12results about How to "Avoid Weld Quality Issues" patented technology

A kind of for turbine shell laser welding system belongs to turbine shell laser welding equipment technical field;Including turbine shell, the side of the turbine shell is provided with valve cover, the side of the valve cover is provided with rocker arm by welding connection, and the welding place of rocker arm and valve cover is provided with the welding ring of rocker arm and turbine shell valve cover handle, the side of the turbine shell is provided with the auxiliary mechanical clamp for clamping it, the side of the auxiliary mechanical clamp is provided rocker arm detection camera;The utility model can avoid the welding quality problem caused by the position deviation of rocker arm or the clamping error rocker arm by increasing rocker arm detection camera and LWM system, can detect process exception in production environment and feedback simultaneously, so that turbine shell welding qualification rate is increased from 92% to 99%, and welding position center can be detected by setting welding positioning camera simultaneously, to determine correct welding position.

The utility model relates to bridge engineering technical field, and disclose a kind of steel box girder and concrete pier column consolidation structure, including steel box girder, concrete pier column, shear nail and the adjusting member for adjusting the elevation of steel box girder installation, concrete pier column top is reserved with shear key, steel box girder bottom is equipped with for with concrete pier column top socket joint connection's notched, concrete pier column top outer circumferential wall is equipped with the slope of being inserted easily, concrete pier column top is inserted in the inside of notched, adjusting member includes jacking corbel and jack, jacking corbel is connected by bolt with the reserved planting bar on the outer wall below concrete pier column, jack is installed in jacking corbel top, jack top and steel box girder bottom are abutted. The present application is simple in structure, high in precision of factory prefabrication, force transmission is direct in socket design, stress concentration is small, and the elevation of section member is accurately adjusted, convenient for construction, applicable to complex environment and large-span bridge.

This invention provides a synchronous welding device for double-sided weld corners, relating to the field of welding equipment technology. The device includes a welding torch, a beam fixed to a vehicle body, and at least two swing arms. The swing arms are rotatably connected to the beam in the horizontal direction. At least two opposing swing arms form a group, with the welding torch located on one of the swing arms. The two welding torches in the same group are used for welding the opposite sides of the weld corner. At least one of the two swing arms in the same group is inclined along the axis of the vehicle body, and the horizontal linear distance between the two swing arms gradually decreases along the welding travel direction. A guide wheel is provided at the bottom of the swing arm, inclined relative to the axis of the vehicle body. When the vehicle body travels within the component along the welding direction, the guide wheel pulls the swing arm towards the welding position, so that the wire exit position of the welding torch is in contact with the weld. This device can solve the problems of synchronous welding on both sides of the component and inaccurate weld tracking, improving welding efficiency and weld quality stability.

The invention relates to a full-assembly type post-pouring-free PEC beam column connecting joint which comprises a prefabricated PEC column, a prefabricated PEC cross beam and a prefabricated PEC longitudinal beam, the prefabricated PEC column comprises H-shaped steel and concrete, and column connecting pieces are fixed to the periphery of the H-shaped steel; beam end plates are arranged at the ends, facing the prefabricated PEC columns, of the prefabricated PEC cross beams and the prefabricated PEC longitudinal beams, beam connecting pieces are connected to the beam end plates, the beam connecting pieces and the column connecting pieces are in butt joint and fixed, the beam connecting pieces and the column connecting pieces are jointly wrapped with channel steel, and gaps in the channel steel are filled with heat preservation and sound insulation materials. The construction method has the beneficial effects that the connection strength and rigidity are guaranteed, the transportation difficulty is reduced, the self weight of the structure is reduced, the transportation cost is reduced, the use of formworks is reduced, and the construction period is shortened; the welding quality problem of field welding connection is avoided, the bearing capacity of the structure is improved, construction is convenient and fast, reliability is good, corrosion resistance is excellent, and the heat preservation and sound insulation effects are achieved.

The invention discloses a welding device for transport vehicle manufacturing, and relates to the technical field of transport vehicle manufacturing devices, in particular to a welding device for transport vehicle manufacturing, which is used for welding a steel plate on a transport vehicle and comprises a mounting frame, a welding part, a first worktable, a second worktable and a driving part, and the two workbenches are arranged to alternately move to the welding position, so that the continuity of the welding process is realized. When the first working table is used for welding, the second working table can clamp and position a steel plate at the same time, and after the first working table finishes welding, the second working table quickly moves to the welding position to carry out the next round of welding, so that the welding efficiency is greatly improved. In addition, the driving component adopts a chain transmission mode, so that stable and rapid movement of the two workbenches can be realized, and the welding period is further shortened. According to the continuous welding mode, the production efficiency is improved, the idle time of equipment is shortened, and the production cost is reduced.

This application relates to the field of welding technology, and in particular to a temperature control method and related equipment for a laser solder wire welding machine. The method includes: acquiring the real-time temperature and suitable temperature of the solder joint based on current operating information; acquiring a first temperature difference based on the real-time temperature and the suitable temperature; if the first temperature difference exceeds a first temperature threshold, acquiring the current laser power; acquiring a power-temperature conversion relationship; if the current laser power is greater than the rated minimum power but less than the rated maximum power, acquiring a first power difference based on the current laser power and the rated minimum power, and acquiring a second power difference based on the current laser power and the rated maximum power; acquiring a corresponding adjustable temperature range based on the power-temperature conversion relationship, the first power difference, and the second power difference; and adjusting the current laser power based on the adjustable temperature range and the suitable temperature of the solder joint. This application helps improve the temperature control capability of the laser solder wire welding machine, thereby improving welding quality.

