1953 results about "Ultrasonic welding" patented technology

A sonotrode configured for use in an ultrasonic welding system is provided. The sonotrode includes a body portion terminating at a tip portion, the tip portion including a working surface. The working surface defines an aperture configured to hold a conductive pin during an ultrasonic welding process. The working surface also defines a plurality of linear depressions. Each of the plurality of linear depressions follows a path that does not intersect the aperture.

An ultrasonic welding system is provided. The ultrasonic welding system includes a sonotrode configured to ultrasonically weld a conductive pin to a workpiece. The ultrasonic welding system also includes a pin feeding system configured to feed the conductive pin to the sonotrode, the pin feeding system including a pin supply tube.

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 discloses ultrasonic high-speed welding equipment and a welding method.The equipment comprises a rack, an electric control mechanism, an executing mechanism and a monitoring mechanism, and the executing mechanism comprises a first lifting assembly, a linear driving part, a welding executing assembly and a second lifting assembly; the linear driving piece is used for generating pressure for pressing the welding execution assembly on the to-be-welded piece, and the welding execution assembly is used for providing high-frequency vibration to achieve ultrasonic welding; the monitoring mechanism is used for monitoring the pressure of the linear driving part on the welding execution assembly, the pressure of the second lifting assembly on the bottom die, the real-time position of the welding execution assembly and the real-time position of the bottom die. The electric control mechanism is used for controlling the execution mechanism to operate according to a preset program and monitoring data obtained from the monitoring mechanism. According to the scheme, the welding efficiency can be improved, and pseudo soldering is reduced.

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.

An ultrasonic welding machine, which is configured as: driving a triple assembly (2) to move in a Z direction by a multi-position cylinder (4) disposed on the ultrasonic welding machine, so as to achieve graded down pressing of a welding head (21) to prevent the workpiece to be welded from damage caused by possible situations where the welding head (21) first moves to a working position while a welding seat (3) has not reached a supporting position, which is due to the inability to strictly control the order of arrival at the working position of the welding head (21) and the welding seat (3) when the welding head (21) and the welding seat (3) move towards the working position simultaneously. An ultrasonic welding method is further related. The welding method using the ultrasonic welding machine significantly improves efficiency while ensuring welding quality.

The invention relates to the technical field of high polymer materials, in particular to a low-warpage PBT / PC composite modified material and a preparation method thereof. The composite material is prepared from the following raw materials: PBT resin, PC resin, a filler, an ester exchange inhibitor, a flexibilizer, a compatilizer, an antioxidant, a lubricant, a flowable agent and glass fibers. The preparation process comprises the steps of resin drying and mixing, additive premixing, melt blending extrusion and the like, is simple and controllable in flow and is suitable for large-scale production. The composite material prepared by the invention has high strength, high toughness, low warping degree and excellent processability, can be used for ultrasonic welding, reduces after-shrinkage of the material, solves the problem of melt cooling film sticking, and meets the requirements of the market on high-precision and high-stability engineering plastics.

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.

An ultrasonic welding system is provided. The ultrasonic welding system includes a support structure for supporting a workpiece. The ultrasonic welding system also includes a weld head assembly including an ultrasonic converter carrying a sonotrode. The ultrasonic welding system also includes a conductive pin supply configured to provide a plurality of conductive pins for welding using the sonotrode.

The invention belongs to the technical field of ultrasonic welding, and discloses a resonance bottom die for ultrasonic welding, a resonance bottom die design method and a welding system. The resonance bottom die for ultrasonic welding comprises a bottom die body, the bottom die body is arranged on a workbench of an ultrasonic welding system, and the bottom die body is provided with a welding working face used for bearing a workpiece; the material and the geometric dimension of the bottom die body determine that the natural resonant frequency of the bottom die body is matched with the preset ultrasonic working frequency of the ultrasonic welding system, the bottom die body can generate resonance in the preset direction when being excited by an upper welding head in the ultrasonic welding system, and the welding working face is arranged at the vibration antinode position. According to the resonance bottom die for ultrasonic welding, in the ultrasonic welding process, the bottom die body can generate resonance which is the same as an upper welding head in frequency and opposite to the upper welding head, so that relative movement and friction between workpieces at a welding interface are increased, the welding energy transfer efficiency is improved, and finally the effects of improving the welding quality and improving the welding efficiency are achieved.

