280results about How to "Fast welding speed" patented technology

The invention belongs to the technical field of welding, and discloses an L-shaped laser-MIG hybrid welding device for a narrow space, and the L-shaped laser-MIG hybrid welding device for the narrow space comprises a welding gun assembly, a laser welding head assembly and a space adjusting assembly. The laser and the electric arc are combined, a laser and electric arc composite heat source is obtained, and the advantages of laser and electric arc composite welding are fully exerted; laser-MIG hybrid welding has the advantages of being high in welding speed, low in heat input, large in equipment clearance tolerance degree and high in welding quality. A welding gun wire feeding route is optimized, the precision of a wire guide assembly is improved, the straightness of a welding wire is guaranteed by combining a three-wheel straightener, and the purpose of stable wire feeding is achieved. The overall connecting piece structure is simplified, the reflecting copper mirror integrating reflection, collimation and focusing is designed, the overall size space is saved, the overall load is reduced, and more functions can be added compared with equipment of the same type under the condition that the load is limited.

The invention discloses a stainless steel laser welding parameter optimization method based on a dynamic annular scanning path. The stainless steel laser welding parameter optimization method comprises the steps that S1, welding parameter setting is initialized to be suitable for controlling welding heat distribution; s2, measuring the material thickness of the welding area of the stainless steel workpiece before welding; s3, the scanning path layer number and the progressive speed are determined according to the welding parameters; s4, the welding control system adjusts welding parameters according to the temperature monitoring data; s5, the laser welding control system adjusts the layer number, the progressive speed and the scanning path radius of the dynamic annular scanning path in real time; s6, the scanning amplitude, the scanning frequency and the welding speed are optimized in real time; and S7, after welding is completed, quality detection is conducted on a welding seam, and detection data are compared with a preset welding quality standard. According to the method, accurate control over welding heat input, remarkable improvement of the welding seam quality and comprehensive optimization of the welding efficiency are achieved.

The invention provides a welding device for ship repair, and belongs to the technical field of welding. Comprising a base, a supporting plate is fixedly arranged on the surface of the base, a sliding plate is arranged on the inner wall of the supporting plate in a sliding mode, a welding gun for welding the ship welding position is installed on the surface of the sliding plate, and a cleaning part for cleaning welding slag generated during welding of the welding gun is installed on the surface of the sliding plate; by arranging the cleaning part, welding can be carried out while the whole equipment is moved, welding slag generated by welding at the welding position can be adsorbed during welding, splashing of the welding slag is prevented, a pipeline can be knocked through cooperative work of a motor, a rotating rod, a round wheel, a connecting rod, a sliding block, a downward pressing rod, a torsion spring, a rotating strip, a spring hammer and other components, and therefore the pipeline can be conveniently welded. Welding slag in the pipeline is knocked off due to vibration and sucked away by the fan, cleaning of the welding slag adsorbed to the inner wall of the pipeline is achieved, smoothness of the pipeline is guaranteed, and attachment of the welding slag to the inner wall of the pipeline is effectively reduced.

The invention relates to the technical field of clock dial plate welding, and discloses a clock dial plate welding device which comprises a welding seat, a rotating shaft is rotationally connected to the welding seat, a clamping seat is fixed to the upper end of the rotating shaft, and a dial plate body is placed in the clamping seat; a plurality of welding positioning holes which are circumferentially distributed at equal intervals are formed in the dial plate body, a plurality of clamping assemblies which are circumferentially distributed at equal intervals and used for fixing the dial plate body are arranged on the clamping seat, a first servo electric cylinder is arranged at one end of the welding seat, and a mounting plate is fixed to the upper end of the first servo electric cylinder; a welding gun is fixed on the mounting plate; in the whole welding process, the situation that the welding precision is affected due to position deviation in the welding process can be avoided, the positioning frequency can be reduced, the welding speed is increased, the time consumed by welding is greatly saved, time and labor are saved, convenience and rapidness are achieved, and the welding efficiency is improved.

