2232results about How to "Easy to weld" patented technology

The invention discloses a copper alloy pipe and a preparation method and application thereof, and the copper alloy pipe comprises the following components in percentage by mass: 0.01%-0.80% of Sn, 0.005%-0.05% of P, 0.01%-0.10% of Zr, 0.001%-0.01% of B, 0.001%-0.01% of Mn and the balance of Cu and inevitable impurities. Wherein the copper alloy pipe contains MnZr and BMn compound particles, the number of the MnZr compound particles on the cross section of the copper alloy pipe is 0.005-0.15 / mu m < 2 >, and the number of the BMn compound particles on the cross section of the copper alloy pipe is 0.005-0.2 / mu m < 2 >. By adding Zr, B and Mn and controlling the content of Zr, B and Mn, the preparation process and the like, the number and uniformity of MnZr and MnB compounds are regulated and controlled, and the tensile strength, ductility, corrosion resistance, bending, flaring, welding, pressure resistance and other machining performance of the copper alloy pipe are improved; and the prepared copper alloy pipe fully meets the application requirements of heat conduction pipes of air conditioner heat exchangers, air conditioner indoor and outdoor unit connecting piping and the like.

The invention relates to the technical field of valve shell assembling and welding, in particular to a valve shell assembling and welding device which comprises a base and further comprises a moving mechanism, a positioning mechanism, a welding mechanism and two side plates. The positioning mechanism comprises two moving rings, two adjusting assemblies, two clamping assemblies, a plurality of sliding grooves, a plurality of sliding blocks, a plurality of abutting rods and a plurality of L-shaped positioning blocks. The welding mechanism comprises a driving assembly, two welding heads and two rotating assemblies. Two pipe openings of a valve can be positioned through the multiple abutting blocks on the two sides, a flange plate can be positioned through the multiple L-shaped positioning blocks on the two sides, and meanwhile due to the fact that the abutting blocks and the L-shaped positioning blocks on the same side are concentric, the positioned pipe openings of the valve and the flange plate can be concentric; it can be effectively guaranteed that the flange plate is accurately aligned with the pipe opening, the welding effect and firmness are guaranteed, and the phenomenon of virtual connection and virtual welding is avoided.

The invention is suitable for the field of aluminum alloy door and window welding, and provides a welding tool for aluminum alloy door and window machining, which comprises a mounting table top, and further comprises a belt conveying device and a mounting frame which are mounted at the upper end of the mounting table top, and one end of the belt conveying device extends into the mounting frame; two guide sliding blocks are arranged on the mounting frame, a lifting mechanism is arranged on the mounting frame, and the lifting mechanism is used for driving the two guide sliding blocks to move up and down. After welding is finished, the four aluminum alloy extrusion profiles are located below the tool plate, the lifting mechanism drives the two guide sliding blocks to move downwards, then the four welded aluminum alloy extrusion profiles are driven to move downwards, the L-shaped clamping plates loosen the aluminum alloy extrusion profiles, and the welded aluminum alloy extrusion profiles fall onto the belt conveying device. And the belt conveying device drives the welded aluminum alloy extrusion profile to be away from the tool plate, and then the welded aluminum alloy extrusion profile is rapidly discharged, so that the discharging speed of the welded aluminum alloy extrusion profile is increased.

The invention relates to the technical field of welding devices, and particularly discloses a solar frame and lamp pole welding device and method based on solar street lamp machining. Comprising a fixing base, a monitoring mechanism arranged at the top of the fixing base and used for determining the attaching degree of a lamp pole sleeve and a frame body, and a limiting mechanism arranged in linkage with the monitoring mechanism and used for fixing a solar frame. Therefore, the abutting degree of the lamp pole sleeve and the solar frame can be judged conveniently, the situation that welding is unstable due to a gap between the lamp pole sleeve and the solar frame is reduced, the limiting assembly and the monitoring assembly are arranged in a linkage mode, the solar frame can be clamped conveniently, the inner wall of the lamp pole sleeve can be aligned to the center of the solar frame conveniently, and the working efficiency is improved. And therefore, the outer wall and the inner wall of the lamp pole sleeve can be welded before and after subsequent overturning, and the welding stability of the lamp pole sleeve and the solar frame is improved.

