206results about How to "Guarantee welding quality" patented technology

The invention discloses a rapid assembly welding construction method for boiler steam blowpipes. The method comprises the steps that small-pipe-diameter and large-pipe-diameter welding auxiliary structures are manufactured, pipelines are hoisted to the installation position for butt joint, the corresponding welding auxiliary structures are selected according to the pipe diameters so that pipe openings of the pipelines can be aligned and preliminarily welded and positioned, and final butt joint welding is completed after the auxiliary structures are dismantled. An auxiliary mounting and welding structure of the automatic screwing device is further manufactured, and the device enables a screwing driving mechanism to be in butt joint with a connecting bolt, a nut or an adjusting bolt by adjusting the positions of all parts and drives the screwing driving mechanism to rotate. According to the assembly welding device, the technical effects of quickly and accurately completing assembly welding of the boiler steam blowpipes and improving the construction efficiency and quality are achieved.

The invention relates to a box girder steel reinforcement framework closed ring forming welding device and method, the device comprises a steel reinforcement butt welding machine, the steel reinforcement butt welding machine comprises a movable clamping seat and a fixed clamping seat, and a butt welding area is arranged between the movable clamping seat and the fixed clamping seat; the positioning mechanism comprises a positioning frame, a driving cylinder, a rack, a side clamping seat, a front clamping seat and a rear clamping seat; a cylinder body of the driving cylinder is fixed on the positioning frame, a driving seat is arranged at the front end of the driving cylinder, racks are fixed on two sides of the driving seat, and the racks are adaptively positioned and slidably sleeved on the positioning frame; the racks on the two sides are meshed with corresponding gears, rotating shafts of the gears on the two sides are in transmission connection with left-hand thread screws extending towards the two sides, side clamping bases are arranged on the upper portions of the two sliding sleeves, and side clamping areas are formed. And the front clamping seat and the rear clamping seat correspond to each other and are respectively positioned on the outer side and the inner side of the butt welding area. A positioning tool is provided for the butt welding forming process of the rectangular steel reinforcement framework, and the consistency and reliability of welding quality are ensured through a positioning system and a clamping system.

The application discloses a large-diameter super-long aluminum alloy tunnel pipe assembling and butt welding system and method, relates to the welding technical field, and can solve the problem that the existing welding method cannot ensure the welding efficiency and quality of the large-diameter super-long aluminum alloy tunnel pipe. The application embodiment discloses a large-diameter super-long aluminum alloy tunnel pipe assembling and butt welding method, which is used for welding a plurality of pipe fittings and two flanges into a whole pipe, and comprises the following steps: S1, simultaneously sleeving the end portions of two pipe fittings to be welded on the same inner support tool, and checking the edge deviation and coaxiality; S2, if the edge deviation and coaxiality meet the requirements, welding the pipe fittings to be welded on the inner support tool; and S3, repeating the single welding process composed of S1 and S2 n times, and performing at least one length correction before the whole pipe is welded.

The application discloses a battery monomer, a battery device and a power utilization device, and relates to the technical field of batteries. The battery monomer comprises a shell assembly, an electrode assembly and a pole post assembly, the pole post assembly comprises a pole post main body and an adapter, the adapter is welded with a first shell wall, at least one identification part is formed on the side surface of the adapter away from the accommodating cavity, the identification part is arranged between the outer circumferential edge of the pole post main body and the outer circumferential edge of the adapter in the radial direction of the adapter, the identification part is configured to be visually detected and identified, the surface roughness of the identification part is smaller than the surface roughness of the remaining part of the side surface of the adapter away from the accommodating cavity except the identification part, and the surface roughness of the remaining part of the side surface of the adapter away from the accommodating cavity except the identification part is smaller than the surface roughness of the outer circumferential wall of the adapter. Therefore, the position grasping accuracy of the outer circumferential edge of the adapter can be improved through the identification part, the welding quality of the adapter and the first shell wall is improved, and the reliability of the battery monomer is improved.

