268results about How to "Precision welding" patented technology

The invention provides a portable stirrup welding device for high pier construction, and relates to the technical field of box girder stirrup welding equipment.The portable stirrup welding device comprises a welding hand-held piece, and a steel bar storage part is installed on the welding hand-held piece; the steel bar storage part is used for storing stirrup connecting bars; a connecting rib pushing piece is mounted on the welding handheld piece; the connecting rib pushing piece is used for pushing stirrup connecting ribs; two stirrup prestress pieces are mounted on the welding handheld piece; the two stirrup prestressed parts are used for pulling stirrups; prestress annealing welding can be achieved, the welding tension degree is poor, meanwhile, the accuracy of welding seams can be affected by deviation of the stirrups, and the problems that the welding efficiency is low, the stirrups are not convenient to automatically correct and the tension degree of the welded stirrups is poor due to the fact that welding work of the stirrups for high pier construction mostly adopts manual handheld welding gun operation are solved.

The invention relates to automatic welding equipment for oil and gas pipelines and a welding method.The automatic welding equipment for the oil and gas pipelines comprises a horizontal supporting plate, a fixed supporting plate, a sliding supporting plate, a driving mechanism, a pipeline supporting rod and a plurality of supporting rod assemblies, and the fixed supporting plate is fixed to the upper surface of one end of the horizontal supporting plate; the sliding supporting plate is slidably connected to the upper surface of the other end of the horizontal supporting plate and can be close to or away from the fixed supporting plate. The driving mechanism is installed on the fixed supporting plate, the driving end of the driving mechanism is connected with one end of the pipeline supporting rod, a rotating bearing is arranged at the other end of the pipeline supporting rod, a containing groove used for containing the rotating bearing is formed in the upper end of the sliding supporting plate, and the pipeline supporting rod and the horizontal supporting plate are arranged in parallel. The multiple supporting rod assemblies are arranged on the outer surface of the pipeline supporting rod and can move in the radial direction of the pipeline supporting rod. The welding point at the joint of the first oil-gas pipeline and the second oil-gas pipeline is more accurate, the welding use standard of a user can be met, and the welding requirement of the user for the pipeline is met.

The utility model provides an automatic welding device for an epoxy zinc-based composite stand column, and relates to the technical field of welding. The utility model is used for solving the technical problems in the prior art that a large amount of spark sputtering substances are generated during welding, so that workers are easily burnt, and fire-fighting hidden dangers also exist. The automatic welding device for the epoxy zinc-based composite stand column comprises a base, a workbench, a servo motor, a rotary disc, a welding gun and a clamping assembly, the workbench is installed above the base, the rotary disc is rotationally arranged on the workbench, the servo motor is installed on the base, an output shaft of the servo motor is fixedly connected with the rotary disc, and the welding gun is fixedly connected with the rotary disc. A welding gun and a clamping assembly used for clamping the stand column and preventing the stand column from toppling are arranged on the workbench. The elastic pieces on the two sides push the second guide rods and the contact plates on the two sides to get close to the middle, the second guide rods drive the connecting rods and the cover plates fixedly connected with the connecting rods to get close to the middle, the two cover plates shield the working area of the workbench, and the effect of preventing sparks from sputtering during welding is achieved.

The invention discloses welding equipment for production of a refrigeration temperature controller of a refrigeration house, and relates to the technical field of welding equipment.The welding equipment comprises a cabinet and a machining mechanism, the machining mechanism comprises a connecting sliding block and an air cylinder, a hydraulic cylinder is installed on the side of the outer side of the connecting sliding block, and a welding main machine is fixedly installed at the telescopic end of the hydraulic cylinder; a welding gun is installed at the bottom of the welding main machine, a heat preservation assembly is installed on the outer side, close to the bottom, of the welding gun and comprises an annular sliding part, a cylinder is fixedly installed on the edge side of the outer side of the annular sliding part, and a reset spring is fixedly installed between the top of the cylinder and the conical face of the top of the outer side of the welding gun. A heat conducting piece is fixedly installed on the side of the inner cavity of the cylinder and close to the edge of the annular sliding piece, and a clamping piece is fixedly installed on the outer circle face of the cylinder and close to the bottom through a connecting rod. According to the welding equipment for production of the refrigeration temperature controller of the refrigeration house, the heat preservation effect is achieved, heat preservation can be conducted, the situation that the temperature difference is too large is not likely to occur, and the welding quality is high.

