28results about How to "Reduce welding errors" patented technology

The invention provides a device for automatically producing a regular positioning net. The device comprises a mechanical arm, a first feeding structure, a second feeding structure, a third feeding structure, a welding table, a welding assembly and a grabbing assembly. The second feeding structure and the third feeding structure are matched with the welding table to complete the welding work of the second transverse rib and the vertical rib; after welding of the second transverse bars and the vertical bars is completed, the second transverse bars and the vertical bars are transferred to the position above the welding assembly through the mechanical arm and are in lap joint to third transverse bars on the welding assembly, a plurality of reinforcing meshes formed by welding of the second transverse bars and the vertical bars are welded through the welding assembly, and a regular reinforcing mesh is formed; the whole production process is unmanned, automatic production of regular reinforcing meshes is achieved, the reinforcing steel bar lap joint and welding process is automatic welding, manpower and time consumption is reduced, the production cost is reduced, and efficiency is high; and meanwhile, potential safety hazards to workers are avoided, the welding error is relatively small, and the yield is increased.

The invention relates to the technical field of guard plate welding, and discloses a corrugated guard plate welding tool for an industrial guardrail, the corrugated guard plate welding tool comprises a bottom plate, a first corrugated plate and a second corrugated plate, the upper end of the bottom plate is movably connected with a first supporting plate, one side of the first supporting plate is fixedly connected with a second supporting plate, and the upper end of the second supporting plate is fixedly connected with a third corrugated baffle; the first corrugated plate is movably connected between the third corrugated baffle and the first supporting plate, a fixing assembly is arranged at the upper end of the second supporting plate, a welding mechanism is arranged on one side of the fixing assembly, two sets of symmetrical fixing plates are fixedly connected to the upper end of the bottom plate, and a pushing mechanism is jointly arranged between the two sets of fixing plates. The corrugated plate welding device has the advantages that the movable rod can drive the welding gun to cater to fluctuation of corrugated plates to conduct precise welding, the corrugated plates are adaptively fixed according to different lengths of the corrugated plates, meanwhile, the position of the welding gun can be adjusted, and the welding effect and quality are effectively improved.

The invention is suitable for the technical field of welding devices, and provides a welding device for curved surface framework machining, which comprises a regulation and control robot, an assembly frame, an assembly bottom frame, an assembly top frame, a rotary control mechanism, a fixing frame and a welding gun, and further comprises a touch adjustment mechanism, a visual identification module and a reversing mechanism. According to the using method of the welding device for machining the curved-surface framework, by means of the welding device for machining the curved-surface framework, the welding gun is matched with the regulation and control robot, the assembly frame, the rotary control mechanism, the fixing frame, the touch adjustment mechanism, the visual recognition module and the reversing mechanism; the welding device can continuously and uniformly weld the seam of the framework along the outer contour track of the framework in a circumferential rotation mode, it is ensured that the position and shape of a weld joint meet the welding requirement, a welding gun can flexibly adapt to welding of the straight or curved seam of the framework, meanwhile, the continuity and stability of welding operation are ensured, and the welding efficiency is improved. And stress concentration or structural weakness caused by non-uniform welding is avoided.

The utility model relates to the technical field of vehicle part machining, and discloses an axle small part welding table which comprises a movable positioning mechanism and a part placing mechanism, the movable positioning mechanism comprises a positioning unit and a moving unit, the positioning unit comprises a first mounting platform, and a clamping rotating part is fixedly connected to the first mounting platform; a clamping rotating part is arranged on the first mounting platform in a sliding mode, a jacking part is arranged on the first mounting platform in a sliding mode, the clamping rotating part and the jacking part are oppositely arranged, the clamping rotating part is used for clamping an axle and driving the axle to rotate, the jacking part is used for jacking the axle, the moving unit can drive the first mounting platform to horizontally move, and the workpiece placing mechanism comprises a supporting frame which is detachably connected with a plurality of workpiece placing units. The part placing unit is used for clamping parts and can place the parts on an axle. According to the technical scheme, the workpiece placing units with the fixed positions can be matched through movement and rotation of the axle, the welding efficiency and the positioning precision of parts are improved, and the situation of missing welding can be prevented.

