276 results about "Stud welding" patented technology

The invention discloses a stud welding surface detection method, device and equipment and a product, and the method comprises the steps: judging whether the quality of a stud welding surface is qualified or not according to the intersection condition of a stud and a part; establishing a cylinder intersecting with the surface of the part, obtaining a segmentation surface used for representing the state of the stud welding surface, and judging whether the stud welding surface is qualified or not by comparing a preset standard based on the condition of the segmentation surface. The invention discloses a stud welding surface detection method, device and equipment and a product. The stud welding surface detection method, device and equipment have the characteristics of multiple detection dimensions, accurate detection result and greatly improved detection speed, and are very suitable for performing batch automatic detection on the welding surface, needing to be detected, of a product model.

The invention discloses a method, a processor and a system for detecting the welding quality of a stud. The method comprises the following steps: acquiring an image of a target detection area; the obtained target detection area image is input into a pre-trained detection model, and target stud welding information of the target detection area is recognized; respectively comparing the welding information of the identified target stud with corresponding standard stud welding information preset in a detection model; whether the target stud is qualified or not is determined according to the comparison result of the welding information of the target stud and the welding information of the standard stud; and outputting the quality state information of the target stud in the target detection area. The method has the advantages of being low in cost, high in efficiency, large in detection coverage rate, high in accuracy and good in human-to-effect ratio.

The invention provides a stud welding detection method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the tracking recognition processing of a stud welding region in a to-be-detected image based on a template frame, and obtaining a target welding region in the to-be-detected image; calculating a mapping relation matrix between the to-be-detected image and the template image, and mapping and aligning the template frame to a corresponding position of the to-be-detected image based on the mapping relation matrix to obtain a to-be-classified image area after mapping and alignment processing; and performing matching identification processing on the target welding area and the to-be-classified image area to obtain an identification classification result of the to-be-detected image. According to the embodiment of the invention, tracking identification is carried out by using the template frame, so that the target welding area in the to-be-detected image can be accurately positioned, and the accuracy of stud welding area detection is improved; the template frame can be accurately mapped and aligned to the corresponding position of the to-be-detected image; the alignment mode not only improves the processing speed, but also can improve the detection speed of the stud welding area.

The utility model relates to the technical field of universal grippers, and discloses a universal gripper for stud welding without a grounding electrode. Comprising a supporting block, a pressing block, a pressing arm, a cushion block, a lining, a first gasket, a first connecting piece, an SMC speed regulating valve, a second connecting piece, a powerful tightening cylinder, an air cylinder pressing arm, a third connecting piece, a fourth connecting piece, a second gasket, a fifth connecting piece, a sixth connecting piece, an octagonal pipe, a first insulating pin and a second insulating pin. And the first gasket is arranged between the pressing block and the pressing arm. According to the universal hand grab without the grounding electrode, the pressing block material is replaced, so that the space is not occupied; when in use, the pressing blocks on the grippers are better attached to a plate and a pipe, so that the conductivity is increased, the installation space of the grounding electrode is saved, more space is provided for optimizing the track, and the operation is convenient, time-saving and labor-saving.

The invention relates to a top-free supporting structure and method for construction of an ultrahigh-space large-span truss floor support plate, which are characterized in that expansion is carried out on the basis of a stress form that a suspender is used as a suspension cable support, and a supporting and hanging system consisting of three bearing components, namely the suspender, a suspension beam and a supporting leg is formed by combining a unique composition structure and a connection mode of the steel bar truss floor support plate. And after the truss floor support plates are laid and corrected, stud welding is completed, the suspension beams and the supporting legs at the upper end are assembled, then the supporting legs are welded to the structural steel beams at the lap joint positions of the floor support plates, and the large-span truss floor support plates are tied in a suspender connecting mode. A force transmission path of the floor support plate, the suspenders, the suspension beams, the supporting legs and the structural steel beams is formed, the overall construction load is finally transmitted to the structural main steel beams, deformation downwarping and instability caused by the too large span of the floor support plate are resisted, and the purpose that the large-span truss floor support plate is free of back shore is achieved. The problem of temporary supporting of the truss floor support plate under the working condition of coexistence of ultrahigh space and large span is effectively solved.

The invention relates to a welding device (10) with a stud welding head (12) which can be aligned to a component (16) to be welded by means of an adjusting device (14), wherein the adjusting device (14) comprises at least one positioning means (18a-18d) for positioning the stud welding head (12) relative to the component (16), and wherein the at least one positioning means (18a-18d) can be brought into contact with the component (16) for positioning, wherein the adjusting device (14) is designed as an adapter (20) with a base body (22) and with a plurality of positioning means (18a-18d), wherein the respective positioning means (18a-18d) can each be brought into contact with the component (16) for positioning. The invention further relates to a method.

