54results about How to "Guaranteed appearance" patented technology

The invention discloses a full-automatic intelligent rotor magnetic steel insertion machine. The device comprises a machine table; the rack is fixed on the machine table, an upper jig is arranged on the rack, and the upper jig is movably connected with the rack up and down; the insertion jig bottom plate is fixed on the machine table, a placement seat through hole is formed in the insertion jig bottom plate, and a plurality of magnetic steel placement grooves are formed in the side wall of the placement seat through hole; the rotor iron core placing seat is arranged in the placing seat through hole and is connected with the placing seat through hole in an up-down sliding manner, and a magnetic steel magnetic attraction groove is formed in the side wall of the rotor iron core placing seat; and the up-down sliding jig assembly is arranged on the lower end face of the insertion jig bottom plate and connected with the rotor iron core placement seat, the up-down sliding jig assembly and the insertion jig bottom plate are connected in an up-down sliding mode, and the up-down sliding jig assembly is provided with a placement seat automatic reset structure. The beneficial effect of the invention is that a plurality of magnetic steels can be inserted at the same time at one time.

The utility model relates to the field of stamping devices, and discloses a novel hardware stamping part surface scratch prevention device which comprises a bottom plate and a stamping seat, the top of the bottom plate is fixedly connected with a supporting column, the bottom of the supporting column is fixedly connected with a hydraulic rod, and the driving end of the hydraulic rod is fixedly connected with a stamping block. Two rotating shafts are rotatably connected to the interior of the stamping block, rotating bending shafts are fixedly connected to the exteriors of the rotating shafts, a second convex button is fixedly connected to the front side of each rotating bending shaft, a reset button is fixedly connected to the front side of each rotating bending shaft, and two first convex buttons are fixedly connected to the front side of the stamping block; and the front side of the stamping block is fixedly connected with a fixed block. According to the bending device, the two rotating bending shafts are driven by the hydraulic rod to rotate in a contact mode to bend a workpiece, workpiece surface scratching possibly caused by direct contact extrusion is effectively avoided, and the surface quality of a product is greatly improved.

An ultrasonic cleaning device for aluminum alloy wheels includes two cleaning tanks, I and II, arranged horizontally side by side. Each tank includes a body. A support plate for placing the aluminum alloy wheel is installed in the lower part of the tank body. The support plate is horizontally positioned and has water filter holes. A support shaft is vertically installed through the bottom wall of the tank body. A horizontally positioned support rod is installed on the top of the support shaft. Several ultrasonic transducers are mounted on the support rod. A drive device is installed on the outer wall of the tank body to drive the support shaft and the ultrasonic transducers to rotate and adjust their positions via the support rod. A rotary dynamic seal is installed at the junction of the support shaft and the tank body. This device is easy to operate, highly efficient in cleaning, and can thoroughly clean all parts of the alloy wheel using ultrasonic waves, removing impurities without dead angles. The process is gentle and does not damage the appearance or performance of the wheel, helping to ensure the product quality of the aluminum alloy wheel.

This utility model discloses a display shell molding mold, including an upper mold, a lower mold, a first molding mechanism, and a second molding mechanism. The upper mold has a cavity, and the first molding mechanism includes a first molding part and a first displacement device. The first molding part has a first molding surface. The lower mold has a core, and the second molding mechanism is disposed on the lower mold. The second molding mechanism includes a second molding part, a mounting base, and a second displacement device. The second molding part has a second molding surface. A first release coating is provided on both the first molding surface and the second molding surface. The core, the cavity, the first molding surface, and the second molding surface form an injection mold cavity. In this way, the design of each component facilitates the ingenious arrangement of the overall mold structure. Combined with the setting of the first release coating, the contact friction between the corresponding molding slider and the injection molded product is reduced, thereby avoiding damage when the injection molded product separates from the corresponding slider, ensuring the molding quality of the injection molded product, and meeting the user's needs.

