.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the laser cutting and welding integrated machine for the stainless steel thick plate comprises a control cabinet and an auxiliary cabinet fixedly arranged on the side edge of the control cabinet;
The control part is arranged at the upper part and the inside of the control cabinet and is used for controlling the operation of each electric element on the integrated machine, the control part comprises a control panel fixedly arranged at the top of the control cabinet, and a control system matched with the control panel is fixedly arranged in the control cabinet;
The placing part is arranged at the upper part and the inside of the auxiliary box and is used for placing the stainless steel thick plate, the placing part comprises a lifting table fixedly arranged at the top of the auxiliary box, a longitudinal displacement table is fixedly arranged at the top of the lifting table, a transverse displacement table is slidably arranged on the longitudinal displacement table, and a placing table is slidably arranged on the transverse displacement table;
the welding cutting part is arranged at the top and inside of the control cabinet and is used in cooperation with the placing table and used for cutting and welding the stainless steel thick plate, the welding cutting part comprises an inert gas cabin fixedly arranged at the top of the control cabinet, a gas supply source communicated with the inert gas cabin is fixedly arranged in the control cabinet, a cutting welding head is fixedly arranged at one end of the inert gas cabin, and the cutting welding head consists of a laser emitting component and an inert gas protection component.
Preferably, the laser emission component comprises an air guide head fixedly arranged at one end of the inert gas cabin, an output coupling cabin is fixedly arranged on the air guide head, and a first lens mounting frame and a second lens mounting frame are slidably arranged in the output coupling cabin;
the laser medium cabin is fixedly arranged at the top of the output coupling cabin, the excitation source is fixedly arranged at the top of the laser medium cabin, the output head is fixedly arranged at the bottom of the output coupling cabin, and the light beam adjusting mechanism is arranged between the first lens mounting frame and the second lens mounting frame.
Preferably, the focus adjustment mechanism comprises a fixed plate fixedly arranged on the side edge of the output coupling cabin, a first screw rod is rotatably arranged on the fixed plate through a rotating cylinder, a first nut is rotatably arranged on the first screw rod through threads, the first nut is fixedly connected with a second lens mounting frame, a motor is fixedly arranged on the fixed plate, and a driving end of the motor is connected with the first screw rod through a bevel gear set.
Preferably, the light beam adjusting mechanism comprises a screw rod II rotatably mounted on a lens mounting frame II, a nut II is rotatably mounted on the screw rod II in a threaded manner, the nut II is fixedly connected with the lens mounting frame I, and a linkage structure is mounted between the screw rod I and the screw rod II.
Preferably, the linkage structure comprises a first gear fixedly arranged on a first screw rod, a rotating sleeve is slidably arranged on a second screw rod through a sliding chute, the rotating sleeve is rotationally connected with the fixed plate, and a second gear meshed with the first gear is fixedly arranged on the rotating sleeve.
Preferably, the inert gas protection component comprises a booster, a transformer and a temperature rising device which are fixedly arranged on the side edge of the output coupling cabin, and the booster is communicated with the air guide head, the booster is communicated with the temperature rising device and the temperature rising device is communicated with the transformer through air guide pipes;
the output head is fixedly provided with a fixed ring, the fixed ring is rotatably provided with a plurality of jet heads, the output head is fixedly provided with an annular gas cabin, the annular gas cabin is communicated with the plurality of jet heads through gas guide hoses, the annular gas cabin is communicated with the temperature rising device through air pipes, and the annular gas cabin is provided with an angle adjusting mechanism matched with the plurality of jet heads.
Preferably, the angle adjusting mechanism comprises a sliding ring which is slidably arranged outside the annular gas cabin, a plurality of racks are fixedly arranged on the sliding ring, a rotating shaft is fixedly arranged on each jet head, each rotating shaft is rotationally connected with the fixing ring, a gear III meshed with the corresponding rack is fixedly arranged on each rotating shaft, and a driving part matched with the sliding ring is arranged on the output coupling cabin.
