308 results about "Thin slab" patented technology

The utility model relates to the technical field of low-cycle fatigue tests, and discloses an anti-buckling tool for a low-cycle fatigue test sheet metal structure, which comprises a fixing assembly and a guide assembly, the fixing assembly comprises an upper fixing piece I, an upper fixing piece II, a lower fixing piece I and a lower fixing piece II, two screws are connected between the first upper fixing piece and the second upper fixing piece, two screws are connected between the first lower fixing piece and the second lower fixing piece, and cushion blocks are arranged on the inner side faces of the first upper fixing piece, the second upper fixing piece, the first lower fixing piece and the second lower fixing piece. Through the fixing assembly, the sample can be conveniently and quickly assembled, the low-cycle fatigue test requirement of the sheet metal structure can be met, and the lateral buckling instability phenomenon between a clamping part of equipment and the buckling-restrained tool can be reduced; through the guide assembly, when the sample bears a tension and compression cyclic load, the lateral buckling instability phenomenon in the thickness direction is prevented, and the stability of the sample is further enhanced.

The invention belongs to the technical field of intelligent manufacturing, and provides a thin plate welding seam polishing control method which comprises the following steps: calculating a defect judgment parameter for any point in each cluster, judging whether the point is a defect point and a defect type according to the defect judgment parameter, clustering the defect points to form a defect cluster set, and obtaining a target removal amount of each defect cluster; determining a trajectory for the gravity center projection point set of the defect cluster, and stepping from the starting point to the ending point of the trajectory with a dynamic step length to generate a discrete path point set; the track line comprises a center line obtained through curve fitting in the welding seam direction; according to the radius of the cutter and the expected removal depth of the current pass, the position and posture of the polishing cutter are calculated for each path point; and the discrete cutter positions and postures are fitted to form a continuous cutter pose track. The method is suitable for automatic grinding of automobile door frame type welding seams, and has the advantages of being simple in engineering, high in feasibility, low in cost, robust to welding slag artifacts and the like.

This utility model discloses a veneer press for wood processing, specifically relating to the field of wood processing. It includes a worktable, a support base fixedly connected to one side of the worktable, a pressure-applying component fixedly installed on the upper surface of the support base, a positioning plate fixedly installed on the upper surface of the worktable, and a transmission base fixedly installed on the bottom surface of the worktable. Two bearing rings are fixedly embedded in the inner wall of the transmission base, and the inner rings of the two bearing rings are jointly fixedly connected to positive and negative lead screws. This utility model allows the spacing between two movable limiting plates along the transmission hole to be adjusted. Regardless of the difference in board width, the spacing between the movable limiting plates can be adjusted to ensure a close fit with the edge of the board, avoiding the problem of insufficient contact area caused by the limited adaptability range of traditional equipment. This enables the equipment to handle multi-specification processing needs from narrow, thin boards to wide, thick boards, enhancing the flexibility of veneer positioning.

The invention relates to the technical field of stamping dies, in particular to a continuous stamping die with a self-locking anti-deviation positioning column, which comprises a die mounting frame, a plurality of guide rods are fixedly mounted in the die mounting frame, a stamping plate is slidably connected between the guide rods, and a hydraulic cylinder is fixedly mounted between the top of the stamping plate and the die mounting frame. One side of the die mounting frame is provided with a multidirectional limiting assembly for preventing deviation feeding of the material belt, and the stamping plate is provided with an adjustable positioning assembly which is combined with the material belt positioning hole to conduct deviation-preventing accurate stamping on the material belt. According to the invention, self-adaptive multi-directional movable pre-positioning treatment is realized for material belts with different wide edges and thicknesses through the multi-directional limiting assembly, the feeding deviation of the material belts is effectively avoided, and the core problems of inaccurate punching positioning, concave sheet positioning holes, tedious die replacement debugging and the like are further avoided by combining the matching of the adjustable positioning assembly and the material belt positioning holes, so that the production efficiency is improved. Therefore, the positioning precision is improved.

