116results about How to "Convenient welding operation" patented technology

The invention relates to the technical field of welding, in particular to a lead-free solder composition and a preparation method thereof. The composition comprises brazing filler metal and a brazing flux, wherein the brazing filler metal comprises 55 to 65 parts of copper, 30 to 40 parts of zinc, 0.5 to 1 part of silver, 0.1 to 1 part of tin, 0.1 to 0.5 part of nickel, 0.02 to 0.15 part of lanthanum, 0.03 to 0.15 part of cerium and 0.05 to 0.2 part of indium; the brazing flux comprises 18-22 parts of borax, 13-17 parts of boric acid, 25-32 parts of a potassium fluoride and potassium fluoborate compound, 3-5 parts of calcium fluoride, 12-16 parts of aluminum oxide and 8-11 parts of magnesium oxide. The lead-free solder composition does not contain toxic lead elements, pollution to the environment and the ecological system is little, the wettability, corrosion resistance, strength, stability and the like of the lead-free solder composition are improved, and the welding quality is comprehensively improved. According to the preparation method, uniform distribution and accurate control of the brazing filler metal and the brazing flux are guaranteed, stability and consistency of product quality are guaranteed, and the preparation method is easy and convenient to operate and suitable for mass production.

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 equipment for steel structure factory buildings, in particular to H-shaped steel welding equipment for a steel structure factory building. Comprising a welding device body and an operation table, the operation table is provided with a first supporting part and a second supporting part, the first supporting part is used for supporting an H-shaped steel body, and the second supporting part is used for fixedly installing a lining plate; the first supporting part comprises a lifting supporting assembly and a supporting bed arranged on the lifting supporting assembly, the supporting bed can support the front end of the H-shaped steel body to incline towards the second supporting part, and the second supporting part can drive the mounting lining plate and the H-shaped steel body to move and rotate. The H-shaped steel main body and the mounting lining plate are supported through the first supporting part and the second supporting part correspondingly, the H-shaped steel main body and the mounting lining plate can be in butt joint rapidly, the H-shaped steel main body can be kept in an inclined state for welding by adjusting the first supporting part, operation of welding wires and the welding device main body is facilitated, and the welding effect is guaranteed.

The present invention discloses a direct-buried polyurethane thermal insulation pipe, and relates to the technical field of thermal insulation pipes. The direct-buried polyurethane thermal insulation pipe comprises a thermal insulation pipe body buried in a groove, the side wall of each thermal insulation pipe body is sleeved with two groups of symmetrically arranged semicircular rings, and the number of each group of semicircular rings is two, the two semicircular rings are detachably connected by a first connecting mechanism, and the bottom of each group of semicircular rings is detachably connected with a base by a second connecting mechanism. The direct-buried polyurethane thermal insulation pipe is convenient for connecting two thermal insulation pipe bodies, and at the same time, it can ensure that the two thermal insulation pipe bodies are in a concentric state, and it is convenient to adjust the height of the two ends of the thermal insulation pipe body to ensure that it is in a horizontal state, so as to facilitate subsequent welding operations and ensure the quality of welding; when connecting, there is no need to turn the direction of the thermal insulation pipe body, so that the connection of the thermal insulation pipe body is more convenient and quick, and the efficiency of subsequent construction can be improved.

The utility model relates to the technical field of electric vehicle production, and particularly discloses a vehicle frame positioning and welding device which comprises a supporting mechanism, a rotating mechanism used for rotationally supporting a vehicle frame is arranged on the supporting mechanism, and a fixing mechanism used for adjusting and fixing different positions of the vehicle frame is arranged on the rotating mechanism. The rotating mechanism comprises a supporting frame, supporting shafts are oppositely arranged at the two ends of the supporting frame, and a worm gear is fixed to one supporting shaft. Through the arrangement of the adjusting assembly and the clamping assembly of the fixing mechanism, the adjusting assembly adjusts and adapts to the position of the clamping assembly, the fixing positions of different frames can be adjusted and used conveniently, the use range is widened, through the arrangement of the rotating mechanism, a rotating worm drives a worm gear to rotate, and a supporting shaft and a supporting frame are driven to rotate, so that the fixing effect is improved. And then the vehicle frame on the supporting frame is turned over, welding operation can be conveniently conducted on other directions of the vehicle frame, the use convenience is improved, and the production efficiency is improved.

