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861 results about "Keyhole" patented technology
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A keyhole (or keyway) is a hole or aperture (as in a door or lock) for receiving a key. Lock keyway shapes vary widely with lock manufacturer, and many manufacturers have a number of unique profiles requiring a specifically milled key blank to engage the lock's tumblers.
Pachinko machine
It is desired to provide a gaming machine that can smoothly progress the game. 【Solution means】 When inserting the setting key into the setting keyhole, the setting keyhole is configured such that the setting key can be inserted to a first depth, and it is possible to insert the setting key into the front door keyhole. When inserting the setting key into the front door keyhole, the front door keyhole is configured such that the setting key can be inserted to a second depth that is deeper than the first depth. In a situation where the setting key is inserted into the front door keyhole to the second depth, the front door keyhole is configured to be able to hold the setting key.
Owner:SAMMY CORPORATION
Loudspeaker apparatus
The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus comprises a core housing for accommodating the earphone core; a circuit housing for accommodating a control circuit that drives the earphone core to vibrate to generate a sound, wherein the sound includes at least two resonance peaks; an ear hook for connecting the core housing and the circuit housing; a key arranged at a keyhole on the circuit housing, wherein the key moves relative to the keyhole to generate a control signal for the control circuit; and an elastic pad arranged between the key and the keyhole, wherein the elastic pad hinders a movement of the key towards the keyhole. In the present disclosure, by providing an elastic pad between the key and the keyhole, the waterproof effect of the loudspeaker apparatus may be improved, and the space occupied by the key may be reduced.
Owner:SHENZHEN SHOKZ CO LTD
Friction stir welding device and method for large-curvature thin-wall circular pipe type structure
The invention discloses a friction stir welding device for a large-curvature thin-wall round pipe type structure, which comprises a weldment clamping tool, a clamping tool supporting mechanism, a stirring welding main shaft, a stationary shaft shoulder stirring welding stirring head and a filling stirring welding stirring head, and further discloses a using method of the device. According to the method, after the joint surfaces of the two round pipes are welded through friction stir circular seam welding of the stationary shaft shoulder, the end part of the filling rod is reserved in the keyhole for filling by using a filling friction stir welding method to finish welding, the method is a solid-phase welding method, and compared with melting welding methods such as electric arc welding and laser welding, the performance of the welded joint is better.
Owner:SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
Laser welding spatter real-time identification method based on OCT keyhole depth measurement
InactiveCN119426794AImprove recognition rateImprove recognition accuracyNeural learning methodsLaser beam welding apparatusData setComputational physics
The invention discloses a laser welding spatter real-time recognition method based on OCT keyhole depth measurement. The method comprises the steps of S1, keyhole depth data collection based on OCT measurement and data set construction and S2, construction training of a deep learning model and spatter defect recognition. According to the method, an SD-OCT measurement technology is combined with a composite deep learning model based on 1DCNN-BiLSTM splash defect recognition, a Dropout technology and adaptive moment estimation are adopted to prevent model overfitting, and a TPE algorithm is adopted to carry out hyper-parameter optimization on the model, so that the trained 1DCNN-BiLSTM splash defect recognition model can accurately predict the splash state in the dynamic laser welding process, and the accuracy of the dynamic laser welding process is improved. Manual intervention is not needed, and the laser welding spatter defect can be rapidly and accurately recognized.
Owner:TAIER WISDOM (SHANGHAI) LASER TECH CO LTD +1
Mounting bracket with bendable tabs for electrical boxes
A mounting bracket for electrical boxes that can include a mounting body with a central opening, a front face, a first and second set of keyhole features, a first bendable tab located adjacent a first side of the central opening, and a second bendable tab located adjacent a second side of the central opening. The first bendable tab can be bendable rearward away from the front face of the mounting body to engage an exterior surface of a side wall of the first electrical box and thereby secure the first fasteners within the first set of keyhole features. The second bendable tab can be bendable rearward away from the front face of the mounting body to engage an interior surface of a side wall of the second electrical box and thereby secure the second fasteners within the second set of keyhole features.