The invention relates to an automobile body-in-white welding process planning method, which comprises the following steps of: performing data acquisition through terminal equipment, collecting welding process data in a welding process, and monitoring the running state of a welding robot in real time; edge computing nodes are arranged on a welding site and are responsible for preprocessing collected welding process data and extracting knowledge in real time; the cloud constructs a welding process knowledge graph according to the existing enterprise historical data and the welding process data extracted by the edge end knowledge; and after the cloud establishes a welding process knowledge graph, optimizing body-in-white welding process parameters and carrying out optimization solution on a body-in-white welding path and a body-in-white welding spot welding sequence on the basis of an improved artificial neural network-based automobile body-in-white welding process planning method. The method can adapt to different welding scenes and requirements, the method can adapt to shapes and materials of different workpieces, and efficient and accurate welding is achieved.

The invention belongs to the technical field of welding, and discloses a dissimilar metal power modulation galvanometer laser welding method which comprises the following steps: finely cleaning a 6061 aluminum alloy and a 304 stainless steel plate by using acetone, and then airing for more than 20 minutes; the aluminum steel sheet is assembled, pressed and fixed on a welding test platform in a steel-up-aluminum-down mode; the position of the welding test platform is adjusted, argon serves as welding protection gas, and a protection gas nozzle is arranged to be aligned with a welding pool area; laser welding parameters are set, a laser power modulation mode is set to be a gradient power mode, and the gradient power mode is to regulate and control phase point laser power in a circular scanning track in the advancing direction of a welding seam; a welding test is carried out in the mode that a galvanometer laser head is fixed and a welding test platform is moved, and a laser and the welding test platform are synchronously started and stopped; and the protective gas is started 5 seconds before the laser is started, and after the laser is stopped, the protective gas is stopped lagging for 10 seconds so as to continuously protect the welding seam and prevent oxidation.

The invention discloses a mechanical arm welding clamp for steel structure machining. Relates to the technical field of manipulator welding fixtures, and comprises workbenches, rotary tables are mounted on both sides of the top surface of the workbenches, rotating shafts are transversely and rotatably connected to the upper ends of the two workbenches, clamping assemblies are arranged at the upper ends of the workbenches, and a moving transmission assembly and a welding assembly are arranged at the rear ends of the workbenches; through cooperation of the hand wheel and the positioning screw rod, the two-way lead screw can be locked conveniently, and therefore the situation that a workpiece is too heavy and cannot be clamped is avoided; through cooperation of a jacking plate and a jacking air cylinder, a servo motor and a driving gear can be conveniently controlled to ascend and descend, then movement of a moving box and rotation of a mechanical arm are controlled, and therefore accurate positioning is facilitated; through cooperation of the first welding gun and the second welding gun, the mechanical arm can make continuous contact with a workpiece for welding or spot welding, so that the welding diversity is improved, and the welding modes of different positions of the workpiece are met; the device meets the requirement that different positions of a workpiece need different welding modes, and the welding efficiency is improved.

The invention discloses an automatic welding device and method for FPSO ship body transverse butt welding seams, the automatic welding device comprises ship body steel plates and an equipment moving bottom plate, the number of the ship body steel plates is two, connecting grooves are formed in the side portions of the two ship body steel plates close to each other, and a fixing column is installed on the equipment moving bottom plate through a lifting height adjusting assembly; according to the ship body steel plate welding device, the contact roller is always in contact with a ship body steel plate during welding through the arranged contact self-adaptive adjusting assembly, the welding head can adjust the position in a self-adaptive mode and is always located at the position of one side of a welding seam, welding is more accurate, a connecting groove is polished through the arranged polishing assembly before welding, the welded part is smoother and smoother, and welding quality is improved. Stability after welding is facilitated, the problem that the welding quality is affected due to the fact that a welding part has rust is solved, chippings and rust are blown away through the air blowing assembly after grinding, and therefore the position of a connecting groove is cleaner, and the welding quality is guaranteed.

