35 results about "Weld quality assurance" patented technology

The utility model discloses a main-grid-free back contact battery string and a photovoltaic assembly, the main-grid-free back contact battery string comprises a plurality of back contact battery pieces arranged along a first direction, and the back surface of each back contact battery piece is provided with first fine grids and second fine grids which are alternately arranged along the first direction; the first welding strips and the second welding strips are alternately arranged in the second direction; wherein for the same back contact battery piece, the first welding strip is electrically connected with the first fine grid, and is insulated from the second fine grid; the second welding strip is insulated from the first fine grid and is electrically connected with the second fine grid; welding layers are arranged at the contact positions of the first fine grid and the first welding strip and the contact positions of the second fine grid and the second welding strip; the welding layer comprises a welding metal layer and a bonding glue layer, and the bonding glue layer covers the welding metal layer. According to the utility model, the welding quality of the welding strip can be improved, and the connection stability and reliability of the welding strip and the fine grid are ensured.

The utility model discloses a soldering flux coating mechanism, a battery piece feeding device and series welding equipment, the soldering flux coating mechanism is used for coating soldering flux to a welding point on the surface of a battery piece before a welding strip is laid on the battery piece, and the welding point is used for being welded to the welding strip; the scaling powder coating mechanism comprises a lifting module and a coating pen assembly. The coating pen assembly is configured to be driven by the lifting module to descend so as to coat soldering flux on a welding point on a battery piece below the coating pen assembly, and is driven by the lifting module to ascend and reset after coating is finished; according to the application, the soldering flux can be coated on the welding points on the battery piece through the lifting of the coating pen assembly before the welding strip is laid on the battery piece, so that the volatilization loss caused by the heating of the soldering flux on the welding strip before the battery piece which is laid and stacked with the welding strip subsequently enters a welding area can be made up; therefore, the influence on the welding quality of the welding strip and the battery piece due to the heat loss of the soldering flux can be avoided, and the welding reliability of the welding strip and the battery piece is ensured.

The application provides a post-poured strip water stop fish scale mesh welding support system and a construction method, which comprises a main frame base, a first rectangular frame and a second rectangular frame arranged at intervals and fixed on the top of the main frame base; a top height adjusting mechanism for supporting the fish scale mesh is installed on the top of the first rectangular frame; a clamping mechanism for clamping and fixing the water stop steel plate is arranged at the interval between the first rectangular frame and the second rectangular frame; a bottom height adjusting mechanism is installed at the bottom end of the main frame base; and a lateral adjusting mechanism is installed on the side surface of the main frame base. The system can effectively accelerate the post-poured strip water stop fish scale mesh welding construction speed, improve the welding quality, ensure the construction effect to be neat and vertical, and improve the construction efficiency.

The utility model relates to the field of parts of connecting devices, in particular to a conducting bar, a plug and a quick-charging connector. The conducting bar, the plug and the quick-charging connector are used for solving the problem that the welding quality of the conducting bar and a copper ring is difficult to guarantee because the thickness of the conducting bar is large when the conducting bar and the copper ring are welded in the prior art. The conducting bar comprises a bar body, the end part of the bar body is provided with a connecting hole for a bolt to pass through, and the connecting hole of one surface of the bar body facing a socket terminal is provided with a sinking groove which can be used for placing a copper ring part and is lower than the axial length of the copper ring part. After the copper ring part is placed in the sinking groove, subsequent ultrasonic welding is carried out, at the moment, the distance from the other side of the conducting bar to the welding face of the conducting bar and the copper ring part is reduced, the distance from a welding head on one side of the conducting bar to the welding face is also reduced, the welding thickness is reduced, and the welding quality of the copper ring part and the conducting bar can be improved; and the welding reliability of the two is ensured.

