1750results about "Plasma welding apparatus" patented technology

The invention discloses an automatic welding device for a rotary alloy furnace tube, and belongs to the technical field of arc welding equipment.The automatic welding device for the rotary alloy furnace tube comprises a base and a U-shaped bin located at the top of the base, and the two ends of the interior of the U-shaped bin are jointly provided with a centering clamping mechanism used for clamping the outer side of the furnace tube; a driving mechanism for providing power for the centering clamping mechanism to clamp the furnace tube is arranged on the outer side of the centering clamping mechanism, and a welding mechanism is arranged on the inner top of the U-shaped bin. A local sealing design is adopted for the inflation mechanism, the annular air bag is attached to the inner wall of the furnace tube after being inflated, an independent cavity communicated with the outside only through a welding seam gap is formed near the welding seam, the protection requirement can be met only by filling the local space with argon, the whole furnace tube or a large-range external space does not need to be filled, and compared with traditional overall argon filling, the argon filling efficiency is greatly improved. The argon consumption is greatly reduced, the industrial gas purchase cost is remarkably reduced, and the production cost investment is reduced.

The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.

The invention relates to the technical field of welding platforms, in particular to a multifunctional welding process experiment platform and a process optimization system.The process optimization method comprises the following steps that a welding process setting module is constructed, and a welding mode, a groove type and a heat input scheme are preset; outputting the initial process configuration parameter set to drive a welding execution unit to perform automatic welding operation according to the initial process configuration parameter set; extracting a multi-dimensional process response vector including a stability index, metal fusion depth distribution and a heat affected zone expansion degree; outputting a welding seam grade result according to a preset quality grading standard, and generating a feedback identifier; and after updating, inputting to the step S2 again to form closed-loop optimization control. According to the method, digital modeling and evaluation of key indexes such as the welding stability, the fusion depth and the heat affected zone are achieved, and the problem that a traditional process depends on visual inspection and experience judgment is solved.

The invention relates to the technical field of bridge steel plate welding, and discloses bridge steel plate welding equipment facilitating feeding and discharging, feeding and discharging conveying mechanisms are arranged on welding table bodies, alignment mechanisms are arranged on the welding table bodies, and a sliding rail structure is arranged between the two welding table bodies; two sets of fixing mechanisms with lifting functions are arranged at the lower end of the sliding track structure, a welding mechanism is arranged on the inner side of the sliding track structure, a tensioning assembly is arranged on the upper portion of the welding mechanism, and a driving assembly is arranged on the connecting face of the welding mechanism and the track. According to the welding device, plates can be welded through the plasma welding gun, driving wheels in the driving assembly can enable the welding mechanism to move along the sliding rail structure, so that thick steel plates such as bridge steel plates are welded, the vertical position of the welding gun can be adjusted through the fixing mechanism and the lower rotating cylinder, and the welding effect is improved.

The invention relates to the field of plasma arc welding, in particular to a plasma arc welding machine for high-performance material circular mechanical parts. Comprising a welding box assembly, a protection assembly capable of achieving buffering protection is installed on the inner wall of one side of the welding box assembly, and a machining assembly is installed on the welding box assembly; in the high-temperature welding process, dry ice blocks are driven to be rapidly gasified to absorb heat, damage to the structure by high temperature is avoided, the service life of equipment is prolonged, when faults or deviation occurs in the welding process, a second compression spring drives a sliding baffle to move to the position under the plasma arc welding structure after feeling that pressure disappears, and the welding quality is improved. And in the moving process of the fan steel plate, the fan steel plate on the clamping structure is driven to drive a sliding plate to slide in a sliding groove to extrude a first compression spring for buffering protection, so that the convenience of the welding position is improved, and meanwhile, the working effect of the plasma arc welding machine is improved.

The invention relates to the technical field of plasma cutting equipment, and discloses metal plate cutting equipment which comprises a bottom frame, a cutting mechanism, a cleaning mechanism and a collecting mechanism, the cleaning mechanism comprises a mounting plate, a polishing plate, an extrusion spring, an abutting plate and a water cooling assembly, and the mounting plate is slidably connected to the bottom frame through the collecting mechanism; a mounting groove is formed in the mounting plate, the extrusion springs are fixedly connected to the bottom and the top in the mounting groove, the abutting plate is fixedly connected to the extrusion springs, the grinding plate is detachably mounted on the abutting plate, the collecting mechanism is used for collecting slag falling during grinding, and the cutting mechanism is used for cutting a metal plate. The cleaning mechanism is arranged to be matched with the collecting mechanism, after the metal plate is cut, slag and burrs on the upper surface and the lower surface of the metal plate are polished, the burrs and the slag on the surface of the metal plate are removed and collected, and therefore the situation that the burrs and the slag remain on the surface of the metal plate, and the subsequent plate machining quality is affected is prevented.