The invention relates to the technical field of photovoltaic materials, in particular to an anti-migration black pigment, a high-reflection black packaging adhesive film and a photovoltaic module. The anti-migration black pigment has a structural general formula as shown in a formula I, wherein R1 is at least one of R1, R2, R3, R4, R5, R6 and R7. The anti-migration black pigment disclosed by the invention is blue-phase black, and has excellent damp-heat resistance and migration resistance; when being used for a black packaging adhesive film, the black packaging adhesive film can be well matched with the color of a battery piece without adding other auxiliary pigments for color matching; and in a high-temperature and high-humidity environment, the color difference change value (delta E) of the color of the adhesive film is remarkably reduced, and the requirement that delta E is less than or equal to 2 in long-term use of the photovoltaic adhesive film is completely met.

The utility model discloses a composite non-woven fabric hot rolling and laminating device, and relates to the technical field of composite non-woven fabric processing devices. The non-woven fabric hot rolling device comprises a workbench, and further comprises a hot rolling part which is installed above the workbench and used for carrying out hot rolling on non-woven fabric; the guide part is mounted at the top of the hot rolling part and is used for guiding the non-woven fabric; the preheating part is arranged above the guide part and is used for preheating the non-woven fabric; wherein the hot rolling part is used for conveying the non-woven fabric and carrying out hot rolling on the non-woven fabric, and during conveying, the guide part limits the non-woven fabric. The guide part is arranged, so that the problems that in the using process of an existing composite non-woven fabric hot-rolling film covering device, non-woven fabric is prone to transverse position deviation in the conveying process, so that the non-woven fabric is inconveniently and accurately compounded with a film, the film covering of a compounded product is prone to being uneven, and the product quality is poor are solved. The appearance and the quality of the product are influenced.

The utility model discloses a kind of cutting leather machines, including the bearing plate for placing leather body, the bottom four corners of bearing plate is fixedly installed with bracket leg, slidingly connected with moving frame on bearing plate, driving component for assisting moving frame movement is provided on bearing plate, further including the U-shaped table setting in moving frame interior, driving assembly for driving U-shaped table is provided on moving frame, U-shaped frame is provided below U-shaped table, lifting component for U-shaped frame lifting is provided on U-shaped table, connecting block is provided in U-shaped frame inside.The utility model of a kind of cutting leather machines, by the mutual cooperation of driving assembly, lifting component, telescopic component, identification piece and cutting assembly, effectively prevent the probability that leather edge is scorched, wrinkled or layered due to the excessive pressure of blade to leather body, ensure the quality and appearance of leather.

The utility model provides a solar energy chestnut drying equipment. Solar energy chestnut drying equipment includes: the drying box of top fixed mounting has solar energy panel, drive gear shaft, drive gear shaft rotates the installation in drying box, synchronous gear shape area, synchronous gear shape area is equipped on drive gear shaft, and fixed mounting has support block, holds the disc, holds the disc for placing chestnut setting between synchronous gear shape area, and with support block is contacted, hot -blast pipe, hot -blast pipe fixed mounting is in drying box, is used for introducing hot blast to drying box, exhaust pipe, exhaust pipe fixed mounting is in hot -blast pipe, and extends to drying box. The utility model provides solar energy chestnut drying equipment has a plurality of air outlet, increases hot blast guiding mechanism simultaneously, improves the evenness of hot blast advantage.

The utility model relates to the field of workpiece clamping and hanging, in particular to an up-down elastic clamping anti-skid hanging tool which comprises a main hanging rod, two clamping structures are arranged on the main hanging rod, the two clamping structures are oppositely arranged, any clamping structure comprises a clamping disc arranged on the main hanging rod in a lifting mode, and the clamping disc is arranged on the main hanging rod in a lifting mode. A clamping rod is fixedly arranged on any clamping disc, the clamping rods are arranged in a bent mode and have elasticity, and a clamping space used for clamping a workpiece to be electroplated is formed between the ends, away from the clamping discs, of the two clamping rods. The clamping disc capable of ascending and descending on the main hanging rod is arranged, the clamping height can be flexibly adjusted, and to-be-electroplated workpieces of different sizes can be conveniently adapted; according to the electroplating clamp, the elastic and bent clamping rods are arranged, so that the clamping rods can elastically clamp the to-be-electroplated workpiece through the elasticity of the clamping rods, the to-be-electroplated workpiece is effectively prevented from sliding down, meanwhile, the clamping space is formed through the two opposite clamping structures, it is ensured that the to-be-electroplated workpiece is stably clamped, and the electroplating requirement is met.

