9755 results about "Butt joint" patented technology

The invention discloses a robot welding pipeline flange displacement special clamp, and relates to the technical field of ship manufacturing equipment, the clamp comprises a processing table, a welding mechanical arm, a placing mechanism, two groups of pipeline clamping mechanisms, two groups of flange fixing mechanisms, a traction mechanism, a rotating platform and three screw rod sliding tables; the placing mechanism is slidably mounted in the middle of the machining table through the rotating platform, and the two pipeline clamping mechanisms are symmetrically slidably mounted on the two sides of the placing mechanism and can synchronously move and clamp pipelines. The two flange fixing mechanisms are symmetrically arranged on the two sides of the containing mechanism and horizontally move through a lead screw sliding table. The traction mechanism is connected with the machining table through a lead screw sliding table and can lock / unlock the rotating platform and drive the containing mechanism to move. The welding mechanical arm is in linkage with the clamp and can conduct welding along the butt joint axis. Multi-degree-of-freedom posture adjustment of a pipeline and a flange can be achieved, a straight pipe and a 0-90-degree bent pipe are matched, it is guaranteed that welding is in a horizontal butt joint state all the time, and the welding quality and efficiency are improved.

The invention discloses a spacer for separating adjacent bare conductors, and belongs to the technical field of spacer installation, the spacer comprises a spacer and locking mechanisms installed at two ends of the spacer and used for respectively locking the adjacent bare conductors, each locking mechanism comprises a fixed clamp and a movable clamp, a lead-in port is formed between the fixed clamp and the movable clamp, and the lead-in port is communicated with the fixed clamp and the movable clamp. The top of the fixed clamp is a base, the movable clamp is movably arranged on one side of the base, the movable clamp has a rotating stroke and a horizontal sliding stroke relative to the fixed clamp, and the movable clamp has a horizontal state perpendicular to the fixed clamp and a vertical state aligned with the fixed clamp in the rotating stroke; a screw rod is rotationally arranged on the fixed clamp, a screw hole is formed in the movable clamp, when the movable clamp rotates downwards from a horizontal state to a vertical state, the screw hole is in butt joint with the screw rod, and the screw rod is driven by a driving mechanism to rotate so as to be in threaded fit with the screw hole; and the movable clamp performs a horizontal sliding stroke so as to be close to the fixed clamp to clamp the bare conductor.

The invention relates to the technical field of furnace shell welding, in particular to a gas industrial furnace shell welding device which integrates a radial circular seam and an axial longitudinal seam, a servo motor drives a planetary gear train through an intermittent sheave, a rotating shell drives a clamped furnace shell to rotate, and radial welding is completed; after a bottom clamping jaw instantly locks a shell, power is switched to a planet carrier, an outer mounting arm drives a driven scraping arm to grind the inner wall while axially moving, welding and grinding synchronization is achieved, a bidirectional pushing seat crank sliding block mechanism continuously rotates in a one-way mode to push and pull the furnace shell in a two-way mode, whole-circle accurate grinding is achieved during resetting, and six sets of air cylinder lead screw adjustable clamping jaws conduct internal and external synchronous supporting. The outer supporting cylinder is prevented from deformation, secondary clamping is not needed in the whole process, butt joint of multiple sections of furnace shells is completed at a time, continuous filling of a longitudinal weld bead can be completed when a circular seam is still in a high-temperature plastic stage through instantaneous switching of clamping and stopping, and the welding quality of a T-shaped connector area is improved.

The invention relates to the technical field of nuclear fusion devices, and discloses a fusion device cooling pipe welding method and welding device.The fusion device cooling pipe welding method comprises the following steps that two cooling pipes to be welded are prepared; an adapter is welded to the welding face of one cooling pipe, and the nickel content of the adapter is higher than that of the cooling pipe; the radial interior of the adapter and the to-be-welded face of the adapter are polished; the two cooling pipes are assembled, so that the welding face of the other cooling pipe is in butt joint with the to-be-welded face of the adapter; and carrying out self-fusion welding on the adapter and the other cooling pipe. According to the welding method for the cooling pipe of the fusion device, the problem that the magnetic conductivity of the cooling pipe exceeds the standard is solved, and meanwhile the welding quality and the welding qualification rate of the cooling pipe are improved.

