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38results about How to "High degree of welding automation" patented technology

Automatic TIG (Tungsten Inert Gas) welding method for liner-free single-side welding and double-side forming of aluminum alloy butted circular seam

The invention relates to an automatic TIG (Tungsten Inert Gas) welding method for liner-free single-side welding and double-side forming of an aluminum alloy butted circular seam, which comprises the following steps of: before welding, cleaning greasy dirt at the periphery of a cylinder butted circular seam with acetone; removing an oxide film in the periphery of the cylinder butted circular seam by a stainless steel wire wheel; preheating before welding; debugging a control panel for controlling welding current and voltage, welding speed and wire feeding speed to match in real time; and welding by adopting an automatic TIG machine, wherein a welding wire is not added for back formation when a first layer is welded, a welding wire is added for filling when a second layer is welded, a welding wire is added when a third layer is welded, and a welding gun swings for cover surface forming. The automatic TIG welding method has the advantages of simple equipment, convenience in operation, stable welding, high welding speed, low production cost, fewer filled welding wires, fewer welding layers, small deformation, no need of correction after welding, attractive formed appearance and high welding seam quality and realizes welding automation.
Owner:陕西国德电气制造有限公司

Process method for assembling and welding pile leg of ocean platform

The invention discloses a process method for assembling and welding a pile leg of an ocean platform. According to the method, the production speed is high, and the percent of pass of products is high. A pile leg assembly is composed of a rack and two semicircular pipes. Coming cargo examination should be carried out on the rack and the semicircular pipes carefully, and the rack and the semicircular pipes are installed through a tool. The rack is turned over through a turnover device. The assembled pile leg examined to be qualified is lifted to an electric heating furnace stage trolley, conveyed into a furnace and heated, wherein the temperature ranges from 150 DEG C to 200 DEG C. The temperature in a hearth should be kept even. The heated pile leg is placed on the ground. Two welding joints are in the horizontal state. Manual welding rods are used for backing welding. Welding is performed on the pile leg by four welding workers from the middle position. The two sides are simultaneously and symmetrically welded. After welding is finished, the pile leg is turned over and welded continuously. After the welding joints are backed for 1 to 2 layers, the pile leg is lifted to roller carriers on a submerged arc welding production line and then formally welded. The welded pile leg is conveyed into a thermal treatment furnace, the heating temperature ranges from 200 DEG C to 280 DEG C and maintained for 2 to 3 hours, and then the pile leg is delivered out of the thermal treatment furnace.
Owner:张家港润通海洋工程科技有限公司

Device and method for double-shaft shoulder FSW (Friction Stir Welding) based on temperature feedback of leader region

The invention discloses a device and a method for double-shaft shoulder FSW (Friction Stir Welding) based on temperature feedback of a leader region. The device comprises a stirring head, a clamp holder and a handcart, wherein the stirring head is arranged on a machine head in a clamping way through the clamp holder, the machine head is fixedly provided with a semicircular arc magnetic steel piece, the clamp holder is provided with high-speed proximity switches in the circumferential direction at intervals every 90 degrees, the stirring head comprises an upper shaft shoulder, a lower shaft shoulder and a stirring needle which is located between the upper shaft shoulder and the lower shaft shoulder, the upper shaft shoulder is provided with sheathed thermocouples in the circumferential direction at intervals every 90 degrees, the radial directions of end points of the sheathed thermocouples are respectively parallel to the radial direction of a setting point of the corresponding high-speed proximity switch after the stirring head is provided with the clamp holder, and the sheathed thermocouples are connected with a controller through a wireless transmission module. The method is characterized by dynamically adjusting the welding speed and the rotating speed of the stirring head through the sheathed thermocouples and pressure spring type thermocouples. According to the device and the method for the double-shaft shoulder FSW based on the temperature feedback of the leader region, disclosed by the invention, the structure is clever, the detection accuracy is high, the welding speed is dynamically adjusted through dynamically detecting the temperature of a welding workpiece, and the welding accuracy is high.
Owner:JIANGSU UNIV OF SCI & TECH