This invention relates to the field of lifting tool technology and provides a lifting tool and processing equipment for ultra-large diameter thin plates. The lifting tool includes a lifting fixture, a pressure plate, lifting claws, a centering mechanism, and a suction cup mechanism. The upper end of the lifting claw is rotatably connected to the middle of the lifting fixture, and the lower end of the lifting claw is provided with at least three jaws. A positioning shaft protrudes from the middle of the pressure plate, and a chuck extends radially from the positioning shaft. The chuck has grooves for the jaws to pass through. The lifting claws are used to lift the pressure plate by engaging with the chuck. At least three centering mechanisms are spaced apart and connected to the circumferential edge of the lifting fixture, and are used to coaxially center the workpiece with the lifting fixture. At least three suction cup mechanisms are spaced apart and connected to the lower end of the lifting fixture along the circumferential direction, and are used to connect the workpiece. This improves the processing efficiency and quality of ultra-large diameter thin plates.

The application discloses a kind of high-precision warping prevention clamping equipment of sheet part based on negative pressure adsorption, belong to the technical field of machine equipment.It includes adsorption platform, is provided with several adsorption holes on adsorption platform, and airflow chamber is arranged in adsorption platform;Plug is installed in adsorption hole, second filter screen is rotatably installed on plug, and torsional spring is installed in the rotary joint of second filter screen;Several adjusting frames are slidably installed on adsorption platform, several locating plates are installed on adjusting frame, threaded rod is rotatably installed on adjusting frame, and threaded rod is threadedly connected with adsorption platform.The plug is inserted into adsorption hole, and the inclined groove of guiding block can be inserted into the locating plate of adjusting frame, so that the plug is forced to drop to the limit position, the top of plug is slightly lower than the mouth part of adsorption hole, the plug is prevented from being damaged by knocking during workpiece clamping process, and the stability of plug after installation is improved when reverse pressure cleaning is prevented from being separated from adsorption hole by pressure.

The application relates to the technical field of metal welding, and discloses a furniture metal sheet welding process based on a multi-section compression anti-warping structure, which comprises the following steps: S1, checking the sheet material, thickness and surface state, making the sheet material meet the requirements, and clearly defining the weld position and length; S2, using the methods of chemical cleaning, mechanical polishing and sand blasting to remove the oil stains, rust, oxide scale impurities on the surface of the metal sheet, making the surface expose the metal luster, and ensuring the welding quality. The furniture metal sheet welding process based on the multi-section compression anti-warping structure can effectively solve the problems in the prior art that plastic deformation is caused during the welding of the metal sheet, and then the sheet appears the warping phenomenon; the warping can make the welded metal sheet deviate from the originally designed size specification, causes the poor cooperation in the subsequent assembly process, increases the assembly difficulty and cost, and even causes the problem that the whole product cannot be normally assembled.

The present application belongs to the field of forging technology, and particularly relates to a forging method of an L-shaped large thin plate forging. The method realizes qualified output of the L-shaped large thin plate forging by using a special bending tool and an L-shaped die, and combining free forging and die membrane forging, and solves the blank of the forging technology of the L-shaped large thin plate forging.

The application discloses a 700MPa-grade CSP short-process hot-rolled high-weather-resistance container steel and a production method thereof. The chemical components of the steel include C: 0.02-0.06%, Si: 0.20-0.65%, Mn: 1.1-1.8%, P: 0.035-0.15%, S: ≤0.008%, Cu: 0.20-0.55%, Sb: 0.02-0.25%, Ti: 0.10-0.18%, N ≤0.005%, and the balance is balanced iron and inevitable impurities, wherein the carbon equivalent CEV is controlled to be ≤0.35%. The preparation mainly includes the converter smelting, the LF ladle furnace refining, the thin slab continuous casting and rolling, the laminar cooling and the coiling steps. The container steel obtained by the application has good mechanical properties, corrosion resistance, welding performance, forming performance and cost advantage, realizes the lightweight and long service life of the container, and is suitable for popularization and application.