The invention relates to the technical field of welding equipment, in particular to a steel formwork welding mechanism for bridge pier pouring and a welding method thereof.The steel formwork welding mechanism comprises a workbench, a limiting plate, a connecting frame and an elastic supporting piece, a portal frame is slidably arranged on the workbench, the limiting plate is fixedly arranged on the workbench, and the connecting frame is slidably arranged on the portal frame; the invention discloses a steel formwork welding mechanism for bridge pier pouring and a welding method of the steel formwork welding mechanism, the steel formwork welding mechanism comprises a connecting frame, an elastic supporting piece arranged on the connecting frame in a sliding mode and a flexible rail fixedly installed at the bottom end of the elastic supporting piece, and a welding head is arranged on the flexible rail in a sliding mode, and according to the steel formwork welding mechanism for bridge pier pouring and the welding method of the steel formwork welding mechanism, through design of the elastic supporting piece and the flexible rail, the flexible rail can be attached to the surface of a formwork; and therefore, the welding head accurately welds the template when moving along the flexible track, and the welding precision and efficiency are improved.

The utility model discloses a full-automatic conjoined welding machine which is used for conjoined welding of a supporting rod and a foot rest ring of a swivel chair, the welding machine comprises a machine frame, a rotating disc unit, a supporting rod clamping unit, a foot rest ring clamping unit, a gun feeding unit and a controller, the rotating disc unit comprises a rotating disc and a rotating disc driving mechanism, the support rod clamping unit comprises a support rod clamping mechanism and a turnover mechanism, the footrest ring clamping unit comprises a footrest ring clamping mechanism and a calibration mechanism, and the gun feeding unit comprises a welding gun and a welding gun driving mechanism. The supporting rod clamping mechanism and the footrest ring clamping mechanism are used for carrying out overall overturning operation on the supporting rod and the footrest ring, girth welding can be carried out on two pipe feet of the footrest ring in sequence, the positioning precision and the welding efficiency of a connected welding area are improved, the welding process is automatic, accurate and efficient, and the welding quality is good.

The invention relates to the field of stainless steel pipe machining, in particular to a stainless steel pipe splitting machine which comprises a supporting unit, and a cutting assembly and a cutting assembly are arranged on the supporting unit. The supporting unit comprises two rectangular frames symmetrically erected on the ground, each rectangular frame is provided with a driving assembly, the driving assemblies are used for driving stainless steel pipes to rotate and comprise first lead screws arranged in the rectangular frames, the first lead screws are in threaded connection with sliding blocks, and driving motors are arranged on the two sides of the upper ends of the sliding blocks. The end part of the driving motor is fixedly connected with a wheel body; the surface of the stainless steel pipe is extruded on the surface of the wheel body; the designed stainless steel pipe splitting machine, the designed cutting assembly and the designed cutting assembly are matched with one another to machine the stainless steel pipes, cutting into grooves and cutting off and segmenting are sequentially completed, stainless steel pipe materials do not need to be transferred in the period, compared with an existing machining mode, multiple links can be omitted, the production and machining efficiency can be improved, and when the cutting assemblies are executed, the machining efficiency is improved. Two grooves can be machined at the same time, and efficiency is improved.

The invention provides metal welding equipment and a using method thereof, and belongs to the technical field of welding, the metal welding equipment comprises a base, a workbench, a welding machine, a protection frame, a positioning cylinder, a clamping correction mechanism and a rotating mechanism, the workbench is fixedly connected to the center of the top of the base; the welding machine is arranged on the upper side of the workbench. The protection frame is fixedly connected to the top of the base, and the two positioning cylinders are arranged on the two sides of the workbench correspondingly and rotationally connected into the protection frame; the two clamping and correcting mechanisms are arranged on the corresponding positioning cylinders correspondingly and used for clamping and fixing the pipe fitting and correcting the position. The rotating mechanism is arranged on the base and used for driving the two positioning cylinders to rotate synchronously so as to be matched with the welding machine to conduct welding work. The automatic correction function is achieved when the pipe fitting is fixed, it is guaranteed that the pipe fitting can be accurately welded, deviation is avoided, annular welding work and automatic welding operation are achieved in cooperation with a welding machine, and the working efficiency is effectively improved.

