Installation for welding of closed seams with alternation of rectilinear and curvilinear sections |
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IPC classes for russian patent Installation for welding of closed seams with alternation of rectilinear and curvilinear sections (RU 2377109):
  
 Method of assembling box-type items for welding / 2376120
Method can be used during manufacture of box-type welded items, namely housings of transformers with corrugated walls. Frame of cover and bottom are installed in manipulator and fixed with spring-loaded spacer levers. Levers contact opposite located beams having hinged connections to face plate. Frame of cover is held down to limit stops mounted on spacer levers. Before the first corrugated wall is laid, electromagnets are installed on frame of cover and bottom. Corrugated wall is held down to electromagnets and its tack welding is performed. Then electromagnets are removed and face-plate is turned with manipulator through 90°. The second corrugated wall is laid, held down by flanging to edge of the first corrugated wall and tack welding is performed. The same is done to the third and fourth corrugated walls.
 Device for automatic welding of sector branches of pipelines / 2376119
Invention refers to device for automatic welding of sector branches of pipelines and can be used during manufacture of welded rectangular expansion joints of pipes thermal expansion. Column and housing are mounted on the device base. Lower rollers are installed on housing symmetrically relative to column axis. Their drive is located inside housing. On column there fixed with possibility of being rotated is lead screw end passing through lead screw nut located on cantilever hold-down beam and the other end of lead screw is installed on upper end of column. On beam there mounted are upper rollers and welding unit with duplicating roller. Position switch is located on housing. Detachable cam with magnet lock is designed to be fixed on sector branch with possibility of interacting the position switch. Welding unit is installed with possibility of independent vertical movement by means of independent drive along guides. Guides are rigidly fixed on connecting rod of welding machine passed through holes made in bracket fixed on cantilever hold-down beam whereon two spring-loaded hold-down rollers are located symmetrically to vertical column axis. Two pairs of driving rollers kinematically connected to drive are located on housing. Contact surfaces of hold-down and driving rollers are copper plated.
 Device for continuous production of flat nets / 2376115
Invention refers to device used for production of flat nets and is designed for welding of nets of 0.2-5 mm wire, and up to 2.5 m wide in construction industry, as well as for production of quality products from the net in furniture trade. Weft wire supplying mechanism of the device consists of carriage for receiving and cutting weft wire and magnetic pick-and-place mechanism for moving weft wire to welding position. Carriage is installed on the base of welding machine and includes two side walls wherebetween a beam is rigidly fixed, and receiving shaft is installed on walls so that it can be rotated. Rolling supports are installed on carriage side walls to provide movement of carriage along guides of welding machine base. On one of the above side carriage walls there installed is initial position sensor of receiving shaft, which is equipped with longitudinal guide slots made of hardened inserts for receiving weft wire. On the beam there rigidly fixed are restricting plates with semi-rings. Edges of plates are located opposite one of longitudinal slots of receiving shaft and comprise weft wire receiving channel, and semi-rings are installed coaxially to receiving shaft and intended for retaining weft wire in slots when receiving shaft is turned. On beam there installed with possibility of longitudinal movement is sensor indicating that weft wire is in the channel, and shears with drive for cutting weft wire are fixed. Magnetic pick-and-place mechanism is installed on welding machine base and includes two racks on each of which brackets are fixed, and in brackets on axes there installed are housings in which pins are rigidly fixed on both sides. Pins are installed on one side of housing in vertical position and on them there fixed with possibility of being adjusted as to height is beam with levers-catchers, which is located parallel to receiving shaft. Levers-catchers are located opposite longitudinal unloading slot of receiving shaft and on them there installed are constant magnets which are protected with hardened patches, and free ends of pins on the other side of the above housings are rigidly connected to forks which are hinged to levers, the other ends of which are fixed so that they can be rolled on beam with upper electrode blocks.