Preferably, the driving component comprises a fixed block fixedly mounted on the sliding ring, a through hole is formed in the fixed block, a third nut is fixedly mounted in the through hole, a third screw rod is rotatably mounted on the third nut in a threaded mode, a rotating rod is fixedly mounted on the third screw rod, the rotating rod is rotatably connected with the output coupling cabin, and a transmission component is mounted between the second screw rod and the rotating rod.
Preferably, the transmission member comprises a sleeve fixedly installed on the rotating sleeve, a crawler roll is fixedly installed on each of the sleeve and the rotating rod, and a crawler is sleeved between the two crawler rolls.
Preferably, the output coupling cabin is provided with a storage groove matched with the first lens mounting frame and the second lens mounting frame, and a telescopic sealing plate matched with the first lens mounting frame and the second lens mounting frame is fixedly arranged outside the storage groove.
Compared with the prior art, the invention has the advantages that:
In the welding and cutting process, the laser cutting and welding integrated machine for the thick stainless steel plate can change the focusing degree of laser beams between the first lens mounting frame and the second lens mounting frame in the output coupling cabin by changing the distance between the first lens mounting frame and the second lens mounting frame, so that the focal position of the convex lens on the second lens mounting frame is changed, the first-stage zooming operation is performed, meanwhile, the focal position of the convex lens on the second lens mounting frame is changed by changing the position of the convex lens on the second lens mounting frame, the second-stage zooming operation is performed, the two-stage zooming operation is performed simultaneously, and the focal position change amount of the convex lens on the second lens mounting frame is more in the displacement stroke range of the second lens mounting frame, so that the stainless steel thick plate with the thickness being greater than the displacement stroke range of the second lens mounting frame can be cut and welded.
In the welding and cutting process, the jet heads with rotatable angles are arranged to carry out jet protection on different cutting and welding positions, meanwhile, the pressure of gas sprayed by the jet heads can be changed according to the welding and cutting positions through the transformer, the gas sprayed in the jet heads is ensured to fully contact and protect the welding and cutting positions, the protection efficiency of inert gas is improved, the impact force of the gas sprayed by the jet heads can be mutually counteracted by adopting a plurality of jet heads, so that the impact force of the gas sprayed by the jet heads is reduced, the influence on the welding or cutting positions is reduced, the flatness of the welding or cutting positions is ensured, in addition, the inert gas is heated by adopting a temperature rising device, so that the welding and cutting positions are preheated, the initial thermal stress of the welding and cutting positions is reduced, and the probability of deformation of the welding and cutting positions is reduced.
In the welding and cutting process, the stainless steel thick plate laser cutting and welding integrated machine drives the rotating rod to rotate through the crawler belt, then drives the screw rod to rotate, drives the nut to move and the fixing block to move, and drives the sliding ring to move, so that the rack is driven to rotate, the rack drives the gear to rotate, and drives the jet head to rotate, so that the angle of the jet head is changed, the angle of the jet head can be adjusted while the focus is adjusted, the mechanical structure is adopted, the stability is higher, the adjustment of the jet head and the adjustment of the focus are synchronously carried out, and further, the intersection point of the focus and gas sprayed by the jet head is ensured to be positioned at a part to be cut and welded.
