7570results about How to "Improve welding efficiency" patented technology

The invention relates to a welding track detection and control method of plate butt weld based on laser ranging, including the following steps: A. track detection is carried out; B. track identification and extraction are carried out; C. track control is carried out; D. the relative position relation between a welding gun and a welding seam is adjusted at last by performing mechanism actions. In the invention, the information of welding seam profile is obtained by transverse scanning of a laser sensor, and welding seam is rebuilt after effective wave filtering treatment to realize three-dimensional detection of the welding seam; simultaneously, the welding track curve is obtained by fit while detecting welding seam by using dynamic B spline fit algorithm, and the track control is carried out in combination with constant speed B spline track interpolation algorithm, thereby fundamentally solving the problem of track detection and control in automatic welding of plate butt weld. By using the method in the invention, the field test welding has welding profile identification precision of 0.15mm and welding track identification precision of 0.2mm, and the welding speed is more than four times of common manual welding.

The invention discloses a full-automatic multi-station welding system which mainly comprises a rotary table and driving device, contact bridge storage and feeding devices, contactor feeding and conveying devices, welding machine heads and a discharge component, wherein the rotary table and driving device is internally and externally divided in the shape of a ring in the such way of equal and concentric eight parts and four stations, and the positions are set to be an even number according to the welding positions of welded pieces; eight mechanical arm assemblies are uniformly distributed in the circumferential direction on the upper surface of an outer rotary table; two contact bridge storage and feeding devices, two contactor feeding and conveying devices, two welding machine heads and two discharge devices are correspondingly arranged in sequence on the outer side of eight positions; each contact bridge storage and feeding device is engaged with a lower mechanical arm in the present position; each contactor feeding and conveying device comprises a device for identifying front/back faces and sorting during contactor feeding, a solder dropping device and a contactor cross-pushing device. The full-automatic multi-position welding system achieves synchronization of fully automatically welding, assembling and forming multiple sets of equipment in multiple positions at the same time.

The invention discloses a scanning type laser vision sensing-based narrow-gap deep-groove automatic laser multilayer welding method for a thick plate, relates to a welding method, and aims to solve the problems that the conventional structured light vision sensing-based welding method can only be used for a simple shallow-groove laser weld seam tracking task and that when the conventional structured light vision sensing-based welding method is used for the narrow-gap deep-groove weld seam welding of the thick plate, a covering phenomenon is easily produced, the groove identification accuracy is lower, only real-time weld seam alignment calibration can be realized and narrow-gap deep-groove laser multilayer welding bead planning and welding cannot be realized. The method specifically comprises the following steps of: 1, selecting a groove form; 2, scanning a groove section image of a thick plate workpiece to be welded by using an image scanning unit; 3, processing the acquired groove section image by using an image algorithm to obtain weld seam image data; 4, performing fitting calculation; and 5, finishing the welding of welding beads layer by layer. The method is used for the deep-groove weld seam welding of the thick plate.

The invention discloses a laser lap welding gap detecting system and a laser lap welding gap detecting method based on molten pool image visual sensing. The detecting system is a visual sensing system and comprises a CMOS camera, a light filtering system, a secondary light source, an image capture card, a computer, a display and the like, wherein the CMOS camera has a LinLog photosensory technology. According to the detecting method, the secondary light source and emitted light of molten pools are used as light sources; plasma is filtered out by utilizing the light filtering system, and light intensity is adjusted; the computer is used for collecting and displaying molten pool images in real time, wherein the molten pool images are obtained by the CMOS camera; molten pool image edges and areas and orifice image edges and areas are extracted and calculated by utilizing a Labview image processing platform, and the quantitative relations between molten pool sizes and orifice areas and between the molten pool sizes and orifice gaps are obtained. The detecting system is simple in structure, clear in monitoring image, high in light signal detecting accuracy, strong in anti-jamming capacity, good in engineering practicability and capable of monitoring laser welding of T-type overlap joint gaps in real time.

