1274 results about "Ultrasonic welding" patented technology

A lightweight play or training device includes an inflatable bladder and a two-piece molded polymer cover formed by first and second closed-cell foam half-shells fused together (e.g., by ultrasonic welding) along a continuous peripheral seam. The bladder, when unconstrained, is significantly larger than the internal volume of the molded cover so that upon inflation it bunches against the inner surface of the cover, thereby absorbing impact energy and slowing aerodynamic flight. Preferred foams have densities of 20 kg m−3 to 60 kg m−3 and Shore A hardness of 30-60. The device may include an integral inflation tube acting as a one-way valve and an optional elastic tether for solo skills practice. Variants include spherical balls and flying discs, as well as alternative seam geometries and joining techniques.

The invention provides an ultrasonic welding quality control system and method, and relates to the technical field of ultrasonic welding, and the system comprises an acquisition and recognition module which is used for collecting sensor data of welding head displacement, weldment interface temperature, welding head amplitude and welding power in real time in the ultrasonic welding process, identifying a welding head displacement peak value, an interface temperature inflection point and a power fluctuation critical characteristic value; and the parameter extraction module is used for extracting a displacement peak value characteristic value, an interface temperature inflection point characteristic value, a power fluctuation critical characteristic value, a welding head amplitude characteristic value and a welding time characteristic value in the welding process based on the sensor data to form a characteristic parameter set. By means of multi-parameter feature extraction, correlation analysis, dynamic adjustment and closed-loop feedback, accurate control over the welding process is achieved, the welding quality stability is improved, and the rate of unqualified products is reduced.

The application discloses a rotary table type ultrasonic welding device, which comprises a rack, a rotary table, a supporting device and an ultrasonic welding device arranged on the periphery of the rotary table. The rotary table is rotatably installed on the rack. The rotary table is provided with supporting bolts protruding from the bottom surface of the rotary table. The supporting device is in abutment with the supporting bolts through liftable supporting pieces. When the ultrasonic welding device is pressed for welding, the mounting seat can be supported by the supporting device, so that the rotary table is prevented from being deformed due to the pressing. The rotary table is provided with a mounting seat. The mounting seat comprises a bottom plate installed by leveling screws. The rotary table and the mounting seat can be kept horizontal through the leveling screws. The mounting seat is further provided with elastic washers. The elastic compression of the elastic washers can ensure that the workpiece can keep the airtightness of welding even if the workpiece is slightly inclined when being pressed.

The invention belongs to the technical field of thermoplastic composite material ultrasonic welding, and particularly relates to a fabric fiber reinforced thermoplastic composite material energy-conducting-rib-free type continuous ultrasonic welding method which comprises the following steps: S1, cleaning the surface of a to-be-welded part of a fabric fiber reinforced thermoplastic composite material; s2, a workpiece to be welded is fixed to an anvil; s3, selecting an ultrasonic welding head; s4, the initial positions of the pre-pressing structure and the pressure maintaining structure are adjusted; s5, the moving path of the mechanical arm is planned, the posture of the mechanical arm is controlled, and the moving speed of the mechanical arm is set; s6, ultrasonic welding parameters are set; s7, the mechanical arm drives the ultrasonic welding head, the pre-pressing structure and the pressure maintaining structure to move downwards; and S8, the mechanical arm drives the ultrasonic welding head, the pre-pressing structure and the pressure maintaining structure to conduct continuous ultrasonic welding according to the set welding path and welding parameters, and after ultrasonic welding is completed, a power source is turned off. According to the invention, high-quality and high-efficiency connection of the composite material is realized.

The utility model relates to the field of servo ultrasonic welding machines, and discloses a welding head quick replacement device of a servo ultrasonic welding machine, which comprises a base, a welding machine body is arranged on the upper portion of the base, an amplitude-change pole is arranged on the lower portion of the welding machine body, a welding head is arranged on the outer side of the amplitude-change pole, and a quick release mechanism is arranged on the upper portion of the welding head. The quick dismounting mechanism comprises a dismounting assembly and an auxiliary assembly, the dismounting assembly comprises a connecting seat, the connecting seat is fixedly connected to the upper portion of the welding head, and a guide groove is formed in the outer side of the connecting seat. According to the utility model, through the cooperative use of the quick release mechanism and the welding head, when the welding head needs to be replaced, the operation ring slides in the guide groove and drives the limiting ring to rotate, so that the clamping state of the limiting bead and the limiting groove is controlled, and compared with a traditional bolt fastening or threaded groove connection mode, the time for replacing the welding head is saved, the production efficiency is improved, and the production cost is reduced. Meanwhile, abrasion of connecting parts is reduced.