The application discloses an environment-friendly flame-retardant master batch for crosslinked polyethylene and a preparation method thereof, and belongs to the technical field of high polymer flame-retardant materials. The flame-retardant master batch is prepared from LLDPE resin as a base material, an aluminum diethyl phosphinate, melamine polyphosphate and modified magnesium hydroxide to form a phosphorus-nitrogen-inorganic ternary synergistic flame-retardant system, the addition of sepiolite which is resistant to high temperature and flame-retardant, the modification of an interface by using a PE-g-MAH compatilizer, and the addition of compounded antioxidants, lubricants and anti-dripping agents, high-speed mixing, three-screw mixing, single-screw extrusion, surface grinding and cutting, magnetic selection and vacuum packaging. The flame-retardant master batch can make the crosslinked polyethylene material reach UL94V-0 grade with 10% of the addition amount, and has the characteristics of low smoke, environmental protection, low release, high mechanical property retention rate and the like, and is suitable for the field of electric wires and cables.

A dehumidifier, which comprises a casing, a refrigeration system, a water tank and a water tank; the casing is provided with a containing space, the top surface of the casing is provided with a receiving cavity extending downward, the receiving cavity is arranged above the containing space; the refrigeration system is arranged in the containing space, the refrigeration system comprises a compressor, a condenser and an evaporator; the water tank is arranged in the receiving cavity from top to bottom; the roller is detachably arranged at the bottom of the casing; the side wall of the receiving cavity is provided with a receiving groove; the roller can be removed from the bottom of the casing and placed in the receiving groove; when the water tank is placed in the receiving cavity, the water tank can block the receiving groove. The water tank is arranged in the receiving cavity of the casing from top to bottom, which can solve the problem that the user needs to squat to lift the water tank in the related dehumidifier. By arranging the receiving groove on the side wall of the receiving cavity, cooperating with the roller which can be removed from the bottom of the casing and placed in the receiving groove, and then it is convenient for the user to install the roller according to the needs.

The invention relates to the technical field of battery sealing nail welding, and provides a battery sealing nail welding defect repairing method. The repairing method comprises the following steps: acquiring an aluminum wafer of which the diameter is greater than that of a liquid injection hole of the battery top cover; removing the sealing nail at the liquid injection hole of the top cover of the battery; cleaning a liquid injection hole area; carrying out penetration type stitch welding by taking the wafer as an upper layer and the battery top cover as a lower layer to form a welding seam for melting the wafer and the battery top cover into a whole; and treating the welding seam and the wafer, enabling the outer surface of the wafer to be flush with the outer surface of the battery top cover, and enabling the liquid injection hole area not to be visually recognized. According to the repairing method, the aluminum wafer and the battery top cover are subjected to penetration stitch welding, and the welding seam and the surface of the wafer are treated, so that the welding defect of the sealing nail is repaired, the situation that the battery is degraded and scrapped due to poor welding or appearance defect of the sealing nail is avoided, and the quality requirement of the battery is met.