The invention relates to the technical field of automated cutting and welding, and discloses a multifunctional single-cantilever cutting and welding integrated machine. The integrated machine comprises a machine frame base, a machine frame stand column, a stand column rotary device, a vertical lifting device, a machine frame transverse arm, a left-right translation device, a telescopic arm, a front-rear transverse moving device and a multi-joint machine head, wherein the machine frame stand column is mounted on the machine frame base through the stand column rotary device, and the machine frame transverse arm is mounted at the upper part of the machine frame stand column through the vertical lifting device. The integrated machine is reasonable and compact in structure and convenient to use; the welding of longitudinal, circumferential and fillet weld seams, cutting of an intersecting line hole and automatic welding of a saddle-shaped weld seam between a barrel body and a connecting pipe can be finished in a relatively fixed station through the stand column rotary device, the vertical lifting device, the left-right translation device, the front-rear transverse moving device and the multi-joint machine head, the frequent motion of a workpiece can be avoided, the clamping and positioning frequency of the workpiece is greatly reduced, the welding efficiency and quality are remarkably improved, and the labor intensity of welding workers is reduced.

The invention relates to a modularizing self-adaptation adjusting clamp used in the automobile welding, comprising a based station(1), a clamping mechanism(100) fixed on the based station(1) , an independent principal positioning mechanism(200), and an online real-time detecting and self-adaptation adjusting device(300). The online real-time detecting and self-adaptation adjusting device (300) is composed of a stepping motor (305), a slider (308), a straight-line guiding rail (309) and a transmission device. The transmission device, which is driven by the stepping motor (305), pushes a pushing rod (301) and the slider to slide along the straight-line guiding rail (309). The invention is more flexible and is convenient for the connection and combination of every component by means of modularized, standardized and serialized clamp elements, can be adapted to various work within a certain range and type, can effectively reduce the manufacturing cost, effectively controls the precision of the key points of workpieces and improves the welding quality and efficiency.

The invention discloses an electromagnetic current coupling field assisted hybrid melting-brazing method for a laser-TIG arc and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of plasma formed through ionization of laser, arc and a raw material metal, thereby improving the laser utilization rate. Under the electric field assisted comprehensive effect, the weld melting depth is increased, and the assistant effect on the melting bath of the liquid-state brazing filler metal for laser-arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, stabilizing the welding process, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.

The invention provides a method for welding a specially-thick high-strength bridge steel plate and belongs to the technical field of specially-thick plate welding. The test plate of the method adopts a symmetric narrow gap U-shaped groove form, is combinedly welded by using two efficient welding methods, namely gas shielded welding for priming and bottom filling, and double-wire submerged arc welding for continuous filling and finishing, so as to achieve the purposes of reducing filling level and giving full play to the efficient double-wire submerged arc welding and high automation degree. The method has strong operability, greatly improves the welding efficiency of the specially-thick bridge steel plate, and significantly reduces manpower cost. Furthermore, by selecting a proper welding sequence, the method solves the problem that the welding deformation of the specially-thick steel plate is hard to control.

The present invention is a friction stir welding machine adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forcing the welding tool to be advanced into a softened portion which is softened by a frictional heat while stirring the softened portion, wherein a coating made of aluminum nitride is formed on at least a region of the welding tool to be in contact with the materials to be welded.

The invention discloses a method for welding composited tube at the bonding interface of carbon steel/stainless steel machinery, comprising the following steps: 1. welding groove treatment as follows:removing a section of stainless steel lined tube; processing the interior of the carbon steel parent tube exposed outside after removing the stainless steel lined tube into an inclined plane inclinedinwards from exterior to interior; using a tungsten electrode argon arc welding machine to carry out bead weld on the inclined plane from interior to exterior and forming multiple stainless steel bead weld layers; processing the weld surface of the carbon steel parent tube into a V-shaped groove; 2. backing weld: when fitting up the stainless steel bead weld layers before backing weld, adopting the tungsten electrode argon arc welding machine to carry out fitting-up and fixing in a manner of spot welding; 3. transition weld; and 4. carbon steel parent tube weld. The invention features simpleprocedure steps, less used weld materials, high weld pass percentage, good welding line mechanical property, high weld quality and improved production efficiency simultaneously.