The utility model discloses a rotating shaft welding tool jig, which relates to the technical field of rotating shaft welding, and comprises a fixing sleeve, an upper electrode and a lower electrode, the upper electrode is arranged above the fixing sleeve, the lower surface of the fixing sleeve is provided with a lower electrode hole, the lower electrode hole is internally in threaded connection with the lower electrode through a bolt, and the rotating shaft welding tool jig further comprises a limiting structure. The limiting structure is arranged on the upper surface of the bolt and comprises a fixing block, a hole corresponding to the pin shaft in shape is formed in the upper surface of the fixing block, the lower electrode penetrates and extends into the hole, and a first pin groove corresponding to the PIN in shape is formed in the upper surface of the fixing block. According to the utility model, through the guide structure, the upper electrode can accurately weld the welding center points of the PIN and the pin shaft, and the welding process is faster and more accurate; by means of the discharging structure, welded workpieces can be discharged more quickly and conveniently.

The invention belongs to the technical field of laser welding, and discloses an aluminum alloy laser welding device which comprises a box body, a box cover is rotatably connected to the top of the box body, an opening is formed in the front side of the box body, supporting legs are fixedly connected to the bottom of the box body, and supporting columns are fixedly connected to the inner bottom of the box body. A clamping device is fixedly connected to the top of the supporting column, a laser frame is rotatably connected to the bottom of the interior of the box body, a laser head is rotatably connected to the top of the laser frame, and an adjusting device is fixedly connected to the rear side of the laser head; through an adjusting device, distance changes are detected through a distance sensor, an electric lead screw is rotated to adjust the position of a concave lens to change the laser gathering position, efficient welding is conducted on the position needing to be welded, meanwhile, a light reflecting plate can change along with the position change of the concave lens, and the welding efficiency is improved. And laser diffused to the side wall of the light-transmitting groove is accurately reflected to the concave lens, so that the laser energy utilization rate is improved, and welding is more efficient.

The invention relates to the technical field of manufacturing of micro parts of electronic equipment, in particular to a rotating shaft decorating part of a folding screen mobile phone and a preparation method of the rotating shaft decorating part. The rotating shaft decorating part comprises a metal connecting part, an injection molding part and a metal plate, and the metal connecting part comprises a first end extending in the vertical direction and a second end extending from the bottom of the first end in the transverse direction; the second end comprises a first side face and a second side face which are oppositely arranged in the vertical direction. The injection molding part comprises a wrapping part wrapping the first end, an extension part attached to the first side face and a reinforced connecting part extending in the vertical direction. The extension part is connected with the wrapping part, and the reinforced connecting part is connected with the extension part; the metal plate adheres to the second side face and the reinforcing connecting part and is welded to the second end. On one hand, the connecting strength of the injection-molded part and the metal connecting part is enhanced, the probability that the injection-molded part is separated from the metal connecting part is reduced, on the other hand, the connecting strength of the injection-molded part and the metal part is also enhanced, and the probability that the injection-molded part is separated is reduced.

The utility model discloses a stainless steel inner floating disc welding device. The device comprises a shell, four first sliding rails are fixedly connected to the inner surface of the shell, four first sliding blocks are slidably connected to the inner surfaces of the four first sliding rails, a shielding cover is fixedly connected to the rear surfaces of the four first sliding blocks, the shielding cover communicates with an exhaust box shell, and an exhaust assembly is arranged on the exhaust box shell; two filter screens are fixedly connected to the inner surface of the exhaust box shell, a light-proof window is formed in the shielding cover, two first sliding rods are fixedly connected to the inner surface of the shell, two first electric telescopic rods are fixedly connected to the inner surface of the shell, and second sliding blocks are fixedly connected to the other ends of the two first electric telescopic rods correspondingly; the two second sliding blocks are slidably connected to the first sliding rods correspondingly, through the structure, generated harmful gas can be absorbed in the welding process, strong light can be shielded, and the safety of workers is protected.