Owner:ERICO INTERNATIONAL CORP
Flat-lying conversion type luggage case
The utility model relates to a flat-lying conversion type luggage case. The lower end of a pull rod is rotatably connected with a case body, and is inserted and fixed with a lock hole in a pull rod seat through a spring bolt on a lock seat. The unlocking mechanism controls the spring bolt to stretch out and draw back, locking and unlocking of the pull rod are achieved, and the luggage case can be switched among different states conveniently. The lock seat can be detachably divided into the upper cover plate and the lower cover plate, and assembling and maintaining are convenient. The unlocking block is connected with the shifting buckle through a screw, manual operation is facilitated, and friction force and operation convenience are improved through anti-skid lines and protruding strips. The pull rod can rotate around the box body due to the design of the rotating sleeve and the rotating seat, and the bump is matched with the groove to realize fixation at any angle. The pull rod is composed of an outer pipe and an inner pipe and achieves the telescopic function. The embedded grooves ensure that the surface of the box body is smooth and attractive, and meanwhile components are protected. According to the design, the problem that a handle assembly is inconvenient to use in the prior art is solved, and the practicability and flexibility of the luggage case are improved.
Owner:ZHEJIANG HONGYI CASES & LEATHER CO LTD
Safety Mechanism
A safety mechanism for an obturator having a sharp distal tip and a notch proximal to the sharp distal tip. The safety mechanism includes a sheath and clip combination configured to releasably couple to a needle hub. The clip is configured to transition between a coupled configuration and an uncoupled configuration. The clip can include a first arm including a first keyhole aperture and a second arm including a second keyhole aperture. The clip can further include a biasing member connecting the first arm to the second arm, the biasing member configured to bias the clip toward the uncoupled configuration. The first keyhole aperture and the second keyhole aperture are configured to slidingly receive the obturator. The clip can transition from the coupled configuration to the uncoupled configuration when the first keyhole aperture and the second keyhole aperture engage the notch.
Owner:BARD ACCESS SYSTEMS INC
Connecting structure of intelligent lock sticker
Owner:ZHONGSHAN CITY JIXIN CORE LOCK CO LTD
Vision-based crossing container truck deadbolt state detection method
PendingCN120088714AInternal combustion piston enginesCharacter and pattern recognitionRobotic armVision based
The invention relates to a vision-based crossing container truck deadbolt state detection method, and belongs to the technical field of image processing. The crossing container truck deadbolt state detection method based on vision comprises the steps that an image of a lock hole area is obtained through a long-focus camera on a mechanical arm, and in order to judge the opening and closing state of a lock pin, edge features of the lock hole and the lock pin need to be extracted; based on the edge strength and in combination with keyhole priori knowledge, carrying out deadbolt state optimization judgment; lock pin state confirmation, result output and linkage control are carried out, a detection result is directly linked with a crossing control system to realize safety management and control of the container truck, and if the lock pin is in a locked state, the system forbids the container truck to pass through the crossing handrail and keeps closed; the container truck lock pin state detection method based on machine vision solves the problem that in an existing container truck lock pin state detection method based on machine vision, the detection precision of Hough transform is low under complex conditions such as uneven illumination, noise interference, lock pin contamination and slight deformation, and is used for improving the accuracy of container truck lock pin state detection.
Owner:SHANGHAI MAIGAO NETWORK TECH CO LTD
Calculation management and control system of power plant secondary screen cabinet holeless passive intelligent lockset
PendingCN120299117AIndividual entry/exit registersSecuring communicationWired communicationPower station
The invention discloses a calculation management and control system for a power plant secondary screen cabinet holeless passive intelligent lock, and the system comprises a holeless passive intelligent lock terminal which is disposed on a secondary screen cabinet door, has no mechanical key hole on the surface, achieves the non-contact power taking through a wireless induction power supply module, integrates a spring bolt position sensor, a vibration sensor and an encryption communication chip, and is connected with a power supply module. The acquisition module is used for acquiring lock state data and encrypting interaction; and the edge computing node is connected with the intelligent lock through wireless / wired communication. The calculation management and control system of the power plant secondary screen cabinet holeless passive intelligent lockset is reasonable in structure, the lockset adopts a magnetic type holeless design, the surface of the lockset is free of a mechanical key hole, the lock picking risk possibly caused by the mechanical key hole is avoided, the possibility of illegal opening is greatly reduced, the safety of the secondary screen cabinet is guaranteed from the physical level, and the safety of the secondary screen cabinet is improved through graded early warning. Potential security threats can be found and processed in time, the security response capability of the system is improved, and the method is worthy of popularization.
Owner:贵州北盘江电力股份有限公司 +1
Lock cylinder with adjustable length
Owner:ZHONGSHAN CITY JIXIN CORE LOCK CO LTD
Axial tolerance compensation arrangement, a connection between two components, and a connection and manufacturing process for it.