The invention discloses a double-end roller welding device, which relates to the technical field of welding and comprises a base, a guide groove I, a movable seat I, a spline shaft I, an adjustable clamping mechanism II, a spline shaft II, a screw rod II, a movable seat II, a welding gun fixing frame and the like. A first screw and a second screw are driven by a first motor, the distance between roller clamping mechanisms can be easily adjusted according to the length of a roller by means of ingenious cooperation of a movable seat and a guide groove, rollers of different sizes can be accurately matched, a stable foundation is provided for subsequent welding, and the universality and practicability of equipment are greatly improved; the adjustable clamping mechanism is ingenious in design, the third motor drives related parts to be in linkage, the self-centering chuck efficiently and stably clamps the welding pieces, the symmetrical structure of the adjustable clamping mechanism ensures clamping consistency and reliability of the welding pieces at the two ends of the double-end roller, welding errors caused by uneven clamping are effectively reduced, and the welding quality and the product precision are improved.

The present invention provides a welding device for an outdoor advertising machine bracket, belonging to the technical field of bracket welding. It comprises a welding table, mounting plates are arranged on both sides of the top of the welding table, each mounting plate is rotatably connected with a rotating shaft, a connecting plate is fixedly connected to one side of the rotating shaft, a second limiting hole is opened on one of the connecting plates, and a pair of clamping blocks are fixedly connected to one of the mounting plates. The present invention can effectively fix the steel pipe when welding the outdoor advertising machine bracket by setting a fixing component, and the steel pipe and the frame are limitedly fixed by using the fixing component. After the front welding is completed, the rotating component can be used to flip the fixing component, the frame and the steel pipe welded to a part of the frame. When the bracket is large in size, only one welding worker is needed to complete the flipping of the bracket, which reduces the difficulty of operation and improves work efficiency.

The utility model discloses a kind of suitable for shear type lifting machine welding production line, including total feeding station, drum conveying line, first welding station, second welding station, third welding station, total unloading station, total feeding station is transported to the transmission on drum conveying line by shear type lifting machine spare;Through first welding station, the welding of the tooling after feeding is carried out, then is transported to second welding station by drum conveying line;Through second welding station, the welding of the tooling after feeding is formed, then is transported to third welding station by drum conveying line;Through third welding station, the welding of the tooling after feeding is formed, then continues transmission to total unloading station by drum conveying line;Total unloading station is transferred from drum conveying line by the finished product of welding formation.The efficiency and flexibility of welding operation are improved by reasonable station layout and flexible transmission system, adapt to a variety of welding needs, with good market application prospect.

The utility model relates to the technical field of steel structure processing, in particular to an angle-adjustable welding device with a positioning function for steel structure processing, which comprises a shell, a fixed plate arranged on the shell, a movable block connected with the fixed plate, a first threaded rod connected with a first motor, a second motor arranged on a movable frame, an L-shaped plate connected with the second threaded rod, and a positioning block connected with the L-shaped plate. The third motor is connected with a threaded cylinder, and the third threaded rod is connected with a pressing plate. A steel structure is placed on a movable frame, a second motor is started to enable a second threaded rod to rotate, an L-shaped plate drives clamping plates to move oppositely to clamp and fix the two sides of the steel structure, a third motor is started to drive a threaded barrel to rotate to enable a third threaded rod to move downwards, the third threaded rod drives a pressing plate to move downwards to fix the top face of the steel structure, and a first motor is started to drive a first threaded rod to rotate; the movable blocks drive the steel structures on the movable frame to move oppositely, welding operation is conducted after the steel structures reach a certain position, and therefore the steel structures needing to be welded on the two sides can be accurately aligned conveniently, and welding errors are reduced.

The utility model discloses a kind of erecting machines for H-shaped steel, it includes base, the base is fixedly connected with second slide rail, the main movable component of sliding block is movably connected on the second slide rail, the main power component of first hydraulic machine is fixedly connected on the sliding block, the first hydraulic machine top end is fixedly connected with second platform, hollow box for accommodating clamping component is fixedly connected on the second platform side wall, third slide rail is fixedly connected in the hollow box, the main power component of second hydraulic machine is fixedly connected in the hollow box, rotating shaft as the main movable component is fixedly connected on the second hydraulic machine, clamp is movably connected on the rotating shaft, spring is fixedly connected on the clamp, motor is fixedly connected on the base, motor output end is fixedly connected with threaded rod, first platform is movably connected on the threaded rod, electric control magnetic suction block is fixedly connected on the first platform bottom end.

