94results about How to "Avoid eccentricity" patented technology

The invention relates to the technical field of stability tests in optical systems, in particular to an omni-directional adjusting mechanism suitable for a welded corrugated pipe in an optical system, which comprises a vacuum cavity, a plurality of connecting pipes are uniformly mounted outside the vacuum cavity, and one end, far away from the vacuum cavity, of each connecting pipe is fixedly connected with a connecting flange plate; a welding corrugated pipe body is fixedly connected to the connecting flange plate through bolts, optical equipment is fixedly installed at the end, away from the vacuum cavity, of the welding corrugated pipe body, and a limiting mechanism is arranged on the welding corrugated pipe body. When the welded corrugated pipe is excessively twisted, a limiting switch is used for generating signal feedback, a six-axis adjusting platform conducts reverse adjustment, the situation that a welded corrugated pipe body exceeds the yield limit is avoided, integrated synchronous locking of a plurality of second locking screws is achieved through a tightening assembly, and the problem of eccentricity caused by inconsistent tightening degrees is avoided.

The invention provides an NC30Fe high-chromium nickel-based alloy pierced billet as well as a preparation method and application of the NC30Fe high-chromium nickel-based alloy pierced billet. The preparation method comprises the following steps: firstly, heating an NC30Fe high-chromium nickel-based alloy tube blank to a specific charging temperature, and perforating by utilizing a hot cross rolling perforation process; in the punching process, it is ensured that the dimensional tolerance and eccentricity of a pierced billet meet the requirements by strictly controlling the roller distance, the top temperature and the extension coefficient; and then, quenching treatment is carried out on the pierced billet subjected to perforation, so that the grain size is controlled to be within the range of grade 3 to grade 7, and the high-temperature strength and creep resistance of the material are improved. According to the preparation method disclosed by the invention, through introduction of a hot cross piercing process, the problems of more surface defects, large eccentricity and difficulty in grain control caused by a traditional hot extrusion process are solved, the yield is increased to 93% or above, and the surface smoothness and the dimensional precision are remarkably improved. The pierced billet is suitable for preparation of high-temperature corrosion-resistant and high-precision nickel-based alloy pipes in the fields of petroleum, chemical engineering, aerospace and the like, and has high application value.

The utility model relates to a battery cell spraying and feeding device which comprises a clamping and rotating mechanism used for clamping a battery cell and driving the battery cell to rotate, and further comprises a detection mechanism and a deviation rectifying mechanism, the detection mechanism is used for detecting whether the battery cell is eccentric or not and triggering the deviation rectifying mechanism when it is detected that the battery cell is eccentric, and the deviation rectifying mechanism is used for detecting whether the battery cell is eccentric or not. And the deviation correcting mechanism is used for correcting the deviation of the eccentric battery cell. According to the utility model, the detection mechanism and the deviation correction mechanism are arranged, the detection mechanism can detect whether the battery cell fed to the clamping and rotating mechanism is eccentric or not in time, and then the eccentric battery cell is corrected in time through the deviation correction mechanism, so that the battery cell is effectively prevented from being eccentric during feeding, and the situation that the thickness of the battery cell is not uniform during spraying is avoided.

The invention relates to a high-reliability leakage-free rotary fluid connector which comprises a fixed shell and a rotary shell, the fixed shell and the rotary shell form rotary connection at the connecting end in a hole shaft mode, a sealing sleeve and a bearing are arranged on a step shaft of the rotary shell, the sealing sleeve is provided with double-side sealing, a movable sealing ring is installed on the inner side of the sealing sleeve and makes sealing contact with the step shaft, and the bearing is arranged on the bearing. The sealing performance in the under-pressure rotating process is fully guaranteed through the arrangement of multi-stage sealing and the spring plug ring, the bearing is used as a rotating supporting assembly and matched with the sealing sleeve, reliable supporting is formed on the rotating shell, rotating resistance is reduced, and the positioning precision and coaxiality are improved. Abrasion caused by deflection in the rotating process is prevented, and the service life is prolonged.