The invention provides a stud welding robot for assembling an insulating plate of an LNG (Liquefied Natural Gas) ship containment system. The bottom end of the posture adjusting device is fixedly connected to the moving device, and the posture adjusting device has freedom degrees in multiple directions; the positioning, polishing and welding integrated device is arranged at the top end of the posture adjusting device; the device comprises a top rack, a grinding and welding device, a distance measuring device, an auxiliary positioning device and an adsorption device, wherein the distance measuring device is used for acquiring an effective operation distance from the tail end of the positioning grinding and welding integrated device to a to-be-operated surface; the auxiliary positioning device is used for acquiring sideline characteristics of a to-be-worked surface; the adsorption device is adsorbed on a to-be-operated surface during operation; and according to the effective operation distance and the sideline characteristics of the to-be-operated face, the posture adjusting device adjusts the polishing and welding device to be perpendicular to the to-be-operated face, and the polishing and welding device is used for executing the operation of polishing and then welding. According to the device, the studs can be automatically ground and welded on the assembly surface of the insulating plate of the LNG ship in batches, and the operation efficiency and the operation safety are improved.

The invention discloses a stud welding quality state automatic judgment method and system, and relates to the field of stud welding, and the stud welding quality state automatic judgment method comprises the steps that a stud lifting curve in the stud welding process is obtained in real time; the stud welding quality is judged according to an enveloping area of the stud lifting curve and a preset standard lifting curve, and a quality judgment result is obtained; wherein the quality judgment result comprises normal or abnormal. According to the method, whether the quality of the stud welding spot is qualified or not is judged by comparing the stud lifting curve obtained in real time in the stud welding process with the enveloping area of the preset standard lifting curve, so that the problem that the stud welding quality is difficult to detect in batches is solved, and the batch and automation degree of detection is improved.

The invention provides a stud welding interference detection method and system. The stud welding interference detection method comprises the following steps: S1, identifying a part, a clamp, a stud and a guide sleeve under a selected imported product node; s2, a first screening value and a second screening value are determined respectively, and welding guns with the radius of welding gun electrode tips not larger than the first screening value and the length of gun bodies not larger than the second screening value in the welding gun database are called for selection; s3, the welding gun selected in the S2 is used for executing pre-interference detection on all the studs on the part one by one; and S4, performing welding gun simulation rotation interference detection on the stud of which the detection result of the pre-interference detection in the S3 is unqualified for verification. According to the invention, the pre-interference checking is carried out through the pre-interference detection, and the welding gun simulation rotation interference detection is carried out for verification only if the pre-interference detection is unqualified, so that the workload is greatly reduced, and the working efficiency of the interference detection is improved.

The utility model discloses a full-automatic stud welding stud automatic feeder which comprises an arraying machine body, a conveying belt, an arrangement mechanism, an adjusting mechanism and a pushing mechanism, the conveying belt is horizontally installed at a discharging port of the arraying machine body, the arrangement mechanism is installed on the conveying belt and used for arranging and arranging welding studs, and the adjusting mechanism is installed on the conveying belt and used for adjusting the welding studs. The adjusting mechanism is installed at the bottom of the discharging port end of the conveying belt and used for adjusting the feeding direction of the welding studs, and the pushing mechanism abuts against a discharging port of the adjusting mechanism and used for feeding the welding studs. The arrangement mechanism is arranged on the conveying belt on the full-automatic stud welding stud automatic feeding machine, so that a material limiting plate on the arrangement mechanism limits the welding studs which are conveyed together in an overlapped mode on the conveying belt, the welding studs are conveyed one by one, meanwhile, an arrangement plate of a triangular structure on the arrangement mechanism is used for arranging the welding studs which are not consistent in arrangement direction, and therefore the welding studs can be conveyed one by one. And unqualified welding studs after arrangement enter the alignment machine body to be aligned and conveyed again.