In summary, the focal position is changed by adopting the mode of simultaneously carrying out two-stage zooming operation, so that the focal position change amount of the convex lens on the lens mounting frame II is more within the displacement travel range of the lens mounting frame II, thereby cutting and welding the stainless steel thick plate with the thickness larger than the displacement travel range of the lens mounting frame II, simultaneously, the angle of the jet head and the pressure of the ejected gas can be automatically adjusted in the process of adjusting the focal point, the intersection point of the focal point and the ejected gas of the jet head is ensured to be positioned at the position to be cut and welded, and the protection efficiency of inert gas is improved.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural view of a laser cutting and welding integrated machine for stainless steel thick plates;
FIG. 2 is a schematic detail view of the structure of FIG. 1 rotated by a certain angle;
FIG. 3 is an enlarged schematic detail view of the sub-tank, lift table, longitudinal displacement table, lateral displacement table and placement table of FIG. 1;
FIG. 4 is an enlarged schematic detail view of the inert gas compartment and the cutting weld head of FIG. 1;
FIG. 5 is an enlarged schematic detail view of the cutting weld head of FIG. 4;
FIG. 6 is a schematic detail view of the structure of FIG. 5 rotated by a certain angle;
FIG. 7 is a schematic detail view of the planar structure of FIG. 6 taken at one of the angles;
FIG. 8 is a schematic detailed view of the structure of FIG. 6 rotated a certain angle;
FIG. 9 is a schematic detailed view of the laser emitting assembly of FIG. 6;
FIG. 10 is a schematic detailed view of the structure of FIG. 9 with the excitation source, laser medium capsule, output coupling capsule, output head and telescoping seal plate removed;
FIG. 11 is a schematic detail view of the structure of FIG. 10 rotated a certain angle;
FIG. 12 is an enlarged schematic detail view of the lens mount of FIG. 10 with the first lens mount, the second lens mount, the convex lens, the fixing plate, and the sleeve removed;
FIG. 13 is a schematic detailed view of the inert gas shield assembly of FIG. 6;
FIG. 14 is a schematic detail view of the structure of FIG. 13 rotated a certain angle;
FIG. 15 is a schematic detailed view of the structure of FIG. 14 with the air guide head, booster, air guide tube, catheter and temperature booster removed;
Fig. 16 is an enlarged schematic detail view of the jet head, annular gas chamber, screw three, slip ring and air guide hose of fig. 15.
In the figure, a control cabinet 1, a control panel 2, an inert gas cabin 3, a cutting welding head 4, a secondary cabinet 5, a lifting table 6, a longitudinal displacement table 7, a transverse displacement table 8, a placement table 9, a gas guide head 10, an excitation source 11, a laser medium cabin 12, an output coupling cabin 13, a output head 14, a booster 15, a gas guide pipe 16, a transformer 17, a gas jet head 18, a ring-shaped gas cabin 19, a rotating rod 20, a fixing plate 21, a telescopic sealing plate 22, a motor 23, a lens mounting frame one, a lens mounting frame two 25, a convex lens 26, a lead screw one 27, a lead screw two 28, a sleeve 29, a nut one 30, a nut two 31, a gear one 32, a gear two 33, a rotating sleeve 34, a bevel gear set 35, a sliding ring 36, a gas guide hose 37, a temperature rising device 38, a track 39, a lead screw three 40, a fixing ring 41, a fixing block 42, a gear three 43, a rack 44 and a nut three 45.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, a laser cutting and welding integrated machine for a stainless steel thick plate comprises a control cabinet 1 and a secondary cabinet 5 fixedly arranged on the side edge of the control cabinet 1;
The control part is arranged on the upper part and the inside of the control cabinet 1 and is used for controlling the operation of all electric elements on the integrated machine, the control part comprises a control panel 2 fixedly arranged on the top of the control cabinet 1, a control system matched with the control panel 2 is fixedly arranged in the control cabinet 1, the control system comprises a temperature sensor, a humidity sensor and the like except for electronic components required by the control system and is used for monitoring the temperature and the humidity in the control cabinet 1, a cooling fan is arranged on the side edge of the control cabinet 1, a plurality of universal wheels and a plurality of liftable gaskets are arranged at the bottom of the control cabinet 1 and the bottom of the auxiliary cabinet 5, the universal wheels are used for moving, and the gaskets are used for locking.
The second embodiment is different from the first embodiment in the technical scheme that referring to fig. 1-3, a placement part is arranged at the upper part and the inside of the auxiliary box 5 and used for placing a stainless steel thick plate, the placement part comprises a lifting table 6 fixedly arranged at the top of the auxiliary box 5, a longitudinal displacement table 7 is fixedly arranged at the top of the lifting table 6, a transverse displacement table 8 is slidably arranged on the longitudinal displacement table 7, and a placement table 9 is slidably arranged on the transverse displacement table 8.
An electric control system matched with the lifting table 6, the longitudinal displacement table 7 and the transverse displacement table 8 is arranged in the auxiliary box 5, the placing table 9 can freely move on the transverse displacement table 8 through the electric control system, the transverse displacement table 8 can freely move on the longitudinal displacement table 7 through the electric control system, the lifting table 6 can be controlled by the longitudinal displacement table 7 through the electric control system, the lifting table 6 can freely lift under the action of the lifting table 6, the lifting table is used for welding and cutting to drive the stainless steel plate to move and lift, and for stainless steel plates with thickness exceeding the focal change range, the height of the stainless steel plate can be changed through the lifting table 6, and then cutting and welding operations are carried out.
