32results about How to "Precise clamping" patented technology

According to the auxiliary positioning clamp for milling the exhaust manifold, an inclined positioning supporting device is arranged on the right side of the upper end face of a bottom plate, and when the inclined positioning supporting device is connected with a flange at the lower end of a middle pipe of the exhaust manifold in a matched mode, an upper end pipe of the exhaust manifold is in a horizontal state, and a pipe opening in the elbow end of the upper end of the exhaust manifold is parallel to the corresponding side wall face of the bottom plate; the left side of the upper end face of the bottom plate is provided with a positioning and supporting assembly used for supporting the elbow end of the upper end of the exhaust manifold and determining the center position of a pipe opening, and the positioning and supporting assembly is matched with a pressing assembly arranged on the upper end face of the bottom plate to fixedly support the elbow end of the upper end of the exhaust manifold on the bottom plate. Initial positioning conditions are provided for the center of a pipe opening of the upper end pipe of the exhaust manifold, reliable supporting and fixing of the exhaust manifold on the bottom plate are achieved, the defect that a traditional clamp is high in requirement for machining equipment is overcome, machining cost is reduced, the exhaust manifold can be accurately and rapidly positioned and clamped, production cost is reduced, and the machining efficiency is improved. Equipment limitation is eliminated, and the production requirements of parts are met.

The invention relates to a box girder steel reinforcement framework closed ring forming welding device and method, the device comprises a steel reinforcement butt welding machine, the steel reinforcement butt welding machine comprises a movable clamping seat and a fixed clamping seat, and a butt welding area is arranged between the movable clamping seat and the fixed clamping seat; the positioning mechanism comprises a positioning frame, a driving cylinder, a rack, a side clamping seat, a front clamping seat and a rear clamping seat; a cylinder body of the driving cylinder is fixed on the positioning frame, a driving seat is arranged at the front end of the driving cylinder, racks are fixed on two sides of the driving seat, and the racks are adaptively positioned and slidably sleeved on the positioning frame; the racks on the two sides are meshed with corresponding gears, rotating shafts of the gears on the two sides are in transmission connection with left-hand thread screws extending towards the two sides, side clamping bases are arranged on the upper portions of the two sliding sleeves, and side clamping areas are formed. And the front clamping seat and the rear clamping seat correspond to each other and are respectively positioned on the outer side and the inner side of the butt welding area. A positioning tool is provided for the butt welding forming process of the rectangular steel reinforcement framework, and the consistency and reliability of welding quality are ensured through a positioning system and a clamping system.

This invention relates to the field of printing equipment technology, specifically to a method for printing 3D effect patterns based on multi-color overlay, comprising the following steps: S1, placing the workpiece to be printed on a base; S2, aligning the screen with the base, and printing ink onto the workpiece using a squeegee; S3, replacing the screen, and printing again using the squeegee, with multiple overlapping prints creating a 3D effect pattern on the workpiece surface; the screen mentioned in step S2 includes a frame and a mesh fabric. The frame includes two support rods and four telescopic rods. The two support rods are arranged in parallel, and the telescopic rods include a main rod and a secondary rod, with the main rod and secondary rod slidingly engaged; the four telescopic rods are interconnected to form a rectangular frame, with two telescopic rods respectively positioned on the two support rods, and a first magnetic block on each of the main rod and secondary rods. This invention solves the problem of printing quality being affected by screen deformation through the frame, mesh fabric, and adjustment mechanism.

The invention provides audio automatic detection equipment, and relates to the technical field of audio detection. The audio automatic detection equipment comprises a to-be-tested sound source assembly, and further comprises an air nozzle configured to provide air flow required by a wind noise test for the sound source assembly, and the air nozzle is in fluid communication with a pump set through an air guide pipeline; the artificial ear assembly is correspondingly arranged under the wind nozzle, a main body of the artificial ear assembly is a tubular outer shell, a limiting bayonet is formed in the top end of the outer shell and used for fixing the sound source assembly to be detected, and an audio detection piece is arranged in the bottom end of the outer shell to collect acoustic signals of the sound source assembly in the wind noise environment. According to the invention, a fitting degree quantification structure of deformation of the elastic soft film is matched with an airflow channel switching structure driven by the reversing plug, a test condition close to a real use scene is constructed, the structure can accurately reproduce actual working conditions of earphone wearing loosening and airflow interference, a multi-factor coupling test of ANC intervention and airflow injection under a fitting gap is realized, and the test efficiency is improved. And the influence degree of the airflow on the ANC noise reduction effect and the tone quality is quantified.