The invention discloses plasma metal cutting equipment and a cutting method, and relates to the technical field of plasma metal cutting. The plasma metal cutting equipment comprises a plasma cutting machine, and a feeding mechanism is arranged on one side of the plasma cutting machine; the feeding mechanism comprises a hydraulic expansion piece, one end of the hydraulic expansion piece is hinged to one side of the plasma cutting machine, a placing plate is hinged to the other end of the hydraulic expansion piece, and a second hinge block is fixedly connected to the outer wall of the placing plate. The push rod can push the lowermost metal plate in the metal plate pile to the plasma cutting machine, so that the metal plates can be automatically pushed to the plasma cutting machine for cutting machining work, the feeding mode saves a large amount of energy of workers through a method without lifting heavy metal plates, the operation is more convenient, and the working efficiency is improved. And the collision problem caused by manual lifting of the metal plate is also reduced.

This application relates to a laser-plasma composite cladding head and a composite cladding method, and belongs to the field of surface processing of metallic materials. In the laser-plasma composite cladding head of this application, a ring laser beam is split into two half-ring laser beams through an upper roof lens to avoid a tungsten electrode. The two half-ring laser beams pass through a left 45° reflective lens to be coaxial with the tungsten electrode and then are integrated into a complete ring laser beam through a lower roof lens, thereby allowing a coaxial output of the ring laser beam and a plasma beam. This application integrates the advantages of laser cladding and plasma cladding and adopts coaxial compounding and synchronous powder-feeding.

The utility model discloses a platform carrier roller type plasma cutting blanking machine, and belongs to the field of cutting equipment. The platform carrier roller type plasma cutting blanking machine comprises a workbench and a plasma cutting machine, the plasma cutting machine is connected to the surface of a supporting frame, and a cleaning assembly is assembled on the inner wall of a conveying roller; the cleaning assembly comprises an air blowing pipe, a limiting block is connected to the outer wall of a limiting rod, a connecting block is connected to the outer wall of the limiting block, and a rubber plug is connected to the outer wall of a connecting shaft. According to the platform carrier roller type plasma cutting blanking machine, through the arrangement of the cleaning assembly, when the conveying rollers rotate, limiting blocks can be pushed to do telescopic reciprocating motion in the air blowing pipes, so that air in the air blowing pipes passes through the surfaces, adjacent to the conveying rollers, of air blowing holes, and waste residues can be effectively prevented from being attached to the conveying rollers; and therefore, severe friction is generated between the workpieces and the conveying rollers, the discharging work of the workpieces is affected, and the overall usability of the device is improved.

The invention relates to the technical field of brazing, in particular to a brazing production line for radiator fin machining and a welding process thereof.The brazing production line comprises a plasma spot welding module and a brazing furnace, and brazing flux spraying equipment and drying equipment are sequentially arranged between the plasma spot welding module and the brazing furnace; a production line conveying belt is arranged in the plasma spot welding module, the brazing flux spraying device, the drying device and the brazing furnace and used for conveying radiator fins. The brazing filler metal in the radiator fins is melted in the welding bin, then the radiator fins are driven to vibrate in the promoting bin, and therefore when the liquid brazing filler metal flows into base metal gaps, the constraint of surface tension can be broken through moderate vibration.

The invention discloses a plasma arc welding device for producing a shell of a portable gas stove, and relates to the technical field of welding tools for the shell of the portable gas stove, the plasma arc welding device comprises a rack, a protection box mounted at the top of the rack and an image monitor mounted on the inner top surface of the protection box, and a rotary three-turn chuck is mounted on one side of the case; a first linear motor is mounted on the other side of the top of the rack, and a butt joint mechanism is mounted on the mounting seat; a feeding and discharging mechanism is mounted at the outer end of the herringbone rotating seat; a plasma arc welding mechanical arm is mounted on a moving seat of the second linear motor; the full-process automation of the to-be-welded assembly from feeding, grabbing to transferring is achieved; through cooperative clamping of the arc-shaped hoop plate and the arc-shaped clamping plate and cooperation with an anti-deviation structure of the anti-rotation arc strip and the anti-sliding groove, the stability of a to-be-welded part in the transferring process is ensured, and the positioning deviation risk caused by manual operation is greatly reduced; and through linkage adjustment of the electric push cylinder and the lifting assembly, the grabbing height and the transferring position of the shell of the portable gas stove of different specifications can be accurately adapted.

