528results about How to "No deformation" patented technology

The invention provides a preparation method of an isotropic Ti2AlNb / TiAl-based interpenetrating composite material, and belongs to the technical field of intermetallic compound-based composite materials. The method comprises the following steps: firstly, designing a Ti2AlNb reinforcement framework of various TPMS configurations by utilizing implicit function modeling; then, carrying out anisotropy research on the TPMS configuration by utilizing finite element simulation; secondly, a Ti2AlNb reinforcement framework of a TPMS configuration is prepared through a selective laser melting (SLM) technology; and finally, the TPMS configuration Ti2AlNb / TiAl-based interpenetrating composite material is prepared through vacuum hot pressing sintering of HPS. Therefore, strong anisotropy of a traditional fiber reinforced composite material in mechanical property is avoided, good matching of strength, plasticity and toughness of the composite material is achieved, and a new thought and a new solution are provided for breaking through the application bottleneck of TiAl in spaceflight power system hot end components.

The invention discloses a method for forming a honeycomb sandwich structure composite material by adopting an automatic fiber placement process, and relates to the field of composite materials. By optimizing the forming technical route of the honeycomb sandwich structure, skin pre-compaction and compaction and honeycomb sandwich curing forming are adopted for step-by-step layer laying forming and control, the shape of the honeycomb sandwich structure is maintained through a mold profile and a process cover plate, it is guaranteed that automatic fiber laying forming of a skin prepreg lamination part is achieved, and meanwhile the production efficiency is improved. The skin prepreg is fully compacted by applying sufficient compression roller forming pressure, and meanwhile, the problem of structural size deviation caused by crushing deformation of the honeycomb sandwich core under relatively high forming pressure is avoided, so that the forming quality of the sandwich structure is fully guaranteed.

The invention relates to the technical field of solid electrolyte, in particular to normal-temperature surface modified flexible oxide solid electrolyte and a preparation method and application thereof. The normal-temperature surface-modified flexible oxide solid electrolyte is prepared from the following raw materials: a monomer, polyethylene oxide, a solvent, an initiator, a modified oxide ceramic electrolyte and electrolyte salt, wherein the mass of the monomer is 1-10% of the total mass of the components; the molar ratio of the initiator to the monomer is 0.01%-0.1%; the molar ratio of the electrolyte salt to the monomer is 1: (6-12); the mass ratio of the electrolyte salt to the modified oxide ceramic electrolyte is 1: (2.5-5). The flexible oxide solid electrolyte has high conductivity, wide temperature tolerance range and high structural stability, and when the flexible oxide solid electrolyte is applied to an all-solid-state lithium metal battery, the ionic conductivity, safety and cycle performance of the battery are improved.

The invention relates to the technical field of projectors, in particular to a projector control method and a projector. The method comprises the following steps: performing image projection signal processing on target projection image data to generate initial projection picture data; performing projection point cloud space-time registration on the initial projection picture data by using the dual laser radar assembly to obtain projection scanning point cloud space data; performing shielding area geometric feature analysis on the projection scanning point cloud spatial data, determining an ideal projection area, and generating ideal rectangular projection area data; performing intelligent projection control parameter processing on the ideal rectangular projection area data to obtain intelligent projection control parameters; and performing projection attitude control instruction processing on the intelligent projection control parameters to obtain projection control optimization effect data. According to the invention, the projection control parameters are automatically adjusted through intelligent identification of the projection surface, so that the projector can maintain a stable projection effect in different environments, and the quality of a projection image is remarkably improved.