The invention belongs to the technical field of air blower heating wire installing and welding, and particularly relates to a high-speed negative ion air blower heating wire installing and welding device and a method thereof.The high-speed negative ion air blower heating wire installing and welding device comprises a workbench, a conveying belt is installed on the workbench, a fixing frame is installed on the conveying belt, an air cylinder is installed on the workbench, and a pressing plate is installed on the air cylinder; a welding manipulator is further mounted on the workbench; the fixing frame comprises a mounting seat and a lifting seat, the mounting seat is fixedly mounted on the conveying belt, the lifting seat is hinged to the mounting seat, a jacking sliding groove is formed in the lifting seat, a jacking block is mounted on the workbench, and the jacking block is matched with the jacking sliding groove. A placing groove is formed in the lifting seat, and the surface of the placing groove is smooth; the device is simple in structure, the heating wire is fully fixed and positioned, it is guaranteed that the position and angle of the heating wire are accurate during welding, therefore, welding of the heating wire is facilitated, and the welding speed and welding quality of the heating wire are improved.

The invention relates to the technical field of welding equipment, and discloses a steel structure splicing, welding and manufacturing tool clamp which comprises a base, a trunk clamping mechanism and a rib clamping mechanism, the trunk clamping mechanism is used for positioning a steel structure trunk, and the rib clamping mechanism comprises a driving component, a placing component and a clamping component; and the driving part is connected with the placing part and the clamping part respectively. The rib clamping mechanism and the main body clamping mechanism are used in cooperation, the whole spliced steel structure can be positioned, and different from an existing clamp, the arranged rib clamping mechanism can drive the steel structure to turn over besides the function of clamping and fixing the ribs of the steel structure, so that the whole spliced steel structure can be clamped and fixed, and the whole spliced steel structure can be clamped and fixed. According to the welding device, the welding posture of the other side is automatically adjusted, manual overturning action is not needed, the clamping effect on the steel structure does not need to be contacted during overturning, the manual overturning mode is replaced, and tedious operation steps are simplified.

The invention provides a scanning electron beam-brazing composite welding method suitable for a closed cavity structure. The scanning electron beam-brazing composite welding method comprises the steps that S1, test welding is conducted; determining electron beam critical penetration welding parameters; determining scanning parameters of scanning electron beam critical penetration welding; determining scanning electron beam-brazing composite welding parameters; s2, welding seam machining and cleaning treatment; s3, brazing filler metal is selected and filled; s4, tool fixing and spot welding are carried out; s5, scanning electron beam-brazing composite welding is carried out; and the part fixed by the tool is placed in a vacuum chamber of an electron beam welding machine, then the part is welded through the electron beam welding and scanning parameters determined in the step S1 of test welding, and scanning electron beam-brazing composite welding of the part is achieved. The defect that in the electron beam welding process of the closed cavity structure, electron beams easily flow through large burns of metal opposite to a weld joint or are too small to cause non-welding is overcome, and therefore high-quality welding of the closed cavity structure is achieved.

The invention relates to the technical field of petroleum and natural gas development, and discloses a double-sheath mineral insulated heating cable and a preparation method and application thereof. The double-sheath mineral insulation heating cable sequentially comprises a core body, an insulation heat conduction layer, an inner sheath layer and an outer sheath layer from inside to outside. Wherein the yield strength of the inner sheath layer is greater than or equal to 205 MPa, the tensile strength is greater than or equal to 520 MPa, the ductility is greater than or equal to 35%, and the hardness is less than or equal to 32 HRC; the yield strength of the outer sheath layer is greater than or equal to 205 MPa, the tensile strength is greater than or equal to 520 MPa, the elongation is greater than or equal to 35%, and the hardness is less than or equal to 32 HRC; the thickness of the outer sheath layer is 30%-50% smaller than that of the inner sheath layer, the heat conductivity of the inner sheath layer is not larger than that of the outer sheath layer, and the heat conductivity of the inner sheath layer is not smaller than that of the insulating heat conduction layer. The double-sheath mineral insulation heating cable can be suitable for being applied to deep wells and ultra-deep wells of H2S, CO2 and Cl <->, the use temperature is 350-750 DEG C, and the service life is more than 3 years.