The utility model discloses automatic punching and receiving equipment for multi-cavity injection products, which comprises a rack, a first carrier transferring mechanism, a manipulator clamp, a runner cutting machine, a transfer carrying module, a second carrier transferring mechanism, a water gap cutting machine, a blanking carrying module and a material distribution box mechanism, wherein the first carrier transferring mechanism, the manipulator clamp, the runner cutting machine, the transfer carrying module, the second carrier transferring mechanism, the water gap cutting machine, the blanking carrying module and the material distribution box mechanism are mounted on the rack; a manipulator clamp is arranged above the input end of the first carrier transferring mechanism in a butt joint mode, a runner cutting machine is further arranged above the first carrier transferring mechanism in a butt joint mode, and the transfer carrying module carries products on the first carrier transferring mechanism after runner cutting to the second carrier transferring mechanism. A water gap cutting machine is arranged above and below the second carrying seat transferring mechanism in a butt joint mode, and a discharging carrying module and a material distribution box mechanism are arranged at the output end of the second carrying seat transferring mechanism in a butt joint mode. By means of the mode, the injection molding runner and the injection molding water gap are sequentially cut twice, hot cutting of the water gap is achieved, cutting precision and notch flatness are guaranteed, product quality is guaranteed, and products are packaged in cavities.

The invention relates to an automatic drill rod loading and unloading mechanism and method, and the automatic drill rod loading and unloading mechanism comprises a crawler-type moving frame, a mast, a drill rod separating and storing mechanism, a drill rod clamping and conveying mechanism, a drill rod butt joint auxiliary guiding and locking mechanism and a controller, the mast is hinged to the right side of the crawler-type moving frame, and a drill rod hydraulic clamping device is arranged at the bottom of the mast; a power head capable of moving up and down is arranged on the mast, a lengthened main shaft is arranged on the power head, the drill rod separating and storing mechanism comprises a drill rod storing mechanism and a drill rod separating and conveying mechanism, the drill rod clamping and conveying mechanism comprises a swing driving mechanism, a swing arm and a drill rod clamping assembly, and the drill rod butt joint auxiliary guiding and locking mechanism is arranged on the power head. By means of the mechanism, automatic loading and disassembling of the drill rod can be achieved, the loading and disassembling efficiency of the drill rod can be greatly improved, meanwhile, the labor intensity of manual operation and the safety risk can be reduced, and therefore the drilling efficiency can be improved.

The invention relates to the technical field of pipeline splicing and welding, and discloses a rapid splicing and welding device for a large pipeline in a narrow space, which comprises a base, a butt joint assembly is arranged on the upper part of the base, a lower hoop plate is arranged on the outer surface of the butt joint assembly, and an upper hoop plate is arranged on the upper part of the lower hoop plate; an automatic electric arc welding mechanism is arranged in the driving assembly, the butt joint assembly comprises a support fixedly connected to the upper surface of the base, a lead screw is slidably inserted into the middle of the support in a penetrating mode, and the end of the lead screw is fixedly connected with the side edge of the lower hoop plate. The pipeline is locked through splicing of the upper hoop plate and the lower hoop plate, bidirectional extrusion force is generated through cooperation of the inclined butt joint groove and the butt joint block, the pipeline is synchronously held by the upper hoop plate and the lower hoop plate, after the ends of the hoop plates are aligned, the pipeline is accurately arranged in the circular hoop in a sleeved mode, misalignment caused by gravity sagging is effectively eliminated, concentric alignment of the welding ends is rapidly completed, and the welding efficiency is improved. And the assembly precision and efficiency are improved.