The utility model belongs to the field of electric reactors, and relates to an electric reactor iron core column limiting device which comprises an insulating plate and a matched fastening piece, the insulating plate is semicircular, a semicircular arc-shaped groove is formed in the circle center position of the insulating plate, and the insulating plate covers a lower clamping piece limb plate through hole in a lower clamping piece limb plate. The inner diameter of the semi-arc-shaped groove of the insulating plate is matched with the outer diameter of the iron core column, the two sides of the semi-arc-shaped groove are chamfered, a screw hole is formed in the position, corresponding to the through hole of the limb plate of the lower clamping piece, of the insulating plate, and the matched fastening piece comprises a bolt, a first nut, a second nut and a third nut. The bolt penetrates through a lower clamping piece limb plate through hole in the lower clamping piece limb plate and a screw hole in the insulating plate, the first nut and the second nut are arranged on the bolt in a sleeving mode and located on the two sides of the insulating plate, and the third nut is arranged on the bolt in a sleeving mode and located above the lower clamping piece limb plate. According to the utility model, overlarge displacement during installation of the iron core column can be prevented, and the problem of eccentricity caused by slipping after contact between the iron core column and the adhesive is solved.

The utility model relates to bag making machine technical field discloses a kind of non-woven fabric three-dimensional bag making machine with rubber sticking deviation correction, including bag making machine ontology, bag making machine ontology side is provided with support, support inside is provided with winding roller, support inner wall side is rotatably connected with limit roller one, support inner wall is rotatably connected with limit roller three close to limit roller one side, support inner wall is equipped with tensioning adjusting mechanism, support outer wall side is fixedly connected with mounting bracket, the mounting bracket inside is equipped with mounting mechanism.In the utility model, the basic tension is set by rotating screw one, and the dynamic tension fluctuation is absorbed by the buffer assembly composed of spring one. This static adjustment and dynamic buffering combination solves the wrinkle and deformation problem caused by uneven tension of the fabric, ensures constant conveying tension, and improves the finished product size precision and quality consistency.

The invention relates to the technical field of enameled round wire processing equipment, and discloses an enameled round wire anti-pinch winding reel guiding and limiting structure which comprises a workbench, the top of the workbench is fixedly connected with a deviation rectifying mechanism, and the deviation rectifying mechanism is used for conducting real-time guiding and deviation rectifying on an enameled round wire in the winding process to prevent uneven winding or wire clamping. The top of the workbench is fixedly connected with a supporting frame, the top of the supporting frame is fixedly connected with a limiting mechanism, the limiting mechanism is used for conducting internal tight supporting and fixing and rotary driving on a winding reel and adapts to installation of winding reels of different specifications, and the top of the workbench is fixedly connected with a cutting mechanism. An electric push rod drives a connecting rod to drive a first sliding block to slide in a first fixing frame, then a deviation rectifying roller is driven to do horizontal reciprocating motion, the problem that in the traditional wire winding process, wire accumulation or uneven gaps are likely to occur is solved, the tightness and uniformity of wire arrangement on a winding reel are guaranteed, and the production efficiency is improved. And the overall production quality of the product is improved.

The application relates to an argon pressure maintaining and cooling integrated device for stainless steel pipeline welding, and relates to the technical field of metal material welding, which comprises a welding bin, the outside of the welding bin is provided with an argon pressure maintaining mechanism, the inside of the welding bin is provided with a cooling mechanism, the argon pressure maintaining mechanism comprises a gas storage tank, the outside of the gas storage tank is fixedly connected with a blower, the outside of the blower is fixedly connected to the top of the welding bin, the outside bottom side of the welding bin is provided with a filtering assembly, and the outside of the filtering assembly is fixedly connected to the outside of the gas storage tank. The application has the advantages that through an argon circulation system, the gas storage tank, the blower and the filtering assembly are cooperatively operated, the resource utilization efficiency is improved while the welding quality is ensured, argon is delivered to the welding bin by the blower to form a protective gas layer, oxygen is effectively isolated, oxidation during the welding of the stainless steel pipeline is prevented, and the welding process is efficient, environmentally friendly and economical.