The lifting platform 6, the longitudinal displacement platform 7 and the transverse displacement platform 8 are all conventional moving and lifting technologies, and specific operation steps and specific structures thereof are described and shown without specific explanation.
The embodiment III is different from the embodiment II in technical scheme that referring to fig. 1-2 and 4-16, a welding and cutting part is arranged at the top and inside of a control cabinet 1 and is matched with a placing table 9 for cutting and welding a stainless steel thick plate, the welding and cutting part comprises an inert gas cabin 3 fixedly arranged at the top of the control cabinet 1, and a gas supply source communicated with the inert gas cabin 3 is fixedly arranged in the control cabinet 1.
The inert gas chamber 3 is used for providing a buffer place for the gas source, reducing the pressure of the inert gas sprayed by the gas source, keeping the pressure of the inert gas in the inert gas chamber 3 stable, and eliminating the moisture in the inert gas, thereby improving the protection performance of the inert gas.
One end of the inert gas cabin 3 is fixedly provided with a cutting welding head 4, and the cutting welding head 4 consists of a laser emitting component and an inert gas protection component.
The laser emission assembly comprises an air guide head 10 fixedly arranged at one end of the inert gas cabin 3, an output coupling cabin 13 is fixedly arranged on the air guide head 10, a first lens mounting frame 24 and a second lens mounting frame 25 are slidably arranged in the output coupling cabin 13, a convex lens 26 is fixedly arranged on each of the first lens mounting frame 24 and the second lens mounting frame 25, and a focus adjusting mechanism matched with the second lens mounting frame 25 is arranged on the output coupling cabin 13;
The convex lenses 26 on the first lens mount 24 and the second lens mount 25 are freely detachable, and the switching between welding and cutting can be achieved by changing different convex lenses 26, and the specific switching manner and the type of the lenses to be switched are known in the art, and are mentioned but not specifically described herein.
Also included within the output coupling chamber 13 are output coupling means for controlling and regulating the laser power and characteristics output from the laser transmitter. The output coupling means is typically a mirror in the optical cavity, and the reflectivity of the mirror may be adjusted to output a portion of the laser light to an external application or experiment, which is a prior art feature not specifically illustrated herein, nor specifically shown in the figures.
The focus adjustment mechanism comprises a fixed plate 21 fixedly arranged on the side edge of the output coupling cabin 13, a first screw rod 27 is rotatably arranged on the fixed plate 21 through a rotating cylinder, a first nut 30 is rotatably arranged on the first screw rod 27 through threads, the first nut 30 is fixedly connected with a second lens mounting frame 25, a motor 23 is fixedly arranged on the fixed plate 21, and the driving end of the motor 23 is connected with the first screw rod 27 through a bevel gear set 35.
The rotation of the driving end of the motor 23 drives the first screw rod 27 to rotate through the bevel gear set 35, the first screw rod 27 rotates to drive the first nut 30 to move, so that the second lens mounting frame 25 is driven to move, the second lens mounting frame 25 moves to drive the convex lens 26 on the second lens mounting frame 25 to move, and the focal position of the convex lens 26 on the second lens mounting frame 25 is changed.
The output coupling cabin 13 is provided with a storage groove matched with the first lens mounting frame 24 and the second lens mounting frame 25, and a telescopic sealing plate 22 matched with the first lens mounting frame 24 and the second lens mounting frame 25 is fixedly arranged outside the storage groove.
The function of storage tank is in order to be convenient for install and dismantle lens mounting bracket one 24 and lens mounting bracket two 25, and the function of flexible closing plate 22 is in order to carry out the shutoff to open storage tank, avoids external light source to get into and causes the influence to laser beam in the output coupling cabin 13, and flexible closing plate 22 adopts scalable design, can stretch out and draw back and remove along with the removal of lens mounting bracket one 24 and lens mounting bracket two 25.