The utility model discloses a pressure vessel finished product saddle welding positioning structure which comprises a base, a positioning plate is arranged on the base, and a saddle is arranged on the positioning plate. Two groups of sliding through grooves are formed in the positioning plate, two groups of moving plates are arranged on the two groups of sliding through grooves in a sliding manner, the two groups of moving plates are symmetrically arranged, and the two groups of moving plates move towards the direction of the saddle at the same time to position the saddle on the positioning plate; the utility model has the beneficial effects that the arc-shaped part of the saddle can be stably and accurately fixed on the positioning plate in the welding process through the two groups of moving plates which are symmetrically arranged and can move towards the direction of the saddle, so that the precision and the stability in the welding process are ensured, the operation flow is simplified by the structural design, and the welding efficiency is improved. The positioning accuracy and the welding efficiency are improved, the welding error is reduced, and the product quality is ensured.

The utility model discloses circuit board double-sided spot welding equipment, which relates to the technical field of circuit board spot welding, and comprises a protective shell, a transmission component is connected onto the protective shell, a feeding component is connected onto one side of the protective shell, a welding component is arranged in the protective shell, and a first extension box and a second extension box are fixedly communicated with two sides of the protective shell. The welding assembly comprises a second electric telescopic rod, the second electric telescopic rod is fixedly connected to the top of the inner wall of the protective shell, a second lead screw is in threaded connection with the second electric telescopic rod, and a connecting plate is fixedly connected to the bottom of the second electric telescopic rod; the bottom of the side, away from the second electric telescopic rod, of the connecting plate is fixedly connected with a second ventilation pipe, the side, away from the connecting plate, of the second ventilation pipe fixedly communicates with a second adsorption block, by using a mold, the problem that in the background technology, the possibility of welding errors or failures is large is solved, and the welding device is simple in structure, convenient to use and practical.

The utility model relates to a line marking tool technology field for welding, and disclose a kind of wheeled welding leg size line marking device, including base and the supporting rod being set on base, the line marking arm being capable of overturning along longitudinal direction relative to base is provided in the top of base, line marking arm is located above supporting rod and can overturn around its axis, and one end of line marking arm is provided with line marking head for marking;The fastener for locking line marking arm is provided at the both sides of supporting rod, one end of fastener is inserted into base by passing through line marking arm and screwing, and the walking wheel for supporting base is provided below base.Line marking arm can rotate around supporting rod axis, realize the longitudinal overturning relative to base, to complete the height adjustment of line marking head at the end of line marking arm, and line marking arm is firmly locked on base by fastener, compared with the mode of the existing line marking pen is raised by cushion block, effectively improve the line marking precision, efficiency and stability.

The utility model discloses a parking pile welding tool and welding equipment which have a shaping function, are accurate in welding and positioning and improve the production efficiency. The parking pile welding tool comprises a tool bottom plate, a front vertical plate and a rear vertical plate are arranged at the front end and the rear end of the tool bottom plate correspondingly, mounting holes are formed in the front vertical plate and the rear vertical plate correspondingly, and the mounting holes are matched with assembling screw holes formed in an upper plate and a base plate of a parking pile. The upper plate and the base plate are fixed to the outer side of the rear vertical plate and the outer side of the front vertical plate through positioning pins correspondingly, a tubular pile of the parking pile is arranged between the upper plate and the base plate in a sleeved mode, and hoop devices are arranged at the front end and the rear end of the tool bottom plate correspondingly. The two hooping devices are used for hooping a pipe pile on the tool bottom plate; the welding equipment comprises a welding manipulator and a positioner located at one end of the welding manipulator, and the tool bottom plate is installed at the upper end of the positioner. The welding tool is applied to the technical field of welding tools.

The utility model relates to the technical field of electronics, in particular to a data line forming structure. According to the technical scheme, the device comprises a conveying frame, a first electric sliding rail, a second electric sliding rail and a second mounting frame, the first mounting frame is fixedly mounted at the front end of the other side of the conveying frame, a fixing frame is fixedly mounted at the top of the first mounting frame, and the first electric sliding rail is fixedly mounted on one side of the top of the fixing frame. Through the combination of various structures, the structure can conveniently realize the rapid and efficient welding of the data line, is more accurate and reliable than the traditional manual welding, improves the production efficiency, reduces the manual operation, reduces the error and loss caused by human factors, can conveniently and accurately limit and fix the position of the data line, and improves the production efficiency. Accurate correspondence of welding points in the welding process is ensured, the welding precision is greatly improved, the risks of welding errors and mismatching are reduced, and the complexity of the welding technology is reduced.