The invention discloses a battery piece detecting and packaging production line and method.The production line comprises a battery piece feeding mechanism, a battery piece counting mechanism, a battery piece detecting mechanism, a bagging mechanism, a bag folding mechanism, a box buckling mechanism and a labeling mechanism which are sequentially arranged in the direction of the production line; and a plurality of carrying mechanisms, a packaging box conveying line, a packaging box feeding unit and a packaging bag feeding mechanism are matched to realize full-process automatic operation. According to the invention, efficient and safe battery piece counting and alignment are realized through combination of inclined vibration regulation and a three-side blowing mechanism; the packaging reliability and the appearance uniformity are ensured through the bagging and bag folding mechanism with unique designs such as bag pressing, inner supporting and folding; the problems that traditional battery piece packaging depends on manual work, efficiency is low, damage is prone to occurring, and consistency is poor are solved, full-process automatic and high-flexibility production of battery piece stacks from feeding, defect detection to packaging and labeling is achieved, and production efficiency and product quality are remarkably improved.

The invention discloses a TSS-SBFO coating agent for storage and preservation of perishable fruits and a preparation method of the TSS-SBFO coating agent. The coating agent prepared from the sphaeros gum, the artemisia desertorum gum, the silk fibroin peptide, the sea buckthorn fruit oil and the glycerol can be used for storage and preservation of perishable fruits, and has good oxidation resistance. The coating agent prepared by the invention can be directly coated on the surfaces of perishable fruits in a soaking manner, the use method is simple, good light transmittance can be maintained while the ultraviolet transmittance is reduced, and the effects of keeping fresh, resisting oxidation and maintaining a good state of the fruits can be achieved.

The application relates to a cigarette packet extracting device and method. The cigarette packet extracting device comprises a first mounting bracket, a driving mechanism, a crank, a connecting rod and an executing mechanism. The first mounting bracket is used for mounting on the rack of a cigarette packet extracting conveying belt. The driving mechanism is mounted on the first mounting bracket. The driving mechanism is in driving connection with the crank, and the connecting rod is in driving connection with the crank. The executing mechanism comprises a hook hand which is in driving connection with the connecting rod so that the driving mechanism drives the hook hand to reciprocate through the crank and the connecting rod. The cigarette packet extracting device and method have the advantages of high stability, long service life and high machining precision.

The invention provides a jujube fruit cracking prevention film agent as well as a preparation method and a use method thereof.The jujube fruit cracking prevention film agent is prepared from the following raw materials in parts by mass: 1-5 parts of a polyvinyl alcohol solution, 1-5 parts of a polyacrylamide solution and 0.5-1 part of a modified oxidized humic acid solution; wherein the polyvinyl alcohol solution is prepared from the following components in parts by mass: 1 to 5 parts of polyvinyl alcohol, 0.1 to 0.5 part of cross-linking agent and 50 to 120 parts of water; the polyacrylamide solution is prepared from the following components in parts by mass: 1 to 5 parts of polyacrylamide, 0.1 to 1 part of hydrophobic monomer and 80 to 150 parts of water; the modified oxidized humic acid solution is prepared from the following components in parts by mass: 1 to 2 parts of modified oxidized humic acid, 0.05 to 0.1 part of calcium salt, 0.05 to 0.1 part of phosphorus salt, 0.05 to 0.1 part of silicon fertilizer, 0.05 to 0.1 part of borax, 0.05 to 0.1 part of growth promoting agent and 30 to 80 parts of water. The jujube fruit cracking prevention film agent can prevent jujube fruit cracking.

The utility model provides a sealing machine which comprises a supporting frame, a moving assembly, a fixing assembly, a connecting assembly and a driving assembly, the moving assembly comprises an upper pressing piece and an upper cutting piece which are connected with each other, the connecting assembly is connected to the supporting frame in a sliding mode, and the fixing assembly comprises a lower pressing piece and a lower cutting piece which are connected with each other. The upper press-fit piece and the lower press-fit piece are correspondingly arranged to seal the plastic bag, and the power output end of the driving assembly is connected with the connecting assembly. According to the device, the driving assembly can drive the connecting assembly to drive the moving assembly to get close to or get away from the fixing assembly in a reciprocating mode, and the moving assembly comprises the upper pressing piece and the upper cutting piece which are connected with each other; the upper pressing piece and the lower pressing piece seal a plastic package bag, and meanwhile the lower cutting piece and the upper cutting piece cut the plastic package bag, so that it is ensured that a notch is matched with a sealing edge, and the sealing performance and appearance of a seal are ensured.