The laser medium cabin 12 is fixedly arranged at the top of the output coupling cabin 13, the excitation source 11 is fixedly arranged at the top of the laser medium cabin 12, the output head 14 is fixedly arranged at the bottom of the output coupling cabin 13, and the light beam adjusting mechanism is arranged between the first lens mounting frame 24 and the second lens mounting frame 25.
The laser medium chamber 12 contains a working medium, also known as a lasing medium, which is the critical component of a laser transmitter that produces laser light, which may be in solid, liquid or gaseous form, having a specific energy level structure that produces laser radiation when excited by the energy of an excitation source.
Excitation source 11 is one of the core components of a laser transmitter for providing energy to excite a working medium to produce laser light, and common excitation sources 11 include electronic excitation, photoexcitation, chemical reactions, or other types of energy input devices.
The light beam adjusting mechanism comprises a second screw rod 28 rotatably arranged on a second lens mounting frame 25, a second nut 31 is rotatably arranged on the second screw rod 28 in a threaded manner, the second nut 31 is fixedly connected with the first lens mounting frame 24, and a linkage structure is arranged between the first screw rod 27 and the second screw rod 28;
The linkage structure comprises a first gear 32 fixedly arranged on a first screw rod 27, a second screw rod 28 is slidably provided with a rotating sleeve 34 through a sliding chute, the rotating sleeve 34 is in rotary connection with the fixed plate 21, and a second gear 33 meshed with the first gear 32 is fixedly arranged on the rotating sleeve 34.
The rotation of the screw rod 27 drives the gear one 32 to rotate, the rotation of the gear one 32 drives the gear two 33 to rotate, and the rotation sleeve 34 is driven to rotate, because the rotation sleeve 34 is in sliding connection with the screw rod two 28, the rotation of the rotation sleeve 34 drives the screw rod two 28 to rotate, so that the second nut 31 moves on the screw rod two 28, and the distance between the first lens mount 24 and the second lens mount 25 is changed (the distance between the focal position of the first lens 26 on the first lens mount 24 and the center point of the first lens 26 on the first lens mount 24 is larger than the relative displacement between the first lens mount 24 and the second lens mount 25, so that the laser beam collected by the first lens 26 on the first lens mount 24 can pass through the first lens 26 on the second lens mount 25, and the focal position of the first lens 26 on the first lens mount 24 and the center point of the second lens 26 on the second lens mount 24 are smaller than the relative displacement between the first lens mount 24 and the second lens mount 25, so that the focal position of the second lens 26 on the first lens mount 24 is more strongly focused before reaching the first lens 26 on the second lens mount 25, so that the focal position of the second lens 26 on the first lens 24 is more strongly focused than the focal position of the second lens 26 on the lens mount 24 is more strongly coupled with the second lens 26 on the lens 25 by the focal position of the focal point of the first lens 26 on the lens with the lens 26 on the lens mount 24 on the lens mount, and more strongly coupled with the lens 13, in this way, the focal point of the convex lens 26 on the second lens mount 25 is earlier than the focal point of the horizontal laser beam, that is, the distance between the focal point position of the converging beam and the center point is smaller than the distance between the focal point position of the horizontal beam and the center point.
The inert gas protection assembly comprises a booster 15, a transformer 17 and a temperature rising device 38 which are fixedly arranged on the side edge of the output coupling cabin 13, wherein the booster 15, the temperature rising device 38, the booster 15 and the temperature rising device 38 are communicated with the transformer 17 through air ducts 16, a fixed ring 41 is fixedly arranged on the output head 14, and a plurality of jet heads 18 are rotatably arranged on the fixed ring 41.
The pressure of the gas sprayed by the jet head 18 is changed according to the welding and cutting positions through the transformer 17, so that the gas sprayed by the jet head 18 is ensured to be fully contacted with the welding and cutting positions for protection, and the protection efficiency of inert gas is improved.
The impact force of the gas sprayed by the gas spraying heads 18 can be offset by the plurality of gas spraying heads 18, so that the impact of the impact force of the gas sprayed by the gas spraying heads 18 on welding or cutting parts is reduced, the flatness of the welding or cutting parts is ensured, in addition, the inert gas is heated by the temperature rising device 38, so that the cutting welding parts are preheated, the initial thermal stress of the cutting welding parts is reduced, and the probability of deformation of the welding cutting parts is reduced.