The utility model relates to an automatic hub welding device which comprises a laser welding machine, a multi-axis mechanical arm and a conveying mechanism arranged on one side of the multi-axis mechanical arm, and the movable end of the multi-axis mechanical arm is provided with an electromagnetic chuck used for adsorbing a spoke and a clamping tool used for taking and placing a rim through connecting pieces. A laser welding head of the laser welding machine is installed in the middle of the connecting piece, and a positioner used for positioning and supporting the rim is further arranged below the movable end of the multi-axis mechanical arm. The conveying mechanism comprises two rim conveying modules and a spoke conveying module which are arranged in parallel, each conveying module comprises a supporting frame and a linear module installed on the supporting frame, the moving end of each linear module is connected with a tray, and positioning pins used for positioning spokes or rims are arranged on the trays. According to the non-contact laser welding device for the hub, non-contact laser welding is carried out on the hub, the welding speed is high, a welding seam is attractive, high-stability laser cannot cause deformation to a product, manual secondary treatment is not needed after welding, and the production cost is low.

The invention discloses a steel bridge deck slab U rib laser arc hybrid welding method and device, and relates to the technical field of welding equipment.The device comprises a device body, positioning mechanisms and a smoke discharging mechanism, the device body is placed at the top of a rib plate, a steel plate is arranged at the bottom of the rib plate, and the positioning mechanisms are arranged at the two ends of the device body; the welding device comprises a device body and a positioning mechanism, the positioning mechanism is used for fixing the device body to the top of a rib plate, a welding mechanism is arranged at the top of the device body and used for welding the two sides of the rib plate and a steel plate, and an exhaust fan is arranged on one side of the welding mechanism. Accurate and stable welding positioning and fixing are achieved, according to the mechanism, the bevel gear system is driven by rotating the rotating disc, then the threaded rod and the connecting block are driven to move, clamping of the rib plate by the limiting wheel is achieved, and according to the design, welding accuracy and reliability are improved, and vibration and displacement in the welding process are reduced.

The invention discloses valve element suspension welding positioning equipment for an EGR (Exhaust Gas Recirculation) valve, and relates to the technical field of welding. According to the valve element suspension welding positioning equipment of the EGR valve, through the design of a composite mechanism, a valve element is placed on the inner side of the clamping mechanism, so that the clamping mechanism plays a role in clamping and fixing the valve element, deviation in the welding process is prevented, and the phenomena that welding points are misplaced in the welding process, the welding points are not attractive, and the welding effect is poor are avoided; the clamping range can be adjusted through the clamping mechanism, so that the application range of components is expanded, the applicability of equipment is improved, after the clamping mechanism is fixed, an electric push rod controls a butt joint mechanism to descend, the butt joint mechanism is in butt joint with the clamping mechanism to press the top of a valve element, and therefore the stability during welding is ensured; and the clamping mechanism is driven to rotate, so that uniform-speed welding is kept in the welding process, the welding quality is improved, and the welding speed and efficiency are improved.

The invention relates to the technical field of valves, in particular to a hydraulic check valve and a valve body welding device.The hydraulic check valve comprises a valve shell and connecting flanges welded to the two ends of the valve shell, a buckling groove is formed in the middle of the outer side of the valve shell, and a valve element is detachably installed in the buckling groove through a locking bolt; the valve element can be conveniently and independently taken out for replacement or maintenance in the subsequent operation and maintenance process; the valve body welding device comprises a base table and T-shaped grooves formed in the two ends of the top of the base table, sliding frames are slidably installed in the T-shaped grooves, clamping transposition mechanisms are installed at the top ends of the two sliding frames, inner U-shaped arc frames and outer U-shaped arc frames are arranged on the opposite sides of the two sliding frames, and double-side adjusting mechanisms are installed at the top ends of the two sliding frames. By means of the double-end inner and outer side synchronous welding device, double-end inner and outer side synchronous welding can be conducted on welding seams between a valve shell and connecting flanges at the two ends, and the welding speed is increased.

The soft plasma arc combined laser-MIG composite welding device comprises a mounting plate, a soft plasma arc welding gun, a laser welding gun head and an MIG welding gun are sequentially mounted on the mounting plate, and the soft plasma arc welding gun and the MIG welding gun can be horizontally, vertically and rotationally adjusted on the mounting plate; the soft plasma arc welding gun forms an upper end shielding gas channel, the upper end of the upper end shielding gas channel is connected with a shielding gas pipe connector, a lower end shielding gas channel, an annular shielding gas cavity and a round hole are formed in the gas nozzle, and the round hole vertically penetrates through the interior of the annular shielding gas cavity to the exterior of the gas nozzle. Compared with the prior art, through the synergistic effect of the soft plasma arc welding gun, the laser welding gun head and the MIG welding gun, the welding penetration depth is increased, the welding speed is increased, the occurrence of welding defects is reduced, and the welding quality is improved. And the welding quality and the welding efficiency are improved.