The utility model relates to the technical field of machine manufacturing, in particular to a universal tool for welding a fork connecting rod of a forklift. The utility model provides a universal tool for welding a fork connecting rod of a forklift. The tool comprises a bottom plate, and the top of the bottom plate is slidably connected with a shaft sleeve positioning support, a first square tube limiting module, a second square tube limiting module and a tail end positioning support from left to right. Positioning grooves are formed in the two sides of the top of the bottom plate and matched with the limiting blocks and the sliding blocks at the bottom of the tail end positioning support to achieve sliding connection. A U-shaped groove is formed in the bottom plate, and fixing holes are formed in all the components and located over the U-shaped groove. The right side of the tail end positioning support is provided with a limiting groove and a nut limiting step pin, and the upper end of the tail end positioning support is provided with a threaded hole connected with a clamping bolt. The universal tool has the advantages that the space is saved, the cost is reduced, the welding quality is improved, the size and shape consistency of the connecting rod is ensured, and the production efficiency is improved.

The invention discloses a method for controlling welding deformation of a vacuum box, which comprises the following steps of: performing stress relief treatment on a plate, putting the plate on a tool clamp for pre-tightening and fixing, and then welding by adopting a welding sequence of combining symmetrical welding and segmented skip welding, a non-contact laser measuring instrument is adopted for monitoring welding deformation of the vacuum box body in real time, welding process parameters or a tool clamp are adjusted in time, after welding is completed, overall stress relief annealing treatment is conducted on the vacuum box body, then size detection is conducted, and existing tiny deformation is corrected through a mechanical shaping or hydraulic shaping method. According to the welding deformation control method for the vacuum box body, influence factors of welding deformation are reduced from the source, the welding quality is improved, the size precision of the vacuum box body in the welding process is ensured, the size precision and the use performance of the vacuum box body are remarkably improved, the manufacturing requirement of the high-precision vacuum box body is met, and the production cost is reduced. Good economic benefits and application prospects are realized.

The invention provides battery welding equipment, and relates to the technical field of battery manufacturing. The battery welding equipment comprises a conveying device, a fixing device and a welding device. The conveying device is used for conveying the jig to the fixing device. The fixing device comprises a plurality of installation stations arranged at intervals and a plurality of press-fitting structures arranged at intervals, the number of the press-fitting structures is equal to that of the installation stations, the press-fitting structures and the installation stations are in one-to-one correspondence, the press-fitting structures are used for pressing the batteries to the jig, and the fixing device can drive the jig to move to the welding position. The welding device is fixedly mounted on the side, away from the mounting station, of the press-fitting structure. The fixing device further comprises a plurality of dust collecting structures arranged at intervals, the number of the dust collecting structures is equal to that of the mounting stations, the dust collecting structures and the mounting stations are in one-to-one correspondence, and the dust collecting structures are used for collecting welding smoke generated in the battery welding process. According to the battery welding equipment provided by the embodiment of the invention, the collection efficiency of welding smoke dust can be improved, the welding quality of the battery is improved, and the welding yield of the battery is ensured.

The invention relates to the technical field of welding detection, and provides a photovoltaic module junction box welding quality detection device and method. Comprising a detection bench which is provided with a detection station; the conveying device is arranged on one side of the detection table and is used for conveying the photovoltaic module to a detection station; the positioning device is arranged on the detection table and is used for positioning the photovoltaic module at a preset detection position; the testing device comprises a driving piece and a probe mechanism, and the driving piece drives the probe mechanism to move so as to make contact with electric contacts at the two ends of the diode in the junction box; the pulse power supply is used for applying pulse current equal to the short-circuit current of the photovoltaic module STC to the diode; and the judging mechanism is used for obtaining the forward voltage V < measurement > and the temperature T < measurement > of the diode, obtaining the voltage drop V < setting > corresponding to the temperature T < measurement > through the fitting curve, and judging that the welding quality is qualified when the forward voltage V < measurement > is smaller than or equal to 1.1 V < setting >. And the welding quality is judged through the pulse voltage drop test, so that the detection speed is ensured, and the accuracy is improved.

