49results about How to "Stable wire feeding" patented technology

The invention belongs to the field of welding devices, particularly relates to a wire feeding system of a double-motor combined welding wire coordinating mechanism. The wire feeding system specifically comprises an upper computer (1), an interface circuit (2), a push-pull wire motor control unit (3), a push-pull wire feeding servo motor unit (4), a welding wire coordinating mechanism (5), a push wire motor unit (6) and a PWM speed adjusting circuit (7), wherein the upper computer is connected with the push-pull wire motor control unit via the interface circuit and connected with the PWM speed adjusting circuit, and used for totally controlling the whole push-pull wire feeding system; the push-pull wire motor control unit is used for closed loop control of the push-pull wire feeding servo motor unit; the PWM speed adjusting circuit is used for driving and controlling the push wire motor unit; the welding wire coordinating mechanism is an intermediate link for connecting the push wire motor unit with the push-pull wire feeding servo motor unit. The wire feeding system is mainly combined with a digital welding power source and capable of realizing various welding technological methods based on high-frequency feed-draw welding wires.

The invention belongs to the field of a welding wire material, and particularly relates to a welding wire for submerged-arc welding of high-efficiency X100 pipeline steel and the application of the welding wire. The welding wire material comprises the chemical components in percentage by weight: 0.01-0.05 wt% of C, 1.4-2.1 wt% of Mn, 0.1-0.3 wt% of Si, 0.2-0.4 wt% of Mo, 0.05-0.1 wt% of Ti, 0.003-0.005 wt% of B, 0.1-0.4 wt% of Cr, 0.2-0.3 wt% of Cu, 0.3-0.6 wt% of Ni, 0.03-0.08 wt% of Nb, less than or equal to 0.005 wt% of S, less than or equal to 0.005 wt% of P, and the balance of Fe. The welding wire for the submerged-arc welding, disclosed by the invention is matched with an SJ101-100 welding flux deposited metal and has an excellent comprehensive mechanical property, the yield strength is greater than 690 MPa, the tensile strength is greater than 780MPa, and the impact work is greater than 108J in -20 DEG C; after welding, the forming of a welding seam is attractive, the defects of cracking, undercutting and the like do not exist, the strength is high, the toughness is good, the crack resistance is good, the welding seam has a good matching effect with the X100 pipeline steel, and the welding wire has a decisive function on performance of a weld metal as the welding wire is used as a main filling metal; according to the welding wire disclosed by the invention, the welding requirements of an oil and gas transmission pipeline under a situation of higher pressure are met.

The invention discloses a rotary plate type multi-station automatic flame brazing machine for a household air conditioner silencer assembly. The rotary plate type multi-station automatic flame brazing machine comprises a machine frame and an index rotary plate arranged at the top of the machine frame. Two welding devices and two wire feeding devices are arranged on one side of the index rotary plate. A plurality of wielding tools are arranged at the top of the index rotary plate. The whole machine adopts the rotary plate type multi-station design, servo wire feeding is adopted by the wire feeding devices, the wire speed and wire amount can be regulated and controlled, through a self-made reinforcement wire pressing device, wire feeding is stable, and slipping and wire stuck are avoided; through the self-designed welding tools, as for the same station, the left side is used for a former procedure, and the right side is used for a later procedure, so that finished products can be produced through one machine, the yield reaches 99.5% or above during usage, and the production takt is shorter than 8 second / set; the former and later procedure product can be met through the machine, finished products are obtained directly, and carrying and equipment input are reduced; two sets of products are perfectly compatible, gapless model change is achieved, machine debugging is avoided, and the equipment utilization rate is high; and the rotary plate type multi-station automatic flame brazing machine is suitable for being operated with robots and special machines online, and full-automatic manless production is achieved.