A device for welding a motor copper end ring comprises a main body, the main body defines a containing cavity, the containing cavity is provided with an upper opening, the upper opening is used for enabling one end of a motor rotor to be welded to stretch into the containing cavity, and the motor rotor to be welded comprises a copper end ring to be welded; the induction heating piece is arranged on the main body and is used for providing heat during welding of the to-be-welded copper end ring; the supporting piece is arranged in the containing cavity and used for supporting one end of the to-be-welded motor rotor, so that a distance is formed between the to-be-welded copper end ring and the induction heating piece; and the adjusting assembly is connected with the supporting piece and used for adjusting the height of the supporting piece so as to adjust the size of the distance. According to the device for welding the copper end ring of the motor, the distance between the copper end ring to be welded and the induction heating piece can be conveniently adjusted, so that a workpiece to be welded is uniformly heated, the melting speed of welding rods is consistent, the welding seam quality and the welding speed are improved, the operation difficulty is reduced, and the welding efficiency is improved.

The utility model provides a connector male seat, a connector female seat and a floating connector, and belongs to the technical field of connectors. The COB connector solves the problems that welding is difficult and the display effect is not ideal due to the fact that power signal pins and transmission signal pins of an existing COB connector are the same, the COB connector comprises a male seat body and a female seat body, two rows of contact pins are arranged on the male seat body, and the single row of contact pins on each side comprise contact pins of two power pins, contact pins of two grounding pins and contact pins of signal pins. The female seat body is provided with two rows of jacks, the single row of jacks at each side comprises jacks of two power supply pins, jacks of two grounding pins and jacks of signal pins, and the widths of the power supply pins and the grounding pins are greater than the width of the signal pins, so that the current bearing capacity of the floating connector is improved; the COB module is applied to the COB module.

The invention discloses automatic shaping and welding equipment for battery tabs. The automatic shaping and welding equipment comprises a feeding mechanism, a shaping and cutting mechanism and a welding mechanism, the conveying mechanism comprises a plurality of feeding mechanisms, each feeding mechanism comprises a first supporting plate and a lifting device, a carrying mechanism is arranged above the conveying belt, a steering device is arranged on the carrying mechanism, and a suction cup is arranged at the bottom of the steering device; the shaping and cutting-off mechanism comprises a workbench, a plurality of fixing devices are arranged on the workbench, a first shaping mechanism, a cutting-off mechanism and a second shaping mechanism are arranged on one sides of the fixing devices, the welding mechanism comprises a feeding device, and a rotating disc is arranged on one side of the feeding mechanism. A feeding position, a waiting position, a welding position and a discharging position are sequentially arranged on the rotating disc, a protection plate conveying assembly is arranged on one side of the waiting position and comprises a first bearing device and a clamping device, and welding assemblies are oppositely arranged on the welding position in the vertical direction.

The utility model discloses a wire filling device for improving the welding efficiency of a thermoformed steel tailor-welded blank, which relates to the technical field of laser welding and comprises a laser welding head, a wire heating assembly is arranged on the lower portion of the laser welding head and comprises a support fixedly connected to the outer surface of the lower portion of the laser welding head, and a wire filling device is arranged on the support. The end, away from the laser welding head, of the support is slidably connected with a sliding rod, the lower portion of the sliding rod is provided with an external thread, the external thread is in threaded connection with a threaded sleeve, the lower portion of the sliding rod is sleeved with a first spring, and a wire feeding pipe is inserted between the clamping plates. The laser welding head conducts laser irradiation melting on the preheated welding wire, so that the hot forming steel tailor-welded blank is welded through the welding wire, dependence of the welding wire on laser heat is reduced, the precision requirement for the relative position of the welding wire and laser is lowered, the filling efficiency and the welding seam plumpness are improved, and meanwhile the welding speed is increased.