The invention relates to quake-proof construction steel with lamellar tearing resistance and excellent performance and a production method thereof. The steel is suitable for steel plates of which the thicknesses are between 20 and 100 millimeters and comprises the following chemical components: less than or equal to 0.015 percent of C, less than or equal to 0.015 percent of Si, less than or equal to 0.015 percent of Mn, less than or equal to 0.015 percent of P, less than or equal to 0.005 percent of S, 0.02 to 0.04 percent of Nb, 0.005 to 0.020 percent of Ti, 0.010 to 0.060 percent of Als and the balance of Fe. The method comprises the following steps of: performing the pretreatment of molten iron; performing desulfuration treatment; controlling target components of a smelting terminal point, wherein the target components comprise 0.05 to 0.07 percent of [C] and less than or equal to 0.015 percent of [P]; refining through a ladle furnace, and feeding aluminum wires and blasting argon; performing relative humidity (RH) vacuum treatment, and introducing the argon before the treatment; adding SiCa wires; casting continuously and performing the pouring of full-process protection; heating casting blanks; performing rough rolling; performing precision rolling; and cooling. The steel of the invention has the excellent quake-proof performance (ReH/Rm is less than or equal to 0.77); and the contractibility rate of a cross section in the full-thickness direction is between 40 and 70 percent, so the steel meets the requirements of key stressed points of major constructions such as steel structure work and the like fully.

The invention discloses a multi-station robot intelligent welding system for pipe piling sheets. The multi-station robot intelligent welding system comprises a control system, a clamp system, a machine vision system, a robot system, a welding system and a safety protection system, wherein the control system comprises a robot control cabinet, a PLC control cabinet, a machine vision system and a man-machine interface; the robot system comprises two supplying robots, two welding robots and a feeding robot; the two supplying robots are placed in a back-to-back manner; the two welding robots are placed at front middle positions of the two supplying robots side by side; the PLC control cabinet is in communication with the robot control cabinet; the robot control cabinet controls movement of a robot body; the welding system is connected with a welding robot control cabinet; and a welding robot body controls a welding gun to finish welding. By the multi-station robot intelligent welding system, positions and widths of welded joints can be recognized accurately, and information of the welded joints is recognized automatically; and the feeding robot feeds materials automatically, the labor intensity is reduced, and high automation of a whole process of feeding, supplying and welding is realized.

The present invention relates to an intersecting line welding robot for welding cylinder body. Said welding robot includes welding gun, and is formed from the following several portions: machine body, clamp, rotation mechanism, X-axis movement device, Y-axis movement device, large radial arm and small radial arm. Said invention also provides its working principle and concrete operation method.

The invention discloses refractory anti-seismic construction steel for high-toughness welding structures, and a production method thereof, and solves the problem that the traditional construction steel is high in Mo that is a noble alloying element, high in producing-processing cost, low in refractory property and poor in anti-seismic performance. Based on the chemical composition of steel in percentage by weight, the steel comprises 0.05 to 0.13 percent of C, 0.10 to 0.60 percent of Si, 0.80 to 1.80 percent of Mn, less than or equal to 0.015 percent of P, less than or equal to 0.010 percent of S, 0.15 to 0.50 percent of Mo, 0.15 to 0.50 percent of Cr, 0.015 to 0.050 percent of Nb, and 0.010 to 0.050 percent of Als, at least one of 0.01 to 0.10 percent of V, 0.005 to 0.020 percent of Ti, 0.05 to 0.50 percent of Ni, 0.0010 to 0.020 percent of RE and 0.0010 to 0.010 percent of Ca, and the balance of Fe and inevitable impurities. The steel has the advantages of low content of Mo that is a noble alloying element, short production process and cycle, excellent refractory and anti-seismic performance, good cold-hot machining performance and excellent low-temperature toughness and welding performance.

The invention discloses a welding method of Q420qE grade ultra-low-carbon bainite steel for bridges, comprising the following steps: 1. the special chemical ingredients and technical conditions of Q420qE grade ultra-low-carbon bainite steel for bridges related to the welding method; 2. the pre-heating temperature before welding related to the steel and thickness specification of the steel; 3. welding line energy related to the steel; 4, the groove form and welding method related to the joint form and the plate thickness of the steel; 5. welding materials related to the steel, the joint form, groove form and welding method of the steel; and 6. welding process parameters related to the steel, the joint form, groove form, welding method and welding materials of the steel. The welding method covers the typical joint forms and thickness specifications of the bridge structure, and is simple and practical, the implementation effect of which complies with the related standards of the present bridge steel and the bridge structure, thus being practically applied to welding of the bridge steel structure.