The application relates to an argon pressure maintaining and cooling integrated device for stainless steel pipeline welding, and relates to the technical field of metal material welding, which comprises a welding bin, the outside of the welding bin is provided with an argon pressure maintaining mechanism, the inside of the welding bin is provided with a cooling mechanism, the argon pressure maintaining mechanism comprises a gas storage tank, the outside of the gas storage tank is fixedly connected with a blower, the outside of the blower is fixedly connected to the top of the welding bin, the outside bottom side of the welding bin is provided with a filtering assembly, and the outside of the filtering assembly is fixedly connected to the outside of the gas storage tank. The application has the advantages that through an argon circulation system, the gas storage tank, the blower and the filtering assembly are cooperatively operated, the resource utilization efficiency is improved while the welding quality is ensured, argon is delivered to the welding bin by the blower to form a protective gas layer, oxygen is effectively isolated, oxidation during the welding of the stainless steel pipeline is prevented, and the welding process is efficient, environmentally friendly and economical.

The application provides an optimization management system, method, storage medium and equipment based on steel mesh design, and the optimization management method based on steel mesh design comprises the following steps: obtaining element information of elements of a steel mesh to be opened; generating a design steel mesh according to a steel mesh layer, generating a product number and a version number corresponding to the design steel mesh; generating a steel mesh production file according to the design steel mesh, obtaining a physical steel mesh template corresponding to the steel mesh production file, generating a production template number corresponding to the physical steel mesh template, and storing the physical steel mesh template into a physical steel mesh template library according to the production template number; and putting into production the physical steel mesh corresponding to the physical steel mesh template. The application can establish a connection between steel mesh opening design and production data, thereby improving the qualified rate of the steel mesh opening design meeting the production requirements and guaranteeing the steel mesh quality and welding quality from the source.

The invention provides an optical module and a welding method applied to the optical module. The optical module comprises a circuit board, a first device and a second device. A first bonding pad and a second bonding pad are formed on the surface of the circuit board. A first connecting layer is arranged on the surface of the first bonding pad. The first device is fixed on the surface of the first connecting layer through welding, so that the first device is fixed on the surface of the circuit board. A second connecting layer is arranged on the surface of the second bonding pad. One end, close to the second connecting layer, in the second bonding pad contains a permeable layer; and the permeable layer comprises a second welding medium. It can be seen that the components of the second bonding pad and the second connecting layer both comprise the second welding medium, so that the fusion performance at the interface position between the second bonding pad and the second connecting layer is high, the chemical bonding force is large, the situation that cracks appear at the interface position between the second bonding pad and the second connecting layer is reduced, and the service life of the second bonding pad and the second connecting layer is prolonged. And the welding connection force between the second bonding pad and the second connection layer is ensured, so that the welding quality of the second device is improved.

The invention provides an auxiliary welding device and a welding method. The auxiliary welding device comprises a support. The bracket includes: a first rod extending in a first direction; the second rod extends in the second direction, is arranged on the first rod and is provided with a first clamping part; the first clamping part is used for being clamped with a first position of a supporting rod of the rotating brake; the first direction is perpendicular to the second direction; the rotating brake comprises a main rod and a plurality of supporting rods connected with the main rod; the first guide piece is provided with a second clamping part; the second clamping part is used for being clamped with a second position of the supporting rod of the rotating brake, so that the first clamping part and the second clamping part are arranged at intervals in the first direction, and the supporting rod is fixed in the first direction; and the second guide piece is used for being clamped with the main rod of the rotating brake, so that the length direction of the connecting hole of the main rod is the same as the first direction, and one end of the supporting rod can be located in the connecting hole of the main rod in the length direction. According to the welding auxiliary device, the welding machining convenience of the welding auxiliary device on the main rod and the supporting rod of the full-height rotating brake can be improved.

