28 results about "Welding process" patented technology

The invention relates to a car steel-aluminum splicing joint welding method. The car steel-aluminum splicing joint welding method is characterized by comprising the following steps that a first workpiece and a second workpiece required to be subject to splicing welding are provided; secondly, the first workpiece and the second workpiece are vertically spliced and clamped; thirdly, a laser cuttingsystem is provided; fourthly, a laser molten brazing welding system is provided, and a laser welding head, a wire feeding head and a laser cutting head in the laser molten brazing welding system are arranged in series and column in the welding direction; fifthly, the laser cutting system is started, and high-energy laser beams formed through focusing of the laser cutting head irradiate the surfaceof the first workpiece vertically; sixthly, the laser molten brazing welding system is started, the laser welding head and the wire feeding head are subject to molten brazing welding along the trackof the laser cutting head, and welding process is finished. The invention further discloses a car steel-aluminum splicing joint welding system. Compared with the prior art, the method and system havethe beneficial effects of being good in welding effect and simple in process.

The invention discloses a laser welding method of a CoCrCuFeNi high-entropy alloy. The laser welding method of the CoCrCuFeNi high-entropy alloy is characterized in that an alloy plate is provided with a V-shaped groove, the surface of the welded groove alloy is ultrasonically cleaned for 30 minutes by acetone, then the groove surface is coated with TiO metal slurry for the first time, and after natural drying, the TiO metal slurry arranged on the groove in a coating mode is subjected to laser cladding; and secondary coating of the TiO metal slurry is carried out, after natural drying is carried out, laser welding is carried out, and welding is completed. The welding method can better solve the crack problem in the welding process and improve the welding quality.

The invention relates to a welding process of aluminum-plastic windows and doors, belonging to the technical field of frame structure processing of aluminum plastic materials. The invention is characterized in that a positioning plate and an end face milling cutter are produced according to the cross section and characteristics of the aluminum plastic profiles. The welding process has the advantages of eliminating the corner connector used in plastic profile part, reducing cost, facilitating processing, ensuring strength and beautiful appearance of the corner connector of aluminum-plastic windows and doors, and improving the leak tightness of windows and doors.

The invention discloses a method and a device for controlling laser welding seam holes. The method comprises the steps as follows: during the laser welding, adopting a gas suction manner to pump out steam inside a keyhole and keeping the keyhole clear. The device comprises a set of gas suction device, wherein the gas suction device is connected with a gas pipe through a pipeline when working, and fixed on a laser head; and a suction nozzle of the gas pipe is aligned above a welding seam. The method and the device can effectively solve the hole problem during the laser deep penetration welding process. The method can be applied to laser welding for different materials, different plate thicknesses, and different connector forms, and particularly has a good effect on controlling the holes in the thick plates, sandwich plates and surface coating plates. The device is simple and feasible, and low in cost. In a word, the method and the device can be conveniently applied to the production and play an excellent effect by only well adjusting the relative location of the suction nozzle of the gas pipe and the welding seam.

To prevent poor quality of weld in a welding process for a thick material or for welding a gap, the laser welding apparatus has granular flux (3) supplied to a side of the base material (W) opposite to the side where a laser beam is directed and a pressing member (5) that presses the granular flux onto the base material (W) upon receiving fluid therein. Either the flux prevents the laser beam that coming through the base material (W) from penetrating the flux or the thickness of molten flux is selected so that the laser beam coming through the base material (W) does not penetrate the molten flux.

The invention discloses a method capable of improving the explosive welding weldability of a large-thickness high-strength alloy. A substrate and a flying plate which can be subjected to heat treatment and enhanced obviously are subjected to explosive welding; the lower limit of an explosive welding window can be effectively reduced through a soft section, the problems that when the large-thickness high-strength alloy is directly used for explosive welding, the welding window is small, and the upper limit of explosive welding is reduced are solved, and weldability is enhanced; and by means of flying plate deformation in the explosive welding process, the heat treatment temperature can be reduced, the precipitation process can be effectively promoted, and the high performance can be easily obtained in the subsequent heat treatment process. In addition, if the soft flying plate is used, the torque needing to be overcome is small, in the explosive welding process, under the same requirement for the collision speed, the explosive load required by the soft flying plate is small obviously, and therefore the explosive usage quantity required in the explosive welding process is small, and greater environment protection is achieved. The performance of a composite obtained after explosive welding can be continuously adjusted within the required range according to the service conditions and the usage requirements.