The invention discloses a large-tonnage vehicle frame machining process and device, and relates to the technical field of vehicle frame machining, the large-tonnage vehicle frame machining device comprises a bearing frame and a vehicle frame part, the top of the bearing frame is rotationally connected with a supporting frame, the top of the supporting frame is provided with a placing frame, and the vehicle frame part is installed on the vehicle frame part; control assemblies used for adjusting the welding angle of the frame part are arranged on the two sides of the supporting frame. According to the large-tonnage frame machining process and the large-tonnage frame machining device, the welding angle of the frame part is accurately controlled, and the angle is kept stable in the welding process, so that the deformation of the frame part caused by non-uniform distribution of thermal stress in the welding process can be effectively reduced; the uniform welding angle and the stable welding position are beneficial to more uniform distribution of heat on the frame part, and the risks of local overheating and deformation are reduced, so that the welding quality is improved, and the size precision and the shape precision of the frame part are ensured.

The utility model discloses a metal and carbon fiber thermoplastic composite material connecting structure, a fixed loading table and welding equipment. The connection structure of the metal and the carbon fiber thermoplastic composite material comprises a metal connection strengthening structure, a metal plate, a carbon fiber thermoplastic composite material plate, a Z-shaped structure, a positioning step, a first welding surface, a second welding surface, a metal plate welding surface, a first area and a second area, the second welding face is connected with the first face of the carbon fiber thermoplastic composite material plate in a welded mode, and the second area is connected with the second face of the carbon fiber thermoplastic composite material plate in a welded mode. The fixed loading platform comprises an upper fixed loading platform and a lower fixed loading platform; the welding equipment comprises a fixed loading table, laser welding equipment and a load applying mechanism. According to the utility model, the connection strength, stability and reliability of the metal and the carbon fiber thermoplastic composite material are improved, the welding accuracy and the welding quality are improved, and the performance consistency of the connector is ensured.

The invention provides a welding part, a battery, electric equipment and a welding method. At least one welding wire is formed on the welding piece, the welding wire comprises at least one linear welding wire and at least one curved welding wire, and the linear welding wire and the curved welding wire are sequentially connected so that the welding wire can gradually extend in one direction; the welding part is used for being welded with a to-be-connected part, the weld penetration depth of the welding part of the welding part and the to-be-connected part is H1, the thickness of the welding part is H2, and H1 / H2 is larger than or equal to 1.1 and smaller than or equal to 3. According to the welding part, the length of the welding wire can be effectively increased, the welding stability and the welding quality of the welding part and other parts can be improved, the problem that accumulated heat at an intersection point is too high due to the fact that a single welding wire has the intersection point can be solved, and the welding stability and the welding quality are guaranteed. The connecting stability of the welding piece and the to-be-connected piece is guaranteed, meanwhile, the to-be-connected piece can be prevented from being welded through due to the fact that the weld penetration depth is too large, and the welding quality is guaranteed.

The invention discloses an abrasion detection and repair construction method for a shield cutter head below a river channel, which comprises the following steps of: S1, selecting a stop point to stop a shield machine, and constructing a water stop ring in a hole; s2, opening a bin to check the abrasion conditions of a tunnel face and a cutter head of the shield tunneling machine; s3, the operation pilot tunnel is constructed according to construction requirements; s4, measuring the abrasion loss and the abrasion shape of the cutterhead in the operation pilot tunnel; and S5, the cutter head is repaired in the operation pilot tunnel. According to the method, the excavation efficiency of the construction groove hole is improved, the construction speed is high, the influence on the construction period is reduced, the construction cost is low, the construction difficulty is small, the construction safety is better guaranteed, the cutter head abrasion detection efficiency and the cutter head repair welding quality are improved, and the use reliability of the cutter head structure is guaranteed.

The utility model discloses a novel motor leading-out wire terminal automatic welding squaring machine, which relates to the technical field of automatic welding squaring machines, and comprises a bottom frame assembly, a table top moving assembly, a machine head assembly, an aluminum profile outer cover assembly and a positioning tool assembly, the table top moving assembly and the machine head assembly are arranged above the bottom frame assembly, and the positioning tool assembly is arranged above the table top moving assembly. The novel automatic welding squaring machine for the motor leading-out wire terminal is characterized in that the machine head assembly is fixed to the machine head assembly, the aluminum profile outer cover assembly is fixed to the machine head assembly, the positioning tool assembly is placed on the table top movement assembly after a product is installed, and preferably, the machine head assembly comprises a machine head installation bottom plate. By means of the squaring assembly in the machine head assembly, the left-right size of the welding position can be guaranteed, the welding position is more accurate, the welding quality is improved, the stability and reliability of connection between the motor leading-out wire terminal and other parts are guaranteed, and the problems of poor contact, resistance increase and the like caused by welding position deviation are solved.