The invention discloses a pipeline all-position automatic tungsten inert gas welding (TIG welding) machine, belongs to the technical field of automatic welding equipment, and has wide applications inpipelines and pipe butt joint all-position automatic welding. The pipeline full-position automatic TIG welding machine comprises a walking welding trolley, wherein the welding trolley performs circular motion along a pipeline; a wire feeding mechanism and a welding gun are arranged on the body of the welding trolley; a hot wire nozzle is arranged at the tail end of the wire feeding mechanism; thehot wire nozzle is a copper pipe; one end of the hot wire nozzle is connected with a heating power supply through a lead wire; an anode connecting wire is also arranged; one end of the anode connecting wire is connected with the heating power supply; and the other end of the anode connecting wire is a free end. The invention solves the problem of preheating welding wires in the prior TIG welding,ensures that the welding wires are preheated before welding, and solves the problem that distance between a welding gun and a welding pipe fitting cannot be conveniently adjusted, so that wire feedingis stable, and welding quality and welding efficiency of the pipeline full-position automatic TIG welding are effectively improved.

The invention discloses a parallel tri-wire welding system and method. The welding system comprises a wide-range welding power supply, a wire conveying mechanism with a tri-slot wire conveying wheel and a welding gun with a tri-hole conductive nozzle, wherein three welding wires are simultaneously conveyed to the welding gun through the wire conveying mechanism and separately penetrate through three independent holes which are distributed in the conductive nozzle at certain intervals; and welding waveforms output by the welding power supply are supplied to the welding wires through the conductive nozzle, and welding is carried out by simultaneously using the three wires. After the bottom ends of the three wires are molten, molten drops attract each other under electromagnetic action, and the molten drops stably and smoothly flow into a molten bath. The single-power-supply and parallel-tri-wire system has the advantages that the welding efficieny is increased, electric arc shapes and weld penetration size and contours are improved, welding flaws are reduced, and mechanical strength is improved; and at the same time, the three welding wires are stably conveyed by one wire conveying mechanism and go through one conventional welding gun, the operation is convenient, the reaching range of the welding gun is great, and manual, semi-automatic and robot welding demands can be simultaneously met.

A light full-sealed underwater automatic welding wire feeder comprises a wire feeder box, a wire reel mechanism, a speed reduction transmission mechanism, a gear transmission mechanism, a wire pressing mechanism and a sealing motor with a sealed waterproof function, wherein the wire feeder box is provided with multiple interfaces, and the wire reel mechanism, the speed reduction transmission mechanism, the gear transmission mechanism, the wire pressing mechanism and the sealing motor are sealed and insulated in the wire feeder box. The interfaces on the wire feeder box include the gas way interface, the power cable interface and the welding gun interface. The inside-box gas pressure balanced with the outside-box water pressure is formed in the wire feeder box through protection gas injected into the wire feeder box through the gas way interface. The sealing motor, the speed reduction transmission mechanism and the gear transmission mechanism are sequentially connected. A pressure passageway is formed between the installed wire pressing mechanism and the installed gear transmission mechanism. A welding wire wound on the wire reel mechanism is pressed when passing through the pressure passageway and is conveyed to the welding gun interface of the wire feeder box. The light full-sealed underwater automatic welding wire feeder has the beneficial effects that the weight is small, the sealing performance is good, and the possibility that the device fails when working under water can be greatly reduced. The invention belongs to the technical field of underwater welding.

The invention discloses a stepless adjustable eccentric rotation consumable electrode gas protection welding gun. The stepless adjustable eccentric rotation consumable electrode gas protection welding gun comprises a drive device, an eccentric device, a gas protection device and electric conduction rods. The drive device comprises a hollow shaft torque motor, a connecting sleeve, an encoder and the like. The movement of the motor is accurately controlled through the encoder and the driver. The eccentric device comprises a bearing inner sleeve and an eccentric sleeve. During welding stick eccentricity achieving, a smooth transition process exists, and an overall mechanism of the welding gun is more simple and smaller in power consumption. The gas protection device is arranged at the lower end of the eccentric device. When the motor rotates, the upper electric conduction rod, the bearing inner sleeve, the eccentric sleeve and the lower electric conduction rod are driven to rotate, and the lower end of the lower electric conduction rod is connected with an electric conduction nozzle, so that a welding stick does the cylindrical rotation; by utilization of the stirring action of a rotating arc to a molten pool, the welding line structure is refined, the welding line tenacity is improved, the fusion depth of the two sides of a welding line is improved, and the forming and welding quality of the welding line is improved. The overall structure is simple, an eccentric mechanism is simplified, the application range is wide, and automation is easy to achieve.