A tailor-welding, spinning and variable-wall-thickness forming method for a large-sized extension section of a liquid propellant rocket engine, which belongs to the technical field of metal forming. The method comprises: performing laser numerical control machining on a GH3044 superalloy to obtain two chord-tangent circles; performing electron beam welding to obtain a complete circle; performing a vacuum solid solution treatment; performing pre-forming to obtain a shallow dish shape; performing a vacuum solid solution treatment; assembling a variable-wall-thickness flat blank and a spinning mandrel of a first spinning die, and then performing spinning on a spinning machine to form a curved generatrix variable-wall-thickness blank part; performing a vacuum solid solution treatment; and assembling the curved generatrix variable-wall-thickness blank part and a spinning mandrel of a second spinning die, and then performing spinning on the spinning machine to form a curved generatrix variable-wall-thickness part. The present invention is mainly used for the manufacturing of an ultra-large-sized GH3044 extension section of the liquid propellant rocket engine, which has a diameter of 1200 mm and a length of 1500 mm, and the product precision reaches a wall thickness tolerance of + / -0.05 mm for each point and a surface profile of ≤3 mm.

The invention discloses a cutting device for the outer diameter of an impeller of an induced draft fan. The cutting device comprises a rack, a workbench, a support movably arranged on the rack, a cutting frame arranged on the support in a lifting mode and a cutting head arranged on the cutting frame. The cutting device further comprises a protection mechanism arranged on the cutting frame. The protection mechanism comprises a protection frame detachably arranged on the cutting frame, a plurality of eye protection frames movably arranged on the protection frame, eye protection pieces arranged on the eye protection frames, a power assembly used for controlling the eye protection pieces to move and a cleaning assembly used for cleaning the eye protection pieces. The cutting head is located in a space defined by the multiple eye protection pieces. The cutting device has the effect of protecting hard light in the cutting process, and the cutting safety environment is improved.

The invention discloses equipment and technology for plasma spray welding of a metal coating on the surface of a ball valve, and relates to the technical field of ball valve machining, the equipment comprises a base, two sliding tables, a lifting table, a clamping assembly, a guide rail mechanism, a sliding seat, a first telescopic support, a second telescopic support and a spray gun rod, the two sliding tables are symmetrically arranged on the base in a sliding mode, and the lifting table is arranged on the sliding tables; a clamping assembly is arranged on the lifting table, the guide rail mechanism is fixedly arranged at the center of the base, the sliding base is arranged above the guide rail mechanism in a sliding mode, a first telescopic support is fixedly arranged on the sliding base, a second telescopic support is vertically and fixedly arranged at the output end of the first telescopic support, and the spray gun rod is fixedly installed on the second telescopic support. The guide rail mechanism comprises a fixed table, a sliding block, a hydraulic telescopic rod, a guide block, a sleeve gasket and a connecting block. According to the method, the remodeling time and cost can be greatly reduced, the application range is effectively expanded, and the spray welding efficiency of the ball valve is further improved.

The invention relates to the technical field of welding, and discloses a plasma welding device for aluminum conductor cable production, which comprises a welding table and a welding gun, one end of the welding table is provided with a movable first clamping jaw, and the clamping end of the first clamping jaw is provided with a clamping seat; a second clamping jaw and a servo motor used for driving the second clamping jaw to rotate are arranged at the other end of the welding table, two slidable cleaning bases and an adjusting assembly used for adjusting the positions of the two cleaning bases are arranged on the welding table, and steel wire brush blocks are slidably connected to the two cleaning bases; a first abutting wedge block is arranged on one steel wire brush block. Polishing of the oxide layer on the cable body and cutting of the cable tie can be automatically completed, manual operation is not needed, time and labor are saved, convenience and rapidness are achieved, the welding efficiency is greatly improved, the wiring terminal is inserted into the cable body in a twisting mode, and therefore friction resistance is reduced, and the inserting process is smoother.