The invention discloses an automobile body welding device and method capable of achieving multi-angle conversion, and belongs to the field of automobile part machining devices.The automobile body welding device comprises a base, a frame is fixedly installed at the top end of the base, a rotating rod is rotatably installed in the frame, the side wall of the rotating rod is fixedly sleeved with a supporting block, and a mounting base is fixedly installed at the top end of the supporting block; a supporting table is rotatably mounted at the top end of the mounting seat, a telescopic rod is fixedly mounted at the top end of the supporting table, a placement plate is arranged at the top end of the telescopic rod, and a limiting assembly is arranged at the top end of the placement plate. Through the arrangement of the clamping assembly, the effect of clamping and fixing a to-be-welded product is achieved, the effect of driving the to-be-welded product to turn over can be achieved, through cooperation of the driving assembly and the rotating assembly, the effect of adjusting the angle and direction of the to-be-welded product is achieved, and the to-be-welded product can be conveniently welded by the equipment at multiple angles; and the welding efficiency of equipment can be improved.

The invention provides a multidirectional adjustable bucket welding device, which relates to the field of bucket welding processing, and comprises an outer frame, a gantry crane fixedly connected to the top of the outer frame, an electric hoist slidably connected to the bottom of the gantry crane, a hanging bracket fixedly connected to the bottom of a hanging cable of the electric hoist, and two groups of electric telescopic rods fixedly connected to the left and right sides of the hanging bracket, the side end of the telescopic part of the electric telescopic rod is fixedly connected with a circular plate, the side end of the circular plate is fixedly connected with a conical head, the telescopic part of the telescopic cylinder 8 can drive the transverse frame to translate downwards by controlling the telescopic cylinder 8 to operate, the telescopic cylinder 8 can drive the arc cover plates on the two sides to press the outer curved surface of a wrapping plate downwards, and the wrapping plate can be clamped through cooperation with an arc support of the inner curved surface of the wrapping plate; and meanwhile, the curvature of the wrapping plate can be fixed, so that the side plate is prevented from deviating during welding, the welding efficiency of the side plate is improved, and the problem that the welding machining efficiency of the bucket is reduced in the process that the curvature of an inner curved surface of an existing bucket wrapping plate is fixed through a threaded telescopic rod is solved.

The utility model discloses a wire harness terminal laser welding device in the technical field of wire harness terminal welding, which comprises a workbench, a stand column and a rack, the stand column is fixedly connected to the top of the workbench, the rack is fixedly connected to the right side of the top of the workbench, the left side of the top of the workbench is fixedly connected with a vibration disc, and the vibration disc is fixedly connected with a motor. A vibration disc is fixedly connected to the top of the working table, a conveying channel is fixedly connected to the upper side of the front side wall of the vibration disc, a feeding table is fixedly connected to the position, located on the front side of the stand column, of the top of the working table, a feeding opening is formed in the top of the feeding table, and the right end of the conveying channel is fixedly connected to the top of the feeding table and communicates with the feeding opening. And a mounting groove is formed in the right side wall of the feeding table and penetrates through the feeding table and the wire harness terminal laser welding equipment, automatic continuous feeding of terminals can be achieved, more time and labor are saved in feeding, a worker does not need to hold a wire harness by hand to operate welding, welding is facilitated, and meanwhile safety is improved.

The invention discloses a vision-based weld defect detection method and system, and relates to the technical field of weld defect detection, and the method comprises the steps: adjusting welding parameters when scene environment data in a welding region is monitored and obtained to be inconsistent with expectation; after heat distribution data of the welding part is collected, a distribution abnormal value is generated, whether the distribution abnormal value exceeds the expectation or not is judged, if yes, welding defects of the welding part are predicted, and welding process parameters are optimized according to predicted data; after surface defect data of the welding part are recognized and obtained, internal defects of the welding part are detected, and simulation test data are obtained after the performance of the welding part is tested; and taking the surface defect data, the internal defect data and the simulation test data as feedback, and giving a corresponding process optimization scheme through the welding process optimization knowledge graph. The current welding defect is subjected to preliminary defect detection, the detection result can be quickly obtained, and whether the welding position has the welding defect at present or not is verified.