The present invention discloses an axial tolerance compensation arrangement 1 for the automatic compensation of tolerances between a first component A and a second component B, which has the following features: a nut element 10, preferably an annular nut element, with a radially outer fastening structure, in particular a bayonet structure, which can be fastened in a component opening 90, in particular a keyhole geometry, of the first component A, and an internal nut thread 22 of a first thread direction, a hollow screw 40 with a head 44 and a hollow cylindrical shank 42, which has on a radial outer side an adjusting thread 52 matching the nut thread 22 and on a radial inner side a fastening thread 56 with a second thread direction opposite to the first, which interacts with a fastening screw 80 of a second thread direction,so that the first component A and the second component B can be fastened to each other via the tolerance compensation arrangement 1, wherein the hollow cylindrical shaft 42 has a disassembly protection 60 at an axial end facing away from the head, which prevents the hollow screw 40 from being unscrewed from the nut element 10 during installation of the tolerance compensation arrangement 1.
Owner:BOLLHOFF VERBINDUNGSTECHNIK GMBH
Scanning galvanometer laser welding keyhole molten pool automatic identification method based on deep learning
PendingCN119516336Aaccurate identificationCharacter and pattern recognitionNeural learning methodsPattern recognitionData set
The invention discloses a scanning galvanometer laser welding keyhole molten pool automatic identification method based on deep learning, which comprises the following steps: acquiring original visual image information in a scanning galvanometer laser welding process, manufacturing a small amount of segmentation mark samples, and forming a semantic segmentation data set together with the original visual image; and then through training and verification, obtaining a semi-supervised generative adversarial semantic segmentation model capable of accurately segmenting an optimal attention mechanism of the keyhole molten pool. A segmentation model is used for segmenting an original visual image, then segmentation images containing a keyhole and a molten pool are obtained through traditional image processing algorithms including image channel segmentation based on pixel values, image morphological processing denoising, contour searching and the like, and then the segmentation images are multiplied by an original visual signal for mask operation, so that in the welding process, the key hole and the molten pool are obtained. And accurately identifying a keyhole and a molten pool. According to the method, the recognition accuracy of dynamic changes of the keyhole and the molten pool in the scanning galvanometer laser welding process can be improved, and it is guaranteed that the quality of machined products is controllable.
Owner:SHANDONG SHIP TECH RES INST +1
Repositionable over the scope clip
A clipping system includes an adapter, a clip and an extending member. The adapter mounted over an insertion device. The clip mounted over the adapter and includes first and second jaws connected to one another such that the jaws are movable between an insertion configuration and an initial deployed configuration. The first jaw includes a keyhole opening. The member coupled to the clip and adapter. The member includes a distal end releasably engaging the opening. The distal end has a width smaller than a width of a first portion of the opening and larger than a second portion of the opening so that, when a portion of the member proximal of the distal end is received within the second portion, the adapter is released from the clip while the member remains coupled to the clip. The member forces the clip open as the clip retracts over the adapter.
Owner:BOSTON SCIENTIFIC SCIMED INC +1
Method for homogenizing reinforced phase of inserted ultrasonic vibration-assisted laser welding aluminum-based composite material
ActiveCN119282403Apromote aggregationStir wellLaser beam welding apparatusUltrasonic vibrationSpot welding
The invention discloses a plug-in ultrasonic vibration assisted laser welding aluminum-based composite reinforcement phase homogenization method which is characterized by comprising the following steps: carrying out mechanical assembly and laser spot welding fixation on a workpiece to be welded; and formal welding operation is conducted on the to-be-welded workpiece, when welding is started to form a keyhole, a variable-amplitude tungsten needle capable of conducting ultrasonic vibration extends into a molten pool to conduct stirring, and welding is completed. Ultrasonic vibration directly acts on a laser welding pool through the variable-amplitude tungsten needle, and the aggregation phenomenon of a reinforcing phase in the welding process is effectively improved. Compared with a traditional method only by optimizing welding parameters or adding filling materials, the method has the advantages that highly uniform distribution of the reinforcement phase in the welding joint area can be achieved, the contour morphology of the welding seam is improved, and the quality of the welding seam is remarkably improved.
