1377results about How to "Improve welding precision" patented technology

The invention relates to the technical field of steel cylinder girth welding, and specifically relates to an automatic steel cylinder girth welding device. The automatic steel cylinder girth welding device comprises an operation table, wherein an opposite driving assembly is arranged at the bottom of the operation table; the opposite driving assembly comprises two movable bottom plates; a movablenotch used for allowing each movable bottom plate to move is formed in the operation table; a rotary table is arranged at the top of each movable bottom plate; a left side rotating assembly and a right side auxiliary rotating assembly are arranged on the two rotary tables correspondingly; clamping jaw assemblies are arranged at the adjacent ends of the left side positioning rotating assembly and the right side rotating assembly correspondingly; lifting adjusting assemblies are arranged above the left side rotating assembly and the right side auxiliary rotating assembly correspondingly; a vertical support is arranged between the two clamping jaw assemblies; and a welding gun capable of lifting is arranged on the vertical support. According to the device, the height of each steel cylinder needing to be welded can be adjusted correspondingly, butt joint is automatically carried out, the height of the welding gun can be automatically adjusted, and the welding precision is improved.

The invention discloses power battery ultrasonic welding equipment. The power battery ultrasonic welding equipment comprises a working table, a tray feeding assembly, a cell feeding assembly, a connecting link feeding assembly, a film-pasting assembly, a cell discharging assembly, a protecting plate feeding assembly, an ultrasonic welding assembly, an electric resistance welding assembly and pressing plate pick-and-place assemblies, wherein the tray feeding assembly, the cell feeding assembly, the connecting link feeding assembly and the film-pasting assembly are arranged on the working table, the tray feeding assembly is used for feeding trays, and the cell feeding assembly is used for positioning cells; the connecting link feeding assembly is used for feeding copper and aluminum connecting links into fixtures, the film-pasting assembly is used for pasting blue glue on the welding area, and the cell discharging assembly is used for outputting the cells pasted with the film; and the protecting plate feeding assembly used for feeding protecting plates, the ultrasonic welding assembly used for compressing and welding positioned lugs, connecting links and protecting plates, the electric resistance welding assembly used for carrying out repair-welding on ultrasonically welded copper poles, and the pressing plate pick-and-place assemblies which are symmetrically arranged on the two sides of a return line body, and are used for transferring pressing plates into the fixtures or disassembling the pressing plates are arranged on the periphery of the return line body. According to the power battery ultrasonic welding equipment, the technical problems that the degree of welding automation of an existing power battery is not high, the manufacturing efficiency, the welding precision and the yield are low, and the manufacturing cost and the failure rate are high are solved; and the power battery ultrasonic welding equipment has the characteristics that the implementation is easy and the stability is high.

The invention discloses a 3D printing welding method using a multi-degree-of-freedom robot. A computer and a workshop welding robot are included, and the computer controls a welding arm of the workshop welding robot; by means of the novel 3D printing technology, a welding part 3D model is built in the computer, and then a welding line required to be welded in the model is assigned, the computer will extract welding line trajectory coordinates, and the trajectory coordinates are compiled into execution stage robot language commands which are output to the workshop welding robot; and after simulation is free of errors, 3D printing welding is achieved. Through the method, the condition that according to a modern automatic welding robot, due to problems of welding line tracing, image processing and the like, the welding quality is poor is avoided, welding is stable, operation is convenient, a large number of sensors are not needed, and the cost is low.

The invention discloses a curve welding seam welding technology based on line structured light and oriented to an oblique crossed tube. According to the method, machine version and robot kinematics are combined very well, so that the problems that the process of obtaining curve welding seam feature points is not flexible, and a curve track model are difficult to establish are solved. The curve welding seam welding technology comprises the following steps of: firstly, controlling a six-degree-of-freedom robot, enabling a robot end to drive an industrial camera to shoot a curve welding seam image with the line structured light; and then, carrying out a series of image pre-treatment and feature point extraction work to obtain space coordinates of all feature points of a curve welding seam, and fitting through a B sample curve, and finally obtaining a smooth space curve. Besides, the gesture of a welding gun can be changed in real time according to included angles at the two sides of a workpiece when the welding gun is used for welding a curve, so that the welding process and welding requirements are improved better.