The invention discloses a T-shaped assembly local deformation correction tool which is used for constraint correction during T-shaped assembly welding and comprises a tool body, a tensioning device and a gasket, the tool body is of a plate type structure and comprises a supporting part and a tensioning part, a jack is arranged below the supporting part, the upper end of the jack is connected with the supporting part, and the lower end of the jack is connected with the tensioning part. The lower end of the jack is connected with the T-shaped assembly, the tensioning device is arranged on the tensioning part, the upper end of the tensioning device is connected with the upper end face of the tensioning part, the lower end of the tensioning device is connected with the T-shaped assembly, the tensioning device can move along the tensioning part, and the gasket is arranged between the supporting part and the T-shaped assembly and can move along the tensioning part. Local deformation of the aluminum alloy T-shaped assembly can be conveniently and simply corrected, large deformation generated during welding is avoided, use is easy and convenient, the working difficulty and labor intensity of workers are lowered, and consumed time is shortened; the invention further provides a using method of the T-shaped assembly local deformation correcting tool.

The utility model belongs to the technical field of welding tools, and particularly relates to an underframe welding tool which comprises a workbench, the workbench is provided with supporting assemblies, the supporting assemblies are used for abutting against corresponding support rods, the workbench is further provided with pressing devices, and the pressing devices are used for pressing the support rods on the corresponding supporting assemblies for positioning. The support rods are accurately positioned through the supporting assemblies and can be spliced to form the bottom frame, rapid positioning and positioning accuracy of the support rods are improved, and welding seams are reserved between the support rods through welding, so that welding operation is simpler and more convenient; the pressing device is used in cooperation with the supporting assembly, the pressing device is operated to press the support rod on the supporting assembly, welding operation is carried out, swing and deviation of the support rod due to the influence of external force during welding are reduced, the positioning stability of the support rod is improved, and then the welding precision and the stability of the welding process are improved.

The present invention relates to a welding tool for welding a duct flange, comprising two vertical columns, a first beam being connected between the top ends of the columns; brackets lower than the first beam being provided on both columns, a second beam being parallel to the first beam being connected between the two brackets; an electric control box being provided on the first beam for sliding along the length direction of the first beam, a welding oscillator being provided on the electric control box for sliding along the length direction of the columns toward one side of the second beam, a welding gun being provided on the welding oscillator; a plurality of clamping and fixing devices for fixing the duct flange being provided at intervals on the second beam for spacing along the length direction of the second beam. The present invention has the advantages of reducing welding weaknesses of the duct flange and the pipe body and improving welding operation efficiency.

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 utility model discloses an engine scavenging collecting pipe machining device which comprises a lifting platform, the lifting platform is used for conducting lifting motion in the vertical direction, a transferring structure is arranged on the lifting platform, and the transferring structure comprises a first displacement assembly arranged above the lifting platform, a second displacement assembly arranged above the lifting platform and a third displacement assembly arranged above the lifting platform, the first displacement assembly can do linear reciprocating motion in the length direction of the lifting platform. The second displacement assemblies are arranged on the first displacement assembly and can do linear reciprocating motion in the width direction of the lifting platform; and the bearing assembly is arranged on the second displacement assembly and comprises a supporting frame and a plurality of guide rollers rotationally arranged on the supporting frame, and the guide rollers are used for bearing the scavenging collecting pipes. The machining equipment for the scavenging header of the engine can conduct welding operation on components of different models in the three-axis direction, meanwhile, the machining equipment is provided with a plurality of stations, and the welding efficiency can be improved.

This invention provides an auxiliary tooling for flipping circuit board welding, including a support assembly. A flipping assembly is mounted on top of the support assembly. The flipping assembly includes a pneumatic telescopic rod, a support plate, a servo motor, a connecting plate, a stepper motor, a groove, a bidirectional threaded rod, and a clamping plate. The support plate is fixedly connected to the top of the pneumatic telescopic rod, and a servo motor is mounted on one side of the support plate. This invention uses the servo motor to drive the connecting plate to rotate, causing the circuit board to flip, facilitating welding operations on the other side of the circuit board. This eliminates the need for manual flipping of the circuit board, improving welding efficiency and quality, and reducing the risk of circuit board contamination. The stepper motor drives the bidirectional threaded rod to rotate, and the threaded engagement causes the clamping plate to clamp the circuit board, preventing displacement of the circuit board during the flipping process, thus meeting the needs of automated, high-precision welding production.