This utility model proposes a cylindrical secondary battery, including a positive electrode current collector and a negative electrode current collector. The positive electrode current collector includes a disk body and a tail body. The disk body is provided with multiple positive electrode welding areas. The area of ​​the disk body is S1, and the sum of the areas of the multiple positive electrode welding areas is S2. 100 12%S1≤S 100 ≤24%S1; The negative electrode current collector is provided with multiple negative electrode welding areas, and each negative electrode welding area is provided with multiple negative electrode solder marks. The area of ​​the negative electrode current collector is S2, and the sum of the areas of the multiple negative electrode welding areas is S. 200 Among them, 10%S²≤S 200 ≤20%S2. This utility model, by setting a positive electrode welding area and a positive electrode solder mark on the positive electrode current collector, and setting a negative electrode welding area and a negative electrode solder mark on the negative electrode current collector, and by reasonably setting the area of ​​the positive electrode welding area and the negative electrode welding area, can take into account the battery's overcurrent capacity as well as the battery's processing quality and processing efficiency, thereby effectively improving the overall performance of the battery.

The utility model discloses a kind of lining blanking machine for square tube lining plate welding, belong to welding auxiliary equipment technical field, the blanking machine mainly includes storage rack and push mechanism, storage rack is formed by first carriage, second carriage and the connecting end plate of both ends, form a slightly wider lining blanking passage, for horizontal stacking lining plate, push mechanism is fixed in storage rack bottom end side, its execution end is aligned with the lowermost lining plate of blanking passage, by cylinder driving connecting rod and L type poking piece mechanism, the lowermost lining plate is horizontally pushed out;Upper lining plate is automatically dropped to supplement under the action of gravity in succession, the utility model realizes the automatic, continuous, accurate blanking of lining plate, effectively improve the automation degree and production efficiency of square tube lining plate welding, reduce manual operation intensity and security risk.

This invention discloses a welding device for processing electricity metering boxes, belonging to the field of welding equipment technology. It includes a welding main body, with a pressing control component installed at the end of the welding main body. The pressing control component is used to elastically press down on the back plate of the electricity metering box. A weld point positioning component is installed at the bottom of the pressing control component. The weld point positioning component is used to control the position of the weld point. A tungsten needle lifting component is installed on the weld point positioning component. The tungsten needle lifting component is used to vertically lift the tungsten needle. The use of the weld point positioning component in conjunction with the pressing control component facilitates the worker's spot welding positioning while holding the welding torch body, ensuring the back plate is pressed tightly against the electricity metering box frame, maintaining contact between the welding base material, and simultaneously ensuring the accurate position of the tungsten needle on the welding torch body, eliminating the need for the worker to visually observe the tungsten needle position. This solves the problems of current electricity metering box welding devices being inconvenient for assisting in positioning the weld point and for automatically detecting loose tungsten needle clamping.

The application provides a kind of automobile metal cover welding tool and its using method, the welding tool includes fixed base, pressing plate, gasket and locking mechanism;Pressing plate is rotatably arranged on fixed base, and can be pressed tightly on the metal cover on fixed base;Gasket is rotatably arranged on fixed base, and can be inserted in the metal cover;Locking mechanism is arranged on fixed base, and can lock pressing plate, so that pressing plate clamps the metal cover on fixed base;The automobile metal cover welding tool and its using method provided by the application can effectively clamp and weld the metal cover;It is simple to operate, direct manual operation can achieve the purpose, can accurately control the gap between metal cover, and can be adjusted according to the actual situation of production, to ensure the clamping and welding quality.

The utility model relates to mechanical manufacturing field discloses a kind of welding tooling intermediate connecting piece positioning device, including workbench, the top of the workbench is fixedly connected with slide rail, the outer wall of the slide rail is slidably connected with support, the top of the workbench is fixedly connected with fixed plate, the top of the workbench is placed with main body, the inner wall of the main body is provided with connecting piece, the right side wall of the support is fixedly connected with moving rod, the inner wall of the moving rod is provided with movable mechanism, the top of the workbench is provided with limit component, and the movable mechanism includes top block.In the utility model, the bracket is moved by electric control slide rail drive, the cooperation of long rod and extrusion groove is utilized, and the linkage of top block and movable spring is utilized, the automatic positioning of connecting piece on main body is realized, the cumbersome operation of manual welding after lifting by tool is replaced by artificial, labor intensity is reduced, and welding efficiency is improved.