The utility model belongs to the technical field of railway vehicles and key parts, and particularly relates to a bolt hot pier forming device which comprises a bottom block and an upper plate. The utility model relates to a hot upsetting die, which comprises two pull rods, an adjusting nut, a lower plate, an ejector rod cushion block, a lower die plate, a pressing plate, a lower cushion block, an air cylinder, an air cylinder cushion block, an air cylinder head, a die barrel, a sliding block and an upper die plate, the number of the pull rods is two, and the two pull rods are symmetrically and fixedly connected to the top of a bottom block. 2, the tool can be used for bolts of the same kind at present; 3, the product can be directly taken out from the tool without disassembling the tool after each assembly is completed, the product can be directly used if the product structures are the same in later use, the lower die frame can be disassembled and assembled if the product structures are different, the lower die frame can be disassembled and assembled at any time according to the situation, different bolts can be machined, clamping is rapid and accurate, the upper die and the lower die are assembled separately, assembling is convenient, and the production efficiency is improved. And after the product is processed, the consistency of the product can be ensured, and the product quality meets the requirements.

This utility model discloses a fabric strip clamping device for a flatbed sewing machine, relating to the field of sewing machine technology. Addressing the issue that existing manual operation by operators easily leads to operator fatigue during prolonged work, affecting the stability and accuracy of clamping and fixing, and that mechanical clamping devices typically have a fixed width and lack flexibility, this invention proposes the following solution: It includes a base plate and a computerized flatbed sewing machine. An outer plate is mounted on the upper end of the base plate via a column, and a moving mechanism is provided on one side of the base plate. The upper end of the moving mechanism is connected to the computerized flatbed sewing machine. Clamping mechanisms are connected to both sides of the upper end of the base plate. The clamping mechanisms are movable downward pressing structures used to press down and clamp the fabric strip for fixation. In this utility model, the moving plate, through a square plate on one side, drives a second electric push cylinder and a pressure plate to adjust the spacing width, improving the versatility and adaptability of the clamping mechanism and meeting diverse production needs.

The utility model relates to the technical field of quenching of valve body class parts, disclose a workpiece automatic clamping mechanism, including base, still include the spring chuck for clamping workpiece of installing on the upper portion of base, the middle part of spring chuck is equipped with the accommodation cavity for workpiece insertion, the outside of spring chuck has the sliding sleeve, the sliding sleeve is the hollow structure, its lower part is sleeved on the base and can slide up and down, the upper periphery surface of spring chuck is the outer taper surface that spreads upwards, the upper inner periphery surface of sliding sleeve is equipped with the inner taper surface cooperation with outer taper surface, when the inner taper surface cooperates with outer taper surface, spring chuck clamps workpiece tightly. The utility model discloses workpiece automatic clamping mechanism, realizes the automatic clamping of the part needing quenching, and the application range is wide.

The utility model discloses a kind of battery connection terminal processing positioning mechanism, the utility model relates to battery connection terminal processing technical field;Including: base, it is characterized in that: the top of the base is fixedly connected with support structure and heat dissipation structure, the inner wall of the support structure is fixedly connected with positioning structure, the positioning structure includes fixed frame, the outer wall of the fixed frame is fixedly connected with the inner wall of support structure, the inner wall of the fixed frame is fixedly connected with driving motor, the output shaft of the driving motor is fixedly connected with gear, the outer wall of the gear is symmetrically engaged with rack, the outer wall of the rack is fixedly connected with positioning rod, the outer wall of the positioning rod is fixedly connected with locating block.Compared with traditional manual adjustment positioning, the structure can avoid the deviation error of manual operation, and the sliding groove provides stable sliding trajectory for the positioning rod, effectively prevents the shaking when the positioning rod moves.

