269results about How to "Easy to weld" patented technology

A kind of 1000MPa grade pressure steel pipe welding is opened slope device, including chuck fixed component, rotating assembly, angle adjusting assembly and polishing device, wherein: rotating assembly is arranged on chuck fixed component, angle adjusting assembly for adjusting cutting angle is arranged in the inside of rotating assembly, polishing device is arranged in angle adjusting assembly execution end.The chuck fixed component can be fixed concentrically in the circumferential direction of steel pipe by being set, and the cutting assembly can be driven to rotate in the circumferential direction of steel pipe by being set rotating assembly, and then the purpose of opening slope is achieved, so that the opening slope method will make the opening slope surface smooth and neat, not convenient for welding, and the device body is relatively small, easy to carry.And by setting angle adjusting assembly, the angle of opening slope can be adjusted, and the opening slope effect is enhanced.

The application belongs to the technical field of copper-based diamond composite materials, and particularly relates to a diamond copper-based composite material and a preparation method thereof. The preparation method comprises the following steps: mixing modified diamond powder and copper powder by ball milling, and obtaining a diamond copper core material after hot-pressing sintering; activating the diamond copper core material, then magnetron sputtering a Ni / Pr alloy target material onto the upper and lower surfaces of the activated diamond copper core material to form a Ni / Pr composite intermediate layer; vacuum welding copper sheets on the upper and lower surfaces of the Ni / Pr composite intermediate layer to obtain the diamond copper-based composite material. The diamond copper-based composite material prepared by the application has high density, excellent thermal conductivity, low thermal expansion coefficient and is convenient to process.

This utility model provides an auxiliary device for welding automotive parts, belonging to the field of welding auxiliary devices; it includes: a support base, two sets of transport structures mounted on the upper wall of the support base, angle adjustment structures mounted on the upper walls of the two sets of transport structures, material fixing structures mounted on the upper walls of the two sets of angle adjustment structures, and two sets of angle fixing structures mounted on the upper walls of the transport structures; the two sets of transport structures include: a transport screw, a transport guide rod, and a transport platform; the transport screw is mounted on the upper wall of the support base through a support frame, and the transport screw and the support frame are connected by bearings; this utility model, through the angle adjustment structure and fixing structure, can assist in welding two iron automotive flat parts, allowing two iron automotive flat parts with an included angle of less than 180 degrees to be fixed at the designed angle, facilitating the operator to weld the joint of the two parts, thereby improving welding efficiency.

This utility model discloses a conical installation device for a cartridge filter in an air conditioning unit. The device comprises a top disc, hexagonal bolts, diagonal support rods, fixing rods (in three lengths), internal hexagonal screws, flat washers, and spring washers. This utility model uses a specialized tooling mold for positioning. The diagonal support rods, composed of three round steel pipes arranged in an isosceles triangle and welded into a conical structure, are finished with hexagonal bolts at the ends and secured with a handle locking device. The filter cartridge can be disassembled and assembled without any special tools. This solves the problems of deformation and air leakage caused by insufficient installation strength in cartridge filters, while also shortening installation and disassembly time, ensuring the air conditioning unit can be put into use quickly. It is particularly suitable for air conditioning systems in cigarette factories, welding workshops, and other similar fields.

The utility model provides a welding tool for a lengthened ladder stand. The welding tool comprises a supporting piece, a welding piece and a welding piece, wherein the supporting piece is used for bearing vertical pipes on the two sides of the ladder stand; the positioning piece is used for bearing a transverse plate in the middle of the ladder; the mounting parts are used for fixing ladder legs on two sides of the ladder; the supporting piece, the positioning piece and the mounting piece are all mounted on the bottom plate, and a working position for assembling the crawling ladder is formed among the supporting piece, the positioning piece and the mounting piece; a plurality of bottom plates are arranged, and the plurality of bottom plates with the supporting pieces, the positioning pieces and the mounting pieces are connected with one another to form the welding tool matched with the length of the crawling ladder. The beneficial effect of the utility model is that (this is the beneficial effect corresponding to the above subject).

This invention relates to the field of loudspeaker soldering technology, and discloses a positioning fixture and soldering method for loudspeaker ribbon cable soldering. The fixture includes a soldering station with a base. The base is equipped with an electric push rod, a desoldering mechanism, a positioning mechanism, and a fixing mechanism, all distributed on opposite sides of the base. The telescopic end of the electric push rod has a rack structure. The desoldering mechanism includes a driving component and a desoldering assembly. The driving component has an arc-shaped toothed ring structure. The positioning mechanism includes a linkage component and a clamping component. The linkage component also has an arc-shaped toothed ring structure. The fixing mechanism is used to fix the loudspeaker. This invention achieves automatic cleaning of old solder while simultaneously fixing and positioning the ribbon cable, thus facilitating subsequent soldering.