The utility model relates to a geomembrane production laminating device which comprises a geomembrane base material, a conveying roller, a conveying base, a laminating assembly and a spraying assembly, and a geomembrane enters a composite die after passing through the laminating assembly and the spraying assembly; the film covering assembly is fixedly installed on the conveying base, at least one set of protective films are installed on the film covering assembly, and the protective films are located on the outer portions of the edges of one side or / and the two sides of the geomembrane base material respectively; the spraying assemblies are located outside the edges of the two sides of the geomembrane, each spraying assembly comprises a spraying pipe and a spraying head, and the spraying heads are arranged towards a protective membrane of a geomembrane base material; the geomembrane laminating device is reasonable in structural design, protective membranes can be laid on the surface of a geomembrane base material in the geomembrane base material production process by adding the laminating assembly and the spraying assembly, meanwhile, the protective membranes are prevented from being bonded together in the compounding process in a water spraying mode, and therefore a geomembrane with the protective membranes or a composite geomembrane can be machined and formed.

The invention relates to the technical field of metal pipe fitting welding, in particular to a metal pipe welding device and method. The rolling shaft fixator comprises a fixing assembly used for fixing the metal capillary tube and a welding assembly used for conducting end face girth welding on the metal capillary tube, the fixing assembly comprises a fixing base, a motor and a metal tube control piece, the motor and the metal tube control piece are located on the fixing base, and the rolling shaft fixator comprises an outer frame, an inner frame and a second side end support, according to the automatic welding machine, clamping rotation and welding head feeding are synchronously controlled through a set of driving motor, full-process automation of clamping, centering, rotating and welding is achieved, the production efficiency is greatly improved, and instability of manual operation is eliminated; the uniform-speed rotation of the metal capillary tube ensures that the weld penetration of girth welding is uniform, the formation of weld joints is consistent, and the quality of welded joints is remarkably improved.

The utility model belongs to the technical field of hot welding device, specifically disclose a kind of inside hot welding device of hemispherical shell, including work panel, fixed with locating die on work panel, multiple hot welding holes are arranged on the hemispherical locating wall of locating die, locating die is accommodated with the hot riveting piece with vertical movement function, the top of hot riveting piece is respectively equipped with hot riveting head corresponding the position of each hot welding hole, locating die is equipped with the die with vertical movement function directly above, and the pressure column is elastically inserted in the die pressure surface that is hemispherical concave arrangement. The utility model is fixed with locating die on work panel, its hemispherical locating wall is equipped with hot welding hole, for the riveting piece welding leg guidance, locating die has the hot riveting piece that can be vertically moved, top hot riveting head accurately acts on welding leg, directly above has the die that can be vertically moved, and die pressure surface is consistent with shell, cooperate elastic pressure column, realize the high-precision positioning of the riveting piece and shell, uniform stable hot welding and reliable crimping, improve production efficiency, ensure product quality.

The invention belongs to the technical field of welding equipment, particularly relates to automatic flame linear welding equipment for pipe fitting processing, and aims to solve the problems that when existing flame welding equipment is used for linearly welding a pipe fitting, a welding spot needs to be preheated in advance, the thicker the pipe fitting is, the longer the preheating time and the number of times are, and the working efficiency is greatly reduced. A guide rail base is fixedly connected to the upper side of the workbench, two rollback clamping assemblies are arranged on the guide rail base at equal intervals, and a guide rail frame is fixedly connected to the upper side of the workbench. According to the automatic flame linear welding equipment for pipe fitting machining, flame jet preheating is only conducted on the first welding spot, and then preheating and heat preservation can be conducted on the front portion and the rear portion of the welding spot through the stress-preventing auxiliary welding assembly by means of heat generated by the flame welding device. Compared with a traditional mode that welding needs to be repeatedly interrupted for preheating, the method has the advantages that the efficiency is greatly improved, the welding seam is prevented from being suddenly dropped and fractured when encountering cold through the heat preservation effect, and the welding quality is guaranteed.