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 relates to the technical field of laser welding, in particular to square tube laser welding equipment capable of eliminating moving, jumping and deviation and a welding method.The square tube laser welding equipment comprises lifting plates which are symmetrically arranged, and inclined blocks are fixed to the lifting plates; the translation assembly is arranged on the lifting plate, and a connecting plate is connected to the translation assembly; the lifting mechanism is arranged on the connecting plate, a rotating plate is connected to the lifting mechanism, a welding head is fixed to the end, away from the connecting plate, of the rotating plate, and the lifting mechanism can adjust the distance between the welding head and the connecting plate through the rotating plate; the follow-up rotating mechanism is arranged on the connecting plate and is connected with the lifting mechanism; and the impurity cleaning mechanism is arranged on the rotating plate, the spacing adjusting and controlling assembly is connected with symmetrically-arranged pressing wheels, and during welding, the square pipe can be fixed through the pressing wheels, so that the situation that the welding quality is poor due to the fact that the square pipe jumps in the welding process is prevented.

The invention relates to a pipeline welding device for a thermal power plant. The pipeline welding device comprises a frame body, an inner ring centering mechanism, an outer ring centering mechanism, an inner ring welding mechanism and an outer ring welding mechanism, the inner ring centering mechanism comprises a driving motor, a two-way screw rod, two auxiliary supporting seats, two plugs and a guide assembly; the two auxiliary supporting seats are installed on the frame body, the two-way screw penetrates through the two plugs, the two-way screw is rotationally connected with the auxiliary supporting seats, and the two plugs are connected to the two-way screw in a threaded mode; the driving motor is mounted on one of the auxiliary supporting seats; the inner ring welding mechanism comprises a supporting base, a lifting air cylinder and an inner welding machine. The supporting base is horizontally installed on the two-way screw, the lifting air cylinder is installed on the supporting base, and the internal welding machine is installed on a piston rod of the lifting air cylinder. By means of the inner ring centering mechanism and the outer ring centering mechanism, two pipelines of different sizes and specifications can be centered and fixed conveniently, welding of inner ring butt seams and outer ring butt seams of the pipelines of different sizes and specifications is achieved, and the welding quality of the pipelines is improved.

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

The invention discloses a laser welding process of a neodymium iron boron Halbach magnetic assembly. The laser welding process comprises the following steps: firstly, arranging a plurality of magnetized magnets in a Halbach array form; then glue is dispensed on the butt joint faces between the adjacent magnets, and the multiple magnets are glued to form a Halbach magnetic assembly; next, adjacent magnets are welded and fixed on the weak magnetic surface of the Halbach magnetic assembly in a nanosecond laser welding mode; glue is dispensed at the welding position, and the welding seam is filled and covered with glue while the Halbach magnetic assembly and the magnet fixing piece are fixed in a glue joint mode. According to the method, the Halbach magnetic assembly is assembled in the mode that glue joint is conducted firstly and then nanosecond laser welding is conducted, the welding operation is easy to conduct, the welding position is accurate, and magnetic performance attenuation can be controlled within a small range.

The invention relates to the technical field of pipeline welding, in particular to a welding structure for a reinforcing ring on the outer surface of an anti-corrosion pipe, which comprises a frame body, two semicircular supports for supporting the anti-corrosion pipe are arranged above the frame body, the axes of the two semicircular supports are the same, and a fixing structure for fixing the reinforcing ring is arranged between the two semicircular supports. Welding guns used for welding the reinforcing ring are arranged on the two sides of the fixing structure correspondingly, semicircular arc-shaped sliding rails are arranged on the two sides of the reinforcing ring, arc-shaped sliding rods are slidably connected into the arc-shaped sliding rails, the welding guns are connected to one ends of the arc-shaped sliding rods, and the effect of improving the welding efficiency of the reinforcing ring is achieved.