 Welder training simulator of manual arc welding with consumable and non-consumable electrode / 2373040
Simulator includes a welding tool with welding electrode, manipulator with welding pattern (10), having current leads and current-carrying branches, welding current source (8), two current sensors (1, 12), voltage sensor (2), two-axis angular position sensor (13) of welding electrode, control unit (14) of filler material supply, normalising amplifiers (3,4,15,16,17,18), multiple-channel analogue-digital converter (5), personal computer (6) and device (7) for reproducing sound signals of feedback with the welder being taught, which is connected to audio output of computer (6). Outputs of current sensors (1,12), voltage sensor (2), two-axis sensor (13) of angular positions of welding electrode and control unit (14) of filler material supply are connected to appropriate inputs of corresponding normalising amplifiers, the outputs of which are connected to inputs of analogue-digital converter (5), the output of which is connected to data bus of personal computer (6). One pole of current source (8) is connected to current lead of welding electrode, and the other pole - to connection point of two current-carrying branches of manipulator (9), and each current-carrying branch is connected with another point to one of two current leads of manipulator (9), in which there installed and fixed is welding pattern (10) with edges opposite as to its length. Each current sensor (1, 12) is connected to one of appropriate current-carrying branches of manipulator (9).
 Machine for pressure contact butt-seam welding of rails by flashing / 2372177
Invention relates to the equipment for pressure contact butt-seam welding by flashing, in particular for the fixed machines for welding of rails into long lengths. Machine for pressure contact butt-seam welding of rails by flashing consists of mobile and immobile pillars connected with each other by shafts, upset cylinders, welding equipment, outboard roller centralisers and flash-taker joint. The joint consists of mobile flash-taker plates with actuator's hydrocylinders, immobile arm support brackets with bearing plates. Outboard rollers of the centraliser are made to enable centering along the base of rail. Hydrocylinders of the flash-taker plates' actuator is made to leave the pass for isolated joint during its opening (i.e. sufficient pass is available). Bearing plates have the form to enable the pass of the isolated joint. Arm support bracket of the flash-taker is equipped with removable guidepaths for advance centering of the rail along the base.
 Method for filter production / 2361069
Invention is related to method for filter production and may find application in oil production industry, method includes application of metal filtering mesh around external periphery of support shell and fastening of metal filtering mesh to external periphery of support shell by means of welding, at that metal filtering mesh fully covers all filtering openings of support shell, creating filter shell. Then filter shell is fixed to external periphery of basic pipe so that filter shell fully covers all penetrating holes of basic pipe. Jacket is applied around external periphery of filter shell and fixed to external periphery of basic pipe so that jacket fully covers external surface of filter shell filtration. Spot and seam welding technologies are used for fixation of metal mesh directly to external periphery of support shell, eliminating possibility of leaks, bypassing filter, in areas of metal mesh welding. As a result, filter is produced from multi-layer metal mesh with improved properties of sand collection and prolonged service life.
 Welding mill assembly / 2359799
Invention relates to welding, particularly to welding mill assemblies and can be used in making longitudinal welded pipes of large diametre. The welding mill assembly has an a viaduct with guides on which are mounted an actuated carriage of the welding set, clamping mechanism, which includes support and clamping jaws, mechanism of bringing together edges of the moulded pipe shell and apparatus for installing a separating blade. The mechanism for lifting the pipe shell is in form of a frame, bearing prism and lifting carrier rollers. The mechanism for bringing together longitudinal edges is made in form of synchronously moved single-arm pivoted levers, mounted on the frame symmetrically about the axis of the pipe shell. The free ends of the levers have spring-loaded supports, which interact with the pipe shell. Separating blades are rigidly mounted at the ends of the single-arm pivoted levers, mounted at the ends of the viaduct on the side opposite the guides with the carriage.
 Welding mill / 2358848
Welding mill consists of immobile portal with welding equipment, two roll tables, two devices to transfer grooved panels and turner. The said immobile portal mounted at the roll table centre is furnished with suspensions whereon welding equipment is mounted, representing welding heads with vertical and horizontal slides, and their number corresponding to double number of the panel lengthwise seams to be welded together. The turner mounted at the roll table rear end comprises separate independent drive sections mounted to roller supports and representing disks with openings arranged aligned with roll tables, furnished with vertical extending supports and horizontal adjustable rests interacting with the shelves, and grooved panel walls, respectively. Each of the said two roll tables consists of two types of isolated sections furnished with horizontal and vertical rollers adjustable in horizontal plane. Note that vertical rollers on one of two types of sections are spring-loaded, while the sections of one of the roll tables are furnished with additional horizontal rollers.