The invention relates to the technical field of hybrid welding, in particular to a laser and TIG magnetic control hybrid welding process for a nickel-based alloy pipe production line, which comprises the following steps: pipe manufacturing, preparation, conveying and preheating, welding and cooling, equipment comprises a dust-free welding chamber and a welding pipe, a welding mechanism is arranged in the dust-free welding chamber, and the welding pipe is arranged in the dust-free welding chamber. The welding mechanism comprises a high-frequency pulse TIG welding gun and a laser transmitter, a magnetic field mechanism is arranged in the high-frequency pulse TIG welding gun, and a tungsten electrode end is arranged at the end, away from the adjusting frame, of the high-frequency pulse TIG welding gun. The method has the advantages that optical fiber laser welding is combined with the high-frequency pulse TIG arc and external alternating magnetic field technology, the welding speed is remarkably increased, rapid heating is achieved through optical fiber laser welding, the stirring and mixing effects of a molten pool are enhanced through adding of the high-frequency pulse TIG arc and the alternating magnetic field, the alternating magnetic field stirs the interior of the molten pool, grains are refined, and the overall performance of a welding seam is improved; therefore, thermal stress and deformation of weld metal are reduced, and welding efficiency and quality are improved.

The invention discloses an excavator dozer blade support welding device, and belongs to the technical field of dozer blade support welding machining. An excavator dozer blade support welding device comprises a base, two slidable moving frames are correspondingly arranged in the base, two arc-shaped frames are correspondingly and fixedly installed on the surface of the top end of any moving frame, the surfaces of the two arc-shaped frames are jointly and slidably connected with arc-shaped blocks matched with the arc-shaped frames, and a shovel plate is jointly placed on the surfaces of the two arc-shaped blocks. Two rotating grooves are correspondingly formed in the inner side face of any arc-shaped block, rotating blocks are rotationally connected into the rotating grooves, and clamping grooves used for fixing and limiting the shovel plates are formed in the end surfaces of the rotating blocks. Compared with a traditional welding process, the welding device for the dozer blade support of the excavator has the advantages that the stability in the welding process of the support body and the shovel plate is guaranteed, the welding precision of the contact part of the arc-shaped plate and the shovel plate is improved, the welding speed is increased, the welding quality is improved, and the labor intensity of workers is reduced.

The invention relates to the technical field of food packaging, and discloses a flour packaging bag based on single material compositing, which comprises a middle-sealed folding bag and an eight-edge-sealed folding packaging bag, and comprises a first bag body and a first bag side applied to the middle-sealed folding bag, one side edge of the bag body is connected end to end and then is sealed to form a middle sealing part, and the other side edge of the bag body is sealed to form an eight-edge-sealed folding packaging bag. The first bag body and one end face of the bag side are connected and then are subjected to edge sealing to form a transverse sealing part, the position, located on the transverse sealing part, of the first bag body is coated with an adhesive tape, and after middle sealing is completed, the middle sealing part is attached to the adhesive tape. By adopting the unstretched PE film composite design, the tensile strength, the heat sealing performance and the tear resistance of the packaging bag are remarkably improved, the heat sealing temperature is as low as 120 DEG C or below, and the bag breaking risk is reduced; the method is suitable for complex bag shape processing; through the environment-friendly solvent-free adhesive and the dry type compound technology, the production efficiency is improved, the cost is reduced, meanwhile, efficient recycling and environment-friendly performance are achieved, and the packaging requirement of heavy objects is met.

The high-speed MAG or MIG welding torch comprises a laser output end, an electric arc heat source consumable electrode welding torch, a two-dimensional adjusting mechanism and an included angle adjusting assembly, the two-dimensional adjusting mechanism is connected with the laser output end, and the relative position of the laser output end and the electric arc heat source consumable electrode welding torch is adjusted through the two-dimensional adjusting mechanism; the relative position of a welding wire pushed out of the arc heat source consumable electrode welding torch and a laser beam emitted by the laser output end is changed, the included angle adjusting assembly is connected with the arc heat source consumable electrode welding torch, and the included angle between the arc heat source consumable electrode welding torch and the laser output end is adjusted through the included angle adjusting assembly. By arranging the two-dimensional adjusting mechanism and the included angle adjusting assembly, the relative positions of the arc heat source consumable electrode welding torch and the laser output end in the space direction can be conveniently adjusted, the arc of the arc heat source consumable electrode welding torch and the laser beam are located at the optimal working distance and included angle, the welding speed and the welding quality can be improved, and high-speed welding is achieved.

