40results about How to "High welding quality stability" patented technology

The invention relates to a laser filler wire welding method for a thick plate narrow gap, and belongs to the technical field of laser material processing. The laser filler wire welding method for the thick plate narrow gap is characterized by comprising the steps that positive out-of-focus laser beams are adopted, the laser beams enter a narrow gap groove of a workpiece to be welded and act on the bottom and the side wall of the groove, and a welding pool is formed in a thermal conducting welding mode; a filler wire enters the welding pool in a wire forward feeding mode and is heated through the welding pool to be molten, the gap is filled with the molten wire to form a weld joint, and a thick plate is connected in a single-path multi-layer welding mode. According to the laser filler wire welding method for the thick plate narrow gap, the thermal conducting welding mode and the mode that the filler wire is heated through the welding pool to be molten are adopted, and the welding process is stable; meanwhile, the laser beams act on the side wall of the groove so that the welding defects such as the defect that the side wall is incompletely fused can be effectively avoided.

The invention relates to a bending type forming method of a corner cut waveguide bend, which belongs to the technical field of waveguide forming. Two triangular bending grooves are formed in the rear surface of a waveguide tube and divide the waveguide tube into three parts in the length direction, wherein the center part of the waveguide tube is a bending area. Bending gaps are processed in the front surface, the upper surface and the lower surface of the waveguide tube; the rectangular waveguide tube is folded forwards along the two triangular bending grooves; and flanges are welded at the two ends of the formed waveguide tube to obtain the corner cut waveguide bend. According to the bending type forming method, the same waveguide tube is adopted for forming, so that the dimension error of an inner cavity assembled by different waveguide tube blanks is reduced, and the probability of dislocation deficiency of the splicing surface of the inner cavity is reduced; a bending type self-positioning structure is adopted to control the inner cavity forming, so that the effects of assembling and welding on the precision of the dimension, shape and position of the inner cavity are reduced, and the forming precision of the inner cavity is improved; the waveguide tube part is subjected to once weld forming, so that welded joints of the inner cavity are decreased; the difficulty in welding is reduced; the stability of the welding quality is improved; and the welding efficiency is improved.

The invention discloses an automatic welding and clamping device of a movable sleeve assembly. The device comprises a working platform; the working platform is provided with a movable sleeve main body welding and clamping tool and a flitch welding and clamping tool side by side; the working platform is provided with two sets of parallel slide rails; a first base and a second base are slidingly matched and mounted on the two sets of slide rails correspondingly; and the working platform is respectively provided with pneumatic devices for driving the first base and the second base to move along the corresponding slide rails. The invention further discloses automatic welding equipment of the movable sleeve assembly; the equipment comprises the automatic welding and clamping device of the movable sleeve assembly; and welding robots are respectively arranged on one side of the working platform corresponding to the two sets of slide rails one to one. The automatic welding equipment of the movable sleeve assembly can realize welding production of the movable sleeve assembly through cooperation between the movable sleeve main body welding and clamping tool and the flitch welding and clamping tool, and has the advantages of high welding quality stability, high production efficiency and low production cost.

The invention discloses a windshield device for welding flat steel structures of hulls, comprising: a power unit, a windshield plate, an anti-overturning fixing device, etc., the power unit is fixedly connected with the windshield board, and the anti-overturning fixing device Fixedly connected with the power device, the windshield device has a stable windproof effect, can prevent the windshield device from being unstable or overturned under the action of wind, reduces the welding time of hull flat steel, improves welding efficiency, and improves the stability of welding quality, etc. advantage.

The invention discloses a cab stabilizer bar and an assembly process thereof. The stabilizer bar comprises a hollow pipe body, a left swing arm and a right swing arm, the hollow pipe body is an alloysteel pipe, the left swing arm and the right swing arm are foundry goods of steels or aluminum alloys, the two ends of the hollow pipe body are subjected to upsetting processing and then welded synchronously with the left swing arm and the right swing arm by magnetic arc welding, after welding, a welding zone is locally heated to eliminate the welding stress, the length difference of the hollow pipe body, the left swing arm and the right swing arm is controlled within +-0.5 mm, and the coaxiality of a connection hole connected with the left swing arm and the right swing arm with an inner holeof the hollow pipe body is within phi0.4 mm. The cab stabilizer bar has a weight reduction of 30%-50% compared with a conventional solid stabilizer bar, which reduces the manufacturing cost, and the dimensional accuracy, the welding efficiency and the welding quality stability are significantly improved compared with conventional arc welding.