The utility model discloses an automatic production line for connecting rod production belongs to connecting rod rough grinding technical field, and the side of fixed base is equipped with production line support, and the upper end both sides of this production line support are equipped with ball screw drive assembly, and the lateral wall of production line support is equipped with second drive assembly, and second drive assembly is connected with ball screw drive assembly through transmission belt, and the movable seat of two ball screw drive assemblies is equipped with sliding support, and the inner wall of sliding support is equipped with slide rail. The connecting rod positioning and clamping mechanism realizes accurate positioning and firm clamping of the connecting rod to be processed with the help of T type sliding slot, T type key and abutting assembly, improves the machining stability and precision, avoids the machining error, and the abutting block can be replaced to adapt to different size connecting rods. The connecting rod polishing mechanism realizes accurate polishing to the connecting rod through servo motor, transmission gear box and grinding head cooperation. Because the connecting rod has been accurately positioned and clamped, the grinding head can be in constant contact with the connecting rod surface when rotating and polishing, and ensures that polishing is uniform and consistent.

The utility model discloses a positioning clamp for machining, and belongs to the technical field of machining. A placement block is welded to the top face of the bottom plate, limiting assemblies are installed on the two opposite sides of the top face of the bottom plate, each limiting assembly comprises a first electric push rod, a limiting rod is installed at the top end of each first electric push rod, and a fixing screw is connected to each limiting rod in a penetrating and threaded mode. A positioning assembly is installed in the middle of the top face of the bottom plate and comprises an outer frame. The two opposite sides of the outer wall of the outer frame are each provided with two adjusting grooves, one side of the top face of the outer frame is fixedly connected with a connecting plate, a second electric push rod is installed on one side of the connecting plate, a limiting block is installed at the bottom end of the second electric push rod, and adjusting screws are connected to the adjusting grooves in a penetrating and threaded mode. Through cooperation of the limiting assembly and the positioning assembly, the first electric push rod drives the limiting rod to vertically move so as to adapt to workpieces with different heights, the design that the fixing screw rod is combined with the notch facilitates position calibration and locking in the vertical direction, and the positioning precision is guaranteed.

The utility model discloses a convenient right angle welding's tool fixture, including L shaped support plate, the top of L shaped support plate is installed with X axis clamping mechanism and Y axis clamping mechanism, the X axis clamping mechanism includes X axis hand wheel, X axis screw, X axis sliding bar, X axis fixed plate, X axis movable plate and X axis clamping plate, Y axis clamping mechanism includes Y axis clamping plate, Y axis movable plate, Y axis fixed plate, Y axis sliding bar, Y axis screw and Y axis hand wheel. Two clamping mechanisms are 90 degrees perpendicular, and the accurate positioning workpiece is right angle state, and cooperation L shaped support plate and support foot bottom end mounting hole fixed, ensure that tool welding is stable. The tool fixture is simple and easy to operate, effectively improves right angle welding quality and efficiency, reduces production cost, and is suitable for a variety of workpiece right angle welding scene.

The utility model discloses a kind of line integration devices for internet equipment, including fixed plate, the top end both sides edge of the fixed plate is evenly provided with multiple equidistantly arranged fixing pieces, the fixing piece is composed of two first fixed cylinder and second fixed cylinder oppositely arranged, and second fixed cylinder is located directly below first fixed cylinder, the first fixed cylinder and second fixed cylinder left and right sides are integrally formed with side plate. The utility model is fixed by unique fixing piece design, utilize internal fixing mechanism accurate to line clamping constraint, prevent shaking displacement, multiple fixing pieces can simultaneously integrate and fix multiple lines, cooperate external fixing mechanism operation convenient, realize line orderly management, and limit plate in internal fixing mechanism adopts arc rubber plate, can adapt to different shape thick and thin line, protect line from being damaged, by spring flexible adjustment, prolong line service life, reduce maintenance cost and equipment failure risk.