Storage tank body welding device

The invention relates to the technical field of metal welding, and provides a storage tank body welding device which comprises a fixed platform which is provided with a rotating disc and two stand columns. Two annular rails are further fixed between the two stand columns. A welding trolley is arranged on the annular rails. An outer welding gun is arranged on the welding trolley, and outer welding seams are formed at the joint of a tank body and a tank bottom and the joint of the tank body and a tank opening respectively. A centering shaft extends into the storage tank. A centering adjusting mechanism is arranged on the centering shaft. An inner welding mechanism is further arranged on the centering shaft, and an inner welding seam is formed on the inner wall of the storage tank along with rotation of the storage tank. Therefore, a rotary table, clamping jaws and a pressure plate are arranged on the fixed platform, so that the tank opening, the tank body and the tank bottom of the storage tank are vertically fixed. The outer welding gun moves on a circular rail, so that the formation of the outer welding seams is realized. And meanwhile, the inner welding mechanism is arranged, and after the outer welding seams are formed, the inner welding seam can be conveniently formed in the storage tank. The welding automation degree is high, manual work is replaced to enter the tank for operation, the labor intensity is relieved, and the welding efficiency is improved.
Owner:诸城市众发机械有限公司

Welding tool and method of medium carbon steel hollow step bar

The invention provides a welding tool of a medium carbon steel hollow step bar. The welding tool comprises a bearing strength frame, a clamping mechanism and a pre-heat welding system, wherein the bearing strength frame comprises a stand column, and the stand column is provided with an upper support plate, a middle support plate and a lower support plate; the clamping mechanism comprises a clamping cylinder installed under the upper support plate and a locating sleeve detachably connected with the clamping cylinder, the inner diameter of the locating sleeve matches with the outer diameter of a thin hollow rod, a steel ball used for assisting to rotate is arranged in the locating sleeve, a hollow locating piece is arranged below the locating sleeve, the hollow locating piece and the locating sleeve are arranged in a coaxial line, the inner diameter of the hollow locating piece matches with the outer diameter of a thick hollow rod, the hollow locating piece is arranged on the middle support plate through a thrust bearing, and an actuating motor connected with the hollow locating piece in a shaft mode is arranged below the hollow locating piece; the pre-heat welding system comprises an electromagnetic induction heater, a laser welder and a temperature sensor. The welding tool and a welding method have the advantages that the pre-heating process is linked with the welding process, the tool welding automation degree and working efficiency are improved, and the manufacturing technique of tools is simplified.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Coiled tubing plate-plate butt welding equipment and welding method

The invention discloses a coiled tubing plate-plate butt welding equipment and welding method. The coiled tubing plate-plate butt welding equipment comprises a support, a steel belt straightening wheel, a steel belt position adjusting device, a steel belt welding and clamping device, a plasma welding gun, a steel belt cutting device and a steel belt clamping device, wherein the steel belt straightening wheel, the steel belt position adjusting device, the steel belt welding and clamping device, the plasma welding gun, the steel belt cutting device and the steel belt clamping device are sequentially arranged on the support from left to right. The steel belt position adjusting device is provided with a steel belt position adjusting knob and an air pressure driving device, the steel belt position adjusting knob can adjust the position of a steel belt, and the air pressure driving device can push and press the steel belt after pressurization. According to the coiled tubing plate-plate butt welding equipment and welding method, the welding quality can be guaranteed, through plasma welding, a thermal induction area is smaller, the welding thickness range is wider, beveling is not needed in welding, the welding automation degree is high, and welding is more standardized.
Owner:XINDA KECHUANG TANGSHAN PETROLEUM EQUIP CO LTD

Dual-shaft shoulder friction stir welding device and method based on temperature feedback of leading zone