The present application relates to the field of machining, more particularly to a thin plate processing equipment, a thin plate processing equipment, including upper adjusting limiting slide plate, lower fixed limiting slide plate and extrusion slide roller, the upper adjusting limiting slide plate and the lower fixed limiting slide plate are symmetrically slidably provided with extrusion slide roller for repeated clamping; the upper adjusting limiting slide plate and the lower fixed limiting slide plate are symmetrically provided with tapered inclined sliding groove, and the tapered inclined sliding groove is a limiting sliding groove with symmetrical inclination at both ends and horizontal in the middle; the present application has the beneficial effects that by adjusting the gap between extrusion, the thickness of the thin plate after extrusion is ensured, by the reciprocating automatic extrusion, the damage of the equipment is effectively reduced, the stress is as uniform as possible, and the formed thin plate is more uniform; at the same time, the thin plate processing can be carried out after the pipe cutting and unfolding, and the recycling processing of waste pipe is completed.

The invention discloses a thin plate bending forming device based on a flexible pressing body and a using method, the thin plate bending forming device comprises a thin plate bending forming device body provided with a rack (2) and a forming template (3), and a thrust telescopic cylinder set arranged between the rack (2) and the forming template (3), through the thin plate bending forming device body, clamping fit bending forming of a thin plate is achieved, and the thin plate bending forming efficiency is improved. Through the thrust telescopic cylinder set, the forming die plate (3) is in a follow-up swing state, a bent and formed thin plate is in a stable pressing clamping opening, the technical problem that a thrust telescopic cylinder and a rack are fixedly connected together is solved, and therefore the bending forming precision of the thin plate is improved.

The application discloses a forming method for concave thin plate corrugated stainless steel parts, which comprises die assembling, stamping buffer layer laying, stamping preforming, stamping forming and shearing correction. By using the forming method, the existing punch is used, in the stamping preforming process, the stamping buffer layer is laid, the step-by-step pressing mode is adopted, the stamping buffer layer can control the material flow problem, so that the material uniformity is achieved; in the stamping forming, the die is replaced, and the one-time pressing forming is adopted, which can effectively solve the technical problem that the boundary of the corrugated area is prone to wrinkling, and can improve the forming efficiency, so as to improve the qualified rate of part forming, ensure the product forming quality, greatly reduce the processing cost, and be applied to the processing of the parts prone to wrinkling, and is convenient to operate and suitable for popularization and application.

The invention relates to the technical field of laser cutting machines, and provides a laser cutting machine for JP cabinet production, which comprises a mounting plate frame, a traction component, a polishing component and a pressing and separating mechanism, the mounting plate frame is fixedly connected to the end part of a lathe bed, and the pressing and separating mechanism is fixedly connected to the mounting plate frame; the pressing and separating mechanism is used for disconnecting a part adhered to a plate from the plate through pressing and comprises a cushion wheel and a pressing wheel, a plurality of protrusions are arranged on the pressing wheel, the plate slides between the pressing wheel and the cushion wheel, the cushion wheel and the pressing wheel are each sleeved with a protective sleeve made of a flexible material, and the protective sleeves are connected with the pressing wheel. And a scraper mechanism is arranged between the pressing and separating mechanism and the traction component and used for separating parts which are pressed and broken by the pressing and separating mechanism on the plate, and the technical problems that in the prior art, after laser cutting is conducted on the JP cabinet thin plate, cuttings adhere to base metal, residues need to be removed through manual knocking, the labor cost is high, and the machining efficiency is low are solved.