Owner:XI AN JIAOTONG UNIV
Suspension bead lock cylinder
The utility model discloses a suspension bead lock cylinder, and relates to the technical field of lock cylinders. The key comprises a lock shell, two lock liners, a key body, a plurality of main marble mechanisms, a group of auxiliary marble mechanisms and two suspension blocks, key holes are formed in the lock liners, a plurality of main through openings communicated with the key holes are linearly formed in the circumferential side faces of the lock liners, the key body comprises a key body and a key handle, and key flower parts are arranged on the upper surface and the lower surface of the key body. A set of auxiliary through openings are formed in the lock cylinder, a Y-shaped structure is formed between the two auxiliary through openings and the main through opening, and the auxiliary through openings face the axis of the lock cylinder. Through the design of the auxiliary marble mechanism and the suspension block on the key, the number of knurling matching points can be increased, meanwhile, the auxiliary marble mechanism and the main marble mechanism are different in direction, so that different angles of the knurling matching points can be increased, the anti-theft capacity of the lock cylinder can be greatly improved, the auxiliary marble mechanism cannot interfere with the lock shell, and the anti-theft effect is good. And processing, production and assembly are facilitated.
Owner:JIANGYIN ORIENT GANGSHENG METAL PRODUCTS CO LTD
Sliding type dustproof cover of plane lock handle
ActiveCN222314856UReasonable structural designeasy to useBuilding locksClassical mechanicsStructural engineering
The utility model relates to a sliding type dustproof cover of a plane lock handle, which is designed for solving the technical problems that the bottom of the dustproof cover of the existing similar product is less provided with a sliding cover for exposing or closing a key hole, the stability of the sliding cover is poor, and scratches are easy to generate. A main body of the sliding type dustproof cover is a dustproof cover, and the dustproof cover is arranged in a groove in the top of a lock cylinder assembly of a handle. The key point is that a key hole at one end of the dustproof cover is aligned with a key hole of the lower lock cylinder assembly, a sliding cover is arranged in a bottom groove of the dustproof cover, and the key hole at the lock cylinder assembly is exposed or closed through sliding of the sliding cover in the bottom groove of the dustproof cover; a magnet is arranged on the top plane of one side of a key hole of the lock cylinder assembly, another magnet fixed in a magnetic attraction mode is arranged at the bottom of the corresponding sliding cover above the magnet, and the sliding cover is fixed to the magnet on one side in a sliding attraction mode. The clamping springs are arranged in the handle clamping spring grooves in the two sides of the handle respectively, and meanwhile the clamping springs on the two sides are buckled with the sliding cover clamping spring grooves of the sliding cover respectively.
Owner:NINGBO SHENGJIU TECH CO LTD
Facade panel fastening system
A fastening arrangement for connecting a façade panel and a panel holder is provided. The façade panel is a panel with a homogeneous structure; with a front side, a material layer and a rear side. A keyhole-shaped groove is provided on the rear side of the facade panel having a widened insertion opening and a retaining area with an undercut in the material layer. The mechanical connection between the facade panel and the panel holder is a riveted connection using a rivet with a mushroom-shaped head inserted through the insertion opening and into the undercut of the retaining area. The panel holder is pushed onto a free end of the rivet shank that extends out via a through-opening so that the panel holder rests on the cover panel. The rivet shank free end is then formed by a rivet setting tool to create a positive fit between the composite panel and the panel holder.
Owner:SFS GROUP INTERNATIONAL AG
A fluid expelling lock cylinder
An anti-tamper cylinder lock to reduce the prospect of a freeze attack, the cylinder comprising a cylinder body, a key aperture 5, a plug 7 comprising one or more locking pins 9, a continuous channel
Owner:UAP
Die partition thermal conductivity design method and system based on keyhole regulation and control
The invention provides a mold partition thermal conductivity design method and system based on keyhole regulation and control, relates to the technical field of additive manufacturing, and aims to solve the problem that mold performance is affected due to unreasonable keyhole distribution when a mold component is subjected to melt processing by a laser powder bed at present. The key hole distribution is reduced in the area close to the cooling water channel to improve the heat conductivity, the key hole distribution is increased far away from the cooling water channel to reduce the heat conductivity, and the key hole defect is converted into the functional characteristic of regulating the heat conductivity of the mold component, so that the problem that the heat conductivity partition adjustment cannot be insufficient in the traditional technology is solved, and the partition heat management requirement is met; the mold performance is improved.