The invention relates to an improved building board drilling machining device. Compared with the prior art, the device is provided with a machine tool, the machine tool comprises a concentric-square-shaped plate, a plurality of supporting rods are installed in the concentric-square-shaped plate, T-shaped open grooves are formed in the left side and the right side of the concentric-square-shaped plate correspondingly, a U-shaped plate is arranged above the concentric-square-shaped plate, and the two arms of the U-shaped plate are slidably connected with the two T-shaped open grooves correspondingly; a moving mechanism used for moving the U-shaped plate is arranged in the concentric-square-shaped plate, a pneumatic drilling machine is arranged on the front side of the U-shaped plate, and a drill bit is installed at the lower end of the pneumatic drilling machine. And the positioning mechanism is used for moving and positioning the pneumatic drilling machine, the positioning mechanism comprises a following plate, and the two ends of the following plate penetrate through the two T-shaped open grooves correspondingly and are fixedly connected with the two arms of the U-shaped plate. When the improved plate drilling device is used for drilling an improved plate, the stress balance of the plate is kept, the deformation condition is avoided, drilling meets the specification, and during drilling, the periphery of the lower side of a hole is limited, so that burrs do not appear in the hole.

The invention provides a medical packaging composite film and a preparation method thereof. The preparation method of the medical composite membrane comprises the following steps: S100, coating a first surface of an aluminum foil layer with an adhesive, attaching the first surface to a barrier material, and sequentially carrying out primary drying treatment and calendering treatment to obtain a barrier layer, an adhesive layer and the aluminum foil layer; s200, the second surface of the aluminum foil layer is coated with heat sealing slurry, secondary drying treatment is conducted, and the medical packaging composite film is obtained. The medical packaging composite film has excellent barrier property, biological safety, mechanical property and heat sealing property, and can provide reliable packaging protection for medical drugs.

The pipe bending machine for metal pipe manufacturing comprises a workbench, a baffle is fixedly connected to the lower portion of the workbench, the baffle is placed on the ground and used for supporting the workbench, a through hole is formed in the surface of the workbench, and a bending assembly is arranged in the through hole of the workbench. The bending assembly is used for bending a metal pipe to a required angle, a clamping assembly is fixedly connected to the upper portion of the workbench and used for fixing the position of the metal pipe to be machined, and a feeding assembly is slidably connected to the upper portion of the workbench and used for feeding the metal pipe to be machined. The feeding assembly is used for fixing the position of the tail end of a to-be-machined metal pipe and conveying the part, needing to be bent, of the to-be-machined metal pipe to the bending assembly, a supporting assembly is fixed in the feeding assembly, and the supporting assembly is used for supporting the inner wall of the metal pipe to prevent the section of the metal pipe from deforming when the metal pipe is bent. The device solves the problem that a traditional pipe bending machine can only bend a metal pipe with a single section diameter.

The invention relates to the technical field of 3D printing, and particularly discloses a supporting method and device for 3D printing sintering, and the supporting method comprises the steps that (1) high-temperature-resistant material powder is laid at the bottom in a high-temperature-resistant box body; and (2) the bottom of a workblank obtained through 3D printing is embedded into the high-temperature-resistant material powder, so that the workblank is supported by the high-temperature-resistant material powder, and gaps generated by shrinkage deformation of the workblank are filled with the high-temperature-resistant material powder during sintering. According to the supporting method and the supporting device for 3D printing sintering, the supporting effect on the workblank is good, the workblank is not prone to deformation in the sintering process and can be easily taken out of the supporting structure, the cost is reduced, and the 3D printing range is widened.

The invention belongs to the technical field of architectural ceramics, and particularly discloses a ceramic tile with a humidifying function and a preparation method of the ceramic tile. The ceramic tile comprises the following raw material components in parts by weight: 20-40 parts of pumice powder, 5-15 parts of volcanic mud, 20-30 parts of albite, 10-15 parts of kaolin, 5-15 parts of ceramic solid waste, 10-15 parts of glass powder, 1-3 parts of borax and 0.5-2 parts of carbon powder. According to the invention, pumice powder, volcanic mud and carbon powder are used as main humidity-regulating raw materials, glass powder, albite and borax are used as low-temperature flux raw materials, ceramic basic raw materials kaolin and ceramic solid waste are added, and low-temperature firing is carried out, so that the humidity-regulating ceramic tile with high strength is prepared, the deformation and cracking of the product are prevented, the moisture absorption capacity in 24 hours is 325-342 g / m < 2 >, and the humidity-regulating effect is good. The moisture liberation is 299 to 309 g / m < 2 >, and the breaking strength reaches 17.9 to 19.8 MPa.