A butt joint support for welding machining of steel sheet piles comprises a base, a fixed supporting sleeve, a limiting supporting rod, a driving gear disc, a rotating disc, a containing plate, a fixed pressing plate and a positioning supporting rod, annular plates are arranged on the two sides of the fixed supporting sleeve, the rotating disc is attached to the inner sides of the annular plates, the rotating disc is provided with a limiting sliding groove, and the annular plates are provided with a plurality of supporting rod penetrating holes; the limiting supporting rods penetrate through the supporting rod penetrating holes, the inner ends of the limiting supporting rods are connected with the limiting sliding grooves, the outer ends of the limiting supporting rods are connected with an annular plate, the lower portion of the annular plate is provided with a fixed vertical plate, the lower portion of the fixed vertical plate is connected with a base, and the lower portion of the base is connected with a fixed supporting block. The driven gear disc is meshed with the driving gear disc and connected with the driving gear disc, supporting protruding sleeves are arranged on the two sides of the driving gear disc, fixing vertical plates are attached to the outer sides of the supporting protruding sleeves, the fixing vertical plates are connected with a motor, and the motor is connected with a driving connecting rod.

The utility model provides a seamless steel tube welding support device, which relates to the technical field of seamless steel tube welding support and comprises a bottom plate, two mounting plates are arranged on the bottom plate, circular grooves are arranged on the mounting plates, a mounting structure is arranged on the two mounting plates jointly, the mounting structure mainly comprises two rotating rings, and the rotating rings are arranged on the bottom plate. The two rotating rings are both rotationally connected to the mounting plate, first gears are fixedly connected to the rotating rings, second gears are connected to the first gears in an engaged mode, the second gears are rotationally connected with the mounting plate, an outer rod is fixedly connected to one second gear, an inner rod is fixedly connected to the other second gear, and the outer rod is fixedly connected to the inner rod. According to the welding device, the problems that a seamless steel pipe needs to be welded by a circle along the outer diameter, the connecting position located at the bottom is shielded by the steel pipe, welding is not convenient for workers, and the welding precision is reduced are solved.

The utility model is suitable for the technical field of sheet metal part welding, and provides a sheet metal part welding device which comprises a base, an L-shaped back plate, a welding platform and a welding platform, wherein the top of the base is provided with the L-shaped back plate; the transverse limiting rods are fixedly mounted on the inner wall of the base; the two limiting grooves are formed in the base; the butt joint mechanism is arranged on the base, and the butt joint mechanism is used for butt joint of sheet metal parts; the two turnover mechanisms are arranged on the butt joint structure and used for controlling the sheet metal parts to turn over; and the two clamping and fixing mechanisms are arranged on the two overturning mechanisms correspondingly, and the two clamping and fixing mechanisms are used for clamping and fixing the sheet metal parts. The sheet metal part welding device provided by the scheme not only has the functions of clamping, fixing and butting sheet metal parts, but also can control the sheet metal parts to turn over in the welding process, so that the welding process is time-saving and labor-saving, and the welding efficiency is relatively high.

The invention relates to an automatic spot welding method and system for a motor rotor of an electric tool and an intelligent terminal, and relates to the technical field of welding, and the automatic spot welding method comprises the steps that a weight detection value and image detection information detected by an operation table of a spot welding machine are obtained; analyzing and determining weight specification information according to the weight detection value; a specification gap reference position point is called based on the weight specification information; analyzing and determining a gap detection position point according to the image detection information and the weight specification information; analyzing a deviation distance between the specification gap reference position point and the gap detection position point and taking the deviation distance as a gap position deviation distance value; and according to the corresponding relation between the gap position deviation distance value and preset rotation angle adjustment information, rotation angle adjustment information corresponding to the gap position deviation distance value is determined, and the rotation angle adjustment information is output to an operation table of the spot welding machine so that angle adjustment can be conducted on the motor rotor. The motor rotor has the effect of improving the overall performance quality of the motor rotor.

The invention discloses welding clamping equipment for steel structure machining, and belongs to the field of steel structure machining. Comprising a transverse plate, a clamping cavity is formed in the upper surface of the transverse plate, extending cavities are symmetrically and fixedly connected to the two sides of the transverse plate, a supporting plate is fixedly connected to the front portion of the lower surface of the transverse plate, an inclined block is fixedly connected to the rear portion of the lower surface of the transverse plate, and a clamping power cavity is fixedly connected to the front surface of the transverse plate; the equipment stably clamps the steel structural part through a complex mechanical transmission structure, the clamping plate can accurately fix the steel structural part in the clamping cavity under driving of the motor, welding defects caused by shaking of the steel structural part in the welding process are avoided, guarantee is provided for high-quality welding through stable clamping, and the welding quality is improved. The welding seam is uniform and firm, the overall strength and stability of the steel structure are greatly improved, and high-quality welding is crucial in the fields of buildings, bridges, mechanical manufacturing and the like.