The annular gas cabin 19 is fixedly arranged on the output head 14, the annular gas cabin 19 is communicated with the plurality of jet heads 18 through gas guide hoses 37, the annular gas cabin 19 is communicated with the temperature rising device 38 through gas pipes, and the annular gas cabin 19 is provided with an angle adjusting mechanism matched with the plurality of jet heads 18.
The angle adjusting mechanism comprises a sliding ring 36 which is slidably arranged outside the annular gas cabin 19, a plurality of racks 44 are fixedly arranged on the sliding ring 36, a rotating shaft is fixedly arranged on each jet head 18, each rotating shaft is in rotary connection with the fixed ring 41, a gear III 43 meshed with the corresponding rack 44 is fixedly arranged on each rotating shaft, and a driving component matched with the sliding ring 36 is arranged on the output coupling cabin 13.
The driving part comprises a fixed block 42 fixedly arranged on the sliding ring 36, a through hole is formed in the fixed block 42, a third nut 45 is fixedly arranged in the through hole, a third screw rod 40 is rotatably arranged on the third nut 45 in a threaded mode, a rotating rod 20 is fixedly arranged on the third screw rod 40, the rotating rod 20 is in rotary connection with the output coupling cabin 13, and a transmission component is arranged between the second screw rod 28 and the rotating rod 20.
The rotation of the rotating rod 20 drives the screw rod III 40 to rotate, the screw rod III 40 rotates to drive the nut III 45 to move, the sliding ring 36 is driven to move through the fixed block 42, the sliding ring 36 is driven to move through the rack 44, the rotating shaft is driven to rotate through the gear III 43, and the rotating shaft drives the jet head 18 to rotate, so that the angle of the jet head 18 is changed.
The transmission member comprises a sleeve 29 fixedly arranged on a rotating sleeve 34, a crawler belt roller is fixedly arranged on the sleeve 29 and the rotating rod 20, and a crawler belt 39 is sleeved between the two crawler belt rollers.
The sleeve 29 is driven to rotate by rotation of the rotating sleeve 34, and the rotating rod 20 is driven to rotate by the crawler rollers and the crawler 39, so that the monitoring and adjustment of the jet head 18 can be realized while the focal point adjustment is realized, the position of the jet head 18, which is just in a tangential or welded position, of the gas sprayed out of the jet head 18 is ensured, the accuracy is improved, and the stability is high.
As can be seen in fig. 15-16, the length of the first screw 27 is greater than the displacement of the sliding ring 36, so that the pitch of the third screw 40 is smaller than the pitch of the first screw 27, which can slow down the fixed block 42, while the size of the roller on the rotating rod 20 is greater than the size of the roller on the rotating sleeve 34, which can reduce the rotational speed of the rotating rod 20, which can ensure that the angle of the jet head 18 is always inward.
The specific operation steps of the device are as follows:
Firstly, placing a stainless steel thick plate on a placing table 9, fixing the stainless steel thick plate, clamping the stainless steel thick plate on the placing table 9, adjusting the height of the stainless steel thick plate through a lifting table 6, and adjusting the position of the placing table 9 through a longitudinal displacement table 7 and a transverse displacement table 8, wherein in the welding or cutting process, the transverse displacement table 8 can drive the placing table 9 to move along with cutting or welding, so that welding and cutting are realized.
The control system and electronic control system are then programmed according to the post settings of the stainless steel plank, and then either welding or cutting is performed, with the mode switching between welding and cutting being accomplished by changing the type of output head 14 and convex lens 26.
The device is in a cutting mode, and the device comprises the following specific operation steps that inert gas is introduced into an air guide head 10 through an inert gas cabin 3, then inert gas is introduced into a booster 15 through an air guide pipe 16, the booster 15 heats the inert gas by introducing the inert gas into a temperature rising device 38 through the air guide pipe 16, then the inert gas is introduced into a jet head 18 through an air guide hose 37, then the inert gas is jetted to a cutting part through the jet head 18, and the booster 15 can automatically regulate the pressure of the inert gas according to the cutting time.