The invention belongs to the technical field of photovoltaic target materials, and particularly relates to an indium titanium cerium niobium oxide ceramic target material, a preparation method and application thereof, and a transparent conductive oxide film. The indium titanium cerium niobium oxide ceramic target material comprises the following components: indium oxide, titanium oxide, cerium oxide and niobium oxide, the mass ratio of indium oxide to titanium oxide to cerium oxide to niobium oxide is 97-99: 1-0.3: 1-0.3: 1-0.2, the transparent conductive oxide film has high density, high purity and high strength, and the transparent conductive oxide film prepared from the transparent conductive oxide film has high carrier mobility, high conductivity and high light transmittance.

The invention relates to the related technical field of high-voltage wires, in particular to a high-voltage connecting wire with a fixed shape and a shielding function, which comprises a metal conductor, and a supporting mechanism is arranged on the outer side surface of a sheath. According to the high-voltage connecting wire with the fixed shape and the shielding function, through the arrangement of the supporting mechanism, during installation, the first supporting block and the second supporting block are close to each other from the two sides of the sheath, the clamping blocks are pushed into the clamping grooves, the fixing blocks are extruded to push the limiting plates to compress the telescopic springs, and after the clamping blocks enter completely, the fixing blocks pop out under the action of the springs and are inserted into the fixing holes; the supporting blocks surround the sheath to provide stable support for the wire, and when the wire is subjected to external force, the supporting mechanism protects the internal wire structure, prevents deformation and damage, improves the use flexibility and tightly cooperates with the supporting blocks to provide rigid support and ensure that the shape of the wire is fixed by means of structural strength and elastic buffering. And the installation and use reliability is improved.

The invention relates to the technical field of plastic forming, and particularly discloses a forming mold for processing an ultrahigh polyethylene wear-resistant pipe based on a pipeline compensator lining, which comprises a base, a lower mold and an upper mold, and further comprises an inner core which is in the shape of a hollow cylinder and is arranged in a mold cavity, and the end cover is sleeved on the outer wall of the inner core. The upper mold is moved upwards, then the lifting seat is moved upwards, the inner core drives the lining to ascend, the bottom of the cured lining is separated from the lower mold, and finally the drawing rod, the inner core and the end cover are driven to move outwards through the second telescopic part and the third telescopic part to take out the lining. And finally, the lining is pulled outwards while rotating from the outer wall of the inner core to complete demolding, compared with a demolding mode in the prior art, the demolding mode is faster, and the lining is not prone to deformation during demolding.

The invention discloses a flat wire stator and a manufacturing method thereof, and a tool used for manufacturing the flat wire stator, the tool is arranged in a stator winding, the tool is opened to support the stator winding, and then a stator core block is inserted between two adjacent vertical winding coil groups to form a stator core. According to the two flat wire stators and the manufacturing method, the stator winding does not need to be shrunk forcibly, the stator winding is not abraded, the percent of pass of the flat wire stators is improved, installation is more convenient, and working efficiency is improved. And the stator winding is integrally formed, so that the upper end and the lower end of the winding do not need to be shaped, the height of the end part of the stator can be shortened, and the motor performance is also improved.

The utility model discloses a novel simple antiskid chain for an automobile, and belongs to the technical field of automobile appliances. A novel simple antiskid chain based on an automobile comprises a fastening mechanism and an antiskid module, a first connecting plate is arranged at one end of the antiskid module, the fastening mechanism is arranged on the outer side of the first connecting plate, a connecting chain is arranged between the fastening mechanism and the first connecting plate, a second connecting plate is arranged at the other end of the antiskid module, and the second connecting plate is arranged on the outer side of the second connecting plate. A locking chain is arranged on one side of the second connecting plate, connecting rings are arranged between the first connecting plate and the anti-skid module and between the second connecting plate and the anti-skid module for connection, and the fastening mechanism comprises a fixing plate and a locking hook. The utility model aims to solve the problems that in the prior art, an antiskid chain deforms after being used for a period of time due to the influence of the weight of a vehicle, the use effect is influenced, at least two persons are required to be matched to complete assembly, and the use steps are relatively tedious.