The invention relates to the technical field of welding, and discloses a circular radial butt weld damage torque testing method which comprises the following steps: S1, determining actual welding parameters according to an actual transmission structure; S2, establishing a model; S3, respectively manufacturing a first sample piece and a second sample piece based on the model, and selecting a locking assembly; S4, assembling the first sample piece, the second sample piece and the locking assembly; S5, welding the to-be-welded weld joint through an actual welding process, and forming a test weldjoint; S6, manufacturing a clamp; and S7, clamping the test transmission structure to a torque testing machine and carrying out a damage torque test. The circular radial butt weld damage torque testing method is easy to operate and low in detection cost, the maximum bearing torque of the actual weld can be accurately evaluated, an actual transmission structure is prevented from being designed toostrongly, and therefore the manufacturing cost of the actual transmission structure is reduced.

The invention relates to a single-side welding machine used for an electrostatic dust collector moving electrode plate. The single-side welding machine comprises a rack (3), wherein the rack (3) is connected with a motor (2); a conveying device (9) is horizontally arranged on the upper side of the rack (3); the motor (2) is connected with the conveying device (9) by a transmission device (1) in a transmission fitting way; a portal frame (12) is arranged above the rack (3); the portal frame (12) is fixedly connected with a group of cylinders (7); piston rods of the cylinders are downwards arranged; the piston rod of each cylinder (7) is connected with a resistance spot welding machine (13); a control device (8) is also arranged at one side of the rack (3); and the control device (8) is connected with the cylinders (7) and the resistance spot welding machines (13) in a control way. The single-side welding machine used for an electrostatic dust collector moving electrode plate has the advantages that the production efficiency is high; the welding stability is ensured; the automation of the welding process is realized; and the production cost is reduced.

The present invention discloses a continuously-welded blade wheel. It is composed of wheel hub made of metal plate and several blades. It is characterized by that the combined position of said wheel hub and blades is fixedly connected by utilizing continuous welded seam. Said welding method is implemented by adopting high-power laser continuous welding process.

The invention relates to a high-current bypass diode for a concentrating photovoltaic system, and belongs to the technical field of solar power generation. The high-current bypass diode comprises a main body, an anode, a first cathode and a second cathode, wherein the anode and the first and second cathodes are positioned on the same plane of the main body, and are positioned on the two opposite end faces. The bypass diode can resist current of 80 amperes, and can be simultaneously connected in parallel with a plurality of concentrating photovoltaic photoelectric conversion receivers, so that the material cost and the machining cost of a product are reduced; a distance between the anode of the bypass diode and each of the first and second cathodes can be determined in a way that short-circuit between positive and negative electrodes of a circuit board in a welding process can be avoided.

The invention relates to a plug-in type fusion and distribution separated optical fiber distribution module and a distribution frame, which are used for fusion and storage of separated jumpers, and comprise a distribution box provided with a distribution part; the welding and distribution separation type distribution board and the drawing are arranged in the distribution part, the two surfaces of the welding and distribution separation type distribution board are respectively provided with an optical fiber welding disc and a tail fiber storage disc, the welding and distribution separation type distribution board is provided with a through hole for a tail fiber to pass through, the end part of the welding and distribution separation type distribution board is provided with an SC adapter connected with a connector, and the connector is connected with the SC adapter after the connector is connected with the SC adapter. The tail fiber passes through the through hole and is connected with the communication optical cable, and the redundant jumper tail fiber is wound in the tail fiber storage disc. According to the invention, the tail fiber welding and storage of the jumper are separated, the redundant tail fiber of the jumper is stored and managed, the welding process is ensured not to be influenced by the redundant tail fiber, the use habit of the welding and distribution separation operation is met, the drawing type distribution module is set, the modular operation habit of maintenance personnel is facilitated, and the overall wiring of the distribution frame is clear.