The invention discloses an ultrasonic welding quality online detection system and method, and belongs to the technical field of laser non-contact measurement. According to the invention, the laser vibration measurement probe is rigidly coupled to the welding head to construct a follow-up-common-optical-path measurement unit, so that synchronous acquisition of vibration signals with zero mass loading is realized; further extracting an attenuation section after welding is finished from the signal, and inverting an equivalent modal damping ratio representing an interface energy dissipation state based on an exponential attenuation model; meanwhile, multi-dimensional physical indexes such as an energy transfer efficiency index Itrans and an input stability index Iin are calculated, and in combination with an energy absorption state index, collaborative fusion is carried out through a weighted fusion formula to obtain a comprehensive quality score; and finally, realizing quality attenuation early warning based on time sequence trend analysis of a scoring sequence. On-line sensing of the deep dynamic state in the welding process is achieved, the early defect recognition sensitivity and the system anti-interference capacity are remarkably improved, and the predictive maintenance capacity of quality degradation is achieved.

The invention discloses plastic product ultrasonic welding equipment, and relates to the technical field of plastic ultrasonic welding, the plastic product ultrasonic welding equipment comprises a workbench, the top of the workbench is connected with a welding machine assembly through a lifting module, the welding machine assembly comprises an amplitude-change pole, the upper end of the amplitude-change pole is provided with an energy converter, the top of the workbench is provided with a mold assembly, and the mold assembly is connected with the workbench. The die assembly comprises a hollow lower die and a hollow upper die, and the upper die is fixedly connected to the lower end of the amplitude-change pole. According to the ultrasonic welding equipment for the plastic products, during ultrasonic welding, the lower die and the upper die can be adaptively adjusted according to the surface shape of a workpiece, the workpiece is limited, meanwhile, the workpiece can be subjected to negative pressure adsorption, the ultrasonic welding equipment is more stable and reliable, the dies do not need to be replaced, and the workpiece does not need to be centered; the ultrasonic welding efficiency can be improved; and after ultrasonic welding is completed, the ultrasonic welding strength of the plastic product can be conveniently detected, and the ultrasonic welding quality is guaranteed.

The invention discloses a precise low-stress photovoltaic ultrasonic welding control method and system, and the method comprises the steps: evaluating the welding quality and damage risk between a welding strip and a battery piece based on a finite element model and the distribution of pressure applied to the welding strip by an ultrasonic vibration welding head, the pressure distribution with the evaluation result meeting the standard is selected as optimal pressure distribution; in the welding process, the actual temperature of a welding head and the actual molten pool form of a welding point are observed, and the actual temperature and the pressure applied to the welding head are correspondingly adjusted; and after welding is completed, if the detected multiple indexes all reach the standard, it is determined that welding is qualified. By the adoption of the technical scheme, distribution of pressure applied to the welding strip and the battery piece is evaluated in advance through the finite element model, proper pressure distribution is selected, and the damage risk is reduced while the welding quality is guaranteed; and the welding quality is improved based on observation and adjustment of the temperature and the molten pool form in the welding process.

Disclosed is a method for anomaly detection based on ultrasonic welding data according to various embodiments of the present invention. The method includes acquiring ultrasonic welding data, generating relational data based on a correlation between data items included in the ultrasonic welding data, generating input data based on the ultrasonic welding data and the relational data, and processing the input data as an input of a graph neural network (GNN) model to calculate an outlier score and detecting an anomaly in ultrasonic welding equipment based on the calculated outlier score, and the GNN model includes an embedding model that captures a unique embedding vector corresponding to each piece of data included in the input data, and an attention module that calculates an attention weight based on the embedding vector corresponding to each piece of data and predicts a next value of a graph based on the calculated attention weight.

