1077results 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 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 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 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 provides a steel arch follow-up hole cutting device and a steel arch hole cutting method applying the same. The steel arch follow-up hole cutting device comprises a positioning mechanism, a follow-up mechanism and a hole cutting mechanism. The rail assembly is rotationally connected with the fixing assembly and comprises a sliding rail component and a rack component which extend in the same direction, the rotary sliding assembly is slidably connected with the sliding rail component, the active driving assembly is fixedly connected with the rotary sliding assembly, and the active driving component is separably meshed with the rack component; the guide frame is rotationally connected with the rotary sliding assembly, the follow-up guide assembly and the follow-up positioning assembly are fixedly connected with the guide frame, the follow-up guide assembly comprises at least two guide wheel sets which are arranged at intervals and can stretch out and draw back, and the guide wheel sets are used for clamping a steel arch. The follow-up positioning assembly is used for being detachably connected with the steel arch so that the follow-up mechanism can move along with the steel arch. The hole cutting mechanism is movably connected with the follow-up mechanism and comprises a cutting gun arranged in a rotating mode, and the cutting gun is used for drilling holes in the steel arch frame.

The invention relates to the technical field of cutting equipment, and provides heat exchanger tube nest numerical control cutting equipment and a high-precision cutting method.The heat exchanger tube nest numerical control cutting equipment comprises a base, a first supporting plate, a second supporting plate and a third supporting plate are arranged on the base in the length direction of the base, and the first supporting plate is slidably connected to the base; the second supporting plate and the third supporting plate are both fixed to the base. According to the vertical cutting device, a second rotating disc is accurately controlled to rotate through a third driving mechanism, the second rotating disc rotates to drive a stop lever to move in a limiting groove, a support is pushed to rotate with a third hinged shaft as the center, and the spraying direction of a plasma spraying gun is tangent to the tube wall of the tube nest; when plasma is cut, a reflecting surface is formed on the inner wall of the other side, so that plasma hedging is caused, the plasma beam is jetted in the tangential direction through tangent angle cutting, the hedging phenomenon is avoided, the cutting gap is controlled, and the cutting precision is improved compared with a traditional mode.

The application relates to the technical field of plasma arc welding, in particular to a plasma arc welding machine which comprises a machine table, an arrangement structure is arranged on the inner side of the machine table, a positioning structure is arranged on the top side of the arrangement structure, a lifting structure is arranged on the bottom side of the arrangement structure, a welding structure is arranged in the middle of the machine table, an adjusting structure is arranged on the inner side of the welding structure, and a bearing structure is arranged on the arrangement structure. The two parts to be welded can be synchronously rotated through the arrangement structure, good welding effect is obtained, the workpiece with a cylindrical structure can be stably and accurately fixed through the positioning structure, the height can be adjusted according to the specifications of the welding workpiece through the lifting structure, the welding work of the cylindrical workpiece can be quickly completed through the welding structure, the welding angle of the plasma welding gun can be adjusted through the adjusting structure, and the tubular or other special-shaped workpiece can be provided with good fixing effect through the bearing structure.

The invention provides a semi-automatic plasma arc welding workbench, and relates to the technical field of welding workbenches, the semi-automatic plasma arc welding workbench comprises a T-shaped groove workbench, a fixed matching sliding block is slidably mounted in a T-shaped groove of the T-shaped groove workbench, a notch is formed in the front side of the top end face of the fixed matching sliding block, and a columnar limiting groove is formed in the front side of the bottom face of the inner end of the notch; the axis part of the bottom surface of the inner end of the columnar limiting groove is provided with an insertion hole position penetrating through the bottom end surface of the fixed matching sliding block, and a film type pressure sensor is installed around the inner circumferential surface of the insertion hole position and adjacent to the bottom opening end part. According to the auxiliary monitoring structure based on the inserting column, the rubber round block and the film type pressure sensor, if the workpiece is collided by foreign objects in the clamping state and causes small displacement of the workpiece, early warning can be triggered synchronously, warning of the small displacement condition of the workpiece is achieved, and the working efficiency is improved. The technical problem that a plasma arc welding T-shaped groove workbench widely used in the current industrial manufacturing field cannot monitor the workpiece clamping state is solved.