The invention relates to the technical field of automatic welding, in particular to a novel swing welding track planning method for a welding robot. The method comprises: firstly, determining welding parameters to obtain teaching point position parameters; then, determining a swing plane, and obtaining parameters needed by interpolation through speed planning of the whole track under a welding seam coordinate system; according to the idea of trajectory superposition, using a cycloid trajectory planning method in the direction perpendicular to the weld joint, and using an equal-time linear trajectory planning method in the direction of the weld joint. The method can ensure that the angular velocity and the angular acceleration of each joint are continuous in the welding process of the robot, and can effectively improve the welding seam quality. A cycloid displacement piecewise function is used in a direction perpendicular to the welding main track, and it can be guaranteed that the speed and the acceleration are continuous in the whole swing welding process.

The invention is suitable for the technical field of welding, and provides a welding waveform generation method, device and equipment and a storage medium, the method comprises the steps that welding parameters are obtained, and the welding parameters comprise base value current; pulse parameters of first pulse waves are determined according to the welding parameters, and the first pulse waves are used for generating electromagnetic contraction force; wherein the amplitude-to-base ratio of the first pulse wave is smaller than or equal to 1, the duty ratio of the first pulse wave is smaller than or equal to 20%, and the frequency of the first pulse wave is larger than 500 Hz; and according to the pulse parameters and the basic value current, second pulse waves are generated, and the to-be-welded workpiece is welded according to the second pulse waves. According to the welding waveform generation method, the first pulse wave is introduced, the first pulse wave only generates extremely small heat while effectively increasing electromagnetic contractility, decoupling of the electromagnetic contractility and electric arc heat in the welding process is effectively achieved, the minimum lower limit current of welding can be effectively reduced while the deslagging effect is improved, and the welding quality is improved. Thin plates are welded through thick welding rods.

The invention relates to the technical field of welding tools, in particular to a manual welding tool. The manual welding tool comprises an outer frame, a tool rotating mechanism, a bottom plate locking mechanism and a universal bottom plate. The tool rotating mechanism is installed on the inner side of the outer frame. The bottom plate locking mechanism is fixed on the tool rotating mechanism. The universal bottom plate is detachably fixed on the bottom plate locking mechanism. According to the manual welding tool provided by the invention, the tool rotating mechanism can drive the bottom plate locking mechanism to rotate, and the universal bottom plate can be driven to rotate in the rotating process of the bottom plate locking mechanism due to the fact that the universal bottom plate is detachably fixed to the bottom plate locking mechanism, so that angle adjustment of the welding tool on the bottom plate is achieved, the requirement for the rotating angle of the tool in the welding process is met, and the welding efficiency is improved. On the other hand, the universal bottom plate is adopted in the manual welding tool, the universal bottom plate can be installed on a manual welding tool and a machine welding tool at the same time for use, die replacement is convenient, and the welding efficiency is improved.

The invention discloses a reinforcing rib plate welding process and welding equipment thereof, relates to the field of reinforcing rib plate welding, and comprises the reinforcing rib plate welding process and the reinforcing rib plate welding equipment. Gas in the suction cup is pumped out through the suction effect of the air exhauster, so that the suction cup is tightly attached to the welding body, the stability of the frame body is further improved, the part of gas is exhausted into the piston pipe, and when the volume of the gas in the piston pipe is increased, the piston pipe can stretch out and draw back; therefore, the reinforcing rib plate is in butt joint with an area needing to be welded and is tightly pressed on the welding area, the welding accuracy of the reinforcing rib plate is ensured, the situation that the edge of the reinforcing rib plate tilts up in the welding process, and consequently the welding quality is reduced is avoided, the two hands of a welding operator are liberated, the welding operator can complete welding work by one person, and the welding efficiency is improved. And the requirement for labor force is lowered, and the welding efficiency is improved.

The invention discloses a laser welding method for a spiral tube bundle type spray pipe. The method comprises the following steps that firstly, the defocusing amount of laser welding of a thin-wall tube bundle is determined; secondly, the spray pipe is vertically clamped on a rotary positioner, the spray pipe is vertically welded, and the height of a laser welding head and the surface of the spray pipe is set according to the defocusing amount in the first step; and thirdly, a double-station robot executes a preset track program, the laser welding head is driven to move, and welding seams are welded till the welding of the large end of the spray pipe, the transition section of the spray pipe and the small end of the spray pipe is completed. According to the laser welding process for the spiral tube bundle type spray pipe, welding seam forming and welding process stability are facilitated, and the welding quality is guaranteed.