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.

A high-voltage and high-current fast fuse comprises an end cover, a contact, a fuse tube, a fuse body, a fuse body guide column, arc extinguishing filler and a fastening screw, characterized in that two or more fuse body guide columns are arranged in the fuse tube, the fuse body is fixed on the fuse body guide column in a spiral winding manner, the contact is provided with a fuse body perforation, the fuse body is welded on the outer end surface of the contact through the perforation, the end cover end surface is overlapped on the outer end of the contact and is connected and fixed with the contact through the fastening screw installed hole of the end cover and the contact and the fastening screw. The disadvantages of poor welding are overcome to the maximum extent. In the case of not increasing the length of the fuse tube or even shortening the length, the rated voltage and the rated current of the fuse can be effectively improved, the anti-impact and anti-bumping capabilities of the fuse are improved, and the fuse can be used to protect the integrated power system of a ship, a large energy storage and power transmission system and other high-voltage and high-current power transmission systems.

The utility model relates to a barrel flattening device in the technical field of hub assembly production equipment, which comprises a support platform, a horizontal support roller is fixed on the support platform, a support plate I and a support plate II are respectively arranged below two ends of the support roller, one side of the support plate II is hinged with a stand column, and the lower end of the stand column is fixed on the support platform; the supporting roller is matched with a horizontal pressing plate. Two vertical rods are arranged on the supporting platform corresponding to the two sides of the supporting roller respectively, a connecting plate is arranged between the two vertical rods located on the same side of the supporting roller, a top plate is arranged at the top ends of the vertical rods, the horizontal pressing plate is connected with the top plate through vertical telescopic rods, and vertical pressing plates are arranged on the two sides of the supporting roller in a matched mode. The vertical pressing plates are connected with the corresponding connecting plates through horizontal telescopic rods. According to the utility model, the two ends of the rolled plate can be extruded, aligned and flattened, so that the two end surfaces of the rim are closer and smoother, the welding is convenient, the subsequent welding operation is facilitated, and the quality of the rim is improved.

The utility model discloses an auxiliary tool for welding a lithium battery pole, which belongs to the field of lithium batteries and comprises a lithium battery body. The mounting assembly is detachably arranged on the upper surface of the lithium battery body; the positioning assembly is arranged on the front surface of the mounting assembly and comprises a mounting plate which is arranged on the front surface of the mounting assembly; the fixing sleeve is arranged on the upper surface of the mounting plate; the U-shaped rod is arranged on the inner side of the fixing sleeve in a sliding manner; and the positioning sleeve is arranged on one end surface, far away from the mounting plate, of the U-shaped rod. According to the auxiliary tool for welding the lithium battery pole, the positioning assembly can be arranged on the upper surface of the lithium battery body through the arranged mounting assembly, so that the positioning assembly can accurately position the battery pole, a certain limiting effect is provided, the battery pole is effectively prevented from deviating during welding, positioning is accurate, and the welding efficiency is improved. Therefore, the welding quality of the battery pole is remarkably improved, and the reliability and stability of electrical connection of the lithium battery are guaranteed.

This utility model discloses a steel truss docking and positioning device, comprising two fixing components. Each fixing component includes an arc-shaped plate and an L-shaped plate. The arc-shaped plate is fixedly connected to the L-shaped plate on its open side, and the arc-shaped plate and the L-shaped plate are integral structures. End plates are fixed to adjacent sides of the L-shaped plates of both fixing components. A first connecting rod and a second connecting rod are respectively fixed to the surfaces of the two end plates. A sleeve is slidably fitted onto the surface of the first connecting rod. This utility model provides two fixing components, a first connecting rod, a second connecting rod, a sleeve, and a connecting sleeve. Each fixing component contains an extrusion member. The two fixing components are connected via the first connecting rod, the second connecting rod, and the sleeve. By fixing the two fixing components to the surfaces of the two docking steel trusses using the extrusion members, the docking positions of the two steel trusses are completely exposed, facilitating subsequent welding operations. Furthermore, the connection method between the fixing components and the steel trusses is faster and more convenient.