The utility model belongs to the field of oiling, provide a kind of gear reducing unit processing oiling equipment, including fixed base, oil delivery assembly, rotating mechanism and alignment subassembly, the four corners of fixed base top are all provided with support, and the top between four groups of support is provided with oil tank, the bottom of oil tank is provided with oil delivery assembly and the rotating mechanism of driving oil delivery assembly rotation, and oil delivery assembly has the adjusting mechanism of adjustable oil delivery range, and fixed base is provided with the alignment subassembly for calibrating the placement position of gear reducing unit;The utility model is provided with oil delivery assembly by adjusting mechanism, accurately controls the oil outlet position and range of lower oil pipe, can flexibly adapt the oiling range of different size spare parts, avoid the limitation of traditional fixed equipment, and rotating oiling mechanism utilizes motor drive gear transmission, so that oil is evenly coated to critical position, significantly improves coating uniformity and lubricating effect, improves oiling efficiency.

The invention provides a machining tool and method for a cabin door locking component on flight equipment. The machining tool comprises a base, a first positioning piece, a second positioning piece, a third positioning piece, an electric driving mechanism and a control unit. Through the synergistic effect of the movable first positioning piece, the fixed second positioning piece and the fixed third positioning piece, the positioning and clamping system special for the cabin door locking component is constructed. The second positioning piece and the third positioning piece can stably limit the cabin door locking component simultaneously from two vertical directions due to the unique positioning part design, and the first positioning piece applies pressure from the other side to complete clamping. The structural design is ingenious, one-time rapid and accurate clamping of a cabin door locking component with a complex space structure is achieved, and a solid foundation is laid for subsequent continuous machining of a plurality of to-be-machined parts such as a hook-shaped bent part, a plurality of holes and an extension shaft; the problems of low efficiency and repeated positioning errors caused by sequential clamping machining are fundamentally solved.

This invention discloses a turbine blade spraying clamping fixture, relating to the field of turbine blade thermal barrier coating preparation technology. It includes a lower connecting rod, a lower frame, and an upper frame coaxially assembled sequentially, as well as an adjustable support assembly, a radial positioning assembly, and a counterweight balancing assembly. Currently, the tooling and processes used in turbine blade thermal spraying preparation have significant technical deficiencies, failing to meet the mass production requirements of high-end equipment. This invention achieves high-precision clamping of turbine blades and full-process controllable coating quality through modular tooling design and a zoned closed-loop spraying process.

The utility model relates to punch die technical field discloses a kind of split punch dies, including bottom plate, the bottom of bottom plate is fixedly connected with two fixed plate a, the bottom of two fixed plate a is fixedly connected with support plate a, the bottom of bottom plate is fixedly connected with driving assembly, the right side of driving assembly is fixedly connected with sliding block, the outside of sliding block is fixedly connected with rack, the top of support plate a is fixedly connected with two guide rails, the inner wall of two sliding blocks is slidably connected in the outside of guide rail, the top of support plate a is fixedly connected with fixed column, the outside of fixed column is rotatably connected with gear, two rack and gear are engaged. In the utility model, cylinder a drives sliding block synchronous reverse motion, makes positioning plate accurate positioning and power-assisted stripping, cylinder b drives clamping plate accurate clamping, guarantees stamping stability, and each component is orderly reset, can promote production efficiency and product quality.

The utility model provides automatic detection and calibration equipment for eccentricity of a printing rubber roller, which relates to the technical field of detection and calibration of the printing rubber roller and comprises a calibration table, an adjusting groove is formed in the top of the calibration table, and two mounting grooves are formed in the top of the calibration table and located on the front side of the adjusting groove. A clamping and positioning mechanism extending to the top of the mounting groove is arranged in the mounting groove, a detection mechanism extending to the top of the adjusting groove is arranged in the adjusting groove, and a calibration grinding mechanism is arranged on the front side of the detection mechanism. The automatic detection and calibration equipment for the eccentricity of the printing rubber roller effectively helps a user to properly adjust, position and fix the printing rubber roller according to the specification and size of the printing rubber roller, improves the axial stability of the printing rubber roller during calibration, and dynamically grinds and calibrates a detected uneven eccentric area; and a user is effectively helped to conduct adjustment, detection and calibration according to printing rubber rollers of different specifications and sizes, and the applicability of the equipment is improved.