 Clamping tool, in particular electric holder, with compensation system / 2356717
Invention is related to clamp tool and may find application in different branches of machine building, clamp tool comprises the first component (18) and second component (20), which are arranged with the possibility of relative displacement under effect of drive device. Device comprises screw (10) with specified pitch, which is arranged with the possibility of rotation around axis (XX) in single or opposite direction with the help of motor (M), and nut (12) that interacts with screw (10) and is arranged with the possibility of reciprocal motion in direction of axis (XX) of screw. Nut (12) is rigidly connected and moves reciprocally with the first component (18). The first guide facilities (34L) define linear direction that is parallel to axis (XX) of screw, for stopping in nut (12) rotation in the first phase of its displacement. The second guide facilities (34H) define helical direction along axis (XX) of screw (12) with pitch reverse to screw pitch to provide for rotation of nut (12) in the same direction of rotation as screw (10), in the second phase of its displacement. Compensation system (46) is installed between the first component (18) and movable bracket (14), which is fixed to nut (12), to restore initial position of the first component (18) relative to the second component (20) so that the first and second phases of displacement realised by the first and second guide facilities (34L, 34H) remain synchronous with phases required for optimisation of the first component displacement.
Clamping tool, in particular electric holder, with compensation system / 2356717
Invention is related to clamp tool and may find application in different branches of machine building, clamp tool comprises the first component (18) and second component (20), which are arranged with the possibility of relative displacement under effect of drive device. Device comprises screw (10) with specified pitch, which is arranged with the possibility of rotation around axis (XX) in single or opposite direction with the help of motor (M), and nut (12) that interacts with screw (10) and is arranged with the possibility of reciprocal motion in direction of axis (XX) of screw. Nut (12) is rigidly connected and moves reciprocally with the first component (18). The first guide facilities (34L) define linear direction that is parallel to axis (XX) of screw, for stopping in nut (12) rotation in the first phase of its displacement. The second guide facilities (34H) define helical direction along axis (XX) of screw (12) with pitch reverse to screw pitch to provide for rotation of nut (12) in the same direction of rotation as screw (10), in the second phase of its displacement. Compensation system (46) is installed between the first component (18) and movable bracket (14), which is fixed to nut (12), to restore initial position of the first component (18) relative to the second component (20) so that the first and second phases of displacement realised by the first and second guide facilities (34L, 34H) remain synchronous with phases required for optimisation of the first component displacement.
 Method of series welding for ends of thin-wall multi-layer metal bellows / 2368474
In compliance with proposed invention, prior to welding, a split metal ring is placed on the bellows tapered layer surface, the ring width making at least total width of series weld seam and its allowance length, while its thickness exceeds that of the said tapered layer by 1.5 times, not more. Layers are welded together with aforesaid split ring to produce welded seam with allowance to be cut off thereafter. Bellow layers and split ring are made in stainless steel of grade 12X18H10T.
 Method to weld metal powders by electric-contact welding / 2367548
Metal powder is placed on metal screen pre-welded to part surface. Powder is compacted by pressing it into metal screen mesh aperture by inking roller with its width that of the latter. Screen thickness defines the resulted coating thickness. Part with welded on powder is fed under roller electrode for powder to be welded on.
 Method of electrocontact welding / 2361707
Metal wire or tape is welded using roller electrodes with pulsed welding current. On two sides of each roller electrode through insulators, additional electrodes are fitted which encircle the roller electrode, and between which, simultaneously with welding current pulses, current pulses are passed for heating the welded wire or tape and the surface of the component in their contact zone. The roller electrodes for welding the wire or tape are connected to one welding transformer and the additional encircling roller electrodes are connected to another welding transformer.