The invention provides a visual location welding system and method based on robot welding. The visual location welding system is composed of a hand-eye calibration module, a photographing point location recording module and a welding execution module. The hand-eye calibration module is used for calculating a position and pose conversion relationship between a camera coordinate system and a robot coordinate system; three-dimensional information of crossed steel bars is acquired through the photographing point location recording module, and welding paths of the crossed steel bars are calculatedthrough a steel bar point cloud welding line extraction algorithm; and the welding paths are sent to the welding execution module, and the welding operation of steel bar crossing points is completed through the welding execution module . Through visual location of the crossed steel bars, the problem of poor precision of a workpiece and a clamp is solved, flexible and accurate welding is achieved,and the welding quality is guaranteed. According to the welding system, automatic calculation of the welding paths is achieved, and the demonstration of the welding paths is omitted; the robot demonstration process is simplified, and the requirement for operators is reduced; and the welding automation of the steel bars is achieved, and the welding effect and the production efficiency are improved.

The invention belongs to the technical field of automatic welding and discloses a method for automatically detecting and tracking a weld seam. The method includes the following steps that workpieces (1) to be welded are spliced in advance, the gap between the workpieces (1) is formed, the width of the gap is 1.5 mm-3 mm, a bottom light source (3) is arranged underneath the workpieces (1), and an image collecting unit is used for extracting pre-calibrated trails of light transmitting the gap in an actual weld space coordinate system; then the workpieces (1) are tightly spliced to form the weld seam (2) of which the width is smaller than 1 mm; the image collecting unit is used for collecting images of the surfaces of the multiple workpieces (1), a search area containing the pre-calibrated trails is determined in each image, the weld seam (2) is searched for, and a welding gun (4) is guided to perform welding. The weld seam (2) can be found accurately through the bottom light source, the search range of the weld seam is greatly narrowed through determining one search area in each image, in this way, workloads of searching for the weld seam are reduced, working efficiency is improved, and welding by mistake is avoided.

The invention discloses a thin-wall three-way pipe clamping device. The thin-wall three-way pipe clamping device comprises a base plate. A thin-wall three-way pipe vertical segment clamping module anda thin-wall three-way pipe horizontal segment clamping module are mounted on the base plate. The thin-wall three-way pipe vertical segment clamping module comprises vertical sliding rods which are movably mounted on the base plate. Vertical segment V-shaped clamping mechanisms are movably mounted on the vertical sliding rods. A trapezoids support frame for locating is mounted between each vertical sliding rod and each vertical segment V-shaped clamping mechanism. The thin-wall three-way pipe horizontal segment clamping module comprises a horizontal sliding rod support frame which is movably mounted on the base plate. A horizontal sliding rod is mounted on the horizontal sliding rod support frame. Horizontal segment V-shaped clamping mechanisms are movably mounted on the horizontal slidingrod. The thin-wall three-way pipe clamping device has universality and is precise in locating and capable of improving welding precision and operation efficiency.

The invention relates to a curve thin board and a laser welding method and laser welding system thereof. The laser welding method of the curve thin board comprises the steps of scanning the curve thinboard, and obtaining curve point cloud data of the curve thin board; treating the point cloud data, and obtaining multiple coordinate data of the curve welding path; fitting the multiple coordinate data, and obtaining the curve welding path curve; controlling a laser welding head to weld the curve thin board along the welding path curve. According to the curve thin board and the laser welding method and laser welding system thereof, the distance between the laser welding head and the curve thin board can be adjusted, the laser welding head adapts to the welding line of the curve thin board, the welding precision of the welding line of the curve thin board is higher, and the problem that the welding precision of the curve thin board is poor is solved.

The invention discloses a tank body circular seam welding machine comprising a rack. A lifting mechanism is arranged on the rack, and a lifting platform is arranged on the lifting mechanism and is movably matched with the rack; a working platform lifting mechanism is arranged on the lifting platform, and an operating platform is arranged on the working platform lifting mechanism; a first horizontal guide rail is horizontally arranged on the lifting platform, a first sliding block is arranged on the first horizontal guide rail, a fixed sliding plate is arranged on the first sliding block, a vertical guide rail is arranged on the fixed sliding plate, a vertical sliding block is arranged on the vertical guide rail, a vertical sliding plate is arranged on the vertical sliding block, a welding mechanism is arranged on the vertical sliding plate, a shaft is arranged on the vertical sliding plate, a welding trolley is arranged on the shaft, a profiling mechanism is arranged on the welding trolley, two profiling wheels and a profiling wheel driving mechanism are arranged on the welding trolley, and the profiling wheel driving mechanism is connected with the two profiling wheels. In the tank body circular seam welding machine, the liftable operating platform is arranged, so that more convenience is provided for welding operation of operators, the accurate welding control can be realized, and the efficiency and the accuracy of welding are improved.