The present application relates to steel cage welding processing equipment technical field, and particularly to a kind of steel cage welding equipment, comprising: welding frame, support frame of support longitudinal reinforcement, traction frame of traction longitudinal reinforcement are sequentially arranged on welding frame;Longitudinal reinforcement is installed on the installation mechanism of support frame;Longitudinal reinforcement on support frame is pushed to the pushing mechanism on traction frame;The support frame is composed of mounting frame, rotating disc;The mounting frame is fixedly connected with the welding frame;Rotating disc is rotatably installed on the mounting frame;A kind of steel cage welding equipment of the present application is replaced by setting installation mechanism, artificial longitudinal reinforcement perforation work, to reduce the problem that horizontal muscle slips and causes worker injury, reduces welding efficiency;On the one hand, longitudinal reinforcement is translated to the butt joint of traction frame along axial direction;On the other hand, longitudinal reinforcement is supported, to prevent longitudinal reinforcement from causing outward bending force on the clamping block and the block on support frame when passing through support frame.

The invention discloses an automatic guider assembly line and an automatic guider assembly method, and relates to the field of manufacturing of automobile shock absorbers, and the automatic guider assembly line is characterized by comprising a first material machine and a second material machine which are separated from each other, and a butt joint conveying belt for connecting the first material machine and the second material machine. The first material machine is provided with an assembly rotating disc used for sequentially stacking parts such as an oil scraper ring and a valve block to form a small assembly, and a small assembly detection station and a small assembly NG discharging station are arranged before the small assembly is installed into a guider bare part. And the second material machine is used for performing bushing press fitting and final detection on the semi-finished products conveyed from the first material machine. Precise assembly and high-force press-fitting procedures are separated, so that the problem of process interference is effectively solved, and the assembly stability and the product quality are improved; meanwhile, the middle quality doors are arranged on the sub-assembly levels, so that unqualified products can be removed in advance, the cost superposition type waste is fundamentally avoided, and the production efficiency and the economic benefits are remarkably improved.

The invention discloses an edge member reinforcing steel bar staggered connection full-prefabricated shear wall structure system and a construction method thereof, the upper area of an edge member and a middle wallboard form an integrated prefabricated structure to form a prefabricated part of the edge member, and a cast-in-place cavity with a trapezoidal section is reserved in the lower area of the edge member; the compactness of concrete in a cast-in-place cavity can be effectively improved, so that the connecting strength of two adjacent layers of prefabricated shear walls is improved, meanwhile, a connecting beam joint groove is reserved in the top of the edge component, and a connecting beam can be erected in the connecting beam joint groove, so that the in-place precision and the construction efficiency of the connecting beam are improved, and the construction cost is reduced. The butt joint structures of the prefabricated shear walls on the same layer are rapidly connected with the embedded parts at the side ends of the prefabricated wall bodies, effective connection of the wall bodies on the same layer is achieved, all components are prefabricated, on-site wet construction is reduced to the maximum extent, full-prefabricated building of the shear wall structure is formed, and the construction efficiency and quality are improved.

The utility model discloses sheet metal part butt-joint clamping machining equipment, and particularly relates to the technical field of sheet metal part butt-joint machining, which comprises a working table, a support frame is fixedly connected to the top of the working table, a sliding block is arranged at the bottom of the support frame, a welding device is arranged at the bottom of the sliding block, and a first threaded rod is inserted in the middle of the sliding block. The first threaded rod is arranged in the middle of the supporting frame, a limiting sliding groove is formed in the top of the workbench, and two limiting sliding plates are arranged in the middle of the limiting sliding groove. The sheet metal part is clamped and fixed to the top of the supporting plate through the arranged clamping mechanism, the two limiting sliding plates are controlled to drive the supporting plate and the top sheet metal part to move towards the opposite sides, butt joint use and mechanical butt joint can be facilitated, the butt joint accuracy can be guaranteed, and the butt joint efficiency is improved. And the electric push rod is started to control the supporting plate to obliquely rotate, the inclination angle of the butted sheet metal parts can be adjusted, and the using effect is improved.