The utility model relates to a solar cell. The solar cell includes: a substrate; the grid lines are fixedly arranged on the substrate; and a plurality of attachment blocks, the plurality of attachment blocks are fixedly arranged on two sides of the grid line in a staggered manner along the length direction of the grid line, and the plurality of attachment blocks are fixedly arranged on the substrate. The adhesion blocks arranged on the two sides of the grid line of the solar cell in a staggered manner can enhance the fixing strength of the grid line on the substrate, so that the grid line is not easy to fall off from the substrate, the conductivity of the grid line is improved, and the photoelectric conversion efficiency of the solar cell is improved.

The application relates to the technical field of welding materials, and particularly discloses a high-temperature-resistant flux-cored wire containing rare earth elements and a preparation method thereof. The high-temperature-resistant flux-cored wire containing rare earth elements comprises a wire sheath and a core; the core comprises the following raw materials: dehydrated rutile, dehydrated potassium feldspar, zircon sand, metal chromium powder, metal nickel powder, electrolytic manganese, ferrotitanium, aluminiferous iron, potassium cryolite, potassium titanate, sodium titanate, iron powder, yttrium-based iron alloy powder, atomized ferrosilicon, chromium-iron nitride, bismuth oxide, an additive, and the balance of reduced iron powder; the additive is a mixture of zirconium-iron alloy, ferrotitanium alloy and aluminum-magnesium alloy. The application introduces a specific alloy additive into the core to protect the transition of the rare earth yttrium, optimizes the welding performance of the yttrium and multiple components in cooperation, matches the 253MA heat-resistant steel, adjusts the components of the molten slag and the electric arc, and reasonably processes the technology, so that the welding quality of the wire is improved.

The utility model relates to the technical field of tail lamp outer framework welding equipment, in particular to a through type tail lamp outer framework welding device, which is provided with a bidirectional swing welding device, adjusts a welding angle in two directions, is convenient to weld a tail lamp outer framework with a complex curved surface structure, and improves the welding effect of a machine. Comprising a body; the welding machine comprises a machine body and further comprises a positioning and conveying device, a stamping and shaping device, a horizontal moving device, an up-down moving device and a bidirectional swing welding device, the positioning and conveying device, the stamping and shaping device and the horizontal moving device are all installed on the machine body, the up-down moving device is installed on the horizontal moving device, and the bidirectional swing welding device is installed on the up-down moving device.

The application discloses a kind of FPC temperature acquisition structures, including the temperature acquisition component of connecting aluminum-based FPC, temperature acquisition component includes integrally injection-molded temperature acquisition shell and conductor structure, temperature acquisition shell includes temperature acquisition part with temperature sensor and positioning part with connecting window, conductor structure is formed by copper material connecting piece and aluminum material connecting piece composite Copper material connecting piece is extended to temperature acquisition part and connected with temperature sensor, and aluminum material connecting piece is welded with aluminum-based FPC at connecting window position, the combination of same metal is better, welding strength is high and contact area is large, improve electrical contact performance, so that temperature information collected by temperature sensor can be reliably transmitted to FPC product, this conductor structure is designed using copper-aluminum composite structure, with high bonding strength, excellent conductivity and thermal conductivity, easy to weld, low contact resistance characteristics, can meet the welding requirements of conductor structure and aluminum-based FPC, also can reduce production cost, improve product performance.

The utility model discloses an energy storage cabinet shell, which relates to the field of shell structures and comprises a front plate, a rear plate is arranged at the back end of the front plate, a clamping cavity is arranged between the back end of the front plate and the front end of the rear plate, a first reinforcing mechanism and a second reinforcing mechanism are mounted in the clamping cavity, the first reinforcing mechanism is welded at the back end of the front plate, and the second reinforcing mechanism is welded at the front end of the rear plate. The second reinforcing mechanism is welded to the front end of the rear plate, and a welding mechanism is arranged between the first reinforcing mechanism and the second reinforcing mechanism. By arranging the front plate, the rear plate, the first reinforcing mechanism, the second reinforcing mechanism and the welding mechanism, the strength of the energy storage cabinet shell can be improved, the stress threshold value of the energy storage cabinet shell can be increased, welding of the front plate and the rear plate can be facilitated through the design of the welding mechanism, and the more convenient assembling effect is achieved.