The utility model discloses a magnetic latching relay, and belongs to the technical field of magnetic latching relays. The magnetic latching relay comprises a main terminal strip, the main terminal strip comprises a live wire inlet copper terminal and a live wire outlet copper terminal which are arranged in parallel at an interval, the end part of the live wire outlet copper terminal is provided with a static contact, the magnetic latching relay further comprises a movable contact spring, one end of the movable contact spring is fixedly arranged at the end part of the live wire inlet copper terminal, and the other end of the movable contact spring is fixedly arranged at the end part of the live wire outlet copper terminal. And a movable contact matched with the static contact is arranged at the other end of the movable contact. A static leading-out end and a movable leading-out end are omitted, the movable contact spring riveted with the movable contact is fixed on the live wire inlet copper terminal of the main terminal strip, the static contact is directly fixed on the end face of the live wire outlet copper terminal, and a contact system which is short in loop, small in resistance and little in heat is formed. And compared with a conventional magnetic latching relay, the magnetic latching relay is more material-saving, the material cost is greatly reduced, the manual production is simpler, and the magnetic latching relay has higher market competitiveness.

The utility model provides a temporary supporting device for connecting channel duct piece reinforcement, which comprises a support, the support comprises an arc-shaped supporting piece, a bearing unit is arranged below the arc-shaped supporting piece, and a plurality of screw jacks are arranged in the arc-shaped supporting piece; the top of the vertical supporting piece is connected with the arc-shaped supporting piece, and the bottom of the vertical supporting piece is connected with the bearing unit; one end of the transverse supporting piece is connected with the vertical supporting piece, and the other end of the transverse supporting piece is connected with the arc-shaped supporting piece. The vertical supporting pieces are arranged on the bearing units, the arc-shaped supporting pieces are fixed to the duct pieces through the vertical supporting pieces and the transverse supporting pieces, a track laying construction space and a track laying machine passing space are formed, and prestress is applied to the supports through the screw jacks arranged on the arc-shaped supporting pieces; according to the construction method, it is guaranteed that the duct pieces do not deform in the surrounding soil freezing and unfreezing process in freezing method construction, track laying construction and operation are guaranteed, meanwhile, a system formed by the support can also be used for duct piece holing, reinforcing and supporting, and the overall structure is simple.

The invention belongs to the technical field of large-span steel structures, and discloses a high-altitude construction method for a large-span asymmetric arc-shaped steel structure, which comprises the following steps of: firstly, assembling units to be mounted on the ground, and mounting the assembled units to be mounted on an assembling jig frame so as to facilitate subsequent lifting and mounting operation; and then the to-be-installed unit is reinforced, the to-be-lifted points are arranged on the to-be-installed unit, then the lifting frame is installed, and the to-be-installed unit is integrally lifted through the lifting frame, so that the aloft work amount is reduced, the construction efficiency is improved, and meanwhile the construction cost is reduced. And then inlaying installation is carried out between the to-be-installed unit and the main body structure, so that the stability and the safety of the whole structure are improved. And finally, stress release is conducted on the installed to-be-installed unit, and therefore the installation operation of the to-be-installed unit is completed. By means of the arrangement, the high-altitude construction method of the large-span asymmetric arc-shaped steel structure can efficiently and accurately achieve installation operation of the to-be-installed unit, and the construction cost is low.

The utility model provides novel plastic film punching equipment, and relates to the technical field of plastic film punching, the novel plastic film punching equipment comprises film punching equipment, the top of the film punching equipment is fixedly provided with a top cover, the top of the top cover is provided with a lifting cylinder in a penetrating manner, and the bottom of the lifting cylinder is connected with a lower pressing plate; a plurality of punchers are uniformly distributed at the bottom of the lower pressing plate; in the punching process, when the lower pressing plate is pressed downwards, the first limiting plate is driven to move downwards synchronously, the first limiting plate can make contact with and be pressed on the upper surface of a thin film, the second limiting plate is connected to the lower surface of the thin film in a pressing mode, and further clamping and limiting are facilitated through rubber anti-slip strips on the first limiting plate and the second limiting plate; furthermore, in the punching process of the film, the winding structure is wound and tightened, and meanwhile, clamping and limiting are matched, so that the film is not deformed and wrinkled, the punching precision is improved, and the punching quality is ensured.