The invention provides an automatic welding production line for wire coils. The production line comprises a feeding and conveying mechanism, a pressing and positioning mechanism, a transferring manipulator, a welding manipulator, a discharging and conveying mechanism and a control mechanism in signal connection with the feeding and conveying mechanism, the pressing and positioning mechanism, the transferring manipulator and the welding manipulator. The production line is simple in structure, high in welding speed and high in welding quality stability, the phenomenon that welding of welded junctions is not uniform because of manual welding can be effectively avoided, and therefore welding efficiency, welding precision and welding quality of the wire coils can be improved. The invention further provides an automatic welding method for the wire coils. The method includes a feeding procedure, a transferring and positioning procedure, a welding procedure and a discharging procedure which are all performed in sequence, wherein in the transferring and positioning procedure, the transferring manipulator is controlled to clamp, move and overturn the wire coils, meanwhile, the pressing and positioning mechanism is used for pressing, positioning and rotating the wire coils, and the welding procedure starts. The method can be used for solving the problem that the automation degree in the current welding industry is low.

The invention discloses a robot welding motion control method based on a laser seam tracking sensor. The method includes the steps that the world coordinate system of an initial welding robot, a robot tail end tool coordinate system, the welding gun initial point, laser triangular plane parameters, welding speed and motion time are set first; then the welding gun top end position point in the next control period is searched for from data points in a centralized mode according to measurement data of the laser seam tracking sensor; finally the optimal posture of the welding gun is searched for through a genetic algorithm. The robot welding motion control method has the advantages of being high in welding accuracy, high in execution efficiency, high in generality and capable of being widely applied to welding of various space unknown straight line or curve welding seams.

The invention provides an automatic circular welding machine for a plate roller plug. The circular welding machine comprises a lathe bed, a head stock and a tail seat, wherein a machine head is provided with a first speed-reducing motor; and a tail stock is provided with a second speed-reducing motor. The circular welding machine further comprises two four-wheel positioning centre frames, two finals, a third speed-reducing motor and two welding machines, wherein the two four-wheel positioning centre frames are arranged in the middle of the lathe bed at intervals; the two finals are rotationally arranged on the head stock and the tail seat respectively and oppositely; the third speed-reducing motor is installed on the head stock and connected with the finals arranged on the head stock in atransmission mode; and the two welding machines are respectively arranged above the head stock and the tail seat. In the invention, the excircle of a pipe and the centre hole of the plug are taken aspositioning references, the excircle of the pipe is centered by the four-wheel positioning centre frames, the centre hole of the plug is centered by the finals, and the centers of the four-wheel positioning frames and the two finals are in the same horizontal line. Thus, the concentricity of the centre hole of the plug and the excircle of the pipe is ensured, thereby ensuring the welding quality.

The invention relates to the technical field of agricultural machine machining, in particular to an automatic welding device for a rotary tillage cutter shaft. The automatic welding device comprises a numerical control part, a base part, a fixing part and a welding gun part. The numerical control part comprises a numerical control system and a transmission mechanism. The base part comprises a base shell, a sliding rail and a ball screw. The fixing part comprises a three-jaw clamping disc and a clamping seat. The welding gun part comprises a welding gun and a displacement adjusting mechanism. The automatic welding device is controlled through numerical control, the automation degree is high, the welding quality is high, a mechanical structure is simple, operation is stable, maintenance is easy and convenient, and the cost is low; and according to the rotary tillage cutter shaft welded through the automatic welding device, a rotary tillage cutter seat is more uniform in distribution, and the dynamic balance of the rotary tillage cutter shaft is better.

The invention discloses a laser-assisted intelligent trailing system for a welding line. The laser-assisted intelligent trailing system for the welding line is used for welding the welding line and comprises a binocular stereoscopic vision orientation module, a welding robot module and a laser assisted feedback module, wherein the binocular stereoscopic vision orientation module is arranged and fixed to be able to shoot the welding line; the welding robot module comprises a DSP control system, a welding gun adjusting device and a welding gun, the welding robot module is in signal communication with the binocular stereoscopic vision orientation module, and the welding robot module acts in response to parameter actions collected by the binocular stereoscopic vision orientation module; the laser-assisted feedback module comprises a laser sensor and a monocular camera, the laser-assisted feedback module is in signal connection with the binocular stereoscopic vision orientation module and the welding robot module respectively, and the laser-assisted feedback module feeds the detected parameters back to the binocular stereoscopic vision orientation module and the welding robot module. The invention also discloses a laser-assisted intelligent trailing method for the welding line.