The utility model relates to the technical field of furniture discloses a desk with frame type support structure, including desk bearing plate and support subassembly, the support subassembly includes first support piece and second support piece, the first support piece includes each other vertical support rod and first connecting rod, and the support rod and first connecting rod form L type structure, the top of support rod with desk bearing plate bottom fixed connection, the second support piece includes support board, the top of support board with desk bearing plate fixed connection, the one end of first connecting rod away from support rod is fixedly connected in the middle of support board bottom, the first support piece and second support piece fixed connection form frame type support structure. The desk of the application forms frame type support structure through the fixed connection of first support piece and second support piece, and the simple structure is small and occupies the space, improves the overall stability of desk simultaneously.

The utility model discloses a fixing device for processing a corrosion-resistant rubber tube, which relates to the technical field of rubber processing and comprises a base and a clamping component, the inner wall of the clamping component is rotatably connected with a fixing column at the top of the base, and the outer wall of the clamping component is fixedly connected with a clearing component; the clamping assembly comprises a rotating seat, the top of the rotating seat is fixedly connected with a fixing seat, the inner wall of the fixing seat is fixedly connected with an air bag, and the inner wall of the top of the air bag is fixedly connected with an air inlet header pipe through a pipeline. According to the device, pressure is applied in multiple directions to achieve firm clamping, the device can adapt to rubber pipes with different pipe diameters, the problem that a traditional rigid clamping mode is narrow in application range is solved, the device can be suitable for machining corrosion-resistant rubber pipes of various specifications, and the universality of the device is improved.

The utility model discloses an anti-bumping apple picking machine, which relates to the technical field of apple picking and comprises a base, driving rods are rotatably connected to two sides of the top end of the base, a connecting rod is hinged to one end, far away from the base, of each driving rod, and a clamping plate is fixedly connected to the other end of each connecting rod. Buffer plates are arranged on the opposite sides of the clamping plates, a plurality of buffer springs are fixedly connected between the clamping plates and the buffer plates, a button is installed at the center position of the side, close to the buffer plates, of each clamping plate, a touch block is installed on the side, close to the clamping plates, of each buffer plate, and the touch blocks are matched with the buttons; through the combined action of good elasticity of rubber and the buffer springs, the apple picking device can effectively absorb and disperse impact force during clamping, direct rigid collision between apples and the clamping plates is avoided, the damage probability of the apples in the picking process is greatly reduced, the appearance and quality of the apples are guaranteed, and the commodity value of the apples is improved.

This invention relates to the field of building construction technology, specifically to an indoor and outdoor double-layer curtain wall system and construction method, including: a keel insulation system, an outdoor slotted aluminum honeycomb water ripple stainless steel composite panel system, and an indoor double-layer gypsum board system. The beneficial effects are: this invention adopts a shared keel and insulation system for both indoor and outdoor walls, an outdoor slotted aluminum honeycomb water ripple stainless steel composite panel system, and an indoor double-layer gypsum board system. This not only achieves cost savings but also reduces construction costs, meets the functional requirements of the building, ensures the building's aesthetic appearance, and facilitates installation, maintenance, and replacement.

The utility model provides a kind of impeller injection mold, including upper die plate, lower die plate, core mould and sliding block;The core mould is located on upper die plate, the sliding block is circumferentially distributed in the periphery of core mould, and the sliding block, core mould, upper die plate and lower die plate constitute the mold cavity of impeller;The sliding block is combined sliding block, and the combined sliding block includes upper layer sliding block and lower layer sliding block, and the lower layer sliding block is movably installed on upper die plate along second direction, and the upper layer sliding block is movably installed on lower layer sliding block along first direction, and the lower layer sliding block is connected with second straight line mechanism, for driving lower layer sliding block to move on upper die plate along second direction;The upper layer sliding block is connected with first straight line mechanism, for driving upper layer sliding block to move on lower layer sliding block along first direction.The utility model solves high negative angle blade demolding damage problem by combined sliding block, greatly improves yield, and moreover prolongs the service life of mould, reduces maintenance cost.