Owner:SHANDONG UNIV
U-lock structure
A U-lock structure comprising a lock body, a U-lock rod, and two end caps, wherein the U-lock rod is inserted into the lock body and the two end caps are fitted onto the left and right ends of the lock body, respectively. The lock body includes a lock seat fitted within a sleeve assembly, a lock core installed at one end of the lock seat and connected to the lock seat via an actuating member, the lock core having a keyhole for inserting a key, whereby rotation of the lock core causes the lock seat to rotate back and forth to form a locked or unlocked state. Wherein the two end caps are used to seal the left and right ends of the sleeve assembly, preventing dust or particles from entering the sleeve assembly or the lock seat, thereby avoiding situations where locking or unlocking cannot be performed.
Owner:TSAI CHENG YU
Titanium alloy component single-sided entry double-layer weld one-time forming electron beam welding method
ActiveCN116890161BElectron beam welding apparatusWelding/soldering/cutting articlesBeam energyTitanium alloy
The application provides a one-time forming electron beam welding method for a titanium alloy component with single-sided incidence and double-layer welds, which comprises the following steps: a closed cavity structure titanium alloy component is formed by a plurality of mutually shielded multi-layer thin plates through single-direction electron beam incidence; the focusing current of the electron beam is adjusted; the converging effect of the electromagnetic coil is changed to change the focus position, and then the electron beam keyhole depth and size are changed; the keyhole is adjusted to be an energy channel through which the electron beam passes; the electron beam energy can pass through the first layer of welds to reach the second layer of welds; the controllable linear energy is provided by combining the acceleration voltage, the welding current and the welding speed to ensure that the remaining energy that penetrates reaches the second layer of welds to complete the welding of the second layer of welds again; the low-frequency scanning is combined with the electron beam movement to drive the first layer of molten pool metal to flow and fill the rear channel, and the front channel is opened, so that the channel is dynamically smooth and stable, and the electron beam keyhole effect behavior is adjusted.
Owner:SHENYANG AIRCRAFT CORP
Fixture for use with vacuum hoist
A removable fixture may include a cover assembly, comprising a cover having a top surface which is generally planar and substantially void of any features formed thereon, one or more first alignment features mechanically coupled to a side of the cover, and a wing. The wing may have one or more keyholes configured to mechanically engage with one or more corresponding coupling structures on a physical object and one or more second alignment features configured to mechanically engage with the one or more first alignment features in order to, when the one or more first alignment features are mechanically engaged with the one or more second alignment features, constrain translation of the cover relative to the physical object to a linear translation.
Owner:DELL PROD LP
Tension lock with dust cover self-locking and anti-vibration mechanism
The utility model relates to a tension lock with a dust cover self-locking and anti-vibration mechanism, which is designed to solve the technical problem that the key hole of the existing similar products lacks a structural design for unlocking through a dust cover, and the locked steel bolt is easily ejected due to the lock rod spring when used in a scene with more vibration, causing the locked cabinet door to lose pre-tightening. The key points are that the outer diameter of the lock rod in the base of the tension lock is sleeved with a lock core, the outer diameter of the ring rib platform of the lock core in the base is provided with a dust cover spring, the waist grooves on both sides of the dust cover are fixed to the top opening in the base through the single-head knurled pins driven into the outer diameter of both sides of the base, the outer diameter of the steel wire retaining ring is fixed to the inner diameter of the base, and the ring rib platform of the lock core is limited to the inner diameter of the steel wire retaining ring; the inner diameter shape of the top opening of the dust cover corresponds to the outer diameter shape of the end boss of the lock core, and when the key is inserted into the opening at the top of the base to press the dust cover down to move below the boss at the end of the lock core, the lock core is unlocked and driven to rotate by the key.
Owner:NINGBO SEHNGJIU CABINET LOCK CO LTD
Manual unlocking device capable of being attached to electric control lock
The utility model discloses a manual unlocking device capable of being attached to an electric control lock. A fixing base is composed of a horizontal plate and a vertical downward plate. The cam fixing seat and the lock body are arranged on the rear bottom surface and the front bottom surface of a horizontal plate of the fixing seat respectively, and the cam is structurally characterized in that an arc-shaped raised head used for triggering a manual opening contact of the electric control lock is fixedly connected to a cylinder and forms a key hole matched with a key together with the front part of the cylinder; the rear and front cylinders of the cam are movably erected between the hole of the cam fixing seat and the hole of the rear part of the lock body respectively; a reset spring is arranged at the rear part of the cam; and the electric control lock is mounted on the inner surface of a vertical downward plate of the fixed seat. The manual unlocking device is specially used for manually unlocking the electronic control lock of the dosing door and / or the access door of the unit medicine cabinet, has the characteristics of compact structure, convenience and quickness in unlocking the electronic control lock and the like, and overcomes the defect that the electronic control lock is forced to be unlocked violently due to faults of the electronic control lock.