The invention discloses a device and a method for double-shaft shoulder FSW (Friction Stir Welding) based on temperature feedback of a leader region. The device comprises a stirring head, a clamp holder and a handcart, wherein the stirring head is arranged on a machine head in a clamping way through the clamp holder, the machine head is fixedly provided with a semicircular arc magnetic steel piece, the clamp holder is provided with high-speed proximity switches in the circumferential direction at intervals every 90 degrees, the stirring head comprises an upper shaft shoulder, a lower shaft shoulder and a stirring needle which is located between the upper shaft shoulder and the lower shaft shoulder, the upper shaft shoulder is provided with sheathed thermocouples in the circumferential direction at intervals every 90 degrees, the radial directions of end points of the sheathed thermocouples are respectively parallel to the radial direction of a setting point of the corresponding high-speed proximity switch after the stirring head is provided with the clamp holder, and the sheathed thermocouples are connected with a controller through a wireless transmission module. The method is characterized by dynamically adjusting the welding speed and the rotating speed of the stirring head through the sheathed thermocouples and pressure spring type thermocouples. According to the device and the method for the double-shaft shoulder FSW based on the temperature feedback of the leader region, disclosed by the invention, the structure is clever, the detection accuracy is high, the welding speed is dynamically adjusted through dynamically detecting the temperature of a welding workpiece, and the welding accuracy is high.
Owner:JIANGSU UNIV OF SCI & TECH

Welding method of flange plate and web plate of q390d steel crane girder in heavy work system

The invention discloses a flange plate and web welding method for a heavy derrick Q390D steel crane beam. The method comprises the six steps of manufacturing web welding parts and flange plate welding parts with butt welding grooves, dehumidifying the web welding parts and the flange plate welding parts, welding the web welding parts in a butting and full penetration mode to form a web, welding the flange plate welding parts in a butting and full penetration mode to form a flange plate, performing heat preservation and slow cooling on a web sealing joint an a flange plate sealing joint, combing and welding the web and the flange plate in a T shape in a full penetration mode, and performing heat preservation and slow cooling on a crane beam welding joint. In the process of manufacturing the web or the flange plate, the web welding parts and the flange plate welding parts are not preheated before welding; in the crane beam manufacturing process, the web and the flange plate are not preheated before welding. According to the flange plate and web welding method, the automatic submerged arc welding multi-layer and multi-pass welding technology is adopted, the welding automation degree is high, few cold cracks exist in a welding joint structure, the welding quality is high, the labor intensity of welding work is low, the welding cost is low, and welding time is greatly shortened.
Owner:CHINA 19TH METALLURGICAL CORP

Welding gun control method and control system thereof

InactiveCN109877421AReduce requirements and labor intensityHigh degree of welding automationWelding accessoriesElectric arcEngineering
The invention provides a welding gun control method and a control system thereof. A welding gun is controlled by a sliding frame to carry out tracking welding. The control method comprises the following steps of controlling the sliding frame to adjust the welding gun to an initial position; turning on a power supply, collecting and recording the initial voltage V2 of electric arcs generated when the welding gun is located at the initial position; setting the fluctuation voltage V4; starting welding, tracking and collecting the real-time voltage V0 of electric arcs generated by the welding gunaccording to the real-time height of the welding gun in operation; calculating the voltage difference VX between the real-time voltage V0 and the initial voltage V2; when it is judged that the voltagedifference VX is smaller than the fluctuation voltage V4, controlling the welding gun to continue working; and controlling the welding gun to stop working when it is judged that the voltage difference VX is greater than or equal to the fluctuation voltage V4. The welding gun control method greatly reduces the degree of human intervention caused by burning through of workpieces in the welding process, improves the welding automation degree, improves the working efficiency, avoids the danger of welding gun falling, saves the production cost, and is more economical and efficient.
Owner:HUAHENG WELDING +2

Electromagnetic coil

The invention discloses an electromagnetic coil which comprises two frameworks. Each framework comprises a winding part, two knife-edge-shaped parts, a holding part and a plurality of pins, wherein the winding part forms a columnar shape, the two knife-edge-shaped parts are arranged at the two ends of the winding part in parallel, the holding part is arranged on the periphery of one knife-edge-shaped part and is opposite to the other knife-edge-shaped part, the holding part comprises a plurality of protruding parts which are arranged at intervals in parallel, the protruding parts are connectedwith the knife-edge-shaped parts, every two adjacent protruding parts are separated from each other to form a notch part, and each protruding part is provided with a through hole running through theaxial direction of the winding part; the pins are inserted into the through holes respectively in the axial direction of the through holes, the two knife-edge-shaped parts with the holding part in thetwo frameworks are oppositely arranged, the protruding parts of one framework are inserted into the notch parts of the other framework, and the protruding parts of the other framework are inserted into the notch parts of one framework. The electromagnetic coil can improve the automation degree of winding and welding, and has the advantages of being high in production efficiency, low in manufacturing cost and the like.
Owner:江苏华阳智能装备股份有限公司