The present application relates to the technical fields of welding device, and discloses a kind of steel pipe tower component automatic assembly welding device and welding method thereof, comprising: V-shaped base, the V-shaped base is used to place the tower barrel to be welded;Two limiting mechanisms, two The limiting mechanism is symmetrically installed at the top of V-shaped base, for clamping and limiting the tower barrel to be welded;Pushing mechanism, the pushing mechanism is installed at one end of V-shaped base, for pushing tower barrel moves in V-shaped base;Welding mechanism, the welding mechanism is installed on V-shaped base, and located between two limiting mechanisms setting, for the butt joint between two tower barrels is welded around welding head swings back and forth, so that welding head swings and welds the butt joint of tower barrel, increase the welding width at butt joint, so as to increase the welding firmness of butt joint of tower barrel, improve the welding quality of tower barrel.

The invention relates to the field of bone ash storage rack machining, in particular to a cutting device for bone ash storage rack machining. The invention provides a bone ash storage rack processing and cutting device which comprises a workbench, the workbench is fixedly connected with a supporting frame, the supporting frame is provided with a first electric push rod, the telescopic end of the first electric push rod is fixedly connected with a pressing block, the pressing block vertically slides on the supporting frame, the workbench is rotationally connected with a lead screw, and the lead screw is fixedly connected with the supporting frame. A servo motor is installed on the workbench, an output shaft of the servo motor is fixedly connected with a lead screw through a coupler, a guide frame is fixedly connected to the workbench, and the guide frame and the lead screw are arranged on the workbench side by side. By means of automatic tool changing, online grinding, precise limiting and rotary linkage, the problems that saw blades are fast in abrasion, complex to replace and poor in precision are solved; shutdown is reduced through automatic tool changing, and accurate butt joint is guaranteed through balance weight; the service life of the saw blade is prolonged through online grinding, grinding precision is guaranteed through a limiting and rotating mechanism, production efficiency and notch quality are improved, and the high requirement for bone ash storage rack machining is met.

The utility model relates to a bus connector. The technical problem to be solved by the utility model is to provide a bus connector. According to the technical scheme, the electric connector comprises an insulating base, a metal outer connector and a tulip contact, the insulating base comprises an insulating base bottom and a conical boss, the insulating base is provided with an insulating base inner cavity and an insulating base butt joint hole, the metal outer connector comprises an inner contact part, an outer connector body and an outer contact part, the outer contact part is provided with an outer contact part connecting hole, and the tulip contact is connected with the inner contact part through the outer contact part connecting hole. The outer joint body is provided with an outer joint fastening boss, the outer joint fastening boss is provided with an outer joint fastening hole, and the insulating seat inner cavity is provided with an insulating seat inner surrounding edge and an inner cavity limiting groove outside the insulating seat butt joint hole. The utility model has the advantages that the metal outer joint and the insulating seat adopt a bidirectional connection structure designed transversely and longitudinally, so that the connection has a locking function, multiple guarantees are provided, and the metal outer joint is effectively prevented from loosening or shifting due to vibration or frequent plugging and unplugging.

The invention relates to the technical field of pipe truss tubular joint welding quality control, in particular to an assembly type pipe truss tubular joint butt-joint tensioning anti-deformation welding method and system which comprises the following steps that S1, an intersecting line is divided in the circumferential direction, and butt-joint references and deformation monitoring point positions of all partitions are calibrated; s2, circumferential distributed tensioning force application point positions are set; s3, a differential pre-tightening force gradient in the circumferential direction of the intersecting line is set, and pre-tensioning force is applied; s4, synchronous cooperation of tensioning actions and deformation control of all the to-be-welded nodes is carried out; s5, welding is conducted in a partitioned and segmented mode, and the pre-tensioning force of the partition corresponding to the intersecting line is dynamically adjusted in the welding process; and S6, after welding, the pre-tensioning force of each subarea is released, and node deformation checking and precision correction are synchronously completed after force release. According to the dynamic pre-tightening force adjusting method for partition differentiation pre-tightening force gradient distribution and welding thermal cycle time sequence matching, the residual stress peak value of the node core area is greatly reduced, and the welding quality and the structural safety of the tubular node are remarkably improved.