The invention provides a robot MAG overlay welding process for a civil nuclear reactor pressure vessel access adapter pipe anti-corrosion layer. The robot MAG overlay welding process for the civil nuclear reactor pressure vessel access adapter pipe anti-corrosion layer comprises the steps of welding at least two welding layers, adopting low alloy steel as base metal and a welding material as austenitic stainless steel, providing a tail drag protection gas hood for a welding gun, providing a protection gas for the tail drag protection gas hood, and enabling to eh protection gas to cover a welding pass adjacent to a molten pool, wherein the protection gas is He+CO2+Ar, and the dilution rate is controlled to be smaller than 27 percent. According to the robot MAG overlay welding process provided by the invention, an overlay welding layer has no defects such as air holes, microcracks, and incomplete fusion between passes.

The invention relates to a welding jig for a robot to weld automobile door lower hinge reinforcing plate assemblies. The welding jig is used for coaxially positioning automobile door lower hinge reinforcing plates and accessories to be welded of the automobile door lower hinge reinforcing plate assemblies, so that the accessories to be welded are welded on the automobile door lower hinge reinforcing plates. The welding jig comprises a jig bottom plate, coaxial positioning mechanisms, rotation preventing mechanisms for the accessories to be welded, rotation preventing mechanisms for the automobile door lower hinge reinforcing plates and rapid press pliers. The coaxial positioning mechanisms, the rotation preventing mechanisms for the accessories to be welded, the rotation preventing mechanisms for the automobile door lower hinge reinforcing plates and the rapid press pliers are arranged on the jig bottom plate. Compared with the prior art, the welding jig has the advantages of being easy to operate, convenient to overhaul, dismount and mount, good in error detection, good in welding quality stability, high in production efficiency and the like.

The invention discloses a universal automatic TIG welding tool for a water pipe robot, which includes a welding rotary table, a pressing device, a welding robot and a positioner, the welding rotary table is connected to the output end of the positioner, and the welding rotary table There is a centering device on the top, and the down-pressing device is located above the welding rotary table. The welding rotary table and the down-pressing device are positioned and assembled with the lifting pipe assembly composed of flanges and round pipes. The welding robot is equipped with a welding pipe assembly. welding torch. The invention also discloses a welding method of the general-purpose automatic TIG welding tool for the water lifting pipe robot. The invention can improve the working efficiency and welding quality of the water raising pipe welding, and reduce the manufacturing cost of the water raising pipe.

The invention discloses a plunger piston hydraulic pump motor rotor dual alloy structure diffusion welding method, which comprises the following steps that 1, the dimension of a workpiece to be welded is subjected to pretreatment; 2, the gasoline soaking ultrasonic processing, the blowing drying, the acid washing ultrasonic wave processing, the water flushing, the absolute ethyl alcohol soaking ultrasonic wave processing and the blowing drying are sequentially carried out; 3, a nickel foil is adopted to be used as a welding transition layer material, and a rotor steel substrate, a copper rod and a rotor end surface copper plate are assembled; 4, through the axial pressurization, an assembled rotor welding assembly is placed into a welding hearth to be subjected to diffusion welding. The method provided by the invention has the advantages that through the conventional diffusion welding on a rotor, a welding joint meeting the use requirements can also be obtained, and in addition, the problems caused by welding deformation can be avoided.

The invention belongs to the technical field of welding, and in particular relates to a steel bar submerged arc stud welding torch. The slider is fixed on the bracket; the support plate A fixes the double-axis cylinder and is installed on the slider; an insulating block A is set between the slider and the support plate A, and an insulating block B is set between the support plate A and the double-axis cylinder The cylinder block of the biaxial cylinder is fixed on the support plate A, the support plate B is fixed on the moving shaft of the biaxial cylinder, and the support plate B drives the steel bars to complete the welding sequence action; the relative sliding between the support plate A and the support plate B can be done, The lifting block controls the lifting height of the support plate A; the adjustment screw is set on the lifting block; the lower part of the support plate B is provided with a locking device, a knob, a steel bar stopper, and a steel bar support, and the steel bar support is fixed on the support plate B. The tightening device and the steel bar block form a back-shaped structure to fix the steel bar, and the clamping force on the steel bar is adjusted by rotating the knob. The operation of the invention is simple and reliable, and the welding efficiency of submerged arc stud welding of steel bars is improved.

The invention discloses a walking robot welding station which comprises a workbench, a welding clamp, handover devices, electrode grinders and walking type welding robots. The handover devices comprises the first handover device, the second handover device, the third handover device and the fourth handover device, the electrode grinders comprise the first electrode grinder and the second electrodegrinder, the walking type welding robots comprise the first walking type welding robot and the second walking type welding robot, the workbench is provided with a welding station, the welding clamp is installed on the welding station, the welding station is provided with an appointed start button, the edge of the workbench is provided with a photoelectric safety door, the two sides of the workbench are provided with safety fences correspondingly, and the safety fences are provided with alarm indication lamps. Operation is easy, people can cooperate with the walking type welding robots to complete welding, the welding efficiency is improved, the welding quality and welding stability are improved, repair time is shortened, and production efficiency of manufacturers is improved.