The utility model belongs to the technical field of building profiles, and particularly relates to a U-shaped thin plate cold bending profile which is characterized by comprising a U-shaped main body formed by four flange plates and three webs in a cold bending mode, the four flange plates comprise two middle flange plates and two outer side flange plates, and the two middle flange plates and the two outer side flange plates are arranged on the U-shaped main body. The three sections of web plates comprise a middle web plate and two outer side web plates arranged below the two sides of the middle web plate. According to the U-shaped thin plate cold-bending section bar, the structural performance is optimized, a double-closed cavity is formed by combining the three sections of stepped staggered web plates and the four flange plates, the moment of inertia of the section is greatly improved, and the bending resistance is remarkably enhanced and is improved by more than 40% compared with a traditional C-shaped keel; a rectangular cavity formed by the middle web plate and the two outer side web plates can be used for hiding wire pipes, and square pipes can be inserted into the rectangular cavity for reinforcement, so that a'structure-wiring 'integrated design is realized.

Disclosed is an ultra-high-strength steel having excellent plasticity, comprising in mass percent the chemical elements: C: 0.26-0.30 wt %; Si: 0.8-1.00 wt %; Mn: 2.80-3.30 wt %; Al: 0.04-0.08 wt %; with the balance being Fe and other inevitable impurities. Also disclosed is a manufacturing method for manufacturing the ultra-high-strength steel having excellent plasticity, comprising the following steps: (1) smelting and thin slab continuous casting; (2) heating; (3) hot rolling, wherein an oxide scale on the surface of a hot-rolled steel strip has a thickness of ≤6 μm, and (FeO+Fe3O4)≤40 wt % in the oxide scale on the surface of the hot-rolled strip steel; (4) acid pickling or acid pickling and cold rolling; and (5) continuous annealing: annealing at 800-920° C. and performing slow cooling at 3-10° C. / s to 690-760° C.; performing fast cooling to 250-350° C. at 50-100° C.; and then heating to 360-460° C., maintaining the temperature for 100-400 s and cooling to room temperature.

The utility model provides a tool for assisting in correcting the distortion of a thin and long sheet of a metal plate, which comprises a base, an optical axis guide rail and a moving part, the moving part and the optical axis guide rail are arranged on the base, the left end and the right end of the optical axis guide rail are respectively connected with a large support module and a small support, and the large support and the small support in the large support module are fixed on the upper surface of the base. The moving part is slidably mounted on the optical axis guide rail and comprises a sliding module and a rotating module, the sliding module is slidably mounted on the optical axis guide rail, and the rotating module is rotatably mounted on the sliding module. According to the tool for assisting the metal plate in correcting the distortion of the thin and long thin plate, the thin plate correcting efficiency is improved, the production cycle of products is shortened, the requirement for the skill level of an operator is lowered by lowering the machining difficulty, and therefore the labor cost is saved.

This invention discloses a process for producing 65Mn steel through continuous casting and rolling of thin slabs, belonging to the field of steel production. The method includes the following steps: steelmaking, casting and rolling, and slow cooling. The steel composition is controlled as follows: C: 0.62%-0.70%, Si: 0.17%-0.37%, Mn: 0.90%-1.20%, P≤0.035%, S≤0.030%, Cr≤0.20%, Ni≤0.30%, Cu≤0.25%, with the balance being Fe and impurities. In the continuous casting process, the slab thickness is 90mm-110mm, the casting speed is controlled at 4.0m / min-4.8m / min, and the temperature difference of the slab cross-section is controlled at 40℃-65℃. In the finishing rolling process, the F3 work roll uses high-speed steel rolls, and the F4 and F5 work rolls use high-nickel-chromium rolls. The crown of the F3 work roll is set to be 200µm larger than that of other steel grades, and the load distribution of each stand follows a decreasing principle. Compared with existing technologies, this method improves the yield rate of straight hair curls.

The embodiment of the invention provides an automobile transport ship deck structure and a ship. According to the deck structure, a deck in the lower area of a cargo hold is in a continuous sheet deck form; a deck in the upper area of the cargo hold adopts a steel framework steel plate deck form; and the structural strength of the hull meets the design requirement. According to the embodiment of the invention, the number of continuous decks at the upper part is reduced, the continuous decks are changed into a frame structure, small thin plates are laid on the frame, and the structure is reinforced, so that on the premise that the structural strength requirement of the ship body is met, the thin plates are prevented from being damaged in the processes of cutting, blanking, assembling, welding, placing, transferring, turning over, hoisting and the like; and a large amount of inevitable repairing work caused by deformation is avoided, so that the construction cost is reduced, the construction time is shortened, and the safety and economical efficiency of the ship structure are improved.