The present invention provides a method and system for stud welding interference detection, comprising: S1, identifying parts, fixtures, studs, and guide sleeves under a selected imported product node; S2, respectively determining a first screening value and a second screening value, and retrieving a welding gun from a welding gun database whose welding gun electrode tip radius is not greater than the first screening value and whose gun body length is not greater than the second screening value for selection; S3, using the welding gun selected in S2 to perform pre-interference detection on all studs on the part one by one; S4, performing welding gun simulated rotation interference detection on studs for which the pre-interference detection result in S3 is unqualified for verification. The present invention performs pre-interference screening through pre-interference detection, and only performs welding gun simulated rotation interference detection on studs that fail the pre-interference detection for verification, thereby greatly reducing the workload and improving the working efficiency of interference detection.

The invention provides a multi-vehicle stud welding positioning device which comprises a rotating mechanism, the rotating mechanism comprises a base, a front bearing seat is fixedly connected to the front side of the base, a motor is fixedly arranged on the front side of the base, and a driving shaft of the motor penetrates through the front bearing seat and is fixedly connected with a front connecting seat; a rear bearing seat is fixedly connected to the rear side of the base, a rotating shaft penetrates through the rear bearing seat, and a rear connecting seat is fixedly connected to one end, facing the front connecting seat, of the rotating shaft; the welding frame is used for placing a floor assembly; the bottom positioning structure comprises a seventh connecting seat fixedly connected with the welding frame, a fifth guide sleeve fixing seat is fixedly connected to the seventh connecting seat, and the fifth guide sleeve fixing seat is located below the floor assembly. And a seventh stud guide sleeve is arranged on the fifth guide sleeve fixing seat. The problems that deviation is easily generated and the working efficiency is reduced in a traditional manual stud welding positioning lineation mode are solved.

The present invention discloses an automatic stud welding device for a leak-checking robot, which relates to the technical field of industrial welding. It includes an outer housing and an inner rotating cylinder. The outer housing is rotatably connected to the inner rotating cylinder. An inner end cylinder coaxial with the opening of the outer housing is provided at the opening of the outer housing. It further includes a welding assembly. The welding assembly includes a driven internal gear ring rotatably installed on the inner peripheral wall at one end of the inner rotating cylinder. Two pairs of end rods are fixed on the inner peripheral wall of the inner rotating cylinder near the driven internal gear ring. And a sliding frame block is slidably connected to each end rod. A mounting end rod is fixedly connected to the bottom side wall of each sliding frame block. When multiple mounting end rods move towards the stud, the present invention can simultaneously drive the slider to move along the strip-shaped through groove, and use multiple T-shaped rods to pull the corrugated heat-resistant rubber pad, so that the corrugated heat-resistant rubber pad can approach the stud as much as possible, and effectively cover and protect the base material, thereby effectively reducing the influence of welding slag on the surface of the base material.

The utility model discloses a six-axis robot stud welding device, which relates to the technical field of stud welding and comprises a fixing frame, a conveying belt is movably arranged on the fixing frame, a plurality of workpiece bodies are placed on the conveying belt, a first case is arranged below the fixing frame, an adjusting mechanism is arranged on the first case, and the adjusting mechanism comprises a movable component and a turnover component. And a second machine box is arranged below the fixing frame, a positioning assembly is arranged on the second machine box, a third machine box is arranged below the fixing frame, and a robot is fixedly arranged on the third machine box. A workpiece body is placed on the conveying belt, the workpiece body sequentially passes through the movable assembly, the overturning assembly and the positioning assembly, position adjustment and positioning are conducted on the workpiece body, finally, stud welding is conducted on the top of the workpiece body through the robot body, the whole process is fully automatic, investment of labor cost is reduced, precise welding can be achieved, and production efficiency is improved. The requirements of industrial production are met.

The utility model discloses a telescopic stud welding gun, which belongs to the field of stud welding guns, and adopts the technical scheme that the telescopic stud welding gun comprises a body mechanism, the outer end of the body mechanism is movably connected with a positioning mechanism, the rear end of the body mechanism is movably connected with a telescopic mechanism, and the telescopic mechanism comprises an assembly block; the assembling block is located at the rear end of the body mechanism, the outer end of the assembling block is movably connected with a reinforcing block, clamping columns which are symmetrically distributed are installed at the outer end of the reinforcing block, clamping grooves are formed in the outer ends of the clamping columns, and the clamping grooves are located at the inner end of the assembling block; according to the stud welding gun, the clamping columns and the positioning rods are arranged, when the stud welding gun is detached from the telescopic structure, the pair of positioning rods is pulled, fixing limitation of the clamping head and the clamping columns is relieved, at the moment, the clamping columns are taken out of the inner end of the assembling block, and then the stud welding gun body and the telescopic structure can be conveniently detached, and the telescopic structure of the stud welding gun is also convenient to install; and the use convenience of the telescopic stud welding gun is improved.