A plasma cutting protection liquid, and a preparation method therefor, and a use thereof. The plasma cutting protection liquid comprises, in parts by mass: 8 to 40 parts of a water-soluble resin, 1 to 10 parts of a cosolvent, 0.1 to 8 parts of nanoscale inorganic particles, 0.5 to 3 parts of a flow promoter, 0.1 to 0.5 parts of an ultraviolet light absorber, and 50 to 100 parts of a solvent, wherein the water-soluble resin contains amide groups, and the water-soluble resin is a partially cross-linked resin. By using the partially cross-linked resin containing the amide groups, the partially cross-linked structure can form a three-dimensional network structure to inhibit molecular movement so as to improve the high-temperature resistance. The resin contains a large number of hydrophilic amide groups, which extremely easily form hydrogen bonds with water. After a cutting process is completed, a film layer formed by the protection liquid can be easily removed, and the cleaning process is simple. The inorganic particles can further improve the heat-resistant temperature of the cutting protection liquid and can also improve the compactness of the film layer, thereby facilitating the formation of a uniform film layer.

The invention discloses a curtain wall aluminum plate local hot melting welding device, and belongs to the technical field of curtain wall welding, the curtain wall aluminum plate local hot melting welding device comprises a climbing mechanism used for climbing along a keel and crossing an embedded plate, and the climbing mechanism is provided with a carrying mechanism used for driving a curtain wall aluminum plate to move to a designated installation position and a welding mechanism used for welding the curtain wall aluminum plate on the keel; through the climbing mechanism and the crossing module, the device can actively clamp and climb along a vertical keel through the wheel pasting module like a wall climbing robot, and when obstacles such as embedded plates are encountered, the device can alternately retract and lift the crossing module step by step, and lossless crossing is achieved; by means of multi-degree-of-freedom coordinated movement, a curtain wall aluminum plate can be extremely accurately conveyed to a designated installation position in a three-dimensional space, meanwhile, a photoelectric detection module on the welding mechanism can automatically scan and accurately position a seam, and accurate welding of local hot melting welding is achieved in cooperation with a plasma welding gun and an angle-adjustable wire feeding pipe.

The invention relates to the technical field of plasma welding devices, in particular to an assembly type building welding device with an angle adjusting function. Comprising a rack, a shear type position adjusting mechanism is arranged on the rack, at least three welding mechanisms are installed on the shear type position adjusting mechanism, the distance between every two welding mechanisms is synchronously adjusted, each welding mechanism comprises a welding frame connected with the rack in a sliding mode, a first air blowing pipe and a front visual detection module are sequentially installed on the welding frame from front to back, and two sliding bases are connected to the welding frame in a sliding mode; hanging shafts connected with the shear type position adjusting mechanism are installed on the two sliding seats, an angle adjusting frame is rotationally connected to the welding frame, and a laser preheating gun, a welding gun, a second air blowing pipe and a rear visual inspection module are sequentially installed on the angle adjusting frame. The device has the beneficial effects that by means of the linkage design of the shear type position adjusting mechanism and the angle adjusting system, cooperative and synchronous adjustment of the distance between the multiple welding mechanisms and the angle of the welding gun is achieved.

This invention discloses a metal pipe processing and cutting equipment and method, including a feeding clamping rotating assembly and a protective bearing kit. A plasma cutting mechanism connected by bolts is provided on one side of the upper part of the feeding clamping rotating assembly, and the metal pipe body is clamped on the inner side of the feeding clamping rotating assembly. The device mainly utilizes the output of a central motor to adjust the central gear, side gear, and flower-shaped lead screw, thereby adjusting the expansion block to a suitable radius. Since the rear and side elastic folding fabrics have an elastic folding structure, they can be adaptively adjusted to a suitable radius. Combined with the output of the electric rotating seat, upper rotating frame, and lower rotating frame, the bearing belt can be adjusted to a suitable taut length position as needed. This enhances the adjustment effect of the positioning adjustment component and the protective bearing kit, enabling the equipment to process products of multiple sizes.