The application relates to an electric core heat-sealing head and a heat-sealing assembly. The electric core heat-sealing head comprises a head body, the head body comprises a base part, a connecting part and a heat-sealing part, the connecting part is connected between the heat-sealing part and the base part, one side of the heat-sealing part away from the connecting part is provided with a heat-pressing surface for heat-pressing an aluminum plastic film; a heat insulation layer is arranged on the side surface of the electric core heat-sealing head extending along the length direction of the electric core heat-sealing head, and the heat insulation layer covers at least the side surface of the connecting part. The scheme provided by the application can weaken the heat radiation effect of the heat-sealing head on the aluminum plastic film and prevent the deformation of the edge of the electric core.

The application discloses a fabric wrinkle-removing and shaping processing equipment and belongs to the technical field of fabric processing, and aims to solve the problems of unstable guiding, inconvenient pressure adjusting, uneven ironing, untimely drying and inaccurate winding control of the existing fabric wrinkle-removing and shaping equipment, which leads to poor processing efficiency and quality. Technical scheme points are as follows: the equipment comprises a rack, a fixed plate, a bearing seat II, a driving shaft and a winding roller arranged in the rack, a guiding assembly arranged in the rack, a control cabinet and a servo motor arranged on one side of the rack, a connecting plate, a U-shaped frame and a pressing assembly arranged at one end of the rack, a side plate and two groups of ironing assemblies arranged on one side of the connecting plate, and a hot air blower arranged in the rack. The guiding assembly realizes stable fabric conveying, the pressing assembly can flexibly adjust the pressing strength, the ironing assemblies realize synchronous and uniform ironing, the hot air blower dries the ironed fabric, and the servo motor accurately controls the winding speed. The equipment realizes integrated fabric processing, is suitable for various fabrics, and improves the processing efficiency and wrinkle-removing and shaping quality.

The utility model relates to a kind of steel ring taking device, including support, pusher, hooking device;The pusher is set in the top of the support;The pusher drives the hooking device to have stroke on the support;Further including separating device;The separating device is located at the both sides of the support;The separating device slides along the support;The separating device is angularly inclined.Solve the traditional steel ring taking device separation, low efficiency, need to develop synchronous separation stable device.

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a square battery automatic turn-over mechanism which comprises a rack, a conveying belt, a pressing mechanism and a turning mechanism, the turning mechanism is arranged at the tail end of the conveying belt and used for turning over a square battery, the pressing mechanism is located on the side portion of the turning mechanism, and the turning mechanism is used for turning over the square battery. The device is used for enabling the square battery to be tightly attached to the overturning mechanism in the overturning process of the overturning mechanism. According to the mechanism, the battery can be automatically overturned, continuous overturning work of the battery can be achieved through mutual cooperation of the conveying belt, the pressing mechanism and the overturning mechanism, workers are replaced, the working efficiency is improved, the elastic pressing belt makes contact with the surface of the battery after the whole overturning process, and therefore the surface of the battery cannot be damaged.

The utility model relates to the technical field of plastic flat filament cutting machines, in particular to a plastic flat filament cutting machine which comprises supporting seats, a connecting column is fixedly connected between the two supporting seats, a scrap removing structure is arranged on the supporting seats, the scrap removing structure comprises a connecting box and a fan, the connecting box is fixedly connected to the supporting seats, the fan is installed at the top end of the connecting box, and the connecting column is fixedly connected to the supporting seats. An outer frame is clamped on the connecting boxes, a filter screen is fixedly connected to the outer frame, a same connecting pipe is fixedly connected between the two connecting boxes, a plurality of air inlets are formed in the connecting pipe, a collecting box is clamped on the connecting boxes, a blocking structure is arranged on the connecting boxes, and a slitting structure is arranged on the connecting column; according to the slitting device, chippings generated in the slitting process can be removed in the slitting process, the situation that the chippings influence the strength and appearance of follow-up woven products is avoided, the circulation speed of air around the slitting knife can be increased while the chippings are removed, and therefore the situation that the temperature of the slitting knife is too high can be avoided, and the use safety is improved.