The invention discloses a water turbine runner welding device which comprises a lifting set, a welding set and a welding set, the lifting set is provided with an outer clamping claw capable of being used for grabbing a runner body, and the lifting set can conduct swing lifting action; the rotating set and the lifting set are oppositely arranged, the rotating set is provided with an inner clamping jaw used for clamping and fixing the rotating wheel body, and the inner clamping jaw can rotate; the grabbing and positioning set is arranged above the lifting set and the rotating set, the grabbing and positioning set is provided with a grabbing block capable of horizontally sliding, a first electromagnetic attraction block used for attracting the runner blades is arranged in the grabbing block, and a welding set is integrated on the grabbing block; and the transferring set is arranged below the grabbing and positioning set, the transferring set is provided with a rotatable conveying belt, and the conveying belt is provided with a plurality of positioning blocks used for transferring the runner blades. The automatic welding device has the beneficial effects that the automation degree is high, welding operation is convenient and simple, the welding quality is improved, and the product quality is guaranteed.

The utility model discloses a new energy automobile filter copper bar welding positioning tool which comprises a positioning tool block, the positioning tool block comprises a front installation table and a rear installation table, the front installation table is provided with an installation top face, and the installation top face is fixedly connected with an installation boss; a first limiting block is fixedly connected to the front end of the left side of the mounting top surface; a first mounting part for mounting the second horizontal section is arranged between the first limiting block and the mounting boss; the front surface of the front mounting table is fixedly connected with a second limiting block through a bolt; a second mounting part for mounting a third horizontal section is arranged between the second limiting block and the mounting boss; a third limiting block is fixedly connected to the right side of the rear end of the upper surface of the mounting boss, a pin positioning block is fixedly connected into the rear mounting table through a bolt, and a positioning groove is formed in the upper surface of the pin positioning block. According to the utility model, the copper bar and the pin can be accurately positioned, and the accuracy of the welding position of the pin is ensured, so that the welding quality is improved, and the performance stability of the filter copper bar is ensured.

The invention provides a fusion depth detection method and system of a radiation shielding structure and a fusion device, and relates to the technical field of fusion device manufacturing, a supporting column sequentially penetrates through a plurality of partition plates, each partition plate is connected with the supporting column in a welded mode, and the fusion depth detection method comprises the steps that a detection probe is installed on the supporting column; the detection probe is controlled to emit detection ultrasonic waves towards the welding positions of the partition plates and the supporting columns; the depth of the upper surface and the depth of the lower surface of the welding seam corresponding to each partition plate are obtained; and according to the depth of the upper surface and the depth of the lower surface, the penetration depth of the welding seam corresponding to each partition plate is obtained. According to the fusion depth detection method of the radiation shielding structure, the depth of the upper surface and the depth of the lower surface of the welding seam corresponding to each partition plate are obtained through the detection probe so as to obtain the fusion depth of the welding seam corresponding to each partition plate, the accuracy of the detection result can be improved, operation is easy, the welding quality can be detected, the welding reliability is guaranteed, and the detection efficiency is improved. The use reliability of the radiation shielding structure is improved.

The utility model discloses a protection device for a gas shielded welding wire conveying pipe, and relates to the technical field of conveying pipe protection devices. The clamping device comprises a bottom plate and two first protective shells, a clamping mechanism is arranged on the bottom plate, and the clamping mechanism comprises a second protective shell fixedly connected between the two first protective shells. According to the welding wire conveying device, stable and adaptive clamping environments can be provided for welding wire conveying pipes of different sizes within a certain range through the clamping mechanism, shaking and displacement of the conveying pipes are effectively avoided, it is ensured that the conveying pipes are always kept at the accurate positions in the brazing or desoldering process, the stability and accuracy of welding wire conveying are greatly improved, and the welding wire conveying efficiency is improved. Therefore, the welding wire can be accurately conveyed to a welding area at a constant speed, the problems of unsmooth conveying, blockage and the like are reduced, the damage risk of the welding wire is reduced, the performance stability of the welding wire is kept, the welding quality can be improved, it is guaranteed that welding spots are uniform and firm, welding wire waste caused by abnormal conveying can be reduced, and the production efficiency and economical efficiency are improved.