 Method of electrocontact welding / 2361706
After preheating a welded wire, included in the welding circuit of an installation using electric current, the wire is welded using electrocontact welding, obtaining a coating on the surface of a component. Before welding, the heated wire is passed through a storage bin with metal powder to provide for its agglomeration with the wire. Preheating temperature of the wire should be sufficient for its agglomeration with the metal powder.
Compound for electro-contact welding / 2360776
Invention may be used to restore worn-out parts of machines and produce coatings. The material contains iron powder "ПЖР"3.200.28 - 80 wt %, copper powder PMS-N - 20 wt % and polyvinylbutyral as binding agent in the amount of 3 wt % from the total weight of metal powder. In addition, the compound contains boric acid in the amount of 5 wt % from the total weight of metal powder and binding agent.
 Device for electro-contact welding / 2360775
Invention may be used to restore rotary parts and weld spiral joints. The device consists of a wheel electrode and two levels mounted on supports and hinge-connected to screw regulator. The lever shoulders are coupled with pneumatic compression drive from one side. The levers are implemented so that rotary parts can be placed on the other side of each lever. Filler material is welded on the above-mentioned rotary parts. The levers are installed in such a way that the said parts can be pressed to wheel electrode installed between them.
Method of obtaining coating by resistance welding / 2350447
Mix with required viscosity is applied by dosage tanker to part surface in welding zone in a band pattern as wide as welding wheel width. The mix includes (wt %): iron powder grade "ПЖР" 3.200.28 - 90, copper powder "ПМС-Н" - 5, and binding agent - 5. Colophonium solution is used as binding agent. Mix welding is performed by welding wheel to obtain coating.
 Device for roller electroresistance welding / 2343053
Device contains two electrode heads, each of which is executed in the form of the roller electrode established on an axis, placed in the case, a drive of compression of the pneumocylinder with a rod and the mechanism of turn and fixing of a roller electrode. The mechanism of turn and fixing of a roller electrode is executed in the form of the cylindrical sleeve with slots, springs and sleeves with an internal cone and protuberances on the external surface, going into slots of the cylindrical sleeve rigidly fixed on the pneumocylinder. The axis of a roller electrode is rigidly fixed on a rod of the pneumocylinder of a drive of compression on which there is the conic part interacting with an internal cone of the sleeve, resting against a spring.
 Device for machine elements electric resistance hardening and reconditioning / 2342234
Two arms are mounted on device frame. One end of each arm is coupled with piston compression drive and other end - with electrode tip connected to welding transformer. Screw of screw regulator is mounted on frame base. Regulator nuts are pivotally connected with corresponding arms. Electrode tips consist of two copper half-rings connected to transformer, steel half-rings, spring-loaded truncated rectangular pyramids with grooves in truncated part, guiding isolated screw rods and bronze wire wrapping half of processed element circumference. Spring-loaded truncated rectangular pyramids are mounted along circumference between copper half-rings and by their bases are located in guiding isolated screw rods. Bronze wire is fitted into grooves of spring-loaded truncated rectangular pyramids and is capable to contact with element during its processing. Guiding isolated screw rods are fixed by their threaded part in steel half-rings.
 Device for electric resistance welding of ferromagnetic powders / 2342233
Device comprises contact roller, workhead drive, electrode application device, electrode moving device, welding transformer and batching bin, electric solenoids with variable resistor in their circuit. Secondary winding of transformer can be connected to electrode and processed part. Electric solenoids are installed at both sides of workhead drive-processed part contact area. Solenoid cores butt-ends are directed to outlet hole of batching bin while equivalent force of all magnetic and gravity sources acting on ferromagnetic particle is directed into electric resistance welding area.
 Method for making honeycomb metallic structures / 2247637
Method comprises steps of cutting out blanks of envelopes and belts; shaping belts; alternatively placing belts onto electrode rack of welding machine; fixing belts on rack; feeding them to welding zone and welding belts to envelopes and one with other. Belts are shaped for forming corrugated belts with beads having open bevel. In welding machine belt is placed onto non-detachable electrode rack. Belt is fixed to electrode rack by means of clamp arranged outside belts. Final bending of belt beads by 90° is realized in working parts of drawing die after releasing stops of belts while using envelopes as working parts of drawing die. Invention allows to make honeycomb metallic structures with thickness 3 - 10 mm.