The invention relates to the technical field of cleaning, and discloses a photo frame material surface automatic cleaning device and method.The photo frame material surface automatic cleaning device comprises a roller conveyor and a cold air cleaning structure installed at the front end of the roller conveyor, the surface temperature of a photo frame solid wood material is reduced through cold air, water vapor is condensed on the cold air, and a condensate water film neutralizes electrostatic charges between wood and dust; and the weight of dust particles is increased, and the dust particles are mutually bonded into clusters and are matched with gas cleaning. Through a low-temperature induced instantaneous micro-condensation mechanism, static electricity is neutralized, dust is agglomerated, dust bolts are formed, thorough stripping of deep dust on the surface of the wood and in micropores is achieved in cooperation with bidirectional high-pressure airflow, and the problems that the surface is clean and deep residues exist in a traditional cleaning method are solved; meanwhile, microcosmic burrs are passivated through micro swelling and a recovery effect, surface stress is pre-released, surface tension and pore wetting balance are unified, the surface smoothness of the wood is improved, an ideal interface is created for subsequent degreasing and paint spraying, and coating defects are reduced.

This invention relates to an intelligent laser welding machine for towel racks, belonging to the technical field of welding equipment. It aims to solve the problems of inaccurate positioning, easy jamming and deformation of pipes due to thermal expansion and contraction, poor adaptability, and low welding efficiency in existing laser welding equipment. The machine includes a worktable, support wheels, two sets of clearance clamps, a support frame, a fixed cylinder, a rotating cylinder, a motor, a clamping assembly, a positioning clamp, a lifting assembly, and a laser welding head. Support wheels are located on the top of the worktable. The clearance clamps are slidably mounted on the worktable and coaxial with the pipe. The support frame is fixed to the worktable. The rotating cylinder is fitted onto the outer wall of the fixed cylinder. The motor drives the rotating cylinder to rotate. The clamping assembly is clamped into the fixed cylinder. The positioning clamp is fixed below the clamping assembly. The lifting assembly is rotatably mounted on the rotating cylinder. The laser welding head is fixed to the lifting assembly. The clearance clamps are equipped with leaf springs for buffering. The positioning clamp accurately positions the joint. The rotating cylinder drives the laser welding head to rotate, achieving ring welding. This equipment can adapt to pipes of different specifications and avoids pipe deformation.

The present application belongs to the technical field of vehicle structure, and discloses an elbow structure and a vehicle, wherein the elbow structure comprises an inner wall plate, the inner wall plate is provided with an inner wall weakening hole and a first weakening groove, the inner wall weakening hole is in a strip shape, and a plurality of inner wall weakening holes are provided, the plurality of inner wall weakening holes are parallel to each other and are sequentially and spacedly arranged, and the first weakening groove is in a strip shape and sequentially connects the plurality of inner wall weakening holes, and the vehicle comprises the above elbow structure. In the present application, the plurality of inner wall weakening holes are provided, which can effectively reduce the width of a single inner wall weakening hole, thereby avoiding the problem that the local strength of the inner wall plate is too low and is easy to deform, ensuring the product appearance and daily support performance, the first weakening groove sequentially connects the plurality of inner wall weakening holes, can form a stress concentration area, can provide large deformation or even fracture during a collision, can break the stress transmission path, can realize efficient side impact energy absorption and collapse, and the inner wall weakening hole and the first weakening groove are matched, can take into account the side impact energy absorption and collapse, and the product appearance and daily support performance.