The invention discloses welding equipment facilitating positioning and clamping and used for machining of an electric fire stove burner, and relates to the technical field of plasma welding machining. The welding equipment comprises a welding table and further comprises a clamping unit, a moving part, a lifting part and a welding unit; a clamping unit is fixedly connected to the top of the welding table, a moving part is fixedly connected to the top of the welding table, a lifting part is slidably connected to the outer wall of the moving part, and a welding unit is fixedly connected to the bottom of the lifting part. The motor drives the adjusting assembly to precisely adjust the clamping assembly so that the clamping assembly can be tightly attached to the outer wall of the lower disc to complete stable clamping, the upper disc is clamped through the cooperation of the extrusion part and then driven by the lifting part to move downwards, and precise attachment of the welding position of the upper disc and the lower disc is achieved; and the upper disc and the lower disc are corrected and positioned in real time, vertical alignment and tight fitting of welding positions are ensured, and the problem of welding dislocation easily caused by smooth welding surfaces of the upper disc and the lower disc of the leveling device is solved.

The invention discloses a tank body assembling and welding device, and relates to the technical field of welding equipment, the assembling device comprises a left assembling clamping mechanism and a right assembling clamping mechanism, the left assembling clamping mechanism and the right assembling clamping mechanism are arranged on a base and are oppositely distributed, and each assembling clamping mechanism comprises a sliding clamping seat arranged on the base; the sliding clamping bases are driven by a clamping power unit arranged on the base to be arranged in a sliding mode, end socket clamps used for clamping end sockets are arranged at the close ends of the two sliding clamping bases, and the two end socket clamps clamp the end sockets to be close to each other to be assembled with the barrel. The assembling and jacking mechanism is arranged on the base and located between the two assembling and clamping mechanisms, and the assembling and jacking mechanism is used for supporting and jacking the barrel, so that the barrel is aligned with the sealing heads at the two ends of the barrel; the welding device comprises a pre-welding mechanism and a welding mechanism and is used for welding the end socket and the barrel which are assembled. Therefore, the problem of tank body welding in the prior art is solved, the tank body welding efficiency is improved, the welding quality is improved, the labor intensity is relieved, and the labor cost is reduced.

The invention relates to the technical field of plasma cutting, and discloses an angle steel plasma cutting system for an angle steel tower, which comprises a main machine body, the main machine body comprises a clamping assembly, a protection mechanism is arranged outside the clamping assembly, the clamping assembly is used for clamping and fixing angle steel, and the angle steel penetrates through the clamping assembly and the protection mechanism; the protection mechanism comprises a supporting ring fixedly connected to the outer side of the clamping assembly, the outer portion of the supporting ring is rotationally connected with an outer protruding ring, and a grinding roller used for grinding the angle steel cutting end opening is arranged outside the outer protruding ring. The angle steel notch is scraped through the grinding roller, slag and burrs at the position of the angle steel notch are removed, the flatness of the position of the angle steel notch is guaranteed, the quality of the angle steel notch is improved, in the treatment process, the grinding roller is controlled to rotate, different cutting edges of the grinding roller are switched for cutting, and damage caused by long-time scraping of a single cutting edge is avoided; and the service life of the grinding roller is prolonged, and the slag and burr removing effect of the grinding roller is improved.

The invention discloses plasma arc welding equipment for automobile part machining, and relates to the related technical field of automobile part machining, the plasma arc welding equipment comprises a workbench, and the workbench is provided with a mechanical arm used for controlling a welding gun to move and a clamping mechanism used for clamping a composition pipeline of an automobile exhaust pipe; the number of the clamping mechanisms arranged on the workbench is two, the two clamping mechanisms clamp the two welded pipelines respectively, and a driving mechanism is further arranged on the workbench. When two sections of pipelines are welded, the two clamping mechanisms are driven by the driving mechanism to have the following strokes: a first stroke, the two clamping mechanisms respectively clamp and fix the two sections of pipelines; in the second stroke, the two clamping mechanisms get close to each other to drive the two ends, needing to be welded, of the two sections of pipelines to be in butt joint; and in the third stroke, the two sections of pipelines are driven to circumferentially rotate so as to assist the welding gun in welding operation.