The utility model provides a positioning jig for sheet metal welding, which comprises a welding table, a pedestal and a vertical plate, the vertical plate is arranged on the left side above the welding table, a positioning plate is arranged above the right side surface of the vertical plate, and a turnover motor is arranged above the left side surface of the vertical plate. Compared with the prior art, the sheet metal part overturning device has the following beneficial effects that by arranging the overturning motor, the positioning plate, the positioning electric pole and the positioning clamping plate, the sheet metal part can be conveniently clamped to be fixed in position, and meanwhile the sheet metal part can be conveniently overturned to adjust the welding position; by arranging a linear sliding groove, a driving motor, a center rotating rod, a transverse moving cylinder, a moving bottom plate, a height adjusting rod and a height adjusting supporting plate, the right ends of sheet metal parts with different lengths can be conveniently supported when the sheet metal parts are welded, stable positioning of the sheet metal parts at the welding position can be guaranteed by supporting the right ends of the sheet metal parts, welding errors can be reduced, and the welding efficiency is improved. And the welding precision and consistency are improved.

The utility model relates to the technical field of stepless welding nail and discloses a stepless welding nail kind of nail welding head structure, including work table and platform, the platform front end fixedly connected with fixed plate, the fixed plate front end all is provided with cylinder assembly, the cylinder assembly bottom fixedly connected with insulating plate, the cylinder assembly output fixedly connected with guide rod, the guide rod outer ring fixedly connected with guide block, the guide block top fixedly connected with connecting block, the guide rod bottom fixedly connected with welding head, the platform top rear end fixedly connected with distribution box. In the utility model, different welding heads can be adapted to different models of stepless welding nails, the storage box can also store the same model or different model welding nails, and the welding distance of multiple welding heads can be adjusted through the controller, different plates can be welded, the adaptability of the equipment to different welding requirements is greatly improved, and the use scene is expanded.

The invention provides an outdoor advertising machine support welding device, and belongs to the technical field of support welding. Comprising a welding table, mounting plates are arranged on the two sides of the top of the welding table, each mounting plate is rotationally connected with a rotating shaft, one side of each rotating shaft is fixedly connected with a connecting plate, one connecting plate is provided with a second limiting hole, and one mounting plate is fixedly connected with a pair of clamping blocks. By arranging the fixing assembly, when the outdoor advertising machine support is welded, a steel pipe can be effectively fixed, the fixing assembly is used for limiting and fixing the steel pipe and the frame, after front face welding is completed, the rotating assembly can be used for overturning the fixing assembly, the frame and the part, welded to the frame, of the steel pipe, and when the size of the support is large, the rotating assembly can be used for rotating the fixing assembly. Only one welding worker is needed to turn over the support, so that the operation difficulty is reduced, and the working efficiency is improved.

The utility model belongs to the technical field of engineering machinery, and discloses a movable arm oil pipe positioning block assembly tool which comprises a main frame body, a positioning seat and a limiting assembly. The main frame body comprises two main side plates which are arranged in a spaced mode in the first direction, and through holes corresponding to the hinge holes are formed in the two main side plates; the positioning seat is fixedly arranged on the two main side plates; the limiting assembly is used for fixing the main frame body to the two hinged plates. The limiting assembly comprises two limiting plates arranged between the two main side plates at intervals in the first direction, and positioning bosses are arranged on the side faces, facing the two main side plates, of the two limiting plates correspondingly. When the movable arm oil pipe positioning block assembling tool is used, the positioning bosses on the two limiting plates are inserted into the through holes in the two main side plates correspondingly and are inserted into the hinge holes in the two hinge plates correspondingly, the positioning base can abut against the positioning inclined faces of the two hinge plates, the positioning block is positioned through the positioning base, and the positioning block is fixed through the positioning base. And therefore, the positioning blocks can be accurately welded on the corresponding hinged plates.

The utility model relates to the technical field of automobile backrest machining, in particular to a backrest side plate assembly welding tool which comprises supporting legs, a mounting plate is fixedly mounted on the supporting legs, a plurality of first supporting blocks are fixedly mounted on the mounting plate, a supporting column is fixedly mounted at the upper end of the mounting plate, and a plurality of second supporting blocks are fixedly mounted on the supporting column. A backrest side plate body is arranged on the first supporting block and the supporting column, a clamping assembly is arranged on the mounting plate, a stabilizing assembly is arranged in the middle of the mounting plate, and two sets of fixing assemblies are arranged on the side, away from the clamping assembly, of the upper end of the mounting plate. The backrest side plate body can be fixed in multiple directions, the stability of the backrest side plate body in the machining process is improved, the situation that the backrest side plate body is scrapped due to deviation in the welding process is avoided, the welding error is reduced, the welding quality is improved, and the practicability is improved.