The application discloses integrated stove with windproof pot support, including body and stove table arranged on the body, pot support is placed on the stove table, pot support includes support bottom ring and support foot, support foot is located above support bottom ring, windproof plate is fixedly connected between two adjacent support feet. The manufacturing method of the windproof pot support is as follows: (1) part processing; (2) part assembly. The windproof plate of the application is located in the front side of the support bottom ring, which can protect the knob in the front side of the stove table, avoid the influence of high temperature on the knob, and the windproof plate also has a certain energy gathering effect, reduces the influence of environmental factors on the combustion condition, and reduces the heat radiation of combustion on the environment; in the welding process of the pot support, auxiliary positioning welding is carried out through the auxiliary table, so that the parts are accurately positioned, the relative movement between the parts in the welding process is avoided, the actual welding precision and welding quality are effectively improved, and the structural stability of the pot support after welding processing is ensured.

The invention relates to the technical field of welding devices, in particular to a metal plate multi-station welding table which comprises a welding table body, welding equipment, a station plate and a driving motor, and further comprises an adjusting assembly, a fixing assembly, a limiting assembly, a transmission assembly, a swing assembly and a cleaning assembly, the welding equipment is installed on the rear portion of the top of the welding table body, the adjusting assembly is installed on the top of the welding table body and located in front of the welding equipment, the driving motor is installed at the bottom of the adjusting assembly, and the station plates are installed on the top of the adjusting assembly in an annular array mode. The L-shaped plate, the rib plate and the limiting assembly are all installed on the top of the station plate, and the L-shaped plate and the rib plate are installed on the inner side of the limiting assembly. Through the arrangement of the adjusting assembly, the transmission assembly and the fixing assembly, the welding quality is improved, and the equipment fixing effect is improved on the premise that the feeding and discharging efficiency of workers is guaranteed.

The present invention relates to the field of welding equipment, and specifically to a multi-station simultaneous welding equipment, which includes a welding base. A plurality of wire pipes are fixedly installed on the welding base. A connecting wire passing through the wire pipes is arranged inside the welding base. A clamping plate is installed on one side of the welding base, and a welding box and a placement rack are arranged on one side of the welding base. In the present invention, during the process of the clamping plates separating from each other, the welding box and the placement rack are driven by a pushing component to move continuously closer to the wire pipes on one side. At the same time, during the moving process, the welding box and the placement rack are driven to separate from each other. After moving to a position close to the wire pipes, the welding box and the placement rack are closed together, and the connecting wire in the middle is clamped through the arc-shaped groove and the placement groove, so as to avoid the deviation of the connecting wire before or during welding, ensure the welding quality of the product, and guarantee the overall service life of the product after production.

The utility model belongs to the technical field of bar welding, and particularly relates to a positioning adjusting mechanism which comprises a base plate, a lifting assembly, a transverse moving assembly and a clamping assembly, the lifting assembly comprises a lifting plate, a lifting air cylinder and a guide assembly, one side of the lifting plate is connected with the transverse moving assembly, and the transverse moving assembly is used for driving the clamping assembly to move front and back; the lifting air cylinder is in transmission connection with the lifting plate, a guide assembly is installed between the lifting plate and the base plate, a clamping assembly is installed on the lifting plate, and the clamping assembly is used for clamping a workpiece to be welded so as to position the workpiece to be welded; the automatic feeding device can be compatible with automatic feeding and automatic centering, clamping and feeding of bar materials or bar sheet materials with different sizes to a welding position, the welding consistency and the welding quality of products are improved, high-precision discharging is guaranteed, position adjustment is carried out at any time in the welding process, and the production efficiency and the safety are improved.