The technical scheme belongs to the field of cutting and slitting machines, and particularly relates to a cutting device of a cutting and winding machine, which comprises a rack, the rack is provided with a cutting mechanism, the cutting mechanism comprises a first knife roll and a second knife roll which are rotatably arranged relative to the rack, the two knife rolls are tangent and matched, and a paper material passes between the first knife roll and the second knife roll; the strip cutting driving part is used for driving the first knife roll to rotate so as to be matched with the second knife roll to cut the paper material into a plurality of material strips; the pressing adjusting assembly comprises an adjusting rod in threaded fit with the first knife roll, the adjusting rod rotates to drive the first knife roll to move relative to the second knife roll, the slitting driving part drives the first knife roll to rotate, and the paper material is continuously cut into material strips when passing through a channel formed by tangency of the first knife roll and the second knife roll; an adjusting rod of the pressing adjusting assembly accurately controls axial displacement of a first knife roll through thread transmission, stepless adjustment of a paper material channel is achieved, the cutting precision is kept, and the adaptability of paper materials of different thicknesses and the equipment maintenance efficiency are improved.

This invention discloses a production line and equipment for surface correction of electro-galvanized steel wire, relating to the field of surface correction technology for electro-galvanized steel wire. It includes a functional box, a robotic arm, and a first clamping cylinder. A first servo motor is housed in a protective shell at the top of the outer wall of the functional box. The first servo motor is connected to the robotic arm via a rotating shaft. The robotic arm is connected to a first cylinder via a connecting rod. A first drawing die is mounted on the side of the outer wall of the first cylinder. A second servo motor inside the first cylinder is connected to a transmission shaft via a helical gear set. The transmission shaft is connected to the first clamping cylinder via threads on the outer wall. This invention, by installing a functional box, robotic arm, first cylinder, first clamping cylinder, limit ring, first servo motor, and second servo motor, achieves rapid and safe replacement of the drawing die, avoiding direct contact between workers and the high-temperature die, eliminating the risk of burns, greatly improving production efficiency and safety, and ensuring product quality stability.

The utility model provides an electric track engineering forklift, which belongs to the technical field of track engineering forklifts and comprises a forklift body, the forklift body is provided with an operation board, a safety column is arranged on the forklift body, a supporting column is arranged on the safety column, and a tire disc is arranged on the forklift body. Goods are forked or placed through operation of the electric crawler forklift, the problems that a wheel train bridge type differential wheel train vehicle is poor in trafficability, stable in walking, high in obstacle crossing capacity, high in flexibility, small in turning radius and free of special requirements for the terrain during turning are solved in the running process, the motor drives the vehicle to walk, soft starting and soft stopping can be achieved, the driving feeling is smooth in the starting process, and the driving safety is high. When the fork forks goods, a sideslip and toppling prevention device is additionally arranged, the inclination angle is increased, electro-hydraulic proportional valve control is adopted, differential control over steering wheels and differential control over inner and outer side wheel trains during in-situ rotation are achieved, a traditional hydraulic rod operation mode is omitted, and valve clamping is avoided to a certain extent.

The invention relates to the technical field of heat preservation pipes, in particular to a polyurethane heat preservation pipe heat preservation layer manufacturing process which comprises the following steps that S1, a conveying pipe penetrates through a protection pipe, the two ends of the protection pipe are connected with the conveying pipe through a support, and the protection pipe and the two ends of the conveying pipe are in a concentric state; the material injection opening is formed in the protection pipe, and then the fixing frame is arranged on the conveying pipe. The outer wall of the protection pipe is fixed after pipe penetrating, so that the problem that the thickness of a manufactured heat preservation layer is not uniform due to the fact that the protection pipe is eccentric due to the fact that the protection pipe collapses under the action of gravity is avoided, and therefore on the premise that the use of a wood block support is reduced, the concentricity of the protection pipe and the conveying pipe can still be guaranteed, and the uniformity of the heat preservation layer is guaranteed; in this way, the service life of the polyurethane thermal insulation pipe is prolonged, use of wood block supports is reduced, pipe penetrating can be more convenient, and the manufacturing efficiency of a thermal insulation layer of the polyurethane thermal insulation pipe is effectively improved.