As cutting proceeds, the depth of cut increases, and in order to achieve optimal cutting efficiency, the focal point of the laser needs to change with the change of the depth;
At this time, the motor 23 is operated, the driving end of the motor 23 rotates and drives the screw rod one 27 to rotate through the bevel gear set 35, the screw rod one 27 rotates and drives the nut one 30 to move, thereby drive the lens mounting frame two 25 to move, thereby change the focal point position of the convex lens 26 on the lens mounting frame two 25, simultaneously, the screw rod one 27 rotates and drives the gear one 32 to rotate, the gear one 32 rotates and drives the gear two 33 to rotate, thereby drive the rotating sleeve 34 to rotate, because the sliding connection is between the rotating sleeve 34 and the screw rod two 28, the rotating sleeve 34 rotates and drives the screw rod two 28 to rotate, thereby enable the nut two 31 to move on the screw rod two 28, thereby changing the distance between the lens mounting frame one 24 and the lens mounting frame two 25, as the distance between the two convex lenses 26 increases, the focus position of the convex lens 26 on the lens mounting frame two 25 is closer to the center point of the convex lens 26 on the lens mounting frame two 25, the operation process is followed by deepening of the cutting depth, the lens two 25 moves downwards along with the movement of the first lens mounting frame 24, the pitch of the first lens 26 also moves downwards, the focal point of the convex lens 26 is also changed downwards, the distance between the two convex lenses 26 is also changed downwards, and the distance between the two convex lenses 25 is changed, and the focal point of the focal point on the two lens 26 is also changed downwards, and the focal point is greatly changed, the distance between the two convex lenses is increased, and the focal point is also is changed, and the focal distance between the two lens 26 is increased.
Along with the change of the focus, the focus of the laser is always gathered at the cutting position, meanwhile, in the zooming process, the rotating sleeve 34 rotates to drive the sleeve 29 to rotate, the rotating rod 20 is driven to rotate through the track roller and the track 39, the rotating rod 20 rotates to drive the screw rod III 40 to rotate, the screw rod III 40 rotates to drive the nut III 45 to move, the sliding ring 36 is driven to move through the fixed block 42, the sliding ring 36 moves to drive the rack 44 to move, the rotating shaft is driven to rotate through the gear III 43, and the rotating shaft drives the jet head 18 to rotate, so that the angle of the jet head 18 is changed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
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| CN120095333B (en) * | 2025-05-09 | 2025-07-25 | 四川中科电梯有限公司 | Spot welding processing device for elevator door plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108176927A (en) * | 2018-02-02 | 2018-06-19 | 苏州钋镭自动化科技有限公司 | Laser cutting head |
| CN111644743A (en) * | 2020-07-05 | 2020-09-11 | 常州市兆晟自动化科技有限公司 | Laser welding blowing protection device for copper foil and stainless steel plate |
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| CN203778973U (en) * | 2014-04-15 | 2014-08-20 | 杨燕芬 | Full-automatic laser cutting machine |
| CN112846488B (en) * | 2021-03-09 | 2024-11-22 | 上海维宏电子科技股份有限公司 | Variable spot laser cutting head device |
| CN217230941U (en) * | 2022-01-04 | 2022-08-19 | 阳泉市金星物资有限公司 | Cladding device with preheating and heat-preserving functions |
| CN116511697A (en) * | 2023-05-15 | 2023-08-01 | 江苏跃格智能装备有限公司 | A laser cutting machine cutting head automatic focusing system and its equipment |
| CN220993202U (en) * | 2023-07-20 | 2024-05-24 | 安徽行思金属制品有限公司 | Aluminum alloy plate welding device |
| CN117718603B (en) * | 2024-01-16 | 2025-09-02 | 江苏乐希激光装备有限公司 | A focus-adjustable cutting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176927A (en) * | 2018-02-02 | 2018-06-19 | 苏州钋镭自动化科技有限公司 | Laser cutting head |
| CN111644743A (en) * | 2020-07-05 | 2020-09-11 | 常州市兆晟自动化科技有限公司 | Laser welding blowing protection device for copper foil and stainless steel plate |
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