The invention relates to the technical field of thermoplastic composite material welding, in particular to a composite material continuous ultrasonic welding method based on an interface microstructure, which comprises the following steps: carrying out positioning treatment on the surface of a thermoplastic composite material to be welded, and selecting welding parameters according to the property of the thermoplastic composite material to be welded; a microstructure texture is introduced into a to-be-welded interface of the thermoplastic composite material, and the microstructure texture has parameterized geometric properties; a flexible and continuous energy conduction item is arranged between the microstructure texture and the substrate on the opposite side, and molten resin is in a super-infiltration state in the initial welding stage through the ultrasonic vibration effect; and welding is completed under the set welding parameter condition. The welding performance of the thermoplastic composite material is improved, and a feasible technical path is provided for rapid assembly of complex structures in the future.

The invention relates to the field of hygienic product equipment, in particular to an ultrasonic welding device for front waist stickers of paper diapers, which comprises an ultrasonic spot welding unit, an ultrasonic strip welding unit and a conveying unit. The conveying unit is provided with a porous conveying belt capable of intermittently moving on the adsorption box, and the ultrasonic spot welding unit is provided with two adsorption transfer spot welding sets capable of intermittently rotating. By means of a rectangular-ambulatory-plane adsorption box of an adsorption box assembly of the ultrasonic spot welding unit and a plurality of round-point-shaped ultrasonic welding heads of a spot welding assembly, the front waist tape can be adsorbed, the front waist tape can be transferred to a paper diaper raw sheet on a first station to be positioned through intermittent rotation, and the front waist tape can be spot-welded to the paper diaper raw sheet; by means of the strip-shaped ultrasonic welding heads arranged at the two ends and in the middle of the pressing plate of the ultrasonic strip welding unit respectively, strip pressing welding can be conducted on the front waist tape laid on the paper diaper raw sheet on the secondary station, so that the binding force of the front waist tape and the paper diaper raw sheet can be enhanced, and the firmness and durability of the paper diaper in the wearing process can be improved.

The invention discloses a continuous ultrasonic welding method based on cooperation of a bionic interlocking microstructure and an energy conduction item. The continuous ultrasonic welding method comprises the following steps: cleaning a to-be-welded surface of a thermoplastic composite material workpiece; the method comprises the following steps: preparing a dual-scale bionic interlocking microstructure with a micron-scale circular convex claw-shaped array and a nano groove on the surface of a workpiece; a microstructure with the specific geometrical morphology is arranged on the surface of the other workpiece; carrying out microstructure etching on the energy conduction item, placing the microstructure energy conduction item between two workpieces, and applying vibration and pressure through a continuously moving ultrasonic welding head after butt joint, so that the interface resin is molten and filled into the bionic microstructure; and a mechanical interlocking interface is formed after pressure maintaining and cooling. Through collaborative design of the bionic microstructure and the energy conduction item, the interface bonding strength is remarkably improved, the problems of uneven energy, weak bonding and the like in traditional welding are solved, and the method is suitable for high-quality connection and repair of composite material components in the fields of aerospace, automobiles and the like.

A method of forming a resilient unit, such as a mattress core, comprises successively joining together a plurality of discrete strings of pocketed springs, side to side, to build an array of such springs, wherein successive discrete strings are introduced to the array alternately from substantially opposed directions. A first string (130a) of springs (110) is brought from a left side of the drawing towards the centre in the direction of arrow A1. A second string (130b) is then brought from the opposite side, in the direction of Arrow A2. Ultrasonic welding tools then join the strings together.

An ultrasonic weld / seal-cut system having an ultrasonic cutting horn with a flat ultrasonic booster to provide increased stiffness to the ultrasonic cutting horn (sonotrode) and allowing for wider cutting applications while minimizing deflections of the cutting horn under force. The flat booster has a small footprint but provides high stiffness to the cutting horn. The cutting horn and booster can be a unitary piece and can be manufactured, for example, by machining a solid plate of metal into the cutting horn with integrated booster.

An ultrasonic welding device includes an anvil provided so that an overlapping surface of an electrode tab and an electrode lead, which are provided in an electrode assembly, are configured to be disposed thereon; a horn configured to weld the overlapping surface disposed on the anvil; and an inspection member configured to inspect a horizontal level of an opposing member with respect to the overlapping surface, based on an overlapping surface horizontal value that is a horizontal value of the overlapping surface with respect to a predetermined reference surface and an opposing horizontal value that is a horizontal value of the opposing member, which is one of a welding part of the horn configured to face the overlapping surface and a disposing part of the anvil, on which the overlapping surface is configured to be disposed, with respect to the predetermined reference surface.