The present invention discloses a rotary drum assembly of a washing machine and a washing machine. The rotary drum assembly comprises: a rotary drum; a water guide cover, wherein the water guide cover or the water guide cover and the rotary drum together define a drainage channel, wherein the water inlet of the drainage channel is located above the water outlet of the drainage channel, and the liquid rising in the rotary drum due to the centrifugal force enters the drainage channel through the water inlet and is discharged through the water outlet, and in the flow direction of the liquid in the drainage channel, the flow area of ​​the drainage channel at the upstream position is smaller than the flow area of ​​the drainage channel at the downstream position. According to the rotary drum assembly of the washing machine of the embodiment of the present invention, by setting the flow area of ​​the drainage channel at the upstream position to be smaller than the flow area of ​​the drainage channel at the downstream position, it is ensured that water can be discharged in time during the drainage process, and the eccentricity of the rotary drum caused by water accumulation above the rotary drum is prevented, and the rotary drum is prevented from hitting the washing machine box during operation, thereby ensuring the safety of dehydration.

The utility model relates to the technical field of hole drilling rods, in particular to a mine reaming drilling rod which comprises a drilling rod mechanism, the drilling rod mechanism further comprises a drilling rod body, a penetrating through hole is formed in the inner wall of the drilling rod body, a threaded groove is formed in the inner wall of one end of the drilling rod body, and the other end of the drilling rod body is connected with the threaded groove. The outer side of one end of the drill rod mechanism is provided with a hole expanding drilling tool assembly used for expanding the hole diameter of a mine drill hole. In the first step, the third reaming sleeve is used for primarily reaming an original drilled hole, then the reaming diameter is continuously increased through the second reaming sleeve, further, a drill bit on the outer side of the first reaming sleeve is cut in for reaming to form a basic hole with a larger diameter, and compared with single-stage reaming and multi-stage gradual reaming, the single cutting load can be reduced, and the machining efficiency is improved. And meanwhile, the risk that the hole wall roughness exceeds the standard or the drill bit is broken due to the fact that one-time reaming is too large is avoided.

The high-stability core tube comprises a first tube body and a second tube body arranged at the top of the first tube body, a supporting structure is arranged at the top of the first tube body, and a transmission structure located on the inner side of the supporting structure is arranged in the first tube body. The supporting structure comprises connecting blocks fixedly connected to the periphery of the inner wall of the first barrel, and the inner sides of the connecting blocks are movably connected with pressing plates through pin shafts. The extension plate is extruded through the transmission structure, the pressing plate connected with the extension plate is extruded and swings with the pin shaft on the surface of the connecting block as the axis, and when the outer surface of the pressing plate makes contact with the inner wall of the second barrel, the effect of supporting and positioning the second barrel is achieved. The eccentric phenomenon of the core tube installed through the connecting piece in the installation process is prevented, the connecting stability of the core tube is prevented from being affected, and collapse is avoided.

This invention belongs to the field of fire extinguishing materials and their preparation technology, and provides a fire extinguishing microcapsule and its microfluidic controllable preparation method. The preparation method is characterized by the following steps: (1) preparing fluids of each phase, (2) preparing a dual emulsion using a microfluidic device, (3) collecting and sealing the dual emulsion in a collection container, controlling the axis of the collection container to be horizontal, and controlling the collection container to rotate around its axis for 1 to 15 minutes, applying light to solidify the outer shell of the dual emulsion droplets while maintaining the rotation of the collection container, cleaning, and drying to obtain the final product. The fire extinguishing microcapsule prepared by this method consists of an outer shell and a liquid fluorine-containing fire extinguishing agent encapsulated within the outer shell. The outer shell of the fire extinguishing microcapsule has a uniform thickness, and the eccentricity between the outer shell and the core is less than 0.1. The method of this invention can achieve precise customization of fire extinguishing microcapsules according to the differentiated fire characteristics of different application scenarios, and can improve the concentricity between the core and the outer shell of existing fire extinguishing microcapsules.

The invention relates to an automatic wiring harness mounting double-check-ring device in a new energy automobile and a working method of the automatic wiring harness mounting double-check-ring device, and belongs to the technical field of new energy automobile compressor equipment. The automatic assembling machine comprises a discharging mechanism, a picking mechanism, a transferring mechanism, an assembling mechanism, a bottom plate, a stand column, a mounting plate, a taking and assembling position switching mechanism and a product positioning station, the mounting plate is connected with the bottom plate through the stand column, the assembling mechanism is connected with the mounting plate, the assembling mechanism and the taking and assembling position switching mechanism act in a matched mode, and the product positioning station is fixed to the bottom plate. The picking mechanism is connected with the assembling mechanism, and the discharging mechanism is arranged on one side of the bottom plate. The invention further provides a working method of the device for automatically installing the wire harness and the double check rings in the new energy automobile. The automatic assembling machine is safe and reasonable in structural design, stable and reliable, high in assembling consistency, high in efficiency and high in assembling quality, the labor cost is saved, and the use requirement is met.