The utility model provides a kind of frame support positioning type switch cabinet bus structure, comprising: box, support frame and positioning mechanism, support frame is installed in box;Support frame includes: locating post, locating post is equipped with four, and positioning mechanism is equipped between every two locating posts, and positioning mechanism both ends are fixedly connected with locating post by bolt;Positioning mechanism includes: first fixed component, second fixed component, mounting seat, sliding mechanism, locking mechanism and clamping mechanism, mounting seat is located between two locating posts, first fixed component support mounting seat one end, second fixed component support mounting seat other end, and first fixed component and second fixed component are positioned on locating post by bolt.

The utility model relates to a fixture device for an automobile mould, which comprises a driving seat, supports, fixture components and a vertical rotating mechanism, the fixture components are respectively arranged on the supports, the supports are arranged on the driving seat, the driving seat drives the supports to get close to each other or get away from each other, and the vertical rotating mechanism is arranged on the driving seat. The driving seat is fixed on the vertical rotating mechanism, the vertical rotating mechanism comprises a speed reducing motor, a worm gear I, a worm I, a bearing seat I, a bearing seat II and a connecting table, the speed reducing motor drives the worm I to rotate, and the worm and the worm gear are in meshed transmission to drive the connecting table to rotate back and forth; the connecting table can drive the automobile die to rotate by a proper angle in a vertical plane, and the surface of the die and the cutting direction of a cutter can keep a more ideal angle relation, so that the cutter can cut in the direction nearly perpendicular to the machined surface, the situation that the cutting force of the cutter is not uniform is reduced, and the machining precision is improved.

The utility model discloses a kind of working platform for valve body strength test, including base and test bin being set on base, placing table and the clamping structure for being used to fix valve body are arranged in the test bin, the top of the test bin is provided with electric telescopic link and the free end of electric telescopic link extends to inside;The clamping structure includes support frame and screw rod rotationally arranged in opposite side walls in support frame, the side wall of the test bin is provided with driving motor and power output shaft is connected with screw rod, the side of the support frame is provided with guide slot, the screw rod is provided with two groups of thread group with opposite thread direction, further including two groups of thread block respectively with two groups of thread group screw connection and another end of thread block is penetrated and slidingly arranged in guide slot setting is set in guide slot.The utility model relates to valve body test technical field, specifically provides a kind of working platform for valve body strength test.

The utility model discloses an intelligent temporary storage frame of AGV dolly, include: bottom frame, the bottom frame top is equipped with the top frame, the both sides of inside of bottom frame are equipped with inner frame, and the bottom frame is used for storing AGV dolly, front and back flap plate subassembly, front and back flap plate subassembly is provided with two groups, lifting subassembly, lifting subassembly sets up in the bottom of inside of inner frame, and lifting subassembly is used for lifting the material on AGV dolly, the utility model discloses through front and back flap plate subassembly and left and right flap plate subassembly cooperation, the semiconductor material on AGV dolly is positioned, then through lifting subassembly and lifts the semiconductor material after positioning, then again through front and back flap plate subassembly and left and right flap plate subassembly cooperation, the semiconductor material after lifting is clamped tightly, thereby realizes the storage of semiconductor material, and this can accurate positioning and clamping tightly the semiconductor material of waiting storage, in the process of transfer, avoid shaking or deviation and lead to semiconductor material collision, slip and fall.

The utility model provides a kind of economizer tube bank welding auxiliary alignment device, it is related to welding auxiliary equipment technical field, including bottom plate, further include: alignment subassembly, alignment subassembly includes the support seat being connected on bottom plate, in the utility model, the pipe body to be welded is placed in predetermined position, the output end of pneumatic cylinder promotes clamping block movement, and one end of pipe body is clamped and fixed, ensure the stability of welding process, subsequently, sliding block on guide rod is slid to predetermined position, limit rod and expansion spring drive pressure block down, by the elastic action of expansion spring, the other end of pipe body is limited by pressure block, prevent its displacement in welding process, ensure that pipe mouth accurate level alignment, second transmission motor drives rotating wheel rotation, drive rotating plate to rotate on support block, so that pipe body is rotated, convenient for pipe body to be welded, realize pipe body accurate positioning, stable clamping and rotating adjustment, guarantee welding alignment precision and welding efficiency.