The self-adaptive metal plate high-precision cutting tool comprises an outer frame, a base and a cutting platform, the base is arranged at the bottom of the outer frame, adjustable supporting legs are installed at the bottom of the base, a groove is formed in the upper end face of the base, the cutting platform is installed in the groove, and a supporting assembly is installed between the lower end face of the cutting platform and the bottom wall of the groove. Clamping assemblies are further installed on the two sides of the cutting platform correspondingly, a metal plate is placed on the cutting platform, a high-precision laser scanner and an image recognition sensor are installed on the inner top wall of the outer frame, and a cutting head is further installed above the cutting platform. The universality and the application range of the tool are greatly improved; the whole cutting process is high in automation degree, manual intervention and adjustment time are reduced, the cutting efficiency is improved by more than 30% compared with a traditional tool, the production cost is effectively reduced, and the production efficiency is improved.

The invention discloses a plasma welding device for an automobile bearing component, and relates to the field of welding equipment. The multiple clamping mechanisms are installed on the rotary disc, when a workpiece clamped on one clamping mechanism is welded through the plasma welding gun assembly, a new to-be-welded workpiece can be synchronously clamped on other clamping mechanisms, and after a round of workpiece welding is completed, the rotary disc can be driven to rotate through the rotary driving assembly, so that the workpiece to be welded is welded through the plasma welding gun assembly. The rotating disc can drive the multiple clamping mechanisms to sequentially and alternately move to one side of the plasma welding gun assembly, so that the plasma welding gun assembly can continuously conduct welding work, and the welding efficiency of the plasma welding equipment can be improved. When the jig plate moves towards the plasma welding gun assembly, the transmission unit can drive the longitudinal lead screw to rotate, so that the longitudinal lead screw and the transverse lead screw drive the longitudinal clamping plate and the transverse clamping plate to move close to each other, a workpiece on the jig plate is clamped and fixed, and clamping and positioning of the workpiece are more convenient.

The invention belongs to the related technical field of welding, and particularly discloses an air energy water heater water tank inner container welding device which comprises a first machine base, a motor driving device, an industrial camera, a lifting machine and a second machine base, a lead screw loading table is arranged above one end of the first machine base, and a lead screw is rotationally arranged on the inner side of one end of the lead screw loading table; the lead screw is connected with an output shaft of the motor driving device, a sliding base is slidably installed outside the lead screw loading table and is in threaded fit with the lead screw, the lifting machine is arranged on the upper surface of the sliding base, a plasma welding gun is connected to the outer side of the lifting machine through an arranged movable frame rod, and the second machine base is arranged on one side of the outer wall of the first machine base. A pipe fixing mechanism is arranged on the upper surface of the second machine base, a frame base is arranged at the position, close to the middle, of the upper surface of the second machine base, and hanging and pulling mechanisms are arranged at the two ends in the frame base correspondingly.

The invention relates to the technical field of welding equipment, in particular to clamping equipment of a rake type drying assembly for a plasma arc welding machine and a working method thereof.The clamping equipment comprises a base, a conveying belt, a clamping assembly, a supporting seat and a rotary table, the upper end of the base is fixedly connected with a limiting frame, and the rotary table is rotationally connected into the limiting frame; the clamping assembly comprises a pair of concave clamping blocks, the concave clamping blocks are used for clamping the rake tooth rod, the outer ends of the concave clamping blocks are fixedly connected with nut pipes, the inner sides of the nut pipes are in threaded connection with first screws, the two ends of the concave clamping blocks are in sliding fit with guide frames, the first screws are rotationally connected with one ends of the guide frames, and the other ends of the first screws are in threaded connection with the guide frames. One end of the guide frame is fixedly connected with a rotating disc, and the concave clamping block is in sliding fit with the rotating disc; according to the automatic clamping device, the automatic clamping function is conveniently, rapidly and efficiently achieved.

The invention discloses a food detection metal block semi-automatic plasma arc welding machine, and particularly relates to the plasma arc welding production technology, the food detection metal block semi-automatic plasma arc welding machine comprises a first sliding frame, the upper end of the first sliding frame is fixedly connected with a blanking frame, a plurality of groups of second workpieces are arranged in the blanking frame, one side of the blanking frame is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with a clamping plate; a motor is fixedly connected to the upper end of the fixing plate, a motor shaft is arranged at the lower end of the motor in an extending mode, a first gear is fixedly connected to the lower end of the motor shaft, a second gear is meshed with one side of the first gear, and a plasma arc welding gun is arranged in the second gear. The motor drives the first gear to rotate anticlockwise through the motor shaft, the first gear drives the second gear to rotate clockwise, and therefore the special-shaped rotating disc is driven to rotate clockwise, automatic blanking and assembling of the first workpiece and the second workpiece are completed along with clockwise rotation of the special-shaped rotating disc, and the first workpiece and the second workpiece are automatically welded.