A battery is provided with a metal joined body in which a plurality of metal members are joined by ultrasonic welding. This battery is provided with: an electrode group comprising electrodes and a separator laminated on each other; a collector plate joined to the electrode group; and an exterior body that accommodates the electrode group and the liquid electrolyte. The electrode has a collector foil and an active material layer. The collector foil as a metal member and the collector plate (220) as a metal member are joined by ultrasonic welding. The collector plate (220) has a plurality of pressing marks (231) formed by ultrasonic welding, and a laser mark (233) formed by overlapping the plurality of pressing marks (231). The pressing mark (231) and the laser mark (233) are formed on the surface of the collector plate (220) on the opposite side to the joining surface of the collector foil.

The invention provides a self-adaptive ultrasonic welding method for an in-situ energy-conducting rib and application of the self-adaptive ultrasonic welding method, and belongs to the technical field of welding machining. According to the method, low-amplitude pulse ultrasonic waves and a temperature field are precisely regulated and controlled, the defects of weld pores, incomplete fusion and the like are reduced, gradient pressure relief and nitrogen forced cooling are combined, the thermal stress cracking risk is reduced, the in-situ energy guide ribs pass through a directional molecular chain and a fiber network, the ultrasonic propagation loss is reduced, and the fusion efficiency is improved; on the basis of amplitude switching of dissipation modulus (E '') real-time monitoring, energy waste is avoided, the welding period is shortened, a gradient transition structure is formed, weld hardness distribution is uniform, crystallinity and heat resistance are improved, process stability is improved, closed-loop control of the melting process is achieved, abnormal working condition response time is shortened, and energy consumption of a nitrogen recovery system is reduced. Laser roughening replaces sand blasting, so that the cost is effectively reduced, and the waste gas filtering efficiency is improved.

This invention belongs to the field of battery technology and discloses an ultrasonic welding head structure, ultrasonic welding equipment, and a battery. The ultrasonic welding head structure includes a first welding head and a second welding head. The thickness of the first electrode tab is t1. The first welding head includes a first welding head body and a first welding tooth. The first welding tooth is disposed on the first welding head body and has a tooth height of h1, a1≤h1 / t1≤b1, where a1 is a first preset minimum value and b1 is a first preset maximum value. The thickness of the second electrode tab is t2. The second welding head includes a second welding head body and a second welding tooth. The second welding tooth is disposed on the second welding head body and has a tooth height of h2, a2≤h2 / t2≤b2, where a2 is a second preset minimum value and b2 is a second preset maximum value. The hardness of the first electrode tab is less than that of the second electrode tab, and the thickness of the first electrode tab is greater than that of the second electrode tab, a1>a2, b1<b2, in order to improve the welding yield of the first electrode tab and the first adapter piece.

The pin is melted by receiving ultrasonic vibration from the ultrasonic welding device. The pin is made of a bioabsorbable material. The pin has a shaft portion and a head portion. The shaft portion includes a first end portion and a second end portion in an axial direction. The head portion is formed at the first end portion. A diameter of the head portion is greater than a diameter of the shaft portion at the first end portion. A taper in which the diameter of the shaft portion decreases from the first end portion to the second end portion is formed in the shaft portion.

A sonotrode for ultrasonically welding a conductive pin to a workpiece is provided. The sonotrode includes a body portion configured to be coupled to an ultrasonic converter. The body portion terminates at a tip portion, the tip portion defining a mating feature configured to mate with a corresponding mating feature of a base portion of the conductive pin. The conductive pin is oriented in a predetermined configuration by mating of the mating feature with the corresponding mating feature of the base portion.