The utility model discloses a novel horizontal support bolt connecting structure at the intersection of beams, which is characterized in that the side surface of a main beam is detachably connected with a secondary beam, connecting angle steel is arranged between the main beam and the secondary beam, the side surface of the connecting angle steel is fixedly connected with a fixed block I and a fixed block II, and the inside of the fixed block I is detachably connected with a support rod; connecting grooves are formed in the connecting angle steel, and high-strength bolts are arranged in the connecting grooves. The side surface of the main beam is fixedly connected with a first connecting plate, the side surface of the secondary beam is fixedly connected with a second connecting plate, the two sides of the first connecting plate are fixedly connected with a first fixing plate and a second fixing plate respectively, the side surfaces of the first fixing plate and the second fixing plate are fixedly connected with a first sealing plate, and the lower surfaces of the first fixing plate and the second fixing plate are fixedly connected with a second sealing plate. The connecting structure has the advantages that welding connection is changed into multi-position threaded connection, the welding seam quality problem or fire hazards are avoided, the high-stability connecting and fixing function is achieved, and therefore the application range of the connecting structure is widened.

This utility model provides an automatic welding fixture for fire extinguisher brackets, comprising: a fixed base with a rotating chassis at its upper end; a cylinder fixing plate driven to rotate by a servo motor through a reducer on the rotating chassis; a positioning jig with a positioning pin at its upper end, positioned at the center of the cylinder fixing plate; a circumferential clamping mechanism including a small upright plate, a large upright plate clamping cylinder, and a clamping positioning plate with a supporting platform; and a top clamping mechanism including a top-pressing cylinder and a positioning clamping block with a clamping groove. This fixture, through the coordinated operation of its components, achieves automatic rotary welding of fire extinguisher brackets, improving welding efficiency, ensuring quality, reducing labor intensity, and is suitable for automated production of fire extinguisher brackets.

The utility model discloses an automobile wire harness terminal ultrasonic welding device relates to the field of automobile wire harness processing, and it is including: ultrasonic welding machine body, the one side fixed connection of ultrasonic welding machine body has electric telescopic handle, and the one end fixed connection of electric telescopic handle has the ultrasonic welding head of ultrasonic welding machine body's sliding limit, and the one side of ultrasonic welding head is provided with welding pressure piece, and welding pressure piece is fixedly connected in the one side of ultrasonic welding machine body, and the one side rotationally connected of ultrasonic welding machine body has wire slot wheel, and the one side of wire slot wheel is annular and has a plurality of discharge grooves in equal interval structure, and the discharge groove is elastically connected with the pressing plate in the discharge groove through spring piece, and the one side of wire slot wheel is provided with driving motor and material limiting plate. The automobile wire harness terminal ultrasonic welding device, through driving motor drives wire slot wheel to rotate, and the discharge groove on wire slot wheel sends terminal copper sheet to welding position in turn, and material limiting plate guarantees that only one terminal copper sheet enters the welding area each time, realizes automatic feeding.

The utility model belongs to welding frock technical field discloses a kind of inner thread water pipe welding frock, including module combination base, positioning device and cylinder driving system;Module combination base is composed of height module and first mounting plate, and height module is fixedly installed on first mounting plate;Cylinder driving system includes cylinder and second mounting plate, and cylinder is fixedly installed on the reverse of second mounting plate;Positioning device includes positioning protection, copper conductive positioning and positioning column, and positioning column is fixedly installed on the front of second mounting plate;The utility model uses the pad block or screw adjusting mechanism of stackable, realizes fine adjustment precision, so that frock can flexibly adapt to the welding demand of different height, positioning protection adopts the arc structure made of high-temperature-resistant insulating material, and accurately adapts with workpiece surface, accurately presses workpiece under cylinder driving, effectively prevents the damage of welding splashing to inner thread, protects the integrity of inner thread, avoids welding defect caused by splashing.

This invention discloses a welding device for automotive rear axle housings, belonging to the field of rear axle housing welding technology. It includes a base, with a chuck fixing seat fixedly mounted on one side of the top of the base. A stepper motor is fixedly mounted inside the chuck fixing seat, and the output end of the stepper motor extends out of one side of the chuck fixing seat and is fixedly connected to an electric chuck. By setting the chuck fixing seat and the internal stepper motor and electric chuck on the top of the base, and cooperating with the first electric telescopic rod, rotating seat, and clamping sleeve on the clamping frame, precise clamping of both ends of the rear axle body is achieved. Simultaneously, the two third electric telescopic rods and the pre-clamping frame in the pre-clamping mechanism pre-position and support the middle section of the rear axle body, forming a three-point positioning structure of "fixed ends + middle section support." This structure significantly improves the positioning accuracy and stability of the rear axle body, effectively reduces welding deformation, and improves the quality of the welded joint and the overall strength of the rear axle housing.

The application belongs to the technical field of hydraulic engineering manufacturing, and provides a large-span water conservancy gate and a manufacturing process thereof; in a historical symmetry welding period, a visual sensor is used to simultaneously monitor welding tracks of welding joints in symmetric directions to obtain A welding sub-track and B welding sub-track; the welding seams on both sides of the A welding sub-track and the B welding sub-track are analyzed from the space X axis, the space Y axis and the space Z axis, respectively; the overall fitting degree of the A welding sub-track and the B welding sub-track in the three-dimensional space is reflected, that is, the consistency comprehensive performance of the welding seams on both sides in each dimension, so as to help reduce the vibration and shaking of the gate in the running process due to the inconsistent welding seam positions, make the structure stress of the gate more uniform, enable the gate to bear greater external force, effectively reduce the gap at the welding seam, improve the sealing performance of the gate, and prevent the occurrence of problems such as water leakage.