The invention discloses a high-performance road and bridge steel formwork structure machining welding device which comprises a base, a square box is fixed to the top of the base, a first through groove is formed in the bottom of the square box in a penetrating mode, a rotating plate is rotatably connected to the interior of the first through groove, and a plurality of annular steel plates are stacked on the top of the rotating plate. According to the welding device for machining the high-performance road and bridge steel formwork structure, through the arrangement of the automatic rapid alignment mechanism, rapid and automatic alignment of a plurality of stacked ring steel plates is achieved, after the ring steel plates are aligned, welding of joints is facilitated, manual alignment operation is not needed, the automation degree is high, alignment is accurate, and the alignment effect is good; meanwhile, the four T-shaped supporting plates and the vertical plates can be adaptively expanded and contracted, ring steel plates of different sizes can be tightly supported and aligned, use of the ring steel plates of different pipe diameters is met, and the application range of the device is widened.

The invention relates to the field of single crystal furnace welding. The invention discloses a plasma welding device for a heightening section of a furnace cover of a single crystal furnace and a using method of the plasma welding device, and aims to solve the problem that an existing device needs two clamps to fix the furnace cover of the single crystal furnace and a heightening pipe respectively, and operation is troublesome. The device is composed of a furnace cover inner support fixing mechanism, a spring telescopic structure and a welding mechanism. According to the plasma welding device for the heightened section of the furnace cover of the single crystal furnace and the using method of the plasma welding device, an air cylinder extends to drive a deflection plate on a sliding block to deflect and is matched with a first deflection push plate to push an L-shaped inner supporting plate to move in parallel towards the side away from outer pipes, so that the four outer pipes are supported in a cover opening of the furnace cover of the single crystal furnace; and when the air cylinder extends, the four L-shaped inner supporting plates are driven to be expanded and supported in the heightening pipe in parallel at the same time, so that the central axis of the heightening pipe is coaxial with the central axis of the single crystal furnace cover, and the single crystal furnace cover and the heightening pipe are fixed to facilitate subsequent welding of the single crystal furnace cover and the heightening pipe.

The invention discloses a production welding tool for stainless steel pipe fittings, and relates to the technical field of pipe fitting welding, and the production welding tool comprises a composite mechanism. According to the production welding tool for the stainless steel pipe fittings, through the design of a composite mechanism, the pipe fittings at one end are vertically placed on the top of the bearing mechanism, the effect of fixing the pipe fittings is achieved through the bearing mechanism, then the pipe fittings at the other end are vertically placed in the butt joint mechanism, and the effect of stabilizing components is achieved through the butt joint mechanism; the lifting butt-joint mechanism is in butt-joint fit with the bearing mechanism, so that the anti-deviation effect is achieved, manual calibration errors are avoided, the welding effect is prevented from being influenced, the operation efficiency is improved, the welding mechanism is attached to the joint of the two pipe fittings, the bearing mechanism is driven to rotate through a rotating block, the constant-speed welding effect is achieved, the welding quality is improved, and the size of a welding seam is reduced. And the welding precision is improved, chippings can occur in the welding process, the protection ring plays a role in shielding and wrapping, and chippings are prevented from splashing.

The invention belongs to the technical field of three-dimensional measurement and weld joint processing, and discloses a weld joint feature recognition and path extraction method based on line laser measurement. According to the full-automatic welding seam shape extraction method, an automatic measurement part before welding seam polishing and other machining steps can be achieved, after a robot measures the position of a welding seam, welding seam shape extraction can be achieved, the position of the center line of the welding seam can be calculated, and therefore a machining path is obtained; and the robot can be directly guided to process the welding seam through the hand-eye matrix. In addition, the welding width and surplus height characteristics before and after welding seam machining can also be calculated and compared. After the welding width and the excess weld metal are calculated, the machining parameters can be further calculated, and the whole method provides technical support for automatic welding seam machining.