The invention relates to the technical field of ultrasonic welding equipment, in particular to a four-direction torsion welding transducer adaptive to bilateral parallel vibrator layout and a method thereof, and the four-direction torsion welding transducer comprises at least four groups of ultrasonic vibrators and an amplitude variation assembly; the amplitude changing assembly comprises a clamping amplitude changing rod and at least four torsion amplitude changing rods, the at least four torsion amplitude changing rods are symmetrically arranged on the two sides of the clamping amplitude changing rod, the torsion amplitude changing rods located on the same side of the clamping amplitude changing rod are parallel to one another, and the torsion amplitude changing rods connected to the same end of the clamping amplitude changing rod coaxially correspond to one another; the ultrasonic vibrators are in one-to-one correspondence with the torsion amplitude-change poles, and the ultrasonic vibrators are coaxially connected to the outer ends of the torsion amplitude-change poles; the at least two ultrasonic vibrators located at the different ends and on the different sides of the clamping amplitude-change pole generate vibration energy which is equal in magnitude and opposite in direction so as to form torsional moment of the clamping amplitude-change pole; the welding energy can be doubled, the welding energy dead angle can be avoided, and the welding requirements of complex shapes and multi-material systems can be met.

The utility model discloses a pet glove forming machine which comprises a first unreeling shaft and a second unreeling shaft and is characterized by further comprising an ultrasonic welding assembly, a cutting assembly, a glove guiding and folding assembly, a transferring assembly and a spraying assembly which are sequentially arranged. Adsorption holes are formed in the first conveying belt, a negative pressure assembly is arranged corresponding to the first conveying belt, a pressing wheel and a guide forming plate which are arranged in a matched mode are arranged on a conveying path of the first conveying belt, the spraying assembly comprises a second conveying belt, a spraying pipe is arranged on a conveying path of the second conveying belt, and spraying holes are formed in the spraying pipe. The pet glove forming device is simple in structure and reasonable in design, automatic forming of pet gloves can be conveniently achieved, and the structure of the folding assembly is simplified.

The invention relates to the technical field of ultrasonic welding, in particular to ultrasonic welding equipment for sealing an interface of a gas generator, which comprises a platform, a control box, a push cylinder I and an ultrasonic transducer, the ultrasonic welding device further comprises a welding module, a pushing feeding mechanism and a heat dissipation mechanism, the welding module is installed at the lower end of the ultrasonic transducer, a feeding opening is formed in the platform, the pushing feeding mechanism is installed below the platform and located below the feeding opening, and the welding module is located above the feeding opening and the pushing feeding mechanism. The pushing feeding mechanism is used for loading the gas generator and pushing and feeding the gas generator to the position above the platform through the feeding opening, and the heat dissipation mechanism is arranged on the welding module and the pushing feeding mechanism and used for dissipating heat of the upper portion and the lower portion of the gas generator; the upper portion and the lower portion of the gas generator are efficiently cooled through the cooling mechanism, the temperature of the gas generator is prevented from being too high, and safety and practicability are improved.

An elastic unit 1000 comprises two outer portions 1100, 1200 of a spacer fabric and an elastic core 1300 therebetween. The elastic core includes an array of elastic elements, in which example, the elastic elements are metal coil springs S in 10 separate pockets P. Portions 1100, 1200 of the spacer fabric are joined together along the edge of the unit 1000, for example by ultrasonic welding at a location W, and the portions 1100, 1200 may also be joined 15 using other methods.

The open-close type mutual inductor easy to assemble comprises a first left shell, a first right shell, a second left shell and a second right shell, the first left shell and the first right shell are spliced in a left-right sealing mode to form an upper shell module, and the second left shell and the second right shell are spliced in a left-right sealing mode to form a lower shell module. One end of the upper shell module is rotationally connected with one end of the lower shell module, the other end of the upper shell module and the other end of the lower shell module are clamped and fixed to achieve up-down opposite splicing, U-shaped grooves used for being matched with the side wall of a wire are formed in the splicing faces of the upper shell module and the lower shell module respectively, an upper U-shaped iron core is installed in the upper shell module, and a lower U-shaped iron core is installed in the lower shell module. A lower U-shaped iron core is mounted in the lower shell module; when the upper shell module and the lower shell module are oppositely spliced up and down, the upper U-shaped iron core and the lower U-shaped iron core are configured to be sealed through ultrasonic welding so as to be connected to form a closed loop. According to the open-close type mutual inductor, the assembling process is simpler, more convenient and faster, and the assembling efficiency and safety are improved.