The invention discloses an automatic welding device and method for metal pipelines, and relates to the technical field of automatic welding of the metal pipelines. The automatic welding device and method for the metal pipelines comprise a base and a metal pipeline body, a moving device is arranged on the inner wall of the base, and a frame is slidably mounted on the circumferential surface of the moving device; a motor is fixedly mounted above the frame; the device further comprises a clamping device, a moving device and a cleaning device; wherein the clamping device comprises a placing block, a rotating cylinder, a sliding plate, a first telescopic elastic rod, a first square plate, a second sliding groove, a clamping plate, a mounting plate, a limiting plate, a second telescopic elastic rod and a check block, meanwhile, the clamping plate can adapt to metal pipeline bodies of different sizes to conduct clamping and fixing, the pipeline can be stably fixed, it is ensured that the pipeline cannot move or deform in the welding process, and the welding efficiency is improved. Therefore, accurate butt joint is realized.

The invention provides an enterprise financial document integrated digital management system based on artificial intelligence, belongs to the technical field of digital management, and solves the technical problems that an existing management system cannot automatically process paper documents and the like. The enterprise financial document integrated digital management system based on artificial intelligence comprises a digital management platform, and the digital management platform is in communication connection with an information input unit, a text updating unit, a storage management unit, an intelligent pick-and-place unit, a document version control module and an authority distribution unit. The information input unit comprises a data scanning device and a first camera, and is used for collecting enterprise financial data and archive information, scanning a paper material code, converting the paper material code into a digital format, and storing and managing the paper material code; the text updating unit comprises a printing mechanism and a binding mechanism and is used for printing, updating and replacing damaged paper of the paper document. The method has the advantages that the paper documents are automatically processed, the working efficiency is improved, and the storage time limit of the paper documents is prolonged.

The utility model discloses 3d honeycomb packing paper and box packing paper thereof, and relates to the field of packing paper design, the 3d honeycomb packing paper comprises a plurality of paper strips, and the plurality of paper strips are arranged with the same length and the same width; a plurality of adhesive layers are arranged on the two sides of the paper strip respectively, the adhesive layers are arranged in an equidistant array mode, and the adhesive layers on the two sides of the paper strip are arranged in a staggered mode. When the multiple paper strips are stretched in the vertical direction of the side faces, the paper strips and the adhesive layers on the two sides are stretched to form a honeycomb-shaped structure. When the paper tape is stretched, the paper tape can be stretched and deformed from the adhesive layers which are arranged in a staggered mode, the paper tape can form a honeycomb-shaped structure after being completely stretched, and due to the fact that the honeycomb-shaped structure is high in stability, the paper tape can be stretched in the stretching direction and does not deform in other directions; compared with kraft paper, the paper strip is lower in preparation cost, the strength of the 3d honeycomb packaging paper can be guaranteed by setting the corresponding width of the paper strip, and the protection effect is better.

The invention relates to the technical field of building foundation construction, and discloses an ultra-large-diameter cylindrical foundation reinforcing formwork device shaped like a Chinese character'tian '. The reinforcing mechanism is used for enhancing the stability of the overall structure of the column foundation formwork; and the supporting mechanism is used for preventing the column foundation mold from displacing. By means of the mode that the multiple groups of scattered arc-shaped formworks of the column foundation formwork are spliced, after the bearing platform is poured and solidified, the arc-shaped formworks can be detached, recycled and repeatedly utilized, the detached arc-shaped formworks are easy to transport, and the arc-shaped formworks serving as pouring formwork forming plates of the bearing platform and the surface of each arc-shaped formwork are of a wavy structure, so that in the concrete pouring process, the arc-shaped formworks are not prone to deformation. Stress generated by flowing and diffusing of concrete can be dispersed on the inner wall of the uniform column foundation formwork so as to enhance the overall strength of the column foundation formwork, and the stress generated by flowing and diffusing of the concrete at the joint can be dispersed to the sunken positions on the two sides in the mode that the waves at the joint of the arc-shaped formworks protrude towards the interior of the column foundation formwork.