The invention relates to small-sized wire drawing type electric arc spraying equipment used for hot spraying, which is shown in the attached drawing of the abstract. The equipment adopts the technical scheme of an inversion type spraying power supply and a wire drawing type spraying gun, the output voltage of 10 to 40V is regulated in a stepless way, and the voltage can be regulated in the spraying process without stop; a manual / automatic spraying and wire inspection / spraying switch is arranged, which is convenient to select an operation mode and avoid the occurrence of the condition that electric arcs injure people and damage equipment because of the short circuit of a wire material when the spraying wire material is installed, regulated and inspected; the spraying wire material is limited to be phi 1.0 to phi 1.6mm, the maximum spraying current is 250A, the load duration rate is 100 percent, and continuous spraying is permitted; the weight of the spraying power supply is 15kg, and the weight of the spraying gun is 1.5kg; and the equipment has the characteristics of small volume, light weight, convenient carrying, safe and reliable equipment performance, convenient use, simple operation, stable spraying quality and the like, is suitable for the field operation and the use in an occasion with small spraying space and is suitable for spraying a component with a fine and small structure and a product with a fine coating.

The invention provides a vibrating wire feeding welding device based on a linear motor, and belongs to the technical field of welding equipment. The device specifically comprises wire feeding box body, a linear motor unit, an insulation plate, a wire feeding running pipe assembly, a connector, a wire feeder unit, a welding wire and a welding wire plate, wherein the wire feeding box comprises a side frame, a box chassis and a box side wall; the linear motor unit consists of a stator and a rotor; the stator is fixed to the box chassis; the wire feeder unit is fixed to the rotor through an the insulation plate; one end of the wire feeding running pipe assembly is connected with the connector and fixed on the side wall of the box body, and the other end of the wire feeding running pipe assembly is mounted on the wire feeder unit; and the wire welding plate is hung on a side frame of the box body and supports wire feeding. The wire feeder unit receives a constant speed command to enable thewelding wire to be fed forwards at a constant speed, and after the linear motor unit receives a vibration command, the mover drives the wire feeder unit to enable the welding wire to be pushed forwards and drawn back backwards, so that the effect of vibration wire feeding is achieved. The device achieves the purposes of reducing heat input and welding defects.

The invention provides an efficient TIG wire feeding method and a welding device. The wire feeding method comprises the steps that a standard arc pressure is preset; wire feeding is conducted at the preset wire feeding speed, and the real-time arc pressure in the welding process is detected; whether the absolute value of the difference value between the real-time arc pressure and the standard arc pressure is larger than a preset value or not is judged; if the real-time arc pressure is larger than the preset value, the wire feeding speed is adjusted according to the real-time arc pressure, the preset wire feeding speed and a preset rule; and wire feeding is conducted according to the adjusted wire feeding speed. According to the efficient TIG wire feeding method, the wire feeding speed can be automatically adjusted according to the feedback arc pressure in the welding process, wire feeding can be stable, and welding seam forming can be excellent.

The invention relates to a time sequence control circuit and method for realizing constant-speed wire feeding. The circuit comprises a wire feeder driving module, a current / voltage sampling module, a time sequence control module, a wire feeding motor, a follow-current catching diode and a current sampling sensor, wherein the wire feeder driving module is used for driving a wire feeder through pulse working voltage; the current / voltage sampling module is used for collecting working current and electromotive voltage of the wire feeder and sending collected data to the time sequence control module; and the time sequence control module is used for processing fed back by the current / voltage sampling module and sending a control signal to the wire feeder driving module. By adoption of the time sequence control circuit and method for realizing constant-speed wire feeding, the wire feeder can keep constant-speed wire feeding under different loads and different resistances, has the advantages of being accurate in speed control, high in response speed, stable in wire feeding and low in cost, and has wide application range.