The embodiment of the invention provides a multi-station rotating disc type VDA connector assembling device, and relates to the technical field of automatic welding and assembling equipment, the multi-station rotating disc type VDA connector assembling device comprises a rack, a rotating disc is arranged on the rack, six stations are arranged on the edge of the rotating disc at intervals in the circumferential direction, and each station comprises a product positioning tool. The machine frame is further provided with a feeding detection work station, a welding work station, an oil injection work station, an air tightness detection work station, a clamp spring installation work station and a finished product detection discharging work station which correspond to the six work stations, the feeding detection work station comprises a first visual assembly installed on the machine frame, and the welding work station comprises an ultrasonic welding mechanism installed on the machine frame. The finished product detecting and discharging work station comprises a second visual assembly and a discharging mechanism which are installed on the machine frame. Multiple procedures are integrated through the multi-station rotary table, welding and assembling integrated operation is achieved, and the production efficiency is improved.

The invention discloses an ultrasonic welding pseudo soldering detection system and method, and relates to the technical field of ultrasonic welding detection, the system comprises a hardware assembly and a visual software module, the hardware assembly comprises an upper camera, a lens, an annular light source, a PLC lower computer and the like, and the visual software module configures program instructions such as initialization, image acquisition, feature detection and the like; according to the detection method, images are collected through the upper camera, detection of the expanded material size, the grid edge width, the grid area and the peripheral overflow area is completed in sequence, and pseudo soldering is automatically judged in combination with a visual algorithm. Non-destructive online full detection is achieved, the detection precision reaches + / -0.01 mm, the single-station detection rhythm is smaller than or equal to 1 second, the problems that traditional detection products are large in waste and high in misjudgment risk are solved, the method is suitable for new energy power battery copper-aluminum bar metal ultrasonic welding products, and the detection efficiency and the quality control level are improved.

The invention provides a welding control method, an ultrasonic welding device and a computer readable storage medium. The method comprises the steps that a welding instruction is received, and a welding head is controlled to move in the welding direction; when the welding head is controlled to move towards the welding position, a pressure sensor is used for detecting the pressure value of the welding head in real time; acquiring a first pressure value detected by the pressure sensor, and acquiring a second pressure value detected by the pressure sensor after a preset time period; judging whether a difference value between the first pressure value and the second pressure value is greater than a first preset value; if yes, the welding head is controlled to stop moving in the welding direction, and the welding head is controlled to move towards the initial position; when the welding head is controlled to move close to the preset position, the first preset value is in positive correlation with the first distance, and the first distance is the distance between the welding head and the preset position. An intelligent welding system may use the method. Sudden stop reset caused by the fact that the ultrasonic welding device detects pressure at the beginning can be avoided, and normal use during welding is guaranteed.

The application relates to a sealing assembly of a wiper motor, which comprises an output shaft for driving a wiper arm of a vehicle to swing back and forth, a water delivery pipe arranged in the shaft hole of the output shaft, one end of the water delivery pipe extending out of the output shaft, the other end of the water delivery pipe being provided with a check ring, the check ring comprising a limiting shaft section and a flange shaft section, the limiting shaft section being in interference fit in the shaft hole of the water delivery pipe, the flange shaft section being abutted against the shaft end face of the water delivery pipe, the check ring being connected and fixed between the limiting shaft section and the shaft hole wall of the water delivery pipe and between the shaft end face of the flange shaft section and the shaft end face of the water delivery pipe through ultrasonic welding, a water spraying rod being inserted into the shaft hole of the water delivery pipe through the inner hole of the check ring, the water spraying rod being in sliding fit with the inner hole of the check ring, a sealing ring being arranged between the water spraying rod and the water delivery pipe, the inner circle of the sealing ring being in interference fit with the water spraying rod to form a seal, the shaft hole of the water delivery pipe being a stepped hole, and the sealing ring being located between the step face of the stepped hole and the limiting shaft section of the check ring.

The utility model belongs to the technical field of glasses production, and particularly relates to a glasses temple ultrasonic welding device which comprises a base, a fixing frame arranged on the base, and a through groove formed in the fixing frame. The ultrasonic welding device comprises an energy supply assembly and a welding head; the clamping device comprises a fixed clamping assembly and a movable clamping assembly, the fixed clamping assembly is arranged on the base, the movable clamping assembly is arranged on the fixing frame and connected with the sliding groove, and the movable clamping assembly is located on the upper side of the fixed clamping assembly; wherein the energy supply assembly is arranged on the base and located on one side of the fixed clamping assembly, and the welding head is arranged on the movable clamping assembly.