The plasma arc welding machine comprises a bottom plate, linear motors are fixedly mounted on the two sides of the middle of the top end of the bottom plate correspondingly, the driving ends of the linear motors are fixedly connected with movable plates correspondingly, and the centers of the top ends of the movable plates are fixedly connected with one ends of hydraulic cylinders correspondingly; the other end of each hydraulic cylinder is fixedly connected with the middle of a connecting rod, the two ends of each connecting rod are fixedly connected with clamping assemblies respectively, the clamping assemblies are symmetrically arranged on the two sides of a placing plate respectively, and the placing plate is arranged at the top of the bottom plate; gantry sliding tables are fixedly installed at the two ends of the top of the bottom plate, angle adjusting mechanisms are fixedly connected to the driving ends of the gantry sliding tables, and plasma welding guns are fixedly connected to the bottom ends of the angle adjusting mechanisms. The placing plate is used for placing the semitrailer frame girder, the frame girder is positioned, clamped and fixed through the clamping assembly, the stability in the welding process is ensured, and the welding defect caused by workpiece movement is effectively avoided; and the clamping assembly is ingenious in design.

The invention provides a steel pipe welding device for house building, which relates to the field of welding equipment and comprises a welding machine main body, a clamping carriage, a plasma arc welding gun, a welding monitoring part, a welding auxiliary mechanism and a monitoring execution mechanism, the clamping sliding frames are connected to the upper portion of the welding machine body in a sliding mode. The welding bearing frame is arranged in the middle of the upper portion of the welding machine body. The welding mounting frame is fixedly connected to the rear portion of the welding bearing frame. The plasma arc welding gun is arranged on the inner side of the welding mounting frame; the welding monitoring pieces are fixedly connected to the outer sides of the clamping sliding frames correspondingly. The welding alarm part is fixedly connected to the upper portion of the welding machine body. The welding auxiliary mechanism is arranged above the welding machine main body; the monitoring executing mechanism is arranged at the front end of the upper portion of the welding machine body, the quality and stability of a welding seam are effectively improved, and the problem that the welding quality of a steel pipe is affected due to the fact that periodic impact loads generated during operation of a large machine are conducted to a welding device through the ground is solved.

A plasma torch system includes a regulator configured to direct a first portion of the gas flow from a gas source toward a consumable of a plasma torch, the regulator being configured to regulate a pressure of the first portion of the gas flow directed toward the consumable based on a pressure in a pilot chamber. The plasma torch system also includes a valve fluidly coupled to the pilot chamber and configured to direct a second portion of the gas flow from the gas source toward the pilot chamber. The valve, in the first position, is configured to increase the pressure in the pilot chamber at a first ramp rate, and the valve, in the second position, is configured to decrease the pressure in the pilot chamber at a second ramp rate.

The invention relates to the technical field of cold-roll steel sheet welding, in particular to plasma arc automatic welding equipment for cold-roll steel sheet machining, which comprises a rack, a moving unit connected to the rack and the like, a plurality of first electric push rods are fixedly connected to the bearing plate; the telescopic ends of the first electric push rods are jointly and fixedly connected with a first mounting plate. A base plate is connected to the first mounting plate and located under the plasma arc welding gun, an arc-shaped groove is formed in the base plate, and the base plate is located in a through groove in the middle of the bearing plate. A plurality of second electric push rods are fixedly connected to the front side and the rear side of the rack correspondingly; the telescopic ends of the second electric push rods located on the same side are jointly and fixedly connected with a second mounting plate, and the two second mounting plates are symmetrically arranged front and back. Through the synergistic effect of all the parts, automatic alignment and welding of the joints of the cold-roll steel sheet cylinder are achieved.