The invention relates to a novel digitized wire feeder. The novel digitized wire feeder comprises a control box, a direct current motor, a handle, a card swiping induction module, a display screen button, a display screen, a PC panel, a wire reel fixing part, a wire feeding plate, a speed measuring mechanism, a wire pressing wheel, a wire feeding wheel, a wire pressing rod, a current and voltage adjusting rotary knob, an automatic wire feeding button, a two-core pore, a gas pipeline current transformer, an electromagnet, a data transmission line, a Hall sensor, a circuit mainboard, a temperature sensor, a humidity sensor and a rack. The novel digitized wire feeder has the beneficial effects that the novel digitized wire feeder integrates various sensing units, can collect, record and upload all sensitive parameters in a welding process in real time, and can achieve digitalized control of an overall process of data collection and analysis, welding task management, staff, equipment, welding materials and the like.

The present disclosure provides a multi-motor wire feeding control system and method. The multi-motor wire feeding control system includes: a plurality of wire feeding units, each wire feeding unit includes a motor, a speed sensor, a current sensor and a wire feeding driving mechanism, and the speed sensor is used to detect the speed signal of the motor, so The current sensor is used to detect the current signal of the motor, wherein, the motors of each wire feeding unit have their own speed loops, and the speed loops of each wire feeding unit operate according to the same speed command, and among the multiple wire feeding units At least part of the motors have their own current loops, and at least part of the current loops in the current loops are associated with the motor current of their own wire feeding unit and the motor current of at least one other wire feeding unit; the controller, the controller according to the speed instruction 1. The speed signal fed back by each speed sensor and the current signal fed back by each current sensor control the motors of each wire feeding unit to run at a constant speed.

The invention discloses a non-copper-plated solid welding wire for gas shielded welding. The non-copper-plated solid welding wire for gas shielded welding comprises a welding wire base body and a surface treatment layer, wherein the welding wire base body is formed by drawing of a wire rod, the surface treatment layer comprises a potassium base solid wire drawing lubricant agent left during drawing of the welding wire and high-voltage static coating oil, the amount of the remaining potassium base solid wire drawing lubricant agent is 5-10mg / m<2>, and the amount of the high-voltage static coating oil is 5-15mg / m<2>. The manufacturing method of the non-copper-plated solid welding wire for gas shielded welding comprises the steps that (1) husking, derusting, cleaning, lime coating and drying are carried out on the wire rod in sequence, (2) wire drawing reducing is carried out on the wire rod by means of a rough drawing reducing method and a finish drawing reducing method so that size requirements of a finished welding wire are met, (3) the lubricant agent on the surface of the welding wire is removed, (4) high-voltage static oil coating is carried out on the welding wire, (5) the welding wire is wound precisely and is packaged. The non-copper-plated solid welding wire has the advantages that surface treatment is even, wire feeding is stable, the electrical conductivity and rust resistance are high, and the success rate of arcing and the success rate of reignition of arc are high. The manufacturing method of the non-copper-plated solid welding wire for gas shielded welding has the advantages that discharging of waste acid, waste alkali, copper plating liquid waste and boron waste is avoided, water consumption is small, and environmental pollution is greatly reduced.

The invention belongs to the field of welding devices, particularly relates to a wire feeding system of a double-motor combined welding wire coordinating mechanism. The wire feeding system specifically comprises an upper computer (1), an interface circuit (2), a push-pull wire motor control unit (3), a push-pull wire feeding servo motor unit (4), a welding wire coordinating mechanism (5), a push wire motor unit (6) and a PWM speed adjusting circuit (7), wherein the upper computer is connected with the push-pull wire motor control unit via the interface circuit and connected with the PWM speedadjusting circuit, and used for totally controlling the whole push-pull wire feeding system; the push-pull wire motor control unit is used for closed loop control of the push-pull wire feeding servo motor unit; the PWM speed adjusting circuit is used for driving and controlling the push wire motor unit; the welding wire coordinating mechanism is an intermediate link for connecting the push wire motor unit with the push-pull wire feeding servo motor unit. The wire feeding system is mainly combined with a digital welding power source and capable of realizing various welding technological methods based on high-frequency feed-draw welding wires.