The invention discloses a welding device of electronic elements on an integrated circuit board. The welding device comprises a base, a positioning clamping mechanism is fixedly arranged on the upper portion of the base, a welding mechanism is arranged on the side face of the positioning clamping mechanism, a control box is arranged on the upper portion of the base, and is electrically connected with the positioning clamping mechanism and the welding mechanism, and the positioning clamping mechanism comprises two opposite supporting frames of the same structure; each supporting frame comprises a bottom plate, a vertical plate is fixedly connected to the upper portion of each bottom plate, a reinforcing plate is arranged between each bottom plate and the corresponding vertical plate, a lifting sliding rail is arranged on the inner side of each vertical plate, the end of each lifting sliding rail is in an isosceles trapezoid, and racks are arranged on the two outer side inclined sides. The welding mechanism is adopted to weld the electronic elements, the welding efficiency is improved, the welding precision is improved, meanwhile, a CCD camera on the welding mechanism can detect the welded integrated circuit board, and whether the welding is good or not can be distinguished.

The invention discloses a flange type sleeve welding station. The flange type sleeve welding station comprises a pipe vibration feeding machine, a first flange vibration feeding machine, a second flange vibration feeding machine, a turnover feeding mechanism, a welding gun supporting assembly, a workpiece clamping manipulator mechanism, a first workpiece welding rotary assembly and a second workpiece welding rotary assembly; the pipe vibration feeding machine, the turnover feeding mechanism and the welding gun supporting assembly are sequentially arranged from left to right; the welding gun supporting assembly comprises a welding gun head stand column, a first welding nozzle assembly and a second welding nozzle assembly, and the first welding nozzle assembly and the second welding nozzle assembly are in symmetry left and right; the first workpiece welding rotary assembly is arranged under the first welding nozzle assembly; the second workpiece welding rotary assembly is arranged under the second welding nozzle assembly; the first flange vibration feeding machine is arranged right ahead of the first welding nozzle assembly; the second flange vibration feeding machine is arranged right ahead of the second welding nozzle assembly; the workpiece clamping manipulator mechanism is located behind the welding gun supporting assembly. Full-automatic welding of a flange type sleeve can be achieved, and production efficiency is improved.

The invention discloses a high-precision multi-axis motion three-dimensional micro-welding robot, and relates to the technical field of robots. The whole robot is of a standard table type robot structure, a high-precision machine vision positioning system, a high-performance graphite material superconducting welding system and a high-precision ultramicro dispensing system are arranged on a support, a three-dimensional rotating table is arranged on a work table board, and a high-precision direct drive transmission system and a central control system are connected and are arranged in the robot and are connected to an operation panel. Multiple frontier technologies of the high-performance graphite material superconducting welding system technology, the high-precision ultramicro dispensing system technology, the three-dimensional rotating table technology, the high-precision machine vision positioning system technology, the high-precision direct drive transmission system technology and the like are integrated, the robot can comprehensively replace the manual welding technology under a microscope, and the robot has the beneficial effects of being high in welding quality, welding speed, welding precision and welding efficiency.

The invention relates to the technical field of welding machines and discloses a welding machine with a welding smoke treatment function. The welding machine comprises a bottom plate, supporting plates are fixedly connected with two sides of the top of the bottom plate, a top plate is fixedly connected to tops of the supporting plates, an electric slide rail is fixedly connected between tops of opposite sides of the two supporting plates, a slider is in slide connection with the surface of the electric slide rail, and a first air cylinder is fixedly connected to the left side of the bottom ofthe slider through a supporting block. The welding machine with the welding smoke treatment function has advantages that particles and harmful gases in welding smoke can be filtered and adsorbed, harms caused by dizziness, headache, cough, chest distress, shortness of breath, smoke poisoning and the like to bodies of operating personnel inhaling a great quantity of welding smoke are prevented, andaccordingly safety in operation is improved for the operating personnel; primary cooling of welds can be realized, so that subsequent weld cooling time is shortened, operating efficiency is improved,and extensive popularization is benefited.

The invention relates to the technical field of welding machining of invisible well lids, in particular to welding equipment for automatically and efficiently welding reinforcing steel bars to an invisible well lid. The welding equipment comprises a rack, a storage frame, a clamping and feeding assembly, a material moving and bearing assembly, a reinforcing steel bar feeding assembly and a weldingassembly; the clamping and feeding assembly comprises a first rotary table arranged on the side, close to the storage frame, of the rack, a first lifting mechanism vertically mounted at the output end of the first rotary table, a first mounting support horizontally mounted at the output end of the first lifting mechanism, a clamping and driving mechanism arranged on the first mounting support anda positioning and clamping mechanism arranged at the output end of the clamping and driving mechanism; and the clamping and driving mechanism is in transmission connection with the positioning and clamping mechanism. According to the welding equipment for automatically and efficiently welding the reinforcing steel bars to the invisible well lid, the reinforcing steel bars of the invisible well lid can be automatically welded, the labor intensity is reduced, the working efficiency is improved, the welding precision is improved, and the multiple ends of a reinforcing steel bar net can be weldedat the same time.