The invention relates to the technical field of circular tube welding, in particular to a circular tube plasma arc welding device which comprises a bottom plate and further comprises a positioning mechanism, a welding mechanism, a polishing mechanism and an extraction mechanism, the positioning mechanism comprises two fixing frames and two electric clamping jaws, and the welding mechanism comprises a welding gun, a rotating ring, a rotating assembly and a moving assembly. The grinding mechanism comprises an L-shaped plate, a Z-shaped plate, a grinding block, a lifting assembly, a telescopic assembly and a transmission assembly, the extraction mechanism comprises an air draft fan blade, a storage assembly and a plurality of suction nozzles, the welding gun, a rotating ring, a rotating assembly and a moving assembly are arranged, the height of the welding gun can be adjusted through the moving assembly, the welding gun can be close to a round pipe needing to be welded, and the welding efficiency is improved. And meanwhile, the rotating assembly can drive the welding gun to rotate around the outer walls of the circular pipes, and plasma arc welding of the ends of the two circular pipes is achieved.

The invention provides a plasma welding tool for water pump impeller machining, and relates to the technical field of welding tools, and the plasma welding tool comprises a basic frame assembly, a rotating mechanism assembly, a lifting adjusting mechanism assembly, a positioning mechanism assembly and an auxiliary welding system. The auxiliary welding system comprises a main control unit, a sensor unit, a parameter storage unit, a welding parameter dynamic generation module and a man-machine interaction unit. According to the scheme, aiming at traditional tool pain points, parameters are dynamically generated through multi-sensor collection and machine learning, PID closed-loop correction is conducted, and the welding quality stability is improved; manual intervention is reduced and the period is shortened by means of automatic regulation and control of the main control unit and man-machine interaction; and different impellers are quickly adapted by virtue of the classification process database and the welding parameter dynamic generation module, so that the adjustment time consumption is reduced, the quality, efficiency and flexibility are comprehensively improved, and the production cost is reduced.

The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.

The invention relates to the technical field of gold jewelry welding devices, and discloses a micro-beam plasma high-frequency solder-free high-purity gold jewelry welding device which comprises a workbench, a fixing frame is fixedly connected to the top of the workbench, and a second electric sliding rail is fixedly connected to the top of the workbench. A moving table is installed at the moving end of the second electric sliding rail, an electric rotating disc is installed on the inner wall of the moving table, a two-way threaded rod is rotationally connected to the inner wall of the electric rotating disc, a sliding plate is in threaded connection with the circumferential face of the two-way threaded rod, and a telescopic rod is slidably connected to the inner wall of the sliding plate through a spring; during welding treatment, the two-way threaded rod drives the clamping plate to elastically clamp gold, gold accessories are prevented from being deformed during clamping and welding, the working efficiency is improved, and human errors possibly caused by tedious operation are reduced.

The invention discloses a pressure vessel steel plate blanking plasma cutting machine, and relates to the technical field of integrated stamping, the pressure vessel steel plate blanking plasma cutting machine comprises a machine table and a bearing frame slidably mounted on the machine table, a grating is fixed on the machine table, and the pressure vessel steel plate blanking plasma cutting machine further comprises sliding seats slidably mounted on the two sides of the machine table; the two sliding seats are connected through a rectangular rod, a sliding table is slidably installed on the rectangular rod, a lifting plate is slidably installed on the side, facing the bearing frame, of the sliding table, a cutting gun is fixed to the lifting plate, a lower pressing tool is slidably installed on the bearing frame, and the two sides of the lower pressing tool are each fixedly provided with two guide rods. Directional transfer work in a high space is achieved through cooperation of the rolling turning assembly and the telescopic part, namely, transfer from a point A to a point B is achieved, the positions of the point A and the point B are changed along with movement of the sliding table and the cutting gun all the time, but the path from the point A to the point B is not changed, and therefore any material plate cut by the cutting gun can rotate to the lower pressing tool, and the cutting efficiency is improved. Stamping is completed through downward pressing of the follow-up frame.