The utility model discloses a chip and substrate welding device with a positioning function, and relates to the technical field of welding devices, the chip and substrate welding device comprises a welding workbench, a rotating mechanism is installed at the center position of the upper surface of the welding workbench in a penetrating mode, and a substrate positioning and clamping mechanism is fixedly installed at the movable end of the rotating mechanism. A first side plate and a second side plate are symmetrically and fixedly connected to the two sides of the upper surface of the welding workbench, and a three-axis moving mechanism is installed on the outer surface of the first side plate in a penetrating mode. The position of the substrate can be changed, a user can weld different positions of the substrate conveniently, through the three-axis moving mechanism, a fourth motor and a vacuum chuck, a chip can be adsorbed and fixed, the chip can be driven to rotate, and therefore the chip can be positioned and welded conveniently.

The invention relates to the field of welding facilities, in particular to a bearing seat welding device which comprises a table top, a centering column is fixedly mounted in the middle of the upper end of the table top, a supporting ring is coaxially and fixedly mounted on the outer surface of the centering column, and push tables are arranged on the two sides of the centering column and elastically connected with the table top. A positioning column is fixedly installed in the middle of the upper end of the pushing table, positioning lugs are obliquely installed on the front edge and the rear edge of the upper end of the pushing table, the two positioning lugs are symmetrical with the axis of the positioning column as the symmetric center, a welding part is installed on the rear portion of the upper end of the table top, and the axis of the centering column and the axis of the positioning column are located on the same plane. The welding convenience is improved, the bearing seat can make close contact with the mounting lugs, follow-up welding forming is effectively facilitated, and meanwhile the welding efficiency is improved.

The invention belongs to the technical field of coal mining machine cutting pick holder welding equipment, and particularly relates to a coal mining machine roller cutting pick holder welding positioning device which comprises a supporting plate, the bottom end of the supporting plate is fixedly connected with a fixing frame, and the bottom end of the fixing frame is fixedly connected with a lifting mechanism. According to the welding and positioning device for the cutting pick holder of the coal cutter roller, the function of automatically and accurately positioning the welding angle is achieved when the cutting pick holder and the coal cutter roller are welded, and the welding and positioning device for the cutting pick holder of the coal cutter roller further has the height adjusting function, so that the convenience and efficiency of welding and mounting of the cutting pick holder and the coal cutter roller can be improved, and the labor intensity of welding personnel is reduced; in addition, the coal cutter roller cutting tooth seat welding positioning device further has the functions of continuously cooling a welding area and purifying welding smoke dust, welding angle positioning deformation of the cutting tooth sleeve can be effectively prevented through continuous cooling of the welding area, the welding quality can be improved, and the using reliability and the environmental protection performance of the device can be improved.

The invention relates to the technical field of welding machine equipment, and discloses a building board welding machine which comprises a supporting frame, the upper surface of the supporting frame is fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a driving rod, and the surface of the driving rod is fixedly sleeved with driving teeth. The upper surface of the bottom plate is fixedly connected with a tripod, and the side face of the tripod is rotationally connected with a connecting rod. A welding end is lifted, then a first motor is started, the first motor operates to drive a driving rod to rotate, the driving rod rotates to drive a driving gear to rotate, the driving gear rotates to drive a driven gear to rotate, the driven gear rotates to drive a connecting rod to rotate, and the connecting rod rotates to drive a first placing plate and a second placing plate to rotate to turn over two plates. And then the electric push rod is opened again, the electric push rod drives the welding end to weld the reverse sides of the two plates, and therefore the equipment has the effect that the plates are conveniently turned over and welded.