The utility model provides a tarpaulin welding supporting table which comprises a body, containing grooves are formed in the tops of the two ends of the body, and supporting frames are arranged on the two sides of the two ends of the body. The guide column is horizontally and rotationally arranged between the two opposite supporting frames, and the guide column is located in the containing groove; the driving column is located above one guide column, the driving column and the guide column form a clamping space, one end of the driving column is provided with a Z-shaped driving handle, and the driving handle is used for rotating the driving column. According to the supporting table for tarpaulin welding, the using function effect is better.

This application relates to the field of industrial furnace temperature control technology, and discloses an energy-saving brazing furnace heating process temperature adaptive control method and system. The heating process of the brazing furnace is divided into at least three continuous temperature ranges, including a first temperature range, a second temperature range, and a transition temperature range. A first power control strategy and a first temperature fluctuation tolerance are configured for the first temperature range, and a second power control strategy and a second temperature fluctuation tolerance are configured for the second temperature range. The current temperature range of the brazing furnace is determined based on the current temperature. When it is determined that the brazing furnace is currently in the first temperature range, the first power control strategy is executed to output heating power, ensuring that the characteristic temperature is within the first temperature fluctuation tolerance. When it is determined that the brazing furnace is currently in the second temperature range, the second power control strategy is executed to output heating power, ensuring that the characteristic temperature is within the second temperature fluctuation tolerance. When it is determined that the brazing furnace is currently in the transition temperature range, a smooth switching logic is executed.

The utility model provides a bonding wire structure and a packaging structure, the bonding wire structure comprises a first welding spot part, a second welding spot part and a middle connecting section, and two ends of the middle connecting section are respectively connected with the first welding spot part and the second welding spot part; the first welding spot part and the second welding spot part are made of a first conductive material, at least part of the middle connecting section is made of a second conductive material, and the first conductive material is different from the second conductive material. In the application, the material of at least part of the middle connecting section is different from the materials of the first welding spot part and the second welding spot part, and the first welding spot part and the second welding spot part are closely related to the welding quality, so that the materials with high price and good performance can be selected, the welding quality is ensured, and the requirement of welding reliability is met; and the middle connecting section has little influence on the welding quality and can be made of materials with low price and low performance, so that the welding quality is ensured, the cost is reduced, and the production requirements of products are met.

The invention relates to an argon arc welding seam welding method for a lock bottom butt joint with a thermal barrier coating. The argon arc welding seam welding method comprises the following steps that S1, a welding seam joint is machined, specifically, a first groove is machined in a lock bottom at the mounting edge of the inner wall of a large bent pipe to be welded, a truncated edge is reserved, a second groove is machined in the mounting edge of the outer wall of the large bent pipe, and a truncated edge is reserved; the inner wall of the large elbow pipe and the outer wall of the large elbow pipe are combined, the lock bottom of the inner wall of the large elbow pipe is aligned with the mounting edge of the outer wall of the large elbow pipe, and the gap of the to-be-welded position is smaller than or equal to a first threshold value; s2, first-layer backing welding is carried out, during welding, welding wires are not filled, the truncated edge is directly penetrated in a penetration mode, and the step S3 is carried out after cooling; and S3, second-layer cosmetic welding is conducted, the first groove and the second groove are filled with welding wires, and then welding is conducted. According to the method, the welding quality can be guaranteed, heat input during welding can be obviously reduced, the coating is effectively prevented from falling off, and therefore the service life of the aero-engine large elbow is prolonged.