Friction Welding Method for Standard Section Web Rod of Tower Crane

The invention discloses a friction welding method for a standard section web of a tower crane. The web is welded by a steel pipe and an end plate. The friction heating process is divided into two stages of primary friction and secondary friction, and the two stages rotate the main shaft The rotation speeds of the first and second frictions are equal, the first-order friction pressure and friction time are fixed; the second-order friction pressure is greater than the first-order friction pressure and fixed, when the total friction deformation of the first-order friction and the second-order friction reaches the preset value, the second-stage friction heating ends; After the stage friction is over, the rotating fixture is braked, and after the main shaft holding the end plate stops rotating, the moving fixture holding the steel pipe is fed for upsetting, and the friction welding process is completed after upsetting and maintaining pressure. The invention omits the process of "grooving and turning the boss" in the existing processing flow; the rotating speed in the friction heating stage is fixed, which is easy to control; the amount of friction deformation can be controlled, which improves the stability of the welding length of the web; improves the production efficiency and reduce production costs.
Owner:SICHUAN CONSTR MACHINERY GRP

A tool for automatic welding of thick-walled hollow rods

A tool for automatically welding a thick-wall hollow rod uses a positioning device for realize self positioning of a welding surface and uses a compensating device for compensating length dimension tolerance of a workpiece, so that a welding seam is always as high as a centerline of a welding gun and frequent adjustment of the position of the welding gun is avoided. The tool comprises an upper supporting plate, a lower supporting plate, upright posts, a servo motor and a three-jaw chuck, wherein a positioning plate assembly is installed at the middle part of the upright post on one side; the positioning plate assembly can rotate around the upright post; a welding gun assembly is installed on the inner side of the upright post on the other side; the positioning plate assembly is as high as the welding gun assembly; the height of the positioning plate assembly is adjusted by a limiting nut on the upright post; the height of a long hollow rod is adjusted by a compensating mechanism, so that the upper end surface of the long hollow rod contacts the lower surface of the positioning plate assembly; a short hollow rod is connected with the upright posts at the two ends through positioning and adjusting mechanisms; the height of the short hollow rod is adjusted, so that the lower end surface of the short hollow rod always clings to the upper end surface of the long hollow rod and the welding seam is as high as the centerline of the welding gun.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

One-piece flange automatic welding equipment with central through hole

The invention discloses an integral flange automatic welding device with a central through hole. The welding cross arm is slidably connected to the base of the positioner, and can move forward and backward relative to the base; the welding chuck is connected to the main motor through the rotary support fixed on the turning frame; the turning frame has a central through hole, and the workpiece can pass through the center through the hole The welding chuck can hold any part of the workpiece, so that the positioner, welding power supply and welding torch can be integrated structure, not only suitable for long pipe welding, but also when there are multiple welds on the workpiece, no need Repeatedly changing the relative position of the welding cross arm and the positioner can complete the welding of all welds on the workpiece. The welding cross arm is equipped with a welding oscillator and an arc length regulator. The welding torch is installed on the arc length regulator, which can automatically realize the swing and up and down adjustment, and is suitable for weldments with groove requirements and workpieces with obvious ellipticity. Welding, without human adjustment or intervention, realizes closed-loop control, and the welding quality is easy to guarantee.
Owner:JINAN JINLUDING WELDING TECH CO LTD