Owner:CHENGDU XINYUECHENG IND CO LTD
Fixture for use with vacuum hoist
A removable fixture may include a cover assembly, comprising a cover having a top surface which is generally planar and substantially void of any features formed thereon, one or more first alignment features mechanically coupled to a side of the cover, and a wing. The wing may have one or more keyholes configured to mechanically engage with one or more corresponding coupling structures on a physical object and one or more second alignment features configured to mechanically engage with the one or more first alignment features in order to, when the one or more first alignment features are mechanically engaged with the one or more second alignment features, constrain translation of the cover relative to the physical object to a linear translation.
Owner:DELL PROD LP
Lock cylinder assembling machine for assembling lock cylinder
The utility model discloses a lock cylinder assembling machine for assembling a lock cylinder. The lock cylinder assembling machine comprises a lock cylinder cap obtaining mechanism; the lock cylinder cap obtaining mechanism is configured to be suitable for arranging a key hole of a lock cylinder cap in the set direction and placing the key hole in a lock cylinder body. The method is characterized in that the lock cylinder cap obtaining mechanism comprises a positioning assembly and an arrangement device, the positioning assembly comprises a positioning piece and a first elastic piece, the top of the positioning piece is configured to be suitable for being inserted into a key hole, and the first elastic piece is configured to enable the positioning piece to apply force to the positioning piece in the direction close to the lock cylinder cap; the arrangement device is configured to be capable of driving the lock cylinder cap to rotate so that the key hole of the lock cylinder cap can rotate to a preset position, and at the preset position, the positioning piece moves upwards under the action of the first elastic piece and is inserted into the key hole to limit continuous rotation of the lock cylinder cap so that the key hole of the lock cylinder cap can be arranged in the set direction. Compared with the prior art, the scheme has the advantages that the lock cylinder cap can be positioned, so that the lock cylinder cap can be assembled conveniently.
Owner:YIWU HONGRI INTELLIGENT TECH CO LTD
Laser welding method for metal workpiece with aluminum coating on surface and workpiece thereof
The invention provides a laser welding method for a metal workpiece with an aluminum coating on the surface, at least two laser beams are symmetrically arranged in the welding advancing direction in the laser welding process, the quality factor M2 of the laser beams is smaller than 1.5, each laser beam irradiates a welding assembly, and the welding assembly is welded with the aluminum coating on the surface of the metal workpiece. More than two deep melting small holes and molten metal surrounding the small holes are formed; under the irradiation of laser beam energy, the welding zone of the assembly is melted to form an overall slender molten pool, and the front edge of the molten pool tends to the vertical advancing direction to form a nearly rectangular morphology front end; the multiple deep penetration small holes drive surrounding liquid metal to flow and enable an aluminum coating on the surface of the weldment assembly to be melted, and distribution of aluminum in a molten pool tends to be uniform. According to the method, multiple laser beams are provided to act on laser welding of butt joint of the steel with the aluminum coating, so that the aluminum element is uniformly distributed in a welding seam, the influence of aluminum on a welding joint is weakened, the method is low in cost and simple to operate, and the laser welding joint with excellent performance can be obtained.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Combined laser welding method and device
The invention provides a combined laser welding method and device.The method comprises the following steps that linear structured light is adopted to scan a welding seam area of a welding workpiece in the welding path direction, and morphological characteristics of the welding seam area are obtained; determining welding process parameters of the combined laser welding device according to the morphological characteristics and the material characteristics of the welding workpiece; the combined laser welding assembly is driven to move along the welding path, the welding seam area is welded, characteristic parameters of small laser holes in the welding seam area are monitored in real time, and in the continuous laser welding process, if the characteristic parameters exceed a preset range, pulse laser is switched to conduct welding on the welding seam area; and in the continuous laser welding process, if the characteristic parameters exceed the preset range, continuous laser is switched to conduct welding on the welding seam area. The problem that thermal stress is not uniform when different materials are welded can be effectively solved, the uniformity and strength of a welding area are guaranteed, high-precision welding of structural parts in complex shapes is achieved, and the welding precision and consistency are guaranteed.
Owner:AVIC BEIJING AERONAUTICAL MFG TECH RES INST