The invention belongs to the technical field of non-oriented silicon steel laser welding, and relates to a welding and rolling method for welding seams of thin-gauge non-oriented silicon steel. According to the method, the head and the tail of the thin-specification large-grain non-oriented silicon steel substrate with the width of 1000-1200 mm are welded through an effective welding process, the rolled hard plate is smoothly rolled through five-rack acid continuous rolling, continuous production of cold continuous rolling is achieved, the production efficiency is greatly improved, the improvement of the product quality stability is facilitated, and the production cost is reduced. And products with consistent thickness, performance and surface quality can be obtained more easily.

The invention discloses a pin welding device for LED lamp production. The pin welding device comprises a welding table, a mold and a circuit board. A negative-pressure adsorption cavity is formed in the welding table, an adsorption supporting plate is slidably arranged in the negative-pressure adsorption cavity and horizontally moves in the negative-pressure adsorption cavity to support the mold, a pressurization air cavity is formed in the mold, an adsorption fixing groove is formed in the mold in the height direction in a penetrating mode, and a blocking plate is slidably arranged in the adsorption fixing groove. The blocking plate is configured to be driven by the gravity of the circuit board to adjust the blocking state of the adsorption fixing groove, and the circuit board is fixed to the mold under the negative pressure adsorption effect. The invention belongs to the technical field of LED lamp welding, and particularly provides a pin welding device for LED lamp production, which adopts a negative pressure adsorption fixing mode to replace a traditional mechanical clamp fixing mode, is more convenient to operate, and can better meet the welding and fixing requirements of molds and circuit boards with different sizes.

This utility model relates to a composite carrier for laser welding. The composite carrier includes a carrier body and a carrier cover plate. The carrier body includes an aluminum alloy base plate, at least one synthetic stone carrier block disposed on the aluminum alloy base plate, and multiple positioning protrusions. The carrier cover plate includes a cover plate body corresponding to the aluminum alloy base plate, at least one welding clearance groove disposed on the cover plate body corresponding to each synthetic stone carrier block, and multiple positioning clearance holes corresponding to each positioning protrusion. The aluminum alloy base plate has at least one welding area, and the welding area is provided with a carrier mounting groove. The synthetic stone carrier block is installed in the carrier mounting groove and is used to correspond to the connection pads of the device to be laser welded. This utility model solves the problems of rapid heat dissipation causing welding problems when using aluminum alloy carriers to weld FPCA products, and the high weight and cost of synthetic stone carriers, which are detrimental to carrier handling and product production.

The invention relates to the technical field of flux component determination, in particular to a method for determining the content of calcium fluoride in flux for corrosion-resisting steel through ion chromatography. The invention discloses a method for measuring the content of calcium fluoride in welding flux for corrosion-resisting steel through ion chromatography. The method comprises the following steps: S100, preparing a sample to be measured; s200, pretreating a to-be-detected sample, and preparing a diluted filtrate; s300, setting working parameters of the ion chromatograph; s400, calibrating an instrument, and determining by adopting an ion chromatograph; and S500, measuring the calcium fluoride content of the to-be-measured sample. The method for determining the content of calcium fluoride in the flux for corrosion-resisting steel through ion chromatography has the advantage that the welding quality is guaranteed. And the welding flux does not need to be subjected to experimental detection before welding, so that the welding flux is saved.

The present application relates to the technical field of wire welding, in particular to a microphone wire welding processing equipment, comprising a workbench, a control module and a welding module installed on the workbench top, the microphone wire welding processing equipment further comprises a wire clamping unit, the wire clamping unit comprises a moving part arranged on the workbench top, a wire end supporting part is connected to the moving part, the wire is placed on the wire end supporting part, and the wire end supporting part drives the wire to move through the moving part. The wire clamping unit cooperates with the placing unit to detect the connection strength of the two branch wires of the wire and the microphone welding position at the same time after the wire and the microphone are welded, the detection of the two branch wires is opposite to each other, the strength of single branch wire welding is accurately detected, independent determination of single branch wire connection strength is realized, the situation that single branch wire is false welding but the whole is not detected is effectively avoided, and the welding quality is ensured.