The invention discloses a corrosion-resistant high-entropy alloy surfacing layer for the surface of marine structural steel and a preparation method of the corrosion-resistant high-entropy alloy surfacing layer, and belongs to the technical field of structural steel. The preparation method comprises the following steps: (1) Co powder, Cr powder, Fe powder, Ni powder and Mo powder are mixed and then subjected to ball milling, and CoCrFeNiMo powder is obtained; (2) the metal matrix plate to be treated is subjected to alkali washing and then subjected to surface sand blasting roughening treatment till rough silver gray metal luster appears on the surface; and (3) a CoCrFeNiMo powder material serves as a raw material, plasma arc powder surfacing is conducted on the surface of the metal matrix plate subjected to sand blasting roughening, and the corrosion-resistant high-entropy alloy surfacing layer is obtained. The high-entropy alloy surfacing layer is high in bonding strength with a matrix, high in density, extremely low in porosity, excellent in corrosion resistance and capable of spontaneously resisting seawater corrosion, a passive film has high stability and pitting corrosion resistance, and the whole surfacing layer has good comprehensive corrosion resistance.

The invention discloses a nuclear power plant radioactive metal waste cutting volume reduction system and a cutting method. The system comprises a negative pressure sealed cabin, a cutting machine tool and an operation table. The cutting machine tool and the operation table are both arranged in the negative-pressure sealed cabin, and the negative-pressure sealed cabin is used for preventing smoke generated when metal waste is cut from diffusing out of the negative-pressure sealed cabin. The cutting machine tool comprises a moving platform and a cutting assembly. The cutting assembly is arranged on the moving platform, and the moving platform is used for controlling the cutting machine tool to move in the negative-pressure sealed cabin; the cutting assembly comprises a multi-axis mechanical arm and a cutting piece, and the cutting piece is arranged at the moving end of the multi-axis mechanical arm; the operation table comprises a rolling supporting assembly, the rolling supporting assembly is used for supporting and rotating the metal waste and assisting the cutting machine tool in conducting radial cutting on the metal waste, through flexible movement of combination of the multi-axis mechanical arm and the movable platform, high-speed and high-precision dynamic response and posture fine adjustment of the cutting assembly are achieved, and cutting of the metal waste of different sizes is met.

The utility model relates to the technical field of steel member processing, and provides a numerical control plasma groove cutting machine for processing steel members, which comprises a bearing table, a plasma cutting machine main body is assembled in the middle of one side of the bearing table, adjusting seats are fixedly connected to two ends of the top of the bearing table, and transmission screw rods are rotatably connected to the inner sides of the adjusting seats. One end of the adjusting seat is fixedly connected with a transmission motor, the output end of the transmission motor is fixedly connected with a transmission screw, the outer side of the transmission screw is in threaded connection with a guide frame, the top end of the guide frame is provided with a steel member carrying assembly, and the steel member carrying assembly comprises a supporting shaft rod, a carrying plate, a linear guide rail, a positioning plate, a linkage rod and a displacement piece. By means of the technical scheme, the problem that in the prior art, after a component is clamped, the contact position of the component and the working end of a cutting machine is difficult to adjust, and the overall machining efficiency is greatly affected is solved.

The invention relates to the technical field of plasma welding, in particular to plasma welding equipment for bimetal composite pipe machining, which comprises a horizontally arranged support mounting plate, two groups of displacement support material guide modules, two groups of displacement clamping and fixing modules and a rotary welding mechanism, and the rotary welding mechanism comprises a supporting mounting ring and an adjusting welding module. The plasma welding equipment is highly integrated and automatic, the whole-process integrated operation of pipe feeding, aligning, clamping and welding is achieved, the efficiency and quality are remarkably improved, the equipment has good adaptability, pipes of different lengths and diameters are stably treated through adjustable supporting and a quick-changing clamping module, and the production efficiency is improved. The multi-degree-of-freedom welding mechanism can accurately adjust the position and the angle, it is guaranteed that girth welding is accurate and uniform, the overall structure is stable, operation is convenient and fast, and high-quality welding of the bimetal composite pipe is effectively guaranteed.