The utility model relates to a device for preventing mistaken welding of automobile stud positions, which comprises a stud welding tool, a first automobile stud welding component and a second automobile stud welding component. And the shielding mechanism comprises a shielding driving part, a first shielding part and a second shielding part. When stud welding is carried out on a first vehicle model, the second shielding part is driven by the shielding driving part to shield the stud welding part of the second vehicle model, so that the second stud welding part cannot weld studs on a vehicle body of the first vehicle model; and when stud welding is carried out on the second vehicle type, the first shielding part is driven to shield the stud welding part of the first vehicle type, so that the first stud welding part cannot weld studs on the body of the second vehicle type. According to the stud welding tool, it can be effectively ensured that when the stud welding tool is used for welding the studs, wrong vehicle types cannot be welded, so that mistakes are accurately prevented, and the problems that follow-up maintenance is difficult and the quality of the maintained vehicle body is reduced due to the fact that the vehicle body studs are welded mistakenly in the final assembly process are further solved.

The invention discloses a full-automatic intelligent stud welding system, and relates to the technical field of automatic welding equipment. The system comprises a crawler-type movable chassis, a multi-axis mechanical arm, a welding stud welding execution assembly, an automatic welding stud feeding system, an integrated motion control device and a welding power source device. The integrated motion control device cooperatively controls the movement of the chassis and the posture of the mechanical arm based on a coupling kinematics model, adopts a coarse-fine coupling positioning strategy, and eliminates the parking error of the chassis through a visual sensing module and an inverse kinematics solver. The system is further provided with a dynamic following welding algorithm, and relative static welding in a continuous moving state is achieved by generating a compensation motion vector opposite to chassis involved motion. In addition, the system integrates dynamic collision detection based on motor current monitoring and closed-loop feeding sequential control logic. The problems of low positioning precision and poor operation efficiency in large workpiece welding are effectively solved, and high-precision automatic operation in a complex environment is realized.

The application provides a stud welding system and a control method for visualizing and informatizing AC / DC output, wherein a control box assembly is arranged in a stud welding system main body; a programmer is detachably connected to the stud welding system main body and connected with the control box assembly; a heat dissipation air duct is arranged in the stud welding system main body; a transformer assembly is arranged in the heat dissipation air duct and connected with the control box assembly; a front bridge power assembly is arranged in a front compartment formed by the heat dissipation air duct and a front door of the stud welding system main body and connected with the control box assembly; a rear bridge power assembly is arranged in a rear compartment formed by the heat dissipation air duct and a rear door of the stud welding system main body and connected with the control box assembly; and a stud welding gun is connected to the stud welding system main body and connected with the control box assembly. The embodiment of the application realizes the design of front and rear independent electrical installation compartments, blocks the front and rear electromagnetic interference, improves the EMC index, and improves the reliability and durability of the equipment.

The utility model discloses a positioning device for welding a stud on a metal plate and a welding gun used for welding the stud, the welding gun is provided with a welding gun head, the positioning device comprises a positioning clamp corresponding to the design position of the stud on a stamping part, the welding gun is detachably assembled in the positioning clamp, and the positioning clamp is further provided with a positioning mechanism for positioning the positioning clamp and the welding gun. The positioning fixture of the positioning device is in a fixed and relative positioning state with the stamping part, so that relative positioning of the welding gun and the stamping part can be realized through the positioning fixture in the state, and the position accuracy of stud welding is ensured. Relative positioning of the welding gun after connection with the positioning mechanism is achieved through the positioning mechanism, so that relative positioning of the stud and the surface of the stamping part is guaranteed, the position accuracy of stud welding is further improved, and the problems that the stud deviates and is not perpendicular to the surface of the stamping part during manual stud welding at present are solved.

1. The name of the design product: stud welding main machine (HEAS). 2. The use of the design product: for manual welding, semi-automatic welding, stud welding. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a universal gripper for stud welding without a grounding electrode, and belongs to the technical field of welding of automobile part factories. Comprising a transfer base, a supporting block is installed on one side of the transfer base, a rotating assembly is installed on the transfer base, the rotating assembly comprises a first middle plate and a rotating assembly, the first middle plate is driven by power to rotate, the rotating assembly is installed on the first middle plate, and the rotating assembly comprises a second middle plate installed on the first middle plate; a connecting plate is installed on the second middle plate, a base is installed above the connecting plate, and a rotating frame which is driven by power to rotate is installed on the base. According to the universal gripper for stud welding without the grounding electrode, by adjusting the posture of the pressing block, the pressing block can be better attached to a workpiece with a groove or a special-shaped protrusion, the attaching degree of the pressing block and the workpiece is improved, the workpiece is evenly stressed, the problems of unstable clamping and workpiece displacement are reduced, and the follow-up welding precision is guaranteed.