The invention relates to the technical field of hardware product welding equipment, and particularly discloses gantry welding equipment adaptive to hardware product machining, the gantry welding equipment comprises a fixed frame, movable frames are slidably arranged on the left side and the right side of the interior of the fixed frame, and connecting frames are fixedly arranged on one sides of the two movable frames. The structural design of the fixed frame and the movable frame is adopted, and a linkage system of the electric sliding table and the lifting frame is matched, so that the height of parts is adjustable, the welding requirements of hardware products of different sizes and shapes are easily met, and the problem that the application range of products is limited due to the single height of fixed welding equipment in the prior art is effectively solved; compared with the prior art, the device has the advantages that the universality and flexibility of the device are improved, meanwhile, the welding machining efficiency of hardware products is improved, the production process is optimized, meanwhile, the remarkable environment friendliness and operation convenience are achieved, and the device has important significance in promoting production automation of the hardware manufacturing industry and improving the machining precision and the environment protection efficiency.

The utility model discloses a welding wire and laser center aligning structure for laser welding, relates to the field of laser welding, solves the problem that the position of a welding wire part is difficult to adjust for follow-up efficient welding according to the requirements of the position and specification of a welding seam in the conventional device, and adopts the following scheme that the welding wire and laser center aligning structure comprises a laser welding head, a main body of the clamping assembly is a clamping sleeve, a fixing table is fixedly installed at the top of the clamping sleeve, the fixing table is slidably sleeved with a sliding table, and a wire feeding assembly is assembled on the top side of the sliding table; a welding wire part is arranged in the wire feeding assembly; according to the welding wire and laser center alignment structure for laser welding, through the arrangement of a wire feeding assembly in a clamping assembly on the top side of a laser welding head, a wire feeding pipe can be pressed on the inner side of a pipe groove in the wire feeding assembly by screwing an adjusting bolt, the position of a welding wire part at the front end of the wire feeding pipe is synchronously adjusted, and therefore the contact position of the welding wire part and laser at the front end of the laser welding head is adjusted; and the precise welding effect is achieved.

The utility model discloses a metal structural part welding fixing mechanism which comprises a transverse adjusting base, longitudinal adjusting devices are installed at the two ends of the top of the transverse adjusting base in a sliding mode, fixing devices are installed at the tops of the longitudinal adjusting devices in a sliding mode, and clamping assemblies are rotatably installed in the fixing devices. According to the scheme, the longitudinal deviation of the metal structural part at the right end is adjusted freely, different welding positions of the metal structural part can be adapted, the clamping frequency is reduced, and then the welding efficiency of the metal structural part is improved; by starting a rotating motor, clamping bottom plates at the two ends of the top of a base frame rotate on the surface of a fixed outer ring, metal structural parts clamped by the clamping plates rotate, then the contact position between the two metal structural parts is adjusted, multi-angle welding is achieved, the positions of the rotating metal structural parts are adjusted through a longitudinal adjusting device, and welding efficiency is improved. Position deviation caused by rotation of the metal structural part is made up, and therefore accurate welding is achieved.

The present application relates to a wall panel welding device and a welding method for a large storage tank, and in particular to the field of welding and installation of annular wall panels of large storage tanks. The device includes a base, an annular track, a ring frame, multiple internal welding mechanisms, multiple vertical frames, multiple clamping devices, multiple lifting frames, and multiple external welding mechanisms. The annular track supports the bottom of the wall panel, the ring frame abuts against the inner peripheral wall of the wall panel, the internal welding mechanism welds the inner side of the wall panel, the vertical frame is arranged around the annular track and forms a feeding channel, the clamping device clamps the outer side of the wall panel, and the lifting frame drives the external welding mechanism to weld the outer peripheral wall of the wall panel. The present application also provides a wall panel welding method for a large storage tank using the device. Through the above-mentioned device and method, efficient and accurate installation and welding of the entire annular wall panel of a large storage tank are achieved, which improves work efficiency and reduces installation costs.