The invention relates to an electrode foil process strip feeding device which comprises a rack, a bearing table used for bearing a process strip placing frame is transversely arranged on the rack, and a charging basket feeding mechanism used for feeding the process strip placing frame into the bearing table is arranged on one side of the bearing table. A pushing mechanism used for driving the process bar placing frame to move transversely is arranged in the bearing table, a pair of jacking fork rods used for jacking process bars in the process bar placing frame upwards is arranged on the front portion and the rear portion of the bearing table, and a turnover mechanism used for bearing the process bars and turning the process bars from the vertical state to the horizontal state is longitudinally arranged above the bearing table in a crossing mode. A feeding table used for bearing the overturned process strips is arranged on one side of the overturning mechanism, and a charging basket recycling mechanism used for taking the empty process strip placing frames back from the bearing table is arranged on the other side of the bearing table. By means of the device, feeding of the process strips, overturning feeding of the process strip placing frame and recycling of empty frames after material taking can be achieved.

The utility model provides an insulating forearm mechanism suitable for an aerial work platform with the voltage smaller than or equal to 66KV. The small arm mechanism comprises an insulating main arm, two insulating pull rods parallel to the insulating main arm and a working bucket installed at the free end of the insulating main arm, one end of the insulating main arm is rotationally connected with the arm support mechanism through a first connecting frame, the other end of the insulating main arm is rotationally connected with a connecting support, and the two insulating pull rods are arranged above the insulating main arm in parallel; one end is rotatably connected with the arm support mechanism through a first pull rod rotating shaft, the other end is rotatably connected with the connecting support through a second pull rod rotating shaft, a small arm variable-amplitude cylinder is arranged between the first pull rod rotating shaft and the first connecting support, and the working bucket is rotatably installed at the free end of the insulating main arm through a leveling support. According to the utility model, any insulation distance of the working bucket can be ensured to be more than 300mm, so that the working bucket achieves an insulation effect; the utility model can flexibly act when working in a specific or narrow space, and is simpler in structure and easy to weld.

This invention provides an automatic welding equipment for bicycle rack assembly and production, relating to the technical field of bicycle rack welding equipment. It includes: a support mechanism; a movement control mechanism housed inside the support mechanism; a position movement control component connected to the movement control mechanism on one side; a rack support frame control mechanism connected to the movement control mechanism; a lifting control mechanism installed on one side of the movement control mechanism and the support mechanism; a butt welding component installed on top of the rack support frame control mechanism; and a splicing frame support mechanism connected to the position movement mechanism on one side. This invention can control the automatic conveying of welding components, automatically lift and load welding parts, automatically complete butt welding and assembly, and transport the assembled rack to a designated location for separation. It solves the problems of numerous support frames and brackets, increased jig disassembly and assembly times, and cumbersome and laborious positioning of contact welding points during welding assembly.

The invention provides a four-way valve assembly machining method which comprises the following steps that a four-way valve and an aluminum pipe are provided, and the four-way valve is provided with an aluminum connecting part; the four-way valve and the aluminum piping are assembled; one end of the aluminum piping is connected with the aluminum connecting part in a matched mode; and the four-way valve and the aluminum piping which are assembled are welded and fixed through flame brazing or high-frequency welding. The four-way valve is provided with an aluminum connecting part, so that welding connection of the four-way valve and the aluminum piping is facilitated.

This utility model discloses a steel pipe splicing and welding support device, belonging to the field of steel pipe support technology. It solves the problem that if two steel pipes cannot achieve the same horizontal height and coaxial alignment, the final welded steel pipes will lack good consistency, leading to incompatibility in final applications. The device includes a fixed base, sliding blocks located on both sides of the fixed base that can move towards or away from each other, a clamping assembly rotatably mounted on the fixed base, and a limiting assembly fixedly connected to the sliding blocks. In operation, the two steel pipes are first inserted into the clamping assembly to achieve coaxiality and the same horizontal height. Then, the side cylinder and the limiting assembly are brought closer together. The side cylinder adjusts its height so that the steel pipe passes through the limiting space and is tangent to the inclined rod. The drive cylinder moves the intermediate plate and the side limiting rod downwards, adjusting the radius of the inscribed circle in the limiting space to restrict the steel pipe. The drive motor rotates forward, the side cylinder rises, and the end faces of the two steel pipes are aligned, facilitating welding.