The utility model provides a die core and die core seat dismounting device, which belongs to the technical field of lead extruders and comprises a hydraulic driving mechanism, a supporting seat, a dismounting seat and an ejector rob, the dismounting seat is fixed on the supporting seat and provided with a plurality of limit step holes respectively matched with die core seats of different specifications, and the ejector rob is fixed on the supporting seat. The hydraulic driving mechanism is fixed above the dismounting seat through the supporting seat, the ejector rod is positioned between the hydraulic driving mechanism and the dismounting seat, and the hydraulic driving mechanism is used for dismounting the mold core and the mold core seat through the ejector rod. The die core and the die core seat are disassembled by adopting the design of the limiting step holes matched with the die core and the die core seat and the matching of the hydraulic driving mechanism and the ejector rod, so that the problems of low production efficiency and damage to the die core caused by manually disassembling the die core are effectively solved, and the die core disassembling device has the advantages of high disassembling efficiency and low labor intensity; the device is particularly suitable for disassembling the mold core and the mold core seat on the continuous lead extruding machine.

A semiconductor processing device and its base support assembly include a central support pillar and at least three edge support pillars. The central support pillar coincides with the central axis of the base, limiting base eccentricity after heating and solving the eccentricity problem caused by the different linear expansion of the support pillar and the base. By reducing the cross-sectional area of ​​the central support pillar, the influence of light refraction and reflection on the thermal radiation optical path of the base is reduced. By reducing the contact area between the support pillar and the base, temperature conduction is reduced, thereby improving temperature uniformity. Each support pillar includes an upper pillar and a lower pillar made of different materials. The light absorption rate of the upper pillar is the same as or similar to that of the base, making the temperature difference between the upper pillar and the base approach zero, ensuring good temperature uniformity of the base. The upper pillar has extremely low thermal conductivity, which can block heat conduction from the upper pillar to the lower pillar, reducing heat loss, ensuring heat balance of the base, and improving the temperature distribution uniformity of the substrate.

The invention provides a pipeline guide module, a liquid cooling device and a data processing system. The pipeline guiding module comprises a base, a floating piece and a first elastic piece. The base is provided with a containing hole and a first limiting structure. The floating piece is arranged in the containing hole in a floatable mode. The first elastic piece is arranged in the axial direction of the containing hole and clamped between the first limiting structure and the floating piece. The pipeline guide module can be applied to the liquid cooling device and the data processing system to offset the bending stress of the pipeline and avoid leakage at the joint of the pipeline and the joint.

This invention discloses an injection molding apparatus and method for biodegradable plastic cups, relating to the field of plastic cup injection molding technology. The apparatus includes an injection molding machine, a lifting mechanism, a supporting mechanism, a positioning mechanism, a driving mechanism, a rotating mechanism, and an auxiliary mechanism. The lifting mechanism is mounted on top of the injection molding machine, the supporting mechanism is mounted at the bottom of the lifting mechanism, the positioning mechanism is mounted at one end of the supporting mechanism, the driving mechanism is mounted at the other end of the supporting mechanism, the rotating mechanism is mounted between the driving mechanism and the positioning mechanism, and the auxiliary mechanism is mounted above the positioning mechanism. This invention utilizes the coordinated arrangement of the lifting mechanism, supporting mechanism, positioning mechanism, and driving mechanism to facilitate the movement of the molded plastic cup to the positioning mechanism via the lifting and driving mechanisms. Combined with the elasticity of the supporting mechanism, the auxiliary mechanism can polish the rim of the plastic cup, improving the efficiency of rim treatment and enhancing the quality of the finished plastic cup.