The invention belongs to the technical field of ship manufacturing, and particularly relates to an optimization method for a transition area between stem round steel and an outer plate of a ship. The optimization method comprises the following steps that a round steel is designed and installed on the ship bow, and the round steel is clamped through outer plates on the two sides; adjusting relative positions and welding positions of the outer plate and the round steel at different height positions of the ship, so that the round steel is in smooth transition with the outer plate at the upper end and the lower end; designing nodes in the profile map of each height position of the round steel, so that the round steel protrudes to be matched with the line type of the ship planking; the upper and lower ends of the round steel are gradually transited and are smoothly connected with the outer plate; a wood pattern is manufactured according to data provided by the nodes and used for checking the appearance and the data on site; a plurality of datum lines are designed and positioned and correspond to the datum lines of the ship body; according to the method, the attractiveness of the ship stem is improved, the water flow resistance is reduced, and the economical efficiency of ship operation is improved.

The utility model discloses a straw basket frame steel wire welding tool which comprises a main shell, a guide sleeve is fixed to one side of the main shell in a welded mode, fixing frames are correspondingly arranged in the main shell, welding guns are installed on the tops of the fixing frames, the bottoms of the welding guns extend into the position between the two fixing frames, and the welding guns are connected with the guide sleeve. A shaping roller is correspondingly and rotationally installed on the inner wall of the main shell, a guide roller is movably connected to the outer wall of one side of the main shell through a bearing, a winding column is movably installed on the outer wall of the bottom of the main shell through a bearing, and a motor is fixedly installed on the inner wall of the bottom of the main shell through a bolt; the output end of the motor is movably connected with the winding column through a coupler, a vertical rod is fixedly connected between the two fixing frames in a welded mode, sliding blocks are installed on one sides of the fixing frames in a sliding mode, and a movable shell is fixedly connected between the two sliding blocks through bolts.

The utility model provides an auxiliary structure that inverter sheet metal is used, relates to sheet metal processing technical field, include: bottom plate, the left and right sides of bottom plate top all weld a block adjusting support board, the left and right sides of bottom plate top still weld two groups of four guide posts, four guide posts outside all install a spring, still slide and install a block lower pressure plate between the two groups of guide posts of bottom plate top, the left and right sides of the top of two block adjusting support boards are all through thread screw joint has a locating screw, the left and right sides of the front of side support board also weld two groups of four guide posts, the guide post outside slide and install a block side pressure plate of side support board front, the left and right sides of side support board front still rotate and install two screw rods. This structure can clamp and fix when welding sheet metal part, will not appear the condition of activity in the welding process, guarantees welding accuracy.

The invention discloses a welding combined type spiral bevel gear milling cutter and a welding tool, and relates to the technical field of welding. The milling cutter comprises a base, a connecting seat is welded to the top of the base, a milling cutter body is welded to the top of the connecting seat, a positioning device is arranged at the top of the base and comprises a first positioning groove, the inner wall of the first positioning groove is formed in the top of the base, and a second positioning groove is formed in the bottom of the connecting seat. A hollow positioning column is clamped to the inner wall of the first positioning groove. Through the arrangement of the positioning device, the first positioning groove, the second positioning groove and the hollow positioning column are matched, the connecting base and the milling cutter body are welded to the base through welding bonding points, the hollow positioning column is clamped into the first positioning groove, and then the second positioning groove of the connecting base is aligned to the hollow positioning column; therefore, the base can be accurately welded together, and local weaknesses or defects such as air connecting holes and cracks are avoided.

The utility model belongs to the technical field of welding devices, and discloses a quick welding device for a pcb (printed circuit board), which comprises an operating platform, a bearing plate is arranged on the operating platform, a welding component is arranged above a supporting block, a mounting groove is formed in the bearing plate, a mounting plate is arranged in the mounting groove, a pcb body is arranged on the upper end face of the mounting plate, and a welding component is arranged on the upper end face of the pcb body. Clamping assemblies are arranged on the two sides of the pcb body, a vertical first threaded groove is formed in the bottom end of the bearing plate, a first threaded rod penetrating through the first threaded groove in a screwed mode is arranged in the first threaded groove, and the top end of the first threaded rod is connected with the lower end face of the mounting plate through a bearing. The first threaded rod enables the mounting plate to move downwards, the pcb body enters the mounting groove, the mounting plate shields splashes generated during welding, after welding is completed, the first threaded rod drives the pcb body to protrude out of the mounting groove, and the pcb body can be taken down and mounted conveniently.