The utility model discloses a urea box support welding positioning tool which comprises a positioning tool body, the positioning tool body comprises a first supporting frame, the first supporting frame comprises a first supporting plate, a first supporting leg and a second supporting leg, the first supporting leg and the second supporting leg are arranged below the first supporting plate, and a first lifting rod and a second lifting rod are arranged above the first supporting plate. A second supporting plate is arranged between the top of the first lifting rod and the top of the second lifting rod, a second rotary supporting plate is arranged at the end of the second supporting plate, a sliding groove is formed in the bottom of the second rotary supporting plate, a sliding hinge support is arranged on the sliding groove, the second lifting rod comprises a fixed section and a lifting section, a third supporting plate is arranged on the fixed section, and the second lifting rod is arranged on the third supporting plate. The top of the second lifting rod is connected with the sliding hinge support, and a first positioning rod and a second positioning rod are arranged at the two ends of the first supporting plate correspondingly. The utility model has the beneficial effect that the placing effect of the irregular urea box is improved by arranging the upper and lower two stages of positioning frames with different lengths.

This utility model discloses a welding positioning fixture and welding equipment. The support frame is equipped with a tilting table. The positioning assembly includes positioning columns and side pressure members. Multiple positioning columns are arranged on the tilting table and form positioning cavities for positioning the main component. The side pressure members include a first cylinder on the tilting table and a pressure plate at the output end of the first cylinder. One end of the pressure plate near the positioning cavity forms a downward pressing slope for abutting an auxiliary component and matching its structure. This welding positioning fixture can use only the first cylinder to drive the pressure plate, utilizing its downward pressing slope to position the auxiliary and main components laterally and vertically. The structure is simpler, ensuring the stability of the auxiliary and main components when the tilting table rotates at large angles, and facilitating coordinated welding with the welding equipment.

The utility model discloses a feeding welding device of a folding machine, which relates to the technical field of folding machines, aims to solve the problem that the conventional folding machine is not easy to add materials in time, and adopts the technical scheme that the feeding welding device comprises a positioning piece, a heater and a guide roller, and a rack is arranged among the positioning piece, the heater and the guide roller; the guide rollers are arranged on the rack and are fixed in position by the rack, a sensor for controlling a circuit of the folding machine where the positioning piece is located is arranged between the positioning piece and the rack, an elastic piece is arranged between the positioning piece and the rack, a penetrating area for materials to penetrate through is arranged in the area of the heater and the guide rollers, the number of the guide rollers is two, and a rotating rod is arranged at one end of one of the guide rollers. According to the feeding and welding device of the folding machine, automatic pause of machine operation can be formed after materials are consumed, so that a user can conveniently add and weld the materials, and the idling condition caused by the fact that the materials are used up and are not added in time is avoided.

The application discloses a sheet type radiator and a welding method. The sheet type radiator comprises a collecting pipe, radiating fins and a spoiler. The spoiler is welded on both sides of the radiating fin, and the length of the spoiler is equal to that of the radiating fin. The radiating fin is slidably connected with the collecting pipe through tile pipes, and the adjacent two tile pipes are clamped. The welding method is as follows: the two ends of the radiating fin are welded with the tile pipes respectively, the spoiler is welded with the radiating fin, and the two tile pipes on the outermost side are welded with the collecting pipe after the tile pipes are installed on the collecting pipe. Only one spoiler is welded on one side of each radiating fin, and the two ends of the spoiler are welded with the radiating fin. The welding area is small, the welding cost is reduced, the production efficiency is improved, the spoiler is welded with the radiating fin first, then the radiating fin is connected with the collecting pipe, the interval between the adjacent two radiating fins is not limited, the welding is convenient, the firmness of the welding mark can be easily detected, and the overall quality of the sheet type radiator is effectively improved.

This invention discloses a welding fixture for processing support rods of iron bunk beds, including an operating table and front and rear positioning mechanisms, left and right positioning mechanisms, fixing mechanisms, rotating mechanisms, and lifting mechanisms. The front and rear positioning mechanisms are located at the center of the top of the operating table, and each mechanism includes a groove. A first rotating shaft is installed inside the groove, and front and rear positioning plates are located on the outer side of the first rotating shaft. Guide rods penetrate both sides of the bottom of the front and rear positioning plates, and the ends of the guide rods are fixedly connected to the inner wall of the groove. A first handle is fixedly attached to the end of the first rotating shaft, penetrating the interior of the operating table. This welding fixture for processing support rods of iron bunk beds can limit and fix short and long support rods of different lengths, improving the versatility of the welding fixture.