The invention discloses a multi-stage casting purification and asynchronous rolling integrated process of an aluminum alloy sheet, which comprises the steps of multi-stage casting purification, asynchronous hot rolling, high-processing-rate cold rolling, low last-pass reduction rate and optimized intermediate annealing, specifically, the casting purification adopts mixed refining of a sodium-free refining agent and argon, online degassing and two-stage filtering; the high purity of the melt is ensured; the asynchronous hot rolling adopts a pass distribution mode of front-section large reduction and rear-section small reduction; the total machining rate of cold rolling is 71%-80%, and the reduction rate of the last pass is smaller than or equal to 15%; and the intermediate annealing adopts a three-section temperature control process. The method effectively solves the problems of low melt purity, high plate anisotropy and poor surface quality in the traditional process, and realizes green and efficient production of the aluminum alloy thin plate with low earing rate (less than or equal to 5%) and high surface quality.

The invention relates to the technical field of aluminum alloy preparation, in particular to a 7075 aluminum alloy sheet and a preparation method thereof. The preparation method comprises the following steps: A) melting raw materials with specific components, and preserving heat at 720-760 DEG C; (B) carrying out furnace bottom degassing refining on the obtained melt, and then filtering; c) carrying out grain refinement on the obtained melt by adopting a refiner; d) casting the obtained melt under specific casting parameters to obtain a cast ingot; the method comprises the following steps of (1) carrying out primary soaking treatment on a cast ingot, (2) carrying out secondary soaking treatment on the cast ingot, (3) carrying out secondary soaking treatment on the cast ingot, and (4) carrying out rolling deformation on the treated cast ingot to obtain the 7075 aluminum alloy sheet. The cast ingot prepared through the method is fine in grain and compound and more dispersed and uniform in tissue distribution, and the finally obtained 7075 aluminum alloy sheet is stable in mechanical property and small in fluctuation range.

The application relates to the technical field of data processing, and discloses a steel structure plant profile blanking optimization method and system based on Tekla. The method comprises the following steps: extracting component parameters based on Tekla, comparing with a standard database to distinguish rolled pieces and welded pieces; disassembling the welded pieces and correcting a list according to plate thickness; counting inventory to generate an available resource list; adopting a multi-level matching strategy to determine the demand for the rolled pieces; adopting plate cutting optimization to generate thin plate and thick plate cutting plans for the welded pieces, and processing variable cross-section webs through pair-by-pair complementary splicing, so as to determine the demand for coiled materials and steel plates; and constructing a dynamic optimization model integrating inventory and fund constraints, so as to output an optimal scheme under the fund limit constraint. The application improves the comprehensive utilization rate of materials, preferentially guarantees the supply of main components, reduces procurement and inventory costs, and provides scientific decision support for steel structure plant blanking.

The utility model relates to a manual sheet flanging machine in the field of metal processing devices, which is characterized in that a horizontal edge of a lower die holder is horizontally mounted on a rack, and a lower die is mounted at the top of a vertical edge of the lower die holder; the lower die is in an L shape, the horizontal edge of the lower die is fixed to the lower die base, and the vertical edge of the lower die is close to the vertical edge of the lower die base. A baffle is installed between the two side plates, a slit is reserved between the baffle and the vertical edge of the lower die, and an adjustable positioning mechanism is arranged below the slit. Two swing rods are hinged to the side plate, the two swing rods are further hinged to a translation rod respectively, four hinge points on the two swing rods are arranged in a parallelogram shape, any swing rod is connected with a handle, and an L-shaped upper die is fixed to the lower side of the end, extending out of the parallelogram, of the translation rod; when the handle is pulled towards one side of the lower die, the upper die and the lower die jointly bend and form the upper end of the workpiece inserted in the slit. According to the device, edge folding processing is convenient, the plate is convenient to position and place, and the device is suitable for thin plate edge folding processing during can manufacturing.