The welding tool for the safety protection frame is applied to the field of sheet metal part machining and comprises a base, a main supporting seat is arranged on the base, and a frame body is erected on the main supporting seat; the base is provided with a first fixing unit used for fixing the lower bottom plate, a second fixing unit used for fixing the upper bottom plate, a third fixing unit used for fixing the hinge block and a fourth fixing unit used for fixing the side bent plate, and the main supporting seat is provided with a fifth fixing unit used for fixing the handle. The first fixing unit comprises a limiting seat arranged on the base, a vertical plate bolt matched with the vertical plate nut is arranged on the limiting seat in a penetrating mode, and the end, facing the vertical plate nut, of the vertical plate bolt is in threaded connection with the vertical plate nut. The welding device has the technical effects that an operator can conveniently conduct welding operation, meanwhile, all parts are fixed in the welding process, all the parts are not prone to shaking, and the welding seam quality and the welding efficiency are improved.

The utility model relates to the technical field of steel pipe machining, and discloses a steel pipe welding auxiliary device for steel furniture production, which comprises a working table, a base table is fixedly connected to the top of the working table, an adjusting clamping mechanism is arranged at the top of the base table, and a moving mechanism is arranged at the top of the working table. The adjusting and clamping mechanism comprises an adjusting assembly and a clamping assembly, through the arranged adjusting and clamping mechanism, when welding of a certain angle needs to be completed between two steel pipes, a first motor is started, the first motor drives a first belt wheel to rotate, so that the horizontal angle of the steel pipes can be adjusted, and then a first screw rod is rotated; the first threaded rod drives the sliding block to move, then the sliding block drives the second rolling wheel to move, and therefore the turning plate on the fixing rod is driven to move, the turning plate is turned over, the perpendicular angle of the steel pipes can be adjusted, multi-angle welding between the two steel pipes during welding can be further adjusted, and workers can conveniently conduct welding operation; the welding accuracy is improved.

The present invention discloses a multi-layer and multi-channel hydraulic support welding device, which relates to the field of welding technology, and comprises a base plate fixed on a support frame, a welding gun is installed on the base plate through a horizontal auxiliary welding component, an arc groove 1 is provided on the base plate, a limit block is slidably installed on the arc groove 1, and a mounting frame is fixedly installed on one end of the limit block; the horizontal auxiliary welding component comprises a moving seat installed through a horizontal moving component, a clamping member is installed between the moving seat and the mounting frame, and clamping grooves matched with the clamping member are provided on both sides of the moving seat. The advantages are: it has the advantage of fast switching between horizontal welding and annular welding; through the coordinated use of the turning flip component and the clamping member, the welding gun can be quickly and accurately switched between the two welding modes, thereby improving the overall use efficiency of the device, reducing the space occupied by the whole, and making the welding operation of the hydraulic support more convenient.

The invention relates to the technical field of welding, in particular to high-corrosion-resistance and high-strength welding flux and a preparation method thereof.The welding flux comprises brazing filler metal and brazing flux, and the brazing filler metal comprises 40-55 parts of aluminum, 12-16 parts of aluminum-silicon alloy, 27-33 parts of copper, 0.5-5 parts of germanium, 0.6-1 part of manganese, 0.2-0.6 part of titanium, 2-5 parts of tin and 0.1-0.5 part of rare earth elements; the brazing flux comprises 25 to 50 parts of potassium chloride, 10 to 35 parts of sodium chloride, 4.0 to 30.0 parts of lithium chloride, 10 to 20 parts of a potassium fluoride-aluminum fluoride compound, 0.5 to 6 parts of zinc chloride, 2 to 6 parts of zinc fluoride, 0.05 to 3 parts of sodium fluoride, 0.05 to 3 parts of lithium fluoride, 0.05 to 2 parts of potassium hexafluorosilicate and 0.05 to 1.5 parts of potassium bifluoride. According to the welding flux, through mutual cooperation of the brazing filler metal and the brazing flux, the strength, corrosion resistance and stability of a welded joint are jointly improved.