The present invention relates to the field of stud welding technology, specifically a stud welding machine based on the laying of steel truss floor deck, including a cross frame and a stud gun welding machine, the outer surface of the cross frame is provided with a swivel for fixing the stud gun welding machine, the interior of the swivel is slidably connected with a positioning block slidably connected to the cross frame, and one end of the positioning block is fixedly connected to a connecting frame, one end of the connecting frame is fixedly connected to a feeding shell, a batching trough is provided inside the feeding shell, a feeding assembly is provided inside the batching trough, a screw block is slidably connected inside the cross frame, and the bottom of the screw block is slidably connected to the swivel, a driving assembly for driving the screw block to move is provided inside the cross frame, both sides of the cross frame are provided with slide bars for the swivel to slide, and a transmission assembly for driving the slide bar to rotate is provided on the top of the cross frame. Through the design of the feeding assembly, the studs can be automatically pushed from the batching trough into the stud gun welding machine, which greatly reduces the tediousness of manual operation and improves the efficiency of feeding.

An ergonomic method for a composite floor structure with metal decking having ribs and flat sections with openings in the flat sections over the center of the I-beams for fastening and flattening the decking on the I-beams, removing contaminates from the I-beams through the openings to form a clean welding zone and welding studs in the clean welding zones. Tools for fastening, removing contaminates and welding are carried by carts having a bottom frame with rollers and an outrigger that keeps a working end of the tool perpendicular to the composite floor structure. In operation as the carts are rolled over the metal decking the rollers contact the ribs while other rollers extend over and free from contacting the flat sections. The carts have a tool balancer to minimize the effort required of a worker to raise and lower the tool into working position from an upright position.

The utility model discloses a multi-station vehicle body stud welding rapid positioning clamp which comprises a machining table arranged on a bottom plate, a vehicle body plate is placed on the machining table, supporting rods are fixedly connected to the two sides of the top of the bottom plate, and the top ends of the two supporting rods are jointly and fixedly connected with a transverse plate. The two sides of the top of the transverse plate are connected with first sliding rods in a sliding mode through openings formed in the two sides of the top of the transverse plate. According to the multi-station vehicle body stud welding rapid positioning clamp, through cooperation of a first sliding rod, an L-shaped rod, a first inclined block, a second inclined block, a second sliding rod and clamping plates, an electric telescopic rod drives a positioning plate to move downwards, the second inclined block extrudes the first inclined block, and the two clamping plates are promoted to move oppositely; and the clamping plate is used for accurately adjusting the position of the vehicle body plate and clamping and fixing the vehicle body plate, so that the vehicle body plate can quickly and accurately reach a preset welding position.

The stud welding gripper comprises a fixing block, an adjusting mechanism, a limiting mechanism, a mounting mechanism, a mounting groove, an air cylinder, a connecting block, supporting rods, clamping rods, groove holes and clamping plates, the mounting groove is formed in the front end of the fixing block, the air cylinder is arranged in the mounting groove, the connecting block is arranged at the front end of the air cylinder, and the supporting rods are arranged at the upper end and the lower end of the connecting block; clamping plates are arranged at the front ends of the sides, close to each other, of the clamping rods, an adjusting mechanism is arranged at the rear end of the fixing block, a limiting mechanism is arranged in the adjusting mechanism, and a mounting mechanism is arranged at the rear end of the limiting mechanism. The welding fixture has the advantages that the welding fixture has a good fixing effect on stud parts and can be suitable for studs with different diameters, threads of the studs are not prone to being damaged, and meanwhile the angle can be conveniently changed when welding is carried out at different angles after clamping is carried out.