This utility model discloses a reciprocating shaver head assembly, including a fixed blade, a rigid support, and a reciprocating moving blade assembly. The fixed blade is mounted on the support and includes a skin-contacting piece located at the top for shaving. The skin-contacting piece is an arc-shaped piece or a flat plate structure from left to right, and fixed blade teeth are provided on the skin-contacting piece. The moving blade assembly includes a moving blade and moving blade teeth that can move in a back-and-forth direction. A rigid support fixing part is provided on the support along the arrangement direction of the fixed blade teeth. The support fixing part is located inside the fixed blade teeth and moving blade teeth. The bottom of the skin-contacting piece is attached to the support fixing part and fixed thereto. By providing a support fixing part inside the fixed blade teeth and moving blade teeth for support and fixing the skin-contacting piece, the skin-contacting piece and the corresponding fixed blade teeth are strengthened. This allows the fixed blade to be manufactured with a thinner material and eliminates the support structure directly below the fixed blade teeth, thereby simplifying the structure and reducing costs while maintaining a clean shave.

This utility model discloses a lithium battery tab welding device, including a frame. An electric push rod is mounted on top of the frame, and a connecting block is mounted on the output end of the electric push rod. A transmission inclined surface is formed on the lower surface of the connecting block. A bearing seat is mounted on the right side of the connecting block, and a rotating plate is movably mounted below the bearing seat. A laser light is mounted below the rotating plate, and a first return spring is mounted on the right side of the rotating plate. A transmission plate is fixedly mounted on the left side of the rotating plate, and a transmission wheel is movably mounted on the left side of the transmission plate. A controller is mounted on the left side of the frame. This utility model improves the efficiency of manual positioning by using a laser light positioned on the same vertical line as the welding head to locate the lithium battery tab to be welded, thereby ensuring welding accuracy and improving welding efficiency and precision.

The utility model relates to the technical field of assembly or welding process equipment, in particular to a roller vertical clamping and positioning tool for assembly and welding, which comprises a pit arranged on an operation site, a centering positioner arranged at the bottom of the pit and a centering clamp arranged on the periphery of the opening of the pit. The centering positioner comprises a centering seat ring and a conical positioning hole formed in the upper end face of the centering seat ring. The centering clamping device comprises a pair of synchronous clamping devices and a pair of V-shaped clamping blocks, wherein the pair of synchronous clamping devices is fixed to the periphery of the pit opening portion of the pit and arranged on the two sides of the periphery of the pit opening portion respectively, and the pair of V-shaped clamping blocks is correspondingly arranged at the front ends of the pair of synchronous clamping devices and used for clamping the outer circle of a roller. According to the utility model, vertical hoisting during roller assembling and welding is facilitated, and the convenience and the production efficiency of roller assembling operation or roller welding operation are improved.

This utility model discloses a disposable electronic atomizer that is easy to assemble, comprising an oil tank shell, an oil compartment shell on one side, and a power supply shell on the other side. A mouthpiece is located in the middle of the oil compartment shell, and an atomizing chamber assembly is mounted at the bottom of the oil compartment shell. The atomizing chamber assembly includes an atomizing chamber base and electrodes. A sealing silicone seat is mounted at the bottom of the atomizing chamber base, and a PCB board is mounted at the bottom of the sealing silicone seat. A microphone is mounted on the PCB board. A power supply is installed between the power supply shell and one side of the sealing silicone seat. One wire of the PCB board passes through the sealing silicone seat and is electrically connected to the electrode of the atomizing chamber assembly; another wire of the PCB board passes through the sealing silicone seat and is electrically connected to the power supply. A bottom shell is fitted onto the bottom of the oil tank shell. This disposable electronic atomizer is easy to assemble, facilitating the soldering of the PCB board wires and preventing cold solder joints or missing solder joints, thus simplifying assembly and increasing assembly efficiency.

The utility model discloses a kind of butt joint of different diameter steel pipe joint welder, belong to steel pipe welding technical field, including base, rotating circular pipe for butt joint of different diameter steel pipe and be used for the welding machine of butt joint weld of different diameter steel pipe, the inside fixedly connected with second fixed plate of rotating circular pipe, the side of second fixed plate is equipped with second motor, the output fixedly connected with round gear of second motor, the side of round gear is engaged with rack slidingly connected with rotating disc, the downside fixedly connected with support plate of rack, the side of support plate away from rack is equipped with press switch, the device is rotated by second motor and drives round gear, rack is moved, rack moves and support plate moves, support plate supports inside steel pipe, and different diameter steel pipe is fixed at the same center.