To provide an Al-Fe-Mn-based aluminum alloy sheet that has excellent hardness and formability, and a predetermined earing ratio.SOLUTION: An aluminum alloy sheet for drawing process contains Fe by 1.05 to 1.50%, Mn by 0.40% or less, Ti by 0.002 to 0.150%, and B by less than 0.05% in mass%, and the remainder consists of Al and impurities. The alloy sheet has a component composition regulated to Si: less than 0.40%, Cu: less than 0.03%, Mg: less than 0.05%, and V: less than 0.03% as impurities, and has the tensile strength of 170 MPa or less, the earing ratio of -2% or more and 2% or less.SELECTED DRAWING: None

The utility model discloses a kind of connecting structure system of anti-floating anchor rod and foundation bottom plate, including foundation bottom plate, foundation cushion, anchor rod core, shear bending rib, anchor head steel plate, expansion waterstop, stress dispersion steel plate, sealing paste.The foundation bottom plate is cast-in-place reinforced concrete slab;The foundation cushion is cast-in-place plain concrete thin plate;The anchor rod core is PSB prestressed high-strength steel;The shear bending rib is the anchor head two ends bending U-shaped steel bar arranged in foundation bottom plate;The anchor head steel plate is steel hollow plate, is sleeved on axial PSB prestressed high-strength steel and is fixed together by upper and lower two limiting high-strength bolt connection;The expansion waterstop is set on limiting high-strength bolt;The stress dispersion steel plate is set on foundation cushion;The sealing paste is set in stress dispersion steel plate below.The utility model has the advantages of good corrosion resistance, high anti-permeability, fast construction speed, energy saving and environmental protection, and its technical and economic benefits are outstanding.

The utility model relates to the technical field of heavy industry machinery, in particular to a plasma cutting machine cutting gun accurate lifting structure which comprises a cylinder, a fixing seat is arranged on the left side of the outer wall of the cylinder, a long hole communicated with an inner cavity is formed in the right side of the outer wall face of the cylinder, and a motor is arranged on the top end wall of the cylinder. The upper inner wall and the lower inner wall of the cylinder are rotationally connected with a lead screw through bearings, the top end of the lead screw is fixedly connected with the output end of a motor through a coupler, and the outer wall of the lead screw is in threaded connection with a connecting block. Lifting of the cutting gun supporting base is achieved in the mode that the motor drives the lead screw, the problem that a traditional pneumatic lifting device is insufficient in precision due to air compressibility is effectively solved, the cutting gun can be accurately positioned at the needed height by accurately controlling the number of revolutions of the motor, the cutting precision is greatly improved, and the working efficiency is improved. The cutting device is particularly suitable for cutting precise metal parts and sheet materials, can remarkably reduce quality defects such as unevenness of cutting surfaces and non-uniform notch width, and improves the machining precision and quality of products.

The invention relates to the technical field of metal material preparation, and particularly discloses a method for preparing an ODS alloy based on a 3D printing and ply rolling process, and the method comprises the following steps: S1, uniformly mixing alloy powder with reaction element powder; s2, preparing the uniformly mixed powder into a block material; s3, stacking the blocks to form a sheathed steel material A, and carrying out hot isostatic pressing treatment; s4, hot rolling treatment is carried out, a sheath is removed, and a hot rolled plate is formed; cutting and processing the hot-rolled plate into thin plates with the same size; s5, repeating the steps S3 to S4 until the reaction elements are uniformly distributed to obtain a thin plate; s6, performing high-temperature oxygen permeation treatment; s7, the thin plates are stacked to form sheathed steel B, and hot isostatic pressing treatment is carried out; and S8, the sheathed steel B is subjected to hot forging, a sheath is removed, and the ODS alloy is obtained. The prepared ODS alloy has the advantages of high purity, high-uniformity oxidation phase, controllable crystal grains, stable quality and isotropy.