The utility model relates to the technical field of circuit breaker structures, in particular to a rotating shaft structure of a double-breakpoint molded case circuit breaker, which is characterized in that a rotating shaft main body is of an integral structure design, a contact groove is formed in the rotating shaft main body along the radial direction, the middle part of a moving contact is inserted into the contact groove, and two ends of the moving contact penetrate out along an opening of the contact groove; the static spring shaft and the moving spring shaft are used for being in butt joint with the static contact, the static spring shaft and the moving spring shaft are located on the two sides of the moving contact respectively, the two ends of the contact spring are connected to the static spring shaft and the moving spring shaft respectively, and the moving spring shaft is pulled through elastic tension of the contact spring so that the two sides of the moving contact can abut against the inner side wall of the contact groove respectively. Due to the integral structure design of the rotating shaft main body, the three-phase synchronism of the molded case circuit breaker is consistent, the limit breaking capacity and the operation breaking capacity of the circuit breaker are greatly improved, the safety and the reliability of the circuit breaker in operation are improved, and the electrical life of the circuit breaker is prolonged.

The invention discloses a glass limit cold bending electric loading device and a loading test method, and relates to the technical field of glass cold bending test.The glass limit cold bending electric loading device comprises a welding seat body and an extension loading device, a nut lifting type lifter is arranged in the lower end of the welding seat body, the front side of the nut lifting type lifter is connected with a supporting plate, and the left and right positions of the rear end of the supporting plate are connected with linear rails; a lead screw motor is arranged at the top of the welding seat body and connected with a lead screw, a pressure sensor is arranged at the bottom of the lead screw, the lower end of the pressure sensor is in threaded butt joint with a spherical hinge, and the bottom of the spherical hinge is connected with a loading pressure head; the extension loading device is introduced and matched with the loading pressure head to form a multi-loading-point structure, so that the cold bending loading test is more stable, and meanwhile, the position of an auxiliary loading point and the size of the auxiliary loading point can be flexibly adjusted through the combination of the adjusting assembly and the extension assembly, so that the cold bending loading test of the glass plate is more efficient and more stable.

The invention discloses a circular wooden column-hole-hidden graphite hardwood-graphite layer-along-column foundation stone seismic isolation system which is mainly used for seismic isolation and self-resetting of the bottom of a wooden structure circular wooden column. The shock insulation system is composed of a round wooden column, hole-hidden graphite hardwood, concave spherical surface belt limiting edge column foundation stone, a graphite layer and an annular tempered glass sealing plate. The hole-hidden graphite hardwood is composed of a convex spherical section, a thick cylindrical section, a graphite-hidden hole and a thin cylindrical connecting key which are integrally processed, and the thin cylindrical connecting key is inserted into the round hole in the bottom of the round wooden column to achieve positioning butt joint. The graphite layer can reduce the friction force between the convex spherical surface of the hole-hidden graphite hardwood and the concave spherical surface of the column foundation stone. The concave spherical surface of the column foundation stone enables the round wooden column to reset automatically after an earthquake, and the limiting edge of the column foundation stone can limit excessive displacement of the bottom of the round wooden column in the vibration process. And the annular toughened glass sealing plate can be sealed and waterproof. The seismic isolation system has the advantages of reducing the seismic action of an upper structure through bottom seismic isolation of the circular wooden columns and achieving structural toughness seismic resistance through self-resetting after an earthquake.

The invention provides a butt joint device based on electromagnetic connection and an underwater navigation device, and relates to the technical field of underwater vehicles, the butt joint device comprises a first butt joint assembly and a second butt joint assembly, the first butt joint assembly comprises a first nut and a magnetic driving part arranged on the first nut in a sleeving mode, the second butt joint assembly comprises a telescopic rod, a connecting rod, a second nut and a magnetic response part, one end of the connecting rod is connected with the telescopic end of the telescopic rod, the other end is in threaded connection with the second nut, and the magnetic response part sleeves the periphery of the second nut. The magnetic driving part is used for attracting the magnetic response part to preliminarily butt the first butt joint assembly and the second butt joint assembly, the fixed end of the telescopic rod is driven to rotate to drive the connecting rod to rotate, and the connecting rod rotates and moves in the axial direction of the second nut to be in threaded connection with the inner wall of the first nut so as to secondarily butt the first butt joint assembly and the second butt joint assembly. Radial and axial wandering is eliminated, the stability and anti-disturbance capability after butt joint are enhanced, and the overall operation quality and efficiency are improved.