The invention relates to the technical field of laser welding, in particular to a welding face shaping laser welding machine and a laser welding method.The equipment comprises a rack, the rack is provided with a shaping lifting base, a high-frequency collision shaping device, a laser emitter with a high-speed galvanometer and a welding pressing base, and the high-frequency collision shaping device is located above the shaping lifting base; according to the laser welding device, two welding parts are collided at high frequency, so that the welding surfaces of the workpieces are shaped, then laser welding is used for welding under a certain pressure, dust is not generated, and the laser welding device has the advantages of being simple in structure, convenient to operate and high in practicability. The laser welding device is not limited by the shape of a welding piece, the welding quality is good, laser is distributed at multiple points during high-frequency scanning during welding, accordingly, the multiple points are heated and welded at the same time, the overall welding speed is increased, the heating time of a single point is delayed, and the welding quality is improved.

The invention belongs to but not limited to the technical field of welding, and particularly relates to a laser-MIG composite welding device and method for a soft gun barrel. Comprising a sectional material, an optical fiber, an interface base, a QP interface, an optical fiber connector transition piece, a main body connecting block, a mounting connecting piece, a copper mirror base, a reflecting copper mirror, an adjustable bolt, a double-layer blocking mirror, a double-layer air knife, a welding wire, a welding gun head, an adjusting connecting block, an angle adjusting piece, an X-axis adjusting sliding block, a Y-axis adjusting sliding block, a steering connecting piece, a Z-axis adjusting sliding block, a soft gun barrel, a wire feeding device and a water and gas path connector. Provided is a welding gun connecting piece. According to the high-power laser-MIG hybrid welding equipment, pipelines are concentrated in the laser head and the welding gun, the problem that interference is prone to occurring in the welding process due to the fact that the pipelines are complex is solved, meanwhile, high-temperature-resistant and high-power optical elements are designed, and the design of the high-power laser-MIG hybrid welding equipment is achieved. The equipment can realize efficient and high-quality welding in a narrow space.

The invention discloses a capacitor lifting piece robot cooperative welding system and method. The system comprises an automatic box shell carrying robot, an automatic lifting piece welding device, an automatic box shell positioning and overturning device and an automatic lifting piece feeding device. The automatic box shell carrying robot is used for carrying capacitor box shells to the automatic box shell positioning and overturning device from the box shell feeding position. The automatic lifting piece feeding device is used for clamping lifting pieces, carrying the lifting pieces to the welding position and pressing the lifting pieces and the capacitor box shell. The lifting piece automatic welding device is used for welding the lifting piece and the capacitor box shell; and the automatic box shell positioning and overturning device is used for clamping, positioning and welding the capacitor box shell and overturning the capacitor box shell of which one side is welded for welding the other side.

The photovoltaic cell welding device used in photovoltaic module manufacturing relates to the technical field of photovoltaic module welding equipment, including a support base, the support base is a horizontally grounded square base, a welding workbench is fixedly arranged above the support base, the welding workbench is a horizontally arranged square table, the support base is respectively provided with a conveying and feeding assembly, a welding strip arrangement assembly and a preheating assembly, and the welding workbench is respectively provided with a flip switching assembly and an induction welding assembly. The present invention solves the problems of low manual welding efficiency, inconvenient photovoltaic cell positioning and face-changing adjustment during mechanized welding, inconvenient arrangement of the convergence welding strip, and the inability to realize diversified welding processing due to limited functions of the welding mechanism when welding and assembling photovoltaic cells in the traditional technology.