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 invention discloses rotating disc type ultrasonic welding equipment which comprises a rack, a rotating disc, a supporting device and an ultrasonic welding device arranged on the peripheral side of the rotating disc, the rotating disc is rotatably installed on the rack, and a supporting bolt protruding out of the bottom face of the rotating disc is arranged on the rotating disc. The supporting device abuts against the supporting bolt through a supporting piece capable of ascending and descending, then when the ultrasonic welding device conducts downward pressing welding, the mounting base can be supported through the supporting device, and it is avoided that the rotating disc deforms due to downward pressing; the mounting seat comprises a bottom plate part which is mounted by a leveling screw, so that the turntable and the mounting seat can be kept horizontal through the leveling screw, and meanwhile, an elastic gasket is also arranged on the mounting seat, so that when the mounting seat is pressed downwards, the workpiece can be ensured to keep the welding air tightness even if the workpiece is slightly inclined through elastic compression of the elastic gasket.

An ultrasonic weld / seal-cut system having an ultrasonic cut stack assembly, including an ultrasonic cutting horn with a transducer arranged to impart an ultrasonic energy to the ultrasonic cutting horn (sonotrode) and allow for wider cutting applications while minimizing deflections of the cutting horn under force. The cutting horn has a cutting feature configured to contact a part to be cut and a major surface adjacent to the cutting feature and a booster. The booster can have a generally flat shape and a major surface that is generally coplanar with the major surface of the ultrasonic cutting horn. One or more controllers can be operatively coupled to the ultrasonic cut stack assembly and configured to apply ultrasonic energy through the ultrasonic cut horn via the transducer to cause the cutting feature to move back and forth along its length as the ultrasonic energy is applied by the transducer to the cutting horn. The cutting horn and booster can be a unitary piece, and can be produced by machining a solid plate of metal into the cutting horn with integrated the booster.

An ultrasonic welding system is provided. The ultrasonic welding system includes a sonotrode configured to ultrasonically weld a conductive pin to a workpiece. The ultrasonic welding system also includes a pin feeding system configured to feed the conductive pin to the sonotrode, the pin feeding system including a pin supply tube.

The invention discloses a warning lamp and a preparation method thereof, and relates to the technical field of electrical equipment.The preparation method of the warning lamp comprises the steps that a welding head of an ultrasonic welding device is controlled to move to make contact with a second shell; a first welding parameter is obtained, and the welding head is regulated and controlled to act based on the first welding parameter; a monitoring unit is controlled to obtain a machining signal in real time, and the melting state of the welding structure is confirmed based on the machining signal; and under the condition that the welding structure reaches the complete melting state, a second welding parameter is obtained, and the welding head is regulated and controlled to act based on the second welding parameter. According to the technical scheme, sufficient welding machining of the warning lamp shell is achieved, and the production qualification rate and reliability of the warning lamp are improved.

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.

In a method of using ultrasonic welding for fusion bonding of thermoplastic composites, an energy director is formed in place on a first thermoplastic substrate. The energy director can be protrusions arranged in a grid pattern over the entire weld region. The energy director can have protrusions of varying thicknesses to account for unevenness along the weld interface. Forming the energy director can be carried out by placing thermoplastic film on the first thermoplastic substrate, melting the thermoplastic film, and stamping the thermoplastic film with an energy director stamp. After the energy director is formed, the first thermoplastic substrate is ultrasonically welded to a second thermoplastic substrate with the energy director sandwiched between the first and second thermoplastic substrates.

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.

The invention discloses a preparation method of a high-strength low-resistance functional aluminum current collector, and relates to the technical field of lithium battery manufacturing. The preparation method of the functional aluminum current collector comprises the following steps: adding water into a binder for dispersion, adding aluminum powder and a dispersing agent for high-pressure homogeneous dispersion, adding conductive carbon black and graphite step by step, stirring to obtain carbon-coated slurry, coating the carbon-coated slurry on a tab blank area of the current collector and a welding surface, in contact with the current collector, of an adapter foil, and carrying out vacuum drying to obtain the functional aluminum current collector. And finally, the functional aluminum current collector is prepared through ultrasonic welding. The functional aluminum current collector prepared by the invention has the characteristics of high strength and low resistance, solves the problems of high resistance and low welding strength of the traditional functional aluminum current collector, and is suitable for manufacturing high-performance lithium batteries.