The utility model discloses a container lifting appliance for a container ship. The container lifting appliance comprises a lifting appliance body, a guide frame and a driving mechanism, guide frames are installed on the front side, the rear side, the left end and the right end of the lifting tool body, each guide frame comprises a telescopic rod penetrating through the edge of the lifting tool body, one end of each telescopic rod is fixedly connected through a movable plate, a guide rod is fixed to the other end of each telescopic rod, and an inclined face is arranged at the lower end of each guide rod so as to make contact with a container in advance and guide the container in the descending process of the lifting tool. The driving mechanism comprises a motor fixed to the outer side of the lifting appliance body, an output shaft of the motor is connected with a lead screw, the lead screw penetrates through a threaded hole of the movable plate and is connected with a check block, and the motor drives the lead screw to rotate so as to drive the guide frame to conduct telescopic adjustment, so that the lifting appliance can be accurately in butt joint with the container in the shaking state. The lifting appliance butt joint error is reduced through the adjusting function of the guide frame, and the operation stability is improved.

The invention provides a composite pile foundation structure for road surface rigidity optimization of a road transition section and a design and use method of the composite pile foundation structure, and relates to the technical field of composite pile foundations. The composite pile foundation structure can be applied to an embankment foundation and a bridge abutment pile foundation and comprises a bearing platform, a pile cap, a gasket, an elastic composite plate, replaceable filler, a pile and a pile end self-adaptive deformer. The design and use method of the bridge abutment pile foundation is guided by the load settlement characteristic of the butted roadbed, and the design and use method of the embankment composite pile foundation is guided by the settlement control standard. Design variables comprise the pile length, the pile diameter, the pile number, the compression thickness of the elastic composite plate, the arrangement depth of the replaceable filler, the limit pile side friction resistance of the replaceable filler and the compression modulus of the replaceable material, the structure can optimize the overall rigidity of the road surface on one side of the abutment, the phenomenon of bump of the abutment is effectively avoided, zero-differential settlement is achieved theoretically, and the construction efficiency is improved. And the settlement index can be controlled in the application of an embankment foundation.

The invention discloses automatic welding forming equipment and technology for automobile parts, and relates to the technical field of automobile part machining devices.The automatic welding forming equipment comprises a welding table, two sets of clamping mechanisms, a welding mechanism and a cleaning mechanism, the two sets of clamping mechanisms are symmetrically arranged at the top of the welding table, and each clamping mechanism comprises a rotating frame, a movable sliding frame and a clamping assembly; the rotating frame is rotatably and cooperatively connected with the welding table, the movable sliding frame is slidably and cooperatively connected with the rotating frame in the horizontal direction, the clamping assembly is arranged at the top of the movable sliding frame, the welding mechanism comprises a supporting frame, a movable sliding table, a rotating ring and a welding assembly, and the cleaning mechanism comprises a collecting box, a fan and a rotating disc. The two clamping mechanisms are symmetrically designed to be matched with the rotating function of the rotating frame and the horizontal adjusting function of the movable sliding frame, accurate butt joint of the two parts to be welded can be guaranteed, the welding requirements of the parts with different angles and different specifications can be flexibly met, and deviation caused by manual positioning is effectively avoided.