The invention discloses a wafer supporting structure and a vapor deposition device thereof. The wafer supporting structure comprises a wafer tray used for carrying a wafer, and the wafer tray comprises a substrate and an edge part surrounding the substrate; the bearing ring is arranged around the wafer tray, the bearing ring comprises an annular main body part and a carrying part extending towards the inner side from the main body part, at least part of the carrying part is located below the edge part, and the top surface of the main body part is at least higher than the bottom surface of the edge part; the wafer tray and the bearing ring are both supported on the rotating drum in a contact mode, and a first gap enabling the bearing ring and the wafer tray to be completely separated is formed between the bearing ring and the wafer tray; the outer diameter of the bearing ring is larger than that of the rotary drum. According to the invention, the edge heat dissipation of the wafer tray can be reduced, the temperature distribution on the surface of the wafer is more uniform, the process requirements are better met, and the problems that the wafer tray is easy to crack and the service life is relatively short are effectively solved.

The utility model provides a novel stator structure, and belongs to the field of motors. The problem that vibration noise is easily generated when an existing inner rotor rotates in a stator is solved. The novel stator structure comprises a stator body with a shaft hole, a plurality of opening type stator grooves are uniformly distributed in the inner circumference of the shaft hole in the circumferential direction, each groove body adopts a radial opening design, the stator body is divided into a plurality of independent stator winding blocks through the stator grooves distributed at intervals, and vibration buffering devices are arranged on the inner circumference surfaces of the shaft holes of the stator winding blocks. The vibration buffering device comprises a movable groove, an elastic protection plate and a rolling assembly, the movable groove is located in the inner circumferential surface of a shaft hole of the stator winding block, mounting pillow blocks are arranged on the two axial sides of the movable groove, and the inner arc face of the elastic protection plate and the shaft hole are kept concentric. And each pin roller is movably mounted in a T-shaped movable cavity formed by matching the elastic protection plate and the mounting plummer block through the bearing assemblies at the two ends. The shock absorber has the advantages of shock absorption and noise reduction.

The application relates to an automatic wire harness double-stop ring device in a new energy automobile and a working method thereof, and belongs to the technical field of new energy automobile compressor equipment. The application comprises a discharging mechanism, a picking mechanism, a transfer mechanism, an assembling mechanism, a bottom plate, a stand column, a mounting plate, a taking and assembling position switching mechanism and a product positioning station, the mounting plate is connected with the bottom plate through the stand column, the assembling mechanism is connected with the mounting plate, the assembling mechanism and the taking and assembling position switching mechanism are cooperatively actuated, the product positioning station is fixed on the bottom plate, the picking mechanism is connected with the assembling mechanism, and the discharging mechanism is arranged on one side of the bottom plate. The application further provides a working method of the automatic wire harness double-stop ring device in the new energy automobile. The application is safe and reasonable in structural design, stable and reliable, high in assembling consistency, high in efficiency and assembling quality, saves labor cost, and meets the use requirement.

The invention discloses a telescopic rotary hydraulic cylinder, and belongs to the technical field of hydraulic cylinders. Comprising a cylinder body and a piston rod which are matched with each other, the revolving bed is fixed at the piston rod end; the rotary rod is rotationally mounted on the rotary seat and is coaxial with the piston rod; the pair of racks are fixed on the rotary seat and are arranged on two sides of the rotary rod in parallel; the ends, away from the rotary seat, of the two racks are fixedly connected with a rotary disc which rotationally sleeves the rotary rod. The gearbox is fixed to one end of the supporting cylinder. The input end of the gearbox is provided with a first straight gear meshed with the rack, and the output end of the gearbox is provided with an outer fluted disc matched with the internal spline of the piston rod. The rack is driven to move through linear motion of the piston rod, the linear motion is converted into rotary motion of the outer fluted disc through the gearbox, and therefore the rotary rod is driven to rotate, linkage of axial stretching and circumferential rotation of the rotary rod is achieved, and an additional motor or a rotary oil cylinder is not needed.

The utility model discloses a motor oil seal mounting structure belongs to motor technical field, including motor outer cover, the motor outer cover is rotationally connected with the pivot in, is provided with the bearing chamber in the motor outer cover, is rotationally connected with the bearing in the bearing chamber, is provided with the inner cover in the bearing chamber outside one side, is provided with the oil seal ring between the inner cover and the bearing, is provided with a plurality of muscle mouth on the oil seal ring along the circumferential direction, can help oil seal quick positioning and prevent rotation or eccentricity in the installation process, promotes the installation efficiency and operating stability, after the grease is extruded, the grease solution can be arranged to the inner cover space along the muscle mouth channel, then is arranged to export through the grease hole on the inner cover, thereby realizes the automatic renewal, avoids the old grease stagnation, the hardening even the blockage lubrication channel, is helpful to prolong the bearing life, keeps the smooth operation.