The utility model relates to municipal works pipe jacking construction technology field discloses a kind of folding linear pipe jacking line shape measuring devices, including clamping mechanism, folding ruler, adjustable target and the telescopic fixing mechanism for locking the included angle between clamping mechanism and folding ruler;The clamping mechanism is used to clamp the measuring device in the end of pipe wall two sides of construction pipe jacking;Folding ruler one end articulates clamping mechanism;Folding ruler is provided with recess along length direction, and folding ruler is divided into several short rulers, and short ruler is connected with hinge;Laser source and reflector are provided on the adjustable target, and adjustable target is embedded recess to form sliding connection;The telescopic fixing mechanism includes telescopic link and first fixed bolt.The utility model integrates clamping, extension, measurement, target and locking function in one, adapt to the narrow space limit of construction;The short ruler design of folding ruler meets different pipe diameter measurement demand;Telescopic link adjusts included angle, ensures that folding ruler is perpendicular to pipeline axis, reduces inclination error.

The utility model relates to the technical fields of welding device especially is concerned on a kind of parts welding device of pressure vessel manufacturing, it is set up the mobile roller structure that can be supported roll lifting, it is convenient to carry out longitudinal activity, improve practicality;Including chassis, support axle bracket, support roller shaft and support roller, the left and right sides of the top of chassis are respectively movably provided with a group of support axle bracket by adjusting mechanism, the inside upper side of each group of support axle bracket is respectively rotatably provided with a group of support roller shaft, support roller shaft outer wall is connected with support roller inner wall, further include reciprocating motor, threaded rod, movable frame, guide sleeve, longitudinal moving axle bracket, longitudinal moving roller shaft, longitudinal moving roller and internal thread sleeve, reciprocating motor output end is connected with threaded rod top end, guide sleeve inner wall is slidably connected with movable frame same side outer wall, two groups of movable frame top end are connected with longitudinal moving axle bracket bottom end left and right sides, longitudinal moving axle bracket front and back side inside is rotatably provided with a group of longitudinal moving roller shaft, longitudinal moving roller shaft outer wall is connected with longitudinal moving roller inner wall.

The invention belongs to the technical field of marine large-diameter pipeline welding, and particularly relates to a marine large-diameter pipeline welding device and a welding method thereof.The marine large-diameter pipeline welding device comprises a welding table and a welding treatment mechanism, the left end and the right end of the welding table are fixedly connected with pipeline welding frames, and the upper surface of the welding table is fixedly connected with an arc-shaped supporting pad. Eccentric movement of the eccentric shaft enables the piston connecting rod to drive the lower pressing block to slide up and down in the sliding support, when the lower pressing block slides up and down in the sliding support, the touch pressing plate keeps a certain reset effect under the action of the torsion spring, and when the touch pressing plate extends to one end of the outer side of the lower end of the sliding support to make contact with a weld joint part, the touch pressing plate is reset. When a pipeline is welded, the touch pressing plate compresses the torsion spring due to resistance, at the moment, the lower pressing block continues to press downwards, the hammer head can be driven by the touch pressing plate to collide with the joint of the two marine pipe bodies, impurity attachment is prevented, and the welding seam position can be collided after the pipeline is welded so that the welding effect can be detected conveniently.

The utility model discloses a kind of welding piece clamping devices, including welding base, the bottom of welding base is distributed with at least three supporting legs, lifting assembly is provided on supporting leg, the output end of lifting assembly is connected with the bottom of welding base, at least one first chuck assembly, second chuck assembly and third chuck assembly are distributed and arranged on welding base, workpiece clamping area is formed between first chuck assembly, second chuck assembly and third chuck assembly, first chuck assembly, second chuck assembly and third chuck assembly are used to clamp positioning for different workpieces;Stable welding base using supporting leg, and its height is adjusted by lifting assembly, to adapt to welding equipment gap;When welding, welding base moves to welding equipment to facilitate welding;When unloading, welding base is lowered away from welding equipment, convenient to take piece;Work staff can adjust material taking space, reduce material taking difficulty;Workpiece is fixed using first chuck assembly, second chuck assembly and third chuck assembly, accurate welding is realized.