The application discloses a shield cutter disc wear detection and repair construction method under a river channel, and steps are as follows: S1, selecting a shutdown point to stop the shield machine, and preparing for the construction of a water stop ring in a hole; S2, opening a warehouse to check the wear conditions of a working face and a cutter disc of the shield machine; S3, constructing a working pilot tunnel according to construction requirements; S4, measuring the wear amount and wear shape of the cutter disc in the working pilot tunnel; and S5, repairing the cutter disc in the working pilot tunnel. The method improves the construction trench excavation efficiency, is fast in construction speed, reduces the influence on the construction period, is low in construction cost, is small in construction difficulty, has construction safety guarantee, improves the cutter disc wear detection efficiency and the cutter disc repair welding quality, and guarantees the reliability of the cutter disc structure use.

The invention discloses a metal sheath cable argon arc welding device, which comprises a pay-off rack, a belt pay-off rack, a welding machine, a crawler-type traction machine and a take-up rack, and is characterized in that the welding machine comprises a longitudinal wrapping forming assembly and a welding gun, the longitudinal wrapping forming assembly is used for allowing a metal sheath to pass through and be formed, and the welding gun is used for welding the metal sheath wrapping a wire core into a tubular shape; the welding machine is further provided with a controller, a welding gun adjusting mechanism and a camera used for grabbing the gap position of the metal sheath formed in a longitudinal wrapping mode. The welding gun is installed on the welding machine through the welding gun adjusting mechanism so that a nozzle of the welding gun can rotate in the circumferential direction around the tubular metal sheath through the welding gun adjusting mechanism, and the nozzle of the welding gun can be adjusted to face the gap position of the longitudinally-wrapped metal sheath. According to the invention, automatic following of the direction of the nozzle of the welding gun and the gap position of the metal sheath can be realized, so that intelligent real-time adjustment of the nozzle of the welding gun is realized, the welding quality is ensured, and the wrapping performance of the metal sheath is ensured.

The invention relates to the technical field of wire harness welding, and discloses a convenient-to-change terminal wire harness welding tool, which comprises an equipment body, a wire harness welding device and a wire harness welding device, the supporting table is arranged on the equipment body and is used for supporting a wire harness and a terminal; and the clamping plates are symmetrically arranged on the equipment body and used for clamping a terminal welding gun, and the clamping plates are arranged above the supporting table and used for wire harness welding. After being pushed aside and separated, the wire harness wires can be fully dried by means of hot air blown out of the air outlet and heat of the separation plate, so that the welding quality can be prevented from being affected by moisture, the welding effect is guaranteed, the wire harness wires can be clamped and arranged subsequently, the wire harness wires can be reset and gathered together, the subsequent welding is prevented from being affected, and the welding quality is improved. According to the wire harness wire straightening device, part of the bent wire harness wires which are not located at the air outlet can be straightened, so that the part of the wire harness wires can be located at the air outlet and are fully dried, and the drying effect is improved.

The utility model relates to an automatic welding device for a rigid directly-buried pipe, which comprises an automatic welding trolley, a control assembly, a pipeline clamp, a rotating bearing, a telescopic mechanical arm, a walking wheel, an automatic welding device, an adjustable biting tool and a lifting unit, traveling wheels are arranged at the bottom of the automatic welding trolley, an automatic welding device is arranged at the top of the automatic welding trolley, telescopic mechanical arms are symmetrically arranged on the outer surfaces of the two sides of the automatic welding trolley, adjustable biting tools are arranged at the ends of the telescopic mechanical arms, and pipeline tongs are arranged on the two sides of the adjustable biting tools in the length direction. The utility model has the beneficial effects that the welding quality of the pipeline is effectively controlled, the welding quality of each section of pipeline is ensured, the construction is convenient, and the working efficiency is improved, so that the purposes of saving time, reducing the labor intensity of workers and ensuring the construction quality are achieved.