The invention relates to the technical field of industrial automatic cutting equipment, and discloses industrial manufacturing automatic steel cutting electromechanical equipment which comprises a main body, supporting legs are fixedly connected to the four corners of the bottom of the main body correspondingly, a rectangular groove is formed in the outer wall of the top of the main body, and a plurality of partition plates are fixedly connected into the rectangular groove; the multiple partition plates are distributed at equal intervals, two first fixing blocks are fixedly connected to the outer wall of the top of the main body, and the two first fixing blocks are symmetrically distributed with the middle of the main body as the center. When a motor works, a driving shaft is driven to rotate, so that a fan rotates to generate suction force, external air is sucked into a protective shell, the air is changed into cold air through a refrigeration box through an air inlet pipe, and then the cold air is exhausted from an air outlet pipe to enter a hollow column; and then the steel enters the annular block through the opened through groove and the air inlet and is finally discharged from the air outlet, and the steel and equipment in the cutting process are cooled.

A welding torch includes a non-consumable electrode extending along an axial direction, a first member disposed outwardly of the non-consumable electrode, an inner nozzle disposed outwardly of the non-consumable electrode, an engaging member disposed outwardly of engaging with the first member and the inner nozzle, an outer nozzle disposed outwardly of the inner nozzle, and an electrode extrusion member disposed outwardly of the non-consumable electrode and inwardly of the inner nozzle. The electrode extrusion member is concentrically disposed outwardly of the non-consumable electrode, and the inner nozzle is concentrically disposed outwardly of the electrode extrusion member. A first gas flow path for flowing a first inert gas is provided between the non-consumable electrode and the inner nozzle. A second gas flow path for flowing a second inert gas is provided between the inner nozzle and the outer nozzle.

A computer display support welding device comprises a main supporting frame and a to-be-welded pipe, a circular seam welding mechanism is arranged at the top of the main supporting frame, the circular seam welding mechanism conducts pre-cleaning and welding operation on the to-be-welded pipe through a plasma welding head, bottom supporting bases are arranged on the two sides of the main supporting frame, and an auxiliary righting mechanism is arranged on the side face of the main supporting frame. The centering and positioning mechanisms are arranged on the two sides of the auxiliary righting mechanism, the auxiliary righting mechanism controls the centering and positioning mechanisms to be close to or away from to-be-welded pipes, so that feeding or discharging of the to-be-welded pipes is completed, the centering and positioning mechanisms clamp and position the to-be-welded pipes, and the to-be-welded pipes located on the two sides are in the state that the central axes coincide. And the to-be-welded pipes on the two sides are controlled to move to the to-be-welded positions. And only the plasma welding head moves in the overall welding process, so that the device consumes less energy in the welding process, and the overall welding cost is reduced.

The utility model discloses a special plasma beveling machine for H-shaped steel, and belongs to the technical field of H-shaped steel machining. The device comprises a workpiece input line, a workpiece overturning line and a workpiece output line, the output end of the workpiece input line is connected with a first cutting gun operation chamber, the output end of the workpiece overturning line is connected with a second cutting gun operation chamber, and the two ends of the workpiece overturning line are movably connected with the first cutting gun operation chamber and the second cutting gun operation chamber respectively. According to the utility model, in the process of simultaneously beveling and cutting four edges of a plurality of H-shaped steels and patterned H-shaped steels, the cutting gun performs straight seam cutting along the length direction of the lower flange of the workpiece, and when the workpiece completely enters the workpiece overturning line, the workpiece is overturned by 180 degrees, and then the lower flange of the overturned workpiece is cut; the four edges of a workpiece can be beveled at the same time, the consistency of the grooves of the workpiece is effectively guaranteed, the assembling and welding technology of the next procedure is facilitated, the cutting process is rapid and safe, and the cutting efficiency is high.

The invention belongs to the technical field of duck roaster processing, and particularly discloses a duck roaster processing furnace body welding device which comprises a working table, a supporting assembly is connected to one side of the upper end of the working table, a supporting seat is connected to the middle of the upper end of the working table, and rotating blocks are rotationally connected to the upper portions of the two sides of the supporting seat; one side of the supporting seat is connected with a driving motor, the output end of the driving motor is connected with the lower portion of one side of one rotating block, the upper ends of the two rotating blocks are connected with a supporting block, the upper end of the supporting block is connected with a supporting plate, and the two sides of the upper end of the supporting plate are connected with electric sliding rails. Stable clamping, accurate positioning and efficient welding of a duck roaster body of a special structure are achieved, the technical problem that traditional equipment is difficult to adapt to an inclined roaster body is solved, and the welding quality and the production efficiency are remarkably improved.