The invention provides a concrete box type module and a production method thereof, the box type module comprises a first prefabricated wall body, a first post-pouring wall body, a second prefabricated wall body and a second post-pouring wall body which are sequentially connected, the first prefabricated wall body and the second prefabricated wall body are oppositely arranged, and the first post-pouring wall body and the second post-pouring wall body are oppositely arranged; the first prefabricated wall body and the second prefabricated wall body each comprise a partition wall and a shear wall formwork which are sequentially connected, the face, facing the interior of the module, of the shear wall formwork serves as the inner surface of the module, and reinforcing meshes used for connecting the two adjacent edge reinforcing steel bar sets are laid on the face, back to the interior of the module, of the shear wall formwork. A truss extending in the height direction of the shear wall is fixedly connected to the position, corresponding to the position between every two adjacent edge steel bar sets, of the steel bar mesh, the first end of each truss is inserted into the shear wall formwork so that the steel bar mesh can be fixed to the shear wall formwork, and the second end of each truss faces the exterior of the module. The problems that shear wall steel bars need to be bound in a large amount on site, and a shear wall formwork does not participate in stress are solved.

The invention discloses a double-metal band saw blade cylindrical tooth tip welding device and method, and relates to the technical field of double-metal band saw blade welding. A double-metal band saw blade cylindrical tooth top welding device comprises a base, a guide mechanism, a feeding mechanism, a material distributing mechanism, a taking and conveying mechanism, a welding head and a clamping mechanism. An output shaft of the feeding mechanism rotates and drives the material distributing mechanism to conduct intermittent material distributing, and the taking and conveying mechanism drives the welding head to take the cylindrical tooth tips on a discharging port of the material distributing mechanism and convey the cylindrical tooth tips to the to-be-welded sawteeth of the back material to be welded. The guide mechanism, the feeding mechanism, the material distributing mechanism, the taking and conveying mechanism, the welding head and the clamping mechanism are used in cooperation, so that an existing multi-degree-of-freedom manipulator or a multi-axis motion platform can be replaced to complete resistance welding of the bimetal band saw blade tooth tip, and the automation degree and the equipment cost of the resistance welding device are both considered; and the automation degree and the production efficiency of resistance welding of the double-metal band saw blade cylindrical tooth tip are effectively improved.

The invention discloses building aluminum formwork welding equipment which comprises a lifting frame, a pressing and correcting mechanism is arranged at the top of the lifting frame, a left and right station switching mechanism located above the pressing and correcting mechanism is arranged on the lifting frame, and a telescopic welding part is rotationally and slidably connected to the left and right station switching mechanism. The left and right station switching mechanism is used for controlling the telescopic welding part to be switched on the left side and the right side of the pressing and correcting mechanism, and a control combination used for controlling the telescopic welding part to transversely slide is arranged at the top of the lifting frame. According to the device, the pressing and correcting mechanism is arranged, so that the ribbed tube freely placed in the aluminum template is conveniently pressed after being corrected, manual righting or clamp pressing control is not needed, the problem of displacement deformation cannot occur during welding after the ribbed tube is pressed, the welding efficiency is improved, and meanwhile, the problem of deformation of the whole aluminum template can be effectively avoided.

The utility model relates to the technical field of positioning clamp tools for angle steel tower welding, and discloses a positioning clamp tool for angle steel tower welding, which comprises a left rotating plate, a rotating opening is formed in the side surface of the left rotating plate, clamping grooves are formed in the side surfaces of the left rotating plate and the right rotating plate, and hinges are fixedly connected to the side surfaces of the clamping grooves in an axial symmetry manner. The side face of the hinge is fixedly connected with a clamping assembly. According to the positioning clamp tool for angle steel tower welding, through the arrangement of the clamping assembly, two steel plates are placed on clamping grooves in the side faces of a left rotating plate and a right rotating plate correspondingly, clamping plates are rotated to be attached to the side faces of the steel plates, then limiting rods are screwed, the limiting rods rotate through bearings, and the limiting rods can be clamped outside limiting holes in the side faces of the clamping plates due to angle changes of the limiting rods; and the clamping plates press and fix the steel plates to the side faces of the clamping grooves, so that the steel plates are firmly clamped, and the situation that welding deformation is caused by shaking in the welding process, and the overall firmness of the angle steel tower is affected is avoided.