The invention relates to the field of mechanical engineering, discloses a quick-connection welding control method and system for aluminum alloy pipe fittings, and aims to solve the problems that in the prior art, heat input control is not accurate, the positioning and centering efficiency is low, parameter adjustment lacks self-adaptability, and the multivariable cooperative control capacity is insufficient. The method comprises the following steps: acquiring point cloud data of the end surface of a pipe fitting through three-dimensional scanning, and calculating a six-degree-of-freedom butt joint deviation by adopting an improved iterative nearest point algorithm; a compensation track is generated based on multi-objective optimization, and the six-degree-of-freedom parallel robot is driven to achieve fine adjustment; and after the butt joint deviation is stable, welding is started according to a sectional type current increasing strategy, and the wire feeding and welding speed is dynamically adjusted in combination with fusion depth feedback and visual detection. According to the scheme, high-precision automatic butt joint, stable molten pool control and online defect closed-loop treatment are achieved, the welding quality consistency and the production efficiency are remarkably improved, and the method is suitable for efficient and high-quality connection of various aluminum alloy pipe fittings.

The horizontal stretch bending machine comprises a stretch bending machine table, swing arm structures and a vertical arm frame, the rear side of the stretch bending machine table is provided with a rear machine table, the upper end face of the stretch bending machine table is provided with a mold containing table, the two sides of the stretch bending machine table are each provided with a swing arm structure, and the vertical arm frame is provided with a plug core. The middle of the rear side of the swing arm structure is provided with an inner notch, a vertical butt joint shaft is installed in the inner notch, a pushing oil cylinder is installed between the rear end of the upper end face of the rear machine table and the butt joint shaft, and a vertical arm frame is installed on the swing arm structure in a sliding mode. An ejection arm mounting frame is mounted in the vertical arm frame, and an ejection arm structure is mounted in the ejection arm mounting frame in a sliding manner. The device has the characteristics of high ejection action speed, low energy consumption, great improvement of the production efficiency of equipment, simplification of the overall structure of the equipment, improvement of the operation smoothness of the stretch bender and the like.

The application belongs to the technical field of welding, and particularly relates to a pipe welding device for butt welding of self-positioning pipes. The following scheme is proposed and comprises a welding table, a butt joint mechanism, two top fixing mechanisms and a welding mechanism. The butt joint mechanism is fixed on the welding table, the two top fixing mechanisms are arranged on the two sides of the butt joint mechanism, the welding mechanism is fixed on the top of the welding table, and the top of the welding table is provided with a side edge fixing mechanism. The side edge fixing mechanism comprises a transmission assembly, a support frame, a rotary table, a guide rod, a push plate, a support plate, a side edge support seat and a side edge butt joint plate. One end of the support frame is fixed on the side edge of the butt joint mechanism, and the rotary table is rotationally connected in the support frame. The application can effectively improve the butt joint effect of the pipes, so as to facilitate the welding of the two pipes, prevent the misalignment of the two pipes during butt joint due to the poor fixing effect of the pipes, and thus affect the welding of the pipes.

The invention relates to the technical field of push-pull type hangar gates, in particular to a push-pull type hangar gate and a gate mounting construction method.The push-pull type hangar gate comprises an upper mounting frame and a lower mounting frame, and a set of movable door plates, a set of limiting door plates and a plurality of sets of splicing door plates are slidably mounted in the upper mounting frame and the lower mounting frame; the two sides of each splicing door plate can be in butt joint with the corresponding movable door plate and the corresponding limiting door plate, a driving part is installed at the front end of the lower installation frame and can push the corresponding movable door plate to move, the two splicing door plates can be automatically spliced, and the two splicing door plates can be manually disassembled to be opened. The driving part and the movable door plate can be quickly mounted, so that the sliding door can be conveniently and electrically pushed, the labor burden is reduced, the pushing efficiency is improved, any two groups of spliced door plates can be conveniently opened, entrances of different sizes can be conveniently opened in a hangar, and convenience, rapidness and time saving are achieved.