The invention discloses an automatic welding device for automobile bodies, relates to the technical field of body welding, and aims to solve the technical problem of low welding efficiency of positioning pins of non-load-bearing body beams. The device comprises a welding platform. The multifunctional body clamping mechanism of the invention can adjust the clamping member to a rectangular body tube clamping state or a circular body tube clamping state through an adjusting member, so as to adapt to the common shape of the non-load-bearing body beams at this stage, enhance the stability of the moving process and prevent shaking during the welding process. The device also provides a clamping and grinding integrated mechanism on the positioning and calibration mechanism, flexibly calibrates the specific welding position of the positioning pin through the positioning and calibration mechanism, and then keeps the positioning pin stable during welding through a fixing component. The device also processes the welds and weld nodules generated after welding through a grinding component, so as to solve the problems of frequent switching, complicated operation, unstable welding quality, etc. in the existing welding process, and provide strong support for the manufacture of non-load-bearing bodies.

The present invention discloses a welding auxiliary device, which is applied to the welding of the pole ear and the pole piece of a soft-pack battery cell. The welding auxiliary device includes a first fixing part and a second fixing part, wherein the first fixing part is used to fix the pole piece, and the second fixing part is used to fix the pole ear. The welding auxiliary device also includes a positioning structure, wherein the first fixing part and the second fixing part are assembled together through the positioning structure, and the welding positioning of the pole piece and the pole ear is realized through the positioning structure. The welding auxiliary device can ensure that the pole ear and the pole piece are aligned during welding, so that each battery cell welding point is consistent. The welding auxiliary device is easy to operate, reduces the welding error between the pole piece and the pole ear, can well ensure that the second welding point is not easy to crack, protects the pole piece from being damaged during the welding process, greatly improves the welding quality, and ensures the welding effect.

The invention relates to the technical field of industry, in particular to a multi-station laser welding mechanism capable of being operated efficiently, and solves the problem that in the prior art, an existing double-station laser welding machine usually lacks a shifting structure capable of rapidly replacing products to be welded. Due to the lack of the structure, in the welding process, after a group of products are welded, an operator needs to spend more time and effort to replace a new product to be welded. The problems that the non-value-added time in the production process is prolonged, the effective utilization rate of equipment is reduced, the labor intensity of operators is increased, and the overall production efficiency is affected are solved. A multi-station laser welding mechanism capable of being operated efficiently comprises a bottom bin and a rotating column. And a mounting cavity penetrating through the rotating column is formed in one side of the rotating column. By optimizing the design and improving the structure, the overall efficiency and flexibility of the production line are improved, the labor intensity of operators is reduced, and the welding quality and effect are improved.

A kind of positioning tool for tunnel initial support reinforcement, including two connecting sliding pipes and two vertical main pipes, two connecting sliding pipes are connected to the connecting plate of left and right sides of tunnel steel arch respectively, the upper end of two vertical main pipes is connected to two connecting sliding pipes respectively, multiple positioning branch pipes are arranged at the outer side of vertical main pipe at intervals, transverse reinforcement is placed on the upper side of two positioning branch pipes, horizontal connecting plate is connected to the outer side of vertical positioning main pipe, two horizontal connecting plates are connected to each other by first connecting piece, multiple clamping plates are arranged at the length direction of one side of horizontal connecting plate at intervals, longitudinal reinforcement is inserted into clamping plate.The design fixes multiple transverse reinforcement by positioning branch pipe, simultaneously, multiple longitudinal reinforcement is fixed by clamping plate, since the distance of each positioning branch pipe and clamping plate is set in advance, the spacing between each transverse reinforcement and each longitudinal reinforcement is fixed, so that the welding error of reinforcement mesh sheet is smaller.