The utility model provides a Rogowski coil fixing tool for insulation resistance testing, which relates to the technical field of insulation resistance testing, and comprises a fixing tool, in the utility model, the fixing tool is firstly placed on a steel rail surface, the steel rail is adsorbed by utilizing the magnetic force of a strong magnet, a Rogowski coil is placed at a corresponding position of the fixing tool, and a clamping pin is positioned at the upper part of a groove of the tool; the positioning assembly is used for positioning the Rogowski coil, meanwhile, the screw and the positioning pin are matched and locked to prevent the Rogowski coil from shifting, then the positioning assembly is installed at the preset position of the fixing tool, the push block and the first telescopic spring are pushed to drive the moving block and the positioning plate to move, and through cooperation of the rotating block, the first limiting groove and the second limiting groove, the Rogowski coil is positioned. After the push block is loosened, the spring rebounds to enable the positioning plate to tightly press the Rogowski coil, the position of the Rogowski coil is ensured to be fixed, rapid disassembly and assembly, anti-vibration stability and accurate positioning and stable clamping of the Rogowski coil are achieved, and the device is suitable for high-precision measurement of railway insulation resistance.

This invention proposes an ultrasonic casting system for wear-resistant zinc-aluminum alloy castings, belonging to the field of alloy casting equipment. It solves the problems of unstable molten metal flow rate, difficulty in temperature control, coarse grains caused by modifier failure, and mold splashing during casting caused by manual pouring in the production of wear-resistant zinc-aluminum alloy castings. The system includes a tundish, an ultrasonic treatment system, a flow-guiding mold, and a mold positioning mechanism. The flow-guiding mold is located at the bottom of the tundish, and a heating device is located on the outside of the tundish. A push rod is located on the top cover, with its bottom inserted into the flow-guiding mold. The ultrasonic treatment system includes a transducer, an ultrasonic generator, an amplitude transformer, and a guide rod. The guide rod penetrates the top cover, with its bottom extending below the molten metal surface. The top of the guide rod is connected to the amplitude transformer, which is connected to the transducer, and the transducer is connected to the ultrasonic generator. A mold positioning mechanism is located below the flow-guiding mold. It is mainly used for casting zinc-aluminum alloy castings.

The utility model discloses a fixing tool for elbow machining, which relates to the field of machining and comprises a tool body and a hollow area arranged at the middle end of the tool body, and a first inner threaded hole and a second inner threaded hole are respectively arranged on the left side and the upper end of the tool body. An inner lower side face is arranged at the lower end of the hollow-out area in the tool body. According to the fixing tool for bend machining, a workpiece is fixed through the hollowed-out area formed in the tool body, the inner lower side face and the inner right side face are used for storing micro-welding 90-degree bend blank square stock, the right angle and the circular groove of the micro-welding 90-degree bend blank square stock are protected to be located on the back face of the tool through the arrangement of the receding holes, and the cover plate is stored in the circular groove; according to the fixing tool device, a workpiece can be accurately positioned and clamped, the workpiece can be kept at the correct position and posture in the machining process, machining errors are reduced, and therefore the size precision, the shape precision and the position precision of the machined workpiece are guaranteed.

This invention discloses a flexible assembly fixture and method for aircraft winglets, comprising: a robot and an end effector, a fixture frame, positioning pins, positioning-clamping components, an interface plate, and a storage rack for the positioning-clamping components. The robot is used for automatic reconfiguration of the fixture; the robot's end effector is used for installing and removing the positioning-clamping components; the fixture frame is welded from columns and beams, with threaded holes distributed on each column and beam for mounting components; the positioning pins are installed on the fixture frame through the threaded holes; the positioning-clamping components are installed on the fixture frame through the interface plate to position and clamp the winglets; the interface plate is installed on the main fixture frame through the threaded holes; unused positioning-clamping components can be placed in its storage rack. This invention has the advantages of intelligent reconfigurability, high automation, adaptive support, and stable clamping, and is suitable for the assembly needs of various winglet specifications.