The invention relates to the technical field of laser welding, in particular to a high-speed copper wire welding method. Comprising the following steps: shaping a high-speed copper wire to be welded; assembling the shaped high-speed copper conductor on a copper terminal; and the position of the blue-light semiconductor continuous laser is adjusted, so that emitted blue-light laser is focused to the joint of the high-speed copper wire and the copper terminal, and the copper wire and the copper terminal are welded. The high-speed copper wire welding mode is simple, the blue laser is adopted for welding the high-speed copper wire, the absorptivity and the welding effect of the laser welding copper wire can be improved, many problems existing in existing laser welding copper wires are solved, and the high-speed copper wire welding method has great popularization value.

The utility model relates to a clamping tool for welding a part support of an excavator, which is applied to the field of sheet metal part processing and comprises a base provided with a fixing device. The fixing device comprises a first fixing unit used for fixing the frame, a second fixing unit used for fixing the clamping block and a third fixing unit used for fixing the two curved rings, and the first fixing unit comprises a bottom positioning column which is arranged on the base and matched with the bottom positioning hole; the peripheral surface of the frame is erected on the base, the bottom positioning columns penetrate through the bottom positioning holes, a clamping device is further arranged on the base, and the clamping device comprises a first clamping unit used for fixing the frame and a second clamping unit used for fixing the bent plate; when the first end of the bent plate needs to be welded to the peripheral face of the frame, the frame is fixed through the first clamping unit. The welding device has the technical effects that an operator can conduct welding operation conveniently, and the welding seam quality and the production efficiency are improved.

A bottom frame fixing frame comprises a base, a vertical plate is installed on the base, a rotating head is rotationally arranged at the upper end of the vertical plate, a back plate is arranged at the inner side end of the rotating head, four pairs of guide holes are formed in the back plate around the geometric center of the back plate in a circumferential array mode, and the back plate is rotationally arranged so that welding operation can be conveniently conducted on the butt joint positions of rectangular pipes. A guide hole is formed in the back plate, a movable rod is movably arranged in the guide hole, a concave plate is arranged at the inner side end of each pair of movable rods, an adjusting plate is arranged at the inner side end of each concave part, a screw joint block is mounted on each concave plate, an adjusting screw rod is arranged on each screw joint block, a rotating seat is rotationally arranged at the outer side end of each adjusting screw rod, the rotating seat is mounted on the back plate, and a pair of movable holes is formed in each adjusting plate. And through the arrangement of the adjusting lead screw, the welding operation of the frame body structures is facilitated according to the sizes of different frame body structures, and therefore the application range is widened.

The utility model discloses a tool for processing parts of a diaphragm type compressor, which belongs to the technical field of compressor processing tools and comprises a tool bottom plate, a workpiece placing plane is arranged on the tool bottom plate, and a positioning line group for positioning a plurality of rib plates is arranged on the workpiece placing plane. A height positioning assembly is arranged on the workpiece placing plane and used for supporting and positioning the height of the connecting plate; the tool further comprises a reinforcing tool, and the reinforcing tool is pressed on the assembled workpieces and connected with the tool bottom plate in a fastened mode through connecting bolts. The device further comprises a positioner workbench, the positioner workbench is a rotatable platform, and the tool bottom plate is vertically installed on the positioner workbench. According to the utility model, the assembly, inspection, welding and other processes of parts can be integrally ensured, the problem of incomplete direct measurement and inspection is avoided, the inspection time is shortened, and the product qualification rate and the production efficiency are improved.

The present invention discloses a skid-mounted base for a gas generator set, relates to the technical field of gas generator sets, solves the problem of limited bearing capacity of an existing generator set base, and improves the strength and rigidity of the base. The specific scheme is as follows: it comprises a bottom beam and a cross beam of a square tube structure, wherein two bottom beams are provided, the two bottom beams are arranged opposite to each other, a plurality of cross beams are arranged between the two bottom beams, the cross beams penetrate the bottom beams and are welded together with the bottom beams, and a support base for supporting the generator set is also fixedly provided on the bottom beam and the cross beam.