The invention relates to the technical field of plasma arc welding, and discloses a plasma welding tool for automobile part production, which comprises a rack, and a welding assembly is arranged at the top end of the rack. According to the plasma welding tool for automobile part production, by arranging the welding assembly, when a first hydraulic cylinder is started, a plasma welding head is made to be close to a weld joint on a circular workpiece body at the center of a circular ring plate, and an asynchronous motor, a driving gear, a fixing frame, the circular ring plate and a driven gear ring are matched to synchronously and stably rotate in multiple sets of limiting wheels; when the support is kept horizontal and is located outside the top end of the annular plate, a first asynchronous motor is started to enable a one-way threaded rod to rotate, and then the support is driven to rotate synchronously, and after the plasma welding head is started, the plasma welding head is matched with revolution of the plasma welding head to better weld a circular weld joint; and the movable column drives the plasma welding head to transversely move to weld a horizontal welding seam on the square workpiece body, so that the adaptability and the efficiency of the tool body can be improved.

The invention discloses plasma cutting equipment for power distribution cabinet machining, and relates to the technical field of plasma cutting, the plasma cutting equipment comprises a machine tool, a cutting mechanism and a fixing mechanism, the cutting mechanism is arranged at the top of the machine tool, the fixing mechanism is arranged at the bottom of the cutting mechanism, and the cutting mechanism comprises an integrated end; the integrated end is arranged at the top of the machine tool, a top protection shell is arranged at the bottom of the integrated end, a rubber protection shell is arranged at the bottom of the top protection shell, and a bottom protection shell is arranged at the bottom of the rubber protection shell and is matched with large-range rotation of a main body gas pipe. On the premise of ensuring stable connection and good sealing of components, the arc angle is changed, the problem of uneven cutting lines caused by arc influence during cutting of concave-convex surface accessories of the power distribution cabinet is solved, the accurate matching tightness of the accessories is improved, and then the sealing performance of the power distribution cabinet is ensured.

According to the plasma welding device for the electric pressure test pump shell, intelligent welding is achieved through cooperation of hardware and software. Hardware comprises a moving and rotating mechanism composed of a master console, a straight line and a direct current motor to control the plasma welding device, and a bearing mechanism with magnetic attraction is used for stabilizing the shell. The software comprises a welding parameter self-adaption module, and parameters are automatically adapted and optimized according to shell attributes; the welding seam path planning module generates an accurate path according to the model or manual input; the real-time monitoring and early warning module monitors the welding temperature, the arc stability, the position of a plasma welder and the like and regulates and controls the welding temperature, the arc stability and the And the equipment state management module monitors equipment in real time, diagnoses faults and pushes maintenance suggestions. The device solves the problems that a traditional device is difficult in parameter adaptation, low in path planning efficiency and poor in precision, and not intelligent in process monitoring and equipment management, parameter optimal configuration and path precise planning are achieved, the welding quality stability, the operation efficiency and the equipment reliability are improved, and the efficient production requirement of the modern industry is met.

The invention belongs to the technical field of ship accessory machining, particularly relates to a plasma arc welding machine and method for ship accessory machining, and provides the following scheme for solving the problem that an existing plasma arc welding machine is poor in temperature stress treatment effect: the plasma arc welding machine for ship accessory machining comprises a bearing platform; the two mounting plates are arranged on the bearing platform, two symmetrical movable grooves are formed in the bearing platform, and the inner walls of the movable grooves are slidably connected with the outer portions of the mounting plates on the same sides; the four clamps are arranged between the two mounting plates, and the two clamps on the same side are symmetrical to each other; a first hydraulic rod is arranged on the upper side of the welding gun. According to the plasma arc welding machine and method for machining the ship accessories, heat of cooling liquid generated during welding of the welding gun can be recycled, the welded ship accessories are preheated, and therefore temperature stress generated during welding of the accessories is reduced, stress cracks generated after firmware welding are avoided, and the welding quality is improved.