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FIELD: machine building. SUBSTANCE: invention can be used in machine-building production chain with computer-aided production process for welding of closed seams with drive feed of welded products. Welding machine for seam welding is outfitted by two sensors of welded edges, contains immovable desk with ball bushings and copy roller. Plate with four restrictive planks for fixation on it of bottom part is implemented with guiding grooves parallel to straight-line portion of welding seam. At intersection of grooves in points of connection of radiuses of curvilinear sections of seams there are implemented cavities. Copy roller is installed with ability of movement in tracking grooves of plate by axis of welding in plane parallel to roller electrodes and it is outfitted by spring-loaded axis. Axis is connected to rod of electromagnetic valve with ability of its fixation in mentioned grooves. Immovable desk is outfitted by ball bushings and two planks for limitation against movement of welded welded edges of product. Plate is installed in contact to ball bushing of immovable desk and copy roller. EFFECT: installation provides simplification of technology for receiving of defect-free closed seams ensured by providing of feeding of welded edges with usage of pressure and rotation by electrode wheel. 4 dwg
The present invention relates to the welding process, namely the setting for welding closed seams with straight and curved sections with mechanized feeding of welded products used in the machine serial production for the automation of the production process. It is known that the seam welding connect parts of different smaller products made from sheet materials, such as flat radiator, tanks, washing machines, tanks, etc. /see, for example, Boars NS "welding at the contact machines": M.: Higher school, 1979 str/if welding is used, the rotation of the parts between the electrodes, as well as forced displacement of details about rotating electrodes when the seams of a closed shape using trucks and pantograph systems. The disadvantage of such devices is that a forced feed of the product relative to the rotating welding electrodes can lead to inconsistent velocities products and pulses, as well as photoprice the welds overlapping of the individual weld points, then it violates the overlapping dots and education protoproto seam. It is known device in the form of a table-companion for laser processing of workpieces /A.S. SU # 1622111, A1, IPC V, 37/04, 26/08 23.01.91/, containing the her plate with grooves supporting needle and clamps with clamping surfaces for the workpiece and the mechanism for moving the plate in two perpendicular directions. The main disadvantage of not allowing the use of this device for welding products with seams, having straight and curved sections, is the inability to weld on curved sections without the use of additional retaining swivel mechanisms. The technical result of the proposed solutions is to simplify the technology for defect-free closed seams with straight and curved sections, the contact seam welding by providing a supply of welded edges using compression and rotation of the welding rollers. This technical result is achieved due to the fact that in an apparatus for welding closed seams with alternating straight and curved sections containing welding machine seam welding with two sensors welded edges, stationary table with ball bearings and a copying roller, mounted in a plane parallel to the welding rollers along the axis of the weld, and also in contact with the plate elements of the installation and fastening of the welded product and the electromagnetic valve according to the invention the elements of the installation of a welded product is made in VI is e four bounding strips for the bottom of the product, located on the stove and in the oven posted by guide grooves of rectangular cross-section, parallel rectilinear portions of the weld, and at the intersection of the grooves of the connection points of the radii of curved sections of the seams are recesses for fixing the axis of the copying roller, mounted for movement in the guide grooves of the plate, in addition, the axle is spring-loaded and connected with the rod of the electromagnetic valve, and the fixed table has two straps to limit the displacement of the welded edges. The inventive device for performing closed seams with straight and curved sections are shown in figs 1, 2, 3, 4, where 1 schematically shows a device for performing closed seams with straight and curved sections; figure 2 is a view along arrow a in figure 1 (welding machine, not shown); figure 3 - cross section B-B in figure 1; figure 4 - cross section b-b In figure 2. The inventive installation for welding closed seams with alternating straight and curved sections contains welding machine 1 seam welding with two sensors welded edges 2 and 3, stationary table with 4 ball bearings 5 and Photocopying roller 6 mounted in a plane parallel to the welding rollers 7 along the axis of the weld, and also in contact with the plate 8 is La fastening welded articles 9 and the electromagnetic valve 10. The plate 8 has four guide plates 11 for installation