The invention discloses a cold source device for welding. The cold source device for welding comprises a shell, the shell is of a cylindrical structure with end covers installed at the two ends in a sealed mode, a plurality of shielding gas channels are formed in the shell, and the shielding gas channels are arranged along the axis of the shell. A cooling liquid channel is defined by the side wall of the shell and the shielding gas channels. Gas pipes and cooling liquid pipes are arranged on the end covers. The gas pipes communicate with the multiple shielding gas channels through a plurality of branch gas pipes. The cooling liquid pipes communicate with the cooling liquid channel. The cold source device for welding is simple in structure and low in cost, shielding gas in the welding process can be rapidly cooled, and the welding quality is improved.

The invention discloses a positioning device for flexible circuit board welding, which comprises a base, one side of the base is provided with a turntable for bearing a circuit board, and one side of the turntable is provided with a clamping assembly for clamping the two sides of the circuit board in the circuit board welding process. When circuit boards of different sizes are replaced and clamped, a worker can replace and clamp the circuit boards more conveniently through the clamping assembly, meanwhile, the rotating assembly can freely rotate the clamped circuit boards according to the needed angle, and operation of a welding worker is better facilitated.

The invention discloses an adjustable opening limiting tool for pickling tank machining, and relates to pickling bath machining equipment. The tool comprises a base, and further comprises opening angle limiting devices for limiting the inclination angle of pickling tank side wall plates, a bottom plate supporting assembly, an auxiliary supporting device and a side plate fixing assembly. The bottom plate supporting assembly is connected between the opening angle limiting devices and used for supporting a pickling tank bottom plate; the auxiliary supporting device is used for assisting the bottom plate supporting assembly to support the pickling tank bottom plate; and the side plate fixing assembly is connected to the opening angle limiting assemblies and used for fixing the pickling tank side wall plates. The tool has the beneficial effects that during use, the angles of two plates can be limited through the opening angle limiting devices, so that it is ensured that two side plates of a pickling tank are symmetrical, meanwhile, the bottom of the tool can be stably supported through the bottom plate supporting assembly and the auxiliary supporting assembly, welding machining of the pickling tank is well facilitated, in addition, the tool is further provided with the side plate fixing assembly, the possibility of side plate displacement in the welding process is effectively avoided, and the use experience is good.

The invention discloses an intelligent gantry welding machine and a gun aligning and positioning method thereof. The intelligent gantry welding machine comprises a welding gun connecting rod and further comprises a laser tracker assembly. The laser tracker assembly is arranged on the welding gun connecting rod. The laser tracker assembly comprises a first connecting rod, a first assembly and a second assembly. The upper portion of the first connecting rod is arranged on the welding gun connecting rod, and the first assembly and the second assembly are arranged on the two sides of the lower portion of the first connecting rod respectively. The first assembly and the second assembly each comprise a laser connecting rod and a laser, the laser is connected with the side face of the lower portion of the first connecting rod through the laser connecting rod, the laser is rotationally connected with the laser connecting rod, and the laser can rotate around the laser. The two lasers rotate on parallel planes, and the rotating directions of the two lasers are both perpendicular to the length direction of the welding gun connecting rod. By adoption of the scheme, in the welding process, the position of a welding spot can be automatically, rapidly and accurately positioned, and the automation degree and production efficiency of welding are improved.

The invention discloses a coiled tubing pipe-to-pipe butt joint process, and belongs to the technical field of coiled tubing construction. The process comprises the following steps: 1, cleaning the joint end parts of butt joint coiled tubing to remove dirt, impurities and burrs; step 2, performing wall thickness increasing treatment on the joint end parts of the butt joint coiled tubing by using an end surface hammering method; 3, machining a welding groove in the joint end parts of the hammered coiled tubing; 4, aligning the joint end parts of the two sections of butted coiled tubing, and carrying out circumferential argon arc welding to make butt joint firm and reliable; and 5, clearing welded junction parts to remove welding burrs and weld beading. Edge burning and collapsing in the welding process can be effectively reduced, and the welding quality of pipe-to-pipe butt joint is improved. The invention further discloses pipe-to-pipe butt joint raw material thickening equipment for conducting hammering thickening on the joint ends of the coiled tubing in the process.