The application discloses a screw pump, comprising a pump body, a driving device, a suction body and a discharge body. The pump body has a feeding end and a discharging end, and comprises a stator and a rotor matched with the stator; the driving device comprises an output shaft; the suction body is connected with the feeding end, and comprises a main body part, a tubular connecting part and a flange plate; an intermediate shaft connected with the output shaft and the rotor at two ends is arranged in the inside of the main body part; the connecting part is protruded on the outer surface of the main body part and is integrally formed with the main body part; the connecting part is communicated with the inside of the main body part; and the connecting part is welded and fixed with the flange plate; and the discharge body is connected with the discharging end. The screw pump of the application adopts the design that the connecting part is integrally formed with the main body part, so that the connecting part protruded on the outer surface of the main body part can be smoothly welded with the flange plate, not only the welding operation is simplified, but also the welding quality can be further improved, the possibility of being corroded by materials is reduced, and the overall durability of the screw pump is improved.

The present application relates to the technical field of laser welding, and particularly relates to a laser welding platform with multi-angle protection and annular magnetic field assistance, which comprises a workbench, a laser welding head, an upper protective gas device, an annular magnetic field device and a cooling device. The present application has compact structure design, convenient welding operation, and is especially suitable for good weld forming quality when high-power laser generator is used for laser welding. The upper protective gas device, the annular magnetic field device and the cooling device are integrated on the laser welding head, the overall structure design is more compact, and each component will move with the movement of the laser welding head, and is not easy to be affected by various welding conditions. The annular magnetic field is additionally arranged outside the laser welding head, a more uniform magnetic field is generated during welding, the molten pool is more uniformly stressed during weld forming, the weld collapse is reduced when the power output is larger, the molten pool is not easy to produce pores when subjected to external force under the action of the magnetic field force, and the weld forming quality of laser welding is improved.

The utility model relates to the technical field of profile assembly, and discloses a door and window profile assembly platform which comprises a first supporting plate, a first linear sliding table, a second linear sliding table, a second supporting plate, a third supporting plate, a micro-motion sliding table and a clamping assembly. In the using process, the multiple door and window profiles can be clamped and fixed through the multiple clamping assemblies. After a plurality of door and window profiles are clamped and fixed, the plurality of micro-motion sliding tables are respectively controlled to work, so that the plurality of door and window profiles can move along the length direction of the door and window profiles. Therefore, the door and window profiles which are distributed in a staggered mode are distributed oppositely so as to be assembled into a rectangular frame. After the positions of a plurality of doors and windows are finely adjusted, the plurality of linear sliding tables are respectively controlled to work, so that the plurality of door and window profiles can be spliced into a rectangular frame, and the subsequent welding operation is facilitated. Therefore, through the design of the multiple micro-motion sliding tables, when two door and window profiles opposite in position are staggered, the two door and window profiles opposite in position can be aligned conveniently.

The utility model discloses a battery which comprises an end cover, a shell and a current collecting disc, and the current collecting disc is arranged between the end cover and the shell; the flow collecting disc comprises a flow collecting disc body and a lap joint part, and the lap joint part is connected to the radial outer side of the flow collecting disc body in a surrounding mode and protrudes relative to the flow collecting disc body in the axial direction to form a limiting sinking groove matched with the end cover; in the axial direction, the projection of the lap joint part and the projection of the shell are at least partially overlapped, and the first outer circle face of the lap joint part is attached to the inner wall of the shell; and the end cover and the lap joint part as well as the shell and the lap joint part are in welded connection. Therefore, according to the battery, through lap joint of the current collector and the shell and lap joint of the end cover and the current collector plate, axial and radial three-dimensional positioning can be carried out on the current collector, the shell and the end cover before welding connection, and subsequent welding operation is facilitated. The shell, the current collecting disc and the end cover can be completed in a one-time welding process, and one-time welding can be omitted compared with a structural form that the current collecting disc and the shell are welded firstly and then the shell and the end cover are welded.

The application discloses an industrial park fence welding tool, and relates to the technical field of building engineering facilities, which comprises a swing long plate, a lifting moving plate, a vertical stand, an inclined bracing frame and a welding support mechanism, wherein the welding support mechanism is arranged at the top end of the lifting moving plate, the welding support mechanism comprises a top support plate fixedly connected to the top of the lifting moving plate, the top end of the top support plate is rotationally connected with an inclined support plate, one side of the top support plate and the inclined support plate, away from each other, is fixedly connected with a side long plate and a support long plate, the surface of the support long plate is rotationally connected with a support positioning plate, the side of the support positioning plate is fixedly connected with a first square plate, and the side of the support long plate is rotationally connected with a first rotating shaft.