The invention discloses a building wall water seepage detection device, and relates to the technical field of water seepage detection, the building wall water seepage detection device comprises a motion device, a moisture meter and a sling, the sling is used for being installed on a to-be-detected wall, the moisture meter is installed at the bottom of the motion device, and the motion device and the moisture meter are both in transmission connection with the sling. By means of cooperation of an anti-skid powder box and a powder passing groove in the auxiliary displacement assembly, when the moving device moves along the sling, the friction force between a transmission roller and the sling is remarkably increased, a first motor in the driving assembly is matched to drive a rotating plate and a push column to drive a sliding base and a limiting frame to move, and accurate clamping of a second transmission roller to the sling is achieved; the device can be rapidly and stably stopped when the moisture meter detects water seepage, interference of shaking of a moving device on a sensor is avoided, the multi-angle adjusting function of a first steering engine and a second steering engine on an infrared probe is combined, the detection accuracy of a water seepage area is ensured, and the problem that an existing device is insufficient in detection accuracy due to shaking is effectively solved.

The utility model relates to a special convex rib aligning and clamping device for self baking electrode cylinder welding, which comprises a main clamping block (1), an auxiliary clamping block (2), a clamping power cylinder (3) and a connecting rod piece (4), the inner side of the main clamping block (1) is provided with an arc clamping concave surface (11), the middle part of the main clamping block (1) is provided with a transverse groove (12) and a vertical groove (13), the upper side and the lower side of the auxiliary clamping block (2) are respectively provided with a connecting arm (21), and the clamping power cylinder (3) is connected with the connecting rod piece (4). An end hinge pin (22) and a middle hinge pin (23) are arranged on the connecting rod piece (4), a cylinder body of the clamping power cylinder (3) is connected with the main clamping block (1) in a hinged mode, a piston rod of the clamping power cylinder (3) is connected with the middle hinge pin (23) in a hinged mode, and the two ends of the connecting rod piece (4) are respectively connected with the middle hinge pin (23) on the two auxiliary clamping blocks (2) in a hinged mode. The automatic aligning and clamping device can be used for automatically aligning and clamping the convex ribs of the electrode cylinder, is accurate in aligning and firm in clamping, and is beneficial to improving the welding efficiency and the welding quality.

This utility model discloses a hoisting device for particleboard after production and forming, including a hoisting frame and a particleboard clamping device assembly. The particleboard clamping and placing assembly includes: a base connecting plate, which is bolted to one end of a side plate; a lifting hydraulic cylinder is installed on the upper end of the base connecting plate; a lifting guide column is telescopically moved on the upper end of the lifting hydraulic cylinder; a fixing plate is installed on the upper end of the lifting guide column; the fixing plate is bolted to the upper end of a clamping moving plate; and the side plate is fixedly installed on both sides of the hoisting frame. Driven by the lifting hydraulic cylinder, the particleboard can be clamped quickly and accurately. The coordinated action of multiple clamping plates ensures that each particleboard is evenly clamped, avoiding slippage or falling of the particleboard due to unstable clamping. It ensures that the clamping plates are clamped synchronously on the same horizontal plane, avoiding uneven force distribution and the tediousness and instability of manual binding. Multiple particleboards can be hoisted simultaneously, improving production efficiency.

This utility model relates to the field of bridge engineering, specifically a test device for the assembly tolerance of bridge expansion joints. It includes a support platform, slider, limiting plate, L-shaped clamp, servo motor, bidirectional screw, sliding block, support frame, hydraulic rod, pressure plate, mounting plate, pressure device, and slide groove, among other structures. Using this utility model can significantly improve testing efficiency, quickly complete a large number of expansion joint inspections, and meet the high-efficiency requirements for expansion joint quality inspection in modern bridge construction and maintenance.