The invention provides part welding equipment for mining machinery, and relates to the technical field of welding equipment.The part welding equipment comprises a machining box, a bottom box is fixed to the bottom of the machining box, an outer pulling plate is slidably mounted in the bottom box, moving wheels are mounted at the four corners of the bottom of the bottom box, and two rows of driving wheels are arranged on the two sides of the bottom of the machining box; through cooperation of the driving assembly, the driving wheel and the auxiliary wheel, pipe fittings of different sizes are adjusted and then limited, the pipe fittings are driven to be rotationally welded, and under the cooperation effect of the moving assembly and the clamping assembly, the two welded pipelines are pushed out of the welding position through the clamping effect of the bottoms and the two sides; a new pipeline is added from the inlet end of the machining box, the new pipeline and one end of an original welded pipeline continue to be welded, in the process, the moved-out pipeline is kept on the same axis with the newly-fed pipeline under the clamping and supporting effects, then the welding result cannot be interfered, and the welding efficiency is improved.

The invention provides a multi-angle adjustable welding device and method for a large-span steel structure, and relates to the technical field of welding devices. The multi-angle adjustable welding device for the large-span steel structure comprises a base, a cleaning assembly is arranged on one side of a moving box, L-shaped sliding rails are fixedly connected to the tops of two fixing plates, a lower moving plate is arranged between the two L-shaped sliding rails, and an upper moving plate is arranged at the top of the lower moving plate; the two ends of the lower moving plate are each rotationally connected with two lower supporting wheels, the two ends of the upper moving plate are each rotationally connected with an upper supporting wheel, and the two ends of the front side of the fixing frame are each provided with a positioning assembly. According to the multi-angle adjustable welding device for the large-span steel structure, the welding angle of the steel structure can be conveniently adjusted, operation is convenient, the steel structure can be conveniently lifted, the bottom of the steel structure can be rapidly welded, physical strength is saved, welding slag generated during welding can be conveniently cleaned in time, and the welding slag is prevented from affecting the product quality.

The invention discloses an automobile engine pipe fitting welding tool, and particularly relates to the technical field of automobile pipe fitting welding, according to the automobile engine pipe fitting welding tool, a supporting piece in a through groove and an arc-shaped supporting seat are used for bearing a conveyed engine pipe fitting, the arc-shaped supporting seat is used for bearing the edge of the engine pipe fitting, and cylindrical shells in storage cavities on the two sides slide towards the arc-shaped supporting seat; when the diameter of the engine pipe fitting is smaller than that of the arc-shaped supporting seat, the multi-stage linkage guide rail is unfolded, the end face of the cylindrical shell and the convex ring make contact with the arc-shaped supporting seat, the end of the engine pipe fitting enters the convex ring, and the two engine pipe fittings are attached through sliding; the outer surface of the bottom of the engine pipe fitting makes contact with the lower inner wall face of the convex ring, after the engine pipe fitting is synchronously clamped, the height of the engine pipe fitting is increased to the center position of the driving piece, then the transmission plate vertically moves downwards, the engine pipe fitting is continuously supported by the supporting piece and the arc-shaped supporting base, alignment of the center of the engine pipe fitting is not needed, alignment time is saved, and efficiency is improved.

The invention discloses laser power supply circuit board machining and welding equipment and a welding method thereof, and belongs to the field of circuit board welding, the laser power supply circuit board machining and welding equipment comprises a base plate, a surrounding shell is fixedly mounted at one end of the upper surface of the base plate, a cover body is fixedly mounted at the top end of the surrounding shell, and first motors are fixedly mounted on the two sides of the cover body; a welding device used for welding is arranged in the surrounding shell, a first groove body is formed in the position, corresponding to the welding device, of the upper surface of the base plate, a rotating part used for clamping a circuit board is rotationally installed in the first groove body, and first sliding blocks are fixedly installed on the two sides of the welding device correspondingly; according to the device, the overturning part is arranged, the circuit board at the welding position can be automatically overturned along with work of the welding device, the front face and the back face of the circuit board can be conveniently and automatically welded, shutdown for manual overturning is not needed, and the neatness and the fixing effect of the circuit board are guaranteed.