The application discloses a drilling, spinning and welding integrated machine for a coaxial heat exchanger, which comprises a workbench, a punching mechanism, a spinning mechanism, a welding mechanism and a material transfer mechanism, and the workbench is provided with a first material loading station, a second material loading station, a punching station, a spinning and welding station and a third material loading station; the spinning mechanism can be moved close to the spinning and welding station to neck the outer sleeve pipe to press the inner pipe, then be moved away from the spinning and welding station, then the second rotary material transfer mechanism drives the outer sleeve pipe to drive the inner pipe to rotate synchronously, and the welding mechanism welds the synchronously rotating outer sleeve pipe and inner pipe on the spinning and welding station. When the coaxial heat exchanger is manufactured, the automatic punching, necking and welding of the outer sleeve pipe and the inner pipe can be realized, the outer sleeve pipe and the inner pipe are coaxially distributed and stably synchronously rotated under the action of the first rotary material transfer mechanism and the second rotary material transfer mechanism, the welding quality is guaranteed, and the product quality of the coaxial heat exchanger is guaranteed.

The application provides a fusion depth detection method and system of a radiation shielding structure and a fusion device, and relates to the technical field of fusion device manufacturing technology. Support columns are sequentially arranged in multiple partitions, and each partition is connected to the support column by welding. The fusion depth detection method comprises the following steps: installing a detection probe on the support column; controlling the detection probe to emit detection ultrasonic waves towards the welding position of the multiple partitions and the support column; obtaining the depth of the upper surface and the depth of the lower surface of the welding seam corresponding to each partition; and obtaining the fusion depth of the welding seam corresponding to each partition according to the depth of the upper surface and the depth of the lower surface. The fusion depth detection method of the radiation shielding structure can obtain the depth of the upper surface and the depth of the lower surface of the welding seam corresponding to each partition through the detection probe, so as to obtain the fusion depth of the welding seam corresponding to each partition. The method can improve the accuracy of the detection result, is simple to operate, can check the welding quality, ensures the welding reliability, and improves the use reliability of the radiation shielding structure.

The utility model relates to a welding argon filling protection auxiliary device, and belongs to the technical field of welding tools. The welding argon filling protection auxiliary device comprises a conveying trolley, a conveying rail which is in sliding fit with the conveying trolley and is installed in a stainless steel pipeline, an inflating mechanism and a lifting mechanism which is arranged on the conveying trolley and drives the inflating mechanism to ascend and descend. The inflation mechanism comprises an inflation base fixed to the lifting mechanism, an inflation head arranged at the top of the inflation base, an air conveying pipe arranged on the side wall of the inflation base and communicated with the inflation head and a sealing plug used for sealing the welding back hole, and the other end of the conveying pipe is communicated with a protection air source. The welding device has the effects of improving the welding quality and ensuring the physical and psychological health of operators.

The present application discloses a metal welding device and process for a load-bearing structure of a coal mining machine, relating to the field of metal welding. The device comprises a base, a support platform for supporting the load-bearing structure provided on the base, a plurality of first and second support wheels distributed on the surface of the support platform, the rotation axis directions of the first support wheels and the rotation axis directions of the second support wheels being both horizontal and perpendicular to each other, and all the first support wheels being synchronously raised and lowered on the support platform; a centering assembly for centering the load-bearing structure is also provided on the support platform, a welding gun is provided on the upper side of the base located on the support platform, and a driving assembly for driving the welding gun to move with multiple degrees of freedom is provided on the base; the centering assembly comprises two first clamping plates and two second clamping plates, the two first clamping plates being synchronously slidably provided on the support platform, and the two second clamping plates being synchronously slidably provided on the support platform. The present application helps to improve welding quality and ensure the structural strength of the load-bearing structure.

A welding device of a static contact includes a positioning mechanism, a welding mechanism, a feeding mechanism and a discharging mechanism. The feeding mechanism includes a moving assembly and a clamping assembly which can be driven to open or clamp. The clamping assembly is connected to the moving assembly and is driven by the moving assembly to move between the positioning mechanism and the welding mechanism. The terminal plate and the static contact plate placed on the positioning mechanism are clamped by the clamping assembly and then are driven to the welding mechanism to be welded into a static contact product. The discharging is completed by the discharging mechanism arranged on one side of the welding mechanism. The device further includes a shaping positioning mechanism arranged on one side of the welding mechanism, which is used to shape and position the terminal plate and the static contact plate before welding and to adjust the position of the static contact product after welding to cooperate with the discharging mechanism. The shaping positioning mechanism is arranged to shape and position once before and after welding, which is beneficial to improve the welding quality and ensure the reliability and safety of the product.