The invention discloses a welding production line with an automatic welding jig locking function and relates to the technical field of welding production lines with automatic welding jig locking functions.The welding production line comprises a base, an electric sliding rail is fixedly connected to the top of the base, and a sliding sleeve is slidably connected to the outer wall of the electric sliding rail; the top of the sliding sleeve is fixedly connected with a fixing assembly. According to the welding production line with the function of automatically locking the welding jig, the first positioning groove of the upper pressing plate and the positioning protrusion of the lower pressing plate are roughly and precisely connected in a butt joint mode, and the multiple second positioning grooves and the positioning protrusions on the lower pressing plate are arranged, so that precise positioning and placing of a welding part are achieved, and the welding quality is ensured; the first bolt penetrates through the upper pressing plate and the lower pressing plate and is connected with the nut, the first bolt and the upper pressing plate are stably fixed, meanwhile, the first spring is arranged between the first bolt and the upper pressing plate and can push the upper pressing plate to return to the initial position by means of self elasticity during disassembly, convenient reset is achieved, and the assembly and disassembly efficiency is improved.

This application belongs to the field of friction stir welding technology, and specifically relates to a friction stir welding apparatus, a friction stir welding method, and a workpiece. The friction stir welding apparatus includes a stirring head and a follower pressure ring. The stirring head includes a shoulder and a stirring pin connected to the first end of the shoulder. The follower pressure ring has an inner hole, and the stirring head is movably inserted into the inner hole. The end face of the first end of the shoulder is flush with the lower end face of the follower pressure ring. The follower pressure ring forms a cavity with the shoulder on one side in the welding forward direction, and the lower end face of the other side is a plane. The above structure not only enables friction stir welding through the stirring head, but also allows the lower end face of the follower pressure ring to press down on the welded area, thereby restraining and eliminating flash.

The invention belongs to the technical field of welding tools, in particular to a welding tool for an electric power angle steel tower component, and provides the following scheme that the welding tool comprises a workbench, clamping assemblies are arranged at the two ends of the workbench, two lifting assemblies are arranged on the workbench, and angle steel is placed above the two lifting assemblies and clamped and fixed through the clamping assemblies at the two ends; the top of the lifting assembly is arranged to be a V-shaped face protruding upwards, a limiting air cylinder is arranged on the side edge, located on the lifting assembly, of the workbench, the end, facing the lifting assembly, of the limiting air cylinder is connected with a limiting block, a mounting frame is fixed to the limiting block, and a horizontally-placed positioning rod is in threaded connection with the interior of the mounting frame. The lateral limiting air cylinder is arranged to drive the positioning rod to make contact with the inclined face of the angle steel, auxiliary limiting in the horizontal direction and the vertical direction is achieved, lateral sliding or rotating possibly occurring in the welding process of the angle steel is further restrained, and the monitoring effect of the angle steel deviation state is improved through displacement of the movable block.

The utility model discloses a gas shield welding wire split line sizing die outlet on-line diameter measuring device which comprises an upper die body and a lower die body used in cooperation with the upper die body, detachable die cores are installed in the upper die body and the lower die body, a diameter measuring instrument used for detecting the diameter of a gas shield welding wire is installed on the side face of the upper die body, and the diameter measuring instrument is used for measuring the diameter of the gas shield welding wire. A pressure sensor electrically connected with the diameter measuring instrument is installed on the inner wall of the mold core, one end of the upper mold body is rotationally connected with one end of the lower mold body through a connecting hinge, and the other end of the upper mold body is fixedly connected with the other end of the lower mold body through a connecting bolt. The control of the diameter of the welding wire is more accurate and efficient, the production process can be adjusted in time according to data monitored in real time, the defective rate is reduced, the production efficiency is improved, meanwhile, the die replacement time and cost are reduced through the split type, and the production efficiency is further improved.