The utility model discloses an automatic stud welding gun for shear nails, and relates to the technical field of automatic stud welding guns. The device comprises a main body frame and a protective cover fixed on one side of the lower end face of the main body frame, and further comprises a first air cylinder body fixed on the lower end face of the main body frame, a driving frame is fixed at the output end of the first air cylinder body, and an adjusting part is fixed at one end of the driving frame; the locking mechanism is arranged on the outer side of the locking plate; the second air cylinder body is connected to the lower end of the protective cover through a bolt, and a limiting clamping piece is fixed to the output end of the second air cylinder body. The limiting sliding plate can slide along the interior of the limiting sliding groove through the micro air cylinder, the position of the shear nail can be locked and limited through the clamping jaw petals and the locking clamping groove, the position of the clamping air cylinder body can be adjusted through the second air cylinder body, the clamping air cylinder body is matched with the clamping air cylinder body, and the clamping jaw petals and the clamping jaw petals can be locked and limited. Ceramic ring bodies of different specifications can be selected for clamping according to different sizes of shear nails, and effective adjustment can be carried out according to different lengths of the shear nails.

The utility model relates to a stud welding quality detection tool, and belongs to the technical field of stud welding. Comprising a detection tool body, the detection tool body is internally provided with a through hole in the height direction, a stud penetrates through the through hole, the side wall of the detection tool body is rotatably connected with an abutting assembly, and the abutting assembly is used for extending into the through hole to abut against and fix the stud. After stud welding operation is completed, the stud is sleeved with the through hole of the detection tool body, then the detection tool body is shaken, and if the stud is driven to shake by shaking of the detection tool body, the stud is separated from a welded base material and falls off, it can be judged that the welding quality of the stud does not reach the standard; if the detection tool body is shaken to drive the stud to shake, the stud is well connected with a welded base material, and the welding quality of the stud can be judged to be qualified.

The utility model relates to the technical field of building construction, and provides steel structure floor bearing plate paving equipment which comprises an embedded part, a rail assembly, a six-axis mechanical arm, an automatic quick change mechanism, a stud welding machine and a spot welding machine. The rail assembly comprises a transverse rail and a longitudinal rail; the embedded part is embedded in the concrete column; the embedded part supports the transverse track; a six-axis mechanical arm, an automatic quick-change mechanism, a stud welding machine and a spot welding machine are borne on the longitudinal track; the automatic quick-change mechanism comprises a support, at least three automatic quick-change discs arranged on the support, a clamping device connected with the automatic quick-change discs, a stud welding gun and a spot welding gun head. The six-axis mechanical arm is installed on the longitudinal rail in a sliding mode, and the tail end of a mechanical hand of the six-axis mechanical arm is connected with the automatic quick-change disc. The six-axis mechanical arm is matched with the clamping device, the stud welding gun and the spot welding gun head in a rail movement mode to achieve on-site paving of the floor support plate, and the problems that existing high-altitude paving of the floor support plate is manual paving, and the efficiency and the automation degree are low are solved.

The utility model discloses a movable stud welding device which is matched with a grabbing robot to complete stud welding work of a machined part and comprises a fixed support fixedly arranged on a machine frame, an automatic stud welding gun mechanism obliquely and fixedly arranged on the upper portion of the fixed support and a middle beam fixed in the middle of the fixed support. The end of the middle beam is hinged to the middle of the movable support, and a stud grabbing head used for grabbing a stud to be welded is arranged at the end of the automatic stud welding gun mechanism. And a first movement air cylinder and a second movement air cylinder are arranged, an upper supporting rod corresponding to the lower supporting block is fixedly arranged at the lower end of the automatic stud welding gun mechanism, and a limiting structure used for preventing the movable support from further rotating is arranged between the middle beam and the movable support. The stud welding device is simple in structure, stud welding work can be rapidly and conveniently carried out through cooperation with a grabbing robot, and in addition, the structure avoiding requirements of different machined parts are met through the full-open state and the half-open state.

The invention provides a detection device and method for detecting stud welding strength, the detection device comprises a connecting rod, a base and a break angle adjusting nut, the connecting rod comprises a connecting rod body, the outer surface of the connecting rod body is provided with an external thread, and the bottom of the connecting rod body is provided with a limiting structure; the connecting rod body is connected with a to-be-detected stud which is vertically welded on the surface of a workpiece through a limiting structure, scales within a certain distance range are arranged on the outer surface of the connecting rod body, and the scales are used for representing the angle of angle breaking; the other end of the connecting rod body penetrates through the base, and the height of the connecting rod body relative to the base is adjustable; the connecting rod is movably sleeved with the angle-breaking adjusting nut through external threads, the base is located below the locking nut, and the angle-breaking adjusting nut is operated to be movably arranged in the length direction of the connecting rod body so as to adjust the relative height of the connecting rod body and the bottom of the base. According to the invention, the problems of inconsistent strength and difficulty in angle recovery during manual detection of the stud welding strength are solved.