The invention discloses a sports equipment welding device, and belongs to the field of welding devices.The sports equipment welding device comprises a workbench, a rotating sleeve is fixedly connected to the outer surface of the upper end of the workbench, a movable rod is rotationally connected to the inner surface of the rotating sleeve, and a swing assembly is arranged on the outer surface of the movable rod; the swing assembly comprises a movable part and a positioning part, the movable part comprises a cavity formed in the outer surface of the lower end of the workbench in an embedded mode, and a sliding rod is fixedly connected to the inner surface of the cavity. According to the welding device, by arranging the swing assembly, a movable rod drives workpieces to swing through a fixing sleeve, then the included angle between the two sets of workpieces can be flexibly adjusted, the operation convenience of the welding device is effectively improved, a pointing plate is matched with scale marks to observe and measure the rotation angle of the movable rod, and the practicability is high. Therefore, the rotating precision of the movable rod can be effectively improved, and the welding quality of the sports equipment can be further improved by improving the assembly precision of the included angle of the workpiece.

The positioning device for ship deck welding is applied to the technical field of welding positioning and comprises a bottom plate, a pair of supporting seats and a motor are fixedly connected to the upper end face of the bottom plate, rotating shafts are rotatably connected to the interiors of the supporting seats, and the two ends of each rotating shaft extend to the outer sides of the supporting seats. One ends of the pair of rotating shafts are fixedly connected with transmission assemblies, through mutual cooperation of the pair of transmission assemblies and the pair of fixing assemblies, clamping and fixing of decks of different sizes are achieved, the stability during welding is improved, and after single-face welding of the decks is completed, the welding efficiency is improved. When the deck is welded, the rotating shaft can drive the transmission assembly and the fixing assembly to rotate through the motor, overturning of the deck is achieved, and then double-face welding work can be conducted on the deck under the condition that the deck does not need to be disassembled.

The invention relates to the technical field of diode welding devices, and discloses a photovoltaic junction box diode welding device which comprises a mounting table, a baffle is arranged on the surface of the mounting table, a mounting plate is arranged on the side portion of the baffle, an air cylinder body is arranged on the side portion of the mounting plate, and first clamping assemblies are arranged on the surface of the mounting table. A second clamping assembly is arranged on the side portion of the first clamping assembly, and the first clamping assembly and the second clamping assembly are used in cooperation. Through the arrangement of a first clamping assembly, a photovoltaic junction box is placed between two limiting plates and an extrusion plate, the extrusion plate extrudes a telescopic column, a piston disc in the telescopic column slides in a fixing barrel, a photovoltaic junction box shell is clamped through bounce of a reset spring, an air cylinder is started, the air cylinder drives a welding head to move downwards, then a sliding plate is manually adjusted, and the photovoltaic junction box shell is welded. And after the junction box is fixed, the positions of the diode and the wire can be accurately aligned, so that the welding error is reduced, and the quality and the consistency of each welding point are ensured.

The present invention relates to the technical field of reinforcing ribs for a new energy battery case, and in particular to a reinforcing rib welding tool for a new energy battery case and a welding process thereof, comprising a supporting platform, a supporting assembly being arranged on the supporting platform, reinforcing ribs being arranged on the supporting assembly, and the supporting assembly being used to bear the reinforcing ribs; a clamping assembly being arranged around the reinforcing ribs, and the clamping assembly being used to clamp the reinforcing ribs to prevent the reinforcing ribs from moving and deforming during welding; a plurality of through holes being evenly arranged on the reinforcing ribs, and a positioning assembly being arranged through the through holes, and the positioning assembly being used to accurately position the reinforcing ribs during welding; and the reinforcing ribs are conducive to overall support of the slender beam frame structure of the reinforcing ribs, in particular, stable support is provided around the joints and corners, thereby reducing welding errors and improving welding accuracy and welding efficiency.

The utility model discloses an electric welding positioning device for mould manufacturing, which comprises an electric welding assembly, the electric welding assembly comprises a workbench, the bottom end of the workbench is provided with an adjusting assembly, the adjusting assembly comprises a working base and a driving base fixedly installed at the bottom end of the working base, and the interior of the working base is rotatably connected with a rotating rod; when a worker needs to carry out electric welding on a mold, the mold can be fixed to the top end of the workbench through the multiple sets of insertion fixing grooves in the top end of the workbench, the situation that the mold deviates during electric welding, and consequently electric welding errors are caused is reduced, and then the mold is fixed according to the height of the mold. The fastening screws are pulled out of the fastening fixing grooves in the two ends of the main shaft and the two ends of the adjusting cylinder, limitation of the main shaft and the adjusting cylinder is released, then the adjusting cylinder is pulled to the needed electric welding height, and the electric welding height can be freely adjusted according to the height of a mold through the main shaft, the adjusting cylinder, the fastening screws and the fastening fixing grooves. And the functionality and flexibility of electric welding are improved.