Automatic welding jig for engineering machinery excavating equipment

The invention discloses an automatic welding jig for engineering machinery excavating equipment, which comprises a welding base, wherein the welding base comprises a bottom plate and a support; a shovel plate pressing device, a supporting tube positioning reference, a supporting arm vertical pressing device, a supporting arm horizontal pressing device, a bearing seat positioning shaft, an oil cylinder lug plate positioning shaft and a vertical pressing quick clamp are arranged on the bottom plate; the shovel plate pressing device comprises a shovel plate base support pushing screw rod, a guide rod and a pressing block; the supporting tube positioning reference is fixed on the welding base; the supporting arm vertical pressing device comprises a support, a cantilever and a pressing screw rod I; the support is fixed on the welding base; the pressing screw rod I is connected with the cantilever; the supporting arm horizontal pressing device comprises a bracket I and a pressing screw rod II; the bracket I is fixed on the welding base; and the pressing screw rod II is connected with the bracket I. According to the jig, overall welding automation can be achieved, the jig can accurately position all parts and is provided with the pressing devices, therefore, part displacement caused by welding thermal deformation can be avoided, and pressing is convenient and fast.
Owner:NANTONG GUOSHENG PRECISION MACHINERY

Welding method of flange plate of q390d steel crane girder in heavy work system

The invention discloses a flange plate welding method for a heavy derrick Q390D steel crane beam. A Q390D steel plate with the thickness of 50-60 mm is cut to be flange plate welding parts for H-shaped steel, and then the flange plate welding parts are welded in a butting and full penetration mode to form a flange plate. The method comprises the five steps of manufacturing flange plate welding parts, forming grooves in a welding connector, dehumidifying the flange plate welding parts, welding the flange plate welding parts in the butting and full penetration mode to form the flange plate, and performing heat preservation and slow cooling on a welding joint. According to the flange plate welding method, no preheating working procedure performed before welding or heat preservation working procedure performed after welding is provided, the automatic submerged arc welding multi-layer and multi-pass welding technology is adopted, the welding automation degree is high, few cold cracks exist in a welding joint structure, the welding quality is high, the labor intensity of welding work is low, the welding cost is low, and welding time is greatly shortened, so that the welding technology meets the requirement for the heavy level better on the whole, particularly the heavy derrick crane beam flange plate welding requirement.
Owner:CHINA 19TH METALLURGICAL CORP

Electromagnetic coil assembling method

The invention discloses an electromagnetic coil assembling method. An electromagnetic coil comprises two frameworks. Each framework comprises a winding part, two knife-edge-shaped parts and a holdingpart, wherein the two knife-edge-shaped parts are arranged at the two ends of the winding part in parallel, the holding part is arranged on the periphery of one knife-edge-shaped part and is oppositeto the other knife-edge-shaped part, the holding part comprises a plurality of protruding parts which are arranged at intervals in parallel, every two adjacent protruding parts are separated from eachother to form a notch part, and each protruding part is provided with a through hole running through the axial direction of the winding part. The assembling method includes the steps that S1, a plurality of pins are inserted in the axial direction of the through holes; S2, each pin is processed so that the two ends of the pin are bent to the end away from the corresponding knife-edge-shaped part;S3, the two knife-edge-shaped parts with the holding part in the two frameworks are oppositely arranged, and the protruding parts of one framework are inserted into the notch parts of the other framework; S4, the pins on the two frameworks are connected with inner and outer leading-out wire ends. The electromagnetic coil assembling method is easy to operate, and automation of winding and weldingcan be realized.
Owner:江苏华阳智能装备股份有限公司

Novel welding device for producing capacitors

The invention discloses a novel welding device for producing capacitors. The novel welding device comprises a machining box body. A door body is connected to one side of the front end of the machiningbox body in a rotary manner through hinges. A mounting block is fixed to the middle of the bottom face inside the machining box body. A mounting rod is connected to the upper end of the mounting block in a rotary manner through a rolling bearing. A containing plate is fixed to the top end of the mounting rod. A servo motor is further fixed to the inner wall of one side of the machining box. A reducer is arranged at one side of the servo motor. The output end of the servo motor is fixedly connected to the input end of the reducer. The output end of the reducer is connected with the mounting rod through a bevel gear set in a rotary manner. The side wall of the containing plate is provided with rolling balls. A rolling groove is formed in the middle of the inner wall of the machining box body. All the rolling balls are arranged in the rolling groove. The novel welding device is reasonable in design and great in innovation; the capacitor welding automation degree is high; the work requirement of mass production of the capacitors is well met; and the capacitor welding efficiency is greatly improved.
Owner:铜陵市凯瑞特电子有限公司
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