and fastening of articles 9 and the stationary table 4 has two straps 12 to limit the displacement of the welded edges. In the plate 8 made the guide grooves 13 of rectangular cross-section parallel rectilinear portions of the weld, at the intersection of the grooves of the connection points of the radii of curved sections of the seams are recesses 14 for fixing the spring axis 15 of the copying roller 6, which is connected with the rod 16 of the electromagnetic valve 10. The inventive installation for welding closed seams with straight and curved sections is as follows. Article 9 mounted on the plate 8 between restrictive straps 11 and fix it, the plate 8 is placed on ball bearings 5 of the table 4 so that a copying roller 6 table 4 were included in the guide groove 13, with welded edges straight seam area products 9 are based on the lower welding roller 7 (electrode), and the axis 15, to come into contact with the bottom of the guide groove 13, compresses the spring. Then welded on the lower edge of the upper welding roller 7 (the electrode) and include welding. The electrode rollers 7, the compressive edge products 9 begins to rotate and, welding product 9, move it together with the plate 8, lying on ball bearings stole 4 in the direction opposite to the direction of welding, thus copying the roller 6 in the guide groove 13, the parallel straight seam, and the strap 12 hold the edge products 9 from lateral displacement from under the welding rollers 7. At the approach of a curved section of the suture spring-loaded axle 15 left in the recess 14 at the intersection of the guide grooves 13 and is fixed in it. Welding rollers 7 begins to rotate the product 9 together with the plate 8 around the axis 15, by performing curved welding seam with a given turning radius. After you run this seam area and exit straight seam area under the rollers 7 on command from one of the sensors of the edges 2 or 3 of the welding machine 1 is turned on, the electromagnetic valve 10, the piston rod 16 which, pulling the spring-loaded axle 15 of the copying roller 6 from the recess 14 of the plate 8, frees the roller 6, which enters the following guide groove 13 for the next straight seam area. After a specified period of time the solenoid valve 10 is switched off, while a spring-loaded axle 15 comes into contact with the bottom of the guide groove 13. Such operations are repeated until a complete circuit of the welding seam by overlapping the last point first. After that, the welding current is switched off, and the upper welding roller 7 is raised, releasing the cooked product is 9. It is then removed from the plate 8 and the plate set the next item. Thus, the application of the proposed installation for welding closed seams with alternating straight and curved sections containing welding machine seam welding with two sensors welded edges, stationary table with ball bearings and a copying roller, mounted in a plane parallel to the welding rollers along the axis of the weld, and also in contact with the plate elements of the installation and fastening of the welded product and solenoid valve, which controls installation of a welded product is made in the form of four restraining straps to secure the bottom of articles on the stove, in the oven posted by guide grooves of rectangular cross-section, parallel rectilinear portions of the weld while at the intersection of the grooves of the connection points of the radii of curved sections of the seams are recesses for fixing the axis of the copying roller, mounted for movement in the guide grooves of the plate, and the axle is spring-loaded and connected with the rod of the electromagnetic valve, and the fixed table has two straps to limit the displacement of the welded edges, allows to simplify the technology of obtaining defect-free closed seams with right inania and curved sections, contact seam welding by providing a supply of welded edges using efforts compression and rotation of the welding rollers. Welder-operator, eliminating the need to monitor welding products, can serve several similar installations. Installation for welding closed seams with alternating straight and curved sections containing seam welding machine, equipped with roller electrodes and two sensors welding edges, stationary table, a device for securing a welded product and copy the roller, characterized in that the device for securing a welded product is made in the form of a plate with four restrictive straps for fastening on her bottom product in which the guide grooves parallel to the straight sections of the weld at the intersection where the connection points of the radii of curved sections of welds made of deepening, copy the roller is mounted for movement in the guide grooves of the plate on weld axis in a plane parallel to the roller electrodes, and equipped with spring-loaded axis associated with the rod of the electromagnetic valve, with the possibility of recording in the above-mentioned recesses, while the fixed table has ball operamini two straps to limit the displacement of the welded edges, and the stove is installed in contact with ball bearings fixed table and copy the movie.
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