The invention relates to the technical field of cable trench soil construction equipment, in particular to tamping equipment for cable trench backfill, which comprises a machine body and telescopic drivers symmetrically arranged on two sides of the machine body, the other ends of the telescopic drivers are fixedly connected with a soil shoveling assembly, and the machine body is sequentially provided with a crushing assembly, a leveling assembly and a soil ramming assembly from front to back. One end of the telescopic transmission machine is movably connected with the machine body; the soil shoveling assembly comprises a rotatably arranged soil feeding mechanism, and the telescopic driver adjusts the distance between the soil shoveling assembly and the machine body through the action of a lead screw nut mechanism; the crushing assembly comprises two groups of parallel soil crushing pieces, the two groups of soil crushing pieces synchronously rotate in opposite directions, the soil ramming assembly comprises a rotating piece and four soil ramming units arranged in the circumferential direction of the rotating piece at intervals, and the four soil ramming units are matched with the rotating piece to sequentially reciprocate; according to the invention, backfilling and tamping can be synchronously carried out, the cable trench backfilling construction efficiency is improved, the backfilling is compact, and the labor intensity of workers is reduced.

The utility model discloses a door leaf sealing edge and a door leaf component, which comprise a first fitting part and a second fitting part which are used for being fitted on the side wall of a door leaf, the surfaces of the sides of the first fitting part and the second fitting part, which are fitted with the side wall of the door leaf, are not on the same plane, and the first fitting part and the second fitting part are both provided with plug pins. The plug pin is used for being inserted into a pin groove in the side wall of the door leaf, a magnetic attraction piece installation groove is formed in the side, back to the side wall of the door leaf, of the combination position of the first attaching part and the second attaching part, and a door leaf magnetic attraction sealing piece is arranged in the magnetic attraction piece installation groove. According to the utility model, a circle of metal outside the door leaf magnetic sealing element is fixed with the door leaf, so that the installation reliability of the door leaf magnetic sealing element is improved, the door leaf magnetic sealing element is tightly matched with the door pocket magnetic sealing element of the door pocket part, the sealing effect and the waterproof and moistureproof performance of the door are improved, the sound insulation effect is improved, and the service life of the door is prolonged. The texture and the hardness of the door leaf are improved, deformation is avoided, and the requirement for quiet space of bedrooms of customers is met.

The screen plate machining die comprises a lower supporting plate, guide columns are fixedly installed at the top of the lower supporting plate, an upper supporting plate is fixedly installed at the tops of the guide columns, a lower die plate used for containing a plate body is fixedly installed at the top of the lower supporting plate through a lining plate, and a punch mechanism is movably arranged between the lining plate and the upper supporting plate. A driving mechanism used for driving the punch mechanism to move downwards is arranged on the upper supporting plate, the punch mechanism comprises a punch mounting seat, a plurality of punch units are arranged on the punch mounting seat, each punch unit comprises a punch assembly and a locking assembly, the punch assemblies are used for punching a plate body, and the locking assemblies are used for locking the punch assemblies. The locking assembly is used for controlling whether the punch assembly conducts punching or not. According to the punching device, the punches can be quickly and selectively locked through the locking assembly, the locked punches participate in punching operation, and the unlocked punches move upwards after making contact with the plate body, retract into the sliding grooves and do not participate in punching operation.