The invention discloses automatic packaging equipment for optical protective film production, and relates to the technical field of optical protective film packaging, and the automatic packaging equipment comprises an optical protective film limiting conveying module, a packaging module and an auxiliary overturning module; the optical protective film limiting conveying module comprises a base, a linear motion module is installed at the upper end of the base, a main drive turnover mechanism is installed above the output end of the linear motion module, and limiting assemblies are symmetrically installed on the left side and the right side of the main drive turnover mechanism. The auxiliary turnover module comprises a mounting frame, an auxiliary turnover mechanism and a control assembly are mounted on the mounting frame, and the control assembly is used for driving a turnover roller set on the auxiliary turnover mechanism to be attached to the side portion of the optical protective film roll. According to the automatic packaging equipment for optical protective film production, through limiting, main and auxiliary cooperative overturning and automatic winding packaging, high-precision, lossless, efficient and full-automatic packaging of optical film rolls of different specifications is achieved, slipping, eccentricity and wrinkles are effectively prevented, and the clean and flat packaging requirements of high-end optical materials are met.

The utility model discloses novel greening maintenance equipment, relates to the technical field of greening maintenance, and aims to solve the technical problems that a worker holds a trimmer for a long time to work, much physical power is consumed, fatigue is easily generated, and the trimming efficiency of a green belt is influenced, the novel greening maintenance equipment comprises a cart, a lifting mechanism is arranged on the cart, and a trimming mechanism is arranged on the lifting mechanism; a motor A drives a threaded sleeve to rotate, a guide rod and a sleeve limit a mounting plate, the threaded sleeve rotates to drive a threaded rod to ascend or descend and adjust the pruning height, and a motor B drives a plurality of driven gears and a rotating shaft to rotate through a driving gear so as to drive a blade group to rotate to prune a green belt; a motor C drives a half-tooth bevel gear to rotate, the half-tooth bevel gear is sequentially meshed with two driven bevel gears, so that the pruning mechanism performs reciprocating motion and swing pruning with a long shaft as the axis, pressing wheels at the top and the bottom of an L-shaped clamping plate rotate at the top and the side face of a roadbed, and the situation that the pruning mechanism generates eccentricity in the reciprocating rotation process, and consequently the device topples over is prevented.

The utility model relates to a sleeve type clamp, including sleeve and first connecting block, sleeve has main part and taper structure, first connecting block abuts on the outside surface with the gradient of taper structure, when first connecting block moves along the axial direction, the position of first connecting block abutting on taper structure changes, thereby make taper structure gather inwards / open outwards, further reach the purpose that let the clamping hole become big / become small. When needing to clamp work piece, can make taper structure gather inwards, when needing to release work piece, can make taper structure open outwards. Compared with prior art, through sleeve type clamp can obtain greater clamping area when clamping work piece, thereby avoid eccentricity phenomenon produced in the rotation process of work piece to the maximum, reach the purpose that improve part machining accuracy.

The application discloses an aviation aircraft accessory casing pipeline high-precision assembly adjusting device and method, and belongs to the field of precision machining. The device comprises: a reference positioning assembly containing a positioning seat (4) and an angular pin (5), which is used for accurate positioning with a casing mounting seat; a space extension positioning assembly, one end of which is connected with the reference positioning assembly, and the other end of which extends to the space position of a pipeline to be adjusted to reproduce an interface coordinate vector; and a pipeline interface positioning pin (6, 7, 17), which is movably installed at the end of the space extension positioning assembly and is used for cooperating with a pipeline port to check the precision of the pipeline port. The method steps are as follows: fixing the device on the casing; inserting the positioning pin into the pipeline port; if all the positioning pins can be inserted freely and the end faces are flush, the pipeline is qualified; otherwise, the pipeline is repaired and rechecked. The application can accurately control the space position of the pipeline, realize high-precision stress-free butt joint, greatly shorten the assembly period, build a quantitative control system, and improve the reliability and safety of the pipeline system.