The present invention relates to a narrow gap laser-GMAW composite welding method coupled with a molten pool, and belongs to the field of welding technology. The technical scheme is as follows: during welding, the spot of the laser beam (1) swings along a predetermined trajectory inside the narrow gap groove, melts the side wall of the narrow gap groove, and forms a laser molten pool (3); the GMAW arc (2) remains stationary at the center position of the narrow gap groove, directly acts on the laser molten pool (3), and the GMAW arc (2) forms a liquid metal that spreads and flows along the surface of the laser molten pool (3) under the action of surface tension, and after coupling with the laser molten pool (3), a composite molten pool (4) is formed, which is finally cooled and solidified into a weld (5). The present invention ensures that the side wall of the narrow gap groove is well fused. Since the GMAW arc and welding wire do not perform periodic reciprocating motion during the welding process, the wear of the conductive nozzle is significantly reduced. In particular, for materials such as high-strength steel, stainless steel and titanium alloy, the welding stability and reliability are significantly improved during long-term welding.

The invention discloses a butt welding machine which comprises a rack, and a first welding assembly and a second welding assembly are arranged on the rack. The first welding assembly and the second welding assembly each comprise a supporting seat, and a supporting frame is arranged on each supporting seat. A movable jaw is arranged on the supporting frame, and a fixed jaw is arranged on the supporting seat; the supporting base of the second welding assembly is fixedly connected with the rack, and the supporting base of the first welding assembly is in sliding fit with the rack. The movable jaw comprises a movable seat and a connecting seat, and a conductive piece is arranged between the movable seat and the connecting seat. When the fixed jaws of the first welding assembly and the second welding assembly are sleeved with a workpiece, the movable jaws of the first welding assembly and the second welding assembly move downwards, and after the workpiece is pressed, the conductive piece is powered on and the to-be-welded part of the workpiece is molten, molten weld joints are extruded together through movement of the first welding assembly, and welding of the workpiece is completed. On the basis, the welding speed can be increased, the strength of welding seams is enhanced, and the phenomena of air holes, false welding and the like of the welding seams can be effectively overcome.

The embodiment of the invention discloses a cylinder assembling device of a cylinder mixer and a mounting method of a cylinder, a cylinder comprises a first cylinder and a second cylinder, the cylinder assembling device comprises at least two carrier rollers, at least two supporting rollers and a driving part, the two carrier rollers can be located on the two sides of the first cylinder respectively, the carrier rollers can move along with the first cylinder, and the driving part drives the first cylinder to move along with the second cylinder. The two supporting rollers can be located on the two sides of the second barrel correspondingly, the supporting rollers are used for supporting and rotating the second barrel so that the second barrel can be coaxially connected with the first barrel, and the driving part is connected with the supporting rollers and used for driving the supporting rollers to rotate. When the first barrel body and the second barrel body are connected, the first barrel body is driven by the driving piece to rotate, so that welding operation and barrel body rotation can be matched with each other, and a flat welding process can be adopted in the whole welding process. Therefore, the connection convenience and efficiency of the barrel are improved, the connection quality of the barrel is improved, and the installation and transportation cost of the barrel is reduced.

The utility model discloses a quick detach type advanced steel material welding auxiliary fixture, including support seat, the upper of support seat is provided with first advanced steel material body, the rear side of first advanced steel material body is provided with first clamp block, adjust the block, set up in the downside of first clamp block, and the inboard of adjust the block is provided with adjusting structure, the upside of first clamp block is provided with connecting block, and the front side of connecting block is provided with first locating rod, the outside of first locating rod is installed with locating cylinder, limit rod, set up in the inside of locating cylinder. The quick detach type advanced steel material welding auxiliary fixture, through to advanced steel material auxiliary fixture carries out quick detach type assembly, effectively improved the efficiency that advanced steel material that welds completed separated from the clamp, improved the speed of welding, at the same time, through to the adjustment of welding interval, effectively improved the application scope of advanced steel material welding.

The invention provides a processing method of a permanent magnet synchronous motorized spindle motor for a high-speed high-precision numerical control machine tool, which is used for optimally designing the processing technologies of a stator iron core, an armature winding, grinding of a stator iron core with a winding and a rotor iron core. A five-in-one lamination process is designed for the stator core, a dynamic paint dipping process is designed for the armature winding, a cooling-liquid-free intermittent air-cooling dry grinding process is designed for the stator core with the winding, and a seven-step lamination forming process is designed for the non-uniform segmented herringbone skewed pole rotor core. The electrical performance of the motorized spindle motor can be improved, and the overall precision of the motorized spindle can be improved.