The invention provides a method for repairing a damaged airplane by using a high-precision vision measurement technology, and belongs to the technical field of aviation maintenance. The method comprises four important processes in a damaged airplane repairing process: manufacturing a special tool by using a reverse engineering technology, recovering a whole machine coordinate system by using a monocular vision technology, and carrying out accurate auxiliary installation of a frame plate by using a binocular vision real-time positioning technology. And the point cloud scanning technology is used for carrying out accurate comparison on the aerodynamic configuration so as to inspect the aerodynamic configuration repairing effect. The method gets rid of the traditional measurement concept of'tool-assisted and manual ', applies the digital vision technology, performs high-precision repair on the damaged aircraft under the condition of no original aircraft digital model, performs repair result verification, and realizes high-precision digital repair, so that the aircraft repair quality and the combat performance recovery are improved, and the maintenance cost is reduced. The method is suitable for repairing damaged machines with various pneumatic shape deformation and machine body structure damage, and the application effect is remarkable.

The invention discloses a plate processing technology, and aims to provide a plate arc-shaped surface processing method which is characterized by comprising the following steps: S1, plate pretreatment; s2, plate heating; s3, preparing a bending die; s4, the plates are placed and pressurized; s5, bending processing is carried out; s6, cooling treatment; s7, surface quality detection; s8, size detection; s9, post-processing the plate; and S10, final detection and packaging. Compared with the prior art, the plate arc-shaped surface machining method has the advantages that high-quality arc-shaped surface machining of the plate can be effectively realized; through a series of process steps of systematic pretreatment, heating, bending, cooling and the like on the plate, it is guaranteed that the plate does not deform or crack in the machining process, and the surface quality and the size precision of the bent plate can also be guaranteed; the invention is suitable for the technical field of plate processing.

The utility model relates to the field of building construction discloses a new pipe clamp for ALC partition wallboard fixing, including sleeve pipe, movable pipe, baffle, spring and fixed block, the top welding of sleeve pipe has the limit end plate, and the limit end plate is opened with the guide groove, movable pipe is established in the sleeve pipe, and the cross section of its near top one end is established as with the contour of guide groove matching structure, the top of movable pipe still is equipped with the connecting head connected with one end of fixed block, and the interval between the bottom surface of fixed block and the end surface of movable pipe is not less than the thickness of limit end plate, and the connecting head can pass through the guide groove and enter the sleeve pipe, the baffle is screwed in the bottom inner wall of sleeve pipe, the spring is established in the sleeve pipe, and one end of spring abuts against the baffle, and the other end abuts against movable pipe. The utility model does not need the construction personnel to press the fixed block tightly on the beam bottom or the floor, and the operation is labor saving, simultaneously, the fixed block can not take place deformation, can improve the fixed effect of pipe clamp.

The utility model provides an aluminum profile straightening machine, and relates to the technical field of electric power engineering equipment, the aluminum profile straightening machine comprises a machine body and a clamping turnover mechanism, the machine body is provided with a clamping port; the clamping turnover mechanism is arranged at the end, close to the clamping opening, of the machine body and comprises a connecting plate, a sliding structure, a clamping structure and a turnover structure, the connecting plate is fixedly connected with the machine body, the sliding structure is fixedly arranged on the connecting plate, the turnover structure is fixedly connected with the sliding structure, and the clamping structure is fixedly arranged on the turnover structure. The clamping structure is fixedly connected with the overturning structure; according to the aluminum profile straightening machine, automatic clamping, overturning and moving operation can be achieved, manual intervention is reduced, the automation level of equipment is improved, and the working efficiency is further improved.

The utility model provides a kind of special anti-toppling jig for grab assembly, it is related to the assembly auxiliary equipment field of grab production and manufacture, it includes bottom support, two vertical supports are fixed on the bottom support, two the vertical support is spaced and parallelly arranged along the length direction of bottom support, and all vertical to the plane where bottom support is, the lower end of vertical support is fixedly connected with bottom support by welding mode, the upper end of vertical support is provided with circular slot, the radian of circular slot is compatible with the radian of outer circumferential surface of grab middle beam shaft, the utility model solves the technical problem that operating personnel in the middle beam bottom operating surface faces high-altitude falling risk when grab assembly in prior art, operation space is small, leading to big operation difficulty and welding fume is difficult to diffuse and harm health.