The invention discloses a rapid butt-joint positioning method for a hyperbolic arc-shaped steel beam, belongs to the technical field of steel structure building construction, and mainly aims to solve the problems of high butt-joint positioning difficulty, low precision, poor efficiency and high safety risk of the hyperbolic arc-shaped steel beam in high-altitude assembly installation. The temporary connecting plate with the spherical hinge joint and the annular positioning boss and the temporary connecting base with the spherical hinge nest and the annular positioning groove are welded to the end of the steel beam, a measuring instrument is used for obtaining the coordinate of the mark point and fitting deviation, and the steel beam is controlled to descend stably through synchronous hoisting, active swing restraining, adjustable supporting and a real-time monitoring system. And after preset position deviation and weight transfer rate threshold values are reached, the horizontal position is finely adjusted, so that the spherical hinge head sinks into the spherical hinge nest, the annular positioning boss is embedded into the annular positioning groove, and finally fastening is completed by adopting a conical centering pin rod and a bolt. By means of the method, high-precision, high-efficiency, safe and reliable butt joint of the hyperbolic arc-shaped steel beams is achieved.

The invention discloses a miniaturized and light direct insertion type waterproof connector which comprises a plug and a square plate socket. The plug comprises a housing, a coupling nut, a spring, a steel ball, a stop ring, a snap spring, a crimping jack assembly and a bonding jack insulator assembly. The connecting nut and the shell are limited through the steel ball, the spring can be compressed by pressing the connecting nut, limiting of the steel ball is relieved, and rapid butt joint and locking of the plug and the socket are achieved. An F-shaped stop groove is formed in the shell and matched with the stop ring, and the spring can be prevented from resetting during pre-installation. The housing is provided with a three-key position, and the three-key position is matched with the three-key groove of the socket to prevent misplug. Through an innovative locking and mistake proofing structure and in combination with compact hole position arrangement, miniaturization and light weight of the connector are realized on the premise of ensuring an IP67 waterproof grade and reliable connection, and compared with a traditional J599 series connector, more contact bodies can be accommodated under the same shell size.

The invention discloses integrated electronic brake system PCBA program burning and detecting equipment which comprises a whole machine frame and a burning and testing mechanism, and a burning and testing machine base and a burning and testing upper tool are arranged on the lower portion in the frame of the burning and testing mechanism. A clamping block is slidably arranged at the upper end opening of a butt joint through hole in the burning test upper tool, a hydraulic fluid channel is annularly distributed, and the upper end opening is in linkage with the clamping block through a sleeve spring piston. A reciprocating lead screw in a lead screw box on the rear side is connected with a plate unloading motor and a grabbing clamp through a driving seat, path sliding blocks on the two sides of the grabbing clamp are matched with a downward pressing sliding way on the surface of an upper tool to achieve lifting, the lower portion of the lead screw box is communicated with a liquid pipe through a spring piston, and a toothed plate in a burning frame is meshed with a driving gear; pCBA automatic feeding, discharging, overturning and discharging are achieved through linkage of a grabbing clamp and a transmission mechanism, and the productivity is improved through synchronous operation of a front station and a rear station; the clamping blocks are hydraulically driven to form annular flexible support for the test probe, the posture of the probe is self-adaptively corrected through the arc-shaped clamping blocks, and probe inclination caused by PCBA positioning deviation is avoided.

The invention discloses a pipe fitting positioning and welding device with a surrounding structure, and relates to the technical field of welding, the pipe fitting positioning and welding device comprises a supporting seat, side supporting frames are fixedly mounted at the two ends of the top of the supporting seat, and active clamping mechanisms are mounted in the side supporting frames to position and fix pipe fittings; a supporting seat is installed on the top face of the side supporting frame, a surrounding welding mechanism is installed in the middle of the top face of the supporting seat and used for conducting surrounding type welding on pipe fittings, telescopic plates are installed on the front side and the rear side of the side supporting frame, and the inner ends of the telescopic plates are connected with edge grinding mechanisms. The problems of shaking deviation, low adaptability, untight butt joint, insufficient welding strength and the like which are prone to occurring in the pipe fitting welding process are cooperatively solved, the pipe fitting positioning stability and the structural adaptability are improved, the welding quality is comprehensively guaranteed through the links of pretreatment, precise welding, auxiliary cleaning and the like, energy consumption is reduced, and the operation efficiency is improved.