The utility model relates to the technical field of thin plate welding, and discloses a thin plate splicing long welding seam mechanical fine adjustment type welding tractor which comprises a fixing frame, a transverse plate is fixedly connected to the lower portion of the fixing frame, a smoke treatment assembly is arranged on the upper portion of the transverse plate, and a fine adjustment assembly is arranged on the upper portion of the fixing frame. The fine adjustment assembly comprises a rack plate, the rack plate is fixedly connected to the front side of the upper portion of the fixing frame, a sliding block is arranged outside the rack plate, a mounting frame is fixedly connected to the upper portion of the sliding block, a motor is arranged on the left side of the exterior of the mounting frame, and the output end of the motor is fixedly connected with a gear. According to the utility model, the position of the welding tractor can be conveniently adjusted transversely or longitudinally, so that the welding tractor can adapt to various complex welding, such as welding parts with different shapes or welding operation at different positions, and the problems of non-uniform welding seam width, non-uniform welding depth and the like are avoided, thereby improving the welding quality.

The application discloses a method for producing oriented silicon steel by adopting a medium-thin slab continuous casting and rolling technology combined with a nitriding method and belongs to the field of steel metallurgy. 1.7 <1.00W / Kg, B8>1.90T; the application adopts an ASP continuous casting and rolling process, controls the size and quantity of AlN inherent inhibitors to be uniformly distributed in the slab, adopts a low-temperature slab short-time heating process, controls the hot-rolled structure to be uniform, adopts a two-stage normalizing process, adopts aging rolling in primary cold rolling, adjusts a decarburization annealing process, a high-temperature nitriding process and a suitable high-temperature annealing process, and thus the magnetic performance of the product is improved, the iron loss is reduced, the comprehensive yield is greatly improved, and the application prospect is very wide.

This application relates to the field of grooved wire cutting technology, and in particular to a positioning device for grooved wire cutting. The device includes a base and a positioning assembly. The positioning assembly is mounted on the base and includes a fixed plate and a movable plate. The fixed plate is fixedly connected to the base, and the movable plate is slidably connected to the base via a slide rail. An elastic clamping mechanism is provided between the fixed plate and the movable plate. Both the fixed plate and the movable plate have vacuum suction holes, which are connected to an external vacuum pump via air pipes. This application, through the combination of the elastic clamping mechanism and the vacuum suction holes, achieves rapid positioning and stable clamping of workpieces of different sizes and shapes, significantly improving positioning efficiency and accuracy. It is particularly suitable for positioning thin plates or irregularly shaped workpieces. Simultaneously, the movable plate can be quickly adjusted via the slide rail and adjusting threaded rod to meet the switching needs of multiple workpiece specifications, enhancing the adaptability and flexibility of the device.

The invention discloses numerical control uncoiling and leveling flying shear sizing equipment for thin plate machining, and belongs to the technical field of thin plate machining. An uncoiling machine and a coiled material piece supported by the uncoiling machine are arranged, and the coiled material piece is matched with a supporting piece connected with the uncoiling machine for supporting and feeding; comprising a leveling machine arranged on the right side of the outer surface of the uncoiling machine, a leveling roller assembly is assembled on the inner surface of the leveling machine, and a conveying roller assembly is assembled on the right side of the leveling machine. According to the numerical control uncoiling and leveling flying shear sizing equipment for thin plate machining, the upper shearing piece and the lower shearing piece which are convenient to move are arranged, a shear knife can be controlled to cut a coiled material piece, the shearing stability is improved, the stability of disassembly, assembly and replacement of the shear knife is controlled through clamping pieces assembled on the upper shearing piece and the lower shearing piece correspondingly, and the shearing efficiency is improved. And through the use of the sizing piece, the sizing piece is matched with the telescopic piece, the sizing regulation and control stability is improved, and the situation that the size is unstable is prevented.