The utility model belongs to the technical field of batteries, and particularly relates to a connecting structure of a pole lug and a pole column and a battery, the connecting structure comprises the pole column, the pole lug and a conductive colloid, and the pole column is connected with the pole lug through the conductive colloid; the pole comprises a pole body and a connector, the connector comprises a body, a first surface and a second surface, the first surface and the second surface are oppositely arranged on the body, and the pole body is connected with the first surface; a penetrating groove is formed in the second face, a communicating hole is formed in the body, and the penetrating groove is communicated with the communicating hole; the tab comprises a penetrating part and a first bending part, the first bending part is connected with the penetrating part and is bent relative to the penetrating part, the penetrating part penetrates into the penetrating groove, the first bending part penetrates into the communicating hole, and the conductive colloid is at least arranged in the communicating hole. And the phenomenon of unstable connection or low product quality caused by a welding connection mode is avoided, the problem of short circuit of the battery core caused by the welding mode is avoided, the yield of the battery is effectively improved, and the use safety of the battery is ensured.

The present invention discloses an impeller rotor assembly with a plastic structure, which relates to the technical field of water pumps. The impeller body is composed of an impeller upper half and an impeller body. The impeller body is formed by ultrasonic welding the impeller upper half and the impeller body. The impeller body is injection-molded as a whole. The shaft tube and the motor rotor in the impeller body are embedded in the impeller body during injection molding. After welding, the motor rotor is press-fitted with two upper and lower graphite bearings. The upper and lower graphite bearings are identical. The shaft tube in the impeller body is a centrally symmetrical structure. A balancing hole is provided on the impeller body for balancing the water pressure between the inside and outside of the impeller body. The plastic structure impeller rotor assembly provided by the present invention adopts an integrated structure, which has a simple structure and is easy to assemble. It relatively saves production and manufacturing costs, and can effectively balance the uneven water pressure inside and outside the impeller. It can be widely used in products of cooling systems.

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 welding equipment, and particularly discloses welding equipment for producing and manufacturing a vehicle door inner handle, the purpose of positioning complex parts is achieved, the equipment is integrally supported by an equipment bottom plate and an equipment bracket, a welding machine device moves a welding module, and the welding module is used for welding the vehicle door inner handle. An ultrasonic welding module and a laser welding module are integrated, so that systematic welding is conducted on the inward-pulling handle, the machining process is shortened, the inward-pulling handle is fixed through a fixing device, complex parts are positioned through corresponding assemblies of the fixing device, positioning during welding is completed, and therefore the welding efficiency is ensured; and cooling is conducted during welding through the pneumatic assembly, so that the welding quality is guaranteed, and the welding quality is guaranteed after welding is completed.

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.

The invention relates to the technical field of electric vehicle welding, and discloses a welding device for welding electric vehicles, a lifting air cylinder is vertically installed in a welding platform and located below a positioning plate, a lifting rod is movably arranged in the lifting air cylinder upwards, and the end, stretching out of the welding platform upwards, of the lifting rod is connected with a detachable end cover. The upper end of the detachable end cover is connected with a female seat. A lifting cylinder is started, a lifting rod extends out, a mother seat linearly ascends along two groups of guide side plates until a son seat is attached to a positioning plate and a peeling part abuts against a welding head, then the lifting rod continuously extends out, the mother seat continuously ascends, and a plurality of groups of buffer springs between the mother seat and the son seat are extruded; active movement of the ultrasonic welding head is replaced with a passive welding mode, on one hand, the service life of the ultrasonic welding head and the amplitude-change pole is prolonged, the stability of the ultrasonic welding head during working is improved, and on the other hand, the contact acting force among the ultrasonic welding head, the amplitude-change pole and the buffer spring is automatically adjusted and buffered through the buffer spring.

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.